Add sniff timeoit

2025-08-23 01:56:48 +08:00 · 2025-02-21 10:44:33 +00:00
31 changed files with 391 additions and 540 deletions
--- a/app/dispatcher/default.go
+++ b/app/dispatcher/default.go
@@ -31,10 +31,18 @@ type cachedReader struct {
 	sync.Mutex
 	reader *pipe.Reader
 	cache  buf.MultiBuffer
+
+	ReadBufferTimeout time.Duration
 }

 func (r *cachedReader) Cache(b *buf.Buffer) {
-	mb, _ := r.reader.ReadMultiBufferTimeout(time.Millisecond * 100)
+	var timeout time.Duration
+	if r.ReadBufferTimeout == 0 {
+		timeout = time.Millisecond * 100
+	} else {
+		timeout = r.ReadBufferTimeout
+	}
+	mb, _ := r.reader.ReadMultiBufferTimeout(timeout)
 	r.Lock()
 	if !mb.IsEmpty() {
 		r.cache, _ = buf.MergeMulti(r.cache, mb)
@@ -360,6 +368,8 @@ func sniffer(ctx context.Context, cReader *cachedReader, metadataOnly bool, netw

 	sniffer := NewSniffer(ctx)

+	cReader.ReadBufferTimeout = sniffer.Timeout
+
 	metaresult, metadataErr := sniffer.SniffMetadata(ctx)

 	if metadataOnly {
--- a/app/dispatcher/sniffer.go
+++ b/app/dispatcher/sniffer.go
@@ -2,6 +2,7 @@ package dispatcher

 import (
 	"context"
+	"time"

 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
@@ -10,6 +11,7 @@ import (
 	"github.com/xtls/xray-core/common/protocol/http"
 	"github.com/xtls/xray-core/common/protocol/quic"
 	"github.com/xtls/xray-core/common/protocol/tls"
+	"github.com/xtls/xray-core/common/session"
 )

 type SniffResult interface {
@@ -30,9 +32,11 @@ type protocolSnifferWithMetadata struct {

 type Sniffer struct {
 	sniffer []protocolSnifferWithMetadata
+	Timeout time.Duration
 }

 func NewSniffer(ctx context.Context) *Sniffer {
+	content := session.ContentFromContext(ctx)
 	ret := &Sniffer{
 		sniffer: []protocolSnifferWithMetadata{
 			{func(c context.Context, b []byte) (SniffResult, error) { return http.SniffHTTP(b, c) }, false, net.Network_TCP},
@@ -41,6 +45,7 @@ func NewSniffer(ctx context.Context) *Sniffer {
 			{func(c context.Context, b []byte) (SniffResult, error) { return quic.SniffQUIC(b) }, false, net.Network_UDP},
 			{func(c context.Context, b []byte) (SniffResult, error) { return bittorrent.SniffUTP(b) }, false, net.Network_UDP},
 		},
+		Timeout: content.SniffingRequest.Timeout,
 	}
 	if sniffer, err := newFakeDNSSniffer(ctx); err == nil {
 		others := ret.sniffer
--- a/app/dns/nameserver.go
+++ b/app/dns/nameserver.go
@@ -45,13 +45,11 @@ func NewServer(ctx context.Context, dest net.Destination, dispatcher routing.Dis
 		case strings.EqualFold(u.String(), "localhost"):
 			return NewLocalNameServer(queryStrategy), nil
 		case strings.EqualFold(u.Scheme, "https"): // DNS-over-HTTPS Remote mode
-			return NewDoHNameServer(u, queryStrategy, dispatcher, false), nil
+			return NewDoHNameServer(u, dispatcher, queryStrategy, false)
 		case strings.EqualFold(u.Scheme, "h2c"): // DNS-over-HTTPS h2c Remote mode
-			return NewDoHNameServer(u, queryStrategy, dispatcher, true), nil
+			return NewDoHNameServer(u, dispatcher, queryStrategy, true)
 		case strings.EqualFold(u.Scheme, "https+local"): // DNS-over-HTTPS Local mode
-			return NewDoHNameServer(u, queryStrategy, nil, false), nil
-		case strings.EqualFold(u.Scheme, "h2c+local"): // DNS-over-HTTPS h2c Local mode
-			return NewDoHNameServer(u, queryStrategy, nil, true), nil
+			return NewDoHLocalNameServer(u, queryStrategy), nil
 		case strings.EqualFold(u.Scheme, "quic+local"): // DNS-over-QUIC Local mode
 			return NewQUICNameServer(u, queryStrategy)
 		case strings.EqualFold(u.Scheme, "tcp"): // DNS-over-TCP Remote mode
--- a/app/dns/nameserver_doh.go
+++ b/app/dns/nameserver_doh.go
@@ -8,13 +8,10 @@ import (
 	"io"
 	"net/http"
 	"net/url"
-	"strings"
 	"sync"
 	"time"

-	utls "github.com/refraction-networking/utls"
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/crypto"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/log"
 	"github.com/xtls/xray-core/common/net"
@@ -34,6 +31,7 @@ import (
 // which is compatible with traditional dns over udp(RFC1035),
 // thus most of the DOH implementation is copied from udpns.go
 type DoHNameServer struct {
+	dispatcher routing.Dispatcher
 	sync.RWMutex
 	ips           map[string]*record
 	pub           *pubsub.Service
@@ -44,18 +42,108 @@ type DoHNameServer struct {
 	queryStrategy QueryStrategy
 }

-// NewDoHNameServer creates DOH/DOHL client object for remote/local resolving.
-func NewDoHNameServer(url *url.URL, queryStrategy QueryStrategy, dispatcher routing.Dispatcher, h2c bool) *DoHNameServer {
+// NewDoHNameServer creates DOH server object for remote resolving.
+func NewDoHNameServer(url *url.URL, dispatcher routing.Dispatcher, queryStrategy QueryStrategy, h2c bool) (*DoHNameServer, error) {
 	url.Scheme = "https"
-	mode := "DOH"
-	if dispatcher == nil {
-		mode = "DOHL"
+	errors.LogInfo(context.Background(), "DNS: created Remote DNS-over-HTTPS client for ", url.String(), ", with h2c ", h2c)
+	s := baseDOHNameServer(url, "DOH", queryStrategy)
+
+	s.dispatcher = dispatcher
+	dialContext := func(ctx context.Context, network, addr string) (net.Conn, error) {
+		dest, err := net.ParseDestination(network + ":" + addr)
+		if err != nil {
+			return nil, err
+		}
+		dnsCtx := toDnsContext(ctx, s.dohURL)
+		if h2c {
+			dnsCtx = session.ContextWithMitmAlpn11(dnsCtx, false) // for insurance
+			dnsCtx = session.ContextWithMitmServerName(dnsCtx, url.Hostname())
+		}
+		link, err := s.dispatcher.Dispatch(dnsCtx, dest)
+		select {
+		case <-ctx.Done():
+			return nil, ctx.Err()
+		default:
+
+		}
+		if err != nil {
+			return nil, err
+		}
+
+		cc := common.ChainedClosable{}
+		if cw, ok := link.Writer.(common.Closable); ok {
+			cc = append(cc, cw)
+		}
+		if cr, ok := link.Reader.(common.Closable); ok {
+			cc = append(cc, cr)
+		}
+		return cnc.NewConnection(
+			cnc.ConnectionInputMulti(link.Writer),
+			cnc.ConnectionOutputMulti(link.Reader),
+			cnc.ConnectionOnClose(cc),
+		), nil
 	}
-	errors.LogInfo(context.Background(), "DNS: created ", mode, " client for ", url.String(), ", with h2c ", h2c)
+
+	s.httpClient = &http.Client{
+		Timeout: time.Second * 180,
+		Transport: &http.Transport{
+			MaxIdleConns:        30,
+			IdleConnTimeout:     90 * time.Second,
+			TLSHandshakeTimeout: 30 * time.Second,
+			ForceAttemptHTTP2:   true,
+			DialContext:         dialContext,
+		},
+	}
+	if h2c {
+		s.httpClient.Transport = &http2.Transport{
+			IdleConnTimeout: 90 * time.Second,
+			DialTLSContext: func(ctx context.Context, network, addr string, cfg *tls.Config) (net.Conn, error) {
+				return dialContext(ctx, network, addr)
+			},
+		}
+	}
+
+	return s, nil
+}
+
+// NewDoHLocalNameServer creates DOH client object for local resolving
+func NewDoHLocalNameServer(url *url.URL, queryStrategy QueryStrategy) *DoHNameServer {
+	url.Scheme = "https"
+	s := baseDOHNameServer(url, "DOHL", queryStrategy)
+	tr := &http.Transport{
+		IdleConnTimeout:   90 * time.Second,
+		ForceAttemptHTTP2: true,
+		DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
+			dest, err := net.ParseDestination(network + ":" + addr)
+			if err != nil {
+				return nil, err
+			}
+			conn, err := internet.DialSystem(ctx, dest, nil)
+			log.Record(&log.AccessMessage{
+				From:   "DNS",
+				To:     s.dohURL,
+				Status: log.AccessAccepted,
+				Detour: "local",
+			})
+			if err != nil {
+				return nil, err
+			}
+			return conn, nil
+		},
+	}
+	s.httpClient = &http.Client{
+		Timeout:   time.Second * 180,
+		Transport: tr,
+	}
+	errors.LogInfo(context.Background(), "DNS: created Local DNS-over-HTTPS client for ", url.String())
+	return s
+}
+
+func baseDOHNameServer(url *url.URL, prefix string, queryStrategy QueryStrategy) *DoHNameServer {
 	s := &DoHNameServer{
 		ips:           make(map[string]*record),
 		pub:           pubsub.NewService(),
-		name:          mode + "//" + url.Host,
+		name:          prefix + "//" + url.Host,
 		dohURL:        url.String(),
 		queryStrategy: queryStrategy,
 	}
@@ -63,65 +151,6 @@ func NewDoHNameServer(url *url.URL, queryStrategy QueryStrategy, dispatcher rout
 		Interval: time.Minute,
 		Execute:  s.Cleanup,
 	}
-	s.httpClient = &http.Client{
-		Transport: &http2.Transport{
-			IdleConnTimeout: net.ConnIdleTimeout,
-			ReadIdleTimeout: net.ChromeH2KeepAlivePeriod,
-			DialTLSContext: func(ctx context.Context, network, addr string, cfg *tls.Config) (net.Conn, error) {
-				dest, err := net.ParseDestination(network + ":" + addr)
-				if err != nil {
-					return nil, err
-				}
-				var conn net.Conn
-				if dispatcher != nil {
-					dnsCtx := toDnsContext(ctx, s.dohURL)
-					if h2c {
-						dnsCtx = session.ContextWithMitmAlpn11(dnsCtx, false) // for insurance
-						dnsCtx = session.ContextWithMitmServerName(dnsCtx, url.Hostname())
-					}
-					link, err := dispatcher.Dispatch(dnsCtx, dest)
-					select {
-					case <-ctx.Done():
-						return nil, ctx.Err()
-					default:
-					}
-					if err != nil {
-						return nil, err
-					}
-					cc := common.ChainedClosable{}
-					if cw, ok := link.Writer.(common.Closable); ok {
-						cc = append(cc, cw)
-					}
-					if cr, ok := link.Reader.(common.Closable); ok {
-						cc = append(cc, cr)
-					}
-					conn = cnc.NewConnection(
-						cnc.ConnectionInputMulti(link.Writer),
-						cnc.ConnectionOutputMulti(link.Reader),
-						cnc.ConnectionOnClose(cc),
-					)
-				} else {
-					log.Record(&log.AccessMessage{
-						From:   "DNS",
-						To:     s.dohURL,
-						Status: log.AccessAccepted,
-						Detour: "local",
-					})
-					conn, err = internet.DialSystem(ctx, dest, nil)
-					if err != nil {
-						return nil, err
-					}
-				}
-				if !h2c {
-					conn = utls.UClient(conn, &utls.Config{ServerName: url.Hostname()}, utls.HelloChrome_Auto)
-					if err := conn.(*utls.UConn).HandshakeContext(ctx); err != nil {
-						return nil, err
-					}
-				}
-				return conn, nil
-			},
-		},
-	}
 	return s
 }

@@ -281,8 +310,6 @@ func (s *DoHNameServer) dohHTTPSContext(ctx context.Context, b []byte) ([]byte,
 	req.Header.Add("Accept", "application/dns-message")
 	req.Header.Add("Content-Type", "application/dns-message")

-	req.Header.Set("X-Padding", strings.Repeat("X", int(crypto.RandBetween(100, 1000))))
-
 	hc := s.httpClient

 	resp, err := hc.Do(req.WithContext(ctx))
--- a/app/dns/nameserver_doh_test.go
+++ b/app/dns/nameserver_doh_test.go
@@ -17,7 +17,7 @@ func TestDOHNameServer(t *testing.T) {
 	url, err := url.Parse("https+local://1.1.1.1/dns-query")
 	common.Must(err)

-	s := NewDoHNameServer(url, QueryStrategy_USE_IP, nil, false)
+	s := NewDoHLocalNameServer(url, QueryStrategy_USE_IP)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
 	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
@@ -34,7 +34,7 @@ func TestDOHNameServerWithCache(t *testing.T) {
 	url, err := url.Parse("https+local://1.1.1.1/dns-query")
 	common.Must(err)

-	s := NewDoHNameServer(url, QueryStrategy_USE_IP, nil, false)
+	s := NewDoHLocalNameServer(url, QueryStrategy_USE_IP)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
 	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
@@ -62,7 +62,7 @@ func TestDOHNameServerWithIPv4Override(t *testing.T) {
 	url, err := url.Parse("https+local://1.1.1.1/dns-query")
 	common.Must(err)

-	s := NewDoHNameServer(url, QueryStrategy_USE_IP4, nil, false)
+	s := NewDoHLocalNameServer(url, QueryStrategy_USE_IP4)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
 	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
@@ -85,7 +85,7 @@ func TestDOHNameServerWithIPv6Override(t *testing.T) {
 	url, err := url.Parse("https+local://1.1.1.1/dns-query")
 	common.Must(err)

-	s := NewDoHNameServer(url, QueryStrategy_USE_IP6, nil, false)
+	s := NewDoHLocalNameServer(url, QueryStrategy_USE_IP6)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
 	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
--- a/app/proxyman/config.pb.go
+++ b/app/proxyman/config.pb.go
@@ -190,8 +190,9 @@ type SniffingConfig struct {
 	// Whether should only try to sniff metadata without waiting for client input.
 	// Can be used to support SMTP like protocol where server send the first
 	// message.
-	MetadataOnly bool `protobuf:"varint,4,opt,name=metadata_only,json=metadataOnly,proto3" json:"metadata_only,omitempty"`
-	RouteOnly    bool `protobuf:"varint,5,opt,name=route_only,json=routeOnly,proto3" json:"route_only,omitempty"`
+	MetadataOnly bool  `protobuf:"varint,4,opt,name=metadata_only,json=metadataOnly,proto3" json:"metadata_only,omitempty"`
+	RouteOnly    bool  `protobuf:"varint,5,opt,name=route_only,json=routeOnly,proto3" json:"route_only,omitempty"`
+	Timeout      int64 `protobuf:"varint,6,opt,name=timeout,proto3" json:"timeout,omitempty"`
 }

 func (x *SniffingConfig) Reset() {
@@ -259,6 +260,13 @@ func (x *SniffingConfig) GetRouteOnly() bool {
 	return false
 }

+func (x *SniffingConfig) GetTimeout() int64 {
+	if x != nil {
+		return x.Timeout
+	}
+	return 0
+}
+
 type ReceiverConfig struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -725,7 +733,7 @@ var file_app_proxyman_config_proto_rawDesc = []byte{
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+	0x12, 0x54, 0x0a, 0x12, 0x6d, 0x75, 0x6c, 0x74, 0x69, 0x70, 0x6c, 0x65, 0x78, 0x5f, 0x73, 0x65,
+	0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x18, 0x04, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x25, 0x2e, 0x78,
+	0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e,
+	0x2e, 0x4d, 0x75, 0x6c, 0x74, 0x69, 0x70, 0x6c, 0x65, 0x78, 0x69, 0x6e, 0x67, 0x43, 0x6f, 0x6e,
+	0x66, 0x69, 0x67, 0x52, 0x11, 0x6d, 0x75, 0x6c, 0x74, 0x69, 0x70, 0x6c, 0x65, 0x78, 0x53, 0x65,
+	0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x12, 0x19, 0x0a, 0x08, 0x76, 0x69, 0x61, 0x5f, 0x63, 0x69,
+	0x64, 0x72, 0x18, 0x05, 0x20, 0x01, 0x28, 0x09, 0x52, 0x07, 0x76, 0x69, 0x61, 0x43, 0x69, 0x64,
+	0x72, 0x22, 0xa4, 0x01, 0x0a, 0x12, 0x4d, 0x75, 0x6c, 0x74, 0x69, 0x70, 0x6c, 0x65, 0x78, 0x69,
+	0x6e, 0x67, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x18, 0x0a, 0x07, 0x65, 0x6e, 0x61, 0x62,
+	0x6c, 0x65, 0x64, 0x18, 0x01, 0x20, 0x01, 0x28, 0x08, 0x52, 0x07, 0x65, 0x6e, 0x61, 0x62, 0x6c,
+	0x65, 0x64, 0x12, 0x20, 0x0a, 0x0b, 0x63, 0x6f, 0x6e, 0x63, 0x75, 0x72, 0x72, 0x65, 0x6e, 0x63,
+	0x79, 0x18, 0x02, 0x20, 0x01, 0x28, 0x05, 0x52, 0x0b, 0x63, 0x6f, 0x6e, 0x63, 0x75, 0x72, 0x72,
+	0x65, 0x6e, 0x63, 0x79, 0x12, 0x28, 0x0a, 0x0f, 0x78, 0x75, 0x64, 0x70, 0x43, 0x6f, 0x6e, 0x63,
+	0x75, 0x72, 0x72, 0x65, 0x6e, 0x63, 0x79, 0x18, 0x03, 0x20, 0x01, 0x28, 0x05, 0x52, 0x0f, 0x78,
+	0x75, 0x64, 0x70, 0x43, 0x6f, 0x6e, 0x63, 0x75, 0x72, 0x72, 0x65, 0x6e, 0x63, 0x79, 0x12, 0x28,
+	0x0a, 0x0f, 0x78, 0x75, 0x64, 0x70, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x55, 0x44, 0x50, 0x34, 0x34,
+	0x33, 0x18, 0x04, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0f, 0x78, 0x75, 0x64, 0x70, 0x50, 0x72, 0x6f,
+	0x78, 0x79, 0x55, 0x44, 0x50, 0x34, 0x34, 0x33, 0x42, 0x55, 0x0a, 0x15, 0x63, 0x6f, 0x6d, 0x2e,
+	0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61,
+	0x6e, 0x50, 0x01, 0x5a, 0x26, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f,
+	0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x61,
+	0x70, 0x70, 0x2f, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e, 0xaa, 0x02, 0x11, 0x58, 0x72,
+	0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e, 0x62,
+	0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }

 var (
--- a/app/proxyman/config.proto
+++ b/app/proxyman/config.proto
@@ -55,6 +55,8 @@ message SniffingConfig {
  bool metadata_only = 4;

  bool route_only = 5;
+
+  int64 timeout = 6;
 }

 message ReceiverConfig {
--- a/app/proxyman/inbound/worker.go
+++ b/app/proxyman/inbound/worker.go
@@ -103,6 +103,7 @@ func (w *tcpWorker) callback(conn stat.Connection) {
 		content.SniffingRequest.ExcludeForDomain = w.sniffingConfig.DomainsExcluded
 		content.SniffingRequest.MetadataOnly = w.sniffingConfig.MetadataOnly
 		content.SniffingRequest.RouteOnly = w.sniffingConfig.RouteOnly
+		content.SniffingRequest.Timeout = time.Duration(w.sniffingConfig.Timeout) * time.Millisecond
 	}
 	ctx = session.ContextWithContent(ctx, content)

@@ -326,6 +327,7 @@ func (w *udpWorker) callback(b *buf.Buffer, source net.Destination, originalDest
 				content.SniffingRequest.OverrideDestinationForProtocol = w.sniffingConfig.DestinationOverride
 				content.SniffingRequest.MetadataOnly = w.sniffingConfig.MetadataOnly
 				content.SniffingRequest.RouteOnly = w.sniffingConfig.RouteOnly
+				content.SniffingRequest.Timeout = time.Duration(w.sniffingConfig.Timeout) * time.Millisecond
 			}
 			ctx = session.ContextWithContent(ctx, content)
 			if err := w.proxy.Process(ctx, net.Network_UDP, conn, w.dispatcher); err != nil {
@@ -477,6 +479,7 @@ func (w *dsWorker) callback(conn stat.Connection) {
 		content.SniffingRequest.ExcludeForDomain = w.sniffingConfig.DomainsExcluded
 		content.SniffingRequest.MetadataOnly = w.sniffingConfig.MetadataOnly
 		content.SniffingRequest.RouteOnly = w.sniffingConfig.RouteOnly
+		content.SniffingRequest.Timeout = time.Duration(w.sniffingConfig.Timeout) * time.Millisecond
 	}
 	ctx = session.ContextWithContent(ctx, content)

--- a/common/crypto/crypto.go
+++ b/common/crypto/crypto.go
@@ -1,15 +1,2 @@
 // Package crypto provides common crypto libraries for Xray.
 package crypto // import "github.com/xtls/xray-core/common/crypto"
-
-import (
-	"crypto/rand"
-	"math/big"
-)
-
-func RandBetween(from int64, to int64) int64 {
-	if from == to {
-		return from
-	}
-	bigInt, _ := rand.Int(rand.Reader, big.NewInt(to-from))
-	return from + bigInt.Int64()
-}
--- a/common/net/net.go
+++ b/common/net/net.go
@@ -1,14 +1,2 @@
 // Package net is a drop-in replacement to Golang's net package, with some more functionalities.
 package net // import "github.com/xtls/xray-core/common/net"
-
-import "time"
-
-// defines the maximum time an idle TCP session can survive in the tunnel, so
-// it should be consistent across HTTP versions and with other transports.
-const ConnIdleTimeout = 300 * time.Second
-
-// consistent with quic-go
-const QuicgoH3KeepAlivePeriod = 10 * time.Second
-
-// consistent with chrome
-const ChromeH2KeepAlivePeriod = 45 * time.Second
--- a/common/session/session.go
+++ b/common/session/session.go
@@ -5,6 +5,7 @@ import (
 	"context"
 	"math/rand"
 	"sync"
+	"time"

 	c "github.com/xtls/xray-core/common/ctx"
 	"github.com/xtls/xray-core/common/errors"
@@ -80,6 +81,7 @@ type SniffingRequest struct {
 	Enabled                        bool
 	MetadataOnly                   bool
 	RouteOnly                      bool
+	Timeout                        time.Duration
 }

 // Content is the metadata of the connection content.
--- a/core/core.go
+++ b/core/core.go
@@ -18,8 +18,8 @@ import (

 var (
 	Version_x byte = 25
-	Version_y byte = 3
-	Version_z byte = 3
+	Version_y byte = 2
+	Version_z byte = 21
 )

 var (
--- a/go.mod
+++ b/go.mod
@@ -1,13 +1,13 @@
 module github.com/xtls/xray-core

-go 1.24
+go 1.23

 require (
 	github.com/OmarTariq612/goech v0.0.0-20240405204721-8e2e1dafd3a0
 	github.com/cloudflare/circl v1.6.0
 	github.com/ghodss/yaml v1.0.1-0.20220118164431-d8423dcdf344
 	github.com/golang/mock v1.7.0-rc.1
-	github.com/google/go-cmp v0.7.0
+	github.com/google/go-cmp v0.6.0
 	github.com/gorilla/websocket v1.5.3
 	github.com/miekg/dns v1.1.63
 	github.com/pelletier/go-toml v1.9.5
@@ -22,7 +22,7 @@ require (
 	github.com/vishvananda/netlink v1.3.0
 	github.com/xtls/reality v0.0.0-20240712055506-48f0b2d5ed6d
 	go4.org/netipx v0.0.0-20231129151722-fdeea329fbba
-	golang.org/x/crypto v0.35.0
+	golang.org/x/crypto v0.33.0
 	golang.org/x/net v0.35.0
 	golang.org/x/sync v0.11.0
 	golang.org/x/sys v0.30.0
@@ -31,7 +31,7 @@ require (
 	google.golang.org/protobuf v1.36.5
 	gvisor.dev/gvisor v0.0.0-20240320123526-dc6abceb7ff0
 	h12.io/socks v1.0.3
-	lukechampine.com/blake3 v1.4.0
+	lukechampine.com/blake3 v1.3.0
 )

 require (
--- a/go.sum
+++ b/go.sum
@@ -24,8 +24,8 @@ github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek
 github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps=
 github.com/google/btree v1.1.2 h1:xf4v41cLI2Z6FxbKm+8Bu+m8ifhj15JuZ9sa0jZCMUU=
 github.com/google/btree v1.1.2/go.mod h1:qOPhT0dTNdNzV6Z/lhRX0YXUafgPLFUh+gZMl761Gm4=
-github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
-github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/pprof v0.0.0-20240528025155-186aa0362fba h1:ql1qNgCyOB7iAEk8JTNM+zJrgIbnyCKX/wdlyPufP5g=
 github.com/google/pprof v0.0.0-20240528025155-186aa0362fba/go.mod h1:K1liHPHnj73Fdn/EKuT8nrFqBihUSKXoLYU0BuatOYo=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
@@ -95,8 +95,8 @@ go4.org/netipx v0.0.0-20231129151722-fdeea329fbba h1:0b9z3AuHCjxk0x/opv64kcgZLBs
 go4.org/netipx v0.0.0-20231129151722-fdeea329fbba/go.mod h1:PLyyIXexvUFg3Owu6p/WfdlivPbZJsZdgWZlrGope/Y=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
-golang.org/x/crypto v0.35.0 h1:b15kiHdrGCHrP6LvwaQ3c03kgNhhiMgvlhxHQhmg2Xs=
-golang.org/x/crypto v0.35.0/go.mod h1:dy7dXNW32cAb/6/PRuTNsix8T+vJAqvuIy5Bli/x0YQ=
+golang.org/x/crypto v0.33.0 h1:IOBPskki6Lysi0lo9qQvbxiQ+FvsCC/YWOecCHAixus=
+golang.org/x/crypto v0.33.0/go.mod h1:bVdXmD7IV/4GdElGPozy6U7lWdRXA4qyRVGJV57uQ5M=
 golang.org/x/exp v0.0.0-20240531132922-fd00a4e0eefc h1:O9NuF4s+E/PvMIy+9IUZB9znFwUIXEWSstNjek6VpVg=
 golang.org/x/exp v0.0.0-20240531132922-fd00a4e0eefc/go.mod h1:XtvwrStGgqGPLc4cjQfWqZHG1YFdYs6swckp8vpsjnc=
 golang.org/x/mod v0.5.1/go.mod h1:5OXOZSfqPIIbmVBIIKWRFfZjPR0E5r58TLhUjH0a2Ro=
@@ -160,5 +160,5 @@ gvisor.dev/gvisor v0.0.0-20240320123526-dc6abceb7ff0 h1:P+U/06iIKPQ3DLcg+zBfSCia
 gvisor.dev/gvisor v0.0.0-20240320123526-dc6abceb7ff0/go.mod h1:NQHVAzMwvZ+Qe3ElSiHmq9RUm1MdNHpUZ52fiEqvn+0=
 h12.io/socks v1.0.3 h1:Ka3qaQewws4j4/eDQnOdpr4wXsC//dXtWvftlIcCQUo=
 h12.io/socks v1.0.3/go.mod h1:AIhxy1jOId/XCz9BO+EIgNL2rQiPTBNnOfnVnQ+3Eck=
-lukechampine.com/blake3 v1.4.0 h1:xDbKOZCVbnZsfzM6mHSYcGRHZ3YrLDzqz8XnV4uaD5w=
-lukechampine.com/blake3 v1.4.0/go.mod h1:MQJNQCTnR+kwOP/JEZSxj3MaQjp80FOFSNMMHXcSeX0=
+lukechampine.com/blake3 v1.3.0 h1:sJ3XhFINmHSrYCgl958hscfIa3bw8x4DqMP3u1YvoYE=
+lukechampine.com/blake3 v1.3.0/go.mod h1:0OFRp7fBtAylGVCO40o87sbupkyIGgbpv1+M1k1LM6k=
--- a/infra/conf/transport_internet.go
+++ b/infra/conf/transport_internet.go
@@ -711,7 +711,6 @@ type SocketConfig struct {
 	Interface            string                 `json:"interface"`
 	TcpMptcp             bool                   `json:"tcpMptcp"`
 	CustomSockopt        []*CustomSockoptConfig `json:"customSockopt"`
-	AddressPortStrategy  string                 `json:"addressPortStrategy"`
 }

 // Build implements Buildable.
@@ -781,26 +780,6 @@ func (c *SocketConfig) Build() (*internet.SocketConfig, error) {
 		customSockopts = append(customSockopts, customSockopt)
 	}

-	addressPortStrategy := internet.AddressPortStrategy_None
-	switch strings.ToLower(c.AddressPortStrategy) {
-	case "none", "":
-		addressPortStrategy = internet.AddressPortStrategy_None
-	case "srvportonly":
-		addressPortStrategy = internet.AddressPortStrategy_SrvPortOnly
-	case "srvaddressonly":
-		addressPortStrategy = internet.AddressPortStrategy_SrvAddressOnly
-	case "srvportandaddress":
-		addressPortStrategy = internet.AddressPortStrategy_SrvPortAndAddress
-	case "txtportonly":
-		addressPortStrategy = internet.AddressPortStrategy_TxtPortOnly
-	case "txtaddressonly":
-		addressPortStrategy = internet.AddressPortStrategy_TxtAddressOnly
-	case "txtportandaddress":
-		addressPortStrategy = internet.AddressPortStrategy_TxtPortAndAddress
-	default:
-		return nil, errors.New("unsupported address and port strategy: ", c.AddressPortStrategy)
-	}
-
 	return &internet.SocketConfig{
 		Mark:                 c.Mark,
 		Tfo:                  tfo,
@@ -819,7 +798,6 @@ func (c *SocketConfig) Build() (*internet.SocketConfig, error) {
 		Interface:            c.Interface,
 		TcpMptcp:             c.TcpMptcp,
 		CustomSockopt:        customSockopts,
-		AddressPortStrategy:  addressPortStrategy,
 	}, nil
 }

--- a/infra/conf/xray.go
+++ b/infra/conf/xray.go
@@ -55,6 +55,7 @@ type SniffingConfig struct {
 	DomainsExcluded *StringList `json:"domainsExcluded"`
 	MetadataOnly    bool        `json:"metadataOnly"`
 	RouteOnly       bool        `json:"routeOnly"`
+	Timeout         int64       `json:"timeout"`
 }

 // Build implements Buildable.
@@ -92,6 +93,7 @@ func (c *SniffingConfig) Build() (*proxyman.SniffingConfig, error) {
 		DomainsExcluded:     d,
 		MetadataOnly:        c.MetadataOnly,
 		RouteOnly:           c.RouteOnly,
+		Timeout:             c.Timeout,
 	}, nil
 }

--- a/infra/vprotogen/main.go
+++ b/infra/vprotogen/main.go
@@ -89,11 +89,12 @@ func whichProtoc(suffix, targetedVersion string) (string, error) {

 	path, err := exec.LookPath(protoc)
 	if err != nil {
-		return "", fmt.Errorf(`
+		errStr := fmt.Sprintf(`
 Command "%s" not found.
 Make sure that %s is in your system path or current path.
 Download %s v%s or later from https://github.com/protocolbuffers/protobuf/releases
 `, protoc, protoc, protoc, targetedVersion)
+		return "", fmt.Errorf(errStr)
 	}
 	return path, nil
 }
--- a/main/commands/all/convert/json.go
+++ b/main/commands/all/convert/json.go
@@ -50,17 +50,17 @@ func executeTypedMessageToJson(cmd *base.Command, args []string) {

 	reader, err := confloader.LoadConfig(cmd.Flag.Arg(0))
 	if err != nil {
-		base.Fatalf("failed to load config: %s", err)
+		base.Fatalf(err.Error())
 	}

 	b, err := io.ReadAll(reader)
 	if err != nil {
-		base.Fatalf("failed to read config: %s", err)
+		base.Fatalf(err.Error())
 	}

 	tm := cserial.TypedMessage{}
 	if err = json.Unmarshal(b, &tm); err != nil {
-		base.Fatalf("failed to unmarshal config: %s", err)
+		base.Fatalf(err.Error())
 	}

 	if j, ok := creflect.MarshalToJson(&tm, injectTypeInfo); ok {
--- a/main/commands/all/convert/protobuf.go
+++ b/main/commands/all/convert/protobuf.go
@@ -53,12 +53,12 @@ func executeConvertConfigsToProtobuf(cmd *base.Command, args []string) {
 	}

 	if len(unnamedArgs) < 1 {
-		base.Fatalf("invalid config list length: %d", len(unnamedArgs))
+		base.Fatalf("empty config list")
 	}

 	pbConfig, err := core.LoadConfig("auto", unnamedArgs)
 	if err != nil {
-		base.Fatalf("failed to load config: %s", err)
+		base.Fatalf(err.Error())
 	}

 	if optDump {
--- a/proxy/freedom/freedom.go
+++ b/proxy/freedom/freedom.go
@@ -4,12 +4,12 @@ import (
 	"context"
 	"crypto/rand"
 	"io"
+	"math/big"
 	"time"

 	"github.com/pires/go-proxyproto"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
-	"github.com/xtls/xray-core/common/crypto"
 	"github.com/xtls/xray-core/common/dice"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
@@ -414,7 +414,7 @@ func (w *NoisePacketWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
 				noise = n.Packet
 			} else {
 				//Random noise
-				noise, err = GenerateRandomBytes(crypto.RandBetween(int64(n.LengthMin),
+				noise, err = GenerateRandomBytes(randBetween(int64(n.LengthMin),
 					int64(n.LengthMax)))
 			}
 			if err != nil {
@@ -423,7 +423,7 @@ func (w *NoisePacketWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
 			w.Writer.WriteMultiBuffer(buf.MultiBuffer{buf.FromBytes(noise)})

 			if n.DelayMin != 0 || n.DelayMax != 0 {
-				time.Sleep(time.Duration(crypto.RandBetween(int64(n.DelayMin), int64(n.DelayMax))) * time.Millisecond)
+				time.Sleep(time.Duration(randBetween(int64(n.DelayMin), int64(n.DelayMax))) * time.Millisecond)
 			}
 		}

@@ -452,7 +452,7 @@ func (f *FragmentWriter) Write(b []byte) (int, error) {
 		buf := make([]byte, 1024)
 		var hello []byte
 		for from := 0; ; {
-			to := from + int(crypto.RandBetween(int64(f.fragment.LengthMin), int64(f.fragment.LengthMax)))
+			to := from + int(randBetween(int64(f.fragment.LengthMin), int64(f.fragment.LengthMax)))
 			if to > len(data) {
 				to = len(data)
 			}
@@ -466,7 +466,7 @@ func (f *FragmentWriter) Write(b []byte) (int, error) {
 				hello = append(hello, buf[:5+l]...)
 			} else {
 				_, err := f.writer.Write(buf[:5+l])
-				time.Sleep(time.Duration(crypto.RandBetween(int64(f.fragment.IntervalMin), int64(f.fragment.IntervalMax))) * time.Millisecond)
+				time.Sleep(time.Duration(randBetween(int64(f.fragment.IntervalMin), int64(f.fragment.IntervalMax))) * time.Millisecond)
 				if err != nil {
 					return 0, err
 				}
@@ -493,13 +493,13 @@ func (f *FragmentWriter) Write(b []byte) (int, error) {
 		return f.writer.Write(b)
 	}
 	for from := 0; ; {
-		to := from + int(crypto.RandBetween(int64(f.fragment.LengthMin), int64(f.fragment.LengthMax)))
+		to := from + int(randBetween(int64(f.fragment.LengthMin), int64(f.fragment.LengthMax)))
 		if to > len(b) {
 			to = len(b)
 		}
 		n, err := f.writer.Write(b[from:to])
 		from += n
-		time.Sleep(time.Duration(crypto.RandBetween(int64(f.fragment.IntervalMin), int64(f.fragment.IntervalMax))) * time.Millisecond)
+		time.Sleep(time.Duration(randBetween(int64(f.fragment.IntervalMin), int64(f.fragment.IntervalMax))) * time.Millisecond)
 		if err != nil {
 			return from, err
 		}
@@ -509,6 +509,14 @@ func (f *FragmentWriter) Write(b []byte) (int, error) {
 	}
 }

+// stolen from github.com/xtls/xray-core/transport/internet/reality
+func randBetween(left int64, right int64) int64 {
+	if left == right {
+		return left
+	}
+	bigInt, _ := rand.Int(rand.Reader, big.NewInt(right-left))
+	return left + bigInt.Int64()
+}
 func GenerateRandomBytes(n int64) ([]byte, error) {
 	b := make([]byte, n)
 	_, err := rand.Read(b)
--- a/transport/internet/config.pb.go
+++ b/transport/internet/config.pb.go
@@ -95,67 +95,6 @@ func (DomainStrategy) EnumDescriptor() ([]byte, []int) {
 	return file_transport_internet_config_proto_rawDescGZIP(), []int{0}
 }

-type AddressPortStrategy int32
-
-const (
-	AddressPortStrategy_None              AddressPortStrategy = 0
-	AddressPortStrategy_SrvPortOnly       AddressPortStrategy = 1
-	AddressPortStrategy_SrvAddressOnly    AddressPortStrategy = 2
-	AddressPortStrategy_SrvPortAndAddress AddressPortStrategy = 3
-	AddressPortStrategy_TxtPortOnly       AddressPortStrategy = 4
-	AddressPortStrategy_TxtAddressOnly    AddressPortStrategy = 5
-	AddressPortStrategy_TxtPortAndAddress AddressPortStrategy = 6
-)
-
-// Enum value maps for AddressPortStrategy.
-var (
-	AddressPortStrategy_name = map[int32]string{
-		0: "None",
-		1: "SrvPortOnly",
-		2: "SrvAddressOnly",
-		3: "SrvPortAndAddress",
-		4: "TxtPortOnly",
-		5: "TxtAddressOnly",
-		6: "TxtPortAndAddress",
-	}
-	AddressPortStrategy_value = map[string]int32{
-		"None":              0,
-		"SrvPortOnly":       1,
-		"SrvAddressOnly":    2,
-		"SrvPortAndAddress": 3,
-		"TxtPortOnly":       4,
-		"TxtAddressOnly":    5,
-		"TxtPortAndAddress": 6,
-	}
-)
-
-func (x AddressPortStrategy) Enum() *AddressPortStrategy {
-	p := new(AddressPortStrategy)
-	*p = x
-	return p
-}
-
-func (x AddressPortStrategy) String() string {
-	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
-}
-
-func (AddressPortStrategy) Descriptor() protoreflect.EnumDescriptor {
-	return file_transport_internet_config_proto_enumTypes[1].Descriptor()
-}
-
-func (AddressPortStrategy) Type() protoreflect.EnumType {
-	return &file_transport_internet_config_proto_enumTypes[1]
-}
-
-func (x AddressPortStrategy) Number() protoreflect.EnumNumber {
-	return protoreflect.EnumNumber(x)
-}
-
-// Deprecated: Use AddressPortStrategy.Descriptor instead.
-func (AddressPortStrategy) EnumDescriptor() ([]byte, []int) {
-	return file_transport_internet_config_proto_rawDescGZIP(), []int{1}
-}
-
 type SocketConfig_TProxyMode int32

 const (
@@ -192,11 +131,11 @@ func (x SocketConfig_TProxyMode) String() string {
 }

 func (SocketConfig_TProxyMode) Descriptor() protoreflect.EnumDescriptor {
-	return file_transport_internet_config_proto_enumTypes[2].Descriptor()
+	return file_transport_internet_config_proto_enumTypes[1].Descriptor()
 }

 func (SocketConfig_TProxyMode) Type() protoreflect.EnumType {
-	return &file_transport_internet_config_proto_enumTypes[2]
+	return &file_transport_internet_config_proto_enumTypes[1]
 }

 func (x SocketConfig_TProxyMode) Number() protoreflect.EnumNumber {
@@ -495,24 +434,23 @@ type SocketConfig struct {
 	Tproxy SocketConfig_TProxyMode `protobuf:"varint,3,opt,name=tproxy,proto3,enum=xray.transport.internet.SocketConfig_TProxyMode" json:"tproxy,omitempty"`
 	// ReceiveOriginalDestAddress is for enabling IP_RECVORIGDSTADDR socket
 	// option. This option is for UDP only.
-	ReceiveOriginalDestAddress bool                `protobuf:"varint,4,opt,name=receive_original_dest_address,json=receiveOriginalDestAddress,proto3" json:"receive_original_dest_address,omitempty"`
-	BindAddress                []byte              `protobuf:"bytes,5,opt,name=bind_address,json=bindAddress,proto3" json:"bind_address,omitempty"`
-	BindPort                   uint32              `protobuf:"varint,6,opt,name=bind_port,json=bindPort,proto3" json:"bind_port,omitempty"`
-	AcceptProxyProtocol        bool                `protobuf:"varint,7,opt,name=accept_proxy_protocol,json=acceptProxyProtocol,proto3" json:"accept_proxy_protocol,omitempty"`
-	DomainStrategy             DomainStrategy      `protobuf:"varint,8,opt,name=domain_strategy,json=domainStrategy,proto3,enum=xray.transport.internet.DomainStrategy" json:"domain_strategy,omitempty"`
-	DialerProxy                string              `protobuf:"bytes,9,opt,name=dialer_proxy,json=dialerProxy,proto3" json:"dialer_proxy,omitempty"`
-	TcpKeepAliveInterval       int32               `protobuf:"varint,10,opt,name=tcp_keep_alive_interval,json=tcpKeepAliveInterval,proto3" json:"tcp_keep_alive_interval,omitempty"`
-	TcpKeepAliveIdle           int32               `protobuf:"varint,11,opt,name=tcp_keep_alive_idle,json=tcpKeepAliveIdle,proto3" json:"tcp_keep_alive_idle,omitempty"`
-	TcpCongestion              string              `protobuf:"bytes,12,opt,name=tcp_congestion,json=tcpCongestion,proto3" json:"tcp_congestion,omitempty"`
-	Interface                  string              `protobuf:"bytes,13,opt,name=interface,proto3" json:"interface,omitempty"`
-	V6Only                     bool                `protobuf:"varint,14,opt,name=v6only,proto3" json:"v6only,omitempty"`
-	TcpWindowClamp             int32               `protobuf:"varint,15,opt,name=tcp_window_clamp,json=tcpWindowClamp,proto3" json:"tcp_window_clamp,omitempty"`
-	TcpUserTimeout             int32               `protobuf:"varint,16,opt,name=tcp_user_timeout,json=tcpUserTimeout,proto3" json:"tcp_user_timeout,omitempty"`
-	TcpMaxSeg                  int32               `protobuf:"varint,17,opt,name=tcp_max_seg,json=tcpMaxSeg,proto3" json:"tcp_max_seg,omitempty"`
-	Penetrate                  bool                `protobuf:"varint,18,opt,name=penetrate,proto3" json:"penetrate,omitempty"`
-	TcpMptcp                   bool                `protobuf:"varint,19,opt,name=tcp_mptcp,json=tcpMptcp,proto3" json:"tcp_mptcp,omitempty"`
-	CustomSockopt              []*CustomSockopt    `protobuf:"bytes,20,rep,name=customSockopt,proto3" json:"customSockopt,omitempty"`
-	AddressPortStrategy        AddressPortStrategy `protobuf:"varint,21,opt,name=address_port_strategy,json=addressPortStrategy,proto3,enum=xray.transport.internet.AddressPortStrategy" json:"address_port_strategy,omitempty"`
+	ReceiveOriginalDestAddress bool             `protobuf:"varint,4,opt,name=receive_original_dest_address,json=receiveOriginalDestAddress,proto3" json:"receive_original_dest_address,omitempty"`
+	BindAddress                []byte           `protobuf:"bytes,5,opt,name=bind_address,json=bindAddress,proto3" json:"bind_address,omitempty"`
+	BindPort                   uint32           `protobuf:"varint,6,opt,name=bind_port,json=bindPort,proto3" json:"bind_port,omitempty"`
+	AcceptProxyProtocol        bool             `protobuf:"varint,7,opt,name=accept_proxy_protocol,json=acceptProxyProtocol,proto3" json:"accept_proxy_protocol,omitempty"`
+	DomainStrategy             DomainStrategy   `protobuf:"varint,8,opt,name=domain_strategy,json=domainStrategy,proto3,enum=xray.transport.internet.DomainStrategy" json:"domain_strategy,omitempty"`
+	DialerProxy                string           `protobuf:"bytes,9,opt,name=dialer_proxy,json=dialerProxy,proto3" json:"dialer_proxy,omitempty"`
+	TcpKeepAliveInterval       int32            `protobuf:"varint,10,opt,name=tcp_keep_alive_interval,json=tcpKeepAliveInterval,proto3" json:"tcp_keep_alive_interval,omitempty"`
+	TcpKeepAliveIdle           int32            `protobuf:"varint,11,opt,name=tcp_keep_alive_idle,json=tcpKeepAliveIdle,proto3" json:"tcp_keep_alive_idle,omitempty"`
+	TcpCongestion              string           `protobuf:"bytes,12,opt,name=tcp_congestion,json=tcpCongestion,proto3" json:"tcp_congestion,omitempty"`
+	Interface                  string           `protobuf:"bytes,13,opt,name=interface,proto3" json:"interface,omitempty"`
+	V6Only                     bool             `protobuf:"varint,14,opt,name=v6only,proto3" json:"v6only,omitempty"`
+	TcpWindowClamp             int32            `protobuf:"varint,15,opt,name=tcp_window_clamp,json=tcpWindowClamp,proto3" json:"tcp_window_clamp,omitempty"`
+	TcpUserTimeout             int32            `protobuf:"varint,16,opt,name=tcp_user_timeout,json=tcpUserTimeout,proto3" json:"tcp_user_timeout,omitempty"`
+	TcpMaxSeg                  int32            `protobuf:"varint,17,opt,name=tcp_max_seg,json=tcpMaxSeg,proto3" json:"tcp_max_seg,omitempty"`
+	Penetrate                  bool             `protobuf:"varint,18,opt,name=penetrate,proto3" json:"penetrate,omitempty"`
+	TcpMptcp                   bool             `protobuf:"varint,19,opt,name=tcp_mptcp,json=tcpMptcp,proto3" json:"tcp_mptcp,omitempty"`
+	CustomSockopt              []*CustomSockopt `protobuf:"bytes,20,rep,name=customSockopt,proto3" json:"customSockopt,omitempty"`
 }

 func (x *SocketConfig) Reset() {
@@ -685,13 +623,6 @@ func (x *SocketConfig) GetCustomSockopt() []*CustomSockopt {
 	return nil
 }

-func (x *SocketConfig) GetAddressPortStrategy() AddressPortStrategy {
-	if x != nil {
-		return x.AddressPortStrategy
-	}
-	return AddressPortStrategy_None
-}
-
 var File_transport_internet_config_proto protoreflect.FileDescriptor

 var file_transport_internet_config_proto_rawDesc = []byte{
@@ -747,7 +678,7 @@ var file_transport_internet_config_proto_rawDesc = []byte{
 	0x28, 0x09, 0x52, 0x03, 0x6f, 0x70, 0x74, 0x12, 0x14, 0x0a, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65,
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 	0x69, 0x67, 0x12, 0x12, 0x0a, 0x04, 0x6d, 0x61, 0x72, 0x6b, 0x18, 0x01, 0x20, 0x01, 0x28, 0x05,
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@@ -801,44 +732,28 @@ var file_transport_internet_config_proto_rawDesc = []byte{
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+	0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72,
+	0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72,
+	0x74, 0x2f, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0xaa, 0x02, 0x17, 0x58, 0x72, 0x61,
+	0x79, 0x2e, 0x54, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2e, 0x49, 0x6e, 0x74, 0x65,
+	0x72, 0x6e, 0x65, 0x74, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }

 var (
@@ -853,35 +768,33 @@ func file_transport_internet_config_proto_rawDescGZIP() []byte {
 	return file_transport_internet_config_proto_rawDescData
 }

-var file_transport_internet_config_proto_enumTypes = make([]protoimpl.EnumInfo, 3)
+var file_transport_internet_config_proto_enumTypes = make([]protoimpl.EnumInfo, 2)
 var file_transport_internet_config_proto_msgTypes = make([]protoimpl.MessageInfo, 5)
 var file_transport_internet_config_proto_goTypes = []any{
 	(DomainStrategy)(0),          // 0: xray.transport.internet.DomainStrategy
-	(AddressPortStrategy)(0),     // 1: xray.transport.internet.AddressPortStrategy
-	(SocketConfig_TProxyMode)(0), // 2: xray.transport.internet.SocketConfig.TProxyMode
-	(*TransportConfig)(nil),      // 3: xray.transport.internet.TransportConfig
-	(*StreamConfig)(nil),         // 4: xray.transport.internet.StreamConfig
-	(*ProxyConfig)(nil),          // 5: xray.transport.internet.ProxyConfig
-	(*CustomSockopt)(nil),        // 6: xray.transport.internet.CustomSockopt
-	(*SocketConfig)(nil),         // 7: xray.transport.internet.SocketConfig
-	(*serial.TypedMessage)(nil),  // 8: xray.common.serial.TypedMessage
-	(*net.IPOrDomain)(nil),       // 9: xray.common.net.IPOrDomain
+	(SocketConfig_TProxyMode)(0), // 1: xray.transport.internet.SocketConfig.TProxyMode
+	(*TransportConfig)(nil),      // 2: xray.transport.internet.TransportConfig
+	(*StreamConfig)(nil),         // 3: xray.transport.internet.StreamConfig
+	(*ProxyConfig)(nil),          // 4: xray.transport.internet.ProxyConfig
+	(*CustomSockopt)(nil),        // 5: xray.transport.internet.CustomSockopt
+	(*SocketConfig)(nil),         // 6: xray.transport.internet.SocketConfig
+	(*serial.TypedMessage)(nil),  // 7: xray.common.serial.TypedMessage
+	(*net.IPOrDomain)(nil),       // 8: xray.common.net.IPOrDomain
 }
 var file_transport_internet_config_proto_depIdxs = []int32{
-	8, // 0: xray.transport.internet.TransportConfig.settings:type_name -> xray.common.serial.TypedMessage
-	9, // 1: xray.transport.internet.StreamConfig.address:type_name -> xray.common.net.IPOrDomain
-	3, // 2: xray.transport.internet.StreamConfig.transport_settings:type_name -> xray.transport.internet.TransportConfig
-	8, // 3: xray.transport.internet.StreamConfig.security_settings:type_name -> xray.common.serial.TypedMessage
-	7, // 4: xray.transport.internet.StreamConfig.socket_settings:type_name -> xray.transport.internet.SocketConfig
-	2, // 5: xray.transport.internet.SocketConfig.tproxy:type_name -> xray.transport.internet.SocketConfig.TProxyMode
+	7, // 0: xray.transport.internet.TransportConfig.settings:type_name -> xray.common.serial.TypedMessage
+	8, // 1: xray.transport.internet.StreamConfig.address:type_name -> xray.common.net.IPOrDomain
+	2, // 2: xray.transport.internet.StreamConfig.transport_settings:type_name -> xray.transport.internet.TransportConfig
+	7, // 3: xray.transport.internet.StreamConfig.security_settings:type_name -> xray.common.serial.TypedMessage
+	6, // 4: xray.transport.internet.StreamConfig.socket_settings:type_name -> xray.transport.internet.SocketConfig
+	1, // 5: xray.transport.internet.SocketConfig.tproxy:type_name -> xray.transport.internet.SocketConfig.TProxyMode
 	0, // 6: xray.transport.internet.SocketConfig.domain_strategy:type_name -> xray.transport.internet.DomainStrategy
-	6, // 7: xray.transport.internet.SocketConfig.customSockopt:type_name -> xray.transport.internet.CustomSockopt
-	1, // 8: xray.transport.internet.SocketConfig.address_port_strategy:type_name -> xray.transport.internet.AddressPortStrategy
-	9, // [9:9] is the sub-list for method output_type
-	9, // [9:9] is the sub-list for method input_type
-	9, // [9:9] is the sub-list for extension type_name
-	9, // [9:9] is the sub-list for extension extendee
-	0, // [0:9] is the sub-list for field type_name
+	5, // 7: xray.transport.internet.SocketConfig.customSockopt:type_name -> xray.transport.internet.CustomSockopt
+	8, // [8:8] is the sub-list for method output_type
+	8, // [8:8] is the sub-list for method input_type
+	8, // [8:8] is the sub-list for extension type_name
+	8, // [8:8] is the sub-list for extension extendee
+	0, // [0:8] is the sub-list for field type_name
 }

 func init() { file_transport_internet_config_proto_init() }
@@ -894,7 +807,7 @@ func file_transport_internet_config_proto_init() {
 		File: protoimpl.DescBuilder{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_transport_internet_config_proto_rawDesc,
-			NumEnums:      3,
+			NumEnums:      2,
 			NumMessages:   5,
 			NumExtensions: 0,
 			NumServices:   0,
--- a/transport/internet/config.proto
+++ b/transport/internet/config.proto
@@ -23,16 +23,6 @@ enum DomainStrategy {
  FORCE_IP64 = 10;
 }

-enum AddressPortStrategy {
-  None = 0;
-  SrvPortOnly = 1;
-  SrvAddressOnly = 2;
-  SrvPortAndAddress = 3;
-  TxtPortOnly = 4;
-  TxtAddressOnly = 5;
-  TxtPortAndAddress = 6;
-}
-
 message TransportConfig {
  // Transport protocol name.
  string protocol_name = 3;
@@ -126,6 +116,4 @@ message SocketConfig {
  bool tcp_mptcp = 19;

  repeated CustomSockopt customSockopt = 20;
-
-  AddressPortStrategy address_port_strategy = 21;
 }
--- a/transport/internet/dialer.go
+++ b/transport/internet/dialer.go
@@ -2,9 +2,6 @@ package internet

 import (
 	"context"
-	"fmt"
-	gonet "net"
-	"strings"

 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/dice"
@@ -143,93 +140,6 @@ func redirect(ctx context.Context, dst net.Destination, obt string) net.Conn {
 	return nil
 }

-func checkAddressPortStrategy(ctx context.Context, dest net.Destination, sockopt *SocketConfig) (*net.Destination, error) {
-	if sockopt.AddressPortStrategy == AddressPortStrategy_None {
-		return nil, nil
-	}
-	newDest := dest
-	var OverridePort, OverrideAddress bool
-	var OverrideBy string
-	switch sockopt.AddressPortStrategy {
-	case AddressPortStrategy_SrvPortOnly:
-		OverridePort = true
-		OverrideAddress = false
-		OverrideBy = "srv"
-	case AddressPortStrategy_SrvAddressOnly:
-		OverridePort = false
-		OverrideAddress = true
-		OverrideBy = "srv"
-	case AddressPortStrategy_SrvPortAndAddress:
-		OverridePort = true
-		OverrideAddress = true
-		OverrideBy = "srv"
-	case AddressPortStrategy_TxtPortOnly:
-		OverridePort = true
-		OverrideAddress = false
-		OverrideBy = "txt"
-	case AddressPortStrategy_TxtAddressOnly:
-		OverridePort = false
-		OverrideAddress = true
-		OverrideBy = "txt"
-	case AddressPortStrategy_TxtPortAndAddress:
-		OverridePort = true
-		OverrideAddress = true
-		OverrideBy = "txt"
-	default:
-		return nil, errors.New("unknown AddressPortStrategy")
-	}
-
-	if !dest.Address.Family().IsDomain() {
-		return nil, nil
-	}
-
-	if OverrideBy == "srv" {
-		errors.LogDebug(ctx, "query SRV record for "+dest.Address.String())
-		parts := strings.SplitN(dest.Address.String(), ".", 3)
-		if len(parts) != 3 {
-			return nil, errors.New("invalid address format", dest.Address.String())
-		}
-		_, srvRecords, err := gonet.DefaultResolver.LookupSRV(context.Background(), parts[0][1:], parts[1][1:], parts[2])
-		if err != nil {
-			return nil, errors.New("failed to lookup SRV record").Base(err)
-		}
-		errors.LogDebug(ctx, "SRV record: "+fmt.Sprintf("addr=%s, port=%d, priority=%d, weight=%d", srvRecords[0].Target, srvRecords[0].Port, srvRecords[0].Priority, srvRecords[0].Weight))
-		if OverridePort {
-			newDest.Port = net.Port(srvRecords[0].Port)
-		}
-		if OverrideAddress {
-			newDest.Address = net.ParseAddress(srvRecords[0].Target)
-		}
-		return &newDest, nil
-	}
-	if OverrideBy == "txt" {
-		errors.LogDebug(ctx, "query TXT record for "+dest.Address.String())
-		txtRecords, err := gonet.DefaultResolver.LookupTXT(ctx, dest.Address.String())
-		if err != nil {
-			errors.LogError(ctx, "failed to lookup SRV record: "+err.Error())
-			return nil, errors.New("failed to lookup SRV record").Base(err)
-		}
-		for _, txtRecord := range txtRecords {
-			errors.LogDebug(ctx, "TXT record: "+txtRecord)
-			addr_s, port_s, _ := net.SplitHostPort(string(txtRecord))
-			addr := net.ParseAddress(addr_s)
-			port, err := net.PortFromString(port_s)
-			if err != nil {
-				continue
-			}
-
-			if OverridePort {
-				newDest.Port = port
-			}
-			if OverrideAddress {
-				newDest.Address = addr
-			}
-			return &newDest, nil
-		}
-	}
-	return nil, nil
-}
-
 // DialSystem calls system dialer to create a network connection.
 func DialSystem(ctx context.Context, dest net.Destination, sockopt *SocketConfig) (net.Conn, error) {
 	var src net.Address
@@ -242,11 +152,6 @@ func DialSystem(ctx context.Context, dest net.Destination, sockopt *SocketConfig
 		return effectiveSystemDialer.Dial(ctx, src, dest, sockopt)
 	}

-	if newDest, err := checkAddressPortStrategy(ctx, dest, sockopt); err == nil && newDest != nil {
-		errors.LogInfo(ctx, "replace destination with "+newDest.String())
-		dest = *newDest
-	}
-
 	if canLookupIP(ctx, dest, sockopt) {
 		ips, err := lookupIP(dest.Address.String(), sockopt.DomainStrategy, src)
 		if err == nil && len(ips) > 0 {
--- a/transport/internet/reality/reality.go
+++ b/transport/internet/reality/reality.go
@@ -8,6 +8,7 @@ import (
 	"crypto/ecdh"
 	"crypto/ed25519"
 	"crypto/hmac"
+	"crypto/rand"
 	"crypto/sha256"
 	"crypto/sha512"
 	gotls "crypto/tls"
@@ -15,6 +16,7 @@ import (
 	"encoding/binary"
 	"fmt"
 	"io"
+	"math/big"
 	"net/http"
 	"reflect"
 	"regexp"
@@ -25,7 +27,6 @@ import (

 	utls "github.com/refraction-networking/utls"
 	"github.com/xtls/reality"
-	"github.com/xtls/xray-core/common/crypto"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/core"
@@ -212,13 +213,13 @@ func UClient(c net.Conn, config *Config, ctx context.Context, dest net.Destinati
 				}
 				times := 1
 				if !first {
-					times = int(crypto.RandBetween(config.SpiderY[4], config.SpiderY[5]))
+					times = int(randBetween(config.SpiderY[4], config.SpiderY[5]))
 				}
 				for j := 0; j < times; j++ {
 					if !first && j == 0 {
 						req.Header.Set("Referer", firstURL)
 					}
-					req.AddCookie(&http.Cookie{Name: "padding", Value: strings.Repeat("0", int(crypto.RandBetween(config.SpiderY[0], config.SpiderY[1])))})
+					req.AddCookie(&http.Cookie{Name: "padding", Value: strings.Repeat("0", int(randBetween(config.SpiderY[0], config.SpiderY[1])))})
 					if resp, err = client.Do(req); err != nil {
 						break
 					}
@@ -242,18 +243,18 @@ func UClient(c net.Conn, config *Config, ctx context.Context, dest net.Destinati
 					}
 					maps.Unlock()
 					if !first {
-						time.Sleep(time.Duration(crypto.RandBetween(config.SpiderY[6], config.SpiderY[7])) * time.Millisecond) // interval
+						time.Sleep(time.Duration(randBetween(config.SpiderY[6], config.SpiderY[7])) * time.Millisecond) // interval
 					}
 				}
 			}
 			get(true)
-			concurrency := int(crypto.RandBetween(config.SpiderY[2], config.SpiderY[3]))
+			concurrency := int(randBetween(config.SpiderY[2], config.SpiderY[3]))
 			for i := 0; i < concurrency; i++ {
 				go get(false)
 			}
 			// Do not close the connection
 		}()
-		time.Sleep(time.Duration(crypto.RandBetween(config.SpiderY[8], config.SpiderY[9])) * time.Millisecond) // return
+		time.Sleep(time.Duration(randBetween(config.SpiderY[8], config.SpiderY[9])) * time.Millisecond) // return
 		return nil, errors.New("REALITY: processed invalid connection").AtWarning()
 	}
 	return uConn, nil
@@ -270,7 +271,7 @@ var maps struct {
 }

 func getPathLocked(paths map[string]struct{}) string {
-	stopAt := int(crypto.RandBetween(0, int64(len(paths)-1)))
+	stopAt := int(randBetween(0, int64(len(paths)-1)))
 	i := 0
 	for s := range paths {
 		if i == stopAt {
@@ -280,3 +281,11 @@ func getPathLocked(paths map[string]struct{}) string {
 	}
 	return "/"
 }
+
+func randBetween(left int64, right int64) int64 {
+	if left == right {
+		return left
+	}
+	bigInt, _ := rand.Int(rand.Reader, big.NewInt(right-left))
+	return left + bigInt.Int64()
+}
--- a/transport/internet/splithttp/config.go
+++ b/transport/internet/splithttp/config.go
@@ -1,12 +1,13 @@
 package splithttp

 import (
+	"crypto/rand"
+	"math/big"
 	"net/http"
 	"net/url"
 	"strings"

 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/crypto"
 	"github.com/xtls/xray-core/transport/internet"
 )

@@ -183,5 +184,9 @@ func init() {
 }

 func (c RangeConfig) rand() int32 {
-	return int32(crypto.RandBetween(int64(c.From), int64(c.To)))
+	if c.From == c.To {
+		return c.From
+	}
+	bigInt, _ := rand.Int(rand.Reader, big.NewInt(int64(c.To-c.From)))
+	return c.From + int32(bigInt.Int64())
 }
--- a/transport/internet/splithttp/dialer.go
+++ b/transport/internet/splithttp/dialer.go
@@ -30,6 +30,16 @@ import (
 	"golang.org/x/net/http2"
 )

+// defines the maximum time an idle TCP session can survive in the tunnel, so
+// it should be consistent across HTTP versions and with other transports.
+const connIdleTimeout = 300 * time.Second
+
+// consistent with quic-go
+const quicgoH3KeepAlivePeriod = 10 * time.Second
+
+// consistent with chrome
+const chromeH2KeepAlivePeriod = 45 * time.Second
+
 type dialerConf struct {
 	net.Destination
 	*internet.MemoryStreamConfig
@@ -144,13 +154,13 @@ func createHTTPClient(dest net.Destination, streamSettings *internet.MemoryStrea

 	if httpVersion == "3" {
 		if keepAlivePeriod == 0 {
-			keepAlivePeriod = net.QuicgoH3KeepAlivePeriod
+			keepAlivePeriod = quicgoH3KeepAlivePeriod
 		}
 		if keepAlivePeriod < 0 {
 			keepAlivePeriod = 0
 		}
 		quicConfig := &quic.Config{
-			MaxIdleTimeout: net.ConnIdleTimeout,
+			MaxIdleTimeout: connIdleTimeout,

 			// these two are defaults of quic-go/http3. the default of quic-go (no
 			// http3) is different, so it is hardcoded here for clarity.
@@ -158,7 +168,7 @@ func createHTTPClient(dest net.Destination, streamSettings *internet.MemoryStrea
 			MaxIncomingStreams: -1,
 			KeepAlivePeriod:    keepAlivePeriod,
 		}
-		transport = &http3.Transport{
+		transport = &http3.RoundTripper{
 			QUICConfig:      quicConfig,
 			TLSClientConfig: gotlsConfig,
 			Dial: func(ctx context.Context, addr string, tlsCfg *gotls.Config, cfg *quic.Config) (quic.EarlyConnection, error) {
@@ -188,7 +198,7 @@ func createHTTPClient(dest net.Destination, streamSettings *internet.MemoryStrea
 						return nil, err
 					}
 				default:
-					udpConn = &internet.FakePacketConn{Conn: c}
+					udpConn = &internet.FakePacketConn{c}
 					udpAddr, err = net.ResolveUDPAddr("udp", c.RemoteAddr().String())
 					if err != nil {
 						return nil, err
@@ -200,7 +210,7 @@ func createHTTPClient(dest net.Destination, streamSettings *internet.MemoryStrea
 		}
 	} else if httpVersion == "2" {
 		if keepAlivePeriod == 0 {
-			keepAlivePeriod = net.ChromeH2KeepAlivePeriod
+			keepAlivePeriod = chromeH2KeepAlivePeriod
 		}
 		if keepAlivePeriod < 0 {
 			keepAlivePeriod = 0
@@ -209,7 +219,7 @@ func createHTTPClient(dest net.Destination, streamSettings *internet.MemoryStrea
 			DialTLSContext: func(ctxInner context.Context, network string, addr string, cfg *gotls.Config) (net.Conn, error) {
 				return dialContext(ctxInner)
 			},
-			IdleConnTimeout: net.ConnIdleTimeout,
+			IdleConnTimeout: connIdleTimeout,
 			ReadIdleTimeout: keepAlivePeriod,
 		}
 	} else {
@@ -220,7 +230,7 @@ func createHTTPClient(dest net.Destination, streamSettings *internet.MemoryStrea
 		transport = &http.Transport{
 			DialTLSContext:  httpDialContext,
 			DialContext:     httpDialContext,
-			IdleConnTimeout: net.ConnIdleTimeout,
+			IdleConnTimeout: connIdleTimeout,
 			// chunked transfer download with KeepAlives is buggy with
 			// http.Client and our custom dial context.
 			DisableKeepAlives: true,
--- a/transport/internet/splithttp/hub.go
+++ b/transport/internet/splithttp/hub.go
@@ -24,6 +24,8 @@ import (
 	"github.com/xtls/xray-core/transport/internet/reality"
 	"github.com/xtls/xray-core/transport/internet/stat"
 	"github.com/xtls/xray-core/transport/internet/tls"
+	"golang.org/x/net/http2"
+	"golang.org/x/net/http2/h2c"
 )

 type requestHandler struct {
@@ -424,15 +426,11 @@ func ListenXH(ctx context.Context, address net.Address, port net.Port, streamSet

 		handler.localAddr = l.listener.Addr()

-		// server can handle both plaintext HTTP/1.1 and h2c
-		protocols := new(http.Protocols)
-		protocols.SetHTTP1(true)
-		protocols.SetUnencryptedHTTP2(true)
+		// h2cHandler can handle both plaintext HTTP/1.1 and h2c
 		l.server = http.Server{
-			Handler:           handler,
+			Handler:           h2c.NewHandler(handler, &http2.Server{}),
 			ReadHeaderTimeout: time.Second * 4,
 			MaxHeaderBytes:    8192,
-			Protocols:         protocols,
 		}
 		go func() {
 			if err := l.server.Serve(l.listener); err != nil {
--- a/transport/internet/splithttp/splithttp_test.go
+++ b/transport/internet/splithttp/splithttp_test.go
@@ -3,8 +3,10 @@ package splithttp_test
 import (
 	"context"
 	"crypto/rand"
+	gotls "crypto/tls"
 	"fmt"
 	"io"
+	gonet "net"
 	"net/http"
 	"runtime"
 	"testing"
@@ -21,6 +23,7 @@ import (
 	. "github.com/xtls/xray-core/transport/internet/splithttp"
 	"github.com/xtls/xray-core/transport/internet/stat"
 	"github.com/xtls/xray-core/transport/internet/tls"
+	"golang.org/x/net/http2"
 )

 func Test_ListenXHAndDial(t *testing.T) {
@@ -198,11 +201,17 @@ func Test_ListenXHAndDial_H2C(t *testing.T) {
 	common.Must(err)
 	defer listen.Close()

-	protocols := new(http.Protocols)
-	protocols.SetUnencryptedHTTP2(true)
 	client := http.Client{
-		Transport: &http.Transport{
-			Protocols: protocols,
+		Transport: &http2.Transport{
+			// So http2.Transport doesn't complain the URL scheme isn't 'https'
+			AllowHTTP: true,
+			// even with AllowHTTP, http2.Transport will attempt to establish
+			// the connection using DialTLSContext. Disable TLS with custom
+			// dial context.
+			DialTLSContext: func(ctx context.Context, network, addr string, cfg *gotls.Config) (gonet.Conn, error) {
+				var d gonet.Dialer
+				return d.DialContext(ctx, network, addr)
+			},
 		},
 	}

--- a/transport/internet/tls/config.pb.go
+++ b/transport/internet/tls/config.pb.go
@@ -207,7 +207,7 @@ type Config struct {
 	// @Critical
 	PinnedPeerCertificateChainSha256 [][]byte `protobuf:"bytes,13,rep,name=pinned_peer_certificate_chain_sha256,json=pinnedPeerCertificateChainSha256,proto3" json:"pinned_peer_certificate_chain_sha256,omitempty"`
 	// @Document Some certificate public key sha256 hashes.
-	// @Document After normal validation (required), if one of certs in verified chain matches one of these values, the connection will be eventually accepted.
+	// @Document After normal validation (required), if the verified cert's public key hash does not match any of these values, the connection will be aborted.
 	// @Critical
 	PinnedPeerCertificatePublicKeySha256 [][]byte `protobuf:"bytes,14,rep,name=pinned_peer_certificate_public_key_sha256,json=pinnedPeerCertificatePublicKeySha256,proto3" json:"pinned_peer_certificate_public_key_sha256,omitempty"`
 	MasterKeyLog                         string   `protobuf:"bytes,15,opt,name=master_key_log,json=masterKeyLog,proto3" json:"master_key_log,omitempty"`
--- a/transport/internet/tls/config.proto
+++ b/transport/internet/tls/config.proto
@@ -76,7 +76,7 @@ message Config {
  repeated bytes pinned_peer_certificate_chain_sha256 = 13;

  /* @Document Some certificate public key sha256 hashes.
-     @Document After normal validation (required), if one of certs in verified chain matches one of these values, the connection will be eventually accepted.
+     @Document After normal validation (required), if the verified cert's public key hash does not match any of these values, the connection will be aborted.
     @Critical
  */
  repeated bytes pinned_peer_certificate_public_key_sha256 = 14;
--- a/transport/internet/tls/tls.go
+++ b/transport/internet/tls/tls.go
@@ -151,14 +151,10 @@ func init() {
 	weights := utls.DefaultWeights
 	weights.TLSVersMax_Set_VersionTLS13 = 1
 	weights.FirstKeyShare_Set_CurveP256 = 0
-	randomized := utls.HelloRandomizedALPN
+	randomized := utls.HelloRandomized
 	randomized.Seed, _ = utls.NewPRNGSeed()
 	randomized.Weights = &weights
-	randomizednoalpn := utls.HelloRandomizedNoALPN
-	randomizednoalpn.Seed, _ = utls.NewPRNGSeed()
-	randomizednoalpn.Weights = &weights
 	PresetFingerprints["randomized"] = &randomized
-	PresetFingerprints["randomizednoalpn"] = &randomizednoalpn
 }

 func GetFingerprint(name string) (fingerprint *utls.ClientHelloID) {
@@ -179,18 +175,17 @@ func GetFingerprint(name string) (fingerprint *utls.ClientHelloID) {

 var PresetFingerprints = map[string]*utls.ClientHelloID{
 	// Recommended preset options in GUI clients
-	"chrome":           &utls.HelloChrome_Auto,
-	"firefox":          &utls.HelloFirefox_Auto,
-	"safari":           &utls.HelloSafari_Auto,
-	"ios":              &utls.HelloIOS_Auto,
-	"android":          &utls.HelloAndroid_11_OkHttp,
-	"edge":             &utls.HelloEdge_Auto,
-	"360":              &utls.Hello360_Auto,
-	"qq":               &utls.HelloQQ_Auto,
-	"random":           nil,
-	"randomized":       nil,
-	"randomizednoalpn": nil,
-	"unsafe":           nil,
+	"chrome":     &utls.HelloChrome_Auto,
+	"firefox":    &utls.HelloFirefox_Auto,
+	"safari":     &utls.HelloSafari_Auto,
+	"ios":        &utls.HelloIOS_Auto,
+	"android":    &utls.HelloAndroid_11_OkHttp,
+	"edge":       &utls.HelloEdge_Auto,
+	"360":        &utls.Hello360_Auto,
+	"qq":         &utls.HelloQQ_Auto,
+	"random":     nil,
+	"randomized": nil,
+	"unsafe":     nil,
 }

 var ModernFingerprints = map[string]*utls.ClientHelloID{
@@ -198,14 +193,12 @@ var ModernFingerprints = map[string]*utls.ClientHelloID{
 	"hellofirefox_99":         &utls.HelloFirefox_99,
 	"hellofirefox_102":        &utls.HelloFirefox_102,
 	"hellofirefox_105":        &utls.HelloFirefox_105,
-	"hellofirefox_120":        &utls.HelloFirefox_120,
 	"hellochrome_83":          &utls.HelloChrome_83,
 	"hellochrome_87":          &utls.HelloChrome_87,
 	"hellochrome_96":          &utls.HelloChrome_96,
 	"hellochrome_100":         &utls.HelloChrome_100,
 	"hellochrome_102":         &utls.HelloChrome_102,
 	"hellochrome_106_shuffle": &utls.HelloChrome_106_Shuffle,
-	"hellochrome_120":         &utls.HelloChrome_120,
 	"helloios_13":             &utls.HelloIOS_13,
 	"helloios_14":             &utls.HelloIOS_14,
 	"helloedge_85":            &utls.HelloEdge_85,