Docs(locales): add chinese locale support (#2772)

Upstream patch from FreeBSD ports which adds IPv6 support.

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -1,76 +0,0 @@
-name: Bug report
-description: Create a report to help us improve
-title: "[Bug] "
-body:
-  - type: checkboxes
-    id: ensure
-    attributes:
-      label: Verify steps
-      description: "
-在提交之前，请确认
-Please verify that you've followed these steps
-"
-      options:
-        - label: "
-如果你可以自己 debug 并解决的话，提交 PR 吧
-Is this something you can **debug and fix**? Send a pull request! Bug fixes and documentation fixes are welcome.
-"
-          required: true
-        - label: "
-我已经在 [Issue Tracker](……/) 中找过我要提出的问题
-I have searched on the [issue tracker](……/) for a related issue.
-"
-          required: true
-        - label: "
-我已经使用 dev 分支版本测试过，问题依旧存在
-I have tested using the dev branch, and the issue still exists.
-"
-          required: true
-        - label: "
-我已经仔细看过 [Documentation](https://github.com/Dreamacro/clash/wiki/) 并无法自行解决问题
-I have read the [documentation](https://github.com/Dreamacro/clash/wiki/) and was unable to solve the issue.
-"
-          required: true
-        - label: "
-这是 Clash 核心的问题，并非我所使用的 Clash 衍生版本（如 OpenClash、KoolClash 等）的特定问题
-This is an issue of the Clash core *per se*, not to the derivatives of Clash, like OpenClash or KoolClash.
-"
-          required: true
-  - type: input
-    attributes:
-      label: Clash version
-    validations:
-      required: true
-  - type: dropdown
-    id: os
-    attributes:
-      label: What OS are you seeing the problem on?
-      multiple: true
-      options:
-        - macOS
-        - Windows
-        - Linux
-        - OpenBSD/FreeBSD
-  - type: textarea
-    attributes:
-      render: yaml
-      label: "Clash config"
-      description: "
-在下方附上 Clash core 配置文件，请确保配置文件中没有敏感信息（比如：服务器地址，密码，端口等）
-Paste the Clash core configuration file below, please make sure that there is no sensitive information in the configuration file (e.g., server address/url, password, port)
-"
-    validations:
-      required: true
-  - type: textarea
-    attributes:
-      render: shell
-      label: Clash log
-      description: "
-在下方附上 Clash Core 的日志，log level 使用 DEBUG
-Paste the Clash core log below with the log level set to `DEBUG`.
-"
-  - type: textarea
-    attributes:
-      label: Description
-    validations:
-      required: true

.github/ISSUE_TEMPLATE/bug_report_en.yml

@@ -0,0 +1,124 @@
+name: (English) Report a bug of the Clash core
+description: Create a bug report to help us improve
+labels:
+  - bug
+title: "[Bug] <issue title>"
+body:
+  - type: markdown
+    attributes:
+      value: "## Welcome to the official Clash open-source community"
+
+  - type: markdown
+    attributes:
+      value: |
+        Thank you for taking the time to report an issue with the Clash core.  
+        
+        Prior to submitting this issue, please read and follow the guidelines below to ensure that your issue can be resolved as quickly as possible. Options marked with an asterisk (*) are required, while others are optional. If the information you provide does not comply with the requirements, the maintainers may not respond and may directly close the issue.  
+        
+        If you can debug and fix the issue yourself, we welcome you to submit a pull request to merge your changes upstream.
+
+  - type: checkboxes
+    id: ensure
+    attributes:
+      label: Prerequisites
+      description: "If any of the following options do not apply, please do not submit this issue as we will close it"
+      options:
+        - label: "I understand that this is the official open-source version of the Clash core, **only providing support for the open-source version or Premium version**"
+          required: true
+        - label: "I am submitting an issue with the Clash core, not Clash.Meta / OpenClash / ClashX / Clash For Windows or any other derivative version"
+          required: true
+        - label: "I am using the latest version of the Clash or Clash Premium core **in this repository**"
+          required: true
+        - label: "I have searched at the [Issue Tracker](……/) **and have not found any related issues**"
+          required: true
+        - label: "I have read the [official Wiki](https://dreamacro.github.io/clash/) **and was unable to solve the issue**"
+          required: true
+        - label: "(required for Premium core) I've tried the `dev` branch and the issue still exists"
+          required: false
+
+  - type: markdown
+    attributes:
+      value: "## Environment"
+  - type: markdown
+    attributes:
+      value: |
+        Please provide the following information to help us locate the issue.  
+        The issue might be closed if there's not enough information provided.
+
+  - type: input
+    attributes:
+      label: Version
+      description: "Run `clash -v` or look at the bottom-left corner of the Clash Dashboard to find out"
+    validations:
+      required: true
+
+  - type: dropdown
+    id: os
+    attributes:
+      label: Operating System
+      description: "Select all operating systems that apply to this issue"
+      multiple: true
+      options:
+        - Linux
+        - Windows
+        - macOS (darwin)
+        - Android
+        - OpenBSD / FreeBSD
+
+  - type: dropdown
+    id: arch
+    attributes:
+      label: Architecture
+      description: "Select all architectures that apply to this issue"
+      multiple: true
+      options:
+        - amd64
+        - amd64-v3
+        - arm64
+        - "386"
+        - armv5
+        - armv6
+        - armv7
+        - mips-softfloat
+        - mips-hardfloat
+        - mipsle-softfloat
+        - mipsle-hardfloat
+        - mips64
+        - mips64le
+        - riscv64
+
+  - type: markdown
+    attributes:
+      value: "## Clash related information"
+  - type: markdown
+    attributes:
+      value: |
+        Please provide relevant information about your Clash instance here. If you
+        do not provide enough information, the issue may be closed.
+
+  - type: textarea
+    attributes:
+      render: YAML
+      label: Configuration File
+      placeholder: "Ensure that there is no sensitive information (such as server addresses, passwords, or ports) in the configuration file, and provide the minimum reproducible configuration. Do not post configurations with thousands of lines."
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      render: Text
+      label: Log
+      placeholder: "Please attach the corresponding core outout (setting `log-level: debug` in the configuration provides debugging information)."
+
+  - type: textarea
+    attributes:
+      label: Description
+      placeholder: "Please describe your issue in detail here to help us understand (supports Markdown syntax)."
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Reproduction Steps
+      placeholder: "Please provide the specific steps to reproduce the issue here (supports Markdown syntax)."
+

.github/ISSUE_TEMPLATE/bug_report_zh.yml

@@ -0,0 +1,121 @@
+name: （中文）提交 Clash 核心的问题
+description: 如果 Clash 核心运作不符合预期，在这里提交问题
+labels:
+  - bug
+title: "[Bug] <问题标题>"
+body:
+  - type: markdown
+    attributes:
+      value: "## 欢迎来到 Clash 官方开源社区！"
+
+  - type: markdown
+    attributes:
+      value: |
+        感谢你拨冗提交 Clash 内核的问题。在提交之前，请仔细阅读并遵守以下指引，以确保你的问题能够被尽快解决。  
+        带有星号（*）的选项为必填，其他可选填。**如果你填写的资料不符合规范，维护者可能不予回复，并直接关闭这个 issue。**
+        如果你可以自行 debug 并且修正，我们随时欢迎你提交 Pull Request，将你的修改合并到上游。
+
+  - type: checkboxes
+    id: ensure
+    attributes:
+      label: 先决条件
+      description: "若以下任意选项不适用，请勿提交这个 issue，因为我们会把它关闭"
+      options:
+        - label: "我了解这里是官方开源版 Clash 核心仓库，**只提供开源版或者 Premium 内核的支持**"
+          required: true
+        - label: "我要提交 Clash 核心的问题，并非 Clash.Meta / OpenClash / ClashX / Clash For Windows 或其他任何衍生版本的问题"
+          required: true
+        - label: "我使用的是**本仓库**最新版本的 Clash 或 Clash Premium 内核"
+          required: true
+        - label: "我已经在 [Issue Tracker](……/) 中找过我要提出的 bug，**并且没有找到相关问题**"
+          required: true
+        - label: "我已经仔细阅读 [官方 Wiki](https://dreamacro.github.io/clash/) 并无法自行解决问题"
+          required: true
+        - label: "（非 Premium 内核必填）我已经使用 dev 分支版本测试过，问题依旧存在"
+          required: false
+
+  - type: markdown
+    attributes:
+      value: "## 系统环境"
+  - type: markdown
+    attributes:
+      value: |
+        请附上这个问题适用的环境，以帮助我们迅速定位问题并解决。若你提供的信息不足，我们将关闭
+        这个 issue 并要求你提供更多信息。
+
+  - type: input
+    attributes:
+      label: 版本
+      description: "运行 `clash -v` 或者查看 Clash Dashboard 的左下角来找到你现在使用的版本"
+    validations:
+      required: true
+
+  - type: dropdown
+    id: os
+    attributes:
+      label: 适用的作业系统
+      description: "勾选所有适用于这个 issue 的系统"
+      multiple: true
+      options:
+        - Linux
+        - Windows
+        - macOS (darwin)
+        - Android
+        - OpenBSD / FreeBSD
+
+  - type: dropdown
+    id: arch
+    attributes:
+      label: 适用的硬件架构
+      description: "勾选所有适用于这个 issue 的架构"
+      multiple: true
+      options:
+        - amd64
+        - amd64-v3
+        - arm64
+        - "386"
+        - armv5
+        - armv6
+        - armv7
+        - mips-softfloat
+        - mips-hardfloat
+        - mipsle-softfloat
+        - mipsle-hardfloat
+        - mips64
+        - mips64le
+        - riscv64
+
+  - type: markdown
+    attributes:
+      value: "## Clash 相关信息"
+  - type: markdown
+    attributes:
+      value: |
+        请附上与这个问题直接相关的相应信息，以帮助我们迅速定位问题并解决。  
+        若你提供的信息不足，我们将关闭这个 issue 并要求你提供更多信息。
+
+  - type: textarea
+    attributes:
+      render: YAML
+      label: "配置文件"
+      placeholder: "确保配置文件中没有敏感信息（如：服务器地址、密码、端口），并且提供最小可复现配置，严禁贴上上千行的配置"
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      render: Text
+      label: 日志输出
+      placeholder: "在这里附上问题对应的内核日志（在配置中设置 `log-level: debug` 可获得调试信息）"
+
+  - type: textarea
+    attributes:
+      label: 问题描述
+      placeholder: "在这里详细叙述你的问题，帮助我们理解（支持 Markdown 语法）"
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: 复现步骤
+      placeholder: "在这里提供问题的具体重现步骤（支持 Markdown 语法）"

.github/ISSUE_TEMPLATE/config.yml

@@ -1,6 +1,9 @@
 blank_issues_enabled: false
 
 contact_links:
-  - name: Get help in GitHub Discussions
-    url: https://github.com/Dreamacro/clash/discussions
-    about: Have a question? Not sure if your issue affects everyone reproducibly? The quickest way to get help is on Clash's GitHub Discussions!
+  - name: （中文）阅读 Wiki
+    url: https://dreamacro.github.io/clash/zh_CN/
+    about: 如果你是新手，或者想要了解 Clash 的更多信息，请阅读我们撰写的官方 Wiki
+  - name: (English) Read our Wiki page
+    url: https://dreamacro.github.io/clash/
+    about: If you are new to Clash, or want to know more about Clash, please read our Wiki page

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -1,36 +0,0 @@
-name: Feature request
-description: Suggest an idea for this project
-title: "[Feature] "
-body:
-  - type: checkboxes
-    id: ensure
-    attributes:
-      label: Verify steps
-      description: "
-在提交之前，请确认
-Please verify that you've followed these steps
-"
-      options:
-        - label: "
-我已经在 [Issue Tracker](……/) 中找过我要提出的请求
-I have searched on the [issue tracker](……/) for a related feature request.
-"
-          required: true
-        - label: "
-我已经仔细看过 [Documentation](https://github.com/Dreamacro/clash/wiki/) 并无法自行解决问题
-I have read the [documentation](https://github.com/Dreamacro/clash/wiki/) and was unable to solve the issue.
-"
-          required: true
-  - type: textarea
-    attributes:
-      label: Description
-      description: 请详细、清晰地表达你要提出的论述，例如这个问题如何影响到你？你想实现什么功能？目前 Clash Core 的行为是什麽？
-    validations:
-      required: true
-  - type: textarea
-    attributes:
-      label: Possible Solution
-      description: "
-此项非必须，但是如果你有想法的话欢迎提出。
-Not obligatory, but suggest a fix/reason for the bug, or ideas how to implement the addition or change
-"

.github/ISSUE_TEMPLATE/feature_request_en.yml

@@ -0,0 +1,43 @@
+name: (English) Feature request
+description: Suggest an idea for this project
+labels:
+  - enhancement
+title: "[Feature] <title>"
+body:
+  - type: markdown
+    attributes:
+      value: "## Welcome to the official Clash open-source community"
+
+  - type: markdown
+    attributes:
+      value: |
+        Thank you for taking the time to make a suggestion to the Clash core.  
+        
+        Prior to submitting this issue, please read and follow the guidelines below to ensure that your issue can be resolved as quickly as possible. Options marked with an asterisk (*) are required, while others are optional. If the information you provide does not comply with the requirements, the maintainers may not respond and may directly close the issue.  
+        
+        If you can implement your idea by yourself, we welcome you to submit a pull request to merge your changes upstream.
+
+  - type: checkboxes
+    id: ensure
+    attributes:
+      label: Prerequisites
+      description: "If any of the following options do not apply, please do not submit this issue as we will close it"
+      options:
+        - label: "I understand that this is the official open-source version of the Clash core, **only providing support for the open-source version or Premium version**"
+          required: true
+        - label: "I have looked for my idea in [the issue tracker](https://github.com/Dreamacro/clash/issues?q=is%3Aissue+label%3Aenhancement), **and found none of which being related**"
+          required: true
+        - label: "I have read the [official Wiki](https://dreamacro.github.io/clash/)"
+          required: true
+
+  - type: textarea
+    attributes:
+      label: Description
+      placeholder: "Please explain your suggestions in detail and in a clear manner. For instance, how does this issue impact you? What specific functionality are you hoping to achieve? Also, let us know what Clash Core is currently doing in terms of your suggestion, and what you would like it to do instead."
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Possible Solution
+      placeholder: "Do you have any ideas on the implementation details?"

.github/ISSUE_TEMPLATE/feature_request_zh.yml

@@ -0,0 +1,41 @@
+name: （中文）建议一个新功能
+description: 在这里提供一个的想法或建议
+labels:
+  - enhancement
+title: "[Feature] <标题>"
+body:
+  - type: markdown
+    attributes:
+      value: "## 欢迎来到 Clash 官方开源社区！"
+
+  - type: markdown
+    attributes:
+      value: |
+        感谢你拨冗为 Clash 内核提供建议。在提交之前，请仔细阅读并遵守以下指引，以确保你的建议能够被顺利采纳。  
+        带有星号（*）的选项为必填，其他可选填。**如果你填写的资料不符合规范，维护者可能不予回复，并直接关闭这个 issue。**
+        如果你可以自行添加这个功能，我们随时欢迎你提交 Pull Request，并将你的修改合并到上游。
+
+  - type: checkboxes
+    id: ensure
+    attributes:
+      label: 先决条件
+      description: "若以下任意选项不适用，请勿提交这个 issue，因为我们会把它关闭"
+      options:
+        - label: "我了解这里是 Clash 官方仓库，并非 Clash.Meta / OpenClash / ClashX / Clash For Windows 或其他任何衍生版本"
+          required: true
+        - label: "我已经在[这里](https://github.com/Dreamacro/clash/issues?q=is%3Aissue+label%3Aenhancement)找过我要提出的建议，**并且没有找到相关问题**"
+          required: true
+        - label: "我已经仔细阅读 [官方 Wiki](https://dreamacro.github.io/clash/) "
+          required: true
+
+  - type: textarea
+    attributes:
+      label: 描述
+      placeholder: 请详细、清晰地表达你要提出的论述，例如这个问题如何影响到你？你想实现什么功能？目前 Clash Core 的行为是什么？
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: 可能的解决方案
+      placeholder: 此项非必须，但是如果你有想法的话欢迎提出。

.github/workflows/deploy-docs.yml

@@ -0,0 +1,42 @@
+name: Deploy
+on:
+  workflow_dispatch: {}
+  push:
+    branches:
+      - master
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [20]
+    permissions:
+      pages: write
+      id-token: write
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - uses: pnpm/action-setup@v2
+        with:
+          version: latest
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Install dependencies
+        working-directory: docs
+        run: pnpm install --frozen-lockfile=false
+      - name: Build
+        working-directory: docs
+        run: pnpm run docs:build
+      - uses: actions/configure-pages@v2
+      - uses: actions/upload-pages-artifact@v1
+        with:
+          path: docs/.vitepress/dist
+      - name: Deploy
+        id: deployment
+        uses: actions/deploy-pages@v2

.github/workflows/docker.yml

@@ -43,7 +43,7 @@ jobs:
 
       - name: Build dev branch and push
         if: github.ref == 'refs/heads/dev'
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v4
         with:
           context: .
           platforms: linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64
@@ -70,7 +70,7 @@ jobs:
 
       - name: Build release and push
         if: startsWith(github.ref, 'refs/tags/')
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v4
         with:
           context: .
           platforms: linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64

.github/workflows/linter.yml

@@ -7,10 +7,10 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Setup Go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
           check-latest: true
-          go-version: '1.19'
+          go-version: '1.20'
 
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v3

.github/workflows/release.yml

@@ -5,16 +5,16 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Setup Go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
           check-latest: true
-          go-version: '1.19'
+          go-version: '1.20'
 
       - name: Check out code into the Go module directory
         uses: actions/checkout@v3
 
       - name: Cache go module
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: |
             ~/go/pkg/mod
@@ -32,7 +32,7 @@ jobs:
         env:
           NAME: clash
           BINDIR: bin
-        run: make -j releases
+        run: make -j $(go run ./test/main.go) releases
 
       - name: Upload Release
         uses: softprops/action-gh-release@v1

.github/workflows/stale.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/stale@v5
+      - uses: actions/stale@v7
         with:
           stale-issue-message: 'This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 5 days'
           days-before-stale: 60

.gitignore

@@ -23,3 +23,14 @@ vendor
 
 # test suite
 test/config/cache*
+
+# docs site generator
+node_modules
+package-lock.json
+pnpm-lock.yaml
+
+# docs site cache
+docs/.vitepress/cache
+
+# docs site build files
+docs/.vitepress/dist

.golangci.yaml

@@ -1,10 +1,16 @@
 linters:
   disable-all: true
   enable:
-    - gofumpt
-    - staticcheck
-    - govet
     - gci
+    - gofumpt
+    - gosimple
+    - govet
+    - ineffassign
+    - misspell
+    - staticcheck
+    - unconvert
+    - unused
+    - usestdlibvars
 
 linters-settings:
   gci:
@@ -14,4 +20,4 @@ linters-settings:
       - prefix(github.com/Dreamacro/clash)
       - default
   staticcheck:
-    go: '1.19'
+    go: '1.20'

Makefile

@@ -23,6 +23,8 @@ PLATFORM_LIST = \
 	linux-mipsle-hardfloat \
 	linux-mips64 \
 	linux-mips64le \
+	linux-riscv64 \
+	linux-loong64 \
 	freebsd-386 \
 	freebsd-amd64 \
 	freebsd-amd64-v3 \
@@ -85,6 +87,12 @@ linux-mips64:
 linux-mips64le:
 	GOARCH=mips64le GOOS=linux $(GOBUILD) -o $(BINDIR)/$(NAME)-$@
 
+linux-riscv64:
+	GOARCH=riscv64 GOOS=linux $(GOBUILD) -o $(BINDIR)/$(NAME)-$@	
+
+linux-loong64:
+	GOARCH=loong64 GOOS=linux $(GOBUILD) -o $(BINDIR)/$(NAME)-$@	
+
 freebsd-386:
 	GOARCH=386 GOOS=freebsd $(GOBUILD) -o $(BINDIR)/$(NAME)-$@
 
@@ -126,12 +134,15 @@ all-arch: $(PLATFORM_LIST) $(WINDOWS_ARCH_LIST)
 
 releases: $(gz_releases) $(zip_releases)
 
-lint:
-	GOOS=darwin golangci-lint run ./...
-	GOOS=windows golangci-lint run ./...
-	GOOS=linux golangci-lint run ./...
-	GOOS=freebsd golangci-lint run ./...
-	GOOS=openbsd golangci-lint run ./...
+LINT_OS_LIST := darwin windows linux freebsd openbsd
+
+lint: $(foreach os,$(LINT_OS_LIST),$(os)-lint)
+%-lint:
+	GOOS=$* golangci-lint run ./...
+
+lint-fix: $(foreach os,$(LINT_OS_LIST),$(os)-lint-fix)
+%-lint-fix:
+	GOOS=$* golangci-lint run --fix ./...
 
 clean:
 	rm $(BINDIR)/*

README.md

@@ -7,7 +7,7 @@
 
 <p align="center">
   <a href="https://github.com/Dreamacro/clash/actions">
-    <img src="https://img.shields.io/github/workflow/status/Dreamacro/clash/Go?style=flat-square" alt="Github Actions">
+    <img src="https://img.shields.io/github/actions/workflow/status/Dreamacro/clash/release.yml?branch=master&style=flat-square" alt="Github Actions">
   </a>
   <a href="https://goreportcard.com/report/github.com/Dreamacro/clash">
     <img src="https://goreportcard.com/badge/github.com/Dreamacro/clash?style=flat-square">
@@ -23,35 +23,28 @@
 
 ## Features
 
-- Local HTTP/HTTPS/SOCKS server with authentication support
-- Shadowsocks(R), VMess, Trojan, Snell, SOCKS5, HTTP(S) outbound support
-- Built-in [fake-ip](https://www.rfc-editor.org/rfc/rfc3089) DNS server that aims to minimize DNS pollution attack impact. DoH/DoT upstream supported.
-- Rules based off domains, GEOIP, IP-CIDR or process names to route packets to different destinations
-- Proxy groups allow users to implement powerful rules. Supports automatic fallback, load balancing or auto select proxy based off latency
-- Remote providers, allowing users to get proxy lists remotely instead of hardcoding in config
-- Transparent proxy: Redirect TCP and TProxy TCP/UDP with automatic route table/rule management
-- Hot-reload via the comprehensive HTTP RESTful API controller
+This is a general overview of the features that comes with Clash.  
 
-## Premium
+- Inbound: HTTP, HTTPS, SOCKS5 server, TUN device
+- Outbound: Shadowsocks(R), VMess, Trojan, Snell, SOCKS5, HTTP(S), Wireguard
+- Rule-based Routing: dynamic scripting, domain, IP addresses, process name and more
+- Fake-IP DNS: minimises impact on DNS pollution and improves network performance
+- Transparent Proxy: Redirect TCP and TProxy TCP/UDP with automatic route table/rule management
+- Proxy Groups: automatic fallback, load balancing or latency testing
+- Remote Providers: load remote proxy lists dynamically
+- RESTful API: update configuration in-place via a comprehensive API
 
-Premium core is proprietary. You can find their release notes and pre-built binaries [here](https://github.com/Dreamacro/clash/releases/tag/premium).
+*Some of the features may only be available in the [Premium core](https://dreamacro.github.io/clash/premium/introduction.html).*
 
-- gvisor/system stack TUN device on macOS, Linux and Windows ([ref](https://github.com/Dreamacro/clash/wiki/Clash-Premium-Features#tun-device))
-- Policy routing with [Scripts](https://github.com/Dreamacro/clash/wiki/Clash-Premium-Features#script)
-- Load your rules with [Rule Providers](https://github.com/Dreamacro/clash/wiki/Clash-Premium-Features#rule-providers)
-- Monitor Clash usage with a built-in profiling engine. ([Dreamacro/clash-tracing](https://github.com/Dreamacro/clash-tracing))
+## Documentation
 
-## Getting Started
-Documentations are available at [GitHub Wiki](https://github.com/Dreamacro/clash/wiki).
-
-## Development
-If you want to build a Go application that uses Clash as a library, check out the [GitHub Wiki](https://github.com/Dreamacro/clash/wiki/Using-Clash-in-your-Golang-program).
+You can find the latest documentation at [https://dreamacro.github.io/clash/](https://dreamacro.github.io/clash/).
 
 ## Credits
 
-* [riobard/go-shadowsocks2](https://github.com/riobard/go-shadowsocks2)
-* [v2ray/v2ray-core](https://github.com/v2ray/v2ray-core)
-* [WireGuard/wireguard-go](https://github.com/WireGuard/wireguard-go)
+- [riobard/go-shadowsocks2](https://github.com/riobard/go-shadowsocks2)
+- [v2ray/v2ray-core](https://github.com/v2ray/v2ray-core)
+- [WireGuard/wireguard-go](https://github.com/WireGuard/wireguard-go)
 
 ## License
 

adapter/adapter.go

@@ -94,6 +94,7 @@ func (p *Proxy) MarshalJSON() ([]byte, error) {
 	mapping := map[string]any{}
 	json.Unmarshal(inner, &mapping)
 	mapping["history"] = p.DelayHistory()
+	mapping["alive"] = p.Alive()
 	mapping["name"] = p.Name()
 	mapping["udp"] = p.SupportUDP()
 	return json.Marshal(mapping)
@@ -101,12 +102,13 @@ func (p *Proxy) MarshalJSON() ([]byte, error) {
 
 // URLTest get the delay for the specified URL
 // implements C.Proxy
-func (p *Proxy) URLTest(ctx context.Context, url string) (t uint16, err error) {
+func (p *Proxy) URLTest(ctx context.Context, url string) (delay, meanDelay uint16, err error) {
 	defer func() {
 		p.alive.Store(err == nil)
 		record := C.DelayHistory{Time: time.Now()}
 		if err == nil {
-			record.Delay = t
+			record.Delay = delay
+			record.MeanDelay = meanDelay
 		}
 		p.history.Put(record)
 		if p.history.Len() > 10 {
@@ -156,7 +158,16 @@ func (p *Proxy) URLTest(ctx context.Context, url string) (t uint16, err error) {
 		return
 	}
 	resp.Body.Close()
-	t = uint16(time.Since(start) / time.Millisecond)
+	delay = uint16(time.Since(start) / time.Millisecond)
+
+	resp, err = client.Do(req)
+	if err != nil {
+		// ignore error because some server will hijack the connection and close immediately
+		return delay, 0, nil
+	}
+	resp.Body.Close()
+	meanDelay = uint16(time.Since(start) / time.Millisecond / 2)
+
 	return
 }
 

adapter/inbound/http.go

@@ -2,6 +2,7 @@ package inbound
 
 import (
 	"net"
+	"net/netip"
 
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/context"
@@ -9,7 +10,7 @@ import (
 )
 
 // NewHTTP receive normal http request and return HTTPContext
-func NewHTTP(target socks5.Addr, source net.Addr, conn net.Conn) *context.ConnContext {
+func NewHTTP(target socks5.Addr, source net.Addr, originTarget net.Addr, conn net.Conn) *context.ConnContext {
 	metadata := parseSocksAddr(target)
 	metadata.NetWork = C.TCP
 	metadata.Type = C.HTTP
@@ -17,5 +18,10 @@ func NewHTTP(target socks5.Addr, source net.Addr, conn net.Conn) *context.ConnCo
 		metadata.SrcIP = ip
 		metadata.SrcPort = port
 	}
+	if originTarget != nil {
+		if addrPort, err := netip.ParseAddrPort(originTarget.String()); err == nil {
+			metadata.OriginDst = addrPort
+		}
+	}
 	return context.NewConnContext(conn, metadata)
 }

adapter/inbound/https.go

@@ -3,6 +3,7 @@ package inbound
 import (
 	"net"
 	"net/http"
+	"net/netip"
 
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/context"
@@ -16,5 +17,8 @@ func NewHTTPS(request *http.Request, conn net.Conn) *context.ConnContext {
 		metadata.SrcIP = ip
 		metadata.SrcPort = port
 	}
+	if addrPort, err := netip.ParseAddrPort(conn.LocalAddr().String()); err == nil {
+		metadata.OriginDst = addrPort
+	}
 	return context.NewConnContext(conn, metadata)
 }

adapter/inbound/packet.go

@@ -1,6 +1,9 @@
 package inbound
 
 import (
+	"net"
+	"net/netip"
+
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/transport/socks5"
 )
@@ -17,7 +20,7 @@ func (s *PacketAdapter) Metadata() *C.Metadata {
 }
 
 // NewPacket is PacketAdapter generator
-func NewPacket(target socks5.Addr, packet C.UDPPacket, source C.Type) *PacketAdapter {
+func NewPacket(target socks5.Addr, originTarget net.Addr, packet C.UDPPacket, source C.Type) *PacketAdapter {
 	metadata := parseSocksAddr(target)
 	metadata.NetWork = C.UDP
 	metadata.Type = source
@@ -25,7 +28,11 @@ func NewPacket(target socks5.Addr, packet C.UDPPacket, source C.Type) *PacketAda
 		metadata.SrcIP = ip
 		metadata.SrcPort = port
 	}
-
+	if originTarget != nil {
+		if addrPort, err := netip.ParseAddrPort(originTarget.String()); err == nil {
+			metadata.OriginDst = addrPort
+		}
+	}
 	return &PacketAdapter{
 		UDPPacket: packet,
 		metadata:  metadata,

adapter/inbound/socket.go

@@ -2,6 +2,7 @@ package inbound
 
 import (
 	"net"
+	"net/netip"
 
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/context"
@@ -17,6 +18,8 @@ func NewSocket(target socks5.Addr, conn net.Conn, source C.Type) *context.ConnCo
 		metadata.SrcIP = ip
 		metadata.SrcPort = port
 	}
-
+	if addrPort, err := netip.ParseAddrPort(conn.LocalAddr().String()); err == nil {
+		metadata.OriginDst = addrPort
+	}
 	return context.NewConnContext(conn, metadata)
 }

adapter/outbound/http.go

@@ -22,18 +22,20 @@ type Http struct {
 	user      string
 	pass      string
 	tlsConfig *tls.Config
+	Headers   http.Header
 }
 
 type HttpOption struct {
 	BasicOption
-	Name           string `proxy:"name"`
-	Server         string `proxy:"server"`
-	Port           int    `proxy:"port"`
-	UserName       string `proxy:"username,omitempty"`
-	Password       string `proxy:"password,omitempty"`
-	TLS            bool   `proxy:"tls,omitempty"`
-	SNI            string `proxy:"sni,omitempty"`
-	SkipCertVerify bool   `proxy:"skip-cert-verify,omitempty"`
+	Name           string            `proxy:"name"`
+	Server         string            `proxy:"server"`
+	Port           int               `proxy:"port"`
+	UserName       string            `proxy:"username,omitempty"`
+	Password       string            `proxy:"password,omitempty"`
+	TLS            bool              `proxy:"tls,omitempty"`
+	SNI            string            `proxy:"sni,omitempty"`
+	SkipCertVerify bool              `proxy:"skip-cert-verify,omitempty"`
+	Headers        map[string]string `proxy:"headers,omitempty"`
 }
 
 // StreamConn implements C.ProxyAdapter
@@ -63,7 +65,9 @@ func (h *Http) DialContext(ctx context.Context, metadata *C.Metadata, opts ...di
 	}
 	tcpKeepAlive(c)
 
-	defer safeConnClose(c, err)
+	defer func(c net.Conn) {
+		safeConnClose(c, err)
+	}(c)
 
 	c, err = h.StreamConn(c, metadata)
 	if err != nil {
@@ -80,12 +84,12 @@ func (h *Http) shakeHand(metadata *C.Metadata, rw io.ReadWriter) error {
 		URL: &url.URL{
 			Host: addr,
 		},
-		Host: addr,
-		Header: http.Header{
-			"Proxy-Connection": []string{"Keep-Alive"},
-		},
+		Host:   addr,
+		Header: h.Headers.Clone(),
 	}
 
+	req.Header.Add("Proxy-Connection", "Keep-Alive")
+
 	if h.user != "" && h.pass != "" {
 		auth := h.user + ":" + h.pass
 		req.Header.Add("Proxy-Authorization", "Basic "+base64.StdEncoding.EncodeToString([]byte(auth)))
@@ -132,6 +136,11 @@ func NewHttp(option HttpOption) *Http {
 		}
 	}
 
+	headers := http.Header{}
+	for name, value := range option.Headers {
+		headers.Add(name, value)
+	}
+
 	return &Http{
 		Base: &Base{
 			name:  option.Name,
@@ -143,5 +152,6 @@ func NewHttp(option HttpOption) *Http {
 		user:      option.UserName,
 		pass:      option.Password,
 		tlsConfig: tlsConfig,
+		Headers:   headers,
 	}
 }

adapter/outbound/shadowsocks.go

@@ -81,7 +81,9 @@ func (ss *ShadowSocks) DialContext(ctx context.Context, metadata *C.Metadata, op
 	}
 	tcpKeepAlive(c)
 
-	defer safeConnClose(c, err)
+	defer func(c net.Conn) {
+		safeConnClose(c, err)
+	}(c)
 
 	c, err = ss.StreamConn(c, metadata)
 	return NewConn(c, ss), err

adapter/outbound/shadowsocksr.go

@@ -66,7 +66,9 @@ func (ssr *ShadowSocksR) DialContext(ctx context.Context, metadata *C.Metadata,
 	}
 	tcpKeepAlive(c)
 
-	defer safeConnClose(c, err)
+	defer func(c net.Conn) {
+		safeConnClose(c, err)
+	}(c)
 
 	c, err = ssr.StreamConn(c, metadata)
 	return NewConn(c, ssr), err

adapter/outbound/snell.go

@@ -80,7 +80,9 @@ func (s *Snell) DialContext(ctx context.Context, metadata *C.Metadata, opts ...d
 	}
 	tcpKeepAlive(c)
 
-	defer safeConnClose(c, err)
+	defer func(c net.Conn) {
+		safeConnClose(c, err)
+	}(c)
 
 	c, err = s.StreamConn(c, metadata)
 	return NewConn(c, s), err

adapter/outbound/socks5.go

@@ -69,7 +69,9 @@ func (ss *Socks5) DialContext(ctx context.Context, metadata *C.Metadata, opts ..
 	}
 	tcpKeepAlive(c)
 
-	defer safeConnClose(c, err)
+	defer func(c net.Conn) {
+		safeConnClose(c, err)
+	}(c)
 
 	c, err = ss.StreamConn(c, metadata)
 	if err != nil {
@@ -95,7 +97,9 @@ func (ss *Socks5) ListenPacketContext(ctx context.Context, metadata *C.Metadata,
 		c = cc
 	}
 
-	defer safeConnClose(c, err)
+	defer func(c net.Conn) {
+		safeConnClose(c, err)
+	}(c)
 
 	tcpKeepAlive(c)
 	var user *socks5.User

adapter/outbound/trojan.go

@@ -109,7 +109,9 @@ func (t *Trojan) DialContext(ctx context.Context, metadata *C.Metadata, opts ...
 	}
 	tcpKeepAlive(c)
 
-	defer safeConnClose(c, err)
+	defer func(c net.Conn) {
+		safeConnClose(c, err)
+	}(c)
 
 	c, err = t.StreamConn(c, metadata)
 	if err != nil {
@@ -129,13 +131,17 @@ func (t *Trojan) ListenPacketContext(ctx context.Context, metadata *C.Metadata,
 		if err != nil {
 			return nil, fmt.Errorf("%s connect error: %w", t.addr, err)
 		}
-		defer safeConnClose(c, err)
+		defer func(c net.Conn) {
+			safeConnClose(c, err)
+		}(c)
 	} else {
 		c, err = dialer.DialContext(ctx, "tcp", t.addr, t.Base.DialOptions(opts...)...)
 		if err != nil {
 			return nil, fmt.Errorf("%s connect error: %w", t.addr, err)
 		}
-		defer safeConnClose(c, err)
+		defer func(c net.Conn) {
+			safeConnClose(c, err)
+		}(c)
 		tcpKeepAlive(c)
 		c, err = t.plainStream(c)
 		if err != nil {

adapter/outbound/util.go

@@ -1,7 +1,6 @@
 package outbound
 
 import (
-	"bytes"
 	"net"
 	"strconv"
 	"time"
@@ -9,6 +8,8 @@ import (
 	"github.com/Dreamacro/clash/component/resolver"
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/transport/socks5"
+
+	"github.com/Dreamacro/protobytes"
 )
 
 func tcpKeepAlive(c net.Conn) {
@@ -19,24 +20,24 @@ func tcpKeepAlive(c net.Conn) {
 }
 
 func serializesSocksAddr(metadata *C.Metadata) []byte {
-	var buf [][]byte
+	buf := protobytes.BytesWriter{}
+
 	addrType := metadata.AddrType()
-	aType := uint8(addrType)
+	buf.PutUint8(uint8(addrType))
+
 	p, _ := strconv.ParseUint(metadata.DstPort, 10, 16)
-	port := []byte{uint8(p >> 8), uint8(p & 0xff)}
 	switch addrType {
 	case socks5.AtypDomainName:
-		len := uint8(len(metadata.Host))
-		host := []byte(metadata.Host)
-		buf = [][]byte{{aType, len}, host, port}
+		buf.PutUint8(uint8(len(metadata.Host)))
+		buf.PutString(metadata.Host)
 	case socks5.AtypIPv4:
-		host := metadata.DstIP.To4()
-		buf = [][]byte{{aType}, host, port}
+		buf.PutSlice(metadata.DstIP.To4())
 	case socks5.AtypIPv6:
-		host := metadata.DstIP.To16()
-		buf = [][]byte{{aType}, host, port}
+		buf.PutSlice(metadata.DstIP.To16())
 	}
-	return bytes.Join(buf, nil)
+
+	buf.PutUint16be(uint16(p))
+	return buf.Bytes()
 }
 
 func resolveUDPAddr(network, address string) (*net.UDPAddr, error) {

adapter/outbound/vmess.go

@@ -20,6 +20,8 @@ import (
 	"golang.org/x/net/http2"
 )
 
+var ErrUDPRemoteAddrMismatch = errors.New("udp packet dropped due to mismatched remote address")
+
 type Vmess struct {
 	*Base
 	client *vmess.Client
@@ -193,7 +195,9 @@ func (v *Vmess) DialContext(ctx context.Context, metadata *C.Metadata, opts ...d
 		if err != nil {
 			return nil, err
 		}
-		defer safeConnClose(c, err)
+		defer func(c net.Conn) {
+			safeConnClose(c, err)
+		}(c)
 
 		c, err = v.client.StreamConn(c, parseVmessAddr(metadata))
 		if err != nil {
@@ -208,7 +212,9 @@ func (v *Vmess) DialContext(ctx context.Context, metadata *C.Metadata, opts ...d
 		return nil, fmt.Errorf("%s connect error: %s", v.addr, err.Error())
 	}
 	tcpKeepAlive(c)
-	defer safeConnClose(c, err)
+	defer func(c net.Conn) {
+		safeConnClose(c, err)
+	}(c)
 
 	c, err = v.StreamConn(c, metadata)
 	return NewConn(c, v), err
@@ -232,7 +238,9 @@ func (v *Vmess) ListenPacketContext(ctx context.Context, metadata *C.Metadata, o
 		if err != nil {
 			return nil, err
 		}
-		defer safeConnClose(c, err)
+		defer func(c net.Conn) {
+			safeConnClose(c, err)
+		}(c)
 
 		c, err = v.client.StreamConn(c, parseVmessAddr(metadata))
 	} else {
@@ -241,7 +249,9 @@ func (v *Vmess) ListenPacketContext(ctx context.Context, metadata *C.Metadata, o
 			return nil, fmt.Errorf("%s connect error: %s", v.addr, err.Error())
 		}
 		tcpKeepAlive(c)
-		defer safeConnClose(c, err)
+		defer func(c net.Conn) {
+			safeConnClose(c, err)
+		}(c)
 
 		c, err = v.StreamConn(c, metadata)
 	}
@@ -330,15 +340,15 @@ func parseVmessAddr(metadata *C.Metadata) *vmess.DstAddr {
 	var addr []byte
 	switch metadata.AddrType() {
 	case socks5.AtypIPv4:
-		addrType = byte(vmess.AtypIPv4)
+		addrType = vmess.AtypIPv4
 		addr = make([]byte, net.IPv4len)
 		copy(addr[:], metadata.DstIP.To4())
 	case socks5.AtypIPv6:
-		addrType = byte(vmess.AtypIPv6)
+		addrType = vmess.AtypIPv6
 		addr = make([]byte, net.IPv6len)
 		copy(addr[:], metadata.DstIP.To16())
 	case socks5.AtypDomainName:
-		addrType = byte(vmess.AtypDomainName)
+		addrType = vmess.AtypDomainName
 		addr = make([]byte, len(metadata.Host)+1)
 		addr[0] = byte(len(metadata.Host))
 		copy(addr[1:], []byte(metadata.Host))
@@ -358,7 +368,14 @@ type vmessPacketConn struct {
 	rAddr net.Addr
 }
 
+// WriteTo implments C.PacketConn.WriteTo
+// Since VMess doesn't support full cone NAT by design, we verify if addr matches uc.rAddr, and drop the packet if not.
 func (uc *vmessPacketConn) WriteTo(b []byte, addr net.Addr) (int, error) {
+	allowedAddr := uc.rAddr.(*net.UDPAddr)
+	destAddr := addr.(*net.UDPAddr)
+	if !(allowedAddr.IP.Equal(destAddr.IP) && allowedAddr.Port == destAddr.Port) {
+		return 0, ErrUDPRemoteAddrMismatch
+	}
 	return uc.Conn.Write(b)
 }
 

adapter/outboundgroup/parser.go

@@ -9,6 +9,8 @@ import (
 	"github.com/Dreamacro/clash/common/structure"
 	C "github.com/Dreamacro/clash/constant"
 	types "github.com/Dreamacro/clash/constant/provider"
+
+	regexp "github.com/dlclark/regexp2"
 )
 
 var (
@@ -29,6 +31,7 @@ type GroupCommonOption struct {
 	Interval   int      `group:"interval,omitempty"`
 	Lazy       bool     `group:"lazy,omitempty"`
 	DisableUDP bool     `group:"disable-udp,omitempty"`
+	Filter     string   `group:"filter,omitempty"`
 }
 
 func ParseProxyGroup(config map[string]any, proxyMap map[string]C.Proxy, providersMap map[string]types.ProxyProvider) (C.ProxyAdapter, error) {
@@ -45,22 +48,33 @@ func ParseProxyGroup(config map[string]any, proxyMap map[string]C.Proxy, provide
 		return nil, errFormat
 	}
 
-	groupName := groupOption.Name
+	var (
+		groupName = groupOption.Name
+		filterReg *regexp.Regexp
+	)
 
-	providers := []types.ProxyProvider{}
+	if groupOption.Filter != "" {
+		f, err := regexp.Compile(groupOption.Filter, regexp.None)
+		if err != nil {
+			return nil, fmt.Errorf("%s: invalid filter regex: %w", groupName, err)
+		}
+		filterReg = f
+	}
 
 	if len(groupOption.Proxies) == 0 && len(groupOption.Use) == 0 {
-		return nil, errMissProxy
+		return nil, fmt.Errorf("%s: %w", groupName, errMissProxy)
 	}
 
+	providers := []types.ProxyProvider{}
+
 	if len(groupOption.Proxies) != 0 {
 		ps, err := getProxies(proxyMap, groupOption.Proxies)
 		if err != nil {
-			return nil, err
+			return nil, fmt.Errorf("%s: %w", groupName, err)
 		}
 
 		if _, ok := providersMap[groupName]; ok {
-			return nil, errDuplicateProvider
+			return nil, fmt.Errorf("%s: %w", groupName, errDuplicateProvider)
 		}
 
 		// select don't need health check
@@ -68,20 +82,20 @@ func ParseProxyGroup(config map[string]any, proxyMap map[string]C.Proxy, provide
 			hc := provider.NewHealthCheck(ps, "", 0, true)
 			pd, err := provider.NewCompatibleProvider(groupName, ps, hc)
 			if err != nil {
-				return nil, err
+				return nil, fmt.Errorf("%s: %w", groupName, err)
 			}
 
 			providers = append(providers, pd)
 			providersMap[groupName] = pd
 		} else {
 			if groupOption.URL == "" || groupOption.Interval == 0 {
-				return nil, errMissHealthCheck
+				return nil, fmt.Errorf("%s: %w", groupName, errMissHealthCheck)
 			}
 
 			hc := provider.NewHealthCheck(ps, groupOption.URL, uint(groupOption.Interval), groupOption.Lazy)
 			pd, err := provider.NewCompatibleProvider(groupName, ps, hc)
 			if err != nil {
-				return nil, err
+				return nil, fmt.Errorf("%s: %w", groupName, err)
 			}
 
 			providers = append(providers, pd)
@@ -92,9 +106,14 @@ func ParseProxyGroup(config map[string]any, proxyMap map[string]C.Proxy, provide
 	if len(groupOption.Use) != 0 {
 		list, err := getProviders(providersMap, groupOption.Use)
 		if err != nil {
-			return nil, err
+			return nil, fmt.Errorf("%s: %w", groupName, err)
+		}
+		if filterReg != nil {
+			pd := provider.NewFilterableProvider(groupName, list, filterReg)
+			providers = append(providers, pd)
+		} else {
+			providers = append(providers, list...)
 		}
-		providers = append(providers, list...)
 	}
 
 	var group C.ProxyAdapter
@@ -112,7 +131,7 @@ func ParseProxyGroup(config map[string]any, proxyMap map[string]C.Proxy, provide
 	case "relay":
 		group = NewRelay(groupOption, providers)
 	default:
-		return nil, fmt.Errorf("%w: %s", errType, groupOption.Type)
+		return nil, fmt.Errorf("%s %w: %s", groupName, errType, groupOption.Type)
 	}
 
 	return group, nil

adapter/provider/fetcher.go

@@ -21,6 +21,7 @@ type parser = func([]byte) (any, error)
 type fetcher struct {
 	name      string
 	vehicle   types.Vehicle
+	interval  time.Duration
 	updatedAt *time.Time
 	ticker    *time.Ticker
 	done      chan struct{}
@@ -39,15 +40,17 @@ func (f *fetcher) VehicleType() types.VehicleType {
 
 func (f *fetcher) Initial() (any, error) {
 	var (
-		buf     []byte
-		err     error
-		isLocal bool
+		buf               []byte
+		err               error
+		isLocal           bool
+		immediatelyUpdate bool
 	)
 	if stat, fErr := os.Stat(f.vehicle.Path()); fErr == nil {
 		buf, err = os.ReadFile(f.vehicle.Path())
 		modTime := stat.ModTime()
 		f.updatedAt = &modTime
 		isLocal = true
+		immediatelyUpdate = time.Since(modTime) > f.interval
 	} else {
 		buf, err = f.vehicle.Read()
 	}
@@ -86,7 +89,7 @@ func (f *fetcher) Initial() (any, error) {
 
 	// pull proxies automatically
 	if f.ticker != nil {
-		go f.pullLoop()
+		go f.pullLoop(immediatelyUpdate)
 	}
 
 	return proxies, nil
@@ -130,25 +133,33 @@ func (f *fetcher) Destroy() error {
 	return nil
 }
 
-func (f *fetcher) pullLoop() {
+func (f *fetcher) pullLoop(immediately bool) {
+	update := func() {
+		elm, same, err := f.Update()
+		if err != nil {
+			log.Warnln("[Provider] %s pull error: %s", f.Name(), err.Error())
+			return
+		}
+
+		if same {
+			log.Debugln("[Provider] %s's proxies doesn't change", f.Name())
+			return
+		}
+
+		log.Infoln("[Provider] %s's proxies update", f.Name())
+		if f.onUpdate != nil {
+			f.onUpdate(elm)
+		}
+	}
+
+	if immediately {
+		update()
+	}
+
 	for {
 		select {
 		case <-f.ticker.C:
-			elm, same, err := f.Update()
-			if err != nil {
-				log.Warnln("[Provider] %s pull error: %s", f.Name(), err.Error())
-				continue
-			}
-
-			if same {
-				log.Debugln("[Provider] %s's proxies doesn't change", f.Name())
-				continue
-			}
-
-			log.Infoln("[Provider] %s's proxies update", f.Name())
-			if f.onUpdate != nil {
-				f.onUpdate(elm)
-			}
+			update()
 		case <-f.done:
 			f.ticker.Stop()
 			return
@@ -178,6 +189,7 @@ func newFetcher(name string, interval time.Duration, vehicle types.Vehicle, pars
 		name:     name,
 		ticker:   ticker,
 		vehicle:  vehicle,
+		interval: interval,
 		parser:   parser,
 		done:     make(chan struct{}, 1),
 		onUpdate: onUpdate,

adapter/provider/healthcheck.go

@@ -7,6 +7,7 @@ import (
 	"github.com/Dreamacro/clash/common/batch"
 	C "github.com/Dreamacro/clash/constant"
 
+	"github.com/samber/lo"
 	"go.uber.org/atomic"
 )
 
@@ -31,13 +32,20 @@ type HealthCheck struct {
 func (hc *HealthCheck) process() {
 	ticker := time.NewTicker(time.Duration(hc.interval) * time.Second)
 
-	go hc.check()
+	go hc.checkAll()
 	for {
 		select {
 		case <-ticker.C:
 			now := time.Now().Unix()
 			if !hc.lazy || now-hc.lastTouch.Load() < int64(hc.interval) {
-				hc.check()
+				hc.checkAll()
+			} else { // lazy but still need to check not alive proxies
+				notAliveProxies := lo.Filter(hc.proxies, func(proxy C.Proxy, _ int) bool {
+					return !proxy.Alive()
+				})
+				if len(notAliveProxies) != 0 {
+					hc.check(notAliveProxies)
+				}
 			}
 		case <-hc.done:
 			ticker.Stop()
@@ -58,9 +66,13 @@ func (hc *HealthCheck) touch() {
 	hc.lastTouch.Store(time.Now().Unix())
 }
 
-func (hc *HealthCheck) check() {
+func (hc *HealthCheck) checkAll() {
+	hc.check(hc.proxies)
+}
+
+func (hc *HealthCheck) check(proxies []C.Proxy) {
 	b, _ := batch.New(context.Background(), batch.WithConcurrencyNum(10))
-	for _, proxy := range hc.proxies {
+	for _, proxy := range proxies {
 		p := proxy
 		b.Go(p.Name(), func() (any, error) {
 			ctx, cancel := context.WithTimeout(context.Background(), defaultURLTestTimeout)

adapter/provider/parser.go

@@ -10,7 +10,10 @@ import (
 	types "github.com/Dreamacro/clash/constant/provider"
 )
 
-var errVehicleType = errors.New("unsupport vehicle type")
+var (
+	errVehicleType = errors.New("unsupport vehicle type")
+	errSubPath     = errors.New("path is not subpath of home directory")
+)
 
 type healthCheckSchema struct {
 	Enable   bool   `provider:"enable"`
@@ -53,6 +56,9 @@ func ParseProxyProvider(name string, mapping map[string]any) (types.ProxyProvide
 	case "file":
 		vehicle = NewFileVehicle(path)
 	case "http":
+		if !C.Path.IsSubPath(path) {
+			return nil, fmt.Errorf("%w: %s", errSubPath, path)
+		}
 		vehicle = NewHTTPVehicle(schema.URL, path)
 	default:
 		return nil, fmt.Errorf("%w: %s", errVehicleType, schema.Type)

adapter/provider/provider.go

@@ -4,17 +4,22 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"regexp"
 	"runtime"
 	"time"
 
 	"github.com/Dreamacro/clash/adapter"
+	"github.com/Dreamacro/clash/adapter/outbound"
+	"github.com/Dreamacro/clash/common/singledo"
 	C "github.com/Dreamacro/clash/constant"
 	types "github.com/Dreamacro/clash/constant/provider"
 
+	regexp "github.com/dlclark/regexp2"
+	"github.com/samber/lo"
 	"gopkg.in/yaml.v3"
 )
 
+var reject = adapter.NewProxy(outbound.NewReject())
+
 const (
 	ReservedName = "default"
 )
@@ -49,7 +54,7 @@ func (pp *proxySetProvider) Name() string {
 }
 
 func (pp *proxySetProvider) HealthCheck() {
-	pp.healthCheck.check()
+	pp.healthCheck.checkAll()
 }
 
 func (pp *proxySetProvider) Update() error {
@@ -86,7 +91,7 @@ func (pp *proxySetProvider) setProxies(proxies []C.Proxy) {
 	pp.proxies = proxies
 	pp.healthCheck.setProxy(proxies)
 	if pp.healthCheck.auto() {
-		go pp.healthCheck.check()
+		go pp.healthCheck.checkAll()
 	}
 }
 
@@ -96,7 +101,7 @@ func stopProxyProvider(pd *ProxySetProvider) {
 }
 
 func NewProxySetProvider(name string, interval time.Duration, filter string, vehicle types.Vehicle, hc *HealthCheck) (*ProxySetProvider, error) {
-	filterReg, err := regexp.Compile(filter)
+	filterReg, err := regexp.Compile(filter, regexp.None)
 	if err != nil {
 		return nil, fmt.Errorf("invalid filter regex: %w", err)
 	}
@@ -128,8 +133,14 @@ func NewProxySetProvider(name string, interval time.Duration, filter string, veh
 
 		proxies := []C.Proxy{}
 		for idx, mapping := range schema.Proxies {
-			if name, ok := mapping["name"].(string); ok && len(filter) > 0 && !filterReg.MatchString(name) {
-				continue
+			if name, ok := mapping["name"].(string); ok && len(filter) > 0 {
+				matched, err := filterReg.MatchString(name)
+				if err != nil {
+					return nil, fmt.Errorf("regex filter failed: %w", err)
+				}
+				if !matched {
+					continue
+				}
 			}
 			proxy, err := adapter.ParseProxy(mapping)
 			if err != nil {
@@ -181,7 +192,7 @@ func (cp *compatibleProvider) Name() string {
 }
 
 func (cp *compatibleProvider) HealthCheck() {
-	cp.healthCheck.check()
+	cp.healthCheck.checkAll()
 }
 
 func (cp *compatibleProvider) Update() error {
@@ -231,3 +242,81 @@ func NewCompatibleProvider(name string, proxies []C.Proxy, hc *HealthCheck) (*Co
 	runtime.SetFinalizer(wrapper, stopCompatibleProvider)
 	return wrapper, nil
 }
+
+var _ types.ProxyProvider = (*FilterableProvider)(nil)
+
+type FilterableProvider struct {
+	name      string
+	providers []types.ProxyProvider
+	filterReg *regexp.Regexp
+	single    *singledo.Single
+}
+
+func (fp *FilterableProvider) MarshalJSON() ([]byte, error) {
+	return json.Marshal(map[string]any{
+		"name":        fp.Name(),
+		"type":        fp.Type().String(),
+		"vehicleType": fp.VehicleType().String(),
+		"proxies":     fp.Proxies(),
+	})
+}
+
+func (fp *FilterableProvider) Name() string {
+	return fp.name
+}
+
+func (fp *FilterableProvider) HealthCheck() {
+}
+
+func (fp *FilterableProvider) Update() error {
+	return nil
+}
+
+func (fp *FilterableProvider) Initial() error {
+	return nil
+}
+
+func (fp *FilterableProvider) VehicleType() types.VehicleType {
+	return types.Compatible
+}
+
+func (fp *FilterableProvider) Type() types.ProviderType {
+	return types.Proxy
+}
+
+func (fp *FilterableProvider) Proxies() []C.Proxy {
+	elm, _, _ := fp.single.Do(func() (any, error) {
+		proxies := lo.FlatMap(
+			fp.providers,
+			func(item types.ProxyProvider, _ int) []C.Proxy {
+				return lo.Filter(
+					item.Proxies(),
+					func(item C.Proxy, _ int) bool {
+						matched, _ := fp.filterReg.MatchString(item.Name())
+						return matched
+					})
+			})
+
+		if len(proxies) == 0 {
+			proxies = append(proxies, reject)
+		}
+		return proxies, nil
+	})
+
+	return elm.([]C.Proxy)
+}
+
+func (fp *FilterableProvider) Touch() {
+	for _, provider := range fp.providers {
+		provider.Touch()
+	}
+}
+
+func NewFilterableProvider(name string, providers []types.ProxyProvider, filterReg *regexp.Regexp) *FilterableProvider {
+	return &FilterableProvider{
+		name:      name,
+		providers: providers,
+		filterReg: filterReg,
+		single:    singledo.NewSingle(time.Second * 10),
+	}
+}

common/pool/alloc.go

@@ -32,23 +32,32 @@ func NewAllocator() *Allocator {
 
 // Get a []byte from pool with most appropriate cap
 func (alloc *Allocator) Get(size int) []byte {
-	if size <= 0 || size > 65536 {
+	switch {
+	case size < 0:
+		panic("alloc.Get: len out of range")
+	case size == 0:
 		return nil
-	}
+	case size > 65536:
+		return make([]byte, size)
+	default:
+		bits := msb(size)
+		if size == 1<<bits {
+			return alloc.buffers[bits].Get().([]byte)[:size]
+		}
 
-	bits := msb(size)
-	if size == 1<<bits {
-		return alloc.buffers[bits].Get().([]byte)[:size]
+		return alloc.buffers[bits+1].Get().([]byte)[:size]
 	}
-
-	return alloc.buffers[bits+1].Get().([]byte)[:size]
 }
 
 // Put returns a []byte to pool for future use,
 // which the cap must be exactly 2^n
 func (alloc *Allocator) Put(buf []byte) error {
+	if cap(buf) == 0 || cap(buf) > 65536 {
+		return nil
+	}
+
 	bits := msb(cap(buf))
-	if cap(buf) == 0 || cap(buf) > 65536 || cap(buf) != 1<<bits {
+	if cap(buf) != 1<<bits {
 		return errors.New("allocator Put() incorrect buffer size")
 	}
 

common/pool/alloc_test.go

@@ -19,17 +19,17 @@ func TestAllocGet(t *testing.T) {
 	assert.Equal(t, 1024, cap(alloc.Get(1023)))
 	assert.Equal(t, 1024, len(alloc.Get(1024)))
 	assert.Equal(t, 65536, len(alloc.Get(65536)))
-	assert.Nil(t, alloc.Get(65537))
+	assert.Equal(t, 65537, len(alloc.Get(65537)))
 }
 
 func TestAllocPut(t *testing.T) {
 	alloc := NewAllocator()
-	assert.NotNil(t, alloc.Put(nil), "put nil misbehavior")
+	assert.Nil(t, alloc.Put(nil), "put nil misbehavior")
 	assert.NotNil(t, alloc.Put(make([]byte, 3)), "put elem:3 []bytes misbehavior")
 	assert.Nil(t, alloc.Put(make([]byte, 4)), "put elem:4 []bytes misbehavior")
 	assert.Nil(t, alloc.Put(make([]byte, 1023, 1024)), "put elem:1024 []bytes misbehavior")
 	assert.Nil(t, alloc.Put(make([]byte, 65536)), "put elem:65536 []bytes misbehavior")
-	assert.NotNil(t, alloc.Put(make([]byte, 65537)), "put elem:65537 []bytes misbehavior")
+	assert.Nil(t, alloc.Put(make([]byte, 65537)), "put elem:65537 []bytes misbehavior")
 }
 
 func TestAllocPutThenGet(t *testing.T) {

common/pool/buffer.go

@@ -3,9 +3,14 @@ package pool
 import (
 	"bytes"
 	"sync"
+
+	"github.com/Dreamacro/protobytes"
 )
 
-var bufferPool = sync.Pool{New: func() any { return &bytes.Buffer{} }}
+var (
+	bufferPool      = sync.Pool{New: func() any { return &bytes.Buffer{} }}
+	bytesBufferPool = sync.Pool{New: func() any { return &protobytes.BytesWriter{} }}
+)
 
 func GetBuffer() *bytes.Buffer {
 	return bufferPool.Get().(*bytes.Buffer)
@@ -15,3 +20,12 @@ func PutBuffer(buf *bytes.Buffer) {
 	buf.Reset()
 	bufferPool.Put(buf)
 }
+
+func GetBytesBuffer() *protobytes.BytesWriter {
+	return bytesBufferPool.Get().(*protobytes.BytesWriter)
+}
+
+func PutBytesBuffer(buf *protobytes.BytesWriter) {
+	buf.Reset()
+	bytesBufferPool.Put(buf)
+}

component/dhcp/conn.go

@@ -14,5 +14,15 @@ func ListenDHCPClient(ctx context.Context, ifaceName string) (net.PacketConn, er
 		listenAddr = "255.255.255.255:68"
 	}
 
-	return dialer.ListenPacket(ctx, "udp4", listenAddr, dialer.WithInterface(ifaceName), dialer.WithAddrReuse(true))
+	options := []dialer.Option{
+		dialer.WithInterface(ifaceName),
+		dialer.WithAddrReuse(true),
+	}
+
+	// fallback bind on windows, because syscall bind can not receive broadcast
+	if runtime.GOOS == "windows" {
+		options = append(options, dialer.WithFallbackBind(true))
+	}
+
+	return dialer.ListenPacket(ctx, "udp4", listenAddr, options...)
 }

component/dialer/bind_others.go

@@ -1,57 +1,12 @@
-//go:build !linux && !darwin
+//go:build !linux && !darwin && !windows
 
 package dialer
 
 import (
 	"net"
 	"strconv"
-	"strings"
-
-	"github.com/Dreamacro/clash/component/iface"
 )
 
-func lookupLocalAddr(ifaceName string, network string, destination net.IP, port int) (net.Addr, error) {
-	ifaceObj, err := iface.ResolveInterface(ifaceName)
-	if err != nil {
-		return nil, err
-	}
-
-	var addr *net.IPNet
-	switch network {
-	case "udp4", "tcp4":
-		addr, err = ifaceObj.PickIPv4Addr(destination)
-	case "tcp6", "udp6":
-		addr, err = ifaceObj.PickIPv6Addr(destination)
-	default:
-		if destination != nil {
-			if destination.To4() != nil {
-				addr, err = ifaceObj.PickIPv4Addr(destination)
-			} else {
-				addr, err = ifaceObj.PickIPv6Addr(destination)
-			}
-		} else {
-			addr, err = ifaceObj.PickIPv4Addr(destination)
-		}
-	}
-	if err != nil {
-		return nil, err
-	}
-
-	if strings.HasPrefix(network, "tcp") {
-		return &net.TCPAddr{
-			IP:   addr.IP,
-			Port: port,
-		}, nil
-	} else if strings.HasPrefix(network, "udp") {
-		return &net.UDPAddr{
-			IP:   addr.IP,
-			Port: port,
-		}, nil
-	}
-
-	return nil, iface.ErrAddrNotFound
-}
-
 func bindIfaceToDialer(ifaceName string, dialer *net.Dialer, network string, destination net.IP) error {
 	if !destination.IsGlobalUnicast() {
 		return nil

component/dialer/bind_windows.go

@@ -0,0 +1,98 @@
+package dialer
+
+import (
+	"encoding/binary"
+	"net"
+	"strings"
+	"syscall"
+	"unsafe"
+
+	"github.com/Dreamacro/clash/component/iface"
+
+	"golang.org/x/sys/windows"
+)
+
+const (
+	IP_UNICAST_IF   = 31
+	IPV6_UNICAST_IF = 31
+)
+
+type controlFn = func(network, address string, c syscall.RawConn) error
+
+func bindControl(ifaceIdx int, chain controlFn) controlFn {
+	return func(network, address string, c syscall.RawConn) (err error) {
+		defer func() {
+			if err == nil && chain != nil {
+				err = chain(network, address, c)
+			}
+		}()
+
+		ipStr, _, err := net.SplitHostPort(address)
+		if err == nil {
+			ip := net.ParseIP(ipStr)
+			if ip != nil && !ip.IsGlobalUnicast() {
+				return
+			}
+		}
+
+		var innerErr error
+		err = c.Control(func(fd uintptr) {
+			if ipStr == "" && strings.HasPrefix(network, "udp") {
+				// When listening udp ":0", we should bind socket to interface4 and interface6 at the same time
+				// and ignore the error of bind6
+				_ = bindSocketToInterface6(windows.Handle(fd), ifaceIdx)
+				innerErr = bindSocketToInterface4(windows.Handle(fd), ifaceIdx)
+				return
+			}
+			switch network {
+			case "tcp4", "udp4":
+				innerErr = bindSocketToInterface4(windows.Handle(fd), ifaceIdx)
+			case "tcp6", "udp6":
+				innerErr = bindSocketToInterface6(windows.Handle(fd), ifaceIdx)
+			}
+		})
+
+		if innerErr != nil {
+			err = innerErr
+		}
+
+		return
+	}
+}
+
+func bindSocketToInterface4(handle windows.Handle, ifaceIdx int) error {
+	// MSDN says for IPv4 this needs to be in net byte order, so that it's like an IP address with leading zeros.
+	// Ref: https://learn.microsoft.com/en-us/windows/win32/winsock/ipproto-ip-socket-options
+	var bytes [4]byte
+	binary.BigEndian.PutUint32(bytes[:], uint32(ifaceIdx))
+	index := *(*uint32)(unsafe.Pointer(&bytes[0]))
+	err := windows.SetsockoptInt(handle, windows.IPPROTO_IP, IP_UNICAST_IF, int(index))
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func bindSocketToInterface6(handle windows.Handle, ifaceIdx int) error {
+	return windows.SetsockoptInt(handle, windows.IPPROTO_IPV6, IPV6_UNICAST_IF, ifaceIdx)
+}
+
+func bindIfaceToDialer(ifaceName string, dialer *net.Dialer, _ string, _ net.IP) error {
+	ifaceObj, err := iface.ResolveInterface(ifaceName)
+	if err != nil {
+		return err
+	}
+
+	dialer.Control = bindControl(ifaceObj.Index, dialer.Control)
+	return nil
+}
+
+func bindIfaceToListenConfig(ifaceName string, lc *net.ListenConfig, _, address string) (string, error) {
+	ifaceObj, err := iface.ResolveInterface(ifaceName)
+	if err != nil {
+		return "", err
+	}
+
+	lc.Control = bindControl(ifaceObj.Index, lc.Control)
+	return address, nil
+}

component/dialer/dialer.go

@@ -51,7 +51,15 @@ func ListenPacket(ctx context.Context, network, address string, options ...Optio
 
 	lc := &net.ListenConfig{}
 	if cfg.interfaceName != "" {
-		addr, err := bindIfaceToListenConfig(cfg.interfaceName, lc, network, address)
+		var (
+			addr string
+			err  error
+		)
+		if cfg.fallbackBind {
+			addr, err = fallbackBindIfaceToListenConfig(cfg.interfaceName, lc, network, address)
+		} else {
+			addr, err = bindIfaceToListenConfig(cfg.interfaceName, lc, network, address)
+		}
 		if err != nil {
 			return nil, err
 		}
@@ -83,8 +91,14 @@ func dialContext(ctx context.Context, network string, destination net.IP, port s
 
 	dialer := &net.Dialer{}
 	if opt.interfaceName != "" {
-		if err := bindIfaceToDialer(opt.interfaceName, dialer, network, destination); err != nil {
-			return nil, err
+		if opt.fallbackBind {
+			if err := fallbackBindIfaceToDialer(opt.interfaceName, dialer, network, destination); err != nil {
+				return nil, err
+			}
+		} else {
+			if err := bindIfaceToDialer(opt.interfaceName, dialer, network, destination); err != nil {
+				return nil, err
+			}
 		}
 	}
 	if opt.routingMark != 0 {

component/dialer/fallbackbind.go

@@ -0,0 +1,90 @@
+package dialer
+
+import (
+	"net"
+	"strconv"
+	"strings"
+
+	"github.com/Dreamacro/clash/component/iface"
+)
+
+func lookupLocalAddr(ifaceName string, network string, destination net.IP, port int) (net.Addr, error) {
+	ifaceObj, err := iface.ResolveInterface(ifaceName)
+	if err != nil {
+		return nil, err
+	}
+
+	var addr *net.IPNet
+	switch network {
+	case "udp4", "tcp4":
+		addr, err = ifaceObj.PickIPv4Addr(destination)
+	case "tcp6", "udp6":
+		addr, err = ifaceObj.PickIPv6Addr(destination)
+	default:
+		if destination != nil {
+			if destination.To4() != nil {
+				addr, err = ifaceObj.PickIPv4Addr(destination)
+			} else {
+				addr, err = ifaceObj.PickIPv6Addr(destination)
+			}
+		} else {
+			addr, err = ifaceObj.PickIPv4Addr(destination)
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+
+	if strings.HasPrefix(network, "tcp") {
+		return &net.TCPAddr{
+			IP:   addr.IP,
+			Port: port,
+		}, nil
+	} else if strings.HasPrefix(network, "udp") {
+		return &net.UDPAddr{
+			IP:   addr.IP,
+			Port: port,
+		}, nil
+	}
+
+	return nil, iface.ErrAddrNotFound
+}
+
+func fallbackBindIfaceToDialer(ifaceName string, dialer *net.Dialer, network string, destination net.IP) error {
+	if !destination.IsGlobalUnicast() {
+		return nil
+	}
+
+	local := uint64(0)
+	if dialer.LocalAddr != nil {
+		_, port, err := net.SplitHostPort(dialer.LocalAddr.String())
+		if err == nil {
+			local, _ = strconv.ParseUint(port, 10, 16)
+		}
+	}
+
+	addr, err := lookupLocalAddr(ifaceName, network, destination, int(local))
+	if err != nil {
+		return err
+	}
+
+	dialer.LocalAddr = addr
+
+	return nil
+}
+
+func fallbackBindIfaceToListenConfig(ifaceName string, _ *net.ListenConfig, network, address string) (string, error) {
+	_, port, err := net.SplitHostPort(address)
+	if err != nil {
+		port = "0"
+	}
+
+	local, _ := strconv.ParseUint(port, 10, 16)
+
+	addr, err := lookupLocalAddr(ifaceName, network, nil, int(local))
+	if err != nil {
+		return "", err
+	}
+
+	return addr.String(), nil
+}

component/dialer/options.go

@@ -10,6 +10,7 @@ var (
 
 type option struct {
 	interfaceName string
+	fallbackBind  bool
 	addrReuse     bool
 	routingMark   int
 }
@@ -22,6 +23,12 @@ func WithInterface(name string) Option {
 	}
 }
 
+func WithFallbackBind(fallback bool) Option {
+	return func(opt *option) {
+		opt.fallbackBind = fallback
+	}
+}
+
 func WithAddrReuse(reuse bool) Option {
 	return func(opt *option) {
 		opt.addrReuse = reuse

component/ipset/ipset_linux.go

@@ -0,0 +1,22 @@
+//go:build linux
+
+package ipset
+
+import (
+	"net"
+
+	"github.com/vishvananda/netlink"
+)
+
+// Test whether the ip is in the set or not
+func Test(setName string, ip net.IP) (bool, error) {
+	return netlink.IpsetTest(setName, &netlink.IPSetEntry{
+		IP: ip,
+	})
+}
+
+// Verify dumps a specific ipset to check if we can use the set normally
+func Verify(setName string) error {
+	_, err := netlink.IpsetList(setName)
+	return err
+}

component/ipset/ipset_others.go

@@ -0,0 +1,17 @@
+//go:build !linux
+
+package ipset
+
+import (
+	"net"
+)
+
+// Always return false in non-linux
+func Test(setName string, ip net.IP) (bool, error) {
+	return false, nil
+}
+
+// Always pass in non-linux
+func Verify(setName string) error {
+	return nil
+}

component/process/process.go

@@ -2,7 +2,7 @@ package process
 
 import (
 	"errors"
-	"net"
+	"net/netip"
 )
 
 var (
@@ -16,6 +16,6 @@ const (
 	UDP = "udp"
 )
 
-func FindProcessName(network string, srcIP net.IP, srcPort int) (string, error) {
-	return findProcessName(network, srcIP, srcPort)
+func FindProcessPath(network string, from netip.AddrPort, to netip.AddrPort) (string, error) {
+	return findProcessPath(network, from, to)
 }

component/process/process_darwin.go

@@ -2,7 +2,7 @@ package process
 
 import (
 	"encoding/binary"
-	"net"
+	"net/netip"
 	"strconv"
 	"strings"
 	"syscall"
@@ -33,7 +33,7 @@ var structSize = func() int {
 	}
 }()
 
-func findProcessName(network string, ip net.IP, port int) (string, error) {
+func findProcessPath(network string, from netip.AddrPort, _ netip.AddrPort) (string, error) {
 	var spath string
 	switch network {
 	case TCP:
@@ -44,7 +44,7 @@ func findProcessName(network string, ip net.IP, port int) (string, error) {
 		return "", ErrInvalidNetwork
 	}
 
-	isIPv4 := ip.To4() != nil
+	isIPv4 := from.Addr().Is4()
 
 	value, err := syscall.Sysctl(spath)
 	if err != nil {
@@ -65,30 +65,36 @@ func findProcessName(network string, ip net.IP, port int) (string, error) {
 		inp, so := i, i+104
 
 		srcPort := binary.BigEndian.Uint16(buf[inp+18 : inp+20])
-		if uint16(port) != srcPort {
+		if from.Port() != srcPort {
 			continue
 		}
 
+		// FIXME: add dstPort check
+
 		// xinpcb_n.inp_vflag
 		flag := buf[inp+44]
 
 		var (
-			srcIP     net.IP
+			srcIP     netip.Addr
+			srcIPOk   bool
 			srcIsIPv4 bool
 		)
 		switch {
 		case flag&0x1 > 0 && isIPv4:
 			// ipv4
-			srcIP = net.IP(buf[inp+76 : inp+80])
+			srcIP, srcIPOk = netip.AddrFromSlice(buf[inp+76 : inp+80])
 			srcIsIPv4 = true
 		case flag&0x2 > 0 && !isIPv4:
 			// ipv6
-			srcIP = net.IP(buf[inp+64 : inp+80])
+			srcIP, srcIPOk = netip.AddrFromSlice(buf[inp+64 : inp+80])
 		default:
 			continue
 		}
+		if !srcIPOk {
+			continue
+		}
 
-		if ip.Equal(srcIP) {
+		if from.Addr() == srcIP { // FIXME: add dstIP check
 			// xsocket_n.so_last_pid
 			pid := readNativeUint32(buf[so+68 : so+72])
 			return getExecPathFromPID(pid)

component/process/process_freebsd.go

@@ -0,0 +1,217 @@
+package process
+
+import (
+	"encoding/binary"
+	"fmt"
+	"net/netip"
+	"strconv"
+	"strings"
+	"unsafe"
+
+	"golang.org/x/sys/unix"
+)
+
+type Xinpgen12 [64]byte // size 64
+
+type InEndpoints12 struct {
+	FPort  [2]byte
+	LPort  [2]byte
+	FAddr  [16]byte
+	LAddr  [16]byte
+	ZoneID uint32
+} // size 40
+
+type XTcpcb12 struct {
+	Len         uint32        // offset 0
+	_           [20]byte      // offset 4
+	SocketAddr  uint64        // offset 24
+	_           [84]byte      // offset 32
+	Family      uint32        // offset 116
+	_           [140]byte     // offset 120
+	InEndpoints InEndpoints12 // offset 260
+	_           [444]byte     // offset 300
+} // size 744
+
+type XInpcb12 struct {
+	Len         uint32        // offset 0
+	_           [12]byte      // offset 4
+	SocketAddr  uint64        // offset 16
+	_           [84]byte      // offset 24
+	Family      uint32        // offset 108
+	_           [140]byte     // offset 112
+	InEndpoints InEndpoints12 // offset 252
+	_           [108]byte     // offset 292
+} // size 400
+
+type XFile12 struct {
+	Size     uint64   // offset 0
+	Pid      uint32   // offset 8
+	_        [44]byte // offset 12
+	DataAddr uint64   // offset 56
+	_        [64]byte // offset 64
+} // size 128
+
+var majorVersion = func() int {
+	releaseVersion, err := unix.Sysctl("kern.osrelease")
+	if err != nil {
+		return 0
+	}
+
+	majorVersionText, _, _ := strings.Cut(releaseVersion, ".")
+
+	majorVersion, err := strconv.Atoi(majorVersionText)
+	if err != nil {
+		return 0
+	}
+
+	return majorVersion
+}()
+
+func findProcessPath(network string, from netip.AddrPort, to netip.AddrPort) (string, error) {
+	switch majorVersion {
+	case 12, 13:
+		return findProcessPath12(network, from, to)
+	}
+
+	return "", ErrPlatformNotSupport
+}
+
+func findProcessPath12(network string, from netip.AddrPort, to netip.AddrPort) (string, error) {
+	switch network {
+	case TCP:
+		data, err := unix.SysctlRaw("net.inet.tcp.pcblist")
+		if err != nil {
+			return "", err
+		}
+
+		if len(data) < int(unsafe.Sizeof(Xinpgen12{})) {
+			return "", fmt.Errorf("invalid sysctl data len: %d", len(data))
+		}
+
+		data = data[unsafe.Sizeof(Xinpgen12{}):]
+
+		for len(data) > int(unsafe.Sizeof(XTcpcb12{}.Len)) {
+			tcb := (*XTcpcb12)(unsafe.Pointer(&data[0]))
+			if tcb.Len < uint32(unsafe.Sizeof(XTcpcb12{})) || uint32(len(data)) < tcb.Len {
+				break
+			}
+
+			data = data[tcb.Len:]
+
+			var (
+				connFromAddr netip.Addr
+				connToAddr   netip.Addr
+			)
+			if tcb.Family == unix.AF_INET {
+				connFromAddr = netip.AddrFrom4([4]byte(tcb.InEndpoints.LAddr[12:16]))
+				connToAddr = netip.AddrFrom4([4]byte(tcb.InEndpoints.FAddr[12:16]))
+			} else if tcb.Family == unix.AF_INET6 {
+				connFromAddr = netip.AddrFrom16(tcb.InEndpoints.LAddr)
+				connToAddr = netip.AddrFrom16(tcb.InEndpoints.FAddr)
+			} else {
+				continue
+			}
+
+			connFrom := netip.AddrPortFrom(connFromAddr, binary.BigEndian.Uint16(tcb.InEndpoints.LPort[:]))
+			connTo := netip.AddrPortFrom(connToAddr, binary.BigEndian.Uint16(tcb.InEndpoints.FPort[:]))
+
+			if connFrom == from && connTo == to {
+				pid, err := findPidBySocketAddr12(tcb.SocketAddr)
+				if err != nil {
+					return "", err
+				}
+
+				return findExecutableByPid(pid)
+			}
+		}
+	case UDP:
+		data, err := unix.SysctlRaw("net.inet.udp.pcblist")
+		if err != nil {
+			return "", err
+		}
+
+		if len(data) < int(unsafe.Sizeof(Xinpgen12{})) {
+			return "", fmt.Errorf("invalid sysctl data len: %d", len(data))
+		}
+
+		data = data[unsafe.Sizeof(Xinpgen12{}):]
+
+		for len(data) > int(unsafe.Sizeof(XInpcb12{}.Len)) {
+			icb := (*XInpcb12)(unsafe.Pointer(&data[0]))
+			if icb.Len < uint32(unsafe.Sizeof(XInpcb12{})) || uint32(len(data)) < icb.Len {
+				break
+			}
+			data = data[icb.Len:]
+
+			var connFromAddr netip.Addr
+			if icb.Family == unix.AF_INET {
+				connFromAddr = netip.AddrFrom4([4]byte(icb.InEndpoints.LAddr[12:16]))
+			} else if icb.Family == unix.AF_INET6 {
+				connFromAddr = netip.AddrFrom16(icb.InEndpoints.LAddr)
+			} else {
+				continue
+			}
+
+			connFromPort := binary.BigEndian.Uint16(icb.InEndpoints.LPort[:])
+
+			if (connFromAddr == from.Addr() || connFromAddr.IsUnspecified()) && connFromPort == from.Port() {
+				pid, err := findPidBySocketAddr12(icb.SocketAddr)
+				if err != nil {
+					return "", err
+				}
+
+				return findExecutableByPid(pid)
+			}
+		}
+	}
+
+	return "", ErrNotFound
+}
+
+func findPidBySocketAddr12(socketAddr uint64) (uint32, error) {
+	buf, err := unix.SysctlRaw("kern.file")
+	if err != nil {
+		return 0, err
+	}
+
+	filesLen := len(buf) / int(unsafe.Sizeof(XFile12{}))
+	files := unsafe.Slice((*XFile12)(unsafe.Pointer(&buf[0])), filesLen)
+
+	for _, file := range files {
+		if file.Size != uint64(unsafe.Sizeof(XFile12{})) {
+			return 0, fmt.Errorf("invalid xfile size: %d", file.Size)
+		}
+
+		if file.DataAddr == socketAddr {
+			return file.Pid, nil
+		}
+	}
+
+	return 0, ErrNotFound
+}
+
+func findExecutableByPid(pid uint32) (string, error) {
+	buf := make([]byte, unix.PathMax)
+	size := uint64(len(buf))
+	mib := [4]uint32{
+		unix.CTL_KERN,
+		14, // KERN_PROC
+		12, // KERN_PROC_PATHNAME
+		pid,
+	}
+
+	_, _, errno := unix.Syscall6(
+		unix.SYS___SYSCTL,
+		uintptr(unsafe.Pointer(&mib[0])),
+		uintptr(len(mib)),
+		uintptr(unsafe.Pointer(&buf[0])),
+		uintptr(unsafe.Pointer(&size)),
+		0,
+		0,
+	)
+	if errno != 0 || size == 0 {
+		return "", fmt.Errorf("sysctl: get proc name: %w", errno)
+	}
+
+	return string(buf[:size-1]), nil
+}

component/process/process_freebsd_amd64.go

@@ -1,233 +0,0 @@
-package process
-
-import (
-	"encoding/binary"
-	"fmt"
-	"net"
-	"strconv"
-	"strings"
-	"sync"
-	"syscall"
-	"unsafe"
-
-	"github.com/Dreamacro/clash/log"
-)
-
-// store process name for when dealing with multiple PROCESS-NAME rules
-var (
-	defaultSearcher *searcher
-
-	once sync.Once
-)
-
-func findProcessName(network string, ip net.IP, srcPort int) (string, error) {
-	once.Do(func() {
-		if err := initSearcher(); err != nil {
-			log.Errorln("Initialize PROCESS-NAME failed: %s", err.Error())
-			log.Warnln("All PROCESS-NAME rules will be skipped")
-			return
-		}
-	})
-
-	if defaultSearcher == nil {
-		return "", ErrPlatformNotSupport
-	}
-
-	var spath string
-	isTCP := network == TCP
-	switch network {
-	case TCP:
-		spath = "net.inet.tcp.pcblist"
-	case UDP:
-		spath = "net.inet.udp.pcblist"
-	default:
-		return "", ErrInvalidNetwork
-	}
-
-	value, err := syscall.Sysctl(spath)
-	if err != nil {
-		return "", err
-	}
-
-	buf := []byte(value)
-	pid, err := defaultSearcher.Search(buf, ip, uint16(srcPort), isTCP)
-	if err != nil {
-		return "", err
-	}
-
-	return getExecPathFromPID(pid)
-}
-
-func getExecPathFromPID(pid uint32) (string, error) {
-	buf := make([]byte, 2048)
-	size := uint64(len(buf))
-	// CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, pid
-	mib := [4]uint32{1, 14, 12, pid}
-
-	_, _, errno := syscall.Syscall6(
-		syscall.SYS___SYSCTL,
-		uintptr(unsafe.Pointer(&mib[0])),
-		uintptr(len(mib)),
-		uintptr(unsafe.Pointer(&buf[0])),
-		uintptr(unsafe.Pointer(&size)),
-		0,
-		0)
-	if errno != 0 || size == 0 {
-		return "", errno
-	}
-
-	return string(buf[:size-1]), nil
-}
-
-func readNativeUint32(b []byte) uint32 {
-	return *(*uint32)(unsafe.Pointer(&b[0]))
-}
-
-type searcher struct {
-	// sizeof(struct xinpgen)
-	headSize int
-	// sizeof(struct xtcpcb)
-	tcpItemSize int
-	// sizeof(struct xinpcb)
-	udpItemSize  int
-	udpInpOffset int
-	port         int
-	ip           int
-	vflag        int
-	socket       int
-
-	// sizeof(struct xfile)
-	fileItemSize int
-	data         int
-	pid          int
-}
-
-func (s *searcher) Search(buf []byte, ip net.IP, port uint16, isTCP bool) (uint32, error) {
-	var itemSize int
-	var inpOffset int
-
-	if isTCP {
-		// struct xtcpcb
-		itemSize = s.tcpItemSize
-		inpOffset = 8
-	} else {
-		// struct xinpcb
-		itemSize = s.udpItemSize
-		inpOffset = s.udpInpOffset
-	}
-
-	isIPv4 := ip.To4() != nil
-	// skip the first xinpgen block
-	for i := s.headSize; i+itemSize <= len(buf); i += itemSize {
-		inp := i + inpOffset
-
-		srcPort := binary.BigEndian.Uint16(buf[inp+s.port : inp+s.port+2])
-
-		if port != srcPort {
-			continue
-		}
-
-		// xinpcb.inp_vflag
-		flag := buf[inp+s.vflag]
-
-		var srcIP net.IP
-		switch {
-		case flag&0x1 > 0 && isIPv4:
-			// ipv4
-			srcIP = net.IP(buf[inp+s.ip : inp+s.ip+4])
-		case flag&0x2 > 0 && !isIPv4:
-			// ipv6
-			srcIP = net.IP(buf[inp+s.ip-12 : inp+s.ip+4])
-		default:
-			continue
-		}
-
-		if !ip.Equal(srcIP) {
-			continue
-		}
-
-		// xsocket.xso_so, interpreted as big endian anyway since it's only used for comparison
-		socket := binary.BigEndian.Uint64(buf[inp+s.socket : inp+s.socket+8])
-		return s.searchSocketPid(socket)
-	}
-	return 0, ErrNotFound
-}
-
-func (s *searcher) searchSocketPid(socket uint64) (uint32, error) {
-	value, err := syscall.Sysctl("kern.file")
-	if err != nil {
-		return 0, err
-	}
-
-	buf := []byte(value)
-
-	// struct xfile
-	itemSize := s.fileItemSize
-	for i := 0; i+itemSize <= len(buf); i += itemSize {
-		// xfile.xf_data
-		data := binary.BigEndian.Uint64(buf[i+s.data : i+s.data+8])
-		if data == socket {
-			// xfile.xf_pid
-			pid := readNativeUint32(buf[i+s.pid : i+s.pid+4])
-			return pid, nil
-		}
-	}
-	return 0, ErrNotFound
-}
-
-func newSearcher(major int) *searcher {
-	var s *searcher
-	switch major {
-	case 11:
-		s = &searcher{
-			headSize:     32,
-			tcpItemSize:  1304,
-			udpItemSize:  632,
-			port:         198,
-			ip:           228,
-			vflag:        116,
-			socket:       88,
-			fileItemSize: 80,
-			data:         56,
-			pid:          8,
-			udpInpOffset: 8,
-		}
-	case 12:
-		fallthrough
-	case 13:
-		s = &searcher{
-			headSize:     64,
-			tcpItemSize:  744,
-			udpItemSize:  400,
-			port:         254,
-			ip:           284,
-			vflag:        392,
-			socket:       16,
-			fileItemSize: 128,
-			data:         56,
-			pid:          8,
-		}
-	}
-	return s
-}
-
-func initSearcher() error {
-	osRelease, err := syscall.Sysctl("kern.osrelease")
-	if err != nil {
-		return err
-	}
-
-	dot := strings.Index(osRelease, ".")
-	if dot != -1 {
-		osRelease = osRelease[:dot]
-	}
-	major, err := strconv.Atoi(osRelease)
-	if err != nil {
-		return err
-	}
-	defaultSearcher = newSearcher(major)
-	if defaultSearcher == nil {
-		return fmt.Errorf("unsupported freebsd version %d", major)
-	}
-	return nil
-}

component/process/process_freebsd_test.go

@@ -0,0 +1,35 @@
+//go:build freebsd
+
+package process
+
+import (
+	"testing"
+	"unsafe"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestEnforceStructValid12(t *testing.T) {
+	if majorVersion != 12 && majorVersion != 13 {
+		t.Skipf("Unsupported freebsd version: %d", majorVersion)
+
+		return
+	}
+
+	assert.Equal(t, 0, int(unsafe.Offsetof(XTcpcb12{}.Len)))
+	assert.Equal(t, 24, int(unsafe.Offsetof(XTcpcb12{}.SocketAddr)))
+	assert.Equal(t, 116, int(unsafe.Offsetof(XTcpcb12{}.Family)))
+	assert.Equal(t, 260, int(unsafe.Offsetof(XTcpcb12{}.InEndpoints)))
+	assert.Equal(t, 0, int(unsafe.Offsetof(XInpcb12{}.Len)))
+	assert.Equal(t, 16, int(unsafe.Offsetof(XInpcb12{}.SocketAddr)))
+	assert.Equal(t, 108, int(unsafe.Offsetof(XInpcb12{}.Family)))
+	assert.Equal(t, 252, int(unsafe.Offsetof(XInpcb12{}.InEndpoints)))
+	assert.Equal(t, 0, int(unsafe.Offsetof(XFile12{}.Size)))
+	assert.Equal(t, 8, int(unsafe.Offsetof(XFile12{}.Pid)))
+	assert.Equal(t, 56, int(unsafe.Offsetof(XFile12{}.DataAddr)))
+	assert.Equal(t, 64, int(unsafe.Sizeof(Xinpgen12{})))
+	assert.Equal(t, 744, int(unsafe.Sizeof(XTcpcb12{})))
+	assert.Equal(t, 400, int(unsafe.Sizeof(XInpcb12{})))
+	assert.Equal(t, 40, int(unsafe.Sizeof(InEndpoints12{})))
+	assert.Equal(t, 128, int(unsafe.Sizeof(XFile12{})))
+}

component/process/process_linux.go

@@ -5,23 +5,16 @@ import (
 	"encoding/binary"
 	"fmt"
 	"net"
+	"net/netip"
 	"os"
-	"path/filepath"
-	"strings"
-	"syscall"
-	"unicode"
 	"unsafe"
 
+	"github.com/Dreamacro/clash/common/pool"
+
 	"github.com/mdlayher/netlink"
 	"golang.org/x/sys/unix"
 )
 
-const (
-	SOCK_DIAG_BY_FAMILY  = 20
-	inetDiagRequestSize  = int(unsafe.Sizeof(inetDiagRequest{}))
-	inetDiagResponseSize = int(unsafe.Sizeof(inetDiagResponse{}))
-)
-
 type inetDiagRequest struct {
 	Family   byte
 	Protocol byte
@@ -57,42 +50,74 @@ type inetDiagResponse struct {
 	INode   uint32
 }
 
-func findProcessName(network string, ip net.IP, srcPort int) (string, error) {
-	inode, uid, err := resolveSocketByNetlink(network, ip, srcPort)
+func findProcessPath(network string, from netip.AddrPort, to netip.AddrPort) (string, error) {
+	inode, uid, err := resolveSocketByNetlink(network, from, to)
 	if err != nil {
 		return "", err
 	}
 
-	return resolveProcessNameByProcSearch(inode, uid)
+	return resolveProcessPathByProcSearch(inode, uid)
 }
 
-func resolveSocketByNetlink(network string, ip net.IP, srcPort int) (uint32, uint32, error) {
-	request := &inetDiagRequest{
-		States: 0xffffffff,
-		Cookie: [2]uint32{0xffffffff, 0xffffffff},
+func resolveSocketByNetlink(network string, from netip.AddrPort, to netip.AddrPort) (inode uint32, uid uint32, err error) {
+	var families []byte
+	if from.Addr().Unmap().Is4() {
+		families = []byte{unix.AF_INET, unix.AF_INET6}
+	} else {
+		families = []byte{unix.AF_INET6, unix.AF_INET}
 	}
 
-	if ip.To4() != nil {
-		request.Family = unix.AF_INET
-	} else {
-		request.Family = unix.AF_INET6
-	}
-
-	if strings.HasPrefix(network, "tcp") {
-		request.Protocol = unix.IPPROTO_TCP
-	} else if strings.HasPrefix(network, "udp") {
-		request.Protocol = unix.IPPROTO_UDP
-	} else {
+	var protocol byte
+	switch network {
+	case TCP:
+		protocol = unix.IPPROTO_TCP
+	case UDP:
+		protocol = unix.IPPROTO_UDP
+	default:
 		return 0, 0, ErrInvalidNetwork
 	}
 
-	if v4 := ip.To4(); v4 != nil {
-		copy(request.Src[:], v4)
-	} else {
-		copy(request.Src[:], ip)
+	if protocol == unix.IPPROTO_UDP {
+		// Swap from & to for udp
+		// See also https://www.mail-archive.com/netdev@vger.kernel.org/msg248638.html
+		from, to = to, from
 	}
 
-	binary.BigEndian.PutUint16(request.SrcPort[:], uint16(srcPort))
+	for _, family := range families {
+		inode, uid, err = resolveSocketByNetlinkExact(family, protocol, from, to, netlink.Request)
+		if err == nil {
+			return inode, uid, err
+		}
+	}
+
+	return 0, 0, ErrNotFound
+}
+
+func resolveSocketByNetlinkExact(family byte, protocol byte, from netip.AddrPort, to netip.AddrPort, flags netlink.HeaderFlags) (inode uint32, uid uint32, err error) {
+	request := &inetDiagRequest{
+		Family:   family,
+		Protocol: protocol,
+		States:   0xffffffff,
+		Cookie:   [2]uint32{0xffffffff, 0xffffffff},
+	}
+
+	var (
+		fromAddr []byte
+		toAddr   []byte
+	)
+	if family == unix.AF_INET {
+		fromAddr = net.IP(from.Addr().AsSlice()).To4()
+		toAddr = net.IP(to.Addr().AsSlice()).To4()
+	} else {
+		fromAddr = net.IP(from.Addr().AsSlice()).To16()
+		toAddr = net.IP(to.Addr().AsSlice()).To16()
+	}
+
+	copy(request.Src[:], fromAddr)
+	copy(request.Dst[:], toAddr)
+
+	binary.BigEndian.PutUint16(request.SrcPort[:], from.Port())
+	binary.BigEndian.PutUint16(request.DstPort[:], to.Port())
 
 	conn, err := netlink.Dial(unix.NETLINK_INET_DIAG, nil)
 	if err != nil {
@@ -102,10 +127,10 @@ func resolveSocketByNetlink(network string, ip net.IP, srcPort int) (uint32, uin
 
 	message := netlink.Message{
 		Header: netlink.Header{
-			Type:  SOCK_DIAG_BY_FAMILY,
-			Flags: netlink.Request | netlink.Dump,
+			Type:  20, // SOCK_DIAG_BY_FAMILY
+			Flags: flags,
 		},
-		Data: (*(*[inetDiagRequestSize]byte)(unsafe.Pointer(request)))[:],
+		Data: (*(*[unsafe.Sizeof(*request)]byte)(unsafe.Pointer(request)))[:],
 	}
 
 	messages, err := conn.Execute(message)
@@ -114,7 +139,7 @@ func resolveSocketByNetlink(network string, ip net.IP, srcPort int) (uint32, uin
 	}
 
 	for _, msg := range messages {
-		if len(msg.Data) < inetDiagResponseSize {
+		if len(msg.Data) < int(unsafe.Sizeof(inetDiagResponse{})) {
 			continue
 		}
 
@@ -126,53 +151,82 @@ func resolveSocketByNetlink(network string, ip net.IP, srcPort int) (uint32, uin
 	return 0, 0, ErrNotFound
 }
 
-func resolveProcessNameByProcSearch(inode, uid uint32) (string, error) {
-	files, err := os.ReadDir("/proc")
+func resolveProcessPathByProcSearch(inode, uid uint32) (string, error) {
+	procDir, err := os.Open("/proc")
+	if err != nil {
+		return "", err
+	}
+	defer procDir.Close()
+
+	pids, err := procDir.Readdirnames(-1)
 	if err != nil {
 		return "", err
 	}
 
-	buffer := make([]byte, unix.PathMax)
-	socket := fmt.Appendf(nil, "socket:[%d]", inode)
+	expectedSocketName := fmt.Appendf(nil, "socket:[%d]", inode)
 
-	for _, f := range files {
-		if !f.IsDir() || !isPid(f.Name()) {
+	pathBuffer := pool.Get(64)
+	defer pool.Put(pathBuffer)
+
+	readlinkBuffer := pool.Get(32)
+	defer pool.Put(readlinkBuffer)
+
+	copy(pathBuffer, "/proc/")
+
+	for _, pid := range pids {
+		if !isPid(pid) {
 			continue
 		}
 
-		info, err := f.Info()
+		pathBuffer = append(pathBuffer[:len("/proc/")], pid...)
+
+		stat := &unix.Stat_t{}
+		err = unix.Stat(string(pathBuffer), stat)
 		if err != nil {
-			return "", err
-		}
-		if info.Sys().(*syscall.Stat_t).Uid != uid {
+			continue
+		} else if stat.Uid != uid {
 			continue
 		}
 
-		processPath := filepath.Join("/proc", f.Name())
-		fdPath := filepath.Join(processPath, "fd")
+		pathBuffer = append(pathBuffer, "/fd/"...)
+		fdsPrefixLength := len(pathBuffer)
 
-		fds, err := os.ReadDir(fdPath)
+		fdDir, err := os.Open(string(pathBuffer))
+		if err != nil {
+			continue
+		}
+
+		fds, err := fdDir.Readdirnames(-1)
+		fdDir.Close()
 		if err != nil {
 			continue
 		}
 
 		for _, fd := range fds {
-			n, err := unix.Readlink(filepath.Join(fdPath, fd.Name()), buffer)
+			pathBuffer = pathBuffer[:fdsPrefixLength]
+
+			pathBuffer = append(pathBuffer, fd...)
+
+			n, err := unix.Readlink(string(pathBuffer), readlinkBuffer)
 			if err != nil {
 				continue
 			}
 
-			if bytes.Equal(buffer[:n], socket) {
-				return os.Readlink(filepath.Join(processPath, "exe"))
+			if bytes.Equal(readlinkBuffer[:n], expectedSocketName) {
+				return os.Readlink("/proc/" + pid + "/exe")
 			}
 		}
 	}
 
-	return "", fmt.Errorf("process of uid(%d),inode(%d) not found", uid, inode)
+	return "", fmt.Errorf("inode %d of uid %d not found", inode, uid)
 }
 
-func isPid(s string) bool {
-	return strings.IndexFunc(s, func(r rune) bool {
-		return !unicode.IsDigit(r)
-	}) == -1
+func isPid(name string) bool {
+	for _, c := range name {
+		if c < '0' || c > '9' {
+			return false
+		}
+	}
+
+	return true
 }

component/process/process_other.go

@@ -1,9 +1,11 @@
-//go:build !darwin && !linux && !windows && (!freebsd || !amd64)
+//go:build !darwin && !linux && !windows && !freebsd
 
 package process
 
-import "net"
+import (
+	"net/netip"
+)
 
-func findProcessName(network string, ip net.IP, srcPort int) (string, error) {
+func findProcessPath(_ string, _, _ netip.AddrPort) (string, error) {
 	return "", ErrPlatformNotSupport
 }

component/process/process_test.go

@@ -0,0 +1,112 @@
+package process
+
+import (
+	"net"
+	"net/netip"
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func testConn(t *testing.T, network, address string) {
+	l, err := net.Listen(network, address)
+	if err != nil {
+		assert.FailNow(t, "Listen failed", err)
+	}
+	defer l.Close()
+
+	conn, err := net.Dial("tcp", l.Addr().String())
+	if err != nil {
+		assert.FailNow(t, "Dial failed", err)
+	}
+	defer conn.Close()
+
+	rConn, err := l.Accept()
+	if err != nil {
+		assert.FailNow(t, "Accept conn failed", err)
+	}
+	defer rConn.Close()
+
+	path, err := FindProcessPath(TCP, conn.LocalAddr().(*net.TCPAddr).AddrPort(), conn.RemoteAddr().(*net.TCPAddr).AddrPort())
+	if err != nil {
+		assert.FailNow(t, "Find process path failed", err)
+	}
+
+	exePath, err := os.Executable()
+	if err != nil {
+		assert.FailNow(t, "Get executable failed", err)
+	}
+
+	assert.Equal(t, exePath, path)
+}
+
+func TestFindProcessPathTCP(t *testing.T) {
+	t.Run("v4", func(t *testing.T) {
+		testConn(t, "tcp4", "127.0.0.1:0")
+	})
+	t.Run("v6", func(t *testing.T) {
+		testConn(t, "tcp6", "[::1]:0")
+	})
+}
+
+func testPacketConn(t *testing.T, network, lAddress, rAddress string) {
+	lConn, err := net.ListenPacket(network, lAddress)
+	if err != nil {
+		assert.FailNow(t, "ListenPacket failed", err)
+	}
+	defer lConn.Close()
+
+	rConn, err := net.ListenPacket(network, rAddress)
+	if err != nil {
+		assert.FailNow(t, "ListenPacket failed", err)
+	}
+	defer rConn.Close()
+
+	_, err = lConn.WriteTo([]byte{0}, rConn.LocalAddr())
+	if err != nil {
+		assert.FailNow(t, "Send message failed", err)
+	}
+
+	_, lAddr, err := rConn.ReadFrom([]byte{0})
+	if err != nil {
+		assert.FailNow(t, "Receive message failed", err)
+	}
+
+	path, err := FindProcessPath(UDP, lAddr.(*net.UDPAddr).AddrPort(), rConn.LocalAddr().(*net.UDPAddr).AddrPort())
+	if err != nil {
+		assert.FailNow(t, "Find process path", err)
+	}
+
+	exePath, err := os.Executable()
+	if err != nil {
+		assert.FailNow(t, "Find executable", err)
+	}
+
+	assert.Equal(t, exePath, path)
+}
+
+func TestFindProcessPathUDP(t *testing.T) {
+	t.Run("v4", func(t *testing.T) {
+		testPacketConn(t, "udp4", "127.0.0.1:0", "127.0.0.1:0")
+	})
+	t.Run("v6", func(t *testing.T) {
+		testPacketConn(t, "udp6", "[::1]:0", "[::1]:0")
+	})
+	t.Run("v4AnyLocal", func(t *testing.T) {
+		testPacketConn(t, "udp4", "0.0.0.0:0", "127.0.0.1:0")
+	})
+	t.Run("v6AnyLocal", func(t *testing.T) {
+		testPacketConn(t, "udp6", "[::]:0", "[::1]:0")
+	})
+}
+
+func BenchmarkFindProcessName(b *testing.B) {
+	from := netip.MustParseAddrPort("127.0.0.1:11447")
+	to := netip.MustParseAddrPort("127.0.0.1:33669")
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		FindProcessPath(TCP, from, to)
+	}
+}

component/process/process_windows.go

@@ -1,196 +1,206 @@
 package process
 
 import (
+	"errors"
 	"fmt"
-	"net"
-	"sync"
-	"syscall"
+	"net/netip"
 	"unsafe"
 
-	"github.com/Dreamacro/clash/log"
-
 	"golang.org/x/sys/windows"
-)
 
-const (
-	tcpTableFunc      = "GetExtendedTcpTable"
-	tcpTablePidConn   = 4
-	udpTableFunc      = "GetExtendedUdpTable"
-	udpTablePid       = 1
-	queryProcNameFunc = "QueryFullProcessImageNameW"
+	"github.com/Dreamacro/clash/common/pool"
 )
 
 var (
-	getExTCPTable uintptr
-	getExUDPTable uintptr
-	queryProcName uintptr
+	modIphlpapi = windows.NewLazySystemDLL("iphlpapi.dll")
 
-	once sync.Once
+	procGetExtendedTcpTable = modIphlpapi.NewProc("GetExtendedTcpTable")
+	procGetExtendedUdpTable = modIphlpapi.NewProc("GetExtendedUdpTable")
 )
 
-func initWin32API() error {
-	h, err := windows.LoadLibrary("iphlpapi.dll")
-	if err != nil {
-		return fmt.Errorf("LoadLibrary iphlpapi.dll failed: %s", err.Error())
-	}
-
-	getExTCPTable, err = windows.GetProcAddress(h, tcpTableFunc)
-	if err != nil {
-		return fmt.Errorf("GetProcAddress of %s failed: %s", tcpTableFunc, err.Error())
-	}
-
-	getExUDPTable, err = windows.GetProcAddress(h, udpTableFunc)
-	if err != nil {
-		return fmt.Errorf("GetProcAddress of %s failed: %s", udpTableFunc, err.Error())
-	}
-
-	h, err = windows.LoadLibrary("kernel32.dll")
-	if err != nil {
-		return fmt.Errorf("LoadLibrary kernel32.dll failed: %s", err.Error())
-	}
-
-	queryProcName, err = windows.GetProcAddress(h, queryProcNameFunc)
-	if err != nil {
-		return fmt.Errorf("GetProcAddress of %s failed: %s", queryProcNameFunc, err.Error())
-	}
-
-	return nil
-}
-
-func findProcessName(network string, ip net.IP, srcPort int) (string, error) {
-	once.Do(func() {
-		err := initWin32API()
-		if err != nil {
-			log.Errorln("Initialize PROCESS-NAME failed: %s", err.Error())
-			log.Warnln("All PROCESS-NAMES rules will be skiped")
-			return
-		}
-	})
-	family := windows.AF_INET
-	if ip.To4() == nil {
+func findProcessPath(network string, from netip.AddrPort, to netip.AddrPort) (string, error) {
+	family := uint32(windows.AF_INET)
+	if from.Addr().Is6() {
 		family = windows.AF_INET6
 	}
 
-	var class int
-	var fn uintptr
+	var protocol uint32
 	switch network {
 	case TCP:
-		fn = getExTCPTable
-		class = tcpTablePidConn
+		protocol = windows.IPPROTO_TCP
 	case UDP:
-		fn = getExUDPTable
-		class = udpTablePid
+		protocol = windows.IPPROTO_UDP
 	default:
 		return "", ErrInvalidNetwork
 	}
 
-	buf, err := getTransportTable(fn, family, class)
+	pid, err := findPidByConnectionEndpoint(family, protocol, from, to)
 	if err != nil {
 		return "", err
 	}
 
-	s := newSearcher(family == windows.AF_INET, network == TCP)
-
-	pid, err := s.Search(buf, ip, uint16(srcPort))
-	if err != nil {
-		return "", err
-	}
 	return getExecPathFromPID(pid)
 }
 
-type searcher struct {
-	itemSize int
-	port     int
-	ip       int
-	ipSize   int
-	pid      int
-	tcpState int
-}
+func findPidByConnectionEndpoint(family uint32, protocol uint32, from netip.AddrPort, to netip.AddrPort) (uint32, error) {
+	buf := pool.Get(0)
+	defer pool.Put(buf)
 
-func (s *searcher) Search(b []byte, ip net.IP, port uint16) (uint32, error) {
-	n := int(readNativeUint32(b[:4]))
-	itemSize := s.itemSize
-	for i := 0; i < n; i++ {
-		row := b[4+itemSize*i : 4+itemSize*(i+1)]
+	bufSize := uint32(len(buf))
 
-		if s.tcpState >= 0 {
-			tcpState := readNativeUint32(row[s.tcpState : s.tcpState+4])
-			// MIB_TCP_STATE_ESTAB, only check established connections for TCP
-			if tcpState != 5 {
-				continue
+loop:
+	for {
+		var ret uintptr
+
+		switch protocol {
+		case windows.IPPROTO_TCP:
+			ret, _, _ = procGetExtendedTcpTable.Call(
+				uintptr(unsafe.Pointer(unsafe.SliceData(buf))),
+				uintptr(unsafe.Pointer(&bufSize)),
+				0,
+				uintptr(family),
+				4, // TCP_TABLE_OWNER_PID_CONNECTIONS
+				0,
+			)
+		case windows.IPPROTO_UDP:
+			ret, _, _ = procGetExtendedUdpTable.Call(
+				uintptr(unsafe.Pointer(unsafe.SliceData(buf))),
+				uintptr(unsafe.Pointer(&bufSize)),
+				0,
+				uintptr(family),
+				1, // UDP_TABLE_OWNER_PID
+				0,
+			)
+		default:
+			return 0, errors.New("unsupported network")
+		}
+
+		switch ret {
+		case 0:
+			buf = buf[:bufSize]
+
+			break loop
+		case uintptr(windows.ERROR_INSUFFICIENT_BUFFER):
+			pool.Put(buf)
+			buf = pool.Get(int(bufSize))
+
+			continue loop
+		default:
+			return 0, fmt.Errorf("syscall error: %d", ret)
+		}
+	}
+
+	if len(buf) < int(unsafe.Sizeof(uint32(0))) {
+		return 0, fmt.Errorf("invalid table size: %d", len(buf))
+	}
+
+	entriesSize := *(*uint32)(unsafe.Pointer(&buf[0]))
+
+	switch protocol {
+	case windows.IPPROTO_TCP:
+		if family == windows.AF_INET {
+			type MibTcpRowOwnerPid struct {
+				State      uint32
+				LocalAddr  [4]byte
+				LocalPort  uint32
+				RemoteAddr [4]byte
+				RemotePort uint32
+				OwningPid  uint32
+			}
+
+			if uint32(len(buf))-4 < entriesSize*uint32(unsafe.Sizeof(MibTcpRowOwnerPid{})) {
+				return 0, fmt.Errorf("invalid tables size: %d", len(buf))
+			}
+
+			entries := unsafe.Slice((*MibTcpRowOwnerPid)(unsafe.Pointer(&buf[4])), entriesSize)
+			for _, entry := range entries {
+				localAddr := netip.AddrFrom4(entry.LocalAddr)
+				localPort := windows.Ntohs(uint16(entry.LocalPort))
+				remoteAddr := netip.AddrFrom4(entry.RemoteAddr)
+				remotePort := windows.Ntohs(uint16(entry.RemotePort))
+
+				if localAddr == from.Addr() && remoteAddr == to.Addr() && localPort == from.Port() && remotePort == to.Port() {
+					return entry.OwningPid, nil
+				}
+			}
+		} else {
+			type MibTcp6RowOwnerPid struct {
+				LocalAddr     [16]byte
+				LocalScopeID  uint32
+				LocalPort     uint32
+				RemoteAddr    [16]byte
+				RemoteScopeID uint32
+				RemotePort    uint32
+				State         uint32
+				OwningPid     uint32
+			}
+
+			if uint32(len(buf))-4 < entriesSize*uint32(unsafe.Sizeof(MibTcp6RowOwnerPid{})) {
+				return 0, fmt.Errorf("invalid tables size: %d", len(buf))
+			}
+
+			entries := unsafe.Slice((*MibTcp6RowOwnerPid)(unsafe.Pointer(&buf[4])), entriesSize)
+			for _, entry := range entries {
+				localAddr := netip.AddrFrom16(entry.LocalAddr)
+				localPort := windows.Ntohs(uint16(entry.LocalPort))
+				remoteAddr := netip.AddrFrom16(entry.RemoteAddr)
+				remotePort := windows.Ntohs(uint16(entry.RemotePort))
+
+				if localAddr == from.Addr() && remoteAddr == to.Addr() && localPort == from.Port() && remotePort == to.Port() {
+					return entry.OwningPid, nil
+				}
 			}
 		}
+	case windows.IPPROTO_UDP:
+		if family == windows.AF_INET {
+			type MibUdpRowOwnerPid struct {
+				LocalAddr [4]byte
+				LocalPort uint32
+				OwningPid uint32
+			}
 
-		// according to MSDN, only the lower 16 bits of dwLocalPort are used and the port number is in network endian.
-		// this field can be illustrated as follows depends on different machine endianess:
-		//     little endian: [ MSB LSB  0   0  ]   interpret as native uint32 is ((LSB<<8)|MSB)
-		//       big  endian: [  0   0  MSB LSB ]   interpret as native uint32 is ((MSB<<8)|LSB)
-		// so we need an syscall.Ntohs on the lower 16 bits after read the port as native uint32
-		srcPort := syscall.Ntohs(uint16(readNativeUint32(row[s.port : s.port+4])))
-		if srcPort != port {
-			continue
+			if uint32(len(buf))-4 < entriesSize*uint32(unsafe.Sizeof(MibUdpRowOwnerPid{})) {
+				return 0, fmt.Errorf("invalid tables size: %d", len(buf))
+			}
+
+			entries := unsafe.Slice((*MibUdpRowOwnerPid)(unsafe.Pointer(&buf[4])), entriesSize)
+			for _, entry := range entries {
+				localAddr := netip.AddrFrom4(entry.LocalAddr)
+				localPort := windows.Ntohs(uint16(entry.LocalPort))
+
+				if (localAddr == from.Addr() || localAddr.IsUnspecified()) && localPort == from.Port() {
+					return entry.OwningPid, nil
+				}
+			}
+		} else {
+			type MibUdp6RowOwnerPid struct {
+				LocalAddr    [16]byte
+				LocalScopeId uint32
+				LocalPort    uint32
+				OwningPid    uint32
+			}
+
+			if uint32(len(buf))-4 < entriesSize*uint32(unsafe.Sizeof(MibUdp6RowOwnerPid{})) {
+				return 0, fmt.Errorf("invalid tables size: %d", len(buf))
+			}
+
+			entries := unsafe.Slice((*MibUdp6RowOwnerPid)(unsafe.Pointer(&buf[4])), entriesSize)
+			for _, entry := range entries {
+				localAddr := netip.AddrFrom16(entry.LocalAddr)
+				localPort := windows.Ntohs(uint16(entry.LocalPort))
+
+				if (localAddr == from.Addr() || localAddr.IsUnspecified()) && localPort == from.Port() {
+					return entry.OwningPid, nil
+				}
+			}
 		}
-
-		srcIP := net.IP(row[s.ip : s.ip+s.ipSize])
-		// windows binds an unbound udp socket to 0.0.0.0/[::] while first sendto
-		if !ip.Equal(srcIP) && (!srcIP.IsUnspecified() || s.tcpState != -1) {
-			continue
-		}
-
-		pid := readNativeUint32(row[s.pid : s.pid+4])
-		return pid, nil
+	default:
+		return 0, ErrInvalidNetwork
 	}
+
 	return 0, ErrNotFound
 }
 
-func newSearcher(isV4, isTCP bool) *searcher {
-	var itemSize, port, ip, ipSize, pid int
-	tcpState := -1
-	switch {
-	case isV4 && isTCP:
-		// struct MIB_TCPROW_OWNER_PID
-		itemSize, port, ip, ipSize, pid, tcpState = 24, 8, 4, 4, 20, 0
-	case isV4 && !isTCP:
-		// struct MIB_UDPROW_OWNER_PID
-		itemSize, port, ip, ipSize, pid = 12, 4, 0, 4, 8
-	case !isV4 && isTCP:
-		// struct MIB_TCP6ROW_OWNER_PID
-		itemSize, port, ip, ipSize, pid, tcpState = 56, 20, 0, 16, 52, 48
-	case !isV4 && !isTCP:
-		// struct MIB_UDP6ROW_OWNER_PID
-		itemSize, port, ip, ipSize, pid = 28, 20, 0, 16, 24
-	}
-
-	return &searcher{
-		itemSize: itemSize,
-		port:     port,
-		ip:       ip,
-		ipSize:   ipSize,
-		pid:      pid,
-		tcpState: tcpState,
-	}
-}
-
-func getTransportTable(fn uintptr, family int, class int) ([]byte, error) {
-	for size, buf := uint32(8), make([]byte, 8); ; {
-		ptr := unsafe.Pointer(&buf[0])
-		err, _, _ := syscall.SyscallN(fn, uintptr(ptr), uintptr(unsafe.Pointer(&size)), 0, uintptr(family), uintptr(class), 0)
-
-		switch err {
-		case 0:
-			return buf, nil
-		case uintptr(syscall.ERROR_INSUFFICIENT_BUFFER):
-			buf = make([]byte, size)
-		default:
-			return nil, fmt.Errorf("syscall error: %d", err)
-		}
-	}
-}
-
-func readNativeUint32(b []byte) uint32 {
-	return *(*uint32)(unsafe.Pointer(&b[0]))
-}
-
 func getExecPathFromPID(pid uint32) (string, error) {
 	// kernel process starts with a colon in order to distinguish with normal processes
 	switch pid {
@@ -207,17 +217,13 @@ func getExecPathFromPID(pid uint32) (string, error) {
 	}
 	defer windows.CloseHandle(h)
 
-	buf := make([]uint16, syscall.MAX_LONG_PATH)
+	buf := make([]uint16, windows.MAX_LONG_PATH)
 	size := uint32(len(buf))
-	r1, _, err := syscall.SyscallN(
-		queryProcName,
-		uintptr(h),
-		uintptr(1),
-		uintptr(unsafe.Pointer(&buf[0])),
-		uintptr(unsafe.Pointer(&size)),
-	)
-	if r1 == 0 {
+
+	err = windows.QueryFullProcessImageName(h, 0, &buf[0], &size)
+	if err != nil {
 		return "", err
 	}
-	return syscall.UTF16ToString(buf[:size]), nil
+
+	return windows.UTF16ToString(buf[:size]), nil
 }

component/resolver/resolver.go

@@ -10,6 +10,8 @@ import (
 	"time"
 
 	"github.com/Dreamacro/clash/component/trie"
+
+	"github.com/miekg/dns"
 )
 
 var (
@@ -40,6 +42,7 @@ type Resolver interface {
 	ResolveIP(host string) (ip net.IP, err error)
 	ResolveIPv4(host string) (ip net.IP, err error)
 	ResolveIPv6(host string) (ip net.IP, err error)
+	ExchangeContext(ctx context.Context, m *dns.Msg) (msg *dns.Msg, err error)
 }
 
 // LookupIPv4 with a host, return ipv4 list

config/config.go

@@ -69,6 +69,7 @@ type DNS struct {
 	FakeIPRange       *fakeip.Pool
 	Hosts             *trie.DomainTrie
 	NameServerPolicy  map[string]dns.NameServer
+	SearchDomains     []string
 }
 
 // FallbackFilter config
@@ -86,7 +87,9 @@ type Profile struct {
 }
 
 // Experimental config
-type Experimental struct{}
+type Experimental struct {
+	UDPFallbackMatch bool `yaml:"udp-fallback-match"`
+}
 
 // Config is clash config manager
 type Config struct {
@@ -115,6 +118,7 @@ type RawDNS struct {
 	FakeIPFilter      []string          `yaml:"fake-ip-filter"`
 	DefaultNameserver []string          `yaml:"default-nameserver"`
 	NameServerPolicy  map[string]string `yaml:"nameserver-policy"`
+	SearchDomains     []string          `yaml:"search-domains"`
 }
 
 type RawFallbackFilter struct {
@@ -562,7 +566,7 @@ func parseNameServer(servers []string) ([]dns.NameServer, error) {
 			addr, err = hostWithDefaultPort(u.Host, "853")
 			dnsNetType = "tcp-tls" // DNS over TLS
 		case "https":
-			clearURL := url.URL{Scheme: "https", Host: u.Host, Path: u.Path}
+			clearURL := url.URL{Scheme: "https", Host: u.Host, Path: u.Path, User: u.User}
 			addr = clearURL.String()
 			dnsNetType = "https" // DNS over HTTPS
 		case "dhcp":
@@ -700,6 +704,18 @@ func parseDNS(rawCfg *RawConfig, hosts *trie.DomainTrie) (*DNS, error) {
 		dnsCfg.Hosts = hosts
 	}
 
+	if len(cfg.SearchDomains) != 0 {
+		for _, domain := range cfg.SearchDomains {
+			if strings.HasPrefix(domain, ".") || strings.HasSuffix(domain, ".") {
+				return nil, errors.New("search domains should not start or end with '.'")
+			}
+			if strings.Contains(domain, ":") {
+				return nil, errors.New("search domains are for ipv4 only and should not contain ports")
+			}
+		}
+		dnsCfg.SearchDomains = cfg.SearchDomains
+	}
+
 	return dnsCfg, nil
 }
 

constant/adapters.go

@@ -101,8 +101,9 @@ type ProxyAdapter interface {
 }
 
 type DelayHistory struct {
-	Time  time.Time `json:"time"`
-	Delay uint16    `json:"delay"`
+	Time      time.Time `json:"time"`
+	Delay     uint16    `json:"delay"`
+	MeanDelay uint16    `json:"meanDelay"`
 }
 
 type Proxy interface {
@@ -110,7 +111,7 @@ type Proxy interface {
 	Alive() bool
 	DelayHistory() []DelayHistory
 	LastDelay() uint16
-	URLTest(ctx context.Context, url string) (uint16, error)
+	URLTest(ctx context.Context, url string) (uint16, uint16, error)
 
 	// Deprecated: use DialContext instead.
 	Dial(metadata *Metadata) (Conn, error)

constant/context.go

@@ -3,7 +3,7 @@ package constant
 import (
 	"net"
 
-	"github.com/gofrs/uuid"
+	"github.com/gofrs/uuid/v5"
 )
 
 type PlainContext interface {

constant/dns.go

@@ -3,13 +3,13 @@ package constant
 import (
 	"encoding/json"
 	"errors"
+	"fmt"
 )
 
 // DNSModeMapping is a mapping for EnhancedMode enum
 var DNSModeMapping = map[string]DNSMode{
-	DNSNormal.String():  DNSNormal,
-	DNSFakeIP.String():  DNSFakeIP,
-	DNSMapping.String(): DNSMapping,
+	DNSNormal.String(): DNSNormal,
+	DNSFakeIP.String(): DNSFakeIP,
 }
 
 const (
@@ -28,7 +28,7 @@ func (e *DNSMode) UnmarshalYAML(unmarshal func(any) error) error {
 	}
 	mode, exist := DNSModeMapping[tp]
 	if !exist {
-		return errors.New("invalid mode")
+		return fmt.Errorf("invalid mode: %s", tp)
 	}
 	*e = mode
 	return nil

constant/metadata.go

@@ -3,6 +3,7 @@ package constant
 import (
 	"encoding/json"
 	"net"
+	"net/netip"
 	"strconv"
 
 	"github.com/Dreamacro/clash/transport/socks5"
@@ -72,6 +73,8 @@ type Metadata struct {
 	DNSMode      DNSMode `json:"dnsMode"`
 	ProcessPath  string  `json:"processPath"`
 	SpecialProxy string  `json:"specialProxy"`
+
+	OriginDst netip.AddrPort `json:"-"`
 }
 
 func (m *Metadata) RemoteAddress() string {

constant/path.go

@@ -4,6 +4,7 @@ import (
 	"os"
 	P "path"
 	"path/filepath"
+	"strings"
 )
 
 const Name = "clash"
@@ -51,6 +52,18 @@ func (p *path) Resolve(path string) string {
 	return path
 }
 
+// IsSubPath return true if path is a subpath of homedir
+func (p *path) IsSubPath(path string) bool {
+	homedir := p.HomeDir()
+	path = p.Resolve(path)
+	rel, err := filepath.Rel(homedir, path)
+	if err != nil {
+		return false
+	}
+
+	return !strings.Contains(rel, "..")
+}
+
 func (p *path) MMDB() string {
 	return P.Join(p.homeDir, "Country.mmdb")
 }

constant/rule.go

@@ -12,6 +12,7 @@ const (
 	DstPort
 	Process
 	ProcessPath
+	IPSet
 	MATCH
 )
 
@@ -39,6 +40,8 @@ func (rt RuleType) String() string {
 		return "Process"
 	case ProcessPath:
 		return "ProcessPath"
+	case IPSet:
+		return "IPSet"
 	case MATCH:
 		return "Match"
 	default:

context/conn.go

@@ -5,7 +5,7 @@ import (
 
 	C "github.com/Dreamacro/clash/constant"
 
-	"github.com/gofrs/uuid"
+	"github.com/gofrs/uuid/v5"
 )
 
 type ConnContext struct {

context/dns.go

@@ -1,7 +1,7 @@
 package context
 
 import (
-	"github.com/gofrs/uuid"
+	"github.com/gofrs/uuid/v5"
 	"github.com/miekg/dns"
 )
 

context/packetconn.go

@@ -5,7 +5,7 @@ import (
 
 	C "github.com/Dreamacro/clash/constant"
 
-	"github.com/gofrs/uuid"
+	"github.com/gofrs/uuid/v5"
 )
 
 type PacketConnContext struct {

dns/middleware.go

@@ -87,9 +87,15 @@ func withMapping(mapping *cache.LruCache) middleware {
 				case *D.A:
 					ip = a.A
 					ttl = a.Hdr.Ttl
+					if !ip.IsGlobalUnicast() {
+						continue
+					}
 				case *D.AAAA:
 					ip = a.AAAA
 					ttl = a.Hdr.Ttl
+					if !ip.IsGlobalUnicast() {
+						continue
+					}
 				default:
 					continue
 				}
@@ -181,9 +187,6 @@ func newHandler(resolver *Resolver, mapper *ResolverEnhancer) handler {
 
 	if mapper.mode == C.DNSFakeIP {
 		middlewares = append(middlewares, withFakeIP(mapper.fakePool))
-	}
-
-	if mapper.mode != C.DNSNormal {
 		middlewares = append(middlewares, withMapping(mapper.mapping))
 	}
 

dns/resolver.go

@@ -39,6 +39,7 @@ type Resolver struct {
 	group                 singleflight.Group
 	lruCache              *cache.LruCache
 	policy                *trie.DomainTrie
+	searchDomains         []string
 }
 
 // LookupIP request with TypeA and TypeAAAA, priority return TypeA
@@ -140,9 +141,14 @@ func (r *Resolver) ExchangeContext(ctx context.Context, m *D.Msg) (msg *D.Msg, e
 		msg = cache.(*D.Msg).Copy()
 		if expireTime.Before(now) {
 			setMsgTTL(msg, uint32(1)) // Continue fetch
-			go r.exchangeWithoutCache(ctx, m)
+			go func() {
+				ctx, cancel := context.WithTimeout(context.Background(), resolver.DefaultDNSTimeout)
+				r.exchangeWithoutCache(ctx, m)
+				cancel()
+			}()
 		} else {
-			setMsgTTL(msg, uint32(time.Until(expireTime).Seconds()))
+			// updating TTL by subtracting common delta time from each DNS record
+			updateMsgTTL(msg, uint32(time.Until(expireTime).Seconds()))
 		}
 		return
 	}
@@ -161,7 +167,7 @@ func (r *Resolver) exchangeWithoutCache(ctx context.Context, m *D.Msg) (msg *D.M
 
 			msg := result.(*D.Msg)
 
-			putMsgToCache(r.lruCache, q.String(), msg)
+			putMsgToCache(r.lruCache, q.String(), q, msg)
 		}()
 
 		isIPReq := isIPRequest(q)
@@ -285,16 +291,33 @@ func (r *Resolver) lookupIP(ctx context.Context, host string, dnsType uint16) ([
 	query := &D.Msg{}
 	query.SetQuestion(D.Fqdn(host), dnsType)
 
-	msg, err := r.Exchange(query)
+	msg, err := r.ExchangeContext(ctx, query)
 	if err != nil {
 		return nil, err
 	}
 
 	ips := msgToIP(msg)
-	if len(ips) == 0 {
+	if len(ips) != 0 {
+		return ips, nil
+	} else if len(r.searchDomains) == 0 {
 		return nil, resolver.ErrIPNotFound
 	}
-	return ips, nil
+
+	// query provided search domains serially
+	for _, domain := range r.searchDomains {
+		q := &D.Msg{}
+		q.SetQuestion(D.Fqdn(fmt.Sprintf("%s.%s", host, domain)), dnsType)
+		msg, err := r.ExchangeContext(ctx, q)
+		if err != nil {
+			return nil, err
+		}
+		ips := msgToIP(msg)
+		if len(ips) != 0 {
+			return ips, nil
+		}
+	}
+
+	return nil, resolver.ErrIPNotFound
 }
 
 func (r *Resolver) msgToDomain(msg *D.Msg) string {
@@ -336,6 +359,7 @@ type Config struct {
 	Pool           *fakeip.Pool
 	Hosts          *trie.DomainTrie
 	Policy         map[string]NameServer
+	SearchDomains  []string
 }
 
 func NewResolver(config Config) *Resolver {
@@ -345,10 +369,11 @@ func NewResolver(config Config) *Resolver {
 	}
 
 	r := &Resolver{
-		ipv6:     config.IPv6,
-		main:     transform(config.Main, defaultResolver),
-		lruCache: cache.New(cache.WithSize(4096), cache.WithStale(true)),
-		hosts:    config.Hosts,
+		ipv6:          config.IPv6,
+		main:          transform(config.Main, defaultResolver),
+		lruCache:      cache.New(cache.WithSize(4096), cache.WithStale(true)),
+		hosts:         config.Hosts,
+		searchDomains: config.SearchDomains,
 	}
 
 	if len(config.Fallback) != 0 {

dns/util.go

@@ -6,6 +6,7 @@ import (
 	"errors"
 	"fmt"
 	"net"
+	"strings"
 	"time"
 
 	"github.com/Dreamacro/clash/common/cache"
@@ -13,17 +14,40 @@ import (
 	"github.com/Dreamacro/clash/log"
 
 	D "github.com/miekg/dns"
+	"github.com/samber/lo"
 )
 
-func putMsgToCache(c *cache.LruCache, key string, msg *D.Msg) {
+func minimalTTL(records []D.RR) uint32 {
+	return lo.MinBy(records, func(r1 D.RR, r2 D.RR) bool {
+		return r1.Header().Ttl < r2.Header().Ttl
+	}).Header().Ttl
+}
+
+func updateTTL(records []D.RR, ttl uint32) {
+	if len(records) == 0 {
+		return
+	}
+	delta := minimalTTL(records) - ttl
+	for i := range records {
+		records[i].Header().Ttl = lo.Clamp(records[i].Header().Ttl-delta, 1, records[i].Header().Ttl)
+	}
+}
+
+func putMsgToCache(c *cache.LruCache, key string, q D.Question, msg *D.Msg) {
+	// skip dns cache for acme challenge
+	if q.Qtype == D.TypeTXT && strings.HasPrefix(q.Name, "_acme-challenge.") {
+		log.Debugln("[DNS] dns cache ignored because of acme challenge for: %s", q.Name)
+		return
+	}
+
 	var ttl uint32
 	switch {
 	case len(msg.Answer) != 0:
-		ttl = msg.Answer[0].Header().Ttl
+		ttl = minimalTTL(msg.Answer)
 	case len(msg.Ns) != 0:
-		ttl = msg.Ns[0].Header().Ttl
+		ttl = minimalTTL(msg.Ns)
 	case len(msg.Extra) != 0:
-		ttl = msg.Extra[0].Header().Ttl
+		ttl = minimalTTL(msg.Extra)
 	default:
 		log.Debugln("[DNS] response msg empty: %#v", msg)
 		return
@@ -46,6 +70,12 @@ func setMsgTTL(msg *D.Msg, ttl uint32) {
 	}
 }
 
+func updateMsgTTL(msg *D.Msg, ttl uint32) {
+	updateTTL(msg.Answer, ttl)
+	updateTTL(msg.Ns, ttl)
+	updateTTL(msg.Extra, ttl)
+}
+
 func isIPRequest(q D.Question) bool {
 	return q.Qclass == D.ClassINET && (q.Qtype == D.TypeA || q.Qtype == D.TypeAAAA)
 }

docs/.vitepress/config.ts

@@ -0,0 +1,47 @@
+import { defineConfig } from 'vitepress'
+import locales from './locales'
+
+// https://vitepress.dev/reference/site-config
+export default defineConfig({
+  title: 'Clash',
+
+  base: '/clash/',
+
+  head: [
+    [
+      'link',
+      { rel: 'icon', type: "image/x-icon", href: '/clash/logo.png' }
+    ],
+  ],
+
+  locales: locales.locales,
+
+  lastUpdated: true,
+
+  themeConfig: {
+    search: {
+      provider: 'local',
+      options: {
+        locales: {
+          zh_CN: {
+            translations: {
+              button: {
+                buttonText: '搜索文档',
+                buttonAriaLabel: '搜索文档'
+              },
+              modal: {
+                noResultsText: '无法找到相关结果',
+                resetButtonTitle: '清除查询条件',
+                footer: {
+                  selectText: '选择',
+                  navigateText: '切换'
+                }
+              }
+            }
+          }
+        },
+
+      }
+    }
+  },
+})

docs/.vitepress/locales/en_US.ts

@@ -0,0 +1,60 @@
+import { createRequire } from 'module'
+import { defineConfig } from 'vitepress'
+import { generateSidebarChapter } from './side_bar.js'
+
+const require = createRequire(import.meta.url)
+
+const chapters = generateSidebarChapter('en_US', new Map([
+  ['introduction', 'Introduction'],
+  ['configuration', 'Configuration'],
+  ['premium', 'Premium'],
+  ['runtime', 'Runtime'],
+  ['advanced-usages', 'Advanced Usages'],
+]))
+
+export default defineConfig({
+  lang: 'en-US',
+
+  description: 'A rule-based tunnel in Go.',
+
+  themeConfig: {
+    nav: nav(),
+
+    logo: '/logo.png',
+
+    lastUpdatedText: 'Last updated at',
+
+    sidebar: chapters,
+
+    socialLinks: [
+      { icon: 'github', link: 'https://github.com/Dreamacro/clash' },
+    ],
+
+    editLink: {
+      pattern: 'https://github.com/Dreamacro/clash/edit/master/docs/:path',
+      text: 'Edit this page on GitHub'
+    },
+
+    outline: {
+      level: 'deep',
+      label: 'On this page',
+    },
+
+  }
+})
+
+function nav() {
+  return [
+    { text: 'Home', link: '/' },
+    { text: 'Configuration', link: '/configuration/configuration-reference' },
+    {
+      text: 'Download',
+      items: [
+        { text: 'Open-source Edition', link: 'https://github.com/Dreamacro/clash/releases/' },
+        { text: 'Premium Edition', link: 'https://github.com/Dreamacro/clash/releases/tag/premium' },
+      ]
+    }
+  ]
+}
+
+

docs/.vitepress/locales/index.ts

@@ -0,0 +1,20 @@
+import { defineConfig } from 'vitepress'
+import en_US from './en_US'
+import zh_CN from './zh_CN'
+
+export default defineConfig({
+  locales: {
+    root: {
+      label: 'English',
+      lang: en_US.lang,
+      themeConfig: en_US.themeConfig,
+      description: en_US.description
+    },
+    zh_CN: {
+      label: '简体中文',
+      lang: zh_CN.lang,
+      themeConfig: zh_CN.themeConfig,
+      description: zh_CN.description
+    }
+  }
+})

docs/.vitepress/locales/side_bar.ts

@@ -0,0 +1,78 @@
+import directoryTree from 'directory-tree'
+import fs from 'fs'
+import metadataParser from 'markdown-yaml-metadata-parser'
+
+function getMetadataFromDoc(path: string): { sidebarTitle?: string, sidebarOrder?: number } {
+  const fileContents = fs.readFileSync(path, 'utf8')
+
+  return metadataParser(fileContents).metadata
+}
+
+export function generateSidebarChapter(locale:string, chapterDirName: Map<string,string>): any[] {
+  if (chapterDirName.size < 1) {
+    console.error(chapterDirName)
+    throw new Error(`Could not genereate sidebar: chapterDirName is empty`)
+  }
+
+  var chapterPath = ''
+  var sidebar: any[] = []
+
+  for (const chapterDirKey of chapterDirName.keys()) {
+    if (locale !== 'en_US') {
+      chapterPath = `./${locale}/${chapterDirKey}`
+    } else {
+      chapterPath = `./${chapterDirKey}`
+    }
+
+    const tree = directoryTree(chapterPath)
+
+    if (!tree || !tree.children) {
+      console.error(tree)
+      throw new Error(`Could not genereate sidebar: invalid chapter at ${chapterPath}`)
+    }
+
+    let items: { sidebarOrder: number, text: string, link: string }[] = []
+
+    // Look into files in the chapter
+    for (const doc of tree.children) {
+      // make sure it's a .md file
+      if (doc.children || !doc.name.endsWith('.md'))
+        continue
+
+      const { sidebarOrder, sidebarTitle } = getMetadataFromDoc(doc.path)
+
+      if (!sidebarOrder)
+        throw new Error('Cannot find sidebarOrder in doc metadata: ' + doc.path)
+
+      if (!sidebarTitle)
+        throw new Error('Cannot find sidebarTitle in doc metadata: ' + doc.path)
+
+      if (chapterDirKey === 'introduction' && doc.name === '_dummy-index.md') {
+        // Override index page link
+        items.push({
+          sidebarOrder,
+          text: sidebarTitle,
+          link: '/' + (locale === 'en_US' ? '' : locale + '/') 
+        })
+      } else {
+        items.push({
+          sidebarOrder,
+          text: sidebarTitle,
+          link: "/" + doc.path
+        })
+      }
+    }
+
+    items = items.sort((a, b) => a.sidebarOrder - b.sidebarOrder)
+
+    // remove dash and capitalize first character of each word as chapter title
+    const text = chapterDirName.get(chapterDirKey) || chapterDirKey.split('-').join(' ').replace(/\b\w/g, l => l.toUpperCase())
+    sidebar.push({
+      text,
+      collapsed: false,
+      items,
+    })
+  }
+
+  return sidebar
+}

docs/.vitepress/locales/zh_CN.ts

@@ -0,0 +1,60 @@
+import { createRequire } from 'module'
+import { defineConfig } from 'vitepress'
+import { generateSidebarChapter } from './side_bar.js'
+
+const require = createRequire(import.meta.url)
+
+const chapters = generateSidebarChapter('zh_CN', new Map([
+  ['introduction', '简介'],
+  ['configuration', '配置'],
+  ['premium', 'Premium 版本'],
+  ['runtime', '运行时'],
+  ['advanced-usages', '高级用法'],
+]))
+
+export default defineConfig({
+  lang: 'zh-CN',
+
+  description: '基于规则的 Go 网络隧道. ',
+
+  themeConfig: {
+    nav: nav(),
+
+    logo: '/logo.png',
+
+    lastUpdatedText: '最后更新于',
+
+    sidebar: chapters,
+
+    socialLinks: [
+      { icon: 'github', link: 'https://github.com/Dreamacro/clash' },
+    ],
+
+    editLink: {
+      pattern: 'https://github.com/Dreamacro/clash/edit/master/docs/:path',
+      text: '在 GitHub 中编辑此页面'
+    },
+
+    docFooter: { prev: '上一篇', next: '下一篇' },
+
+    outline: {
+      level: 'deep',
+      label: '页面导航',
+    },
+
+  }
+})
+
+function nav() {
+  return [
+    { text: '主页', link: '/zh_CN/' },
+    { text: '配置', link: '/zh_CN/configuration/configuration-reference' },
+    {
+      text: '下载',
+      items: [
+        { text: 'GitHub 开源版', link: 'https://github.com/Dreamacro/clash/releases/' },
+        { text: 'Premium 版本', link: 'https://github.com/Dreamacro/clash/releases/tag/premium' },
+      ]
+    }
+  ]
+}

docs/advanced-usages/golang-api.md

@@ -0,0 +1,59 @@
+---
+sidebarTitle: Integrating Clash in Golang Programs
+sidebarOrder: 3
+---
+
+# Integrating Clash in Golang Programs
+
+If clash does not fit your own usage, you can use Clash in your own Golang code.
+
+There is already basic support:
+
+```go
+package main
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"net"
+
+	"github.com/Dreamacro/clash/adapter/outbound"
+	"github.com/Dreamacro/clash/constant"
+	"github.com/Dreamacro/clash/listener/socks"
+)
+
+func main() {
+	in := make(chan constant.ConnContext, 100)
+	defer close(in)
+
+	l, err := socks.New("127.0.0.1:10000", in)
+	if err != nil {
+		panic(err)
+	}
+	defer l.Close()
+
+	println("listen at:", l.Address())
+
+	direct := outbound.NewDirect()
+
+	for c := range in {
+		conn := c
+		metadata := conn.Metadata()
+		fmt.Printf("request incoming from %s to %s\n", metadata.SourceAddress(), metadata.RemoteAddress())
+		go func () {
+			remote, err := direct.DialContext(context.Background(), metadata)
+			if err != nil {
+				fmt.Printf("dial error: %s\n", err.Error())
+				return
+			}
+			relay(remote, conn.Conn())
+		}()
+	}
+}
+
+func relay(l, r net.Conn) {
+	go io.Copy(l, r)
+	io.Copy(r, l)
+}
+```

docs/advanced-usages/openconnect.md

@@ -0,0 +1,93 @@
+---
+sidebarTitle: Rule-based OpenConnect
+sidebarOrder: 2
+---
+
+# Rule-based OpenConnect
+
+OpenConnect supports Cisco AnyConnect SSL VPN, Juniper Network Connect, Palo Alto Networks (PAN) GlobalProtect SSL VPN, Pulse Connect Secure SSL VPN, F5 BIG-IP SSL VPN, FortiGate SSL VPN and Array Networks SSL VPN.
+
+For example, there would be a use case where your company uses Cisco AnyConnect for internal network access. Here I'll show you how you can use OpenConnect with policy routing powered by Clash.
+
+First, [install vpn-slice](https://github.com/dlenski/vpn-slice#requirements). This tool overrides default routing table behaviour of OpenConnect. Simply saying, it stops the VPN from overriding your default routes.
+
+Next you would have a script (let's say `tun0.sh`) similar to this:
+
+```sh
+#!/bin/bash
+ANYCONNECT_HOST="vpn.example.com"
+ANYCONNECT_USER="john"
+ANYCONNECT_PASSWORD="foobar"
+ROUTING_TABLE_ID="6667"
+TUN_INTERFACE="tun0"
+
+# Add --no-dtls if the server is in mainland China. UDP in China is choppy.
+echo "$ANYCONNECT_PASSWORD" | \
+  openconnect \
+    --non-inter \
+    --passwd-on-stdin \
+    --protocol=anyconnect \
+    --interface $TUN_INTERFACE \
+    --script "vpn-slice
+if [ \"\$reason\" = 'connect' ]; then
+  ip rule add from \$INTERNAL_IP4_ADDRESS table $ROUTING_TABLE_ID
+  ip route add default dev \$TUNDEV scope link table $ROUTING_TABLE_ID
+elif [ \"\$reason\" = 'disconnect' ]; then
+  ip rule del from \$INTERNAL_IP4_ADDRESS table $ROUTING_TABLE_ID
+  ip route del default dev \$TUNDEV scope link table $ROUTING_TABLE_ID
+fi" \
+    --user $ANYCONNECT_USER \
+    https://$ANYCONNECT_HOST
+```
+
+After that, we configure it as a systemd service. Create `/etc/systemd/system/tun0.service`:
+
+```ini
+[Unit]
+Description=Cisco AnyConnect VPN
+After=network-online.target
+Conflicts=shutdown.target sleep.target
+
+[Service]
+Type=simple
+ExecStart=/path/to/tun0.sh
+KillSignal=SIGINT
+Restart=always
+RestartSec=3
+StartLimitIntervalSec=0
+
+[Install]
+WantedBy=multi-user.target
+```
+
+Then we enable & start the service.
+
+```shell
+chmod +x /path/to/tun0.sh
+systemctl daemon-reload
+systemctl enable tun0
+systemctl start tun0
+```
+
+From here you can look at the logs to see if it's running properly. Simple way is to look at if `tun0` interface has been created.
+
+Similar to the Wireguard one, having an outbound to a TUN device is simple as adding a proxy group:
+
+```yaml
+proxy-groups:
+  - name: Cisco AnyConnect VPN
+    type: select
+    interface-name: tun0
+    proxies:
+      - DIRECT
+```
+
+... and it's ready to use! Add the desired rules:
+
+```yaml
+rules:
+  - DOMAIN-SUFFIX,internal.company.com,Cisco AnyConnect VPN
+```
+
+You should look at the debug level logs when something does not seem right.
+

docs/advanced-usages/wireguard.md

@@ -0,0 +1,40 @@
+---
+sidebarTitle: Rule-based Wireguard
+sidebarOrder: 1
+---
+
+# Rule-based Wireguard
+
+Suppose your kernel supports Wireguard and you have it enabled. The `Table` option stops _wg-quick_ from overriding default routes.
+
+Example `wg0.conf`:
+
+```ini
+[Interface]
+PrivateKey = ...
+Address = 172.16.0.1/32
+MTU = ...
+Table = off
+PostUp = ip rule add from 172.16.0.1/32 table 6666
+
+[Peer]
+AllowedIPs = 0.0.0.0/0
+AllowedIPs = ::/0
+PublicKey = ...
+Endpoint = ...
+```
+
+Then in Clash you would only need to have a DIRECT proxy group that has a specific outbound interface:
+
+```yaml
+proxy-groups:
+  - name: Wireguard
+    type: select
+    interface-name: wg0
+    proxies:
+      - DIRECT
+rules:
+  - DOMAIN,google.com,Wireguard
+```
+
+This should perform better than whereas if Clash implemented its own userspace Wireguard client. Wireguard is supported in the kernel.

docs/configuration/configuration-reference.md

@@ -0,0 +1,480 @@
+---
+sidebarTitle: Configuration Reference
+sidebarOrder: 7
+---
+
+# Configuration Reference
+
+```yaml
+# Port of HTTP(S) proxy server on the local end
+port: 7890
+
+# Port of SOCKS5 proxy server on the local end
+socks-port: 7891
+
+# Transparent proxy server port for Linux and macOS (Redirect TCP and TProxy UDP)
+# redir-port: 7892
+
+# Transparent proxy server port for Linux (TProxy TCP and TProxy UDP)
+# tproxy-port: 7893
+
+# HTTP(S) and SOCKS4(A)/SOCKS5 server on the same port
+# mixed-port: 7890
+
+# authentication of local SOCKS5/HTTP(S) server
+# authentication:
+#  - "user1:pass1"
+#  - "user2:pass2"
+
+# Set to true to allow connections to the local-end server from
+# other LAN IP addresses
+# allow-lan: false
+
+# This is only applicable when `allow-lan` is `true`
+# '*': bind all IP addresses
+# 192.168.122.11: bind a single IPv4 address
+# "[aaaa::a8aa:ff:fe09:57d8]": bind a single IPv6 address
+# bind-address: '*'
+
+# Clash router working mode
+# rule: rule-based packet routing
+# global: all packets will be forwarded to a single endpoint
+# direct: directly forward the packets to the Internet
+mode: rule
+
+# Clash by default prints logs to STDOUT
+# info / warning / error / debug / silent
+# log-level: info
+
+# When set to false, resolver won't translate hostnames to IPv6 addresses
+# ipv6: false
+
+# RESTful web API listening address
+external-controller: 127.0.0.1:9090
+
+# A relative path to the configuration directory or an absolute path to a
+# directory in which you put some static web resource. Clash core will then
+# serve it at `http://{{external-controller}}/ui`.
+# external-ui: folder
+
+# Secret for the RESTful API (optional)
+# Authenticate by spedifying HTTP header `Authorization: Bearer ${secret}`
+# ALWAYS set a secret if RESTful API is listening on 0.0.0.0
+# secret: ""
+
+# Outbound interface name
+# interface-name: en0
+
+# fwmark on Linux only
+# routing-mark: 6666
+
+# Static hosts for DNS server and connection establishment (like /etc/hosts)
+#
+# Wildcard hostnames are supported (e.g. *.clash.dev, *.foo.*.example.com)
+# Non-wildcard domain names have a higher priority than wildcard domain names
+# e.g. foo.example.com > *.example.com > .example.com
+# P.S. +.foo.com equals to .foo.com and foo.com
+# hosts:
+  # '*.clash.dev': 127.0.0.1
+  # '.dev': 127.0.0.1
+  # 'alpha.clash.dev': '::1'
+
+# profile:
+  # Store the `select` results in $HOME/.config/clash/.cache
+  # set false If you don't want this behavior
+  # when two different configurations have groups with the same name, the selected values are shared
+  # store-selected: true
+
+  # persistence fakeip
+  # store-fake-ip: false
+
+# DNS server settings
+# This section is optional. When not present, the DNS server will be disabled.
+dns:
+  enable: false
+  listen: 0.0.0.0:53
+  # ipv6: false # when the false, response to AAAA questions will be empty
+
+  # These nameservers are used to resolve the DNS nameserver hostnames below.
+  # Specify IP addresses only
+  default-nameserver:
+    - 114.114.114.114
+    - 8.8.8.8
+  # enhanced-mode: fake-ip
+  fake-ip-range: 198.18.0.1/16 # Fake IP addresses pool CIDR
+  # use-hosts: true # lookup hosts and return IP record
+
+  # search-domains: [local] # search domains for A/AAAA record
+
+  # Hostnames in this list will not be resolved with fake IPs
+  # i.e. questions to these domain names will always be answered with their
+  # real IP addresses
+  # fake-ip-filter:
+  #   - '*.lan'
+  #   - localhost.ptlogin2.qq.com
+
+  # Supports UDP, TCP, DoT, DoH. You can specify the port to connect to.
+  # All DNS questions are sent directly to the nameserver, without proxies
+  # involved. Clash answers the DNS question with the first result gathered.
+  nameserver:
+    - 114.114.114.114 # default value
+    - 8.8.8.8 # default value
+    - tls://dns.rubyfish.cn:853 # DNS over TLS
+    - https://1.1.1.1/dns-query # DNS over HTTPS
+    - dhcp://en0 # dns from dhcp
+    # - '8.8.8.8#en0'
+
+  # When `fallback` is present, the DNS server will send concurrent requests
+  # to the servers in this section along with servers in `nameservers`.
+  # The answers from fallback servers are used when the GEOIP country
+  # is not `CN`.
+  # fallback:
+  #   - tcp://1.1.1.1
+  #   - 'tcp://1.1.1.1#en0'
+
+  # If IP addresses resolved with servers in `nameservers` are in the specified
+  # subnets below, they are considered invalid and results from `fallback`
+  # servers are used instead.
+  #
+  # IP address resolved with servers in `nameserver` is used when
+  # `fallback-filter.geoip` is true and when GEOIP of the IP address is `CN`.
+  #
+  # If `fallback-filter.geoip` is false, results from `nameserver` nameservers
+  # are always used if not match `fallback-filter.ipcidr`.
+  #
+  # This is a countermeasure against DNS pollution attacks.
+  # fallback-filter:
+  #   geoip: true
+  #   geoip-code: CN
+  #   ipcidr:
+  #     - 240.0.0.0/4
+  #   domain:
+  #     - '+.google.com'
+  #     - '+.facebook.com'
+  #     - '+.youtube.com'
+
+  # Lookup domains via specific nameservers
+  # nameserver-policy:
+  #   'www.baidu.com': '114.114.114.114'
+  #   '+.internal.crop.com': '10.0.0.1'
+
+proxies:
+  # Shadowsocks
+  # The supported ciphers (encryption methods):
+  #   aes-128-gcm aes-192-gcm aes-256-gcm
+  #   aes-128-cfb aes-192-cfb aes-256-cfb
+  #   aes-128-ctr aes-192-ctr aes-256-ctr
+  #   rc4-md5 chacha20-ietf xchacha20
+  #   chacha20-ietf-poly1305 xchacha20-ietf-poly1305
+  - name: "ss1"
+    type: ss
+    server: server
+    port: 443
+    cipher: chacha20-ietf-poly1305
+    password: "password"
+    # udp: true
+
+  - name: "ss2"
+    type: ss
+    server: server
+    port: 443
+    cipher: chacha20-ietf-poly1305
+    password: "password"
+    plugin: obfs
+    plugin-opts:
+      mode: tls # or http
+      # host: bing.com
+
+  - name: "ss3"
+    type: ss
+    server: server
+    port: 443
+    cipher: chacha20-ietf-poly1305
+    password: "password"
+    plugin: v2ray-plugin
+    plugin-opts:
+      mode: websocket # no QUIC now
+      # tls: true # wss
+      # skip-cert-verify: true
+      # host: bing.com
+      # path: "/"
+      # mux: true
+      # headers:
+      #   custom: value
+
+  # vmess
+  # cipher support auto/aes-128-gcm/chacha20-poly1305/none
+  - name: "vmess"
+    type: vmess
+    server: server
+    port: 443
+    uuid: uuid
+    alterId: 32
+    cipher: auto
+    # udp: true
+    # tls: true
+    # skip-cert-verify: true
+    # servername: example.com # priority over wss host
+    # network: ws
+    # ws-opts:
+    #   path: /path
+    #   headers:
+    #     Host: v2ray.com
+    #   max-early-data: 2048
+    #   early-data-header-name: Sec-WebSocket-Protocol
+
+  - name: "vmess-h2"
+    type: vmess
+    server: server
+    port: 443
+    uuid: uuid
+    alterId: 32
+    cipher: auto
+    network: h2
+    tls: true
+    h2-opts:
+      host:
+        - http.example.com
+        - http-alt.example.com
+      path: /
+
+  - name: "vmess-http"
+    type: vmess
+    server: server
+    port: 443
+    uuid: uuid
+    alterId: 32
+    cipher: auto
+    # udp: true
+    # network: http
+    # http-opts:
+    #   # method: "GET"
+    #   # path:
+    #   #   - '/'
+    #   #   - '/video'
+    #   # headers:
+    #   #   Connection:
+    #   #     - keep-alive
+
+  - name: vmess-grpc
+    server: server
+    port: 443
+    type: vmess
+    uuid: uuid
+    alterId: 32
+    cipher: auto
+    network: grpc
+    tls: true
+    servername: example.com
+    # skip-cert-verify: true
+    grpc-opts:
+      grpc-service-name: "example"
+
+  # socks5
+  - name: "socks"
+    type: socks5
+    server: server
+    port: 443
+    # username: username
+    # password: password
+    # tls: true
+    # skip-cert-verify: true
+    # udp: true
+
+  # http
+  - name: "http"
+    type: http
+    server: server
+    port: 443
+    # username: username
+    # password: password
+    # tls: true # https
+    # skip-cert-verify: true
+    # sni: custom.com
+
+  # Snell
+  # Beware that there's currently no UDP support yet
+  - name: "snell"
+    type: snell
+    server: server
+    port: 44046
+    psk: yourpsk
+    # version: 2
+    # obfs-opts:
+      # mode: http # or tls
+      # host: bing.com
+
+  # Trojan
+  - name: "trojan"
+    type: trojan
+    server: server
+    port: 443
+    password: yourpsk
+    # udp: true
+    # sni: example.com # aka server name
+    # alpn:
+    #   - h2
+    #   - http/1.1
+    # skip-cert-verify: true
+
+  - name: trojan-grpc
+    server: server
+    port: 443
+    type: trojan
+    password: "example"
+    network: grpc
+    sni: example.com
+    # skip-cert-verify: true
+    udp: true
+    grpc-opts:
+      grpc-service-name: "example"
+
+  - name: trojan-ws
+    server: server
+    port: 443
+    type: trojan
+    password: "example"
+    network: ws
+    sni: example.com
+    # skip-cert-verify: true
+    udp: true
+    # ws-opts:
+      # path: /path
+      # headers:
+      #   Host: example.com
+
+  # ShadowsocksR
+  # The supported ciphers (encryption methods): all stream ciphers in ss
+  # The supported obfses:
+  #   plain http_simple http_post
+  #   random_head tls1.2_ticket_auth tls1.2_ticket_fastauth
+  # The supported supported protocols:
+  #   origin auth_sha1_v4 auth_aes128_md5
+  #   auth_aes128_sha1 auth_chain_a auth_chain_b
+  - name: "ssr"
+    type: ssr
+    server: server
+    port: 443
+    cipher: chacha20-ietf
+    password: "password"
+    obfs: tls1.2_ticket_auth
+    protocol: auth_sha1_v4
+    # obfs-param: domain.tld
+    # protocol-param: "#"
+    # udp: true
+
+proxy-groups:
+  # relay chains the proxies. proxies shall not contain a relay. No UDP support.
+  # Traffic: clash <-> http <-> vmess <-> ss1 <-> ss2 <-> Internet
+  - name: "relay"
+    type: relay
+    proxies:
+      - http
+      - vmess
+      - ss1
+      - ss2
+
+  # url-test select which proxy will be used by benchmarking speed to a URL.
+  - name: "auto"
+    type: url-test
+    proxies:
+      - ss1
+      - ss2
+      - vmess1
+    # tolerance: 150
+    # lazy: true
+    url: 'http://www.gstatic.com/generate_204'
+    interval: 300
+
+  # fallback selects an available policy by priority. The availability is tested by accessing an URL, just like an auto url-test group.
+  - name: "fallback-auto"
+    type: fallback
+    proxies:
+      - ss1
+      - ss2
+      - vmess1
+    url: 'http://www.gstatic.com/generate_204'
+    interval: 300
+
+  # load-balance: The request of the same eTLD+1 will be dial to the same proxy.
+  - name: "load-balance"
+    type: load-balance
+    proxies:
+      - ss1
+      - ss2
+      - vmess1
+    url: 'http://www.gstatic.com/generate_204'
+    interval: 300
+    # strategy: consistent-hashing # or round-robin
+
+  # select is used for selecting proxy or proxy group
+  # you can use RESTful API to switch proxy is recommended for use in GUI.
+  - name: Proxy
+    type: select
+    # disable-udp: true
+    # filter: 'someregex'
+    proxies:
+      - ss1
+      - ss2
+      - vmess1
+      - auto
+
+  # direct to another interfacename or fwmark, also supported on proxy
+  - name: en1
+    type: select
+    interface-name: en1
+    routing-mark: 6667
+    proxies:
+      - DIRECT
+
+  - name: UseProvider
+    type: select
+    use:
+      - provider1
+    proxies:
+      - Proxy
+      - DIRECT
+
+proxy-providers:
+  provider1:
+    type: http
+    url: "url"
+    interval: 3600
+    path: ./provider1.yaml
+    health-check:
+      enable: true
+      interval: 600
+      # lazy: true
+      url: http://www.gstatic.com/generate_204
+  test:
+    type: file
+    path: /test.yaml
+    health-check:
+      enable: true
+      interval: 36000
+      url: http://www.gstatic.com/generate_204
+
+tunnels:
+  # one line config
+  - tcp/udp,127.0.0.1:6553,114.114.114.114:53,proxy
+  - tcp,127.0.0.1:6666,rds.mysql.com:3306,vpn
+  # full yaml config
+  - network: [tcp, udp]
+    address: 127.0.0.1:7777
+    target: target.com
+    proxy: proxy
+
+rules:
+  - DOMAIN-SUFFIX,google.com,auto
+  - DOMAIN-KEYWORD,google,auto
+  - DOMAIN,google.com,auto
+  - DOMAIN-SUFFIX,ad.com,REJECT
+  - SRC-IP-CIDR,192.168.1.201/32,DIRECT
+  # optional param "no-resolve" for IP rules (GEOIP, IP-CIDR, IP-CIDR6)
+  - IP-CIDR,127.0.0.0/8,DIRECT
+  - GEOIP,CN,DIRECT
+  - DST-PORT,80,DIRECT
+  - SRC-PORT,7777,DIRECT
+  - RULE-SET,apple,REJECT # Premium only
+  - MATCH,auto
+```

docs/configuration/dns.md

@@ -0,0 +1,72 @@
+---
+sidebarTitle: Clash DNS
+sidebarOrder: 6
+---
+
+# Clash DNS
+
+Since some parts of Clash run on the Layer 3 (Network Layer), they would've been impossible to obtain domain names of the packets for rule-based routing.
+
+*Enter fake-ip*. It enables rule-based routing, minimises the impact of DNS pollution attack and improves network performance, sometimes drastically.
+
+## fake-ip
+
+The concept of "fake IP" addresses is originated from [RFC 3089](https://tools.ietf.org/rfc/rfc3089):
+
+> A "fake IP" address is used as a key to look up the corresponding "FQDN" information.
+
+The default CIDR for the fake-ip pool is `198.18.0.1/16`, a reserved IPv4 address space, which can be changed in `dns.fake-ip-range`.
+
+When a DNS request is sent to the Clash DNS, the core allocates a *free* fake-ip address from the pool, by managing an internal mapping of domain names and their fake-ip addresses.
+
+Take an example of accessing `http://google.com` with your browser.
+
+1. The browser asks Clash DNS for the IP address of `google.com`
+2. Clash checks the internal mapping and returned `198.18.1.5`
+3. The browser sends an HTTP request to `198.18.1.5` on `80/tcp`
+4. When receiving the inbound packet for `198.18.1.5`, Clash looks up the internal mapping and realises the client is actually sending a packet to `google.com`
+5. Depending on the rules:
+
+    1. Clash may just send the domain name to an outbound proxy like SOCKS5 or shadowsocks and establish the connection with the proxy server
+
+    2. or Clash might look for the real IP address of `google.com`, in the case of encountering a `SCRIPT`, `GEOIP`, `IP-CIDR` rule, or the case of DIRECT outbound
+
+Being a confusing concept, I'll take another example of accessing `http://google.com` with the cURL utility:
+
+```txt{2,3,5,6,8,9}
+$ curl -v http://google.com
+<---- cURL asks your system DNS (Clash) about the IP address of google.com
+----> Clash decided 198.18.1.70 should be used as google.com and remembers it
+*   Trying 198.18.1.70:80...
+<---- cURL connects to 198.18.1.70 tcp/80
+----> Clash will accept the connection immediately, and..
+* Connected to google.com (198.18.1.70) port 80 (#0)
+----> Clash looks up in its memory and found 198.18.1.70 being google.com
+----> Clash looks up in the rules and sends the packet via the matching outbound
+> GET / HTTP/1.1
+> Host: google.com
+> User-Agent: curl/8.0.1
+> Accept: */*
+> 
+< HTTP/1.1 301 Moved Permanently
+< Location: http://www.google.com/
+< Content-Type: text/html; charset=UTF-8
+< Content-Security-Policy-Report-Only: object-src 'none';base-uri 'self';script-src 'nonce-ahELFt78xOoxhySY2lQ34A' 'strict-dynamic' 'report-sample' 'unsafe-eval' 'unsafe-inline' https: http:;report-uri https://csp.withgoogle.com/csp/gws/other-hp
+< Date: Thu, 11 May 2023 06:52:19 GMT
+< Expires: Sat, 10 Jun 2023 06:52:19 GMT
+< Cache-Control: public, max-age=2592000
+< Server: gws
+< Content-Length: 219
+< X-XSS-Protection: 0
+< X-Frame-Options: SAMEORIGIN
+< 
+<HTML><HEAD><meta http-equiv="content-type" content="text/html;charset=utf-8">
+<TITLE>301 Moved</TITLE></HEAD><BODY>
+<H1>301 Moved</H1>
+The document has moved
+<A HREF="http://www.google.com/">here</A>.
+</BODY></HTML>
+* Connection #0 to host google.com left intact
+```
+
+<!-- TODO: nameserver, fallback, fallback-filter, hosts, search-domains, fake-ip-filter, nameserver-policy -->

docs/configuration/getting-started.md

@@ -0,0 +1,76 @@
+---
+sidebarTitle: Getting Started
+sidebarOrder: 2
+---
+
+# Getting Started
+
+It's recommended that you read the [Introduction](/configuration/introduction) before proceeding. After you have a brief understanding of how Clash works, you can start writing your own configuration.
+
+## Configuration Files
+
+The main configuration file is called `config.yaml`. By default, Clash reads the configuration files at `$HOME/.config/clash`. If it doesn't exist, Clash will generate a minimal configuration file at that location.
+
+If you want to place your configurations elsewhere (e.g. `/etc/clash`), you can use command-line option `-d` to specify a configuration directory:
+
+```shell
+clash -d . # current directory
+clash -d /etc/clash
+```
+
+Or, you can use option `-f` to specify a configuration file:
+
+```shell
+clash -f ./config.yaml
+clash -f /etc/clash/config.yaml
+```
+
+## Special Syntaxes
+
+There are some special syntaxes in Clash configuration files, of which you might want to be aware:
+
+### IPv6 Addresses
+
+You should wrap IPv6 addresses in square brackets, for example:
+
+```txt
+[aaaa::a8aa:ff:fe09:57d8]
+```
+
+### DNS Wildcard Domain Matching
+
+In some cases, you will need to match against wildcard domains. For example, when you're setting up [Clash DNS](/configuration/dns), you might want to match against all subdomains of `localdomain`.
+
+Clash do offer support on matching different levels of wildcard domains in the DNS configuration, while the syntaxes defined below:
+
+::: tip
+Any domain with these characters should be wrapped with single quotes (`'`). For example, `'*.google.com'`.
+Static domain has a higher priority than wildcard domain (foo.example.com > *.example.com > .example.com).
+:::
+
+Use an asterisk (`*`) to match against a single-level wildcard subdomain.
+
+| Expression | Matches | Does Not Match |
+| ---------- | ------- | -------------- |
+| `*.google.com` | `www.google.com` | `google.com` |
+| `*.bar.google.com` | `foo.bar.google.com` | `bar.google.com` |
+| `*.*.google.com` | `thoughtful.sandbox.google.com` | `one.two.three.google.com` |
+
+Use a dot sign (`.`) to match against multi-level wildcard subdomains.
+
+| Expression | Matches | Does Not Match |
+| ---------- | ------- | -------------- |
+| `.google.com` | `www.google.com` | `google.com` |
+| `.google.com` | `thoughtful.sandbox.google.com` | `google.com` |
+| `.google.com` | `one.two.three.google.com` | `google.com` |
+
+Use a plus sign (`+`) to match against multi-level wildcard subdomains.
+
+`+` wildcard works like DOMAIN-SUFFIX, you can quickly match multi level at a time.
+
+| Expression | Matches |
+| ---------- | ------- |
+| `+.google.com` | `google.com` |
+| `+.google.com` | `www.google.com` |
+| `+.google.com` | `thoughtful.sandbox.google.com` |
+| `+.google.com` | `one.two.three.google.com` |

docs/configuration/inbound.md

@@ -0,0 +1,69 @@
+---
+sidebarTitle: Inbound
+sidebarOrder: 3
+---
+
+# Inbound
+
+Clash supports multiple inbound protocols, including:
+
+- SOCKS5
+- HTTP(S)
+- Redirect TCP
+- TProxy TCP
+- TProxy UDP
+- Linux TUN device (Premium only)
+
+Connections to any inbound protocol listed above will be handled by the same internal rule-matching engine. That is to say, Clash does not (currently) support different rule sets for different inbounds.
+
+## Configuration
+
+```yaml
+# Port of HTTP(S) proxy server on the local end
+# port: 7890
+
+# Port of SOCKS5 proxy server on the local end
+# socks-port: 7891
+
+# HTTP(S) and SOCKS4(A)/SOCKS5 server on the same port
+mixed-port: 7890
+
+# Transparent proxy server port for Linux and macOS (Redirect TCP and TProxy UDP)
+# redir-port: 7892
+
+# Transparent proxy server port for Linux (TProxy TCP and TProxy UDP)
+# tproxy-port: 7893
+
+# Allow clients other than 127.0.0.1 to connect to the inbounds
+allow-lan: false
+```
+
+## The Mixed Port
+
+The mixed port is a special port that supports both HTTP(S) and SOCKS5 protocols. You can have any programs that support either HTTP or SOCKS proxy to connect to this port, for example:
+
+```shell
+$ curl -x socks5h://127.0.0.1:7890 -v http://connect.rom.miui.com/generate_204
+*   Trying 127.0.0.1:7890...
+* SOCKS5 connect to connect.rom.miui.com:80 (remotely resolved)
+* SOCKS5 request granted.
+* Connected to (nil) (127.0.0.1) port 7890 (#0)
+> GET /generate_204 HTTP/1.1
+> Host: connect.rom.miui.com
+> User-Agent: curl/7.81.0
+> Accept: */*
+> 
+* Mark bundle as not supporting multiuse
+< HTTP/1.1 204 No Content
+< Date: Thu, 11 May 2023 06:18:22 GMT
+< Connection: keep-alive
+< Content-Type: text/plain
+< 
+* Connection #0 to host (nil) left intact
+```
+
+## Redirect and TProxy
+
+Redirect and TProxy are two different ways of implementing transparent proxying. They are both supported by Clash.
+
+However, you most likely don't need to mess with these two inbounds - we recommend using [Clash Premium](/premium/introduction) if you want to use transparent proxying, as it has built-in support of the automatic management of the route table, rules and nftables.

docs/configuration/introduction.md

@@ -0,0 +1,38 @@
+---
+sidebarTitle: Introduction
+sidebarOrder: 1
+---
+
+# Introduction
+
+In this chapter, we'll cover the common features of Clash and how they should be used and configured.
+
+Clash uses [YAML](https://yaml.org), _YAML Ain't Markup Language_, for configuration files. YAML is designed to be easy to be read, be written, and be interpreted by computers, and is commonly used for exact configuration files.
+
+## Understanding how Clash works
+
+Before proceeding, it's important to understand how Clash works, in which there are two critical components:
+
+![](/assets/connection-flow.png)
+
+<!-- https://excalidraw.com/clash-connection-flow#json=OHsOdaqAUPuuN7VPvdZ9Z,NT7rRrtzRgbVIM0tpkPnGA -->
+
+### Inbound
+
+Inbound is the component that listens on the local end. It works by opening a local port and listening for incoming connections. When a connection comes in, Clash looks up the rules that are configured in the configuration file, and decides which outbound that the connection should go next.
+
+### Outbound
+
+Outbound is the component that connects to the remote end. Depending on the configuration, it can be a specific network interface, a proxy server, or a [proxy group](./outbound#proxy-groups).
+
+## Rule-based Routing
+
+Clash supports rule-based routing, which means you can route packets to different outbounds based on the a variety of contraints. The rules can be defined in the `rules` section of the configuration file.
+
+There's a number of available rule types, and each rule type has its own syntax. The general syntax of a rule is:
+
+```txt
+TYPE,ARGUMENT,POLICY(,no-resolve)
+```
+
+In the upcoming guides, you will learn more about how rules can be configured.

docs/configuration/outbound.md

@@ -0,0 +1,437 @@
+---
+sidebarTitle: Outbound
+sidebarOrder: 4
+---
+
+# Outbound
+
+There are several types of outbound targets in Clash. Each type has its own features and usage scenarios. In this page, we'll cover the common features of each type and how they should be used and configured.
+
+[[toc]]
+
+## Proxies
+
+Proxies are some outbound targets that you can configure. Like proxy servers, you define destinations for the packets here.
+
+### Shadowsocks
+
+Clash supports the following ciphers (encryption methods) for Shadowsocks:
+
+| Family | Ciphers |
+| ------ | ------- |
+| AEAD | aes-128-gcm, aes-192-gcm, aes-256-gcm, chacha20-ietf-poly1305, xchacha20-ietf-poly1305 |
+| Stream | aes-128-cfb, aes-192-cfb, aes-256-cfb, rc4-md5, chacha20-ietf, xchacha20 |
+| Block | aes-128-ctr, aes-192-ctr, aes-256-ctr |
+
+In addition, Clash also supports popular Shadowsocks plugins `obfs` and `v2ray-plugin`.
+
+::: code-group
+
+```yaml [basic]
+- name: "ss1"
+  type: ss
+  # interface-name: eth0
+  # routing-mark: 1234
+  server: server
+  port: 443
+  cipher: chacha20-ietf-poly1305
+  password: "password"
+  # udp: true
+```
+
+```yaml [obfs]
+- name: "ss2"
+  type: ss
+  # interface-name: eth0
+  # routing-mark: 1234
+  server: server
+  port: 443
+  cipher: chacha20-ietf-poly1305
+  password: "password"
+  plugin: obfs
+  plugin-opts:
+    mode: tls # or http
+    # host: bing.com
+```
+
+```yaml [ws (websocket)]
+- name: "ss3"
+  type: ss
+  # interface-name: eth0
+  # routing-mark: 1234
+  server: server
+  port: 443
+  cipher: chacha20-ietf-poly1305
+  password: "password"
+  plugin: v2ray-plugin
+  plugin-opts:
+    mode: websocket # no QUIC now
+    # tls: true # wss
+    # skip-cert-verify: true
+    # host: bing.com
+    # path: "/"
+    # mux: true
+    # headers:
+    #   custom: value
+```
+
+:::
+
+### ShadowsocksR
+
+Clash supports the infamous anti-censorship protocol ShadowsocksR as well. The supported ciphers:
+
+| Family | Ciphers |
+| ------ | ------- |
+| Stream | aes-128-cfb, aes-192-cfb, aes-256-cfb, rc4-md5, chacha20-ietf, xchacha20 |
+
+Supported obfuscation methods:
+
+- plain
+- http_simple
+- http_post
+- random_head
+- tls1.2_ticket_auth
+- tls1.2_ticket_fastauth
+
+Supported protocols:
+
+- origin
+- auth_sha1_v4
+- auth_aes128_md5
+- auth_aes128_sha1
+- auth_chain_a
+- auth_chain_b
+
+```yaml
+- name: "ssr"
+  type: ssr
+  # interface-name: eth0
+  # routing-mark: 1234
+  server: server
+  port: 443
+  cipher: chacha20-ietf
+  password: "password"
+  obfs: tls1.2_ticket_auth
+  protocol: auth_sha1_v4
+  # obfs-param: domain.tld
+  # protocol-param: "#"
+  # udp: true
+```
+
+### Vmess
+
+Clash supports the following ciphers (encryption methods) for Vmess:
+
+- auto
+- aes-128-gcm
+- chacha20-poly1305
+- none
+
+::: code-group
+
+```yaml [basic]
+- name: "vmess"
+  type: vmess
+  # interface-name: eth0
+  # routing-mark: 1234
+  server: server
+  port: 443
+  uuid: uuid
+  alterId: 32
+  cipher: auto
+  # udp: true
+  # tls: true
+  # skip-cert-verify: true
+  # servername: example.com # priority over wss host
+  # network: ws
+  # ws-opts:
+  #   path: /path
+  #   headers:
+  #     Host: v2ray.com
+  #   max-early-data: 2048
+  #   early-data-header-name: Sec-WebSocket-Protocol
+```
+
+```yaml [HTTP]
+- name: "vmess-http"
+  type: vmess
+  # interface-name: eth0
+  # routing-mark: 1234
+  server: server
+  port: 443
+  uuid: uuid
+  alterId: 32
+  cipher: auto
+  # udp: true
+  # network: http
+  # http-opts:
+  #   # method: "GET"
+  #   # path:
+  #   #   - '/'
+  #   #   - '/video'
+  #   # headers:
+  #   #   Connection:
+  #   #     - keep-alive
+```
+
+```yaml [HTTP/2]
+- name: "vmess-h2"
+  type: vmess
+  # interface-name: eth0
+  # routing-mark: 1234
+  server: server
+  port: 443
+  uuid: uuid
+  alterId: 32
+  cipher: auto
+  network: h2
+  tls: true
+  h2-opts:
+    host:
+      - http.example.com
+      - http-alt.example.com
+    path: /
+```
+
+```yaml [gRPC]
+- name: vmess-grpc
+  type: vmess
+  # interface-name: eth0
+  # routing-mark: 1234
+  server: server
+  port: 443
+  uuid: uuid
+  alterId: 32
+  cipher: auto
+  network: grpc
+  tls: true
+  servername: example.com
+  # skip-cert-verify: true
+  grpc-opts:
+    grpc-service-name: "example"
+```
+
+:::
+
+### SOCKS5
+
+In addition, Clash supports SOCKS5 outbound as well:
+
+```yaml
+- name: "socks"
+  type: socks5
+  # interface-name: eth0
+  # routing-mark: 1234
+  server: server
+  port: 443
+  # username: username
+  # password: password
+  # tls: true
+  # skip-cert-verify: true
+  # udp: true
+```
+
+### HTTP
+
+Clash also supports HTTP outbound:
+
+::: code-group
+
+```yaml [HTTP]
+- name: "http"
+  type: http
+  # interface-name: eth0
+  # routing-mark: 1234
+  server: server
+  port: 443
+  # username: username
+  # password: password
+```
+
+```yaml [HTTPS]
+- name: "http"
+  type: http
+  # interface-name: eth0
+  # routing-mark: 1234
+  server: server
+  port: 443
+  tls: true
+  # skip-cert-verify: true
+  # sni: custom.com
+  # username: username
+  # password: password
+```
+
+:::
+
+### Snell
+
+Being an alternative protocol for anti-censorship, Clash has integrated support for Snell as well.
+
+::: tip
+Clash does not support Snell v4. ([#2466](https://github.com/Dreamacro/clash/issues/2466))
+:::
+
+```yaml
+# No UDP support yet
+- name: "snell"
+  type: snell
+  # interface-name: eth0
+  # routing-mark: 1234
+  server: server
+  port: 44046
+  psk: yourpsk
+  # version: 2
+  # obfs-opts:
+    # mode: http # or tls
+    # host: bing.com
+```
+
+### Trojan
+
+Clash has built support for the popular protocol Trojan:
+
+::: code-group
+
+```yaml [basic]
+- name: "trojan"
+  type: trojan
+  # interface-name: eth0
+  # routing-mark: 1234
+  server: server
+  port: 443
+  password: yourpsk
+  # udp: true
+  # sni: example.com # aka server name
+  # alpn:
+  #   - h2
+  #   - http/1.1
+  # skip-cert-verify: true
+```
+
+```yaml [gRPC]
+- name: trojan-grpc
+  type: trojan
+  # interface-name: eth0
+  # routing-mark: 1234
+  server: server
+  port: 443
+  password: "example"
+  network: grpc
+  sni: example.com
+  # skip-cert-verify: true
+  udp: true
+  grpc-opts:
+    grpc-service-name: "example"
+```
+
+```yaml  [ws (websocket)]
+- name: trojan-ws
+  type: trojan
+  # interface-name: eth0
+  # routing-mark: 1234
+  server: server
+  port: 443
+  password: "example"
+  network: ws
+  sni: example.com
+  # skip-cert-verify: true
+  udp: true
+  # ws-opts:
+    # path: /path
+    # headers:
+    #   Host: example.com
+```
+
+:::
+
+## Proxy Groups
+
+Proxy Groups are groups of proxies that you can use directly as a rule policy.
+
+### relay
+
+The request sent to this proxy group will be relayed through the specified proxy servers sequently. There's currently no UDP support on this. The specified proxy servers should not contain another relay.
+
+### url-test
+
+Clash benchmarks each proxy servers in the list, by sending HTTP HEAD requests to a specified URL through these servers periodically. It's possible to set a maximum tolerance value, benchmarking interval, and the target URL.
+
+### fallback
+
+Clash periodically tests the availability of servers in the list with the same mechanism of `url-test`. The first available server will be used.
+
+### load-balance
+
+The request to the same eTLD+1 will be dialed with the same proxy.
+
+### select
+
+The first server is by default used when Clash starts up. Users can choose the server to use with the RESTful API. In this mode, you can hardcode servers in the config or use [Proxy Providers](#proxy-providers).
+
+Either way, sometimes you might as well just route packets with a direct connection. In this case, you can use the `DIRECT` outbound.
+
+To use a different network interface, you will need to use a Proxy Group that contains a `DIRECT` outbound with the `interface-name` option set.
+
+```yaml
+- name: "My Wireguard Outbound"
+  type: select
+  interface-name: wg0
+  proxies: [ 'DIRECT' ]
+```
+
+## Proxy Providers
+
+Proxy Providers give users the power to load proxy server lists dynamically, instead of hardcoding them in the configuration file. There are currently two sources for a proxy provider to load server list from:
+
+- `http`: Clash loads the server list from a specified URL on startup. Clash periodically pulls the server list from remote if the `interval` option is set.
+- `file`: Clash loads the server list from a specified location on the filesystem on startup.
+
+Health check is available for both modes, and works exactly like `fallback` in Proxy Groups. The configuration format for the server list files is also exactly the same in the main configuration file:
+
+::: code-group
+
+```yaml [config.yaml]
+proxy-providers:
+  provider1:
+    type: http
+    url: "url"
+    interval: 3600
+    path: ./provider1.yaml
+    # filter: 'a|b' # golang regex string
+    health-check:
+      enable: true
+      interval: 600
+      # lazy: true
+      url: http://www.gstatic.com/generate_204
+  test:
+    type: file
+    path: /test.yaml
+    health-check:
+      enable: true
+      interval: 36000
+      url: http://www.gstatic.com/generate_204
+```
+
+```yaml [test.yaml]
+proxies:
+  - name: "ss1"
+    type: ss
+    server: server
+    port: 443
+    cipher: chacha20-ietf-poly1305
+    password: "password"
+
+  - name: "ss2"
+    type: ss
+    server: server
+    port: 443
+    cipher: chacha20-ietf-poly1305
+    password: "password"
+    plugin: obfs
+    plugin-opts:
+      mode: tls
+```
+
+:::

docs/configuration/rules.md

@@ -0,0 +1,159 @@
+---
+sidebarTitle: Rules
+sidebarOrder: 5
+---
+
+# Rules
+
+In the Getting Started guide, we covered the basics of rule-based matching in Clash. In this chapter, we'll cover all available rule types in the latest version of Clash.
+
+```txt
+TYPE,ARGUMENT,POLICY(,no-resolve)
+```
+
+The `no-resolve` option is optional, and it's used to skip DNS resolution for the rule. It's useful when you want to use `GEOIP`, `IP-CIDR`, `IP-CIDR6`, `SCRIPT` rules, but don't want to resolve the domain name to an IP address just yet.
+
+[[toc]]
+
+## Policy
+
+There are four types of POLICY for now, in which:
+
+- DIRECT: directly connects to the target through `interface-name` (does not lookup system route table)
+- REJECT: drops the packet
+- Proxy: routes the packet to the specified proxy server
+- Proxy Group: routes the packet to the specified proxy group
+
+## Types of rules
+
+There are a number of rules where one might find useful. The following section covers each rule type and how they should be used.
+
+### DOMAIN
+
+`DOMAIN,www.google.com,policy` routes only `www.google.com` to `policy`.
+
+### DOMAIN-SUFFIX
+
+`DOMAIN-SUFFIX,youtube.com,policy` routes any domain names that ends with `youtube.com`.
+
+In this case, `www.youtube.com` and `foo.bar.youtube.com` will be routed to `policy`.
+
+### DOMAIN-KEYWORD
+
+`DOMAIN-KEYWORD,google,policy` routes any domain names to policy that contains `google`.
+
+In this case, `www.google.com` or `googleapis.com` are routed to `policy`.
+
+### GEOIP
+
+GEOIP rules are used to route packets based on the **country code** of the target IP address. Clash uses [MaxMind GeoLite2](https://dev.maxmind.com/geoip/geoip2/geolite2/) database for this feature.
+
+::: warning
+When encountering this rule, Clash will resolve the domain name to an IP address and then look up the country code of the IP address. If you want to skip the DNS resolution, use `no-resolve` option.
+:::
+
+`GEOIP,CN,policy` routes any packets destined to a China IP address to `policy`.
+
+### IP-CIDR
+
+IP-CIDR rules are used to route packets based on the **destination IPv4 address** of the packet.
+
+::: warning
+When encountering this rule, Clash will resolve the domain name to an IP address. If you want to skip the DNS resolution, use `no-resolve` option.
+:::
+
+`IP-CIDR,127.0.0.0/8,DIRECT` routes any packets destined to `127.0.0.0/8` to the `DIRECT` outbound.
+
+### IP-CIDR6
+
+IP-CIDR6 rules are used to route packets based on the **destination IPv6 address** of the packet.
+
+::: warning
+When encountering this rule, Clash will resolve the domain name to an IP address. If you want to skip the DNS resolution, use `no-resolve` option.
+:::
+
+`IP-CIDR6,2620:0:2d0:200::7/32,policy` routes any packets destined to `2620:0:2d0:200::7/32` to `policy`.
+
+### SRC-IP-CIDR
+
+SRC-IP-CIDR rules are used to route packets based on the **source IPv4 address** of the packet.
+
+`SRC-IP-CIDR,192.168.1.201/32,DIRECT` routes any packets **from** `192.168.1.201/32` to the `DIRECT` policy.
+
+### SRC-PORT
+
+SRC-PORT rules are used to route packets based on the **source port** of the packet.
+
+`SRC-PORT,80,policy` routes any packets **from** the port 80 to `policy`.
+
+### DST-PORT
+
+DST-PORT rules are used to route packets based on the **destination port** of the packet.
+
+`DST-PORT,80,policy` routes any packets **to** the port 80 to `policy`.
+
+### PROCESS-NAME
+
+PROCESS-NAME rules are used to route packets based on the name of process that is sending the packet.
+
+::: warning
+Currently, only macOS, Linux, FreeBSD and Windows are supported.
+:::
+
+`PROCESS-NAME,nc,DIRECT` routes all packets from the process `nc` to the `DIRECT` outbound.
+
+### PROCESS-PATH
+
+PROCESS-PATH rules are used to route packets based on the PATH of process that is sending the packet.
+
+::: warning
+Currently, only macOS, Linux, FreeBSD and Windows are supported.
+:::
+
+`PROCESS-PATH,/bin/sh,DIRECT` routes all packets from the process `/bin/sh` to the `DIRECT` outbound.
+
+### IPSET
+
+IPSET rules are used to match against an IP set and route packets based on the result. According to the [official website of IPSET](https://ipset.netfilter.org/):
+
+> IP sets are a framework inside the Linux kernel, which can be administered by the ipset utility. Depending on the type, an IP set may store IP addresses, networks, (TCP/UDP) port numbers, MAC addresses, interface names or combinations of them in a way, which ensures lightning speed when matching an entry against a set.
+
+Therefore, this feature only works on Linux and requires `ipset` to be installed.
+
+::: warning
+When encountering this rule, Clash will resolve the domain name to an IP address. If you want to skip the DNS resolution, use `no-resolve` option.
+:::
+
+`IPSET,chinaip,DIRECT` routes all packets with destination IPs matching the `chinaip` IPSET to DIRECT outbound.
+
+### RULE-SET
+
+::: info
+This feature is only available in the [Premium](/premium/introduction) edtion.
+:::
+
+RULE-SET rules are used to route packets based on the result of a [rule provider](/premium/rule-providers). When Clash encounters this rule, it loads the rules from the specified rule provider and then matches the packet against the rules. If the packet matches any of the rules, the packet will be routed to the specified policy, otherwise the rule is skipped.
+
+::: warning
+When encountering RULE-SET, Clash will resolve the domain name to an IP address **when the ruleset is of type IPCIDR**. If you want to skip the DNS resolution, use `no-resolve` option for the RULE-SET entry.
+:::
+
+`RULE-SET,my-rule-provider,DIRECT` loads all rules from `my-rule-provider` and sends the matched packets to the `DIRECT` outbound.
+
+### SCRIPT
+
+::: info
+This feature is only available in the [Premium](/premium/introduction) edtion.
+:::
+
+SCRIPT rules are special rules that are used to route packets based on the result of a [script shortcut](/premium/script-shortcuts). When Clash encounters this rule, it evaluates the expression. If it returns `true`, the packet will be routed to the specified policy, otherwise the rule is skipped.
+
+::: warning
+When encountering this rule, Clash will resolve the domain name to an IP address. If you want to skip the DNS resolution, use `no-resolve` option.
+:::
+
+`SCRIPT,SHORTCUT-NAME,policy` routes any packets to `policy` if they have the shortcut evaluated `true`.
+
+### MATCH
+
+`MATCH,policy` routes the rest of the packets to `policy`. This rule is **required** and is usually used as the last rule.

docs/index.md

@@ -0,0 +1,38 @@
+<!-- This is the index page, linked by the dummy sidebar item at Introduction/_dummy-index.md -->
+# What is Clash?
+
+Welcome to the official knowledge base of the Clash core project ("Clash").
+
+Clash is a cross-platform rule-based proxy utility that runs on the network and application layer, supporting various proxy and anti-censorship protocols out-of-the-box.
+
+It has been adopted widely by the Internet users in some countries and regions where the Internet is heavily censored or blocked. Either way, Clash can be used by anyone who wants to improve their Internet experience.
+
+There are currently two editions of Clash:
+
+- [Clash](https://github.com/Dreamacro/clash): the open-source version released at [github.com/Dreamacro/clash](https://github.com/Dreamacro/clash)
+- [Clash Premium](https://github.com/Dreamacro/clash/releases/tag/premium): proprietary core with [TUN support and more](/premium/introduction) (free of charge)
+
+While this wiki covers both, however, the use of Clash could be challenging for the average users. Those might want to consider using a GUI client instead, and we do have some recommendations:
+
+- [Clash for Windows](https://github.com/Fndroid/clash_for_windows_pkg/releases) (Windows and macOS)
+- [Clash for Android](https://github.com/Kr328/ClashForAndroid)
+- [ClashX](https://github.com/yichengchen/clashX) or [ClashX Pro](https://install.appcenter.ms/users/clashx/apps/clashx-pro/distribution_groups/public) (macOS)
+
+## Feature Overview
+
+- Inbound: HTTP, HTTPS, SOCKS5 server, TUN device*
+- Outbound: Shadowsocks(R), VMess, Trojan, Snell, SOCKS5, HTTP(S), Wireguard*
+- Rule-based Routing: dynamic scripting, domain, IP addresses, process name and more*
+- Fake-IP DNS: minimises impact on DNS pollution and improves network performance
+- Transparent Proxy: Redirect TCP and TProxy TCP/UDP with automatic route table/rule management*
+- Proxy Groups: automatic fallback, load balancing or latency testing
+- Remote Providers: load remote proxy lists dynamically
+- RESTful API: update configuration in-place via a comprehensive API
+
+<!-- markdownlint-disable MD033 -->
+<small>\*: Only available in the free-of-charge Premium edition.</small>
+<!-- markdownlint-enable MD033 -->
+
+## License
+
+Clash is released under the [GPL-3.0](https://github.com/Dreamacro/clash/blob/master/LICENSE) open-source license. Prior to [v0.16.0](https://github.com/Dreamacro/clash/releases/tag/v0.16.0) or commit [e5284c](https://github.com/Dreamacro/clash/commit/e5284cf647717a8087a185d88d15a01096274bc2), it was licensed under the MIT license.

docs/introduction/_dummy-index.md

@@ -0,0 +1,6 @@
+---
+sidebarTitle: What is Clash?
+sidebarOrder: 1
+---
+
+<!-- This file is used as a dummy sidebar item that always links to / -->

docs/introduction/faq.md

@@ -0,0 +1,95 @@
+---
+sidebarTitle: Frequently Asked Questions
+sidebarOrder: 4
+---
+
+# Frequently Asked Questions
+
+Here we have some common questions people ask. If you have any questions not listed here, feel free to [open an issue](https://github.com/Dreamacro/clash/issues/new/choose).
+
+[[toc]]
+
+## What is the difference between amd64 and amd64-v3?
+
+Quoting from [golang/go](https://github.com/golang/go/wiki/MinimumRequirements#amd64):
+
+> Until Go 1.17, the Go compiler always generated x86 binaries that could be executed by any 64-bit x86 processor.
+> 
+> Go 1.18 introduced [4 architectural levels](https://en.wikipedia.org/wiki/X86-64#Microarchitecture_levels) for AMD64.
+> Each level differs in the set of x86 instructions that the compiler can include in the generated binaries:
+> 
+> * GOAMD64=v1 (default): The baseline. Exclusively generates instructions that all 64-bit x86 processors can execute.
+> * GOAMD64=v2: all v1 instructions, plus CMPXCHG16B, LAHF, SAHF, POPCNT, SSE3, SSE4.1, SSE4.2, SSSE3.
+> * GOAMD64=v3: all v2 instructions, plus AVX, AVX2, BMI1, BMI2, F16C, FMA, LZCNT, MOVBE, OSXSAVE.
+> * GOAMD64=v4: all v3 instructions, plus AVX512F, AVX512BW, AVX512CD, AVX512DQ, AVX512VL.
+> 
+> Setting, for example, GOAMD64=v3, will allow the Go compiler to use AVX2 instructions in the generated binaries (which may improve performance in some cases); but these binaries will not run on older x86 processors that don't support AVX2.
+> 
+> The Go toolchain may also generate newer instructions, but guarded by dynamic checks to ensure they're only executed on capable processors. For example, with GOAMD64=v1, [math/bits.OnesCount](https://pkg.go.dev/math/bits#OnesCount) will still use the [POPCNT](https://www.felixcloutier.com/x86/popcnt) instruction if [CPUID](https://www.felixcloutier.com/x86/cpuid) reports that it's available. Otherwise, it falls back to a generic implementation.
+> 
+> The Go toolchain does not currently generate any AVX512 instructions.
+> 
+> Note that *processor* is a simplification in this context. In practice, support from the entire system (firmware, hypervisor, kernel) is needed.
+
+## Which release should I use for my system?
+
+Here are some common systems that people use Clash on, and the recommended release for each of them:
+
+- NETGEAR WNDR3700v2: mips-hardfloat [#846](https://github.com/Dreamacro/clash/issues/846)
+- NETGEAR WNDR3800: mips-softfloat [#579](https://github.com/Dreamacro/clash/issues/579)
+- ASUS RT-AC5300: armv5 [#2356](https://github.com/Dreamacro/clash/issues/2356)
+- MediaTek MT7620A, MT7621A: mipsle-softfloat ([#136](https://github.com/Dreamacro/clash/issues/136))
+- mips_24kc: [#192](https://github.com/Dreamacro/clash/issues/192)
+
+If your device is not listed here, you can check the CPU architecture of your device with `uname -m` and find the corresponding release in the release page.
+
+## List of wontfix
+
+The official Clash core project will not implement/fix these things:
+
+- [Snell](https://github.com/Dreamacro/clash/issues/2466)
+- [Custom CA](https://github.com/Dreamacro/clash/issues/2333)
+- [VMess Mux](https://github.com/Dreamacro/clash/issues/450)
+- [VLess](https://github.com/Dreamacro/clash/issues/1185)
+- [KCP](https://github.com/Dreamacro/clash/issues/16)
+- [mKCP](https://github.com/Dreamacro/clash/issues/2308)
+- [TLS Encrypted Client Hello](https://github.com/Dreamacro/clash/issues/2295)
+- [TCP support for Clash DNS server](https://github.com/Dreamacro/clash/issues/368)
+- [MITM](https://github.com/Dreamacro/clash/issues/227#issuecomment-508693628)
+
+The following will be considered implementing when the official Go QUIC library releases.
+
+- [TUIC](https://github.com/Dreamacro/clash/issues/2222)
+- [Hysteria](https://github.com/Dreamacro/clash/issues/1863)
+
+## Proxies work on my local machine, but not on my router or in a container
+
+Your system might be out of sync in time. Refer to your platform documentations about time synchronisation - things will break if time is not in sync.
+
+## Time complexity of rule matching
+
+Refer to this discussion: [#422](https://github.com/Dreamacro/clash/issues/422)
+
+## Clash Premium unable to access Internet
+
+You can refer to these relevant discussions:
+
+- [#432](https://github.com/Dreamacro/clash/issues/432#issuecomment-571634905)
+- [#2480](https://github.com/Dreamacro/clash/issues/2480)
+
+## error: unsupported rule type RULE-SET
+
+If you stumbled on this error message:
+
+```txt
+FATA[0000] Parse config error: Rules[0] [RULE-SET,apple,REJECT] error: unsupported rule type RULE-SET
+```
+
+You're using Clash open-source edition. Rule Providers is currently only available in the [Premium core](https://github.com/Dreamacro/clash/releases/tag/premium). (it's free)
+
+## DNS Hijack does not work
+
+Since `tun.auto-route` does not intercept LAN traffic, if your system DNS is set to servers in private subnets, DNS hijack will not work. You can either:
+
+1. Use a non-private DNS server as your system DNS like `1.1.1.1`
+2. Or manually set up your system DNS to the Clash DNS (by default, `198.18.0.1`)

docs/introduction/getting-started.md

@@ -0,0 +1,50 @@
+---
+sidebarTitle: Getting Started
+sidebarOrder: 2
+---
+
+# Getting Started
+
+To get started with Clash, you can either build it from source or download pre-built binaries.
+
+## Using pre-built binaries
+
+You can download Clash core binaries here: [https://github.com/Dreamacro/clash/releases](https://github.com/Dreamacro/clash/releases)
+
+## Install from source
+
+You can build Clash on your own device with Golang 1.19+:
+
+```shell
+$ go install github.com/Dreamacro/clash@latest
+go: downloading github.com/Dreamacro/clash v1.15.1
+```
+
+The binary is built under `$GOPATH/bin`:
+
+```shell
+$ $GOPATH/bin/clash -v
+Clash unknown version darwin arm64 with go1.20.3 unknown time
+```
+
+## Build for a different arch/os
+
+Golang supports cross-compilation, so you can build for a device on a different architecture or operating system. You can use _make_ to build them easily - for example:
+
+```shell
+$ git clone --depth 1 https://github.com/Dreamacro/clash
+Cloning into 'clash'...
+remote: Enumerating objects: 359, done.
+remote: Counting objects: 100% (359/359), done.
+remote: Compressing objects: 100% (325/325), done.
+remote: Total 359 (delta 25), reused 232 (delta 17), pack-reused 0
+Receiving objects: 100% (359/359), 248.99 KiB | 1.63 MiB/s, done.
+Resolving deltas: 100% (25/25), done.
+$ cd clash && make darwin-arm64
+fatal: No names found, cannot describe anything.
+GOARCH=arm64 GOOS=darwin CGO_ENABLED=0 go build -trimpath -ldflags '-X "github.com/Dreamacro/clash/constant.Version=unknown version" -X "github.com/Dreamacro/clash/constant.BuildTime=Mon May  8 16:47:10 UTC 2023" -w -s -buildid=' -o bin/clash-darwin-arm64
+$ file bin/clash-darwin-arm64
+bin/clash-darwin-arm64: Mach-O 64-bit executable arm64
+```
+
+For other build targets, check out the [Makefile](https://github.com/Dreamacro/clash/blob/master/Makefile).

docs/introduction/service.md

@@ -0,0 +1,132 @@
+---
+sidebarTitle: Clash as a Service
+sidebarOrder: 3
+---
+
+# Clash as a Service
+
+While Clash is meant to be run in the background, there's currently no elegant way to implement daemons with Golang, hence we recommend you to daemonize Clash with third-party tools.
+
+## systemd
+
+Copy Clash binary to `/usr/local/bin` and configuration files to `/etc/clash`:
+
+```shell
+cp clash /usr/local/bin
+cp config.yaml /etc/clash/
+cp Country.mmdb /etc/clash/
+```
+
+Create the systemd configuration file at `/etc/systemd/system/clash.service`:
+
+```ini
+[Unit]
+Description=Clash daemon, A rule-based proxy in Go.
+After=network-online.target
+
+[Service]
+Type=simple
+Restart=always
+ExecStart=/usr/local/bin/clash -d /etc/clash
+
+[Install]
+WantedBy=multi-user.target
+```
+
+After that you're supposed to reload systemd:
+
+```shell
+systemctl daemon-reload
+```
+
+Launch clashd on system startup with:
+
+```shell
+systemctl enable clash
+```
+
+Launch clashd immediately with:
+
+```shell
+systemctl start clash
+```
+
+Check the health and logs of Clash with:
+
+```shell
+systemctl status clash
+journalctl -xe
+```
+
+Credits to [ktechmidas](https://github.com/ktechmidas) for this guide. ([#754](https://github.com/Dreamacro/clash/issues/754))
+
+## Docker
+
+We provide pre-built images of Clash and Clash Premium. Therefore you can deploy Clash with [Docker Compose](https://docs.docker.com/compose/) if you're on Linux. However, you should be advised that it's [not recommended](https://github.com/Dreamacro/clash/issues/2249#issuecomment-1203494599) to run **Clash Premium** in a container.
+
+::: warning
+This setup will not work on macOS systems due to the lack of [host networking and TUN support](https://github.com/Dreamacro/clash/issues/770#issuecomment-650951876) in Docker for Mac.
+:::
+
+
+::: code-group
+
+```yaml [Clash]
+services:
+  clash:
+    image: ghcr.io/dreamacro/clash
+    restart: always
+    volumes:
+      - ./config.yaml:/root/.config/clash/config.yaml:ro
+      # - ./ui:/ui:ro # dashboard volume
+    ports:
+      - "7890:7890"
+      - "7891:7891"
+      # - "8080:8080" # The External Controller (RESTful API)
+    network_mode: "bridge"
+```
+
+```yaml [Clash Premium]
+services:
+  clash:
+    image: ghcr.io/dreamacro/clash-premium
+    restart: always
+    volumes:
+      - ./config.yaml:/root/.config/clash/config.yaml:ro
+      # - ./ui:/ui:ro # dashboard volume
+    ports:
+      - "7890:7890"
+      - "7891:7891"
+      # - "8080:8080" # The External Controller (RESTful API)
+    cap_add:
+      - NET_ADMIN
+    devices:
+      - /dev/net/tun
+    network_mode: "host"
+```
+
+:::
+
+Save as `docker-compose.yaml` and place your `config.yaml` in the same directory.
+
+::: tip
+Before proceeding, refer to your platform documentations about time synchronisation - things will break if time is not in sync.
+:::
+
+When you're ready, run the following commands to bring up Clash:
+
+```shell
+docker-compose up -d
+```
+
+You can view the logs with:
+
+```shell
+docker-compose logs
+```
+
+Stop Clash with:
+
+```shell
+docker-compose stop
+```

docs/package.json

@@ -0,0 +1,13 @@
+{
+  "scripts": {
+    "docs:dev": "vitepress dev",
+    "docs:build": "vitepress build",
+    "docs:preview": "vitepress preview"
+  },
+  "devDependencies": {
+    "@types/node": "^20.3.2",
+    "directory-tree": "^3.5.1",
+    "markdown-yaml-metadata-parser": "^3.0.0",
+    "vitepress": "1.0.0-beta.3"
+  }
+}

docs/premium/ebpf.md

@@ -0,0 +1,26 @@
+---
+sidebarTitle: "Feature: eBPF Redirect to TUN"
+sidebarOrder: 3
+---
+
+# eBPF Redirect to TUN
+
+eBPF redirect to TUN is a feature that intercepts all network traffic on a specific network interface and redirects it to the TUN interface. [Support from your kernel](https://github.com/iovisor/bcc/blob/master/INSTALL.md#kernel-configuration) is required.
+
+::: warning
+This feature conflicts with `tun.auto-route`.
+:::
+
+While it usually brings better performance compared to `tun.auto-redir` and `tun.auto-route`, it's less tested compared to `auto-route`. Therefore, you should proceed with caution.
+
+## Configuration
+
+```yaml
+ebpf:
+  redirect-to-tun:
+    - eth0
+```
+
+## Known Issues
+
+- This feature breaks Tailscaled, so you should use `tun.auto-route` instead.

docs/premium/experimental-features.md

@@ -0,0 +1,19 @@
+---
+sidebarTitle: Experimental Features
+sidebarOrder: 9
+---
+
+# Experimental Features
+
+Occasionally we make new features that would require a fair amount of testing before having it in the main release. These features are marked as experimental and are disabled by default.
+
+::: warning
+Some features listed here can be unstable, and might get removed in any future version - we do not recommend using them unless you have a specific reason to do so.
+:::
+
+## Sniff TLS SNI
+
+```yaml
+experimental:
+  sniff-tls-sni: true
+```

docs/premium/introduction.md

@@ -0,0 +1,26 @@
+---
+sidebarTitle: Introduction
+sidebarOrder: 1
+---
+
+# Introduction
+
+In the past, there was only one open-source version of Clash, until some [improper uses and redistributions](https://github.com/Dreamacro/clash/issues/541#issuecomment-672029110) of Clash arose. From that, we decided to fork Clash and develop the more advanced features in a private GitHub repository.
+
+Don't worry just yet - the Premium core will stay free of charge, and the security is enforced with peer reviews from multiple credible developers.
+
+## What's the difference?
+
+The Premium core is a fork of the open-source Clash core with the addition of the following features:
+
+- [TUN Device](/premium/tun-device) with the support of `auto-redir` and `auto-route`
+- [eBPF Redirect to TUN](/premium/ebpf)
+- [Rule Providers](/premium/rule-providers)
+- [Script](/premium/script)
+- [Script Shortcuts](/premium/script-shortcuts)
+- [Userspace Wireguard](/premium/userspace-wireguard)
+- [The Profiling Engine](/premium/the-profiling-engine)
+
+## Obtaining a Copy
+
+You can download the latest Clash Premium binaries from [GitHub Releases](https://github.com/Dreamacro/clash/releases/tag/premium).

docs/premium/rule-providers.md

@@ -0,0 +1,100 @@
+---
+sidebarTitle: "Feature: Rule Providers"
+sidebarOrder: 4
+---
+
+# Rule Providers
+
+Rule Providers are pretty much the same compared to Proxy Providers. It enables users to load rules from external sources and overall cleaner configuration. This feature is currently Premium core only.
+
+To define a Rule Provider, add the `rule-providers` field to the main configuration:
+
+```yaml
+rule-providers:
+  apple:
+    behavior: "domain" # domain, ipcidr or classical (premium core only)
+    type: http
+    url: "url"
+    # format: 'yaml' # or 'text'
+    interval: 3600
+    path: ./apple.yaml
+  microsoft:
+    behavior: "domain"
+    type: file
+    path: /microsoft.yaml
+
+rules:
+  - RULE-SET,apple,REJECT
+  - RULE-SET,microsoft,policy
+```
+
+There are three behavior types available:
+
+## `domain`
+
+yaml:
+
+```yaml
+payload:
+  - '.blogger.com'
+  - '*.*.microsoft.com'
+  - 'books.itunes.apple.com'
+```
+
+text:
+
+```txt
+# comment
+.blogger.com
+*.*.microsoft.com
+books.itunes.apple.com
+```
+
+## `ipcidr`
+
+yaml
+
+```yaml
+payload:
+  - '192.168.1.0/24'
+  - '10.0.0.0.1/32'
+```
+
+text:
+
+```txt
+# comment
+192.168.1.0/24
+10.0.0.0.1/32
+```
+
+## `classical`
+
+yaml:
+
+```yaml
+payload:
+  - DOMAIN-SUFFIX,google.com
+  - DOMAIN-KEYWORD,google
+  - DOMAIN,ad.com
+  - SRC-IP-CIDR,192.168.1.201/32
+  - IP-CIDR,127.0.0.0/8
+  - GEOIP,CN
+  - DST-PORT,80
+  - SRC-PORT,7777
+  # MATCH is not necessary here
+```
+
+text:
+
+```txt
+# comment
+DOMAIN-SUFFIX,google.com
+DOMAIN-KEYWORD,google
+DOMAIN,ad.com
+SRC-IP-CIDR,192.168.1.201/32
+IP-CIDR,127.0.0.0/8
+GEOIP,CN
+DST-PORT,80
+SRC-PORT,7777
+```

docs/premium/script-shortcuts.md

@@ -0,0 +1,59 @@
+---
+sidebarTitle: "Feature: Script Shortcuts"
+sidebarOrder: 6
+---
+
+# Script Shortcuts
+
+Clash Premium implements the Scripting feature powered by Python3, enableing users to programmatically select policies for the packets with dynamic flexibility.
+
+You can either controll the entire rule-matching engine with a single Python script, or define a number of shortcuts and use them in companion with the regular rules. This page refers to the latter feature. For the former, see [Script](./script.md).
+
+This feature enables the use of script in `rules` mode. By default, DNS resolution takes place for SCRIPT rules. `no-resolve` can be appended to the rule to prevent the resolution. (i.e.: `SCRIPT,quic,DIRECT,no-resolve`)
+
+```yaml
+mode: Rule
+
+script:
+  engine: expr # or starlark (10x to 20x slower)
+  shortcuts:
+    quic: network == 'udp' and dst_port == 443
+    curl: resolve_process_name() == 'curl'
+    # curl: resolve_process_path() == '/usr/bin/curl'
+
+rules:
+  - SCRIPT,quic,REJECT
+```
+
+## Evaluation Engines
+
+[Expr](https://expr.medv.io/) is used as the default engine for Script Shortcuts, offering 10x to 20x performance boost compared to Starlark.
+
+[Starlark](https://github.com/google/starlark-go) is a Python-like langauge for configuration purposes, you can also use it for Script Shortcuts.
+
+## Variables
+
+- network: string
+- type: string
+- src_ip: string
+- dst_ip: string
+- src_port: uint16
+- dst_port: uint16
+- host: string
+- process_path: string
+
+::: warning
+Starlark is missing `process_path` variable for now.
+:::
+
+## Functions
+
+```ts
+type resolve_ip = (host: string) => string // ip string
+type in_cidr = (ip: string, cidr: string) => boolean // ip in cidr
+type in_ipset = (name: string, ip: string) => boolean // ip in ipset
+type geoip = (ip: string) => string // country code
+type match_provider = (name: string) => boolean // in rule provider
+type resolve_process_name = () => string // find process name (curl .e.g)
+type resolve_process_path = () => string // find process path (/usr/bin/curl .e.g)
+```

docs/premium/script.md

@@ -0,0 +1,70 @@
+---
+sidebarTitle: "Feature: Script"
+sidebarOrder: 5
+---
+
+# Script
+
+Clash Premium implements the Scripting feature powered by Python3, enableing users to programmatically select policies for the packets with dynamic flexibility.
+
+You can either controll the entire rule-matching engine with a single Python script, or define a number of shortcuts and use them in companion with the regular rules. This page refers to the first feature, for the latter, see [Script Shortcuts](./script-shortcuts.md).
+
+## Scripting the entire rule-matching engine
+
+```yaml
+mode: Script
+
+# https://lancellc.gitbook.io/clash/clash-config-file/script
+script:
+  code: |
+    def main(ctx, metadata):
+      ip = metadata["dst_ip"] = ctx.resolve_ip(metadata["host"])
+      if ip == "":
+        return "DIRECT"
+
+      code = ctx.geoip(ip)
+      if code == "LAN" or code == "CN":
+        return "DIRECT"
+
+      return "Proxy" # default policy for requests which are not matched by any other script
+```
+
+If you want to use ip rules (i.e.: IP-CIDR, GEOIP, etc), you will first need to manually resolve IP addresses and assign them to metadata:
+
+```python
+def main(ctx, metadata):
+    # ctx.rule_providers["geoip"].match(metadata) return false
+
+    ip = ctx.resolve_ip(metadata["host"])
+    if ip == "":
+        return "DIRECT"
+    metadata["dst_ip"] = ip
+
+    # ctx.rule_providers["iprule"].match(metadata) return true
+
+    return "Proxy"
+```
+
+Interface definition for Metadata and Context:
+
+```ts
+interface Metadata {
+  type: string // socks5、http
+  network: string // tcp
+  host: string
+  src_ip: string
+  src_port: string
+  dst_ip: string
+  dst_port: string
+}
+
+interface Context {
+  resolve_ip: (host: string) => string // ip string
+  resolve_process_name: (metadata: Metadata) => string
+  resolve_process_path: (metadata: Metadata) => string
+  geoip: (ip: string) => string // country code
+  log: (log: string) => void
+  proxy_providers: Record<string, Array<{ name: string, alive: boolean, delay: number }>>
+  rule_providers: Record<string, { match: (metadata: Metadata) => boolean }>
+}
+```

docs/premium/the-profiling-engine.md

@@ -0,0 +1,13 @@
+---
+sidebarTitle: "Feature: The Profiling Engine"
+sidebarOrder: 8
+---
+
+# The Profiling Engine
+
+https://github.com/Dreamacro/clash-tracing
+
+```yaml
+profile:
+    tracing: true
+```

docs/premium/tun-device.md

@@ -0,0 +1,65 @@
+---
+sidebarTitle: "Feature: TUN Device"
+sidebarOrder: 2
+---
+
+# TUN Device
+
+The Premium core has out-of-the-box support of TUN device. Being a Network layer device, it can be used to handle TCP, UDP, ICMP traffic. It has been extensively tested and used in production environments - you can even play competitive games with it.
+
+One of the biggest advantage of using Clash TUN is the built-in support of the *automagic* management of the route table, routing rules and nftable. You can enable it with the options `tun.auto-route` and `tun.auto-redir`. It's a drop-in replacement of the ancient configuration option `redir-port` (TCP) for the sake of easier configuration and better stability.
+
+::: tip
+`tun.auto-route` and `tun.auto-redir` are only available on macOS, Windows, Linux and Android, and only receives IPv4 traffic.
+:::
+
+There are two options of TCP/IP stack available: `system` or `gvisor`. In order to get the best performance available, we recommend that you always use `system` stack unless you have a specific reason or compatibility issue to use `gvisor`. If that's the case, do not hesitate to [submit an issue](https://github.com/Dreamacro/clash/issues/new/choose).
+
+## Technical Limitations
+
+* For Android, the control device is at `/dev/tun` instead of `/dev/net/tun`, you will need to create a symbolic link first (i.e. `ln -sf /dev/tun /dev/net/tun`)
+
+* DNS hijacking might result in a failure, if the system DNS is at a private IP address (since `auto-route` does not capture private network traffic).
+
+## Linux, macOS or Android
+
+This is an example configuration of the TUN feature:
+
+```yaml
+interface-name: en0 # conflict with `tun.auto-detect-interface`
+
+tun:
+  enable: true
+  stack: system # or gvisor
+  # dns-hijack:
+  #   - 8.8.8.8:53
+  #   - tcp://8.8.8.8:53
+  #   - any:53
+  #   - tcp://any:53
+  auto-route: true # manage `ip route` and `ip rules`
+  auto-redir: true # manage nftable REDIRECT
+  auto-detect-interface: true # conflict with `interface-name`
+```
+
+Be advised, since the use of TUN device and manipulation of system route/nft settings, Clash will need superuser privileges to run.
+
+```shell
+sudo ./clash
+```
+
+If your device already has some TUN device, Clash TUN might not work - you will have to check the route table and routing rules manually. In this case, `fake-ip-filter` may helpful as well.
+
+## Windows
+
+You will need to visit the [WinTUN website](https://www.wintun.net) and download the latest release. After that, copy `wintun.dll` into Clash home directory. Example configuration:
+
+```yaml
+tun:
+  enable: true
+  stack: gvisor # or system
+  dns-hijack:
+    - 198.18.0.2:53 # when `fake-ip-range` is 198.18.0.1/16, should hijack 198.18.0.2:53
+  auto-route: true # auto set global route for Windows
+  # It is recommended to use `interface-name`
+  auto-detect-interface: true # auto detect interface, conflict with `interface-name`
+```

docs/premium/userspace-wireguard.md

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+---
+sidebarTitle: "Feature: Userspace Wireguard"
+sidebarOrder: 7
+---
+
+# Userspace Wireguard
+
+Due to the dependency on gvisor TCP/IP stack, Wireguard outbound is currently only available in the Premium core.
+
+```yaml
+proxies:
+  - name: "wg"
+    type: wireguard
+    server: 127.0.0.1
+    port: 443
+    ip: 172.16.0.2
+    # ipv6: your_ipv6
+    private-key: eCtXsJZ27+4PbhDkHnB923tkUn2Gj59wZw5wFA75MnU=
+    public-key: Cr8hWlKvtDt7nrvf+f0brNQQzabAqrjfBvas9pmowjo=
+    # preshared-key: base64
+    # remote-dns-resolve: true # remote resolve DNS with `dns` field, default is true
+    # dns: [1.1.1.1, 8.8.8.8]
+    # mtu: 1420
+    udp: true
+```

docs/public/logo.png

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+../logo.png