chore: regenerate protobufs

Co-authored-by: Shelikhoo <xiaokangwang@outlook.com>

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -1,87 +0,0 @@
-name: Bug report
-description: "Submit Xray-core bug"
-body:
-  - type: checkboxes
-    attributes:
-      label: Integrity requirements
-      description: |-
-        Please check all of the following options to prove that you have read and understood the requirements, otherwise this issue will be closed.
-      options:
-        - label: I confirm that I have read the documentation, understand the meaning of all the configuration items I wrote, and did not pile up seemingly useful options or default values.
-          required: true
-        - label: I provided the complete config and logs, rather than just providing the truncated parts based on my own judgment.
-          required: true
-        - label: I searched issues and did not find any similar issues.
-          required: true
-        - label: The problem can be successfully reproduced in the latest Release
-          required: true
-  - type: textarea
-    attributes:
-      label: Description
-      description: |-
-        Please provide a detailed description of the error. And the information you think valuable.
-        If the problem occurs after the update, please provide the **specific** version
-    validations:
-      required: true
-  - type: textarea
-    attributes:
-      label: Reproduction Method
-      description: |-
-        Based on the configuration you provided below, provide the method to reproduce the bug.
-    validations:
-      required: true
-  - type: markdown
-    attributes:
-      value: |-
-        ## Configuration and Log Section
-        
-        ### For config
-        Please provide the configuration files that can reproduce the problem, including the server and client.
-        Don't just paste a big exported config file here. Eliminate useless inbound/outbound, rules, options, this can help determine the problem, if you really want to get help.
-
-        ### For logs
-        Please set the log level to debug and dnsLog to true first.
-        Restart Xray-core, then operate according to the reproduction method, try to reduce the irrelevant part in the log.
-        Remember to delete parts with personal information (such as UUID and IP).
-        Provide the log of Xray-core, not the log output by the panel or other things.
-
-        ### Finally
-        After removing parts that do not affect reproduction, provide the actual running **complete** file, do not only provide inbound or outbound or a few lines of logs based on your own judgment.
-        Put the content between the preset ```<details><pre><code>``` ```</code></pre></details>``` in the text box.
-        If the problem is very clear that only related to one end (such as core startup failure/crash after correctly writing the config according to the documents), N/A can be filled in for unnecessary areas below.
-  - type: textarea
-    attributes:
-      label: Client config
-      value: |-
-        <details><pre><code>
-
-        </code></pre></details>
-    validations:
-      required: true
-  - type: textarea
-    attributes:
-      label: Server config
-      value: |-
-        <details><pre><code>
-
-        </code></pre></details>
-    validations:
-      required: true
-  - type: textarea
-    attributes:
-      label: Client log
-      value: |-
-        <details><pre><code>
-
-        </code></pre></details>
-    validations:
-      required: true
-  - type: textarea
-    attributes:
-      label: Server log
-      value: |-
-        <details><pre><code>
-
-        </code></pre></details>
-    validations:
-      required: true

.github/ISSUE_TEMPLATE/bug_report_zh.yml

@@ -1,87 +0,0 @@
-name: bug反馈
-description: "提交 Xray-core bug"
-body:
-  - type: checkboxes
-    attributes:
-      label: 完整性要求
-      description: |-
-        请勾选以下所有选项以证明您已经阅读并理解了以下要求，否则该 issue 将被关闭。
-      options:
-        - label: 我保证阅读了文档，了解所有我编写的配置文件项的含义，而不是大量堆砌看似有用的选项或默认值。
-          required: true
-        - label: 我提供了完整的配置文件和日志，而不是出于自己的判断只给出截取的部分。
-          required: true
-        - label: 我搜索了 issues, 没有发现已提出的类似问题。
-          required: true
-        - label: 问题在 Release 最新的版本上可以成功复现
-          required: true
-  - type: textarea
-    attributes:
-      label: 描述
-      description: |-
-        请提供错误的详细描述。以及你认为有价值的信息。
-        如果问题在更新后出现，请提供**具体**出现问题的版本号。
-    validations:
-      required: true
-  - type: textarea
-    attributes:
-      label: 重现方式
-      description: |-
-        基于你下面提供的配置，提供重现BUG方法。
-    validations:
-      required: true
-  - type: markdown
-    attributes:
-      value: |-
-        ## 配置与日志部分
-        
-        ### 对于配置文件
-        请提供可以重现问题的配置文件，包括服务端和客户端。
-        不要直接在这里黏贴一大段导出的 config 文件。去掉无用的出入站、规则、选项，这可以帮助确定问题，如果你真的想得到帮助。
-        
-        ### 对于日志
-        请先将日志等级设置为 debug, dnsLog 设置为true.
-        重启 Xray-core ，再按复现方式操作，尽量减少日志中的无关部分。
-        记得删除有关个人信息（如UUID与IP）的部分。
-        提供 Xray-core 的日志，而不是面板或者别的东西输出的日志。
-
-        ### 最后
-        在去掉不影响复现的部分后，提供实际运行的**完整**文件，不要出于自己的判断只提供入站出站或者几行日志。
-        把内容放在文本框预置的 ```<details><pre><code>``` 和 ```</code></pre></details>``` 中间。
-        如果问题十分明确只出现在某一端(如按文档正确编写配置后核心启动失败/崩溃)，可以在下面不需要的项目填入N/A.
-  - type: textarea
-    attributes:
-      label: 客户端配置
-      value: |-
-        <details><pre><code>
-
-        </code></pre></details>
-    validations:
-      required: true
-  - type: textarea
-    attributes:
-      label: 服务端配置
-      value: |-
-        <details><pre><code>
-
-        </code></pre></details>
-    validations:
-      required: true
-  - type: textarea
-    attributes:
-      label: 客户端日志
-      value: |-
-        <details><pre><code>
-
-        </code></pre></details>
-    validations:
-      required: true
-  - type: textarea
-    attributes:
-      label: 服务端日志
-      value: |-
-        <details><pre><code>
-
-        </code></pre></details>
-    validations:
-      required: true

.github/ISSUE_TEMPLATE/config.yml

@@ -1,4 +0,0 @@
-contact_links:
-  - name: Community Support and Questions
-    url: https://github.com/XTLS/Xray-core/discussions
-    about: Please ask and answer questions there. The issue tracker is for issues with core.

.github/build/friendly-filenames.json

@@ -2,6 +2,7 @@
   "android-arm64": { "friendlyName": "android-arm64-v8a" },
   "darwin-amd64": { "friendlyName": "macos-64" },
   "darwin-arm64": { "friendlyName": "macos-arm64-v8a" },
+  "dragonfly-amd64": { "friendlyName": "dragonfly-64" },
   "freebsd-386": { "friendlyName": "freebsd-32" },
   "freebsd-amd64": { "friendlyName": "freebsd-64" },
   "freebsd-arm64": { "friendlyName": "freebsd-arm64-v8a" },
@@ -21,7 +22,6 @@
   "linux-ppc64le": { "friendlyName": "linux-ppc64le" },
   "linux-ppc64": { "friendlyName": "linux-ppc64" },
   "linux-riscv64": { "friendlyName": "linux-riscv64" },
-  "linux-loong64": { "friendlyName": "linux-loong64" },
   "linux-s390x": { "friendlyName": "linux-s390x" },
   "openbsd-386": { "friendlyName": "openbsd-32" },
   "openbsd-amd64": { "friendlyName": "openbsd-64" },
@@ -29,6 +29,5 @@
   "openbsd-arm7": { "friendlyName": "openbsd-arm32-v7a" },
   "windows-386": { "friendlyName": "windows-32" },
   "windows-amd64": { "friendlyName": "windows-64" },
-  "windows-arm64": { "friendlyName": "windows-arm64-v8a" },
   "windows-arm7": { "friendlyName": "windows-arm32-v7a" }
 }

.github/dependabot.yml

@@ -1,15 +0,0 @@
-# To get started with Dependabot version updates, you'll need to specify which
-# package ecosystems to update and where the package manifests are located.
-# Please see the documentation for all configuration options:
-# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
-
-version: 2
-updates:
-  - package-ecosystem: "gomod"
-    directory: "/" # Location of package manifests
-    schedule:
-      interval: "daily"
-  - package-ecosystem: "github-actions"
-    directory: "/"
-    schedule:
-      interval: "daily"

.github/docker/Dockerfile

@@ -1,28 +0,0 @@
-# syntax=docker/dockerfile:1
-FROM --platform=$BUILDPLATFORM golang:alpine AS build
-WORKDIR /src
-COPY . .
-ARG TARGETOS
-ARG TARGETARCH
-RUN GOOS=$TARGETOS GOARCH=$TARGETARCH CGO_ENABLED=0 go build -o xray -trimpath -ldflags "-s -w -buildid=" ./main
-ADD https://github.com/v2fly/geoip/releases/latest/download/geoip.dat /v2fly/geoip.dat
-ADD https://github.com/v2fly/domain-list-community/releases/latest/download/dlc.dat /v2fly/geosite.dat
-ADD https://github.com/Loyalsoldier/v2ray-rules-dat/releases/latest/download/geoip.dat /loyalsoldier/geoip.dat
-ADD https://github.com/Loyalsoldier/v2ray-rules-dat/releases/latest/download/geosite.dat /loyalsoldier/geosite.dat
-
-# chainguard/static contains only tzdata and ca-certificates, can be built with multiarch static binaries.
-FROM --platform=linux/amd64 chainguard/static:latest
-WORKDIR /var/log/xray
-COPY .github/docker/files/config.json /etc/xray/config.json
-COPY --from=build --chmod=755 /src/xray /usr/bin/xray
-
-USER root
-WORKDIR /root
-VOLUME /etc/xray
-ARG TZ=Asia/Shanghai
-ENV TZ=$TZ
-ENTRYPOINT [ "/usr/bin/xray" ]
-CMD [ "-config", "/etc/xray/config.json" ]
-
-ARG flavor=v2fly
-COPY --from=build --chmod=644 /$flavor /usr/share/xray

.github/docker/files/config.json

@@ -1,18 +0,0 @@
-{
-  "inbounds": [{
-    "port": 9000,
-    "protocol": "vmess",
-    "settings": {
-      "clients": [
-        {
-          "id": "1eb6e917-774b-4a84-aff6-b058577c60a5",
-          "level": 1
-        }
-      ]
-    }
-  }],
-  "outbounds": [{
-    "protocol": "freedom",
-    "settings": {}
-  }]
-}

.github/workflows/docker.yml

@@ -1,76 +0,0 @@
-name: Build docker image
-
-on:
-  release:
-    types: [published]
-  push:
-    branches:
-      - main
-
-jobs:
-  build-image:
-    runs-on: ubuntu-latest
-    permissions:
-      packages: write
-    steps:
-      - uses: actions/checkout@v4
-      - name: Docker metadata
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: ghcr.io/${{ github.repository_owner }}/xray-core
-          flavor: latest=auto
-          tags: |
-            type=sha
-            type=ref,event=branch
-            type=ref,event=pr
-            type=semver,pattern={{version}}
-      - name: Docker metadata Loyalsoldier flavor
-        id: loyalsoldier
-        uses: docker/metadata-action@v5
-        with:
-          images: ghcr.io/${{ github.repository_owner }}/xray-core
-          flavor: |
-            latest=auto
-            suffix=-ls,onlatest=true
-          tags: |
-            type=sha
-            type=ref,event=branch
-            type=ref,event=pr
-            type=semver,pattern={{version}}
-      - name: Login to GitHub Container Registry
-        uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.repository_owner }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-      - name: Build and push
-        uses: docker/build-push-action@v6
-        with:
-          context: .
-          platforms: |
-            linux/amd64
-            linux/arm64
-            linux/loong64
-            linux/riscv64
-          provenance: false
-          file: .github/docker/Dockerfile
-          push: true
-          tags: ${{ steps.meta.outputs.tags }}
-      - name: Build and push Loyalsoldier flavor
-        uses: docker/build-push-action@v6
-        with:
-          context: .
-          platforms: |
-            linux/amd64
-            linux/arm64
-            linux/loong64
-            linux/riscv64
-          provenance: false
-          file: .github/docker/Dockerfile
-          build-args: flavor=loyalsoldier
-          push: true
-          tags: |
-            ${{ steps.loyalsoldier.outputs.tags }}

.github/workflows/release.yml

@@ -1,11 +1,5 @@
 name: Build and Release
 
-# NOTE: This Github Actions file depends on the Makefile.
-#       Building the correct package requires the correct binaries generated by the Makefile. To 
-#       ensure the correct output, the Makefile must accept the appropriate input and compile the 
-#       correct file with the correct name. If you need to modify this file, please ensure it won't 
-#       disrupt the Makefile.
-
 on:
   workflow_dispatch:
   release:
@@ -17,76 +11,29 @@ on:
       - "**/*.go"
       - "go.mod"
       - "go.sum"
-      - ".github/workflows/release.yml"
+      - ".github/workflows/*.yml"
   pull_request:
     types: [opened, synchronize, reopened]
     paths:
       - "**/*.go"
       - "go.mod"
       - "go.sum"
-      - ".github/workflows/release.yml"
+      - ".github/workflows/*.yml"
 jobs:
-  prepare:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Restore Cache
-        uses: actions/cache/restore@v4
-        with:
-          path: resources
-          key: xray-geodat-
-
-      - name: Update Geodat
-        id: update
-        uses: nick-fields/retry@v3
-        with:
-          timeout_minutes: 60
-          retry_wait_seconds: 60
-          max_attempts: 60
-          command: |
-            [ -d 'resources' ] || mkdir resources
-            LIST=('geoip geoip geoip' 'domain-list-community dlc geosite')
-            for i in "${LIST[@]}"
-            do
-              INFO=($(echo $i | awk 'BEGIN{FS=" ";OFS=" "} {print $1,$2,$3}'))
-              FILE_NAME="${INFO[2]}.dat"
-              echo -e "Verifying HASH key..."
-              HASH="$(curl -sL "https://raw.githubusercontent.com/v2fly/${INFO[0]}/release/${INFO[1]}.dat.sha256sum" | awk -F ' ' '{print $1}')"
-              if [ -s "./resources/${FILE_NAME}" ] && [ "$(sha256sum "./resources/${FILE_NAME}" | awk -F ' ' '{print $1}')" == "${HASH}" ]; then
-                  continue
-              else
-                  echo -e "Downloading https://raw.githubusercontent.com/v2fly/${INFO[0]}/release/${INFO[1]}.dat..."
-                  curl -L "https://raw.githubusercontent.com/v2fly/${INFO[0]}/release/${INFO[1]}.dat" -o ./resources/${FILE_NAME}
-                  echo -e "Verifying HASH key..."
-                  [ "$(sha256sum "./resources/${FILE_NAME}" | awk -F ' ' '{print $1}')" == "${HASH}" ] || { echo -e "The HASH key of ${FILE_NAME} does not match cloud one."; exit 1; }
-                  echo "unhit=true" >> $GITHUB_OUTPUT
-              fi
-            done
-
-      - name: Save Cache
-        uses: actions/cache/save@v4
-        if: ${{ steps.update.outputs.unhit }}
-        with:
-          path: resources
-          key: xray-geodat-${{ github.sha }}-${{ github.run_number }}
-
   build:
-    needs: prepare
-    permissions:
-      contents: write
     strategy:
       matrix:
         # Include amd64 on all platforms.
-        goos: [windows, freebsd, openbsd, linux, darwin]
+        goos: [windows, freebsd, openbsd, linux, dragonfly, darwin]
         goarch: [amd64, 386]
-        gotoolchain: [""]
-        patch-assetname: [""]
-
         exclude:
-          # Exclude i386 on darwin
+          # Exclude i386 on darwin and dragonfly.
+          - goarch: 386
+            goos: dragonfly
           - goarch: 386
             goos: darwin
         include:
-          # BEGIN MacOS ARM64
+          # BEIGIN MacOS ARM64
           - goos: darwin
             goarch: arm64
           # END MacOS ARM64
@@ -105,21 +52,17 @@ jobs:
           - goos: android
             goarch: arm64
           # END Android ARM 8
-          # Windows ARM
+          # Windows ARM 7
-          - goos: windows
-            goarch: arm64
           - goos: windows
             goarch: arm
             goarm: 7
           # BEGIN Other architectures
-          # BEGIN riscv64 & ARM64 & LOONG64
+          # BEGIN riscv64 & ARM64
           - goos: linux
             goarch: arm64
           - goos: linux
             goarch: riscv64
-          - goos: linux
+          # END riscv64 & ARM64
-            goarch: loong64
-          # END riscv64 & ARM64 & LOONG64
           # BEGIN MIPS
           - goos: linux
             goarch: mips64
@@ -155,16 +98,6 @@ jobs:
             goarch: arm
             goarm: 7
           # END OPENBSD ARM
-          # BEGIN Windows 7
-          - goos: windows
-            goarch: amd64
-            gotoolchain: 1.21.4
-            patch-assetname: win7-64
-          - goos: windows
-            goarch: 386
-            gotoolchain: 1.21.4
-            patch-assetname: win7-32
-          # END Windows 7
       fail-fast: false
 
     runs-on: ubuntu-latest
@@ -175,51 +108,75 @@ jobs:
       CGO_ENABLED: 0
     steps:
       - name: Checkout codebase
-        uses: actions/checkout@v4
+        uses: actions/checkout@v2
 
       - name: Show workflow information 
+        id: get_filename
         run: |
-          _NAME=${{ matrix.patch-assetname }}
+          export _NAME=$(jq ".[\"$GOOS-$GOARCH$GOARM$GOMIPS\"].friendlyName" -r < .github/build/friendly-filenames.json)
-          [ -n "$_NAME" ] || _NAME=$(jq ".[\"$GOOS-$GOARCH$GOARM$GOMIPS\"].friendlyName" -r < .github/build/friendly-filenames.json)
           echo "GOOS: $GOOS, GOARCH: $GOARCH, GOARM: $GOARM, GOMIPS: $GOMIPS, RELEASE_NAME: $_NAME"
+          echo "::set-output name=ASSET_NAME::$_NAME"
           echo "ASSET_NAME=$_NAME" >> $GITHUB_ENV
 
       - name: Set up Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v2
         with:
-          go-version: ${{ matrix.gotoolchain || '1.23' }}
+          go-version: ^1.16
-          check-latest: true
 
       - name: Get project dependencies
         run: go mod download
       
+      - name: Replace Custom to Commit ID
+        if: github.event_name != 'release'
+        run: |
+          ID=$(git rev-parse --short ${{ github.sha }})
+          if [ "${{ github.event_name }}" == 'pull_request' ]
+          then
+            ID=$(git rev-parse --short ${{ github.event.pull_request.head.sha }})
+          fi
+          sed -i '/build/ s/Custom/'$ID'/' ./core/core.go
+ 
       - name: Build Xray
         run: |
           mkdir -p build_assets
-          make
+          go build -v -o build_assets/xray -trimpath -ldflags "-s -w -buildid=" ./main
-          find . -maxdepth 1 -type f -regex './\(wxray\|xray\|xray_softfloat\)\(\|.exe\)' -exec mv {} ./build_assets/ \;
     
-      - name: Restore Cache
+      - name: Build Mips softfloat Xray
-        uses: actions/cache/restore@v4
+        if: matrix.goarch == 'mips' || matrix.goarch == 'mipsle'
-        with:
+        run: |
-          path: resources
+          GOMIPS=softfloat go build -v -o build_assets/xray_softfloat -trimpath -ldflags "-s -w -buildid=" ./main
-          key: xray-geodat-
+
-
+      - name: Rename Windows Xray
-      - name: Copy README.md & LICENSE
+        if: matrix.goos == 'windows'
+        run: |
+          cd ./build_assets || exit 1
+          mv xray xray.exe
+
+      - name: Prepare to release
         run: |
-          mv -f resources/* build_assets
           cp ${GITHUB_WORKSPACE}/README.md ./build_assets/README.md
           cp ${GITHUB_WORKSPACE}/LICENSE ./build_assets/LICENSE
+          LIST=('geoip geoip geoip' 'domain-list-community dlc geosite')
+          for i in "${LIST[@]}"
+          do
+            INFO=($(echo $i | awk 'BEGIN{FS=" ";OFS=" "} {print $1,$2,$3}'))
+            LASTEST_TAG="$(curl -sL "https://api.github.com/repos/v2fly/${INFO[0]}/releases" | jq -r ".[0].tag_name" || echo "latest")"
+            FILE_NAME="${INFO[2]}.dat"
+            echo -e "Downloading ${FILE_NAME}..."
+            curl -L "https://github.com/v2fly/${INFO[0]}/releases/download/${LASTEST_TAG}/${INFO[1]}.dat" -o ./build_assets/${FILE_NAME}
+            echo -e "Verifying HASH key..."
+            HASH="$(curl -sL "https://github.com/v2fly/${INFO[0]}/releases/download/${LASTEST_TAG}/${INFO[1]}.dat.sha256sum" | awk -F ' ' '{print $1}')"
+            [ "$(sha256sum "./build_assets/${FILE_NAME}" | awk -F ' ' '{print $1}')" == "${HASH}" ] || { echo -e "The HASH key of ${FILE_NAME} does not match cloud one."; exit 1; }
+          done
 
       - name: Create ZIP archive
-        if: github.event_name == 'release'
         shell: bash
         run: |
           pushd build_assets || exit 1
           touch -mt $(date +%Y01010000) *
-          zip -9vr ../Xray-${{ env.ASSET_NAME }}.zip .
+          zip -9vr ../Xray-$ASSET_NAME.zip .
           popd || exit 1
-          FILE=./Xray-${{ env.ASSET_NAME }}.zip
+          FILE=./Xray-$ASSET_NAME.zip
           DGST=$FILE.dgst
           for METHOD in {"md5","sha1","sha256","sha512"}
           do
@@ -228,20 +185,20 @@ jobs:
 
       - name: Change the name
         run: |
-          mv build_assets Xray-${{ env.ASSET_NAME }}
+          mv build_assets Xray-$ASSET_NAME
 
       - name: Upload files to Artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v2
         with:
-          name: Xray-${{ env.ASSET_NAME }}
+          name: Xray-${{ steps.get_filename.outputs.ASSET_NAME }}
           path: |
-            ./Xray-${{ env.ASSET_NAME }}/*
+            ./Xray-${{ steps.get_filename.outputs.ASSET_NAME }}/*
 
       - name: Upload binaries to release
         uses: svenstaro/upload-release-action@v2
         if: github.event_name == 'release'
         with:
           repo_token: ${{ secrets.GITHUB_TOKEN }}
-          file: ./Xray-${{ env.ASSET_NAME }}.zip*
+          file: ./Xray-${{ steps.get_filename.outputs.ASSET_NAME }}.zip*
           tag: ${{ github.ref }}
           file_glob: true

.github/workflows/test.yml

@@ -19,26 +19,30 @@ on:
 
 jobs:
   test:
-    permissions:
-      contents: read
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
         os: [windows-latest, ubuntu-latest, macos-latest]
     steps:
-      - name: Checkout codebase
-        uses: actions/checkout@v4
       - name: Set up Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v2
         with:
-          go-version: '1.23'
+          go-version: ^1.16
-          check-latest: true
+      - name: Checkout codebase
-      - name: Restore Cache
+        uses: actions/checkout@v2
-        uses: actions/cache/restore@v4
+
-        with:
+      - name: Prepare geo*dat
-          path: resources
+        if: ${{ matrix.os != 'windows-latest' }}
-          key: xray-geodat-
+        run: |
-          enableCrossOsArchive: true
+          mkdir resources
+          wget -O ./resources/geoip.dat https://github.com/v2fly/geoip/releases/latest/download/geoip.dat
+          wget -O ./resources/geosite.dat https://github.com/v2fly/domain-list-community/releases/latest/download/dlc.dat
+      - name: Prepare geo*dat for Windows
+        if: ${{ matrix.os == 'windows-latest' }}
+        run: |
+          mkdir resources
+          Invoke-WebRequest -Uri "https://github.com/v2fly/geoip/releases/latest/download/geoip.dat" -OutFile "./resources/geoip.dat"
+          Invoke-WebRequest -Uri "https://github.com/v2fly/domain-list-community/releases/latest/download/dlc.dat" -OutFile "./resources/geosite.dat"
       - name: Test
         run: go test -timeout 1h -v ./...

.gitignore

@@ -1,33 +0,0 @@
-# Binaries for programs and plugins
-*.exe
-*.exe~
-*.dll
-*.so
-*.dylib
-
-# Test binary, built with `go test -c`
-*.test
-
-# Output of the go coverage tool, specifically when used with LiteIDE
-*.out
-
-# Dependency directories (remove the comment below to include it)
-# vendor/
-
-*.DS_Store
-.idea
-*.zip
-*.tar.gz
-xray
-xray_softfloat
-mockgen
-vprotogen
-!infra/vprotogen/
-errorgen
-!common/errors/errorgen/
-*.dat
-.vscode
-/build_assets
-
-# Output from dlv test
-**/debug.*

CODE_OF_CONDUCT.md

@@ -1,128 +0,0 @@
-# Contributor Covenant Code of Conduct
-
-## Our Pledge
-
-We as members, contributors, and leaders pledge to make participation in our
-community a harassment-free experience for everyone, regardless of age, body
-size, visible or invisible disability, ethnicity, sex characteristics, gender
-identity and expression, level of experience, education, socio-economic status,
-nationality, personal appearance, race, religion, or sexual identity
-and orientation.
-
-We pledge to act and interact in ways that contribute to an open, welcoming,
-diverse, inclusive, and healthy community.
-
-## Our Standards
-
-Examples of behavior that contributes to a positive environment for our
-community include:
-
-* Demonstrating empathy and kindness toward other people
-* Being respectful of differing opinions, viewpoints, and experiences
-* Giving and gracefully accepting constructive feedback
-* Accepting responsibility and apologizing to those affected by our mistakes,
-  and learning from the experience
-* Focusing on what is best not just for us as individuals, but for the
-  overall community
-
-Examples of unacceptable behavior include:
-
-* The use of sexualized language or imagery, and sexual attention or
-  advances of any kind
-* Trolling, insulting or derogatory comments, and personal or political attacks
-* Public or private harassment
-* Publishing others' private information, such as a physical or email
-  address, without their explicit permission
-* Other conduct which could reasonably be considered inappropriate in a
-  professional setting
-
-## Enforcement Responsibilities
-
-Community leaders are responsible for clarifying and enforcing our standards of
-acceptable behavior and will take appropriate and fair corrective action in
-response to any behavior that they deem inappropriate, threatening, offensive,
-or harmful.
-
-Community leaders have the right and responsibility to remove, edit, or reject
-comments, commits, code, wiki edits, issues, and other contributions that are
-not aligned to this Code of Conduct, and will communicate reasons for moderation
-decisions when appropriate.
-
-## Scope
-
-This Code of Conduct applies within all community spaces, and also applies when
-an individual is officially representing the community in public spaces.
-Examples of representing our community include using an official e-mail address,
-posting via an official social media account, or acting as an appointed
-representative at an online or offline event.
-
-## Enforcement
-
-Instances of abusive, harassing, or otherwise unacceptable behavior may be
-reported to the community leaders responsible for enforcement at
-https://t.me/projectXtls.
-All complaints will be reviewed and investigated promptly and fairly.
-
-All community leaders are obligated to respect the privacy and security of the
-reporter of any incident.
-
-## Enforcement Guidelines
-
-Community leaders will follow these Community Impact Guidelines in determining
-the consequences for any action they deem in violation of this Code of Conduct:
-
-### 1. Correction
-
-**Community Impact**: Use of inappropriate language or other behavior deemed
-unprofessional or unwelcome in the community.
-
-**Consequence**: A private, written warning from community leaders, providing
-clarity around the nature of the violation and an explanation of why the
-behavior was inappropriate. A public apology may be requested.
-
-### 2. Warning
-
-**Community Impact**: A violation through a single incident or series
-of actions.
-
-**Consequence**: A warning with consequences for continued behavior. No
-interaction with the people involved, including unsolicited interaction with
-those enforcing the Code of Conduct, for a specified period of time. This
-includes avoiding interactions in community spaces as well as external channels
-like social media. Violating these terms may lead to a temporary or
-permanent ban.
-
-### 3. Temporary Ban
-
-**Community Impact**: A serious violation of community standards, including
-sustained inappropriate behavior.
-
-**Consequence**: A temporary ban from any sort of interaction or public
-communication with the community for a specified period of time. No public or
-private interaction with the people involved, including unsolicited interaction
-with those enforcing the Code of Conduct, is allowed during this period.
-Violating these terms may lead to a permanent ban.
-
-### 4. Permanent Ban
-
-**Community Impact**: Demonstrating a pattern of violation of community
-standards, including sustained inappropriate behavior,  harassment of an
-individual, or aggression toward or disparagement of classes of individuals.
-
-**Consequence**: A permanent ban from any sort of public interaction within
-the community.
-
-## Attribution
-
-This Code of Conduct is adapted from the [Contributor Covenant][homepage],
-version 2.0, available at
-https://www.contributor-covenant.org/version/2/0/code_of_conduct.html.
-
-Community Impact Guidelines were inspired by [Mozilla's code of conduct
-enforcement ladder](https://github.com/mozilla/diversity).
-
-[homepage]: https://www.contributor-covenant.org
-
-For answers to common questions about this code of conduct, see the FAQ at
-https://www.contributor-covenant.org/faq. Translations are available at
-https://www.contributor-covenant.org/translations.

Makefile

@@ -1,37 +0,0 @@
-NAME = xray
-
-VERSION=$(shell git describe --always --dirty)
-
-# NOTE: This MAKEFILE can be used to build Xray-core locally and in Automatic workflows. It is \
-	provided for convenience in automatic building and functions as a part of it.
-# NOTE: If you need to modify this file, please be aware that:\
-	- This file is not the main Makefile; it only accepts environment variables and builds the \
-	binary.\
-	- Automatic building expects the correct binaries to be built by this Makefile. If you \
-	intend to propose a change to this Makefile, carefully review the file below and ensure \
-	that the change will not accidentally break the automatic building:\
-		.github/workflows/release.yml \
-	Otherwise it is recommended to contact the project maintainers.
-
-LDFLAGS = -X github.com/xtls/xray-core/core.build=$(VERSION) -s -w -buildid=
-PARAMS = -trimpath -ldflags "$(LDFLAGS)" -v
-MAIN = ./main
-PREFIX ?= $(shell go env GOPATH)
-ifeq ($(GOOS),windows)
-OUTPUT = $(NAME).exe
-ADDITION = go build -o w$(NAME).exe -trimpath -ldflags "-H windowsgui $(LDFLAGS)" -v $(MAIN)
-else
-OUTPUT = $(NAME)
-endif
-ifeq ($(shell echo "$(GOARCH)" | grep -Eq "(mips|mipsle)" && echo true),true) # 
-ADDITION = GOMIPS=softfloat go build -o $(NAME)_softfloat -trimpath -ldflags "$(LDFLAGS)" -v $(MAIN)
-endif
-.PHONY: clean build
-
-build:
-	go build -o $(OUTPUT) $(PARAMS) $(MAIN)
-	$(ADDITION)
-
-clean:
-	go clean -v -i $(PWD)
-	rm -f xray xray.exe wxray.exe xray_softfloat

README.md

@@ -1,20 +1,82 @@
 # Project X
 
-[Project X](https://github.com/XTLS) originates from XTLS protocol, providing a set of network tools such as [Xray-core](https://github.com/XTLS/Xray-core) and [REALITY](https://github.com/XTLS/REALITY).
+[Project X](https://github.com/XTLS) originates from XTLS protocol, provides a set of network tools such as [Xray-core](https://github.com/XTLS/Xray-core) and [Xray-flutter](https://github.com/XTLS/Xray-flutter).
-
-[README](https://github.com/XTLS/Xray-core#readme) is open, so feel free to submit your project [here](https://github.com/XTLS/Xray-core/pulls).
-
-## Donation & NFTs
-
-[Announcement of NFTs by Project X](https://github.com/XTLS/Xray-core/discussions/3633)
 
 ## License
 
 [Mozilla Public License Version 2.0](https://github.com/XTLS/Xray-core/blob/main/LICENSE)
 
-## Documentation
+## Installation
 
-[Project X Official Website](https://xtls.github.io)
+- Linux Script
+  - [Xray-install](https://github.com/XTLS/Xray-install)
+  - [Xray-script](https://github.com/kirin10000/Xray-script)
+- Docker
+  - [teddysun/xray](https://hub.docker.com/r/teddysun/xray)
+  - Xray-docker
+- One Click
+  - [ProxySU](https://github.com/proxysu/ProxySU)
+  - [v2ray-agent](https://github.com/mack-a/v2ray-agent)
+  - [Xray-yes](https://github.com/jiuqi9997/Xray-yes)
+  - [Xray_onekey](https://github.com/wulabing/Xray_onekey)
+- Magisk
+  - [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)
+
+## Usage
+
+[Xray-examples](https://github.com/XTLS/Xray-examples) / [VLESS-TCP-XTLS-WHATEVER](https://github.com/XTLS/Xray-examples/tree/main/VLESS-TCP-XTLS-WHATEVER)
+
+## GUI Clients
+
+- OpenWrt
+  - [PassWall](https://github.com/xiaorouji/openwrt-passwall)
+  - [Hello World](https://github.com/jerrykuku/luci-app-vssr)
+  - [ShadowSocksR Plus+](https://github.com/fw876/helloworld)
+  - [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)
+  - [Netch (NetFilter & TUN/TAP)](https://github.com/NetchX/Netch)
+- Android
+  - [v2rayNG](https://github.com/2dust/v2rayNG)
+  - [Kitsunebi](https://github.com/rurirei/Kitsunebi/tree/release_xtls)
+- iOS / Mac
+  - [Shadowrocket](https://apps.apple.com/app/shadowrocket/id932747118)
+
+## Credits
+
+This repo relies on the following third-party projects:
+
+- Special thanks:
+  - [v2fly/v2ray-core](https://github.com/v2fly/v2ray-core)
+- In production:
+  - [gorilla/websocket](https://github.com/gorilla/websocket)
+  - [lucas-clemente/quic-go](https://github.com/lucas-clemente/quic-go)
+  - [pires/go-proxyproto](https://github.com/pires/go-proxyproto)
+  - [seiflotfy/cuckoofilter](https://github.com/seiflotfy/cuckoofilter)
+  - [google/starlark-go](https://github.com/google/starlark-go)
+- For testing only:
+  - [miekg/dns](https://github.com/miekg/dns)
+  - [h12w/socks](https://github.com/h12w/socks)
+
+## Compilation
+
+### Windows
+
+```
+go build -o xray.exe -trimpath -ldflags "-s -w -buildid=" ./main
+```
+
+### Linux / macOS
+
+```
+go build -o xray -trimpath -ldflags "-s -w -buildid=" ./main
+```
 
 ## Telegram
 
@@ -22,124 +84,6 @@
 
 [Project X Channel](https://t.me/projectXtls)
 
-[Project VLESS](https://t.me/projectVless) (non-Chinese)
-
-## Installation
-
-- Linux Script
-  - [XTLS/Xray-install](https://github.com/XTLS/Xray-install) (**Official**)
-  - [tempest](https://github.com/team-cloudchaser/tempest) (supports [`systemd`](https://systemd.io) and [OpenRC](https://github.com/OpenRC/openrc); Linux-only)
-- Docker
-  - [ghcr.io/xtls/xray-core](https://ghcr.io/xtls/xray-core) (**Official**)
-  - [teddysun/xray](https://hub.docker.com/r/teddysun/xray)
-  - [wulabing/xray_docker](https://github.com/wulabing/xray_docker)
-- Web Panel - **WARNING: Please DO NOT USE plain HTTP panels like 3X-UI**, as they are believed to be bribed by Iran GFW for supporting plain HTTP by default and refused to change (https://github.com/XTLS/Xray-core/pull/3884#issuecomment-2439595331), which has already put many users' data security in danger in the past few years. **If you are already using 3X-UI, please switch to the following panels, which are verified to support HTTPS and SSH port forwarding only:**
-  - [Marzban](https://github.com/Gozargah/Marzban)
-  - [Xray-UI](https://github.com/qist/xray-ui)
-  - [Hiddify](https://github.com/hiddify/Hiddify-Manager)
-- One Click
-  - [Xray-REALITY](https://github.com/zxcvos/Xray-script), [xray-reality](https://github.com/sajjaddg/xray-reality), [reality-ezpz](https://github.com/aleskxyz/reality-ezpz)
-  - [Xray_bash_onekey](https://github.com/hello-yunshu/Xray_bash_onekey), [XTool](https://github.com/LordPenguin666/XTool)
-  - [v2ray-agent](https://github.com/mack-a/v2ray-agent), [Xray_onekey](https://github.com/wulabing/Xray_onekey), [ProxySU](https://github.com/proxysu/ProxySU)
-- Magisk
-  - [Xray4Magisk](https://github.com/Asterisk4Magisk/Xray4Magisk)
-  - [Xray_For_Magisk](https://github.com/E7KMbb/Xray_For_Magisk)
-- Homebrew
-  - `brew install xray`
-
-## Usage
-
-- Example
-  - [VLESS-XTLS-uTLS-REALITY](https://github.com/XTLS/REALITY#readme)
-  - [VLESS-TCP-XTLS-Vision](https://github.com/XTLS/Xray-examples/tree/main/VLESS-TCP-XTLS-Vision)
-  - [All-in-One-fallbacks-Nginx](https://github.com/XTLS/Xray-examples/tree/main/All-in-One-fallbacks-Nginx)
-- Xray-examples
-  - [XTLS/Xray-examples](https://github.com/XTLS/Xray-examples)
-  - [chika0801/Xray-examples](https://github.com/chika0801/Xray-examples)
-  - [lxhao61/integrated-examples](https://github.com/lxhao61/integrated-examples)
-- Tutorial
-  - [XTLS Vision](https://github.com/chika0801/Xray-install)
-  - [REALITY (English)](https://cscot.pages.dev/2023/03/02/Xray-REALITY-tutorial/)
-  - [XTLS-Iran-Reality (English)](https://github.com/SasukeFreestyle/XTLS-Iran-Reality)
-  - [Xray REALITY with 'steal oneself' (English)](https://computerscot.github.io/vless-xtls-utls-reality-steal-oneself.html)
-  - [Xray with WireGuard inbound (English)](https://g800.pages.dev/wireguard)
-
-## GUI Clients
-
-- OpenWrt
-  - [PassWall](https://github.com/xiaorouji/openwrt-passwall), [PassWall 2](https://github.com/xiaorouji/openwrt-passwall2)
-  - [ShadowSocksR Plus+](https://github.com/fw876/helloworld)
-  - [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)
-  - [Furious](https://github.com/LorenEteval/Furious)
-  - [Invisible Man - Xray](https://github.com/InvisibleManVPN/InvisibleMan-XRayClient)
-- Android
-  - [v2rayNG](https://github.com/2dust/v2rayNG)
-  - [X-flutter](https://github.com/XTLS/X-flutter)
-  - [SaeedDev94/Xray](https://github.com/SaeedDev94/Xray)
-- iOS & macOS arm64
-  - [FoXray](https://apps.apple.com/app/foxray/id6448898396)
-  - [Streisand](https://apps.apple.com/app/streisand/id6450534064)
-- macOS arm64 & x64
-  - [V2rayU](https://github.com/yanue/V2rayU)
-  - [V2RayXS](https://github.com/tzmax/V2RayXS)
-  - [Furious](https://github.com/LorenEteval/Furious)
-  - [FoXray](https://apps.apple.com/app/foxray/id6448898396)
-- Linux
-  - [v2rayA](https://github.com/v2rayA/v2rayA)
-  - [Furious](https://github.com/LorenEteval/Furious)
-
-## Others that support VLESS, XTLS, REALITY, XUDP, PLUX...
-
-- iOS & macOS arm64
-  - [Shadowrocket](https://apps.apple.com/app/shadowrocket/id932747118)
-- Xray Tools
-  - [xray-knife](https://github.com/lilendian0x00/xray-knife)
-- Xray Wrapper
-  - [XTLS/libXray](https://github.com/XTLS/libXray)
-  - [xtlsapi](https://github.com/hiddify/xtlsapi)
-  - [AndroidLibXrayLite](https://github.com/2dust/AndroidLibXrayLite)
-  - [Xray-core-python](https://github.com/LorenEteval/Xray-core-python)
-  - [xray-api](https://github.com/XVGuardian/xray-api)
-- [XrayR](https://github.com/XrayR-project/XrayR)
-  - [XrayR-release](https://github.com/XrayR-project/XrayR-release)
-  - [XrayR-V2Board](https://github.com/missuo/XrayR-V2Board)
-- [Clash.Meta](https://github.com/MetaCubeX/Clash.Meta)
-  - [clashN](https://github.com/2dust/clashN)
-  - [Clash Meta for Android](https://github.com/MetaCubeX/ClashMetaForAndroid)
-- [sing-box](https://github.com/SagerNet/sing-box)
-
-## Contributing
-
-[Code of Conduct](https://github.com/XTLS/Xray-core/blob/main/CODE_OF_CONDUCT.md)
-
-## Credits
-
-- [Xray-core v1.0.0](https://github.com/XTLS/Xray-core/releases/tag/v1.0.0) was forked from [v2fly-core 9a03cc5](https://github.com/v2fly/v2ray-core/commit/9a03cc5c98d04cc28320fcee26dbc236b3291256), and we have made & accumulated a huge number of enhancements over time, check [the release notes for each version](https://github.com/XTLS/Xray-core/releases).
-- For third-party projects used in [Xray-core](https://github.com/XTLS/Xray-core), check your local or [the latest go.mod](https://github.com/XTLS/Xray-core/blob/main/go.mod).
-
-## Compilation
-
-### Windows (PowerShell)
-
-```powershell
-$env:CGO_ENABLED=0
-go build -o xray.exe -trimpath -ldflags "-s -w -buildid=" ./main
-```
-
-### Linux / macOS
-
-```bash
-CGO_ENABLED=0 go build -o xray -trimpath -ldflags "-s -w -buildid=" ./main
-```
-
-### Reproducible Releases
-
-```bash
-make
-```
-
 ## Stargazers over time
 
 [![Stargazers over time](https://starchart.cc/XTLS/Xray-core.svg)](https://starchart.cc/XTLS/Xray-core)

app/commander/commander.go

@@ -1,16 +1,18 @@
 package commander
 
+//go:generate go run github.com/xtls/xray-core/common/errors/errorgen
+
 import (
 	"context"
 	"net"
 	"sync"
 
+	"google.golang.org/grpc"
+
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/signal/done"
 	core "github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/outbound"
-	"google.golang.org/grpc"
 )
 
 // Commander is a Xray feature that provides gRPC methods to external clients.
@@ -20,14 +22,12 @@ type Commander struct {
 	services []Service
 	ohm      outbound.Manager
 	tag      string
-	listen   string
 }
 
 // NewCommander creates a new Commander based on the given config.
 func NewCommander(ctx context.Context, config *Config) (*Commander, error) {
 	c := &Commander{
 		tag: config.Tag,
-		listen: config.Listen,
 	}
 
 	common.Must(core.RequireFeatures(ctx, func(om outbound.Manager) {
@@ -45,7 +45,7 @@ func NewCommander(ctx context.Context, config *Config) (*Commander, error) {
 		}
 		service, ok := rawService.(Service)
 		if !ok {
-			return nil, errors.New("not a Service.")
+			return nil, newError("not a Service.")
 		}
 		c.services = append(c.services, service)
 	}
@@ -67,32 +67,19 @@ func (c *Commander) Start() error {
 	}
 	c.Unlock()
 
-	var listen = func(listener net.Listener) {
-		if err := c.server.Serve(listener); err != nil {
-			errors.LogErrorInner(context.Background(), err, "failed to start grpc server")
-		}
-	}
-
-	if len(c.listen) > 0 {
-		if l, err := net.Listen("tcp", c.listen); err != nil {
-			errors.LogErrorInner(context.Background(), err, "API server failed to listen on ", c.listen)
-			return err
-		} else {
-			errors.LogInfo(context.Background(), "API server listening on ", l.Addr())
-			go listen(l)
-		}
-		return nil
-	}
-
 	listener := &OutboundListener{
 		buffer: make(chan net.Conn, 4),
 		done:   done.New(),
 	}
 
-	go listen(listener)
+	go func() {
+		if err := c.server.Serve(listener); err != nil {
+			newError("failed to start grpc server").Base(err).AtError().WriteToLog()
+		}
+	}()
 
 	if err := c.ohm.RemoveHandler(context.Background(), c.tag); err != nil {
-		errors.LogInfoInner(context.Background(), err, "failed to remove existing handler")
+		newError("failed to remove existing handler").WriteToLog()
 	}
 
 	return c.ohm.AddHandler(context.Background(), &Outbound{

app/commander/config.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.35.1
+// 	protoc-gen-go v1.25.0
-// 	protoc        v5.28.2
+// 	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
@@ -29,8 +34,6 @@ type Config struct {
 
 	// Tag of the outbound handler that handles grpc connections.
 	Tag string `protobuf:"bytes,1,opt,name=tag,proto3" json:"tag,omitempty"`
-	// Network address of commander grpc service.
-	Listen string `protobuf:"bytes,3,opt,name=listen,proto3" json:"listen,omitempty"`
 	// Services that supported by this server. All services must implement Service
 	// interface.
 	Service []*serial.TypedMessage `protobuf:"bytes,2,rep,name=service,proto3" json:"service,omitempty"`
@@ -38,9 +41,11 @@ type Config struct {
 
 func (x *Config) Reset() {
 	*x = Config{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_commander_config_proto_msgTypes[0]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *Config) String() string {
@@ -51,7 +56,7 @@ func (*Config) ProtoMessage() {}
 
 func (x *Config) ProtoReflect() protoreflect.Message {
 	mi := &file_app_commander_config_proto_msgTypes[0]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -73,13 +78,6 @@ func (x *Config) GetTag() string {
 	return ""
 }
 
-func (x *Config) GetListen() string {
-	if x != nil {
-		return x.Listen
-	}
-	return ""
-}
-
 func (x *Config) GetService() []*serial.TypedMessage {
 	if x != nil {
 		return x.Service
@@ -96,9 +94,11 @@ type ReflectionConfig struct {
 
 func (x *ReflectionConfig) Reset() {
 	*x = ReflectionConfig{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_commander_config_proto_msgTypes[1]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *ReflectionConfig) String() string {
@@ -109,7 +109,7 @@ func (*ReflectionConfig) ProtoMessage() {}
 
 func (x *ReflectionConfig) ProtoReflect() protoreflect.Message {
 	mi := &file_app_commander_config_proto_msgTypes[1]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -132,21 +132,20 @@ var file_app_commander_config_proto_rawDesc = []byte{
 	0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x65, 0x72,
 	0x1a, 0x21, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2f, 0x73, 0x65, 0x72, 0x69, 0x61, 0x6c, 0x2f,
 	0x74, 0x79, 0x70, 0x65, 0x64, 0x5f, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x2e, 0x70, 0x72,
-	0x6f, 0x74, 0x6f, 0x22, 0x6e, 0x0a, 0x06, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x10, 0x0a,
+	0x6f, 0x74, 0x6f, 0x22, 0x56, 0x0a, 0x06, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x10, 0x0a,
 	0x03, 0x74, 0x61, 0x67, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03, 0x74, 0x61, 0x67, 0x12,
-	0x16, 0x0a, 0x06, 0x6c, 0x69, 0x73, 0x74, 0x65, 0x6e, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09, 0x52,
+	0x3a, 0x0a, 0x07, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x18, 0x02, 0x20, 0x03, 0x28, 0x0b,
-	0x06, 0x6c, 0x69, 0x73, 0x74, 0x65, 0x6e, 0x12, 0x3a, 0x0a, 0x07, 0x73, 0x65, 0x72, 0x76, 0x69,
+	0x32, 0x20, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x73,
-	0x63, 0x65, 0x18, 0x02, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x20, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e,
+	0x65, 0x72, 0x69, 0x61, 0x6c, 0x2e, 0x54, 0x79, 0x70, 0x65, 0x64, 0x4d, 0x65, 0x73, 0x73, 0x61,
-	0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x73, 0x65, 0x72, 0x69, 0x61, 0x6c, 0x2e, 0x54, 0x79,
+	0x67, 0x65, 0x52, 0x07, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x22, 0x12, 0x0a, 0x10, 0x52,
-	0x70, 0x65, 0x64, 0x4d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x52, 0x07, 0x73, 0x65, 0x72, 0x76,
+	0x65, 0x66, 0x6c, 0x65, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x42,
-	0x69, 0x63, 0x65, 0x22, 0x12, 0x0a, 0x10, 0x52, 0x65, 0x66, 0x6c, 0x65, 0x63, 0x74, 0x69, 0x6f,
+	0x58, 0x0a, 0x16, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e,
-	0x6e, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x42, 0x58, 0x0a, 0x16, 0x63, 0x6f, 0x6d, 0x2e, 0x78,
+	0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x65, 0x72, 0x50, 0x01, 0x5a, 0x27, 0x67, 0x69, 0x74,
-	0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x65,
+	0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61,
-	0x72, 0x50, 0x01, 0x5a, 0x27, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f,
+	0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x61, 0x70, 0x70, 0x2f, 0x63, 0x6f, 0x6d, 0x6d, 0x61,
-	0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x61,
+	0x6e, 0x64, 0x65, 0x72, 0xaa, 0x02, 0x12, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e,
-	0x70, 0x70, 0x2f, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x65, 0x72, 0xaa, 0x02, 0x12, 0x58,
+	0x43, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x65, 0x72, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f,
-	0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x43, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x65,
+	0x33,
-	0x72, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -162,7 +161,7 @@ func file_app_commander_config_proto_rawDescGZIP() []byte {
 }
 
 var file_app_commander_config_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
-var file_app_commander_config_proto_goTypes = []any{
+var file_app_commander_config_proto_goTypes = []interface{}{
 	(*Config)(nil),              // 0: xray.app.commander.Config
 	(*ReflectionConfig)(nil),    // 1: xray.app.commander.ReflectionConfig
 	(*serial.TypedMessage)(nil), // 2: xray.common.serial.TypedMessage
@@ -181,6 +180,32 @@ func file_app_commander_config_proto_init() {
 	if File_app_commander_config_proto != nil {
 		return
 	}
+	if !protoimpl.UnsafeEnabled {
+		file_app_commander_config_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Config); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_commander_config_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*ReflectionConfig); 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{

app/commander/config.proto

@@ -12,10 +12,6 @@ import "common/serial/typed_message.proto";
 message Config {
   // Tag of the outbound handler that handles grpc connections.
   string tag = 1;
-
-  // Network address of commander grpc service.
-  string listen = 3;
-
   // Services that supported by this server. All services must implement Service
   // interface.
   repeated xray.common.serial.TypedMessage service = 2;

app/commander/errors.generated.go

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

app/commander/outbound.go

@@ -5,7 +5,6 @@ import (
 	"sync"
 
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/net/cnc"
 	"github.com/xtls/xray-core/common/signal/done"
@@ -32,13 +31,13 @@ func (l *OutboundListener) add(conn net.Conn) {
 func (l *OutboundListener) Accept() (net.Conn, error) {
 	select {
 	case <-l.done.Wait():
-		return nil, errors.New("listen closed")
+		return nil, newError("listen closed")
 	case c := <-l.buffer:
 		return c, nil
 	}
 }
 
-// Close implements net.Listener.
+// Close implement net.Listener.
 func (l *OutboundListener) Close() error {
 	common.Must(l.done.Close())
 L:

app/dispatcher/config.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.35.1
+// 	protoc-gen-go v1.25.0
-// 	protoc        v5.28.2
+// 	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
@@ -28,9 +33,11 @@ type SessionConfig struct {
 
 func (x *SessionConfig) Reset() {
 	*x = SessionConfig{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_dispatcher_config_proto_msgTypes[0]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *SessionConfig) String() string {
@@ -41,7 +48,7 @@ func (*SessionConfig) ProtoMessage() {}
 
 func (x *SessionConfig) ProtoReflect() protoreflect.Message {
 	mi := &file_app_dispatcher_config_proto_msgTypes[0]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -66,9 +73,11 @@ type Config struct {
 
 func (x *Config) Reset() {
 	*x = Config{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_dispatcher_config_proto_msgTypes[1]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *Config) String() string {
@@ -79,7 +88,7 @@ func (*Config) ProtoMessage() {}
 
 func (x *Config) ProtoReflect() protoreflect.Message {
 	mi := &file_app_dispatcher_config_proto_msgTypes[1]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -135,7 +144,7 @@ func file_app_dispatcher_config_proto_rawDescGZIP() []byte {
 }
 
 var file_app_dispatcher_config_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
-var file_app_dispatcher_config_proto_goTypes = []any{
+var file_app_dispatcher_config_proto_goTypes = []interface{}{
 	(*SessionConfig)(nil), // 0: xray.app.dispatcher.SessionConfig
 	(*Config)(nil),        // 1: xray.app.dispatcher.Config
 }
@@ -153,6 +162,32 @@ func file_app_dispatcher_config_proto_init() {
 	if File_app_dispatcher_config_proto != nil {
 		return
 	}
+	if !protoimpl.UnsafeEnabled {
+		file_app_dispatcher_config_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*SessionConfig); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_dispatcher_config_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Config); 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{

app/dispatcher/default.go

@@ -1,15 +1,15 @@
 package dispatcher
 
+//go:generate go run github.com/xtls/xray-core/common/errors/errorgen
+
 import (
 	"context"
-	"regexp"
 	"strings"
 	"sync"
 	"time"
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
-	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/log"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/protocol"
@@ -25,7 +25,9 @@ import (
 	"github.com/xtls/xray-core/transport/pipe"
 )
 
-var errSniffingTimeout = errors.New("timeout on sniffing")
+var (
+	errSniffingTimeout = newError("timeout on sniffing")
+)
 
 type cachedReader struct {
 	sync.Mutex
@@ -39,14 +41,8 @@ func (r *cachedReader) Cache(b *buf.Buffer) {
 	if !mb.IsEmpty() {
 		r.cache, _ = buf.MergeMulti(r.cache, mb)
 	}
-	cacheLen := r.cache.Len()
-	if cacheLen <= b.Cap() {
 	b.Clear()
-	} else {
+	rawBytes := b.Extend(buf.Size)
-		b.Release()
-		*b = *buf.NewWithSize(cacheLen)
-	}
-	rawBytes := b.Extend(cacheLen)
 	n := r.cache.Copy(rawBytes)
 	b.Resize(0, int32(n))
 	r.Unlock()
@@ -98,18 +94,13 @@ type DefaultDispatcher struct {
 	router routing.Router
 	policy policy.Manager
 	stats  stats.Manager
-	dns    dns.Client
-	fdns   dns.FakeDNSEngine
 }
 
 func init() {
 	common.Must(common.RegisterConfig((*Config)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
 		d := new(DefaultDispatcher)
-		if err := core.RequireFeatures(ctx, func(om outbound.Manager, router routing.Router, pm policy.Manager, sm stats.Manager, dc dns.Client) error {
+		if err := core.RequireFeatures(ctx, func(om outbound.Manager, router routing.Router, pm policy.Manager, sm stats.Manager) error {
-			core.RequireFeatures(ctx, func(fdns dns.FakeDNSEngine) {
+			return d.Init(config.(*Config), om, router, pm, sm)
-				d.fdns = fdns
-			})
-			return d.Init(config.(*Config), om, router, pm, sm, dc)
 		}); err != nil {
 			return nil, err
 		}
@@ -118,12 +109,11 @@ func init() {
 }
 
 // Init initializes DefaultDispatcher.
-func (d *DefaultDispatcher) Init(config *Config, om outbound.Manager, router routing.Router, pm policy.Manager, sm stats.Manager, dns dns.Client) error {
+func (d *DefaultDispatcher) Init(config *Config, om outbound.Manager, router routing.Router, pm policy.Manager, sm stats.Manager) error {
 	d.ohm = om
 	d.router = router
 	d.policy = pm
 	d.stats = sm
-	d.dns = dns
 	return nil
 }
 
@@ -186,46 +176,30 @@ func (d *DefaultDispatcher) getLink(ctx context.Context) (*transport.Link, *tran
 	return inboundLink, outboundLink
 }
 
-func (d *DefaultDispatcher) shouldOverride(ctx context.Context, result SniffResult, request session.SniffingRequest, destination net.Destination) bool {
+func shouldOverride(ctx context.Context, result SniffResult, request session.SniffingRequest, destination net.Destination) bool {
 	domain := result.Domain()
-	if domain == "" {
-		return false
-	}
 	for _, d := range request.ExcludeForDomain {
-		if strings.HasPrefix(d, "regexp:") {
+		if domain == d {
-			pattern := d[7:]
-			re, err := regexp.Compile(pattern)
-			if err != nil {
-				errors.LogInfo(ctx, "Unable to compile regex")
-				continue
-			}
-			if re.MatchString(domain) {
-				return false
-			}
-		} else {
-			if strings.ToLower(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()
 	}
 	for _, p := range request.OverrideDestinationForProtocol {
-		if strings.HasPrefix(protocolString, p) || strings.HasPrefix(p, protocolString) {
+		if strings.HasPrefix(protocolString, p) {
 			return true
 		}
-		if fkr0, ok := d.fdns.(dns.FakeDNSEngineRev0); ok && protocolString != "bittorrent" && p == "fakedns" &&
+		if fakeDNSEngine != nil && protocolString != "bittorrent" && p == "fakedns" &&
-			fkr0.IsIPInIPPool(destination.Address) {
+			destination.Address.Family().IsIP() && fakeDNSEngine.GetFakeIPRange().Contains(destination.Address.IP()) {
-			errors.LogInfo(ctx, "Using sniffer ", protocolString, " since the fake DNS missed")
+			newError("Using sniffer ", protocolString, " since the fake DNS missed").WriteToLog(session.ExportIDToError(ctx))
 			return true
 		}
-		if resultSubset, ok := result.(SnifferIsProtoSubsetOf); ok {
-			if resultSubset.IsProtoSubsetOf(p) {
-				return true
-			}
-		}
 	}
 
 	return false
@@ -236,113 +210,57 @@ func (d *DefaultDispatcher) Dispatch(ctx context.Context, destination net.Destin
 	if !destination.IsValid() {
 		panic("Dispatcher: Invalid destination.")
 	}
-	outbounds := session.OutboundsFromContext(ctx)
+	ob := &session.Outbound{
-	if len(outbounds) == 0 {
+		Target: destination,
-		outbounds = []*session.Outbound{{}}
-		ctx = session.ContextWithOutbounds(ctx, outbounds)
 	}
-	ob := outbounds[len(outbounds)-1]
+	ctx = session.ContextWithOutbound(ctx, ob)
-	ob.OriginalTarget = destination
+
-	ob.Target = destination
+	inbound, outbound := d.getLink(ctx)
 	content := session.ContentFromContext(ctx)
 	if content == nil {
 		content = new(session.Content)
 		ctx = session.ContextWithContent(ctx, content)
 	}
-
 	sniffingRequest := content.SniffingRequest
-	inbound, outbound := d.getLink(ctx)
+	switch {
-	if !sniffingRequest.Enabled {
+	case !sniffingRequest.Enabled:
 		go d.routedDispatch(ctx, outbound, destination)
-	} else {
+	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:
 		go func() {
 			cReader := &cachedReader{
 				reader: outbound.Reader.(*pipe.Reader),
 			}
 			outbound.Reader = cReader
-			result, err := sniffer(ctx, cReader, sniffingRequest.MetadataOnly, destination.Network)
+			result, err := sniffer(ctx, cReader, sniffingRequest.MetadataOnly)
 			if err == nil {
 				content.Protocol = result.Protocol()
 			}
-			if err == nil && d.shouldOverride(ctx, result, sniffingRequest, destination) {
+			if err == nil && shouldOverride(ctx, result, sniffingRequest, destination) {
 				domain := result.Domain()
-				errors.LogInfo(ctx, "sniffed domain: ", domain)
+				newError("sniffed domain: ", domain).WriteToLog(session.ExportIDToError(ctx))
 				destination.Address = net.ParseAddress(domain)
-				protocol := result.Protocol()
-				if resComp, ok := result.(SnifferResultComposite); ok {
-					protocol = resComp.ProtocolForDomainResult()
-				}
-				isFakeIP := false
-				if fkr0, ok := d.fdns.(dns.FakeDNSEngineRev0); ok && fkr0.IsIPInIPPool(ob.Target.Address) {
-					isFakeIP = true
-				}
-				if sniffingRequest.RouteOnly && protocol != "fakedns" && protocol != "fakedns+others" && !isFakeIP {
-					ob.RouteTarget = destination
-				} else {
 				ob.Target = destination
 			}
-			}
 			d.routedDispatch(ctx, outbound, destination)
 		}()
 	}
 	return inbound, nil
 }
 
-// DispatchLink implements routing.Dispatcher.
+func sniffer(ctx context.Context, cReader *cachedReader, metadataOnly bool) (SniffResult, error) {
-func (d *DefaultDispatcher) DispatchLink(ctx context.Context, destination net.Destination, outbound *transport.Link) error {
-	if !destination.IsValid() {
-		return errors.New("Dispatcher: Invalid destination.")
-	}
-	outbounds := session.OutboundsFromContext(ctx)
-	if len(outbounds) == 0 {
-		outbounds = []*session.Outbound{{}}
-		ctx = session.ContextWithOutbounds(ctx, outbounds)
-	}
-	ob := outbounds[len(outbounds)-1]
-	ob.OriginalTarget = destination
-	ob.Target = destination
-	content := session.ContentFromContext(ctx)
-	if content == nil {
-		content = new(session.Content)
-		ctx = session.ContextWithContent(ctx, content)
-	}
-	sniffingRequest := content.SniffingRequest
-	if !sniffingRequest.Enabled {
-		d.routedDispatch(ctx, outbound, destination)
-	} else {
-		cReader := &cachedReader{
-			reader: outbound.Reader.(*pipe.Reader),
-		}
-		outbound.Reader = cReader
-		result, err := sniffer(ctx, cReader, sniffingRequest.MetadataOnly, destination.Network)
-		if err == nil {
-			content.Protocol = result.Protocol()
-		}
-		if err == nil && d.shouldOverride(ctx, result, sniffingRequest, destination) {
-			domain := result.Domain()
-			errors.LogInfo(ctx, "sniffed domain: ", domain)
-			destination.Address = net.ParseAddress(domain)
-			protocol := result.Protocol()
-			if resComp, ok := result.(SnifferResultComposite); ok {
-				protocol = resComp.ProtocolForDomainResult()
-			}
-			isFakeIP := false
-			if fkr0, ok := d.fdns.(dns.FakeDNSEngineRev0); ok && fkr0.IsIPInIPPool(ob.Target.Address) {
-				isFakeIP = true
-			}
-			if sniffingRequest.RouteOnly && protocol != "fakedns" && protocol != "fakedns+others" && !isFakeIP {
-				ob.RouteTarget = destination
-			} else {
-				ob.Target = destination
-			}
-		}
-		d.routedDispatch(ctx, outbound, destination)
-	}
-
-	return nil
-}
-
-func sniffer(ctx context.Context, cReader *cachedReader, metadataOnly bool, network net.Network) (SniffResult, error) {
 	payload := buf.New()
 	defer payload.Release()
 
@@ -368,7 +286,7 @@ func sniffer(ctx context.Context, cReader *cachedReader, metadataOnly bool, netw
 
 				cReader.Cache(payload)
 				if !payload.IsEmpty() {
-					result, err := sniffer.Sniff(ctx, payload.Bytes(), network)
+					result, err := sniffer.Sniff(ctx, payload.Bytes())
 					if err != common.ErrNoClue {
 						return result, err
 					}
@@ -387,55 +305,25 @@ func sniffer(ctx context.Context, cReader *cachedReader, metadataOnly bool, netw
 	}
 	return contentResult, contentErr
 }
-func (d *DefaultDispatcher) routedDispatch(ctx context.Context, link *transport.Link, destination net.Destination) {
-	outbounds := session.OutboundsFromContext(ctx)
-	ob := outbounds[len(outbounds)-1]
-	if hosts, ok := d.dns.(dns.HostsLookup); ok && destination.Address.Family().IsDomain() {
-		proxied := hosts.LookupHosts(ob.Target.String())
-		if proxied != nil {
-			ro := ob.RouteTarget == destination
-			destination.Address = *proxied
-			if ro {
-				ob.RouteTarget = destination
-			} else {
-				ob.Target = destination
-			}
-		}
-	}
 
+func (d *DefaultDispatcher) routedDispatch(ctx context.Context, link *transport.Link, destination net.Destination) {
 	var handler outbound.Handler
 
 	routingLink := routing_session.AsRoutingContext(ctx)
 	inTag := routingLink.GetInboundTag()
-	isPickRoute := 0
+	isPickRoute := false
-	if forcedOutboundTag := session.GetForcedOutboundTagFromContext(ctx); forcedOutboundTag != "" {
+	if d.router != nil {
-		ctx = session.SetForcedOutboundTagToContext(ctx, "")
-		if h := d.ohm.GetHandler(forcedOutboundTag); h != nil {
-			isPickRoute = 1
-			errors.LogInfo(ctx, "taking platform initialized detour [", forcedOutboundTag, "] for [", destination, "]")
-			handler = h
-		} else {
-			errors.LogError(ctx, "non existing tag for platform initialized detour: ", forcedOutboundTag)
-			common.Close(link.Writer)
-			common.Interrupt(link.Reader)
-			return
-		}
-	} else if d.router != nil {
 		if route, err := d.router.PickRoute(routingLink); err == nil {
 			outTag := route.GetOutboundTag()
+			isPickRoute = true
 			if h := d.ohm.GetHandler(outTag); h != nil {
-				isPickRoute = 2
+				newError("taking detour [", outTag, "] for [", destination, "]").WriteToLog(session.ExportIDToError(ctx))
-				if route.GetRuleTag() == "" {
-					errors.LogInfo(ctx, "taking detour [", outTag, "] for [", destination, "]")
-				} else {
-					errors.LogInfo(ctx, "Hit route rule: [", route.GetRuleTag(), "] so taking detour [", outTag, "] for [", destination, "]")
-				}
 				handler = h
 			} else {
-				errors.LogWarning(ctx, "non existing outTag: ", outTag)
+				newError("non existing outTag: ", outTag).AtWarning().WriteToLog(session.ExportIDToError(ctx))
 			}
 		} else {
-			errors.LogInfo(ctx, "default route for ", destination)
+			newError("default route for ", destination).WriteToLog(session.ExportIDToError(ctx))
 		}
 	}
 
@@ -444,23 +332,26 @@ func (d *DefaultDispatcher) routedDispatch(ctx context.Context, link *transport.
 	}
 
 	if handler == nil {
-		errors.LogInfo(ctx, "default outbound handler not exist")
+		newError("default outbound handler not exist").WriteToLog(session.ExportIDToError(ctx))
 		common.Close(link.Writer)
 		common.Interrupt(link.Reader)
 		return
 	}
 
-	ob.Tag = handler.Tag()
 	if accessMessage := log.AccessMessageFromContext(ctx); accessMessage != nil {
 		if tag := handler.Tag(); tag != "" {
-			if inTag == "" {
+			if isPickRoute {
-				accessMessage.Detour = tag
+				if inTag != "" {
-			} else if isPickRoute == 1 {
-				accessMessage.Detour = inTag + " ==> " + tag
-			} else if isPickRoute == 2 {
 					accessMessage.Detour = inTag + " -> " + tag
 				} else {
+					accessMessage.Detour = tag
+				}
+			} else {
+				if inTag != "" {
 					accessMessage.Detour = inTag + " >> " + tag
+				} else {
+					accessMessage.Detour = tag
+				}
 			}
 		}
 		log.Record(accessMessage)

app/dispatcher/dispatcher.go

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

app/dispatcher/errors.generated.go

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

app/dispatcher/fakednssniffer.go

@@ -2,49 +2,36 @@ package dispatcher
 
 import (
 	"context"
-	"strings"
 
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/errors"
 	"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 Creates a Fake DNS metadata sniffer
+// 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) {
-		fakeDNSEngineFeat := core.MustFromContext(ctx).GetFeature((*dns.FakeDNSEngine)(nil))
+		fakeDNSEngine = fdns
-		if fakeDNSEngineFeat != nil {
+	})
-			fakeDNSEngine = fakeDNSEngineFeat.(dns.FakeDNSEngine)
+	if err != nil {
+		return protocolSnifferWithMetadata{}, err
 	}
-	}
-
 	if fakeDNSEngine == nil {
-		errNotInit := errors.New("FakeDNSEngine is not initialized, but such a sniffer is used").AtError()
+		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) {
-		outbounds := session.OutboundsFromContext(ctx)
+		Target := session.OutboundFromContext(ctx).Target
-		ob := outbounds[len(outbounds) - 1]
+		if Target.Network == net.Network_TCP || Target.Network == net.Network_UDP {
-		if ob.Target.Network == net.Network_TCP || ob.Target.Network == net.Network_UDP {
+			domainFromFakeDNS := fakeDNSEngine.GetDomainFromFakeDNS(Target.Address)
-			domainFromFakeDNS := fakeDNSEngine.GetDomainFromFakeDNS(ob.Target.Address)
 			if domainFromFakeDNS != "" {
-				errors.LogInfo(ctx, "fake dns got domain: ", domainFromFakeDNS, " for ip: ", ob.Target.Address.String())
+				newError("fake dns got domain: ", domainFromFakeDNS, " for ip: ", Target.Address.String()).WriteToLog(session.ExportIDToError(ctx))
 				return &fakeDNSSniffResult{domainName: domainFromFakeDNS}, nil
 			}
 		}
-
-		if ipAddressInRangeValueI := ctx.Value(ipAddressInRange); ipAddressInRangeValueI != nil {
-			ipAddressInRangeValue := ipAddressInRangeValueI.(*ipAddressInRangeOpt)
-			if fkr0, ok := fakeDNSEngine.(dns.FakeDNSEngineRev0); ok {
-				inPool := fkr0.IsIPInIPPool(ob.Target.Address)
-				ipAddressInRangeValue.addressInRange = &inPool
-			}
-		}
-
 		return nil, common.ErrNoClue
 	}, metadataSniffer: true}, nil
 }
@@ -60,62 +47,3 @@ func (fakeDNSSniffResult) Protocol() string {
 func (f fakeDNSSniffResult) Domain() string {
 	return f.domainName
 }
-
-type fakeDNSExtraOpts int
-
-const ipAddressInRange fakeDNSExtraOpts = 1
-
-type ipAddressInRangeOpt struct {
-	addressInRange *bool
-}
-
-type DNSThenOthersSniffResult struct {
-	domainName           string
-	protocolOriginalName string
-}
-
-func (f DNSThenOthersSniffResult) IsProtoSubsetOf(protocolName string) bool {
-	return strings.HasPrefix(protocolName, f.protocolOriginalName)
-}
-
-func (DNSThenOthersSniffResult) Protocol() string {
-	return "fakedns+others"
-}
-
-func (f DNSThenOthersSniffResult) Domain() string {
-	return f.domainName
-}
-
-func newFakeDNSThenOthers(ctx context.Context, fakeDNSSniffer protocolSnifferWithMetadata, others []protocolSnifferWithMetadata) (
-	protocolSnifferWithMetadata, error,
-) { // nolint: unparam
-	// ctx may be used in the future
-	_ = ctx
-	return protocolSnifferWithMetadata{
-		protocolSniffer: func(ctx context.Context, bytes []byte) (SniffResult, error) {
-			ipAddressInRangeValue := &ipAddressInRangeOpt{}
-			ctx = context.WithValue(ctx, ipAddressInRange, ipAddressInRangeValue)
-			result, err := fakeDNSSniffer.protocolSniffer(ctx, bytes)
-			if err == nil {
-				return result, nil
-			}
-			if ipAddressInRangeValue.addressInRange != nil {
-				if *ipAddressInRangeValue.addressInRange {
-					for _, v := range others {
-						if v.metadataSniffer || bytes != nil {
-							if result, err := v.protocolSniffer(ctx, bytes); err == nil {
-								return DNSThenOthersSniffResult{domainName: result.Domain(), protocolOriginalName: result.Protocol()}, nil
-							}
-						}
-					}
-					return nil, common.ErrNoClue
-				}
-				errors.LogDebug(ctx, "ip address not in fake dns range, return as is")
-				return nil, common.ErrNoClue
-			}
-			errors.LogWarning(ctx, "fake dns sniffer did not set address in range option, assume false.")
-			return nil, common.ErrNoClue
-		},
-		metadataSniffer: false,
-	}, nil
-}

app/dispatcher/sniffer.go

@@ -4,11 +4,8 @@ import (
 	"context"
 
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/errors"
-	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/protocol/bittorrent"
 	"github.com/xtls/xray-core/common/protocol/http"
-	"github.com/xtls/xray-core/common/protocol/quic"
 	"github.com/xtls/xray-core/common/protocol/tls"
 )
 
@@ -25,7 +22,6 @@ type protocolSnifferWithMetadata struct {
 	// 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
-	network         net.Network
 }
 
 type Sniffer struct {
@@ -35,31 +31,24 @@ type Sniffer struct {
 func NewSniffer(ctx context.Context) *Sniffer {
 	ret := &Sniffer{
 		sniffer: []protocolSnifferWithMetadata{
-			{func(c context.Context, b []byte) (SniffResult, error) { return http.SniffHTTP(b, c) }, false, net.Network_TCP},
+			{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, net.Network_TCP},
+			{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, net.Network_TCP},
+			{func(c context.Context, b []byte) (SniffResult, error) { return bittorrent.SniffBittorrent(b) }, false},
-			{func(c context.Context, b []byte) (SniffResult, error) { return quic.SniffQUIC(b) }, false, net.Network_UDP},
-			{func(c context.Context, b []byte) (SniffResult, error) { return bittorrent.SniffUTP(b) }, false, net.Network_UDP},
 		},
 	}
 	if sniffer, err := newFakeDNSSniffer(ctx); err == nil {
-		others := ret.sniffer
 		ret.sniffer = append(ret.sniffer, sniffer)
-		fakeDNSThenOthers, err := newFakeDNSThenOthers(ctx, sniffer, others)
-		if err == nil {
-			ret.sniffer = append([]protocolSnifferWithMetadata{fakeDNSThenOthers}, ret.sniffer...)
-		}
 	}
 	return ret
 }
 
-var errUnknownContent = errors.New("unknown content")
+var errUnknownContent = newError("unknown content")
 
-func (s *Sniffer) Sniff(c context.Context, payload []byte, network net.Network) (SniffResult, error) {
+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 || si.network != network {
+		if si.metadataSniffer {
 			continue
 		}
 		result, err := s(c, payload)
@@ -132,7 +121,3 @@ func (c compositeResult) ProtocolForDomainResult() string {
 type SnifferResultComposite interface {
 	ProtocolForDomainResult() string
 }
-
-type SnifferIsProtoSubsetOf interface {
-	IsProtoSubsetOf(protocolName string) bool
-}

app/dns/config.go

@@ -1,7 +1,6 @@
 package dns
 
 import (
-	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/strmatcher"
 	"github.com/xtls/xray-core/common/uuid"
@@ -37,11 +36,11 @@ var localTLDsAndDotlessDomainsRule = &NameServer_OriginalRule{
 func toStrMatcher(t DomainMatchingType, domain string) (strmatcher.Matcher, error) {
 	strMType, f := typeMap[t]
 	if !f {
-		return nil, errors.New("unknown mapping type", t).AtWarning()
+		return nil, newError("unknown mapping type", t).AtWarning()
 	}
 	matcher, err := strMType.New(domain)
 	if err != nil {
-		return nil, errors.New("failed to create str matcher").Base(err)
+		return nil, newError("failed to create str matcher").Base(err)
 	}
 	return matcher, nil
 }
@@ -52,7 +51,7 @@ func toNetIP(addrs []net.Address) ([]net.IP, error) {
 		if addr.Family().IsIP() {
 			ips = append(ips, addr.IP())
 		} else {
-			return nil, errors.New("Failed to convert address", addr, "to Net IP.").AtWarning()
+			return nil, newError("Failed to convert address", addr, "to Net IP.").AtWarning()
 		}
 	}
 	return ips, nil

app/dns/config.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.35.1
+// 	protoc-gen-go v1.25.0
-// 	protoc        v5.28.2
+// 	protoc        v3.15.8
 // 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 (
@@ -123,6 +128,55 @@ func (QueryStrategy) EnumDescriptor() ([]byte, []int) {
 	return file_app_dns_config_proto_rawDescGZIP(), []int{1}
 }
 
+type CacheStrategy int32
+
+const (
+	CacheStrategy_Cache_ALL     CacheStrategy = 0
+	CacheStrategy_Cache_NOERROR CacheStrategy = 1
+	CacheStrategy_Cache_DISABLE CacheStrategy = 2
+)
+
+// Enum value maps for CacheStrategy.
+var (
+	CacheStrategy_name = map[int32]string{
+		0: "Cache_ALL",
+		1: "Cache_NOERROR",
+		2: "Cache_DISABLE",
+	}
+	CacheStrategy_value = map[string]int32{
+		"Cache_ALL":     0,
+		"Cache_NOERROR": 1,
+		"Cache_DISABLE": 2,
+	}
+)
+
+func (x CacheStrategy) Enum() *CacheStrategy {
+	p := new(CacheStrategy)
+	*p = x
+	return p
+}
+
+func (x CacheStrategy) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (CacheStrategy) Descriptor() protoreflect.EnumDescriptor {
+	return file_app_dns_config_proto_enumTypes[2].Descriptor()
+}
+
+func (CacheStrategy) Type() protoreflect.EnumType {
+	return &file_app_dns_config_proto_enumTypes[2]
+}
+
+func (x CacheStrategy) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Use CacheStrategy.Descriptor instead.
+func (CacheStrategy) EnumDescriptor() ([]byte, []int) {
+	return file_app_dns_config_proto_rawDescGZIP(), []int{2}
+}
+
 type NameServer struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -134,14 +188,15 @@ type NameServer struct {
 	PrioritizedDomain []*NameServer_PriorityDomain `protobuf:"bytes,2,rep,name=prioritized_domain,json=prioritizedDomain,proto3" json:"prioritized_domain,omitempty"`
 	Geoip             []*router.GeoIP              `protobuf:"bytes,3,rep,name=geoip,proto3" json:"geoip,omitempty"`
 	OriginalRules     []*NameServer_OriginalRule   `protobuf:"bytes,4,rep,name=original_rules,json=originalRules,proto3" json:"original_rules,omitempty"`
-	QueryStrategy     QueryStrategy                `protobuf:"varint,7,opt,name=query_strategy,json=queryStrategy,proto3,enum=xray.app.dns.QueryStrategy" json:"query_strategy,omitempty"`
 }
 
 func (x *NameServer) Reset() {
 	*x = NameServer{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_dns_config_proto_msgTypes[0]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *NameServer) String() string {
@@ -152,7 +207,7 @@ func (*NameServer) ProtoMessage() {}
 
 func (x *NameServer) ProtoReflect() protoreflect.Message {
 	mi := &file_app_dns_config_proto_msgTypes[0]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -209,21 +264,24 @@ func (x *NameServer) GetOriginalRules() []*NameServer_OriginalRule {
 	return nil
 }
 
-func (x *NameServer) GetQueryStrategy() QueryStrategy {
-	if x != nil {
-		return x.QueryStrategy
-	}
-	return QueryStrategy_USE_IP
-}
-
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
+	// Nameservers used by this DNS. Only traditional UDP servers are support at
+	// the moment. A special value 'localhost' as a domain address can be set to
+	// use DNS on local system.
+	//
+	// Deprecated: Do not use.
+	NameServers []*net.Endpoint `protobuf:"bytes,1,rep,name=NameServers,proto3" json:"NameServers,omitempty"`
 	// NameServer list used by this DNS client.
-	// A special value 'localhost' as a domain address can be set to use DNS on local system.
 	NameServer []*NameServer `protobuf:"bytes,5,rep,name=name_server,json=nameServer,proto3" json:"name_server,omitempty"`
+	// Static hosts. Domain to IP.
+	// Deprecated. Use static_hosts.
+	//
+	// Deprecated: Do not use.
+	Hosts map[string]*net.IPOrDomain `protobuf:"bytes,2,rep,name=Hosts,proto3" json:"Hosts,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
 	// Client IP for EDNS client subnet. Must be 4 bytes (IPv4) or 16 bytes
 	// (IPv6).
 	ClientIp    []byte                `protobuf:"bytes,3,opt,name=client_ip,json=clientIp,proto3" json:"client_ip,omitempty"`
@@ -231,17 +289,18 @@ type Config struct {
 	// Tag is the inbound tag of DNS client.
 	Tag string `protobuf:"bytes,6,opt,name=tag,proto3" json:"tag,omitempty"`
 	// DisableCache disables DNS cache
-	DisableCache           bool          `protobuf:"varint,8,opt,name=disableCache,proto3" json:"disableCache,omitempty"`
+	CacheStrategy   CacheStrategy `protobuf:"varint,8,opt,name=cache_strategy,json=cacheStrategy,proto3,enum=xray.app.dns.CacheStrategy" json:"cache_strategy,omitempty"`
 	QueryStrategy   QueryStrategy `protobuf:"varint,9,opt,name=query_strategy,json=queryStrategy,proto3,enum=xray.app.dns.QueryStrategy" json:"query_strategy,omitempty"`
 	DisableFallback bool          `protobuf:"varint,10,opt,name=disableFallback,proto3" json:"disableFallback,omitempty"`
-	DisableFallbackIfMatch bool          `protobuf:"varint,11,opt,name=disableFallbackIfMatch,proto3" json:"disableFallbackIfMatch,omitempty"`
 }
 
 func (x *Config) Reset() {
 	*x = Config{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_dns_config_proto_msgTypes[1]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *Config) String() string {
@@ -252,7 +311,7 @@ func (*Config) ProtoMessage() {}
 
 func (x *Config) ProtoReflect() protoreflect.Message {
 	mi := &file_app_dns_config_proto_msgTypes[1]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -267,6 +326,14 @@ func (*Config) Descriptor() ([]byte, []int) {
 	return file_app_dns_config_proto_rawDescGZIP(), []int{1}
 }
 
+// Deprecated: Do not use.
+func (x *Config) GetNameServers() []*net.Endpoint {
+	if x != nil {
+		return x.NameServers
+	}
+	return nil
+}
+
 func (x *Config) GetNameServer() []*NameServer {
 	if x != nil {
 		return x.NameServer
@@ -274,6 +341,14 @@ func (x *Config) GetNameServer() []*NameServer {
 	return nil
 }
 
+// Deprecated: Do not use.
+func (x *Config) GetHosts() map[string]*net.IPOrDomain {
+	if x != nil {
+		return x.Hosts
+	}
+	return nil
+}
+
 func (x *Config) GetClientIp() []byte {
 	if x != nil {
 		return x.ClientIp
@@ -295,11 +370,11 @@ func (x *Config) GetTag() string {
 	return ""
 }
 
-func (x *Config) GetDisableCache() bool {
+func (x *Config) GetCacheStrategy() CacheStrategy {
 	if x != nil {
-		return x.DisableCache
+		return x.CacheStrategy
 	}
-	return false
+	return CacheStrategy_Cache_ALL
 }
 
 func (x *Config) GetQueryStrategy() QueryStrategy {
@@ -316,13 +391,6 @@ func (x *Config) GetDisableFallback() bool {
 	return false
 }
 
-func (x *Config) GetDisableFallbackIfMatch() bool {
-	if x != nil {
-		return x.DisableFallbackIfMatch
-	}
-	return false
-}
-
 type NameServer_PriorityDomain struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -334,9 +402,11 @@ type NameServer_PriorityDomain struct {
 
 func (x *NameServer_PriorityDomain) Reset() {
 	*x = NameServer_PriorityDomain{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_dns_config_proto_msgTypes[2]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *NameServer_PriorityDomain) String() string {
@@ -347,7 +417,7 @@ func (*NameServer_PriorityDomain) ProtoMessage() {}
 
 func (x *NameServer_PriorityDomain) ProtoReflect() protoreflect.Message {
 	mi := &file_app_dns_config_proto_msgTypes[2]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -387,9 +457,11 @@ type NameServer_OriginalRule struct {
 
 func (x *NameServer_OriginalRule) Reset() {
 	*x = NameServer_OriginalRule{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_dns_config_proto_msgTypes[3]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *NameServer_OriginalRule) String() string {
@@ -400,7 +472,7 @@ func (*NameServer_OriginalRule) ProtoMessage() {}
 
 func (x *NameServer_OriginalRule) ProtoReflect() protoreflect.Message {
 	mi := &file_app_dns_config_proto_msgTypes[3]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -444,9 +516,11 @@ type Config_HostMapping struct {
 
 func (x *Config_HostMapping) Reset() {
 	*x = Config_HostMapping{}
-	mi := &file_app_dns_config_proto_msgTypes[4]
+	if protoimpl.UnsafeEnabled {
+		mi := &file_app_dns_config_proto_msgTypes[5]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *Config_HostMapping) String() string {
@@ -456,8 +530,8 @@ func (x *Config_HostMapping) String() string {
 func (*Config_HostMapping) ProtoMessage() {}
 
 func (x *Config_HostMapping) ProtoReflect() protoreflect.Message {
-	mi := &file_app_dns_config_proto_msgTypes[4]
+	mi := &file_app_dns_config_proto_msgTypes[5]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -469,7 +543,7 @@ func (x *Config_HostMapping) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Config_HostMapping.ProtoReflect.Descriptor instead.
 func (*Config_HostMapping) Descriptor() ([]byte, []int) {
-	return file_app_dns_config_proto_rawDescGZIP(), []int{1, 0}
+	return file_app_dns_config_proto_rawDescGZIP(), []int{1, 1}
 }
 
 func (x *Config_HostMapping) GetType() DomainMatchingType {
@@ -505,92 +579,106 @@ var File_app_dns_config_proto protoreflect.FileDescriptor
 var file_app_dns_config_proto_rawDesc = []byte{
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 }
 
 var (
@@ -605,35 +693,41 @@ func file_app_dns_config_proto_rawDescGZIP() []byte {
 	return file_app_dns_config_proto_rawDescData
 }
 
-var file_app_dns_config_proto_enumTypes = make([]protoimpl.EnumInfo, 2)
+var file_app_dns_config_proto_enumTypes = make([]protoimpl.EnumInfo, 3)
-var file_app_dns_config_proto_msgTypes = make([]protoimpl.MessageInfo, 5)
+var file_app_dns_config_proto_msgTypes = make([]protoimpl.MessageInfo, 6)
-var file_app_dns_config_proto_goTypes = []any{
+var file_app_dns_config_proto_goTypes = []interface{}{
 	(DomainMatchingType)(0),           // 0: xray.app.dns.DomainMatchingType
 	(QueryStrategy)(0),                // 1: xray.app.dns.QueryStrategy
-	(*NameServer)(nil),                // 2: xray.app.dns.NameServer
+	(CacheStrategy)(0),                // 2: xray.app.dns.CacheStrategy
-	(*Config)(nil),                    // 3: xray.app.dns.Config
+	(*NameServer)(nil),                // 3: xray.app.dns.NameServer
-	(*NameServer_PriorityDomain)(nil), // 4: xray.app.dns.NameServer.PriorityDomain
+	(*Config)(nil),                    // 4: xray.app.dns.Config
-	(*NameServer_OriginalRule)(nil),   // 5: xray.app.dns.NameServer.OriginalRule
+	(*NameServer_PriorityDomain)(nil), // 5: xray.app.dns.NameServer.PriorityDomain
-	(*Config_HostMapping)(nil),        // 6: xray.app.dns.Config.HostMapping
+	(*NameServer_OriginalRule)(nil),   // 6: xray.app.dns.NameServer.OriginalRule
-	(*net.Endpoint)(nil),              // 7: xray.common.net.Endpoint
+	nil,                               // 7: xray.app.dns.Config.HostsEntry
-	(*router.GeoIP)(nil),              // 8: xray.app.router.GeoIP
+	(*Config_HostMapping)(nil),        // 8: xray.app.dns.Config.HostMapping
+	(*net.Endpoint)(nil),              // 9: xray.common.net.Endpoint
+	(*router.GeoIP)(nil),              // 10: xray.app.router.GeoIP
+	(*net.IPOrDomain)(nil),            // 11: xray.common.net.IPOrDomain
 }
 var file_app_dns_config_proto_depIdxs = []int32{
-	7,  // 0: xray.app.dns.NameServer.address:type_name -> xray.common.net.Endpoint
+	9,  // 0: xray.app.dns.NameServer.address:type_name -> xray.common.net.Endpoint
-	4,  // 1: xray.app.dns.NameServer.prioritized_domain:type_name -> xray.app.dns.NameServer.PriorityDomain
+	5,  // 1: xray.app.dns.NameServer.prioritized_domain:type_name -> xray.app.dns.NameServer.PriorityDomain
-	8,  // 2: xray.app.dns.NameServer.geoip:type_name -> xray.app.router.GeoIP
+	10, // 2: xray.app.dns.NameServer.geoip:type_name -> xray.app.router.GeoIP
-	5,  // 3: xray.app.dns.NameServer.original_rules:type_name -> xray.app.dns.NameServer.OriginalRule
+	6,  // 3: xray.app.dns.NameServer.original_rules:type_name -> xray.app.dns.NameServer.OriginalRule
-	1,  // 4: xray.app.dns.NameServer.query_strategy:type_name -> xray.app.dns.QueryStrategy
+	9,  // 4: xray.app.dns.Config.NameServers:type_name -> xray.common.net.Endpoint
-	2,  // 5: xray.app.dns.Config.name_server:type_name -> xray.app.dns.NameServer
+	3,  // 5: xray.app.dns.Config.name_server:type_name -> xray.app.dns.NameServer
-	6,  // 6: xray.app.dns.Config.static_hosts:type_name -> xray.app.dns.Config.HostMapping
+	7,  // 6: xray.app.dns.Config.Hosts:type_name -> xray.app.dns.Config.HostsEntry
-	1,  // 7: xray.app.dns.Config.query_strategy:type_name -> xray.app.dns.QueryStrategy
+	8,  // 7: xray.app.dns.Config.static_hosts:type_name -> xray.app.dns.Config.HostMapping
-	0,  // 8: xray.app.dns.NameServer.PriorityDomain.type:type_name -> xray.app.dns.DomainMatchingType
+	2,  // 8: xray.app.dns.Config.cache_strategy:type_name -> xray.app.dns.CacheStrategy
-	0,  // 9: xray.app.dns.Config.HostMapping.type:type_name -> xray.app.dns.DomainMatchingType
+	1,  // 9: xray.app.dns.Config.query_strategy:type_name -> xray.app.dns.QueryStrategy
-	10, // [10:10] is the sub-list for method output_type
+	0,  // 10: xray.app.dns.NameServer.PriorityDomain.type:type_name -> xray.app.dns.DomainMatchingType
-	10, // [10:10] is the sub-list for method input_type
+	11, // 11: xray.app.dns.Config.HostsEntry.value:type_name -> xray.common.net.IPOrDomain
-	10, // [10:10] is the sub-list for extension type_name
+	0,  // 12: xray.app.dns.Config.HostMapping.type:type_name -> xray.app.dns.DomainMatchingType
-	10, // [10:10] is the sub-list for extension extendee
+	13, // [13:13] is the sub-list for method output_type
-	0,  // [0:10] is the sub-list for field type_name
+	13, // [13:13] is the sub-list for method input_type
+	13, // [13:13] is the sub-list for extension type_name
+	13, // [13:13] is the sub-list for extension extendee
+	0,  // [0:13] is the sub-list for field type_name
 }
 
 func init() { file_app_dns_config_proto_init() }
@@ -641,13 +735,75 @@ func file_app_dns_config_proto_init() {
 	if File_app_dns_config_proto != nil {
 		return
 	}
+	if !protoimpl.UnsafeEnabled {
+		file_app_dns_config_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*NameServer); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_dns_config_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Config); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_dns_config_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*NameServer_PriorityDomain); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_dns_config_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*NameServer_OriginalRule); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_dns_config_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Config_HostMapping); 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_config_proto_rawDesc,
-			NumEnums:      2,
+			NumEnums:      3,
-			NumMessages:   5,
+			NumMessages:   6,
 			NumExtensions: 0,
 			NumServices:   0,
 		},

app/dns/config.proto

@@ -6,6 +6,7 @@ option go_package = "github.com/xtls/xray-core/app/dns";
 option java_package = "com.xray.app.dns";
 option java_multiple_files = true;
 
+import "common/net/address.proto";
 import "common/net/destination.proto";
 import "app/router/config.proto";
 
@@ -27,7 +28,6 @@ message NameServer {
   repeated PriorityDomain prioritized_domain = 2;
   repeated xray.app.router.GeoIP geoip = 3;
   repeated OriginalRule original_rules = 4;
-  QueryStrategy query_strategy = 7;
 }
 
 enum DomainMatchingType {
@@ -43,11 +43,25 @@ enum QueryStrategy {
   USE_IP6 = 2;
 }
 
+enum CacheStrategy {
+  Cache_ALL = 0;
+  Cache_NOERROR = 1;
+  Cache_DISABLE = 2;
+}
+
 message Config {
+  // Nameservers used by this DNS. Only traditional UDP servers are support at
+  // the moment. A special value 'localhost' as a domain address can be set to
+  // use DNS on local system.
+  repeated xray.common.net.Endpoint NameServers = 1 [deprecated = true];
+
   // NameServer list used by this DNS client.
-  // A special value 'localhost' as a domain address can be set to use DNS on local system.
   repeated NameServer name_server = 5;
 
+  // Static hosts. Domain to IP.
+  // Deprecated. Use static_hosts.
+  map<string, xray.common.net.IPOrDomain> Hosts = 2 [deprecated = true];
+
   // Client IP for EDNS client subnet. Must be 4 bytes (IPv4) or 16 bytes
   // (IPv6).
   bytes client_ip = 3;
@@ -71,10 +85,9 @@ message Config {
   reserved 7;
 
   // DisableCache disables DNS cache
-  bool disableCache = 8;
+  CacheStrategy cache_strategy = 8;
 
   QueryStrategy query_strategy = 9;
 
   bool disableFallback = 10;
-  bool disableFallbackIfMatch = 11;
 }

app/dns/dns.go

@@ -1,6 +1,8 @@
 // Package dns is an implementation of core.DNS feature.
 package dns
 
+//go:generate go run github.com/xtls/xray-core/common/errors/errorgen
+
 import (
 	"context"
 	"fmt"
@@ -13,6 +15,7 @@ import (
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/session"
 	"github.com/xtls/xray-core/common/strmatcher"
+	"github.com/xtls/xray-core/features"
 	"github.com/xtls/xray-core/features/dns"
 )
 
@@ -20,15 +23,14 @@ import (
 type DNS struct {
 	sync.Mutex
 	tag             string
-	disableCache           bool
+	cacheStrategy   CacheStrategy
 	disableFallback bool
-	disableFallbackIfMatch bool
 	ipOption        *dns.IPOption
 	hosts           *StaticHosts
 	clients         []*Client
 	ctx             context.Context
 	domainMatcher   strmatcher.IndexMatcher
-	matcherInfos           []*DomainMatcherInfo
+	matcherInfos    []DomainMatcherInfo
 }
 
 // DomainMatcherInfo contains information attached to index returned by Server.domainMatcher
@@ -51,7 +53,7 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 	case 0, net.IPv4len, net.IPv6len:
 		clientIP = net.IP(config.ClientIp)
 	default:
-		return nil, errors.New("unexpected client IP length ", len(config.ClientIp))
+		return nil, newError("unexpected client IP length ", len(config.ClientIp))
 	}
 
 	var ipOption *dns.IPOption
@@ -76,9 +78,9 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 		}
 	}
 
-	hosts, err := NewStaticHosts(config.StaticHosts)
+	hosts, err := NewStaticHosts(config.StaticHosts, config.Hosts)
 	if err != nil {
-		return nil, errors.New("failed to create hosts").Base(err)
+		return nil, newError("failed to create hosts").Base(err)
 	}
 
 	clients := []*Client{}
@@ -88,15 +90,24 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 	}
 
 	// MatcherInfos is ensured to cover the maximum index domainMatcher could return, where matcher's index starts from 1
-	matcherInfos := make([]*DomainMatcherInfo, domainRuleCount+1)
+	matcherInfos := make([]DomainMatcherInfo, domainRuleCount+1)
 	domainMatcher := &strmatcher.MatcherGroup{}
 	geoipContainer := router.GeoIPMatcherContainer{}
 
+	for _, endpoint := range config.NameServers {
+		features.PrintDeprecatedFeatureWarning("simple DNS server")
+		client, err := NewSimpleClient(ctx, endpoint, clientIP)
+		if err != nil {
+			return nil, newError("failed to create client").Base(err)
+		}
+		clients = append(clients, client)
+	}
+
 	for _, ns := range config.NameServer {
 		clientIdx := len(clients)
-		updateDomain := func(domainRule strmatcher.Matcher, originalRuleIdx int, matcherInfos []*DomainMatcherInfo) error {
+		updateDomain := func(domainRule strmatcher.Matcher, originalRuleIdx int, matcherInfos []DomainMatcherInfo) error {
 			midx := domainMatcher.Add(domainRule)
-			matcherInfos[midx] = &DomainMatcherInfo{
+			matcherInfos[midx] = DomainMatcherInfo{
 				clientIdx:     uint16(clientIdx),
 				domainRuleIdx: uint16(originalRuleIdx),
 			}
@@ -110,7 +121,7 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 		}
 		client, err := NewClient(ctx, ns, myClientIP, geoipContainer, &matcherInfos, updateDomain)
 		if err != nil {
-			return nil, errors.New("failed to create client").Base(err)
+			return nil, newError("failed to create client").Base(err)
 		}
 		clients = append(clients, client)
 	}
@@ -128,9 +139,8 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 		ctx:             ctx,
 		domainMatcher:   domainMatcher,
 		matcherInfos:    matcherInfos,
-		disableCache:           config.DisableCache,
+		cacheStrategy:   config.CacheStrategy,
 		disableFallback: config.DisableFallback,
-		disableFallbackIfMatch: config.DisableFallbackIfMatch,
 	}, nil
 }
 
@@ -156,20 +166,48 @@ func (s *DNS) IsOwnLink(ctx context.Context) bool {
 }
 
 // LookupIP implements dns.Client.
-func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, error) {
+func (s *DNS) LookupIP(domain string) ([]net.IP, error) {
-	if domain == "" {
+	return s.lookupIPInternal(domain, s.ipOption.Copy())
-		return nil, errors.New("empty domain name")
+}
+
+// LookupOptions implements dns.Client.
+func (s *DNS) LookupOptions(domain string, opts ...dns.Option) ([]net.IP, error) {
+	opt := s.ipOption.Copy()
+	for _, o := range opts {
+		if o != nil {
+			o(opt)
+		}
 	}
 
-	option.IPv4Enable = option.IPv4Enable && s.ipOption.IPv4Enable
+	return s.lookupIPInternal(domain, opt)
-	option.IPv6Enable = option.IPv6Enable && s.ipOption.IPv6Enable
+}
 
-	if !option.IPv4Enable && !option.IPv6Enable {
+// LookupIPv4 implements dns.IPv4Lookup.
-		return nil, dns.ErrEmptyResponse
+func (s *DNS) LookupIPv4(domain string) ([]net.IP, error) {
+	return s.lookupIPInternal(domain, &dns.IPOption{
+		IPv4Enable: true,
+	})
+}
+
+// LookupIPv6 implements dns.IPv6Lookup.
+func (s *DNS) LookupIPv6(domain string) ([]net.IP, error) {
+	return s.lookupIPInternal(domain, &dns.IPOption{
+		IPv6Enable: true,
+	})
+}
+
+func (s *DNS) lookupIPInternal(domain string, option *dns.IPOption) ([]net.IP, error) {
+	if domain == "" {
+		return nil, newError("empty domain name")
+	}
+	if isQuery(option) {
+		return nil, newError("empty option: Impossible.").AtWarning()
 	}
 
 	// Normalize the FQDN form query
-	domain = strings.TrimSuffix(domain, ".")
+	if strings.HasSuffix(domain, ".") {
+		domain = domain[:len(domain)-1]
+	}
 
 	// Static host lookup
 	switch addrs := s.hosts.Lookup(domain, option); {
@@ -178,82 +216,66 @@ func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, error) {
 	case len(addrs) == 0: // Domain recorded, but no valid IP returned (e.g. IPv4 address with only IPv6 enabled)
 		return nil, dns.ErrEmptyResponse
 	case len(addrs) == 1 && addrs[0].Family().IsDomain(): // Domain replacement
-		errors.LogInfo(s.ctx, "domain replaced: ", domain, " -> ", addrs[0].Domain())
+		newError("domain replaced: ", domain, " -> ", addrs[0].Domain()).WriteToLog()
 		domain = addrs[0].Domain()
-	default: // Successfully found ip records in static host
+	default:
-		errors.LogInfo(s.ctx, "returning ", len(addrs), " IP(s) for domain ", domain, " -> ", addrs)
+		// Successfully found ip records in static host.
+		// Skip hosts mapping result in FakeDNS query.
+		if isIPQuery(option) {
+			newError("returning ", len(addrs), " IP(s) for domain ", domain, " -> ", addrs).WriteToLog()
 			return toNetIP(addrs)
 		}
+	}
 
 	// Name servers lookup
 	errs := []error{}
 	ctx := session.ContextWithInbound(s.ctx, &session.Inbound{Tag: s.tag})
-	for _, client := range s.sortClients(domain) {
+	for _, client := range s.sortClients(domain, option) {
-		if !option.FakeEnable && strings.EqualFold(client.Name(), "FakeDNS") {
+		ips, err := client.QueryIP(ctx, domain, *option, s.cacheStrategy)
-			errors.LogDebug(s.ctx, "skip DNS resolution for domain ", domain, " at server ", client.Name())
-			continue
-		}
-		ips, err := client.QueryIP(ctx, domain, option, s.disableCache)
 		if len(ips) > 0 {
 			return ips, nil
 		}
 		if err != nil {
-			errors.LogInfoInner(s.ctx, err, "failed to lookup ip for domain ", domain, " at server ", client.Name())
+			newError("failed to lookup ip for domain ", domain, " at server ", client.Name()).Base(err).WriteToLog()
 			errs = append(errs, err)
 		}
-		// 5 for RcodeRefused in miekg/dns, hardcode to reduce binary size
+		if err != context.Canceled && err != context.DeadlineExceeded && err != errExpectedIPNonMatch {
-		if err != context.Canceled && err != context.DeadlineExceeded && err != errExpectedIPNonMatch && err != dns.ErrEmptyResponse && dns.RCodeFromError(err) != 5 {
 			return nil, err
 		}
 	}
 
-	return nil, errors.New("returning nil for domain ", domain).Base(errors.Combine(errs...))
+	return nil, newError("returning nil for domain ", domain).Base(errors.Combine(errs...))
 }
 
-// LookupHosts implements dns.HostsLookup.
+func (s *DNS) sortClients(domain string, option *dns.IPOption) []*Client {
-func (s *DNS) LookupHosts(domain string) *net.Address {
-	domain = strings.TrimSuffix(domain, ".")
-	if domain == "" {
-		return nil
-	}
-	// Normalize the FQDN form query
-	addrs := s.hosts.Lookup(domain, *s.ipOption)
-	if len(addrs) > 0 {
-		errors.LogInfo(s.ctx, "domain replaced: ", domain, " -> ", addrs[0].String())
-		return &addrs[0]
-	}
-
-	return nil
-}
-
-// GetIPOption implements ClientWithIPOption.
-func (s *DNS) GetIPOption() *dns.IPOption {
-	return s.ipOption
-}
-
-// SetQueryOption implements ClientWithIPOption.
-func (s *DNS) SetQueryOption(isIPv4Enable, isIPv6Enable bool) {
-	s.ipOption.IPv4Enable = isIPv4Enable
-	s.ipOption.IPv6Enable = isIPv6Enable
-}
-
-// SetFakeDNSOption implements ClientWithIPOption.
-func (s *DNS) SetFakeDNSOption(isFakeEnable bool) {
-	s.ipOption.FakeEnable = isFakeEnable
-}
-
-func (s *DNS) sortClients(domain string) []*Client {
 	clients := make([]*Client, 0, len(s.clients))
 	clientUsed := make([]bool, len(s.clients))
 	clientNames := make([]string, 0, len(s.clients))
 	domainRules := []string{}
 
+	defer func() {
+		if len(domainRules) > 0 {
+			newError("domain ", domain, " matches following rules: ", domainRules).AtDebug().WriteToLog()
+		}
+		if len(clientNames) > 0 {
+			newError("domain ", domain, " will use DNS in order: ", clientNames).AtDebug().WriteToLog()
+		}
+		if len(clients) == 0 {
+			clients = append(clients, s.clients[0])
+			clientNames = append(clientNames, s.clients[0].Name())
+			newError("domain ", domain, " will use the first DNS: ", clientNames).AtDebug().WriteToLog()
+		}
+	}()
+
 	// Priority domain matching
-	hasMatch := false
 	for _, match := range s.domainMatcher.Match(domain) {
 		info := s.matcherInfos[match]
 		client := s.clients[info.clientIdx]
 		domainRule := client.domains[info.domainRuleIdx]
+		if !canQueryOnClient(option, client) {
+			newError("skipping the client " + client.Name()).AtDebug().WriteToLog()
+			continue
+		}
 		domainRules = append(domainRules, fmt.Sprintf("%s(DNS idx:%d)", domainRule, info.clientIdx))
 		if clientUsed[info.clientIdx] {
 			continue
@@ -261,34 +283,26 @@ func (s *DNS) sortClients(domain string) []*Client {
 		clientUsed[info.clientIdx] = true
 		clients = append(clients, client)
 		clientNames = append(clientNames, client.Name())
-		hasMatch = true
 	}
 
-	if !(s.disableFallback || s.disableFallbackIfMatch && hasMatch) {
+	if !s.disableFallback {
 		// Default round-robin query
 		for idx, client := range s.clients {
 			if clientUsed[idx] || client.skipFallback {
 				continue
 			}
+
+			if !canQueryOnClient(option, client) {
+				newError("skipping the client " + client.Name()).AtDebug().WriteToLog()
+				continue
+			}
+
 			clientUsed[idx] = true
 			clients = append(clients, client)
 			clientNames = append(clientNames, client.Name())
 		}
 	}
 
-	if len(domainRules) > 0 {
-		errors.LogDebug(s.ctx, "domain ", domain, " matches following rules: ", domainRules)
-	}
-	if len(clientNames) > 0 {
-		errors.LogDebug(s.ctx, "domain ", domain, " will use DNS in order: ", clientNames)
-	}
-
-	if len(clients) == 0 {
-		clients = append(clients, s.clients[0])
-		clientNames = append(clientNames, s.clients[0].Name())
-		errors.LogDebug(s.ctx, "domain ", domain, " will use the first DNS: ", clientNames)
-	}
-
 	return clients
 }
 

app/dns/dns_test.go

@@ -6,6 +6,7 @@ import (
 
 	"github.com/google/go-cmp/cmp"
 	"github.com/miekg/dns"
+
 	"github.com/xtls/xray-core/app/dispatcher"
 	. "github.com/xtls/xray-core/app/dns"
 	"github.com/xtls/xray-core/app/policy"
@@ -13,7 +14,6 @@ import (
 	_ "github.com/xtls/xray-core/app/proxyman/outbound"
 	"github.com/xtls/xray-core/app/router"
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/serial"
 	"github.com/xtls/xray-core/core"
@@ -22,7 +22,8 @@ import (
 	"github.com/xtls/xray-core/testing/servers/udp"
 )
 
-type staticHandler struct{}
+type staticHandler struct {
+}
 
 func (*staticHandler) ServeDNS(w dns.ResponseWriter, r *dns.Msg) {
 	ans := new(dns.Msg)
@@ -124,9 +125,8 @@ func TestUDPServerSubnet(t *testing.T) {
 	config := &core.Config{
 		App: []*serial.TypedMessage{
 			serial.ToTypedMessage(&Config{
-				NameServer: []*NameServer{
+				NameServers: []*net.Endpoint{
 					{
-						Address: &net.Endpoint{
 						Network: net.Network_UDP,
 						Address: &net.IPOrDomain{
 							Address: &net.IPOrDomain_Ip{
@@ -136,7 +136,6 @@ func TestUDPServerSubnet(t *testing.T) {
 						Port: uint32(port),
 					},
 				},
-				},
 				ClientIp: []byte{7, 8, 9, 10},
 			}),
 			serial.ToTypedMessage(&dispatcher.Config{}),
@@ -155,11 +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{
+	ips, err := client.LookupIP("google.com")
-		IPv4Enable: true,
-		IPv6Enable: true,
-		FakeEnable: false,
-	})
 	if err != nil {
 		t.Fatal("unexpected error: ", err)
 	}
@@ -185,9 +180,8 @@ func TestUDPServer(t *testing.T) {
 	config := &core.Config{
 		App: []*serial.TypedMessage{
 			serial.ToTypedMessage(&Config{
-				NameServer: []*NameServer{
+				NameServers: []*net.Endpoint{
 					{
-						Address: &net.Endpoint{
 						Network: net.Network_UDP,
 						Address: &net.IPOrDomain{
 							Address: &net.IPOrDomain_Ip{
@@ -197,7 +191,6 @@ func TestUDPServer(t *testing.T) {
 						Port: uint32(port),
 					},
 				},
-				},
 			}),
 			serial.ToTypedMessage(&dispatcher.Config{}),
 			serial.ToTypedMessage(&proxyman.OutboundConfig{}),
@@ -216,11 +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{
+		ips, err := client.LookupIP("google.com")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -231,11 +220,7 @@ func TestUDPServer(t *testing.T) {
 	}
 
 	{
-		ips, err := client.LookupIP("facebook.com", feature_dns.IPOption{
+		ips, err := client.LookupIP("facebook.com")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -246,11 +231,7 @@ func TestUDPServer(t *testing.T) {
 	}
 
 	{
-		_, err := client.LookupIP("notexist.google.com", feature_dns.IPOption{
+		_, err := client.LookupIP("notexist.google.com")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err == nil {
 			t.Fatal("nil error")
 		}
@@ -260,12 +241,9 @@ func TestUDPServer(t *testing.T) {
 	}
 
 	{
-		ips, err := client.LookupIP("ipv4only.google.com", feature_dns.IPOption{
+		clientv6 := client.(feature_dns.IPv6Lookup)
-			IPv4Enable: false,
+		ips, err := clientv6.LookupIPv6("ipv4only.google.com")
-			IPv6Enable: true,
+		if err != feature_dns.ErrEmptyResponse {
-			FakeEnable: false,
-		})
-		if !errors.AllEqual(feature_dns.ErrEmptyResponse, errors.Cause(err)) {
 			t.Fatal("error: ", err)
 		}
 		if len(ips) != 0 {
@@ -276,11 +254,7 @@ func TestUDPServer(t *testing.T) {
 	dnsServer.Shutdown()
 
 	{
-		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
+		ips, err := client.LookupIP("google.com")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -307,9 +281,8 @@ func TestPrioritizedDomain(t *testing.T) {
 	config := &core.Config{
 		App: []*serial.TypedMessage{
 			serial.ToTypedMessage(&Config{
-				NameServer: []*NameServer{
+				NameServers: []*net.Endpoint{
 					{
-						Address: &net.Endpoint{
 						Network: net.Network_UDP,
 						Address: &net.IPOrDomain{
 							Address: &net.IPOrDomain_Ip{
@@ -319,6 +292,7 @@ func TestPrioritizedDomain(t *testing.T) {
 						Port: 9999, /* unreachable */
 					},
 				},
+				NameServer: []*NameServer{
 					{
 						Address: &net.Endpoint{
 							Network: net.Network_UDP,
@@ -357,11 +331,7 @@ func TestPrioritizedDomain(t *testing.T) {
 	startTime := time.Now()
 
 	{
-		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
+		ips, err := client.LookupIP("google.com")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -393,9 +363,8 @@ func TestUDPServerIPv6(t *testing.T) {
 	config := &core.Config{
 		App: []*serial.TypedMessage{
 			serial.ToTypedMessage(&Config{
-				NameServer: []*NameServer{
+				NameServers: []*net.Endpoint{
 					{
-						Address: &net.Endpoint{
 						Network: net.Network_UDP,
 						Address: &net.IPOrDomain{
 							Address: &net.IPOrDomain_Ip{
@@ -405,7 +374,6 @@ func TestUDPServerIPv6(t *testing.T) {
 						Port: uint32(port),
 					},
 				},
-				},
 			}),
 			serial.ToTypedMessage(&dispatcher.Config{}),
 			serial.ToTypedMessage(&proxyman.OutboundConfig{}),
@@ -422,12 +390,9 @@ 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{
+		ips, err := client6.LookupIPv6("ipv6.google.com")
-			IPv4Enable: false,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -454,9 +419,8 @@ func TestStaticHostDomain(t *testing.T) {
 	config := &core.Config{
 		App: []*serial.TypedMessage{
 			serial.ToTypedMessage(&Config{
-				NameServer: []*NameServer{
+				NameServers: []*net.Endpoint{
 					{
-						Address: &net.Endpoint{
 						Network: net.Network_UDP,
 						Address: &net.IPOrDomain{
 							Address: &net.IPOrDomain_Ip{
@@ -466,7 +430,6 @@ func TestStaticHostDomain(t *testing.T) {
 						Port: uint32(port),
 					},
 				},
-				},
 				StaticHosts: []*Config_HostMapping{
 					{
 						Type:          DomainMatchingType_Full,
@@ -492,11 +455,7 @@ func TestStaticHostDomain(t *testing.T) {
 	client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)
 
 	{
-		ips, err := client.LookupIP("example.com", feature_dns.IPOption{
+		ips, err := client.LookupIP("example.com")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -603,11 +562,7 @@ func TestIPMatch(t *testing.T) {
 	startTime := time.Now()
 
 	{
-		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
+		ips, err := client.LookupIP("google.com")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -639,9 +594,8 @@ func TestLocalDomain(t *testing.T) {
 	config := &core.Config{
 		App: []*serial.TypedMessage{
 			serial.ToTypedMessage(&Config{
-				NameServer: []*NameServer{
+				NameServers: []*net.Endpoint{
 					{
-						Address: &net.Endpoint{
 						Network: net.Network_UDP,
 						Address: &net.IPOrDomain{
 							Address: &net.IPOrDomain_Ip{
@@ -651,6 +605,7 @@ func TestLocalDomain(t *testing.T) {
 						Port: 9999, /* unreachable */
 					},
 				},
+				NameServer: []*NameServer{
 					{
 						Address: &net.Endpoint{
 							Network: net.Network_UDP,
@@ -726,11 +681,7 @@ func TestLocalDomain(t *testing.T) {
 	startTime := time.Now()
 
 	{ // Will match dotless:
-		ips, err := client.LookupIP("hostname", feature_dns.IPOption{
+		ips, err := client.LookupIP("hostname")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -741,11 +692,7 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match domain:local
-		ips, err := client.LookupIP("hostname.local", feature_dns.IPOption{
+		ips, err := client.LookupIP("hostname.local")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -756,11 +703,7 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match static ip
-		ips, err := client.LookupIP("hostnamestatic", feature_dns.IPOption{
+		ips, err := client.LookupIP("hostnamestatic")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -771,11 +714,7 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match domain replacing
-		ips, err := client.LookupIP("hostnamealias", feature_dns.IPOption{
+		ips, err := client.LookupIP("hostnamealias")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -786,11 +725,7 @@ 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{
+		ips, err := client.LookupIP("localhost")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -801,11 +736,7 @@ 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{
+		ips, err := client.LookupIP("localhost-a")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -816,11 +747,7 @@ 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{
+		ips, err := client.LookupIP("localhost-b")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -831,11 +758,7 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match dotless:
-		ips, err := client.LookupIP("Mijia Cloud", feature_dns.IPOption{
+		ips, err := client.LookupIP("Mijia Cloud")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -867,9 +790,8 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 	config := &core.Config{
 		App: []*serial.TypedMessage{
 			serial.ToTypedMessage(&Config{
-				NameServer: []*NameServer{
+				NameServers: []*net.Endpoint{
 					{
-						Address: &net.Endpoint{
 						Network: net.Network_UDP,
 						Address: &net.IPOrDomain{
 							Address: &net.IPOrDomain_Ip{
@@ -879,6 +801,7 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 						Port: 9999, /* unreachable */
 					},
 				},
+				NameServer: []*NameServer{
 					{
 						Address: &net.Endpoint{
 							Network: net.Network_UDP,
@@ -997,11 +920,7 @@ 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{
+		ips, err := client.LookupIP("google.com")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -1012,11 +931,8 @@ 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{
+		clientv4 := client.(feature_dns.IPv4Lookup)
-			IPv4Enable: true,
+		ips, err := clientv4.LookupIPv4("ipv6.google.com")
-			IPv6Enable: false,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -1027,11 +943,7 @@ 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{
+		ips, err := client.LookupIP("api.google.com")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -1042,11 +954,7 @@ 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{
+		ips, err := client.LookupIP("v2.api.google.com")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}

app/dns/dnscommon.go

@@ -1,22 +1,18 @@
 package dns
 
 import (
-	"context"
 	"encoding/binary"
 	"strings"
 	"time"
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
-	"github.com/xtls/xray-core/common/log"
 	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/common/session"
-	"github.com/xtls/xray-core/core"
 	dns_feature "github.com/xtls/xray-core/features/dns"
 	"golang.org/x/net/dns/dnsmessage"
 )
 
-// Fqdn normalizes domain make sure it ends with '.'
+// Fqdn normalize domain make sure it ends with '.'
 func Fqdn(domain string) string {
 	if len(domain) > 0 && strings.HasSuffix(domain, ".") {
 		return domain
@@ -57,7 +53,9 @@ func isNewer(baseRec *IPRecord, newRec *IPRecord) bool {
 	return baseRec.Expire.Before(newRec.Expire)
 }
 
-var errRecordNotFound = errors.New("record not found")
+var (
+	errRecordNotFound = errors.New("record not found")
+)
 
 type dnsRequest struct {
 	reqType dnsmessage.Type
@@ -166,15 +164,15 @@ func buildReqMsgs(domain string, option dns_feature.IPOption, reqIDGen func() ui
 	return reqs
 }
 
-// parseResponse parses DNS answers from the returned payload
+// parseResponse parse DNS answers from the returned payload
 func parseResponse(payload []byte) (*IPRecord, error) {
 	var parser dnsmessage.Parser
 	h, err := parser.Start(payload)
 	if err != nil {
-		return nil, errors.New("failed to parse DNS response").Base(err).AtWarning()
+		return nil, newError("failed to parse DNS response").Base(err).AtWarning()
 	}
 	if err := parser.SkipAllQuestions(); err != nil {
-		return nil, errors.New("failed to skip questions in DNS response").Base(err).AtWarning()
+		return nil, newError("failed to skip questions in DNS response").Base(err).AtWarning()
 	}
 
 	now := time.Now()
@@ -189,7 +187,7 @@ L:
 		ah, err := parser.AnswerHeader()
 		if err != nil {
 			if err != dnsmessage.ErrSectionDone {
-				errors.LogInfoInner(context.Background(), err, "failed to parse answer section for domain: ", ah.Name.String())
+				newError("failed to parse answer section for domain: ", ah.Name.String()).Base(err).WriteToLog()
 			}
 			break
 		}
@@ -207,20 +205,20 @@ L:
 		case dnsmessage.TypeA:
 			ans, err := parser.AResource()
 			if err != nil {
-				errors.LogInfoInner(context.Background(), err, "failed to parse A record for domain: ", ah.Name)
+				newError("failed to parse A record for domain: ", ah.Name).Base(err).WriteToLog()
 				break L
 			}
 			ipRecord.IP = append(ipRecord.IP, net.IPAddress(ans.A[:]))
 		case dnsmessage.TypeAAAA:
 			ans, err := parser.AAAAResource()
 			if err != nil {
-				errors.LogInfoInner(context.Background(), err, "failed to parse AAAA record for domain: ", ah.Name)
+				newError("failed to parse A record for domain: ", ah.Name).Base(err).WriteToLog()
 				break L
 			}
 			ipRecord.IP = append(ipRecord.IP, net.IPAddress(ans.AAAA[:]))
 		default:
 			if err := parser.SkipAnswer(); err != nil {
-				errors.LogInfoInner(context.Background(), err, "failed to skip answer")
+				newError("failed to skip answer").Base(err).WriteToLog()
 				break L
 			}
 			continue
@@ -229,19 +227,3 @@ L:
 
 	return ipRecord, nil
 }
-
-// toDnsContext create a new background context with parent inbound, session and dns log
-func toDnsContext(ctx context.Context, addr string) context.Context {
-	dnsCtx := core.ToBackgroundDetachedContext(ctx)
-	if inbound := session.InboundFromContext(ctx); inbound != nil {
-		dnsCtx = session.ContextWithInbound(dnsCtx, inbound)
-	}
-	dnsCtx = session.ContextWithContent(dnsCtx, session.ContentFromContext(ctx))
-	dnsCtx = log.ContextWithAccessMessage(dnsCtx, &log.AccessMessage{
-		From:   "DNS",
-		To:     addr,
-		Status: log.AccessAccepted,
-		Reason: "",
-	})
-	return dnsCtx
-}

app/dns/dnscommon_test.go

@@ -49,28 +49,20 @@ func Test_parseResponse(t *testing.T) {
 		want    *IPRecord
 		wantErr bool
 	}{
-		{
+		{"empty",
-			"empty",
 			&IPRecord{0, []net.Address(nil), time.Time{}, dnsmessage.RCodeSuccess},
 			false,
 		},
-		{
+		{"error",
-			"error",
 			nil,
 			true,
 		},
-		{
+		{"a record",
-			"a record",
+			&IPRecord{1, []net.Address{net.ParseAddress("8.8.8.8"), net.ParseAddress("8.8.4.4")},
-			&IPRecord{
+				time.Time{}, dnsmessage.RCodeSuccess},
-				1,
-				[]net.Address{net.ParseAddress("8.8.8.8"), net.ParseAddress("8.8.4.4")},
-				time.Time{},
-				dnsmessage.RCodeSuccess,
-			},
 			false,
 		},
-		{
+		{"aaaa record",
-			"aaaa record",
 			&IPRecord{2, []net.Address{net.ParseAddress("2001::123:8888"), net.ParseAddress("2001::123:8844")}, time.Time{}, dnsmessage.RCodeSuccess},
 			false,
 		},

app/dns/errors.generated.go

@@ -0,0 +1,9 @@
+package dns
+
+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/errors.generated.go

@@ -0,0 +1,9 @@
+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

@@ -5,12 +5,10 @@ import (
 	"math"
 	"math/big"
 	gonet "net"
-	"sync"
 	"time"
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/cache"
-	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/features/dns"
 )
@@ -18,41 +16,21 @@ import (
 type Holder struct {
 	domainToIP cache.Lru
 	ipRange    *gonet.IPNet
-	mu         *sync.Mutex
 
 	config *FakeDnsPool
 }
 
-func (fkdns *Holder) IsIPInIPPool(ip net.Address) bool {
-	if ip.Family().IsDomain() {
-		return false
-	}
-	return fkdns.ipRange.Contains(ip.IP())
-}
-
-func (fkdns *Holder) GetFakeIPForDomain3(domain string, ipv4, ipv6 bool) []net.Address {
-	isIPv6 := fkdns.ipRange.IP.To4() == nil
-	if (isIPv6 && ipv6) || (!isIPv6 && ipv4) {
-		return fkdns.GetFakeIPForDomain(domain)
-	}
-	return []net.Address{}
-}
-
 func (*Holder) Type() interface{} {
 	return (*dns.FakeDNSEngine)(nil)
 }
 
 func (fkdns *Holder) Start() error {
-	if fkdns.config != nil && fkdns.config.IpPool != "" && fkdns.config.LruSize != 0 {
 	return fkdns.initializeFromConfig()
-	}
-	return errors.New("invalid fakeDNS setting")
 }
 
 func (fkdns *Holder) Close() error {
 	fkdns.domainToIP = nil
 	fkdns.ipRange = nil
-	fkdns.mu = nil
 	return nil
 }
 
@@ -61,9 +39,9 @@ func NewFakeDNSHolder() (*Holder, error) {
 	var err error
 
 	if fkdns, err = NewFakeDNSHolderConfigOnly(nil); err != nil {
-		return nil, errors.New("Unable to create Fake Dns Engine").Base(err).AtError()
+		return nil, newError("Unable to create Fake Dns Engine").Base(err).AtError()
 	}
-	err = fkdns.initialize(dns.FakeIPv4Pool, 65535)
+	err = fkdns.initialize(dns.FakeIPPool, 65535)
 	if err != nil {
 		return nil, err
 	}
@@ -71,7 +49,7 @@ func NewFakeDNSHolder() (*Holder, error) {
 }
 
 func NewFakeDNSHolderConfigOnly(conf *FakeDnsPool) (*Holder, error) {
-	return &Holder{nil, nil, nil, conf}, nil
+	return &Holder{nil, nil, conf}, nil
 }
 
 func (fkdns *Holder) initializeFromConfig() error {
@@ -83,34 +61,31 @@ func (fkdns *Holder) initialize(ipPoolCidr string, lruSize int) error {
 	var err error
 
 	if _, ipRange, err = gonet.ParseCIDR(ipPoolCidr); err != nil {
-		return errors.New("Unable to parse CIDR for Fake DNS IP assignment").Base(err).AtError()
+		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 errors.New("LRU size is bigger than subnet size").AtError()
+		return newError("LRU size is bigger than subnet size").AtError()
 	}
 	fkdns.domainToIP = cache.NewLru(lruSize)
 	fkdns.ipRange = ipRange
-	fkdns.mu = new(sync.Mutex)
 	return nil
 }
 
-// GetFakeIPForDomain checks and generates a fake IP for a domain name
+// GetFakeIPForDomain check and generate a fake IP for a domain name
 func (fkdns *Holder) GetFakeIPForDomain(domain string) []net.Address {
-	fkdns.mu.Lock()
-	defer fkdns.mu.Unlock()
 	if v, ok := fkdns.domainToIP.Get(domain); ok {
 		return []net.Address{v.(net.Address)}
 	}
-	currentTimeMillis := uint64(time.Now().UnixNano() / 1e6)
+	var currentTimeMillis = uint64(time.Now().UnixNano() / 1e6)
 	ones, bits := fkdns.ipRange.Mask.Size()
 	rooms := bits - ones
 	if rooms < 64 {
 		currentTimeMillis %= (uint64(1) << rooms)
 	}
-	bigIntIP := big.NewInt(0).SetBytes(fkdns.ipRange.IP)
+	var bigIntIP = big.NewInt(0).SetBytes(fkdns.ipRange.IP)
 	bigIntIP = bigIntIP.Add(bigIntIP, new(big.Int).SetUint64(currentTimeMillis))
 	var ip net.Address
 	for {
@@ -130,7 +105,7 @@ func (fkdns *Holder) GetFakeIPForDomain(domain string) []net.Address {
 	return []net.Address{ip}
 }
 
-// GetDomainFromFakeDNS checks if an IP is a fake IP and have corresponding domain name
+// 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 ""
@@ -138,96 +113,13 @@ func (fkdns *Holder) GetDomainFromFakeDNS(ip net.Address) string {
 	if k, ok := fkdns.domainToIP.GetKeyFromValue(ip); ok {
 		return k.(string)
 	}
-	errors.LogInfo(context.Background(), "A fake ip request to ", ip, ", however there is no matching domain name in fake DNS")
+	newError("A fake ip request to ", ip, ", however there is no matching domain name in fake DNS").AtInfo().WriteToLog()
 	return ""
 }
 
-type HolderMulti struct {
+// GetFakeIPRange return fake IP range from configuration
-	holders []*Holder
+func (fkdns *Holder) GetFakeIPRange() *gonet.IPNet {
-
+	return fkdns.ipRange
-	config *FakeDnsPoolMulti
-}
-
-func (h *HolderMulti) IsIPInIPPool(ip net.Address) bool {
-	if ip.Family().IsDomain() {
-		return false
-	}
-	for _, v := range h.holders {
-		if v.IsIPInIPPool(ip) {
-			return true
-		}
-	}
-	return false
-}
-
-func (h *HolderMulti) GetFakeIPForDomain3(domain string, ipv4, ipv6 bool) []net.Address {
-	var ret []net.Address
-	for _, v := range h.holders {
-		ret = append(ret, v.GetFakeIPForDomain3(domain, ipv4, ipv6)...)
-	}
-	return ret
-}
-
-func (h *HolderMulti) GetFakeIPForDomain(domain string) []net.Address {
-	var ret []net.Address
-	for _, v := range h.holders {
-		ret = append(ret, v.GetFakeIPForDomain(domain)...)
-	}
-	return ret
-}
-
-func (h *HolderMulti) GetDomainFromFakeDNS(ip net.Address) string {
-	for _, v := range h.holders {
-		if domain := v.GetDomainFromFakeDNS(ip); domain != "" {
-			return domain
-		}
-	}
-	return ""
-}
-
-func (h *HolderMulti) Type() interface{} {
-	return (*dns.FakeDNSEngine)(nil)
-}
-
-func (h *HolderMulti) Start() error {
-	for _, v := range h.holders {
-		if v.config != nil && v.config.IpPool != "" && v.config.LruSize != 0 {
-			if err := v.Start(); err != nil {
-				return errors.New("Cannot start all fake dns pools").Base(err)
-			}
-		} else {
-			return errors.New("invalid fakeDNS setting")
-		}
-	}
-	return nil
-}
-
-func (h *HolderMulti) Close() error {
-	for _, v := range h.holders {
-		if err := v.Close(); err != nil {
-			return errors.New("Cannot close all fake dns pools").Base(err)
-		}
-	}
-	return nil
-}
-
-func (h *HolderMulti) createHolderGroups() error {
-	for _, v := range h.config.Pools {
-		holder, err := NewFakeDNSHolderConfigOnly(v)
-		if err != nil {
-			return err
-		}
-		h.holders = append(h.holders, holder)
-	}
-	return nil
-}
-
-func NewFakeDNSHolderMulti(conf *FakeDnsPoolMulti) (*HolderMulti, error) {
-	holderMulti := &HolderMulti{nil, conf}
-	if err := holderMulti.createHolderGroups(); err != nil {
-		return nil, err
-	}
-	return holderMulti, nil
 }
 
 func init() {
@@ -239,13 +131,4 @@ func init() {
 		}
 		return f, nil
 	}))
-
-	common.Must(common.RegisterConfig((*FakeDnsPoolMulti)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
-		var f *HolderMulti
-		var err error
-		if f, err = NewFakeDNSHolderMulti(config.(*FakeDnsPoolMulti)); err != nil {
-			return nil, err
-		}
-		return f, nil
-	}))
 }

app/dns/fakedns/fakedns.go

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

app/dns/fakedns/fakedns.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.35.1
+// 	protoc-gen-go v1.25.0
-// 	protoc        v5.28.2
+// 	protoc        v3.13.0
 // source: app/dns/fakedns/fakedns.proto
 
 package fakedns
 
 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 FakeDnsPool struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -31,9 +36,11 @@ type FakeDnsPool struct {
 
 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 {
@@ -44,7 +51,7 @@ func (*FakeDnsPool) ProtoMessage() {}
 
 func (x *FakeDnsPool) ProtoReflect() protoreflect.Message {
 	mi := &file_app_dns_fakedns_fakedns_proto_msgTypes[0]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -73,73 +80,24 @@ func (x *FakeDnsPool) GetLruSize() int64 {
 	return 0
 }
 
-type FakeDnsPoolMulti struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Pools []*FakeDnsPool `protobuf:"bytes,1,rep,name=pools,proto3" json:"pools,omitempty"`
-}
-
-func (x *FakeDnsPoolMulti) Reset() {
-	*x = FakeDnsPoolMulti{}
-	mi := &file_app_dns_fakedns_fakedns_proto_msgTypes[1]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *FakeDnsPoolMulti) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*FakeDnsPoolMulti) ProtoMessage() {}
-
-func (x *FakeDnsPoolMulti) ProtoReflect() protoreflect.Message {
-	mi := &file_app_dns_fakedns_fakedns_proto_msgTypes[1]
-	if x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use FakeDnsPoolMulti.ProtoReflect.Descriptor instead.
-func (*FakeDnsPoolMulti) Descriptor() ([]byte, []int) {
-	return file_app_dns_fakedns_fakedns_proto_rawDescGZIP(), []int{1}
-}
-
-func (x *FakeDnsPoolMulti) GetPools() []*FakeDnsPool {
-	if x != nil {
-		return x.Pools
-	}
-	return nil
-}
-
 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,
+	0x1a, 0x76, 0x32, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x72, 0x65, 0x2e, 0x61, 0x70, 0x70, 0x2e,
-	0x6b, 0x65, 0x64, 0x6e, 0x73, 0x22, 0x40, 0x0a, 0x0b, 0x46, 0x61, 0x6b, 0x65, 0x44, 0x6e, 0x73,
+	0x64, 0x6e, 0x73, 0x2e, 0x66, 0x61, 0x6b, 0x65, 0x64, 0x6e, 0x73, 0x22, 0x40, 0x0a, 0x0b, 0x46,
-	0x50, 0x6f, 0x6f, 0x6c, 0x12, 0x17, 0x0a, 0x07, 0x69, 0x70, 0x5f, 0x70, 0x6f, 0x6f, 0x6c, 0x18,
+	0x61, 0x6b, 0x65, 0x44, 0x6e, 0x73, 0x50, 0x6f, 0x6f, 0x6c, 0x12, 0x17, 0x0a, 0x07, 0x69, 0x70,
-	0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x06, 0x69, 0x70, 0x50, 0x6f, 0x6f, 0x6c, 0x12, 0x18, 0x0a,
+	0x5f, 0x70, 0x6f, 0x6f, 0x6c, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x06, 0x69, 0x70, 0x50,
-	0x07, 0x6c, 0x72, 0x75, 0x53, 0x69, 0x7a, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x03, 0x52, 0x07,
+	0x6f, 0x6f, 0x6c, 0x12, 0x18, 0x0a, 0x07, 0x6c, 0x72, 0x75, 0x53, 0x69, 0x7a, 0x65, 0x18, 0x02,
-	0x6c, 0x72, 0x75, 0x53, 0x69, 0x7a, 0x65, 0x22, 0x4b, 0x0a, 0x10, 0x46, 0x61, 0x6b, 0x65, 0x44,
+	0x20, 0x01, 0x28, 0x03, 0x52, 0x07, 0x6c, 0x72, 0x75, 0x53, 0x69, 0x7a, 0x65, 0x42, 0x5f, 0x0a,
-	0x6e, 0x73, 0x50, 0x6f, 0x6f, 0x6c, 0x4d, 0x75, 0x6c, 0x74, 0x69, 0x12, 0x37, 0x0a, 0x05, 0x70,
+	0x1e, 0x63, 0x6f, 0x6d, 0x2e, 0x76, 0x32, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x72, 0x65, 0x2e,
-	0x6f, 0x6f, 0x6c, 0x73, 0x18, 0x01, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x21, 0x2e, 0x78, 0x72, 0x61,
+	0x61, 0x70, 0x70, 0x2e, 0x64, 0x6e, 0x73, 0x2e, 0x66, 0x61, 0x6b, 0x65, 0x64, 0x6e, 0x73, 0x50,
-	0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x64, 0x6e, 0x73, 0x2e, 0x66, 0x61, 0x6b, 0x65, 0x64, 0x6e,
+	0x01, 0x5a, 0x1e, 0x76, 0x32, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x63, 0x6f, 0x72,
-	0x73, 0x2e, 0x46, 0x61, 0x6b, 0x65, 0x44, 0x6e, 0x73, 0x50, 0x6f, 0x6f, 0x6c, 0x52, 0x05, 0x70,
+	0x65, 0x2f, 0x61, 0x70, 0x70, 0x2f, 0x64, 0x6e, 0x73, 0x2f, 0x66, 0x61, 0x6b, 0x65, 0x64, 0x6e,
-	0x6f, 0x6f, 0x6c, 0x73, 0x42, 0x5e, 0x0a, 0x18, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79,
+	0x73, 0xaa, 0x02, 0x1a, 0x56, 0x32, 0x52, 0x61, 0x79, 0x2e, 0x43, 0x6f, 0x72, 0x65, 0x2e, 0x41,
-	0x2e, 0x61, 0x70, 0x70, 0x2e, 0x64, 0x6e, 0x73, 0x2e, 0x66, 0x61, 0x6b, 0x65, 0x64, 0x6e, 0x73,
+	0x70, 0x70, 0x2e, 0x44, 0x6e, 0x73, 0x2e, 0x46, 0x61, 0x6b, 0x65, 0x64, 0x6e, 0x73, 0x62, 0x06,
-	0x50, 0x01, 0x5a, 0x29, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78,
+	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
-	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 (
@@ -154,18 +112,16 @@ func file_app_dns_fakedns_fakedns_proto_rawDescGZIP() []byte {
 	return file_app_dns_fakedns_fakedns_proto_rawDescData
 }
 
-var file_app_dns_fakedns_fakedns_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
+var file_app_dns_fakedns_fakedns_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
-var file_app_dns_fakedns_fakedns_proto_goTypes = []any{
+var file_app_dns_fakedns_fakedns_proto_goTypes = []interface{}{
 	(*FakeDnsPool)(nil), // 0: xray.app.dns.fakedns.FakeDnsPool
-	(*FakeDnsPoolMulti)(nil), // 1: xray.app.dns.fakedns.FakeDnsPoolMulti
 }
 var file_app_dns_fakedns_fakedns_proto_depIdxs = []int32{
-	0, // 0: xray.app.dns.fakedns.FakeDnsPoolMulti.pools:type_name -> xray.app.dns.fakedns.FakeDnsPool
+	0, // [0:0] is the sub-list for method output_type
-	1, // [1:1] is the sub-list for method output_type
+	0, // [0:0] is the sub-list for method input_type
-	1, // [1:1] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
-	1, // [1:1] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
-	1, // [1:1] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
-	0, // [0:1] is the sub-list for field type_name
 }
 
 func init() { file_app_dns_fakedns_fakedns_proto_init() }
@@ -173,13 +129,27 @@ 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:   2,
+			NumMessages:   1,
 			NumExtensions: 0,
 			NumServices:   0,
 		},

app/dns/fakedns/fakedns.proto

@@ -10,7 +10,3 @@ 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
 }
-
-message FakeDnsPoolMulti{
-  repeated FakeDnsPool pools = 1;
-}

app/dns/fakedns/fakedns_test.go

@@ -1,19 +1,19 @@
 package fakedns
 
 import (
-	gonet "net"
-	"strconv"
 	"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"
-	"golang.org/x/sync/errgroup"
 )
 
-var ipPrefix = "198.1"
+var (
+	ipPrefix = "198.18."
+)
 
 func TestNewFakeDnsHolder(_ *testing.T) {
 	_, err := NewFakeDNSHolder()
@@ -67,34 +67,9 @@ func TestFakeDnsHolderCreateMappingManySingleDomain(t *testing.T) {
 	assert.Equal(t, addr[0].IP().String(), addr2[0].IP().String())
 }
 
-func TestGetFakeIPForDomainConcurrently(t *testing.T) {
-	fkdns, err := NewFakeDNSHolder()
-	common.Must(err)
-
-	total := 200
-	addr := make([][]net.Address, total)
-	var errg errgroup.Group
-	for i := 0; i < total; i++ {
-		errg.Go(testGetFakeIP(i, addr, fkdns))
-	}
-	errg.Wait()
-	for i := 0; i < total; i++ {
-		for j := i + 1; j < total; j++ {
-			assert.NotEqual(t, addr[i][0].IP().String(), addr[j][0].IP().String())
-		}
-	}
-}
-
-func testGetFakeIP(index int, addr [][]net.Address, fkdns *Holder) func() error {
-	return func() error {
-		addr[index] = fkdns.GetFakeIPForDomain("fakednstest" + strconv.Itoa(index) + ".example.com")
-		return nil
-	}
-}
-
 func TestFakeDnsHolderCreateMappingAndRollOver(t *testing.T) {
 	fkdns, err := NewFakeDNSHolderConfigOnly(&FakeDnsPool{
-		IpPool:  dns.FakeIPv4Pool,
+		IpPool:  dns.FakeIPPool,
 		LruSize: 256,
 	})
 	common.Must(err)
@@ -128,79 +103,3 @@ func TestFakeDnsHolderCreateMappingAndRollOver(t *testing.T) {
 		}
 	}
 }
-
-func TestFakeDNSMulti(t *testing.T) {
-	fakeMulti, err := NewFakeDNSHolderMulti(&FakeDnsPoolMulti{
-		Pools: []*FakeDnsPool{{
-			IpPool:  "240.0.0.0/12",
-			LruSize: 256,
-		}, {
-			IpPool:  "fddd:c5b4:ff5f:f4f0::/64",
-			LruSize: 256,
-		}},
-	},
-	)
-	common.Must(err)
-
-	err = fakeMulti.Start()
-
-	common.Must(err)
-
-	assert.Nil(t, err, "Should not throw error")
-	_ = fakeMulti
-
-	t.Run("checkInRange", func(t *testing.T) {
-		t.Run("ipv4", func(t *testing.T) {
-			inPool := fakeMulti.IsIPInIPPool(net.IPAddress([]byte{240, 0, 0, 5}))
-			assert.True(t, inPool)
-		})
-		t.Run("ipv6", func(t *testing.T) {
-			ip, err := gonet.ResolveIPAddr("ip", "fddd:c5b4:ff5f:f4f0::5")
-			assert.Nil(t, err)
-			inPool := fakeMulti.IsIPInIPPool(net.IPAddress(ip.IP))
-			assert.True(t, inPool)
-		})
-		t.Run("ipv4_inverse", func(t *testing.T) {
-			inPool := fakeMulti.IsIPInIPPool(net.IPAddress([]byte{241, 0, 0, 5}))
-			assert.False(t, inPool)
-		})
-		t.Run("ipv6_inverse", func(t *testing.T) {
-			ip, err := gonet.ResolveIPAddr("ip", "fcdd:c5b4:ff5f:f4f0::5")
-			assert.Nil(t, err)
-			inPool := fakeMulti.IsIPInIPPool(net.IPAddress(ip.IP))
-			assert.False(t, inPool)
-		})
-	})
-
-	t.Run("allocateTwoAddressForTwoPool", func(t *testing.T) {
-		address := fakeMulti.GetFakeIPForDomain("fakednstest.example.com")
-		assert.Len(t, address, 2, "should be 2 address one for each pool")
-		t.Run("eachOfThemShouldResolve:0", func(t *testing.T) {
-			domain := fakeMulti.GetDomainFromFakeDNS(address[0])
-			assert.Equal(t, "fakednstest.example.com", domain)
-		})
-		t.Run("eachOfThemShouldResolve:1", func(t *testing.T) {
-			domain := fakeMulti.GetDomainFromFakeDNS(address[1])
-			assert.Equal(t, "fakednstest.example.com", domain)
-		})
-	})
-
-	t.Run("understandIPTypeSelector", func(t *testing.T) {
-		t.Run("ipv4", func(t *testing.T) {
-			address := fakeMulti.GetFakeIPForDomain3("fakednstestipv4.example.com", true, false)
-			assert.Len(t, address, 1, "should be 1 address")
-			assert.True(t, address[0].Family().IsIPv4())
-		})
-		t.Run("ipv6", func(t *testing.T) {
-			address := fakeMulti.GetFakeIPForDomain3("fakednstestipv6.example.com", false, true)
-			assert.Len(t, address, 1, "should be 1 address")
-			assert.True(t, address[0].Family().IsIPv6())
-		})
-		t.Run("ipv46", func(t *testing.T) {
-			address := fakeMulti.GetFakeIPForDomain3("fakednstestipv46.example.com", true, true)
-			assert.Len(t, address, 2, "should be 2 address")
-			assert.True(t, address[0].Family().IsIPv4())
-			assert.True(t, address[1].Family().IsIPv6())
-		})
-	})
-}

app/dns/hosts.go

@@ -1,11 +1,10 @@
 package dns
 
 import (
-	"context"
+	"github.com/xtls/xray-core/common"
-
-	"github.com/xtls/xray-core/common/errors"
 	"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"
 )
 
@@ -16,33 +15,52 @@ type StaticHosts struct {
 }
 
 // NewStaticHosts creates a new StaticHosts instance.
-func NewStaticHosts(hosts []*Config_HostMapping) (*StaticHosts, error) {
+func NewStaticHosts(hosts []*Config_HostMapping, legacy map[string]*net.IPOrDomain) (*StaticHosts, error) {
 	g := new(strmatcher.MatcherGroup)
 	sh := &StaticHosts{
-		ips:      make([][]net.Address, len(hosts)+16),
+		ips:      make([][]net.Address, len(hosts)+len(legacy)+16),
 		matchers: g,
 	}
 
+	if legacy != nil {
+		features.PrintDeprecatedFeatureWarning("simple host mapping")
+
+		for domain, ip := range legacy {
+			matcher, err := strmatcher.Full.New(domain)
+			common.Must(err)
+			id := g.Add(matcher)
+
+			address := ip.AsAddress()
+			if address.Family().IsDomain() {
+				return nil, newError("invalid domain address in static hosts: ", address.Domain()).AtWarning()
+			}
+
+			sh.ips[id] = []net.Address{address}
+		}
+	}
+
 	for _, mapping := range hosts {
 		matcher, err := toStrMatcher(mapping.Type, mapping.Domain)
 		if err != nil {
-			return nil, errors.New("failed to create domain matcher").Base(err)
+			return nil, newError("failed to create domain matcher").Base(err)
 		}
 		id := g.Add(matcher)
 		ips := make([]net.Address, 0, len(mapping.Ip)+1)
 		switch {
 		case len(mapping.ProxiedDomain) > 0:
 			ips = append(ips, net.DomainAddress(mapping.ProxiedDomain))
+
 		case len(mapping.Ip) > 0:
 			for _, ip := range mapping.Ip {
 				addr := net.IPAddress(ip)
 				if addr == nil {
-					return nil, errors.New("invalid IP address in static hosts: ", ip).AtWarning()
+					return nil, newError("invalid IP address in static hosts: ", ip).AtWarning()
 				}
 				ips = append(ips, addr)
 			}
+
 		default:
-			return nil, errors.New("neither IP address nor proxied domain specified for domain: ", mapping.Domain).AtWarning()
+			return nil, newError("neither IP address nor proxied domain specified for domain: ", mapping.Domain).AtWarning()
 		}
 
 		sh.ips[id] = ips
@@ -51,7 +69,7 @@ func NewStaticHosts(hosts []*Config_HostMapping) (*StaticHosts, error) {
 	return sh, nil
 }
 
-func filterIP(ips []net.Address, option dns.IPOption) []net.Address {
+func filterIP(ips []net.Address, option *dns.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) {
@@ -66,15 +84,18 @@ func (h *StaticHosts) lookupInternal(domain string) []net.Address {
 	for _, id := range h.matchers.Match(domain) {
 		ips = append(ips, h.ips[id]...)
 	}
+	if len(ips) == 1 && ips[0].Family().IsDomain() {
+		return ips
+	}
 	return ips
 }
 
-func (h *StaticHosts) lookup(domain string, option dns.IPOption, maxDepth int) []net.Address {
+func (h *StaticHosts) lookup(domain string, option *dns.IPOption, maxDepth int) []net.Address {
 	switch addrs := h.lookupInternal(domain); {
 	case len(addrs) == 0: // Not recorded in static hosts, return nil
 		return nil
 	case len(addrs) == 1 && addrs[0].Family().IsDomain(): // Try to unwrap domain
-		errors.LogDebug(context.Background(), "found replaced domain: ", domain, " -> ", addrs[0].Domain(), ". Try to unwrap it")
+		newError("found replaced domain: ", domain, " -> ", addrs[0].Domain(), ". Try to unwrap it").AtDebug().WriteToLog()
 		if maxDepth > 0 {
 			unwrapped := h.lookup(addrs[0].Domain(), option, maxDepth-1)
 			if unwrapped != nil {
@@ -88,6 +109,6 @@ func (h *StaticHosts) lookup(domain string, option dns.IPOption, maxDepth int) [
 }
 
 // Lookup returns IP addresses or proxied domain for the given domain, if exists in this StaticHosts.
-func (h *StaticHosts) Lookup(domain string, option dns.IPOption) []net.Address {
+func (h *StaticHosts) Lookup(domain string, option *dns.IPOption) []net.Address {
 	return h.lookup(domain, option, 5)
 }

app/dns/hosts_test.go

@@ -4,6 +4,7 @@ import (
 	"testing"
 
 	"github.com/google/go-cmp/cmp"
+
 	. "github.com/xtls/xray-core/app/dns"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/net"
@@ -21,17 +22,17 @@ func TestStaticHosts(t *testing.T) {
 		},
 		{
 			Type:   DomainMatchingType_Full,
-			Domain: "proxy.xray.com",
+			Domain: "proxy.example.com",
 			Ip: [][]byte{
 				{1, 2, 3, 4},
 				{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1},
 			},
-			ProxiedDomain: "another-proxy.xray.com",
+			ProxiedDomain: "another-proxy.example.com",
 		},
 		{
 			Type:          DomainMatchingType_Full,
-			Domain:        "proxy2.xray.com",
+			Domain:        "proxy2.example.com",
-			ProxiedDomain: "proxy.xray.com",
+			ProxiedDomain: "proxy.example.com",
 		},
 		{
 			Type:   DomainMatchingType_Subdomain,
@@ -50,11 +51,11 @@ func TestStaticHosts(t *testing.T) {
 		},
 	}
 
-	hosts, err := NewStaticHosts(pb)
+	hosts, err := NewStaticHosts(pb, nil)
 	common.Must(err)
 
 	{
-		ips := hosts.Lookup("example.com", dns.IPOption{
+		ips := hosts.Lookup("example.com", &dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 		})
@@ -67,33 +68,33 @@ func TestStaticHosts(t *testing.T) {
 	}
 
 	{
-		domain := hosts.Lookup("proxy.xray.com", dns.IPOption{
+		domain := hosts.Lookup("proxy.example.com", &dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: false,
 		})
 		if len(domain) != 1 {
 			t.Error("expect 1 domain, but got ", len(domain))
 		}
-		if diff := cmp.Diff(domain[0].Domain(), "another-proxy.xray.com"); diff != "" {
+		if diff := cmp.Diff(domain[0].Domain(), "another-proxy.example.com"); diff != "" {
 			t.Error(diff)
 		}
 	}
 
 	{
-		domain := hosts.Lookup("proxy2.xray.com", dns.IPOption{
+		domain := hosts.Lookup("proxy2.example.com", &dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: false,
 		})
 		if len(domain) != 1 {
 			t.Error("expect 1 domain, but got ", len(domain))
 		}
-		if diff := cmp.Diff(domain[0].Domain(), "another-proxy.xray.com"); diff != "" {
+		if diff := cmp.Diff(domain[0].Domain(), "another-proxy.example.com"); diff != "" {
 			t.Error(diff)
 		}
 	}
 
 	{
-		ips := hosts.Lookup("www.example.cn", dns.IPOption{
+		ips := hosts.Lookup("www.example.cn", &dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 		})
@@ -106,7 +107,7 @@ func TestStaticHosts(t *testing.T) {
 	}
 
 	{
-		ips := hosts.Lookup("baidu.com", dns.IPOption{
+		ips := hosts.Lookup("baidu.com", &dns.IPOption{
 			IPv4Enable: false,
 			IPv6Enable: true,
 		})

app/dns/nameserver.go

@@ -10,7 +10,7 @@ import (
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/strmatcher"
-	"github.com/xtls/xray-core/core"
+	core "github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/dns"
 	"github.com/xtls/xray-core/features/routing"
 )
@@ -20,7 +20,7 @@ type Server interface {
 	// Name of the Client.
 	Name() string
 	// QueryIP sends IP queries to its configured server.
-	QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns.IPOption, disableCache bool) ([]net.IP, error)
+	QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns.IPOption, cs CacheStrategy) ([]net.IP, error)
 }
 
 // Client is the interface for DNS client.
@@ -35,7 +35,7 @@ type Client struct {
 var errExpectedIPNonMatch = errors.New("expectIPs not match")
 
 // NewServer creates a name server object according to the network destination url.
-func NewServer(dest net.Destination, dispatcher routing.Dispatcher, queryStrategy QueryStrategy) (Server, error) {
+func NewServer(dest net.Destination, dispatcher routing.Dispatcher) (Server, error) {
 	if address := dest.Address; address.Family().IsDomain() {
 		u, err := url.Parse(address.Domain())
 		if err != nil {
@@ -45,15 +45,11 @@ func NewServer(dest net.Destination, dispatcher routing.Dispatcher, queryStrateg
 		case strings.EqualFold(u.String(), "localhost"):
 			return NewLocalNameServer(), nil
 		case strings.EqualFold(u.Scheme, "https"): // DOH Remote mode
-			return NewDoHNameServer(u, dispatcher, queryStrategy)
+			return NewDoHNameServer(u, dispatcher)
 		case strings.EqualFold(u.Scheme, "https+local"): // DOH Local mode
-			return NewDoHLocalNameServer(u, queryStrategy), nil
+			return NewDoHLocalNameServer(u), nil
 		case strings.EqualFold(u.Scheme, "quic+local"): // DNS-over-QUIC Local mode
-			return NewQUICNameServer(u, queryStrategy)
+			return NewQUICNameServer(u)
-		case strings.EqualFold(u.Scheme, "tcp"): // DNS-over-TCP Remote mode
-			return NewTCPNameServer(u, dispatcher, queryStrategy)
-		case strings.EqualFold(u.Scheme, "tcp+local"): // DNS-over-TCP Local mode
-			return NewTCPLocalNameServer(u, queryStrategy)
 		case strings.EqualFold(u.String(), "fakedns"):
 			return NewFakeDNSServer(), nil
 		}
@@ -62,42 +58,32 @@ func NewServer(dest net.Destination, dispatcher routing.Dispatcher, queryStrateg
 		dest.Network = net.Network_UDP
 	}
 	if dest.Network == net.Network_UDP { // UDP classic DNS mode
-		return NewClassicNameServer(dest, dispatcher, queryStrategy), nil
+		return NewClassicNameServer(dest, dispatcher), nil
 	}
-	return nil, errors.New("No available name server could be created from ", dest).AtWarning()
+	return nil, newError("No available name server could be created from ", dest).AtWarning()
 }
 
 // NewClient creates a DNS client managing a name server with client IP, domain rules and expected IPs.
-func NewClient(
+func NewClient(ctx context.Context, ns *NameServer, clientIP net.IP, container router.GeoIPMatcherContainer, matcherInfos *[]DomainMatcherInfo, updateDomainRule func(strmatcher.Matcher, int, []DomainMatcherInfo) error) (*Client, error) {
-	ctx context.Context,
-	ns *NameServer,
-	clientIP net.IP,
-	container router.GeoIPMatcherContainer,
-	matcherInfos *[]*DomainMatcherInfo,
-	updateDomainRule func(strmatcher.Matcher, int, []*DomainMatcherInfo) error,
-) (*Client, error) {
 	client := &Client{}
 
 	err := core.RequireFeatures(ctx, func(dispatcher routing.Dispatcher) error {
 		// Create a new server for each client for now
-		server, err := NewServer(ns.Address.AsDestination(), dispatcher, ns.GetQueryStrategy())
+		server, err := NewServer(ns.Address.AsDestination(), dispatcher)
 		if err != nil {
-			return errors.New("failed to create nameserver").Base(err).AtWarning()
+			return newError("failed to create nameserver").Base(err).AtWarning()
 		}
 
-		// Prioritize local domains with specific TLDs or those without any dot for the local DNS
+		// Priotize local domains with specific TLDs or without any dot to local DNS
 		if _, isLocalDNS := server.(*LocalNameServer); isLocalDNS {
 			ns.PrioritizedDomain = append(ns.PrioritizedDomain, localTLDsAndDotlessDomains...)
 			ns.OriginalRules = append(ns.OriginalRules, localTLDsAndDotlessDomainsRule)
 			// The following lines is a solution to avoid core panics（rule index out of range） when setting `localhost` DNS client in config.
-			// Because the `localhost` DNS client will append len(localTLDsAndDotlessDomains) rules into matcherInfos to match `geosite:private` default rule.
+			// Because the `localhost` DNS client will apend len(localTLDsAndDotlessDomains) rules into matcherInfos to match `geosite:private` default rule.
 			// But `matcherInfos` has no enough length to add rules, which leads to core panics (rule index out of range).
 			// To avoid this, the length of `matcherInfos` must be equal to the expected, so manually append it with Golang default zero value first for later modification.
-			// Related issues:
-			// https://github.com/v2fly/v2ray-core/issues/529
-			// https://github.com/v2fly/v2ray-core/issues/719
 			for i := 0; i < len(localTLDsAndDotlessDomains); i++ {
-				*matcherInfos = append(*matcherInfos, &DomainMatcherInfo{
+				*matcherInfos = append(*matcherInfos, DomainMatcherInfo{
 					clientIdx:     uint16(0),
 					domainRuleIdx: uint16(0),
 				})
@@ -111,7 +97,7 @@ func NewClient(
 		for _, domain := range ns.PrioritizedDomain {
 			domainRule, err := toStrMatcher(domain.Type, domain.Domain)
 			if err != nil {
-				return errors.New("failed to create prioritized domain").Base(err).AtWarning()
+				return newError("failed to create prioritized domain").Base(err).AtWarning()
 			}
 			originalRuleIdx := ruleCurr
 			if ruleCurr < len(ns.OriginalRules) {
@@ -130,7 +116,7 @@ func NewClient(
 			}
 			err = updateDomainRule(domainRule, originalRuleIdx, *matcherInfos)
 			if err != nil {
-				return errors.New("failed to create prioritized domain").Base(err).AtWarning()
+				return newError("failed to create prioritized domain").Base(err).AtWarning()
 			}
 		}
 
@@ -139,7 +125,7 @@ func NewClient(
 		for _, geoip := range ns.Geoip {
 			matcher, err := container.Add(geoip)
 			if err != nil {
-				return errors.New("failed to create ip matcher").Base(err).AtWarning()
+				return newError("failed to create ip matcher").Base(err).AtWarning()
 			}
 			matchers = append(matchers, matcher)
 		}
@@ -147,15 +133,14 @@ func NewClient(
 		if len(clientIP) > 0 {
 			switch ns.Address.Address.GetAddress().(type) {
 			case *net.IPOrDomain_Domain:
-				errors.LogInfo(ctx, "DNS: client ", ns.Address.Address.GetDomain(), " uses clientIP ", clientIP.String())
+				newError("DNS: client ", ns.Address.Address.GetDomain(), " uses clientIP ", clientIP.String()).AtInfo().WriteToLog()
 			case *net.IPOrDomain_Ip:
-				errors.LogInfo(ctx, "DNS: client ", ns.Address.Address.GetIp(), " uses clientIP ", clientIP.String())
+				newError("DNS: client ", ns.Address.Address.GetIp(), " uses clientIP ", clientIP.String()).AtInfo().WriteToLog()
 			}
 		}
 
 		client.server = server
 		client.clientIP = clientIP
-		client.skipFallback = ns.SkipFallback
 		client.domains = rules
 		client.expectIPs = matchers
 		return nil
@@ -163,15 +148,40 @@ func NewClient(
 	return client, err
 }
 
+// NewSimpleClient creates a DNS client with a simple destination.
+func NewSimpleClient(ctx context.Context, endpoint *net.Endpoint, clientIP net.IP) (*Client, error) {
+	client := &Client{}
+	err := core.RequireFeatures(ctx, func(dispatcher routing.Dispatcher) error {
+		server, err := NewServer(endpoint.AsDestination(), dispatcher)
+		if err != nil {
+			return newError("failed to create nameserver").Base(err).AtWarning()
+		}
+		client.server = server
+		client.clientIP = clientIP
+		return nil
+	})
+
+	if len(clientIP) > 0 {
+		switch endpoint.Address.GetAddress().(type) {
+		case *net.IPOrDomain_Domain:
+			newError("DNS: client ", endpoint.Address.GetDomain(), " uses clientIP ", clientIP.String()).AtInfo().WriteToLog()
+		case *net.IPOrDomain_Ip:
+			newError("DNS: client ", endpoint.Address.GetIp(), " uses clientIP ", clientIP.String()).AtInfo().WriteToLog()
+		}
+	}
+
+	return client, err
+}
+
 // Name returns the server name the client manages.
 func (c *Client) Name() string {
 	return c.server.Name()
 }
 
-// QueryIP sends DNS query to the name server with the client's IP.
+// QueryIP send DNS query to the name server with the client's IP.
-func (c *Client) QueryIP(ctx context.Context, domain string, option dns.IPOption, disableCache bool) ([]net.IP, error) {
+func (c *Client) QueryIP(ctx context.Context, domain string, option dns.IPOption, cs CacheStrategy) ([]net.IP, error) {
 	ctx, cancel := context.WithTimeout(ctx, 4*time.Second)
-	ips, err := c.server.QueryIP(ctx, domain, c.clientIP, option, disableCache)
+	ips, err := c.server.QueryIP(ctx, domain, c.clientIP, option, cs)
 	cancel()
 
 	if err != nil {
@@ -197,27 +207,6 @@ func (c *Client) MatchExpectedIPs(domain string, ips []net.IP) ([]net.IP, error)
 	if len(newIps) == 0 {
 		return nil, errExpectedIPNonMatch
 	}
-	errors.LogDebug(context.Background(), "domain ", domain, " expectIPs ", newIps, " matched at server ", c.Name())
+	newError("domain ", domain, " expectIPs ", newIps, " matched at server ", c.Name()).AtDebug().WriteToLog()
 	return newIps, nil
 }
-
-func ResolveIpOptionOverride(queryStrategy QueryStrategy, ipOption dns.IPOption) dns.IPOption {
-	switch queryStrategy {
-	case QueryStrategy_USE_IP:
-		return ipOption
-	case QueryStrategy_USE_IP4:
-		return dns.IPOption{
-			IPv4Enable: ipOption.IPv4Enable,
-			IPv6Enable: false,
-			FakeEnable: false,
-		}
-	case QueryStrategy_USE_IP6:
-		return dns.IPOption{
-			IPv4Enable: false,
-			IPv6Enable: ipOption.IPv6Enable,
-			FakeEnable: false,
-		}
-	default:
-		return ipOption
-	}
-}

app/dns/nameserver_doh.go

@@ -5,6 +5,7 @@ import (
 	"context"
 	"fmt"
 	"io"
+	"io/ioutil"
 	"net/http"
 	"net/url"
 	"sync"
@@ -12,7 +13,6 @@ import (
 	"time"
 
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/log"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/net/cnc"
@@ -32,20 +32,20 @@ import (
 type DoHNameServer struct {
 	dispatcher routing.Dispatcher
 	sync.RWMutex
-	ips           map[string]*record
+	ips        map[string]record
 	pub        *pubsub.Service
 	cleanup    *task.Periodic
 	reqID      uint32
+	clientIP   net.IP
 	httpClient *http.Client
 	dohURL     string
 	name       string
-	queryStrategy QueryStrategy
 }
 
-// NewDoHNameServer creates DOH server object for remote resolving.
+// NewDoHNameServer creates DOH server object for remote resolving
-func NewDoHNameServer(url *url.URL, dispatcher routing.Dispatcher, queryStrategy QueryStrategy) (*DoHNameServer, error) {
+func NewDoHNameServer(url *url.URL, dispatcher routing.Dispatcher) (*DoHNameServer, error) {
-	errors.LogInfo(context.Background(), "DNS: created Remote DOH client for ", url.String())
+	newError("DNS: created Remote DOH client for ", url.String()).AtInfo().WriteToLog()
-	s := baseDOHNameServer(url, "DOH", queryStrategy)
+	s := baseDOHNameServer(url, "DOH")
 
 	s.dispatcher = dispatcher
 	tr := &http.Transport{
@@ -54,11 +54,23 @@ func NewDoHNameServer(url *url.URL, dispatcher routing.Dispatcher, queryStrategy
 		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
 			}
-			link, err := s.dispatcher.Dispatch(toDnsContext(ctx, s.dohURL), dest)
+
+			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()
@@ -68,6 +80,12 @@ func NewDoHNameServer(url *url.URL, dispatcher routing.Dispatcher, queryStrategy
 			if err != nil {
 				return nil, err
 			}
+			log.Record(&log.AccessMessage{
+				From:   "DoH",
+				To:     s.dohURL,
+				Status: log.AccessAccepted,
+				Detour: "local",
+			})
 
 			cc := common.ChainedClosable{}
 			if cw, ok := link.Writer.(common.Closable); ok {
@@ -92,9 +110,9 @@ func NewDoHNameServer(url *url.URL, dispatcher routing.Dispatcher, queryStrategy
 }
 
 // NewDoHLocalNameServer creates DOH client object for local resolving
-func NewDoHLocalNameServer(url *url.URL, queryStrategy QueryStrategy) *DoHNameServer {
+func NewDoHLocalNameServer(url *url.URL) *DoHNameServer {
 	url.Scheme = "https"
-	s := baseDOHNameServer(url, "DOHL", queryStrategy)
+	s := baseDOHNameServer(url, "DOHL")
 	tr := &http.Transport{
 		IdleConnTimeout:   90 * time.Second,
 		ForceAttemptHTTP2: true,
@@ -105,7 +123,7 @@ func NewDoHLocalNameServer(url *url.URL, queryStrategy QueryStrategy) *DoHNameSe
 			}
 			conn, err := internet.DialSystem(ctx, dest, nil)
 			log.Record(&log.AccessMessage{
-				From:   "DNS",
+				From:   "DoH",
 				To:     s.dohURL,
 				Status: log.AccessAccepted,
 				Detour: "local",
@@ -120,22 +138,22 @@ func NewDoHLocalNameServer(url *url.URL, queryStrategy QueryStrategy) *DoHNameSe
 		Timeout:   time.Second * 180,
 		Transport: tr,
 	}
-	errors.LogInfo(context.Background(), "DNS: created Local DOH client for ", url.String())
+	newError("DNS: created Local DOH client for ", url.String()).AtInfo().WriteToLog()
 	return s
 }
 
-func baseDOHNameServer(url *url.URL, prefix string, queryStrategy QueryStrategy) *DoHNameServer {
+func baseDOHNameServer(url *url.URL, prefix string) *DoHNameServer {
 	s := &DoHNameServer{
-		ips:           make(map[string]*record),
+		ips:    make(map[string]record),
 		pub:    pubsub.NewService(),
 		name:   prefix + "//" + url.Host,
 		dohURL: url.String(),
-		queryStrategy: queryStrategy,
 	}
 	s.cleanup = &task.Periodic{
 		Interval: time.Minute,
 		Execute:  s.Cleanup,
 	}
+
 	return s
 }
 
@@ -151,7 +169,7 @@ func (s *DoHNameServer) Cleanup() error {
 	defer s.Unlock()
 
 	if len(s.ips) == 0 {
-		return errors.New("nothing to do. stopping...")
+		return newError("nothing to do. stopping...")
 	}
 
 	for domain, record := range s.ips {
@@ -163,7 +181,7 @@ func (s *DoHNameServer) Cleanup() error {
 		}
 
 		if record.A == nil && record.AAAA == nil {
-			errors.LogDebug(context.Background(), s.name, " cleanup ", domain)
+			newError(s.name, " cleanup ", domain).AtDebug().WriteToLog()
 			delete(s.ips, domain)
 		} else {
 			s.ips[domain] = record
@@ -171,7 +189,7 @@ func (s *DoHNameServer) Cleanup() error {
 	}
 
 	if len(s.ips) == 0 {
-		s.ips = make(map[string]*record)
+		s.ips = make(map[string]record)
 	}
 
 	return nil
@@ -181,10 +199,7 @@ func (s *DoHNameServer) updateIP(req *dnsRequest, ipRec *IPRecord) {
 	elapsed := time.Since(req.start)
 
 	s.Lock()
-	rec, found := s.ips[req.domain]
+	rec := s.ips[req.domain]
-	if !found {
-		rec = &record{}
-	}
 	updated := false
 
 	switch req.reqType {
@@ -194,7 +209,7 @@ func (s *DoHNameServer) updateIP(req *dnsRequest, ipRec *IPRecord) {
 			updated = true
 		}
 	case dnsmessage.TypeAAAA:
-		addr := make([]net.Address, 0, len(ipRec.IP))
+		addr := make([]net.Address, 0)
 		for _, ip := range ipRec.IP {
 			if len(ip.IP()) == net.IPv6len {
 				addr = append(addr, ip)
@@ -206,7 +221,7 @@ func (s *DoHNameServer) updateIP(req *dnsRequest, ipRec *IPRecord) {
 			updated = true
 		}
 	}
-	errors.LogInfo(context.Background(), s.name, " got answer: ", req.domain, " ", req.reqType, " -> ", ipRec.IP, " ", elapsed)
+	newError(s.name, " got answer: ", req.domain, " ", req.reqType, " -> ", ipRec.IP, " ", elapsed).AtInfo().WriteToLog()
 
 	if updated {
 		s.ips[req.domain] = rec
@@ -226,10 +241,10 @@ func (s *DoHNameServer) newReqID() uint16 {
 }
 
 func (s *DoHNameServer) sendQuery(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption) {
-	errors.LogInfo(ctx, s.name, " querying: ", domain)
+	newError(s.name, " querying: ", domain).AtInfo().WriteToLog(session.ExportIDToError(ctx))
 
 	if s.name+"." == "DOH//"+domain {
-		errors.LogError(ctx, s.name, " tries to resolve itself! Use IP or set \"hosts\" instead.")
+		newError(s.name, " tries to resolve itself! Use IP or set \"hosts\" instead.").AtError().WriteToLog(session.ExportIDToError(ctx))
 		return
 	}
 
@@ -246,7 +261,7 @@ func (s *DoHNameServer) sendQuery(ctx context.Context, domain string, clientIP n
 		go func(r *dnsRequest) {
 			// generate new context for each req, using same context
 			// may cause reqs all aborted if any one encounter an error
-			dnsCtx := ctx
+			dnsCtx := context.Background()
 
 			// reserve internal dns server requested Inbound
 			if inbound := session.InboundFromContext(ctx); inbound != nil {
@@ -259,7 +274,7 @@ func (s *DoHNameServer) sendQuery(ctx context.Context, domain string, clientIP n
 			})
 
 			// forced to use mux for DOH
-			// dnsCtx = session.ContextWithMuxPreferred(dnsCtx, true)
+			// dnsCtx = session.ContextWithMuxPrefered(dnsCtx, true)
 
 			var cancel context.CancelFunc
 			dnsCtx, cancel = context.WithDeadline(dnsCtx, deadline)
@@ -267,17 +282,17 @@ func (s *DoHNameServer) sendQuery(ctx context.Context, domain string, clientIP n
 
 			b, err := dns.PackMessage(r.msg)
 			if err != nil {
-				errors.LogErrorInner(ctx, err, "failed to pack dns query for ", domain)
+				newError("failed to pack dns query for ", domain).Base(err).AtError().WriteToLog()
 				return
 			}
 			resp, err := s.dohHTTPSContext(dnsCtx, b.Bytes())
 			if err != nil {
-				errors.LogErrorInner(ctx, err, "failed to retrieve response for ", domain)
+				newError("failed to retrieve response for ", domain).Base(err).AtError().WriteToLog()
 				return
 			}
 			rec, err := parseResponse(resp)
 			if err != nil {
-				errors.LogErrorInner(ctx, err, "failed to handle DOH response for ", domain)
+				newError("failed to handle DOH response for ", domain).Base(err).AtError().WriteToLog()
 				return
 			}
 			s.updateIP(r, rec)
@@ -304,11 +319,11 @@ func (s *DoHNameServer) dohHTTPSContext(ctx context.Context, b []byte) ([]byte,
 
 	defer resp.Body.Close()
 	if resp.StatusCode != http.StatusOK {
-		io.Copy(io.Discard, resp.Body) // flush resp.Body so that the conn is reusable
+		io.Copy(ioutil.Discard, resp.Body) // flush resp.Body so that the conn is reusable
 		return nil, fmt.Errorf("DOH server returned code %d", resp.StatusCode)
 	}
 
-	return io.ReadAll(resp.Body)
+	return ioutil.ReadAll(resp.Body)
 }
 
 func (s *DoHNameServer) findIPsForDomain(domain string, option dns_feature.IPOption) ([]net.IP, error) {
@@ -320,30 +335,30 @@ func (s *DoHNameServer) findIPsForDomain(domain string, option dns_feature.IPOpt
 		return nil, errRecordNotFound
 	}
 
-	var err4 error
-	var err6 error
 	var ips []net.Address
-	var ip6 []net.Address
+	var lastErr error
-
+	if option.IPv6Enable && record.AAAA != nil && record.AAAA.RCode == dnsmessage.RCodeSuccess {
-	if option.IPv4Enable {
+		aaaa, err := record.AAAA.getIPs()
-		ips, err4 = record.A.getIPs()
+		if err != nil {
+			lastErr = err
+		}
+		ips = append(ips, aaaa...)
 	}
 
-	if option.IPv6Enable {
+	if option.IPv4Enable && record.A != nil && record.A.RCode == dnsmessage.RCodeSuccess {
-		ip6, err6 = record.AAAA.getIPs()
+		a, err := record.A.getIPs()
-		ips = append(ips, ip6...)
+		if err != nil {
+			lastErr = err
+		}
+		ips = append(ips, a...)
 	}
 
 	if len(ips) > 0 {
 		return toNetIP(ips)
 	}
 
-	if err4 != nil {
+	if lastErr != nil {
-		return nil, err4
+		return nil, lastErr
-	}
-
-	if err6 != nil {
-		return nil, err6
 	}
 
 	if (option.IPv4Enable && record.A != nil) || (option.IPv6Enable && record.AAAA != nil) {
@@ -354,23 +369,21 @@ func (s *DoHNameServer) findIPsForDomain(domain string, option dns_feature.IPOpt
 }
 
 // QueryIP implements Server.
-func (s *DoHNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, disableCache bool) ([]net.IP, error) { // nolint: dupl
+func (s *DoHNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, cs CacheStrategy) ([]net.IP, error) { // nolint: dupl
 	fqdn := Fqdn(domain)
-	option = ResolveIpOptionOverride(s.queryStrategy, option)
-	if !option.IPv4Enable && !option.IPv6Enable {
-		return nil, dns_feature.ErrEmptyResponse
-	}
 
-	if disableCache {
+	if cs == CacheStrategy_Cache_DISABLE {
-		errors.LogDebug(ctx, "DNS cache is disabled. Querying IP for ", domain, " at ", s.name)
+		newError("DNS cache is disabled. Querying IP for ", domain, " at ", s.name).AtDebug().WriteToLog()
 	} else {
 		ips, err := s.findIPsForDomain(fqdn, option)
-		if err == nil || err == dns_feature.ErrEmptyResponse {
+		if err != errRecordNotFound {
-			errors.LogDebugInner(ctx, err, s.name, " cache HIT ", domain, " -> ", ips)
+			if cs == CacheStrategy_Cache_NOERROR && err == nil {
-			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSCacheHit, Elapsed: 0, Error: err})
+				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
 			}
 		}
+	}
 
 	// ipv4 and ipv6 belong to different subscription groups
 	var sub4, sub6 *pubsub.Subscriber
@@ -404,7 +417,7 @@ func (s *DoHNameServer) QueryIP(ctx context.Context, domain string, clientIP net
 	for {
 		ips, err := s.findIPsForDomain(fqdn, option)
 		if err != errRecordNotFound {
-			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSQueried, Elapsed: time.Since(start), Error: err})
+			log.Record(&log.DNSLog{s.name, domain, ips, log.DNSQueried, time.Since(start), err})
 			return ips, err
 		}
 

app/dns/nameserver_doh_test.go

@@ -7,6 +7,7 @@ import (
 	"time"
 
 	"github.com/google/go-cmp/cmp"
+
 	. "github.com/xtls/xray-core/app/dns"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/net"
@@ -17,12 +18,12 @@ func TestDOHNameServer(t *testing.T) {
 	url, err := url.Parse("https+local://1.1.1.1/dns-query")
 	common.Must(err)
 
-	s := NewDoHLocalNameServer(url, QueryStrategy_USE_IP)
+	s := NewDoHLocalNameServer(url)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
 	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
-	}, false)
+	}, CacheStrategy_Cache_ALL)
 	cancel()
 	common.Must(err)
 	if len(ips) == 0 {
@@ -34,72 +35,26 @@ func TestDOHNameServerWithCache(t *testing.T) {
 	url, err := url.Parse("https+local://1.1.1.1/dns-query")
 	common.Must(err)
 
-	s := NewDoHLocalNameServer(url, QueryStrategy_USE_IP)
+	s := NewDoHLocalNameServer(url)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
 	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
-	}, false)
+	}, CacheStrategy_Cache_ALL)
 	cancel()
 	common.Must(err)
 	if len(ips) == 0 {
 		t.Error("expect some ips, but got 0")
 	}
 
-	ctx2, cancel := context.WithTimeout(context.Background(), time.Second*5)
+	ctx2, cancel := context.WithTimeout(context.Background(), time.Second*2)
 	ips2, err := s.QueryIP(ctx2, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
-	}, true)
+	}, CacheStrategy_Cache_ALL)
 	cancel()
 	common.Must(err)
 	if r := cmp.Diff(ips2, ips); r != "" {
 		t.Fatal(r)
 	}
 }
-
-func TestDOHNameServerWithIPv4Override(t *testing.T) {
-	url, err := url.Parse("https+local://1.1.1.1/dns-query")
-	common.Must(err)
-
-	s := NewDoHLocalNameServer(url, QueryStrategy_USE_IP4)
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
-		IPv4Enable: true,
-		IPv6Enable: true,
-	}, false)
-	cancel()
-	common.Must(err)
-	if len(ips) == 0 {
-		t.Error("expect some ips, but got 0")
-	}
-
-	for _, ip := range ips {
-		if len(ip) != net.IPv4len {
-			t.Error("expect only IPv4 response from DNS query")
-		}
-	}
-}
-
-func TestDOHNameServerWithIPv6Override(t *testing.T) {
-	url, err := url.Parse("https+local://1.1.1.1/dns-query")
-	common.Must(err)
-
-	s := NewDoHLocalNameServer(url, QueryStrategy_USE_IP6)
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
-		IPv4Enable: true,
-		IPv6Enable: true,
-	}, false)
-	cancel()
-	common.Must(err)
-	if len(ips) == 0 {
-		t.Error("expect some ips, but got 0")
-	}
-
-	for _, ip := range ips {
-		if len(ip) != net.IPv6len {
-			t.Error("expect only IPv6 response from DNS query")
-		}
-	}
-}

app/dns/nameserver_fakedns.go

@@ -3,7 +3,6 @@ package dns
 import (
 	"context"
 
-	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/dns"
@@ -17,34 +16,28 @@ func NewFakeDNSServer() *FakeDNSServer {
 	return &FakeDNSServer{}
 }
 
+const FakeDNSName = "FakeDNS"
+
 func (FakeDNSServer) Name() string {
-	return "FakeDNS"
+	return FakeDNSName
 }
 
-func (f *FakeDNSServer) QueryIP(ctx context.Context, domain string, _ net.IP, opt dns.IPOption, _ bool) ([]net.IP, error) {
+func (f *FakeDNSServer) QueryIP(ctx context.Context, domain string, _ net.IP, _ dns.IPOption, _ CacheStrategy) ([]net.IP, error) {
 	if f.fakeDNSEngine == nil {
 		if err := core.RequireFeatures(ctx, func(fd dns.FakeDNSEngine) {
 			f.fakeDNSEngine = fd
 		}); err != nil {
-			return nil, errors.New("Unable to locate a fake DNS Engine").Base(err).AtError()
+			return nil, newError("Unable to locate a fake DNS Engine").Base(err).AtError()
 		}
 	}
-	var ips []net.Address
+	ips := f.fakeDNSEngine.GetFakeIPForDomain(domain)
-	if fkr0, ok := f.fakeDNSEngine.(dns.FakeDNSEngineRev0); ok {
-		ips = fkr0.GetFakeIPForDomain3(domain, opt.IPv4Enable, opt.IPv6Enable)
-	} else {
-		ips = f.fakeDNSEngine.GetFakeIPForDomain(domain)
-	}
 
 	netIP, err := toNetIP(ips)
 	if err != nil {
-		return nil, errors.New("Unable to convert IP to net ip").Base(err).AtError()
+		return nil, newError("Unable to convert IP to net ip").Base(err).AtError()
 	}
 
-	errors.LogInfo(ctx, f.Name(), " got answer: ", domain, " -> ", ips)
+	newError(f.Name(), " got answer: ", domain, " -> ", ips).AtInfo().WriteToLog()
 
-	if len(netIP) > 0 {
 	return netIP, nil
-	}
-	return nil, dns.ErrEmptyResponse
 }

app/dns/nameserver_local.go

@@ -2,11 +2,7 @@ package dns
 
 import (
 	"context"
-	"strings"
-	"time"
 
-	"github.com/xtls/xray-core/common/errors"
-	"github.com/xtls/xray-core/common/log"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/features/dns"
 	"github.com/xtls/xray-core/features/dns/localdns"
@@ -17,23 +13,25 @@ type LocalNameServer struct {
 	client *localdns.Client
 }
 
-const errEmptyResponse = "No address associated with hostname"
-
 // QueryIP implements Server.
-func (s *LocalNameServer) QueryIP(ctx context.Context, domain string, _ net.IP, option dns.IPOption, _ bool) (ips []net.IP, err error) {
+func (s *LocalNameServer) QueryIP(_ context.Context, domain string, _ net.IP, option dns.IPOption, _ CacheStrategy) ([]net.IP, error) {
-	start := time.Now()
+	var ips []net.IP
-	ips, err = s.client.LookupIP(domain, option)
+	var err error
 
-	if err != nil && strings.HasSuffix(err.Error(), errEmptyResponse) {
+	switch {
-		err = dns.ErrEmptyResponse
+	case option.IPv4Enable && option.IPv6Enable:
+		ips, err = s.client.LookupIP(domain)
+	case option.IPv4Enable:
+		ips, err = s.client.LookupIPv4(domain)
+	case option.IPv6Enable:
+		ips, err = s.client.LookupIPv6(domain)
 	}
 
 	if len(ips) > 0 {
-		errors.LogInfo(ctx, "Localhost got answer: ", domain, " -> ", ips)
+		newError("Localhost got answer: ", domain, " -> ", ips).AtInfo().WriteToLog()
-		log.Record(&log.DNSLog{Server: s.Name(), Domain: domain, Result: ips, Status: log.DNSQueried, Elapsed: time.Since(start), Error: err})
 	}
 
-	return
+	return ips, err
 }
 
 // Name implements Server.
@@ -43,7 +41,7 @@ func (s *LocalNameServer) Name() string {
 
 // NewLocalNameServer creates localdns server object for directly lookup in system DNS.
 func NewLocalNameServer() *LocalNameServer {
-	errors.LogInfo(context.Background(), "DNS: created localhost client")
+	newError("DNS: created localhost client").AtInfo().WriteToLog()
 	return &LocalNameServer{
 		client: localdns.New(),
 	}

app/dns/nameserver_local_test.go

@@ -13,12 +13,11 @@ import (
 
 func TestLocalNameServer(t *testing.T) {
 	s := NewLocalNameServer()
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
 	ips, err := s.QueryIP(ctx, "google.com", net.IP{}, dns.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
-		FakeEnable: false,
+	}, CacheStrategy_Cache_ALL)
-	}, false)
 	cancel()
 	common.Must(err)
 	if len(ips) == 0 {

app/dns/nameserver_quic.go

@@ -1,18 +1,18 @@
 package dns
 
 import (
-	"bytes"
 	"context"
-	"encoding/binary"
 	"net/url"
 	"sync"
 	"sync/atomic"
 	"time"
 
-	"github.com/quic-go/quic-go"
+	"github.com/lucas-clemente/quic-go"
+	"golang.org/x/net/dns/dnsmessage"
+	"golang.org/x/net/http2"
+
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
-	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/log"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/protocol/dns"
@@ -21,49 +21,43 @@ import (
 	"github.com/xtls/xray-core/common/task"
 	dns_feature "github.com/xtls/xray-core/features/dns"
 	"github.com/xtls/xray-core/transport/internet/tls"
-	"golang.org/x/net/dns/dnsmessage"
-	"golang.org/x/net/http2"
 )
 
 // NextProtoDQ - During connection establishment, DNS/QUIC support is indicated
 // by selecting the ALPN token "dq" in the crypto handshake.
-const NextProtoDQ = "doq"
+const NextProtoDQ = "doq-i00"
-
-const handshakeTimeout = time.Second * 8
 
 // QUICNameServer implemented DNS over QUIC
 type QUICNameServer struct {
 	sync.RWMutex
-	ips           map[string]*record
+	ips         map[string]record
 	pub         *pubsub.Service
 	cleanup     *task.Periodic
 	reqID       uint32
 	name        string
-	destination   *net.Destination
+	destination net.Destination
-	connection    quic.Connection
+	session     quic.Session
-	queryStrategy QueryStrategy
 }
 
 // NewQUICNameServer creates DNS-over-QUIC client object for local resolving
-func NewQUICNameServer(url *url.URL, queryStrategy QueryStrategy) (*QUICNameServer, error) {
+func NewQUICNameServer(url *url.URL) (*QUICNameServer, error) {
-	errors.LogInfo(context.Background(), "DNS: created Local DNS-over-QUIC client for ", url.String())
+	newError("DNS: created Local DNS-over-QUIC client for ", url.String()).AtInfo().WriteToLog()
 
 	var err error
-	port := net.Port(853)
+	port := net.Port(784)
 	if url.Port() != "" {
 		port, err = net.PortFromString(url.Port())
 		if err != nil {
 			return nil, err
 		}
 	}
-	dest := net.UDPDestination(net.ParseAddress(url.Hostname()), port)
+	dest := net.UDPDestination(net.DomainAddress(url.Hostname()), port)
 
 	s := &QUICNameServer{
-		ips:           make(map[string]*record),
+		ips:         make(map[string]record),
 		pub:         pubsub.NewService(),
 		name:        url.String(),
-		destination:   &dest,
+		destination: dest,
-		queryStrategy: queryStrategy,
 	}
 	s.cleanup = &task.Periodic{
 		Interval: time.Minute,
@@ -85,7 +79,7 @@ func (s *QUICNameServer) Cleanup() error {
 	defer s.Unlock()
 
 	if len(s.ips) == 0 {
-		return errors.New("nothing to do. stopping...")
+		return newError("nothing to do. stopping...")
 	}
 
 	for domain, record := range s.ips {
@@ -97,7 +91,7 @@ func (s *QUICNameServer) Cleanup() error {
 		}
 
 		if record.A == nil && record.AAAA == nil {
-			errors.LogDebug(context.Background(), s.name, " cleanup ", domain)
+			newError(s.name, " cleanup ", domain).AtDebug().WriteToLog()
 			delete(s.ips, domain)
 		} else {
 			s.ips[domain] = record
@@ -105,7 +99,7 @@ func (s *QUICNameServer) Cleanup() error {
 	}
 
 	if len(s.ips) == 0 {
-		s.ips = make(map[string]*record)
+		s.ips = make(map[string]record)
 	}
 
 	return nil
@@ -115,10 +109,7 @@ func (s *QUICNameServer) updateIP(req *dnsRequest, ipRec *IPRecord) {
 	elapsed := time.Since(req.start)
 
 	s.Lock()
-	rec, found := s.ips[req.domain]
+	rec := s.ips[req.domain]
-	if !found {
-		rec = &record{}
-	}
 	updated := false
 
 	switch req.reqType {
@@ -140,7 +131,7 @@ func (s *QUICNameServer) updateIP(req *dnsRequest, ipRec *IPRecord) {
 			updated = true
 		}
 	}
-	errors.LogInfo(context.Background(), s.name, " got answer: ", req.domain, " ", req.reqType, " -> ", ipRec.IP, " ", elapsed)
+	newError(s.name, " got answer: ", req.domain, " ", req.reqType, " -> ", ipRec.IP, " ", elapsed).AtInfo().WriteToLog()
 
 	if updated {
 		s.ips[req.domain] = rec
@@ -160,7 +151,7 @@ func (s *QUICNameServer) newReqID() uint16 {
 }
 
 func (s *QUICNameServer) sendQuery(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption) {
-	errors.LogInfo(ctx, s.name, " querying: ", domain)
+	newError(s.name, " querying: ", domain).AtInfo().WriteToLog(session.ExportIDToError(ctx))
 
 	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(clientIP))
 
@@ -175,17 +166,22 @@ func (s *QUICNameServer) sendQuery(ctx context.Context, domain string, clientIP
 		go func(r *dnsRequest) {
 			// generate new context for each req, using same context
 			// may cause reqs all aborted if any one encounter an error
-			dnsCtx := ctx
+			dnsCtx := context.Background()
 
 			// reserve internal dns server requested Inbound
 			if inbound := session.InboundFromContext(ctx); inbound != nil {
 				dnsCtx = session.ContextWithInbound(dnsCtx, inbound)
 			}
-
 			dnsCtx = session.ContextWithContent(dnsCtx, &session.Content{
 				Protocol:       "quic",
 				SkipDNSResolve: true,
 			})
+			dnsCtx = log.ContextWithAccessMessage(dnsCtx, &log.AccessMessage{
+				From:   "DoQ",
+				To:     s.name,
+				Status: log.AccessAccepted,
+				Reason: "",
+			})
 
 			var cancel context.CancelFunc
 			dnsCtx, cancel = context.WithDeadline(dnsCtx, deadline)
@@ -193,24 +189,19 @@ func (s *QUICNameServer) sendQuery(ctx context.Context, domain string, clientIP
 
 			b, err := dns.PackMessage(r.msg)
 			if err != nil {
-				errors.LogErrorInner(ctx, err, "failed to pack dns query")
+				newError("failed to pack dns query").Base(err).AtError().WriteToLog()
 				return
 			}
 
-			dnsReqBuf := buf.New()
-			binary.Write(dnsReqBuf, binary.BigEndian, uint16(b.Len()))
-			dnsReqBuf.Write(b.Bytes())
-			b.Release()
-
 			conn, err := s.openStream(dnsCtx)
 			if err != nil {
-				errors.LogErrorInner(ctx, err, "failed to open quic connection")
+				newError("failed to open quic session").Base(err).AtError().WriteToLog()
 				return
 			}
 
-			_, err = conn.Write(dnsReqBuf.Bytes())
+			_, err = conn.Write(b.Bytes())
 			if err != nil {
-				errors.LogErrorInner(ctx, err, "failed to send query")
+				newError("failed to send query").Base(err).AtError().WriteToLog()
 				return
 			}
 
@@ -218,27 +209,15 @@ func (s *QUICNameServer) sendQuery(ctx context.Context, domain string, clientIP
 
 			respBuf := buf.New()
 			defer respBuf.Release()
-			n, err := respBuf.ReadFullFrom(conn, 2)
+			n, err := respBuf.ReadFrom(conn)
 			if err != nil && n == 0 {
-				errors.LogErrorInner(ctx, err, "failed to read response length")
+				newError("failed to read response").Base(err).AtError().WriteToLog()
-				return
-			}
-			var length int16
-			err = binary.Read(bytes.NewReader(respBuf.Bytes()), binary.BigEndian, &length)
-			if err != nil {
-				errors.LogErrorInner(ctx, err, "failed to parse response length")
-				return
-			}
-			respBuf.Clear()
-			n, err = respBuf.ReadFullFrom(conn, int32(length))
-			if err != nil && n == 0 {
-				errors.LogErrorInner(ctx, err, "failed to read response length")
 				return
 			}
 
 			rec, err := parseResponse(respBuf.Bytes())
 			if err != nil {
-				errors.LogErrorInner(ctx, err, "failed to handle response")
+				newError("failed to handle response").Base(err).AtError().WriteToLog()
 				return
 			}
 			s.updateIP(r, rec)
@@ -255,30 +234,30 @@ func (s *QUICNameServer) findIPsForDomain(domain string, option dns_feature.IPOp
 		return nil, errRecordNotFound
 	}
 
-	var err4 error
-	var err6 error
 	var ips []net.Address
-	var ip6 []net.Address
+	var lastErr error
-
+	if option.IPv6Enable && record.AAAA != nil && record.AAAA.RCode == dnsmessage.RCodeSuccess {
-	if option.IPv4Enable {
+		aaaa, err := record.AAAA.getIPs()
-		ips, err4 = record.A.getIPs()
+		if err != nil {
+			lastErr = err
+		}
+		ips = append(ips, aaaa...)
 	}
 
-	if option.IPv6Enable {
+	if option.IPv4Enable && record.A != nil && record.A.RCode == dnsmessage.RCodeSuccess {
-		ip6, err6 = record.AAAA.getIPs()
+		a, err := record.A.getIPs()
-		ips = append(ips, ip6...)
+		if err != nil {
+			lastErr = err
+		}
+		ips = append(ips, a...)
 	}
 
 	if len(ips) > 0 {
 		return toNetIP(ips)
 	}
 
-	if err4 != nil {
+	if lastErr != nil {
-		return nil, err4
+		return nil, lastErr
-	}
-
-	if err6 != nil {
-		return nil, err6
 	}
 
 	if (option.IPv4Enable && record.A != nil) || (option.IPv6Enable && record.AAAA != nil) {
@@ -289,23 +268,21 @@ func (s *QUICNameServer) findIPsForDomain(domain string, option dns_feature.IPOp
 }
 
 // QueryIP is called from dns.Server->queryIPTimeout
-func (s *QUICNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, disableCache bool) ([]net.IP, error) {
+func (s *QUICNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, cs CacheStrategy) ([]net.IP, error) {
 	fqdn := Fqdn(domain)
-	option = ResolveIpOptionOverride(s.queryStrategy, option)
-	if !option.IPv4Enable && !option.IPv6Enable {
-		return nil, dns_feature.ErrEmptyResponse
-	}
 
-	if disableCache {
+	if cs == CacheStrategy_Cache_DISABLE {
-		errors.LogDebug(ctx, "DNS cache is disabled. Querying IP for ", domain, " at ", s.name)
+		newError("DNS cache is disabled. Querying IP for ", domain, " at ", s.name).AtDebug().WriteToLog()
 	} else {
 		ips, err := s.findIPsForDomain(fqdn, option)
-		if err == nil || err == dns_feature.ErrEmptyResponse {
+		if err != errRecordNotFound {
-			errors.LogDebugInner(ctx, err, s.name, " cache HIT ", domain, " -> ", ips)
+			if cs == CacheStrategy_Cache_NOERROR && err == nil {
-			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSCacheHit, Elapsed: 0, Error: err})
+				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
 			}
 		}
+	}
 
 	// ipv4 and ipv6 belong to different subscription groups
 	var sub4, sub6 *pubsub.Subscriber
@@ -339,7 +316,7 @@ func (s *QUICNameServer) QueryIP(ctx context.Context, domain string, clientIP ne
 	for {
 		ips, err := s.findIPsForDomain(fqdn, option)
 		if err != errRecordNotFound {
-			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSQueried, Elapsed: time.Since(start), Error: err})
+			log.Record(&log.DNSLog{s.name, domain, ips, log.DNSQueried, time.Since(start), err})
 			return ips, err
 		}
 
@@ -351,7 +328,7 @@ func (s *QUICNameServer) QueryIP(ctx context.Context, domain string, clientIP ne
 	}
 }
 
-func isActive(s quic.Connection) bool {
+func isActive(s quic.Session) bool {
 	select {
 	case <-s.Context().Done():
 		return false
@@ -360,17 +337,17 @@ func isActive(s quic.Connection) bool {
 	}
 }
 
-func (s *QUICNameServer) getConnection() (quic.Connection, error) {
+func (s *QUICNameServer) getSession() (quic.Session, error) {
-	var conn quic.Connection
+	var session quic.Session
 	s.RLock()
-	conn = s.connection
+	session = s.session
-	if conn != nil && isActive(conn) {
+	if session != nil && isActive(session) {
 		s.RUnlock()
-		return conn, nil
+		return session, nil
 	}
-	if conn != nil {
+	if session != nil {
-		// we're recreating the connection, let's create a new one
+		// we're recreating the session, let's create a new one
-		_ = conn.CloseWithError(0, "")
+		_ = session.CloseWithError(0, "")
 	}
 	s.RUnlock()
 
@@ -378,48 +355,40 @@ func (s *QUICNameServer) getConnection() (quic.Connection, error) {
 	defer s.Unlock()
 
 	var err error
-	conn, err = s.openConnection()
+	session, err = s.openSession()
 	if err != nil {
 		// This does not look too nice, but QUIC (or maybe quic-go)
 		// doesn't seem stable enough.
 		// Maybe retransmissions aren't fully implemented in quic-go?
 		// Anyways, the simple solution is to make a second try when
-		// it fails to open the QUIC connection.
+		// it fails to open the QUIC session.
-		conn, err = s.openConnection()
+		session, err = s.openSession()
 		if err != nil {
 			return nil, err
 		}
 	}
-	s.connection = conn
+	s.session = session
-	return conn, nil
+	return session, nil
 }
 
-func (s *QUICNameServer) openConnection() (quic.Connection, error) {
+func (s *QUICNameServer) openSession() (quic.Session, error) {
 	tlsConfig := tls.Config{}
-	quicConfig := &quic.Config{
+	quicConfig := &quic.Config{}
-		HandshakeIdleTimeout: handshakeTimeout,
+
-	}
+	session, err := quic.DialAddrContext(context.Background(), s.destination.NetAddr(), tlsConfig.GetTLSConfig(tls.WithNextProto("http/1.1", http2.NextProtoTLS, NextProtoDQ)), quicConfig)
-	tlsConfig.ServerName = s.destination.Address.String()
-	conn, err := quic.DialAddr(context.Background(), s.destination.NetAddr(), tlsConfig.GetTLSConfig(tls.WithNextProto("http/1.1", http2.NextProtoTLS, NextProtoDQ)), quicConfig)
-	log.Record(&log.AccessMessage{
-		From:   "DNS",
-		To:     s.destination,
-		Status: log.AccessAccepted,
-		Detour: "local",
-	})
 	if err != nil {
 		return nil, err
 	}
 
-	return conn, nil
+	return session, nil
 }
 
 func (s *QUICNameServer) openStream(ctx context.Context) (quic.Stream, error) {
-	conn, err := s.getConnection()
+	session, err := s.getSession()
 	if err != nil {
 		return nil, err
 	}
 
 	// open a new stream
-	return conn.OpenStreamSync(ctx)
+	return session.OpenStreamSync(ctx)
 }

app/dns/nameserver_quic_test.go

@@ -7,22 +7,40 @@ import (
 	"time"
 
 	"github.com/google/go-cmp/cmp"
+
 	. "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"
+	dns_feature "github.com/xtls/xray-core/features/dns"
 )
 
 func TestQUICNameServer(t *testing.T) {
 	url, err := url.Parse("quic://dns.adguard.com")
 	common.Must(err)
-	s, err := NewQUICNameServer(url, QueryStrategy_USE_IP)
+	s, err := NewQUICNameServer(url)
 	common.Must(err)
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns.IPOption{
+	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
-	}, false)
+	}, CacheStrategy_Cache_ALL)
+	cancel()
+	common.Must(err)
+	if len(ips) == 0 {
+		t.Error("expect some ips, but got 0")
+	}
+}
+
+func TestQUICNameServerWithCache(t *testing.T) {
+	url, err := url.Parse("quic://dns.adguard.com")
+	common.Must(err)
+	s, err := NewQUICNameServer(url)
+	common.Must(err)
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
+	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
+		IPv4Enable: true,
+		IPv6Enable: true,
+	}, CacheStrategy_Cache_ALL)
 	cancel()
 	common.Must(err)
 	if len(ips) == 0 {
@@ -30,59 +48,13 @@ func TestQUICNameServer(t *testing.T) {
 	}
 
 	ctx2, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips2, err := s.QueryIP(ctx2, "google.com", net.IP(nil), dns.IPOption{
+	ips2, err := s.QueryIP(ctx2, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
-	}, true)
+	}, CacheStrategy_Cache_ALL)
 	cancel()
 	common.Must(err)
 	if r := cmp.Diff(ips2, ips); r != "" {
 		t.Fatal(r)
 	}
 }
-
-func TestQUICNameServerWithIPv4Override(t *testing.T) {
-	url, err := url.Parse("quic://dns.adguard.com")
-	common.Must(err)
-	s, err := NewQUICNameServer(url, QueryStrategy_USE_IP4)
-	common.Must(err)
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
-	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns.IPOption{
-		IPv4Enable: true,
-		IPv6Enable: true,
-	}, false)
-	cancel()
-	common.Must(err)
-	if len(ips) == 0 {
-		t.Error("expect some ips, but got 0")
-	}
-
-	for _, ip := range ips {
-		if len(ip) != net.IPv4len {
-			t.Error("expect only IPv4 response from DNS query")
-		}
-	}
-}
-
-func TestQUICNameServerWithIPv6Override(t *testing.T) {
-	url, err := url.Parse("quic://dns.adguard.com")
-	common.Must(err)
-	s, err := NewQUICNameServer(url, QueryStrategy_USE_IP6)
-	common.Must(err)
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
-	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns.IPOption{
-		IPv4Enable: true,
-		IPv6Enable: true,
-	}, false)
-	cancel()
-	common.Must(err)
-	if len(ips) == 0 {
-		t.Error("expect some ips, but got 0")
-	}
-
-	for _, ip := range ips {
-		if len(ip) != net.IPv6len {
-			t.Error("expect only IPv6 response from DNS query")
-		}
-	}
-}

app/dns/nameserver_tcp.go

@@ -1,375 +0,0 @@
-package dns
-
-import (
-	"bytes"
-	"context"
-	"encoding/binary"
-	"net/url"
-	"sync"
-	"sync/atomic"
-	"time"
-
-	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/buf"
-	"github.com/xtls/xray-core/common/errors"
-	"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"
-	"github.com/xtls/xray-core/common/session"
-	"github.com/xtls/xray-core/common/signal/pubsub"
-	"github.com/xtls/xray-core/common/task"
-	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"
-)
-
-// TCPNameServer implemented DNS over TCP (RFC7766).
-type TCPNameServer struct {
-	sync.RWMutex
-	name          string
-	destination   *net.Destination
-	ips           map[string]*record
-	pub           *pubsub.Service
-	cleanup       *task.Periodic
-	reqID         uint32
-	dial          func(context.Context) (net.Conn, error)
-	queryStrategy QueryStrategy
-}
-
-// NewTCPNameServer creates DNS over TCP server object for remote resolving.
-func NewTCPNameServer(
-	url *url.URL,
-	dispatcher routing.Dispatcher,
-	queryStrategy QueryStrategy,
-) (*TCPNameServer, error) {
-	s, err := baseTCPNameServer(url, "TCP", queryStrategy)
-	if err != nil {
-		return nil, err
-	}
-
-	s.dial = func(ctx context.Context) (net.Conn, error) {
-		link, err := dispatcher.Dispatch(toDnsContext(ctx, s.destination.String()), *s.destination)
-		if err != nil {
-			return nil, err
-		}
-
-		return cnc.NewConnection(
-			cnc.ConnectionInputMulti(link.Writer),
-			cnc.ConnectionOutputMulti(link.Reader),
-		), nil
-	}
-
-	return s, nil
-}
-
-// NewTCPLocalNameServer creates DNS over TCP client object for local resolving
-func NewTCPLocalNameServer(url *url.URL, queryStrategy QueryStrategy) (*TCPNameServer, error) {
-	s, err := baseTCPNameServer(url, "TCPL", queryStrategy)
-	if err != nil {
-		return nil, err
-	}
-
-	s.dial = func(ctx context.Context) (net.Conn, error) {
-		return internet.DialSystem(ctx, *s.destination, nil)
-	}
-
-	return s, nil
-}
-
-func baseTCPNameServer(url *url.URL, prefix string, queryStrategy QueryStrategy) (*TCPNameServer, error) {
-	port := net.Port(53)
-	if url.Port() != "" {
-		var err error
-		if port, err = net.PortFromString(url.Port()); err != nil {
-			return nil, err
-		}
-	}
-	dest := net.TCPDestination(net.ParseAddress(url.Hostname()), port)
-
-	s := &TCPNameServer{
-		destination:   &dest,
-		ips:           make(map[string]*record),
-		pub:           pubsub.NewService(),
-		name:          prefix + "//" + dest.NetAddr(),
-		queryStrategy: queryStrategy,
-	}
-	s.cleanup = &task.Periodic{
-		Interval: time.Minute,
-		Execute:  s.Cleanup,
-	}
-
-	return s, nil
-}
-
-// Name implements Server.
-func (s *TCPNameServer) Name() string {
-	return s.name
-}
-
-// Cleanup clears expired items from cache
-func (s *TCPNameServer) Cleanup() error {
-	now := time.Now()
-	s.Lock()
-	defer s.Unlock()
-
-	if len(s.ips) == 0 {
-		return errors.New("nothing to do. stopping...")
-	}
-
-	for domain, record := range s.ips {
-		if record.A != nil && record.A.Expire.Before(now) {
-			record.A = nil
-		}
-		if record.AAAA != nil && record.AAAA.Expire.Before(now) {
-			record.AAAA = nil
-		}
-
-		if record.A == nil && record.AAAA == nil {
-			errors.LogDebug(context.Background(), s.name, " cleanup ", domain)
-			delete(s.ips, domain)
-		} else {
-			s.ips[domain] = record
-		}
-	}
-
-	if len(s.ips) == 0 {
-		s.ips = make(map[string]*record)
-	}
-
-	return nil
-}
-
-func (s *TCPNameServer) updateIP(req *dnsRequest, ipRec *IPRecord) {
-	elapsed := time.Since(req.start)
-
-	s.Lock()
-	rec, found := s.ips[req.domain]
-	if !found {
-		rec = &record{}
-	}
-	updated := false
-
-	switch req.reqType {
-	case dnsmessage.TypeA:
-		if isNewer(rec.A, ipRec) {
-			rec.A = ipRec
-			updated = true
-		}
-	case dnsmessage.TypeAAAA:
-		addr := make([]net.Address, 0)
-		for _, ip := range ipRec.IP {
-			if len(ip.IP()) == net.IPv6len {
-				addr = append(addr, ip)
-			}
-		}
-		ipRec.IP = addr
-		if isNewer(rec.AAAA, ipRec) {
-			rec.AAAA = ipRec
-			updated = true
-		}
-	}
-	errors.LogInfo(context.Background(), s.name, " got answer: ", req.domain, " ", req.reqType, " -> ", ipRec.IP, " ", elapsed)
-
-	if updated {
-		s.ips[req.domain] = rec
-	}
-	switch req.reqType {
-	case dnsmessage.TypeA:
-		s.pub.Publish(req.domain+"4", nil)
-	case dnsmessage.TypeAAAA:
-		s.pub.Publish(req.domain+"6", nil)
-	}
-	s.Unlock()
-	common.Must(s.cleanup.Start())
-}
-
-func (s *TCPNameServer) newReqID() uint16 {
-	return uint16(atomic.AddUint32(&s.reqID, 1))
-}
-
-func (s *TCPNameServer) sendQuery(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption) {
-	errors.LogDebug(ctx, s.name, " querying DNS for: ", domain)
-
-	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(clientIP))
-
-	var deadline time.Time
-	if d, ok := ctx.Deadline(); ok {
-		deadline = d
-	} else {
-		deadline = time.Now().Add(time.Second * 5)
-	}
-
-	for _, req := range reqs {
-		go func(r *dnsRequest) {
-			dnsCtx := ctx
-
-			if inbound := session.InboundFromContext(ctx); inbound != nil {
-				dnsCtx = session.ContextWithInbound(dnsCtx, inbound)
-			}
-
-			dnsCtx = session.ContextWithContent(dnsCtx, &session.Content{
-				Protocol:       "dns",
-				SkipDNSResolve: true,
-			})
-
-			var cancel context.CancelFunc
-			dnsCtx, cancel = context.WithDeadline(dnsCtx, deadline)
-			defer cancel()
-
-			b, err := dns.PackMessage(r.msg)
-			if err != nil {
-				errors.LogErrorInner(ctx, err, "failed to pack dns query")
-				return
-			}
-
-			conn, err := s.dial(dnsCtx)
-			if err != nil {
-				errors.LogErrorInner(ctx, err, "failed to dial namesever")
-				return
-			}
-			defer conn.Close()
-			dnsReqBuf := buf.New()
-			binary.Write(dnsReqBuf, binary.BigEndian, uint16(b.Len()))
-			dnsReqBuf.Write(b.Bytes())
-			b.Release()
-
-			_, err = conn.Write(dnsReqBuf.Bytes())
-			if err != nil {
-				errors.LogErrorInner(ctx, err, "failed to send query")
-				return
-			}
-			dnsReqBuf.Release()
-
-			respBuf := buf.New()
-			defer respBuf.Release()
-			n, err := respBuf.ReadFullFrom(conn, 2)
-			if err != nil && n == 0 {
-				errors.LogErrorInner(ctx, err, "failed to read response length")
-				return
-			}
-			var length int16
-			err = binary.Read(bytes.NewReader(respBuf.Bytes()), binary.BigEndian, &length)
-			if err != nil {
-				errors.LogErrorInner(ctx, err, "failed to parse response length")
-				return
-			}
-			respBuf.Clear()
-			n, err = respBuf.ReadFullFrom(conn, int32(length))
-			if err != nil && n == 0 {
-				errors.LogErrorInner(ctx, err, "failed to read response length")
-				return
-			}
-
-			rec, err := parseResponse(respBuf.Bytes())
-			if err != nil {
-				errors.LogErrorInner(ctx, err, "failed to parse DNS over TCP response")
-				return
-			}
-
-			s.updateIP(r, rec)
-		}(req)
-	}
-}
-
-func (s *TCPNameServer) findIPsForDomain(domain string, option dns_feature.IPOption) ([]net.IP, error) {
-	s.RLock()
-	record, found := s.ips[domain]
-	s.RUnlock()
-
-	if !found {
-		return nil, errRecordNotFound
-	}
-
-	var err4 error
-	var err6 error
-	var ips []net.Address
-	var ip6 []net.Address
-
-	if option.IPv4Enable {
-		ips, err4 = record.A.getIPs()
-	}
-
-	if option.IPv6Enable {
-		ip6, err6 = record.AAAA.getIPs()
-		ips = append(ips, ip6...)
-	}
-
-	if len(ips) > 0 {
-		return toNetIP(ips)
-	}
-
-	if err4 != nil {
-		return nil, err4
-	}
-
-	if err6 != nil {
-		return nil, err6
-	}
-
-	return nil, dns_feature.ErrEmptyResponse
-}
-
-// QueryIP implements Server.
-func (s *TCPNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, disableCache bool) ([]net.IP, error) {
-	fqdn := Fqdn(domain)
-	option = ResolveIpOptionOverride(s.queryStrategy, option)
-	if !option.IPv4Enable && !option.IPv6Enable {
-		return nil, dns_feature.ErrEmptyResponse
-	}
-
-	if disableCache {
-		errors.LogDebug(ctx, "DNS cache is disabled. Querying IP for ", domain, " at ", s.name)
-	} else {
-		ips, err := s.findIPsForDomain(fqdn, option)
-		if err == nil || err == dns_feature.ErrEmptyResponse {
-			errors.LogDebugInner(ctx, err, s.name, " cache HIT ", domain, " -> ", ips)
-			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSCacheHit, Elapsed: 0, Error: err})
-			return ips, err
-		}
-	}
-
-	// ipv4 and ipv6 belong to different subscription groups
-	var sub4, sub6 *pubsub.Subscriber
-	if option.IPv4Enable {
-		sub4 = s.pub.Subscribe(fqdn + "4")
-		defer sub4.Close()
-	}
-	if option.IPv6Enable {
-		sub6 = s.pub.Subscribe(fqdn + "6")
-		defer sub6.Close()
-	}
-	done := make(chan interface{})
-	go func() {
-		if sub4 != nil {
-			select {
-			case <-sub4.Wait():
-			case <-ctx.Done():
-			}
-		}
-		if sub6 != nil {
-			select {
-			case <-sub6.Wait():
-			case <-ctx.Done():
-			}
-		}
-		close(done)
-	}()
-	s.sendQuery(ctx, fqdn, clientIP, option)
-	start := time.Now()
-
-	for {
-		ips, err := s.findIPsForDomain(fqdn, option)
-		if err != errRecordNotFound {
-			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSQueried, Elapsed: time.Since(start), Error: err})
-			return ips, err
-		}
-
-		select {
-		case <-ctx.Done():
-			return nil, ctx.Err()
-		case <-done:
-		}
-	}
-}

app/dns/nameserver_tcp_test.go

@@ -1,107 +0,0 @@
-package dns_test
-
-import (
-	"context"
-	"net/url"
-	"testing"
-	"time"
-
-	"github.com/google/go-cmp/cmp"
-	. "github.com/xtls/xray-core/app/dns"
-	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/net"
-	dns_feature "github.com/xtls/xray-core/features/dns"
-)
-
-func TestTCPLocalNameServer(t *testing.T) {
-	url, err := url.Parse("tcp+local://8.8.8.8")
-	common.Must(err)
-	s, err := NewTCPLocalNameServer(url, QueryStrategy_USE_IP)
-	common.Must(err)
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
-		IPv4Enable: true,
-		IPv6Enable: true,
-	}, false)
-	cancel()
-	common.Must(err)
-	if len(ips) == 0 {
-		t.Error("expect some ips, but got 0")
-	}
-}
-
-func TestTCPLocalNameServerWithCache(t *testing.T) {
-	url, err := url.Parse("tcp+local://8.8.8.8")
-	common.Must(err)
-	s, err := NewTCPLocalNameServer(url, QueryStrategy_USE_IP)
-	common.Must(err)
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
-		IPv4Enable: true,
-		IPv6Enable: true,
-	}, false)
-	cancel()
-	common.Must(err)
-	if len(ips) == 0 {
-		t.Error("expect some ips, but got 0")
-	}
-
-	ctx2, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips2, err := s.QueryIP(ctx2, "google.com", net.IP(nil), dns_feature.IPOption{
-		IPv4Enable: true,
-		IPv6Enable: true,
-	}, true)
-	cancel()
-	common.Must(err)
-	if r := cmp.Diff(ips2, ips); r != "" {
-		t.Fatal(r)
-	}
-}
-
-func TestTCPLocalNameServerWithIPv4Override(t *testing.T) {
-	url, err := url.Parse("tcp+local://8.8.8.8")
-	common.Must(err)
-	s, err := NewTCPLocalNameServer(url, QueryStrategy_USE_IP4)
-	common.Must(err)
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
-		IPv4Enable: true,
-		IPv6Enable: true,
-	}, false)
-	cancel()
-	common.Must(err)
-
-	if len(ips) == 0 {
-		t.Error("expect some ips, but got 0")
-	}
-
-	for _, ip := range ips {
-		if len(ip) != net.IPv4len {
-			t.Error("expect only IPv4 response from DNS query")
-		}
-	}
-}
-
-func TestTCPLocalNameServerWithIPv6Override(t *testing.T) {
-	url, err := url.Parse("tcp+local://8.8.8.8")
-	common.Must(err)
-	s, err := NewTCPLocalNameServer(url, QueryStrategy_USE_IP6)
-	common.Must(err)
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
-		IPv4Enable: true,
-		IPv6Enable: true,
-	}, false)
-	cancel()
-	common.Must(err)
-
-	if len(ips) == 0 {
-		t.Error("expect some ips, but got 0")
-	}
-
-	for _, ip := range ips {
-		if len(ip) != net.IPv6len {
-			t.Error("expect only IPv6 response from DNS query")
-		}
-	}
-}

app/dns/nameserver_udp.go

@@ -8,11 +8,11 @@ import (
 	"time"
 
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/errors"
 	"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"
+	"github.com/xtls/xray-core/common/session"
 	"github.com/xtls/xray-core/common/signal/pubsub"
 	"github.com/xtls/xray-core/common/task"
 	dns_feature "github.com/xtls/xray-core/features/dns"
@@ -21,41 +21,38 @@ import (
 	"golang.org/x/net/dns/dnsmessage"
 )
 
-// ClassicNameServer implemented traditional UDP DNS.
 type ClassicNameServer struct {
 	sync.RWMutex
 	name      string
-	address       *net.Destination
+	address   net.Destination
-	ips           map[string]*record
+	ips       map[string]record
-	requests      map[uint16]*dnsRequest
+	requests  map[uint16]dnsRequest
 	pub       *pubsub.Service
 	udpServer *udp.Dispatcher
 	cleanup   *task.Periodic
 	reqID     uint32
-	queryStrategy QueryStrategy
 }
 
 // NewClassicNameServer creates udp server object for remote resolving.
-func NewClassicNameServer(address net.Destination, dispatcher routing.Dispatcher, queryStrategy QueryStrategy) *ClassicNameServer {
+func NewClassicNameServer(address net.Destination, dispatcher routing.Dispatcher) *ClassicNameServer {
 	// default to 53 if unspecific
 	if address.Port == 0 {
 		address.Port = net.Port(53)
 	}
 
 	s := &ClassicNameServer{
-		address:       &address,
+		address:  address,
-		ips:           make(map[string]*record),
+		ips:      make(map[string]record),
-		requests:      make(map[uint16]*dnsRequest),
+		requests: make(map[uint16]dnsRequest),
 		pub:      pubsub.NewService(),
 		name:     strings.ToUpper(address.String()),
-		queryStrategy: queryStrategy,
 	}
 	s.cleanup = &task.Periodic{
 		Interval: time.Minute,
 		Execute:  s.Cleanup,
 	}
 	s.udpServer = udp.NewDispatcher(dispatcher, s.HandleResponse)
-	errors.LogInfo(context.Background(), "DNS: created UDP client initialized for ", address.NetAddr())
+	newError("DNS: created UDP client initialized for ", address.NetAddr()).AtInfo().WriteToLog()
 	return s
 }
 
@@ -71,7 +68,7 @@ func (s *ClassicNameServer) Cleanup() error {
 	defer s.Unlock()
 
 	if len(s.ips) == 0 && len(s.requests) == 0 {
-		return errors.New(s.name, " nothing to do. stopping...")
+		return newError(s.name, " nothing to do. stopping...")
 	}
 
 	for domain, record := range s.ips {
@@ -83,7 +80,6 @@ func (s *ClassicNameServer) Cleanup() error {
 		}
 
 		if record.A == nil && record.AAAA == nil {
-			errors.LogDebug(context.Background(), s.name, " cleanup ", domain)
 			delete(s.ips, domain)
 		} else {
 			s.ips[domain] = record
@@ -91,7 +87,7 @@ func (s *ClassicNameServer) Cleanup() error {
 	}
 
 	if len(s.ips) == 0 {
-		s.ips = make(map[string]*record)
+		s.ips = make(map[string]record)
 	}
 
 	for id, req := range s.requests {
@@ -101,7 +97,7 @@ func (s *ClassicNameServer) Cleanup() error {
 	}
 
 	if len(s.requests) == 0 {
-		s.requests = make(map[uint16]*dnsRequest)
+		s.requests = make(map[uint16]dnsRequest)
 	}
 
 	return nil
@@ -111,7 +107,7 @@ func (s *ClassicNameServer) Cleanup() error {
 func (s *ClassicNameServer) HandleResponse(ctx context.Context, packet *udp_proto.Packet) {
 	ipRec, err := parseResponse(packet.Payload.Bytes())
 	if err != nil {
-		errors.LogError(ctx, s.name, " fail to parse responded DNS udp")
+		newError(s.name, " fail to parse responded DNS udp").AtError().WriteToLog()
 		return
 	}
 
@@ -124,7 +120,7 @@ func (s *ClassicNameServer) HandleResponse(ctx context.Context, packet *udp_prot
 	}
 	s.Unlock()
 	if !ok {
-		errors.LogError(ctx, s.name, " cannot find the pending request")
+		newError(s.name, " cannot find the pending request").AtError().WriteToLog()
 		return
 	}
 
@@ -137,19 +133,17 @@ func (s *ClassicNameServer) HandleResponse(ctx context.Context, packet *udp_prot
 	}
 
 	elapsed := time.Since(req.start)
-	errors.LogInfo(ctx, s.name, " got answer: ", req.domain, " ", req.reqType, " -> ", ipRec.IP, " ", elapsed)
+	newError(s.name, " got answer: ", req.domain, " ", req.reqType, " -> ", ipRec.IP, " ", elapsed).AtInfo().WriteToLog()
 	if len(req.domain) > 0 && (rec.A != nil || rec.AAAA != nil) {
-		s.updateIP(req.domain, &rec)
+		s.updateIP(req.domain, rec)
 	}
 }
 
-func (s *ClassicNameServer) updateIP(domain string, newRec *record) {
+func (s *ClassicNameServer) updateIP(domain string, newRec record) {
 	s.Lock()
 
-	rec, found := s.ips[domain]
+	newError(s.name, " updating IP records for domain:", domain).AtDebug().WriteToLog()
-	if !found {
+	rec := s.ips[domain]
-		rec = &record{}
-	}
 
 	updated := false
 	if isNewer(rec.A, newRec.A) {
@@ -162,7 +156,6 @@ func (s *ClassicNameServer) updateIP(domain string, newRec *record) {
 	}
 
 	if updated {
-		errors.LogDebug(context.Background(), s.name, " updating IP records for domain:", domain)
 		s.ips[domain] = rec
 	}
 	if newRec.A != nil {
@@ -185,18 +178,31 @@ func (s *ClassicNameServer) addPendingRequest(req *dnsRequest) {
 
 	id := req.msg.ID
 	req.expire = time.Now().Add(time.Second * 8)
-	s.requests[id] = req
+	s.requests[id] = *req
 }
 
 func (s *ClassicNameServer) sendQuery(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption) {
-	errors.LogDebug(ctx, s.name, " querying DNS for: ", domain)
+	newError(s.name, " querying DNS for: ", domain).AtDebug().WriteToLog(session.ExportIDToError(ctx))
 
 	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(clientIP))
 
 	for _, req := range reqs {
 		s.addPendingRequest(req)
 		b, _ := dns.PackMessage(req.msg)
-		s.udpServer.Dispatch(toDnsContext(ctx, s.address.String()), *s.address, b)
+		udpCtx := context.Background()
+		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)
 	}
 }
 
@@ -209,53 +215,51 @@ func (s *ClassicNameServer) findIPsForDomain(domain string, option dns_feature.I
 		return nil, errRecordNotFound
 	}
 
-	var err4 error
-	var err6 error
 	var ips []net.Address
-	var ip6 []net.Address
+	var lastErr error
-
 	if option.IPv4Enable {
-		ips, err4 = record.A.getIPs()
+		a, err := record.A.getIPs()
+		if err != nil {
+			lastErr = err
+		}
+		ips = append(ips, a...)
 	}
 
 	if option.IPv6Enable {
-		ip6, err6 = record.AAAA.getIPs()
+		aaaa, err := record.AAAA.getIPs()
-		ips = append(ips, ip6...)
+		if err != nil {
+			lastErr = err
+		}
+		ips = append(ips, aaaa...)
 	}
 
 	if len(ips) > 0 {
 		return toNetIP(ips)
 	}
 
-	if err4 != nil {
+	if lastErr != nil {
-		return nil, err4
+		return nil, lastErr
-	}
-
-	if err6 != nil {
-		return nil, err6
 	}
 
 	return nil, dns_feature.ErrEmptyResponse
 }
 
 // QueryIP implements Server.
-func (s *ClassicNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, disableCache bool) ([]net.IP, error) {
+func (s *ClassicNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, cs CacheStrategy) ([]net.IP, error) {
 	fqdn := Fqdn(domain)
-	option = ResolveIpOptionOverride(s.queryStrategy, option)
-	if !option.IPv4Enable && !option.IPv6Enable {
-		return nil, dns_feature.ErrEmptyResponse
-	}
 
-	if disableCache {
+	if cs == CacheStrategy_Cache_DISABLE {
-		errors.LogDebug(ctx, "DNS cache is disabled. Querying IP for ", domain, " at ", s.name)
+		newError("DNS cache is disabled. Querying IP for ", domain, " at ", s.name).AtDebug().WriteToLog()
 	} else {
 		ips, err := s.findIPsForDomain(fqdn, option)
-		if err == nil || err == dns_feature.ErrEmptyResponse {
+		if err != errRecordNotFound {
-			errors.LogDebugInner(ctx, err, s.name, " cache HIT ", domain, " -> ", ips)
+			if cs == CacheStrategy_Cache_NOERROR && err == nil {
-			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSCacheHit, Elapsed: 0, Error: err})
+				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
 			}
 		}
+	}
 
 	// ipv4 and ipv6 belong to different subscription groups
 	var sub4, sub6 *pubsub.Subscriber
@@ -289,7 +293,7 @@ func (s *ClassicNameServer) QueryIP(ctx context.Context, domain string, clientIP
 	for {
 		ips, err := s.findIPsForDomain(fqdn, option)
 		if err != errRecordNotFound {
-			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSQueried, Elapsed: time.Since(start), Error: err})
+			log.Record(&log.DNSLog{s.name, domain, ips, log.DNSQueried, time.Since(start), err})
 			return ips, err
 		}
 

app/dns/options.go

@@ -0,0 +1,16 @@
+package dns
+
+import "github.com/xtls/xray-core/features/dns"
+
+func isIPQuery(o *dns.IPOption) bool {
+	return o.IPv4Enable || o.IPv6Enable
+}
+
+func canQueryOnClient(o *dns.IPOption, c *Client) bool {
+	isIPClient := !(c.Name() == FakeDNSName)
+	return isIPClient && isIPQuery(o)
+}
+
+func isQuery(o *dns.IPOption) bool {
+	return !(o.IPv4Enable || o.IPv6Enable || o.FakeEnable)
+}

app/log/command/command.go

@@ -1,13 +1,15 @@
 package command
 
+//go:generate go run github.com/xtls/xray-core/common/errors/errorgen
+
 import (
 	"context"
 
+	grpc "google.golang.org/grpc"
+
 	"github.com/xtls/xray-core/app/log"
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/core"
-	grpc "google.golang.org/grpc"
 )
 
 type LoggerServer struct {
@@ -18,13 +20,13 @@ type LoggerServer struct {
 func (s *LoggerServer) RestartLogger(ctx context.Context, request *RestartLoggerRequest) (*RestartLoggerResponse, error) {
 	logger := s.V.GetFeature((*log.Instance)(nil))
 	if logger == nil {
-		return nil, errors.New("unable to get logger instance")
+		return nil, newError("unable to get logger instance")
 	}
 	if err := logger.Close(); err != nil {
-		return nil, errors.New("failed to close logger").Base(err)
+		return nil, newError("failed to close logger").Base(err)
 	}
 	if err := logger.Start(); err != nil {
-		return nil, errors.New("failed to start logger").Base(err)
+		return nil, newError("failed to start logger").Base(err)
 	}
 	return &RestartLoggerResponse{}, nil
 }

app/log/command/config.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.35.1
+// 	protoc-gen-go v1.25.0
-// 	protoc        v5.28.2
+// 	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
@@ -28,9 +33,11 @@ type Config struct {
 
 func (x *Config) Reset() {
 	*x = Config{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_log_command_config_proto_msgTypes[0]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *Config) String() string {
@@ -41,7 +48,7 @@ func (*Config) ProtoMessage() {}
 
 func (x *Config) ProtoReflect() protoreflect.Message {
 	mi := &file_app_log_command_config_proto_msgTypes[0]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -64,9 +71,11 @@ type RestartLoggerRequest struct {
 
 func (x *RestartLoggerRequest) Reset() {
 	*x = RestartLoggerRequest{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_log_command_config_proto_msgTypes[1]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *RestartLoggerRequest) String() string {
@@ -77,7 +86,7 @@ func (*RestartLoggerRequest) ProtoMessage() {}
 
 func (x *RestartLoggerRequest) ProtoReflect() protoreflect.Message {
 	mi := &file_app_log_command_config_proto_msgTypes[1]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -100,9 +109,11 @@ type RestartLoggerResponse struct {
 
 func (x *RestartLoggerResponse) Reset() {
 	*x = RestartLoggerResponse{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_log_command_config_proto_msgTypes[2]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *RestartLoggerResponse) String() string {
@@ -113,7 +124,7 @@ func (*RestartLoggerResponse) ProtoMessage() {}
 
 func (x *RestartLoggerResponse) ProtoReflect() protoreflect.Message {
 	mi := &file_app_log_command_config_proto_msgTypes[2]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -168,7 +179,7 @@ func file_app_log_command_config_proto_rawDescGZIP() []byte {
 }
 
 var file_app_log_command_config_proto_msgTypes = make([]protoimpl.MessageInfo, 3)
-var file_app_log_command_config_proto_goTypes = []any{
+var file_app_log_command_config_proto_goTypes = []interface{}{
 	(*Config)(nil),                // 0: xray.app.log.command.Config
 	(*RestartLoggerRequest)(nil),  // 1: xray.app.log.command.RestartLoggerRequest
 	(*RestartLoggerResponse)(nil), // 2: xray.app.log.command.RestartLoggerResponse
@@ -188,6 +199,44 @@ func file_app_log_command_config_proto_init() {
 	if File_app_log_command_config_proto != nil {
 		return
 	}
+	if !protoimpl.UnsafeEnabled {
+		file_app_log_command_config_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Config); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_log_command_config_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*RestartLoggerRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_log_command_config_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*RestartLoggerResponse); 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{

app/log/command/config_grpc.pb.go

@@ -1,8 +1,4 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
-// versions:
-// - protoc-gen-go-grpc v1.5.1
-// - protoc             v5.28.2
-// source: app/log/command/config.proto
 
 package command
 
@@ -15,12 +11,8 @@ import (
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-// Requires gRPC-Go v1.64.0 or later.
+// Requires gRPC-Go v1.32.0 or later.
-const _ = grpc.SupportPackageIsVersion9
+const _ = grpc.SupportPackageIsVersion7
-
-const (
-	LoggerService_RestartLogger_FullMethodName = "/xray.app.log.command.LoggerService/RestartLogger"
-)
 
 // LoggerServiceClient is the client API for LoggerService service.
 //
@@ -38,9 +30,8 @@ func NewLoggerServiceClient(cc grpc.ClientConnInterface) LoggerServiceClient {
 }
 
 func (c *loggerServiceClient) RestartLogger(ctx context.Context, in *RestartLoggerRequest, opts ...grpc.CallOption) (*RestartLoggerResponse, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
 	out := new(RestartLoggerResponse)
-	err := c.cc.Invoke(ctx, LoggerService_RestartLogger_FullMethodName, in, out, cOpts...)
+	err := c.cc.Invoke(ctx, "/xray.app.log.command.LoggerService/RestartLogger", in, out, opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -49,24 +40,20 @@ func (c *loggerServiceClient) RestartLogger(ctx context.Context, in *RestartLogg
 
 // LoggerServiceServer is the server API for LoggerService service.
 // All implementations must embed UnimplementedLoggerServiceServer
-// for forward compatibility.
+// for forward compatibility
 type LoggerServiceServer interface {
 	RestartLogger(context.Context, *RestartLoggerRequest) (*RestartLoggerResponse, error)
 	mustEmbedUnimplementedLoggerServiceServer()
 }
 
-// UnimplementedLoggerServiceServer must be embedded to have
+// UnimplementedLoggerServiceServer must be embedded to have forward compatible implementations.
-// forward compatible implementations.
+type UnimplementedLoggerServiceServer struct {
-//
+}
-// NOTE: this should be embedded by value instead of pointer to avoid a nil
-// pointer dereference when methods are called.
-type UnimplementedLoggerServiceServer struct{}
 
 func (UnimplementedLoggerServiceServer) RestartLogger(context.Context, *RestartLoggerRequest) (*RestartLoggerResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method RestartLogger not implemented")
 }
 func (UnimplementedLoggerServiceServer) mustEmbedUnimplementedLoggerServiceServer() {}
-func (UnimplementedLoggerServiceServer) testEmbeddedByValue()                       {}
 
 // UnsafeLoggerServiceServer may be embedded to opt out of forward compatibility for this service.
 // Use of this interface is not recommended, as added methods to LoggerServiceServer will
@@ -76,13 +63,6 @@ type UnsafeLoggerServiceServer interface {
 }
 
 func RegisterLoggerServiceServer(s grpc.ServiceRegistrar, srv LoggerServiceServer) {
-	// If the following call pancis, it indicates UnimplementedLoggerServiceServer was
-	// embedded by pointer and is nil.  This will cause panics if an
-	// unimplemented method is ever invoked, so we test this at initialization
-	// time to prevent it from happening at runtime later due to I/O.
-	if t, ok := srv.(interface{ testEmbeddedByValue() }); ok {
-		t.testEmbeddedByValue()
-	}
 	s.RegisterService(&LoggerService_ServiceDesc, srv)
 }
 
@@ -96,7 +76,7 @@ func _LoggerService_RestartLogger_Handler(srv interface{}, ctx context.Context,
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: LoggerService_RestartLogger_FullMethodName,
+		FullMethod: "/xray.app.log.command.LoggerService/RestartLogger",
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(LoggerServiceServer).RestartLogger(ctx, req.(*RestartLoggerRequest))

app/log/command/errors.generated.go

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

app/log/config.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.35.1
+// 	protoc-gen-go v1.25.0
-// 	protoc        v5.28.2
+// 	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 (
@@ -84,14 +89,15 @@ type Config struct {
 	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"`
-	MaskAddress   string       `protobuf:"bytes,7,opt,name=mask_address,json=maskAddress,proto3" json:"mask_address,omitempty"`
 }
 
 func (x *Config) Reset() {
 	*x = Config{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_log_config_proto_msgTypes[0]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *Config) String() string {
@@ -102,7 +108,7 @@ func (*Config) ProtoMessage() {}
 
 func (x *Config) ProtoReflect() protoreflect.Message {
 	mi := &file_app_log_config_proto_msgTypes[0]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -128,7 +134,7 @@ 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 {
@@ -159,20 +165,13 @@ func (x *Config) GetEnableDnsLog() bool {
 	return false
 }
 
-func (x *Config) GetMaskAddress() string {
-	if x != nil {
-		return x.MaskAddress
-	}
-	return ""
-}
-
 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, 0xde, 0x02, 0x0a, 0x06, 0x43,
+	0x2f, 0x6c, 0x6f, 0x67, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0xbb, 0x02, 0x0a, 0x06, 0x43,
 	0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x3b, 0x0a, 0x0e, 0x65, 0x72, 0x72, 0x6f, 0x72, 0x5f, 0x6c,
 	0x6f, 0x67, 0x5f, 0x74, 0x79, 0x70, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0e, 0x32, 0x15, 0x2e,
 	0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x6c, 0x6f, 0x67, 0x2e, 0x4c, 0x6f, 0x67,
@@ -192,18 +191,15 @@ var file_app_log_config_proto_rawDesc = []byte{
 	0x01, 0x28, 0x09, 0x52, 0x0d, 0x61, 0x63, 0x63, 0x65, 0x73, 0x73, 0x4c, 0x6f, 0x67, 0x50, 0x61,
 	0x74, 0x68, 0x12, 0x24, 0x0a, 0x0e, 0x65, 0x6e, 0x61, 0x62, 0x6c, 0x65, 0x5f, 0x64, 0x6e, 0x73,
 	0x5f, 0x6c, 0x6f, 0x67, 0x18, 0x06, 0x20, 0x01, 0x28, 0x08, 0x52, 0x0c, 0x65, 0x6e, 0x61, 0x62,
-	0x6c, 0x65, 0x44, 0x6e, 0x73, 0x4c, 0x6f, 0x67, 0x12, 0x21, 0x0a, 0x0c, 0x6d, 0x61, 0x73, 0x6b,
+	0x6c, 0x65, 0x44, 0x6e, 0x73, 0x4c, 0x6f, 0x67, 0x2a, 0x35, 0x0a, 0x07, 0x4c, 0x6f, 0x67, 0x54,
-	0x5f, 0x61, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x18, 0x07, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0b,
+	0x79, 0x70, 0x65, 0x12, 0x08, 0x0a, 0x04, 0x4e, 0x6f, 0x6e, 0x65, 0x10, 0x00, 0x12, 0x0b, 0x0a,
-	0x6d, 0x61, 0x73, 0x6b, 0x41, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x2a, 0x35, 0x0a, 0x07, 0x4c,
+	0x07, 0x43, 0x6f, 0x6e, 0x73, 0x6f, 0x6c, 0x65, 0x10, 0x01, 0x12, 0x08, 0x0a, 0x04, 0x46, 0x69,
-	0x6f, 0x67, 0x54, 0x79, 0x70, 0x65, 0x12, 0x08, 0x0a, 0x04, 0x4e, 0x6f, 0x6e, 0x65, 0x10, 0x00,
+	0x6c, 0x65, 0x10, 0x02, 0x12, 0x09, 0x0a, 0x05, 0x45, 0x76, 0x65, 0x6e, 0x74, 0x10, 0x03, 0x42,
-	0x12, 0x0b, 0x0a, 0x07, 0x43, 0x6f, 0x6e, 0x73, 0x6f, 0x6c, 0x65, 0x10, 0x01, 0x12, 0x08, 0x0a,
+	0x46, 0x0a, 0x10, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e,
-	0x04, 0x46, 0x69, 0x6c, 0x65, 0x10, 0x02, 0x12, 0x09, 0x0a, 0x05, 0x45, 0x76, 0x65, 0x6e, 0x74,
+	0x6c, 0x6f, 0x67, 0x50, 0x01, 0x5a, 0x21, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f,
-	0x10, 0x03, 0x42, 0x46, 0x0a, 0x10, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61,
+	0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65,
-	0x70, 0x70, 0x2e, 0x6c, 0x6f, 0x67, 0x50, 0x01, 0x5a, 0x21, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62,
+	0x2f, 0x61, 0x70, 0x70, 0x2f, 0x6c, 0x6f, 0x67, 0xaa, 0x02, 0x0c, 0x58, 0x72, 0x61, 0x79, 0x2e,
-	0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63,
+	0x41, 0x70, 0x70, 0x2e, 0x4c, 0x6f, 0x67, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
-	0x6f, 0x72, 0x65, 0x2f, 0x61, 0x70, 0x70, 0x2f, 0x6c, 0x6f, 0x67, 0xaa, 0x02, 0x0c, 0x58, 0x72,
-	0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x4c, 0x6f, 0x67, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74,
-	0x6f, 0x33,
 }
 
 var (
@@ -220,7 +216,7 @@ func file_app_log_config_proto_rawDescGZIP() []byte {
 
 var file_app_log_config_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
 var file_app_log_config_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
-var file_app_log_config_proto_goTypes = []any{
+var file_app_log_config_proto_goTypes = []interface{}{
 	(LogType)(0),      // 0: xray.app.log.LogType
 	(*Config)(nil),    // 1: xray.app.log.Config
 	(log.Severity)(0), // 2: xray.common.log.Severity
@@ -241,6 +237,20 @@ func file_app_log_config_proto_init() {
 	if File_app_log_config_proto != nil {
 		return
 	}
+	if !protoimpl.UnsafeEnabled {
+		file_app_log_config_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Config); 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{

app/log/config.proto

@@ -23,5 +23,4 @@ message Config {
   LogType access_log_type = 4;
   string access_log_path = 5;
   bool enable_dns_log = 6;
-  string mask_address= 7;
 }

app/log/errors.generated.go

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

app/log/log.go

@@ -1,14 +1,12 @@
 package log
 
+//go:generate go run github.com/xtls/xray-core/common/errors/errorgen
+
 import (
 	"context"
-	"fmt"
-	"regexp"
-	"strings"
 	"sync"
 
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/log"
 )
 
@@ -31,13 +29,13 @@ func New(ctx context.Context, config *Config) (*Instance, error) {
 	}
 	log.RegisterHandler(g)
 
-	// Start logger instantly on initialization
+	// start logger instantly on inited
-	// Other modules would log during initialization
+	// other modules would log during init
 	if err := g.startInternal(); err != nil {
 		return nil, err
 	}
 
-	errors.LogDebug(ctx, "Logger started")
+	newError("Logger started").AtDebug().WriteToLog()
 	return g, nil
 }
 
@@ -79,10 +77,10 @@ func (g *Instance) startInternal() error {
 	g.active = true
 
 	if err := g.initAccessLogger(); err != nil {
-		return errors.New("failed to initialize access logger").Base(err).AtWarning()
+		return newError("failed to initialize access logger").Base(err).AtWarning()
 	}
 	if err := g.initErrorLogger(); err != nil {
-		return errors.New("failed to initialize error logger").Base(err).AtWarning()
+		return newError("failed to initialize error logger").Base(err).AtWarning()
 	}
 
 	return nil
@@ -102,25 +100,18 @@ func (g *Instance) Handle(msg log.Message) {
 		return
 	}
 
-	var Msg log.Message
-	if g.config.MaskAddress != "" {
-		Msg = &MaskedMsgWrapper{Message: msg, config: g.config}
-	} else {
-		Msg = msg
-	}
-
 	switch msg := msg.(type) {
 	case *log.AccessMessage:
 		if g.accessLogger != nil {
-			g.accessLogger.Handle(Msg)
+			g.accessLogger.Handle(msg)
 		}
 	case *log.DNSLog:
 		if g.dns && g.accessLogger != nil {
-			g.accessLogger.Handle(Msg)
+			g.accessLogger.Handle(msg)
 		}
 	case *log.GeneralMessage:
 		if g.errorLogger != nil && msg.Severity <= g.config.ErrorLogLevel {
-			g.errorLogger.Handle(Msg)
+			g.errorLogger.Handle(msg)
 		}
 	default:
 		// Swallow
@@ -129,7 +120,7 @@ func (g *Instance) Handle(msg log.Message) {
 
 // Close implements common.Closable.Close().
 func (g *Instance) Close() error {
-	errors.LogDebug(context.Background(), "Logger closing")
+	newError("Logger closing").AtDebug().WriteToLog()
 
 	g.Lock()
 	defer g.Unlock()
@@ -149,56 +140,6 @@ func (g *Instance) Close() error {
 	return nil
 }
 
-// MaskedMsgWrapper is to wrap the string() method to mask IP addresses in the log.
-type MaskedMsgWrapper struct {
-	log.Message
-	config *Config
-}
-
-func (m *MaskedMsgWrapper) String() string {
-	str := m.Message.String()
-
-	ipv4Regex := regexp.MustCompile(`(\d{1,3}\.){3}\d{1,3}`)
-	ipv6Regex := regexp.MustCompile(`((?:[\da-fA-F]{0,4}:[\da-fA-F]{0,4}){2,7})(?:[\/\\%](\d{1,3}))?`)
-
-	// Process ipv4
-	maskedMsg := ipv4Regex.ReplaceAllStringFunc(str, func(ip string) string {
-		parts := strings.Split(ip, ".")
-		switch m.config.MaskAddress {
-		case "half":
-			return fmt.Sprintf("%s.%s.*.*", parts[0], parts[1])
-		case "quarter":
-			return fmt.Sprintf("%s.*.*.*", parts[0])
-		case "full":
-			return "[Masked IPv4]"
-		default:
-			return ip
-		}
-	})
-
-	// process ipv6
-	maskedMsg = ipv6Regex.ReplaceAllStringFunc(maskedMsg, func(ip string) string {
-		parts := strings.Split(ip, ":")
-		switch m.config.MaskAddress {
-		case "half":
-			if len(parts) >= 2 {
-				return fmt.Sprintf("%s:%s::/32", parts[0], parts[1])
-			}
-		case "quarter":
-			if len(parts) >= 1 {
-				return fmt.Sprintf("%s::/16", parts[0])
-			}
-		case "full":
-			return "Masked IPv6" // Do not use [Masked IPv6] like ipv4, or you will get "[[Masked IPv6]]" (v6 address already has [])
-		default:
-			return ip
-		}
-		return ip
-	})
-
-	return maskedMsg
-}
-
 func init() {
 	common.Must(common.RegisterConfig((*Config)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
 		return New(ctx, config.(*Config))

app/log/log_creator.go

@@ -1,10 +1,7 @@
 package log
 
 import (
-	"sync"
-
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/log"
 )
 
@@ -14,29 +11,23 @@ type HandlerCreatorOptions struct {
 
 type HandlerCreator func(LogType, HandlerCreatorOptions) (log.Handler, error)
 
-var handlerCreatorMap = make(map[LogType]HandlerCreator)
+var (
-
+	handlerCreatorMap = make(map[LogType]HandlerCreator)
-var handlerCreatorMapLock = &sync.RWMutex{}
+)
 
 func RegisterHandlerCreator(logType LogType, f HandlerCreator) error {
 	if f == nil {
-		return errors.New("nil HandlerCreator")
+		return newError("nil HandlerCreator")
 	}
 
-	handlerCreatorMapLock.Lock()
-	defer handlerCreatorMapLock.Unlock()
-
 	handlerCreatorMap[logType] = f
 	return nil
 }
 
 func createHandler(logType LogType, options HandlerCreatorOptions) (log.Handler, error) {
-	handlerCreatorMapLock.RLock()
-	defer handlerCreatorMapLock.RUnlock()
-
 	creator, found := handlerCreatorMap[logType]
 	if !found {
-		return nil, errors.New("unable to create log handler for ", logType)
+		return nil, newError("unable to create log handler for ", logType)
 	}
 	return creator(logType, options)
 }

app/metrics/config.pb.go

@@ -1,133 +0,0 @@
-// Code generated by protoc-gen-go. DO NOT EDIT.
-// versions:
-// 	protoc-gen-go v1.35.1
-// 	protoc        v5.28.2
-// source: app/metrics/config.proto
-
-package metrics
-
-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)
-)
-
-// Config is the settings for metrics.
-type Config struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	// Tag of the outbound handler that handles metrics http connections.
-	Tag string `protobuf:"bytes,1,opt,name=tag,proto3" json:"tag,omitempty"`
-}
-
-func (x *Config) Reset() {
-	*x = Config{}
-	mi := &file_app_metrics_config_proto_msgTypes[0]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *Config) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*Config) ProtoMessage() {}
-
-func (x *Config) ProtoReflect() protoreflect.Message {
-	mi := &file_app_metrics_config_proto_msgTypes[0]
-	if x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use Config.ProtoReflect.Descriptor instead.
-func (*Config) Descriptor() ([]byte, []int) {
-	return file_app_metrics_config_proto_rawDescGZIP(), []int{0}
-}
-
-func (x *Config) GetTag() string {
-	if x != nil {
-		return x.Tag
-	}
-	return ""
-}
-
-var File_app_metrics_config_proto protoreflect.FileDescriptor
-
-var file_app_metrics_config_proto_rawDesc = []byte{
-	0x0a, 0x18, 0x61, 0x70, 0x70, 0x2f, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x2f, 0x63, 0x6f,
-	0x6e, 0x66, 0x69, 0x67, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x10, 0x78, 0x72, 0x61, 0x79,
-	0x2e, 0x61, 0x70, 0x70, 0x2e, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x22, 0x1a, 0x0a, 0x06,
-	0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x10, 0x0a, 0x03, 0x74, 0x61, 0x67, 0x18, 0x01, 0x20,
-	0x01, 0x28, 0x09, 0x52, 0x03, 0x74, 0x61, 0x67, 0x42, 0x52, 0x0a, 0x14, 0x63, 0x6f, 0x6d, 0x2e,
-	0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73,
-	0x50, 0x01, 0x5a, 0x25, 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, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0xaa, 0x02, 0x10, 0x58, 0x72, 0x61, 0x79,
-	0x2e, 0x41, 0x70, 0x70, 0x2e, 0x4d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x62, 0x06, 0x70, 0x72,
-	0x6f, 0x74, 0x6f, 0x33,
-}
-
-var (
-	file_app_metrics_config_proto_rawDescOnce sync.Once
-	file_app_metrics_config_proto_rawDescData = file_app_metrics_config_proto_rawDesc
-)
-
-func file_app_metrics_config_proto_rawDescGZIP() []byte {
-	file_app_metrics_config_proto_rawDescOnce.Do(func() {
-		file_app_metrics_config_proto_rawDescData = protoimpl.X.CompressGZIP(file_app_metrics_config_proto_rawDescData)
-	})
-	return file_app_metrics_config_proto_rawDescData
-}
-
-var file_app_metrics_config_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
-var file_app_metrics_config_proto_goTypes = []any{
-	(*Config)(nil), // 0: xray.app.metrics.Config
-}
-var file_app_metrics_config_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_metrics_config_proto_init() }
-func file_app_metrics_config_proto_init() {
-	if File_app_metrics_config_proto != nil {
-		return
-	}
-	type x struct{}
-	out := protoimpl.TypeBuilder{
-		File: protoimpl.DescBuilder{
-			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
-			RawDescriptor: file_app_metrics_config_proto_rawDesc,
-			NumEnums:      0,
-			NumMessages:   1,
-			NumExtensions: 0,
-			NumServices:   0,
-		},
-		GoTypes:           file_app_metrics_config_proto_goTypes,
-		DependencyIndexes: file_app_metrics_config_proto_depIdxs,
-		MessageInfos:      file_app_metrics_config_proto_msgTypes,
-	}.Build()
-	File_app_metrics_config_proto = out.File
-	file_app_metrics_config_proto_rawDesc = nil
-	file_app_metrics_config_proto_goTypes = nil
-	file_app_metrics_config_proto_depIdxs = nil
-}

app/metrics/config.proto

@@ -1,13 +0,0 @@
-syntax = "proto3";
-
-package xray.app.metrics;
-option csharp_namespace = "Xray.App.Metrics";
-option go_package = "github.com/xtls/xray-core/app/metrics";
-option java_package = "com.xray.app.metrics";
-option java_multiple_files = true;
-
-// Config is the settings for metrics.
-message Config {
-  // Tag of the outbound handler that handles metrics http connections.
-  string tag = 1;
-}

app/metrics/metrics.go

@@ -1,119 +0,0 @@
-package metrics
-
-import (
-	"context"
-	"expvar"
-	"net/http"
-	_ "net/http/pprof"
-	"strings"
-
-	"github.com/xtls/xray-core/app/observatory"
-	"github.com/xtls/xray-core/app/stats"
-	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/errors"
-	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/common/signal/done"
-	"github.com/xtls/xray-core/core"
-	"github.com/xtls/xray-core/features/extension"
-	"github.com/xtls/xray-core/features/outbound"
-	feature_stats "github.com/xtls/xray-core/features/stats"
-)
-
-type MetricsHandler struct {
-	ohm          outbound.Manager
-	statsManager feature_stats.Manager
-	observatory  extension.Observatory
-	tag          string
-}
-
-// NewMetricsHandler creates a new MetricsHandler based on the given config.
-func NewMetricsHandler(ctx context.Context, config *Config) (*MetricsHandler, error) {
-	c := &MetricsHandler{
-		tag: config.Tag,
-	}
-	common.Must(core.RequireFeatures(ctx, func(om outbound.Manager, sm feature_stats.Manager) {
-		c.statsManager = sm
-		c.ohm = om
-	}))
-	expvar.Publish("stats", expvar.Func(func() interface{} {
-		manager, ok := c.statsManager.(*stats.Manager)
-		if !ok {
-			return nil
-		}
-		resp := map[string]map[string]map[string]int64{
-			"inbound":  {},
-			"outbound": {},
-			"user":     {},
-		}
-		manager.VisitCounters(func(name string, counter feature_stats.Counter) bool {
-			nameSplit := strings.Split(name, ">>>")
-			typeName, tagOrUser, direction := nameSplit[0], nameSplit[1], nameSplit[3]
-			if item, found := resp[typeName][tagOrUser]; found {
-				item[direction] = counter.Value()
-			} else {
-				resp[typeName][tagOrUser] = map[string]int64{
-					direction: counter.Value(),
-				}
-			}
-			return true
-		})
-		return resp
-	}))
-	expvar.Publish("observatory", expvar.Func(func() interface{} {
-		if c.observatory == nil {
-			common.Must(core.RequireFeatures(ctx, func(observatory extension.Observatory) error {
-				c.observatory = observatory
-				return nil
-			}))
-			if c.observatory == nil {
-				return nil
-			}
-		}
-		resp := map[string]*observatory.OutboundStatus{}
-		if o, err := c.observatory.GetObservation(context.Background()); err != nil {
-			return err
-		} else {
-			for _, x := range o.(*observatory.ObservationResult).GetStatus() {
-				resp[x.OutboundTag] = x
-			}
-		}
-		return resp
-	}))
-	return c, nil
-}
-
-func (p *MetricsHandler) Type() interface{} {
-	return (*MetricsHandler)(nil)
-}
-
-func (p *MetricsHandler) Start() error {
-	listener := &OutboundListener{
-		buffer: make(chan net.Conn, 4),
-		done:   done.New(),
-	}
-
-	go func() {
-		if err := http.Serve(listener, http.DefaultServeMux); err != nil {
-			errors.LogErrorInner(context.Background(), err, "failed to start metrics server")
-		}
-	}()
-
-	if err := p.ohm.RemoveHandler(context.Background(), p.tag); err != nil {
-		errors.LogInfo(context.Background(), "failed to remove existing handler")
-	}
-
-	return p.ohm.AddHandler(context.Background(), &Outbound{
-		tag:      p.tag,
-		listener: listener,
-	})
-}
-
-func (p *MetricsHandler) Close() error {
-	return nil
-}
-
-func init() {
-	common.Must(common.RegisterConfig((*Config)(nil), func(ctx context.Context, cfg interface{}) (interface{}, error) {
-		return NewMetricsHandler(ctx, cfg.(*Config))
-	}))
-}

app/metrics/outbound.go

@@ -1,110 +0,0 @@
-package metrics
-
-import (
-	"context"
-	"sync"
-
-	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/errors"
-	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/common/net/cnc"
-	"github.com/xtls/xray-core/common/signal/done"
-	"github.com/xtls/xray-core/transport"
-)
-
-// OutboundListener is a net.Listener for listening metrics http connections.
-type OutboundListener struct {
-	buffer chan net.Conn
-	done   *done.Instance
-}
-
-func (l *OutboundListener) add(conn net.Conn) {
-	select {
-	case l.buffer <- conn:
-	case <-l.done.Wait():
-		conn.Close()
-	default:
-		conn.Close()
-	}
-}
-
-// Accept implements net.Listener.
-func (l *OutboundListener) Accept() (net.Conn, error) {
-	select {
-	case <-l.done.Wait():
-		return nil, errors.New("listen closed")
-	case c := <-l.buffer:
-		return c, nil
-	}
-}
-
-// Close implement net.Listener.
-func (l *OutboundListener) Close() error {
-	common.Must(l.done.Close())
-L:
-	for {
-		select {
-		case c := <-l.buffer:
-			c.Close()
-		default:
-			break L
-		}
-	}
-	return nil
-}
-
-// Addr implements net.Listener.
-func (l *OutboundListener) Addr() net.Addr {
-	return &net.TCPAddr{
-		IP:   net.IP{0, 0, 0, 0},
-		Port: 0,
-	}
-}
-
-// Outbound is an outbound.Handler that handles metrics http connections.
-type Outbound struct {
-	tag      string
-	listener *OutboundListener
-	access   sync.RWMutex
-	closed   bool
-}
-
-// Dispatch implements outbound.Handler.
-func (co *Outbound) Dispatch(ctx context.Context, link *transport.Link) {
-	co.access.RLock()
-
-	if co.closed {
-		common.Interrupt(link.Reader)
-		common.Interrupt(link.Writer)
-		co.access.RUnlock()
-		return
-	}
-
-	closeSignal := done.New()
-	c := cnc.NewConnection(cnc.ConnectionInputMulti(link.Writer), cnc.ConnectionOutputMulti(link.Reader), cnc.ConnectionOnClose(closeSignal))
-	co.listener.add(c)
-	co.access.RUnlock()
-	<-closeSignal.Wait()
-}
-
-// Tag implements outbound.Handler.
-func (co *Outbound) Tag() string {
-	return co.tag
-}
-
-// Start implements common.Runnable.
-func (co *Outbound) Start() error {
-	co.access.Lock()
-	co.closed = false
-	co.access.Unlock()
-	return nil
-}
-
-// Close implements common.Closable.
-func (co *Outbound) Close() error {
-	co.access.Lock()
-	defer co.access.Unlock()
-
-	co.closed = true
-	return co.listener.Close()
-}

app/observatory/burst/burst.go

@@ -1,12 +0,0 @@
-package burst
-
-import (
-	"math"
-	"time"
-)
-
-const (
-	rttFailed = time.Duration(math.MaxInt64 - iota)
-	rttUntested
-	rttUnqualified
-)

app/observatory/burst/burstobserver.go

@@ -1,110 +0,0 @@
-package burst
-
-import (
-	"context"
-
-	"sync"
-
-	"github.com/xtls/xray-core/app/observatory"
-	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/errors"
-	"github.com/xtls/xray-core/common/signal/done"
-	"github.com/xtls/xray-core/core"
-	"github.com/xtls/xray-core/features/extension"
-	"github.com/xtls/xray-core/features/outbound"
-	"google.golang.org/protobuf/proto"
-)
-
-type Observer struct {
-	config *Config
-	ctx    context.Context
-
-	statusLock sync.Mutex
-	hp         *HealthPing
-
-	finished *done.Instance
-
-	ohm outbound.Manager
-}
-
-func (o *Observer) GetObservation(ctx context.Context) (proto.Message, error) {
-	return &observatory.ObservationResult{Status: o.createResult()}, nil
-}
-
-func (o *Observer) createResult() []*observatory.OutboundStatus {
-	var result []*observatory.OutboundStatus
-	o.hp.access.Lock()
-	defer o.hp.access.Unlock()
-	for name, value := range o.hp.Results {
-		status := observatory.OutboundStatus{
-			Alive:           value.getStatistics().All != value.getStatistics().Fail,
-			Delay:           value.getStatistics().Average.Milliseconds(),
-			LastErrorReason: "",
-			OutboundTag:     name,
-			LastSeenTime:    0,
-			LastTryTime:     0,
-			HealthPing: &observatory.HealthPingMeasurementResult{
-				All:       int64(value.getStatistics().All),
-				Fail:      int64(value.getStatistics().Fail),
-				Deviation: int64(value.getStatistics().Deviation),
-				Average:   int64(value.getStatistics().Average),
-				Max:       int64(value.getStatistics().Max),
-				Min:       int64(value.getStatistics().Min),
-			},
-		}
-		result = append(result, &status)
-	}
-	return result
-}
-
-func (o *Observer) Type() interface{} {
-	return extension.ObservatoryType()
-}
-
-func (o *Observer) Start() error {
-	if o.config != nil && len(o.config.SubjectSelector) != 0 {
-		o.finished = done.New()
-		o.hp.StartScheduler(func() ([]string, error) {
-			hs, ok := o.ohm.(outbound.HandlerSelector)
-			if !ok {
-
-				return nil, errors.New("outbound.Manager is not a HandlerSelector")
-			}
-
-			outbounds := hs.Select(o.config.SubjectSelector)
-			return outbounds, nil
-		})
-	}
-	return nil
-}
-
-func (o *Observer) Close() error {
-	if o.finished != nil {
-		o.hp.StopScheduler()
-		return o.finished.Close()
-	}
-	return nil
-}
-
-func New(ctx context.Context, config *Config) (*Observer, error) {
-	var outboundManager outbound.Manager
-	err := core.RequireFeatures(ctx, func(om outbound.Manager) {
-		outboundManager = om
-	})
-	if err != nil {
-		return nil, errors.New("Cannot get depended features").Base(err)
-	}
-	hp := NewHealthPing(ctx, config.PingConfig)
-	return &Observer{
-		config: config,
-		ctx:    ctx,
-		ohm:    outboundManager,
-		hp:     hp,
-	}, nil
-}
-
-func init() {
-	common.Must(common.RegisterConfig((*Config)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
-		return New(ctx, config.(*Config))
-	}))
-}

app/observatory/burst/config.pb.go

@@ -1,246 +0,0 @@
-// Code generated by protoc-gen-go. DO NOT EDIT.
-// versions:
-// 	protoc-gen-go v1.35.1
-// 	protoc        v5.28.2
-// source: app/observatory/burst/config.proto
-
-package burst
-
-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 Config struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	// @Document The selectors for outbound under observation
-	SubjectSelector []string          `protobuf:"bytes,2,rep,name=subject_selector,json=subjectSelector,proto3" json:"subject_selector,omitempty"`
-	PingConfig      *HealthPingConfig `protobuf:"bytes,3,opt,name=ping_config,json=pingConfig,proto3" json:"ping_config,omitempty"`
-}
-
-func (x *Config) Reset() {
-	*x = Config{}
-	mi := &file_app_observatory_burst_config_proto_msgTypes[0]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *Config) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*Config) ProtoMessage() {}
-
-func (x *Config) ProtoReflect() protoreflect.Message {
-	mi := &file_app_observatory_burst_config_proto_msgTypes[0]
-	if x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use Config.ProtoReflect.Descriptor instead.
-func (*Config) Descriptor() ([]byte, []int) {
-	return file_app_observatory_burst_config_proto_rawDescGZIP(), []int{0}
-}
-
-func (x *Config) GetSubjectSelector() []string {
-	if x != nil {
-		return x.SubjectSelector
-	}
-	return nil
-}
-
-func (x *Config) GetPingConfig() *HealthPingConfig {
-	if x != nil {
-		return x.PingConfig
-	}
-	return nil
-}
-
-type HealthPingConfig struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	// destination url, need 204 for success return
-	// default https://connectivitycheck.gstatic.com/generate_204
-	Destination string `protobuf:"bytes,1,opt,name=destination,proto3" json:"destination,omitempty"`
-	// connectivity check url
-	Connectivity string `protobuf:"bytes,2,opt,name=connectivity,proto3" json:"connectivity,omitempty"`
-	// health check interval, int64 values of time.Duration
-	Interval int64 `protobuf:"varint,3,opt,name=interval,proto3" json:"interval,omitempty"`
-	// sampling count is the amount of recent ping results which are kept for calculation
-	SamplingCount int32 `protobuf:"varint,4,opt,name=samplingCount,proto3" json:"samplingCount,omitempty"`
-	// ping timeout, int64 values of time.Duration
-	Timeout int64 `protobuf:"varint,5,opt,name=timeout,proto3" json:"timeout,omitempty"`
-}
-
-func (x *HealthPingConfig) Reset() {
-	*x = HealthPingConfig{}
-	mi := &file_app_observatory_burst_config_proto_msgTypes[1]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *HealthPingConfig) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*HealthPingConfig) ProtoMessage() {}
-
-func (x *HealthPingConfig) ProtoReflect() protoreflect.Message {
-	mi := &file_app_observatory_burst_config_proto_msgTypes[1]
-	if x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use HealthPingConfig.ProtoReflect.Descriptor instead.
-func (*HealthPingConfig) Descriptor() ([]byte, []int) {
-	return file_app_observatory_burst_config_proto_rawDescGZIP(), []int{1}
-}
-
-func (x *HealthPingConfig) GetDestination() string {
-	if x != nil {
-		return x.Destination
-	}
-	return ""
-}
-
-func (x *HealthPingConfig) GetConnectivity() string {
-	if x != nil {
-		return x.Connectivity
-	}
-	return ""
-}
-
-func (x *HealthPingConfig) GetInterval() int64 {
-	if x != nil {
-		return x.Interval
-	}
-	return 0
-}
-
-func (x *HealthPingConfig) GetSamplingCount() int32 {
-	if x != nil {
-		return x.SamplingCount
-	}
-	return 0
-}
-
-func (x *HealthPingConfig) GetTimeout() int64 {
-	if x != nil {
-		return x.Timeout
-	}
-	return 0
-}
-
-var File_app_observatory_burst_config_proto protoreflect.FileDescriptor
-
-var file_app_observatory_burst_config_proto_rawDesc = []byte{
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-}
-
-var (
-	file_app_observatory_burst_config_proto_rawDescOnce sync.Once
-	file_app_observatory_burst_config_proto_rawDescData = file_app_observatory_burst_config_proto_rawDesc
-)
-
-func file_app_observatory_burst_config_proto_rawDescGZIP() []byte {
-	file_app_observatory_burst_config_proto_rawDescOnce.Do(func() {
-		file_app_observatory_burst_config_proto_rawDescData = protoimpl.X.CompressGZIP(file_app_observatory_burst_config_proto_rawDescData)
-	})
-	return file_app_observatory_burst_config_proto_rawDescData
-}
-
-var file_app_observatory_burst_config_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
-var file_app_observatory_burst_config_proto_goTypes = []any{
-	(*Config)(nil),           // 0: xray.core.app.observatory.burst.Config
-	(*HealthPingConfig)(nil), // 1: xray.core.app.observatory.burst.HealthPingConfig
-}
-var file_app_observatory_burst_config_proto_depIdxs = []int32{
-	1, // 0: xray.core.app.observatory.burst.Config.ping_config:type_name -> xray.core.app.observatory.burst.HealthPingConfig
-	1, // [1:1] is the sub-list for method output_type
-	1, // [1:1] is the sub-list for method input_type
-	1, // [1:1] is the sub-list for extension type_name
-	1, // [1:1] is the sub-list for extension extendee
-	0, // [0:1] is the sub-list for field type_name
-}
-
-func init() { file_app_observatory_burst_config_proto_init() }
-func file_app_observatory_burst_config_proto_init() {
-	if File_app_observatory_burst_config_proto != nil {
-		return
-	}
-	type x struct{}
-	out := protoimpl.TypeBuilder{
-		File: protoimpl.DescBuilder{
-			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
-			RawDescriptor: file_app_observatory_burst_config_proto_rawDesc,
-			NumEnums:      0,
-			NumMessages:   2,
-			NumExtensions: 0,
-			NumServices:   0,
-		},
-		GoTypes:           file_app_observatory_burst_config_proto_goTypes,
-		DependencyIndexes: file_app_observatory_burst_config_proto_depIdxs,
-		MessageInfos:      file_app_observatory_burst_config_proto_msgTypes,
-	}.Build()
-	File_app_observatory_burst_config_proto = out.File
-	file_app_observatory_burst_config_proto_rawDesc = nil
-	file_app_observatory_burst_config_proto_goTypes = nil
-	file_app_observatory_burst_config_proto_depIdxs = nil
-}

app/observatory/burst/config.proto

@@ -1,29 +0,0 @@
-syntax = "proto3";
-
-package xray.core.app.observatory.burst;
-option csharp_namespace = "Xray.App.Observatory.Burst";
-option go_package = "github.com/xtls/xray-core/app/observatory/burst";
-option java_package = "com.xray.app.observatory.burst";
-option java_multiple_files = true;
-
-message Config {
-  /* @Document The selectors for outbound under observation
-  */
-  repeated string subject_selector = 2;
-
-  HealthPingConfig ping_config = 3;
-}
-
-message HealthPingConfig {
-  // destination url, need 204 for success return
-  // default https://connectivitycheck.gstatic.com/generate_204
-  string destination = 1;
-  // connectivity check url
-  string connectivity = 2;
-  // health check interval, int64 values of time.Duration
-  int64 interval = 3;
-  // sampling count is the amount of recent ping results which are kept for calculation
-  int32 samplingCount = 4;
-  // ping timeout, int64 values of time.Duration
-  int64 timeout = 5;
-}

app/observatory/burst/healthping.go

@@ -1,254 +0,0 @@
-package burst
-
-import (
-	"context"
-	"fmt"
-	"strings"
-	"sync"
-	"time"
-
-	"github.com/xtls/xray-core/common/dice"
-	"github.com/xtls/xray-core/common/errors"
-)
-
-// HealthPingSettings holds settings for health Checker
-type HealthPingSettings struct {
-	Destination   string        `json:"destination"`
-	Connectivity  string        `json:"connectivity"`
-	Interval      time.Duration `json:"interval"`
-	SamplingCount int           `json:"sampling"`
-	Timeout       time.Duration `json:"timeout"`
-}
-
-// HealthPing is the health checker for balancers
-type HealthPing struct {
-	ctx         context.Context
-	access      sync.Mutex
-	ticker      *time.Ticker
-	tickerClose chan struct{}
-
-	Settings *HealthPingSettings
-	Results  map[string]*HealthPingRTTS
-}
-
-// NewHealthPing creates a new HealthPing with settings
-func NewHealthPing(ctx context.Context, config *HealthPingConfig) *HealthPing {
-	settings := &HealthPingSettings{}
-	if config != nil {
-		settings = &HealthPingSettings{
-			Connectivity:  strings.TrimSpace(config.Connectivity),
-			Destination:   strings.TrimSpace(config.Destination),
-			Interval:      time.Duration(config.Interval),
-			SamplingCount: int(config.SamplingCount),
-			Timeout:       time.Duration(config.Timeout),
-		}
-	}
-	if settings.Destination == "" {
-		// Destination URL, need 204 for success return default to chromium
-		// https://github.com/chromium/chromium/blob/main/components/safety_check/url_constants.cc#L10
-		// https://chromium.googlesource.com/chromium/src/+/refs/heads/main/components/safety_check/url_constants.cc#10
-		settings.Destination = "https://connectivitycheck.gstatic.com/generate_204"
-	}
-	if settings.Interval == 0 {
-		settings.Interval = time.Duration(1) * time.Minute
-	} else if settings.Interval < 10 {
-		errors.LogWarning(ctx, "health check interval is too small, 10s is applied")
-		settings.Interval = time.Duration(10) * time.Second
-	}
-	if settings.SamplingCount <= 0 {
-		settings.SamplingCount = 10
-	}
-	if settings.Timeout <= 0 {
-		// results are saved after all health pings finish,
-		// a larger timeout could possibly makes checks run longer
-		settings.Timeout = time.Duration(5) * time.Second
-	}
-	return &HealthPing{
-		ctx:      ctx,
-		Settings: settings,
-		Results:  nil,
-	}
-}
-
-// StartScheduler implements the HealthChecker
-func (h *HealthPing) StartScheduler(selector func() ([]string, error)) {
-	if h.ticker != nil {
-		return
-	}
-	interval := h.Settings.Interval * time.Duration(h.Settings.SamplingCount)
-	ticker := time.NewTicker(interval)
-	tickerClose := make(chan struct{})
-	h.ticker = ticker
-	h.tickerClose = tickerClose
-	go func() {
-		tags, err := selector()
-		if err != nil {
-			errors.LogWarning(h.ctx, "error select outbounds for initial health check: ", err)
-			return
-		}
-		h.Check(tags)
-	}()
-
-	go func() {
-		for {
-			go func() {
-				tags, err := selector()
-				if err != nil {
-					errors.LogWarning(h.ctx, "error select outbounds for scheduled health check: ", err)
-					return
-				}
-				h.doCheck(tags, interval, h.Settings.SamplingCount)
-				h.Cleanup(tags)
-			}()
-			select {
-			case <-ticker.C:
-				continue
-			case <-tickerClose:
-				return
-			}
-		}
-	}()
-}
-
-// StopScheduler implements the HealthChecker
-func (h *HealthPing) StopScheduler() {
-	if h.ticker == nil {
-		return
-	}
-	h.ticker.Stop()
-	h.ticker = nil
-	close(h.tickerClose)
-	h.tickerClose = nil
-}
-
-// Check implements the HealthChecker
-func (h *HealthPing) Check(tags []string) error {
-	if len(tags) == 0 {
-		return nil
-	}
-	errors.LogInfo(h.ctx, "perform one-time health check for tags ", tags)
-	h.doCheck(tags, 0, 1)
-	return nil
-}
-
-type rtt struct {
-	handler string
-	value   time.Duration
-}
-
-// doCheck performs the 'rounds' amount checks in given 'duration'. You should make
-// sure all tags are valid for current balancer
-func (h *HealthPing) doCheck(tags []string, duration time.Duration, rounds int) {
-	count := len(tags) * rounds
-	if count == 0 {
-		return
-	}
-	ch := make(chan *rtt, count)
-
-	for _, tag := range tags {
-		handler := tag
-		client := newPingClient(
-			h.ctx,
-			h.Settings.Destination,
-			h.Settings.Timeout,
-			handler,
-		)
-		for i := 0; i < rounds; i++ {
-			delay := time.Duration(0)
-			if duration > 0 {
-				delay = time.Duration(dice.RollInt63n(int64(duration)))
-			}
-			time.AfterFunc(delay, func() {
-				errors.LogDebug(h.ctx, "checking ", handler)
-				delay, err := client.MeasureDelay()
-				if err == nil {
-					ch <- &rtt{
-						handler: handler,
-						value:   delay,
-					}
-					return
-				}
-				if !h.checkConnectivity() {
-					errors.LogWarning(h.ctx, "network is down")
-					ch <- &rtt{
-						handler: handler,
-						value:   0,
-					}
-					return
-				}
-				errors.LogWarning(h.ctx, fmt.Sprintf(
-					"error ping %s with %s: %s",
-					h.Settings.Destination,
-					handler,
-					err,
-				))
-				ch <- &rtt{
-					handler: handler,
-					value:   rttFailed,
-				}
-			})
-		}
-	}
-	for i := 0; i < count; i++ {
-		rtt := <-ch
-		if rtt.value > 0 {
-			// should not put results when network is down
-			h.PutResult(rtt.handler, rtt.value)
-		}
-	}
-}
-
-// PutResult put a ping rtt to results
-func (h *HealthPing) PutResult(tag string, rtt time.Duration) {
-	h.access.Lock()
-	defer h.access.Unlock()
-	if h.Results == nil {
-		h.Results = make(map[string]*HealthPingRTTS)
-	}
-	r, ok := h.Results[tag]
-	if !ok {
-		// validity is 2 times to sampling period, since the check are
-		// distributed in the time line randomly, in extreme cases,
-		// Previous checks are distributed on the left, and later ones
-		// on the right
-		validity := h.Settings.Interval * time.Duration(h.Settings.SamplingCount) * 2
-		r = NewHealthPingResult(h.Settings.SamplingCount, validity)
-		h.Results[tag] = r
-	}
-	r.Put(rtt)
-}
-
-// Cleanup removes results of removed handlers,
-// tags should be all valid tags of the Balancer now
-func (h *HealthPing) Cleanup(tags []string) {
-	h.access.Lock()
-	defer h.access.Unlock()
-	for tag := range h.Results {
-		found := false
-		for _, v := range tags {
-			if tag == v {
-				found = true
-				break
-			}
-		}
-		if !found {
-			delete(h.Results, tag)
-		}
-	}
-}
-
-// checkConnectivity checks the network connectivity, it returns
-// true if network is good or "connectivity check url" not set
-func (h *HealthPing) checkConnectivity() bool {
-	if h.Settings.Connectivity == "" {
-		return true
-	}
-	tester := newDirectPingClient(
-		h.Settings.Connectivity,
-		h.Settings.Timeout,
-	)
-	if _, err := tester.MeasureDelay(); err != nil {
-		return false
-	}
-	return true
-}

app/observatory/burst/healthping_result.go

@@ -1,143 +0,0 @@
-package burst
-
-import (
-	"math"
-	"time"
-)
-
-// HealthPingStats is the statistics of HealthPingRTTS
-type HealthPingStats struct {
-	All       int
-	Fail      int
-	Deviation time.Duration
-	Average   time.Duration
-	Max       time.Duration
-	Min       time.Duration
-}
-
-// HealthPingRTTS holds ping rtts for health Checker
-type HealthPingRTTS struct {
-	idx      int
-	cap      int
-	validity time.Duration
-	rtts     []*pingRTT
-
-	lastUpdateAt time.Time
-	stats        *HealthPingStats
-}
-
-type pingRTT struct {
-	time  time.Time
-	value time.Duration
-}
-
-// NewHealthPingResult returns a *HealthPingResult with specified capacity
-func NewHealthPingResult(cap int, validity time.Duration) *HealthPingRTTS {
-	return &HealthPingRTTS{cap: cap, validity: validity}
-}
-
-// Get gets statistics of the HealthPingRTTS
-func (h *HealthPingRTTS) Get() *HealthPingStats {
-	return h.getStatistics()
-}
-
-// GetWithCache get statistics and write cache for next call
-// Make sure use Mutex.Lock() before calling it, RWMutex.RLock()
-// is not an option since it writes cache
-func (h *HealthPingRTTS) GetWithCache() *HealthPingStats {
-	lastPutAt := h.rtts[h.idx].time
-	now := time.Now()
-	if h.stats == nil || h.lastUpdateAt.Before(lastPutAt) || h.findOutdated(now) >= 0 {
-		h.stats = h.getStatistics()
-		h.lastUpdateAt = now
-	}
-	return h.stats
-}
-
-// Put puts a new rtt to the HealthPingResult
-func (h *HealthPingRTTS) Put(d time.Duration) {
-	if h.rtts == nil {
-		h.rtts = make([]*pingRTT, h.cap)
-		for i := 0; i < h.cap; i++ {
-			h.rtts[i] = &pingRTT{}
-		}
-		h.idx = -1
-	}
-	h.idx = h.calcIndex(1)
-	now := time.Now()
-	h.rtts[h.idx].time = now
-	h.rtts[h.idx].value = d
-}
-
-func (h *HealthPingRTTS) calcIndex(step int) int {
-	idx := h.idx
-	idx += step
-	if idx >= h.cap {
-		idx %= h.cap
-	}
-	return idx
-}
-
-func (h *HealthPingRTTS) getStatistics() *HealthPingStats {
-	stats := &HealthPingStats{}
-	stats.Fail = 0
-	stats.Max = 0
-	stats.Min = rttFailed
-	sum := time.Duration(0)
-	cnt := 0
-	validRTTs := make([]time.Duration, 0)
-	for _, rtt := range h.rtts {
-		switch {
-		case rtt.value == 0 || time.Since(rtt.time) > h.validity:
-			continue
-		case rtt.value == rttFailed:
-			stats.Fail++
-			continue
-		}
-		cnt++
-		sum += rtt.value
-		validRTTs = append(validRTTs, rtt.value)
-		if stats.Max < rtt.value {
-			stats.Max = rtt.value
-		}
-		if stats.Min > rtt.value {
-			stats.Min = rtt.value
-		}
-	}
-	stats.All = cnt + stats.Fail
-	if cnt == 0 {
-		stats.Min = 0
-		return stats
-	}
-	stats.Average = time.Duration(int(sum) / cnt)
-	var std float64
-	if cnt < 2 {
-		// no enough data for standard deviation, we assume it's half of the average rtt
-		// if we don't do this, standard deviation of 1 round tested nodes is 0, will always
-		// selected before 2 or more rounds tested nodes
-		std = float64(stats.Average / 2)
-	} else {
-		variance := float64(0)
-		for _, rtt := range validRTTs {
-			variance += math.Pow(float64(rtt-stats.Average), 2)
-		}
-		std = math.Sqrt(variance / float64(cnt))
-	}
-	stats.Deviation = time.Duration(std)
-	return stats
-}
-
-func (h *HealthPingRTTS) findOutdated(now time.Time) int {
-	for i := h.cap - 1; i < 2*h.cap; i++ {
-		// from oldest to latest
-		idx := h.calcIndex(i)
-		validity := h.rtts[idx].time.Add(h.validity)
-		if h.lastUpdateAt.After(validity) {
-			return idx
-		}
-		if validity.Before(now) {
-			return idx
-		}
-	}
-	return -1
-}

app/observatory/burst/healthping_result_test.go

@@ -1,106 +0,0 @@
-package burst_test
-
-import (
-	"math"
-	reflect "reflect"
-	"testing"
-	"time"
-
-	"github.com/xtls/xray-core/app/observatory/burst"
-)
-
-func TestHealthPingResults(t *testing.T) {
-	rtts := []int64{60, 140, 60, 140, 60, 60, 140, 60, 140}
-	hr := burst.NewHealthPingResult(4, time.Hour)
-	for _, rtt := range rtts {
-		hr.Put(time.Duration(rtt))
-	}
-	rttFailed := time.Duration(math.MaxInt64)
-	expected := &burst.HealthPingStats{
-		All:       4,
-		Fail:      0,
-		Deviation: 40,
-		Average:   100,
-		Max:       140,
-		Min:       60,
-	}
-	actual := hr.Get()
-	if !reflect.DeepEqual(expected, actual) {
-		t.Errorf("expected: %v, actual: %v", expected, actual)
-	}
-	hr.Put(rttFailed)
-	hr.Put(rttFailed)
-	expected.Fail = 2
-	actual = hr.Get()
-	if !reflect.DeepEqual(expected, actual) {
-		t.Errorf("failed half-failures test, expected: %v, actual: %v", expected, actual)
-	}
-	hr.Put(rttFailed)
-	hr.Put(rttFailed)
-	expected = &burst.HealthPingStats{
-		All:       4,
-		Fail:      4,
-		Deviation: 0,
-		Average:   0,
-		Max:       0,
-		Min:       0,
-	}
-	actual = hr.Get()
-	if !reflect.DeepEqual(expected, actual) {
-		t.Errorf("failed all-failures test, expected: %v, actual: %v", expected, actual)
-	}
-}
-
-func TestHealthPingResultsIgnoreOutdated(t *testing.T) {
-	rtts := []int64{60, 140, 60, 140}
-	hr := burst.NewHealthPingResult(4, time.Duration(10)*time.Millisecond)
-	for i, rtt := range rtts {
-		if i == 2 {
-			// wait for previous 2 outdated
-			time.Sleep(time.Duration(10) * time.Millisecond)
-		}
-		hr.Put(time.Duration(rtt))
-	}
-	hr.Get()
-	expected := &burst.HealthPingStats{
-		All:       2,
-		Fail:      0,
-		Deviation: 40,
-		Average:   100,
-		Max:       140,
-		Min:       60,
-	}
-	actual := hr.Get()
-	if !reflect.DeepEqual(expected, actual) {
-		t.Errorf("failed 'half-outdated' test, expected: %v, actual: %v", expected, actual)
-	}
-	// wait for all outdated
-	time.Sleep(time.Duration(10) * time.Millisecond)
-	expected = &burst.HealthPingStats{
-		All:       0,
-		Fail:      0,
-		Deviation: 0,
-		Average:   0,
-		Max:       0,
-		Min:       0,
-	}
-	actual = hr.Get()
-	if !reflect.DeepEqual(expected, actual) {
-		t.Errorf("failed 'outdated / not-tested' test, expected: %v, actual: %v", expected, actual)
-	}
-
-	hr.Put(time.Duration(60))
-	expected = &burst.HealthPingStats{
-		All:  1,
-		Fail: 0,
-		// 1 sample, std=0.5rtt
-		Deviation: 30,
-		Average:   60,
-		Max:       60,
-		Min:       60,
-	}
-	actual = hr.Get()
-	if !reflect.DeepEqual(expected, actual) {
-		t.Errorf("expected: %v, actual: %v", expected, actual)
-	}
-}

app/observatory/burst/ping.go

@@ -1,69 +0,0 @@
-package burst
-
-import (
-	"context"
-	"net/http"
-	"time"
-
-	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/transport/internet/tagged"
-)
-
-type pingClient struct {
-	destination string
-	httpClient  *http.Client
-}
-
-func newPingClient(ctx context.Context, destination string, timeout time.Duration, handler string) *pingClient {
-	return &pingClient{
-		destination: destination,
-		httpClient:  newHTTPClient(ctx, handler, timeout),
-	}
-}
-
-func newDirectPingClient(destination string, timeout time.Duration) *pingClient {
-	return &pingClient{
-		destination: destination,
-		httpClient:  &http.Client{Timeout: timeout},
-	}
-}
-
-func newHTTPClient(ctxv context.Context, handler string, timeout time.Duration) *http.Client {
-	tr := &http.Transport{
-		DisableKeepAlives: true,
-		DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
-			dest, err := net.ParseDestination(network + ":" + addr)
-			if err != nil {
-				return nil, err
-			}
-			return tagged.Dialer(ctxv, dest, handler)
-		},
-	}
-	return &http.Client{
-		Transport: tr,
-		Timeout:   timeout,
-		// don't follow redirect
-		CheckRedirect: func(req *http.Request, via []*http.Request) error {
-			return http.ErrUseLastResponse
-		},
-	}
-}
-
-// MeasureDelay returns the delay time of the request to dest
-func (s *pingClient) MeasureDelay() (time.Duration, error) {
-	if s.httpClient == nil {
-		panic("pingClient no initialized")
-	}
-	req, err := http.NewRequest(http.MethodHead, s.destination, nil)
-	if err != nil {
-		return rttFailed, err
-	}
-	start := time.Now()
-	resp, err := s.httpClient.Do(req)
-	if err != nil {
-		return rttFailed, err
-	}
-	// don't wait for body
-	resp.Body.Close()
-	return time.Since(start), nil
-}

app/observatory/command/command.go

@@ -1,47 +0,0 @@
-package command
-
-import (
-	"context"
-
-	"github.com/xtls/xray-core/app/observatory"
-	"github.com/xtls/xray-core/common"
-	core "github.com/xtls/xray-core/core"
-	"github.com/xtls/xray-core/features/extension"
-	"google.golang.org/grpc"
-)
-
-type service struct {
-	UnimplementedObservatoryServiceServer
-	v *core.Instance
-
-	observatory extension.Observatory
-}
-
-func (s *service) GetOutboundStatus(ctx context.Context, request *GetOutboundStatusRequest) (*GetOutboundStatusResponse, error) {
-	resp, err := s.observatory.GetObservation(ctx)
-	if err != nil {
-		return nil, err
-	}
-	retdata := resp.(*observatory.ObservationResult)
-	return &GetOutboundStatusResponse{
-		Status: retdata,
-	}, nil
-}
-
-func (s *service) Register(server *grpc.Server) {
-	RegisterObservatoryServiceServer(server, s)
-}
-
-func init() {
-	common.Must(common.RegisterConfig((*Config)(nil), func(ctx context.Context, cfg interface{}) (interface{}, error) {
-		s := core.MustFromContext(ctx)
-		sv := &service{v: s}
-		err := s.RequireFeatures(func(Observatory extension.Observatory) {
-			sv.observatory = Observatory
-		})
-		if err != nil {
-			return nil, err
-		}
-		return sv, nil
-	}))
-}

app/observatory/command/command.pb.go

@@ -1,234 +0,0 @@
-// Code generated by protoc-gen-go. DO NOT EDIT.
-// versions:
-// 	protoc-gen-go v1.35.1
-// 	protoc        v5.28.2
-// source: app/observatory/command/command.proto
-
-package command
-
-import (
-	observatory "github.com/xtls/xray-core/app/observatory"
-	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 GetOutboundStatusRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-}
-
-func (x *GetOutboundStatusRequest) Reset() {
-	*x = GetOutboundStatusRequest{}
-	mi := &file_app_observatory_command_command_proto_msgTypes[0]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *GetOutboundStatusRequest) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*GetOutboundStatusRequest) ProtoMessage() {}
-
-func (x *GetOutboundStatusRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_app_observatory_command_command_proto_msgTypes[0]
-	if x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use GetOutboundStatusRequest.ProtoReflect.Descriptor instead.
-func (*GetOutboundStatusRequest) Descriptor() ([]byte, []int) {
-	return file_app_observatory_command_command_proto_rawDescGZIP(), []int{0}
-}
-
-type GetOutboundStatusResponse struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Status *observatory.ObservationResult `protobuf:"bytes,1,opt,name=status,proto3" json:"status,omitempty"`
-}
-
-func (x *GetOutboundStatusResponse) Reset() {
-	*x = GetOutboundStatusResponse{}
-	mi := &file_app_observatory_command_command_proto_msgTypes[1]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *GetOutboundStatusResponse) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*GetOutboundStatusResponse) ProtoMessage() {}
-
-func (x *GetOutboundStatusResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_app_observatory_command_command_proto_msgTypes[1]
-	if x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use GetOutboundStatusResponse.ProtoReflect.Descriptor instead.
-func (*GetOutboundStatusResponse) Descriptor() ([]byte, []int) {
-	return file_app_observatory_command_command_proto_rawDescGZIP(), []int{1}
-}
-
-func (x *GetOutboundStatusResponse) GetStatus() *observatory.ObservationResult {
-	if x != nil {
-		return x.Status
-	}
-	return nil
-}
-
-type Config struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-}
-
-func (x *Config) Reset() {
-	*x = Config{}
-	mi := &file_app_observatory_command_command_proto_msgTypes[2]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *Config) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*Config) ProtoMessage() {}
-
-func (x *Config) ProtoReflect() protoreflect.Message {
-	mi := &file_app_observatory_command_command_proto_msgTypes[2]
-	if x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use Config.ProtoReflect.Descriptor instead.
-func (*Config) Descriptor() ([]byte, []int) {
-	return file_app_observatory_command_command_proto_rawDescGZIP(), []int{2}
-}
-
-var File_app_observatory_command_command_proto protoreflect.FileDescriptor
-
-var file_app_observatory_command_command_proto_rawDesc = []byte{
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-	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
-}
-
-var (
-	file_app_observatory_command_command_proto_rawDescOnce sync.Once
-	file_app_observatory_command_command_proto_rawDescData = file_app_observatory_command_command_proto_rawDesc
-)
-
-func file_app_observatory_command_command_proto_rawDescGZIP() []byte {
-	file_app_observatory_command_command_proto_rawDescOnce.Do(func() {
-		file_app_observatory_command_command_proto_rawDescData = protoimpl.X.CompressGZIP(file_app_observatory_command_command_proto_rawDescData)
-	})
-	return file_app_observatory_command_command_proto_rawDescData
-}
-
-var file_app_observatory_command_command_proto_msgTypes = make([]protoimpl.MessageInfo, 3)
-var file_app_observatory_command_command_proto_goTypes = []any{
-	(*GetOutboundStatusRequest)(nil),      // 0: xray.core.app.observatory.command.GetOutboundStatusRequest
-	(*GetOutboundStatusResponse)(nil),     // 1: xray.core.app.observatory.command.GetOutboundStatusResponse
-	(*Config)(nil),                        // 2: xray.core.app.observatory.command.Config
-	(*observatory.ObservationResult)(nil), // 3: xray.core.app.observatory.ObservationResult
-}
-var file_app_observatory_command_command_proto_depIdxs = []int32{
-	3, // 0: xray.core.app.observatory.command.GetOutboundStatusResponse.status:type_name -> xray.core.app.observatory.ObservationResult
-	0, // 1: xray.core.app.observatory.command.ObservatoryService.GetOutboundStatus:input_type -> xray.core.app.observatory.command.GetOutboundStatusRequest
-	1, // 2: xray.core.app.observatory.command.ObservatoryService.GetOutboundStatus:output_type -> xray.core.app.observatory.command.GetOutboundStatusResponse
-	2, // [2:3] is the sub-list for method output_type
-	1, // [1:2] is the sub-list for method input_type
-	1, // [1:1] is the sub-list for extension type_name
-	1, // [1:1] is the sub-list for extension extendee
-	0, // [0:1] is the sub-list for field type_name
-}
-
-func init() { file_app_observatory_command_command_proto_init() }
-func file_app_observatory_command_command_proto_init() {
-	if File_app_observatory_command_command_proto != nil {
-		return
-	}
-	type x struct{}
-	out := protoimpl.TypeBuilder{
-		File: protoimpl.DescBuilder{
-			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
-			RawDescriptor: file_app_observatory_command_command_proto_rawDesc,
-			NumEnums:      0,
-			NumMessages:   3,
-			NumExtensions: 0,
-			NumServices:   1,
-		},
-		GoTypes:           file_app_observatory_command_command_proto_goTypes,
-		DependencyIndexes: file_app_observatory_command_command_proto_depIdxs,
-		MessageInfos:      file_app_observatory_command_command_proto_msgTypes,
-	}.Build()
-	File_app_observatory_command_command_proto = out.File
-	file_app_observatory_command_command_proto_rawDesc = nil
-	file_app_observatory_command_command_proto_goTypes = nil
-	file_app_observatory_command_command_proto_depIdxs = nil
-}

app/observatory/command/command.proto

@@ -1,24 +0,0 @@
-syntax = "proto3";
-
-package xray.core.app.observatory.command;
-option csharp_namespace = "Xray.Core.App.Observatory.Command";
-option go_package = "github.com/xtls/xray-core/app/observatory/command";
-option java_package = "com.xray.core.app.observatory.command";
-option java_multiple_files = true;
-
-import "app/observatory/config.proto";
-
-message GetOutboundStatusRequest {
-}
-
-message GetOutboundStatusResponse {
-  xray.core.app.observatory.ObservationResult status = 1;
-}
-
-service ObservatoryService {
-  rpc GetOutboundStatus(GetOutboundStatusRequest)
-      returns (GetOutboundStatusResponse) {}
-}
-
-
-message Config {}

app/observatory/command/command_grpc.pb.go

@@ -1,121 +0,0 @@
-// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
-// versions:
-// - protoc-gen-go-grpc v1.5.1
-// - protoc             v5.28.2
-// source: app/observatory/command/command.proto
-
-package command
-
-import (
-	context "context"
-	grpc "google.golang.org/grpc"
-	codes "google.golang.org/grpc/codes"
-	status "google.golang.org/grpc/status"
-)
-
-// This is a compile-time assertion to ensure that this generated file
-// is compatible with the grpc package it is being compiled against.
-// Requires gRPC-Go v1.64.0 or later.
-const _ = grpc.SupportPackageIsVersion9
-
-const (
-	ObservatoryService_GetOutboundStatus_FullMethodName = "/xray.core.app.observatory.command.ObservatoryService/GetOutboundStatus"
-)
-
-// ObservatoryServiceClient is the client API for ObservatoryService service.
-//
-// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
-type ObservatoryServiceClient interface {
-	GetOutboundStatus(ctx context.Context, in *GetOutboundStatusRequest, opts ...grpc.CallOption) (*GetOutboundStatusResponse, error)
-}
-
-type observatoryServiceClient struct {
-	cc grpc.ClientConnInterface
-}
-
-func NewObservatoryServiceClient(cc grpc.ClientConnInterface) ObservatoryServiceClient {
-	return &observatoryServiceClient{cc}
-}
-
-func (c *observatoryServiceClient) GetOutboundStatus(ctx context.Context, in *GetOutboundStatusRequest, opts ...grpc.CallOption) (*GetOutboundStatusResponse, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(GetOutboundStatusResponse)
-	err := c.cc.Invoke(ctx, ObservatoryService_GetOutboundStatus_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-// ObservatoryServiceServer is the server API for ObservatoryService service.
-// All implementations must embed UnimplementedObservatoryServiceServer
-// for forward compatibility.
-type ObservatoryServiceServer interface {
-	GetOutboundStatus(context.Context, *GetOutboundStatusRequest) (*GetOutboundStatusResponse, error)
-	mustEmbedUnimplementedObservatoryServiceServer()
-}
-
-// UnimplementedObservatoryServiceServer must be embedded to have
-// forward compatible implementations.
-//
-// NOTE: this should be embedded by value instead of pointer to avoid a nil
-// pointer dereference when methods are called.
-type UnimplementedObservatoryServiceServer struct{}
-
-func (UnimplementedObservatoryServiceServer) GetOutboundStatus(context.Context, *GetOutboundStatusRequest) (*GetOutboundStatusResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method GetOutboundStatus not implemented")
-}
-func (UnimplementedObservatoryServiceServer) mustEmbedUnimplementedObservatoryServiceServer() {}
-func (UnimplementedObservatoryServiceServer) testEmbeddedByValue()                            {}
-
-// UnsafeObservatoryServiceServer may be embedded to opt out of forward compatibility for this service.
-// Use of this interface is not recommended, as added methods to ObservatoryServiceServer will
-// result in compilation errors.
-type UnsafeObservatoryServiceServer interface {
-	mustEmbedUnimplementedObservatoryServiceServer()
-}
-
-func RegisterObservatoryServiceServer(s grpc.ServiceRegistrar, srv ObservatoryServiceServer) {
-	// If the following call pancis, it indicates UnimplementedObservatoryServiceServer was
-	// embedded by pointer and is nil.  This will cause panics if an
-	// unimplemented method is ever invoked, so we test this at initialization
-	// time to prevent it from happening at runtime later due to I/O.
-	if t, ok := srv.(interface{ testEmbeddedByValue() }); ok {
-		t.testEmbeddedByValue()
-	}
-	s.RegisterService(&ObservatoryService_ServiceDesc, srv)
-}
-
-func _ObservatoryService_GetOutboundStatus_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(GetOutboundStatusRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(ObservatoryServiceServer).GetOutboundStatus(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: ObservatoryService_GetOutboundStatus_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(ObservatoryServiceServer).GetOutboundStatus(ctx, req.(*GetOutboundStatusRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-// ObservatoryService_ServiceDesc is the grpc.ServiceDesc for ObservatoryService service.
-// It's only intended for direct use with grpc.RegisterService,
-// and not to be introspected or modified (even as a copy)
-var ObservatoryService_ServiceDesc = grpc.ServiceDesc{
-	ServiceName: "xray.core.app.observatory.command.ObservatoryService",
-	HandlerType: (*ObservatoryServiceServer)(nil),
-	Methods: []grpc.MethodDesc{
-		{
-			MethodName: "GetOutboundStatus",
-			Handler:    _ObservatoryService_GetOutboundStatus_Handler,
-		},
-	},
-	Streams:  []grpc.StreamDesc{},
-	Metadata: "app/observatory/command/command.proto",
-}

app/observatory/config.pb.go

@@ -1,568 +0,0 @@
-// Code generated by protoc-gen-go. DO NOT EDIT.
-// versions:
-// 	protoc-gen-go v1.35.1
-// 	protoc        v5.28.2
-// source: app/observatory/config.proto
-
-package observatory
-
-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 ObservationResult struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Status []*OutboundStatus `protobuf:"bytes,1,rep,name=status,proto3" json:"status,omitempty"`
-}
-
-func (x *ObservationResult) Reset() {
-	*x = ObservationResult{}
-	mi := &file_app_observatory_config_proto_msgTypes[0]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *ObservationResult) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*ObservationResult) ProtoMessage() {}
-
-func (x *ObservationResult) ProtoReflect() protoreflect.Message {
-	mi := &file_app_observatory_config_proto_msgTypes[0]
-	if x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use ObservationResult.ProtoReflect.Descriptor instead.
-func (*ObservationResult) Descriptor() ([]byte, []int) {
-	return file_app_observatory_config_proto_rawDescGZIP(), []int{0}
-}
-
-func (x *ObservationResult) GetStatus() []*OutboundStatus {
-	if x != nil {
-		return x.Status
-	}
-	return nil
-}
-
-type HealthPingMeasurementResult struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	All       int64 `protobuf:"varint,1,opt,name=all,proto3" json:"all,omitempty"`
-	Fail      int64 `protobuf:"varint,2,opt,name=fail,proto3" json:"fail,omitempty"`
-	Deviation int64 `protobuf:"varint,3,opt,name=deviation,proto3" json:"deviation,omitempty"`
-	Average   int64 `protobuf:"varint,4,opt,name=average,proto3" json:"average,omitempty"`
-	Max       int64 `protobuf:"varint,5,opt,name=max,proto3" json:"max,omitempty"`
-	Min       int64 `protobuf:"varint,6,opt,name=min,proto3" json:"min,omitempty"`
-}
-
-func (x *HealthPingMeasurementResult) Reset() {
-	*x = HealthPingMeasurementResult{}
-	mi := &file_app_observatory_config_proto_msgTypes[1]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *HealthPingMeasurementResult) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*HealthPingMeasurementResult) ProtoMessage() {}
-
-func (x *HealthPingMeasurementResult) ProtoReflect() protoreflect.Message {
-	mi := &file_app_observatory_config_proto_msgTypes[1]
-	if x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use HealthPingMeasurementResult.ProtoReflect.Descriptor instead.
-func (*HealthPingMeasurementResult) Descriptor() ([]byte, []int) {
-	return file_app_observatory_config_proto_rawDescGZIP(), []int{1}
-}
-
-func (x *HealthPingMeasurementResult) GetAll() int64 {
-	if x != nil {
-		return x.All
-	}
-	return 0
-}
-
-func (x *HealthPingMeasurementResult) GetFail() int64 {
-	if x != nil {
-		return x.Fail
-	}
-	return 0
-}
-
-func (x *HealthPingMeasurementResult) GetDeviation() int64 {
-	if x != nil {
-		return x.Deviation
-	}
-	return 0
-}
-
-func (x *HealthPingMeasurementResult) GetAverage() int64 {
-	if x != nil {
-		return x.Average
-	}
-	return 0
-}
-
-func (x *HealthPingMeasurementResult) GetMax() int64 {
-	if x != nil {
-		return x.Max
-	}
-	return 0
-}
-
-func (x *HealthPingMeasurementResult) GetMin() int64 {
-	if x != nil {
-		return x.Min
-	}
-	return 0
-}
-
-type OutboundStatus struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	// @Document Whether this outbound is usable
-	// @Restriction ReadOnlyForUser
-	Alive bool `protobuf:"varint,1,opt,name=alive,proto3" json:"alive,omitempty"`
-	// @Document The time for probe request to finish.
-	// @Type time.ms
-	// @Restriction ReadOnlyForUser
-	Delay int64 `protobuf:"varint,2,opt,name=delay,proto3" json:"delay,omitempty"`
-	// @Document The last error caused this outbound failed to relay probe request
-	// @Restriction NotMachineReadable
-	LastErrorReason string `protobuf:"bytes,3,opt,name=last_error_reason,json=lastErrorReason,proto3" json:"last_error_reason,omitempty"`
-	// @Document The outbound tag for this Server
-	// @Type id.outboundTag
-	OutboundTag string `protobuf:"bytes,4,opt,name=outbound_tag,json=outboundTag,proto3" json:"outbound_tag,omitempty"`
-	// @Document The time this outbound is known to be alive
-	// @Type id.outboundTag
-	LastSeenTime int64 `protobuf:"varint,5,opt,name=last_seen_time,json=lastSeenTime,proto3" json:"last_seen_time,omitempty"`
-	// @Document The time this outbound is tried
-	// @Type id.outboundTag
-	LastTryTime int64                        `protobuf:"varint,6,opt,name=last_try_time,json=lastTryTime,proto3" json:"last_try_time,omitempty"`
-	HealthPing  *HealthPingMeasurementResult `protobuf:"bytes,7,opt,name=health_ping,json=healthPing,proto3" json:"health_ping,omitempty"`
-}
-
-func (x *OutboundStatus) Reset() {
-	*x = OutboundStatus{}
-	mi := &file_app_observatory_config_proto_msgTypes[2]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *OutboundStatus) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*OutboundStatus) ProtoMessage() {}
-
-func (x *OutboundStatus) ProtoReflect() protoreflect.Message {
-	mi := &file_app_observatory_config_proto_msgTypes[2]
-	if x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use OutboundStatus.ProtoReflect.Descriptor instead.
-func (*OutboundStatus) Descriptor() ([]byte, []int) {
-	return file_app_observatory_config_proto_rawDescGZIP(), []int{2}
-}
-
-func (x *OutboundStatus) GetAlive() bool {
-	if x != nil {
-		return x.Alive
-	}
-	return false
-}
-
-func (x *OutboundStatus) GetDelay() int64 {
-	if x != nil {
-		return x.Delay
-	}
-	return 0
-}
-
-func (x *OutboundStatus) GetLastErrorReason() string {
-	if x != nil {
-		return x.LastErrorReason
-	}
-	return ""
-}
-
-func (x *OutboundStatus) GetOutboundTag() string {
-	if x != nil {
-		return x.OutboundTag
-	}
-	return ""
-}
-
-func (x *OutboundStatus) GetLastSeenTime() int64 {
-	if x != nil {
-		return x.LastSeenTime
-	}
-	return 0
-}
-
-func (x *OutboundStatus) GetLastTryTime() int64 {
-	if x != nil {
-		return x.LastTryTime
-	}
-	return 0
-}
-
-func (x *OutboundStatus) GetHealthPing() *HealthPingMeasurementResult {
-	if x != nil {
-		return x.HealthPing
-	}
-	return nil
-}
-
-type ProbeResult struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	// @Document Whether this outbound is usable
-	// @Restriction ReadOnlyForUser
-	Alive bool `protobuf:"varint,1,opt,name=alive,proto3" json:"alive,omitempty"`
-	// @Document The time for probe request to finish.
-	// @Type time.ms
-	// @Restriction ReadOnlyForUser
-	Delay int64 `protobuf:"varint,2,opt,name=delay,proto3" json:"delay,omitempty"`
-	// @Document The error caused this outbound failed to relay probe request
-	// @Restriction NotMachineReadable
-	LastErrorReason string `protobuf:"bytes,3,opt,name=last_error_reason,json=lastErrorReason,proto3" json:"last_error_reason,omitempty"`
-}
-
-func (x *ProbeResult) Reset() {
-	*x = ProbeResult{}
-	mi := &file_app_observatory_config_proto_msgTypes[3]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *ProbeResult) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*ProbeResult) ProtoMessage() {}
-
-func (x *ProbeResult) ProtoReflect() protoreflect.Message {
-	mi := &file_app_observatory_config_proto_msgTypes[3]
-	if x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use ProbeResult.ProtoReflect.Descriptor instead.
-func (*ProbeResult) Descriptor() ([]byte, []int) {
-	return file_app_observatory_config_proto_rawDescGZIP(), []int{3}
-}
-
-func (x *ProbeResult) GetAlive() bool {
-	if x != nil {
-		return x.Alive
-	}
-	return false
-}
-
-func (x *ProbeResult) GetDelay() int64 {
-	if x != nil {
-		return x.Delay
-	}
-	return 0
-}
-
-func (x *ProbeResult) GetLastErrorReason() string {
-	if x != nil {
-		return x.LastErrorReason
-	}
-	return ""
-}
-
-type Intensity struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	// @Document The time interval for a probe request in ms.
-	// @Type time.ms
-	ProbeInterval uint32 `protobuf:"varint,1,opt,name=probe_interval,json=probeInterval,proto3" json:"probe_interval,omitempty"`
-}
-
-func (x *Intensity) Reset() {
-	*x = Intensity{}
-	mi := &file_app_observatory_config_proto_msgTypes[4]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *Intensity) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*Intensity) ProtoMessage() {}
-
-func (x *Intensity) ProtoReflect() protoreflect.Message {
-	mi := &file_app_observatory_config_proto_msgTypes[4]
-	if x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use Intensity.ProtoReflect.Descriptor instead.
-func (*Intensity) Descriptor() ([]byte, []int) {
-	return file_app_observatory_config_proto_rawDescGZIP(), []int{4}
-}
-
-func (x *Intensity) GetProbeInterval() uint32 {
-	if x != nil {
-		return x.ProbeInterval
-	}
-	return 0
-}
-
-type Config struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	// @Document The selectors for outbound under observation
-	SubjectSelector   []string `protobuf:"bytes,2,rep,name=subject_selector,json=subjectSelector,proto3" json:"subject_selector,omitempty"`
-	ProbeUrl          string   `protobuf:"bytes,3,opt,name=probe_url,json=probeUrl,proto3" json:"probe_url,omitempty"`
-	ProbeInterval     int64    `protobuf:"varint,4,opt,name=probe_interval,json=probeInterval,proto3" json:"probe_interval,omitempty"`
-	EnableConcurrency bool     `protobuf:"varint,5,opt,name=enable_concurrency,json=enableConcurrency,proto3" json:"enable_concurrency,omitempty"`
-}
-
-func (x *Config) Reset() {
-	*x = Config{}
-	mi := &file_app_observatory_config_proto_msgTypes[5]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *Config) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*Config) ProtoMessage() {}
-
-func (x *Config) ProtoReflect() protoreflect.Message {
-	mi := &file_app_observatory_config_proto_msgTypes[5]
-	if x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use Config.ProtoReflect.Descriptor instead.
-func (*Config) Descriptor() ([]byte, []int) {
-	return file_app_observatory_config_proto_rawDescGZIP(), []int{5}
-}
-
-func (x *Config) GetSubjectSelector() []string {
-	if x != nil {
-		return x.SubjectSelector
-	}
-	return nil
-}
-
-func (x *Config) GetProbeUrl() string {
-	if x != nil {
-		return x.ProbeUrl
-	}
-	return ""
-}
-
-func (x *Config) GetProbeInterval() int64 {
-	if x != nil {
-		return x.ProbeInterval
-	}
-	return 0
-}
-
-func (x *Config) GetEnableConcurrency() bool {
-	if x != nil {
-		return x.EnableConcurrency
-	}
-	return false
-}
-
-var File_app_observatory_config_proto protoreflect.FileDescriptor
-
-var file_app_observatory_config_proto_rawDesc = []byte{
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-}
-
-var (
-	file_app_observatory_config_proto_rawDescOnce sync.Once
-	file_app_observatory_config_proto_rawDescData = file_app_observatory_config_proto_rawDesc
-)
-
-func file_app_observatory_config_proto_rawDescGZIP() []byte {
-	file_app_observatory_config_proto_rawDescOnce.Do(func() {
-		file_app_observatory_config_proto_rawDescData = protoimpl.X.CompressGZIP(file_app_observatory_config_proto_rawDescData)
-	})
-	return file_app_observatory_config_proto_rawDescData
-}
-
-var file_app_observatory_config_proto_msgTypes = make([]protoimpl.MessageInfo, 6)
-var file_app_observatory_config_proto_goTypes = []any{
-	(*ObservationResult)(nil),           // 0: xray.core.app.observatory.ObservationResult
-	(*HealthPingMeasurementResult)(nil), // 1: xray.core.app.observatory.HealthPingMeasurementResult
-	(*OutboundStatus)(nil),              // 2: xray.core.app.observatory.OutboundStatus
-	(*ProbeResult)(nil),                 // 3: xray.core.app.observatory.ProbeResult
-	(*Intensity)(nil),                   // 4: xray.core.app.observatory.Intensity
-	(*Config)(nil),                      // 5: xray.core.app.observatory.Config
-}
-var file_app_observatory_config_proto_depIdxs = []int32{
-	2, // 0: xray.core.app.observatory.ObservationResult.status:type_name -> xray.core.app.observatory.OutboundStatus
-	1, // 1: xray.core.app.observatory.OutboundStatus.health_ping:type_name -> xray.core.app.observatory.HealthPingMeasurementResult
-	2, // [2:2] is the sub-list for method output_type
-	2, // [2:2] is the sub-list for method input_type
-	2, // [2:2] is the sub-list for extension type_name
-	2, // [2:2] is the sub-list for extension extendee
-	0, // [0:2] is the sub-list for field type_name
-}
-
-func init() { file_app_observatory_config_proto_init() }
-func file_app_observatory_config_proto_init() {
-	if File_app_observatory_config_proto != nil {
-		return
-	}
-	type x struct{}
-	out := protoimpl.TypeBuilder{
-		File: protoimpl.DescBuilder{
-			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
-			RawDescriptor: file_app_observatory_config_proto_rawDesc,
-			NumEnums:      0,
-			NumMessages:   6,
-			NumExtensions: 0,
-			NumServices:   0,
-		},
-		GoTypes:           file_app_observatory_config_proto_goTypes,
-		DependencyIndexes: file_app_observatory_config_proto_depIdxs,
-		MessageInfos:      file_app_observatory_config_proto_msgTypes,
-	}.Build()
-	File_app_observatory_config_proto = out.File
-	file_app_observatory_config_proto_rawDesc = nil
-	file_app_observatory_config_proto_goTypes = nil
-	file_app_observatory_config_proto_depIdxs = nil
-}

app/observatory/config.proto

@@ -1,84 +0,0 @@
-syntax = "proto3";
-
-package xray.core.app.observatory;
-option csharp_namespace = "Xray.App.Observatory";
-option go_package = "github.com/xtls/xray-core/app/observatory";
-option java_package = "com.xray.app.observatory";
-option java_multiple_files = true;
-
-message ObservationResult {
-  repeated OutboundStatus status = 1;
-}
-
-message HealthPingMeasurementResult {
-  int64 all = 1;
-  int64 fail = 2;
-  int64 deviation = 3;
-  int64 average = 4;
-  int64 max = 5;
-  int64 min = 6;
-}
-
-message OutboundStatus{
-  /* @Document Whether this outbound is usable
-     @Restriction ReadOnlyForUser
-  */
-  bool alive = 1;
-  /* @Document The time for probe request to finish.
-     @Type time.ms
-     @Restriction ReadOnlyForUser
-  */
-  int64 delay = 2;
-  /* @Document The last error caused this outbound failed to relay probe request
-     @Restriction NotMachineReadable
-  */
-  string last_error_reason = 3;
-  /* @Document The outbound tag for this Server
-     @Type id.outboundTag
-  */
-  string outbound_tag = 4;
-  /* @Document The time this outbound is known to be alive
-   @Type id.outboundTag
-*/
-  int64 last_seen_time = 5;
-  /* @Document The time this outbound is tried
-   @Type id.outboundTag
-*/
-  int64 last_try_time = 6;
-
-  HealthPingMeasurementResult health_ping = 7;
-}
-
-message ProbeResult{
-  /* @Document Whether this outbound is usable
-     @Restriction ReadOnlyForUser
-  */
-  bool alive = 1;
-  /* @Document The time for probe request to finish.
-     @Type time.ms
-     @Restriction ReadOnlyForUser
-  */
-  int64 delay = 2;
-  /* @Document The error caused this outbound failed to relay probe request
-   @Restriction NotMachineReadable
-*/
-  string last_error_reason = 3;
-}
-
-message Intensity{
-  /* @Document The time interval for a probe request in ms.
-     @Type time.ms
-  */
-  uint32 probe_interval = 1;
-}
-message Config {
-  /* @Document The selectors for outbound under observation
-  */
-  repeated string subject_selector = 2;
-
-  string probe_url = 3;
-
-  int64 probe_interval = 4;
-
-  bool enable_concurrency = 5;
-}

app/observatory/explainErrors.go

@@ -1,26 +0,0 @@
-package observatory
-
-import "github.com/xtls/xray-core/common/errors"
-
-type errorCollector struct {
-	errors *errors.Error
-}
-
-func (e *errorCollector) SubmitError(err error) {
-	if e.errors == nil {
-		e.errors = errors.New("underlying connection error").Base(err)
-		return
-	}
-	e.errors = e.errors.Base(errors.New("underlying connection error").Base(err))
-}
-
-func newErrorCollector() *errorCollector {
-	return &errorCollector{}
-}
-
-func (e *errorCollector) UnderlyingError() error {
-	if e.errors == nil {
-		return errors.New("failed to produce report")
-	}
-	return e.errors
-}

app/observatory/observatory.go

@@ -1 +0,0 @@
-package observatory

app/observatory/observer.go

@@ -1,235 +0,0 @@
-package observatory
-
-import (
-	"context"
-	"net"
-	"net/http"
-	"net/url"
-	"sort"
-	"sync"
-	"time"
-
-	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/errors"
-	v2net "github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/common/session"
-	"github.com/xtls/xray-core/common/signal/done"
-	"github.com/xtls/xray-core/common/task"
-	"github.com/xtls/xray-core/core"
-	"github.com/xtls/xray-core/features/extension"
-	"github.com/xtls/xray-core/features/outbound"
-	"github.com/xtls/xray-core/transport/internet/tagged"
-	"google.golang.org/protobuf/proto"
-)
-
-type Observer struct {
-	config *Config
-	ctx    context.Context
-
-	statusLock sync.Mutex
-	status     []*OutboundStatus
-
-	finished *done.Instance
-
-	ohm outbound.Manager
-}
-
-func (o *Observer) GetObservation(ctx context.Context) (proto.Message, error) {
-	return &ObservationResult{Status: o.status}, nil
-}
-
-func (o *Observer) Type() interface{} {
-	return extension.ObservatoryType()
-}
-
-func (o *Observer) Start() error {
-	if o.config != nil && len(o.config.SubjectSelector) != 0 {
-		o.finished = done.New()
-		go o.background()
-	}
-	return nil
-}
-
-func (o *Observer) Close() error {
-	if o.finished != nil {
-		return o.finished.Close()
-	}
-	return nil
-}
-
-func (o *Observer) background() {
-	for !o.finished.Done() {
-		hs, ok := o.ohm.(outbound.HandlerSelector)
-		if !ok {
-			errors.LogInfo(o.ctx, "outbound.Manager is not a HandlerSelector")
-			return
-		}
-
-		outbounds := hs.Select(o.config.SubjectSelector)
-
-		o.updateStatus(outbounds)
-
-		sleepTime := time.Second * 10
-		if o.config.ProbeInterval != 0 {
-			sleepTime = time.Duration(o.config.ProbeInterval)
-		}
-
-		if !o.config.EnableConcurrency {
-			sort.Strings(outbounds)
-			for _, v := range outbounds {
-				result := o.probe(v)
-				o.updateStatusForResult(v, &result)
-				if o.finished.Done() {
-					return
-				}
-				time.Sleep(sleepTime)
-			}
-			continue
-		}
-
-		ch := make(chan struct{}, len(outbounds))
-
-		for _, v := range outbounds {
-			go func(v string) {
-				result := o.probe(v)
-				o.updateStatusForResult(v, &result)
-				ch <- struct{}{}
-			}(v)
-		}
-
-		for range outbounds {
-			select {
-			case <-ch:
-			case <-o.finished.Wait():
-				return
-			}
-		}
-		time.Sleep(sleepTime)
-	}
-}
-
-func (o *Observer) updateStatus(outbounds []string) {
-	o.statusLock.Lock()
-	defer o.statusLock.Unlock()
-	// TODO should remove old inbound that is removed
-	_ = outbounds
-}
-
-func (o *Observer) probe(outbound string) ProbeResult {
-	errorCollectorForRequest := newErrorCollector()
-
-	httpTransport := http.Transport{
-		Proxy: func(*http.Request) (*url.URL, error) {
-			return nil, nil
-		},
-		DialContext: func(ctx context.Context, network string, addr string) (net.Conn, error) {
-			var connection net.Conn
-			taskErr := task.Run(ctx, func() error {
-				// MUST use Xray's built in context system
-				dest, err := v2net.ParseDestination(network + ":" + addr)
-				if err != nil {
-					return errors.New("cannot understand address").Base(err)
-				}
-				trackedCtx := session.TrackedConnectionError(o.ctx, errorCollectorForRequest)
-				conn, err := tagged.Dialer(trackedCtx, dest, outbound)
-				if err != nil {
-					return errors.New("cannot dial remote address ", dest).Base(err)
-				}
-				connection = conn
-				return nil
-			})
-			if taskErr != nil {
-				return nil, errors.New("cannot finish connection").Base(taskErr)
-			}
-			return connection, nil
-		},
-		TLSHandshakeTimeout: time.Second * 5,
-	}
-	httpClient := &http.Client{
-		Transport: &httpTransport,
-		CheckRedirect: func(req *http.Request, via []*http.Request) error {
-			return http.ErrUseLastResponse
-		},
-		Jar:     nil,
-		Timeout: time.Second * 5,
-	}
-	var GETTime time.Duration
-	err := task.Run(o.ctx, func() error {
-		startTime := time.Now()
-		probeURL := "https://www.google.com/generate_204"
-		if o.config.ProbeUrl != "" {
-			probeURL = o.config.ProbeUrl
-		}
-		response, err := httpClient.Get(probeURL)
-		if err != nil {
-			return errors.New("outbound failed to relay connection").Base(err)
-		}
-		if response.Body != nil {
-			response.Body.Close()
-		}
-		endTime := time.Now()
-		GETTime = endTime.Sub(startTime)
-		return nil
-	})
-	if err != nil {
-		var errorMessage = "the outbound " + outbound + " is dead: GET request failed:" + err.Error() + "with outbound handler report underlying connection failed"
-		errors.LogInfoInner(o.ctx, errorCollectorForRequest.UnderlyingError(), errorMessage)
-		return ProbeResult{Alive: false, LastErrorReason: errorMessage}
-	}
-	errors.LogInfo(o.ctx, "the outbound ", outbound, " is alive:", GETTime.Seconds())
-	return ProbeResult{Alive: true, Delay: GETTime.Milliseconds()}
-}
-
-func (o *Observer) updateStatusForResult(outbound string, result *ProbeResult) {
-	o.statusLock.Lock()
-	defer o.statusLock.Unlock()
-	var status *OutboundStatus
-	if location := o.findStatusLocationLockHolderOnly(outbound); location != -1 {
-		status = o.status[location]
-	} else {
-		status = &OutboundStatus{}
-		o.status = append(o.status, status)
-	}
-
-	status.LastTryTime = time.Now().Unix()
-	status.OutboundTag = outbound
-	status.Alive = result.Alive
-	if result.Alive {
-		status.Delay = result.Delay
-		status.LastSeenTime = status.LastTryTime
-		status.LastErrorReason = ""
-	} else {
-		status.LastErrorReason = result.LastErrorReason
-		status.Delay = 99999999
-	}
-}
-
-func (o *Observer) findStatusLocationLockHolderOnly(outbound string) int {
-	for i, v := range o.status {
-		if v.OutboundTag == outbound {
-			return i
-		}
-	}
-	return -1
-}
-
-func New(ctx context.Context, config *Config) (*Observer, error) {
-	var outboundManager outbound.Manager
-	err := core.RequireFeatures(ctx, func(om outbound.Manager) {
-		outboundManager = om
-	})
-	if err != nil {
-		return nil, errors.New("Cannot get depended features").Base(err)
-	}
-	return &Observer{
-		config: config,
-		ctx:    ctx,
-		ohm:    outboundManager,
-	}, nil
-}
-
-func init() {
-	common.Must(common.RegisterConfig((*Config)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
-		return New(ctx, config.(*Config))
-	}))
-}

app/policy/config.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.35.1
+// 	protoc-gen-go v1.25.0
-// 	protoc        v5.28.2
+// 	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
@@ -30,9 +35,11 @@ type Second struct {
 
 func (x *Second) Reset() {
 	*x = Second{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_policy_config_proto_msgTypes[0]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *Second) String() string {
@@ -43,7 +50,7 @@ func (*Second) ProtoMessage() {}
 
 func (x *Second) ProtoReflect() protoreflect.Message {
 	mi := &file_app_policy_config_proto_msgTypes[0]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -77,9 +84,11 @@ type Policy struct {
 
 func (x *Policy) Reset() {
 	*x = Policy{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_policy_config_proto_msgTypes[1]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *Policy) String() string {
@@ -90,7 +99,7 @@ func (*Policy) ProtoMessage() {}
 
 func (x *Policy) ProtoReflect() protoreflect.Message {
 	mi := &file_app_policy_config_proto_msgTypes[1]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -136,9 +145,11 @@ type SystemPolicy struct {
 
 func (x *SystemPolicy) Reset() {
 	*x = SystemPolicy{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_policy_config_proto_msgTypes[2]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *SystemPolicy) String() string {
@@ -149,7 +160,7 @@ func (*SystemPolicy) ProtoMessage() {}
 
 func (x *SystemPolicy) ProtoReflect() protoreflect.Message {
 	mi := &file_app_policy_config_proto_msgTypes[2]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -182,9 +193,11 @@ type Config struct {
 
 func (x *Config) Reset() {
 	*x = Config{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_policy_config_proto_msgTypes[3]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *Config) String() string {
@@ -195,7 +208,7 @@ func (*Config) ProtoMessage() {}
 
 func (x *Config) ProtoReflect() protoreflect.Message {
 	mi := &file_app_policy_config_proto_msgTypes[3]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -238,9 +251,11 @@ type Policy_Timeout struct {
 
 func (x *Policy_Timeout) Reset() {
 	*x = Policy_Timeout{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_policy_config_proto_msgTypes[4]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *Policy_Timeout) String() string {
@@ -251,7 +266,7 @@ func (*Policy_Timeout) ProtoMessage() {}
 
 func (x *Policy_Timeout) ProtoReflect() protoreflect.Message {
 	mi := &file_app_policy_config_proto_msgTypes[4]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -305,9 +320,11 @@ type Policy_Stats struct {
 
 func (x *Policy_Stats) Reset() {
 	*x = Policy_Stats{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_policy_config_proto_msgTypes[5]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *Policy_Stats) String() string {
@@ -318,7 +335,7 @@ func (*Policy_Stats) ProtoMessage() {}
 
 func (x *Policy_Stats) ProtoReflect() protoreflect.Message {
 	mi := &file_app_policy_config_proto_msgTypes[5]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -358,9 +375,11 @@ type Policy_Buffer struct {
 
 func (x *Policy_Buffer) Reset() {
 	*x = Policy_Buffer{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_policy_config_proto_msgTypes[6]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *Policy_Buffer) String() string {
@@ -371,7 +390,7 @@ func (*Policy_Buffer) ProtoMessage() {}
 
 func (x *Policy_Buffer) ProtoReflect() protoreflect.Message {
 	mi := &file_app_policy_config_proto_msgTypes[6]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -406,9 +425,11 @@ type SystemPolicy_Stats struct {
 
 func (x *SystemPolicy_Stats) Reset() {
 	*x = SystemPolicy_Stats{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_policy_config_proto_msgTypes[7]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *SystemPolicy_Stats) String() string {
@@ -419,7 +440,7 @@ func (*SystemPolicy_Stats) ProtoMessage() {}
 
 func (x *SystemPolicy_Stats) ProtoReflect() protoreflect.Message {
 	mi := &file_app_policy_config_proto_msgTypes[7]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -554,7 +575,7 @@ func file_app_policy_config_proto_rawDescGZIP() []byte {
 }
 
 var file_app_policy_config_proto_msgTypes = make([]protoimpl.MessageInfo, 9)
-var file_app_policy_config_proto_goTypes = []any{
+var file_app_policy_config_proto_goTypes = []interface{}{
 	(*Second)(nil),             // 0: xray.app.policy.Second
 	(*Policy)(nil),             // 1: xray.app.policy.Policy
 	(*SystemPolicy)(nil),       // 2: xray.app.policy.SystemPolicy
@@ -589,6 +610,104 @@ func file_app_policy_config_proto_init() {
 	if File_app_policy_config_proto != nil {
 		return
 	}
+	if !protoimpl.UnsafeEnabled {
+		file_app_policy_config_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Second); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_policy_config_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Policy); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_policy_config_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*SystemPolicy); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_policy_config_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Config); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_policy_config_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Policy_Timeout); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_policy_config_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Policy_Stats); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_policy_config_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Policy_Buffer); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_policy_config_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*SystemPolicy_Stats); 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{

app/policy/errors.generated.go

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

app/policy/policy.go

@@ -1,2 +1,4 @@
 // Package policy is an implementation of policy.Manager feature.
 package policy
+
+//go:generate go run github.com/xtls/xray-core/common/errors/errorgen

app/proxyman/command/command.go

@@ -3,13 +3,13 @@ package command
 import (
 	"context"
 
+	grpc "google.golang.org/grpc"
+
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/inbound"
 	"github.com/xtls/xray-core/features/outbound"
 	"github.com/xtls/xray-core/proxy"
-	grpc "google.golang.org/grpc"
 )
 
 // InboundOperation is the interface for operations that applies to inbound handlers.
@@ -27,7 +27,7 @@ type OutboundOperation interface {
 func getInbound(handler inbound.Handler) (proxy.Inbound, error) {
 	gi, ok := handler.(proxy.GetInbound)
 	if !ok {
-		return nil, errors.New("can't get inbound proxy from handler.")
+		return nil, newError("can't get inbound proxy from handler.")
 	}
 	return gi.GetInbound(), nil
 }
@@ -40,11 +40,11 @@ func (op *AddUserOperation) ApplyInbound(ctx context.Context, handler inbound.Ha
 	}
 	um, ok := p.(proxy.UserManager)
 	if !ok {
-		return errors.New("proxy is not a UserManager")
+		return newError("proxy is not a UserManager")
 	}
 	mUser, err := op.User.ToMemoryUser()
 	if err != nil {
-		return errors.New("failed to parse user").Base(err)
+		return newError("failed to parse user").Base(err)
 	}
 	return um.AddUser(ctx, mUser)
 }
@@ -57,7 +57,7 @@ func (op *RemoveUserOperation) ApplyInbound(ctx context.Context, handler inbound
 	}
 	um, ok := p.(proxy.UserManager)
 	if !ok {
-		return errors.New("proxy is not a UserManager")
+		return newError("proxy is not a UserManager")
 	}
 	return um.RemoveUser(ctx, op.Email)
 }
@@ -83,16 +83,16 @@ func (s *handlerServer) RemoveInbound(ctx context.Context, request *RemoveInboun
 func (s *handlerServer) AlterInbound(ctx context.Context, request *AlterInboundRequest) (*AlterInboundResponse, error) {
 	rawOperation, err := request.Operation.GetInstance()
 	if err != nil {
-		return nil, errors.New("unknown operation").Base(err)
+		return nil, newError("unknown operation").Base(err)
 	}
 	operation, ok := rawOperation.(InboundOperation)
 	if !ok {
-		return nil, errors.New("not an inbound operation")
+		return nil, newError("not an inbound operation")
 	}
 
 	handler, err := s.ihm.GetHandler(ctx, request.Tag)
 	if err != nil {
-		return nil, errors.New("failed to get handler: ", request.Tag).Base(err)
+		return nil, newError("failed to get handler: ", request.Tag).Base(err)
 	}
 
 	return &AlterInboundResponse{}, operation.ApplyInbound(ctx, handler)
@@ -112,11 +112,11 @@ func (s *handlerServer) RemoveOutbound(ctx context.Context, request *RemoveOutbo
 func (s *handlerServer) AlterOutbound(ctx context.Context, request *AlterOutboundRequest) (*AlterOutboundResponse, error) {
 	rawOperation, err := request.Operation.GetInstance()
 	if err != nil {
-		return nil, errors.New("unknown operation").Base(err)
+		return nil, newError("unknown operation").Base(err)
 	}
 	operation, ok := rawOperation.(OutboundOperation)
 	if !ok {
-		return nil, errors.New("not an outbound operation")
+		return nil, newError("not an outbound operation")
 	}
 
 	handler := s.ohm.GetHandler(request.Tag)

app/proxyman/command/command.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.35.1
+// 	protoc-gen-go v1.25.0
-// 	protoc        v5.28.2
+// 	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
@@ -33,9 +38,11 @@ type AddUserOperation struct {
 
 func (x *AddUserOperation) Reset() {
 	*x = AddUserOperation{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_proxyman_command_command_proto_msgTypes[0]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *AddUserOperation) String() string {
@@ -46,7 +53,7 @@ func (*AddUserOperation) ProtoMessage() {}
 
 func (x *AddUserOperation) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_command_command_proto_msgTypes[0]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -78,9 +85,11 @@ type RemoveUserOperation struct {
 
 func (x *RemoveUserOperation) Reset() {
 	*x = RemoveUserOperation{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_proxyman_command_command_proto_msgTypes[1]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *RemoveUserOperation) String() string {
@@ -91,7 +100,7 @@ func (*RemoveUserOperation) ProtoMessage() {}
 
 func (x *RemoveUserOperation) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_command_command_proto_msgTypes[1]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -123,9 +132,11 @@ type AddInboundRequest struct {
 
 func (x *AddInboundRequest) Reset() {
 	*x = AddInboundRequest{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_proxyman_command_command_proto_msgTypes[2]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *AddInboundRequest) String() string {
@@ -136,7 +147,7 @@ func (*AddInboundRequest) ProtoMessage() {}
 
 func (x *AddInboundRequest) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_command_command_proto_msgTypes[2]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -166,9 +177,11 @@ type AddInboundResponse struct {
 
 func (x *AddInboundResponse) Reset() {
 	*x = AddInboundResponse{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_proxyman_command_command_proto_msgTypes[3]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *AddInboundResponse) String() string {
@@ -179,7 +192,7 @@ func (*AddInboundResponse) ProtoMessage() {}
 
 func (x *AddInboundResponse) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_command_command_proto_msgTypes[3]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -204,9 +217,11 @@ type RemoveInboundRequest struct {
 
 func (x *RemoveInboundRequest) Reset() {
 	*x = RemoveInboundRequest{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_proxyman_command_command_proto_msgTypes[4]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *RemoveInboundRequest) String() string {
@@ -217,7 +232,7 @@ func (*RemoveInboundRequest) ProtoMessage() {}
 
 func (x *RemoveInboundRequest) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_command_command_proto_msgTypes[4]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -247,9 +262,11 @@ type RemoveInboundResponse struct {
 
 func (x *RemoveInboundResponse) Reset() {
 	*x = RemoveInboundResponse{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_proxyman_command_command_proto_msgTypes[5]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *RemoveInboundResponse) String() string {
@@ -260,7 +277,7 @@ func (*RemoveInboundResponse) ProtoMessage() {}
 
 func (x *RemoveInboundResponse) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_command_command_proto_msgTypes[5]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -286,9 +303,11 @@ type AlterInboundRequest struct {
 
 func (x *AlterInboundRequest) Reset() {
 	*x = AlterInboundRequest{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_proxyman_command_command_proto_msgTypes[6]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *AlterInboundRequest) String() string {
@@ -299,7 +318,7 @@ func (*AlterInboundRequest) ProtoMessage() {}
 
 func (x *AlterInboundRequest) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_command_command_proto_msgTypes[6]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -336,9 +355,11 @@ type AlterInboundResponse struct {
 
 func (x *AlterInboundResponse) Reset() {
 	*x = AlterInboundResponse{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_proxyman_command_command_proto_msgTypes[7]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *AlterInboundResponse) String() string {
@@ -349,7 +370,7 @@ func (*AlterInboundResponse) ProtoMessage() {}
 
 func (x *AlterInboundResponse) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_command_command_proto_msgTypes[7]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -374,9 +395,11 @@ type AddOutboundRequest struct {
 
 func (x *AddOutboundRequest) Reset() {
 	*x = AddOutboundRequest{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_proxyman_command_command_proto_msgTypes[8]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *AddOutboundRequest) String() string {
@@ -387,7 +410,7 @@ func (*AddOutboundRequest) ProtoMessage() {}
 
 func (x *AddOutboundRequest) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_command_command_proto_msgTypes[8]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -417,9 +440,11 @@ type AddOutboundResponse struct {
 
 func (x *AddOutboundResponse) Reset() {
 	*x = AddOutboundResponse{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_proxyman_command_command_proto_msgTypes[9]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *AddOutboundResponse) String() string {
@@ -430,7 +455,7 @@ func (*AddOutboundResponse) ProtoMessage() {}
 
 func (x *AddOutboundResponse) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_command_command_proto_msgTypes[9]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -455,9 +480,11 @@ type RemoveOutboundRequest struct {
 
 func (x *RemoveOutboundRequest) Reset() {
 	*x = RemoveOutboundRequest{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_proxyman_command_command_proto_msgTypes[10]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *RemoveOutboundRequest) String() string {
@@ -468,7 +495,7 @@ func (*RemoveOutboundRequest) ProtoMessage() {}
 
 func (x *RemoveOutboundRequest) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_command_command_proto_msgTypes[10]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -498,9 +525,11 @@ type RemoveOutboundResponse struct {
 
 func (x *RemoveOutboundResponse) Reset() {
 	*x = RemoveOutboundResponse{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_proxyman_command_command_proto_msgTypes[11]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *RemoveOutboundResponse) String() string {
@@ -511,7 +540,7 @@ func (*RemoveOutboundResponse) ProtoMessage() {}
 
 func (x *RemoveOutboundResponse) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_command_command_proto_msgTypes[11]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -537,9 +566,11 @@ type AlterOutboundRequest struct {
 
 func (x *AlterOutboundRequest) Reset() {
 	*x = AlterOutboundRequest{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_proxyman_command_command_proto_msgTypes[12]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *AlterOutboundRequest) String() string {
@@ -550,7 +581,7 @@ func (*AlterOutboundRequest) ProtoMessage() {}
 
 func (x *AlterOutboundRequest) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_command_command_proto_msgTypes[12]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -587,9 +618,11 @@ type AlterOutboundResponse struct {
 
 func (x *AlterOutboundResponse) Reset() {
 	*x = AlterOutboundResponse{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_proxyman_command_command_proto_msgTypes[13]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *AlterOutboundResponse) String() string {
@@ -600,7 +633,7 @@ func (*AlterOutboundResponse) ProtoMessage() {}
 
 func (x *AlterOutboundResponse) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_command_command_proto_msgTypes[13]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -623,9 +656,11 @@ type Config struct {
 
 func (x *Config) Reset() {
 	*x = Config{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_proxyman_command_command_proto_msgTypes[14]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *Config) String() string {
@@ -636,7 +671,7 @@ func (*Config) ProtoMessage() {}
 
 func (x *Config) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_command_command_proto_msgTypes[14]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -776,7 +811,7 @@ func file_app_proxyman_command_command_proto_rawDescGZIP() []byte {
 }
 
 var file_app_proxyman_command_command_proto_msgTypes = make([]protoimpl.MessageInfo, 15)
-var file_app_proxyman_command_command_proto_goTypes = []any{
+var file_app_proxyman_command_command_proto_goTypes = []interface{}{
 	(*AddUserOperation)(nil),           // 0: xray.app.proxyman.command.AddUserOperation
 	(*RemoveUserOperation)(nil),        // 1: xray.app.proxyman.command.RemoveUserOperation
 	(*AddInboundRequest)(nil),          // 2: xray.app.proxyman.command.AddInboundRequest
@@ -827,6 +862,188 @@ func file_app_proxyman_command_command_proto_init() {
 	if File_app_proxyman_command_command_proto != nil {
 		return
 	}
+	if !protoimpl.UnsafeEnabled {
+		file_app_proxyman_command_command_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*AddUserOperation); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_proxyman_command_command_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*RemoveUserOperation); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_proxyman_command_command_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*AddInboundRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_proxyman_command_command_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*AddInboundResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_proxyman_command_command_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*RemoveInboundRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_proxyman_command_command_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*RemoveInboundResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_proxyman_command_command_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*AlterInboundRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_proxyman_command_command_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*AlterInboundResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_proxyman_command_command_proto_msgTypes[8].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*AddOutboundRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_proxyman_command_command_proto_msgTypes[9].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*AddOutboundResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_proxyman_command_command_proto_msgTypes[10].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*RemoveOutboundRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_proxyman_command_command_proto_msgTypes[11].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*RemoveOutboundResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_proxyman_command_command_proto_msgTypes[12].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*AlterOutboundRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_proxyman_command_command_proto_msgTypes[13].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*AlterOutboundResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_proxyman_command_command_proto_msgTypes[14].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Config); 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{

app/proxyman/command/command_grpc.pb.go

@@ -1,8 +1,4 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
-// versions:
-// - protoc-gen-go-grpc v1.5.1
-// - protoc             v5.28.2
-// source: app/proxyman/command/command.proto
 
 package command
 
@@ -15,17 +11,8 @@ import (
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-// Requires gRPC-Go v1.64.0 or later.
+// Requires gRPC-Go v1.32.0 or later.
-const _ = grpc.SupportPackageIsVersion9
+const _ = grpc.SupportPackageIsVersion7
-
-const (
-	HandlerService_AddInbound_FullMethodName     = "/xray.app.proxyman.command.HandlerService/AddInbound"
-	HandlerService_RemoveInbound_FullMethodName  = "/xray.app.proxyman.command.HandlerService/RemoveInbound"
-	HandlerService_AlterInbound_FullMethodName   = "/xray.app.proxyman.command.HandlerService/AlterInbound"
-	HandlerService_AddOutbound_FullMethodName    = "/xray.app.proxyman.command.HandlerService/AddOutbound"
-	HandlerService_RemoveOutbound_FullMethodName = "/xray.app.proxyman.command.HandlerService/RemoveOutbound"
-	HandlerService_AlterOutbound_FullMethodName  = "/xray.app.proxyman.command.HandlerService/AlterOutbound"
-)
 
 // HandlerServiceClient is the client API for HandlerService service.
 //
@@ -48,9 +35,8 @@ func NewHandlerServiceClient(cc grpc.ClientConnInterface) HandlerServiceClient {
 }
 
 func (c *handlerServiceClient) AddInbound(ctx context.Context, in *AddInboundRequest, opts ...grpc.CallOption) (*AddInboundResponse, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
 	out := new(AddInboundResponse)
-	err := c.cc.Invoke(ctx, HandlerService_AddInbound_FullMethodName, in, out, cOpts...)
+	err := c.cc.Invoke(ctx, "/xray.app.proxyman.command.HandlerService/AddInbound", in, out, opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -58,9 +44,8 @@ func (c *handlerServiceClient) AddInbound(ctx context.Context, in *AddInboundReq
 }
 
 func (c *handlerServiceClient) RemoveInbound(ctx context.Context, in *RemoveInboundRequest, opts ...grpc.CallOption) (*RemoveInboundResponse, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
 	out := new(RemoveInboundResponse)
-	err := c.cc.Invoke(ctx, HandlerService_RemoveInbound_FullMethodName, in, out, cOpts...)
+	err := c.cc.Invoke(ctx, "/xray.app.proxyman.command.HandlerService/RemoveInbound", in, out, opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -68,9 +53,8 @@ func (c *handlerServiceClient) RemoveInbound(ctx context.Context, in *RemoveInbo
 }
 
 func (c *handlerServiceClient) AlterInbound(ctx context.Context, in *AlterInboundRequest, opts ...grpc.CallOption) (*AlterInboundResponse, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
 	out := new(AlterInboundResponse)
-	err := c.cc.Invoke(ctx, HandlerService_AlterInbound_FullMethodName, in, out, cOpts...)
+	err := c.cc.Invoke(ctx, "/xray.app.proxyman.command.HandlerService/AlterInbound", in, out, opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -78,9 +62,8 @@ func (c *handlerServiceClient) AlterInbound(ctx context.Context, in *AlterInboun
 }
 
 func (c *handlerServiceClient) AddOutbound(ctx context.Context, in *AddOutboundRequest, opts ...grpc.CallOption) (*AddOutboundResponse, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
 	out := new(AddOutboundResponse)
-	err := c.cc.Invoke(ctx, HandlerService_AddOutbound_FullMethodName, in, out, cOpts...)
+	err := c.cc.Invoke(ctx, "/xray.app.proxyman.command.HandlerService/AddOutbound", in, out, opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -88,9 +71,8 @@ func (c *handlerServiceClient) AddOutbound(ctx context.Context, in *AddOutboundR
 }
 
 func (c *handlerServiceClient) RemoveOutbound(ctx context.Context, in *RemoveOutboundRequest, opts ...grpc.CallOption) (*RemoveOutboundResponse, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
 	out := new(RemoveOutboundResponse)
-	err := c.cc.Invoke(ctx, HandlerService_RemoveOutbound_FullMethodName, in, out, cOpts...)
+	err := c.cc.Invoke(ctx, "/xray.app.proxyman.command.HandlerService/RemoveOutbound", in, out, opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -98,9 +80,8 @@ func (c *handlerServiceClient) RemoveOutbound(ctx context.Context, in *RemoveOut
 }
 
 func (c *handlerServiceClient) AlterOutbound(ctx context.Context, in *AlterOutboundRequest, opts ...grpc.CallOption) (*AlterOutboundResponse, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
 	out := new(AlterOutboundResponse)
-	err := c.cc.Invoke(ctx, HandlerService_AlterOutbound_FullMethodName, in, out, cOpts...)
+	err := c.cc.Invoke(ctx, "/xray.app.proxyman.command.HandlerService/AlterOutbound", in, out, opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -109,7 +90,7 @@ func (c *handlerServiceClient) AlterOutbound(ctx context.Context, in *AlterOutbo
 
 // HandlerServiceServer is the server API for HandlerService service.
 // All implementations must embed UnimplementedHandlerServiceServer
-// for forward compatibility.
+// for forward compatibility
 type HandlerServiceServer interface {
 	AddInbound(context.Context, *AddInboundRequest) (*AddInboundResponse, error)
 	RemoveInbound(context.Context, *RemoveInboundRequest) (*RemoveInboundResponse, error)
@@ -120,12 +101,9 @@ type HandlerServiceServer interface {
 	mustEmbedUnimplementedHandlerServiceServer()
 }
 
-// UnimplementedHandlerServiceServer must be embedded to have
+// UnimplementedHandlerServiceServer must be embedded to have forward compatible implementations.
-// forward compatible implementations.
+type UnimplementedHandlerServiceServer struct {
-//
+}
-// NOTE: this should be embedded by value instead of pointer to avoid a nil
-// pointer dereference when methods are called.
-type UnimplementedHandlerServiceServer struct{}
 
 func (UnimplementedHandlerServiceServer) AddInbound(context.Context, *AddInboundRequest) (*AddInboundResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method AddInbound not implemented")
@@ -146,7 +124,6 @@ func (UnimplementedHandlerServiceServer) AlterOutbound(context.Context, *AlterOu
 	return nil, status.Errorf(codes.Unimplemented, "method AlterOutbound not implemented")
 }
 func (UnimplementedHandlerServiceServer) mustEmbedUnimplementedHandlerServiceServer() {}
-func (UnimplementedHandlerServiceServer) testEmbeddedByValue()                        {}
 
 // UnsafeHandlerServiceServer may be embedded to opt out of forward compatibility for this service.
 // Use of this interface is not recommended, as added methods to HandlerServiceServer will
@@ -156,13 +133,6 @@ type UnsafeHandlerServiceServer interface {
 }
 
 func RegisterHandlerServiceServer(s grpc.ServiceRegistrar, srv HandlerServiceServer) {
-	// If the following call pancis, it indicates UnimplementedHandlerServiceServer was
-	// embedded by pointer and is nil.  This will cause panics if an
-	// unimplemented method is ever invoked, so we test this at initialization
-	// time to prevent it from happening at runtime later due to I/O.
-	if t, ok := srv.(interface{ testEmbeddedByValue() }); ok {
-		t.testEmbeddedByValue()
-	}
 	s.RegisterService(&HandlerService_ServiceDesc, srv)
 }
 
@@ -176,7 +146,7 @@ func _HandlerService_AddInbound_Handler(srv interface{}, ctx context.Context, de
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: HandlerService_AddInbound_FullMethodName,
+		FullMethod: "/xray.app.proxyman.command.HandlerService/AddInbound",
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(HandlerServiceServer).AddInbound(ctx, req.(*AddInboundRequest))
@@ -194,7 +164,7 @@ func _HandlerService_RemoveInbound_Handler(srv interface{}, ctx context.Context,
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: HandlerService_RemoveInbound_FullMethodName,
+		FullMethod: "/xray.app.proxyman.command.HandlerService/RemoveInbound",
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(HandlerServiceServer).RemoveInbound(ctx, req.(*RemoveInboundRequest))
@@ -212,7 +182,7 @@ func _HandlerService_AlterInbound_Handler(srv interface{}, ctx context.Context,
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: HandlerService_AlterInbound_FullMethodName,
+		FullMethod: "/xray.app.proxyman.command.HandlerService/AlterInbound",
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(HandlerServiceServer).AlterInbound(ctx, req.(*AlterInboundRequest))
@@ -230,7 +200,7 @@ func _HandlerService_AddOutbound_Handler(srv interface{}, ctx context.Context, d
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: HandlerService_AddOutbound_FullMethodName,
+		FullMethod: "/xray.app.proxyman.command.HandlerService/AddOutbound",
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(HandlerServiceServer).AddOutbound(ctx, req.(*AddOutboundRequest))
@@ -248,7 +218,7 @@ func _HandlerService_RemoveOutbound_Handler(srv interface{}, ctx context.Context
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: HandlerService_RemoveOutbound_FullMethodName,
+		FullMethod: "/xray.app.proxyman.command.HandlerService/RemoveOutbound",
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(HandlerServiceServer).RemoveOutbound(ctx, req.(*RemoveOutboundRequest))
@@ -266,7 +236,7 @@ func _HandlerService_AlterOutbound_Handler(srv interface{}, ctx context.Context,
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: HandlerService_AlterOutbound_FullMethodName,
+		FullMethod: "/xray.app.proxyman.command.HandlerService/AlterOutbound",
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(HandlerServiceServer).AlterOutbound(ctx, req.(*AlterOutboundRequest))

app/proxyman/command/doc.go

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

app/proxyman/command/errors.generated.go

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

app/proxyman/config.go

@@ -19,5 +19,21 @@ func (c *ReceiverConfig) GetEffectiveSniffingSettings() *SniffingConfig {
 		return c.SniffingSettings
 	}
 
+	if len(c.DomainOverride) > 0 {
+		var p []string
+		for _, kd := range c.DomainOverride {
+			switch kd {
+			case KnownProtocols_HTTP:
+				p = append(p, "http")
+			case KnownProtocols_TLS:
+				p = append(p, "tls")
+			}
+		}
+		return &SniffingConfig{
+			Enabled:             true,
+			DestinationOverride: p,
+		}
+	}
+
 	return nil
 }

app/proxyman/config.pb.go

@@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.35.1
+// 	protoc-gen-go v1.25.0
-// 	protoc        v5.28.2
+// 	protoc        (unknown)
 // 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 +24,56 @@ 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 (
+	KnownProtocols_HTTP KnownProtocols = 0
+	KnownProtocols_TLS  KnownProtocols = 1
+)
+
+// Enum value maps for KnownProtocols.
+var (
+	KnownProtocols_name = map[int32]string{
+		0: "HTTP",
+		1: "TLS",
+	}
+	KnownProtocols_value = map[string]int32{
+		"HTTP": 0,
+		"TLS":  1,
+	}
+)
+
+func (x KnownProtocols) Enum() *KnownProtocols {
+	p := new(KnownProtocols)
+	*p = x
+	return p
+}
+
+func (x KnownProtocols) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (KnownProtocols) Descriptor() protoreflect.EnumDescriptor {
+	return file_app_proxyman_config_proto_enumTypes[0].Descriptor()
+}
+
+func (KnownProtocols) Type() protoreflect.EnumType {
+	return &file_app_proxyman_config_proto_enumTypes[0]
+}
+
+func (x KnownProtocols) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Use KnownProtocols.Descriptor instead.
+func (KnownProtocols) EnumDescriptor() ([]byte, []int) {
+	return file_app_proxyman_config_proto_rawDescGZIP(), []int{0}
+}
+
 type AllocationStrategy_Type int32
 
 const (
@@ -59,11 +110,11 @@ func (x AllocationStrategy_Type) String() string {
 }
 
 func (AllocationStrategy_Type) Descriptor() protoreflect.EnumDescriptor {
-	return file_app_proxyman_config_proto_enumTypes[0].Descriptor()
+	return file_app_proxyman_config_proto_enumTypes[1].Descriptor()
 }
 
 func (AllocationStrategy_Type) Type() protoreflect.EnumType {
-	return &file_app_proxyman_config_proto_enumTypes[0]
+	return &file_app_proxyman_config_proto_enumTypes[1]
 }
 
 func (x AllocationStrategy_Type) Number() protoreflect.EnumNumber {
@@ -83,9 +134,11 @@ type InboundConfig struct {
 
 func (x *InboundConfig) Reset() {
 	*x = InboundConfig{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_proxyman_config_proto_msgTypes[0]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *InboundConfig) String() string {
@@ -96,7 +149,7 @@ func (*InboundConfig) ProtoMessage() {}
 
 func (x *InboundConfig) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_config_proto_msgTypes[0]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -127,9 +180,11 @@ type AllocationStrategy struct {
 
 func (x *AllocationStrategy) Reset() {
 	*x = AllocationStrategy{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_proxyman_config_proto_msgTypes[1]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *AllocationStrategy) String() string {
@@ -140,7 +195,7 @@ func (*AllocationStrategy) ProtoMessage() {}
 
 func (x *AllocationStrategy) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_config_proto_msgTypes[1]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -188,17 +243,17 @@ type SniffingConfig struct {
 	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
+	// Can be used to support SMTP like protocol where server send the first message.
-	// message.
 	MetadataOnly bool `protobuf:"varint,4,opt,name=metadata_only,json=metadataOnly,proto3" json:"metadata_only,omitempty"`
-	RouteOnly    bool `protobuf:"varint,5,opt,name=route_only,json=routeOnly,proto3" json:"route_only,omitempty"`
 }
 
 func (x *SniffingConfig) Reset() {
 	*x = SniffingConfig{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_proxyman_config_proto_msgTypes[2]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *SniffingConfig) String() string {
@@ -209,7 +264,7 @@ func (*SniffingConfig) ProtoMessage() {}
 
 func (x *SniffingConfig) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_config_proto_msgTypes[2]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -252,33 +307,33 @@ func (x *SniffingConfig) GetMetadataOnly() bool {
 	return false
 }
 
-func (x *SniffingConfig) GetRouteOnly() bool {
-	if x != nil {
-		return x.RouteOnly
-	}
-	return false
-}
-
 type ReceiverConfig struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	// PortList specifies the ports which the Receiver should listen on.
+	// PortRange specifies the ports which the Receiver should listen on.
-	PortList *net.PortList `protobuf:"bytes,1,opt,name=port_list,json=portList,proto3" json:"port_list,omitempty"`
+	PortRange *net.PortRange `protobuf:"bytes,1,opt,name=port_range,json=portRange,proto3" json:"port_range,omitempty"`
 	// Listen specifies the IP address that the Receiver should listen on.
 	Listen                     *net.IPOrDomain        `protobuf:"bytes,2,opt,name=listen,proto3" json:"listen,omitempty"`
 	AllocationStrategy         *AllocationStrategy    `protobuf:"bytes,3,opt,name=allocation_strategy,json=allocationStrategy,proto3" json:"allocation_strategy,omitempty"`
 	StreamSettings             *internet.StreamConfig `protobuf:"bytes,4,opt,name=stream_settings,json=streamSettings,proto3" json:"stream_settings,omitempty"`
 	ReceiveOriginalDestination bool                   `protobuf:"varint,5,opt,name=receive_original_destination,json=receiveOriginalDestination,proto3" json:"receive_original_destination,omitempty"`
-	SniffingSettings           *SniffingConfig        `protobuf:"bytes,7,opt,name=sniffing_settings,json=sniffingSettings,proto3" json:"sniffing_settings,omitempty"`
+	// Override domains for the given protocol.
+	// Deprecated. Use sniffing_settings.
+	//
+	// Deprecated: Do not use.
+	DomainOverride   []KnownProtocols `protobuf:"varint,7,rep,packed,name=domain_override,json=domainOverride,proto3,enum=xray.app.proxyman.KnownProtocols" json:"domain_override,omitempty"`
+	SniffingSettings *SniffingConfig  `protobuf:"bytes,8,opt,name=sniffing_settings,json=sniffingSettings,proto3" json:"sniffing_settings,omitempty"`
 }
 
 func (x *ReceiverConfig) Reset() {
 	*x = ReceiverConfig{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_proxyman_config_proto_msgTypes[3]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *ReceiverConfig) String() string {
@@ -289,7 +344,7 @@ func (*ReceiverConfig) ProtoMessage() {}
 
 func (x *ReceiverConfig) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_config_proto_msgTypes[3]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -304,9 +359,9 @@ func (*ReceiverConfig) Descriptor() ([]byte, []int) {
 	return file_app_proxyman_config_proto_rawDescGZIP(), []int{3}
 }
 
-func (x *ReceiverConfig) GetPortList() *net.PortList {
+func (x *ReceiverConfig) GetPortRange() *net.PortRange {
 	if x != nil {
-		return x.PortList
+		return x.PortRange
 	}
 	return nil
 }
@@ -339,6 +394,14 @@ func (x *ReceiverConfig) GetReceiveOriginalDestination() bool {
 	return false
 }
 
+// Deprecated: Do not use.
+func (x *ReceiverConfig) GetDomainOverride() []KnownProtocols {
+	if x != nil {
+		return x.DomainOverride
+	}
+	return nil
+}
+
 func (x *ReceiverConfig) GetSniffingSettings() *SniffingConfig {
 	if x != nil {
 		return x.SniffingSettings
@@ -358,9 +421,11 @@ type InboundHandlerConfig struct {
 
 func (x *InboundHandlerConfig) Reset() {
 	*x = InboundHandlerConfig{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_proxyman_config_proto_msgTypes[4]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *InboundHandlerConfig) String() string {
@@ -371,7 +436,7 @@ func (*InboundHandlerConfig) ProtoMessage() {}
 
 func (x *InboundHandlerConfig) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_config_proto_msgTypes[4]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -415,9 +480,11 @@ type OutboundConfig struct {
 
 func (x *OutboundConfig) Reset() {
 	*x = OutboundConfig{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_proxyman_config_proto_msgTypes[5]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *OutboundConfig) String() string {
@@ -428,7 +495,7 @@ func (*OutboundConfig) ProtoMessage() {}
 
 func (x *OutboundConfig) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_config_proto_msgTypes[5]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -453,14 +520,15 @@ type SenderConfig struct {
 	StreamSettings    *internet.StreamConfig `protobuf:"bytes,2,opt,name=stream_settings,json=streamSettings,proto3" json:"stream_settings,omitempty"`
 	ProxySettings     *internet.ProxyConfig  `protobuf:"bytes,3,opt,name=proxy_settings,json=proxySettings,proto3" json:"proxy_settings,omitempty"`
 	MultiplexSettings *MultiplexingConfig    `protobuf:"bytes,4,opt,name=multiplex_settings,json=multiplexSettings,proto3" json:"multiplex_settings,omitempty"`
-	ViaCidr           string                 `protobuf:"bytes,5,opt,name=via_cidr,json=viaCidr,proto3" json:"via_cidr,omitempty"`
 }
 
 func (x *SenderConfig) Reset() {
 	*x = SenderConfig{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_proxyman_config_proto_msgTypes[6]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *SenderConfig) String() string {
@@ -471,7 +539,7 @@ func (*SenderConfig) ProtoMessage() {}
 
 func (x *SenderConfig) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_config_proto_msgTypes[6]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -514,13 +582,6 @@ func (x *SenderConfig) GetMultiplexSettings() *MultiplexingConfig {
 	return nil
 }
 
-func (x *SenderConfig) GetViaCidr() string {
-	if x != nil {
-		return x.ViaCidr
-	}
-	return ""
-}
-
 type MultiplexingConfig struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -529,18 +590,16 @@ type MultiplexingConfig struct {
 	// Whether or not Mux is enabled.
 	Enabled bool `protobuf:"varint,1,opt,name=enabled,proto3" json:"enabled,omitempty"`
 	// Max number of concurrent connections that one Mux connection can handle.
-	Concurrency int32 `protobuf:"varint,2,opt,name=concurrency,proto3" json:"concurrency,omitempty"`
+	Concurrency uint32 `protobuf:"varint,2,opt,name=concurrency,proto3" json:"concurrency,omitempty"`
-	// Transport XUDP in another Mux.
-	XudpConcurrency int32 `protobuf:"varint,3,opt,name=xudpConcurrency,proto3" json:"xudpConcurrency,omitempty"`
-	// "reject" (default), "allow" or "skip".
-	XudpProxyUDP443 string `protobuf:"bytes,4,opt,name=xudpProxyUDP443,proto3" json:"xudpProxyUDP443,omitempty"`
 }
 
 func (x *MultiplexingConfig) Reset() {
 	*x = MultiplexingConfig{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_proxyman_config_proto_msgTypes[7]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *MultiplexingConfig) String() string {
@@ -551,7 +610,7 @@ func (*MultiplexingConfig) ProtoMessage() {}
 
 func (x *MultiplexingConfig) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_config_proto_msgTypes[7]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -573,27 +632,13 @@ func (x *MultiplexingConfig) GetEnabled() bool {
 	return false
 }
 
-func (x *MultiplexingConfig) GetConcurrency() int32 {
+func (x *MultiplexingConfig) GetConcurrency() uint32 {
 	if x != nil {
 		return x.Concurrency
 	}
 	return 0
 }
 
-func (x *MultiplexingConfig) GetXudpConcurrency() int32 {
-	if x != nil {
-		return x.XudpConcurrency
-	}
-	return 0
-}
-
-func (x *MultiplexingConfig) GetXudpProxyUDP443() string {
-	if x != nil {
-		return x.XudpProxyUDP443
-	}
-	return ""
-}
-
 type AllocationStrategy_AllocationStrategyConcurrency struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -604,9 +649,11 @@ type AllocationStrategy_AllocationStrategyConcurrency struct {
 
 func (x *AllocationStrategy_AllocationStrategyConcurrency) Reset() {
 	*x = AllocationStrategy_AllocationStrategyConcurrency{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_proxyman_config_proto_msgTypes[8]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *AllocationStrategy_AllocationStrategyConcurrency) String() string {
@@ -617,7 +664,7 @@ func (*AllocationStrategy_AllocationStrategyConcurrency) ProtoMessage() {}
 
 func (x *AllocationStrategy_AllocationStrategyConcurrency) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_config_proto_msgTypes[8]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -649,9 +696,11 @@ type AllocationStrategy_AllocationStrategyRefresh struct {
 
 func (x *AllocationStrategy_AllocationStrategyRefresh) Reset() {
 	*x = AllocationStrategy_AllocationStrategyRefresh{}
+	if protoimpl.UnsafeEnabled {
 		mi := &file_app_proxyman_config_proto_msgTypes[9]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
+	}
 }
 
 func (x *AllocationStrategy_AllocationStrategyRefresh) String() string {
@@ -662,7 +711,7 @@ func (*AllocationStrategy_AllocationStrategyRefresh) ProtoMessage() {}
 
 func (x *AllocationStrategy_AllocationStrategyRefresh) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_config_proto_msgTypes[9]
-	if x != nil {
+	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -725,7 +774,7 @@ 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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 	0x61, 0x6e, 0x64, 0x6f, 0x6d, 0x10, 0x01, 0x12, 0x0c, 0x0a, 0x08, 0x45, 0x78, 0x74, 0x65, 0x72,
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+	0x6e, 0x61, 0x6c, 0x10, 0x02, 0x22, 0xad, 0x01, 0x0a, 0x0e, 0x53, 0x6e, 0x69, 0x66, 0x66, 0x69,
 	0x6e, 0x67, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x18, 0x0a, 0x07, 0x65, 0x6e, 0x61, 0x62,
 	0x6c, 0x65, 0x64, 0x18, 0x01, 0x20, 0x01, 0x28, 0x08, 0x52, 0x07, 0x65, 0x6e, 0x61, 0x62, 0x6c,
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@@ -736,87 +785,86 @@ var file_app_proxyman_config_proto_rawDesc = []byte{
 	0x0f, 0x64, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x73, 0x45, 0x78, 0x63, 0x6c, 0x75, 0x64, 0x65, 0x64,
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+	0x63, 0x79, 0x2a, 0x23, 0x0a, 0x0e, 0x4b, 0x6e, 0x6f, 0x77, 0x6e, 0x50, 0x72, 0x6f, 0x74, 0x6f,
-	0x76, 0x69, 0x61, 0x43, 0x69, 0x64, 0x72, 0x22, 0xa4, 0x01, 0x0a, 0x12, 0x4d, 0x75, 0x6c, 0x74,
+	0x63, 0x6f, 0x6c, 0x73, 0x12, 0x08, 0x0a, 0x04, 0x48, 0x54, 0x54, 0x50, 0x10, 0x00, 0x12, 0x07,
-	0x69, 0x70, 0x6c, 0x65, 0x78, 0x69, 0x6e, 0x67, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x18,
+	0x0a, 0x03, 0x54, 0x4c, 0x53, 0x10, 0x01, 0x42, 0x55, 0x0a, 0x15, 0x63, 0x6f, 0x6d, 0x2e, 0x78,
-	0x0a, 0x07, 0x65, 0x6e, 0x61, 0x62, 0x6c, 0x65, 0x64, 0x18, 0x01, 0x20, 0x01, 0x28, 0x08, 0x52,
+	0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e,
-	0x07, 0x65, 0x6e, 0x61, 0x62, 0x6c, 0x65, 0x64, 0x12, 0x20, 0x0a, 0x0b, 0x63, 0x6f, 0x6e, 0x63,
+	0x50, 0x01, 0x5a, 0x26, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78,
-	0x75, 0x72, 0x72, 0x65, 0x6e, 0x63, 0x79, 0x18, 0x02, 0x20, 0x01, 0x28, 0x05, 0x52, 0x0b, 0x63,
+	0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x61, 0x70,
-	0x6f, 0x6e, 0x63, 0x75, 0x72, 0x72, 0x65, 0x6e, 0x63, 0x79, 0x12, 0x28, 0x0a, 0x0f, 0x78, 0x75,
+	0x70, 0x2f, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e, 0xaa, 0x02, 0x11, 0x58, 0x72, 0x61,
-	0x64, 0x70, 0x43, 0x6f, 0x6e, 0x63, 0x75, 0x72, 0x72, 0x65, 0x6e, 0x63, 0x79, 0x18, 0x03, 0x20,
+	0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e, 0x62, 0x06,
-	0x01, 0x28, 0x05, 0x52, 0x0f, 0x78, 0x75, 0x64, 0x70, 0x43, 0x6f, 0x6e, 0x63, 0x75, 0x72, 0x72,
+	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
-	0x65, 0x6e, 0x63, 0x79, 0x12, 0x28, 0x0a, 0x0f, 0x78, 0x75, 0x64, 0x70, 0x50, 0x72, 0x6f, 0x78,
-	0x79, 0x55, 0x44, 0x50, 0x34, 0x34, 0x33, 0x18, 0x04, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0f, 0x78,
-	0x75, 0x64, 0x70, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x55, 0x44, 0x50, 0x34, 0x34, 0x33, 0x42, 0x55,
-	0x0a, 0x15, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x70,
-	0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e, 0x50, 0x01, 0x5a, 0x26, 0x67, 0x69, 0x74, 0x68, 0x75,
-	0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d,
-	0x63, 0x6f, 0x72, 0x65, 0x2f, 0x61, 0x70, 0x70, 0x2f, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61,
-	0x6e, 0xaa, 0x02, 0x11, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x50, 0x72, 0x6f,
-	0x78, 0x79, 0x6d, 0x61, 0x6e, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -831,46 +879,48 @@ func file_app_proxyman_config_proto_rawDescGZIP() []byte {
 	return file_app_proxyman_config_proto_rawDescData
 }
 
-var file_app_proxyman_config_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
+var file_app_proxyman_config_proto_enumTypes = make([]protoimpl.EnumInfo, 2)
 var file_app_proxyman_config_proto_msgTypes = make([]protoimpl.MessageInfo, 10)
-var file_app_proxyman_config_proto_goTypes = []any{
+var file_app_proxyman_config_proto_goTypes = []interface{}{
-	(AllocationStrategy_Type)(0),                             // 0: xray.app.proxyman.AllocationStrategy.Type
+	(KnownProtocols)(0),                                      // 0: xray.app.proxyman.KnownProtocols
-	(*InboundConfig)(nil),                                    // 1: xray.app.proxyman.InboundConfig
+	(AllocationStrategy_Type)(0),                             // 1: xray.app.proxyman.AllocationStrategy.Type
-	(*AllocationStrategy)(nil),                               // 2: xray.app.proxyman.AllocationStrategy
+	(*InboundConfig)(nil),                                    // 2: xray.app.proxyman.InboundConfig
-	(*SniffingConfig)(nil),                                   // 3: xray.app.proxyman.SniffingConfig
+	(*AllocationStrategy)(nil),                               // 3: xray.app.proxyman.AllocationStrategy
-	(*ReceiverConfig)(nil),                                   // 4: xray.app.proxyman.ReceiverConfig
+	(*SniffingConfig)(nil),                                   // 4: xray.app.proxyman.SniffingConfig
-	(*InboundHandlerConfig)(nil),                             // 5: xray.app.proxyman.InboundHandlerConfig
+	(*ReceiverConfig)(nil),                                   // 5: xray.app.proxyman.ReceiverConfig
-	(*OutboundConfig)(nil),                                   // 6: xray.app.proxyman.OutboundConfig
+	(*InboundHandlerConfig)(nil),                             // 6: xray.app.proxyman.InboundHandlerConfig
-	(*SenderConfig)(nil),                                     // 7: xray.app.proxyman.SenderConfig
+	(*OutboundConfig)(nil),                                   // 7: xray.app.proxyman.OutboundConfig
-	(*MultiplexingConfig)(nil),                               // 8: xray.app.proxyman.MultiplexingConfig
+	(*SenderConfig)(nil),                                     // 8: xray.app.proxyman.SenderConfig
-	(*AllocationStrategy_AllocationStrategyConcurrency)(nil), // 9: xray.app.proxyman.AllocationStrategy.AllocationStrategyConcurrency
+	(*MultiplexingConfig)(nil),                               // 9: xray.app.proxyman.MultiplexingConfig
-	(*AllocationStrategy_AllocationStrategyRefresh)(nil),     // 10: xray.app.proxyman.AllocationStrategy.AllocationStrategyRefresh
+	(*AllocationStrategy_AllocationStrategyConcurrency)(nil), // 10: xray.app.proxyman.AllocationStrategy.AllocationStrategyConcurrency
-	(*net.PortList)(nil),                                     // 11: xray.common.net.PortList
+	(*AllocationStrategy_AllocationStrategyRefresh)(nil),     // 11: xray.app.proxyman.AllocationStrategy.AllocationStrategyRefresh
-	(*net.IPOrDomain)(nil),                                   // 12: xray.common.net.IPOrDomain
+	(*net.PortRange)(nil),                                    // 12: xray.common.net.PortRange
-	(*internet.StreamConfig)(nil),                            // 13: xray.transport.internet.StreamConfig
+	(*net.IPOrDomain)(nil),                                   // 13: xray.common.net.IPOrDomain
-	(*serial.TypedMessage)(nil),                              // 14: xray.common.serial.TypedMessage
+	(*internet.StreamConfig)(nil),                            // 14: xray.transport.internet.StreamConfig
-	(*internet.ProxyConfig)(nil),                             // 15: xray.transport.internet.ProxyConfig
+	(*serial.TypedMessage)(nil),                              // 15: xray.common.serial.TypedMessage
+	(*internet.ProxyConfig)(nil),                             // 16: xray.transport.internet.ProxyConfig
 }
 var file_app_proxyman_config_proto_depIdxs = []int32{
-	0,  // 0: xray.app.proxyman.AllocationStrategy.type:type_name -> xray.app.proxyman.AllocationStrategy.Type
+	1,  // 0: xray.app.proxyman.AllocationStrategy.type:type_name -> xray.app.proxyman.AllocationStrategy.Type
-	9,  // 1: xray.app.proxyman.AllocationStrategy.concurrency:type_name -> xray.app.proxyman.AllocationStrategy.AllocationStrategyConcurrency
+	10, // 1: xray.app.proxyman.AllocationStrategy.concurrency:type_name -> xray.app.proxyman.AllocationStrategy.AllocationStrategyConcurrency
-	10, // 2: xray.app.proxyman.AllocationStrategy.refresh:type_name -> xray.app.proxyman.AllocationStrategy.AllocationStrategyRefresh
+	11, // 2: xray.app.proxyman.AllocationStrategy.refresh:type_name -> xray.app.proxyman.AllocationStrategy.AllocationStrategyRefresh
-	11, // 3: xray.app.proxyman.ReceiverConfig.port_list:type_name -> xray.common.net.PortList
+	12, // 3: xray.app.proxyman.ReceiverConfig.port_range:type_name -> xray.common.net.PortRange
-	12, // 4: xray.app.proxyman.ReceiverConfig.listen:type_name -> xray.common.net.IPOrDomain
+	13, // 4: xray.app.proxyman.ReceiverConfig.listen:type_name -> xray.common.net.IPOrDomain
-	2,  // 5: xray.app.proxyman.ReceiverConfig.allocation_strategy:type_name -> xray.app.proxyman.AllocationStrategy
+	3,  // 5: xray.app.proxyman.ReceiverConfig.allocation_strategy:type_name -> xray.app.proxyman.AllocationStrategy
-	13, // 6: xray.app.proxyman.ReceiverConfig.stream_settings:type_name -> xray.transport.internet.StreamConfig
+	14, // 6: xray.app.proxyman.ReceiverConfig.stream_settings:type_name -> xray.transport.internet.StreamConfig
-	3,  // 7: xray.app.proxyman.ReceiverConfig.sniffing_settings:type_name -> xray.app.proxyman.SniffingConfig
+	0,  // 7: xray.app.proxyman.ReceiverConfig.domain_override:type_name -> xray.app.proxyman.KnownProtocols
-	14, // 8: xray.app.proxyman.InboundHandlerConfig.receiver_settings:type_name -> xray.common.serial.TypedMessage
+	4,  // 8: xray.app.proxyman.ReceiverConfig.sniffing_settings:type_name -> xray.app.proxyman.SniffingConfig
-	14, // 9: xray.app.proxyman.InboundHandlerConfig.proxy_settings:type_name -> xray.common.serial.TypedMessage
+	15, // 9: xray.app.proxyman.InboundHandlerConfig.receiver_settings:type_name -> xray.common.serial.TypedMessage
-	12, // 10: xray.app.proxyman.SenderConfig.via:type_name -> xray.common.net.IPOrDomain
+	15, // 10: xray.app.proxyman.InboundHandlerConfig.proxy_settings:type_name -> xray.common.serial.TypedMessage
-	13, // 11: xray.app.proxyman.SenderConfig.stream_settings:type_name -> xray.transport.internet.StreamConfig
+	13, // 11: xray.app.proxyman.SenderConfig.via:type_name -> xray.common.net.IPOrDomain
-	15, // 12: xray.app.proxyman.SenderConfig.proxy_settings:type_name -> xray.transport.internet.ProxyConfig
+	14, // 12: xray.app.proxyman.SenderConfig.stream_settings:type_name -> xray.transport.internet.StreamConfig
-	8,  // 13: xray.app.proxyman.SenderConfig.multiplex_settings:type_name -> xray.app.proxyman.MultiplexingConfig
+	16, // 13: xray.app.proxyman.SenderConfig.proxy_settings:type_name -> xray.transport.internet.ProxyConfig
-	14, // [14:14] is the sub-list for method output_type
+	9,  // 14: xray.app.proxyman.SenderConfig.multiplex_settings:type_name -> xray.app.proxyman.MultiplexingConfig
-	14, // [14:14] is the sub-list for method input_type
+	15, // [15:15] is the sub-list for method output_type
-	14, // [14:14] is the sub-list for extension type_name
+	15, // [15:15] is the sub-list for method input_type
-	14, // [14:14] is the sub-list for extension extendee
+	15, // [15:15] is the sub-list for extension type_name
-	0,  // [0:14] is the sub-list for field type_name
+	15, // [15:15] is the sub-list for extension extendee
+	0,  // [0:15] is the sub-list for field type_name
 }
 
 func init() { file_app_proxyman_config_proto_init() }
@@ -878,12 +928,134 @@ func file_app_proxyman_config_proto_init() {
 	if File_app_proxyman_config_proto != nil {
 		return
 	}
+	if !protoimpl.UnsafeEnabled {
+		file_app_proxyman_config_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*InboundConfig); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_proxyman_config_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*AllocationStrategy); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_proxyman_config_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*SniffingConfig); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_proxyman_config_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*ReceiverConfig); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_proxyman_config_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*InboundHandlerConfig); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_proxyman_config_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*OutboundConfig); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_proxyman_config_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*SenderConfig); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_proxyman_config_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*MultiplexingConfig); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_proxyman_config_proto_msgTypes[8].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*AllocationStrategy_AllocationStrategyConcurrency); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_proxyman_config_proto_msgTypes[9].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*AllocationStrategy_AllocationStrategyRefresh); 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_proxyman_config_proto_rawDesc,
-			NumEnums:      1,
+			NumEnums:      2,
 			NumMessages:   10,
 			NumExtensions: 0,
 			NumServices:   0,

app/proxyman/config.proto

@@ -27,19 +27,28 @@ message AllocationStrategy {
 
   Type type = 1;
 
-  message AllocationStrategyConcurrency { uint32 value = 1; }
+  message AllocationStrategyConcurrency {
+    uint32 value = 1;
+  }
 
   // Number of handlers (ports) running in parallel.
   // Default value is 3 if unset.
   AllocationStrategyConcurrency concurrency = 2;
 
-  message AllocationStrategyRefresh { uint32 value = 1; }
+  message AllocationStrategyRefresh {
+    uint32 value = 1;
+  }
 
   // Number of minutes before a handler is regenerated.
   // Default value is 5 if unset.
   AllocationStrategyRefresh refresh = 3;
 }
 
+enum KnownProtocols {
+  HTTP = 0;
+  TLS = 1;
+}
+
 message SniffingConfig {
   // Whether or not to enable content sniffing on an inbound connection.
   bool enabled = 1;
@@ -50,23 +59,23 @@ message SniffingConfig {
   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
+  // Can be used to support SMTP like protocol where server send the first message.
-  // message.
   bool metadata_only = 4;
-
-  bool route_only = 5;
 }
 
 message ReceiverConfig {
-  // PortList specifies the ports which the Receiver should listen on.
+  // PortRange specifies the ports which the Receiver should listen on.
-  xray.common.net.PortList port_list = 1;
+  xray.common.net.PortRange port_range = 1;
   // Listen specifies the IP address that the Receiver should listen on.
   xray.common.net.IPOrDomain listen = 2;
   AllocationStrategy allocation_strategy = 3;
   xray.transport.internet.StreamConfig stream_settings = 4;
   bool receive_original_destination = 5;
   reserved 6;
-  SniffingConfig sniffing_settings = 7;
+  // Override domains for the given protocol.
+  // Deprecated. Use sniffing_settings.
+  repeated KnownProtocols domain_override = 7 [deprecated = true];
+  SniffingConfig sniffing_settings = 8;
 }
 
 message InboundHandlerConfig {
@@ -83,16 +92,11 @@ message SenderConfig {
   xray.transport.internet.StreamConfig stream_settings = 2;
   xray.transport.internet.ProxyConfig proxy_settings = 3;
   MultiplexingConfig multiplex_settings = 4;
-  string via_cidr = 5;
 }
 
 message MultiplexingConfig {
   // Whether or not Mux is enabled.
   bool enabled = 1;
   // Max number of concurrent connections that one Mux connection can handle.
-  int32 concurrency = 2;
+  uint32 concurrency = 2;
-  // Transport XUDP in another Mux.
-  int32 xudpConcurrency = 3;
-  // "reject" (default), "allow" or "skip".
-  string xudpProxyUDP443 = 4;
 }

app/proxyman/inbound/always.go

@@ -55,7 +55,7 @@ func NewAlwaysOnInboundHandler(ctx context.Context, tag string, receiverConfig *
 	}
 	p, ok := rawProxy.(proxy.Inbound)
 	if !ok {
-		return nil, errors.New("not an inbound proxy.")
+		return nil, newError("not an inbound proxy.")
 	}
 
 	h := &AlwaysOnInboundHandler{
@@ -67,7 +67,7 @@ func NewAlwaysOnInboundHandler(ctx context.Context, tag string, receiverConfig *
 	uplinkCounter, downlinkCounter := getStatCounter(core.MustFromContext(ctx), tag)
 
 	nl := p.Network()
-	pl := receiverConfig.PortList
+	pr := receiverConfig.PortRange
 	address := receiverConfig.Listen.AsAddress()
 	if address == nil {
 		address = net.AnyIP
@@ -75,7 +75,7 @@ func NewAlwaysOnInboundHandler(ctx context.Context, tag string, receiverConfig *
 
 	mss, err := internet.ToMemoryStreamConfig(receiverConfig.StreamSettings)
 	if err != nil {
-		return nil, errors.New("failed to parse stream config").Base(err).AtWarning()
+		return nil, newError("failed to parse stream config").Base(err).AtWarning()
 	}
 
 	if receiverConfig.ReceiveOriginalDestination {
@@ -87,9 +87,9 @@ func NewAlwaysOnInboundHandler(ctx context.Context, tag string, receiverConfig *
 		}
 		mss.SocketSettings.ReceiveOriginalDestAddress = true
 	}
-	if pl == nil {
+	if pr == nil {
 		if net.HasNetwork(nl, net.Network_UNIX) {
-			errors.LogDebug(ctx, "creating unix domain socket worker on ", address)
+			newError("creating unix domain socket worker on ", address).AtDebug().WriteToLog()
 
 			worker := &dsWorker{
 				address:         address,
@@ -105,11 +105,10 @@ func NewAlwaysOnInboundHandler(ctx context.Context, tag string, receiverConfig *
 			h.workers = append(h.workers, worker)
 		}
 	}
-	if pl != nil {
+	if pr != nil {
-		for _, pr := range pl.Range {
 		for port := pr.From; port <= pr.To; port++ {
 			if net.HasNetwork(nl, net.Network_TCP) {
-					errors.LogDebug(ctx, "creating stream worker on ", address, ":", port)
+				newError("creating stream worker on ", address, ":", port).AtDebug().WriteToLog()
 
 				worker := &tcpWorker{
 					address:         address,
@@ -144,7 +143,6 @@ func NewAlwaysOnInboundHandler(ctx context.Context, tag string, receiverConfig *
 			}
 		}
 	}
-	}
 
 	return h, nil
 }
@@ -167,7 +165,7 @@ func (h *AlwaysOnInboundHandler) Close() error {
 	}
 	errs = append(errs, h.mux.Close())
 	if err := errors.Combine(errs...); err != nil {
-		return errors.New("failed to close all resources").Base(err)
+		return newError("failed to close all resources").Base(err)
 	}
 	return nil
 }

app/proxyman/inbound/dynamic.go

@@ -7,7 +7,6 @@ import (
 
 	"github.com/xtls/xray-core/app/proxyman"
 	"github.com/xtls/xray-core/common/dice"
-	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/mux"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/task"
@@ -47,7 +46,7 @@ func NewDynamicInboundHandler(ctx context.Context, tag string, receiverConfig *p
 
 	mss, err := internet.ToMemoryStreamConfig(receiverConfig.StreamSettings)
 	if err != nil {
-		return nil, errors.New("failed to parse stream settings").Base(err).AtWarning()
+		return nil, newError("failed to parse stream settings").Base(err).AtWarning()
 	}
 	if receiverConfig.ReceiveOriginalDestination {
 		if mss.SocketSettings == nil {
@@ -70,18 +69,15 @@ func NewDynamicInboundHandler(ctx context.Context, tag string, receiverConfig *p
 }
 
 func (h *DynamicInboundHandler) allocatePort() net.Port {
-	allPorts := []int32{}
+	from := int(h.receiverConfig.PortRange.From)
-	for _, pr := range h.receiverConfig.PortList.Range {
+	delta := int(h.receiverConfig.PortRange.To) - from + 1
-		for i := pr.From; i <= pr.To; i++ {
+
-			allPorts = append(allPorts, int32(i))
-		}
-	}
 	h.portMutex.Lock()
 	defer h.portMutex.Unlock()
 
 	for {
-		r := dice.Roll(len(allPorts))
+		r := dice.Roll(delta)
-		port := net.Port(allPorts[r])
+		port := net.Port(from + r)
 		_, used := h.portsInUse[port]
 		if !used {
 			h.portsInUse[port] = true
@@ -95,7 +91,7 @@ func (h *DynamicInboundHandler) closeWorkers(workers []worker) {
 	for idx, worker := range workers {
 		ports2Del[idx] = worker.Port()
 		if err := worker.Close(); err != nil {
-			errors.LogInfoInner(h.ctx, err, "failed to close worker")
+			newError("failed to close worker").Base(err).WriteToLog()
 		}
 	}
 
@@ -124,7 +120,7 @@ func (h *DynamicInboundHandler) refresh() error {
 		port := h.allocatePort()
 		rawProxy, err := core.CreateObject(h.v, h.proxyConfig)
 		if err != nil {
-			errors.LogWarningInner(h.ctx, err, "failed to create proxy instance")
+			newError("failed to create proxy instance").Base(err).AtWarning().WriteToLog()
 			continue
 		}
 		p := rawProxy.(proxy.Inbound)
@@ -144,7 +140,7 @@ func (h *DynamicInboundHandler) refresh() error {
 				ctx:             h.ctx,
 			}
 			if err := worker.Start(); err != nil {
-				errors.LogWarningInner(h.ctx, err, "failed to create TCP worker")
+				newError("failed to create TCP worker").Base(err).AtWarning().WriteToLog()
 				continue
 			}
 			workers = append(workers, worker)
@@ -164,7 +160,7 @@ func (h *DynamicInboundHandler) refresh() error {
 				ctx:             h.ctx,
 			}
 			if err := worker.Start(); err != nil {
-				errors.LogWarningInner(h.ctx, err, "failed to create UDP worker")
+				newError("failed to create UDP worker").Base(err).AtWarning().WriteToLog()
 				continue
 			}
 			workers = append(workers, worker)

app/proxyman/inbound/errors.generated.go

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

app/proxyman/inbound/inbound.go

@@ -1,12 +1,13 @@
 package inbound
 
+//go:generate go run github.com/xtls/xray-core/common/errors/errorgen
+
 import (
 	"context"
 	"sync"
 
 	"github.com/xtls/xray-core/app/proxyman"
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/serial"
 	"github.com/xtls/xray-core/common/session"
 	"github.com/xtls/xray-core/core"
@@ -42,7 +43,7 @@ func (m *Manager) AddHandler(ctx context.Context, handler inbound.Handler) error
 	tag := handler.Tag()
 	if len(tag) > 0 {
 		if _, found := m.taggedHandlers[tag]; found {
-			return errors.New("existing tag found: " + tag)
+			return newError("existing tag found: " + tag)
 		}
 		m.taggedHandlers[tag] = handler
 	} else {
@@ -63,7 +64,7 @@ func (m *Manager) GetHandler(ctx context.Context, tag string) (inbound.Handler,
 
 	handler, found := m.taggedHandlers[tag]
 	if !found {
-		return nil, errors.New("handler not found: ", tag)
+		return nil, newError("handler not found: ", tag)
 	}
 	return handler, nil
 }
@@ -79,7 +80,7 @@ func (m *Manager) RemoveHandler(ctx context.Context, tag string) error {
 
 	if handler, found := m.taggedHandlers[tag]; found {
 		if err := handler.Close(); err != nil {
-			errors.LogWarningInner(ctx, err, "failed to close handler ", tag)
+			newError("failed to close handler ", tag).Base(err).AtWarning().WriteToLog(session.ExportIDToError(ctx))
 		}
 		delete(m.taggedHandlers, tag)
 		return nil
@@ -116,20 +117,20 @@ func (m *Manager) Close() error {
 
 	m.running = false
 
-	var errs []interface{}
+	var errors []interface{}
 	for _, handler := range m.taggedHandlers {
 		if err := handler.Close(); err != nil {
-			errs = append(errs, err)
+			errors = append(errors, err)
 		}
 	}
 	for _, handler := range m.untaggedHandler {
 		if err := handler.Close(); err != nil {
-			errs = append(errs, err)
+			errors = append(errors, err)
 		}
 	}
 
-	if len(errs) > 0 {
+	if len(errors) > 0 {
-		return errors.New("failed to close all handlers").Base(errors.New(serial.Concat(errs...)))
+		return newError("failed to close all handlers").Base(newError(serial.Concat(errors...)))
 	}
 
 	return nil
@@ -149,7 +150,7 @@ func NewHandler(ctx context.Context, config *core.InboundHandlerConfig) (inbound
 
 	receiverSettings, ok := rawReceiverSettings.(*proxyman.ReceiverConfig)
 	if !ok {
-		return nil, errors.New("not a ReceiverConfig").AtError()
+		return nil, newError("not a ReceiverConfig").AtError()
 	}
 
 	streamSettings := receiverSettings.StreamSettings
@@ -167,7 +168,7 @@ func NewHandler(ctx context.Context, config *core.InboundHandlerConfig) (inbound
 	if allocStrategy.Type == proxyman.AllocationStrategy_Random {
 		return NewDynamicInboundHandler(ctx, tag, receiverSettings, proxySettings)
 	}
-	return nil, errors.New("unknown allocation strategy: ", receiverSettings.AllocationStrategy.Type).AtError()
+	return nil, newError("unknown allocation strategy: ", receiverSettings.AllocationStrategy.Type).AtError()
 }
 
 func init() {

app/proxyman/inbound/worker.go

@@ -9,8 +9,6 @@ import (
 	"github.com/xtls/xray-core/app/proxyman"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
-	c "github.com/xtls/xray-core/common/ctx"
-	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/serial"
 	"github.com/xtls/xray-core/common/session"
@@ -20,7 +18,6 @@ import (
 	"github.com/xtls/xray-core/features/stats"
 	"github.com/xtls/xray-core/proxy"
 	"github.com/xtls/xray-core/transport/internet"
-	"github.com/xtls/xray-core/transport/internet/stat"
 	"github.com/xtls/xray-core/transport/internet/tcp"
 	"github.com/xtls/xray-core/transport/internet/udp"
 	"github.com/xtls/xray-core/transport/pipe"
@@ -57,19 +54,18 @@ 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 = c.ContextWithID(ctx, sid)
+	ctx = session.ContextWithID(ctx, sid)
 
-	outbounds := []*session.Outbound{{}}
 	if w.recvOrigDest {
 		var dest net.Destination
 		switch getTProxyType(w.stream) {
 		case internet.SocketConfig_Redirect:
 			d, err := tcp.GetOriginalDestination(conn)
 			if err != nil {
-				errors.LogInfoInner(ctx, err, "failed to get original destination")
+				newError("failed to get original destination").Base(err).WriteToLog(session.ExportIDToError(ctx))
 			} else {
 				dest = d
 			}
@@ -77,13 +73,14 @@ func (w *tcpWorker) callback(conn stat.Connection) {
 			dest = net.DestinationFromAddr(conn.LocalAddr())
 		}
 		if dest.IsValid() {
-			outbounds[0].Target = dest
+			ctx = session.ContextWithOutbound(ctx, &session.Outbound{
+				Target: dest,
+			})
 		}
 	}
-	ctx = session.ContextWithOutbounds(ctx, outbounds)
 
 	if w.uplinkCounter != nil || w.downlinkCounter != nil {
-		conn = &stat.CounterConnection{
+		conn = &internet.StatCouterConnection{
 			Connection:   conn,
 			ReadCounter:  w.uplinkCounter,
 			WriteCounter: w.downlinkCounter,
@@ -102,15 +99,16 @@ func (w *tcpWorker) callback(conn stat.Connection) {
 		content.SniffingRequest.OverrideDestinationForProtocol = w.sniffingConfig.DestinationOverride
 		content.SniffingRequest.ExcludeForDomain = w.sniffingConfig.DomainsExcluded
 		content.SniffingRequest.MetadataOnly = w.sniffingConfig.MetadataOnly
-		content.SniffingRequest.RouteOnly = w.sniffingConfig.RouteOnly
 	}
 	ctx = session.ContextWithContent(ctx, content)
 
 	if err := w.proxy.Process(ctx, net.Network_TCP, conn, w.dispatcher); err != nil {
-		errors.LogInfoInner(ctx, err, "connection ends")
+		newError("connection ends").Base(err).WriteToLog(session.ExportIDToError(ctx))
 	}
 	cancel()
-	conn.Close()
+	if err := conn.Close(); err != nil {
+		newError("failed to close connection").Base(err).WriteToLog(session.ExportIDToError(ctx))
+	}
 }
 
 func (w *tcpWorker) Proxy() proxy.Inbound {
@@ -119,28 +117,28 @@ 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 {
-		return errors.New("failed to listen TCP on ", w.port).AtWarning().Base(err)
+		return newError("failed to listen TCP on ", w.port).AtWarning().Base(err)
 	}
 	w.hub = hub
 	return nil
 }
 
 func (w *tcpWorker) Close() error {
-	var errs []interface{}
+	var errors []interface{}
 	if w.hub != nil {
 		if err := common.Close(w.hub); err != nil {
-			errs = append(errs, err)
+			errors = append(errors, err)
 		}
 		if err := common.Close(w.proxy); err != nil {
-			errs = append(errs, err)
+			errors = append(errors, err)
 		}
 	}
-	if len(errs) > 0 {
+	if len(errors) > 0 {
-		return errors.New("failed to close all resources").Base(errors.New(serial.Concat(errs...)))
+		return newError("failed to close all resources").Base(newError(serial.Concat(errors...)))
 	}
 
 	return nil
@@ -160,11 +158,6 @@ type udpConn struct {
 	done             *done.Instance
 	uplink           stats.Counter
 	downlink         stats.Counter
-	inactive         bool
-}
-
-func (c *udpConn) setInactive() {
-	c.inactive = true
 }
 
 func (c *udpConn) updateActivity() {
@@ -308,13 +301,13 @@ func (w *udpWorker) callback(b *buf.Buffer, source net.Destination, originalDest
 		go func() {
 			ctx := w.ctx
 			sid := session.NewID()
-			ctx = c.ContextWithID(ctx, sid)
+			ctx = session.ContextWithID(ctx, sid)
 
-			outbounds := []*session.Outbound{{}}
 			if originalDest.IsValid() {
-				outbounds[0].Target = originalDest
+				ctx = session.ContextWithOutbound(ctx, &session.Outbound{
+					Target: originalDest,
+				})
 			}
-			ctx = session.ContextWithOutbounds(ctx, outbounds)
 			ctx = session.ContextWithInbound(ctx, &session.Inbound{
 				Source:  source,
 				Gateway: net.UDPDestination(w.address, w.port),
@@ -325,18 +318,13 @@ func (w *udpWorker) callback(b *buf.Buffer, source net.Destination, originalDest
 				content.SniffingRequest.Enabled = w.sniffingConfig.Enabled
 				content.SniffingRequest.OverrideDestinationForProtocol = w.sniffingConfig.DestinationOverride
 				content.SniffingRequest.MetadataOnly = w.sniffingConfig.MetadataOnly
-				content.SniffingRequest.RouteOnly = w.sniffingConfig.RouteOnly
 			}
 			ctx = session.ContextWithContent(ctx, content)
 			if err := w.proxy.Process(ctx, net.Network_UDP, conn, w.dispatcher); err != nil {
-				errors.LogInfoInner(ctx, err, "connection ends")
+				newError("connection ends").Base(err).WriteToLog(session.ExportIDToError(ctx))
 			}
 			conn.Close()
-			// conn not removed by checker TODO may be lock worker here is better
-			if !conn.inactive {
-				conn.setInactive()
 			w.removeConn(id)
-			}
 		}()
 	}
 }
@@ -360,15 +348,12 @@ func (w *udpWorker) clean() error {
 	defer w.Unlock()
 
 	if len(w.activeConn) == 0 {
-		return errors.New("no more connections. stopping...")
+		return newError("no more connections. stopping...")
 	}
 
 	for addr, conn := range w.activeConn {
-		if nowSec-atomic.LoadInt64(&conn.lastActivityTime) > 2*60 {
+		if nowSec-atomic.LoadInt64(&conn.lastActivityTime) > 300 {
-			if !conn.inactive {
-				conn.setInactive()
 			delete(w.activeConn, addr)
-			}
 			conn.Close()
 		}
 	}
@@ -404,26 +389,26 @@ func (w *udpWorker) Close() error {
 	w.Lock()
 	defer w.Unlock()
 
-	var errs []interface{}
+	var errors []interface{}
 
 	if w.hub != nil {
 		if err := w.hub.Close(); err != nil {
-			errs = append(errs, err)
+			errors = append(errors, err)
 		}
 	}
 
 	if w.checker != nil {
 		if err := w.checker.Close(); err != nil {
-			errs = append(errs, err)
+			errors = append(errors, err)
 		}
 	}
 
 	if err := common.Close(w.proxy); err != nil {
-		errs = append(errs, err)
+		errors = append(errors, err)
 	}
 
-	if len(errs) > 0 {
+	if len(errors) > 0 {
-		return errors.New("failed to close all resources").Base(errors.New(serial.Concat(errs...)))
+		return newError("failed to close all resources").Base(newError(serial.Concat(errors...)))
 	}
 	return nil
 }
@@ -451,13 +436,13 @@ 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 = c.ContextWithID(ctx, sid)
+	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,
@@ -476,16 +461,15 @@ func (w *dsWorker) callback(conn stat.Connection) {
 		content.SniffingRequest.OverrideDestinationForProtocol = w.sniffingConfig.DestinationOverride
 		content.SniffingRequest.ExcludeForDomain = w.sniffingConfig.DomainsExcluded
 		content.SniffingRequest.MetadataOnly = w.sniffingConfig.MetadataOnly
-		content.SniffingRequest.RouteOnly = w.sniffingConfig.RouteOnly
 	}
 	ctx = session.ContextWithContent(ctx, content)
 
 	if err := w.proxy.Process(ctx, net.Network_UNIX, conn, w.dispatcher); err != nil {
-		errors.LogInfoInner(ctx, err, "connection ends")
+		newError("connection ends").Base(err).WriteToLog(session.ExportIDToError(ctx))
 	}
 	cancel()
 	if err := conn.Close(); err != nil {
-		errors.LogInfoInner(ctx, err, "failed to close connection")
+		newError("failed to close connection").Base(err).WriteToLog(session.ExportIDToError(ctx))
 	}
 }
 
@@ -496,31 +480,30 @@ func (w *dsWorker) Proxy() proxy.Inbound {
 func (w *dsWorker) Port() net.Port {
 	return net.Port(0)
 }
-
 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 {
-		return errors.New("failed to listen Unix Domain Socket on ", w.address).AtWarning().Base(err)
+		return newError("failed to listen Unix Domain Socket on ", w.address).AtWarning().Base(err)
 	}
 	w.hub = hub
 	return nil
 }
 
 func (w *dsWorker) Close() error {
-	var errs []interface{}
+	var errors []interface{}
 	if w.hub != nil {
 		if err := common.Close(w.hub); err != nil {
-			errs = append(errs, err)
+			errors = append(errors, err)
 		}
 		if err := common.Close(w.proxy); err != nil {
-			errs = append(errs, err)
+			errors = append(errors, err)
 		}
 	}
-	if len(errs) > 0 {
+	if len(errors) > 0 {
-		return errors.New("failed to close all resources").Base(errors.New(serial.Concat(errs...)))
+		return newError("failed to close all resources").Base(newError(serial.Concat(errors...)))
 	}
 
 	return nil

app/proxyman/outbound/errors.generated.go

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