and httpin

https://github.com/XTLS/Xray-core/pull/5009#issuecomment-3195718690

Replaces 105b306d07

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -7,6 +7,8 @@ body:
       description: |-
         Please check all of the following options to prove that you have read and understood the requirements, otherwise this issue will be closed.
       options:
+        - label: I have read all the comments in the issue template and ensured that this issue meet the requirements.
+          required: true
         - label: I confirm that I have read the documentation, understand the meaning of all the configuration items I wrote, and did not pile up seemingly useful options or default values.
           required: true
         - label: I provided the complete config and logs, rather than just providing the truncated parts based on my own judgment.
@@ -38,6 +40,8 @@ body:
         ### For config
         Please provide the configuration files that can reproduce the problem, including the server and client.
         Don't just paste a big exported config file here. Eliminate useless inbound/outbound, rules, options, this can help determine the problem, if you really want to get help.
+        After removing parts that do not affect reproduction, provide the actual running **complete** file.
+        meaning of complete: This config can be directly used to start the core, **not a truncated part of the config**. For fields like keys, use newly generated valid parameters that have not been actually used to fill in.
 
         ### For logs
         Please set the log level to debug and dnsLog to true first.
@@ -46,42 +50,29 @@ body:
         Provide the log of Xray-core, not the log output by the panel or other things.
 
         ### Finally
-        After removing parts that do not affect reproduction, provide the actual running **complete** file, do not only provide inbound or outbound or a few lines of logs based on your own judgment.
+        The specific content to be filled in each of the following text boxes needs to be placed between ```<details><pre><code>``` and ```</code></pre></details>```, like this
-        Put the content between the preset ```<details><pre><code>``` ```</code></pre></details>``` in the text box.
+        ```
-        If the problem is very clear that only related to one end (such as core startup failure/crash after correctly writing the config according to the documents), N/A can be filled in for unnecessary areas below.
+        <details><pre><code>
+        (config)
+        </code></pre></details>
+        ```
   - type: textarea
     attributes:
       label: Client config
-      value: |-
-        <details><pre><code>
-
-        </code></pre></details>
     validations:
       required: true
   - type: textarea
     attributes:
       label: Server config
-      value: |-
-        <details><pre><code>
-
-        </code></pre></details>
     validations:
       required: true
   - type: textarea
     attributes:
       label: Client log
-      value: |-
-        <details><pre><code>
-
-        </code></pre></details>
     validations:
       required: true
   - type: textarea
     attributes:
       label: Server log
-      value: |-
-        <details><pre><code>
-
-        </code></pre></details>
     validations:
       required: true

.github/ISSUE_TEMPLATE/bug_report_zh.yml

@@ -7,6 +7,8 @@ body:
       description: |-
         请勾选以下所有选项以证明您已经阅读并理解了以下要求，否则该 issue 将被关闭。
       options:
+        - label: 我读完了 issue 模板中的所有注释，确保填写符合要求。
+          required: true
         - label: 我保证阅读了文档，了解所有我编写的配置文件项的含义，而不是大量堆砌看似有用的选项或默认值。
           required: true
         - label: 我提供了完整的配置文件和日志，而不是出于自己的判断只给出截取的部分。
@@ -38,6 +40,8 @@ body:
         ### 对于配置文件
         请提供可以重现问题的配置文件，包括服务端和客户端。
         不要直接在这里黏贴一大段导出的 config 文件。去掉无用的出入站、规则、选项，这可以帮助确定问题，如果你真的想得到帮助。
+        在去掉不影响复现的部分后，提供实际运行的**完整**文件。
+        完整的含义：可以直接使用这个配置启动核心，**不是截取的部分配置**。对于密钥等参数使用重新生成未实际使用的有效参数填充。
         
         ### 对于日志
         请先将日志等级设置为 debug, dnsLog 设置为true.
@@ -46,42 +50,29 @@ body:
         提供 Xray-core 的日志，而不是面板或者别的东西输出的日志。
 
         ### 最后
-        在去掉不影响复现的部分后，提供实际运行的**完整**文件，不要出于自己的判断只提供入站出站或者几行日志。
+        把下面的每格具体内容需要放在 ```<details><pre><code>``` 和 ```</code></pre></details>``` 中间，如
-        把内容放在文本框预置的 ```<details><pre><code>``` 和 ```</code></pre></details>``` 中间。
+        ```
-        如果问题十分明确只出现在某一端(如按文档正确编写配置后核心启动失败/崩溃)，可以在下面不需要的项目填入N/A.
+        <details><pre><code>
+        (config)
+        </code></pre></details>
+        ```
   - type: textarea
     attributes:
       label: 客户端配置
-      value: |-
-        <details><pre><code>
-
-        </code></pre></details>
     validations:
       required: true
   - type: textarea
     attributes:
       label: 服务端配置
-      value: |-
-        <details><pre><code>
-
-        </code></pre></details>
     validations:
       required: true
   - type: textarea
     attributes:
       label: 客户端日志
-      value: |-
-        <details><pre><code>
-
-        </code></pre></details>
     validations:
       required: true
   - type: textarea
     attributes:
       label: 服务端日志
-      value: |-
-        <details><pre><code>
-
-        </code></pre></details>
     validations:
       required: true

app/router/command/command.pb.go

@@ -44,6 +44,7 @@ type RoutingContext struct {
 	OutboundTag       string            `protobuf:"bytes,12,opt,name=OutboundTag,proto3" json:"OutboundTag,omitempty"`
 	LocalIPs          [][]byte          `protobuf:"bytes,13,rep,name=LocalIPs,proto3" json:"LocalIPs,omitempty"`
 	LocalPort         uint32            `protobuf:"varint,14,opt,name=LocalPort,proto3" json:"LocalPort,omitempty"`
+	VlessRoute        uint32            `protobuf:"varint,15,opt,name=VlessRoute,proto3" json:"VlessRoute,omitempty"`
 }
 
 func (x *RoutingContext) Reset() {
@@ -174,6 +175,13 @@ func (x *RoutingContext) GetLocalPort() uint32 {
 	return 0
 }
 
+func (x *RoutingContext) GetVlessRoute() uint32 {
+	if x != nil {
+		return x.VlessRoute
+	}
+	return 0
+}
+
 // SubscribeRoutingStatsRequest subscribes to routing statistics channel if
 // opened by xray-core.
 // * FieldSelectors selects a subset of fields in routing statistics to return.
@@ -843,7 +851,7 @@ var file_app_router_command_command_proto_rawDesc = []byte{
 	0x6d, 0x6f, 0x6e, 0x2f, 0x6e, 0x65, 0x74, 0x2f, 0x6e, 0x65, 0x74, 0x77, 0x6f, 0x72, 0x6b, 0x2e,
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@@ -877,7 +885,9 @@ var file_app_router_command_command_proto_rawDesc = []byte{
 	0x6c, 0x49, 0x50, 0x73, 0x18, 0x0d, 0x20, 0x03, 0x28, 0x0c, 0x52, 0x08, 0x4c, 0x6f, 0x63, 0x61,
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 	0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x3a, 0x02, 0x38,

app/router/command/command.proto

@@ -27,6 +27,7 @@ message RoutingContext {
   string OutboundTag = 12;
   repeated bytes LocalIPs = 13;
   uint32 LocalPort = 14;
+  uint32 VlessRoute = 15;
 }
 
 // SubscribeRoutingStatsRequest subscribes to routing statistics channel if

app/router/command/config.go

@@ -36,6 +36,10 @@ func (c routingContext) GetLocalPort() net.Port {
 	return net.Port(c.RoutingContext.GetLocalPort())
 }
 
+func (c routingContext) GetVlessRoute() net.Port {
+	return net.Port(c.RoutingContext.GetVlessRoute())
+}
+
 func (c routingContext) GetRuleTag() string {
 	return ""
 }

app/router/condition.go

@@ -166,6 +166,8 @@ func (v *PortMatcher) Apply(ctx routing.Context) bool {
 		return v.port.Contains(ctx.GetSourcePort())
 	case "target":
 		return v.port.Contains(ctx.GetTargetPort())
+	case "vlessRoute":
+		return v.port.Contains(ctx.GetVlessRoute())
 	default:
 		panic("unreachable, asType should be local or source or target")
 	}

app/router/config.go

@@ -45,6 +45,10 @@ func (rr *RoutingRule) BuildCondition() (Condition, error) {
 		conds.Add(NewUserMatcher(rr.UserEmail))
 	}
 
+	if rr.VlessRouteList != nil {
+		conds.Add(NewPortMatcher(rr.VlessRouteList, "vlessRoute"))
+	}
+
 	if len(rr.InboundTag) > 0 {
 		conds.Add(NewInboundTagMatcher(rr.InboundTag))
 	}

app/router/config.pb.go

@@ -493,6 +493,7 @@ type RoutingRule struct {
 	Attributes     map[string]string `protobuf:"bytes,15,rep,name=attributes,proto3" json:"attributes,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
 	LocalGeoip     []*GeoIP          `protobuf:"bytes,17,rep,name=local_geoip,json=localGeoip,proto3" json:"local_geoip,omitempty"`
 	LocalPortList  *net.PortList     `protobuf:"bytes,18,opt,name=local_port_list,json=localPortList,proto3" json:"local_port_list,omitempty"`
+	VlessRouteList *net.PortList     `protobuf:"bytes,20,opt,name=vless_route_list,json=vlessRouteList,proto3" json:"vless_route_list,omitempty"`
 }
 
 func (x *RoutingRule) Reset() {
@@ -637,6 +638,13 @@ func (x *RoutingRule) GetLocalPortList() *net.PortList {
 	return nil
 }
 
+func (x *RoutingRule) GetVlessRouteList() *net.PortList {
+	if x != nil {
+		return x.VlessRouteList
+	}
+	return nil
+}
+
 type isRoutingRule_TargetTag interface {
 	isRoutingRule_TargetTag()
 }
@@ -1077,7 +1085,7 @@ var file_app_router_config_proto_rawDesc = []byte{
 	0x6f, 0x53, 0x69, 0x74, 0x65, 0x4c, 0x69, 0x73, 0x74, 0x12, 0x2e, 0x0a, 0x05, 0x65, 0x6e, 0x74,
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@@ -1123,66 +1131,71 @@ var file_app_router_config_proto_rawDesc = []byte{
 	0x73, 0x74, 0x18, 0x12, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x19, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e,
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+	0x74, 0x6f, 0x33,
 }
 
 var (
@@ -1235,16 +1248,17 @@ var file_app_router_config_proto_depIdxs = []int32{
 	14, // 12: xray.app.router.RoutingRule.attributes:type_name -> xray.app.router.RoutingRule.AttributesEntry
 	4,  // 13: xray.app.router.RoutingRule.local_geoip:type_name -> xray.app.router.GeoIP
 	15, // 14: xray.app.router.RoutingRule.local_port_list:type_name -> xray.common.net.PortList
-	17, // 15: xray.app.router.BalancingRule.strategy_settings:type_name -> xray.common.serial.TypedMessage
+	15, // 15: xray.app.router.RoutingRule.vless_route_list:type_name -> xray.common.net.PortList
-	10, // 16: xray.app.router.StrategyLeastLoadConfig.costs:type_name -> xray.app.router.StrategyWeight
+	17, // 16: xray.app.router.BalancingRule.strategy_settings:type_name -> xray.common.serial.TypedMessage
-	1,  // 17: xray.app.router.Config.domain_strategy:type_name -> xray.app.router.Config.DomainStrategy
+	10, // 17: xray.app.router.StrategyLeastLoadConfig.costs:type_name -> xray.app.router.StrategyWeight
-	8,  // 18: xray.app.router.Config.rule:type_name -> xray.app.router.RoutingRule
+	1,  // 18: xray.app.router.Config.domain_strategy:type_name -> xray.app.router.Config.DomainStrategy
-	9,  // 19: xray.app.router.Config.balancing_rule:type_name -> xray.app.router.BalancingRule
+	8,  // 19: xray.app.router.Config.rule:type_name -> xray.app.router.RoutingRule
-	20, // [20:20] is the sub-list for method output_type
+	9,  // 20: xray.app.router.Config.balancing_rule:type_name -> xray.app.router.BalancingRule
-	20, // [20:20] is the sub-list for method input_type
+	21, // [21:21] is the sub-list for method output_type
-	20, // [20:20] is the sub-list for extension type_name
+	21, // [21:21] is the sub-list for method input_type
-	20, // [20:20] is the sub-list for extension extendee
+	21, // [21:21] is the sub-list for extension type_name
-	0,  // [0:20] is the sub-list for field type_name
+	21, // [21:21] is the sub-list for extension extendee
+	0,  // [0:21] is the sub-list for field type_name
 }
 
 func init() { file_app_router_config_proto_init() }

app/router/config.proto

@@ -111,6 +111,8 @@ message RoutingRule {
 
   repeated GeoIP local_geoip = 17;
   xray.common.net.PortList local_port_list = 18;
+
+  xray.common.net.PortList vless_route_list = 20;
 }
 
 message BalancingRule {

common/mux/server.go

@@ -118,9 +118,7 @@ func (w *ServerWorker) handleStatusKeepAlive(meta *FrameMetadata, reader *buf.Bu
 }
 
 func (w *ServerWorker) handleStatusNew(ctx context.Context, meta *FrameMetadata, reader *buf.BufferedReader) error {
-	// deep-clone outbounds because it is going to be mutated concurrently
+	ctx = session.SubContextFromMuxInbound(ctx)
-	// (Target and OriginalTarget)
-	ctx = session.ContextCloneOutboundsAndContent(ctx)
 	errors.LogInfo(ctx, "received request for ", meta.Target)
 	{
 		msg := &log.AccessMessage{

common/session/context.go

@@ -16,15 +16,15 @@ const (
 	inboundSessionKey         ctx.SessionKey = 1
 	outboundSessionKey        ctx.SessionKey = 2
 	contentSessionKey         ctx.SessionKey = 3
-	muxPreferredSessionKey    ctx.SessionKey = 4
+	muxPreferredSessionKey    ctx.SessionKey = 4 // unused
-	sockoptSessionKey         ctx.SessionKey = 5
+	sockoptSessionKey         ctx.SessionKey = 5 // used by dokodemo to only receive sockopt.Mark
-	trackedConnectionErrorKey ctx.SessionKey = 6
+	trackedConnectionErrorKey ctx.SessionKey = 6 // used by observer to get outbound error
-	dispatcherKey             ctx.SessionKey = 7
+	dispatcherKey             ctx.SessionKey = 7 // used by ss2022 inbounds to get dispatcher
-	timeoutOnlyKey            ctx.SessionKey = 8
+	timeoutOnlyKey            ctx.SessionKey = 8 // mux context's child contexts to only cancel when its own traffic times out
-	allowedNetworkKey         ctx.SessionKey = 9
+	allowedNetworkKey         ctx.SessionKey = 9 // muxcool server control incoming request tcp/udp
-	handlerSessionKey         ctx.SessionKey = 10
+	handlerSessionKey         ctx.SessionKey = 10 // unused
-	mitmAlpn11Key             ctx.SessionKey = 11
+	mitmAlpn11Key             ctx.SessionKey = 11 // used by TLS dialer
-	mitmServerNameKey         ctx.SessionKey = 12
+	mitmServerNameKey         ctx.SessionKey = 12 // used by TLS dialer
 )
 
 func ContextWithInbound(ctx context.Context, inbound *Inbound) context.Context {
@@ -42,18 +42,8 @@ func ContextWithOutbounds(ctx context.Context, outbounds []*Outbound) context.Co
 	return context.WithValue(ctx, outboundSessionKey, outbounds)
 }
 
-func ContextCloneOutboundsAndContent(ctx context.Context) context.Context {
+func SubContextFromMuxInbound(ctx context.Context) context.Context {
-	outbounds := OutboundsFromContext(ctx)
+	newOutbounds := []*Outbound{{}}
-	newOutbounds := make([]*Outbound, len(outbounds))
-	for i, ob := range outbounds {
-		if ob == nil {
-			continue
-		}
-
-		// copy outbound by value
-		v := *ob
-		newOutbounds[i] = &v
-	}
 
 	content := ContentFromContext(ctx)
 	newContent := Content{}

common/session/session.go

@@ -46,9 +46,11 @@ type Inbound struct {
 	Name string
 	// User is the user that authenticates for the inbound. May be nil if the protocol allows anonymous traffic.
 	User *protocol.MemoryUser
-	// Conn is actually internet.Connection. May be nil.
+	// VlessRoute is the user-sent VLESS UUID's 7th<<8 | 8th bytes.
+	VlessRoute net.Port
+	// Used by splice copy. Conn is actually internet.Connection. May be nil.
 	Conn net.Conn
-	// Timer of the inbound buf copier. May be nil.
+	// Used by splice copy. Timer of the inbound buf copier. May be nil.
 	Timer *signal.ActivityTimer
 	// CanSpliceCopy is a property for this connection
 	// 1 = can, 2 = after processing protocol info should be able to, 3 = cannot
@@ -67,31 +69,33 @@ type Outbound struct {
 	Tag string
 	// Name of the outbound proxy that handles the connection.
 	Name string
-	// Conn is actually internet.Connection. May be nil. It is currently nil for outbound with proxySettings
+	// Unused. Conn is actually internet.Connection. May be nil. It is currently nil for outbound with proxySettings
 	Conn net.Conn
 	// CanSpliceCopy is a property for this connection
 	// 1 = can, 2 = after processing protocol info should be able to, 3 = cannot
 	CanSpliceCopy int
 }
 
-// SniffingRequest controls the behavior of content sniffing.
+// SniffingRequest controls the behavior of content sniffing. They are from inbound config. Read-only
 type SniffingRequest struct {
-	ExcludeForDomain               []string // read-only once set
+	ExcludeForDomain               []string
-	OverrideDestinationForProtocol []string // read-only once set
+	OverrideDestinationForProtocol []string
 	Enabled                        bool
 	MetadataOnly                   bool
 	RouteOnly                      bool
 }
 
-// Content is the metadata of the connection content.
+// Content is the metadata of the connection content. Mainly used for routing.
 type Content struct {
 	// Protocol of current content.
 	Protocol string
 
 	SniffingRequest SniffingRequest
 
+	// HTTP traffic sniffed headers
 	Attributes map[string]string
 
+	// SkipDNSResolve is set from DNS module. the DOH remote server maybe a domain name, this prevents cycle resolving dead loop
 	SkipDNSResolve bool
 }
 

features/routing/context.go

@@ -41,6 +41,9 @@ type Context interface {
 	// GetUser returns the user email from the connection content, if exists.
 	GetUser() string
 
+	// GetVlessRoute returns the user-sent VLESS UUID's 7th<<8 | 8th bytes, if exists.
+	GetVlessRoute() net.Port
+
 	// GetAttributes returns extra attributes from the conneciont content.
 	GetAttributes() map[string]string
 

features/routing/session/context.go

@@ -128,6 +128,14 @@ func (ctx *Context) GetUser() string {
 	return ctx.Inbound.User.Email
 }
 
+// GetVlessRoute implements routing.Context.
+func (ctx *Context) GetVlessRoute() net.Port {
+	if ctx.Inbound == nil {
+		return 0
+	}
+	return ctx.Inbound.VlessRoute
+}
+
 // GetAttributes implements routing.Context.
 func (ctx *Context) GetAttributes() map[string]string {
 	if ctx.Content == nil {

infra/conf/router.go

@@ -531,6 +531,7 @@ func parseFieldRule(msg json.RawMessage) (*router.RoutingRule, error) {
 		Source     *StringList       `json:"source"`
 		SourcePort *PortList         `json:"sourcePort"`
 		User       *StringList       `json:"user"`
+		VlessRoute *PortList         `json:"vlessRoute"`
 		InboundTag *StringList       `json:"inboundTag"`
 		Protocols  *StringList       `json:"protocol"`
 		Attributes map[string]string `json:"attrs"`
@@ -628,6 +629,10 @@ func parseFieldRule(msg json.RawMessage) (*router.RoutingRule, error) {
 		}
 	}
 
+	if rawFieldRule.VlessRoute != nil {
+		rule.VlessRouteList = rawFieldRule.VlessRoute.Build()
+	}
+
 	if rawFieldRule.InboundTag != nil {
 		for _, s := range *rawFieldRule.InboundTag {
 			rule.InboundTag = append(rule.InboundTag, s)

proxy/http/server.go

@@ -95,6 +95,9 @@ func (s *Server) ProcessWithFirstbyte(ctx context.Context, network net.Network,
 	inbound.User = &protocol.MemoryUser{
 		Level: s.config.UserLevel,
 	}
+	if isTransportConn(conn) {
+		inbound.CanSpliceCopy = 3
+	}
 	var reader *bufio.Reader
 	if len(firstbyte) > 0 {
 		readerWithoutFirstbyte := bufio.NewReaderSize(readerOnly{conn}, buf.Size)
@@ -207,7 +210,9 @@ func (s *Server) handleConnect(ctx context.Context, _ *http.Request, reader *buf
 	}
 
 	responseDone := func() error {
-		inbound.CanSpliceCopy = 1
+		if inbound.CanSpliceCopy == 2 {
+			inbound.CanSpliceCopy = 1
+		}
 		defer timer.SetTimeout(plcy.Timeouts.UplinkOnly)
 
 		v2writer := buf.NewWriter(conn)
@@ -370,6 +375,20 @@ func readResponseAndHandle100Continue(r *bufio.Reader, req *http.Request, writer
 	return http.ReadResponse(r, req)
 }
 
+// isTransportConn return false if the conn is a raw tcp conn without transport or tls, can process splice copy
+func isTransportConn(conn stat.Connection) bool {
+	if conn != nil {
+		statConn, ok := conn.(*stat.CounterConnection)
+		if ok {
+			conn = statConn.Connection
+		}
+		if _, ok := conn.(*net.TCPConn); ok {
+			return false
+		}
+	}
+	return true
+}
+
 func init() {
 	common.Must(common.RegisterConfig((*ServerConfig)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
 		return NewServer(ctx, config.(*ServerConfig))

proxy/socks/server.go

@@ -75,6 +75,9 @@ func (s *Server) Process(ctx context.Context, network net.Network, conn stat.Con
 	inbound.User = &protocol.MemoryUser{
 		Level: s.config.UserLevel,
 	}
+	if isTransportConn(conn) {
+		inbound.CanSpliceCopy = 3
+	}
 
 	switch network {
 	case net.Network_TCP:
@@ -199,7 +202,9 @@ func (s *Server) transport(ctx context.Context, reader io.Reader, writer io.Writ
 	}
 
 	responseDone := func() error {
-		inbound.CanSpliceCopy = 1
+		if inbound.CanSpliceCopy == 2 {
+			inbound.CanSpliceCopy = 1
+		}
 		defer timer.SetTimeout(plcy.Timeouts.UplinkOnly)
 
 		v2writer := buf.NewWriter(writer)
@@ -259,7 +264,9 @@ func (s *Server) handleUDPPayload(ctx context.Context, conn stat.Connection, dis
 	if inbound != nil && inbound.Source.IsValid() {
 		errors.LogInfo(ctx, "client UDP connection from ", inbound.Source)
 	}
-	inbound.CanSpliceCopy = 1
+	if inbound.CanSpliceCopy == 2 {
+		inbound.CanSpliceCopy = 1
+	}
 
 	var dest *net.Destination
 
@@ -308,6 +315,20 @@ func (s *Server) handleUDPPayload(ctx context.Context, conn stat.Connection, dis
 	}
 }
 
+// isTransportConn return false if the conn is a raw tcp conn without transport or tls, can process splice copy
+func isTransportConn(conn stat.Connection) bool {
+	if conn != nil {
+		statConn, ok := conn.(*stat.CounterConnection)
+		if ok {
+			conn = statConn.Connection
+		}
+		if _, ok := conn.(*net.TCPConn); ok {
+			return false
+		}
+	}
+	return true
+}
+
 func init() {
 	common.Must(common.RegisterConfig((*ServerConfig)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
 		return NewServer(ctx, config.(*ServerConfig))

proxy/vless/encoding/encoding.go

@@ -62,7 +62,7 @@ func EncodeRequestHeader(writer io.Writer, request *protocol.RequestHeader, requ
 }
 
 // DecodeRequestHeader decodes and returns (if successful) a RequestHeader from an input stream.
-func DecodeRequestHeader(isfb bool, first *buf.Buffer, reader io.Reader, validator vless.Validator) (*protocol.RequestHeader, *Addons, bool, error) {
+func DecodeRequestHeader(isfb bool, first *buf.Buffer, reader io.Reader, validator vless.Validator) ([]byte, *protocol.RequestHeader, *Addons, bool, error) {
 	buffer := buf.StackNew()
 	defer buffer.Release()
 
@@ -72,7 +72,7 @@ func DecodeRequestHeader(isfb bool, first *buf.Buffer, reader io.Reader, validat
 		request.Version = first.Byte(0)
 	} else {
 		if _, err := buffer.ReadFullFrom(reader, 1); err != nil {
-			return nil, nil, false, errors.New("failed to read request version").Base(err)
+			return nil, nil, nil, false, errors.New("failed to read request version").Base(err)
 		}
 		request.Version = buffer.Byte(0)
 	}
@@ -87,13 +87,13 @@ func DecodeRequestHeader(isfb bool, first *buf.Buffer, reader io.Reader, validat
 		} else {
 			buffer.Clear()
 			if _, err := buffer.ReadFullFrom(reader, 16); err != nil {
-				return nil, nil, false, errors.New("failed to read request user id").Base(err)
+				return nil, nil, nil, false, errors.New("failed to read request user id").Base(err)
 			}
 			copy(id[:], buffer.Bytes())
 		}
 
 		if request.User = validator.Get(id); request.User == nil {
-			return nil, nil, isfb, errors.New("invalid request user id")
+			return nil, nil, nil, isfb, errors.New("invalid request user id")
 		}
 
 		if isfb {
@@ -102,12 +102,12 @@ func DecodeRequestHeader(isfb bool, first *buf.Buffer, reader io.Reader, validat
 
 		requestAddons, err := DecodeHeaderAddons(&buffer, reader)
 		if err != nil {
-			return nil, nil, false, errors.New("failed to decode request header addons").Base(err)
+			return nil, nil, nil, false, errors.New("failed to decode request header addons").Base(err)
 		}
 
 		buffer.Clear()
 		if _, err := buffer.ReadFullFrom(reader, 1); err != nil {
-			return nil, nil, false, errors.New("failed to read request command").Base(err)
+			return nil, nil, nil, false, errors.New("failed to read request command").Base(err)
 		}
 
 		request.Command = protocol.RequestCommand(buffer.Byte(0))
@@ -122,11 +122,11 @@ func DecodeRequestHeader(isfb bool, first *buf.Buffer, reader io.Reader, validat
 			}
 		}
 		if request.Address == nil {
-			return nil, nil, false, errors.New("invalid request address")
+			return nil, nil, nil, false, errors.New("invalid request address")
 		}
-		return request, requestAddons, false, nil
+		return id[:], request, requestAddons, false, nil
 	default:
-		return nil, nil, isfb, errors.New("invalid request version")
+		return nil, nil, nil, isfb, errors.New("invalid request version")
 	}
 }
 

proxy/vless/encoding/encoding_test.go

@@ -45,7 +45,7 @@ func TestRequestSerialization(t *testing.T) {
 	Validator := new(vless.MemoryValidator)
 	Validator.Add(user)
 
-	actualRequest, actualAddons, _, err := DecodeRequestHeader(false, nil, &buffer, Validator)
+	_, actualRequest, actualAddons, _, err := DecodeRequestHeader(false, nil, &buffer, Validator)
 	common.Must(err)
 
 	if r := cmp.Diff(actualRequest, expectedRequest, cmp.AllowUnexported(protocol.ID{})); r != "" {
@@ -86,7 +86,7 @@ func TestInvalidRequest(t *testing.T) {
 	Validator := new(vless.MemoryValidator)
 	Validator.Add(user)
 
-	_, _, _, err := DecodeRequestHeader(false, nil, &buffer, Validator)
+	_, _, _, _, err := DecodeRequestHeader(false, nil, &buffer, Validator)
 	if err == nil {
 		t.Error("nil error")
 	}
@@ -117,7 +117,7 @@ func TestMuxRequest(t *testing.T) {
 	Validator := new(vless.MemoryValidator)
 	Validator.Add(user)
 
-	actualRequest, actualAddons, _, err := DecodeRequestHeader(false, nil, &buffer, Validator)
+	_, actualRequest, actualAddons, _, err := DecodeRequestHeader(false, nil, &buffer, Validator)
 	common.Must(err)
 
 	if r := cmp.Diff(actualRequest, expectedRequest, cmp.AllowUnexported(protocol.ID{})); r != "" {

proxy/vless/inbound/inbound.go

@@ -217,6 +217,7 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
 		Buffer: buf.MultiBuffer{first},
 	}
 
+	var userSentID []byte // not MemoryAccount.ID
 	var request *protocol.RequestHeader
 	var requestAddons *encoding.Addons
 	var err error
@@ -227,7 +228,7 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
 	if isfb && firstLen < 18 {
 		err = errors.New("fallback directly")
 	} else {
-		request, requestAddons, isfb, err = encoding.DecodeRequestHeader(isfb, first, reader, h.validator)
+		userSentID, request, requestAddons, isfb, err = encoding.DecodeRequestHeader(isfb, first, reader, h.validator)
 	}
 
 	if err != nil {
@@ -455,6 +456,7 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
 	}
 	inbound.Name = "vless"
 	inbound.User = request.User
+	inbound.VlessRoute = net.PortFromBytes(userSentID[6:8])
 
 	account := request.User.Account.(*vless.MemoryAccount)
 
@@ -530,7 +532,7 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
 
 	serverReader := link.Reader // .(*pipe.Reader)
 	serverWriter := link.Writer // .(*pipe.Writer)
-	trafficState := proxy.NewTrafficState(account.ID.Bytes())
+	trafficState := proxy.NewTrafficState(userSentID)
 	postRequest := func() error {
 		defer timer.SetTimeout(sessionPolicy.Timeouts.DownlinkOnly)
 

proxy/vless/validator.go

@@ -18,6 +18,12 @@ type Validator interface {
 	GetCount() int64
 }
 
+func ProcessUUID(id [16]byte) [16]byte {
+	id[6] = 0
+	id[7] = 0
+	return id
+}
+
 // MemoryValidator stores valid VLESS users.
 type MemoryValidator struct {
 	// Considering email's usage here, map + sync.Mutex/RWMutex may have better performance.
@@ -33,7 +39,7 @@ func (v *MemoryValidator) Add(u *protocol.MemoryUser) error {
 			return errors.New("User ", u.Email, " already exists.")
 		}
 	}
-	v.users.Store(u.Account.(*MemoryAccount).ID.UUID(), u)
+	v.users.Store(ProcessUUID(u.Account.(*MemoryAccount).ID.UUID()), u)
 	return nil
 }
 
@@ -48,13 +54,13 @@ func (v *MemoryValidator) Del(e string) error {
 		return errors.New("User ", e, " not found.")
 	}
 	v.email.Delete(le)
-	v.users.Delete(u.(*protocol.MemoryUser).Account.(*MemoryAccount).ID.UUID())
+	v.users.Delete(ProcessUUID(u.(*protocol.MemoryUser).Account.(*MemoryAccount).ID.UUID()))
 	return nil
 }
 
 // Get a VLESS user with UUID, nil if user doesn't exist.
 func (v *MemoryValidator) Get(id uuid.UUID) *protocol.MemoryUser {
-	u, _ := v.users.Load(id)
+	u, _ := v.users.Load(ProcessUUID(id))
 	if u != nil {
 		return u.(*protocol.MemoryUser)
 	}

proxy/wireguard/server.go

@@ -7,6 +7,7 @@ import (
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
+	c "github.com/xtls/xray-core/common/ctx"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/log"
 	"github.com/xtls/xray-core/common/net"
@@ -33,7 +34,6 @@ type routingInfo struct {
 	ctx         context.Context
 	dispatcher  routing.Dispatcher
 	inboundTag  *session.Inbound
-	outboundTag *session.Outbound
 	contentTag  *session.Content
 }
 
@@ -78,18 +78,11 @@ func (*Server) Network() []net.Network {
 
 // Process implements proxy.Inbound.
 func (s *Server) Process(ctx context.Context, network net.Network, conn stat.Connection, dispatcher routing.Dispatcher) error {
-	inbound := session.InboundFromContext(ctx)
-	inbound.Name = "wireguard"
-	inbound.CanSpliceCopy = 3
-	outbounds := session.OutboundsFromContext(ctx)
-	ob := outbounds[len(outbounds)-1]
-
 	s.info = routingInfo{
-		ctx:         core.ToBackgroundDetachedContext(ctx),
+		ctx:        ctx,
-		dispatcher:  dispatcher,
+		dispatcher: dispatcher,
-		inboundTag:  session.InboundFromContext(ctx),
+		inboundTag: session.InboundFromContext(ctx),
-		outboundTag: ob,
+		contentTag: session.ContentFromContext(ctx),
-		contentTag:  session.ContentFromContext(ctx),
 	}
 
 	ep, err := s.bindServer.ParseEndpoint(conn.RemoteAddr().String())
@@ -134,6 +127,25 @@ func (s *Server) forwardConnection(dest net.Destination, conn net.Conn) {
 	defer conn.Close()
 
 	ctx, cancel := context.WithCancel(core.ToBackgroundDetachedContext(s.info.ctx))
+	sid := session.NewID()
+	ctx = c.ContextWithID(ctx, sid)
+	inbound := session.Inbound{} // since promiscuousModeHandler mixed-up context, we shallow copy inbound (tag) and content (configs)
+	if s.info.inboundTag != nil {
+		inbound = *s.info.inboundTag
+	}
+	inbound.Name = "wireguard"
+	inbound.CanSpliceCopy = 3
+
+	// overwrite the source to use the tun address for each sub context.
+	// Since gvisor.ForwarderRequest doesn't provide any info to associate the sub-context with the Parent context
+	// Currently we have no way to link to the original source address
+	inbound.Source = net.DestinationFromAddr(conn.RemoteAddr())
+	ctx = session.ContextWithInbound(ctx, &inbound)
+	if s.info.contentTag != nil {
+		ctx = session.ContextWithContent(ctx, s.info.contentTag)
+	}
+	ctx = session.SubContextFromMuxInbound(ctx)
+
 	plcy := s.policyManager.ForLevel(0)
 	timer := signal.CancelAfterInactivity(ctx, cancel, plcy.Timeouts.ConnectionIdle)
 
@@ -144,25 +156,9 @@ func (s *Server) forwardConnection(dest net.Destination, conn net.Conn) {
 		Reason: "",
 	})
 
-	if s.info.inboundTag != nil {
-		ctx = session.ContextWithInbound(ctx, s.info.inboundTag)
-	}
-
-	// what's this?
-	// Session information should not be shared between different connections
-	// why reuse them in server level? This will cause incorrect destoverride and unexpected routing behavior.
-	// Disable it temporarily. Maybe s.info should be removed.
-
-	//	if s.info.outboundTag != nil {
-	//		ctx = session.ContextWithOutbounds(ctx, []*session.Outbound{s.info.outboundTag})
-	//	}
-	//  if s.info.contentTag != nil {
-	//	    ctx = session.ContextWithContent(ctx, s.info.contentTag)
-	//  }
-
 	link, err := s.info.dispatcher.Dispatch(ctx, dest)
 	if err != nil {
-		errors.LogErrorInner(s.info.ctx, err, "dispatch connection")
+		errors.LogErrorInner(ctx, err, "dispatch connection")
 	}
 	defer cancel()
 
@@ -188,7 +184,7 @@ func (s *Server) forwardConnection(dest net.Destination, conn net.Conn) {
 	if err := task.Run(ctx, requestDonePost, responseDone); err != nil {
 		common.Interrupt(link.Reader)
 		common.Interrupt(link.Writer)
-		errors.LogDebugInner(s.info.ctx, err, "connection ends")
+		errors.LogDebugInner(ctx, err, "connection ends")
 		return
 	}
 }