Chore: Refactor infra/conf.TestToCidrList() (#4017)

Fixes https://github.com/XTLS/Xray-core/issues/2817

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,87 @@
+name: Bug report
+description: "Submit Xray-core bug"
+body:
+  - type: checkboxes
+    attributes:
+      label: Integrity requirements
+      description: |-
+        Please check all of the following options to prove that you have read and understood the requirements, otherwise this issue will be closed.
+      options:
+        - label: I confirm that I have read the documentation, understand the meaning of all the configuration items I wrote, and did not pile up seemingly useful options or default values.
+          required: true
+        - label: I 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

@@ -0,0 +1,87 @@
+name: bug反馈
+description: "提交 Xray-core bug"
+body:
+  - type: checkboxes
+    attributes:
+      label: 完整性要求
+      description: |-
+        请勾选以下所有选项以证明您已经阅读并理解了以下要求，否则该 issue 将被关闭。
+      options:
+        - label: 我保证阅读了文档，了解所有我编写的配置文件项的含义，而不是大量堆砌看似有用的选项或默认值。
+          required: true
+        - label: 我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

@@ -0,0 +1,4 @@
+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

@@ -2,7 +2,6 @@
   "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" },
@@ -22,6 +21,7 @@
   "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" },

.github/docker/Dockerfile

@@ -0,0 +1,28 @@
+# 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 [ "-confdir", "/etc/xray/" ]
+
+ARG flavor=v2fly
+COPY --from=build --chmod=644 /$flavor /usr/share/xray

.github/docker/files/config.json

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

.github/workflows/docker.yml

@@ -0,0 +1,76 @@
+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

@@ -1,5 +1,11 @@
 name: Build and Release
 
+# NOTE: This Github Actions file depends on the Makefile.
+#       Building the correct package requires the correct binaries generated by the Makefile. To 
+#       ensure the correct output, the Makefile must accept the appropriate input and compile the 
+#       correct file with the correct name. If you need to modify this file, please ensure it won't 
+#       disrupt the Makefile.
+
 on:
   workflow_dispatch:
   release:
@@ -11,27 +17,27 @@ on:
       - "**/*.go"
       - "go.mod"
       - "go.sum"
-      - ".github/workflows/*.yml"
+      - ".github/workflows/release.yml"
   pull_request:
     types: [opened, synchronize, reopened]
     paths:
       - "**/*.go"
       - "go.mod"
       - "go.sum"
-      - ".github/workflows/*.yml"
+      - ".github/workflows/release.yml"
 jobs:
   prepare:
     runs-on: ubuntu-latest
     steps:
       - name: Restore Cache
-        uses: actions/cache/restore@v3
+        uses: actions/cache/restore@v4
         with:
           path: resources
           key: xray-geodat-
 
       - name: Update Geodat
         id: update
-        uses: nick-fields/retry@v2
+        uses: nick-fields/retry@v3
         with:
           timeout_minutes: 60
           retry_wait_seconds: 60
@@ -57,7 +63,7 @@ jobs:
             done
 
       - name: Save Cache
-        uses: actions/cache/save@v3
+        uses: actions/cache/save@v4
         if: ${{ steps.update.outputs.unhit }}
         with:
           path: resources
@@ -70,16 +76,17 @@ jobs:
     strategy:
       matrix:
         # Include amd64 on all platforms.
-        goos: [windows, freebsd, openbsd, linux, dragonfly, darwin]
+        goos: [windows, freebsd, openbsd, linux, darwin]
         goarch: [amd64, 386]
+        gotoolchain: [""]
+        patch-assetname: [""]
+
         exclude:
-          # Exclude i386 on darwin and dragonfly.
-          - goarch: 386
-            goos: dragonfly
+          # Exclude i386 on darwin
           - goarch: 386
             goos: darwin
         include:
-          # BEIGIN MacOS ARM64
+          # BEGIN MacOS ARM64
           - goos: darwin
             goarch: arm64
           # END MacOS ARM64
@@ -105,12 +112,14 @@ jobs:
             goarch: arm
             goarm: 7
           # BEGIN Other architectures
-          # BEGIN riscv64 & ARM64
+          # BEGIN riscv64 & ARM64 & LOONG64
           - goos: linux
             goarch: arm64
           - goos: linux
             goarch: riscv64
-          # END riscv64 & ARM64
+          - goos: linux
+            goarch: loong64
+          # END riscv64 & ARM64 & LOONG64
           # BEGIN MIPS
           - goos: linux
             goarch: mips64
@@ -146,6 +155,16 @@ 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
@@ -156,56 +175,32 @@ jobs:
       CGO_ENABLED: 0
     steps:
       - name: Checkout codebase
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Show workflow information
         run: |
-          export _NAME=$(jq ".[\"$GOOS-$GOARCH$GOARM$GOMIPS\"].friendlyName" -r < .github/build/friendly-filenames.json)
+          _NAME=${{ matrix.patch-assetname }}
+          [ -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: $_NAME"
           echo "ASSET_NAME=$_NAME" >> $GITHUB_ENV
 
       - name: Set up Go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v5
         with:
-          go-version: '1.20'
+          go-version: ${{ matrix.gotoolchain || '1.23' }}
           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
-          go build -v -o build_assets/xray -trimpath -ldflags "-s -w -buildid=" ./main
-
-      - name: Build background Xray on Windows 
-        if: matrix.goos == 'windows'
-        run: |
-          go build -v -o build_assets/wxray.exe -trimpath -ldflags "-s -w -H windowsgui -buildid=" ./main
-    
-      - name: Build Mips softfloat Xray
-        if: matrix.goarch == 'mips' || matrix.goarch == 'mipsle'
-        run: |
-          GOMIPS=softfloat go build -v -o build_assets/xray_softfloat -trimpath -ldflags "-s -w -buildid=" ./main
-
-      - name: Rename Windows Xray
-        if: matrix.goos == 'windows'
-        run: |
-          cd ./build_assets || exit 1
-          mv xray xray.exe
+          make
+          find . -maxdepth 1 -type f -regex './\(wxray\|xray\|xray_softfloat\)\(\|.exe\)' -exec mv {} ./build_assets/ \;
 
       - name: Restore Cache
-        uses: actions/cache/restore@v3
+        uses: actions/cache/restore@v4
         with:
           path: resources
           key: xray-geodat-
@@ -217,6 +212,7 @@ jobs:
           cp ${GITHUB_WORKSPACE}/LICENSE ./build_assets/LICENSE
 
       - name: Create ZIP archive
+        if: github.event_name == 'release'
         shell: bash
         run: |
           pushd build_assets || exit 1
@@ -235,7 +231,7 @@ jobs:
           mv build_assets Xray-${{ env.ASSET_NAME }}
 
       - name: Upload files to Artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: Xray-${{ env.ASSET_NAME }}
           path: |

.github/workflows/test.yml

@@ -27,15 +27,15 @@ jobs:
       matrix:
         os: [windows-latest, ubuntu-latest, macos-latest]
     steps:
-      - name: Set up Go
-        uses: actions/setup-go@v3
-        with:
-          go-version: '1.20'
-          check-latest: true
       - name: Checkout codebase
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.23'
+          check-latest: true
       - name: Restore Cache
-        uses: actions/cache/restore@v3
+        uses: actions/cache/restore@v4
         with:
           path: resources
           key: xray-geodat-

.gitignore

@@ -19,6 +19,7 @@
 *.zip
 *.tar.gz
 xray
+xray_softfloat
 mockgen
 vprotogen
 !infra/vprotogen/
@@ -26,3 +27,7 @@ errorgen
 !common/errors/errorgen/
 *.dat
 .vscode
+/build_assets
+
+# Output from dlv test
+**/debug.*

Makefile

@@ -0,0 +1,37 @@
+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

@@ -1,92 +1,20 @@
 # Project X
 
-[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).
+[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).
+
+[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)
 
-## Installation
+## Documentation
 
-- 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)
-- 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)
-
-## Contributing
-[Code Of Conduct](https://github.com/XTLS/Xray-core/blob/main/CODE_OF_CONDUCT.md)
-
-## 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) (This project had been archived and currently inactive)
-  - [Netch (NetFilter & TUN/TAP)](https://github.com/NetchX/Netch) (This project had been archived and currently inactive)
-- Android
-  - [v2rayNG](https://github.com/2dust/v2rayNG)
-  - [Kitsunebi](https://github.com/rurirei/Kitsunebi/tree/release_xtls)
-- iOS & macOS (with M1 chip)
-  - [Shadowrocket](https://apps.apple.com/app/shadowrocket/id932747118)
-  - [Stash](https://apps.apple.com/app/stash/id1596063349)
-- macOS (Intel chip & M1 chip)
-  - [Qv2ray](https://github.com/Qv2ray/Qv2ray) (This project had been archived and currently inactive)
-  - [V2RayXS](https://github.com/tzmax/V2RayXS)
-
-## Credits
-
-This repo relies on the following third-party projects:
-
-- Special thanks:
-  - [v2fly/v2ray-core](https://github.com/v2fly/v2ray-core)
-- In production:
-  - [ghodss/yaml](https://github.com/ghodss/yaml)
-  - [gorilla/websocket](https://github.com/gorilla/websocket)
-  - [quic-go/quic-go](https://github.com/quic-go/quic-go)
-  - [pelletier/go-toml](https://github.com/pelletier/go-toml)
-  - [pires/go-proxyproto](https://github.com/pires/go-proxyproto)
-  - [refraction-networking/utls](https://github.com/refraction-networking/utls)
-  - [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)
-  - [stretchr/testify](https://github.com/stretchr/testify)
-  - [h12w/socks](https://github.com/h12w/socks)
-
-## Compilation
-
-### Windows
-
-```bash
-go build -o xray.exe -trimpath -ldflags "-s -w -buildid=" ./main
-```
-
-### Linux / macOS
-
-```bash
-go build -o xray -trimpath -ldflags "-s -w -buildid=" ./main
-```
+[Project X Official Website](https://xtls.github.io)
 
 ## Telegram
 
@@ -94,6 +22,124 @@ go build -o xray -trimpath -ldflags "-s -w -buildid=" ./main
 
 [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

@@ -1,13 +1,12 @@
 package commander
 
-//go:generate go run github.com/xtls/xray-core/common/errors/errorgen
-
 import (
 	"context"
 	"net"
 	"sync"
 
 	"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"
@@ -21,12 +20,14 @@ type Commander struct {
 	services []Service
 	ohm      outbound.Manager
 	tag      string
+	listen   string
 }
 
 // NewCommander creates a new Commander based on the given config.
 func NewCommander(ctx context.Context, config *Config) (*Commander, error) {
 	c := &Commander{
 		tag:    config.Tag,
+		listen: config.Listen,
 	}
 
 	common.Must(core.RequireFeatures(ctx, func(om outbound.Manager) {
@@ -44,7 +45,7 @@ func NewCommander(ctx context.Context, config *Config) (*Commander, error) {
 		}
 		service, ok := rawService.(Service)
 		if !ok {
-			return nil, newError("not a Service.")
+			return nil, errors.New("not a Service.")
 		}
 		c.services = append(c.services, service)
 	}
@@ -66,19 +67,32 @@ 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 func() {
-		if err := c.server.Serve(listener); err != nil {
-			newError("failed to start grpc server").Base(err).AtError().WriteToLog()
-		}
-	}()
+	go listen(listener)
 
 	if err := c.ohm.RemoveHandler(context.Background(), c.tag); err != nil {
-		newError("failed to remove existing handler").WriteToLog()
+		errors.LogInfoInner(context.Background(), err, "failed to remove existing handler")
 	}
 
 	return c.ohm.AddHandler(context.Background(), &Outbound{

app/commander/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.28.1
-// 	protoc        v3.21.12
+// 	protoc-gen-go v1.35.1
+// 	protoc        v5.28.2
 // source: app/commander/config.proto
 
 package commander
@@ -29,6 +29,8 @@ type Config struct {
 
 	// Tag of the outbound handler that handles grpc connections.
 	Tag string `protobuf:"bytes,1,opt,name=tag,proto3" json:"tag,omitempty"`
+	// Network address of commander grpc service.
+	Listen string `protobuf:"bytes,3,opt,name=listen,proto3" json:"listen,omitempty"`
 	// Services that supported by this server. All services must implement Service
 	// interface.
 	Service []*serial.TypedMessage `protobuf:"bytes,2,rep,name=service,proto3" json:"service,omitempty"`
@@ -36,11 +38,9 @@ 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 +51,7 @@ func (*Config) ProtoMessage() {}
 
 func (x *Config) ProtoReflect() protoreflect.Message {
 	mi := &file_app_commander_config_proto_msgTypes[0]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -73,6 +73,13 @@ func (x *Config) GetTag() string {
 	return ""
 }
 
+func (x *Config) GetListen() string {
+	if x != nil {
+		return x.Listen
+	}
+	return ""
+}
+
 func (x *Config) GetService() []*serial.TypedMessage {
 	if x != nil {
 		return x.Service
@@ -89,11 +96,9 @@ 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 {
@@ -104,7 +109,7 @@ func (*ReflectionConfig) ProtoMessage() {}
 
 func (x *ReflectionConfig) ProtoReflect() protoreflect.Message {
 	mi := &file_app_commander_config_proto_msgTypes[1]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -127,20 +132,21 @@ var file_app_commander_config_proto_rawDesc = []byte{
 	0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x65, 0x72,
 	0x1a, 0x21, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2f, 0x73, 0x65, 0x72, 0x69, 0x61, 0x6c, 0x2f,
 	0x74, 0x79, 0x70, 0x65, 0x64, 0x5f, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x2e, 0x70, 0x72,
-	0x6f, 0x74, 0x6f, 0x22, 0x56, 0x0a, 0x06, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x10, 0x0a,
+	0x6f, 0x74, 0x6f, 0x22, 0x6e, 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,
-	0x3a, 0x0a, 0x07, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x18, 0x02, 0x20, 0x03, 0x28, 0x0b,
-	0x32, 0x20, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x73,
-	0x65, 0x72, 0x69, 0x61, 0x6c, 0x2e, 0x54, 0x79, 0x70, 0x65, 0x64, 0x4d, 0x65, 0x73, 0x73, 0x61,
-	0x67, 0x65, 0x52, 0x07, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x22, 0x12, 0x0a, 0x10, 0x52,
-	0x65, 0x66, 0x6c, 0x65, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x42,
-	0x58, 0x0a, 0x16, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e,
-	0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x65, 0x72, 0x50, 0x01, 0x5a, 0x27, 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, 0x63, 0x6f, 0x6d, 0x6d, 0x61,
-	0x6e, 0x64, 0x65, 0x72, 0xaa, 0x02, 0x12, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e,
-	0x43, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x65, 0x72, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f,
-	0x33,
+	0x16, 0x0a, 0x06, 0x6c, 0x69, 0x73, 0x74, 0x65, 0x6e, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09, 0x52,
+	0x06, 0x6c, 0x69, 0x73, 0x74, 0x65, 0x6e, 0x12, 0x3a, 0x0a, 0x07, 0x73, 0x65, 0x72, 0x76, 0x69,
+	0x63, 0x65, 0x18, 0x02, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x20, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e,
+	0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x73, 0x65, 0x72, 0x69, 0x61, 0x6c, 0x2e, 0x54, 0x79,
+	0x70, 0x65, 0x64, 0x4d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x52, 0x07, 0x73, 0x65, 0x72, 0x76,
+	0x69, 0x63, 0x65, 0x22, 0x12, 0x0a, 0x10, 0x52, 0x65, 0x66, 0x6c, 0x65, 0x63, 0x74, 0x69, 0x6f,
+	0x6e, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x42, 0x58, 0x0a, 0x16, 0x63, 0x6f, 0x6d, 0x2e, 0x78,
+	0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x65,
+	0x72, 0x50, 0x01, 0x5a, 0x27, 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, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x65, 0x72, 0xaa, 0x02, 0x12, 0x58,
+	0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x43, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x65,
+	0x72, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -156,7 +162,7 @@ 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 = []interface{}{
+var file_app_commander_config_proto_goTypes = []any{
 	(*Config)(nil),              // 0: xray.app.commander.Config
 	(*ReflectionConfig)(nil),    // 1: xray.app.commander.ReflectionConfig
 	(*serial.TypedMessage)(nil), // 2: xray.common.serial.TypedMessage
@@ -175,32 +181,6 @@ 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

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

app/commander/errors.generated.go

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

@@ -5,6 +5,7 @@ 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"
@@ -31,7 +32,7 @@ func (l *OutboundListener) add(conn net.Conn) {
 func (l *OutboundListener) Accept() (net.Conn, error) {
 	select {
 	case <-l.done.Wait():
-		return nil, newError("listen closed")
+		return nil, errors.New("listen closed")
 	case c := <-l.buffer:
 		return c, nil
 	}

app/dispatcher/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.28.1
-// 	protoc        v3.21.12
+// 	protoc-gen-go v1.35.1
+// 	protoc        v5.28.2
 // source: app/dispatcher/config.proto
 
 package dispatcher
@@ -28,11 +28,9 @@ 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 {
@@ -43,7 +41,7 @@ func (*SessionConfig) ProtoMessage() {}
 
 func (x *SessionConfig) ProtoReflect() protoreflect.Message {
 	mi := &file_app_dispatcher_config_proto_msgTypes[0]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -68,11 +66,9 @@ 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 {
@@ -83,7 +79,7 @@ func (*Config) ProtoMessage() {}
 
 func (x *Config) ProtoReflect() protoreflect.Message {
 	mi := &file_app_dispatcher_config_proto_msgTypes[1]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -139,7 +135,7 @@ 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 = []interface{}{
+var file_app_dispatcher_config_proto_goTypes = []any{
 	(*SessionConfig)(nil), // 0: xray.app.dispatcher.SessionConfig
 	(*Config)(nil),        // 1: xray.app.dispatcher.Config
 }
@@ -157,32 +153,6 @@ 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

@@ -1,16 +1,15 @@
 package dispatcher
 
-//go:generate go run github.com/xtls/xray-core/common/errors/errorgen
-
 import (
 	"context"
-	"fmt"
+	"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"
@@ -26,7 +25,7 @@ import (
 	"github.com/xtls/xray-core/transport/pipe"
 )
 
-var errSniffingTimeout = newError("timeout on sniffing")
+var errSniffingTimeout = errors.New("timeout on sniffing")
 
 type cachedReader struct {
 	sync.Mutex
@@ -40,8 +39,14 @@ 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()
-	rawBytes := b.Extend(buf.Size)
+	} else {
+		b.Release()
+		*b = *buf.NewWithSize(cacheLen)
+	}
+	rawBytes := b.Extend(cacheLen)
 	n := r.cache.Copy(rawBytes)
 	b.Resize(0, int32(n))
 	r.Unlock()
@@ -135,77 +140,10 @@ func (*DefaultDispatcher) Start() error {
 // Close implements common.Closable.
 func (*DefaultDispatcher) Close() error { return nil }
 
-func (d *DefaultDispatcher) getLink(ctx context.Context, network net.Network, sniffing session.SniffingRequest) (*transport.Link, *transport.Link) {
-	downOpt := pipe.OptionsFromContext(ctx)
-	upOpt := downOpt
-
-	if network == net.Network_UDP {
-		var ip2domain *sync.Map // net.IP.String() => domain, this map is used by server side when client turn on fakedns
-		// Client will send domain address in the buffer.UDP.Address, server record all possible target IP addrs.
-		// When target replies, server will restore the domain and send back to client.
-		// Note: this map is not global but per connection context
-		upOpt = append(upOpt, pipe.OnTransmission(func(mb buf.MultiBuffer) buf.MultiBuffer {
-			for i, buffer := range mb {
-				if buffer.UDP == nil {
-					continue
-				}
-				addr := buffer.UDP.Address
-				if addr.Family().IsIP() {
-					if fkr0, ok := d.fdns.(dns.FakeDNSEngineRev0); ok && fkr0.IsIPInIPPool(addr) && sniffing.Enabled {
-						domain := fkr0.GetDomainFromFakeDNS(addr)
-						if len(domain) > 0 {
-							buffer.UDP.Address = net.DomainAddress(domain)
-							newError("[fakedns client] override with domain: ", domain, " for xUDP buffer at ", i).WriteToLog(session.ExportIDToError(ctx))
-						} else {
-							newError("[fakedns client] failed to find domain! :", addr.String(), " for xUDP buffer at ", i).AtWarning().WriteToLog(session.ExportIDToError(ctx))
-						}
-					}
-				} else {
-					if ip2domain == nil {
-						ip2domain = new(sync.Map)
-						newError("[fakedns client] create a new map").WriteToLog(session.ExportIDToError(ctx))
-					}
-					domain := addr.Domain()
-					ips, err := d.dns.LookupIP(domain, dns.IPOption{true, true, false})
-					if err == nil {
-						for _, ip := range ips {
-							ip2domain.Store(ip.String(), domain)
-						}
-						newError("[fakedns client] candidate ip: "+fmt.Sprintf("%v", ips), " for xUDP buffer at ", i).WriteToLog(session.ExportIDToError(ctx))
-					} else {
-						newError("[fakedns client] failed to look up IP for ", domain, " for xUDP buffer at ", i).Base(err).WriteToLog(session.ExportIDToError(ctx))
-					}
-				}
-			}
-			return mb
-		}))
-		downOpt = append(downOpt, pipe.OnTransmission(func(mb buf.MultiBuffer) buf.MultiBuffer {
-			for i, buffer := range mb {
-				if buffer.UDP == nil {
-					continue
-				}
-				addr := buffer.UDP.Address
-				if addr.Family().IsIP() {
-					if ip2domain == nil {
-						continue
-					}
-					if domain, found := ip2domain.Load(addr.IP().String()); found {
-						buffer.UDP.Address = net.DomainAddress(domain.(string))
-						newError("[fakedns client] restore domain: ", domain.(string), " for xUDP buffer at ", i).WriteToLog(session.ExportIDToError(ctx))
-					}
-				} else {
-					if fkr0, ok := d.fdns.(dns.FakeDNSEngineRev0); ok {
-						fakeIp := fkr0.GetFakeIPForDomain(addr.Domain())
-						buffer.UDP.Address = fakeIp[0]
-						newError("[fakedns client] restore FakeIP: ", buffer.UDP, fmt.Sprintf("%v", fakeIp), " for xUDP buffer at ", i).WriteToLog(session.ExportIDToError(ctx))
-					}
-				}
-			}
-			return mb
-		}))
-	}
-	uplinkReader, uplinkWriter := pipe.New(upOpt...)
-	downlinkReader, downlinkWriter := pipe.New(downOpt...)
+func (d *DefaultDispatcher) getLink(ctx context.Context) (*transport.Link, *transport.Link) {
+	opt := pipe.OptionsFromContext(ctx)
+	uplinkReader, uplinkWriter := pipe.New(opt...)
+	downlinkReader, downlinkWriter := pipe.New(opt...)
 
 	inboundLink := &transport.Link{
 		Reader: downlinkReader,
@@ -243,6 +181,18 @@ func (d *DefaultDispatcher) getLink(ctx context.Context, network net.Network, sn
 				}
 			}
 		}
+
+		if p.Stats.UserOnline {
+			name := "user>>>" + user.Email + ">>>online"
+			if om, _ := stats.GetOrRegisterOnlineMap(d.stats, name); om != nil {
+				sessionInbounds := session.InboundFromContext(ctx)
+				userIP := sessionInbounds.Source.Address.String()
+				om.AddIP(userIP)
+				// log Online user with ips
+				// errors.LogDebug(ctx, "user>>>" + user.Email + ">>>online", om.Count(), om.List())
+
+			}
+		}
 	}
 
 	return inboundLink, outboundLink
@@ -254,21 +204,33 @@ func (d *DefaultDispatcher) shouldOverride(ctx context.Context, result SniffResu
 		return false
 	}
 	for _, d := range request.ExcludeForDomain {
+		if strings.HasPrefix(d, "regexp:") {
+			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
 			}
 		}
+	}
 	protocolString := result.Protocol()
 	if resComp, ok := result.(SnifferResultComposite); ok {
 		protocolString = resComp.ProtocolForDomainResult()
 	}
 	for _, p := range request.OverrideDestinationForProtocol {
-		if strings.HasPrefix(protocolString, p) {
+		if strings.HasPrefix(protocolString, p) || strings.HasPrefix(p, protocolString) {
 			return true
 		}
 		if fkr0, ok := d.fdns.(dns.FakeDNSEngineRev0); ok && protocolString != "bittorrent" && p == "fakedns" &&
-			destination.Address.Family().IsIP() && fkr0.IsIPInIPPool(destination.Address) {
-			newError("Using sniffer ", protocolString, " since the fake DNS missed").WriteToLog(session.ExportIDToError(ctx))
+			fkr0.IsIPInIPPool(destination.Address) {
+			errors.LogInfo(ctx, "Using sniffer ", protocolString, " since the fake DNS missed")
 			return true
 		}
 		if resultSubset, ok := result.(SnifferIsProtoSubsetOf); ok {
@@ -286,10 +248,14 @@ func (d *DefaultDispatcher) Dispatch(ctx context.Context, destination net.Destin
 	if !destination.IsValid() {
 		panic("Dispatcher: Invalid destination.")
 	}
-	ob := &session.Outbound{
-		Target: destination,
+	outbounds := session.OutboundsFromContext(ctx)
+	if len(outbounds) == 0 {
+		outbounds = []*session.Outbound{{}}
+		ctx = session.ContextWithOutbounds(ctx, outbounds)
 	}
-	ctx = session.ContextWithOutbound(ctx, ob)
+	ob := outbounds[len(outbounds)-1]
+	ob.OriginalTarget = destination
+	ob.Target = destination
 	content := session.ContentFromContext(ctx)
 	if content == nil {
 		content = new(session.Content)
@@ -297,7 +263,7 @@ func (d *DefaultDispatcher) Dispatch(ctx context.Context, destination net.Destin
 	}
 
 	sniffingRequest := content.SniffingRequest
-	inbound, outbound := d.getLink(ctx, destination.Network, sniffingRequest)
+	inbound, outbound := d.getLink(ctx)
 	if !sniffingRequest.Enabled {
 		go d.routedDispatch(ctx, outbound, destination)
 	} else {
@@ -312,9 +278,17 @@ func (d *DefaultDispatcher) Dispatch(ctx context.Context, destination net.Destin
 			}
 			if err == nil && d.shouldOverride(ctx, result, sniffingRequest, destination) {
 				domain := result.Domain()
-				newError("sniffed domain: ", domain).WriteToLog(session.ExportIDToError(ctx))
+				errors.LogInfo(ctx, "sniffed domain: ", domain)
 				destination.Address = net.ParseAddress(domain)
-				if sniffingRequest.RouteOnly && result.Protocol() != "fakedns" {
+				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
@@ -329,12 +303,16 @@ func (d *DefaultDispatcher) Dispatch(ctx context.Context, destination net.Destin
 // DispatchLink implements routing.Dispatcher.
 func (d *DefaultDispatcher) DispatchLink(ctx context.Context, destination net.Destination, outbound *transport.Link) error {
 	if !destination.IsValid() {
-		return newError("Dispatcher: Invalid destination.")
+		return errors.New("Dispatcher: Invalid destination.")
 	}
-	ob := &session.Outbound{
-		Target: destination,
+	outbounds := session.OutboundsFromContext(ctx)
+	if len(outbounds) == 0 {
+		outbounds = []*session.Outbound{{}}
+		ctx = session.ContextWithOutbounds(ctx, outbounds)
 	}
-	ctx = session.ContextWithOutbound(ctx, ob)
+	ob := outbounds[len(outbounds)-1]
+	ob.OriginalTarget = destination
+	ob.Target = destination
 	content := session.ContentFromContext(ctx)
 	if content == nil {
 		content = new(session.Content)
@@ -342,9 +320,8 @@ func (d *DefaultDispatcher) DispatchLink(ctx context.Context, destination net.De
 	}
 	sniffingRequest := content.SniffingRequest
 	if !sniffingRequest.Enabled {
-		go d.routedDispatch(ctx, outbound, destination)
+		d.routedDispatch(ctx, outbound, destination)
 	} else {
-		go func() {
 		cReader := &cachedReader{
 			reader: outbound.Reader.(*pipe.Reader),
 		}
@@ -355,16 +332,23 @@ func (d *DefaultDispatcher) DispatchLink(ctx context.Context, destination net.De
 		}
 		if err == nil && d.shouldOverride(ctx, result, sniffingRequest, destination) {
 			domain := result.Domain()
-				newError("sniffed domain: ", domain).WriteToLog(session.ExportIDToError(ctx))
+			errors.LogInfo(ctx, "sniffed domain: ", domain)
 			destination.Address = net.ParseAddress(domain)
-				if sniffingRequest.RouteOnly && result.Protocol() != "fakedns" {
+			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
@@ -415,9 +399,9 @@ func sniffer(ctx context.Context, cReader *cachedReader, metadataOnly bool, netw
 	}
 	return contentResult, contentErr
 }
-
 func (d *DefaultDispatcher) routedDispatch(ctx context.Context, link *transport.Link, destination net.Destination) {
-	ob := session.OutboundFromContext(ctx)
+	outbounds := session.OutboundsFromContext(ctx)
+	ob := outbounds[len(outbounds)-1]
 	if hosts, ok := d.dns.(dns.HostsLookup); ok && destination.Address.Family().IsDomain() {
 		proxied := hosts.LookupHosts(ob.Target.String())
 		if proxied != nil {
@@ -440,10 +424,10 @@ func (d *DefaultDispatcher) routedDispatch(ctx context.Context, link *transport.
 		ctx = session.SetForcedOutboundTagToContext(ctx, "")
 		if h := d.ohm.GetHandler(forcedOutboundTag); h != nil {
 			isPickRoute = 1
-			newError("taking platform initialized detour [", forcedOutboundTag, "] for [", destination, "]").WriteToLog(session.ExportIDToError(ctx))
+			errors.LogInfo(ctx, "taking platform initialized detour [", forcedOutboundTag, "] for [", destination, "]")
 			handler = h
 		} else {
-			newError("non existing tag for platform initialized detour: ", forcedOutboundTag).AtError().WriteToLog(session.ExportIDToError(ctx))
+			errors.LogError(ctx, "non existing tag for platform initialized detour: ", forcedOutboundTag)
 			common.Close(link.Writer)
 			common.Interrupt(link.Reader)
 			return
@@ -453,13 +437,17 @@ func (d *DefaultDispatcher) routedDispatch(ctx context.Context, link *transport.
 			outTag := route.GetOutboundTag()
 			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 {
-				newError("non existing outTag: ", outTag).AtWarning().WriteToLog(session.ExportIDToError(ctx))
+				errors.LogWarning(ctx, "non existing outTag: ", outTag)
 			}
 		} else {
-			newError("default route for ", destination).WriteToLog(session.ExportIDToError(ctx))
+			errors.LogInfo(ctx, "default route for ", destination)
 		}
 	}
 
@@ -468,12 +456,13 @@ func (d *DefaultDispatcher) routedDispatch(ctx context.Context, link *transport.
 	}
 
 	if handler == nil {
-		newError("default outbound handler not exist").WriteToLog(session.ExportIDToError(ctx))
+		errors.LogInfo(ctx, "default outbound handler not exist")
 		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 == "" {

app/dispatcher/dispatcher.go

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

app/dispatcher/errors.generated.go

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

@@ -5,6 +5,7 @@ import (
 	"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"
@@ -22,15 +23,16 @@ func newFakeDNSSniffer(ctx context.Context) (protocolSnifferWithMetadata, error)
 	}
 
 	if fakeDNSEngine == nil {
-		errNotInit := newError("FakeDNSEngine is not initialized, but such a sniffer is used").AtError()
+		errNotInit := errors.New("FakeDNSEngine is not initialized, but such a sniffer is used").AtError()
 		return protocolSnifferWithMetadata{}, errNotInit
 	}
 	return protocolSnifferWithMetadata{protocolSniffer: func(ctx context.Context, bytes []byte) (SniffResult, error) {
-		Target := session.OutboundFromContext(ctx).Target
-		if Target.Network == net.Network_TCP || Target.Network == net.Network_UDP {
-			domainFromFakeDNS := fakeDNSEngine.GetDomainFromFakeDNS(Target.Address)
+		outbounds := session.OutboundsFromContext(ctx)
+		ob := outbounds[len(outbounds)-1]
+		if ob.Target.Network == net.Network_TCP || ob.Target.Network == net.Network_UDP {
+			domainFromFakeDNS := fakeDNSEngine.GetDomainFromFakeDNS(ob.Target.Address)
 			if domainFromFakeDNS != "" {
-				newError("fake dns got domain: ", domainFromFakeDNS, " for ip: ", Target.Address.String()).WriteToLog(session.ExportIDToError(ctx))
+				errors.LogInfo(ctx, "fake dns got domain: ", domainFromFakeDNS, " for ip: ", ob.Target.Address.String())
 				return &fakeDNSSniffResult{domainName: domainFromFakeDNS}, nil
 			}
 		}
@@ -38,7 +40,7 @@ func newFakeDNSSniffer(ctx context.Context) (protocolSnifferWithMetadata, error)
 		if ipAddressInRangeValueI := ctx.Value(ipAddressInRange); ipAddressInRangeValueI != nil {
 			ipAddressInRangeValue := ipAddressInRangeValueI.(*ipAddressInRangeOpt)
 			if fkr0, ok := fakeDNSEngine.(dns.FakeDNSEngineRev0); ok {
-				inPool := fkr0.IsIPInIPPool(Target.Address)
+				inPool := fkr0.IsIPInIPPool(ob.Target.Address)
 				ipAddressInRangeValue.addressInRange = &inPool
 			}
 		}
@@ -108,10 +110,10 @@ func newFakeDNSThenOthers(ctx context.Context, fakeDNSSniffer protocolSnifferWit
 					}
 					return nil, common.ErrNoClue
 				}
-				newError("ip address not in fake dns range, return as is").AtDebug().WriteToLog()
+				errors.LogDebug(ctx, "ip address not in fake dns range, return as is")
 				return nil, common.ErrNoClue
 			}
-			newError("fake dns sniffer did not set address in range option, assume false.").AtWarning().WriteToLog()
+			errors.LogWarning(ctx, "fake dns sniffer did not set address in range option, assume false.")
 			return nil, common.ErrNoClue
 		},
 		metadataSniffer: false,

app/dispatcher/sniffer.go

@@ -4,6 +4,7 @@ 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"
@@ -34,7 +35,7 @@ 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) }, false, net.Network_TCP},
+			{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 tls.SniffTLS(b) }, false, net.Network_TCP},
 			{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 quic.SniffQUIC(b) }, false, net.Network_UDP},
@@ -52,7 +53,7 @@ func NewSniffer(ctx context.Context) *Sniffer {
 	return ret
 }
 
-var errUnknownContent = newError("unknown content")
+var errUnknownContent = errors.New("unknown content")
 
 func (s *Sniffer) Sniff(c context.Context, payload []byte, network net.Network) (SniffResult, error) {
 	var pendingSniffer []protocolSnifferWithMetadata

app/dns/config.go

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

app/dns/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.28.1
-// 	protoc        v3.21.12
+// 	protoc-gen-go v1.35.1
+// 	protoc        v5.28.2
 // source: app/dns/config.proto
 
 package dns
@@ -134,15 +134,14 @@ 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 {
@@ -153,7 +152,7 @@ func (*NameServer) ProtoMessage() {}
 
 func (x *NameServer) ProtoReflect() protoreflect.Message {
 	mi := &file_app_dns_config_proto_msgTypes[0]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -210,24 +209,21 @@ 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"`
@@ -243,11 +239,9 @@ type Config struct {
 
 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 {
@@ -258,7 +252,7 @@ func (*Config) ProtoMessage() {}
 
 func (x *Config) ProtoReflect() protoreflect.Message {
 	mi := &file_app_dns_config_proto_msgTypes[1]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -273,14 +267,6 @@ 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
@@ -288,14 +274,6 @@ 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
@@ -356,11 +334,9 @@ 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 {
@@ -371,7 +347,7 @@ func (*NameServer_PriorityDomain) ProtoMessage() {}
 
 func (x *NameServer_PriorityDomain) ProtoReflect() protoreflect.Message {
 	mi := &file_app_dns_config_proto_msgTypes[2]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -411,11 +387,9 @@ 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 {
@@ -426,7 +400,7 @@ func (*NameServer_OriginalRule) ProtoMessage() {}
 
 func (x *NameServer_OriginalRule) ProtoReflect() protoreflect.Message {
 	mi := &file_app_dns_config_proto_msgTypes[3]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -470,11 +444,9 @@ type Config_HostMapping struct {
 
 func (x *Config_HostMapping) Reset() {
 	*x = Config_HostMapping{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_app_dns_config_proto_msgTypes[5]
+	mi := &file_app_dns_config_proto_msgTypes[4]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
-	}
 }
 
 func (x *Config_HostMapping) String() string {
@@ -484,8 +456,8 @@ func (x *Config_HostMapping) String() string {
 func (*Config_HostMapping) ProtoMessage() {}
 
 func (x *Config_HostMapping) ProtoReflect() protoreflect.Message {
-	mi := &file_app_dns_config_proto_msgTypes[5]
-	if protoimpl.UnsafeEnabled && x != nil {
+	mi := &file_app_dns_config_proto_msgTypes[4]
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -497,7 +469,7 @@ 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, 1}
+	return file_app_dns_config_proto_rawDescGZIP(), []int{1, 0}
 }
 
 func (x *Config_HostMapping) GetType() DomainMatchingType {
@@ -533,103 +505,92 @@ var File_app_dns_config_proto protoreflect.FileDescriptor
 var file_app_dns_config_proto_rawDesc = []byte{
 	0x0a, 0x14, 0x61, 0x70, 0x70, 0x2f, 0x64, 0x6e, 0x73, 0x2f, 0x63, 0x6f, 0x6e, 0x66, 0x69, 0x67,
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+	0x6d, 0x61, 0x69, 0x6e, 0x18, 0x04, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0d, 0x70, 0x72, 0x6f, 0x78,
+	0x69, 0x65, 0x64, 0x44, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x4a, 0x04, 0x08, 0x07, 0x10, 0x08, 0x2a,
+	0x45, 0x0a, 0x12, 0x44, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x4d, 0x61, 0x74, 0x63, 0x68, 0x69, 0x6e,
+	0x67, 0x54, 0x79, 0x70, 0x65, 0x12, 0x08, 0x0a, 0x04, 0x46, 0x75, 0x6c, 0x6c, 0x10, 0x00, 0x12,
+	0x0d, 0x0a, 0x09, 0x53, 0x75, 0x62, 0x64, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x10, 0x01, 0x12, 0x0b,
+	0x0a, 0x07, 0x4b, 0x65, 0x79, 0x77, 0x6f, 0x72, 0x64, 0x10, 0x02, 0x12, 0x09, 0x0a, 0x05, 0x52,
+	0x65, 0x67, 0x65, 0x78, 0x10, 0x03, 0x2a, 0x35, 0x0a, 0x0d, 0x51, 0x75, 0x65, 0x72, 0x79, 0x53,
+	0x74, 0x72, 0x61, 0x74, 0x65, 0x67, 0x79, 0x12, 0x0a, 0x0a, 0x06, 0x55, 0x53, 0x45, 0x5f, 0x49,
+	0x50, 0x10, 0x00, 0x12, 0x0b, 0x0a, 0x07, 0x55, 0x53, 0x45, 0x5f, 0x49, 0x50, 0x34, 0x10, 0x01,
+	0x12, 0x0b, 0x0a, 0x07, 0x55, 0x53, 0x45, 0x5f, 0x49, 0x50, 0x36, 0x10, 0x02, 0x42, 0x46, 0x0a,
+	0x10, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x64, 0x6e,
+	0x73, 0x50, 0x01, 0x5a, 0x21, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f,
+	0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x61,
+	0x70, 0x70, 0x2f, 0x64, 0x6e, 0x73, 0xaa, 0x02, 0x0c, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x41, 0x70,
+	0x70, 0x2e, 0x44, 0x6e, 0x73, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -645,38 +606,34 @@ func file_app_dns_config_proto_rawDescGZIP() []byte {
 }
 
 var file_app_dns_config_proto_enumTypes = make([]protoimpl.EnumInfo, 2)
-var file_app_dns_config_proto_msgTypes = make([]protoimpl.MessageInfo, 6)
-var file_app_dns_config_proto_goTypes = []interface{}{
+var file_app_dns_config_proto_msgTypes = make([]protoimpl.MessageInfo, 5)
+var file_app_dns_config_proto_goTypes = []any{
 	(DomainMatchingType)(0),           // 0: xray.app.dns.DomainMatchingType
 	(QueryStrategy)(0),                // 1: xray.app.dns.QueryStrategy
 	(*NameServer)(nil),                // 2: xray.app.dns.NameServer
 	(*Config)(nil),                    // 3: xray.app.dns.Config
 	(*NameServer_PriorityDomain)(nil), // 4: xray.app.dns.NameServer.PriorityDomain
 	(*NameServer_OriginalRule)(nil),   // 5: xray.app.dns.NameServer.OriginalRule
-	nil,                               // 6: xray.app.dns.Config.HostsEntry
-	(*Config_HostMapping)(nil),        // 7: xray.app.dns.Config.HostMapping
-	(*net.Endpoint)(nil),              // 8: xray.common.net.Endpoint
-	(*router.GeoIP)(nil),              // 9: xray.app.router.GeoIP
-	(*net.IPOrDomain)(nil),            // 10: xray.common.net.IPOrDomain
+	(*Config_HostMapping)(nil),        // 6: xray.app.dns.Config.HostMapping
+	(*net.Endpoint)(nil),              // 7: xray.common.net.Endpoint
+	(*router.GeoIP)(nil),              // 8: xray.app.router.GeoIP
 }
 var file_app_dns_config_proto_depIdxs = []int32{
-	8,  // 0: xray.app.dns.NameServer.address:type_name -> xray.common.net.Endpoint
+	7,  // 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
-	9,  // 2: xray.app.dns.NameServer.geoip:type_name -> xray.app.router.GeoIP
+	8,  // 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
-	8,  // 4: xray.app.dns.Config.NameServers:type_name -> xray.common.net.Endpoint
+	1,  // 4: xray.app.dns.NameServer.query_strategy:type_name -> xray.app.dns.QueryStrategy
 	2,  // 5: xray.app.dns.Config.name_server:type_name -> xray.app.dns.NameServer
-	6,  // 6: xray.app.dns.Config.Hosts:type_name -> xray.app.dns.Config.HostsEntry
-	7,  // 7: xray.app.dns.Config.static_hosts:type_name -> xray.app.dns.Config.HostMapping
-	1,  // 8: xray.app.dns.Config.query_strategy:type_name -> xray.app.dns.QueryStrategy
-	0,  // 9: xray.app.dns.NameServer.PriorityDomain.type:type_name -> xray.app.dns.DomainMatchingType
-	10, // 10: xray.app.dns.Config.HostsEntry.value:type_name -> xray.common.net.IPOrDomain
-	0,  // 11: xray.app.dns.Config.HostMapping.type:type_name -> xray.app.dns.DomainMatchingType
-	12, // [12:12] is the sub-list for method output_type
-	12, // [12:12] is the sub-list for method input_type
-	12, // [12:12] is the sub-list for extension type_name
-	12, // [12:12] is the sub-list for extension extendee
-	0,  // [0:12] is the sub-list for field type_name
+	6,  // 6: xray.app.dns.Config.static_hosts:type_name -> xray.app.dns.Config.HostMapping
+	1,  // 7: xray.app.dns.Config.query_strategy:type_name -> xray.app.dns.QueryStrategy
+	0,  // 8: xray.app.dns.NameServer.PriorityDomain.type:type_name -> xray.app.dns.DomainMatchingType
+	0,  // 9: xray.app.dns.Config.HostMapping.type:type_name -> xray.app.dns.DomainMatchingType
+	10, // [10:10] is the sub-list for method output_type
+	10, // [10:10] is the sub-list for method input_type
+	10, // [10:10] is the sub-list for extension type_name
+	10, // [10:10] is the sub-list for extension extendee
+	0,  // [0:10] is the sub-list for field type_name
 }
 
 func init() { file_app_dns_config_proto_init() }
@@ -684,75 +641,13 @@ 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,
-			NumMessages:   6,
+			NumMessages:   5,
 			NumExtensions: 0,
 			NumServices:   0,
 		},

app/dns/config.proto

@@ -6,7 +6,6 @@ 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";
 
@@ -28,6 +27,7 @@ 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 {
@@ -44,18 +44,10 @@ enum QueryStrategy {
 }
 
 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;

app/dns/dns.go

@@ -1,8 +1,6 @@
 // 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"
@@ -15,7 +13,6 @@ 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"
 )
 
@@ -54,7 +51,7 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 	case 0, net.IPv4len, net.IPv6len:
 		clientIP = net.IP(config.ClientIp)
 	default:
-		return nil, newError("unexpected client IP length ", len(config.ClientIp))
+		return nil, errors.New("unexpected client IP length ", len(config.ClientIp))
 	}
 
 	var ipOption *dns.IPOption
@@ -79,9 +76,9 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 		}
 	}
 
-	hosts, err := NewStaticHosts(config.StaticHosts, config.Hosts)
+	hosts, err := NewStaticHosts(config.StaticHosts)
 	if err != nil {
-		return nil, newError("failed to create hosts").Base(err)
+		return nil, errors.New("failed to create hosts").Base(err)
 	}
 
 	clients := []*Client{}
@@ -95,15 +92,6 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 	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 {
@@ -122,7 +110,7 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 		}
 		client, err := NewClient(ctx, ns, myClientIP, geoipContainer, &matcherInfos, updateDomain)
 		if err != nil {
-			return nil, newError("failed to create client").Base(err)
+			return nil, errors.New("failed to create client").Base(err)
 		}
 		clients = append(clients, client)
 	}
@@ -170,7 +158,7 @@ func (s *DNS) IsOwnLink(ctx context.Context) bool {
 // LookupIP implements dns.Client.
 func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, error) {
 	if domain == "" {
-		return nil, newError("empty domain name")
+		return nil, errors.New("empty domain name")
 	}
 
 	option.IPv4Enable = option.IPv4Enable && s.ipOption.IPv4Enable
@@ -181,9 +169,7 @@ func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, error) {
 	}
 
 	// Normalize the FQDN form query
-	if strings.HasSuffix(domain, ".") {
-		domain = domain[:len(domain)-1]
-	}
+	domain = strings.TrimSuffix(domain, ".")
 
 	// Static host lookup
 	switch addrs := s.hosts.Lookup(domain, option); {
@@ -192,10 +178,10 @@ 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
-		newError("domain replaced: ", domain, " -> ", addrs[0].Domain()).WriteToLog()
+		errors.LogInfo(s.ctx, "domain replaced: ", domain, " -> ", addrs[0].Domain())
 		domain = addrs[0].Domain()
 	default: // Successfully found ip records in static host
-		newError("returning ", len(addrs), " IP(s) for domain ", domain, " -> ", addrs).WriteToLog()
+		errors.LogInfo(s.ctx, "returning ", len(addrs), " IP(s) for domain ", domain, " -> ", addrs)
 		return toNetIP(addrs)
 	}
 
@@ -204,7 +190,7 @@ func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, error) {
 	ctx := session.ContextWithInbound(s.ctx, &session.Inbound{Tag: s.tag})
 	for _, client := range s.sortClients(domain) {
 		if !option.FakeEnable && strings.EqualFold(client.Name(), "FakeDNS") {
-			newError("skip DNS resolution for domain ", domain, " at server ", client.Name()).AtDebug().WriteToLog()
+			errors.LogDebug(s.ctx, "skip DNS resolution for domain ", domain, " at server ", client.Name())
 			continue
 		}
 		ips, err := client.QueryIP(ctx, domain, option, s.disableCache)
@@ -212,15 +198,16 @@ func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, error) {
 			return ips, nil
 		}
 		if err != nil {
-			newError("failed to lookup ip for domain ", domain, " at server ", client.Name()).Base(err).WriteToLog()
+			errors.LogInfoInner(s.ctx, err, "failed to lookup ip for domain ", domain, " at server ", client.Name())
 			errs = append(errs, err)
 		}
-		if err != context.Canceled && err != context.DeadlineExceeded && err != errExpectedIPNonMatch {
+		// 5 for RcodeRefused in miekg/dns, hardcode to reduce binary size
+		if err != context.Canceled && err != context.DeadlineExceeded && err != errExpectedIPNonMatch && err != dns.ErrEmptyResponse && dns.RCodeFromError(err) != 5 {
 			return nil, err
 		}
 	}
 
-	return nil, newError("returning nil for domain ", domain).Base(errors.Combine(errs...))
+	return nil, errors.New("returning nil for domain ", domain).Base(errors.Combine(errs...))
 }
 
 // LookupHosts implements dns.HostsLookup.
@@ -232,7 +219,7 @@ func (s *DNS) LookupHosts(domain string) *net.Address {
 	// Normalize the FQDN form query
 	addrs := s.hosts.Lookup(domain, *s.ipOption)
 	if len(addrs) > 0 {
-		newError("domain replaced: ", domain, " -> ", addrs[0].String()).AtInfo().WriteToLog()
+		errors.LogInfo(s.ctx, "domain replaced: ", domain, " -> ", addrs[0].String())
 		return &addrs[0]
 	}
 
@@ -290,16 +277,16 @@ func (s *DNS) sortClients(domain string) []*Client {
 	}
 
 	if len(domainRules) > 0 {
-		newError("domain ", domain, " matches following rules: ", domainRules).AtDebug().WriteToLog()
+		errors.LogDebug(s.ctx, "domain ", domain, " matches following rules: ", domainRules)
 	}
 	if len(clientNames) > 0 {
-		newError("domain ", domain, " will use DNS in order: ", clientNames).AtDebug().WriteToLog()
+		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())
-		newError("domain ", domain, " will use the first DNS: ", clientNames).AtDebug().WriteToLog()
+		errors.LogDebug(s.ctx, "domain ", domain, " will use the first DNS: ", clientNames)
 	}
 
 	return clients

app/dns/dns_test.go

@@ -13,6 +13,7 @@ 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"
@@ -123,8 +124,9 @@ func TestUDPServerSubnet(t *testing.T) {
 	config := &core.Config{
 		App: []*serial.TypedMessage{
 			serial.ToTypedMessage(&Config{
-				NameServers: []*net.Endpoint{
+				NameServer: []*NameServer{
 					{
+						Address: &net.Endpoint{
 							Network: net.Network_UDP,
 							Address: &net.IPOrDomain{
 								Address: &net.IPOrDomain_Ip{
@@ -134,6 +136,7 @@ func TestUDPServerSubnet(t *testing.T) {
 							Port: uint32(port),
 						},
 					},
+				},
 				ClientIp: []byte{7, 8, 9, 10},
 			}),
 			serial.ToTypedMessage(&dispatcher.Config{}),
@@ -182,8 +185,9 @@ func TestUDPServer(t *testing.T) {
 	config := &core.Config{
 		App: []*serial.TypedMessage{
 			serial.ToTypedMessage(&Config{
-				NameServers: []*net.Endpoint{
+				NameServer: []*NameServer{
 					{
+						Address: &net.Endpoint{
 							Network: net.Network_UDP,
 							Address: &net.IPOrDomain{
 								Address: &net.IPOrDomain_Ip{
@@ -193,6 +197,7 @@ func TestUDPServer(t *testing.T) {
 							Port: uint32(port),
 						},
 					},
+				},
 			}),
 			serial.ToTypedMessage(&dispatcher.Config{}),
 			serial.ToTypedMessage(&proxyman.OutboundConfig{}),
@@ -260,7 +265,7 @@ func TestUDPServer(t *testing.T) {
 			IPv6Enable: true,
 			FakeEnable: false,
 		})
-		if err != feature_dns.ErrEmptyResponse {
+		if !errors.AllEqual(feature_dns.ErrEmptyResponse, errors.Cause(err)) {
 			t.Fatal("error: ", err)
 		}
 		if len(ips) != 0 {
@@ -302,8 +307,9 @@ func TestPrioritizedDomain(t *testing.T) {
 	config := &core.Config{
 		App: []*serial.TypedMessage{
 			serial.ToTypedMessage(&Config{
-				NameServers: []*net.Endpoint{
+				NameServer: []*NameServer{
 					{
+						Address: &net.Endpoint{
 							Network: net.Network_UDP,
 							Address: &net.IPOrDomain{
 								Address: &net.IPOrDomain_Ip{
@@ -313,7 +319,6 @@ func TestPrioritizedDomain(t *testing.T) {
 							Port: 9999, /* unreachable */
 						},
 					},
-				NameServer: []*NameServer{
 					{
 						Address: &net.Endpoint{
 							Network: net.Network_UDP,
@@ -388,8 +393,9 @@ func TestUDPServerIPv6(t *testing.T) {
 	config := &core.Config{
 		App: []*serial.TypedMessage{
 			serial.ToTypedMessage(&Config{
-				NameServers: []*net.Endpoint{
+				NameServer: []*NameServer{
 					{
+						Address: &net.Endpoint{
 							Network: net.Network_UDP,
 							Address: &net.IPOrDomain{
 								Address: &net.IPOrDomain_Ip{
@@ -399,6 +405,7 @@ func TestUDPServerIPv6(t *testing.T) {
 							Port: uint32(port),
 						},
 					},
+				},
 			}),
 			serial.ToTypedMessage(&dispatcher.Config{}),
 			serial.ToTypedMessage(&proxyman.OutboundConfig{}),
@@ -447,8 +454,9 @@ func TestStaticHostDomain(t *testing.T) {
 	config := &core.Config{
 		App: []*serial.TypedMessage{
 			serial.ToTypedMessage(&Config{
-				NameServers: []*net.Endpoint{
+				NameServer: []*NameServer{
 					{
+						Address: &net.Endpoint{
 							Network: net.Network_UDP,
 							Address: &net.IPOrDomain{
 								Address: &net.IPOrDomain_Ip{
@@ -458,6 +466,7 @@ func TestStaticHostDomain(t *testing.T) {
 							Port: uint32(port),
 						},
 					},
+				},
 				StaticHosts: []*Config_HostMapping{
 					{
 						Type:          DomainMatchingType_Full,
@@ -630,8 +639,9 @@ func TestLocalDomain(t *testing.T) {
 	config := &core.Config{
 		App: []*serial.TypedMessage{
 			serial.ToTypedMessage(&Config{
-				NameServers: []*net.Endpoint{
+				NameServer: []*NameServer{
 					{
+						Address: &net.Endpoint{
 							Network: net.Network_UDP,
 							Address: &net.IPOrDomain{
 								Address: &net.IPOrDomain_Ip{
@@ -641,7 +651,6 @@ func TestLocalDomain(t *testing.T) {
 							Port: 9999, /* unreachable */
 						},
 					},
-				NameServer: []*NameServer{
 					{
 						Address: &net.Endpoint{
 							Network: net.Network_UDP,
@@ -858,8 +867,9 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 	config := &core.Config{
 		App: []*serial.TypedMessage{
 			serial.ToTypedMessage(&Config{
-				NameServers: []*net.Endpoint{
+				NameServer: []*NameServer{
 					{
+						Address: &net.Endpoint{
 							Network: net.Network_UDP,
 							Address: &net.IPOrDomain{
 								Address: &net.IPOrDomain_Ip{
@@ -869,7 +879,6 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 							Port: 9999, /* unreachable */
 						},
 					},
-				NameServer: []*NameServer{
 					{
 						Address: &net.Endpoint{
 							Network: net.Network_UDP,

app/dns/dnscommon.go

@@ -171,10 +171,10 @@ func parseResponse(payload []byte) (*IPRecord, error) {
 	var parser dnsmessage.Parser
 	h, err := parser.Start(payload)
 	if err != nil {
-		return nil, newError("failed to parse DNS response").Base(err).AtWarning()
+		return nil, errors.New("failed to parse DNS response").Base(err).AtWarning()
 	}
 	if err := parser.SkipAllQuestions(); err != nil {
-		return nil, newError("failed to skip questions in DNS response").Base(err).AtWarning()
+		return nil, errors.New("failed to skip questions in DNS response").Base(err).AtWarning()
 	}
 
 	now := time.Now()
@@ -189,7 +189,7 @@ L:
 		ah, err := parser.AnswerHeader()
 		if err != nil {
 			if err != dnsmessage.ErrSectionDone {
-				newError("failed to parse answer section for domain: ", ah.Name.String()).Base(err).WriteToLog()
+				errors.LogInfoInner(context.Background(), err, "failed to parse answer section for domain: ", ah.Name.String())
 			}
 			break
 		}
@@ -207,20 +207,20 @@ L:
 		case dnsmessage.TypeA:
 			ans, err := parser.AResource()
 			if err != nil {
-				newError("failed to parse A record for domain: ", ah.Name).Base(err).WriteToLog()
+				errors.LogInfoInner(context.Background(), err, "failed to parse A record for domain: ", ah.Name)
 				break L
 			}
 			ipRecord.IP = append(ipRecord.IP, net.IPAddress(ans.A[:]))
 		case dnsmessage.TypeAAAA:
 			ans, err := parser.AAAAResource()
 			if err != nil {
-				newError("failed to parse AAAA record for domain: ", ah.Name).Base(err).WriteToLog()
+				errors.LogInfoInner(context.Background(), err, "failed to parse AAAA record for domain: ", ah.Name)
 				break L
 			}
 			ipRecord.IP = append(ipRecord.IP, net.IPAddress(ans.AAAA[:]))
 		default:
 			if err := parser.SkipAnswer(); err != nil {
-				newError("failed to skip answer").Base(err).WriteToLog()
+				errors.LogInfoInner(context.Background(), err, "failed to skip answer")
 				break L
 			}
 			continue

app/dns/dnscommon_test.go

@@ -88,7 +88,7 @@ func Test_parseResponse(t *testing.T) {
 				got.Expire = time.Time{}
 			}
 			if cmp.Diff(got, tt.want) != "" {
-				t.Errorf(cmp.Diff(got, tt.want))
+				t.Error(cmp.Diff(got, tt.want))
 				// t.Errorf("handleResponse() = %#v, want %#v", got, tt.want)
 			}
 		})

app/dns/errors.generated.go

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

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

app/dns/fakedns/fake.go

@@ -10,6 +10,7 @@ import (
 
 	"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"
 )
@@ -45,7 +46,7 @@ func (fkdns *Holder) Start() error {
 	if fkdns.config != nil && fkdns.config.IpPool != "" && fkdns.config.LruSize != 0 {
 		return fkdns.initializeFromConfig()
 	}
-	return newError("invalid fakeDNS setting")
+	return errors.New("invalid fakeDNS setting")
 }
 
 func (fkdns *Holder) Close() error {
@@ -60,7 +61,7 @@ func NewFakeDNSHolder() (*Holder, error) {
 	var err error
 
 	if fkdns, err = NewFakeDNSHolderConfigOnly(nil); err != nil {
-		return nil, newError("Unable to create Fake Dns Engine").Base(err).AtError()
+		return nil, errors.New("Unable to create Fake Dns Engine").Base(err).AtError()
 	}
 	err = fkdns.initialize(dns.FakeIPv4Pool, 65535)
 	if err != nil {
@@ -82,13 +83,13 @@ func (fkdns *Holder) initialize(ipPoolCidr string, lruSize int) error {
 	var err error
 
 	if _, ipRange, err = gonet.ParseCIDR(ipPoolCidr); err != nil {
-		return newError("Unable to parse CIDR for Fake DNS IP assignment").Base(err).AtError()
+		return errors.New("Unable to parse CIDR for Fake DNS IP assignment").Base(err).AtError()
 	}
 
 	ones, bits := ipRange.Mask.Size()
 	rooms := bits - ones
 	if math.Log2(float64(lruSize)) >= float64(rooms) {
-		return newError("LRU size is bigger than subnet size").AtError()
+		return errors.New("LRU size is bigger than subnet size").AtError()
 	}
 	fkdns.domainToIP = cache.NewLru(lruSize)
 	fkdns.ipRange = ipRange
@@ -137,7 +138,7 @@ func (fkdns *Holder) GetDomainFromFakeDNS(ip net.Address) string {
 	if k, ok := fkdns.domainToIP.GetKeyFromValue(ip); ok {
 		return k.(string)
 	}
-	newError("A fake ip request to ", ip, ", however there is no matching domain name in fake DNS").AtInfo().WriteToLog()
+	errors.LogInfo(context.Background(), "A fake ip request to ", ip, ", however there is no matching domain name in fake DNS")
 	return ""
 }
 
@@ -192,10 +193,10 @@ 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 newError("Cannot start all fake dns pools").Base(err)
+				return errors.New("Cannot start all fake dns pools").Base(err)
 			}
 		} else {
-			return newError("invalid fakeDNS setting")
+			return errors.New("invalid fakeDNS setting")
 		}
 	}
 	return nil
@@ -204,7 +205,7 @@ func (h *HolderMulti) Start() error {
 func (h *HolderMulti) Close() error {
 	for _, v := range h.holders {
 		if err := v.Close(); err != nil {
-			return newError("Cannot close all fake dns pools").Base(err)
+			return errors.New("Cannot close all fake dns pools").Base(err)
 		}
 	}
 	return nil

app/dns/fakedns/fakedns.go

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

app/dns/fakedns/fakedns.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.28.1
-// 	protoc        v3.21.12
+// 	protoc-gen-go v1.35.1
+// 	protoc        v5.28.2
 // source: app/dns/fakedns/fakedns.proto
 
 package fakedns
@@ -31,11 +31,9 @@ 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 {
@@ -46,7 +44,7 @@ func (*FakeDnsPool) ProtoMessage() {}
 
 func (x *FakeDnsPool) ProtoReflect() protoreflect.Message {
 	mi := &file_app_dns_fakedns_fakedns_proto_msgTypes[0]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -85,11 +83,9 @@ type FakeDnsPoolMulti struct {
 
 func (x *FakeDnsPoolMulti) Reset() {
 	*x = FakeDnsPoolMulti{}
-	if protoimpl.UnsafeEnabled {
 	mi := &file_app_dns_fakedns_fakedns_proto_msgTypes[1]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
-	}
 }
 
 func (x *FakeDnsPoolMulti) String() string {
@@ -100,7 +96,7 @@ func (*FakeDnsPoolMulti) ProtoMessage() {}
 
 func (x *FakeDnsPoolMulti) ProtoReflect() protoreflect.Message {
 	mi := &file_app_dns_fakedns_fakedns_proto_msgTypes[1]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -159,7 +155,7 @@ func file_app_dns_fakedns_fakedns_proto_rawDescGZIP() []byte {
 }
 
 var file_app_dns_fakedns_fakedns_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
-var file_app_dns_fakedns_fakedns_proto_goTypes = []interface{}{
+var file_app_dns_fakedns_fakedns_proto_goTypes = []any{
 	(*FakeDnsPool)(nil),      // 0: xray.app.dns.fakedns.FakeDnsPool
 	(*FakeDnsPoolMulti)(nil), // 1: xray.app.dns.fakedns.FakeDnsPoolMulti
 }
@@ -177,32 +173,6 @@ 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
-			}
-		}
-		file_app_dns_fakedns_fakedns_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*FakeDnsPoolMulti); 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/dns/hosts.go

@@ -1,10 +1,11 @@
 package dns
 
 import (
-	"github.com/xtls/xray-core/common"
+	"context"
+
+	"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"
 )
 
@@ -15,34 +16,17 @@ type StaticHosts struct {
 }
 
 // NewStaticHosts creates a new StaticHosts instance.
-func NewStaticHosts(hosts []*Config_HostMapping, legacy map[string]*net.IPOrDomain) (*StaticHosts, error) {
+func NewStaticHosts(hosts []*Config_HostMapping) (*StaticHosts, error) {
 	g := new(strmatcher.MatcherGroup)
 	sh := &StaticHosts{
-		ips:      make([][]net.Address, len(hosts)+len(legacy)+16),
+		ips:      make([][]net.Address, len(hosts)+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, newError("failed to create domain matcher").Base(err)
+			return nil, errors.New("failed to create domain matcher").Base(err)
 		}
 		id := g.Add(matcher)
 		ips := make([]net.Address, 0, len(mapping.Ip)+1)
@@ -53,12 +37,12 @@ func NewStaticHosts(hosts []*Config_HostMapping, legacy map[string]*net.IPOrDoma
 			for _, ip := range mapping.Ip {
 				addr := net.IPAddress(ip)
 				if addr == nil {
-					return nil, newError("invalid IP address in static hosts: ", ip).AtWarning()
+					return nil, errors.New("invalid IP address in static hosts: ", ip).AtWarning()
 				}
 				ips = append(ips, addr)
 			}
 		default:
-			return nil, newError("neither IP address nor proxied domain specified for domain: ", mapping.Domain).AtWarning()
+			return nil, errors.New("neither IP address nor proxied domain specified for domain: ", mapping.Domain).AtWarning()
 		}
 
 		sh.ips[id] = ips
@@ -90,7 +74,7 @@ func (h *StaticHosts) lookup(domain string, option dns.IPOption, maxDepth int) [
 	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
-		newError("found replaced domain: ", domain, " -> ", addrs[0].Domain(), ". Try to unwrap it").AtDebug().WriteToLog()
+		errors.LogDebug(context.Background(), "found replaced domain: ", domain, " -> ", addrs[0].Domain(), ". Try to unwrap it")
 		if maxDepth > 0 {
 			unwrapped := h.lookup(addrs[0].Domain(), option, maxDepth-1)
 			if unwrapped != nil {

app/dns/hosts_test.go

@@ -50,7 +50,7 @@ func TestStaticHosts(t *testing.T) {
 		},
 	}
 
-	hosts, err := NewStaticHosts(pb, nil)
+	hosts, err := NewStaticHosts(pb)
 	common.Must(err)
 
 	{

app/dns/nameserver.go

@@ -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) (Server, error) {
+func NewServer(dest net.Destination, dispatcher routing.Dispatcher, queryStrategy QueryStrategy) (Server, error) {
 	if address := dest.Address; address.Family().IsDomain() {
 		u, err := url.Parse(address.Domain())
 		if err != nil {
@@ -45,15 +45,15 @@ func NewServer(dest net.Destination, dispatcher routing.Dispatcher) (Server, err
 		case strings.EqualFold(u.String(), "localhost"):
 			return NewLocalNameServer(), nil
 		case strings.EqualFold(u.Scheme, "https"): // DOH Remote mode
-			return NewDoHNameServer(u, dispatcher)
+			return NewDoHNameServer(u, dispatcher, queryStrategy)
 		case strings.EqualFold(u.Scheme, "https+local"): // DOH Local mode
-			return NewDoHLocalNameServer(u), nil
+			return NewDoHLocalNameServer(u, queryStrategy), nil
 		case strings.EqualFold(u.Scheme, "quic+local"): // DNS-over-QUIC Local mode
-			return NewQUICNameServer(u)
+			return NewQUICNameServer(u, queryStrategy)
 		case strings.EqualFold(u.Scheme, "tcp"): // DNS-over-TCP Remote mode
-			return NewTCPNameServer(u, dispatcher)
+			return NewTCPNameServer(u, dispatcher, queryStrategy)
 		case strings.EqualFold(u.Scheme, "tcp+local"): // DNS-over-TCP Local mode
-			return NewTCPLocalNameServer(u)
+			return NewTCPLocalNameServer(u, queryStrategy)
 		case strings.EqualFold(u.String(), "fakedns"):
 			return NewFakeDNSServer(), nil
 		}
@@ -62,28 +62,35 @@ func NewServer(dest net.Destination, dispatcher routing.Dispatcher) (Server, err
 		dest.Network = net.Network_UDP
 	}
 	if dest.Network == net.Network_UDP { // UDP classic DNS mode
-		return NewClassicNameServer(dest, dispatcher), nil
+		return NewClassicNameServer(dest, dispatcher, queryStrategy), nil
 	}
-	return nil, newError("No available name server could be created from ", dest).AtWarning()
+	return nil, errors.New("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(ctx context.Context, ns *NameServer, clientIP net.IP, container router.GeoIPMatcherContainer, matcherInfos *[]*DomainMatcherInfo, updateDomainRule func(strmatcher.Matcher, int, []*DomainMatcherInfo) error) (*Client, error) {
+func NewClient(
+	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)
+		server, err := NewServer(ns.Address.AsDestination(), dispatcher, ns.GetQueryStrategy())
 		if err != nil {
-			return newError("failed to create nameserver").Base(err).AtWarning()
+			return errors.New("failed to create nameserver").Base(err).AtWarning()
 		}
 
-		// Priotize local domains with specific TLDs or without any dot to local DNS
+		// Prioritize local domains with specific TLDs or those without any dot for the 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 apend len(localTLDsAndDotlessDomains) rules into matcherInfos to match `geosite:private` default rule.
+			// Because the `localhost` DNS client will append 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:
@@ -104,7 +111,7 @@ func NewClient(ctx context.Context, ns *NameServer, clientIP net.IP, container r
 		for _, domain := range ns.PrioritizedDomain {
 			domainRule, err := toStrMatcher(domain.Type, domain.Domain)
 			if err != nil {
-				return newError("failed to create prioritized domain").Base(err).AtWarning()
+				return errors.New("failed to create prioritized domain").Base(err).AtWarning()
 			}
 			originalRuleIdx := ruleCurr
 			if ruleCurr < len(ns.OriginalRules) {
@@ -123,7 +130,7 @@ func NewClient(ctx context.Context, ns *NameServer, clientIP net.IP, container r
 			}
 			err = updateDomainRule(domainRule, originalRuleIdx, *matcherInfos)
 			if err != nil {
-				return newError("failed to create prioritized domain").Base(err).AtWarning()
+				return errors.New("failed to create prioritized domain").Base(err).AtWarning()
 			}
 		}
 
@@ -132,7 +139,7 @@ func NewClient(ctx context.Context, ns *NameServer, clientIP net.IP, container r
 		for _, geoip := range ns.Geoip {
 			matcher, err := container.Add(geoip)
 			if err != nil {
-				return newError("failed to create ip matcher").Base(err).AtWarning()
+				return errors.New("failed to create ip matcher").Base(err).AtWarning()
 			}
 			matchers = append(matchers, matcher)
 		}
@@ -140,9 +147,9 @@ func NewClient(ctx context.Context, ns *NameServer, clientIP net.IP, container r
 		if len(clientIP) > 0 {
 			switch ns.Address.Address.GetAddress().(type) {
 			case *net.IPOrDomain_Domain:
-				newError("DNS: client ", ns.Address.Address.GetDomain(), " uses clientIP ", clientIP.String()).AtInfo().WriteToLog()
+				errors.LogInfo(ctx, "DNS: client ", ns.Address.Address.GetDomain(), " uses clientIP ", clientIP.String())
 			case *net.IPOrDomain_Ip:
-				newError("DNS: client ", ns.Address.Address.GetIp(), " uses clientIP ", clientIP.String()).AtInfo().WriteToLog()
+				errors.LogInfo(ctx, "DNS: client ", ns.Address.Address.GetIp(), " uses clientIP ", clientIP.String())
 			}
 		}
 
@@ -156,31 +163,6 @@ func NewClient(ctx context.Context, ns *NameServer, clientIP net.IP, container r
 	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()
@@ -215,6 +197,27 @@ func (c *Client) MatchExpectedIPs(domain string, ips []net.IP) ([]net.IP, error)
 	if len(newIps) == 0 {
 		return nil, errExpectedIPNonMatch
 	}
-	newError("domain ", domain, " expectIPs ", newIps, " matched at server ", c.Name()).AtDebug().WriteToLog()
+	errors.LogDebug(context.Background(), "domain ", domain, " expectIPs ", newIps, " matched at server ", c.Name())
 	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

@@ -12,6 +12,7 @@ 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"
@@ -38,12 +39,13 @@ type DoHNameServer struct {
 	httpClient    *http.Client
 	dohURL        string
 	name          string
+	queryStrategy QueryStrategy
 }
 
 // NewDoHNameServer creates DOH server object for remote resolving.
-func NewDoHNameServer(url *url.URL, dispatcher routing.Dispatcher) (*DoHNameServer, error) {
-	newError("DNS: created Remote DOH client for ", url.String()).AtInfo().WriteToLog()
-	s := baseDOHNameServer(url, "DOH")
+func NewDoHNameServer(url *url.URL, dispatcher routing.Dispatcher, queryStrategy QueryStrategy) (*DoHNameServer, error) {
+	errors.LogInfo(context.Background(), "DNS: created Remote DOH client for ", url.String())
+	s := baseDOHNameServer(url, "DOH", queryStrategy)
 
 	s.dispatcher = dispatcher
 	tr := &http.Transport{
@@ -90,9 +92,9 @@ func NewDoHNameServer(url *url.URL, dispatcher routing.Dispatcher) (*DoHNameServ
 }
 
 // NewDoHLocalNameServer creates DOH client object for local resolving
-func NewDoHLocalNameServer(url *url.URL) *DoHNameServer {
+func NewDoHLocalNameServer(url *url.URL, queryStrategy QueryStrategy) *DoHNameServer {
 	url.Scheme = "https"
-	s := baseDOHNameServer(url, "DOHL")
+	s := baseDOHNameServer(url, "DOHL", queryStrategy)
 	tr := &http.Transport{
 		IdleConnTimeout:   90 * time.Second,
 		ForceAttemptHTTP2: true,
@@ -118,16 +120,17 @@ func NewDoHLocalNameServer(url *url.URL) *DoHNameServer {
 		Timeout:   time.Second * 180,
 		Transport: tr,
 	}
-	newError("DNS: created Local DOH client for ", url.String()).AtInfo().WriteToLog()
+	errors.LogInfo(context.Background(), "DNS: created Local DOH client for ", url.String())
 	return s
 }
 
-func baseDOHNameServer(url *url.URL, prefix string) *DoHNameServer {
+func baseDOHNameServer(url *url.URL, prefix string, queryStrategy QueryStrategy) *DoHNameServer {
 	s := &DoHNameServer{
 		ips:           make(map[string]*record),
 		pub:           pubsub.NewService(),
 		name:          prefix + "//" + url.Host,
 		dohURL:        url.String(),
+		queryStrategy: queryStrategy,
 	}
 	s.cleanup = &task.Periodic{
 		Interval: time.Minute,
@@ -148,7 +151,7 @@ func (s *DoHNameServer) Cleanup() error {
 	defer s.Unlock()
 
 	if len(s.ips) == 0 {
-		return newError("nothing to do. stopping...")
+		return errors.New("nothing to do. stopping...")
 	}
 
 	for domain, record := range s.ips {
@@ -160,7 +163,7 @@ func (s *DoHNameServer) Cleanup() error {
 		}
 
 		if record.A == nil && record.AAAA == nil {
-			newError(s.name, " cleanup ", domain).AtDebug().WriteToLog()
+			errors.LogDebug(context.Background(), s.name, " cleanup ", domain)
 			delete(s.ips, domain)
 		} else {
 			s.ips[domain] = record
@@ -203,7 +206,7 @@ func (s *DoHNameServer) updateIP(req *dnsRequest, ipRec *IPRecord) {
 			updated = true
 		}
 	}
-	newError(s.name, " got answer: ", req.domain, " ", req.reqType, " -> ", ipRec.IP, " ", elapsed).AtInfo().WriteToLog()
+	errors.LogInfo(context.Background(), s.name, " got answer: ", req.domain, " ", req.reqType, " -> ", ipRec.IP, " ", elapsed)
 
 	if updated {
 		s.ips[req.domain] = rec
@@ -223,10 +226,10 @@ func (s *DoHNameServer) newReqID() uint16 {
 }
 
 func (s *DoHNameServer) sendQuery(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption) {
-	newError(s.name, " querying: ", domain).AtInfo().WriteToLog(session.ExportIDToError(ctx))
+	errors.LogInfo(ctx, s.name, " querying: ", domain)
 
 	if s.name+"." == "DOH//"+domain {
-		newError(s.name, " tries to resolve itself! Use IP or set \"hosts\" instead.").AtError().WriteToLog(session.ExportIDToError(ctx))
+		errors.LogError(ctx, s.name, " tries to resolve itself! Use IP or set \"hosts\" instead.")
 		return
 	}
 
@@ -256,7 +259,7 @@ func (s *DoHNameServer) sendQuery(ctx context.Context, domain string, clientIP n
 			})
 
 			// forced to use mux for DOH
-			// dnsCtx = session.ContextWithMuxPrefered(dnsCtx, true)
+			// dnsCtx = session.ContextWithMuxPreferred(dnsCtx, true)
 
 			var cancel context.CancelFunc
 			dnsCtx, cancel = context.WithDeadline(dnsCtx, deadline)
@@ -264,17 +267,17 @@ func (s *DoHNameServer) sendQuery(ctx context.Context, domain string, clientIP n
 
 			b, err := dns.PackMessage(r.msg)
 			if err != nil {
-				newError("failed to pack dns query for ", domain).Base(err).AtError().WriteToLog()
+				errors.LogErrorInner(ctx, err, "failed to pack dns query for ", domain)
 				return
 			}
 			resp, err := s.dohHTTPSContext(dnsCtx, b.Bytes())
 			if err != nil {
-				newError("failed to retrieve response for ", domain).Base(err).AtError().WriteToLog()
+				errors.LogErrorInner(ctx, err, "failed to retrieve response for ", domain)
 				return
 			}
 			rec, err := parseResponse(resp)
 			if err != nil {
-				newError("failed to handle DOH response for ", domain).Base(err).AtError().WriteToLog()
+				errors.LogErrorInner(ctx, err, "failed to handle DOH response for ", domain)
 				return
 			}
 			s.updateIP(r, rec)
@@ -353,13 +356,17 @@ 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
 	fqdn := Fqdn(domain)
+	option = ResolveIpOptionOverride(s.queryStrategy, option)
+	if !option.IPv4Enable && !option.IPv6Enable {
+		return nil, dns_feature.ErrEmptyResponse
+	}
 
 	if disableCache {
-		newError("DNS cache is disabled. Querying IP for ", domain, " at ", s.name).AtDebug().WriteToLog()
+		errors.LogDebug(ctx, "DNS cache is disabled. Querying IP for ", domain, " at ", s.name)
 	} else {
 		ips, err := s.findIPsForDomain(fqdn, option)
-		if err != errRecordNotFound {
-			newError(s.name, " cache HIT ", domain, " -> ", ips).Base(err).AtDebug().WriteToLog()
+		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
 		}

app/dns/nameserver_doh_test.go

@@ -17,7 +17,7 @@ func TestDOHNameServer(t *testing.T) {
 	url, err := url.Parse("https+local://1.1.1.1/dns-query")
 	common.Must(err)
 
-	s := NewDoHLocalNameServer(url)
+	s := NewDoHLocalNameServer(url, QueryStrategy_USE_IP)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
 	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
@@ -34,7 +34,7 @@ func TestDOHNameServerWithCache(t *testing.T) {
 	url, err := url.Parse("https+local://1.1.1.1/dns-query")
 	common.Must(err)
 
-	s := NewDoHLocalNameServer(url)
+	s := NewDoHLocalNameServer(url, QueryStrategy_USE_IP)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
 	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
@@ -57,3 +57,49 @@ func TestDOHNameServerWithCache(t *testing.T) {
 		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

@@ -3,6 +3,7 @@ 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"
@@ -25,7 +26,7 @@ func (f *FakeDNSServer) QueryIP(ctx context.Context, domain string, _ net.IP, op
 		if err := core.RequireFeatures(ctx, func(fd dns.FakeDNSEngine) {
 			f.fakeDNSEngine = fd
 		}); err != nil {
-			return nil, newError("Unable to locate a fake DNS Engine").Base(err).AtError()
+			return nil, errors.New("Unable to locate a fake DNS Engine").Base(err).AtError()
 		}
 	}
 	var ips []net.Address
@@ -37,10 +38,10 @@ func (f *FakeDNSServer) QueryIP(ctx context.Context, domain string, _ net.IP, op
 
 	netIP, err := toNetIP(ips)
 	if err != nil {
-		return nil, newError("Unable to convert IP to net ip").Base(err).AtError()
+		return nil, errors.New("Unable to convert IP to net ip").Base(err).AtError()
 	}
 
-	newError(f.Name(), " got answer: ", domain, " -> ", ips).AtInfo().WriteToLog()
+	errors.LogInfo(ctx, f.Name(), " got answer: ", domain, " -> ", ips)
 
 	if len(netIP) > 0 {
 		return netIP, nil

app/dns/nameserver_local.go

@@ -5,6 +5,7 @@ import (
 	"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"
@@ -19,7 +20,7 @@ type LocalNameServer struct {
 const errEmptyResponse = "No address associated with hostname"
 
 // QueryIP implements Server.
-func (s *LocalNameServer) QueryIP(_ context.Context, domain string, _ net.IP, option dns.IPOption, _ bool) (ips []net.IP, err error) {
+func (s *LocalNameServer) QueryIP(ctx context.Context, domain string, _ net.IP, option dns.IPOption, _ bool) (ips []net.IP, err error) {
 	start := time.Now()
 	ips, err = s.client.LookupIP(domain, option)
 
@@ -28,7 +29,7 @@ func (s *LocalNameServer) QueryIP(_ context.Context, domain string, _ net.IP, op
 	}
 
 	if len(ips) > 0 {
-		newError("Localhost got answer: ", domain, " -> ", ips).AtInfo().WriteToLog()
+		errors.LogInfo(ctx, "Localhost got answer: ", domain, " -> ", ips)
 		log.Record(&log.DNSLog{Server: s.Name(), Domain: domain, Result: ips, Status: log.DNSQueried, Elapsed: time.Since(start), Error: err})
 	}
 
@@ -42,7 +43,7 @@ func (s *LocalNameServer) Name() string {
 
 // NewLocalNameServer creates localdns server object for directly lookup in system DNS.
 func NewLocalNameServer() *LocalNameServer {
-	newError("DNS: created localhost client").AtInfo().WriteToLog()
+	errors.LogInfo(context.Background(), "DNS: created localhost client")
 	return &LocalNameServer{
 		client: localdns.New(),
 	}

app/dns/nameserver_quic.go

@@ -1,7 +1,9 @@
 package dns
 
 import (
+	"bytes"
 	"context"
+	"encoding/binary"
 	"net/url"
 	"sync"
 	"sync/atomic"
@@ -10,6 +12,7 @@ import (
 	"github.com/quic-go/quic-go"
 	"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"
@@ -24,7 +27,7 @@ import (
 
 // NextProtoDQ - During connection establishment, DNS/QUIC support is indicated
 // by selecting the ALPN token "dq" in the crypto handshake.
-const NextProtoDQ = "doq-i00"
+const NextProtoDQ = "doq"
 
 const handshakeTimeout = time.Second * 8
 
@@ -38,14 +41,15 @@ type QUICNameServer struct {
 	name          string
 	destination   *net.Destination
 	connection    quic.Connection
+	queryStrategy QueryStrategy
 }
 
 // NewQUICNameServer creates DNS-over-QUIC client object for local resolving
-func NewQUICNameServer(url *url.URL) (*QUICNameServer, error) {
-	newError("DNS: created Local DNS-over-QUIC client for ", url.String()).AtInfo().WriteToLog()
+func NewQUICNameServer(url *url.URL, queryStrategy QueryStrategy) (*QUICNameServer, error) {
+	errors.LogInfo(context.Background(), "DNS: created Local DNS-over-QUIC client for ", url.String())
 
 	var err error
-	port := net.Port(784)
+	port := net.Port(853)
 	if url.Port() != "" {
 		port, err = net.PortFromString(url.Port())
 		if err != nil {
@@ -59,6 +63,7 @@ func NewQUICNameServer(url *url.URL) (*QUICNameServer, error) {
 		pub:           pubsub.NewService(),
 		name:          url.String(),
 		destination:   &dest,
+		queryStrategy: queryStrategy,
 	}
 	s.cleanup = &task.Periodic{
 		Interval: time.Minute,
@@ -80,7 +85,7 @@ func (s *QUICNameServer) Cleanup() error {
 	defer s.Unlock()
 
 	if len(s.ips) == 0 {
-		return newError("nothing to do. stopping...")
+		return errors.New("nothing to do. stopping...")
 	}
 
 	for domain, record := range s.ips {
@@ -92,7 +97,7 @@ func (s *QUICNameServer) Cleanup() error {
 		}
 
 		if record.A == nil && record.AAAA == nil {
-			newError(s.name, " cleanup ", domain).AtDebug().WriteToLog()
+			errors.LogDebug(context.Background(), s.name, " cleanup ", domain)
 			delete(s.ips, domain)
 		} else {
 			s.ips[domain] = record
@@ -135,7 +140,7 @@ func (s *QUICNameServer) updateIP(req *dnsRequest, ipRec *IPRecord) {
 			updated = true
 		}
 	}
-	newError(s.name, " got answer: ", req.domain, " ", req.reqType, " -> ", ipRec.IP, " ", elapsed).AtInfo().WriteToLog()
+	errors.LogInfo(context.Background(), s.name, " got answer: ", req.domain, " ", req.reqType, " -> ", ipRec.IP, " ", elapsed)
 
 	if updated {
 		s.ips[req.domain] = rec
@@ -155,7 +160,7 @@ func (s *QUICNameServer) newReqID() uint16 {
 }
 
 func (s *QUICNameServer) sendQuery(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption) {
-	newError(s.name, " querying: ", domain).AtInfo().WriteToLog(session.ExportIDToError(ctx))
+	errors.LogInfo(ctx, s.name, " querying: ", domain)
 
 	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(clientIP))
 
@@ -188,19 +193,24 @@ func (s *QUICNameServer) sendQuery(ctx context.Context, domain string, clientIP
 
 			b, err := dns.PackMessage(r.msg)
 			if err != nil {
-				newError("failed to pack dns query").Base(err).AtError().WriteToLog()
+				errors.LogErrorInner(ctx, err, "failed to pack dns query")
 				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 {
-				newError("failed to open quic connection").Base(err).AtError().WriteToLog()
+				errors.LogErrorInner(ctx, err, "failed to open quic connection")
 				return
 			}
 
-			_, err = conn.Write(b.Bytes())
+			_, err = conn.Write(dnsReqBuf.Bytes())
 			if err != nil {
-				newError("failed to send query").Base(err).AtError().WriteToLog()
+				errors.LogErrorInner(ctx, err, "failed to send query")
 				return
 			}
 
@@ -208,15 +218,27 @@ func (s *QUICNameServer) sendQuery(ctx context.Context, domain string, clientIP
 
 			respBuf := buf.New()
 			defer respBuf.Release()
-			n, err := respBuf.ReadFrom(conn)
+			n, err := respBuf.ReadFullFrom(conn, 2)
 			if err != nil && n == 0 {
-				newError("failed to read response").Base(err).AtError().WriteToLog()
+				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 {
-				newError("failed to handle response").Base(err).AtError().WriteToLog()
+				errors.LogErrorInner(ctx, err, "failed to handle response")
 				return
 			}
 			s.updateIP(r, rec)
@@ -269,13 +291,17 @@ 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) {
 	fqdn := Fqdn(domain)
+	option = ResolveIpOptionOverride(s.queryStrategy, option)
+	if !option.IPv4Enable && !option.IPv6Enable {
+		return nil, dns_feature.ErrEmptyResponse
+	}
 
 	if disableCache {
-		newError("DNS cache is disabled. Querying IP for ", domain, " at ", s.name).AtDebug().WriteToLog()
+		errors.LogDebug(ctx, "DNS cache is disabled. Querying IP for ", domain, " at ", s.name)
 	} else {
 		ips, err := s.findIPsForDomain(fqdn, option)
-		if err != errRecordNotFound {
-			newError(s.name, " cache HIT ", domain, " -> ", ips).Base(err).AtDebug().WriteToLog()
+		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
 		}
@@ -373,8 +399,8 @@ func (s *QUICNameServer) openConnection() (quic.Connection, error) {
 	quicConfig := &quic.Config{
 		HandshakeIdleTimeout: handshakeTimeout,
 	}
-
-	conn, 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,

app/dns/nameserver_quic_test.go

@@ -14,9 +14,9 @@ import (
 )
 
 func TestQUICNameServer(t *testing.T) {
-	url, err := url.Parse("quic://dns.adguard.com")
+	url, err := url.Parse("quic://dns.adguard-dns.com")
 	common.Must(err)
-	s, err := NewQUICNameServer(url)
+	s, err := NewQUICNameServer(url, QueryStrategy_USE_IP)
 	common.Must(err)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
 	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns.IPOption{
@@ -40,3 +40,49 @@ func TestQUICNameServer(t *testing.T) {
 		t.Fatal(r)
 	}
 }
+
+func TestQUICNameServerWithIPv4Override(t *testing.T) {
+	url, err := url.Parse("quic://dns.adguard-dns.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-dns.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

@@ -11,6 +11,7 @@ import (
 
 	"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"
@@ -34,11 +35,16 @@ type TCPNameServer struct {
 	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) (*TCPNameServer, error) {
-	s, err := baseTCPNameServer(url, "TCP")
+func NewTCPNameServer(
+	url *url.URL,
+	dispatcher routing.Dispatcher,
+	queryStrategy QueryStrategy,
+) (*TCPNameServer, error) {
+	s, err := baseTCPNameServer(url, "TCP", queryStrategy)
 	if err != nil {
 		return nil, err
 	}
@@ -59,8 +65,8 @@ func NewTCPNameServer(url *url.URL, dispatcher routing.Dispatcher) (*TCPNameServ
 }
 
 // NewTCPLocalNameServer creates DNS over TCP client object for local resolving
-func NewTCPLocalNameServer(url *url.URL) (*TCPNameServer, error) {
-	s, err := baseTCPNameServer(url, "TCPL")
+func NewTCPLocalNameServer(url *url.URL, queryStrategy QueryStrategy) (*TCPNameServer, error) {
+	s, err := baseTCPNameServer(url, "TCPL", queryStrategy)
 	if err != nil {
 		return nil, err
 	}
@@ -72,12 +78,11 @@ func NewTCPLocalNameServer(url *url.URL) (*TCPNameServer, error) {
 	return s, nil
 }
 
-func baseTCPNameServer(url *url.URL, prefix string) (*TCPNameServer, error) {
-	var err error
+func baseTCPNameServer(url *url.URL, prefix string, queryStrategy QueryStrategy) (*TCPNameServer, error) {
 	port := net.Port(53)
 	if url.Port() != "" {
-		port, err = net.PortFromString(url.Port())
-		if err != nil {
+		var err error
+		if port, err = net.PortFromString(url.Port()); err != nil {
 			return nil, err
 		}
 	}
@@ -88,6 +93,7 @@ func baseTCPNameServer(url *url.URL, prefix string) (*TCPNameServer, error) {
 		ips:           make(map[string]*record),
 		pub:           pubsub.NewService(),
 		name:          prefix + "//" + dest.NetAddr(),
+		queryStrategy: queryStrategy,
 	}
 	s.cleanup = &task.Periodic{
 		Interval: time.Minute,
@@ -109,7 +115,7 @@ func (s *TCPNameServer) Cleanup() error {
 	defer s.Unlock()
 
 	if len(s.ips) == 0 {
-		return newError("nothing to do. stopping...")
+		return errors.New("nothing to do. stopping...")
 	}
 
 	for domain, record := range s.ips {
@@ -121,7 +127,7 @@ func (s *TCPNameServer) Cleanup() error {
 		}
 
 		if record.A == nil && record.AAAA == nil {
-			newError(s.name, " cleanup ", domain).AtDebug().WriteToLog()
+			errors.LogDebug(context.Background(), s.name, " cleanup ", domain)
 			delete(s.ips, domain)
 		} else {
 			s.ips[domain] = record
@@ -164,7 +170,7 @@ func (s *TCPNameServer) updateIP(req *dnsRequest, ipRec *IPRecord) {
 			updated = true
 		}
 	}
-	newError(s.name, " got answer: ", req.domain, " ", req.reqType, " -> ", ipRec.IP, " ", elapsed).AtInfo().WriteToLog()
+	errors.LogInfo(context.Background(), s.name, " got answer: ", req.domain, " ", req.reqType, " -> ", ipRec.IP, " ", elapsed)
 
 	if updated {
 		s.ips[req.domain] = rec
@@ -184,7 +190,7 @@ func (s *TCPNameServer) newReqID() uint16 {
 }
 
 func (s *TCPNameServer) sendQuery(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption) {
-	newError(s.name, " querying DNS for: ", domain).AtDebug().WriteToLog(session.ExportIDToError(ctx))
+	errors.LogDebug(ctx, s.name, " querying DNS for: ", domain)
 
 	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(clientIP))
 
@@ -214,13 +220,13 @@ func (s *TCPNameServer) sendQuery(ctx context.Context, domain string, clientIP n
 
 			b, err := dns.PackMessage(r.msg)
 			if err != nil {
-				newError("failed to pack dns query").Base(err).AtError().WriteToLog()
+				errors.LogErrorInner(ctx, err, "failed to pack dns query")
 				return
 			}
 
 			conn, err := s.dial(dnsCtx)
 			if err != nil {
-				newError("failed to dial namesever").Base(err).AtError().WriteToLog()
+				errors.LogErrorInner(ctx, err, "failed to dial namesever")
 				return
 			}
 			defer conn.Close()
@@ -231,7 +237,7 @@ func (s *TCPNameServer) sendQuery(ctx context.Context, domain string, clientIP n
 
 			_, err = conn.Write(dnsReqBuf.Bytes())
 			if err != nil {
-				newError("failed to send query").Base(err).AtError().WriteToLog()
+				errors.LogErrorInner(ctx, err, "failed to send query")
 				return
 			}
 			dnsReqBuf.Release()
@@ -240,25 +246,25 @@ func (s *TCPNameServer) sendQuery(ctx context.Context, domain string, clientIP n
 			defer respBuf.Release()
 			n, err := respBuf.ReadFullFrom(conn, 2)
 			if err != nil && n == 0 {
-				newError("failed to read response length").Base(err).AtError().WriteToLog()
+				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 {
-				newError("failed to parse response length").Base(err).AtError().WriteToLog()
+				errors.LogErrorInner(ctx, err, "failed to parse response length")
 				return
 			}
 			respBuf.Clear()
 			n, err = respBuf.ReadFullFrom(conn, int32(length))
 			if err != nil && n == 0 {
-				newError("failed to read response length").Base(err).AtError().WriteToLog()
+				errors.LogErrorInner(ctx, err, "failed to read response length")
 				return
 			}
 
 			rec, err := parseResponse(respBuf.Bytes())
 			if err != nil {
-				newError("failed to parse DNS over TCP response").Base(err).AtError().WriteToLog()
+				errors.LogErrorInner(ctx, err, "failed to parse DNS over TCP response")
 				return
 			}
 
@@ -308,13 +314,17 @@ func (s *TCPNameServer) findIPsForDomain(domain string, option dns_feature.IPOpt
 // 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 {
-		newError("DNS cache is disabled. Querying IP for ", domain, " at ", s.name).AtDebug().WriteToLog()
+		errors.LogDebug(ctx, "DNS cache is disabled. Querying IP for ", domain, " at ", s.name)
 	} else {
 		ips, err := s.findIPsForDomain(fqdn, option)
-		if err != errRecordNotFound {
-			newError(s.name, " cache HIT ", domain, " -> ", ips).Base(err).AtDebug().WriteToLog()
+		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
 		}

app/dns/nameserver_tcp_test.go

@@ -16,7 +16,7 @@ import (
 func TestTCPLocalNameServer(t *testing.T) {
 	url, err := url.Parse("tcp+local://8.8.8.8")
 	common.Must(err)
-	s, err := NewTCPLocalNameServer(url)
+	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{
@@ -33,7 +33,7 @@ func TestTCPLocalNameServer(t *testing.T) {
 func TestTCPLocalNameServerWithCache(t *testing.T) {
 	url, err := url.Parse("tcp+local://8.8.8.8")
 	common.Must(err)
-	s, err := NewTCPLocalNameServer(url)
+	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{
@@ -57,3 +57,51 @@ func TestTCPLocalNameServerWithCache(t *testing.T) {
 		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"
@@ -32,10 +32,11 @@ type ClassicNameServer struct {
 	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) *ClassicNameServer {
+func NewClassicNameServer(address net.Destination, dispatcher routing.Dispatcher, queryStrategy QueryStrategy) *ClassicNameServer {
 	// default to 53 if unspecific
 	if address.Port == 0 {
 		address.Port = net.Port(53)
@@ -47,13 +48,14 @@ func NewClassicNameServer(address net.Destination, dispatcher routing.Dispatcher
 		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)
-	newError("DNS: created UDP client initialized for ", address.NetAddr()).AtInfo().WriteToLog()
+	errors.LogInfo(context.Background(), "DNS: created UDP client initialized for ", address.NetAddr())
 	return s
 }
 
@@ -69,7 +71,7 @@ func (s *ClassicNameServer) Cleanup() error {
 	defer s.Unlock()
 
 	if len(s.ips) == 0 && len(s.requests) == 0 {
-		return newError(s.name, " nothing to do. stopping...")
+		return errors.New(s.name, " nothing to do. stopping...")
 	}
 
 	for domain, record := range s.ips {
@@ -81,7 +83,7 @@ func (s *ClassicNameServer) Cleanup() error {
 		}
 
 		if record.A == nil && record.AAAA == nil {
-			newError(s.name, " cleanup ", domain).AtDebug().WriteToLog()
+			errors.LogDebug(context.Background(), s.name, " cleanup ", domain)
 			delete(s.ips, domain)
 		} else {
 			s.ips[domain] = record
@@ -109,7 +111,7 @@ 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 {
-		newError(s.name, " fail to parse responded DNS udp").AtError().WriteToLog()
+		errors.LogError(ctx, s.name, " fail to parse responded DNS udp")
 		return
 	}
 
@@ -122,7 +124,7 @@ func (s *ClassicNameServer) HandleResponse(ctx context.Context, packet *udp_prot
 	}
 	s.Unlock()
 	if !ok {
-		newError(s.name, " cannot find the pending request").AtError().WriteToLog()
+		errors.LogError(ctx, s.name, " cannot find the pending request")
 		return
 	}
 
@@ -135,7 +137,7 @@ func (s *ClassicNameServer) HandleResponse(ctx context.Context, packet *udp_prot
 	}
 
 	elapsed := time.Since(req.start)
-	newError(s.name, " got answer: ", req.domain, " ", req.reqType, " -> ", ipRec.IP, " ", elapsed).AtInfo().WriteToLog()
+	errors.LogInfo(ctx, s.name, " got answer: ", req.domain, " ", req.reqType, " -> ", ipRec.IP, " ", elapsed)
 	if len(req.domain) > 0 && (rec.A != nil || rec.AAAA != nil) {
 		s.updateIP(req.domain, &rec)
 	}
@@ -160,7 +162,7 @@ func (s *ClassicNameServer) updateIP(domain string, newRec *record) {
 	}
 
 	if updated {
-		newError(s.name, " updating IP records for domain:", domain).AtDebug().WriteToLog()
+		errors.LogDebug(context.Background(), s.name, " updating IP records for domain:", domain)
 		s.ips[domain] = rec
 	}
 	if newRec.A != nil {
@@ -187,7 +189,7 @@ func (s *ClassicNameServer) addPendingRequest(req *dnsRequest) {
 }
 
 func (s *ClassicNameServer) sendQuery(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption) {
-	newError(s.name, " querying DNS for: ", domain).AtDebug().WriteToLog(session.ExportIDToError(ctx))
+	errors.LogDebug(ctx, s.name, " querying DNS for: ", domain)
 
 	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(clientIP))
 
@@ -239,13 +241,17 @@ func (s *ClassicNameServer) findIPsForDomain(domain string, option dns_feature.I
 // QueryIP implements Server.
 func (s *ClassicNameServer) 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 {
-		newError("DNS cache is disabled. Querying IP for ", domain, " at ", s.name).AtDebug().WriteToLog()
+		errors.LogDebug(ctx, "DNS cache is disabled. Querying IP for ", domain, " at ", s.name)
 	} else {
 		ips, err := s.findIPsForDomain(fqdn, option)
-		if err != errRecordNotFound {
-			newError(s.name, " cache HIT ", domain, " -> ", ips).Base(err).AtDebug().WriteToLog()
+		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
 		}

app/log/command/command.go

@@ -1,12 +1,11 @@
 package command
 
-//go:generate go run github.com/xtls/xray-core/common/errors/errorgen
-
 import (
 	"context"
 
 	"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"
 )
@@ -19,13 +18,13 @@ 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, newError("unable to get logger instance")
+		return nil, errors.New("unable to get logger instance")
 	}
 	if err := logger.Close(); err != nil {
-		return nil, newError("failed to close logger").Base(err)
+		return nil, errors.New("failed to close logger").Base(err)
 	}
 	if err := logger.Start(); err != nil {
-		return nil, newError("failed to start logger").Base(err)
+		return nil, errors.New("failed to start logger").Base(err)
 	}
 	return &RestartLoggerResponse{}, nil
 }

app/log/command/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.28.1
-// 	protoc        v3.21.12
+// 	protoc-gen-go v1.35.1
+// 	protoc        v5.28.2
 // source: app/log/command/config.proto
 
 package command
@@ -28,11 +28,9 @@ 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 {
@@ -43,7 +41,7 @@ func (*Config) ProtoMessage() {}
 
 func (x *Config) ProtoReflect() protoreflect.Message {
 	mi := &file_app_log_command_config_proto_msgTypes[0]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -66,11 +64,9 @@ 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 {
@@ -81,7 +77,7 @@ func (*RestartLoggerRequest) ProtoMessage() {}
 
 func (x *RestartLoggerRequest) ProtoReflect() protoreflect.Message {
 	mi := &file_app_log_command_config_proto_msgTypes[1]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -104,11 +100,9 @@ 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 {
@@ -119,7 +113,7 @@ func (*RestartLoggerResponse) ProtoMessage() {}
 
 func (x *RestartLoggerResponse) ProtoReflect() protoreflect.Message {
 	mi := &file_app_log_command_config_proto_msgTypes[2]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -174,7 +168,7 @@ 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 = []interface{}{
+var file_app_log_command_config_proto_goTypes = []any{
 	(*Config)(nil),                // 0: xray.app.log.command.Config
 	(*RestartLoggerRequest)(nil),  // 1: xray.app.log.command.RestartLoggerRequest
 	(*RestartLoggerResponse)(nil), // 2: xray.app.log.command.RestartLoggerResponse
@@ -194,44 +188,6 @@ 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

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
 // versions:
-// - protoc-gen-go-grpc v1.2.0
-// - protoc             v3.21.12
+// - protoc-gen-go-grpc v1.5.1
+// - protoc             v5.28.2
 // source: app/log/command/config.proto
 
 package command
@@ -15,8 +15,12 @@ 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 v1.32.0 or later.
-const _ = grpc.SupportPackageIsVersion7
+// Requires gRPC-Go v1.64.0 or later.
+const _ = grpc.SupportPackageIsVersion9
+
+const (
+	LoggerService_RestartLogger_FullMethodName = "/xray.app.log.command.LoggerService/RestartLogger"
+)
 
 // LoggerServiceClient is the client API for LoggerService service.
 //
@@ -34,8 +38,9 @@ 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, "/xray.app.log.command.LoggerService/RestartLogger", in, out, opts...)
+	err := c.cc.Invoke(ctx, LoggerService_RestartLogger_FullMethodName, in, out, cOpts...)
 	if err != nil {
 		return nil, err
 	}
@@ -44,20 +49,24 @@ 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 forward compatible implementations.
-type UnimplementedLoggerServiceServer struct {
-}
+// UnimplementedLoggerServiceServer 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 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
@@ -67,6 +76,13 @@ 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)
 }
 
@@ -80,7 +96,7 @@ func _LoggerService_RestartLogger_Handler(srv interface{}, ctx context.Context,
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: "/xray.app.log.command.LoggerService/RestartLogger",
+		FullMethod: LoggerService_RestartLogger_FullMethodName,
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(LoggerServiceServer).RestartLogger(ctx, req.(*RestartLoggerRequest))

app/log/command/errors.generated.go

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

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.28.1
-// 	protoc        v3.21.12
+// 	protoc-gen-go v1.35.1
+// 	protoc        v5.28.2
 // source: app/log/config.proto
 
 package log
@@ -84,15 +84,14 @@ 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 {
@@ -103,7 +102,7 @@ func (*Config) ProtoMessage() {}
 
 func (x *Config) ProtoReflect() protoreflect.Message {
 	mi := &file_app_log_config_proto_msgTypes[0]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -160,13 +159,20 @@ 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, 0xbb, 0x02, 0x0a, 0x06, 0x43,
+	0x2f, 0x6c, 0x6f, 0x67, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0xde, 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,
@@ -186,15 +192,18 @@ 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, 0x2a, 0x35, 0x0a, 0x07, 0x4c, 0x6f, 0x67, 0x54,
-	0x79, 0x70, 0x65, 0x12, 0x08, 0x0a, 0x04, 0x4e, 0x6f, 0x6e, 0x65, 0x10, 0x00, 0x12, 0x0b, 0x0a,
-	0x07, 0x43, 0x6f, 0x6e, 0x73, 0x6f, 0x6c, 0x65, 0x10, 0x01, 0x12, 0x08, 0x0a, 0x04, 0x46, 0x69,
-	0x6c, 0x65, 0x10, 0x02, 0x12, 0x09, 0x0a, 0x05, 0x45, 0x76, 0x65, 0x6e, 0x74, 0x10, 0x03, 0x42,
-	0x46, 0x0a, 0x10, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e,
-	0x6c, 0x6f, 0x67, 0x50, 0x01, 0x5a, 0x21, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f,
-	0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65,
-	0x2f, 0x61, 0x70, 0x70, 0x2f, 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,
+	0x6c, 0x65, 0x44, 0x6e, 0x73, 0x4c, 0x6f, 0x67, 0x12, 0x21, 0x0a, 0x0c, 0x6d, 0x61, 0x73, 0x6b,
+	0x5f, 0x61, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x18, 0x07, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0b,
+	0x6d, 0x61, 0x73, 0x6b, 0x41, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x2a, 0x35, 0x0a, 0x07, 0x4c,
+	0x6f, 0x67, 0x54, 0x79, 0x70, 0x65, 0x12, 0x08, 0x0a, 0x04, 0x4e, 0x6f, 0x6e, 0x65, 0x10, 0x00,
+	0x12, 0x0b, 0x0a, 0x07, 0x43, 0x6f, 0x6e, 0x73, 0x6f, 0x6c, 0x65, 0x10, 0x01, 0x12, 0x08, 0x0a,
+	0x04, 0x46, 0x69, 0x6c, 0x65, 0x10, 0x02, 0x12, 0x09, 0x0a, 0x05, 0x45, 0x76, 0x65, 0x6e, 0x74,
+	0x10, 0x03, 0x42, 0x46, 0x0a, 0x10, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61,
+	0x70, 0x70, 0x2e, 0x6c, 0x6f, 0x67, 0x50, 0x01, 0x5a, 0x21, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62,
+	0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63,
+	0x6f, 0x72, 0x65, 0x2f, 0x61, 0x70, 0x70, 0x2f, 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 (
@@ -211,7 +220,7 @@ 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 = []interface{}{
+var file_app_log_config_proto_goTypes = []any{
 	(LogType)(0),      // 0: xray.app.log.LogType
 	(*Config)(nil),    // 1: xray.app.log.Config
 	(log.Severity)(0), // 2: xray.common.log.Severity
@@ -232,20 +241,6 @@ 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

@@ -23,4 +23,5 @@ 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

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

@@ -1,12 +1,14 @@
 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"
 )
 
@@ -29,13 +31,13 @@ func New(ctx context.Context, config *Config) (*Instance, error) {
 	}
 	log.RegisterHandler(g)
 
-	// start logger instantly on inited
-	// other modules would log during init
+	// start logger now,
+	// then other modules will be able to log during initialization
 	if err := g.startInternal(); err != nil {
 		return nil, err
 	}
 
-	newError("Logger started").AtDebug().WriteToLog()
+	errors.LogDebug(ctx, "Logger started")
 	return g, nil
 }
 
@@ -77,10 +79,10 @@ func (g *Instance) startInternal() error {
 	g.active = true
 
 	if err := g.initAccessLogger(); err != nil {
-		return newError("failed to initialize access logger").Base(err).AtWarning()
+		return errors.New("failed to initialize access logger").Base(err).AtWarning()
 	}
 	if err := g.initErrorLogger(); err != nil {
-		return newError("failed to initialize error logger").Base(err).AtWarning()
+		return errors.New("failed to initialize error logger").Base(err).AtWarning()
 	}
 
 	return nil
@@ -100,18 +102,25 @@ 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
@@ -120,7 +129,7 @@ func (g *Instance) Handle(msg log.Message) {
 
 // Close implements common.Closable.Close().
 func (g *Instance) Close() error {
-	newError("Logger closing").AtDebug().WriteToLog()
+	errors.LogDebug(context.Background(), "Logger closing")
 
 	g.Lock()
 	defer g.Unlock()
@@ -140,6 +149,56 @@ 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

@@ -4,6 +4,7 @@ import (
 	"sync"
 
 	"github.com/xtls/xray-core/common"
+	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/log"
 )
 
@@ -19,7 +20,7 @@ var handlerCreatorMapLock = &sync.RWMutex{}
 
 func RegisterHandlerCreator(logType LogType, f HandlerCreator) error {
 	if f == nil {
-		return newError("nil HandlerCreator")
+		return errors.New("nil HandlerCreator")
 	}
 
 	handlerCreatorMapLock.Lock()
@@ -35,7 +36,7 @@ func createHandler(logType LogType, options HandlerCreatorOptions) (log.Handler,
 
 	creator, found := handlerCreatorMap[logType]
 	if !found {
-		return nil, newError("unable to create log handler for ", logType)
+		return nil, errors.New("unable to create log handler for ", logType)
 	}
 	return creator(logType, options)
 }

app/metrics/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.28.1
-// 	protoc        v3.21.12
+// 	protoc-gen-go v1.35.1
+// 	protoc        v5.28.2
 // source: app/metrics/config.proto
 
 package metrics
@@ -32,11 +32,9 @@ type Config struct {
 
 func (x *Config) Reset() {
 	*x = Config{}
-	if protoimpl.UnsafeEnabled {
 	mi := &file_app_metrics_config_proto_msgTypes[0]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
-	}
 }
 
 func (x *Config) String() string {
@@ -47,7 +45,7 @@ func (*Config) ProtoMessage() {}
 
 func (x *Config) ProtoReflect() protoreflect.Message {
 	mi := &file_app_metrics_config_proto_msgTypes[0]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -98,7 +96,7 @@ func file_app_metrics_config_proto_rawDescGZIP() []byte {
 }
 
 var file_app_metrics_config_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
-var file_app_metrics_config_proto_goTypes = []interface{}{
+var file_app_metrics_config_proto_goTypes = []any{
 	(*Config)(nil), // 0: xray.app.metrics.Config
 }
 var file_app_metrics_config_proto_depIdxs = []int32{
@@ -114,20 +112,6 @@ func file_app_metrics_config_proto_init() {
 	if File_app_metrics_config_proto != nil {
 		return
 	}
-	if !protoimpl.UnsafeEnabled {
-		file_app_metrics_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/metrics/errors.generated.go

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

app/metrics/metrics.go

@@ -10,6 +10,7 @@ import (
 	"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"
@@ -93,12 +94,12 @@ func (p *MetricsHandler) Start() error {
 
 	go func() {
 		if err := http.Serve(listener, http.DefaultServeMux); err != nil {
-			newError("failed to start metrics server").Base(err).AtError().WriteToLog()
+			errors.LogErrorInner(context.Background(), err, "failed to start metrics server")
 		}
 	}()
 
 	if err := p.ohm.RemoveHandler(context.Background(), p.tag); err != nil {
-		newError("failed to remove existing handler").WriteToLog()
+		errors.LogInfo(context.Background(), "failed to remove existing handler")
 	}
 
 	return p.ohm.AddHandler(context.Background(), &Outbound{

app/metrics/outbound.go

@@ -5,6 +5,7 @@ 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"
@@ -31,7 +32,7 @@ func (l *OutboundListener) add(conn net.Conn) {
 func (l *OutboundListener) Accept() (net.Conn, error) {
 	select {
 	case <-l.done.Wait():
-		return nil, newError("listen closed")
+		return nil, errors.New("listen closed")
 	case c := <-l.buffer:
 		return c, nil
 	}

app/observatory/burst/burst.go

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

app/observatory/burst/burstobserver.go

@@ -0,0 +1,110 @@
+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

@@ -0,0 +1,246 @@
+// 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{
+	0x0a, 0x22, 0x61, 0x70, 0x70, 0x2f, 0x6f, 0x62, 0x73, 0x65, 0x72, 0x76, 0x61, 0x74, 0x6f, 0x72,
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+	0x72, 0x6f, 0x74, 0x6f, 0x12, 0x1f, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x72, 0x65, 0x2e,
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+	0x62, 0x75, 0x72, 0x73, 0x74, 0x22, 0x87, 0x01, 0x0a, 0x06, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67,
+	0x12, 0x29, 0x0a, 0x10, 0x73, 0x75, 0x62, 0x6a, 0x65, 0x63, 0x74, 0x5f, 0x73, 0x65, 0x6c, 0x65,
+	0x63, 0x74, 0x6f, 0x72, 0x18, 0x02, 0x20, 0x03, 0x28, 0x09, 0x52, 0x0f, 0x73, 0x75, 0x62, 0x6a,
+	0x65, 0x63, 0x74, 0x53, 0x65, 0x6c, 0x65, 0x63, 0x74, 0x6f, 0x72, 0x12, 0x52, 0x0a, 0x0b, 0x70,
+	0x69, 0x6e, 0x67, 0x5f, 0x63, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x18, 0x03, 0x20, 0x01, 0x28, 0x0b,
+	0x32, 0x31, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x72, 0x65, 0x2e, 0x61, 0x70, 0x70,
+	0x2e, 0x6f, 0x62, 0x73, 0x65, 0x72, 0x76, 0x61, 0x74, 0x6f, 0x72, 0x79, 0x2e, 0x62, 0x75, 0x72,
+	0x73, 0x74, 0x2e, 0x48, 0x65, 0x61, 0x6c, 0x74, 0x68, 0x50, 0x69, 0x6e, 0x67, 0x43, 0x6f, 0x6e,
+	0x66, 0x69, 0x67, 0x52, 0x0a, 0x70, 0x69, 0x6e, 0x67, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x22,
+	0xb4, 0x01, 0x0a, 0x10, 0x48, 0x65, 0x61, 0x6c, 0x74, 0x68, 0x50, 0x69, 0x6e, 0x67, 0x43, 0x6f,
+	0x6e, 0x66, 0x69, 0x67, 0x12, 0x20, 0x0a, 0x0b, 0x64, 0x65, 0x73, 0x74, 0x69, 0x6e, 0x61, 0x74,
+	0x69, 0x6f, 0x6e, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0b, 0x64, 0x65, 0x73, 0x74, 0x69,
+	0x6e, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x12, 0x22, 0x0a, 0x0c, 0x63, 0x6f, 0x6e, 0x6e, 0x65, 0x63,
+	0x74, 0x69, 0x76, 0x69, 0x74, 0x79, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0c, 0x63, 0x6f,
+	0x6e, 0x6e, 0x65, 0x63, 0x74, 0x69, 0x76, 0x69, 0x74, 0x79, 0x12, 0x1a, 0x0a, 0x08, 0x69, 0x6e,
+	0x74, 0x65, 0x72, 0x76, 0x61, 0x6c, 0x18, 0x03, 0x20, 0x01, 0x28, 0x03, 0x52, 0x08, 0x69, 0x6e,
+	0x74, 0x65, 0x72, 0x76, 0x61, 0x6c, 0x12, 0x24, 0x0a, 0x0d, 0x73, 0x61, 0x6d, 0x70, 0x6c, 0x69,
+	0x6e, 0x67, 0x43, 0x6f, 0x75, 0x6e, 0x74, 0x18, 0x04, 0x20, 0x01, 0x28, 0x05, 0x52, 0x0d, 0x73,
+	0x61, 0x6d, 0x70, 0x6c, 0x69, 0x6e, 0x67, 0x43, 0x6f, 0x75, 0x6e, 0x74, 0x12, 0x18, 0x0a, 0x07,
+	0x74, 0x69, 0x6d, 0x65, 0x6f, 0x75, 0x74, 0x18, 0x05, 0x20, 0x01, 0x28, 0x03, 0x52, 0x07, 0x74,
+	0x69, 0x6d, 0x65, 0x6f, 0x75, 0x74, 0x42, 0x70, 0x0a, 0x1e, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72,
+	0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x6f, 0x62, 0x73, 0x65, 0x72, 0x76, 0x61, 0x74, 0x6f,
+	0x72, 0x79, 0x2e, 0x62, 0x75, 0x72, 0x73, 0x74, 0x50, 0x01, 0x5a, 0x2f, 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, 0x6f, 0x62, 0x73, 0x65, 0x72, 0x76,
+	0x61, 0x74, 0x6f, 0x72, 0x79, 0x2f, 0x62, 0x75, 0x72, 0x73, 0x74, 0xaa, 0x02, 0x1a, 0x58, 0x72,
+	0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x4f, 0x62, 0x73, 0x65, 0x72, 0x76, 0x61, 0x74, 0x6f,
+	0x72, 0x79, 0x2e, 0x42, 0x75, 0x72, 0x73, 0x74, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+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

@@ -0,0 +1,29 @@
+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

@@ -0,0 +1,254 @@
+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

@@ -0,0 +1,143 @@
+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

@@ -0,0 +1,106 @@
+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

@@ -0,0 +1,69 @@
+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 not 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

@@ -1,6 +1,3 @@
-//go:build !confonly
-// +build !confonly
-
 package command
 
 import (

app/observatory/command/command.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.28.1
-// 	protoc        v3.21.12
+// 	protoc-gen-go v1.35.1
+// 	protoc        v5.28.2
 // source: app/observatory/command/command.proto
 
 package command
@@ -29,11 +29,9 @@ type GetOutboundStatusRequest struct {
 
 func (x *GetOutboundStatusRequest) Reset() {
 	*x = GetOutboundStatusRequest{}
-	if protoimpl.UnsafeEnabled {
 	mi := &file_app_observatory_command_command_proto_msgTypes[0]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
-	}
 }
 
 func (x *GetOutboundStatusRequest) String() string {
@@ -44,7 +42,7 @@ func (*GetOutboundStatusRequest) ProtoMessage() {}
 
 func (x *GetOutboundStatusRequest) ProtoReflect() protoreflect.Message {
 	mi := &file_app_observatory_command_command_proto_msgTypes[0]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -69,11 +67,9 @@ type GetOutboundStatusResponse struct {
 
 func (x *GetOutboundStatusResponse) Reset() {
 	*x = GetOutboundStatusResponse{}
-	if protoimpl.UnsafeEnabled {
 	mi := &file_app_observatory_command_command_proto_msgTypes[1]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
-	}
 }
 
 func (x *GetOutboundStatusResponse) String() string {
@@ -84,7 +80,7 @@ func (*GetOutboundStatusResponse) ProtoMessage() {}
 
 func (x *GetOutboundStatusResponse) ProtoReflect() protoreflect.Message {
 	mi := &file_app_observatory_command_command_proto_msgTypes[1]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -114,11 +110,9 @@ type Config struct {
 
 func (x *Config) Reset() {
 	*x = Config{}
-	if protoimpl.UnsafeEnabled {
 	mi := &file_app_observatory_command_command_proto_msgTypes[2]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
-	}
 }
 
 func (x *Config) String() string {
@@ -129,7 +123,7 @@ func (*Config) ProtoMessage() {}
 
 func (x *Config) ProtoReflect() protoreflect.Message {
 	mi := &file_app_observatory_command_command_proto_msgTypes[2]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -197,7 +191,7 @@ func file_app_observatory_command_command_proto_rawDescGZIP() []byte {
 }
 
 var file_app_observatory_command_command_proto_msgTypes = make([]protoimpl.MessageInfo, 3)
-var file_app_observatory_command_command_proto_goTypes = []interface{}{
+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
@@ -219,44 +213,6 @@ func file_app_observatory_command_command_proto_init() {
 	if File_app_observatory_command_command_proto != nil {
 		return
 	}
-	if !protoimpl.UnsafeEnabled {
-		file_app_observatory_command_command_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*GetOutboundStatusRequest); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_app_observatory_command_command_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*GetOutboundStatusResponse); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_app_observatory_command_command_proto_msgTypes[2].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/observatory/command/command_grpc.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
 // versions:
-// - protoc-gen-go-grpc v1.2.0
-// - protoc             v3.21.12
+// - protoc-gen-go-grpc v1.5.1
+// - protoc             v5.28.2
 // source: app/observatory/command/command.proto
 
 package command
@@ -15,8 +15,12 @@ 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 v1.32.0 or later.
-const _ = grpc.SupportPackageIsVersion7
+// 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.
 //
@@ -34,8 +38,9 @@ func NewObservatoryServiceClient(cc grpc.ClientConnInterface) ObservatoryService
 }
 
 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, "/xray.core.app.observatory.command.ObservatoryService/GetOutboundStatus", in, out, opts...)
+	err := c.cc.Invoke(ctx, ObservatoryService_GetOutboundStatus_FullMethodName, in, out, cOpts...)
 	if err != nil {
 		return nil, err
 	}
@@ -44,20 +49,24 @@ func (c *observatoryServiceClient) GetOutboundStatus(ctx context.Context, in *Ge
 
 // ObservatoryServiceServer is the server API for ObservatoryService service.
 // All implementations must embed UnimplementedObservatoryServiceServer
-// for forward compatibility
+// for forward compatibility.
 type ObservatoryServiceServer interface {
 	GetOutboundStatus(context.Context, *GetOutboundStatusRequest) (*GetOutboundStatusResponse, error)
 	mustEmbedUnimplementedObservatoryServiceServer()
 }
 
-// UnimplementedObservatoryServiceServer must be embedded to have forward compatible implementations.
-type UnimplementedObservatoryServiceServer struct {
-}
+// 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
@@ -67,6 +76,13 @@ type UnsafeObservatoryServiceServer interface {
 }
 
 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)
 }
 
@@ -80,7 +96,7 @@ func _ObservatoryService_GetOutboundStatus_Handler(srv interface{}, ctx context.
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: "/xray.core.app.observatory.command.ObservatoryService/GetOutboundStatus",
+		FullMethod: ObservatoryService_GetOutboundStatus_FullMethodName,
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(ObservatoryServiceServer).GetOutboundStatus(ctx, req.(*GetOutboundStatusRequest))

app/observatory/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.28.1
-// 	protoc        v3.21.12
+// 	protoc-gen-go v1.35.1
+// 	protoc        v5.28.2
 // source: app/observatory/config.proto
 
 package observatory
@@ -30,11 +30,9 @@ type ObservationResult struct {
 
 func (x *ObservationResult) Reset() {
 	*x = ObservationResult{}
-	if protoimpl.UnsafeEnabled {
 	mi := &file_app_observatory_config_proto_msgTypes[0]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
-	}
 }
 
 func (x *ObservationResult) String() string {
@@ -45,7 +43,7 @@ func (*ObservationResult) ProtoMessage() {}
 
 func (x *ObservationResult) ProtoReflect() protoreflect.Message {
 	mi := &file_app_observatory_config_proto_msgTypes[0]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -67,6 +65,91 @@ func (x *ObservationResult) GetStatus() []*OutboundStatus {
 	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
@@ -91,15 +174,14 @@ type OutboundStatus struct {
 	// @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{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_app_observatory_config_proto_msgTypes[1]
+	mi := &file_app_observatory_config_proto_msgTypes[2]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
-	}
 }
 
 func (x *OutboundStatus) String() string {
@@ -109,8 +191,8 @@ func (x *OutboundStatus) String() string {
 func (*OutboundStatus) ProtoMessage() {}
 
 func (x *OutboundStatus) ProtoReflect() protoreflect.Message {
-	mi := &file_app_observatory_config_proto_msgTypes[1]
-	if protoimpl.UnsafeEnabled && x != nil {
+	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)
@@ -122,7 +204,7 @@ func (x *OutboundStatus) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use OutboundStatus.ProtoReflect.Descriptor instead.
 func (*OutboundStatus) Descriptor() ([]byte, []int) {
-	return file_app_observatory_config_proto_rawDescGZIP(), []int{1}
+	return file_app_observatory_config_proto_rawDescGZIP(), []int{2}
 }
 
 func (x *OutboundStatus) GetAlive() bool {
@@ -167,6 +249,13 @@ func (x *OutboundStatus) GetLastTryTime() int64 {
 	return 0
 }
 
+func (x *OutboundStatus) GetHealthPing() *HealthPingMeasurementResult {
+	if x != nil {
+		return x.HealthPing
+	}
+	return nil
+}
+
 type ProbeResult struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -186,11 +275,9 @@ type ProbeResult struct {
 
 func (x *ProbeResult) Reset() {
 	*x = ProbeResult{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_app_observatory_config_proto_msgTypes[2]
+	mi := &file_app_observatory_config_proto_msgTypes[3]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
-	}
 }
 
 func (x *ProbeResult) String() string {
@@ -200,8 +287,8 @@ func (x *ProbeResult) String() string {
 func (*ProbeResult) ProtoMessage() {}
 
 func (x *ProbeResult) ProtoReflect() protoreflect.Message {
-	mi := &file_app_observatory_config_proto_msgTypes[2]
-	if protoimpl.UnsafeEnabled && x != nil {
+	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)
@@ -213,7 +300,7 @@ func (x *ProbeResult) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ProbeResult.ProtoReflect.Descriptor instead.
 func (*ProbeResult) Descriptor() ([]byte, []int) {
-	return file_app_observatory_config_proto_rawDescGZIP(), []int{2}
+	return file_app_observatory_config_proto_rawDescGZIP(), []int{3}
 }
 
 func (x *ProbeResult) GetAlive() bool {
@@ -249,11 +336,9 @@ type Intensity struct {
 
 func (x *Intensity) Reset() {
 	*x = Intensity{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_app_observatory_config_proto_msgTypes[3]
+	mi := &file_app_observatory_config_proto_msgTypes[4]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
-	}
 }
 
 func (x *Intensity) String() string {
@@ -263,8 +348,8 @@ func (x *Intensity) String() string {
 func (*Intensity) ProtoMessage() {}
 
 func (x *Intensity) ProtoReflect() protoreflect.Message {
-	mi := &file_app_observatory_config_proto_msgTypes[3]
-	if protoimpl.UnsafeEnabled && x != nil {
+	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)
@@ -276,7 +361,7 @@ func (x *Intensity) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Intensity.ProtoReflect.Descriptor instead.
 func (*Intensity) Descriptor() ([]byte, []int) {
-	return file_app_observatory_config_proto_rawDescGZIP(), []int{3}
+	return file_app_observatory_config_proto_rawDescGZIP(), []int{4}
 }
 
 func (x *Intensity) GetProbeInterval() uint32 {
@@ -300,11 +385,9 @@ type Config struct {
 
 func (x *Config) Reset() {
 	*x = Config{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_app_observatory_config_proto_msgTypes[4]
+	mi := &file_app_observatory_config_proto_msgTypes[5]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
-	}
 }
 
 func (x *Config) String() string {
@@ -314,8 +397,8 @@ func (x *Config) String() string {
 func (*Config) ProtoMessage() {}
 
 func (x *Config) ProtoReflect() protoreflect.Message {
-	mi := &file_app_observatory_config_proto_msgTypes[4]
-	if protoimpl.UnsafeEnabled && x != nil {
+	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)
@@ -327,7 +410,7 @@ func (x *Config) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Config.ProtoReflect.Descriptor instead.
 func (*Config) Descriptor() ([]byte, []int) {
-	return file_app_observatory_config_proto_rawDescGZIP(), []int{4}
+	return file_app_observatory_config_proto_rawDescGZIP(), []int{5}
 }
 
 func (x *Config) GetSubjectSelector() []string {
@@ -370,47 +453,62 @@ var file_app_observatory_config_proto_rawDesc = []byte{
 	0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x72, 0x65, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x6f,
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+	0x65, 0x61, 0x6c, 0x74, 0x68, 0x5f, 0x70, 0x69, 0x6e, 0x67, 0x18, 0x07, 0x20, 0x01, 0x28, 0x0b,
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+	0x28, 0x08, 0x52, 0x05, 0x61, 0x6c, 0x69, 0x76, 0x65, 0x12, 0x14, 0x0a, 0x05, 0x64, 0x65, 0x6c,
+	0x61, 0x79, 0x18, 0x02, 0x20, 0x01, 0x28, 0x03, 0x52, 0x05, 0x64, 0x65, 0x6c, 0x61, 0x79, 0x12,
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+	0x6e, 0x74, 0x65, 0x6e, 0x73, 0x69, 0x74, 0x79, 0x12, 0x25, 0x0a, 0x0e, 0x70, 0x72, 0x6f, 0x62,
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+	0x65, 0x49, 0x6e, 0x74, 0x65, 0x72, 0x76, 0x61, 0x6c, 0x12, 0x2d, 0x0a, 0x12, 0x65, 0x6e, 0x61,
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+	0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x6f, 0x62, 0x73, 0x65, 0x72, 0x76, 0x61,
+	0x74, 0x6f, 0x72, 0x79, 0x50, 0x01, 0x5a, 0x29, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63,
+	0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72,
+	0x65, 0x2f, 0x61, 0x70, 0x70, 0x2f, 0x6f, 0x62, 0x73, 0x65, 0x72, 0x76, 0x61, 0x74, 0x6f, 0x72,
+	0x79, 0xaa, 0x02, 0x14, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x4f, 0x62, 0x73,
+	0x65, 0x72, 0x76, 0x61, 0x74, 0x6f, 0x72, 0x79, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -425,21 +523,23 @@ func file_app_observatory_config_proto_rawDescGZIP() []byte {
 	return file_app_observatory_config_proto_rawDescData
 }
 
-var file_app_observatory_config_proto_msgTypes = make([]protoimpl.MessageInfo, 5)
-var file_app_observatory_config_proto_goTypes = []interface{}{
+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
-	(*OutboundStatus)(nil),    // 1: xray.core.app.observatory.OutboundStatus
-	(*ProbeResult)(nil),       // 2: xray.core.app.observatory.ProbeResult
-	(*Intensity)(nil),         // 3: xray.core.app.observatory.Intensity
-	(*Config)(nil),            // 4: xray.core.app.observatory.Config
+	(*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{
-	1, // 0: xray.core.app.observatory.ObservationResult.status:type_name -> xray.core.app.observatory.OutboundStatus
-	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
+	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() }
@@ -447,75 +547,13 @@ func file_app_observatory_config_proto_init() {
 	if File_app_observatory_config_proto != nil {
 		return
 	}
-	if !protoimpl.UnsafeEnabled {
-		file_app_observatory_config_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*ObservationResult); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_app_observatory_config_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*OutboundStatus); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_app_observatory_config_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*ProbeResult); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_app_observatory_config_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*Intensity); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_app_observatory_config_proto_msgTypes[4].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{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_app_observatory_config_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   5,
+			NumMessages:   6,
 			NumExtensions: 0,
 			NumServices:   0,
 		},

app/observatory/config.proto

@@ -10,6 +10,15 @@ 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
@@ -36,6 +45,8 @@ message OutboundStatus{
    @Type id.outboundTag
 */
   int64 last_try_time = 6;
+
+  HealthPingMeasurementResult health_ping = 7;
 }
 
 message ProbeResult{

app/observatory/errors.generated.go

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

app/observatory/explainErrors.go

@@ -8,10 +8,10 @@ type errorCollector struct {
 
 func (e *errorCollector) SubmitError(err error) {
 	if e.errors == nil {
-		e.errors = newError("underlying connection error").Base(err)
+		e.errors = errors.New("underlying connection error").Base(err)
 		return
 	}
-	e.errors = e.errors.Base(newError("underlying connection error").Base(err))
+	e.errors = e.errors.Base(errors.New("underlying connection error").Base(err))
 }
 
 func newErrorCollector() *errorCollector {
@@ -20,7 +20,7 @@ func newErrorCollector() *errorCollector {
 
 func (e *errorCollector) UnderlyingError() error {
 	if e.errors == nil {
-		return newError("failed to produce report")
+		return errors.New("failed to produce report")
 	}
 	return e.errors
 }

app/observatory/observatory.go

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

app/observatory/observer.go

@@ -9,8 +9,8 @@ import (
 	"sync"
 	"time"
 
-	"github.com/golang/protobuf/proto"
 	"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"
@@ -19,6 +19,7 @@ import (
 	"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 {
@@ -60,7 +61,7 @@ func (o *Observer) background() {
 	for !o.finished.Done() {
 		hs, ok := o.ohm.(outbound.HandlerSelector)
 		if !ok {
-			newError("outbound.Manager is not a HandlerSelector").WriteToLog()
+			errors.LogInfo(o.ctx, "outbound.Manager is not a HandlerSelector")
 			return
 		}
 
@@ -127,18 +128,18 @@ func (o *Observer) probe(outbound string) ProbeResult {
 				// MUST use Xray's built in context system
 				dest, err := v2net.ParseDestination(network + ":" + addr)
 				if err != nil {
-					return newError("cannot understand address").Base(err)
+					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 newError("cannot dial remote address ", dest).Base(err)
+					return errors.New("cannot dial remote address ", dest).Base(err)
 				}
 				connection = conn
 				return nil
 			})
 			if taskErr != nil {
-				return nil, newError("cannot finish connection").Base(taskErr)
+				return nil, errors.New("cannot finish connection").Base(taskErr)
 			}
 			return connection, nil
 		},
@@ -161,7 +162,7 @@ func (o *Observer) probe(outbound string) ProbeResult {
 		}
 		response, err := httpClient.Get(probeURL)
 		if err != nil {
-			return newError("outbound failed to relay connection").Base(err)
+			return errors.New("outbound failed to relay connection").Base(err)
 		}
 		if response.Body != nil {
 			response.Body.Close()
@@ -171,15 +172,11 @@ func (o *Observer) probe(outbound string) ProbeResult {
 		return nil
 	})
 	if err != nil {
-		fullerr := newError("underlying connection failed").Base(errorCollectorForRequest.UnderlyingError())
-		fullerr = newError("with outbound handler report").Base(fullerr)
-		fullerr = newError("GET request failed:", err).Base(fullerr)
-		fullerr = newError("the outbound ", outbound, " is dead:").Base(fullerr)
-		fullerr = fullerr.AtInfo()
-		fullerr.WriteToLog()
-		return ProbeResult{Alive: false, LastErrorReason: fullerr.Error()}
+		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}
 	}
-	newError("the outbound ", outbound, " is alive:", GETTime.Seconds()).AtInfo().WriteToLog()
+	errors.LogInfo(o.ctx, "the outbound ", outbound, " is alive:", GETTime.Seconds())
 	return ProbeResult{Alive: true, Delay: GETTime.Milliseconds()}
 }
 
@@ -222,7 +219,7 @@ func New(ctx context.Context, config *Config) (*Observer, error) {
 		outboundManager = om
 	})
 	if err != nil {
-		return nil, newError("Cannot get depended features").Base(err)
+		return nil, errors.New("Cannot get depended features").Base(err)
 	}
 	return &Observer{
 		config: config,

app/policy/config.go

@@ -73,6 +73,7 @@ func (p *Policy) ToCorePolicy() policy.Session {
 	if p.Stats != nil {
 		cp.Stats.UserUplink = p.Stats.UserUplink
 		cp.Stats.UserDownlink = p.Stats.UserDownlink
+		cp.Stats.UserOnline = p.Stats.UserOnline
 	}
 	if p.Buffer != nil {
 		cp.Buffer.PerConnection = p.Buffer.Connection

app/policy/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.28.1
-// 	protoc        v3.21.12
+// 	protoc-gen-go v1.35.1
+// 	protoc        v5.28.2
 // source: app/policy/config.proto
 
 package policy
@@ -30,11 +30,9 @@ 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 {
@@ -45,7 +43,7 @@ func (*Second) ProtoMessage() {}
 
 func (x *Second) ProtoReflect() protoreflect.Message {
 	mi := &file_app_policy_config_proto_msgTypes[0]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -79,11 +77,9 @@ 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 {
@@ -94,7 +90,7 @@ func (*Policy) ProtoMessage() {}
 
 func (x *Policy) ProtoReflect() protoreflect.Message {
 	mi := &file_app_policy_config_proto_msgTypes[1]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -140,11 +136,9 @@ 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 {
@@ -155,7 +149,7 @@ func (*SystemPolicy) ProtoMessage() {}
 
 func (x *SystemPolicy) ProtoReflect() protoreflect.Message {
 	mi := &file_app_policy_config_proto_msgTypes[2]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -188,11 +182,9 @@ 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 {
@@ -203,7 +195,7 @@ func (*Config) ProtoMessage() {}
 
 func (x *Config) ProtoReflect() protoreflect.Message {
 	mi := &file_app_policy_config_proto_msgTypes[3]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -246,11 +238,9 @@ 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 {
@@ -261,7 +251,7 @@ func (*Policy_Timeout) ProtoMessage() {}
 
 func (x *Policy_Timeout) ProtoReflect() protoreflect.Message {
 	mi := &file_app_policy_config_proto_msgTypes[4]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -311,15 +301,14 @@ type Policy_Stats struct {
 
 	UserUplink   bool `protobuf:"varint,1,opt,name=user_uplink,json=userUplink,proto3" json:"user_uplink,omitempty"`
 	UserDownlink bool `protobuf:"varint,2,opt,name=user_downlink,json=userDownlink,proto3" json:"user_downlink,omitempty"`
+	UserOnline   bool `protobuf:"varint,3,opt,name=user_online,json=userOnline,proto3" json:"user_online,omitempty"`
 }
 
 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 {
@@ -330,7 +319,7 @@ func (*Policy_Stats) ProtoMessage() {}
 
 func (x *Policy_Stats) ProtoReflect() protoreflect.Message {
 	mi := &file_app_policy_config_proto_msgTypes[5]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -359,6 +348,13 @@ func (x *Policy_Stats) GetUserDownlink() bool {
 	return false
 }
 
+func (x *Policy_Stats) GetUserOnline() bool {
+	if x != nil {
+		return x.UserOnline
+	}
+	return false
+}
+
 type Policy_Buffer struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -370,11 +366,9 @@ 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 {
@@ -385,7 +379,7 @@ func (*Policy_Buffer) ProtoMessage() {}
 
 func (x *Policy_Buffer) ProtoReflect() protoreflect.Message {
 	mi := &file_app_policy_config_proto_msgTypes[6]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -420,11 +414,9 @@ 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 {
@@ -435,7 +427,7 @@ func (*SystemPolicy_Stats) ProtoMessage() {}
 
 func (x *SystemPolicy_Stats) ProtoReflect() protoreflect.Message {
 	mi := &file_app_policy_config_proto_msgTypes[7]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -485,7 +477,7 @@ var file_app_policy_config_proto_rawDesc = []byte{
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@@ -512,49 +504,51 @@ var file_app_policy_config_proto_rawDesc = []byte{
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 }
 
 var (
@@ -570,7 +564,7 @@ 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 = []interface{}{
+var file_app_policy_config_proto_goTypes = []any{
 	(*Second)(nil),             // 0: xray.app.policy.Second
 	(*Policy)(nil),             // 1: xray.app.policy.Policy
 	(*SystemPolicy)(nil),       // 2: xray.app.policy.SystemPolicy
@@ -605,104 +599,6 @@ 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/config.proto

@@ -22,6 +22,7 @@ message Policy {
   message Stats {
     bool user_uplink = 1;
     bool user_downlink = 2;
+    bool user_online = 3;
   }
 
   message Buffer {

app/policy/errors.generated.go

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

@@ -1,4 +1,2 @@
 // 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

@@ -4,6 +4,8 @@ import (
 	"context"
 
 	"github.com/xtls/xray-core/common"
+	"github.com/xtls/xray-core/common/errors"
+	"github.com/xtls/xray-core/common/protocol"
 	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/inbound"
 	"github.com/xtls/xray-core/features/outbound"
@@ -26,7 +28,7 @@ type OutboundOperation interface {
 func getInbound(handler inbound.Handler) (proxy.Inbound, error) {
 	gi, ok := handler.(proxy.GetInbound)
 	if !ok {
-		return nil, newError("can't get inbound proxy from handler.")
+		return nil, errors.New("can't get inbound proxy from handler.")
 	}
 	return gi.GetInbound(), nil
 }
@@ -39,11 +41,11 @@ func (op *AddUserOperation) ApplyInbound(ctx context.Context, handler inbound.Ha
 	}
 	um, ok := p.(proxy.UserManager)
 	if !ok {
-		return newError("proxy is not a UserManager")
+		return errors.New("proxy is not a UserManager")
 	}
 	mUser, err := op.User.ToMemoryUser()
 	if err != nil {
-		return newError("failed to parse user").Base(err)
+		return errors.New("failed to parse user").Base(err)
 	}
 	return um.AddUser(ctx, mUser)
 }
@@ -56,7 +58,7 @@ func (op *RemoveUserOperation) ApplyInbound(ctx context.Context, handler inbound
 	}
 	um, ok := p.(proxy.UserManager)
 	if !ok {
-		return newError("proxy is not a UserManager")
+		return errors.New("proxy is not a UserManager")
 	}
 	return um.RemoveUser(ctx, op.Email)
 }
@@ -82,21 +84,61 @@ 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, newError("unknown operation").Base(err)
+		return nil, errors.New("unknown operation").Base(err)
 	}
 	operation, ok := rawOperation.(InboundOperation)
 	if !ok {
-		return nil, newError("not an inbound operation")
+		return nil, errors.New("not an inbound operation")
 	}
 
 	handler, err := s.ihm.GetHandler(ctx, request.Tag)
 	if err != nil {
-		return nil, newError("failed to get handler: ", request.Tag).Base(err)
+		return nil, errors.New("failed to get handler: ", request.Tag).Base(err)
 	}
 
 	return &AlterInboundResponse{}, operation.ApplyInbound(ctx, handler)
 }
 
+func (s *handlerServer) GetInboundUsers(ctx context.Context, request *GetInboundUserRequest) (*GetInboundUserResponse, error) {
+	handler, err := s.ihm.GetHandler(ctx, request.Tag)
+	if err != nil {
+		return nil, errors.New("failed to get handler: ", request.Tag).Base(err)
+	}
+	p, err := getInbound(handler)
+	if err != nil {
+		return nil, err
+	}
+	um, ok := p.(proxy.UserManager)
+	if !ok {
+		return nil, errors.New("proxy is not a UserManager")
+	}
+	if len(request.Email) > 0 {
+		return &GetInboundUserResponse{Users: []*protocol.User{protocol.ToProtoUser(um.GetUser(ctx, request.Email))}}, nil
+	}
+	var result = make([]*protocol.User, 0, 100)
+	users := um.GetUsers(ctx)
+	for _, u := range users {
+		result = append(result, protocol.ToProtoUser(u))
+	}
+	return &GetInboundUserResponse{Users: result}, nil
+}
+
+func (s *handlerServer) GetInboundUsersCount(ctx context.Context, request *GetInboundUserRequest) (*GetInboundUsersCountResponse, error) {
+	handler, err := s.ihm.GetHandler(ctx, request.Tag)
+	if err != nil {
+		return nil, errors.New("failed to get handler: ", request.Tag).Base(err)
+	}
+	p, err := getInbound(handler)
+	if err != nil {
+		return nil, err
+	}
+	um, ok := p.(proxy.UserManager)
+	if !ok {
+		return nil, errors.New("proxy is not a UserManager")
+	}
+	return &GetInboundUsersCountResponse{Count: um.GetUsersCount(ctx)}, nil
+}
+
 func (s *handlerServer) AddOutbound(ctx context.Context, request *AddOutboundRequest) (*AddOutboundResponse, error) {
 	if err := core.AddOutboundHandler(s.s, request.Outbound); err != nil {
 		return nil, err
@@ -111,11 +153,11 @@ 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, newError("unknown operation").Base(err)
+		return nil, errors.New("unknown operation").Base(err)
 	}
 	operation, ok := rawOperation.(OutboundOperation)
 	if !ok {
-		return nil, newError("not an outbound operation")
+		return nil, errors.New("not an outbound operation")
 	}
 
 	handler := s.ohm.GetHandler(request.Tag)

app/proxyman/command/command.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.28.1
-// 	protoc        v3.21.12
+// 	protoc-gen-go v1.35.1
+// 	protoc        v5.28.2
 // source: app/proxyman/command/command.proto
 
 package command
@@ -33,11 +33,9 @@ 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 {
@@ -48,7 +46,7 @@ func (*AddUserOperation) ProtoMessage() {}
 
 func (x *AddUserOperation) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_command_command_proto_msgTypes[0]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -80,11 +78,9 @@ 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 {
@@ -95,7 +91,7 @@ func (*RemoveUserOperation) ProtoMessage() {}
 
 func (x *RemoveUserOperation) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_command_command_proto_msgTypes[1]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -127,11 +123,9 @@ 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 {
@@ -142,7 +136,7 @@ func (*AddInboundRequest) ProtoMessage() {}
 
 func (x *AddInboundRequest) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_command_command_proto_msgTypes[2]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -172,11 +166,9 @@ 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 {
@@ -187,7 +179,7 @@ func (*AddInboundResponse) ProtoMessage() {}
 
 func (x *AddInboundResponse) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_command_command_proto_msgTypes[3]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -212,11 +204,9 @@ 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 {
@@ -227,7 +217,7 @@ func (*RemoveInboundRequest) ProtoMessage() {}
 
 func (x *RemoveInboundRequest) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_command_command_proto_msgTypes[4]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -257,11 +247,9 @@ 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 {
@@ -272,7 +260,7 @@ func (*RemoveInboundResponse) ProtoMessage() {}
 
 func (x *RemoveInboundResponse) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_command_command_proto_msgTypes[5]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -298,11 +286,9 @@ 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 {
@@ -313,7 +299,7 @@ func (*AlterInboundRequest) ProtoMessage() {}
 
 func (x *AlterInboundRequest) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_command_command_proto_msgTypes[6]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -350,11 +336,9 @@ 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 {
@@ -365,7 +349,7 @@ func (*AlterInboundResponse) ProtoMessage() {}
 
 func (x *AlterInboundResponse) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_command_command_proto_msgTypes[7]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -380,6 +364,149 @@ func (*AlterInboundResponse) Descriptor() ([]byte, []int) {
 	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{7}
 }
 
+type GetInboundUserRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Tag   string `protobuf:"bytes,1,opt,name=tag,proto3" json:"tag,omitempty"`
+	Email string `protobuf:"bytes,2,opt,name=email,proto3" json:"email,omitempty"`
+}
+
+func (x *GetInboundUserRequest) Reset() {
+	*x = GetInboundUserRequest{}
+	mi := &file_app_proxyman_command_command_proto_msgTypes[8]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *GetInboundUserRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GetInboundUserRequest) ProtoMessage() {}
+
+func (x *GetInboundUserRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_app_proxyman_command_command_proto_msgTypes[8]
+	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 GetInboundUserRequest.ProtoReflect.Descriptor instead.
+func (*GetInboundUserRequest) Descriptor() ([]byte, []int) {
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{8}
+}
+
+func (x *GetInboundUserRequest) GetTag() string {
+	if x != nil {
+		return x.Tag
+	}
+	return ""
+}
+
+func (x *GetInboundUserRequest) GetEmail() string {
+	if x != nil {
+		return x.Email
+	}
+	return ""
+}
+
+type GetInboundUserResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Users []*protocol.User `protobuf:"bytes,1,rep,name=users,proto3" json:"users,omitempty"`
+}
+
+func (x *GetInboundUserResponse) Reset() {
+	*x = GetInboundUserResponse{}
+	mi := &file_app_proxyman_command_command_proto_msgTypes[9]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *GetInboundUserResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GetInboundUserResponse) ProtoMessage() {}
+
+func (x *GetInboundUserResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_app_proxyman_command_command_proto_msgTypes[9]
+	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 GetInboundUserResponse.ProtoReflect.Descriptor instead.
+func (*GetInboundUserResponse) Descriptor() ([]byte, []int) {
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{9}
+}
+
+func (x *GetInboundUserResponse) GetUsers() []*protocol.User {
+	if x != nil {
+		return x.Users
+	}
+	return nil
+}
+
+type GetInboundUsersCountResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Count int64 `protobuf:"varint,1,opt,name=count,proto3" json:"count,omitempty"`
+}
+
+func (x *GetInboundUsersCountResponse) Reset() {
+	*x = GetInboundUsersCountResponse{}
+	mi := &file_app_proxyman_command_command_proto_msgTypes[10]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *GetInboundUsersCountResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GetInboundUsersCountResponse) ProtoMessage() {}
+
+func (x *GetInboundUsersCountResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_app_proxyman_command_command_proto_msgTypes[10]
+	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 GetInboundUsersCountResponse.ProtoReflect.Descriptor instead.
+func (*GetInboundUsersCountResponse) Descriptor() ([]byte, []int) {
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{10}
+}
+
+func (x *GetInboundUsersCountResponse) GetCount() int64 {
+	if x != nil {
+		return x.Count
+	}
+	return 0
+}
+
 type AddOutboundRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -390,11 +517,9 @@ type AddOutboundRequest struct {
 
 func (x *AddOutboundRequest) Reset() {
 	*x = AddOutboundRequest{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_app_proxyman_command_command_proto_msgTypes[8]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[11]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
-	}
 }
 
 func (x *AddOutboundRequest) String() string {
@@ -404,8 +529,8 @@ func (x *AddOutboundRequest) String() string {
 func (*AddOutboundRequest) ProtoMessage() {}
 
 func (x *AddOutboundRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[8]
-	if protoimpl.UnsafeEnabled && x != nil {
+	mi := &file_app_proxyman_command_command_proto_msgTypes[11]
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -417,7 +542,7 @@ func (x *AddOutboundRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use AddOutboundRequest.ProtoReflect.Descriptor instead.
 func (*AddOutboundRequest) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{8}
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{11}
 }
 
 func (x *AddOutboundRequest) GetOutbound() *core.OutboundHandlerConfig {
@@ -435,11 +560,9 @@ type AddOutboundResponse struct {
 
 func (x *AddOutboundResponse) Reset() {
 	*x = AddOutboundResponse{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_app_proxyman_command_command_proto_msgTypes[9]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[12]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
-	}
 }
 
 func (x *AddOutboundResponse) String() string {
@@ -449,8 +572,8 @@ func (x *AddOutboundResponse) String() string {
 func (*AddOutboundResponse) ProtoMessage() {}
 
 func (x *AddOutboundResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[9]
-	if protoimpl.UnsafeEnabled && x != nil {
+	mi := &file_app_proxyman_command_command_proto_msgTypes[12]
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -462,7 +585,7 @@ func (x *AddOutboundResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use AddOutboundResponse.ProtoReflect.Descriptor instead.
 func (*AddOutboundResponse) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{9}
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{12}
 }
 
 type RemoveOutboundRequest struct {
@@ -475,11 +598,9 @@ type RemoveOutboundRequest struct {
 
 func (x *RemoveOutboundRequest) Reset() {
 	*x = RemoveOutboundRequest{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_app_proxyman_command_command_proto_msgTypes[10]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[13]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
-	}
 }
 
 func (x *RemoveOutboundRequest) String() string {
@@ -489,8 +610,8 @@ func (x *RemoveOutboundRequest) String() string {
 func (*RemoveOutboundRequest) ProtoMessage() {}
 
 func (x *RemoveOutboundRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[10]
-	if protoimpl.UnsafeEnabled && x != nil {
+	mi := &file_app_proxyman_command_command_proto_msgTypes[13]
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -502,7 +623,7 @@ func (x *RemoveOutboundRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use RemoveOutboundRequest.ProtoReflect.Descriptor instead.
 func (*RemoveOutboundRequest) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{10}
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{13}
 }
 
 func (x *RemoveOutboundRequest) GetTag() string {
@@ -520,11 +641,9 @@ type RemoveOutboundResponse struct {
 
 func (x *RemoveOutboundResponse) Reset() {
 	*x = RemoveOutboundResponse{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_app_proxyman_command_command_proto_msgTypes[11]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[14]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
-	}
 }
 
 func (x *RemoveOutboundResponse) String() string {
@@ -534,8 +653,8 @@ func (x *RemoveOutboundResponse) String() string {
 func (*RemoveOutboundResponse) ProtoMessage() {}
 
 func (x *RemoveOutboundResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[11]
-	if protoimpl.UnsafeEnabled && x != nil {
+	mi := &file_app_proxyman_command_command_proto_msgTypes[14]
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -547,7 +666,7 @@ func (x *RemoveOutboundResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use RemoveOutboundResponse.ProtoReflect.Descriptor instead.
 func (*RemoveOutboundResponse) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{11}
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{14}
 }
 
 type AlterOutboundRequest struct {
@@ -561,11 +680,9 @@ type AlterOutboundRequest struct {
 
 func (x *AlterOutboundRequest) Reset() {
 	*x = AlterOutboundRequest{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_app_proxyman_command_command_proto_msgTypes[12]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[15]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
-	}
 }
 
 func (x *AlterOutboundRequest) String() string {
@@ -575,8 +692,8 @@ func (x *AlterOutboundRequest) String() string {
 func (*AlterOutboundRequest) ProtoMessage() {}
 
 func (x *AlterOutboundRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[12]
-	if protoimpl.UnsafeEnabled && x != nil {
+	mi := &file_app_proxyman_command_command_proto_msgTypes[15]
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -588,7 +705,7 @@ func (x *AlterOutboundRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use AlterOutboundRequest.ProtoReflect.Descriptor instead.
 func (*AlterOutboundRequest) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{12}
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{15}
 }
 
 func (x *AlterOutboundRequest) GetTag() string {
@@ -613,11 +730,9 @@ type AlterOutboundResponse struct {
 
 func (x *AlterOutboundResponse) Reset() {
 	*x = AlterOutboundResponse{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_app_proxyman_command_command_proto_msgTypes[13]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[16]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
-	}
 }
 
 func (x *AlterOutboundResponse) String() string {
@@ -627,8 +742,8 @@ func (x *AlterOutboundResponse) String() string {
 func (*AlterOutboundResponse) ProtoMessage() {}
 
 func (x *AlterOutboundResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[13]
-	if protoimpl.UnsafeEnabled && x != nil {
+	mi := &file_app_proxyman_command_command_proto_msgTypes[16]
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -640,7 +755,7 @@ func (x *AlterOutboundResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use AlterOutboundResponse.ProtoReflect.Descriptor instead.
 func (*AlterOutboundResponse) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{13}
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{16}
 }
 
 type Config struct {
@@ -651,11 +766,9 @@ type Config struct {
 
 func (x *Config) Reset() {
 	*x = Config{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_app_proxyman_command_command_proto_msgTypes[14]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[17]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
-	}
 }
 
 func (x *Config) String() string {
@@ -665,8 +778,8 @@ func (x *Config) String() string {
 func (*Config) ProtoMessage() {}
 
 func (x *Config) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[14]
-	if protoimpl.UnsafeEnabled && x != nil {
+	mi := &file_app_proxyman_command_command_proto_msgTypes[17]
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -678,7 +791,7 @@ func (x *Config) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Config.ProtoReflect.Descriptor instead.
 func (*Config) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{14}
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{17}
 }
 
 var File_app_proxyman_command_command_proto protoreflect.FileDescriptor
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 }
 
 var (
@@ -805,8 +946,8 @@ func file_app_proxyman_command_command_proto_rawDescGZIP() []byte {
 	return file_app_proxyman_command_command_proto_rawDescData
 }
 
-var file_app_proxyman_command_command_proto_msgTypes = make([]protoimpl.MessageInfo, 15)
-var file_app_proxyman_command_command_proto_goTypes = []interface{}{
+var file_app_proxyman_command_command_proto_msgTypes = make([]protoimpl.MessageInfo, 18)
+var file_app_proxyman_command_command_proto_goTypes = []any{
 	(*AddUserOperation)(nil),             // 0: xray.app.proxyman.command.AddUserOperation
 	(*RemoveUserOperation)(nil),          // 1: xray.app.proxyman.command.RemoveUserOperation
 	(*AddInboundRequest)(nil),            // 2: xray.app.proxyman.command.AddInboundRequest
@@ -815,41 +956,49 @@ var file_app_proxyman_command_command_proto_goTypes = []interface{}{
 	(*RemoveInboundResponse)(nil),        // 5: xray.app.proxyman.command.RemoveInboundResponse
 	(*AlterInboundRequest)(nil),          // 6: xray.app.proxyman.command.AlterInboundRequest
 	(*AlterInboundResponse)(nil),         // 7: xray.app.proxyman.command.AlterInboundResponse
-	(*AddOutboundRequest)(nil),         // 8: xray.app.proxyman.command.AddOutboundRequest
-	(*AddOutboundResponse)(nil),        // 9: xray.app.proxyman.command.AddOutboundResponse
-	(*RemoveOutboundRequest)(nil),      // 10: xray.app.proxyman.command.RemoveOutboundRequest
-	(*RemoveOutboundResponse)(nil),     // 11: xray.app.proxyman.command.RemoveOutboundResponse
-	(*AlterOutboundRequest)(nil),       // 12: xray.app.proxyman.command.AlterOutboundRequest
-	(*AlterOutboundResponse)(nil),      // 13: xray.app.proxyman.command.AlterOutboundResponse
-	(*Config)(nil),                     // 14: xray.app.proxyman.command.Config
-	(*protocol.User)(nil),              // 15: xray.common.protocol.User
-	(*core.InboundHandlerConfig)(nil),  // 16: xray.core.InboundHandlerConfig
-	(*serial.TypedMessage)(nil),        // 17: xray.common.serial.TypedMessage
-	(*core.OutboundHandlerConfig)(nil), // 18: xray.core.OutboundHandlerConfig
+	(*GetInboundUserRequest)(nil),        // 8: xray.app.proxyman.command.GetInboundUserRequest
+	(*GetInboundUserResponse)(nil),       // 9: xray.app.proxyman.command.GetInboundUserResponse
+	(*GetInboundUsersCountResponse)(nil), // 10: xray.app.proxyman.command.GetInboundUsersCountResponse
+	(*AddOutboundRequest)(nil),           // 11: xray.app.proxyman.command.AddOutboundRequest
+	(*AddOutboundResponse)(nil),          // 12: xray.app.proxyman.command.AddOutboundResponse
+	(*RemoveOutboundRequest)(nil),        // 13: xray.app.proxyman.command.RemoveOutboundRequest
+	(*RemoveOutboundResponse)(nil),       // 14: xray.app.proxyman.command.RemoveOutboundResponse
+	(*AlterOutboundRequest)(nil),         // 15: xray.app.proxyman.command.AlterOutboundRequest
+	(*AlterOutboundResponse)(nil),        // 16: xray.app.proxyman.command.AlterOutboundResponse
+	(*Config)(nil),                       // 17: xray.app.proxyman.command.Config
+	(*protocol.User)(nil),                // 18: xray.common.protocol.User
+	(*core.InboundHandlerConfig)(nil),    // 19: xray.core.InboundHandlerConfig
+	(*serial.TypedMessage)(nil),          // 20: xray.common.serial.TypedMessage
+	(*core.OutboundHandlerConfig)(nil),   // 21: xray.core.OutboundHandlerConfig
 }
 var file_app_proxyman_command_command_proto_depIdxs = []int32{
-	15, // 0: xray.app.proxyman.command.AddUserOperation.user:type_name -> xray.common.protocol.User
-	16, // 1: xray.app.proxyman.command.AddInboundRequest.inbound:type_name -> xray.core.InboundHandlerConfig
-	17, // 2: xray.app.proxyman.command.AlterInboundRequest.operation:type_name -> xray.common.serial.TypedMessage
-	18, // 3: xray.app.proxyman.command.AddOutboundRequest.outbound:type_name -> xray.core.OutboundHandlerConfig
-	17, // 4: xray.app.proxyman.command.AlterOutboundRequest.operation:type_name -> xray.common.serial.TypedMessage
-	2,  // 5: xray.app.proxyman.command.HandlerService.AddInbound:input_type -> xray.app.proxyman.command.AddInboundRequest
-	4,  // 6: xray.app.proxyman.command.HandlerService.RemoveInbound:input_type -> xray.app.proxyman.command.RemoveInboundRequest
-	6,  // 7: xray.app.proxyman.command.HandlerService.AlterInbound:input_type -> xray.app.proxyman.command.AlterInboundRequest
-	8,  // 8: xray.app.proxyman.command.HandlerService.AddOutbound:input_type -> xray.app.proxyman.command.AddOutboundRequest
-	10, // 9: xray.app.proxyman.command.HandlerService.RemoveOutbound:input_type -> xray.app.proxyman.command.RemoveOutboundRequest
-	12, // 10: xray.app.proxyman.command.HandlerService.AlterOutbound:input_type -> xray.app.proxyman.command.AlterOutboundRequest
-	3,  // 11: xray.app.proxyman.command.HandlerService.AddInbound:output_type -> xray.app.proxyman.command.AddInboundResponse
-	5,  // 12: xray.app.proxyman.command.HandlerService.RemoveInbound:output_type -> xray.app.proxyman.command.RemoveInboundResponse
-	7,  // 13: xray.app.proxyman.command.HandlerService.AlterInbound:output_type -> xray.app.proxyman.command.AlterInboundResponse
-	9,  // 14: xray.app.proxyman.command.HandlerService.AddOutbound:output_type -> xray.app.proxyman.command.AddOutboundResponse
-	11, // 15: xray.app.proxyman.command.HandlerService.RemoveOutbound:output_type -> xray.app.proxyman.command.RemoveOutboundResponse
-	13, // 16: xray.app.proxyman.command.HandlerService.AlterOutbound:output_type -> xray.app.proxyman.command.AlterOutboundResponse
-	11, // [11:17] is the sub-list for method output_type
-	5,  // [5:11] is the sub-list for method input_type
-	5,  // [5:5] is the sub-list for extension type_name
-	5,  // [5:5] is the sub-list for extension extendee
-	0,  // [0:5] is the sub-list for field type_name
+	18, // 0: xray.app.proxyman.command.AddUserOperation.user:type_name -> xray.common.protocol.User
+	19, // 1: xray.app.proxyman.command.AddInboundRequest.inbound:type_name -> xray.core.InboundHandlerConfig
+	20, // 2: xray.app.proxyman.command.AlterInboundRequest.operation:type_name -> xray.common.serial.TypedMessage
+	18, // 3: xray.app.proxyman.command.GetInboundUserResponse.users:type_name -> xray.common.protocol.User
+	21, // 4: xray.app.proxyman.command.AddOutboundRequest.outbound:type_name -> xray.core.OutboundHandlerConfig
+	20, // 5: xray.app.proxyman.command.AlterOutboundRequest.operation:type_name -> xray.common.serial.TypedMessage
+	2,  // 6: xray.app.proxyman.command.HandlerService.AddInbound:input_type -> xray.app.proxyman.command.AddInboundRequest
+	4,  // 7: xray.app.proxyman.command.HandlerService.RemoveInbound:input_type -> xray.app.proxyman.command.RemoveInboundRequest
+	6,  // 8: xray.app.proxyman.command.HandlerService.AlterInbound:input_type -> xray.app.proxyman.command.AlterInboundRequest
+	8,  // 9: xray.app.proxyman.command.HandlerService.GetInboundUsers:input_type -> xray.app.proxyman.command.GetInboundUserRequest
+	8,  // 10: xray.app.proxyman.command.HandlerService.GetInboundUsersCount:input_type -> xray.app.proxyman.command.GetInboundUserRequest
+	11, // 11: xray.app.proxyman.command.HandlerService.AddOutbound:input_type -> xray.app.proxyman.command.AddOutboundRequest
+	13, // 12: xray.app.proxyman.command.HandlerService.RemoveOutbound:input_type -> xray.app.proxyman.command.RemoveOutboundRequest
+	15, // 13: xray.app.proxyman.command.HandlerService.AlterOutbound:input_type -> xray.app.proxyman.command.AlterOutboundRequest
+	3,  // 14: xray.app.proxyman.command.HandlerService.AddInbound:output_type -> xray.app.proxyman.command.AddInboundResponse
+	5,  // 15: xray.app.proxyman.command.HandlerService.RemoveInbound:output_type -> xray.app.proxyman.command.RemoveInboundResponse
+	7,  // 16: xray.app.proxyman.command.HandlerService.AlterInbound:output_type -> xray.app.proxyman.command.AlterInboundResponse
+	9,  // 17: xray.app.proxyman.command.HandlerService.GetInboundUsers:output_type -> xray.app.proxyman.command.GetInboundUserResponse
+	10, // 18: xray.app.proxyman.command.HandlerService.GetInboundUsersCount:output_type -> xray.app.proxyman.command.GetInboundUsersCountResponse
+	12, // 19: xray.app.proxyman.command.HandlerService.AddOutbound:output_type -> xray.app.proxyman.command.AddOutboundResponse
+	14, // 20: xray.app.proxyman.command.HandlerService.RemoveOutbound:output_type -> xray.app.proxyman.command.RemoveOutboundResponse
+	16, // 21: xray.app.proxyman.command.HandlerService.AlterOutbound:output_type -> xray.app.proxyman.command.AlterOutboundResponse
+	14, // [14:22] is the sub-list for method output_type
+	6,  // [6:14] is the sub-list for method input_type
+	6,  // [6:6] is the sub-list for extension type_name
+	6,  // [6:6] is the sub-list for extension extendee
+	0,  // [0:6] is the sub-list for field type_name
 }
 
 func init() { file_app_proxyman_command_command_proto_init() }
@@ -857,195 +1006,13 @@ 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{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_app_proxyman_command_command_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   15,
+			NumMessages:   18,
 			NumExtensions: 0,
 			NumServices:   1,
 		},

app/proxyman/command/command.proto

@@ -37,6 +37,19 @@ message AlterInboundRequest {
 
 message AlterInboundResponse {}
 
+message GetInboundUserRequest {
+  string tag = 1;
+  string email = 2;
+}
+
+message GetInboundUserResponse {
+  repeated xray.common.protocol.User users = 1;
+}
+
+message GetInboundUsersCountResponse {
+  int64 count = 1;
+}
+
 message AddOutboundRequest {
   core.OutboundHandlerConfig outbound = 1;
 }
@@ -63,6 +76,10 @@ service HandlerService {
 
   rpc AlterInbound(AlterInboundRequest) returns (AlterInboundResponse) {}
 
+  rpc GetInboundUsers(GetInboundUserRequest) returns (GetInboundUserResponse) {}
+
+  rpc GetInboundUsersCount(GetInboundUserRequest) returns (GetInboundUsersCountResponse) {}
+
   rpc AddOutbound(AddOutboundRequest) returns (AddOutboundResponse) {}
 
   rpc RemoveOutbound(RemoveOutboundRequest) returns (RemoveOutboundResponse) {}

app/proxyman/command/command_grpc.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
 // versions:
-// - protoc-gen-go-grpc v1.2.0
-// - protoc             v3.21.12
+// - protoc-gen-go-grpc v1.5.1
+// - protoc             v5.28.2
 // source: app/proxyman/command/command.proto
 
 package command
@@ -15,8 +15,19 @@ 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 v1.32.0 or later.
-const _ = grpc.SupportPackageIsVersion7
+// Requires gRPC-Go v1.64.0 or later.
+const _ = grpc.SupportPackageIsVersion9
+
+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_GetInboundUsers_FullMethodName      = "/xray.app.proxyman.command.HandlerService/GetInboundUsers"
+	HandlerService_GetInboundUsersCount_FullMethodName = "/xray.app.proxyman.command.HandlerService/GetInboundUsersCount"
+	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.
 //
@@ -25,6 +36,8 @@ type HandlerServiceClient interface {
 	AddInbound(ctx context.Context, in *AddInboundRequest, opts ...grpc.CallOption) (*AddInboundResponse, error)
 	RemoveInbound(ctx context.Context, in *RemoveInboundRequest, opts ...grpc.CallOption) (*RemoveInboundResponse, error)
 	AlterInbound(ctx context.Context, in *AlterInboundRequest, opts ...grpc.CallOption) (*AlterInboundResponse, error)
+	GetInboundUsers(ctx context.Context, in *GetInboundUserRequest, opts ...grpc.CallOption) (*GetInboundUserResponse, error)
+	GetInboundUsersCount(ctx context.Context, in *GetInboundUserRequest, opts ...grpc.CallOption) (*GetInboundUsersCountResponse, error)
 	AddOutbound(ctx context.Context, in *AddOutboundRequest, opts ...grpc.CallOption) (*AddOutboundResponse, error)
 	RemoveOutbound(ctx context.Context, in *RemoveOutboundRequest, opts ...grpc.CallOption) (*RemoveOutboundResponse, error)
 	AlterOutbound(ctx context.Context, in *AlterOutboundRequest, opts ...grpc.CallOption) (*AlterOutboundResponse, error)
@@ -39,8 +52,9 @@ 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, "/xray.app.proxyman.command.HandlerService/AddInbound", in, out, opts...)
+	err := c.cc.Invoke(ctx, HandlerService_AddInbound_FullMethodName, in, out, cOpts...)
 	if err != nil {
 		return nil, err
 	}
@@ -48,8 +62,9 @@ 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, "/xray.app.proxyman.command.HandlerService/RemoveInbound", in, out, opts...)
+	err := c.cc.Invoke(ctx, HandlerService_RemoveInbound_FullMethodName, in, out, cOpts...)
 	if err != nil {
 		return nil, err
 	}
@@ -57,8 +72,29 @@ 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, "/xray.app.proxyman.command.HandlerService/AlterInbound", in, out, opts...)
+	err := c.cc.Invoke(ctx, HandlerService_AlterInbound_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *handlerServiceClient) GetInboundUsers(ctx context.Context, in *GetInboundUserRequest, opts ...grpc.CallOption) (*GetInboundUserResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(GetInboundUserResponse)
+	err := c.cc.Invoke(ctx, HandlerService_GetInboundUsers_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *handlerServiceClient) GetInboundUsersCount(ctx context.Context, in *GetInboundUserRequest, opts ...grpc.CallOption) (*GetInboundUsersCountResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(GetInboundUsersCountResponse)
+	err := c.cc.Invoke(ctx, HandlerService_GetInboundUsersCount_FullMethodName, in, out, cOpts...)
 	if err != nil {
 		return nil, err
 	}
@@ -66,8 +102,9 @@ 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, "/xray.app.proxyman.command.HandlerService/AddOutbound", in, out, opts...)
+	err := c.cc.Invoke(ctx, HandlerService_AddOutbound_FullMethodName, in, out, cOpts...)
 	if err != nil {
 		return nil, err
 	}
@@ -75,8 +112,9 @@ 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, "/xray.app.proxyman.command.HandlerService/RemoveOutbound", in, out, opts...)
+	err := c.cc.Invoke(ctx, HandlerService_RemoveOutbound_FullMethodName, in, out, cOpts...)
 	if err != nil {
 		return nil, err
 	}
@@ -84,8 +122,9 @@ 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, "/xray.app.proxyman.command.HandlerService/AlterOutbound", in, out, opts...)
+	err := c.cc.Invoke(ctx, HandlerService_AlterOutbound_FullMethodName, in, out, cOpts...)
 	if err != nil {
 		return nil, err
 	}
@@ -94,20 +133,25 @@ 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)
 	AlterInbound(context.Context, *AlterInboundRequest) (*AlterInboundResponse, error)
+	GetInboundUsers(context.Context, *GetInboundUserRequest) (*GetInboundUserResponse, error)
+	GetInboundUsersCount(context.Context, *GetInboundUserRequest) (*GetInboundUsersCountResponse, error)
 	AddOutbound(context.Context, *AddOutboundRequest) (*AddOutboundResponse, error)
 	RemoveOutbound(context.Context, *RemoveOutboundRequest) (*RemoveOutboundResponse, error)
 	AlterOutbound(context.Context, *AlterOutboundRequest) (*AlterOutboundResponse, error)
 	mustEmbedUnimplementedHandlerServiceServer()
 }
 
-// UnimplementedHandlerServiceServer must be embedded to have forward compatible implementations.
-type UnimplementedHandlerServiceServer struct {
-}
+// UnimplementedHandlerServiceServer 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 UnimplementedHandlerServiceServer struct{}
 
 func (UnimplementedHandlerServiceServer) AddInbound(context.Context, *AddInboundRequest) (*AddInboundResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method AddInbound not implemented")
@@ -118,6 +162,12 @@ func (UnimplementedHandlerServiceServer) RemoveInbound(context.Context, *RemoveI
 func (UnimplementedHandlerServiceServer) AlterInbound(context.Context, *AlterInboundRequest) (*AlterInboundResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method AlterInbound not implemented")
 }
+func (UnimplementedHandlerServiceServer) GetInboundUsers(context.Context, *GetInboundUserRequest) (*GetInboundUserResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method GetInboundUsers not implemented")
+}
+func (UnimplementedHandlerServiceServer) GetInboundUsersCount(context.Context, *GetInboundUserRequest) (*GetInboundUsersCountResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method GetInboundUsersCount not implemented")
+}
 func (UnimplementedHandlerServiceServer) AddOutbound(context.Context, *AddOutboundRequest) (*AddOutboundResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method AddOutbound not implemented")
 }
@@ -128,6 +178,7 @@ 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
@@ -137,6 +188,13 @@ 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)
 }
 
@@ -150,7 +208,7 @@ func _HandlerService_AddInbound_Handler(srv interface{}, ctx context.Context, de
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: "/xray.app.proxyman.command.HandlerService/AddInbound",
+		FullMethod: HandlerService_AddInbound_FullMethodName,
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(HandlerServiceServer).AddInbound(ctx, req.(*AddInboundRequest))
@@ -168,7 +226,7 @@ func _HandlerService_RemoveInbound_Handler(srv interface{}, ctx context.Context,
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: "/xray.app.proxyman.command.HandlerService/RemoveInbound",
+		FullMethod: HandlerService_RemoveInbound_FullMethodName,
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(HandlerServiceServer).RemoveInbound(ctx, req.(*RemoveInboundRequest))
@@ -186,7 +244,7 @@ func _HandlerService_AlterInbound_Handler(srv interface{}, ctx context.Context,
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: "/xray.app.proxyman.command.HandlerService/AlterInbound",
+		FullMethod: HandlerService_AlterInbound_FullMethodName,
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(HandlerServiceServer).AlterInbound(ctx, req.(*AlterInboundRequest))
@@ -194,6 +252,42 @@ func _HandlerService_AlterInbound_Handler(srv interface{}, ctx context.Context,
 	return interceptor(ctx, in, info, handler)
 }
 
+func _HandlerService_GetInboundUsers_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(GetInboundUserRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(HandlerServiceServer).GetInboundUsers(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: HandlerService_GetInboundUsers_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(HandlerServiceServer).GetInboundUsers(ctx, req.(*GetInboundUserRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _HandlerService_GetInboundUsersCount_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(GetInboundUserRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(HandlerServiceServer).GetInboundUsersCount(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: HandlerService_GetInboundUsersCount_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(HandlerServiceServer).GetInboundUsersCount(ctx, req.(*GetInboundUserRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 func _HandlerService_AddOutbound_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
 	in := new(AddOutboundRequest)
 	if err := dec(in); err != nil {
@@ -204,7 +298,7 @@ func _HandlerService_AddOutbound_Handler(srv interface{}, ctx context.Context, d
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: "/xray.app.proxyman.command.HandlerService/AddOutbound",
+		FullMethod: HandlerService_AddOutbound_FullMethodName,
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(HandlerServiceServer).AddOutbound(ctx, req.(*AddOutboundRequest))
@@ -222,7 +316,7 @@ func _HandlerService_RemoveOutbound_Handler(srv interface{}, ctx context.Context
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: "/xray.app.proxyman.command.HandlerService/RemoveOutbound",
+		FullMethod: HandlerService_RemoveOutbound_FullMethodName,
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(HandlerServiceServer).RemoveOutbound(ctx, req.(*RemoveOutboundRequest))
@@ -240,7 +334,7 @@ func _HandlerService_AlterOutbound_Handler(srv interface{}, ctx context.Context,
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: "/xray.app.proxyman.command.HandlerService/AlterOutbound",
+		FullMethod: HandlerService_AlterOutbound_FullMethodName,
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(HandlerServiceServer).AlterOutbound(ctx, req.(*AlterOutboundRequest))
@@ -267,6 +361,14 @@ var HandlerService_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "AlterInbound",
 			Handler:    _HandlerService_AlterInbound_Handler,
 		},
+		{
+			MethodName: "GetInboundUsers",
+			Handler:    _HandlerService_GetInboundUsers_Handler,
+		},
+		{
+			MethodName: "GetInboundUsersCount",
+			Handler:    _HandlerService_GetInboundUsersCount_Handler,
+		},
 		{
 			MethodName: "AddOutbound",
 			Handler:    _HandlerService_AddOutbound_Handler,

app/proxyman/command/doc.go

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

app/proxyman/command/errors.generated.go

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

@@ -19,21 +19,5 @@ 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

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.28.1
-// 	protoc        v3.21.12
+// 	protoc-gen-go v1.35.1
+// 	protoc        v5.28.2
 // source: app/proxyman/config.proto
 
 package proxyman
@@ -23,52 +23,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-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 (
@@ -105,11 +59,11 @@ func (x AllocationStrategy_Type) String() string {
 }
 
 func (AllocationStrategy_Type) Descriptor() protoreflect.EnumDescriptor {
-	return file_app_proxyman_config_proto_enumTypes[1].Descriptor()
+	return file_app_proxyman_config_proto_enumTypes[0].Descriptor()
 }
 
 func (AllocationStrategy_Type) Type() protoreflect.EnumType {
-	return &file_app_proxyman_config_proto_enumTypes[1]
+	return &file_app_proxyman_config_proto_enumTypes[0]
 }
 
 func (x AllocationStrategy_Type) Number() protoreflect.EnumNumber {
@@ -129,11 +83,9 @@ 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 {
@@ -144,7 +96,7 @@ func (*InboundConfig) ProtoMessage() {}
 
 func (x *InboundConfig) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_config_proto_msgTypes[0]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -175,11 +127,9 @@ 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 {
@@ -190,7 +140,7 @@ func (*AllocationStrategy) ProtoMessage() {}
 
 func (x *AllocationStrategy) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_config_proto_msgTypes[1]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -246,11 +196,9 @@ type SniffingConfig struct {
 
 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 {
@@ -261,7 +209,7 @@ func (*SniffingConfig) ProtoMessage() {}
 
 func (x *SniffingConfig) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_config_proto_msgTypes[2]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -323,21 +271,14 @@ type ReceiverConfig struct {
 	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"`
-	// 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"`
+	SniffingSettings           *SniffingConfig        `protobuf:"bytes,7,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 {
@@ -348,7 +289,7 @@ func (*ReceiverConfig) ProtoMessage() {}
 
 func (x *ReceiverConfig) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_config_proto_msgTypes[3]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -398,14 +339,6 @@ 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
@@ -425,11 +358,9 @@ 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 {
@@ -440,7 +371,7 @@ func (*InboundHandlerConfig) ProtoMessage() {}
 
 func (x *InboundHandlerConfig) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_config_proto_msgTypes[4]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -484,11 +415,9 @@ 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 {
@@ -499,7 +428,7 @@ func (*OutboundConfig) ProtoMessage() {}
 
 func (x *OutboundConfig) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_config_proto_msgTypes[5]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -524,15 +453,14 @@ 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 {
@@ -543,7 +471,7 @@ func (*SenderConfig) ProtoMessage() {}
 
 func (x *SenderConfig) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_config_proto_msgTypes[6]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -586,6 +514,13 @@ 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
@@ -594,16 +529,18 @@ 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 uint32 `protobuf:"varint,2,opt,name=concurrency,proto3" json:"concurrency,omitempty"`
+	Concurrency int32 `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 {
@@ -614,7 +551,7 @@ func (*MultiplexingConfig) ProtoMessage() {}
 
 func (x *MultiplexingConfig) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_config_proto_msgTypes[7]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -636,13 +573,27 @@ func (x *MultiplexingConfig) GetEnabled() bool {
 	return false
 }
 
-func (x *MultiplexingConfig) GetConcurrency() uint32 {
+func (x *MultiplexingConfig) GetConcurrency() int32 {
 	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
@@ -653,11 +604,9 @@ 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 {
@@ -668,7 +617,7 @@ func (*AllocationStrategy_AllocationStrategyConcurrency) ProtoMessage() {}
 
 func (x *AllocationStrategy_AllocationStrategyConcurrency) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_config_proto_msgTypes[8]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -700,11 +649,9 @@ 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 {
@@ -715,7 +662,7 @@ func (*AllocationStrategy_AllocationStrategyRefresh) ProtoMessage() {}
 
 func (x *AllocationStrategy_AllocationStrategyRefresh) ProtoReflect() protoreflect.Message {
 	mi := &file_app_proxyman_config_proto_msgTypes[9]
-	if protoimpl.UnsafeEnabled && x != nil {
+	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
 			ms.StoreMessageInfo(mi)
@@ -791,7 +738,7 @@ var file_app_proxyman_config_proto_rawDesc = []byte{
 	0x79, 0x18, 0x04, 0x20, 0x01, 0x28, 0x08, 0x52, 0x0c, 0x6d, 0x65, 0x74, 0x61, 0x64, 0x61, 0x74,
 	0x61, 0x4f, 0x6e, 0x6c, 0x79, 0x12, 0x1d, 0x0a, 0x0a, 0x72, 0x6f, 0x75, 0x74, 0x65, 0x5f, 0x6f,
 	0x6e, 0x6c, 0x79, 0x18, 0x05, 0x20, 0x01, 0x28, 0x08, 0x52, 0x09, 0x72, 0x6f, 0x75, 0x74, 0x65,
-	0x4f, 0x6e, 0x6c, 0x79, 0x22, 0x8d, 0x04, 0x0a, 0x0e, 0x52, 0x65, 0x63, 0x65, 0x69, 0x76, 0x65,
+	0x4f, 0x6e, 0x6c, 0x79, 0x22, 0xbd, 0x03, 0x0a, 0x0e, 0x52, 0x65, 0x63, 0x65, 0x69, 0x76, 0x65,
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@@ -814,13 +761,8 @@ var file_app_proxyman_config_proto_rawDesc = []byte{
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@@ -837,7 +779,7 @@ var file_app_proxyman_config_proto_rawDesc = []byte{
 	0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x73, 0x65, 0x72, 0x69, 0x61, 0x6c, 0x2e, 0x54, 0x79, 0x70, 0x65,
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@@ -856,21 +798,25 @@ var file_app_proxyman_config_proto_rawDesc = []byte{
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 }
 
 var (
@@ -885,48 +831,46 @@ 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, 2)
+var file_app_proxyman_config_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
 var file_app_proxyman_config_proto_msgTypes = make([]protoimpl.MessageInfo, 10)
-var file_app_proxyman_config_proto_goTypes = []interface{}{
-	(KnownProtocols)(0),                                      // 0: xray.app.proxyman.KnownProtocols
-	(AllocationStrategy_Type)(0),                             // 1: xray.app.proxyman.AllocationStrategy.Type
-	(*InboundConfig)(nil),                                    // 2: xray.app.proxyman.InboundConfig
-	(*AllocationStrategy)(nil),                               // 3: xray.app.proxyman.AllocationStrategy
-	(*SniffingConfig)(nil),                                   // 4: xray.app.proxyman.SniffingConfig
-	(*ReceiverConfig)(nil),                                   // 5: xray.app.proxyman.ReceiverConfig
-	(*InboundHandlerConfig)(nil),                             // 6: xray.app.proxyman.InboundHandlerConfig
-	(*OutboundConfig)(nil),                                   // 7: xray.app.proxyman.OutboundConfig
-	(*SenderConfig)(nil),                                     // 8: xray.app.proxyman.SenderConfig
-	(*MultiplexingConfig)(nil),                               // 9: xray.app.proxyman.MultiplexingConfig
-	(*AllocationStrategy_AllocationStrategyConcurrency)(nil), // 10: xray.app.proxyman.AllocationStrategy.AllocationStrategyConcurrency
-	(*AllocationStrategy_AllocationStrategyRefresh)(nil),     // 11: xray.app.proxyman.AllocationStrategy.AllocationStrategyRefresh
-	(*net.PortList)(nil),                                     // 12: xray.common.net.PortList
-	(*net.IPOrDomain)(nil),                                   // 13: xray.common.net.IPOrDomain
-	(*internet.StreamConfig)(nil),                            // 14: xray.transport.internet.StreamConfig
-	(*serial.TypedMessage)(nil),                              // 15: xray.common.serial.TypedMessage
-	(*internet.ProxyConfig)(nil),                             // 16: xray.transport.internet.ProxyConfig
+var file_app_proxyman_config_proto_goTypes = []any{
+	(AllocationStrategy_Type)(0),                             // 0: xray.app.proxyman.AllocationStrategy.Type
+	(*InboundConfig)(nil),                                    // 1: xray.app.proxyman.InboundConfig
+	(*AllocationStrategy)(nil),                               // 2: xray.app.proxyman.AllocationStrategy
+	(*SniffingConfig)(nil),                                   // 3: xray.app.proxyman.SniffingConfig
+	(*ReceiverConfig)(nil),                                   // 4: xray.app.proxyman.ReceiverConfig
+	(*InboundHandlerConfig)(nil),                             // 5: xray.app.proxyman.InboundHandlerConfig
+	(*OutboundConfig)(nil),                                   // 6: xray.app.proxyman.OutboundConfig
+	(*SenderConfig)(nil),                                     // 7: xray.app.proxyman.SenderConfig
+	(*MultiplexingConfig)(nil),                               // 8: xray.app.proxyman.MultiplexingConfig
+	(*AllocationStrategy_AllocationStrategyConcurrency)(nil), // 9: xray.app.proxyman.AllocationStrategy.AllocationStrategyConcurrency
+	(*AllocationStrategy_AllocationStrategyRefresh)(nil),     // 10: xray.app.proxyman.AllocationStrategy.AllocationStrategyRefresh
+	(*net.PortList)(nil),                                     // 11: xray.common.net.PortList
+	(*net.IPOrDomain)(nil),                                   // 12: xray.common.net.IPOrDomain
+	(*internet.StreamConfig)(nil),                            // 13: xray.transport.internet.StreamConfig
+	(*serial.TypedMessage)(nil),                              // 14: xray.common.serial.TypedMessage
+	(*internet.ProxyConfig)(nil),                             // 15: xray.transport.internet.ProxyConfig
 }
 var file_app_proxyman_config_proto_depIdxs = []int32{
-	1,  // 0: xray.app.proxyman.AllocationStrategy.type:type_name -> xray.app.proxyman.AllocationStrategy.Type
-	10, // 1: xray.app.proxyman.AllocationStrategy.concurrency:type_name -> xray.app.proxyman.AllocationStrategy.AllocationStrategyConcurrency
-	11, // 2: xray.app.proxyman.AllocationStrategy.refresh:type_name -> xray.app.proxyman.AllocationStrategy.AllocationStrategyRefresh
-	12, // 3: xray.app.proxyman.ReceiverConfig.port_list:type_name -> xray.common.net.PortList
-	13, // 4: xray.app.proxyman.ReceiverConfig.listen:type_name -> xray.common.net.IPOrDomain
-	3,  // 5: xray.app.proxyman.ReceiverConfig.allocation_strategy:type_name -> xray.app.proxyman.AllocationStrategy
-	14, // 6: xray.app.proxyman.ReceiverConfig.stream_settings:type_name -> xray.transport.internet.StreamConfig
-	0,  // 7: xray.app.proxyman.ReceiverConfig.domain_override:type_name -> xray.app.proxyman.KnownProtocols
-	4,  // 8: xray.app.proxyman.ReceiverConfig.sniffing_settings:type_name -> xray.app.proxyman.SniffingConfig
-	15, // 9: xray.app.proxyman.InboundHandlerConfig.receiver_settings:type_name -> xray.common.serial.TypedMessage
-	15, // 10: xray.app.proxyman.InboundHandlerConfig.proxy_settings:type_name -> xray.common.serial.TypedMessage
-	13, // 11: xray.app.proxyman.SenderConfig.via:type_name -> xray.common.net.IPOrDomain
-	14, // 12: xray.app.proxyman.SenderConfig.stream_settings:type_name -> xray.transport.internet.StreamConfig
-	16, // 13: xray.app.proxyman.SenderConfig.proxy_settings:type_name -> xray.transport.internet.ProxyConfig
-	9,  // 14: xray.app.proxyman.SenderConfig.multiplex_settings:type_name -> xray.app.proxyman.MultiplexingConfig
-	15, // [15:15] is the sub-list for method output_type
-	15, // [15:15] is the sub-list for method input_type
-	15, // [15:15] is the sub-list for extension type_name
-	15, // [15:15] is the sub-list for extension extendee
-	0,  // [0:15] is the sub-list for field type_name
+	0,  // 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, // 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, // 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
+	13, // 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
+	14, // 8: xray.app.proxyman.InboundHandlerConfig.receiver_settings:type_name -> xray.common.serial.TypedMessage
+	14, // 9: xray.app.proxyman.InboundHandlerConfig.proxy_settings:type_name -> xray.common.serial.TypedMessage
+	12, // 10: xray.app.proxyman.SenderConfig.via:type_name -> xray.common.net.IPOrDomain
+	13, // 11: xray.app.proxyman.SenderConfig.stream_settings:type_name -> xray.transport.internet.StreamConfig
+	15, // 12: xray.app.proxyman.SenderConfig.proxy_settings:type_name -> xray.transport.internet.ProxyConfig
+	8,  // 13: xray.app.proxyman.SenderConfig.multiplex_settings:type_name -> xray.app.proxyman.MultiplexingConfig
+	14, // [14:14] is the sub-list for method output_type
+	14, // [14:14] is the sub-list for method input_type
+	14, // [14:14] is the sub-list for extension type_name
+	14, // [14:14] is the sub-list for extension extendee
+	0,  // [0:14] is the sub-list for field type_name
 }
 
 func init() { file_app_proxyman_config_proto_init() }
@@ -934,134 +878,12 @@ 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:      2,
+			NumEnums:      1,
 			NumMessages:   10,
 			NumExtensions: 0,
 			NumServices:   0,

app/proxyman/config.proto

@@ -40,11 +40,6 @@ message AllocationStrategy {
   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;
@@ -71,10 +66,7 @@ message ReceiverConfig {
   xray.transport.internet.StreamConfig stream_settings = 4;
   bool receive_original_destination = 5;
   reserved 6;
-  // Override domains for the given protocol.
-  // Deprecated. Use sniffing_settings.
-  repeated KnownProtocols domain_override = 7 [ deprecated = true ];
-  SniffingConfig sniffing_settings = 8;
+  SniffingConfig sniffing_settings = 7;
 }
 
 message InboundHandlerConfig {
@@ -91,11 +83,16 @@ 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.
-  uint32 concurrency = 2;
+  int32 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, newError("not an inbound proxy.")
+		return nil, errors.New("not an inbound proxy.")
 	}
 
 	h := &AlwaysOnInboundHandler{
@@ -75,7 +75,7 @@ func NewAlwaysOnInboundHandler(ctx context.Context, tag string, receiverConfig *
 
 	mss, err := internet.ToMemoryStreamConfig(receiverConfig.StreamSettings)
 	if err != nil {
-		return nil, newError("failed to parse stream config").Base(err).AtWarning()
+		return nil, errors.New("failed to parse stream config").Base(err).AtWarning()
 	}
 
 	if receiverConfig.ReceiveOriginalDestination {
@@ -89,7 +89,7 @@ func NewAlwaysOnInboundHandler(ctx context.Context, tag string, receiverConfig *
 	}
 	if pl == nil {
 		if net.HasNetwork(nl, net.Network_UNIX) {
-			newError("creating unix domain socket worker on ", address).AtDebug().WriteToLog()
+			errors.LogDebug(ctx, "creating unix domain socket worker on ", address)
 
 			worker := &dsWorker{
 				address:         address,
@@ -109,7 +109,7 @@ func NewAlwaysOnInboundHandler(ctx context.Context, tag string, receiverConfig *
 		for _, pr := range pl.Range {
 			for port := pr.From; port <= pr.To; port++ {
 				if net.HasNetwork(nl, net.Network_TCP) {
-					newError("creating stream worker on ", address, ":", port).AtDebug().WriteToLog()
+					errors.LogDebug(ctx, "creating stream worker on ", address, ":", port)
 
 					worker := &tcpWorker{
 						address:         address,
@@ -167,7 +167,7 @@ func (h *AlwaysOnInboundHandler) Close() error {
 	}
 	errs = append(errs, h.mux.Close())
 	if err := errors.Combine(errs...); err != nil {
-		return newError("failed to close all resources").Base(err)
+		return errors.New("failed to close all resources").Base(err)
 	}
 	return nil
 }

app/proxyman/inbound/dynamic.go

@@ -7,6 +7,7 @@ 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"
@@ -46,7 +47,7 @@ func NewDynamicInboundHandler(ctx context.Context, tag string, receiverConfig *p
 
 	mss, err := internet.ToMemoryStreamConfig(receiverConfig.StreamSettings)
 	if err != nil {
-		return nil, newError("failed to parse stream settings").Base(err).AtWarning()
+		return nil, errors.New("failed to parse stream settings").Base(err).AtWarning()
 	}
 	if receiverConfig.ReceiveOriginalDestination {
 		if mss.SocketSettings == nil {
@@ -94,7 +95,7 @@ func (h *DynamicInboundHandler) closeWorkers(workers []worker) {
 	for idx, worker := range workers {
 		ports2Del[idx] = worker.Port()
 		if err := worker.Close(); err != nil {
-			newError("failed to close worker").Base(err).WriteToLog()
+			errors.LogInfoInner(h.ctx, err, "failed to close worker")
 		}
 	}
 
@@ -123,7 +124,7 @@ func (h *DynamicInboundHandler) refresh() error {
 		port := h.allocatePort()
 		rawProxy, err := core.CreateObject(h.v, h.proxyConfig)
 		if err != nil {
-			newError("failed to create proxy instance").Base(err).AtWarning().WriteToLog()
+			errors.LogWarningInner(h.ctx, err, "failed to create proxy instance")
 			continue
 		}
 		p := rawProxy.(proxy.Inbound)
@@ -143,7 +144,7 @@ func (h *DynamicInboundHandler) refresh() error {
 				ctx:             h.ctx,
 			}
 			if err := worker.Start(); err != nil {
-				newError("failed to create TCP worker").Base(err).AtWarning().WriteToLog()
+				errors.LogWarningInner(h.ctx, err, "failed to create TCP worker")
 				continue
 			}
 			workers = append(workers, worker)
@@ -163,7 +164,7 @@ func (h *DynamicInboundHandler) refresh() error {
 				ctx:             h.ctx,
 			}
 			if err := worker.Start(); err != nil {
-				newError("failed to create UDP worker").Base(err).AtWarning().WriteToLog()
+				errors.LogWarningInner(h.ctx, err, "failed to create UDP worker")
 				continue
 			}
 			workers = append(workers, worker)

app/proxyman/inbound/errors.generated.go

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

@@ -1,20 +1,19 @@
 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"
 	"github.com/xtls/xray-core/features/inbound"
 )
 
-// Manager is to manage all inbound handlers.
+// Manager manages all inbound handlers.
 type Manager struct {
 	access          sync.RWMutex
 	untaggedHandler []inbound.Handler
@@ -43,7 +42,7 @@ 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 newError("existing tag found: " + tag)
+			return errors.New("existing tag found: " + tag)
 		}
 		m.taggedHandlers[tag] = handler
 	} else {
@@ -64,7 +63,7 @@ func (m *Manager) GetHandler(ctx context.Context, tag string) (inbound.Handler,
 
 	handler, found := m.taggedHandlers[tag]
 	if !found {
-		return nil, newError("handler not found: ", tag)
+		return nil, errors.New("handler not found: ", tag)
 	}
 	return handler, nil
 }
@@ -80,7 +79,7 @@ func (m *Manager) RemoveHandler(ctx context.Context, tag string) error {
 
 	if handler, found := m.taggedHandlers[tag]; found {
 		if err := handler.Close(); err != nil {
-			newError("failed to close handler ", tag).Base(err).AtWarning().WriteToLog(session.ExportIDToError(ctx))
+			errors.LogWarningInner(ctx, err, "failed to close handler ", tag)
 		}
 		delete(m.taggedHandlers, tag)
 		return nil
@@ -117,20 +116,20 @@ func (m *Manager) Close() error {
 
 	m.running = false
 
-	var errors []interface{}
+	var errs []interface{}
 	for _, handler := range m.taggedHandlers {
 		if err := handler.Close(); err != nil {
-			errors = append(errors, err)
+			errs = append(errs, err)
 		}
 	}
 	for _, handler := range m.untaggedHandler {
 		if err := handler.Close(); err != nil {
-			errors = append(errors, err)
+			errs = append(errs, err)
 		}
 	}
 
-	if len(errors) > 0 {
-		return newError("failed to close all handlers").Base(newError(serial.Concat(errors...)))
+	if len(errs) > 0 {
+		return errors.New("failed to close all handlers").Base(errors.New(serial.Concat(errs...)))
 	}
 
 	return nil
@@ -150,7 +149,7 @@ func NewHandler(ctx context.Context, config *core.InboundHandlerConfig) (inbound
 
 	receiverSettings, ok := rawReceiverSettings.(*proxyman.ReceiverConfig)
 	if !ok {
-		return nil, newError("not a ReceiverConfig").AtError()
+		return nil, errors.New("not a ReceiverConfig").AtError()
 	}
 
 	streamSettings := receiverSettings.StreamSettings
@@ -168,7 +167,7 @@ func NewHandler(ctx context.Context, config *core.InboundHandlerConfig) (inbound
 	if allocStrategy.Type == proxyman.AllocationStrategy_Random {
 		return NewDynamicInboundHandler(ctx, tag, receiverSettings, proxySettings)
 	}
-	return nil, newError("unknown allocation strategy: ", receiverSettings.AllocationStrategy.Type).AtError()
+	return nil, errors.New("unknown allocation strategy: ", receiverSettings.AllocationStrategy.Type).AtError()
 }
 
 func init() {

app/proxyman/inbound/worker.go

@@ -9,6 +9,8 @@ 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"
@@ -58,15 +60,16 @@ func getTProxyType(s *internet.MemoryStreamConfig) internet.SocketConfig_TProxyM
 func (w *tcpWorker) callback(conn stat.Connection) {
 	ctx, cancel := context.WithCancel(w.ctx)
 	sid := session.NewID()
-	ctx = session.ContextWithID(ctx, sid)
+	ctx = c.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 {
-				newError("failed to get original destination").Base(err).WriteToLog(session.ExportIDToError(ctx))
+				errors.LogInfoInner(ctx, err, "failed to get original destination")
 			} else {
 				dest = d
 			}
@@ -74,11 +77,10 @@ func (w *tcpWorker) callback(conn stat.Connection) {
 			dest = net.DestinationFromAddr(conn.LocalAddr())
 		}
 		if dest.IsValid() {
-			ctx = session.ContextWithOutbound(ctx, &session.Outbound{
-				Target: dest,
-			})
+			outbounds[0].Target = dest
 		}
 	}
+	ctx = session.ContextWithOutbounds(ctx, outbounds)
 
 	if w.uplinkCounter != nil || w.downlinkCounter != nil {
 		conn = &stat.CounterConnection{
@@ -105,7 +107,7 @@ func (w *tcpWorker) callback(conn stat.Connection) {
 	ctx = session.ContextWithContent(ctx, content)
 
 	if err := w.proxy.Process(ctx, net.Network_TCP, conn, w.dispatcher); err != nil {
-		newError("connection ends").Base(err).WriteToLog(session.ExportIDToError(ctx))
+		errors.LogInfoInner(ctx, err, "connection ends")
 	}
 	cancel()
 	conn.Close()
@@ -121,24 +123,24 @@ func (w *tcpWorker) Start() error {
 		go w.callback(conn)
 	})
 	if err != nil {
-		return newError("failed to listen TCP on ", w.port).AtWarning().Base(err)
+		return errors.New("failed to listen TCP on ", w.port).AtWarning().Base(err)
 	}
 	w.hub = hub
 	return nil
 }
 
 func (w *tcpWorker) Close() error {
-	var errors []interface{}
+	var errs []interface{}
 	if w.hub != nil {
 		if err := common.Close(w.hub); err != nil {
-			errors = append(errors, err)
+			errs = append(errs, err)
 		}
 		if err := common.Close(w.proxy); err != nil {
-			errors = append(errors, err)
+			errs = append(errs, err)
 		}
 	}
-	if len(errors) > 0 {
-		return newError("failed to close all resources").Base(newError(serial.Concat(errors...)))
+	if len(errs) > 0 {
+		return errors.New("failed to close all resources").Base(errors.New(serial.Concat(errs...)))
 	}
 
 	return nil
@@ -306,13 +308,13 @@ func (w *udpWorker) callback(b *buf.Buffer, source net.Destination, originalDest
 		go func() {
 			ctx := w.ctx
 			sid := session.NewID()
-			ctx = session.ContextWithID(ctx, sid)
+			ctx = c.ContextWithID(ctx, sid)
 
+			outbounds := []*session.Outbound{{}}
 			if originalDest.IsValid() {
-				ctx = session.ContextWithOutbound(ctx, &session.Outbound{
-					Target: originalDest,
-				})
+				outbounds[0].Target = originalDest
 			}
+			ctx = session.ContextWithOutbounds(ctx, outbounds)
 			ctx = session.ContextWithInbound(ctx, &session.Inbound{
 				Source:  source,
 				Gateway: net.UDPDestination(w.address, w.port),
@@ -327,7 +329,7 @@ func (w *udpWorker) callback(b *buf.Buffer, source net.Destination, originalDest
 			}
 			ctx = session.ContextWithContent(ctx, content)
 			if err := w.proxy.Process(ctx, net.Network_UDP, conn, w.dispatcher); err != nil {
-				newError("connection ends").Base(err).WriteToLog(session.ExportIDToError(ctx))
+				errors.LogInfoInner(ctx, err, "connection ends")
 			}
 			conn.Close()
 			// conn not removed by checker TODO may be lock worker here is better
@@ -358,11 +360,11 @@ func (w *udpWorker) clean() error {
 	defer w.Unlock()
 
 	if len(w.activeConn) == 0 {
-		return newError("no more connections. stopping...")
+		return errors.New("no more connections. stopping...")
 	}
 
 	for addr, conn := range w.activeConn {
-		if nowSec-atomic.LoadInt64(&conn.lastActivityTime) > 5*60 { // TODO Timeout too small
+		if nowSec-atomic.LoadInt64(&conn.lastActivityTime) > 2*60 {
 			if !conn.inactive {
 				conn.setInactive()
 				delete(w.activeConn, addr)
@@ -402,26 +404,26 @@ func (w *udpWorker) Close() error {
 	w.Lock()
 	defer w.Unlock()
 
-	var errors []interface{}
+	var errs []interface{}
 
 	if w.hub != nil {
 		if err := w.hub.Close(); err != nil {
-			errors = append(errors, err)
+			errs = append(errs, err)
 		}
 	}
 
 	if w.checker != nil {
 		if err := w.checker.Close(); err != nil {
-			errors = append(errors, err)
+			errs = append(errs, err)
 		}
 	}
 
 	if err := common.Close(w.proxy); err != nil {
-		errors = append(errors, err)
+		errs = append(errs, err)
 	}
 
-	if len(errors) > 0 {
-		return newError("failed to close all resources").Base(newError(serial.Concat(errors...)))
+	if len(errs) > 0 {
+		return errors.New("failed to close all resources").Base(errors.New(serial.Concat(errs...)))
 	}
 	return nil
 }
@@ -452,7 +454,7 @@ type dsWorker struct {
 func (w *dsWorker) callback(conn stat.Connection) {
 	ctx, cancel := context.WithCancel(w.ctx)
 	sid := session.NewID()
-	ctx = session.ContextWithID(ctx, sid)
+	ctx = c.ContextWithID(ctx, sid)
 
 	if w.uplinkCounter != nil || w.downlinkCounter != nil {
 		conn = &stat.CounterConnection{
@@ -462,7 +464,8 @@ func (w *dsWorker) callback(conn stat.Connection) {
 		}
 	}
 	ctx = session.ContextWithInbound(ctx, &session.Inbound{
-		Source:  net.DestinationFromAddr(conn.RemoteAddr()),
+		// Unix have no source addr, so we use gateway as source for log.
+		Source:  net.UnixDestination(w.address),
 		Gateway: net.UnixDestination(w.address),
 		Tag:     w.tag,
 		Conn:    conn,
@@ -479,11 +482,11 @@ func (w *dsWorker) callback(conn stat.Connection) {
 	ctx = session.ContextWithContent(ctx, content)
 
 	if err := w.proxy.Process(ctx, net.Network_UNIX, conn, w.dispatcher); err != nil {
-		newError("connection ends").Base(err).WriteToLog(session.ExportIDToError(ctx))
+		errors.LogInfoInner(ctx, err, "connection ends")
 	}
 	cancel()
 	if err := conn.Close(); err != nil {
-		newError("failed to close connection").Base(err).WriteToLog(session.ExportIDToError(ctx))
+		errors.LogInfoInner(ctx, err, "failed to close connection")
 	}
 }
 
@@ -501,24 +504,24 @@ func (w *dsWorker) Start() error {
 		go w.callback(conn)
 	})
 	if err != nil {
-		return newError("failed to listen Unix Domain Socket on ", w.address).AtWarning().Base(err)
+		return errors.New("failed to listen Unix Domain Socket on ", w.address).AtWarning().Base(err)
 	}
 	w.hub = hub
 	return nil
 }
 
 func (w *dsWorker) Close() error {
-	var errors []interface{}
+	var errs []interface{}
 	if w.hub != nil {
 		if err := common.Close(w.hub); err != nil {
-			errors = append(errors, err)
+			errs = append(errs, err)
 		}
 		if err := common.Close(w.proxy); err != nil {
-			errors = append(errors, err)
+			errs = append(errs, err)
 		}
 	}
-	if len(errors) > 0 {
-		return newError("failed to close all resources").Base(newError(serial.Concat(errors...)))
+	if len(errs) > 0 {
+		return errors.New("failed to close all resources").Base(errors.New(serial.Concat(errs...)))
 	}
 
 	return nil

app/proxyman/outbound/errors.generated.go

@@ -1,9 +0,0 @@
-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{})
-}

app/proxyman/outbound/handler.go

@@ -2,12 +2,17 @@ package outbound
 
 import (
 	"context"
-	"errors"
+	"crypto/rand"
+	goerrors "errors"
 	"io"
+	"math/big"
+	gonet "net"
 	"os"
 
 	"github.com/xtls/xray-core/app/proxyman"
 	"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/mux"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/net/cnc"
@@ -49,7 +54,7 @@ func getStatCounter(v *core.Instance, tag string) (stats.Counter, stats.Counter)
 	return uplinkCounter, downlinkCounter
 }
 
-// Handler is an implements of outbound.Handler.
+// Handler implements outbound.Handler.
 type Handler struct {
 	tag             string
 	senderSettings  *proxyman.SenderConfig
@@ -57,6 +62,8 @@ type Handler struct {
 	proxy           proxy.Outbound
 	outboundManager outbound.Manager
 	mux             *mux.ClientManager
+	xudp            *mux.ClientManager
+	udp443          string
 	uplinkCounter   stats.Counter
 	downlinkCounter stats.Counter
 }
@@ -82,11 +89,11 @@ func NewHandler(ctx context.Context, config *core.OutboundHandlerConfig) (outbou
 			h.senderSettings = s
 			mss, err := internet.ToMemoryStreamConfig(s.StreamSettings)
 			if err != nil {
-				return nil, newError("failed to parse stream settings").Base(err).AtWarning()
+				return nil, errors.New("failed to parse stream settings").Base(err).AtWarning()
 			}
 			h.streamSettings = mss
 		default:
-			return nil, newError("settings is not SenderConfig")
+			return nil, errors.New("settings is not SenderConfig")
 		}
 	}
 
@@ -102,28 +109,56 @@ func NewHandler(ctx context.Context, config *core.OutboundHandlerConfig) (outbou
 
 	proxyHandler, ok := rawProxyHandler.(proxy.Outbound)
 	if !ok {
-		return nil, newError("not an outbound handler")
+		return nil, errors.New("not an outbound handler")
 	}
 
 	if h.senderSettings != nil && h.senderSettings.MultiplexSettings != nil {
-		config := h.senderSettings.MultiplexSettings
-		if config.Concurrency < 1 || config.Concurrency > 1024 {
-			return nil, newError("invalid mux concurrency: ", config.Concurrency).AtWarning()
+		if config := h.senderSettings.MultiplexSettings; config.Enabled {
+			if config.Concurrency < 0 {
+				h.mux = &mux.ClientManager{Enabled: false}
 			}
+			if config.Concurrency == 0 {
+				config.Concurrency = 8 // same as before
+			}
+			if config.Concurrency > 0 {
 				h.mux = &mux.ClientManager{
-			Enabled: h.senderSettings.MultiplexSettings.Enabled,
+					Enabled: true,
 					Picker: &mux.IncrementalWorkerPicker{
 						Factory: &mux.DialingWorkerFactory{
 							Proxy:  proxyHandler,
 							Dialer: h,
 							Strategy: mux.ClientStrategy{
-						MaxConcurrency: config.Concurrency,
+								MaxConcurrency: uint32(config.Concurrency),
 								MaxConnection:  128,
 							},
 						},
 					},
 				}
 			}
+			if config.XudpConcurrency < 0 {
+				h.xudp = &mux.ClientManager{Enabled: false}
+			}
+			if config.XudpConcurrency == 0 {
+				h.xudp = nil // same as before
+			}
+			if config.XudpConcurrency > 0 {
+				h.xudp = &mux.ClientManager{
+					Enabled: true,
+					Picker: &mux.IncrementalWorkerPicker{
+						Factory: &mux.DialingWorkerFactory{
+							Proxy:  proxyHandler,
+							Dialer: h,
+							Strategy: mux.ClientStrategy{
+								MaxConcurrency: uint32(config.XudpConcurrency),
+								MaxConnection:  128,
+							},
+						},
+					},
+				}
+			}
+			h.udp443 = config.XudpProxyUDP443
+		}
+	}
 
 	h.proxy = proxyHandler
 	return h, nil
@@ -136,31 +171,59 @@ func (h *Handler) Tag() string {
 
 // Dispatch implements proxy.Outbound.Dispatch.
 func (h *Handler) Dispatch(ctx context.Context, link *transport.Link) {
-	if h.mux != nil && (h.mux.Enabled || session.MuxPreferedFromContext(ctx)) {
-		if err := h.mux.Dispatch(ctx, link); err != nil {
-			err := newError("failed to process mux outbound traffic").Base(err)
+	outbounds := session.OutboundsFromContext(ctx)
+	ob := outbounds[len(outbounds)-1]
+	if ob.Target.Network == net.Network_UDP && ob.OriginalTarget.Address != nil && ob.OriginalTarget.Address != ob.Target.Address {
+		link.Reader = &buf.EndpointOverrideReader{Reader: link.Reader, Dest: ob.Target.Address, OriginalDest: ob.OriginalTarget.Address}
+		link.Writer = &buf.EndpointOverrideWriter{Writer: link.Writer, Dest: ob.Target.Address, OriginalDest: ob.OriginalTarget.Address}
+	}
+	if h.mux != nil {
+		test := func(err error) {
+			if err != nil {
+				err := errors.New("failed to process mux outbound traffic").Base(err)
 				session.SubmitOutboundErrorToOriginator(ctx, err)
-			err.WriteToLog(session.ExportIDToError(ctx))
+				errors.LogInfo(ctx, err.Error())
 				common.Interrupt(link.Writer)
 			}
-	} else {
+		}
+		if ob.Target.Network == net.Network_UDP && ob.Target.Port == 443 {
+			switch h.udp443 {
+			case "reject":
+				test(errors.New("XUDP rejected UDP/443 traffic").AtInfo())
+				return
+			case "skip":
+				goto out
+			}
+		}
+		if h.xudp != nil && ob.Target.Network == net.Network_UDP {
+			if !h.xudp.Enabled {
+				goto out
+			}
+			test(h.xudp.Dispatch(ctx, link))
+			return
+		}
+		if h.mux.Enabled {
+			test(h.mux.Dispatch(ctx, link))
+			return
+		}
+	}
+out:
 	err := h.proxy.Process(ctx, link, h)
 	if err != nil {
-			if errors.Is(err, io.EOF) || errors.Is(err, io.ErrClosedPipe) || errors.Is(err, context.Canceled) {
+		if goerrors.Is(err, io.EOF) || goerrors.Is(err, io.ErrClosedPipe) || goerrors.Is(err, context.Canceled) {
 			err = nil
 		}
 	}
 	if err != nil {
 		// Ensure outbound ray is properly closed.
-			err := newError("failed to process outbound traffic").Base(err)
+		err := errors.New("failed to process outbound traffic").Base(err)
 		session.SubmitOutboundErrorToOriginator(ctx, err)
-			err.WriteToLog(session.ExportIDToError(ctx))
+		errors.LogInfo(ctx, err.Error())
 		common.Interrupt(link.Writer)
 	} else {
-			common.Must(common.Close(link.Writer))
+		common.Close(link.Writer)
 	}
 	common.Interrupt(link.Reader)
-	}
 }
 
 // Address implements internet.Dialer.
@@ -171,6 +234,10 @@ func (h *Handler) Address() net.Address {
 	return h.senderSettings.Via.AsAddress()
 }
 
+func (h *Handler) DestIpAddress() net.IP {
+	return internet.DestIpAddress()
+}
+
 // Dial implements internet.Dialer.
 func (h *Handler) Dial(ctx context.Context, dest net.Destination) (stat.Connection, error) {
 	if h.senderSettings != nil {
@@ -178,11 +245,12 @@ func (h *Handler) Dial(ctx context.Context, dest net.Destination) (stat.Connecti
 			tag := h.senderSettings.ProxySettings.Tag
 			handler := h.outboundManager.GetHandler(tag)
 			if handler != nil {
-				newError("proxying to ", tag, " for dest ", dest).AtDebug().WriteToLog(session.ExportIDToError(ctx))
-				ctx = session.ContextWithOutbound(ctx, &session.Outbound{
+				errors.LogDebug(ctx, "proxying to ", tag, " for dest ", dest)
+				outbounds := session.OutboundsFromContext(ctx)
+				ctx = session.ContextWithOutbounds(ctx, append(outbounds, &session.Outbound{
 					Target: dest,
-				})
-
+					Tag:    tag,
+				})) // add another outbound in session ctx
 				opts := pipe.OptionsFromContext(ctx)
 				uplinkReader, uplinkWriter := pipe.New(opts...)
 				downlinkReader, downlinkWriter := pipe.New(opts...)
@@ -198,16 +266,17 @@ func (h *Handler) Dial(ctx context.Context, dest net.Destination) (stat.Connecti
 				return h.getStatCouterConnection(conn), nil
 			}
 
-			newError("failed to get outbound handler with tag: ", tag).AtWarning().WriteToLog(session.ExportIDToError(ctx))
+			errors.LogWarning(ctx, "failed to get outbound handler with tag: ", tag)
 		}
 
 		if h.senderSettings.Via != nil {
-			outbound := session.OutboundFromContext(ctx)
-			if outbound == nil {
-				outbound = new(session.Outbound)
-				ctx = session.ContextWithOutbound(ctx, outbound)
+			outbounds := session.OutboundsFromContext(ctx)
+			ob := outbounds[len(outbounds)-1]
+			if h.senderSettings.ViaCidr == "" {
+				ob.Gateway = h.senderSettings.Via.AsAddress()
+			} else { //Get a random address.
+				ob.Gateway = ParseRandomIPv6(h.senderSettings.Via.AsAddress(), h.senderSettings.ViaCidr)
 			}
-			outbound.Gateway = h.senderSettings.Via.AsAddress()
 		}
 	}
 
@@ -216,7 +285,11 @@ func (h *Handler) Dial(ctx context.Context, dest net.Destination) (stat.Connecti
 	}
 
 	conn, err := internet.Dial(ctx, dest, h.streamSettings)
-	return h.getStatCouterConnection(conn), err
+	conn = h.getStatCouterConnection(conn)
+	outbounds := session.OutboundsFromContext(ctx)
+	ob := outbounds[len(outbounds)-1]
+	ob.Conn = conn
+	return conn, err
 }
 
 func (h *Handler) getStatCouterConnection(conn stat.Connection) stat.Connection {
@@ -245,3 +318,21 @@ func (h *Handler) Close() error {
 	common.Close(h.mux)
 	return nil
 }
+
+func ParseRandomIPv6(address net.Address, prefix string) net.Address {
+	_, network, _ := gonet.ParseCIDR(address.IP().String() + "/" + prefix)
+
+	maskSize, totalBits := network.Mask.Size()
+	subnetSize := big.NewInt(1).Lsh(big.NewInt(1), uint(totalBits-maskSize))
+
+	// random
+	randomBigInt, _ := rand.Int(rand.Reader, subnetSize)
+
+	startIPBigInt := big.NewInt(0).SetBytes(network.IP.To16())
+	randomIPBigInt := big.NewInt(0).Add(startIPBigInt, randomBigInt)
+
+	randomIPBytes := randomIPBigInt.Bytes()
+	randomIPBytes = append(make([]byte, 16-len(randomIPBytes)), randomIPBytes...)
+
+	return net.ParseAddress(gonet.IP(randomIPBytes).String())
+}

app/proxyman/outbound/handler_test.go

@@ -2,13 +2,19 @@ package outbound_test
 
 import (
 	"context"
+	"fmt"
+	"sync"
+	"sync/atomic"
 	"testing"
+	"time"
 
 	"github.com/xtls/xray-core/app/policy"
+	"github.com/xtls/xray-core/app/proxyman"
 	. "github.com/xtls/xray-core/app/proxyman/outbound"
 	"github.com/xtls/xray-core/app/stats"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/serial"
+	"github.com/xtls/xray-core/common/session"
 	core "github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/outbound"
 	"github.com/xtls/xray-core/proxy/freedom"
@@ -39,6 +45,7 @@ func TestOutboundWithoutStatCounter(t *testing.T) {
 	v, _ := core.New(config)
 	v.AddFeature((outbound.Manager)(new(Manager)))
 	ctx := context.WithValue(context.Background(), xrayKey, v)
+	ctx = session.ContextWithOutbounds(ctx, []*session.Outbound{{}})
 	h, _ := NewHandler(ctx, &core.OutboundHandlerConfig{
 		Tag:           "tag",
 		ProxySettings: serial.ToTypedMessage(&freedom.Config{}),
@@ -68,6 +75,7 @@ func TestOutboundWithStatCounter(t *testing.T) {
 	v, _ := core.New(config)
 	v.AddFeature((outbound.Manager)(new(Manager)))
 	ctx := context.WithValue(context.Background(), xrayKey, v)
+	ctx = session.ContextWithOutbounds(ctx, []*session.Outbound{{}})
 	h, _ := NewHandler(ctx, &core.OutboundHandlerConfig{
 		Tag:           "tag",
 		ProxySettings: serial.ToTypedMessage(&freedom.Config{}),
@@ -78,3 +86,91 @@ func TestOutboundWithStatCounter(t *testing.T) {
 		t.Errorf("Expected conn to be CounterConnection")
 	}
 }
+
+func TestTagsCache(t *testing.T) {
+
+	test_duration := 10 * time.Second
+	threads_num := 50
+	delay := 10 * time.Millisecond
+	tags_prefix := "node"
+
+	tags := sync.Map{}
+	counter := atomic.Uint64{}
+
+	ohm, err := New(context.Background(), &proxyman.OutboundConfig{})
+	if err != nil {
+		t.Error("failed to create outbound handler manager")
+	}
+	config := &core.Config{
+		App: []*serial.TypedMessage{},
+	}
+	v, _ := core.New(config)
+	v.AddFeature(ohm)
+	ctx := context.WithValue(context.Background(), xrayKey, v)
+
+	stop_add_rm := false
+	wg_add_rm := sync.WaitGroup{}
+	addHandlers := func() {
+		defer wg_add_rm.Done()
+		for !stop_add_rm {
+			time.Sleep(delay)
+			idx := counter.Add(1)
+			tag := fmt.Sprintf("%s%d", tags_prefix, idx)
+			cfg := &core.OutboundHandlerConfig{
+				Tag:           tag,
+				ProxySettings: serial.ToTypedMessage(&freedom.Config{}),
+			}
+			if h, err := NewHandler(ctx, cfg); err == nil {
+				if err := ohm.AddHandler(ctx, h); err == nil {
+					// t.Log("add handler:", tag)
+					tags.Store(tag, nil)
+				} else {
+					t.Error("failed to add handler:", tag)
+				}
+			} else {
+				t.Error("failed to create handler:", tag)
+			}
+		}
+	}
+
+	rmHandlers := func() {
+		defer wg_add_rm.Done()
+		for !stop_add_rm {
+			time.Sleep(delay)
+			tags.Range(func(key interface{}, value interface{}) bool {
+				if _, ok := tags.LoadAndDelete(key); ok {
+					// t.Log("remove handler:", key)
+					ohm.RemoveHandler(ctx, key.(string))
+					return false
+				}
+				return true
+			})
+		}
+	}
+
+	selectors := []string{tags_prefix}
+	wg_get := sync.WaitGroup{}
+	stop_get := false
+	getTags := func() {
+		defer wg_get.Done()
+		for !stop_get {
+			time.Sleep(delay)
+			_ = ohm.Select(selectors)
+			// t.Logf("get tags: %v", tag)
+		}
+	}
+
+	for i := 0; i < threads_num; i++ {
+		wg_add_rm.Add(2)
+		go rmHandlers()
+		go addHandlers()
+		wg_get.Add(1)
+		go getTags()
+	}
+
+	time.Sleep(test_duration)
+	stop_add_rm = true
+	wg_add_rm.Wait()
+	stop_get = true
+	wg_get.Wait()
+}

app/proxyman/outbound/outbound.go

@@ -1,9 +1,8 @@
 package outbound
 
-//go:generate go run github.com/xtls/xray-core/common/errors/errorgen
-
 import (
 	"context"
+	"sort"
 	"strings"
 	"sync"
 
@@ -21,12 +20,14 @@ type Manager struct {
 	taggedHandler    map[string]outbound.Handler
 	untaggedHandlers []outbound.Handler
 	running          bool
+	tagsCache        *sync.Map
 }
 
 // New creates a new Manager.
 func New(ctx context.Context, config *proxyman.OutboundConfig) (*Manager, error) {
 	m := &Manager{
 		taggedHandler: make(map[string]outbound.Handler),
+		tagsCache:     &sync.Map{},
 	}
 	return m, nil
 }
@@ -103,6 +104,8 @@ func (m *Manager) AddHandler(ctx context.Context, handler outbound.Handler) erro
 	m.access.Lock()
 	defer m.access.Unlock()
 
+	m.tagsCache = &sync.Map{}
+
 	if m.defaultHandler == nil {
 		m.defaultHandler = handler
 	}
@@ -110,7 +113,7 @@ func (m *Manager) AddHandler(ctx context.Context, handler outbound.Handler) erro
 	tag := handler.Tag()
 	if len(tag) > 0 {
 		if _, found := m.taggedHandler[tag]; found {
-			return newError("existing tag found: " + tag)
+			return errors.New("existing tag found: " + tag)
 		}
 		m.taggedHandler[tag] = handler
 	} else {
@@ -132,6 +135,8 @@ func (m *Manager) RemoveHandler(ctx context.Context, tag string) error {
 	m.access.Lock()
 	defer m.access.Unlock()
 
+	m.tagsCache = &sync.Map{}
+
 	delete(m.taggedHandler, tag)
 	if m.defaultHandler != nil && m.defaultHandler.Tag() == tag {
 		m.defaultHandler = nil
@@ -142,24 +147,29 @@ func (m *Manager) RemoveHandler(ctx context.Context, tag string) error {
 
 // Select implements outbound.HandlerSelector.
 func (m *Manager) Select(selectors []string) []string {
+
+	key := strings.Join(selectors, ",")
+	if cache, ok := m.tagsCache.Load(key); ok {
+		return cache.([]string)
+	}
+
 	m.access.RLock()
 	defer m.access.RUnlock()
 
 	tags := make([]string, 0, len(selectors))
 
 	for tag := range m.taggedHandler {
-		match := false
 		for _, selector := range selectors {
 			if strings.HasPrefix(tag, selector) {
-				match = true
+				tags = append(tags, tag)
 				break
 			}
 		}
-		if match {
-			tags = append(tags, tag)
-		}
 	}
 
+	sort.Strings(tags)
+	m.tagsCache.Store(key, tags)
+
 	return tags
 }