XHTTP XMUX: `cMaxLifetimeMs` -> `hMaxReusableSecs`, Refactor default values

"xmux": {
    "maxConcurrency": "16-32",
    "maxConnections": 0,
    "cMaxReuseTimes": 0,
    "hMaxRequestTimes": "600-900",
    "hMaxReusableSecs": "1800-3000",
    "hKeepAlivePeriod": 0
}

Fixes https://github.com/XTLS/Xray-core/discussions/4113#discussioncomment-11685057

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.CMaxReuseTimes.From = 256
-		c.Xmux.CMaxReuseTimes.To = 512
-		c.Xmux.HMaxRequestTimes.From = 800
+		c.Xmux.HMaxRequestTimes.From = 600
 		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,
 		},
 	}

transport/internet/splithttp/config.go

@@ -64,12 +64,15 @@ func (c *Config) WriteResponseHeader(writer http.ResponseWriter) {
 	}
 }
 
-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 (c *Config) GetNormalizedScMaxEachPostBytes() RangeConfig {
@@ -94,69 +97,67 @@ func (c *Config) GetNormalizedScMinPostsIntervalMs() RangeConfig {
 	return *c.ScMinPostsIntervalMs
 }
 
-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 (m *XmuxConfig) GetNormalizedCMaxRequestTimes() RangeConfig {
-	if m.HMaxRequestTimes == nil {
+func (m *XmuxConfig) GetNormalizedMaxConcurrency() RangeConfig {
+	if m.MaxConcurrency == nil {
 		return RangeConfig{
 			From: 0,
 			To:   0,
 		}
 	}
 
-	return *m.HMaxRequestTimes
+	return *m.MaxConcurrency
 }
 
-func (m *XmuxConfig) GetNormalizedCMaxReuseTimes() RangeConfig {
-	if m.CMaxReuseTimes == nil {
+func (m *XmuxConfig) GetNormalizedMaxConnections() RangeConfig {
+	if m.MaxConnections == nil {
 		return RangeConfig{
 			From: 0,
 			To:   0,
 		}
 	}
 
-	return *m.CMaxReuseTimes
+	return *m.MaxConnections
 }
 
-func (m *XmuxConfig) GetNormalizedCMaxLifetimeMs() RangeConfig {
-	if m.CMaxLifetimeMs == nil {
+func (m *XmuxConfig) GetNormalizedCMaxReuseTimes() RangeConfig {
+	if m.CMaxReuseTimes == nil {
 		return RangeConfig{
 			From: 0,
 			To:   0,
 		}
 	}
-	return *m.CMaxLifetimeMs
+
+	return *m.CMaxReuseTimes
 }
 
-func (m *XmuxConfig) GetNormalizedMaxConnections() RangeConfig {
-	if m.MaxConnections == nil {
+func (m *XmuxConfig) GetNormalizedHMaxRequestTimes() RangeConfig {
+	if m.HMaxRequestTimes == nil {
 		return RangeConfig{
 			From: 0,
 			To:   0,
 		}
 	}
 
-	return *m.MaxConnections
+	return *m.HMaxRequestTimes
 }
 
-func (m *XmuxConfig) GetNormalizedMaxConcurrency() RangeConfig {
-	if m.MaxConcurrency == nil {
+func (m *XmuxConfig) GetNormalizedHMaxReusableSecs() RangeConfig {
+	if m.HMaxReusableSecs == nil {
 		return RangeConfig{
 			From: 0,
 			To:   0,
 		}
 	}
 
-	return *m.MaxConcurrency
+	return *m.HMaxReusableSecs
 }
 
 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"`
-	CMaxLifetimeMs   *RangeConfig `protobuf:"bytes,4,opt,name=cMaxLifetimeMs,proto3" json:"cMaxLifetimeMs,omitempty"`
-	HMaxRequestTimes *RangeConfig `protobuf:"bytes,5,opt,name=hMaxRequestTimes,proto3" json:"hMaxRequestTimes,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"`
 	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) GetCMaxLifetimeMs() *RangeConfig {
+func (x *XmuxConfig) GetHMaxRequestTimes() *RangeConfig {
 	if x != nil {
-		return x.CMaxLifetimeMs
+		return x.HMaxRequestTimes
 	}
 	return nil
 }
 
-func (x *XmuxConfig) GetHMaxRequestTimes() *RangeConfig {
+func (x *XmuxConfig) GetHMaxReusableSecs() *RangeConfig {
 	if x != nil {
-		return x.HMaxRequestTimes
+		return x.HMaxReusableSecs
 	}
 	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, 0xf4, 0x03, 0x0a, 0x0a, 0x58, 0x6d, 0x75, 0x78, 0x43, 0x6f, 0x6e, 0x66, 0x69,
+	0x74, 0x6f, 0x22, 0xf8, 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{
 	0x2e, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2e, 0x69, 0x6e, 0x74, 0x65, 0x72,
 	0x6e, 0x65, 0x74, 0x2e, 0x73, 0x70, 0x6c, 0x69, 0x74, 0x68, 0x74, 0x74, 0x70, 0x2e, 0x52, 0x61,
 	0x6e, 0x67, 0x65, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x52, 0x0e, 0x63, 0x4d, 0x61, 0x78, 0x52,
-	0x65, 0x75, 0x73, 0x65, 0x54, 0x69, 0x6d, 0x65, 0x73, 0x12, 0x56, 0x0a, 0x0e, 0x63, 0x4d, 0x61,
-	0x78, 0x4c, 0x69, 0x66, 0x65, 0x74, 0x69, 0x6d, 0x65, 0x4d, 0x73, 0x18, 0x04, 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, 0x6e, 0x65, 0x74, 0x2e, 0x73, 0x70, 0x6c, 0x69,
-	0x74, 0x68, 0x74, 0x74, 0x70, 0x2e, 0x52, 0x61, 0x6e, 0x67, 0x65, 0x43, 0x6f, 0x6e, 0x66, 0x69,
-	0x67, 0x52, 0x0e, 0x63, 0x4d, 0x61, 0x78, 0x4c, 0x69, 0x66, 0x65, 0x74, 0x69, 0x6d, 0x65, 0x4d,
-	0x73, 0x12, 0x5a, 0x0a, 0x10, 0x68, 0x4d, 0x61, 0x78, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74,
-	0x54, 0x69, 0x6d, 0x65, 0x73, 0x18, 0x05, 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, 0x6e, 0x65, 0x74, 0x2e, 0x73, 0x70, 0x6c, 0x69, 0x74, 0x68, 0x74, 0x74, 0x70, 0x2e,
-	0x52, 0x61, 0x6e, 0x67, 0x65, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x52, 0x10, 0x68, 0x4d, 0x61,
-	0x78, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x54, 0x69, 0x6d, 0x65, 0x73, 0x12, 0x2a, 0x0a,
-	0x10, 0x68, 0x4b, 0x65, 0x65, 0x70, 0x41, 0x6c, 0x69, 0x76, 0x65, 0x50, 0x65, 0x72, 0x69, 0x6f,
-	0x64, 0x18, 0x06, 0x20, 0x01, 0x28, 0x03, 0x52, 0x10, 0x68, 0x4b, 0x65, 0x65, 0x70, 0x41, 0x6c,
-	0x69, 0x76, 0x65, 0x50, 0x65, 0x72, 0x69, 0x6f, 0x64, 0x22, 0xf8, 0x05, 0x0a, 0x06, 0x43, 0x6f,
-	0x6e, 0x66, 0x69, 0x67, 0x12, 0x12, 0x0a, 0x04, 0x68, 0x6f, 0x73, 0x74, 0x18, 0x01, 0x20, 0x01,
-	0x28, 0x09, 0x52, 0x04, 0x68, 0x6f, 0x73, 0x74, 0x12, 0x12, 0x0a, 0x04, 0x70, 0x61, 0x74, 0x68,
-	0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x70, 0x61, 0x74, 0x68, 0x12, 0x12, 0x0a, 0x04,
-	0x6d, 0x6f, 0x64, 0x65, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x6d, 0x6f, 0x64, 0x65,
-	0x12, 0x50, 0x0a, 0x07, 0x68, 0x65, 0x61, 0x64, 0x65, 0x72, 0x73, 0x18, 0x04, 0x20, 0x03, 0x28,
-	0x0b, 0x32, 0x36, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f,
-	0x72, 0x74, 0x2e, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2e, 0x73, 0x70, 0x6c, 0x69,
-	0x74, 0x68, 0x74, 0x74, 0x70, 0x2e, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x2e, 0x48, 0x65, 0x61,
-	0x64, 0x65, 0x72, 0x73, 0x45, 0x6e, 0x74, 0x72, 0x79, 0x52, 0x07, 0x68, 0x65, 0x61, 0x64, 0x65,
-	0x72, 0x73, 0x12, 0x54, 0x0a, 0x0d, 0x78, 0x50, 0x61, 0x64, 0x64, 0x69, 0x6e, 0x67, 0x42, 0x79,
-	0x74, 0x65, 0x73, 0x18, 0x05, 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,
-	0x6e, 0x65, 0x74, 0x2e, 0x73, 0x70, 0x6c, 0x69, 0x74, 0x68, 0x74, 0x74, 0x70, 0x2e, 0x52, 0x61,
-	0x6e, 0x67, 0x65, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x52, 0x0d, 0x78, 0x50, 0x61, 0x64, 0x64,
-	0x69, 0x6e, 0x67, 0x42, 0x79, 0x74, 0x65, 0x73, 0x12, 0x22, 0x0a, 0x0c, 0x6e, 0x6f, 0x47, 0x52,
-	0x50, 0x43, 0x48, 0x65, 0x61, 0x64, 0x65, 0x72, 0x18, 0x06, 0x20, 0x01, 0x28, 0x08, 0x52, 0x0c,
-	0x6e, 0x6f, 0x47, 0x52, 0x50, 0x43, 0x48, 0x65, 0x61, 0x64, 0x65, 0x72, 0x12, 0x20, 0x0a, 0x0b,
-	0x6e, 0x6f, 0x53, 0x53, 0x45, 0x48, 0x65, 0x61, 0x64, 0x65, 0x72, 0x18, 0x07, 0x20, 0x01, 0x28,
-	0x08, 0x52, 0x0b, 0x6e, 0x6f, 0x53, 0x53, 0x45, 0x48, 0x65, 0x61, 0x64, 0x65, 0x72, 0x12, 0x5e,
-	0x0a, 0x12, 0x73, 0x63, 0x4d, 0x61, 0x78, 0x45, 0x61, 0x63, 0x68, 0x50, 0x6f, 0x73, 0x74, 0x42,
-	0x79, 0x74, 0x65, 0x73, 0x18, 0x08, 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, 0x6e, 0x65, 0x74, 0x2e, 0x73, 0x70, 0x6c, 0x69, 0x74, 0x68, 0x74, 0x74, 0x70, 0x2e, 0x52,
-	0x61, 0x6e, 0x67, 0x65, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x52, 0x12, 0x73, 0x63, 0x4d, 0x61,
-	0x78, 0x45, 0x61, 0x63, 0x68, 0x50, 0x6f, 0x73, 0x74, 0x42, 0x79, 0x74, 0x65, 0x73, 0x12, 0x62,
-	0x0a, 0x14, 0x73, 0x63, 0x4d, 0x69, 0x6e, 0x50, 0x6f, 0x73, 0x74, 0x73, 0x49, 0x6e, 0x74, 0x65,
-	0x72, 0x76, 0x61, 0x6c, 0x4d, 0x73, 0x18, 0x09, 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, 0x6e, 0x65, 0x74, 0x2e, 0x73, 0x70, 0x6c, 0x69, 0x74, 0x68, 0x74, 0x74, 0x70,
-	0x2e, 0x52, 0x61, 0x6e, 0x67, 0x65, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x52, 0x14, 0x73, 0x63,
-	0x4d, 0x69, 0x6e, 0x50, 0x6f, 0x73, 0x74, 0x73, 0x49, 0x6e, 0x74, 0x65, 0x72, 0x76, 0x61, 0x6c,
-	0x4d, 0x73, 0x12, 0x2e, 0x0a, 0x12, 0x73, 0x63, 0x4d, 0x61, 0x78, 0x42, 0x75, 0x66, 0x66, 0x65,
-	0x72, 0x65, 0x64, 0x50, 0x6f, 0x73, 0x74, 0x73, 0x18, 0x0a, 0x20, 0x01, 0x28, 0x03, 0x52, 0x12,
-	0x73, 0x63, 0x4d, 0x61, 0x78, 0x42, 0x75, 0x66, 0x66, 0x65, 0x72, 0x65, 0x64, 0x50, 0x6f, 0x73,
-	0x74, 0x73, 0x12, 0x41, 0x0a, 0x04, 0x78, 0x6d, 0x75, 0x78, 0x18, 0x0b, 0x20, 0x01, 0x28, 0x0b,
-	0x32, 0x2d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72,
+	0x65, 0x75, 0x73, 0x65, 0x54, 0x69, 0x6d, 0x65, 0x73, 0x12, 0x5a, 0x0a, 0x10, 0x68, 0x4d, 0x61,
+	0x78, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x54, 0x69, 0x6d, 0x65, 0x73, 0x18, 0x04, 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, 0x6e, 0x65, 0x74, 0x2e, 0x73, 0x70,
+	0x6c, 0x69, 0x74, 0x68, 0x74, 0x74, 0x70, 0x2e, 0x52, 0x61, 0x6e, 0x67, 0x65, 0x43, 0x6f, 0x6e,
+	0x66, 0x69, 0x67, 0x52, 0x10, 0x68, 0x4d, 0x61, 0x78, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74,
+	0x54, 0x69, 0x6d, 0x65, 0x73, 0x12, 0x5a, 0x0a, 0x10, 0x68, 0x4d, 0x61, 0x78, 0x52, 0x65, 0x75,
+	0x73, 0x61, 0x62, 0x6c, 0x65, 0x53, 0x65, 0x63, 0x73, 0x18, 0x05, 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, 0x6e, 0x65, 0x74, 0x2e, 0x73, 0x70, 0x6c, 0x69, 0x74, 0x68,
+	0x74, 0x74, 0x70, 0x2e, 0x52, 0x61, 0x6e, 0x67, 0x65, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x52,
+	0x10, 0x68, 0x4d, 0x61, 0x78, 0x52, 0x65, 0x75, 0x73, 0x61, 0x62, 0x6c, 0x65, 0x53, 0x65, 0x63,
+	0x73, 0x12, 0x2a, 0x0a, 0x10, 0x68, 0x4b, 0x65, 0x65, 0x70, 0x41, 0x6c, 0x69, 0x76, 0x65, 0x50,
+	0x65, 0x72, 0x69, 0x6f, 0x64, 0x18, 0x06, 0x20, 0x01, 0x28, 0x03, 0x52, 0x10, 0x68, 0x4b, 0x65,
+	0x65, 0x70, 0x41, 0x6c, 0x69, 0x76, 0x65, 0x50, 0x65, 0x72, 0x69, 0x6f, 0x64, 0x22, 0xf8, 0x05,
+	0x0a, 0x06, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x12, 0x0a, 0x04, 0x68, 0x6f, 0x73, 0x74,
+	0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x68, 0x6f, 0x73, 0x74, 0x12, 0x12, 0x0a, 0x04,
+	0x70, 0x61, 0x74, 0x68, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x70, 0x61, 0x74, 0x68,
+	0x12, 0x12, 0x0a, 0x04, 0x6d, 0x6f, 0x64, 0x65, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04,
+	0x6d, 0x6f, 0x64, 0x65, 0x12, 0x50, 0x0a, 0x07, 0x68, 0x65, 0x61, 0x64, 0x65, 0x72, 0x73, 0x18,
+	0x04, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x36, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x74, 0x72, 0x61,
+	0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2e, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2e,
+	0x73, 0x70, 0x6c, 0x69, 0x74, 0x68, 0x74, 0x74, 0x70, 0x2e, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67,
+	0x2e, 0x48, 0x65, 0x61, 0x64, 0x65, 0x72, 0x73, 0x45, 0x6e, 0x74, 0x72, 0x79, 0x52, 0x07, 0x68,
+	0x65, 0x61, 0x64, 0x65, 0x72, 0x73, 0x12, 0x54, 0x0a, 0x0d, 0x78, 0x50, 0x61, 0x64, 0x64, 0x69,
+	0x6e, 0x67, 0x42, 0x79, 0x74, 0x65, 0x73, 0x18, 0x05, 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, 0x6e, 0x65, 0x74, 0x2e, 0x73, 0x70, 0x6c, 0x69, 0x74, 0x68, 0x74, 0x74,
+	0x70, 0x2e, 0x52, 0x61, 0x6e, 0x67, 0x65, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x52, 0x0d, 0x78,
+	0x50, 0x61, 0x64, 0x64, 0x69, 0x6e, 0x67, 0x42, 0x79, 0x74, 0x65, 0x73, 0x12, 0x22, 0x0a, 0x0c,
+	0x6e, 0x6f, 0x47, 0x52, 0x50, 0x43, 0x48, 0x65, 0x61, 0x64, 0x65, 0x72, 0x18, 0x06, 0x20, 0x01,
+	0x28, 0x08, 0x52, 0x0c, 0x6e, 0x6f, 0x47, 0x52, 0x50, 0x43, 0x48, 0x65, 0x61, 0x64, 0x65, 0x72,
+	0x12, 0x20, 0x0a, 0x0b, 0x6e, 0x6f, 0x53, 0x53, 0x45, 0x48, 0x65, 0x61, 0x64, 0x65, 0x72, 0x18,
+	0x07, 0x20, 0x01, 0x28, 0x08, 0x52, 0x0b, 0x6e, 0x6f, 0x53, 0x53, 0x45, 0x48, 0x65, 0x61, 0x64,
+	0x65, 0x72, 0x12, 0x5e, 0x0a, 0x12, 0x73, 0x63, 0x4d, 0x61, 0x78, 0x45, 0x61, 0x63, 0x68, 0x50,
+	0x6f, 0x73, 0x74, 0x42, 0x79, 0x74, 0x65, 0x73, 0x18, 0x08, 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, 0x6e, 0x65, 0x74, 0x2e, 0x73, 0x70, 0x6c, 0x69, 0x74, 0x68, 0x74,
+	0x74, 0x70, 0x2e, 0x52, 0x61, 0x6e, 0x67, 0x65, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x52, 0x12,
+	0x73, 0x63, 0x4d, 0x61, 0x78, 0x45, 0x61, 0x63, 0x68, 0x50, 0x6f, 0x73, 0x74, 0x42, 0x79, 0x74,
+	0x65, 0x73, 0x12, 0x62, 0x0a, 0x14, 0x73, 0x63, 0x4d, 0x69, 0x6e, 0x50, 0x6f, 0x73, 0x74, 0x73,
+	0x49, 0x6e, 0x74, 0x65, 0x72, 0x76, 0x61, 0x6c, 0x4d, 0x73, 0x18, 0x09, 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, 0x6e, 0x65, 0x74, 0x2e, 0x73, 0x70, 0x6c, 0x69, 0x74,
-	0x68, 0x74, 0x74, 0x70, 0x2e, 0x58, 0x6d, 0x75, 0x78, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x52,
-	0x04, 0x78, 0x6d, 0x75, 0x78, 0x12, 0x51, 0x0a, 0x10, 0x64, 0x6f, 0x77, 0x6e, 0x6c, 0x6f, 0x61,
-	0x64, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x18, 0x0c, 0x20, 0x01, 0x28, 0x0b, 0x32,
-	0x25, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74,
-	0x2e, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2e, 0x53, 0x74, 0x72, 0x65, 0x61, 0x6d,
-	0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x52, 0x10, 0x64, 0x6f, 0x77, 0x6e, 0x6c, 0x6f, 0x61, 0x64,
-	0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x1a, 0x3a, 0x0a, 0x0c, 0x48, 0x65, 0x61, 0x64,
-	0x65, 0x72, 0x73, 0x45, 0x6e, 0x74, 0x72, 0x79, 0x12, 0x10, 0x0a, 0x03, 0x6b, 0x65, 0x79, 0x18,
-	0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03, 0x6b, 0x65, 0x79, 0x12, 0x14, 0x0a, 0x05, 0x76, 0x61,
-	0x6c, 0x75, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65,
-	0x3a, 0x02, 0x38, 0x01, 0x42, 0x85, 0x01, 0x0a, 0x25, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61,
-	0x79, 0x2e, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2e, 0x69, 0x6e, 0x74, 0x65,
-	0x72, 0x6e, 0x65, 0x74, 0x2e, 0x73, 0x70, 0x6c, 0x69, 0x74, 0x68, 0x74, 0x74, 0x70, 0x50, 0x01,
-	0x5a, 0x36, 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, 0x74, 0x72, 0x61, 0x6e,
-	0x73, 0x70, 0x6f, 0x72, 0x74, 0x2f, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2f, 0x73,
-	0x70, 0x6c, 0x69, 0x74, 0x68, 0x74, 0x74, 0x70, 0xaa, 0x02, 0x21, 0x58, 0x72, 0x61, 0x79, 0x2e,
-	0x54, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2e, 0x49, 0x6e, 0x74, 0x65, 0x72, 0x6e,
-	0x65, 0x74, 0x2e, 0x53, 0x70, 0x6c, 0x69, 0x74, 0x48, 0x74, 0x74, 0x70, 0x62, 0x06, 0x70, 0x72,
-	0x6f, 0x74, 0x6f, 0x33,
+	0x68, 0x74, 0x74, 0x70, 0x2e, 0x52, 0x61, 0x6e, 0x67, 0x65, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67,
+	0x52, 0x14, 0x73, 0x63, 0x4d, 0x69, 0x6e, 0x50, 0x6f, 0x73, 0x74, 0x73, 0x49, 0x6e, 0x74, 0x65,
+	0x72, 0x76, 0x61, 0x6c, 0x4d, 0x73, 0x12, 0x2e, 0x0a, 0x12, 0x73, 0x63, 0x4d, 0x61, 0x78, 0x42,
+	0x75, 0x66, 0x66, 0x65, 0x72, 0x65, 0x64, 0x50, 0x6f, 0x73, 0x74, 0x73, 0x18, 0x0a, 0x20, 0x01,
+	0x28, 0x03, 0x52, 0x12, 0x73, 0x63, 0x4d, 0x61, 0x78, 0x42, 0x75, 0x66, 0x66, 0x65, 0x72, 0x65,
+	0x64, 0x50, 0x6f, 0x73, 0x74, 0x73, 0x12, 0x41, 0x0a, 0x04, 0x78, 0x6d, 0x75, 0x78, 0x18, 0x0b,
+	0x20, 0x01, 0x28, 0x0b, 0x32, 0x2d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x74, 0x72, 0x61, 0x6e,
+	0x73, 0x70, 0x6f, 0x72, 0x74, 0x2e, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2e, 0x73,
+	0x70, 0x6c, 0x69, 0x74, 0x68, 0x74, 0x74, 0x70, 0x2e, 0x58, 0x6d, 0x75, 0x78, 0x43, 0x6f, 0x6e,
+	0x66, 0x69, 0x67, 0x52, 0x04, 0x78, 0x6d, 0x75, 0x78, 0x12, 0x51, 0x0a, 0x10, 0x64, 0x6f, 0x77,
+	0x6e, 0x6c, 0x6f, 0x61, 0x64, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x18, 0x0c, 0x20,
+	0x01, 0x28, 0x0b, 0x32, 0x25, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x74, 0x72, 0x61, 0x6e, 0x73,
+	0x70, 0x6f, 0x72, 0x74, 0x2e, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2e, 0x53, 0x74,
+	0x72, 0x65, 0x61, 0x6d, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x52, 0x10, 0x64, 0x6f, 0x77, 0x6e,
+	0x6c, 0x6f, 0x61, 0x64, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x1a, 0x3a, 0x0a, 0x0c,
+	0x48, 0x65, 0x61, 0x64, 0x65, 0x72, 0x73, 0x45, 0x6e, 0x74, 0x72, 0x79, 0x12, 0x10, 0x0a, 0x03,
+	0x6b, 0x65, 0x79, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03, 0x6b, 0x65, 0x79, 0x12, 0x14,
+	0x0a, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x76,
+	0x61, 0x6c, 0x75, 0x65, 0x3a, 0x02, 0x38, 0x01, 0x42, 0x85, 0x01, 0x0a, 0x25, 0x63, 0x6f, 0x6d,
+	0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2e,
+	0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2e, 0x73, 0x70, 0x6c, 0x69, 0x74, 0x68, 0x74,
+	0x74, 0x70, 0x50, 0x01, 0x5a, 0x36, 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,
+	0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2f, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e,
+	0x65, 0x74, 0x2f, 0x73, 0x70, 0x6c, 0x69, 0x74, 0x68, 0x74, 0x74, 0x70, 0xaa, 0x02, 0x21, 0x58,
+	0x72, 0x61, 0x79, 0x2e, 0x54, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2e, 0x49, 0x6e,
+	0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2e, 0x53, 0x70, 0x6c, 0x69, 0x74, 0x48, 0x74, 0x74, 0x70,
+	0x62, 0x06, 0x70, 0x72, 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.cMaxLifetimeMs:type_name -> xray.transport.internet.splithttp.RangeConfig
-	0,  // 4: xray.transport.internet.splithttp.XmuxConfig.hMaxRequestTimes: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
 	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 cMaxLifetimeMs = 4;
-  RangeConfig hMaxRequestTimes = 5;
+  RangeConfig hMaxRequestTimes = 4;
+  RangeConfig hMaxReusableSecs = 5;
   int64 hKeepAlivePeriod = 6;
 }
 

transport/internet/splithttp/dialer.go

@@ -447,7 +447,8 @@ func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.Me
 
 			lastWrite = time.Now()
 
-			if xmuxClient != nil && xmuxClient.LeftRequests.Add(-1) <= 0 {
+			if xmuxClient != nil && (xmuxClient.LeftRequests.Add(-1) <= 0 ||
+				(xmuxClient.UnreusableAt != time.Time{} && lastWrite.After(xmuxClient.UnreusableAt))) {
 				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
-	expirationTime time.Time
-	LeftRequests   atomic.Int32
+	XmuxConn     XmuxConn
+	OpenUsage    atomic.Int32
+	leftUsage    int32
+	LeftRequests atomic.Int32
+	UnreusableAt time.Time
 }
 
 type XmuxManager struct {
@@ -43,20 +43,19 @@ func NewXmuxManager(xmuxConfig XmuxConfig, newConnFunc func() XmuxConn) *XmuxMan
 
 func (m *XmuxManager) newXmuxClient() *XmuxClient {
 	xmuxClient := &XmuxClient{
-		XmuxConn:       m.newConnFunc(),
-		leftUsage:      -1,
-		expirationTime: time.UnixMilli(0),
+		XmuxConn:  m.newConnFunc(),
+		leftUsage: -1,
 	}
 	if x := m.xmuxConfig.GetNormalizedCMaxReuseTimes().rand(); x > 0 {
 		xmuxClient.leftUsage = x - 1
 	}
-	if x := m.xmuxConfig.GetNormalizedCMaxLifetimeMs().rand(); x > 0 {
-		xmuxClient.expirationTime = time.Now().Add(time.Duration(x) * time.Millisecond)
-	}
 	xmuxClient.LeftRequests.Store(math.MaxInt32)
-	if x := m.xmuxConfig.GetNormalizedCMaxRequestTimes().rand(); x > 0 {
+	if x := m.xmuxConfig.GetNormalizedHMaxRequestTimes().rand(); x > 0 {
 		xmuxClient.LeftRequests.Store(x)
 	}
+	if x := m.xmuxConfig.GetNormalizedHMaxReusableSecs().rand(); x > 0 {
+		xmuxClient.UnreusableAt = time.Now().Add(time.Duration(x) * time.Second)
+	}
 	m.xmuxClients = append(m.xmuxClients, xmuxClient)
 	return xmuxClient
 }
@@ -66,13 +65,13 @@ func (m *XmuxManager) GetXmuxClient(ctx context.Context) *XmuxClient { // when l
 		xmuxClient := m.xmuxClients[i]
 		if xmuxClient.XmuxConn.IsClosed() ||
 			xmuxClient.leftUsage == 0 ||
-			(xmuxClient.expirationTime != time.UnixMilli(0) && time.Now().After(xmuxClient.expirationTime)) ||
-			xmuxClient.LeftRequests.Load() <= 0 {
+			xmuxClient.LeftRequests.Load() <= 0 ||
+			(xmuxClient.UnreusableAt != time.Time{} && time.Now().After(xmuxClient.UnreusableAt)) {
 			errors.LogDebug(ctx, "XMUX: removing xmuxClient, IsClosed() = ", xmuxClient.XmuxConn.IsClosed(),
 				", OpenUsage = ", xmuxClient.OpenUsage.Load(),
 				", leftUsage = ", xmuxClient.leftUsage,
-				", expirationTime = ", xmuxClient.expirationTime,
-				", LeftRequests = ", xmuxClient.LeftRequests.Load())
+				", LeftRequests = ", xmuxClient.LeftRequests.Load(),
+				", UnreusableAt = ", xmuxClient.UnreusableAt)
 			m.xmuxClients = append(m.xmuxClients[:i], m.xmuxClients[i+1:]...)
 		} else {
 			i++