fix

Fixes https://github.com/XTLS/Xray-core/issues/4194

app/proxyman/config.pb.go

@@ -534,8 +534,6 @@ type MultiplexingConfig struct {
 	XudpConcurrency int32 `protobuf:"varint,3,opt,name=xudpConcurrency,proto3" json:"xudpConcurrency,omitempty"`
 	// "reject" (default), "allow" or "skip".
 	XudpProxyUDP443 string `protobuf:"bytes,4,opt,name=xudpProxyUDP443,proto3" json:"xudpProxyUDP443,omitempty"`
-	// MaxReuseTimes for an connection
-	MaxReuseTimes int32 `protobuf:"varint,5,opt,name=maxReuseTimes,proto3" json:"maxReuseTimes,omitempty"`
 }
 
 func (x *MultiplexingConfig) Reset() {
@@ -596,13 +594,6 @@ func (x *MultiplexingConfig) GetXudpProxyUDP443() string {
 	return ""
 }
 
-func (x *MultiplexingConfig) GetMaxReuseTimes() int32 {
-	if x != nil {
-		return x.MaxReuseTimes
-	}
-	return 0
-}
-
 type AllocationStrategy_AllocationStrategyConcurrency struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -809,7 +800,7 @@ var file_app_proxyman_config_proto_rawDesc = []byte{
 	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, 0xca, 0x01, 0x0a, 0x12, 0x4d, 0x75, 0x6c, 0x74,
+	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,
@@ -819,16 +810,13 @@ var file_app_proxyman_config_proto_rawDesc = []byte{
 	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, 0x12, 0x24,
-	0x0a, 0x0d, 0x6d, 0x61, 0x78, 0x52, 0x65, 0x75, 0x73, 0x65, 0x54, 0x69, 0x6d, 0x65, 0x73, 0x18,
-	0x05, 0x20, 0x01, 0x28, 0x05, 0x52, 0x0d, 0x6d, 0x61, 0x78, 0x52, 0x65, 0x75, 0x73, 0x65, 0x54,
-	0x69, 0x6d, 0x65, 0x73, 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,
+	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 (

app/proxyman/config.proto

@@ -95,6 +95,4 @@ message MultiplexingConfig {
   int32 xudpConcurrency = 3;
   // "reject" (default), "allow" or "skip".
   string xudpProxyUDP443 = 4;
-  // MaxReuseTimes for an connection
-  int32 maxReuseTimes = 5;
 }

app/proxyman/outbound/handler.go

@@ -114,12 +114,6 @@ func NewHandler(ctx context.Context, config *core.OutboundHandlerConfig) (outbou
 
 	if h.senderSettings != nil && h.senderSettings.MultiplexSettings != nil {
 		if config := h.senderSettings.MultiplexSettings; config.Enabled {
-			// MaxReuseTimes use 65535 as default, and it also means the upper limit of MaxReuseTimes
-			// Because in mux cool spec, connection ID is 2 bytes
-			MaxReuseTimes := uint32(65535)
-			if config.MaxReuseTimes != 0 && config.MaxReuseTimes < 65535 {
-				MaxReuseTimes = uint32(config.MaxReuseTimes)
-			}
 			if config.Concurrency < 0 {
 				h.mux = &mux.ClientManager{Enabled: false}
 			}
@@ -135,7 +129,7 @@ func NewHandler(ctx context.Context, config *core.OutboundHandlerConfig) (outbou
 							Dialer: h,
 							Strategy: mux.ClientStrategy{
 								MaxConcurrency: uint32(config.Concurrency),
-								MaxReuseTimes:  MaxReuseTimes,
+								MaxConnection:  128,
 							},
 						},
 					},
@@ -156,7 +150,7 @@ func NewHandler(ctx context.Context, config *core.OutboundHandlerConfig) (outbou
 							Dialer: h,
 							Strategy: mux.ClientStrategy{
 								MaxConcurrency: uint32(config.XudpConcurrency),
-								MaxReuseTimes:  128,
+								MaxConnection:  128,
 							},
 						},
 					},

common/mux/client.go

@@ -166,7 +166,7 @@ func (f *DialingWorkerFactory) Create() (*ClientWorker, error) {
 
 type ClientStrategy struct {
 	MaxConcurrency uint32
-	MaxReuseTimes  uint32
+	MaxConnection  uint32
 }
 
 type ClientWorker struct {
@@ -174,7 +174,6 @@ type ClientWorker struct {
 	link           transport.Link
 	done           *done.Instance
 	strategy       ClientStrategy
-	timeCretaed    time.Time
 }
 
 var (
@@ -189,7 +188,6 @@ func NewClientWorker(stream transport.Link, s ClientStrategy) (*ClientWorker, er
 		link:           stream,
 		done:           done.New(),
 		strategy:       s,
-		timeCretaed:    time.Now(),
 	}
 
 	go c.fetchOutput()
@@ -272,7 +270,7 @@ func fetchInput(ctx context.Context, s *Session, output buf.Writer) {
 
 func (m *ClientWorker) IsClosing() bool {
 	sm := m.sessionManager
-	if m.strategy.MaxReuseTimes > 0 && sm.Count() >= int(m.strategy.MaxReuseTimes) {
+	if m.strategy.MaxConnection > 0 && sm.Count() >= int(m.strategy.MaxConnection) {
 		return true
 	}
 	return false
@@ -300,8 +298,6 @@ func (m *ClientWorker) Dispatch(ctx context.Context, link *transport.Link) bool
 	if s == nil {
 		return false
 	}
-	errors.LogInfo(ctx, "allocated mux.cool subConnection ID: ", s.ID, "/", m.strategy.MaxReuseTimes)
-	errors.LogInfo(ctx, "living subConnections:", m.ActiveConnections(), "/", m.strategy.MaxConcurrency, ", this mux connection has been created for ", time.Since(m.timeCretaed).Truncate(time.Second))
 	s.input = link.Reader
 	s.output = link.Writer
 	go fetchInput(ctx, s, m.link.Writer)

common/mux/client_test.go

@@ -58,7 +58,7 @@ func TestClientWorkerClose(t *testing.T) {
 		Writer: w1,
 	}, mux.ClientStrategy{
 		MaxConcurrency: 4,
-		MaxReuseTimes:  4,
+		MaxConnection:  4,
 	})
 	common.Must(err)
 
@@ -68,7 +68,7 @@ func TestClientWorkerClose(t *testing.T) {
 		Writer: w2,
 	}, mux.ClientStrategy{
 		MaxConcurrency: 4,
-		MaxReuseTimes:  4,
+		MaxConnection:  4,
 	})
 	common.Must(err)
 

core/core.go

@@ -19,7 +19,7 @@ import (
 var (
 	Version_x byte = 24
 	Version_y byte = 12
-	Version_z byte = 28
+	Version_z byte = 18
 )
 
 var (

infra/conf/transport_internet.go

@@ -240,8 +240,8 @@ type XmuxConfig struct {
 	MaxConcurrency   Int32Range `json:"maxConcurrency"`
 	MaxConnections   Int32Range `json:"maxConnections"`
 	CMaxReuseTimes   Int32Range `json:"cMaxReuseTimes"`
+	CMaxLifetimeMs   Int32Range `json:"cMaxLifetimeMs"`
 	HMaxRequestTimes Int32Range `json:"hMaxRequestTimes"`
-	HMaxReusableSecs Int32Range `json:"hMaxReusableSecs"`
 	HKeepAlivePeriod int64      `json:"hKeepAlivePeriod"`
 }
 
@@ -287,10 +287,10 @@ func (c *SplitHTTPConfig) Build() (proto.Message, error) {
 	if c.Xmux == (XmuxConfig{}) {
 		c.Xmux.MaxConcurrency.From = 16
 		c.Xmux.MaxConcurrency.To = 32
-		c.Xmux.HMaxRequestTimes.From = 600
+		c.Xmux.CMaxReuseTimes.From = 64
+		c.Xmux.CMaxReuseTimes.To = 128
+		c.Xmux.HMaxRequestTimes.From = 800
 		c.Xmux.HMaxRequestTimes.To = 900
-		c.Xmux.HMaxReusableSecs.From = 1800
-		c.Xmux.HMaxReusableSecs.To = 3000
 	}
 
 	config := &splithttp.Config{
@@ -308,8 +308,8 @@ func (c *SplitHTTPConfig) Build() (proto.Message, error) {
 			MaxConcurrency:   newRangeConfig(c.Xmux.MaxConcurrency),
 			MaxConnections:   newRangeConfig(c.Xmux.MaxConnections),
 			CMaxReuseTimes:   newRangeConfig(c.Xmux.CMaxReuseTimes),
+			CMaxLifetimeMs:   newRangeConfig(c.Xmux.CMaxLifetimeMs),
 			HMaxRequestTimes: newRangeConfig(c.Xmux.HMaxRequestTimes),
-			HMaxReusableSecs: newRangeConfig(c.Xmux.HMaxReusableSecs),
 			HKeepAlivePeriod: c.Xmux.HKeepAlivePeriod,
 		},
 	}

infra/conf/xray.go

@@ -97,7 +97,6 @@ func (c *SniffingConfig) Build() (*proxyman.SniffingConfig, error) {
 type MuxConfig struct {
 	Enabled         bool   `json:"enabled"`
 	Concurrency     int16  `json:"concurrency"`
-	MaxReuseTimes   int32  `json:"maxReuseTimes"`
 	XudpConcurrency int16  `json:"xudpConcurrency"`
 	XudpProxyUDP443 string `json:"xudpProxyUDP443"`
 }
@@ -114,7 +113,6 @@ func (m *MuxConfig) Build() (*proxyman.MultiplexingConfig, error) {
 	return &proxyman.MultiplexingConfig{
 		Enabled:         m.Enabled,
 		Concurrency:     int32(m.Concurrency),
-		MaxReuseTimes:   m.MaxReuseTimes,
 		XudpConcurrency: int32(m.XudpConcurrency),
 		XudpProxyUDP443: m.XudpProxyUDP443,
 	}, nil

proxy/dokodemo/dokodemo.go

@@ -2,8 +2,8 @@ package dokodemo
 
 import (
 	"context"
-	"runtime"
 	"sync/atomic"
+	"time"
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
@@ -115,7 +115,14 @@ func (d *DokodemoDoor) Process(ctx context.Context, network net.Network, conn st
 
 	plcy := d.policy()
 	ctx, cancel := context.WithCancel(ctx)
-	timer := signal.CancelAfterInactivity(ctx, cancel, plcy.Timeouts.ConnectionIdle)
+
+	var timer *signal.ActivityTimer
+	// if dns req, set a short timeout value
+	if dest.Port == 53 {
+		timer = signal.CancelAfterInactivity(ctx, cancel, 10*time.Second)
+	} else {
+		timer = signal.CancelAfterInactivity(ctx, cancel, plcy.Timeouts.ConnectionIdle)
+	}
 
 	if inbound != nil {
 		inbound.Timer = timer
@@ -148,6 +155,10 @@ func (d *DokodemoDoor) Process(ctx context.Context, network net.Network, conn st
 		return nil
 	}
 
+	tproxyRequest := func() error {
+		return nil
+	}
+
 	var writer buf.Writer
 	if network == net.Network_TCP {
 		writer = buf.NewWriter(conn)
@@ -177,12 +188,6 @@ func (d *DokodemoDoor) Process(ctx context.Context, network net.Network, conn st
 				return err
 			}
 			writer = NewPacketWriter(pConn, &dest, mark, back)
-			defer func() {
-				runtime.Gosched()
-				common.Interrupt(link.Reader) // maybe duplicated
-				runtime.Gosched()
-				writer.(*PacketWriter).Close() // close fake UDP conns
-			}()
 			/*
 				sockopt := &internet.SocketConfig{
 					Tproxy: internet.SocketConfig_TProxy,
@@ -221,9 +226,8 @@ func (d *DokodemoDoor) Process(ctx context.Context, network net.Network, conn st
 	responseDone := func() error {
 		defer timer.SetTimeout(plcy.Timeouts.UplinkOnly)
 
-		if network == net.Network_UDP && destinationOverridden {
-			buf.Copy(link.Reader, writer) // respect upload's timeout
-			return nil
+		if pw, ok := writer.(*PacketWriter); ok {
+			defer pw.Close()
 		}
 
 		if err := buf.Copy(link.Reader, writer, buf.UpdateActivity(timer)); err != nil {
@@ -232,13 +236,11 @@ func (d *DokodemoDoor) Process(ctx context.Context, network net.Network, conn st
 		return nil
 	}
 
-	if err := task.Run(ctx,
-		task.OnSuccess(func() error { return task.Run(ctx, requestDone) }, task.Close(link.Writer)),
-		responseDone); err != nil {
-		runtime.Gosched()
-		common.Interrupt(link.Writer)
-		runtime.Gosched()
+	if err := task.Run(ctx, task.OnSuccess(func() error {
+		return task.Run(ctx, requestDone, tproxyRequest)
+	}, task.Close(link.Writer)), responseDone); err != nil {
 		common.Interrupt(link.Reader)
+		common.Interrupt(link.Writer)
 		return errors.New("connection ends").Base(err)
 	}
 

transport/internet/splithttp/config.go

@@ -64,15 +64,12 @@ func (c *Config) WriteResponseHeader(writer http.ResponseWriter) {
 	}
 }
 
-func (c *Config) GetNormalizedXPaddingBytes() RangeConfig {
-	if c.XPaddingBytes == nil || c.XPaddingBytes.To == 0 {
-		return RangeConfig{
-			From: 100,
-			To:   1000,
-		}
+func (c *Config) GetNormalizedScMaxBufferedPosts() int {
+	if c.ScMaxBufferedPosts == 0 {
+		return 30
 	}
 
-	return *c.XPaddingBytes
+	return int(c.ScMaxBufferedPosts)
 }
 
 func (c *Config) GetNormalizedScMaxEachPostBytes() RangeConfig {
@@ -97,34 +94,26 @@ func (c *Config) GetNormalizedScMinPostsIntervalMs() RangeConfig {
 	return *c.ScMinPostsIntervalMs
 }
 
-func (c *Config) GetNormalizedScMaxBufferedPosts() int {
-	if c.ScMaxBufferedPosts == 0 {
-		return 30
+func (c *Config) GetNormalizedXPaddingBytes() RangeConfig {
+	if c.XPaddingBytes == nil || c.XPaddingBytes.To == 0 {
+		return RangeConfig{
+			From: 100,
+			To:   1000,
+		}
 	}
 
-	return int(c.ScMaxBufferedPosts)
+	return *c.XPaddingBytes
 }
 
-func (m *XmuxConfig) GetNormalizedMaxConcurrency() RangeConfig {
-	if m.MaxConcurrency == nil {
+func (m *XmuxConfig) GetNormalizedCMaxRequestTimes() RangeConfig {
+	if m.HMaxRequestTimes == nil {
 		return RangeConfig{
 			From: 0,
 			To:   0,
 		}
 	}
 
-	return *m.MaxConcurrency
-}
-
-func (m *XmuxConfig) GetNormalizedMaxConnections() RangeConfig {
-	if m.MaxConnections == nil {
-		return RangeConfig{
-			From: 0,
-			To:   0,
-		}
-	}
-
-	return *m.MaxConnections
+	return *m.HMaxRequestTimes
 }
 
 func (m *XmuxConfig) GetNormalizedCMaxReuseTimes() RangeConfig {
@@ -138,26 +127,36 @@ func (m *XmuxConfig) GetNormalizedCMaxReuseTimes() RangeConfig {
 	return *m.CMaxReuseTimes
 }
 
-func (m *XmuxConfig) GetNormalizedHMaxRequestTimes() RangeConfig {
-	if m.HMaxRequestTimes == nil {
+func (m *XmuxConfig) GetNormalizedCMaxLifetimeMs() RangeConfig {
+	if m.CMaxLifetimeMs == nil {
 		return RangeConfig{
 			From: 0,
 			To:   0,
 		}
 	}
-
-	return *m.HMaxRequestTimes
+	return *m.CMaxLifetimeMs
 }
 
-func (m *XmuxConfig) GetNormalizedHMaxReusableSecs() RangeConfig {
-	if m.HMaxReusableSecs == nil {
+func (m *XmuxConfig) GetNormalizedMaxConnections() RangeConfig {
+	if m.MaxConnections == nil {
 		return RangeConfig{
 			From: 0,
 			To:   0,
 		}
 	}
 
-	return *m.HMaxReusableSecs
+	return *m.MaxConnections
+}
+
+func (m *XmuxConfig) GetNormalizedMaxConcurrency() RangeConfig {
+	if m.MaxConcurrency == nil {
+		return RangeConfig{
+			From: 0,
+			To:   0,
+		}
+	}
+
+	return *m.MaxConcurrency
 }
 
 func init() {

transport/internet/splithttp/config.pb.go

@@ -82,8 +82,8 @@ type XmuxConfig struct {
 	MaxConcurrency   *RangeConfig `protobuf:"bytes,1,opt,name=maxConcurrency,proto3" json:"maxConcurrency,omitempty"`
 	MaxConnections   *RangeConfig `protobuf:"bytes,2,opt,name=maxConnections,proto3" json:"maxConnections,omitempty"`
 	CMaxReuseTimes   *RangeConfig `protobuf:"bytes,3,opt,name=cMaxReuseTimes,proto3" json:"cMaxReuseTimes,omitempty"`
-	HMaxRequestTimes *RangeConfig `protobuf:"bytes,4,opt,name=hMaxRequestTimes,proto3" json:"hMaxRequestTimes,omitempty"`
-	HMaxReusableSecs *RangeConfig `protobuf:"bytes,5,opt,name=hMaxReusableSecs,proto3" json:"hMaxReusableSecs,omitempty"`
+	CMaxLifetimeMs   *RangeConfig `protobuf:"bytes,4,opt,name=cMaxLifetimeMs,proto3" json:"cMaxLifetimeMs,omitempty"`
+	HMaxRequestTimes *RangeConfig `protobuf:"bytes,5,opt,name=hMaxRequestTimes,proto3" json:"hMaxRequestTimes,omitempty"`
 	HKeepAlivePeriod int64        `protobuf:"varint,6,opt,name=hKeepAlivePeriod,proto3" json:"hKeepAlivePeriod,omitempty"`
 }
 
@@ -138,16 +138,16 @@ func (x *XmuxConfig) GetCMaxReuseTimes() *RangeConfig {
 	return nil
 }
 
-func (x *XmuxConfig) GetHMaxRequestTimes() *RangeConfig {
+func (x *XmuxConfig) GetCMaxLifetimeMs() *RangeConfig {
 	if x != nil {
-		return x.HMaxRequestTimes
+		return x.CMaxLifetimeMs
 	}
 	return nil
 }
 
-func (x *XmuxConfig) GetHMaxReusableSecs() *RangeConfig {
+func (x *XmuxConfig) GetHMaxRequestTimes() *RangeConfig {
 	if x != nil {
-		return x.HMaxReusableSecs
+		return x.HMaxRequestTimes
 	}
 	return nil
 }
@@ -305,7 +305,7 @@ var file_transport_internet_splithttp_config_proto_rawDesc = []byte{
 	0x31, 0x0a, 0x0b, 0x52, 0x61, 0x6e, 0x67, 0x65, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x12,
 	0x0a, 0x04, 0x66, 0x72, 0x6f, 0x6d, 0x18, 0x01, 0x20, 0x01, 0x28, 0x05, 0x52, 0x04, 0x66, 0x72,
 	0x6f, 0x6d, 0x12, 0x0e, 0x0a, 0x02, 0x74, 0x6f, 0x18, 0x02, 0x20, 0x01, 0x28, 0x05, 0x52, 0x02,
-	0x74, 0x6f, 0x22, 0xf8, 0x03, 0x0a, 0x0a, 0x58, 0x6d, 0x75, 0x78, 0x43, 0x6f, 0x6e, 0x66, 0x69,
+	0x74, 0x6f, 0x22, 0xf4, 0x03, 0x0a, 0x0a, 0x58, 0x6d, 0x75, 0x78, 0x43, 0x6f, 0x6e, 0x66, 0x69,
 	0x67, 0x12, 0x56, 0x0a, 0x0e, 0x6d, 0x61, 0x78, 0x43, 0x6f, 0x6e, 0x63, 0x75, 0x72, 0x72, 0x65,
 	0x6e, 0x63, 0x79, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x2e, 0x2e, 0x78, 0x72, 0x61, 0x79,
 	0x2e, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2e, 0x69, 0x6e, 0x74, 0x65, 0x72,
@@ -322,78 +322,78 @@ var file_transport_internet_splithttp_config_proto_rawDesc = []byte{
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+	0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -420,8 +420,8 @@ var file_transport_internet_splithttp_config_proto_depIdxs = []int32{
 	0,  // 0: xray.transport.internet.splithttp.XmuxConfig.maxConcurrency:type_name -> xray.transport.internet.splithttp.RangeConfig
 	0,  // 1: xray.transport.internet.splithttp.XmuxConfig.maxConnections:type_name -> xray.transport.internet.splithttp.RangeConfig
 	0,  // 2: xray.transport.internet.splithttp.XmuxConfig.cMaxReuseTimes:type_name -> xray.transport.internet.splithttp.RangeConfig
-	0,  // 3: xray.transport.internet.splithttp.XmuxConfig.hMaxRequestTimes:type_name -> xray.transport.internet.splithttp.RangeConfig
-	0,  // 4: xray.transport.internet.splithttp.XmuxConfig.hMaxReusableSecs:type_name -> xray.transport.internet.splithttp.RangeConfig
+	0,  // 3: xray.transport.internet.splithttp.XmuxConfig.cMaxLifetimeMs:type_name -> xray.transport.internet.splithttp.RangeConfig
+	0,  // 4: xray.transport.internet.splithttp.XmuxConfig.hMaxRequestTimes:type_name -> xray.transport.internet.splithttp.RangeConfig
 	3,  // 5: xray.transport.internet.splithttp.Config.headers:type_name -> xray.transport.internet.splithttp.Config.HeadersEntry
 	0,  // 6: xray.transport.internet.splithttp.Config.xPaddingBytes:type_name -> xray.transport.internet.splithttp.RangeConfig
 	0,  // 7: xray.transport.internet.splithttp.Config.scMaxEachPostBytes:type_name -> xray.transport.internet.splithttp.RangeConfig

transport/internet/splithttp/config.proto

@@ -17,8 +17,8 @@ message XmuxConfig {
   RangeConfig maxConcurrency = 1;
   RangeConfig maxConnections = 2;
   RangeConfig cMaxReuseTimes = 3;
-  RangeConfig hMaxRequestTimes = 4;
-  RangeConfig hMaxReusableSecs = 5;
+  RangeConfig cMaxLifetimeMs = 4;
+  RangeConfig hMaxRequestTimes = 5;
   int64 hKeepAlivePeriod = 6;
 }
 

transport/internet/splithttp/dialer.go

@@ -447,8 +447,7 @@ func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.Me
 
 			lastWrite = time.Now()
 
-			if xmuxClient != nil && (xmuxClient.LeftRequests.Add(-1) <= 0 ||
-				(xmuxClient.UnreusableAt != time.Time{} && lastWrite.After(xmuxClient.UnreusableAt))) {
+			if xmuxClient != nil && xmuxClient.LeftRequests.Add(-1) <= 0 {
 				httpClient, xmuxClient = getHTTPClient(ctx, dest, streamSettings)
 			}
 

transport/internet/splithttp/mux.go

@@ -16,11 +16,11 @@ type XmuxConn interface {
 }
 
 type XmuxClient struct {
-	XmuxConn     XmuxConn
-	OpenUsage    atomic.Int32
-	leftUsage    int32
-	LeftRequests atomic.Int32
-	UnreusableAt time.Time
+	XmuxConn       XmuxConn
+	OpenUsage      atomic.Int32
+	leftUsage      int32
+	expirationTime time.Time
+	LeftRequests   atomic.Int32
 }
 
 type XmuxManager struct {
@@ -43,18 +43,19 @@ func NewXmuxManager(xmuxConfig XmuxConfig, newConnFunc func() XmuxConn) *XmuxMan
 
 func (m *XmuxManager) newXmuxClient() *XmuxClient {
 	xmuxClient := &XmuxClient{
-		XmuxConn:  m.newConnFunc(),
-		leftUsage: -1,
+		XmuxConn:       m.newConnFunc(),
+		leftUsage:      -1,
+		expirationTime: time.UnixMilli(0),
 	}
 	if x := m.xmuxConfig.GetNormalizedCMaxReuseTimes().rand(); x > 0 {
 		xmuxClient.leftUsage = x - 1
 	}
-	xmuxClient.LeftRequests.Store(math.MaxInt32)
-	if x := m.xmuxConfig.GetNormalizedHMaxRequestTimes().rand(); x > 0 {
-		xmuxClient.LeftRequests.Store(x)
+	if x := m.xmuxConfig.GetNormalizedCMaxLifetimeMs().rand(); x > 0 {
+		xmuxClient.expirationTime = time.Now().Add(time.Duration(x) * time.Millisecond)
 	}
-	if x := m.xmuxConfig.GetNormalizedHMaxReusableSecs().rand(); x > 0 {
-		xmuxClient.UnreusableAt = time.Now().Add(time.Duration(x) * time.Second)
+	xmuxClient.LeftRequests.Store(math.MaxInt32)
+	if x := m.xmuxConfig.GetNormalizedCMaxRequestTimes().rand(); x > 0 {
+		xmuxClient.LeftRequests.Store(x)
 	}
 	m.xmuxClients = append(m.xmuxClients, xmuxClient)
 	return xmuxClient
@@ -65,13 +66,13 @@ func (m *XmuxManager) GetXmuxClient(ctx context.Context) *XmuxClient { // when l
 		xmuxClient := m.xmuxClients[i]
 		if xmuxClient.XmuxConn.IsClosed() ||
 			xmuxClient.leftUsage == 0 ||
-			xmuxClient.LeftRequests.Load() <= 0 ||
-			(xmuxClient.UnreusableAt != time.Time{} && time.Now().After(xmuxClient.UnreusableAt)) {
+			(xmuxClient.expirationTime != time.UnixMilli(0) && time.Now().After(xmuxClient.expirationTime)) ||
+			xmuxClient.LeftRequests.Load() <= 0 {
 			errors.LogDebug(ctx, "XMUX: removing xmuxClient, IsClosed() = ", xmuxClient.XmuxConn.IsClosed(),
 				", OpenUsage = ", xmuxClient.OpenUsage.Load(),
 				", leftUsage = ", xmuxClient.leftUsage,
-				", LeftRequests = ", xmuxClient.LeftRequests.Load(),
-				", UnreusableAt = ", xmuxClient.UnreusableAt)
+				", expirationTime = ", xmuxClient.expirationTime,
+				", LeftRequests = ", xmuxClient.LeftRequests.Load())
 			m.xmuxClients = append(m.xmuxClients[:i], m.xmuxClients[i+1:]...)
 		} else {
 			i++