Update documentation

* Update debug.yml

Signed-off-by: 永雏塔菲 <108621198+taffychan@users.noreply.github.com>

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -12,7 +12,7 @@ body:
           required: true
         - label: Yes, I've searched similar issues on GitHub and didn't find any.
           required: true
-        - label: Yes, I've included all information below (version, config, log, etc).
+        - label: Yes, I've included all information below (version, **FULL** config, **FULL** log, etc).
           required: true
 
   - type: textarea

.github/workflows/debug.yml

@@ -55,6 +55,27 @@ jobs:
       - name: Run Test
         run: |
           go test -v ./...
+  build_go118:
+    name: Debug build (Go 1.18)
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: Setup Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.18.7
+      - name: Cache go module
+        uses: actions/cache@v2
+        with:
+          path: |
+            ~/go/pkg/mod
+          key: go118-${{ hashFiles('**/go.sum') }}
+      - name: Run Test
+        run: |
+          go test -v ./...
   cross:
     strategy:
       matrix:
@@ -128,6 +149,9 @@ jobs:
           - name: linux-mips64el
             goos: linux
             goarch: mips64le
+          - name: linux-s390x
+            goos: linux
+            goarch: s390x
           # darwin
           - name: darwin-amd64
             goos: darwin
@@ -192,4 +216,4 @@ jobs:
         uses: actions/upload-artifact@v2
         with:
           name: sing-box-${{ matrix.name }}
-          path: sing-box*
+          path: sing-box*

.github/workflows/docker.yml

@@ -15,6 +15,8 @@ jobs:
         uses: actions/checkout@v2
       - name: Setup Docker Buildx
         uses: docker/setup-buildx-action@v1
+      - name: Setup QEMU for Docker Buildx
+        uses: docker/setup-qemu-action@v2
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v1
         with:
@@ -29,15 +31,18 @@ jobs:
       - name: Get tag to build
         id: tag
         run: |
+          echo "latest=ghcr.io/sagernet/sing-box:latest" >> $GITHUB_OUTPUT
           if [[ -z "${{ github.event.inputs.tag }}" ]]; then
-            echo ::set-output name=tag::ghcr.io/sagernet/sing-box:${{ github.ref_name }}
+            echo "versioned=ghcr.io/sagernet/sing-box:${{ github.ref_name }}" >> $GITHUB_OUTPUT
           else
-            echo ::set-output name=tag::ghcr.io/sagernet/sing-box:${{ github.event.inputs.tag }}
+            echo "versioned=ghcr.io/sagernet/sing-box:${{ github.event.inputs.tag }}" >> $GITHUB_OUTPUT
           fi
       - name: Build and release Docker images
         uses: docker/build-push-action@v2
         with:
-          platforms: linux/386,linux/amd64
+          platforms: linux/386,linux/amd64,linux/arm64,linux/s390x
           target: dist
-          tags: ${{ steps.tag.outputs.tag }}
-          push: true
+          tags: |
+            ${{ steps.tag.outputs.latest }}
+            ${{ steps.tag.outputs.versioned }}
+          push: true

.goreleaser.yaml

@@ -14,6 +14,7 @@ builds:
       - with_gvisor
       - with_quic
       - with_wireguard
+      - with_utls
       - with_clash_api
     env:
       - CGO_ENABLED=0
@@ -25,6 +26,7 @@ builds:
       - linux_amd64_v3
       - linux_arm64
       - linux_arm_7
+      - linux_s390x
       - windows_amd64_v1
       - windows_amd64_v3
       - windows_386

Makefile

@@ -1,6 +1,6 @@
 NAME = sing-box
 COMMIT = $(shell git rev-parse --short HEAD)
-TAGS ?= with_gvisor,with_quic,with_wireguard,with_clash_api
+TAGS ?= with_gvisor,with_quic,with_wireguard,with_utls,with_clash_api
 TAGS_TEST ?= with_gvisor,with_quic,with_wireguard,with_grpc,with_ech,with_utls,with_shadowsocksr
 PARAMS = -v -trimpath -tags "$(TAGS)" -ldflags "-s -w -buildid="
 MAIN = ./cmd/sing-box

adapter/router.go

@@ -60,3 +60,7 @@ type DNSRule interface {
 	Rule
 	DisableCache() bool
 }
+
+type InterfaceUpdateListener interface {
+	InterfaceUpdated() error
+}

common/dialer/default.go

@@ -3,7 +3,6 @@ package dialer
 import (
 	"context"
 	"net"
-	"net/netip"
 	"time"
 
 	"github.com/sagernet/sing-box/adapter"
@@ -54,10 +53,13 @@ var warnTFOOnUnsupportedPlatform = warning.New(
 )
 
 type DefaultDialer struct {
-	dialer      tfo.Dialer
-	udpDialer   net.Dialer
+	dialer4     tfo.Dialer
+	dialer6     tfo.Dialer
+	udpDialer4  net.Dialer
+	udpDialer6  net.Dialer
 	udpListener net.ListenConfig
-	bindUDPAddr string
+	udpAddr4    string
+	udpAddr6    string
 }
 
 func NewDefault(router adapter.Router, options option.DialerOptions) *DefaultDialer {
@@ -120,22 +122,37 @@ func NewDefault(router adapter.Router, options option.DialerOptions) *DefaultDia
 		dialer.Control = control.Append(dialer.Control, control.DisableUDPFragment())
 		listener.Control = control.Append(listener.Control, control.DisableUDPFragment())
 	}
-	var bindUDPAddr string
-	udpDialer := dialer
-	var bindAddress netip.Addr
-	if options.BindAddress != nil {
-		bindAddress = options.BindAddress.Build()
+	var (
+		dialer4    = dialer
+		udpDialer4 = dialer
+		udpAddr4   string
+	)
+	if options.Inet4BindAddress != nil {
+		bindAddr := options.Inet4BindAddress.Build()
+		dialer4.LocalAddr = &net.TCPAddr{IP: bindAddr.AsSlice()}
+		udpDialer4.LocalAddr = &net.UDPAddr{IP: bindAddr.AsSlice()}
+		udpAddr4 = M.SocksaddrFrom(bindAddr, 0).String()
 	}
-	if bindAddress.IsValid() {
-		dialer.LocalAddr = &net.TCPAddr{
-			IP: bindAddress.AsSlice(),
-		}
-		udpDialer.LocalAddr = &net.UDPAddr{
-			IP: bindAddress.AsSlice(),
-		}
-		bindUDPAddr = M.SocksaddrFrom(bindAddress, 0).String()
+	var (
+		dialer6    = dialer
+		udpDialer6 = dialer
+		udpAddr6   string
+	)
+	if options.Inet6BindAddress != nil {
+		bindAddr := options.Inet6BindAddress.Build()
+		dialer6.LocalAddr = &net.TCPAddr{IP: bindAddr.AsSlice()}
+		udpDialer6.LocalAddr = &net.UDPAddr{IP: bindAddr.AsSlice()}
+		udpAddr6 = M.SocksaddrFrom(bindAddr, 0).String()
+	}
+	return &DefaultDialer{
+		tfo.Dialer{Dialer: dialer4, DisableTFO: !options.TCPFastOpen},
+		tfo.Dialer{Dialer: dialer6, DisableTFO: !options.TCPFastOpen},
+		udpDialer4,
+		udpDialer6,
+		listener,
+		udpAddr4,
+		udpAddr6,
 	}
-	return &DefaultDialer{tfo.Dialer{Dialer: dialer, DisableTFO: !options.TCPFastOpen}, udpDialer, listener, bindUDPAddr}
 }
 
 func (d *DefaultDialer) DialContext(ctx context.Context, network string, address M.Socksaddr) (net.Conn, error) {
@@ -144,11 +161,23 @@ func (d *DefaultDialer) DialContext(ctx context.Context, network string, address
 	}
 	switch N.NetworkName(network) {
 	case N.NetworkUDP:
-		return d.udpDialer.DialContext(ctx, network, address.String())
+		if !address.IsIPv6() {
+			return d.udpDialer4.DialContext(ctx, network, address.String())
+		} else {
+			return d.udpDialer6.DialContext(ctx, network, address.String())
+		}
+	}
+	if !address.IsIPv6() {
+		return DialSlowContext(&d.dialer4, ctx, network, address)
+	} else {
+		return DialSlowContext(&d.dialer6, ctx, network, address)
 	}
-	return DialSlowContext(&d.dialer, ctx, network, address)
 }
 
 func (d *DefaultDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
-	return d.udpListener.ListenPacket(ctx, N.NetworkUDP, d.bindUDPAddr)
+	if !destination.IsIPv6() {
+		return d.udpListener.ListenPacket(ctx, N.NetworkUDP, d.udpAddr4)
+	} else {
+		return d.udpListener.ListenPacket(ctx, N.NetworkUDP, d.udpAddr6)
+	}
 }

common/mux/client.go

@@ -329,6 +329,23 @@ func (c *ClientPacketConn) Write(b []byte) (n int, err error) {
 	return c.ExtendedConn.Write(b)
 }
 
+func (c *ClientPacketConn) ReadBuffer(buffer *buf.Buffer) (err error) {
+	if !c.responseRead {
+		err = c.readResponse()
+		if err != nil {
+			return
+		}
+		c.responseRead = true
+	}
+	var length uint16
+	err = binary.Read(c.ExtendedConn, binary.BigEndian, &length)
+	if err != nil {
+		return
+	}
+	_, err = buffer.ReadFullFrom(c.ExtendedConn, int(length))
+	return
+}
+
 func (c *ClientPacketConn) WriteBuffer(buffer *buf.Buffer) error {
 	if !c.requestWrite {
 		defer buffer.Release()
@@ -343,6 +360,11 @@ func (c *ClientPacketConn) FrontHeadroom() int {
 	return 2
 }
 
+func (c *ClientPacketConn) ReadPacket(buffer *buf.Buffer) (destination M.Socksaddr, err error) {
+	err = c.ReadBuffer(buffer)
+	return
+}
+
 func (c *ClientPacketConn) WritePacket(buffer *buf.Buffer, destination M.Socksaddr) error {
 	return c.WriteBuffer(buffer)
 }

common/mux/protocol.go

@@ -43,7 +43,7 @@ func ParseProtocol(name string) (Protocol, error) {
 func (p Protocol) newServer(conn net.Conn) (abstractSession, error) {
 	switch p {
 	case ProtocolSMux:
-		session, err := smux.Server(conn, nil)
+		session, err := smux.Server(conn, smuxConfig())
 		if err != nil {
 			return nil, err
 		}
@@ -58,7 +58,7 @@ func (p Protocol) newServer(conn net.Conn) (abstractSession, error) {
 func (p Protocol) newClient(conn net.Conn) (abstractSession, error) {
 	switch p {
 	case ProtocolSMux:
-		session, err := smux.Client(conn, nil)
+		session, err := smux.Client(conn, smuxConfig())
 		if err != nil {
 			return nil, err
 		}
@@ -70,6 +70,12 @@ func (p Protocol) newClient(conn net.Conn) (abstractSession, error) {
 	}
 }
 
+func smuxConfig() *smux.Config {
+	config := smux.DefaultConfig()
+	config.KeepAliveDisabled = true
+	return config
+}
+
 func yaMuxConfig() *yamux.Config {
 	config := yamux.DefaultConfig()
 	config.LogOutput = io.Discard

common/process/searcher_darwin.go

@@ -5,6 +5,8 @@ import (
 	"encoding/binary"
 	"net/netip"
 	"os"
+	"strconv"
+	"strings"
 	"syscall"
 	"unsafe"
 
@@ -29,6 +31,22 @@ func (d *darwinSearcher) FindProcessInfo(ctx context.Context, network string, so
 	return &Info{ProcessPath: processName, UserId: -1}, nil
 }
 
+var structSize = func() int {
+	value, _ := syscall.Sysctl("kern.osrelease")
+	major, _, _ := strings.Cut(value, ".")
+	n, _ := strconv.ParseInt(major, 10, 64)
+	switch true {
+	case n >= 22:
+		return 408
+	default:
+		// from darwin-xnu/bsd/netinet/in_pcblist.c:get_pcblist_n
+		// size/offset are round up (aligned) to 8 bytes in darwin
+		// rup8(sizeof(xinpcb_n)) + rup8(sizeof(xsocket_n)) +
+		// 2 * rup8(sizeof(xsockbuf_n)) + rup8(sizeof(xsockstat_n))
+		return 384
+	}
+}()
+
 func findProcessName(network string, ip netip.Addr, port int) (string, error) {
 	var spath string
 	switch network {
@@ -53,7 +71,7 @@ func findProcessName(network string, ip netip.Addr, port int) (string, error) {
 	// size/offset are round up (aligned) to 8 bytes in darwin
 	// rup8(sizeof(xinpcb_n)) + rup8(sizeof(xsocket_n)) +
 	// 2 * rup8(sizeof(xsockbuf_n)) + rup8(sizeof(xsockstat_n))
-	itemSize := 384
+	itemSize := structSize
 	if network == N.NetworkTCP {
 		// rup8(sizeof(xtcpcb_n))
 		itemSize += 208

common/tls/client.go

@@ -15,6 +15,9 @@ import (
 )
 
 func NewDialerFromOptions(router adapter.Router, dialer N.Dialer, serverAddress string, options option.OutboundTLSOptions) (N.Dialer, error) {
+	if !options.Enabled {
+		return dialer, nil
+	}
 	config, err := NewClient(router, serverAddress, options)
 	if err != nil {
 		return nil, err
@@ -23,12 +26,15 @@ func NewDialerFromOptions(router adapter.Router, dialer N.Dialer, serverAddress
 }
 
 func NewClient(router adapter.Router, serverAddress string, options option.OutboundTLSOptions) (Config, error) {
+	if !options.Enabled {
+		return nil, nil
+	}
 	if options.ECH != nil && options.ECH.Enabled {
-		return newECHClient(router, serverAddress, options)
+		return NewECHClient(router, serverAddress, options)
 	} else if options.UTLS != nil && options.UTLS.Enabled {
-		return newUTLSClient(router, serverAddress, options)
+		return NewUTLSClient(router, serverAddress, options)
 	} else {
-		return newStdClient(serverAddress, options)
+		return NewSTDClient(serverAddress, options)
 	}
 }
 

common/tls/config.go

@@ -15,10 +15,13 @@ type (
 )
 
 type Config interface {
+	ServerName() string
+	SetServerName(serverName string)
 	NextProtos() []string
 	SetNextProtos(nextProto []string)
 	Config() (*STDConfig, error)
 	Client(conn net.Conn) Conn
+	Clone() Config
 }
 
 type ServerConfig interface {

common/tls/ech_client.go

@@ -11,35 +11,49 @@ import (
 	"net/netip"
 	"os"
 
+	cftls "github.com/sagernet/cloudflare-tls"
 	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-box/option"
-	cftls "github.com/sagernet/sing-box/transport/cloudflaretls"
 	"github.com/sagernet/sing-dns"
 	E "github.com/sagernet/sing/common/exceptions"
 
 	mDNS "github.com/miekg/dns"
 )
 
-type echClientConfig struct {
+type ECHClientConfig struct {
 	config *cftls.Config
 }
 
-func (e *echClientConfig) NextProtos() []string {
+func (e *ECHClientConfig) ServerName() string {
+	return e.config.ServerName
+}
+
+func (e *ECHClientConfig) SetServerName(serverName string) {
+	e.config.ServerName = serverName
+}
+
+func (e *ECHClientConfig) NextProtos() []string {
 	return e.config.NextProtos
 }
 
-func (e *echClientConfig) SetNextProtos(nextProto []string) {
+func (e *ECHClientConfig) SetNextProtos(nextProto []string) {
 	e.config.NextProtos = nextProto
 }
 
-func (e *echClientConfig) Config() (*STDConfig, error) {
+func (e *ECHClientConfig) Config() (*STDConfig, error) {
 	return nil, E.New("unsupported usage for ECH")
 }
 
-func (e *echClientConfig) Client(conn net.Conn) Conn {
+func (e *ECHClientConfig) Client(conn net.Conn) Conn {
 	return &echConnWrapper{cftls.Client(conn, e.config)}
 }
 
+func (e *ECHClientConfig) Clone() Config {
+	return &ECHClientConfig{
+		config: e.config.Clone(),
+	}
+}
+
 type echConnWrapper struct {
 	*cftls.Conn
 }
@@ -62,7 +76,7 @@ func (c *echConnWrapper) ConnectionState() tls.ConnectionState {
 	}
 }
 
-func newECHClient(router adapter.Router, serverAddress string, options option.OutboundTLSOptions) (Config, error) {
+func NewECHClient(router adapter.Router, serverAddress string, options option.OutboundTLSOptions) (Config, error) {
 	var serverName string
 	if options.ServerName != "" {
 		serverName = options.ServerName
@@ -162,7 +176,7 @@ func newECHClient(router adapter.Router, serverAddress string, options option.Ou
 	} else {
 		tlsConfig.GetClientECHConfigs = fetchECHClientConfig(router)
 	}
-	return &echClientConfig{&tlsConfig}, nil
+	return &ECHClientConfig{&tlsConfig}, nil
 }
 
 func fetchECHClientConfig(router adapter.Router) func(ctx context.Context, serverName string) ([]cftls.ECHConfig, error) {

common/tls/ech_stub.go

@@ -8,6 +8,6 @@ import (
 	E "github.com/sagernet/sing/common/exceptions"
 )
 
-func newECHClient(router adapter.Router, serverAddress string, options option.OutboundTLSOptions) (Config, error) {
+func NewECHClient(router adapter.Router, serverAddress string, options option.OutboundTLSOptions) (Config, error) {
 	return nil, E.New(`ECH is not included in this build, rebuild with -tags with_ech`)
 }

common/tls/server.go

@@ -12,7 +12,10 @@ import (
 )
 
 func NewServer(ctx context.Context, logger log.Logger, options option.InboundTLSOptions) (ServerConfig, error) {
-	return newSTDServer(ctx, logger, options)
+	if !options.Enabled {
+		return nil, nil
+	}
+	return NewSTDServer(ctx, logger, options)
 }
 
 func ServerHandshake(ctx context.Context, conn net.Conn, config ServerConfig) (Conn, error) {

common/tls/std_client.go

@@ -11,11 +11,39 @@ import (
 	E "github.com/sagernet/sing/common/exceptions"
 )
 
-type stdClientConfig struct {
+type STDClientConfig struct {
 	config *tls.Config
 }
 
-func newStdClient(serverAddress string, options option.OutboundTLSOptions) (Config, error) {
+func (s *STDClientConfig) ServerName() string {
+	return s.config.ServerName
+}
+
+func (s *STDClientConfig) SetServerName(serverName string) {
+	s.config.ServerName = serverName
+}
+
+func (s *STDClientConfig) NextProtos() []string {
+	return s.config.NextProtos
+}
+
+func (s *STDClientConfig) SetNextProtos(nextProto []string) {
+	s.config.NextProtos = nextProto
+}
+
+func (s *STDClientConfig) Config() (*STDConfig, error) {
+	return s.config, nil
+}
+
+func (s *STDClientConfig) Client(conn net.Conn) Conn {
+	return tls.Client(conn, s.config)
+}
+
+func (s *STDClientConfig) Clone() Config {
+	return &STDClientConfig{s.config.Clone()}
+}
+
+func NewSTDClient(serverAddress string, options option.OutboundTLSOptions) (Config, error) {
 	var serverName string
 	if options.ServerName != "" {
 		serverName = options.ServerName
@@ -96,21 +124,5 @@ func newStdClient(serverAddress string, options option.OutboundTLSOptions) (Conf
 		}
 		tlsConfig.RootCAs = certPool
 	}
-	return &stdClientConfig{&tlsConfig}, nil
-}
-
-func (s *stdClientConfig) NextProtos() []string {
-	return s.config.NextProtos
-}
-
-func (s *stdClientConfig) SetNextProtos(nextProto []string) {
-	s.config.NextProtos = nextProto
-}
-
-func (s *stdClientConfig) Config() (*STDConfig, error) {
-	return s.config, nil
-}
-
-func (s *stdClientConfig) Client(conn net.Conn) Conn {
-	return tls.Client(conn, s.config)
+	return &STDClientConfig{&tlsConfig}, nil
 }

common/tls/std_server.go

@@ -15,6 +15,8 @@ import (
 	"github.com/fsnotify/fsnotify"
 )
 
+var errInsecureUnused = E.New("tls: insecure unused")
+
 type STDServerConfig struct {
 	config          *tls.Config
 	logger          log.Logger
@@ -26,6 +28,14 @@ type STDServerConfig struct {
 	watcher         *fsnotify.Watcher
 }
 
+func (c *STDServerConfig) ServerName() string {
+	return c.config.ServerName
+}
+
+func (c *STDServerConfig) SetServerName(serverName string) {
+	c.config.ServerName = serverName
+}
+
 func (c *STDServerConfig) NextProtos() []string {
 	return c.config.NextProtos
 }
@@ -34,9 +44,119 @@ func (c *STDServerConfig) SetNextProtos(nextProto []string) {
 	c.config.NextProtos = nextProto
 }
 
-var errInsecureUnused = E.New("tls: insecure unused")
+func (c *STDServerConfig) Config() (*STDConfig, error) {
+	return c.config, nil
+}
 
-func newSTDServer(ctx context.Context, logger log.Logger, options option.InboundTLSOptions) (ServerConfig, error) {
+func (c *STDServerConfig) Client(conn net.Conn) Conn {
+	return tls.Client(conn, c.config)
+}
+
+func (c *STDServerConfig) Server(conn net.Conn) Conn {
+	return tls.Server(conn, c.config)
+}
+
+func (c *STDServerConfig) Clone() Config {
+	return &STDServerConfig{
+		config: c.config.Clone(),
+	}
+}
+
+func (c *STDServerConfig) Start() error {
+	if c.acmeService != nil {
+		return c.acmeService.Start()
+	} else {
+		if c.certificatePath == "" && c.keyPath == "" {
+			return nil
+		}
+		err := c.startWatcher()
+		if err != nil {
+			c.logger.Warn("create fsnotify watcher: ", err)
+		}
+		return nil
+	}
+}
+
+func (c *STDServerConfig) startWatcher() error {
+	watcher, err := fsnotify.NewWatcher()
+	if err != nil {
+		return err
+	}
+	if c.certificatePath != "" {
+		err = watcher.Add(c.certificatePath)
+		if err != nil {
+			return err
+		}
+	}
+	if c.keyPath != "" {
+		err = watcher.Add(c.keyPath)
+		if err != nil {
+			return err
+		}
+	}
+	c.watcher = watcher
+	go c.loopUpdate()
+	return nil
+}
+
+func (c *STDServerConfig) loopUpdate() {
+	for {
+		select {
+		case event, ok := <-c.watcher.Events:
+			if !ok {
+				return
+			}
+			if event.Op&fsnotify.Write != fsnotify.Write {
+				continue
+			}
+			err := c.reloadKeyPair()
+			if err != nil {
+				c.logger.Error(E.Cause(err, "reload TLS key pair"))
+			}
+		case err, ok := <-c.watcher.Errors:
+			if !ok {
+				return
+			}
+			c.logger.Error(E.Cause(err, "fsnotify error"))
+		}
+	}
+}
+
+func (c *STDServerConfig) reloadKeyPair() error {
+	if c.certificatePath != "" {
+		certificate, err := os.ReadFile(c.certificatePath)
+		if err != nil {
+			return E.Cause(err, "reload certificate from ", c.certificatePath)
+		}
+		c.certificate = certificate
+	}
+	if c.keyPath != "" {
+		key, err := os.ReadFile(c.keyPath)
+		if err != nil {
+			return E.Cause(err, "reload key from ", c.keyPath)
+		}
+		c.key = key
+	}
+	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
+}
+
+func (c *STDServerConfig) Close() error {
+	if c.acmeService != nil {
+		return c.acmeService.Close()
+	}
+	if c.watcher != nil {
+		return c.watcher.Close()
+	}
+	return nil
+}
+
+func NewSTDServer(ctx context.Context, logger log.Logger, options option.InboundTLSOptions) (ServerConfig, error) {
 	if !options.Enabled {
 		return nil, nil
 	}
@@ -136,109 +256,3 @@ func newSTDServer(ctx context.Context, logger log.Logger, options option.Inbound
 		keyPath:         options.KeyPath,
 	}, nil
 }
-
-func (c *STDServerConfig) Config() (*STDConfig, error) {
-	return c.config, nil
-}
-
-func (c *STDServerConfig) Client(conn net.Conn) Conn {
-	return tls.Client(conn, c.config)
-}
-
-func (c *STDServerConfig) Server(conn net.Conn) Conn {
-	return tls.Server(conn, c.config)
-}
-
-func (c *STDServerConfig) Start() error {
-	if c.acmeService != nil {
-		return c.acmeService.Start()
-	} else {
-		if c.certificatePath == "" && c.keyPath == "" {
-			return nil
-		}
-		err := c.startWatcher()
-		if err != nil {
-			c.logger.Warn("create fsnotify watcher: ", err)
-		}
-		return nil
-	}
-}
-
-func (c *STDServerConfig) startWatcher() error {
-	watcher, err := fsnotify.NewWatcher()
-	if err != nil {
-		return err
-	}
-	if c.certificatePath != "" {
-		err = watcher.Add(c.certificatePath)
-		if err != nil {
-			return err
-		}
-	}
-	if c.keyPath != "" {
-		err = watcher.Add(c.keyPath)
-		if err != nil {
-			return err
-		}
-	}
-	c.watcher = watcher
-	go c.loopUpdate()
-	return nil
-}
-
-func (c *STDServerConfig) loopUpdate() {
-	for {
-		select {
-		case event, ok := <-c.watcher.Events:
-			if !ok {
-				return
-			}
-			if event.Op&fsnotify.Write != fsnotify.Write {
-				continue
-			}
-			err := c.reloadKeyPair()
-			if err != nil {
-				c.logger.Error(E.Cause(err, "reload TLS key pair"))
-			}
-		case err, ok := <-c.watcher.Errors:
-			if !ok {
-				return
-			}
-			c.logger.Error(E.Cause(err, "fsnotify error"))
-		}
-	}
-}
-
-func (c *STDServerConfig) reloadKeyPair() error {
-	if c.certificatePath != "" {
-		certificate, err := os.ReadFile(c.certificatePath)
-		if err != nil {
-			return E.Cause(err, "reload certificate from ", c.certificatePath)
-		}
-		c.certificate = certificate
-	}
-	if c.keyPath != "" {
-		key, err := os.ReadFile(c.keyPath)
-		if err != nil {
-			return E.Cause(err, "reload key from ", c.keyPath)
-		}
-		c.key = key
-	}
-	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
-}
-
-func (c *STDServerConfig) Close() error {
-	if c.acmeService != nil {
-		return c.acmeService.Close()
-	}
-	if c.watcher != nil {
-		return c.watcher.Close()
-	}
-	return nil
-}

common/tls/utls_client.go

@@ -3,7 +3,6 @@
 package tls
 
 import (
-	"context"
 	"crypto/tls"
 	"crypto/x509"
 	"net"
@@ -17,35 +16,39 @@ import (
 	utls "github.com/refraction-networking/utls"
 )
 
-type utlsClientConfig struct {
+type UTLSClientConfig struct {
 	config *utls.Config
 	id     utls.ClientHelloID
 }
 
-func (e *utlsClientConfig) NextProtos() []string {
+func (e *UTLSClientConfig) ServerName() string {
+	return e.config.ServerName
+}
+
+func (e *UTLSClientConfig) SetServerName(serverName string) {
+	e.config.ServerName = serverName
+}
+
+func (e *UTLSClientConfig) NextProtos() []string {
 	return e.config.NextProtos
 }
 
-func (e *utlsClientConfig) SetNextProtos(nextProto []string) {
+func (e *UTLSClientConfig) SetNextProtos(nextProto []string) {
 	e.config.NextProtos = nextProto
 }
 
-func (e *utlsClientConfig) Config() (*STDConfig, error) {
+func (e *UTLSClientConfig) Config() (*STDConfig, error) {
 	return nil, E.New("unsupported usage for uTLS")
 }
 
-func (e *utlsClientConfig) Client(conn net.Conn) Conn {
-	return &utlsConnWrapper{utls.UClient(conn, e.config, e.id)}
+func (e *UTLSClientConfig) Client(conn net.Conn) Conn {
+	return &utlsConnWrapper{utls.UClient(conn, e.config.Clone(), e.id)}
 }
 
 type utlsConnWrapper struct {
 	*utls.UConn
 }
 
-func (c *utlsConnWrapper) HandshakeContext(ctx context.Context) error {
-	return c.UConn.Handshake()
-}
-
 func (c *utlsConnWrapper) ConnectionState() tls.ConnectionState {
 	state := c.Conn.ConnectionState()
 	return tls.ConnectionState{
@@ -64,7 +67,14 @@ func (c *utlsConnWrapper) ConnectionState() tls.ConnectionState {
 	}
 }
 
-func newUTLSClient(router adapter.Router, serverAddress string, options option.OutboundTLSOptions) (Config, error) {
+func (e *UTLSClientConfig) Clone() Config {
+	return &UTLSClientConfig{
+		config: e.config.Clone(),
+		id:     e.id,
+	}
+}
+
+func NewUTLSClient(router adapter.Router, serverAddress string, options option.OutboundTLSOptions) (Config, error) {
 	var serverName string
 	if options.ServerName != "" {
 		serverName = options.ServerName
@@ -140,6 +150,14 @@ func newUTLSClient(router adapter.Router, serverAddress string, options option.O
 		id = utls.HelloChrome_Auto
 	case "firefox":
 		id = utls.HelloFirefox_Auto
+	case "edge":
+		id = utls.HelloEdge_Auto
+	case "safari":
+		id = utls.HelloSafari_Auto
+	case "360":
+		id = utls.Hello360_Auto
+	case "qq":
+		id = utls.HelloQQ_Auto
 	case "ios":
 		id = utls.HelloIOS_Auto
 	case "android":
@@ -149,5 +167,5 @@ func newUTLSClient(router adapter.Router, serverAddress string, options option.O
 	default:
 		return nil, E.New("unknown uTLS fingerprint: ", options.UTLS.Fingerprint)
 	}
-	return &utlsClientConfig{&tlsConfig, id}, nil
+	return &UTLSClientConfig{&tlsConfig, id}, nil
 }

common/tls/utls_stub.go

@@ -8,6 +8,6 @@ import (
 	E "github.com/sagernet/sing/common/exceptions"
 )
 
-func newUTLSClient(router adapter.Router, serverAddress string, options option.OutboundTLSOptions) (Config, error) {
+func NewUTLSClient(router adapter.Router, serverAddress string, options option.OutboundTLSOptions) (Config, error) {
 	return nil, E.New(`uTLS is not included in this build, rebuild with -tags with_utls`)
 }

common/trafficcontrol/manager.go

@@ -1,145 +0,0 @@
-package trafficcontrol
-
-import (
-	"io"
-	"net"
-	"sync"
-	"sync/atomic"
-
-	"github.com/sagernet/sing/common/buf"
-	"github.com/sagernet/sing/common/bufio"
-	M "github.com/sagernet/sing/common/metadata"
-	N "github.com/sagernet/sing/common/network"
-)
-
-type Manager[U comparable] struct {
-	access sync.Mutex
-	users  map[U]*Traffic
-}
-
-type Traffic struct {
-	Upload   uint64
-	Download uint64
-}
-
-func NewManager[U comparable]() *Manager[U] {
-	return &Manager[U]{
-		users: make(map[U]*Traffic),
-	}
-}
-
-func (m *Manager[U]) Reset() {
-	m.users = make(map[U]*Traffic)
-}
-
-func (m *Manager[U]) TrackConnection(user U, conn net.Conn) net.Conn {
-	m.access.Lock()
-	defer m.access.Unlock()
-	var traffic *Traffic
-	if t, loaded := m.users[user]; loaded {
-		traffic = t
-	} else {
-		traffic = new(Traffic)
-		m.users[user] = traffic
-	}
-	return &TrackConn{conn, traffic}
-}
-
-func (m *Manager[U]) TrackPacketConnection(user U, conn N.PacketConn) N.PacketConn {
-	m.access.Lock()
-	defer m.access.Unlock()
-	var traffic *Traffic
-	if t, loaded := m.users[user]; loaded {
-		traffic = t
-	} else {
-		traffic = new(Traffic)
-		m.users[user] = traffic
-	}
-	return &TrackPacketConn{conn, traffic}
-}
-
-func (m *Manager[U]) ReadTraffics() map[U]Traffic {
-	m.access.Lock()
-	defer m.access.Unlock()
-
-	trafficMap := make(map[U]Traffic)
-	for user, traffic := range m.users {
-		upload := atomic.SwapUint64(&traffic.Upload, 0)
-		download := atomic.SwapUint64(&traffic.Download, 0)
-		if upload == 0 && download == 0 {
-			continue
-		}
-		trafficMap[user] = Traffic{
-			Upload:   upload,
-			Download: download,
-		}
-	}
-	return trafficMap
-}
-
-type TrackConn struct {
-	net.Conn
-	*Traffic
-}
-
-func (c *TrackConn) Read(p []byte) (n int, err error) {
-	n, err = c.Conn.Read(p)
-	if n > 0 {
-		atomic.AddUint64(&c.Upload, uint64(n))
-	}
-	return
-}
-
-func (c *TrackConn) Write(p []byte) (n int, err error) {
-	n, err = c.Conn.Write(p)
-	if n > 0 {
-		atomic.AddUint64(&c.Download, uint64(n))
-	}
-	return
-}
-
-func (c *TrackConn) WriteTo(w io.Writer) (n int64, err error) {
-	n, err = bufio.Copy(w, c.Conn)
-	if n > 0 {
-		atomic.AddUint64(&c.Upload, uint64(n))
-	}
-	return
-}
-
-func (c *TrackConn) ReadFrom(r io.Reader) (n int64, err error) {
-	n, err = bufio.Copy(c.Conn, r)
-	if n > 0 {
-		atomic.AddUint64(&c.Download, uint64(n))
-	}
-	return
-}
-
-func (c *TrackConn) Upstream() any {
-	return c.Conn
-}
-
-type TrackPacketConn struct {
-	N.PacketConn
-	*Traffic
-}
-
-func (c *TrackPacketConn) ReadPacket(buffer *buf.Buffer) (M.Socksaddr, error) {
-	destination, err := c.PacketConn.ReadPacket(buffer)
-	if err == nil {
-		atomic.AddUint64(&c.Upload, uint64(buffer.Len()))
-	}
-	return destination, err
-}
-
-func (c *TrackPacketConn) WritePacket(buffer *buf.Buffer, destination M.Socksaddr) error {
-	n := buffer.Len()
-	err := c.PacketConn.WritePacket(buffer, destination)
-	if err == nil {
-		atomic.AddUint64(&c.Download, uint64(n))
-	}
-	return err
-}
-
-func (c *TrackPacketConn) Upstream() any {
-	return c.PacketConn
-}

constant/version.go

@@ -1,3 +1,3 @@
 package constant
 
-var Version = "1.1-beta10"
+var Version = "1.1-beta17"

docs/changelog.md

@@ -1,3 +1,80 @@
+#### 1.1-beta17
+
+* Fix shadowtls server **1**
+
+*1*:
+
+Added [fallback_after](/configuration/inbound/shadowtls#fallback_after) options.
+
+#### 1.0.7
+
+* Add support for new x/h2 deadline
+* Fix copy pipe
+* Fix decrypt xplus packet
+* Fix macOS Ventura process name match
+* Fix smux keepalive
+* Fix vmess request buffer
+* Fix h2c transport
+* Fix tor geoip
+* Fix udp connect for mux client
+* Fix default dns transport strategy
+
+#### 1.1-beta16
+
+* Improve shadowtls server
+* Fix default dns transport strategy
+* Update uTLS to v1.2.0
+
+#### 1.1-beta15
+
+* Add support for new x/h2 deadline
+* Fix udp connect for mux client
+* Fix dns buffer
+* Fix quic dns retry
+* Fix create TLS config
+* Fix websocket alpn
+* Fix tor geoip
+
+#### 1.1-beta14
+
+* Add multi-user support for hysteria inbound **1**
+* Add custom tls client support for std grpc
+* Fix smux keep alive
+* Fix vmess request buffer
+* Fix default local DNS server behavior
+* Fix h2c transport
+
+*1*:
+
+The `auth` and `auth_str` fields have been replaced by the `users` field.
+
+#### 1.1-beta13
+
+* Add custom worker count option for WireGuard outbound
+* Split bind_address into ipv4 and ipv6
+* Move WFP manipulation to strict route
+* Fix WireGuard outbound panic when close
+* Fix macOS Ventura process name match
+* Fix QUIC connection migration by @HyNetwork
+* Fix handling QUIC client SNI by @HyNetwork
+
+#### 1.1-beta12
+
+* Fix uTLS config
+* Update quic-go to v0.30.0
+* Update cloudflare-tls to go1.18.7
+
+#### 1.1-beta11
+
+* Add option for custom wireguard reserved bytes
+* Fix shadowtls v2
+* Fix h3 dns transport
+* Fix copy pipe
+* Fix decrypt xplus packet
+* Fix v2ray api
+* Suppress no network error
+* Improve local dns transport
+
 #### 1.1-beta10
 
 * Add [sniff_timeout](/configuration/shared/listen#sniff_timeout) listen option
@@ -41,7 +118,8 @@ The `strict_route` on windows is removed.
 
 **2**:
 
-See [ShadowTLS inbound](/configuration/inbound/shadowtls#version) and [ShadowTLS outbound](/configuration/outbound/shadowtls#version)
+See [ShadowTLS inbound](/configuration/inbound/shadowtls#version)
+and [ShadowTLS outbound](/configuration/outbound/shadowtls#version)
 
 #### 1.1-beta8
 

docs/configuration/inbound/hysteria.md

@@ -12,8 +12,15 @@
   "down": "100 Mbps",
   "down_mbps": 100,
   "obfs": "fuck me till the daylight",
-  "auth": "",
-  "auth_str": "password",
+
+  "users": [
+    {
+      "name": "sekai",
+      "auth": "",
+      "auth_str": "password"
+    }
+  ],
+  
   "recv_window_conn": 0,
   "recv_window_client": 0,
   "max_conn_client": 0,
@@ -61,11 +68,19 @@ Supported units (case sensitive, b = bits, B = bytes, 8b=1B):
 
 Obfuscated password.
 
-#### auth
+#### users
+
+Hysteria users
+
+#### users.auth
+
+==Required if `auth_str` is empty==
 
 Authentication password, in base64.
 
-#### auth_str
+#### users.auth_str
+
+==Required if `auth` is empty==
 
 Authentication password.
 

docs/configuration/inbound/hysteria.zh.md

@@ -12,8 +12,15 @@
   "down": "100 Mbps",
   "down_mbps": 100,
   "obfs": "fuck me till the daylight",
-  "auth": "",
-  "auth_str": "password",
+
+  "users": [
+    {
+      "name": "sekai",
+      "auth": "",
+      "auth_str": "password"
+    }
+  ],
+
   "recv_window_conn": 0,
   "recv_window_client": 0,
   "max_conn_client": 0,
@@ -61,11 +68,19 @@
 
 混淆密码。
 
-#### auth
+#### users
+
+Hysteria 用户
+
+#### users.auth
+
+==与 auth_str 必填一个==
 
 base64 编码的认证密码。
 
-#### auth_str
+#### users.auth_str
+
+==与 auth 必填一个==
 
 认证密码。
 

docs/configuration/inbound/shadowtls.md

@@ -9,6 +9,7 @@
 
   "version": 2,
   "password": "fuck me till the daylight",
+  "fallback_after": 2,
   "handshake": {
     "server": "google.com",
     "server_port": 443,
@@ -39,6 +40,15 @@ Set password.
 
 Only available in the ShadowTLS v2 protocol.
 
+
+#### fallback_after
+
+Packet count before perform fallback.
+
+Default is 2.
+
+Lowering this may prevent TLS 1.3 connections, but reduces the risk of being actively probed.
+
 #### handshake
 
 ==Required==

docs/configuration/inbound/shadowtls.zh.md

@@ -9,6 +9,7 @@
 
   "version": 2,
   "password": "fuck me till the daylight",
+  "fallback_after": 2,
   "handshake": {
     "server": "google.com",
     "server_port": 443,
@@ -39,6 +40,14 @@ ShadowTLS 协议版本。
 
 仅在 ShadowTLS v2 协议中可用。
 
+#### fallback_after
+
+在执行回退之前的包计数。
+
+默认值为 2。
+
+降低此值可能会阻止 TLS 1.3 连接，但会降低被主动探测的风险。
+
 #### handshake
 
 ==必填==

docs/configuration/inbound/tun.md

@@ -93,16 +93,23 @@ Set the default route to the Tun.
 
 #### strict_route
 
-*In Linux*:
-
 Enforce strict routing rules when `auto_route` is enabled:
 
+*In Linux*:
+
 * Let unsupported network unreachable
 * Route all connections to tun
 
 It prevents address leaks and makes DNS hijacking work on Android and Linux with systemd-resolved, but your device will
 not be accessible by others.
 
+*In Windows*:
+
+* Add firewall rules to prevent DNS leak caused by
+  Windows' [ordinary multihomed DNS resolution behavior](https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-R2-and-2008/dd197552%28v%3Dws.10%29)
+
+It may prevent some applications (such as VirtualBox) from working properly in certain situations.
+
 #### inet4_route_address
 
 Use custom routes instead of default when `auto_route` is enabled.

docs/configuration/inbound/tun.zh.md

@@ -8,7 +8,6 @@
 {
   "type": "tun",
   "tag": "tun-in",
-
   "interface_name": "tun0",
   "inet4_address": "172.19.0.1/30",
   "inet6_address": "fdfe:dcba:9876::1/126",
@@ -47,8 +46,8 @@
   "exclude_package": [
     "com.android.captiveportallogin"
   ],
-
-  ... // 监听字段
+  ...
+  // 监听字段
 }
 ```
 
@@ -94,15 +93,23 @@ tun 接口的 IPv6 前缀。
 
 #### strict_route
 
-*在 Linux 中*:
-
 启用 `auto_route` 时执行严格的路由规则。
 
+*在 Linux 中*:
+
 * 让不支持的网络无法到达
 * 将所有连接路由到 tun
 
 它可以防止地址泄漏，并使 DNS 劫持在 Android 和使用 systemd-resolved 的 Linux 上工作，但你的设备将无法其他设备被访问。
 
+*在 Windows 中*:
+
+* 添加防火墙规则以阻止 Windows
+  的 [普通多宿主 DNS 解析行为](https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-R2-and-2008/dd197552%28v%3Dws.10%29)
+  造成的 DNS 泄露
+
+它可能会使某些应用程序（如 VirtualBox）在某些情况下无法正常工作。
+
 #### inet4_route_address
 
 启用 `auto_route` 时使用自定义路由而不是默认路由。

docs/configuration/outbound/wireguard.md

@@ -15,6 +15,8 @@
   "private_key": "YNXtAzepDqRv9H52osJVDQnznT5AM11eCK3ESpwSt04=",
   "peer_public_key": "Z1XXLsKYkYxuiYjJIkRvtIKFepCYHTgON+GwPq7SOV4=",
   "pre_shared_key": "31aIhAPwktDGpH4JDhA8GNvjFXEf/a6+UaQRyOAiyfM=",
+  "reserved": [0, 0, 0],
+  "workers": 4,
   "mtu": 1408,
   "network": "tcp",
 
@@ -83,9 +85,21 @@ WireGuard peer public key.
 
 WireGuard pre-shared key.
 
+#### reserved
+
+WireGuard reserved field bytes.
+
+#### workers
+
+WireGuard worker count.
+
+CPU count is used by default.
+
 #### mtu
 
-WireGuard MTU. 1408 will be used if empty.
+WireGuard MTU.
+
+1408 will be used if empty.
 
 #### network
 

docs/configuration/outbound/wireguard.zh.md

@@ -15,6 +15,8 @@
   "private_key": "YNXtAzepDqRv9H52osJVDQnznT5AM11eCK3ESpwSt04=",
   "peer_public_key": "Z1XXLsKYkYxuiYjJIkRvtIKFepCYHTgON+GwPq7SOV4=",
   "pre_shared_key": "31aIhAPwktDGpH4JDhA8GNvjFXEf/a6+UaQRyOAiyfM=",
+  "reserved": [0, 0, 0],
+  "workers": 4,
   "mtu": 1408,
   "network": "tcp",
 
@@ -85,9 +87,21 @@ WireGuard 对等公钥。
 
 WireGuard 预共享密钥。
 
+#### reserved
+
+WireGuard 保留字段字节。
+
+#### workers
+
+WireGuard worker 数量。
+
+默认使用 CPU 数量。
+
 #### mtu
 
-WireGuard MTU。 默认1408。
+WireGuard MTU。
+
+默认使用 1408。
 
 #### network
 

docs/configuration/shared/dial.md

@@ -4,7 +4,8 @@
 {
   "detour": "upstream-out",
   "bind_interface": "en0",
-  "bind_address": "0.0.0.0",
+  "inet4_bind_address": "0.0.0.0",
+  "inet6_bind_address": "::",
   "routing_mark": 1234,
   "reuse_addr": false,
   "connect_timeout": "5s",
@@ -17,9 +18,9 @@
 
 ### Fields
 
-| Field                                                                                                               | Available Context |
-|---------------------------------------------------------------------------------------------------------------------|-------------------|
-| `bind_interface` /`bind_address` /`routing_mark` /`reuse_addr` / `tcp_fast_open`/ `udp_fragment` /`connect_timeout` | `detour` not set  |
+| Field                                                                                                                | Available Context |
+|----------------------------------------------------------------------------------------------------------------------|-------------------|
+| `bind_interface` /`*bind_address` /`routing_mark` /`reuse_addr` / `tcp_fast_open`/ `udp_fragment` /`connect_timeout` | `detour` not set  |
 
 #### detour
 
@@ -29,9 +30,13 @@ The tag of the upstream outbound.
 
 The network interface to bind to.
 
-#### bind_address
+#### inet4_bind_address
 
-The address to bind to.
+The IPv4 address to bind to.
+
+#### inet6_bind_address
+
+The IPv6 address to bind to.
 
 #### routing_mark
 

docs/configuration/shared/dial.zh.md

@@ -4,7 +4,8 @@
 {
   "detour": "upstream-out",
   "bind_interface": "en0",
-  "bind_address": "0.0.0.0",
+  "inet4_bind_address": "0.0.0.0",
+  "inet6_bind_address": "::",
   "routing_mark": 1234,
   "reuse_addr": false,
   "connect_timeout": "5s",
@@ -17,9 +18,9 @@
 
 ### 字段
 
-| 字段                                                                                                                  | 可用上下文        |
-|---------------------------------------------------------------------------------------------------------------------|--------------|
-| `bind_interface` /`bind_address` /`routing_mark` /`reuse_addr` / `tcp_fast_open`/ `udp_fragment` /`connect_timeout` | `detour` 未设置 |
+| 字段                                                                                                                   | 可用上下文        |
+|----------------------------------------------------------------------------------------------------------------------|--------------|
+| `bind_interface` /`*bind_address` /`routing_mark` /`reuse_addr` / `tcp_fast_open`/ `udp_fragment` /`connect_timeout` | `detour` 未设置 |
 
 
 #### detour
@@ -32,9 +33,13 @@
 
 要绑定到的网络接口。
 
-#### bind_address
+#### inet4_bind_address
 
-要绑定的地址。
+要绑定的 IPv4 地址。
+
+#### inet6_bind_address
+
+要绑定的 IPv6 地址。
 
 #### routing_mark
 

docs/configuration/shared/tls.md

@@ -192,10 +192,15 @@ Available fingerprint values:
 
 * chrome
 * firefox
+* edge
+* safari
+* 360
+* qq
 * ios
 * android
 * random
 
+Chrome fingerprint will be used if empty.
 
 ### ACME Fields
 

docs/configuration/shared/tls.zh.md

@@ -192,10 +192,16 @@ uTLS 是 "crypto/tls" 的一个分支，它提供了 ClientHello 指纹识别阻
 
 * chrome
 * firefox
+* edge
+* safari
+* 360
+* qq
 * ios
 * android
 * random
 
+默认使用 chrome 指纹。
+
 ### ACME 字段
 
 !!! warning ""

experimental/trackerconn/conn.go

@@ -1,7 +1,6 @@
 package trackerconn
 
 import (
-	"io"
 	"net"
 
 	"github.com/sagernet/sing/common/buf"
@@ -11,33 +10,25 @@ import (
 	"go.uber.org/atomic"
 )
 
-func New(conn net.Conn, readCounter *atomic.Int64, writeCounter *atomic.Int64, direct bool) N.ExtendedConn {
-	trackerConn := &Conn{bufio.NewExtendedConn(conn), readCounter, writeCounter}
-	if direct {
-		return (*DirectConn)(trackerConn)
-	} else {
-		return trackerConn
-	}
+func New(conn net.Conn, readCounter []*atomic.Int64, writeCounter []*atomic.Int64, direct bool) *Conn {
+	return &Conn{bufio.NewExtendedConn(conn), readCounter, writeCounter}
 }
 
-func NewHook(conn net.Conn, readCounter func(n int64), writeCounter func(n int64), direct bool) N.ExtendedConn {
-	trackerConn := &HookConn{bufio.NewExtendedConn(conn), readCounter, writeCounter}
-	if direct {
-		return (*DirectHookConn)(trackerConn)
-	} else {
-		return trackerConn
-	}
+func NewHook(conn net.Conn, readCounter func(n int64), writeCounter func(n int64), direct bool) *HookConn {
+	return &HookConn{bufio.NewExtendedConn(conn), readCounter, writeCounter}
 }
 
 type Conn struct {
 	N.ExtendedConn
-	readCounter  *atomic.Int64
-	writeCounter *atomic.Int64
+	readCounter  []*atomic.Int64
+	writeCounter []*atomic.Int64
 }
 
 func (c *Conn) Read(p []byte) (n int, err error) {
 	n, err = c.ExtendedConn.Read(p)
-	c.readCounter.Add(int64(n))
+	for _, counter := range c.readCounter {
+		counter.Add(int64(n))
+	}
 	return n, err
 }
 
@@ -46,13 +37,17 @@ func (c *Conn) ReadBuffer(buffer *buf.Buffer) error {
 	if err != nil {
 		return err
 	}
-	c.readCounter.Add(int64(buffer.Len()))
+	for _, counter := range c.readCounter {
+		counter.Add(int64(buffer.Len()))
+	}
 	return nil
 }
 
 func (c *Conn) Write(p []byte) (n int, err error) {
 	n, err = c.ExtendedConn.Write(p)
-	c.writeCounter.Add(int64(n))
+	for _, counter := range c.writeCounter {
+		counter.Add(int64(n))
+	}
 	return n, err
 }
 
@@ -62,7 +57,9 @@ func (c *Conn) WriteBuffer(buffer *buf.Buffer) error {
 	if err != nil {
 		return err
 	}
-	c.writeCounter.Add(dataLen)
+	for _, counter := range c.writeCounter {
+		counter.Add(dataLen)
+	}
 	return nil
 }
 
@@ -110,51 +107,3 @@ func (c *HookConn) WriteBuffer(buffer *buf.Buffer) error {
 func (c *HookConn) Upstream() any {
 	return c.ExtendedConn
 }
-
-type DirectConn Conn
-
-func (c *DirectConn) WriteTo(w io.Writer) (n int64, err error) {
-	reader := N.UnwrapReader(c.ExtendedConn)
-	if wt, ok := reader.(io.WriterTo); ok {
-		n, err = wt.WriteTo(w)
-		c.readCounter.Add(n)
-		return
-	} else {
-		return bufio.Copy(w, (*Conn)(c))
-	}
-}
-
-func (c *DirectConn) ReadFrom(r io.Reader) (n int64, err error) {
-	writer := N.UnwrapWriter(c.ExtendedConn)
-	if rt, ok := writer.(io.ReaderFrom); ok {
-		n, err = rt.ReadFrom(r)
-		c.writeCounter.Add(n)
-		return
-	} else {
-		return bufio.Copy((*Conn)(c), r)
-	}
-}
-
-type DirectHookConn HookConn
-
-func (c *DirectHookConn) WriteTo(w io.Writer) (n int64, err error) {
-	reader := N.UnwrapReader(c.ExtendedConn)
-	if wt, ok := reader.(io.WriterTo); ok {
-		n, err = wt.WriteTo(w)
-		c.readCounter(n)
-		return
-	} else {
-		return bufio.Copy(w, (*HookConn)(c))
-	}
-}
-
-func (c *DirectHookConn) ReadFrom(r io.Reader) (n int64, err error) {
-	writer := N.UnwrapWriter(c.ExtendedConn)
-	if rt, ok := writer.(io.ReaderFrom); ok {
-		n, err = rt.ReadFrom(r)
-		c.writeCounter(n)
-		return
-	} else {
-		return bufio.Copy((*HookConn)(c), r)
-	}
-}

experimental/trackerconn/packet_conn.go

@@ -8,7 +8,7 @@ import (
 	"go.uber.org/atomic"
 )
 
-func NewPacket(conn N.PacketConn, readCounter *atomic.Int64, writeCounter *atomic.Int64) *PacketConn {
+func NewPacket(conn N.PacketConn, readCounter []*atomic.Int64, writeCounter []*atomic.Int64) *PacketConn {
 	return &PacketConn{conn, readCounter, writeCounter}
 }
 
@@ -18,14 +18,16 @@ func NewHookPacket(conn N.PacketConn, readCounter func(n int64), writeCounter fu
 
 type PacketConn struct {
 	N.PacketConn
-	readCounter  *atomic.Int64
-	writeCounter *atomic.Int64
+	readCounter  []*atomic.Int64
+	writeCounter []*atomic.Int64
 }
 
 func (c *PacketConn) ReadPacket(buffer *buf.Buffer) (destination M.Socksaddr, err error) {
 	destination, err = c.PacketConn.ReadPacket(buffer)
 	if err == nil {
-		c.readCounter.Add(int64(buffer.Len()))
+		for _, counter := range c.readCounter {
+			counter.Add(int64(buffer.Len()))
+		}
 	}
 	return
 }
@@ -36,7 +38,9 @@ func (c *PacketConn) WritePacket(buffer *buf.Buffer, destination M.Socksaddr) er
 	if err != nil {
 		return err
 	}
-	c.writeCounter.Add(dataLen)
+	for _, counter := range c.writeCounter {
+		counter.Add(dataLen)
+	}
 	return nil
 }
 

experimental/v2rayapi/stats.go

@@ -58,8 +58,8 @@ func NewStatsService(options option.V2RayStatsServiceOptions) *StatsService {
 }
 
 func (s *StatsService) RoutedConnection(inbound string, outbound string, conn net.Conn) net.Conn {
-	var readCounter *atomic.Int64
-	var writeCounter *atomic.Int64
+	var readCounter []*atomic.Int64
+	var writeCounter []*atomic.Int64
 	countInbound := inbound != "" && s.inbounds[inbound]
 	countOutbound := outbound != "" && s.outbounds[outbound]
 	if !countInbound && !countOutbound {
@@ -67,20 +67,20 @@ func (s *StatsService) RoutedConnection(inbound string, outbound string, conn ne
 	}
 	s.access.Lock()
 	if countInbound {
-		readCounter = s.loadOrCreateCounter("inbound>>>"+inbound+">>>traffic>>>uplink", readCounter)
-		writeCounter = s.loadOrCreateCounter("inbound>>>"+inbound+">>>traffic>>>downlink", writeCounter)
+		readCounter = append(readCounter, s.loadOrCreateCounter("inbound>>>"+inbound+">>>traffic>>>uplink"))
+		writeCounter = append(writeCounter, s.loadOrCreateCounter("inbound>>>"+inbound+">>>traffic>>>downlink"))
 	}
 	if countOutbound {
-		readCounter = s.loadOrCreateCounter("outbound>>>"+outbound+">>>traffic>>>uplink", readCounter)
-		writeCounter = s.loadOrCreateCounter("outbound>>>"+outbound+">>>traffic>>>downlink", writeCounter)
+		readCounter = append(readCounter, s.loadOrCreateCounter("outbound>>>"+outbound+">>>traffic>>>uplink"))
+		writeCounter = append(writeCounter, s.loadOrCreateCounter("outbound>>>"+outbound+">>>traffic>>>downlink"))
 	}
 	s.access.Unlock()
 	return trackerconn.New(conn, readCounter, writeCounter, s.directIO)
 }
 
 func (s *StatsService) RoutedPacketConnection(inbound string, outbound string, conn N.PacketConn) N.PacketConn {
-	var readCounter *atomic.Int64
-	var writeCounter *atomic.Int64
+	var readCounter []*atomic.Int64
+	var writeCounter []*atomic.Int64
 	countInbound := inbound != "" && s.inbounds[inbound]
 	countOutbound := outbound != "" && s.outbounds[outbound]
 	if !countInbound && !countOutbound {
@@ -88,12 +88,12 @@ func (s *StatsService) RoutedPacketConnection(inbound string, outbound string, c
 	}
 	s.access.Lock()
 	if countInbound {
-		readCounter = s.loadOrCreateCounter("inbound>>>"+inbound+">>>traffic>>>uplink", readCounter)
-		writeCounter = s.loadOrCreateCounter("inbound>>>"+inbound+">>>traffic>>>downlink", writeCounter)
+		readCounter = append(readCounter, s.loadOrCreateCounter("inbound>>>"+inbound+">>>traffic>>>uplink"))
+		writeCounter = append(writeCounter, s.loadOrCreateCounter("inbound>>>"+inbound+">>>traffic>>>downlink"))
 	}
 	if countOutbound {
-		readCounter = s.loadOrCreateCounter("outbound>>>"+outbound+">>>traffic>>>uplink", readCounter)
-		writeCounter = s.loadOrCreateCounter("outbound>>>"+outbound+">>>traffic>>>downlink", writeCounter)
+		readCounter = append(readCounter, s.loadOrCreateCounter("outbound>>>"+outbound+">>>traffic>>>uplink"))
+		writeCounter = append(writeCounter, s.loadOrCreateCounter("outbound>>>"+outbound+">>>traffic>>>downlink"))
 	}
 	s.access.Unlock()
 	return trackerconn.NewPacket(conn, readCounter, writeCounter)
@@ -119,7 +119,17 @@ func (s *StatsService) QueryStats(ctx context.Context, request *QueryStatsReques
 	var response QueryStatsResponse
 	s.access.Lock()
 	defer s.access.Unlock()
-	if request.Regexp {
+	if len(request.Patterns) == 0 {
+		for name, counter := range s.counters {
+			var value int64
+			if request.Reset_ {
+				value = counter.Swap(0)
+			} else {
+				value = counter.Load()
+			}
+			response.Stat = append(response.Stat, &Stat{Name: name, Value: value})
+		}
+	} else if request.Regexp {
 		matchers := make([]*regexp.Regexp, 0, len(request.Patterns))
 		for _, pattern := range request.Patterns {
 			matcher, err := regexp.Compile(pattern)
@@ -182,13 +192,12 @@ func (s *StatsService) mustEmbedUnimplementedStatsServiceServer() {
 }
 
 //nolint:staticcheck
-func (s *StatsService) loadOrCreateCounter(name string, counter *atomic.Int64) *atomic.Int64 {
+func (s *StatsService) loadOrCreateCounter(name string) *atomic.Int64 {
 	counter, loaded := s.counters[name]
-	if !loaded {
-		if counter == nil {
-			counter = atomic.NewInt64(0)
-		}
-		s.counters[name] = counter
+	if loaded {
+		return counter
 	}
+	counter = atomic.NewInt64(0)
+	s.counters[name] = counter
 	return counter
 }

go.mod

@@ -4,9 +4,8 @@ go 1.18
 
 require (
 	berty.tech/go-libtor v1.0.385
-	github.com/Dreamacro/clash v1.11.8
+	github.com/Dreamacro/clash v1.11.12
 	github.com/caddyserver/certmagic v0.17.2
-	github.com/cloudflare/circl v1.2.1-0.20220831060716-4cf0150356fc
 	github.com/cretz/bine v0.2.0
 	github.com/database64128/tfo-go/v2 v2.0.2
 	github.com/dustin/go-humanize v1.0.0
@@ -14,32 +13,34 @@ require (
 	github.com/go-chi/chi/v5 v5.0.7
 	github.com/go-chi/cors v1.2.1
 	github.com/go-chi/render v1.0.2
-	github.com/gofrs/uuid v4.3.0+incompatible
+	github.com/gofrs/uuid v4.3.1+incompatible
 	github.com/hashicorp/yamux v0.1.1
 	github.com/logrusorgru/aurora v2.0.3+incompatible
 	github.com/mholt/acmez v1.0.4
 	github.com/miekg/dns v1.1.50
 	github.com/oschwald/maxminddb-golang v1.10.0
 	github.com/pires/go-proxyproto v0.6.2
-	github.com/refraction-networking/utls v1.1.5
-	github.com/sagernet/quic-go v0.0.0-20220818150011-de611ab3e2bb
+	github.com/refraction-networking/utls v1.2.0
+	github.com/sagernet/cloudflare-tls v0.0.0-20221031050923-d70792f4c3a0
+	github.com/sagernet/quic-go v0.0.0-20221108053023-645bcc4f9b15
 	github.com/sagernet/sing v0.0.0-20221008120626-60a9910eefe4
-	github.com/sagernet/sing-dns v0.0.0-20220929010544-ee843807aae3
+	github.com/sagernet/sing-dns v0.0.0-20221113031420-c6aaf2ea4b10
 	github.com/sagernet/sing-shadowsocks v0.0.0-20220819002358-7461bb09a8f6
-	github.com/sagernet/sing-tun v0.0.0-20221012082254-488c3b75f6fd
-	github.com/sagernet/sing-vmess v0.0.0-20220925083655-063bc85ea685
+	github.com/sagernet/sing-tun v0.0.0-20221104121441-66c48a57776f
+	github.com/sagernet/sing-vmess v0.0.0-20221109021549-b446d5bdddf0
 	github.com/sagernet/smux v0.0.0-20220831015742-e0f1988e3195
 	github.com/sagernet/websocket v0.0.0-20220913015213-615516348b4e
-	github.com/spf13/cobra v1.6.0
-	github.com/stretchr/testify v1.8.0
+	github.com/sagernet/wireguard-go v0.0.0-20221116151939-c99467f53f2c
+	github.com/spf13/cobra v1.6.1
+	github.com/stretchr/testify v1.8.1
 	go.etcd.io/bbolt v1.3.6
 	go.uber.org/atomic v1.10.0
 	go4.org/netipx v0.0.0-20220925034521-797b0c90d8ab
-	golang.org/x/crypto v0.0.0-20221012134737-56aed061732a
-	golang.org/x/net v0.0.0-20221017152216-f25eb7ecb193
-	golang.org/x/sys v0.1.0
-	golang.zx2c4.com/wireguard v0.0.0-20220829161405-d1d08426b27b
-	google.golang.org/grpc v1.50.1
+	golang.org/x/crypto v0.3.0
+	golang.org/x/exp v0.0.0-20221028150844-83b7d23a625f
+	golang.org/x/net v0.2.0
+	golang.org/x/sys v0.2.0
+	google.golang.org/grpc v1.51.0
 	google.golang.org/protobuf v1.28.1
 	gvisor.dev/gvisor v0.0.0-20220901235040-6ca97ef2ce1c
 )
@@ -49,20 +50,17 @@ require (
 require (
 	github.com/ajg/form v1.5.1 // indirect
 	github.com/andybalholm/brotli v1.0.4 // indirect
+	github.com/cloudflare/circl v1.2.1-0.20221019164342-6ab4dfed8f3c // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0 // indirect
-	github.com/golang/mock v1.6.0 // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/google/btree v1.0.1 // indirect
 	github.com/inconshreveable/mousetrap v1.0.1 // indirect
-	github.com/klauspost/compress v1.15.9 // indirect
+	github.com/klauspost/compress v1.15.12 // indirect
 	github.com/klauspost/cpuid/v2 v2.1.1 // indirect
 	github.com/libdns/libdns v0.2.1 // indirect
-	github.com/marten-seemann/qpack v0.2.1 // indirect
-	github.com/marten-seemann/qtls-go1-18 v0.1.2 // indirect
-	github.com/marten-seemann/qtls-go1-19 v0.1.0 // indirect
-	github.com/nxadm/tail v1.4.8 // indirect
-	github.com/onsi/ginkgo v1.16.5 // indirect
+	github.com/marten-seemann/qpack v0.3.0 // indirect
+	github.com/marten-seemann/qtls-go1-18 v0.1.3 // indirect
+	github.com/marten-seemann/qtls-go1-19 v0.1.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/sagernet/abx-go v0.0.0-20220819185957-dba1257d738e // indirect
 	github.com/sagernet/go-tun2socks v1.16.12-0.20220818015926-16cb67876a61 // indirect
@@ -71,14 +69,11 @@ require (
 	github.com/vishvananda/netns v0.0.0-20211101163701-50045581ed74 // indirect
 	go.uber.org/multierr v1.6.0 // indirect
 	go.uber.org/zap v1.23.0 // indirect
-	golang.org/x/exp v0.0.0-20220722155223-a9213eeb770e // indirect
-	golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4 // indirect
-	golang.org/x/text v0.3.7 // indirect
+	golang.org/x/mod v0.6.0 // indirect
+	golang.org/x/text v0.4.0 // indirect
 	golang.org/x/time v0.0.0-20191024005414-555d28b269f0 // indirect
-	golang.org/x/tools v0.1.11-0.20220513221640-090b14e8501f // indirect
-	golang.zx2c4.com/wintun v0.0.0-20211104114900-415007cec224 // indirect
+	golang.org/x/tools v0.2.0 // indirect
 	google.golang.org/genproto v0.0.0-20210722135532-667f2b7c528f // indirect
-	gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 	lukechampine.com/blake3 v1.1.7 // indirect
 )

go.sum

@@ -3,8 +3,8 @@ berty.tech/go-libtor v1.0.385/go.mod h1:9swOOQVb+kmvuAlsgWUK/4c52pm69AdbJsxLzk+f
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/Dreamacro/clash v1.11.8 h1:t/sy3/tiihRlvV3SsliYFjj8rKpbLw5IJ2PymiHcwS8=
-github.com/Dreamacro/clash v1.11.8/go.mod h1:LsWCcJFoKuL1C5F2c0m/1690wihTHYSU3J+im09yTwQ=
+github.com/Dreamacro/clash v1.11.12 h1:zJ+FUWPHWxhfNl5MK64oezFAPPyGth+SDhjuWEJ/jwM=
+github.com/Dreamacro/clash v1.11.12/go.mod h1:WiRGFHBrOUYP89GXJ9k4KCyZq5i485LWzc4FPsEPlMI=
 github.com/ajg/form v1.5.1 h1:t9c7v8JUKu/XxOGBU0yjNpaMloxGEJhUkqFRq0ibGeU=
 github.com/ajg/form v1.5.1/go.mod h1:uL1WgH+h2mgNtvBq0339dVnzXdBETtL2LeUXaIv25UY=
 github.com/andybalholm/brotli v1.0.4 h1:V7DdXeJtZscaqfNuAdSRuRFzuiKlHSC/Zh3zl9qY3JY=
@@ -16,8 +16,8 @@ github.com/caddyserver/certmagic v0.17.2 h1:o30seC1T/dBqBCNNGNHWwj2i5/I/FMjBbTAh
 github.com/caddyserver/certmagic v0.17.2/go.mod h1:ouWUuC490GOLJzkyN35eXfV8bSbwMwSf4bdhkIxtdQE=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
-github.com/cloudflare/circl v1.2.1-0.20220831060716-4cf0150356fc h1:307gdRLiZ08dwOIKwc5lAQ19DRFaQQvdhHalyB4Asx8=
-github.com/cloudflare/circl v1.2.1-0.20220831060716-4cf0150356fc/go.mod h1:+CauBF6R70Jqcyl8N2hC8pAXYbWkGIezuSbuGLtRhnw=
+github.com/cloudflare/circl v1.2.1-0.20221019164342-6ab4dfed8f3c h1:K1VdSnBZiGapczwcUKnE1qcsMBclA84DUOD2NG/78VY=
+github.com/cloudflare/circl v1.2.1-0.20221019164342-6ab4dfed8f3c/go.mod h1:+CauBF6R70Jqcyl8N2hC8pAXYbWkGIezuSbuGLtRhnw=
 github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
 github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
 github.com/cncf/xds/go v0.0.0-20210312221358-fbca930ec8ed/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
@@ -38,8 +38,6 @@ github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1m
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@@ -195,67 +185,51 @@ golang.org/x/crypto v0.0.0-20190404164418-38d8ce5564a5/go.mod h1:WFFai1msRO1wXaE
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 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
+golang.org/x/text v0.4.0 h1:BrVqGRd7+k1DiOgtnFvAkoQEWQvBc25ouMJM6429SFg=
+golang.org/x/text v0.4.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/time v0.0.0-20191024005414-555d28b269f0 h1:/5xXl8Y5W96D+TtHSlonuFqGHIWVuyCkGJLwGh9JJFs=
 golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
@@ -287,20 +260,14 @@ golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3
 golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
-golang.org/x/tools v0.0.0-20201224043029-2b0845dc783e/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
-golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.6-0.20210726203631-07bc1bf47fb2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
-golang.org/x/tools v0.1.11-0.20220513221640-090b14e8501f h1:OKYpQQVE3DKSc3r3zHVzq46vq5YH7x8xpR3/k9ixmUg=
-golang.org/x/tools v0.1.11-0.20220513221640-090b14e8501f/go.mod h1:SgwaegtQh8clINPpECJMqnxLv9I09HLqnW3RMqW0CA4=
+golang.org/x/tools v0.2.0 h1:G6AHpWxTMGY1KyEYoAQ5WTtIekUUvDNjan3ugu60JvE=
+golang.org/x/tools v0.2.0/go.mod h1:y4OqIKeOV/fWJetJ8bXPU1sEVniLMIyDAZWeHdV+NTA=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.zx2c4.com/wintun v0.0.0-20211104114900-415007cec224 h1:Ug9qvr1myri/zFN6xL17LSCBGFDnphBBhzmILHsM5TY=
-golang.zx2c4.com/wintun v0.0.0-20211104114900-415007cec224/go.mod h1:deeaetjYA+DHMHg+sMSMI58GrEteJUUzzw7en6TJQcI=
-golang.zx2c4.com/wireguard v0.0.0-20220829161405-d1d08426b27b h1:qgrKnOfe1zyURRNdmDlGbN32i38Zjmw0B1+TMdHcOvg=
-golang.zx2c4.com/wireguard v0.0.0-20220829161405-d1d08426b27b/go.mod h1:6y4CqPAy54NwiN4nC8K+R1eMpQDB1P2d25qmunh2RSA=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
@@ -316,8 +283,8 @@ google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8
 google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTpR3n0=
 google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
 google.golang.org/grpc v1.39.0/go.mod h1:PImNr+rS9TWYb2O4/emRugxiyHZ5JyHW5F+RPnDzfrE=
-google.golang.org/grpc v1.50.1 h1:DS/BukOZWp8s6p4Dt/tOaJaTQyPyOoCcrjroHuCeLzY=
-google.golang.org/grpc v1.50.1/go.mod h1:ZgQEeidpAuNRZ8iRrlBKXZQP1ghovWIVhdJRyCDK+GI=
+google.golang.org/grpc v1.51.0 h1:E1eGv1FTqoLIdnBCZufiSHgKjlqG6fKFf6pPWtMTh8U=
+google.golang.org/grpc v1.51.0/go.mod h1:wgNDFcnuBGmxLKI/qn4T+m5BtEBYXJPvibbUPsAIPww=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@@ -335,15 +302,9 @@ google.golang.org/protobuf v1.28.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqw
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
-gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
-gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
-gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=

inbound/hysteria.go

@@ -3,7 +3,6 @@
 package inbound
 
 import (
-	"bytes"
 	"context"
 	"sync"
 
@@ -16,9 +15,13 @@ import (
 	"github.com/sagernet/sing-box/option"
 	"github.com/sagernet/sing-box/transport/hysteria"
 	"github.com/sagernet/sing/common"
+	"github.com/sagernet/sing/common/auth"
 	E "github.com/sagernet/sing/common/exceptions"
+	F "github.com/sagernet/sing/common/format"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
+
+	"golang.org/x/exp/slices"
 )
 
 var _ adapter.Inbound = (*Hysteria)(nil)
@@ -27,7 +30,8 @@ type Hysteria struct {
 	myInboundAdapter
 	quicConfig   *quic.Config
 	tlsConfig    tls.ServerConfig
-	authKey      []byte
+	authKey      []string
+	authUser     []string
 	xplusKey     []byte
 	sendBPS      uint64
 	recvBPS      uint64
@@ -60,12 +64,16 @@ func NewHysteria(ctx context.Context, router adapter.Router, logger log.ContextL
 	if quicConfig.MaxIncomingStreams == 0 {
 		quicConfig.MaxIncomingStreams = hysteria.DefaultMaxIncomingStreams
 	}
-	var auth []byte
-	if len(options.Auth) > 0 {
-		auth = options.Auth
-	} else {
-		auth = []byte(options.AuthString)
-	}
+	authKey := common.Map(options.Users, func(it option.HysteriaUser) string {
+		if len(it.Auth) > 0 {
+			return string(it.Auth)
+		} else {
+			return it.AuthString
+		}
+	})
+	authUser := common.Map(options.Users, func(it option.HysteriaUser) string {
+		return it.Name
+	})
 	var xplus []byte
 	if options.Obfs != "" {
 		xplus = []byte(options.Obfs)
@@ -104,7 +112,8 @@ func NewHysteria(ctx context.Context, router adapter.Router, logger log.ContextL
 			listenOptions: options.ListenOptions,
 		},
 		quicConfig:  quicConfig,
-		authKey:     auth,
+		authKey:     authKey,
+		authUser:    authUser,
 		xplusKey:    xplus,
 		sendBPS:     up,
 		recvBPS:     down,
@@ -158,7 +167,6 @@ func (h *Hysteria) acceptLoop() {
 		if err != nil {
 			return
 		}
-		h.logger.InfoContext(ctx, "inbound connection from ", conn.RemoteAddr())
 		go func() {
 			hErr := h.accept(ctx, conn)
 			if hErr != nil {
@@ -178,12 +186,21 @@ func (h *Hysteria) accept(ctx context.Context, conn quic.Connection) error {
 	if err != nil {
 		return err
 	}
-	if !bytes.Equal(clientHello.Auth, h.authKey) {
+	userIndex := slices.Index(h.authKey, string(clientHello.Auth))
+	if userIndex == -1 {
 		err = hysteria.WriteServerHello(controlStream, hysteria.ServerHello{
 			Message: "wrong password",
 		})
 		return E.Errors(E.New("wrong password: ", string(clientHello.Auth)), err)
 	}
+	user := h.authUser[userIndex]
+	if user == "" {
+		user = F.ToString(userIndex)
+	} else {
+		ctx = auth.ContextWithUser(ctx, user)
+	}
+	h.logger.InfoContext(ctx, "[", user, "] inbound connection from ", conn.RemoteAddr())
+	h.logger.DebugContext(ctx, "peer send speed: ", clientHello.SendBPS/1024/1024, " MBps, peer recv speed: ", clientHello.RecvBPS/1024/1024, " MBps")
 	if clientHello.SendBPS == 0 || clientHello.RecvBPS == 0 {
 		return E.New("invalid rate from client")
 	}

inbound/shadowsocks_control.go

@@ -1,94 +0,0 @@
-package inbound
-
-import (
-	"encoding/json"
-	"io"
-	"net/http"
-
-	C "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing-box/option"
-	"github.com/sagernet/sing/common"
-	E "github.com/sagernet/sing/common/exceptions"
-	F "github.com/sagernet/sing/common/format"
-
-	"github.com/go-chi/chi/v5"
-	"github.com/go-chi/render"
-)
-
-func (h *ShadowsocksMulti) createHandler() http.Handler {
-	router := chi.NewRouter()
-	router.Get("/", h.handleHello)
-	router.Put("/users", h.handleUpdateUsers)
-	router.Get("/traffics", h.handleReadTraffics)
-	return router
-}
-
-func (h *ShadowsocksMulti) handleHello(writer http.ResponseWriter, request *http.Request) {
-	render.JSON(writer, request, render.M{
-		"server":  "sing-box",
-		"version": C.Version,
-	})
-}
-
-func (h *ShadowsocksMulti) handleUpdateUsers(writer http.ResponseWriter, request *http.Request) {
-	var users []option.ShadowsocksUser
-	err := readRequest(request, &users)
-	if err != nil {
-		h.newError(E.Cause(err, "controller: update users: parse request"))
-		writer.WriteHeader(http.StatusBadRequest)
-		writer.Write([]byte(F.ToString(err)))
-		return
-	}
-	users = append([]option.ShadowsocksUser{{
-		Name:     "control",
-		Password: h.users[0].Password,
-	}}, users...)
-	err = h.service.UpdateUsersWithPasswords(common.MapIndexed(users, func(index int, user option.ShadowsocksUser) int {
-		return index
-	}), common.Map(users, func(user option.ShadowsocksUser) string {
-		return user.Password
-	}))
-	if err != nil {
-		h.newError(E.Cause(err, "controller: update users"))
-		writer.WriteHeader(http.StatusBadRequest)
-		writer.Write([]byte(F.ToString(err)))
-		return
-	}
-	h.users = users
-	h.trafficManager.Reset()
-	writer.WriteHeader(http.StatusNoContent)
-	h.logger.Info("controller: updated ", len(users)-1, " users")
-}
-
-type ShadowsocksUserTraffic struct {
-	Name     string `json:"name,omitempty"`
-	Upload   uint64 `json:"upload,omitempty"`
-	Download uint64 `json:"download,omitempty"`
-}
-
-func (h *ShadowsocksMulti) handleReadTraffics(writer http.ResponseWriter, request *http.Request) {
-	h.logger.Debug("controller: traffics sent")
-	trafficMap := h.trafficManager.ReadTraffics()
-	if len(trafficMap) == 0 {
-		writer.WriteHeader(http.StatusNoContent)
-		return
-	}
-	traffics := make([]ShadowsocksUserTraffic, 0, len(trafficMap))
-	for user, traffic := range trafficMap {
-		traffics = append(traffics, ShadowsocksUserTraffic{
-			Name:     h.users[user].Name,
-			Upload:   traffic.Upload,
-			Download: traffic.Download,
-		})
-	}
-	render.JSON(writer, request, traffics)
-}
-
-func readRequest(request *http.Request, v any) error {
-	defer request.Body.Close()
-	content, err := io.ReadAll(request.Body)
-	if err != nil {
-		return err
-	}
-	return json.Unmarshal(content, v)
-}

inbound/shadowsocks_multi.go

@@ -3,12 +3,9 @@ package inbound
 import (
 	"context"
 	"net"
-	"net/http"
 	"os"
 
 	"github.com/sagernet/sing-box/adapter"
-	"github.com/sagernet/sing-box/common/pipelistener"
-	"github.com/sagernet/sing-box/common/trafficcontrol"
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
@@ -16,7 +13,6 @@ import (
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/auth"
 	"github.com/sagernet/sing/common/buf"
-	E "github.com/sagernet/sing/common/exceptions"
 	F "github.com/sagernet/sing/common/format"
 	N "github.com/sagernet/sing/common/network"
 )
@@ -28,12 +24,8 @@ var (
 
 type ShadowsocksMulti struct {
 	myInboundAdapter
-	service        *shadowaead_2022.MultiService[int]
-	users          []option.ShadowsocksUser
-	controlEnabled bool
-	controller     *http.Server
-	controllerPipe *pipelistener.Listener
-	trafficManager *trafficcontrol.Manager[int]
+	service *shadowaead_2022.MultiService[int]
+	users   []option.ShadowsocksUser
 }
 
 func newShadowsocksMulti(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.ShadowsocksInboundOptions) (*ShadowsocksMulti, error) {
@@ -62,20 +54,7 @@ func newShadowsocksMulti(ctx context.Context, router adapter.Router, logger log.
 		udpTimeout,
 		adapter.NewUpstreamContextHandler(inbound.newConnection, inbound.newPacketConnection, inbound),
 	)
-	users := options.Users
-	if options.ControlPassword != "" {
-		inbound.controlEnabled = true
-		users = append([]option.ShadowsocksUser{{
-			Name:     "control",
-			Password: options.ControlPassword,
-		}}, users...)
-		inbound.controller = &http.Server{Handler: inbound.createHandler()}
-		inbound.trafficManager = trafficcontrol.NewManager[int]()
-	}
-	if err != nil {
-		return nil, err
-	}
-	err = service.UpdateUsersWithPasswords(common.MapIndexed(users, func(index int, user option.ShadowsocksUser) int {
+	err = service.UpdateUsersWithPasswords(common.MapIndexed(options.Users, func(index int, user option.ShadowsocksUser) int {
 		return index
 	}), common.Map(options.Users, func(user option.ShadowsocksUser) string {
 		return user.Password
@@ -85,30 +64,10 @@ func newShadowsocksMulti(ctx context.Context, router adapter.Router, logger log.
 	}
 	inbound.service = service
 	inbound.packetUpstream = service
-	inbound.users = users
+	inbound.users = options.Users
 	return inbound, err
 }
 
-func (h *ShadowsocksMulti) Start() error {
-	if h.controlEnabled {
-		h.controllerPipe = pipelistener.New(16)
-		go func() {
-			err := h.controller.Serve(h.controllerPipe)
-			if err != nil {
-				h.newError(E.Cause(err, "controller serve error"))
-			}
-		}()
-	}
-	return h.myInboundAdapter.Start()
-}
-
-func (h *ShadowsocksMulti) Close() error {
-	if h.controlEnabled {
-		h.controllerPipe.Close()
-	}
-	return h.myInboundAdapter.Close()
-}
-
 func (h *ShadowsocksMulti) NewConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext) error {
 	return h.service.NewConnection(adapter.WithContext(log.ContextWithNewID(ctx), &metadata), conn, adapter.UpstreamMetadata(metadata))
 }
@@ -126,11 +85,6 @@ func (h *ShadowsocksMulti) newConnection(ctx context.Context, conn net.Conn, met
 	if !loaded {
 		return os.ErrInvalid
 	}
-	if userIndex == 0 && h.controlEnabled {
-		h.logger.InfoContext(ctx, "inbound control connection")
-		h.controllerPipe.Serve(conn)
-		return nil
-	}
 	user := h.users[userIndex].Name
 	if user == "" {
 		user = F.ToString(userIndex)

inbound/shadowtls.go

@@ -29,6 +29,7 @@ type ShadowTLS struct {
 	handshakeAddr   M.Socksaddr
 	v2              bool
 	password        string
+	fallbackAfter   int
 }
 
 func NewShadowTLS(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.ShadowTLSInboundOptions) (*ShadowTLS, error) {
@@ -52,6 +53,11 @@ func NewShadowTLS(ctx context.Context, router adapter.Router, logger log.Context
 	case 1:
 	case 2:
 		inbound.v2 = true
+		if options.FallbackAfter == nil {
+			inbound.fallbackAfter = 2
+		} else {
+			inbound.fallbackAfter = *options.FallbackAfter
+		}
 	default:
 		return nil, E.New("unknown shadowtls protocol version: ", options.Version)
 	}
@@ -85,7 +91,7 @@ func (s *ShadowTLS) NewConnection(ctx context.Context, conn net.Conn, metadata a
 		hashConn := shadowtls.NewHashWriteConn(conn, s.password)
 		go bufio.Copy(hashConn, handshakeConn)
 		var request *buf.Buffer
-		request, err = s.copyUntilHandshakeFinishedV2(handshakeConn, conn, hashConn)
+		request, err = s.copyUntilHandshakeFinishedV2(handshakeConn, conn, hashConn, s.fallbackAfter)
 		if err == nil {
 			handshakeConn.Close()
 			return s.newConnection(ctx, bufio.NewCachedConn(shadowtls.NewConn(conn), request), metadata)
@@ -129,7 +135,7 @@ func (s *ShadowTLS) copyUntilHandshakeFinished(dst io.Writer, src io.Reader) err
 	}
 }
 
-func (s *ShadowTLS) copyUntilHandshakeFinishedV2(dst net.Conn, src io.Reader, hash *shadowtls.HashWriteConn) (*buf.Buffer, error) {
+func (s *ShadowTLS) copyUntilHandshakeFinishedV2(dst net.Conn, src io.Reader, hash *shadowtls.HashWriteConn, fallbackAfter int) (*buf.Buffer, error) {
 	const applicationData = 0x17
 	var tlsHdr [5]byte
 	var applicationDataCount int
@@ -159,7 +165,7 @@ func (s *ShadowTLS) copyUntilHandshakeFinishedV2(dst net.Conn, src io.Reader, ha
 		if err != nil {
 			return nil, err
 		}
-		if applicationDataCount > 3 {
+		if applicationDataCount > fallbackAfter {
 			return nil, os.ErrPermission
 		}
 	}

include/quic_stub.go

@@ -23,7 +23,7 @@ func init() {
 		return nil, C.ErrQUICNotIncluded
 	})
 	v2ray.RegisterQUICConstructor(
-		func(ctx context.Context, options option.V2RayQUICOptions, tlsConfig tls.Config, handler N.TCPConnectionHandler, errorHandler E.Handler) (adapter.V2RayServerTransport, error) {
+		func(ctx context.Context, options option.V2RayQUICOptions, tlsConfig tls.ServerConfig, handler N.TCPConnectionHandler, errorHandler E.Handler) (adapter.V2RayServerTransport, error) {
 			return nil, C.ErrQUICNotIncluded
 		},
 		func(ctx context.Context, dialer N.Dialer, serverAddr M.Socksaddr, options option.V2RayQUICOptions, tlsConfig tls.Config) (adapter.V2RayClientTransport, error) {

option/hysteria.go

@@ -7,8 +7,7 @@ type HysteriaInboundOptions struct {
 	Down                string             `json:"down,omitempty"`
 	DownMbps            int                `json:"down_mbps,omitempty"`
 	Obfs                string             `json:"obfs,omitempty"`
-	Auth                []byte             `json:"auth,omitempty"`
-	AuthString          string             `json:"auth_str,omitempty"`
+	Users               []HysteriaUser     `json:"users,omitempty"`
 	ReceiveWindowConn   uint64             `json:"recv_window_conn,omitempty"`
 	ReceiveWindowClient uint64             `json:"recv_window_client,omitempty"`
 	MaxConnClient       int                `json:"max_conn_client,omitempty"`
@@ -16,6 +15,12 @@ type HysteriaInboundOptions struct {
 	TLS                 *InboundTLSOptions `json:"tls,omitempty"`
 }
 
+type HysteriaUser struct {
+	Name       string `json:"name,omitempty"`
+	Auth       []byte `json:"auth,omitempty"`
+	AuthString string `json:"auth_str,omitempty"`
+}
+
 type HysteriaOutboundOptions struct {
 	DialerOptions
 	ServerOptions

option/outbound.go

@@ -122,7 +122,8 @@ func (h *Outbound) UnmarshalJSON(bytes []byte) error {
 type DialerOptions struct {
 	Detour             string         `json:"detour,omitempty"`
 	BindInterface      string         `json:"bind_interface,omitempty"`
-	BindAddress        *ListenAddress `json:"bind_address,omitempty"`
+	Inet4BindAddress   *ListenAddress `json:"inet4_bind_address,omitempty"`
+	Inet6BindAddress   *ListenAddress `json:"inet6_bind_address,omitempty"`
 	ProtectPath        string         `json:"protect_path,omitempty"`
 	RoutingMark        int            `json:"routing_mark,omitempty"`
 	ReuseAddr          bool           `json:"reuse_addr,omitempty"`

option/shadowtls.go

@@ -2,9 +2,10 @@ package option
 
 type ShadowTLSInboundOptions struct {
 	ListenOptions
-	Version   int                       `json:"version,omitempty"`
-	Password  string                    `json:"password,omitempty"`
-	Handshake ShadowTLSHandshakeOptions `json:"handshake"`
+	Version       int                       `json:"version,omitempty"`
+	Password      string                    `json:"password,omitempty"`
+	FallbackAfter *int                      `json:"fallback_after,omitempty"`
+	Handshake     ShadowTLSHandshakeOptions `json:"handshake"`
 }
 
 type ShadowTLSHandshakeOptions struct {

option/wireguard.go

@@ -9,6 +9,8 @@ type WireGuardOutboundOptions struct {
 	PrivateKey      string                 `json:"private_key"`
 	PeerPublicKey   string                 `json:"peer_public_key"`
 	PreSharedKey    string                 `json:"pre_shared_key,omitempty"`
+	Reserved        []uint8                `json:"reserved,omitempty"`
+	Workers         int                    `json:"workers,omitempty"`
 	MTU             uint32                 `json:"mtu,omitempty"`
 	Network         NetworkList            `json:"network,omitempty"`
 }

outbound/default.go

@@ -3,6 +3,7 @@ package outbound
 import (
 	"context"
 	"net"
+	"os"
 	"runtime"
 	"time"
 
@@ -136,22 +137,25 @@ func CopyEarlyConn(ctx context.Context, conn net.Conn, serverConn net.Conn) erro
 	_payload := buf.StackNew()
 	payload := common.Dup(_payload)
 	err := conn.SetReadDeadline(time.Now().Add(C.ReadPayloadTimeout))
-	if err != nil {
-		return err
-	}
-	_, err = payload.ReadOnceFrom(conn)
-	if err != nil && !E.IsTimeout(err) {
-		return E.Cause(err, "read payload")
-	}
-	err = conn.SetReadDeadline(time.Time{})
-	if err != nil {
-		payload.Release()
-		return err
+	if err != os.ErrInvalid {
+		if err != nil {
+			return err
+		}
+		_, err = payload.ReadOnceFrom(conn)
+		if err != nil && !E.IsTimeout(err) {
+			return E.Cause(err, "read payload")
+		}
+		err = conn.SetReadDeadline(time.Time{})
+		if err != nil {
+			payload.Release()
+			return err
+		}
 	}
 	_, err = serverConn.Write(payload.Bytes())
 	if err != nil {
 		return N.HandshakeFailure(conn, err)
 	}
 	runtime.KeepAlive(_payload)
+	payload.Release()
 	return bufio.CopyConn(ctx, conn, serverConn)
 }

outbound/hysteria.go

@@ -23,7 +23,10 @@ import (
 	N "github.com/sagernet/sing/common/network"
 )
 
-var _ adapter.Outbound = (*Hysteria)(nil)
+var (
+	_ adapter.Outbound                = (*Hysteria)(nil)
+	_ adapter.InterfaceUpdateListener = (*Hysteria)(nil)
+)
 
 type Hysteria struct {
 	myOutboundAdapter
@@ -236,6 +239,11 @@ func (h *Hysteria) udpRecvLoop(conn quic.Connection) {
 	}
 }
 
+func (h *Hysteria) InterfaceUpdated() error {
+	h.Close()
+	return nil
+}
+
 func (h *Hysteria) Close() error {
 	h.connAccess.Lock()
 	defer h.connAccess.Unlock()

outbound/ssh.go

@@ -21,7 +21,10 @@ import (
 	"golang.org/x/crypto/ssh"
 )
 
-var _ adapter.Outbound = (*SSH)(nil)
+var (
+	_ adapter.Outbound                = (*SSH)(nil)
+	_ adapter.InterfaceUpdateListener = (*SSH)(nil)
+)
 
 type SSH struct {
 	myOutboundAdapter
@@ -149,6 +152,11 @@ func (s *SSH) connect() (*ssh.Client, error) {
 	return client, nil
 }
 
+func (s *SSH) InterfaceUpdated() error {
+	common.Close(s.clientConn)
+	return nil
+}
+
 func (s *SSH) Close() error {
 	return common.Close(s.clientConn)
 }

outbound/tor.go

@@ -41,9 +41,18 @@ func NewTor(ctx context.Context, router adapter.Router, logger log.ContextLogger
 	startConf := newConfig()
 	startConf.DataDir = os.ExpandEnv(options.DataDirectory)
 	startConf.TempDataDirBase = os.TempDir()
+	startConf.ExtraArgs = options.ExtraArgs
+	if options.DataDirectory != "" {
+		dataDirAbs, _ := filepath.Abs(startConf.DataDir)
+		if geoIPPath := filepath.Join(dataDirAbs, "geoip"); rw.FileExists(geoIPPath) && !common.Contains(options.ExtraArgs, "--GeoIPFile") {
+			options.ExtraArgs = append(options.ExtraArgs, "--GeoIPFile", geoIPPath)
+		}
+		if geoIP6Path := filepath.Join(dataDirAbs, "geoip6"); rw.FileExists(geoIP6Path) && !common.Contains(options.ExtraArgs, "--GeoIPv6File") {
+			options.ExtraArgs = append(options.ExtraArgs, "--GeoIPv6File", geoIP6Path)
+		}
+	}
 	if options.ExecutablePath != "" {
 		startConf.ExePath = options.ExecutablePath
-		startConf.ExtraArgs = options.ExtraArgs
 		startConf.ProcessCreator = nil
 		startConf.UseEmbeddedControlConn = false
 	}

outbound/wireguard.go

@@ -22,11 +22,13 @@ import (
 	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
-
-	"golang.zx2c4.com/wireguard/device"
+	"github.com/sagernet/wireguard-go/device"
 )
 
-var _ adapter.Outbound = (*WireGuard)(nil)
+var (
+	_ adapter.Outbound                = (*WireGuard)(nil)
+	_ adapter.InterfaceUpdateListener = (*WireGuard)(nil)
+)
 
 type WireGuard struct {
 	myOutboundAdapter
@@ -45,8 +47,15 @@ func NewWireGuard(ctx context.Context, router adapter.Router, logger log.Context
 			tag:      tag,
 		},
 	}
+	var reserved [3]uint8
+	if len(options.Reserved) > 0 {
+		if len(options.Reserved) != 3 {
+			return nil, E.New("invalid reserved value, required 3 bytes, got ", len(options.Reserved))
+		}
+		copy(reserved[:], options.Reserved)
+	}
 	peerAddr := options.ServerOptions.Build()
-	outbound.bind = wireguard.NewClientBind(ctx, dialer.New(router, options.DialerOptions), peerAddr)
+	outbound.bind = wireguard.NewClientBind(ctx, dialer.New(router, options.DialerOptions), peerAddr, reserved)
 	localPrefixes := common.Map(options.LocalAddress, option.ListenPrefix.Build)
 	if len(localPrefixes) == 0 {
 		return nil, E.New("missing local address")
@@ -114,7 +123,7 @@ func NewWireGuard(ctx context.Context, router adapter.Router, logger log.Context
 		Errorf: func(format string, args ...interface{}) {
 			logger.Error(fmt.Sprintf(strings.ToLower(format), args...))
 		},
-	})
+	}, options.Workers)
 	if debug.Enabled {
 		logger.Trace("created wireguard ipc conf: \n", ipcConf)
 	}
@@ -127,6 +136,11 @@ func NewWireGuard(ctx context.Context, router adapter.Router, logger log.Context
 	return outbound, nil
 }
 
+func (w *WireGuard) InterfaceUpdated() error {
+	w.bind.Reset()
+	return nil
+}
+
 func (w *WireGuard) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
 	switch network {
 	case N.NetworkTCP:

release/local/install_go.sh

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 
 set -e -o pipefail
-curl -Lo go.tar.gz https://go.dev/dl/go1.19.2.linux-amd64.tar.gz
+curl -Lo go.tar.gz https://go.dev/dl/go1.19.3.linux-amd64.tar.gz
 sudo rm -rf /usr/local/go
 sudo tar -C /usr/local -xzf go.tar.gz
 rm go.tar.gz

release/local/reinstall.sh

@@ -16,4 +16,3 @@ popd
 sudo systemctl stop sing-box
 sudo cp $(go env GOPATH)/bin/sing-box /usr/local/bin/
 sudo systemctl start sing-box
-sudo journalctl -u sing-box --output cat -f

route/router.go

@@ -234,7 +234,7 @@ func NewRouter(ctx context.Context, logger log.ContextLogger, dnsLogger log.Cont
 	}
 	if defaultTransport == nil {
 		if len(transports) == 0 {
-			transports = append(transports, &dns.LocalTransport{})
+			transports = append(transports, dns.NewLocalTransport(N.SystemDialer))
 		}
 		defaultTransport = transports[0]
 	}
@@ -262,20 +262,7 @@ func NewRouter(ctx context.Context, logger log.ContextLogger, dnsLogger log.Cont
 		if err != nil {
 			return nil, E.New("auto_detect_interface unsupported on current platform")
 		}
-		interfaceMonitor.RegisterCallback(func(event int) error {
-			if C.IsAndroid {
-				var vpnStatus string
-				if router.interfaceMonitor.AndroidVPNEnabled() {
-					vpnStatus = "enabled"
-				} else {
-					vpnStatus = "disabled"
-				}
-				router.logger.Info("updated default interface ", router.interfaceMonitor.DefaultInterfaceName(netip.IPv4Unspecified()), ", index ", router.interfaceMonitor.DefaultInterfaceIndex(netip.IPv4Unspecified()), ", vpn ", vpnStatus)
-			} else {
-				router.logger.Info("updated default interface ", router.interfaceMonitor.DefaultInterfaceName(netip.IPv4Unspecified()), ", index ", router.interfaceMonitor.DefaultInterfaceIndex(netip.IPv4Unspecified()))
-			}
-			return nil
-		})
+		interfaceMonitor.RegisterCallback(router.notifyNetworkUpdate)
 		router.interfaceMonitor = interfaceMonitor
 	}
 
@@ -1014,3 +1001,28 @@ func (r *Router) NewError(ctx context.Context, err error) {
 	}
 	r.logger.ErrorContext(ctx, err)
 }
+
+func (r *Router) notifyNetworkUpdate(int) error {
+	if C.IsAndroid {
+		var vpnStatus string
+		if r.interfaceMonitor.AndroidVPNEnabled() {
+			vpnStatus = "enabled"
+		} else {
+			vpnStatus = "disabled"
+		}
+		r.logger.Info("updated default interface ", r.interfaceMonitor.DefaultInterfaceName(netip.IPv4Unspecified()), ", index ", r.interfaceMonitor.DefaultInterfaceIndex(netip.IPv4Unspecified()), ", vpn ", vpnStatus)
+	} else {
+		r.logger.Info("updated default interface ", r.interfaceMonitor.DefaultInterfaceName(netip.IPv4Unspecified()), ", index ", r.interfaceMonitor.DefaultInterfaceIndex(netip.IPv4Unspecified()))
+	}
+
+	for _, outbound := range r.outbounds {
+		listener, isListener := outbound.(adapter.InterfaceUpdateListener)
+		if isListener {
+			err := listener.InterfaceUpdated()
+			if err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}

route/router_dns.go

@@ -37,7 +37,11 @@ func (r *Router) matchDNS(ctx context.Context) (context.Context, dns.Transport,
 			r.dnsLogger.ErrorContext(ctx, "transport not found: ", detour)
 		}
 	}
-	return ctx, r.defaultTransport, r.defaultDomainStrategy
+	if domainStrategy, dsLoaded := r.transportDomainStrategy[r.defaultTransport]; dsLoaded {
+		return ctx, r.defaultTransport, domainStrategy
+	} else {
+		return ctx, r.defaultTransport, r.defaultDomainStrategy
+	}
 }
 
 func (r *Router) Exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg, error) {

test/go.mod

@@ -9,69 +9,65 @@ replace github.com/sagernet/sing-box => ../
 require (
 	github.com/docker/docker v20.10.18+incompatible
 	github.com/docker/go-connections v0.4.0
-	github.com/gofrs/uuid v4.3.0+incompatible
+	github.com/gofrs/uuid v4.3.1+incompatible
 	github.com/sagernet/sing v0.0.0-20221008120626-60a9910eefe4
 	github.com/sagernet/sing-shadowsocks v0.0.0-20220819002358-7461bb09a8f6
 	github.com/spyzhov/ajson v0.7.1
-	github.com/stretchr/testify v1.8.0
+	github.com/stretchr/testify v1.8.1
 	go.uber.org/goleak v1.2.0
-	golang.org/x/net v0.0.0-20221004154528-8021a29435af
+	golang.org/x/net v0.2.0
 )
 
-//replace github.com/sagernet/sing => ../../sing
-
 require (
 	berty.tech/go-libtor v1.0.385 // indirect
-	github.com/Dreamacro/clash v1.11.8 // indirect
+	github.com/Dreamacro/clash v1.11.12 // indirect
 	github.com/Microsoft/go-winio v0.5.1 // indirect
 	github.com/ajg/form v1.5.1 // indirect
 	github.com/andybalholm/brotli v1.0.4 // indirect
 	github.com/caddyserver/certmagic v0.17.2 // indirect
-	github.com/cloudflare/circl v1.2.1-0.20220831060716-4cf0150356fc // indirect
+	github.com/cloudflare/circl v1.2.1-0.20221019164342-6ab4dfed8f3c // indirect
 	github.com/cretz/bine v0.2.0 // indirect
-	github.com/database64128/tfo-go/v2 v2.0.1 // indirect
+	github.com/database64128/tfo-go/v2 v2.0.2 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/docker/distribution v2.8.1+incompatible // indirect
 	github.com/docker/go-units v0.4.0 // indirect
-	github.com/fsnotify/fsnotify v1.5.4 // indirect
+	github.com/fsnotify/fsnotify v1.6.0 // indirect
 	github.com/go-chi/chi/v5 v5.0.7 // indirect
 	github.com/go-chi/cors v1.2.1 // indirect
 	github.com/go-chi/render v1.0.2 // indirect
-	github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
-	github.com/golang/mock v1.6.0 // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/google/btree v1.0.1 // indirect
 	github.com/hashicorp/yamux v0.1.1 // indirect
-	github.com/klauspost/compress v1.13.6 // indirect
+	github.com/klauspost/compress v1.15.12 // indirect
 	github.com/klauspost/cpuid/v2 v2.1.1 // indirect
 	github.com/libdns/libdns v0.2.1 // indirect
 	github.com/logrusorgru/aurora v2.0.3+incompatible // indirect
-	github.com/marten-seemann/qpack v0.2.1 // indirect
-	github.com/marten-seemann/qtls-go1-18 v0.1.2 // indirect
-	github.com/marten-seemann/qtls-go1-19 v0.1.0 // indirect
+	github.com/marten-seemann/qpack v0.3.0 // indirect
+	github.com/marten-seemann/qtls-go1-18 v0.1.3 // indirect
+	github.com/marten-seemann/qtls-go1-19 v0.1.1 // indirect
 	github.com/mholt/acmez v1.0.4 // indirect
 	github.com/miekg/dns v1.1.50 // indirect
-	github.com/moby/term v0.0.0-20220808134915-39b0c02b01ae // indirect
+	github.com/moby/term v0.0.0-20221105221325-4eb28fa6025c // indirect
 	github.com/morikuni/aec v1.0.0 // indirect
-	github.com/nxadm/tail v1.4.8 // indirect
-	github.com/onsi/ginkgo v1.16.5 // indirect
 	github.com/opencontainers/go-digest v1.0.0 // indirect
 	github.com/opencontainers/image-spec v1.0.2 // indirect
 	github.com/oschwald/maxminddb-golang v1.10.0 // indirect
 	github.com/pires/go-proxyproto v0.6.2 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/refraction-networking/utls v1.1.2 // indirect
+	github.com/refraction-networking/utls v1.2.0 // indirect
 	github.com/sagernet/abx-go v0.0.0-20220819185957-dba1257d738e // indirect
+	github.com/sagernet/cloudflare-tls v0.0.0-20221031050923-d70792f4c3a0 // indirect
 	github.com/sagernet/go-tun2socks v1.16.12-0.20220818015926-16cb67876a61 // indirect
 	github.com/sagernet/netlink v0.0.0-20220905062125-8043b4a9aa97 // indirect
-	github.com/sagernet/quic-go v0.0.0-20220818150011-de611ab3e2bb // indirect
-	github.com/sagernet/sing-dns v0.0.0-20220929010544-ee843807aae3 // indirect
-	github.com/sagernet/sing-tun v0.0.0-20221009132126-1ede22e6eb7e // indirect
-	github.com/sagernet/sing-vmess v0.0.0-20220925083655-063bc85ea685 // indirect
+	github.com/sagernet/quic-go v0.0.0-20221108053023-645bcc4f9b15 // indirect
+	github.com/sagernet/sing-dns v0.0.0-20221113031420-c6aaf2ea4b10 // indirect
+	github.com/sagernet/sing-tun v0.0.0-20221104121441-66c48a57776f // indirect
+	github.com/sagernet/sing-vmess v0.0.0-20221109021549-b446d5bdddf0 // indirect
 	github.com/sagernet/smux v0.0.0-20220831015742-e0f1988e3195 // indirect
 	github.com/sagernet/websocket v0.0.0-20220913015213-615516348b4e // indirect
+	github.com/sagernet/wireguard-go v0.0.0-20221116151939-c99467f53f2c // indirect
 	github.com/sirupsen/logrus v1.9.0 // indirect
 	github.com/vishvananda/netns v0.0.0-20211101163701-50045581ed74 // indirect
 	go.etcd.io/bbolt v1.3.6 // indirect
@@ -79,21 +75,20 @@ require (
 	go.uber.org/multierr v1.6.0 // indirect
 	go.uber.org/zap v1.23.0 // indirect
 	go4.org/netipx v0.0.0-20220925034521-797b0c90d8ab // indirect
-	golang.org/x/crypto v0.0.0-20221005025214-4161e89ecf1b // indirect
-	golang.org/x/exp v0.0.0-20220722155223-a9213eeb770e // indirect
-	golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4 // indirect
-	golang.org/x/sys v0.0.0-20220928140112-f11e5e49a4ec // indirect
-	golang.org/x/text v0.3.7 // indirect
+	golang.org/x/crypto v0.3.0 // indirect
+	golang.org/x/exp v0.0.0-20221028150844-83b7d23a625f // indirect
+	golang.org/x/mod v0.6.0 // indirect
+	golang.org/x/sys v0.2.0 // indirect
+	golang.org/x/text v0.4.0 // indirect
 	golang.org/x/time v0.0.0-20191024005414-555d28b269f0 // indirect
-	golang.org/x/tools v0.1.11-0.20220513221640-090b14e8501f // indirect
-	golang.zx2c4.com/wintun v0.0.0-20211104114900-415007cec224 // indirect
-	golang.zx2c4.com/wireguard v0.0.0-20220829161405-d1d08426b27b // indirect
+	golang.org/x/tools v0.2.0 // indirect
 	google.golang.org/genproto v0.0.0-20210722135532-667f2b7c528f // indirect
-	google.golang.org/grpc v1.49.0 // indirect
+	google.golang.org/grpc v1.51.0 // indirect
 	google.golang.org/protobuf v1.28.1 // indirect
-	gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
-	gotest.tools/v3 v3.3.0 // indirect
+	gotest.tools/v3 v3.4.0 // indirect
 	gvisor.dev/gvisor v0.0.0-20220901235040-6ca97ef2ce1c // indirect
 	lukechampine.com/blake3 v1.1.7 // indirect
 )
+
+//replace github.com/sagernet/sing => ../../sing

test/go.sum

@@ -3,10 +3,9 @@ berty.tech/go-libtor v1.0.385/go.mod h1:9swOOQVb+kmvuAlsgWUK/4c52pm69AdbJsxLzk+f
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 h1:UQHMgLO+TxOElx5B5HZ4hJQsoJ/PvUvKRhJHDQXO8P8=
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@@ -20,17 +19,16 @@ github.com/caddyserver/certmagic v0.17.2 h1:o30seC1T/dBqBCNNGNHWwj2i5/I/FMjBbTAh
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@@ -48,10 +46,8 @@ github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1m
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@@ -59,16 +55,13 @@ github.com/go-chi/cors v1.2.1 h1:xEC8UT3Rlp2QuWNEr4Fs/c2EAGVKBwy/1vHx3bppil4=
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@@ -91,16 +84,15 @@ github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMyw
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@@ -113,31 +105,22 @@ github.com/libdns/libdns v0.2.1 h1:Wu59T7wSHRgtA0cfxC+n1c/e+O3upJGWytknkmFEDis=
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@@ -152,48 +135,53 @@ github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINE
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@@ -220,12 +208,11 @@ golang.org/x/crypto v0.0.0-20190404164418-38d8ce5564a5/go.mod h1:WFFai1msRO1wXaE
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@@ -236,29 +223,25 @@ golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzB
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@@ -268,48 +251,41 @@ golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJ
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-golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190403152447-81d4e9dc473e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190904154756-749cb33beabd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20191005200804-aed5e4c7ecf9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20191120155948-bd437916bb0e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200217220822-9197077df867/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200519105757-fe76b779f299/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200923182605-d9f96fdee20d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210112080510-489259a85091/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20210616094352-59db8d763f22/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220412211240-33da011f77ad/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220704084225-05e143d24a9e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220731174439-a90be440212d/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220928140112-f11e5e49a4ec h1:BkDtF2Ih9xZ7le9ndzTA7KJow28VbQW3odyk/8drmuI=
-golang.org/x/sys v0.0.0-20220928140112-f11e5e49a4ec/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220908164124-27713097b956/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.2.0 h1:ljd4t30dBnAvMZaQCevtY0xLLD0A+bRZXbgLMLU1F/A=
+golang.org/x/sys v0.2.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
-golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 h1:JGgROgKl9N8DuW20oFS5gxc+lE67/N3FcwmBPMe7ArY=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
+golang.org/x/term v0.2.0 h1:z85xZCsEl7bi/KwbNADeBYoOP0++7W1ipu+aGnpwzRM=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
+golang.org/x/text v0.4.0 h1:BrVqGRd7+k1DiOgtnFvAkoQEWQvBc25ouMJM6429SFg=
+golang.org/x/text v0.4.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/time v0.0.0-20191024005414-555d28b269f0 h1:/5xXl8Y5W96D+TtHSlonuFqGHIWVuyCkGJLwGh9JJFs=
 golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
@@ -317,26 +293,19 @@ golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGm
 golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
-golang.org/x/tools v0.0.0-20190624222133-a101b041ded4/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
-golang.org/x/tools v0.0.0-20201224043029-2b0845dc783e/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
 golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
 golang.org/x/tools v0.1.0/go.mod h1:xkSsbof2nBLbhDlRMhhhyNLN/zl3eTqcnHD5viDpcZ0=
-golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.6-0.20210726203631-07bc1bf47fb2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
-golang.org/x/tools v0.1.11-0.20220513221640-090b14e8501f h1:OKYpQQVE3DKSc3r3zHVzq46vq5YH7x8xpR3/k9ixmUg=
-golang.org/x/tools v0.1.11-0.20220513221640-090b14e8501f/go.mod h1:SgwaegtQh8clINPpECJMqnxLv9I09HLqnW3RMqW0CA4=
+golang.org/x/tools v0.2.0 h1:G6AHpWxTMGY1KyEYoAQ5WTtIekUUvDNjan3ugu60JvE=
+golang.org/x/tools v0.2.0/go.mod h1:y4OqIKeOV/fWJetJ8bXPU1sEVniLMIyDAZWeHdV+NTA=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.zx2c4.com/wintun v0.0.0-20211104114900-415007cec224 h1:Ug9qvr1myri/zFN6xL17LSCBGFDnphBBhzmILHsM5TY=
-golang.zx2c4.com/wintun v0.0.0-20211104114900-415007cec224/go.mod h1:deeaetjYA+DHMHg+sMSMI58GrEteJUUzzw7en6TJQcI=
-golang.zx2c4.com/wireguard v0.0.0-20220829161405-d1d08426b27b h1:qgrKnOfe1zyURRNdmDlGbN32i38Zjmw0B1+TMdHcOvg=
-golang.zx2c4.com/wireguard v0.0.0-20220829161405-d1d08426b27b/go.mod h1:6y4CqPAy54NwiN4nC8K+R1eMpQDB1P2d25qmunh2RSA=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
@@ -352,8 +321,8 @@ google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8
 google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTpR3n0=
 google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
 google.golang.org/grpc v1.39.0/go.mod h1:PImNr+rS9TWYb2O4/emRugxiyHZ5JyHW5F+RPnDzfrE=
-google.golang.org/grpc v1.49.0 h1:WTLtQzmQori5FUH25Pq4WT22oCsv8USpQ+F6rqtsmxw=
-google.golang.org/grpc v1.49.0/go.mod h1:ZgQEeidpAuNRZ8iRrlBKXZQP1ghovWIVhdJRyCDK+GI=
+google.golang.org/grpc v1.51.0 h1:E1eGv1FTqoLIdnBCZufiSHgKjlqG6fKFf6pPWtMTh8U=
+google.golang.org/grpc v1.51.0/go.mod h1:wgNDFcnuBGmxLKI/qn4T+m5BtEBYXJPvibbUPsAIPww=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@@ -371,22 +340,15 @@ google.golang.org/protobuf v1.28.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqw
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
-gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
-gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
-gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gotest.tools/v3 v3.0.2/go.mod h1:3SzNCllyD9/Y+b5r9JIKQ474KzkZyqLqEfYqMsX94Bk=
-gotest.tools/v3 v3.3.0 h1:MfDY1b1/0xN1CyMlQDac0ziEy9zJQd9CXBRRDHw2jJo=
-gotest.tools/v3 v3.3.0/go.mod h1:Mcr9QNxkg0uMvy/YElmo4SpXgJKWgQvYrT7Kw5RzJ1A=
+gotest.tools/v3 v3.4.0 h1:ZazjZUfuVeZGLAmlKKuyv3IKP5orXcwtOwDQH6YVr6o=
+gotest.tools/v3 v3.4.0/go.mod h1:CtbdzLSsqVhDgMtKsx03ird5YTGB3ar27v0u/yKBW5g=
 gvisor.dev/gvisor v0.0.0-20220901235040-6ca97ef2ce1c h1:m5lcgWnL3OElQNVyp3qcncItJ2c0sQlSGjYK2+nJTA4=
 gvisor.dev/gvisor v0.0.0-20220901235040-6ca97ef2ce1c/go.mod h1:TIvkJD0sxe8pIob3p6T8IzxXunlp6yfgktvTNp+DGNM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

test/http_test.go

@@ -0,0 +1,61 @@
+package main
+
+import (
+	"net/netip"
+	"testing"
+
+	C "github.com/sagernet/sing-box/constant"
+	"github.com/sagernet/sing-box/option"
+)
+
+func TestHTTPSelf(t *testing.T) {
+	startInstance(t, option.Options{
+		Inbounds: []option.Inbound{
+			{
+				Type: C.TypeMixed,
+				Tag:  "mixed-in",
+				MixedOptions: option.HTTPMixedInboundOptions{
+					ListenOptions: option.ListenOptions{
+						Listen:     option.ListenAddress(netip.IPv4Unspecified()),
+						ListenPort: clientPort,
+					},
+				},
+			},
+			{
+				Type: C.TypeMixed,
+				MixedOptions: option.HTTPMixedInboundOptions{
+					ListenOptions: option.ListenOptions{
+						Listen:     option.ListenAddress(netip.IPv4Unspecified()),
+						ListenPort: serverPort,
+					},
+				},
+			},
+		},
+		Outbounds: []option.Outbound{
+			{
+				Type: C.TypeDirect,
+			},
+			{
+				Type: C.TypeHTTP,
+				Tag:  "http-out",
+				HTTPOptions: option.HTTPOutboundOptions{
+					ServerOptions: option.ServerOptions{
+						Server:     "127.0.0.1",
+						ServerPort: serverPort,
+					},
+				},
+			},
+		},
+		Route: &option.RouteOptions{
+			Rules: []option.Rule{
+				{
+					DefaultOptions: option.DefaultRule{
+						Inbound:  []string{"mixed-in"},
+						Outbound: "http-out",
+					},
+				},
+			},
+		},
+	})
+	testTCP(t, clientPort, testPort)
+}

test/hysteria_test.go

@@ -29,10 +29,12 @@ func TestHysteriaSelf(t *testing.T) {
 						Listen:     option.ListenAddress(netip.IPv4Unspecified()),
 						ListenPort: serverPort,
 					},
-					UpMbps:     100,
-					DownMbps:   100,
-					AuthString: "password",
-					Obfs:       "fuck me till the daylight",
+					UpMbps:   100,
+					DownMbps: 100,
+					Users: []option.HysteriaUser{{
+						AuthString: "password",
+					}},
+					Obfs: "fuck me till the daylight",
 					TLS: &option.InboundTLSOptions{
 						Enabled:         true,
 						ServerName:      "example.org",
@@ -91,10 +93,12 @@ func TestHysteriaInbound(t *testing.T) {
 						Listen:     option.ListenAddress(netip.IPv4Unspecified()),
 						ListenPort: serverPort,
 					},
-					UpMbps:     100,
-					DownMbps:   100,
-					AuthString: "password",
-					Obfs:       "fuck me till the daylight",
+					UpMbps:   100,
+					DownMbps: 100,
+					Users: []option.HysteriaUser{{
+						AuthString: "password",
+					}},
+					Obfs: "fuck me till the daylight",
 					TLS: &option.InboundTLSOptions{
 						Enabled:         true,
 						ServerName:      "example.org",

test/shadowtls_test.go

@@ -139,6 +139,7 @@ func TestShadowTLSv2Fallback(t *testing.T) {
 							ServerPort: 443,
 						},
 					},
+					Version:  2,
 					Password: "hello",
 				},
 			},
@@ -155,6 +156,7 @@ func TestShadowTLSv2Fallback(t *testing.T) {
 	response, err := client.Get("https://google.com")
 	require.NoError(t, err)
 	require.Equal(t, response.StatusCode, 200)
+	response.Body.Close()
 	client.CloseIdleConnections()
 }
 
@@ -261,25 +263,6 @@ func TestShadowTLSOutbound(t *testing.T) {
 					},
 				},
 			},
-			{
-				Type: C.TypeShadowTLS,
-				Tag:  "in",
-				ShadowTLSOptions: option.ShadowTLSInboundOptions{
-					ListenOptions: option.ListenOptions{
-						Listen:     option.ListenAddress(netip.IPv4Unspecified()),
-						ListenPort: serverPort,
-						Detour:     "detour",
-					},
-					Handshake: option.ShadowTLSHandshakeOptions{
-						ServerOptions: option.ServerOptions{
-							Server:     "google.com",
-							ServerPort: 443,
-						},
-					},
-					Version:  2,
-					Password: password,
-				},
-			},
 			{
 				Type: C.TypeShadowsocks,
 				Tag:  "detour",
@@ -319,6 +302,7 @@ func TestShadowTLSOutbound(t *testing.T) {
 						Enabled:    true,
 						ServerName: "google.com",
 					},
+					Version:  2,
 					Password: "hello",
 				},
 			},

test/v2ray_api_test.go

@@ -0,0 +1,56 @@
+package main
+
+import (
+	"context"
+	"net/netip"
+	"testing"
+
+	C "github.com/sagernet/sing-box/constant"
+	"github.com/sagernet/sing-box/experimental/v2rayapi"
+	"github.com/sagernet/sing-box/option"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestV2RayAPI(t *testing.T) {
+	i := startInstance(t, option.Options{
+		Inbounds: []option.Inbound{
+			{
+				Type: C.TypeMixed,
+				Tag:  "in",
+				MixedOptions: option.HTTPMixedInboundOptions{
+					ListenOptions: option.ListenOptions{
+						Listen:     option.ListenAddress(netip.IPv4Unspecified()),
+						ListenPort: clientPort,
+					},
+				},
+			},
+		},
+		Outbounds: []option.Outbound{
+			{
+				Type: C.TypeDirect,
+				Tag:  "out",
+			},
+		},
+		Experimental: &option.ExperimentalOptions{
+			V2RayAPI: &option.V2RayAPIOptions{
+				Listen: "127.0.0.1:8080",
+				Stats: &option.V2RayStatsServiceOptions{
+					Enabled:   true,
+					Inbounds:  []string{"in"},
+					Outbounds: []string{"out"},
+				},
+			},
+		},
+	})
+	testSuit(t, clientPort, testPort)
+	statsService := i.Router().V2RayServer().StatsService()
+	require.NotNil(t, statsService)
+	response, err := statsService.(v2rayapi.StatsServiceServer).QueryStats(context.Background(), &v2rayapi.QueryStatsRequest{Regexp: true, Patterns: []string{".*"}})
+	require.NoError(t, err)
+	count := response.Stat[0].Value
+	require.Equal(t, len(response.Stat), 4)
+	for _, stat := range response.Stat {
+		require.Equal(t, count, stat.Value)
+	}
+}

transport/cloudflaretls/README.md

@@ -1,7 +0,0 @@
-# cloudflare-tls
-
-kanged from https://github.com/cloudflare/go
-branch: cf
-commit: 4d2a840e50d2b4316aa19934271832d080c44f7f
-go: 1.18.5
-changes: use github.com/cloudflare/circl 4cf0150356fc62a0ea5c0eec2f64b756cb404145

transport/cloudflaretls/alert.go

@@ -1,101 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package tls
-
-import "strconv"
-
-type alert uint8
-
-const (
-	// alert level
-	alertLevelWarning = 1
-	alertLevelError   = 2
-)
-
-const (
-	alertCloseNotify                  alert = 0
-	alertUnexpectedMessage            alert = 10
-	alertBadRecordMAC                 alert = 20
-	alertDecryptionFailed             alert = 21
-	alertRecordOverflow               alert = 22
-	alertDecompressionFailure         alert = 30
-	alertHandshakeFailure             alert = 40
-	alertBadCertificate               alert = 42
-	alertUnsupportedCertificate       alert = 43
-	alertCertificateRevoked           alert = 44
-	alertCertificateExpired           alert = 45
-	alertCertificateUnknown           alert = 46
-	alertIllegalParameter             alert = 47
-	alertUnknownCA                    alert = 48
-	alertAccessDenied                 alert = 49
-	alertDecodeError                  alert = 50
-	alertDecryptError                 alert = 51
-	alertExportRestriction            alert = 60
-	alertProtocolVersion              alert = 70
-	alertInsufficientSecurity         alert = 71
-	alertInternalError                alert = 80
-	alertInappropriateFallback        alert = 86
-	alertUserCanceled                 alert = 90
-	alertNoRenegotiation              alert = 100
-	alertMissingExtension             alert = 109
-	alertUnsupportedExtension         alert = 110
-	alertCertificateUnobtainable      alert = 111
-	alertUnrecognizedName             alert = 112
-	alertBadCertificateStatusResponse alert = 113
-	alertBadCertificateHashValue      alert = 114
-	alertUnknownPSKIdentity           alert = 115
-	alertCertificateRequired          alert = 116
-	alertNoApplicationProtocol        alert = 120
-	alertECHRequired                  alert = 121
-)
-
-var alertText = map[alert]string{
-	alertCloseNotify:                  "close notify",
-	alertUnexpectedMessage:            "unexpected message",
-	alertBadRecordMAC:                 "bad record MAC",
-	alertDecryptionFailed:             "decryption failed",
-	alertRecordOverflow:               "record overflow",
-	alertDecompressionFailure:         "decompression failure",
-	alertHandshakeFailure:             "handshake failure",
-	alertBadCertificate:               "bad certificate",
-	alertUnsupportedCertificate:       "unsupported certificate",
-	alertCertificateRevoked:           "revoked certificate",
-	alertCertificateExpired:           "expired certificate",
-	alertCertificateUnknown:           "unknown certificate",
-	alertIllegalParameter:             "illegal parameter",
-	alertUnknownCA:                    "unknown certificate authority",
-	alertAccessDenied:                 "access denied",
-	alertDecodeError:                  "error decoding message",
-	alertDecryptError:                 "error decrypting message",
-	alertExportRestriction:            "export restriction",
-	alertProtocolVersion:              "protocol version not supported",
-	alertInsufficientSecurity:         "insufficient security level",
-	alertInternalError:                "internal error",
-	alertInappropriateFallback:        "inappropriate fallback",
-	alertUserCanceled:                 "user canceled",
-	alertNoRenegotiation:              "no renegotiation",
-	alertMissingExtension:             "missing extension",
-	alertUnsupportedExtension:         "unsupported extension",
-	alertCertificateUnobtainable:      "certificate unobtainable",
-	alertUnrecognizedName:             "unrecognized name",
-	alertBadCertificateStatusResponse: "bad certificate status response",
-	alertBadCertificateHashValue:      "bad certificate hash value",
-	alertUnknownPSKIdentity:           "unknown PSK identity",
-	alertCertificateRequired:          "certificate required",
-	alertNoApplicationProtocol:        "no application protocol",
-	alertECHRequired:                  "ECH required",
-}
-
-func (e alert) String() string {
-	s, ok := alertText[e]
-	if ok {
-		return "tls: " + s
-	}
-	return "tls: alert(" + strconv.Itoa(int(e)) + ")"
-}
-
-func (e alert) Error() string {
-	return e.String()
-}

transport/cloudflaretls/auth.go

@@ -1,345 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package tls
-
-import (
-	"bytes"
-	"crypto"
-	"crypto/ecdsa"
-	"crypto/ed25519"
-	"crypto/elliptic"
-	"crypto/rsa"
-	"errors"
-	"fmt"
-	"hash"
-	"io"
-
-	circlPki "github.com/cloudflare/circl/pki"
-	circlSign "github.com/cloudflare/circl/sign"
-)
-
-// verifyHandshakeSignature verifies a signature against pre-hashed
-// (if required) handshake contents.
-func verifyHandshakeSignature(sigType uint8, pubkey crypto.PublicKey, hashFunc crypto.Hash, signed, sig []byte) error {
-	switch sigType {
-	case signatureECDSA:
-		pubKey, ok := pubkey.(*ecdsa.PublicKey)
-		if !ok {
-			return fmt.Errorf("expected an ECDSA public key, got %T", pubkey)
-		}
-		if !ecdsa.VerifyASN1(pubKey, signed, sig) {
-			return errors.New("ECDSA verification failure")
-		}
-	case signatureEd25519:
-		pubKey, ok := pubkey.(ed25519.PublicKey)
-		if !ok {
-			return fmt.Errorf("expected an Ed25519 public key, got %T", pubkey)
-		}
-		if !ed25519.Verify(pubKey, signed, sig) {
-			return errors.New("Ed25519 verification failure")
-		}
-	case signaturePKCS1v15:
-		pubKey, ok := pubkey.(*rsa.PublicKey)
-		if !ok {
-			return fmt.Errorf("expected an RSA public key, got %T", pubkey)
-		}
-		if err := rsa.VerifyPKCS1v15(pubKey, hashFunc, signed, sig); err != nil {
-			return err
-		}
-	case signatureRSAPSS:
-		pubKey, ok := pubkey.(*rsa.PublicKey)
-		if !ok {
-			return fmt.Errorf("expected an RSA public key, got %T", pubkey)
-		}
-		signOpts := &rsa.PSSOptions{SaltLength: rsa.PSSSaltLengthEqualsHash}
-		if err := rsa.VerifyPSS(pubKey, hashFunc, signed, sig, signOpts); err != nil {
-			return err
-		}
-	default:
-		scheme := circlSchemeBySigType(sigType)
-		if scheme == nil {
-			return errors.New("internal error: unknown signature type")
-		}
-		pubKey, ok := pubkey.(circlSign.PublicKey)
-		if !ok {
-			return fmt.Errorf("expected a %s public key, got %T", scheme.Name(), pubkey)
-		}
-		if !scheme.Verify(pubKey, signed, sig, nil) {
-			return fmt.Errorf("%s verification failure", scheme.Name())
-		}
-	}
-	return nil
-}
-
-const (
-	serverSignatureContext = "TLS 1.3, server CertificateVerify\x00"
-	clientSignatureContext = "TLS 1.3, client CertificateVerify\x00"
-)
-
-var signaturePadding = []byte{
-	0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-	0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-	0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-	0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-	0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-	0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-	0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-	0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-}
-
-// signedMessage returns the pre-hashed (if necessary) message to be signed by
-// certificate keys in TLS 1.3. See RFC 8446, Section 4.4.3.
-func signedMessage(sigHash crypto.Hash, context string, transcript hash.Hash) []byte {
-	if sigHash == directSigning {
-		b := &bytes.Buffer{}
-		b.Write(signaturePadding)
-		io.WriteString(b, context)
-		b.Write(transcript.Sum(nil))
-		return b.Bytes()
-	}
-	h := sigHash.New()
-	h.Write(signaturePadding)
-	io.WriteString(h, context)
-	h.Write(transcript.Sum(nil))
-	return h.Sum(nil)
-}
-
-// typeAndHashFromSignatureScheme returns the corresponding signature type and
-// crypto.Hash for a given TLS SignatureScheme.
-func typeAndHashFromSignatureScheme(signatureAlgorithm SignatureScheme) (sigType uint8, hash crypto.Hash, err error) {
-	switch signatureAlgorithm {
-	case PKCS1WithSHA1, PKCS1WithSHA256, PKCS1WithSHA384, PKCS1WithSHA512:
-		sigType = signaturePKCS1v15
-	case PSSWithSHA256, PSSWithSHA384, PSSWithSHA512:
-		sigType = signatureRSAPSS
-	case ECDSAWithSHA1, ECDSAWithP256AndSHA256, ECDSAWithP384AndSHA384, ECDSAWithP521AndSHA512:
-		sigType = signatureECDSA
-	case Ed25519:
-		sigType = signatureEd25519
-	default:
-		scheme := circlPki.SchemeByTLSID(uint(signatureAlgorithm))
-		if scheme == nil {
-			return 0, 0, fmt.Errorf("unsupported signature algorithm: %v", signatureAlgorithm)
-		}
-		sigType = sigTypeByCirclScheme(scheme)
-		if sigType == 0 {
-			return 0, 0, fmt.Errorf("github.com/cloudflare/circl scheme %s not supported",
-				scheme.Name())
-		}
-	}
-	switch signatureAlgorithm {
-	case PKCS1WithSHA1, ECDSAWithSHA1:
-		hash = crypto.SHA1
-	case PKCS1WithSHA256, PSSWithSHA256, ECDSAWithP256AndSHA256:
-		hash = crypto.SHA256
-	case PKCS1WithSHA384, PSSWithSHA384, ECDSAWithP384AndSHA384:
-		hash = crypto.SHA384
-	case PKCS1WithSHA512, PSSWithSHA512, ECDSAWithP521AndSHA512:
-		hash = crypto.SHA512
-	case Ed25519:
-		hash = directSigning
-	default:
-		scheme := circlPki.SchemeByTLSID(uint(signatureAlgorithm))
-		if scheme == nil {
-			return 0, 0, fmt.Errorf("unsupported signature algorithm: %v", signatureAlgorithm)
-		}
-		hash = directSigning
-	}
-	return sigType, hash, nil
-}
-
-// legacyTypeAndHashFromPublicKey returns the fixed signature type and crypto.Hash for
-// a given public key used with TLS 1.0 and 1.1, before the introduction of
-// signature algorithm negotiation.
-func legacyTypeAndHashFromPublicKey(pub crypto.PublicKey) (sigType uint8, hash crypto.Hash, err error) {
-	switch pub.(type) {
-	case *rsa.PublicKey:
-		return signaturePKCS1v15, crypto.MD5SHA1, nil
-	case *ecdsa.PublicKey:
-		return signatureECDSA, crypto.SHA1, nil
-	case ed25519.PublicKey:
-		// RFC 8422 specifies support for Ed25519 in TLS 1.0 and 1.1,
-		// but it requires holding on to a handshake transcript to do a
-		// full signature, and not even OpenSSL bothers with the
-		// complexity, so we can't even test it properly.
-		return 0, 0, fmt.Errorf("tls: Ed25519 public keys are not supported before TLS 1.2")
-	case circlSign.PublicKey:
-		return 0, 0, fmt.Errorf("tls: circl public keys are not supported before TLS 1.2")
-	default:
-		return 0, 0, fmt.Errorf("tls: unsupported public key: %T", pub)
-	}
-}
-
-var rsaSignatureSchemes = []struct {
-	scheme          SignatureScheme
-	minModulusBytes int
-	maxVersion      uint16
-}{
-	// RSA-PSS is used with PSSSaltLengthEqualsHash, and requires
-	//    emLen >= hLen + sLen + 2
-	{PSSWithSHA256, crypto.SHA256.Size()*2 + 2, VersionTLS13},
-	{PSSWithSHA384, crypto.SHA384.Size()*2 + 2, VersionTLS13},
-	{PSSWithSHA512, crypto.SHA512.Size()*2 + 2, VersionTLS13},
-	// PKCS #1 v1.5 uses prefixes from hashPrefixes in crypto/rsa, and requires
-	//    emLen >= len(prefix) + hLen + 11
-	// TLS 1.3 dropped support for PKCS #1 v1.5 in favor of RSA-PSS.
-	{PKCS1WithSHA256, 19 + crypto.SHA256.Size() + 11, VersionTLS12},
-	{PKCS1WithSHA384, 19 + crypto.SHA384.Size() + 11, VersionTLS12},
-	{PKCS1WithSHA512, 19 + crypto.SHA512.Size() + 11, VersionTLS12},
-	{PKCS1WithSHA1, 15 + crypto.SHA1.Size() + 11, VersionTLS12},
-}
-
-// signatureSchemesForCertificate returns the list of supported SignatureSchemes
-// for a given certificate, based on the public key and the protocol version,
-// and optionally filtered by its explicit SupportedSignatureAlgorithms.
-//
-// This function must be kept in sync with supportedSignatureAlgorithms.
-func signatureSchemesForCertificate(version uint16, cert *Certificate) []SignatureScheme {
-	priv, ok := cert.PrivateKey.(crypto.Signer)
-	if !ok {
-		return nil
-	}
-
-	var sigAlgs []SignatureScheme
-	switch pub := priv.Public().(type) {
-	case *ecdsa.PublicKey:
-		if version != VersionTLS13 {
-			// In TLS 1.2 and earlier, ECDSA algorithms are not
-			// constrained to a single curve.
-			sigAlgs = []SignatureScheme{
-				ECDSAWithP256AndSHA256,
-				ECDSAWithP384AndSHA384,
-				ECDSAWithP521AndSHA512,
-				ECDSAWithSHA1,
-			}
-			break
-		}
-		switch pub.Curve {
-		case elliptic.P256():
-			sigAlgs = []SignatureScheme{ECDSAWithP256AndSHA256}
-		case elliptic.P384():
-			sigAlgs = []SignatureScheme{ECDSAWithP384AndSHA384}
-		case elliptic.P521():
-			sigAlgs = []SignatureScheme{ECDSAWithP521AndSHA512}
-		default:
-			return nil
-		}
-	case *rsa.PublicKey:
-		size := pub.Size()
-		sigAlgs = make([]SignatureScheme, 0, len(rsaSignatureSchemes))
-		for _, candidate := range rsaSignatureSchemes {
-			if size >= candidate.minModulusBytes && version <= candidate.maxVersion {
-				sigAlgs = append(sigAlgs, candidate.scheme)
-			}
-		}
-	case ed25519.PublicKey:
-		sigAlgs = []SignatureScheme{Ed25519}
-	case circlSign.PublicKey:
-		scheme := pub.Scheme()
-		tlsScheme, ok := scheme.(circlPki.TLSScheme)
-		if !ok {
-			return nil
-		}
-		sigAlgs = []SignatureScheme{SignatureScheme(tlsScheme.TLSIdentifier())}
-	default:
-		return nil
-	}
-
-	if cert.SupportedSignatureAlgorithms != nil {
-		var filteredSigAlgs []SignatureScheme
-		for _, sigAlg := range sigAlgs {
-			if isSupportedSignatureAlgorithm(sigAlg, cert.SupportedSignatureAlgorithms) {
-				filteredSigAlgs = append(filteredSigAlgs, sigAlg)
-			}
-		}
-		return filteredSigAlgs
-	}
-	return sigAlgs
-}
-
-// selectSignatureSchemeDC picks a SignatureScheme from the peer's preference list
-// that works with the selected delegated credential. It's only called for protocol
-// versions that support delegated credential, so TLS 1.3.
-func selectSignatureSchemeDC(vers uint16, dc *DelegatedCredential, peerAlgs []SignatureScheme, peerAlgsDC []SignatureScheme) (SignatureScheme, error) {
-	if vers != VersionTLS13 {
-		return 0, errors.New("unsupported TLS version for dc")
-	}
-
-	if !isSupportedSignatureAlgorithm(dc.algorithm, peerAlgs) {
-		return undefinedSignatureScheme, errors.New("tls: peer doesn't support the delegated credential's signature")
-	}
-
-	// Pick signature scheme in the peer's preference order, as our
-	// preference order is not configurable.
-	for _, preferredAlg := range peerAlgsDC {
-		if preferredAlg == dc.cred.expCertVerfAlgo {
-			return preferredAlg, nil
-		}
-	}
-	return 0, errors.New("tls: peer doesn't support the delegated credential's signature algorithm")
-}
-
-// selectSignatureScheme picks a SignatureScheme from the peer's preference list
-// that works with the selected certificate. It's only called for protocol
-// versions that support signature algorithms, so TLS 1.2 and 1.3.
-func selectSignatureScheme(vers uint16, c *Certificate, peerAlgs []SignatureScheme) (SignatureScheme, error) {
-	supportedAlgs := signatureSchemesForCertificate(vers, c)
-	if len(supportedAlgs) == 0 {
-		return 0, unsupportedCertificateError(c)
-	}
-	if len(peerAlgs) == 0 && vers == VersionTLS12 {
-		// For TLS 1.2, if the client didn't send signature_algorithms then we
-		// can assume that it supports SHA1. See RFC 5246, Section 7.4.1.4.1.
-		peerAlgs = []SignatureScheme{PKCS1WithSHA1, ECDSAWithSHA1}
-	}
-	// Pick signature scheme in the peer's preference order, as our
-	// preference order is not configurable.
-	for _, preferredAlg := range peerAlgs {
-		if isSupportedSignatureAlgorithm(preferredAlg, supportedAlgs) {
-			return preferredAlg, nil
-		}
-	}
-	return 0, errors.New("tls: peer doesn't support any of the certificate's signature algorithms")
-}
-
-// unsupportedCertificateError returns a helpful error for certificates with
-// an unsupported private key.
-func unsupportedCertificateError(cert *Certificate) error {
-	switch cert.PrivateKey.(type) {
-	case rsa.PrivateKey, ecdsa.PrivateKey:
-		return fmt.Errorf("tls: unsupported certificate: private key is %T, expected *%T",
-			cert.PrivateKey, cert.PrivateKey)
-	case *ed25519.PrivateKey:
-		return fmt.Errorf("tls: unsupported certificate: private key is *ed25519.PrivateKey, expected ed25519.PrivateKey")
-	}
-
-	signer, ok := cert.PrivateKey.(crypto.Signer)
-	if !ok {
-		return fmt.Errorf("tls: certificate private key (%T) does not implement crypto.Signer",
-			cert.PrivateKey)
-	}
-
-	switch pub := signer.Public().(type) {
-	case *ecdsa.PublicKey:
-		switch pub.Curve {
-		case elliptic.P256():
-		case elliptic.P384():
-		case elliptic.P521():
-		default:
-			return fmt.Errorf("tls: unsupported certificate curve (%s)", pub.Curve.Params().Name)
-		}
-	case *rsa.PublicKey:
-		return fmt.Errorf("tls: certificate RSA key size too small for supported signature algorithms")
-	case ed25519.PublicKey:
-	default:
-		return fmt.Errorf("tls: unsupported certificate key (%T)", pub)
-	}
-
-	if cert.SupportedSignatureAlgorithms != nil {
-		return fmt.Errorf("tls: peer doesn't support the certificate custom signature algorithms")
-	}
-
-	return fmt.Errorf("tls: internal error: unsupported key (%T)", cert.PrivateKey)
-}

transport/cloudflaretls/cfkem.go

@@ -1,104 +0,0 @@
-// Copyright 2022 Cloudflare, Inc. All rights reserved. Use of this source code
-// is governed by a BSD-style license that can be found in the LICENSE file.
-//
-// Glue to add Circl's (post-quantum) hybrid KEMs.
-//
-// To enable set CurvePreferences with the desired scheme as the first element:
-//
-//   import (
-//      "github.com/cloudflare/circl/kem/tls"
-//      "github.com/cloudflare/circl/kem/hybrid"
-//
-//          [...]
-//
-//   config.CurvePreferences = []tls.CurveID{
-//      hybrid.X25519Kyber512Draft00().(tls.TLSScheme).TLSCurveID(),
-//      tls.X25519,
-//      tls.P256,
-//   }
-
-package tls
-
-import (
-	"fmt"
-	"io"
-
-	"github.com/cloudflare/circl/kem"
-	"github.com/cloudflare/circl/kem/hybrid"
-)
-
-// Either ecdheParameters or kem.PrivateKey
-type clientKeySharePrivate interface{}
-
-var (
-	X25519Kyber512Draft00 = CurveID(0xfe30)
-	X25519Kyber768Draft00 = CurveID(0xfe31)
-	invalidCurveID        = CurveID(0)
-)
-
-func kemSchemeKeyToCurveID(s kem.Scheme) CurveID {
-	switch s.Name() {
-	case "Kyber512-X25519":
-		return X25519Kyber512Draft00
-	case "Kyber768-X25519":
-		return X25519Kyber768Draft00
-	default:
-		return invalidCurveID
-	}
-}
-
-// Extract CurveID from clientKeySharePrivate
-func clientKeySharePrivateCurveID(ks clientKeySharePrivate) CurveID {
-	switch v := ks.(type) {
-	case kem.PrivateKey:
-		ret := kemSchemeKeyToCurveID(v.Scheme())
-		if ret == invalidCurveID {
-			panic("cfkem: internal error: don't know CurveID for this KEM")
-		}
-		return ret
-	case ecdheParameters:
-		return v.CurveID()
-	default:
-		panic("cfkem: internal error: unknown clientKeySharePrivate")
-	}
-}
-
-// Returns scheme by CurveID if supported by Circl
-func curveIdToCirclScheme(id CurveID) kem.Scheme {
-	switch id {
-	case X25519Kyber512Draft00:
-		return hybrid.Kyber512X25519()
-	case X25519Kyber768Draft00:
-		return hybrid.Kyber768X25519()
-	}
-	return nil
-}
-
-// Generate a new shared secret and encapsulates it for the packed
-// public key in ppk using randomness from rnd.
-func encapsulateForKem(scheme kem.Scheme, rnd io.Reader, ppk []byte) (
-	ct, ss []byte, alert alert, err error,
-) {
-	pk, err := scheme.UnmarshalBinaryPublicKey(ppk)
-	if err != nil {
-		return nil, nil, alertIllegalParameter, fmt.Errorf("unpack pk: %w", err)
-	}
-	seed := make([]byte, scheme.EncapsulationSeedSize())
-	if _, err := io.ReadFull(rnd, seed); err != nil {
-		return nil, nil, alertInternalError, fmt.Errorf("random: %w", err)
-	}
-	ct, ss, err = scheme.EncapsulateDeterministically(pk, seed)
-	return ct, ss, alertIllegalParameter, err
-}
-
-// Generate a new keypair using randomness from rnd.
-func generateKemKeyPair(scheme kem.Scheme, rnd io.Reader) (
-	kem.PublicKey, kem.PrivateKey, error,
-) {
-	seed := make([]byte, scheme.SeedSize())
-	if _, err := io.ReadFull(rnd, seed); err != nil {
-		return nil, nil, err
-	}
-	pk, sk := scheme.DeriveKeyPair(seed)
-	return pk, sk, nil
-}

transport/cloudflaretls/cipher_suites.go

@@ -1,688 +0,0 @@
-// Copyright 2010 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package tls
-
-import (
-	"crypto"
-	"crypto/aes"
-	"crypto/cipher"
-	"crypto/des"
-	"crypto/hmac"
-	"crypto/rc4"
-	"crypto/sha1"
-	"crypto/sha256"
-	"fmt"
-	"hash"
-	"runtime"
-
-	"golang.org/x/crypto/chacha20poly1305"
-	"golang.org/x/sys/cpu"
-)
-
-// CipherSuite is a TLS cipher suite. Note that most functions in this package
-// accept and expose cipher suite IDs instead of this type.
-type CipherSuite struct {
-	ID   uint16
-	Name string
-
-	// Supported versions is the list of TLS protocol versions that can
-	// negotiate this cipher suite.
-	SupportedVersions []uint16
-
-	// Insecure is true if the cipher suite has known security issues
-	// due to its primitives, design, or implementation.
-	Insecure bool
-}
-
-var (
-	supportedUpToTLS12 = []uint16{VersionTLS10, VersionTLS11, VersionTLS12}
-	supportedOnlyTLS12 = []uint16{VersionTLS12}
-	supportedOnlyTLS13 = []uint16{VersionTLS13}
-)
-
-// CipherSuites returns a list of cipher suites currently implemented by this
-// package, excluding those with security issues, which are returned by
-// InsecureCipherSuites.
-//
-// The list is sorted by ID. Note that the default cipher suites selected by
-// this package might depend on logic that can't be captured by a static list,
-// and might not match those returned by this function.
-func CipherSuites() []*CipherSuite {
-	return []*CipherSuite{
-		{TLS_RSA_WITH_AES_128_CBC_SHA, "TLS_RSA_WITH_AES_128_CBC_SHA", supportedUpToTLS12, false},
-		{TLS_RSA_WITH_AES_256_CBC_SHA, "TLS_RSA_WITH_AES_256_CBC_SHA", supportedUpToTLS12, false},
-		{TLS_RSA_WITH_AES_128_GCM_SHA256, "TLS_RSA_WITH_AES_128_GCM_SHA256", supportedOnlyTLS12, false},
-		{TLS_RSA_WITH_AES_256_GCM_SHA384, "TLS_RSA_WITH_AES_256_GCM_SHA384", supportedOnlyTLS12, false},
-
-		{TLS_AES_128_GCM_SHA256, "TLS_AES_128_GCM_SHA256", supportedOnlyTLS13, false},
-		{TLS_AES_256_GCM_SHA384, "TLS_AES_256_GCM_SHA384", supportedOnlyTLS13, false},
-		{TLS_CHACHA20_POLY1305_SHA256, "TLS_CHACHA20_POLY1305_SHA256", supportedOnlyTLS13, false},
-
-		{TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA", supportedUpToTLS12, false},
-		{TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA", supportedUpToTLS12, false},
-		{TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA", supportedUpToTLS12, false},
-		{TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA", supportedUpToTLS12, false},
-		{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256", supportedOnlyTLS12, false},
-		{TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, "TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384", supportedOnlyTLS12, false},
-		{TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256", supportedOnlyTLS12, false},
-		{TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384", supportedOnlyTLS12, false},
-		{TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256, "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256", supportedOnlyTLS12, false},
-		{TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256", supportedOnlyTLS12, false},
-	}
-}
-
-// InsecureCipherSuites returns a list of cipher suites currently implemented by
-// this package and which have security issues.
-//
-// Most applications should not use the cipher suites in this list, and should
-// only use those returned by CipherSuites.
-func InsecureCipherSuites() []*CipherSuite {
-	// This list includes RC4, CBC_SHA256, and 3DES cipher suites. See
-	// cipherSuitesPreferenceOrder for details.
-	return []*CipherSuite{
-		{TLS_RSA_WITH_RC4_128_SHA, "TLS_RSA_WITH_RC4_128_SHA", supportedUpToTLS12, true},
-		{TLS_RSA_WITH_3DES_EDE_CBC_SHA, "TLS_RSA_WITH_3DES_EDE_CBC_SHA", supportedUpToTLS12, true},
-		{TLS_RSA_WITH_AES_128_CBC_SHA256, "TLS_RSA_WITH_AES_128_CBC_SHA256", supportedOnlyTLS12, true},
-		{TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, "TLS_ECDHE_ECDSA_WITH_RC4_128_SHA", supportedUpToTLS12, true},
-		{TLS_ECDHE_RSA_WITH_RC4_128_SHA, "TLS_ECDHE_RSA_WITH_RC4_128_SHA", supportedUpToTLS12, true},
-		{TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, "TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA", supportedUpToTLS12, true},
-		{TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256", supportedOnlyTLS12, true},
-		{TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256", supportedOnlyTLS12, true},
-	}
-}
-
-// CipherSuiteName returns the standard name for the passed cipher suite ID
-// (e.g. "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256"), or a fallback representation
-// of the ID value if the cipher suite is not implemented by this package.
-func CipherSuiteName(id uint16) string {
-	for _, c := range CipherSuites() {
-		if c.ID == id {
-			return c.Name
-		}
-	}
-	for _, c := range InsecureCipherSuites() {
-		if c.ID == id {
-			return c.Name
-		}
-	}
-	return fmt.Sprintf("0x%04X", id)
-}
-
-const (
-	// suiteECDHE indicates that the cipher suite involves elliptic curve
-	// Diffie-Hellman. This means that it should only be selected when the
-	// client indicates that it supports ECC with a curve and point format
-	// that we're happy with.
-	suiteECDHE = 1 << iota
-	// suiteECSign indicates that the cipher suite involves an ECDSA or
-	// EdDSA signature and therefore may only be selected when the server's
-	// certificate is ECDSA or EdDSA. If this is not set then the cipher suite
-	// is RSA based.
-	suiteECSign
-	// suiteTLS12 indicates that the cipher suite should only be advertised
-	// and accepted when using TLS 1.2.
-	suiteTLS12
-	// suiteSHA384 indicates that the cipher suite uses SHA384 as the
-	// handshake hash.
-	suiteSHA384
-)
-
-// A cipherSuite is a TLS 1.0–1.2 cipher suite, and defines the key exchange
-// mechanism, as well as the cipher+MAC pair or the AEAD.
-type cipherSuite struct {
-	id uint16
-	// the lengths, in bytes, of the key material needed for each component.
-	keyLen int
-	macLen int
-	ivLen  int
-	ka     func(version uint16) keyAgreement
-	// flags is a bitmask of the suite* values, above.
-	flags  int
-	cipher func(key, iv []byte, isRead bool) any
-	mac    func(key []byte) hash.Hash
-	aead   func(key, fixedNonce []byte) aead
-}
-
-var cipherSuites = []*cipherSuite{ // TODO: replace with a map, since the order doesn't matter.
-	{TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305, 32, 0, 12, ecdheRSAKA, suiteECDHE | suiteTLS12, nil, nil, aeadChaCha20Poly1305},
-	{TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305, 32, 0, 12, ecdheECDSAKA, suiteECDHE | suiteECSign | suiteTLS12, nil, nil, aeadChaCha20Poly1305},
-	{TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, 16, 0, 4, ecdheRSAKA, suiteECDHE | suiteTLS12, nil, nil, aeadAESGCM},
-	{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, 16, 0, 4, ecdheECDSAKA, suiteECDHE | suiteECSign | suiteTLS12, nil, nil, aeadAESGCM},
-	{TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, 32, 0, 4, ecdheRSAKA, suiteECDHE | suiteTLS12 | suiteSHA384, nil, nil, aeadAESGCM},
-	{TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, 32, 0, 4, ecdheECDSAKA, suiteECDHE | suiteECSign | suiteTLS12 | suiteSHA384, nil, nil, aeadAESGCM},
-	{TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, 16, 32, 16, ecdheRSAKA, suiteECDHE | suiteTLS12, cipherAES, macSHA256, nil},
-	{TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, 16, 20, 16, ecdheRSAKA, suiteECDHE, cipherAES, macSHA1, nil},
-	{TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, 16, 32, 16, ecdheECDSAKA, suiteECDHE | suiteECSign | suiteTLS12, cipherAES, macSHA256, nil},
-	{TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, 16, 20, 16, ecdheECDSAKA, suiteECDHE | suiteECSign, cipherAES, macSHA1, nil},
-	{TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, 32, 20, 16, ecdheRSAKA, suiteECDHE, cipherAES, macSHA1, nil},
-	{TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, 32, 20, 16, ecdheECDSAKA, suiteECDHE | suiteECSign, cipherAES, macSHA1, nil},
-	{TLS_RSA_WITH_AES_128_GCM_SHA256, 16, 0, 4, rsaKA, suiteTLS12, nil, nil, aeadAESGCM},
-	{TLS_RSA_WITH_AES_256_GCM_SHA384, 32, 0, 4, rsaKA, suiteTLS12 | suiteSHA384, nil, nil, aeadAESGCM},
-	{TLS_RSA_WITH_AES_128_CBC_SHA256, 16, 32, 16, rsaKA, suiteTLS12, cipherAES, macSHA256, nil},
-	{TLS_RSA_WITH_AES_128_CBC_SHA, 16, 20, 16, rsaKA, 0, cipherAES, macSHA1, nil},
-	{TLS_RSA_WITH_AES_256_CBC_SHA, 32, 20, 16, rsaKA, 0, cipherAES, macSHA1, nil},
-	{TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, 24, 20, 8, ecdheRSAKA, suiteECDHE, cipher3DES, macSHA1, nil},
-	{TLS_RSA_WITH_3DES_EDE_CBC_SHA, 24, 20, 8, rsaKA, 0, cipher3DES, macSHA1, nil},
-	{TLS_RSA_WITH_RC4_128_SHA, 16, 20, 0, rsaKA, 0, cipherRC4, macSHA1, nil},
-	{TLS_ECDHE_RSA_WITH_RC4_128_SHA, 16, 20, 0, ecdheRSAKA, suiteECDHE, cipherRC4, macSHA1, nil},
-	{TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, 16, 20, 0, ecdheECDSAKA, suiteECDHE | suiteECSign, cipherRC4, macSHA1, nil},
-}
-
-// selectCipherSuite returns the first TLS 1.0–1.2 cipher suite from ids which
-// is also in supportedIDs and passes the ok filter.
-func selectCipherSuite(ids, supportedIDs []uint16, ok func(*cipherSuite) bool) *cipherSuite {
-	for _, id := range ids {
-		candidate := cipherSuiteByID(id)
-		if candidate == nil || !ok(candidate) {
-			continue
-		}
-
-		for _, suppID := range supportedIDs {
-			if id == suppID {
-				return candidate
-			}
-		}
-	}
-	return nil
-}
-
-// A cipherSuiteTLS13 defines only the pair of the AEAD algorithm and hash
-// algorithm to be used with HKDF. See RFC 8446, Appendix B.4.
-type cipherSuiteTLS13 struct {
-	id     uint16
-	keyLen int
-	aead   func(key, fixedNonce []byte) aead
-	hash   crypto.Hash
-}
-
-var cipherSuitesTLS13 = []*cipherSuiteTLS13{ // TODO: replace with a map.
-	{TLS_AES_128_GCM_SHA256, 16, aeadAESGCMTLS13, crypto.SHA256},
-	{TLS_CHACHA20_POLY1305_SHA256, 32, aeadChaCha20Poly1305, crypto.SHA256},
-	{TLS_AES_256_GCM_SHA384, 32, aeadAESGCMTLS13, crypto.SHA384},
-}
-
-// cipherSuitesPreferenceOrder is the order in which we'll select (on the
-// server) or advertise (on the client) TLS 1.0–1.2 cipher suites.
-//
-// Cipher suites are filtered but not reordered based on the application and
-// peer's preferences, meaning we'll never select a suite lower in this list if
-// any higher one is available. This makes it more defensible to keep weaker
-// cipher suites enabled, especially on the server side where we get the last
-// word, since there are no known downgrade attacks on cipher suites selection.
-//
-// The list is sorted by applying the following priority rules, stopping at the
-// first (most important) applicable one:
-//
-//   - Anything else comes before RC4
-//
-//     RC4 has practically exploitable biases. See https://www.rc4nomore.com.
-//
-//   - Anything else comes before CBC_SHA256
-//
-//     SHA-256 variants of the CBC ciphersuites don't implement any Lucky13
-//     countermeasures. See http://www.isg.rhul.ac.uk/tls/Lucky13.html and
-//     https://www.imperialviolet.org/2013/02/04/luckythirteen.html.
-//
-//   - Anything else comes before 3DES
-//
-//     3DES has 64-bit blocks, which makes it fundamentally susceptible to
-//     birthday attacks. See https://sweet32.info.
-//
-//   - ECDHE comes before anything else
-//
-//     Once we got the broken stuff out of the way, the most important
-//     property a cipher suite can have is forward secrecy. We don't
-//     implement FFDHE, so that means ECDHE.
-//
-//   - AEADs come before CBC ciphers
-//
-//     Even with Lucky13 countermeasures, MAC-then-Encrypt CBC cipher suites
-//     are fundamentally fragile, and suffered from an endless sequence of
-//     padding oracle attacks. See https://eprint.iacr.org/2015/1129,
-//     https://www.imperialviolet.org/2014/12/08/poodleagain.html, and
-//     https://blog.cloudflare.com/yet-another-padding-oracle-in-openssl-cbc-ciphersuites/.
-//
-//   - AES comes before ChaCha20
-//
-//     When AES hardware is available, AES-128-GCM and AES-256-GCM are faster
-//     than ChaCha20Poly1305.
-//
-//     When AES hardware is not available, AES-128-GCM is one or more of: much
-//     slower, way more complex, and less safe (because not constant time)
-//     than ChaCha20Poly1305.
-//
-//     We use this list if we think both peers have AES hardware, and
-//     cipherSuitesPreferenceOrderNoAES otherwise.
-//
-//   - AES-128 comes before AES-256
-//
-//     The only potential advantages of AES-256 are better multi-target
-//     margins, and hypothetical post-quantum properties. Neither apply to
-//     TLS, and AES-256 is slower due to its four extra rounds (which don't
-//     contribute to the advantages above).
-//
-//   - ECDSA comes before RSA
-//
-//     The relative order of ECDSA and RSA cipher suites doesn't matter,
-//     as they depend on the certificate. Pick one to get a stable order.
-var cipherSuitesPreferenceOrder = []uint16{
-	// AEADs w/ ECDHE
-	TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
-	TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
-	TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305, TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
-
-	// CBC w/ ECDHE
-	TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
-	TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
-
-	// AEADs w/o ECDHE
-	TLS_RSA_WITH_AES_128_GCM_SHA256,
-	TLS_RSA_WITH_AES_256_GCM_SHA384,
-
-	// CBC w/o ECDHE
-	TLS_RSA_WITH_AES_128_CBC_SHA,
-	TLS_RSA_WITH_AES_256_CBC_SHA,
-
-	// 3DES
-	TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
-	TLS_RSA_WITH_3DES_EDE_CBC_SHA,
-
-	// CBC_SHA256
-	TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
-	TLS_RSA_WITH_AES_128_CBC_SHA256,
-
-	// RC4
-	TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, TLS_ECDHE_RSA_WITH_RC4_128_SHA,
-	TLS_RSA_WITH_RC4_128_SHA,
-}
-
-var cipherSuitesPreferenceOrderNoAES = []uint16{
-	// ChaCha20Poly1305
-	TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305, TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
-
-	// AES-GCM w/ ECDHE
-	TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
-	TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
-
-	// The rest of cipherSuitesPreferenceOrder.
-	TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
-	TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
-	TLS_RSA_WITH_AES_128_GCM_SHA256,
-	TLS_RSA_WITH_AES_256_GCM_SHA384,
-	TLS_RSA_WITH_AES_128_CBC_SHA,
-	TLS_RSA_WITH_AES_256_CBC_SHA,
-	TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
-	TLS_RSA_WITH_3DES_EDE_CBC_SHA,
-	TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
-	TLS_RSA_WITH_AES_128_CBC_SHA256,
-	TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, TLS_ECDHE_RSA_WITH_RC4_128_SHA,
-	TLS_RSA_WITH_RC4_128_SHA,
-}
-
-// disabledCipherSuites are not used unless explicitly listed in
-// Config.CipherSuites. They MUST be at the end of cipherSuitesPreferenceOrder.
-var disabledCipherSuites = []uint16{
-	// CBC_SHA256
-	TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
-	TLS_RSA_WITH_AES_128_CBC_SHA256,
-
-	// RC4
-	TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, TLS_ECDHE_RSA_WITH_RC4_128_SHA,
-	TLS_RSA_WITH_RC4_128_SHA,
-}
-
-var (
-	defaultCipherSuitesLen = len(cipherSuitesPreferenceOrder) - len(disabledCipherSuites)
-	defaultCipherSuites    = cipherSuitesPreferenceOrder[:defaultCipherSuitesLen]
-)
-
-// defaultCipherSuitesTLS13 is also the preference order, since there are no
-// disabled by default TLS 1.3 cipher suites. The same AES vs ChaCha20 logic as
-// cipherSuitesPreferenceOrder applies.
-var defaultCipherSuitesTLS13 = []uint16{
-	TLS_AES_128_GCM_SHA256,
-	TLS_AES_256_GCM_SHA384,
-	TLS_CHACHA20_POLY1305_SHA256,
-}
-
-var defaultCipherSuitesTLS13NoAES = []uint16{
-	TLS_CHACHA20_POLY1305_SHA256,
-	TLS_AES_128_GCM_SHA256,
-	TLS_AES_256_GCM_SHA384,
-}
-
-var (
-	hasGCMAsmAMD64 = cpu.X86.HasAES && cpu.X86.HasPCLMULQDQ
-	hasGCMAsmARM64 = cpu.ARM64.HasAES && cpu.ARM64.HasPMULL
-	// Keep in sync with crypto/aes/cipher_s390x.go.
-	hasGCMAsmS390X = cpu.S390X.HasAES && cpu.S390X.HasAESCBC && cpu.S390X.HasAESCTR &&
-		(cpu.S390X.HasGHASH || cpu.S390X.HasAESGCM)
-
-	hasAESGCMHardwareSupport = runtime.GOARCH == "amd64" && hasGCMAsmAMD64 ||
-		runtime.GOARCH == "arm64" && hasGCMAsmARM64 ||
-		runtime.GOARCH == "s390x" && hasGCMAsmS390X
-)
-
-var aesgcmCiphers = map[uint16]bool{
-	// TLS 1.2
-	TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256:   true,
-	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384:   true,
-	TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256: true,
-	TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384: true,
-	// TLS 1.3
-	TLS_AES_128_GCM_SHA256: true,
-	TLS_AES_256_GCM_SHA384: true,
-}
-
-var nonAESGCMAEADCiphers = map[uint16]bool{
-	// TLS 1.2
-	TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305:   true,
-	TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305: true,
-	// TLS 1.3
-	TLS_CHACHA20_POLY1305_SHA256: true,
-}
-
-// aesgcmPreferred returns whether the first known cipher in the preference list
-// is an AES-GCM cipher, implying the peer has hardware support for it.
-func aesgcmPreferred(ciphers []uint16) bool {
-	for _, cID := range ciphers {
-		if c := cipherSuiteByID(cID); c != nil {
-			return aesgcmCiphers[cID]
-		}
-		if c := cipherSuiteTLS13ByID(cID); c != nil {
-			return aesgcmCiphers[cID]
-		}
-	}
-	return false
-}
-
-func cipherRC4(key, iv []byte, isRead bool) any {
-	cipher, _ := rc4.NewCipher(key)
-	return cipher
-}
-
-func cipher3DES(key, iv []byte, isRead bool) any {
-	block, _ := des.NewTripleDESCipher(key)
-	if isRead {
-		return cipher.NewCBCDecrypter(block, iv)
-	}
-	return cipher.NewCBCEncrypter(block, iv)
-}
-
-func cipherAES(key, iv []byte, isRead bool) any {
-	block, _ := aes.NewCipher(key)
-	if isRead {
-		return cipher.NewCBCDecrypter(block, iv)
-	}
-	return cipher.NewCBCEncrypter(block, iv)
-}
-
-// macSHA1 returns a SHA-1 based constant time MAC.
-func macSHA1(key []byte) hash.Hash {
-	return hmac.New(newConstantTimeHash(sha1.New), key)
-}
-
-// macSHA256 returns a SHA-256 based MAC. This is only supported in TLS 1.2 and
-// is currently only used in disabled-by-default cipher suites.
-func macSHA256(key []byte) hash.Hash {
-	return hmac.New(sha256.New, key)
-}
-
-type aead interface {
-	cipher.AEAD
-
-	// explicitNonceLen returns the number of bytes of explicit nonce
-	// included in each record. This is eight for older AEADs and
-	// zero for modern ones.
-	explicitNonceLen() int
-}
-
-const (
-	aeadNonceLength   = 12
-	noncePrefixLength = 4
-)
-
-// prefixNonceAEAD wraps an AEAD and prefixes a fixed portion of the nonce to
-// each call.
-type prefixNonceAEAD struct {
-	// nonce contains the fixed part of the nonce in the first four bytes.
-	nonce [aeadNonceLength]byte
-	aead  cipher.AEAD
-}
-
-func (f *prefixNonceAEAD) NonceSize() int        { return aeadNonceLength - noncePrefixLength }
-func (f *prefixNonceAEAD) Overhead() int         { return f.aead.Overhead() }
-func (f *prefixNonceAEAD) explicitNonceLen() int { return f.NonceSize() }
-
-func (f *prefixNonceAEAD) Seal(out, nonce, plaintext, additionalData []byte) []byte {
-	copy(f.nonce[4:], nonce)
-	return f.aead.Seal(out, f.nonce[:], plaintext, additionalData)
-}
-
-func (f *prefixNonceAEAD) Open(out, nonce, ciphertext, additionalData []byte) ([]byte, error) {
-	copy(f.nonce[4:], nonce)
-	return f.aead.Open(out, f.nonce[:], ciphertext, additionalData)
-}
-
-// xoredNonceAEAD wraps an AEAD by XORing in a fixed pattern to the nonce
-// before each call.
-type xorNonceAEAD struct {
-	nonceMask [aeadNonceLength]byte
-	aead      cipher.AEAD
-}
-
-func (f *xorNonceAEAD) NonceSize() int        { return 8 } // 64-bit sequence number
-func (f *xorNonceAEAD) Overhead() int         { return f.aead.Overhead() }
-func (f *xorNonceAEAD) explicitNonceLen() int { return 0 }
-
-func (f *xorNonceAEAD) Seal(out, nonce, plaintext, additionalData []byte) []byte {
-	for i, b := range nonce {
-		f.nonceMask[4+i] ^= b
-	}
-	result := f.aead.Seal(out, f.nonceMask[:], plaintext, additionalData)
-	for i, b := range nonce {
-		f.nonceMask[4+i] ^= b
-	}
-
-	return result
-}
-
-func (f *xorNonceAEAD) Open(out, nonce, ciphertext, additionalData []byte) ([]byte, error) {
-	for i, b := range nonce {
-		f.nonceMask[4+i] ^= b
-	}
-	result, err := f.aead.Open(out, f.nonceMask[:], ciphertext, additionalData)
-	for i, b := range nonce {
-		f.nonceMask[4+i] ^= b
-	}
-
-	return result, err
-}
-
-func aeadAESGCM(key, noncePrefix []byte) aead {
-	if len(noncePrefix) != noncePrefixLength {
-		panic("tls: internal error: wrong nonce length")
-	}
-	aes, err := aes.NewCipher(key)
-	if err != nil {
-		panic(err)
-	}
-	aead, err := cipher.NewGCM(aes)
-	if err != nil {
-		panic(err)
-	}
-
-	ret := &prefixNonceAEAD{aead: aead}
-	copy(ret.nonce[:], noncePrefix)
-	return ret
-}
-
-func aeadAESGCMTLS13(key, nonceMask []byte) aead {
-	if len(nonceMask) != aeadNonceLength {
-		panic("tls: internal error: wrong nonce length")
-	}
-	aes, err := aes.NewCipher(key)
-	if err != nil {
-		panic(err)
-	}
-	aead, err := cipher.NewGCM(aes)
-	if err != nil {
-		panic(err)
-	}
-
-	ret := &xorNonceAEAD{aead: aead}
-	copy(ret.nonceMask[:], nonceMask)
-	return ret
-}
-
-func aeadChaCha20Poly1305(key, nonceMask []byte) aead {
-	if len(nonceMask) != aeadNonceLength {
-		panic("tls: internal error: wrong nonce length")
-	}
-	aead, err := chacha20poly1305.New(key)
-	if err != nil {
-		panic(err)
-	}
-
-	ret := &xorNonceAEAD{aead: aead}
-	copy(ret.nonceMask[:], nonceMask)
-	return ret
-}
-
-type constantTimeHash interface {
-	hash.Hash
-	ConstantTimeSum(b []byte) []byte
-}
-
-// cthWrapper wraps any hash.Hash that implements ConstantTimeSum, and replaces
-// with that all calls to Sum. It's used to obtain a ConstantTimeSum-based HMAC.
-type cthWrapper struct {
-	h constantTimeHash
-}
-
-func (c *cthWrapper) Size() int                   { return c.h.Size() }
-func (c *cthWrapper) BlockSize() int              { return c.h.BlockSize() }
-func (c *cthWrapper) Reset()                      { c.h.Reset() }
-func (c *cthWrapper) Write(p []byte) (int, error) { return c.h.Write(p) }
-func (c *cthWrapper) Sum(b []byte) []byte         { return c.h.ConstantTimeSum(b) }
-
-func newConstantTimeHash(h func() hash.Hash) func() hash.Hash {
-	return func() hash.Hash {
-		return &cthWrapper{h().(constantTimeHash)}
-	}
-}
-
-// tls10MAC implements the TLS 1.0 MAC function. RFC 2246, Section 6.2.3.
-func tls10MAC(h hash.Hash, out, seq, header, data, extra []byte) []byte {
-	h.Reset()
-	h.Write(seq)
-	h.Write(header)
-	h.Write(data)
-	res := h.Sum(out)
-	if extra != nil {
-		h.Write(extra)
-	}
-	return res
-}
-
-func rsaKA(version uint16) keyAgreement {
-	return rsaKeyAgreement{}
-}
-
-func ecdheECDSAKA(version uint16) keyAgreement {
-	return &ecdheKeyAgreement{
-		isRSA:   false,
-		version: version,
-	}
-}
-
-func ecdheRSAKA(version uint16) keyAgreement {
-	return &ecdheKeyAgreement{
-		isRSA:   true,
-		version: version,
-	}
-}
-
-// mutualCipherSuite returns a cipherSuite given a list of supported
-// ciphersuites and the id requested by the peer.
-func mutualCipherSuite(have []uint16, want uint16) *cipherSuite {
-	for _, id := range have {
-		if id == want {
-			return cipherSuiteByID(id)
-		}
-	}
-	return nil
-}
-
-func cipherSuiteByID(id uint16) *cipherSuite {
-	for _, cipherSuite := range cipherSuites {
-		if cipherSuite.id == id {
-			return cipherSuite
-		}
-	}
-	return nil
-}
-
-func mutualCipherSuiteTLS13(have []uint16, want uint16) *cipherSuiteTLS13 {
-	for _, id := range have {
-		if id == want {
-			return cipherSuiteTLS13ByID(id)
-		}
-	}
-	return nil
-}
-
-func cipherSuiteTLS13ByID(id uint16) *cipherSuiteTLS13 {
-	for _, cipherSuite := range cipherSuitesTLS13 {
-		if cipherSuite.id == id {
-			return cipherSuite
-		}
-	}
-	return nil
-}
-
-// A list of cipher suite IDs that are, or have been, implemented by this
-// package.
-//
-// See https://www.iana.org/assignments/tls-parameters/tls-parameters.xml
-const (
-	// TLS 1.0 - 1.2 cipher suites.
-	TLS_RSA_WITH_RC4_128_SHA                      uint16 = 0x0005
-	TLS_RSA_WITH_3DES_EDE_CBC_SHA                 uint16 = 0x000a
-	TLS_RSA_WITH_AES_128_CBC_SHA                  uint16 = 0x002f
-	TLS_RSA_WITH_AES_256_CBC_SHA                  uint16 = 0x0035
-	TLS_RSA_WITH_AES_128_CBC_SHA256               uint16 = 0x003c
-	TLS_RSA_WITH_AES_128_GCM_SHA256               uint16 = 0x009c
-	TLS_RSA_WITH_AES_256_GCM_SHA384               uint16 = 0x009d
-	TLS_ECDHE_ECDSA_WITH_RC4_128_SHA              uint16 = 0xc007
-	TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA          uint16 = 0xc009
-	TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA          uint16 = 0xc00a
-	TLS_ECDHE_RSA_WITH_RC4_128_SHA                uint16 = 0xc011
-	TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA           uint16 = 0xc012
-	TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA            uint16 = 0xc013
-	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA            uint16 = 0xc014
-	TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256       uint16 = 0xc023
-	TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256         uint16 = 0xc027
-	TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256         uint16 = 0xc02f
-	TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256       uint16 = 0xc02b
-	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384         uint16 = 0xc030
-	TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384       uint16 = 0xc02c
-	TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256   uint16 = 0xcca8
-	TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 uint16 = 0xcca9
-
-	// TLS 1.3 cipher suites.
-	TLS_AES_128_GCM_SHA256       uint16 = 0x1301
-	TLS_AES_256_GCM_SHA384       uint16 = 0x1302
-	TLS_CHACHA20_POLY1305_SHA256 uint16 = 0x1303
-
-	// TLS_FALLBACK_SCSV isn't a standard cipher suite but an indicator
-	// that the client is doing version fallback. See RFC 7507.
-	TLS_FALLBACK_SCSV uint16 = 0x5600
-
-	// Legacy names for the corresponding cipher suites with the correct _SHA256
-	// suffix, retained for backward compatibility.
-	TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305   = TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
-	TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305 = TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
-)

transport/cloudflaretls/common_string.go

@@ -1,116 +0,0 @@
-// Code generated by "stringer -type=SignatureScheme,CurveID,ClientAuthType -output=common_string.go"; DO NOT EDIT.
-
-package tls
-
-import "strconv"
-
-func _() {
-	// An "invalid array index" compiler error signifies that the constant values have changed.
-	// Re-run the stringer command to generate them again.
-	var x [1]struct{}
-	_ = x[PKCS1WithSHA256-1025]
-	_ = x[PKCS1WithSHA384-1281]
-	_ = x[PKCS1WithSHA512-1537]
-	_ = x[PSSWithSHA256-2052]
-	_ = x[PSSWithSHA384-2053]
-	_ = x[PSSWithSHA512-2054]
-	_ = x[ECDSAWithP256AndSHA256-1027]
-	_ = x[ECDSAWithP384AndSHA384-1283]
-	_ = x[ECDSAWithP521AndSHA512-1539]
-	_ = x[Ed25519-2055]
-	_ = x[PKCS1WithSHA1-513]
-	_ = x[ECDSAWithSHA1-515]
-}
-
-const (
-	_SignatureScheme_name_0 = "PKCS1WithSHA1"
-	_SignatureScheme_name_1 = "ECDSAWithSHA1"
-	_SignatureScheme_name_2 = "PKCS1WithSHA256"
-	_SignatureScheme_name_3 = "ECDSAWithP256AndSHA256"
-	_SignatureScheme_name_4 = "PKCS1WithSHA384"
-	_SignatureScheme_name_5 = "ECDSAWithP384AndSHA384"
-	_SignatureScheme_name_6 = "PKCS1WithSHA512"
-	_SignatureScheme_name_7 = "ECDSAWithP521AndSHA512"
-	_SignatureScheme_name_8 = "PSSWithSHA256PSSWithSHA384PSSWithSHA512Ed25519"
-)
-
-var (
-	_SignatureScheme_index_8 = [...]uint8{0, 13, 26, 39, 46}
-)
-
-func (i SignatureScheme) String() string {
-	switch {
-	case i == 513:
-		return _SignatureScheme_name_0
-	case i == 515:
-		return _SignatureScheme_name_1
-	case i == 1025:
-		return _SignatureScheme_name_2
-	case i == 1027:
-		return _SignatureScheme_name_3
-	case i == 1281:
-		return _SignatureScheme_name_4
-	case i == 1283:
-		return _SignatureScheme_name_5
-	case i == 1537:
-		return _SignatureScheme_name_6
-	case i == 1539:
-		return _SignatureScheme_name_7
-	case 2052 <= i && i <= 2055:
-		i -= 2052
-		return _SignatureScheme_name_8[_SignatureScheme_index_8[i]:_SignatureScheme_index_8[i+1]]
-	default:
-		return "SignatureScheme(" + strconv.FormatInt(int64(i), 10) + ")"
-	}
-}
-func _() {
-	// An "invalid array index" compiler error signifies that the constant values have changed.
-	// Re-run the stringer command to generate them again.
-	var x [1]struct{}
-	_ = x[CurveP256-23]
-	_ = x[CurveP384-24]
-	_ = x[CurveP521-25]
-	_ = x[X25519-29]
-}
-
-const (
-	_CurveID_name_0 = "CurveP256CurveP384CurveP521"
-	_CurveID_name_1 = "X25519"
-)
-
-var (
-	_CurveID_index_0 = [...]uint8{0, 9, 18, 27}
-)
-
-func (i CurveID) String() string {
-	switch {
-	case 23 <= i && i <= 25:
-		i -= 23
-		return _CurveID_name_0[_CurveID_index_0[i]:_CurveID_index_0[i+1]]
-	case i == 29:
-		return _CurveID_name_1
-	default:
-		return "CurveID(" + strconv.FormatInt(int64(i), 10) + ")"
-	}
-}
-func _() {
-	// An "invalid array index" compiler error signifies that the constant values have changed.
-	// Re-run the stringer command to generate them again.
-	var x [1]struct{}
-	_ = x[NoClientCert-0]
-	_ = x[RequestClientCert-1]
-	_ = x[RequireAnyClientCert-2]
-	_ = x[VerifyClientCertIfGiven-3]
-	_ = x[RequireAndVerifyClientCert-4]
-}
-
-const _ClientAuthType_name = "NoClientCertRequestClientCertRequireAnyClientCertVerifyClientCertIfGivenRequireAndVerifyClientCert"
-
-var _ClientAuthType_index = [...]uint8{0, 12, 29, 49, 72, 98}
-
-func (i ClientAuthType) String() string {
-	if i < 0 || i >= ClientAuthType(len(_ClientAuthType_index)-1) {
-		return "ClientAuthType(" + strconv.FormatInt(int64(i), 10) + ")"
-	}
-	return _ClientAuthType_name[_ClientAuthType_index[i]:_ClientAuthType_index[i+1]]
-}

transport/cloudflaretls/delegated_credentials.go

@@ -1,550 +0,0 @@
-// Copyright 2020-2021 Cloudflare, Inc. All rights reserved. Use of this source code
-// is governed by a BSD-style license that can be found in the LICENSE file.
-
-package tls
-
-// Delegated Credentials for TLS
-// (https://tools.ietf.org/html/draft-ietf-tls-subcerts) is an IETF Internet
-// draft and proposed TLS extension. If the client or server supports this
-// extension, then the server or client may use a "delegated credential" as the
-// signing key in the handshake. A delegated credential is a short lived
-// public/secret key pair delegated to the peer by an entity trusted by the
-// corresponding peer. This allows a reverse proxy to terminate a TLS connection
-// on behalf of the entity. Credentials can't be revoked; in order to
-// mitigate risk in case the reverse proxy is compromised, the credential is only
-// valid for a short time (days, hours, or even minutes).
-
-import (
-	"bytes"
-	"crypto"
-	"crypto/ecdsa"
-	"crypto/ed25519"
-	"crypto/elliptic"
-	"crypto/rand"
-	"crypto/rsa"
-	"crypto/x509"
-	"encoding/binary"
-	"errors"
-	"fmt"
-	"io"
-	"time"
-
-	"golang.org/x/crypto/cryptobyte"
-)
-
-const (
-	// In the absence of an application profile standard specifying otherwise,
-	// the maximum validity period is set to 7 days.
-	dcMaxTTLSeconds   = 60 * 60 * 24 * 7
-	dcMaxTTL          = time.Duration(dcMaxTTLSeconds * time.Second)
-	dcMaxPubLen       = (1 << 24) - 1 // Bytes
-	dcMaxSignatureLen = (1 << 16) - 1 // Bytes
-)
-
-const (
-	undefinedSignatureScheme SignatureScheme = 0x0000
-)
-
-var extensionDelegatedCredential = []int{1, 3, 6, 1, 4, 1, 44363, 44}
-
-// isValidForDelegation returns true if a certificate can be used for Delegated
-// Credentials.
-func isValidForDelegation(cert *x509.Certificate) bool {
-	// Check that the digitalSignature key usage is set.
-	// The certificate must contains the digitalSignature KeyUsage.
-	if (cert.KeyUsage & x509.KeyUsageDigitalSignature) == 0 {
-		return false
-	}
-
-	// Check that the certificate has the DelegationUsage extension and that
-	// it's marked as non-critical (See Section 4.2 of RFC5280).
-	for _, extension := range cert.Extensions {
-		if extension.Id.Equal(extensionDelegatedCredential) {
-			if extension.Critical {
-				return false
-			}
-			return true
-		}
-	}
-	return false
-}
-
-// isExpired returns true if the credential has expired. The end of the validity
-// interval is defined as the delegator certificate's notBefore field ('start')
-// plus dc.cred.validTime seconds. This function simply checks that the current time
-// ('now') is before the end of the validity interval.
-func (dc *DelegatedCredential) isExpired(start, now time.Time) bool {
-	end := start.Add(dc.cred.validTime)
-	return !now.Before(end)
-}
-
-// invalidTTL returns true if the credential's validity period is longer than the
-// maximum permitted. This is defined by the certificate's notBefore field
-// ('start') plus the dc.validTime, minus the current time ('now').
-func (dc *DelegatedCredential) invalidTTL(start, now time.Time) bool {
-	return dc.cred.validTime > (now.Sub(start) + dcMaxTTL).Round(time.Second)
-}
-
-// credential stores the public components of a Delegated Credential.
-type credential struct {
-	// The amount of time for which the credential is valid. Specifically, the
-	// the credential expires 'validTime' seconds after the 'notBefore' of the
-	// delegation certificate. The delegator shall not issue Delegated
-	// Credentials that are valid for more than 7 days from the current time.
-	//
-	// When this data structure is serialized, this value is converted to a
-	// uint32 representing the duration in seconds.
-	validTime time.Duration
-	// The signature scheme associated with the credential public key.
-	// This is expected to be the same as the CertificateVerify.algorithm
-	// sent by the client or server.
-	expCertVerfAlgo SignatureScheme
-	// The credential's public key.
-	publicKey crypto.PublicKey
-}
-
-// DelegatedCredential stores a Delegated Credential with the credential and its
-// signature.
-type DelegatedCredential struct {
-	// The serialized form of the Delegated Credential.
-	raw []byte
-
-	// Cred stores the public components of a Delegated Credential.
-	cred *credential
-
-	// The signature scheme used to sign the Delegated Credential.
-	algorithm SignatureScheme
-
-	// The Credential's delegation: a signature that binds the credential to
-	// the end-entity certificate's public key.
-	signature []byte
-}
-
-// marshalPublicKeyInfo returns a DER encoded PublicKeyInfo
-// from a Delegated Credential (as defined in the X.509 standard).
-// The following key types are currently supported: *ecdsa.PublicKey
-// and ed25519.PublicKey. Unsupported key types result in an error.
-// rsa.PublicKey is not supported as defined by the draft.
-func (cred *credential) marshalPublicKeyInfo() ([]byte, error) {
-	switch cred.expCertVerfAlgo {
-	case ECDSAWithP256AndSHA256,
-		ECDSAWithP384AndSHA384,
-		ECDSAWithP521AndSHA512,
-		Ed25519:
-		rawPub, err := x509.MarshalPKIXPublicKey(cred.publicKey)
-		if err != nil {
-			return nil, err
-		}
-
-		return rawPub, nil
-
-	default:
-		return nil, fmt.Errorf("tls: unsupported signature scheme: 0x%04x", cred.expCertVerfAlgo)
-	}
-}
-
-// marshal encodes the credential struct of the Delegated Credential.
-func (cred *credential) marshal() ([]byte, error) {
-	var b cryptobyte.Builder
-
-	b.AddUint32(uint32(cred.validTime / time.Second))
-	b.AddUint16(uint16(cred.expCertVerfAlgo))
-
-	// Encode the public key
-	rawPub, err := cred.marshalPublicKeyInfo()
-	if err != nil {
-		return nil, err
-	}
-	// Assert that the public key encoding is no longer than 2^24-1 bytes.
-	if len(rawPub) > dcMaxPubLen {
-		return nil, errors.New("tls: public key length exceeds 2^24-1 limit")
-	}
-
-	b.AddUint24(uint32(len(rawPub)))
-	b.AddBytes(rawPub)
-
-	raw := b.BytesOrPanic()
-	return raw, nil
-}
-
-// unmarshalCredential decodes serialized bytes and returns a credential, if possible.
-func unmarshalCredential(raw []byte) (*credential, error) {
-	if len(raw) < 10 {
-		return nil, errors.New("tls: Delegated Credential is not valid: invalid length")
-	}
-
-	s := cryptobyte.String(raw)
-	var t uint32
-	if !s.ReadUint32(&t) {
-		return nil, errors.New("tls: Delegated Credential is not valid")
-	}
-	validTime := time.Duration(t) * time.Second
-
-	var pubAlgo uint16
-	if !s.ReadUint16(&pubAlgo) {
-		return nil, errors.New("tls: Delegated Credential is not valid")
-	}
-	algo := SignatureScheme(pubAlgo)
-
-	var pubLen uint32
-	s.ReadUint24(&pubLen)
-
-	pubKey, err := x509.ParsePKIXPublicKey(s)
-	if err != nil {
-		return nil, err
-	}
-
-	return &credential{validTime, algo, pubKey}, nil
-}
-
-// getCredentialLen returns the number of bytes comprising the serialized
-// credential struct inside the Delegated Credential.
-func getCredentialLen(raw []byte) (int, error) {
-	if len(raw) < 10 {
-		return 0, errors.New("tls: Delegated Credential is not valid")
-	}
-
-	var read []byte
-	s := cryptobyte.String(raw)
-	s.ReadBytes(&read, 6)
-
-	var pubLen uint32
-	s.ReadUint24(&pubLen)
-	if !(pubLen > 0) {
-		return 0, errors.New("tls: Delegated Credential is not valid")
-	}
-
-	raw = raw[6:]
-	if len(raw) < int(pubLen) {
-		return 0, errors.New("tls: Delegated Credential is not valid")
-	}
-
-	return 9 + int(pubLen), nil
-}
-
-// getHash maps the SignatureScheme to its corresponding hash function.
-func getHash(scheme SignatureScheme) crypto.Hash {
-	switch scheme {
-	case ECDSAWithP256AndSHA256:
-		return crypto.SHA256
-	case ECDSAWithP384AndSHA384:
-		return crypto.SHA384
-	case ECDSAWithP521AndSHA512:
-		return crypto.SHA512
-	case Ed25519:
-		return directSigning
-	case PKCS1WithSHA256, PSSWithSHA256:
-		return crypto.SHA256
-	case PSSWithSHA384:
-		return crypto.SHA384
-	case PSSWithSHA512:
-		return crypto.SHA512
-	default:
-		return 0 // Unknown hash function
-	}
-}
-
-// getECDSACurve maps the SignatureScheme to its corresponding ecdsa elliptic.Curve.
-func getECDSACurve(scheme SignatureScheme) elliptic.Curve {
-	switch scheme {
-	case ECDSAWithP256AndSHA256:
-		return elliptic.P256()
-	case ECDSAWithP384AndSHA384:
-		return elliptic.P384()
-	case ECDSAWithP521AndSHA512:
-		return elliptic.P521()
-	default:
-		return nil
-	}
-}
-
-// prepareDelegationSignatureInput returns the message that the delegator is going to sign.
-func prepareDelegationSignatureInput(hash crypto.Hash, cred *credential, dCert []byte, algo SignatureScheme, isClient bool) ([]byte, error) {
-	header := make([]byte, 64)
-	for i := range header {
-		header[i] = 0x20
-	}
-
-	var context string
-	if !isClient {
-		context = "TLS, server delegated credentials\x00"
-	} else {
-		context = "TLS, client delegated credentials\x00"
-	}
-
-	rawCred, err := cred.marshal()
-	if err != nil {
-		return nil, err
-	}
-
-	var rawAlgo [2]byte
-	binary.BigEndian.PutUint16(rawAlgo[:], uint16(algo))
-
-	if hash == directSigning {
-		b := &bytes.Buffer{}
-		b.Write(header)
-		io.WriteString(b, context)
-		b.Write(dCert)
-		b.Write(rawCred)
-		b.Write(rawAlgo[:])
-		return b.Bytes(), nil
-	}
-
-	h := hash.New()
-	h.Write(header)
-	io.WriteString(h, context)
-	h.Write(dCert)
-	h.Write(rawCred)
-	h.Write(rawAlgo[:])
-	return h.Sum(nil), nil
-}
-
-// Extract the algorithm used to sign the Delegated Credential from the
-// end-entity (leaf) certificate.
-func getSignatureAlgorithm(cert *Certificate) (SignatureScheme, error) {
-	switch sk := cert.PrivateKey.(type) {
-	case *ecdsa.PrivateKey:
-		pk := sk.Public().(*ecdsa.PublicKey)
-		curveName := pk.Curve.Params().Name
-		certAlg := cert.Leaf.PublicKeyAlgorithm
-		if certAlg == x509.ECDSA && curveName == "P-256" {
-			return ECDSAWithP256AndSHA256, nil
-		} else if certAlg == x509.ECDSA && curveName == "P-384" {
-			return ECDSAWithP384AndSHA384, nil
-		} else if certAlg == x509.ECDSA && curveName == "P-521" {
-			return ECDSAWithP521AndSHA512, nil
-		} else {
-			return undefinedSignatureScheme, fmt.Errorf("using curve %s for %s is not supported", curveName, cert.Leaf.SignatureAlgorithm)
-		}
-	case ed25519.PrivateKey:
-		return Ed25519, nil
-	case *rsa.PrivateKey:
-		// If the certificate has the RSAEncryption OID there are a number of valid signature schemes that may sign the DC.
-		// In the absence of better information, we make a reasonable choice.
-		return PSSWithSHA256, nil
-	default:
-		return undefinedSignatureScheme, fmt.Errorf("tls: unsupported algorithm for signing Delegated Credential")
-	}
-}
-
-// NewDelegatedCredential creates a new Delegated Credential using 'cert' for
-// delegation, depending if the caller is the client or the server (defined by
-// 'isClient'). It generates a public/private key pair for the provided signature
-// algorithm ('pubAlgo') and it defines a validity interval (defined
-// by 'cert.Leaf.notBefore' and 'validTime'). It signs the Delegated Credential
-// using 'cert.PrivateKey'.
-func NewDelegatedCredential(cert *Certificate, pubAlgo SignatureScheme, validTime time.Duration, isClient bool) (*DelegatedCredential, crypto.PrivateKey, error) {
-	// The granularity of DC validity is seconds.
-	validTime = validTime.Round(time.Second)
-
-	// Parse the leaf certificate if needed.
-	var err error
-	if cert.Leaf == nil {
-		if len(cert.Certificate[0]) == 0 {
-			return nil, nil, errors.New("tls: missing leaf certificate for Delegated Credential")
-		}
-		cert.Leaf, err = x509.ParseCertificate(cert.Certificate[0])
-		if err != nil {
-			return nil, nil, err
-		}
-	}
-
-	// Check that the leaf certificate can be used for delegation.
-	if !isValidForDelegation(cert.Leaf) {
-		return nil, nil, errors.New("tls: certificate not authorized for delegation")
-	}
-
-	sigAlgo, err := getSignatureAlgorithm(cert)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	// Generate the Delegated Credential key pair based on the provided scheme
-	var privK crypto.PrivateKey
-	var pubK crypto.PublicKey
-	switch pubAlgo {
-	case ECDSAWithP256AndSHA256,
-		ECDSAWithP384AndSHA384,
-		ECDSAWithP521AndSHA512:
-		privK, err = ecdsa.GenerateKey(getECDSACurve(pubAlgo), rand.Reader)
-		if err != nil {
-			return nil, nil, err
-		}
-		pubK = privK.(*ecdsa.PrivateKey).Public()
-	case Ed25519:
-		pubK, privK, err = ed25519.GenerateKey(rand.Reader)
-		if err != nil {
-			return nil, nil, err
-		}
-	default:
-		return nil, nil, fmt.Errorf("tls: unsupported algorithm for Delegated Credential: %s", pubAlgo)
-	}
-
-	// Prepare the credential for signing
-	hash := getHash(sigAlgo)
-	credential := &credential{validTime, pubAlgo, pubK}
-	values, err := prepareDelegationSignatureInput(hash, credential, cert.Leaf.Raw, sigAlgo, isClient)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	var sig []byte
-	switch sk := cert.PrivateKey.(type) {
-	case *ecdsa.PrivateKey:
-		opts := crypto.SignerOpts(hash)
-		sig, err = sk.Sign(rand.Reader, values, opts)
-		if err != nil {
-			return nil, nil, err
-		}
-	case ed25519.PrivateKey:
-		opts := crypto.SignerOpts(hash)
-		sig, err = sk.Sign(rand.Reader, values, opts)
-		if err != nil {
-			return nil, nil, err
-		}
-	case *rsa.PrivateKey:
-		opts := &rsa.PSSOptions{
-			SaltLength: rsa.PSSSaltLengthEqualsHash,
-			Hash:       hash,
-		}
-		sig, err = rsa.SignPSS(rand.Reader, sk, hash, values, opts)
-		if err != nil {
-			return nil, nil, err
-		}
-	default:
-		return nil, nil, fmt.Errorf("tls: unsupported key type for Delegated Credential")
-	}
-
-	if len(sig) > dcMaxSignatureLen {
-		return nil, nil, errors.New("tls: unable to create a Delegated Credential")
-	}
-
-	return &DelegatedCredential{
-		cred:      credential,
-		algorithm: sigAlgo,
-		signature: sig,
-	}, privK, nil
-}
-
-// Validate validates the Delegated Credential by checking that the signature is
-// valid, that it hasn't expired, and that the TTL is valid. It also checks that
-// certificate can be used for delegation.
-func (dc *DelegatedCredential) Validate(cert *x509.Certificate, isClient bool, now time.Time, certVerifyMsg *certificateVerifyMsg) bool {
-	if dc.isExpired(cert.NotBefore, now) {
-		return false
-	}
-
-	if dc.invalidTTL(cert.NotBefore, now) {
-		return false
-	}
-
-	if dc.cred.expCertVerfAlgo != certVerifyMsg.signatureAlgorithm {
-		return false
-	}
-
-	if !isValidForDelegation(cert) {
-		return false
-	}
-
-	hash := getHash(dc.algorithm)
-	in, err := prepareDelegationSignatureInput(hash, dc.cred, cert.Raw, dc.algorithm, isClient)
-	if err != nil {
-		return false
-	}
-
-	switch dc.algorithm {
-	case ECDSAWithP256AndSHA256,
-		ECDSAWithP384AndSHA384,
-		ECDSAWithP521AndSHA512:
-		pk, ok := cert.PublicKey.(*ecdsa.PublicKey)
-		if !ok {
-			return false
-		}
-
-		return ecdsa.VerifyASN1(pk, in, dc.signature)
-	case Ed25519:
-		pk, ok := cert.PublicKey.(ed25519.PublicKey)
-		if !ok {
-			return false
-		}
-
-		return ed25519.Verify(pk, in, dc.signature)
-	case PSSWithSHA256,
-		PSSWithSHA384,
-		PSSWithSHA512:
-		pk, ok := cert.PublicKey.(*rsa.PublicKey)
-		if !ok {
-			return false
-		}
-		hash := getHash(dc.algorithm)
-		return rsa.VerifyPSS(pk, hash, in, dc.signature, nil) == nil
-	default:
-		return false
-	}
-}
-
-// Marshal encodes a DelegatedCredential structure. It also sets dc.Raw to that
-// encoding.
-func (dc *DelegatedCredential) Marshal() ([]byte, error) {
-	if len(dc.signature) > dcMaxSignatureLen {
-		return nil, errors.New("tls: delegated credential is not valid")
-	}
-	if len(dc.signature) == 0 {
-		return nil, errors.New("tls: delegated credential has no signature")
-	}
-
-	raw, err := dc.cred.marshal()
-	if err != nil {
-		return nil, err
-	}
-
-	var b cryptobyte.Builder
-	b.AddBytes(raw)
-	b.AddUint16(uint16(dc.algorithm))
-	b.AddUint16(uint16(len(dc.signature)))
-	b.AddBytes(dc.signature)
-
-	dc.raw = b.BytesOrPanic()
-	return dc.raw, nil
-}
-
-// UnmarshalDelegatedCredential decodes a DelegatedCredential structure.
-func UnmarshalDelegatedCredential(raw []byte) (*DelegatedCredential, error) {
-	rawCredentialLen, err := getCredentialLen(raw)
-	if err != nil {
-		return nil, err
-	}
-
-	credential, err := unmarshalCredential(raw[:rawCredentialLen])
-	if err != nil {
-		return nil, err
-	}
-
-	raw = raw[rawCredentialLen:]
-	if len(raw) < 4 {
-		return nil, errors.New("tls: Delegated Credential is not valid")
-	}
-
-	s := cryptobyte.String(raw)
-
-	var algo uint16
-	if !s.ReadUint16(&algo) {
-		return nil, errors.New("tls: Delegated Credential is not valid")
-	}
-
-	var rawSignatureLen uint16
-	if !s.ReadUint16(&rawSignatureLen) {
-		return nil, errors.New("tls: Delegated Credential is not valid")
-	}
-
-	var sig []byte
-	if !s.ReadBytes(&sig, int(rawSignatureLen)) {
-		return nil, errors.New("tls: Delegated Credential is not valid")
-	}
-
-	return &DelegatedCredential{
-		cred:      credential,
-		algorithm: SignatureScheme(algo),
-		signature: sig,
-	}, nil
-}

transport/cloudflaretls/ech_config.go

@@ -1,164 +0,0 @@
-// Copyright 2020 Cloudflare, Inc. All rights reserved. Use of this source code
-// is governed by a BSD-style license that can be found in the LICENSE file.
-
-package tls
-
-import (
-	"errors"
-	"fmt"
-	"io"
-
-	"github.com/cloudflare/circl/hpke"
-	"github.com/cloudflare/circl/kem"
-	"golang.org/x/crypto/cryptobyte"
-)
-
-// ECHConfig represents an ECH configuration.
-type ECHConfig struct {
-	pk  kem.PublicKey
-	raw []byte
-
-	// Parsed from raw
-	version           uint16
-	configId          uint8
-	rawPublicName     []byte
-	rawPublicKey      []byte
-	kemId             uint16
-	suites            []hpkeSymmetricCipherSuite
-	maxNameLen        uint8
-	ignoredExtensions []byte
-}
-
-// UnmarshalECHConfigs parses a sequence of ECH configurations.
-func UnmarshalECHConfigs(raw []byte) ([]ECHConfig, error) {
-	var (
-		err         error
-		config      ECHConfig
-		t, contents cryptobyte.String
-	)
-	configs := make([]ECHConfig, 0)
-	s := cryptobyte.String(raw)
-	if !s.ReadUint16LengthPrefixed(&t) || !s.Empty() {
-		return configs, errors.New("error parsing configs")
-	}
-	raw = raw[2:]
-ConfigsLoop:
-	for !t.Empty() {
-		l := len(t)
-		if !t.ReadUint16(&config.version) ||
-			!t.ReadUint16LengthPrefixed(&contents) {
-			return nil, errors.New("error parsing config")
-		}
-		n := l - len(t)
-		config.raw = raw[:n]
-		raw = raw[n:]
-
-		if config.version != extensionECH {
-			continue ConfigsLoop
-		}
-		if !readConfigContents(&contents, &config) {
-			return nil, errors.New("error parsing config contents")
-		}
-
-		kem := hpke.KEM(config.kemId)
-		if !kem.IsValid() {
-			continue ConfigsLoop
-		}
-		config.pk, err = kem.Scheme().UnmarshalBinaryPublicKey(config.rawPublicKey)
-		if err != nil {
-			return nil, fmt.Errorf("error parsing public key: %s", err)
-		}
-		configs = append(configs, config)
-	}
-	return configs, nil
-}
-
-func echMarshalConfigs(configs []ECHConfig) ([]byte, error) {
-	var b cryptobyte.Builder
-	b.AddUint16LengthPrefixed(func(b *cryptobyte.Builder) {
-		for _, config := range configs {
-			if config.raw == nil {
-				panic("config.raw not set")
-			}
-			b.AddBytes(config.raw)
-		}
-	})
-	return b.Bytes()
-}
-
-func readConfigContents(contents *cryptobyte.String, config *ECHConfig) bool {
-	var t cryptobyte.String
-	if !contents.ReadUint8(&config.configId) ||
-		!contents.ReadUint16(&config.kemId) ||
-		!contents.ReadUint16LengthPrefixed(&t) ||
-		!t.ReadBytes(&config.rawPublicKey, len(t)) ||
-		!contents.ReadUint16LengthPrefixed(&t) ||
-		len(t)%4 != 0 {
-		return false
-	}
-
-	config.suites = nil
-	for !t.Empty() {
-		var kdfId, aeadId uint16
-		if !t.ReadUint16(&kdfId) || !t.ReadUint16(&aeadId) {
-			// This indicates an internal bug.
-			panic("internal error while parsing contents.cipher_suites")
-		}
-		config.suites = append(config.suites, hpkeSymmetricCipherSuite{kdfId, aeadId})
-	}
-
-	if !contents.ReadUint8(&config.maxNameLen) ||
-		!contents.ReadUint8LengthPrefixed(&t) ||
-		!t.ReadBytes(&config.rawPublicName, len(t)) ||
-		!contents.ReadUint16LengthPrefixed(&t) ||
-		!t.ReadBytes(&config.ignoredExtensions, len(t)) ||
-		!contents.Empty() {
-		return false
-	}
-	return true
-}
-
-// setupSealer generates the client's HPKE context for use with the ECH
-// extension. It returns the context and corresponding encapsulated key.
-func (config *ECHConfig) setupSealer(rand io.Reader) (enc []byte, sealer hpke.Sealer, err error) {
-	if config.raw == nil {
-		panic("config.raw not set")
-	}
-	hpkeSuite, err := config.selectSuite()
-	if err != nil {
-		return nil, nil, err
-	}
-	info := append(append([]byte(echHpkeInfoSetup), 0), config.raw...)
-	sender, err := hpkeSuite.NewSender(config.pk, info)
-	if err != nil {
-		return nil, nil, err
-	}
-	return sender.Setup(rand)
-}
-
-// isPeerCipherSuiteSupported returns true if this configuration indicates
-// support for the given ciphersuite.
-func (config *ECHConfig) isPeerCipherSuiteSupported(suite hpkeSymmetricCipherSuite) bool {
-	for _, configSuite := range config.suites {
-		if suite == configSuite {
-			return true
-		}
-	}
-	return false
-}
-
-// selectSuite returns the first ciphersuite indicated by this
-// configuration that is supported by the caller.
-func (config *ECHConfig) selectSuite() (hpke.Suite, error) {
-	for _, suite := range config.suites {
-		hpkeSuite, err := hpkeAssembleSuite(
-			config.kemId,
-			suite.kdfId,
-			suite.aeadId,
-		)
-		if err == nil {
-			return hpkeSuite, nil
-		}
-	}
-	return hpke.Suite{}, errors.New("could not negotiate a ciphersuite")
-}

transport/cloudflaretls/ech_provider.go

@@ -1,302 +0,0 @@
-// Copyright 2020 Cloudflare, Inc. All rights reserved. Use of this source code
-// is governed by a BSD-style license that can be found in the LICENSE file.
-
-package tls
-
-import (
-	"errors"
-	"fmt"
-
-	"github.com/cloudflare/circl/hpke"
-	"github.com/cloudflare/circl/kem"
-	"golang.org/x/crypto/cryptobyte"
-)
-
-// ECHProvider specifies the interface of an ECH service provider that decrypts
-// the ECH payload on behalf of the client-facing server. It also defines the
-// set of acceptable ECH configurations.
-type ECHProvider interface {
-	// GetDecryptionContext attempts to construct the HPKE context used by the
-	// client-facing server for decryption. (See draft-irtf-cfrg-hpke-07,
-	// Section 5.2.)
-	//
-	// handle encodes the parameters of the client's "encrypted_client_hello"
-	// extension that are needed to construct the context. Since
-	// draft-ietf-tls-esni-10 these are the ECH cipher suite, the identity of
-	// the ECH configuration, and the encapsulated key.
-	//
-	// version is the version of ECH indicated by the client.
-	//
-	// res.Status == ECHProviderStatusSuccess indicates the call was successful
-	// and the caller may proceed. res.Context is set.
-	//
-	// res.Status == ECHProviderStatusReject indicates the caller must reject
-	// ECH. res.RetryConfigs may be set.
-	//
-	// res.Status == ECHProviderStatusAbort indicates the caller should abort
-	// the handshake.  Note that, in some cases, it's appropriate to reject
-	// rather than abort. In particular, aborting with "illegal_parameter" might
-	// "stick out". res.Alert and res.Error are set.
-	GetDecryptionContext(handle []byte, version uint16) (res ECHProviderResult)
-}
-
-// ECHProviderStatus is the status of the ECH provider's response.
-type ECHProviderStatus uint
-
-const (
-	ECHProviderSuccess ECHProviderStatus = 0
-	ECHProviderReject                    = 1
-	ECHProviderAbort                     = 2
-
-	errHPKEInvalidPublicKey = "hpke: invalid KEM public key"
-)
-
-// ECHProviderResult represents the result of invoking the ECH provider.
-type ECHProviderResult struct {
-	Status ECHProviderStatus
-
-	// Alert is the TLS alert sent by the caller when aborting the handshake.
-	Alert uint8
-
-	// Error is the error propagated by the caller when aborting the handshake.
-	Error error
-
-	// RetryConfigs is the sequence of ECH configs to offer to the client for
-	// retrying the handshake. This may be set in case of success or rejection.
-	RetryConfigs []byte
-
-	// Context is the server's HPKE context. This is set if ECH is not rejected
-	// by the provider and no error was reported. The data has the following
-	// format (in TLS syntax):
-	//
-	// enum { sealer(0), opener(1) } HpkeRole;
-	//
-	// struct {
-	//     HpkeRole role;
-	//     HpkeKemId kem_id;   // as defined in draft-irtf-cfrg-hpke-07
-	//     HpkeKdfId kdf_id;   // as defined in draft-irtf-cfrg-hpke-07
-	//     HpkeAeadId aead_id; // as defined in draft-irtf-cfrg-hpke-07
-	//     opaque exporter_secret<0..255>;
-	//     opaque key<0..255>;
-	//     opaque base_nonce<0..255>;
-	//     opaque seq<0..255>;
-	// } HpkeContext;
-	Context []byte
-}
-
-// EXP_ECHKeySet implements the ECHProvider interface for a sequence of ECH keys.
-//
-// NOTE: This API is EXPERIMENTAL and subject to change.
-type EXP_ECHKeySet struct {
-	// The serialized ECHConfigs, in order of the server's preference.
-	configs []byte
-
-	// Maps a configuration identifier to its secret key.
-	sk map[uint8]EXP_ECHKey
-}
-
-// EXP_NewECHKeySet constructs an EXP_ECHKeySet.
-func EXP_NewECHKeySet(keys []EXP_ECHKey) (*EXP_ECHKeySet, error) {
-	if len(keys) > 255 {
-		return nil, fmt.Errorf("tls: ech provider: unable to support more than 255 ECH configurations at once")
-	}
-
-	keySet := new(EXP_ECHKeySet)
-	keySet.sk = make(map[uint8]EXP_ECHKey)
-	configs := make([]byte, 0)
-	for _, key := range keys {
-		if _, ok := keySet.sk[key.config.configId]; ok {
-			return nil, fmt.Errorf("tls: ech provider: ECH config conflict for configId %d", key.config.configId)
-		}
-
-		keySet.sk[key.config.configId] = key
-		configs = append(configs, key.config.raw...)
-	}
-
-	var b cryptobyte.Builder
-	b.AddUint16LengthPrefixed(func(b *cryptobyte.Builder) {
-		b.AddBytes(configs)
-	})
-	keySet.configs = b.BytesOrPanic()
-
-	return keySet, nil
-}
-
-// GetDecryptionContext is required by the ECHProvider interface.
-func (keySet *EXP_ECHKeySet) GetDecryptionContext(rawHandle []byte, version uint16) (res ECHProviderResult) {
-	// Propagate retry configurations regardless of the result. The caller sends
-	// these to the clients only if it rejects.
-	res.RetryConfigs = keySet.configs
-
-	// Ensure we know how to proceed, i.e., the caller has indicated a supported
-	// version of ECH. Currently only draft-ietf-tls-esni-13 is supported.
-	if version != extensionECH {
-		res.Status = ECHProviderAbort
-		res.Alert = uint8(alertInternalError)
-		res.Error = errors.New("version not supported")
-		return // Abort
-	}
-
-	// Parse the handle.
-	s := cryptobyte.String(rawHandle)
-	handle := new(echContextHandle)
-	if !echReadContextHandle(&s, handle) || !s.Empty() {
-		// This is the result of a client-side error. However, aborting with
-		// "illegal_parameter" would stick out, so we reject instead.
-		res.Status = ECHProviderReject
-		res.RetryConfigs = keySet.configs
-		return // Reject
-	}
-	handle.raw = rawHandle
-
-	// Look up the secret key for the configuration indicated by the client.
-	key, ok := keySet.sk[handle.configId]
-	if !ok {
-		res.Status = ECHProviderReject
-		res.RetryConfigs = keySet.configs
-		return // Reject
-	}
-
-	// Ensure that support for the selected ciphersuite is indicated by the
-	// configuration.
-	suite := handle.suite
-	if !key.config.isPeerCipherSuiteSupported(suite) {
-		// This is the result of a client-side error. However, aborting with
-		// "illegal_parameter" would stick out, so we reject instead.
-		res.Status = ECHProviderReject
-		res.RetryConfigs = keySet.configs
-		return // Reject
-	}
-
-	// Ensure the version indicated by the client matches the version supported
-	// by the configuration.
-	if version != key.config.version {
-		// This is the result of a client-side error. However, aborting with
-		// "illegal_parameter" would stick out, so we reject instead.
-		res.Status = ECHProviderReject
-		res.RetryConfigs = keySet.configs
-		return // Reject
-	}
-
-	// Compute the decryption context.
-	opener, err := key.setupOpener(handle.enc, suite)
-	if err != nil {
-		if err.Error() == errHPKEInvalidPublicKey {
-			// This occurs if the KEM algorithm used to generate handle.enc is
-			// not the same as the KEM algorithm of the key. One way this can
-			// happen is if the client sent a GREASE ECH extension with a
-			// config_id that happens to match a known config, but which uses a
-			// different KEM algorithm.
-			res.Status = ECHProviderReject
-			res.RetryConfigs = keySet.configs
-			return // Reject
-		}
-
-		res.Status = ECHProviderAbort
-		res.Alert = uint8(alertInternalError)
-		res.Error = err
-		return // Abort
-	}
-
-	// Serialize the decryption context.
-	res.Context, err = opener.MarshalBinary()
-	if err != nil {
-		res.Status = ECHProviderAbort
-		res.Alert = uint8(alertInternalError)
-		res.Error = err
-		return // Abort
-	}
-
-	res.Status = ECHProviderSuccess
-	return // Success
-}
-
-// EXP_ECHKey represents an ECH key and its corresponding configuration. The
-// encoding of an ECH Key has the format defined below (in TLS syntax). Note
-// that the ECH standard does not specify this format.
-//
-//	struct {
-//	    opaque sk<0..2^16-1>;
-//	    ECHConfig config<0..2^16>; // draft-ietf-tls-esni-13
-//	} ECHKey;
-type EXP_ECHKey struct {
-	sk     kem.PrivateKey
-	config ECHConfig
-}
-
-// EXP_UnmarshalECHKeys parses a sequence of ECH keys.
-func EXP_UnmarshalECHKeys(raw []byte) ([]EXP_ECHKey, error) {
-	var (
-		err                  error
-		key                  EXP_ECHKey
-		sk, config, contents cryptobyte.String
-	)
-	s := cryptobyte.String(raw)
-	keys := make([]EXP_ECHKey, 0)
-KeysLoop:
-	for !s.Empty() {
-		if !s.ReadUint16LengthPrefixed(&sk) ||
-			!s.ReadUint16LengthPrefixed(&config) {
-			return nil, errors.New("error parsing key")
-		}
-
-		key.config.raw = config
-		if !config.ReadUint16(&key.config.version) ||
-			!config.ReadUint16LengthPrefixed(&contents) ||
-			!config.Empty() {
-			return nil, errors.New("error parsing config")
-		}
-
-		if key.config.version != extensionECH {
-			continue KeysLoop
-		}
-		if !readConfigContents(&contents, &key.config) {
-			return nil, errors.New("error parsing config contents")
-		}
-
-		for _, suite := range key.config.suites {
-			if !hpke.KDF(suite.kdfId).IsValid() ||
-				!hpke.AEAD(suite.aeadId).IsValid() {
-				continue KeysLoop
-			}
-		}
-
-		kem := hpke.KEM(key.config.kemId)
-		if !kem.IsValid() {
-			continue KeysLoop
-		}
-		key.config.pk, err = kem.Scheme().UnmarshalBinaryPublicKey(key.config.rawPublicKey)
-		if err != nil {
-			return nil, fmt.Errorf("error parsing public key: %s", err)
-		}
-		key.sk, err = kem.Scheme().UnmarshalBinaryPrivateKey(sk)
-		if err != nil {
-			return nil, fmt.Errorf("error parsing secret key: %s", err)
-		}
-
-		keys = append(keys, key)
-	}
-	return keys, nil
-}
-
-// setupOpener computes the HPKE context used by the server in the ECH
-// extension.i
-func (key *EXP_ECHKey) setupOpener(enc []byte, suite hpkeSymmetricCipherSuite) (hpke.Opener, error) {
-	if key.config.raw == nil {
-		panic("raw config not set")
-	}
-	hpkeSuite, err := hpkeAssembleSuite(
-		key.config.kemId,
-		suite.kdfId,
-		suite.aeadId,
-	)
-	if err != nil {
-		return nil, err
-	}
-	info := append(append([]byte(echHpkeInfoSetup), 0), key.config.raw...)
-	receiver, err := hpkeSuite.NewReceiver(key.sk, info)
-	if err != nil {
-		return nil, err
-	}
-	return receiver.Setup(enc)
-}

transport/cloudflaretls/generate_cert.go

@@ -1,194 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//go:build ignore
-
-// Generate a self-signed X.509 certificate for a TLS server. Outputs to
-// 'cert.pem' and 'key.pem' and will overwrite existing files.
-
-package main
-
-import (
-	"crypto/ecdsa"
-	"crypto/ed25519"
-	"crypto/elliptic"
-	"crypto/rand"
-	"crypto/rsa"
-	"crypto/x509"
-	"crypto/x509/pkix"
-	"encoding/pem"
-	"flag"
-	"log"
-	"math/big"
-	"net"
-	"os"
-	"strings"
-	"time"
-
-	circlSign "github.com/cloudflare/circl/sign"
-	circlSchemes "github.com/cloudflare/circl/sign/schemes"
-)
-
-var (
-	host       = flag.String("host", "", "Comma-separated hostnames and IPs to generate a certificate for")
-	validFrom  = flag.String("start-date", "", "Creation date formatted as Jan 1 15:04:05 2011")
-	validFor   = flag.Duration("duration", 365*24*time.Hour, "Duration that certificate is valid for")
-	isCA       = flag.Bool("ca", false, "whether this cert should be its own Certificate Authority")
-	allowDC    = flag.Bool("allowDC", false, "whether this cert can be used with Delegated Credentials")
-	rsaBits    = flag.Int("rsa-bits", 2048, "Size of RSA key to generate. Ignored if --ecdsa-curve is set")
-	ecdsaCurve = flag.String("ecdsa-curve", "", "ECDSA curve to use to generate a key. Valid values are P224, P256 (recommended), P384, P521")
-	ed25519Key = flag.Bool("ed25519", false, "Generate an Ed25519 key")
-	circlKey   = flag.String("github.com/cloudflare/circl", "", "Generate a key supported by Circl")
-)
-
-func publicKey(priv any) any {
-	switch k := priv.(type) {
-	case *rsa.PrivateKey:
-		return &k.PublicKey
-	case *ecdsa.PrivateKey:
-		return &k.PublicKey
-	case ed25519.PrivateKey:
-		return k.Public().(ed25519.PublicKey)
-	case circlSign.PrivateKey:
-		return k.Public()
-	default:
-		return nil
-	}
-}
-
-func main() {
-	flag.Parse()
-
-	if len(*host) == 0 {
-		log.Fatalf("Missing required --host parameter")
-	}
-
-	var priv any
-	var err error
-	switch *ecdsaCurve {
-	case "":
-		if *ed25519Key {
-			_, priv, err = ed25519.GenerateKey(rand.Reader)
-		} else if *circlKey != "" {
-			scheme := circlSchemes.ByName(*circlKey)
-			if scheme == nil {
-				log.Fatalf("No such Circl scheme: %s", *circlKey)
-			}
-			_, priv, err = scheme.GenerateKey()
-		} else {
-			priv, err = rsa.GenerateKey(rand.Reader, *rsaBits)
-		}
-	case "P224":
-		priv, err = ecdsa.GenerateKey(elliptic.P224(), rand.Reader)
-	case "P256":
-		priv, err = ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
-	case "P384":
-		priv, err = ecdsa.GenerateKey(elliptic.P384(), rand.Reader)
-	case "P521":
-		priv, err = ecdsa.GenerateKey(elliptic.P521(), rand.Reader)
-	default:
-		log.Fatalf("Unrecognized elliptic curve: %q", *ecdsaCurve)
-	}
-	if err != nil {
-		log.Fatalf("Failed to generate private key: %v", err)
-	}
-
-	// ECDSA, ED25519 and RSA subject keys should have the DigitalSignature
-	// KeyUsage bits set in the x509.Certificate template
-	keyUsage := x509.KeyUsageDigitalSignature
-	// Only RSA subject keys should have the KeyEncipherment KeyUsage bits set. In
-	// the context of TLS this KeyUsage is particular to RSA key exchange and
-	// authentication.
-	if _, isRSA := priv.(*rsa.PrivateKey); isRSA {
-		keyUsage |= x509.KeyUsageKeyEncipherment
-	}
-
-	var notBefore time.Time
-	if len(*validFrom) == 0 {
-		notBefore = time.Now()
-	} else {
-		notBefore, err = time.Parse("Jan 2 15:04:05 2006", *validFrom)
-		if err != nil {
-			log.Fatalf("Failed to parse creation date: %v", err)
-		}
-	}
-
-	notAfter := notBefore.Add(*validFor)
-
-	serialNumberLimit := new(big.Int).Lsh(big.NewInt(1), 128)
-	serialNumber, err := rand.Int(rand.Reader, serialNumberLimit)
-	if err != nil {
-		log.Fatalf("Failed to generate serial number: %v", err)
-	}
-
-	template := x509.Certificate{
-		SerialNumber: serialNumber,
-		Subject: pkix.Name{
-			Organization: []string{"Acme Co"},
-		},
-		NotBefore: notBefore,
-		NotAfter:  notAfter,
-
-		KeyUsage:              keyUsage,
-		ExtKeyUsage:           []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
-		BasicConstraintsValid: true,
-	}
-
-	hosts := strings.Split(*host, ",")
-	for _, h := range hosts {
-		if ip := net.ParseIP(h); ip != nil {
-			template.IPAddresses = append(template.IPAddresses, ip)
-		} else {
-			template.DNSNames = append(template.DNSNames, h)
-		}
-	}
-
-	if *isCA {
-		if *allowDC {
-			log.Fatal("Failed to create certificate: ca is not allowed with the dc flag")
-		}
-
-		template.IsCA = true
-		template.KeyUsage |= x509.KeyUsageCertSign
-	}
-
-	if *allowDC {
-		template.AllowDC = true
-		template.KeyUsage |= x509.KeyUsageDigitalSignature
-	}
-
-	derBytes, err := x509.CreateCertificate(rand.Reader, &template, &template, publicKey(priv), priv)
-	if err != nil {
-		log.Fatalf("Failed to create certificate: %v", err)
-	}
-
-	certOut, err := os.Create("cert.pem")
-	if err != nil {
-		log.Fatalf("Failed to open cert.pem for writing: %v", err)
-	}
-	if err := pem.Encode(certOut, &pem.Block{Type: "CERTIFICATE", Bytes: derBytes}); err != nil {
-		log.Fatalf("Failed to write data to cert.pem: %v", err)
-	}
-	if err := certOut.Close(); err != nil {
-		log.Fatalf("Error closing cert.pem: %v", err)
-	}
-	log.Print("wrote cert.pem\n")
-
-	keyOut, err := os.OpenFile("key.pem", os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0o600)
-	if err != nil {
-		log.Fatalf("Failed to open key.pem for writing: %v", err)
-		return
-	}
-	privBytes, err := x509.MarshalPKCS8PrivateKey(priv)
-	if err != nil {
-		log.Fatalf("Unable to marshal private key: %v", err)
-	}
-	if err := pem.Encode(keyOut, &pem.Block{Type: "PRIVATE KEY", Bytes: privBytes}); err != nil {
-		log.Fatalf("Failed to write data to key.pem: %v", err)
-	}
-	if err := keyOut.Close(); err != nil {
-		log.Fatalf("Error closing key.pem: %v", err)
-	}
-	log.Print("wrote key.pem\n")
-}

transport/cloudflaretls/generate_delegated_credential.go

@@ -1,126 +0,0 @@
-// Copyright 2022 Cloudflare, Inc. All rights reserved. Use of this source code
-// is governed by a BSD-style license that can be found in the LICENSE file.
-
-//go:build ignore
-
-// Generate a delegated credential with the given signature scheme, signed with
-// the given x.509 key pair. Outputs to 'dc.cred' and 'dckey.pem' and will
-// overwrite existing files.
-
-// Example usage:
-// generate_delegated_credential -cert-path cert.pem -key-path key.pem -signature-scheme Ed25519 -duration 24h
-
-package main
-
-import (
-	"crypto"
-	"crypto/ecdsa"
-	"crypto/ed25519"
-	"crypto/rsa"
-	"crypto/tls"
-	"crypto/x509"
-	"encoding/pem"
-	"errors"
-	"flag"
-	"fmt"
-	"log"
-	"os"
-	"path/filepath"
-	"time"
-
-	circlSign "github.com/cloudflare/circl/sign"
-)
-
-var (
-	validFor        = flag.Duration("duration", 5*24*time.Hour, "Duration that credential is valid for")
-	signatureScheme = flag.String("signature-scheme", "", "The signature scheme used by the DC")
-	certPath        = flag.String("cert-path", "./cert.pem", "Path to signing cert")
-	keyPath         = flag.String("key-path", "./key.pem", "Path to signing key")
-	isClient        = flag.Bool("client-dc", false, "Create a client Delegated Credential")
-	outPath         = flag.String("out-path", "./", "Path to output directory")
-)
-
-var SigStringMap = map[string]tls.SignatureScheme{
-	// ECDSA algorithms. Only constrained to a specific curve in TLS 1.3.
-	"ECDSAWithP256AndSHA256": tls.ECDSAWithP256AndSHA256,
-	"ECDSAWithP384AndSHA384": tls.ECDSAWithP384AndSHA384,
-	"ECDSAWithP521AndSHA512": tls.ECDSAWithP521AndSHA512,
-
-	// EdDSA algorithms.
-	"Ed25519": tls.Ed25519,
-}
-
-func main() {
-	flag.Parse()
-	sa := SigStringMap[*signatureScheme]
-
-	cert, err := tls.LoadX509KeyPair(*certPath, *keyPath)
-	if err != nil {
-		log.Fatalf("Failed to load certificate and key: %v", err)
-	}
-	cert.Leaf, err = x509.ParseCertificate(cert.Certificate[0])
-	if err != nil {
-		log.Fatalf("Failed to parse leaf certificate: %v", err)
-	}
-
-	validTime := time.Since(cert.Leaf.NotBefore) + *validFor
-	dc, priv, err := tls.NewDelegatedCredential(&cert, sa, validTime, *isClient)
-	if err != nil {
-		log.Fatalf("Failed to create a DC: %v\n", err)
-	}
-	dcBytes, err := dc.Marshal()
-	if err != nil {
-		log.Fatalf("Failed to marshal DC: %v\n", err)
-	}
-
-	DCOut, err := os.Create(filepath.Join(*outPath, "dc.cred"))
-	if err != nil {
-		log.Fatalf("Failed to open dc.cred for writing: %v", err)
-	}
-
-	DCOut.Write(dcBytes)
-	if err := DCOut.Close(); err != nil {
-		log.Fatalf("Error closing dc.cred: %v", err)
-	}
-	log.Print("wrote dc.cred\n")
-
-	derBytes, err := x509.MarshalPKCS8PrivateKey(priv)
-	if err != nil {
-		log.Fatalf("Failed to marshal DC private key: %v\n", err)
-	}
-
-	DCKeyOut, err := os.Create(filepath.Join(*outPath, "dckey.pem"))
-	if err != nil {
-		log.Fatalf("Failed to open dckey.pem for writing: %v", err)
-	}
-
-	if err := pem.Encode(DCKeyOut, &pem.Block{Type: "PRIVATE KEY", Bytes: derBytes}); err != nil {
-		log.Fatalf("Failed to write data to dckey.pem: %v\n", err)
-	}
-	if err := DCKeyOut.Close(); err != nil {
-		log.Fatalf("Error closing dckey.pem: %v\n", err)
-	}
-	log.Print("wrote dckey.pem\n")
-
-	fmt.Println("Success")
-}
-
-// Copied from tls.go, because it's private.
-func parsePrivateKey(der []byte) (crypto.PrivateKey, error) {
-	if key, err := x509.ParsePKCS1PrivateKey(der); err == nil {
-		return key, nil
-	}
-	if key, err := x509.ParsePKCS8PrivateKey(der); err == nil {
-		switch key := key.(type) {
-		case *rsa.PrivateKey, *ecdsa.PrivateKey, ed25519.PrivateKey, circlSign.PrivateKey:
-			return key, nil
-		default:
-			return nil, errors.New("tls: found unknown private key type in PKCS#8 wrapping")
-		}
-	}
-	if key, err := x509.ParseECPrivateKey(der); err == nil {
-		return key, nil
-	}
-
-	return nil, errors.New("tls: failed to parse private key")
-}

transport/cloudflaretls/handshake_server.go

@@ -1,893 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package tls
-
-import (
-	"context"
-	"crypto"
-	"crypto/ecdsa"
-	"crypto/ed25519"
-	"crypto/rsa"
-	"crypto/subtle"
-	"crypto/x509"
-	"errors"
-	"fmt"
-	"hash"
-	"io"
-	"sync/atomic"
-	"time"
-
-	circlSign "github.com/cloudflare/circl/sign"
-)
-
-// serverHandshakeState contains details of a server handshake in progress.
-// It's discarded once the handshake has completed.
-type serverHandshakeState struct {
-	c            *Conn
-	ctx          context.Context
-	clientHello  *clientHelloMsg
-	hello        *serverHelloMsg
-	suite        *cipherSuite
-	ecdheOk      bool
-	ecSignOk     bool
-	rsaDecryptOk bool
-	rsaSignOk    bool
-	sessionState *sessionState
-	finishedHash finishedHash
-	masterSecret []byte
-	cert         *Certificate
-}
-
-// serverHandshake performs a TLS handshake as a server.
-func (c *Conn) serverHandshake(ctx context.Context) error {
-	clientHello, err := c.readClientHello(ctx)
-	if err != nil {
-		return err
-	}
-
-	if c.vers == VersionTLS13 {
-		hs := serverHandshakeStateTLS13{
-			c:           c,
-			ctx:         ctx,
-			clientHello: clientHello,
-			hsTimings:   createTLS13ServerHandshakeTimingInfo(c.config.Time),
-		}
-		return hs.handshake()
-	}
-
-	hs := serverHandshakeState{
-		c:           c,
-		ctx:         ctx,
-		clientHello: clientHello,
-	}
-	return hs.handshake()
-}
-
-func (hs *serverHandshakeState) handshake() error {
-	c := hs.c
-
-	if err := hs.processClientHello(); err != nil {
-		return err
-	}
-
-	// For an overview of TLS handshaking, see RFC 5246, Section 7.3.
-	c.buffering = true
-	if hs.checkForResumption() {
-		// The client has included a session ticket and so we do an abbreviated handshake.
-		c.didResume = true
-		if err := hs.doResumeHandshake(); err != nil {
-			return err
-		}
-		if err := hs.establishKeys(); err != nil {
-			return err
-		}
-		if err := hs.sendSessionTicket(); err != nil {
-			return err
-		}
-		if err := hs.sendFinished(c.serverFinished[:]); err != nil {
-			return err
-		}
-		if _, err := c.flush(); err != nil {
-			return err
-		}
-		c.clientFinishedIsFirst = false
-		if err := hs.readFinished(nil); err != nil {
-			return err
-		}
-	} else {
-		// The client didn't include a session ticket, or it wasn't
-		// valid so we do a full handshake.
-		if err := hs.pickCipherSuite(); err != nil {
-			return err
-		}
-		if err := hs.doFullHandshake(); err != nil {
-			return err
-		}
-		if err := hs.establishKeys(); err != nil {
-			return err
-		}
-		if err := hs.readFinished(c.clientFinished[:]); err != nil {
-			return err
-		}
-		c.clientFinishedIsFirst = true
-		c.buffering = true
-		if err := hs.sendSessionTicket(); err != nil {
-			return err
-		}
-		if err := hs.sendFinished(nil); err != nil {
-			return err
-		}
-		if _, err := c.flush(); err != nil {
-			return err
-		}
-	}
-
-	c.ekm = ekmFromMasterSecret(c.vers, hs.suite, hs.masterSecret, hs.clientHello.random, hs.hello.random)
-	atomic.StoreUint32(&c.handshakeStatus, 1)
-
-	return nil
-}
-
-// readClientHello reads a ClientHello message and selects the protocol version.
-func (c *Conn) readClientHello(ctx context.Context) (*clientHelloMsg, error) {
-	msg, err := c.readHandshake()
-	if err != nil {
-		return nil, err
-	}
-	clientHello, ok := msg.(*clientHelloMsg)
-	if !ok {
-		c.sendAlert(alertUnexpectedMessage)
-		return nil, unexpectedMessageError(clientHello, msg)
-	}
-
-	// NOTE(cjpatton): ECH usage is resolved before calling GetConfigForClient()
-	// or GetCertifciate(). Hence, it is not currently possible to reject ECH if
-	// we don't recognize the inner SNI. This may or may not be desirable in the
-	// future.
-	clientHello, err = c.echAcceptOrReject(clientHello, false) // afterHRR == false
-	if err != nil {
-		return nil, fmt.Errorf("tls: %s", err) // Alert sent.
-	}
-
-	var configForClient *Config
-	originalConfig := c.config
-	if c.config.GetConfigForClient != nil {
-		chi := clientHelloInfo(ctx, c, clientHello)
-		if configForClient, err = c.config.GetConfigForClient(chi); err != nil {
-			c.sendAlert(alertInternalError)
-			return nil, err
-		} else if configForClient != nil {
-			c.config = configForClient
-		}
-	}
-	c.ticketKeys = originalConfig.ticketKeys(configForClient)
-
-	clientVersions := clientHello.supportedVersions
-	if len(clientHello.supportedVersions) == 0 {
-		clientVersions = supportedVersionsFromMax(clientHello.vers)
-	}
-	c.vers, ok = c.config.mutualVersion(roleServer, clientVersions)
-	if !ok {
-		c.sendAlert(alertProtocolVersion)
-		return nil, fmt.Errorf("tls: client offered only unsupported versions: %x", clientVersions)
-	}
-	c.haveVers = true
-	c.in.version = c.vers
-	c.out.version = c.vers
-
-	return clientHello, nil
-}
-
-func (hs *serverHandshakeState) processClientHello() error {
-	c := hs.c
-
-	hs.hello = new(serverHelloMsg)
-	hs.hello.vers = c.vers
-
-	foundCompression := false
-	// We only support null compression, so check that the client offered it.
-	for _, compression := range hs.clientHello.compressionMethods {
-		if compression == compressionNone {
-			foundCompression = true
-			break
-		}
-	}
-
-	if !foundCompression {
-		c.sendAlert(alertHandshakeFailure)
-		return errors.New("tls: client does not support uncompressed connections")
-	}
-
-	hs.hello.random = make([]byte, 32)
-	serverRandom := hs.hello.random
-	// Downgrade protection canaries. See RFC 8446, Section 4.1.3.
-	maxVers := c.config.maxSupportedVersion(roleServer)
-	if maxVers >= VersionTLS12 && c.vers < maxVers || testingOnlyForceDowngradeCanary {
-		if c.vers == VersionTLS12 {
-			copy(serverRandom[24:], downgradeCanaryTLS12)
-		} else {
-			copy(serverRandom[24:], downgradeCanaryTLS11)
-		}
-		serverRandom = serverRandom[:24]
-	}
-	_, err := io.ReadFull(c.config.rand(), serverRandom)
-	if err != nil {
-		c.sendAlert(alertInternalError)
-		return err
-	}
-
-	if len(hs.clientHello.secureRenegotiation) != 0 {
-		c.sendAlert(alertHandshakeFailure)
-		return errors.New("tls: initial handshake had non-empty renegotiation extension")
-	}
-
-	hs.hello.secureRenegotiationSupported = hs.clientHello.secureRenegotiationSupported
-	hs.hello.compressionMethod = compressionNone
-	if len(hs.clientHello.serverName) > 0 {
-		c.serverName = hs.clientHello.serverName
-	}
-
-	selectedProto, err := negotiateALPN(c.config.NextProtos, hs.clientHello.alpnProtocols)
-	if err != nil {
-		c.sendAlert(alertNoApplicationProtocol)
-		return err
-	}
-	hs.hello.alpnProtocol = selectedProto
-	c.clientProtocol = selectedProto
-
-	hs.cert, err = c.config.getCertificate(clientHelloInfo(hs.ctx, c, hs.clientHello))
-	if err != nil {
-		if err == errNoCertificates {
-			c.sendAlert(alertUnrecognizedName)
-		} else {
-			c.sendAlert(alertInternalError)
-		}
-		return err
-	}
-	if hs.clientHello.scts {
-		hs.hello.scts = hs.cert.SignedCertificateTimestamps
-	}
-
-	hs.ecdheOk = supportsECDHE(c.config, hs.clientHello.supportedCurves, hs.clientHello.supportedPoints)
-
-	if hs.ecdheOk {
-		// Although omitting the ec_point_formats extension is permitted, some
-		// old OpenSSL version will refuse to handshake if not present.
-		//
-		// Per RFC 4492, section 5.1.2, implementations MUST support the
-		// uncompressed point format. See golang.org/issue/31943.
-		hs.hello.supportedPoints = []uint8{pointFormatUncompressed}
-	}
-
-	if priv, ok := hs.cert.PrivateKey.(crypto.Signer); ok {
-		switch priv.Public().(type) {
-		case *ecdsa.PublicKey:
-			hs.ecSignOk = true
-		case ed25519.PublicKey:
-			hs.ecSignOk = true
-		case *rsa.PublicKey:
-			hs.rsaSignOk = true
-		default:
-			c.sendAlert(alertInternalError)
-			return fmt.Errorf("tls: unsupported signing key type (%T)", priv.Public())
-		}
-	}
-	if priv, ok := hs.cert.PrivateKey.(crypto.Decrypter); ok {
-		switch priv.Public().(type) {
-		case *rsa.PublicKey:
-			hs.rsaDecryptOk = true
-		default:
-			c.sendAlert(alertInternalError)
-			return fmt.Errorf("tls: unsupported decryption key type (%T)", priv.Public())
-		}
-	}
-
-	return nil
-}
-
-// negotiateALPN picks a shared ALPN protocol that both sides support in server
-// preference order. If ALPN is not configured or the peer doesn't support it,
-// it returns "" and no error.
-func negotiateALPN(serverProtos, clientProtos []string) (string, error) {
-	if len(serverProtos) == 0 || len(clientProtos) == 0 {
-		return "", nil
-	}
-	var http11fallback bool
-	for _, s := range serverProtos {
-		for _, c := range clientProtos {
-			if s == c {
-				return s, nil
-			}
-			if s == "h2" && c == "http/1.1" {
-				http11fallback = true
-			}
-		}
-	}
-	// As a special case, let http/1.1 clients connect to h2 servers as if they
-	// didn't support ALPN. We used not to enforce protocol overlap, so over
-	// time a number of HTTP servers were configured with only "h2", but
-	// expected to accept connections from "http/1.1" clients. See Issue 46310.
-	if http11fallback {
-		return "", nil
-	}
-	return "", fmt.Errorf("tls: client requested unsupported application protocols (%s)", clientProtos)
-}
-
-// supportsECDHE returns whether ECDHE key exchanges can be used with this
-// pre-TLS 1.3 client.
-func supportsECDHE(c *Config, supportedCurves []CurveID, supportedPoints []uint8) bool {
-	supportsCurve := false
-	for _, curve := range supportedCurves {
-		if c.supportsCurve(curve) {
-			supportsCurve = true
-			break
-		}
-	}
-
-	supportsPointFormat := false
-	for _, pointFormat := range supportedPoints {
-		if pointFormat == pointFormatUncompressed {
-			supportsPointFormat = true
-			break
-		}
-	}
-
-	return supportsCurve && supportsPointFormat
-}
-
-func (hs *serverHandshakeState) pickCipherSuite() error {
-	c := hs.c
-
-	preferenceOrder := cipherSuitesPreferenceOrder
-	if !hasAESGCMHardwareSupport || !aesgcmPreferred(hs.clientHello.cipherSuites) {
-		preferenceOrder = cipherSuitesPreferenceOrderNoAES
-	}
-
-	configCipherSuites := c.config.cipherSuites()
-	preferenceList := make([]uint16, 0, len(configCipherSuites))
-	for _, suiteID := range preferenceOrder {
-		for _, id := range configCipherSuites {
-			if id == suiteID {
-				preferenceList = append(preferenceList, id)
-				break
-			}
-		}
-	}
-
-	hs.suite = selectCipherSuite(preferenceList, hs.clientHello.cipherSuites, hs.cipherSuiteOk)
-	if hs.suite == nil {
-		c.sendAlert(alertHandshakeFailure)
-		return errors.New("tls: no cipher suite supported by both client and server")
-	}
-	c.cipherSuite = hs.suite.id
-
-	for _, id := range hs.clientHello.cipherSuites {
-		if id == TLS_FALLBACK_SCSV {
-			// The client is doing a fallback connection. See RFC 7507.
-			if hs.clientHello.vers < c.config.maxSupportedVersion(roleServer) {
-				c.sendAlert(alertInappropriateFallback)
-				return errors.New("tls: client using inappropriate protocol fallback")
-			}
-			break
-		}
-	}
-
-	return nil
-}
-
-func (hs *serverHandshakeState) cipherSuiteOk(c *cipherSuite) bool {
-	if c.flags&suiteECDHE != 0 {
-		if !hs.ecdheOk {
-			return false
-		}
-		if c.flags&suiteECSign != 0 {
-			if !hs.ecSignOk {
-				return false
-			}
-		} else if !hs.rsaSignOk {
-			return false
-		}
-	} else if !hs.rsaDecryptOk {
-		return false
-	}
-	if hs.c.vers < VersionTLS12 && c.flags&suiteTLS12 != 0 {
-		return false
-	}
-	return true
-}
-
-// checkForResumption reports whether we should perform resumption on this connection.
-func (hs *serverHandshakeState) checkForResumption() bool {
-	c := hs.c
-
-	if c.config.SessionTicketsDisabled || c.config.ECHEnabled {
-		return false
-	}
-
-	plaintext, usedOldKey := c.decryptTicket(hs.clientHello.sessionTicket)
-	if plaintext == nil {
-		return false
-	}
-	hs.sessionState = &sessionState{usedOldKey: usedOldKey}
-	ok := hs.sessionState.unmarshal(plaintext)
-	if !ok {
-		return false
-	}
-
-	createdAt := time.Unix(int64(hs.sessionState.createdAt), 0)
-	if c.config.time().Sub(createdAt) > maxSessionTicketLifetime {
-		return false
-	}
-
-	// Never resume a session for a different TLS version.
-	if c.vers != hs.sessionState.vers {
-		return false
-	}
-
-	cipherSuiteOk := false
-	// Check that the client is still offering the ciphersuite in the session.
-	for _, id := range hs.clientHello.cipherSuites {
-		if id == hs.sessionState.cipherSuite {
-			cipherSuiteOk = true
-			break
-		}
-	}
-	if !cipherSuiteOk {
-		return false
-	}
-
-	// Check that we also support the ciphersuite from the session.
-	hs.suite = selectCipherSuite([]uint16{hs.sessionState.cipherSuite},
-		c.config.cipherSuites(), hs.cipherSuiteOk)
-	if hs.suite == nil {
-		return false
-	}
-
-	sessionHasClientCerts := len(hs.sessionState.certificates) != 0
-	needClientCerts := requiresClientCert(c.config.ClientAuth)
-	if needClientCerts && !sessionHasClientCerts {
-		return false
-	}
-	if sessionHasClientCerts && c.config.ClientAuth == NoClientCert {
-		return false
-	}
-
-	return true
-}
-
-func (hs *serverHandshakeState) doResumeHandshake() error {
-	c := hs.c
-
-	hs.hello.cipherSuite = hs.suite.id
-	c.cipherSuite = hs.suite.id
-	// We echo the client's session ID in the ServerHello to let it know
-	// that we're doing a resumption.
-	hs.hello.sessionId = hs.clientHello.sessionId
-	hs.hello.ticketSupported = hs.sessionState.usedOldKey
-	hs.finishedHash = newFinishedHash(c.vers, hs.suite)
-	hs.finishedHash.discardHandshakeBuffer()
-	hs.finishedHash.Write(hs.clientHello.marshal())
-	hs.finishedHash.Write(hs.hello.marshal())
-	if _, err := c.writeRecord(recordTypeHandshake, hs.hello.marshal()); err != nil {
-		return err
-	}
-
-	if err := c.processCertsFromClient(Certificate{
-		Certificate: hs.sessionState.certificates,
-	}); err != nil {
-		return err
-	}
-
-	if c.config.VerifyConnection != nil {
-		if err := c.config.VerifyConnection(c.connectionStateLocked()); err != nil {
-			c.sendAlert(alertBadCertificate)
-			return err
-		}
-	}
-
-	hs.masterSecret = hs.sessionState.masterSecret
-
-	return nil
-}
-
-func (hs *serverHandshakeState) doFullHandshake() error {
-	c := hs.c
-
-	if hs.clientHello.ocspStapling && len(hs.cert.OCSPStaple) > 0 {
-		hs.hello.ocspStapling = true
-	}
-
-	hs.hello.ticketSupported = hs.clientHello.ticketSupported && !c.config.SessionTicketsDisabled && !c.config.ECHEnabled
-	hs.hello.cipherSuite = hs.suite.id
-
-	hs.finishedHash = newFinishedHash(hs.c.vers, hs.suite)
-	if c.config.ClientAuth == NoClientCert {
-		// No need to keep a full record of the handshake if client
-		// certificates won't be used.
-		hs.finishedHash.discardHandshakeBuffer()
-	}
-	hs.finishedHash.Write(hs.clientHello.marshal())
-	hs.finishedHash.Write(hs.hello.marshal())
-	if _, err := c.writeRecord(recordTypeHandshake, hs.hello.marshal()); err != nil {
-		return err
-	}
-
-	certMsg := new(certificateMsg)
-	certMsg.certificates = hs.cert.Certificate
-	hs.finishedHash.Write(certMsg.marshal())
-	if _, err := c.writeRecord(recordTypeHandshake, certMsg.marshal()); err != nil {
-		return err
-	}
-
-	if hs.hello.ocspStapling {
-		certStatus := new(certificateStatusMsg)
-		certStatus.response = hs.cert.OCSPStaple
-		hs.finishedHash.Write(certStatus.marshal())
-		if _, err := c.writeRecord(recordTypeHandshake, certStatus.marshal()); err != nil {
-			return err
-		}
-	}
-
-	keyAgreement := hs.suite.ka(c.vers)
-	skx, err := keyAgreement.generateServerKeyExchange(c.config, hs.cert, hs.clientHello, hs.hello)
-	if err != nil {
-		c.sendAlert(alertHandshakeFailure)
-		return err
-	}
-	if skx != nil {
-		hs.finishedHash.Write(skx.marshal())
-		if _, err := c.writeRecord(recordTypeHandshake, skx.marshal()); err != nil {
-			return err
-		}
-	}
-
-	var certReq *certificateRequestMsg
-	if c.config.ClientAuth >= RequestClientCert {
-		// Request a client certificate
-		certReq = new(certificateRequestMsg)
-		certReq.certificateTypes = []byte{
-			byte(certTypeRSASign),
-			byte(certTypeECDSASign),
-		}
-		if c.vers >= VersionTLS12 {
-			certReq.hasSignatureAlgorithm = true
-			certReq.supportedSignatureAlgorithms = c.config.supportedSignatureAlgorithms()
-		}
-
-		// An empty list of certificateAuthorities signals to
-		// the client that it may send any certificate in response
-		// to our request. When we know the CAs we trust, then
-		// we can send them down, so that the client can choose
-		// an appropriate certificate to give to us.
-		if c.config.ClientCAs != nil {
-			certReq.certificateAuthorities = c.config.ClientCAs.Subjects()
-		}
-		hs.finishedHash.Write(certReq.marshal())
-		if _, err := c.writeRecord(recordTypeHandshake, certReq.marshal()); err != nil {
-			return err
-		}
-	}
-
-	helloDone := new(serverHelloDoneMsg)
-	hs.finishedHash.Write(helloDone.marshal())
-	if _, err := c.writeRecord(recordTypeHandshake, helloDone.marshal()); err != nil {
-		return err
-	}
-
-	if _, err := c.flush(); err != nil {
-		return err
-	}
-
-	var pub crypto.PublicKey // public key for client auth, if any
-
-	msg, err := c.readHandshake()
-	if err != nil {
-		return err
-	}
-
-	// If we requested a client certificate, then the client must send a
-	// certificate message, even if it's empty.
-	if c.config.ClientAuth >= RequestClientCert {
-		certMsg, ok := msg.(*certificateMsg)
-		if !ok {
-			c.sendAlert(alertUnexpectedMessage)
-			return unexpectedMessageError(certMsg, msg)
-		}
-		hs.finishedHash.Write(certMsg.marshal())
-
-		if err := c.processCertsFromClient(Certificate{
-			Certificate: certMsg.certificates,
-		}); err != nil {
-			return err
-		}
-		if len(certMsg.certificates) != 0 {
-			pub = c.peerCertificates[0].PublicKey
-		}
-
-		msg, err = c.readHandshake()
-		if err != nil {
-			return err
-		}
-	}
-	if c.config.VerifyConnection != nil {
-		if err := c.config.VerifyConnection(c.connectionStateLocked()); err != nil {
-			c.sendAlert(alertBadCertificate)
-			return err
-		}
-	}
-
-	// Get client key exchange
-	ckx, ok := msg.(*clientKeyExchangeMsg)
-	if !ok {
-		c.sendAlert(alertUnexpectedMessage)
-		return unexpectedMessageError(ckx, msg)
-	}
-	hs.finishedHash.Write(ckx.marshal())
-
-	preMasterSecret, err := keyAgreement.processClientKeyExchange(c.config, hs.cert, ckx, c.vers)
-	if err != nil {
-		c.sendAlert(alertHandshakeFailure)
-		return err
-	}
-	if eccKex, ok := keyAgreement.(*ecdheKeyAgreement); ok {
-		c.handleCFEvent(CFEventTLSNegotiatedNamedKEX{
-			KEX: eccKex.params.CurveID(),
-		})
-	}
-	hs.masterSecret = masterFromPreMasterSecret(c.vers, hs.suite, preMasterSecret, hs.clientHello.random, hs.hello.random)
-	if err := c.config.writeKeyLog(keyLogLabelTLS12, hs.clientHello.random, hs.masterSecret); err != nil {
-		c.sendAlert(alertInternalError)
-		return err
-	}
-
-	// If we received a client cert in response to our certificate request message,
-	// the client will send us a certificateVerifyMsg immediately after the
-	// clientKeyExchangeMsg. This message is a digest of all preceding
-	// handshake-layer messages that is signed using the private key corresponding
-	// to the client's certificate. This allows us to verify that the client is in
-	// possession of the private key of the certificate.
-	if len(c.peerCertificates) > 0 {
-		msg, err = c.readHandshake()
-		if err != nil {
-			return err
-		}
-		certVerify, ok := msg.(*certificateVerifyMsg)
-		if !ok {
-			c.sendAlert(alertUnexpectedMessage)
-			return unexpectedMessageError(certVerify, msg)
-		}
-
-		var sigType uint8
-		var sigHash crypto.Hash
-		if c.vers >= VersionTLS12 {
-			if !isSupportedSignatureAlgorithm(certVerify.signatureAlgorithm, certReq.supportedSignatureAlgorithms) {
-				c.sendAlert(alertIllegalParameter)
-				return errors.New("tls: client certificate used with invalid signature algorithm")
-			}
-			sigType, sigHash, err = typeAndHashFromSignatureScheme(certVerify.signatureAlgorithm)
-			if err != nil {
-				return c.sendAlert(alertInternalError)
-			}
-		} else {
-			sigType, sigHash, err = legacyTypeAndHashFromPublicKey(pub)
-			if err != nil {
-				c.sendAlert(alertIllegalParameter)
-				return err
-			}
-		}
-
-		signed := hs.finishedHash.hashForClientCertificate(sigType, sigHash, hs.masterSecret)
-		if err := verifyHandshakeSignature(sigType, pub, sigHash, signed, certVerify.signature); err != nil {
-			c.sendAlert(alertDecryptError)
-			return errors.New("tls: invalid signature by the client certificate: " + err.Error())
-		}
-
-		hs.finishedHash.Write(certVerify.marshal())
-	}
-
-	hs.finishedHash.discardHandshakeBuffer()
-
-	return nil
-}
-
-func (hs *serverHandshakeState) establishKeys() error {
-	c := hs.c
-
-	clientMAC, serverMAC, clientKey, serverKey, clientIV, serverIV := keysFromMasterSecret(c.vers, hs.suite, hs.masterSecret, hs.clientHello.random, hs.hello.random, hs.suite.macLen, hs.suite.keyLen, hs.suite.ivLen)
-
-	var clientCipher, serverCipher any
-	var clientHash, serverHash hash.Hash
-
-	if hs.suite.aead == nil {
-		clientCipher = hs.suite.cipher(clientKey, clientIV, true /* for reading */)
-		clientHash = hs.suite.mac(clientMAC)
-		serverCipher = hs.suite.cipher(serverKey, serverIV, false /* not for reading */)
-		serverHash = hs.suite.mac(serverMAC)
-	} else {
-		clientCipher = hs.suite.aead(clientKey, clientIV)
-		serverCipher = hs.suite.aead(serverKey, serverIV)
-	}
-
-	c.in.prepareCipherSpec(c.vers, clientCipher, clientHash)
-	c.out.prepareCipherSpec(c.vers, serverCipher, serverHash)
-
-	return nil
-}
-
-func (hs *serverHandshakeState) readFinished(out []byte) error {
-	c := hs.c
-
-	if err := c.readChangeCipherSpec(); err != nil {
-		return err
-	}
-
-	msg, err := c.readHandshake()
-	if err != nil {
-		return err
-	}
-	clientFinished, ok := msg.(*finishedMsg)
-	if !ok {
-		c.sendAlert(alertUnexpectedMessage)
-		return unexpectedMessageError(clientFinished, msg)
-	}
-
-	verify := hs.finishedHash.clientSum(hs.masterSecret)
-	if len(verify) != len(clientFinished.verifyData) ||
-		subtle.ConstantTimeCompare(verify, clientFinished.verifyData) != 1 {
-		c.sendAlert(alertHandshakeFailure)
-		return errors.New("tls: client's Finished message is incorrect")
-	}
-
-	hs.finishedHash.Write(clientFinished.marshal())
-	copy(out, verify)
-	return nil
-}
-
-func (hs *serverHandshakeState) sendSessionTicket() error {
-	// ticketSupported is set in a resumption handshake if the
-	// ticket from the client was encrypted with an old session
-	// ticket key and thus a refreshed ticket should be sent.
-	if !hs.hello.ticketSupported {
-		return nil
-	}
-
-	c := hs.c
-	m := new(newSessionTicketMsg)
-
-	createdAt := uint64(c.config.time().Unix())
-	if hs.sessionState != nil {
-		// If this is re-wrapping an old key, then keep
-		// the original time it was created.
-		createdAt = hs.sessionState.createdAt
-	}
-
-	var certsFromClient [][]byte
-	for _, cert := range c.peerCertificates {
-		certsFromClient = append(certsFromClient, cert.Raw)
-	}
-	state := sessionState{
-		vers:         c.vers,
-		cipherSuite:  hs.suite.id,
-		createdAt:    createdAt,
-		masterSecret: hs.masterSecret,
-		certificates: certsFromClient,
-	}
-	var err error
-	m.ticket, err = c.encryptTicket(state.marshal())
-	if err != nil {
-		return err
-	}
-
-	hs.finishedHash.Write(m.marshal())
-	if _, err := c.writeRecord(recordTypeHandshake, m.marshal()); err != nil {
-		return err
-	}
-
-	return nil
-}
-
-func (hs *serverHandshakeState) sendFinished(out []byte) error {
-	c := hs.c
-
-	if _, err := c.writeRecord(recordTypeChangeCipherSpec, []byte{1}); err != nil {
-		return err
-	}
-
-	finished := new(finishedMsg)
-	finished.verifyData = hs.finishedHash.serverSum(hs.masterSecret)
-	hs.finishedHash.Write(finished.marshal())
-	if _, err := c.writeRecord(recordTypeHandshake, finished.marshal()); err != nil {
-		return err
-	}
-
-	copy(out, finished.verifyData)
-
-	return nil
-}
-
-// processCertsFromClient takes a chain of client certificates either from a
-// Certificates message or from a sessionState and verifies them. It returns
-// the public key of the leaf certificate.
-func (c *Conn) processCertsFromClient(certificate Certificate) error {
-	certificates := certificate.Certificate
-	certs := make([]*x509.Certificate, len(certificates))
-	var err error
-	for i, asn1Data := range certificates {
-		if certs[i], err = x509.ParseCertificate(asn1Data); err != nil {
-			c.sendAlert(alertBadCertificate)
-			return errors.New("tls: failed to parse client certificate: " + err.Error())
-		}
-	}
-
-	if len(certs) == 0 && requiresClientCert(c.config.ClientAuth) {
-		c.sendAlert(alertBadCertificate)
-		return errors.New("tls: client didn't provide a certificate")
-	}
-
-	if c.config.ClientAuth >= VerifyClientCertIfGiven && len(certs) > 0 {
-		opts := x509.VerifyOptions{
-			Roots:         c.config.ClientCAs,
-			CurrentTime:   c.config.time(),
-			Intermediates: x509.NewCertPool(),
-			KeyUsages:     []x509.ExtKeyUsage{x509.ExtKeyUsageClientAuth},
-		}
-
-		for _, cert := range certs[1:] {
-			opts.Intermediates.AddCert(cert)
-		}
-
-		chains, err := certs[0].Verify(opts)
-		if err != nil {
-			c.sendAlert(alertBadCertificate)
-			return errors.New("tls: failed to verify client certificate: " + err.Error())
-		}
-
-		c.verifiedChains = chains
-	}
-
-	c.peerCertificates = certs
-	c.ocspResponse = certificate.OCSPStaple
-	c.scts = certificate.SignedCertificateTimestamps
-
-	if len(certs) > 0 {
-		switch certs[0].PublicKey.(type) {
-		case *ecdsa.PublicKey, *rsa.PublicKey, ed25519.PublicKey, circlSign.PublicKey:
-		default:
-			c.sendAlert(alertUnsupportedCertificate)
-			return fmt.Errorf("tls: client certificate contains an unsupported public key of type %T", certs[0].PublicKey)
-		}
-	}
-
-	if c.config.VerifyPeerCertificate != nil {
-		if err := c.config.VerifyPeerCertificate(certificates, c.verifiedChains); err != nil {
-			c.sendAlert(alertBadCertificate)
-			return err
-		}
-	}
-
-	return nil
-}
-
-func clientHelloInfo(ctx context.Context, c *Conn, clientHello *clientHelloMsg) *ClientHelloInfo {
-	supportedVersions := clientHello.supportedVersions
-	if len(clientHello.supportedVersions) == 0 {
-		supportedVersions = supportedVersionsFromMax(clientHello.vers)
-	}
-
-	return &ClientHelloInfo{
-		CipherSuites:                clientHello.cipherSuites,
-		ServerName:                  clientHello.serverName,
-		SupportedCurves:             clientHello.supportedCurves,
-		SupportedPoints:             clientHello.supportedPoints,
-		SignatureSchemes:            clientHello.supportedSignatureAlgorithms,
-		SupportedProtos:             clientHello.alpnProtocols,
-		SupportedVersions:           supportedVersions,
-		SupportsDelegatedCredential: clientHello.delegatedCredentialSupported,
-		SignatureSchemesDC:          clientHello.supportedSignatureAlgorithmsDC,
-		Conn:                        c.conn,
-		config:                      c.config,
-		ctx:                         ctx,
-	}
-}

transport/cloudflaretls/hpke.go

@@ -1,42 +0,0 @@
-// Copyright 2020 Cloudflare, Inc. All rights reserved. Use of this source code
-// is governed by a BSD-style license that can be found in the LICENSE file.
-
-package tls
-
-import (
-	"errors"
-	"fmt"
-
-	"github.com/cloudflare/circl/hpke"
-)
-
-// The mandatory-to-implement HPKE cipher suite for use with the ECH extension.
-var defaultHPKESuite hpke.Suite
-
-func init() {
-	var err error
-	defaultHPKESuite, err = hpkeAssembleSuite(
-		uint16(hpke.KEM_X25519_HKDF_SHA256),
-		uint16(hpke.KDF_HKDF_SHA256),
-		uint16(hpke.AEAD_AES128GCM),
-	)
-	if err != nil {
-		panic(fmt.Sprintf("hpke: mandatory-to-implement cipher suite not supported: %s", err))
-	}
-}
-
-func hpkeAssembleSuite(kemId, kdfId, aeadId uint16) (hpke.Suite, error) {
-	kem := hpke.KEM(kemId)
-	if !kem.IsValid() {
-		return hpke.Suite{}, errors.New("KEM is not supported")
-	}
-	kdf := hpke.KDF(kdfId)
-	if !kdf.IsValid() {
-		return hpke.Suite{}, errors.New("KDF is not supported")
-	}
-	aead := hpke.AEAD(aeadId)
-	if !aead.IsValid() {
-		return hpke.Suite{}, errors.New("AEAD is not supported")
-	}
-	return hpke.NewSuite(kem, kdf, aead), nil
-}

transport/cloudflaretls/key_agreement.go

@@ -1,359 +0,0 @@
-// Copyright 2010 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package tls
-
-import (
-	"crypto"
-	"crypto/md5"
-	"crypto/rsa"
-	"crypto/sha1"
-	"crypto/x509"
-	"errors"
-	"fmt"
-	"io"
-)
-
-// a keyAgreement implements the client and server side of a TLS key agreement
-// protocol by generating and processing key exchange messages.
-type keyAgreement interface {
-	// On the server side, the first two methods are called in order.
-
-	// In the case that the key agreement protocol doesn't use a
-	// ServerKeyExchange message, generateServerKeyExchange can return nil,
-	// nil.
-	generateServerKeyExchange(*Config, *Certificate, *clientHelloMsg, *serverHelloMsg) (*serverKeyExchangeMsg, error)
-	processClientKeyExchange(*Config, *Certificate, *clientKeyExchangeMsg, uint16) ([]byte, error)
-
-	// On the client side, the next two methods are called in order.
-
-	// This method may not be called if the server doesn't send a
-	// ServerKeyExchange message.
-	processServerKeyExchange(*Config, *clientHelloMsg, *serverHelloMsg, *x509.Certificate, *serverKeyExchangeMsg) error
-	generateClientKeyExchange(*Config, *clientHelloMsg, *x509.Certificate) ([]byte, *clientKeyExchangeMsg, error)
-}
-
-var (
-	errClientKeyExchange = errors.New("tls: invalid ClientKeyExchange message")
-	errServerKeyExchange = errors.New("tls: invalid ServerKeyExchange message")
-)
-
-// rsaKeyAgreement implements the standard TLS key agreement where the client
-// encrypts the pre-master secret to the server's public key.
-type rsaKeyAgreement struct{}
-
-func (ka rsaKeyAgreement) generateServerKeyExchange(config *Config, cert *Certificate, clientHello *clientHelloMsg, hello *serverHelloMsg) (*serverKeyExchangeMsg, error) {
-	return nil, nil
-}
-
-func (ka rsaKeyAgreement) processClientKeyExchange(config *Config, cert *Certificate, ckx *clientKeyExchangeMsg, version uint16) ([]byte, error) {
-	if len(ckx.ciphertext) < 2 {
-		return nil, errClientKeyExchange
-	}
-	ciphertextLen := int(ckx.ciphertext[0])<<8 | int(ckx.ciphertext[1])
-	if ciphertextLen != len(ckx.ciphertext)-2 {
-		return nil, errClientKeyExchange
-	}
-	ciphertext := ckx.ciphertext[2:]
-
-	priv, ok := cert.PrivateKey.(crypto.Decrypter)
-	if !ok {
-		return nil, errors.New("tls: certificate private key does not implement crypto.Decrypter")
-	}
-	// Perform constant time RSA PKCS #1 v1.5 decryption
-	preMasterSecret, err := priv.Decrypt(config.rand(), ciphertext, &rsa.PKCS1v15DecryptOptions{SessionKeyLen: 48})
-	if err != nil {
-		return nil, err
-	}
-	// We don't check the version number in the premaster secret. For one,
-	// by checking it, we would leak information about the validity of the
-	// encrypted pre-master secret. Secondly, it provides only a small
-	// benefit against a downgrade attack and some implementations send the
-	// wrong version anyway. See the discussion at the end of section
-	// 7.4.7.1 of RFC 4346.
-	return preMasterSecret, nil
-}
-
-func (ka rsaKeyAgreement) processServerKeyExchange(config *Config, clientHello *clientHelloMsg, serverHello *serverHelloMsg, cert *x509.Certificate, skx *serverKeyExchangeMsg) error {
-	return errors.New("tls: unexpected ServerKeyExchange")
-}
-
-func (ka rsaKeyAgreement) generateClientKeyExchange(config *Config, clientHello *clientHelloMsg, cert *x509.Certificate) ([]byte, *clientKeyExchangeMsg, error) {
-	preMasterSecret := make([]byte, 48)
-	preMasterSecret[0] = byte(clientHello.vers >> 8)
-	preMasterSecret[1] = byte(clientHello.vers)
-	_, err := io.ReadFull(config.rand(), preMasterSecret[2:])
-	if err != nil {
-		return nil, nil, err
-	}
-
-	rsaKey, ok := cert.PublicKey.(*rsa.PublicKey)
-	if !ok {
-		return nil, nil, errors.New("tls: server certificate contains incorrect key type for selected ciphersuite")
-	}
-	encrypted, err := rsa.EncryptPKCS1v15(config.rand(), rsaKey, preMasterSecret)
-	if err != nil {
-		return nil, nil, err
-	}
-	ckx := new(clientKeyExchangeMsg)
-	ckx.ciphertext = make([]byte, len(encrypted)+2)
-	ckx.ciphertext[0] = byte(len(encrypted) >> 8)
-	ckx.ciphertext[1] = byte(len(encrypted))
-	copy(ckx.ciphertext[2:], encrypted)
-	return preMasterSecret, ckx, nil
-}
-
-// sha1Hash calculates a SHA1 hash over the given byte slices.
-func sha1Hash(slices [][]byte) []byte {
-	hsha1 := sha1.New()
-	for _, slice := range slices {
-		hsha1.Write(slice)
-	}
-	return hsha1.Sum(nil)
-}
-
-// md5SHA1Hash implements TLS 1.0's hybrid hash function which consists of the
-// concatenation of an MD5 and SHA1 hash.
-func md5SHA1Hash(slices [][]byte) []byte {
-	md5sha1 := make([]byte, md5.Size+sha1.Size)
-	hmd5 := md5.New()
-	for _, slice := range slices {
-		hmd5.Write(slice)
-	}
-	copy(md5sha1, hmd5.Sum(nil))
-	copy(md5sha1[md5.Size:], sha1Hash(slices))
-	return md5sha1
-}
-
-// hashForServerKeyExchange hashes the given slices and returns their digest
-// using the given hash function (for >= TLS 1.2) or using a default based on
-// the sigType (for earlier TLS versions). For Ed25519 signatures, which don't
-// do pre-hashing, it returns the concatenation of the slices.
-func hashForServerKeyExchange(sigType uint8, hashFunc crypto.Hash, version uint16, slices ...[]byte) []byte {
-	if sigType == signatureEd25519 || circlSchemeBySigType(sigType) != nil {
-		var signed []byte
-		for _, slice := range slices {
-			signed = append(signed, slice...)
-		}
-		return signed
-	}
-	if version >= VersionTLS12 {
-		h := hashFunc.New()
-		for _, slice := range slices {
-			h.Write(slice)
-		}
-		digest := h.Sum(nil)
-		return digest
-	}
-	if sigType == signatureECDSA {
-		return sha1Hash(slices)
-	}
-	return md5SHA1Hash(slices)
-}
-
-// ecdheKeyAgreement implements a TLS key agreement where the server
-// generates an ephemeral EC public/private key pair and signs it. The
-// pre-master secret is then calculated using ECDH. The signature may
-// be ECDSA, Ed25519 or RSA.
-type ecdheKeyAgreement struct {
-	version uint16
-	isRSA   bool
-	params  ecdheParameters
-
-	// ckx and preMasterSecret are generated in processServerKeyExchange
-	// and returned in generateClientKeyExchange.
-	ckx             *clientKeyExchangeMsg
-	preMasterSecret []byte
-}
-
-func (ka *ecdheKeyAgreement) generateServerKeyExchange(config *Config, cert *Certificate, clientHello *clientHelloMsg, hello *serverHelloMsg) (*serverKeyExchangeMsg, error) {
-	var curveID CurveID
-	for _, c := range clientHello.supportedCurves {
-		if config.supportsCurve(c) && curveIdToCirclScheme(c) == nil {
-			curveID = c
-			break
-		}
-	}
-
-	if curveID == 0 {
-		return nil, errors.New("tls: no supported elliptic curves offered")
-	}
-	if _, ok := curveForCurveID(curveID); curveID != X25519 && !ok {
-		return nil, errors.New("tls: CurvePreferences includes unsupported curve")
-	}
-
-	params, err := generateECDHEParameters(config.rand(), curveID)
-	if err != nil {
-		return nil, err
-	}
-	ka.params = params
-
-	// See RFC 4492, Section 5.4.
-	ecdhePublic := params.PublicKey()
-	serverECDHEParams := make([]byte, 1+2+1+len(ecdhePublic))
-	serverECDHEParams[0] = 3 // named curve
-	serverECDHEParams[1] = byte(curveID >> 8)
-	serverECDHEParams[2] = byte(curveID)
-	serverECDHEParams[3] = byte(len(ecdhePublic))
-	copy(serverECDHEParams[4:], ecdhePublic)
-
-	priv, ok := cert.PrivateKey.(crypto.Signer)
-	if !ok {
-		return nil, fmt.Errorf("tls: certificate private key of type %T does not implement crypto.Signer", cert.PrivateKey)
-	}
-
-	var signatureAlgorithm SignatureScheme
-	var sigType uint8
-	var sigHash crypto.Hash
-	if ka.version >= VersionTLS12 {
-		signatureAlgorithm, err = selectSignatureScheme(ka.version, cert, clientHello.supportedSignatureAlgorithms)
-		if err != nil {
-			return nil, err
-		}
-		sigType, sigHash, err = typeAndHashFromSignatureScheme(signatureAlgorithm)
-		if err != nil {
-			return nil, err
-		}
-	} else {
-		sigType, sigHash, err = legacyTypeAndHashFromPublicKey(priv.Public())
-		if err != nil {
-			return nil, err
-		}
-	}
-	if (sigType == signaturePKCS1v15 || sigType == signatureRSAPSS) != ka.isRSA {
-		return nil, errors.New("tls: certificate cannot be used with the selected cipher suite")
-	}
-
-	signed := hashForServerKeyExchange(sigType, sigHash, ka.version, clientHello.random, hello.random, serverECDHEParams)
-
-	signOpts := crypto.SignerOpts(sigHash)
-	if sigType == signatureRSAPSS {
-		signOpts = &rsa.PSSOptions{SaltLength: rsa.PSSSaltLengthEqualsHash, Hash: sigHash}
-	}
-	sig, err := priv.Sign(config.rand(), signed, signOpts)
-	if err != nil {
-		return nil, errors.New("tls: failed to sign ECDHE parameters: " + err.Error())
-	}
-
-	skx := new(serverKeyExchangeMsg)
-	sigAndHashLen := 0
-	if ka.version >= VersionTLS12 {
-		sigAndHashLen = 2
-	}
-	skx.key = make([]byte, len(serverECDHEParams)+sigAndHashLen+2+len(sig))
-	copy(skx.key, serverECDHEParams)
-	k := skx.key[len(serverECDHEParams):]
-	if ka.version >= VersionTLS12 {
-		k[0] = byte(signatureAlgorithm >> 8)
-		k[1] = byte(signatureAlgorithm)
-		k = k[2:]
-	}
-	k[0] = byte(len(sig) >> 8)
-	k[1] = byte(len(sig))
-	copy(k[2:], sig)
-
-	return skx, nil
-}
-
-func (ka *ecdheKeyAgreement) processClientKeyExchange(config *Config, cert *Certificate, ckx *clientKeyExchangeMsg, version uint16) ([]byte, error) {
-	if len(ckx.ciphertext) == 0 || int(ckx.ciphertext[0]) != len(ckx.ciphertext)-1 {
-		return nil, errClientKeyExchange
-	}
-
-	preMasterSecret := ka.params.SharedKey(ckx.ciphertext[1:])
-	if preMasterSecret == nil {
-		return nil, errClientKeyExchange
-	}
-
-	return preMasterSecret, nil
-}
-
-func (ka *ecdheKeyAgreement) processServerKeyExchange(config *Config, clientHello *clientHelloMsg, serverHello *serverHelloMsg, cert *x509.Certificate, skx *serverKeyExchangeMsg) error {
-	if len(skx.key) < 4 {
-		return errServerKeyExchange
-	}
-	if skx.key[0] != 3 { // named curve
-		return errors.New("tls: server selected unsupported curve")
-	}
-	curveID := CurveID(skx.key[1])<<8 | CurveID(skx.key[2])
-
-	publicLen := int(skx.key[3])
-	if publicLen+4 > len(skx.key) {
-		return errServerKeyExchange
-	}
-	serverECDHEParams := skx.key[:4+publicLen]
-	publicKey := serverECDHEParams[4:]
-
-	sig := skx.key[4+publicLen:]
-	if len(sig) < 2 {
-		return errServerKeyExchange
-	}
-
-	if _, ok := curveForCurveID(curveID); curveID != X25519 && !ok {
-		return errors.New("tls: server selected unsupported curve")
-	}
-
-	params, err := generateECDHEParameters(config.rand(), curveID)
-	if err != nil {
-		return err
-	}
-	ka.params = params
-
-	ka.preMasterSecret = params.SharedKey(publicKey)
-	if ka.preMasterSecret == nil {
-		return errServerKeyExchange
-	}
-
-	ourPublicKey := params.PublicKey()
-	ka.ckx = new(clientKeyExchangeMsg)
-	ka.ckx.ciphertext = make([]byte, 1+len(ourPublicKey))
-	ka.ckx.ciphertext[0] = byte(len(ourPublicKey))
-	copy(ka.ckx.ciphertext[1:], ourPublicKey)
-
-	var sigType uint8
-	var sigHash crypto.Hash
-	if ka.version >= VersionTLS12 {
-		signatureAlgorithm := SignatureScheme(sig[0])<<8 | SignatureScheme(sig[1])
-		sig = sig[2:]
-		if len(sig) < 2 {
-			return errServerKeyExchange
-		}
-
-		if !isSupportedSignatureAlgorithm(signatureAlgorithm, clientHello.supportedSignatureAlgorithms) {
-			return errors.New("tls: certificate used with invalid signature algorithm")
-		}
-		sigType, sigHash, err = typeAndHashFromSignatureScheme(signatureAlgorithm)
-		if err != nil {
-			return err
-		}
-	} else {
-		sigType, sigHash, err = legacyTypeAndHashFromPublicKey(cert.PublicKey)
-		if err != nil {
-			return err
-		}
-	}
-	if (sigType == signaturePKCS1v15 || sigType == signatureRSAPSS) != ka.isRSA {
-		return errServerKeyExchange
-	}
-
-	sigLen := int(sig[0])<<8 | int(sig[1])
-	if sigLen+2 != len(sig) {
-		return errServerKeyExchange
-	}
-	sig = sig[2:]
-
-	signed := hashForServerKeyExchange(sigType, sigHash, ka.version, clientHello.random, serverHello.random, serverECDHEParams)
-	if err := verifyHandshakeSignature(sigType, cert.PublicKey, sigHash, signed, sig); err != nil {
-		return errors.New("tls: invalid signature by the server certificate: " + err.Error())
-	}
-	return nil
-}
-
-func (ka *ecdheKeyAgreement) generateClientKeyExchange(config *Config, clientHello *clientHelloMsg, cert *x509.Certificate) ([]byte, *clientKeyExchangeMsg, error) {
-	if ka.ckx == nil {
-		return nil, nil, errors.New("tls: missing ServerKeyExchange message")
-	}
-
-	return ka.preMasterSecret, ka.ckx, nil
-}

transport/cloudflaretls/key_schedule.go

@@ -1,199 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package tls
-
-import (
-	"crypto/elliptic"
-	"crypto/hmac"
-	"errors"
-	"hash"
-	"io"
-	"math/big"
-
-	"golang.org/x/crypto/cryptobyte"
-	"golang.org/x/crypto/curve25519"
-	"golang.org/x/crypto/hkdf"
-)
-
-// This file contains the functions necessary to compute the TLS 1.3 key
-// schedule. See RFC 8446, Section 7.
-
-const (
-	resumptionBinderLabel         = "res binder"
-	clientHandshakeTrafficLabel   = "c hs traffic"
-	serverHandshakeTrafficLabel   = "s hs traffic"
-	clientApplicationTrafficLabel = "c ap traffic"
-	serverApplicationTrafficLabel = "s ap traffic"
-	exporterLabel                 = "exp master"
-	resumptionLabel               = "res master"
-	trafficUpdateLabel            = "traffic upd"
-)
-
-// expandLabel implements HKDF-Expand-Label from RFC 8446, Section 7.1.
-func (c *cipherSuiteTLS13) expandLabel(secret []byte, label string, context []byte, length int) []byte {
-	var hkdfLabel cryptobyte.Builder
-	hkdfLabel.AddUint16(uint16(length))
-	hkdfLabel.AddUint8LengthPrefixed(func(b *cryptobyte.Builder) {
-		b.AddBytes([]byte("tls13 "))
-		b.AddBytes([]byte(label))
-	})
-	hkdfLabel.AddUint8LengthPrefixed(func(b *cryptobyte.Builder) {
-		b.AddBytes(context)
-	})
-	out := make([]byte, length)
-	n, err := hkdf.Expand(c.hash.New, secret, hkdfLabel.BytesOrPanic()).Read(out)
-	if err != nil || n != length {
-		panic("tls: HKDF-Expand-Label invocation failed unexpectedly")
-	}
-	return out
-}
-
-// deriveSecret implements Derive-Secret from RFC 8446, Section 7.1.
-func (c *cipherSuiteTLS13) deriveSecret(secret []byte, label string, transcript hash.Hash) []byte {
-	if transcript == nil {
-		transcript = c.hash.New()
-	}
-	return c.expandLabel(secret, label, transcript.Sum(nil), c.hash.Size())
-}
-
-// extract implements HKDF-Extract with the cipher suite hash.
-func (c *cipherSuiteTLS13) extract(newSecret, currentSecret []byte) []byte {
-	if newSecret == nil {
-		newSecret = make([]byte, c.hash.Size())
-	}
-	return hkdf.Extract(c.hash.New, newSecret, currentSecret)
-}
-
-// nextTrafficSecret generates the next traffic secret, given the current one,
-// according to RFC 8446, Section 7.2.
-func (c *cipherSuiteTLS13) nextTrafficSecret(trafficSecret []byte) []byte {
-	return c.expandLabel(trafficSecret, trafficUpdateLabel, nil, c.hash.Size())
-}
-
-// trafficKey generates traffic keys according to RFC 8446, Section 7.3.
-func (c *cipherSuiteTLS13) trafficKey(trafficSecret []byte) (key, iv []byte) {
-	key = c.expandLabel(trafficSecret, "key", nil, c.keyLen)
-	iv = c.expandLabel(trafficSecret, "iv", nil, aeadNonceLength)
-	return
-}
-
-// finishedHash generates the Finished verify_data or PskBinderEntry according
-// to RFC 8446, Section 4.4.4. See sections 4.4 and 4.2.11.2 for the baseKey
-// selection.
-func (c *cipherSuiteTLS13) finishedHash(baseKey []byte, transcript hash.Hash) []byte {
-	finishedKey := c.expandLabel(baseKey, "finished", nil, c.hash.Size())
-	verifyData := hmac.New(c.hash.New, finishedKey)
-	verifyData.Write(transcript.Sum(nil))
-	return verifyData.Sum(nil)
-}
-
-// exportKeyingMaterial implements RFC5705 exporters for TLS 1.3 according to
-// RFC 8446, Section 7.5.
-func (c *cipherSuiteTLS13) exportKeyingMaterial(masterSecret []byte, transcript hash.Hash) func(string, []byte, int) ([]byte, error) {
-	expMasterSecret := c.deriveSecret(masterSecret, exporterLabel, transcript)
-	return func(label string, context []byte, length int) ([]byte, error) {
-		secret := c.deriveSecret(expMasterSecret, label, nil)
-		h := c.hash.New()
-		h.Write(context)
-		return c.expandLabel(secret, "exporter", h.Sum(nil), length), nil
-	}
-}
-
-// ecdheParameters implements Diffie-Hellman with either NIST curves or X25519,
-// according to RFC 8446, Section 4.2.8.2.
-type ecdheParameters interface {
-	CurveID() CurveID
-	PublicKey() []byte
-	SharedKey(peerPublicKey []byte) []byte
-}
-
-func generateECDHEParameters(rand io.Reader, curveID CurveID) (ecdheParameters, error) {
-	if curveID == X25519 {
-		privateKey := make([]byte, curve25519.ScalarSize)
-		if _, err := io.ReadFull(rand, privateKey); err != nil {
-			return nil, err
-		}
-		publicKey, err := curve25519.X25519(privateKey, curve25519.Basepoint)
-		if err != nil {
-			return nil, err
-		}
-		return &x25519Parameters{privateKey: privateKey, publicKey: publicKey}, nil
-	}
-
-	curve, ok := curveForCurveID(curveID)
-	if !ok {
-		return nil, errors.New("tls: internal error: unsupported curve")
-	}
-
-	p := &nistParameters{curveID: curveID}
-	var err error
-	p.privateKey, p.x, p.y, err = elliptic.GenerateKey(curve, rand)
-	if err != nil {
-		return nil, err
-	}
-	return p, nil
-}
-
-func curveForCurveID(id CurveID) (elliptic.Curve, bool) {
-	switch id {
-	case CurveP256:
-		return elliptic.P256(), true
-	case CurveP384:
-		return elliptic.P384(), true
-	case CurveP521:
-		return elliptic.P521(), true
-	default:
-		return nil, false
-	}
-}
-
-type nistParameters struct {
-	privateKey []byte
-	x, y       *big.Int // public key
-	curveID    CurveID
-}
-
-func (p *nistParameters) CurveID() CurveID {
-	return p.curveID
-}
-
-func (p *nistParameters) PublicKey() []byte {
-	curve, _ := curveForCurveID(p.curveID)
-	return elliptic.Marshal(curve, p.x, p.y)
-}
-
-func (p *nistParameters) SharedKey(peerPublicKey []byte) []byte {
-	curve, _ := curveForCurveID(p.curveID)
-	// Unmarshal also checks whether the given point is on the curve.
-	x, y := elliptic.Unmarshal(curve, peerPublicKey)
-	if x == nil {
-		return nil
-	}
-
-	xShared, _ := curve.ScalarMult(x, y, p.privateKey)
-	sharedKey := make([]byte, (curve.Params().BitSize+7)/8)
-	return xShared.FillBytes(sharedKey)
-}
-
-type x25519Parameters struct {
-	privateKey []byte
-	publicKey  []byte
-}
-
-func (p *x25519Parameters) CurveID() CurveID {
-	return X25519
-}
-
-func (p *x25519Parameters) PublicKey() []byte {
-	return p.publicKey[:]
-}
-
-func (p *x25519Parameters) SharedKey(peerPublicKey []byte) []byte {
-	sharedKey, err := curve25519.X25519(p.privateKey, peerPublicKey)
-	if err != nil {
-		return nil
-	}
-	return sharedKey
-}

transport/cloudflaretls/prf.go

@@ -1,285 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package tls
-
-import (
-	"crypto"
-	"crypto/hmac"
-	"crypto/md5"
-	"crypto/sha1"
-	"crypto/sha256"
-	"crypto/sha512"
-	"errors"
-	"fmt"
-	"hash"
-)
-
-// Split a premaster secret in two as specified in RFC 4346, Section 5.
-func splitPreMasterSecret(secret []byte) (s1, s2 []byte) {
-	s1 = secret[0 : (len(secret)+1)/2]
-	s2 = secret[len(secret)/2:]
-	return
-}
-
-// pHash implements the P_hash function, as defined in RFC 4346, Section 5.
-func pHash(result, secret, seed []byte, hash func() hash.Hash) {
-	h := hmac.New(hash, secret)
-	h.Write(seed)
-	a := h.Sum(nil)
-
-	j := 0
-	for j < len(result) {
-		h.Reset()
-		h.Write(a)
-		h.Write(seed)
-		b := h.Sum(nil)
-		copy(result[j:], b)
-		j += len(b)
-
-		h.Reset()
-		h.Write(a)
-		a = h.Sum(nil)
-	}
-}
-
-// prf10 implements the TLS 1.0 pseudo-random function, as defined in RFC 2246, Section 5.
-func prf10(result, secret, label, seed []byte) {
-	hashSHA1 := sha1.New
-	hashMD5 := md5.New
-
-	labelAndSeed := make([]byte, len(label)+len(seed))
-	copy(labelAndSeed, label)
-	copy(labelAndSeed[len(label):], seed)
-
-	s1, s2 := splitPreMasterSecret(secret)
-	pHash(result, s1, labelAndSeed, hashMD5)
-	result2 := make([]byte, len(result))
-	pHash(result2, s2, labelAndSeed, hashSHA1)
-
-	for i, b := range result2 {
-		result[i] ^= b
-	}
-}
-
-// prf12 implements the TLS 1.2 pseudo-random function, as defined in RFC 5246, Section 5.
-func prf12(hashFunc func() hash.Hash) func(result, secret, label, seed []byte) {
-	return func(result, secret, label, seed []byte) {
-		labelAndSeed := make([]byte, len(label)+len(seed))
-		copy(labelAndSeed, label)
-		copy(labelAndSeed[len(label):], seed)
-
-		pHash(result, secret, labelAndSeed, hashFunc)
-	}
-}
-
-const (
-	masterSecretLength   = 48 // Length of a master secret in TLS 1.1.
-	finishedVerifyLength = 12 // Length of verify_data in a Finished message.
-)
-
-var (
-	masterSecretLabel   = []byte("master secret")
-	keyExpansionLabel   = []byte("key expansion")
-	clientFinishedLabel = []byte("client finished")
-	serverFinishedLabel = []byte("server finished")
-)
-
-func prfAndHashForVersion(version uint16, suite *cipherSuite) (func(result, secret, label, seed []byte), crypto.Hash) {
-	switch version {
-	case VersionTLS10, VersionTLS11:
-		return prf10, crypto.Hash(0)
-	case VersionTLS12:
-		if suite.flags&suiteSHA384 != 0 {
-			return prf12(sha512.New384), crypto.SHA384
-		}
-		return prf12(sha256.New), crypto.SHA256
-	default:
-		panic("unknown version")
-	}
-}
-
-func prfForVersion(version uint16, suite *cipherSuite) func(result, secret, label, seed []byte) {
-	prf, _ := prfAndHashForVersion(version, suite)
-	return prf
-}
-
-// masterFromPreMasterSecret generates the master secret from the pre-master
-// secret. See RFC 5246, Section 8.1.
-func masterFromPreMasterSecret(version uint16, suite *cipherSuite, preMasterSecret, clientRandom, serverRandom []byte) []byte {
-	seed := make([]byte, 0, len(clientRandom)+len(serverRandom))
-	seed = append(seed, clientRandom...)
-	seed = append(seed, serverRandom...)
-
-	masterSecret := make([]byte, masterSecretLength)
-	prfForVersion(version, suite)(masterSecret, preMasterSecret, masterSecretLabel, seed)
-	return masterSecret
-}
-
-// keysFromMasterSecret generates the connection keys from the master
-// secret, given the lengths of the MAC key, cipher key and IV, as defined in
-// RFC 2246, Section 6.3.
-func keysFromMasterSecret(version uint16, suite *cipherSuite, masterSecret, clientRandom, serverRandom []byte, macLen, keyLen, ivLen int) (clientMAC, serverMAC, clientKey, serverKey, clientIV, serverIV []byte) {
-	seed := make([]byte, 0, len(serverRandom)+len(clientRandom))
-	seed = append(seed, serverRandom...)
-	seed = append(seed, clientRandom...)
-
-	n := 2*macLen + 2*keyLen + 2*ivLen
-	keyMaterial := make([]byte, n)
-	prfForVersion(version, suite)(keyMaterial, masterSecret, keyExpansionLabel, seed)
-	clientMAC = keyMaterial[:macLen]
-	keyMaterial = keyMaterial[macLen:]
-	serverMAC = keyMaterial[:macLen]
-	keyMaterial = keyMaterial[macLen:]
-	clientKey = keyMaterial[:keyLen]
-	keyMaterial = keyMaterial[keyLen:]
-	serverKey = keyMaterial[:keyLen]
-	keyMaterial = keyMaterial[keyLen:]
-	clientIV = keyMaterial[:ivLen]
-	keyMaterial = keyMaterial[ivLen:]
-	serverIV = keyMaterial[:ivLen]
-	return
-}
-
-func newFinishedHash(version uint16, cipherSuite *cipherSuite) finishedHash {
-	var buffer []byte
-	if version >= VersionTLS12 {
-		buffer = []byte{}
-	}
-
-	prf, hash := prfAndHashForVersion(version, cipherSuite)
-	if hash != 0 {
-		return finishedHash{hash.New(), hash.New(), nil, nil, buffer, version, prf}
-	}
-
-	return finishedHash{sha1.New(), sha1.New(), md5.New(), md5.New(), buffer, version, prf}
-}
-
-// A finishedHash calculates the hash of a set of handshake messages suitable
-// for including in a Finished message.
-type finishedHash struct {
-	client hash.Hash
-	server hash.Hash
-
-	// Prior to TLS 1.2, an additional MD5 hash is required.
-	clientMD5 hash.Hash
-	serverMD5 hash.Hash
-
-	// In TLS 1.2, a full buffer is sadly required.
-	buffer []byte
-
-	version uint16
-	prf     func(result, secret, label, seed []byte)
-}
-
-func (h *finishedHash) Write(msg []byte) (n int, err error) {
-	h.client.Write(msg)
-	h.server.Write(msg)
-
-	if h.version < VersionTLS12 {
-		h.clientMD5.Write(msg)
-		h.serverMD5.Write(msg)
-	}
-
-	if h.buffer != nil {
-		h.buffer = append(h.buffer, msg...)
-	}
-
-	return len(msg), nil
-}
-
-func (h finishedHash) Sum() []byte {
-	if h.version >= VersionTLS12 {
-		return h.client.Sum(nil)
-	}
-
-	out := make([]byte, 0, md5.Size+sha1.Size)
-	out = h.clientMD5.Sum(out)
-	return h.client.Sum(out)
-}
-
-// clientSum returns the contents of the verify_data member of a client's
-// Finished message.
-func (h finishedHash) clientSum(masterSecret []byte) []byte {
-	out := make([]byte, finishedVerifyLength)
-	h.prf(out, masterSecret, clientFinishedLabel, h.Sum())
-	return out
-}
-
-// serverSum returns the contents of the verify_data member of a server's
-// Finished message.
-func (h finishedHash) serverSum(masterSecret []byte) []byte {
-	out := make([]byte, finishedVerifyLength)
-	h.prf(out, masterSecret, serverFinishedLabel, h.Sum())
-	return out
-}
-
-// hashForClientCertificate returns the handshake messages so far, pre-hashed if
-// necessary, suitable for signing by a TLS client certificate.
-func (h finishedHash) hashForClientCertificate(sigType uint8, hashAlg crypto.Hash, masterSecret []byte) []byte {
-	if (h.version >= VersionTLS12 || sigType == signatureEd25519 || circlSchemeBySigType(sigType) != nil) && h.buffer == nil {
-		panic("tls: handshake hash for a client certificate requested after discarding the handshake buffer")
-	}
-
-	if sigType == signatureEd25519 || circlSchemeBySigType(sigType) != nil {
-		return h.buffer
-	}
-
-	if h.version >= VersionTLS12 {
-		hash := hashAlg.New()
-		hash.Write(h.buffer)
-		return hash.Sum(nil)
-	}
-
-	if sigType == signatureECDSA {
-		return h.server.Sum(nil)
-	}
-
-	return h.Sum()
-}
-
-// discardHandshakeBuffer is called when there is no more need to
-// buffer the entirety of the handshake messages.
-func (h *finishedHash) discardHandshakeBuffer() {
-	h.buffer = nil
-}
-
-// noExportedKeyingMaterial is used as a value of
-// ConnectionState.ekm when renegotiation is enabled and thus
-// we wish to fail all key-material export requests.
-func noExportedKeyingMaterial(label string, context []byte, length int) ([]byte, error) {
-	return nil, errors.New("crypto/tls: ExportKeyingMaterial is unavailable when renegotiation is enabled")
-}
-
-// ekmFromMasterSecret generates exported keying material as defined in RFC 5705.
-func ekmFromMasterSecret(version uint16, suite *cipherSuite, masterSecret, clientRandom, serverRandom []byte) func(string, []byte, int) ([]byte, error) {
-	return func(label string, context []byte, length int) ([]byte, error) {
-		switch label {
-		case "client finished", "server finished", "master secret", "key expansion":
-			// These values are reserved and may not be used.
-			return nil, fmt.Errorf("crypto/tls: reserved ExportKeyingMaterial label: %s", label)
-		}
-
-		seedLen := len(serverRandom) + len(clientRandom)
-		if context != nil {
-			seedLen += 2 + len(context)
-		}
-		seed := make([]byte, 0, seedLen)
-
-		seed = append(seed, clientRandom...)
-		seed = append(seed, serverRandom...)
-
-		if context != nil {
-			if len(context) >= 1<<16 {
-				return nil, fmt.Errorf("crypto/tls: ExportKeyingMaterial context too long")
-			}
-			seed = append(seed, byte(len(context)>>8), byte(len(context)))
-			seed = append(seed, context...)
-		}
-
-		keyMaterial := make([]byte, length)
-		prfForVersion(version, suite)(keyMaterial, masterSecret, []byte(label), seed)
-		return keyMaterial, nil
-	}
-}

transport/cloudflaretls/ticket.go

@@ -1,185 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package tls
-
-import (
-	"bytes"
-	"crypto/aes"
-	"crypto/cipher"
-	"crypto/hmac"
-	"crypto/sha256"
-	"crypto/subtle"
-	"errors"
-	"io"
-
-	"golang.org/x/crypto/cryptobyte"
-)
-
-// sessionState contains the information that is serialized into a session
-// ticket in order to later resume a connection.
-type sessionState struct {
-	vers         uint16
-	cipherSuite  uint16
-	createdAt    uint64
-	masterSecret []byte // opaque master_secret<1..2^16-1>;
-	// struct { opaque certificate<1..2^24-1> } Certificate;
-	certificates [][]byte // Certificate certificate_list<0..2^24-1>;
-
-	// usedOldKey is true if the ticket from which this session came from
-	// was encrypted with an older key and thus should be refreshed.
-	usedOldKey bool
-}
-
-func (m *sessionState) marshal() []byte {
-	var b cryptobyte.Builder
-	b.AddUint16(m.vers)
-	b.AddUint16(m.cipherSuite)
-	addUint64(&b, m.createdAt)
-	b.AddUint16LengthPrefixed(func(b *cryptobyte.Builder) {
-		b.AddBytes(m.masterSecret)
-	})
-	b.AddUint24LengthPrefixed(func(b *cryptobyte.Builder) {
-		for _, cert := range m.certificates {
-			b.AddUint24LengthPrefixed(func(b *cryptobyte.Builder) {
-				b.AddBytes(cert)
-			})
-		}
-	})
-	return b.BytesOrPanic()
-}
-
-func (m *sessionState) unmarshal(data []byte) bool {
-	*m = sessionState{usedOldKey: m.usedOldKey}
-	s := cryptobyte.String(data)
-	if ok := s.ReadUint16(&m.vers) &&
-		s.ReadUint16(&m.cipherSuite) &&
-		readUint64(&s, &m.createdAt) &&
-		readUint16LengthPrefixed(&s, &m.masterSecret) &&
-		len(m.masterSecret) != 0; !ok {
-		return false
-	}
-	var certList cryptobyte.String
-	if !s.ReadUint24LengthPrefixed(&certList) {
-		return false
-	}
-	for !certList.Empty() {
-		var cert []byte
-		if !readUint24LengthPrefixed(&certList, &cert) {
-			return false
-		}
-		m.certificates = append(m.certificates, cert)
-	}
-	return s.Empty()
-}
-
-// sessionStateTLS13 is the content of a TLS 1.3 session ticket. Its first
-// version (revision = 0) doesn't carry any of the information needed for 0-RTT
-// validation and the nonce is always empty.
-type sessionStateTLS13 struct {
-	// uint8 version  = 0x0304;
-	// uint8 revision = 0;
-	cipherSuite      uint16
-	createdAt        uint64
-	resumptionSecret []byte      // opaque resumption_master_secret<1..2^8-1>;
-	certificate      Certificate // CertificateEntry certificate_list<0..2^24-1>;
-}
-
-func (m *sessionStateTLS13) marshal() []byte {
-	var b cryptobyte.Builder
-	b.AddUint16(VersionTLS13)
-	b.AddUint8(0) // revision
-	b.AddUint16(m.cipherSuite)
-	addUint64(&b, m.createdAt)
-	b.AddUint8LengthPrefixed(func(b *cryptobyte.Builder) {
-		b.AddBytes(m.resumptionSecret)
-	})
-	marshalCertificate(&b, m.certificate)
-	return b.BytesOrPanic()
-}
-
-func (m *sessionStateTLS13) unmarshal(data []byte) bool {
-	*m = sessionStateTLS13{}
-	s := cryptobyte.String(data)
-	var version uint16
-	var revision uint8
-	return s.ReadUint16(&version) &&
-		version == VersionTLS13 &&
-		s.ReadUint8(&revision) &&
-		revision == 0 &&
-		s.ReadUint16(&m.cipherSuite) &&
-		readUint64(&s, &m.createdAt) &&
-		readUint8LengthPrefixed(&s, &m.resumptionSecret) &&
-		len(m.resumptionSecret) != 0 &&
-		unmarshalCertificate(&s, &m.certificate) &&
-		s.Empty()
-}
-
-func (c *Conn) encryptTicket(state []byte) ([]byte, error) {
-	if len(c.ticketKeys) == 0 {
-		return nil, errors.New("tls: internal error: session ticket keys unavailable")
-	}
-
-	encrypted := make([]byte, ticketKeyNameLen+aes.BlockSize+len(state)+sha256.Size)
-	keyName := encrypted[:ticketKeyNameLen]
-	iv := encrypted[ticketKeyNameLen : ticketKeyNameLen+aes.BlockSize]
-	macBytes := encrypted[len(encrypted)-sha256.Size:]
-
-	if _, err := io.ReadFull(c.config.rand(), iv); err != nil {
-		return nil, err
-	}
-	key := c.ticketKeys[0]
-	copy(keyName, key.keyName[:])
-	block, err := aes.NewCipher(key.aesKey[:])
-	if err != nil {
-		return nil, errors.New("tls: failed to create cipher while encrypting ticket: " + err.Error())
-	}
-	cipher.NewCTR(block, iv).XORKeyStream(encrypted[ticketKeyNameLen+aes.BlockSize:], state)
-
-	mac := hmac.New(sha256.New, key.hmacKey[:])
-	mac.Write(encrypted[:len(encrypted)-sha256.Size])
-	mac.Sum(macBytes[:0])
-
-	return encrypted, nil
-}
-
-func (c *Conn) decryptTicket(encrypted []byte) (plaintext []byte, usedOldKey bool) {
-	if len(encrypted) < ticketKeyNameLen+aes.BlockSize+sha256.Size {
-		return nil, false
-	}
-
-	keyName := encrypted[:ticketKeyNameLen]
-	iv := encrypted[ticketKeyNameLen : ticketKeyNameLen+aes.BlockSize]
-	macBytes := encrypted[len(encrypted)-sha256.Size:]
-	ciphertext := encrypted[ticketKeyNameLen+aes.BlockSize : len(encrypted)-sha256.Size]
-
-	keyIndex := -1
-	for i, candidateKey := range c.ticketKeys {
-		if bytes.Equal(keyName, candidateKey.keyName[:]) {
-			keyIndex = i
-			break
-		}
-	}
-	if keyIndex == -1 {
-		return nil, false
-	}
-	key := &c.ticketKeys[keyIndex]
-
-	mac := hmac.New(sha256.New, key.hmacKey[:])
-	mac.Write(encrypted[:len(encrypted)-sha256.Size])
-	expected := mac.Sum(nil)
-
-	if subtle.ConstantTimeCompare(macBytes, expected) != 1 {
-		return nil, false
-	}
-
-	block, err := aes.NewCipher(key.aesKey[:])
-	if err != nil {
-		return nil, false
-	}
-	plaintext = make([]byte, len(ciphertext))
-	cipher.NewCTR(block, iv).XORKeyStream(plaintext, ciphertext)
-
-	return plaintext, keyIndex > 0
-}

transport/cloudflaretls/tls.go

@@ -1,410 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package tls partially implements TLS 1.2, as specified in RFC 5246,
-// and TLS 1.3, as specified in RFC 8446.
-//
-// This package implements the "Encrypted ClientHello (ECH)" extension, as
-// specified by draft-ietf-tls-esni-13. This extension allows the client to
-// encrypt its ClientHello to the public key of an ECH-service provider, known
-// as the client-facing server. If successful, then the client-facing server
-// forwards the decrypted ClientHello to the intended recipient, known as the
-// backend server. The goal of this mechanism is to ensure that connections made
-// to backend servers are indistinguishable from one another.
-//
-// This package implements the "Delegated Credentials" extension, as
-// specified by draft-ietf-tls-subcerts-10. This extension allows the usage
-// of a limited delegation mechanism that allows a TLS peer to issue its own
-// credentials within the scope of a certificate issued by an external
-// CA. These credentials only enable the recipient of the delegation to
-// speak for names that the CA has authorized. If the client or server supports
-// this extension, then the server or client may use a "delegated credential"
-// as the signing key in the handshake. A delegated credential is a short lived
-// public/secret key pair delegated to the peer by an entity trusted by the
-// corresponding peer. This allows a reverse proxy to terminate a TLS connection
-// on behalf of the entity. Credentials can't be revoked; in order to
-// mitigate risk in case the reverse proxy is compromised, the credential is only
-// valid for a short time (days, hours, or even minutes).
-package tls
-
-// BUG(cjpatton): In order to achieve its security goal, the ECH extension
-// requires padding in order to ensure that the length of handshake messages
-// doesn't depend on who terminates the connection. This package does not yet
-// implement server-side padding: see
-// https://github.com/tlswg/draft-ietf-tls-esni/issues/264.
-
-// BUG(cjpatton): The interaction of the ECH extension with PSK has not yet been
-// fully vetted. For now, the server disables session tickets if ECH is enabled.
-
-// BUG(cjpatton): Upon ECH rejection, if retry configurations are provided, then
-// the client is expected to retry the connection. Otherwise, it may regard ECH
-// as being securely disabled by the client-facing server. The client in this
-// package does not attempt to retry the handshake.
-
-// BUG(cjpatton): If the client offers the ECH extension and the client-facing
-// server rejects it, then only the client-facing server is authenticated. In
-// particular, the client is expected to respond to a CertificateRequest with an
-// empty certificate. This package does not yet implement this behavior.
-
-// BUG(agl): The crypto/tls package only implements some countermeasures
-// against Lucky13 attacks on CBC-mode encryption, and only on SHA1
-// variants. See http://www.isg.rhul.ac.uk/tls/TLStiming.pdf and
-// https://www.imperialviolet.org/2013/02/04/luckythirteen.html.
-
-import (
-	"bytes"
-	"context"
-	"crypto"
-	"crypto/ecdsa"
-	"crypto/ed25519"
-	"crypto/rsa"
-	"crypto/x509"
-	"encoding/pem"
-	"errors"
-	"fmt"
-	"net"
-	"os"
-	"strings"
-
-	circlSign "github.com/cloudflare/circl/sign"
-)
-
-// Server returns a new TLS server side connection
-// using conn as the underlying transport.
-// The configuration config must be non-nil and must include
-// at least one certificate or else set GetCertificate.
-func Server(conn net.Conn, config *Config) *Conn {
-	c := &Conn{
-		conn:   conn,
-		config: config,
-	}
-	c.handshakeFn = c.serverHandshake
-	return c
-}
-
-// Client returns a new TLS client side connection
-// using conn as the underlying transport.
-// The config cannot be nil: users must set either ServerName or
-// InsecureSkipVerify in the config.
-func Client(conn net.Conn, config *Config) *Conn {
-	c := &Conn{
-		conn:     conn,
-		config:   config,
-		isClient: true,
-	}
-	c.handshakeFn = c.clientHandshake
-	return c
-}
-
-// A listener implements a network listener (net.Listener) for TLS connections.
-type listener struct {
-	net.Listener
-	config *Config
-}
-
-// Accept waits for and returns the next incoming TLS connection.
-// The returned connection is of type *Conn.
-func (l *listener) Accept() (net.Conn, error) {
-	c, err := l.Listener.Accept()
-	if err != nil {
-		return nil, err
-	}
-	return Server(c, l.config), nil
-}
-
-// NewListener creates a Listener which accepts connections from an inner
-// Listener and wraps each connection with Server.
-// The configuration config must be non-nil and must include
-// at least one certificate or else set GetCertificate.
-func NewListener(inner net.Listener, config *Config) net.Listener {
-	l := new(listener)
-	l.Listener = inner
-	l.config = config
-	return l
-}
-
-// Listen creates a TLS listener accepting connections on the
-// given network address using net.Listen.
-// The configuration config must be non-nil and must include
-// at least one certificate or else set GetCertificate.
-func Listen(network, laddr string, config *Config) (net.Listener, error) {
-	if config == nil || len(config.Certificates) == 0 &&
-		config.GetCertificate == nil && config.GetConfigForClient == nil {
-		return nil, errors.New("tls: neither Certificates, GetCertificate, nor GetConfigForClient set in Config")
-	}
-	l, err := net.Listen(network, laddr)
-	if err != nil {
-		return nil, err
-	}
-	return NewListener(l, config), nil
-}
-
-type timeoutError struct{}
-
-func (timeoutError) Error() string   { return "tls: DialWithDialer timed out" }
-func (timeoutError) Timeout() bool   { return true }
-func (timeoutError) Temporary() bool { return true }
-
-// DialWithDialer connects to the given network address using dialer.Dial and
-// then initiates a TLS handshake, returning the resulting TLS connection. Any
-// timeout or deadline given in the dialer apply to connection and TLS
-// handshake as a whole.
-//
-// DialWithDialer interprets a nil configuration as equivalent to the zero
-// configuration; see the documentation of Config for the defaults.
-//
-// DialWithDialer uses context.Background internally; to specify the context,
-// use Dialer.DialContext with NetDialer set to the desired dialer.
-func DialWithDialer(dialer *net.Dialer, network, addr string, config *Config) (*Conn, error) {
-	return dial(context.Background(), dialer, network, addr, config)
-}
-
-func dial(ctx context.Context, netDialer *net.Dialer, network, addr string, config *Config) (*Conn, error) {
-	if netDialer.Timeout != 0 {
-		var cancel context.CancelFunc
-		ctx, cancel = context.WithTimeout(ctx, netDialer.Timeout)
-		defer cancel()
-	}
-
-	if !netDialer.Deadline.IsZero() {
-		var cancel context.CancelFunc
-		ctx, cancel = context.WithDeadline(ctx, netDialer.Deadline)
-		defer cancel()
-	}
-
-	rawConn, err := netDialer.DialContext(ctx, network, addr)
-	if err != nil {
-		return nil, err
-	}
-
-	colonPos := strings.LastIndex(addr, ":")
-	if colonPos == -1 {
-		colonPos = len(addr)
-	}
-	hostname := addr[:colonPos]
-
-	if config == nil {
-		config = defaultConfig()
-	}
-	// If no ServerName is set, infer the ServerName
-	// from the hostname we're connecting to.
-	if config.ServerName == "" {
-		// Make a copy to avoid polluting argument or default.
-		c := config.Clone()
-		c.ServerName = hostname
-		config = c
-	}
-
-	conn := Client(rawConn, config)
-	if err := conn.HandshakeContext(ctx); err != nil {
-		rawConn.Close()
-		return nil, err
-	}
-	return conn, nil
-}
-
-// Dial connects to the given network address using net.Dial
-// and then initiates a TLS handshake, returning the resulting
-// TLS connection.
-// Dial interprets a nil configuration as equivalent to
-// the zero configuration; see the documentation of Config
-// for the defaults.
-func Dial(network, addr string, config *Config) (*Conn, error) {
-	return DialWithDialer(new(net.Dialer), network, addr, config)
-}
-
-// Dialer dials TLS connections given a configuration and a Dialer for the
-// underlying connection.
-type Dialer struct {
-	// NetDialer is the optional dialer to use for the TLS connections'
-	// underlying TCP connections.
-	// A nil NetDialer is equivalent to the net.Dialer zero value.
-	NetDialer *net.Dialer
-
-	// Config is the TLS configuration to use for new connections.
-	// A nil configuration is equivalent to the zero
-	// configuration; see the documentation of Config for the
-	// defaults.
-	Config *Config
-}
-
-// Dial connects to the given network address and initiates a TLS
-// handshake, returning the resulting TLS connection.
-//
-// The returned Conn, if any, will always be of type *Conn.
-//
-// Dial uses context.Background internally; to specify the context,
-// use DialContext.
-func (d *Dialer) Dial(network, addr string) (net.Conn, error) {
-	return d.DialContext(context.Background(), network, addr)
-}
-
-func (d *Dialer) netDialer() *net.Dialer {
-	if d.NetDialer != nil {
-		return d.NetDialer
-	}
-	return new(net.Dialer)
-}
-
-// DialContext connects to the given network address and initiates a TLS
-// handshake, returning the resulting TLS connection.
-//
-// The provided Context must be non-nil. If the context expires before
-// the connection is complete, an error is returned. Once successfully
-// connected, any expiration of the context will not affect the
-// connection.
-//
-// The returned Conn, if any, will always be of type *Conn.
-func (d *Dialer) DialContext(ctx context.Context, network, addr string) (net.Conn, error) {
-	c, err := dial(ctx, d.netDialer(), network, addr, d.Config)
-	if err != nil {
-		// Don't return c (a typed nil) in an interface.
-		return nil, err
-	}
-	return c, nil
-}
-
-// LoadX509KeyPair reads and parses a public/private key pair from a pair
-// of files. The files must contain PEM encoded data. The certificate file
-// may contain intermediate certificates following the leaf certificate to
-// form a certificate chain. On successful return, Certificate.Leaf will
-// be nil because the parsed form of the certificate is not retained.
-func LoadX509KeyPair(certFile, keyFile string) (Certificate, error) {
-	certPEMBlock, err := os.ReadFile(certFile)
-	if err != nil {
-		return Certificate{}, err
-	}
-	keyPEMBlock, err := os.ReadFile(keyFile)
-	if err != nil {
-		return Certificate{}, err
-	}
-	return X509KeyPair(certPEMBlock, keyPEMBlock)
-}
-
-// X509KeyPair parses a public/private key pair from a pair of
-// PEM encoded data. On successful return, Certificate.Leaf will be nil because
-// the parsed form of the certificate is not retained.
-func X509KeyPair(certPEMBlock, keyPEMBlock []byte) (Certificate, error) {
-	fail := func(err error) (Certificate, error) { return Certificate{}, err }
-
-	var cert Certificate
-	var skippedBlockTypes []string
-	for {
-		var certDERBlock *pem.Block
-		certDERBlock, certPEMBlock = pem.Decode(certPEMBlock)
-		if certDERBlock == nil {
-			break
-		}
-		if certDERBlock.Type == "CERTIFICATE" {
-			cert.Certificate = append(cert.Certificate, certDERBlock.Bytes)
-		} else {
-			skippedBlockTypes = append(skippedBlockTypes, certDERBlock.Type)
-		}
-	}
-
-	if len(cert.Certificate) == 0 {
-		if len(skippedBlockTypes) == 0 {
-			return fail(errors.New("tls: failed to find any PEM data in certificate input"))
-		}
-		if len(skippedBlockTypes) == 1 && strings.HasSuffix(skippedBlockTypes[0], "PRIVATE KEY") {
-			return fail(errors.New("tls: failed to find certificate PEM data in certificate input, but did find a private key; PEM inputs may have been switched"))
-		}
-		return fail(fmt.Errorf("tls: failed to find \"CERTIFICATE\" PEM block in certificate input after skipping PEM blocks of the following types: %v", skippedBlockTypes))
-	}
-
-	skippedBlockTypes = skippedBlockTypes[:0]
-	var keyDERBlock *pem.Block
-	for {
-		keyDERBlock, keyPEMBlock = pem.Decode(keyPEMBlock)
-		if keyDERBlock == nil {
-			if len(skippedBlockTypes) == 0 {
-				return fail(errors.New("tls: failed to find any PEM data in key input"))
-			}
-			if len(skippedBlockTypes) == 1 && skippedBlockTypes[0] == "CERTIFICATE" {
-				return fail(errors.New("tls: found a certificate rather than a key in the PEM for the private key"))
-			}
-			return fail(fmt.Errorf("tls: failed to find PEM block with type ending in \"PRIVATE KEY\" in key input after skipping PEM blocks of the following types: %v", skippedBlockTypes))
-		}
-		if keyDERBlock.Type == "PRIVATE KEY" || strings.HasSuffix(keyDERBlock.Type, " PRIVATE KEY") {
-			break
-		}
-		skippedBlockTypes = append(skippedBlockTypes, keyDERBlock.Type)
-	}
-
-	// We don't need to parse the public key for TLS, but we so do anyway
-	// to check that it looks sane and matches the private key.
-	x509Cert, err := x509.ParseCertificate(cert.Certificate[0])
-	if err != nil {
-		return fail(err)
-	}
-
-	cert.PrivateKey, err = parsePrivateKey(keyDERBlock.Bytes)
-	if err != nil {
-		return fail(err)
-	}
-
-	switch pub := x509Cert.PublicKey.(type) {
-	case *rsa.PublicKey:
-		priv, ok := cert.PrivateKey.(*rsa.PrivateKey)
-		if !ok {
-			return fail(errors.New("tls: private key type does not match public key type"))
-		}
-		if pub.N.Cmp(priv.N) != 0 {
-			return fail(errors.New("tls: private key does not match public key"))
-		}
-	case *ecdsa.PublicKey:
-		priv, ok := cert.PrivateKey.(*ecdsa.PrivateKey)
-		if !ok {
-			return fail(errors.New("tls: private key type does not match public key type"))
-		}
-		if pub.X.Cmp(priv.X) != 0 || pub.Y.Cmp(priv.Y) != 0 {
-			return fail(errors.New("tls: private key does not match public key"))
-		}
-	case ed25519.PublicKey:
-		priv, ok := cert.PrivateKey.(ed25519.PrivateKey)
-		if !ok {
-			return fail(errors.New("tls: private key type does not match public key type"))
-		}
-		if !bytes.Equal(priv.Public().(ed25519.PublicKey), pub) {
-			return fail(errors.New("tls: private key does not match public key"))
-		}
-	case circlSign.PublicKey:
-		priv, ok := cert.PrivateKey.(circlSign.PrivateKey)
-		if !ok {
-			return fail(errors.New("tls: private key type does not match public key type"))
-		}
-		pkBytes, err := priv.Public().(circlSign.PublicKey).MarshalBinary()
-		pkBytes2, err2 := pub.MarshalBinary()
-
-		if err != nil || err2 != nil || !bytes.Equal(pkBytes, pkBytes2) {
-			return fail(errors.New("tls: private key does not match public key"))
-		}
-	default:
-		return fail(errors.New("tls: unknown public key algorithm"))
-	}
-
-	return cert, nil
-}
-
-// Attempt to parse the given private key DER block. OpenSSL 0.9.8 generates
-// PKCS #1 private keys by default, while OpenSSL 1.0.0 generates PKCS #8 keys.
-// OpenSSL ecparam generates SEC1 EC private keys for ECDSA. We try all three.
-func parsePrivateKey(der []byte) (crypto.PrivateKey, error) {
-	if key, err := x509.ParsePKCS1PrivateKey(der); err == nil {
-		return key, nil
-	}
-	if key, err := x509.ParsePKCS8PrivateKey(der); err == nil {
-		switch key := key.(type) {
-		case *rsa.PrivateKey, *ecdsa.PrivateKey, ed25519.PrivateKey, circlSign.PrivateKey:
-			return key, nil
-		default:
-			return nil, errors.New("tls: found unknown private key type in PKCS#8 wrapping")
-		}
-	}
-	if key, err := x509.ParseECPrivateKey(der); err == nil {
-		return key, nil
-	}
-
-	return nil, errors.New("tls: failed to parse private key")
-}

transport/cloudflaretls/tls_cf.go

@@ -1,241 +0,0 @@
-// Copyright 2021 Cloudflare, Inc. All rights reserved. Use of this source code
-// is governed by a BSD-style license that can be found in the LICENSE file.
-
-package tls
-
-import (
-	"time"
-
-	circlPki "github.com/cloudflare/circl/pki"
-	circlSign "github.com/cloudflare/circl/sign"
-	"github.com/cloudflare/circl/sign/eddilithium3"
-)
-
-const (
-	// Constants for ECH status events.
-	echStatusBypassed = 1 + iota
-	echStatusInner
-	echStatusOuter
-)
-
-// To add a signature scheme from Circl
-//
-//   1. make sure it implements TLSScheme and CertificateScheme,
-//   2. follow the instructions in crypto/x509/x509_cf.go
-//   3. add a signature<NameOfAlg> to the iota in common.go
-//   4. add row in the circlSchemes lists below
-
-var circlSchemes = [...]struct {
-	sigType uint8
-	scheme  circlSign.Scheme
-}{
-	{signatureEdDilithium3, eddilithium3.Scheme()},
-}
-
-func circlSchemeBySigType(sigType uint8) circlSign.Scheme {
-	for _, cs := range circlSchemes {
-		if cs.sigType == sigType {
-			return cs.scheme
-		}
-	}
-	return nil
-}
-
-func sigTypeByCirclScheme(scheme circlSign.Scheme) uint8 {
-	for _, cs := range circlSchemes {
-		if cs.scheme == scheme {
-			return cs.sigType
-		}
-	}
-	return 0
-}
-
-var supportedSignatureAlgorithmsWithCircl []SignatureScheme
-
-// supportedSignatureAlgorithms returns enabled signature schemes. PQ signature
-// schemes are only included when tls.Config#PQSignatureSchemesEnabled is set.
-func (c *Config) supportedSignatureAlgorithms() []SignatureScheme {
-	if c != nil && c.PQSignatureSchemesEnabled {
-		return supportedSignatureAlgorithmsWithCircl
-	}
-	return supportedSignatureAlgorithms
-}
-
-func init() {
-	supportedSignatureAlgorithmsWithCircl = append([]SignatureScheme{}, supportedSignatureAlgorithms...)
-	for _, cs := range circlSchemes {
-		supportedSignatureAlgorithmsWithCircl = append(supportedSignatureAlgorithmsWithCircl,
-			SignatureScheme(cs.scheme.(circlPki.TLSScheme).TLSIdentifier()))
-	}
-}
-
-// CFEvent is a value emitted at various points in the handshake that is
-// handled by the callback Config.CFEventHandler.
-type CFEvent interface {
-	Name() string
-}
-
-// CFEventTLS13ClientHandshakeTimingInfo carries intra-stack time durations for
-// TLS 1.3 client-state machine changes. It can be used for tracking metrics
-// during a connection. Some durations may be sensitive, such as the amount of
-// time to process a particular handshake message, so this event should only be
-// used for experimental purposes.
-type CFEventTLS13ClientHandshakeTimingInfo struct {
-	timer                   func() time.Time
-	start                   time.Time
-	WriteClientHello        time.Duration
-	ProcessServerHello      time.Duration
-	ReadEncryptedExtensions time.Duration
-	ReadCertificate         time.Duration
-	ReadCertificateVerify   time.Duration
-	ReadServerFinished      time.Duration
-	WriteCertificate        time.Duration
-	WriteCertificateVerify  time.Duration
-	WriteClientFinished     time.Duration
-}
-
-// Name is required by the CFEvent interface.
-func (e CFEventTLS13ClientHandshakeTimingInfo) Name() string {
-	return "TLS13ClientHandshakeTimingInfo"
-}
-
-func (e CFEventTLS13ClientHandshakeTimingInfo) elapsedTime() time.Duration {
-	if e.timer == nil {
-		return 0
-	}
-	return e.timer().Sub(e.start)
-}
-
-func createTLS13ClientHandshakeTimingInfo(timerFunc func() time.Time) CFEventTLS13ClientHandshakeTimingInfo {
-	timer := time.Now
-	if timerFunc != nil {
-		timer = timerFunc
-	}
-
-	return CFEventTLS13ClientHandshakeTimingInfo{
-		timer: timer,
-		start: timer(),
-	}
-}
-
-// CFEventTLS13ServerHandshakeTimingInfo carries intra-stack time durations
-// for TLS 1.3 state machine changes. It can be used for tracking metrics during a
-// connection. Some durations may be sensitive, such as the amount of time to
-// process a particular handshake message, so this event should only be used
-// for experimental purposes.
-type CFEventTLS13ServerHandshakeTimingInfo struct {
-	timer                    func() time.Time
-	start                    time.Time
-	ProcessClientHello       time.Duration
-	WriteServerHello         time.Duration
-	WriteEncryptedExtensions time.Duration
-	WriteCertificate         time.Duration
-	WriteCertificateVerify   time.Duration
-	WriteServerFinished      time.Duration
-	ReadCertificate          time.Duration
-	ReadCertificateVerify    time.Duration
-	ReadClientFinished       time.Duration
-}
-
-// Name is required by the CFEvent interface.
-func (e CFEventTLS13ServerHandshakeTimingInfo) Name() string {
-	return "TLS13ServerHandshakeTimingInfo"
-}
-
-func (e CFEventTLS13ServerHandshakeTimingInfo) elapsedTime() time.Duration {
-	if e.timer == nil {
-		return 0
-	}
-	return e.timer().Sub(e.start)
-}
-
-func createTLS13ServerHandshakeTimingInfo(timerFunc func() time.Time) CFEventTLS13ServerHandshakeTimingInfo {
-	timer := time.Now
-	if timerFunc != nil {
-		timer = timerFunc
-	}
-
-	return CFEventTLS13ServerHandshakeTimingInfo{
-		timer: timer,
-		start: timer(),
-	}
-}
-
-// CFEventECHClientStatus is emitted once it is known whether the client
-// bypassed, offered, or greased ECH.
-type CFEventECHClientStatus int
-
-// Bypassed returns true if the client bypassed ECH.
-func (e CFEventECHClientStatus) Bypassed() bool {
-	return e == echStatusBypassed
-}
-
-// Offered returns true if the client offered ECH.
-func (e CFEventECHClientStatus) Offered() bool {
-	return e == echStatusInner
-}
-
-// Greased returns true if the client greased ECH.
-func (e CFEventECHClientStatus) Greased() bool {
-	return e == echStatusOuter
-}
-
-// Name is required by the CFEvent interface.
-func (e CFEventECHClientStatus) Name() string {
-	return "ech client status"
-}
-
-// CFEventECHServerStatus is emitted once it is known whether the client
-// bypassed, offered, or greased ECH.
-type CFEventECHServerStatus int
-
-// Bypassed returns true if the client bypassed ECH.
-func (e CFEventECHServerStatus) Bypassed() bool {
-	return e == echStatusBypassed
-}
-
-// Accepted returns true if the client offered ECH.
-func (e CFEventECHServerStatus) Accepted() bool {
-	return e == echStatusInner
-}
-
-// Rejected returns true if the client greased ECH.
-func (e CFEventECHServerStatus) Rejected() bool {
-	return e == echStatusOuter
-}
-
-// Name is required by the CFEvent interface.
-func (e CFEventECHServerStatus) Name() string {
-	return "ech server status"
-}
-
-// CFEventECHPublicNameMismatch is emitted if the outer SNI does not match
-// match the public name of the ECH configuration. Note that we do not record
-// the outer SNI in order to avoid collecting this potentially sensitive data.
-type CFEventECHPublicNameMismatch struct{}
-
-// Name is required by the CFEvent interface.
-func (e CFEventECHPublicNameMismatch) Name() string {
-	return "ech public name does not match outer sni"
-}
-
-// For backwards compatibility.
-type CFEventTLS13NegotiatedKEX = CFEventTLSNegotiatedNamedKEX
-
-// CFEventTLSNegotiatedNamedKEX is emitted when a key agreement mechanism has been
-// established that uses a named group. This includes all key agreements
-// in TLSv1.3, but excludes RSA and DH in TLS 1.2 and earlier.
-type CFEventTLSNegotiatedNamedKEX struct {
-	KEX CurveID
-}
-
-func (e CFEventTLSNegotiatedNamedKEX) Name() string {
-	return "CFEventTLSNegotiatedNamedKEX"
-}
-
-// CFEventTLS13HRR is emitted when a HRR is sent or received
-type CFEventTLS13HRR struct{}
-
-func (e CFEventTLS13HRR) Name() string {
-	return "CFEventTLS13HRR"
-}

transport/hysteria/xplus.go

@@ -10,15 +10,12 @@ import (
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/buf"
 	"github.com/sagernet/sing/common/bufio"
-	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
 )
 
 const xplusSaltLen = 16
 
-var errInalidPacket = E.New("invalid packet")
-
 func NewXPlusPacketConn(conn net.PacketConn, key []byte) net.PacketConn {
 	vectorisedWriter, isVectorised := bufio.CreateVectorisedPacketWriter(conn)
 	if isVectorised {
@@ -51,7 +48,8 @@ func (c *XPlusPacketConn) ReadFrom(p []byte) (n int, addr net.Addr, err error) {
 	if err != nil {
 		return
 	} else if n < xplusSaltLen {
-		return 0, nil, errInalidPacket
+		n = 0
+		return
 	}
 	key := sha256.Sum256(append(c.key, p[:xplusSaltLen]...))
 	for i := range p[xplusSaltLen:] {

transport/shadowtls/conn.go

@@ -9,24 +9,22 @@ import (
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/buf"
 	"github.com/sagernet/sing/common/bufio"
+	E "github.com/sagernet/sing/common/exceptions"
 	N "github.com/sagernet/sing/common/network"
 )
 
-var (
-	_ N.ExtendedConn     = (*Conn)(nil)
-	_ N.VectorisedWriter = (*Conn)(nil)
-)
+var _ N.VectorisedWriter = (*Conn)(nil)
 
 type Conn struct {
-	N.ExtendedConn
+	net.Conn
 	writer        N.VectorisedWriter
 	readRemaining int
 }
 
 func NewConn(conn net.Conn) *Conn {
 	return &Conn{
-		ExtendedConn: bufio.NewExtendedConn(conn),
-		writer:       bufio.NewVectorisedWriter(conn),
+		Conn:   conn,
+		writer: bufio.NewVectorisedWriter(conn),
 	}
 }
 
@@ -35,21 +33,24 @@ func (c *Conn) Read(p []byte) (n int, err error) {
 		if len(p) > c.readRemaining {
 			p = p[:c.readRemaining]
 		}
-		n, err = c.ExtendedConn.Read(p)
+		n, err = c.Conn.Read(p)
 		c.readRemaining -= n
 		return
 	}
 	var tlsHeader [5]byte
-	_, err = io.ReadFull(c.ExtendedConn, common.Dup(tlsHeader[:]))
+	_, err = io.ReadFull(c.Conn, common.Dup(tlsHeader[:]))
 	if err != nil {
 		return
 	}
 	length := int(binary.BigEndian.Uint16(tlsHeader[3:5]))
+	if tlsHeader[0] != 23 {
+		return 0, E.New("unexpected TLS record type: ", tlsHeader[0])
+	}
 	readLen := len(p)
 	if readLen > length {
 		readLen = length
 	}
-	n, err = c.ExtendedConn.Read(p[:readLen])
+	n, err = c.Conn.Read(p[:readLen])
 	if err != nil {
 		return
 	}
@@ -92,5 +93,5 @@ func (c *Conn) WriteVectorised(buffers []*buf.Buffer) error {
 }
 
 func (c *Conn) Upstream() any {
-	return c.ExtendedConn
+	return c.Conn
 }

transport/v2ray/grpc.go

@@ -15,7 +15,7 @@ import (
 	N "github.com/sagernet/sing/common/network"
 )
 
-func NewGRPCServer(ctx context.Context, options option.V2RayGRPCOptions, tlsConfig tls.Config, handler N.TCPConnectionHandler, errorHandler E.Handler) (adapter.V2RayServerTransport, error) {
+func NewGRPCServer(ctx context.Context, options option.V2RayGRPCOptions, tlsConfig tls.ServerConfig, handler N.TCPConnectionHandler, errorHandler E.Handler) (adapter.V2RayServerTransport, error) {
 	if options.ForceLite {
 		return v2raygrpclite.NewServer(ctx, options, tlsConfig, handler, errorHandler)
 	}

transport/v2ray/grpc_lite.go

@@ -14,7 +14,7 @@ import (
 	N "github.com/sagernet/sing/common/network"
 )
 
-func NewGRPCServer(ctx context.Context, options option.V2RayGRPCOptions, tlsConfig tls.Config, handler N.TCPConnectionHandler, errorHandler E.Handler) (adapter.V2RayServerTransport, error) {
+func NewGRPCServer(ctx context.Context, options option.V2RayGRPCOptions, tlsConfig tls.ServerConfig, handler N.TCPConnectionHandler, errorHandler E.Handler) (adapter.V2RayServerTransport, error) {
 	return v2raygrpclite.NewServer(ctx, options, tlsConfig, handler, errorHandler)
 }
 

transport/v2ray/quic.go

@@ -22,7 +22,7 @@ func RegisterQUICConstructor(server ServerConstructor[option.V2RayQUICOptions],
 	quicClientConstructor = client
 }
 
-func NewQUICServer(ctx context.Context, options option.V2RayQUICOptions, tlsConfig tls.Config, handler N.TCPConnectionHandler, errorHandler E.Handler) (adapter.V2RayServerTransport, error) {
+func NewQUICServer(ctx context.Context, options option.V2RayQUICOptions, tlsConfig tls.ServerConfig, handler N.TCPConnectionHandler, errorHandler E.Handler) (adapter.V2RayServerTransport, error) {
 	if quicServerConstructor == nil {
 		return nil, os.ErrInvalid
 	}

transport/v2ray/transport.go

@@ -15,11 +15,11 @@ import (
 )
 
 type (
-	ServerConstructor[O any] func(ctx context.Context, options O, tlsConfig tls.Config, handler N.TCPConnectionHandler, errorHandler E.Handler) (adapter.V2RayServerTransport, error)
+	ServerConstructor[O any] func(ctx context.Context, options O, tlsConfig tls.ServerConfig, handler N.TCPConnectionHandler, errorHandler E.Handler) (adapter.V2RayServerTransport, error)
 	ClientConstructor[O any] func(ctx context.Context, dialer N.Dialer, serverAddr M.Socksaddr, options O, tlsConfig tls.Config) (adapter.V2RayClientTransport, error)
 )
 
-func NewServerTransport(ctx context.Context, options option.V2RayTransportOptions, tlsConfig tls.Config, handler N.TCPConnectionHandler, errorHandler E.Handler) (adapter.V2RayServerTransport, error) {
+func NewServerTransport(ctx context.Context, options option.V2RayTransportOptions, tlsConfig tls.ServerConfig, handler N.TCPConnectionHandler, errorHandler E.Handler) (adapter.V2RayServerTransport, error) {
 	if options.Type == "" {
 		return nil, nil
 	}

transport/v2raygrpc/client.go

@@ -13,10 +13,10 @@ import (
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
 
+	"golang.org/x/net/http2"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/backoff"
 	"google.golang.org/grpc/connectivity"
-	"google.golang.org/grpc/credentials"
 	"google.golang.org/grpc/credentials/insecure"
 )
 
@@ -35,11 +35,8 @@ type Client struct {
 func NewClient(ctx context.Context, dialer N.Dialer, serverAddr M.Socksaddr, options option.V2RayGRPCOptions, tlsConfig tls.Config) (adapter.V2RayClientTransport, error) {
 	var dialOptions []grpc.DialOption
 	if tlsConfig != nil {
-		stdConfig, err := tlsConfig.Config()
-		if err != nil {
-			return nil, err
-		}
-		dialOptions = append(dialOptions, grpc.WithTransportCredentials(credentials.NewTLS(stdConfig)))
+		tlsConfig.SetNextProtos([]string{http2.NextProtoTLS})
+		dialOptions = append(dialOptions, grpc.WithTransportCredentials(NewTLSTransportCredentials(tlsConfig)))
 	} else {
 		dialOptions = append(dialOptions, grpc.WithTransportCredentials(insecure.NewCredentials()))
 	}

transport/v2raygrpc/credentials/credentials.go

@@ -0,0 +1,49 @@
+/*
+ * Copyright 2021 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package credentials
+
+import (
+	"context"
+)
+
+// requestInfoKey is a struct to be used as the key to store RequestInfo in a
+// context.
+type requestInfoKey struct{}
+
+// NewRequestInfoContext creates a context with ri.
+func NewRequestInfoContext(ctx context.Context, ri interface{}) context.Context {
+	return context.WithValue(ctx, requestInfoKey{}, ri)
+}
+
+// RequestInfoFromContext extracts the RequestInfo from ctx.
+func RequestInfoFromContext(ctx context.Context) interface{} {
+	return ctx.Value(requestInfoKey{})
+}
+
+// clientHandshakeInfoKey is a struct used as the key to store
+// ClientHandshakeInfo in a context.
+type clientHandshakeInfoKey struct{}
+
+// ClientHandshakeInfoFromContext extracts the ClientHandshakeInfo from ctx.
+func ClientHandshakeInfoFromContext(ctx context.Context) interface{} {
+	return ctx.Value(clientHandshakeInfoKey{})
+}
+
+// NewClientHandshakeInfoContext creates a context with chi.
+func NewClientHandshakeInfoContext(ctx context.Context, chi interface{}) context.Context {
+	return context.WithValue(ctx, clientHandshakeInfoKey{}, chi)
+}

transport/v2raygrpc/credentials/spiffe.go

@@ -0,0 +1,75 @@
+/*
+ *
+ * Copyright 2020 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+// Package credentials defines APIs for parsing SPIFFE ID.
+//
+// All APIs in this package are experimental.
+package credentials
+
+import (
+	"crypto/tls"
+	"crypto/x509"
+	"net/url"
+
+	"google.golang.org/grpc/grpclog"
+)
+
+var logger = grpclog.Component("credentials")
+
+// SPIFFEIDFromState parses the SPIFFE ID from State. If the SPIFFE ID format
+// is invalid, return nil with warning.
+func SPIFFEIDFromState(state tls.ConnectionState) *url.URL {
+	if len(state.PeerCertificates) == 0 || len(state.PeerCertificates[0].URIs) == 0 {
+		return nil
+	}
+	return SPIFFEIDFromCert(state.PeerCertificates[0])
+}
+
+// SPIFFEIDFromCert parses the SPIFFE ID from x509.Certificate. If the SPIFFE
+// ID format is invalid, return nil with warning.
+func SPIFFEIDFromCert(cert *x509.Certificate) *url.URL {
+	if cert == nil || cert.URIs == nil {
+		return nil
+	}
+	var spiffeID *url.URL
+	for _, uri := range cert.URIs {
+		if uri == nil || uri.Scheme != "spiffe" || uri.Opaque != "" || (uri.User != nil && uri.User.Username() != "") {
+			continue
+		}
+		// From this point, we assume the uri is intended for a SPIFFE ID.
+		if len(uri.String()) > 2048 {
+			logger.Warning("invalid SPIFFE ID: total ID length larger than 2048 bytes")
+			return nil
+		}
+		if len(uri.Host) == 0 || len(uri.Path) == 0 {
+			logger.Warning("invalid SPIFFE ID: domain or workload ID is empty")
+			return nil
+		}
+		if len(uri.Host) > 255 {
+			logger.Warning("invalid SPIFFE ID: domain length larger than 255 characters")
+			return nil
+		}
+		// A valid SPIFFE certificate can only have exactly one URI SAN field.
+		if len(cert.URIs) > 1 {
+			logger.Warning("invalid SPIFFE ID: multiple URI SANs")
+			return nil
+		}
+		spiffeID = uri
+	}
+	return spiffeID
+}

transport/v2raygrpc/credentials/syscallconn.go

@@ -0,0 +1,58 @@
+/*
+ *
+ * Copyright 2018 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package credentials
+
+import (
+	"net"
+	"syscall"
+)
+
+type sysConn = syscall.Conn
+
+// syscallConn keeps reference of rawConn to support syscall.Conn for channelz.
+// SyscallConn() (the method in interface syscall.Conn) is explicitly
+// implemented on this type,
+//
+// Interface syscall.Conn is implemented by most net.Conn implementations (e.g.
+// TCPConn, UnixConn), but is not part of net.Conn interface. So wrapper conns
+// that embed net.Conn don't implement syscall.Conn. (Side note: tls.Conn
+// doesn't embed net.Conn, so even if syscall.Conn is part of net.Conn, it won't
+// help here).
+type syscallConn struct {
+	net.Conn
+	// sysConn is a type alias of syscall.Conn. It's necessary because the name
+	// `Conn` collides with `net.Conn`.
+	sysConn
+}
+
+// WrapSyscallConn tries to wrap rawConn and newConn into a net.Conn that
+// implements syscall.Conn. rawConn will be used to support syscall, and newConn
+// will be used for read/write.
+//
+// This function returns newConn if rawConn doesn't implement syscall.Conn.
+func WrapSyscallConn(rawConn, newConn net.Conn) net.Conn {
+	sysConn, ok := rawConn.(syscall.Conn)
+	if !ok {
+		return newConn
+	}
+	return &syscallConn{
+		Conn:    newConn,
+		sysConn: sysConn,
+	}
+}

transport/v2raygrpc/credentials/util.go

@@ -0,0 +1,52 @@
+/*
+ *
+ * Copyright 2020 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package credentials
+
+import (
+	"crypto/tls"
+)
+
+const alpnProtoStrH2 = "h2"
+
+// AppendH2ToNextProtos appends h2 to next protos.
+func AppendH2ToNextProtos(ps []string) []string {
+	for _, p := range ps {
+		if p == alpnProtoStrH2 {
+			return ps
+		}
+	}
+	ret := make([]string, 0, len(ps)+1)
+	ret = append(ret, ps...)
+	return append(ret, alpnProtoStrH2)
+}
+
+// CloneTLSConfig returns a shallow clone of the exported
+// fields of cfg, ignoring the unexported sync.Once, which
+// contains a mutex and must not be copied.
+//
+// If cfg is nil, a new zero tls.Config is returned.
+//
+// TODO: inline this function if possible.
+func CloneTLSConfig(cfg *tls.Config) *tls.Config {
+	if cfg == nil {
+		return &tls.Config{}
+	}
+
+	return cfg.Clone()
+}