v1.8.15

Add SplitHTTP Transport (#3412 )
Bump docker/build-push-action from 5 to 6 (#3454 )
2025-08-22 09:36:49 +08:00 · 2024-06-18 05:38:04 +00:00 · 2024-06-18 05:36:36 +00:00 · 2024-06-18 05:34:37 +00:00 · 2024-06-16 22:58:45 -04:00 · 2024-06-16 10:51:52 -04:00
175 changed files with 3003 additions and 626 deletions
--- a/.github/ISSUE_TEMPLATE/bug_report.yml
+++ b/.github/ISSUE_TEMPLATE/bug_report.yml
@@ -0,0 +1,87 @@
+name: Bug report
+description: "Submit Xray-core bug"
+body:
+  - type: checkboxes
+    attributes:
+      label: Integrity requirements
+      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 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 searched issues and did not find any similar issues.
+          required: true
+  - type: input
+    attributes:
+      label: Version
+      description: Version of Xray-core
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Description
+      description: Please provide a detailed description of the error. And the information you think valuable.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Reproduction Method
+      description: |-
+        Based on the configuration you provided below, provide the method to reproduce the bug.
+    validations:
+      required: true
+  - type: markdown
+    attributes:
+      value: |-
+        ## Configuration and Log Section
+        
+        ### 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.
+
+        ### For logs
+        Please set the log level to debug first.
+        Restart Xray-core, then operate according to the reproduction method, try to reduce the irrelevant part in the log.
+        Remember to delete parts with personal information (such as UUID and IP).
+        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.
+        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.
+  - 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
--- a/.github/ISSUE_TEMPLATE/bug_report_zh.yml
+++ b/.github/ISSUE_TEMPLATE/bug_report_zh.yml
@@ -0,0 +1,87 @@
+name: bug反馈
+description: "提交 Xray-core bug"
+body:
+  - type: checkboxes
+    attributes:
+      label: 完整性要求
+      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: 我搜索了issues，没有发现已提出的类似问题。
+          required: true
+  - type: input
+    attributes:
+      label: 版本
+      description: 使用的Xray-core版本
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: 描述
+      description: 请提供错误的详细描述。以及你认为有价值的信息。
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: 重现方式
+      description: |-
+        基于你下面提供的配置，提供重现BUG方法。
+    validations:
+      required: true
+  - type: markdown
+    attributes:
+      value: |-
+        ## 配置与日志部分
+        
+        ### 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。
+        
+        ### 对于日志
+        请先将日志等级设置为 debug.
+        重启 Xray-core ，再按复现方式操作，尽量减少日志中的无关部分。
+        记得删除有关个人信息（如UUID与IP）的部分。
+        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.
+  - 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
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -35,7 +35,7 @@ jobs:
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
      - name: Build and push
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
        with:
          context: .
          platforms: linux/amd64,linux/arm64
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -1,5 +1,11 @@
 name: Build and Release

+# NOTE: This Github Actions file depends on the Makefile.
+#       Building the correct package requires the correct binaries generated by the Makefile. To 
+#       ensure the correct output, the Makefile must accept the appropriate input and compile the 
+#       correct file with the correct name. If you need to modify this file, please ensure it won't 
+#       disrupt the Makefile.
+
 on:
  workflow_dispatch:
  release:
@@ -11,14 +17,14 @@ on:
      - "**/*.go"
      - "go.mod"
      - "go.sum"
-      - ".github/workflows/*.yml"
+      - ".github/workflows/release.yml"
  pull_request:
    types: [opened, synchronize, reopened]
    paths:
      - "**/*.go"
      - "go.mod"
      - "go.sum"
-      - ".github/workflows/*.yml"
+      - ".github/workflows/release.yml"
 jobs:
  prepare:
    runs-on: ubuntu-latest
@@ -177,7 +183,7 @@ jobs:
        run: |
          mkdir -p build_assets
          make
-          find . -maxdepth 1 -type f -regex '.*\(wxray\|xray\|xray_softfloat\)\(\|.exe\)' -exec mv {} ./build_assets/ \;
+          find . -maxdepth 1 -type f -regex './\(wxray\|xray\|xray_softfloat\)\(\|.exe\)' -exec mv {} ./build_assets/ \;

      - name: Restore Cache
        uses: actions/cache/restore@v4
@@ -192,6 +198,7 @@ jobs:
          cp ${GITHUB_WORKSPACE}/LICENSE ./build_assets/LICENSE

      - name: Create ZIP archive
+        if: github.event_name == 'release'
        shell: bash
        run: |
          pushd build_assets || exit 1
--- a/20
+++ b/20
@@ -2,6 +2,17 @@ NAME = xray

 VERSION=$(shell git describe --always --dirty)

+# NOTE: This MAKEFILE can be used to build Xray-core locally and in Automatic workflows. It is \
+	provided for convinience in automatic building and functions as a part of it.
+# NOTE: If you need to modify this file, please be aware that:\
+	- This file is not the main Makefile; it only accepts environment variables and builds the \
+	binary.\
+	- Automatic building expects the correct binaries to be built by this Makefile. If you \
+	intend to propose a change to this Makefile, carefully review the file below and ensure \
+	that the change will not accidently break the automatic building:\
+		.github/workflows/release.yml \
+	Otherwise it is recommended to contact the project maintainers.
+
 LDFLAGS = -X github.com/xtls/xray-core/core.build=$(VERSION) -s -w -buildid=
 PARAMS = -trimpath -ldflags "$(LDFLAGS)" -v
 MAIN = ./main
@@ -12,18 +23,15 @@ ADDITION = go build -o w$(NAME).exe -trimpath -ldflags "-H windowsgui $(LDFLAGS)
 else
 OUTPUT = $(NAME)
 endif
-ifeq ($(shell echo "$(GOARCH)" | grep -Pq "(mips|mipsle)" && echo true),true) # 
+ifeq ($(shell echo "$(GOARCH)" | grep -Eq "(mips|mipsle)" && echo true),true) # 
 ADDITION = GOMIPS=softfloat go build -o $(NAME)_softfloat -trimpath -ldflags "$(LDFLAGS)" -v $(MAIN)
 endif
-.PHONY: clean
+.PHONY: clean build

 build:
 	go build -o $(OUTPUT) $(PARAMS) $(MAIN)
 	$(ADDITION)

-install:
-	go build -o $(PREFIX)/bin/$(OUTPUT) $(PARAMS) $(MAIN)
-
 clean:
 	go clean -v -i $(PWD)
-	rm -f xray xray.exe wxray.exe xray_softfloat
+	rm -f xray xray.exe wxray.exe xray_softfloat
--- a/README.md
+++ b/README.md
@@ -21,11 +21,10 @@
 ## Installation

 - Linux Script
-  - [XTLS/Xray-install](https://github.com/XTLS/Xray-install)
-  - [team-cloudchaser/tempest](https://github.com/team-cloudchaser/tempest) (supports [`systemd`](https://systemd.io) and [OpenRC](https://github.com/OpenRC/openrc); Linux-only)
+  - [XTLS/Xray-install](https://github.com/XTLS/Xray-install) (**Official**)
+  - [tempest](https://github.com/team-cloudchaser/tempest) (supports [`systemd`](https://systemd.io) and [OpenRC](https://github.com/OpenRC/openrc); Linux-only)
 - Docker
-  - Official: [ghcr.io/xtls/xray-core](https://ghcr.io/xtls/xray-core) 
-  - [iamybj/docker-xray](https://hub.docker.com/r/iamybj/docker-xray)
+  - [ghcr.io/xtls/xray-core](https://ghcr.io/xtls/xray-core) (**Official**)
  - [teddysun/xray](https://hub.docker.com/r/teddysun/xray)
 - Web Panel
  - [X-UI-English](https://github.com/NidukaAkalanka/x-ui-english), [3X-UI](https://github.com/MHSanaei/3x-ui), [X-UI](https://github.com/alireza0/x-ui), [X-UI](https://github.com/diditra/x-ui)
--- a/app/commander/commander.go
+++ b/app/commander/commander.go
@@ -21,12 +21,14 @@ type Commander struct {
 	services []Service
 	ohm      outbound.Manager
 	tag      string
+	listen   string
 }

 // NewCommander creates a new Commander based on the given config.
 func NewCommander(ctx context.Context, config *Config) (*Commander, error) {
 	c := &Commander{
-		tag: config.Tag,
+		tag:    config.Tag,
+		listen: config.Listen,
 	}

 	common.Must(core.RequireFeatures(ctx, func(om outbound.Manager) {
@@ -66,16 +68,29 @@ func (c *Commander) Start() error {
 	}
 	c.Unlock()

+	var listen = func(listener net.Listener) {
+		if err := c.server.Serve(listener); err != nil {
+			newError("failed to start grpc server").Base(err).AtError().WriteToLog()
+		}
+	}
+
+	if len(c.listen) > 0 {
+		if l, err := net.Listen("tcp", c.listen); err != nil {
+			newError("API server failed to listen on ", c.listen).Base(err).AtError().WriteToLog()
+			return err
+		} else {
+			newError("API server listening on ", l.Addr()).AtInfo().WriteToLog()
+			go listen(l)
+		}
+		return nil
+	}
+
 	listener := &OutboundListener{
 		buffer: make(chan net.Conn, 4),
 		done:   done.New(),
 	}

-	go func() {
-		if err := c.server.Serve(listener); err != nil {
-			newError("failed to start grpc server").Base(err).AtError().WriteToLog()
-		}
-	}()
+	go listen(listener)

 	if err := c.ohm.RemoveHandler(context.Background(), c.tag); err != nil {
 		newError("failed to remove existing handler").WriteToLog()
--- a/app/commander/config.pb.go
+++ b/app/commander/config.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: app/commander/config.proto

 package commander
@@ -29,6 +29,8 @@ type Config struct {

 	// Tag of the outbound handler that handles grpc connections.
 	Tag string `protobuf:"bytes,1,opt,name=tag,proto3" json:"tag,omitempty"`
+	// Network address of commander grpc service.
+	Listen string `protobuf:"bytes,3,opt,name=listen,proto3" json:"listen,omitempty"`
 	// Services that supported by this server. All services must implement Service
 	// interface.
 	Service []*serial.TypedMessage `protobuf:"bytes,2,rep,name=service,proto3" json:"service,omitempty"`
@@ -73,6 +75,13 @@ func (x *Config) GetTag() string {
 	return ""
 }

+func (x *Config) GetListen() string {
+	if x != nil {
+		return x.Listen
+	}
+	return ""
+}
+
 func (x *Config) GetService() []*serial.TypedMessage {
 	if x != nil {
 		return x.Service
@@ -127,20 +136,21 @@ var file_app_commander_config_proto_rawDesc = []byte{
 	0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x65, 0x72,
 	0x1a, 0x21, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2f, 0x73, 0x65, 0x72, 0x69, 0x61, 0x6c, 0x2f,
 	0x74, 0x79, 0x70, 0x65, 0x64, 0x5f, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x2e, 0x70, 0x72,
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+	0x6f, 0x74, 0x6f, 0x22, 0x6e, 0x0a, 0x06, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x10, 0x0a,
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-	0x33,
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+	0x70, 0x70, 0x2f, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x65, 0x72, 0xaa, 0x02, 0x12, 0x58,
+	0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x43, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x65,
+	0x72, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }

 var (
--- a/app/commander/config.proto
+++ b/app/commander/config.proto
@@ -12,6 +12,10 @@ import "common/serial/typed_message.proto";
 message Config {
  // Tag of the outbound handler that handles grpc connections.
  string tag = 1;
+
+  // Network address of commander grpc service.
+  string listen = 3;
+
  // Services that supported by this server. All services must implement Service
  // interface.
  repeated xray.common.serial.TypedMessage service = 2;
--- a/app/dispatcher/config.pb.go
+++ b/app/dispatcher/config.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: app/dispatcher/config.proto

 package dispatcher
--- a/app/dispatcher/default.go
+++ b/app/dispatcher/default.go
@@ -4,6 +4,7 @@ package dispatcher

 import (
 	"context"
+	"regexp"
 	"strings"
 	"sync"
 	"time"
@@ -186,8 +187,20 @@ func (d *DefaultDispatcher) shouldOverride(ctx context.Context, result SniffResu
 		return false
 	}
 	for _, d := range request.ExcludeForDomain {
-		if strings.ToLower(domain) == d {
-			return false
+		if strings.HasPrefix(d, "regexp:") {
+			pattern := d[7:]
+			re, err := regexp.Compile(pattern)
+			if err != nil {
+				newError("Unable to compile regex").WriteToLog(session.ExportIDToError(ctx))
+				continue
+			}
+			if re.MatchString(domain) {
+				return false
+			}
+		} else {
+			if strings.ToLower(domain) == d {
+				return false
+			}
 		}
 	}
 	protocolString := result.Protocol()
@@ -218,11 +231,12 @@ func (d *DefaultDispatcher) Dispatch(ctx context.Context, destination net.Destin
 	if !destination.IsValid() {
 		panic("Dispatcher: Invalid destination.")
 	}
-	ob := session.OutboundFromContext(ctx)
-	if ob == nil {
-		ob = &session.Outbound{}
-		ctx = session.ContextWithOutbound(ctx, ob)
+	outbounds := session.OutboundsFromContext(ctx)
+	if len(outbounds) == 0 {
+		outbounds = []*session.Outbound{{}}
+		ctx = session.ContextWithOutbounds(ctx, outbounds)
 	}
+	ob := outbounds[len(outbounds)-1]
 	ob.OriginalTarget = destination
 	ob.Target = destination
 	content := session.ContentFromContext(ctx)
@@ -274,11 +288,12 @@ func (d *DefaultDispatcher) DispatchLink(ctx context.Context, destination net.De
 	if !destination.IsValid() {
 		return newError("Dispatcher: Invalid destination.")
 	}
-	ob := session.OutboundFromContext(ctx)
-	if ob == nil {
-		ob = &session.Outbound{}
-		ctx = session.ContextWithOutbound(ctx, ob)
+	outbounds := session.OutboundsFromContext(ctx)
+	if len(outbounds) == 0 {
+		outbounds = []*session.Outbound{{}}
+		ctx = session.ContextWithOutbounds(ctx, outbounds)
 	}
+	ob := outbounds[len(outbounds)-1]
 	ob.OriginalTarget = destination
 	ob.Target = destination
 	content := session.ContentFromContext(ctx)
@@ -368,7 +383,8 @@ func sniffer(ctx context.Context, cReader *cachedReader, metadataOnly bool, netw
 	return contentResult, contentErr
 }
 func (d *DefaultDispatcher) routedDispatch(ctx context.Context, link *transport.Link, destination net.Destination) {
-	ob := session.OutboundFromContext(ctx)
+	outbounds := session.OutboundsFromContext(ctx)
+	ob := outbounds[len(outbounds)-1]
 	if hosts, ok := d.dns.(dns.HostsLookup); ok && destination.Address.Family().IsDomain() {
 		proxied := hosts.LookupHosts(ob.Target.String())
 		if proxied != nil {
@@ -425,6 +441,7 @@ func (d *DefaultDispatcher) routedDispatch(ctx context.Context, link *transport.
 		return
 	}

+	ob.Tag = handler.Tag()
 	if accessMessage := log.AccessMessageFromContext(ctx); accessMessage != nil {
 		if tag := handler.Tag(); tag != "" {
 			if inTag == "" {
--- a/app/dispatcher/fakednssniffer.go
+++ b/app/dispatcher/fakednssniffer.go
@@ -26,11 +26,12 @@ func newFakeDNSSniffer(ctx context.Context) (protocolSnifferWithMetadata, error)
 		return protocolSnifferWithMetadata{}, errNotInit
 	}
 	return protocolSnifferWithMetadata{protocolSniffer: func(ctx context.Context, bytes []byte) (SniffResult, error) {
-		Target := session.OutboundFromContext(ctx).Target
-		if Target.Network == net.Network_TCP || Target.Network == net.Network_UDP {
-			domainFromFakeDNS := fakeDNSEngine.GetDomainFromFakeDNS(Target.Address)
+		outbounds := session.OutboundsFromContext(ctx)
+		ob := outbounds[len(outbounds) - 1]
+		if ob.Target.Network == net.Network_TCP || ob.Target.Network == net.Network_UDP {
+			domainFromFakeDNS := fakeDNSEngine.GetDomainFromFakeDNS(ob.Target.Address)
 			if domainFromFakeDNS != "" {
-				newError("fake dns got domain: ", domainFromFakeDNS, " for ip: ", Target.Address.String()).WriteToLog(session.ExportIDToError(ctx))
+				newError("fake dns got domain: ", domainFromFakeDNS, " for ip: ", ob.Target.Address.String()).WriteToLog(session.ExportIDToError(ctx))
 				return &fakeDNSSniffResult{domainName: domainFromFakeDNS}, nil
 			}
 		}
@@ -38,7 +39,7 @@ func newFakeDNSSniffer(ctx context.Context) (protocolSnifferWithMetadata, error)
 		if ipAddressInRangeValueI := ctx.Value(ipAddressInRange); ipAddressInRangeValueI != nil {
 			ipAddressInRangeValue := ipAddressInRangeValueI.(*ipAddressInRangeOpt)
 			if fkr0, ok := fakeDNSEngine.(dns.FakeDNSEngineRev0); ok {
-				inPool := fkr0.IsIPInIPPool(Target.Address)
+				inPool := fkr0.IsIPInIPPool(ob.Target.Address)
 				ipAddressInRangeValue.addressInRange = &inPool
 			}
 		}
--- a/app/dns/config.pb.go
+++ b/app/dns/config.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: app/dns/config.proto

 package dns
--- a/app/dns/fakedns/fakedns.pb.go
+++ b/app/dns/fakedns/fakedns.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: app/dns/fakedns/fakedns.proto

 package fakedns
--- a/app/log/command/config.pb.go
+++ b/app/log/command/config.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: app/log/command/config.proto

 package command
--- a/app/log/command/config_grpc.pb.go
+++ b/app/log/command/config_grpc.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
 // versions:
 // - protoc-gen-go-grpc v1.3.0
-// - protoc             v4.23.1
+// - protoc             v5.27.0
 // source: app/log/command/config.proto

 package command
--- a/app/log/config.pb.go
+++ b/app/log/config.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: app/log/config.proto

 package log
--- a/app/metrics/config.pb.go
+++ b/app/metrics/config.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: app/metrics/config.proto

 package metrics
--- a/app/observatory/burst/config.pb.go
+++ b/app/observatory/burst/config.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: app/observatory/burst/config.proto

 package burst
--- a/app/observatory/command/command.pb.go
+++ b/app/observatory/command/command.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: app/observatory/command/command.proto

 package command
--- a/app/observatory/command/command_grpc.pb.go
+++ b/app/observatory/command/command_grpc.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
 // versions:
 // - protoc-gen-go-grpc v1.3.0
-// - protoc             v4.23.1
+// - protoc             v5.27.0
 // source: app/observatory/command/command.proto

 package command
--- a/app/observatory/config.pb.go
+++ b/app/observatory/config.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: app/observatory/config.proto

 package observatory
--- a/app/policy/config.pb.go
+++ b/app/policy/config.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: app/policy/config.proto

 package policy
--- a/app/proxyman/command/command.pb.go
+++ b/app/proxyman/command/command.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: app/proxyman/command/command.proto

 package command
--- a/app/proxyman/command/command_grpc.pb.go
+++ b/app/proxyman/command/command_grpc.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
 // versions:
 // - protoc-gen-go-grpc v1.3.0
-// - protoc             v4.23.1
+// - protoc             v5.27.0
 // source: app/proxyman/command/command.proto

 package command
--- a/app/proxyman/config.pb.go
+++ b/app/proxyman/config.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: app/proxyman/config.proto

 package proxyman
--- a/app/proxyman/inbound/worker.go
+++ b/app/proxyman/inbound/worker.go
@@ -60,7 +60,7 @@ func (w *tcpWorker) callback(conn stat.Connection) {
 	sid := session.NewID()
 	ctx = session.ContextWithID(ctx, sid)

-	var outbound = &session.Outbound{}
+	outbounds := []*session.Outbound{{}}
 	if w.recvOrigDest {
 		var dest net.Destination
 		switch getTProxyType(w.stream) {
@@ -75,10 +75,10 @@ func (w *tcpWorker) callback(conn stat.Connection) {
 			dest = net.DestinationFromAddr(conn.LocalAddr())
 		}
 		if dest.IsValid() {
-			outbound.Target = dest
+			outbounds[0].Target = dest
 		}
 	}
-	ctx = session.ContextWithOutbound(ctx, outbound)
+	ctx = session.ContextWithOutbounds(ctx, outbounds)

 	if w.uplinkCounter != nil || w.downlinkCounter != nil {
 		conn = &stat.CounterConnection{
@@ -308,11 +308,11 @@ func (w *udpWorker) callback(b *buf.Buffer, source net.Destination, originalDest
 			sid := session.NewID()
 			ctx = session.ContextWithID(ctx, sid)

+			outbounds := []*session.Outbound{{}}
 			if originalDest.IsValid() {
-				ctx = session.ContextWithOutbound(ctx, &session.Outbound{
-					Target: originalDest,
-				})
+				outbounds[0].Target = originalDest
 			}
+			ctx = session.ContextWithOutbounds(ctx, outbounds)
 			ctx = session.ContextWithInbound(ctx, &session.Inbound{
 				Source:  source,
 				Gateway: net.UDPDestination(w.address, w.port),
--- a/app/proxyman/outbound/handler.go
+++ b/app/proxyman/outbound/handler.go
@@ -2,12 +2,8 @@ package outbound

 import (
 	"context"
+	"crypto/rand"
 	"errors"
-	"io"
-	"math/rand"
-	gonet "net"
-	"os"
-
 	"github.com/xtls/xray-core/app/proxyman"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
@@ -25,6 +21,10 @@ import (
 	"github.com/xtls/xray-core/transport/internet/stat"
 	"github.com/xtls/xray-core/transport/internet/tls"
 	"github.com/xtls/xray-core/transport/pipe"
+	"io"
+	"math/big"
+	gonet "net"
+	"os"
 )

 func getStatCounter(v *core.Instance, tag string) (stats.Counter, stats.Counter) {
@@ -169,10 +169,11 @@ func (h *Handler) Tag() string {

 // Dispatch implements proxy.Outbound.Dispatch.
 func (h *Handler) Dispatch(ctx context.Context, link *transport.Link) {
-	outbound := session.OutboundFromContext(ctx)
-	if outbound.Target.Network == net.Network_UDP && outbound.OriginalTarget.Address != nil && outbound.OriginalTarget.Address != outbound.Target.Address {
-		link.Reader = &buf.EndpointOverrideReader{Reader: link.Reader, Dest: outbound.Target.Address, OriginalDest: outbound.OriginalTarget.Address}
-		link.Writer = &buf.EndpointOverrideWriter{Writer: link.Writer, Dest: outbound.Target.Address, OriginalDest: outbound.OriginalTarget.Address}
+	outbounds := session.OutboundsFromContext(ctx)
+	ob := outbounds[len(outbounds) - 1]
+	if ob.Target.Network == net.Network_UDP && ob.OriginalTarget.Address != nil && ob.OriginalTarget.Address != ob.Target.Address {
+		link.Reader = &buf.EndpointOverrideReader{Reader: link.Reader, Dest: ob.Target.Address, OriginalDest: ob.OriginalTarget.Address}
+		link.Writer = &buf.EndpointOverrideWriter{Writer: link.Writer, Dest: ob.Target.Address, OriginalDest: ob.OriginalTarget.Address}
 	}
 	if h.mux != nil {
 		test := func(err error) {
@@ -183,7 +184,7 @@ func (h *Handler) Dispatch(ctx context.Context, link *transport.Link) {
 				common.Interrupt(link.Writer)
 			}
 		}
-		if outbound.Target.Network == net.Network_UDP && outbound.Target.Port == 443 {
+		if ob.Target.Network == net.Network_UDP && ob.Target.Port == 443 {
 			switch h.udp443 {
 			case "reject":
 				test(newError("XUDP rejected UDP/443 traffic").AtInfo())
@@ -192,7 +193,7 @@ func (h *Handler) Dispatch(ctx context.Context, link *transport.Link) {
 				goto out
 			}
 		}
-		if h.xudp != nil && outbound.Target.Network == net.Network_UDP {
+		if h.xudp != nil && ob.Target.Network == net.Network_UDP {
 			if !h.xudp.Enabled {
 				goto out
 			}
@@ -243,10 +244,11 @@ func (h *Handler) Dial(ctx context.Context, dest net.Destination) (stat.Connecti
 			handler := h.outboundManager.GetHandler(tag)
 			if handler != nil {
 				newError("proxying to ", tag, " for dest ", dest).AtDebug().WriteToLog(session.ExportIDToError(ctx))
-				ctx = session.ContextWithOutbound(ctx, &session.Outbound{
+				outbounds := session.OutboundsFromContext(ctx)
+				ctx = session.ContextWithOutbounds(ctx, append(outbounds, &session.Outbound{
 					Target: dest,
-				})
-
+					Tag: tag,
+				})) // add another outbound in session ctx
 				opts := pipe.OptionsFromContext(ctx)
 				uplinkReader, uplinkWriter := pipe.New(opts...)
 				downlinkReader, downlinkWriter := pipe.New(opts...)
@@ -266,15 +268,12 @@ func (h *Handler) Dial(ctx context.Context, dest net.Destination) (stat.Connecti
 		}

 		if h.senderSettings.Via != nil {
-			outbound := session.OutboundFromContext(ctx)
-			if outbound == nil {
-				outbound = new(session.Outbound)
-				ctx = session.ContextWithOutbound(ctx, outbound)
-			}
+			outbounds := session.OutboundsFromContext(ctx)
+			ob := outbounds[len(outbounds) - 1]
 			if h.senderSettings.ViaCidr == "" {
-				outbound.Gateway = h.senderSettings.Via.AsAddress()
+				ob.Gateway = h.senderSettings.Via.AsAddress()
 			} else { //Get a random address.
-				outbound.Gateway = ParseRandomIPv6(h.senderSettings.Via.AsAddress(), h.senderSettings.ViaCidr)
+				ob.Gateway = ParseRandomIPv6(h.senderSettings.Via.AsAddress(), h.senderSettings.ViaCidr)
 			}
 		}
 	}
@@ -285,10 +284,9 @@ func (h *Handler) Dial(ctx context.Context, dest net.Destination) (stat.Connecti

 	conn, err := internet.Dial(ctx, dest, h.streamSettings)
 	conn = h.getStatCouterConnection(conn)
-	outbound := session.OutboundFromContext(ctx)
-	if outbound != nil {
-		outbound.Conn = conn
-	}
+	outbounds := session.OutboundsFromContext(ctx)
+	ob := outbounds[len(outbounds) - 1]
+	ob.Conn = conn
 	return conn, err
 }

@@ -319,16 +317,21 @@ func (h *Handler) Close() error {
 	return nil
 }

-// Return random IPv6 in a CIDR block
+
 func ParseRandomIPv6(address net.Address, prefix string) net.Address {
-	addr := address.IP().String()
-	_, network, _ := gonet.ParseCIDR(addr + "/" + prefix)
+	_, network, _ := gonet.ParseCIDR(address.IP().String() + "/" + prefix)

-	ipv6 := network.IP.To16()
-	prefixLen, _ := network.Mask.Size()
-	for i := prefixLen / 8; i < 16; i++ {
-		ipv6[i] = byte(rand.Intn(256))
-	}
+	maskSize, totalBits := network.Mask.Size()
+	subnetSize := big.NewInt(1).Lsh(big.NewInt(1), uint(totalBits-maskSize))

-	return net.ParseAddress(gonet.IP(ipv6).String())
+	// random
+	randomBigInt, _ := rand.Int(rand.Reader, subnetSize)
+
+	startIPBigInt := big.NewInt(0).SetBytes(network.IP.To16())
+	randomIPBigInt := big.NewInt(0).Add(startIPBigInt, randomBigInt)
+
+	randomIPBytes := randomIPBigInt.Bytes()
+	randomIPBytes = append(make([]byte, 16-len(randomIPBytes)), randomIPBytes...)
+
+	return net.ParseAddress(gonet.IP(randomIPBytes).String())
 }
--- a/app/proxyman/outbound/handler_test.go
+++ b/app/proxyman/outbound/handler_test.go
@@ -14,6 +14,7 @@ import (
 	"github.com/xtls/xray-core/app/stats"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/serial"
+	"github.com/xtls/xray-core/common/session"
 	core "github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/outbound"
 	"github.com/xtls/xray-core/proxy/freedom"
@@ -44,6 +45,7 @@ func TestOutboundWithoutStatCounter(t *testing.T) {
 	v, _ := core.New(config)
 	v.AddFeature((outbound.Manager)(new(Manager)))
 	ctx := context.WithValue(context.Background(), xrayKey, v)
+	ctx = session.ContextWithOutbounds(ctx, []*session.Outbound{{}})
 	h, _ := NewHandler(ctx, &core.OutboundHandlerConfig{
 		Tag:           "tag",
 		ProxySettings: serial.ToTypedMessage(&freedom.Config{}),
@@ -73,6 +75,7 @@ func TestOutboundWithStatCounter(t *testing.T) {
 	v, _ := core.New(config)
 	v.AddFeature((outbound.Manager)(new(Manager)))
 	ctx := context.WithValue(context.Background(), xrayKey, v)
+	ctx = session.ContextWithOutbounds(ctx, []*session.Outbound{{}})
 	h, _ := NewHandler(ctx, &core.OutboundHandlerConfig{
 		Tag:           "tag",
 		ProxySettings: serial.ToTypedMessage(&freedom.Config{}),
--- a/app/reverse/config.pb.go
+++ b/app/reverse/config.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: app/reverse/config.proto

 package reverse
--- a/app/reverse/portal.go
+++ b/app/reverse/portal.go
@@ -62,12 +62,13 @@ func (p *Portal) Close() error {
 }

 func (p *Portal) HandleConnection(ctx context.Context, link *transport.Link) error {
-	outboundMeta := session.OutboundFromContext(ctx)
-	if outboundMeta == nil {
+	outbounds := session.OutboundsFromContext(ctx)
+	ob := outbounds[len(outbounds) - 1]
+	if ob == nil {
 		return newError("outbound metadata not found").AtError()
 	}

-	if isDomain(outboundMeta.Target, p.domain) {
+	if isDomain(ob.Target, p.domain) {
 		muxClient, err := mux.NewClientWorker(*link, mux.ClientStrategy{})
 		if err != nil {
 			return newError("failed to create mux client worker").Base(err).AtWarning()
@@ -206,9 +207,10 @@ func NewPortalWorker(client *mux.ClientWorker) (*PortalWorker, error) {
 	downlinkReader, downlinkWriter := pipe.New(opt...)

 	ctx := context.Background()
-	ctx = session.ContextWithOutbound(ctx, &session.Outbound{
+	outbounds := []*session.Outbound{{
 		Target: net.UDPDestination(net.DomainAddress(internalDomain), 0),
-	})
+	}}
+	ctx = session.ContextWithOutbounds(ctx, outbounds)
 	f := client.Dispatch(ctx, &transport.Link{
 		Reader: uplinkReader,
 		Writer: downlinkWriter,
--- a/app/router/balancing.go
+++ b/app/router/balancing.go
@@ -4,6 +4,9 @@ import (
 	"context"
 	sync "sync"

+	"github.com/xtls/xray-core/app/observatory"
+	"github.com/xtls/xray-core/common"
+	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/extension"
 	"github.com/xtls/xray-core/features/outbound"
 )
@@ -17,14 +20,58 @@ type BalancingPrincipleTarget interface {
 }

 type RoundRobinStrategy struct {
+	FallbackTag string
+
+	ctx         context.Context
+	observatory extension.Observatory
 	mu    sync.Mutex
 	index int
 }

+func (s *RoundRobinStrategy) InjectContext(ctx context.Context) {
+	s.ctx = ctx
+}
+
+func (s *RoundRobinStrategy) GetPrincipleTarget(strings []string) []string {
+	return strings
+}
+
 func (s *RoundRobinStrategy) PickOutbound(tags []string) string {
+	if len(s.FallbackTag) > 0 && s.observatory == nil {
+		common.Must(core.RequireFeatures(s.ctx, func(observatory extension.Observatory) error {
+			s.observatory = observatory
+			return nil
+		}))
+	}
+	if s.observatory != nil {
+		observeReport, err := s.observatory.GetObservation(s.ctx)
+		if err == nil {
+			aliveTags := make([]string, 0)
+			if result, ok := observeReport.(*observatory.ObservationResult); ok {
+				status := result.Status
+				statusMap := make(map[string]*observatory.OutboundStatus)
+				for _, outboundStatus := range status {
+					statusMap[outboundStatus.OutboundTag] = outboundStatus
+				}
+				for _, candidate := range tags {
+					if outboundStatus, found := statusMap[candidate]; found {
+						if outboundStatus.Alive {
+							aliveTags = append(aliveTags, candidate)
+						}
+					} else {
+						// unfound candidate is considered alive
+						aliveTags = append(aliveTags, candidate)
+					}
+				}
+				tags = aliveTags
+			}
+		}
+	}
+
 	n := len(tags)
 	if n == 0 {
-		panic("0 tags")
+		// goes to fallbackTag
+		return ""
 	}

 	s.mu.Lock()
--- a/app/router/command/command.pb.go
+++ b/app/router/command/command.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: app/router/command/command.proto

 package command
--- a/app/router/command/command_grpc.pb.go
+++ b/app/router/command/command_grpc.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
 // versions:
 // - protoc-gen-go-grpc v1.3.0
-// - protoc             v4.23.1
+// - protoc             v5.27.0
 // source: app/router/command/command.proto

 package command
--- a/app/router/config.go
+++ b/app/router/config.go
@@ -135,7 +135,7 @@ func (br *BalancingRule) Build(ohm outbound.Manager, dispatcher routing.Dispatch
 	case "roundrobin":
 		return &Balancer{
 			selectors:   br.OutboundSelector,
-			strategy:    &RoundRobinStrategy{},
+			strategy:    &RoundRobinStrategy{FallbackTag: br.FallbackTag},
 			fallbackTag: br.FallbackTag,
 			ohm:         ohm,
 		}, nil
@@ -162,7 +162,7 @@ func (br *BalancingRule) Build(ohm outbound.Manager, dispatcher routing.Dispatch
 			selectors:   br.OutboundSelector,
 			ohm:         ohm,
 			fallbackTag: br.FallbackTag,
-			strategy:    &RandomStrategy{},
+			strategy:    &RandomStrategy{FallbackTag: br.FallbackTag},
 		}, nil
 	default:
 		return nil, newError("unrecognized balancer type")
--- a/app/router/config.pb.go
+++ b/app/router/config.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: app/router/config.proto

 package router
@@ -864,7 +864,7 @@ type StrategyLeastLoadConfig struct {
 	Baselines []int64 `protobuf:"varint,3,rep,packed,name=baselines,proto3" json:"baselines,omitempty"`
 	// expected nodes count to select
 	Expected int32 `protobuf:"varint,4,opt,name=expected,proto3" json:"expected,omitempty"`
-	// max acceptable rtt, filter away high delay nodes. defalut 0
+	// max acceptable rtt, filter away high delay nodes. default 0
 	MaxRTT int64 `protobuf:"varint,5,opt,name=maxRTT,proto3" json:"maxRTT,omitempty"`
 	// acceptable failure rate
 	Tolerance float32 `protobuf:"fixed32,6,opt,name=tolerance,proto3" json:"tolerance,omitempty"`
--- a/app/router/config.proto
+++ b/app/router/config.proto
@@ -147,7 +147,7 @@ message StrategyLeastLoadConfig {
  repeated int64 baselines = 3;
  // expected nodes count to select
  int32 expected = 4;
-  // max acceptable rtt, filter away high delay nodes. defalut 0
+  // max acceptable rtt, filter away high delay nodes. default 0
  int64 maxRTT = 5;
  // acceptable failure rate
  float tolerance = 6;
--- a/app/router/router_test.go
+++ b/app/router/router_test.go
@@ -45,7 +45,9 @@ func TestSimpleRouter(t *testing.T) {
 		HandlerSelector: mockHs,
 	}, nil))

-	ctx := session.ContextWithOutbound(context.Background(), &session.Outbound{Target: net.TCPDestination(net.DomainAddress("example.com"), 80)})
+	ctx := session.ContextWithOutbounds(context.Background(), []*session.Outbound{{
+		Target: net.TCPDestination(net.DomainAddress("example.com"), 80),
+	}})
 	route, err := r.PickRoute(routing_session.AsRoutingContext(ctx))
 	common.Must(err)
 	if tag := route.GetOutboundTag(); tag != "test" {
@@ -86,7 +88,9 @@ func TestSimpleBalancer(t *testing.T) {
 		HandlerSelector: mockHs,
 	}, nil))

-	ctx := session.ContextWithOutbound(context.Background(), &session.Outbound{Target: net.TCPDestination(net.DomainAddress("example.com"), 80)})
+	ctx := session.ContextWithOutbounds(context.Background(), []*session.Outbound{{
+		Target: net.TCPDestination(net.DomainAddress("example.com"), 80),
+	}})
 	route, err := r.PickRoute(routing_session.AsRoutingContext(ctx))
 	common.Must(err)
 	if tag := route.GetOutboundTag(); tag != "test" {
@@ -174,7 +178,9 @@ func TestIPOnDemand(t *testing.T) {
 	r := new(Router)
 	common.Must(r.Init(context.TODO(), config, mockDNS, nil, nil))

-	ctx := session.ContextWithOutbound(context.Background(), &session.Outbound{Target: net.TCPDestination(net.DomainAddress("example.com"), 80)})
+	ctx := session.ContextWithOutbounds(context.Background(), []*session.Outbound{{
+		Target: net.TCPDestination(net.DomainAddress("example.com"), 80),
+	}})
 	route, err := r.PickRoute(routing_session.AsRoutingContext(ctx))
 	common.Must(err)
 	if tag := route.GetOutboundTag(); tag != "test" {
@@ -213,7 +219,9 @@ func TestIPIfNonMatchDomain(t *testing.T) {
 	r := new(Router)
 	common.Must(r.Init(context.TODO(), config, mockDNS, nil, nil))

-	ctx := session.ContextWithOutbound(context.Background(), &session.Outbound{Target: net.TCPDestination(net.DomainAddress("example.com"), 80)})
+	ctx := session.ContextWithOutbounds(context.Background(), []*session.Outbound{{
+		Target: net.TCPDestination(net.DomainAddress("example.com"), 80),
+	}})
 	route, err := r.PickRoute(routing_session.AsRoutingContext(ctx))
 	common.Must(err)
 	if tag := route.GetOutboundTag(); tag != "test" {
@@ -247,7 +255,9 @@ func TestIPIfNonMatchIP(t *testing.T) {
 	r := new(Router)
 	common.Must(r.Init(context.TODO(), config, mockDNS, nil, nil))

-	ctx := session.ContextWithOutbound(context.Background(), &session.Outbound{Target: net.TCPDestination(net.LocalHostIP, 80)})
+	ctx := session.ContextWithOutbounds(context.Background(), []*session.Outbound{{
+		Target: net.TCPDestination(net.LocalHostIP, 80),
+	}})
 	route, err := r.PickRoute(routing_session.AsRoutingContext(ctx))
 	common.Must(err)
 	if tag := route.GetOutboundTag(); tag != "test" {
--- a/app/router/strategy_random.go
+++ b/app/router/strategy_random.go
@@ -1,17 +1,63 @@
 package router

 import (
+	"context"
+
+	"github.com/xtls/xray-core/app/observatory"
+	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/dice"
+	"github.com/xtls/xray-core/core"
+	"github.com/xtls/xray-core/features/extension"
 )

 // RandomStrategy represents a random balancing strategy
-type RandomStrategy struct{}
+type RandomStrategy struct{
+	FallbackTag string
+
+	ctx         context.Context
+	observatory extension.Observatory
+}
+
+func (s *RandomStrategy) InjectContext(ctx context.Context) {
+	s.ctx = ctx
+}

 func (s *RandomStrategy) GetPrincipleTarget(strings []string) []string {
 	return strings
 }

 func (s *RandomStrategy) PickOutbound(candidates []string) string {
+	if len(s.FallbackTag) > 0 && s.observatory == nil {
+		common.Must(core.RequireFeatures(s.ctx, func(observatory extension.Observatory) error {
+			s.observatory = observatory
+			return nil
+		}))
+	}
+	if s.observatory != nil {
+		observeReport, err := s.observatory.GetObservation(s.ctx)
+		if err == nil {
+			aliveTags := make([]string, 0)
+			if result, ok := observeReport.(*observatory.ObservationResult); ok {
+				status := result.Status
+				statusMap := make(map[string]*observatory.OutboundStatus)
+				for _, outboundStatus := range status {
+					statusMap[outboundStatus.OutboundTag] = outboundStatus
+				}
+				for _, candidate := range candidates {
+					if outboundStatus, found := statusMap[candidate]; found {
+						if outboundStatus.Alive {
+							aliveTags = append(aliveTags, candidate)
+						}
+					} else {
+						// unfound candidate is considered alive
+						aliveTags = append(aliveTags, candidate)
+					}
+				}
+				candidates = aliveTags
+			}
+		}
+	}
+
 	count := len(candidates)
 	if count == 0 {
 		// goes to fallbackTag
--- a/app/stats/command/command.pb.go
+++ b/app/stats/command/command.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: app/stats/command/command.proto

 package command
--- a/app/stats/command/command_grpc.pb.go
+++ b/app/stats/command/command_grpc.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
 // versions:
 // - protoc-gen-go-grpc v1.3.0
-// - protoc             v4.23.1
+// - protoc             v5.27.0
 // source: app/stats/command/command.proto

 package command
--- a/app/stats/config.pb.go
+++ b/app/stats/config.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: app/stats/config.proto

 package stats
--- a/common/log/log.pb.go
+++ b/common/log/log.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: common/log/log.proto

 package log
--- a/common/mux/client.go
+++ b/common/mux/client.go
@@ -148,9 +148,10 @@ func (f *DialingWorkerFactory) Create() (*ClientWorker, error) {
 	}

 	go func(p proxy.Outbound, d internet.Dialer, c common.Closable) {
-		ctx := session.ContextWithOutbound(context.Background(), &session.Outbound{
+		outbounds := []*session.Outbound{{
 			Target: net.TCPDestination(muxCoolAddress, muxCoolPort),
-		})
+		}}
+		ctx := session.ContextWithOutbounds(context.Background(), outbounds)
 		ctx, cancel := context.WithCancel(ctx)

 		if err := p.Process(ctx, &transport.Link{Reader: uplinkReader, Writer: downlinkWriter}, d); err != nil {
@@ -242,17 +243,18 @@ func writeFirstPayload(reader buf.Reader, writer *Writer) error {
 }

 func fetchInput(ctx context.Context, s *Session, output buf.Writer) {
-	dest := session.OutboundFromContext(ctx).Target
+	outbounds := session.OutboundsFromContext(ctx)
+	ob := outbounds[len(outbounds) - 1]
 	transferType := protocol.TransferTypeStream
-	if dest.Network == net.Network_UDP {
+	if ob.Target.Network == net.Network_UDP {
 		transferType = protocol.TransferTypePacket
 	}
 	s.transferType = transferType
-	writer := NewWriter(s.ID, dest, output, transferType, xudp.GetGlobalID(ctx))
+	writer := NewWriter(s.ID, ob.Target, output, transferType, xudp.GetGlobalID(ctx))
 	defer s.Close(false)
 	defer writer.Close()

-	newError("dispatching request to ", dest).WriteToLog(session.ExportIDToError(ctx))
+	newError("dispatching request to ", ob.Target).WriteToLog(session.ExportIDToError(ctx))
 	if err := writeFirstPayload(s.input, writer); err != nil {
 		newError("failed to write first payload").Base(err).WriteToLog(session.ExportIDToError(ctx))
 		writer.hasError = true
--- a/common/mux/client_test.go
+++ b/common/mux/client_test.go
@@ -86,9 +86,9 @@ func TestClientWorkerClose(t *testing.T) {
 	}

 	tr1, tw1 := pipe.New(pipe.WithoutSizeLimit())
-	ctx1 := session.ContextWithOutbound(context.Background(), &session.Outbound{
+	ctx1 := session.ContextWithOutbounds(context.Background(), []*session.Outbound{{
 		Target: net.TCPDestination(net.DomainAddress("www.example.com"), 80),
-	})
+	}})
 	common.Must(manager.Dispatch(ctx1, &transport.Link{
 		Reader: tr1,
 		Writer: tw1,
@@ -103,9 +103,9 @@ func TestClientWorkerClose(t *testing.T) {
 	}

 	tr2, tw2 := pipe.New(pipe.WithoutSizeLimit())
-	ctx2 := session.ContextWithOutbound(context.Background(), &session.Outbound{
+	ctx2 := session.ContextWithOutbounds(context.Background(), []*session.Outbound{{
 		Target: net.TCPDestination(net.DomainAddress("www.example.com"), 80),
-	})
+	}})
 	common.Must(manager.Dispatch(ctx2, &transport.Link{
 		Reader: tr2,
 		Writer: tw2,
--- a/common/net/address.pb.go
+++ b/common/net/address.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: common/net/address.proto

 package net
--- a/common/net/destination.pb.go
+++ b/common/net/destination.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: common/net/destination.proto

 package net
--- a/common/net/network.pb.go
+++ b/common/net/network.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: common/net/network.proto

 package net
--- a/common/net/port.pb.go
+++ b/common/net/port.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: common/net/port.proto

 package net
--- a/common/protocol/headers.pb.go
+++ b/common/protocol/headers.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: common/protocol/headers.proto

 package protocol
--- a/common/protocol/server_spec.pb.go
+++ b/common/protocol/server_spec.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: common/protocol/server_spec.proto

 package protocol
--- a/common/protocol/user.pb.go
+++ b/common/protocol/user.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: common/protocol/user.proto

 package protocol
--- a/common/serial/typed_message.pb.go
+++ b/common/serial/typed_message.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: common/serial/typed_message.proto

 package serial
--- a/common/session/context.go
+++ b/common/session/context.go
@@ -51,13 +51,13 @@ func InboundFromContext(ctx context.Context) *Inbound {
 	return nil
 }

-func ContextWithOutbound(ctx context.Context, outbound *Outbound) context.Context {
-	return context.WithValue(ctx, outboundSessionKey, outbound)
+func ContextWithOutbounds(ctx context.Context, outbounds []*Outbound) context.Context {
+	return context.WithValue(ctx, outboundSessionKey, outbounds)
 }

-func OutboundFromContext(ctx context.Context) *Outbound {
-	if outbound, ok := ctx.Value(outboundSessionKey).(*Outbound); ok {
-		return outbound
+func OutboundsFromContext(ctx context.Context) []*Outbound {
+	if outbounds, ok := ctx.Value(outboundSessionKey).([]*Outbound); ok {
+		return outbounds
 	}
 	return nil
 }
--- a/common/session/session.go
+++ b/common/session/session.go
@@ -44,24 +44,17 @@ type Inbound struct {
 	Tag string
 	// Name of the inbound proxy that handles the connection.
 	Name string
-	// User is the user that authencates for the inbound. May be nil if the protocol allows anounymous traffic.
+	// 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.
 	Conn net.Conn
 	// Timer of the inbound buf copier. May be nil.
 	Timer *signal.ActivityTimer
-	// CanSpliceCopy is a property for this connection, set by both inbound and outbound
+	// CanSpliceCopy is a property for this connection
 	// 1 = can, 2 = after processing protocol info should be able to, 3 = cannot
 	CanSpliceCopy int
 }

-func(i *Inbound) SetCanSpliceCopy(canSpliceCopy int) int {
-	if canSpliceCopy > i.CanSpliceCopy {
-		i.CanSpliceCopy = canSpliceCopy
-	}
-	return i.CanSpliceCopy
-}
-
 // Outbound is the metadata of an outbound connection.
 type Outbound struct {
 	// Target address of the outbound connection.
@@ -70,10 +63,15 @@ type Outbound struct {
 	RouteTarget    net.Destination
 	// Gateway address
 	Gateway net.Address
+	// Tag of the outbound proxy that handles the connection.
+	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 
 	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.
--- a/common/singbridge/dialer.go
+++ b/common/singbridge/dialer.go
@@ -43,9 +43,14 @@ func NewOutboundDialer(outbound proxy.Outbound, dialer internet.Dialer) *XrayOut
 }

 func (d *XrayOutboundDialer) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
-	ctx = session.ContextWithOutbound(ctx, &session.Outbound{
-		Target: ToDestination(destination, ToNetwork(network)),
-	})
+	outbounds := session.OutboundsFromContext(ctx)
+	if len(outbounds) == 0 {
+		outbounds = []*session.Outbound{{}}
+		ctx = session.ContextWithOutbounds(ctx, outbounds)
+	}
+	ob := outbounds[len(outbounds) - 1]
+	ob.Target = ToDestination(destination, ToNetwork(network))
+	
 	opts := []pipe.Option{pipe.WithSizeLimit(64 * 1024)}
 	uplinkReader, uplinkWriter := pipe.New(opts...)
 	downlinkReader, downlinkWriter := pipe.New(opts...)
--- a/core/config.go
+++ b/core/config.go
@@ -24,7 +24,7 @@ type ConfigLoader func(input interface{}) (*Config, error)
 // ConfigBuilder is a builder to build core.Config from filenames and formats
 type ConfigBuilder func(files []string, formats []string) (*Config, error)

-// ConfigMerger merge multiple json configs into on config
+// ConfigsMerger merge multiple json configs into on config
 type ConfigsMerger func(files []string, formats []string) (string, error)

 var (
--- a/core/config.pb.go
+++ b/core/config.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: core/config.proto

 package core
--- a/core/core.go
+++ b/core/core.go
@@ -21,7 +21,7 @@ import (
 var (
 	Version_x byte = 1
 	Version_y byte = 8
-	Version_z byte = 10
+	Version_z byte = 15
 )

 var (
--- a/features/routing/session/context.go
+++ b/features/routing/session/context.go
@@ -124,9 +124,11 @@ func (ctx *Context) GetSkipDNSResolve() bool {

 // AsRoutingContext creates a context from context.context with session info.
 func AsRoutingContext(ctx context.Context) routing.Context {
+	outbounds := session.OutboundsFromContext(ctx)
+	ob := outbounds[len(outbounds) - 1]
 	return &Context{
 		Inbound:  session.InboundFromContext(ctx),
-		Outbound: session.OutboundFromContext(ctx),
+		Outbound: ob,
 		Content:  session.ContentFromContext(ctx),
 	}
 }
--- a/go.mod
+++ b/go.mod
@@ -3,59 +3,59 @@ module github.com/xtls/xray-core
 go 1.22

 require (
+	github.com/OmarTariq612/goech v0.0.0-20240405204721-8e2e1dafd3a0
+	github.com/cloudflare/circl v1.3.9
 	github.com/ghodss/yaml v1.0.1-0.20220118164431-d8423dcdf344
 	github.com/golang/mock v1.7.0-rc.1
 	github.com/google/go-cmp v0.6.0
-	github.com/gorilla/websocket v1.5.1
-	github.com/miekg/dns v1.1.58
+	github.com/gorilla/websocket v1.5.3
+	github.com/miekg/dns v1.1.61
 	github.com/pelletier/go-toml v1.9.5
 	github.com/pires/go-proxyproto v0.7.0
-	github.com/quic-go/quic-go v0.42.0
-	github.com/refraction-networking/utls v1.6.3
-	github.com/sagernet/sing v0.3.8
+	github.com/quic-go/quic-go v0.45.0
+	github.com/refraction-networking/utls v1.6.6
+	github.com/sagernet/sing v0.4.1
 	github.com/sagernet/sing-shadowsocks v0.2.6
 	github.com/seiflotfy/cuckoofilter v0.0.0-20220411075957-e3b120b3f5fb
 	github.com/stretchr/testify v1.9.0
 	github.com/v2fly/ss-bloomring v0.0.0-20210312155135-28617310f63e
 	github.com/vishvananda/netlink v1.2.1-beta.2.0.20230316163032-ced5aaba43e3
-	github.com/xtls/reality v0.0.0-20231112171332-de1173cf2b19
+	github.com/xtls/reality v0.0.0-20240429224917-ecc4401070cc
 	go4.org/netipx v0.0.0-20231129151722-fdeea329fbba
-	golang.org/x/crypto v0.21.0
-	golang.org/x/net v0.22.0
-	golang.org/x/sync v0.6.0
-	golang.org/x/sys v0.18.0
+	golang.org/x/crypto v0.24.0
+	golang.org/x/net v0.26.0
+	golang.org/x/sync v0.7.0
+	golang.org/x/sys v0.21.0
 	golang.zx2c4.com/wireguard v0.0.0-20231211153847-12269c276173
-	google.golang.org/grpc v1.62.1
-	google.golang.org/protobuf v1.33.0
-	gvisor.dev/gvisor v0.0.0-20231104011432-48a6d7d5bd0b
+	google.golang.org/grpc v1.64.0
+	google.golang.org/protobuf v1.34.2
+	gvisor.dev/gvisor v0.0.0-20231202080848-1f7806d17489
 	h12.io/socks v1.0.3
-	lukechampine.com/blake3 v1.2.1
+	lukechampine.com/blake3 v1.3.0
 )

 require (
 	github.com/andybalholm/brotli v1.1.0 // indirect
-	github.com/cloudflare/circl v1.3.7 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/dgryski/go-metro v0.0.0-20211217172704-adc40b04c140 // indirect
 	github.com/francoispqt/gojay v1.2.13 // indirect
-	github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 // indirect
-	github.com/golang/protobuf v1.5.4 // indirect
+	github.com/go-task/slim-sprig/v3 v3.0.0 // indirect
 	github.com/google/btree v1.1.2 // indirect
-	github.com/google/pprof v0.0.0-20240227163752-401108e1b7e7 // indirect
-	github.com/klauspost/compress v1.17.7 // indirect
+	github.com/google/pprof v0.0.0-20240528025155-186aa0362fba // indirect
+	github.com/klauspost/compress v1.17.8 // indirect
 	github.com/klauspost/cpuid/v2 v2.2.7 // indirect
-	github.com/onsi/ginkgo/v2 v2.16.0 // indirect
+	github.com/onsi/ginkgo/v2 v2.19.0 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/riobard/go-bloom v0.0.0-20200614022211-cdc8013cb5b3 // indirect
 	github.com/vishvananda/netns v0.0.4 // indirect
 	go.uber.org/mock v0.4.0 // indirect
-	golang.org/x/exp v0.0.0-20240222234643-814bf88cf225 // indirect
-	golang.org/x/mod v0.16.0 // indirect
-	golang.org/x/text v0.14.0 // indirect
+	golang.org/x/exp v0.0.0-20240531132922-fd00a4e0eefc // indirect
+	golang.org/x/mod v0.18.0 // indirect
+	golang.org/x/text v0.16.0 // indirect
 	golang.org/x/time v0.5.0 // indirect
-	golang.org/x/tools v0.19.0 // indirect
+	golang.org/x/tools v0.22.0 // indirect
 	golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20240308144416-29370a3891b7 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240528184218-531527333157 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
--- a/go.sum
+++ b/go.sum
@@ -8,6 +8,8 @@ dmitri.shuralyov.com/service/change v0.0.0-20181023043359-a85b471d5412/go.mod h1
 dmitri.shuralyov.com/state v0.0.0-20180228185332-28bcc343414c/go.mod h1:0PRwlb0D6DFvNNtx+9ybjezNCa8XF0xaYcETyp6rHWU=
 git.apache.org/thrift.git v0.0.0-20180902110319-2566ecd5d999/go.mod h1:fPE2ZNJGynbRyZ4dJvy6G277gSllfV2HJqblrnkyeyg=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/OmarTariq612/goech v0.0.0-20240405204721-8e2e1dafd3a0 h1:Wo41lDOevRJSGpevP+8Pk5bANX7fJacO2w04aqLiC5I=
+github.com/OmarTariq612/goech v0.0.0-20240405204721-8e2e1dafd3a0/go.mod h1:FVGavL/QEBQDcBpr3fAojoK17xX5k9bicBphrOpP7uM=
 github.com/andybalholm/brotli v1.1.0 h1:eLKJA0d02Lf0mVpIDgYnqXcUn0GqVmEFny3VuID1U3M=
 github.com/andybalholm/brotli v1.1.0/go.mod h1:sms7XGricyQI9K10gOSf56VKKWS4oLer58Q+mhRPtnY=
 github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239/go.mod h1:2FmKhYUyUczH0OGQWaF5ceTx0UBShxjsH6f8oGKYe2c=
@@ -15,8 +17,8 @@ github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24
 github.com/bradfitz/go-smtpd v0.0.0-20170404230938-deb6d6237625/go.mod h1:HYsPBTaaSFSlLx/70C2HPIMNZpVV8+vt/A+FMnYP11g=
 github.com/buger/jsonparser v0.0.0-20181115193947-bf1c66bbce23/go.mod h1:bbYlZJ7hK1yFx9hf58LP0zeX7UjIGs20ufpu3evjr+s=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
-github.com/cloudflare/circl v1.3.7 h1:qlCDlTPz2n9fu58M0Nh1J/JzcFpfgkFHHX3O35r5vcU=
-github.com/cloudflare/circl v1.3.7/go.mod h1:sRTcRWXGLrKw6yIGJ+l7amYJFfAXbZG0kBSc8r4zxgA=
+github.com/cloudflare/circl v1.3.9 h1:QFrlgFYf2Qpi8bSpVPK1HBvWpx16v/1TZivyo7pGuBE=
+github.com/cloudflare/circl v1.3.9/go.mod h1:PDRU+oXvdD7KCtgKxW95M5Z8BpSCJXQORiZFnBQS5QU=
 github.com/coreos/go-systemd v0.0.0-20181012123002-c6f51f82210d/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
@@ -36,8 +38,8 @@ github.com/gliderlabs/ssh v0.1.1/go.mod h1:U7qILu1NlMHj9FlMhZLlkCdDnU1DBEAqr0aev
 github.com/go-errors/errors v1.0.1/go.mod h1:f4zRHt4oKfwPJE5k8C9vpYG+aDHdBFUsgrm6/TyX73Q=
 github.com/go-logr/logr v1.4.1 h1:pKouT5E8xu9zeFC39JXRDukb6JFQPXM5p5I91188VAQ=
 github.com/go-logr/logr v1.4.1/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
-github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 h1:tfuBGBXKqDEevZMzYi5KSi8KkcZtzBcTgAUUtapy0OI=
-github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572/go.mod h1:9Pwr4B2jHnOSGXyyzV8ROjYa2ojvAY6HCGYYfMoC3Ls=
+github.com/go-task/slim-sprig/v3 v3.0.0 h1:sUs3vkvUymDpBKi3qH1YSqBQk9+9D/8M2mN1vB6EwHI=
+github.com/go-task/slim-sprig/v3 v3.0.0/go.mod h1:W848ghGpv3Qj3dhTPRyJypKRiqCdHZiAzKg9hl15HA8=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/lint v0.0.0-20180702182130-06c8688daad7/go.mod h1:tluoj9z5200jBnyusfRPU2LqT6J+DAorxEvtC7LHB+E=
@@ -47,8 +49,6 @@ github.com/golang/mock v1.7.0-rc.1 h1:YojYx61/OLFsiv6Rw1Z96LpldJIy31o+UHmwAUMJ6/
 github.com/golang/mock v1.7.0-rc.1/go.mod h1:s42URUywIqd+OcERslBJvOjepvNymP31m3q8d/GkuRs=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
-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 v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
 github.com/google/btree v1.1.2 h1:xf4v41cLI2Z6FxbKm+8Bu+m8ifhj15JuZ9sa0jZCMUU=
 github.com/google/btree v1.1.2/go.mod h1:qOPhT0dTNdNzV6Z/lhRX0YXUafgPLFUh+gZMl761Gm4=
@@ -59,13 +59,13 @@ github.com/google/go-github v17.0.0+incompatible/go.mod h1:zLgOLi98H3fifZn+44m+u
 github.com/google/go-querystring v1.0.0/go.mod h1:odCYkC5MyYFN7vkCjXpyrEuKhc/BUO6wN/zVPAxq5ck=
 github.com/google/martian v2.1.0+incompatible/go.mod h1:9I4somxYTbIHy5NJKHRl3wXiIaQGbYVAs8BPL6v8lEs=
 github.com/google/pprof v0.0.0-20181206194817-3ea8567a2e57/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
-github.com/google/pprof v0.0.0-20240227163752-401108e1b7e7 h1:y3N7Bm7Y9/CtpiVkw/ZWj6lSlDF3F74SfKwfTCer72Q=
-github.com/google/pprof v0.0.0-20240227163752-401108e1b7e7/go.mod h1:czg5+yv1E0ZGTi6S6vVK1mke0fV+FaUhNGcd6VRS9Ik=
+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/googleapis/gax-go v2.0.0+incompatible/go.mod h1:SFVmujtThgffbyetf+mdk2eWhX2bMyUtNHzFKcPA9HY=
 github.com/googleapis/gax-go/v2 v2.0.3/go.mod h1:LLvjysVCY1JZeum8Z6l8qUty8fiNwE08qbEPm1M08qg=
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
-github.com/gorilla/websocket v1.5.1 h1:gmztn0JnHVt9JZquRuzLw3g4wouNVzKL15iLr/zn/QY=
-github.com/gorilla/websocket v1.5.1/go.mod h1:x3kM2JMyaluk02fnUJpQuwD2dCS5NDG2ZHL0uE0tcaY=
+github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=
+github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/gregjones/httpcache v0.0.0-20180305231024-9cad4c3443a7/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
 github.com/grpc-ecosystem/grpc-gateway v1.5.0/go.mod h1:RSKVYQBd5MCa4OVpNdGskqpgL2+G+NZTnrVHpWWfpdw=
 github.com/h12w/go-socks5 v0.0.0-20200522160539-76189e178364 h1:5XxdakFhqd9dnXoAZy1Mb2R/DZ6D1e+0bGC/JhucGYI=
@@ -74,30 +74,28 @@ github.com/jellevandenhooff/dkim v0.0.0-20150330215556-f50fe3d243e1/go.mod h1:E0
 github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
 github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1:6v2b51hI/fHJwM22ozAgKL4VKDeJcHhJFhtBdhmNjmU=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
-github.com/klauspost/compress v1.17.7 h1:ehO88t2UGzQK66LMdE8tibEd1ErmzZjNEqWkjLAKQQg=
-github.com/klauspost/compress v1.17.7/go.mod h1:Di0epgTjJY877eYKx5yC51cX2A2Vl2ibi7bDH9ttBbw=
+github.com/klauspost/compress v1.17.8 h1:YcnTYrq7MikUT7k0Yb5eceMmALQPYBW/Xltxn0NAMnU=
+github.com/klauspost/compress v1.17.8/go.mod h1:Di0epgTjJY877eYKx5yC51cX2A2Vl2ibi7bDH9ttBbw=
 github.com/klauspost/cpuid/v2 v2.2.7 h1:ZWSB3igEs+d0qvnxR/ZBzXVmxkgt8DdzP6m9pfuVLDM=
 github.com/klauspost/cpuid/v2 v2.2.7/go.mod h1:Lcz8mBdAVJIBVzewtcLocK12l3Y+JytZYpaMropDUws=
-github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/pty v1.1.3/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
-github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/lunixbochs/vtclean v1.0.0/go.mod h1:pHhQNgMf3btfWnGBVipUOjRYhoOsdGqdm/+2c2E2WMI=
 github.com/mailru/easyjson v0.0.0-20190312143242-1de009706dbe/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
 github.com/microcosm-cc/bluemonday v1.0.1/go.mod h1:hsXNsILzKxV+sX77C5b8FSuKF00vh2OMYv+xgHpAMF4=
-github.com/miekg/dns v1.1.58 h1:ca2Hdkz+cDg/7eNF6V56jjzuZ4aCAE+DbVkILdQWG/4=
-github.com/miekg/dns v1.1.58/go.mod h1:Ypv+3b/KadlvW9vJfXOTf300O4UqaHFzFCuHz+rPkBY=
+github.com/miekg/dns v1.1.61 h1:nLxbwF3XxhwVSm8g9Dghm9MHPaUZuqhPiGL+675ZmEs=
+github.com/miekg/dns v1.1.61/go.mod h1:mnAarhS3nWaW+NVP2wTkYVIZyHNJ098SJZUki3eykwQ=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/neelance/astrewrite v0.0.0-20160511093645-99348263ae86/go.mod h1:kHJEU3ofeGjhHklVoIGuVj85JJwZ6kWPaJwCIxgnFmo=
 github.com/neelance/sourcemap v0.0.0-20151028013722-8c68805598ab/go.mod h1:Qr6/a/Q4r9LP1IltGz7tA7iOK1WonHEYhu1HRBA7ZiM=
-github.com/onsi/ginkgo/v2 v2.16.0 h1:7q1w9frJDzninhXxjZd+Y/x54XNjG/UlRLIYPZafsPM=
-github.com/onsi/ginkgo/v2 v2.16.0/go.mod h1:llBI3WDLL9Z6taip6f33H76YcWtJv+7R3HigUjbIBOs=
-github.com/onsi/gomega v1.30.0 h1:hvMK7xYz4D3HapigLTeGdId/NcfQx1VHMJc60ew99+8=
-github.com/onsi/gomega v1.30.0/go.mod h1:9sxs+SwGrKI0+PWe4Fxa9tFQQBG5xSsSbMXOI8PPpoQ=
+github.com/onsi/ginkgo/v2 v2.19.0 h1:9Cnnf7UHo57Hy3k6/m5k3dRfGTMXGvxhHFvkDTCTpvA=
+github.com/onsi/ginkgo/v2 v2.19.0/go.mod h1:rlwLi9PilAFJ8jCg9UE1QP6VBpd6/xj3SRC0d6TU0To=
+github.com/onsi/gomega v1.33.1 h1:dsYjIxxSR755MDmKVsaFQTE22ChNBcuuTWgkUDSubOk=
+github.com/onsi/gomega v1.33.1/go.mod h1:U4R44UsT+9eLIaYRB2a5qajjtQYn0hauxvRm16AVYg0=
 github.com/openzipkin/zipkin-go v0.1.1/go.mod h1:NtoC/o8u3JlF1lSlyPNswIbeQH9bJTmOf0Erfk+hxe8=
 github.com/pelletier/go-toml v1.9.5 h1:4yBQzkHv+7BHq2PQUZF3Mx0IYxG7LsP222s7Agd3ve8=
 github.com/pelletier/go-toml v1.9.5/go.mod h1:u1nR/EPcESfeI/szUZKdtJ0xRNbUoANCkoOuaOx1Y+c=
@@ -112,15 +110,15 @@ github.com/prometheus/client_golang v0.8.0/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXP
 github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
 github.com/prometheus/common v0.0.0-20180801064454-c7de2306084e/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
 github.com/prometheus/procfs v0.0.0-20180725123919-05ee40e3a273/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
-github.com/quic-go/quic-go v0.42.0 h1:uSfdap0eveIl8KXnipv9K7nlwZ5IqLlYOpJ58u5utpM=
-github.com/quic-go/quic-go v0.42.0/go.mod h1:132kz4kL3F9vxhW3CtQJLDVwcFe5wdWeJXXijhsO57M=
-github.com/refraction-networking/utls v1.6.3 h1:MFOfRN35sSx6K5AZNIoESsBuBxS2LCgRilRIdHb6fDc=
-github.com/refraction-networking/utls v1.6.3/go.mod h1:yil9+7qSl+gBwJqztoQseO6Pr3h62pQoY1lXiNR/FPs=
+github.com/quic-go/quic-go v0.45.0 h1:OHmkQGM37luZITyTSu6ff03HP/2IrwDX1ZFiNEhSFUE=
+github.com/quic-go/quic-go v0.45.0/go.mod h1:1dLehS7TIR64+vxGR70GDcatWTOtMX2PUtnKsjbTurI=
+github.com/refraction-networking/utls v1.6.6 h1:igFsYBUJPYM8Rno9xUuDoM5GQrVEqY4llzEXOkL43Ig=
+github.com/refraction-networking/utls v1.6.6/go.mod h1:BC3O4vQzye5hqpmDTWUqi4P5DDhzJfkV1tdqtawQIH0=
 github.com/riobard/go-bloom v0.0.0-20200614022211-cdc8013cb5b3 h1:f/FNXud6gA3MNr8meMVVGxhp+QBTqY91tM8HjEuMjGg=
 github.com/riobard/go-bloom v0.0.0-20200614022211-cdc8013cb5b3/go.mod h1:HgjTstvQsPGkxUsCd2KWxErBblirPizecHcpD3ffK+s=
 github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
-github.com/sagernet/sing v0.3.8 h1:gm4JKalPhydMYX2zFOTnnd4TXtM/16WFRqSjMepYQQk=
-github.com/sagernet/sing v0.3.8/go.mod h1:+60H3Cm91RnL9dpVGWDPHt0zTQImO9Vfqt9a4rSambI=
+github.com/sagernet/sing v0.4.1 h1:zVlpE+7k7AFoC2pv6ReqLf0PIHjihL/jsBl5k05PQFk=
+github.com/sagernet/sing v0.4.1/go.mod h1:ieZHA/+Y9YZfXs2I3WtuwgyCZ6GPsIR7HdKb1SdEnls=
 github.com/sagernet/sing-shadowsocks v0.2.6 h1:xr7ylAS/q1cQYS8oxKKajhuQcchd5VJJ4K4UZrrpp0s=
 github.com/sagernet/sing-shadowsocks v0.2.6/go.mod h1:j2YZBIpWIuElPFL/5sJAj470bcn/3QQ5lxZUNKLDNAM=
 github.com/seiflotfy/cuckoofilter v0.0.0-20220411075957-e3b120b3f5fb h1:XfLJSPIOUX+osiMraVgIrMR27uMXnRJWGm1+GL8/63U=
@@ -165,8 +163,8 @@ github.com/vishvananda/netlink v1.2.1-beta.2.0.20230316163032-ced5aaba43e3/go.mo
 github.com/vishvananda/netns v0.0.0-20200728191858-db3c7e526aae/go.mod h1:DD4vA1DwXk04H54A1oHXtwZmA0grkVMdPxx/VGLCah0=
 github.com/vishvananda/netns v0.0.4 h1:Oeaw1EM2JMxD51g9uhtC0D7erkIjgmj8+JZc26m1YX8=
 github.com/vishvananda/netns v0.0.4/go.mod h1:SpkAiCQRtJ6TvvxPnOSyH3BMl6unz3xZlaprSwhNNJM=
-github.com/xtls/reality v0.0.0-20231112171332-de1173cf2b19 h1:capMfFYRgH9BCLd6A3Er/cH3A9Nz3CU2KwxwOQZIePI=
-github.com/xtls/reality v0.0.0-20231112171332-de1173cf2b19/go.mod h1:dm4y/1QwzjGaK17ofi0Vs6NpKAHegZky8qk6J2JJZAE=
+github.com/xtls/reality v0.0.0-20240429224917-ecc4401070cc h1:0Nj8T1n7F7+v4vRVroaJIvY6R0vNABLfPH+lzPHRJvI=
+github.com/xtls/reality v0.0.0-20240429224917-ecc4401070cc/go.mod h1:dm4y/1QwzjGaK17ofi0Vs6NpKAHegZky8qk6J2JJZAE=
 github.com/yuin/goldmark v1.4.1/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 go.opencensus.io v0.18.0/go.mod h1:vKdFvxhtzZ9onBp9VKHK8z/sRpBMnKAsufL7wlDrCOA=
 go.uber.org/mock v0.4.0 h1:VcM4ZOtdbR4f6VXfiOpwpVJDL6lCReaZ6mw31wqh7KU=
@@ -179,17 +177,17 @@ golang.org/x/crypto v0.0.0-20181030102418-4d3f4d9ffa16/go.mod h1:6SG95UA2DQfeDnf
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20190313024323-a1f597ede03a/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
-golang.org/x/crypto v0.21.0 h1:X31++rzVUdKhX5sWmSOFZxx8UW/ldWx55cbf08iNAMA=
-golang.org/x/crypto v0.21.0/go.mod h1:0BP7YvVV9gBbVKyeTG0Gyn+gZm94bibOW5BjDEYAOMs=
+golang.org/x/crypto v0.24.0 h1:mnl8DM0o513X8fdIkmyFE/5hTYxbwYOjDS/+rK6qpRI=
+golang.org/x/crypto v0.24.0/go.mod h1:Z1PMYSOR5nyMcyAVAIQSKCDwalqy85Aqn1x3Ws4L5DM=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
-golang.org/x/exp v0.0.0-20240222234643-814bf88cf225 h1:LfspQV/FYTatPTr/3HzIcmiUFH7PGP+OQ6mgDYo3yuQ=
-golang.org/x/exp v0.0.0-20240222234643-814bf88cf225/go.mod h1:CxmFvTBINI24O/j8iY7H1xHzx2i4OsyguNBmN/uPtqc=
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 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
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-golang.org/x/mod v0.16.0 h1:QX4fJ0Rr5cPQCF7O9lh9Se4pmwfwskqZfq5moyldzic=
-golang.org/x/mod v0.16.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
+golang.org/x/mod v0.18.0 h1:5+9lSbEzPSdWkH32vYPBwEpX8KwDbM52Ud9xBUvNlb0=
+golang.org/x/mod v0.18.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -201,8 +199,8 @@ golang.org/x/net v0.0.0-20190313220215-9f648a60d977/go.mod h1:t9HGtf8HONx5eT2rtn
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20211015210444-4f30a5c0130f/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
-golang.org/x/net v0.22.0 h1:9sGLhx7iRIHEiX0oAJ3MRZMUCElJgy7Br1nO+AMN3Tc=
-golang.org/x/net v0.22.0/go.mod h1:JKghWKKOSdJwpW2GEx0Ja7fmaKnMsbu+MWVZTokSYmg=
+golang.org/x/net v0.26.0 h1:soB7SVo0PWrY4vPW/+ay0jKDNScG2X9wFeYlXIvJsOQ=
+golang.org/x/net v0.26.0/go.mod h1:5YKkiSynbBIh3p6iOc/vibscux0x38BZDkn8sCUPxHE=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20181017192945-9dcd33a902f4/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20181203162652-d668ce993890/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
@@ -214,8 +212,8 @@ golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.6.0 h1:5BMeUDZ7vkXGfEr1x9B4bRcTH4lpkTkpdh0T/J+qjbQ=
-golang.org/x/sync v0.6.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
+golang.org/x/sync v0.7.0 h1:YsImfSBoP9QPYL0xyKJPq0gcaJdG3rInoqxTWbfQu9M=
+golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181029174526-d69651ed3497/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@@ -228,15 +226,15 @@ golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20211019181941-9d821ace8654/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220804214406-8e32c043e418/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.18.0 h1:DBdB3niSjOA/O0blCZBqDefyWNYveAYMNF1Wum0DYQ4=
-golang.org/x/sys v0.18.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.21.0 h1:rF+pYz3DAGSQAxAu1CbC7catZg4ebC4UIeIhKxBZvws=
+golang.org/x/sys v0.21.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
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 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
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-golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
+golang.org/x/text v0.16.0 h1:a94ExnEXNtEwYLGJSIUxnWoxoRz/ZcCsV63ROupILh4=
+golang.org/x/text v0.16.0/go.mod h1:GhwF1Be+LQoKShO3cGOHzqOgRrGaYc9AvblQOmPVHnI=
 golang.org/x/time v0.0.0-20180412165947-fbb02b2291d2/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
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 golang.org/x/time v0.5.0 h1:o7cqy6amK/52YcAKIPlM3a+Fpj35zvRj2TP+e1xFSfk=
@@ -248,8 +246,8 @@ golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGm
 golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.1.8/go.mod h1:nABZi5QlRsZVlzPpHl034qft6wpY4eDcsTt5AaioBiU=
-golang.org/x/tools v0.19.0 h1:tfGCXNR1OsFG+sVdLAitlpjAvD/I6dHDKnYrpEZUHkw=
-golang.org/x/tools v0.19.0/go.mod h1:qoJWxmGSIBmAeriMx19ogtrEPrGtDbPK634QFIcLAhc=
+golang.org/x/tools v0.22.0 h1:gqSGLZqv+AI9lIQzniJ0nZDRG5GBPsSi+DRNHWNz6yA=
+golang.org/x/tools v0.22.0/go.mod h1:aCwcsjqvq7Yqt6TNyX7QMU2enbQ/Gt0bo6krSeEri+c=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -269,19 +267,18 @@ google.golang.org/genproto v0.0.0-20180831171423-11092d34479b/go.mod h1:JiN7NxoA
 google.golang.org/genproto v0.0.0-20181029155118-b69ba1387ce2/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/genproto v0.0.0-20181202183823-bd91e49a0898/go.mod h1:7Ep/1NZk928CDR8SjdVbjWNpdIf6nzjE3BTgJDr2Atg=
 google.golang.org/genproto v0.0.0-20190306203927-b5d61aea6440/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20240308144416-29370a3891b7 h1:em/y72n4XlYRtayY/cVj6pnVzHa//BDA1BdoO+z9mdE=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20240308144416-29370a3891b7/go.mod h1:UCOku4NytXMJuLQE5VuqA5lX3PcHCBo8pxNyvkf4xBs=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20240528184218-531527333157 h1:Zy9XzmMEflZ/MAaA7vNcoebnRAld7FsPW1EeBB7V0m8=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20240528184218-531527333157/go.mod h1:EfXuqaE1J41VCDicxHzUDm+8rk+7ZdXzHV0IhO/I6s0=
 google.golang.org/grpc v1.14.0/go.mod h1:yo6s7OP7yaDglbqo1J04qKzAhqBH6lvTonzMVmEdcZw=
 google.golang.org/grpc v1.16.0/go.mod h1:0JHn/cJsOMiMfNA9+DeHDlAU7KAAB5GDlYFpa9MZMio=
 google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
-google.golang.org/grpc v1.62.1 h1:B4n+nfKzOICUXMgyrNd19h/I9oH0L1pizfk1d4zSgTk=
-google.golang.org/grpc v1.62.1/go.mod h1:IWTG0VlJLCh1SkC58F7np9ka9mx/WNkjl4PGJaiq+QE=
-google.golang.org/protobuf v1.33.0 h1:uNO2rsAINq/JlFpSdYEKIZ0uKD/R9cpdv0T+yoGwGmI=
-google.golang.org/protobuf v1.33.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
+google.golang.org/grpc v1.64.0 h1:KH3VH9y/MgNQg1dE7b3XfVK0GsPSIzJwdF617gUSbvY=
+google.golang.org/grpc v1.64.0/go.mod h1:oxjF8E3FBnjp+/gVFYdWacaLDx9na1aqy9oovLpxQYg=
+google.golang.org/protobuf v1.34.2 h1:6xV6lTsCfpGD21XK49h7MhtcApnLqkfYgPcdHftf6hg=
+google.golang.org/protobuf v1.34.2/go.mod h1:qYOHts0dSfpeUzUFpOMr/WGzszTmLH+DiWniOlNbLDw=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
-gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
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@@ -292,14 +289,14 @@ gopkg.in/yaml.v3 v3.0.0-20200605160147-a5ece683394c/go.mod h1:K4uyk7z7BCEPqu6E+C
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 grpc.go4.org v0.0.0-20170609214715-11d0a25b4919/go.mod h1:77eQGdRu53HpSqPFJFmuJdjuHRquDANNeA4x7B8WQ9o=
-gvisor.dev/gvisor v0.0.0-20231104011432-48a6d7d5bd0b h1:yqkg3pTifuKukuWanp8spDsL4irJkHF5WI0J47hU87o=
-gvisor.dev/gvisor v0.0.0-20231104011432-48a6d7d5bd0b/go.mod h1:10sU+Uh5KKNv1+2x2A0Gvzt8FjD3ASIhorV3YsauXhk=
+gvisor.dev/gvisor v0.0.0-20231202080848-1f7806d17489 h1:ze1vwAdliUAr68RQ5NtufWaXaOg8WUO2OACzEV+TNdE=
+gvisor.dev/gvisor v0.0.0-20231202080848-1f7806d17489/go.mod h1:10sU+Uh5KKNv1+2x2A0Gvzt8FjD3ASIhorV3YsauXhk=
 h12.io/socks v1.0.3 h1:Ka3qaQewws4j4/eDQnOdpr4wXsC//dXtWvftlIcCQUo=
 h12.io/socks v1.0.3/go.mod h1:AIhxy1jOId/XCz9BO+EIgNL2rQiPTBNnOfnVnQ+3Eck=
 honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-lukechampine.com/blake3 v1.2.1 h1:YuqqRuaqsGV71BV/nm9xlI0MKUv4QC54jQnBChWbGnI=
-lukechampine.com/blake3 v1.2.1/go.mod h1:0OFRp7fBtAylGVCO40o87sbupkyIGgbpv1+M1k1LM6k=
+lukechampine.com/blake3 v1.3.0 h1:sJ3XhFINmHSrYCgl958hscfIa3bw8x4DqMP3u1YvoYE=
+lukechampine.com/blake3 v1.3.0/go.mod h1:0OFRp7fBtAylGVCO40o87sbupkyIGgbpv1+M1k1LM6k=
 sourcegraph.com/sourcegraph/go-diff v0.5.0/go.mod h1:kuch7UrkMzY0X+p9CRK03kfuPQ2zzQcaEFbx8wA8rck=
 sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4/go.mod h1:ketZ/q3QxT9HOBeFhu6RdvsftgpsbFHBF5Cas6cDKZ0=
--- a/infra/conf/api.go
+++ b/infra/conf/api.go
@@ -14,6 +14,7 @@ import (

 type APIConfig struct {
 	Tag      string   `json:"tag"`
+	Listen   string   `json:"listen"`
 	Services []string `json:"services"`
 }

@@ -42,6 +43,7 @@ func (c *APIConfig) Build() (*commander.Config, error) {

 	return &commander.Config{
 		Tag:     c.Tag,
+		Listen:  c.Listen,
 		Service: services,
 	}, nil
 }
--- a/infra/conf/router_strategy.go
+++ b/infra/conf/router_strategy.go
@@ -38,7 +38,7 @@ type strategyLeastLoadConfig struct {
 	Baselines []duration.Duration `json:"baselines,omitempty"`
 	// expected nodes count to select
 	Expected int32 `json:"expected,omitempty"`
-	// max acceptable rtt, filter away high delay nodes. defalut 0
+	// max acceptable rtt, filter away high delay nodes. default 0
 	MaxRTT duration.Duration `json:"maxRTT,omitempty"`
 	// acceptable failure rate
 	Tolerance float64 `json:"tolerance,omitempty"`
--- a/infra/conf/router_test.go
+++ b/infra/conf/router_test.go
@@ -97,7 +97,8 @@ func TestRouterConfig(t *testing.T) {
 				"balancers": [
 					{
 						"tag": "b1",
-						"selector": ["test"]
+						"selector": ["test"],
+						"fallbackTag": "fall"
 					},
 					{
 						"tag": "b2",
@@ -137,6 +138,7 @@ func TestRouterConfig(t *testing.T) {
 						Tag:              "b1",
 						OutboundSelector: []string{"test"},
 						Strategy:         "random",
+						FallbackTag:      "fall",
 					},
 					{
 						Tag:              "b2",
--- a/infra/conf/transport.go
+++ b/infra/conf/transport.go
@@ -16,6 +16,7 @@ type TransportConfig struct {
 	GRPCConfig        *GRPCConfig         `json:"grpcSettings"`
 	GUNConfig         *GRPCConfig         `json:"gunSettings"`
 	HTTPUPGRADEConfig *HttpUpgradeConfig  `json:"httpupgradeSettings"`
+	SplitHTTPConfig   *SplitHTTPConfig    `json:"splithttpSettings"`
 }

 // Build implements Buildable.
@@ -113,5 +114,16 @@ func (c *TransportConfig) Build() (*global.Config, error) {
 		})
 	}

+	if c.SplitHTTPConfig != nil {
+		shs, err := c.SplitHTTPConfig.Build()
+		if err != nil {
+			return nil, newError("failed to build SplitHTTP config").Base(err)
+		}
+		config.TransportSettings = append(config.TransportSettings, &internet.TransportConfig{
+			ProtocolName: "splithttp",
+			Settings:     serial.ToTypedMessage(shs),
+		})
+	}
+
 	return config, nil
 }
--- a/infra/conf/transport_internet.go
+++ b/infra/conf/transport_internet.go
@@ -23,6 +23,7 @@ import (
 	"github.com/xtls/xray-core/transport/internet/kcp"
 	"github.com/xtls/xray-core/transport/internet/quic"
 	"github.com/xtls/xray-core/transport/internet/reality"
+	"github.com/xtls/xray-core/transport/internet/splithttp"
 	"github.com/xtls/xray-core/transport/internet/tcp"
 	"github.com/xtls/xray-core/transport/internet/tls"
 	"github.com/xtls/xray-core/transport/internet/websocket"
@@ -208,8 +209,10 @@ func (c *HttpUpgradeConfig) Build() (proto.Message, error) {
 	// Host priority: Host field > headers field > address.
 	if c.Host == "" && c.Headers["host"] != "" {
 		c.Host = c.Headers["host"]
+		delete(c.Headers,"host")
 	} else if c.Host == "" && c.Headers["Host"] != "" {
 		c.Host = c.Headers["Host"]
+		delete(c.Headers,"Host")
 	}
 	config := &httpupgrade.Config{
 		Path:                path,
@@ -221,6 +224,34 @@ func (c *HttpUpgradeConfig) Build() (proto.Message, error) {
 	return config, nil
 }

+type SplitHTTPConfig struct {
+	Host                 string            `json:"host"`
+	Path                 string            `json:"path"`
+	Headers              map[string]string `json:"headers"`
+	MaxConcurrentUploads int32             `json:"maxConcurrentUploads"`
+	MaxUploadSize        int32             `json:"maxUploadSize"`
+}
+
+// Build implements Buildable.
+func (c *SplitHTTPConfig) Build() (proto.Message, error) {
+	// If http host is not set in the Host field, but in headers field, we add it to Host Field here.
+	// If we don't do that, http host will be overwritten as address.
+	// Host priority: Host field > headers field > address.
+	if c.Host == "" && c.Headers["host"] != "" {
+		c.Host = c.Headers["host"]
+	} else if c.Host == "" && c.Headers["Host"] != "" {
+		c.Host = c.Headers["Host"]
+	}
+	config := &splithttp.Config{
+		Path:                 c.Path,
+		Host:                 c.Host,
+		Header:               c.Headers,
+		MaxConcurrentUploads: c.MaxConcurrentUploads,
+		MaxUploadSize:        c.MaxUploadSize,
+	}
+	return config, nil
+}
+
 type HTTPConfig struct {
 	Host               *StringList            `json:"host"`
 	Path               string                 `json:"path"`
@@ -392,7 +423,6 @@ type TLSConfig struct {
 	MinVersion                           string           `json:"minVersion"`
 	MaxVersion                           string           `json:"maxVersion"`
 	CipherSuites                         string           `json:"cipherSuites"`
-	PreferServerCipherSuites             bool             `json:"preferServerCipherSuites"`
 	Fingerprint                          string           `json:"fingerprint"`
 	RejectUnknownSNI                     bool             `json:"rejectUnknownSni"`
 	PinnedPeerCertificateChainSha256     *[]string        `json:"pinnedPeerCertificateChainSha256"`
@@ -424,7 +454,6 @@ func (c *TLSConfig) Build() (proto.Message, error) {
 	config.MinVersion = c.MinVersion
 	config.MaxVersion = c.MaxVersion
 	config.CipherSuites = c.CipherSuites
-	config.PreferServerCipherSuites = c.PreferServerCipherSuites
 	config.Fingerprint = strings.ToLower(c.Fingerprint)
 	if config.Fingerprint != "" && tls.GetFingerprint(config.Fingerprint) == nil {
 		return nil, newError(`unknown fingerprint: `, config.Fingerprint)
@@ -648,6 +677,8 @@ func (p TransportProtocol) Build() (string, error) {
 		return "grpc", nil
 	case "httpupgrade":
 		return "httpupgrade", nil
+	case "splithttp":
+		return "splithttp", nil
 	default:
 		return "", newError("Config: unknown transport protocol: ", p)
 	}
@@ -762,6 +793,7 @@ type StreamConfig struct {
 	GRPCConfig          *GRPCConfig         `json:"grpcSettings"`
 	GUNConfig           *GRPCConfig         `json:"gunSettings"`
 	HTTPUPGRADESettings *HttpUpgradeConfig  `json:"httpupgradeSettings"`
+	SplitHTTPSettings   *SplitHTTPConfig    `json:"splithttpSettings"`
 }

 // Build implements Buildable.
@@ -892,6 +924,16 @@ func (c *StreamConfig) Build() (*internet.StreamConfig, error) {
 			Settings:     serial.ToTypedMessage(hs),
 		})
 	}
+	if c.SplitHTTPSettings != nil {
+		hs, err := c.SplitHTTPSettings.Build()
+		if err != nil {
+			return nil, newError("Failed to build SplitHTTP config.").Base(err)
+		}
+		config.TransportSettings = append(config.TransportSettings, &internet.TransportConfig{
+			ProtocolName: "splithttp",
+			Settings:     serial.ToTypedMessage(hs),
+		})
+	}
 	if c.SocketSettings != nil {
 		ss, err := c.SocketSettings.Build()
 		if err != nil {
--- a/infra/conf/wireguard.go
+++ b/infra/conf/wireguard.go
@@ -22,14 +22,14 @@ func (c *WireGuardPeerConfig) Build() (proto.Message, error) {
 	config := new(wireguard.PeerConfig)

 	if c.PublicKey != "" {
-		config.PublicKey, err = parseWireGuardKey(c.PublicKey)
+		config.PublicKey, err = ParseWireGuardKey(c.PublicKey)
 		if err != nil {
 			return nil, err
 		}
 	}

 	if c.PreSharedKey != "" {
-		config.PreSharedKey, err = parseWireGuardKey(c.PreSharedKey)
+		config.PreSharedKey, err = ParseWireGuardKey(c.PreSharedKey)
 		if err != nil {
 			return nil, err
 		}
@@ -64,7 +64,7 @@ func (c *WireGuardConfig) Build() (proto.Message, error) {
 	config := new(wireguard.DeviceConfig)

 	var err error
-	config.SecretKey, err = parseWireGuardKey(c.SecretKey)
+	config.SecretKey, err = ParseWireGuardKey(c.SecretKey)
 	if err != nil {
 		return nil, err
 	}
@@ -132,7 +132,7 @@ func (c *WireGuardConfig) Build() (proto.Message, error) {
 	return config, nil
 }

-func parseWireGuardKey(str string) (string, error) {
+func ParseWireGuardKey(str string) (string, error) {
 	var err error

 	if len(str)%2 == 0 {
--- a/infra/conf/xray.go
+++ b/infra/conf/xray.go
@@ -557,6 +557,9 @@ func applyTransportConfig(s *StreamConfig, t *TransportConfig) {
 	if s.HTTPUPGRADESettings == nil {
 		s.HTTPUPGRADESettings = t.HTTPUPGRADEConfig
 	}
+	if s.SplitHTTPSettings == nil {
+		s.SplitHTTPSettings = t.SplitHTTPConfig
+	}
 }

 // Build implements Buildable.
--- a/infra/vprotogen/main.go
+++ b/infra/vprotogen/main.go
@@ -174,11 +174,14 @@ func main() {
 		suffix = ".exe"
 	}

-	targetedVersion, err := getProjectProtocVersion("https://raw.githubusercontent.com/xtls/xray-core/HEAD/core/config.pb.go")
-	if err != nil {
-		fmt.Println(err)
-		os.Exit(1)
-	}
+	/*
+		targetedVersion, err := getProjectProtocVersion("https://raw.githubusercontent.com/XTLS/Xray-core/HEAD/core/config.pb.go")
+		if err != nil {
+			fmt.Println(err)
+			os.Exit(1)
+		}
+	*/
+	targetedVersion := ""

 	protoc, err := whichProtoc(suffix, targetedVersion)
 	if err != nil {
--- a/main/commands/all/api/api.go
+++ b/main/commands/all/api/api.go
@@ -23,5 +23,6 @@ var CmdAPI = &base.Command{
 		cmdRemoveOutbounds,
 		cmdAddRules,
 		cmdRemoveRules,
+		cmdSourceIpBlock,
 	},
 }
--- a/main/commands/all/api/source_ip_block.go
+++ b/main/commands/all/api/source_ip_block.go
@@ -0,0 +1,132 @@
+package api
+
+import (
+	"encoding/json"
+	"fmt"
+	"strings"
+
+	routerService "github.com/xtls/xray-core/app/router/command"
+	cserial "github.com/xtls/xray-core/common/serial"
+	"github.com/xtls/xray-core/infra/conf/serial"
+	"github.com/xtls/xray-core/main/commands/base"
+)
+
+var cmdSourceIpBlock = &base.Command{
+	CustomFlags: true,
+	UsageLine:   "{{.Exec}} api sib [--server=127.0.0.1:8080] -outbound=blocked -inbound=socks 1.2.3.4",
+	Short:       "Drop connections by source ip",
+	Long: `
+Drop connections by source ip.
+Arguments:
+	-s, -server 
+		The API server address. Default 127.0.0.1:8080
+	-t, -timeout
+		Timeout seconds to call API. Default 3
+	-outbound
+		route traffic to specific outbound.
+	-inbound
+		target traffig from specific inbound.
+	-ruletag
+		set ruleTag. Default sourceIpBlock
+	-reset
+		remove ruletag and apply new source IPs. Default false
+
+	Example:
+    {{.Exec}} {{.LongName}} --server=127.0.0.1:8080 c1.json c2.json
+`,
+	Run: executeSourceIpBlock,
+}
+
+func executeSourceIpBlock(cmd *base.Command, args []string) {
+	var (
+		inbound  string
+		outbound string
+		ruletag  string
+		reset    bool
+	)
+	setSharedFlags(cmd)
+	cmd.Flag.StringVar(&inbound, "inbound", "", "")
+	cmd.Flag.StringVar(&outbound, "outbound", "", "")
+	cmd.Flag.StringVar(&ruletag, "ruletag", "sourceIpBlock", "")
+	cmd.Flag.BoolVar(&reset, "reset", false, "")
+
+	cmd.Flag.Parse(args)
+
+	unnamedArgs := cmd.Flag.Args()
+	if len(unnamedArgs) == 0 {
+		fmt.Println("reading from stdin:")
+		unnamedArgs = []string{"stdin:"}
+	}
+	conn, ctx, close := dialAPIServer()
+	defer close()
+
+	client := routerService.NewRoutingServiceClient(conn)
+
+	jsonIps, err := json.Marshal(unnamedArgs)
+	if err != nil {
+		fmt.Println("Error marshaling JSON:", err)
+		return
+	}
+
+	jsonInbound, err := json.Marshal([]string{inbound})
+	if inbound == "" {
+		jsonInbound, err = json.Marshal([]string{})
+	}
+	if err != nil {
+		fmt.Println("Error marshaling JSON:", err)
+		return
+	}
+	stringConfig := fmt.Sprintf(`
+	{
+		"routing": {
+			"rules": [
+			  {
+				"ruleTag" : "%s",
+				"inboundTag": %s,		
+				"outboundTag": "%s",
+				"type": "field",
+				"source": %s
+			  }
+			]
+		  }
+	  }
+	  
+	`, ruletag, string(jsonInbound), outbound, string(jsonIps))
+
+	conf, err := serial.DecodeJSONConfig(strings.NewReader(stringConfig))
+	if err != nil {
+		base.Fatalf("failed to decode : %s", err)
+	}
+	rc := *conf.RouterConfig
+
+	config, err := rc.Build()
+	if err != nil {
+		base.Fatalf("failed to build conf: %s", err)
+	}
+	tmsg := cserial.ToTypedMessage(config)
+	if tmsg == nil {
+		base.Fatalf("failed to format config to TypedMessage.")
+	}
+
+	if reset {
+		rr := &routerService.RemoveRuleRequest{
+			RuleTag: ruletag,
+		}
+		resp, err := client.RemoveRule(ctx, rr)
+		if err != nil {
+			base.Fatalf("failed to perform RemoveRule: %s", err)
+		}
+		showJSONResponse(resp)
+
+	}
+	ra := &routerService.AddRuleRequest{
+		Config:       tmsg,
+		ShouldAppend: true,
+	}
+	resp, err := client.AddRule(ctx, ra)
+	if err != nil {
+		base.Fatalf("failed to perform AddRule: %s", err)
+	}
+	showJSONResponse(resp)
+
+}
--- a/main/commands/all/tls/ech.go
+++ b/main/commands/all/tls/ech.go
@@ -0,0 +1,69 @@
+package tls
+
+import (
+	"encoding/json"
+	"encoding/pem"
+	"os"
+	"strings"
+
+	"github.com/OmarTariq612/goech"
+	"github.com/cloudflare/circl/hpke"
+	"github.com/xtls/xray-core/common"
+	"github.com/xtls/xray-core/main/commands/base"
+)
+
+var cmdECH = &base.Command{
+	UsageLine: `{{.Exec}} tls ech [--serverName (string)] [--json]`,
+	Short:     `Generate TLS-ECH certificates`,
+	Long: `
+Generate TLS-ECH certificates.
+
+Set serverName to your custom string: {{.Exec}} tls ech --serverName (string)
+Generate into json format: {{.Exec}} tls ech --json
+`, // Enable PQ signature schemes: {{.Exec}} tls ech --pq-signature-schemes-enabled
+}
+
+func init() {
+	cmdECH.Run = executeECH
+}
+
+var input_pqSignatureSchemesEnabled = cmdECH.Flag.Bool("pqSignatureSchemesEnabled", false, "")
+var input_serverName = cmdECH.Flag.String("serverName", "cloudflare-ech.com", "")
+var input_json = cmdECH.Flag.Bool("json", false, "True == turn on json output")
+
+func executeECH(cmd *base.Command, args []string) {
+	var kem hpke.KEM
+
+	if *input_pqSignatureSchemesEnabled {
+		kem = hpke.KEM_X25519_KYBER768_DRAFT00
+	} else {
+		kem = hpke.KEM_X25519_HKDF_SHA256
+	}
+
+	echKeySet, err := goech.GenerateECHKeySet(0, *input_serverName, kem)
+	common.Must(err)
+
+	configBuffer, _ := echKeySet.ECHConfig.MarshalBinary()
+	keyBuffer, _ := echKeySet.MarshalBinary()
+
+	configPEM := string(pem.EncodeToMemory(&pem.Block{Type: "ECH CONFIGS", Bytes: configBuffer}))
+	keyPEM := string(pem.EncodeToMemory(&pem.Block{Type: "ECH KEYS", Bytes: keyBuffer}))
+	if *input_json {
+		jECHConfigs := map[string]interface{}{
+			"configs": strings.Split(strings.TrimSpace(string(configPEM)), "\n"),
+		}
+		jECHKey := map[string]interface{}{
+			"key": strings.Split(strings.TrimSpace(string(keyPEM)), "\n"),
+		}
+
+		for _, i := range []map[string]interface{}{jECHConfigs, jECHKey} {
+			content, err := json.MarshalIndent(i, "", "  ")
+			common.Must(err)
+			os.Stdout.Write(content)
+			os.Stdout.WriteString("\n")
+		}
+	} else {
+		os.Stdout.WriteString(configPEM)
+		os.Stdout.WriteString(keyPEM)
+	}
+}
--- a/main/commands/all/tls/tls.go
+++ b/main/commands/all/tls/tls.go
@@ -14,5 +14,6 @@ var CmdTLS = &base.Command{
 		cmdCert,
 		cmdPing,
 		cmdCertChainHash,
+		cmdECH,
 	},
 }
--- a/main/distro/all/all.go
+++ b/main/distro/all/all.go
@@ -57,6 +57,7 @@ import (
 	_ "github.com/xtls/xray-core/transport/internet/kcp"
 	_ "github.com/xtls/xray-core/transport/internet/quic"
 	_ "github.com/xtls/xray-core/transport/internet/reality"
+	_ "github.com/xtls/xray-core/transport/internet/splithttp"
 	_ "github.com/xtls/xray-core/transport/internet/tcp"
 	_ "github.com/xtls/xray-core/transport/internet/tls"
 	_ "github.com/xtls/xray-core/transport/internet/udp"
--- a/proxy/blackhole/blackhole.go
+++ b/proxy/blackhole/blackhole.go
@@ -31,10 +31,9 @@ func New(ctx context.Context, config *Config) (*Handler, error) {

 // Process implements OutboundHandler.Dispatch().
 func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer internet.Dialer) error {
-	outbound := session.OutboundFromContext(ctx)
-	if outbound != nil {
-		outbound.Name = "blackhole"
-	}
+	outbounds := session.OutboundsFromContext(ctx)
+	ob := outbounds[len(outbounds) - 1]
+	ob.Name = "blackhole"
 	
 	nBytes := h.response.WriteTo(link.Writer)
 	if nBytes > 0 {
--- a/proxy/blackhole/blackhole_test.go
+++ b/proxy/blackhole/blackhole_test.go
@@ -7,13 +7,15 @@ import (
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/serial"
+	"github.com/xtls/xray-core/common/session"
 	"github.com/xtls/xray-core/proxy/blackhole"
 	"github.com/xtls/xray-core/transport"
 	"github.com/xtls/xray-core/transport/pipe"
 )

 func TestBlackholeHTTPResponse(t *testing.T) {
-	handler, err := blackhole.New(context.Background(), &blackhole.Config{
+	ctx := session.ContextWithOutbounds(context.Background(), []*session.Outbound{{}})
+	handler, err := blackhole.New(ctx, &blackhole.Config{
 		Response: serial.ToTypedMessage(&blackhole.HTTPResponse{}),
 	})
 	common.Must(err)
@@ -32,7 +34,7 @@ func TestBlackholeHTTPResponse(t *testing.T) {
 		Reader: reader,
 		Writer: writer,
 	}
-	common.Must(handler.Process(context.Background(), &link, nil))
+	common.Must(handler.Process(ctx, &link, nil))
 	common.Must(rerr)
 	if mb.IsEmpty() {
 		t.Error("expect http response, but nothing")
--- a/proxy/blackhole/config.pb.go
+++ b/proxy/blackhole/config.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: proxy/blackhole/config.proto

 package blackhole
--- a/proxy/dns/config.pb.go
+++ b/proxy/dns/config.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: proxy/dns/config.proto

 package dns
--- a/proxy/dns/dns.go
+++ b/proxy/dns/dns.go
@@ -96,15 +96,16 @@ func parseIPQuery(b []byte) (r bool, domain string, id uint16, qType dnsmessage.

 // Process implements proxy.Outbound.
 func (h *Handler) Process(ctx context.Context, link *transport.Link, d internet.Dialer) error {
-	outbound := session.OutboundFromContext(ctx)
-	if outbound == nil || !outbound.Target.IsValid() {
+	outbounds := session.OutboundsFromContext(ctx)
+	ob := outbounds[len(outbounds) - 1]
+	if !ob.Target.IsValid() {
 		return newError("invalid outbound")
 	}
-	outbound.Name = "dns"
+	ob.Name = "dns"

-	srcNetwork := outbound.Target.Network
+	srcNetwork := ob.Target.Network

-	dest := outbound.Target
+	dest := ob.Target
 	if h.server.Network != net.Network_Unknown {
 		dest.Network = h.server.Network
 	}
--- a/proxy/dokodemo/config.pb.go
+++ b/proxy/dokodemo/config.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: proxy/dokodemo/config.proto

 package dokodemo
--- a/proxy/dokodemo/dokodemo.go
+++ b/proxy/dokodemo/dokodemo.go
@@ -86,10 +86,15 @@ func (d *DokodemoDoor) Process(ctx context.Context, network net.Network, conn st

 	destinationOverridden := false
 	if d.config.FollowRedirect {
-		if outbound := session.OutboundFromContext(ctx); outbound != nil && outbound.Target.IsValid() {
-			dest = outbound.Target
-			destinationOverridden = true
-		} else if handshake, ok := conn.(hasHandshakeAddressContext); ok {
+		outbounds := session.OutboundsFromContext(ctx)
+		if len(outbounds) > 0 {
+			ob := outbounds[len(outbounds) - 1]
+			if ob.Target.IsValid() {
+				dest = ob.Target
+				destinationOverridden = true
+			}
+		}
+		if handshake, ok := conn.(hasHandshakeAddressContext); ok && !destinationOverridden {
 			addr := handshake.HandshakeAddressContext(ctx)
 			if addr != nil {
 				dest.Address = addr
@@ -103,7 +108,7 @@ func (d *DokodemoDoor) Process(ctx context.Context, network net.Network, conn st

 	inbound := session.InboundFromContext(ctx)
 	inbound.Name = "dokodemo-door"
-	inbound.SetCanSpliceCopy(1)
+	inbound.CanSpliceCopy = 1
 	inbound.User = &protocol.MemoryUser{
 		Level: d.config.UserLevel,
 	}
--- a/proxy/freedom/config.pb.go
+++ b/proxy/freedom/config.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: proxy/freedom/config.proto

 package freedom
--- a/proxy/freedom/freedom.go
+++ b/proxy/freedom/freedom.go
@@ -106,16 +106,16 @@ func isValidAddress(addr *net.IPOrDomain) bool {

 // Process implements proxy.Outbound.
 func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer internet.Dialer) error {
-	outbound := session.OutboundFromContext(ctx)
-	if outbound == nil || !outbound.Target.IsValid() {
+	outbounds := session.OutboundsFromContext(ctx)
+	ob := outbounds[len(outbounds) - 1]
+	if !ob.Target.IsValid() {
 		return newError("target not specified.")
 	}
-	outbound.Name = "freedom"
+	ob.Name = "freedom"
+	ob.CanSpliceCopy = 1
 	inbound := session.InboundFromContext(ctx)
-	if inbound != nil {
-		inbound.SetCanSpliceCopy(1)
-	}
-	destination := outbound.Target
+
+	destination := ob.Target
 	UDPOverride := net.UDPDestination(nil, 0)
 	if h.config.DestinationOverride != nil {
 		server := h.config.DestinationOverride.Server
@@ -219,10 +219,12 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 		defer timer.SetTimeout(plcy.Timeouts.UplinkOnly)
 		if destination.Network == net.Network_TCP {
 			var writeConn net.Conn
+			var inTimer *signal.ActivityTimer
 			if inbound := session.InboundFromContext(ctx); inbound != nil && inbound.Conn != nil && useSplice {
 				writeConn = inbound.Conn
+				inTimer = inbound.Timer
 			}
-			return proxy.CopyRawConnIfExist(ctx, conn, writeConn, link.Writer, timer)
+			return proxy.CopyRawConnIfExist(ctx, conn, writeConn, link.Writer, timer, inTimer)
 		}
 		reader := NewPacketReader(conn, UDPOverride)
 		if err := buf.Copy(reader, output, buf.UpdateActivity(timer)); err != nil {
@@ -373,6 +375,9 @@ func (f *FragmentWriter) Write(b []byte) (int, error) {
 			return f.writer.Write(b)
 		}
 		recordLen := 5 + ((int(b[3]) << 8) | int(b[4]))
+		if len(b) < recordLen { // maybe already fragmented somehow
+			return f.writer.Write(b)
+		}
 		data := b[5:recordLen]
 		buf := make([]byte, 1024)
 		for from := 0; ; {
--- a/proxy/http/client.go
+++ b/proxy/http/client.go
@@ -69,16 +69,14 @@ func NewClient(ctx context.Context, config *ClientConfig) (*Client, error) {

 // Process implements proxy.Outbound.Process. We first create a socket tunnel via HTTP CONNECT method, then redirect all inbound traffic to that tunnel.
 func (c *Client) Process(ctx context.Context, link *transport.Link, dialer internet.Dialer) error {
-	outbound := session.OutboundFromContext(ctx)
-	if outbound == nil || !outbound.Target.IsValid() {
+	outbounds := session.OutboundsFromContext(ctx)
+	ob := outbounds[len(outbounds) - 1]
+	if !ob.Target.IsValid() {
 		return newError("target not specified.")
 	}
-	outbound.Name = "http"
-	inbound := session.InboundFromContext(ctx)
-	if inbound != nil {
-		inbound.SetCanSpliceCopy(2)
-	}
-	target := outbound.Target
+	ob.Name = "http"
+	ob.CanSpliceCopy = 2
+	target := ob.Target
 	targetAddr := target.NetAddr()

 	if target.Network == net.Network_UDP {
@@ -175,9 +173,10 @@ func fillRequestHeader(ctx context.Context, header []*Header) ([]*Header, error)
 	}

 	inbound := session.InboundFromContext(ctx)
-	outbound := session.OutboundFromContext(ctx)
+	outbounds := session.OutboundsFromContext(ctx)
+	ob := outbounds[len(outbounds) - 1]

-	if inbound == nil || outbound == nil {
+	if inbound == nil || ob == nil {
 		return nil, newError("missing inbound or outbound metadata from context")
 	}

@@ -186,7 +185,7 @@ func fillRequestHeader(ctx context.Context, header []*Header) ([]*Header, error)
 		Target net.Destination
 	}{
 		Source: inbound.Source,
-		Target: outbound.Target,
+		Target: ob.Target,
 	}

 	filled := make([]*Header, len(header))
--- a/proxy/http/config.pb.go
+++ b/proxy/http/config.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: proxy/http/config.proto

 package http
--- a/proxy/http/server.go
+++ b/proxy/http/server.go
@@ -85,7 +85,7 @@ type readerOnly struct {
 func (s *Server) Process(ctx context.Context, network net.Network, conn stat.Connection, dispatcher routing.Dispatcher) error {
 	inbound := session.InboundFromContext(ctx)
 	inbound.Name = "http"
-	inbound.SetCanSpliceCopy(2)
+	inbound.CanSpliceCopy = 2
 	inbound.User = &protocol.MemoryUser{
 		Level: s.config.UserLevel,
 	}
--- a/proxy/loopback/config.pb.go
+++ b/proxy/loopback/config.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: proxy/loopback/config.proto

 package loopback
--- a/proxy/loopback/loopback.go
+++ b/proxy/loopback/loopback.go
@@ -22,12 +22,13 @@ type Loopback struct {
 }

 func (l *Loopback) Process(ctx context.Context, link *transport.Link, _ internet.Dialer) error {
-	outbound := session.OutboundFromContext(ctx)
-	if outbound == nil || !outbound.Target.IsValid() {
+	outbounds := session.OutboundsFromContext(ctx)
+	ob := outbounds[len(outbounds) - 1]
+	if !ob.Target.IsValid() {
 		return newError("target not specified.")
 	}
-	outbound.Name = "loopback"
-	destination := outbound.Target
+	ob.Name = "loopback"
+	destination := ob.Target

 	newError("opening connection to ", destination).WriteToLog(session.ExportIDToError(ctx))

--- a/proxy/proxy.go
+++ b/proxy/proxy.go
@@ -470,49 +470,81 @@ func UnwrapRawConn(conn net.Conn) (net.Conn, stats.Counter, stats.Counter) {
 // CopyRawConnIfExist use the most efficient copy method.
 // - If caller don't want to turn on splice, do not pass in both reader conn and writer conn
 // - writer are from *transport.Link
-func CopyRawConnIfExist(ctx context.Context, readerConn net.Conn, writerConn net.Conn, writer buf.Writer, timer signal.ActivityUpdater) error {
+func CopyRawConnIfExist(ctx context.Context, readerConn net.Conn, writerConn net.Conn, writer buf.Writer, timer *signal.ActivityTimer, inTimer *signal.ActivityTimer) error {
 	readerConn, readCounter, _ := UnwrapRawConn(readerConn)
 	writerConn, _, writeCounter := UnwrapRawConn(writerConn)
 	reader := buf.NewReader(readerConn)
-	if inbound := session.InboundFromContext(ctx); inbound != nil {
-		if tc, ok := writerConn.(*net.TCPConn); ok && readerConn != nil && writerConn != nil && (runtime.GOOS == "linux" || runtime.GOOS == "android") {
-			for inbound.CanSpliceCopy != 3 {
-				if inbound.CanSpliceCopy == 1 {
-					newError("CopyRawConn splice").WriteToLog(session.ExportIDToError(ctx))
-					statWriter, _ := writer.(*dispatcher.SizeStatWriter)
-					//runtime.Gosched() // necessary
-					time.Sleep(time.Millisecond) // without this, there will be a rare ssl error for freedom splice
-					w, err := tc.ReadFrom(readerConn)
-					if readCounter != nil {
-						readCounter.Add(w) // outbound stats
-					}
-					if writeCounter != nil {
-						writeCounter.Add(w) // inbound stats
-					}
-					if statWriter != nil {
-						statWriter.Counter.Add(w) // user stats
-					}
-					if err != nil && errors.Cause(err) != io.EOF {
-						return err
-					}
-					return nil
-				}
-				buffer, err := reader.ReadMultiBuffer()
-				if !buffer.IsEmpty() {
-					if readCounter != nil {
-						readCounter.Add(int64(buffer.Len()))
-					}
-					timer.Update()
-					if werr := writer.WriteMultiBuffer(buffer); werr != nil {
-						return werr
-					}
-				}
-				if err != nil {
-					return err
-				}
-			}
+	if runtime.GOOS != "linux" && runtime.GOOS != "android" {
+		return readV(ctx, reader, writer, timer, readCounter)
+	}
+	tc, ok := writerConn.(*net.TCPConn)
+	if !ok || readerConn == nil || writerConn == nil {
+		return readV(ctx, reader, writer, timer, readCounter)
+	}
+	inbound := session.InboundFromContext(ctx)
+	if inbound == nil || inbound.CanSpliceCopy == 3 {
+		return readV(ctx, reader, writer, timer, readCounter)
+	}
+	outbounds := session.OutboundsFromContext(ctx)
+	if len(outbounds) == 0 {
+		return readV(ctx, reader, writer, timer, readCounter)
+	}
+	for _, ob := range outbounds {
+		if ob.CanSpliceCopy == 3 {
+			return readV(ctx, reader, writer, timer, readCounter)
 		}
 	}
+
+	for {
+		inbound := session.InboundFromContext(ctx)
+		outbounds := session.OutboundsFromContext(ctx)
+		var splice = inbound.CanSpliceCopy == 1
+		for _, ob := range outbounds {
+			if ob.CanSpliceCopy != 1 {
+				splice = false
+			}
+		}
+		if splice {
+			newError("CopyRawConn splice").WriteToLog(session.ExportIDToError(ctx))
+			statWriter, _ := writer.(*dispatcher.SizeStatWriter)
+			//runtime.Gosched() // necessary
+			time.Sleep(time.Millisecond) // without this, there will be a rare ssl error for freedom splice
+			timer.SetTimeout(8 * time.Hour) // prevent leak, just in case
+			if inTimer != nil {
+				inTimer.SetTimeout(8 * time.Hour)
+			}
+			w, err := tc.ReadFrom(readerConn)
+			if readCounter != nil {
+				readCounter.Add(w) // outbound stats
+			}
+			if writeCounter != nil {
+				writeCounter.Add(w) // inbound stats
+			}
+			if statWriter != nil {
+				statWriter.Counter.Add(w) // user stats
+			}
+			if err != nil && errors.Cause(err) != io.EOF {
+				return err
+			}
+			return nil
+		}
+		buffer, err := reader.ReadMultiBuffer()
+		if !buffer.IsEmpty() {
+			if readCounter != nil {
+				readCounter.Add(int64(buffer.Len()))
+			}
+			timer.Update()
+			if werr := writer.WriteMultiBuffer(buffer); werr != nil {
+				return werr
+			}
+		}
+		if err != nil {
+			return err
+		}
+	}
+}
+
+func readV(ctx context.Context, reader buf.Reader, writer buf.Writer, timer signal.ActivityUpdater, readCounter stats.Counter) error {
 	newError("CopyRawConn readv").WriteToLog(session.ExportIDToError(ctx))
 	if err := buf.Copy(reader, writer, buf.UpdateActivity(timer), buf.AddToStatCounter(readCounter)); err != nil {
 		return newError("failed to process response").Base(err)
--- a/proxy/shadowsocks/client.go
+++ b/proxy/shadowsocks/client.go
@@ -49,16 +49,14 @@ func NewClient(ctx context.Context, config *ClientConfig) (*Client, error) {

 // Process implements OutboundHandler.Process().
 func (c *Client) Process(ctx context.Context, link *transport.Link, dialer internet.Dialer) error {
-	outbound := session.OutboundFromContext(ctx)
-	if outbound == nil || !outbound.Target.IsValid() {
+	outbounds := session.OutboundsFromContext(ctx)
+	ob := outbounds[len(outbounds) - 1]
+	if !ob.Target.IsValid() {
 		return newError("target not specified")
 	}
-	outbound.Name = "shadowsocks"
-	inbound := session.InboundFromContext(ctx)
-	if inbound != nil {
-		inbound.SetCanSpliceCopy(3)
-	}
-	destination := outbound.Target
+	ob.Name = "shadowsocks"
+	ob.CanSpliceCopy = 3
+	destination := ob.Target
 	network := destination.Network

 	var server *protocol.ServerSpec
--- a/proxy/shadowsocks/config.pb.go
+++ b/proxy/shadowsocks/config.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: proxy/shadowsocks/config.proto

 package shadowsocks
--- a/proxy/shadowsocks/server.go
+++ b/proxy/shadowsocks/server.go
@@ -73,7 +73,7 @@ func (s *Server) Network() []net.Network {
 func (s *Server) Process(ctx context.Context, network net.Network, conn stat.Connection, dispatcher routing.Dispatcher) error {
 	inbound := session.InboundFromContext(ctx)
 	inbound.Name = "shadowsocks"
-	inbound.SetCanSpliceCopy(3)
+	inbound.CanSpliceCopy = 3
 	
 	switch network {
 	case net.Network_TCP:
--- a/proxy/shadowsocks_2022/config.pb.go
+++ b/proxy/shadowsocks_2022/config.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: proxy/shadowsocks_2022/config.proto

 package shadowsocks_2022
--- a/proxy/shadowsocks_2022/inbound.go
+++ b/proxy/shadowsocks_2022/inbound.go
@@ -66,7 +66,7 @@ func (i *Inbound) Network() []net.Network {
 func (i *Inbound) Process(ctx context.Context, network net.Network, connection stat.Connection, dispatcher routing.Dispatcher) error {
 	inbound := session.InboundFromContext(ctx)
 	inbound.Name = "shadowsocks-2022"
-	inbound.SetCanSpliceCopy(3)
+	inbound.CanSpliceCopy = 3

 	var metadata M.Metadata
 	if inbound.Source.IsValid() {
--- a/proxy/shadowsocks_2022/inbound_multi.go
+++ b/proxy/shadowsocks_2022/inbound_multi.go
@@ -155,7 +155,7 @@ func (i *MultiUserInbound) Network() []net.Network {
 func (i *MultiUserInbound) Process(ctx context.Context, network net.Network, connection stat.Connection, dispatcher routing.Dispatcher) error {
 	inbound := session.InboundFromContext(ctx)
 	inbound.Name = "shadowsocks-2022-multi"
-	inbound.SetCanSpliceCopy(3)
+	inbound.CanSpliceCopy = 3

 	var metadata M.Metadata
 	if inbound.Source.IsValid() {
--- a/proxy/shadowsocks_2022/inbound_relay.go
+++ b/proxy/shadowsocks_2022/inbound_relay.go
@@ -87,7 +87,7 @@ func (i *RelayInbound) Network() []net.Network {
 func (i *RelayInbound) Process(ctx context.Context, network net.Network, connection stat.Connection, dispatcher routing.Dispatcher) error {
 	inbound := session.InboundFromContext(ctx)
 	inbound.Name = "shadowsocks-2022-relay"
-	inbound.SetCanSpliceCopy(3)
+	inbound.CanSpliceCopy = 3

 	var metadata M.Metadata
 	if inbound.Source.IsValid() {
--- a/proxy/shadowsocks_2022/outbound.go
+++ b/proxy/shadowsocks_2022/outbound.go
@@ -65,15 +65,16 @@ func (o *Outbound) Process(ctx context.Context, link *transport.Link, dialer int
 	inbound := session.InboundFromContext(ctx)
 	if inbound != nil {
 		inboundConn = inbound.Conn
-		inbound.SetCanSpliceCopy(3)
 	}

-	outbound := session.OutboundFromContext(ctx)
-	if outbound == nil || !outbound.Target.IsValid() {
+	outbounds := session.OutboundsFromContext(ctx)
+	ob := outbounds[len(outbounds) - 1]
+	if !ob.Target.IsValid() {
 		return newError("target not specified")
 	}
-	outbound.Name = "shadowsocks-2022"
-	destination := outbound.Target
+	ob.Name = "shadowsocks-2022"
+	ob.CanSpliceCopy = 3
+	destination := ob.Target
 	network := destination.Network

 	newError("tunneling request to ", destination, " via ", o.server.NetAddr()).WriteToLog(session.ExportIDToError(ctx))
--- a/proxy/socks/client.go
+++ b/proxy/socks/client.go
@@ -57,17 +57,15 @@ func NewClient(ctx context.Context, config *ClientConfig) (*Client, error) {

 // Process implements proxy.Outbound.Process.
 func (c *Client) Process(ctx context.Context, link *transport.Link, dialer internet.Dialer) error {
-	outbound := session.OutboundFromContext(ctx)
-	if outbound == nil || !outbound.Target.IsValid() {
+	outbounds := session.OutboundsFromContext(ctx)
+	ob := outbounds[len(outbounds) - 1]
+	if !ob.Target.IsValid() {
 		return newError("target not specified.")
 	}
-	outbound.Name = "socks"
-	inbound := session.InboundFromContext(ctx)
-	if inbound != nil {
-		inbound.SetCanSpliceCopy(2)
-	}
+	ob.Name = "socks"
+	ob.CanSpliceCopy = 2
 	// Destination of the inner request.
-	destination := outbound.Target
+	destination := ob.Target

 	// Outbound server.
 	var server *protocol.ServerSpec
--- a/proxy/socks/config.pb.go
+++ b/proxy/socks/config.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.33.0
-// 	protoc        v4.23.1
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.27.0
 // source: proxy/socks/config.proto

 package socks
--- a/Show More
+++ b/Show More