Fix Vision read

close https://github.com/MetaCubeX/Clash.Meta/issues/391

.github/release.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+FILENAMES=$(ls)
+for FILENAME in $FILENAMES
+do
+    if [[ ! ($FILENAME =~ ".exe" || $FILENAME =~ ".sh")]];then
+        gzip -S ".gz" $FILENAME
+    elif [[ $FILENAME =~ ".exe" ]];then
+        zip -m ${FILENAME%.*}.zip $FILENAME
+    else echo "skip $FILENAME"
+    fi
+done
+
+FILENAMES=$(ls)
+for FILENAME in $FILENAMES
+do
+    if [[ $FILENAME =~ ".zip" ]];then
+        echo "rename $FILENAME"
+        mv $FILENAME ${FILENAME%.*}-${VERSION}.zip
+    elif [[ $FILENAME =~ ".gz" ]];then
+        echo "rename $FILENAME"
+        mv $FILENAME ${FILENAME%.*}-${VERSION}.gz
+    else
+        echo "skip $FILENAME"
+    fi
+done

.github/rename-cgo.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+FILENAMES=$(ls)
+for FILENAME in $FILENAMES
+do
+    if [[ $FILENAME =~ "darwin-10.16-arm64" ]];then
+        echo "rename darwin-10.16-arm64 $FILENAME"
+        mv $FILENAME clash.meta-darwin-arm64-cgo
+    elif [[ $FILENAME =~ "darwin-10.16-amd64" ]];then
+        echo "rename darwin-10.16-amd64 $FILENAME"
+        mv $FILENAME clash.meta-darwin-amd64-cgo
+    elif [[ $FILENAME =~ "windows-4.0-386" ]];then
+        echo "rename windows 386 $FILENAME"
+        mv $FILENAME clash.meta-windows-386-cgo.exe
+    elif [[ $FILENAME =~ "windows-4.0-amd64" ]];then
+        echo "rename windows amd64 $FILENAME"
+        mv $FILENAME clash.meta-windows-amd64-cgo.exe
+    elif [[ $FILENAME =~ "linux" ]];then
+        echo "rename linux $FILENAME"
+        mv $FILENAME $FILENAME-cgo
+    elif [[ $FILENAME =~ "android" ]];then
+        echo "rename android $FILENAME"
+        mv $FILENAME $FILENAME-cgo
+    else echo "skip $FILENAME"
+    fi
+done

.github/workflows/alpha.yml

@@ -1,71 +0,0 @@
-name: Alpha
-on: [push]
-jobs:
-  Feature-build:
-    if: ${{ !contains(github.event.head_commit.message, '[Skip CI]') }}
-    runs-on: ubuntu-latest
-    steps:
-      - name: Get latest go version
-        id: version
-        run: |
-          echo ::set-output name=go_version::$(curl -s https://raw.githubusercontent.com/actions/go-versions/main/versions-manifest.json | grep -oE '"version": "[0-9]{1}.[0-9]{1,}(.[0-9]{1,})?"' | head -1 | cut -d':' -f2 | sed 's/ //g; s/"//g')
-      - name: Setup Go
-        uses: actions/setup-go@v2
-        with:
-          go-version: ${{ steps.version.outputs.go_version }}
-
-      - name: Check out code into the Go module directory
-        uses: actions/checkout@v3
-
-      - name: Cache go module
-        uses: actions/cache@v2
-        with:
-          path: ~/go/pkg/mod
-          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
-          restore-keys: |
-            ${{ runner.os }}-go-
-      #      - name: Get dependencies, run test
-      #        run: |
-      #          go test ./...
-      - name: Build
-        if: success()
-        env:
-          NAME: Clash.Meta
-          BINDIR: bin
-        run: make -j releases
-
-      - name: Delete current release assets
-        uses: andreaswilli/delete-release-assets-action@v2.0.0
-        with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-          tag: alpha
-          deleteOnlyFromDrafts: false
-
-      - name: Tag Repo
-        uses: richardsimko/update-tag@v1
-        with:
-          tag_name: alpha
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Upload Alpha
-        uses: softprops/action-gh-release@v1
-        if: ${{ env.GIT_BRANCH != 'Meta' && success() }}
-        with:
-          tag: ${{ github.ref }}
-          tag_name: alpha
-          files: bin/*
-          prerelease: true
-
-      - name: send telegram message on push
-        uses: appleboy/telegram-action@master
-        with:
-          to: ${{ secrets.TTELEGRAM_CHAT_ID }}
-          token: ${{ secrets.TELEGRAM_TOKEN }}
-          message: |
-            ${{ github.actor }} created commit:
-            Commit message: ${{ github.event.commits[0].message }}
-
-            Repository: ${{ github.repository }}
-
-            See changes: https://github.com/${{ github.repository }}/commit/${{github.sha}}

.github/workflows/build.yaml

@@ -1,20 +0,0 @@
-name: Build All
-on:
-  workflow_dispatch:
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Set up Go
-        uses: actions/setup-go@v1
-        with:
-          go-version: 1.18
-      - name: Check out code
-        uses: actions/checkout@v1
-      - name: Build
-        run: make all
-      - name: Release
-        uses: softprops/action-gh-release@v1
-        with:
-          files: bin/*
-          draft: true

.github/workflows/build.yml

@@ -0,0 +1,325 @@
+name: Build
+on:
+  workflow_dispatch:
+  push:
+    paths-ignore:
+      - "docs/**"
+      - "README.md"
+    branches:
+      - Alpha
+      - Beta
+      - Meta
+    tags:
+      - "v*"
+  pull_request_target:
+    branches:
+      - Alpha
+      - Beta
+      - Meta
+env:
+  REGISTRY: docker.io
+jobs:
+  Build:
+    permissions: write-all
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        job:
+          - {
+              type: "WithoutCGO",
+              target: "linux-amd64 linux-amd64-compatible",
+              id: "1",
+            }
+          - {
+              type: "WithoutCGO",
+              target: "linux-armv5 linux-armv6 linux-armv7",
+              id: "2",
+            }
+          - {
+              type: "WithoutCGO",
+              target: "linux-arm64 linux-mips64 linux-mips64le",
+              id: "3",
+            }
+          - {
+              type: "WithoutCGO",
+              target: "linux-mips-softfloat linux-mips-hardfloat linux-mipsle-softfloat linux-mipsle-hardfloat",
+              id: "4",
+            }
+          - {
+              type: "WithoutCGO",
+              target: "freebsd-386 freebsd-amd64 freebsd-arm64",
+              id: "5",
+            }
+          - {
+              type: "WithoutCGO",
+              target: "windows-amd64-compatible windows-amd64 windows-386",
+              id: "6",
+            }
+          - {
+              type: "WithoutCGO",
+              target: "windows-arm64 windows-arm32v7",
+              id: "7",
+            }
+          - {
+              type: "WithoutCGO",
+              target: "darwin-amd64 darwin-arm64 android-arm64",
+              id: "8",
+            }
+          - { type: "WithCGO", target: "windows/*", id: "1" }
+          - { type: "WithCGO", target: "linux/386", id: "2" }
+          - { type: "WithCGO", target: "linux/amd64", id: "3" }
+          - { type: "WithCGO", target: "linux/arm64,linux/riscv64", id: "4" }
+          - { type: "WithCGO", target: "linux/arm,", id: "5" }
+          - { type: "WithCGO", target: "linux/arm-6,linux/arm-7", id: "6" }
+          - { type: "WithCGO", target: "linux/mips,linux/mipsle", id: "7" }
+          - { type: "WithCGO", target: "linux/mips64", id: "8" }
+          - { type: "WithCGO", target: "linux/mips64le", id: "9" }
+          - { type: "WithCGO", target: "darwin-10.16/*", id: "10" }
+          - { type: "WithCGO", target: "android", id: "11" }
+
+    steps:
+      - name: Check out code into the Go module directory
+        uses: actions/checkout@v3
+
+      - name: Set variables
+        run: echo "VERSION=$(git rev-parse --short HEAD)" >> $GITHUB_ENV
+        shell: bash
+
+      - name: Set variables
+        if: ${{github.ref_name=='Alpha'}}
+        run: echo "VERSION=alpha-$(git rev-parse --short HEAD)" >> $GITHUB_ENV
+        shell: bash
+
+      - name: Set variables
+        if: ${{github.ref_name=='Beta'}}
+        run: echo "VERSION=beta-$(git rev-parse --short HEAD)" >> $GITHUB_ENV
+        shell: bash
+
+      - name: Set variables
+        if: ${{github.ref_name=='Meta'}}
+        run: echo "VERSION=meta-$(git rev-parse --short HEAD)" >> $GITHUB_ENV
+        shell: bash
+
+      - name: Set variables
+        if: ${{github.ref_name=='' || github.ref_type=='tag'}}
+        run: echo "VERSION=$(git describe --tags)" >> $GITHUB_ENV
+        shell: bash
+
+      - name: Set ENV
+        run: |
+          echo "NAME=clash.meta" >> $GITHUB_ENV
+          echo "REPO=${{ github.repository }}" >> $GITHUB_ENV
+          echo "ShortSHA=$(git rev-parse --short ${{ github.sha }})" >> $GITHUB_ENV
+          echo "BUILDTIME=$(date -u)" >> $GITHUB_ENV
+          echo "BRANCH=$(git rev-parse --abbrev-ref HEAD)" >> $GITHUB_ENV
+        shell: bash
+
+      - name: Set ENV
+        run: |
+          echo "TAGS=with_gvisor,with_lwip" >> $GITHUB_ENV
+          echo "LDFLAGS=-X 'github.com/Dreamacro/clash/constant.Version=${VERSION}' -X 'github.com/Dreamacro/clash/constant.BuildTime=${BUILDTIME}' -w -s -buildid=" >> $GITHUB_ENV
+        shell: bash
+
+      - name: Setup Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: "1.20"
+          check-latest: true
+
+      - name: Test
+        if: ${{ matrix.job.id=='1' && matrix.job.type=='WithoutCGO' }}
+        run: |
+          go test ./...
+
+      - name: Build WithoutCGO
+        if: ${{ matrix.job.type=='WithoutCGO' }}
+        env:
+          NAME: Clash.Meta
+          BINDIR: bin
+        run: make -j$(($(nproc) + 1)) ${{ matrix.job.target }}
+
+      - uses: nttld/setup-ndk@v1
+        if: ${{ matrix.job.type=='WithCGO' && matrix.job.target=='android' }}
+        id: setup-ndk
+        with:
+          ndk-version: r25b
+          add-to-path: false
+          local-cache: true
+
+      - name: Build Android
+        if: ${{ matrix.job.type=='WithCGO' && matrix.job.target=='android' }}
+        env:
+          ANDROID_NDK_HOME: ${{ steps.setup-ndk.outputs.ndk-path }}
+        run: |
+          mkdir bin
+          CC=${ANDROID_NDK_HOME}/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android33-clang
+          CGO_ENABLED=1 CC=${CC} GOARCH=arm64 GOOS=android go build -tags ${TAGS} -trimpath -ldflags "${LDFLAGS}" -o bin/${NAME}-android-arm64
+
+      - name: Set up xgo
+        if: ${{ matrix.job.type=='WithCGO' && matrix.job.target!='android' }}
+        run: |
+          docker pull techknowlogick/xgo:latest
+          go install src.techknowlogick.com/xgo@latest
+
+      - name: Build by xgo
+        if: ${{ matrix.job.type=='WithCGO' && matrix.job.target!='android' }}
+        env:
+          ANDROID_NDK_HOME: ${{ steps.setup-ndk.outputs.ndk-path }}
+        run: |
+          mkdir bin
+          xgo --targets="${{ matrix.job.target }}" --tags="${TAGS}" -ldflags="${LDFLAGS}" --out bin/${NAME} ./
+
+      - name: Rename
+        if: ${{ matrix.job.type=='WithCGO' }}
+        run: |
+          cd bin
+          ls -la
+          cp ../.github/rename-cgo.sh ./
+          bash ./rename-cgo.sh
+          rm ./rename-cgo.sh
+          ls -la
+          cd ..
+
+      - name: Zip
+        if: ${{  success() }}
+        run: |
+          cd bin
+          ls -la
+          chmod +x *
+          cp ../.github/release.sh ./
+          bash ./release.sh
+          rm ./release.sh
+          ls -la
+          cd ..
+
+      - uses: actions/upload-artifact@v3
+        if: ${{  success() }}
+        with:
+          name: artifact
+          path: bin/
+
+  Upload-Prerelease:
+    permissions: write-all
+    if: ${{ github.ref_type=='branch' }}
+    needs: [ Build ]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/download-artifact@v3
+        with:
+          name: artifact
+          path: bin/
+
+      - name: Display structure of downloaded files
+        run: ls -R
+        working-directory: bin
+
+      - name: Delete current release assets
+        uses: andreaswilli/delete-release-assets-action@v2.0.0
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          tag: Prerelease-${{ github.ref_name }}
+          deleteOnlyFromDrafts: false
+
+      - name: Tag Repo
+        uses: richardsimko/update-tag@v1.0.6
+        with:
+          tag_name: Prerelease-${{ github.ref_name }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Upload Prerelease
+        uses: softprops/action-gh-release@v1
+        if: ${{  success() }}
+        with:
+          tag: ${{ github.ref_name }}
+          tag_name: Prerelease-${{ github.ref_name }}
+          files: bin/*
+          prerelease: true
+          generate_release_notes: true
+
+  Upload-Release:
+    permissions: write-all
+    if: ${{ github.ref_type=='tag' }}
+    needs: [ Build ]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/download-artifact@v3
+        with:
+          name: artifact
+          path: bin/
+
+      - name: Display structure of downloaded files
+        run: ls -R
+        working-directory: bin
+
+      - name: Upload Release
+        uses: softprops/action-gh-release@v1
+        if: ${{  success() }}
+        with:
+          tag: ${{ github.ref_name }}
+          tag_name: ${{ github.ref_name }}
+          files: bin/*
+          generate_release_notes: true
+
+  Docker:
+    permissions: write-all
+    needs: [ Build ]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - uses: actions/download-artifact@v3
+        with:
+          name: artifact
+          path: bin/
+
+      - name: Display structure of downloaded files
+        run: ls -R
+        working-directory: bin
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+
+      - name: Setup Docker buildx
+        uses: docker/setup-buildx-action@v1
+        with:
+          version: latest
+
+      # Extract metadata (tags, labels) for Docker
+      # https://github.com/docker/metadata-action
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/metadata-action@v3
+        with:
+          images: ${{ env.REGISTRY }}/${{ secrets.DOCKERHUB_ACCOUNT }}/${{secrets.DOCKERHUB_REPO}}
+      - name: Show files
+        run: |
+          ls .
+          ls bin/
+      - name: Log into registry
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v1
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ secrets.DOCKER_HUB_USER }}
+          password: ${{ secrets.DOCKER_HUB_TOKEN }}
+
+      # Build and push Docker image with Buildx (don't push on PR)
+      # https://github.com/docker/build-push-action
+      - name: Build and push Docker image
+        id: build-and-push
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          file: ./Dockerfile
+          push: ${{ github.event_name != 'pull_request' }}
+          platforms: |
+            linux/386
+            linux/amd64
+            linux/arm64/v8
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

.gitignore

@@ -24,4 +24,5 @@ vendor
 # test suite
 test/config/cache*
 /output
-/.vscode
+.vscode/
+.fleet/

.golangci.yaml

@@ -8,9 +8,10 @@ linters:
 
 linters-settings:
   gci:
+    custom-order: true
     sections:
       - standard
       - prefix(github.com/Dreamacro/clash)
       - default
   staticcheck:
-    go: '1.18'
+    go: '1.19'

Dockerfile

@@ -1,18 +1,25 @@
-FROM golang:alpine as builder
+FROM alpine:latest as builder
 
-RUN apk add --no-cache make git && \
+RUN apk add --no-cache gzip && \
-    wget -O /Country.mmdb https://github.com/Dreamacro/maxmind-geoip/releases/latest/download/Country.mmdb
+    mkdir /clash-config && \
-WORKDIR /clash-src
+    wget -O /clash-config/Country.mmdb https://raw.githubusercontent.com/Loyalsoldier/geoip/release/Country.mmdb && \
-COPY --from=tonistiigi/xx:golang / /
+    wget -O /clash-config/geosite.dat https://github.com/Loyalsoldier/v2ray-rules-dat/releases/latest/download/geosite.dat && \
-COPY . /clash-src
+    wget -O /clash-config/geoip.dat https://github.com/Loyalsoldier/v2ray-rules-dat/releases/latest/download/geoip.dat
-RUN go mod download && \
-    make docker && \
-    mv ./bin/clash-docker /clash
 
+COPY docker/file-name.sh /clash/file-name.sh
+WORKDIR /clash
+COPY bin/ bin/
+RUN FILE_NAME=`sh file-name.sh` && echo $FILE_NAME && \
+    FILE_NAME=`ls bin/ | egrep "$FILE_NAME.*"|awk NR==1` && \
+    mv bin/$FILE_NAME clash.gz && gzip -d clash.gz && echo "$FILE_NAME" > /clash-config/test
 FROM alpine:latest
-LABEL org.opencontainers.image.source="https://github.com/Dreamacro/clash"
+LABEL org.opencontainers.image.source="https://github.com/MetaCubeX/Clash.Meta"
 
-RUN apk add --no-cache ca-certificates tzdata
+RUN apk add --no-cache ca-certificates tzdata iptables
-COPY --from=builder /Country.mmdb /root/.config/clash/
+
-COPY --from=builder /clash /
+VOLUME ["/root/.config/clash/"]
-ENTRYPOINT ["/clash"]
+
+COPY --from=builder /clash-config/ /root/.config/clash/
+COPY --from=builder /clash/clash /clash
+RUN chmod +x /clash
+ENTRYPOINT [ "/clash" ]

Makefile

@@ -1,20 +1,26 @@
-NAME=Clash.Meta
+NAME=clash.meta
 BINDIR=bin
-BRANCH=$(shell git rev-parse --abbrev-ref HEAD)
+BRANCH=$(shell git branch --show-current)
+ifeq ($(BRANCH),Alpha)
 VERSION=alpha-$(shell git rev-parse --short HEAD)
+else ifeq ($(BRANCH),Beta)
+VERSION=beta-$(shell git rev-parse --short HEAD)
+else ifeq ($(BRANCH),)
+VERSION=$(shell git describe --tags)
+else
+VERSION=$(shell git rev-parse --short HEAD)
+endif
+
 BUILDTIME=$(shell date -u)
-GOBUILD=CGO_ENABLED=0 go build -trimpath -ldflags '-X "github.com/Dreamacro/clash/constant.Version=$(VERSION)" \
+GOBUILD=CGO_ENABLED=0 go build -tags with_gvisor -trimpath -ldflags '-X "github.com/Dreamacro/clash/constant.Version=$(VERSION)" \
 		-X "github.com/Dreamacro/clash/constant.BuildTime=$(BUILDTIME)" \
 		-w -s -buildid='
 
 PLATFORM_LIST = \
-	darwin-amd64v1 \
+	darwin-amd64 \
-	darwin-amd64v2 \
-	darwin-amd64v3 \
 	darwin-arm64 \
-	linux-amd64v1 \
+	linux-amd64-compatible \
-	linux-amd64v2 \
+	linux-amd64 \
-	linux-amd64v3 \
 	linux-armv5 \
 	linux-armv6 \
 	linux-armv7 \
@@ -32,9 +38,8 @@ PLATFORM_LIST = \
 
 WINDOWS_ARCH_LIST = \
 	windows-386 \
-	windows-amd64v1 \
+	windows-amd64-compatible \
-	windows-amd64v2 \
+	windows-amd64 \
-	windows-amd64v3 \
 	windows-arm64 \
     windows-arm32v7
 
@@ -42,16 +47,16 @@ all:linux-amd64 linux-arm64\
 	darwin-amd64 darwin-arm64\
  	windows-amd64 windows-arm64\
 
-docker:
-	$(GOBUILD) -o $(BINDIR)/$(NAME)-$@
 
-darwin-amd64v3:
+darwin-all: darwin-amd64 darwin-arm64
+
+docker:
+	GOAMD64=v1 $(GOBUILD) -o $(BINDIR)/$(NAME)-$@
+
+darwin-amd64:
 	GOARCH=amd64 GOOS=darwin GOAMD64=v3 $(GOBUILD) -o $(BINDIR)/$(NAME)-$@
 
-darwin-amd64v2:
+darwin-amd64-compatible:
-	GOARCH=amd64 GOOS=darwin GOAMD64=v2 $(GOBUILD) -o $(BINDIR)/$(NAME)-$@
-
-darwin-amd64v1:
 	GOARCH=amd64 GOOS=darwin GOAMD64=v1 $(GOBUILD) -o $(BINDIR)/$(NAME)-$@
 
 darwin-arm64:
@@ -60,13 +65,10 @@ darwin-arm64:
 linux-386:
 	GOARCH=386 GOOS=linux $(GOBUILD) -o $(BINDIR)/$(NAME)-$@
 
-linux-amd64v3:
+linux-amd64:
 	GOARCH=amd64 GOOS=linux GOAMD64=v3 $(GOBUILD) -o $(BINDIR)/$(NAME)-$@
 
-linux-amd64v2:
+linux-amd64-compatible:
-	GOARCH=amd64 GOOS=linux GOAMD64=v2 $(GOBUILD) -o $(BINDIR)/$(NAME)-$@
-
-linux-amd64v1:
 	GOARCH=amd64 GOOS=linux GOAMD64=v1 $(GOBUILD) -o $(BINDIR)/$(NAME)-$@
 
 linux-arm64:
@@ -114,13 +116,10 @@ freebsd-arm64:
 windows-386:
 	GOARCH=386 GOOS=windows $(GOBUILD) -o $(BINDIR)/$(NAME)-$@.exe
 
-windows-amd64v3:
+windows-amd64:
 	GOARCH=amd64 GOOS=windows GOAMD64=v3 $(GOBUILD) -o $(BINDIR)/$(NAME)-$@.exe
 
-windows-amd64v2:
+windows-amd64-compatible:
-	GOARCH=amd64 GOOS=windows GOAMD64=v2 $(GOBUILD) -o $(BINDIR)/$(NAME)-$@.exe
-
-windows-amd64v1:
 	GOARCH=amd64 GOOS=windows GOAMD64=v1 $(GOBUILD) -o $(BINDIR)/$(NAME)-$@.exe
 
 windows-arm64:
@@ -151,3 +150,11 @@ lint:
 
 clean:
 	rm $(BINDIR)/*
+
+CLANG ?= clang-14
+CFLAGS := -O2 -g -Wall -Werror $(CFLAGS)
+
+ebpf: export BPF_CLANG := $(CLANG)
+ebpf: export BPF_CFLAGS := $(CFLAGS)
+ebpf:
+	cd component/ebpf/ && go generate ./...

README.md

@@ -29,12 +29,42 @@
 - Netfilter TCP redirecting. Deploy Clash on your Internet gateway with `iptables`.
 - Comprehensive HTTP RESTful API controller
 
-## Getting Started
+## Wiki
-Documentations are now moved to [GitHub Wiki](https://github.com/Dreamacro/clash/wiki).
 
-## Advanced usage for this branch
+Documentation and configuring examples are available on [wiki](https://github.com/MetaCubeX/Clash.Meta/wiki) and [Clash.Meta Wiki](https://docs.metacubex.one/).
 
-### DNS configuration
+## Build
+
+You should install [golang](https://go.dev) first.
+
+Then get the source code of Clash.Meta:
+
+```shell
+git clone https://github.com/MetaCubeX/Clash.Meta.git
+cd Clash.Meta && go mod download
+```
+
+If you can't visit github,you should set proxy first:
+
+```shell
+go env -w GOPROXY=https://goproxy.io,direct
+```
+
+Now you can build it:
+
+```shell
+go build
+```
+
+If you need gvisor for tun stack, build with:
+
+```shell
+go build -tags with_gvisor
+```
+
+<!-- ## Advanced usage of this fork -->
+
+<!-- ### DNS configuration
 
 Support `geosite` with `fallback-filter`.
 
@@ -44,7 +74,6 @@ Support resolve ip with a `Proxy Tunnel`.
 
 ```yaml
 proxy-groups:
-
   - name: DNS
     type: url-test
     use:
@@ -53,6 +82,7 @@ proxy-groups:
     interval: 180
     lazy: true
 ```
+
 ```yaml
 dns:
   enable: true
@@ -68,8 +98,8 @@ dns:
     - https://doh.pub/dns-query
     - tls://223.5.5.5:853
   fallback:
-    - 'https://1.0.0.1/dns-query#DNS'  # append the proxy adapter name or group name to the end of DNS URL with '#' prefix.
+    - "https://1.0.0.1/dns-query#DNS" # append the proxy adapter name or group name to the end of DNS URL with '#' prefix.
-    - 'tls://8.8.4.4:853#DNS'
+    - "tls://8.8.4.4:853#DNS"
   fallback-filter:
     geoip: false
     geosite:
@@ -90,21 +120,23 @@ Built-in [Wintun](https://www.wintun.net) driver.
 # Enable the TUN listener
 tun:
   enable: true
-  stack: gvisor #  only gvisor
+  stack: system #   system/gvisor
   dns-hijack:
     - 0.0.0.0:53 # additional dns server listen on TUN
   auto-route: true # auto set global route
 ```
+
 ### Rules configuration
+
 - Support rule `GEOSITE`.
 - Support rule-providers `RULE-SET`.
 - Support `multiport` condition for rule `SRC-PORT` and `DST-PORT`.
 - Support `network` condition for all rules.
 - Support source IPCIDR condition for all rules, just append to the end.
 - The `GEOSITE` databases via https://github.com/Loyalsoldier/v2ray-rules-dat.
+
 ```yaml
 rules:
-
   # network(tcp/udp) condition for all rules
   - DOMAIN-SUFFIX,bilibili.com,DIRECT,tcp
   - DOMAIN-SUFFIX,bilibili.com,REJECT,udp
@@ -133,7 +165,6 @@ rules:
   - MATCH,PROXY
 ```
 
-
 ### Proxies configuration
 
 Active health detection `urltest / fallback` (based on tcp handshake, multiple failures within a limited time will actively trigger health detection to use the node)
@@ -142,18 +173,17 @@ Support `Policy Group Filter`
 
 ```yaml
 proxy-groups:
-
   - name: 🚀 HK Group
     type: select
     use:
       - ALL
-    filter: 'HK'
+    filter: "HK"
 
   - name: 🚀 US Group
     type: select
     use:
       - ALL
-    filter: 'US'
+    filter: "US"
 
 proxy-providers:
   ALL:
@@ -165,14 +195,12 @@ proxy-providers:
       enable: true
       interval: 600
       url: http://www.gstatic.com/generate_204
-
 ```
 
-
-
 Support outbound transport protocol `VLESS`.
 
 The XTLS support (TCP/UDP) transport by the XRAY-CORE.
+
 ```yaml
 proxies:
   - name: "vless"
@@ -212,8 +240,46 @@ proxies:
       grpc-service-name: grpcname
 ```
 
+Support outbound transport protocol `Wireguard`
+
+```yaml
+proxies:
+  - name: "wg"
+    type: wireguard
+    server: 162.159.192.1
+    port: 2480
+    ip: 172.16.0.2
+    ipv6: fd01:5ca1:ab1e:80fa:ab85:6eea:213f:f4a5
+    private-key: eCtXsJZ27+4PbhDkHnB923tkUn2Gj59wZw5wFA75MnU=
+    public-key: Cr8hWlKvtDt7nrvf+f0brNQQzabAqrjfBvas9pmowjo=
+    udp: true
+```
+
+Support outbound transport protocol `Tuic`
+
+```yaml
+proxies:
+  - name: "tuic"
+    server: www.example.com
+    port: 10443
+    type: tuic
+    token: TOKEN
+    # ip: 127.0.0.1 # for overwriting the DNS lookup result of the server address set in option 'server'
+    # heartbeat-interval: 10000
+    # alpn: [h3]
+    # disable-sni: true
+    reduce-rtt: true
+    # request-timeout: 8000
+    udp-relay-mode: native # Available: "native", "quic". Default: "native"
+    # congestion-controller: bbr # Available: "cubic", "new_reno", "bbr". Default: "cubic"
+    # max-udp-relay-packet-size: 1500
+    # fast-open: true
+    # skip-cert-verify: true
+``` -->
+
 ### IPTABLES configuration
-Work on Linux OS who's supported `iptables`
+
+Work on Linux OS which supported `iptables`
 
 ```yaml
 # Enable the TPROXY listener
@@ -224,17 +290,15 @@ iptables:
   inbound-interface: eth0 # detect the inbound interface, default is 'lo'
 ```
 
-
 ### General installation guide for Linux
-+ Create user given name `clash-meta`
 
-+ Download and decompress pre-built binaries from [releases](https://github.com/MetaCubeX/Clash.Meta/releases)  
+- Create user given name `clash-meta`
 
-+ Rename executable file to `Clash-Meta` and move to `/usr/local/bin/` 
+- Download and decompress pre-built binaries from [releases](https://github.com/MetaCubeX/Clash.Meta/releases)
-
-+ Create folder `/etc/Clash-Meta/` as working directory 
 
+- Rename executable file to `Clash-Meta` and move to `/usr/local/bin/`
 
+- Create folder `/etc/Clash-Meta/` as working directory
 
 Run Meta Kernel by user `clash-meta` as a daemon.
 
@@ -251,8 +315,8 @@ User=clash-meta
 Group=clash-meta
 LimitNPROC=500
 LimitNOFILE=1000000
-CapabilityBoundingSet=cap_net_admin
+CapabilityBoundingSet=CAP_NET_ADMIN CAP_NET_RAW CAP_NET_BIND_SERVICE
-AmbientCapabilities=cap_net_admin
+AmbientCapabilities=CAP_NET_ADMIN CAP_NET_RAW CAP_NET_BIND_SERVICE
 Restart=always
 ExecStartPre=/usr/bin/sleep 1s
 ExecStart=/usr/local/bin/Clash-Meta -d /etc/Clash-Meta
@@ -260,10 +324,13 @@ ExecStart=/usr/local/bin/Clash-Meta -d /etc/Clash-Meta
 [Install]
 WantedBy=multi-user.target
 ```
+
 Launch clashd on system startup with:
+
 ```shell
 $ systemctl enable Clash-Meta
 ```
+
 Launch clashd immediately with:
 
 ```shell
@@ -274,22 +341,29 @@ $ systemctl start Clash-Meta
 
 Clash add field `Process` to `Metadata` and prepare to get process name for Restful API `GET /connections`.
 
-To display process name in GUI please use [Dashboard For Meta](https://github.com/Clash-Mini/Dashboard).
+To display process name in GUI please use [Razord-meta](https://github.com/MetaCubeX/Razord-meta).
 
-![img.png](https://github.com/Clash-Mini/Dashboard/raw/master/View/Dashboard-Process.png)
+### Dashboard
+
+We also made a custom fork of yacd provide better support for this project, check it out at [Yacd-meta](https://github.com/MetaCubeX/Yacd-meta)
 
 ## Development
 
 If you want to build an application that uses clash as a library, check out the
 the [GitHub Wiki](https://github.com/Dreamacro/clash/wiki/use-clash-as-a-library)
 
+## Debugging
+Check [wiki](https://github.com/MetaCubeX/Clash.Meta/wiki/How-to-use-debug-api) to get an instruction on using debug API.
+
+
 ## Credits
 
-* [Dreamacro/clash](https://github.com/Dreamacro/clash)
+- [Dreamacro/clash](https://github.com/Dreamacro/clash)
-* [riobard/go-shadowsocks2](https://github.com/riobard/go-shadowsocks2)
+- [SagerNet/sing-box](https://github.com/SagerNet/sing-box)
-* [v2ray/v2ray-core](https://github.com/v2ray/v2ray-core)
+- [riobard/go-shadowsocks2](https://github.com/riobard/go-shadowsocks2)
-* [WireGuard/wireguard-go](https://github.com/WireGuard/wireguard-go)
+- [v2ray/v2ray-core](https://github.com/v2ray/v2ray-core)
-* [yaling888/clash-plus-pro](https://github.com/yaling888/clash)
+- [WireGuard/wireguard-go](https://github.com/WireGuard/wireguard-go)
+- [yaling888/clash-plus-pro](https://github.com/yaling888/clash)
 
 ## License
 

adapter/adapter.go

@@ -4,15 +4,14 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"net"
-	"net/http"
-	"net/url"
-	"strings"
-	"time"
-
 	"github.com/Dreamacro/clash/common/queue"
 	"github.com/Dreamacro/clash/component/dialer"
 	C "github.com/Dreamacro/clash/constant"
+	"net"
+	"net/http"
+	"net/netip"
+	"net/url"
+	"time"
 
 	"go.uber.org/atomic"
 )
@@ -40,11 +39,6 @@ func (p *Proxy) Dial(metadata *C.Metadata) (C.Conn, error) {
 // DialContext implements C.ProxyAdapter
 func (p *Proxy) DialContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (C.Conn, error) {
 	conn, err := p.ProxyAdapter.DialContext(ctx, metadata, opts...)
-	wasCancel := false
-	if err != nil {
-		wasCancel = strings.Contains(err.Error(), "operation was canceled")
-	}
-	p.alive.Store(err == nil || wasCancel)
 	return conn, err
 }
 
@@ -58,15 +52,14 @@ func (p *Proxy) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
 // ListenPacketContext implements C.ProxyAdapter
 func (p *Proxy) ListenPacketContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (C.PacketConn, error) {
 	pc, err := p.ProxyAdapter.ListenPacketContext(ctx, metadata, opts...)
-	p.alive.Store(err == nil)
 	return pc, err
 }
 
 // DelayHistory implements C.Proxy
 func (p *Proxy) DelayHistory() []C.DelayHistory {
-	queue := p.history.Copy()
+	queueM := p.history.Copy()
 	histories := []C.DelayHistory{}
-	for _, item := range queue {
+	for _, item := range queueM {
 		histories = append(histories, item)
 	}
 	return histories
@@ -95,10 +88,12 @@ func (p *Proxy) MarshalJSON() ([]byte, error) {
 	}
 
 	mapping := map[string]any{}
-	json.Unmarshal(inner, &mapping)
+	_ = json.Unmarshal(inner, &mapping)
 	mapping["history"] = p.DelayHistory()
 	mapping["name"] = p.Name()
 	mapping["udp"] = p.SupportUDP()
+	mapping["xudp"] = p.SupportXUDP()
+	mapping["tfo"] = p.SupportTFO()
 	return json.Marshal(mapping)
 }
 
@@ -129,7 +124,9 @@ func (p *Proxy) URLTest(ctx context.Context, url string) (t uint16, err error) {
 	if err != nil {
 		return
 	}
-	defer instance.Close()
+	defer func() {
+		_ = instance.Close()
+	}()
 
 	req, err := http.NewRequest(http.MethodHead, url, nil)
 	if err != nil {
@@ -138,7 +135,7 @@ func (p *Proxy) URLTest(ctx context.Context, url string) (t uint16, err error) {
 	req = req.WithContext(ctx)
 
 	transport := &http.Transport{
-		Dial: func(string, string) (net.Conn, error) {
+		DialContext: func(context.Context, string, string) (net.Conn, error) {
 			return instance, nil
 		},
 		// from http.DefaultTransport
@@ -149,26 +146,32 @@ func (p *Proxy) URLTest(ctx context.Context, url string) (t uint16, err error) {
 	}
 
 	client := http.Client{
+		Timeout:   30 * time.Second,
 		Transport: transport,
 		CheckRedirect: func(req *http.Request, via []*http.Request) error {
 			return http.ErrUseLastResponse
 		},
 	}
+
 	defer client.CloseIdleConnections()
+
 	resp, err := client.Do(req)
+
 	if err != nil {
 		return
 	}
 
+	_ = resp.Body.Close()
+
 	if unifiedDelay {
-		start = time.Now()
+		second := time.Now()
 		resp, err = client.Do(req)
-		if err != nil {
+		if err == nil {
-			return
+			_ = resp.Body.Close()
+			start = second
 		}
 	}
 
-	resp.Body.Close()
 	t = uint16(time.Since(start) / time.Millisecond)
 	return
 }
@@ -197,9 +200,8 @@ func urlToMetadata(rawURL string) (addr C.Metadata, err error) {
 	}
 
 	addr = C.Metadata{
-		AddrType: C.AtypDomainName,
 		Host:    u.Hostname(),
-		DstIP:    nil,
+		DstIP:   netip.Addr{},
 		DstPort: port,
 	}
 	return

adapter/inbound/addition.go

@@ -0,0 +1,29 @@
+package inbound
+
+import (
+	C "github.com/Dreamacro/clash/constant"
+)
+
+type Addition func(metadata *C.Metadata)
+
+func (a Addition) Apply(metadata *C.Metadata) {
+	a(metadata)
+}
+
+func WithInName(name string) Addition {
+	return func(metadata *C.Metadata) {
+		metadata.InName = name
+	}
+}
+
+func WithSpecialRules(specialRules string) Addition {
+	return func(metadata *C.Metadata) {
+		metadata.SpecialRules = specialRules
+	}
+}
+
+func WithSpecialProxy(specialProxy string) Addition {
+	return func(metadata *C.Metadata) {
+		metadata.SpecialProxy = specialProxy
+	}
+}

adapter/inbound/http.go

@@ -9,13 +9,20 @@ 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, conn net.Conn, additions ...Addition) *context.ConnContext {
 	metadata := parseSocksAddr(target)
 	metadata.NetWork = C.TCP
 	metadata.Type = C.HTTP
-	if ip, port, err := parseAddr(source.String()); err == nil {
+	for _, addition := range additions {
+		addition.Apply(metadata)
+	}
+	if ip, port, err := parseAddr(source); err == nil {
 		metadata.SrcIP = ip
 		metadata.SrcPort = port
 	}
+	if ip, port, err := parseAddr(conn.LocalAddr()); err == nil {
+		metadata.InIP = ip
+		metadata.InPort = port
+	}
 	return context.NewConnContext(conn, metadata)
 }

adapter/inbound/https.go

@@ -9,12 +9,19 @@ import (
 )
 
 // NewHTTPS receive CONNECT request and return ConnContext
-func NewHTTPS(request *http.Request, conn net.Conn) *context.ConnContext {
+func NewHTTPS(request *http.Request, conn net.Conn, additions ...Addition) *context.ConnContext {
 	metadata := parseHTTPAddr(request)
-	metadata.Type = C.HTTPCONNECT
+	metadata.Type = C.HTTPS
-	if ip, port, err := parseAddr(conn.RemoteAddr().String()); err == nil {
+	for _, addition := range additions {
+		addition.Apply(metadata)
+	}
+	if ip, port, err := parseAddr(conn.RemoteAddr()); err == nil {
 		metadata.SrcIP = ip
 		metadata.SrcPort = port
 	}
+	if ip, port, err := parseAddr(conn.LocalAddr()); err == nil {
+		metadata.InIP = ip
+		metadata.InPort = port
+	}
 	return context.NewConnContext(conn, metadata)
 }

adapter/inbound/listen.go

@@ -0,0 +1,26 @@
+package inbound
+
+import (
+	"context"
+	"net"
+
+	"github.com/sagernet/tfo-go"
+)
+
+var (
+	lc = tfo.ListenConfig{
+		DisableTFO: true,
+	}
+)
+
+func SetTfo(open bool) {
+	lc.DisableTFO = !open
+}
+
+func ListenContext(ctx context.Context, network, address string) (net.Listener, error) {
+	return lc.Listen(ctx, network, address)
+}
+
+func Listen(network, address string) (net.Listener, error) {
+	return ListenContext(context.Background(), network, address)
+}

adapter/inbound/packet.go

@@ -17,17 +17,26 @@ 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, packet C.UDPPacket, source C.Type, additions ...Addition) C.PacketAdapter {
 	metadata := parseSocksAddr(target)
 	metadata.NetWork = C.UDP
 	metadata.Type = source
-	if ip, port, err := parseAddr(packet.LocalAddr().String()); err == nil {
+	for _, addition := range additions {
+		addition.Apply(metadata)
+	}
+	if ip, port, err := parseAddr(packet.LocalAddr()); err == nil {
 		metadata.SrcIP = ip
 		metadata.SrcPort = port
 	}
+	if p, ok := packet.(C.UDPPacketInAddr); ok {
+		if ip, port, err := parseAddr(p.InAddr()); err == nil {
+			metadata.InIP = ip
+			metadata.InPort = port
+		}
+	}
 
 	return &PacketAdapter{
-		UDPPacket: packet,
+		packet,
-		metadata:  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"
@@ -9,17 +10,21 @@ import (
 )
 
 // NewSocket receive TCP inbound and return ConnContext
-func NewSocket(target socks5.Addr, conn net.Conn, source C.Type) *context.ConnContext {
+func NewSocket(target socks5.Addr, conn net.Conn, source C.Type, additions ...Addition) *context.ConnContext {
 	metadata := parseSocksAddr(target)
 	metadata.NetWork = C.TCP
 	metadata.Type = source
-	remoteAddr := conn.RemoteAddr()
+	for _, addition := range additions {
-	// Filter when net.Addr interface is nil
+		addition.Apply(metadata)
-	if remoteAddr != nil {
+	}
-		if ip, port, err := parseAddr(remoteAddr.String()); err == nil {
+
+	if ip, port, err := parseAddr(conn.RemoteAddr()); err == nil {
 		metadata.SrcIP = ip
 		metadata.SrcPort = port
 	}
+	if ip, port, err := parseAddr(conn.LocalAddr()); err == nil {
+		metadata.InIP = ip
+		metadata.InPort = port
 	}
 
 	return context.NewConnContext(conn, metadata)
@@ -29,18 +34,14 @@ func NewInner(conn net.Conn, dst string, host string) *context.ConnContext {
 	metadata := &C.Metadata{}
 	metadata.NetWork = C.TCP
 	metadata.Type = C.INNER
-	metadata.DNSMode = C.DNSMapping
+	metadata.DNSMode = C.DNSNormal
 	metadata.Host = host
-	metadata.AddrType = C.AtypDomainName
 	metadata.Process = C.ClashName
-	if ip, port, err := parseAddr(dst); err == nil {
+	if h, port, err := net.SplitHostPort(dst); err == nil {
 		metadata.DstPort = port
 		if host == "" {
+			if ip, err := netip.ParseAddr(h); err == nil {
 				metadata.DstIP = ip
-			if ip.To4() == nil {
-				metadata.AddrType = C.AtypIPv6
-			} else {
-				metadata.AddrType = C.AtypIPv4
 			}
 		}
 	}

adapter/inbound/util.go

@@ -1,19 +1,20 @@
 package inbound
 
 import (
+	"errors"
 	"net"
 	"net/http"
+	"net/netip"
 	"strconv"
 	"strings"
 
+	"github.com/Dreamacro/clash/common/nnip"
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/transport/socks5"
 )
 
 func parseSocksAddr(target socks5.Addr) *C.Metadata {
-	metadata := &C.Metadata{
+	metadata := &C.Metadata{}
-		AddrType: int(target[0]),
-	}
 
 	switch target[0] {
 	case socks5.AtypDomainName:
@@ -21,12 +22,11 @@ func parseSocksAddr(target socks5.Addr) *C.Metadata {
 		metadata.Host = strings.TrimRight(string(target[2:2+target[1]]), ".")
 		metadata.DstPort = strconv.Itoa((int(target[2+target[1]]) << 8) | int(target[2+target[1]+1]))
 	case socks5.AtypIPv4:
-		ip := net.IP(target[1 : 1+net.IPv4len])
+		metadata.DstIP = nnip.IpToAddr(net.IP(target[1 : 1+net.IPv4len]))
-		metadata.DstIP = ip
 		metadata.DstPort = strconv.Itoa((int(target[1+net.IPv4len]) << 8) | int(target[1+net.IPv4len+1]))
 	case socks5.AtypIPv6:
-		ip := net.IP(target[1 : 1+net.IPv6len])
+		ip6, _ := netip.AddrFromSlice(target[1 : 1+net.IPv6len])
-		metadata.DstIP = ip
+		metadata.DstIP = ip6.Unmap()
 		metadata.DstPort = strconv.Itoa((int(target[1+net.IPv6len]) << 8) | int(target[1+net.IPv6len+1]))
 	}
 
@@ -45,32 +45,36 @@ func parseHTTPAddr(request *http.Request) *C.Metadata {
 
 	metadata := &C.Metadata{
 		NetWork: C.TCP,
-		AddrType: C.AtypDomainName,
 		Host:    host,
-		DstIP:    nil,
+		DstIP:   netip.Addr{},
 		DstPort: port,
 	}
 
-	ip := net.ParseIP(host)
+	ip, err := netip.ParseAddr(host)
-	if ip != nil {
+	if err == nil {
-		switch {
-		case ip.To4() == nil:
-			metadata.AddrType = C.AtypIPv6
-		default:
-			metadata.AddrType = C.AtypIPv4
-		}
 		metadata.DstIP = ip
 	}
 
 	return metadata
 }
 
-func parseAddr(addr string) (net.IP, string, error) {
+func parseAddr(addr net.Addr) (netip.Addr, string, error) {
-	host, port, err := net.SplitHostPort(addr)
+	// Filter when net.Addr interface is nil
+	if addr == nil {
+		return netip.Addr{}, "", errors.New("nil addr")
+	}
+	if rawAddr, ok := addr.(interface{ RawAddr() net.Addr }); ok {
+		ip, port, err := parseAddr(rawAddr.RawAddr())
+		if err == nil {
+			return ip, port, err
+		}
+	}
+	addrStr := addr.String()
+	host, port, err := net.SplitHostPort(addrStr)
 	if err != nil {
-		return nil, "", err
+		return netip.Addr{}, "", err
 	}
 
-	ip := net.ParseIP(host)
+	ip, err := netip.ParseAddr(host)
-	return ip, port, nil
+	return ip, port, err
 }

adapter/outbound/base.go

@@ -5,9 +5,13 @@ import (
 	"encoding/json"
 	"errors"
 	"net"
+	"strings"
 
+	N "github.com/Dreamacro/clash/common/net"
 	"github.com/Dreamacro/clash/component/dialer"
 	C "github.com/Dreamacro/clash/constant"
+
+	"github.com/gofrs/uuid"
 )
 
 type Base struct {
@@ -16,7 +20,11 @@ type Base struct {
 	iface  string
 	tp     C.AdapterType
 	udp    bool
+	xudp   bool
+	tfo    bool
 	rmark  int
+	id     string
+	prefer C.DNSPrefer
 }
 
 // Name implements C.ProxyAdapter
@@ -24,6 +32,20 @@ func (b *Base) Name() string {
 	return b.name
 }
 
+// Id implements C.ProxyAdapter
+func (b *Base) Id() string {
+	if b.id == "" {
+		id, err := uuid.NewV6()
+		if err != nil {
+			b.id = b.name
+		} else {
+			b.id = id.String()
+		}
+	}
+
+	return b.id
+}
+
 // Type implements C.ProxyAdapter
 func (b *Base) Type() C.AdapterType {
 	return b.tp
@@ -34,20 +56,55 @@ func (b *Base) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 	return c, errors.New("no support")
 }
 
+func (b *Base) DialContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (C.Conn, error) {
+	return nil, errors.New("no support")
+}
+
+// DialContextWithDialer implements C.ProxyAdapter
+func (b *Base) DialContextWithDialer(ctx context.Context, dialer C.Dialer, metadata *C.Metadata) (_ C.Conn, err error) {
+	return nil, errors.New("no support")
+}
+
 // ListenPacketContext implements C.ProxyAdapter
 func (b *Base) ListenPacketContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (C.PacketConn, error) {
 	return nil, errors.New("no support")
 }
 
+// ListenPacketWithDialer implements C.ProxyAdapter
+func (b *Base) ListenPacketWithDialer(ctx context.Context, dialer C.Dialer, metadata *C.Metadata) (_ C.PacketConn, err error) {
+	return nil, errors.New("no support")
+}
+
+// SupportWithDialer implements C.ProxyAdapter
+func (b *Base) SupportWithDialer() bool {
+	return false
+}
+
+// SupportUOT implements C.ProxyAdapter
+func (b *Base) SupportUOT() bool {
+	return false
+}
+
 // SupportUDP implements C.ProxyAdapter
 func (b *Base) SupportUDP() bool {
 	return b.udp
 }
 
+// SupportXUDP implements C.ProxyAdapter
+func (b *Base) SupportXUDP() bool {
+	return b.xudp
+}
+
+// SupportTFO implements C.ProxyAdapter
+func (b *Base) SupportTFO() bool {
+	return b.tfo
+}
+
 // MarshalJSON implements C.ProxyAdapter
 func (b *Base) MarshalJSON() ([]byte, error) {
 	return json.Marshal(map[string]string{
 		"type": b.Type().String(),
+		"id":   b.Id(),
 	})
 }
 
@@ -57,7 +114,7 @@ func (b *Base) Addr() string {
 }
 
 // Unwrap implements C.ProxyAdapter
-func (b *Base) Unwrap(metadata *C.Metadata) C.Proxy {
+func (b *Base) Unwrap(metadata *C.Metadata, touch bool) C.Proxy {
 	return nil
 }
 
@@ -71,12 +128,30 @@ func (b *Base) DialOptions(opts ...dialer.Option) []dialer.Option {
 		opts = append(opts, dialer.WithRoutingMark(b.rmark))
 	}
 
+	switch b.prefer {
+	case C.IPv4Only:
+		opts = append(opts, dialer.WithOnlySingleStack(true))
+	case C.IPv6Only:
+		opts = append(opts, dialer.WithOnlySingleStack(false))
+	case C.IPv4Prefer:
+		opts = append(opts, dialer.WithPreferIPv4())
+	case C.IPv6Prefer:
+		opts = append(opts, dialer.WithPreferIPv6())
+	default:
+	}
+
+	if b.tfo {
+		opts = append(opts, dialer.WithTFO(true))
+	}
+
 	return opts
 }
 
 type BasicOption struct {
+	TFO         bool   `proxy:"tfo,omitempty" group:"tfo,omitempty"`
 	Interface   string `proxy:"interface-name,omitempty" group:"interface-name,omitempty"`
 	RoutingMark int    `proxy:"routing-mark,omitempty" group:"routing-mark,omitempty"`
+	IPVersion   string `proxy:"ip-version,omitempty" group:"ip-version,omitempty"`
 }
 
 type BaseOption struct {
@@ -84,8 +159,11 @@ type BaseOption struct {
 	Addr        string
 	Type        C.AdapterType
 	UDP         bool
+	XUDP        bool
+	TFO         bool
 	Interface   string
 	RoutingMark int
+	Prefer      C.DNSPrefer
 }
 
 func NewBase(opt BaseOption) *Base {
@@ -94,14 +172,22 @@ func NewBase(opt BaseOption) *Base {
 		addr:   opt.Addr,
 		tp:     opt.Type,
 		udp:    opt.UDP,
+		xudp:   opt.XUDP,
+		tfo:    opt.TFO,
 		iface:  opt.Interface,
 		rmark:  opt.RoutingMark,
+		prefer: opt.Prefer,
 	}
 }
 
 type conn struct {
-	net.Conn
+	N.ExtendedConn
 	chain                   C.Chain
+	actualRemoteDestination string
+}
+
+func (c *conn) RemoteDestination() string {
+	return c.actualRemoteDestination
 }
 
 // Chains implements C.Connection
@@ -114,13 +200,22 @@ func (c *conn) AppendToChains(a C.ProxyAdapter) {
 	c.chain = append(c.chain, a.Name())
 }
 
+func (c *conn) Upstream() any {
+	return c.ExtendedConn
+}
+
 func NewConn(c net.Conn, a C.ProxyAdapter) C.Conn {
-	return &conn{c, []string{a.Name()}}
+	return &conn{N.NewExtendedConn(c), []string{a.Name()}, parseRemoteDestination(a.Addr())}
 }
 
 type packetConn struct {
 	net.PacketConn
 	chain                   C.Chain
+	actualRemoteDestination string
+}
+
+func (c *packetConn) RemoteDestination() string {
+	return c.actualRemoteDestination
 }
 
 // Chains implements C.Connection
@@ -134,5 +229,17 @@ func (c *packetConn) AppendToChains(a C.ProxyAdapter) {
 }
 
 func newPacketConn(pc net.PacketConn, a C.ProxyAdapter) C.PacketConn {
-	return &packetConn{pc, []string{a.Name()}}
+	return &packetConn{pc, []string{a.Name()}, parseRemoteDestination(a.Addr())}
+}
+
+func parseRemoteDestination(addr string) string {
+	if dst, _, err := net.SplitHostPort(addr); err == nil {
+		return dst
+	} else {
+		if addrError, ok := err.(*net.AddrError); ok && strings.Contains(addrError.Err, "missing port") {
+			return dst
+		} else {
+			return ""
+		}
+	}
 }

adapter/outbound/direct.go

@@ -5,6 +5,7 @@ import (
 	"net"
 
 	"github.com/Dreamacro/clash/component/dialer"
+	"github.com/Dreamacro/clash/component/resolver"
 	C "github.com/Dreamacro/clash/constant"
 )
 
@@ -14,7 +15,7 @@ type Direct struct {
 
 // DialContext implements C.ProxyAdapter
 func (d *Direct) DialContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (C.Conn, error) {
-	opts = append(opts, dialer.WithDirect())
+	opts = append(opts, dialer.WithResolver(resolver.DefaultResolver))
 	c, err := dialer.DialContext(ctx, "tcp", metadata.RemoteAddress(), d.Base.DialOptions(opts...)...)
 	if err != nil {
 		return nil, err
@@ -25,8 +26,8 @@ func (d *Direct) DialContext(ctx context.Context, metadata *C.Metadata, opts ...
 
 // ListenPacketContext implements C.ProxyAdapter
 func (d *Direct) ListenPacketContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (C.PacketConn, error) {
-	opts = append(opts, dialer.WithDirect())
+	opts = append(opts, dialer.WithResolver(resolver.DefaultResolver))
-	pc, err := dialer.ListenPacket(ctx, "udp", "", d.Base.DialOptions(opts...)...)
+	pc, err := dialer.ListenPacket(ctx, dialer.ParseNetwork("udp", metadata.DstIP), "", d.Base.DialOptions(opts...)...)
 	if err != nil {
 		return nil, err
 	}
@@ -43,6 +44,7 @@ func NewDirect() *Direct {
 			name:   "DIRECT",
 			tp:     C.Direct,
 			udp:    true,
+			prefer: C.DualStack,
 		},
 	}
 }
@@ -53,16 +55,7 @@ func NewCompatible() *Direct {
 			name:   "COMPATIBLE",
 			tp:     C.Compatible,
 			udp:    true,
-		},
+			prefer: C.DualStack,
-	}
-}
-
-func NewPass() *Direct {
-	return &Direct{
-		Base: &Base{
-			name: "PASS",
-			tp:   C.Pass,
-			udp:  true,
 		},
 	}
 }

adapter/outbound/http.go

@@ -14,6 +14,7 @@ import (
 	"strconv"
 
 	"github.com/Dreamacro/clash/component/dialer"
+	tlsC "github.com/Dreamacro/clash/component/tls"
 	C "github.com/Dreamacro/clash/constant"
 )
 
@@ -35,6 +36,7 @@ type HttpOption struct {
 	TLS            bool              `proxy:"tls,omitempty"`
 	SNI            string            `proxy:"sni,omitempty"`
 	SkipCertVerify bool              `proxy:"skip-cert-verify,omitempty"`
+	Fingerprint    string            `proxy:"fingerprint,omitempty"`
 	Headers        map[string]string `proxy:"headers,omitempty"`
 }
 
@@ -42,7 +44,9 @@ type HttpOption struct {
 func (h *Http) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 	if h.tlsConfig != nil {
 		cc := tls.Client(c, h.tlsConfig)
-		err := cc.Handshake()
+		ctx, cancel := context.WithTimeout(context.Background(), C.DefaultTLSTimeout)
+		defer cancel()
+		err := cc.HandshakeContext(ctx)
 		c = cc
 		if err != nil {
 			return nil, fmt.Errorf("%s connect error: %w", h.addr, err)
@@ -57,13 +61,20 @@ func (h *Http) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 
 // DialContext implements C.ProxyAdapter
 func (h *Http) DialContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (_ C.Conn, err error) {
-	c, err := dialer.DialContext(ctx, "tcp", h.addr, h.Base.DialOptions(opts...)...)
+	return h.DialContextWithDialer(ctx, dialer.NewDialer(h.Base.DialOptions(opts...)...), metadata)
+}
+
+// DialContextWithDialer implements C.ProxyAdapter
+func (h *Http) DialContextWithDialer(ctx context.Context, dialer C.Dialer, metadata *C.Metadata) (_ C.Conn, err error) {
+	c, err := dialer.DialContext(ctx, "tcp", h.addr)
 	if err != nil {
 		return nil, fmt.Errorf("%s connect error: %w", h.addr, err)
 	}
 	tcpKeepAlive(c)
 
-	defer safeConnClose(c, err)
+	defer func(c net.Conn) {
+		safeConnClose(c, err)
+	}(c)
 
 	c, err = h.StreamConn(c, metadata)
 	if err != nil {
@@ -73,6 +84,11 @@ func (h *Http) DialContext(ctx context.Context, metadata *C.Metadata, opts ...di
 	return NewConn(c, h), nil
 }
 
+// SupportWithDialer implements C.ProxyAdapter
+func (h *Http) SupportWithDialer() bool {
+	return true
+}
+
 func (h *Http) shakeHand(metadata *C.Metadata, rw io.ReadWriter) error {
 	addr := metadata.RemoteAddress()
 	req := &http.Request{
@@ -126,16 +142,26 @@ func (h *Http) shakeHand(metadata *C.Metadata, rw io.ReadWriter) error {
 	return fmt.Errorf("can not connect remote err code: %d", resp.StatusCode)
 }
 
-func NewHttp(option HttpOption) *Http {
+func NewHttp(option HttpOption) (*Http, error) {
 	var tlsConfig *tls.Config
 	if option.TLS {
 		sni := option.Server
 		if option.SNI != "" {
 			sni = option.SNI
 		}
-		tlsConfig = &tls.Config{
+		if len(option.Fingerprint) == 0 {
+			tlsConfig = tlsC.GetGlobalTLSConfig(&tls.Config{
 				InsecureSkipVerify: option.SkipCertVerify,
 				ServerName:         sni,
+			})
+		} else {
+			var err error
+			if tlsConfig, err = tlsC.GetSpecifiedFingerprintTLSConfig(&tls.Config{
+				InsecureSkipVerify: option.SkipCertVerify,
+				ServerName:         sni,
+			}, option.Fingerprint); err != nil {
+				return nil, err
+			}
 		}
 	}
 
@@ -144,12 +170,14 @@ func NewHttp(option HttpOption) *Http {
 			name:   option.Name,
 			addr:   net.JoinHostPort(option.Server, strconv.Itoa(option.Port)),
 			tp:     C.Http,
+			tfo:    option.TFO,
 			iface:  option.Interface,
 			rmark:  option.RoutingMark,
+			prefer: C.NewDNSPrefer(option.IPVersion),
 		},
 		user:      option.UserName,
 		pass:      option.Password,
 		tlsConfig: tlsConfig,
 		option:    &option,
-	}
+	}, nil
 }

adapter/outbound/hysteria.go

@@ -0,0 +1,344 @@
+package outbound
+
+import (
+	"context"
+	"crypto/sha256"
+	"crypto/tls"
+	"encoding/base64"
+	"encoding/hex"
+	"encoding/pem"
+	"fmt"
+	"net"
+	"net/netip"
+	"os"
+	"regexp"
+	"strconv"
+	"time"
+
+	"github.com/metacubex/quic-go"
+	"github.com/metacubex/quic-go/congestion"
+	M "github.com/sagernet/sing/common/metadata"
+
+	"github.com/Dreamacro/clash/component/dialer"
+	tlsC "github.com/Dreamacro/clash/component/tls"
+	C "github.com/Dreamacro/clash/constant"
+	"github.com/Dreamacro/clash/log"
+	hyCongestion "github.com/Dreamacro/clash/transport/hysteria/congestion"
+	"github.com/Dreamacro/clash/transport/hysteria/core"
+	"github.com/Dreamacro/clash/transport/hysteria/obfs"
+	"github.com/Dreamacro/clash/transport/hysteria/pmtud_fix"
+	"github.com/Dreamacro/clash/transport/hysteria/transport"
+)
+
+const (
+	mbpsToBps = 125000
+
+	DefaultStreamReceiveWindow     = 15728640 // 15 MB/s
+	DefaultConnectionReceiveWindow = 67108864 // 64 MB/s
+
+	DefaultALPN        = "hysteria"
+	DefaultProtocol    = "udp"
+	DefaultHopInterval = 10
+)
+
+var rateStringRegexp = regexp.MustCompile(`^(\d+)\s*([KMGT]?)([Bb])ps$`)
+
+type Hysteria struct {
+	*Base
+
+	client *core.Client
+}
+
+func (h *Hysteria) DialContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (C.Conn, error) {
+	hdc := hyDialerWithContext{
+		ctx: context.Background(),
+		hyDialer: func(network string) (net.PacketConn, error) {
+			return dialer.ListenPacket(ctx, network, "", h.Base.DialOptions(opts...)...)
+		},
+		remoteAddr: func(addr string) (net.Addr, error) {
+			return resolveUDPAddrWithPrefer(ctx, "udp", addr, h.prefer)
+		},
+	}
+
+	tcpConn, err := h.client.DialTCP(metadata.RemoteAddress(), &hdc)
+	if err != nil {
+		return nil, err
+	}
+
+	return NewConn(tcpConn, h), nil
+}
+
+func (h *Hysteria) ListenPacketContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (C.PacketConn, error) {
+	hdc := hyDialerWithContext{
+		ctx: context.Background(),
+		hyDialer: func(network string) (net.PacketConn, error) {
+			return dialer.ListenPacket(ctx, network, "", h.Base.DialOptions(opts...)...)
+		},
+		remoteAddr: func(addr string) (net.Addr, error) {
+			return resolveUDPAddrWithPrefer(ctx, "udp", addr, h.prefer)
+		},
+	}
+	udpConn, err := h.client.DialUDP(&hdc)
+	if err != nil {
+		return nil, err
+	}
+	return newPacketConn(&hyPacketConn{udpConn}, h), nil
+}
+
+type HysteriaOption struct {
+	BasicOption
+	Name                string   `proxy:"name"`
+	Server              string   `proxy:"server"`
+	Port                int      `proxy:"port,omitempty"`
+	Ports               string   `proxy:"ports,omitempty"`
+	Protocol            string   `proxy:"protocol,omitempty"`
+	ObfsProtocol        string   `proxy:"obfs-protocol,omitempty"` // compatible with Stash
+	Up                  string   `proxy:"up"`
+	UpSpeed             int      `proxy:"up-speed,omitempty"` // compatible with Stash
+	Down                string   `proxy:"down"`
+	DownSpeed           int      `proxy:"down-speed,omitempty"` // compatible with Stash
+	Auth                string   `proxy:"auth,omitempty"`
+	AuthString          string   `proxy:"auth-str,omitempty"`
+	Obfs                string   `proxy:"obfs,omitempty"`
+	SNI                 string   `proxy:"sni,omitempty"`
+	SkipCertVerify      bool     `proxy:"skip-cert-verify,omitempty"`
+	Fingerprint         string   `proxy:"fingerprint,omitempty"`
+	ALPN                []string `proxy:"alpn,omitempty"`
+	CustomCA            string   `proxy:"ca,omitempty"`
+	CustomCAString      string   `proxy:"ca-str,omitempty"`
+	ReceiveWindowConn   int      `proxy:"recv-window-conn,omitempty"`
+	ReceiveWindow       int      `proxy:"recv-window,omitempty"`
+	DisableMTUDiscovery bool     `proxy:"disable-mtu-discovery,omitempty"`
+	FastOpen            bool     `proxy:"fast-open,omitempty"`
+	HopInterval         int      `proxy:"hop-interval,omitempty"`
+}
+
+func (c *HysteriaOption) Speed() (uint64, uint64, error) {
+	var up, down uint64
+	up = stringToBps(c.Up)
+	if up == 0 {
+		return 0, 0, fmt.Errorf("invaild upload speed: %s", c.Up)
+	}
+
+	down = stringToBps(c.Down)
+	if down == 0 {
+		return 0, 0, fmt.Errorf("invaild download speed: %s", c.Down)
+	}
+
+	return up, down, nil
+}
+
+func NewHysteria(option HysteriaOption) (*Hysteria, error) {
+	clientTransport := &transport.ClientTransport{
+		Dialer: &net.Dialer{
+			Timeout: 8 * time.Second,
+		},
+	}
+	addr := net.JoinHostPort(option.Server, strconv.Itoa(option.Port))
+	ports := option.Ports
+
+	serverName := option.Server
+	if option.SNI != "" {
+		serverName = option.SNI
+	}
+
+	tlsConfig := &tls.Config{
+		ServerName:         serverName,
+		InsecureSkipVerify: option.SkipCertVerify,
+		MinVersion:         tls.VersionTLS13,
+	}
+
+	var bs []byte
+	var err error
+	if len(option.CustomCA) > 0 {
+		bs, err = os.ReadFile(option.CustomCA)
+		if err != nil {
+			return nil, fmt.Errorf("hysteria %s load ca error: %w", addr, err)
+		}
+	} else if option.CustomCAString != "" {
+		bs = []byte(option.CustomCAString)
+	}
+
+	if len(bs) > 0 {
+		block, _ := pem.Decode(bs)
+		if block == nil {
+			return nil, fmt.Errorf("CA cert is not PEM")
+		}
+
+		fpBytes := sha256.Sum256(block.Bytes)
+		if len(option.Fingerprint) == 0 {
+			option.Fingerprint = hex.EncodeToString(fpBytes[:])
+		}
+	}
+
+	if len(option.Fingerprint) != 0 {
+		var err error
+		tlsConfig, err = tlsC.GetSpecifiedFingerprintTLSConfig(tlsConfig, option.Fingerprint)
+		if err != nil {
+			return nil, err
+		}
+	} else {
+		tlsConfig = tlsC.GetGlobalTLSConfig(tlsConfig)
+	}
+
+	if len(option.ALPN) > 0 {
+		tlsConfig.NextProtos = option.ALPN
+	} else {
+		tlsConfig.NextProtos = []string{DefaultALPN}
+	}
+	quicConfig := &quic.Config{
+		InitialStreamReceiveWindow:     uint64(option.ReceiveWindowConn),
+		MaxStreamReceiveWindow:         uint64(option.ReceiveWindowConn),
+		InitialConnectionReceiveWindow: uint64(option.ReceiveWindow),
+		MaxConnectionReceiveWindow:     uint64(option.ReceiveWindow),
+		KeepAlivePeriod:                10 * time.Second,
+		DisablePathMTUDiscovery:        option.DisableMTUDiscovery,
+		EnableDatagrams:                true,
+	}
+	if option.ObfsProtocol != "" {
+		option.Protocol = option.ObfsProtocol
+	}
+	if option.Protocol == "" {
+		option.Protocol = DefaultProtocol
+	}
+	if option.HopInterval == 0 {
+		option.HopInterval = DefaultHopInterval
+	}
+	hopInterval := time.Duration(int64(option.HopInterval)) * time.Second
+	if option.ReceiveWindow == 0 {
+		quicConfig.InitialStreamReceiveWindow = DefaultStreamReceiveWindow / 10
+		quicConfig.MaxStreamReceiveWindow = DefaultStreamReceiveWindow
+	}
+	if option.ReceiveWindow == 0 {
+		quicConfig.InitialConnectionReceiveWindow = DefaultConnectionReceiveWindow / 10
+		quicConfig.MaxConnectionReceiveWindow = DefaultConnectionReceiveWindow
+	}
+	if !quicConfig.DisablePathMTUDiscovery && pmtud_fix.DisablePathMTUDiscovery {
+		log.Infoln("hysteria: Path MTU Discovery is not yet supported on this platform")
+	}
+
+	var auth = []byte(option.AuthString)
+	if option.Auth != "" {
+		auth, err = base64.StdEncoding.DecodeString(option.Auth)
+		if err != nil {
+			return nil, err
+		}
+	}
+	var obfuscator obfs.Obfuscator
+	if len(option.Obfs) > 0 {
+		obfuscator = obfs.NewXPlusObfuscator([]byte(option.Obfs))
+	}
+
+	up, down, err := option.Speed()
+	if err != nil {
+		return nil, err
+	}
+	if option.UpSpeed != 0 {
+		up = uint64(option.UpSpeed * mbpsToBps)
+	}
+	if option.DownSpeed != 0 {
+		down = uint64(option.DownSpeed * mbpsToBps)
+	}
+	client, err := core.NewClient(
+		addr, ports, option.Protocol, auth, tlsConfig, quicConfig, clientTransport, up, down, func(refBPS uint64) congestion.CongestionControl {
+			return hyCongestion.NewBrutalSender(congestion.ByteCount(refBPS))
+		}, obfuscator, hopInterval, option.FastOpen,
+	)
+	if err != nil {
+		return nil, fmt.Errorf("hysteria %s create error: %w", addr, err)
+	}
+	return &Hysteria{
+		Base: &Base{
+			name:   option.Name,
+			addr:   addr,
+			tp:     C.Hysteria,
+			udp:    true,
+			tfo:    option.FastOpen,
+			iface:  option.Interface,
+			rmark:  option.RoutingMark,
+			prefer: C.NewDNSPrefer(option.IPVersion),
+		},
+		client: client,
+	}, nil
+}
+
+func stringToBps(s string) uint64 {
+	if s == "" {
+		return 0
+	}
+
+	// when have not unit, use Mbps
+	if v, err := strconv.Atoi(s); err == nil {
+		return stringToBps(fmt.Sprintf("%d Mbps", v))
+	}
+
+	m := rateStringRegexp.FindStringSubmatch(s)
+	if m == nil {
+		return 0
+	}
+	var n uint64
+	switch m[2] {
+	case "K":
+		n = 1 << 10
+	case "M":
+		n = 1 << 20
+	case "G":
+		n = 1 << 30
+	case "T":
+		n = 1 << 40
+	default:
+		n = 1
+	}
+	v, _ := strconv.ParseUint(m[1], 10, 64)
+	n = v * n
+	if m[3] == "b" {
+		// Bits, need to convert to bytes
+		n = n >> 3
+	}
+	return n
+}
+
+type hyPacketConn struct {
+	core.UDPConn
+}
+
+func (c *hyPacketConn) ReadFrom(p []byte) (n int, addr net.Addr, err error) {
+	b, addrStr, err := c.UDPConn.ReadFrom()
+	if err != nil {
+		return
+	}
+	n = copy(p, b)
+	addr = M.ParseSocksaddr(addrStr).UDPAddr()
+	return
+}
+
+func (c *hyPacketConn) WriteTo(p []byte, addr net.Addr) (n int, err error) {
+	err = c.UDPConn.WriteTo(p, M.SocksaddrFromNet(addr).String())
+	if err != nil {
+		return
+	}
+	n = len(p)
+	return
+}
+
+type hyDialerWithContext struct {
+	hyDialer   func(network string) (net.PacketConn, error)
+	ctx        context.Context
+	remoteAddr func(host string) (net.Addr, error)
+}
+
+func (h *hyDialerWithContext) ListenPacket(rAddr net.Addr) (net.PacketConn, error) {
+	network := "udp"
+	if addrPort, err := netip.ParseAddrPort(rAddr.String()); err == nil {
+		network = dialer.ParseNetwork(network, addrPort.Addr())
+	}
+	return h.hyDialer(network)
+}
+
+func (h *hyDialerWithContext) Context() context.Context {
+	return h.ctx
+}
+
+func (h *hyDialerWithContext) RemoteAddr(host string) (net.Addr, error) {
+	return h.remoteAddr(host)
+}

adapter/outbound/reject.go

@@ -30,6 +30,18 @@ func NewReject() *Reject {
 			name:   "REJECT",
 			tp:     C.Reject,
 			udp:    true,
+			prefer: C.DualStack,
+		},
+	}
+}
+
+func NewPass() *Reject {
+	return &Reject{
+		Base: &Base{
+			name:   "PASS",
+			tp:     C.Pass,
+			udp:    true,
+			prefer: C.DualStack,
 		},
 	}
 }
@@ -41,6 +53,9 @@ func (rw *nopConn) Read(b []byte) (int, error) {
 }
 
 func (rw *nopConn) Write(b []byte) (int, error) {
+	if len(b) == 0 {
+		return 0, nil
+	}
 	return 0, io.EOF
 }
 

adapter/outbound/shadowsocks.go

@@ -11,20 +11,27 @@ import (
 	"github.com/Dreamacro/clash/component/dialer"
 	C "github.com/Dreamacro/clash/constant"
 	obfs "github.com/Dreamacro/clash/transport/simple-obfs"
+	shadowtls "github.com/Dreamacro/clash/transport/sing-shadowtls"
 	"github.com/Dreamacro/clash/transport/socks5"
 	v2rayObfs "github.com/Dreamacro/clash/transport/v2ray-plugin"
 
-	"github.com/Dreamacro/go-shadowsocks2/core"
+	shadowsocks "github.com/metacubex/sing-shadowsocks"
+	"github.com/metacubex/sing-shadowsocks/shadowimpl"
+	"github.com/sagernet/sing/common/bufio"
+	M "github.com/sagernet/sing/common/metadata"
+	"github.com/sagernet/sing/common/uot"
 )
 
 type ShadowSocks struct {
 	*Base
-	cipher core.Cipher
+	method shadowsocks.Method
 
+	option *ShadowSocksOption
 	// obfs
 	obfsMode        string
 	obfsOption      *simpleObfsOption
 	v2rayOption     *v2rayObfs.Option
+	shadowTLSOption *shadowtls.ShadowTLSOption
 }
 
 type ShadowSocksOption struct {
@@ -37,6 +44,7 @@ type ShadowSocksOption struct {
 	UDP        bool           `proxy:"udp,omitempty"`
 	Plugin     string         `proxy:"plugin,omitempty"`
 	PluginOpts map[string]any `proxy:"plugin-opts,omitempty"`
+	UDPOverTCP bool           `proxy:"udp-over-tcp,omitempty"`
 }
 
 type simpleObfsOption struct {
@@ -49,13 +57,38 @@ type v2rayObfsOption struct {
 	Host           string            `obfs:"host,omitempty"`
 	Path           string            `obfs:"path,omitempty"`
 	TLS            bool              `obfs:"tls,omitempty"`
+	Fingerprint    string            `obfs:"fingerprint,omitempty"`
 	Headers        map[string]string `obfs:"headers,omitempty"`
 	SkipCertVerify bool              `obfs:"skip-cert-verify,omitempty"`
 	Mux            bool              `obfs:"mux,omitempty"`
 }
 
+type shadowTLSOption struct {
+	Password          string `obfs:"password"`
+	Host              string `obfs:"host"`
+	Fingerprint       string `obfs:"fingerprint,omitempty"`
+	ClientFingerprint string `obfs:"client-fingerprint,omitempty"`
+	SkipCertVerify    bool   `obfs:"skip-cert-verify,omitempty"`
+	Version           int    `obfs:"version,omitempty"`
+}
+
 // StreamConn implements C.ProxyAdapter
 func (ss *ShadowSocks) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
+	switch ss.obfsMode {
+	case shadowtls.Mode:
+		// fix tls handshake not timeout
+		ctx, cancel := context.WithTimeout(context.Background(), C.DefaultTLSTimeout)
+		defer cancel()
+		var err error
+		c, err = shadowtls.NewShadowTLS(ctx, c, ss.shadowTLSOption)
+		if err != nil {
+			return nil, err
+		}
+	}
+	return ss.streamConn(c, metadata)
+}
+
+func (ss *ShadowSocks) streamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 	switch ss.obfsMode {
 	case "tls":
 		c = obfs.NewTLSObfs(c, ss.obfsOption.Host)
@@ -69,53 +102,96 @@ func (ss *ShadowSocks) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, e
 			return nil, fmt.Errorf("%s connect error: %w", ss.addr, err)
 		}
 	}
-	c = ss.cipher.StreamConn(c)
+	if metadata.NetWork == C.UDP && ss.option.UDPOverTCP {
-	_, err := c.Write(serializesSocksAddr(metadata))
+		return ss.method.DialEarlyConn(c, M.ParseSocksaddr(uot.UOTMagicAddress+":443")), nil
-	return c, err
+	}
+	return ss.method.DialEarlyConn(c, M.ParseSocksaddr(metadata.RemoteAddress())), nil
 }
 
 // DialContext implements C.ProxyAdapter
 func (ss *ShadowSocks) DialContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (_ C.Conn, err error) {
-	c, err := dialer.DialContext(ctx, "tcp", ss.addr, ss.Base.DialOptions(opts...)...)
+	return ss.DialContextWithDialer(ctx, dialer.NewDialer(ss.Base.DialOptions(opts...)...), metadata)
+}
+
+// DialContextWithDialer implements C.ProxyAdapter
+func (ss *ShadowSocks) DialContextWithDialer(ctx context.Context, dialer C.Dialer, metadata *C.Metadata) (_ C.Conn, err error) {
+	c, err := dialer.DialContext(ctx, "tcp", ss.addr)
 	if err != nil {
 		return nil, fmt.Errorf("%s connect error: %w", ss.addr, err)
 	}
 	tcpKeepAlive(c)
 
-	defer safeConnClose(c, err)
+	defer func(c net.Conn) {
+		safeConnClose(c, err)
+	}(c)
 
-	c, err = ss.StreamConn(c, metadata)
+	switch ss.obfsMode {
+	case shadowtls.Mode:
+		c, err = shadowtls.NewShadowTLS(ctx, c, ss.shadowTLSOption)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	c, err = ss.streamConn(c, metadata)
 	return NewConn(c, ss), err
 }
 
 // ListenPacketContext implements C.ProxyAdapter
 func (ss *ShadowSocks) ListenPacketContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (C.PacketConn, error) {
-	pc, err := dialer.ListenPacket(ctx, "udp", "", ss.Base.DialOptions(opts...)...)
+	return ss.ListenPacketWithDialer(ctx, dialer.NewDialer(ss.Base.DialOptions(opts...)...), metadata)
+}
+
+// ListenPacketWithDialer implements C.ProxyAdapter
+func (ss *ShadowSocks) ListenPacketWithDialer(ctx context.Context, dialer C.Dialer, metadata *C.Metadata) (_ C.PacketConn, err error) {
+	if ss.option.UDPOverTCP {
+		tcpConn, err := ss.DialContextWithDialer(ctx, dialer, metadata)
+		if err != nil {
+			return nil, err
+		}
+		return newPacketConn(uot.NewClientConn(tcpConn), ss), nil
+	}
+	addr, err := resolveUDPAddrWithPrefer(ctx, "udp", ss.addr, ss.prefer)
 	if err != nil {
 		return nil, err
 	}
 
-	addr, err := resolveUDPAddr("udp", ss.addr)
+	pc, err := dialer.ListenPacket(ctx, "udp", "", addr.AddrPort())
 	if err != nil {
-		pc.Close()
 		return nil, err
 	}
+	pc = ss.method.DialPacketConn(&bufio.BindPacketConn{PacketConn: pc, Addr: addr})
+	return newPacketConn(pc, ss), nil
+}
 
-	pc = ss.cipher.PacketConn(pc)
+// SupportWithDialer implements C.ProxyAdapter
-	return newPacketConn(&ssPacketConn{PacketConn: pc, rAddr: addr}, ss), nil
+func (ss *ShadowSocks) SupportWithDialer() bool {
+	return true
+}
+
+// ListenPacketOnStreamConn implements C.ProxyAdapter
+func (ss *ShadowSocks) ListenPacketOnStreamConn(c net.Conn, metadata *C.Metadata) (_ C.PacketConn, err error) {
+	if ss.option.UDPOverTCP {
+		return newPacketConn(uot.NewClientConn(c), ss), nil
+	}
+	return nil, errors.New("no support")
+}
+
+// SupportUOT implements C.ProxyAdapter
+func (ss *ShadowSocks) SupportUOT() bool {
+	return ss.option.UDPOverTCP
 }
 
 func NewShadowSocks(option ShadowSocksOption) (*ShadowSocks, error) {
 	addr := net.JoinHostPort(option.Server, strconv.Itoa(option.Port))
-	cipher := option.Cipher
+	method, err := shadowimpl.FetchMethod(option.Cipher, option.Password)
-	password := option.Password
-	ciph, err := core.PickCipher(cipher, nil, password)
 	if err != nil {
 		return nil, fmt.Errorf("ss %s initialize error: %w", addr, err)
 	}
 
 	var v2rayOption *v2rayObfs.Option
 	var obfsOption *simpleObfsOption
+	var shadowTLSOpt *shadowtls.ShadowTLSOption
 	obfsMode := ""
 
 	decoder := structure.NewDecoder(structure.Option{TagName: "obfs", WeaklyTypedInput: true})
@@ -151,6 +227,23 @@ func NewShadowSocks(option ShadowSocksOption) (*ShadowSocks, error) {
 			v2rayOption.TLS = true
 			v2rayOption.SkipCertVerify = opts.SkipCertVerify
 		}
+	} else if option.Plugin == shadowtls.Mode {
+		obfsMode = shadowtls.Mode
+		opt := &shadowTLSOption{
+			Version: 2,
+		}
+		if err := decoder.Decode(option.PluginOpts, opt); err != nil {
+			return nil, fmt.Errorf("ss %s initialize shadow-tls-plugin error: %w", addr, err)
+		}
+
+		shadowTLSOpt = &shadowtls.ShadowTLSOption{
+			Password:          opt.Password,
+			Host:              opt.Host,
+			Fingerprint:       opt.Fingerprint,
+			ClientFingerprint: opt.ClientFingerprint,
+			SkipCertVerify:    opt.SkipCertVerify,
+			Version:           opt.Version,
+		}
 	}
 
 	return &ShadowSocks{
@@ -159,14 +252,18 @@ func NewShadowSocks(option ShadowSocksOption) (*ShadowSocks, error) {
 			addr:   addr,
 			tp:     C.Shadowsocks,
 			udp:    option.UDP,
+			tfo:    option.TFO,
 			iface:  option.Interface,
 			rmark:  option.RoutingMark,
+			prefer: C.NewDNSPrefer(option.IPVersion),
 		},
-		cipher: ciph,
+		method: method,
 
+		option:          &option,
 		obfsMode:        obfsMode,
 		v2rayOption:     v2rayOption,
 		obfsOption:      obfsOption,
+		shadowTLSOption: shadowTLSOpt,
 	}, nil
 }
 

adapter/outbound/shadowsocksr.go

@@ -8,12 +8,11 @@ import (
 
 	"github.com/Dreamacro/clash/component/dialer"
 	C "github.com/Dreamacro/clash/constant"
+	"github.com/Dreamacro/clash/transport/shadowsocks/core"
+	"github.com/Dreamacro/clash/transport/shadowsocks/shadowaead"
+	"github.com/Dreamacro/clash/transport/shadowsocks/shadowstream"
 	"github.com/Dreamacro/clash/transport/ssr/obfs"
 	"github.com/Dreamacro/clash/transport/ssr/protocol"
-
-	"github.com/Dreamacro/go-shadowsocks2/core"
-	"github.com/Dreamacro/go-shadowsocks2/shadowaead"
-	"github.com/Dreamacro/go-shadowsocks2/shadowstream"
 )
 
 type ShadowSocksR struct {
@@ -61,13 +60,20 @@ func (ssr *ShadowSocksR) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn,
 
 // DialContext implements C.ProxyAdapter
 func (ssr *ShadowSocksR) DialContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (_ C.Conn, err error) {
-	c, err := dialer.DialContext(ctx, "tcp", ssr.addr, ssr.Base.DialOptions(opts...)...)
+	return ssr.DialContextWithDialer(ctx, dialer.NewDialer(ssr.Base.DialOptions(opts...)...), metadata)
+}
+
+// DialContextWithDialer implements C.ProxyAdapter
+func (ssr *ShadowSocksR) DialContextWithDialer(ctx context.Context, dialer C.Dialer, metadata *C.Metadata) (_ C.Conn, err error) {
+	c, err := dialer.DialContext(ctx, "tcp", ssr.addr)
 	if err != nil {
 		return nil, fmt.Errorf("%s connect error: %w", ssr.addr, err)
 	}
 	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
@@ -75,14 +81,18 @@ func (ssr *ShadowSocksR) DialContext(ctx context.Context, metadata *C.Metadata,
 
 // ListenPacketContext implements C.ProxyAdapter
 func (ssr *ShadowSocksR) ListenPacketContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (C.PacketConn, error) {
-	pc, err := dialer.ListenPacket(ctx, "udp", "", ssr.Base.DialOptions(opts...)...)
+	return ssr.ListenPacketWithDialer(ctx, dialer.NewDialer(ssr.Base.DialOptions(opts...)...), metadata)
+}
+
+// ListenPacketWithDialer implements C.ProxyAdapter
+func (ssr *ShadowSocksR) ListenPacketWithDialer(ctx context.Context, dialer C.Dialer, metadata *C.Metadata) (_ C.PacketConn, err error) {
+	addr, err := resolveUDPAddrWithPrefer(ctx, "udp", ssr.addr, ssr.prefer)
 	if err != nil {
 		return nil, err
 	}
 
-	addr, err := resolveUDPAddr("udp", ssr.addr)
+	pc, err := dialer.ListenPacket(ctx, "udp", "", addr.AddrPort())
 	if err != nil {
-		pc.Close()
 		return nil, err
 	}
 
@@ -91,7 +101,18 @@ func (ssr *ShadowSocksR) ListenPacketContext(ctx context.Context, metadata *C.Me
 	return newPacketConn(&ssPacketConn{PacketConn: pc, rAddr: addr}, ssr), nil
 }
 
+// SupportWithDialer implements C.ProxyAdapter
+func (ssr *ShadowSocksR) SupportWithDialer() bool {
+	return true
+}
+
 func NewShadowSocksR(option ShadowSocksROption) (*ShadowSocksR, error) {
+	// SSR protocol compatibility
+	// https://github.com/Dreamacro/clash/pull/2056
+	if option.Cipher == "none" {
+		option.Cipher = "dummy"
+	}
+
 	addr := net.JoinHostPort(option.Server, strconv.Itoa(option.Port))
 	cipher := option.Cipher
 	password := option.Password
@@ -103,13 +124,14 @@ func NewShadowSocksR(option ShadowSocksROption) (*ShadowSocksR, error) {
 		ivSize int
 		key    []byte
 	)
+
 	if option.Cipher == "dummy" {
 		ivSize = 0
 		key = core.Kdf(option.Password, 16)
 	} else {
 		ciph, ok := coreCiph.(*core.StreamCipher)
 		if !ok {
-			return nil, fmt.Errorf("%s is not dummy or a supported stream cipher in ssr", cipher)
+			return nil, fmt.Errorf("%s is not none or a supported stream cipher in ssr", cipher)
 		}
 		ivSize = ciph.IVSize()
 		key = ciph.Key
@@ -141,8 +163,10 @@ func NewShadowSocksR(option ShadowSocksROption) (*ShadowSocksR, error) {
 			addr:   addr,
 			tp:     C.ShadowsocksR,
 			udp:    option.UDP,
+			tfo:    option.TFO,
 			iface:  option.Interface,
 			rmark:  option.RoutingMark,
+			prefer: C.NewDNSPrefer(option.IPVersion),
 		},
 		cipher:   coreCiph,
 		obfs:     obfs,

adapter/outbound/snell.go

@@ -53,6 +53,10 @@ func streamConn(c net.Conn, option streamOption) *snell.Snell {
 // StreamConn implements C.ProxyAdapter
 func (s *Snell) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 	c = streamConn(c, streamOption{s.psk, s.version, s.addr, s.obfsOption})
+	if metadata.NetWork == C.UDP {
+		err := snell.WriteUDPHeader(c, s.version)
+		return c, err
+	}
 	port, _ := strconv.ParseUint(metadata.DstPort, 10, 16)
 	err := snell.WriteHeader(c, metadata.String(), uint(port), s.version)
 	return c, err
@@ -74,13 +78,20 @@ func (s *Snell) DialContext(ctx context.Context, metadata *C.Metadata, opts ...d
 		return NewConn(c, s), err
 	}
 
-	c, err := dialer.DialContext(ctx, "tcp", s.addr, s.Base.DialOptions(opts...)...)
+	return s.DialContextWithDialer(ctx, dialer.NewDialer(s.Base.DialOptions(opts...)...), metadata)
+}
+
+// DialContextWithDialer implements C.ProxyAdapter
+func (s *Snell) DialContextWithDialer(ctx context.Context, dialer C.Dialer, metadata *C.Metadata) (_ C.Conn, err error) {
+	c, err := dialer.DialContext(ctx, "tcp", s.addr)
 	if err != nil {
 		return nil, fmt.Errorf("%s connect error: %w", s.addr, err)
 	}
 	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
@@ -88,7 +99,12 @@ func (s *Snell) DialContext(ctx context.Context, metadata *C.Metadata, opts ...d
 
 // ListenPacketContext implements C.ProxyAdapter
 func (s *Snell) ListenPacketContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (C.PacketConn, error) {
-	c, err := dialer.DialContext(ctx, "tcp", s.addr, s.Base.DialOptions(opts...)...)
+	return s.ListenPacketWithDialer(ctx, dialer.NewDialer(s.Base.DialOptions(opts...)...), metadata)
+}
+
+// ListenPacketWithDialer implements C.ProxyAdapter
+func (s *Snell) ListenPacketWithDialer(ctx context.Context, dialer C.Dialer, metadata *C.Metadata) (C.PacketConn, error) {
+	c, err := dialer.DialContext(ctx, "tcp", s.addr)
 	if err != nil {
 		return nil, err
 	}
@@ -104,6 +120,16 @@ func (s *Snell) ListenPacketContext(ctx context.Context, metadata *C.Metadata, o
 	return newPacketConn(pc, s), nil
 }
 
+// SupportWithDialer implements C.ProxyAdapter
+func (s *Snell) SupportWithDialer() bool {
+	return true
+}
+
+// SupportUOT implements C.ProxyAdapter
+func (s *Snell) SupportUOT() bool {
+	return true
+}
+
 func NewSnell(option SnellOption) (*Snell, error) {
 	addr := net.JoinHostPort(option.Server, strconv.Itoa(option.Port))
 	psk := []byte(option.Psk)
@@ -141,8 +167,10 @@ func NewSnell(option SnellOption) (*Snell, error) {
 			addr:   addr,
 			tp:     C.Snell,
 			udp:    option.UDP,
+			tfo:    option.TFO,
 			iface:  option.Interface,
 			rmark:  option.RoutingMark,
+			prefer: C.NewDNSPrefer(option.IPVersion),
 		},
 		psk:        psk,
 		obfsOption: obfsOption,

adapter/outbound/socks5.go

@@ -10,6 +10,7 @@ import (
 	"strconv"
 
 	"github.com/Dreamacro/clash/component/dialer"
+	tlsC "github.com/Dreamacro/clash/component/tls"
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/transport/socks5"
 )
@@ -33,13 +34,16 @@ type Socks5Option struct {
 	TLS            bool   `proxy:"tls,omitempty"`
 	UDP            bool   `proxy:"udp,omitempty"`
 	SkipCertVerify bool   `proxy:"skip-cert-verify,omitempty"`
+	Fingerprint    string `proxy:"fingerprint,omitempty"`
 }
 
 // StreamConn implements C.ProxyAdapter
 func (ss *Socks5) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 	if ss.tls {
 		cc := tls.Client(c, ss.tlsConfig)
-		err := cc.Handshake()
+		ctx, cancel := context.WithTimeout(context.Background(), C.DefaultTLSTimeout)
+		defer cancel()
+		err := cc.HandshakeContext(ctx)
 		c = cc
 		if err != nil {
 			return nil, fmt.Errorf("%s connect error: %w", ss.addr, err)
@@ -61,13 +65,20 @@ func (ss *Socks5) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error)
 
 // DialContext implements C.ProxyAdapter
 func (ss *Socks5) DialContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (_ C.Conn, err error) {
-	c, err := dialer.DialContext(ctx, "tcp", ss.addr, ss.Base.DialOptions(opts...)...)
+	return ss.DialContextWithDialer(ctx, dialer.NewDialer(ss.Base.DialOptions(opts...)...), metadata)
+}
+
+// DialContextWithDialer implements C.ProxyAdapter
+func (ss *Socks5) DialContextWithDialer(ctx context.Context, dialer C.Dialer, metadata *C.Metadata) (_ C.Conn, err error) {
+	c, err := dialer.DialContext(ctx, "tcp", ss.addr)
 	if err != nil {
 		return nil, fmt.Errorf("%s connect error: %w", ss.addr, err)
 	}
 	tcpKeepAlive(c)
 
-	defer safeConnClose(c, err)
+	defer func(c net.Conn) {
+		safeConnClose(c, err)
+	}(c)
 
 	c, err = ss.StreamConn(c, metadata)
 	if err != nil {
@@ -77,6 +88,11 @@ func (ss *Socks5) DialContext(ctx context.Context, metadata *C.Metadata, opts ..
 	return NewConn(c, ss), nil
 }
 
+// SupportWithDialer implements C.ProxyAdapter
+func (ss *Socks5) SupportWithDialer() bool {
+	return true
+}
+
 // ListenPacketContext implements C.ProxyAdapter
 func (ss *Socks5) ListenPacketContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (_ C.PacketConn, err error) {
 	c, err := dialer.DialContext(ctx, "tcp", ss.addr, ss.Base.DialOptions(opts...)...)
@@ -87,11 +103,15 @@ func (ss *Socks5) ListenPacketContext(ctx context.Context, metadata *C.Metadata,
 
 	if ss.tls {
 		cc := tls.Client(c, ss.tlsConfig)
-		err = cc.Handshake()
+		ctx, cancel := context.WithTimeout(context.Background(), C.DefaultTLSTimeout)
+		defer cancel()
+		err = cc.HandshakeContext(ctx)
 		c = cc
 	}
 
-	defer safeConnClose(c, err)
+	defer func(c net.Conn) {
+		safeConnClose(c, err)
+	}(c)
 
 	tcpKeepAlive(c)
 	var user *socks5.User
@@ -108,7 +128,21 @@ func (ss *Socks5) ListenPacketContext(ctx context.Context, metadata *C.Metadata,
 		return
 	}
 
-	pc, err := dialer.ListenPacket(ctx, "udp", "", ss.Base.DialOptions(opts...)...)
+	// Support unspecified UDP bind address.
+	bindUDPAddr := bindAddr.UDPAddr()
+	if bindUDPAddr == nil {
+		err = errors.New("invalid UDP bind address")
+		return
+	} else if bindUDPAddr.IP.IsUnspecified() {
+		serverAddr, err := resolveUDPAddr(ctx, "udp", ss.Addr())
+		if err != nil {
+			return nil, err
+		}
+
+		bindUDPAddr.IP = serverAddr.IP
+	}
+
+	pc, err := dialer.ListenPacket(ctx, dialer.ParseNetwork("udp", bindUDPAddr.AddrPort().Addr()), "", ss.Base.DialOptions(opts...)...)
 	if err != nil {
 		return
 	}
@@ -121,30 +155,25 @@ func (ss *Socks5) ListenPacketContext(ctx context.Context, metadata *C.Metadata,
 		pc.Close()
 	}()
 
-	// Support unspecified UDP bind address.
-	bindUDPAddr := bindAddr.UDPAddr()
-	if bindUDPAddr == nil {
-		err = errors.New("invalid UDP bind address")
-		return
-	} else if bindUDPAddr.IP.IsUnspecified() {
-		serverAddr, err := resolveUDPAddr("udp", ss.Addr())
-		if err != nil {
-			return nil, err
-		}
-
-		bindUDPAddr.IP = serverAddr.IP
-	}
-
 	return newPacketConn(&socksPacketConn{PacketConn: pc, rAddr: bindUDPAddr, tcpConn: c}, ss), nil
 }
 
-func NewSocks5(option Socks5Option) *Socks5 {
+func NewSocks5(option Socks5Option) (*Socks5, error) {
 	var tlsConfig *tls.Config
 	if option.TLS {
 		tlsConfig = &tls.Config{
 			InsecureSkipVerify: option.SkipCertVerify,
 			ServerName:         option.Server,
 		}
+
+		if len(option.Fingerprint) == 0 {
+			tlsConfig = tlsC.GetGlobalTLSConfig(tlsConfig)
+		} else {
+			var err error
+			if tlsConfig, err = tlsC.GetSpecifiedFingerprintTLSConfig(tlsConfig, option.Fingerprint); err != nil {
+				return nil, err
+			}
+		}
 	}
 
 	return &Socks5{
@@ -153,15 +182,17 @@ func NewSocks5(option Socks5Option) *Socks5 {
 			addr:   net.JoinHostPort(option.Server, strconv.Itoa(option.Port)),
 			tp:     C.Socks5,
 			udp:    option.UDP,
+			tfo:    option.TFO,
 			iface:  option.Interface,
 			rmark:  option.RoutingMark,
+			prefer: C.NewDNSPrefer(option.IPVersion),
 		},
 		user:           option.UserName,
 		pass:           option.Password,
 		tls:            option.TLS,
 		skipCertVerify: option.SkipCertVerify,
 		tlsConfig:      tlsConfig,
-	}
+	}, nil
 }
 
 type socksPacketConn struct {

adapter/outbound/trojan.go

@@ -8,13 +8,13 @@ import (
 	"net/http"
 	"strconv"
 
+	N "github.com/Dreamacro/clash/common/net"
 	"github.com/Dreamacro/clash/component/dialer"
+	tlsC "github.com/Dreamacro/clash/component/tls"
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/transport/gun"
 	"github.com/Dreamacro/clash/transport/trojan"
 	"github.com/Dreamacro/clash/transport/vless"
-
-	"golang.org/x/net/http2"
 )
 
 type Trojan struct {
@@ -25,7 +25,7 @@ type Trojan struct {
 	// for gun mux
 	gunTLSConfig *tls.Config
 	gunConfig    *gun.Config
-	transport    *http2.Transport
+	transport    *gun.TransportWrap
 }
 
 type TrojanOption struct {
@@ -37,12 +37,14 @@ type TrojanOption struct {
 	ALPN              []string    `proxy:"alpn,omitempty"`
 	SNI               string      `proxy:"sni,omitempty"`
 	SkipCertVerify    bool        `proxy:"skip-cert-verify,omitempty"`
+	Fingerprint       string      `proxy:"fingerprint,omitempty"`
 	UDP               bool        `proxy:"udp,omitempty"`
 	Network           string      `proxy:"network,omitempty"`
 	GrpcOpts          GrpcOptions `proxy:"grpc-opts,omitempty"`
 	WSOpts            WSOptions   `proxy:"ws-opts,omitempty"`
 	Flow              string      `proxy:"flow,omitempty"`
 	FlowShow          bool        `proxy:"flow-show,omitempty"`
+	ClientFingerprint string      `proxy:"client-fingerprint,omitempty"`
 }
 
 func (t *Trojan) plainStream(c net.Conn) (net.Conn, error) {
@@ -75,6 +77,11 @@ func (t *Trojan) plainStream(c net.Conn) (net.Conn, error) {
 // StreamConn implements C.ProxyAdapter
 func (t *Trojan) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 	var err error
+
+	if tlsC.HaveGlobalFingerprint() && len(t.option.ClientFingerprint) == 0 {
+		t.option.ClientFingerprint = tlsC.GetGlobalFingerprint()
+	}
+
 	if t.transport != nil {
 		c, err = gun.StreamGunWithConn(c, t.gunTLSConfig, t.gunConfig)
 	} else {
@@ -90,8 +97,12 @@ func (t *Trojan) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error)
 		return nil, err
 	}
 
-	err = t.instance.WriteHeader(c, trojan.CommandTCP, serializesSocksAddr(metadata))
+	if metadata.NetWork == C.UDP {
+		err = t.instance.WriteHeader(c, trojan.CommandUDP, serializesSocksAddr(metadata))
 		return c, err
+	}
+	err = t.instance.WriteHeader(c, trojan.CommandTCP, serializesSocksAddr(metadata))
+	return N.NewExtendedConn(c), err
 }
 
 // DialContext implements C.ProxyAdapter
@@ -116,14 +127,20 @@ func (t *Trojan) DialContext(ctx context.Context, metadata *C.Metadata, opts ...
 
 		return NewConn(c, t), nil
 	}
+	return t.DialContextWithDialer(ctx, dialer.NewDialer(t.Base.DialOptions(opts...)...), metadata)
+}
 
-	c, err := dialer.DialContext(ctx, "tcp", t.addr, t.Base.DialOptions(opts...)...)
+// DialContextWithDialer implements C.ProxyAdapter
+func (t *Trojan) DialContextWithDialer(ctx context.Context, dialer C.Dialer, metadata *C.Metadata) (_ C.Conn, err error) {
+	c, err := dialer.DialContext(ctx, "tcp", t.addr)
 	if err != nil {
 		return nil, fmt.Errorf("%s connect error: %w", t.addr, err)
 	}
 	tcpKeepAlive(c)
 
-	defer safeConnClose(c, err)
+	defer func(c net.Conn) {
+		safeConnClose(c, err)
+	}(c)
 
 	c, err = t.StreamConn(c, metadata)
 	if err != nil {
@@ -143,19 +160,34 @@ 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) {
-	} else {
+			safeConnClose(c, err)
-		c, err = dialer.DialContext(ctx, "tcp", t.addr, t.Base.DialOptions(opts...)...)
+		}(c)
+		err = t.instance.WriteHeader(c, trojan.CommandUDP, serializesSocksAddr(metadata))
+		if err != nil {
+			return nil, err
+		}
+
+		pc := t.instance.PacketConn(c)
+		return newPacketConn(pc, t), err
+	}
+	return t.ListenPacketWithDialer(ctx, dialer.NewDialer(t.Base.DialOptions(opts...)...), metadata)
+}
+
+// ListenPacketWithDialer implements C.ProxyAdapter
+func (t *Trojan) ListenPacketWithDialer(ctx context.Context, dialer C.Dialer, metadata *C.Metadata) (_ C.PacketConn, err error) {
+	c, err := dialer.DialContext(ctx, "tcp", t.addr)
 	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 {
 		return nil, fmt.Errorf("%s connect error: %w", t.addr, err)
 	}
-	}
 
 	err = t.instance.WriteHeader(c, trojan.CommandUDP, serializesSocksAddr(metadata))
 	if err != nil {
@@ -166,6 +198,22 @@ func (t *Trojan) ListenPacketContext(ctx context.Context, metadata *C.Metadata,
 	return newPacketConn(pc, t), err
 }
 
+// SupportWithDialer implements C.ProxyAdapter
+func (t *Trojan) SupportWithDialer() bool {
+	return true
+}
+
+// ListenPacketOnStreamConn implements C.ProxyAdapter
+func (t *Trojan) ListenPacketOnStreamConn(c net.Conn, metadata *C.Metadata) (_ C.PacketConn, err error) {
+	pc := t.instance.PacketConn(c)
+	return newPacketConn(pc, t), err
+}
+
+// SupportUOT implements C.ProxyAdapter
+func (t *Trojan) SupportUOT() bool {
+	return true
+}
+
 func NewTrojan(option TrojanOption) (*Trojan, error) {
 	addr := net.JoinHostPort(option.Server, strconv.Itoa(option.Port))
 
@@ -175,9 +223,13 @@ func NewTrojan(option TrojanOption) (*Trojan, error) {
 		ServerName:        option.Server,
 		SkipCertVerify:    option.SkipCertVerify,
 		FlowShow:          option.FlowShow,
+		Fingerprint:       option.Fingerprint,
+		ClientFingerprint: option.ClientFingerprint,
 	}
 
-	if option.Network != "ws" && len(option.Flow) >= 16 {
+	switch option.Network {
+	case "", "tcp":
+		if len(option.Flow) >= 16 {
 			option.Flow = option.Flow[:16]
 			switch option.Flow {
 			case vless.XRO, vless.XRD, vless.XRS:
@@ -186,6 +238,7 @@ func NewTrojan(option TrojanOption) (*Trojan, error) {
 				return nil, fmt.Errorf("unsupported xtls flow type: %s", option.Flow)
 			}
 		}
+	}
 
 	if option.SNI != "" {
 		tOption.ServerName = option.SNI
@@ -197,8 +250,10 @@ func NewTrojan(option TrojanOption) (*Trojan, error) {
 			addr:   addr,
 			tp:     C.Trojan,
 			udp:    option.UDP,
+			tfo:    option.TFO,
 			iface:  option.Interface,
 			rmark:  option.RoutingMark,
+			prefer: C.NewDNSPrefer(option.IPVersion),
 		},
 		instance: trojan.New(tOption),
 		option:   &option,
@@ -221,11 +276,16 @@ func NewTrojan(option TrojanOption) (*Trojan, error) {
 			ServerName:         tOption.ServerName,
 		}
 
-		if t.option.Flow != "" {
+		if len(option.Fingerprint) == 0 {
-			t.transport = gun.NewHTTP2XTLSClient(dialFn, tlsConfig)
+			tlsConfig = tlsC.GetGlobalTLSConfig(tlsConfig)
 		} else {
-			t.transport = gun.NewHTTP2Client(dialFn, tlsConfig)
+			var err error
+			if tlsConfig, err = tlsC.GetSpecifiedFingerprintTLSConfig(tlsConfig, option.Fingerprint); err != nil {
+				return nil, err
 			}
+		}
+
+		t.transport = gun.NewHTTP2Client(dialFn, tlsConfig, tOption.ClientFingerprint)
 
 		t.gunTLSConfig = tlsConfig
 		t.gunConfig = &gun.Config{

adapter/outbound/tuic.go

@@ -0,0 +1,251 @@
+package outbound
+
+import (
+	"context"
+	"crypto/sha256"
+	"crypto/tls"
+	"encoding/hex"
+	"encoding/pem"
+	"fmt"
+	"math"
+	"net"
+	"os"
+	"strconv"
+	"time"
+
+	"github.com/metacubex/quic-go"
+
+	"github.com/Dreamacro/clash/component/dialer"
+	tlsC "github.com/Dreamacro/clash/component/tls"
+	C "github.com/Dreamacro/clash/constant"
+	"github.com/Dreamacro/clash/transport/tuic"
+)
+
+type Tuic struct {
+	*Base
+	client *tuic.PoolClient
+}
+
+type TuicOption struct {
+	BasicOption
+	Name                  string   `proxy:"name"`
+	Server                string   `proxy:"server"`
+	Port                  int      `proxy:"port"`
+	Token                 string   `proxy:"token"`
+	Ip                    string   `proxy:"ip,omitempty"`
+	HeartbeatInterval     int      `proxy:"heartbeat-interval,omitempty"`
+	ALPN                  []string `proxy:"alpn,omitempty"`
+	ReduceRtt             bool     `proxy:"reduce-rtt,omitempty"`
+	RequestTimeout        int      `proxy:"request-timeout,omitempty"`
+	UdpRelayMode          string   `proxy:"udp-relay-mode,omitempty"`
+	CongestionController  string   `proxy:"congestion-controller,omitempty"`
+	DisableSni            bool     `proxy:"disable-sni,omitempty"`
+	MaxUdpRelayPacketSize int      `proxy:"max-udp-relay-packet-size,omitempty"`
+
+	FastOpen            bool   `proxy:"fast-open,omitempty"`
+	MaxOpenStreams      int    `proxy:"max-open-streams,omitempty"`
+	SkipCertVerify      bool   `proxy:"skip-cert-verify,omitempty"`
+	Fingerprint         string `proxy:"fingerprint,omitempty"`
+	CustomCA            string `proxy:"ca,omitempty"`
+	CustomCAString      string `proxy:"ca-str,omitempty"`
+	ReceiveWindowConn   int    `proxy:"recv-window-conn,omitempty"`
+	ReceiveWindow       int    `proxy:"recv-window,omitempty"`
+	DisableMTUDiscovery bool   `proxy:"disable-mtu-discovery,omitempty"`
+	SNI                 string `proxy:"sni,omitempty"`
+}
+
+// DialContext implements C.ProxyAdapter
+func (t *Tuic) DialContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (C.Conn, error) {
+	return t.DialContextWithDialer(ctx, dialer.NewDialer(t.Base.DialOptions(opts...)...), metadata)
+}
+
+// DialContextWithDialer implements C.ProxyAdapter
+func (t *Tuic) DialContextWithDialer(ctx context.Context, dialer C.Dialer, metadata *C.Metadata) (C.Conn, error) {
+	conn, err := t.client.DialContextWithDialer(ctx, metadata, dialer, t.dialWithDialer)
+	if err != nil {
+		return nil, err
+	}
+	return NewConn(conn, t), err
+}
+
+// ListenPacketContext implements C.ProxyAdapter
+func (t *Tuic) ListenPacketContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (_ C.PacketConn, err error) {
+	return t.ListenPacketWithDialer(ctx, dialer.NewDialer(t.Base.DialOptions(opts...)...), metadata)
+}
+
+// ListenPacketWithDialer implements C.ProxyAdapter
+func (t *Tuic) ListenPacketWithDialer(ctx context.Context, dialer C.Dialer, metadata *C.Metadata) (_ C.PacketConn, err error) {
+	pc, err := t.client.ListenPacketWithDialer(ctx, metadata, dialer, t.dialWithDialer)
+	if err != nil {
+		return nil, err
+	}
+	return newPacketConn(pc, t), nil
+}
+
+// SupportWithDialer implements C.ProxyAdapter
+func (t *Tuic) SupportWithDialer() bool {
+	return true
+}
+
+func (t *Tuic) dial(ctx context.Context, opts ...dialer.Option) (pc net.PacketConn, addr net.Addr, err error) {
+	return t.dialWithDialer(ctx, dialer.NewDialer(opts...))
+}
+
+func (t *Tuic) dialWithDialer(ctx context.Context, dialer C.Dialer) (pc net.PacketConn, addr net.Addr, err error) {
+	udpAddr, err := resolveUDPAddrWithPrefer(ctx, "udp", t.addr, t.prefer)
+	if err != nil {
+		return nil, nil, err
+	}
+	addr = udpAddr
+	pc, err = dialer.ListenPacket(ctx, "udp", "", udpAddr.AddrPort())
+	if err != nil {
+		return nil, nil, err
+	}
+	return
+}
+
+func NewTuic(option TuicOption) (*Tuic, error) {
+	addr := net.JoinHostPort(option.Server, strconv.Itoa(option.Port))
+	serverName := option.Server
+	tlsConfig := &tls.Config{
+		ServerName:         serverName,
+		InsecureSkipVerify: option.SkipCertVerify,
+		MinVersion:         tls.VersionTLS13,
+	}
+	if option.SNI != "" {
+		tlsConfig.ServerName = option.SNI
+	}
+
+	var bs []byte
+	var err error
+	if len(option.CustomCA) > 0 {
+		bs, err = os.ReadFile(option.CustomCA)
+		if err != nil {
+			return nil, fmt.Errorf("tuic %s load ca error: %w", addr, err)
+		}
+	} else if option.CustomCAString != "" {
+		bs = []byte(option.CustomCAString)
+	}
+
+	if len(bs) > 0 {
+		block, _ := pem.Decode(bs)
+		if block == nil {
+			return nil, fmt.Errorf("CA cert is not PEM")
+		}
+
+		fpBytes := sha256.Sum256(block.Bytes)
+		if len(option.Fingerprint) == 0 {
+			option.Fingerprint = hex.EncodeToString(fpBytes[:])
+		}
+	}
+
+	if len(option.Fingerprint) != 0 {
+		var err error
+		tlsConfig, err = tlsC.GetSpecifiedFingerprintTLSConfig(tlsConfig, option.Fingerprint)
+		if err != nil {
+			return nil, err
+		}
+	} else {
+		tlsConfig = tlsC.GetGlobalTLSConfig(tlsConfig)
+	}
+
+	if len(option.ALPN) > 0 {
+		tlsConfig.NextProtos = option.ALPN
+	} else {
+		tlsConfig.NextProtos = []string{"h3"}
+	}
+
+	if option.RequestTimeout == 0 {
+		option.RequestTimeout = 8000
+	}
+
+	if option.HeartbeatInterval <= 0 {
+		option.HeartbeatInterval = 10000
+	}
+
+	if option.UdpRelayMode != "quic" {
+		option.UdpRelayMode = "native"
+	}
+
+	if option.MaxUdpRelayPacketSize == 0 {
+		option.MaxUdpRelayPacketSize = 1252
+	}
+
+	if option.MaxOpenStreams == 0 {
+		option.MaxOpenStreams = 100
+	}
+
+	// ensure server's incoming stream can handle correctly, increase to 1.1x
+	quicMaxOpenStreams := int64(option.MaxOpenStreams)
+	quicMaxOpenStreams = quicMaxOpenStreams + int64(math.Ceil(float64(quicMaxOpenStreams)/10.0))
+	quicConfig := &quic.Config{
+		InitialStreamReceiveWindow:     uint64(option.ReceiveWindowConn),
+		MaxStreamReceiveWindow:         uint64(option.ReceiveWindowConn),
+		InitialConnectionReceiveWindow: uint64(option.ReceiveWindow),
+		MaxConnectionReceiveWindow:     uint64(option.ReceiveWindow),
+		MaxIncomingStreams:             quicMaxOpenStreams,
+		MaxIncomingUniStreams:          quicMaxOpenStreams,
+		KeepAlivePeriod:                time.Duration(option.HeartbeatInterval) * time.Millisecond,
+		DisablePathMTUDiscovery:        option.DisableMTUDiscovery,
+		EnableDatagrams:                true,
+	}
+	if option.ReceiveWindowConn == 0 {
+		quicConfig.InitialStreamReceiveWindow = tuic.DefaultStreamReceiveWindow / 10
+		quicConfig.MaxStreamReceiveWindow = tuic.DefaultStreamReceiveWindow
+	}
+	if option.ReceiveWindow == 0 {
+		quicConfig.InitialConnectionReceiveWindow = tuic.DefaultConnectionReceiveWindow / 10
+		quicConfig.MaxConnectionReceiveWindow = tuic.DefaultConnectionReceiveWindow
+	}
+
+	if len(option.Ip) > 0 {
+		addr = net.JoinHostPort(option.Ip, strconv.Itoa(option.Port))
+	}
+	host := option.Server
+	if option.DisableSni {
+		host = ""
+		tlsConfig.ServerName = ""
+	}
+	tkn := tuic.GenTKN(option.Token)
+
+	t := &Tuic{
+		Base: &Base{
+			name:   option.Name,
+			addr:   addr,
+			tp:     C.Tuic,
+			udp:    true,
+			tfo:    option.FastOpen,
+			iface:  option.Interface,
+			rmark:  option.RoutingMark,
+			prefer: C.NewDNSPrefer(option.IPVersion),
+		},
+	}
+
+	clientMaxOpenStreams := int64(option.MaxOpenStreams)
+
+	// to avoid tuic's "too many open streams", decrease to 0.9x
+	if clientMaxOpenStreams == 100 {
+		clientMaxOpenStreams = clientMaxOpenStreams - int64(math.Ceil(float64(clientMaxOpenStreams)/10.0))
+	}
+
+	if clientMaxOpenStreams < 1 {
+		clientMaxOpenStreams = 1
+	}
+	clientOption := &tuic.ClientOption{
+		TlsConfig:             tlsConfig,
+		QuicConfig:            quicConfig,
+		Host:                  host,
+		Token:                 tkn,
+		UdpRelayMode:          option.UdpRelayMode,
+		CongestionController:  option.CongestionController,
+		ReduceRtt:             option.ReduceRtt,
+		RequestTimeout:        time.Duration(option.RequestTimeout) * time.Millisecond,
+		MaxUdpRelayPacketSize: option.MaxUdpRelayPacketSize,
+		FastOpen:              option.FastOpen,
+		MaxOpenStreams:        clientMaxOpenStreams,
+	}
+
+	t.client = tuic.NewPoolClient(clientOption)
+
+	return t, nil
+}

adapter/outbound/util.go

@@ -2,9 +2,11 @@ package outbound
 
 import (
 	"bytes"
+	"context"
 	"crypto/tls"
 	xtls "github.com/xtls/go"
 	"net"
+	"net/netip"
 	"strconv"
 	"sync"
 	"time"
@@ -22,8 +24,8 @@ var (
 
 func tcpKeepAlive(c net.Conn) {
 	if tcp, ok := c.(*net.TCPConn); ok {
-		tcp.SetKeepAlive(true)
+		_ = tcp.SetKeepAlive(true)
-		tcp.SetKeepAlivePeriod(30 * time.Second)
+		_ = tcp.SetKeepAlivePeriod(30 * time.Second)
 	}
 }
 
@@ -43,31 +45,88 @@ func getClientXSessionCache() xtls.ClientSessionCache {
 
 func serializesSocksAddr(metadata *C.Metadata) []byte {
 	var buf [][]byte
-	aType := uint8(metadata.AddrType)
+	addrType := metadata.AddrType()
+	aType := uint8(addrType)
 	p, _ := strconv.ParseUint(metadata.DstPort, 10, 16)
 	port := []byte{uint8(p >> 8), uint8(p & 0xff)}
-	switch metadata.AddrType {
+	switch addrType {
 	case socks5.AtypDomainName:
-		len := uint8(len(metadata.Host))
+		lenM := uint8(len(metadata.Host))
 		host := []byte(metadata.Host)
-		buf = [][]byte{{aType, len}, host, port}
+		buf = [][]byte{{aType, lenM}, host, port}
 	case socks5.AtypIPv4:
-		host := metadata.DstIP.To4()
+		host := metadata.DstIP.AsSlice()
 		buf = [][]byte{{aType}, host, port}
 	case socks5.AtypIPv6:
-		host := metadata.DstIP.To16()
+		host := metadata.DstIP.AsSlice()
 		buf = [][]byte{{aType}, host, port}
 	}
 	return bytes.Join(buf, nil)
 }
 
-func resolveUDPAddr(network, address string) (*net.UDPAddr, error) {
+func resolveUDPAddr(ctx context.Context, network, address string) (*net.UDPAddr, error) {
 	host, port, err := net.SplitHostPort(address)
 	if err != nil {
 		return nil, err
 	}
 
-	ip, err := resolver.ResolveProxyServerHost(host)
+	ip, err := resolver.ResolveProxyServerHost(ctx, host)
+	if err != nil {
+		return nil, err
+	}
+	return net.ResolveUDPAddr(network, net.JoinHostPort(ip.String(), port))
+}
+
+func resolveUDPAddrWithPrefer(ctx context.Context, network, address string, prefer C.DNSPrefer) (*net.UDPAddr, error) {
+	host, port, err := net.SplitHostPort(address)
+	if err != nil {
+		return nil, err
+	}
+	var ip netip.Addr
+	var fallback netip.Addr
+	switch prefer {
+	case C.IPv4Only:
+		ip, err = resolver.ResolveIPv4ProxyServerHost(ctx, host)
+	case C.IPv6Only:
+		ip, err = resolver.ResolveIPv6ProxyServerHost(ctx, host)
+	case C.IPv6Prefer:
+		var ips []netip.Addr
+		ips, err = resolver.LookupIPProxyServerHost(ctx, host)
+		if err == nil {
+			for _, addr := range ips {
+				if addr.Is6() {
+					ip = addr
+					break
+				} else {
+					if !fallback.IsValid() {
+						fallback = addr
+					}
+				}
+			}
+		}
+	default:
+		// C.IPv4Prefer, C.DualStack and other
+		var ips []netip.Addr
+		ips, err = resolver.LookupIPProxyServerHost(ctx, host)
+		if err == nil {
+			for _, addr := range ips {
+				if addr.Is4() {
+					ip = addr
+					break
+				} else {
+					if !fallback.IsValid() {
+						fallback = addr
+					}
+				}
+			}
+
+		}
+	}
+
+	if !ip.IsValid() && fallback.IsValid() {
+		ip = fallback
+	}
+
 	if err != nil {
 		return nil, err
 	}
@@ -75,7 +134,7 @@ func resolveUDPAddr(network, address string) (*net.UDPAddr, error) {
 }
 
 func safeConnClose(c net.Conn, err error) {
-	if err != nil {
+	if err != nil && c != nil {
-		c.Close()
+		_ = c.Close()
 	}
 }

adapter/outbound/vless.go

@@ -12,14 +12,19 @@ import (
 	"strconv"
 	"sync"
 
+	"github.com/Dreamacro/clash/common/convert"
 	"github.com/Dreamacro/clash/component/dialer"
 	"github.com/Dreamacro/clash/component/resolver"
+	tlsC "github.com/Dreamacro/clash/component/tls"
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/transport/gun"
+	"github.com/Dreamacro/clash/transport/socks5"
 	"github.com/Dreamacro/clash/transport/vless"
 	"github.com/Dreamacro/clash/transport/vmess"
 
-	"golang.org/x/net/http2"
+	vmessSing "github.com/sagernet/sing-vmess"
+	"github.com/sagernet/sing-vmess/packetaddr"
+	M "github.com/sagernet/sing/common/metadata"
 )
 
 const (
@@ -35,7 +40,7 @@ type Vless struct {
 	// for gun mux
 	gunTLSConfig *tls.Config
 	gunConfig    *gun.Config
-	transport    *http2.Transport
+	transport    *gun.TransportWrap
 }
 
 type VlessOption struct {
@@ -48,6 +53,9 @@ type VlessOption struct {
 	FlowShow          bool              `proxy:"flow-show,omitempty"`
 	TLS               bool              `proxy:"tls,omitempty"`
 	UDP               bool              `proxy:"udp,omitempty"`
+	PacketAddr        bool              `proxy:"packet-addr,omitempty"`
+	XUDP              bool              `proxy:"xudp,omitempty"`
+	PacketEncoding    string            `proxy:"packet-encoding,omitempty"`
 	Network           string            `proxy:"network,omitempty"`
 	HTTPOpts          HTTPOptions       `proxy:"http-opts,omitempty"`
 	HTTP2Opts         HTTP2Options      `proxy:"h2-opts,omitempty"`
@@ -56,11 +64,18 @@ type VlessOption struct {
 	WSPath            string            `proxy:"ws-path,omitempty"`
 	WSHeaders         map[string]string `proxy:"ws-headers,omitempty"`
 	SkipCertVerify    bool              `proxy:"skip-cert-verify,omitempty"`
+	Fingerprint       string            `proxy:"fingerprint,omitempty"`
 	ServerName        string            `proxy:"servername,omitempty"`
+	ClientFingerprint string            `proxy:"client-fingerprint,omitempty"`
 }
 
 func (v *Vless) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 	var err error
+
+	if tlsC.HaveGlobalFingerprint() && len(v.option.ClientFingerprint) == 0 {
+		v.option.ClientFingerprint = tlsC.GetGlobalFingerprint()
+	}
+
 	switch v.option.Network {
 	case "ws":
 
@@ -71,28 +86,44 @@ func (v *Vless) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 			Path:                v.option.WSOpts.Path,
 			MaxEarlyData:        v.option.WSOpts.MaxEarlyData,
 			EarlyDataHeaderName: v.option.WSOpts.EarlyDataHeaderName,
+			ClientFingerprint:   v.option.ClientFingerprint,
+			Headers:             http.Header{},
 		}
 
 		if len(v.option.WSOpts.Headers) != 0 {
-			header := http.Header{}
 			for key, value := range v.option.WSOpts.Headers {
-				header.Add(key, value)
+				wsOpts.Headers.Add(key, value)
 			}
-			wsOpts.Headers = header
 		}
-
+		if v.option.TLS {
 			wsOpts.TLS = true
-		wsOpts.TLSConfig = &tls.Config{
+			tlsConfig := &tls.Config{
 				MinVersion:         tls.VersionTLS12,
 				ServerName:         host,
 				InsecureSkipVerify: v.option.SkipCertVerify,
 				NextProtos:         []string{"http/1.1"},
 			}
+
+			if len(v.option.Fingerprint) == 0 {
+				wsOpts.TLSConfig = tlsC.GetGlobalTLSConfig(tlsConfig)
+			} else {
+				wsOpts.TLSConfig, err = tlsC.GetSpecifiedFingerprintTLSConfig(tlsConfig, v.option.Fingerprint)
+				if err != nil {
+					return nil, err
+				}
+			}
+
 			if v.option.ServerName != "" {
 				wsOpts.TLSConfig.ServerName = v.option.ServerName
 			} else if host := wsOpts.Headers.Get("Host"); host != "" {
 				wsOpts.TLSConfig.ServerName = host
 			}
+		} else {
+			if host := wsOpts.Headers.Get("Host"); host == "" {
+				wsOpts.Headers.Set("Host", convert.RandHost())
+				convert.SetUserAgent(wsOpts.Headers)
+			}
+		}
 		c, err = vmess.StreamWebsocketConn(c, wsOpts)
 	case "http":
 		// readability first, so just copy default TLS logic
@@ -123,11 +154,7 @@ func (v *Vless) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 
 		c, err = vmess.StreamH2Conn(c, h2Opts)
 	case "grpc":
-		if v.isXTLSEnabled() {
-			c, err = gun.StreamGunWithXTLSConn(c, v.gunTLSConfig, v.gunConfig)
-		} else {
 		c, err = gun.StreamGunWithConn(c, v.gunTLSConfig, v.gunConfig)
-		}
 	default:
 		// default tcp network
 		// handle TLS And XTLS
@@ -138,20 +165,17 @@ func (v *Vless) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 		return nil, err
 	}
 
-	return v.client.StreamConn(c, parseVlessAddr(metadata))
+	return v.client.StreamConn(c, parseVlessAddr(metadata, v.option.XUDP))
 }
 
 func (v *Vless) streamTLSOrXTLSConn(conn net.Conn, isH2 bool) (net.Conn, error) {
 	host, _, _ := net.SplitHostPort(v.addr)
 
-	if v.isXTLSEnabled() {
+	if v.isLegacyXTLSEnabled() && !isH2 {
 		xtlsOpts := vless.XTLSConfig{
 			Host:           host,
 			SkipCertVerify: v.option.SkipCertVerify,
-		}
+			Fingerprint:    v.option.Fingerprint,
-
-		if isH2 {
-			xtlsOpts.NextProtos = []string{"h2"}
 		}
 
 		if v.option.ServerName != "" {
@@ -164,6 +188,8 @@ func (v *Vless) streamTLSOrXTLSConn(conn net.Conn, isH2 bool) (net.Conn, error)
 		tlsOpts := vmess.TLSConfig{
 			Host:              host,
 			SkipCertVerify:    v.option.SkipCertVerify,
+			FingerPrint:       v.option.Fingerprint,
+			ClientFingerprint: v.option.ClientFingerprint,
 		}
 
 		if isH2 {
@@ -180,8 +206,8 @@ func (v *Vless) streamTLSOrXTLSConn(conn net.Conn, isH2 bool) (net.Conn, error)
 	return conn, nil
 }
 
-func (v *Vless) isXTLSEnabled() bool {
+func (v *Vless) isLegacyXTLSEnabled() bool {
-	return v.client.Addons != nil
+	return v.client.Addons != nil && v.client.Addons.Flow != vless.XRV
 }
 
 // DialContext implements C.ProxyAdapter
@@ -192,32 +218,43 @@ func (v *Vless) 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, parseVlessAddr(metadata))
+		c, err = v.client.StreamConn(c, parseVlessAddr(metadata, v.option.XUDP))
 		if err != nil {
 			return nil, err
 		}
 
 		return NewConn(c, v), nil
 	}
+	return v.DialContextWithDialer(ctx, dialer.NewDialer(v.Base.DialOptions(opts...)...), metadata)
+}
 
-	c, err := dialer.DialContext(ctx, "tcp", v.addr, v.Base.DialOptions(opts...)...)
+// DialContextWithDialer implements C.ProxyAdapter
+func (v *Vless) DialContextWithDialer(ctx context.Context, dialer C.Dialer, metadata *C.Metadata) (_ C.Conn, err error) {
+	c, err := dialer.DialContext(ctx, "tcp", v.addr)
 	if err != nil {
 		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)
+	if err != nil {
+		return nil, fmt.Errorf("%s connect error: %s", v.addr, err.Error())
+	}
 	return NewConn(c, v), err
 }
 
 // ListenPacketContext implements C.ProxyAdapter
 func (v *Vless) ListenPacketContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (_ C.PacketConn, err error) {
-	// vless use stream-oriented udp with a special address, so we needs a net.UDPAddr
+	// vless use stream-oriented udp with a special address, so we need a net.UDPAddr
 	if !metadata.Resolved() {
-		ip, err := resolver.ResolveIP(metadata.Host)
+		ip, err := resolver.ResolveIP(ctx, metadata.Host)
 		if err != nil {
 			return nil, errors.New("can't resolve ip")
 		}
@@ -231,17 +268,55 @@ func (v *Vless) 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, parseVlessAddr(metadata))
+		if v.option.PacketAddr {
+			packetAddrMetadata := *metadata // make a copy
+			packetAddrMetadata.Host = packetaddr.SeqPacketMagicAddress
+			packetAddrMetadata.DstPort = "443"
+
+			c, err = v.client.StreamConn(c, parseVlessAddr(&packetAddrMetadata, false))
 		} else {
-		c, err = dialer.DialContext(ctx, "tcp", v.addr, v.Base.DialOptions(opts...)...)
+			c, err = v.client.StreamConn(c, parseVlessAddr(metadata, v.option.XUDP))
+		}
+
+		if err != nil {
+			return nil, fmt.Errorf("new vless client error: %v", err)
+		}
+
+		return v.ListenPacketOnStreamConn(c, metadata)
+	}
+	return v.ListenPacketWithDialer(ctx, dialer.NewDialer(v.Base.DialOptions(opts...)...), metadata)
+}
+
+// ListenPacketWithDialer implements C.ProxyAdapter
+func (v *Vless) ListenPacketWithDialer(ctx context.Context, dialer C.Dialer, metadata *C.Metadata) (_ C.PacketConn, err error) {
+	// vless use stream-oriented udp with a special address, so we need a net.UDPAddr
+	if !metadata.Resolved() {
+		ip, err := resolver.ResolveIP(ctx, metadata.Host)
+		if err != nil {
+			return nil, errors.New("can't resolve ip")
+		}
+		metadata.DstIP = ip
+	}
+	c, err := dialer.DialContext(ctx, "tcp", v.addr)
 	if err != nil {
 		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)
 
+	if v.option.PacketAddr {
+		packetAddrMetadata := *metadata // make a copy
+		packetAddrMetadata.Host = packetaddr.SeqPacketMagicAddress
+		packetAddrMetadata.DstPort = "443"
+
+		c, err = v.StreamConn(c, &packetAddrMetadata)
+	} else {
 		c, err = v.StreamConn(c, metadata)
 	}
 
@@ -249,26 +324,52 @@ func (v *Vless) ListenPacketContext(ctx context.Context, metadata *C.Metadata, o
 		return nil, fmt.Errorf("new vless client error: %v", err)
 	}
 
+	return v.ListenPacketOnStreamConn(c, metadata)
+}
+
+// SupportWithDialer implements C.ProxyAdapter
+func (v *Vless) SupportWithDialer() bool {
+	return true
+}
+
+// ListenPacketOnStreamConn implements C.ProxyAdapter
+func (v *Vless) ListenPacketOnStreamConn(c net.Conn, metadata *C.Metadata) (_ C.PacketConn, err error) {
+	if v.option.XUDP {
+		return newPacketConn(&threadSafePacketConn{
+			PacketConn: vmessSing.NewXUDPConn(c, M.ParseSocksaddr(metadata.RemoteAddress())),
+		}, v), nil
+	} else if v.option.PacketAddr {
+		return newPacketConn(&threadSafePacketConn{
+			PacketConn: packetaddr.NewConn(&vlessPacketConn{
+				Conn: c, rAddr: metadata.UDPAddr(),
+			}, M.ParseSocksaddr(metadata.RemoteAddress())),
+		}, v), nil
+	}
 	return newPacketConn(&vlessPacketConn{Conn: c, rAddr: metadata.UDPAddr()}, v), nil
 }
 
-func parseVlessAddr(metadata *C.Metadata) *vless.DstAddr {
+// SupportUOT implements C.ProxyAdapter
+func (v *Vless) SupportUOT() bool {
+	return true
+}
+
+func parseVlessAddr(metadata *C.Metadata, xudp bool) *vless.DstAddr {
 	var addrType byte
 	var addr []byte
-	switch metadata.AddrType {
+	switch metadata.AddrType() {
-	case C.AtypIPv4:
+	case socks5.AtypIPv4:
-		addrType = byte(vless.AtypIPv4)
+		addrType = vless.AtypIPv4
 		addr = make([]byte, net.IPv4len)
-		copy(addr[:], metadata.DstIP.To4())
+		copy(addr[:], metadata.DstIP.AsSlice())
-	case C.AtypIPv6:
+	case socks5.AtypIPv6:
-		addrType = byte(vless.AtypIPv6)
+		addrType = vless.AtypIPv6
 		addr = make([]byte, net.IPv6len)
-		copy(addr[:], metadata.DstIP.To16())
+		copy(addr[:], metadata.DstIP.AsSlice())
-	case C.AtypDomainName:
+	case socks5.AtypDomainName:
-		addrType = byte(vless.AtypDomainName)
+		addrType = vless.AtypDomainName
 		addr = make([]byte, len(metadata.Host)+1)
 		addr[0] = byte(len(metadata.Host))
-		copy(addr[1:], []byte(metadata.Host))
+		copy(addr[1:], metadata.Host)
 	}
 
 	port, _ := strconv.ParseUint(metadata.DstPort, 10, 16)
@@ -276,7 +377,8 @@ func parseVlessAddr(metadata *C.Metadata) *vless.DstAddr {
 		UDP:      metadata.NetWork == C.UDP,
 		AddrType: addrType,
 		Addr:     addr,
-		Port:     uint(port),
+		Port:     uint16(port),
+		Mux:      metadata.NetWork == C.UDP && xudp,
 	}
 }
 
@@ -377,7 +479,7 @@ func NewVless(option VlessOption) (*Vless, error) {
 	if option.Network != "ws" && len(option.Flow) >= 16 {
 		option.Flow = option.Flow[:16]
 		switch option.Flow {
-		case vless.XRO, vless.XRD, vless.XRS:
+		case vless.XRO, vless.XRD, vless.XRS, vless.XRV:
 			addons = &vless.Addons{
 				Flow: option.Flow,
 			}
@@ -386,6 +488,16 @@ func NewVless(option VlessOption) (*Vless, error) {
 		}
 	}
 
+	switch option.PacketEncoding {
+	case "packetaddr", "packet":
+		option.PacketAddr = true
+		option.XUDP = false
+	default: // https://github.com/XTLS/Xray-core/pull/1567#issuecomment-1407305458
+		if !option.PacketAddr {
+			option.XUDP = true
+		}
+	}
+
 	client, err := vless.NewClient(option.UUID, addons, option.FlowShow)
 	if err != nil {
 		return nil, err
@@ -397,7 +509,11 @@ func NewVless(option VlessOption) (*Vless, error) {
 			addr:   net.JoinHostPort(option.Server, strconv.Itoa(option.Port)),
 			tp:     C.Vless,
 			udp:    option.UDP,
+			xudp:   option.XUDP,
+			tfo:    option.TFO,
 			iface:  option.Interface,
+			rmark:  option.RoutingMark,
+			prefer: C.NewDNSPrefer(option.IPVersion),
 		},
 		client: client,
 		option: &option,
@@ -421,11 +537,12 @@ func NewVless(option VlessOption) (*Vless, error) {
 		gunConfig := &gun.Config{
 			ServiceName:       v.option.GrpcOpts.GrpcServiceName,
 			Host:              v.option.ServerName,
+			ClientFingerprint: v.option.ClientFingerprint,
 		}
-		tlsConfig := &tls.Config{
+		tlsConfig := tlsC.GetGlobalTLSConfig(&tls.Config{
 			InsecureSkipVerify: v.option.SkipCertVerify,
 			ServerName:         v.option.ServerName,
-		}
+		})
 
 		if v.option.ServerName == "" {
 			host, _, _ := net.SplitHostPort(v.addr)
@@ -435,11 +552,9 @@ func NewVless(option VlessOption) (*Vless, error) {
 
 		v.gunTLSConfig = tlsConfig
 		v.gunConfig = gunConfig
-		if v.isXTLSEnabled() {
+
-			v.transport = gun.NewHTTP2XTLSClient(dialFn, tlsConfig)
+		v.transport = gun.NewHTTP2Client(dialFn, tlsConfig, v.option.ClientFingerprint)
-		} else {
+
-			v.transport = gun.NewHTTP2Client(dialFn, tlsConfig)
-		}
 	}
 
 	return v, nil

adapter/outbound/vmess.go

@@ -9,16 +9,22 @@ import (
 	"net/http"
 	"strconv"
 	"strings"
+	"sync"
 
 	"github.com/Dreamacro/clash/component/dialer"
 	"github.com/Dreamacro/clash/component/resolver"
+	tlsC "github.com/Dreamacro/clash/component/tls"
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/transport/gun"
-	"github.com/Dreamacro/clash/transport/vmess"
+	clashVMess "github.com/Dreamacro/clash/transport/vmess"
 
-	"golang.org/x/net/http2"
+	vmess "github.com/sagernet/sing-vmess"
+	"github.com/sagernet/sing-vmess/packetaddr"
+	M "github.com/sagernet/sing/common/metadata"
 )
 
+var ErrUDPRemoteAddrMismatch = errors.New("udp packet dropped due to mismatched remote address")
+
 type Vmess struct {
 	*Base
 	client *vmess.Client
@@ -27,7 +33,7 @@ type Vmess struct {
 	// for gun mux
 	gunTLSConfig *tls.Config
 	gunConfig    *gun.Config
-	transport    *http2.Transport
+	transport    *gun.TransportWrap
 }
 
 type VmessOption struct {
@@ -42,15 +48,18 @@ type VmessOption struct {
 	Network             string       `proxy:"network,omitempty"`
 	TLS                 bool         `proxy:"tls,omitempty"`
 	SkipCertVerify      bool         `proxy:"skip-cert-verify,omitempty"`
+	Fingerprint         string       `proxy:"fingerprint,omitempty"`
 	ServerName          string       `proxy:"servername,omitempty"`
 	HTTPOpts            HTTPOptions  `proxy:"http-opts,omitempty"`
 	HTTP2Opts           HTTP2Options `proxy:"h2-opts,omitempty"`
 	GrpcOpts            GrpcOptions  `proxy:"grpc-opts,omitempty"`
 	WSOpts              WSOptions    `proxy:"ws-opts,omitempty"`
-
+	PacketAddr          bool         `proxy:"packet-addr,omitempty"`
-	// TODO: compatible with VMESS WS older version configurations
+	XUDP                bool         `proxy:"xudp,omitempty"`
-	WSHeaders map[string]string `proxy:"ws-headers,omitempty"`
+	PacketEncoding      string       `proxy:"packet-encoding,omitempty"`
-	WSPath    string            `proxy:"ws-path,omitempty"`
+	GlobalPadding       bool         `proxy:"global-padding,omitempty"`
+	AuthenticatedLength bool         `proxy:"authenticated-length,omitempty"`
+	ClientFingerprint   string       `proxy:"client-fingerprint,omitempty"`
 }
 
 type HTTPOptions struct {
@@ -78,121 +87,139 @@ type WSOptions struct {
 // StreamConn implements C.ProxyAdapter
 func (v *Vmess) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 	var err error
-	switch v.option.Network {
+
-	case "ws":
+	if tlsC.HaveGlobalFingerprint() && (len(v.option.ClientFingerprint) == 0) {
-		if v.option.WSOpts.Path == "" {
+		v.option.ClientFingerprint = tlsC.GetGlobalFingerprint()
-			v.option.WSOpts.Path = v.option.WSPath
-		}
-		if len(v.option.WSOpts.Headers) == 0 {
-			v.option.WSOpts.Headers = v.option.WSHeaders
 	}
 
+	switch v.option.Network {
+	case "ws":
+
 		host, port, _ := net.SplitHostPort(v.addr)
-		wsOpts := &vmess.WebsocketConfig{
+		wsOpts := &clashVMess.WebsocketConfig{
 			Host:                host,
 			Port:                port,
 			Path:                v.option.WSOpts.Path,
 			MaxEarlyData:        v.option.WSOpts.MaxEarlyData,
 			EarlyDataHeaderName: v.option.WSOpts.EarlyDataHeaderName,
+			ClientFingerprint:   v.option.ClientFingerprint,
+			Headers:             http.Header{},
 		}
 
 		if len(v.option.WSOpts.Headers) != 0 {
-			header := http.Header{}
 			for key, value := range v.option.WSOpts.Headers {
-				header.Add(key, value)
+				wsOpts.Headers.Add(key, value)
 			}
-			wsOpts.Headers = header
 		}
 
 		if v.option.TLS {
 			wsOpts.TLS = true
-			wsOpts.TLSConfig = &tls.Config{
+			tlsConfig := &tls.Config{
 				ServerName:         host,
 				InsecureSkipVerify: v.option.SkipCertVerify,
 				NextProtos:         []string{"http/1.1"},
 			}
+
+			if len(v.option.Fingerprint) == 0 {
+				wsOpts.TLSConfig = tlsC.GetGlobalTLSConfig(tlsConfig)
+			} else {
+				if wsOpts.TLSConfig, err = tlsC.GetSpecifiedFingerprintTLSConfig(tlsConfig, v.option.Fingerprint); err != nil {
+					return nil, err
+				}
+			}
+
 			if v.option.ServerName != "" {
 				wsOpts.TLSConfig.ServerName = v.option.ServerName
 			} else if host := wsOpts.Headers.Get("Host"); host != "" {
 				wsOpts.TLSConfig.ServerName = host
 			}
 		}
-		c, err = vmess.StreamWebsocketConn(c, wsOpts)
+		c, err = clashVMess.StreamWebsocketConn(c, wsOpts)
 	case "http":
 		// readability first, so just copy default TLS logic
 		if v.option.TLS {
 			host, _, _ := net.SplitHostPort(v.addr)
-			tlsOpts := &vmess.TLSConfig{
+			tlsOpts := &clashVMess.TLSConfig{
 				Host:              host,
 				SkipCertVerify:    v.option.SkipCertVerify,
+				ClientFingerprint: v.option.ClientFingerprint,
 			}
 
 			if v.option.ServerName != "" {
 				tlsOpts.Host = v.option.ServerName
 			}
 
-			c, err = vmess.StreamTLSConn(c, tlsOpts)
+			c, err = clashVMess.StreamTLSConn(c, tlsOpts)
 			if err != nil {
 				return nil, err
 			}
 		}
 
 		host, _, _ := net.SplitHostPort(v.addr)
-		httpOpts := &vmess.HTTPConfig{
+		httpOpts := &clashVMess.HTTPConfig{
 			Host:    host,
 			Method:  v.option.HTTPOpts.Method,
 			Path:    v.option.HTTPOpts.Path,
 			Headers: v.option.HTTPOpts.Headers,
 		}
 
-		c = vmess.StreamHTTPConn(c, httpOpts)
+		c = clashVMess.StreamHTTPConn(c, httpOpts)
 	case "h2":
 		host, _, _ := net.SplitHostPort(v.addr)
-		tlsOpts := vmess.TLSConfig{
+		tlsOpts := clashVMess.TLSConfig{
 			Host:              host,
 			SkipCertVerify:    v.option.SkipCertVerify,
 			NextProtos:        []string{"h2"},
+			ClientFingerprint: v.option.ClientFingerprint,
 		}
 
 		if v.option.ServerName != "" {
 			tlsOpts.Host = v.option.ServerName
 		}
 
-		c, err = vmess.StreamTLSConn(c, &tlsOpts)
+		c, err = clashVMess.StreamTLSConn(c, &tlsOpts)
 		if err != nil {
 			return nil, err
 		}
 
-		h2Opts := &vmess.H2Config{
+		h2Opts := &clashVMess.H2Config{
 			Hosts: v.option.HTTP2Opts.Host,
 			Path:  v.option.HTTP2Opts.Path,
 		}
 
-		c, err = vmess.StreamH2Conn(c, h2Opts)
+		c, err = clashVMess.StreamH2Conn(c, h2Opts)
 	case "grpc":
 		c, err = gun.StreamGunWithConn(c, v.gunTLSConfig, v.gunConfig)
 	default:
 		// handle TLS
 		if v.option.TLS {
 			host, _, _ := net.SplitHostPort(v.addr)
-			tlsOpts := &vmess.TLSConfig{
+			tlsOpts := &clashVMess.TLSConfig{
 				Host:              host,
 				SkipCertVerify:    v.option.SkipCertVerify,
+				ClientFingerprint: v.option.ClientFingerprint,
 			}
 
 			if v.option.ServerName != "" {
 				tlsOpts.Host = v.option.ServerName
 			}
 
-			c, err = vmess.StreamTLSConn(c, tlsOpts)
+			c, err = clashVMess.StreamTLSConn(c, tlsOpts)
 		}
 	}
 
 	if err != nil {
 		return nil, err
 	}
-
+	if metadata.NetWork == C.UDP {
-	return v.client.StreamConn(c, parseVmessAddr(metadata))
+		if v.option.XUDP {
+			return v.client.DialEarlyXUDPPacketConn(c, M.ParseSocksaddr(metadata.RemoteAddress())), nil
+		} else {
+			return v.client.DialEarlyPacketConn(c, M.ParseSocksaddr(metadata.RemoteAddress())), nil
+		}
+	} else {
+		return v.client.DialEarlyConn(c, M.ParseSocksaddr(metadata.RemoteAddress())), nil
+	}
 }
 
 // DialContext implements C.ProxyAdapter
@@ -203,22 +230,30 @@ 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))
+		c, err = v.client.DialConn(c, M.ParseSocksaddr(metadata.RemoteAddress()))
 		if err != nil {
 			return nil, err
 		}
 
 		return NewConn(c, v), nil
 	}
+	return v.DialContextWithDialer(ctx, dialer.NewDialer(v.Base.DialOptions(opts...)...), metadata)
+}
 
-	c, err := dialer.DialContext(ctx, "tcp", v.addr, v.Base.DialOptions(opts...)...)
+// DialContextWithDialer implements C.ProxyAdapter
+func (v *Vmess) DialContextWithDialer(ctx context.Context, dialer C.Dialer, metadata *C.Metadata) (_ C.Conn, err error) {
+	c, err := dialer.DialContext(ctx, "tcp", v.addr)
 	if err != nil {
 		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
@@ -226,15 +261,22 @@ func (v *Vmess) DialContext(ctx context.Context, metadata *C.Metadata, opts ...d
 
 // ListenPacketContext implements C.ProxyAdapter
 func (v *Vmess) ListenPacketContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (_ C.PacketConn, err error) {
-	// vmess use stream-oriented udp with a special address, so we needs a net.UDPAddr
+	// vmess use stream-oriented udp with a special address, so we need a net.UDPAddr
 	if !metadata.Resolved() {
-		ip, err := resolver.ResolveIP(metadata.Host)
+		ip, err := resolver.ResolveIP(ctx, metadata.Host)
 		if err != nil {
 			return nil, errors.New("can't resolve ip")
 		}
 		metadata.DstIP = ip
 	}
 
+	if v.option.PacketAddr {
+		_metadata := *metadata // make a copy
+		metadata = &_metadata
+		metadata.Host = packetaddr.SeqPacketMagicAddress
+		metadata.DstPort = "443"
+	}
+
 	var c net.Conn
 	// gun transport
 	if v.transport != nil && len(opts) == 0 {
@@ -242,45 +284,99 @@ 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))
+		if v.option.XUDP {
+			c = v.client.DialEarlyXUDPPacketConn(c, M.ParseSocksaddr(metadata.RemoteAddress()))
 		} else {
-		c, err = dialer.DialContext(ctx, "tcp", v.addr, v.Base.DialOptions(opts...)...)
+			c = v.client.DialEarlyPacketConn(c, M.ParseSocksaddr(metadata.RemoteAddress()))
-		if err != nil {
-			return nil, fmt.Errorf("%s connect error: %s", v.addr, err.Error())
-		}
-		tcpKeepAlive(c)
-		defer safeConnClose(c, err)
-
-		c, err = v.StreamConn(c, metadata)
 		}
 
 		if err != nil {
 			return nil, fmt.Errorf("new vmess client error: %v", err)
 		}
+		return v.ListenPacketOnStreamConn(c, metadata)
+	}
+	return v.ListenPacketWithDialer(ctx, dialer.NewDialer(v.Base.DialOptions(opts...)...), metadata)
+}
 
+// ListenPacketWithDialer implements C.ProxyAdapter
+func (v *Vmess) ListenPacketWithDialer(ctx context.Context, dialer C.Dialer, metadata *C.Metadata) (_ C.PacketConn, err error) {
+	// vmess use stream-oriented udp with a special address, so we need a net.UDPAddr
+	if !metadata.Resolved() {
+		ip, err := resolver.ResolveIP(ctx, metadata.Host)
+		if err != nil {
+			return nil, errors.New("can't resolve ip")
+		}
+		metadata.DstIP = ip
+	}
+
+	c, err := dialer.DialContext(ctx, "tcp", v.addr)
+	if err != nil {
+		return nil, fmt.Errorf("%s connect error: %s", v.addr, err.Error())
+	}
+	tcpKeepAlive(c)
+	defer func(c net.Conn) {
+		safeConnClose(c, err)
+	}(c)
+
+	c, err = v.StreamConn(c, metadata)
+	if err != nil {
+		return nil, fmt.Errorf("new vmess client error: %v", err)
+	}
+	return v.ListenPacketOnStreamConn(c, metadata)
+}
+
+// SupportWithDialer implements C.ProxyAdapter
+func (v *Vmess) SupportWithDialer() bool {
+	return true
+}
+
+// ListenPacketOnStreamConn implements C.ProxyAdapter
+func (v *Vmess) ListenPacketOnStreamConn(c net.Conn, metadata *C.Metadata) (_ C.PacketConn, err error) {
+	if v.option.PacketAddr {
+		return newPacketConn(&threadSafePacketConn{PacketConn: packetaddr.NewBindConn(c)}, v), nil
+	} else if pc, ok := c.(net.PacketConn); ok {
+		return newPacketConn(&threadSafePacketConn{PacketConn: pc}, v), nil
+	}
 	return newPacketConn(&vmessPacketConn{Conn: c, rAddr: metadata.UDPAddr()}, v), nil
 }
 
+// SupportUOT implements C.ProxyAdapter
+func (v *Vmess) SupportUOT() bool {
+	return true
+}
+
 func NewVmess(option VmessOption) (*Vmess, error) {
 	security := strings.ToLower(option.Cipher)
-	client, err := vmess.NewClient(vmess.Config{
+	var options []vmess.ClientOption
-		UUID:     option.UUID,
+	if option.GlobalPadding {
-		AlterID:  uint16(option.AlterID),
+		options = append(options, vmess.ClientWithGlobalPadding())
-		Security: security,
+	}
-		HostName: option.Server,
+	if option.AuthenticatedLength {
-		Port:     strconv.Itoa(option.Port),
+		options = append(options, vmess.ClientWithAuthenticatedLength())
-		IsAead:   option.AlterID == 0,
+	}
-	})
+	client, err := vmess.NewClient(option.UUID, security, option.AlterID, options...)
 	if err != nil {
 		return nil, err
 	}
 
+	switch option.PacketEncoding {
+	case "packetaddr", "packet":
+		option.PacketAddr = true
+	case "xudp":
+		option.XUDP = true
+	}
+	if option.XUDP {
+		option.PacketAddr = false
+	}
+
 	switch option.Network {
 	case "h2", "grpc":
 		if !option.TLS {
-			return nil, fmt.Errorf("TLS must be true with h2/grpc network")
+			option.TLS = true
 		}
 	}
 
@@ -290,8 +386,11 @@ func NewVmess(option VmessOption) (*Vmess, error) {
 			addr:   net.JoinHostPort(option.Server, strconv.Itoa(option.Port)),
 			tp:     C.Vmess,
 			udp:    option.UDP,
+			xudp:   option.XUDP,
+			tfo:    option.TFO,
 			iface:  option.Interface,
 			rmark:  option.RoutingMark,
+			prefer: C.NewDNSPrefer(option.IPVersion),
 		},
 		client: client,
 		option: &option,
@@ -315,6 +414,7 @@ func NewVmess(option VmessOption) (*Vmess, error) {
 		gunConfig := &gun.Config{
 			ServiceName:       v.option.GrpcOpts.GrpcServiceName,
 			Host:              v.option.ServerName,
+			ClientFingerprint: v.option.ClientFingerprint,
 		}
 		tlsConfig := &tls.Config{
 			InsecureSkipVerify: v.option.SkipCertVerify,
@@ -329,46 +429,40 @@ func NewVmess(option VmessOption) (*Vmess, error) {
 
 		v.gunTLSConfig = tlsConfig
 		v.gunConfig = gunConfig
-		v.transport = gun.NewHTTP2Client(dialFn, tlsConfig)
-	}
 
+		v.transport = gun.NewHTTP2Client(dialFn, tlsConfig, v.option.ClientFingerprint)
+
+	}
 	return v, nil
 }
 
-func parseVmessAddr(metadata *C.Metadata) *vmess.DstAddr {
+type threadSafePacketConn struct {
-	var addrType byte
+	net.PacketConn
-	var addr []byte
+	access sync.Mutex
-	switch metadata.AddrType {
+}
-	case C.AtypIPv4:
-		addrType = byte(vmess.AtypIPv4)
-		addr = make([]byte, net.IPv4len)
-		copy(addr[:], metadata.DstIP.To4())
-	case C.AtypIPv6:
-		addrType = byte(vmess.AtypIPv6)
-		addr = make([]byte, net.IPv6len)
-		copy(addr[:], metadata.DstIP.To16())
-	case C.AtypDomainName:
-		addrType = byte(vmess.AtypDomainName)
-		addr = make([]byte, len(metadata.Host)+1)
-		addr[0] = byte(len(metadata.Host))
-		copy(addr[1:], []byte(metadata.Host))
-	}
 
-	port, _ := strconv.ParseUint(metadata.DstPort, 10, 16)
+func (c *threadSafePacketConn) WriteTo(b []byte, addr net.Addr) (int, error) {
-	return &vmess.DstAddr{
+	c.access.Lock()
-		UDP:      metadata.NetWork == C.UDP,
+	defer c.access.Unlock()
-		AddrType: addrType,
+	return c.PacketConn.WriteTo(b, addr)
-		Addr:     addr,
-		Port:     uint(port),
-	}
 }
 
 type vmessPacketConn struct {
 	net.Conn
 	rAddr  net.Addr
+	access sync.Mutex
 }
 
+// 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
+	}
+	uc.access.Lock()
+	defer uc.access.Unlock()
 	return uc.Conn.Write(b)
 }
 

adapter/outbound/wireguard.go

@@ -0,0 +1,258 @@
+package outbound
+
+import (
+	"context"
+	"encoding/base64"
+	"encoding/hex"
+	"errors"
+	"fmt"
+	"net"
+	"net/netip"
+	"runtime"
+	"strconv"
+	"strings"
+	"sync"
+
+	CN "github.com/Dreamacro/clash/common/net"
+	"github.com/Dreamacro/clash/component/dialer"
+	"github.com/Dreamacro/clash/component/resolver"
+	C "github.com/Dreamacro/clash/constant"
+	"github.com/Dreamacro/clash/log"
+
+	wireguard "github.com/metacubex/sing-wireguard"
+
+	"github.com/sagernet/sing/common"
+	"github.com/sagernet/sing/common/debug"
+	E "github.com/sagernet/sing/common/exceptions"
+	M "github.com/sagernet/sing/common/metadata"
+	N "github.com/sagernet/sing/common/network"
+	"github.com/sagernet/wireguard-go/device"
+)
+
+type WireGuard struct {
+	*Base
+	bind      *wireguard.ClientBind
+	device    *device.Device
+	tunDevice wireguard.Device
+	dialer    *wgDialer
+	startOnce sync.Once
+	startErr  error
+}
+
+type WireGuardOption struct {
+	BasicOption
+	Name                string  `proxy:"name"`
+	Server              string  `proxy:"server"`
+	Port                int     `proxy:"port"`
+	Ip                  string  `proxy:"ip,omitempty"`
+	Ipv6                string  `proxy:"ipv6,omitempty"`
+	PrivateKey          string  `proxy:"private-key"`
+	PublicKey           string  `proxy:"public-key"`
+	PreSharedKey        string  `proxy:"pre-shared-key,omitempty"`
+	Reserved            []uint8 `proxy:"reserved,omitempty"`
+	Workers             int     `proxy:"workers,omitempty"`
+	MTU                 int     `proxy:"mtu,omitempty"`
+	UDP                 bool    `proxy:"udp,omitempty"`
+	PersistentKeepalive int     `proxy:"persistent-keepalive,omitempty"`
+}
+
+type wgDialer struct {
+	options []dialer.Option
+}
+
+func (d *wgDialer) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
+	return dialer.DialContext(ctx, network, destination.String(), d.options...)
+}
+
+func (d *wgDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
+	return dialer.ListenPacket(ctx, dialer.ParseNetwork("udp", destination.Addr), "", d.options...)
+}
+
+func NewWireGuard(option WireGuardOption) (*WireGuard, error) {
+	outbound := &WireGuard{
+		Base: &Base{
+			name:   option.Name,
+			addr:   net.JoinHostPort(option.Server, strconv.Itoa(option.Port)),
+			tp:     C.WireGuard,
+			udp:    option.UDP,
+			iface:  option.Interface,
+			rmark:  option.RoutingMark,
+			prefer: C.NewDNSPrefer(option.IPVersion),
+		},
+		dialer: &wgDialer{},
+	}
+	runtime.SetFinalizer(outbound, closeWireGuard)
+
+	var reserved [3]uint8
+	if len(option.Reserved) > 0 {
+		if len(option.Reserved) != 3 {
+			return nil, E.New("invalid reserved value, required 3 bytes, got ", len(option.Reserved))
+		}
+		reserved[0] = uint8(option.Reserved[0])
+		reserved[1] = uint8(option.Reserved[1])
+		reserved[2] = uint8(option.Reserved[2])
+	}
+	peerAddr := M.ParseSocksaddrHostPort(option.Server, uint16(option.Port))
+	outbound.bind = wireguard.NewClientBind(context.Background(), outbound.dialer, peerAddr, reserved)
+	localPrefixes := make([]netip.Prefix, 0, 2)
+	if len(option.Ip) > 0 {
+		if !strings.Contains(option.Ip, "/") {
+			option.Ip = option.Ip + "/32"
+		}
+		if prefix, err := netip.ParsePrefix(option.Ip); err == nil {
+			localPrefixes = append(localPrefixes, prefix)
+		} else {
+			return nil, E.Cause(err, "ip address parse error")
+		}
+	}
+	if len(option.Ipv6) > 0 {
+		if !strings.Contains(option.Ipv6, "/") {
+			option.Ipv6 = option.Ipv6 + "/128"
+		}
+		if prefix, err := netip.ParsePrefix(option.Ipv6); err == nil {
+			localPrefixes = append(localPrefixes, prefix)
+		} else {
+			return nil, E.Cause(err, "ipv6 address parse error")
+		}
+	}
+	if len(localPrefixes) == 0 {
+		return nil, E.New("missing local address")
+	}
+	var privateKey, peerPublicKey, preSharedKey string
+	{
+		bytes, err := base64.StdEncoding.DecodeString(option.PrivateKey)
+		if err != nil {
+			return nil, E.Cause(err, "decode private key")
+		}
+		privateKey = hex.EncodeToString(bytes)
+	}
+	{
+		bytes, err := base64.StdEncoding.DecodeString(option.PublicKey)
+		if err != nil {
+			return nil, E.Cause(err, "decode peer public key")
+		}
+		peerPublicKey = hex.EncodeToString(bytes)
+	}
+	if option.PreSharedKey != "" {
+		bytes, err := base64.StdEncoding.DecodeString(option.PreSharedKey)
+		if err != nil {
+			return nil, E.Cause(err, "decode pre shared key")
+		}
+		preSharedKey = hex.EncodeToString(bytes)
+	}
+	ipcConf := "private_key=" + privateKey
+	ipcConf += "\npublic_key=" + peerPublicKey
+	ipcConf += "\nendpoint=" + peerAddr.String()
+	if preSharedKey != "" {
+		ipcConf += "\npreshared_key=" + preSharedKey
+	}
+	var has4, has6 bool
+	for _, address := range localPrefixes {
+		if address.Addr().Is4() {
+			has4 = true
+		} else {
+			has6 = true
+		}
+	}
+	if has4 {
+		ipcConf += "\nallowed_ip=0.0.0.0/0"
+	}
+	if has6 {
+		ipcConf += "\nallowed_ip=::/0"
+	}
+	if option.PersistentKeepalive != 0 {
+		ipcConf += fmt.Sprintf("\npersistent_keepalive_interval=%d", option.PersistentKeepalive)
+	}
+	mtu := option.MTU
+	if mtu == 0 {
+		mtu = 1408
+	}
+	var err error
+	outbound.tunDevice, err = wireguard.NewStackDevice(localPrefixes, uint32(mtu))
+	if err != nil {
+		return nil, E.Cause(err, "create WireGuard device")
+	}
+	outbound.device = device.NewDevice(outbound.tunDevice, outbound.bind, &device.Logger{
+		Verbosef: func(format string, args ...interface{}) {
+			log.SingLogger.Debug(fmt.Sprintf(strings.ToLower(format), args...))
+		},
+		Errorf: func(format string, args ...interface{}) {
+			log.SingLogger.Error(fmt.Sprintf(strings.ToLower(format), args...))
+		},
+	}, option.Workers)
+	if debug.Enabled {
+		log.SingLogger.Trace("created wireguard ipc conf: \n", ipcConf)
+	}
+	err = outbound.device.IpcSet(ipcConf)
+	if err != nil {
+		return nil, E.Cause(err, "setup wireguard")
+	}
+	//err = outbound.tunDevice.Start()
+	return outbound, nil
+}
+
+func closeWireGuard(w *WireGuard) {
+	if w.device != nil {
+		w.device.Close()
+	}
+	_ = common.Close(w.tunDevice)
+}
+
+func (w *WireGuard) DialContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (_ C.Conn, err error) {
+	w.dialer.options = opts
+	var conn net.Conn
+	w.startOnce.Do(func() {
+		w.startErr = w.tunDevice.Start()
+	})
+	if w.startErr != nil {
+		return nil, w.startErr
+	}
+	if !metadata.Resolved() {
+		var addrs []netip.Addr
+		addrs, err = resolver.LookupIP(ctx, metadata.Host)
+		if err != nil {
+			return nil, err
+		}
+		conn, err = N.DialSerial(ctx, w.tunDevice, "tcp", M.ParseSocksaddr(metadata.RemoteAddress()), addrs)
+	} else {
+		port, _ := strconv.Atoi(metadata.DstPort)
+		conn, err = w.tunDevice.DialContext(ctx, "tcp", M.SocksaddrFrom(metadata.DstIP, uint16(port)))
+	}
+	if err != nil {
+		return nil, err
+	}
+	if conn == nil {
+		return nil, E.New("conn is nil")
+	}
+	return NewConn(CN.NewRefConn(conn, w), w), nil
+}
+
+func (w *WireGuard) ListenPacketContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (_ C.PacketConn, err error) {
+	w.dialer.options = opts
+	var pc net.PacketConn
+	w.startOnce.Do(func() {
+		w.startErr = w.tunDevice.Start()
+	})
+	if w.startErr != nil {
+		return nil, w.startErr
+	}
+	if err != nil {
+		return nil, err
+	}
+	if !metadata.Resolved() {
+		ip, err := resolver.ResolveIP(ctx, metadata.Host)
+		if err != nil {
+			return nil, errors.New("can't resolve ip")
+		}
+		metadata.DstIP = ip
+	}
+	port, _ := strconv.Atoi(metadata.DstPort)
+	pc, err = w.tunDevice.ListenPacket(ctx, M.SocksaddrFrom(metadata.DstIP, uint16(port)))
+	if err != nil {
+		return nil, err
+	}
+	if pc == nil {
+		return nil, E.New("packetConn is nil")
+	}
+	return newPacketConn(CN.NewRefPacketConn(pc, w), w), nil
+}

adapter/outboundgroup/common.go

@@ -1,55 +0,0 @@
-package outboundgroup
-
-import (
-	"github.com/Dreamacro/clash/tunnel"
-	"github.com/dlclark/regexp2"
-	"time"
-
-	C "github.com/Dreamacro/clash/constant"
-	"github.com/Dreamacro/clash/constant/provider"
-)
-
-const (
-	defaultGetProxiesDuration = time.Second * 5
-)
-
-func getProvidersProxies(providers []provider.ProxyProvider, touch bool, filter string) []C.Proxy {
-	proxies := []C.Proxy{}
-	for _, provider := range providers {
-		if touch {
-			proxies = append(proxies, provider.ProxiesWithTouch()...)
-		} else {
-			proxies = append(proxies, provider.Proxies()...)
-		}
-	}
-
-	var filterReg *regexp2.Regexp = nil
-	var matchedProxies []C.Proxy
-	if len(filter) > 0 {
-		//filterReg = regexp.MustCompile(filter)
-		filterReg = regexp2.MustCompile(filter, 0)
-		for _, p := range proxies {
-			if p.Type() < 8 {
-				matchedProxies = append(matchedProxies, p)
-			}
-
-			//if filterReg.MatchString(p.Name()) {
-			if mat, _ := filterReg.FindStringMatch(p.Name()); mat != nil {
-				matchedProxies = append(matchedProxies, p)
-			}
-		}
-
-		if len(matchedProxies) > 0 {
-			return matchedProxies
-		} else {
-			return append([]C.Proxy{}, tunnel.Proxies()["COMPATIBLE"])
-		}
-	} else {
-		if len(proxies) == 0 {
-			return append(proxies, tunnel.Proxies()["COMPATIBLE"])
-		} else {
-			return proxies
-		}
-	}
-
-}

adapter/outboundgroup/fallback.go

@@ -3,25 +3,21 @@ package outboundgroup
 import (
 	"context"
 	"encoding/json"
-	"github.com/Dreamacro/clash/log"
+	"errors"
-	"go.uber.org/atomic"
 	"time"
 
 	"github.com/Dreamacro/clash/adapter/outbound"
-	"github.com/Dreamacro/clash/common/singledo"
+	"github.com/Dreamacro/clash/common/callback"
 	"github.com/Dreamacro/clash/component/dialer"
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/constant/provider"
 )
 
 type Fallback struct {
-	*outbound.Base
+	*GroupBase
 	disableUDP bool
-	filter      string
+	testUrl    string
-	single      *singledo.Single
+	selected   string
-	providers   []provider.ProxyProvider
-	failedTimes *atomic.Int32
-	failedTime  *atomic.Int64
 }
 
 func (f *Fallback) Now() string {
@@ -35,10 +31,19 @@ func (f *Fallback) DialContext(ctx context.Context, metadata *C.Metadata, opts .
 	c, err := proxy.DialContext(ctx, metadata, f.Base.DialOptions(opts...)...)
 	if err == nil {
 		c.AppendToChains(f)
-		f.failedTimes.Store(-1)
-		f.failedTime.Store(-1)
 	} else {
-		f.onDialFailed()
+		f.onDialFailed(proxy.Type(), err)
+	}
+
+	c = &callback.FirstWriteCallBackConn{
+		Conn: c,
+		Callback: func(err error) {
+			if err == nil {
+				f.onDialSuccess()
+			} else {
+				f.onDialFailed(proxy.Type(), err)
+			}
+		},
 	}
 
 	return c, err
@@ -50,41 +55,11 @@ func (f *Fallback) ListenPacketContext(ctx context.Context, metadata *C.Metadata
 	pc, err := proxy.ListenPacketContext(ctx, metadata, f.Base.DialOptions(opts...)...)
 	if err == nil {
 		pc.AppendToChains(f)
-		f.failedTimes.Store(-1)
-		f.failedTime.Store(-1)
-	} else {
-		f.onDialFailed()
 	}
 
 	return pc, err
 }
 
-func (f *Fallback) onDialFailed() {
-	if f.failedTime.Load() == -1 {
-		log.Warnln("%s first failed", f.Name())
-		now := time.Now().UnixMilli()
-		f.failedTime.Store(now)
-		f.failedTimes.Store(1)
-	} else {
-		if f.failedTime.Load()-time.Now().UnixMilli() > 5*time.Second.Milliseconds() {
-			f.failedTimes.Store(-1)
-			f.failedTime.Store(-1)
-		} else {
-			failedCount := f.failedTimes.Inc()
-			log.Warnln("%s failed count: %d", f.Name(), failedCount)
-			if failedCount >= 5 {
-				log.Warnln("because %s failed multiple times, active health check", f.Name())
-				for _, proxyProvider := range f.providers {
-					go proxyProvider.HealthCheck()
-				}
-
-				f.failedTimes.Store(-1)
-				f.failedTime.Store(-1)
-			}
-		}
-	}
-}
-
 // SupportUDP implements C.ProxyAdapter
 func (f *Fallback) SupportUDP() bool {
 	if f.disableUDP {
@@ -98,7 +73,7 @@ func (f *Fallback) SupportUDP() bool {
 // MarshalJSON implements C.ProxyAdapter
 func (f *Fallback) MarshalJSON() ([]byte, error) {
 	all := []string{}
-	for _, proxy := range f.proxies(false) {
+	for _, proxy := range f.GetProxies(false) {
 		all = append(all, proxy.Name())
 	}
 	return json.Marshal(map[string]any{
@@ -109,43 +84,70 @@ func (f *Fallback) MarshalJSON() ([]byte, error) {
 }
 
 // Unwrap implements C.ProxyAdapter
-func (f *Fallback) Unwrap(metadata *C.Metadata) C.Proxy {
+func (f *Fallback) Unwrap(metadata *C.Metadata, touch bool) C.Proxy {
-	proxy := f.findAliveProxy(true)
+	proxy := f.findAliveProxy(touch)
 	return proxy
 }
 
-func (f *Fallback) proxies(touch bool) []C.Proxy {
-	elm, _, _ := f.single.Do(func() (any, error) {
-		return getProvidersProxies(f.providers, touch, f.filter), nil
-	})
-
-	return elm.([]C.Proxy)
-}
-
 func (f *Fallback) findAliveProxy(touch bool) C.Proxy {
-	proxies := f.proxies(touch)
+	proxies := f.GetProxies(touch)
 	for _, proxy := range proxies {
+		if len(f.selected) == 0 {
 			if proxy.Alive() {
 				return proxy
 			}
+		} else {
+			if proxy.Name() == f.selected {
+				if proxy.Alive() {
+					return proxy
+				} else {
+					f.selected = ""
+				}
+			}
+		}
 	}
 
 	return proxies[0]
 }
 
+func (f *Fallback) Set(name string) error {
+	var p C.Proxy
+	for _, proxy := range f.GetProxies(false) {
+		if proxy.Name() == name {
+			p = proxy
+			break
+		}
+	}
+
+	if p == nil {
+		return errors.New("proxy not exist")
+	}
+
+	f.selected = name
+	if !p.Alive() {
+		ctx, cancel := context.WithTimeout(context.Background(), time.Millisecond*time.Duration(5000))
+		defer cancel()
+		_, _ = p.URLTest(ctx, f.testUrl)
+	}
+
+	return nil
+}
+
 func NewFallback(option *GroupCommonOption, providers []provider.ProxyProvider) *Fallback {
 	return &Fallback{
-		Base: outbound.NewBase(outbound.BaseOption{
+		GroupBase: NewGroupBase(GroupBaseOption{
+			outbound.BaseOption{
 				Name:        option.Name,
 				Type:        C.Fallback,
 				Interface:   option.Interface,
 				RoutingMark: option.RoutingMark,
+			},
+			option.Filter,
+			option.ExcludeFilter,
+			option.ExcludeType,
+			providers,
 		}),
-		single:      singledo.NewSingle(defaultGetProxiesDuration),
-		providers:   providers,
 		disableUDP: option.DisableUDP,
-		filter:      option.Filter,
+		testUrl:    option.URL,
-		failedTimes: atomic.NewInt32(-1),
-		failedTime:  atomic.NewInt64(-1),
 	}
 }

adapter/outboundgroup/groupbase.go

@@ -0,0 +1,293 @@
+package outboundgroup
+
+import (
+	"context"
+	"fmt"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/Dreamacro/clash/adapter/outbound"
+	C "github.com/Dreamacro/clash/constant"
+	"github.com/Dreamacro/clash/constant/provider"
+	types "github.com/Dreamacro/clash/constant/provider"
+	"github.com/Dreamacro/clash/log"
+	"github.com/Dreamacro/clash/tunnel"
+
+	"github.com/dlclark/regexp2"
+	"go.uber.org/atomic"
+)
+
+type GroupBase struct {
+	*outbound.Base
+	filterRegs       []*regexp2.Regexp
+	excludeFilterReg *regexp2.Regexp
+	excludeTypeArray []string
+	providers        []provider.ProxyProvider
+	failedTestMux    sync.Mutex
+	failedTimes      int
+	failedTime       time.Time
+	failedTesting    *atomic.Bool
+	proxies          [][]C.Proxy
+	versions         []atomic.Uint32
+}
+
+type GroupBaseOption struct {
+	outbound.BaseOption
+	filter        string
+	excludeFilter string
+	excludeType   string
+	providers     []provider.ProxyProvider
+}
+
+func NewGroupBase(opt GroupBaseOption) *GroupBase {
+	var excludeFilterReg *regexp2.Regexp
+	if opt.excludeFilter != "" {
+		excludeFilterReg = regexp2.MustCompile(opt.excludeFilter, 0)
+	}
+	var excludeTypeArray []string
+	if opt.excludeType != "" {
+		excludeTypeArray = strings.Split(opt.excludeType, "|")
+	}
+
+	var filterRegs []*regexp2.Regexp
+	if opt.filter != "" {
+		for _, filter := range strings.Split(opt.filter, "`") {
+			filterReg := regexp2.MustCompile(filter, 0)
+			filterRegs = append(filterRegs, filterReg)
+		}
+	}
+
+	gb := &GroupBase{
+		Base:             outbound.NewBase(opt.BaseOption),
+		filterRegs:       filterRegs,
+		excludeFilterReg: excludeFilterReg,
+		excludeTypeArray: excludeTypeArray,
+		providers:        opt.providers,
+		failedTesting:    atomic.NewBool(false),
+	}
+
+	gb.proxies = make([][]C.Proxy, len(opt.providers))
+	gb.versions = make([]atomic.Uint32, len(opt.providers))
+
+	return gb
+}
+
+func (gb *GroupBase) Touch() {
+	for _, pd := range gb.providers {
+		pd.Touch()
+	}
+}
+
+func (gb *GroupBase) GetProxies(touch bool) []C.Proxy {
+	var proxies []C.Proxy
+	if len(gb.filterRegs) == 0 {
+		for _, pd := range gb.providers {
+			if touch {
+				pd.Touch()
+			}
+			proxies = append(proxies, pd.Proxies()...)
+		}
+	} else {
+		for i, pd := range gb.providers {
+			if touch {
+				pd.Touch()
+			}
+
+			if pd.VehicleType() == types.Compatible {
+				gb.versions[i].Store(pd.Version())
+				gb.proxies[i] = pd.Proxies()
+				continue
+			}
+
+			version := gb.versions[i].Load()
+			if version != pd.Version() && gb.versions[i].CompareAndSwap(version, pd.Version()) {
+				var (
+					proxies    []C.Proxy
+					newProxies []C.Proxy
+				)
+
+				proxies = pd.Proxies()
+				proxiesSet := map[string]struct{}{}
+				for _, filterReg := range gb.filterRegs {
+					for _, p := range proxies {
+						name := p.Name()
+						if mat, _ := filterReg.FindStringMatch(name); mat != nil {
+							if _, ok := proxiesSet[name]; !ok {
+								proxiesSet[name] = struct{}{}
+								newProxies = append(newProxies, p)
+							}
+						}
+					}
+				}
+
+				gb.proxies[i] = newProxies
+			}
+		}
+
+		for _, p := range gb.proxies {
+			proxies = append(proxies, p...)
+		}
+	}
+
+	if len(proxies) == 0 {
+		return append(proxies, tunnel.Proxies()["COMPATIBLE"])
+	}
+
+	if len(gb.providers) > 1 && len(gb.filterRegs) > 1 {
+		var newProxies []C.Proxy
+		proxiesSet := map[string]struct{}{}
+		for _, filterReg := range gb.filterRegs {
+			for _, p := range proxies {
+				name := p.Name()
+				if mat, _ := filterReg.FindStringMatch(name); mat != nil {
+					if _, ok := proxiesSet[name]; !ok {
+						proxiesSet[name] = struct{}{}
+						newProxies = append(newProxies, p)
+					}
+				}
+			}
+		}
+		for _, p := range proxies { // add not matched proxies at the end
+			name := p.Name()
+			if _, ok := proxiesSet[name]; !ok {
+				proxiesSet[name] = struct{}{}
+				newProxies = append(newProxies, p)
+			}
+		}
+		proxies = newProxies
+	}
+	if gb.excludeTypeArray != nil {
+		var newProxies []C.Proxy
+		for _, p := range proxies {
+			mType := p.Type().String()
+			flag := false
+			for i := range gb.excludeTypeArray {
+				if strings.EqualFold(mType, gb.excludeTypeArray[i]) {
+					flag = true
+					break
+				}
+
+			}
+			if flag {
+				continue
+			}
+			newProxies = append(newProxies, p)
+		}
+		proxies = newProxies
+	}
+
+	if gb.excludeFilterReg != nil {
+		var newProxies []C.Proxy
+		for _, p := range proxies {
+			name := p.Name()
+			if mat, _ := gb.excludeFilterReg.FindStringMatch(name); mat != nil {
+				continue
+			}
+			newProxies = append(newProxies, p)
+		}
+		proxies = newProxies
+	}
+
+	return proxies
+}
+
+func (gb *GroupBase) URLTest(ctx context.Context, url string) (map[string]uint16, error) {
+	var wg sync.WaitGroup
+	var lock sync.Mutex
+	mp := map[string]uint16{}
+	proxies := gb.GetProxies(false)
+	for _, proxy := range proxies {
+		proxy := proxy
+		wg.Add(1)
+		go func() {
+			delay, err := proxy.URLTest(ctx, url)
+			if err == nil {
+				lock.Lock()
+				mp[proxy.Name()] = delay
+				lock.Unlock()
+			}
+
+			wg.Done()
+		}()
+	}
+	wg.Wait()
+
+	if len(mp) == 0 {
+		return mp, fmt.Errorf("get delay: all proxies timeout")
+	} else {
+		return mp, nil
+	}
+}
+
+func (gb *GroupBase) onDialFailed(adapterType C.AdapterType, err error) {
+	if adapterType == C.Direct || adapterType == C.Compatible || adapterType == C.Reject || adapterType == C.Pass {
+		return
+	}
+
+	if strings.Contains(err.Error(), "connection refused") {
+		go gb.healthCheck()
+		return
+	}
+
+	go func() {
+		gb.failedTestMux.Lock()
+		defer gb.failedTestMux.Unlock()
+
+		gb.failedTimes++
+		if gb.failedTimes == 1 {
+			log.Debugln("ProxyGroup: %s first failed", gb.Name())
+			gb.failedTime = time.Now()
+		} else {
+			if time.Since(gb.failedTime) > gb.failedTimeoutInterval() {
+				gb.failedTimes = 0
+				return
+			}
+
+			log.Debugln("ProxyGroup: %s failed count: %d", gb.Name(), gb.failedTimes)
+			if gb.failedTimes >= gb.maxFailedTimes() {
+				log.Warnln("because %s failed multiple times, active health check", gb.Name())
+				gb.healthCheck()
+			}
+		}
+	}()
+}
+
+func (gb *GroupBase) healthCheck() {
+	if gb.failedTesting.Load() {
+		return
+	}
+
+	gb.failedTesting.Store(true)
+	wg := sync.WaitGroup{}
+	for _, proxyProvider := range gb.providers {
+		wg.Add(1)
+		proxyProvider := proxyProvider
+		go func() {
+			defer wg.Done()
+			proxyProvider.HealthCheck()
+		}()
+	}
+
+	wg.Wait()
+	gb.failedTesting.Store(false)
+	gb.failedTimes = 0
+}
+
+func (gb *GroupBase) failedIntervalTime() int64 {
+	return 5 * time.Second.Milliseconds()
+}
+
+func (gb *GroupBase) onDialSuccess() {
+	if !gb.failedTesting.Load() {
+		gb.failedTimes = 0
+	}
+}
+
+func (gb *GroupBase) maxFailedTimes() int {
+	return 5
+}
+
+func (gb *GroupBase) failedTimeoutInterval() time.Duration {
+	return 5 * time.Second
+}

adapter/outboundgroup/loadbalance.go

@@ -6,10 +6,12 @@ import (
 	"errors"
 	"fmt"
 	"net"
+	"time"
 
 	"github.com/Dreamacro/clash/adapter/outbound"
+	"github.com/Dreamacro/clash/common/cache"
+	"github.com/Dreamacro/clash/common/callback"
 	"github.com/Dreamacro/clash/common/murmur3"
-	"github.com/Dreamacro/clash/common/singledo"
 	"github.com/Dreamacro/clash/component/dialer"
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/constant/provider"
@@ -20,26 +22,25 @@ import (
 type strategyFn = func(proxies []C.Proxy, metadata *C.Metadata) C.Proxy
 
 type LoadBalance struct {
-	*outbound.Base
+	*GroupBase
 	disableUDP bool
-	single     *singledo.Single
-	filter     string
-	providers  []provider.ProxyProvider
 	strategyFn strategyFn
 }
 
 var errStrategy = errors.New("unsupported strategy")
 
 func parseStrategy(config map[string]any) string {
-	if elm, ok := config["strategy"]; ok {
+	if strategy, ok := config["strategy"].(string); ok {
-		if strategy, ok := elm.(string); ok {
 		return strategy
 	}
-	}
 	return "consistent-hashing"
 }
 
 func getKey(metadata *C.Metadata) string {
+	if metadata == nil {
+		return ""
+	}
+
 	if metadata.Host != "" {
 		// ip host
 		if ip := net.ParseIP(metadata.Host); ip != nil {
@@ -51,13 +52,23 @@ func getKey(metadata *C.Metadata) string {
 		}
 	}
 
-	if metadata.DstIP == nil {
+	if !metadata.DstIP.IsValid() {
 		return ""
 	}
 
 	return metadata.DstIP.String()
 }
 
+func getKeyWithSrcAndDst(metadata *C.Metadata) string {
+	dst := getKey(metadata)
+	src := ""
+	if metadata != nil {
+		src = metadata.SrcIP.String()
+	}
+
+	return fmt.Sprintf("%s%s", src, dst)
+}
+
 func jumpHash(key uint64, buckets int32) int32 {
 	var b, j int64
 
@@ -72,15 +83,25 @@ func jumpHash(key uint64, buckets int32) int32 {
 
 // DialContext implements C.ProxyAdapter
 func (lb *LoadBalance) DialContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (c C.Conn, err error) {
-	defer func() {
+	proxy := lb.Unwrap(metadata, true)
+	c, err = proxy.DialContext(ctx, metadata, lb.Base.DialOptions(opts...)...)
+
 	if err == nil {
 		c.AppendToChains(lb)
+	} else {
+		lb.onDialFailed(proxy.Type(), err)
 	}
-	}()
 
-	proxy := lb.Unwrap(metadata)
+	c = &callback.FirstWriteCallBackConn{
-
+		Conn: c,
-	c, err = proxy.DialContext(ctx, metadata, lb.Base.DialOptions(opts...)...)
+		Callback: func(err error) {
+			if err == nil {
+				lb.onDialSuccess()
+			} else {
+				lb.onDialFailed(proxy.Type(), err)
+			}
+		},
+	}
 	return
 }
 
@@ -92,7 +113,7 @@ func (lb *LoadBalance) ListenPacketContext(ctx context.Context, metadata *C.Meta
 		}
 	}()
 
-	proxy := lb.Unwrap(metadata)
+	proxy := lb.Unwrap(metadata, true)
 	return proxy.ListenPacketContext(ctx, metadata, lb.Base.DialOptions(opts...)...)
 }
 
@@ -102,11 +123,20 @@ func (lb *LoadBalance) SupportUDP() bool {
 }
 
 func strategyRoundRobin() strategyFn {
+	flag := true
 	idx := 0
 	return func(proxies []C.Proxy, metadata *C.Metadata) C.Proxy {
 		length := len(proxies)
 		for i := 0; i < length; i++ {
-			idx = (idx + 1) % length
+			flag = !flag
+			if flag {
+				idx = (idx - 1) % length
+			} else {
+				idx = (idx + 2) % length
+			}
+			if idx < 0 {
+				idx = idx + length
+			}
 			proxy := proxies[idx]
 			if proxy.Alive() {
 				return proxy
@@ -130,28 +160,62 @@ func strategyConsistentHashing() strategyFn {
 			}
 		}
 
+		// when availability is poor, traverse the entire list to get the available nodes
+		for _, proxy := range proxies {
+			if proxy.Alive() {
+				return proxy
+			}
+		}
+
+		return proxies[0]
+	}
+}
+
+func strategyStickySessions() strategyFn {
+	ttl := time.Minute * 10
+	maxRetry := 5
+	lruCache := cache.New[uint64, int](
+		cache.WithAge[uint64, int](int64(ttl.Seconds())),
+		cache.WithSize[uint64, int](1000))
+	return func(proxies []C.Proxy, metadata *C.Metadata) C.Proxy {
+		key := uint64(murmur3.Sum32([]byte(getKeyWithSrcAndDst(metadata))))
+		length := len(proxies)
+		idx, has := lruCache.Get(key)
+		if !has {
+			idx = int(jumpHash(key+uint64(time.Now().UnixNano()), int32(length)))
+		}
+
+		nowIdx := idx
+		for i := 1; i < maxRetry; i++ {
+			proxy := proxies[nowIdx]
+			if proxy.Alive() {
+				if nowIdx != idx {
+					lruCache.Delete(key)
+					lruCache.Set(key, nowIdx)
+				}
+
+				return proxy
+			} else {
+				nowIdx = int(jumpHash(key+uint64(time.Now().UnixNano()), int32(length)))
+			}
+		}
+
+		lruCache.Delete(key)
+		lruCache.Set(key, 0)
 		return proxies[0]
 	}
 }
 
 // Unwrap implements C.ProxyAdapter
-func (lb *LoadBalance) Unwrap(metadata *C.Metadata) C.Proxy {
+func (lb *LoadBalance) Unwrap(metadata *C.Metadata, touch bool) C.Proxy {
-	proxies := lb.proxies(true)
+	proxies := lb.GetProxies(touch)
 	return lb.strategyFn(proxies, metadata)
 }
 
-func (lb *LoadBalance) proxies(touch bool) []C.Proxy {
-	elm, _, _ := lb.single.Do(func() (any, error) {
-		return getProvidersProxies(lb.providers, touch, lb.filter), nil
-	})
-
-	return elm.([]C.Proxy)
-}
-
 // MarshalJSON implements C.ProxyAdapter
 func (lb *LoadBalance) MarshalJSON() ([]byte, error) {
-	all := []string{}
+	var all []string
-	for _, proxy := range lb.proxies(false) {
+	for _, proxy := range lb.GetProxies(false) {
 		all = append(all, proxy.Name())
 	}
 	return json.Marshal(map[string]any{
@@ -167,20 +231,25 @@ func NewLoadBalance(option *GroupCommonOption, providers []provider.ProxyProvide
 		strategyFn = strategyConsistentHashing()
 	case "round-robin":
 		strategyFn = strategyRoundRobin()
+	case "sticky-sessions":
+		strategyFn = strategyStickySessions()
 	default:
 		return nil, fmt.Errorf("%w: %s", errStrategy, strategy)
 	}
 	return &LoadBalance{
-		Base: outbound.NewBase(outbound.BaseOption{
+		GroupBase: NewGroupBase(GroupBaseOption{
+			outbound.BaseOption{
 				Name:        option.Name,
 				Type:        C.LoadBalance,
 				Interface:   option.Interface,
 				RoutingMark: option.RoutingMark,
+			},
+			option.Filter,
+			option.ExcludeFilter,
+			option.ExcludeType,
+			providers,
 		}),
-		single:     singledo.NewSingle(defaultGetProxiesDuration),
-		providers:  providers,
 		strategyFn: strategyFn,
 		disableUDP: option.DisableUDP,
-		filter:     option.Filter,
 	}, nil
 }

adapter/outboundgroup/parser.go

@@ -30,6 +30,8 @@ type GroupCommonOption struct {
 	Lazy          bool     `group:"lazy,omitempty"`
 	DisableUDP    bool     `group:"disable-udp,omitempty"`
 	Filter        string   `group:"filter,omitempty"`
+	ExcludeFilter string   `group:"exclude-filter,omitempty"`
+	ExcludeType   string   `group:"exclude-type,omitempty"`
 }
 
 func ParseProxyGroup(config map[string]any, proxyMap map[string]C.Proxy, providersMap map[string]types.ProxyProvider) (C.ProxyAdapter, error) {
@@ -75,8 +77,12 @@ func ParseProxyGroup(config map[string]any, proxyMap map[string]C.Proxy, provide
 			providers = append(providers, pd)
 			providersMap[groupName] = pd
 		} else {
-			if groupOption.URL == "" || groupOption.Interval == 0 {
+			if groupOption.URL == "" {
-				return nil, errMissHealthCheck
+				groupOption.URL = "https://cp.cloudflare.com/generate_204"
+			}
+
+			if groupOption.Interval == 0 {
+				groupOption.Interval = 300
 			}
 
 			hc := provider.NewHealthCheck(ps, groupOption.URL, uint(groupOption.Interval), groupOption.Lazy)

adapter/outboundgroup/relay.go

@@ -3,30 +3,54 @@ package outboundgroup
 import (
 	"context"
 	"encoding/json"
-	"fmt"
+	"net"
+	"net/netip"
+	"strings"
 
 	"github.com/Dreamacro/clash/adapter/outbound"
-	"github.com/Dreamacro/clash/common/singledo"
+	N "github.com/Dreamacro/clash/common/net"
 	"github.com/Dreamacro/clash/component/dialer"
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/constant/provider"
 )
 
 type Relay struct {
-	*outbound.Base
+	*GroupBase
-	single    *singledo.Single
+}
-	providers []provider.ProxyProvider
+
-	filter    string
+type proxyDialer struct {
+	proxy  C.Proxy
+	dialer C.Dialer
+}
+
+func (p proxyDialer) DialContext(ctx context.Context, network, address string) (net.Conn, error) {
+	currentMeta, err := addrToMetadata(address)
+	if err != nil {
+		return nil, err
+	}
+	if strings.Contains(network, "udp") { // should not support this operation
+		currentMeta.NetWork = C.UDP
+		pc, err := p.proxy.ListenPacketWithDialer(ctx, p.dialer, currentMeta)
+		if err != nil {
+			return nil, err
+		}
+		return N.NewBindPacketConn(pc, currentMeta.UDPAddr()), nil
+	}
+	return p.proxy.DialContextWithDialer(ctx, p.dialer, currentMeta)
+}
+
+func (p proxyDialer) ListenPacket(ctx context.Context, network, address string, rAddrPort netip.AddrPort) (net.PacketConn, error) {
+	currentMeta, err := addrToMetadata(rAddrPort.String())
+	if err != nil {
+		return nil, err
+	}
+	currentMeta.NetWork = C.UDP
+	return p.proxy.ListenPacketWithDialer(ctx, p.dialer, currentMeta)
 }
 
 // DialContext implements C.ProxyAdapter
 func (r *Relay) DialContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (C.Conn, error) {
-	var proxies []C.Proxy
+	proxies, chainProxies := r.proxies(metadata, true)
-	for _, proxy := range r.proxies(metadata, true) {
-		if proxy.Type() != C.Direct && proxy.Type() != C.Compatible {
-			proxies = append(proxies, proxy)
-		}
-	}
 
 	switch len(proxies) {
 	case 0:
@@ -34,43 +58,88 @@ func (r *Relay) DialContext(ctx context.Context, metadata *C.Metadata, opts ...d
 	case 1:
 		return proxies[0].DialContext(ctx, metadata, r.Base.DialOptions(opts...)...)
 	}
-
+	var d C.Dialer
-	first := proxies[0]
+	d = dialer.NewDialer(r.Base.DialOptions(opts...)...)
-	last := proxies[len(proxies)-1]
+	for _, proxy := range proxies[:len(proxies)-1] {
-
+		d = proxyDialer{
-	c, err := dialer.DialContext(ctx, "tcp", first.Addr(), r.Base.DialOptions(opts...)...)
+			proxy:  proxy,
-	if err != nil {
+			dialer: d,
-		return nil, fmt.Errorf("%s connect error: %w", first.Addr(), err)
 		}
-	tcpKeepAlive(c)
+	}
-
+	last := proxies[len(proxies)-1]
-	var currentMeta *C.Metadata
+	conn, err := last.DialContextWithDialer(ctx, d, metadata)
-	for _, proxy := range proxies[1:] {
-		currentMeta, err = addrToMetadata(proxy.Addr())
 	if err != nil {
 		return nil, err
 	}
 
-		c, err = first.StreamConn(c, currentMeta)
+	for i := len(chainProxies) - 2; i >= 0; i-- {
+		conn.AppendToChains(chainProxies[i])
+	}
+
+	conn.AppendToChains(r)
+
+	return conn, nil
+}
+
+// ListenPacketContext implements C.ProxyAdapter
+func (r *Relay) ListenPacketContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (_ C.PacketConn, err error) {
+	proxies, chainProxies := r.proxies(metadata, true)
+
+	switch len(proxies) {
+	case 0:
+		return outbound.NewDirect().ListenPacketContext(ctx, metadata, r.Base.DialOptions(opts...)...)
+	case 1:
+		return proxies[0].ListenPacketContext(ctx, metadata, r.Base.DialOptions(opts...)...)
+	}
+
+	var d C.Dialer
+	d = dialer.NewDialer(r.Base.DialOptions(opts...)...)
+	for _, proxy := range proxies[:len(proxies)-1] {
+		d = proxyDialer{
+			proxy:  proxy,
+			dialer: d,
+		}
+	}
+	last := proxies[len(proxies)-1]
+	pc, err := last.ListenPacketWithDialer(ctx, d, metadata)
 	if err != nil {
-			return nil, fmt.Errorf("%s connect error: %w", first.Addr(), err)
+		return nil, err
 	}
 
-		first = proxy
+	for i := len(chainProxies) - 2; i >= 0; i-- {
+		pc.AppendToChains(chainProxies[i])
 	}
 
-	c, err = last.StreamConn(c, metadata)
+	pc.AppendToChains(r)
-	if err != nil {
-		return nil, fmt.Errorf("%s connect error: %w", last.Addr(), err)
-	}
 
-	return outbound.NewConn(c, r), nil
+	return pc, nil
+}
+
+// SupportUDP implements C.ProxyAdapter
+func (r *Relay) SupportUDP() bool {
+	proxies, _ := r.proxies(nil, false)
+	if len(proxies) == 0 { // C.Direct
+		return true
+	}
+	for i := len(proxies) - 1; i >= 0; i-- {
+		proxy := proxies[i]
+		if !proxy.SupportUDP() {
+			return false
+		}
+		if proxy.SupportUOT() {
+			return true
+		}
+		if !proxy.SupportWithDialer() {
+			return false
+		}
+	}
+	return true
 }
 
 // MarshalJSON implements C.ProxyAdapter
 func (r *Relay) MarshalJSON() ([]byte, error) {
 	all := []string{}
-	for _, proxy := range r.rawProxies(false) {
+	for _, proxy := range r.GetProxies(false) {
 		all = append(all, proxy.Name())
 	}
 	return json.Marshal(map[string]any{
@@ -79,38 +148,51 @@ func (r *Relay) MarshalJSON() ([]byte, error) {
 	})
 }
 
-func (r *Relay) rawProxies(touch bool) []C.Proxy {
+func (r *Relay) proxies(metadata *C.Metadata, touch bool) ([]C.Proxy, []C.Proxy) {
-	elm, _, _ := r.single.Do(func() (any, error) {
+	rawProxies := r.GetProxies(touch)
-		return getProvidersProxies(r.providers, touch, r.filter), nil
-	})
 
-	return elm.([]C.Proxy)
+	var proxies []C.Proxy
+	var chainProxies []C.Proxy
+	var targetProxies []C.Proxy
+
+	for n, proxy := range rawProxies {
+		proxies = append(proxies, proxy)
+		chainProxies = append(chainProxies, proxy)
+		subproxy := proxy.Unwrap(metadata, touch)
+		for subproxy != nil {
+			chainProxies = append(chainProxies, subproxy)
+			proxies[n] = subproxy
+			subproxy = subproxy.Unwrap(metadata, touch)
+		}
+	}
+
+	for _, proxy := range proxies {
+		if proxy.Type() != C.Direct && proxy.Type() != C.Compatible {
+			targetProxies = append(targetProxies, proxy)
+		}
+	}
+
+	return targetProxies, chainProxies
 }
 
-func (r *Relay) proxies(metadata *C.Metadata, touch bool) []C.Proxy {
+func (r *Relay) Addr() string {
-	proxies := r.rawProxies(touch)
+	proxies, _ := r.proxies(nil, true)
-
+	return proxies[len(proxies)-1].Addr()
-	for n, proxy := range proxies {
-		subproxy := proxy.Unwrap(metadata)
-		for subproxy != nil {
-			proxies[n] = subproxy
-			subproxy = subproxy.Unwrap(metadata)
-		}
-	}
-
-	return proxies
 }
 
 func NewRelay(option *GroupCommonOption, providers []provider.ProxyProvider) *Relay {
 	return &Relay{
-		Base: outbound.NewBase(outbound.BaseOption{
+		GroupBase: NewGroupBase(GroupBaseOption{
+			outbound.BaseOption{
 				Name:        option.Name,
 				Type:        C.Relay,
 				Interface:   option.Interface,
 				RoutingMark: option.RoutingMark,
+			},
+			"",
+			"",
+			"",
+			providers,
 		}),
-		single:    singledo.NewSingle(defaultGetProxiesDuration),
-		providers: providers,
-		filter:    option.Filter,
 	}
 }

adapter/outboundgroup/selector.go

@@ -6,19 +6,15 @@ import (
 	"errors"
 
 	"github.com/Dreamacro/clash/adapter/outbound"
-	"github.com/Dreamacro/clash/common/singledo"
 	"github.com/Dreamacro/clash/component/dialer"
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/constant/provider"
 )
 
 type Selector struct {
-	*outbound.Base
+	*GroupBase
 	disableUDP bool
-	single     *singledo.Single
 	selected   string
-	filter     string
-	providers  []provider.ProxyProvider
 }
 
 // DialContext implements C.ProxyAdapter
@@ -51,7 +47,7 @@ func (s *Selector) SupportUDP() bool {
 // MarshalJSON implements C.ProxyAdapter
 func (s *Selector) MarshalJSON() ([]byte, error) {
 	all := []string{}
-	for _, proxy := range getProvidersProxies(s.providers, false, s.filter) {
+	for _, proxy := range s.GetProxies(false) {
 		all = append(all, proxy.Name())
 	}
 
@@ -67,10 +63,9 @@ func (s *Selector) Now() string {
 }
 
 func (s *Selector) Set(name string) error {
-	for _, proxy := range getProvidersProxies(s.providers, false, s.filter) {
+	for _, proxy := range s.GetProxies(false) {
 		if proxy.Name() == name {
 			s.selected = name
-			s.single.Reset()
 			return nil
 		}
 	}
@@ -79,37 +74,36 @@ func (s *Selector) Set(name string) error {
 }
 
 // Unwrap implements C.ProxyAdapter
-func (s *Selector) Unwrap(*C.Metadata) C.Proxy {
+func (s *Selector) Unwrap(metadata *C.Metadata, touch bool) C.Proxy {
-	return s.selectedProxy(true)
+	return s.selectedProxy(touch)
 }
 
 func (s *Selector) selectedProxy(touch bool) C.Proxy {
-	elm, _, _ := s.single.Do(func() (any, error) {
+	proxies := s.GetProxies(touch)
-		proxies := getProvidersProxies(s.providers, touch, s.filter)
 	for _, proxy := range proxies {
 		if proxy.Name() == s.selected {
-				return proxy, nil
+			return proxy
 		}
 	}
 
-		return proxies[0], nil
+	return proxies[0]
-	})
-
-	return elm.(C.Proxy)
 }
 
 func NewSelector(option *GroupCommonOption, providers []provider.ProxyProvider) *Selector {
 	return &Selector{
-		Base: outbound.NewBase(outbound.BaseOption{
+		GroupBase: NewGroupBase(GroupBaseOption{
+			outbound.BaseOption{
 				Name:        option.Name,
 				Type:        C.Selector,
 				Interface:   option.Interface,
 				RoutingMark: option.RoutingMark,
+			},
+			option.Filter,
+			option.ExcludeFilter,
+			option.ExcludeType,
+			providers,
 		}),
-		single:     singledo.NewSingle(defaultGetProxiesDuration),
-		providers:  providers,
 		selected:   "COMPATIBLE",
 		disableUDP: option.DisableUDP,
-		filter:     option.Filter,
 	}
 }

adapter/outboundgroup/urltest.go

@@ -3,11 +3,10 @@ package outboundgroup
 import (
 	"context"
 	"encoding/json"
-	"github.com/Dreamacro/clash/log"
-	"go.uber.org/atomic"
 	"time"
 
 	"github.com/Dreamacro/clash/adapter/outbound"
+	"github.com/Dreamacro/clash/common/callback"
 	"github.com/Dreamacro/clash/common/singledo"
 	"github.com/Dreamacro/clash/component/dialer"
 	C "github.com/Dreamacro/clash/constant"
@@ -23,16 +22,11 @@ func urlTestWithTolerance(tolerance uint16) urlTestOption {
 }
 
 type URLTest struct {
-	*outbound.Base
+	*GroupBase
 	tolerance  uint16
 	disableUDP bool
 	fastNode   C.Proxy
-	filter      string
+	fastSingle *singledo.Single[C.Proxy]
-	single      *singledo.Single
-	fastSingle  *singledo.Single
-	providers   []provider.ProxyProvider
-	failedTimes *atomic.Int32
-	failedTime  *atomic.Int64
 }
 
 func (u *URLTest) Now() string {
@@ -41,13 +35,23 @@ func (u *URLTest) Now() string {
 
 // DialContext implements C.ProxyAdapter
 func (u *URLTest) DialContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (c C.Conn, err error) {
-	c, err = u.fast(true).DialContext(ctx, metadata, u.Base.DialOptions(opts...)...)
+	proxy := u.fast(true)
+	c, err = proxy.DialContext(ctx, metadata, u.Base.DialOptions(opts...)...)
 	if err == nil {
 		c.AppendToChains(u)
-		u.failedTimes.Store(-1)
-		u.failedTime.Store(-1)
 	} else {
-		u.onDialFailed()
+		u.onDialFailed(proxy.Type(), err)
+	}
+
+	c = &callback.FirstWriteCallBackConn{
+		Conn: c,
+		Callback: func(err error) {
+			if err == nil {
+				u.onDialSuccess()
+			} else {
+				u.onDialFailed(proxy.Type(), err)
+			}
+		},
 	}
 	return c, err
 }
@@ -57,30 +61,19 @@ func (u *URLTest) ListenPacketContext(ctx context.Context, metadata *C.Metadata,
 	pc, err := u.fast(true).ListenPacketContext(ctx, metadata, u.Base.DialOptions(opts...)...)
 	if err == nil {
 		pc.AppendToChains(u)
-		u.failedTimes.Store(-1)
-		u.failedTime.Store(-1)
-	} else {
-		u.onDialFailed()
 	}
+
 	return pc, err
 }
 
 // Unwrap implements C.ProxyAdapter
-func (u *URLTest) Unwrap(*C.Metadata) C.Proxy {
+func (u *URLTest) Unwrap(metadata *C.Metadata, touch bool) C.Proxy {
-	return u.fast(true)
+	return u.fast(touch)
-}
-
-func (u *URLTest) proxies(touch bool) []C.Proxy {
-	elm, _, _ := u.single.Do(func() (any, error) {
-		return getProvidersProxies(u.providers, touch, u.filter), nil
-	})
-
-	return elm.([]C.Proxy)
 }
 
 func (u *URLTest) fast(touch bool) C.Proxy {
-	elm, _, _ := u.fastSingle.Do(func() (any, error) {
+	elm, _, shared := u.fastSingle.Do(func() (C.Proxy, error) {
-		proxies := u.proxies(touch)
+		proxies := u.GetProxies(touch)
 		fast := proxies[0]
 		min := fast.LastDelay()
 		fastNotExist := true
@@ -108,8 +101,11 @@ func (u *URLTest) fast(touch bool) C.Proxy {
 
 		return u.fastNode, nil
 	})
+	if shared && touch { // a shared fastSingle.Do() may cause providers untouched, so we touch them again
+		u.Touch()
+	}
 
-	return elm.(C.Proxy)
+	return elm
 }
 
 // SupportUDP implements C.ProxyAdapter
@@ -124,7 +120,7 @@ func (u *URLTest) SupportUDP() bool {
 // MarshalJSON implements C.ProxyAdapter
 func (u *URLTest) MarshalJSON() ([]byte, error) {
 	all := []string{}
-	for _, proxy := range u.proxies(false) {
+	for _, proxy := range u.GetProxies(false) {
 		all = append(all, proxy.Name())
 	}
 	return json.Marshal(map[string]any{
@@ -134,32 +130,6 @@ func (u *URLTest) MarshalJSON() ([]byte, error) {
 	})
 }
 
-func (u *URLTest) onDialFailed() {
-	if u.failedTime.Load() == -1 {
-		log.Warnln("%s first failed", u.Name())
-		now := time.Now().UnixMilli()
-		u.failedTime.Store(now)
-		u.failedTimes.Store(1)
-	} else {
-		if u.failedTime.Load()-time.Now().UnixMilli() > 5*1000 {
-			u.failedTimes.Store(-1)
-			u.failedTime.Store(-1)
-		} else {
-			failedCount := u.failedTimes.Inc()
-			log.Warnln("%s failed count: %d", u.Name(), failedCount)
-			if failedCount >= 5 {
-				log.Warnln("because %s failed multiple times, active health check", u.Name())
-				for _, proxyProvider := range u.providers {
-					go proxyProvider.HealthCheck()
-				}
-
-				u.failedTimes.Store(-1)
-				u.failedTime.Store(-1)
-			}
-		}
-	}
-}
-
 func parseURLTestOption(config map[string]any) []urlTestOption {
 	opts := []urlTestOption{}
 
@@ -175,19 +145,21 @@ func parseURLTestOption(config map[string]any) []urlTestOption {
 
 func NewURLTest(option *GroupCommonOption, providers []provider.ProxyProvider, options ...urlTestOption) *URLTest {
 	urlTest := &URLTest{
-		Base: outbound.NewBase(outbound.BaseOption{
+		GroupBase: NewGroupBase(GroupBaseOption{
+			outbound.BaseOption{
 				Name:        option.Name,
 				Type:        C.URLTest,
 				Interface:   option.Interface,
 				RoutingMark: option.RoutingMark,
+			},
+
+			option.Filter,
+			option.ExcludeFilter,
+			option.ExcludeType,
+			providers,
 		}),
-		single:      singledo.NewSingle(defaultGetProxiesDuration),
+		fastSingle: singledo.NewSingle[C.Proxy](time.Second * 10),
-		fastSingle:  singledo.NewSingle(time.Second * 10),
-		providers:   providers,
 		disableUDP: option.DisableUDP,
-		filter:      option.Filter,
-		failedTimes: atomic.NewInt32(-1),
-		failedTime:  atomic.NewInt64(-1),
 	}
 
 	for _, option := range options {

adapter/outboundgroup/util.go

@@ -3,6 +3,7 @@ package outboundgroup
 import (
 	"fmt"
 	"net"
+	"net/netip"
 	"time"
 
 	C "github.com/Dreamacro/clash/constant"
@@ -15,37 +16,29 @@ func addrToMetadata(rawAddress string) (addr *C.Metadata, err error) {
 		return
 	}
 
-	ip := net.ParseIP(host)
+	if ip, err := netip.ParseAddr(host); err != nil {
-	if ip == nil {
 		addr = &C.Metadata{
-			AddrType: C.AtypDomainName,
 			Host:    host,
-			DstIP:    nil,
 			DstPort: port,
 		}
-		return
+	} else {
-	} else if ip4 := ip.To4(); ip4 != nil {
 		addr = &C.Metadata{
-			AddrType: C.AtypIPv4,
 			Host:    "",
-			DstIP:    ip4,
+			DstIP:   ip.Unmap(),
 			DstPort: port,
 		}
-		return
 	}
 
-	addr = &C.Metadata{
-		AddrType: C.AtypIPv6,
-		Host:     "",
-		DstIP:    ip,
-		DstPort:  port,
-	}
 	return
 }
 
 func tcpKeepAlive(c net.Conn) {
 	if tcp, ok := c.(*net.TCPConn); ok {
-		tcp.SetKeepAlive(true)
+		_ = tcp.SetKeepAlive(true)
-		tcp.SetKeepAlivePeriod(30 * time.Second)
+		_ = tcp.SetKeepAlivePeriod(30 * time.Second)
 	}
 }
+
+type SelectAble interface {
+	Set(string) error
+}

adapter/parser.go

@@ -3,13 +3,15 @@ package adapter
 import (
 	"fmt"
 
+	tlsC "github.com/Dreamacro/clash/component/tls"
+
 	"github.com/Dreamacro/clash/adapter/outbound"
 	"github.com/Dreamacro/clash/common/structure"
 	C "github.com/Dreamacro/clash/constant"
 )
 
 func ParseProxy(mapping map[string]any) (C.Proxy, error) {
-	decoder := structure.NewDecoder(structure.Option{TagName: "proxy", WeaklyTypedInput: true})
+	decoder := structure.NewDecoder(structure.Option{TagName: "proxy", WeaklyTypedInput: true, KeyReplacer: structure.DefaultKeyReplacer})
 	proxyType, existType := mapping["type"].(string)
 	if !existType {
 		return nil, fmt.Errorf("missing type")
@@ -40,14 +42,14 @@ func ParseProxy(mapping map[string]any) (C.Proxy, error) {
 		if err != nil {
 			break
 		}
-		proxy = outbound.NewSocks5(*socksOption)
+		proxy, err = outbound.NewSocks5(*socksOption)
 	case "http":
 		httpOption := &outbound.HttpOption{}
 		err = decoder.Decode(mapping, httpOption)
 		if err != nil {
 			break
 		}
-		proxy = outbound.NewHttp(*httpOption)
+		proxy, err = outbound.NewHttp(*httpOption)
 	case "vmess":
 		vmessOption := &outbound.VmessOption{
 			HTTPOpts: outbound.HTTPOptions{
@@ -55,6 +57,11 @@ func ParseProxy(mapping map[string]any) (C.Proxy, error) {
 				Path:   []string{"/"},
 			},
 		}
+
+		if GlobalUtlsClient := tlsC.GetGlobalFingerprint(); len(GlobalUtlsClient) != 0 {
+			vmessOption.ClientFingerprint = GlobalUtlsClient
+		}
+
 		err = decoder.Decode(mapping, vmessOption)
 		if err != nil {
 			break
@@ -62,6 +69,11 @@ func ParseProxy(mapping map[string]any) (C.Proxy, error) {
 		proxy, err = outbound.NewVmess(*vmessOption)
 	case "vless":
 		vlessOption := &outbound.VlessOption{}
+
+		if GlobalUtlsClient := tlsC.GetGlobalFingerprint(); len(GlobalUtlsClient) != 0 {
+			vlessOption.ClientFingerprint = GlobalUtlsClient
+		}
+
 		err = decoder.Decode(mapping, vlessOption)
 		if err != nil {
 			break
@@ -76,11 +88,37 @@ func ParseProxy(mapping map[string]any) (C.Proxy, error) {
 		proxy, err = outbound.NewSnell(*snellOption)
 	case "trojan":
 		trojanOption := &outbound.TrojanOption{}
+
+		if GlobalUtlsClient := tlsC.GetGlobalFingerprint(); len(GlobalUtlsClient) != 0 {
+			trojanOption.ClientFingerprint = GlobalUtlsClient
+		}
+
 		err = decoder.Decode(mapping, trojanOption)
 		if err != nil {
 			break
 		}
 		proxy, err = outbound.NewTrojan(*trojanOption)
+	case "hysteria":
+		hyOption := &outbound.HysteriaOption{}
+		err = decoder.Decode(mapping, hyOption)
+		if err != nil {
+			break
+		}
+		proxy, err = outbound.NewHysteria(*hyOption)
+	case "wireguard":
+		wgOption := &outbound.WireGuardOption{}
+		err = decoder.Decode(mapping, wgOption)
+		if err != nil {
+			break
+		}
+		proxy, err = outbound.NewWireGuard(*wgOption)
+	case "tuic":
+		tuicOption := &outbound.TuicOption{}
+		err = decoder.Decode(mapping, tuicOption)
+		if err != nil {
+			break
+		}
+		proxy, err = outbound.NewTuic(*tuicOption)
 	default:
 		return nil, fmt.Errorf("unsupport proxy type: %s", proxyType)
 	}

adapter/provider/fetcher.go

@@ -1,185 +0,0 @@
-package provider
-
-import (
-	"bytes"
-	"crypto/md5"
-	"os"
-	"path/filepath"
-	"time"
-
-	types "github.com/Dreamacro/clash/constant/provider"
-	"github.com/Dreamacro/clash/log"
-)
-
-var (
-	fileMode os.FileMode = 0o666
-	dirMode  os.FileMode = 0o755
-)
-
-type parser = func([]byte) (any, error)
-
-type fetcher struct {
-	name      string
-	vehicle   types.Vehicle
-	updatedAt *time.Time
-	ticker    *time.Ticker
-	done      chan struct{}
-	hash      [16]byte
-	parser    parser
-	onUpdate  func(any)
-}
-
-func (f *fetcher) Name() string {
-	return f.name
-}
-
-func (f *fetcher) VehicleType() types.VehicleType {
-	return f.vehicle.Type()
-}
-
-func (f *fetcher) Initial() (any, error) {
-	var (
-		buf     []byte
-		err     error
-		isLocal 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
-	} else {
-		buf, err = f.vehicle.Read()
-	}
-
-	if err != nil {
-		return nil, err
-	}
-
-	proxies, err := f.parser(buf)
-	if err != nil {
-		if !isLocal {
-			return nil, err
-		}
-
-		// parse local file error, fallback to remote
-		buf, err = f.vehicle.Read()
-		if err != nil {
-			return nil, err
-		}
-
-		proxies, err = f.parser(buf)
-		if err != nil {
-			return nil, err
-		}
-
-		isLocal = false
-	}
-
-	if f.vehicle.Type() != types.File && !isLocal {
-		if err := safeWrite(f.vehicle.Path(), buf); err != nil {
-			return nil, err
-		}
-	}
-
-	f.hash = md5.Sum(buf)
-
-	// pull proxies automatically
-	if f.ticker != nil {
-		go f.pullLoop()
-	}
-
-	return proxies, nil
-}
-
-func (f *fetcher) Update() (any, bool, error) {
-	buf, err := f.vehicle.Read()
-	if err != nil {
-		return nil, false, err
-	}
-
-	now := time.Now()
-	hash := md5.Sum(buf)
-	if bytes.Equal(f.hash[:], hash[:]) {
-		f.updatedAt = &now
-		os.Chtimes(f.vehicle.Path(), now, now)
-		return nil, true, nil
-	}
-
-	proxies, err := f.parser(buf)
-	if err != nil {
-		return nil, false, err
-	}
-
-	if f.vehicle.Type() != types.File {
-		if err := safeWrite(f.vehicle.Path(), buf); err != nil {
-			return nil, false, err
-		}
-	}
-
-	f.updatedAt = &now
-	f.hash = hash
-
-	return proxies, false, nil
-}
-
-func (f *fetcher) Destroy() error {
-	if f.ticker != nil {
-		f.done <- struct{}{}
-	}
-	return nil
-}
-
-func (f *fetcher) pullLoop() {
-	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)
-			}
-		case <-f.done:
-			f.ticker.Stop()
-			return
-		}
-	}
-}
-
-func safeWrite(path string, buf []byte) error {
-	dir := filepath.Dir(path)
-
-	if _, err := os.Stat(dir); os.IsNotExist(err) {
-		if err := os.MkdirAll(dir, dirMode); err != nil {
-			return err
-		}
-	}
-
-	return os.WriteFile(path, buf, fileMode)
-}
-
-func newFetcher(name string, interval time.Duration, vehicle types.Vehicle, parser parser, onUpdate func(any)) *fetcher {
-	var ticker *time.Ticker
-	if interval != 0 {
-		ticker = time.NewTicker(interval)
-	}
-
-	return &fetcher{
-		name:     name,
-		ticker:   ticker,
-		vehicle:  vehicle,
-		parser:   parser,
-		done:     make(chan struct{}, 1),
-		onUpdate: onUpdate,
-	}
-}

adapter/provider/healthcheck.go

@@ -5,8 +5,11 @@ import (
 	"time"
 
 	"github.com/Dreamacro/clash/common/batch"
+	"github.com/Dreamacro/clash/common/singledo"
 	C "github.com/Dreamacro/clash/constant"
+	"github.com/Dreamacro/clash/log"
 
+	"github.com/gofrs/uuid"
 	"go.uber.org/atomic"
 )
 
@@ -26,25 +29,21 @@ type HealthCheck struct {
 	lazy      bool
 	lastTouch *atomic.Int64
 	done      chan struct{}
+	singleDo  *singledo.Single[struct{}]
 }
 
 func (hc *HealthCheck) process() {
 	ticker := time.NewTicker(time.Duration(hc.interval) * time.Second)
 
 	go func() {
-		t := time.NewTicker(30 * time.Second)
+		time.Sleep(30 * time.Second)
-		<-t.C
+		hc.lazyCheck()
-		t.Stop()
-		hc.check()
 	}()
 
 	for {
 		select {
 		case <-ticker.C:
-			now := time.Now().Unix()
+			hc.lazyCheck()
-			if !hc.lazy || now-hc.lastTouch.Load() < int64(hc.interval) {
-				hc.check()
-			}
 		case <-hc.done:
 			ticker.Stop()
 			return
@@ -52,6 +51,17 @@ func (hc *HealthCheck) process() {
 	}
 }
 
+func (hc *HealthCheck) lazyCheck() bool {
+	now := time.Now().Unix()
+	if !hc.lazy || now-hc.lastTouch.Load() < int64(hc.interval) {
+		hc.check()
+		return true
+	} else {
+		log.Debugln("Skip once health check because we are lazy")
+		return false
+	}
+}
+
 func (hc *HealthCheck) setProxy(proxies []C.Proxy) {
 	hc.proxies = proxies
 }
@@ -65,17 +75,29 @@ func (hc *HealthCheck) touch() {
 }
 
 func (hc *HealthCheck) check() {
-	b, _ := batch.New(context.Background(), batch.WithConcurrencyNum(10))
+	_, _, _ = hc.singleDo.Do(func() (struct{}, error) {
+		id := ""
+		if uid, err := uuid.NewV4(); err == nil {
+			id = uid.String()
+		}
+		log.Debugln("Start New Health Checking {%s}", id)
+		b, _ := batch.New[bool](context.Background(), batch.WithConcurrencyNum[bool](10))
 		for _, proxy := range hc.proxies {
 			p := proxy
-		b.Go(p.Name(), func() (any, error) {
+			b.Go(p.Name(), func() (bool, error) {
 				ctx, cancel := context.WithTimeout(context.Background(), defaultURLTestTimeout)
 				defer cancel()
-			p.URLTest(ctx, hc.url)
+				log.Debugln("Health Checking %s {%s}", p.Name(), id)
-			return nil, nil
+				_, _ = p.URLTest(ctx, hc.url)
+				log.Debugln("Health Checked %s : %t %d ms {%s}", p.Name(), p.Alive(), p.LastDelay(), id)
+				return false, nil
 			})
 		}
+
 		b.Wait()
+		log.Debugln("Finish A Health Checking {%s}", id)
+		return struct{}{}, nil
+	})
 }
 
 func (hc *HealthCheck) close() {
@@ -90,5 +112,6 @@ func NewHealthCheck(proxies []C.Proxy, url string, interval uint, lazy bool) *He
 		lazy:      lazy,
 		lastTouch: atomic.NewInt64(0),
 		done:      make(chan struct{}, 1),
+		singleDo:  singledo.NewSingle[struct{}](time.Second),
 	}
 }

adapter/provider/parser.go

@@ -6,6 +6,7 @@ import (
 	"time"
 
 	"github.com/Dreamacro/clash/common/structure"
+	"github.com/Dreamacro/clash/component/resource"
 	C "github.com/Dreamacro/clash/constant"
 	types "github.com/Dreamacro/clash/constant/provider"
 )
@@ -25,6 +26,8 @@ type proxyProviderSchema struct {
 	URL           string            `provider:"url,omitempty"`
 	Interval      int               `provider:"interval,omitempty"`
 	Filter        string            `provider:"filter,omitempty"`
+	ExcludeFilter string            `provider:"exclude-filter,omitempty"`
+	ExcludeType   string            `provider:"exclude-type,omitempty"`
 	HealthCheck   healthCheckSchema `provider:"health-check,omitempty"`
 }
 
@@ -51,14 +54,17 @@ func ParseProxyProvider(name string, mapping map[string]any) (types.ProxyProvide
 	var vehicle types.Vehicle
 	switch schema.Type {
 	case "file":
-		vehicle = NewFileVehicle(path)
+		vehicle = resource.NewFileVehicle(path)
 	case "http":
-		vehicle = NewHTTPVehicle(schema.URL, path)
+		vehicle = resource.NewHTTPVehicle(schema.URL, path)
 	default:
 		return nil, fmt.Errorf("%w: %s", errVehicleType, schema.Type)
 	}
 
 	interval := time.Duration(uint(schema.Interval)) * time.Second
 	filter := schema.Filter
-	return NewProxySetProvider(name, interval, filter, vehicle, hc)
+	excludeFilter := schema.ExcludeFilter
+	excludeType := schema.ExcludeType
+
+	return NewProxySetProvider(name, interval, filter, excludeFilter, excludeType, vehicle, hc)
 }

adapter/provider/provider.go

@@ -1,18 +1,25 @@
 package provider
 
 import (
+	"context"
 	"encoding/json"
 	"errors"
 	"fmt"
-	"github.com/dlclark/regexp2"
+	"net/http"
 	"runtime"
+	"strings"
 	"time"
 
 	"github.com/Dreamacro/clash/adapter"
+	"github.com/Dreamacro/clash/common/convert"
+	clashHttp "github.com/Dreamacro/clash/component/http"
+	"github.com/Dreamacro/clash/component/resource"
 	C "github.com/Dreamacro/clash/constant"
 	types "github.com/Dreamacro/clash/constant/provider"
+	"github.com/Dreamacro/clash/log"
 
-	"gopkg.in/yaml.v2"
+	"github.com/dlclark/regexp2"
+	"gopkg.in/yaml.v3"
 )
 
 const (
@@ -23,15 +30,17 @@ type ProxySchema struct {
 	Proxies []map[string]any `yaml:"proxies"`
 }
 
-// for auto gc
+// ProxySetProvider for auto gc
 type ProxySetProvider struct {
 	*proxySetProvider
 }
 
 type proxySetProvider struct {
-	*fetcher
+	*resource.Fetcher[[]C.Proxy]
 	proxies          []C.Proxy
 	healthCheck      *HealthCheck
+	version          uint32
+	subscriptionInfo *SubscriptionInfo
 }
 
 func (pp *proxySetProvider) MarshalJSON() ([]byte, error) {
@@ -40,13 +49,17 @@ func (pp *proxySetProvider) MarshalJSON() ([]byte, error) {
 		"type":             pp.Type().String(),
 		"vehicleType":      pp.VehicleType().String(),
 		"proxies":          pp.Proxies(),
-		//TODO maybe error because year value overflow
+		"updatedAt":        pp.UpdatedAt,
-		"updatedAt": pp.updatedAt,
+		"subscriptionInfo": pp.subscriptionInfo,
 	})
 }
 
+func (pp *proxySetProvider) Version() uint32 {
+	return pp.version
+}
+
 func (pp *proxySetProvider) Name() string {
-	return pp.name
+	return pp.Fetcher.Name()
 }
 
 func (pp *proxySetProvider) HealthCheck() {
@@ -54,24 +67,19 @@ func (pp *proxySetProvider) HealthCheck() {
 }
 
 func (pp *proxySetProvider) Update() error {
-	elm, same, err := pp.fetcher.Update()
+	elm, same, err := pp.Fetcher.Update()
 	if err == nil && !same {
-		pp.onUpdate(elm)
+		pp.OnUpdate(elm)
 	}
 	return err
 }
 
 func (pp *proxySetProvider) Initial() error {
-	elm, err := pp.fetcher.Initial()
+	elm, err := pp.Fetcher.Initial()
 	if err != nil {
 		return err
 	}
-
+	pp.OnUpdate(elm)
-	pp.onUpdate(elm)
-	if pp.healthCheck.auto() {
-		go pp.healthCheck.process()
-	}
-
 	return nil
 }
 
@@ -83,85 +91,95 @@ func (pp *proxySetProvider) Proxies() []C.Proxy {
 	return pp.proxies
 }
 
-func (pp *proxySetProvider) ProxiesWithTouch() []C.Proxy {
+func (pp *proxySetProvider) Touch() {
 	pp.healthCheck.touch()
-	return pp.Proxies()
 }
 
 func (pp *proxySetProvider) setProxies(proxies []C.Proxy) {
 	pp.proxies = proxies
 	pp.healthCheck.setProxy(proxies)
 	if pp.healthCheck.auto() {
-		go pp.healthCheck.check()
+		defer func() { go pp.healthCheck.lazyCheck() }()
 	}
 }
 
+func (pp *proxySetProvider) getSubscriptionInfo() {
+	if pp.VehicleType() != types.HTTP {
+		return
+	}
+	go func() {
+		ctx, cancel := context.WithTimeout(context.Background(), time.Second*90)
+		defer cancel()
+		resp, err := clashHttp.HttpRequest(ctx, pp.Vehicle().(*resource.HTTPVehicle).Url(),
+			http.MethodGet, http.Header{"User-Agent": {"clash"}}, nil)
+		if err != nil {
+			return
+		}
+		defer resp.Body.Close()
+
+		userInfoStr := strings.TrimSpace(resp.Header.Get("subscription-userinfo"))
+		if userInfoStr == "" {
+			resp2, err := clashHttp.HttpRequest(ctx, pp.Vehicle().(*resource.HTTPVehicle).Url(),
+				http.MethodGet, http.Header{"User-Agent": {"Quantumultx"}}, nil)
+			if err != nil {
+				return
+			}
+			defer resp2.Body.Close()
+			userInfoStr = strings.TrimSpace(resp2.Header.Get("subscription-userinfo"))
+			if userInfoStr == "" {
+				return
+			}
+		}
+		pp.subscriptionInfo, err = NewSubscriptionInfo(userInfoStr)
+		if err != nil {
+			log.Warnln("[Provider] get subscription-userinfo: %e", err)
+		}
+	}()
+}
+
 func stopProxyProvider(pd *ProxySetProvider) {
 	pd.healthCheck.close()
-	pd.fetcher.Destroy()
+	_ = pd.Fetcher.Destroy()
 }
 
-func NewProxySetProvider(name string, interval time.Duration, filter string, vehicle types.Vehicle, hc *HealthCheck) (*ProxySetProvider, error) {
+func NewProxySetProvider(name string, interval time.Duration, filter string, excludeFilter string, excludeType string, vehicle types.Vehicle, hc *HealthCheck) (*ProxySetProvider, error) {
-	//filterReg, err := regexp.Compile(filter)
+	excludeFilterReg, err := regexp2.Compile(excludeFilter, 0)
+	if err != nil {
+		return nil, fmt.Errorf("invalid excludeFilter regex: %w", err)
+	}
+	var excludeTypeArray []string
+	if excludeType != "" {
+		excludeTypeArray = strings.Split(excludeType, "|")
+	}
+
+	var filterRegs []*regexp2.Regexp
+	for _, filter := range strings.Split(filter, "`") {
 		filterReg, err := regexp2.Compile(filter, 0)
 		if err != nil {
 			return nil, fmt.Errorf("invalid filter regex: %w", err)
 		}
+		filterRegs = append(filterRegs, filterReg)
+	}
+
+	if hc.auto() {
+		go hc.process()
+	}
 
 	pd := &proxySetProvider{
 		proxies:     []C.Proxy{},
 		healthCheck: hc,
 	}
 
-	onUpdate := func(elm any) {
+	fetcher := resource.NewFetcher[[]C.Proxy](name, interval, vehicle, proxiesParseAndFilter(filter, excludeFilter, excludeTypeArray, filterRegs, excludeFilterReg), proxiesOnUpdate(pd))
-		ret := elm.([]C.Proxy)
+	pd.Fetcher = fetcher
-		pd.setProxies(ret)
-	}
-
-	proxiesParseAndFilter := func(buf []byte) (any, error) {
-		schema := &ProxySchema{}
-
-		if err := yaml.Unmarshal(buf, schema); err != nil {
-			return nil, err
-		}
-
-		if schema.Proxies == nil {
-			return nil, errors.New("file must have a `proxies` field")
-		}
-
-		proxies := []C.Proxy{}
-		for idx, mapping := range schema.Proxies {
-			name, ok := mapping["name"]
-			mat, _ := filterReg.FindStringMatch(name.(string))
-			if ok && len(filter) > 0 && mat == nil {
-				continue
-			}
-			proxy, err := adapter.ParseProxy(mapping)
-			if err != nil {
-				return nil, fmt.Errorf("proxy %d error: %w", idx, err)
-			}
-			proxies = append(proxies, proxy)
-		}
-
-		if len(proxies) == 0 {
-			if len(filter) > 0 {
-				return nil, errors.New("doesn't match any proxy, please check your filter")
-			}
-			return nil, errors.New("file doesn't have any proxy")
-		}
-
-		return proxies, nil
-	}
-
-	fetcher := newFetcher(name, interval, vehicle, proxiesParseAndFilter, onUpdate)
-	pd.fetcher = fetcher
 
+	pd.getSubscriptionInfo()
 	wrapper := &ProxySetProvider{pd}
 	runtime.SetFinalizer(wrapper, stopProxyProvider)
 	return wrapper, nil
 }
 
-// for auto gc
+// CompatibleProvider for auto gc
 type CompatibleProvider struct {
 	*compatibleProvider
 }
@@ -170,6 +188,7 @@ type compatibleProvider struct {
 	name        string
 	healthCheck *HealthCheck
 	proxies     []C.Proxy
+	version     uint32
 }
 
 func (cp *compatibleProvider) MarshalJSON() ([]byte, error) {
@@ -181,6 +200,10 @@ func (cp *compatibleProvider) MarshalJSON() ([]byte, error) {
 	})
 }
 
+func (cp *compatibleProvider) Version() uint32 {
+	return cp.version
+}
+
 func (cp *compatibleProvider) Name() string {
 	return cp.name
 }
@@ -194,10 +217,6 @@ func (cp *compatibleProvider) Update() error {
 }
 
 func (cp *compatibleProvider) Initial() error {
-	if cp.healthCheck.auto() {
-		go cp.healthCheck.process()
-	}
-
 	return nil
 }
 
@@ -213,9 +232,8 @@ func (cp *compatibleProvider) Proxies() []C.Proxy {
 	return cp.proxies
 }
 
-func (cp *compatibleProvider) ProxiesWithTouch() []C.Proxy {
+func (cp *compatibleProvider) Touch() {
 	cp.healthCheck.touch()
-	return cp.Proxies()
 }
 
 func stopCompatibleProvider(pd *CompatibleProvider) {
@@ -227,6 +245,10 @@ func NewCompatibleProvider(name string, proxies []C.Proxy, hc *HealthCheck) (*Co
 		return nil, errors.New("provider need one proxy at least")
 	}
 
+	if hc.auto() {
+		go hc.process()
+	}
+
 	pd := &compatibleProvider{
 		name:        name,
 		proxies:     proxies,
@@ -237,3 +259,94 @@ func NewCompatibleProvider(name string, proxies []C.Proxy, hc *HealthCheck) (*Co
 	runtime.SetFinalizer(wrapper, stopCompatibleProvider)
 	return wrapper, nil
 }
+
+func proxiesOnUpdate(pd *proxySetProvider) func([]C.Proxy) {
+	return func(elm []C.Proxy) {
+		pd.setProxies(elm)
+		pd.version += 1
+		pd.getSubscriptionInfo()
+	}
+}
+
+func proxiesParseAndFilter(filter string, excludeFilter string, excludeTypeArray []string, filterRegs []*regexp2.Regexp, excludeFilterReg *regexp2.Regexp) resource.Parser[[]C.Proxy] {
+	return func(buf []byte) ([]C.Proxy, error) {
+		schema := &ProxySchema{}
+
+		if err := yaml.Unmarshal(buf, schema); err != nil {
+			proxies, err1 := convert.ConvertsV2Ray(buf)
+			if err1 != nil {
+				return nil, fmt.Errorf("%s, %w", err.Error(), err1)
+			}
+			schema.Proxies = proxies
+		}
+
+		if schema.Proxies == nil {
+			return nil, errors.New("file must have a `proxies` field")
+		}
+
+		proxies := []C.Proxy{}
+		proxiesSet := map[string]struct{}{}
+		for _, filterReg := range filterRegs {
+			for idx, mapping := range schema.Proxies {
+				if nil != excludeTypeArray && len(excludeTypeArray) > 0 {
+					mType, ok := mapping["type"]
+					if !ok {
+						continue
+					}
+					pType, ok := mType.(string)
+					if !ok {
+						continue
+					}
+					flag := false
+					for i := range excludeTypeArray {
+						if strings.EqualFold(pType, excludeTypeArray[i]) {
+							flag = true
+							break
+						}
+
+					}
+					if flag {
+						continue
+					}
+
+				}
+				mName, ok := mapping["name"]
+				if !ok {
+					continue
+				}
+				name, ok := mName.(string)
+				if !ok {
+					continue
+				}
+				if len(excludeFilter) > 0 {
+					if mat, _ := excludeFilterReg.FindStringMatch(name); mat != nil {
+						continue
+					}
+				}
+				if len(filter) > 0 {
+					if mat, _ := filterReg.FindStringMatch(name); mat == nil {
+						continue
+					}
+				}
+				if _, ok := proxiesSet[name]; ok {
+					continue
+				}
+				proxy, err := adapter.ParseProxy(mapping)
+				if err != nil {
+					return nil, fmt.Errorf("proxy %d error: %w", idx, err)
+				}
+				proxiesSet[name] = struct{}{}
+				proxies = append(proxies, proxy)
+			}
+		}
+
+		if len(proxies) == 0 {
+			if len(filter) > 0 {
+				return nil, errors.New("doesn't match any proxy, please check your filter")
+			}
+			return nil, errors.New("file doesn't have any proxy")
+		}
+
+		return proxies, nil
+	}
+}

adapter/provider/subscription_info.go

@@ -0,0 +1,57 @@
+package provider
+
+import (
+	"github.com/dlclark/regexp2"
+	"strconv"
+	"strings"
+)
+
+type SubscriptionInfo struct {
+	Upload   int64
+	Download int64
+	Total    int64
+	Expire   int64
+}
+
+func NewSubscriptionInfo(str string) (si *SubscriptionInfo, err error) {
+	si = &SubscriptionInfo{}
+	str = strings.ToLower(str)
+	reTraffic := regexp2.MustCompile("upload=(\\d+); download=(\\d+); total=(\\d+)", 0)
+	reExpire := regexp2.MustCompile("expire=(\\d+)", 0)
+
+	match, err := reTraffic.FindStringMatch(str)
+	if err != nil || match == nil {
+		return nil, err
+	}
+	group := match.Groups()
+	si.Upload, err = str2uint64(group[1].String())
+	if err != nil {
+		return nil, err
+	}
+
+	si.Download, err = str2uint64(group[2].String())
+	if err != nil {
+		return nil, err
+	}
+
+	si.Total, err = str2uint64(group[3].String())
+	if err != nil {
+		return nil, err
+	}
+
+	match, _ = reExpire.FindStringMatch(str)
+	if match != nil {
+		group = match.Groups()
+		si.Expire, err = str2uint64(group[1].String())
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return
+}
+
+func str2uint64(str string) (int64, error) {
+	i, err := strconv.ParseInt(str, 10, 64)
+	return i, err
+}

adapter/provider/vehicle.go

@@ -1,109 +0,0 @@
-package provider
-
-import (
-	"context"
-	"github.com/Dreamacro/clash/component/dialer"
-	"github.com/Dreamacro/clash/listener/inner"
-	"io"
-	"net"
-	"net/http"
-	"net/url"
-	"os"
-	"time"
-
-	netHttp "github.com/Dreamacro/clash/common/net"
-	types "github.com/Dreamacro/clash/constant/provider"
-)
-
-type FileVehicle struct {
-	path string
-}
-
-func (f *FileVehicle) Type() types.VehicleType {
-	return types.File
-}
-
-func (f *FileVehicle) Path() string {
-	return f.path
-}
-
-func (f *FileVehicle) Read() ([]byte, error) {
-	return os.ReadFile(f.path)
-}
-
-func NewFileVehicle(path string) *FileVehicle {
-	return &FileVehicle{path: path}
-}
-
-type HTTPVehicle struct {
-	url  string
-	path string
-}
-
-func (h *HTTPVehicle) Type() types.VehicleType {
-	return types.HTTP
-}
-
-func (h *HTTPVehicle) Path() string {
-	return h.path
-}
-
-func (h *HTTPVehicle) Read() ([]byte, error) {
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second*20)
-	defer cancel()
-
-	uri, err := url.Parse(h.url)
-	if err != nil {
-		return nil, err
-	}
-
-	req, err := http.NewRequest(http.MethodGet, uri.String(), nil)
-	req.Header.Set("User-Agent", netHttp.UA)
-
-	if err != nil {
-		return nil, err
-	}
-
-	if user := uri.User; user != nil {
-		password, _ := user.Password()
-		req.SetBasicAuth(user.Username(), password)
-	}
-
-	req = req.WithContext(ctx)
-
-	transport := &http.Transport{
-		// from http.DefaultTransport
-		MaxIdleConns:          100,
-		IdleConnTimeout:       90 * time.Second,
-		TLSHandshakeTimeout:   10 * time.Second,
-		ExpectContinueTimeout: 1 * time.Second,
-		DialContext: func(ctx context.Context, network, address string) (net.Conn, error) {
-			conn := inner.HandleTcp(address, uri.Hostname())
-			return conn, nil
-		},
-	}
-
-	client := http.Client{Transport: transport}
-	resp, err := client.Do(req)
-	if err != nil {
-		transport.DialContext = func(ctx context.Context, network, address string) (net.Conn, error) {
-			return dialer.DialContext(ctx, network, address)
-		}
-		resp, err = client.Do(req)
-		if err != nil {
-			return nil, err
-		}
-	}
-	defer resp.Body.Close()
-
-	buf, err := io.ReadAll(resp.Body)
-	if err != nil {
-		return nil, err
-	}
-
-	return buf, nil
-}
-
-func NewHTTPVehicle(url string, path string) *HTTPVehicle {
-	return &HTTPVehicle{url, path}
-}

check_amd64.sh

@@ -0,0 +1,28 @@
+#!/bin/sh
+flags=$(grep '^flags\b' </proc/cpuinfo | head -n 1)
+flags=" ${flags#*:} "
+
+has_flags () {
+  for flag; do
+    case "$flags" in
+      *" $flag "*) :;;
+      *) return 1;;
+    esac
+  done
+}
+
+determine_level () {
+  level=0
+  has_flags lm cmov cx8 fpu fxsr mmx syscall sse2 || return 0
+  level=1
+  has_flags cx16 lahf_lm popcnt sse4_1 sse4_2 ssse3 || return 0
+  level=2
+  has_flags avx avx2 bmi1 bmi2 f16c fma abm movbe xsave || return 0
+  level=3
+  has_flags avx512f avx512bw avx512cd avx512dq avx512vl || return 0
+  level=4
+}
+
+determine_level
+echo "Your CPU supports amd64-v$level"
+return $level

common/batch/batch.go

@@ -5,10 +5,10 @@ import (
 	"sync"
 )
 
-type Option = func(b *Batch)
+type Option[T any] func(b *Batch[T])
 
-type Result struct {
+type Result[T any] struct {
-	Value any
+	Value T
 	Err   error
 }
 
@@ -17,8 +17,8 @@ type Error struct {
 	Err error
 }
 
-func WithConcurrencyNum(n int) Option {
+func WithConcurrencyNum[T any](n int) Option[T] {
-	return func(b *Batch) {
+	return func(b *Batch[T]) {
 		q := make(chan struct{}, n)
 		for i := 0; i < n; i++ {
 			q <- struct{}{}
@@ -28,8 +28,8 @@ func WithConcurrencyNum(n int) Option {
 }
 
 // Batch similar to errgroup, but can control the maximum number of concurrent
-type Batch struct {
+type Batch[T any] struct {
-	result map[string]Result
+	result map[string]Result[T]
 	queue  chan struct{}
 	wg     sync.WaitGroup
 	mux    sync.Mutex
@@ -38,7 +38,7 @@ type Batch struct {
 	cancel func()
 }
 
-func (b *Batch) Go(key string, fn func() (any, error)) {
+func (b *Batch[T]) Go(key string, fn func() (T, error)) {
 	b.wg.Add(1)
 	go func() {
 		defer b.wg.Done()
@@ -59,14 +59,14 @@ func (b *Batch) Go(key string, fn func() (any, error)) {
 			})
 		}
 
-		ret := Result{value, err}
+		ret := Result[T]{value, err}
 		b.mux.Lock()
 		defer b.mux.Unlock()
 		b.result[key] = ret
 	}()
 }
 
-func (b *Batch) Wait() *Error {
+func (b *Batch[T]) Wait() *Error {
 	b.wg.Wait()
 	if b.cancel != nil {
 		b.cancel()
@@ -74,26 +74,26 @@ func (b *Batch) Wait() *Error {
 	return b.err
 }
 
-func (b *Batch) WaitAndGetResult() (map[string]Result, *Error) {
+func (b *Batch[T]) WaitAndGetResult() (map[string]Result[T], *Error) {
 	err := b.Wait()
 	return b.Result(), err
 }
 
-func (b *Batch) Result() map[string]Result {
+func (b *Batch[T]) Result() map[string]Result[T] {
 	b.mux.Lock()
 	defer b.mux.Unlock()
-	copy := map[string]Result{}
+	copyM := map[string]Result[T]{}
 	for k, v := range b.result {
-		copy[k] = v
+		copyM[k] = v
 	}
-	return copy
+	return copyM
 }
 
-func New(ctx context.Context, opts ...Option) (*Batch, context.Context) {
+func New[T any](ctx context.Context, opts ...Option[T]) (*Batch[T], context.Context) {
 	ctx, cancel := context.WithCancel(ctx)
 
-	b := &Batch{
+	b := &Batch[T]{
-		result: map[string]Result{},
+		result: map[string]Result[T]{},
 	}
 
 	for _, o := range opts {

common/batch/batch_test.go

@@ -11,14 +11,14 @@ import (
 )
 
 func TestBatch(t *testing.T) {
-	b, _ := New(context.Background())
+	b, _ := New[string](context.Background())
 
 	now := time.Now()
-	b.Go("foo", func() (any, error) {
+	b.Go("foo", func() (string, error) {
 		time.Sleep(time.Millisecond * 100)
 		return "foo", nil
 	})
-	b.Go("bar", func() (any, error) {
+	b.Go("bar", func() (string, error) {
 		time.Sleep(time.Millisecond * 150)
 		return "bar", nil
 	})
@@ -32,20 +32,20 @@ func TestBatch(t *testing.T) {
 
 	for k, v := range result {
 		assert.NoError(t, v.Err)
-		assert.Equal(t, k, v.Value.(string))
+		assert.Equal(t, k, v.Value)
 	}
 }
 
 func TestBatchWithConcurrencyNum(t *testing.T) {
-	b, _ := New(
+	b, _ := New[string](
 		context.Background(),
-		WithConcurrencyNum(3),
+		WithConcurrencyNum[string](3),
 	)
 
 	now := time.Now()
 	for i := 0; i < 7; i++ {
 		idx := i
-		b.Go(strconv.Itoa(idx), func() (any, error) {
+		b.Go(strconv.Itoa(idx), func() (string, error) {
 			time.Sleep(time.Millisecond * 100)
 			return strconv.Itoa(idx), nil
 		})
@@ -57,21 +57,21 @@ func TestBatchWithConcurrencyNum(t *testing.T) {
 
 	for k, v := range result {
 		assert.NoError(t, v.Err)
-		assert.Equal(t, k, v.Value.(string))
+		assert.Equal(t, k, v.Value)
 	}
 }
 
 func TestBatchContext(t *testing.T) {
-	b, ctx := New(context.Background())
+	b, ctx := New[string](context.Background())
 
-	b.Go("error", func() (any, error) {
+	b.Go("error", func() (string, error) {
 		time.Sleep(time.Millisecond * 100)
-		return nil, errors.New("test error")
+		return "", errors.New("test error")
 	})
 
-	b.Go("ctx", func() (any, error) {
+	b.Go("ctx", func() (string, error) {
 		<-ctx.Done()
-		return nil, ctx.Err()
+		return "", ctx.Err()
 	})
 
 	result, err := b.WaitAndGetResult()

common/buf/sing.go

@@ -0,0 +1,20 @@
+package buf
+
+import (
+	"github.com/sagernet/sing/common"
+	"github.com/sagernet/sing/common/buf"
+)
+
+type Buffer = buf.Buffer
+
+var StackNew = buf.StackNew
+var StackNewSize = buf.StackNewSize
+var KeepAlive = common.KeepAlive
+
+//go:norace
+func Dup[T any](obj T) T {
+	return common.Dup(obj)
+}
+
+var Must = common.Must
+var Error = common.Error

common/cache/cache.go

@@ -1,106 +0,0 @@
-package cache
-
-import (
-	"runtime"
-	"sync"
-	"time"
-)
-
-// Cache store element with a expired time
-type Cache[K comparable, V any] struct {
-	*cache[K, V]
-}
-
-type cache[K comparable, V any] struct {
-	mapping sync.Map
-	janitor *janitor[K, V]
-}
-
-type element[V any] struct {
-	Expired time.Time
-	Payload V
-}
-
-// Put element in Cache with its ttl
-func (c *cache[K, V]) Put(key K, payload V, ttl time.Duration) {
-	c.mapping.Store(key, &element[V]{
-		Payload: payload,
-		Expired: time.Now().Add(ttl),
-	})
-}
-
-// Get element in Cache, and drop when it expired
-func (c *cache[K, V]) Get(key K) V {
-	item, exist := c.mapping.Load(key)
-	if !exist {
-		return getZero[V]()
-	}
-	elm := item.(*element[V])
-	// expired
-	if time.Since(elm.Expired) > 0 {
-		c.mapping.Delete(key)
-		return getZero[V]()
-	}
-	return elm.Payload
-}
-
-// GetWithExpire element in Cache with Expire Time
-func (c *cache[K, V]) GetWithExpire(key K) (payload V, expired time.Time) {
-	item, exist := c.mapping.Load(key)
-	if !exist {
-		return
-	}
-	elm := item.(*element[V])
-	// expired
-	if time.Since(elm.Expired) > 0 {
-		c.mapping.Delete(key)
-		return
-	}
-	return elm.Payload, elm.Expired
-}
-
-func (c *cache[K, V]) cleanup() {
-	c.mapping.Range(func(k, v any) bool {
-		key := k.(string)
-		elm := v.(*element[V])
-		if time.Since(elm.Expired) > 0 {
-			c.mapping.Delete(key)
-		}
-		return true
-	})
-}
-
-type janitor[K comparable, V any] struct {
-	interval time.Duration
-	stop     chan struct{}
-}
-
-func (j *janitor[K, V]) process(c *cache[K, V]) {
-	ticker := time.NewTicker(j.interval)
-	for {
-		select {
-		case <-ticker.C:
-			c.cleanup()
-		case <-j.stop:
-			ticker.Stop()
-			return
-		}
-	}
-}
-
-func stopJanitor[K comparable, V any](c *Cache[K, V]) {
-	c.janitor.stop <- struct{}{}
-}
-
-// New return *Cache
-func New[K comparable, V any](interval time.Duration) *Cache[K, V] {
-	j := &janitor[K, V]{
-		interval: interval,
-		stop:     make(chan struct{}),
-	}
-	c := &cache[K, V]{janitor: j}
-	go j.process(c)
-	C := &Cache[K, V]{c}
-	runtime.SetFinalizer(C, stopJanitor[K, V])
-	return C
-}

common/cache/cache_test.go

@@ -1,72 +0,0 @@
-package cache
-
-import (
-	"runtime"
-	"testing"
-	"time"
-
-	"github.com/stretchr/testify/assert"
-)
-
-func TestCache_Basic(t *testing.T) {
-	interval := 200 * time.Millisecond
-	ttl := 20 * time.Millisecond
-	c := New[string, int](interval)
-	c.Put("int", 1, ttl)
-
-	d := New[string, string](interval)
-	d.Put("string", "a", ttl)
-
-	i := c.Get("int")
-	assert.Equal(t, i, 1, "should recv 1")
-
-	s := d.Get("string")
-	assert.Equal(t, s, "a", "should recv 'a'")
-}
-
-func TestCache_TTL(t *testing.T) {
-	interval := 200 * time.Millisecond
-	ttl := 20 * time.Millisecond
-	now := time.Now()
-	c := New[string, int](interval)
-	c.Put("int", 1, ttl)
-	c.Put("int2", 2, ttl)
-
-	i := c.Get("int")
-	_, expired := c.GetWithExpire("int2")
-	assert.Equal(t, i, 1, "should recv 1")
-	assert.True(t, now.Before(expired))
-
-	time.Sleep(ttl * 2)
-	i = c.Get("int")
-	j, _ := c.GetWithExpire("int2")
-	assert.True(t, i == 0, "should recv 0")
-	assert.True(t, j == 0, "should recv 0")
-}
-
-func TestCache_AutoCleanup(t *testing.T) {
-	interval := 10 * time.Millisecond
-	ttl := 15 * time.Millisecond
-	c := New[string, int](interval)
-	c.Put("int", 1, ttl)
-
-	time.Sleep(ttl * 2)
-	i := c.Get("int")
-	j, _ := c.GetWithExpire("int")
-	assert.True(t, i == 0, "should recv 0")
-	assert.True(t, j == 0, "should recv 0")
-}
-
-func TestCache_AutoGC(t *testing.T) {
-	sign := make(chan struct{})
-	go func() {
-		interval := 10 * time.Millisecond
-		ttl := 15 * time.Millisecond
-		c := New[string, int](interval)
-		c.Put("int", 1, ttl)
-		sign <- struct{}{}
-	}()
-
-	<-sign
-	runtime.GC()
-}

common/cache/lrucache.go

@@ -3,19 +3,20 @@ package cache
 // Modified by https://github.com/die-net/lrucache
 
 import (
-	"container/list"
 	"sync"
 	"time"
+
+	"github.com/Dreamacro/clash/common/generics/list"
 )
 
 // Option is part of Functional Options Pattern
 type Option[K comparable, V any] func(*LruCache[K, V])
 
 // EvictCallback is used to get a callback when a cache entry is evicted
-type EvictCallback = func(key any, value any)
+type EvictCallback[K comparable, V any] func(key K, value V)
 
 // WithEvict set the evict callback
-func WithEvict[K comparable, V any](cb EvictCallback) Option[K, V] {
+func WithEvict[K comparable, V any](cb EvictCallback[K, V]) Option[K, V] {
 	return func(l *LruCache[K, V]) {
 		l.onEvict = cb
 	}
@@ -57,18 +58,18 @@ type LruCache[K comparable, V any] struct {
 	maxAge         int64
 	maxSize        int
 	mu             sync.Mutex
-	cache          map[any]*list.Element
+	cache          map[K]*list.Element[*entry[K, V]]
-	lru            *list.List // Front is least-recent
+	lru            *list.List[*entry[K, V]] // Front is least-recent
 	updateAgeOnGet bool
 	staleReturn    bool
-	onEvict        EvictCallback
+	onEvict        EvictCallback[K, V]
 }
 
-// NewLRUCache creates an LruCache
+// New creates an LruCache
-func NewLRUCache[K comparable, V any](options ...Option[K, V]) *LruCache[K, V] {
+func New[K comparable, V any](options ...Option[K, V]) *LruCache[K, V] {
 	lc := &LruCache[K, V]{
-		lru:   list.New(),
+		lru:   list.New[*entry[K, V]](),
-		cache: make(map[any]*list.Element),
+		cache: make(map[K]*list.Element[*entry[K, V]]),
 	}
 
 	for _, option := range options {
@@ -129,7 +130,7 @@ func (c *LruCache[K, V]) SetWithExpire(key K, value V, expires time.Time) {
 
 	if le, ok := c.cache[key]; ok {
 		c.lru.MoveToBack(le)
-		e := le.Value.(*entry[K, V])
+		e := le.Value
 		e.value = value
 		e.expires = expires.Unix()
 	} else {
@@ -154,11 +155,11 @@ func (c *LruCache[K, V]) CloneTo(n *LruCache[K, V]) {
 	n.mu.Lock()
 	defer n.mu.Unlock()
 
-	n.lru = list.New()
+	n.lru = list.New[*entry[K, V]]()
-	n.cache = make(map[any]*list.Element)
+	n.cache = make(map[K]*list.Element[*entry[K, V]])
 
 	for e := c.lru.Front(); e != nil; e = e.Next() {
-		elm := e.Value.(*entry[K, V])
+		elm := e.Value
 		n.cache[elm.key] = n.lru.PushBack(elm)
 	}
 }
@@ -172,7 +173,7 @@ func (c *LruCache[K, V]) get(key K) *entry[K, V] {
 		return nil
 	}
 
-	if !c.staleReturn && c.maxAge > 0 && le.Value.(*entry[K, V]).expires <= time.Now().Unix() {
+	if !c.staleReturn && c.maxAge > 0 && le.Value.expires <= time.Now().Unix() {
 		c.deleteElement(le)
 		c.maybeDeleteOldest()
 
@@ -180,7 +181,7 @@ func (c *LruCache[K, V]) get(key K) *entry[K, V] {
 	}
 
 	c.lru.MoveToBack(le)
-	el := le.Value.(*entry[K, V])
+	el := le.Value
 	if c.maxAge > 0 && c.updateAgeOnGet {
 		el.expires = time.Now().Unix() + c.maxAge
 	}
@@ -201,15 +202,15 @@ func (c *LruCache[K, V]) Delete(key K) {
 func (c *LruCache[K, V]) maybeDeleteOldest() {
 	if !c.staleReturn && c.maxAge > 0 {
 		now := time.Now().Unix()
-		for le := c.lru.Front(); le != nil && le.Value.(*entry[K, V]).expires <= now; le = c.lru.Front() {
+		for le := c.lru.Front(); le != nil && le.Value.expires <= now; le = c.lru.Front() {
 			c.deleteElement(le)
 		}
 	}
 }
 
-func (c *LruCache[K, V]) deleteElement(le *list.Element) {
+func (c *LruCache[K, V]) deleteElement(le *list.Element[*entry[K, V]]) {
 	c.lru.Remove(le)
-	e := le.Value.(*entry[K, V])
+	e := le.Value
 	delete(c.cache, e.key)
 	if c.onEvict != nil {
 		c.onEvict(e.key, e.value)
@@ -219,7 +220,7 @@ func (c *LruCache[K, V]) deleteElement(le *list.Element) {
 func (c *LruCache[K, V]) Clear() error {
 	c.mu.Lock()
 
-	c.cache = make(map[any]*list.Element)
+	c.cache = make(map[K]*list.Element[*entry[K, V]])
 
 	c.mu.Unlock()
 	return nil

common/cache/lrucache_test.go

@@ -19,7 +19,7 @@ var entries = []struct {
 }
 
 func TestLRUCache(t *testing.T) {
-	c := NewLRUCache[string, string]()
+	c := New[string, string]()
 
 	for _, e := range entries {
 		c.Set(e.key, e.value)
@@ -45,25 +45,25 @@ func TestLRUCache(t *testing.T) {
 }
 
 func TestLRUMaxAge(t *testing.T) {
-	c := NewLRUCache[string, string](WithAge[string, string](86400))
+	c := New[string, string](WithAge[string, string](86400))
 
 	now := time.Now().Unix()
 	expected := now + 86400
 
 	// Add one expired entry
 	c.Set("foo", "bar")
-	c.lru.Back().Value.(*entry[string, string]).expires = now
+	c.lru.Back().Value.expires = now
 
 	// Reset
 	c.Set("foo", "bar")
-	e := c.lru.Back().Value.(*entry[string, string])
+	e := c.lru.Back().Value
 	assert.True(t, e.expires >= now)
-	c.lru.Back().Value.(*entry[string, string]).expires = now
+	c.lru.Back().Value.expires = now
 
 	// Set a few and verify expiration times
 	for _, s := range entries {
 		c.Set(s.key, s.value)
-		e := c.lru.Back().Value.(*entry[string, string])
+		e := c.lru.Back().Value
 		assert.True(t, e.expires >= expected && e.expires <= expected+10)
 	}
 
@@ -77,7 +77,7 @@ func TestLRUMaxAge(t *testing.T) {
 	for _, s := range entries {
 		le, ok := c.cache[s.key]
 		if assert.True(t, ok) {
-			le.Value.(*entry[string, string]).expires = now
+			le.Value.expires = now
 		}
 	}
 
@@ -88,22 +88,22 @@ func TestLRUMaxAge(t *testing.T) {
 }
 
 func TestLRUpdateOnGet(t *testing.T) {
-	c := NewLRUCache[string, string](WithAge[string, string](86400), WithUpdateAgeOnGet[string, string]())
+	c := New[string, string](WithAge[string, string](86400), WithUpdateAgeOnGet[string, string]())
 
 	now := time.Now().Unix()
 	expires := now + 86400/2
 
 	// Add one expired entry
 	c.Set("foo", "bar")
-	c.lru.Back().Value.(*entry[string, string]).expires = expires
+	c.lru.Back().Value.expires = expires
 
 	_, ok := c.Get("foo")
 	assert.True(t, ok)
-	assert.True(t, c.lru.Back().Value.(*entry[string, string]).expires > expires)
+	assert.True(t, c.lru.Back().Value.expires > expires)
 }
 
 func TestMaxSize(t *testing.T) {
-	c := NewLRUCache[string, string](WithSize[string, string](2))
+	c := New[string, string](WithSize[string, string](2))
 	// Add one expired entry
 	c.Set("foo", "bar")
 	_, ok := c.Get("foo")
@@ -117,7 +117,7 @@ func TestMaxSize(t *testing.T) {
 }
 
 func TestExist(t *testing.T) {
-	c := NewLRUCache[int, int](WithSize[int, int](1))
+	c := New[int, int](WithSize[int, int](1))
 	c.Set(1, 2)
 	assert.True(t, c.Exist(1))
 	c.Set(2, 3)
@@ -126,11 +126,11 @@ func TestExist(t *testing.T) {
 
 func TestEvict(t *testing.T) {
 	temp := 0
-	evict := func(key any, value any) {
+	evict := func(key int, value int) {
-		temp = key.(int) + value.(int)
+		temp = key + value
 	}
 
-	c := NewLRUCache[int, int](WithEvict[int, int](evict), WithSize[int, int](1))
+	c := New[int, int](WithEvict[int, int](evict), WithSize[int, int](1))
 	c.Set(1, 2)
 	c.Set(2, 3)
 
@@ -138,7 +138,7 @@ func TestEvict(t *testing.T) {
 }
 
 func TestSetWithExpire(t *testing.T) {
-	c := NewLRUCache[int, *struct{}](WithAge[int, *struct{}](1))
+	c := New[int, *struct{}](WithAge[int, *struct{}](1))
 	now := time.Now().Unix()
 
 	tenSecBefore := time.Unix(now-10, 0)
@@ -153,7 +153,7 @@ func TestSetWithExpire(t *testing.T) {
 }
 
 func TestStale(t *testing.T) {
-	c := NewLRUCache[int, int](WithAge[int, int](1), WithStale[int, int](true))
+	c := New[int, int](WithAge[int, int](1), WithStale[int, int](true))
 	now := time.Now().Unix()
 
 	tenSecBefore := time.Unix(now-10, 0)
@@ -166,11 +166,11 @@ func TestStale(t *testing.T) {
 }
 
 func TestCloneTo(t *testing.T) {
-	o := NewLRUCache[string, int](WithSize[string, int](10))
+	o := New[string, int](WithSize[string, int](10))
 	o.Set("1", 1)
 	o.Set("2", 2)
 
-	n := NewLRUCache[string, int](WithSize[string, int](2))
+	n := New[string, int](WithSize[string, int](2))
 	n.Set("3", 3)
 	n.Set("4", 4)
 

common/callback/callback.go

@@ -0,0 +1,25 @@
+package callback
+
+import (
+	C "github.com/Dreamacro/clash/constant"
+)
+
+type FirstWriteCallBackConn struct {
+	C.Conn
+	Callback func(error)
+	written  bool
+}
+
+func (c *FirstWriteCallBackConn) Write(b []byte) (n int, err error) {
+	defer func() {
+		if !c.written {
+			c.written = true
+			c.Callback(err)
+		}
+	}()
+	return c.Conn.Write(b)
+}
+
+func (c *FirstWriteCallBackConn) Upstream() any {
+	return c.Conn
+}

common/convert/base64.go

@@ -0,0 +1,45 @@
+package convert
+
+import (
+	"encoding/base64"
+	"strings"
+)
+
+var (
+	encRaw = base64.RawStdEncoding
+	enc    = base64.StdEncoding
+)
+
+// DecodeBase64 try to decode content from the given bytes,
+// which can be in base64.RawStdEncoding, base64.StdEncoding or just plaintext.
+func DecodeBase64(buf []byte) []byte {
+	result, err := tryDecodeBase64(buf)
+	if err != nil {
+		return buf
+	}
+	return result
+}
+
+func tryDecodeBase64(buf []byte) ([]byte, error) {
+	dBuf := make([]byte, encRaw.DecodedLen(len(buf)))
+	n, err := encRaw.Decode(dBuf, buf)
+	if err != nil {
+		n, err = enc.Decode(dBuf, buf)
+		if err != nil {
+			return nil, err
+		}
+	}
+	return dBuf[:n], nil
+}
+
+func urlSafe(data string) string {
+	return strings.NewReplacer("+", "-", "/", "_").Replace(data)
+}
+
+func decodeUrlSafe(data string) string {
+	dcBuf, err := base64.RawURLEncoding.DecodeString(data)
+	if err != nil {
+		return ""
+	}
+	return string(dcBuf)
+}

common/convert/converter.go

@@ -0,0 +1,408 @@
+package convert
+
+import (
+	"bytes"
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"github.com/Dreamacro/clash/log"
+	"net/url"
+	"strconv"
+	"strings"
+)
+
+// ConvertsV2Ray convert V2Ray subscribe proxies data to clash proxies config
+func ConvertsV2Ray(buf []byte) ([]map[string]any, error) {
+	data := DecodeBase64(buf)
+
+	arr := strings.Split(string(data), "\n")
+
+	proxies := make([]map[string]any, 0, len(arr))
+	names := make(map[string]int, 200)
+
+	for _, line := range arr {
+		line = strings.TrimRight(line, " \r")
+		if line == "" {
+			continue
+		}
+
+		scheme, body, found := strings.Cut(line, "://")
+		if !found {
+			continue
+		}
+
+		scheme = strings.ToLower(scheme)
+		switch scheme {
+		case "hysteria":
+			urlHysteria, err := url.Parse(line)
+			if err != nil {
+				continue
+			}
+
+			query := urlHysteria.Query()
+			name := uniqueName(names, urlHysteria.Fragment)
+			hysteria := make(map[string]any, 20)
+
+			hysteria["name"] = name
+			hysteria["type"] = scheme
+			hysteria["server"] = urlHysteria.Hostname()
+			hysteria["port"] = urlHysteria.Port()
+			hysteria["sni"] = query.Get("peer")
+			hysteria["obfs"] = query.Get("obfs")
+			hysteria["alpn"] = []string{query.Get("alpn")}
+			hysteria["auth_str"] = query.Get("auth")
+			hysteria["protocol"] = query.Get("protocol")
+			up := query.Get("up")
+			down := query.Get("down")
+			if up == "" {
+				up = query.Get("upmbps")
+			}
+			if down == "" {
+				down = query.Get("downmbps")
+			}
+			hysteria["down"] = down
+			hysteria["up"] = up
+			hysteria["skip-cert-verify"], _ = strconv.ParseBool(query.Get("insecure"))
+
+			proxies = append(proxies, hysteria)
+
+		case "trojan":
+			urlTrojan, err := url.Parse(line)
+			if err != nil {
+				continue
+			}
+
+			query := urlTrojan.Query()
+
+			name := uniqueName(names, urlTrojan.Fragment)
+			trojan := make(map[string]any, 20)
+
+			trojan["name"] = name
+			trojan["type"] = scheme
+			trojan["server"] = urlTrojan.Hostname()
+			trojan["port"] = urlTrojan.Port()
+			trojan["password"] = urlTrojan.User.Username()
+			trojan["udp"] = true
+			trojan["skip-cert-verify"] = false
+
+			sni := query.Get("sni")
+			if sni != "" {
+				trojan["sni"] = sni
+			}
+
+			network := strings.ToLower(query.Get("type"))
+			if network != "" {
+				trojan["network"] = network
+			}
+
+			switch network {
+			case "ws":
+				headers := make(map[string]any)
+				wsOpts := make(map[string]any)
+
+				headers["User-Agent"] = RandUserAgent()
+
+				wsOpts["path"] = query.Get("path")
+				wsOpts["headers"] = headers
+
+				trojan["ws-opts"] = wsOpts
+
+			case "grpc":
+				grpcOpts := make(map[string]any)
+				grpcOpts["grpc-service-name"] = query.Get("serviceName")
+				trojan["grpc-opts"] = grpcOpts
+			}
+
+			if fingerprint := query.Get("fp"); fingerprint == "" {
+				trojan["client-fingerprint"] = "chrome"
+			} else {
+				trojan["client-fingerprint"] = fingerprint
+			}
+
+			proxies = append(proxies, trojan)
+
+		case "vless":
+			urlVLess, err := url.Parse(line)
+			if err != nil {
+				continue
+			}
+			query := urlVLess.Query()
+			vless := make(map[string]any, 20)
+			err = handleVShareLink(names, urlVLess, scheme, vless)
+			if err != nil {
+				log.Warnln("error:%s line:%s", err.Error(), line)
+				continue
+			}
+			if flow := query.Get("flow"); flow != "" {
+				vless["flow"] = strings.ToLower(flow)
+			}
+			proxies = append(proxies, vless)
+
+		case "vmess":
+			// V2RayN-styled share link
+			// https://github.com/2dust/v2rayN/wiki/%E5%88%86%E4%BA%AB%E9%93%BE%E6%8E%A5%E6%A0%BC%E5%BC%8F%E8%AF%B4%E6%98%8E(ver-2)
+			dcBuf, err := tryDecodeBase64([]byte(body))
+			if err != nil {
+				// Xray VMessAEAD share link
+				urlVMess, err := url.Parse(line)
+				if err != nil {
+					continue
+				}
+				query := urlVMess.Query()
+				vmess := make(map[string]any, 20)
+				err = handleVShareLink(names, urlVMess, scheme, vmess)
+				if err != nil {
+					log.Warnln("error:%s line:%s", err.Error(), line)
+					continue
+				}
+				vmess["alterId"] = 0
+				vmess["cipher"] = "auto"
+				if encryption := query.Get("encryption"); encryption != "" {
+					vmess["cipher"] = encryption
+				}
+				proxies = append(proxies, vmess)
+				continue
+			}
+
+			jsonDc := json.NewDecoder(bytes.NewReader(dcBuf))
+			values := make(map[string]any, 20)
+
+			if jsonDc.Decode(&values) != nil {
+				continue
+			}
+			tempName, ok := values["ps"].(string)
+			if !ok {
+				continue
+			}
+			name := uniqueName(names, tempName)
+			vmess := make(map[string]any, 20)
+
+			vmess["name"] = name
+			vmess["type"] = scheme
+			vmess["server"] = values["add"]
+			vmess["port"] = values["port"]
+			vmess["uuid"] = values["id"]
+			if alterId, ok := values["aid"]; ok {
+				vmess["alterId"] = alterId
+			} else {
+				vmess["alterId"] = 0
+			}
+			vmess["udp"] = true
+			vmess["xudp"] = true
+			vmess["tls"] = false
+			vmess["skip-cert-verify"] = false
+
+			vmess["cipher"] = "auto"
+			if cipher, ok := values["scy"]; ok && cipher != "" {
+				vmess["cipher"] = cipher
+			}
+
+			if sni, ok := values["sni"]; ok && sni != "" {
+				vmess["servername"] = sni
+			}
+
+			network := strings.ToLower(values["net"].(string))
+			if values["type"] == "http" {
+				network = "http"
+			} else if network == "http" {
+				network = "h2"
+			}
+			vmess["network"] = network
+
+			tls := strings.ToLower(values["tls"].(string))
+			if strings.HasSuffix(tls, "tls") {
+				vmess["tls"] = true
+			}
+
+			switch network {
+			case "http":
+				headers := make(map[string]any)
+				httpOpts := make(map[string]any)
+				if host, ok := values["host"]; ok && host != "" {
+					headers["Host"] = []string{host.(string)}
+				}
+				httpOpts["path"] = []string{"/"}
+				if path, ok := values["path"]; ok && path != "" {
+					httpOpts["path"] = []string{path.(string)}
+				}
+				httpOpts["headers"] = headers
+
+				vmess["http-opts"] = httpOpts
+
+			case "h2":
+				headers := make(map[string]any)
+				h2Opts := make(map[string]any)
+				if host, ok := values["host"]; ok && host != "" {
+					headers["Host"] = []string{host.(string)}
+				}
+
+				h2Opts["path"] = values["path"]
+				h2Opts["headers"] = headers
+
+				vmess["h2-opts"] = h2Opts
+
+			case "ws":
+				headers := make(map[string]any)
+				wsOpts := make(map[string]any)
+				wsOpts["path"] = []string{"/"}
+				if host, ok := values["host"]; ok && host != "" {
+					headers["Host"] = host.(string)
+				}
+				if path, ok := values["path"]; ok && path != "" {
+					wsOpts["path"] = path.(string)
+				}
+				wsOpts["headers"] = headers
+				vmess["ws-opts"] = wsOpts
+
+			case "grpc":
+				grpcOpts := make(map[string]any)
+				grpcOpts["grpc-service-name"] = values["path"]
+				vmess["grpc-opts"] = grpcOpts
+			}
+
+			proxies = append(proxies, vmess)
+
+		case "ss":
+			urlSS, err := url.Parse(line)
+			if err != nil {
+				continue
+			}
+
+			name := uniqueName(names, urlSS.Fragment)
+			port := urlSS.Port()
+
+			if port == "" {
+				dcBuf, err := encRaw.DecodeString(urlSS.Host)
+				if err != nil {
+					continue
+				}
+
+				urlSS, err = url.Parse("ss://" + string(dcBuf))
+				if err != nil {
+					continue
+				}
+			}
+
+			var (
+				cipherRaw = urlSS.User.Username()
+				cipher    string
+				password  string
+			)
+			cipher = cipherRaw
+			if password, found = urlSS.User.Password(); !found {
+				dcBuf, err := base64.RawURLEncoding.DecodeString(cipherRaw)
+				if err != nil {
+					dcBuf, _ = enc.DecodeString(cipherRaw)
+				}
+				cipher, password, found = strings.Cut(string(dcBuf), ":")
+				if !found {
+					continue
+				}
+				err = VerifyMethod(cipher, password)
+				if err != nil {
+					dcBuf, _ = encRaw.DecodeString(cipherRaw)
+					cipher, password, found = strings.Cut(string(dcBuf), ":")
+				}
+			}
+
+			ss := make(map[string]any, 10)
+
+			ss["name"] = name
+			ss["type"] = scheme
+			ss["server"] = urlSS.Hostname()
+			ss["port"] = urlSS.Port()
+			ss["cipher"] = cipher
+			ss["password"] = password
+			query := urlSS.Query()
+			ss["udp"] = true
+			if query.Get("udp-over-tcp") == "true" || query.Get("uot") == "1" {
+				ss["udp-over-tcp"] = true
+			}
+			if strings.Contains(query.Get("plugin"), "obfs") {
+				obfsParams := strings.Split(query.Get("plugin"), ";")
+				ss["plugin"] = "obfs"
+				ss["plugin-opts"] = map[string]any{
+					"host": obfsParams[2][10:],
+					"mode": obfsParams[1][5:],
+				}
+			}
+			proxies = append(proxies, ss)
+		case "ssr":
+			dcBuf, err := encRaw.DecodeString(body)
+			if err != nil {
+				continue
+			}
+
+			// ssr://host:port:protocol:method:obfs:urlsafebase64pass/?obfsparam=urlsafebase64&protoparam=&remarks=urlsafebase64&group=urlsafebase64&udpport=0&uot=1
+
+			before, after, ok := strings.Cut(string(dcBuf), "/?")
+			if !ok {
+				continue
+			}
+
+			beforeArr := strings.Split(before, ":")
+
+			if len(beforeArr) != 6 {
+				continue
+			}
+
+			host := beforeArr[0]
+			port := beforeArr[1]
+			protocol := beforeArr[2]
+			method := beforeArr[3]
+			obfs := beforeArr[4]
+			password := decodeUrlSafe(urlSafe(beforeArr[5]))
+
+			query, err := url.ParseQuery(urlSafe(after))
+			if err != nil {
+				continue
+			}
+
+			remarks := decodeUrlSafe(query.Get("remarks"))
+			name := uniqueName(names, remarks)
+
+			obfsParam := decodeUrlSafe(query.Get("obfsparam"))
+			protocolParam := query.Get("protoparam")
+
+			ssr := make(map[string]any, 20)
+
+			ssr["name"] = name
+			ssr["type"] = scheme
+			ssr["server"] = host
+			ssr["port"] = port
+			ssr["cipher"] = method
+			ssr["password"] = password
+			ssr["obfs"] = obfs
+			ssr["protocol"] = protocol
+			ssr["udp"] = true
+
+			if obfsParam != "" {
+				ssr["obfs-param"] = obfsParam
+			}
+
+			if protocolParam != "" {
+				ssr["protocol-param"] = protocolParam
+			}
+
+			proxies = append(proxies, ssr)
+		}
+	}
+
+	if len(proxies) == 0 {
+		return nil, fmt.Errorf("convert v2ray subscribe error: format invalid")
+	}
+
+	return proxies, nil
+}
+
+func uniqueName(names map[string]int, name string) string {
+	if index, ok := names[name]; ok {
+		index++
+		names[name] = index
+		name = fmt.Sprintf("%s-%02d", name, index)
+	} else {
+		index = 0
+		names[name] = index
+	}
+	return name
+}

common/convert/util.go

@@ -0,0 +1,322 @@
+package convert
+
+import (
+	"encoding/base64"
+	"github.com/metacubex/sing-shadowsocks/shadowimpl"
+	"math/rand"
+	"net/http"
+	"strings"
+
+	"github.com/gofrs/uuid"
+)
+
+var hostsSuffix = []string{
+	"-cdn.aliyuncs.com",
+	".alicdn.com",
+	".pan.baidu.com",
+	".tbcache.com",
+	".aliyuncdn.com",
+	".vod.miguvideo.com",
+	".cibntv.net",
+	".myqcloud.com",
+	".smtcdns.com",
+	".alikunlun.com",
+	".smtcdns.net",
+	".apcdns.net",
+	".cdn-go.cn",
+	".cdntip.com",
+	".cdntips.com",
+	".alidayu.com",
+	".alidns.com",
+	".cdngslb.com",
+	".mxhichina.com",
+	".alibabadns.com",
+}
+
+var userAgents = []string{
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.162 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36",
+	"Mozilla/5.0 (Linux; Android 7.0; Moto C Build/NRD90M.059) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Mobile Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36",
+	"Mozilla/5.0 (Linux; Android 6.0.1; SM-G532M Build/MMB29T; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/55.0.2883.91 Mobile Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.101 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.2; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.2214.111 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.94 Safari/537.36",
+	"Mozilla/5.0 (Linux; Android 5.1.1; SM-J120M Build/LMY47X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Mobile Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36",
+	"Mozilla/5.0 (Linux; Android 7.0; Moto G (5) Build/NPPS25.137-93-14) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Mobile Safari/537.36",
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+	"Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.67 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.94 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.110 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.67 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.67 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.67 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.65 Safari/537.36",
+	"Mozilla/5.0 (Linux; Android 7.1; Mi A1 Build/N2G47H) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.83 Mobile Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.117 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36",
+	"Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/533.4 (KHTML, like Gecko) Chrome/5.0.375.99 Safari/533.4",
+	"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/36.0.1985.125 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.89 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.111 Safari/537.36 MVisionPlayer/1.0.0.0",
+	"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36",
+	"Mozilla/5.0 (Linux; Android 5.1; A37f Build/LMY47V) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.93 Mobile Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.2; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.86 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.110 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.76 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 5.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36",
+	"Mozilla/5.0 (Linux; Android 6.0.1; CPH1607 Build/MMB29M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/63.0.3239.111 Mobile Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36",
+	"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36",
+	"Mozilla/5.0 (Linux; Android 6.0.1; vivo 1603 Build/MMB29M) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.83 Mobile Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36",
+	"Mozilla/5.0 (Linux; Android 6.0.1; SM-G532M Build/MMB29T) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Mobile Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36",
+	"Mozilla/5.0 (Linux; Android 6.0.1; Redmi 4A Build/MMB29M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/60.0.3112.116 Mobile Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.112 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36",
+	"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.71 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 5.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.2; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.90 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.64 Safari/537.31",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/36.0.1985.143 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.112 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.67 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.181 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.106 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36",
+	"Mozilla/5.0 (Linux; Android 6.0.1; SM-G532G Build/MMB29T) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.83 Mobile Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.109 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.117 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.139 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.67 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1847.131 Safari/537.36",
+	"Mozilla/5.0 (Linux; Android 6.0; vivo 1713 Build/MRA58K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.124 Mobile Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.89 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.101 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.67 Safari/537.36",
+	"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36",
+}
+
+var (
+	hostsLen = len(hostsSuffix)
+	uaLen    = len(userAgents)
+)
+
+func RandHost() string {
+	id, _ := uuid.NewV4()
+	base := strings.ToLower(base64.RawURLEncoding.EncodeToString(id.Bytes()))
+	base = strings.ReplaceAll(base, "-", "")
+	base = strings.ReplaceAll(base, "_", "")
+	buf := []byte(base)
+	prefix := string(buf[:3]) + "---"
+	prefix += string(buf[6:8]) + "-"
+	prefix += string(buf[len(buf)-8:])
+
+	return prefix + hostsSuffix[rand.Intn(hostsLen)]
+}
+
+func RandUserAgent() string {
+	return userAgents[rand.Intn(uaLen)]
+}
+
+func SetUserAgent(header http.Header) {
+	if header.Get("User-Agent") != "" {
+		return
+	}
+	userAgent := RandUserAgent()
+	header.Set("User-Agent", userAgent)
+}
+
+func VerifyMethod(cipher, password string) (err error) {
+	_, err = shadowimpl.FetchMethod(cipher, password)
+	return
+}

common/convert/v.go

@@ -0,0 +1,123 @@
+package convert
+
+import (
+	"errors"
+	"fmt"
+	"net/url"
+	"strconv"
+	"strings"
+)
+
+func handleVShareLink(names map[string]int, url *url.URL, scheme string, proxy map[string]any) error {
+	// Xray VMessAEAD / VLESS share link standard
+	// https://github.com/XTLS/Xray-core/discussions/716
+	query := url.Query()
+	proxy["name"] = uniqueName(names, url.Fragment)
+	if url.Hostname() == "" {
+		return errors.New("url.Hostname() is empty")
+	}
+	if url.Port() == "" {
+		return errors.New("url.Port() is empty")
+	}
+	proxy["type"] = scheme
+	proxy["server"] = url.Hostname()
+	proxy["port"] = url.Port()
+	proxy["uuid"] = url.User.Username()
+	proxy["udp"] = true
+	proxy["skip-cert-verify"] = false
+	proxy["tls"] = false
+	tls := strings.ToLower(query.Get("security"))
+	if strings.HasSuffix(tls, "tls") {
+		proxy["tls"] = true
+		if fingerprint := query.Get("fp"); fingerprint == "" {
+			proxy["client-fingerprint"] = "chrome"
+		} else {
+			proxy["client-fingerprint"] = fingerprint
+		}
+	}
+	if sni := query.Get("sni"); sni != "" {
+		proxy["servername"] = sni
+	}
+
+	switch query.Get("packetEncoding") {
+	case "none":
+	case "packet":
+		proxy["packet-addr"] = true
+	default:
+		proxy["xudp"] = true
+	}
+
+	network := strings.ToLower(query.Get("type"))
+	if network == "" {
+		network = "tcp"
+	}
+	fakeType := strings.ToLower(query.Get("headerType"))
+	if fakeType == "http" {
+		network = "http"
+	} else if network == "http" {
+		network = "h2"
+	}
+	proxy["network"] = network
+	switch network {
+	case "tcp":
+		if fakeType != "none" {
+			headers := make(map[string]any)
+			httpOpts := make(map[string]any)
+			httpOpts["path"] = []string{"/"}
+
+			if host := query.Get("host"); host != "" {
+				headers["Host"] = []string{host}
+			}
+
+			if method := query.Get("method"); method != "" {
+				httpOpts["method"] = method
+			}
+
+			if path := query.Get("path"); path != "" {
+				httpOpts["path"] = []string{path}
+			}
+			httpOpts["headers"] = headers
+			proxy["http-opts"] = httpOpts
+		}
+
+	case "http":
+		headers := make(map[string]any)
+		h2Opts := make(map[string]any)
+		h2Opts["path"] = []string{"/"}
+		if path := query.Get("path"); path != "" {
+			h2Opts["path"] = []string{path}
+		}
+		if host := query.Get("host"); host != "" {
+			h2Opts["host"] = []string{host}
+		}
+		h2Opts["headers"] = headers
+		proxy["h2-opts"] = h2Opts
+
+	case "ws":
+		headers := make(map[string]any)
+		wsOpts := make(map[string]any)
+		headers["User-Agent"] = RandUserAgent()
+		headers["Host"] = query.Get("host")
+		wsOpts["path"] = query.Get("path")
+		wsOpts["headers"] = headers
+
+		if earlyData := query.Get("ed"); earlyData != "" {
+			med, err := strconv.Atoi(earlyData)
+			if err != nil {
+				return fmt.Errorf("bad WebSocket max early data size: %v", err)
+			}
+			wsOpts["max-early-data"] = med
+		}
+		if earlyDataHeader := query.Get("eh"); earlyDataHeader != "" {
+			wsOpts["early-data-header-name"] = earlyDataHeader
+		}
+
+		proxy["ws-opts"] = wsOpts
+
+	case "grpc":
+		grpcOpts := make(map[string]any)
+		grpcOpts["grpc-service-name"] = query.Get("serviceName")
+		proxy["grpc-opts"] = grpcOpts
+	}
+	return nil
+}

common/generics/list/list.go

@@ -0,0 +1,235 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package list implements a doubly linked list.
+//
+// To iterate over a list (where l is a *List):
+//
+//	for e := l.Front(); e != nil; e = e.Next() {
+//		// do something with e.Value
+//	}
+package list
+
+// Element is an element of a linked list.
+type Element[T any] struct {
+	// Next and previous pointers in the doubly-linked list of elements.
+	// To simplify the implementation, internally a list l is implemented
+	// as a ring, such that &l.root is both the next element of the last
+	// list element (l.Back()) and the previous element of the first list
+	// element (l.Front()).
+	next, prev *Element[T]
+
+	// The list to which this element belongs.
+	list *List[T]
+
+	// The value stored with this element.
+	Value T
+}
+
+// Next returns the next list element or nil.
+func (e *Element[T]) Next() *Element[T] {
+	if p := e.next; e.list != nil && p != &e.list.root {
+		return p
+	}
+	return nil
+}
+
+// Prev returns the previous list element or nil.
+func (e *Element[T]) Prev() *Element[T] {
+	if p := e.prev; e.list != nil && p != &e.list.root {
+		return p
+	}
+	return nil
+}
+
+// List represents a doubly linked list.
+// The zero value for List is an empty list ready to use.
+type List[T any] struct {
+	root Element[T] // sentinel list element, only &root, root.prev, and root.next are used
+	len  int        // current list length excluding (this) sentinel element
+}
+
+// Init initializes or clears list l.
+func (l *List[T]) Init() *List[T] {
+	l.root.next = &l.root
+	l.root.prev = &l.root
+	l.len = 0
+	return l
+}
+
+// New returns an initialized list.
+func New[T any]() *List[T] { return new(List[T]).Init() }
+
+// Len returns the number of elements of list l.
+// The complexity is O(1).
+func (l *List[T]) Len() int { return l.len }
+
+// Front returns the first element of list l or nil if the list is empty.
+func (l *List[T]) Front() *Element[T] {
+	if l.len == 0 {
+		return nil
+	}
+	return l.root.next
+}
+
+// Back returns the last element of list l or nil if the list is empty.
+func (l *List[T]) Back() *Element[T] {
+	if l.len == 0 {
+		return nil
+	}
+	return l.root.prev
+}
+
+// lazyInit lazily initializes a zero List value.
+func (l *List[T]) lazyInit() {
+	if l.root.next == nil {
+		l.Init()
+	}
+}
+
+// insert inserts e after at, increments l.len, and returns e.
+func (l *List[T]) insert(e, at *Element[T]) *Element[T] {
+	e.prev = at
+	e.next = at.next
+	e.prev.next = e
+	e.next.prev = e
+	e.list = l
+	l.len++
+	return e
+}
+
+// insertValue is a convenience wrapper for insert(&Element{Value: v}, at).
+func (l *List[T]) insertValue(v T, at *Element[T]) *Element[T] {
+	return l.insert(&Element[T]{Value: v}, at)
+}
+
+// remove removes e from its list, decrements l.len
+func (l *List[T]) remove(e *Element[T]) {
+	e.prev.next = e.next
+	e.next.prev = e.prev
+	e.next = nil // avoid memory leaks
+	e.prev = nil // avoid memory leaks
+	e.list = nil
+	l.len--
+}
+
+// move moves e to next to at.
+func (l *List[T]) move(e, at *Element[T]) {
+	if e == at {
+		return
+	}
+	e.prev.next = e.next
+	e.next.prev = e.prev
+
+	e.prev = at
+	e.next = at.next
+	e.prev.next = e
+	e.next.prev = e
+}
+
+// Remove removes e from l if e is an element of list l.
+// It returns the element value e.Value.
+// The element must not be nil.
+func (l *List[T]) Remove(e *Element[T]) T {
+	if e.list == l {
+		// if e.list == l, l must have been initialized when e was inserted
+		// in l or l == nil (e is a zero Element) and l.remove will crash
+		l.remove(e)
+	}
+	return e.Value
+}
+
+// PushFront inserts a new element e with value v at the front of list l and returns e.
+func (l *List[T]) PushFront(v T) *Element[T] {
+	l.lazyInit()
+	return l.insertValue(v, &l.root)
+}
+
+// PushBack inserts a new element e with value v at the back of list l and returns e.
+func (l *List[T]) PushBack(v T) *Element[T] {
+	l.lazyInit()
+	return l.insertValue(v, l.root.prev)
+}
+
+// InsertBefore inserts a new element e with value v immediately before mark and returns e.
+// If mark is not an element of l, the list is not modified.
+// The mark must not be nil.
+func (l *List[T]) InsertBefore(v T, mark *Element[T]) *Element[T] {
+	if mark.list != l {
+		return nil
+	}
+	// see comment in List.Remove about initialization of l
+	return l.insertValue(v, mark.prev)
+}
+
+// InsertAfter inserts a new element e with value v immediately after mark and returns e.
+// If mark is not an element of l, the list is not modified.
+// The mark must not be nil.
+func (l *List[T]) InsertAfter(v T, mark *Element[T]) *Element[T] {
+	if mark.list != l {
+		return nil
+	}
+	// see comment in List.Remove about initialization of l
+	return l.insertValue(v, mark)
+}
+
+// MoveToFront moves element e to the front of list l.
+// If e is not an element of l, the list is not modified.
+// The element must not be nil.
+func (l *List[T]) MoveToFront(e *Element[T]) {
+	if e.list != l || l.root.next == e {
+		return
+	}
+	// see comment in List.Remove about initialization of l
+	l.move(e, &l.root)
+}
+
+// MoveToBack moves element e to the back of list l.
+// If e is not an element of l, the list is not modified.
+// The element must not be nil.
+func (l *List[T]) MoveToBack(e *Element[T]) {
+	if e.list != l || l.root.prev == e {
+		return
+	}
+	// see comment in List.Remove about initialization of l
+	l.move(e, l.root.prev)
+}
+
+// MoveBefore moves element e to its new position before mark.
+// If e or mark is not an element of l, or e == mark, the list is not modified.
+// The element and mark must not be nil.
+func (l *List[T]) MoveBefore(e, mark *Element[T]) {
+	if e.list != l || e == mark || mark.list != l {
+		return
+	}
+	l.move(e, mark.prev)
+}
+
+// MoveAfter moves element e to its new position after mark.
+// If e or mark is not an element of l, or e == mark, the list is not modified.
+// The element and mark must not be nil.
+func (l *List[T]) MoveAfter(e, mark *Element[T]) {
+	if e.list != l || e == mark || mark.list != l {
+		return
+	}
+	l.move(e, mark)
+}
+
+// PushBackList inserts a copy of another list at the back of list l.
+// The lists l and other may be the same. They must not be nil.
+func (l *List[T]) PushBackList(other *List[T]) {
+	l.lazyInit()
+	for i, e := other.Len(), other.Front(); i > 0; i, e = i-1, e.Next() {
+		l.insertValue(e.Value, l.root.prev)
+	}
+}
+
+// PushFrontList inserts a copy of another list at the front of list l.
+// The lists l and other may be the same. They must not be nil.
+func (l *List[T]) PushFrontList(other *List[T]) {
+	l.lazyInit()
+	for i, e := other.Len(), other.Back(); i > 0; i, e = i-1, e.Prev() {
+		l.insertValue(e.Value, &l.root)
+	}
+}

common/net/bind.go

@@ -0,0 +1,36 @@
+package net
+
+import "net"
+
+type bindPacketConn struct {
+	net.PacketConn
+	rAddr net.Addr
+}
+
+func (wpc *bindPacketConn) Read(b []byte) (n int, err error) {
+	n, _, err = wpc.PacketConn.ReadFrom(b)
+	return n, err
+}
+
+func (wpc *bindPacketConn) Write(b []byte) (n int, err error) {
+	return wpc.PacketConn.WriteTo(b, wpc.rAddr)
+}
+
+func (wpc *bindPacketConn) RemoteAddr() net.Addr {
+	return wpc.rAddr
+}
+
+func (wpc *bindPacketConn) LocalAddr() net.Addr {
+	if wpc.PacketConn.LocalAddr() == nil {
+		return &net.UDPAddr{IP: net.IPv4zero, Port: 0}
+	} else {
+		return wpc.PacketConn.LocalAddr()
+	}
+}
+
+func NewBindPacketConn(pc net.PacketConn, rAddr net.Addr) net.Conn {
+	return &bindPacketConn{
+		PacketConn: pc,
+		rAddr:      rAddr,
+	}
+}

common/net/bufconn.go

@@ -3,18 +3,23 @@ package net
 import (
 	"bufio"
 	"net"
+
+	"github.com/Dreamacro/clash/common/buf"
 )
 
+var _ ExtendedConn = (*BufferedConn)(nil)
+
 type BufferedConn struct {
 	r *bufio.Reader
-	net.Conn
+	ExtendedConn
+	peeked bool
 }
 
 func NewBufferedConn(c net.Conn) *BufferedConn {
 	if bc, ok := c.(*BufferedConn); ok {
 		return bc
 	}
-	return &BufferedConn{bufio.NewReader(c), c}
+	return &BufferedConn{bufio.NewReader(c), NewExtendedConn(c), false}
 }
 
 // Reader returns the internal bufio.Reader.
@@ -22,11 +27,20 @@ func (c *BufferedConn) Reader() *bufio.Reader {
 	return c.r
 }
 
+func (c *BufferedConn) Peeked() bool {
+	return c.peeked
+}
+
 // Peek returns the next n bytes without advancing the reader.
 func (c *BufferedConn) Peek(n int) ([]byte, error) {
+	c.peeked = true
 	return c.r.Peek(n)
 }
 
+func (c *BufferedConn) Discard(n int) (discarded int, err error) {
+	return c.r.Discard(n)
+}
+
 func (c *BufferedConn) Read(p []byte) (int, error) {
 	return c.r.Read(p)
 }
@@ -42,3 +56,22 @@ func (c *BufferedConn) UnreadByte() error {
 func (c *BufferedConn) Buffered() int {
 	return c.r.Buffered()
 }
+
+func (c *BufferedConn) ReadBuffer(buffer *buf.Buffer) (err error) {
+	if c.r.Buffered() > 0 {
+		_, err = buffer.ReadOnceFrom(c.r)
+		return
+	}
+	return c.ExtendedConn.ReadBuffer(buffer)
+}
+
+func (c *BufferedConn) Upstream() any {
+	return c.ExtendedConn
+}
+
+func (c *BufferedConn) ReaderReplaceable() bool {
+	if c.r.Buffered() > 0 {
+		return false
+	}
+	return true
+}

common/net/http.go

@@ -1,5 +0,0 @@
-package net
-
-const (
-	UA = "Clash"
-)

common/net/refconn.go

@@ -0,0 +1,104 @@
+package net
+
+import (
+	"net"
+	"runtime"
+	"time"
+)
+
+type refConn struct {
+	conn net.Conn
+	ref  any
+}
+
+func (c *refConn) Read(b []byte) (n int, err error) {
+	defer runtime.KeepAlive(c.ref)
+	return c.conn.Read(b)
+}
+
+func (c *refConn) Write(b []byte) (n int, err error) {
+	defer runtime.KeepAlive(c.ref)
+	return c.conn.Write(b)
+}
+
+func (c *refConn) Close() error {
+	defer runtime.KeepAlive(c.ref)
+	return c.conn.Close()
+}
+
+func (c *refConn) LocalAddr() net.Addr {
+	defer runtime.KeepAlive(c.ref)
+	return c.conn.LocalAddr()
+}
+
+func (c *refConn) RemoteAddr() net.Addr {
+	defer runtime.KeepAlive(c.ref)
+	return c.conn.RemoteAddr()
+}
+
+func (c *refConn) SetDeadline(t time.Time) error {
+	defer runtime.KeepAlive(c.ref)
+	return c.conn.SetDeadline(t)
+}
+
+func (c *refConn) SetReadDeadline(t time.Time) error {
+	defer runtime.KeepAlive(c.ref)
+	return c.conn.SetReadDeadline(t)
+}
+
+func (c *refConn) SetWriteDeadline(t time.Time) error {
+	defer runtime.KeepAlive(c.ref)
+	return c.conn.SetWriteDeadline(t)
+}
+
+func (c *refConn) Upstream() any {
+	return c.conn
+}
+
+func NewRefConn(conn net.Conn, ref any) net.Conn {
+	return &refConn{conn: conn, ref: ref}
+}
+
+type refPacketConn struct {
+	pc  net.PacketConn
+	ref any
+}
+
+func (pc *refPacketConn) ReadFrom(p []byte) (n int, addr net.Addr, err error) {
+	defer runtime.KeepAlive(pc.ref)
+	return pc.pc.ReadFrom(p)
+}
+
+func (pc *refPacketConn) WriteTo(p []byte, addr net.Addr) (n int, err error) {
+	defer runtime.KeepAlive(pc.ref)
+	return pc.pc.WriteTo(p, addr)
+}
+
+func (pc *refPacketConn) Close() error {
+	defer runtime.KeepAlive(pc.ref)
+	return pc.pc.Close()
+}
+
+func (pc *refPacketConn) LocalAddr() net.Addr {
+	defer runtime.KeepAlive(pc.ref)
+	return pc.pc.LocalAddr()
+}
+
+func (pc *refPacketConn) SetDeadline(t time.Time) error {
+	defer runtime.KeepAlive(pc.ref)
+	return pc.pc.SetDeadline(t)
+}
+
+func (pc *refPacketConn) SetReadDeadline(t time.Time) error {
+	defer runtime.KeepAlive(pc.ref)
+	return pc.pc.SetReadDeadline(t)
+}
+
+func (pc *refPacketConn) SetWriteDeadline(t time.Time) error {
+	defer runtime.KeepAlive(pc.ref)
+	return pc.pc.SetWriteDeadline(t)
+}
+
+func NewRefPacketConn(pc net.PacketConn, ref any) net.PacketConn {
+	return &refPacketConn{pc: pc, ref: ref}
+}

common/net/relay.go

@@ -0,0 +1,24 @@
+package net
+
+//import (
+//	"io"
+//	"net"
+//	"time"
+//)
+//
+//// Relay copies between left and right bidirectionally.
+//func Relay(leftConn, rightConn net.Conn) {
+//	ch := make(chan error)
+//
+//	go func() {
+//		// Wrapping to avoid using *net.TCPConn.(ReadFrom)
+//		// See also https://github.com/Dreamacro/clash/pull/1209
+//		_, err := io.Copy(WriteOnlyWriter{Writer: leftConn}, ReadOnlyReader{Reader: rightConn})
+//		leftConn.SetReadDeadline(time.Now())
+//		ch <- err
+//	}()
+//
+//	_, _ = io.Copy(WriteOnlyWriter{Writer: rightConn}, ReadOnlyReader{Reader: leftConn})
+//	rightConn.SetReadDeadline(time.Now())
+//	<-ch
+//}

common/net/sing.go

@@ -0,0 +1,22 @@
+package net
+
+import (
+	"context"
+	"net"
+
+	"github.com/sagernet/sing/common/bufio"
+	"github.com/sagernet/sing/common/network"
+)
+
+var NewExtendedConn = bufio.NewExtendedConn
+var NewExtendedWriter = bufio.NewExtendedWriter
+var NewExtendedReader = bufio.NewExtendedReader
+
+type ExtendedConn = network.ExtendedConn
+type ExtendedWriter = network.ExtendedWriter
+type ExtendedReader = network.ExtendedReader
+
+// Relay copies between left and right bidirectionally.
+func Relay(leftConn, rightConn net.Conn) {
+	_ = bufio.CopyConn(context.TODO(), leftConn, rightConn)
+}

common/net/tls.go

@@ -0,0 +1,52 @@
+package net
+
+import (
+	"crypto/rand"
+	"crypto/rsa"
+	"crypto/tls"
+	"crypto/x509"
+	"encoding/pem"
+	"fmt"
+	"math/big"
+)
+
+func ParseCert(certificate, privateKey string) (tls.Certificate, error) {
+	if certificate == "" || privateKey == "" {
+		return newRandomTLSKeyPair()
+	}
+	cert, painTextErr := tls.X509KeyPair([]byte(certificate), []byte(privateKey))
+	if painTextErr == nil {
+		return cert, nil
+	}
+
+	cert, loadErr := tls.LoadX509KeyPair(certificate, privateKey)
+	if loadErr != nil {
+		return tls.Certificate{}, fmt.Errorf("parse certificate failed, maybe format error:%s, or path error: %s", painTextErr.Error(), loadErr.Error())
+	}
+	return cert, nil
+}
+
+func newRandomTLSKeyPair() (tls.Certificate, error) {
+	key, err := rsa.GenerateKey(rand.Reader, 2048)
+	if err != nil {
+		return tls.Certificate{}, err
+	}
+	template := x509.Certificate{SerialNumber: big.NewInt(1)}
+	certDER, err := x509.CreateCertificate(
+		rand.Reader,
+		&template,
+		&template,
+		&key.PublicKey,
+		key)
+	if err != nil {
+		return tls.Certificate{}, err
+	}
+	keyPEM := pem.EncodeToMemory(&pem.Block{Type: "RSA PRIVATE KEY", Bytes: x509.MarshalPKCS1PrivateKey(key)})
+	certPEM := pem.EncodeToMemory(&pem.Block{Type: "CERTIFICATE", Bytes: certDER})
+
+	tlsCert, err := tls.X509KeyPair(certPEM, keyPEM)
+	if err != nil {
+		return tls.Certificate{}, err
+	}
+	return tlsCert, nil
+}

common/net/websocket.go

@@ -0,0 +1,131 @@
+package net
+
+import (
+	"encoding/binary"
+	"math/bits"
+)
+
+// kanged from https://github.com/nhooyr/websocket/blob/master/frame.go
+// License: MIT
+
+// MaskWebSocket applies the WebSocket masking algorithm to p
+// with the given key.
+// See https://tools.ietf.org/html/rfc6455#section-5.3
+//
+// The returned value is the correctly rotated key to
+// to continue to mask/unmask the message.
+//
+// It is optimized for LittleEndian and expects the key
+// to be in little endian.
+//
+// See https://github.com/golang/go/issues/31586
+func MaskWebSocket(key uint32, b []byte) uint32 {
+	if len(b) >= 8 {
+		key64 := uint64(key)<<32 | uint64(key)
+
+		// At some point in the future we can clean these unrolled loops up.
+		// See https://github.com/golang/go/issues/31586#issuecomment-487436401
+
+		// Then we xor until b is less than 128 bytes.
+		for len(b) >= 128 {
+			v := binary.LittleEndian.Uint64(b)
+			binary.LittleEndian.PutUint64(b, v^key64)
+			v = binary.LittleEndian.Uint64(b[8:16])
+			binary.LittleEndian.PutUint64(b[8:16], v^key64)
+			v = binary.LittleEndian.Uint64(b[16:24])
+			binary.LittleEndian.PutUint64(b[16:24], v^key64)
+			v = binary.LittleEndian.Uint64(b[24:32])
+			binary.LittleEndian.PutUint64(b[24:32], v^key64)
+			v = binary.LittleEndian.Uint64(b[32:40])
+			binary.LittleEndian.PutUint64(b[32:40], v^key64)
+			v = binary.LittleEndian.Uint64(b[40:48])
+			binary.LittleEndian.PutUint64(b[40:48], v^key64)
+			v = binary.LittleEndian.Uint64(b[48:56])
+			binary.LittleEndian.PutUint64(b[48:56], v^key64)
+			v = binary.LittleEndian.Uint64(b[56:64])
+			binary.LittleEndian.PutUint64(b[56:64], v^key64)
+			v = binary.LittleEndian.Uint64(b[64:72])
+			binary.LittleEndian.PutUint64(b[64:72], v^key64)
+			v = binary.LittleEndian.Uint64(b[72:80])
+			binary.LittleEndian.PutUint64(b[72:80], v^key64)
+			v = binary.LittleEndian.Uint64(b[80:88])
+			binary.LittleEndian.PutUint64(b[80:88], v^key64)
+			v = binary.LittleEndian.Uint64(b[88:96])
+			binary.LittleEndian.PutUint64(b[88:96], v^key64)
+			v = binary.LittleEndian.Uint64(b[96:104])
+			binary.LittleEndian.PutUint64(b[96:104], v^key64)
+			v = binary.LittleEndian.Uint64(b[104:112])
+			binary.LittleEndian.PutUint64(b[104:112], v^key64)
+			v = binary.LittleEndian.Uint64(b[112:120])
+			binary.LittleEndian.PutUint64(b[112:120], v^key64)
+			v = binary.LittleEndian.Uint64(b[120:128])
+			binary.LittleEndian.PutUint64(b[120:128], v^key64)
+			b = b[128:]
+		}
+
+		// Then we xor until b is less than 64 bytes.
+		for len(b) >= 64 {
+			v := binary.LittleEndian.Uint64(b)
+			binary.LittleEndian.PutUint64(b, v^key64)
+			v = binary.LittleEndian.Uint64(b[8:16])
+			binary.LittleEndian.PutUint64(b[8:16], v^key64)
+			v = binary.LittleEndian.Uint64(b[16:24])
+			binary.LittleEndian.PutUint64(b[16:24], v^key64)
+			v = binary.LittleEndian.Uint64(b[24:32])
+			binary.LittleEndian.PutUint64(b[24:32], v^key64)
+			v = binary.LittleEndian.Uint64(b[32:40])
+			binary.LittleEndian.PutUint64(b[32:40], v^key64)
+			v = binary.LittleEndian.Uint64(b[40:48])
+			binary.LittleEndian.PutUint64(b[40:48], v^key64)
+			v = binary.LittleEndian.Uint64(b[48:56])
+			binary.LittleEndian.PutUint64(b[48:56], v^key64)
+			v = binary.LittleEndian.Uint64(b[56:64])
+			binary.LittleEndian.PutUint64(b[56:64], v^key64)
+			b = b[64:]
+		}
+
+		// Then we xor until b is less than 32 bytes.
+		for len(b) >= 32 {
+			v := binary.LittleEndian.Uint64(b)
+			binary.LittleEndian.PutUint64(b, v^key64)
+			v = binary.LittleEndian.Uint64(b[8:16])
+			binary.LittleEndian.PutUint64(b[8:16], v^key64)
+			v = binary.LittleEndian.Uint64(b[16:24])
+			binary.LittleEndian.PutUint64(b[16:24], v^key64)
+			v = binary.LittleEndian.Uint64(b[24:32])
+			binary.LittleEndian.PutUint64(b[24:32], v^key64)
+			b = b[32:]
+		}
+
+		// Then we xor until b is less than 16 bytes.
+		for len(b) >= 16 {
+			v := binary.LittleEndian.Uint64(b)
+			binary.LittleEndian.PutUint64(b, v^key64)
+			v = binary.LittleEndian.Uint64(b[8:16])
+			binary.LittleEndian.PutUint64(b[8:16], v^key64)
+			b = b[16:]
+		}
+
+		// Then we xor until b is less than 8 bytes.
+		for len(b) >= 8 {
+			v := binary.LittleEndian.Uint64(b)
+			binary.LittleEndian.PutUint64(b, v^key64)
+			b = b[8:]
+		}
+	}
+
+	// Then we xor until b is less than 4 bytes.
+	for len(b) >= 4 {
+		v := binary.LittleEndian.Uint32(b)
+		binary.LittleEndian.PutUint32(b, v^key)
+		b = b[4:]
+	}
+
+	// xor remaining bytes.
+	for i := range b {
+		b[i] ^= byte(key)
+		key = bits.RotateLeft32(key, -8)
+	}
+
+	return key
+}

common/nnip/netip.go

@@ -0,0 +1,53 @@
+package nnip
+
+import (
+	"encoding/binary"
+	"net"
+	"net/netip"
+)
+
+// IpToAddr converts the net.IP to netip.Addr.
+// If slice's length is not 4 or 16, IpToAddr returns netip.Addr{}
+func IpToAddr(slice net.IP) netip.Addr {
+	ip := slice
+	if len(ip) != 4 {
+		if ip = slice.To4(); ip == nil {
+			ip = slice
+		}
+	}
+
+	if addr, ok := netip.AddrFromSlice(ip); ok {
+		return addr
+	}
+	return netip.Addr{}
+}
+
+// UnMasked returns p's last IP address.
+// If p is invalid, UnMasked returns netip.Addr{}
+func UnMasked(p netip.Prefix) netip.Addr {
+	if !p.IsValid() {
+		return netip.Addr{}
+	}
+
+	buf := p.Addr().As16()
+
+	hi := binary.BigEndian.Uint64(buf[:8])
+	lo := binary.BigEndian.Uint64(buf[8:])
+
+	bits := p.Bits()
+	if bits <= 32 {
+		bits += 96
+	}
+
+	hi = hi | ^uint64(0)>>bits
+	lo = lo | ^(^uint64(0) << (128 - bits))
+
+	binary.BigEndian.PutUint64(buf[:8], hi)
+	binary.BigEndian.PutUint64(buf[8:], lo)
+
+	addr := netip.AddrFrom16(buf)
+	if p.Addr().Is4() {
+		return addr.Unmap()
+	}
+	return addr
+}

common/observable/iterable.go

@@ -1,3 +1,3 @@
 package observable
 
-type Iterable <-chan any
+type Iterable[T any] <-chan T

common/observable/observable.go

@@ -5,14 +5,14 @@ import (
 	"sync"
 )
 
-type Observable struct {
+type Observable[T any] struct {
-	iterable Iterable
+	iterable Iterable[T]
-	listener map[Subscription]*Subscriber
+	listener map[Subscription[T]]*Subscriber[T]
 	mux      sync.Mutex
 	done     bool
 }
 
-func (o *Observable) process() {
+func (o *Observable[T]) process() {
 	for item := range o.iterable {
 		o.mux.Lock()
 		for _, sub := range o.listener {
@@ -23,7 +23,7 @@ func (o *Observable) process() {
 	o.close()
 }
 
-func (o *Observable) close() {
+func (o *Observable[T]) close() {
 	o.mux.Lock()
 	defer o.mux.Unlock()
 
@@ -33,18 +33,18 @@ func (o *Observable) close() {
 	}
 }
 
-func (o *Observable) Subscribe() (Subscription, error) {
+func (o *Observable[T]) Subscribe() (Subscription[T], error) {
 	o.mux.Lock()
 	defer o.mux.Unlock()
 	if o.done {
-		return nil, errors.New("Observable is closed")
+		return nil, errors.New("observable is closed")
 	}
-	subscriber := newSubscriber()
+	subscriber := newSubscriber[T]()
 	o.listener[subscriber.Out()] = subscriber
 	return subscriber.Out(), nil
 }
 
-func (o *Observable) UnSubscribe(sub Subscription) {
+func (o *Observable[T]) UnSubscribe(sub Subscription[T]) {
 	o.mux.Lock()
 	defer o.mux.Unlock()
 	subscriber, exist := o.listener[sub]
@@ -55,10 +55,10 @@ func (o *Observable) UnSubscribe(sub Subscription) {
 	subscriber.Close()
 }
 
-func NewObservable(any Iterable) *Observable {
+func NewObservable[T any](iter Iterable[T]) *Observable[T] {
-	observable := &Observable{
+	observable := &Observable[T]{
-		iterable: any,
+		iterable: iter,
-		listener: map[Subscription]*Subscriber{},
+		listener: map[Subscription[T]]*Subscriber[T]{},
 	}
 	go observable.process()
 	return observable

common/observable/observable_test.go

@@ -9,8 +9,8 @@ import (
 	"go.uber.org/atomic"
 )
 
-func iterator(item []any) chan any {
+func iterator[T any](item []T) chan T {
-	ch := make(chan any)
+	ch := make(chan T)
 	go func() {
 		time.Sleep(100 * time.Millisecond)
 		for _, elm := range item {
@@ -22,8 +22,8 @@ func iterator(item []any) chan any {
 }
 
 func TestObservable(t *testing.T) {
-	iter := iterator([]any{1, 2, 3, 4, 5})
+	iter := iterator[int]([]int{1, 2, 3, 4, 5})
-	src := NewObservable(iter)
+	src := NewObservable[int](iter)
 	data, err := src.Subscribe()
 	assert.Nil(t, err)
 	count := 0
@@ -34,15 +34,15 @@ func TestObservable(t *testing.T) {
 }
 
 func TestObservable_MultiSubscribe(t *testing.T) {
-	iter := iterator([]any{1, 2, 3, 4, 5})
+	iter := iterator[int]([]int{1, 2, 3, 4, 5})
-	src := NewObservable(iter)
+	src := NewObservable[int](iter)
 	ch1, _ := src.Subscribe()
 	ch2, _ := src.Subscribe()
 	count := atomic.NewInt32(0)
 
 	var wg sync.WaitGroup
 	wg.Add(2)
-	waitCh := func(ch <-chan any) {
+	waitCh := func(ch <-chan int) {
 		for range ch {
 			count.Inc()
 		}
@@ -55,8 +55,8 @@ func TestObservable_MultiSubscribe(t *testing.T) {
 }
 
 func TestObservable_UnSubscribe(t *testing.T) {
-	iter := iterator([]any{1, 2, 3, 4, 5})
+	iter := iterator[int]([]int{1, 2, 3, 4, 5})
-	src := NewObservable(iter)
+	src := NewObservable[int](iter)
 	data, err := src.Subscribe()
 	assert.Nil(t, err)
 	src.UnSubscribe(data)
@@ -65,8 +65,8 @@ func TestObservable_UnSubscribe(t *testing.T) {
 }
 
 func TestObservable_SubscribeClosedSource(t *testing.T) {
-	iter := iterator([]any{1})
+	iter := iterator[int]([]int{1})
-	src := NewObservable(iter)
+	src := NewObservable[int](iter)
 	data, _ := src.Subscribe()
 	<-data
 
@@ -75,18 +75,18 @@ func TestObservable_SubscribeClosedSource(t *testing.T) {
 }
 
 func TestObservable_UnSubscribeWithNotExistSubscription(t *testing.T) {
-	sub := Subscription(make(chan any))
+	sub := Subscription[int](make(chan int))
-	iter := iterator([]any{1})
+	iter := iterator[int]([]int{1})
-	src := NewObservable(iter)
+	src := NewObservable[int](iter)
 	src.UnSubscribe(sub)
 }
 
 func TestObservable_SubscribeGoroutineLeak(t *testing.T) {
-	iter := iterator([]any{1, 2, 3, 4, 5})
+	iter := iterator[int]([]int{1, 2, 3, 4, 5})
-	src := NewObservable(iter)
+	src := NewObservable[int](iter)
 	max := 100
 
-	var list []Subscription
+	var list []Subscription[int]
 	for i := 0; i < max; i++ {
 		ch, _ := src.Subscribe()
 		list = append(list, ch)
@@ -94,7 +94,7 @@ func TestObservable_SubscribeGoroutineLeak(t *testing.T) {
 
 	var wg sync.WaitGroup
 	wg.Add(max)
-	waitCh := func(ch <-chan any) {
+	waitCh := func(ch <-chan int) {
 		for range ch {
 		}
 		wg.Done()
@@ -115,11 +115,11 @@ func TestObservable_SubscribeGoroutineLeak(t *testing.T) {
 }
 
 func Benchmark_Observable_1000(b *testing.B) {
-	ch := make(chan any)
+	ch := make(chan int)
-	o := NewObservable(ch)
+	o := NewObservable[int](ch)
 	num := 1000
 
-	subs := []Subscription{}
+	subs := []Subscription[int]{}
 	for i := 0; i < num; i++ {
 		sub, _ := o.Subscribe()
 		subs = append(subs, sub)
@@ -130,7 +130,7 @@ func Benchmark_Observable_1000(b *testing.B) {
 
 	b.ResetTimer()
 	for _, sub := range subs {
-		go func(s Subscription) {
+		go func(s Subscription[int]) {
 			for range s {
 			}
 			wg.Done()

common/observable/subscriber.go

@@ -4,30 +4,30 @@ import (
 	"sync"
 )
 
-type Subscription <-chan any
+type Subscription[T any] <-chan T
 
-type Subscriber struct {
+type Subscriber[T any] struct {
-	buffer chan any
+	buffer chan T
 	once   sync.Once
 }
 
-func (s *Subscriber) Emit(item any) {
+func (s *Subscriber[T]) Emit(item T) {
 	s.buffer <- item
 }
 
-func (s *Subscriber) Out() Subscription {
+func (s *Subscriber[T]) Out() Subscription[T] {
 	return s.buffer
 }
 
-func (s *Subscriber) Close() {
+func (s *Subscriber[T]) Close() {
 	s.once.Do(func() {
 		close(s.buffer)
 	})
 }
 
-func newSubscriber() *Subscriber {
+func newSubscriber[T any]() *Subscriber[T] {
-	sub := &Subscriber{
+	sub := &Subscriber[T]{
-		buffer: make(chan any, 200),
+		buffer: make(chan T, 200),
 	}
 	return sub
 }

common/picker/picker.go

@@ -9,7 +9,7 @@ import (
 // Picker provides synchronization, and Context cancelation
 // for groups of goroutines working on subtasks of a common task.
 // Inspired by errGroup
-type Picker struct {
+type Picker[T any] struct {
 	ctx    context.Context
 	cancel func()
 
@@ -17,12 +17,12 @@ type Picker struct {
 
 	once    sync.Once
 	errOnce sync.Once
-	result  any
+	result  T
 	err     error
 }
 
-func newPicker(ctx context.Context, cancel func()) *Picker {
+func newPicker[T any](ctx context.Context, cancel func()) *Picker[T] {
-	return &Picker{
+	return &Picker[T]{
 		ctx:    ctx,
 		cancel: cancel,
 	}
@@ -30,20 +30,20 @@ func newPicker(ctx context.Context, cancel func()) *Picker {
 
 // WithContext returns a new Picker and an associated Context derived from ctx.
 // and cancel when first element return.
-func WithContext(ctx context.Context) (*Picker, context.Context) {
+func WithContext[T any](ctx context.Context) (*Picker[T], context.Context) {
 	ctx, cancel := context.WithCancel(ctx)
-	return newPicker(ctx, cancel), ctx
+	return newPicker[T](ctx, cancel), ctx
 }
 
 // WithTimeout returns a new Picker and an associated Context derived from ctx with timeout.
-func WithTimeout(ctx context.Context, timeout time.Duration) (*Picker, context.Context) {
+func WithTimeout[T any](ctx context.Context, timeout time.Duration) (*Picker[T], context.Context) {
 	ctx, cancel := context.WithTimeout(ctx, timeout)
-	return newPicker(ctx, cancel), ctx
+	return newPicker[T](ctx, cancel), ctx
 }
 
 // Wait blocks until all function calls from the Go method have returned,
 // then returns the first nil error result (if any) from them.
-func (p *Picker) Wait() any {
+func (p *Picker[T]) Wait() T {
 	p.wg.Wait()
 	if p.cancel != nil {
 		p.cancel()
@@ -52,13 +52,13 @@ func (p *Picker) Wait() any {
 }
 
 // Error return the first error (if all success return nil)
-func (p *Picker) Error() error {
+func (p *Picker[T]) Error() error {
 	return p.err
 }
 
 // Go calls the given function in a new goroutine.
 // The first call to return a nil error cancels the group; its result will be returned by Wait.
-func (p *Picker) Go(f func() (any, error)) {
+func (p *Picker[T]) Go(f func() (T, error)) {
 	p.wg.Add(1)
 
 	go func() {

common/picker/picker_test.go

@@ -8,33 +8,38 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
-func sleepAndSend(ctx context.Context, delay int, input any) func() (any, error) {
+func sleepAndSend[T any](ctx context.Context, delay int, input T) func() (T, error) {
-	return func() (any, error) {
+	return func() (T, error) {
 		timer := time.NewTimer(time.Millisecond * time.Duration(delay))
 		select {
 		case <-timer.C:
 			return input, nil
 		case <-ctx.Done():
-			return nil, ctx.Err()
+			return getZero[T](), ctx.Err()
 		}
 	}
 }
 
 func TestPicker_Basic(t *testing.T) {
-	picker, ctx := WithContext(context.Background())
+	picker, ctx := WithContext[int](context.Background())
 	picker.Go(sleepAndSend(ctx, 30, 2))
 	picker.Go(sleepAndSend(ctx, 20, 1))
 
 	number := picker.Wait()
 	assert.NotNil(t, number)
-	assert.Equal(t, number.(int), 1)
+	assert.Equal(t, number, 1)
 }
 
 func TestPicker_Timeout(t *testing.T) {
-	picker, ctx := WithTimeout(context.Background(), time.Millisecond*5)
+	picker, ctx := WithTimeout[int](context.Background(), time.Millisecond*5)
 	picker.Go(sleepAndSend(ctx, 20, 1))
 
 	number := picker.Wait()
-	assert.Nil(t, number)
+	assert.Equal(t, number, getZero[int]())
 	assert.NotNil(t, picker.Error())
 }
+
+func getZero[T any]() T {
+	var result T
+	return result
+}

common/pool/alloc.go

@@ -52,8 +52,8 @@ func (alloc *Allocator) Put(buf []byte) error {
 		return errors.New("allocator Put() incorrect buffer size")
 	}
 
-	//lint:ignore SA6002 ignore temporarily
 	//nolint
+	//lint:ignore SA6002 ignore temporarily
 	alloc.buffers[bits].Put(buf)
 	return nil
 }

common/pool/sing.go

@@ -0,0 +1,7 @@
+package pool
+
+import "github.com/sagernet/sing/common/buf"
+
+func init() {
+	buf.DefaultAllocator = defaultAllocator
+}

common/singledo/singledo.go

@@ -5,28 +5,27 @@ import (
 	"time"
 )
 
-type call struct {
+type call[T any] struct {
 	wg  sync.WaitGroup
-	val any
+	val T
 	err error
 }
 
-type Single struct {
+type Single[T any] struct {
 	mux    sync.Mutex
 	last   time.Time
 	wait   time.Duration
-	call   *call
+	call   *call[T]
-	result *Result
+	result *Result[T]
 }
 
-type Result struct {
+type Result[T any] struct {
-	Val any
+	Val T
 	Err error
 }
 
 // Do single.Do likes sync.singleFlight
-//lint:ignore ST1008 it likes sync.singleFlight
+func (s *Single[T]) Do(fn func() (T, error)) (v T, err error, shared bool) {
-func (s *Single) Do(fn func() (any, error)) (v any, err error, shared bool) {
 	s.mux.Lock()
 	now := time.Now()
 	if now.Before(s.last.Add(s.wait)) {
@@ -34,31 +33,31 @@ func (s *Single) Do(fn func() (any, error)) (v any, err error, shared bool) {
 		return s.result.Val, s.result.Err, true
 	}
 
-	if call := s.call; call != nil {
+	if callM := s.call; callM != nil {
 		s.mux.Unlock()
-		call.wg.Wait()
+		callM.wg.Wait()
-		return call.val, call.err, true
+		return callM.val, callM.err, true
 	}
 
-	call := &call{}
+	callM := &call[T]{}
-	call.wg.Add(1)
+	callM.wg.Add(1)
-	s.call = call
+	s.call = callM
 	s.mux.Unlock()
-	call.val, call.err = fn()
+	callM.val, callM.err = fn()
-	call.wg.Done()
+	callM.wg.Done()
 
 	s.mux.Lock()
 	s.call = nil
-	s.result = &Result{call.val, call.err}
+	s.result = &Result[T]{callM.val, callM.err}
 	s.last = now
 	s.mux.Unlock()
-	return call.val, call.err, false
+	return callM.val, callM.err, false
 }
 
-func (s *Single) Reset() {
+func (s *Single[T]) Reset() {
 	s.last = time.Time{}
 }
 
-func NewSingle(wait time.Duration) *Single {
+func NewSingle[T any](wait time.Duration) *Single[T] {
-	return &Single{wait: wait}
+	return &Single[T]{wait: wait}
 }

common/singledo/singledo_test.go

@@ -10,13 +10,13 @@ import (
 )
 
 func TestBasic(t *testing.T) {
-	single := NewSingle(time.Millisecond * 30)
+	single := NewSingle[int](time.Millisecond * 30)
 	foo := 0
 	shardCount := atomic.NewInt32(0)
-	call := func() (any, error) {
+	call := func() (int, error) {
 		foo++
 		time.Sleep(time.Millisecond * 5)
-		return nil, nil
+		return 0, nil
 	}
 
 	var wg sync.WaitGroup
@@ -38,32 +38,32 @@ func TestBasic(t *testing.T) {
 }
 
 func TestTimer(t *testing.T) {
-	single := NewSingle(time.Millisecond * 30)
+	single := NewSingle[int](time.Millisecond * 30)
 	foo := 0
-	call := func() (any, error) {
+	callM := func() (int, error) {
 		foo++
-		return nil, nil
+		return 0, nil
 	}
 
-	single.Do(call)
+	_, _, _ = single.Do(callM)
 	time.Sleep(10 * time.Millisecond)
-	_, _, shard := single.Do(call)
+	_, _, shard := single.Do(callM)
 
 	assert.Equal(t, 1, foo)
 	assert.True(t, shard)
 }
 
 func TestReset(t *testing.T) {
-	single := NewSingle(time.Millisecond * 30)
+	single := NewSingle[int](time.Millisecond * 30)
 	foo := 0
-	call := func() (any, error) {
+	callM := func() (int, error) {
 		foo++
-		return nil, nil
+		return 0, nil
 	}
 
-	single.Do(call)
+	_, _, _ = single.Do(callM)
 	single.Reset()
-	single.Do(call)
+	_, _, _ = single.Do(callM)
 
 	assert.Equal(t, 2, foo)
 }

common/structure/structure.go

@@ -3,6 +3,7 @@ package structure
 // references: https://github.com/mitchellh/mapstructure
 
 import (
+	"encoding/base64"
 	"fmt"
 	"reflect"
 	"strconv"
@@ -13,8 +14,11 @@ import (
 type Option struct {
 	TagName          string
 	WeaklyTypedInput bool
+	KeyReplacer      *strings.Replacer
 }
 
+var DefaultKeyReplacer = strings.NewReplacer("_", "-")
+
 // Decoder is the core of structure
 type Decoder struct {
 	option *Option
@@ -31,7 +35,7 @@ func NewDecoder(option Option) *Decoder {
 // Decode transform a map[string]any to a struct
 func (d *Decoder) Decode(src map[string]any, dst any) error {
 	if reflect.TypeOf(dst).Kind() != reflect.Ptr {
-		return fmt.Errorf("Decode must recive a ptr struct")
+		return fmt.Errorf("decode must recive a ptr struct")
 	}
 	t := reflect.TypeOf(dst).Elem()
 	v := reflect.ValueOf(dst).Elem()
@@ -49,6 +53,23 @@ func (d *Decoder) Decode(src map[string]any, dst any) error {
 		omitempty := found && omitKey == "omitempty"
 
 		value, ok := src[key]
+		if !ok {
+			if d.option.KeyReplacer != nil {
+				key = d.option.KeyReplacer.Replace(key)
+			}
+
+			for _strKey := range src {
+				strKey := _strKey
+				if d.option.KeyReplacer != nil {
+					strKey = d.option.KeyReplacer.Replace(strKey)
+				}
+				if strings.EqualFold(key, strKey) {
+					value = src[_strKey]
+					ok = true
+					break
+				}
+			}
+		}
 		if !ok || value == nil {
 			if omitempty {
 				continue
@@ -65,9 +86,16 @@ func (d *Decoder) Decode(src map[string]any, dst any) error {
 }
 
 func (d *Decoder) decode(name string, data any, val reflect.Value) error {
-	switch val.Kind() {
+	kind := val.Kind()
-	case reflect.Int:
+	switch {
+	case isInt(kind):
 		return d.decodeInt(name, data, val)
+	case isUint(kind):
+		return d.decodeUint(name, data, val)
+	case isFloat(kind):
+		return d.decodeFloat(name, data, val)
+	}
+	switch kind {
 	case reflect.String:
 		return d.decodeString(name, data, val)
 	case reflect.Bool:
@@ -85,13 +113,42 @@ func (d *Decoder) decode(name string, data any, val reflect.Value) error {
 	}
 }
 
+func isInt(kind reflect.Kind) bool {
+	switch kind {
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return true
+	default:
+		return false
+	}
+}
+
+func isUint(kind reflect.Kind) bool {
+	switch kind {
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
+		return true
+	default:
+		return false
+	}
+}
+
+func isFloat(kind reflect.Kind) bool {
+	switch kind {
+	case reflect.Float32, reflect.Float64:
+		return true
+	default:
+		return false
+	}
+}
+
 func (d *Decoder) decodeInt(name string, data any, val reflect.Value) (err error) {
 	dataVal := reflect.ValueOf(data)
 	kind := dataVal.Kind()
 	switch {
-	case kind == reflect.Int:
+	case isInt(kind):
 		val.SetInt(dataVal.Int())
-	case kind == reflect.Float64 && d.option.WeaklyTypedInput:
+	case isUint(kind) && d.option.WeaklyTypedInput:
+		val.SetInt(int64(dataVal.Uint()))
+	case isFloat(kind) && d.option.WeaklyTypedInput:
 		val.SetInt(int64(dataVal.Float()))
 	case kind == reflect.String && d.option.WeaklyTypedInput:
 		var i int64
@@ -110,14 +167,72 @@ func (d *Decoder) decodeInt(name string, data any, val reflect.Value) (err error
 	return err
 }
 
+func (d *Decoder) decodeUint(name string, data any, val reflect.Value) (err error) {
+	dataVal := reflect.ValueOf(data)
+	kind := dataVal.Kind()
+	switch {
+	case isUint(kind):
+		val.SetUint(dataVal.Uint())
+	case isInt(kind) && d.option.WeaklyTypedInput:
+		val.SetUint(uint64(dataVal.Int()))
+	case isFloat(kind) && d.option.WeaklyTypedInput:
+		val.SetUint(uint64(dataVal.Float()))
+	case kind == reflect.String && d.option.WeaklyTypedInput:
+		var i uint64
+		i, err = strconv.ParseUint(dataVal.String(), 0, val.Type().Bits())
+		if err == nil {
+			val.SetUint(i)
+		} else {
+			err = fmt.Errorf("cannot parse '%s' as int: %s", name, err)
+		}
+	default:
+		err = fmt.Errorf(
+			"'%s' expected type '%s', got unconvertible type '%s'",
+			name, val.Type(), dataVal.Type(),
+		)
+	}
+	return err
+}
+
+func (d *Decoder) decodeFloat(name string, data any, val reflect.Value) (err error) {
+	dataVal := reflect.ValueOf(data)
+	kind := dataVal.Kind()
+	switch {
+	case isFloat(kind):
+		val.SetFloat(dataVal.Float())
+	case isUint(kind):
+		val.SetFloat(float64(dataVal.Uint()))
+	case isInt(kind) && d.option.WeaklyTypedInput:
+		val.SetFloat(float64(dataVal.Int()))
+	case kind == reflect.String && d.option.WeaklyTypedInput:
+		var i float64
+		i, err = strconv.ParseFloat(dataVal.String(), val.Type().Bits())
+		if err == nil {
+			val.SetFloat(i)
+		} else {
+			err = fmt.Errorf("cannot parse '%s' as int: %s", name, err)
+		}
+	default:
+		err = fmt.Errorf(
+			"'%s' expected type '%s', got unconvertible type '%s'",
+			name, val.Type(), dataVal.Type(),
+		)
+	}
+	return err
+}
+
 func (d *Decoder) decodeString(name string, data any, val reflect.Value) (err error) {
 	dataVal := reflect.ValueOf(data)
 	kind := dataVal.Kind()
 	switch {
 	case kind == reflect.String:
 		val.SetString(dataVal.String())
-	case kind == reflect.Int && d.option.WeaklyTypedInput:
+	case isInt(kind) && d.option.WeaklyTypedInput:
 		val.SetString(strconv.FormatInt(dataVal.Int(), 10))
+	case isUint(kind) && d.option.WeaklyTypedInput:
+		val.SetString(strconv.FormatUint(dataVal.Uint(), 10))
+	case isFloat(kind) && d.option.WeaklyTypedInput:
+		val.SetString(strconv.FormatFloat(dataVal.Float(), 'E', -1, dataVal.Type().Bits()))
 	default:
 		err = fmt.Errorf(
 			"'%s' expected type '%s', got unconvertible type '%s'",
@@ -133,8 +248,10 @@ func (d *Decoder) decodeBool(name string, data any, val reflect.Value) (err erro
 	switch {
 	case kind == reflect.Bool:
 		val.SetBool(dataVal.Bool())
-	case kind == reflect.Int && d.option.WeaklyTypedInput:
+	case isInt(kind) && d.option.WeaklyTypedInput:
 		val.SetBool(dataVal.Int() != 0)
+	case isUint(kind) && d.option.WeaklyTypedInput:
+		val.SetString(strconv.FormatUint(dataVal.Uint(), 10))
 	default:
 		err = fmt.Errorf(
 			"'%s' expected type '%s', got unconvertible type '%s'",
@@ -149,6 +266,17 @@ func (d *Decoder) decodeSlice(name string, data any, val reflect.Value) error {
 	valType := val.Type()
 	valElemType := valType.Elem()
 
+	if dataVal.Kind() == reflect.String && valElemType.Kind() == reflect.Uint8 { // from encoding/json
+		s := []byte(dataVal.String())
+		b := make([]byte, base64.StdEncoding.DecodedLen(len(s)))
+		n, err := base64.StdEncoding.Decode(b, s)
+		if err != nil {
+			return fmt.Errorf("try decode '%s' by base64 error: %w", name, err)
+		}
+		val.SetBytes(b[:n])
+		return nil
+	}
+
 	if dataVal.Kind() != reflect.Slice {
 		return fmt.Errorf("'%s' is not a slice", name)
 	}
@@ -159,9 +287,19 @@ func (d *Decoder) decodeSlice(name string, data any, val reflect.Value) error {
 		for valSlice.Len() <= i {
 			valSlice = reflect.Append(valSlice, reflect.Zero(valElemType))
 		}
-		currentField := valSlice.Index(i)
-
 		fieldName := fmt.Sprintf("%s[%d]", name, i)
+		if currentData == nil {
+			// in weakly type mode, null will convert to zero value
+			if d.option.WeaklyTypedInput {
+				continue
+			}
+			// in non-weakly type mode, null will convert to nil if element's zero value is nil, otherwise return an error
+			if elemKind := valElemType.Kind(); elemKind == reflect.Map || elemKind == reflect.Slice {
+				continue
+			}
+			return fmt.Errorf("'%s' can not be null", fieldName)
+		}
+		currentField := valSlice.Index(i)
 		if err := d.decode(fieldName, currentData, currentField); err != nil {
 			return err
 		}
@@ -291,7 +429,7 @@ func (d *Decoder) decodeStructFromMap(name string, dataVal, val reflect.Value) e
 		field reflect.StructField
 		val   reflect.Value
 	}
-	fields := []field{}
+	var fields []field
 	for len(structs) > 0 {
 		structVal := structs[0]
 		structs = structs[1:]
@@ -343,12 +481,18 @@ func (d *Decoder) decodeStructFromMap(name string, dataVal, val reflect.Value) e
 		if !rawMapVal.IsValid() {
 			// Do a slower search by iterating over each key and
 			// doing case-insensitive search.
+			if d.option.KeyReplacer != nil {
+				fieldName = d.option.KeyReplacer.Replace(fieldName)
+			}
 			for dataValKey := range dataValKeys {
 				mK, ok := dataValKey.Interface().(string)
 				if !ok {
 					// Not a string key
 					continue
 				}
+				if d.option.KeyReplacer != nil {
+					mK = d.option.KeyReplacer.Replace(mK)
+				}
 
 				if strings.EqualFold(mK, fieldName) {
 					rawMapKey = dataValKey

common/structure/structure_test.go

@@ -137,3 +137,45 @@ func TestStructure_Nest(t *testing.T) {
 	assert.Nil(t, err)
 	assert.Equal(t, s.BazOptional, goal)
 }
+
+func TestStructure_SliceNilValue(t *testing.T) {
+	rawMap := map[string]any{
+		"foo": 1,
+		"bar": []any{"bar", nil},
+	}
+
+	goal := &BazSlice{
+		Foo: 1,
+		Bar: []string{"bar", ""},
+	}
+
+	s := &BazSlice{}
+	err := weakTypeDecoder.Decode(rawMap, s)
+	assert.Nil(t, err)
+	assert.Equal(t, goal.Bar, s.Bar)
+
+	s = &BazSlice{}
+	err = decoder.Decode(rawMap, s)
+	assert.NotNil(t, err)
+}
+
+func TestStructure_SliceNilValueComplex(t *testing.T) {
+	rawMap := map[string]any{
+		"bar": []any{map[string]any{"bar": "foo"}, nil},
+	}
+
+	s := &struct {
+		Bar []map[string]any `test:"bar"`
+	}{}
+
+	err := decoder.Decode(rawMap, s)
+	assert.Nil(t, err)
+	assert.Nil(t, s.Bar[1])
+
+	ss := &struct {
+		Bar []Baz `test:"bar"`
+	}{}
+
+	err = decoder.Decode(rawMap, ss)
+	assert.NotNil(t, err)
+}

common/utils/range.go

@@ -0,0 +1,44 @@
+package utils
+
+import (
+	"golang.org/x/exp/constraints"
+)
+
+type Range[T constraints.Ordered] struct {
+	start T
+	end   T
+}
+
+func NewRange[T constraints.Ordered](start, end T) *Range[T] {
+	if start > end {
+		return &Range[T]{
+			start: end,
+			end:   start,
+		}
+	}
+
+	return &Range[T]{
+		start: start,
+		end:   end,
+	}
+}
+
+func (r *Range[T]) Contains(t T) bool {
+	return t >= r.start && t <= r.end
+}
+
+func (r *Range[T]) LeftContains(t T) bool {
+	return t >= r.start && t < r.end
+}
+
+func (r *Range[T]) RightContains(t T) bool {
+	return t > r.start && t <= r.end
+}
+
+func (r *Range[T]) Start() T {
+	return r.start
+}
+
+func (r *Range[T]) End() T {
+	return r.end
+}

common/utils/uuid.go

@@ -0,0 +1,16 @@
+package utils
+
+import (
+	"github.com/gofrs/uuid"
+)
+
+var uuidNamespace, _ = uuid.FromString("00000000-0000-0000-0000-000000000000")
+
+// UUIDMap https://github.com/XTLS/Xray-core/issues/158#issue-783294090
+func UUIDMap(str string) (uuid.UUID, error) {
+	u, err := uuid.FromString(str)
+	if err != nil {
+		return uuid.NewV5(uuidNamespace, str), nil
+	}
+	return u, nil
+}

common/utils/uuid_test.go

@@ -0,0 +1,74 @@
+package utils
+
+import (
+	"github.com/gofrs/uuid"
+	"reflect"
+	"testing"
+)
+
+func TestUUIDMap(t *testing.T) {
+	type args struct {
+		str string
+	}
+
+	tests := []struct {
+		name    string
+		args    args
+		want    uuid.UUID
+		wantErr bool
+	}{
+		{
+			name: "uuid-test-1",
+			args: args{
+				str: "82410302-039e-41b6-98b0-d964084b4170",
+			},
+			want:    uuid.FromStringOrNil("82410302-039e-41b6-98b0-d964084b4170"),
+			wantErr: false,
+		},
+		{
+			name: "uuid-test-2",
+			args: args{
+				str: "88c502e6-d7eb-4c8e-8259-94cb13d83c77",
+			},
+			want:    uuid.FromStringOrNil("88c502e6-d7eb-4c8e-8259-94cb13d83c77"),
+			wantErr: false,
+		},
+		{
+			name: "uuid-map-1",
+			args: args{
+				str: "123456",
+			},
+			want:    uuid.FromStringOrNil("f8598425-92f2-5508-a071-4fc67f9040ac"),
+			wantErr: false,
+		},
+		// GENERATED BY 'xray uuid -i'
+		{
+			name: "uuid-map-2",
+			args: args{
+				str: "a9dk23bz0",
+			},
+			want:    uuid.FromStringOrNil("c91481b6-fc0f-5d9e-b166-5ddf07b9c3c5"),
+			wantErr: false,
+		},
+		{
+			name: "uuid-map-2",
+			args: args{
+				str: "中文123",
+			},
+			want:    uuid.FromStringOrNil("145c544c-2229-59e5-8dbb-3f33b7610d26"),
+			wantErr: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := UUIDMap(tt.args.str)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("UUIDMap() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+			if !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("UUIDMap() got = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}

component/dhcp/dhcp.go

@@ -4,7 +4,9 @@ import (
 	"context"
 	"errors"
 	"net"
+	"net/netip"
 
+	"github.com/Dreamacro/clash/common/nnip"
 	"github.com/Dreamacro/clash/component/iface"
 
 	"github.com/insomniacslk/dhcp/dhcpv4"
@@ -15,14 +17,16 @@ var (
 	ErrNotFound      = errors.New("DNS option not found")
 )
 
-func ResolveDNSFromDHCP(context context.Context, ifaceName string) ([]net.IP, error) {
+func ResolveDNSFromDHCP(context context.Context, ifaceName string) ([]netip.Addr, error) {
 	conn, err := ListenDHCPClient(context, ifaceName)
 	if err != nil {
 		return nil, err
 	}
-	defer conn.Close()
+	defer func() {
+		_ = conn.Close()
+	}()
 
-	result := make(chan []net.IP, 1)
+	result := make(chan []netip.Addr, 1)
 
 	ifaceObj, err := iface.ResolveInterface(ifaceName)
 	if err != nil {
@@ -52,7 +56,7 @@ func ResolveDNSFromDHCP(context context.Context, ifaceName string) ([]net.IP, er
 	}
 }
 
-func receiveOffer(conn net.PacketConn, id dhcpv4.TransactionID, result chan<- []net.IP) {
+func receiveOffer(conn net.PacketConn, id dhcpv4.TransactionID, result chan<- []netip.Addr) {
 	defer close(result)
 
 	buf := make([]byte, dhcpv4.MaxMessageSize)
@@ -77,11 +81,17 @@ func receiveOffer(conn net.PacketConn, id dhcpv4.TransactionID, result chan<- []
 		}
 
 		dns := pkt.DNS()
-		if len(dns) == 0 {
+		l := len(dns)
+		if l == 0 {
 			return
 		}
 
-		result <- dns
+		dnsAddr := make([]netip.Addr, l)
+		for i := 0; i < l; i++ {
+			dnsAddr[i] = nnip.IpToAddr(dns[i])
+		}
+
+		result <- dnsAddr
 
 		return
 	}

component/dialer/bind_darwin.go

@@ -1,7 +1,9 @@
 package dialer
 
 import (
+	"context"
 	"net"
+	"net/netip"
 	"syscall"
 
 	"github.com/Dreamacro/clash/component/iface"
@@ -9,23 +11,12 @@ import (
 	"golang.org/x/sys/unix"
 )
 
-type controlFn = func(network, address string, c syscall.RawConn) error
+func bindControl(ifaceIdx int) controlFn {
-
+	return func(ctx context.Context, network, address string, c syscall.RawConn) (err error) {
-func bindControl(ifaceIdx int, chain controlFn) controlFn {
+		addrPort, err := netip.ParseAddrPort(address)
-	return func(network, address string, c syscall.RawConn) (err error) {
+		if err == nil && !addrPort.Addr().IsGlobalUnicast() {
-		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) {
@@ -45,13 +36,13 @@ func bindControl(ifaceIdx int, chain controlFn) controlFn {
 	}
 }
 
-func bindIfaceToDialer(ifaceName string, dialer *net.Dialer, _ string, _ net.IP) error {
+func bindIfaceToDialer(ifaceName string, dialer *net.Dialer, _ string, _ netip.Addr) error {
 	ifaceObj, err := iface.ResolveInterface(ifaceName)
 	if err != nil {
 		return err
 	}
 
-	dialer.Control = bindControl(ifaceObj.Index, dialer.Control)
+	addControlToDialer(dialer, bindControl(ifaceObj.Index))
 	return nil
 }
 
@@ -61,6 +52,10 @@ func bindIfaceToListenConfig(ifaceName string, lc *net.ListenConfig, _, address
 		return "", err
 	}
 
-	lc.Control = bindControl(ifaceObj.Index, lc.Control)
+	addControlToListenConfig(lc, bindControl(ifaceObj.Index))
 	return address, nil
 }
+
+func ParseNetwork(network string, addr netip.Addr) string {
+	return network
+}

component/dialer/bind_linux.go

@@ -1,29 +1,20 @@
 package dialer
 
 import (
+	"context"
 	"net"
+	"net/netip"
 	"syscall"
 
 	"golang.org/x/sys/unix"
 )
 
-type controlFn = func(network, address string, c syscall.RawConn) error
+func bindControl(ifaceName string) controlFn {
-
+	return func(ctx context.Context, network, address string, c syscall.RawConn) (err error) {
-func bindControl(ifaceName string, chain controlFn) controlFn {
+		addrPort, err := netip.ParseAddrPort(address)
-	return func(network, address string, c syscall.RawConn) (err error) {
+		if err == nil && !addrPort.Addr().IsGlobalUnicast() {
-		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) {
@@ -38,14 +29,18 @@ func bindControl(ifaceName string, chain controlFn) controlFn {
 	}
 }
 
-func bindIfaceToDialer(ifaceName string, dialer *net.Dialer, _ string, _ net.IP) error {
+func bindIfaceToDialer(ifaceName string, dialer *net.Dialer, _ string, _ netip.Addr) error {
-	dialer.Control = bindControl(ifaceName, dialer.Control)
+	addControlToDialer(dialer, bindControl(ifaceName))
 
 	return nil
 }
 
 func bindIfaceToListenConfig(ifaceName string, lc *net.ListenConfig, _, address string) (string, error) {
-	lc.Control = bindControl(ifaceName, lc.Control)
+	addControlToListenConfig(lc, bindControl(ifaceName))
 
 	return address, nil
 }
+
+func ParseNetwork(network string, addr netip.Addr) string {
+	return network
+}

component/dialer/bind_others.go

@@ -1,30 +1,31 @@
-//go:build !linux && !darwin
+//go:build !linux && !darwin && !windows
 
 package dialer
 
 import (
 	"net"
+	"net/netip"
 	"strconv"
 	"strings"
 
 	"github.com/Dreamacro/clash/component/iface"
 )
 
-func lookupLocalAddr(ifaceName string, network string, destination net.IP, port int) (net.Addr, error) {
+func lookupLocalAddr(ifaceName string, network string, destination netip.Addr, port int) (net.Addr, error) {
 	ifaceObj, err := iface.ResolveInterface(ifaceName)
 	if err != nil {
 		return nil, err
 	}
 
-	var addr *net.IPNet
+	var addr *netip.Prefix
 	switch network {
 	case "udp4", "tcp4":
 		addr, err = ifaceObj.PickIPv4Addr(destination)
 	case "tcp6", "udp6":
 		addr, err = ifaceObj.PickIPv6Addr(destination)
 	default:
-		if destination != nil {
+		if destination.IsValid() {
-			if destination.To4() != nil {
+			if destination.Is4() {
 				addr, err = ifaceObj.PickIPv4Addr(destination)
 			} else {
 				addr, err = ifaceObj.PickIPv6Addr(destination)
@@ -39,12 +40,12 @@ func lookupLocalAddr(ifaceName string, network string, destination net.IP, port
 
 	if strings.HasPrefix(network, "tcp") {
 		return &net.TCPAddr{
-			IP:   addr.IP,
+			IP:   addr.Addr().AsSlice(),
 			Port: port,
 		}, nil
 	} else if strings.HasPrefix(network, "udp") {
 		return &net.UDPAddr{
-			IP:   addr.IP,
+			IP:   addr.Addr().AsSlice(),
 			Port: port,
 		}, nil
 	}
@@ -52,7 +53,7 @@ func lookupLocalAddr(ifaceName string, network string, destination net.IP, port
 	return nil, iface.ErrAddrNotFound
 }
 
-func bindIfaceToDialer(ifaceName string, dialer *net.Dialer, network string, destination net.IP) error {
+func bindIfaceToDialer(ifaceName string, dialer *net.Dialer, network string, destination netip.Addr) error {
 	if !destination.IsGlobalUnicast() {
 		return nil
 	}
@@ -83,10 +84,20 @@ func bindIfaceToListenConfig(ifaceName string, _ *net.ListenConfig, network, add
 
 	local, _ := strconv.ParseUint(port, 10, 16)
 
-	addr, err := lookupLocalAddr(ifaceName, network, nil, int(local))
+	addr, err := lookupLocalAddr(ifaceName, network, netip.Addr{}, int(local))
 	if err != nil {
 		return "", err
 	}
 
 	return addr.String(), nil
 }
+
+func ParseNetwork(network string, addr netip.Addr) string {
+	// fix bindIfaceToListenConfig() force bind to an ipv4 address
+	if !strings.HasSuffix(network, "4") &&
+		!strings.HasSuffix(network, "6") &&
+		addr.Unmap().Is6() {
+		network += "6"
+	}
+	return network
+}

component/dialer/bind_windows.go

@@ -0,0 +1,92 @@
+package dialer
+
+import (
+	"context"
+	"encoding/binary"
+	"net"
+	"net/netip"
+	"syscall"
+	"unsafe"
+
+	"github.com/Dreamacro/clash/component/iface"
+)
+
+const (
+	IP_UNICAST_IF   = 31
+	IPV6_UNICAST_IF = 31
+)
+
+func bind4(handle syscall.Handle, ifaceIdx int) error {
+	var bytes [4]byte
+	binary.BigEndian.PutUint32(bytes[:], uint32(ifaceIdx))
+	idx := *(*uint32)(unsafe.Pointer(&bytes[0]))
+	return syscall.SetsockoptInt(handle, syscall.IPPROTO_IP, IP_UNICAST_IF, int(idx))
+}
+
+func bind6(handle syscall.Handle, ifaceIdx int) error {
+	return syscall.SetsockoptInt(handle, syscall.IPPROTO_IPV6, IPV6_UNICAST_IF, ifaceIdx)
+}
+
+func bindControl(ifaceIdx int) controlFn {
+	return func(ctx context.Context, network, address string, c syscall.RawConn) (err error) {
+		addrPort, err := netip.ParseAddrPort(address)
+		if err == nil && !addrPort.Addr().IsGlobalUnicast() {
+			return
+		}
+
+		var innerErr error
+		err = c.Control(func(fd uintptr) {
+			handle := syscall.Handle(fd)
+			bind6err := bind6(handle, ifaceIdx)
+			bind4err := bind4(handle, ifaceIdx)
+			switch network {
+			case "ip6", "tcp6":
+				innerErr = bind6err
+			case "ip4", "tcp4", "udp4":
+				innerErr = bind4err
+			case "udp6":
+				// golang will set network to udp6 when listenUDP on wildcard ip (eg: ":0", "")
+				if (!addrPort.Addr().IsValid() || addrPort.Addr().IsUnspecified()) && bind6err != nil {
+					// try bind ipv6, if failed, ignore. it's a workaround for windows disable interface ipv6
+					if bind4err != nil {
+						innerErr = bind6err
+					} else {
+						innerErr = bind4err
+					}
+				} else {
+					innerErr = bind6err
+				}
+			}
+		})
+
+		if innerErr != nil {
+			err = innerErr
+		}
+
+		return
+	}
+}
+
+func bindIfaceToDialer(ifaceName string, dialer *net.Dialer, _ string, _ netip.Addr) error {
+	ifaceObj, err := iface.ResolveInterface(ifaceName)
+	if err != nil {
+		return err
+	}
+
+	addControlToDialer(dialer, bindControl(ifaceObj.Index))
+	return nil
+}
+
+func bindIfaceToListenConfig(ifaceName string, lc *net.ListenConfig, _, address string) (string, error) {
+	ifaceObj, err := iface.ResolveInterface(ifaceName)
+	if err != nil {
+		return "", err
+	}
+
+	addControlToListenConfig(lc, bindControl(ifaceObj.Index))
+	return address, nil
+}
+
+func ParseNetwork(network string, addr netip.Addr) string {
+	return network
+}

component/dialer/control.go

@@ -0,0 +1,22 @@
+package dialer
+
+import (
+	"context"
+	"net"
+	"syscall"
+)
+
+type controlFn = func(ctx context.Context, network, address string, c syscall.RawConn) error
+
+func addControlToListenConfig(lc *net.ListenConfig, fn controlFn) {
+	llc := *lc
+	lc.Control = func(network, address string, c syscall.RawConn) (err error) {
+		switch {
+		case llc.Control != nil:
+			if err = llc.Control(network, address, c); err != nil {
+				return
+			}
+		}
+		return fn(context.Background(), network, address, c)
+	}
+}

component/dialer/control_go119.go

@@ -0,0 +1,22 @@
+//go:build !go1.20
+
+package dialer
+
+import (
+	"context"
+	"net"
+	"syscall"
+)
+
+func addControlToDialer(d *net.Dialer, fn controlFn) {
+	ld := *d
+	d.Control = func(network, address string, c syscall.RawConn) (err error) {
+		switch {
+		case ld.Control != nil:
+			if err = ld.Control(network, address, c); err != nil {
+				return
+			}
+		}
+		return fn(context.Background(), network, address, c)
+	}
+}

component/dialer/control_go120.go

@@ -0,0 +1,26 @@
+//go:build go1.20
+
+package dialer
+
+import (
+	"context"
+	"net"
+	"syscall"
+)
+
+func addControlToDialer(d *net.Dialer, fn controlFn) {
+	ld := *d
+	d.ControlContext = func(ctx context.Context, network, address string, c syscall.RawConn) (err error) {
+		switch {
+		case ld.ControlContext != nil:
+			if err = ld.ControlContext(ctx, network, address, c); err != nil {
+				return
+			}
+		case ld.Control != nil:
+			if err = ld.Control(network, address, c); err != nil {
+				return
+			}
+		}
+		return fn(ctx, network, address, c)
+	}
+}

component/dialer/dialer.go

@@ -3,12 +3,28 @@ package dialer
 import (
 	"context"
 	"errors"
+	"fmt"
 	"net"
+	"net/netip"
+	"strings"
+	"sync"
 
 	"github.com/Dreamacro/clash/component/resolver"
+
+	"go.uber.org/atomic"
 )
 
-func DialContext(ctx context.Context, network, address string, options ...Option) (net.Conn, error) {
+var (
+	dialMux                    sync.Mutex
+	actualSingleDialContext    = singleDialContext
+	actualDualStackDialContext = dualStackDialContext
+	tcpConcurrent              = false
+	DisableIPv6                = false
+	ErrorInvalidedNetworkStack = errors.New("invalided network stack")
+	ErrorDisableIPv6           = errors.New("IPv6 is disabled, dialer cancel")
+)
+
+func applyOptions(options ...Option) *option {
 	opt := &option{
 		interfaceName: DefaultInterface.Load(),
 		routingMark:   int(DefaultRoutingMark.Load()),
@@ -22,53 +38,34 @@ func DialContext(ctx context.Context, network, address string, options ...Option
 		o(opt)
 	}
 
+	return opt
+}
+
+func DialContext(ctx context.Context, network, address string, options ...Option) (net.Conn, error) {
+	opt := applyOptions(options...)
+
+	if opt.network == 4 || opt.network == 6 {
+		if strings.Contains(network, "tcp") {
+			network = "tcp"
+		} else {
+			network = "udp"
+		}
+
+		network = fmt.Sprintf("%s%d", network, opt.network)
+	}
+
 	switch network {
 	case "tcp4", "tcp6", "udp4", "udp6":
-		host, port, err := net.SplitHostPort(address)
+		return actualSingleDialContext(ctx, network, address, opt)
-		if err != nil {
-			return nil, err
-		}
-
-		var ip net.IP
-		switch network {
-		case "tcp4", "udp4":
-			if !opt.direct {
-				ip, err = resolver.ResolveIPv4ProxyServerHost(host)
-			} else {
-				ip, err = resolver.ResolveIPv4(host)
-			}
-		default:
-			if !opt.direct {
-				ip, err = resolver.ResolveIPv6ProxyServerHost(host)
-			} else {
-				ip, err = resolver.ResolveIPv6(host)
-			}
-		}
-		if err != nil {
-			return nil, err
-		}
-
-		return dialContext(ctx, network, ip, port, opt)
 	case "tcp", "udp":
-		return dualStackDialContext(ctx, network, address, opt)
+		return actualDualStackDialContext(ctx, network, address, opt)
 	default:
-		return nil, errors.New("network invalid")
+		return nil, ErrorInvalidedNetworkStack
 	}
 }
 
 func ListenPacket(ctx context.Context, network, address string, options ...Option) (net.PacketConn, error) {
-	cfg := &option{
+	cfg := applyOptions(options...)
-		interfaceName: DefaultInterface.Load(),
-		routingMark:   int(DefaultRoutingMark.Load()),
-	}
-
-	for _, o := range DefaultOptions {
-		o(cfg)
-	}
-
-	for _, o := range options {
-		o(cfg)
-	}
 
 	lc := &net.ListenConfig{}
 	if cfg.interfaceName != "" {
@@ -88,7 +85,25 @@ func ListenPacket(ctx context.Context, network, address string, options ...Optio
 	return lc.ListenPacket(ctx, network, address)
 }
 
-func dialContext(ctx context.Context, network string, destination net.IP, port string, opt *option) (net.Conn, error) {
+func SetDial(concurrent bool) {
+	dialMux.Lock()
+	tcpConcurrent = concurrent
+	if concurrent {
+		actualSingleDialContext = concurrentSingleDialContext
+		actualDualStackDialContext = concurrentDualStackDialContext
+	} else {
+		actualSingleDialContext = singleDialContext
+		actualDualStackDialContext = dualStackDialContext
+	}
+
+	dialMux.Unlock()
+}
+
+func GetDial() bool {
+	return tcpConcurrent
+}
+
+func dialContext(ctx context.Context, network string, destination netip.Addr, port string, opt *option) (net.Conn, error) {
 	dialer := &net.Dialer{}
 	if opt.interfaceName != "" {
 		if err := bindIfaceToDialer(opt.interfaceName, dialer, network, destination); err != nil {
@@ -99,7 +114,44 @@ func dialContext(ctx context.Context, network string, destination net.IP, port s
 		bindMarkToDialer(opt.routingMark, dialer, network, destination)
 	}
 
-	return dialer.DialContext(ctx, network, net.JoinHostPort(destination.String(), port))
+	if DisableIPv6 && destination.Is6() {
+		return nil, ErrorDisableIPv6
+	}
+
+	address := net.JoinHostPort(destination.String(), port)
+	if opt.tfo {
+		return dialTFO(ctx, *dialer, network, address)
+	}
+	return dialer.DialContext(ctx, network, address)
+}
+
+func singleDialContext(ctx context.Context, network string, address string, opt *option) (net.Conn, error) {
+	host, port, err := net.SplitHostPort(address)
+	if err != nil {
+		return nil, err
+	}
+
+	var ip netip.Addr
+	switch network {
+	case "tcp4", "udp4":
+		if opt.resolver == nil {
+			ip, err = resolver.ResolveIPv4ProxyServerHost(ctx, host)
+		} else {
+			ip, err = resolver.ResolveIPv4WithResolver(ctx, host, opt.resolver)
+		}
+	default:
+		if opt.resolver == nil {
+			ip, err = resolver.ResolveIPv6ProxyServerHost(ctx, host)
+		} else {
+			ip, err = resolver.ResolveIPv6WithResolver(ctx, host, opt.resolver)
+		}
+	}
+	if err != nil {
+		err = fmt.Errorf("dns resolve failed:%w", err)
+		return nil, err
+	}
+
+	return dialContext(ctx, network, ip, port, opt)
 }
 
 func dualStackDialContext(ctx context.Context, network, address string, opt *option) (net.Conn, error) {
@@ -121,33 +173,34 @@ func dualStackDialContext(ctx context.Context, network, address string, opt *opt
 	results := make(chan dialResult)
 	var primary, fallback dialResult
 
-	startRacer := func(ctx context.Context, network, host string, direct bool, ipv6 bool) {
+	startRacer := func(ctx context.Context, network, host string, r resolver.Resolver, ipv6 bool) {
 		result := dialResult{ipv6: ipv6, done: true}
 		defer func() {
 			select {
 			case results <- result:
 			case <-returned:
 				if result.Conn != nil {
-					result.Conn.Close()
+					_ = result.Conn.Close()
 				}
 			}
 		}()
 
-		var ip net.IP
+		var ip netip.Addr
 		if ipv6 {
-			if !direct {
+			if r == nil {
-				ip, result.error = resolver.ResolveIPv6ProxyServerHost(host)
+				ip, result.error = resolver.ResolveIPv6ProxyServerHost(ctx, host)
 			} else {
-				ip, result.error = resolver.ResolveIPv6(host)
+				ip, result.error = resolver.ResolveIPv6WithResolver(ctx, host, r)
 			}
 		} else {
-			if !direct {
+			if r == nil {
-				ip, result.error = resolver.ResolveIPv4ProxyServerHost(host)
+				ip, result.error = resolver.ResolveIPv4ProxyServerHost(ctx, host)
 			} else {
-				ip, result.error = resolver.ResolveIPv4(host)
+				ip, result.error = resolver.ResolveIPv4WithResolver(ctx, host, r)
 			}
 		}
 		if result.error != nil {
+			result.error = fmt.Errorf("dns resolve failed:%w", result.error)
 			return
 		}
 		result.resolved = true
@@ -155,10 +208,13 @@ func dualStackDialContext(ctx context.Context, network, address string, opt *opt
 		result.Conn, result.error = dialContext(ctx, network, ip, port, opt)
 	}
 
-	go startRacer(ctx, network+"4", host, opt.direct, false)
+	go startRacer(ctx, network+"4", host, opt.resolver, false)
-	go startRacer(ctx, network+"6", host, opt.direct, true)
+	go startRacer(ctx, network+"6", host, opt.resolver, true)
 
-	for res := range results {
+	count := 2
+	for i := 0; i < count; i++ {
+		select {
+		case res := <-results:
 			if res.error == nil {
 				return res.Conn, nil
 			}
@@ -178,7 +234,195 @@ func dualStackDialContext(ctx context.Context, network, address string, opt *opt
 					return nil, primary.error
 				}
 			}
+		case <-ctx.Done():
+			err = ctx.Err()
+			break
+		}
 	}
 
-	return nil, errors.New("never touched")
+	if err == nil {
+		err = fmt.Errorf("dual stack dial failed")
+	} else {
+		err = fmt.Errorf("dual stack dial failed:%w", err)
+	}
+	return nil, err
+}
+
+func concurrentDialContext(ctx context.Context, network string, ips []netip.Addr, port string, opt *option) (net.Conn, error) {
+	returned := make(chan struct{})
+	defer close(returned)
+
+	type dialResult struct {
+		ip netip.Addr
+		net.Conn
+		error
+		isPrimary bool
+		done      bool
+	}
+
+	preferCount := atomic.NewInt32(0)
+	results := make(chan dialResult)
+	tcpRacer := func(ctx context.Context, ip netip.Addr) {
+		result := dialResult{ip: ip, done: true}
+
+		defer func() {
+			select {
+			case results <- result:
+			case <-returned:
+				if result.Conn != nil {
+					_ = result.Conn.Close()
+				}
+			}
+		}()
+		if strings.Contains(network, "tcp") {
+			network = "tcp"
+		} else {
+			network = "udp"
+		}
+
+		if ip.Is6() {
+			network += "6"
+			if opt.prefer != 4 {
+				result.isPrimary = true
+			}
+		}
+
+		if ip.Is4() {
+			network += "4"
+			if opt.prefer != 6 {
+				result.isPrimary = true
+			}
+		}
+
+		if result.isPrimary {
+			preferCount.Add(1)
+		}
+
+		result.Conn, result.error = dialContext(ctx, network, ip, port, opt)
+	}
+
+	for _, ip := range ips {
+		go tcpRacer(ctx, ip)
+	}
+
+	connCount := len(ips)
+	var fallback dialResult
+	var primaryError error
+	var finalError error
+	for i := 0; i < connCount; i++ {
+		select {
+		case res := <-results:
+			if res.error == nil {
+				if res.isPrimary {
+					return res.Conn, nil
+				} else {
+					if !fallback.done || fallback.error != nil {
+						fallback = res
+					}
+				}
+			} else {
+				if res.isPrimary {
+					primaryError = res.error
+					preferCount.Add(-1)
+					if preferCount.Load() == 0 && fallback.done && fallback.error == nil {
+						return fallback.Conn, nil
+					}
+				}
+			}
+		case <-ctx.Done():
+			if fallback.done && fallback.error == nil {
+				return fallback.Conn, nil
+			}
+			finalError = ctx.Err()
+			break
+		}
+	}
+
+	if fallback.done && fallback.error == nil {
+		return fallback.Conn, nil
+	}
+
+	if primaryError != nil {
+		return nil, primaryError
+	}
+
+	if fallback.error != nil {
+		return nil, fallback.error
+	}
+
+	if finalError == nil {
+		finalError = fmt.Errorf("all ips %v tcp shake hands failed", ips)
+	} else {
+		finalError = fmt.Errorf("concurrent dial failed:%w", finalError)
+	}
+
+	return nil, finalError
+}
+
+func concurrentSingleDialContext(ctx context.Context, network string, address string, opt *option) (net.Conn, error) {
+	host, port, err := net.SplitHostPort(address)
+	if err != nil {
+		return nil, err
+	}
+
+	var ips []netip.Addr
+	switch network {
+	case "tcp4", "udp4":
+		if opt.resolver == nil {
+			ips, err = resolver.LookupIPv4ProxyServerHost(ctx, host)
+		} else {
+			ips, err = resolver.LookupIPv4WithResolver(ctx, host, opt.resolver)
+		}
+	default:
+		if opt.resolver == nil {
+			ips, err = resolver.LookupIPv6ProxyServerHost(ctx, host)
+		} else {
+			ips, err = resolver.LookupIPv6WithResolver(ctx, host, opt.resolver)
+		}
+	}
+
+	if err != nil {
+		err = fmt.Errorf("dns resolve failed:%w", err)
+		return nil, err
+	}
+
+	return concurrentDialContext(ctx, network, ips, port, opt)
+}
+
+func concurrentDualStackDialContext(ctx context.Context, network, address string, opt *option) (net.Conn, error) {
+	host, port, err := net.SplitHostPort(address)
+	if err != nil {
+		return nil, err
+	}
+
+	var ips []netip.Addr
+	if opt.resolver != nil {
+		ips, err = resolver.LookupIPWithResolver(ctx, host, opt.resolver)
+	} else {
+		ips, err = resolver.LookupIPProxyServerHost(ctx, host)
+	}
+
+	if err != nil {
+		err = fmt.Errorf("dns resolve failed:%w", err)
+		return nil, err
+	}
+
+	return concurrentDialContext(ctx, network, ips, port, opt)
+}
+
+type Dialer struct {
+	Opt option
+}
+
+func (d Dialer) DialContext(ctx context.Context, network, address string) (net.Conn, error) {
+	return DialContext(ctx, network, address, WithOption(d.Opt))
+}
+
+func (d Dialer) ListenPacket(ctx context.Context, network, address string, rAddrPort netip.AddrPort) (net.PacketConn, error) {
+	return ListenPacket(ctx, ParseNetwork(network, rAddrPort.Addr()), address, WithOption(d.Opt))
+}
+
+func NewDialer(options ...Option) Dialer {
+	opt := applyOptions(options...)
+	return Dialer{Opt: *opt}
 }

component/dialer/mark_linux.go

@@ -3,41 +3,35 @@
 package dialer
 
 import (
+	"context"
 	"net"
+	"net/netip"
 	"syscall"
 )
 
-func bindMarkToDialer(mark int, dialer *net.Dialer, _ string, _ net.IP) {
+func bindMarkToDialer(mark int, dialer *net.Dialer, _ string, _ netip.Addr) {
-	dialer.Control = bindMarkToControl(mark, dialer.Control)
+	addControlToDialer(dialer, bindMarkToControl(mark))
 }
 
-func bindMarkToListenConfig(mark int, lc *net.ListenConfig, _, address string) {
+func bindMarkToListenConfig(mark int, lc *net.ListenConfig, _, _ string) {
-	lc.Control = bindMarkToControl(mark, lc.Control)
+	addControlToListenConfig(lc, bindMarkToControl(mark))
 }
 
-func bindMarkToControl(mark int, chain controlFn) controlFn {
+func bindMarkToControl(mark int) controlFn {
-	return func(network, address string, c syscall.RawConn) (err error) {
+	return func(ctx context.Context, 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)
+		addrPort, err := netip.ParseAddrPort(address)
-		if err == nil {
+		if err == nil && !addrPort.Addr().IsGlobalUnicast() {
-			ip := net.ParseIP(ipStr)
-			if ip != nil && !ip.IsGlobalUnicast() {
 			return
 		}
-		}
 
-		return c.Control(func(fd uintptr) {
+		var innerErr error
-			switch network {
+		err = c.Control(func(fd uintptr) {
-			case "tcp4", "udp4":
+			innerErr = syscall.SetsockoptInt(int(fd), syscall.SOL_SOCKET, syscall.SO_MARK, mark)
-				syscall.SetsockoptInt(int(fd), syscall.SOL_SOCKET, syscall.SO_MARK, mark)
-			case "tcp6", "udp6":
-				syscall.SetsockoptInt(int(fd), syscall.SOL_SOCKET, syscall.SO_MARK, mark)
-			}
 		})
+		if innerErr != nil {
+			err = innerErr
+		}
+		return
 	}
 }

component/dialer/mark_nonlinux.go

@@ -4,6 +4,7 @@ package dialer
 
 import (
 	"net"
+	"net/netip"
 	"sync"
 
 	"github.com/Dreamacro/clash/log"
@@ -17,10 +18,10 @@ func printMarkWarn() {
 	})
 }
 
-func bindMarkToDialer(mark int, dialer *net.Dialer, _ string, _ net.IP) {
+func bindMarkToDialer(mark int, dialer *net.Dialer, _ string, _ netip.Addr) {
 	printMarkWarn()
 }
 
-func bindMarkToListenConfig(mark int, lc *net.ListenConfig, _, address string) {
+func bindMarkToListenConfig(mark int, lc *net.ListenConfig, _, _ string) {
 	printMarkWarn()
 }

component/dialer/options.go

@@ -1,6 +1,10 @@
 package dialer
 
-import "go.uber.org/atomic"
+import (
+	"github.com/Dreamacro/clash/component/resolver"
+
+	"go.uber.org/atomic"
+)
 
 var (
 	DefaultOptions     []Option
@@ -12,7 +16,10 @@ type option struct {
 	interfaceName string
 	addrReuse     bool
 	routingMark   int
-	direct        bool
+	network       int
+	prefer        int
+	tfo           bool
+	resolver      resolver.Resolver
 }
 
 type Option func(opt *option)
@@ -35,8 +42,42 @@ func WithRoutingMark(mark int) Option {
 	}
 }
 
-func WithDirect() Option {
+func WithResolver(r resolver.Resolver) Option {
 	return func(opt *option) {
-		opt.direct = true
+		opt.resolver = r
+	}
+}
+
+func WithPreferIPv4() Option {
+	return func(opt *option) {
+		opt.prefer = 4
+	}
+}
+
+func WithPreferIPv6() Option {
+	return func(opt *option) {
+		opt.prefer = 6
+	}
+}
+
+func WithOnlySingleStack(isIPv4 bool) Option {
+	return func(opt *option) {
+		if isIPv4 {
+			opt.network = 4
+		} else {
+			opt.network = 6
+		}
+	}
+}
+
+func WithTFO(tfo bool) Option {
+	return func(opt *option) {
+		opt.tfo = tfo
+	}
+}
+
+func WithOption(o option) Option {
+	return func(opt *option) {
+		*opt = o
 	}
 }

component/dialer/resolver.go

@@ -3,6 +3,7 @@ package dialer
 import (
 	"context"
 	"net"
+	"net/netip"
 )
 
 func init() {
@@ -18,9 +19,9 @@ func resolverDialContext(ctx context.Context, network, address string) (net.Conn
 	interfaceName := DefaultInterface.Load()
 
 	if interfaceName != "" {
-		dstIP := net.ParseIP(address)
+		dstIP, err := netip.ParseAddr(address)
-		if dstIP != nil {
+		if err == nil {
-			bindIfaceToDialer(interfaceName, d, network, dstIP)
+			_ = bindIfaceToDialer(interfaceName, d, network, dstIP)
 		}
 	}