Update config.yaml

Co-Authored-By: R3pl4c3r <30682790+R3pl4c3r@users.noreply.github.com>

.github/ISSUE_TEMPLATE/bug-en.md

@@ -0,0 +1,92 @@
+---
+name: Bug Report
+about: Create a bug report of Xray.
+title: '[Bug] <bug you are reporting>'
+labels: ''
+assignees: ''
+
+---
+
+<!-- Thanks for your reporting.
+1. Please make sure you are submitting a bug of Xray-Core instead of acquiring usage or bug in third-party programs. If you are not sure, please contact us in our official Telegram group.
+2. Bug: **An error, flaw or fault in a program ** that causes it to produce an incorrect or unexpected result. (Reference: Wikipedia)
+3. Please check existing Issues and Discussions first and read the documentation in detail. Duplicated issues will be closed.
+4. Please don't report issue like "I can't use a feature". It's probably your own mistake.
+5. You should fully complete the following contents or this issue may not be handled.
+6. Please *make sure* the content you are submitting does not contain your private information.
+-->
+
+
+**Describe the bug**
+<!-- A clear and concise description of what the bug is. -->
+
+**To Reproduce**
+<!-- Steps to reproduce the bug: -->
+1.
+2.
+3.
+4.
+
+**Expected behavior**
+<!-- A clear and concise description of what you expected to happen. -->
+
+**Client Log**
+
+<details>
+
+```
+Please paste your client log here:
+
+
+```
+
+</details>
+
+**Server Log**
+
+<details>
+
+```
+Please paste your server log here:
+
+
+```
+
+</details>
+
+**Client config**
+
+<details>
+
+```json
+Please paste your client config file here:
+
+
+```
+
+</details>
+
+**Server Config**
+
+<details>
+
+```json
+Please paste your server config file here:
+
+
+```
+
+</details>
+
+**Client Information**
+ - OS: [e.g. Windows 10]
+ - Xray version [e.g. 1.3.1]
+ - Xray installing approach：[e.g. Xray-install]
+
+**Server Information**
+- OS: [e.g. Windows 10]
+- Xray version [e.g. 1.3.1]
+- Xray installing approach：[e.g. Xray-install]
+
+**Additional Information**
+<!-- Add any other information about the problem here. -->

.github/ISSUE_TEMPLATE/bug-zh-CN.md

@@ -0,0 +1,91 @@
+---
+name: Bug 反馈
+about: 这是 Xray 的一个 bug。
+title: '[Bug] 你发现的bug'
+labels: ''
+assignees: ''
+
+---
+
+<!-- 感谢您的反馈！
+1. 请先确认您提交的是 Xray-Core 的 Bug，而非使用咨询，抑或是第三方程序的 Bug。如果您不确定，请在 Telegram 群中反馈。
+2. Bug：软件运行中因为 **程序本身有错误** 而造成的功能不正常。(Reference: Wikipedia)
+3. 请先查询已有的 Issues 与 Discussions ，并且详细阅读文档的相关内容。如果您提出的是已知的问题，此 issue 将有可能被关闭。
+4. 请不要轻易提出类似“不能使用某功能”的问题。这往往是你自己的问题。
+5. 您需要完整地完成下列内容，否则此 issue 可能不会被处理。
+6. 请 *务必* 确保不包含任何个人隐私信息。
+-->
+
+**问题描述**
+<!-- 请清晰简洁地描述此问题。-->
+
+**复现方式**
+<!-- 复现此步骤的过程: -->
+1.
+2.
+3.
+4.
+
+**预期行为**
+<!-- 请清晰简洁地描述您期望的的行为。-->
+
+**客户端日志**
+
+<details>
+
+```
+请删除此行，并在此处粘贴客户端日志
+
+
+```
+
+</details>
+
+**服务端日志**
+
+<details>
+
+```
+请删除此行，并在此处粘贴服务端日志
+
+
+```
+
+</details>
+
+**客户端配置**
+
+<details>
+
+```json
+请删除此行，并在此处粘贴客户端配置
+
+
+```
+
+</details>
+
+**服务端配置**
+
+<details>
+
+```json
+请删除此行，并在此处粘贴服务端日志
+
+
+```
+
+</details>
+
+**客户端环境**
+ - 系统与版本: [如 Windows 10]
+ - Xray 版本 [如 1.3.1]
+ - Xray 安装方式：[如 Xray-install]
+
+**服务端环境**
+ - 系统与版本: [如 Windows 10]
+ - Xray 版本 [如 1.3.1]
+ - Xray 安装方式：[如 Xray-install]
+
+**附加信息**
+<!-- 如果您有额外的信息，请在此处说明。-->

.github/ISSUE_TEMPLATE/config.yaml

@@ -0,0 +1,9 @@
+contact_links:
+  - name: 加入 Telegram 群组 / Join Telegram Group
+    url: https://t.me/projectXray
+  - name: 官方文档 / Official Document
+    url: https://xtls.github.io/
+  - name: 安装脚本 / Installing Script
+    url: https://github.com/XTLS/Xray-install
+  - name: 示例配置 / Example Config
+    url: https://github.com/XTLS/Xray-examples

.github/ISSUE_TEMPLATE/feature-en.md

@@ -0,0 +1,32 @@
+---
+name: Feature Request
+about: Suggest an idea for Xray
+title: '[Feature] your idea'
+labels: ''
+assignees: ''
+
+---
+
+<!-- Thanks for your support!
+1. Please confirm that you are submitting a feature request.
+2. We do not recommend any inexperienced users to request a new feature. 
+3. Please check existing Issues and Discussions first and read the documentation in detail. Duplicated issues will be closed
+4. To be clear: none of developers is obliged to meet your needs. In particular, features that do not make any sense.
+5. You should fully complete the following contents.
+-->
+
+**What's your idea？**
+<!-- A clear and concise description of your idea. -->
+
+**Is it related to an issue?**
+<!-- Please specify here if yes. -->
+
+**What's your solution?**
+<!-- Describe the solution you'd like. -->
+1. 
+2. 
+3. 
+4. 
+
+**Is there any additional information?**
+<!-- Add any other information here. -->

.github/ISSUE_TEMPLATE/feature-zh-CN.md

@@ -0,0 +1,32 @@
+---
+name: 功能请求
+about: 希望 Xray 添加一个新功能。
+title: '[Feature] 你的想法'
+labels: ''
+assignees: ''
+
+---
+
+<!-- 感谢您的反馈！
+1. 请先确认您提交的是功能请求。
+2. 我们不建议缺少经验的用户提出功能请求。
+3. 请先查询已有的 Issues 与 Discussions ，并且详细阅读文档的相关内容。重复的 issue 将有可能被关闭。
+4. 需要向您明确一点：任何开发者均没有义务满足您的需求。特别是不合理或没有意义的功能。
+5. 您需要完整地完成下列内容，否则此 issue 可能不会被处理。
+-->
+
+**您的想法是什么？**
+<!-- 请清晰简洁地描述您预期中的功能。-->
+
+**是否与已知的 issue 相关？**
+<!-- 如果是，请在此注明 -->
+
+**您认为应如何实现此功能？**
+<!-- 请清晰简洁地描述如何实现此功能。-->
+1. 
+2. 
+3. 
+4. 
+
+**有没有额外的信息？**
+<!-- 如果您有额外的信息，请在此处说明。-->

.github/ISSUE_TEMPLATE/question-en.md

@@ -0,0 +1,17 @@
+---
+name: Question
+about: Question of Xray.
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+<!-- Thanks for your support！
+1. Issue is **NOT** a proper place to ask a question, otherwise your issue may be closed.
+2. Please check existing Issues, Discussions and documentation in detail first. You may find the answers you want before you ask the question.
+3. If it is still not resolved, please give feedback in the our official Telegram group or Discussions.
+4. Wherever you ask a question, please *make sure* the content does not contain your private information.
+5. We highly recommend you to read https://github.com/tvvocold/How-To-Ask-Questions-The-Smart-Way.
+-->
+

.github/ISSUE_TEMPLATE/question-zh-CN.md

@@ -0,0 +1,17 @@
+---
+name: 使用疑问
+about: 使用 Xray 时的疑问。
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+<!-- 感谢您的支持！
+1. Issue **不是**用来提问的, 否则将可能会被 close。
+2. 请先查询已有的 issue、discussion ，并且详细阅读文档的相关内容。那里可能有您需要的答案。
+3. 如果仍未解决，请在官方 Telegram 群中或 Discussion 区反馈。
+4. 无论在何处提问，请 *务必确保* 其不包含任何个人隐私信息。
+5. 我们强烈推荐您阅读 https://github.com/tvvocold/How-To-Ask-Questions-The-Smart-Way。
+-->
+

.github/workflows/release.yml

@@ -121,7 +121,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v2
         with:
-          go-version: ^1.17.1
+          go-version: ^1.16
 
       - name: Get project dependencies
         run: go mod download

.github/workflows/test.yml

@@ -28,7 +28,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v2
         with:
-          go-version: ^1.17.1
+          go-version: ^1.16
       - name: Checkout codebase
         uses: actions/checkout@v2
 

README.md

@@ -23,9 +23,8 @@
   - [Xray4Magisk](https://github.com/CerteKim/Xray4Magisk)
   - [Xray_For_Magisk](https://github.com/E7KMbb/Xray_For_Magisk)
 - Homebrew
-  - `brew install xray`
-  - [(Tap) Repository 0](https://github.com/N4FA/homebrew-xray)
-  - [(Tap) Repository 1](https://github.com/xiruizhao/homebrew-xray)
+  - [Repository 0](https://github.com/N4FA/homebrew-xray)
+  - [Repository 1](https://github.com/xiruizhao/homebrew-xray)
 
 ## Usage
 
@@ -40,16 +39,13 @@
   - [luci-app-xray](https://github.com/yichya/luci-app-xray) ([openwrt-xray](https://github.com/yichya/openwrt-xray))
 - Windows
   - [v2rayN](https://github.com/2dust/v2rayN)
-  - [Qv2ray](https://github.com/Qv2ray/Qv2ray)  (This project had been archived and currently inactive)
+  - [Qv2ray](https://github.com/Qv2ray/Qv2ray)
   - [Netch (NetFilter & TUN/TAP)](https://github.com/NetchX/Netch)
 - Android
   - [v2rayNG](https://github.com/2dust/v2rayNG)
-  - [AnXray](https://github.com/XTLS/AnXray)
   - [Kitsunebi](https://github.com/rurirei/Kitsunebi/tree/release_xtls)
-- iOS & macOS (with M1 chip)
+- iOS / Mac
   - [Shadowrocket](https://apps.apple.com/app/shadowrocket/id932747118)
-- macOS (Intel chip & M1 chip)
-  - [Qv2ray](https://github.com/Qv2ray/Qv2ray) (This project had been archived and currently inactive)
 
 ## Credits
 

app/commander/config.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
-// 	protoc        v3.18.0
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.14.0
 // source: app/commander/config.proto
 
 package commander
 
 import (
+	proto "github.com/golang/protobuf/proto"
 	serial "github.com/xtls/xray-core/common/serial"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -21,6 +22,10 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
 // Config is the settings for Commander.
 type Config struct {
 	state         protoimpl.MessageState

app/commander/service.go

@@ -3,10 +3,9 @@ package commander
 import (
 	"context"
 
+	"github.com/xtls/xray-core/common"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/reflection"
-
-	"github.com/xtls/xray-core/common"
 )
 
 // Service is a Commander service.

app/dispatcher/config.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
-// 	protoc        v3.18.0
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.14.0
 // source: app/dispatcher/config.proto
 
 package dispatcher
 
 import (
+	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -20,6 +21,10 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
 type SessionConfig struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

app/dispatcher/default.go

@@ -15,7 +15,6 @@ import (
 	"github.com/xtls/xray-core/common/protocol"
 	"github.com/xtls/xray-core/common/session"
 	"github.com/xtls/xray-core/core"
-	"github.com/xtls/xray-core/features/dns"
 	"github.com/xtls/xray-core/features/outbound"
 	"github.com/xtls/xray-core/features/policy"
 	"github.com/xtls/xray-core/features/routing"
@@ -176,28 +175,17 @@ func (d *DefaultDispatcher) getLink(ctx context.Context) (*transport.Link, *tran
 	return inboundLink, outboundLink
 }
 
-func shouldOverride(ctx context.Context, result SniffResult, request session.SniffingRequest, destination net.Destination) bool {
+func shouldOverride(result SniffResult, request session.SniffingRequest) bool {
 	domain := result.Domain()
 	for _, d := range request.ExcludeForDomain {
-		if strings.ToLower(domain) == d {
+		if domain == d {
 			return false
 		}
 	}
-	var fakeDNSEngine dns.FakeDNSEngine
-	core.RequireFeatures(ctx, func(fdns dns.FakeDNSEngine) {
-		fakeDNSEngine = fdns
-	})
-	protocolString := result.Protocol()
-	if resComp, ok := result.(SnifferResultComposite); ok {
-		protocolString = resComp.ProtocolForDomainResult()
-	}
+
+	protocol := result.Protocol()
 	for _, p := range request.OverrideDestinationForProtocol {
-		if strings.HasPrefix(protocolString, p) {
-			return true
-		}
-		if fakeDNSEngine != nil && protocolString != "bittorrent" && p == "fakedns" &&
-			destination.Address.Family().IsIP() && fakeDNSEngine.GetFakeIPRange().Contains(destination.Address.IP()) {
-			newError("Using sniffer ", protocolString, " since the fake DNS missed").WriteToLog(session.ExportIDToError(ctx))
+		if strings.HasPrefix(protocol, p) {
 			return true
 		}
 	}
@@ -222,33 +210,19 @@ func (d *DefaultDispatcher) Dispatch(ctx context.Context, destination net.Destin
 		ctx = session.ContextWithContent(ctx, content)
 	}
 	sniffingRequest := content.SniffingRequest
-	switch {
-	case !sniffingRequest.Enabled:
+	if destination.Network != net.Network_TCP || !sniffingRequest.Enabled {
 		go d.routedDispatch(ctx, outbound, destination)
-	case destination.Network != net.Network_TCP:
-		// Only metadata sniff will be used for non tcp connection
-		result, err := sniffer(ctx, nil, true)
-		if err == nil {
-			content.Protocol = result.Protocol()
-			if shouldOverride(ctx, result, sniffingRequest, destination) {
-				domain := result.Domain()
-				newError("sniffed domain: ", domain).WriteToLog(session.ExportIDToError(ctx))
-				destination.Address = net.ParseAddress(domain)
-				ob.Target = destination
-			}
-		}
-		go d.routedDispatch(ctx, outbound, destination)
-	default:
+	} else {
 		go func() {
 			cReader := &cachedReader{
 				reader: outbound.Reader.(*pipe.Reader),
 			}
 			outbound.Reader = cReader
-			result, err := sniffer(ctx, cReader, sniffingRequest.MetadataOnly)
+			result, err := sniffer(ctx, cReader)
 			if err == nil {
 				content.Protocol = result.Protocol()
 			}
-			if err == nil && shouldOverride(ctx, result, sniffingRequest, destination) {
+			if err == nil && shouldOverride(result, sniffingRequest) {
 				domain := result.Domain()
 				newError("sniffed domain: ", domain).WriteToLog(session.ExportIDToError(ctx))
 				destination.Address = net.ParseAddress(domain)
@@ -260,19 +234,11 @@ func (d *DefaultDispatcher) Dispatch(ctx context.Context, destination net.Destin
 	return inbound, nil
 }
 
-func sniffer(ctx context.Context, cReader *cachedReader, metadataOnly bool) (SniffResult, error) {
+func sniffer(ctx context.Context, cReader *cachedReader) (SniffResult, error) {
 	payload := buf.New()
 	defer payload.Release()
 
-	sniffer := NewSniffer(ctx)
-
-	metaresult, metadataErr := sniffer.SniffMetadata(ctx)
-
-	if metadataOnly {
-		return metaresult, metadataErr
-	}
-
-	contentResult, contentErr := func() (SniffResult, error) {
+	sniffer := NewSniffer()
 	totalAttempt := 0
 	for {
 		select {
@@ -286,7 +252,7 @@ func sniffer(ctx context.Context, cReader *cachedReader, metadataOnly bool) (Sni
 
 			cReader.Cache(payload)
 			if !payload.IsEmpty() {
-					result, err := sniffer.Sniff(ctx, payload.Bytes())
+				result, err := sniffer.Sniff(payload.Bytes())
 				if err != common.ErrNoClue {
 					return result, err
 				}
@@ -296,14 +262,6 @@ func sniffer(ctx context.Context, cReader *cachedReader, metadataOnly bool) (Sni
 			}
 		}
 	}
-	}()
-	if contentErr != nil && metadataErr == nil {
-		return metaresult, nil
-	}
-	if contentErr == nil && metadataErr == nil {
-		return CompositeResult(metaresult, contentResult), nil
-	}
-	return contentResult, contentErr
 }
 
 func (d *DefaultDispatcher) routedDispatch(ctx context.Context, link *transport.Link, destination net.Destination) {

app/dispatcher/fakednssniffer.go

@@ -1,49 +0,0 @@
-package dispatcher
-
-import (
-	"context"
-
-	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/common/session"
-	"github.com/xtls/xray-core/core"
-	"github.com/xtls/xray-core/features/dns"
-)
-
-// newFakeDNSSniffer Create a Fake DNS metadata sniffer
-func newFakeDNSSniffer(ctx context.Context) (protocolSnifferWithMetadata, error) {
-	var fakeDNSEngine dns.FakeDNSEngine
-	err := core.RequireFeatures(ctx, func(fdns dns.FakeDNSEngine) {
-		fakeDNSEngine = fdns
-	})
-	if err != nil {
-		return protocolSnifferWithMetadata{}, err
-	}
-	if fakeDNSEngine == nil {
-		errNotInit := newError("FakeDNSEngine is not initialized, but such a sniffer is used").AtError()
-		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)
-			if domainFromFakeDNS != "" {
-				newError("fake dns got domain: ", domainFromFakeDNS, " for ip: ", Target.Address.String()).WriteToLog(session.ExportIDToError(ctx))
-				return &fakeDNSSniffResult{domainName: domainFromFakeDNS}, nil
-			}
-		}
-		return nil, common.ErrNoClue
-	}, metadataSniffer: true}, nil
-}
-
-type fakeDNSSniffResult struct {
-	domainName string
-}
-
-func (fakeDNSSniffResult) Protocol() string {
-	return "fakedns"
-}
-
-func (f fakeDNSSniffResult) Domain() string {
-	return f.domainName
-}

app/dispatcher/sniffer.go

@@ -1,8 +1,6 @@
 package dispatcher
 
 import (
-	"context"
-
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/protocol/bittorrent"
 	"github.com/xtls/xray-core/common/protocol/http"
@@ -14,46 +12,30 @@ type SniffResult interface {
 	Domain() string
 }
 
-type protocolSniffer func(context.Context, []byte) (SniffResult, error)
-
-type protocolSnifferWithMetadata struct {
-	protocolSniffer protocolSniffer
-	// A Metadata sniffer will be invoked on connection establishment only, with nil body,
-	// for both TCP and UDP connections
-	// It will not be shown as a traffic type for routing unless there is no other successful sniffing.
-	metadataSniffer bool
-}
+type protocolSniffer func([]byte) (SniffResult, error)
 
 type Sniffer struct {
-	sniffer []protocolSnifferWithMetadata
+	sniffer []protocolSniffer
 }
 
-func NewSniffer(ctx context.Context) *Sniffer {
-	ret := &Sniffer{
-		sniffer: []protocolSnifferWithMetadata{
-			{func(c context.Context, b []byte) (SniffResult, error) { return http.SniffHTTP(b) }, false},
-			{func(c context.Context, b []byte) (SniffResult, error) { return tls.SniffTLS(b) }, false},
-			{func(c context.Context, b []byte) (SniffResult, error) { return bittorrent.SniffBittorrent(b) }, false},
+func NewSniffer() *Sniffer {
+	return &Sniffer{
+		sniffer: []protocolSniffer{
+			func(b []byte) (SniffResult, error) { return http.SniffHTTP(b) },
+			func(b []byte) (SniffResult, error) { return tls.SniffTLS(b) },
+			func(b []byte) (SniffResult, error) { return bittorrent.SniffBittorrent(b) },
 		},
 	}
-	if sniffer, err := newFakeDNSSniffer(ctx); err == nil {
-		ret.sniffer = append(ret.sniffer, sniffer)
-	}
-	return ret
 }
 
 var errUnknownContent = newError("unknown content")
 
-func (s *Sniffer) Sniff(c context.Context, payload []byte) (SniffResult, error) {
-	var pendingSniffer []protocolSnifferWithMetadata
-	for _, si := range s.sniffer {
-		s := si.protocolSniffer
-		if si.metadataSniffer {
-			continue
-		}
-		result, err := s(c, payload)
+func (s *Sniffer) Sniff(payload []byte) (SniffResult, error) {
+	var pendingSniffer []protocolSniffer
+	for _, s := range s.sniffer {
+		result, err := s(payload)
 		if err == common.ErrNoClue {
-			pendingSniffer = append(pendingSniffer, si)
+			pendingSniffer = append(pendingSniffer, s)
 			continue
 		}
 
@@ -69,55 +51,3 @@ func (s *Sniffer) Sniff(c context.Context, payload []byte) (SniffResult, error)
 
 	return nil, errUnknownContent
 }
-
-func (s *Sniffer) SniffMetadata(c context.Context) (SniffResult, error) {
-	var pendingSniffer []protocolSnifferWithMetadata
-	for _, si := range s.sniffer {
-		s := si.protocolSniffer
-		if !si.metadataSniffer {
-			pendingSniffer = append(pendingSniffer, si)
-			continue
-		}
-		result, err := s(c, nil)
-		if err == common.ErrNoClue {
-			pendingSniffer = append(pendingSniffer, si)
-			continue
-		}
-
-		if err == nil && result != nil {
-			return result, nil
-		}
-	}
-
-	if len(pendingSniffer) > 0 {
-		s.sniffer = pendingSniffer
-		return nil, common.ErrNoClue
-	}
-
-	return nil, errUnknownContent
-}
-
-func CompositeResult(domainResult SniffResult, protocolResult SniffResult) SniffResult {
-	return &compositeResult{domainResult: domainResult, protocolResult: protocolResult}
-}
-
-type compositeResult struct {
-	domainResult   SniffResult
-	protocolResult SniffResult
-}
-
-func (c compositeResult) Protocol() string {
-	return c.protocolResult.Protocol()
-}
-
-func (c compositeResult) Domain() string {
-	return c.domainResult.Domain()
-}
-
-func (c compositeResult) ProtocolForDomainResult() string {
-	return c.domainResult.Protocol()
-}
-
-type SnifferResultComposite interface {
-	ProtocolForDomainResult() string
-}

app/dns/config.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
-// 	protoc        v3.18.0
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.14.0
 // source: app/dns/config.proto
 
 package dns
 
 import (
+	proto "github.com/golang/protobuf/proto"
 	router "github.com/xtls/xray-core/app/router"
 	net "github.com/xtls/xray-core/common/net"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
@@ -22,6 +23,10 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
 type DomainMatchingType int32
 
 const (
@@ -468,7 +473,7 @@ var file_app_dns_config_proto_rawDesc = []byte{
 	0x0c, 0x4f, 0x72, 0x69, 0x67, 0x69, 0x6e, 0x61, 0x6c, 0x52, 0x75, 0x6c, 0x65, 0x12, 0x12, 0x0a,
 	0x04, 0x72, 0x75, 0x6c, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x72, 0x75, 0x6c,
 	0x65, 0x12, 0x12, 0x0a, 0x04, 0x73, 0x69, 0x7a, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0d, 0x52,
-	0x04, 0x73, 0x69, 0x7a, 0x65, 0x22, 0xa5, 0x04, 0x0a, 0x06, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67,
+	0x04, 0x73, 0x69, 0x7a, 0x65, 0x22, 0x9f, 0x04, 0x0a, 0x06, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67,
 	0x12, 0x3f, 0x0a, 0x0b, 0x4e, 0x61, 0x6d, 0x65, 0x53, 0x65, 0x72, 0x76, 0x65, 0x72, 0x73, 0x18,
 	0x01, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x19, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x6d,
 	0x6d, 0x6f, 0x6e, 0x2e, 0x6e, 0x65, 0x74, 0x2e, 0x45, 0x6e, 0x64, 0x70, 0x6f, 0x69, 0x6e, 0x74,
@@ -502,17 +507,16 @@ var file_app_dns_config_proto_rawDesc = []byte{
 	0x12, 0x0e, 0x0a, 0x02, 0x69, 0x70, 0x18, 0x03, 0x20, 0x03, 0x28, 0x0c, 0x52, 0x02, 0x69, 0x70,
 	0x12, 0x25, 0x0a, 0x0e, 0x70, 0x72, 0x6f, 0x78, 0x69, 0x65, 0x64, 0x5f, 0x64, 0x6f, 0x6d, 0x61,
 	0x69, 0x6e, 0x18, 0x04, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0d, 0x70, 0x72, 0x6f, 0x78, 0x69, 0x65,
-	0x64, 0x44, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x4a, 0x04, 0x08, 0x07, 0x10, 0x08, 0x2a, 0x45, 0x0a,
-	0x12, 0x44, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x4d, 0x61, 0x74, 0x63, 0x68, 0x69, 0x6e, 0x67, 0x54,
-	0x79, 0x70, 0x65, 0x12, 0x08, 0x0a, 0x04, 0x46, 0x75, 0x6c, 0x6c, 0x10, 0x00, 0x12, 0x0d, 0x0a,
-	0x09, 0x53, 0x75, 0x62, 0x64, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x10, 0x01, 0x12, 0x0b, 0x0a, 0x07,
-	0x4b, 0x65, 0x79, 0x77, 0x6f, 0x72, 0x64, 0x10, 0x02, 0x12, 0x09, 0x0a, 0x05, 0x52, 0x65, 0x67,
-	0x65, 0x78, 0x10, 0x03, 0x42, 0x46, 0x0a, 0x10, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79,
-	0x2e, 0x61, 0x70, 0x70, 0x2e, 0x64, 0x6e, 0x73, 0x50, 0x01, 0x5a, 0x21, 0x67, 0x69, 0x74, 0x68,
-	0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79,
-	0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x61, 0x70, 0x70, 0x2f, 0x64, 0x6e, 0x73, 0xaa, 0x02, 0x0c,
-	0x58, 0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x44, 0x6e, 0x73, 0x62, 0x06, 0x70, 0x72,
-	0x6f, 0x74, 0x6f, 0x33,
+	0x64, 0x44, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x2a, 0x45, 0x0a, 0x12, 0x44, 0x6f, 0x6d, 0x61, 0x69,
+	0x6e, 0x4d, 0x61, 0x74, 0x63, 0x68, 0x69, 0x6e, 0x67, 0x54, 0x79, 0x70, 0x65, 0x12, 0x08, 0x0a,
+	0x04, 0x46, 0x75, 0x6c, 0x6c, 0x10, 0x00, 0x12, 0x0d, 0x0a, 0x09, 0x53, 0x75, 0x62, 0x64, 0x6f,
+	0x6d, 0x61, 0x69, 0x6e, 0x10, 0x01, 0x12, 0x0b, 0x0a, 0x07, 0x4b, 0x65, 0x79, 0x77, 0x6f, 0x72,
+	0x64, 0x10, 0x02, 0x12, 0x09, 0x0a, 0x05, 0x52, 0x65, 0x67, 0x65, 0x78, 0x10, 0x03, 0x42, 0x46,
+	0x0a, 0x10, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x64,
+	0x6e, 0x73, 0x50, 0x01, 0x5a, 0x21, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d,
+	0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f,
+	0x61, 0x70, 0x70, 0x2f, 0x64, 0x6e, 0x73, 0xaa, 0x02, 0x0c, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x41,
+	0x70, 0x70, 0x2e, 0x44, 0x6e, 0x73, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (

app/dns/config.proto

@@ -68,6 +68,4 @@ message Config {
 
   // Tag is the inbound tag of DNS client.
   string tag = 6;
-
-  reserved 7;
 }

app/dns/dnscommon.go

@@ -2,20 +2,18 @@ package dns
 
 import (
 	"encoding/binary"
-	"strings"
 	"time"
 
-	"golang.org/x/net/dns/dnsmessage"
-
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
 	dns_feature "github.com/xtls/xray-core/features/dns"
+	"golang.org/x/net/dns/dnsmessage"
 )
 
 // Fqdn normalize domain make sure it ends with '.'
 func Fqdn(domain string) string {
-	if len(domain) > 0 && strings.HasSuffix(domain, ".") {
+	if len(domain) > 0 && domain[len(domain)-1] == '.' {
 		return domain
 	}
 	return domain + "."
@@ -114,7 +112,7 @@ func genEDNS0Options(clientIP net.IP) *dnsmessage.Resource {
 	return opt
 }
 
-func buildReqMsgs(domain string, option dns_feature.IPOption, reqIDGen func() uint16, reqOpts *dnsmessage.Resource) []*dnsRequest {
+func buildReqMsgs(domain string, option IPOption, reqIDGen func() uint16, reqOpts *dnsmessage.Resource) []*dnsRequest {
 	qA := dnsmessage.Question{
 		Name:  dnsmessage.MustNewName(domain),
 		Type:  dnsmessage.TypeA,

app/dns/dnscommon_test.go

@@ -7,11 +7,9 @@ import (
 
 	"github.com/google/go-cmp/cmp"
 	"github.com/miekg/dns"
-	"golang.org/x/net/dns/dnsmessage"
-
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/net"
-	dns_feature "github.com/xtls/xray-core/features/dns"
+	"golang.org/x/net/dns/dnsmessage"
 )
 
 func Test_parseResponse(t *testing.T) {
@@ -94,7 +92,7 @@ func Test_buildReqMsgs(t *testing.T) {
 	}
 	type args struct {
 		domain  string
-		option  dns_feature.IPOption
+		option  IPOption
 		reqOpts *dnsmessage.Resource
 	}
 	tests := []struct {
@@ -102,26 +100,10 @@ func Test_buildReqMsgs(t *testing.T) {
 		args args
 		want int
 	}{
-		{"dual stack", args{"test.com", dns_feature.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		}, nil}, 2},
-		{"ipv4 only", args{"test.com", dns_feature.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: false,
-			FakeEnable: false,
-		}, nil}, 1},
-		{"ipv6 only", args{"test.com", dns_feature.IPOption{
-			IPv4Enable: false,
-			IPv6Enable: true,
-			FakeEnable: false,
-		}, nil}, 1},
-		{"none/error", args{"test.com", dns_feature.IPOption{
-			IPv4Enable: false,
-			IPv6Enable: false,
-			FakeEnable: false,
-		}, nil}, 0},
+		{"dual stack", args{"test.com", IPOption{true, true}, nil}, 2},
+		{"ipv4 only", args{"test.com", IPOption{true, false}, nil}, 1},
+		{"ipv6 only", args{"test.com", IPOption{false, true}, nil}, 1},
+		{"none/error", args{"test.com", IPOption{false, false}, nil}, 0},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {

app/dns/dohdns.go

@@ -12,10 +12,7 @@ import (
 	"sync/atomic"
 	"time"
 
-	"golang.org/x/net/dns/dnsmessage"
-
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/log"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/net/cnc"
 	"github.com/xtls/xray-core/common/protocol/dns"
@@ -25,6 +22,7 @@ import (
 	dns_feature "github.com/xtls/xray-core/features/dns"
 	"github.com/xtls/xray-core/features/routing"
 	"github.com/xtls/xray-core/transport/internet"
+	"golang.org/x/net/dns/dnsmessage"
 )
 
 // DoHNameServer implemented DNS over HTTPS (RFC8484) Wire Format,
@@ -49,57 +47,6 @@ func NewDoHNameServer(url *url.URL, dispatcher routing.Dispatcher, clientIP net.
 	s := baseDOHNameServer(url, "DOH", clientIP)
 
 	s.dispatcher = dispatcher
-	tr := &http.Transport{
-		MaxIdleConns:        30,
-		IdleConnTimeout:     90 * time.Second,
-		TLSHandshakeTimeout: 30 * time.Second,
-		ForceAttemptHTTP2:   true,
-		DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
-			dispatcherCtx := context.Background()
-
-			dest, err := net.ParseDestination(network + ":" + addr)
-			if err != nil {
-				return nil, err
-			}
-
-			dispatcherCtx = session.ContextWithContent(dispatcherCtx, session.ContentFromContext(ctx))
-			dispatcherCtx = session.ContextWithInbound(dispatcherCtx, session.InboundFromContext(ctx))
-			dispatcherCtx = log.ContextWithAccessMessage(dispatcherCtx, &log.AccessMessage{
-				From:   "DoH",
-				To:     s.dohURL,
-				Status: log.AccessAccepted,
-				Reason: "",
-			})
-
-			link, err := s.dispatcher.Dispatch(dispatcherCtx, dest)
-			select {
-			case <-ctx.Done():
-				return nil, ctx.Err()
-			default:
-
-			}
-			if err != nil {
-				return nil, err
-			}
-
-			cc := common.ChainedClosable{}
-			if cw, ok := link.Writer.(common.Closable); ok {
-				cc = append(cc, cw)
-			}
-			if cr, ok := link.Reader.(common.Closable); ok {
-				cc = append(cc, cr)
-			}
-			return cnc.NewConnection(
-				cnc.ConnectionInputMulti(link.Writer),
-				cnc.ConnectionOutputMulti(link.Reader),
-				cnc.ConnectionOnClose(cc),
-			), nil
-		},
-	}
-	s.httpClient = &http.Client{
-		Timeout:   time.Second * 180,
-		Transport: tr,
-	}
 
 	return s, nil
 }
@@ -117,12 +64,6 @@ func NewDoHLocalNameServer(url *url.URL, clientIP net.IP) *DoHNameServer {
 				return nil, err
 			}
 			conn, err := internet.DialSystem(ctx, dest, nil)
-			log.Record(&log.AccessMessage{
-				From:   "DoH",
-				To:     s.dohURL,
-				Status: log.AccessAccepted,
-				Detour: "local",
-			})
 			if err != nil {
 				return nil, err
 			}
@@ -236,7 +177,7 @@ func (s *DoHNameServer) newReqID() uint16 {
 	return uint16(atomic.AddUint32(&s.reqID, 1))
 }
 
-func (s *DoHNameServer) sendQuery(ctx context.Context, domain string, option dns_feature.IPOption) {
+func (s *DoHNameServer) sendQuery(ctx context.Context, domain string, option IPOption) {
 	newError(s.name, " querying: ", domain).AtInfo().WriteToLog(session.ExportIDToError(ctx))
 
 	if s.name+"." == "DOH//"+domain {
@@ -308,6 +249,41 @@ func (s *DoHNameServer) dohHTTPSContext(ctx context.Context, b []byte) ([]byte,
 
 	hc := s.httpClient
 
+	// Dispatched connection will be closed (interrupted) after each request
+	// This makes DOH inefficient without a keep-alived connection
+	// See: core/app/proxyman/outbound/handler.go:113
+	// Using mux (https request wrapped in a stream layer) improves the situation.
+	// Recommend to use NewDoHLocalNameServer (DOHL:) if xray instance is running on
+	//  a normal network eg. the server side of xray
+
+	if s.dispatcher != nil {
+		tr := &http.Transport{
+			MaxIdleConns:        30,
+			IdleConnTimeout:     90 * time.Second,
+			TLSHandshakeTimeout: 30 * time.Second,
+			ForceAttemptHTTP2:   true,
+			DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
+				dest, err := net.ParseDestination(network + ":" + addr)
+				if err != nil {
+					return nil, err
+				}
+
+				link, err := s.dispatcher.Dispatch(ctx, dest)
+				if err != nil {
+					return nil, err
+				}
+				return cnc.NewConnection(
+					cnc.ConnectionInputMulti(link.Writer),
+					cnc.ConnectionOutputMulti(link.Reader),
+				), nil
+			},
+		}
+		hc = &http.Client{
+			Timeout:   time.Second * 180,
+			Transport: tr,
+		}
+	}
+
 	resp, err := hc.Do(req.WithContext(ctx))
 	if err != nil {
 		return nil, err
@@ -322,7 +298,7 @@ func (s *DoHNameServer) dohHTTPSContext(ctx context.Context, b []byte) ([]byte,
 	return ioutil.ReadAll(resp.Body)
 }
 
-func (s *DoHNameServer) findIPsForDomain(domain string, option dns_feature.IPOption) ([]net.IP, error) {
+func (s *DoHNameServer) findIPsForDomain(domain string, option IPOption) ([]net.IP, error) {
 	s.RLock()
 	record, found := s.ips[domain]
 	s.RUnlock()
@@ -365,13 +341,12 @@ func (s *DoHNameServer) findIPsForDomain(domain string, option dns_feature.IPOpt
 }
 
 // QueryIP is called from dns.Server->queryIPTimeout
-func (s *DoHNameServer) QueryIP(ctx context.Context, domain string, option dns_feature.IPOption) ([]net.IP, error) { // nolint: dupl
+func (s *DoHNameServer) QueryIP(ctx context.Context, domain string, option IPOption) ([]net.IP, error) {
 	fqdn := Fqdn(domain)
 
 	ips, err := s.findIPsForDomain(fqdn, option)
 	if err != errRecordNotFound {
 		newError(s.name, " cache HIT ", domain, " -> ", ips).Base(err).AtDebug().WriteToLog()
-		log.Record(&log.DNSLog{s.name, domain, ips, log.DNSCacheHit, 0, err})
 		return ips, err
 	}
 
@@ -402,12 +377,10 @@ func (s *DoHNameServer) QueryIP(ctx context.Context, domain string, option dns_f
 		close(done)
 	}()
 	s.sendQuery(ctx, fqdn, option)
-	start := time.Now()
 
 	for {
 		ips, err := s.findIPsForDomain(fqdn, option)
 		if err != errRecordNotFound {
-			log.Record(&log.DNSLog{s.name, domain, ips, log.DNSQueried, time.Since(start), err})
 			return ips, err
 		}
 

app/dns/fakedns/errors.generated.go

@@ -1,9 +0,0 @@
-package fakedns
-
-import "github.com/xtls/xray-core/common/errors"
-
-type errPathObjHolder struct{}
-
-func newError(values ...interface{}) *errors.Error {
-	return errors.New(values...).WithPathObj(errPathObjHolder{})
-}

app/dns/fakedns/fake.go

@@ -1,134 +0,0 @@
-package fakedns
-
-import (
-	"context"
-	"math"
-	"math/big"
-	gonet "net"
-	"time"
-
-	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/cache"
-	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/features/dns"
-)
-
-type Holder struct {
-	domainToIP cache.Lru
-	ipRange    *gonet.IPNet
-
-	config *FakeDnsPool
-}
-
-func (*Holder) Type() interface{} {
-	return (*dns.FakeDNSEngine)(nil)
-}
-
-func (fkdns *Holder) Start() error {
-	return fkdns.initializeFromConfig()
-}
-
-func (fkdns *Holder) Close() error {
-	fkdns.domainToIP = nil
-	fkdns.ipRange = nil
-	return nil
-}
-
-func NewFakeDNSHolder() (*Holder, error) {
-	var fkdns *Holder
-	var err error
-
-	if fkdns, err = NewFakeDNSHolderConfigOnly(nil); err != nil {
-		return nil, newError("Unable to create Fake Dns Engine").Base(err).AtError()
-	}
-	err = fkdns.initialize(dns.FakeIPPool, 65535)
-	if err != nil {
-		return nil, err
-	}
-	return fkdns, nil
-}
-
-func NewFakeDNSHolderConfigOnly(conf *FakeDnsPool) (*Holder, error) {
-	return &Holder{nil, nil, conf}, nil
-}
-
-func (fkdns *Holder) initializeFromConfig() error {
-	return fkdns.initialize(fkdns.config.IpPool, int(fkdns.config.LruSize))
-}
-
-func (fkdns *Holder) initialize(ipPoolCidr string, lruSize int) error {
-	var ipRange *gonet.IPNet
-	var err error
-
-	if _, ipRange, err = gonet.ParseCIDR(ipPoolCidr); err != nil {
-		return newError("Unable to parse CIDR for Fake DNS IP assignment").Base(err).AtError()
-	}
-
-	ones, bits := ipRange.Mask.Size()
-	rooms := bits - ones
-	if math.Log2(float64(lruSize)) >= float64(rooms) {
-		return newError("LRU size is bigger than subnet size").AtError()
-	}
-	fkdns.domainToIP = cache.NewLru(lruSize)
-	fkdns.ipRange = ipRange
-	return nil
-}
-
-// GetFakeIPForDomain check and generate a fake IP for a domain name
-func (fkdns *Holder) GetFakeIPForDomain(domain string) []net.Address {
-	if v, ok := fkdns.domainToIP.Get(domain); ok {
-		return []net.Address{v.(net.Address)}
-	}
-	var currentTimeMillis = uint64(time.Now().UnixNano() / 1e6)
-	ones, bits := fkdns.ipRange.Mask.Size()
-	rooms := bits - ones
-	if rooms < 64 {
-		currentTimeMillis %= (uint64(1) << rooms)
-	}
-	var bigIntIP = big.NewInt(0).SetBytes(fkdns.ipRange.IP)
-	bigIntIP = bigIntIP.Add(bigIntIP, new(big.Int).SetUint64(currentTimeMillis))
-	var ip net.Address
-	for {
-		ip = net.IPAddress(bigIntIP.Bytes())
-
-		// if we run for a long time, we may go back to beginning and start seeing the IP in use
-		if _, ok := fkdns.domainToIP.PeekKeyFromValue(ip); !ok {
-			break
-		}
-
-		bigIntIP = bigIntIP.Add(bigIntIP, big.NewInt(1))
-		if !fkdns.ipRange.Contains(bigIntIP.Bytes()) {
-			bigIntIP = big.NewInt(0).SetBytes(fkdns.ipRange.IP)
-		}
-	}
-	fkdns.domainToIP.Put(domain, ip)
-	return []net.Address{ip}
-}
-
-// GetDomainFromFakeDNS check if an IP is a fake IP and have corresponding domain name
-func (fkdns *Holder) GetDomainFromFakeDNS(ip net.Address) string {
-	if !ip.Family().IsIP() || !fkdns.ipRange.Contains(ip.IP()) {
-		return ""
-	}
-	if k, ok := fkdns.domainToIP.GetKeyFromValue(ip); ok {
-		return k.(string)
-	}
-	newError("A fake ip request to ", ip, ", however there is no matching domain name in fake DNS").AtInfo().WriteToLog()
-	return ""
-}
-
-// GetFakeIPRange return fake IP range from configuration
-func (fkdns *Holder) GetFakeIPRange() *gonet.IPNet {
-	return fkdns.ipRange
-}
-
-func init() {
-	common.Must(common.RegisterConfig((*FakeDnsPool)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
-		var f *Holder
-		var err error
-		if f, err = NewFakeDNSHolderConfigOnly(config.(*FakeDnsPool)); err != nil {
-			return nil, err
-		}
-		return f, nil
-	}))
-}

app/dns/fakedns/fakedns.go

@@ -1,3 +0,0 @@
-package fakedns
-
-//go:generate go run github.com/xtls/xray-core/common/errors/errorgen

app/dns/fakedns/fakedns.pb.go

@@ -1,158 +0,0 @@
-// Code generated by protoc-gen-go. DO NOT EDIT.
-// versions:
-// 	protoc-gen-go v1.27.1
-// 	protoc        v3.18.0
-// source: app/dns/fakedns/fakedns.proto
-
-package fakedns
-
-import (
-	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
-	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
-	reflect "reflect"
-	sync "sync"
-)
-
-const (
-	// Verify that this generated code is sufficiently up-to-date.
-	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
-	// Verify that runtime/protoimpl is sufficiently up-to-date.
-	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
-)
-
-type FakeDnsPool struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	IpPool  string `protobuf:"bytes,1,opt,name=ip_pool,json=ipPool,proto3" json:"ip_pool,omitempty"` //CIDR of IP pool used as fake DNS IP
-	LruSize int64  `protobuf:"varint,2,opt,name=lruSize,proto3" json:"lruSize,omitempty"`            //Size of Pool for remembering relationship between domain name and IP address
-}
-
-func (x *FakeDnsPool) Reset() {
-	*x = FakeDnsPool{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_app_dns_fakedns_fakedns_proto_msgTypes[0]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *FakeDnsPool) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*FakeDnsPool) ProtoMessage() {}
-
-func (x *FakeDnsPool) ProtoReflect() protoreflect.Message {
-	mi := &file_app_dns_fakedns_fakedns_proto_msgTypes[0]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use FakeDnsPool.ProtoReflect.Descriptor instead.
-func (*FakeDnsPool) Descriptor() ([]byte, []int) {
-	return file_app_dns_fakedns_fakedns_proto_rawDescGZIP(), []int{0}
-}
-
-func (x *FakeDnsPool) GetIpPool() string {
-	if x != nil {
-		return x.IpPool
-	}
-	return ""
-}
-
-func (x *FakeDnsPool) GetLruSize() int64 {
-	if x != nil {
-		return x.LruSize
-	}
-	return 0
-}
-
-var File_app_dns_fakedns_fakedns_proto protoreflect.FileDescriptor
-
-var file_app_dns_fakedns_fakedns_proto_rawDesc = []byte{
-	0x0a, 0x1d, 0x61, 0x70, 0x70, 0x2f, 0x64, 0x6e, 0x73, 0x2f, 0x66, 0x61, 0x6b, 0x65, 0x64, 0x6e,
-	0x73, 0x2f, 0x66, 0x61, 0x6b, 0x65, 0x64, 0x6e, 0x73, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12,
-	0x14, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x64, 0x6e, 0x73, 0x2e, 0x66, 0x61,
-	0x6b, 0x65, 0x64, 0x6e, 0x73, 0x22, 0x40, 0x0a, 0x0b, 0x46, 0x61, 0x6b, 0x65, 0x44, 0x6e, 0x73,
-	0x50, 0x6f, 0x6f, 0x6c, 0x12, 0x17, 0x0a, 0x07, 0x69, 0x70, 0x5f, 0x70, 0x6f, 0x6f, 0x6c, 0x18,
-	0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x06, 0x69, 0x70, 0x50, 0x6f, 0x6f, 0x6c, 0x12, 0x18, 0x0a,
-	0x07, 0x6c, 0x72, 0x75, 0x53, 0x69, 0x7a, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x03, 0x52, 0x07,
-	0x6c, 0x72, 0x75, 0x53, 0x69, 0x7a, 0x65, 0x42, 0x5e, 0x0a, 0x18, 0x63, 0x6f, 0x6d, 0x2e, 0x78,
-	0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x64, 0x6e, 0x73, 0x2e, 0x66, 0x61, 0x6b, 0x65,
-	0x64, 0x6e, 0x73, 0x50, 0x01, 0x5a, 0x29, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f,
-	0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65,
-	0x2f, 0x61, 0x70, 0x70, 0x2f, 0x64, 0x6e, 0x73, 0x2f, 0x66, 0x61, 0x6b, 0x65, 0x64, 0x6e, 0x73,
-	0xaa, 0x02, 0x14, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x44, 0x6e, 0x73, 0x2e,
-	0x46, 0x61, 0x6b, 0x65, 0x64, 0x6e, 0x73, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
-}
-
-var (
-	file_app_dns_fakedns_fakedns_proto_rawDescOnce sync.Once
-	file_app_dns_fakedns_fakedns_proto_rawDescData = file_app_dns_fakedns_fakedns_proto_rawDesc
-)
-
-func file_app_dns_fakedns_fakedns_proto_rawDescGZIP() []byte {
-	file_app_dns_fakedns_fakedns_proto_rawDescOnce.Do(func() {
-		file_app_dns_fakedns_fakedns_proto_rawDescData = protoimpl.X.CompressGZIP(file_app_dns_fakedns_fakedns_proto_rawDescData)
-	})
-	return file_app_dns_fakedns_fakedns_proto_rawDescData
-}
-
-var file_app_dns_fakedns_fakedns_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
-var file_app_dns_fakedns_fakedns_proto_goTypes = []interface{}{
-	(*FakeDnsPool)(nil), // 0: xray.app.dns.fakedns.FakeDnsPool
-}
-var file_app_dns_fakedns_fakedns_proto_depIdxs = []int32{
-	0, // [0:0] is the sub-list for method output_type
-	0, // [0:0] is the sub-list for method input_type
-	0, // [0:0] is the sub-list for extension type_name
-	0, // [0:0] is the sub-list for extension extendee
-	0, // [0:0] is the sub-list for field type_name
-}
-
-func init() { file_app_dns_fakedns_fakedns_proto_init() }
-func file_app_dns_fakedns_fakedns_proto_init() {
-	if File_app_dns_fakedns_fakedns_proto != nil {
-		return
-	}
-	if !protoimpl.UnsafeEnabled {
-		file_app_dns_fakedns_fakedns_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*FakeDnsPool); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-	}
-	type x struct{}
-	out := protoimpl.TypeBuilder{
-		File: protoimpl.DescBuilder{
-			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
-			RawDescriptor: file_app_dns_fakedns_fakedns_proto_rawDesc,
-			NumEnums:      0,
-			NumMessages:   1,
-			NumExtensions: 0,
-			NumServices:   0,
-		},
-		GoTypes:           file_app_dns_fakedns_fakedns_proto_goTypes,
-		DependencyIndexes: file_app_dns_fakedns_fakedns_proto_depIdxs,
-		MessageInfos:      file_app_dns_fakedns_fakedns_proto_msgTypes,
-	}.Build()
-	File_app_dns_fakedns_fakedns_proto = out.File
-	file_app_dns_fakedns_fakedns_proto_rawDesc = nil
-	file_app_dns_fakedns_fakedns_proto_goTypes = nil
-	file_app_dns_fakedns_fakedns_proto_depIdxs = nil
-}

app/dns/fakedns/fakedns.proto

@@ -1,12 +0,0 @@
-syntax = "proto3";
-
-package xray.app.dns.fakedns;
-option csharp_namespace = "Xray.App.Dns.Fakedns";
-option go_package = "github.com/xtls/xray-core/app/dns/fakedns";
-option java_package = "com.xray.app.dns.fakedns";
-option java_multiple_files = true;
-
-message FakeDnsPool{
-  string ip_pool = 1; //CIDR of IP pool used as fake DNS IP
-  int64  lruSize = 2; //Size of Pool for remembering relationship between domain name and IP address
-}

app/dns/fakedns/fakedns_test.go

@@ -1,105 +0,0 @@
-package fakedns
-
-import (
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-
-	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/common/uuid"
-	"github.com/xtls/xray-core/features/dns"
-)
-
-var (
-	ipPrefix = "198.18."
-)
-
-func TestNewFakeDnsHolder(_ *testing.T) {
-	_, err := NewFakeDNSHolder()
-	common.Must(err)
-}
-
-func TestFakeDnsHolderCreateMapping(t *testing.T) {
-	fkdns, err := NewFakeDNSHolder()
-	common.Must(err)
-
-	addr := fkdns.GetFakeIPForDomain("fakednstest.example.com")
-	assert.Equal(t, ipPrefix, addr[0].IP().String()[0:len(ipPrefix)])
-}
-
-func TestFakeDnsHolderCreateMappingMany(t *testing.T) {
-	fkdns, err := NewFakeDNSHolder()
-	common.Must(err)
-
-	addr := fkdns.GetFakeIPForDomain("fakednstest.example.com")
-	assert.Equal(t, ipPrefix, addr[0].IP().String()[0:len(ipPrefix)])
-
-	addr2 := fkdns.GetFakeIPForDomain("fakednstest2.example.com")
-	assert.Equal(t, ipPrefix, addr2[0].IP().String()[0:len(ipPrefix)])
-	assert.NotEqual(t, addr[0].IP().String(), addr2[0].IP().String())
-}
-
-func TestFakeDnsHolderCreateMappingManyAndResolve(t *testing.T) {
-	fkdns, err := NewFakeDNSHolder()
-	common.Must(err)
-
-	addr := fkdns.GetFakeIPForDomain("fakednstest.example.com")
-	addr2 := fkdns.GetFakeIPForDomain("fakednstest2.example.com")
-
-	{
-		result := fkdns.GetDomainFromFakeDNS(addr[0])
-		assert.Equal(t, "fakednstest.example.com", result)
-	}
-
-	{
-		result := fkdns.GetDomainFromFakeDNS(addr2[0])
-		assert.Equal(t, "fakednstest2.example.com", result)
-	}
-}
-
-func TestFakeDnsHolderCreateMappingManySingleDomain(t *testing.T) {
-	fkdns, err := NewFakeDNSHolder()
-	common.Must(err)
-
-	addr := fkdns.GetFakeIPForDomain("fakednstest.example.com")
-	addr2 := fkdns.GetFakeIPForDomain("fakednstest.example.com")
-	assert.Equal(t, addr[0].IP().String(), addr2[0].IP().String())
-}
-
-func TestFakeDnsHolderCreateMappingAndRollOver(t *testing.T) {
-	fkdns, err := NewFakeDNSHolderConfigOnly(&FakeDnsPool{
-		IpPool:  dns.FakeIPPool,
-		LruSize: 256,
-	})
-	common.Must(err)
-
-	err = fkdns.Start()
-
-	common.Must(err)
-
-	addr := fkdns.GetFakeIPForDomain("fakednstest.example.com")
-	addr2 := fkdns.GetFakeIPForDomain("fakednstest2.example.com")
-
-	for i := 0; i <= 8192; i++ {
-		{
-			result := fkdns.GetDomainFromFakeDNS(addr[0])
-			assert.Equal(t, "fakednstest.example.com", result)
-		}
-
-		{
-			result := fkdns.GetDomainFromFakeDNS(addr2[0])
-			assert.Equal(t, "fakednstest2.example.com", result)
-		}
-
-		{
-			uuid := uuid.New()
-			domain := uuid.String() + ".fakednstest.example.com"
-			tempAddr := fkdns.GetFakeIPForDomain(domain)
-			rsaddr := tempAddr[0].IP().String()
-
-			result := fkdns.GetDomainFromFakeDNS(net.ParseAddress(rsaddr))
-			assert.Equal(t, domain, result)
-		}
-	}
-}

app/dns/hosts.go

@@ -5,7 +5,6 @@ import (
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/strmatcher"
 	"github.com/xtls/xray-core/features"
-	"github.com/xtls/xray-core/features/dns"
 )
 
 // StaticHosts represents static domain-ip mapping in DNS server.
@@ -93,7 +92,7 @@ func NewStaticHosts(hosts []*Config_HostMapping, legacy map[string]*net.IPOrDoma
 	return sh, nil
 }
 
-func filterIP(ips []net.Address, option dns.IPOption) []net.Address {
+func filterIP(ips []net.Address, option IPOption) []net.Address {
 	filtered := make([]net.Address, 0, len(ips))
 	for _, ip := range ips {
 		if (ip.Family().IsIPv4() && option.IPv4Enable) || (ip.Family().IsIPv6() && option.IPv6Enable) {
@@ -107,7 +106,7 @@ func filterIP(ips []net.Address, option dns.IPOption) []net.Address {
 }
 
 // LookupIP returns IP address for the given domain, if exists in this StaticHosts.
-func (h *StaticHosts) LookupIP(domain string, option dns.IPOption) []net.Address {
+func (h *StaticHosts) LookupIP(domain string, option IPOption) []net.Address {
 	indices := h.matchers.Match(domain)
 	if len(indices) == 0 {
 		return nil

app/dns/hosts_test.go

@@ -8,7 +8,6 @@ import (
 	. "github.com/xtls/xray-core/app/dns"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/features/dns"
 )
 
 func TestStaticHosts(t *testing.T) {
@@ -40,7 +39,7 @@ func TestStaticHosts(t *testing.T) {
 	common.Must(err)
 
 	{
-		ips := hosts.LookupIP("example.com", dns.IPOption{
+		ips := hosts.LookupIP("example.com", IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 		})
@@ -53,7 +52,7 @@ func TestStaticHosts(t *testing.T) {
 	}
 
 	{
-		ips := hosts.LookupIP("www.example.cn", dns.IPOption{
+		ips := hosts.LookupIP("www.example.cn", IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 		})
@@ -66,7 +65,7 @@ func TestStaticHosts(t *testing.T) {
 	}
 
 	{
-		ips := hosts.LookupIP("baidu.com", dns.IPOption{
+		ips := hosts.LookupIP("baidu.com", IPOption{
 			IPv4Enable: false,
 			IPv6Enable: true,
 		})

app/dns/nameserver.go

@@ -4,26 +4,39 @@ import (
 	"context"
 
 	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/features/dns"
 	"github.com/xtls/xray-core/features/dns/localdns"
 )
 
+// IPOption is an object for IP query options.
+type IPOption struct {
+	IPv4Enable bool
+	IPv6Enable bool
+}
+
 // Client is the interface for DNS client.
 type Client interface {
 	// Name of the Client.
 	Name() string
 
 	// QueryIP sends IP queries to its configured server.
-	QueryIP(ctx context.Context, domain string, option dns.IPOption) ([]net.IP, error)
+	QueryIP(ctx context.Context, domain string, option IPOption) ([]net.IP, error)
 }
 
 type LocalNameServer struct {
 	client *localdns.Client
 }
 
-func (s *LocalNameServer) QueryIP(_ context.Context, domain string, option dns.IPOption) ([]net.IP, error) {
-	if option.IPv4Enable || option.IPv6Enable {
-		return s.client.LookupIP(domain, option)
+func (s *LocalNameServer) QueryIP(ctx context.Context, domain string, option IPOption) ([]net.IP, error) {
+	if option.IPv4Enable && option.IPv6Enable {
+		return s.client.LookupIP(domain)
+	}
+
+	if option.IPv4Enable {
+		return s.client.LookupIPv4(domain)
+	}
+
+	if option.IPv6Enable {
+		return s.client.LookupIPv6(domain)
 	}
 
 	return nil, newError("neither IPv4 nor IPv6 is enabled")

app/dns/nameserver_fakedns.go

@@ -1,41 +0,0 @@
-package dns
-
-import (
-	"context"
-
-	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/core"
-	"github.com/xtls/xray-core/features/dns"
-)
-
-type FakeDNSServer struct {
-	fakeDNSEngine dns.FakeDNSEngine
-}
-
-func NewFakeDNSServer() *FakeDNSServer {
-	return &FakeDNSServer{}
-}
-
-func (FakeDNSServer) Name() string {
-	return "FakeDNS"
-}
-
-func (f *FakeDNSServer) QueryIP(ctx context.Context, domain string, _ dns.IPOption) ([]net.IP, error) {
-	if f.fakeDNSEngine == nil {
-		if err := core.RequireFeatures(ctx, func(fd dns.FakeDNSEngine) {
-			f.fakeDNSEngine = fd
-		}); err != nil {
-			return nil, newError("Unable to locate a fake DNS Engine").Base(err).AtError()
-		}
-	}
-	ips := f.fakeDNSEngine.GetFakeIPForDomain(domain)
-
-	netIP := toNetIP(ips)
-	if netIP == nil {
-		return nil, newError("Unable to convert IP to net ip").AtError()
-	}
-
-	newError(f.Name(), " got answer: ", domain, " -> ", ips).AtInfo().WriteToLog()
-
-	return netIP, nil
-}

app/dns/nameserver_test.go

@@ -7,16 +7,14 @@ import (
 
 	. "github.com/xtls/xray-core/app/dns"
 	"github.com/xtls/xray-core/common"
-	dns_feature "github.com/xtls/xray-core/features/dns"
 )
 
 func TestLocalNameServer(t *testing.T) {
 	s := NewLocalNameServer()
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
-	ips, err := s.QueryIP(ctx, "google.com", dns_feature.IPOption{
+	ips, err := s.QueryIP(ctx, "google.com", IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
-		FakeEnable: false,
 	})
 	cancel()
 	common.Must(err)

app/dns/server.go

@@ -30,7 +30,6 @@ type Server struct {
 	hosts         *StaticHosts
 	clientIP      net.IP
 	clients       []Client             // clientIdx -> Client
-	ctx           context.Context
 	ipIndexMap    []*MultiGeoIPMatcher // clientIdx -> *MultiGeoIPMatcher
 	domainRules   [][]string           // clientIdx -> domainRuleIdx -> DomainRule
 	domainMatcher strmatcher.IndexMatcher
@@ -75,7 +74,6 @@ func generateRandomTag() string {
 func New(ctx context.Context, config *Config) (*Server, error) {
 	server := &Server{
 		clients: make([]Client, 0, len(config.NameServers)+len(config.NameServer)),
-		ctx:     ctx,
 		tag:     config.Tag,
 	}
 	if server.tag == "" {
@@ -145,9 +143,6 @@ func New(ctx context.Context, config *Config) (*Server, error) {
 				server.clients[idx] = c
 			}))
 
-		case address.Family().IsDomain() && address.Domain() == "fakedns":
-			server.clients = append(server.clients, NewFakeDNSServer())
-
 		default:
 			// UDP classic DNS mode
 			dest := endpoint.AsDestination()
@@ -299,14 +294,13 @@ func (s *Server) Match(idx int, client Client, domain string, ips []net.IP) ([]n
 	return newIps, nil
 }
 
-func (s *Server) queryIPTimeout(idx int, client Client, domain string, option dns.IPOption) ([]net.IP, error) {
-	ctx, cancel := context.WithTimeout(s.ctx, time.Second*4)
+func (s *Server) queryIPTimeout(idx int, client Client, domain string, option IPOption) ([]net.IP, error) {
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second*4)
 	if len(s.tag) > 0 {
 		ctx = session.ContextWithInbound(ctx, &session.Inbound{
 			Tag: s.tag,
 		})
 	}
-
 	ips, err := client.QueryIP(ctx, domain, option)
 	cancel()
 
@@ -318,7 +312,31 @@ func (s *Server) queryIPTimeout(idx int, client Client, domain string, option dn
 	return ips, err
 }
 
-func (s *Server) lookupStatic(domain string, option dns.IPOption, depth int32) []net.Address {
+// LookupIP implements dns.Client.
+func (s *Server) LookupIP(domain string) ([]net.IP, error) {
+	return s.lookupIPInternal(domain, IPOption{
+		IPv4Enable: true,
+		IPv6Enable: true,
+	})
+}
+
+// LookupIPv4 implements dns.IPv4Lookup.
+func (s *Server) LookupIPv4(domain string) ([]net.IP, error) {
+	return s.lookupIPInternal(domain, IPOption{
+		IPv4Enable: true,
+		IPv6Enable: false,
+	})
+}
+
+// LookupIPv6 implements dns.IPv6Lookup.
+func (s *Server) LookupIPv6(domain string) ([]net.IP, error) {
+	return s.lookupIPInternal(domain, IPOption{
+		IPv4Enable: false,
+		IPv6Enable: true,
+	})
+}
+
+func (s *Server) lookupStatic(domain string, option IPOption, depth int32) []net.Address {
 	ips := s.hosts.LookupIP(domain, option)
 	if ips == nil {
 		return nil
@@ -342,14 +360,14 @@ func toNetIP(ips []net.Address) []net.IP {
 	return netips
 }
 
-// LookupIP implements dns.Client.
-func (s *Server) LookupIP(domain string, option dns.IPOption) ([]net.IP, error) {
+func (s *Server) lookupIPInternal(domain string, option IPOption) ([]net.IP, error) {
 	if domain == "" {
 		return nil, newError("empty domain name")
 	}
+	domain = strings.ToLower(domain)
 
 	// normalize the FQDN form query
-	if strings.HasSuffix(domain, ".") {
+	if domain[len(domain)-1] == '.' {
 		domain = domain[:len(domain)-1]
 	}
 
@@ -386,10 +404,6 @@ func (s *Server) LookupIP(domain string, option dns.IPOption) ([]net.IP, error)
 		for _, idx := range indices {
 			clientIdx := int(s.matcherInfos[idx].clientIdx)
 			matchedClient = s.clients[clientIdx]
-			if !option.FakeEnable && strings.EqualFold(matchedClient.Name(), "FakeDNS") {
-				newError("skip DNS resolution for domain ", domain, " at server ", matchedClient.Name()).AtDebug().WriteToLog()
-				continue
-			}
 			ips, err := s.queryIPTimeout(clientIdx, matchedClient, domain, option)
 			if len(ips) > 0 {
 				return ips, nil
@@ -409,10 +423,7 @@ func (s *Server) LookupIP(domain string, option dns.IPOption) ([]net.IP, error)
 			newError("domain ", domain, " at server ", client.Name(), " idx:", idx, " already lookup failed, just ignore").AtDebug().WriteToLog()
 			continue
 		}
-		if !option.FakeEnable && strings.EqualFold(client.Name(), "FakeDNS") {
-			newError("skip DNS resolution for domain ", domain, " at server ", client.Name()).AtDebug().WriteToLog()
-			continue
-		}
+
 		ips, err := s.queryIPTimeout(idx, client, domain, option)
 		if len(ips) > 0 {
 			return ips, nil

app/dns/server_test.go

@@ -101,8 +101,8 @@ func (*staticHandler) ServeDNS(w dns.ResponseWriter, r *dns.Msg) {
 			rr, _ := dns.NewRR("localhost-b. IN A 127.0.0.4")
 			ans.Answer = append(ans.Answer, rr)
 
-		case q.Name == "Mijia\\ Cloud." && q.Qtype == dns.TypeA:
-			rr, _ := dns.NewRR("Mijia\\ Cloud. IN A 127.0.0.1")
+		case q.Name == "mijia\\ cloud." && q.Qtype == dns.TypeA:
+			rr, _ := dns.NewRR("mijia\\ cloud. IN A 127.0.0.1")
 			ans.Answer = append(ans.Answer, rr)
 		}
 	}
@@ -154,11 +154,7 @@ func TestUDPServerSubnet(t *testing.T) {
 
 	client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)
 
-	ips, err := client.LookupIP("google.com", feature_dns.IPOption{
-		IPv4Enable: true,
-		IPv6Enable: true,
-		FakeEnable: false,
-	})
+	ips, err := client.LookupIP("google.com")
 	if err != nil {
 		t.Fatal("unexpected error: ", err)
 	}
@@ -213,11 +209,7 @@ func TestUDPServer(t *testing.T) {
 	client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)
 
 	{
-		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("google.com")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -228,11 +220,7 @@ func TestUDPServer(t *testing.T) {
 	}
 
 	{
-		ips, err := client.LookupIP("facebook.com", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("facebook.com")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -243,11 +231,7 @@ func TestUDPServer(t *testing.T) {
 	}
 
 	{
-		_, err := client.LookupIP("notexist.google.com", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		_, err := client.LookupIP("notexist.google.com")
 		if err == nil {
 			t.Fatal("nil error")
 		}
@@ -257,11 +241,8 @@ func TestUDPServer(t *testing.T) {
 	}
 
 	{
-		ips, err := client.LookupIP("ipv4only.google.com", feature_dns.IPOption{
-			IPv4Enable: false,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		clientv6 := client.(feature_dns.IPv6Lookup)
+		ips, err := clientv6.LookupIPv6("ipv4only.google.com")
 		if err != feature_dns.ErrEmptyResponse {
 			t.Fatal("error: ", err)
 		}
@@ -273,11 +254,7 @@ func TestUDPServer(t *testing.T) {
 	dnsServer.Shutdown()
 
 	{
-		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("google.com")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -354,11 +331,7 @@ func TestPrioritizedDomain(t *testing.T) {
 	startTime := time.Now()
 
 	{
-		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("google.com")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -417,12 +390,10 @@ func TestUDPServerIPv6(t *testing.T) {
 	common.Must(err)
 
 	client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)
+	client6 := client.(feature_dns.IPv6Lookup)
+
 	{
-		ips, err := client.LookupIP("ipv6.google.com", feature_dns.IPOption{
-			IPv4Enable: false,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client6.LookupIPv6("ipv6.google.com")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -485,11 +456,7 @@ func TestStaticHostDomain(t *testing.T) {
 	client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)
 
 	{
-		ips, err := client.LookupIP("example.com", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("example.com")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -596,11 +563,7 @@ func TestIPMatch(t *testing.T) {
 	startTime := time.Now()
 
 	{
-		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("google.com")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -719,11 +682,7 @@ func TestLocalDomain(t *testing.T) {
 	startTime := time.Now()
 
 	{ // Will match dotless:
-		ips, err := client.LookupIP("hostname", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("hostname")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -734,11 +693,7 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match domain:local
-		ips, err := client.LookupIP("hostname.local", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("hostname.local")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -749,11 +704,7 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match static ip
-		ips, err := client.LookupIP("hostnamestatic", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("hostnamestatic")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -764,11 +715,7 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match domain replacing
-		ips, err := client.LookupIP("hostnamealias", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("hostnamealias")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -779,11 +726,7 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match dotless:localhost, but not expectIPs: 127.0.0.2, 127.0.0.3, then matches at dotless:
-		ips, err := client.LookupIP("localhost", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("localhost")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -794,11 +737,7 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match dotless:localhost, and expectIPs: 127.0.0.2, 127.0.0.3
-		ips, err := client.LookupIP("localhost-a", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("localhost-a")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -809,11 +748,7 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match dotless:localhost, and expectIPs: 127.0.0.2, 127.0.0.3
-		ips, err := client.LookupIP("localhost-b", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("localhost-b")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -824,11 +759,7 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match dotless:
-		ips, err := client.LookupIP("Mijia Cloud", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("Mijia Cloud")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -990,11 +921,7 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 	startTime := time.Now()
 
 	{ // Will match server 1,2 and server 1 returns expected ip
-		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("google.com")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -1005,11 +932,8 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 	}
 
 	{ // Will match server 1,2 and server 1 returns unexpected ip, then server 2 returns expected one
-		ips, err := client.LookupIP("ipv6.google.com", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: false,
-			FakeEnable: false,
-		})
+		clientv4 := client.(feature_dns.IPv4Lookup)
+		ips, err := clientv4.LookupIPv4("ipv6.google.com")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -1020,11 +944,7 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 	}
 
 	{ // Will match server 3,1,2 and server 3 returns expected one
-		ips, err := client.LookupIP("api.google.com", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("api.google.com")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -1035,11 +955,7 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 	}
 
 	{ // Will match server 4,3,1,2 and server 4 returns expected one
-		ips, err := client.LookupIP("v2.api.google.com", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("v2.api.google.com")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}

app/dns/udpns.go

@@ -7,10 +7,7 @@ import (
 	"sync/atomic"
 	"time"
 
-	"golang.org/x/net/dns/dnsmessage"
-
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/log"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/protocol/dns"
 	udp_proto "github.com/xtls/xray-core/common/protocol/udp"
@@ -20,6 +17,7 @@ import (
 	dns_feature "github.com/xtls/xray-core/features/dns"
 	"github.com/xtls/xray-core/features/routing"
 	"github.com/xtls/xray-core/transport/internet/udp"
+	"golang.org/x/net/dns/dnsmessage"
 )
 
 type ClassicNameServer struct {
@@ -54,7 +52,7 @@ func NewClassicNameServer(address net.Destination, dispatcher routing.Dispatcher
 		Execute:  s.Cleanup,
 	}
 	s.udpServer = udp.NewDispatcher(dispatcher, s.HandleResponse)
-	newError("DNS: created UDP client initialized for ", address.NetAddr()).AtInfo().WriteToLog()
+	newError("DNS: created udp client inited for ", address.NetAddr()).AtInfo().WriteToLog()
 	return s
 }
 
@@ -180,7 +178,7 @@ func (s *ClassicNameServer) addPendingRequest(req *dnsRequest) {
 	s.requests[id] = *req
 }
 
-func (s *ClassicNameServer) sendQuery(ctx context.Context, domain string, option dns_feature.IPOption) {
+func (s *ClassicNameServer) sendQuery(ctx context.Context, domain string, option IPOption) {
 	newError(s.name, " querying DNS for: ", domain).AtDebug().WriteToLog(session.ExportIDToError(ctx))
 
 	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(s.clientIP))
@@ -192,21 +190,14 @@ func (s *ClassicNameServer) sendQuery(ctx context.Context, domain string, option
 		if inbound := session.InboundFromContext(ctx); inbound != nil {
 			udpCtx = session.ContextWithInbound(udpCtx, inbound)
 		}
-
 		udpCtx = session.ContextWithContent(udpCtx, &session.Content{
 			Protocol: "dns",
 		})
-		udpCtx = log.ContextWithAccessMessage(udpCtx, &log.AccessMessage{
-			From:   "DNS",
-			To:     s.address,
-			Status: log.AccessAccepted,
-			Reason: "",
-		})
 		s.udpServer.Dispatch(udpCtx, s.address, b)
 	}
 }
 
-func (s *ClassicNameServer) findIPsForDomain(domain string, option dns_feature.IPOption) ([]net.IP, error) {
+func (s *ClassicNameServer) findIPsForDomain(domain string, option IPOption) ([]net.IP, error) {
 	s.RLock()
 	record, found := s.ips[domain]
 	s.RUnlock()
@@ -244,14 +235,12 @@ func (s *ClassicNameServer) findIPsForDomain(domain string, option dns_feature.I
 	return nil, dns_feature.ErrEmptyResponse
 }
 
-// QueryIP implements Server.
-func (s *ClassicNameServer) QueryIP(ctx context.Context, domain string, option dns_feature.IPOption) ([]net.IP, error) {
+func (s *ClassicNameServer) QueryIP(ctx context.Context, domain string, option IPOption) ([]net.IP, error) {
 	fqdn := Fqdn(domain)
 
 	ips, err := s.findIPsForDomain(fqdn, option)
 	if err != errRecordNotFound {
 		newError(s.name, " cache HIT ", domain, " -> ", ips).Base(err).AtDebug().WriteToLog()
-		log.Record(&log.DNSLog{s.name, domain, ips, log.DNSCacheHit, 0, err})
 		return ips, err
 	}
 
@@ -282,12 +271,10 @@ func (s *ClassicNameServer) QueryIP(ctx context.Context, domain string, option d
 		close(done)
 	}()
 	s.sendQuery(ctx, fqdn, option)
-	start := time.Now()
 
 	for {
 		ips, err := s.findIPsForDomain(fqdn, option)
 		if err != errRecordNotFound {
-			log.Record(&log.DNSLog{s.name, domain, ips, log.DNSQueried, time.Since(start), err})
 			return ips, err
 		}
 

app/log/command/config.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
-// 	protoc        v3.18.0
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.14.0
 // source: app/log/command/config.proto
 
 package command
 
 import (
+	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -20,6 +21,10 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

app/log/config.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
-// 	protoc        v3.18.0
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.14.0
 // source: app/log/config.proto
 
 package log
 
 import (
+	proto "github.com/golang/protobuf/proto"
 	log "github.com/xtls/xray-core/common/log"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -21,6 +22,10 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
 type LogType int32
 
 const (
@@ -83,7 +88,6 @@ type Config struct {
 	ErrorLogPath  string       `protobuf:"bytes,3,opt,name=error_log_path,json=errorLogPath,proto3" json:"error_log_path,omitempty"`
 	AccessLogType LogType      `protobuf:"varint,4,opt,name=access_log_type,json=accessLogType,proto3,enum=xray.app.log.LogType" json:"access_log_type,omitempty"`
 	AccessLogPath string       `protobuf:"bytes,5,opt,name=access_log_path,json=accessLogPath,proto3" json:"access_log_path,omitempty"`
-	EnableDnsLog  bool         `protobuf:"varint,6,opt,name=enable_dns_log,json=enableDnsLog,proto3" json:"enable_dns_log,omitempty"`
 }
 
 func (x *Config) Reset() {
@@ -129,7 +133,7 @@ func (x *Config) GetErrorLogLevel() log.Severity {
 	if x != nil {
 		return x.ErrorLogLevel
 	}
-	return log.Severity(0)
+	return log.Severity_Unknown
 }
 
 func (x *Config) GetErrorLogPath() string {
@@ -153,20 +157,13 @@ func (x *Config) GetAccessLogPath() string {
 	return ""
 }
 
-func (x *Config) GetEnableDnsLog() bool {
-	if x != nil {
-		return x.EnableDnsLog
-	}
-	return false
-}
-
 var File_app_log_config_proto protoreflect.FileDescriptor
 
 var file_app_log_config_proto_rawDesc = []byte{
 	0x0a, 0x14, 0x61, 0x70, 0x70, 0x2f, 0x6c, 0x6f, 0x67, 0x2f, 0x63, 0x6f, 0x6e, 0x66, 0x69, 0x67,
 	0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x0c, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70,
 	0x2e, 0x6c, 0x6f, 0x67, 0x1a, 0x14, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2f, 0x6c, 0x6f, 0x67,
-	0x2f, 0x6c, 0x6f, 0x67, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0xbb, 0x02, 0x0a, 0x06, 0x43,
+	0x2f, 0x6c, 0x6f, 0x67, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0x95, 0x02, 0x0a, 0x06, 0x43,
 	0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x3b, 0x0a, 0x0e, 0x65, 0x72, 0x72, 0x6f, 0x72, 0x5f, 0x6c,
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@@ -184,17 +181,15 @@ var file_app_log_config_proto_rawDesc = []byte{
 	0x65, 0x73, 0x73, 0x4c, 0x6f, 0x67, 0x54, 0x79, 0x70, 0x65, 0x12, 0x26, 0x0a, 0x0f, 0x61, 0x63,
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+	0x67, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (

app/log/config.proto

@@ -22,5 +22,4 @@ message Config {
 
   LogType access_log_type = 4;
   string access_log_path = 5;
-  bool enable_dns_log = 6;
 }

app/log/log.go

@@ -17,7 +17,6 @@ type Instance struct {
 	accessLogger log.Handler
 	errorLogger  log.Handler
 	active       bool
-	dns          bool
 }
 
 // New creates a new log.Instance based on the given config.
@@ -25,7 +24,6 @@ func New(ctx context.Context, config *Config) (*Instance, error) {
 	g := &Instance{
 		config: config,
 		active: false,
-		dns:    config.EnableDnsLog,
 	}
 	log.RegisterHandler(g)
 
@@ -105,10 +103,6 @@ func (g *Instance) Handle(msg log.Message) {
 		if g.accessLogger != nil {
 			g.accessLogger.Handle(msg)
 		}
-	case *log.DNSLog:
-		if g.dns && g.accessLogger != nil {
-			g.accessLogger.Handle(msg)
-		}
 	case *log.GeneralMessage:
 		if g.errorLogger != nil && msg.Severity <= g.config.ErrorLogLevel {
 			g.errorLogger.Handle(msg)

app/log/log_test.go

@@ -5,7 +5,6 @@ import (
 	"testing"
 
 	"github.com/golang/mock/gomock"
-
 	"github.com/xtls/xray-core/app/log"
 	"github.com/xtls/xray-core/common"
 	clog "github.com/xtls/xray-core/common/log"

app/policy/config.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
-// 	protoc        v3.18.0
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.14.0
 // source: app/policy/config.proto
 
 package policy
 
 import (
+	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -20,6 +21,10 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
 type Second struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

app/proxyman/command/command.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
-// 	protoc        v3.18.0
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.14.0
 // source: app/proxyman/command/command.proto
 
 package command
 
 import (
+	proto "github.com/golang/protobuf/proto"
 	protocol "github.com/xtls/xray-core/common/protocol"
 	serial "github.com/xtls/xray-core/common/serial"
 	core "github.com/xtls/xray-core/core"
@@ -23,6 +24,10 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
 type AddUserOperation struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

app/proxyman/config.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
-// 	protoc        v3.18.0
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.14.0
 // source: app/proxyman/config.proto
 
 package proxyman
 
 import (
+	proto "github.com/golang/protobuf/proto"
 	net "github.com/xtls/xray-core/common/net"
 	serial "github.com/xtls/xray-core/common/serial"
 	internet "github.com/xtls/xray-core/transport/internet"
@@ -23,6 +24,10 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
 type KnownProtocols int32
 
 const (
@@ -234,12 +239,9 @@ type SniffingConfig struct {
 	// Whether or not to enable content sniffing on an inbound connection.
 	Enabled bool `protobuf:"varint,1,opt,name=enabled,proto3" json:"enabled,omitempty"`
 	// Override target destination if sniff'ed protocol is in the given list.
-	// Supported values are "http", "tls", "fakedns".
+	// Supported values are "http", "tls".
 	DestinationOverride []string `protobuf:"bytes,2,rep,name=destination_override,json=destinationOverride,proto3" json:"destination_override,omitempty"`
 	DomainsExcluded     []string `protobuf:"bytes,3,rep,name=domains_excluded,json=domainsExcluded,proto3" json:"domains_excluded,omitempty"`
-	// Whether should only try to sniff metadata without waiting for client input.
-	// Can be used to support SMTP like protocol where server send the first message.
-	MetadataOnly bool `protobuf:"varint,4,opt,name=metadata_only,json=metadataOnly,proto3" json:"metadata_only,omitempty"`
 }
 
 func (x *SniffingConfig) Reset() {
@@ -295,13 +297,6 @@ func (x *SniffingConfig) GetDomainsExcluded() []string {
 	return nil
 }
 
-func (x *SniffingConfig) GetMetadataOnly() bool {
-	if x != nil {
-		return x.MetadataOnly
-	}
-	return false
-}
-
 type ReceiverConfig struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -769,7 +764,7 @@ var file_app_proxyman_config_proto_rawDesc = []byte{
 	0x52, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x22, 0x2c, 0x0a, 0x04, 0x54, 0x79, 0x70, 0x65, 0x12,
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 	0x6e, 0x67, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x18, 0x0a, 0x07, 0x65, 0x6e, 0x61, 0x62,
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@@ -778,88 +773,86 @@ var file_app_proxyman_config_proto_rawDesc = []byte{
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+	0x78, 0x79, 0x6d, 0x61, 0x6e, 0xaa, 0x02, 0x11, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70,
+	0x2e, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f,
+	0x33,
 }
 
 var (

app/proxyman/config.proto

@@ -54,13 +54,9 @@ message SniffingConfig {
   bool enabled = 1;
 
   // Override target destination if sniff'ed protocol is in the given list.
-  // Supported values are "http", "tls", "fakedns".
+  // Supported values are "http", "tls".
   repeated string destination_override = 2;
   repeated string domains_excluded = 3;
-  
-  // Whether should only try to sniff metadata without waiting for client input.
-  // Can be used to support SMTP like protocol where server send the first message.
-  bool metadata_only = 4;
 }
 
 message ReceiverConfig {

app/proxyman/inbound/always.go

@@ -133,7 +133,6 @@ func NewAlwaysOnInboundHandler(ctx context.Context, tag string, receiverConfig *
 					address:         address,
 					port:            net.Port(port),
 					dispatcher:      h.mux,
-					sniffingConfig:  receiverConfig.GetEffectiveSniffingSettings(),
 					uplinkCounter:   uplinkCounter,
 					downlinkCounter: downlinkCounter,
 					stream:          mss,

app/proxyman/inbound/dynamic.go

@@ -153,7 +153,6 @@ func (h *DynamicInboundHandler) refresh() error {
 				address:         address,
 				port:            port,
 				dispatcher:      h.mux,
-				sniffingConfig:  h.receiverConfig.GetEffectiveSniffingSettings(),
 				uplinkCounter:   uplinkCounter,
 				downlinkCounter: downlinkCounter,
 				stream:          h.streamSettings,

app/proxyman/inbound/worker.go

@@ -6,8 +6,6 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/xtls/xray-core/transport/internet/stat"
-
 	"github.com/xtls/xray-core/app/proxyman"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
@@ -56,7 +54,7 @@ func getTProxyType(s *internet.MemoryStreamConfig) internet.SocketConfig_TProxyM
 	return s.SocketSettings.Tproxy
 }
 
-func (w *tcpWorker) callback(conn stat.Connection) {
+func (w *tcpWorker) callback(conn internet.Connection) {
 	ctx, cancel := context.WithCancel(w.ctx)
 	sid := session.NewID()
 	ctx = session.ContextWithID(ctx, sid)
@@ -82,7 +80,7 @@ func (w *tcpWorker) callback(conn stat.Connection) {
 	}
 
 	if w.uplinkCounter != nil || w.downlinkCounter != nil {
-		conn = &stat.CounterConnection{
+		conn = &internet.StatCouterConnection{
 			Connection:   conn,
 			ReadCounter:  w.uplinkCounter,
 			WriteCounter: w.downlinkCounter,
@@ -100,7 +98,6 @@ func (w *tcpWorker) callback(conn stat.Connection) {
 		content.SniffingRequest.Enabled = w.sniffingConfig.Enabled
 		content.SniffingRequest.OverrideDestinationForProtocol = w.sniffingConfig.DestinationOverride
 		content.SniffingRequest.ExcludeForDomain = w.sniffingConfig.DomainsExcluded
-		content.SniffingRequest.MetadataOnly = w.sniffingConfig.MetadataOnly
 	}
 	ctx = session.ContextWithContent(ctx, content)
 
@@ -119,7 +116,7 @@ func (w *tcpWorker) Proxy() proxy.Inbound {
 
 func (w *tcpWorker) Start() error {
 	ctx := context.Background()
-	hub, err := internet.ListenTCP(ctx, w.address, w.port, w.stream, func(conn stat.Connection) {
+	hub, err := internet.ListenTCP(ctx, w.address, w.port, w.stream, func(conn internet.Connection) {
 		go w.callback(conn)
 	})
 	if err != nil {
@@ -238,7 +235,6 @@ type udpWorker struct {
 	tag             string
 	stream          *internet.MemoryStreamConfig
 	dispatcher      routing.Dispatcher
-	sniffingConfig  *proxyman.SniffingConfig
 	uplinkCounter   stats.Counter
 	downlinkCounter stats.Counter
 
@@ -301,7 +297,7 @@ func (w *udpWorker) callback(b *buf.Buffer, source net.Destination, originalDest
 		common.Must(w.checker.Start())
 
 		go func() {
-			ctx := w.ctx
+			ctx := context.Background()
 			sid := session.NewID()
 			ctx = session.ContextWithID(ctx, sid)
 
@@ -315,13 +311,6 @@ func (w *udpWorker) callback(b *buf.Buffer, source net.Destination, originalDest
 				Gateway: net.UDPDestination(w.address, w.port),
 				Tag:     w.tag,
 			})
-			content := new(session.Content)
-			if w.sniffingConfig != nil {
-				content.SniffingRequest.Enabled = w.sniffingConfig.Enabled
-				content.SniffingRequest.OverrideDestinationForProtocol = w.sniffingConfig.DestinationOverride
-				content.SniffingRequest.MetadataOnly = w.sniffingConfig.MetadataOnly
-			}
-			ctx = session.ContextWithContent(ctx, content)
 			if err := w.proxy.Process(ctx, net.Network_UDP, conn, w.dispatcher); err != nil {
 				newError("connection ends").Base(err).WriteToLog(session.ExportIDToError(ctx))
 			}
@@ -438,13 +427,13 @@ type dsWorker struct {
 	ctx context.Context
 }
 
-func (w *dsWorker) callback(conn stat.Connection) {
+func (w *dsWorker) callback(conn internet.Connection) {
 	ctx, cancel := context.WithCancel(w.ctx)
 	sid := session.NewID()
 	ctx = session.ContextWithID(ctx, sid)
 
 	if w.uplinkCounter != nil || w.downlinkCounter != nil {
-		conn = &stat.CounterConnection{
+		conn = &internet.StatCouterConnection{
 			Connection:   conn,
 			ReadCounter:  w.uplinkCounter,
 			WriteCounter: w.downlinkCounter,
@@ -462,7 +451,6 @@ func (w *dsWorker) callback(conn stat.Connection) {
 		content.SniffingRequest.Enabled = w.sniffingConfig.Enabled
 		content.SniffingRequest.OverrideDestinationForProtocol = w.sniffingConfig.DestinationOverride
 		content.SniffingRequest.ExcludeForDomain = w.sniffingConfig.DomainsExcluded
-		content.SniffingRequest.MetadataOnly = w.sniffingConfig.MetadataOnly
 	}
 	ctx = session.ContextWithContent(ctx, content)
 
@@ -484,7 +472,7 @@ func (w *dsWorker) Port() net.Port {
 }
 func (w *dsWorker) Start() error {
 	ctx := context.Background()
-	hub, err := internet.ListenUnix(ctx, w.address, w.stream, func(conn stat.Connection) {
+	hub, err := internet.ListenUnix(ctx, w.address, w.stream, func(conn internet.Connection) {
 		go w.callback(conn)
 	})
 	if err != nil {

app/proxyman/outbound/handler.go

@@ -3,8 +3,6 @@ package outbound
 import (
 	"context"
 
-	"github.com/xtls/xray-core/transport/internet/stat"
-
 	"github.com/xtls/xray-core/app/proxyman"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/mux"
@@ -160,7 +158,7 @@ func (h *Handler) Address() net.Address {
 }
 
 // Dial implements internet.Dialer.
-func (h *Handler) Dial(ctx context.Context, dest net.Destination) (stat.Connection, error) {
+func (h *Handler) Dial(ctx context.Context, dest net.Destination) (internet.Connection, error) {
 	if h.senderSettings != nil {
 		if h.senderSettings.ProxySettings.HasTag() {
 			tag := h.senderSettings.ProxySettings.Tag
@@ -203,9 +201,9 @@ func (h *Handler) Dial(ctx context.Context, dest net.Destination) (stat.Connecti
 	return h.getStatCouterConnection(conn), err
 }
 
-func (h *Handler) getStatCouterConnection(conn stat.Connection) stat.Connection {
+func (h *Handler) getStatCouterConnection(conn internet.Connection) internet.Connection {
 	if h.uplinkCounter != nil || h.downlinkCounter != nil {
-		return &stat.CounterConnection{
+		return &internet.StatCouterConnection{
 			Connection:   conn,
 			ReadCounter:  h.downlinkCounter,
 			WriteCounter: h.uplinkCounter,

app/proxyman/outbound/handler_test.go

@@ -4,8 +4,6 @@ import (
 	"context"
 	"testing"
 
-	"github.com/xtls/xray-core/transport/internet/stat"
-
 	"github.com/xtls/xray-core/app/policy"
 	. "github.com/xtls/xray-core/app/proxyman/outbound"
 	"github.com/xtls/xray-core/app/stats"
@@ -14,6 +12,7 @@ import (
 	core "github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/outbound"
 	"github.com/xtls/xray-core/proxy/freedom"
+	"github.com/xtls/xray-core/transport/internet"
 )
 
 func TestInterfaces(t *testing.T) {
@@ -45,9 +44,9 @@ func TestOutboundWithoutStatCounter(t *testing.T) {
 		ProxySettings: serial.ToTypedMessage(&freedom.Config{}),
 	})
 	conn, _ := h.(*Handler).Dial(ctx, net.TCPDestination(net.DomainAddress("localhost"), 13146))
-	_, ok := conn.(*stat.CounterConnection)
+	_, ok := conn.(*internet.StatCouterConnection)
 	if ok {
-		t.Errorf("Expected conn to not be CounterConnection")
+		t.Errorf("Expected conn to not be StatCouterConnection")
 	}
 }
 
@@ -74,8 +73,8 @@ func TestOutboundWithStatCounter(t *testing.T) {
 		ProxySettings: serial.ToTypedMessage(&freedom.Config{}),
 	})
 	conn, _ := h.(*Handler).Dial(ctx, net.TCPDestination(net.DomainAddress("localhost"), 13146))
-	_, ok := conn.(*stat.CounterConnection)
+	_, ok := conn.(*internet.StatCouterConnection)
 	if !ok {
-		t.Errorf("Expected conn to be CounterConnection")
+		t.Errorf("Expected conn to be StatCouterConnection")
 	}
 }

app/reverse/bridge.go

@@ -5,7 +5,6 @@ import (
 	"time"
 
 	"github.com/golang/protobuf/proto"
-
 	"github.com/xtls/xray-core/common/mux"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/session"

app/reverse/config.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
-// 	protoc        v3.18.0
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.14.0
 // source: app/reverse/config.proto
 
 package reverse
 
 import (
+	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -20,6 +21,10 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
 type Control_State int32
 
 const (

app/reverse/portal.go

@@ -6,7 +6,6 @@ import (
 	"time"
 
 	"github.com/golang/protobuf/proto"
-
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/mux"

app/router/command/command.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
-// 	protoc        v3.18.0
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.14.0
 // source: app/router/command/command.proto
 
 package command
 
 import (
+	proto "github.com/golang/protobuf/proto"
 	net "github.com/xtls/xray-core/common/net"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -21,6 +22,10 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
 // RoutingContext is the context with information relative to routing process.
 // It conforms to the structure of xray.features.routing.Context and
 // xray.features.routing.Route.
@@ -86,7 +91,7 @@ func (x *RoutingContext) GetNetwork() net.Network {
 	if x != nil {
 		return x.Network
 	}
-	return net.Network(0)
+	return net.Network_Unknown
 }
 
 func (x *RoutingContext) GetSourceIPs() [][]byte {

app/router/command/command_test.go

@@ -8,9 +8,6 @@ import (
 	"github.com/golang/mock/gomock"
 	"github.com/google/go-cmp/cmp"
 	"github.com/google/go-cmp/cmp/cmpopts"
-	"google.golang.org/grpc"
-	"google.golang.org/grpc/test/bufconn"
-
 	"github.com/xtls/xray-core/app/router"
 	. "github.com/xtls/xray-core/app/router/command"
 	"github.com/xtls/xray-core/app/stats"
@@ -18,6 +15,8 @@ import (
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/features/routing"
 	"github.com/xtls/xray-core/testing/mocks"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/test/bufconn"
 )
 
 func TestServiceSubscribeRoutingStats(t *testing.T) {

app/router/condition.go

@@ -66,24 +66,6 @@ type DomainMatcher struct {
 	matchers strmatcher.IndexMatcher
 }
 
-func NewMphMatcherGroup(domains []*Domain) (*DomainMatcher, error) {
-	g := strmatcher.NewMphMatcherGroup()
-	for _, d := range domains {
-		matcherType, f := matcherTypeMap[d.Type]
-		if !f {
-			return nil, newError("unsupported domain type", d.Type)
-		}
-		_, err := g.AddPattern(d.Value, matcherType)
-		if err != nil {
-			return nil, err
-		}
-	}
-	g.Build()
-	return &DomainMatcher{
-		matchers: g,
-	}, nil
-}
-
 func NewDomainMatcher(domains []*Domain) (*DomainMatcher, error) {
 	g := new(strmatcher.MatcherGroup)
 	for _, d := range domains {
@@ -100,7 +82,7 @@ func NewDomainMatcher(domains []*Domain) (*DomainMatcher, error) {
 }
 
 func (m *DomainMatcher) ApplyDomain(domain string) bool {
-	return len(m.matchers.Match(strings.ToLower(domain))) > 0
+	return len(m.matchers.Match(domain)) > 0
 }
 
 // Apply implements Condition.
@@ -109,7 +91,7 @@ func (m *DomainMatcher) Apply(ctx routing.Context) bool {
 	if len(domain) == 0 {
 		return false
 	}
-	return m.ApplyDomain(domain)
+	return m.ApplyDomain(strings.ToLower(domain))
 }
 
 type MultiGeoIPMatcher struct {

app/router/condition_geoip_test.go

@@ -6,7 +6,6 @@ import (
 	"testing"
 
 	"github.com/golang/protobuf/proto"
-
 	"github.com/xtls/xray-core/app/router"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/net"

app/router/condition_test.go

@@ -359,9 +359,6 @@ func TestChinaSites(t *testing.T) {
 	matcher, err := NewDomainMatcher(domains)
 	common.Must(err)
 
-	acMatcher, err := NewMphMatcherGroup(domains)
-	common.Must(err)
-
 	type TestCase struct {
 		Domain string
 		Output bool
@@ -390,96 +387,9 @@ func TestChinaSites(t *testing.T) {
 	}
 
 	for _, testCase := range testCases {
-		r1 := matcher.ApplyDomain(testCase.Domain)
-		r2 := acMatcher.ApplyDomain(testCase.Domain)
-		if r1 != testCase.Output {
-			t.Error("DomainMatcher expected output ", testCase.Output, " for domain ", testCase.Domain, " but got ", r1)
-		} else if r2 != testCase.Output {
-			t.Error("ACDomainMatcher expected output ", testCase.Output, " for domain ", testCase.Domain, " but got ", r2)
-		}
-	}
-}
-
-func BenchmarkMphDomainMatcher(b *testing.B) {
-	domains, err := loadGeoSite("CN")
-	common.Must(err)
-
-	matcher, err := NewMphMatcherGroup(domains)
-	common.Must(err)
-
-	type TestCase struct {
-		Domain string
-		Output bool
-	}
-	testCases := []TestCase{
-		{
-			Domain: "163.com",
-			Output: true,
-		},
-		{
-			Domain: "163.com",
-			Output: true,
-		},
-		{
-			Domain: "164.com",
-			Output: false,
-		},
-		{
-			Domain: "164.com",
-			Output: false,
-		},
-	}
-
-	for i := 0; i < 1024; i++ {
-		testCases = append(testCases, TestCase{Domain: strconv.Itoa(i) + ".not-exists.com", Output: false})
-	}
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		for _, testCase := range testCases {
-			_ = matcher.ApplyDomain(testCase.Domain)
-		}
-	}
-}
-
-func BenchmarkDomainMatcher(b *testing.B) {
-	domains, err := loadGeoSite("CN")
-	common.Must(err)
-
-	matcher, err := NewDomainMatcher(domains)
-	common.Must(err)
-
-	type TestCase struct {
-		Domain string
-		Output bool
-	}
-	testCases := []TestCase{
-		{
-			Domain: "163.com",
-			Output: true,
-		},
-		{
-			Domain: "163.com",
-			Output: true,
-		},
-		{
-			Domain: "164.com",
-			Output: false,
-		},
-		{
-			Domain: "164.com",
-			Output: false,
-		},
-	}
-
-	for i := 0; i < 1024; i++ {
-		testCases = append(testCases, TestCase{Domain: strconv.Itoa(i) + ".not-exists.com", Output: false})
-	}
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		for _, testCase := range testCases {
-			_ = matcher.ApplyDomain(testCase.Domain)
+		r := matcher.ApplyDomain(testCase.Domain)
+		if r != testCase.Output {
+			t.Error("expected output ", testCase.Output, " for domain ", testCase.Domain, " but got ", r)
 		}
 	}
 }

app/router/config.go

@@ -67,24 +67,11 @@ func (rr *RoutingRule) BuildCondition() (Condition, error) {
 	conds := NewConditionChan()
 
 	if len(rr.Domain) > 0 {
-		switch rr.DomainMatcher {
-		case "linear":
 		matcher, err := NewDomainMatcher(rr.Domain)
 		if err != nil {
 			return nil, newError("failed to build domain condition").Base(err)
 		}
 		conds.Add(matcher)
-		case "mph", "hybrid":
-			fallthrough
-		default:
-			matcher, err := NewMphMatcherGroup(rr.Domain)
-			if err != nil {
-				return nil, newError("failed to build domain condition with MphDomainMatcher").Base(err)
-			}
-			newError("MphDomainMatcher is enabled for ", len(rr.Domain), " domain rule(s)").AtDebug().WriteToLog()
-			conds.Add(matcher)
-		}
-
 	}
 
 	if len(rr.UserEmail) > 0 {

app/router/config.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
-// 	protoc        v3.18.0
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.14.0
 // source: app/router/config.proto
 
 package router
 
 import (
+	proto "github.com/golang/protobuf/proto"
 	net "github.com/xtls/xray-core/common/net"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -21,6 +22,10 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
 // Type of domain value.
 type Domain_Type int32
 
@@ -510,7 +515,6 @@ type RoutingRule struct {
 	InboundTag     []string      `protobuf:"bytes,8,rep,name=inbound_tag,json=inboundTag,proto3" json:"inbound_tag,omitempty"`
 	Protocol       []string      `protobuf:"bytes,9,rep,name=protocol,proto3" json:"protocol,omitempty"`
 	Attributes     string        `protobuf:"bytes,15,opt,name=attributes,proto3" json:"attributes,omitempty"`
-	DomainMatcher  string        `protobuf:"bytes,17,opt,name=domain_matcher,json=domainMatcher,proto3" json:"domain_matcher,omitempty"`
 }
 
 func (x *RoutingRule) Reset() {
@@ -668,13 +672,6 @@ func (x *RoutingRule) GetAttributes() string {
 	return ""
 }
 
-func (x *RoutingRule) GetDomainMatcher() string {
-	if x != nil {
-		return x.DomainMatcher
-	}
-	return ""
-}
-
 type isRoutingRule_TargetTag interface {
 	isRoutingRule_TargetTag()
 }
@@ -949,7 +946,7 @@ var file_app_router_config_proto_rawDesc = []byte{
 	0x74, 0x12, 0x2e, 0x0a, 0x05, 0x65, 0x6e, 0x74, 0x72, 0x79, 0x18, 0x01, 0x20, 0x03, 0x28, 0x0b,
 	0x32, 0x18, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x72, 0x6f, 0x75, 0x74,
 	0x65, 0x72, 0x2e, 0x47, 0x65, 0x6f, 0x53, 0x69, 0x74, 0x65, 0x52, 0x05, 0x65, 0x6e, 0x74, 0x72,
-	0x79, 0x22, 0xb5, 0x06, 0x0a, 0x0b, 0x52, 0x6f, 0x75, 0x74, 0x69, 0x6e, 0x67, 0x52, 0x75, 0x6c,
+	0x79, 0x22, 0x8e, 0x06, 0x0a, 0x0b, 0x52, 0x6f, 0x75, 0x74, 0x69, 0x6e, 0x67, 0x52, 0x75, 0x6c,
 	0x65, 0x12, 0x12, 0x0a, 0x03, 0x74, 0x61, 0x67, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x48, 0x00,
 	0x52, 0x03, 0x74, 0x61, 0x67, 0x12, 0x25, 0x0a, 0x0d, 0x62, 0x61, 0x6c, 0x61, 0x6e, 0x63, 0x69,
 	0x6e, 0x67, 0x5f, 0x74, 0x61, 0x67, 0x18, 0x0c, 0x20, 0x01, 0x28, 0x09, 0x48, 0x00, 0x52, 0x0c,
@@ -997,38 +994,36 @@ var file_app_router_config_proto_rawDesc = []byte{
 	0x6f, 0x63, 0x6f, 0x6c, 0x18, 0x09, 0x20, 0x03, 0x28, 0x09, 0x52, 0x08, 0x70, 0x72, 0x6f, 0x74,
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+	0x42, 0x4f, 0x0a, 0x13, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70,
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+	0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d,
+	0x63, 0x6f, 0x72, 0x65, 0x2f, 0x61, 0x70, 0x70, 0x2f, 0x72, 0x6f, 0x75, 0x74, 0x65, 0x72, 0xaa,
+	0x02, 0x0f, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x52, 0x6f, 0x75, 0x74, 0x65,
+	0x72, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (

app/router/config.proto

@@ -119,8 +119,6 @@ message RoutingRule {
   repeated string protocol = 9;
 
   string attributes = 15;
-
-  string domain_matcher = 17;
 }
 
 message BalancingRule {

app/router/router_test.go

@@ -5,12 +5,10 @@ import (
 	"testing"
 
 	"github.com/golang/mock/gomock"
-
 	. "github.com/xtls/xray-core/app/router"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/session"
-	"github.com/xtls/xray-core/features/dns"
 	"github.com/xtls/xray-core/features/outbound"
 	routing_session "github.com/xtls/xray-core/features/routing/session"
 	"github.com/xtls/xray-core/testing/mocks"
@@ -117,11 +115,7 @@ func TestIPOnDemand(t *testing.T) {
 	defer mockCtl.Finish()
 
 	mockDNS := mocks.NewDNSClient(mockCtl)
-	mockDNS.EXPECT().LookupIP(gomock.Eq("example.com"), dns.IPOption{
-		IPv4Enable: true,
-		IPv6Enable: true,
-		FakeEnable: false,
-	}).Return([]net.IP{{192, 168, 0, 1}}, nil).AnyTimes()
+	mockDNS.EXPECT().LookupIP(gomock.Eq("example.com")).Return([]net.IP{{192, 168, 0, 1}}, nil).AnyTimes()
 
 	r := new(Router)
 	common.Must(r.Init(config, mockDNS, nil))
@@ -156,11 +150,7 @@ func TestIPIfNonMatchDomain(t *testing.T) {
 	defer mockCtl.Finish()
 
 	mockDNS := mocks.NewDNSClient(mockCtl)
-	mockDNS.EXPECT().LookupIP(gomock.Eq("example.com"), dns.IPOption{
-		IPv4Enable: true,
-		IPv6Enable: true,
-		FakeEnable: false,
-	}).Return([]net.IP{{192, 168, 0, 1}}, nil).AnyTimes()
+	mockDNS.EXPECT().LookupIP(gomock.Eq("example.com")).Return([]net.IP{{192, 168, 0, 1}}, nil).AnyTimes()
 
 	r := new(Router)
 	common.Must(r.Init(config, mockDNS, nil))

app/stats/command/command.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
-// 	protoc        v3.18.0
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.14.0
 // source: app/stats/command/command.proto
 
 package command
 
 import (
+	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -20,6 +21,10 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
 type GetStatsRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

app/stats/config.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
-// 	protoc        v3.18.0
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.14.0
 // source: app/stats/config.proto
 
 package stats
 
 import (
+	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -20,6 +21,10 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

common/buf/buffer.go

@@ -24,48 +24,18 @@ type Buffer struct {
 	UDP   *net.Destination
 }
 
-// New creates a Buffer with 0 length and 8K capacity.
+// New creates a Buffer with 0 length and 2K capacity.
 func New() *Buffer {
-	buf := pool.Get().([]byte)
-	if cap(buf) >= Size {
-		buf = buf[:Size]
-	} else {
-		buf = make([]byte, Size)
-	}
-
 	return &Buffer{
-		v: buf,
-	}
-}
-
-func NewExisted(b []byte) *Buffer {
-	if cap(b) < Size {
-		panic("Invalid buffer")
-	}
-
-	oLen := len(b)
-	if oLen < Size {
-		b = b[:Size]
-	}
-
-	return &Buffer{
-		v:   b,
-		end: int32(oLen),
+		v: pool.Get().([]byte),
 	}
 }
 
 // StackNew creates a new Buffer object on stack.
 // This method is for buffers that is released in the same function.
 func StackNew() Buffer {
-	buf := pool.Get().([]byte)
-	if cap(buf) >= Size {
-		buf = buf[:Size]
-	} else {
-		buf = make([]byte, Size)
-	}
-
 	return Buffer{
-		v: buf,
+		v: pool.Get().([]byte),
 	}
 }
 
@@ -78,10 +48,7 @@ func (b *Buffer) Release() {
 	p := b.v
 	b.v = nil
 	b.Clear()
-
-	if cap(p) == Size {
 	pool.Put(p)
-	}
 	b.UDP = nil
 }
 

common/buf/buffer_test.go

@@ -6,7 +6,6 @@ import (
 	"testing"
 
 	"github.com/google/go-cmp/cmp"
-
 	"github.com/xtls/xray-core/common"
 	. "github.com/xtls/xray-core/common/buf"
 )

common/buf/io.go

@@ -6,9 +6,6 @@ import (
 	"os"
 	"syscall"
 	"time"
-
-	"github.com/xtls/xray-core/features/stats"
-	"github.com/xtls/xray-core/transport/internet/stat"
 )
 
 // Reader extends io.Reader with MultiBuffer.
@@ -32,17 +29,9 @@ type Writer interface {
 }
 
 // WriteAllBytes ensures all bytes are written into the given writer.
-func WriteAllBytes(writer io.Writer, payload []byte, c stats.Counter) error {
-	wc := 0
-	defer func() {
-		if c != nil {
-			c.Add(int64(wc))
-		}
-	}()
-
+func WriteAllBytes(writer io.Writer, payload []byte) error {
 	for len(payload) > 0 {
 		n, err := writer.Write(payload)
-		wc += n
 		if err != nil {
 			return err
 		}
@@ -76,13 +65,7 @@ func NewReader(reader io.Reader) Reader {
 			if err != nil {
 				newError("failed to get sysconn").Base(err).WriteToLog()
 			} else {
-				var counter stats.Counter
-
-				if statConn, ok := reader.(*stat.CounterConnection); ok {
-					reader = statConn.Connection
-					counter = statConn.ReadCounter
-				}
-				return NewReadVReader(reader, rawConn, counter)
+				return NewReadVReader(reader, rawConn)
 			}
 		}
 	}
@@ -121,24 +104,13 @@ func NewWriter(writer io.Writer) Writer {
 		return mw
 	}
 
-	var iConn = writer
-	if statConn, ok := writer.(*stat.CounterConnection); ok {
-		iConn = statConn.Connection
-	}
-
-	if isPacketWriter(iConn) {
+	if isPacketWriter(writer) {
 		return &SequentialWriter{
 			Writer: writer,
 		}
 	}
 
-	var counter stats.Counter
-
-	if statConn, ok := writer.(*stat.CounterConnection); ok {
-		counter = statConn.WriteCounter
-	}
 	return &BufferToBytesWriter{
-		Writer:  iConn,
-		counter: counter,
+		Writer: writer,
 	}
 }

common/buf/multi_buffer_test.go

@@ -9,7 +9,6 @@ import (
 	"testing"
 
 	"github.com/google/go-cmp/cmp"
-
 	"github.com/xtls/xray-core/common"
 	. "github.com/xtls/xray-core/common/buf"
 )

common/buf/readv_posix.go

@@ -1,5 +1,6 @@
-//go:build !windows && !wasm && !illumos
-// +build !windows,!wasm,!illumos
+// +build !windows
+// +build !wasm
+// +build !illumos
 
 package buf
 

common/buf/readv_reader.go

@@ -1,14 +1,12 @@
-//go:build !wasm
 // +build !wasm
 
 package buf
 
 import (
 	"io"
+	"runtime"
 	"syscall"
 
-	"github.com/xtls/xray-core/features/stats"
-
 	"github.com/xtls/xray-core/common/platform"
 )
 
@@ -56,11 +54,10 @@ type ReadVReader struct {
 	rawConn syscall.RawConn
 	mr      multiReader
 	alloc   allocStrategy
-	counter stats.Counter
 }
 
 // NewReadVReader creates a new ReadVReader.
-func NewReadVReader(reader io.Reader, rawConn syscall.RawConn, counter stats.Counter) *ReadVReader {
+func NewReadVReader(reader io.Reader, rawConn syscall.RawConn) *ReadVReader {
 	return &ReadVReader{
 		Reader:  reader,
 		rawConn: rawConn,
@@ -68,7 +65,6 @@ func NewReadVReader(reader io.Reader, rawConn syscall.RawConn, counter stats.Cou
 			current: 1,
 		},
 		mr: newMultiReader(),
-		counter: counter,
 	}
 }
 
@@ -127,16 +123,10 @@ func (r *ReadVReader) ReadMultiBuffer() (MultiBuffer, error) {
 		if b.IsFull() {
 			r.alloc.Adjust(1)
 		}
-		if r.counter != nil && b != nil {
-			r.counter.Add(int64(b.Len()))
-		}
 		return MultiBuffer{b}, err
 	}
 
 	mb, err := r.readMulti()
-	if r.counter != nil && mb != nil {
-		r.counter.Add(int64(mb.Len()))
-	}
 	if err != nil {
 		return nil, err
 	}
@@ -144,13 +134,17 @@ func (r *ReadVReader) ReadMultiBuffer() (MultiBuffer, error) {
 	return mb, nil
 }
 
-var useReadv bool
+var useReadv = true
 
 func init() {
 	const defaultFlagValue = "NOT_DEFINED_AT_ALL"
 	value := platform.NewEnvFlag("xray.buf.readv").GetValue(func() string { return defaultFlagValue })
 	switch value {
-	case defaultFlagValue, "auto", "enable":
+	case defaultFlagValue, "auto":
+		if (runtime.GOARCH == "386" || runtime.GOARCH == "amd64" || runtime.GOARCH == "s390x") && (runtime.GOOS == "linux" || runtime.GOOS == "darwin" || runtime.GOOS == "windows") {
+			useReadv = true
+		}
+	case "enable":
 		useReadv = true
 	}
 }

common/buf/readv_reader_wasm.go

@@ -1,4 +1,3 @@
-//go:build wasm
 // +build wasm
 
 package buf

common/buf/readv_test.go

@@ -1,4 +1,3 @@
-//go:build !wasm
 // +build !wasm
 
 package buf_test
@@ -10,11 +9,10 @@ import (
 
 	"github.com/google/go-cmp/cmp"
 
-	"golang.org/x/sync/errgroup"
-
 	"github.com/xtls/xray-core/common"
 	. "github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/testing/servers/tcp"
+	"golang.org/x/sync/errgroup"
 )
 
 func TestReadvReader(t *testing.T) {
@@ -52,7 +50,7 @@ func TestReadvReader(t *testing.T) {
 	rawConn, err := conn.(*net.TCPConn).SyscallConn()
 	common.Must(err)
 
-	reader := NewReadVReader(conn, rawConn, nil)
+	reader := NewReadVReader(conn, rawConn)
 	var rmb MultiBuffer
 	for {
 		mb, err := reader.ReadMultiBuffer()

common/buf/readv_unix.go

@@ -1,4 +1,3 @@
-//go:build illumos
 // +build illumos
 
 package buf

common/buf/writer.go

@@ -5,8 +5,6 @@ import (
 	"net"
 	"sync"
 
-	"github.com/xtls/xray-core/features/stats"
-
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
 )
@@ -15,7 +13,6 @@ import (
 type BufferToBytesWriter struct {
 	io.Writer
 
-	counter stats.Counter
 	cache [][]byte
 }
 
@@ -29,7 +26,7 @@ func (w *BufferToBytesWriter) WriteMultiBuffer(mb MultiBuffer) error {
 	}
 
 	if len(mb) == 1 {
-		return WriteAllBytes(w.Writer, mb[0].Bytes(), w.counter)
+		return WriteAllBytes(w.Writer, mb[0].Bytes())
 	}
 
 	if cap(w.cache) < len(mb) {
@@ -48,15 +45,9 @@ func (w *BufferToBytesWriter) WriteMultiBuffer(mb MultiBuffer) error {
 	}()
 
 	nb := net.Buffers(bs)
-	wc := int64(0)
-	defer func() {
-		if w.counter != nil {
-			w.counter.Add(wc)
-		}
-	}()
+
 	for size > 0 {
 		n, err := nb.WriteTo(w.Writer)
-		wc += n
 		if err != nil {
 			return err
 		}
@@ -182,7 +173,7 @@ func (w *BufferedWriter) flushInternal() error {
 	w.buffer = nil
 
 	if writer, ok := w.writer.(io.Writer); ok {
-		err := WriteAllBytes(writer, b.Bytes(), nil)
+		err := WriteAllBytes(writer, b.Bytes())
 		b.Release()
 		return err
 	}

common/cache/lru.go

@@ -1,85 +0,0 @@
-package cache
-
-import (
-	"container/list"
-	sync "sync"
-)
-
-// Lru simple, fast lru cache implementation
-type Lru interface {
-	Get(key interface{}) (value interface{}, ok bool)
-	GetKeyFromValue(value interface{}) (key interface{}, ok bool)
-	PeekKeyFromValue(value interface{}) (key interface{}, ok bool) // Peek means check but NOT bring to top
-	Put(key, value interface{})
-}
-
-type lru struct {
-	capacity         int
-	doubleLinkedlist *list.List
-	keyToElement     *sync.Map
-	valueToElement   *sync.Map
-	mu               *sync.Mutex
-}
-
-type lruElement struct {
-	key   interface{}
-	value interface{}
-}
-
-// NewLru init a lru cache
-func NewLru(cap int) Lru {
-	return lru{
-		capacity:         cap,
-		doubleLinkedlist: list.New(),
-		keyToElement:     new(sync.Map),
-		valueToElement:   new(sync.Map),
-		mu:               new(sync.Mutex),
-	}
-}
-
-func (l lru) Get(key interface{}) (value interface{}, ok bool) {
-	if v, ok := l.keyToElement.Load(key); ok {
-		element := v.(*list.Element)
-		l.doubleLinkedlist.MoveBefore(element, l.doubleLinkedlist.Front())
-		return element.Value.(lruElement).value, true
-	}
-	return nil, false
-}
-
-func (l lru) GetKeyFromValue(value interface{}) (key interface{}, ok bool) {
-	if k, ok := l.valueToElement.Load(value); ok {
-		element := k.(*list.Element)
-		l.doubleLinkedlist.MoveBefore(element, l.doubleLinkedlist.Front())
-		return element.Value.(lruElement).key, true
-	}
-	return nil, false
-}
-
-func (l lru) PeekKeyFromValue(value interface{}) (key interface{}, ok bool) {
-	if k, ok := l.valueToElement.Load(value); ok {
-		element := k.(*list.Element)
-		return element.Value.(lruElement).key, true
-	}
-	return nil, false
-}
-
-func (l lru) Put(key, value interface{}) {
-	e := lruElement{key, value}
-	if v, ok := l.keyToElement.Load(key); ok {
-		element := v.(*list.Element)
-		element.Value = e
-		l.doubleLinkedlist.MoveBefore(element, l.doubleLinkedlist.Front())
-	} else {
-		l.mu.Lock()
-		element := l.doubleLinkedlist.PushFront(e)
-		l.keyToElement.Store(key, element)
-		l.valueToElement.Store(value, element)
-		if l.doubleLinkedlist.Len() > l.capacity {
-			toBeRemove := l.doubleLinkedlist.Back()
-			l.doubleLinkedlist.Remove(toBeRemove)
-			l.keyToElement.Delete(toBeRemove.Value.(lruElement).key)
-			l.valueToElement.Delete(toBeRemove.Value.(lruElement).value)
-		}
-		l.mu.Unlock()
-	}
-}

common/cache/lru_test.go

@@ -1,86 +0,0 @@
-package cache_test
-
-import (
-	"testing"
-
-	. "github.com/xtls/xray-core/common/cache"
-)
-
-func TestLruReplaceValue(t *testing.T) {
-	lru := NewLru(2)
-	lru.Put(2, 6)
-	lru.Put(1, 5)
-	lru.Put(1, 2)
-	v, _ := lru.Get(1)
-	if v != 2 {
-		t.Error("should get 2", v)
-	}
-	v, _ = lru.Get(2)
-	if v != 6 {
-		t.Error("should get 6", v)
-	}
-}
-
-func TestLruRemoveOld(t *testing.T) {
-	lru := NewLru(2)
-	v, ok := lru.Get(2)
-	if ok {
-		t.Error("should get nil", v)
-	}
-	lru.Put(1, 1)
-	lru.Put(2, 2)
-	v, _ = lru.Get(1)
-	if v != 1 {
-		t.Error("should get 1", v)
-	}
-	lru.Put(3, 3)
-	v, ok = lru.Get(2)
-	if ok {
-		t.Error("should get nil", v)
-	}
-	lru.Put(4, 4)
-	v, ok = lru.Get(1)
-	if ok {
-		t.Error("should get nil", v)
-	}
-	v, _ = lru.Get(3)
-	if v != 3 {
-		t.Error("should get 3", v)
-	}
-	v, _ = lru.Get(4)
-	if v != 4 {
-		t.Error("should get 4", v)
-	}
-}
-
-func TestGetKeyFromValue(t *testing.T) {
-	lru := NewLru(2)
-	lru.Put(3, 3)
-	lru.Put(2, 2)
-	lru.GetKeyFromValue(3)
-	lru.Put(1, 1)
-	v, ok := lru.GetKeyFromValue(2)
-	if ok {
-		t.Error("should get nil", v)
-	}
-	v, _ = lru.GetKeyFromValue(3)
-	if v != 3 {
-		t.Error("should get 3", v)
-	}
-}
-
-func TestPeekKeyFromValue(t *testing.T) {
-	lru := NewLru(2)
-	lru.Put(3, 3)
-	lru.Put(2, 2)
-	lru.PeekKeyFromValue(3)
-	lru.Put(1, 1)
-	v, ok := lru.PeekKeyFromValue(3)
-	if ok {
-		t.Error("should get nil", v)
-	}
-	v, _ = lru.PeekKeyFromValue(2)
-	if v != 2 {
-		t.Error("should get 2", v)
-	}
-}

common/crypto/internal/chacha_core_gen.go

@@ -1,4 +1,3 @@
-//go:build generate
 // +build generate
 
 package main

common/crypto/io.go

@@ -50,7 +50,7 @@ func NewCryptionWriter(stream cipher.Stream, writer io.Writer) *CryptionWriter {
 func (w *CryptionWriter) Write(data []byte) (int, error) {
 	w.stream.XORKeyStream(data, data)
 
-	if err := buf.WriteAllBytes(w.writer, data, nil); err != nil {
+	if err := buf.WriteAllBytes(w.writer, data); err != nil {
 		return 0, err
 	}
 	return len(data), nil

common/errors/errorgen/main.go

@@ -2,8 +2,11 @@ package main
 
 import (
 	"fmt"
+	"log"
 	"os"
 	"path/filepath"
+
+	"github.com/xtls/xray-core/common"
 )
 
 func main() {
@@ -17,21 +20,26 @@ func main() {
 		pkg = "core"
 	}
 
+	moduleName, gmnErr := common.GetModuleName(pwd)
+	if gmnErr != nil {
+		fmt.Println("can not get module path", gmnErr)
+		os.Exit(1)
+	}
+
 	file, err := os.OpenFile("errors.generated.go", os.O_WRONLY|os.O_TRUNC|os.O_CREATE, 0644)
 	if err != nil {
-		fmt.Printf("Failed to generate errors.generated.go: %v", err)
+		log.Fatalf("Failed to generate errors.generated.go: %v", err)
 		os.Exit(1)
 	}
 	defer file.Close()
 
-	fmt.Fprintf(file, `package %s
-
-import "github.com/xtls/xray-core/common/errors"
-
-type errPathObjHolder struct{}
-
-func newError(values ...interface{}) *errors.Error {
-	return errors.New(values...).WithPathObj(errPathObjHolder{})
-}
-`, pkg)
+	fmt.Fprintln(file, "package", pkg)
+	fmt.Fprintln(file, "")
+	fmt.Fprintln(file, "import \""+moduleName+"/common/errors\"")
+	fmt.Fprintln(file, "")
+	fmt.Fprintln(file, "type errPathObjHolder struct{}")
+	fmt.Fprintln(file, "")
+	fmt.Fprintln(file, "func newError(values ...interface{}) *errors.Error {")
+	fmt.Fprintln(file, "	return errors.New(values...).WithPathObj(errPathObjHolder{})")
+	fmt.Fprintln(file, "}")
 }

common/errors/errors.go

@@ -40,9 +40,11 @@ func (err *Error) pkgPath() string {
 		return ""
 	}
 	path := reflect.TypeOf(err.pathObj).PkgPath()
-	if len(path) >= trim {
+	for i := 0; i < len(path); i++ {
+		if path[i] == '/' {
 			return path[trim:]
 		}
+	}
 	return path
 }
 

common/log/dns.go

@@ -1,59 +0,0 @@
-package log
-
-import (
-	"net"
-	"strings"
-	"time"
-)
-
-type DNSLog struct {
-	Server  string
-	Domain  string
-	Result  []net.IP
-	Status  dnsStatus
-	Elapsed time.Duration
-	Error   error
-}
-
-func (l *DNSLog) String() string {
-	builder := &strings.Builder{}
-
-	// Server got answer: domain -> [ip1, ip2] 23ms
-	builder.WriteString(l.Server)
-	builder.WriteString(" ")
-	builder.WriteString(string(l.Status))
-	builder.WriteString(" ")
-	builder.WriteString(l.Domain)
-	builder.WriteString(" -> [")
-	builder.WriteString(joinNetIP(l.Result))
-	builder.WriteString("]")
-
-	if l.Elapsed > 0 {
-		builder.WriteString(" ")
-		builder.WriteString(l.Elapsed.String())
-	}
-	if l.Error != nil {
-		builder.WriteString(" <")
-		builder.WriteString(l.Error.Error())
-		builder.WriteString(">")
-	}
-	return builder.String()
-}
-
-type dnsStatus string
-
-var (
-	DNSQueried  = dnsStatus("got answer:")
-	DNSCacheHit = dnsStatus("cache HIT:")
-)
-
-func joinNetIP(ips []net.IP) string {
-	if len(ips) == 0 {
-		return ""
-	}
-	sips := make([]string, 0, len(ips))
-	for _, ip := range ips {
-		sips = append(sips, ip.String())
-	}
-	return strings.Join(sips, ", ")
-}

common/log/log.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
-// 	protoc        v3.18.0
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.14.0
 // source: common/log/log.proto
 
 package log
 
 import (
+	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -20,6 +21,10 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
 type Severity int32
 
 const (

common/mux/client_test.go

@@ -6,7 +6,6 @@ import (
 	"time"
 
 	"github.com/golang/mock/gomock"
-
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/mux"

common/net/address.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
-// 	protoc        v3.18.0
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.14.0
 // source: common/net/address.proto
 
 package net
 
 import (
+	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -20,6 +21,10 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
 // Address of a network host. It may be either an IP address or a domain
 // address.
 type IPOrDomain struct {

common/net/destination.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
-// 	protoc        v3.18.0
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.14.0
 // source: common/net/destination.proto
 
 package net
 
 import (
+	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -20,6 +21,10 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
 // Endpoint of a network connection.
 type Endpoint struct {
 	state         protoimpl.MessageState

common/net/network.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
-// 	protoc        v3.18.0
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.14.0
 // source: common/net/network.proto
 
 package net
 
 import (
+	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -20,6 +21,10 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
 type Network int32
 
 const (

common/net/port.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
-// 	protoc        v3.18.0
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.14.0
 // source: common/net/port.proto
 
 package net
 
 import (
+	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -20,6 +21,10 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
 // PortRange represents a range of ports.
 type PortRange struct {
 	state         protoimpl.MessageState

common/platform/ctlcmd/attr_other.go

@@ -1,4 +1,3 @@
-//go:build !windows
 // +build !windows
 
 package ctlcmd

common/platform/ctlcmd/attr_windows.go

@@ -1,4 +1,3 @@
-//go:build windows
 // +build windows
 
 package ctlcmd

common/platform/others.go

@@ -1,4 +1,3 @@
-//go:build !windows
 // +build !windows
 
 package platform

common/platform/windows.go

@@ -1,4 +1,3 @@
-//go:build windows
 // +build windows
 
 package platform

common/protocol/dns/io.go

@@ -4,11 +4,10 @@ import (
 	"encoding/binary"
 	"sync"
 
-	"golang.org/x/net/dns/dnsmessage"
-
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/serial"
+	"golang.org/x/net/dns/dnsmessage"
 )
 
 func PackMessage(msg *dnsmessage.Message) (*buf.Buffer, error) {

common/protocol/headers.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
-// 	protoc        v3.18.0
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.15.4
 // source: common/protocol/headers.proto
 
 package protocol
 
 import (
+	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -20,6 +21,10 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
 type SecurityType int32
 
 const (

common/protocol/server_spec.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
-// 	protoc        v3.18.0
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.14.0
 // source: common/protocol/server_spec.proto
 
 package protocol
 
 import (
+	proto "github.com/golang/protobuf/proto"
 	net "github.com/xtls/xray-core/common/net"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -21,6 +22,10 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
 type ServerEndpoint struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

common/protocol/tls/sniff.go

@@ -102,7 +102,7 @@ func ReadClientHello(data []byte, h *SniffHeader) error {
 					return errNotClientHello
 				}
 				if nameType == 0 {
-					serverName := string(d[:nameLen])
+					serverName := strings.ToLower(string(d[:nameLen]))
 					// An SNI value may not include a
 					// trailing dot. See
 					// https://tools.ietf.org/html/rfc6066#section-3.

common/protocol/user.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
-// 	protoc        v3.18.0
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.14.0
 // source: common/protocol/user.proto
 
 package protocol
 
 import (
+	proto "github.com/golang/protobuf/proto"
 	serial "github.com/xtls/xray-core/common/serial"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -21,6 +22,10 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
 // User is a generic user for all procotols.
 type User struct {
 	state         protoimpl.MessageState

common/serial/typed_message.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
-// 	protoc        v3.18.0
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.14.0
 // source: common/serial/typed_message.proto
 
 package serial
 
 import (
+	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -20,6 +21,10 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
 // TypedMessage is a serialized proto message along with its type name.
 type TypedMessage struct {
 	state         protoimpl.MessageState

common/session/session.go

@@ -63,7 +63,6 @@ type SniffingRequest struct {
 	ExcludeForDomain               []string
 	OverrideDestinationForProtocol []string
 	Enabled                        bool
-	MetadataOnly                   bool
 }
 
 // Content is the metadata of the connection content.

common/strmatcher/ac_automaton_matcher.go

@@ -1,243 +0,0 @@
-package strmatcher
-
-import (
-	"container/list"
-)
-
-const validCharCount = 53
-
-type MatchType struct {
-	matchType Type
-	exist     bool
-}
-
-const (
-	TrieEdge bool = true
-	FailEdge bool = false
-)
-
-type Edge struct {
-	edgeType bool
-	nextNode int
-}
-
-type ACAutomaton struct {
-	trie   [][validCharCount]Edge
-	fail   []int
-	exists []MatchType
-	count  int
-}
-
-func newNode() [validCharCount]Edge {
-	var s [validCharCount]Edge
-	for i := range s {
-		s[i] = Edge{
-			edgeType: FailEdge,
-			nextNode: 0,
-		}
-	}
-	return s
-}
-
-var char2Index = []int{
-	'A':  0,
-	'a':  0,
-	'B':  1,
-	'b':  1,
-	'C':  2,
-	'c':  2,
-	'D':  3,
-	'd':  3,
-	'E':  4,
-	'e':  4,
-	'F':  5,
-	'f':  5,
-	'G':  6,
-	'g':  6,
-	'H':  7,
-	'h':  7,
-	'I':  8,
-	'i':  8,
-	'J':  9,
-	'j':  9,
-	'K':  10,
-	'k':  10,
-	'L':  11,
-	'l':  11,
-	'M':  12,
-	'm':  12,
-	'N':  13,
-	'n':  13,
-	'O':  14,
-	'o':  14,
-	'P':  15,
-	'p':  15,
-	'Q':  16,
-	'q':  16,
-	'R':  17,
-	'r':  17,
-	'S':  18,
-	's':  18,
-	'T':  19,
-	't':  19,
-	'U':  20,
-	'u':  20,
-	'V':  21,
-	'v':  21,
-	'W':  22,
-	'w':  22,
-	'X':  23,
-	'x':  23,
-	'Y':  24,
-	'y':  24,
-	'Z':  25,
-	'z':  25,
-	'!':  26,
-	'$':  27,
-	'&':  28,
-	'\'': 29,
-	'(':  30,
-	')':  31,
-	'*':  32,
-	'+':  33,
-	',':  34,
-	';':  35,
-	'=':  36,
-	':':  37,
-	'%':  38,
-	'-':  39,
-	'.':  40,
-	'_':  41,
-	'~':  42,
-	'0':  43,
-	'1':  44,
-	'2':  45,
-	'3':  46,
-	'4':  47,
-	'5':  48,
-	'6':  49,
-	'7':  50,
-	'8':  51,
-	'9':  52,
-}
-
-func NewACAutomaton() *ACAutomaton {
-	var ac = new(ACAutomaton)
-	ac.trie = append(ac.trie, newNode())
-	ac.fail = append(ac.fail, 0)
-	ac.exists = append(ac.exists, MatchType{
-		matchType: Full,
-		exist:     false,
-	})
-	return ac
-}
-
-func (ac *ACAutomaton) Add(domain string, t Type) {
-	var node = 0
-	for i := len(domain) - 1; i >= 0; i-- {
-		var idx = char2Index[domain[i]]
-		if ac.trie[node][idx].nextNode == 0 {
-			ac.count++
-			if len(ac.trie) < ac.count+1 {
-				ac.trie = append(ac.trie, newNode())
-				ac.fail = append(ac.fail, 0)
-				ac.exists = append(ac.exists, MatchType{
-					matchType: Full,
-					exist:     false,
-				})
-			}
-			ac.trie[node][idx] = Edge{
-				edgeType: TrieEdge,
-				nextNode: ac.count,
-			}
-		}
-		node = ac.trie[node][idx].nextNode
-	}
-	ac.exists[node] = MatchType{
-		matchType: t,
-		exist:     true,
-	}
-	switch t {
-	case Domain:
-		ac.exists[node] = MatchType{
-			matchType: Full,
-			exist:     true,
-		}
-		var idx = char2Index['.']
-		if ac.trie[node][idx].nextNode == 0 {
-			ac.count++
-			if len(ac.trie) < ac.count+1 {
-				ac.trie = append(ac.trie, newNode())
-				ac.fail = append(ac.fail, 0)
-				ac.exists = append(ac.exists, MatchType{
-					matchType: Full,
-					exist:     false,
-				})
-			}
-			ac.trie[node][idx] = Edge{
-				edgeType: TrieEdge,
-				nextNode: ac.count,
-			}
-		}
-		node = ac.trie[node][idx].nextNode
-		ac.exists[node] = MatchType{
-			matchType: t,
-			exist:     true,
-		}
-	default:
-		break
-	}
-}
-
-func (ac *ACAutomaton) Build() {
-	var queue = list.New()
-	for i := 0; i < validCharCount; i++ {
-		if ac.trie[0][i].nextNode != 0 {
-			queue.PushBack(ac.trie[0][i])
-		}
-	}
-	for {
-		var front = queue.Front()
-		if front == nil {
-			break
-		} else {
-			var node = front.Value.(Edge).nextNode
-			queue.Remove(front)
-			for i := 0; i < validCharCount; i++ {
-				if ac.trie[node][i].nextNode != 0 {
-					ac.fail[ac.trie[node][i].nextNode] = ac.trie[ac.fail[node]][i].nextNode
-					queue.PushBack(ac.trie[node][i])
-				} else {
-					ac.trie[node][i] = Edge{
-						edgeType: FailEdge,
-						nextNode: ac.trie[ac.fail[node]][i].nextNode,
-					}
-				}
-			}
-		}
-	}
-}
-
-func (ac *ACAutomaton) Match(s string) bool {
-	var node = 0
-	var fullMatch = true
-	// 1. the match string is all through trie edge. FULL MATCH or DOMAIN
-	// 2. the match string is through a fail edge. NOT FULL MATCH
-	// 2.1 Through a fail edge, but there exists a valid node. SUBSTR
-	for i := len(s) - 1; i >= 0; i-- {
-		var idx = char2Index[s[i]]
-		fullMatch = fullMatch && ac.trie[node][idx].edgeType
-		node = ac.trie[node][idx].nextNode
-		switch ac.exists[node].matchType {
-		case Substr:
-			return true
-		case Domain:
-			if fullMatch {
-				return true
-			}
-		default:
-			break
-		}
-	}
-	return fullMatch && ac.exists[node].exist
-}

common/strmatcher/benchmark_test.go

@@ -8,19 +8,6 @@ import (
 	. "github.com/xtls/xray-core/common/strmatcher"
 )
 
-func BenchmarkACAutomaton(b *testing.B) {
-	ac := NewACAutomaton()
-	for i := 1; i <= 1024; i++ {
-		ac.Add(strconv.Itoa(i)+".v2ray.com", Domain)
-	}
-	ac.Build()
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		_ = ac.Match("0.v2ray.com")
-	}
-}
-
 func BenchmarkDomainMatcherGroup(b *testing.B) {
 	g := new(DomainMatcherGroup)
 

common/strmatcher/mph_matcher.go

@@ -1,301 +0,0 @@
-package strmatcher
-
-import (
-	"math/bits"
-	"regexp"
-	"sort"
-	"strings"
-	"unsafe"
-)
-
-// PrimeRK is the prime base used in Rabin-Karp algorithm.
-const PrimeRK = 16777619
-
-// calculate the rolling murmurHash of given string
-func RollingHash(s string) uint32 {
-	h := uint32(0)
-	for i := len(s) - 1; i >= 0; i-- {
-		h = h*PrimeRK + uint32(s[i])
-	}
-	return h
-}
-
-// A MphMatcherGroup is divided into three parts:
-// 1. `full` and `domain` patterns are matched by Rabin-Karp algorithm and minimal perfect hash table;
-// 2. `substr` patterns are matched by ac automaton;
-// 3. `regex` patterns are matched with the regex library.
-type MphMatcherGroup struct {
-	ac            *ACAutomaton
-	otherMatchers []matcherEntry
-	rules         []string
-	level0        []uint32
-	level0Mask    int
-	level1        []uint32
-	level1Mask    int
-	count         uint32
-	ruleMap       *map[string]uint32
-}
-
-func (g *MphMatcherGroup) AddFullOrDomainPattern(pattern string, t Type) {
-	h := RollingHash(pattern)
-	switch t {
-	case Domain:
-		(*g.ruleMap)["."+pattern] = h*PrimeRK + uint32('.')
-		fallthrough
-	case Full:
-		(*g.ruleMap)[pattern] = h
-	default:
-	}
-}
-
-func NewMphMatcherGroup() *MphMatcherGroup {
-	return &MphMatcherGroup{
-		ac:            nil,
-		otherMatchers: nil,
-		rules:         nil,
-		level0:        nil,
-		level0Mask:    0,
-		level1:        nil,
-		level1Mask:    0,
-		count:         1,
-		ruleMap:       &map[string]uint32{},
-	}
-}
-
-// AddPattern adds a pattern to MphMatcherGroup
-func (g *MphMatcherGroup) AddPattern(pattern string, t Type) (uint32, error) {
-	switch t {
-	case Substr:
-		if g.ac == nil {
-			g.ac = NewACAutomaton()
-		}
-		g.ac.Add(pattern, t)
-	case Full, Domain:
-		pattern = strings.ToLower(pattern)
-		g.AddFullOrDomainPattern(pattern, t)
-	case Regex:
-		r, err := regexp.Compile(pattern)
-		if err != nil {
-			return 0, err
-		}
-		g.otherMatchers = append(g.otherMatchers, matcherEntry{
-			m:  &regexMatcher{pattern: r},
-			id: g.count,
-		})
-	default:
-		panic("Unknown type")
-	}
-	return g.count, nil
-}
-
-// Build builds a minimal perfect hash table and ac automaton from insert rules
-func (g *MphMatcherGroup) Build() {
-	if g.ac != nil {
-		g.ac.Build()
-	}
-	keyLen := len(*g.ruleMap)
-	if keyLen == 0 {
-		keyLen = 1
-		(*g.ruleMap)["empty___"] = RollingHash("empty___")
-	}
-	g.level0 = make([]uint32, nextPow2(keyLen/4))
-	g.level0Mask = len(g.level0) - 1
-	g.level1 = make([]uint32, nextPow2(keyLen))
-	g.level1Mask = len(g.level1) - 1
-	var sparseBuckets = make([][]int, len(g.level0))
-	var ruleIdx int
-	for rule, hash := range *g.ruleMap {
-		n := int(hash) & g.level0Mask
-		g.rules = append(g.rules, rule)
-		sparseBuckets[n] = append(sparseBuckets[n], ruleIdx)
-		ruleIdx++
-	}
-	g.ruleMap = nil
-	var buckets []indexBucket
-	for n, vals := range sparseBuckets {
-		if len(vals) > 0 {
-			buckets = append(buckets, indexBucket{n, vals})
-		}
-	}
-	sort.Sort(bySize(buckets))
-
-	occ := make([]bool, len(g.level1))
-	var tmpOcc []int
-	for _, bucket := range buckets {
-		var seed = uint32(0)
-		for {
-			findSeed := true
-			tmpOcc = tmpOcc[:0]
-			for _, i := range bucket.vals {
-				n := int(strhashFallback(unsafe.Pointer(&g.rules[i]), uintptr(seed))) & g.level1Mask
-				if occ[n] {
-					for _, n := range tmpOcc {
-						occ[n] = false
-					}
-					seed++
-					findSeed = false
-					break
-				}
-				occ[n] = true
-				tmpOcc = append(tmpOcc, n)
-				g.level1[n] = uint32(i)
-			}
-			if findSeed {
-				g.level0[bucket.n] = seed
-				break
-			}
-		}
-	}
-}
-
-func nextPow2(v int) int {
-	if v <= 1 {
-		return 1
-	}
-	const MaxUInt = ^uint(0)
-	n := (MaxUInt >> bits.LeadingZeros(uint(v))) + 1
-	return int(n)
-}
-
-// Lookup searches for s in t and returns its index and whether it was found.
-func (g *MphMatcherGroup) Lookup(h uint32, s string) bool {
-	i0 := int(h) & g.level0Mask
-	seed := g.level0[i0]
-	i1 := int(strhashFallback(unsafe.Pointer(&s), uintptr(seed))) & g.level1Mask
-	n := g.level1[i1]
-	return s == g.rules[int(n)]
-}
-
-// Match implements IndexMatcher.Match.
-func (g *MphMatcherGroup) Match(pattern string) []uint32 {
-	result := []uint32{}
-	hash := uint32(0)
-	for i := len(pattern) - 1; i >= 0; i-- {
-		hash = hash*PrimeRK + uint32(pattern[i])
-		if pattern[i] == '.' {
-			if g.Lookup(hash, pattern[i:]) {
-				result = append(result, 1)
-				return result
-			}
-		}
-	}
-	if g.Lookup(hash, pattern) {
-		result = append(result, 1)
-		return result
-	}
-	if g.ac != nil && g.ac.Match(pattern) {
-		result = append(result, 1)
-		return result
-	}
-	for _, e := range g.otherMatchers {
-		if e.m.Match(pattern) {
-			result = append(result, e.id)
-			return result
-		}
-	}
-	return nil
-}
-
-type indexBucket struct {
-	n    int
-	vals []int
-}
-
-type bySize []indexBucket
-
-func (s bySize) Len() int           { return len(s) }
-func (s bySize) Less(i, j int) bool { return len(s[i].vals) > len(s[j].vals) }
-func (s bySize) Swap(i, j int)      { s[i], s[j] = s[j], s[i] }
-
-type stringStruct struct {
-	str unsafe.Pointer
-	len int
-}
-
-func strhashFallback(a unsafe.Pointer, h uintptr) uintptr {
-	x := (*stringStruct)(a)
-	return memhashFallback(x.str, h, uintptr(x.len))
-}
-
-const (
-	// Constants for multiplication: four random odd 64-bit numbers.
-	m1 = 16877499708836156737
-	m2 = 2820277070424839065
-	m3 = 9497967016996688599
-	m4 = 15839092249703872147
-)
-
-var hashkey = [4]uintptr{1, 1, 1, 1}
-
-func memhashFallback(p unsafe.Pointer, seed, s uintptr) uintptr {
-	h := uint64(seed + s*hashkey[0])
-tail:
-	switch {
-	case s == 0:
-	case s < 4:
-		h ^= uint64(*(*byte)(p))
-		h ^= uint64(*(*byte)(add(p, s>>1))) << 8
-		h ^= uint64(*(*byte)(add(p, s-1))) << 16
-		h = rotl31(h*m1) * m2
-	case s <= 8:
-		h ^= uint64(readUnaligned32(p))
-		h ^= uint64(readUnaligned32(add(p, s-4))) << 32
-		h = rotl31(h*m1) * m2
-	case s <= 16:
-		h ^= readUnaligned64(p)
-		h = rotl31(h*m1) * m2
-		h ^= readUnaligned64(add(p, s-8))
-		h = rotl31(h*m1) * m2
-	case s <= 32:
-		h ^= readUnaligned64(p)
-		h = rotl31(h*m1) * m2
-		h ^= readUnaligned64(add(p, 8))
-		h = rotl31(h*m1) * m2
-		h ^= readUnaligned64(add(p, s-16))
-		h = rotl31(h*m1) * m2
-		h ^= readUnaligned64(add(p, s-8))
-		h = rotl31(h*m1) * m2
-	default:
-		v1 := h
-		v2 := uint64(seed * hashkey[1])
-		v3 := uint64(seed * hashkey[2])
-		v4 := uint64(seed * hashkey[3])
-		for s >= 32 {
-			v1 ^= readUnaligned64(p)
-			v1 = rotl31(v1*m1) * m2
-			p = add(p, 8)
-			v2 ^= readUnaligned64(p)
-			v2 = rotl31(v2*m2) * m3
-			p = add(p, 8)
-			v3 ^= readUnaligned64(p)
-			v3 = rotl31(v3*m3) * m4
-			p = add(p, 8)
-			v4 ^= readUnaligned64(p)
-			v4 = rotl31(v4*m4) * m1
-			p = add(p, 8)
-			s -= 32
-		}
-		h = v1 ^ v2 ^ v3 ^ v4
-		goto tail
-	}
-
-	h ^= h >> 29
-	h *= m3
-	h ^= h >> 32
-	return uintptr(h)
-}
-func add(p unsafe.Pointer, x uintptr) unsafe.Pointer {
-	return unsafe.Pointer(uintptr(p) + x)
-}
-func readUnaligned32(p unsafe.Pointer) uint32 {
-	q := (*[4]byte)(p)
-	return uint32(q[0]) | uint32(q[1])<<8 | uint32(q[2])<<16 | uint32(q[3])<<24
-}
-
-func rotl31(x uint64) uint64 {
-	return (x << 31) | (x >> (64 - 31))
-}
-func readUnaligned64(p unsafe.Pointer) uint64 {
-	q := (*[8]byte)(p)
-	return uint64(q[0]) | uint64(q[1])<<8 | uint64(q[2])<<16 | uint64(q[3])<<24 | uint64(q[4])<<32 | uint64(q[5])<<40 | uint64(q[6])<<48 | uint64(q[7])<<56
-}