documentation: Bump version

Co-authored-by: anytls <anytls>

.github/workflows/build.yml

@@ -155,7 +155,7 @@ jobs:
         uses: goreleaser/goreleaser-action@v6
         with:
           distribution: goreleaser-pro
-          version: 2.5.1
+          version: '~> v2'
           install-only: true
       - name: Extract signing key
         run: |-

.golangci.yml

@@ -27,7 +27,6 @@ run:
     - with_quic
     - with_dhcp
     - with_wireguard
-    - with_ech
     - with_utls
     - with_reality_server
     - with_acme

.goreleaser.fury.yaml

@@ -14,7 +14,6 @@ builds:
       - with_quic
       - with_dhcp
       - with_wireguard
-      - with_ech
       - with_utls
       - with_reality_server
       - with_acme

.goreleaser.yaml

@@ -16,7 +16,6 @@ builds:
       - with_quic
       - with_dhcp
       - with_wireguard
-      - with_ech
       - with_utls
       - with_reality_server
       - with_acme
@@ -24,6 +23,7 @@ builds:
       - with_tailscale
     env:
       - CGO_ENABLED=0
+      - GOTOOLCHAIN=local
     targets:
       - linux_386
       - linux_amd64_v1
@@ -62,6 +62,7 @@ builds:
     <<: *template
     env:
       - CGO_ENABLED=1
+      - GOTOOLCHAIN=local
     overrides:
       - goos: android
         goarch: arm
@@ -96,10 +97,12 @@ archives:
     builds:
       - main
       - android
-    format: tar.gz
+    formats:
+      - tar.gz
     format_overrides:
       - goos: windows
-        format: zip
+        formats:
+          - zip
     wrap_in_directory: true
     files:
       - LICENSE

Dockerfile

@@ -13,7 +13,7 @@ RUN set -ex \
     && export COMMIT=$(git rev-parse --short HEAD) \
     && export VERSION=$(go run ./cmd/internal/read_tag) \
     && go build -v -trimpath -tags \
-        "with_gvisor,with_quic,with_dhcp,with_wireguard,with_ech,with_utls,with_reality_server,with_acme,with_clash_api" \
+        "with_gvisor,with_quic,with_dhcp,with_wireguard,with_utls,with_reality_server,with_acme,with_clash_api" \
         -o /go/bin/sing-box \
         -ldflags "-X \"github.com/sagernet/sing-box/constant.Version=$VERSION\" -s -w -buildid=" \
         ./cmd/sing-box

Makefile

@@ -1,10 +1,9 @@
 NAME = sing-box
 COMMIT = $(shell git rev-parse --short HEAD)
 TAGS_GO120 = with_gvisor,with_dhcp,with_wireguard,with_reality_server,with_clash_api,with_quic,with_utls
-TAGS_GO121 = with_ech
 TAGS_GO123 = with_tailscale
-TAGS ?= $(TAGS_GO118),$(TAGS_GO120),$(TAGS_GO121),$(TAGS_GO123)
-TAGS_TEST ?= with_gvisor,with_quic,with_wireguard,with_grpc,with_ech,with_utls,with_reality_server
+TAGS ?= $(TAGS_GO120),$(TAGS_GO123)
+TAGS_TEST ?= with_gvisor,with_quic,with_wireguard,with_grpc,with_utls,with_reality_server
 
 GOHOSTOS = $(shell go env GOHOSTOS)
 GOHOSTARCH = $(shell go env GOHOSTARCH)
@@ -18,14 +17,17 @@ PREFIX ?= $(shell go env GOPATH)
 .PHONY: test release docs build
 
 build:
+	export GOTOOLCHAIN=local && \
 	go build $(MAIN_PARAMS) $(MAIN)
 
 ci_build_go120:
-	go build $(PARAMS) $(MAIN)
+	export GOTOOLCHAIN=local && \
+	go build $(PARAMS) $(MAIN) && \
 	go build $(PARAMS) -tags "$(TAGS_GO120)" $(MAIN)
 
 ci_build:
-	go build $(PARAMS) $(MAIN)
+	export GOTOOLCHAIN=local && \
+	go build $(PARAMS) $(MAIN) && \
 	go build $(MAIN_PARAMS) $(MAIN)
 
 generate_completions:

adapter/network.go

@@ -25,6 +25,7 @@ type NetworkManager interface {
 	PackageManager() tun.PackageManager
 	WIFIState() WIFIState
 	ResetNetwork()
+	UpdateWIFIState()
 }
 
 type NetworkOptions struct {

adapter/outbound.go

@@ -5,7 +5,6 @@ import (
 
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
-	"github.com/sagernet/sing-tun"
 	N "github.com/sagernet/sing/common/network"
 )
 
@@ -19,11 +18,6 @@ type Outbound interface {
 	N.Dialer
 }
 
-type DirectRouteOutbound interface {
-	Outbound
-	NewDirectRouteConnection(metadata InboundContext, routeContext tun.DirectRouteContext) (tun.DirectRouteDestination, error)
-}
-
 type OutboundRegistry interface {
 	option.OutboundOptionsRegistry
 	CreateOutbound(ctx context.Context, router Router, logger log.ContextLogger, tag string, outboundType string, options any) (Outbound, error)

adapter/outbound/manager.go

@@ -246,8 +246,6 @@ func (m *Manager) Create(ctx context.Context, router adapter.Router, logger log.
 	if err != nil {
 		return err
 	}
-	m.access.Lock()
-	defer m.access.Unlock()
 	if m.started {
 		for _, stage := range adapter.ListStartStages {
 			err = adapter.LegacyStart(outbound, stage)
@@ -256,6 +254,8 @@ func (m *Manager) Create(ctx context.Context, router adapter.Router, logger log.
 			}
 		}
 	}
+	m.access.Lock()
+	defer m.access.Unlock()
 	if existsOutbound, loaded := m.outboundByTag[tag]; loaded {
 		if m.started {
 			err = common.Close(existsOutbound)

adapter/router.go

@@ -8,7 +8,6 @@ import (
 	"sync"
 
 	C "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing-tun"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
 	"github.com/sagernet/sing/common/ntp"
@@ -20,7 +19,7 @@ import (
 type Router interface {
 	Lifecycle
 	ConnectionRouter
-	PreMatch(metadata InboundContext, context tun.DirectRouteContext) (tun.DirectRouteDestination, error)
+	PreMatch(metadata InboundContext) error
 	ConnectionRouterEx
 	RuleSet(tag string) (RuleSet, bool)
 	NeedWIFIState() bool

cmd/internal/build_libbox/main.go

@@ -58,7 +58,7 @@ func init() {
 	sharedFlags = append(sharedFlags, "-ldflags", "-X github.com/sagernet/sing-box/constant.Version="+currentTag+" -s -w -buildid=")
 	debugFlags = append(debugFlags, "-ldflags", "-X github.com/sagernet/sing-box/constant.Version="+currentTag)
 
-	sharedTags = append(sharedTags, "with_gvisor", "with_quic", "with_wireguard", "with_ech", "with_utls", "with_clash_api", "with_tailscale")
+	sharedTags = append(sharedTags, "with_gvisor", "with_quic", "with_wireguard", "with_utls", "with_clash_api", "with_tailscale")
 	iosTags = append(iosTags, "with_dhcp", "with_low_memory", "with_conntrack")
 	debugTags = append(debugTags, "debug")
 }

cmd/sing-box/cmd_generate_ech.go

@@ -9,8 +9,6 @@ import (
 	"github.com/spf13/cobra"
 )
 
-var pqSignatureSchemesEnabled bool
-
 var commandGenerateECHKeyPair = &cobra.Command{
 	Use:   "ech-keypair <plain_server_name>",
 	Short: "Generate TLS ECH key pair",
@@ -24,12 +22,11 @@ var commandGenerateECHKeyPair = &cobra.Command{
 }
 
 func init() {
-	commandGenerateECHKeyPair.Flags().BoolVar(&pqSignatureSchemesEnabled, "pq-signature-schemes-enabled", false, "Enable PQ signature schemes")
 	commandGenerate.AddCommand(commandGenerateECHKeyPair)
 }
 
 func generateECHKeyPair(serverName string) error {
-	configPem, keyPem, err := tls.ECHKeygenDefault(serverName, pqSignatureSchemesEnabled)
+	configPem, keyPem, err := tls.ECHKeygenDefault(serverName)
 	if err != nil {
 		return err
 	}

common/badtls/read_wait_ech.go

@@ -1,31 +0,0 @@
-//go:build go1.21 && !without_badtls && with_ech
-
-package badtls
-
-import (
-	"net"
-	_ "unsafe"
-
-	"github.com/sagernet/cloudflare-tls"
-	"github.com/sagernet/sing/common"
-)
-
-func init() {
-	tlsRegistry = append(tlsRegistry, func(conn net.Conn) (loaded bool, tlsReadRecord func() error, tlsHandlePostHandshakeMessage func() error) {
-		tlsConn, loaded := common.Cast[*tls.Conn](conn)
-		if !loaded {
-			return
-		}
-		return true, func() error {
-				return echReadRecord(tlsConn)
-			}, func() error {
-				return echHandlePostHandshakeMessage(tlsConn)
-			}
-	})
-}
-
-//go:linkname echReadRecord github.com/sagernet/cloudflare-tls.(*Conn).readRecord
-func echReadRecord(c *tls.Conn) error
-
-//go:linkname echHandlePostHandshakeMessage github.com/sagernet/cloudflare-tls.(*Conn).handlePostHandshakeMessage
-func echHandlePostHandshakeMessage(c *tls.Conn) error

common/certificate/store.go

@@ -34,10 +34,13 @@ func NewStore(ctx context.Context, logger logger.Logger, options option.Certific
 	switch options.Store {
 	case C.CertificateStoreSystem, "":
 		systemPool = x509.NewCertPool()
+		platformInterface := service.FromContext[platform.Interface](ctx)
 		var systemValid bool
-		for _, cert := range service.FromContext[platform.Interface](ctx).SystemCertificates() {
-			if systemPool.AppendCertsFromPEM([]byte(cert)) {
-				systemValid = true
+		if platformInterface != nil {
+			for _, cert := range platformInterface.SystemCertificates() {
+				if systemPool.AppendCertsFromPEM([]byte(cert)) {
+					systemValid = true
+				}
 			}
 		}
 		if !systemValid {

common/dialer/default.go

@@ -210,6 +210,8 @@ func NewDefault(ctx context.Context, options option.DialerOptions) (*DefaultDial
 func (d *DefaultDialer) DialContext(ctx context.Context, network string, address M.Socksaddr) (net.Conn, error) {
 	if !address.IsValid() {
 		return nil, E.New("invalid address")
+	} else if address.IsFqdn() {
+		return nil, E.New("domain not resolved")
 	}
 	if d.networkStrategy == nil {
 		switch N.NetworkName(network) {

common/dialer/default_parallel_interface.go

@@ -18,6 +18,7 @@ func (d *DefaultDialer) dialParallelInterface(ctx context.Context, dialer net.Di
 	if len(primaryInterfaces)+len(fallbackInterfaces) == 0 {
 		return nil, false, E.New("no available network interface")
 	}
+	defaultInterface := d.networkManager.InterfaceMonitor().DefaultInterface()
 	if fallbackDelay == 0 {
 		fallbackDelay = N.DefaultFallbackDelay
 	}
@@ -31,7 +32,9 @@ func (d *DefaultDialer) dialParallelInterface(ctx context.Context, dialer net.Di
 	results := make(chan dialResult) // unbuffered
 	startRacer := func(ctx context.Context, primary bool, iif adapter.NetworkInterface) {
 		perNetDialer := dialer
-		perNetDialer.Control = control.Append(perNetDialer.Control, control.BindToInterface(nil, iif.Name, iif.Index))
+		if defaultInterface == nil || iif.Index != defaultInterface.Index {
+			perNetDialer.Control = control.Append(perNetDialer.Control, control.BindToInterface(nil, iif.Name, iif.Index))
+		}
 		conn, err := perNetDialer.DialContext(ctx, network, addr)
 		if err != nil {
 			select {
@@ -89,6 +92,7 @@ func (d *DefaultDialer) dialParallelInterfaceFastFallback(ctx context.Context, d
 	if len(primaryInterfaces)+len(fallbackInterfaces) == 0 {
 		return nil, false, E.New("no available network interface")
 	}
+	defaultInterface := d.networkManager.InterfaceMonitor().DefaultInterface()
 	if fallbackDelay == 0 {
 		fallbackDelay = N.DefaultFallbackDelay
 	}
@@ -103,7 +107,9 @@ func (d *DefaultDialer) dialParallelInterfaceFastFallback(ctx context.Context, d
 	results := make(chan dialResult) // unbuffered
 	startRacer := func(ctx context.Context, primary bool, iif adapter.NetworkInterface) {
 		perNetDialer := dialer
-		perNetDialer.Control = control.Append(perNetDialer.Control, control.BindToInterface(nil, iif.Name, iif.Index))
+		if defaultInterface == nil || iif.Index != defaultInterface.Index {
+			perNetDialer.Control = control.Append(perNetDialer.Control, control.BindToInterface(nil, iif.Name, iif.Index))
+		}
 		conn, err := perNetDialer.DialContext(ctx, network, addr)
 		if err != nil {
 			select {
@@ -149,10 +155,13 @@ func (d *DefaultDialer) listenSerialInterfacePacket(ctx context.Context, listene
 	if len(primaryInterfaces)+len(fallbackInterfaces) == 0 {
 		return nil, E.New("no available network interface")
 	}
+	defaultInterface := d.networkManager.InterfaceMonitor().DefaultInterface()
 	var errors []error
 	for _, primaryInterface := range primaryInterfaces {
 		perNetListener := listener
-		perNetListener.Control = control.Append(perNetListener.Control, control.BindToInterface(nil, primaryInterface.Name, primaryInterface.Index))
+		if defaultInterface == nil || primaryInterface.Index != defaultInterface.Index {
+			perNetListener.Control = control.Append(perNetListener.Control, control.BindToInterface(nil, primaryInterface.Name, primaryInterface.Index))
+		}
 		conn, err := perNetListener.ListenPacket(ctx, network, addr)
 		if err == nil {
 			return conn, nil
@@ -161,7 +170,9 @@ func (d *DefaultDialer) listenSerialInterfacePacket(ctx context.Context, listene
 	}
 	for _, fallbackInterface := range fallbackInterfaces {
 		perNetListener := listener
-		perNetListener.Control = control.Append(perNetListener.Control, control.BindToInterface(nil, fallbackInterface.Name, fallbackInterface.Index))
+		if defaultInterface == nil || fallbackInterface.Index != defaultInterface.Index {
+			perNetListener.Control = control.Append(perNetListener.Control, control.BindToInterface(nil, fallbackInterface.Name, fallbackInterface.Index))
+		}
 		conn, err := perNetListener.ListenPacket(ctx, network, addr)
 		if err == nil {
 			return conn, nil

common/dialer/resolve.go

@@ -44,6 +44,20 @@ type resolveDialer struct {
 }
 
 func NewResolveDialer(ctx context.Context, dialer N.Dialer, parallel bool, server string, queryOptions adapter.DNSQueryOptions, fallbackDelay time.Duration) ResolveDialer {
+	if parallelDialer, isParallel := dialer.(ParallelInterfaceDialer); isParallel {
+		return &resolveParallelNetworkDialer{
+			resolveDialer{
+				transport:     service.FromContext[adapter.DNSTransportManager](ctx),
+				router:        service.FromContext[adapter.DNSRouter](ctx),
+				dialer:        dialer,
+				parallel:      parallel,
+				server:        server,
+				queryOptions:  queryOptions,
+				fallbackDelay: fallbackDelay,
+			},
+			parallelDialer,
+		}
+	}
 	return &resolveDialer{
 		transport:     service.FromContext[adapter.DNSTransportManager](ctx),
 		router:        service.FromContext[adapter.DNSRouter](ctx),
@@ -60,21 +74,6 @@ type resolveParallelNetworkDialer struct {
 	dialer ParallelInterfaceDialer
 }
 
-func NewResolveParallelInterfaceDialer(ctx context.Context, dialer ParallelInterfaceDialer, parallel bool, server string, queryOptions adapter.DNSQueryOptions, fallbackDelay time.Duration) ParallelInterfaceResolveDialer {
-	return &resolveParallelNetworkDialer{
-		resolveDialer{
-			transport:     service.FromContext[adapter.DNSTransportManager](ctx),
-			router:        service.FromContext[adapter.DNSRouter](ctx),
-			dialer:        dialer,
-			parallel:      parallel,
-			server:        server,
-			queryOptions:  queryOptions,
-			fallbackDelay: fallbackDelay,
-		},
-		dialer,
-	}
-}
-
 func (d *resolveDialer) initialize() error {
 	d.initOnce.Do(d.initServer)
 	return d.initErr

common/sniff/quic_test.go

@@ -12,6 +12,26 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
+func TestSniffQUICChromeNew(t *testing.T) {
+	t.Parallel()
+	pkt, err := hex.DecodeString("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")
+	require.NoError(t, err)
+	var metadata adapter.InboundContext
+	err = sniff.QUICClientHello(context.Background(), &metadata, pkt)
+	require.Equal(t, metadata.Protocol, C.ProtocolQUIC)
+	require.Equal(t, metadata.Client, C.ClientChromium)
+	require.ErrorIs(t, err, sniff.ErrClientHelloFragmented)
+	pkt, err = hex.DecodeString("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")
+	require.NoError(t, err)
+	err = sniff.QUICClientHello(context.Background(), &metadata, pkt)
+	require.ErrorIs(t, err, sniff.ErrClientHelloFragmented)
+	pkt, err = hex.DecodeString("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")
+	require.NoError(t, err)
+	err = sniff.QUICClientHello(context.Background(), &metadata, pkt)
+	require.NoError(t, err)
+	require.Equal(t, "www.google.com", metadata.Domain)
+}
+
 func TestSniffQUICChromium(t *testing.T) {
 	t.Parallel()
 	pkt, err := hex.DecodeString("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")

common/tls/client.go

@@ -29,15 +29,12 @@ func NewClient(ctx context.Context, serverAddress string, options option.Outboun
 	if !options.Enabled {
 		return nil, nil
 	}
-	if options.ECH != nil && options.ECH.Enabled {
-		return NewECHClient(ctx, serverAddress, options)
-	} else if options.Reality != nil && options.Reality.Enabled {
+	if options.Reality != nil && options.Reality.Enabled {
 		return NewRealityClient(ctx, serverAddress, options)
 	} else if options.UTLS != nil && options.UTLS.Enabled {
 		return NewUTLSClient(ctx, serverAddress, options)
-	} else {
-		return NewSTDClient(ctx, serverAddress, options)
 	}
+	return NewSTDClient(ctx, serverAddress, options)
 }
 
 func ClientHandshake(ctx context.Context, conn net.Conn, config Config) (Conn, error) {

common/tls/ech.go

@@ -0,0 +1,174 @@
+//go:build go1.24
+
+package tls
+
+import (
+	"context"
+	"crypto/tls"
+	"encoding/base64"
+	"encoding/pem"
+	"net"
+	"os"
+	"strings"
+
+	"github.com/sagernet/sing-box/adapter"
+	"github.com/sagernet/sing-box/dns"
+	"github.com/sagernet/sing-box/experimental/deprecated"
+	"github.com/sagernet/sing-box/option"
+	E "github.com/sagernet/sing/common/exceptions"
+	aTLS "github.com/sagernet/sing/common/tls"
+	"github.com/sagernet/sing/service"
+
+	mDNS "github.com/miekg/dns"
+	"golang.org/x/crypto/cryptobyte"
+)
+
+func parseECHClientConfig(ctx context.Context, options option.OutboundTLSOptions, tlsConfig *tls.Config) (Config, error) {
+	var echConfig []byte
+	if len(options.ECH.Config) > 0 {
+		echConfig = []byte(strings.Join(options.ECH.Config, "\n"))
+	} else if options.ECH.ConfigPath != "" {
+		content, err := os.ReadFile(options.ECH.ConfigPath)
+		if err != nil {
+			return nil, E.Cause(err, "read ECH config")
+		}
+		echConfig = content
+	}
+	//nolint:staticcheck
+	if options.ECH.PQSignatureSchemesEnabled || options.ECH.DynamicRecordSizingDisabled {
+		deprecated.Report(ctx, deprecated.OptionLegacyECHOptions)
+	}
+	if len(echConfig) > 0 {
+		block, rest := pem.Decode(echConfig)
+		if block == nil || block.Type != "ECH CONFIGS" || len(rest) > 0 {
+			return nil, E.New("invalid ECH configs pem")
+		}
+		tlsConfig.EncryptedClientHelloConfigList = block.Bytes
+		return &STDClientConfig{tlsConfig}, nil
+	} else {
+		return &STDECHClientConfig{STDClientConfig{tlsConfig}, service.FromContext[adapter.DNSRouter](ctx)}, nil
+	}
+}
+
+func parseECHServerConfig(ctx context.Context, options option.InboundTLSOptions, tlsConfig *tls.Config, echKeyPath *string) error {
+	var echKey []byte
+	if len(options.ECH.Key) > 0 {
+		echKey = []byte(strings.Join(options.ECH.Key, "\n"))
+	} else if options.ECH.KeyPath != "" {
+		content, err := os.ReadFile(options.ECH.KeyPath)
+		if err != nil {
+			return E.Cause(err, "read ECH keys")
+		}
+		echKey = content
+		*echKeyPath = options.ECH.KeyPath
+	} else {
+		return E.New("missing ECH keys")
+	}
+	block, rest := pem.Decode(echKey)
+	if block == nil || block.Type != "ECH KEYS" || len(rest) > 0 {
+		return E.New("invalid ECH keys pem")
+	}
+	echKeys, err := UnmarshalECHKeys(block.Bytes)
+	if err != nil {
+		return E.Cause(err, "parse ECH keys")
+	}
+	tlsConfig.EncryptedClientHelloKeys = echKeys
+	//nolint:staticcheck
+	if options.ECH.PQSignatureSchemesEnabled || options.ECH.DynamicRecordSizingDisabled {
+		deprecated.Report(ctx, deprecated.OptionLegacyECHOptions)
+	}
+	return nil
+}
+
+func reloadECHKeys(echKeyPath string, tlsConfig *tls.Config) error {
+	echKey, err := os.ReadFile(echKeyPath)
+	if err != nil {
+		return E.Cause(err, "reload ECH keys from ", echKeyPath)
+	}
+	block, _ := pem.Decode(echKey)
+	if block == nil || block.Type != "ECH KEYS" {
+		return E.New("invalid ECH keys pem")
+	}
+	echKeys, err := UnmarshalECHKeys(block.Bytes)
+	if err != nil {
+		return E.Cause(err, "parse ECH keys")
+	}
+	tlsConfig.EncryptedClientHelloKeys = echKeys
+	return nil
+}
+
+type STDECHClientConfig struct {
+	STDClientConfig
+	dnsRouter adapter.DNSRouter
+}
+
+func (s *STDECHClientConfig) ClientHandshake(ctx context.Context, conn net.Conn) (aTLS.Conn, error) {
+	if len(s.config.EncryptedClientHelloConfigList) == 0 {
+		message := &mDNS.Msg{
+			MsgHdr: mDNS.MsgHdr{
+				RecursionDesired: true,
+			},
+			Question: []mDNS.Question{
+				{
+					Name:   mDNS.Fqdn(s.config.ServerName),
+					Qtype:  mDNS.TypeHTTPS,
+					Qclass: mDNS.ClassINET,
+				},
+			},
+		}
+		response, err := s.dnsRouter.Exchange(ctx, message, adapter.DNSQueryOptions{})
+		if err != nil {
+			return nil, E.Cause(err, "fetch ECH config list")
+		}
+		if response.Rcode != mDNS.RcodeSuccess {
+			return nil, E.Cause(dns.RcodeError(response.Rcode), "fetch ECH config list")
+		}
+		for _, rr := range response.Answer {
+			switch resource := rr.(type) {
+			case *mDNS.HTTPS:
+				for _, value := range resource.Value {
+					if value.Key().String() == "ech" {
+						echConfigList, err := base64.StdEncoding.DecodeString(value.String())
+						if err != nil {
+							return nil, E.Cause(err, "decode ECH config")
+						}
+						s.config.EncryptedClientHelloConfigList = echConfigList
+					}
+				}
+			}
+		}
+		return nil, E.New("no ECH config found in DNS records")
+	}
+	tlsConn, err := s.Client(conn)
+	if err != nil {
+		return nil, err
+	}
+	err = tlsConn.HandshakeContext(ctx)
+	if err != nil {
+		return nil, err
+	}
+	return tlsConn, nil
+}
+
+func (s *STDECHClientConfig) Clone() Config {
+	return &STDECHClientConfig{STDClientConfig{s.config.Clone()}, s.dnsRouter}
+}
+
+func UnmarshalECHKeys(raw []byte) ([]tls.EncryptedClientHelloKey, error) {
+	var keys []tls.EncryptedClientHelloKey
+	rawString := cryptobyte.String(raw)
+	for !rawString.Empty() {
+		var key tls.EncryptedClientHelloKey
+		if !rawString.ReadUint16LengthPrefixed((*cryptobyte.String)(&key.PrivateKey)) {
+			return nil, E.New("error parsing private key")
+		}
+		if !rawString.ReadUint16LengthPrefixed((*cryptobyte.String)(&key.Config)) {
+			return nil, E.New("error parsing config")
+		}
+		keys = append(keys, key)
+	}
+	if len(keys) == 0 {
+		return nil, E.New("empty ECH keys")
+	}
+	return keys, nil
+}

common/tls/ech_client.go

@@ -1,244 +0,0 @@
-//go:build with_ech
-
-package tls
-
-import (
-	"context"
-	"crypto/tls"
-	"crypto/x509"
-	"encoding/base64"
-	"encoding/pem"
-	"net"
-	"net/netip"
-	"os"
-	"strings"
-
-	cftls "github.com/sagernet/cloudflare-tls"
-	"github.com/sagernet/sing-box/adapter"
-	"github.com/sagernet/sing-box/dns"
-	"github.com/sagernet/sing-box/option"
-	E "github.com/sagernet/sing/common/exceptions"
-	"github.com/sagernet/sing/common/ntp"
-	"github.com/sagernet/sing/service"
-
-	mDNS "github.com/miekg/dns"
-)
-
-type echClientConfig struct {
-	config *cftls.Config
-}
-
-func (c *echClientConfig) ServerName() string {
-	return c.config.ServerName
-}
-
-func (c *echClientConfig) SetServerName(serverName string) {
-	c.config.ServerName = serverName
-}
-
-func (c *echClientConfig) NextProtos() []string {
-	return c.config.NextProtos
-}
-
-func (c *echClientConfig) SetNextProtos(nextProto []string) {
-	c.config.NextProtos = nextProto
-}
-
-func (c *echClientConfig) Config() (*STDConfig, error) {
-	return nil, E.New("unsupported usage for ECH")
-}
-
-func (c *echClientConfig) Client(conn net.Conn) (Conn, error) {
-	return &echConnWrapper{cftls.Client(conn, c.config)}, nil
-}
-
-func (c *echClientConfig) Clone() Config {
-	return &echClientConfig{
-		config: c.config.Clone(),
-	}
-}
-
-type echConnWrapper struct {
-	*cftls.Conn
-}
-
-func (c *echConnWrapper) ConnectionState() tls.ConnectionState {
-	state := c.Conn.ConnectionState()
-	//nolint:staticcheck
-	return tls.ConnectionState{
-		Version:                     state.Version,
-		HandshakeComplete:           state.HandshakeComplete,
-		DidResume:                   state.DidResume,
-		CipherSuite:                 state.CipherSuite,
-		NegotiatedProtocol:          state.NegotiatedProtocol,
-		NegotiatedProtocolIsMutual:  state.NegotiatedProtocolIsMutual,
-		ServerName:                  state.ServerName,
-		PeerCertificates:            state.PeerCertificates,
-		VerifiedChains:              state.VerifiedChains,
-		SignedCertificateTimestamps: state.SignedCertificateTimestamps,
-		OCSPResponse:                state.OCSPResponse,
-		TLSUnique:                   state.TLSUnique,
-	}
-}
-
-func (c *echConnWrapper) Upstream() any {
-	return c.Conn
-}
-
-func NewECHClient(ctx context.Context, serverAddress string, options option.OutboundTLSOptions) (Config, error) {
-	var serverName string
-	if options.ServerName != "" {
-		serverName = options.ServerName
-	} else if serverAddress != "" {
-		if _, err := netip.ParseAddr(serverName); err != nil {
-			serverName = serverAddress
-		}
-	}
-	if serverName == "" && !options.Insecure {
-		return nil, E.New("missing server_name or insecure=true")
-	}
-
-	var tlsConfig cftls.Config
-	tlsConfig.Time = ntp.TimeFuncFromContext(ctx)
-	tlsConfig.RootCAs = adapter.RootPoolFromContext(ctx)
-	if options.DisableSNI {
-		tlsConfig.ServerName = "127.0.0.1"
-	} else {
-		tlsConfig.ServerName = serverName
-	}
-	if options.Insecure {
-		tlsConfig.InsecureSkipVerify = options.Insecure
-	} else if options.DisableSNI {
-		tlsConfig.InsecureSkipVerify = true
-		tlsConfig.VerifyConnection = func(state cftls.ConnectionState) error {
-			verifyOptions := x509.VerifyOptions{
-				DNSName:       serverName,
-				Intermediates: x509.NewCertPool(),
-			}
-			for _, cert := range state.PeerCertificates[1:] {
-				verifyOptions.Intermediates.AddCert(cert)
-			}
-			_, err := state.PeerCertificates[0].Verify(verifyOptions)
-			return err
-		}
-	}
-	if len(options.ALPN) > 0 {
-		tlsConfig.NextProtos = options.ALPN
-	}
-	if options.MinVersion != "" {
-		minVersion, err := ParseTLSVersion(options.MinVersion)
-		if err != nil {
-			return nil, E.Cause(err, "parse min_version")
-		}
-		tlsConfig.MinVersion = minVersion
-	}
-	if options.MaxVersion != "" {
-		maxVersion, err := ParseTLSVersion(options.MaxVersion)
-		if err != nil {
-			return nil, E.Cause(err, "parse max_version")
-		}
-		tlsConfig.MaxVersion = maxVersion
-	}
-	if options.CipherSuites != nil {
-	find:
-		for _, cipherSuite := range options.CipherSuites {
-			for _, tlsCipherSuite := range cftls.CipherSuites() {
-				if cipherSuite == tlsCipherSuite.Name {
-					tlsConfig.CipherSuites = append(tlsConfig.CipherSuites, tlsCipherSuite.ID)
-					continue find
-				}
-			}
-			return nil, E.New("unknown cipher_suite: ", cipherSuite)
-		}
-	}
-	var certificate []byte
-	if len(options.Certificate) > 0 {
-		certificate = []byte(strings.Join(options.Certificate, "\n"))
-	} else if options.CertificatePath != "" {
-		content, err := os.ReadFile(options.CertificatePath)
-		if err != nil {
-			return nil, E.Cause(err, "read certificate")
-		}
-		certificate = content
-	}
-	if len(certificate) > 0 {
-		certPool := x509.NewCertPool()
-		if !certPool.AppendCertsFromPEM(certificate) {
-			return nil, E.New("failed to parse certificate:\n\n", certificate)
-		}
-		tlsConfig.RootCAs = certPool
-	}
-
-	// ECH Config
-
-	tlsConfig.ECHEnabled = true
-	tlsConfig.PQSignatureSchemesEnabled = options.ECH.PQSignatureSchemesEnabled
-	tlsConfig.DynamicRecordSizingDisabled = options.ECH.DynamicRecordSizingDisabled
-
-	var echConfig []byte
-	if len(options.ECH.Config) > 0 {
-		echConfig = []byte(strings.Join(options.ECH.Config, "\n"))
-	} else if options.ECH.ConfigPath != "" {
-		content, err := os.ReadFile(options.ECH.ConfigPath)
-		if err != nil {
-			return nil, E.Cause(err, "read ECH config")
-		}
-		echConfig = content
-	}
-
-	if len(echConfig) > 0 {
-		block, rest := pem.Decode(echConfig)
-		if block == nil || block.Type != "ECH CONFIGS" || len(rest) > 0 {
-			return nil, E.New("invalid ECH configs pem")
-		}
-		echConfigs, err := cftls.UnmarshalECHConfigs(block.Bytes)
-		if err != nil {
-			return nil, E.Cause(err, "parse ECH configs")
-		}
-		tlsConfig.ClientECHConfigs = echConfigs
-	} else {
-		tlsConfig.GetClientECHConfigs = fetchECHClientConfig(ctx)
-	}
-	return &echClientConfig{&tlsConfig}, nil
-}
-
-func fetchECHClientConfig(ctx context.Context) func(_ context.Context, serverName string) ([]cftls.ECHConfig, error) {
-	return func(_ context.Context, serverName string) ([]cftls.ECHConfig, error) {
-		message := &mDNS.Msg{
-			MsgHdr: mDNS.MsgHdr{
-				RecursionDesired: true,
-			},
-			Question: []mDNS.Question{
-				{
-					Name:   serverName + ".",
-					Qtype:  mDNS.TypeHTTPS,
-					Qclass: mDNS.ClassINET,
-				},
-			},
-		}
-		response, err := service.FromContext[adapter.DNSRouter](ctx).Exchange(ctx, message, adapter.DNSQueryOptions{})
-		if err != nil {
-			return nil, err
-		}
-		if response.Rcode != mDNS.RcodeSuccess {
-			return nil, dns.RCodeError(response.Rcode)
-		}
-		for _, rr := range response.Answer {
-			switch resource := rr.(type) {
-			case *mDNS.HTTPS:
-				for _, value := range resource.Value {
-					if value.Key().String() == "ech" {
-						echConfig, err := base64.StdEncoding.DecodeString(value.String())
-						if err != nil {
-							return nil, E.Cause(err, "decode ECH config")
-						}
-						return cftls.UnmarshalECHConfigs(echConfig)
-					}
-				}
-			default:
-				return nil, E.New("unknown resource record type: ", resource.Header().Rrtype)
-			}
-		}
-		return nil, E.New("no ECH config found")
-	}
-}

common/tls/ech_keygen.go

@@ -1,5 +1,3 @@
-//go:build with_ech
-
 package tls
 
 import (
@@ -7,14 +5,13 @@ import (
 	"encoding/binary"
 	"encoding/pem"
 
-	cftls "github.com/sagernet/cloudflare-tls"
 	E "github.com/sagernet/sing/common/exceptions"
 
 	"github.com/cloudflare/circl/hpke"
 	"github.com/cloudflare/circl/kem"
 )
 
-func ECHKeygenDefault(serverName string, pqSignatureSchemesEnabled bool) (configPem string, keyPem string, err error) {
+func ECHKeygenDefault(serverName string) (configPem string, keyPem string, err error) {
 	cipherSuites := []echCipherSuite{
 		{
 			kdf:  hpke.KDF_HKDF_SHA256,
@@ -24,13 +21,9 @@ func ECHKeygenDefault(serverName string, pqSignatureSchemesEnabled bool) (config
 			aead: hpke.AEAD_ChaCha20Poly1305,
 		},
 	}
-
 	keyConfig := []myECHKeyConfig{
 		{id: 0, kem: hpke.KEM_X25519_HKDF_SHA256},
 	}
-	if pqSignatureSchemesEnabled {
-		keyConfig = append(keyConfig, myECHKeyConfig{id: 1, kem: hpke.KEM_X25519_KYBER768_DRAFT00})
-	}
 
 	keyPairs, err := echKeygen(0xfe0d, serverName, keyConfig, cipherSuites)
 	if err != nil {
@@ -59,7 +52,6 @@ func ECHKeygenDefault(serverName string, pqSignatureSchemesEnabled bool) (config
 
 type echKeyConfigPair struct {
 	id      uint8
-	key     cftls.EXP_ECHKey
 	rawKey  []byte
 	conf    myECHKeyConfig
 	rawConf []byte
@@ -155,15 +147,6 @@ func echKeygen(version uint16, serverName string, conf []myECHKeyConfig, suite [
 		sk = append(sk, secBuf...)
 		sk = be.AppendUint16(sk, uint16(len(b)))
 		sk = append(sk, b...)
-
-		cfECHKeys, err := cftls.EXP_UnmarshalECHKeys(sk)
-		if err != nil {
-			return nil, E.Cause(err, "bug: can't parse generated ECH server key")
-		}
-		if len(cfECHKeys) != 1 {
-			return nil, E.New("bug: unexpected server key count")
-		}
-		pair.key = cfECHKeys[0]
 		pair.rawKey = sk
 
 		pairs = append(pairs, pair)

common/tls/ech_quic.go

@@ -1,55 +0,0 @@
-//go:build with_quic && with_ech
-
-package tls
-
-import (
-	"context"
-	"net"
-	"net/http"
-
-	"github.com/sagernet/cloudflare-tls"
-	"github.com/sagernet/quic-go/ech"
-	"github.com/sagernet/quic-go/http3_ech"
-	"github.com/sagernet/sing-quic"
-	M "github.com/sagernet/sing/common/metadata"
-)
-
-var (
-	_ qtls.Config       = (*echClientConfig)(nil)
-	_ qtls.ServerConfig = (*echServerConfig)(nil)
-)
-
-func (c *echClientConfig) Dial(ctx context.Context, conn net.PacketConn, addr net.Addr, config *quic.Config) (quic.Connection, error) {
-	return quic.Dial(ctx, conn, addr, c.config, config)
-}
-
-func (c *echClientConfig) DialEarly(ctx context.Context, conn net.PacketConn, addr net.Addr, config *quic.Config) (quic.EarlyConnection, error) {
-	return quic.DialEarly(ctx, conn, addr, c.config, config)
-}
-
-func (c *echClientConfig) CreateTransport(conn net.PacketConn, quicConnPtr *quic.EarlyConnection, serverAddr M.Socksaddr, quicConfig *quic.Config) http.RoundTripper {
-	return &http3.Transport{
-		TLSClientConfig: c.config,
-		QUICConfig:      quicConfig,
-		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
-		},
-	}
-}
-
-func (c *echServerConfig) Listen(conn net.PacketConn, config *quic.Config) (qtls.Listener, error) {
-	return quic.Listen(conn, c.config, config)
-}
-
-func (c *echServerConfig) ListenEarly(conn net.PacketConn, config *quic.Config) (qtls.EarlyListener, error) {
-	return quic.ListenEarly(conn, c.config, config)
-}
-
-func (c *echServerConfig) ConfigureHTTP3() {
-	http3.ConfigureTLSConfig(c.config)
-}

common/tls/ech_server.go

@@ -1,278 +0,0 @@
-//go:build with_ech
-
-package tls
-
-import (
-	"context"
-	"crypto/tls"
-	"encoding/pem"
-	"net"
-	"os"
-	"strings"
-
-	cftls "github.com/sagernet/cloudflare-tls"
-	"github.com/sagernet/fswatch"
-	"github.com/sagernet/sing-box/log"
-	"github.com/sagernet/sing-box/option"
-	E "github.com/sagernet/sing/common/exceptions"
-	"github.com/sagernet/sing/common/ntp"
-)
-
-type echServerConfig struct {
-	config          *cftls.Config
-	logger          log.Logger
-	certificate     []byte
-	key             []byte
-	certificatePath string
-	keyPath         string
-	echKeyPath      string
-	watcher         *fswatch.Watcher
-}
-
-func (c *echServerConfig) ServerName() string {
-	return c.config.ServerName
-}
-
-func (c *echServerConfig) SetServerName(serverName string) {
-	c.config.ServerName = serverName
-}
-
-func (c *echServerConfig) NextProtos() []string {
-	return c.config.NextProtos
-}
-
-func (c *echServerConfig) SetNextProtos(nextProto []string) {
-	c.config.NextProtos = nextProto
-}
-
-func (c *echServerConfig) Config() (*STDConfig, error) {
-	return nil, E.New("unsupported usage for ECH")
-}
-
-func (c *echServerConfig) Client(conn net.Conn) (Conn, error) {
-	return &echConnWrapper{cftls.Client(conn, c.config)}, nil
-}
-
-func (c *echServerConfig) Server(conn net.Conn) (Conn, error) {
-	return &echConnWrapper{cftls.Server(conn, c.config)}, nil
-}
-
-func (c *echServerConfig) Clone() Config {
-	return &echServerConfig{
-		config: c.config.Clone(),
-	}
-}
-
-func (c *echServerConfig) Start() error {
-	err := c.startWatcher()
-	if err != nil {
-		c.logger.Warn("create credentials watcher: ", err)
-	}
-	return nil
-}
-
-func (c *echServerConfig) startWatcher() error {
-	var watchPath []string
-	if c.certificatePath != "" {
-		watchPath = append(watchPath, c.certificatePath)
-	}
-	if c.keyPath != "" {
-		watchPath = append(watchPath, c.keyPath)
-	}
-	if c.echKeyPath != "" {
-		watchPath = append(watchPath, c.echKeyPath)
-	}
-	if len(watchPath) == 0 {
-		return nil
-	}
-	watcher, err := fswatch.NewWatcher(fswatch.Options{
-		Path: watchPath,
-		Callback: func(path string) {
-			err := c.credentialsUpdated(path)
-			if err != nil {
-				c.logger.Error(E.Cause(err, "reload credentials"))
-			}
-		},
-	})
-	if err != nil {
-		return err
-	}
-	err = watcher.Start()
-	if err != nil {
-		return err
-	}
-	c.watcher = watcher
-	return nil
-}
-
-func (c *echServerConfig) credentialsUpdated(path string) error {
-	if path == c.certificatePath || path == c.keyPath {
-		if path == c.certificatePath {
-			certificate, err := os.ReadFile(c.certificatePath)
-			if err != nil {
-				return err
-			}
-			c.certificate = certificate
-		} else {
-			key, err := os.ReadFile(c.keyPath)
-			if err != nil {
-				return err
-			}
-			c.key = key
-		}
-		keyPair, err := cftls.X509KeyPair(c.certificate, c.key)
-		if err != nil {
-			return E.Cause(err, "parse key pair")
-		}
-		c.config.Certificates = []cftls.Certificate{keyPair}
-		c.logger.Info("reloaded TLS certificate")
-	} else {
-		echKeyContent, err := os.ReadFile(c.echKeyPath)
-		if err != nil {
-			return err
-		}
-		block, rest := pem.Decode(echKeyContent)
-		if block == nil || block.Type != "ECH KEYS" || len(rest) > 0 {
-			return E.New("invalid ECH keys pem")
-		}
-		echKeys, err := cftls.EXP_UnmarshalECHKeys(block.Bytes)
-		if err != nil {
-			return E.Cause(err, "parse ECH keys")
-		}
-		echKeySet, err := cftls.EXP_NewECHKeySet(echKeys)
-		if err != nil {
-			return E.Cause(err, "create ECH key set")
-		}
-		c.config.ServerECHProvider = echKeySet
-		c.logger.Info("reloaded ECH keys")
-	}
-	return nil
-}
-
-func (c *echServerConfig) Close() error {
-	var err error
-	if c.watcher != nil {
-		err = E.Append(err, c.watcher.Close(), func(err error) error {
-			return E.Cause(err, "close credentials watcher")
-		})
-	}
-	return err
-}
-
-func NewECHServer(ctx context.Context, logger log.Logger, options option.InboundTLSOptions) (ServerConfig, error) {
-	if !options.Enabled {
-		return nil, nil
-	}
-	var tlsConfig cftls.Config
-	if options.ACME != nil && len(options.ACME.Domain) > 0 {
-		return nil, E.New("acme is unavailable in ech")
-	}
-	tlsConfig.Time = ntp.TimeFuncFromContext(ctx)
-	if options.ServerName != "" {
-		tlsConfig.ServerName = options.ServerName
-	}
-	if len(options.ALPN) > 0 {
-		tlsConfig.NextProtos = append(options.ALPN, tlsConfig.NextProtos...)
-	}
-	if options.MinVersion != "" {
-		minVersion, err := ParseTLSVersion(options.MinVersion)
-		if err != nil {
-			return nil, E.Cause(err, "parse min_version")
-		}
-		tlsConfig.MinVersion = minVersion
-	}
-	if options.MaxVersion != "" {
-		maxVersion, err := ParseTLSVersion(options.MaxVersion)
-		if err != nil {
-			return nil, E.Cause(err, "parse max_version")
-		}
-		tlsConfig.MaxVersion = maxVersion
-	}
-	if options.CipherSuites != nil {
-	find:
-		for _, cipherSuite := range options.CipherSuites {
-			for _, tlsCipherSuite := range tls.CipherSuites() {
-				if cipherSuite == tlsCipherSuite.Name {
-					tlsConfig.CipherSuites = append(tlsConfig.CipherSuites, tlsCipherSuite.ID)
-					continue find
-				}
-			}
-			return nil, E.New("unknown cipher_suite: ", cipherSuite)
-		}
-	}
-	var certificate []byte
-	var key []byte
-	if len(options.Certificate) > 0 {
-		certificate = []byte(strings.Join(options.Certificate, "\n"))
-	} else if options.CertificatePath != "" {
-		content, err := os.ReadFile(options.CertificatePath)
-		if err != nil {
-			return nil, E.Cause(err, "read certificate")
-		}
-		certificate = content
-	}
-	if len(options.Key) > 0 {
-		key = []byte(strings.Join(options.Key, "\n"))
-	} else if options.KeyPath != "" {
-		content, err := os.ReadFile(options.KeyPath)
-		if err != nil {
-			return nil, E.Cause(err, "read key")
-		}
-		key = content
-	}
-
-	if certificate == nil {
-		return nil, E.New("missing certificate")
-	} else if key == nil {
-		return nil, E.New("missing key")
-	}
-
-	keyPair, err := cftls.X509KeyPair(certificate, key)
-	if err != nil {
-		return nil, E.Cause(err, "parse x509 key pair")
-	}
-	tlsConfig.Certificates = []cftls.Certificate{keyPair}
-
-	var echKey []byte
-	if len(options.ECH.Key) > 0 {
-		echKey = []byte(strings.Join(options.ECH.Key, "\n"))
-	} else if options.ECH.KeyPath != "" {
-		content, err := os.ReadFile(options.ECH.KeyPath)
-		if err != nil {
-			return nil, E.Cause(err, "read ECH key")
-		}
-		echKey = content
-	} else {
-		return nil, E.New("missing ECH key")
-	}
-
-	block, rest := pem.Decode(echKey)
-	if block == nil || block.Type != "ECH KEYS" || len(rest) > 0 {
-		return nil, E.New("invalid ECH keys pem")
-	}
-
-	echKeys, err := cftls.EXP_UnmarshalECHKeys(block.Bytes)
-	if err != nil {
-		return nil, E.Cause(err, "parse ECH keys")
-	}
-
-	echKeySet, err := cftls.EXP_NewECHKeySet(echKeys)
-	if err != nil {
-		return nil, E.Cause(err, "create ECH key set")
-	}
-
-	tlsConfig.ECHEnabled = true
-	tlsConfig.PQSignatureSchemesEnabled = options.ECH.PQSignatureSchemesEnabled
-	tlsConfig.DynamicRecordSizingDisabled = options.ECH.DynamicRecordSizingDisabled
-	tlsConfig.ServerECHProvider = echKeySet
-
-	return &echServerConfig{
-		config:          &tlsConfig,
-		logger:          logger,
-		certificate:     certificate,
-		key:             key,
-		certificatePath: options.CertificatePath,
-		keyPath:         options.KeyPath,
-		echKeyPath:      options.ECH.KeyPath,
-	}, nil
-}

common/tls/ech_stub.go

@@ -1,25 +1,23 @@
-//go:build !with_ech
+//go:build !go1.24
 
 package tls
 
 import (
 	"context"
+	"crypto/tls"
 
-	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
 	E "github.com/sagernet/sing/common/exceptions"
 )
 
-var errECHNotIncluded = E.New(`ECH is not included in this build, rebuild with -tags with_ech`)
-
-func NewECHServer(ctx context.Context, logger log.Logger, options option.InboundTLSOptions) (ServerConfig, error) {
-	return nil, errECHNotIncluded
+func parseECHClientConfig(ctx context.Context, options option.OutboundTLSOptions, tlsConfig *tls.Config) (Config, error) {
+	return nil, E.New("ECH requires go1.24, please recompile your binary.")
 }
 
-func NewECHClient(ctx context.Context, serverAddress string, options option.OutboundTLSOptions) (Config, error) {
-	return nil, errECHNotIncluded
+func parseECHServerConfig(ctx context.Context, options option.InboundTLSOptions, tlsConfig *tls.Config, echKeyPath *string) error {
+	return E.New("ECH requires go1.24, please recompile your binary.")
 }
 
-func ECHKeygenDefault(host string, pqSignatureSchemesEnabled bool) (configPem string, keyPem string, err error) {
-	return "", "", errECHNotIncluded
+func reloadECHKeys(echKeyPath string, tlsConfig *tls.Config) error {
+	return E.New("ECH requires go1.24, please recompile your binary.")
 }

common/tls/mkcert.go

@@ -12,6 +12,9 @@ import (
 )
 
 func GenerateKeyPair(parent *x509.Certificate, parentKey any, timeFunc func() time.Time, serverName string) (*tls.Certificate, error) {
+	if timeFunc == nil {
+		timeFunc = time.Now
+	}
 	privateKeyPem, publicKeyPem, err := GenerateCertificate(parent, parentKey, timeFunc, serverName, timeFunc().Add(time.Hour))
 	if err != nil {
 		return nil, err
@@ -24,9 +27,6 @@ func GenerateKeyPair(parent *x509.Certificate, parentKey any, timeFunc func() ti
 }
 
 func GenerateCertificate(parent *x509.Certificate, parentKey any, timeFunc func() time.Time, serverName string, expire time.Time) (privateKeyPem []byte, publicKeyPem []byte, err error) {
-	if timeFunc == nil {
-		timeFunc = time.Now
-	}
 	key, err := rsa.GenerateKey(rand.Reader, 2048)
 	if err != nil {
 		return

common/tls/server.go

@@ -16,13 +16,10 @@ func NewServer(ctx context.Context, logger log.Logger, options option.InboundTLS
 	if !options.Enabled {
 		return nil, nil
 	}
-	if options.ECH != nil && options.ECH.Enabled {
-		return NewECHServer(ctx, logger, options)
-	} else if options.Reality != nil && options.Reality.Enabled {
+	if options.Reality != nil && options.Reality.Enabled {
 		return NewRealityServer(ctx, logger, options)
-	} else {
-		return NewSTDServer(ctx, logger, options)
 	}
+	return NewSTDServer(ctx, logger, options)
 }
 
 func ServerHandshake(ctx context.Context, conn net.Conn, config ServerConfig) (Conn, error) {

common/tls/std_client.go

@@ -127,5 +127,8 @@ func NewSTDClient(ctx context.Context, serverAddress string, options option.Outb
 		}
 		tlsConfig.RootCAs = certPool
 	}
+	if options.ECH != nil && options.ECH.Enabled {
+		return parseECHClientConfig(ctx, options, &tlsConfig)
+	}
 	return &STDClientConfig{&tlsConfig}, nil
 }

common/tls/std_server.go

@@ -26,6 +26,7 @@ type STDServerConfig struct {
 	key             []byte
 	certificatePath string
 	keyPath         string
+	echKeyPath      string
 	watcher         *fswatch.Watcher
 }
 
@@ -94,6 +95,9 @@ func (c *STDServerConfig) startWatcher() error {
 	if c.keyPath != "" {
 		watchPath = append(watchPath, c.keyPath)
 	}
+	if c.echKeyPath != "" {
+		watchPath = append(watchPath, c.echKeyPath)
+	}
 	watcher, err := fswatch.NewWatcher(fswatch.Options{
 		Path: watchPath,
 		Callback: func(path string) {
@@ -115,25 +119,33 @@ func (c *STDServerConfig) startWatcher() error {
 }
 
 func (c *STDServerConfig) certificateUpdated(path string) error {
-	if path == c.certificatePath {
-		certificate, err := os.ReadFile(c.certificatePath)
-		if err != nil {
-			return E.Cause(err, "reload certificate from ", c.certificatePath)
+	if path == c.certificatePath || path == c.keyPath {
+		if path == c.certificatePath {
+			certificate, err := os.ReadFile(c.certificatePath)
+			if err != nil {
+				return E.Cause(err, "reload certificate from ", c.certificatePath)
+			}
+			c.certificate = certificate
+		} else if path == c.keyPath {
+			key, err := os.ReadFile(c.keyPath)
+			if err != nil {
+				return E.Cause(err, "reload key from ", c.keyPath)
+			}
+			c.key = key
 		}
-		c.certificate = certificate
-	} else if path == c.keyPath {
-		key, err := os.ReadFile(c.keyPath)
+		keyPair, err := tls.X509KeyPair(c.certificate, c.key)
 		if err != nil {
-			return E.Cause(err, "reload key from ", c.keyPath)
+			return E.Cause(err, "reload key pair")
 		}
-		c.key = key
+		c.config.Certificates = []tls.Certificate{keyPair}
+		c.logger.Info("reloaded TLS certificate")
+	} else if path == c.echKeyPath {
+		err := reloadECHKeys(c.echKeyPath, c.config)
+		if err != nil {
+			return err
+		}
+		c.logger.Info("reloaded ECH keys")
 	}
-	keyPair, err := tls.X509KeyPair(c.certificate, c.key)
-	if err != nil {
-		return E.Cause(err, "reload key pair")
-	}
-	c.config.Certificates = []tls.Certificate{keyPair}
-	c.logger.Info("reloaded TLS certificate")
 	return nil
 }
 
@@ -238,6 +250,13 @@ func NewSTDServer(ctx context.Context, logger log.Logger, options option.Inbound
 			tlsConfig.Certificates = []tls.Certificate{keyPair}
 		}
 	}
+	var echKeyPath string
+	if options.ECH != nil && options.ECH.Enabled {
+		err = parseECHServerConfig(ctx, options, tlsConfig, &echKeyPath)
+		if err != nil {
+			return nil, err
+		}
+	}
 	return &STDServerConfig{
 		config:          tlsConfig,
 		logger:          logger,
@@ -246,5 +265,6 @@ func NewSTDServer(ctx context.Context, logger log.Logger, options option.Inbound
 		key:             key,
 		certificatePath: options.CertificatePath,
 		keyPath:         options.KeyPath,
+		echKeyPath:      echKeyPath,
 	}, nil
 }

constant/dns.go

@@ -15,19 +15,19 @@ const (
 )
 
 const (
-	DNSTypeLegacy     = "legacy"
-	DNSTypeUDP        = "udp"
-	DNSTypeTCP        = "tcp"
-	DNSTypeTLS        = "tls"
-	DNSTypeHTTPS      = "https"
-	DNSTypeQUIC       = "quic"
-	DNSTypeHTTP3      = "h3"
-	DNSTypeHosts      = "hosts"
-	DNSTypeLocal      = "local"
-	DNSTypePreDefined = "predefined"
-	DNSTypeFakeIP     = "fakeip"
-	DNSTypeDHCP       = "dhcp"
-	DNSTypeTailscale  = "tailscale"
+	DNSTypeLegacy      = "legacy"
+	DNSTypeLegacyRcode = "legacy_rcode"
+	DNSTypeUDP         = "udp"
+	DNSTypeTCP         = "tcp"
+	DNSTypeTLS         = "tls"
+	DNSTypeHTTPS       = "https"
+	DNSTypeQUIC        = "quic"
+	DNSTypeHTTP3       = "h3"
+	DNSTypeLocal       = "local"
+	DNSTypeHosts       = "hosts"
+	DNSTypeFakeIP      = "fakeip"
+	DNSTypeDHCP        = "dhcp"
+	DNSTypeTailscale   = "tailscale"
 )
 
 const (

constant/proxy.go

@@ -19,6 +19,7 @@ const (
 	TypeTor          = "tor"
 	TypeSSH          = "ssh"
 	TypeShadowTLS    = "shadowtls"
+	TypeAnyTLS       = "anytls"
 	TypeShadowsocksR = "shadowsocksr"
 	TypeVLESS        = "vless"
 	TypeTUIC         = "tuic"
@@ -77,6 +78,8 @@ func ProxyDisplayName(proxyType string) string {
 		return "TUIC"
 	case TypeHysteria2:
 		return "Hysteria2"
+	case TypeAnyTLS:
+		return "AnyTLS"
 	case TypeSelector:
 		return "Selector"
 	case TypeURLTest:

constant/rule.go

@@ -33,6 +33,7 @@ const (
 	RuleActionTypeHijackDNS    = "hijack-dns"
 	RuleActionTypeSniff        = "sniff"
 	RuleActionTypeResolve      = "resolve"
+	RuleActionTypePredefined   = "predefined"
 )
 
 const (

dns/client.go

@@ -17,7 +17,7 @@ import (
 	"github.com/sagernet/sing/contrab/freelru"
 	"github.com/sagernet/sing/contrab/maphash"
 
-	"github.com/miekg/dns"
+	dns "github.com/miekg/dns"
 )
 
 var (
@@ -484,7 +484,7 @@ func (c *Client) loadResponse(question dns.Question, transport adapter.DNSTransp
 
 func MessageToAddresses(response *dns.Msg) ([]netip.Addr, error) {
 	if response.Rcode != dns.RcodeSuccess && response.Rcode != dns.RcodeNameError {
-		return nil, RCodeError(response.Rcode)
+		return nil, RcodeError(response.Rcode)
 	}
 	addresses := make([]netip.Addr, 0, len(response.Answer))
 	for _, rawAnswer := range response.Answer {
@@ -508,10 +508,10 @@ func wrapError(err error) error {
 	switch dnsErr := err.(type) {
 	case *net.DNSError:
 		if dnsErr.IsNotFound {
-			return RCodeNameError
+			return RcodeNameError
 		}
 	case *net.AddrError:
-		return RCodeNameError
+		return RcodeNameError
 	}
 	return err
 }
@@ -561,3 +561,73 @@ func FixedResponse(id uint16, question dns.Question, addresses []netip.Addr, tim
 	}
 	return &response
 }
+
+func FixedResponseCNAME(id uint16, question dns.Question, record string, timeToLive uint32) *dns.Msg {
+	response := dns.Msg{
+		MsgHdr: dns.MsgHdr{
+			Id:       id,
+			Rcode:    dns.RcodeSuccess,
+			Response: true,
+		},
+		Question: []dns.Question{question},
+		Answer: []dns.RR{
+			&dns.CNAME{
+				Hdr: dns.RR_Header{
+					Name:   question.Name,
+					Rrtype: dns.TypeCNAME,
+					Class:  dns.ClassINET,
+					Ttl:    timeToLive,
+				},
+				Target: record,
+			},
+		},
+	}
+	return &response
+}
+
+func FixedResponseTXT(id uint16, question dns.Question, records []string, timeToLive uint32) *dns.Msg {
+	response := dns.Msg{
+		MsgHdr: dns.MsgHdr{
+			Id:       id,
+			Rcode:    dns.RcodeSuccess,
+			Response: true,
+		},
+		Question: []dns.Question{question},
+		Answer: []dns.RR{
+			&dns.TXT{
+				Hdr: dns.RR_Header{
+					Name:   question.Name,
+					Rrtype: dns.TypeA,
+					Class:  dns.ClassINET,
+					Ttl:    timeToLive,
+				},
+				Txt: records,
+			},
+		},
+	}
+	return &response
+}
+
+func FixedResponseMX(id uint16, question dns.Question, records []*net.MX, timeToLive uint32) *dns.Msg {
+	response := dns.Msg{
+		MsgHdr: dns.MsgHdr{
+			Id:       id,
+			Rcode:    dns.RcodeSuccess,
+			Response: true,
+		},
+		Question: []dns.Question{question},
+	}
+	for _, record := range records {
+		response.Answer = append(response.Answer, &dns.MX{
+			Hdr: dns.RR_Header{
+				Name:   question.Name,
+				Rrtype: dns.TypeA,
+				Class:  dns.ClassINET,
+				Ttl:    timeToLive,
+			},
+			Preference: record.Pref,
+			Mx:         record.Host,
+		})
+	}
+	return &response
+}

dns/rcode.go

@@ -1,33 +1,17 @@
 package dns
 
-import F "github.com/sagernet/sing/common/format"
-
-const (
-	RCodeSuccess        RCodeError = 0 // NoError
-	RCodeFormatError    RCodeError = 1 // FormErr
-	RCodeServerFailure  RCodeError = 2 // ServFail
-	RCodeNameError      RCodeError = 3 // NXDomain
-	RCodeNotImplemented RCodeError = 4 // NotImp
-	RCodeRefused        RCodeError = 5 // Refused
+import (
+	mDNS "github.com/miekg/dns"
 )
 
-type RCodeError uint16
+const (
+	RcodeFormatError RcodeError = mDNS.RcodeFormatError
+	RcodeNameError   RcodeError = mDNS.RcodeNameError
+	RcodeRefused     RcodeError = mDNS.RcodeRefused
+)
 
-func (e RCodeError) Error() string {
-	switch e {
-	case RCodeSuccess:
-		return "success"
-	case RCodeFormatError:
-		return "format error"
-	case RCodeServerFailure:
-		return "server failure"
-	case RCodeNameError:
-		return "name error"
-	case RCodeNotImplemented:
-		return "not implemented"
-	case RCodeRefused:
-		return "refused"
-	default:
-		return F.ToString("unknown error: ", uint16(e))
-	}
+type RcodeError int
+
+func (e RcodeError) Error() string {
+	return mDNS.RcodeToString[int(e)]
 }

dns/router.go

@@ -190,6 +190,8 @@ func (r *Router) matchDNS(ctx context.Context, allowFakeIP bool, ruleIndex int,
 				}
 			case *R.RuleActionReject:
 				return nil, currentRule, currentRuleIndex
+			case *R.RuleActionPredefined:
+				return nil, currentRule, currentRuleIndex
 			}
 		}
 	}
@@ -260,6 +262,21 @@ func (r *Router) Exchange(ctx context.Context, message *mDNS.Msg, options adapte
 						case C.RuleActionRejectMethodDrop:
 							return nil, tun.ErrDrop
 						}
+					case *R.RuleActionPredefined:
+						return &mDNS.Msg{
+							MsgHdr: mDNS.MsgHdr{
+								Id:                 message.Id,
+								Response:           true,
+								Authoritative:      true,
+								RecursionDesired:   true,
+								RecursionAvailable: true,
+								Rcode:              action.Rcode,
+							},
+							Question: message.Question,
+							Answer:   action.Answer,
+							Ns:       action.Ns,
+							Extra:    action.Extra,
+						}, nil
 					}
 				}
 				var responseCheck func(responseAddrs []netip.Addr) bool
@@ -329,13 +346,13 @@ func (r *Router) Lookup(ctx context.Context, domain string, options adapter.DNSQ
 			}
 		} else if len(responseAddrs) == 0 {
 			r.logger.ErrorContext(ctx, "lookup failed for ", domain, ": empty result")
-			err = RCodeNameError
+			err = RcodeNameError
 		}
 	}
 	responseAddrs, cached = r.client.LookupCache(domain, options.Strategy)
 	if cached {
 		if len(responseAddrs) == 0 {
-			return nil, RCodeNameError
+			return nil, RcodeNameError
 		}
 		return responseAddrs, nil
 	}
@@ -376,6 +393,20 @@ func (r *Router) Lookup(ctx context.Context, domain string, options adapter.DNSQ
 					case C.RuleActionRejectMethodDrop:
 						return nil, tun.ErrDrop
 					}
+				case *R.RuleActionPredefined:
+					if action.Rcode != mDNS.RcodeSuccess {
+						err = RcodeError(action.Rcode)
+					} else {
+						for _, answer := range action.Answer {
+							switch record := answer.(type) {
+							case *mDNS.A:
+								responseAddrs = append(responseAddrs, M.AddrFromIP(record.A))
+							case *mDNS.AAAA:
+								responseAddrs = append(responseAddrs, M.AddrFromIP(record.AAAA))
+							}
+						}
+					}
+					goto response
 				}
 			}
 			var responseCheck func(responseAddrs []netip.Addr) bool
@@ -395,6 +426,7 @@ func (r *Router) Lookup(ctx context.Context, domain string, options adapter.DNSQ
 			printResult()
 		}
 	}
+response:
 	printResult()
 	if len(responseAddrs) > 0 {
 		r.logger.InfoContext(ctx, "lookup succeed for ", domain, ": ", strings.Join(F.MapToString(responseAddrs), " "))

dns/transport/fakeip/fakeip.go

@@ -55,7 +55,7 @@ func (t *Transport) Exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg,
 	if question.Qtype != mDNS.TypeA && question.Qtype != mDNS.TypeAAAA {
 		return nil, E.New("only IP queries are supported by fakeip")
 	}
-	address, err := t.store.Create(question.Name, question.Qtype == mDNS.TypeAAAA)
+	address, err := t.store.Create(dns.FqdnToDomain(question.Name), question.Qtype == mDNS.TypeAAAA)
 	if err != nil {
 		return nil, err
 	}

dns/transport/hosts/hosts.go

@@ -2,12 +2,14 @@ package hosts
 
 import (
 	"context"
+	"os"
 
 	"github.com/sagernet/sing-box/adapter"
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/dns"
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
+	"github.com/sagernet/sing/service/filemanager"
 
 	mDNS "github.com/miekg/dns"
 )
@@ -29,7 +31,7 @@ func NewTransport(ctx context.Context, logger log.ContextLogger, tag string, opt
 		files = append(files, NewFile(DefaultPath))
 	} else {
 		for _, path := range options.Path {
-			files = append(files, NewFile(path))
+			files = append(files, NewFile(filemanager.BasePath(ctx, os.ExpandEnv(path))))
 		}
 	}
 	return &Transport{

dns/transport/local/local.go

@@ -19,14 +19,11 @@ import (
 	mDNS "github.com/miekg/dns"
 )
 
-func RegisterTransport(registry *dns.TransportRegistry) {
-	dns.RegisterTransport[option.LocalDNSServerOptions](registry, C.DNSTypeLocal, NewTransport)
-}
-
 var _ adapter.DNSTransport = (*Transport)(nil)
 
 type Transport struct {
 	dns.TransportAdapter
+	ctx    context.Context
 	hosts  *hosts.File
 	dialer N.Dialer
 }
@@ -142,6 +139,9 @@ func (t *Transport) tryOneName(ctx context.Context, config *dnsConfig, fqdn stri
 }
 
 func (t *Transport) exchangeOne(ctx context.Context, server M.Socksaddr, question mDNS.Question, timeout time.Duration, useTCP, ad bool) (*mDNS.Msg, error) {
+	if server.Port == 0 {
+		server.Port = 53
+	}
 	var networks []string
 	if useTCP {
 		networks = []string{N.NetworkTCP}

dns/transport/local/local_fallback.go

@@ -0,0 +1,205 @@
+package local
+
+import (
+	"context"
+	"errors"
+	"net"
+
+	"github.com/sagernet/sing-box/adapter"
+	C "github.com/sagernet/sing-box/constant"
+	"github.com/sagernet/sing-box/dns"
+	"github.com/sagernet/sing-box/experimental/libbox/platform"
+	"github.com/sagernet/sing-box/log"
+	"github.com/sagernet/sing-box/option"
+	E "github.com/sagernet/sing/common/exceptions"
+	"github.com/sagernet/sing/service"
+
+	mDNS "github.com/miekg/dns"
+)
+
+func RegisterTransport(registry *dns.TransportRegistry) {
+	dns.RegisterTransport[option.LocalDNSServerOptions](registry, C.DNSTypeLocal, NewFallbackTransport)
+}
+
+type FallbackTransport struct {
+	adapter.DNSTransport
+	ctx      context.Context
+	fallback bool
+	resolver net.Resolver
+}
+
+func NewFallbackTransport(ctx context.Context, logger log.ContextLogger, tag string, options option.LocalDNSServerOptions) (adapter.DNSTransport, error) {
+	transport, err := NewTransport(ctx, logger, tag, options)
+	if err != nil {
+		return nil, err
+	}
+	return &FallbackTransport{
+		DNSTransport: transport,
+		ctx:          ctx,
+	}, nil
+}
+
+func (f *FallbackTransport) Start(stage adapter.StartStage) error {
+	if stage != adapter.StartStateStart {
+		return nil
+	}
+	platformInterface := service.FromContext[platform.Interface](f.ctx)
+	if platformInterface == nil {
+		return nil
+	}
+	inboundManager := service.FromContext[adapter.InboundManager](f.ctx)
+	for _, inbound := range inboundManager.Inbounds() {
+		if inbound.Type() == C.TypeTun {
+			// platform tun hijacks DNS, so we can only use cgo resolver here
+			f.fallback = true
+			break
+		}
+	}
+	return nil
+}
+
+func (f *FallbackTransport) Close() error {
+	return nil
+}
+
+func (f *FallbackTransport) Exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg, error) {
+	if !f.fallback {
+		return f.DNSTransport.Exchange(ctx, message)
+	}
+	question := message.Question[0]
+	domain := dns.FqdnToDomain(question.Name)
+	if question.Qtype == mDNS.TypeA || question.Qtype == mDNS.TypeAAAA {
+		var network string
+		if question.Qtype == mDNS.TypeA {
+			network = "ip4"
+		} else {
+			network = "ip6"
+		}
+		addresses, err := f.resolver.LookupNetIP(ctx, network, domain)
+		if err != nil {
+			var dnsError *net.DNSError
+			if errors.As(err, &dnsError) && dnsError.IsNotFound {
+				return nil, dns.RcodeRefused
+			}
+			return nil, err
+		}
+		return dns.FixedResponse(message.Id, question, addresses, C.DefaultDNSTTL), nil
+	} else if question.Qtype == mDNS.TypeNS {
+		records, err := f.resolver.LookupNS(ctx, domain)
+		if err != nil {
+			var dnsError *net.DNSError
+			if errors.As(err, &dnsError) && dnsError.IsNotFound {
+				return nil, dns.RcodeRefused
+			}
+			return nil, err
+		}
+		response := &mDNS.Msg{
+			MsgHdr: mDNS.MsgHdr{
+				Id:       message.Id,
+				Rcode:    mDNS.RcodeSuccess,
+				Response: true,
+			},
+			Question: []mDNS.Question{question},
+		}
+		for _, record := range records {
+			response.Answer = append(response.Answer, &mDNS.NS{
+				Hdr: mDNS.RR_Header{
+					Name:   question.Name,
+					Rrtype: mDNS.TypeNS,
+					Class:  mDNS.ClassINET,
+					Ttl:    C.DefaultDNSTTL,
+				},
+				Ns: record.Host,
+			})
+		}
+		return response, nil
+	} else if question.Qtype == mDNS.TypeCNAME {
+		cname, err := f.resolver.LookupCNAME(ctx, domain)
+		if err != nil {
+			var dnsError *net.DNSError
+			if errors.As(err, &dnsError) && dnsError.IsNotFound {
+				return nil, dns.RcodeRefused
+			}
+			return nil, err
+		}
+		return &mDNS.Msg{
+			MsgHdr: mDNS.MsgHdr{
+				Id:       message.Id,
+				Rcode:    mDNS.RcodeSuccess,
+				Response: true,
+			},
+			Question: []mDNS.Question{question},
+			Answer: []mDNS.RR{
+				&mDNS.CNAME{
+					Hdr: mDNS.RR_Header{
+						Name:   question.Name,
+						Rrtype: mDNS.TypeCNAME,
+						Class:  mDNS.ClassINET,
+						Ttl:    C.DefaultDNSTTL,
+					},
+					Target: cname,
+				},
+			},
+		}, nil
+	} else if question.Qtype == mDNS.TypeTXT {
+		records, err := f.resolver.LookupTXT(ctx, domain)
+		if err != nil {
+			var dnsError *net.DNSError
+			if errors.As(err, &dnsError) && dnsError.IsNotFound {
+				return nil, dns.RcodeRefused
+			}
+			return nil, err
+		}
+		return &mDNS.Msg{
+			MsgHdr: mDNS.MsgHdr{
+				Id:       message.Id,
+				Rcode:    mDNS.RcodeSuccess,
+				Response: true,
+			},
+			Question: []mDNS.Question{question},
+			Answer: []mDNS.RR{
+				&mDNS.TXT{
+					Hdr: mDNS.RR_Header{
+						Name:   question.Name,
+						Rrtype: mDNS.TypeCNAME,
+						Class:  mDNS.ClassINET,
+						Ttl:    C.DefaultDNSTTL,
+					},
+					Txt: records,
+				},
+			},
+		}, nil
+	} else if question.Qtype == mDNS.TypeMX {
+		records, err := f.resolver.LookupMX(ctx, domain)
+		if err != nil {
+			var dnsError *net.DNSError
+			if errors.As(err, &dnsError) && dnsError.IsNotFound {
+				return nil, dns.RcodeRefused
+			}
+			return nil, err
+		}
+		response := &mDNS.Msg{
+			MsgHdr: mDNS.MsgHdr{
+				Id:       message.Id,
+				Rcode:    mDNS.RcodeSuccess,
+				Response: true,
+			},
+			Question: []mDNS.Question{question},
+		}
+		for _, record := range records {
+			response.Answer = append(response.Answer, &mDNS.MX{
+				Hdr: mDNS.RR_Header{
+					Name:   question.Name,
+					Rrtype: mDNS.TypeA,
+					Class:  mDNS.ClassINET,
+					Ttl:    C.DefaultDNSTTL,
+				},
+				Preference: record.Pref,
+				Mx:         record.Host,
+			})
+		}
+		return response, nil
+	} else {
+		return nil, E.New("only A, AAAA, NS, CNAME, TXT, MX queries are supported on current platform when using TUN, please switch to a fixed DNS server.")
+	}
+}

dns/transport/local/resolv_darwin_cgo.go

@@ -0,0 +1,53 @@
+//go:build darwin && cgo
+
+package local
+
+/*
+#include <stdlib.h>
+#include <stdio.h>
+#include <resolv.h>
+#include <arpa/inet.h>
+*/
+import "C"
+
+import (
+	"time"
+
+	E "github.com/sagernet/sing/common/exceptions"
+
+	"github.com/miekg/dns"
+)
+
+func dnsReadConfig(_ string) *dnsConfig {
+	if C.res_init() != 0 {
+		return &dnsConfig{
+			servers:  defaultNS,
+			search:   dnsDefaultSearch(),
+			ndots:    1,
+			timeout:  5 * time.Second,
+			attempts: 2,
+			err:      E.New("libresolv initialization failed"),
+		}
+	}
+	conf := &dnsConfig{
+		ndots:    1,
+		timeout:  5 * time.Second,
+		attempts: int(C._res.retry),
+	}
+	for i := 0; i < int(C._res.nscount); i++ {
+		ns := C._res.nsaddr_list[i]
+		addr := C.inet_ntoa(ns.sin_addr)
+		if addr == nil {
+			continue
+		}
+		conf.servers = append(conf.servers, C.GoString(addr))
+	}
+	for i := 0; ; i++ {
+		search := C._res.dnsrch[i]
+		if search == nil {
+			break
+		}
+		conf.search = append(conf.search, dns.Fqdn(C.GoString(search)))
+	}
+	return conf
+}

dns/transport/local/resolv_default.go

@@ -0,0 +1,23 @@
+package local
+
+import (
+	"os"
+	"strings"
+	_ "unsafe"
+
+	"github.com/miekg/dns"
+)
+
+//go:linkname defaultNS net.defaultNS
+var defaultNS []string
+
+func dnsDefaultSearch() []string {
+	hn, err := os.Hostname()
+	if err != nil {
+		return nil
+	}
+	if i := strings.IndexRune(hn, '.'); i >= 0 && i < len(hn)-1 {
+		return []string{dns.Fqdn(hn[i+1:])}
+	}
+	return nil
+}

dns/transport/local/resolv_unix.go

@@ -1,4 +1,4 @@
-//go:build !windows
+//go:build !windows && !(darwin && cgo)
 
 package local
 
@@ -9,7 +9,8 @@ import (
 	"os"
 	"strings"
 	"time"
-	_ "unsafe"
+
+	"github.com/miekg/dns"
 )
 
 func dnsReadConfig(name string) *dnsConfig {
@@ -69,13 +70,13 @@ func dnsReadConfig(name string) *dnsConfig {
 			}
 		case "domain":
 			if len(f) > 1 {
-				conf.search = []string{ensureRooted(f[1])}
+				conf.search = []string{dns.Fqdn(f[1])}
 			}
 
 		case "search":
 			conf.search = make([]string, 0, len(f)-1)
 			for i := 1; i < len(f); i++ {
-				name := ensureRooted(f[i])
+				name := dns.Fqdn(f[i])
 				if name == "." {
 					continue
 				}
@@ -137,27 +138,6 @@ func dnsReadConfig(name string) *dnsConfig {
 	return conf
 }
 
-//go:linkname defaultNS net.defaultNS
-var defaultNS []string
-
-func dnsDefaultSearch() []string {
-	hn, err := os.Hostname()
-	if err != nil {
-		return nil
-	}
-	if i := strings.IndexRune(hn, '.'); i >= 0 && i < len(hn)-1 {
-		return []string{ensureRooted(hn[i+1:])}
-	}
-	return nil
-}
-
-func ensureRooted(s string) string {
-	if len(s) > 0 && s[len(s)-1] == '.' {
-		return s
-	}
-	return s + "."
-}
-
 const big = 0xFFFFFF
 
 func dtoi(s string) (n int, i int, ok bool) {

dns/transport/local/resolv_windows.go

@@ -69,9 +69,6 @@ func dnsReadConfig(_ string) *dnsConfig {
 	return conf
 }
 
-//go:linkname defaultNS net.defaultNS
-var defaultNS []string
-
 func adapterAddresses() ([]*windows.IpAdapterAddresses, error) {
 	var b []byte
 	l := uint32(15000) // recommended initial size

dns/transport/predefined.go

@@ -1,82 +0,0 @@
-package transport
-
-import (
-	"context"
-
-	"github.com/sagernet/sing-box/adapter"
-	C "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing-box/dns"
-	"github.com/sagernet/sing-box/log"
-	"github.com/sagernet/sing-box/option"
-	"github.com/sagernet/sing/common"
-	E "github.com/sagernet/sing/common/exceptions"
-
-	mDNS "github.com/miekg/dns"
-)
-
-var _ adapter.DNSTransport = (*PredefinedTransport)(nil)
-
-func RegisterPredefined(registry *dns.TransportRegistry) {
-	dns.RegisterTransport[option.PredefinedDNSServerOptions](registry, C.DNSTypePreDefined, NewPredefined)
-}
-
-type PredefinedTransport struct {
-	dns.TransportAdapter
-	responses []*predefinedResponse
-}
-
-type predefinedResponse struct {
-	questions []mDNS.Question
-	answer    *mDNS.Msg
-}
-
-func NewPredefined(ctx context.Context, logger log.ContextLogger, tag string, options option.PredefinedDNSServerOptions) (adapter.DNSTransport, error) {
-	var responses []*predefinedResponse
-	for _, response := range options.Responses {
-		questions, msg, err := response.Build()
-		if err != nil {
-			return nil, err
-		}
-		responses = append(responses, &predefinedResponse{
-			questions: questions,
-			answer:    msg,
-		})
-	}
-	if len(responses) == 0 {
-		return nil, E.New("empty predefined responses")
-	}
-	return &PredefinedTransport{
-		TransportAdapter: dns.NewTransportAdapter(C.DNSTypePreDefined, tag, nil),
-		responses:        responses,
-	}, nil
-}
-
-func (t *PredefinedTransport) Reset() {
-}
-
-func (t *PredefinedTransport) Exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg, error) {
-	for _, response := range t.responses {
-		for _, question := range response.questions {
-			if func() bool {
-				if question.Name == "" && question.Qtype == mDNS.TypeNone {
-					return true
-				} else if question.Name == "" {
-					return common.Any(message.Question, func(it mDNS.Question) bool {
-						return it.Qtype == question.Qtype
-					})
-				} else if question.Qtype == mDNS.TypeNone {
-					return common.Any(message.Question, func(it mDNS.Question) bool {
-						return it.Name == question.Name
-					})
-				} else {
-					return common.Contains(message.Question, question)
-				}
-			}() {
-				copyAnswer := *response.answer
-				copyAnswer.Id = message.Id
-				return &copyAnswer, nil
-			}
-		}
-	}
-	return nil, dns.RCodeNameError
-}

dns/transport/quic/http3.go

@@ -72,7 +72,7 @@ func NewHTTP3(ctx context.Context, logger log.ContextLogger, tag string, options
 		}
 	}
 	destinationURL := url.URL{
-		Scheme: "HTTP3",
+		Scheme: "https",
 		Host:   host,
 	}
 	if destinationURL.Host == "" {

dns/transport_manager.go

@@ -56,12 +56,12 @@ func (m *TransportManager) Start(stage adapter.StartStage) error {
 	}
 	m.started = true
 	m.stage = stage
-	outbounds := m.transports
+	transports := m.transports
 	m.access.Unlock()
 	if stage == adapter.StartStateStart {
 		return m.startTransports(m.transports)
 	} else {
-		for _, outbound := range outbounds {
+		for _, outbound := range transports {
 			err := adapter.LegacyStart(outbound, stage)
 			if err != nil {
 				return E.Cause(err, stage, " dns/", outbound.Type(), "[", outbound.Tag(), "]")

docs/changelog.md

@@ -2,10 +2,46 @@
 icon: material/alert-decagram
 ---
 
-#### 1.12.0-alpha.8
+#### 1.12.0-alpha.13
+
+* Move `predefined` DNS server to DNS rule action **1**
+* Fixes and improvements
+
+**1**:
+
+See [DNS Rule Action](/configuration/dns/rule_action/#predefined).
+
+### 1.11.4
 
 * Fixes and improvements
 
+#### 1.12.0-alpha.11
+
+* Fixes and improvements
+
+#### 1.12.0-alpha.10
+
+* Add AnyTLS protocol **1**
+* Improve `resolve` route action **2**
+* Migrate to stdlib ECH implementation **3**
+* Fixes and improvements
+
+**1**:
+
+The new AnyTLS protocol claims to mitigate TLS proxy traffic characteristics and comes with a new multiplexing scheme.
+
+See [AnyTLS Inbound](/configuration/inbound/anytls/) and [AnyTLS Outbound](/configuration/outbound/anytls/).
+
+**2**:
+
+`resolve` route action now accepts `disable_cache` and other options like in DNS route actions, see [Route Action](/configuration/route/rule_action).
+
+**3**:
+
+See [TLS](/configuration/shared/tls).
+
+The build tag `with_ech` is no longer needed and has been removed.
+
 #### 1.12.0-alpha.7
 
 * Add Tailscale DNS server **1**

docs/configuration/dns/rule_action.md

@@ -4,7 +4,8 @@ icon: material/new-box
 
 !!! quote "Changes in sing-box 1.12.0"
 
-    :material-plus: [strategy](#strategy)
+    :material-plus: [strategy](#strategy)  
+    :material-plus: [predefined](#predefined)
 
 !!! question "Since sing-box 1.11.0"
 
@@ -16,7 +17,7 @@ icon: material/new-box
   "server": "",
   "strategy": "",
   "disable_cache": false,
-  "rewrite_ttl": 0,
+  "rewrite_ttl": null,
   "client_subnet": null
 }
 ```
@@ -31,6 +32,8 @@ Tag of target server.
 
 #### strategy
 
+!!! question "Since sing-box 1.12.0"
+
 Set domain strategy for this query.
 
 One of `prefer_ipv4` `prefer_ipv6` `ipv4_only` `ipv6_only`.
@@ -49,7 +52,7 @@ Append a `edns0-subnet` OPT extra record with the specified IP prefix to every q
 
 If value is an IP address instead of prefix, `/32` or `/128` will be appended automatically.
 
-Will overrides `dns.client_subnet` and `servers.[].client_subnet`.
+Will overrides `dns.client_subnet`.
 
 ### route-options
 
@@ -69,7 +72,7 @@ Will overrides `dns.client_subnet` and `servers.[].client_subnet`.
 ```json
 {
   "action": "reject",
-  "method": "default", // default
+  "method": "",
   "no_drop": false
 }
 ```
@@ -81,8 +84,61 @@ Will overrides `dns.client_subnet` and `servers.[].client_subnet`.
 - `default`: Reply with NXDOMAIN.
 - `drop`: Drop the request.
 
+`default` will be used by default.
+
 #### no_drop
 
 If not enabled, `method` will be temporarily overwritten to `drop` after 50 triggers in 30s.
 
 Not available when `method` is set to drop.
+
+### predefined
+
+!!! question "Since sing-box 1.12.0"
+
+```json
+{
+  "action": "predefined",
+  "rcode": "",
+  "answer": [],
+  "ns": [],
+  "extra": []
+}
+```
+
+`predefined` responds with predefined DNS records.
+
+#### rcode
+
+The response code.
+
+| Value      | Value in the legacy rcode server | Description     |
+|------------|----------------------------------|-----------------|
+| `NOERROR`  | `success`                        | Ok              |
+| `FORMERR`  | `format_error`                   | Bad request     |
+| `SERVFAIL` | `server_failure`                 | Server failure  |
+| `NXDOMAIN` | `name_error`                     | Not found       |
+| `NOTIMP`   | `not_implemented`                | Not implemented |
+| `REFUSED`  | `refused`                        | Refused         |
+
+`NOERROR` will be used by default.
+
+#### answer
+
+List of text DNS record to respond as answers.
+
+Examples:
+
+| Record Type | Example                       |
+|-------------|-------------------------------|
+| `A`         | `localhost. IN A 127.0.0.1`   |
+| `AAAA`      | `localhost. IN AAAA ::1`      |
+| `TXT`       | `localhost. IN TXT \"Hello\"` |
+
+#### ns
+
+List of text DNS record to respond as name servers.
+
+#### extra
+
+List of text DNS record to respond as extra records.

docs/configuration/dns/rule_action.zh.md

@@ -4,7 +4,8 @@ icon: material/new-box
 
 !!! quote "sing-box 1.12.0 中的更改"
 
-    :material-plus: [strategy](#strategy)
+    :material-plus: [strategy](#strategy)  
+    :material-plus: [predefined](#predefined)
 
 !!! question "自 sing-box 1.11.0 起"
 
@@ -12,12 +13,12 @@ icon: material/new-box
 
 ```json
 {
-  "action": "route",  // 默认
+  "action": "route",
+  // 默认
   "server": "",
-
   "strategy": "",
   "disable_cache": false,
-  "rewrite_ttl": 0,
+  "rewrite_ttl": null,
   "client_subnet": null
 }
 ```
@@ -32,6 +33,8 @@ icon: material/new-box
 
 #### strategy
 
+!!! question "自 sing-box 1.12.0 起"
+
 为此查询设置域名策略。
 
 可选项：`prefer_ipv4` `prefer_ipv6` `ipv4_only` `ipv6_only`。
@@ -50,7 +53,7 @@ icon: material/new-box
 
 如果值是 IP 地址而不是前缀，则会自动附加 `/32` 或 `/128`。
 
-将覆盖 `dns.client_subnet` 与 `servers.[].client_subnet`。
+将覆盖 `dns.client_subnet`.
 
 ### route-options
 
@@ -70,7 +73,7 @@ icon: material/new-box
 ```json
 {
   "action": "reject",
-  "method": "default", // default
+  "method": "",
   "no_drop": false
 }
 ```
@@ -82,8 +85,61 @@ icon: material/new-box
 - `default`: 返回 NXDOMAIN。
 - `drop`: 丢弃请求。
 
+默认使用 `defualt`。
+
 #### no_drop
 
 如果未启用，则 30 秒内触发 50 次后，`method` 将被暂时覆盖为 `drop`。
 
 当 `method` 设为 `drop` 时不可用。
+
+### predefined
+
+!!! question "自 sing-box 1.12.0 起"
+
+```json
+{
+  "action": "predefined",
+  "rcode": "",
+  "answer": [],
+  "ns": [],
+  "extra": []
+}
+```
+
+`predefined` 以预定义的 DNS 记录响应。
+
+#### rcode
+
+响应码。
+
+| 值          | 旧 rcode DNS 服务器中的值 | 描述              |
+|------------|--------------------|-----------------|
+| `NOERROR`  | `success`          | Ok              |
+| `FORMERR`  | `format_error`     | Bad request     |
+| `SERVFAIL` | `server_failure`   | Server failure  |
+| `NXDOMAIN` | `name_error`       | Not found       |
+| `NOTIMP`   | `not_implemented`  | Not implemented |
+| `REFUSED`  | `refused`          | Refused         |
+
+默认使用 `NOERROR`。
+
+#### answer
+
+用于作为回答响应的文本 DNS 记录列表。
+
+例子:
+
+| 记录类型   | 例子                            |
+|--------|-------------------------------|
+| `A`    | `localhost. IN A 127.0.0.1`   |
+| `AAAA` | `localhost. IN AAAA ::1`      |
+| `TXT`  | `localhost. IN TXT \"Hello\"` |
+
+#### ns
+
+用于作为名称服务器响应的文本 DNS 记录列表。
+
+#### extra
+
+用于作为额外记录响应的文本 DNS 记录列表。

docs/configuration/dns/server/hosts.md

@@ -0,0 +1,96 @@
+---
+icon: material/new-box
+---
+
+!!! question "Since sing-box 1.12.0"
+
+# Hosts
+
+### Structure
+
+```json
+{
+  "dns": {
+    "servers": [
+      {
+        "type": "hosts",
+        "tag": "",
+
+        "path": [],
+        "predefined": {}
+      }
+    ]
+  }
+}
+```
+
+!!! note ""
+
+    You can ignore the JSON Array [] tag when the content is only one item
+
+### Fields
+
+#### path
+
+List of paths to hosts files.
+
+`/etc/hosts` is used by default.
+
+`C:\Windows\System32\Drivers\etc\hosts` is used by default on Windows.
+
+Example:
+
+```json
+{
+  // "path": "/etc/hosts"
+  
+  "path": [
+    "/etc/hosts",
+    "$HOME/.hosts"
+  ]
+}
+```
+
+#### predefined
+
+Predefined hosts.
+
+Example:
+
+```json
+{
+  "predefined": {
+    "www.google.com": "127.0.0.1",
+    "localhost": [
+      "127.0.0.1",
+      "::1"
+    ]
+  }
+}
+```
+
+### Examples
+
+=== "Use hosts if available"
+
+    ```json
+    {
+      "dns": {
+        "servers": [
+          {
+            ...
+          },
+          {
+            "type": "hosts",
+            "tag": "hosts"
+          }
+        ],
+        "rules": [
+          {
+            "ip_accept_any": true,
+            "server": "hosts"
+          }
+        ]
+      }
+    }
+    ```

docs/configuration/dns/server/http3.md

@@ -50,7 +50,7 @@ If domain name is used, `domain_resolver` must also be set to resolve IP address
 
 The port of the DNS server.
 
-`853` will be used by default.
+`443` will be used by default.
 
 #### path
 

docs/configuration/dns/server/https.md

@@ -50,7 +50,7 @@ If domain name is used, `domain_resolver` must also be set to resolve IP address
 
 The port of the DNS server.
 
-`853` will be used by default.
+`443` will be used by default.
 
 #### path
 

docs/configuration/dns/server/index.md

@@ -27,19 +27,19 @@ icon: material/alert-decagram
 
 The type of the DNS server.
 
-| Type            | Format                                              |
-|-----------------|-----------------------------------------------------|
-| empty (default) | [Legacy](/configuration/dns/server/legacy/)         |
-| `tcp`           | [TCP](/configuration/dns/server/tcp/)               |
-| `udp`           | [UDP](/configuration/dns/server/udp/)               |
-| `tls`           | [TLS](/configuration/dns/server/tls/)               |
-| `https`         | [HTTPS](/configuration/dns/server/https/)           |
-| `quic`          | [QUIC](/configuration/dns/server/quic/)             |
-| `h3`            | [HTTP/3](/configuration/dns/server/http3/)          |
-| `predefined`    | [Predefined](/configuration/dns/server/predefined/) |
-| `dhcp`          | [DHCP](/configuration/dns/server/dhcp/)             |
-| `fakeip`        | [Fake IP](/configuration/dns/server/fakeip/)        |
-
+| Type            | Format                      |
+|-----------------|-----------------------------|
+| empty (default) | [Legacy](./legacy/)         |
+| `tcp`           | [TCP](./tcp/)               |
+| `udp`           | [UDP](./udp/)               |
+| `tls`           | [TLS](./tls/)               |
+| `https`         | [HTTPS](./https/)           |
+| `quic`          | [QUIC](./quic/)             |
+| `h3`            | [HTTP/3](./http3/)          |
+| `predefined`    | [Predefined](./predefined/) |
+| `dhcp`          | [DHCP](./dhcp/)             |
+| `fakeip`        | [Fake IP](./fakeip/)        |
+| `tailscale`     | [Tailscale](./tailscale/)   |
 
 #### tag
 

docs/configuration/dns/server/index.zh.md

@@ -0,0 +1,46 @@
+---
+icon: material/alert-decagram
+---
+
+!!! quote "sing-box 1.12.0 中的更改"
+
+    :material-plus: [type](#type)
+
+# DNS Server
+
+### 结构
+
+```json
+{
+  "dns": {
+    "servers": [
+      {
+        "type": "",
+        "tag": ""
+      }
+    ]
+  }
+}
+```
+
+#### type
+
+DNS 服务器的类型。
+
+| 类型              | 格式                          |
+|-----------------|-----------------------------|
+| empty (default) | [Legacy](./legacy/)         |
+| `tcp`           | [TCP](./tcp/)               |
+| `udp`           | [UDP](./udp/)               |
+| `tls`           | [TLS](./tls/)               |
+| `https`         | [HTTPS](./https/)           |
+| `quic`          | [QUIC](./quic/)             |
+| `h3`            | [HTTP/3](./http3/)          |
+| `predefined`    | [Predefined](./predefined/) |
+| `dhcp`          | [DHCP](./dhcp/)             |
+| `fakeip`        | [Fake IP](./fakeip/)        |
+| `tailscale`     | [Tailscale](./tailscale/)   |
+
+#### tag
+
+DNS 服务器的标签。

docs/configuration/dns/server/predefined.md

@@ -1,93 +0,0 @@
----
-icon: material/new-box
----
-
-!!! question "Since sing-box 1.12.0"
-
-# Predefined
-
-### Structure
-
-```json
-{
-  "dns": {
-    "servers": [
-      {
-        "type": "predefined",
-        "tag": "",
-        "responses": []
-      }
-    ]
-  }
-}
-```
-
-### Fields
-
-#### responses
-
-==Required==
-
-List of [Response](#response-structure).
-
-### Response Structure
-
-```json
-{
-  "query": [],
-  "query_type": [],
-  "rcode": "",
-  "answer": [],
-  "ns": [],
-  "extra": []
-}
-```
-
-!!! note ""
-
-    You can ignore the JSON Array [] tag when the content is only one item
-
-### Response Fields
-
-#### query
-
-List of domain name to match.
-
-#### query_type
-
-List of query type to match.
-
-#### rcode
-
-The response code.
-
-| Value      | Value in the legacy rcode server | Description     |
-|------------|----------------------------------|-----------------|
-| `NOERROR`  | `success`                        | Ok              |
-| `FORMERR`  | `format_error`                   | Bad request     |
-| `SERVFAIL` | `server_failure`                 | Server failure  |
-| `NXDOMAIN` | `name_error`                     | Not found       |
-| `NOTIMP`   | `not_implemented`                | Not implemented |
-| `REFUSED`  | `refused`                        | Refused         |
-
-`NOERROR` will be used by default.
-
-#### answer
-
-List of text DNS record to respond as answers.
-
-Examples:
-
-| Record Type | Example                       |
-|-------------|-------------------------------|
-| `A`         | `localhost. IN A 127.0.0.1`   |
-| `AAAA`      | `localhost. IN AAAA ::1`      |
-| `TXT`       | `localhost. IN TXT \"Hello\"` |
-
-#### ns
-
-List of text DNS record to respond as name servers.
-
-#### extra
-
-List of text DNS record to respond as extra records.

docs/configuration/dns/server/udp.md

@@ -4,7 +4,7 @@ icon: material/new-box
 
 !!! question "Since sing-box 1.12.0"
 
-# TCP
+# UDP
 
 ### Structure
 

docs/configuration/endpoint/index.md

@@ -26,6 +26,7 @@ Endpoint is protocols that has both inbound and outbound behavior.
 | Type        | Format                    |
 |-------------|---------------------------|
 | `wireguard` | [WireGuard](./wireguard/) |
+| `tailscale` | [Tailscale](./tailscale/) |
 
 #### tag
 

docs/configuration/endpoint/index.zh.md

@@ -23,9 +23,10 @@ icon: material/new-box
 
 ### 字段
 
-| 类型          | 格式                        | 
+| 类型          | 格式                        |
 |-------------|---------------------------|
-| `wireguard` | [WireGuard](./wiregaurd/) | 
+| `wireguard` | [WireGuard](./wiregaurd/) |
+| `tailscale` | [Tailscale](./tailscale/) |
 
 #### tag
 

docs/configuration/endpoint/wireguard.zh.md

@@ -41,7 +41,7 @@ icon: material/new-box
 
 ### 字段
 
-#### system_interface
+#### system
 
 使用系统设备。
 

docs/configuration/inbound/anytls.md

@@ -0,0 +1,59 @@
+---
+icon: material/new-box
+---
+
+!!! question "Since sing-box 1.12.0"
+
+### Structure
+
+```json
+{
+  "type": "anytls",
+  "tag": "anytls-in",
+
+  ... // Listen Fields
+
+  "users": [
+    {
+      "name": "sekai",
+      "password": "8JCsPssfgS8tiRwiMlhARg=="
+    }
+  ],
+  "padding_scheme": [],
+  "tls": {}
+}
+```
+
+### Listen Fields
+
+See [Listen Fields](/configuration/shared/listen/) for details.
+
+### Fields
+
+#### users
+
+==Required==
+
+AnyTLS users.
+
+#### padding_scheme
+
+AnyTLS padding scheme line array.
+
+Default padding scheme:
+
+```
+stop=8
+0=34-120
+1=100-400
+2=400-500,c,500-1000,c,400-500,c,500-1000,c,500-1000,c,400-500
+3=500-1000
+4=500-1000
+5=500-1000
+6=500-1000
+7=500-1000
+```
+
+#### tls
+
+TLS configuration, see [TLS](/configuration/shared/tls/#inbound).

docs/configuration/inbound/anytls.zh.md

@@ -0,0 +1,59 @@
+---
+icon: material/new-box
+---
+
+!!! question "自 sing-box 1.12.0 起"
+
+### 结构
+
+```json
+{
+  "type": "anytls",
+  "tag": "anytls-in",
+
+  ... // 监听字段
+
+  "users": [
+    {
+      "name": "sekai",
+      "password": "8JCsPssfgS8tiRwiMlhARg=="
+    }
+  ],
+  "padding_scheme": [],
+  "tls": {}
+}
+```
+
+### 监听字段
+
+参阅 [监听字段](/zh/configuration/shared/listen/)。
+
+### 字段
+
+#### users
+
+==必填==
+
+AnyTLS 用户。
+
+#### padding_scheme
+
+AnyTLS 填充方案行数组。
+
+默认填充方案:
+
+```
+stop=8
+0=34-120
+1=100-400
+2=400-500,c,500-1000,c,400-500,c,500-1000,c,500-1000,c,400-500
+3=500-1000
+4=500-1000
+5=500-1000
+6=500-1000
+7=500-1000
+```
+
+#### tls
+
+TLS 配置, 参阅 [TLS](/zh/configuration/shared/tls/#inbound)。

docs/configuration/inbound/index.md

@@ -30,6 +30,7 @@
 | `tuic`        | [TUIC](./tuic/)               | :material-close: |
 | `hysteria2`   | [Hysteria2](./hysteria2/)     | :material-close: |
 | `vless`       | [VLESS](./vless/)             | TCP              |
+| `anytls`      | [AnyTLS](./anytls/)           | TCP              |
 | `tun`         | [Tun](./tun/)                 | :material-close: |
 | `redirect`    | [Redirect](./redirect/)       | :material-close: |
 | `tproxy`      | [TProxy](./tproxy/)           | :material-close: |

docs/configuration/inbound/index.zh.md

@@ -30,6 +30,7 @@
 | `tuic`        | [TUIC](./tuic/)               | :material-close: |
 | `hysteria2`   | [Hysteria2](./hysteria2/)     | :material-close: |
 | `vless`       | [VLESS](./vless/)             | TCP              |
+| `anytls`      | [AnyTLS](./anytls/)           | TCP              |
 | `tun`         | [Tun](./tun/)                 | :material-close: |
 | `redirect`    | [Redirect](./redirect/)       | :material-close: |
 | `tproxy`      | [TProxy](./tproxy/)           | :material-close: |

docs/configuration/index.md

@@ -9,6 +9,7 @@ sing-box uses JSON for configuration files.
   "log": {},
   "dns": {},
   "ntp": {},
+  "certificate": {},
   "endpoints": [],
   "inbounds": [],
   "outbounds": [],
@@ -24,6 +25,7 @@ sing-box uses JSON for configuration files.
 | `log`          | [Log](./log/)                   |
 | `dns`          | [DNS](./dns/)                   |
 | `ntp`          | [NTP](./ntp/)                   |
+| `certificate`  | [Certificate](./certificate/)   |
 | `endpoints`    | [Endpoint](./endpoint/)         |
 | `inbounds`     | [Inbound](./inbound/)           |
 | `outbounds`    | [Outbound](./outbound/)         |

docs/configuration/index.zh.md

@@ -9,6 +9,7 @@ sing-box 使用 JSON 作为配置文件格式。
   "log": {},
   "dns": {},
   "ntp": {},
+  "certificate": {},
   "endpoints": [],
   "inbounds": [],
   "outbounds": [],
@@ -24,6 +25,7 @@ sing-box 使用 JSON 作为配置文件格式。
 | `log`          | [日志](./log/)           |
 | `dns`          | [DNS](./dns/)          |
 | `ntp`          | [NTP](./ntp/)          |
+| `certificate`  | [证书](./certificate/)   |
 | `endpoints`    | [端点](./endpoint/)      |
 | `inbounds`     | [入站](./inbound/)       |
 | `outbounds`    | [出站](./outbound/)      |

docs/configuration/outbound/anytls.md

@@ -0,0 +1,66 @@
+---
+icon: material/new-box
+---
+
+!!! question "Since sing-box 1.12.0"
+
+### Structure
+
+```json
+{
+  "type": "anytls",
+  "tag": "anytls-out",
+
+  "server": "127.0.0.1",
+  "server_port": 1080,
+  "password": "8JCsPssfgS8tiRwiMlhARg==",
+  "idle_session_check_interval": "30s",
+  "idle_session_timeout": "30s",
+  "min_idle_session": 5,
+  "tls": {},
+
+  ... // Dial Fields
+}
+```
+
+### Fields
+
+#### server
+
+==Required==
+
+The server address.
+
+#### server_port
+
+==Required==
+
+The server port.
+
+#### password
+
+==Required==
+
+The AnyTLS password.
+
+#### idle_session_check_interval
+
+Interval checking for idle sessions. Default: 30s.
+
+#### idle_session_timeout
+
+In the check, close sessions that have been idle for longer than this. Default: 30s.
+
+#### min_idle_session
+
+In the check, at least the first `n` idle sessions are kept open. Default value: `n`=0
+
+#### tls
+
+==Required==
+
+TLS configuration, see [TLS](/configuration/shared/tls/#outbound).
+
+### Dial Fields
+
+See [Dial Fields](/configuration/shared/dial/) for details.

docs/configuration/outbound/anytls.zh.md

@@ -0,0 +1,66 @@
+---
+icon: material/new-box
+---
+
+!!! question "自 sing-box 1.12.0 起"
+
+### 结构
+
+```json
+{
+  "type": "anytls",
+  "tag": "anytls-out",
+
+  "server": "127.0.0.1",
+  "server_port": 1080,
+  "password": "8JCsPssfgS8tiRwiMlhARg==",
+  "idle_session_check_interval": "30s",
+  "idle_session_timeout": "30s",
+  "min_idle_session": 5,
+  "tls": {},
+
+  ... // 拨号字段
+}
+```
+
+### 字段
+
+#### server
+
+==必填==
+
+服务器地址。
+
+#### server_port
+
+==必填==
+
+服务器端口。
+
+#### password
+
+==必填==
+
+AnyTLS 密码。
+
+#### idle_session_check_interval
+
+检查空闲会话的时间间隔。默认值：30秒。
+
+#### idle_session_timeout
+
+在检查中，关闭闲置时间超过此值的会话。默认值：30秒。
+
+#### min_idle_session
+
+在检查中，至少前 `n` 个空闲会话保持打开状态。默认值：`n`=0
+
+#### tls
+
+==必填==
+
+TLS 配置, 参阅 [TLS](/zh/configuration/shared/tls/#outbound)。
+
+### 拨号字段
+
+参阅 [拨号字段](/zh/configuration/shared/dial/)。

docs/configuration/outbound/index.md

@@ -30,6 +30,7 @@
 | `shadowtls`    | [ShadowTLS](./shadowtls/)       |
 | `tuic`         | [TUIC](./tuic/)                 |
 | `hysteria2`    | [Hysteria2](./hysteria2/)       |
+| `anytls`       | [AnyTLS](./anytls/)             |
 | `tor`          | [Tor](./tor/)                   |
 | `ssh`          | [SSH](./ssh/)                   |
 | `dns`          | [DNS](./dns/)                   |

docs/configuration/outbound/index.zh.md

@@ -30,6 +30,7 @@
 | `shadowtls`    | [ShadowTLS](./shadowtls/)       |
 | `tuic`         | [TUIC](./tuic/)                 |
 | `hysteria2`    | [Hysteria2](./hysteria2/)       |
+| `anytls`       | [AnyTLS](./anytls/)             |
 | `tor`          | [Tor](./tor/)                   |
 | `ssh`          | [SSH](./ssh/)                   |
 | `dns`          | [DNS](./dns/)                   |

docs/configuration/route/rule_action.md

@@ -5,7 +5,10 @@ icon: material/new-box
 !!! quote "Changes in sing-box 1.12.0"
 
     :material-plus: [tls_fragment](#tls_fragment)  
-    :material-plus: [tls_fragment_fallback_delay](#tls_fragment_fallback_delay)
+    :material-plus: [tls_fragment_fallback_delay](#tls_fragment_fallback_delay)  
+    :material-plus: [resolve.disable_cache](#disable_cache)  
+    :material-plus: [resolve.rewrite_ttl](#rewrite_ttl)  
+    :material-plus: [resolve.client_subnet](#client_subnet)
 
 ## Final actions
 
@@ -210,19 +213,44 @@ Timeout for sniffing.
 ```json
 {
   "action": "resolve",
+  "server": "",
   "strategy": "",
-  "server": ""
+  "disable_cache": false,
+  "rewrite_ttl": null,
+  "client_subnet": null
 }
 ```
 
 `resolve` resolve request destination from domain to IP addresses.
 
+#### server
+
+Specifies DNS server tag to use instead of selecting through DNS routing.
+
 #### strategy
 
 DNS resolution strategy, available values are: `prefer_ipv4`, `prefer_ipv6`, `ipv4_only`, `ipv6_only`.
 
 `dns.strategy` will be used by default.
 
-#### server
+#### disable_cache
 
-Specifies DNS server tag to use instead of selecting through DNS routing.
+!!! question "Since sing-box 1.12.0"
+
+Disable cache and save cache in this query.
+
+#### rewrite_ttl
+
+!!! question "Since sing-box 1.12.0"
+
+Rewrite TTL in DNS responses.
+
+#### client_subnet
+
+!!! question "Since sing-box 1.12.0"
+
+Append a `edns0-subnet` OPT extra record with the specified IP prefix to every query by default.
+
+If value is an IP address instead of prefix, `/32` or `/128` will be appended automatically.
+
+Will overrides `dns.client_subnet`.

docs/configuration/route/rule_action.zh.md

@@ -206,19 +206,44 @@ UDP 连接超时时间。
 ```json
 {
   "action": "resolve",
+  "server": "",
   "strategy": "",
-  "server": ""
+  "disable_cache": false,
+  "rewrite_ttl": null,
+  "client_subnet": null
 }
 ```
 
 `resolve` 将请求的目标从域名解析为 IP 地址。
 
+#### server
+
+指定要使用的 DNS 服务器的标签，而不是通过 DNS 路由进行选择。
+
 #### strategy
 
 DNS 解析策略，可用值有：`prefer_ipv4`、`prefer_ipv6`、`ipv4_only`、`ipv6_only`。
 
 默认使用 `dns.strategy`。
 
-#### server
+#### disable_cache
 
-指定要使用的 DNS 服务器的标签，而不是通过 DNS 路由进行选择。
+!!! question "自 sing-box 1.12.0 起"
+
+在此查询中禁用缓存。
+
+#### rewrite_ttl
+
+!!! question "自 sing-box 1.12.0 起"
+
+重写 DNS 回应中的 TTL。
+
+#### client_subnet
+
+!!! question "自 sing-box 1.12.0 起"
+
+默认情况下，将带有指定 IP 前缀的 `edns0-subnet` OPT 附加记录附加到每个查询。
+
+如果值是 IP 地址而不是前缀，则会自动附加 `/32` 或 `/128`。
+
+将覆盖 `dns.client_subnet`.

docs/configuration/shared/tls.md

@@ -1,3 +1,12 @@
+---
+icon: material/alert-decagram
+---
+
+!!! quote "Changes in sing-box 1.12.0"
+
+    :material-delete-clock: [ech.pq_signature_schemes_enabled](#pq_signature_schemes_enabled)  
+    :material-delete-clock: [ech.dynamic_record_sizing_disabled](#dynamic_record_sizing_disabled)
+
 !!! quote "Changes in sing-box 1.10.0"
 
     :material-alert-decagram: [utls](#utls)  
@@ -34,10 +43,13 @@
   },
   "ech": {
     "enabled": false,
-    "pq_signature_schemes_enabled": false,
-    "dynamic_record_sizing_disabled": false,
     "key": [],
-    "key_path": ""
+    "key_path": "",
+
+    // Deprecated
+    
+    "pq_signature_schemes_enabled": false,
+    "dynamic_record_sizing_disabled": false
   },
   "reality": {
     "enabled": false,
@@ -72,10 +84,12 @@
   "certificate_path": "",
   "ech": {
     "enabled": false,
-    "pq_signature_schemes_enabled": false,
-    "dynamic_record_sizing_disabled": false,
     "config": [],
-    "config_path": ""
+    "config_path": "",
+
+    // Deprecated
+    "pq_signature_schemes_enabled": false,
+    "dynamic_record_sizing_disabled": false
   },
   "utls": {
     "enabled": false,
@@ -246,16 +260,22 @@ Chrome fingerprint will be used if empty.
 ECH (Encrypted Client Hello) is a TLS extension that allows a client to encrypt the first part of its ClientHello
 message.
 
-The ECH key and configuration can be generated by `sing-box generate ech-keypair [--pq-signature-schemes-enabled]`.
+The ECH key and configuration can be generated by `sing-box generate ech-keypair`.
 
 #### pq_signature_schemes_enabled
 
+!!! failure "Deprecated in sing-box 1.12.0"
+
+    ECH support has been migrated to use stdlib in sing-box 1.12.0, which does not come with support for PQ signature schemes, so `pq_signature_schemes_enabled` has been deprecated and no longer works.
+
 Enable support for post-quantum peer certificate signature schemes.
 
-It is recommended to match the parameters of `sing-box generate ech-keypair`.
-
 #### dynamic_record_sizing_disabled
 
+!!! failure "Deprecated in sing-box 1.12.0"
+
+    `dynamic_record_sizing_disabled` has nothing to do with ECH, was added by mistake, has been deprecated and no longer works.
+
 Disables adaptive sizing of TLS records.
 
 When true, the largest possible TLS record size is always used.  

docs/configuration/shared/tls.zh.md

@@ -1,3 +1,12 @@
+---
+icon: material/alert-decagram
+---
+
+!!! quote "sing-box 1.12.0 中的更改"
+
+    :material-delete-clock: [ech.pq_signature_schemes_enabled](#pq_signature_schemes_enabled)  
+    :material-delete-clock: [ech.dynamic_record_sizing_disabled](#dynamic_record_sizing_disabled)
+
 !!! quote "sing-box 1.10.0 中的更改"
 
     :material-alert-decagram: [utls](#utls)  
@@ -34,18 +43,21 @@
   },
   "ech": {
     "enabled": false,
-    "pq_signature_schemes_enabled": false,
-    "dynamic_record_sizing_disabled": false,
     "key": [],
-    "key_path": ""
+    "key_path": "",
+
+    // 废弃的
+    
+    "pq_signature_schemes_enabled": false,
+    "dynamic_record_sizing_disabled": false
   },
   "reality": {
     "enabled": false,
     "handshake": {
       "server": "google.com",
       "server_port": 443,
-      ...
-      // 拨号字段
+      
+      ... // 拨号字段
     },
     "private_key": "UuMBgl7MXTPx9inmQp2UC7Jcnwc6XYbwDNebonM-FCc",
     "short_id": [
@@ -240,19 +252,6 @@ ECH (Encrypted Client Hello) 是一个 TLS 扩展，它允许客户端加密其
 
 ECH 配置和密钥可以通过 `sing-box generate ech-keypair [--pq-signature-schemes-enabled]` 生成。
 
-#### pq_signature_schemes_enabled
-
-启用对后量子对等证书签名方案的支持。
-
-建议匹配 `sing-box generate ech-keypair` 的参数。
-
-#### dynamic_record_sizing_disabled
-
-禁用 TLS 记录的自适应大小调整。
-
-如果为 true，则始终使用最大可能的 TLS 记录大小。
-如果为 false，则可能会调整 TLS 记录的大小以尝试改善延迟。
-
 #### key
 
 ==仅服务器==
@@ -285,6 +284,27 @@ ECH PEM 配置路径
 
 如果为空，将尝试从 DNS 加载。
 
+#### pq_signature_schemes_enabled
+
+!!! failure "已在 sing-box 1.12.0 废弃"
+
+    ECH 支持已在 sing-box 1.12.0 迁移至使用标准库，但标准库不支持后量子对等证书签名方案，因此 `pq_signature_schemes_enabled` 已被弃用且不再工作。
+
+启用对后量子对等证书签名方案的支持。
+
+建议匹配 `sing-box generate ech-keypair` 的参数。
+
+#### dynamic_record_sizing_disabled
+
+!!! failure "已在 sing-box 1.12.0 废弃"
+
+    `dynamic_record_sizing_disabled` 与 ECH 无关，是错误添加的，现已弃用且不再工作。
+
+禁用 TLS 记录的自适应大小调整。
+
+如果为 true，则始终使用最大可能的 TLS 记录大小。
+如果为 false，则可能会调整 TLS 记录的大小以尝试改善延迟。
+
 ### ACME 字段
 
 #### domain

docs/deprecated.md

@@ -19,6 +19,17 @@ Legacy `outbound` DNS rules are deprecated
 and can be replaced by dial fields,
 check [Migration](../migration/#migrate-outbound-dns-rule-items-to-domain-resolver).
 
+#### Legacy ECH fields
+
+ECH support has been migrated to use stdlib in sing-box 1.12.0,
+which does not come with support for PQ signature schemes,
+so `pq_signature_schemes_enabled` has been deprecated and no longer works.
+
+Also, `dynamic_record_sizing_disabled` has nothing to do with ECH,
+was added by mistake, has been deprecated and no longer works.
+
+These fields will be removed in sing-box 1.13.0.
+
 ## 1.11.0
 
 #### Legacy special outbounds

docs/deprecated.zh.md

@@ -17,6 +17,15 @@ DNS 服务器已重构，
 且可被拨号字段代替，
 参阅 [迁移指南](/migration/#migrate-outbound-dns-rule-items-to-domain-resolver).
 
+#### 旧的 ECH 字段
+
+ECH 支持已在 sing-box 1.12.0 迁移至使用标准库，但标准库不支持后量子对等证书签名方案，
+因此 `pq_signature_schemes_enabled` 已被弃用且不再工作。
+
+另外，`dynamic_record_sizing_disabled` 与 ECH 无关，是错误添加的，现已弃用且不再工作。
+
+相关字段将在 sing-box 1.13.0 中被移除。
+
 ## 1.11.0
 
 #### 旧的特殊出站

docs/installation/build-from-source.md

@@ -6,19 +6,18 @@ icon: material/file-code
 
 ## :material-graph: Requirements
 
+### sing-box 1.11
+
+* Go 1.23.1 - ~
+
 ### sing-box 1.10
 
 * Go 1.20.0 - ~
-* Go 1.20.0 - ~ with tag `with_quic`, or `with_utls` enabled
-* Go 1.21.0 - ~ with tag `with_ech` enabled
 
 ### sing-box 1.9
 
 * Go 1.18.5 - 1.22.x
 * Go 1.20.0 - 1.22.x with tag `with_quic`, or `with_utls` enabled
-* Go 1.21.0 - 1.22.x with tag `with_ech` enabled
-
-You can download and install Go from: https://go.dev/doc/install, latest version is recommended.
 
 ## :material-fast-forward: Simple Build
 
@@ -46,20 +45,19 @@ go build -tags "tag_a tag_b" ./cmd/sing-box
 
 ## :material-folder-settings: Build Tags
 
-| Build Tag                          | Enabled by default | Description                                                                                                                                                                                                                                                                                                                    |
-|------------------------------------|--------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| `with_quic`                        | :material-check:   | Build with QUIC support, see [QUIC and HTTP3 DNS transports](/configuration/dns/server/), [Naive inbound](/configuration/inbound/naive/), [Hysteria Inbound](/configuration/inbound/hysteria/), [Hysteria Outbound](/configuration/outbound/hysteria/) and [V2Ray Transport#QUIC](/configuration/shared/v2ray-transport#quic). |
-| `with_grpc`                        | :material-close:️  | Build with standard gRPC support, see [V2Ray Transport#gRPC](/configuration/shared/v2ray-transport#grpc).                                                                                                                                                                                                                      |
-| `with_dhcp`                        | :material-check:   | Build with DHCP support, see [DHCP DNS transport](/configuration/dns/server/).                                                                                                                                                                                                                                                 |
-| `with_wireguard`                   | :material-check:   | Build with WireGuard support, see [WireGuard outbound](/configuration/outbound/wireguard/).                                                                                                                                                                                                                                    |
-| `with_ech`                         | :material-check:   | Build with TLS ECH extension support for TLS outbound, see [TLS](/configuration/shared/tls#ech).                                                                                                                                                                                                                               |
-| `with_utls`                        | :material-check:   | Build with [uTLS](https://github.com/refraction-networking/utls) support for TLS outbound, see [TLS](/configuration/shared/tls#utls).                                                                                                                                                                                          |
-| `with_reality_server`              | :material-check:   | Build with reality TLS server support,  see [TLS](/configuration/shared/tls/).                                                                                                                                                                                                                                                 |
-| `with_acme`                        | :material-check:   | Build with ACME TLS certificate issuer support, see [TLS](/configuration/shared/tls/).                                                                                                                                                                                                                                         |
-| `with_clash_api`                   | :material-check:   | Build with Clash API support, see [Experimental](/configuration/experimental#clash-api-fields).                                                                                                                                                                                                                                |
-| `with_v2ray_api`                   | :material-close:️  | Build with V2Ray API support, see [Experimental](/configuration/experimental#v2ray-api-fields).                                                                                                                                                                                                                                |
-| `with_gvisor`                      | :material-check:   | Build with gVisor support, see [Tun inbound](/configuration/inbound/tun#stack) and [WireGuard outbound](/configuration/outbound/wireguard#system_interface).                                                                                                                                                                   |
-| `with_embedded_tor` (CGO required) | :material-close:️  | Build with embedded Tor support, see [Tor outbound](/configuration/outbound/tor/).                                                                                                                                                                                                                                             |
+| Build Tag                          | Enabled by default   | Description                                                                                                                                                                                                                                                                                                                    |
+|------------------------------------|----------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| `with_quic`                        | :material-check:     | Build with QUIC support, see [QUIC and HTTP3 DNS transports](/configuration/dns/server/), [Naive inbound](/configuration/inbound/naive/), [Hysteria Inbound](/configuration/inbound/hysteria/), [Hysteria Outbound](/configuration/outbound/hysteria/) and [V2Ray Transport#QUIC](/configuration/shared/v2ray-transport#quic). |
+| `with_grpc`                        | :material-close:️    | Build with standard gRPC support, see [V2Ray Transport#gRPC](/configuration/shared/v2ray-transport#grpc).                                                                                                                                                                                                                      |
+| `with_dhcp`                        | :material-check:     | Build with DHCP support, see [DHCP DNS transport](/configuration/dns/server/).                                                                                                                                                                                                                                                 |
+| `with_wireguard`                   | :material-check:     | Build with WireGuard support, see [WireGuard outbound](/configuration/outbound/wireguard/).                                                                                                                                                                                                                                    |
+| `with_utls`                        | :material-check:     | Build with [uTLS](https://github.com/refraction-networking/utls) support for TLS outbound, see [TLS](/configuration/shared/tls#utls).                                                                                                                                                                                          |
+| `with_reality_server`              | :material-check:     | Build with reality TLS server support,  see [TLS](/configuration/shared/tls/).                                                                                                                                                                                                                                                 |
+| `with_acme`                        | :material-check:     | Build with ACME TLS certificate issuer support, see [TLS](/configuration/shared/tls/).                                                                                                                                                                                                                                         |
+| `with_clash_api`                   | :material-check:     | Build with Clash API support, see [Experimental](/configuration/experimental#clash-api-fields).                                                                                                                                                                                                                                |
+| `with_v2ray_api`                   | :material-close:️    | Build with V2Ray API support, see [Experimental](/configuration/experimental#v2ray-api-fields).                                                                                                                                                                                                                                |
+| `with_gvisor`                      | :material-check:     | Build with gVisor support, see [Tun inbound](/configuration/inbound/tun#stack) and [WireGuard outbound](/configuration/outbound/wireguard#system_interface).                                                                                                                                                                   |
+| `with_embedded_tor` (CGO required) | :material-close:️    | Build with embedded Tor support, see [Tor outbound](/configuration/outbound/tor/).                                                                                                                                                                                                                                             |
 | `with_tailscale`                   | :material-check:   | Build with Tailscale support, see [Tailscale endpoint](/configuration/endpoint/tailscale)                                                                                                                                                                                                                                      |
 
 It is not recommended to change the default build tag list unless you really know what you are adding.

docs/installation/build-from-source.zh.md

@@ -6,10 +6,13 @@ icon: material/file-code
 
 ## :material-graph: 要求
 
+### sing-box 1.11
+
+* Go 1.23.1 - ~
+
 ### sing-box 1.10
 
 * Go 1.20.0 - ~
-* Go 1.20.0 - ~ with tag `with_quic`, or `with_utls` enabled
 * Go 1.21.0 - ~ with tag `with_ech` enabled
 
 ### sing-box 1.9
@@ -52,7 +55,6 @@ go build -tags "tag_a tag_b" ./cmd/sing-box
 | `with_grpc`                        | :material-close:️ | Build with standard gRPC support, see [V2Ray Transport#gRPC](/configuration/shared/v2ray-transport#grpc).                                                                                                                                                                                                                      |
 | `with_dhcp`                        | :material-check:  | Build with DHCP support, see [DHCP DNS transport](/configuration/dns/server/).                                                                                                                                                                                                                                                 |
 | `with_wireguard`                   | :material-check:  | Build with WireGuard support, see [WireGuard outbound](/configuration/outbound/wireguard/).                                                                                                                                                                                                                                    |
-| `with_ech`                         | :material-check:  | Build with TLS ECH extension support for TLS outbound, see [TLS](/configuration/shared/tls#ech).                                                                                                                                                                                                                               |
 | `with_utls`                        | :material-check:  | Build with [uTLS](https://github.com/refraction-networking/utls) support for TLS outbound, see [TLS](/configuration/shared/tls#utls).                                                                                                                                                                                          |
 | `with_reality_server`              | :material-check:  | Build with reality TLS server support,  see [TLS](/configuration/shared/tls/).                                                                                                                                                                                                                                                 |
 | `with_acme`                        | :material-check:  | Build with ACME TLS certificate issuer support, see [TLS](/configuration/shared/tls/).                                                                                                                                                                                                                                         |

docs/installation/package-manager.zh.md

@@ -51,7 +51,7 @@ icon: material/package
 
 === ":material-linux: Linux"
 
-    | 类型       | 平台            | 链接                           | 命令                                                                                                            |
+    | 类型       | 平台            | 命令                           | 链接                                                                                                            |
     |----------|---------------|------------------------------|---------------------------------------------------------------------------------------------------------------|
     | AUR      | Arch Linux    | `? -S sing-box`              | [![AUR package](https://repology.org/badge/version-for-repo/aur/sing-box.svg)][aur]                           |
     | nixpkgs  | NixOS         | `nix-env -iA nixos.sing-box` | [![nixpkgs unstable package](https://repology.org/badge/version-for-repo/nix_unstable/sing-box.svg)][nixpkgs] |
@@ -61,13 +61,13 @@ icon: material/package
 
 === ":material-apple: macOS"
 
-    | 类型       | 平台    | 链接                      | 命令                                                                                             |
+    | 类型       | 平台    | 命令                      | 链接                                                                                             |
     |----------|-------|-------------------------|------------------------------------------------------------------------------------------------|
     | Homebrew | macOS | `brew install sing-box` | [![Homebrew package](https://repology.org/badge/version-for-repo/homebrew/sing-box.svg)][brew] |
 
 === ":material-microsoft-windows: Windows"
 
-    | 类型         | 平台      | 链接                        | 命令                                                                                                  |
+    | 类型         | 平台      | 命令                        | 链接                                                                                                  |
     |------------|---------|---------------------------|-----------------------------------------------------------------------------------------------------|
     | Scoop      | Windows | `scoop install sing-box`  | [![Scoop package](https://repology.org/badge/version-for-repo/scoop/sing-box.svg)][scoop]           |
     | Chocolatey | Windows | `choco install sing-box`  | [![Chocolatey package](https://repology.org/badge/version-for-repo/chocolatey/sing-box.svg)][choco] |
@@ -75,13 +75,13 @@ icon: material/package
 
 === ":material-android: Android"
 
-    | 类型     | 平台      | 链接                 | 命令                                                                                           |
+    | 类型     | 平台      | 命令                 | 链接                                                                                           |
     |--------|---------|--------------------|----------------------------------------------------------------------------------------------|
     | Termux | Android | `pkg add sing-box` | [![Termux package](https://repology.org/badge/version-for-repo/termux/sing-box.svg)][termux] |
 
 === ":material-freebsd: FreeBSD"
 
-    | 类型         | 平台      | 链接                     | 命令                                                                                         |
+    | 类型         | 平台      | 命令                     | 链接                                                                                         |
     |------------|---------|------------------------|--------------------------------------------------------------------------------------------|
     | FreshPorts | FreeBSD | `pkg install sing-box` | [![FreeBSD port](https://repology.org/badge/version-for-repo/freebsd/sing-box.svg)][ports] |
 

experimental/clashapi/server.go

@@ -131,7 +131,7 @@ func NewServer(ctx context.Context, logFactory log.ObservableFactory, options op
 		s.externalUI = filemanager.BasePath(ctx, os.ExpandEnv(options.ExternalUI))
 		chiRouter.Group(func(r chi.Router) {
 			r.Get("/ui", http.RedirectHandler("/ui/", http.StatusMovedPermanently).ServeHTTP)
-			r.Handle("/ui/*", http.StripPrefix("/ui/", http.FileServer(http.Dir(s.externalUI))))
+			r.Handle("/ui/*", http.StripPrefix("/ui/", http.FileServer(Dir(s.externalUI))))
 		})
 	}
 	return s, nil

experimental/clashapi/server_fs.go

@@ -0,0 +1,18 @@
+package clashapi
+
+import "net/http"
+
+type Dir http.Dir
+
+func (d Dir) Open(name string) (http.File, error) {
+	file, err := http.Dir(d).Open(name)
+	if err != nil {
+		return nil, err
+	}
+	return &fileWrapper{file}, nil
+}
+
+// workaround for #2345 #2596
+type fileWrapper struct {
+	http.File
+}

experimental/clashapi/server_resources.go

@@ -43,7 +43,6 @@ func (s *Server) downloadExternalUI() error {
 	} else {
 		downloadURL = "https://github.com/MetaCubeX/Yacd-meta/archive/gh-pages.zip"
 	}
-	s.logger.Info("downloading external ui")
 	var detour adapter.Outbound
 	if s.externalUIDownloadDetour != "" {
 		outbound, loaded := s.outbound.Outbound(s.externalUIDownloadDetour)
@@ -55,6 +54,7 @@ func (s *Server) downloadExternalUI() error {
 		outbound := s.outbound.Default()
 		detour = outbound
 	}
+	s.logger.Info("downloading external ui using outbound/", detour.Type(), "[", detour.Tag(), "]")
 	httpClient := &http.Client{
 		Transport: &http.Transport{
 			ForceAttemptHTTP2:   true,

experimental/deprecated/constants.go

@@ -144,14 +144,16 @@ var OptionTUNGSO = Note{
 	DeprecatedVersion: "1.11.0",
 	ScheduledVersion:  "1.12.0",
 	EnvName:           "TUN_GSO",
+	MigrationLink:     "https://sing-box.sagernet.org/deprecated/#gso-option-in-tun",
 }
 
 var OptionLegacyDNSTransport = Note{
 	Name:              "legacy-dns-transport",
-	Description:       "legacy DNS transport",
+	Description:       "legacy DNS servers",
 	DeprecatedVersion: "1.12.0",
 	ScheduledVersion:  "1.14.0",
-	EnvName:           "LEGACY_DNS_TRANSPORT",
+	EnvName:           "LEGACY_DNS_SERVERS",
+	MigrationLink:     "https://sing-box.sagernet.org/migration/#migrate-to-new-dns-server-formats",
 }
 
 var OptionLegacyDNSFakeIPOptions = Note{
@@ -159,6 +161,7 @@ var OptionLegacyDNSFakeIPOptions = Note{
 	Description:       "legacy DNS fakeip options",
 	DeprecatedVersion: "1.12.0",
 	ScheduledVersion:  "1.14.0",
+	MigrationLink:     "https://sing-box.sagernet.org/migration/#migrate-to-new-dns-server-formats",
 }
 
 var OptionOutboundDNSRuleItem = Note{
@@ -166,6 +169,7 @@ var OptionOutboundDNSRuleItem = Note{
 	Description:       "outbound DNS rule item",
 	DeprecatedVersion: "1.12.0",
 	ScheduledVersion:  "1.14.0",
+	MigrationLink:     "https://sing-box.sagernet.org/migration/#migrate-outbound-dns-rule-items-to-domain-resolver",
 }
 
 var OptionMissingDomainResolver = Note{
@@ -173,6 +177,15 @@ var OptionMissingDomainResolver = Note{
 	Description:       "missing `route.default_domain_resolver` or `domain_resolver` in dial fields",
 	DeprecatedVersion: "1.12.0",
 	ScheduledVersion:  "1.14.0",
+	MigrationLink:     "https://sing-box.sagernet.org/migration/#migrate-outbound-dns-rule-items-to-domain-resolver",
+}
+
+var OptionLegacyECHOptions = Note{
+	Name:              "legacy-ech-options",
+	Description:       "legacy ECH options",
+	DeprecatedVersion: "1.12.0",
+	ScheduledVersion:  "1.13.0",
+	MigrationLink:     "https://sing-box.sagernet.org/deprecated/#legacy-ech-fields",
 }
 
 var Options = []Note{
@@ -190,4 +203,5 @@ var Options = []Note{
 	OptionLegacyDNSFakeIPOptions,
 	OptionOutboundDNSRuleItem,
 	OptionMissingDomainResolver,
+	OptionLegacyECHOptions,
 }

experimental/deprecated/stderr.go

@@ -28,11 +28,15 @@ func (f *stderrManager) ReportDeprecated(feature Note) {
 		f.logger.Warn(feature.MessageWithLink())
 		return
 	}
-	enable, enableErr := strconv.ParseBool(os.Getenv("ENABLE_DEPRECATED_" + feature.EnvName))
-	if enableErr == nil && enable {
-		f.logger.Warn(feature.MessageWithLink())
-		return
+	if feature.EnvName != "" {
+		enable, enableErr := strconv.ParseBool(os.Getenv("ENABLE_DEPRECATED_" + feature.EnvName))
+		if enableErr == nil && enable {
+			f.logger.Warn(feature.MessageWithLink())
+			return
+		}
+		f.logger.Error(feature.MessageWithLink())
+		f.logger.Fatal("to continuing using this feature, set environment variable ENABLE_DEPRECATED_" + feature.EnvName + "=true")
+	} else {
+		f.logger.Error(feature.MessageWithLink())
 	}
-	f.logger.Error(feature.MessageWithLink())
-	f.logger.Fatal("to continuing using this feature, set environment variable ENABLE_DEPRECATED_" + feature.EnvName + "=true")
 }

experimental/libbox/command_power.go

@@ -4,7 +4,6 @@ import (
 	"encoding/binary"
 	"net"
 
-	E "github.com/sagernet/sing/common/exceptions"
 	"github.com/sagernet/sing/common/varbin"
 )
 
@@ -18,19 +17,7 @@ func (c *CommandClient) ServiceReload() error {
 	if err != nil {
 		return err
 	}
-	var hasError bool
-	err = binary.Read(conn, binary.BigEndian, &hasError)
-	if err != nil {
-		return err
-	}
-	if hasError {
-		errorMessage, err := varbin.ReadValue[string](conn, binary.BigEndian)
-		if err != nil {
-			return err
-		}
-		return E.New(errorMessage)
-	}
-	return nil
+	return readError(conn)
 }
 
 func (s *CommandServer) handleServiceReload(conn net.Conn) error {
@@ -55,19 +42,7 @@ func (c *CommandClient) ServiceClose() error {
 	if err != nil {
 		return err
 	}
-	var hasError bool
-	err = binary.Read(conn, binary.BigEndian, &hasError)
-	if err != nil {
-		return nil
-	}
-	if hasError {
-		errorMessage, err := varbin.ReadValue[string](conn, binary.BigEndian)
-		if err != nil {
-			return nil
-		}
-		return E.New(errorMessage)
-	}
-	return nil
+	return readError(conn)
 }
 
 func (s *CommandServer) handleServiceClose(conn net.Conn) error {

experimental/libbox/dns.go

@@ -134,7 +134,7 @@ func (c *ExchangeContext) RawSuccess(result []byte) {
 }
 
 func (c *ExchangeContext) ErrorCode(code int32) {
-	c.error = dns.RCodeError(code)
+	c.error = dns.RcodeError(code)
 }
 
 func (c *ExchangeContext) ErrnoCode(code int32) {

experimental/libbox/service_pause.go

@@ -31,3 +31,7 @@ func (s *BoxService) Wake() {
 func (s *BoxService) ResetNetwork() {
 	s.instance.Router().ResetNetwork()
 }
+
+func (s *BoxService) UpdateWIFIState() {
+	s.instance.Network().UpdateWIFIState()
+}

go.mod

@@ -2,9 +2,8 @@ module github.com/sagernet/sing-box
 
 go 1.23.1
 
-toolchain go1.24.0
-
 require (
+	github.com/anytls/sing-anytls v0.0.5
 	github.com/caddyserver/certmagic v0.21.7
 	github.com/cloudflare/circl v1.6.0
 	github.com/cretz/bine v0.2.0
@@ -21,20 +20,19 @@ require (
 	github.com/oschwald/maxminddb-golang v1.13.1
 	github.com/sagernet/asc-go v0.0.0-20241217030726-d563060fe4e1
 	github.com/sagernet/bbolt v0.0.0-20231014093535-ea5cb2fe9f0a
-	github.com/sagernet/cloudflare-tls v0.0.0-20231208171750-a4483c1b7cd1
 	github.com/sagernet/cors v1.2.1
 	github.com/sagernet/fswatch v0.1.1
 	github.com/sagernet/gomobile v0.1.4
-	github.com/sagernet/gvisor v0.0.0-20250217052116-ed66b6946f72
+	github.com/sagernet/gvisor v0.0.0-20241123041152-536d05261cff
 	github.com/sagernet/quic-go v0.49.0-beta.1
 	github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691
-	github.com/sagernet/sing v0.6.2-0.20250210105917-3464ed3babc0
+	github.com/sagernet/sing v0.6.2-0.20250210072154-8dff604468ff
 	github.com/sagernet/sing-mux v0.3.1
 	github.com/sagernet/sing-quic v0.4.1-beta.1
 	github.com/sagernet/sing-shadowsocks v0.2.7
 	github.com/sagernet/sing-shadowsocks2 v0.2.0
 	github.com/sagernet/sing-shadowtls v0.2.0
-	github.com/sagernet/sing-tun v0.6.2-0.20250217135654-784bb584392f
+	github.com/sagernet/sing-tun v0.6.1
 	github.com/sagernet/sing-vmess v0.2.0
 	github.com/sagernet/smux v0.0.0-20231208180855-7041f6ea79e7
 	github.com/sagernet/tailscale v1.79.0-mod.1

go.sum

@@ -8,6 +8,8 @@ github.com/alexbrainman/sspi v0.0.0-20231016080023-1a75b4708caa h1:LHTHcTQiSGT7V
 github.com/alexbrainman/sspi v0.0.0-20231016080023-1a75b4708caa/go.mod h1:cEWa1LVoE5KvSD9ONXsZrj0z6KqySlCCNKHlLzbqAt4=
 github.com/andybalholm/brotli v1.1.0 h1:eLKJA0d02Lf0mVpIDgYnqXcUn0GqVmEFny3VuID1U3M=
 github.com/andybalholm/brotli v1.1.0/go.mod h1:sms7XGricyQI9K10gOSf56VKKWS4oLer58Q+mhRPtnY=
+github.com/anytls/sing-anytls v0.0.5 h1:I1NIh3zKTSXThLG5UgjsOOT/x2DZJqjfBzjuP/wZlDk=
+github.com/anytls/sing-anytls v0.0.5/go.mod h1:7rjN6IukwysmdusYsrV51Fgu1uW6vsrdd6ctjnEAln8=
 github.com/bits-and-blooms/bitset v1.13.0 h1:bAQ9OPNFYbGHV6Nez0tmNI0RiEu7/hxlYJRUA0wFAVE=
 github.com/bits-and-blooms/bitset v1.13.0/go.mod h1:7hO7Gc7Pp1vODcmWvKMRA9BNmbv6a/7QIWpPxHddWR8=
 github.com/caddyserver/certmagic v0.21.7 h1:66KJioPFJwttL43KYSWk7ErSmE6LfaJgCQuhm8Sg6fg=
@@ -163,16 +165,14 @@ github.com/sagernet/asc-go v0.0.0-20241217030726-d563060fe4e1 h1:qi+ijeREa0yfAaO
 github.com/sagernet/asc-go v0.0.0-20241217030726-d563060fe4e1/go.mod h1:JULDuzTMn2gyZFcjpTVZP4/UuwAdbHJ0bum2RdjXojU=
 github.com/sagernet/bbolt v0.0.0-20231014093535-ea5cb2fe9f0a h1:+NkI2670SQpQWvkkD2QgdTuzQG263YZ+2emfpeyGqW0=
 github.com/sagernet/bbolt v0.0.0-20231014093535-ea5cb2fe9f0a/go.mod h1:63s7jpZqcDAIpj8oI/1v4Izok+npJOHACFCU6+huCkM=
-github.com/sagernet/cloudflare-tls v0.0.0-20231208171750-a4483c1b7cd1 h1:YbmpqPQEMdlk9oFSKYWRqVuu9qzNiOayIonKmv1gCXY=
-github.com/sagernet/cloudflare-tls v0.0.0-20231208171750-a4483c1b7cd1/go.mod h1:J2yAxTFPDjrDPhuAi9aWFz2L3ox9it4qAluBBbN0H5k=
 github.com/sagernet/cors v1.2.1 h1:Cv5Z8y9YSD6Gm+qSpNrL3LO4lD3eQVvbFYJSG7JCMHQ=
 github.com/sagernet/cors v1.2.1/go.mod h1:O64VyOjjhrkLmQIjF4KGRrJO/5dVXFdpEmCW/eISRAI=
 github.com/sagernet/fswatch v0.1.1 h1:YqID+93B7VRfqIH3PArW/XpJv5H4OLEVWDfProGoRQs=
 github.com/sagernet/fswatch v0.1.1/go.mod h1:nz85laH0mkQqJfaOrqPpkwtU1znMFNVTpT/5oRsVz/o=
 github.com/sagernet/gomobile v0.1.4 h1:WzX9ka+iHdupMgy2Vdich+OAt7TM8C2cZbIbzNjBrJY=
 github.com/sagernet/gomobile v0.1.4/go.mod h1:Pqq2+ZVvs10U7xK+UwJgwYWUykewi8H6vlslAO73n9E=
-github.com/sagernet/gvisor v0.0.0-20250217052116-ed66b6946f72 h1:Jgv6N59yiVMEwimTcFV1EVcu2Aa7R2Wh1ZAYNzWP2qA=
-github.com/sagernet/gvisor v0.0.0-20250217052116-ed66b6946f72/go.mod h1:ehZwnT2UpmOWAHFL48XdBhnd4Qu4hN2O3Ji0us3ZHMw=
+github.com/sagernet/gvisor v0.0.0-20241123041152-536d05261cff h1:mlohw3360Wg1BNGook/UHnISXhUx4Gd/3tVLs5T0nSs=
+github.com/sagernet/gvisor v0.0.0-20241123041152-536d05261cff/go.mod h1:ehZwnT2UpmOWAHFL48XdBhnd4Qu4hN2O3Ji0us3ZHMw=
 github.com/sagernet/netlink v0.0.0-20240612041022-b9a21c07ac6a h1:ObwtHN2VpqE0ZNjr6sGeT00J8uU7JF4cNUdb44/Duis=
 github.com/sagernet/netlink v0.0.0-20240612041022-b9a21c07ac6a/go.mod h1:xLnfdiJbSp8rNqYEdIW/6eDO4mVoogml14Bh2hSiFpM=
 github.com/sagernet/nftables v0.3.0-beta.4 h1:kbULlAwAC3jvdGAC1P5Fa3GSxVwQJibNenDW2zaXr8I=
@@ -182,8 +182,8 @@ github.com/sagernet/quic-go v0.49.0-beta.1/go.mod h1:uesWD1Ihrldq1M3XtjuEvIUqi8W
 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 v0.2.18/go.mod h1:OL6k2F0vHmEzXz2KW19qQzu172FDgSbUSODylighuVo=
-github.com/sagernet/sing v0.6.2-0.20250210105917-3464ed3babc0 h1:8gTBdpb2JeNq4oAb8AHCisUI+mZlrpD0qMRrsb9EnAo=
-github.com/sagernet/sing v0.6.2-0.20250210105917-3464ed3babc0/go.mod h1:ARkL0gM13/Iv5VCZmci/NuoOlePoIsW0m7BWfln/Hak=
+github.com/sagernet/sing v0.6.2-0.20250210072154-8dff604468ff h1:5UGghwx8cI14qFa0ienrLekAYfhdKAiWvJUkY7rHmsI=
+github.com/sagernet/sing v0.6.2-0.20250210072154-8dff604468ff/go.mod h1:ARkL0gM13/Iv5VCZmci/NuoOlePoIsW0m7BWfln/Hak=
 github.com/sagernet/sing-mux v0.3.1 h1:kvCc8HyGAskDHDQ0yQvoTi/7J4cZPB/VJMsAM3MmdQI=
 github.com/sagernet/sing-mux v0.3.1/go.mod h1:Mkdz8LnDstthz0HWuA/5foncnDIdcNN5KZ6AdJX+x78=
 github.com/sagernet/sing-quic v0.4.1-beta.1 h1:V2VfMckT3EQR3ZdfSzJgZZDsvfZZH42QAZpnOnHKa0s=
@@ -194,8 +194,8 @@ github.com/sagernet/sing-shadowsocks2 v0.2.0 h1:wpZNs6wKnR7mh1wV9OHwOyUr21VkS3wK
 github.com/sagernet/sing-shadowsocks2 v0.2.0/go.mod h1:RnXS0lExcDAovvDeniJ4IKa2IuChrdipolPYWBv9hWQ=
 github.com/sagernet/sing-shadowtls v0.2.0 h1:cLKe4OAOFwuhmAIuPLj//CIL7Q9js+pIDardhJ+/osk=
 github.com/sagernet/sing-shadowtls v0.2.0/go.mod h1:agU+Fw5X+xnWVyRHyFthoZCX3MfWKCFPm4JUf+1oaxo=
-github.com/sagernet/sing-tun v0.6.2-0.20250217135654-784bb584392f h1:VEtmCNfk8RuZcYz/Xx63F2QjcgG3z/7Pa0uiJciQo+Y=
-github.com/sagernet/sing-tun v0.6.2-0.20250217135654-784bb584392f/go.mod h1:UiOi1ombGaAzWkGSgH4qcP7Zpq8FjWc1uQmleK8oPCE=
+github.com/sagernet/sing-tun v0.6.1 h1:4l0+gnEKcGjlWfUVTD+W0BRApqIny/lU2ZliurE+VMo=
+github.com/sagernet/sing-tun v0.6.1/go.mod h1:fisFCbC4Vfb6HqQNcwPJi2CDK2bf0Xapyz3j3t4cnHE=
 github.com/sagernet/sing-vmess v0.2.0 h1:pCMGUXN2k7RpikQV65/rtXtDHzb190foTfF9IGTMZrI=
 github.com/sagernet/sing-vmess v0.2.0/go.mod h1:jDAZ0A0St1zVRkyvhAPRySOFfhC+4SQtO5VYyeFotgA=
 github.com/sagernet/smux v0.0.0-20231208180855-7041f6ea79e7 h1:DImB4lELfQhplLTxeq2z31Fpv8CQqqrUwTbrIRumZqQ=

include/registry.go

@@ -15,6 +15,7 @@ import (
 	"github.com/sagernet/sing-box/dns/transport/local"
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
+	"github.com/sagernet/sing-box/protocol/anytls"
 	"github.com/sagernet/sing-box/protocol/block"
 	"github.com/sagernet/sing-box/protocol/direct"
 	protocolDNS "github.com/sagernet/sing-box/protocol/dns"
@@ -53,6 +54,7 @@ func InboundRegistry() *inbound.Registry {
 	naive.RegisterInbound(registry)
 	shadowtls.RegisterInbound(registry)
 	vless.RegisterInbound(registry)
+	anytls.RegisterInbound(registry)
 
 	registerQUICInbounds(registry)
 	registerStubForRemovedInbounds(registry)
@@ -80,6 +82,7 @@ func OutboundRegistry() *outbound.Registry {
 	ssh.RegisterOutbound(registry)
 	shadowtls.RegisterOutbound(registry)
 	vless.RegisterOutbound(registry)
+	anytls.RegisterOutbound(registry)
 
 	registerQUICOutbounds(registry)
 	registerWireGuardOutbound(registry)
@@ -104,7 +107,6 @@ func DNSTransportRegistry() *dns.TransportRegistry {
 	transport.RegisterUDP(registry)
 	transport.RegisterTLS(registry)
 	transport.RegisterHTTPS(registry)
-	transport.RegisterPredefined(registry)
 	hosts.RegisterTransport(registry)
 	local.RegisterTransport(registry)
 	fakeip.RegisterTransport(registry)

mkdocs.yml

@@ -84,13 +84,13 @@ nav:
               - configuration/dns/server/index.md
               - Legacy: configuration/dns/server/legacy.md
               - Local: configuration/dns/server/local.md
+              - Hosts: configuration/dns/server/hosts.md
               - TCP: configuration/dns/server/tcp.md
               - UDP: configuration/dns/server/udp.md
               - TLS: configuration/dns/server/tls.md
               - QUIC: configuration/dns/server/quic.md
               - HTTPS: configuration/dns/server/https.md
               - HTTP3: configuration/dns/server/http3.md
-              - Predefined: configuration/dns/server/predefined.md
               - DHCP: configuration/dns/server/dhcp.md
               - FakeIP: configuration/dns/server/fakeip.md
               - Tailscale: configuration/dns/server/tailscale.md
@@ -144,6 +144,7 @@ nav:
           - VLESS: configuration/inbound/vless.md
           - TUIC: configuration/inbound/tuic.md
           - Hysteria2: configuration/inbound/hysteria2.md
+          - AnyTLS: configuration/inbound/anytls.md
           - Tun: configuration/inbound/tun.md
           - Redirect: configuration/inbound/redirect.md
           - TProxy: configuration/inbound/tproxy.md
@@ -162,6 +163,7 @@ nav:
           - VLESS: configuration/outbound/vless.md
           - TUIC: configuration/outbound/tuic.md
           - Hysteria2: configuration/outbound/hysteria2.md
+          - AnyTLS: configuration/outbound/anytls.md
           - Tor: configuration/outbound/tor.md
           - SSH: configuration/outbound/ssh.md
           - DNS: configuration/outbound/dns.md

option/anytls.go

@@ -0,0 +1,25 @@
+package option
+
+import "github.com/sagernet/sing/common/json/badoption"
+
+type AnyTLSInboundOptions struct {
+	ListenOptions
+	InboundTLSOptionsContainer
+	Users         []AnyTLSUser               `json:"users,omitempty"`
+	PaddingScheme badoption.Listable[string] `json:"padding_scheme,omitempty"`
+}
+
+type AnyTLSUser struct {
+	Name     string `json:"name,omitempty"`
+	Password string `json:"password,omitempty"`
+}
+
+type AnyTLSOutboundOptions struct {
+	DialerOptions
+	ServerOptions
+	OutboundTLSOptionsContainer
+	Password                 string             `json:"password,omitempty"`
+	IdleSessionCheckInterval badoption.Duration `json:"idle_session_check_interval,omitempty"`
+	IdleSessionTimeout       badoption.Duration `json:"idle_session_timeout,omitempty"`
+	MinIdleSession           int                `json:"min_idle_session,omitempty"`
+}

option/dns.go

@@ -46,7 +46,46 @@ func (o *DNSOptions) UnmarshalJSONContext(ctx context.Context, content []byte) e
 	}
 	legacyOptions := o.LegacyDNSOptions
 	o.LegacyDNSOptions = LegacyDNSOptions{}
-	return badjson.UnmarshallExcludedContext(ctx, content, legacyOptions, &o.RawDNSOptions)
+	err = badjson.UnmarshallExcludedContext(ctx, content, legacyOptions, &o.RawDNSOptions)
+	if err != nil {
+		return err
+	}
+	rcodeMap := make(map[string]int)
+	o.Servers = common.Filter(o.Servers, func(it NewDNSServerOptions) bool {
+		if it.Type == C.DNSTypeLegacyRcode {
+			rcodeMap[it.Tag] = it.Options.(int)
+			return false
+		}
+		return true
+	})
+	if len(rcodeMap) > 0 {
+		for i := 0; i < len(o.Rules); i++ {
+			rewriteRcode(rcodeMap, &o.Rules[i])
+		}
+	}
+	return nil
+}
+
+func rewriteRcode(rcodeMap map[string]int, rule *DNSRule) {
+	switch rule.Type {
+	case C.RuleTypeDefault:
+		rewriteRcodeAction(rcodeMap, &rule.DefaultOptions.DNSRuleAction)
+	case C.RuleTypeLogical:
+		rewriteRcodeAction(rcodeMap, &rule.LogicalOptions.DNSRuleAction)
+	}
+}
+
+func rewriteRcodeAction(rcodeMap map[string]int, ruleAction *DNSRuleAction) {
+	if ruleAction.Action != C.RuleActionTypeRoute {
+		return
+	}
+	rcode, loaded := rcodeMap[ruleAction.RouteOptions.Server]
+	if !loaded {
+		return
+	}
+	ruleAction.Action = C.RuleActionTypePredefined
+	ruleAction.PredefinedOptions.Rcode = common.Ptr(DNSRCode(rcode))
+	return
 }
 
 type DNSClientOptions struct {
@@ -87,7 +126,7 @@ func (o *NewDNSServerOptions) UnmarshalJSONContext(ctx context.Context, content
 	}
 	registry := service.FromContext[DNSTransportOptionsRegistry](ctx)
 	if registry == nil {
-		return E.New("missing outbound options registry in context")
+		return E.New("missing DNS transport options registry in context")
 	}
 	var options any
 	switch o.Type {
@@ -102,7 +141,7 @@ func (o *NewDNSServerOptions) UnmarshalJSONContext(ctx context.Context, content
 			return E.New("unknown transport type: ", o.Type)
 		}
 	}
-	err = badjson.UnmarshallExcludedContext(ctx, content, (*_Outbound)(o), options)
+	err = badjson.UnmarshallExcludedContext(ctx, content, (*_NewDNSServerOptions)(o), options)
 	if err != nil {
 		return err
 	}
@@ -178,12 +217,10 @@ func (o *NewDNSServerOptions) Upgrade(ctx context.Context) error {
 		if !serverAddr.IsValid() {
 			return E.New("invalid server address")
 		}
-		remoteOptions.Server = serverAddr.Addr.String()
+		remoteOptions.Server = serverAddr.AddrString()
 		if serverAddr.Port != 0 && serverAddr.Port != 53 {
 			remoteOptions.ServerPort = serverAddr.Port
 		}
-		remoteOptions.Server = serverAddr.AddrString()
-		remoteOptions.ServerPort = serverAddr.Port
 	case C.DNSTypeTCP:
 		o.Type = C.DNSTypeTCP
 		o.Options = &remoteOptions
@@ -191,19 +228,17 @@ func (o *NewDNSServerOptions) Upgrade(ctx context.Context) error {
 		if !serverAddr.IsValid() {
 			return E.New("invalid server address")
 		}
-		remoteOptions.Server = serverAddr.Addr.String()
+		remoteOptions.Server = serverAddr.AddrString()
 		if serverAddr.Port != 0 && serverAddr.Port != 53 {
 			remoteOptions.ServerPort = serverAddr.Port
 		}
-		remoteOptions.Server = serverAddr.AddrString()
-		remoteOptions.ServerPort = serverAddr.Port
 	case C.DNSTypeTLS, C.DNSTypeQUIC:
 		o.Type = serverType
 		serverAddr := M.ParseSocksaddr(serverURL.Host)
 		if !serverAddr.IsValid() {
 			return E.New("invalid server address")
 		}
-		remoteOptions.Server = serverAddr.Addr.String()
+		remoteOptions.Server = serverAddr.AddrString()
 		if serverAddr.Port != 0 && serverAddr.Port != 853 {
 			remoteOptions.ServerPort = serverAddr.Port
 		}
@@ -222,7 +257,7 @@ func (o *NewDNSServerOptions) Upgrade(ctx context.Context) error {
 		if !serverAddr.IsValid() {
 			return E.New("invalid server address")
 		}
-		httpsOptions.Server = serverAddr.Addr.String()
+		httpsOptions.Server = serverAddr.AddrString()
 		if serverAddr.Port != 0 && serverAddr.Port != 443 {
 			httpsOptions.ServerPort = serverAddr.Port
 		}
@@ -247,14 +282,8 @@ func (o *NewDNSServerOptions) Upgrade(ctx context.Context) error {
 		default:
 			return E.New("unknown rcode: ", serverURL.Host)
 		}
-		o.Type = C.DNSTypePreDefined
-		o.Options = &PredefinedDNSServerOptions{
-			Responses: []DNSResponseOptions{
-				{
-					RCode: common.Ptr(DNSRCode(rcode)),
-				},
-			},
-		}
+		o.Type = C.DNSTypeLegacyRcode
+		o.Options = rcode
 	case C.DNSTypeDHCP:
 		o.Type = C.DNSTypeDHCP
 		dhcpOptions := DHCPDNSServerOptions{}

option/dns_record.go

@@ -3,29 +3,14 @@ package option
 import (
 	"encoding/base64"
 
-	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/buf"
 	E "github.com/sagernet/sing/common/exceptions"
 	"github.com/sagernet/sing/common/json"
-	"github.com/sagernet/sing/common/json/badoption"
+	M "github.com/sagernet/sing/common/metadata"
 
 	"github.com/miekg/dns"
 )
 
-type PredefinedDNSServerOptions struct {
-	Responses []DNSResponseOptions `json:"responses,omitempty"`
-}
-
-type DNSResponseOptions struct {
-	Query     badoption.Listable[string]       `json:"query,omitempty"`
-	QueryType badoption.Listable[DNSQueryType] `json:"query_type,omitempty"`
-
-	RCode  *DNSRCode                            `json:"rcode,omitempty"`
-	Answer badoption.Listable[DNSRecordOptions] `json:"answer,omitempty"`
-	Ns     badoption.Listable[DNSRecordOptions] `json:"ns,omitempty"`
-	Extra  badoption.Listable[DNSRecordOptions] `json:"extra,omitempty"`
-}
-
 type DNSRCode int
 
 func (r DNSRCode) MarshalJSON() ([]byte, error) {
@@ -63,46 +48,6 @@ func (r *DNSRCode) Build() int {
 	return int(*r)
 }
 
-func (o DNSResponseOptions) Build() ([]dns.Question, *dns.Msg, error) {
-	var questions []dns.Question
-	if len(o.Query) == 0 && len(o.QueryType) == 0 {
-		questions = []dns.Question{{Qclass: dns.ClassINET}}
-	} else if len(o.Query) == 0 {
-		for _, queryType := range o.QueryType {
-			questions = append(questions, dns.Question{
-				Qtype:  uint16(queryType),
-				Qclass: dns.ClassINET,
-			})
-		}
-	} else if len(o.QueryType) == 0 {
-		for _, domain := range o.Query {
-			questions = append(questions, dns.Question{
-				Name:   dns.Fqdn(domain),
-				Qclass: dns.ClassINET,
-			})
-		}
-	} else {
-		for _, queryType := range o.QueryType {
-			for _, domain := range o.Query {
-				questions = append(questions, dns.Question{
-					Name:   dns.Fqdn(domain),
-					Qtype:  uint16(queryType),
-					Qclass: dns.ClassINET,
-				})
-			}
-		}
-	}
-	return questions, &dns.Msg{
-		MsgHdr: dns.MsgHdr{
-			Response: true,
-			Rcode:    o.RCode.Build(),
-		},
-		Answer: common.Map(o.Answer, DNSRecordOptions.build),
-		Ns:     common.Map(o.Ns, DNSRecordOptions.build),
-		Extra:  common.Map(o.Extra, DNSRecordOptions.build),
-	}, nil
-}
-
 type DNSRecordOptions struct {
 	dns.RR
 	fromBase64 bool
@@ -135,6 +80,9 @@ func (o *DNSRecordOptions) UnmarshalJSON(data []byte) error {
 	if err != nil {
 		return err
 	}
+	if a, isA := record.(*dns.A); isA {
+		a.A = M.AddrFromIP(a.A).Unmap().AsSlice()
+	}
 	o.RR = record
 	return nil
 }
@@ -149,6 +97,6 @@ func (o *DNSRecordOptions) unmarshalBase64(binary []byte) error {
 	return nil
 }
 
-func (o DNSRecordOptions) build() dns.RR {
+func (o DNSRecordOptions) Build() dns.RR {
 	return o.RR
 }

option/rule_action.go

@@ -92,6 +92,7 @@ type _DNSRuleAction struct {
 	RouteOptions        DNSRouteActionOptions        `json:"-"`
 	RouteOptionsOptions DNSRouteOptionsActionOptions `json:"-"`
 	RejectOptions       RejectActionOptions          `json:"-"`
+	PredefinedOptions   DNSRouteActionPredefined     `json:"-"`
 }
 
 type DNSRuleAction _DNSRuleAction
@@ -109,6 +110,8 @@ func (r DNSRuleAction) MarshalJSON() ([]byte, error) {
 		v = r.RouteOptionsOptions
 	case C.RuleActionTypeReject:
 		v = r.RejectOptions
+	case C.RuleActionTypePredefined:
+		v = r.PredefinedOptions
 	default:
 		return nil, E.New("unknown DNS rule action: " + r.Action)
 	}
@@ -129,6 +132,8 @@ func (r *DNSRuleAction) UnmarshalJSONContext(ctx context.Context, data []byte) e
 		v = &r.RouteOptionsOptions
 	case C.RuleActionTypeReject:
 		v = &r.RejectOptions
+	case C.RuleActionTypePredefined:
+		v = &r.PredefinedOptions
 	default:
 		return E.New("unknown DNS rule action: " + r.Action)
 	}
@@ -256,6 +261,14 @@ type _RejectActionOptions struct {
 
 type RejectActionOptions _RejectActionOptions
 
+func (r RejectActionOptions) MarshalJSON() ([]byte, error) {
+	switch r.Method {
+	case C.RuleActionRejectMethodDefault:
+		r.Method = ""
+	}
+	return json.Marshal((_RejectActionOptions)(r))
+}
+
 func (r *RejectActionOptions) UnmarshalJSON(bytes []byte) error {
 	err := json.Unmarshal(bytes, (*_RejectActionOptions)(r))
 	if err != nil {
@@ -280,6 +293,16 @@ type RouteActionSniff struct {
 }
 
 type RouteActionResolve struct {
-	Strategy DomainStrategy `json:"strategy,omitempty"`
-	Server   string         `json:"server,omitempty"`
+	Server       string                `json:"server,omitempty"`
+	Strategy     DomainStrategy        `json:"strategy,omitempty"`
+	DisableCache bool                  `json:"disable_cache,omitempty"`
+	RewriteTTL   *uint32               `json:"rewrite_ttl,omitempty"`
+	ClientSubnet *badoption.Prefixable `json:"client_subnet,omitempty"`
+}
+
+type DNSRouteActionPredefined struct {
+	Rcode  *DNSRCode                            `json:"rcode,omitempty"`
+	Answer badoption.Listable[DNSRecordOptions] `json:"answer,omitempty"`
+	Ns     badoption.Listable[DNSRecordOptions] `json:"ns,omitempty"`
+	Extra  badoption.Listable[DNSRecordOptions] `json:"extra,omitempty"`
 }

option/tls.go

@@ -83,19 +83,25 @@ type InboundRealityHandshakeOptions struct {
 }
 
 type InboundECHOptions struct {
-	Enabled                     bool                       `json:"enabled,omitempty"`
-	PQSignatureSchemesEnabled   bool                       `json:"pq_signature_schemes_enabled,omitempty"`
-	DynamicRecordSizingDisabled bool                       `json:"dynamic_record_sizing_disabled,omitempty"`
-	Key                         badoption.Listable[string] `json:"key,omitempty"`
-	KeyPath                     string                     `json:"key_path,omitempty"`
+	Enabled bool                       `json:"enabled,omitempty"`
+	Key     badoption.Listable[string] `json:"key,omitempty"`
+	KeyPath string                     `json:"key_path,omitempty"`
+
+	// Deprecated: not supported by stdlib
+	PQSignatureSchemesEnabled bool `json:"pq_signature_schemes_enabled,omitempty"`
+	// Deprecated: added by fault
+	DynamicRecordSizingDisabled bool `json:"dynamic_record_sizing_disabled,omitempty"`
 }
 
 type OutboundECHOptions struct {
-	Enabled                     bool                       `json:"enabled,omitempty"`
-	PQSignatureSchemesEnabled   bool                       `json:"pq_signature_schemes_enabled,omitempty"`
-	DynamicRecordSizingDisabled bool                       `json:"dynamic_record_sizing_disabled,omitempty"`
-	Config                      badoption.Listable[string] `json:"config,omitempty"`
-	ConfigPath                  string                     `json:"config_path,omitempty"`
+	Enabled    bool                       `json:"enabled,omitempty"`
+	Config     badoption.Listable[string] `json:"config,omitempty"`
+	ConfigPath string                     `json:"config_path,omitempty"`
+
+	// Deprecated: not supported by stdlib
+	PQSignatureSchemesEnabled bool `json:"pq_signature_schemes_enabled,omitempty"`
+	// Deprecated: added by fault
+	DynamicRecordSizingDisabled bool `json:"dynamic_record_sizing_disabled,omitempty"`
 }
 
 type OutboundUTLSOptions struct {

option/types.go

@@ -12,11 +12,6 @@ import (
 	mDNS "github.com/miekg/dns"
 )
 
-var (
-	DefaultNetworks   = []string{N.NetworkTCP, N.NetworkUDP}
-	DefaultIPNetworks = []string{N.NetworkTCP, N.NetworkUDP, N.NetworkICMPv4, N.NetworkICMPv6}
-)
-
 type NetworkList string
 
 func (v *NetworkList) UnmarshalJSON(content []byte) error {
@@ -42,9 +37,9 @@ func (v *NetworkList) UnmarshalJSON(content []byte) error {
 	return nil
 }
 
-func (v NetworkList) Build(defaultNetworks []string) []string {
+func (v NetworkList) Build() []string {
 	if v == "" {
-		return defaultNetworks
+		return []string{N.NetworkTCP, N.NetworkUDP}
 	}
 	return strings.Split(string(v), "\n")
 }

protocol/anytls/inbound.go

@@ -0,0 +1,135 @@
+package anytls
+
+import (
+	"context"
+	"net"
+	"strings"
+
+	"github.com/sagernet/sing-box/adapter"
+	"github.com/sagernet/sing-box/adapter/inbound"
+	"github.com/sagernet/sing-box/common/listener"
+	"github.com/sagernet/sing-box/common/tls"
+	"github.com/sagernet/sing-box/common/uot"
+	C "github.com/sagernet/sing-box/constant"
+	"github.com/sagernet/sing-box/log"
+	"github.com/sagernet/sing-box/option"
+	"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"
+
+	anytls "github.com/anytls/sing-anytls"
+	"github.com/anytls/sing-anytls/padding"
+)
+
+func RegisterInbound(registry *inbound.Registry) {
+	inbound.Register[option.AnyTLSInboundOptions](registry, C.TypeAnyTLS, NewInbound)
+}
+
+type Inbound struct {
+	inbound.Adapter
+	tlsConfig tls.ServerConfig
+	router    adapter.ConnectionRouterEx
+	logger    logger.ContextLogger
+	listener  *listener.Listener
+	service   *anytls.Service
+}
+
+func NewInbound(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.AnyTLSInboundOptions) (adapter.Inbound, error) {
+	inbound := &Inbound{
+		Adapter: inbound.NewAdapter(C.TypeAnyTLS, tag),
+		router:  uot.NewRouter(router, logger),
+		logger:  logger,
+	}
+
+	if options.TLS != nil && options.TLS.Enabled {
+		tlsConfig, err := tls.NewServer(ctx, logger, common.PtrValueOrDefault(options.TLS))
+		if err != nil {
+			return nil, err
+		}
+		inbound.tlsConfig = tlsConfig
+	}
+
+	paddingScheme := padding.DefaultPaddingScheme
+	if len(options.PaddingScheme) > 0 {
+		paddingScheme = []byte(strings.Join(options.PaddingScheme, "\n"))
+	}
+
+	service, err := anytls.NewService(anytls.ServiceConfig{
+		Users: common.Map(options.Users, func(it option.AnyTLSUser) anytls.User {
+			return (anytls.User)(it)
+		}),
+		PaddingScheme: paddingScheme,
+		Handler:       (*inboundHandler)(inbound),
+		Logger:        logger,
+	})
+	if err != nil {
+		return nil, err
+	}
+	inbound.service = service
+	inbound.listener = listener.New(listener.Options{
+		Context:           ctx,
+		Logger:            logger,
+		Network:           []string{N.NetworkTCP},
+		Listen:            options.ListenOptions,
+		ConnectionHandler: inbound,
+	})
+	return inbound, nil
+}
+
+func (h *Inbound) Start(stage adapter.StartStage) error {
+	if stage != adapter.StartStateStart {
+		return nil
+	}
+	if h.tlsConfig != nil {
+		err := h.tlsConfig.Start()
+		if err != nil {
+			return err
+		}
+	}
+	return h.listener.Start()
+}
+
+func (h *Inbound) Close() error {
+	return common.Close(h.listener, h.tlsConfig)
+}
+
+func (h *Inbound) NewConnectionEx(ctx context.Context, conn net.Conn, metadata adapter.InboundContext, onClose N.CloseHandlerFunc) {
+	if h.tlsConfig != nil {
+		tlsConn, err := tls.ServerHandshake(ctx, conn, h.tlsConfig)
+		if err != nil {
+			N.CloseOnHandshakeFailure(conn, onClose, err)
+			h.logger.ErrorContext(ctx, E.Cause(err, "process connection from ", metadata.Source, ": TLS handshake"))
+			return
+		}
+		conn = tlsConn
+	}
+	err := h.service.NewConnection(adapter.WithContext(ctx, &metadata), conn, metadata.Source, onClose)
+	if err != nil {
+		N.CloseOnHandshakeFailure(conn, onClose, err)
+		h.logger.ErrorContext(ctx, E.Cause(err, "process connection from ", metadata.Source))
+	}
+}
+
+type inboundHandler Inbound
+
+func (h *inboundHandler) NewConnectionEx(ctx context.Context, conn net.Conn, source M.Socksaddr, destination M.Socksaddr, onClose N.CloseHandlerFunc) {
+	var metadata adapter.InboundContext
+	metadata.Inbound = h.Tag()
+	metadata.InboundType = h.Type()
+	//nolint:staticcheck
+	metadata.InboundDetour = h.listener.ListenOptions().Detour
+	//nolint:staticcheck
+	metadata.InboundOptions = h.listener.ListenOptions().InboundOptions
+	metadata.Source = source
+	metadata.Destination = destination
+	if userName, _ := auth.UserFromContext[string](ctx); userName != "" {
+		metadata.User = userName
+		h.logger.InfoContext(ctx, "[", userName, "] inbound connection to ", metadata.Destination)
+	} else {
+		h.logger.InfoContext(ctx, "inbound connection to ", metadata.Destination)
+	}
+	h.router.RouteConnectionEx(ctx, conn, metadata, onClose)
+}

protocol/anytls/outbound.go

@@ -0,0 +1,130 @@
+package anytls
+
+import (
+	"context"
+	"net"
+	"os"
+
+	"github.com/sagernet/sing-box/adapter"
+	"github.com/sagernet/sing-box/adapter/outbound"
+	"github.com/sagernet/sing-box/common/dialer"
+	"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/common"
+	M "github.com/sagernet/sing/common/metadata"
+	N "github.com/sagernet/sing/common/network"
+	"github.com/sagernet/sing/common/uot"
+
+	anytls "github.com/anytls/sing-anytls"
+)
+
+func RegisterOutbound(registry *outbound.Registry) {
+	outbound.Register[option.AnyTLSOutboundOptions](registry, C.TypeAnyTLS, NewOutbound)
+}
+
+type Outbound struct {
+	outbound.Adapter
+	dialer    N.Dialer
+	server    M.Socksaddr
+	tlsConfig tls.Config
+	client    *anytls.Client
+	uotClient *uot.Client
+	logger    log.ContextLogger
+}
+
+func NewOutbound(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.AnyTLSOutboundOptions) (adapter.Outbound, error) {
+	outbound := &Outbound{
+		Adapter: outbound.NewAdapterWithDialerOptions(C.TypeAnyTLS, tag, []string{N.NetworkTCP, N.NetworkUDP}, options.DialerOptions),
+		server:  options.ServerOptions.Build(),
+		logger:  logger,
+	}
+	if options.TLS == nil || !options.TLS.Enabled {
+		return nil, C.ErrTLSRequired
+	}
+
+	tlsConfig, err := tls.NewClient(ctx, options.Server, common.PtrValueOrDefault(options.TLS))
+	if err != nil {
+		return nil, err
+	}
+	outbound.tlsConfig = tlsConfig
+
+	outboundDialer, err := dialer.NewWithOptions(dialer.Options{
+		Context: ctx,
+		Options: options.DialerOptions,
+	})
+	if err != nil {
+		return nil, err
+	}
+	outbound.dialer = outboundDialer
+
+	client, err := anytls.NewClient(ctx, anytls.ClientConfig{
+		Password:                 options.Password,
+		IdleSessionCheckInterval: options.IdleSessionCheckInterval.Build(),
+		IdleSessionTimeout:       options.IdleSessionTimeout.Build(),
+		MinIdleSession:           options.MinIdleSession,
+		DialOut:                  outbound.dialOut,
+		Logger:                   logger,
+	})
+	if err != nil {
+		return nil, err
+	}
+	outbound.client = client
+
+	outbound.uotClient = &uot.Client{
+		Dialer:  (anytlsDialer)(client.CreateProxy),
+		Version: uot.Version,
+	}
+	return outbound, nil
+}
+
+type anytlsDialer func(ctx context.Context, destination M.Socksaddr) (net.Conn, error)
+
+func (d anytlsDialer) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
+	return d(ctx, destination)
+}
+
+func (d anytlsDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
+	return nil, os.ErrInvalid
+}
+
+func (h *Outbound) dialOut(ctx context.Context) (net.Conn, error) {
+	conn, err := h.dialer.DialContext(ctx, N.NetworkTCP, h.server)
+	if err != nil {
+		return nil, err
+	}
+	tlsConn, err := tls.ClientHandshake(ctx, conn, h.tlsConfig)
+	if err != nil {
+		common.Close(tlsConn, conn)
+		return nil, err
+	}
+	return tlsConn, nil
+}
+
+func (h *Outbound) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
+	ctx, metadata := adapter.ExtendContext(ctx)
+	metadata.Outbound = h.Tag()
+	metadata.Destination = destination
+	switch N.NetworkName(network) {
+	case N.NetworkTCP:
+		h.logger.InfoContext(ctx, "outbound connection to ", destination)
+		return h.client.CreateProxy(ctx, destination)
+	case N.NetworkUDP:
+		h.logger.InfoContext(ctx, "outbound UoT packet connection to ", destination)
+		return h.uotClient.DialContext(ctx, network, destination)
+	}
+	return nil, os.ErrInvalid
+}
+
+func (h *Outbound) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
+	ctx, metadata := adapter.ExtendContext(ctx)
+	metadata.Outbound = h.Tag()
+	metadata.Destination = destination
+	h.logger.InfoContext(ctx, "outbound UoT packet connection to ", destination)
+	return h.uotClient.ListenPacket(ctx, destination)
+}
+
+func (h *Outbound) Close() error {
+	return common.Close(h.client)
+}