VLESS practice: Use user-sent VLESS UUID's 7th<<8 | 8th bytes as vlessRoute instead

https://github.com/XTLS/Xray-core/pull/5009#issuecomment-3195718690

Replaces 105b306d07

.github/docker/Dockerfile

@@ -1,28 +1,62 @@
-# syntax=docker/dockerfile:1
-FROM --platform=$BUILDPLATFORM golang:alpine AS build
+# syntax=docker/dockerfile:latest
+FROM --platform=$BUILDPLATFORM golang:latest AS build
+
+# Build xray-core
 WORKDIR /src
 COPY . .
 ARG TARGETOS
 ARG TARGETARCH
 RUN GOOS=$TARGETOS GOARCH=$TARGETARCH CGO_ENABLED=0 go build -o xray -trimpath -ldflags "-s -w -buildid=" ./main
-ADD https://github.com/v2fly/geoip/releases/latest/download/geoip.dat /v2fly/geoip.dat
-ADD https://github.com/v2fly/domain-list-community/releases/latest/download/dlc.dat /v2fly/geosite.dat
-ADD https://github.com/Loyalsoldier/v2ray-rules-dat/releases/latest/download/geoip.dat /loyalsoldier/geoip.dat
-ADD https://github.com/Loyalsoldier/v2ray-rules-dat/releases/latest/download/geosite.dat /loyalsoldier/geosite.dat
 
-# chainguard/static contains only tzdata and ca-certificates, can be built with multiarch static binaries.
-FROM --platform=linux/amd64 chainguard/static:latest
-WORKDIR /var/log/xray
-COPY .github/docker/files/config.json /etc/xray/config.json
-COPY --from=build --chmod=755 /src/xray /usr/bin/xray
+# Download geodat into a staging directory
+ADD https://raw.githubusercontent.com/Loyalsoldier/v2ray-rules-dat/release/geoip.dat /tmp/geodat/geoip.dat
+ADD https://raw.githubusercontent.com/Loyalsoldier/v2ray-rules-dat/release/geosite.dat /tmp/geodat/geosite.dat
 
-USER root
-WORKDIR /root
-VOLUME /etc/xray
-ARG TZ=Asia/Shanghai
+RUN mkdir -p /tmp/empty
+
+# Create config files with empty JSON content
+RUN mkdir -p /tmp/usr/local/etc/xray
+RUN cat <<EOF >/tmp/usr/local/etc/xray/00_log.json
+{
+  "log": {
+    "error": "/var/log/xray/error.log",
+    "loglevel": "warning",
+    "access": "none",
+    "dnsLog": false
+  }
+}
+EOF
+RUN echo '{}' >/tmp/usr/local/etc/xray/01_api.json
+RUN echo '{}' >/tmp/usr/local/etc/xray/02_dns.json
+RUN echo '{}' >/tmp/usr/local/etc/xray/03_routing.json
+RUN echo '{}' >/tmp/usr/local/etc/xray/04_policy.json
+RUN echo '{}' >/tmp/usr/local/etc/xray/05_inbounds.json
+RUN echo '{}' >/tmp/usr/local/etc/xray/06_outbounds.json
+RUN echo '{}' >/tmp/usr/local/etc/xray/07_transport.json
+RUN echo '{}' >/tmp/usr/local/etc/xray/08_stats.json
+RUN echo '{}' >/tmp/usr/local/etc/xray/09_reverse.json
+
+# Create log files
+RUN mkdir -p /tmp/var/log/xray && touch \
+  /tmp/var/log/xray/access.log \
+  /tmp/var/log/xray/error.log
+
+# Build finally image
+FROM gcr.io/distroless/static:nonroot
+
+COPY --from=build --chown=0:0 --chmod=755 /src/xray /usr/local/bin/xray
+COPY --from=build --chown=0:0 --chmod=755 /tmp/empty /usr/local/share/xray
+COPY --from=build --chown=0:0 --chmod=644 /tmp/geodat/*.dat /usr/local/share/xray/
+COPY --from=build --chown=0:0 --chmod=755 /tmp/empty /usr/local/etc/xray
+COPY --from=build --chown=0:0 --chmod=644 /tmp/usr/local/etc/xray/*.json /usr/local/etc/xray/
+COPY --from=build --chown=0:0 --chmod=755 /tmp/empty /var/log/xray
+COPY --from=build --chown=65532:65532 --chmod=600 /tmp/var/log/xray/*.log /var/log/xray/
+
+VOLUME /usr/local/etc/xray
+VOLUME /var/log/xray
+
+ARG TZ=Etc/UTC
 ENV TZ=$TZ
-ENTRYPOINT [ "/usr/bin/xray" ]
-CMD [ "-confdir", "/etc/xray/" ]
 
-ARG flavor=v2fly
-COPY --from=build --chmod=644 /$flavor /usr/share/xray
+ENTRYPOINT [ "/usr/local/bin/xray" ]
+CMD [ "-confdir", "/usr/local/etc/xray/" ]

.github/docker/Dockerfile.usa

@@ -0,0 +1,71 @@
+# syntax=docker/dockerfile:latest
+FROM --platform=$BUILDPLATFORM golang:latest AS build
+
+# Build xray-core
+WORKDIR /src
+COPY . .
+ARG TARGETOS
+ARG TARGETARCH
+RUN GOOS=$TARGETOS GOARCH=$TARGETARCH CGO_ENABLED=0 go build -o xray -trimpath -ldflags "-s -w -buildid=" ./main
+
+# Download geodat into a staging directory
+ADD https://raw.githubusercontent.com/Loyalsoldier/v2ray-rules-dat/release/geoip.dat /tmp/geodat/geoip.dat
+ADD https://raw.githubusercontent.com/Loyalsoldier/v2ray-rules-dat/release/geosite.dat /tmp/geodat/geosite.dat
+
+RUN mkdir -p /tmp/empty
+
+# Create config files with empty JSON content
+RUN mkdir -p /tmp/usr/local/etc/xray
+RUN cat <<EOF >/tmp/usr/local/etc/xray/00_log.json
+{
+  "log": {
+    "error": "/var/log/xray/error.log",
+    "loglevel": "warning",
+    "access": "none",
+    "dnsLog": false
+  }
+}
+EOF
+RUN echo '{}' >/tmp/usr/local/etc/xray/01_api.json
+RUN echo '{}' >/tmp/usr/local/etc/xray/02_dns.json
+RUN echo '{}' >/tmp/usr/local/etc/xray/03_routing.json
+RUN echo '{}' >/tmp/usr/local/etc/xray/04_policy.json
+RUN echo '{}' >/tmp/usr/local/etc/xray/05_inbounds.json
+RUN echo '{}' >/tmp/usr/local/etc/xray/06_outbounds.json
+RUN echo '{}' >/tmp/usr/local/etc/xray/07_transport.json
+RUN echo '{}' >/tmp/usr/local/etc/xray/08_stats.json
+RUN echo '{}' >/tmp/usr/local/etc/xray/09_reverse.json
+
+# Create log files
+RUN mkdir -p /tmp/var/log/xray && touch \
+  /tmp/var/log/xray/access.log \
+  /tmp/var/log/xray/error.log
+
+# Build finally image
+# Note on Distroless Base Image and Architecture Support:
+# - The official 'gcr.io/distroless/static' image provided by Google only supports a limited set of architectures for Linux:
+#   - linux/amd64
+#   - linux/arm/v7
+#   - linux/arm64/v8
+#   - linux/ppc64le
+#   - linux/s390x
+# - Upon inspection, the blob contents of the Distroless images across these architectures are nearly identical, with only minor differences in metadata (e.g., 'Architecture' field in the manifest).
+# - Due to this similarity in content, it is feasible to forcibly specify a single platform (e.g., '--platform=linux/amd64') for unsupported architectures, as the core image content remains compatible with statically compiled binaries like Go applications.
+FROM --platform=linux/amd64 gcr.io/distroless/static:nonroot
+
+COPY --from=build --chown=0:0 --chmod=755 /src/xray /usr/local/bin/xray
+COPY --from=build --chown=0:0 --chmod=755 /tmp/empty /usr/local/share/xray
+COPY --from=build --chown=0:0 --chmod=644 /tmp/geodat/*.dat /usr/local/share/xray/
+COPY --from=build --chown=0:0 --chmod=755 /tmp/empty /usr/local/etc/xray
+COPY --from=build --chown=0:0 --chmod=644 /tmp/usr/local/etc/xray/*.json /usr/local/etc/xray/
+COPY --from=build --chown=0:0 --chmod=755 /tmp/empty /var/log/xray
+COPY --from=build --chown=65532:65532 --chmod=600 /tmp/var/log/xray/*.log /var/log/xray/
+
+VOLUME /usr/local/etc/xray
+VOLUME /var/log/xray
+
+ARG TZ=Etc/UTC
+ENV TZ=$TZ
+
+ENTRYPOINT [ "/usr/local/bin/xray" ]
+CMD [ "-confdir", "/usr/local/etc/xray/" ]

.github/docker/files/config.json

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

.github/workflows/docker.yml

@@ -1,76 +1,133 @@
-name: Build docker image
+name: Build and Push Docker Image
 
 on:
   release:
-    types: [published]
-  push:
-    branches:
-      - main
+    types:
+      - published
+      - released
+
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: "Docker image tag:"
+        required: true
+      latest:
+        description: "Set to latest"
+        type: boolean
+        default: false
 
 jobs:
-  build-image:
+  build-and-push:
+    if: (github.event.action != 'published') || (github.event.action == 'published' && github.event.release.prerelease == true)
     runs-on: ubuntu-latest
     permissions:
+      contents: read
       packages: write
+
     steps:
-      - uses: actions/checkout@v4
-      - name: Docker metadata
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: ghcr.io/${{ github.repository_owner }}/xray-core
-          flavor: latest=auto
-          tags: |
-            type=sha
-            type=ref,event=branch
-            type=ref,event=pr
-            type=semver,pattern={{version}}
-      - name: Docker metadata Loyalsoldier flavor
-        id: loyalsoldier
-        uses: docker/metadata-action@v5
-        with:
-          images: ghcr.io/${{ github.repository_owner }}/xray-core
-          flavor: |
-            latest=auto
-            suffix=-ls,onlatest=true
-          tags: |
-            type=sha
-            type=ref,event=branch
-            type=ref,event=pr
-            type=semver,pattern={{version}}
+      - name: Set repository and image name to lowercase
+        env:
+          IMAGE_NAME: "${{ github.repository }}"
+        run: |
+          echo "IMAGE_NAME=${IMAGE_NAME,,}" >>${GITHUB_ENV}
+          echo "FULL_IMAGE_NAME=ghcr.io/${IMAGE_NAME,,}" >>${GITHUB_ENV}
+
+      - name: Validate and extract tag
+        run: |
+          SOURCE_TAG="${{ github.event.inputs.tag }}"
+          if [[ -z "$SOURCE_TAG" ]]; then
+            SOURCE_TAG="${{ github.ref_name }}"
+          fi
+          if [[ -z "$SOURCE_TAG" ]]; then
+            SOURCE_TAG="${{ github.event.release.tag_name }}"
+          fi
+
+          if [[ -z "$SOURCE_TAG" ]]; then
+            echo "Error: Could not determine a valid tag source. Input tag and context tag (github.ref_name) are both empty."
+            exit 1
+          fi
+
+          if [[ "$SOURCE_TAG" =~ ^v[0-9]+\.[0-9] ]]; then
+            IMAGE_TAG="${SOURCE_TAG#v}"
+          else
+            IMAGE_TAG="$SOURCE_TAG"
+          fi
+
+          echo "Docker image tag: '$IMAGE_TAG'."
+          echo "IMAGE_TAG=$IMAGE_TAG" >>${GITHUB_ENV}
+
+          LATEST=false
+          if [[ "${{ github.event_name }}" == "release" && "${{ github.event.release.prerelease }}" == "false" ]] || [[ "${{ github.event_name }}" == "workflow_dispatch" && "${{ github.event.inputs.latest }}" == "true" ]]; then
+            LATEST=true
+          fi
+
+          echo "Latest: '$LATEST'."
+          echo "LATEST=$LATEST" >>${GITHUB_ENV}
+
+      - name: Checkout code
+        uses: actions/checkout@v5
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v3
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-      - name: Build and push
+
+      - name: Build Docker image (main architectures)
+        id: build_main_arches
         uses: docker/build-push-action@v6
         with:
           context: .
+          file: .github/docker/Dockerfile
           platforms: |
             linux/amd64
-            linux/arm64
-            linux/loong64
-            linux/riscv64
+            linux/arm/v7
+            linux/arm64/v8
+            linux/ppc64le
+            linux/s390x
           provenance: false
-          file: .github/docker/Dockerfile
-          push: true
-          tags: ${{ steps.meta.outputs.tags }}
-      - name: Build and push Loyalsoldier flavor
+          outputs: type=image,name=${{ env.FULL_IMAGE_NAME }},push-by-digest=true,name-canonical=true,push=true
+
+      - name: Build Docker image (additional architectures)
+        id: build_additional_arches
         uses: docker/build-push-action@v6
         with:
           context: .
+          file: .github/docker/Dockerfile.usa
           platforms: |
-            linux/amd64
-            linux/arm64
-            linux/loong64
+            linux/386
+            linux/arm/v6
             linux/riscv64
+            linux/loong64
           provenance: false
-          file: .github/docker/Dockerfile
-          build-args: flavor=loyalsoldier
-          push: true
-          tags: |
-            ${{ steps.loyalsoldier.outputs.tags }}
+          outputs: type=image,name=${{ env.FULL_IMAGE_NAME }},push-by-digest=true,name-canonical=true,push=true
+
+      - name: Create manifest list and push
+        run: |
+          echo "Creating multi-arch manifest with tag: '${{ env.FULL_IMAGE_NAME }}:${{ env.IMAGE_TAG }}'."
+          docker buildx imagetools create \
+            --tag ${{ env.FULL_IMAGE_NAME }}:${{ env.IMAGE_TAG }} \
+            ${{ env.FULL_IMAGE_NAME }}@${{ steps.build_main_arches.outputs.digest }} \
+            ${{ env.FULL_IMAGE_NAME }}@${{ steps.build_additional_arches.outputs.digest }}
+
+          if [[ "${{ env.LATEST }}" == "true" ]]; then
+            echo "Adding 'latest' tag to manifest: '${{ env.FULL_IMAGE_NAME }}:latest'."
+            docker buildx imagetools create \
+            --tag ${{ env.FULL_IMAGE_NAME }}:latest \
+            ${{ env.FULL_IMAGE_NAME }}:${{ env.IMAGE_TAG }}
+          fi
+
+      - name: Inspect image
+        run: |
+          docker buildx imagetools inspect ${{ env.FULL_IMAGE_NAME }}:${{ env.IMAGE_TAG }}
+
+          if [[ "${{ env.LATEST }}" == "true" ]]; then
+            docker buildx imagetools inspect ${{ env.FULL_IMAGE_NAME }}:latest
+          fi

.github/workflows/release-win7.yml

@@ -0,0 +1,148 @@
+name: Build and Release for Windows 7
+
+on:
+  workflow_dispatch:
+  release:
+    types: [published]
+  push:
+  pull_request:
+    types: [opened, synchronize, reopened]
+
+jobs:
+  check-assets:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Restore Geodat Cache
+        uses: actions/cache/restore@v4
+        with:
+          path: resources
+          key: xray-geodat-
+
+      - name: Check Assets Existence
+        id: check-assets
+        run: |
+          [ -d 'resources' ] || mkdir resources
+          LIST=('geoip.dat' 'geosite.dat')
+          for FILE_NAME in "${LIST[@]}"
+          do
+            echo -e "Checking ${FILE_NAME}..."
+            if [ -s "./resources/${FILE_NAME}" ]; then
+              echo -e "${FILE_NAME} exists."
+            else
+              echo -e "${FILE_NAME} does not exist."
+              echo "missing=true" >> $GITHUB_OUTPUT
+              break
+            fi
+          done
+
+      - name: Sleep for 90 seconds if Assets Missing
+        if: steps.check-assets.outputs.missing == 'true'
+        run: sleep 90
+
+  build:
+    needs: check-assets
+    permissions:
+      contents: write
+    strategy:
+      matrix:
+        include:
+          # BEGIN Windows 7
+          - goos: windows
+            goarch: amd64
+            assetname: win7-64
+          - goos: windows
+            goarch: 386
+            assetname: win7-32
+          # END Windows 7
+      fail-fast: false
+
+    runs-on: ubuntu-latest
+    env:
+      GOOS: ${{ matrix.goos}}
+      GOARCH: ${{ matrix.goarch }}
+      CGO_ENABLED: 0
+    steps:
+      - name: Checkout codebase
+        uses: actions/checkout@v5
+
+      - name: Show workflow information
+        run: |
+          _NAME=${{ matrix.assetname }}
+          echo "GOOS: ${{ matrix.goos }}, GOARCH: ${{ matrix.goarch }}, RELEASE_NAME: $_NAME"
+          echo "ASSET_NAME=$_NAME" >> $GITHUB_ENV
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+          check-latest: true
+
+      - name: Setup patched builder
+        run: |
+          GOSDK=$(go env GOROOT)
+          rm -r $GOSDK/*
+          cd $GOSDK
+          curl -O -L -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" https://github.com/XTLS/go-win7/releases/latest/download/go-for-win7-linux-amd64.zip
+          unzip ./go-for-win7-linux-amd64.zip -d $GOSDK
+          rm ./go-for-win7-linux-amd64.zip
+
+      - name: Get project dependencies
+        run: go mod download
+
+      - name: Build Xray
+        run: |
+          mkdir -p build_assets
+          COMMID=$(git describe --always --dirty)
+          echo 'Building Xray for Windows 7...'
+          go build -o build_assets/xray.exe -trimpath -buildvcs=false -gcflags="all=-l=4" -ldflags="-X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
+          echo 'CreateObject("Wscript.Shell").Run "xray.exe -config config.json",0' > build_assets/xray_no_window.vbs
+          echo 'Start-Process -FilePath ".\xray.exe" -ArgumentList "-config .\config.json" -WindowStyle Hidden' > build_assets/xray_no_window.ps1
+          # The line below is for without running conhost.exe version. Commented for not being used. Provided for reference.
+          # go build -o build_assets/wxray.exe -trimpath -buildvcs=false -gcflags="all=-l=4" -ldflags="-H windowsgui -X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
+
+      - name: Restore Geodat Cache
+        uses: actions/cache/restore@v4
+        with:
+          path: resources
+          key: xray-geodat-
+
+      - name: Copy README.md & LICENSE
+        run: |
+          mv -f resources/* build_assets
+          cp ${GITHUB_WORKSPACE}/README.md ./build_assets/README.md
+          cp ${GITHUB_WORKSPACE}/LICENSE ./build_assets/LICENSE
+
+      - name: Create ZIP archive
+        if: github.event_name == 'release'
+        shell: bash
+        run: |
+          pushd build_assets || exit 1
+          touch -mt $(date +%Y01010000) *
+          zip -9vr ../Xray-${{ env.ASSET_NAME }}.zip .
+          popd || exit 1
+          FILE=./Xray-${{ env.ASSET_NAME }}.zip
+          DGST=$FILE.dgst
+          for METHOD in {"md5","sha1","sha256","sha512"}
+          do
+            openssl dgst -$METHOD $FILE | sed 's/([^)]*)//g' >>$DGST
+          done
+
+      - name: Change the name
+        run: |
+          mv build_assets Xray-${{ env.ASSET_NAME }}
+
+      - name: Upload files to Artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: Xray-${{ env.ASSET_NAME }}
+          path: |
+            ./Xray-${{ env.ASSET_NAME }}/*
+
+      - name: Upload binaries to release
+        uses: svenstaro/upload-release-action@v2
+        if: github.event_name == 'release'
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          file: ./Xray-${{ env.ASSET_NAME }}.zip*
+          tag: ${{ github.ref }}
+          file_glob: true

.github/workflows/release.yml

@@ -1,76 +1,61 @@
 name: Build and Release
 
-# NOTE: This Github Actions file depends on the Makefile.
-#       Building the correct package requires the correct binaries generated by the Makefile. To 
-#       ensure the correct output, the Makefile must accept the appropriate input and compile the 
-#       correct file with the correct name. If you need to modify this file, please ensure it won't 
-#       disrupt the Makefile.
-
 on:
   workflow_dispatch:
   release:
     types: [published]
   push:
-    branches:
-      - main
-    paths:
-      - "**/*.go"
-      - "go.mod"
-      - "go.sum"
-      - ".github/workflows/release.yml"
   pull_request:
     types: [opened, synchronize, reopened]
-    paths:
-      - "**/*.go"
-      - "go.mod"
-      - "go.sum"
-      - ".github/workflows/release.yml"
+
 jobs:
-  prepare:
+  check-assets:
     runs-on: ubuntu-latest
     steps:
-      - name: Restore Cache
+      - name: Restore Geodat Cache
         uses: actions/cache/restore@v4
         with:
           path: resources
           key: xray-geodat-
 
-      - name: Update Geodat
-        id: update
-        uses: nick-fields/retry@v3
-        with:
-          timeout_minutes: 60
-          retry_wait_seconds: 60
-          max_attempts: 60
-          command: |
-            [ -d 'resources' ] || mkdir resources
-            LIST=('geoip geoip geoip' 'domain-list-community dlc geosite')
-            for i in "${LIST[@]}"
-            do
-              INFO=($(echo $i | awk 'BEGIN{FS=" ";OFS=" "} {print $1,$2,$3}'))
-              FILE_NAME="${INFO[2]}.dat"
-              echo -e "Verifying HASH key..."
-              HASH="$(curl -sL "https://raw.githubusercontent.com/v2fly/${INFO[0]}/release/${INFO[1]}.dat.sha256sum" | awk -F ' ' '{print $1}')"
-              if [ -s "./resources/${FILE_NAME}" ] && [ "$(sha256sum "./resources/${FILE_NAME}" | awk -F ' ' '{print $1}')" == "${HASH}" ]; then
-                  continue
-              else
-                  echo -e "Downloading https://raw.githubusercontent.com/v2fly/${INFO[0]}/release/${INFO[1]}.dat..."
-                  curl -L "https://raw.githubusercontent.com/v2fly/${INFO[0]}/release/${INFO[1]}.dat" -o ./resources/${FILE_NAME}
-                  echo -e "Verifying HASH key..."
-                  [ "$(sha256sum "./resources/${FILE_NAME}" | awk -F ' ' '{print $1}')" == "${HASH}" ] || { echo -e "The HASH key of ${FILE_NAME} does not match cloud one."; exit 1; }
-                  echo "unhit=true" >> $GITHUB_OUTPUT
-              fi
-            done
+      - name: Check Assets Existence
+        id: check-assets
+        run: |
+          [ -d 'resources' ] || mkdir resources
+          LIST=('geoip.dat' 'geosite.dat')
+          for FILE_NAME in "${LIST[@]}"
+          do
+            echo -e "Checking ${FILE_NAME}..."
+            if [ -s "./resources/${FILE_NAME}" ]; then
+              echo -e "${FILE_NAME} exists."
+            else
+              echo -e "${FILE_NAME} does not exist."
+              echo "missing=true" >> $GITHUB_OUTPUT
+              break
+            fi
+          done
 
-      - name: Save Cache
-        uses: actions/cache/save@v4
-        if: ${{ steps.update.outputs.unhit }}
+      - name: Trigger Asset Update Workflow if Assets Missing
+        if: steps.check-assets.outputs.missing == 'true'
+        uses: actions/github-script@v7
         with:
-          path: resources
-          key: xray-geodat-${{ github.sha }}-${{ github.run_number }}
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            const { owner, repo } = context.repo;
+            await github.rest.actions.createWorkflowDispatch({
+              owner,
+              repo,
+              workflow_id: 'scheduled-assets-update.yml',
+              ref: context.ref
+            });
+            console.log('Triggered scheduled-assets-update.yml due to missing assets on branch:', context.ref);
+
+      - name: Sleep for 90 seconds if Assets Missing
+        if: steps.check-assets.outputs.missing == 'true'
+        run: sleep 90
 
   build:
-    needs: prepare
+    needs: check-assets
     permissions:
       contents: write
     strategy:
@@ -78,9 +63,7 @@ jobs:
         # Include amd64 on all platforms.
         goos: [windows, freebsd, openbsd, linux, darwin]
         goarch: [amd64, 386]
-        gotoolchain: [""]
         patch-assetname: [""]
-
         exclude:
           # Exclude i386 on darwin
           - goarch: 386
@@ -105,6 +88,11 @@ jobs:
           - goos: android
             goarch: arm64
           # END Android ARM 8
+          # BEGIN Android AMD64
+          - goos: android
+            goarch: amd64
+            patch-assetname: android-amd64
+          # END Android AMD64
           # Windows ARM
           - goos: windows
             goarch: arm64
@@ -155,16 +143,6 @@ jobs:
             goarch: arm
             goarm: 7
           # END OPENBSD ARM
-          # BEGIN Windows 7
-          - goos: windows
-            goarch: amd64
-            gotoolchain: 1.21.4
-            patch-assetname: win7-64
-          - goos: windows
-            goarch: 386
-            gotoolchain: 1.21.4
-            patch-assetname: win7-32
-          # END Windows 7
       fail-fast: false
 
     runs-on: ubuntu-latest
@@ -175,7 +153,20 @@ jobs:
       CGO_ENABLED: 0
     steps:
       - name: Checkout codebase
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
+
+      - name: Set up NDK
+        if: matrix.goos == 'android'
+        run: |
+          wget -qO android-ndk.zip https://dl.google.com/android/repository/android-ndk-r28b-linux.zip
+          unzip android-ndk.zip
+          rm android-ndk.zip
+          declare -A arches=(
+            ["amd64"]="x86_64-linux-android24-clang"
+            ["arm64"]="aarch64-linux-android24-clang"
+          )
+          echo CC="$(realpath android-ndk-*/toolchains/llvm/prebuilt/linux-x86_64/bin)/${arches[${{ matrix.goarch }}]}" >> $GITHUB_ENV
+          echo CGO_ENABLED=1 >> $GITHUB_ENV
 
       - name: Show workflow information
         run: |
@@ -187,19 +178,35 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: ${{ matrix.gotoolchain || '1.23' }}
+          go-version-file: go.mod
           check-latest: true
 
       - name: Get project dependencies
         run: go mod download
-      
+
       - name: Build Xray
         run: |
           mkdir -p build_assets
-          make
-          find . -maxdepth 1 -type f -regex './\(wxray\|xray\|xray_softfloat\)\(\|.exe\)' -exec mv {} ./build_assets/ \;
+          COMMID=$(git describe --always --dirty)
+          if [[ ${GOOS} == 'windows' ]]; then
+            echo 'Building Xray for Windows...'
+            go build -o build_assets/xray.exe -trimpath -buildvcs=false -gcflags="all=-l=4" -ldflags="-X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
+            echo 'CreateObject("Wscript.Shell").Run "xray.exe -config config.json",0' > build_assets/xray_no_window.vbs
+            echo 'Start-Process -FilePath ".\xray.exe" -ArgumentList "-config .\config.json" -WindowStyle Hidden' > build_assets/xray_no_window.ps1
+            # The line below is for without running conhost.exe version. Commented for not being used. Provided for reference.
+            # go build -o build_assets/wxray.exe -trimpath -buildvcs=false -gcflags="all=-l=4" -ldflags="-H windowsgui -X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
+          else
+            echo 'Building Xray...'
+            if [[ ${GOARCH} == 'mips' || ${GOARCH} == 'mipsle' ]]; then
+              go build -o build_assets/xray -trimpath -buildvcs=false -gcflags="-l=4" -ldflags="-X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
+              echo 'Building soft-float Xray for MIPS/MIPSLE 32-bit...'
+              GOMIPS=softfloat go build -o build_assets/xray_softfloat -trimpath -buildvcs=false -gcflags="-l=4" -ldflags="-X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
+            else
+              go build -o build_assets/xray -trimpath -buildvcs=false -gcflags="all=-l=4" -ldflags="-X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
+            fi
+          fi
 
-      - name: Restore Cache
+      - name: Restore Geodat Cache
         uses: actions/cache/restore@v4
         with:
           path: resources

.github/workflows/scheduled-assets-update.yml

@@ -0,0 +1,65 @@
+name: Scheduled assets update
+
+# NOTE: This Github Actions is required by other actions, for preparing other packaging assets in a
+#       routine manner, for example: GeoIP/GeoSite.
+#       Currently updating:
+#       - Geodat (GeoIP/Geosite)
+
+on:
+  workflow_dispatch:
+  schedule:
+    # Update GeoData on every day (22:30 UTC)
+    - cron: "30 22 * * *"
+  push:
+    # Prevent triggering update request storm
+    paths:
+      - ".github/workflows/scheduled-assets-update.yml"
+  pull_request:
+    # Prevent triggering update request storm
+    paths:
+      - ".github/workflows/scheduled-assets-update.yml"
+
+jobs:
+  geodat:
+    if: github.event.schedule == '30 22 * * *' || github.event_name == 'push'|| github.event_name == 'pull_request' || github.event_name == 'workflow_dispatch'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Restore Geodat Cache
+        uses: actions/cache/restore@v4
+        with:
+          path: resources
+          key: xray-geodat-
+
+      - name: Update Geodat
+        id: update
+        uses: nick-fields/retry@v3
+        with:
+          timeout_minutes: 60
+          retry_wait_seconds: 60
+          max_attempts: 60
+          command: |
+            [ -d 'resources' ] || mkdir resources
+            LIST=('Loyalsoldier v2ray-rules-dat geoip geoip' 'Loyalsoldier v2ray-rules-dat geosite geosite')
+            for i in "${LIST[@]}"
+            do
+              INFO=($(echo $i | awk 'BEGIN{FS=" ";OFS=" "} {print $1,$2,$3,$4}'))
+              FILE_NAME="${INFO[3]}.dat"
+              echo -e "Verifying HASH key..."
+              HASH="$(curl -sL -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" "https://raw.githubusercontent.com/${INFO[0]}/${INFO[1]}/release/${INFO[2]}.dat.sha256sum" | awk -F ' ' '{print $1}')"
+              if [ -s "./resources/${FILE_NAME}" ] && [ "$(sha256sum "./resources/${FILE_NAME}" | awk -F ' ' '{print $1}')" == "${HASH}" ]; then
+                  continue
+              else
+                  echo -e "Downloading https://raw.githubusercontent.com/${INFO[0]}/${INFO[1]}/release/${INFO[2]}.dat..."
+                  curl -L -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" "https://raw.githubusercontent.com/${INFO[0]}/${INFO[1]}/release/${INFO[2]}.dat" -o ./resources/${FILE_NAME}
+                  echo -e "Verifying HASH key..."
+                  [ "$(sha256sum "./resources/${FILE_NAME}" | awk -F ' ' '{print $1}')" == "${HASH}" ] || { echo -e "The HASH key of ${FILE_NAME} does not match cloud one."; exit 1; }
+                  echo "unhit=true" >> $GITHUB_OUTPUT
+              fi
+            done
+
+      - name: Save Geodat Cache
+        uses: actions/cache/save@v4
+        if: ${{ steps.update.outputs.unhit }}
+        with:
+          path: resources
+          key: xray-geodat-${{ github.sha }}-${{ github.run_number }}

.github/workflows/test.yml

@@ -2,23 +2,40 @@ name: Test
 
 on:
   push:
-    branches:
-      - main
-    paths:
-      - "**/*.go"
-      - "go.mod"
-      - "go.sum"
-      - ".github/workflows/*.yml"
   pull_request:
     types: [opened, synchronize, reopened]
-    paths:
-      - "**/*.go"
-      - "go.mod"
-      - "go.sum"
-      - ".github/workflows/*.yml"
 
 jobs:
+  check-assets:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Restore Geodat Cache
+        uses: actions/cache/restore@v4
+        with:
+          path: resources
+          key: xray-geodat-
+      - name: Check Assets Existence
+        id: check-assets
+        run: |
+          [ -d 'resources' ] || mkdir resources
+          LIST=('geoip.dat' 'geosite.dat')
+          for FILE_NAME in "${LIST[@]}"
+          do
+            echo -e "Checking ${FILE_NAME}..."
+            if [ -s "./resources/${FILE_NAME}" ]; then
+              echo -e "${FILE_NAME} exists."
+            else
+              echo -e "${FILE_NAME} does not exist."
+              echo "missing=true" >> $GITHUB_OUTPUT
+              break
+            fi
+          done
+      - name: Sleep for 90 seconds if Assets Missing
+        if: steps.check-assets.outputs.missing == 'true'
+        run: sleep 90
+
   test:
+    needs: check-assets
     permissions:
       contents: read
     runs-on: ${{ matrix.os }}
@@ -28,13 +45,13 @@ jobs:
         os: [windows-latest, ubuntu-latest, macos-latest]
     steps:
       - name: Checkout codebase
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: '1.23'
+          go-version-file: go.mod
           check-latest: true
-      - name: Restore Cache
+      - name: Restore Geodat Cache
         uses: actions/cache/restore@v4
         with:
           path: resources

.gitignore

@@ -14,10 +14,18 @@
 # Dependency directories (remove the comment below to include it)
 # vendor/
 
+# macOS specific files
 *.DS_Store
-.idea
+
+# IDE specific files
+.idea/
+.vscode/
+
+# Archive files
 *.zip
 *.tar.gz
+
+# Binaries
 xray
 xray_softfloat
 mockgen
@@ -26,8 +34,13 @@ vprotogen
 errorgen
 !common/errors/errorgen/
 *.dat
-.vscode
+
+# Build assets
 /build_assets
 
 # Output from dlv test
 **/debug.*
+
+# Certificates
+*.crt
+*.key

Makefile

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

README.md

@@ -6,9 +6,13 @@
 
 ## Donation & NFTs
 
+### [Collect a Project X NFT to support the development of Project X!](https://opensea.io/item/ethereum/0x5ee362866001613093361eb8569d59c4141b76d1/1)
+
+[<img alt="Project X NFT" width="150px" src="https://raw2.seadn.io/ethereum/0x5ee362866001613093361eb8569d59c4141b76d1/7fa9ce900fb39b44226348db330e32/8b7fa9ce900fb39b44226348db330e32.svg" />](https://opensea.io/item/ethereum/0x5ee362866001613093361eb8569d59c4141b76d1/1)
+
 - **ETH/USDT/USDC: `0xDc3Fe44F0f25D13CACb1C4896CD0D321df3146Ee`**
-- **Project X NFT: [Announcement of NFTs by Project X](https://github.com/XTLS/Xray-core/discussions/3633)**
-- **REALITY NFT: [XHTTP: Beyond REALITY](https://github.com/XTLS/Xray-core/discussions/4113)**
+- **REALITY NFT: https://opensea.io/item/ethereum/0x5ee362866001613093361eb8569d59c4141b76d1/2**
+- **Related links: https://opensea.io/collection/xtls, [Announcement of NFTs by Project X](https://github.com/XTLS/Xray-core/discussions/3633), [XHTTP: Beyond REALITY](https://github.com/XTLS/Xray-core/discussions/4113)**
 
 ## License
 
@@ -24,7 +28,9 @@
 
 [Project X Channel](https://t.me/projectXtls)
 
-[Project VLESS](https://t.me/projectVless) (non-Chinese)
+[Project VLESS](https://t.me/projectVless) (Русский)
+
+[Project XHTTP](https://t.me/projectXhttp) (Persian)
 
 ## Installation
 
@@ -36,12 +42,13 @@
   - [teddysun/xray](https://hub.docker.com/r/teddysun/xray)
   - [wulabing/xray_docker](https://github.com/wulabing/xray_docker)
 - Web Panel - **WARNING: Please DO NOT USE plain HTTP panels like 3X-UI**, as they are believed to be bribed by Iran GFW for supporting plain HTTP by default and refused to change (https://github.com/XTLS/Xray-core/pull/3884#issuecomment-2439595331), which has already put many users' data security in danger in the past few years. **If you are already using 3X-UI, please switch to the following panels, which are verified to support HTTPS and SSH port forwarding only:**
+  - [Remnawave](https://github.com/remnawave/panel)
   - [Marzban](https://github.com/Gozargah/Marzban)
   - [Xray-UI](https://github.com/qist/xray-ui)
   - [Hiddify](https://github.com/hiddify/Hiddify-Manager)
 - One Click
   - [Xray-REALITY](https://github.com/zxcvos/Xray-script), [xray-reality](https://github.com/sajjaddg/xray-reality), [reality-ezpz](https://github.com/aleskxyz/reality-ezpz)
-  - [Xray_bash_onekey](https://github.com/hello-yunshu/Xray_bash_onekey), [XTool](https://github.com/LordPenguin666/XTool)
+  - [Xray_bash_onekey](https://github.com/hello-yunshu/Xray_bash_onekey), [XTool](https://github.com/LordPenguin666/XTool), [VPainLess](https://github.com/vpainless/vpainless)
   - [v2ray-agent](https://github.com/mack-a/v2ray-agent), [Xray_onekey](https://github.com/wulabing/Xray_onekey), [ProxySU](https://github.com/proxysu/ProxySU)
 - Magisk
   - [Xray4Magisk](https://github.com/Asterisk4Magisk/Xray4Magisk)
@@ -72,34 +79,49 @@
   - [PassWall](https://github.com/xiaorouji/openwrt-passwall), [PassWall 2](https://github.com/xiaorouji/openwrt-passwall2)
   - [ShadowSocksR Plus+](https://github.com/fw876/helloworld)
   - [luci-app-xray](https://github.com/yichya/luci-app-xray) ([openwrt-xray](https://github.com/yichya/openwrt-xray))
+- Asuswrt-Merlin
+  - [XRAYUI](https://github.com/DanielLavrushin/asuswrt-merlin-xrayui)
 - Windows
   - [v2rayN](https://github.com/2dust/v2rayN)
   - [Furious](https://github.com/LorenEteval/Furious)
   - [Invisible Man - Xray](https://github.com/InvisibleManVPN/InvisibleMan-XRayClient)
+  - [AnyPortal](https://github.com/AnyPortal/AnyPortal)
 - Android
   - [v2rayNG](https://github.com/2dust/v2rayNG)
   - [X-flutter](https://github.com/XTLS/X-flutter)
   - [SaeedDev94/Xray](https://github.com/SaeedDev94/Xray)
-- iOS & macOS arm64
-  - [FoXray](https://apps.apple.com/app/foxray/id6448898396)
+  - [SimpleXray](https://github.com/lhear/SimpleXray)
+  - [AnyPortal](https://github.com/AnyPortal/AnyPortal)
+- iOS & macOS arm64 & tvOS
+  - [Happ](https://apps.apple.com/app/happ-proxy-utility/id6504287215) ([tvOS](https://apps.apple.com/us/app/happ-proxy-utility-for-tv/id6748297274))
   - [Streisand](https://apps.apple.com/app/streisand/id6450534064)
+  - [OneXray](https://github.com/OneXray/OneXray)
 - macOS arm64 & x64
+  - [Happ](https://apps.apple.com/app/happ-proxy-utility/id6504287215)
   - [V2rayU](https://github.com/yanue/V2rayU)
   - [V2RayXS](https://github.com/tzmax/V2RayXS)
   - [Furious](https://github.com/LorenEteval/Furious)
-  - [FoXray](https://apps.apple.com/app/foxray/id6448898396)
+  - [OneXray](https://github.com/OneXray/OneXray)
+  - [GoXRay](https://github.com/goxray/desktop)
+  - [AnyPortal](https://github.com/AnyPortal/AnyPortal)
 - Linux
   - [v2rayA](https://github.com/v2rayA/v2rayA)
   - [Furious](https://github.com/LorenEteval/Furious)
+  - [GorzRay](https://github.com/ketetefid/GorzRay)
+  - [GoXRay](https://github.com/goxray/desktop)
+  - [AnyPortal](https://github.com/AnyPortal/AnyPortal)
 
 ## Others that support VLESS, XTLS, REALITY, XUDP, PLUX...
 
-- iOS & macOS arm64
+- iOS & macOS arm64 & tvOS
   - [Shadowrocket](https://apps.apple.com/app/shadowrocket/id932747118)
+  - [Loon](https://apps.apple.com/us/app/loon/id1373567447)
 - Xray Tools
   - [xray-knife](https://github.com/lilendian0x00/xray-knife)
+  - [xray-checker](https://github.com/kutovoys/xray-checker)
 - Xray Wrapper
   - [XTLS/libXray](https://github.com/XTLS/libXray)
+  - [xtls-sdk](https://github.com/remnawave/xtls-sdk)
   - [xtlsapi](https://github.com/hiddify/xtlsapi)
   - [AndroidLibXrayLite](https://github.com/2dust/AndroidLibXrayLite)
   - [Xray-core-python](https://github.com/LorenEteval/Xray-core-python)
@@ -107,39 +129,49 @@
 - [XrayR](https://github.com/XrayR-project/XrayR)
   - [XrayR-release](https://github.com/XrayR-project/XrayR-release)
   - [XrayR-V2Board](https://github.com/missuo/XrayR-V2Board)
-- [Clash.Meta](https://github.com/MetaCubeX/Clash.Meta)
-  - [clashN](https://github.com/2dust/clashN)
-  - [Clash Meta for Android](https://github.com/MetaCubeX/ClashMetaForAndroid)
-- [sing-box](https://github.com/SagerNet/sing-box)
+- Cores
+  - [Amnezia VPN](https://github.com/amnezia-vpn)
+  - [mihomo](https://github.com/MetaCubeX/mihomo)
+  - [sing-box](https://github.com/SagerNet/sing-box)
 
 ## Contributing
 
 [Code of Conduct](https://github.com/XTLS/Xray-core/blob/main/CODE_OF_CONDUCT.md)
 
+[![Ask DeepWiki](https://deepwiki.com/badge.svg)](https://deepwiki.com/XTLS/Xray-core)
+
 ## Credits
 
 - [Xray-core v1.0.0](https://github.com/XTLS/Xray-core/releases/tag/v1.0.0) was forked from [v2fly-core 9a03cc5](https://github.com/v2fly/v2ray-core/commit/9a03cc5c98d04cc28320fcee26dbc236b3291256), and we have made & accumulated a huge number of enhancements over time, check [the release notes for each version](https://github.com/XTLS/Xray-core/releases).
 - For third-party projects used in [Xray-core](https://github.com/XTLS/Xray-core), check your local or [the latest go.mod](https://github.com/XTLS/Xray-core/blob/main/go.mod).
 
-## Compilation
+## One-line Compilation
 
 ### Windows (PowerShell)
 
 ```powershell
 $env:CGO_ENABLED=0
-go build -o xray.exe -trimpath -ldflags "-s -w -buildid=" ./main
+go build -o xray.exe -trimpath -buildvcs=false -ldflags="-s -w -buildid=" -v ./main
 ```
 
 ### Linux / macOS
 
 ```bash
-CGO_ENABLED=0 go build -o xray -trimpath -ldflags "-s -w -buildid=" ./main
+CGO_ENABLED=0 go build -o xray -trimpath -buildvcs=false -ldflags="-s -w -buildid=" -v ./main
 ```
 
 ### Reproducible Releases
 
+Make sure that you are using the same Go version, and remember to set the git commit id (7 bytes):
+
 ```bash
-make
+CGO_ENABLED=0 go build -o xray -trimpath -buildvcs=false -gcflags="all=-l=4" -ldflags="-X github.com/xtls/xray-core/core.build=REPLACE -s -w -buildid=" -v ./main
+```
+
+If you are compiling a 32-bit MIPS/MIPSLE target, use this command instead:
+
+```bash
+CGO_ENABLED=0 go build -o xray -trimpath -buildvcs=false -gcflags="-l=4" -ldflags="-X github.com/xtls/xray-core/core.build=REPLACE -s -w -buildid=" -v ./main
 ```
 
 ## Stargazers over time

app/commander/outbound.go

@@ -8,6 +8,7 @@ import (
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/net/cnc"
+	"github.com/xtls/xray-core/common/serial"
 	"github.com/xtls/xray-core/common/signal/done"
 	"github.com/xtls/xray-core/transport"
 )
@@ -108,3 +109,13 @@ func (co *Outbound) Close() error {
 	co.closed = true
 	return co.listener.Close()
 }
+
+// SenderSettings implements outbound.Handler.
+func (co *Outbound) SenderSettings() *serial.TypedMessage {
+	return nil
+}
+
+// ProxySettings implements outbound.Handler.
+func (co *Outbound) ProxySettings() *serial.TypedMessage {
+	return nil
+}

app/dispatcher/default.go

@@ -33,23 +33,21 @@ type cachedReader struct {
 	cache  buf.MultiBuffer
 }
 
-func (r *cachedReader) Cache(b *buf.Buffer) {
-	mb, _ := r.reader.ReadMultiBufferTimeout(time.Millisecond * 100)
+func (r *cachedReader) Cache(b *buf.Buffer, deadline time.Duration) error {
+	mb, err := r.reader.ReadMultiBufferTimeout(deadline)
+	if err != nil {
+		return err
+	}
 	r.Lock()
 	if !mb.IsEmpty() {
 		r.cache, _ = buf.MergeMulti(r.cache, mb)
 	}
-	cacheLen := r.cache.Len()
-	if cacheLen <= b.Cap() {
-		b.Clear()
-	} else {
-		b.Release()
-		*b = *buf.NewWithSize(cacheLen)
-	}
-	rawBytes := b.Extend(cacheLen)
+	b.Clear()
+	rawBytes := b.Extend(min(r.cache.Len(), b.Cap()))
 	n := r.cache.Copy(rawBytes)
 	b.Resize(0, int32(n))
 	r.Unlock()
+	return nil
 }
 
 func (r *cachedReader) readInternal() buf.MultiBuffer {
@@ -98,7 +96,6 @@ type DefaultDispatcher struct {
 	router routing.Router
 	policy policy.Manager
 	stats  stats.Manager
-	dns    dns.Client
 	fdns   dns.FakeDNSEngine
 }
 
@@ -106,10 +103,10 @@ func init() {
 	common.Must(common.RegisterConfig((*Config)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
 		d := new(DefaultDispatcher)
 		if err := core.RequireFeatures(ctx, func(om outbound.Manager, router routing.Router, pm policy.Manager, sm stats.Manager, dc dns.Client) error {
-			core.RequireFeatures(ctx, func(fdns dns.FakeDNSEngine) { // FakeDNSEngine is optional
+			core.OptionalFeatures(ctx, func(fdns dns.FakeDNSEngine) {
 				d.fdns = fdns
 			})
-			return d.Init(config.(*Config), om, router, pm, sm, dc)
+			return d.Init(config.(*Config), om, router, pm, sm)
 		}); err != nil {
 			return nil, err
 		}
@@ -118,12 +115,11 @@ func init() {
 }
 
 // Init initializes DefaultDispatcher.
-func (d *DefaultDispatcher) Init(config *Config, om outbound.Manager, router routing.Router, pm policy.Manager, sm stats.Manager, dns dns.Client) error {
+func (d *DefaultDispatcher) Init(config *Config, om outbound.Manager, router routing.Router, pm policy.Manager, sm stats.Manager) error {
 	d.ohm = om
 	d.router = router
 	d.policy = pm
 	d.stats = sm
-	d.dns = dns
 	return nil
 }
 
@@ -355,7 +351,7 @@ func (d *DefaultDispatcher) DispatchLink(ctx context.Context, destination net.De
 }
 
 func sniffer(ctx context.Context, cReader *cachedReader, metadataOnly bool, network net.Network) (SniffResult, error) {
-	payload := buf.New()
+	payload := buf.NewWithSize(32767)
 	defer payload.Release()
 
 	sniffer := NewSniffer(ctx)
@@ -367,26 +363,36 @@ func sniffer(ctx context.Context, cReader *cachedReader, metadataOnly bool, netw
 	}
 
 	contentResult, contentErr := func() (SniffResult, error) {
+		cacheDeadline := 200 * time.Millisecond
 		totalAttempt := 0
 		for {
 			select {
 			case <-ctx.Done():
 				return nil, ctx.Err()
 			default:
-				totalAttempt++
-				if totalAttempt > 2 {
-					return nil, errSniffingTimeout
+				cachingStartingTimeStamp := time.Now()
+				err := cReader.Cache(payload, cacheDeadline)
+				if err != nil {
+					return nil, err
 				}
+				cachingTimeElapsed := time.Since(cachingStartingTimeStamp)
+				cacheDeadline -= cachingTimeElapsed
 
-				cReader.Cache(payload)
 				if !payload.IsEmpty() {
 					result, err := sniffer.Sniff(ctx, payload.Bytes(), network)
-					if err != common.ErrNoClue {
+					switch err {
+					case common.ErrNoClue: // No Clue: protocol not matches, and sniffer cannot determine whether there will be a match or not
+						totalAttempt++
+					case protocol.ErrProtoNeedMoreData: // Protocol Need More Data: protocol matches, but need more data to complete sniffing
+						// in this case, do not add totalAttempt(allow to read until timeout)
+					default:
 						return result, err
 					}
+				} else {
+					totalAttempt++
 				}
-				if payload.IsFull() {
-					return nil, errUnknownContent
+				if totalAttempt >= 2 || cacheDeadline <= 0 {
+					return nil, errSniffingTimeout
 				}
 			}
 		}
@@ -402,18 +408,6 @@ func sniffer(ctx context.Context, cReader *cachedReader, metadataOnly bool, netw
 func (d *DefaultDispatcher) routedDispatch(ctx context.Context, link *transport.Link, destination net.Destination) {
 	outbounds := session.OutboundsFromContext(ctx)
 	ob := outbounds[len(outbounds)-1]
-	if hosts, ok := d.dns.(dns.HostsLookup); ok && destination.Address.Family().IsDomain() {
-		proxied := hosts.LookupHosts(ob.Target.String())
-		if proxied != nil {
-			ro := ob.RouteTarget == destination
-			destination.Address = *proxied
-			if ro {
-				ob.RouteTarget = destination
-			} else {
-				ob.Target = destination
-			}
-		}
-	}
 
 	var handler outbound.Handler
 

app/dispatcher/sniffer.go

@@ -6,6 +6,7 @@ import (
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/protocol"
 	"github.com/xtls/xray-core/common/protocol/bittorrent"
 	"github.com/xtls/xray-core/common/protocol/http"
 	"github.com/xtls/xray-core/common/protocol/quic"
@@ -58,14 +59,17 @@ var errUnknownContent = errors.New("unknown content")
 func (s *Sniffer) Sniff(c context.Context, payload []byte, network net.Network) (SniffResult, error) {
 	var pendingSniffer []protocolSnifferWithMetadata
 	for _, si := range s.sniffer {
-		s := si.protocolSniffer
+		protocolSniffer := si.protocolSniffer
 		if si.metadataSniffer || si.network != network {
 			continue
 		}
-		result, err := s(c, payload)
+		result, err := protocolSniffer(c, payload)
 		if err == common.ErrNoClue {
 			pendingSniffer = append(pendingSniffer, si)
 			continue
+		} else if err == protocol.ErrProtoNeedMoreData { // Sniffer protocol matched, but need more data to complete sniffing
+			s.sniffer = []protocolSnifferWithMetadata{si}
+			return nil, err
 		}
 
 		if err == nil && result != nil {

app/dns/cache_controller.go

@@ -0,0 +1,188 @@
+package dns
+
+import (
+	"context"
+	go_errors "errors"
+	"github.com/xtls/xray-core/common"
+	"github.com/xtls/xray-core/common/errors"
+	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/signal/pubsub"
+	"github.com/xtls/xray-core/common/task"
+	dns_feature "github.com/xtls/xray-core/features/dns"
+	"golang.org/x/net/dns/dnsmessage"
+	"sync"
+	"time"
+)
+
+type CacheController struct {
+	sync.RWMutex
+	ips          map[string]*record
+	pub          *pubsub.Service
+	cacheCleanup *task.Periodic
+	name         string
+	disableCache bool
+}
+
+func NewCacheController(name string, disableCache bool) *CacheController {
+	c := &CacheController{
+		name:         name,
+		disableCache: disableCache,
+		ips:          make(map[string]*record),
+		pub:          pubsub.NewService(),
+	}
+
+	c.cacheCleanup = &task.Periodic{
+		Interval: time.Minute,
+		Execute:  c.CacheCleanup,
+	}
+	return c
+}
+
+// CacheCleanup clears expired items from cache
+func (c *CacheController) CacheCleanup() error {
+	now := time.Now()
+	c.Lock()
+	defer c.Unlock()
+
+	if len(c.ips) == 0 {
+		return errors.New("nothing to do. stopping...")
+	}
+
+	for domain, record := range c.ips {
+		if record.A != nil && record.A.Expire.Before(now) {
+			record.A = nil
+		}
+		if record.AAAA != nil && record.AAAA.Expire.Before(now) {
+			record.AAAA = nil
+		}
+
+		if record.A == nil && record.AAAA == nil {
+			errors.LogDebug(context.Background(), c.name, "cache cleanup ", domain)
+			delete(c.ips, domain)
+		} else {
+			c.ips[domain] = record
+		}
+	}
+
+	if len(c.ips) == 0 {
+		c.ips = make(map[string]*record)
+	}
+
+	return nil
+}
+
+func (c *CacheController) updateIP(req *dnsRequest, ipRec *IPRecord) {
+	elapsed := time.Since(req.start)
+
+	c.Lock()
+	rec, found := c.ips[req.domain]
+	if !found {
+		rec = &record{}
+	}
+
+	switch req.reqType {
+	case dnsmessage.TypeA:
+		rec.A = ipRec
+	case dnsmessage.TypeAAAA:
+		rec.AAAA = ipRec
+	}
+
+	errors.LogInfo(context.Background(), c.name, " got answer: ", req.domain, " ", req.reqType, " -> ", ipRec.IP, " ", elapsed)
+	c.ips[req.domain] = rec
+
+	switch req.reqType {
+	case dnsmessage.TypeA:
+		c.pub.Publish(req.domain+"4", nil)
+		if !c.disableCache {
+			_, _, err := rec.AAAA.getIPs()
+			if !go_errors.Is(err, errRecordNotFound) {
+				c.pub.Publish(req.domain+"6", nil)
+			}
+		}
+	case dnsmessage.TypeAAAA:
+		c.pub.Publish(req.domain+"6", nil)
+		if !c.disableCache {
+			_, _, err := rec.A.getIPs()
+			if !go_errors.Is(err, errRecordNotFound) {
+				c.pub.Publish(req.domain+"4", nil)
+			}
+		}
+	}
+
+	c.Unlock()
+	common.Must(c.cacheCleanup.Start())
+}
+
+func (c *CacheController) findIPsForDomain(domain string, option dns_feature.IPOption) ([]net.IP, uint32, error) {
+	c.RLock()
+	record, found := c.ips[domain]
+	c.RUnlock()
+
+	if !found {
+		return nil, 0, errRecordNotFound
+	}
+
+	var errs []error
+	var allIPs []net.IP
+	var rTTL uint32 = dns_feature.DefaultTTL
+
+	mergeReq := option.IPv4Enable && option.IPv6Enable
+
+	if option.IPv4Enable {
+		ips, ttl, err := record.A.getIPs()
+		if !mergeReq || go_errors.Is(err, errRecordNotFound) {
+			return ips, ttl, err
+		}
+		if ttl < rTTL {
+			rTTL = ttl
+		}
+		if len(ips) > 0 {
+			allIPs = append(allIPs, ips...)
+		} else {
+			errs = append(errs, err)
+		}
+	}
+
+	if option.IPv6Enable {
+		ips, ttl, err := record.AAAA.getIPs()
+		if !mergeReq || go_errors.Is(err, errRecordNotFound) {
+			return ips, ttl, err
+		}
+		if ttl < rTTL {
+			rTTL = ttl
+		}
+		if len(ips) > 0 {
+			allIPs = append(allIPs, ips...)
+		} else {
+			errs = append(errs, err)
+		}
+	}
+
+	if len(allIPs) > 0 {
+		return allIPs, rTTL, nil
+	}
+	if go_errors.Is(errs[0], errs[1]) {
+		return nil, rTTL, errs[0]
+	}
+	return nil, rTTL, errors.Combine(errs...)
+}
+
+func (c *CacheController) registerSubscribers(domain string, option dns_feature.IPOption) (sub4 *pubsub.Subscriber, sub6 *pubsub.Subscriber) {
+	// ipv4 and ipv6 belong to different subscription groups
+	if option.IPv4Enable {
+		sub4 = c.pub.Subscribe(domain + "4")
+	}
+	if option.IPv6Enable {
+		sub6 = c.pub.Subscribe(domain + "6")
+	}
+	return
+}
+
+func closeSubscribers(sub4 *pubsub.Subscriber, sub6 *pubsub.Subscriber) {
+	if sub4 != nil {
+		sub4.Close()
+	}
+	if sub6 != nil {
+		sub6.Close()
+	}
+}

app/dns/config.pb.go

@@ -80,6 +80,7 @@ const (
 	QueryStrategy_USE_IP  QueryStrategy = 0
 	QueryStrategy_USE_IP4 QueryStrategy = 1
 	QueryStrategy_USE_IP6 QueryStrategy = 2
+	QueryStrategy_USE_SYS QueryStrategy = 3
 )
 
 // Enum value maps for QueryStrategy.
@@ -88,11 +89,13 @@ var (
 		0: "USE_IP",
 		1: "USE_IP4",
 		2: "USE_IP6",
+		3: "USE_SYS",
 	}
 	QueryStrategy_value = map[string]int32{
 		"USE_IP":  0,
 		"USE_IP4": 1,
 		"USE_IP6": 2,
+		"USE_SYS": 3,
 	}
 )
 
@@ -132,9 +135,16 @@ type NameServer struct {
 	ClientIp          []byte                       `protobuf:"bytes,5,opt,name=client_ip,json=clientIp,proto3" json:"client_ip,omitempty"`
 	SkipFallback      bool                         `protobuf:"varint,6,opt,name=skipFallback,proto3" json:"skipFallback,omitempty"`
 	PrioritizedDomain []*NameServer_PriorityDomain `protobuf:"bytes,2,rep,name=prioritized_domain,json=prioritizedDomain,proto3" json:"prioritized_domain,omitempty"`
-	Geoip             []*router.GeoIP              `protobuf:"bytes,3,rep,name=geoip,proto3" json:"geoip,omitempty"`
+	ExpectedGeoip     []*router.GeoIP              `protobuf:"bytes,3,rep,name=expected_geoip,json=expectedGeoip,proto3" json:"expected_geoip,omitempty"`
 	OriginalRules     []*NameServer_OriginalRule   `protobuf:"bytes,4,rep,name=original_rules,json=originalRules,proto3" json:"original_rules,omitempty"`
 	QueryStrategy     QueryStrategy                `protobuf:"varint,7,opt,name=query_strategy,json=queryStrategy,proto3,enum=xray.app.dns.QueryStrategy" json:"query_strategy,omitempty"`
+	ActPrior          bool                         `protobuf:"varint,8,opt,name=actPrior,proto3" json:"actPrior,omitempty"`
+	Tag               string                       `protobuf:"bytes,9,opt,name=tag,proto3" json:"tag,omitempty"`
+	TimeoutMs         uint64                       `protobuf:"varint,10,opt,name=timeoutMs,proto3" json:"timeoutMs,omitempty"`
+	DisableCache      bool                         `protobuf:"varint,11,opt,name=disableCache,proto3" json:"disableCache,omitempty"`
+	FinalQuery        bool                         `protobuf:"varint,12,opt,name=finalQuery,proto3" json:"finalQuery,omitempty"`
+	UnexpectedGeoip   []*router.GeoIP              `protobuf:"bytes,13,rep,name=unexpected_geoip,json=unexpectedGeoip,proto3" json:"unexpected_geoip,omitempty"`
+	ActUnprior        bool                         `protobuf:"varint,14,opt,name=actUnprior,proto3" json:"actUnprior,omitempty"`
 }
 
 func (x *NameServer) Reset() {
@@ -195,9 +205,9 @@ func (x *NameServer) GetPrioritizedDomain() []*NameServer_PriorityDomain {
 	return nil
 }
 
-func (x *NameServer) GetGeoip() []*router.GeoIP {
+func (x *NameServer) GetExpectedGeoip() []*router.GeoIP {
 	if x != nil {
-		return x.Geoip
+		return x.ExpectedGeoip
 	}
 	return nil
 }
@@ -216,6 +226,55 @@ func (x *NameServer) GetQueryStrategy() QueryStrategy {
 	return QueryStrategy_USE_IP
 }
 
+func (x *NameServer) GetActPrior() bool {
+	if x != nil {
+		return x.ActPrior
+	}
+	return false
+}
+
+func (x *NameServer) GetTag() string {
+	if x != nil {
+		return x.Tag
+	}
+	return ""
+}
+
+func (x *NameServer) GetTimeoutMs() uint64 {
+	if x != nil {
+		return x.TimeoutMs
+	}
+	return 0
+}
+
+func (x *NameServer) GetDisableCache() bool {
+	if x != nil {
+		return x.DisableCache
+	}
+	return false
+}
+
+func (x *NameServer) GetFinalQuery() bool {
+	if x != nil {
+		return x.FinalQuery
+	}
+	return false
+}
+
+func (x *NameServer) GetUnexpectedGeoip() []*router.GeoIP {
+	if x != nil {
+		return x.UnexpectedGeoip
+	}
+	return nil
+}
+
+func (x *NameServer) GetActUnprior() bool {
+	if x != nil {
+		return x.ActUnprior
+	}
+	return false
+}
+
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -508,7 +567,7 @@ var file_app_dns_config_proto_rawDesc = []byte{
 	0x2e, 0x64, 0x6e, 0x73, 0x1a, 0x1c, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2f, 0x6e, 0x65, 0x74,
 	0x2f, 0x64, 0x65, 0x73, 0x74, 0x69, 0x6e, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f,
 	0x74, 0x6f, 0x1a, 0x17, 0x61, 0x70, 0x70, 0x2f, 0x72, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x2f, 0x63,
-	0x6f, 0x6e, 0x66, 0x69, 0x67, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0xb2, 0x04, 0x0a, 0x0a,
+	0x6f, 0x6e, 0x66, 0x69, 0x67, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0xb6, 0x06, 0x0a, 0x0a,
 	0x4e, 0x61, 0x6d, 0x65, 0x53, 0x65, 0x72, 0x76, 0x65, 0x72, 0x12, 0x33, 0x0a, 0x07, 0x61, 0x64,
 	0x64, 0x72, 0x65, 0x73, 0x73, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x19, 0x2e, 0x78, 0x72,
 	0x61, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x6e, 0x65, 0x74, 0x2e, 0x45, 0x6e,
@@ -522,75 +581,92 @@ var file_app_dns_config_proto_rawDesc = []byte{
 	0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x64, 0x6e, 0x73, 0x2e, 0x4e, 0x61, 0x6d, 0x65,
 	0x53, 0x65, 0x72, 0x76, 0x65, 0x72, 0x2e, 0x50, 0x72, 0x69, 0x6f, 0x72, 0x69, 0x74, 0x79, 0x44,
 	0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x52, 0x11, 0x70, 0x72, 0x69, 0x6f, 0x72, 0x69, 0x74, 0x69, 0x7a,
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+	0x68, 0x69, 0x6e, 0x67, 0x54, 0x79, 0x70, 0x65, 0x52, 0x04, 0x74, 0x79, 0x70, 0x65, 0x12, 0x16,
+	0x0a, 0x06, 0x64, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x06,
+	0x64, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x12, 0x0e, 0x0a, 0x02, 0x69, 0x70, 0x18, 0x03, 0x20, 0x03,
+	0x28, 0x0c, 0x52, 0x02, 0x69, 0x70, 0x12, 0x25, 0x0a, 0x0e, 0x70, 0x72, 0x6f, 0x78, 0x69, 0x65,
+	0x64, 0x5f, 0x64, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x18, 0x04, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0d,
+	0x70, 0x72, 0x6f, 0x78, 0x69, 0x65, 0x64, 0x44, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x4a, 0x04, 0x08,
+	0x07, 0x10, 0x08, 0x2a, 0x45, 0x0a, 0x12, 0x44, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x4d, 0x61, 0x74,
+	0x63, 0x68, 0x69, 0x6e, 0x67, 0x54, 0x79, 0x70, 0x65, 0x12, 0x08, 0x0a, 0x04, 0x46, 0x75, 0x6c,
+	0x6c, 0x10, 0x00, 0x12, 0x0d, 0x0a, 0x09, 0x53, 0x75, 0x62, 0x64, 0x6f, 0x6d, 0x61, 0x69, 0x6e,
+	0x10, 0x01, 0x12, 0x0b, 0x0a, 0x07, 0x4b, 0x65, 0x79, 0x77, 0x6f, 0x72, 0x64, 0x10, 0x02, 0x12,
+	0x09, 0x0a, 0x05, 0x52, 0x65, 0x67, 0x65, 0x78, 0x10, 0x03, 0x2a, 0x42, 0x0a, 0x0d, 0x51, 0x75,
+	0x65, 0x72, 0x79, 0x53, 0x74, 0x72, 0x61, 0x74, 0x65, 0x67, 0x79, 0x12, 0x0a, 0x0a, 0x06, 0x55,
+	0x53, 0x45, 0x5f, 0x49, 0x50, 0x10, 0x00, 0x12, 0x0b, 0x0a, 0x07, 0x55, 0x53, 0x45, 0x5f, 0x49,
+	0x50, 0x34, 0x10, 0x01, 0x12, 0x0b, 0x0a, 0x07, 0x55, 0x53, 0x45, 0x5f, 0x49, 0x50, 0x36, 0x10,
+	0x02, 0x12, 0x0b, 0x0a, 0x07, 0x55, 0x53, 0x45, 0x5f, 0x53, 0x59, 0x53, 0x10, 0x03, 0x42, 0x46,
+	0x0a, 0x10, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x64,
+	0x6e, 0x73, 0x50, 0x01, 0x5a, 0x21, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d,
+	0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f,
+	0x61, 0x70, 0x70, 0x2f, 0x64, 0x6e, 0x73, 0xaa, 0x02, 0x0c, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x41,
+	0x70, 0x70, 0x2e, 0x44, 0x6e, 0x73, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -621,19 +697,20 @@ var file_app_dns_config_proto_goTypes = []any{
 var file_app_dns_config_proto_depIdxs = []int32{
 	7,  // 0: xray.app.dns.NameServer.address:type_name -> xray.common.net.Endpoint
 	4,  // 1: xray.app.dns.NameServer.prioritized_domain:type_name -> xray.app.dns.NameServer.PriorityDomain
-	8,  // 2: xray.app.dns.NameServer.geoip:type_name -> xray.app.router.GeoIP
+	8,  // 2: xray.app.dns.NameServer.expected_geoip:type_name -> xray.app.router.GeoIP
 	5,  // 3: xray.app.dns.NameServer.original_rules:type_name -> xray.app.dns.NameServer.OriginalRule
 	1,  // 4: xray.app.dns.NameServer.query_strategy:type_name -> xray.app.dns.QueryStrategy
-	2,  // 5: xray.app.dns.Config.name_server:type_name -> xray.app.dns.NameServer
-	6,  // 6: xray.app.dns.Config.static_hosts:type_name -> xray.app.dns.Config.HostMapping
-	1,  // 7: xray.app.dns.Config.query_strategy:type_name -> xray.app.dns.QueryStrategy
-	0,  // 8: xray.app.dns.NameServer.PriorityDomain.type:type_name -> xray.app.dns.DomainMatchingType
-	0,  // 9: xray.app.dns.Config.HostMapping.type:type_name -> xray.app.dns.DomainMatchingType
-	10, // [10:10] is the sub-list for method output_type
-	10, // [10:10] is the sub-list for method input_type
-	10, // [10:10] is the sub-list for extension type_name
-	10, // [10:10] is the sub-list for extension extendee
-	0,  // [0:10] is the sub-list for field type_name
+	8,  // 5: xray.app.dns.NameServer.unexpected_geoip:type_name -> xray.app.router.GeoIP
+	2,  // 6: xray.app.dns.Config.name_server:type_name -> xray.app.dns.NameServer
+	6,  // 7: xray.app.dns.Config.static_hosts:type_name -> xray.app.dns.Config.HostMapping
+	1,  // 8: xray.app.dns.Config.query_strategy:type_name -> xray.app.dns.QueryStrategy
+	0,  // 9: xray.app.dns.NameServer.PriorityDomain.type:type_name -> xray.app.dns.DomainMatchingType
+	0,  // 10: xray.app.dns.Config.HostMapping.type:type_name -> xray.app.dns.DomainMatchingType
+	11, // [11:11] is the sub-list for method output_type
+	11, // [11:11] is the sub-list for method input_type
+	11, // [11:11] is the sub-list for extension type_name
+	11, // [11:11] is the sub-list for extension extendee
+	0,  // [0:11] is the sub-list for field type_name
 }
 
 func init() { file_app_dns_config_proto_init() }

app/dns/config.proto

@@ -25,9 +25,16 @@ message NameServer {
   }
 
   repeated PriorityDomain prioritized_domain = 2;
-  repeated xray.app.router.GeoIP geoip = 3;
+  repeated xray.app.router.GeoIP expected_geoip = 3;
   repeated OriginalRule original_rules = 4;
   QueryStrategy query_strategy = 7;
+  bool actPrior = 8;
+  string tag = 9;
+  uint64 timeoutMs = 10;
+  bool disableCache = 11;
+  bool finalQuery = 12;
+  repeated xray.app.router.GeoIP unexpected_geoip = 13;
+  bool actUnprior = 14;
 }
 
 enum DomainMatchingType {
@@ -41,6 +48,7 @@ enum QueryStrategy {
   USE_IP = 0;
   USE_IP4 = 1;
   USE_IP6 = 2;
+  USE_SYS = 3;
 }
 
 message Config {

app/dns/dns.go

@@ -3,11 +3,12 @@ package dns
 
 import (
 	"context"
+	go_errors "errors"
 	"fmt"
+	"sort"
 	"strings"
 	"sync"
 
-	"github.com/xtls/xray-core/app/router"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
@@ -19,8 +20,6 @@ import (
 // DNS is a DNS rely server.
 type DNS struct {
 	sync.Mutex
-	tag                    string
-	disableCache           bool
 	disableFallback        bool
 	disableFallbackIfMatch bool
 	ipOption               *dns.IPOption
@@ -29,6 +28,7 @@ type DNS struct {
 	ctx                    context.Context
 	domainMatcher          strmatcher.IndexMatcher
 	matcherInfos           []*DomainMatcherInfo
+	checkSystem            bool
 }
 
 // DomainMatcherInfo contains information attached to index returned by Server.domainMatcher
@@ -39,13 +39,6 @@ type DomainMatcherInfo struct {
 
 // New creates a new DNS server with given configuration.
 func New(ctx context.Context, config *Config) (*DNS, error) {
-	var tag string
-	if len(config.Tag) > 0 {
-		tag = config.Tag
-	} else {
-		tag = generateRandomTag()
-	}
-
 	var clientIP net.IP
 	switch len(config.ClientIp) {
 	case 0, net.IPv4len, net.IPv6len:
@@ -54,26 +47,36 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 		return nil, errors.New("unexpected client IP length ", len(config.ClientIp))
 	}
 
-	var ipOption *dns.IPOption
+	var ipOption dns.IPOption
+	checkSystem := false
 	switch config.QueryStrategy {
 	case QueryStrategy_USE_IP:
-		ipOption = &dns.IPOption{
+		ipOption = dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
 		}
+	case QueryStrategy_USE_SYS:
+		ipOption = dns.IPOption{
+			IPv4Enable: true,
+			IPv6Enable: true,
+			FakeEnable: false,
+		}
+		checkSystem = true
 	case QueryStrategy_USE_IP4:
-		ipOption = &dns.IPOption{
+		ipOption = dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: false,
 			FakeEnable: false,
 		}
 	case QueryStrategy_USE_IP6:
-		ipOption = &dns.IPOption{
+		ipOption = dns.IPOption{
 			IPv4Enable: false,
 			IPv6Enable: true,
 			FakeEnable: false,
 		}
+	default:
+		return nil, errors.New("unexpected query strategy ", config.QueryStrategy)
 	}
 
 	hosts, err := NewStaticHosts(config.StaticHosts)
@@ -81,8 +84,14 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 		return nil, errors.New("failed to create hosts").Base(err)
 	}
 
-	clients := []*Client{}
+	var clients []*Client
 	domainRuleCount := 0
+
+	var defaultTag = config.Tag
+	if len(config.Tag) == 0 {
+		defaultTag = generateRandomTag()
+	}
+
 	for _, ns := range config.NameServer {
 		domainRuleCount += len(ns.PrioritizedDomain)
 	}
@@ -90,7 +99,6 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 	// MatcherInfos is ensured to cover the maximum index domainMatcher could return, where matcher's index starts from 1
 	matcherInfos := make([]*DomainMatcherInfo, domainRuleCount+1)
 	domainMatcher := &strmatcher.MatcherGroup{}
-	geoipContainer := router.GeoIPMatcherContainer{}
 
 	for _, ns := range config.NameServer {
 		clientIdx := len(clients)
@@ -108,7 +116,19 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 		case net.IPv4len, net.IPv6len:
 			myClientIP = net.IP(ns.ClientIp)
 		}
-		client, err := NewClient(ctx, ns, myClientIP, geoipContainer, &matcherInfos, updateDomain)
+
+		disableCache := config.DisableCache || ns.DisableCache
+
+		var tag = defaultTag
+		if len(ns.Tag) > 0 {
+			tag = ns.Tag
+		}
+		clientIPOption := ResolveIpOptionOverride(ns.QueryStrategy, ipOption)
+		if !clientIPOption.IPv4Enable && !clientIPOption.IPv6Enable {
+			return nil, errors.New("no QueryStrategy available for ", ns.Address)
+		}
+
+		client, err := NewClient(ctx, ns, myClientIP, disableCache, tag, clientIPOption, &matcherInfos, updateDomain)
 		if err != nil {
 			return nil, errors.New("failed to create client").Base(err)
 		}
@@ -117,20 +137,19 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 
 	// If there is no DNS client in config, add a `localhost` DNS client
 	if len(clients) == 0 {
-		clients = append(clients, NewLocalDNSClient())
+		clients = append(clients, NewLocalDNSClient(ipOption))
 	}
 
 	return &DNS{
-		tag:                    tag,
 		hosts:                  hosts,
-		ipOption:               ipOption,
+		ipOption:               &ipOption,
 		clients:                clients,
 		ctx:                    ctx,
 		domainMatcher:          domainMatcher,
 		matcherInfos:           matcherInfos,
-		disableCache:           config.DisableCache,
 		disableFallback:        config.DisableFallback,
 		disableFallbackIfMatch: config.DisableFallbackIfMatch,
+		checkSystem:            checkSystem,
 	}, nil
 }
 
@@ -152,94 +171,101 @@ func (s *DNS) Close() error {
 // IsOwnLink implements proxy.dns.ownLinkVerifier
 func (s *DNS) IsOwnLink(ctx context.Context) bool {
 	inbound := session.InboundFromContext(ctx)
-	return inbound != nil && inbound.Tag == s.tag
+	if inbound == nil {
+		return false
+	}
+	for _, client := range s.clients {
+		if client.tag == inbound.Tag {
+			return true
+		}
+	}
+	return false
 }
 
 // LookupIP implements dns.Client.
-func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, error) {
-	if domain == "" {
-		return nil, errors.New("empty domain name")
-	}
-
-	option.IPv4Enable = option.IPv4Enable && s.ipOption.IPv4Enable
-	option.IPv6Enable = option.IPv6Enable && s.ipOption.IPv6Enable
-
-	if !option.IPv4Enable && !option.IPv6Enable {
-		return nil, dns.ErrEmptyResponse
-	}
-
+func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, uint32, error) {
 	// Normalize the FQDN form query
 	domain = strings.TrimSuffix(domain, ".")
+	if domain == "" {
+		return nil, 0, errors.New("empty domain name")
+	}
+
+	if s.checkSystem {
+		supportIPv4, supportIPv6 := checkSystemNetwork()
+		option.IPv4Enable = option.IPv4Enable && supportIPv4
+		option.IPv6Enable = option.IPv6Enable && supportIPv6
+	} else {
+		option.IPv4Enable = option.IPv4Enable && s.ipOption.IPv4Enable
+		option.IPv6Enable = option.IPv6Enable && s.ipOption.IPv6Enable
+	}
+
+	if !option.IPv4Enable && !option.IPv6Enable {
+		return nil, 0, dns.ErrEmptyResponse
+	}
 
 	// Static host lookup
-	switch addrs := s.hosts.Lookup(domain, option); {
+	switch addrs, err := s.hosts.Lookup(domain, option); {
+	case err != nil:
+		if go_errors.Is(err, dns.ErrEmptyResponse) {
+			return nil, 0, dns.ErrEmptyResponse
+		}
+		return nil, 0, errors.New("returning nil for domain ", domain).Base(err)
 	case addrs == nil: // Domain not recorded in static host
 		break
 	case len(addrs) == 0: // Domain recorded, but no valid IP returned (e.g. IPv4 address with only IPv6 enabled)
-		return nil, dns.ErrEmptyResponse
+		return nil, 0, dns.ErrEmptyResponse
 	case len(addrs) == 1 && addrs[0].Family().IsDomain(): // Domain replacement
 		errors.LogInfo(s.ctx, "domain replaced: ", domain, " -> ", addrs[0].Domain())
 		domain = addrs[0].Domain()
 	default: // Successfully found ip records in static host
 		errors.LogInfo(s.ctx, "returning ", len(addrs), " IP(s) for domain ", domain, " -> ", addrs)
-		return toNetIP(addrs)
+		ips, err := toNetIP(addrs)
+		if err != nil {
+			return nil, 0, err
+		}
+		return ips, 10, nil // Hosts ttl is 10
 	}
 
 	// Name servers lookup
-	errs := []error{}
-	ctx := session.ContextWithInbound(s.ctx, &session.Inbound{Tag: s.tag})
+	var errs []error
 	for _, client := range s.sortClients(domain) {
 		if !option.FakeEnable && strings.EqualFold(client.Name(), "FakeDNS") {
 			errors.LogDebug(s.ctx, "skip DNS resolution for domain ", domain, " at server ", client.Name())
 			continue
 		}
-		ips, err := client.QueryIP(ctx, domain, option, s.disableCache)
+
+		ips, ttl, err := client.QueryIP(s.ctx, domain, option)
+
 		if len(ips) > 0 {
-			return ips, nil
+			if ttl == 0 {
+				ttl = 1
+			}
+			return ips, ttl, nil
 		}
-		if err != nil {
-			errors.LogInfoInner(s.ctx, err, "failed to lookup ip for domain ", domain, " at server ", client.Name())
-			errs = append(errs, err)
+
+		errors.LogInfoInner(s.ctx, err, "failed to lookup ip for domain ", domain, " at server ", client.Name())
+		if err == nil {
+			err = dns.ErrEmptyResponse
 		}
-		// 5 for RcodeRefused in miekg/dns, hardcode to reduce binary size
-		if err != context.Canceled && err != context.DeadlineExceeded && err != errExpectedIPNonMatch && err != dns.ErrEmptyResponse && dns.RCodeFromError(err) != 5 {
-			return nil, err
+		errs = append(errs, err)
+
+		if client.IsFinalQuery() {
+			break
 		}
 	}
 
-	return nil, errors.New("returning nil for domain ", domain).Base(errors.Combine(errs...))
-}
-
-// LookupHosts implements dns.HostsLookup.
-func (s *DNS) LookupHosts(domain string) *net.Address {
-	domain = strings.TrimSuffix(domain, ".")
-	if domain == "" {
-		return nil
+	if len(errs) > 0 {
+		allErrs := errors.Combine(errs...)
+		err0 := errs[0]
+		if errors.AllEqual(err0, allErrs) {
+			if go_errors.Is(err0, dns.ErrEmptyResponse) {
+				return nil, 0, dns.ErrEmptyResponse
+			}
+			return nil, 0, errors.New("returning nil for domain ", domain).Base(err0)
+		}
+		return nil, 0, errors.New("returning nil for domain ", domain).Base(allErrs)
 	}
-	// Normalize the FQDN form query
-	addrs := s.hosts.Lookup(domain, *s.ipOption)
-	if len(addrs) > 0 {
-		errors.LogInfo(s.ctx, "domain replaced: ", domain, " -> ", addrs[0].String())
-		return &addrs[0]
-	}
-
-	return nil
-}
-
-// GetIPOption implements ClientWithIPOption.
-func (s *DNS) GetIPOption() *dns.IPOption {
-	return s.ipOption
-}
-
-// SetQueryOption implements ClientWithIPOption.
-func (s *DNS) SetQueryOption(isIPv4Enable, isIPv6Enable bool) {
-	s.ipOption.IPv4Enable = isIPv4Enable
-	s.ipOption.IPv6Enable = isIPv6Enable
-}
-
-// SetFakeDNSOption implements ClientWithIPOption.
-func (s *DNS) SetFakeDNSOption(isFakeEnable bool) {
-	s.ipOption.FakeEnable = isFakeEnable
+	return nil, 0, dns.ErrEmptyResponse
 }
 
 func (s *DNS) sortClients(domain string) []*Client {
@@ -250,7 +276,11 @@ func (s *DNS) sortClients(domain string) []*Client {
 
 	// Priority domain matching
 	hasMatch := false
-	for _, match := range s.domainMatcher.Match(domain) {
+	MatchSlice := s.domainMatcher.Match(domain)
+	sort.Slice(MatchSlice, func(i, j int) bool {
+		return MatchSlice[i] < MatchSlice[j]
+	})
+	for _, match := range MatchSlice {
 		info := s.matcherInfos[match]
 		client := s.clients[info.clientIdx]
 		domainRule := client.domains[info.domainRuleIdx]
@@ -297,3 +327,22 @@ func init() {
 		return New(ctx, config.(*Config))
 	}))
 }
+
+func checkSystemNetwork() (supportIPv4 bool, supportIPv6 bool) {
+	conn4, err4 := net.Dial("udp4", "8.8.8.8:53")
+	if err4 != nil {
+		supportIPv4 = false
+	} else {
+		supportIPv4 = true
+		conn4.Close()
+	}
+
+	conn6, err6 := net.Dial("udp6", "[2001:4860:4860::8888]:53")
+	if err6 != nil {
+		supportIPv6 = false
+	} else {
+		supportIPv6 = true
+		conn6.Close()
+	}
+	return
+}

app/dns/dns_test.go

@@ -76,6 +76,9 @@ func (*staticHandler) ServeDNS(w dns.ResponseWriter, r *dns.Msg) {
 		case q.Name == "notexist.google.com." && q.Qtype == dns.TypeAAAA:
 			ans.MsgHdr.Rcode = dns.RcodeNameError
 
+		case q.Name == "notexist.google.com." && q.Qtype == dns.TypeA:
+			ans.MsgHdr.Rcode = dns.RcodeNameError
+
 		case q.Name == "hostname." && q.Qtype == dns.TypeA:
 			rr, _ := dns.NewRR("hostname. IN A 127.0.0.1")
 			ans.Answer = append(ans.Answer, rr)
@@ -117,7 +120,6 @@ func TestUDPServerSubnet(t *testing.T) {
 		Handler: &staticHandler{},
 		UDPSize: 1200,
 	}
-
 	go dnsServer.ListenAndServe()
 	time.Sleep(time.Second)
 
@@ -155,7 +157,7 @@ func TestUDPServerSubnet(t *testing.T) {
 
 	client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)
 
-	ips, err := client.LookupIP("google.com", feature_dns.IPOption{
+	ips, _, err := client.LookupIP("google.com", feature_dns.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
 		FakeEnable: false,
@@ -216,7 +218,7 @@ func TestUDPServer(t *testing.T) {
 	client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)
 
 	{
-		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
+		ips, _, err := client.LookupIP("google.com", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -231,7 +233,7 @@ func TestUDPServer(t *testing.T) {
 	}
 
 	{
-		ips, err := client.LookupIP("facebook.com", feature_dns.IPOption{
+		ips, _, err := client.LookupIP("facebook.com", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -246,7 +248,7 @@ func TestUDPServer(t *testing.T) {
 	}
 
 	{
-		_, err := client.LookupIP("notexist.google.com", feature_dns.IPOption{
+		_, _, err := client.LookupIP("notexist.google.com", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -260,7 +262,7 @@ func TestUDPServer(t *testing.T) {
 	}
 
 	{
-		ips, err := client.LookupIP("ipv4only.google.com", feature_dns.IPOption{
+		ips, _, err := client.LookupIP("ipv4only.google.com", feature_dns.IPOption{
 			IPv4Enable: false,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -276,7 +278,7 @@ func TestUDPServer(t *testing.T) {
 	dnsServer.Shutdown()
 
 	{
-		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
+		ips, _, err := client.LookupIP("google.com", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -357,7 +359,7 @@ func TestPrioritizedDomain(t *testing.T) {
 	startTime := time.Now()
 
 	{
-		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
+		ips, _, err := client.LookupIP("google.com", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -423,7 +425,7 @@ func TestUDPServerIPv6(t *testing.T) {
 
 	client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)
 	{
-		ips, err := client.LookupIP("ipv6.google.com", feature_dns.IPOption{
+		ips, _, err := client.LookupIP("ipv6.google.com", feature_dns.IPOption{
 			IPv4Enable: false,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -492,7 +494,7 @@ func TestStaticHostDomain(t *testing.T) {
 	client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)
 
 	{
-		ips, err := client.LookupIP("example.com", feature_dns.IPOption{
+		ips, _, err := client.LookupIP("example.com", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -537,7 +539,7 @@ func TestIPMatch(t *testing.T) {
 							},
 							Port: uint32(port),
 						},
-						Geoip: []*router.GeoIP{
+						ExpectedGeoip: []*router.GeoIP{
 							{
 								CountryCode: "local",
 								Cidr: []*router.CIDR{
@@ -561,7 +563,7 @@ func TestIPMatch(t *testing.T) {
 							},
 							Port: uint32(port),
 						},
-						Geoip: []*router.GeoIP{
+						ExpectedGeoip: []*router.GeoIP{
 							{
 								CountryCode: "test",
 								Cidr: []*router.CIDR{
@@ -603,7 +605,7 @@ func TestIPMatch(t *testing.T) {
 	startTime := time.Now()
 
 	{
-		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
+		ips, _, err := client.LookupIP("google.com", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -665,7 +667,7 @@ func TestLocalDomain(t *testing.T) {
 							// Equivalent of dotless:localhost
 							{Type: DomainMatchingType_Regex, Domain: "^[^.]*localhost[^.]*$"},
 						},
-						Geoip: []*router.GeoIP{
+						ExpectedGeoip: []*router.GeoIP{
 							{ // Will match localhost, localhost-a and localhost-b,
 								CountryCode: "local",
 								Cidr: []*router.CIDR{
@@ -726,7 +728,7 @@ func TestLocalDomain(t *testing.T) {
 	startTime := time.Now()
 
 	{ // Will match dotless:
-		ips, err := client.LookupIP("hostname", feature_dns.IPOption{
+		ips, _, err := client.LookupIP("hostname", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -741,7 +743,7 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match domain:local
-		ips, err := client.LookupIP("hostname.local", feature_dns.IPOption{
+		ips, _, err := client.LookupIP("hostname.local", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -756,7 +758,7 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match static ip
-		ips, err := client.LookupIP("hostnamestatic", feature_dns.IPOption{
+		ips, _, err := client.LookupIP("hostnamestatic", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -771,7 +773,7 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match domain replacing
-		ips, err := client.LookupIP("hostnamealias", feature_dns.IPOption{
+		ips, _, err := client.LookupIP("hostnamealias", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -785,8 +787,8 @@ func TestLocalDomain(t *testing.T) {
 		}
 	}
 
-	{ // Will match dotless:localhost, but not expectIPs: 127.0.0.2, 127.0.0.3, then matches at dotless:
-		ips, err := client.LookupIP("localhost", feature_dns.IPOption{
+	{ // Will match dotless:localhost, but not expectedIPs: 127.0.0.2, 127.0.0.3, then matches at dotless:
+		ips, _, err := client.LookupIP("localhost", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -800,8 +802,8 @@ func TestLocalDomain(t *testing.T) {
 		}
 	}
 
-	{ // Will match dotless:localhost, and expectIPs: 127.0.0.2, 127.0.0.3
-		ips, err := client.LookupIP("localhost-a", feature_dns.IPOption{
+	{ // Will match dotless:localhost, and expectedIPs: 127.0.0.2, 127.0.0.3
+		ips, _, err := client.LookupIP("localhost-a", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -815,8 +817,8 @@ func TestLocalDomain(t *testing.T) {
 		}
 	}
 
-	{ // Will match dotless:localhost, and expectIPs: 127.0.0.2, 127.0.0.3
-		ips, err := client.LookupIP("localhost-b", feature_dns.IPOption{
+	{ // Will match dotless:localhost, and expectedIPs: 127.0.0.2, 127.0.0.3
+		ips, _, err := client.LookupIP("localhost-b", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -831,7 +833,7 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match dotless:
-		ips, err := client.LookupIP("Mijia Cloud", feature_dns.IPOption{
+		ips, _, err := client.LookupIP("Mijia Cloud", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -895,7 +897,7 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 								Domain: "google.com",
 							},
 						},
-						Geoip: []*router.GeoIP{
+						ExpectedGeoip: []*router.GeoIP{
 							{ // Will only match 8.8.8.8 and 8.8.4.4
 								Cidr: []*router.CIDR{
 									{Ip: []byte{8, 8, 8, 8}, Prefix: 32},
@@ -920,7 +922,7 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 								Domain: "google.com",
 							},
 						},
-						Geoip: []*router.GeoIP{
+						ExpectedGeoip: []*router.GeoIP{
 							{ // Will match 8.8.8.8 and 8.8.8.7, etc
 								Cidr: []*router.CIDR{
 									{Ip: []byte{8, 8, 8, 7}, Prefix: 24},
@@ -944,7 +946,7 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 								Domain: "api.google.com",
 							},
 						},
-						Geoip: []*router.GeoIP{
+						ExpectedGeoip: []*router.GeoIP{
 							{ // Will only match 8.8.7.7 (api.google.com)
 								Cidr: []*router.CIDR{
 									{Ip: []byte{8, 8, 7, 7}, Prefix: 32},
@@ -968,7 +970,7 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 								Domain: "v2.api.google.com",
 							},
 						},
-						Geoip: []*router.GeoIP{
+						ExpectedGeoip: []*router.GeoIP{
 							{ // Will only match 8.8.7.8 (v2.api.google.com)
 								Cidr: []*router.CIDR{
 									{Ip: []byte{8, 8, 7, 8}, Prefix: 32},
@@ -997,7 +999,7 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 	startTime := time.Now()
 
 	{ // Will match server 1,2 and server 1 returns expected ip
-		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
+		ips, _, err := client.LookupIP("google.com", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -1012,7 +1014,7 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 	}
 
 	{ // Will match server 1,2 and server 1 returns unexpected ip, then server 2 returns expected one
-		ips, err := client.LookupIP("ipv6.google.com", feature_dns.IPOption{
+		ips, _, err := client.LookupIP("ipv6.google.com", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: false,
 			FakeEnable: false,
@@ -1027,7 +1029,7 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 	}
 
 	{ // Will match server 3,1,2 and server 3 returns expected one
-		ips, err := client.LookupIP("api.google.com", feature_dns.IPOption{
+		ips, _, err := client.LookupIP("api.google.com", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,
@@ -1042,7 +1044,7 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 	}
 
 	{ // Will match server 4,3,1,2 and server 4 returns expected one
-		ips, err := client.LookupIP("v2.api.google.com", feature_dns.IPOption{
+		ips, _, err := client.LookupIP("v2.api.google.com", feature_dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 			FakeEnable: false,

app/dns/dnscommon.go

@@ -31,30 +31,34 @@ type record struct {
 
 // IPRecord is a cacheable item for a resolved domain
 type IPRecord struct {
-	ReqID  uint16
-	IP     []net.Address
-	Expire time.Time
-	RCode  dnsmessage.RCode
+	ReqID     uint16
+	IP        []net.IP
+	Expire    time.Time
+	RCode     dnsmessage.RCode
+	RawHeader *dnsmessage.Header
 }
 
-func (r *IPRecord) getIPs() ([]net.Address, error) {
-	if r == nil || r.Expire.Before(time.Now()) {
-		return nil, errRecordNotFound
+func (r *IPRecord) getIPs() ([]net.IP, uint32, error) {
+	if r == nil {
+		return nil, 0, errRecordNotFound
+	}
+	untilExpire := time.Until(r.Expire).Seconds()
+	if untilExpire <= 0 {
+		return nil, 0, errRecordNotFound
+	}
+
+	ttl := uint32(untilExpire) + 1
+	if ttl == 1 {
+		r.Expire = time.Now().Add(time.Second) // To ensure that two consecutive requests get the same result
 	}
 	if r.RCode != dnsmessage.RCodeSuccess {
-		return nil, dns_feature.RCodeError(r.RCode)
+		return nil, ttl, dns_feature.RCodeError(r.RCode)
+	}
+	if len(r.IP) == 0 {
+		return nil, ttl, dns_feature.ErrEmptyResponse
 	}
-	return r.IP, nil
-}
 
-func isNewer(baseRec *IPRecord, newRec *IPRecord) bool {
-	if newRec == nil {
-		return false
-	}
-	if baseRec == nil {
-		return true
-	}
-	return baseRec.Expire.Before(newRec.Expire)
+	return r.IP, ttl, nil
 }
 
 var errRecordNotFound = errors.New("record not found")
@@ -67,49 +71,59 @@ type dnsRequest struct {
 	msg     *dnsmessage.Message
 }
 
-func genEDNS0Options(clientIP net.IP) *dnsmessage.Resource {
-	if len(clientIP) == 0 {
+func genEDNS0Options(clientIP net.IP, padding int) *dnsmessage.Resource {
+	if len(clientIP) == 0 && padding == 0 {
 		return nil
 	}
 
-	var netmask int
-	var family uint16
-
-	if len(clientIP) == 4 {
-		family = 1
-		netmask = 24 // 24 for IPV4, 96 for IPv6
-	} else {
-		family = 2
-		netmask = 96
-	}
-
-	b := make([]byte, 4)
-	binary.BigEndian.PutUint16(b[0:], family)
-	b[2] = byte(netmask)
-	b[3] = 0
-	switch family {
-	case 1:
-		ip := clientIP.To4().Mask(net.CIDRMask(netmask, net.IPv4len*8))
-		needLength := (netmask + 8 - 1) / 8 // division rounding up
-		b = append(b, ip[:needLength]...)
-	case 2:
-		ip := clientIP.Mask(net.CIDRMask(netmask, net.IPv6len*8))
-		needLength := (netmask + 8 - 1) / 8 // division rounding up
-		b = append(b, ip[:needLength]...)
-	}
-
-	const EDNS0SUBNET = 0x08
+	const EDNS0SUBNET = 0x8
+	const EDNS0PADDING = 0xc
 
 	opt := new(dnsmessage.Resource)
 	common.Must(opt.Header.SetEDNS0(1350, 0xfe00, true))
+	body := dnsmessage.OPTResource{}
+	opt.Body = &body
 
-	opt.Body = &dnsmessage.OPTResource{
-		Options: []dnsmessage.Option{
-			{
+	if len(clientIP) != 0 {
+		var netmask int
+		var family uint16
+
+		if len(clientIP) == 4 {
+			family = 1
+			netmask = 24 // 24 for IPV4, 96 for IPv6
+		} else {
+			family = 2
+			netmask = 96
+		}
+
+		b := make([]byte, 4)
+		binary.BigEndian.PutUint16(b[0:], family)
+		b[2] = byte(netmask)
+		b[3] = 0
+		switch family {
+		case 1:
+			ip := clientIP.To4().Mask(net.CIDRMask(netmask, net.IPv4len*8))
+			needLength := (netmask + 8 - 1) / 8 // division rounding up
+			b = append(b, ip[:needLength]...)
+		case 2:
+			ip := clientIP.Mask(net.CIDRMask(netmask, net.IPv6len*8))
+			needLength := (netmask + 8 - 1) / 8 // division rounding up
+			b = append(b, ip[:needLength]...)
+		}
+
+		body.Options = append(body.Options,
+			dnsmessage.Option{
 				Code: EDNS0SUBNET,
 				Data: b,
-			},
-		},
+			})
+	}
+
+	if padding != 0 {
+		body.Options = append(body.Options,
+			dnsmessage.Option{
+				Code: EDNS0PADDING,
+				Data: make([]byte, padding),
+			})
 	}
 
 	return opt
@@ -179,9 +193,10 @@ func parseResponse(payload []byte) (*IPRecord, error) {
 
 	now := time.Now()
 	ipRecord := &IPRecord{
-		ReqID:  h.ID,
-		RCode:  h.RCode,
-		Expire: now.Add(time.Second * 600),
+		ReqID:     h.ID,
+		RCode:     h.RCode,
+		Expire:    now.Add(time.Second * dns_feature.DefaultTTL),
+		RawHeader: &h,
 	}
 
 L:
@@ -196,7 +211,7 @@ L:
 
 		ttl := ah.TTL
 		if ttl == 0 {
-			ttl = 600
+			ttl = 1
 		}
 		expire := now.Add(time.Duration(ttl) * time.Second)
 		if ipRecord.Expire.After(expire) {
@@ -210,14 +225,17 @@ L:
 				errors.LogInfoInner(context.Background(), err, "failed to parse A record for domain: ", ah.Name)
 				break L
 			}
-			ipRecord.IP = append(ipRecord.IP, net.IPAddress(ans.A[:]))
+			ipRecord.IP = append(ipRecord.IP, net.IPAddress(ans.A[:]).IP())
 		case dnsmessage.TypeAAAA:
 			ans, err := parser.AAAAResource()
 			if err != nil {
 				errors.LogInfoInner(context.Background(), err, "failed to parse AAAA record for domain: ", ah.Name)
 				break L
 			}
-			ipRecord.IP = append(ipRecord.IP, net.IPAddress(ans.AAAA[:]))
+			newIP := net.IPAddress(ans.AAAA[:]).IP()
+			if len(newIP) == net.IPv6len {
+				ipRecord.IP = append(ipRecord.IP, newIP)
+			}
 		default:
 			if err := parser.SkipAnswer(); err != nil {
 				errors.LogInfoInner(context.Background(), err, "failed to skip answer")

app/dns/dnscommon_test.go

@@ -18,31 +18,31 @@ func Test_parseResponse(t *testing.T) {
 
 	ans := new(dns.Msg)
 	ans.Id = 0
-	p = append(p, common.Must2(ans.Pack()).([]byte))
+	p = append(p, common.Must2(ans.Pack()))
 
 	p = append(p, []byte{})
 
 	ans = new(dns.Msg)
 	ans.Id = 1
 	ans.Answer = append(ans.Answer,
-		common.Must2(dns.NewRR("google.com. IN CNAME m.test.google.com")).(dns.RR),
-		common.Must2(dns.NewRR("google.com. IN CNAME fake.google.com")).(dns.RR),
-		common.Must2(dns.NewRR("google.com. IN A 8.8.8.8")).(dns.RR),
-		common.Must2(dns.NewRR("google.com. IN A 8.8.4.4")).(dns.RR),
+		common.Must2(dns.NewRR("google.com. IN CNAME m.test.google.com")),
+		common.Must2(dns.NewRR("google.com. IN CNAME fake.google.com")),
+		common.Must2(dns.NewRR("google.com. IN A 8.8.8.8")),
+		common.Must2(dns.NewRR("google.com. IN A 8.8.4.4")),
 	)
-	p = append(p, common.Must2(ans.Pack()).([]byte))
+	p = append(p, common.Must2(ans.Pack()))
 
 	ans = new(dns.Msg)
 	ans.Id = 2
 	ans.Answer = append(ans.Answer,
-		common.Must2(dns.NewRR("google.com. IN CNAME m.test.google.com")).(dns.RR),
-		common.Must2(dns.NewRR("google.com. IN CNAME fake.google.com")).(dns.RR),
-		common.Must2(dns.NewRR("google.com. IN CNAME m.test.google.com")).(dns.RR),
-		common.Must2(dns.NewRR("google.com. IN CNAME test.google.com")).(dns.RR),
-		common.Must2(dns.NewRR("google.com. IN AAAA 2001::123:8888")).(dns.RR),
-		common.Must2(dns.NewRR("google.com. IN AAAA 2001::123:8844")).(dns.RR),
+		common.Must2(dns.NewRR("google.com. IN CNAME m.test.google.com")),
+		common.Must2(dns.NewRR("google.com. IN CNAME fake.google.com")),
+		common.Must2(dns.NewRR("google.com. IN CNAME m.test.google.com")),
+		common.Must2(dns.NewRR("google.com. IN CNAME test.google.com")),
+		common.Must2(dns.NewRR("google.com. IN AAAA 2001::123:8888")),
+		common.Must2(dns.NewRR("google.com. IN AAAA 2001::123:8844")),
 	)
-	p = append(p, common.Must2(ans.Pack()).([]byte))
+	p = append(p, common.Must2(ans.Pack()))
 
 	tests := []struct {
 		name    string
@@ -51,7 +51,7 @@ func Test_parseResponse(t *testing.T) {
 	}{
 		{
 			"empty",
-			&IPRecord{0, []net.Address(nil), time.Time{}, dnsmessage.RCodeSuccess},
+			&IPRecord{0, []net.IP(nil), time.Time{}, dnsmessage.RCodeSuccess, nil},
 			false,
 		},
 		{
@@ -63,15 +63,16 @@ func Test_parseResponse(t *testing.T) {
 			"a record",
 			&IPRecord{
 				1,
-				[]net.Address{net.ParseAddress("8.8.8.8"), net.ParseAddress("8.8.4.4")},
+				[]net.IP{net.ParseIP("8.8.8.8"), net.ParseIP("8.8.4.4")},
 				time.Time{},
 				dnsmessage.RCodeSuccess,
+				nil,
 			},
 			false,
 		},
 		{
 			"aaaa record",
-			&IPRecord{2, []net.Address{net.ParseAddress("2001::123:8888"), net.ParseAddress("2001::123:8844")}, time.Time{}, dnsmessage.RCodeSuccess},
+			&IPRecord{2, []net.IP{net.ParseIP("2001::123:8888"), net.ParseIP("2001::123:8844")}, time.Time{}, dnsmessage.RCodeSuccess, nil},
 			false,
 		},
 	}
@@ -84,8 +85,9 @@ func Test_parseResponse(t *testing.T) {
 			}
 
 			if got != nil {
-				// reset the time
+				// reset the time and RawHeader
 				got.Expire = time.Time{}
+				got.RawHeader = nil
 			}
 			if cmp.Diff(got, tt.want) != "" {
 				t.Error(cmp.Diff(got, tt.want))
@@ -154,7 +156,7 @@ func Test_genEDNS0Options(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			if got := genEDNS0Options(tt.args.clientIP); got == nil {
+			if got := genEDNS0Options(tt.args.clientIP, 0); got == nil {
 				t.Errorf("genEDNS0Options() = %v, want %v", got, tt.want)
 			}
 		})

app/dns/hosts.go

@@ -2,6 +2,7 @@ package dns
 
 import (
 	"context"
+	"strconv"
 
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
@@ -32,7 +33,15 @@ func NewStaticHosts(hosts []*Config_HostMapping) (*StaticHosts, error) {
 		ips := make([]net.Address, 0, len(mapping.Ip)+1)
 		switch {
 		case len(mapping.ProxiedDomain) > 0:
-			ips = append(ips, net.DomainAddress(mapping.ProxiedDomain))
+			if mapping.ProxiedDomain[0] == '#' {
+				rcode, err := strconv.Atoi(mapping.ProxiedDomain[1:])
+				if err != nil {
+					return nil, err
+				}
+				ips = append(ips, dns.RCodeError(rcode))
+			} else {
+				ips = append(ips, net.DomainAddress(mapping.ProxiedDomain))
+			}
 		case len(mapping.Ip) > 0:
 			for _, ip := range mapping.Ip {
 				addr := net.IPAddress(ip)
@@ -41,8 +50,6 @@ func NewStaticHosts(hosts []*Config_HostMapping) (*StaticHosts, error) {
 				}
 				ips = append(ips, addr)
 			}
-		default:
-			return nil, errors.New("neither IP address nor proxied domain specified for domain: ", mapping.Domain).AtWarning()
 		}
 
 		sh.ips[id] = ips
@@ -61,33 +68,51 @@ func filterIP(ips []net.Address, option dns.IPOption) []net.Address {
 	return filtered
 }
 
-func (h *StaticHosts) lookupInternal(domain string) []net.Address {
-	var ips []net.Address
+func (h *StaticHosts) lookupInternal(domain string) ([]net.Address, error) {
+	ips := make([]net.Address, 0)
+	found := false
 	for _, id := range h.matchers.Match(domain) {
+		for _, v := range h.ips[id] {
+			if err, ok := v.(dns.RCodeError); ok {
+				if uint16(err) == 0 {
+					return nil, dns.ErrEmptyResponse
+				}
+				return nil, err
+			}
+		}
 		ips = append(ips, h.ips[id]...)
+		found = true
 	}
-	return ips
+	if !found {
+		return nil, nil
+	}
+	return ips, nil
 }
 
-func (h *StaticHosts) lookup(domain string, option dns.IPOption, maxDepth int) []net.Address {
-	switch addrs := h.lookupInternal(domain); {
+func (h *StaticHosts) lookup(domain string, option dns.IPOption, maxDepth int) ([]net.Address, error) {
+	switch addrs, err := h.lookupInternal(domain); {
+	case err != nil:
+		return nil, err
 	case len(addrs) == 0: // Not recorded in static hosts, return nil
-		return nil
+		return addrs, nil
 	case len(addrs) == 1 && addrs[0].Family().IsDomain(): // Try to unwrap domain
 		errors.LogDebug(context.Background(), "found replaced domain: ", domain, " -> ", addrs[0].Domain(), ". Try to unwrap it")
 		if maxDepth > 0 {
-			unwrapped := h.lookup(addrs[0].Domain(), option, maxDepth-1)
+			unwrapped, err := h.lookup(addrs[0].Domain(), option, maxDepth-1)
+			if err != nil {
+				return nil, err
+			}
 			if unwrapped != nil {
-				return unwrapped
+				return unwrapped, nil
 			}
 		}
-		return addrs
+		return addrs, nil
 	default: // IP record found, return a non-nil IP array
-		return filterIP(addrs, option)
+		return filterIP(addrs, option), nil
 	}
 }
 
 // Lookup returns IP addresses or proxied domain for the given domain, if exists in this StaticHosts.
-func (h *StaticHosts) Lookup(domain string, option dns.IPOption) []net.Address {
+func (h *StaticHosts) Lookup(domain string, option dns.IPOption) ([]net.Address, error) {
 	return h.lookup(domain, option, 5)
 }

app/dns/hosts_test.go

@@ -12,6 +12,11 @@ import (
 
 func TestStaticHosts(t *testing.T) {
 	pb := []*Config_HostMapping{
+		{
+			Type:          DomainMatchingType_Subdomain,
+			Domain:        "lan",
+			ProxiedDomain: "#3",
+		},
 		{
 			Type:   DomainMatchingType_Full,
 			Domain: "example.com",
@@ -54,7 +59,14 @@ func TestStaticHosts(t *testing.T) {
 	common.Must(err)
 
 	{
-		ips := hosts.Lookup("example.com", dns.IPOption{
+		_, err := hosts.Lookup("example.com.lan", dns.IPOption{})
+		if dns.RCodeFromError(err) != 3 {
+			t.Error(err)
+		}
+	}
+
+	{
+		ips, _ := hosts.Lookup("example.com", dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 		})
@@ -67,7 +79,7 @@ func TestStaticHosts(t *testing.T) {
 	}
 
 	{
-		domain := hosts.Lookup("proxy.xray.com", dns.IPOption{
+		domain, _ := hosts.Lookup("proxy.xray.com", dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: false,
 		})
@@ -80,7 +92,7 @@ func TestStaticHosts(t *testing.T) {
 	}
 
 	{
-		domain := hosts.Lookup("proxy2.xray.com", dns.IPOption{
+		domain, _ := hosts.Lookup("proxy2.xray.com", dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: false,
 		})
@@ -93,7 +105,7 @@ func TestStaticHosts(t *testing.T) {
 	}
 
 	{
-		ips := hosts.Lookup("www.example.cn", dns.IPOption{
+		ips, _ := hosts.Lookup("www.example.cn", dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 		})
@@ -106,7 +118,7 @@ func TestStaticHosts(t *testing.T) {
 	}
 
 	{
-		ips := hosts.Lookup("baidu.com", dns.IPOption{
+		ips, _ := hosts.Lookup("baidu.com", dns.IPOption{
 			IPv4Enable: false,
 			IPv6Enable: true,
 		})

app/dns/nameserver.go

@@ -9,6 +9,7 @@ import (
 	"github.com/xtls/xray-core/app/router"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/session"
 	"github.com/xtls/xray-core/common/strmatcher"
 	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/dns"
@@ -20,22 +21,27 @@ type Server interface {
 	// Name of the Client.
 	Name() string
 	// QueryIP sends IP queries to its configured server.
-	QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns.IPOption, disableCache bool) ([]net.IP, error)
+	QueryIP(ctx context.Context, domain string, option dns.IPOption) ([]net.IP, uint32, error)
 }
 
 // Client is the interface for DNS client.
 type Client struct {
-	server       Server
-	clientIP     net.IP
-	skipFallback bool
-	domains      []string
-	expectIPs    []*router.GeoIPMatcher
+	server        Server
+	skipFallback  bool
+	domains       []string
+	expectedIPs   []*router.GeoIPMatcher
+	unexpectedIPs []*router.GeoIPMatcher
+	actPrior      bool
+	actUnprior    bool
+	tag           string
+	timeoutMs     time.Duration
+	finalQuery    bool
+	ipOption      *dns.IPOption
+	checkSystem   bool
 }
 
-var errExpectedIPNonMatch = errors.New("expectIPs not match")
-
 // NewServer creates a name server object according to the network destination url.
-func NewServer(ctx context.Context, dest net.Destination, dispatcher routing.Dispatcher, queryStrategy QueryStrategy) (Server, error) {
+func NewServer(ctx context.Context, dest net.Destination, dispatcher routing.Dispatcher, disableCache bool, clientIP net.IP) (Server, error) {
 	if address := dest.Address; address.Family().IsDomain() {
 		u, err := url.Parse(address.Domain())
 		if err != nil {
@@ -44,21 +50,28 @@ func NewServer(ctx context.Context, dest net.Destination, dispatcher routing.Dis
 		switch {
 		case strings.EqualFold(u.String(), "localhost"):
 			return NewLocalNameServer(), nil
-		case strings.EqualFold(u.Scheme, "https"): // DOH Remote mode
-			return NewDoHNameServer(u, dispatcher, queryStrategy)
-		case strings.EqualFold(u.Scheme, "https+local"): // DOH Local mode
-			return NewDoHLocalNameServer(u, queryStrategy), nil
+		case strings.EqualFold(u.Scheme, "https"): // DNS-over-HTTPS Remote mode
+			return NewDoHNameServer(u, dispatcher, false, disableCache, clientIP), nil
+		case strings.EqualFold(u.Scheme, "h2c"): // DNS-over-HTTPS h2c Remote mode
+			return NewDoHNameServer(u, dispatcher, true, disableCache, clientIP), nil
+		case strings.EqualFold(u.Scheme, "https+local"): // DNS-over-HTTPS Local mode
+			return NewDoHNameServer(u, nil, false, disableCache, clientIP), nil
+		case strings.EqualFold(u.Scheme, "h2c+local"): // DNS-over-HTTPS h2c Local mode
+			return NewDoHNameServer(u, nil, true, disableCache, clientIP), nil
 		case strings.EqualFold(u.Scheme, "quic+local"): // DNS-over-QUIC Local mode
-			return NewQUICNameServer(u, queryStrategy)
+			return NewQUICNameServer(u, disableCache, clientIP)
 		case strings.EqualFold(u.Scheme, "tcp"): // DNS-over-TCP Remote mode
-			return NewTCPNameServer(u, dispatcher, queryStrategy)
+			return NewTCPNameServer(u, dispatcher, disableCache, clientIP)
 		case strings.EqualFold(u.Scheme, "tcp+local"): // DNS-over-TCP Local mode
-			return NewTCPLocalNameServer(u, queryStrategy)
+			return NewTCPLocalNameServer(u, disableCache, clientIP)
 		case strings.EqualFold(u.String(), "fakedns"):
 			var fd dns.FakeDNSEngine
-			core.RequireFeatures(ctx, func(fdns dns.FakeDNSEngine) { // FakeDNSEngine is optional
+			err = core.RequireFeatures(ctx, func(fdns dns.FakeDNSEngine) {
 				fd = fdns
 			})
+			if err != nil {
+				return nil, err
+			}
 			return NewFakeDNSServer(fd), nil
 		}
 	}
@@ -66,7 +79,7 @@ func NewServer(ctx context.Context, dest net.Destination, dispatcher routing.Dis
 		dest.Network = net.Network_UDP
 	}
 	if dest.Network == net.Network_UDP { // UDP classic DNS mode
-		return NewClassicNameServer(dest, dispatcher, queryStrategy), nil
+		return NewClassicNameServer(dest, dispatcher, disableCache, clientIP), nil
 	}
 	return nil, errors.New("No available name server could be created from ", dest).AtWarning()
 }
@@ -76,7 +89,9 @@ func NewClient(
 	ctx context.Context,
 	ns *NameServer,
 	clientIP net.IP,
-	container router.GeoIPMatcherContainer,
+	disableCache bool,
+	tag string,
+	ipOption dns.IPOption,
 	matcherInfos *[]*DomainMatcherInfo,
 	updateDomainRule func(strmatcher.Matcher, int, []*DomainMatcherInfo) error,
 ) (*Client, error) {
@@ -84,7 +99,7 @@ func NewClient(
 
 	err := core.RequireFeatures(ctx, func(dispatcher routing.Dispatcher) error {
 		// Create a new server for each client for now
-		server, err := NewServer(ctx, ns.Address.AsDestination(), dispatcher, ns.GetQueryStrategy())
+		server, err := NewServer(ctx, ns.Address.AsDestination(), dispatcher, disableCache, clientIP)
 		if err != nil {
 			return errors.New("failed to create nameserver").Base(err).AtWarning()
 		}
@@ -139,13 +154,23 @@ func NewClient(
 		}
 
 		// Establish expected IPs
-		var matchers []*router.GeoIPMatcher
-		for _, geoip := range ns.Geoip {
-			matcher, err := container.Add(geoip)
+		var expectedMatchers []*router.GeoIPMatcher
+		for _, geoip := range ns.ExpectedGeoip {
+			matcher, err := router.GlobalGeoIPContainer.Add(geoip)
 			if err != nil {
-				return errors.New("failed to create ip matcher").Base(err).AtWarning()
+				return errors.New("failed to create expected ip matcher").Base(err).AtWarning()
 			}
-			matchers = append(matchers, matcher)
+			expectedMatchers = append(expectedMatchers, matcher)
+		}
+
+		// Establish unexpected IPs
+		var unexpectedMatchers []*router.GeoIPMatcher
+		for _, geoip := range ns.UnexpectedGeoip {
+			matcher, err := router.GlobalGeoIPContainer.Add(geoip)
+			if err != nil {
+				return errors.New("failed to create unexpected ip matcher").Base(err).AtWarning()
+			}
+			unexpectedMatchers = append(unexpectedMatchers, matcher)
 		}
 
 		if len(clientIP) > 0 {
@@ -153,15 +178,29 @@ func NewClient(
 			case *net.IPOrDomain_Domain:
 				errors.LogInfo(ctx, "DNS: client ", ns.Address.Address.GetDomain(), " uses clientIP ", clientIP.String())
 			case *net.IPOrDomain_Ip:
-				errors.LogInfo(ctx, "DNS: client ", ns.Address.Address.GetIp(), " uses clientIP ", clientIP.String())
+				errors.LogInfo(ctx, "DNS: client ", net.IP(ns.Address.Address.GetIp()), " uses clientIP ", clientIP.String())
 			}
 		}
 
+		var timeoutMs = 4000 * time.Millisecond
+		if ns.TimeoutMs > 0 {
+			timeoutMs = time.Duration(ns.TimeoutMs) * time.Millisecond
+		}
+
+		checkSystem := ns.QueryStrategy == QueryStrategy_USE_SYS
+
 		client.server = server
-		client.clientIP = clientIP
 		client.skipFallback = ns.SkipFallback
 		client.domains = rules
-		client.expectIPs = matchers
+		client.expectedIPs = expectedMatchers
+		client.unexpectedIPs = unexpectedMatchers
+		client.actPrior = ns.ActPrior
+		client.actUnprior = ns.ActUnprior
+		client.tag = tag
+		client.timeoutMs = timeoutMs
+		client.finalQuery = ns.FinalQuery
+		client.ipOption = &ipOption
+		client.checkSystem = checkSystem
 		return nil
 	})
 	return client, err
@@ -172,43 +211,79 @@ func (c *Client) Name() string {
 	return c.server.Name()
 }
 
+func (c *Client) IsFinalQuery() bool {
+	return c.finalQuery
+}
+
 // QueryIP sends DNS query to the name server with the client's IP.
-func (c *Client) QueryIP(ctx context.Context, domain string, option dns.IPOption, disableCache bool) ([]net.IP, error) {
-	ctx, cancel := context.WithTimeout(ctx, 4*time.Second)
-	ips, err := c.server.QueryIP(ctx, domain, c.clientIP, option, disableCache)
+func (c *Client) QueryIP(ctx context.Context, domain string, option dns.IPOption) ([]net.IP, uint32, error) {
+	if c.checkSystem {
+		supportIPv4, supportIPv6 := checkSystemNetwork()
+		option.IPv4Enable = option.IPv4Enable && supportIPv4
+		option.IPv6Enable = option.IPv6Enable && supportIPv6
+	} else {
+		option.IPv4Enable = option.IPv4Enable && c.ipOption.IPv4Enable
+		option.IPv6Enable = option.IPv6Enable && c.ipOption.IPv6Enable
+	}
+
+	if !option.IPv4Enable && !option.IPv6Enable {
+		return nil, 0, dns.ErrEmptyResponse
+	}
+
+	ctx, cancel := context.WithTimeout(ctx, c.timeoutMs)
+	ctx = session.ContextWithInbound(ctx, &session.Inbound{Tag: c.tag})
+	ips, ttl, err := c.server.QueryIP(ctx, domain, option)
 	cancel()
 
 	if err != nil {
-		return ips, err
+		return nil, 0, err
 	}
-	return c.MatchExpectedIPs(domain, ips)
-}
 
-// MatchExpectedIPs matches queried domain IPs with expected IPs and returns matched ones.
-func (c *Client) MatchExpectedIPs(domain string, ips []net.IP) ([]net.IP, error) {
-	if len(c.expectIPs) == 0 {
-		return ips, nil
+	if len(ips) == 0 {
+		return nil, 0, dns.ErrEmptyResponse
 	}
-	newIps := []net.IP{}
-	for _, ip := range ips {
-		for _, matcher := range c.expectIPs {
-			if matcher.Match(ip) {
-				newIps = append(newIps, ip)
-				break
-			}
+
+	if len(c.expectedIPs) > 0 && !c.actPrior {
+		ips = router.MatchIPs(c.expectedIPs, ips, false)
+		errors.LogDebug(context.Background(), "domain ", domain, " expectedIPs ", ips, " matched at server ", c.Name())
+		if len(ips) == 0 {
+			return nil, 0, dns.ErrEmptyResponse
 		}
 	}
-	if len(newIps) == 0 {
-		return nil, errExpectedIPNonMatch
+
+	if len(c.unexpectedIPs) > 0 && !c.actUnprior {
+		ips = router.MatchIPs(c.unexpectedIPs, ips, true)
+		errors.LogDebug(context.Background(), "domain ", domain, " unexpectedIPs ", ips, " matched at server ", c.Name())
+		if len(ips) == 0 {
+			return nil, 0, dns.ErrEmptyResponse
+		}
 	}
-	errors.LogDebug(context.Background(), "domain ", domain, " expectIPs ", newIps, " matched at server ", c.Name())
-	return newIps, nil
+
+	if len(c.expectedIPs) > 0 && c.actPrior {
+		ipsNew := router.MatchIPs(c.expectedIPs, ips, false)
+		if len(ipsNew) > 0 {
+			ips = ipsNew
+			errors.LogDebug(context.Background(), "domain ", domain, " priorIPs ", ips, " matched at server ", c.Name())
+		}
+	}
+
+	if len(c.unexpectedIPs) > 0 && c.actUnprior {
+		ipsNew := router.MatchIPs(c.unexpectedIPs, ips, true)
+		if len(ipsNew) > 0 {
+			ips = ipsNew
+			errors.LogDebug(context.Background(), "domain ", domain, " unpriorIPs ", ips, " matched at server ", c.Name())
+		}
+	}
+
+	return ips, ttl, nil
 }
 
 func ResolveIpOptionOverride(queryStrategy QueryStrategy, ipOption dns.IPOption) dns.IPOption {
 	switch queryStrategy {
 	case QueryStrategy_USE_IP:
 		return ipOption
+	case QueryStrategy_USE_SYS:
+		return ipOption
 	case QueryStrategy_USE_IP4:
 		return dns.IPOption{
 			IPv4Enable: ipOption.IPv4Enable,

app/dns/nameserver_doh.go

@@ -3,237 +3,136 @@ package dns
 import (
 	"bytes"
 	"context"
+	"crypto/tls"
+	go_errors "errors"
 	"fmt"
 	"io"
 	"net/http"
 	"net/url"
-	"sync"
-	"sync/atomic"
+	"strings"
 	"time"
 
+	utls "github.com/refraction-networking/utls"
 	"github.com/xtls/xray-core/common"
+	"github.com/xtls/xray-core/common/crypto"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/log"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/net/cnc"
 	"github.com/xtls/xray-core/common/protocol/dns"
 	"github.com/xtls/xray-core/common/session"
-	"github.com/xtls/xray-core/common/signal/pubsub"
-	"github.com/xtls/xray-core/common/task"
 	dns_feature "github.com/xtls/xray-core/features/dns"
 	"github.com/xtls/xray-core/features/routing"
 	"github.com/xtls/xray-core/transport/internet"
-	"golang.org/x/net/dns/dnsmessage"
+	"golang.org/x/net/http2"
 )
 
 // DoHNameServer implemented DNS over HTTPS (RFC8484) Wire Format,
 // which is compatible with traditional dns over udp(RFC1035),
 // thus most of the DOH implementation is copied from udpns.go
 type DoHNameServer struct {
-	dispatcher routing.Dispatcher
-	sync.RWMutex
-	ips           map[string]*record
-	pub           *pubsub.Service
-	cleanup       *task.Periodic
-	reqID         uint32
-	httpClient    *http.Client
-	dohURL        string
-	name          string
-	queryStrategy QueryStrategy
+	cacheController *CacheController
+	httpClient      *http.Client
+	dohURL          string
+	clientIP        net.IP
 }
 
-// NewDoHNameServer creates DOH server object for remote resolving.
-func NewDoHNameServer(url *url.URL, dispatcher routing.Dispatcher, queryStrategy QueryStrategy) (*DoHNameServer, error) {
-	errors.LogInfo(context.Background(), "DNS: created Remote DOH client for ", url.String())
-	s := baseDOHNameServer(url, "DOH", queryStrategy)
-
-	s.dispatcher = dispatcher
-	tr := &http.Transport{
-		MaxIdleConns:        30,
-		IdleConnTimeout:     90 * time.Second,
-		TLSHandshakeTimeout: 30 * time.Second,
-		ForceAttemptHTTP2:   true,
-		DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
-			dest, err := net.ParseDestination(network + ":" + addr)
-			if err != nil {
-				return nil, err
-			}
-			link, err := s.dispatcher.Dispatch(toDnsContext(ctx, s.dohURL), dest)
-			select {
-			case <-ctx.Done():
-				return nil, ctx.Err()
-			default:
-
-			}
-			if err != nil {
-				return nil, err
-			}
-
-			cc := common.ChainedClosable{}
-			if cw, ok := link.Writer.(common.Closable); ok {
-				cc = append(cc, cw)
-			}
-			if cr, ok := link.Reader.(common.Closable); ok {
-				cc = append(cc, cr)
-			}
-			return cnc.NewConnection(
-				cnc.ConnectionInputMulti(link.Writer),
-				cnc.ConnectionOutputMulti(link.Reader),
-				cnc.ConnectionOnClose(cc),
-			), nil
-		},
-	}
-	s.httpClient = &http.Client{
-		Timeout:   time.Second * 180,
-		Transport: tr,
-	}
-
-	return s, nil
-}
-
-// NewDoHLocalNameServer creates DOH client object for local resolving
-func NewDoHLocalNameServer(url *url.URL, queryStrategy QueryStrategy) *DoHNameServer {
+// NewDoHNameServer creates DOH/DOHL client object for remote/local resolving.
+func NewDoHNameServer(url *url.URL, dispatcher routing.Dispatcher, h2c bool, disableCache bool, clientIP net.IP) *DoHNameServer {
 	url.Scheme = "https"
-	s := baseDOHNameServer(url, "DOHL", queryStrategy)
-	tr := &http.Transport{
-		IdleConnTimeout:   90 * time.Second,
-		ForceAttemptHTTP2: true,
-		DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
-			dest, err := net.ParseDestination(network + ":" + addr)
-			if err != nil {
-				return nil, err
-			}
-			conn, err := internet.DialSystem(ctx, dest, nil)
-			log.Record(&log.AccessMessage{
-				From:   "DNS",
-				To:     s.dohURL,
-				Status: log.AccessAccepted,
-				Detour: "local",
-			})
-			if err != nil {
-				return nil, err
-			}
-			return conn, nil
-		},
+	mode := "DOH"
+	if dispatcher == nil {
+		mode = "DOHL"
+	}
+	errors.LogInfo(context.Background(), "DNS: created ", mode, " client for ", url.String(), ", with h2c ", h2c)
+	s := &DoHNameServer{
+		cacheController: NewCacheController(mode+"//"+url.Host, disableCache),
+		dohURL:          url.String(),
+		clientIP:        clientIP,
 	}
 	s.httpClient = &http.Client{
-		Timeout:   time.Second * 180,
-		Transport: tr,
-	}
-	errors.LogInfo(context.Background(), "DNS: created Local DOH client for ", url.String())
-	return s
-}
-
-func baseDOHNameServer(url *url.URL, prefix string, queryStrategy QueryStrategy) *DoHNameServer {
-	s := &DoHNameServer{
-		ips:           make(map[string]*record),
-		pub:           pubsub.NewService(),
-		name:          prefix + "//" + url.Host,
-		dohURL:        url.String(),
-		queryStrategy: queryStrategy,
-	}
-	s.cleanup = &task.Periodic{
-		Interval: time.Minute,
-		Execute:  s.Cleanup,
+		Transport: &http2.Transport{
+			IdleConnTimeout: net.ConnIdleTimeout,
+			ReadIdleTimeout: net.ChromeH2KeepAlivePeriod,
+			DialTLSContext: func(ctx context.Context, network, addr string, cfg *tls.Config) (net.Conn, error) {
+				dest, err := net.ParseDestination(network + ":" + addr)
+				if err != nil {
+					return nil, err
+				}
+				var conn net.Conn
+				if dispatcher != nil {
+					dnsCtx := toDnsContext(ctx, s.dohURL)
+					if h2c {
+						dnsCtx = session.ContextWithMitmAlpn11(dnsCtx, false) // for insurance
+						dnsCtx = session.ContextWithMitmServerName(dnsCtx, url.Hostname())
+					}
+					link, err := dispatcher.Dispatch(dnsCtx, dest)
+					select {
+					case <-ctx.Done():
+						return nil, ctx.Err()
+					default:
+					}
+					if err != nil {
+						return nil, err
+					}
+					cc := common.ChainedClosable{}
+					if cw, ok := link.Writer.(common.Closable); ok {
+						cc = append(cc, cw)
+					}
+					if cr, ok := link.Reader.(common.Closable); ok {
+						cc = append(cc, cr)
+					}
+					conn = cnc.NewConnection(
+						cnc.ConnectionInputMulti(link.Writer),
+						cnc.ConnectionOutputMulti(link.Reader),
+						cnc.ConnectionOnClose(cc),
+					)
+				} else {
+					log.Record(&log.AccessMessage{
+						From:   "DNS",
+						To:     s.dohURL,
+						Status: log.AccessAccepted,
+						Detour: "local",
+					})
+					conn, err = internet.DialSystem(ctx, dest, nil)
+					if err != nil {
+						return nil, err
+					}
+				}
+				if !h2c {
+					conn = utls.UClient(conn, &utls.Config{ServerName: url.Hostname()}, utls.HelloChrome_Auto)
+					if err := conn.(*utls.UConn).HandshakeContext(ctx); err != nil {
+						return nil, err
+					}
+				}
+				return conn, nil
+			},
+		},
 	}
 	return s
 }
 
 // Name implements Server.
 func (s *DoHNameServer) Name() string {
-	return s.name
-}
-
-// Cleanup clears expired items from cache
-func (s *DoHNameServer) Cleanup() error {
-	now := time.Now()
-	s.Lock()
-	defer s.Unlock()
-
-	if len(s.ips) == 0 {
-		return errors.New("nothing to do. stopping...")
-	}
-
-	for domain, record := range s.ips {
-		if record.A != nil && record.A.Expire.Before(now) {
-			record.A = nil
-		}
-		if record.AAAA != nil && record.AAAA.Expire.Before(now) {
-			record.AAAA = nil
-		}
-
-		if record.A == nil && record.AAAA == nil {
-			errors.LogDebug(context.Background(), s.name, " cleanup ", domain)
-			delete(s.ips, domain)
-		} else {
-			s.ips[domain] = record
-		}
-	}
-
-	if len(s.ips) == 0 {
-		s.ips = make(map[string]*record)
-	}
-
-	return nil
-}
-
-func (s *DoHNameServer) updateIP(req *dnsRequest, ipRec *IPRecord) {
-	elapsed := time.Since(req.start)
-
-	s.Lock()
-	rec, found := s.ips[req.domain]
-	if !found {
-		rec = &record{}
-	}
-	updated := false
-
-	switch req.reqType {
-	case dnsmessage.TypeA:
-		if isNewer(rec.A, ipRec) {
-			rec.A = ipRec
-			updated = true
-		}
-	case dnsmessage.TypeAAAA:
-		addr := make([]net.Address, 0, len(ipRec.IP))
-		for _, ip := range ipRec.IP {
-			if len(ip.IP()) == net.IPv6len {
-				addr = append(addr, ip)
-			}
-		}
-		ipRec.IP = addr
-		if isNewer(rec.AAAA, ipRec) {
-			rec.AAAA = ipRec
-			updated = true
-		}
-	}
-	errors.LogInfo(context.Background(), s.name, " got answer: ", req.domain, " ", req.reqType, " -> ", ipRec.IP, " ", elapsed)
-
-	if updated {
-		s.ips[req.domain] = rec
-	}
-	switch req.reqType {
-	case dnsmessage.TypeA:
-		s.pub.Publish(req.domain+"4", nil)
-	case dnsmessage.TypeAAAA:
-		s.pub.Publish(req.domain+"6", nil)
-	}
-	s.Unlock()
-	common.Must(s.cleanup.Start())
+	return s.cacheController.name
 }
 
 func (s *DoHNameServer) newReqID() uint16 {
-	return uint16(atomic.AddUint32(&s.reqID, 1))
+	return 0
 }
 
-func (s *DoHNameServer) sendQuery(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption) {
-	errors.LogInfo(ctx, s.name, " querying: ", domain)
+func (s *DoHNameServer) sendQuery(ctx context.Context, noResponseErrCh chan<- error, domain string, option dns_feature.IPOption) {
+	errors.LogInfo(ctx, s.Name(), " querying: ", domain)
 
-	if s.name+"." == "DOH//"+domain {
-		errors.LogError(ctx, s.name, " tries to resolve itself! Use IP or set \"hosts\" instead.")
+	if s.Name()+"." == "DOH//"+domain {
+		errors.LogError(ctx, s.Name(), " tries to resolve itself! Use IP or set \"hosts\" instead.")
+		noResponseErrCh <- errors.New("tries to resolve itself!", s.Name())
 		return
 	}
 
-	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(clientIP))
+	// As we don't want our traffic pattern looks like DoH, we use Random-Length Padding instead of Block-Length Padding recommended in RFC 8467
+	// Although DoH server like 1.1.1.1 will pad the response to Block-Length 468, at least it is better than no padding for response at all
+	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(s.clientIP, int(crypto.RandBetween(100, 300))))
 
 	var deadline time.Time
 	if d, ok := ctx.Deadline(); ok {
@@ -268,19 +167,22 @@ func (s *DoHNameServer) sendQuery(ctx context.Context, domain string, clientIP n
 			b, err := dns.PackMessage(r.msg)
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "failed to pack dns query for ", domain)
+				noResponseErrCh <- err
 				return
 			}
 			resp, err := s.dohHTTPSContext(dnsCtx, b.Bytes())
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "failed to retrieve response for ", domain)
+				noResponseErrCh <- err
 				return
 			}
 			rec, err := parseResponse(resp)
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "failed to handle DOH response for ", domain)
+				noResponseErrCh <- err
 				return
 			}
-			s.updateIP(r, rec)
+			s.cacheController.updateIP(r, rec)
 		}(req)
 	}
 }
@@ -295,6 +197,8 @@ func (s *DoHNameServer) dohHTTPSContext(ctx context.Context, b []byte) ([]byte,
 	req.Header.Add("Accept", "application/dns-message")
 	req.Header.Add("Content-Type", "application/dns-message")
 
+	req.Header.Set("X-Padding", strings.Repeat("X", int(crypto.RandBetween(100, 1000))))
+
 	hc := s.httpClient
 
 	resp, err := hc.Do(req.WithContext(ctx))
@@ -311,107 +215,50 @@ func (s *DoHNameServer) dohHTTPSContext(ctx context.Context, b []byte) ([]byte,
 	return io.ReadAll(resp.Body)
 }
 
-func (s *DoHNameServer) findIPsForDomain(domain string, option dns_feature.IPOption) ([]net.IP, error) {
-	s.RLock()
-	record, found := s.ips[domain]
-	s.RUnlock()
-
-	if !found {
-		return nil, errRecordNotFound
-	}
-
-	var err4 error
-	var err6 error
-	var ips []net.Address
-	var ip6 []net.Address
-
-	if option.IPv4Enable {
-		ips, err4 = record.A.getIPs()
-	}
-
-	if option.IPv6Enable {
-		ip6, err6 = record.AAAA.getIPs()
-		ips = append(ips, ip6...)
-	}
-
-	if len(ips) > 0 {
-		return toNetIP(ips)
-	}
-
-	if err4 != nil {
-		return nil, err4
-	}
-
-	if err6 != nil {
-		return nil, err6
-	}
-
-	if (option.IPv4Enable && record.A != nil) || (option.IPv6Enable && record.AAAA != nil) {
-		return nil, dns_feature.ErrEmptyResponse
-	}
-
-	return nil, errRecordNotFound
-}
-
 // QueryIP implements Server.
-func (s *DoHNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, disableCache bool) ([]net.IP, error) { // nolint: dupl
+func (s *DoHNameServer) QueryIP(ctx context.Context, domain string, option dns_feature.IPOption) ([]net.IP, uint32, error) { // nolint: dupl
 	fqdn := Fqdn(domain)
-	option = ResolveIpOptionOverride(s.queryStrategy, option)
-	if !option.IPv4Enable && !option.IPv6Enable {
-		return nil, dns_feature.ErrEmptyResponse
-	}
+	sub4, sub6 := s.cacheController.registerSubscribers(fqdn, option)
+	defer closeSubscribers(sub4, sub6)
 
-	if disableCache {
-		errors.LogDebug(ctx, "DNS cache is disabled. Querying IP for ", domain, " at ", s.name)
+	if s.cacheController.disableCache {
+		errors.LogDebug(ctx, "DNS cache is disabled. Querying IP for ", domain, " at ", s.Name())
 	} else {
-		ips, err := s.findIPsForDomain(fqdn, option)
-		if err == nil || err == dns_feature.ErrEmptyResponse {
-			errors.LogDebugInner(ctx, err, s.name, " cache HIT ", domain, " -> ", ips)
-			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSCacheHit, Elapsed: 0, Error: err})
-			return ips, err
+		ips, ttl, err := s.cacheController.findIPsForDomain(fqdn, option)
+		if !go_errors.Is(err, errRecordNotFound) {
+			errors.LogDebugInner(ctx, err, s.Name(), " cache HIT ", domain, " -> ", ips)
+			log.Record(&log.DNSLog{Server: s.Name(), Domain: domain, Result: ips, Status: log.DNSCacheHit, Elapsed: 0, Error: err})
+			return ips, ttl, err
 		}
 	}
 
-	// ipv4 and ipv6 belong to different subscription groups
-	var sub4, sub6 *pubsub.Subscriber
-	if option.IPv4Enable {
-		sub4 = s.pub.Subscribe(fqdn + "4")
-		defer sub4.Close()
-	}
-	if option.IPv6Enable {
-		sub6 = s.pub.Subscribe(fqdn + "6")
-		defer sub6.Close()
-	}
-	done := make(chan interface{})
-	go func() {
-		if sub4 != nil {
-			select {
-			case <-sub4.Wait():
-			case <-ctx.Done():
-			}
-		}
-		if sub6 != nil {
-			select {
-			case <-sub6.Wait():
-			case <-ctx.Done():
-			}
-		}
-		close(done)
-	}()
-	s.sendQuery(ctx, fqdn, clientIP, option)
+	noResponseErrCh := make(chan error, 2)
+	s.sendQuery(ctx, noResponseErrCh, fqdn, option)
 	start := time.Now()
 
-	for {
-		ips, err := s.findIPsForDomain(fqdn, option)
-		if err != errRecordNotFound {
-			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSQueried, Elapsed: time.Since(start), Error: err})
-			return ips, err
-		}
-
+	if sub4 != nil {
 		select {
 		case <-ctx.Done():
-			return nil, ctx.Err()
-		case <-done:
+			return nil, 0, ctx.Err()
+		case err := <-noResponseErrCh:
+			return nil, 0, err
+		case <-sub4.Wait():
+			sub4.Close()
 		}
 	}
+	if sub6 != nil {
+		select {
+		case <-ctx.Done():
+			return nil, 0, ctx.Err()
+		case err := <-noResponseErrCh:
+			return nil, 0, err
+		case <-sub6.Wait():
+			sub6.Close()
+		}
+	}
+
+	ips, ttl, err := s.cacheController.findIPsForDomain(fqdn, option)
+	log.Record(&log.DNSLog{Server: s.Name(), Domain: domain, Result: ips, Status: log.DNSQueried, Elapsed: time.Since(start), Error: err})
+	return ips, ttl, err
+
 }

app/dns/nameserver_doh_test.go

@@ -17,12 +17,12 @@ func TestDOHNameServer(t *testing.T) {
 	url, err := url.Parse("https+local://1.1.1.1/dns-query")
 	common.Must(err)
 
-	s := NewDoHLocalNameServer(url, QueryStrategy_USE_IP)
+	s := NewDoHNameServer(url, nil, false, false, net.IP(nil))
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
+	ips, _, err := s.QueryIP(ctx, "google.com", dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
-	}, false)
+	})
 	cancel()
 	common.Must(err)
 	if len(ips) == 0 {
@@ -34,12 +34,12 @@ func TestDOHNameServerWithCache(t *testing.T) {
 	url, err := url.Parse("https+local://1.1.1.1/dns-query")
 	common.Must(err)
 
-	s := NewDoHLocalNameServer(url, QueryStrategy_USE_IP)
+	s := NewDoHNameServer(url, nil, false, false, net.IP(nil))
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
+	ips, _, err := s.QueryIP(ctx, "google.com", dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
-	}, false)
+	})
 	cancel()
 	common.Must(err)
 	if len(ips) == 0 {
@@ -47,10 +47,10 @@ func TestDOHNameServerWithCache(t *testing.T) {
 	}
 
 	ctx2, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips2, err := s.QueryIP(ctx2, "google.com", net.IP(nil), dns_feature.IPOption{
+	ips2, _, err := s.QueryIP(ctx2, "google.com", dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
-	}, true)
+	})
 	cancel()
 	common.Must(err)
 	if r := cmp.Diff(ips2, ips); r != "" {
@@ -62,12 +62,12 @@ func TestDOHNameServerWithIPv4Override(t *testing.T) {
 	url, err := url.Parse("https+local://1.1.1.1/dns-query")
 	common.Must(err)
 
-	s := NewDoHLocalNameServer(url, QueryStrategy_USE_IP4)
+	s := NewDoHNameServer(url, nil, false, false, net.IP(nil))
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
+	ips, _, err := s.QueryIP(ctx, "google.com", dns_feature.IPOption{
 		IPv4Enable: true,
-		IPv6Enable: true,
-	}, false)
+		IPv6Enable: false,
+	})
 	cancel()
 	common.Must(err)
 	if len(ips) == 0 {
@@ -85,12 +85,12 @@ func TestDOHNameServerWithIPv6Override(t *testing.T) {
 	url, err := url.Parse("https+local://1.1.1.1/dns-query")
 	common.Must(err)
 
-	s := NewDoHLocalNameServer(url, QueryStrategy_USE_IP6)
+	s := NewDoHNameServer(url, nil, false, false, net.IP(nil))
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
-		IPv4Enable: true,
+	ips, _, err := s.QueryIP(ctx, "google.com", dns_feature.IPOption{
+		IPv4Enable: false,
 		IPv6Enable: true,
-	}, false)
+	})
 	cancel()
 	common.Must(err)
 	if len(ips) == 0 {

app/dns/nameserver_fakedns.go

@@ -20,9 +20,9 @@ func (FakeDNSServer) Name() string {
 	return "FakeDNS"
 }
 
-func (f *FakeDNSServer) QueryIP(ctx context.Context, domain string, _ net.IP, opt dns.IPOption, _ bool) ([]net.IP, error) {
+func (f *FakeDNSServer) QueryIP(ctx context.Context, domain string, opt dns.IPOption) ([]net.IP, uint32, error) {
 	if f.fakeDNSEngine == nil {
-		return nil, errors.New("Unable to locate a fake DNS Engine").AtError()
+		return nil, 0, errors.New("Unable to locate a fake DNS Engine").AtError()
 	}
 
 	var ips []net.Address
@@ -34,13 +34,13 @@ func (f *FakeDNSServer) QueryIP(ctx context.Context, domain string, _ net.IP, op
 
 	netIP, err := toNetIP(ips)
 	if err != nil {
-		return nil, errors.New("Unable to convert IP to net ip").Base(err).AtError()
+		return nil, 0, errors.New("Unable to convert IP to net ip").Base(err).AtError()
 	}
 
 	errors.LogInfo(ctx, f.Name(), " got answer: ", domain, " -> ", ips)
 
 	if len(netIP) > 0 {
-		return netIP, nil
+		return netIP, 1, nil // fakeIP ttl is 1
 	}
-	return nil, dns.ErrEmptyResponse
+	return nil, 0, dns.ErrEmptyResponse
 }

app/dns/nameserver_local.go

@@ -2,7 +2,6 @@ package dns
 
 import (
 	"context"
-	"strings"
 	"time"
 
 	"github.com/xtls/xray-core/common/errors"
@@ -17,16 +16,11 @@ type LocalNameServer struct {
 	client *localdns.Client
 }
 
-const errEmptyResponse = "No address associated with hostname"
-
 // QueryIP implements Server.
-func (s *LocalNameServer) QueryIP(ctx context.Context, domain string, _ net.IP, option dns.IPOption, _ bool) (ips []net.IP, err error) {
-	start := time.Now()
-	ips, err = s.client.LookupIP(domain, option)
+func (s *LocalNameServer) QueryIP(ctx context.Context, domain string, option dns.IPOption) (ips []net.IP, ttl uint32, err error) {
 
-	if err != nil && strings.HasSuffix(err.Error(), errEmptyResponse) {
-		err = dns.ErrEmptyResponse
-	}
+	start := time.Now()
+	ips, ttl, err = s.client.LookupIP(domain, option)
 
 	if len(ips) > 0 {
 		errors.LogInfo(ctx, "Localhost got answer: ", domain, " -> ", ips)
@@ -50,6 +44,6 @@ func NewLocalNameServer() *LocalNameServer {
 }
 
 // NewLocalDNSClient creates localdns client object for directly lookup in system DNS.
-func NewLocalDNSClient() *Client {
-	return &Client{server: NewLocalNameServer()}
+func NewLocalDNSClient(ipOption dns.IPOption) *Client {
+	return &Client{server: NewLocalNameServer(), ipOption: &ipOption}
 }

app/dns/nameserver_local_test.go

@@ -7,18 +7,17 @@ import (
 
 	. "github.com/xtls/xray-core/app/dns"
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/features/dns"
 )
 
 func TestLocalNameServer(t *testing.T) {
 	s := NewLocalNameServer()
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
-	ips, err := s.QueryIP(ctx, "google.com", net.IP{}, dns.IPOption{
+	ips, _, err := s.QueryIP(ctx, "google.com", dns.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
 		FakeEnable: false,
-	}, false)
+	})
 	cancel()
 	common.Must(err)
 	if len(ips) == 0 {

app/dns/nameserver_quic.go

@@ -4,24 +4,20 @@ import (
 	"bytes"
 	"context"
 	"encoding/binary"
+	go_errors "errors"
 	"net/url"
 	"sync"
-	"sync/atomic"
 	"time"
 
 	"github.com/quic-go/quic-go"
-	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/log"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/protocol/dns"
 	"github.com/xtls/xray-core/common/session"
-	"github.com/xtls/xray-core/common/signal/pubsub"
-	"github.com/xtls/xray-core/common/task"
 	dns_feature "github.com/xtls/xray-core/features/dns"
 	"github.com/xtls/xray-core/transport/internet/tls"
-	"golang.org/x/net/dns/dnsmessage"
 	"golang.org/x/net/http2"
 )
 
@@ -34,18 +30,14 @@ const handshakeTimeout = time.Second * 8
 // QUICNameServer implemented DNS over QUIC
 type QUICNameServer struct {
 	sync.RWMutex
-	ips           map[string]*record
-	pub           *pubsub.Service
-	cleanup       *task.Periodic
-	reqID         uint32
-	name          string
-	destination   *net.Destination
-	connection    quic.Connection
-	queryStrategy QueryStrategy
+	cacheController *CacheController
+	destination     *net.Destination
+	connection      *quic.Conn
+	clientIP        net.IP
 }
 
 // NewQUICNameServer creates DNS-over-QUIC client object for local resolving
-func NewQUICNameServer(url *url.URL, queryStrategy QueryStrategy) (*QUICNameServer, error) {
+func NewQUICNameServer(url *url.URL, disableCache bool, clientIP net.IP) (*QUICNameServer, error) {
 	errors.LogInfo(context.Background(), "DNS: created Local DNS-over-QUIC client for ", url.String())
 
 	var err error
@@ -59,15 +51,9 @@ func NewQUICNameServer(url *url.URL, queryStrategy QueryStrategy) (*QUICNameServ
 	dest := net.UDPDestination(net.ParseAddress(url.Hostname()), port)
 
 	s := &QUICNameServer{
-		ips:           make(map[string]*record),
-		pub:           pubsub.NewService(),
-		name:          url.String(),
-		destination:   &dest,
-		queryStrategy: queryStrategy,
-	}
-	s.cleanup = &task.Periodic{
-		Interval: time.Minute,
-		Execute:  s.Cleanup,
+		cacheController: NewCacheController(url.String(), disableCache),
+		destination:     &dest,
+		clientIP:        clientIP,
 	}
 
 	return s, nil
@@ -75,94 +61,17 @@ func NewQUICNameServer(url *url.URL, queryStrategy QueryStrategy) (*QUICNameServ
 
 // Name returns client name
 func (s *QUICNameServer) Name() string {
-	return s.name
-}
-
-// Cleanup clears expired items from cache
-func (s *QUICNameServer) Cleanup() error {
-	now := time.Now()
-	s.Lock()
-	defer s.Unlock()
-
-	if len(s.ips) == 0 {
-		return errors.New("nothing to do. stopping...")
-	}
-
-	for domain, record := range s.ips {
-		if record.A != nil && record.A.Expire.Before(now) {
-			record.A = nil
-		}
-		if record.AAAA != nil && record.AAAA.Expire.Before(now) {
-			record.AAAA = nil
-		}
-
-		if record.A == nil && record.AAAA == nil {
-			errors.LogDebug(context.Background(), s.name, " cleanup ", domain)
-			delete(s.ips, domain)
-		} else {
-			s.ips[domain] = record
-		}
-	}
-
-	if len(s.ips) == 0 {
-		s.ips = make(map[string]*record)
-	}
-
-	return nil
-}
-
-func (s *QUICNameServer) updateIP(req *dnsRequest, ipRec *IPRecord) {
-	elapsed := time.Since(req.start)
-
-	s.Lock()
-	rec, found := s.ips[req.domain]
-	if !found {
-		rec = &record{}
-	}
-	updated := false
-
-	switch req.reqType {
-	case dnsmessage.TypeA:
-		if isNewer(rec.A, ipRec) {
-			rec.A = ipRec
-			updated = true
-		}
-	case dnsmessage.TypeAAAA:
-		addr := make([]net.Address, 0)
-		for _, ip := range ipRec.IP {
-			if len(ip.IP()) == net.IPv6len {
-				addr = append(addr, ip)
-			}
-		}
-		ipRec.IP = addr
-		if isNewer(rec.AAAA, ipRec) {
-			rec.AAAA = ipRec
-			updated = true
-		}
-	}
-	errors.LogInfo(context.Background(), s.name, " got answer: ", req.domain, " ", req.reqType, " -> ", ipRec.IP, " ", elapsed)
-
-	if updated {
-		s.ips[req.domain] = rec
-	}
-	switch req.reqType {
-	case dnsmessage.TypeA:
-		s.pub.Publish(req.domain+"4", nil)
-	case dnsmessage.TypeAAAA:
-		s.pub.Publish(req.domain+"6", nil)
-	}
-	s.Unlock()
-	common.Must(s.cleanup.Start())
+	return s.cacheController.name
 }
 
 func (s *QUICNameServer) newReqID() uint16 {
-	return uint16(atomic.AddUint32(&s.reqID, 1))
+	return 0
 }
 
-func (s *QUICNameServer) sendQuery(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption) {
-	errors.LogInfo(ctx, s.name, " querying: ", domain)
+func (s *QUICNameServer) sendQuery(ctx context.Context, noResponseErrCh chan<- error, domain string, option dns_feature.IPOption) {
+	errors.LogInfo(ctx, s.Name(), " querying: ", domain)
 
-	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(clientIP))
+	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(s.clientIP, 0))
 
 	var deadline time.Time
 	if d, ok := ctx.Deadline(); ok {
@@ -194,23 +103,36 @@ func (s *QUICNameServer) sendQuery(ctx context.Context, domain string, clientIP
 			b, err := dns.PackMessage(r.msg)
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "failed to pack dns query")
+				noResponseErrCh <- err
 				return
 			}
 
 			dnsReqBuf := buf.New()
-			binary.Write(dnsReqBuf, binary.BigEndian, uint16(b.Len()))
-			dnsReqBuf.Write(b.Bytes())
+			err = binary.Write(dnsReqBuf, binary.BigEndian, uint16(b.Len()))
+			if err != nil {
+				errors.LogErrorInner(ctx, err, "binary write failed")
+				noResponseErrCh <- err
+				return
+			}
+			_, err = dnsReqBuf.Write(b.Bytes())
+			if err != nil {
+				errors.LogErrorInner(ctx, err, "buffer write failed")
+				noResponseErrCh <- err
+				return
+			}
 			b.Release()
 
 			conn, err := s.openStream(dnsCtx)
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "failed to open quic connection")
+				noResponseErrCh <- err
 				return
 			}
 
 			_, err = conn.Write(dnsReqBuf.Bytes())
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "failed to send query")
+				noResponseErrCh <- err
 				return
 			}
 
@@ -221,137 +143,84 @@ func (s *QUICNameServer) sendQuery(ctx context.Context, domain string, clientIP
 			n, err := respBuf.ReadFullFrom(conn, 2)
 			if err != nil && n == 0 {
 				errors.LogErrorInner(ctx, err, "failed to read response length")
+				noResponseErrCh <- err
 				return
 			}
 			var length int16
 			err = binary.Read(bytes.NewReader(respBuf.Bytes()), binary.BigEndian, &length)
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "failed to parse response length")
+				noResponseErrCh <- err
 				return
 			}
 			respBuf.Clear()
 			n, err = respBuf.ReadFullFrom(conn, int32(length))
 			if err != nil && n == 0 {
 				errors.LogErrorInner(ctx, err, "failed to read response length")
+				noResponseErrCh <- err
 				return
 			}
 
 			rec, err := parseResponse(respBuf.Bytes())
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "failed to handle response")
+				noResponseErrCh <- err
 				return
 			}
-			s.updateIP(r, rec)
+			s.cacheController.updateIP(r, rec)
 		}(req)
 	}
 }
 
-func (s *QUICNameServer) findIPsForDomain(domain string, option dns_feature.IPOption) ([]net.IP, error) {
-	s.RLock()
-	record, found := s.ips[domain]
-	s.RUnlock()
-
-	if !found {
-		return nil, errRecordNotFound
-	}
-
-	var err4 error
-	var err6 error
-	var ips []net.Address
-	var ip6 []net.Address
-
-	if option.IPv4Enable {
-		ips, err4 = record.A.getIPs()
-	}
-
-	if option.IPv6Enable {
-		ip6, err6 = record.AAAA.getIPs()
-		ips = append(ips, ip6...)
-	}
-
-	if len(ips) > 0 {
-		return toNetIP(ips)
-	}
-
-	if err4 != nil {
-		return nil, err4
-	}
-
-	if err6 != nil {
-		return nil, err6
-	}
-
-	if (option.IPv4Enable && record.A != nil) || (option.IPv6Enable && record.AAAA != nil) {
-		return nil, dns_feature.ErrEmptyResponse
-	}
-
-	return nil, errRecordNotFound
-}
-
 // QueryIP is called from dns.Server->queryIPTimeout
-func (s *QUICNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, disableCache bool) ([]net.IP, error) {
+func (s *QUICNameServer) QueryIP(ctx context.Context, domain string, option dns_feature.IPOption) ([]net.IP, uint32, error) {
 	fqdn := Fqdn(domain)
-	option = ResolveIpOptionOverride(s.queryStrategy, option)
-	if !option.IPv4Enable && !option.IPv6Enable {
-		return nil, dns_feature.ErrEmptyResponse
-	}
+	sub4, sub6 := s.cacheController.registerSubscribers(fqdn, option)
+	defer closeSubscribers(sub4, sub6)
 
-	if disableCache {
-		errors.LogDebug(ctx, "DNS cache is disabled. Querying IP for ", domain, " at ", s.name)
+	if s.cacheController.disableCache {
+		errors.LogDebug(ctx, "DNS cache is disabled. Querying IP for ", domain, " at ", s.Name())
 	} else {
-		ips, err := s.findIPsForDomain(fqdn, option)
-		if err == nil || err == dns_feature.ErrEmptyResponse {
-			errors.LogDebugInner(ctx, err, s.name, " cache HIT ", domain, " -> ", ips)
-			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSCacheHit, Elapsed: 0, Error: err})
-			return ips, err
+		ips, ttl, err := s.cacheController.findIPsForDomain(fqdn, option)
+		if !go_errors.Is(err, errRecordNotFound) {
+			errors.LogDebugInner(ctx, err, s.Name(), " cache HIT ", domain, " -> ", ips)
+			log.Record(&log.DNSLog{Server: s.Name(), Domain: domain, Result: ips, Status: log.DNSCacheHit, Elapsed: 0, Error: err})
+			return ips, ttl, err
 		}
 	}
 
-	// ipv4 and ipv6 belong to different subscription groups
-	var sub4, sub6 *pubsub.Subscriber
-	if option.IPv4Enable {
-		sub4 = s.pub.Subscribe(fqdn + "4")
-		defer sub4.Close()
-	}
-	if option.IPv6Enable {
-		sub6 = s.pub.Subscribe(fqdn + "6")
-		defer sub6.Close()
-	}
-	done := make(chan interface{})
-	go func() {
-		if sub4 != nil {
-			select {
-			case <-sub4.Wait():
-			case <-ctx.Done():
-			}
-		}
-		if sub6 != nil {
-			select {
-			case <-sub6.Wait():
-			case <-ctx.Done():
-			}
-		}
-		close(done)
-	}()
-	s.sendQuery(ctx, fqdn, clientIP, option)
+	noResponseErrCh := make(chan error, 2)
+	s.sendQuery(ctx, noResponseErrCh, fqdn, option)
 	start := time.Now()
 
-	for {
-		ips, err := s.findIPsForDomain(fqdn, option)
-		if err != errRecordNotFound {
-			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSQueried, Elapsed: time.Since(start), Error: err})
-			return ips, err
-		}
-
+	if sub4 != nil {
 		select {
 		case <-ctx.Done():
-			return nil, ctx.Err()
-		case <-done:
+			return nil, 0, ctx.Err()
+		case err := <-noResponseErrCh:
+			return nil, 0, err
+		case <-sub4.Wait():
+			sub4.Close()
 		}
 	}
+	if sub6 != nil {
+		select {
+		case <-ctx.Done():
+			return nil, 0, ctx.Err()
+		case err := <-noResponseErrCh:
+			return nil, 0, err
+		case <-sub6.Wait():
+			sub6.Close()
+		}
+	}
+
+	ips, ttl, err := s.cacheController.findIPsForDomain(fqdn, option)
+	log.Record(&log.DNSLog{Server: s.Name(), Domain: domain, Result: ips, Status: log.DNSQueried, Elapsed: time.Since(start), Error: err})
+	return ips, ttl, err
+
 }
 
-func isActive(s quic.Connection) bool {
+func isActive(s *quic.Conn) bool {
 	select {
 	case <-s.Context().Done():
 		return false
@@ -360,8 +229,8 @@ func isActive(s quic.Connection) bool {
 	}
 }
 
-func (s *QUICNameServer) getConnection() (quic.Connection, error) {
-	var conn quic.Connection
+func (s *QUICNameServer) getConnection() (*quic.Conn, error) {
+	var conn *quic.Conn
 	s.RLock()
 	conn = s.connection
 	if conn != nil && isActive(conn) {
@@ -394,7 +263,7 @@ func (s *QUICNameServer) getConnection() (quic.Connection, error) {
 	return conn, nil
 }
 
-func (s *QUICNameServer) openConnection() (quic.Connection, error) {
+func (s *QUICNameServer) openConnection() (*quic.Conn, error) {
 	tlsConfig := tls.Config{}
 	quicConfig := &quic.Config{
 		HandshakeIdleTimeout: handshakeTimeout,
@@ -414,7 +283,7 @@ func (s *QUICNameServer) openConnection() (quic.Connection, error) {
 	return conn, nil
 }
 
-func (s *QUICNameServer) openStream(ctx context.Context) (quic.Stream, error) {
+func (s *QUICNameServer) openStream(ctx context.Context) (*quic.Stream, error) {
 	conn, err := s.getConnection()
 	if err != nil {
 		return nil, err

app/dns/nameserver_quic_test.go

@@ -16,24 +16,23 @@ import (
 func TestQUICNameServer(t *testing.T) {
 	url, err := url.Parse("quic://dns.adguard-dns.com")
 	common.Must(err)
-	s, err := NewQUICNameServer(url, QueryStrategy_USE_IP)
+	s, err := NewQUICNameServer(url, false, net.IP(nil))
 	common.Must(err)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
-	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns.IPOption{
+	ips, _, err := s.QueryIP(ctx, "google.com", dns.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
-	}, false)
+	})
 	cancel()
 	common.Must(err)
 	if len(ips) == 0 {
 		t.Error("expect some ips, but got 0")
 	}
-
 	ctx2, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips2, err := s.QueryIP(ctx2, "google.com", net.IP(nil), dns.IPOption{
+	ips2, _, err := s.QueryIP(ctx2, "google.com", dns.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
-	}, true)
+	})
 	cancel()
 	common.Must(err)
 	if r := cmp.Diff(ips2, ips); r != "" {
@@ -44,13 +43,13 @@ func TestQUICNameServer(t *testing.T) {
 func TestQUICNameServerWithIPv4Override(t *testing.T) {
 	url, err := url.Parse("quic://dns.adguard-dns.com")
 	common.Must(err)
-	s, err := NewQUICNameServer(url, QueryStrategy_USE_IP4)
+	s, err := NewQUICNameServer(url, false, net.IP(nil))
 	common.Must(err)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
-	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns.IPOption{
+	ips, _, err := s.QueryIP(ctx, "google.com", dns.IPOption{
 		IPv4Enable: true,
-		IPv6Enable: true,
-	}, false)
+		IPv6Enable: false,
+	})
 	cancel()
 	common.Must(err)
 	if len(ips) == 0 {
@@ -67,13 +66,13 @@ func TestQUICNameServerWithIPv4Override(t *testing.T) {
 func TestQUICNameServerWithIPv6Override(t *testing.T) {
 	url, err := url.Parse("quic://dns.adguard-dns.com")
 	common.Must(err)
-	s, err := NewQUICNameServer(url, QueryStrategy_USE_IP6)
+	s, err := NewQUICNameServer(url, false, net.IP(nil))
 	common.Must(err)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
-	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns.IPOption{
-		IPv4Enable: true,
+	ips, _, err := s.QueryIP(ctx, "google.com", dns.IPOption{
+		IPv4Enable: false,
 		IPv6Enable: true,
-	}, false)
+	})
 	cancel()
 	common.Must(err)
 	if len(ips) == 0 {

app/dns/nameserver_tcp.go

@@ -4,12 +4,11 @@ import (
 	"bytes"
 	"context"
 	"encoding/binary"
+	go_errors "errors"
 	"net/url"
-	"sync"
 	"sync/atomic"
 	"time"
 
-	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/log"
@@ -17,34 +16,28 @@ import (
 	"github.com/xtls/xray-core/common/net/cnc"
 	"github.com/xtls/xray-core/common/protocol/dns"
 	"github.com/xtls/xray-core/common/session"
-	"github.com/xtls/xray-core/common/signal/pubsub"
-	"github.com/xtls/xray-core/common/task"
 	dns_feature "github.com/xtls/xray-core/features/dns"
 	"github.com/xtls/xray-core/features/routing"
 	"github.com/xtls/xray-core/transport/internet"
-	"golang.org/x/net/dns/dnsmessage"
 )
 
 // TCPNameServer implemented DNS over TCP (RFC7766).
 type TCPNameServer struct {
-	sync.RWMutex
-	name          string
-	destination   *net.Destination
-	ips           map[string]*record
-	pub           *pubsub.Service
-	cleanup       *task.Periodic
-	reqID         uint32
-	dial          func(context.Context) (net.Conn, error)
-	queryStrategy QueryStrategy
+	cacheController *CacheController
+	destination     *net.Destination
+	reqID           uint32
+	dial            func(context.Context) (net.Conn, error)
+	clientIP        net.IP
 }
 
 // NewTCPNameServer creates DNS over TCP server object for remote resolving.
 func NewTCPNameServer(
 	url *url.URL,
 	dispatcher routing.Dispatcher,
-	queryStrategy QueryStrategy,
+	disableCache bool,
+	clientIP net.IP,
 ) (*TCPNameServer, error) {
-	s, err := baseTCPNameServer(url, "TCP", queryStrategy)
+	s, err := baseTCPNameServer(url, "TCP", disableCache, clientIP)
 	if err != nil {
 		return nil, err
 	}
@@ -65,8 +58,8 @@ func NewTCPNameServer(
 }
 
 // NewTCPLocalNameServer creates DNS over TCP client object for local resolving
-func NewTCPLocalNameServer(url *url.URL, queryStrategy QueryStrategy) (*TCPNameServer, error) {
-	s, err := baseTCPNameServer(url, "TCPL", queryStrategy)
+func NewTCPLocalNameServer(url *url.URL, disableCache bool, clientIP net.IP) (*TCPNameServer, error) {
+	s, err := baseTCPNameServer(url, "TCPL", disableCache, clientIP)
 	if err != nil {
 		return nil, err
 	}
@@ -78,7 +71,7 @@ func NewTCPLocalNameServer(url *url.URL, queryStrategy QueryStrategy) (*TCPNameS
 	return s, nil
 }
 
-func baseTCPNameServer(url *url.URL, prefix string, queryStrategy QueryStrategy) (*TCPNameServer, error) {
+func baseTCPNameServer(url *url.URL, prefix string, disableCache bool, clientIP net.IP) (*TCPNameServer, error) {
 	port := net.Port(53)
 	if url.Port() != "" {
 		var err error
@@ -89,15 +82,9 @@ func baseTCPNameServer(url *url.URL, prefix string, queryStrategy QueryStrategy)
 	dest := net.TCPDestination(net.ParseAddress(url.Hostname()), port)
 
 	s := &TCPNameServer{
-		destination:   &dest,
-		ips:           make(map[string]*record),
-		pub:           pubsub.NewService(),
-		name:          prefix + "//" + dest.NetAddr(),
-		queryStrategy: queryStrategy,
-	}
-	s.cleanup = &task.Periodic{
-		Interval: time.Minute,
-		Execute:  s.Cleanup,
+		cacheController: NewCacheController(prefix+"//"+dest.NetAddr(), disableCache),
+		destination:     &dest,
+		clientIP:        clientIP,
 	}
 
 	return s, nil
@@ -105,94 +92,17 @@ func baseTCPNameServer(url *url.URL, prefix string, queryStrategy QueryStrategy)
 
 // Name implements Server.
 func (s *TCPNameServer) Name() string {
-	return s.name
-}
-
-// Cleanup clears expired items from cache
-func (s *TCPNameServer) Cleanup() error {
-	now := time.Now()
-	s.Lock()
-	defer s.Unlock()
-
-	if len(s.ips) == 0 {
-		return errors.New("nothing to do. stopping...")
-	}
-
-	for domain, record := range s.ips {
-		if record.A != nil && record.A.Expire.Before(now) {
-			record.A = nil
-		}
-		if record.AAAA != nil && record.AAAA.Expire.Before(now) {
-			record.AAAA = nil
-		}
-
-		if record.A == nil && record.AAAA == nil {
-			errors.LogDebug(context.Background(), s.name, " cleanup ", domain)
-			delete(s.ips, domain)
-		} else {
-			s.ips[domain] = record
-		}
-	}
-
-	if len(s.ips) == 0 {
-		s.ips = make(map[string]*record)
-	}
-
-	return nil
-}
-
-func (s *TCPNameServer) updateIP(req *dnsRequest, ipRec *IPRecord) {
-	elapsed := time.Since(req.start)
-
-	s.Lock()
-	rec, found := s.ips[req.domain]
-	if !found {
-		rec = &record{}
-	}
-	updated := false
-
-	switch req.reqType {
-	case dnsmessage.TypeA:
-		if isNewer(rec.A, ipRec) {
-			rec.A = ipRec
-			updated = true
-		}
-	case dnsmessage.TypeAAAA:
-		addr := make([]net.Address, 0)
-		for _, ip := range ipRec.IP {
-			if len(ip.IP()) == net.IPv6len {
-				addr = append(addr, ip)
-			}
-		}
-		ipRec.IP = addr
-		if isNewer(rec.AAAA, ipRec) {
-			rec.AAAA = ipRec
-			updated = true
-		}
-	}
-	errors.LogInfo(context.Background(), s.name, " got answer: ", req.domain, " ", req.reqType, " -> ", ipRec.IP, " ", elapsed)
-
-	if updated {
-		s.ips[req.domain] = rec
-	}
-	switch req.reqType {
-	case dnsmessage.TypeA:
-		s.pub.Publish(req.domain+"4", nil)
-	case dnsmessage.TypeAAAA:
-		s.pub.Publish(req.domain+"6", nil)
-	}
-	s.Unlock()
-	common.Must(s.cleanup.Start())
+	return s.cacheController.name
 }
 
 func (s *TCPNameServer) newReqID() uint16 {
 	return uint16(atomic.AddUint32(&s.reqID, 1))
 }
 
-func (s *TCPNameServer) sendQuery(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption) {
-	errors.LogDebug(ctx, s.name, " querying DNS for: ", domain)
+func (s *TCPNameServer) sendQuery(ctx context.Context, noResponseErrCh chan<- error, domain string, option dns_feature.IPOption) {
+	errors.LogDebug(ctx, s.Name(), " querying DNS for: ", domain)
 
-	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(clientIP))
+	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(s.clientIP, 0))
 
 	var deadline time.Time
 	if d, ok := ctx.Deadline(); ok {
@@ -221,23 +131,36 @@ func (s *TCPNameServer) sendQuery(ctx context.Context, domain string, clientIP n
 			b, err := dns.PackMessage(r.msg)
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "failed to pack dns query")
+				noResponseErrCh <- err
 				return
 			}
 
 			conn, err := s.dial(dnsCtx)
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "failed to dial namesever")
+				noResponseErrCh <- err
 				return
 			}
 			defer conn.Close()
 			dnsReqBuf := buf.New()
-			binary.Write(dnsReqBuf, binary.BigEndian, uint16(b.Len()))
-			dnsReqBuf.Write(b.Bytes())
+			err = binary.Write(dnsReqBuf, binary.BigEndian, uint16(b.Len()))
+			if err != nil {
+				errors.LogErrorInner(ctx, err, "binary write failed")
+				noResponseErrCh <- err
+				return
+			}
+			_, err = dnsReqBuf.Write(b.Bytes())
+			if err != nil {
+				errors.LogErrorInner(ctx, err, "buffer write failed")
+				noResponseErrCh <- err
+				return
+			}
 			b.Release()
 
 			_, err = conn.Write(dnsReqBuf.Bytes())
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "failed to send query")
+				noResponseErrCh <- err
 				return
 			}
 			dnsReqBuf.Release()
@@ -247,129 +170,80 @@ func (s *TCPNameServer) sendQuery(ctx context.Context, domain string, clientIP n
 			n, err := respBuf.ReadFullFrom(conn, 2)
 			if err != nil && n == 0 {
 				errors.LogErrorInner(ctx, err, "failed to read response length")
+				noResponseErrCh <- err
 				return
 			}
 			var length int16
 			err = binary.Read(bytes.NewReader(respBuf.Bytes()), binary.BigEndian, &length)
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "failed to parse response length")
+				noResponseErrCh <- err
 				return
 			}
 			respBuf.Clear()
 			n, err = respBuf.ReadFullFrom(conn, int32(length))
 			if err != nil && n == 0 {
 				errors.LogErrorInner(ctx, err, "failed to read response length")
+				noResponseErrCh <- err
 				return
 			}
 
 			rec, err := parseResponse(respBuf.Bytes())
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "failed to parse DNS over TCP response")
+				noResponseErrCh <- err
 				return
 			}
 
-			s.updateIP(r, rec)
+			s.cacheController.updateIP(r, rec)
 		}(req)
 	}
 }
 
-func (s *TCPNameServer) findIPsForDomain(domain string, option dns_feature.IPOption) ([]net.IP, error) {
-	s.RLock()
-	record, found := s.ips[domain]
-	s.RUnlock()
-
-	if !found {
-		return nil, errRecordNotFound
-	}
-
-	var err4 error
-	var err6 error
-	var ips []net.Address
-	var ip6 []net.Address
-
-	if option.IPv4Enable {
-		ips, err4 = record.A.getIPs()
-	}
-
-	if option.IPv6Enable {
-		ip6, err6 = record.AAAA.getIPs()
-		ips = append(ips, ip6...)
-	}
-
-	if len(ips) > 0 {
-		return toNetIP(ips)
-	}
-
-	if err4 != nil {
-		return nil, err4
-	}
-
-	if err6 != nil {
-		return nil, err6
-	}
-
-	return nil, dns_feature.ErrEmptyResponse
-}
-
 // QueryIP implements Server.
-func (s *TCPNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, disableCache bool) ([]net.IP, error) {
+func (s *TCPNameServer) QueryIP(ctx context.Context, domain string, option dns_feature.IPOption) ([]net.IP, uint32, error) {
 	fqdn := Fqdn(domain)
-	option = ResolveIpOptionOverride(s.queryStrategy, option)
-	if !option.IPv4Enable && !option.IPv6Enable {
-		return nil, dns_feature.ErrEmptyResponse
-	}
+	sub4, sub6 := s.cacheController.registerSubscribers(fqdn, option)
+	defer closeSubscribers(sub4, sub6)
 
-	if disableCache {
-		errors.LogDebug(ctx, "DNS cache is disabled. Querying IP for ", domain, " at ", s.name)
+	if s.cacheController.disableCache {
+		errors.LogDebug(ctx, "DNS cache is disabled. Querying IP for ", domain, " at ", s.Name())
 	} else {
-		ips, err := s.findIPsForDomain(fqdn, option)
-		if err == nil || err == dns_feature.ErrEmptyResponse {
-			errors.LogDebugInner(ctx, err, s.name, " cache HIT ", domain, " -> ", ips)
-			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSCacheHit, Elapsed: 0, Error: err})
-			return ips, err
+		ips, ttl, err := s.cacheController.findIPsForDomain(fqdn, option)
+		if !go_errors.Is(err, errRecordNotFound) {
+			errors.LogDebugInner(ctx, err, s.Name(), " cache HIT ", domain, " -> ", ips)
+			log.Record(&log.DNSLog{Server: s.Name(), Domain: domain, Result: ips, Status: log.DNSCacheHit, Elapsed: 0, Error: err})
+			return ips, ttl, err
 		}
 	}
 
-	// ipv4 and ipv6 belong to different subscription groups
-	var sub4, sub6 *pubsub.Subscriber
-	if option.IPv4Enable {
-		sub4 = s.pub.Subscribe(fqdn + "4")
-		defer sub4.Close()
-	}
-	if option.IPv6Enable {
-		sub6 = s.pub.Subscribe(fqdn + "6")
-		defer sub6.Close()
-	}
-	done := make(chan interface{})
-	go func() {
-		if sub4 != nil {
-			select {
-			case <-sub4.Wait():
-			case <-ctx.Done():
-			}
-		}
-		if sub6 != nil {
-			select {
-			case <-sub6.Wait():
-			case <-ctx.Done():
-			}
-		}
-		close(done)
-	}()
-	s.sendQuery(ctx, fqdn, clientIP, option)
+	noResponseErrCh := make(chan error, 2)
+	s.sendQuery(ctx, noResponseErrCh, fqdn, option)
 	start := time.Now()
 
-	for {
-		ips, err := s.findIPsForDomain(fqdn, option)
-		if err != errRecordNotFound {
-			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSQueried, Elapsed: time.Since(start), Error: err})
-			return ips, err
-		}
-
+	if sub4 != nil {
 		select {
 		case <-ctx.Done():
-			return nil, ctx.Err()
-		case <-done:
+			return nil, 0, ctx.Err()
+		case err := <-noResponseErrCh:
+			return nil, 0, err
+		case <-sub4.Wait():
+			sub4.Close()
 		}
 	}
+	if sub6 != nil {
+		select {
+		case <-ctx.Done():
+			return nil, 0, ctx.Err()
+		case err := <-noResponseErrCh:
+			return nil, 0, err
+		case <-sub6.Wait():
+			sub6.Close()
+		}
+	}
+
+	ips, ttl, err := s.cacheController.findIPsForDomain(fqdn, option)
+	log.Record(&log.DNSLog{Server: s.Name(), Domain: domain, Result: ips, Status: log.DNSQueried, Elapsed: time.Since(start), Error: err})
+	return ips, ttl, err
+
 }

app/dns/nameserver_tcp_test.go

@@ -16,13 +16,13 @@ import (
 func TestTCPLocalNameServer(t *testing.T) {
 	url, err := url.Parse("tcp+local://8.8.8.8")
 	common.Must(err)
-	s, err := NewTCPLocalNameServer(url, QueryStrategy_USE_IP)
+	s, err := NewTCPLocalNameServer(url, false, net.IP(nil))
 	common.Must(err)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
+	ips, _, err := s.QueryIP(ctx, "google.com", dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
-	}, false)
+	})
 	cancel()
 	common.Must(err)
 	if len(ips) == 0 {
@@ -33,13 +33,13 @@ func TestTCPLocalNameServer(t *testing.T) {
 func TestTCPLocalNameServerWithCache(t *testing.T) {
 	url, err := url.Parse("tcp+local://8.8.8.8")
 	common.Must(err)
-	s, err := NewTCPLocalNameServer(url, QueryStrategy_USE_IP)
+	s, err := NewTCPLocalNameServer(url, false, net.IP(nil))
 	common.Must(err)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
+	ips, _, err := s.QueryIP(ctx, "google.com", dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
-	}, false)
+	})
 	cancel()
 	common.Must(err)
 	if len(ips) == 0 {
@@ -47,10 +47,10 @@ func TestTCPLocalNameServerWithCache(t *testing.T) {
 	}
 
 	ctx2, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips2, err := s.QueryIP(ctx2, "google.com", net.IP(nil), dns_feature.IPOption{
+	ips2, _, err := s.QueryIP(ctx2, "google.com", dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
-	}, true)
+	})
 	cancel()
 	common.Must(err)
 	if r := cmp.Diff(ips2, ips); r != "" {
@@ -61,13 +61,13 @@ func TestTCPLocalNameServerWithCache(t *testing.T) {
 func TestTCPLocalNameServerWithIPv4Override(t *testing.T) {
 	url, err := url.Parse("tcp+local://8.8.8.8")
 	common.Must(err)
-	s, err := NewTCPLocalNameServer(url, QueryStrategy_USE_IP4)
+	s, err := NewTCPLocalNameServer(url, false, net.IP(nil))
 	common.Must(err)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
+	ips, _, err := s.QueryIP(ctx, "google.com", dns_feature.IPOption{
 		IPv4Enable: true,
-		IPv6Enable: true,
-	}, false)
+		IPv6Enable: false,
+	})
 	cancel()
 	common.Must(err)
 
@@ -85,13 +85,13 @@ func TestTCPLocalNameServerWithIPv4Override(t *testing.T) {
 func TestTCPLocalNameServerWithIPv6Override(t *testing.T) {
 	url, err := url.Parse("tcp+local://8.8.8.8")
 	common.Must(err)
-	s, err := NewTCPLocalNameServer(url, QueryStrategy_USE_IP6)
+	s, err := NewTCPLocalNameServer(url, false, net.IP(nil))
 	common.Must(err)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
-		IPv4Enable: true,
+	ips, _, err := s.QueryIP(ctx, "google.com", dns_feature.IPOption{
+		IPv4Enable: false,
 		IPv6Enable: true,
-	}, false)
+	})
 	cancel()
 	common.Must(err)
 

app/dns/nameserver_udp.go

@@ -2,6 +2,7 @@ package dns
 
 import (
 	"context"
+	go_errors "errors"
 	"strings"
 	"sync"
 	"sync/atomic"
@@ -13,7 +14,6 @@ import (
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/protocol/dns"
 	udp_proto "github.com/xtls/xray-core/common/protocol/udp"
-	"github.com/xtls/xray-core/common/signal/pubsub"
 	"github.com/xtls/xray-core/common/task"
 	dns_feature "github.com/xtls/xray-core/features/dns"
 	"github.com/xtls/xray-core/features/routing"
@@ -24,35 +24,36 @@ import (
 // ClassicNameServer implemented traditional UDP DNS.
 type ClassicNameServer struct {
 	sync.RWMutex
-	name          string
-	address       *net.Destination
-	ips           map[string]*record
-	requests      map[uint16]*dnsRequest
-	pub           *pubsub.Service
-	udpServer     *udp.Dispatcher
-	cleanup       *task.Periodic
-	reqID         uint32
-	queryStrategy QueryStrategy
+	cacheController *CacheController
+	address         *net.Destination
+	requests        map[uint16]*udpDnsRequest
+	udpServer       *udp.Dispatcher
+	requestsCleanup *task.Periodic
+	reqID           uint32
+	clientIP        net.IP
+}
+
+type udpDnsRequest struct {
+	dnsRequest
+	ctx context.Context
 }
 
 // NewClassicNameServer creates udp server object for remote resolving.
-func NewClassicNameServer(address net.Destination, dispatcher routing.Dispatcher, queryStrategy QueryStrategy) *ClassicNameServer {
+func NewClassicNameServer(address net.Destination, dispatcher routing.Dispatcher, disableCache bool, clientIP net.IP) *ClassicNameServer {
 	// default to 53 if unspecific
 	if address.Port == 0 {
 		address.Port = net.Port(53)
 	}
 
 	s := &ClassicNameServer{
-		address:       &address,
-		ips:           make(map[string]*record),
-		requests:      make(map[uint16]*dnsRequest),
-		pub:           pubsub.NewService(),
-		name:          strings.ToUpper(address.String()),
-		queryStrategy: queryStrategy,
+		cacheController: NewCacheController(strings.ToUpper(address.String()), disableCache),
+		address:         &address,
+		requests:        make(map[uint16]*udpDnsRequest),
+		clientIP:        clientIP,
 	}
-	s.cleanup = &task.Periodic{
+	s.requestsCleanup = &task.Periodic{
 		Interval: time.Minute,
-		Execute:  s.Cleanup,
+		Execute:  s.RequestsCleanup,
 	}
 	s.udpServer = udp.NewDispatcher(dispatcher, s.HandleResponse)
 	errors.LogInfo(context.Background(), "DNS: created UDP client initialized for ", address.NetAddr())
@@ -61,37 +62,17 @@ func NewClassicNameServer(address net.Destination, dispatcher routing.Dispatcher
 
 // Name implements Server.
 func (s *ClassicNameServer) Name() string {
-	return s.name
+	return s.cacheController.name
 }
 
-// Cleanup clears expired items from cache
-func (s *ClassicNameServer) Cleanup() error {
+// RequestsCleanup clears expired items from cache
+func (s *ClassicNameServer) RequestsCleanup() error {
 	now := time.Now()
 	s.Lock()
 	defer s.Unlock()
 
-	if len(s.ips) == 0 && len(s.requests) == 0 {
-		return errors.New(s.name, " nothing to do. stopping...")
-	}
-
-	for domain, record := range s.ips {
-		if record.A != nil && record.A.Expire.Before(now) {
-			record.A = nil
-		}
-		if record.AAAA != nil && record.AAAA.Expire.Before(now) {
-			record.AAAA = nil
-		}
-
-		if record.A == nil && record.AAAA == nil {
-			errors.LogDebug(context.Background(), s.name, " cleanup ", domain)
-			delete(s.ips, domain)
-		} else {
-			s.ips[domain] = record
-		}
-	}
-
-	if len(s.ips) == 0 {
-		s.ips = make(map[string]*record)
+	if len(s.requests) == 0 {
+		return errors.New(s.Name(), " nothing to do. stopping...")
 	}
 
 	for id, req := range s.requests {
@@ -101,7 +82,7 @@ func (s *ClassicNameServer) Cleanup() error {
 	}
 
 	if len(s.requests) == 0 {
-		s.requests = make(map[uint16]*dnsRequest)
+		s.requests = make(map[uint16]*udpDnsRequest)
 	}
 
 	return nil
@@ -111,7 +92,7 @@ func (s *ClassicNameServer) Cleanup() error {
 func (s *ClassicNameServer) HandleResponse(ctx context.Context, packet *udp_proto.Packet) {
 	ipRec, err := parseResponse(packet.Payload.Bytes())
 	if err != nil {
-		errors.LogError(ctx, s.name, " fail to parse responded DNS udp")
+		errors.LogError(ctx, s.Name(), " fail to parse responded DNS udp")
 		return
 	}
 
@@ -124,179 +105,107 @@ func (s *ClassicNameServer) HandleResponse(ctx context.Context, packet *udp_prot
 	}
 	s.Unlock()
 	if !ok {
-		errors.LogError(ctx, s.name, " cannot find the pending request")
+		errors.LogError(ctx, s.Name(), " cannot find the pending request")
 		return
 	}
 
-	var rec record
-	switch req.reqType {
-	case dnsmessage.TypeA:
-		rec.A = ipRec
-	case dnsmessage.TypeAAAA:
-		rec.AAAA = ipRec
+	// if truncated, retry with EDNS0 option(udp payload size: 1350)
+	if ipRec.RawHeader.Truncated {
+		// if already has EDNS0 option, no need to retry
+		if len(req.msg.Additionals) == 0 {
+			// copy necessary meta data from original request
+			// and add EDNS0 option
+			opt := new(dnsmessage.Resource)
+			common.Must(opt.Header.SetEDNS0(1350, 0xfe00, true))
+			opt.Body = &dnsmessage.OPTResource{}
+			newMsg := *req.msg
+			newReq := *req
+			newMsg.Additionals = append(newMsg.Additionals, *opt)
+			newMsg.ID = s.newReqID()
+			newReq.msg = &newMsg
+			s.addPendingRequest(&newReq)
+			b, _ := dns.PackMessage(newReq.msg)
+			s.udpServer.Dispatch(toDnsContext(newReq.ctx, s.address.String()), *s.address, b)
+			return
+		}
 	}
 
-	elapsed := time.Since(req.start)
-	errors.LogInfo(ctx, s.name, " got answer: ", req.domain, " ", req.reqType, " -> ", ipRec.IP, " ", elapsed)
-	if len(req.domain) > 0 && (rec.A != nil || rec.AAAA != nil) {
-		s.updateIP(req.domain, &rec)
-	}
-}
-
-func (s *ClassicNameServer) updateIP(domain string, newRec *record) {
-	s.Lock()
-
-	rec, found := s.ips[domain]
-	if !found {
-		rec = &record{}
-	}
-
-	updated := false
-	if isNewer(rec.A, newRec.A) {
-		rec.A = newRec.A
-		updated = true
-	}
-	if isNewer(rec.AAAA, newRec.AAAA) {
-		rec.AAAA = newRec.AAAA
-		updated = true
-	}
-
-	if updated {
-		errors.LogDebug(context.Background(), s.name, " updating IP records for domain:", domain)
-		s.ips[domain] = rec
-	}
-	if newRec.A != nil {
-		s.pub.Publish(domain+"4", nil)
-	}
-	if newRec.AAAA != nil {
-		s.pub.Publish(domain+"6", nil)
-	}
-	s.Unlock()
-	common.Must(s.cleanup.Start())
+	s.cacheController.updateIP(&req.dnsRequest, ipRec)
 }
 
 func (s *ClassicNameServer) newReqID() uint16 {
 	return uint16(atomic.AddUint32(&s.reqID, 1))
 }
 
-func (s *ClassicNameServer) addPendingRequest(req *dnsRequest) {
+func (s *ClassicNameServer) addPendingRequest(req *udpDnsRequest) {
 	s.Lock()
-	defer s.Unlock()
-
 	id := req.msg.ID
 	req.expire = time.Now().Add(time.Second * 8)
 	s.requests[id] = req
+	s.Unlock()
+	common.Must(s.requestsCleanup.Start())
 }
 
-func (s *ClassicNameServer) sendQuery(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption) {
-	errors.LogDebug(ctx, s.name, " querying DNS for: ", domain)
+func (s *ClassicNameServer) sendQuery(ctx context.Context, _ chan<- error, domain string, option dns_feature.IPOption) {
+	errors.LogDebug(ctx, s.Name(), " querying DNS for: ", domain)
 
-	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(clientIP))
+	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(s.clientIP, 0))
 
 	for _, req := range reqs {
-		s.addPendingRequest(req)
+		udpReq := &udpDnsRequest{
+			dnsRequest: *req,
+			ctx:        ctx,
+		}
+		s.addPendingRequest(udpReq)
 		b, _ := dns.PackMessage(req.msg)
 		s.udpServer.Dispatch(toDnsContext(ctx, s.address.String()), *s.address, b)
 	}
 }
 
-func (s *ClassicNameServer) findIPsForDomain(domain string, option dns_feature.IPOption) ([]net.IP, error) {
-	s.RLock()
-	record, found := s.ips[domain]
-	s.RUnlock()
-
-	if !found {
-		return nil, errRecordNotFound
-	}
-
-	var err4 error
-	var err6 error
-	var ips []net.Address
-	var ip6 []net.Address
-
-	if option.IPv4Enable {
-		ips, err4 = record.A.getIPs()
-	}
-
-	if option.IPv6Enable {
-		ip6, err6 = record.AAAA.getIPs()
-		ips = append(ips, ip6...)
-	}
-
-	if len(ips) > 0 {
-		return toNetIP(ips)
-	}
-
-	if err4 != nil {
-		return nil, err4
-	}
-
-	if err6 != nil {
-		return nil, err6
-	}
-
-	return nil, dns_feature.ErrEmptyResponse
-}
-
 // QueryIP implements Server.
-func (s *ClassicNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, disableCache bool) ([]net.IP, error) {
+func (s *ClassicNameServer) QueryIP(ctx context.Context, domain string, option dns_feature.IPOption) ([]net.IP, uint32, error) {
 	fqdn := Fqdn(domain)
-	option = ResolveIpOptionOverride(s.queryStrategy, option)
-	if !option.IPv4Enable && !option.IPv6Enable {
-		return nil, dns_feature.ErrEmptyResponse
-	}
+	sub4, sub6 := s.cacheController.registerSubscribers(fqdn, option)
+	defer closeSubscribers(sub4, sub6)
 
-	if disableCache {
-		errors.LogDebug(ctx, "DNS cache is disabled. Querying IP for ", domain, " at ", s.name)
+	if s.cacheController.disableCache {
+		errors.LogDebug(ctx, "DNS cache is disabled. Querying IP for ", domain, " at ", s.Name())
 	} else {
-		ips, err := s.findIPsForDomain(fqdn, option)
-		if err == nil || err == dns_feature.ErrEmptyResponse {
-			errors.LogDebugInner(ctx, err, s.name, " cache HIT ", domain, " -> ", ips)
-			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSCacheHit, Elapsed: 0, Error: err})
-			return ips, err
+		ips, ttl, err := s.cacheController.findIPsForDomain(fqdn, option)
+		if !go_errors.Is(err, errRecordNotFound) {
+			errors.LogDebugInner(ctx, err, s.Name(), " cache HIT ", domain, " -> ", ips)
+			log.Record(&log.DNSLog{Server: s.Name(), Domain: domain, Result: ips, Status: log.DNSCacheHit, Elapsed: 0, Error: err})
+			return ips, ttl, err
 		}
 	}
 
-	// ipv4 and ipv6 belong to different subscription groups
-	var sub4, sub6 *pubsub.Subscriber
-	if option.IPv4Enable {
-		sub4 = s.pub.Subscribe(fqdn + "4")
-		defer sub4.Close()
-	}
-	if option.IPv6Enable {
-		sub6 = s.pub.Subscribe(fqdn + "6")
-		defer sub6.Close()
-	}
-	done := make(chan interface{})
-	go func() {
-		if sub4 != nil {
-			select {
-			case <-sub4.Wait():
-			case <-ctx.Done():
-			}
-		}
-		if sub6 != nil {
-			select {
-			case <-sub6.Wait():
-			case <-ctx.Done():
-			}
-		}
-		close(done)
-	}()
-	s.sendQuery(ctx, fqdn, clientIP, option)
+	noResponseErrCh := make(chan error, 2)
+	s.sendQuery(ctx, noResponseErrCh, fqdn, option)
 	start := time.Now()
 
-	for {
-		ips, err := s.findIPsForDomain(fqdn, option)
-		if err != errRecordNotFound {
-			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSQueried, Elapsed: time.Since(start), Error: err})
-			return ips, err
-		}
-
+	if sub4 != nil {
 		select {
 		case <-ctx.Done():
-			return nil, ctx.Err()
-		case <-done:
+			return nil, 0, ctx.Err()
+		case err := <-noResponseErrCh:
+			return nil, 0, err
+		case <-sub4.Wait():
+			sub4.Close()
 		}
 	}
+	if sub6 != nil {
+		select {
+		case <-ctx.Done():
+			return nil, 0, ctx.Err()
+		case err := <-noResponseErrCh:
+			return nil, 0, err
+		case <-sub6.Wait():
+			sub6.Close()
+		}
+	}
+
+	ips, ttl, err := s.cacheController.findIPsForDomain(fqdn, option)
+	log.Record(&log.DNSLog{Server: s.Name(), Domain: domain, Result: ips, Status: log.DNSQueried, Elapsed: time.Since(start), Error: err})
+	return ips, ttl, err
+
 }

app/metrics/config.pb.go

@@ -27,7 +27,8 @@ type Config struct {
 	unknownFields protoimpl.UnknownFields
 
 	// Tag of the outbound handler that handles metrics http connections.
-	Tag string `protobuf:"bytes,1,opt,name=tag,proto3" json:"tag,omitempty"`
+	Tag    string `protobuf:"bytes,1,opt,name=tag,proto3" json:"tag,omitempty"`
+	Listen string `protobuf:"bytes,2,opt,name=listen,proto3" json:"listen,omitempty"`
 }
 
 func (x *Config) Reset() {
@@ -67,20 +68,28 @@ func (x *Config) GetTag() string {
 	return ""
 }
 
+func (x *Config) GetListen() string {
+	if x != nil {
+		return x.Listen
+	}
+	return ""
+}
+
 var File_app_metrics_config_proto protoreflect.FileDescriptor
 
 var file_app_metrics_config_proto_rawDesc = []byte{
 	0x0a, 0x18, 0x61, 0x70, 0x70, 0x2f, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x2f, 0x63, 0x6f,
 	0x6e, 0x66, 0x69, 0x67, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x10, 0x78, 0x72, 0x61, 0x79,
-	0x2e, 0x61, 0x70, 0x70, 0x2e, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x22, 0x1a, 0x0a, 0x06,
+	0x2e, 0x61, 0x70, 0x70, 0x2e, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x22, 0x32, 0x0a, 0x06,
 	0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x10, 0x0a, 0x03, 0x74, 0x61, 0x67, 0x18, 0x01, 0x20,
-	0x01, 0x28, 0x09, 0x52, 0x03, 0x74, 0x61, 0x67, 0x42, 0x52, 0x0a, 0x14, 0x63, 0x6f, 0x6d, 0x2e,
-	0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73,
-	0x50, 0x01, 0x5a, 0x25, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78,
-	0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x61, 0x70,
-	0x70, 0x2f, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0xaa, 0x02, 0x10, 0x58, 0x72, 0x61, 0x79,
-	0x2e, 0x41, 0x70, 0x70, 0x2e, 0x4d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x62, 0x06, 0x70, 0x72,
-	0x6f, 0x74, 0x6f, 0x33,
+	0x01, 0x28, 0x09, 0x52, 0x03, 0x74, 0x61, 0x67, 0x12, 0x16, 0x0a, 0x06, 0x6c, 0x69, 0x73, 0x74,
+	0x65, 0x6e, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x06, 0x6c, 0x69, 0x73, 0x74, 0x65, 0x6e,
+	0x42, 0x52, 0x0a, 0x14, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70,
+	0x2e, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x50, 0x01, 0x5a, 0x25, 0x67, 0x69, 0x74, 0x68,
+	0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79,
+	0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x61, 0x70, 0x70, 0x2f, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63,
+	0x73, 0xaa, 0x02, 0x10, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x4d, 0x65, 0x74,
+	0x72, 0x69, 0x63, 0x73, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (

app/metrics/config.proto

@@ -10,4 +10,5 @@ option java_multiple_files = true;
 message Config {
   // Tag of the outbound handler that handles metrics http connections.
   string tag = 1;
+  string listen = 2;
 }

app/metrics/metrics.go

@@ -24,12 +24,15 @@ type MetricsHandler struct {
 	statsManager feature_stats.Manager
 	observatory  extension.Observatory
 	tag          string
+	listen       string
+	tcpListener  net.Listener
 }
 
 // NewMetricsHandler creates a new MetricsHandler based on the given config.
 func NewMetricsHandler(ctx context.Context, config *Config) (*MetricsHandler, error) {
 	c := &MetricsHandler{
-		tag: config.Tag,
+		tag:    config.Tag,
+		listen: config.Listen,
 	}
 	common.Must(core.RequireFeatures(ctx, func(om outbound.Manager, sm feature_stats.Manager) {
 		c.statsManager = sm
@@ -87,6 +90,23 @@ func (p *MetricsHandler) Type() interface{} {
 }
 
 func (p *MetricsHandler) Start() error {
+
+	// direct listen a port if listen is set
+	if p.listen != "" {
+		TCPlistener, err := net.Listen("tcp", p.listen)
+		if err != nil {
+			return err
+		}
+		p.tcpListener = TCPlistener
+		errors.LogInfo(context.Background(), "Metrics server listening on ", p.listen)
+
+		go func() {
+			if err := http.Serve(TCPlistener, http.DefaultServeMux); err != nil {
+				errors.LogErrorInner(context.Background(), err, "failed to start metrics server")
+			}
+		}()
+	}
+
 	listener := &OutboundListener{
 		buffer: make(chan net.Conn, 4),
 		done:   done.New(),

app/metrics/outbound.go

@@ -8,6 +8,7 @@ import (
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/net/cnc"
+	"github.com/xtls/xray-core/common/serial"
 	"github.com/xtls/xray-core/common/signal/done"
 	"github.com/xtls/xray-core/transport"
 )
@@ -108,3 +109,13 @@ func (co *Outbound) Close() error {
 	co.closed = true
 	return co.listener.Close()
 }
+
+// SenderSettings implements outbound.Handler.
+func (co *Outbound) SenderSettings() *serial.TypedMessage {
+	return nil
+}
+
+// ProxySettings implements outbound.Handler.
+func (co *Outbound) ProxySettings() *serial.TypedMessage {
+	return nil
+}

app/observatory/burst/config.pb.go

@@ -90,6 +90,8 @@ type HealthPingConfig struct {
 	SamplingCount int32 `protobuf:"varint,4,opt,name=samplingCount,proto3" json:"samplingCount,omitempty"`
 	// ping timeout, int64 values of time.Duration
 	Timeout int64 `protobuf:"varint,5,opt,name=timeout,proto3" json:"timeout,omitempty"`
+	// http method to make request
+	HttpMethod string `protobuf:"bytes,6,opt,name=httpMethod,proto3" json:"httpMethod,omitempty"`
 }
 
 func (x *HealthPingConfig) Reset() {
@@ -157,6 +159,13 @@ func (x *HealthPingConfig) GetTimeout() int64 {
 	return 0
 }
 
+func (x *HealthPingConfig) GetHttpMethod() string {
+	if x != nil {
+		return x.HttpMethod
+	}
+	return ""
+}
+
 var File_app_observatory_burst_config_proto protoreflect.FileDescriptor
 
 var file_app_observatory_burst_config_proto_rawDesc = []byte{
@@ -173,7 +182,7 @@ var file_app_observatory_burst_config_proto_rawDesc = []byte{
 	0x2e, 0x6f, 0x62, 0x73, 0x65, 0x72, 0x76, 0x61, 0x74, 0x6f, 0x72, 0x79, 0x2e, 0x62, 0x75, 0x72,
 	0x73, 0x74, 0x2e, 0x48, 0x65, 0x61, 0x6c, 0x74, 0x68, 0x50, 0x69, 0x6e, 0x67, 0x43, 0x6f, 0x6e,
 	0x66, 0x69, 0x67, 0x52, 0x0a, 0x70, 0x69, 0x6e, 0x67, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x22,
-	0xb4, 0x01, 0x0a, 0x10, 0x48, 0x65, 0x61, 0x6c, 0x74, 0x68, 0x50, 0x69, 0x6e, 0x67, 0x43, 0x6f,
+	0xd4, 0x01, 0x0a, 0x10, 0x48, 0x65, 0x61, 0x6c, 0x74, 0x68, 0x50, 0x69, 0x6e, 0x67, 0x43, 0x6f,
 	0x6e, 0x66, 0x69, 0x67, 0x12, 0x20, 0x0a, 0x0b, 0x64, 0x65, 0x73, 0x74, 0x69, 0x6e, 0x61, 0x74,
 	0x69, 0x6f, 0x6e, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0b, 0x64, 0x65, 0x73, 0x74, 0x69,
 	0x6e, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x12, 0x22, 0x0a, 0x0c, 0x63, 0x6f, 0x6e, 0x6e, 0x65, 0x63,
@@ -184,7 +193,9 @@ var file_app_observatory_burst_config_proto_rawDesc = []byte{
 	0x6e, 0x67, 0x43, 0x6f, 0x75, 0x6e, 0x74, 0x18, 0x04, 0x20, 0x01, 0x28, 0x05, 0x52, 0x0d, 0x73,
 	0x61, 0x6d, 0x70, 0x6c, 0x69, 0x6e, 0x67, 0x43, 0x6f, 0x75, 0x6e, 0x74, 0x12, 0x18, 0x0a, 0x07,
 	0x74, 0x69, 0x6d, 0x65, 0x6f, 0x75, 0x74, 0x18, 0x05, 0x20, 0x01, 0x28, 0x03, 0x52, 0x07, 0x74,
-	0x69, 0x6d, 0x65, 0x6f, 0x75, 0x74, 0x42, 0x70, 0x0a, 0x1e, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72,
+	0x69, 0x6d, 0x65, 0x6f, 0x75, 0x74, 0x12, 0x1e, 0x0a, 0x0a, 0x68, 0x74, 0x74, 0x70, 0x4d, 0x65,
+	0x74, 0x68, 0x6f, 0x64, 0x18, 0x06, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0a, 0x68, 0x74, 0x74, 0x70,
+	0x4d, 0x65, 0x74, 0x68, 0x6f, 0x64, 0x42, 0x70, 0x0a, 0x1e, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72,
 	0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x6f, 0x62, 0x73, 0x65, 0x72, 0x76, 0x61, 0x74, 0x6f,
 	0x72, 0x79, 0x2e, 0x62, 0x75, 0x72, 0x73, 0x74, 0x50, 0x01, 0x5a, 0x2f, 0x67, 0x69, 0x74, 0x68,
 	0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79,

app/observatory/burst/config.proto

@@ -26,4 +26,7 @@ message HealthPingConfig {
   int32 samplingCount = 4;
   // ping timeout, int64 values of time.Duration
   int64 timeout = 5;
+  // http method to make request
+  string httpMethod = 6;
+
 }

app/observatory/burst/healthping.go

@@ -19,6 +19,7 @@ type HealthPingSettings struct {
 	Interval      time.Duration `json:"interval"`
 	SamplingCount int           `json:"sampling"`
 	Timeout       time.Duration `json:"timeout"`
+	HttpMethod    string        `json:"httpMethod"`
 }
 
 // HealthPing is the health checker for balancers
@@ -37,12 +38,21 @@ type HealthPing struct {
 func NewHealthPing(ctx context.Context, dispatcher routing.Dispatcher, config *HealthPingConfig) *HealthPing {
 	settings := &HealthPingSettings{}
 	if config != nil {
+
+		var httpMethod string
+		if config.HttpMethod == "" {
+			httpMethod = "HEAD"
+		} else {
+			httpMethod = strings.TrimSpace(config.HttpMethod)
+		}
+
 		settings = &HealthPingSettings{
 			Connectivity:  strings.TrimSpace(config.Connectivity),
 			Destination:   strings.TrimSpace(config.Destination),
 			Interval:      time.Duration(config.Interval),
 			SamplingCount: int(config.SamplingCount),
 			Timeout:       time.Duration(config.Timeout),
+			HttpMethod:    httpMethod,
 		}
 	}
 	if settings.Destination == "" {
@@ -66,10 +76,10 @@ func NewHealthPing(ctx context.Context, dispatcher routing.Dispatcher, config *H
 		settings.Timeout = time.Duration(5) * time.Second
 	}
 	return &HealthPing{
-		ctx:      ctx,
+		ctx:        ctx,
 		dispatcher: dispatcher,
-		Settings: settings,
-		Results:  nil,
+		Settings:   settings,
+		Results:    nil,
 	}
 }
 
@@ -164,7 +174,7 @@ func (h *HealthPing) doCheck(tags []string, duration time.Duration, rounds int)
 			}
 			time.AfterFunc(delay, func() {
 				errors.LogDebug(h.ctx, "checking ", handler)
-				delay, err := client.MeasureDelay()
+				delay, err := client.MeasureDelay(h.Settings.HttpMethod)
 				if err == nil {
 					ch <- &rtt{
 						handler: handler,
@@ -251,7 +261,7 @@ func (h *HealthPing) checkConnectivity() bool {
 		h.Settings.Connectivity,
 		h.Settings.Timeout,
 	)
-	if _, err := tester.MeasureDelay(); err != nil {
+	if _, err := tester.MeasureDelay(h.Settings.HttpMethod); err != nil {
 		return false
 	}
 	return true

app/observatory/burst/ping.go

@@ -2,6 +2,7 @@ package burst
 
 import (
 	"context"
+	"io"
 	"net/http"
 	"time"
 
@@ -51,20 +52,28 @@ func newHTTPClient(ctxv context.Context, dispatcher routing.Dispatcher, handler
 }
 
 // MeasureDelay returns the delay time of the request to dest
-func (s *pingClient) MeasureDelay() (time.Duration, error) {
+func (s *pingClient) MeasureDelay(httpMethod string) (time.Duration, error) {
 	if s.httpClient == nil {
 		panic("pingClient not initialized")
 	}
-	req, err := http.NewRequest(http.MethodHead, s.destination, nil)
+
+	req, err := http.NewRequest(httpMethod, s.destination, nil)
 	if err != nil {
 		return rttFailed, err
 	}
+
 	start := time.Now()
 	resp, err := s.httpClient.Do(req)
 	if err != nil {
 		return rttFailed, err
 	}
-	// don't wait for body
+	if httpMethod == http.MethodGet {
+		_, err = io.Copy(io.Discard, resp.Body)
+		if err != nil {
+			return rttFailed, err
+		}
+	}
 	resp.Body.Close()
+
 	return time.Since(start), nil
 }

app/observatory/command/command.go

@@ -38,7 +38,7 @@ func init() {
 		sv := &service{v: s}
 		err := s.RequireFeatures(func(Observatory extension.Observatory) {
 			sv.observatory = Observatory
-		})
+		}, false)
 		if err != nil {
 			return nil, err
 		}

app/observatory/observer.go

@@ -32,7 +32,7 @@ type Observer struct {
 
 	finished *done.Instance
 
-	ohm outbound.Manager
+	ohm        outbound.Manager
 	dispatcher routing.Dispatcher
 }
 
@@ -226,9 +226,9 @@ func New(ctx context.Context, config *Config) (*Observer, error) {
 		return nil, errors.New("Cannot get depended features").Base(err)
 	}
 	return &Observer{
-		config: config,
-		ctx:    ctx,
-		ohm:    outboundManager,
+		config:     config,
+		ctx:        ctx,
+		ohm:        outboundManager,
 		dispatcher: dispatcher,
 	}, nil
 }

app/proxyman/command/command.go

@@ -3,6 +3,7 @@ package command
 import (
 	"context"
 
+	"github.com/xtls/xray-core/app/commander"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/protocol"
@@ -99,6 +100,28 @@ func (s *handlerServer) AlterInbound(ctx context.Context, request *AlterInboundR
 	return &AlterInboundResponse{}, operation.ApplyInbound(ctx, handler)
 }
 
+func (s *handlerServer) ListInbounds(ctx context.Context, request *ListInboundsRequest) (*ListInboundsResponse, error) {
+	handlers := s.ihm.ListHandlers(ctx)
+	response := &ListInboundsResponse{}
+	if request.GetIsOnlyTags() {
+		for _, handler := range handlers {
+			response.Inbounds = append(response.Inbounds, &core.InboundHandlerConfig{
+				Tag: handler.Tag(),
+			})
+		}
+	} else {
+		for _, handler := range handlers {
+			response.Inbounds = append(response.Inbounds, &core.InboundHandlerConfig{
+				Tag:              handler.Tag(),
+				ReceiverSettings: handler.ReceiverSettings(),
+				ProxySettings:    handler.ProxySettings(),
+			})
+		}
+	}
+
+	return response, nil
+}
+
 func (s *handlerServer) GetInboundUsers(ctx context.Context, request *GetInboundUserRequest) (*GetInboundUserResponse, error) {
 	handler, err := s.ihm.GetHandler(ctx, request.Tag)
 	if err != nil {
@@ -164,6 +187,23 @@ func (s *handlerServer) AlterOutbound(ctx context.Context, request *AlterOutboun
 	return &AlterOutboundResponse{}, operation.ApplyOutbound(ctx, handler)
 }
 
+func (s *handlerServer) ListOutbounds(ctx context.Context, request *ListOutboundsRequest) (*ListOutboundsResponse, error) {
+	handlers := s.ohm.ListHandlers(ctx)
+	response := &ListOutboundsResponse{}
+	for _, handler := range handlers {
+		// Ignore gRPC outbound
+		if _, ok := handler.(*commander.Outbound); ok {
+			continue
+		}
+		response.Outbounds = append(response.Outbounds, &core.OutboundHandlerConfig{
+			Tag:            handler.Tag(),
+			SenderSettings: handler.SenderSettings(),
+			ProxySettings:  handler.ProxySettings(),
+		})
+	}
+	return response, nil
+}
+
 func (s *handlerServer) mustEmbedUnimplementedHandlerServiceServer() {}
 
 type service struct {
@@ -177,7 +217,7 @@ func (s *service) Register(server *grpc.Server) {
 	common.Must(s.v.RequireFeatures(func(im inbound.Manager, om outbound.Manager) {
 		hs.ihm = im
 		hs.ohm = om
-	}))
+	}, false))
 	RegisterHandlerServiceServer(server, hs)
 
 	// For compatibility purposes

app/proxyman/command/command.pb.go

@@ -364,6 +364,96 @@ func (*AlterInboundResponse) Descriptor() ([]byte, []int) {
 	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{7}
 }
 
+type ListInboundsRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	IsOnlyTags bool `protobuf:"varint,1,opt,name=isOnlyTags,proto3" json:"isOnlyTags,omitempty"`
+}
+
+func (x *ListInboundsRequest) Reset() {
+	*x = ListInboundsRequest{}
+	mi := &file_app_proxyman_command_command_proto_msgTypes[8]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *ListInboundsRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ListInboundsRequest) ProtoMessage() {}
+
+func (x *ListInboundsRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_app_proxyman_command_command_proto_msgTypes[8]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ListInboundsRequest.ProtoReflect.Descriptor instead.
+func (*ListInboundsRequest) Descriptor() ([]byte, []int) {
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{8}
+}
+
+func (x *ListInboundsRequest) GetIsOnlyTags() bool {
+	if x != nil {
+		return x.IsOnlyTags
+	}
+	return false
+}
+
+type ListInboundsResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Inbounds []*core.InboundHandlerConfig `protobuf:"bytes,1,rep,name=inbounds,proto3" json:"inbounds,omitempty"`
+}
+
+func (x *ListInboundsResponse) Reset() {
+	*x = ListInboundsResponse{}
+	mi := &file_app_proxyman_command_command_proto_msgTypes[9]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *ListInboundsResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ListInboundsResponse) ProtoMessage() {}
+
+func (x *ListInboundsResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_app_proxyman_command_command_proto_msgTypes[9]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ListInboundsResponse.ProtoReflect.Descriptor instead.
+func (*ListInboundsResponse) Descriptor() ([]byte, []int) {
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{9}
+}
+
+func (x *ListInboundsResponse) GetInbounds() []*core.InboundHandlerConfig {
+	if x != nil {
+		return x.Inbounds
+	}
+	return nil
+}
+
 type GetInboundUserRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -375,7 +465,7 @@ type GetInboundUserRequest struct {
 
 func (x *GetInboundUserRequest) Reset() {
 	*x = GetInboundUserRequest{}
-	mi := &file_app_proxyman_command_command_proto_msgTypes[8]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[10]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -387,7 +477,7 @@ func (x *GetInboundUserRequest) String() string {
 func (*GetInboundUserRequest) ProtoMessage() {}
 
 func (x *GetInboundUserRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[8]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[10]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -400,7 +490,7 @@ func (x *GetInboundUserRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use GetInboundUserRequest.ProtoReflect.Descriptor instead.
 func (*GetInboundUserRequest) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{8}
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{10}
 }
 
 func (x *GetInboundUserRequest) GetTag() string {
@@ -427,7 +517,7 @@ type GetInboundUserResponse struct {
 
 func (x *GetInboundUserResponse) Reset() {
 	*x = GetInboundUserResponse{}
-	mi := &file_app_proxyman_command_command_proto_msgTypes[9]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[11]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -439,7 +529,7 @@ func (x *GetInboundUserResponse) String() string {
 func (*GetInboundUserResponse) ProtoMessage() {}
 
 func (x *GetInboundUserResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[9]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[11]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -452,7 +542,7 @@ func (x *GetInboundUserResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use GetInboundUserResponse.ProtoReflect.Descriptor instead.
 func (*GetInboundUserResponse) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{9}
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{11}
 }
 
 func (x *GetInboundUserResponse) GetUsers() []*protocol.User {
@@ -472,7 +562,7 @@ type GetInboundUsersCountResponse struct {
 
 func (x *GetInboundUsersCountResponse) Reset() {
 	*x = GetInboundUsersCountResponse{}
-	mi := &file_app_proxyman_command_command_proto_msgTypes[10]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[12]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -484,7 +574,7 @@ func (x *GetInboundUsersCountResponse) String() string {
 func (*GetInboundUsersCountResponse) ProtoMessage() {}
 
 func (x *GetInboundUsersCountResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[10]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[12]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -497,7 +587,7 @@ func (x *GetInboundUsersCountResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use GetInboundUsersCountResponse.ProtoReflect.Descriptor instead.
 func (*GetInboundUsersCountResponse) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{10}
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{12}
 }
 
 func (x *GetInboundUsersCountResponse) GetCount() int64 {
@@ -517,7 +607,7 @@ type AddOutboundRequest struct {
 
 func (x *AddOutboundRequest) Reset() {
 	*x = AddOutboundRequest{}
-	mi := &file_app_proxyman_command_command_proto_msgTypes[11]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[13]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -529,7 +619,7 @@ func (x *AddOutboundRequest) String() string {
 func (*AddOutboundRequest) ProtoMessage() {}
 
 func (x *AddOutboundRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[11]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[13]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -542,7 +632,7 @@ func (x *AddOutboundRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use AddOutboundRequest.ProtoReflect.Descriptor instead.
 func (*AddOutboundRequest) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{11}
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{13}
 }
 
 func (x *AddOutboundRequest) GetOutbound() *core.OutboundHandlerConfig {
@@ -560,7 +650,7 @@ type AddOutboundResponse struct {
 
 func (x *AddOutboundResponse) Reset() {
 	*x = AddOutboundResponse{}
-	mi := &file_app_proxyman_command_command_proto_msgTypes[12]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[14]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -572,7 +662,7 @@ func (x *AddOutboundResponse) String() string {
 func (*AddOutboundResponse) ProtoMessage() {}
 
 func (x *AddOutboundResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[12]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[14]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -585,7 +675,7 @@ func (x *AddOutboundResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use AddOutboundResponse.ProtoReflect.Descriptor instead.
 func (*AddOutboundResponse) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{12}
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{14}
 }
 
 type RemoveOutboundRequest struct {
@@ -598,7 +688,7 @@ type RemoveOutboundRequest struct {
 
 func (x *RemoveOutboundRequest) Reset() {
 	*x = RemoveOutboundRequest{}
-	mi := &file_app_proxyman_command_command_proto_msgTypes[13]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[15]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -610,7 +700,7 @@ func (x *RemoveOutboundRequest) String() string {
 func (*RemoveOutboundRequest) ProtoMessage() {}
 
 func (x *RemoveOutboundRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[13]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[15]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -623,7 +713,7 @@ func (x *RemoveOutboundRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use RemoveOutboundRequest.ProtoReflect.Descriptor instead.
 func (*RemoveOutboundRequest) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{13}
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{15}
 }
 
 func (x *RemoveOutboundRequest) GetTag() string {
@@ -641,7 +731,7 @@ type RemoveOutboundResponse struct {
 
 func (x *RemoveOutboundResponse) Reset() {
 	*x = RemoveOutboundResponse{}
-	mi := &file_app_proxyman_command_command_proto_msgTypes[14]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[16]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -653,7 +743,7 @@ func (x *RemoveOutboundResponse) String() string {
 func (*RemoveOutboundResponse) ProtoMessage() {}
 
 func (x *RemoveOutboundResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[14]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[16]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -666,7 +756,7 @@ func (x *RemoveOutboundResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use RemoveOutboundResponse.ProtoReflect.Descriptor instead.
 func (*RemoveOutboundResponse) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{14}
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{16}
 }
 
 type AlterOutboundRequest struct {
@@ -680,7 +770,7 @@ type AlterOutboundRequest struct {
 
 func (x *AlterOutboundRequest) Reset() {
 	*x = AlterOutboundRequest{}
-	mi := &file_app_proxyman_command_command_proto_msgTypes[15]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[17]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -692,7 +782,7 @@ func (x *AlterOutboundRequest) String() string {
 func (*AlterOutboundRequest) ProtoMessage() {}
 
 func (x *AlterOutboundRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[15]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[17]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -705,7 +795,7 @@ func (x *AlterOutboundRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use AlterOutboundRequest.ProtoReflect.Descriptor instead.
 func (*AlterOutboundRequest) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{15}
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{17}
 }
 
 func (x *AlterOutboundRequest) GetTag() string {
@@ -730,7 +820,7 @@ type AlterOutboundResponse struct {
 
 func (x *AlterOutboundResponse) Reset() {
 	*x = AlterOutboundResponse{}
-	mi := &file_app_proxyman_command_command_proto_msgTypes[16]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[18]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -742,7 +832,7 @@ func (x *AlterOutboundResponse) String() string {
 func (*AlterOutboundResponse) ProtoMessage() {}
 
 func (x *AlterOutboundResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[16]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[18]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -755,7 +845,88 @@ func (x *AlterOutboundResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use AlterOutboundResponse.ProtoReflect.Descriptor instead.
 func (*AlterOutboundResponse) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{16}
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{18}
+}
+
+type ListOutboundsRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *ListOutboundsRequest) Reset() {
+	*x = ListOutboundsRequest{}
+	mi := &file_app_proxyman_command_command_proto_msgTypes[19]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *ListOutboundsRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ListOutboundsRequest) ProtoMessage() {}
+
+func (x *ListOutboundsRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_app_proxyman_command_command_proto_msgTypes[19]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ListOutboundsRequest.ProtoReflect.Descriptor instead.
+func (*ListOutboundsRequest) Descriptor() ([]byte, []int) {
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{19}
+}
+
+type ListOutboundsResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Outbounds []*core.OutboundHandlerConfig `protobuf:"bytes,1,rep,name=outbounds,proto3" json:"outbounds,omitempty"`
+}
+
+func (x *ListOutboundsResponse) Reset() {
+	*x = ListOutboundsResponse{}
+	mi := &file_app_proxyman_command_command_proto_msgTypes[20]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *ListOutboundsResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ListOutboundsResponse) ProtoMessage() {}
+
+func (x *ListOutboundsResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_app_proxyman_command_command_proto_msgTypes[20]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ListOutboundsResponse.ProtoReflect.Descriptor instead.
+func (*ListOutboundsResponse) Descriptor() ([]byte, []int) {
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{20}
+}
+
+func (x *ListOutboundsResponse) GetOutbounds() []*core.OutboundHandlerConfig {
+	if x != nil {
+		return x.Outbounds
+	}
+	return nil
 }
 
 type Config struct {
@@ -766,7 +937,7 @@ type Config struct {
 
 func (x *Config) Reset() {
 	*x = Config{}
-	mi := &file_app_proxyman_command_command_proto_msgTypes[17]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[21]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -778,7 +949,7 @@ func (x *Config) String() string {
 func (*Config) ProtoMessage() {}
 
 func (x *Config) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_command_command_proto_msgTypes[17]
+	mi := &file_app_proxyman_command_command_proto_msgTypes[21]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -791,7 +962,7 @@ func (x *Config) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Config.ProtoReflect.Descriptor instead.
 func (*Config) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{17}
+	return file_app_proxyman_command_command_proto_rawDescGZIP(), []int{21}
 }
 
 var File_app_proxyman_command_command_proto protoreflect.FileDescriptor
@@ -831,61 +1002,84 @@ var file_app_proxyman_command_command_proto_rawDesc = []byte{
 	0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x73, 0x65, 0x72, 0x69, 0x61, 0x6c, 0x2e, 0x54, 0x79, 0x70,
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+	0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x42, 0x6d, 0x0a, 0x1d, 0x63, 0x6f,
+	0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79,
+	0x6d, 0x61, 0x6e, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x50, 0x01, 0x5a, 0x2e, 0x67,
+	0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78,
+	0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x61, 0x70, 0x70, 0x2f, 0x70, 0x72, 0x6f,
+	0x78, 0x79, 0x6d, 0x61, 0x6e, 0x2f, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0xaa, 0x02, 0x19,
+	0x58, 0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61,
+	0x6e, 0x2e, 0x43, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f,
+	0x33,
 }
 
 var (
@@ -946,7 +1148,7 @@ func file_app_proxyman_command_command_proto_rawDescGZIP() []byte {
 	return file_app_proxyman_command_command_proto_rawDescData
 }
 
-var file_app_proxyman_command_command_proto_msgTypes = make([]protoimpl.MessageInfo, 18)
+var file_app_proxyman_command_command_proto_msgTypes = make([]protoimpl.MessageInfo, 22)
 var file_app_proxyman_command_command_proto_goTypes = []any{
 	(*AddUserOperation)(nil),             // 0: xray.app.proxyman.command.AddUserOperation
 	(*RemoveUserOperation)(nil),          // 1: xray.app.proxyman.command.RemoveUserOperation
@@ -956,49 +1158,59 @@ var file_app_proxyman_command_command_proto_goTypes = []any{
 	(*RemoveInboundResponse)(nil),        // 5: xray.app.proxyman.command.RemoveInboundResponse
 	(*AlterInboundRequest)(nil),          // 6: xray.app.proxyman.command.AlterInboundRequest
 	(*AlterInboundResponse)(nil),         // 7: xray.app.proxyman.command.AlterInboundResponse
-	(*GetInboundUserRequest)(nil),        // 8: xray.app.proxyman.command.GetInboundUserRequest
-	(*GetInboundUserResponse)(nil),       // 9: xray.app.proxyman.command.GetInboundUserResponse
-	(*GetInboundUsersCountResponse)(nil), // 10: xray.app.proxyman.command.GetInboundUsersCountResponse
-	(*AddOutboundRequest)(nil),           // 11: xray.app.proxyman.command.AddOutboundRequest
-	(*AddOutboundResponse)(nil),          // 12: xray.app.proxyman.command.AddOutboundResponse
-	(*RemoveOutboundRequest)(nil),        // 13: xray.app.proxyman.command.RemoveOutboundRequest
-	(*RemoveOutboundResponse)(nil),       // 14: xray.app.proxyman.command.RemoveOutboundResponse
-	(*AlterOutboundRequest)(nil),         // 15: xray.app.proxyman.command.AlterOutboundRequest
-	(*AlterOutboundResponse)(nil),        // 16: xray.app.proxyman.command.AlterOutboundResponse
-	(*Config)(nil),                       // 17: xray.app.proxyman.command.Config
-	(*protocol.User)(nil),                // 18: xray.common.protocol.User
-	(*core.InboundHandlerConfig)(nil),    // 19: xray.core.InboundHandlerConfig
-	(*serial.TypedMessage)(nil),          // 20: xray.common.serial.TypedMessage
-	(*core.OutboundHandlerConfig)(nil),   // 21: xray.core.OutboundHandlerConfig
+	(*ListInboundsRequest)(nil),          // 8: xray.app.proxyman.command.ListInboundsRequest
+	(*ListInboundsResponse)(nil),         // 9: xray.app.proxyman.command.ListInboundsResponse
+	(*GetInboundUserRequest)(nil),        // 10: xray.app.proxyman.command.GetInboundUserRequest
+	(*GetInboundUserResponse)(nil),       // 11: xray.app.proxyman.command.GetInboundUserResponse
+	(*GetInboundUsersCountResponse)(nil), // 12: xray.app.proxyman.command.GetInboundUsersCountResponse
+	(*AddOutboundRequest)(nil),           // 13: xray.app.proxyman.command.AddOutboundRequest
+	(*AddOutboundResponse)(nil),          // 14: xray.app.proxyman.command.AddOutboundResponse
+	(*RemoveOutboundRequest)(nil),        // 15: xray.app.proxyman.command.RemoveOutboundRequest
+	(*RemoveOutboundResponse)(nil),       // 16: xray.app.proxyman.command.RemoveOutboundResponse
+	(*AlterOutboundRequest)(nil),         // 17: xray.app.proxyman.command.AlterOutboundRequest
+	(*AlterOutboundResponse)(nil),        // 18: xray.app.proxyman.command.AlterOutboundResponse
+	(*ListOutboundsRequest)(nil),         // 19: xray.app.proxyman.command.ListOutboundsRequest
+	(*ListOutboundsResponse)(nil),        // 20: xray.app.proxyman.command.ListOutboundsResponse
+	(*Config)(nil),                       // 21: xray.app.proxyman.command.Config
+	(*protocol.User)(nil),                // 22: xray.common.protocol.User
+	(*core.InboundHandlerConfig)(nil),    // 23: xray.core.InboundHandlerConfig
+	(*serial.TypedMessage)(nil),          // 24: xray.common.serial.TypedMessage
+	(*core.OutboundHandlerConfig)(nil),   // 25: xray.core.OutboundHandlerConfig
 }
 var file_app_proxyman_command_command_proto_depIdxs = []int32{
-	18, // 0: xray.app.proxyman.command.AddUserOperation.user:type_name -> xray.common.protocol.User
-	19, // 1: xray.app.proxyman.command.AddInboundRequest.inbound:type_name -> xray.core.InboundHandlerConfig
-	20, // 2: xray.app.proxyman.command.AlterInboundRequest.operation:type_name -> xray.common.serial.TypedMessage
-	18, // 3: xray.app.proxyman.command.GetInboundUserResponse.users:type_name -> xray.common.protocol.User
-	21, // 4: xray.app.proxyman.command.AddOutboundRequest.outbound:type_name -> xray.core.OutboundHandlerConfig
-	20, // 5: xray.app.proxyman.command.AlterOutboundRequest.operation:type_name -> xray.common.serial.TypedMessage
-	2,  // 6: xray.app.proxyman.command.HandlerService.AddInbound:input_type -> xray.app.proxyman.command.AddInboundRequest
-	4,  // 7: xray.app.proxyman.command.HandlerService.RemoveInbound:input_type -> xray.app.proxyman.command.RemoveInboundRequest
-	6,  // 8: xray.app.proxyman.command.HandlerService.AlterInbound:input_type -> xray.app.proxyman.command.AlterInboundRequest
-	8,  // 9: xray.app.proxyman.command.HandlerService.GetInboundUsers:input_type -> xray.app.proxyman.command.GetInboundUserRequest
-	8,  // 10: xray.app.proxyman.command.HandlerService.GetInboundUsersCount:input_type -> xray.app.proxyman.command.GetInboundUserRequest
-	11, // 11: xray.app.proxyman.command.HandlerService.AddOutbound:input_type -> xray.app.proxyman.command.AddOutboundRequest
-	13, // 12: xray.app.proxyman.command.HandlerService.RemoveOutbound:input_type -> xray.app.proxyman.command.RemoveOutboundRequest
-	15, // 13: xray.app.proxyman.command.HandlerService.AlterOutbound:input_type -> xray.app.proxyman.command.AlterOutboundRequest
-	3,  // 14: xray.app.proxyman.command.HandlerService.AddInbound:output_type -> xray.app.proxyman.command.AddInboundResponse
-	5,  // 15: xray.app.proxyman.command.HandlerService.RemoveInbound:output_type -> xray.app.proxyman.command.RemoveInboundResponse
-	7,  // 16: xray.app.proxyman.command.HandlerService.AlterInbound:output_type -> xray.app.proxyman.command.AlterInboundResponse
-	9,  // 17: xray.app.proxyman.command.HandlerService.GetInboundUsers:output_type -> xray.app.proxyman.command.GetInboundUserResponse
-	10, // 18: xray.app.proxyman.command.HandlerService.GetInboundUsersCount:output_type -> xray.app.proxyman.command.GetInboundUsersCountResponse
-	12, // 19: xray.app.proxyman.command.HandlerService.AddOutbound:output_type -> xray.app.proxyman.command.AddOutboundResponse
-	14, // 20: xray.app.proxyman.command.HandlerService.RemoveOutbound:output_type -> xray.app.proxyman.command.RemoveOutboundResponse
-	16, // 21: xray.app.proxyman.command.HandlerService.AlterOutbound:output_type -> xray.app.proxyman.command.AlterOutboundResponse
-	14, // [14:22] is the sub-list for method output_type
-	6,  // [6:14] is the sub-list for method input_type
-	6,  // [6:6] is the sub-list for extension type_name
-	6,  // [6:6] is the sub-list for extension extendee
-	0,  // [0:6] is the sub-list for field type_name
+	22, // 0: xray.app.proxyman.command.AddUserOperation.user:type_name -> xray.common.protocol.User
+	23, // 1: xray.app.proxyman.command.AddInboundRequest.inbound:type_name -> xray.core.InboundHandlerConfig
+	24, // 2: xray.app.proxyman.command.AlterInboundRequest.operation:type_name -> xray.common.serial.TypedMessage
+	23, // 3: xray.app.proxyman.command.ListInboundsResponse.inbounds:type_name -> xray.core.InboundHandlerConfig
+	22, // 4: xray.app.proxyman.command.GetInboundUserResponse.users:type_name -> xray.common.protocol.User
+	25, // 5: xray.app.proxyman.command.AddOutboundRequest.outbound:type_name -> xray.core.OutboundHandlerConfig
+	24, // 6: xray.app.proxyman.command.AlterOutboundRequest.operation:type_name -> xray.common.serial.TypedMessage
+	25, // 7: xray.app.proxyman.command.ListOutboundsResponse.outbounds:type_name -> xray.core.OutboundHandlerConfig
+	2,  // 8: xray.app.proxyman.command.HandlerService.AddInbound:input_type -> xray.app.proxyman.command.AddInboundRequest
+	4,  // 9: xray.app.proxyman.command.HandlerService.RemoveInbound:input_type -> xray.app.proxyman.command.RemoveInboundRequest
+	6,  // 10: xray.app.proxyman.command.HandlerService.AlterInbound:input_type -> xray.app.proxyman.command.AlterInboundRequest
+	8,  // 11: xray.app.proxyman.command.HandlerService.ListInbounds:input_type -> xray.app.proxyman.command.ListInboundsRequest
+	10, // 12: xray.app.proxyman.command.HandlerService.GetInboundUsers:input_type -> xray.app.proxyman.command.GetInboundUserRequest
+	10, // 13: xray.app.proxyman.command.HandlerService.GetInboundUsersCount:input_type -> xray.app.proxyman.command.GetInboundUserRequest
+	13, // 14: xray.app.proxyman.command.HandlerService.AddOutbound:input_type -> xray.app.proxyman.command.AddOutboundRequest
+	15, // 15: xray.app.proxyman.command.HandlerService.RemoveOutbound:input_type -> xray.app.proxyman.command.RemoveOutboundRequest
+	17, // 16: xray.app.proxyman.command.HandlerService.AlterOutbound:input_type -> xray.app.proxyman.command.AlterOutboundRequest
+	19, // 17: xray.app.proxyman.command.HandlerService.ListOutbounds:input_type -> xray.app.proxyman.command.ListOutboundsRequest
+	3,  // 18: xray.app.proxyman.command.HandlerService.AddInbound:output_type -> xray.app.proxyman.command.AddInboundResponse
+	5,  // 19: xray.app.proxyman.command.HandlerService.RemoveInbound:output_type -> xray.app.proxyman.command.RemoveInboundResponse
+	7,  // 20: xray.app.proxyman.command.HandlerService.AlterInbound:output_type -> xray.app.proxyman.command.AlterInboundResponse
+	9,  // 21: xray.app.proxyman.command.HandlerService.ListInbounds:output_type -> xray.app.proxyman.command.ListInboundsResponse
+	11, // 22: xray.app.proxyman.command.HandlerService.GetInboundUsers:output_type -> xray.app.proxyman.command.GetInboundUserResponse
+	12, // 23: xray.app.proxyman.command.HandlerService.GetInboundUsersCount:output_type -> xray.app.proxyman.command.GetInboundUsersCountResponse
+	14, // 24: xray.app.proxyman.command.HandlerService.AddOutbound:output_type -> xray.app.proxyman.command.AddOutboundResponse
+	16, // 25: xray.app.proxyman.command.HandlerService.RemoveOutbound:output_type -> xray.app.proxyman.command.RemoveOutboundResponse
+	18, // 26: xray.app.proxyman.command.HandlerService.AlterOutbound:output_type -> xray.app.proxyman.command.AlterOutboundResponse
+	20, // 27: xray.app.proxyman.command.HandlerService.ListOutbounds:output_type -> xray.app.proxyman.command.ListOutboundsResponse
+	18, // [18:28] is the sub-list for method output_type
+	8,  // [8:18] is the sub-list for method input_type
+	8,  // [8:8] is the sub-list for extension type_name
+	8,  // [8:8] is the sub-list for extension extendee
+	0,  // [0:8] is the sub-list for field type_name
 }
 
 func init() { file_app_proxyman_command_command_proto_init() }
@@ -1012,7 +1224,7 @@ func file_app_proxyman_command_command_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_app_proxyman_command_command_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   18,
+			NumMessages:   22,
 			NumExtensions: 0,
 			NumServices:   1,
 		},

app/proxyman/command/command.proto

@@ -37,6 +37,14 @@ message AlterInboundRequest {
 
 message AlterInboundResponse {}
 
+message ListInboundsRequest {
+  bool isOnlyTags = 1;
+}
+
+message ListInboundsResponse {
+  repeated core.InboundHandlerConfig inbounds = 1;
+}
+
 message GetInboundUserRequest {
   string tag = 1;
   string email = 2;
@@ -69,6 +77,12 @@ message AlterOutboundRequest {
 
 message AlterOutboundResponse {}
 
+message ListOutboundsRequest {}
+
+message ListOutboundsResponse {
+  repeated core.OutboundHandlerConfig outbounds = 1;
+}
+
 service HandlerService {
   rpc AddInbound(AddInboundRequest) returns (AddInboundResponse) {}
 
@@ -76,6 +90,8 @@ service HandlerService {
 
   rpc AlterInbound(AlterInboundRequest) returns (AlterInboundResponse) {}
 
+  rpc ListInbounds(ListInboundsRequest) returns (ListInboundsResponse) {}
+
   rpc GetInboundUsers(GetInboundUserRequest) returns (GetInboundUserResponse) {}
 
   rpc GetInboundUsersCount(GetInboundUserRequest) returns (GetInboundUsersCountResponse) {}
@@ -85,6 +101,8 @@ service HandlerService {
   rpc RemoveOutbound(RemoveOutboundRequest) returns (RemoveOutboundResponse) {}
 
   rpc AlterOutbound(AlterOutboundRequest) returns (AlterOutboundResponse) {}
+
+  rpc ListOutbounds(ListOutboundsRequest) returns (ListOutboundsResponse) {}
 }
 
 message Config {}

app/proxyman/command/command_grpc.pb.go

@@ -22,11 +22,13 @@ const (
 	HandlerService_AddInbound_FullMethodName           = "/xray.app.proxyman.command.HandlerService/AddInbound"
 	HandlerService_RemoveInbound_FullMethodName        = "/xray.app.proxyman.command.HandlerService/RemoveInbound"
 	HandlerService_AlterInbound_FullMethodName         = "/xray.app.proxyman.command.HandlerService/AlterInbound"
+	HandlerService_ListInbounds_FullMethodName         = "/xray.app.proxyman.command.HandlerService/ListInbounds"
 	HandlerService_GetInboundUsers_FullMethodName      = "/xray.app.proxyman.command.HandlerService/GetInboundUsers"
 	HandlerService_GetInboundUsersCount_FullMethodName = "/xray.app.proxyman.command.HandlerService/GetInboundUsersCount"
 	HandlerService_AddOutbound_FullMethodName          = "/xray.app.proxyman.command.HandlerService/AddOutbound"
 	HandlerService_RemoveOutbound_FullMethodName       = "/xray.app.proxyman.command.HandlerService/RemoveOutbound"
 	HandlerService_AlterOutbound_FullMethodName        = "/xray.app.proxyman.command.HandlerService/AlterOutbound"
+	HandlerService_ListOutbounds_FullMethodName        = "/xray.app.proxyman.command.HandlerService/ListOutbounds"
 )
 
 // HandlerServiceClient is the client API for HandlerService service.
@@ -36,11 +38,13 @@ type HandlerServiceClient interface {
 	AddInbound(ctx context.Context, in *AddInboundRequest, opts ...grpc.CallOption) (*AddInboundResponse, error)
 	RemoveInbound(ctx context.Context, in *RemoveInboundRequest, opts ...grpc.CallOption) (*RemoveInboundResponse, error)
 	AlterInbound(ctx context.Context, in *AlterInboundRequest, opts ...grpc.CallOption) (*AlterInboundResponse, error)
+	ListInbounds(ctx context.Context, in *ListInboundsRequest, opts ...grpc.CallOption) (*ListInboundsResponse, error)
 	GetInboundUsers(ctx context.Context, in *GetInboundUserRequest, opts ...grpc.CallOption) (*GetInboundUserResponse, error)
 	GetInboundUsersCount(ctx context.Context, in *GetInboundUserRequest, opts ...grpc.CallOption) (*GetInboundUsersCountResponse, error)
 	AddOutbound(ctx context.Context, in *AddOutboundRequest, opts ...grpc.CallOption) (*AddOutboundResponse, error)
 	RemoveOutbound(ctx context.Context, in *RemoveOutboundRequest, opts ...grpc.CallOption) (*RemoveOutboundResponse, error)
 	AlterOutbound(ctx context.Context, in *AlterOutboundRequest, opts ...grpc.CallOption) (*AlterOutboundResponse, error)
+	ListOutbounds(ctx context.Context, in *ListOutboundsRequest, opts ...grpc.CallOption) (*ListOutboundsResponse, error)
 }
 
 type handlerServiceClient struct {
@@ -81,6 +85,16 @@ func (c *handlerServiceClient) AlterInbound(ctx context.Context, in *AlterInboun
 	return out, nil
 }
 
+func (c *handlerServiceClient) ListInbounds(ctx context.Context, in *ListInboundsRequest, opts ...grpc.CallOption) (*ListInboundsResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(ListInboundsResponse)
+	err := c.cc.Invoke(ctx, HandlerService_ListInbounds_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 func (c *handlerServiceClient) GetInboundUsers(ctx context.Context, in *GetInboundUserRequest, opts ...grpc.CallOption) (*GetInboundUserResponse, error) {
 	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
 	out := new(GetInboundUserResponse)
@@ -131,6 +145,16 @@ func (c *handlerServiceClient) AlterOutbound(ctx context.Context, in *AlterOutbo
 	return out, nil
 }
 
+func (c *handlerServiceClient) ListOutbounds(ctx context.Context, in *ListOutboundsRequest, opts ...grpc.CallOption) (*ListOutboundsResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(ListOutboundsResponse)
+	err := c.cc.Invoke(ctx, HandlerService_ListOutbounds_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 // HandlerServiceServer is the server API for HandlerService service.
 // All implementations must embed UnimplementedHandlerServiceServer
 // for forward compatibility.
@@ -138,11 +162,13 @@ type HandlerServiceServer interface {
 	AddInbound(context.Context, *AddInboundRequest) (*AddInboundResponse, error)
 	RemoveInbound(context.Context, *RemoveInboundRequest) (*RemoveInboundResponse, error)
 	AlterInbound(context.Context, *AlterInboundRequest) (*AlterInboundResponse, error)
+	ListInbounds(context.Context, *ListInboundsRequest) (*ListInboundsResponse, error)
 	GetInboundUsers(context.Context, *GetInboundUserRequest) (*GetInboundUserResponse, error)
 	GetInboundUsersCount(context.Context, *GetInboundUserRequest) (*GetInboundUsersCountResponse, error)
 	AddOutbound(context.Context, *AddOutboundRequest) (*AddOutboundResponse, error)
 	RemoveOutbound(context.Context, *RemoveOutboundRequest) (*RemoveOutboundResponse, error)
 	AlterOutbound(context.Context, *AlterOutboundRequest) (*AlterOutboundResponse, error)
+	ListOutbounds(context.Context, *ListOutboundsRequest) (*ListOutboundsResponse, error)
 	mustEmbedUnimplementedHandlerServiceServer()
 }
 
@@ -162,6 +188,9 @@ func (UnimplementedHandlerServiceServer) RemoveInbound(context.Context, *RemoveI
 func (UnimplementedHandlerServiceServer) AlterInbound(context.Context, *AlterInboundRequest) (*AlterInboundResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method AlterInbound not implemented")
 }
+func (UnimplementedHandlerServiceServer) ListInbounds(context.Context, *ListInboundsRequest) (*ListInboundsResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method ListInbounds not implemented")
+}
 func (UnimplementedHandlerServiceServer) GetInboundUsers(context.Context, *GetInboundUserRequest) (*GetInboundUserResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method GetInboundUsers not implemented")
 }
@@ -177,6 +206,9 @@ func (UnimplementedHandlerServiceServer) RemoveOutbound(context.Context, *Remove
 func (UnimplementedHandlerServiceServer) AlterOutbound(context.Context, *AlterOutboundRequest) (*AlterOutboundResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method AlterOutbound not implemented")
 }
+func (UnimplementedHandlerServiceServer) ListOutbounds(context.Context, *ListOutboundsRequest) (*ListOutboundsResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method ListOutbounds not implemented")
+}
 func (UnimplementedHandlerServiceServer) mustEmbedUnimplementedHandlerServiceServer() {}
 func (UnimplementedHandlerServiceServer) testEmbeddedByValue()                        {}
 
@@ -252,6 +284,24 @@ func _HandlerService_AlterInbound_Handler(srv interface{}, ctx context.Context,
 	return interceptor(ctx, in, info, handler)
 }
 
+func _HandlerService_ListInbounds_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(ListInboundsRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(HandlerServiceServer).ListInbounds(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: HandlerService_ListInbounds_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(HandlerServiceServer).ListInbounds(ctx, req.(*ListInboundsRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 func _HandlerService_GetInboundUsers_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
 	in := new(GetInboundUserRequest)
 	if err := dec(in); err != nil {
@@ -342,6 +392,24 @@ func _HandlerService_AlterOutbound_Handler(srv interface{}, ctx context.Context,
 	return interceptor(ctx, in, info, handler)
 }
 
+func _HandlerService_ListOutbounds_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(ListOutboundsRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(HandlerServiceServer).ListOutbounds(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: HandlerService_ListOutbounds_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(HandlerServiceServer).ListOutbounds(ctx, req.(*ListOutboundsRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 // HandlerService_ServiceDesc is the grpc.ServiceDesc for HandlerService service.
 // It's only intended for direct use with grpc.RegisterService,
 // and not to be introspected or modified (even as a copy)
@@ -361,6 +429,10 @@ var HandlerService_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "AlterInbound",
 			Handler:    _HandlerService_AlterInbound_Handler,
 		},
+		{
+			MethodName: "ListInbounds",
+			Handler:    _HandlerService_ListInbounds_Handler,
+		},
 		{
 			MethodName: "GetInboundUsers",
 			Handler:    _HandlerService_GetInboundUsers_Handler,
@@ -381,6 +453,10 @@ var HandlerService_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "AlterOutbound",
 			Handler:    _HandlerService_AlterOutbound_Handler,
 		},
+		{
+			MethodName: "ListOutbounds",
+			Handler:    _HandlerService_ListOutbounds_Handler,
+		},
 	},
 	Streams:  []grpc.StreamDesc{},
 	Metadata: "app/proxyman/command/command.proto",

app/proxyman/config.pb.go

@@ -449,11 +449,12 @@ type SenderConfig struct {
 	unknownFields protoimpl.UnknownFields
 
 	// Send traffic through the given IP. Only IP is allowed.
-	Via               *net.IPOrDomain        `protobuf:"bytes,1,opt,name=via,proto3" json:"via,omitempty"`
-	StreamSettings    *internet.StreamConfig `protobuf:"bytes,2,opt,name=stream_settings,json=streamSettings,proto3" json:"stream_settings,omitempty"`
-	ProxySettings     *internet.ProxyConfig  `protobuf:"bytes,3,opt,name=proxy_settings,json=proxySettings,proto3" json:"proxy_settings,omitempty"`
-	MultiplexSettings *MultiplexingConfig    `protobuf:"bytes,4,opt,name=multiplex_settings,json=multiplexSettings,proto3" json:"multiplex_settings,omitempty"`
-	ViaCidr           string                 `protobuf:"bytes,5,opt,name=via_cidr,json=viaCidr,proto3" json:"via_cidr,omitempty"`
+	Via               *net.IPOrDomain         `protobuf:"bytes,1,opt,name=via,proto3" json:"via,omitempty"`
+	StreamSettings    *internet.StreamConfig  `protobuf:"bytes,2,opt,name=stream_settings,json=streamSettings,proto3" json:"stream_settings,omitempty"`
+	ProxySettings     *internet.ProxyConfig   `protobuf:"bytes,3,opt,name=proxy_settings,json=proxySettings,proto3" json:"proxy_settings,omitempty"`
+	MultiplexSettings *MultiplexingConfig     `protobuf:"bytes,4,opt,name=multiplex_settings,json=multiplexSettings,proto3" json:"multiplex_settings,omitempty"`
+	ViaCidr           string                  `protobuf:"bytes,5,opt,name=via_cidr,json=viaCidr,proto3" json:"via_cidr,omitempty"`
+	TargetStrategy    internet.DomainStrategy `protobuf:"varint,6,opt,name=target_strategy,json=targetStrategy,proto3,enum=xray.transport.internet.DomainStrategy" json:"target_strategy,omitempty"`
 }
 
 func (x *SenderConfig) Reset() {
@@ -521,6 +522,13 @@ func (x *SenderConfig) GetViaCidr() string {
 	return ""
 }
 
+func (x *SenderConfig) GetTargetStrategy() internet.DomainStrategy {
+	if x != nil {
+		return x.TargetStrategy
+	}
+	return internet.DomainStrategy(0)
+}
+
 type MultiplexingConfig struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -779,7 +787,7 @@ var file_app_proxyman_config_proto_rawDesc = []byte{
 	0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x73, 0x65, 0x72, 0x69, 0x61, 0x6c, 0x2e, 0x54, 0x79, 0x70, 0x65,
 	0x64, 0x4d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x52, 0x0d, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x53,
 	0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x22, 0x10, 0x0a, 0x0e, 0x4f, 0x75, 0x74, 0x62, 0x6f,
-	0x75, 0x6e, 0x64, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x22, 0xcb, 0x02, 0x0a, 0x0c, 0x53, 0x65,
+	0x75, 0x6e, 0x64, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x22, 0x9d, 0x03, 0x0a, 0x0c, 0x53, 0x65,
 	0x6e, 0x64, 0x65, 0x72, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x2d, 0x0a, 0x03, 0x76, 0x69,
 	0x61, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x1b, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x63,
 	0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x6e, 0x65, 0x74, 0x2e, 0x49, 0x50, 0x4f, 0x72, 0x44, 0x6f,
@@ -800,23 +808,28 @@ var file_app_proxyman_config_proto_rawDesc = []byte{
 	0x69, 0x6e, 0x67, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x52, 0x11, 0x6d, 0x75, 0x6c, 0x74, 0x69,
 	0x70, 0x6c, 0x65, 0x78, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x12, 0x19, 0x0a, 0x08,
 	0x76, 0x69, 0x61, 0x5f, 0x63, 0x69, 0x64, 0x72, 0x18, 0x05, 0x20, 0x01, 0x28, 0x09, 0x52, 0x07,
-	0x76, 0x69, 0x61, 0x43, 0x69, 0x64, 0x72, 0x22, 0xa4, 0x01, 0x0a, 0x12, 0x4d, 0x75, 0x6c, 0x74,
-	0x69, 0x70, 0x6c, 0x65, 0x78, 0x69, 0x6e, 0x67, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x18,
-	0x0a, 0x07, 0x65, 0x6e, 0x61, 0x62, 0x6c, 0x65, 0x64, 0x18, 0x01, 0x20, 0x01, 0x28, 0x08, 0x52,
-	0x07, 0x65, 0x6e, 0x61, 0x62, 0x6c, 0x65, 0x64, 0x12, 0x20, 0x0a, 0x0b, 0x63, 0x6f, 0x6e, 0x63,
-	0x75, 0x72, 0x72, 0x65, 0x6e, 0x63, 0x79, 0x18, 0x02, 0x20, 0x01, 0x28, 0x05, 0x52, 0x0b, 0x63,
-	0x6f, 0x6e, 0x63, 0x75, 0x72, 0x72, 0x65, 0x6e, 0x63, 0x79, 0x12, 0x28, 0x0a, 0x0f, 0x78, 0x75,
-	0x64, 0x70, 0x43, 0x6f, 0x6e, 0x63, 0x75, 0x72, 0x72, 0x65, 0x6e, 0x63, 0x79, 0x18, 0x03, 0x20,
-	0x01, 0x28, 0x05, 0x52, 0x0f, 0x78, 0x75, 0x64, 0x70, 0x43, 0x6f, 0x6e, 0x63, 0x75, 0x72, 0x72,
-	0x65, 0x6e, 0x63, 0x79, 0x12, 0x28, 0x0a, 0x0f, 0x78, 0x75, 0x64, 0x70, 0x50, 0x72, 0x6f, 0x78,
-	0x79, 0x55, 0x44, 0x50, 0x34, 0x34, 0x33, 0x18, 0x04, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0f, 0x78,
-	0x75, 0x64, 0x70, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x55, 0x44, 0x50, 0x34, 0x34, 0x33, 0x42, 0x55,
-	0x0a, 0x15, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x70,
-	0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e, 0x50, 0x01, 0x5a, 0x26, 0x67, 0x69, 0x74, 0x68, 0x75,
-	0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d,
-	0x63, 0x6f, 0x72, 0x65, 0x2f, 0x61, 0x70, 0x70, 0x2f, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61,
-	0x6e, 0xaa, 0x02, 0x11, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x50, 0x72, 0x6f,
-	0x78, 0x79, 0x6d, 0x61, 0x6e, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+	0x76, 0x69, 0x61, 0x43, 0x69, 0x64, 0x72, 0x12, 0x50, 0x0a, 0x0f, 0x74, 0x61, 0x72, 0x67, 0x65,
+	0x74, 0x5f, 0x73, 0x74, 0x72, 0x61, 0x74, 0x65, 0x67, 0x79, 0x18, 0x06, 0x20, 0x01, 0x28, 0x0e,
+	0x32, 0x27, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72,
+	0x74, 0x2e, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2e, 0x44, 0x6f, 0x6d, 0x61, 0x69,
+	0x6e, 0x53, 0x74, 0x72, 0x61, 0x74, 0x65, 0x67, 0x79, 0x52, 0x0e, 0x74, 0x61, 0x72, 0x67, 0x65,
+	0x74, 0x53, 0x74, 0x72, 0x61, 0x74, 0x65, 0x67, 0x79, 0x22, 0xa4, 0x01, 0x0a, 0x12, 0x4d, 0x75,
+	0x6c, 0x74, 0x69, 0x70, 0x6c, 0x65, 0x78, 0x69, 0x6e, 0x67, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67,
+	0x12, 0x18, 0x0a, 0x07, 0x65, 0x6e, 0x61, 0x62, 0x6c, 0x65, 0x64, 0x18, 0x01, 0x20, 0x01, 0x28,
+	0x08, 0x52, 0x07, 0x65, 0x6e, 0x61, 0x62, 0x6c, 0x65, 0x64, 0x12, 0x20, 0x0a, 0x0b, 0x63, 0x6f,
+	0x6e, 0x63, 0x75, 0x72, 0x72, 0x65, 0x6e, 0x63, 0x79, 0x18, 0x02, 0x20, 0x01, 0x28, 0x05, 0x52,
+	0x0b, 0x63, 0x6f, 0x6e, 0x63, 0x75, 0x72, 0x72, 0x65, 0x6e, 0x63, 0x79, 0x12, 0x28, 0x0a, 0x0f,
+	0x78, 0x75, 0x64, 0x70, 0x43, 0x6f, 0x6e, 0x63, 0x75, 0x72, 0x72, 0x65, 0x6e, 0x63, 0x79, 0x18,
+	0x03, 0x20, 0x01, 0x28, 0x05, 0x52, 0x0f, 0x78, 0x75, 0x64, 0x70, 0x43, 0x6f, 0x6e, 0x63, 0x75,
+	0x72, 0x72, 0x65, 0x6e, 0x63, 0x79, 0x12, 0x28, 0x0a, 0x0f, 0x78, 0x75, 0x64, 0x70, 0x50, 0x72,
+	0x6f, 0x78, 0x79, 0x55, 0x44, 0x50, 0x34, 0x34, 0x33, 0x18, 0x04, 0x20, 0x01, 0x28, 0x09, 0x52,
+	0x0f, 0x78, 0x75, 0x64, 0x70, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x55, 0x44, 0x50, 0x34, 0x34, 0x33,
+	0x42, 0x55, 0x0a, 0x15, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70,
+	0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e, 0x50, 0x01, 0x5a, 0x26, 0x67, 0x69, 0x74,
+	0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61,
+	0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x61, 0x70, 0x70, 0x2f, 0x70, 0x72, 0x6f, 0x78, 0x79,
+	0x6d, 0x61, 0x6e, 0xaa, 0x02, 0x11, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x50,
+	0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -850,6 +863,7 @@ var file_app_proxyman_config_proto_goTypes = []any{
 	(*internet.StreamConfig)(nil),                            // 13: xray.transport.internet.StreamConfig
 	(*serial.TypedMessage)(nil),                              // 14: xray.common.serial.TypedMessage
 	(*internet.ProxyConfig)(nil),                             // 15: xray.transport.internet.ProxyConfig
+	(internet.DomainStrategy)(0),                             // 16: xray.transport.internet.DomainStrategy
 }
 var file_app_proxyman_config_proto_depIdxs = []int32{
 	0,  // 0: xray.app.proxyman.AllocationStrategy.type:type_name -> xray.app.proxyman.AllocationStrategy.Type
@@ -866,11 +880,12 @@ var file_app_proxyman_config_proto_depIdxs = []int32{
 	13, // 11: xray.app.proxyman.SenderConfig.stream_settings:type_name -> xray.transport.internet.StreamConfig
 	15, // 12: xray.app.proxyman.SenderConfig.proxy_settings:type_name -> xray.transport.internet.ProxyConfig
 	8,  // 13: xray.app.proxyman.SenderConfig.multiplex_settings:type_name -> xray.app.proxyman.MultiplexingConfig
-	14, // [14:14] is the sub-list for method output_type
-	14, // [14:14] is the sub-list for method input_type
-	14, // [14:14] is the sub-list for extension type_name
-	14, // [14:14] is the sub-list for extension extendee
-	0,  // [0:14] is the sub-list for field type_name
+	16, // 14: xray.app.proxyman.SenderConfig.target_strategy:type_name -> xray.transport.internet.DomainStrategy
+	15, // [15:15] is the sub-list for method output_type
+	15, // [15:15] is the sub-list for method input_type
+	15, // [15:15] is the sub-list for extension type_name
+	15, // [15:15] is the sub-list for extension extendee
+	0,  // [0:15] is the sub-list for field type_name
 }
 
 func init() { file_app_proxyman_config_proto_init() }

app/proxyman/config.proto

@@ -84,6 +84,7 @@ message SenderConfig {
   xray.transport.internet.ProxyConfig proxy_settings = 3;
   MultiplexingConfig multiplex_settings = 4;
   string via_cidr = 5;
+  xray.transport.internet.DomainStrategy target_strategy = 6;
 }
 
 message MultiplexingConfig {

app/proxyman/inbound/always.go

@@ -9,11 +9,13 @@ import (
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/mux"
 	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/serial"
 	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/policy"
 	"github.com/xtls/xray-core/features/stats"
 	"github.com/xtls/xray-core/proxy"
 	"github.com/xtls/xray-core/transport/internet"
+	"google.golang.org/protobuf/proto"
 )
 
 func getStatCounter(v *core.Instance, tag string) (stats.Counter, stats.Counter) {
@@ -42,10 +44,12 @@ func getStatCounter(v *core.Instance, tag string) (stats.Counter, stats.Counter)
 }
 
 type AlwaysOnInboundHandler struct {
-	proxy   proxy.Inbound
-	workers []worker
-	mux     *mux.Server
-	tag     string
+	proxyConfig    interface{}
+	receiverConfig *proxyman.ReceiverConfig
+	proxy          proxy.Inbound
+	workers        []worker
+	mux            *mux.Server
+	tag            string
 }
 
 func NewAlwaysOnInboundHandler(ctx context.Context, tag string, receiverConfig *proxyman.ReceiverConfig, proxyConfig interface{}) (*AlwaysOnInboundHandler, error) {
@@ -59,9 +63,11 @@ func NewAlwaysOnInboundHandler(ctx context.Context, tag string, receiverConfig *
 	}
 
 	h := &AlwaysOnInboundHandler{
-		proxy: p,
-		mux:   mux.NewServer(ctx),
-		tag:   tag,
+		receiverConfig: receiverConfig,
+		proxyConfig:    proxyConfig,
+		proxy:          p,
+		mux:            mux.NewServer(ctx),
+		tag:            tag,
 	}
 
 	uplinkCounter, downlinkCounter := getStatCounter(core.MustFromContext(ctx), tag)
@@ -187,3 +193,16 @@ func (h *AlwaysOnInboundHandler) Tag() string {
 func (h *AlwaysOnInboundHandler) GetInbound() proxy.Inbound {
 	return h.proxy
 }
+
+// ReceiverSettings implements inbound.Handler.
+func (h *AlwaysOnInboundHandler) ReceiverSettings() *serial.TypedMessage {
+	return serial.ToTypedMessage(h.receiverConfig)
+}
+
+// ProxySettings implements inbound.Handler.
+func (h *AlwaysOnInboundHandler) ProxySettings() *serial.TypedMessage {
+	if v, ok := h.proxyConfig.(proto.Message); ok {
+		return serial.ToTypedMessage(v)
+	}
+	return nil
+}

app/proxyman/inbound/dynamic.go

@@ -10,10 +10,12 @@ import (
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/mux"
 	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/serial"
 	"github.com/xtls/xray-core/common/task"
 	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/proxy"
 	"github.com/xtls/xray-core/transport/internet"
+	"google.golang.org/protobuf/proto"
 )
 
 type DynamicInboundHandler struct {
@@ -23,7 +25,7 @@ type DynamicInboundHandler struct {
 	receiverConfig *proxyman.ReceiverConfig
 	streamSettings *internet.MemoryStreamConfig
 	portMutex      sync.Mutex
-	portsInUse     map[net.Port]bool
+	portsInUse     map[net.Port]struct{}
 	workerMutex    sync.RWMutex
 	worker         []worker
 	lastRefresh    time.Time
@@ -39,7 +41,7 @@ func NewDynamicInboundHandler(ctx context.Context, tag string, receiverConfig *p
 		tag:            tag,
 		proxyConfig:    proxyConfig,
 		receiverConfig: receiverConfig,
-		portsInUse:     make(map[net.Port]bool),
+		portsInUse:     make(map[net.Port]struct{}),
 		mux:            mux.NewServer(ctx),
 		v:              v,
 		ctx:            ctx,
@@ -84,7 +86,7 @@ func (h *DynamicInboundHandler) allocatePort() net.Port {
 		port := net.Port(allPorts[r])
 		_, used := h.portsInUse[port]
 		if !used {
-			h.portsInUse[port] = true
+			h.portsInUse[port] = struct{}{}
 			return port
 		}
 	}
@@ -205,3 +207,16 @@ func (h *DynamicInboundHandler) GetRandomInboundProxy() (interface{}, net.Port,
 func (h *DynamicInboundHandler) Tag() string {
 	return h.tag
 }
+
+// ReceiverSettings implements inbound.Handler.
+func (h *DynamicInboundHandler) ReceiverSettings() *serial.TypedMessage {
+	return serial.ToTypedMessage(h.receiverConfig)
+}
+
+// ProxySettings implements inbound.Handler.
+func (h *DynamicInboundHandler) ProxySettings() *serial.TypedMessage {
+	if v, ok := h.proxyConfig.(proto.Message); ok {
+		return serial.ToTypedMessage(v)
+	}
+	return nil
+}

app/proxyman/inbound/inbound.go

@@ -17,7 +17,7 @@ import (
 // Manager manages all inbound handlers.
 type Manager struct {
 	access          sync.RWMutex
-	untaggedHandler []inbound.Handler
+	untaggedHandlers []inbound.Handler
 	taggedHandlers  map[string]inbound.Handler
 	running         bool
 }
@@ -47,7 +47,7 @@ func (m *Manager) AddHandler(ctx context.Context, handler inbound.Handler) error
 		}
 		m.taggedHandlers[tag] = handler
 	} else {
-		m.untaggedHandler = append(m.untaggedHandler, handler)
+		m.untaggedHandlers = append(m.untaggedHandlers, handler)
 	}
 
 	if m.running {
@@ -89,6 +89,21 @@ func (m *Manager) RemoveHandler(ctx context.Context, tag string) error {
 	return common.ErrNoClue
 }
 
+// ListHandlers implements inbound.Manager.
+func (m *Manager) ListHandlers(ctx context.Context) []inbound.Handler {
+	m.access.RLock()
+	defer m.access.RUnlock()
+
+	response := make([]inbound.Handler, len(m.untaggedHandlers))
+	copy(response, m.untaggedHandlers)
+
+	for _, v := range m.taggedHandlers {
+		response = append(response, v)
+	}
+
+	return response
+}
+
 // Start implements common.Runnable.
 func (m *Manager) Start() error {
 	m.access.Lock()
@@ -102,7 +117,7 @@ func (m *Manager) Start() error {
 		}
 	}
 
-	for _, handler := range m.untaggedHandler {
+	for _, handler := range m.untaggedHandlers {
 		if err := handler.Start(); err != nil {
 			return err
 		}
@@ -123,7 +138,7 @@ func (m *Manager) Close() error {
 			errs = append(errs, err)
 		}
 	}
-	for _, handler := range m.untaggedHandler {
+	for _, handler := range m.untaggedHandlers {
 		if err := handler.Close(); err != nil {
 			errs = append(errs, err)
 		}

app/proxyman/inbound/worker.go

@@ -91,6 +91,7 @@ func (w *tcpWorker) callback(conn stat.Connection) {
 	}
 	ctx = session.ContextWithInbound(ctx, &session.Inbound{
 		Source:  net.DestinationFromAddr(conn.RemoteAddr()),
+		Local:   net.DestinationFromAddr(conn.LocalAddr()),
 		Gateway: net.TCPDestination(w.address, w.port),
 		Tag:     w.tag,
 		Conn:    conn,
@@ -161,6 +162,7 @@ type udpConn struct {
 	uplink           stats.Counter
 	downlink         stats.Counter
 	inactive         bool
+	cancel           context.CancelFunc
 }
 
 func (c *udpConn) setInactive() {
@@ -203,6 +205,9 @@ func (c *udpConn) Write(buf []byte) (int, error) {
 }
 
 func (c *udpConn) Close() error {
+	if c.cancel != nil {
+		c.cancel()
+	}
 	common.Must(c.done.Close())
 	common.Must(common.Close(c.writer))
 	return nil
@@ -259,6 +264,7 @@ func (w *udpWorker) getConnection(id connID) (*udpConn, bool) {
 	defer w.Unlock()
 
 	if conn, found := w.activeConn[id]; found && !conn.done.Done() {
+		conn.updateActivity()
 		return conn, true
 	}
 
@@ -306,7 +312,8 @@ func (w *udpWorker) callback(b *buf.Buffer, source net.Destination, originalDest
 		common.Must(w.checker.Start())
 
 		go func() {
-			ctx := w.ctx
+			ctx, cancel := context.WithCancel(w.ctx)
+			conn.cancel = cancel
 			sid := session.NewID()
 			ctx = c.ContextWithID(ctx, sid)
 
@@ -315,8 +322,10 @@ func (w *udpWorker) callback(b *buf.Buffer, source net.Destination, originalDest
 				outbounds[0].Target = originalDest
 			}
 			ctx = session.ContextWithOutbounds(ctx, outbounds)
+
 			ctx = session.ContextWithInbound(ctx, &session.Inbound{
 				Source:  source,
+				Local:   net.DestinationFromAddr(w.hub.Addr()), // Due to some limitations, in UDP connections, localIP is always equal to listen interface IP
 				Gateway: net.UDPDestination(w.address, w.port),
 				Tag:     w.tag,
 			})
@@ -324,6 +333,7 @@ func (w *udpWorker) callback(b *buf.Buffer, source net.Destination, originalDest
 			if w.sniffingConfig != nil {
 				content.SniffingRequest.Enabled = w.sniffingConfig.Enabled
 				content.SniffingRequest.OverrideDestinationForProtocol = w.sniffingConfig.DestinationOverride
+				content.SniffingRequest.ExcludeForDomain = w.sniffingConfig.DomainsExcluded
 				content.SniffingRequest.MetadataOnly = w.sniffingConfig.MetadataOnly
 				content.SniffingRequest.RouteOnly = w.sniffingConfig.RouteOnly
 			}
@@ -464,8 +474,8 @@ func (w *dsWorker) callback(conn stat.Connection) {
 		}
 	}
 	ctx = session.ContextWithInbound(ctx, &session.Inbound{
-		// Unix have no source addr, so we use gateway as source for log.
-		Source:  net.UnixDestination(w.address),
+		Source:  net.DestinationFromAddr(conn.RemoteAddr()),
+		Local:   net.DestinationFromAddr(conn.LocalAddr()),
 		Gateway: net.UnixDestination(w.address),
 		Tag:     w.tag,
 		Conn:    conn,

app/proxyman/outbound/handler.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"crypto/rand"
 	goerrors "errors"
+	"github.com/xtls/xray-core/common/dice"
 	"io"
 	"math/big"
 	gonet "net"
@@ -16,6 +17,7 @@ import (
 	"github.com/xtls/xray-core/common/mux"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/net/cnc"
+	"github.com/xtls/xray-core/common/serial"
 	"github.com/xtls/xray-core/common/session"
 	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/outbound"
@@ -27,6 +29,7 @@ import (
 	"github.com/xtls/xray-core/transport/internet/stat"
 	"github.com/xtls/xray-core/transport/internet/tls"
 	"github.com/xtls/xray-core/transport/pipe"
+	"google.golang.org/protobuf/proto"
 )
 
 func getStatCounter(v *core.Instance, tag string) (stats.Counter, stats.Counter) {
@@ -59,6 +62,7 @@ type Handler struct {
 	tag             string
 	senderSettings  *proxyman.SenderConfig
 	streamSettings  *internet.MemoryStreamConfig
+	proxyConfig     proto.Message
 	proxy           proxy.Outbound
 	outboundManager outbound.Manager
 	mux             *mux.ClientManager
@@ -101,6 +105,7 @@ func NewHandler(ctx context.Context, config *core.OutboundHandlerConfig) (outbou
 	if err != nil {
 		return nil, err
 	}
+	h.proxyConfig = proxyConfig
 
 	rawProxyHandler, err := common.CreateObject(ctx, proxyConfig)
 	if err != nil {
@@ -173,6 +178,25 @@ func (h *Handler) Tag() string {
 func (h *Handler) Dispatch(ctx context.Context, link *transport.Link) {
 	outbounds := session.OutboundsFromContext(ctx)
 	ob := outbounds[len(outbounds)-1]
+	content := session.ContentFromContext(ctx)
+	if h.senderSettings != nil && h.senderSettings.TargetStrategy.HasStrategy() && ob.Target.Address.Family().IsDomain() && (content == nil || !content.SkipDNSResolve) {
+		ips, err := internet.LookupForIP(ob.Target.Address.Domain(), h.senderSettings.TargetStrategy, nil)
+		if err != nil {
+			errors.LogInfoInner(ctx, err, "failed to resolve ip for target ", ob.Target.Address.Domain())
+			if h.senderSettings.TargetStrategy.ForceIP() {
+				err := errors.New("failed to resolve ip for target ", ob.Target.Address.Domain()).Base(err)
+				session.SubmitOutboundErrorToOriginator(ctx, err)
+				common.Interrupt(link.Writer)
+				common.Interrupt(link.Reader)
+				return
+			}
+
+		} else {
+			unchangedDomain := ob.Target.Address.Domain()
+			ob.Target.Address = net.IPAddress(ips[dice.Roll(len(ips))])
+			errors.LogInfo(ctx, "target: ", unchangedDomain, " resolved to: ", ob.Target.Address.String())
+		}
+	}
 	if ob.Target.Network == net.Network_UDP && ob.OriginalTarget.Address != nil && ob.OriginalTarget.Address != ob.Target.Address {
 		link.Reader = &buf.EndpointOverrideReader{Reader: link.Reader, Dest: ob.Target.Address, OriginalDest: ob.OriginalTarget.Address}
 		link.Writer = &buf.EndpointOverrideWriter{Writer: link.Writer, Dest: ob.Target.Address, OriginalDest: ob.OriginalTarget.Address}
@@ -184,6 +208,7 @@ func (h *Handler) Dispatch(ctx context.Context, link *transport.Link) {
 				session.SubmitOutboundErrorToOriginator(ctx, err)
 				errors.LogInfo(ctx, err.Error())
 				common.Interrupt(link.Writer)
+				common.Interrupt(link.Reader)
 			}
 		}
 		if ob.Target.Network == net.Network_UDP && ob.Target.Port == 443 {
@@ -241,7 +266,9 @@ func (h *Handler) DestIpAddress() net.IP {
 // Dial implements internet.Dialer.
 func (h *Handler) Dial(ctx context.Context, dest net.Destination) (stat.Connection, error) {
 	if h.senderSettings != nil {
+
 		if h.senderSettings.ProxySettings.HasTag() {
+
 			tag := h.senderSettings.ProxySettings.Tag
 			handler := h.outboundManager.GetHandler(tag)
 			if handler != nil {
@@ -270,13 +297,36 @@ func (h *Handler) Dial(ctx context.Context, dest net.Destination) (stat.Connecti
 		}
 
 		if h.senderSettings.Via != nil {
+
 			outbounds := session.OutboundsFromContext(ctx)
 			ob := outbounds[len(outbounds)-1]
-			if h.senderSettings.ViaCidr == "" {
-				ob.Gateway = h.senderSettings.Via.AsAddress()
-			} else { //Get a random address.
-				ob.Gateway = ParseRandomIPv6(h.senderSettings.Via.AsAddress(), h.senderSettings.ViaCidr)
+			var domain string
+			addr := h.senderSettings.Via.AsAddress()
+			domain = h.senderSettings.Via.GetDomain()
+			switch {
+			case h.senderSettings.ViaCidr != "":
+				ob.Gateway = ParseRandomIP(addr, h.senderSettings.ViaCidr)
+
+			case domain == "origin":
+				if inbound := session.InboundFromContext(ctx); inbound != nil {
+					if inbound.Local.IsValid() && inbound.Local.Address.Family().IsIP() {
+						ob.Gateway = inbound.Local.Address
+						errors.LogDebug(ctx, "use inbound local ip as sendthrough: ", inbound.Local.Address.String())
+					}
+				}
+			case domain == "srcip":
+				if inbound := session.InboundFromContext(ctx); inbound != nil {
+					if inbound.Source.IsValid() && inbound.Source.Address.Family().IsIP() {
+						ob.Gateway = inbound.Source.Address
+						errors.LogDebug(ctx, "use inbound source ip as sendthrough: ", inbound.Source.Address.String())
+					}
+				}
+			//case addr.Family().IsDomain():
+			default:
+				ob.Gateway = addr
+
 			}
+
 		}
 	}
 
@@ -316,23 +366,35 @@ func (h *Handler) Start() error {
 // Close implements common.Closable.
 func (h *Handler) Close() error {
 	common.Close(h.mux)
+	common.Close(h.proxy)
 	return nil
 }
 
-func ParseRandomIPv6(address net.Address, prefix string) net.Address {
-	_, network, _ := gonet.ParseCIDR(address.IP().String() + "/" + prefix)
-
-	maskSize, totalBits := network.Mask.Size()
-	subnetSize := big.NewInt(1).Lsh(big.NewInt(1), uint(totalBits-maskSize))
-
-	// random
-	randomBigInt, _ := rand.Int(rand.Reader, subnetSize)
-
-	startIPBigInt := big.NewInt(0).SetBytes(network.IP.To16())
-	randomIPBigInt := big.NewInt(0).Add(startIPBigInt, randomBigInt)
-
-	randomIPBytes := randomIPBigInt.Bytes()
-	randomIPBytes = append(make([]byte, 16-len(randomIPBytes)), randomIPBytes...)
-
-	return net.ParseAddress(gonet.IP(randomIPBytes).String())
+// SenderSettings implements outbound.Handler.
+func (h *Handler) SenderSettings() *serial.TypedMessage {
+	return serial.ToTypedMessage(h.senderSettings)
+}
+
+// ProxySettings implements outbound.Handler.
+func (h *Handler) ProxySettings() *serial.TypedMessage {
+	return serial.ToTypedMessage(h.proxyConfig)
+}
+
+func ParseRandomIP(addr net.Address, prefix string) net.Address {
+
+	_, ipnet, _ := gonet.ParseCIDR(addr.IP().String() + "/" + prefix)
+
+	ones, bits := ipnet.Mask.Size()
+	subnetSize := new(big.Int).Lsh(big.NewInt(1), uint(bits-ones))
+
+	rnd, _ := rand.Int(rand.Reader, subnetSize)
+
+	startInt := new(big.Int).SetBytes(ipnet.IP)
+	rndInt := new(big.Int).Add(startInt, rnd)
+
+	rndBytes := rndInt.Bytes()
+	padded := make([]byte, len(ipnet.IP))
+	copy(padded[len(padded)-len(rndBytes):], rndBytes)
+
+	return net.ParseAddress(gonet.IP(padded).String())
 }

app/proxyman/outbound/outbound.go

@@ -145,6 +145,21 @@ func (m *Manager) RemoveHandler(ctx context.Context, tag string) error {
 	return nil
 }
 
+// ListHandlers implements outbound.Manager.
+func (m *Manager) ListHandlers(ctx context.Context) []outbound.Handler {
+	m.access.RLock()
+	defer m.access.RUnlock()
+
+	response := make([]outbound.Handler, len(m.untaggedHandlers))
+	copy(response, m.untaggedHandlers)
+
+	for _, v := range m.taggedHandler {
+		response = append(response, v)
+	}
+
+	return response
+}
+
 // Select implements outbound.HandlerSelector.
 func (m *Manager) Select(selectors []string) []string {
 

app/reverse/config.go

@@ -9,6 +9,7 @@ import (
 
 func (c *Control) FillInRandom() {
 	randomLength := dice.Roll(64)
+	randomLength++
 	c.Random = make([]byte, randomLength)
 	io.ReadFull(rand.Reader, c.Random)
 }

app/reverse/portal.go

@@ -10,6 +10,7 @@ import (
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/mux"
 	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/serial"
 	"github.com/xtls/xray-core/common/session"
 	"github.com/xtls/xray-core/common/task"
 	"github.com/xtls/xray-core/features/outbound"
@@ -111,6 +112,16 @@ func (o *Outbound) Close() error {
 	return nil
 }
 
+// SenderSettings implements outbound.Handler.
+func (o *Outbound) SenderSettings() *serial.TypedMessage {
+	return nil
+}
+
+// ProxySettings implements outbound.Handler.
+func (o *Outbound) ProxySettings() *serial.TypedMessage {
+	return nil
+}
+
 type StaticMuxPicker struct {
 	access  sync.Mutex
 	workers []*PortalWorker
@@ -159,7 +170,7 @@ func (p *StaticMuxPicker) PickAvailable() (*mux.ClientWorker, error) {
 		if w.draining {
 			continue
 		}
-		if w.client.Closed() {
+		if w.IsFull() {
 			continue
 		}
 		if w.client.ActiveConnections() < minConn {
@@ -200,6 +211,7 @@ type PortalWorker struct {
 	writer   buf.Writer
 	reader   buf.Reader
 	draining bool
+	counter  uint32
 }
 
 func NewPortalWorker(client *mux.ClientWorker) (*PortalWorker, error) {
@@ -233,7 +245,7 @@ func NewPortalWorker(client *mux.ClientWorker) (*PortalWorker, error) {
 }
 
 func (w *PortalWorker) heartbeat() error {
-	if w.client.Closed() {
+	if w.Closed() {
 		return errors.New("client worker stopped")
 	}
 
@@ -249,16 +261,21 @@ func (w *PortalWorker) heartbeat() error {
 		msg.State = Control_DRAIN
 
 		defer func() {
+			w.client.GetTimer().Reset(time.Second * 16)
 			common.Close(w.writer)
 			common.Interrupt(w.reader)
 			w.writer = nil
 		}()
 	}
 
-	b, err := proto.Marshal(msg)
-	common.Must(err)
-	mb := buf.MergeBytes(nil, b)
-	return w.writer.WriteMultiBuffer(mb)
+	w.counter = (w.counter + 1) % 5
+	if w.draining || w.counter == 1 {
+		b, err := proto.Marshal(msg)
+		common.Must(err)
+		mb := buf.MergeBytes(nil, b)
+		return w.writer.WriteMultiBuffer(mb)
+	}
+	return nil
 }
 
 func (w *PortalWorker) IsFull() bool {

app/router/balancing.go

@@ -5,6 +5,7 @@ import (
 	sync "sync"
 
 	"github.com/xtls/xray-core/app/observatory"
+	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/extension"
@@ -31,9 +32,10 @@ type RoundRobinStrategy struct {
 func (s *RoundRobinStrategy) InjectContext(ctx context.Context) {
 	s.ctx = ctx
 	if len(s.FallbackTag) > 0 {
-		core.RequireFeaturesAsync(s.ctx, func(observatory extension.Observatory) {
+		common.Must(core.RequireFeatures(s.ctx, func(observatory extension.Observatory) error {
 			s.observatory = observatory
-		})
+			return nil
+		}))
 	}
 }
 

app/router/command/command.go

@@ -135,7 +135,7 @@ func (s *service) Register(server *grpc.Server) {
 		vCoreDesc := RoutingService_ServiceDesc
 		vCoreDesc.ServiceName = "v2ray.core.app.router.command.RoutingService"
 		server.RegisterService(&vCoreDesc, rs)
-	}))
+	}, false))
 }
 
 func init() {

app/router/command/command.pb.go

@@ -42,6 +42,9 @@ type RoutingContext struct {
 	Attributes        map[string]string `protobuf:"bytes,10,rep,name=Attributes,proto3" json:"Attributes,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
 	OutboundGroupTags []string          `protobuf:"bytes,11,rep,name=OutboundGroupTags,proto3" json:"OutboundGroupTags,omitempty"`
 	OutboundTag       string            `protobuf:"bytes,12,opt,name=OutboundTag,proto3" json:"OutboundTag,omitempty"`
+	LocalIPs          [][]byte          `protobuf:"bytes,13,rep,name=LocalIPs,proto3" json:"LocalIPs,omitempty"`
+	LocalPort         uint32            `protobuf:"varint,14,opt,name=LocalPort,proto3" json:"LocalPort,omitempty"`
+	VlessRoute        uint32            `protobuf:"varint,15,opt,name=VlessRoute,proto3" json:"VlessRoute,omitempty"`
 }
 
 func (x *RoutingContext) Reset() {
@@ -158,6 +161,27 @@ func (x *RoutingContext) GetOutboundTag() string {
 	return ""
 }
 
+func (x *RoutingContext) GetLocalIPs() [][]byte {
+	if x != nil {
+		return x.LocalIPs
+	}
+	return nil
+}
+
+func (x *RoutingContext) GetLocalPort() uint32 {
+	if x != nil {
+		return x.LocalPort
+	}
+	return 0
+}
+
+func (x *RoutingContext) GetVlessRoute() uint32 {
+	if x != nil {
+		return x.VlessRoute
+	}
+	return 0
+}
+
 // SubscribeRoutingStatsRequest subscribes to routing statistics channel if
 // opened by xray-core.
 // * FieldSelectors selects a subset of fields in routing statistics to return.
@@ -827,7 +851,7 @@ var file_app_router_command_command_proto_rawDesc = []byte{
 	0x6d, 0x6f, 0x6e, 0x2f, 0x6e, 0x65, 0x74, 0x2f, 0x6e, 0x65, 0x74, 0x77, 0x6f, 0x72, 0x6b, 0x2e,
 	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x1a, 0x21, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2f, 0x73, 0x65,
 	0x72, 0x69, 0x61, 0x6c, 0x2f, 0x74, 0x79, 0x70, 0x65, 0x64, 0x5f, 0x6d, 0x65, 0x73, 0x73, 0x61,
-	0x67, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0x9c, 0x04, 0x0a, 0x0e, 0x52, 0x6f, 0x75,
+	0x67, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0xf6, 0x04, 0x0a, 0x0e, 0x52, 0x6f, 0x75,
 	0x74, 0x69, 0x6e, 0x67, 0x43, 0x6f, 0x6e, 0x74, 0x65, 0x78, 0x74, 0x12, 0x1e, 0x0a, 0x0a, 0x49,
 	0x6e, 0x62, 0x6f, 0x75, 0x6e, 0x64, 0x54, 0x61, 0x67, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52,
 	0x0a, 0x49, 0x6e, 0x62, 0x6f, 0x75, 0x6e, 0x64, 0x54, 0x61, 0x67, 0x12, 0x32, 0x0a, 0x07, 0x4e,
@@ -857,123 +881,129 @@ var file_app_router_command_command_proto_rawDesc = []byte{
 	0x03, 0x28, 0x09, 0x52, 0x11, 0x4f, 0x75, 0x74, 0x62, 0x6f, 0x75, 0x6e, 0x64, 0x47, 0x72, 0x6f,
 	0x75, 0x70, 0x54, 0x61, 0x67, 0x73, 0x12, 0x20, 0x0a, 0x0b, 0x4f, 0x75, 0x74, 0x62, 0x6f, 0x75,
 	0x6e, 0x64, 0x54, 0x61, 0x67, 0x18, 0x0c, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0b, 0x4f, 0x75, 0x74,
-	0x62, 0x6f, 0x75, 0x6e, 0x64, 0x54, 0x61, 0x67, 0x1a, 0x3d, 0x0a, 0x0f, 0x41, 0x74, 0x74, 0x72,
-	0x69, 0x62, 0x75, 0x74, 0x65, 0x73, 0x45, 0x6e, 0x74, 0x72, 0x79, 0x12, 0x10, 0x0a, 0x03, 0x6b,
-	0x65, 0x79, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03, 0x6b, 0x65, 0x79, 0x12, 0x14, 0x0a,
-	0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x76, 0x61,
-	0x6c, 0x75, 0x65, 0x3a, 0x02, 0x38, 0x01, 0x22, 0x46, 0x0a, 0x1c, 0x53, 0x75, 0x62, 0x73, 0x63,
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-	0x67, 0x18, 0x01, 0x20, 0x03, 0x28, 0x09, 0x52, 0x03, 0x74, 0x61, 0x67, 0x22, 0x26, 0x0a, 0x0c,
-	0x4f, 0x76, 0x65, 0x72, 0x72, 0x69, 0x64, 0x65, 0x49, 0x6e, 0x66, 0x6f, 0x12, 0x16, 0x0a, 0x06,
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+	0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (

app/router/command/command.proto

@@ -25,6 +25,9 @@ message RoutingContext {
   map<string, string> Attributes = 10;
   repeated string OutboundGroupTags = 11;
   string OutboundTag = 12;
+  repeated bytes LocalIPs = 13;
+  uint32 LocalPort = 14;
+  uint32 VlessRoute = 15;
 }
 
 // SubscribeRoutingStatsRequest subscribes to routing statistics channel if

app/router/command/config.go

@@ -28,6 +28,18 @@ func (c routingContext) GetTargetPort() net.Port {
 	return net.Port(c.RoutingContext.GetTargetPort())
 }
 
+func (c routingContext) GetLocalIPs() []net.IP {
+	return mapBytesToIPs(c.RoutingContext.GetLocalIPs())
+}
+
+func (c routingContext) GetLocalPort() net.Port {
+	return net.Port(c.RoutingContext.GetLocalPort())
+}
+
+func (c routingContext) GetVlessRoute() net.Port {
+	return net.Port(c.RoutingContext.GetVlessRoute())
+}
+
 func (c routingContext) GetRuleTag() string {
 	return ""
 }
@@ -54,8 +66,10 @@ var fieldMap = map[string]func(*RoutingContext, routing.Route){
 	"network":        func(s *RoutingContext, r routing.Route) { s.Network = r.GetNetwork() },
 	"ip_source":      func(s *RoutingContext, r routing.Route) { s.SourceIPs = mapIPsToBytes(r.GetSourceIPs()) },
 	"ip_target":      func(s *RoutingContext, r routing.Route) { s.TargetIPs = mapIPsToBytes(r.GetTargetIPs()) },
+	"ip_local":       func(s *RoutingContext, r routing.Route) { s.LocalIPs = mapIPsToBytes(r.GetLocalIPs()) },
 	"port_source":    func(s *RoutingContext, r routing.Route) { s.SourcePort = uint32(r.GetSourcePort()) },
 	"port_target":    func(s *RoutingContext, r routing.Route) { s.TargetPort = uint32(r.GetTargetPort()) },
+	"port_local":     func(s *RoutingContext, r routing.Route) { s.LocalPort = uint32(r.GetLocalPort()) },
 	"domain":         func(s *RoutingContext, r routing.Route) { s.TargetDomain = r.GetTargetDomain() },
 	"protocol":       func(s *RoutingContext, r routing.Route) { s.Protocol = r.GetProtocol() },
 	"user":           func(s *RoutingContext, r routing.Route) { s.User = r.GetUser() },

app/router/condition.go

@@ -83,21 +83,6 @@ func NewMphMatcherGroup(domains []*Domain) (*DomainMatcher, error) {
 	}, nil
 }
 
-func NewDomainMatcher(domains []*Domain) (*DomainMatcher, error) {
-	g := new(strmatcher.MatcherGroup)
-	for _, d := range domains {
-		m, err := domainToMatcher(d)
-		if err != nil {
-			return nil, err
-		}
-		g.Add(m)
-	}
-
-	return &DomainMatcher{
-		matchers: g,
-	}, nil
-}
-
 func (m *DomainMatcher) ApplyDomain(domain string) bool {
 	return len(m.matchers.Match(strings.ToLower(domain))) > 0
 }
@@ -113,13 +98,13 @@ func (m *DomainMatcher) Apply(ctx routing.Context) bool {
 
 type MultiGeoIPMatcher struct {
 	matchers []*GeoIPMatcher
-	onSource bool
+	asType   string // local, source, target
 }
 
-func NewMultiGeoIPMatcher(geoips []*GeoIP, onSource bool) (*MultiGeoIPMatcher, error) {
+func NewMultiGeoIPMatcher(geoips []*GeoIP, asType string) (*MultiGeoIPMatcher, error) {
 	var matchers []*GeoIPMatcher
 	for _, geoip := range geoips {
-		matcher, err := globalGeoIPContainer.Add(geoip)
+		matcher, err := GlobalGeoIPContainer.Add(geoip)
 		if err != nil {
 			return nil, err
 		}
@@ -128,7 +113,7 @@ func NewMultiGeoIPMatcher(geoips []*GeoIP, onSource bool) (*MultiGeoIPMatcher, e
 
 	matcher := &MultiGeoIPMatcher{
 		matchers: matchers,
-		onSource: onSource,
+		asType:   asType,
 	}
 
 	return matcher, nil
@@ -137,11 +122,18 @@ func NewMultiGeoIPMatcher(geoips []*GeoIP, onSource bool) (*MultiGeoIPMatcher, e
 // Apply implements Condition.
 func (m *MultiGeoIPMatcher) Apply(ctx routing.Context) bool {
 	var ips []net.IP
-	if m.onSource {
+
+	switch m.asType {
+	case "local":
+		ips = ctx.GetLocalIPs()
+	case "source":
 		ips = ctx.GetSourceIPs()
-	} else {
+	case "target":
 		ips = ctx.GetTargetIPs()
+	default:
+		panic("unreachable, asType should be local or source or target")
 	}
+
 	for _, ip := range ips {
 		for _, matcher := range m.matchers {
 			if matcher.Match(ip) {
@@ -153,25 +145,33 @@ func (m *MultiGeoIPMatcher) Apply(ctx routing.Context) bool {
 }
 
 type PortMatcher struct {
-	port     net.MemoryPortList
-	onSource bool
+	port   net.MemoryPortList
+	asType string // local, source, target
 }
 
-// NewPortMatcher create a new port matcher that can match source or destination port
-func NewPortMatcher(list *net.PortList, onSource bool) *PortMatcher {
+// NewPortMatcher create a new port matcher that can match source or local or destination port
+func NewPortMatcher(list *net.PortList, asType string) *PortMatcher {
 	return &PortMatcher{
-		port:     net.PortListFromProto(list),
-		onSource: onSource,
+		port:   net.PortListFromProto(list),
+		asType: asType,
 	}
 }
 
 // Apply implements Condition.
 func (v *PortMatcher) Apply(ctx routing.Context) bool {
-	if v.onSource {
+	switch v.asType {
+	case "local":
+		return v.port.Contains(ctx.GetLocalPort())
+	case "source":
 		return v.port.Contains(ctx.GetSourcePort())
-	} else {
+	case "target":
 		return v.port.Contains(ctx.GetTargetPort())
+	case "vlessRoute":
+		return v.port.Contains(ctx.GetVlessRoute())
+	default:
+		panic("unreachable, asType should be local or source or target")
 	}
+
 }
 
 type NetworkMatcher struct {

app/router/condition_geoip.go

@@ -115,4 +115,30 @@ func (c *GeoIPMatcherContainer) Add(geoip *GeoIP) (*GeoIPMatcher, error) {
 	return m, nil
 }
 
-var globalGeoIPContainer GeoIPMatcherContainer
+var GlobalGeoIPContainer GeoIPMatcherContainer
+
+func MatchIPs(matchers []*GeoIPMatcher, ips []net.IP, reverse bool) []net.IP {
+	if len(matchers) == 0 {
+		panic("GeoIP matchers should not be empty to avoid ambiguity")
+	}
+	newIPs := make([]net.IP, 0, len(ips))
+	var isFound bool
+	for _, ip := range ips {
+		isFound = false
+		for _, matcher := range matchers {
+			if matcher.Match(ip) {
+				isFound = true
+				break
+			}
+		}
+		if isFound && !reverse {
+			newIPs = append(newIPs, ip)
+			continue
+		}
+		if !isFound && reverse {
+			newIPs = append(newIPs, ip)
+			continue
+		}
+	}
+	return newIPs
+}

app/router/condition_test.go

@@ -328,9 +328,6 @@ func TestChinaSites(t *testing.T) {
 	domains, err := loadGeoSite("CN")
 	common.Must(err)
 
-	matcher, err := NewDomainMatcher(domains)
-	common.Must(err)
-
 	acMatcher, err := NewMphMatcherGroup(domains)
 	common.Must(err)
 
@@ -362,12 +359,9 @@ func TestChinaSites(t *testing.T) {
 	}
 
 	for _, testCase := range testCases {
-		r1 := matcher.ApplyDomain(testCase.Domain)
-		r2 := acMatcher.ApplyDomain(testCase.Domain)
-		if r1 != testCase.Output {
-			t.Error("DomainMatcher expected output ", testCase.Output, " for domain ", testCase.Domain, " but got ", r1)
-		} else if r2 != testCase.Output {
-			t.Error("ACDomainMatcher expected output ", testCase.Output, " for domain ", testCase.Domain, " but got ", r2)
+		r := acMatcher.ApplyDomain(testCase.Domain)
+		if r != testCase.Output {
+			t.Error("ACDomainMatcher expected output ", testCase.Output, " for domain ", testCase.Domain, " but got ", r)
 		}
 	}
 }
@@ -414,48 +408,6 @@ func BenchmarkMphDomainMatcher(b *testing.B) {
 	}
 }
 
-func BenchmarkDomainMatcher(b *testing.B) {
-	domains, err := loadGeoSite("CN")
-	common.Must(err)
-
-	matcher, err := NewDomainMatcher(domains)
-	common.Must(err)
-
-	type TestCase struct {
-		Domain string
-		Output bool
-	}
-	testCases := []TestCase{
-		{
-			Domain: "163.com",
-			Output: true,
-		},
-		{
-			Domain: "163.com",
-			Output: true,
-		},
-		{
-			Domain: "164.com",
-			Output: false,
-		},
-		{
-			Domain: "164.com",
-			Output: false,
-		},
-	}
-
-	for i := 0; i < 1024; i++ {
-		testCases = append(testCases, TestCase{Domain: strconv.Itoa(i) + ".not-exists.com", Output: false})
-	}
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		for _, testCase := range testCases {
-			_ = matcher.ApplyDomain(testCase.Domain)
-		}
-	}
-}
-
 func BenchmarkMultiGeoIPMatcher(b *testing.B) {
 	var geoips []*GeoIP
 
@@ -495,7 +447,7 @@ func BenchmarkMultiGeoIPMatcher(b *testing.B) {
 		})
 	}
 
-	matcher, err := NewMultiGeoIPMatcher(geoips, false)
+	matcher, err := NewMultiGeoIPMatcher(geoips, "target")
 	common.Must(err)
 
 	ctx := withOutbound(&session.Outbound{Target: net.TCPDestination(net.ParseAddress("8.8.8.8"), 80)})

app/router/config.go

@@ -33,39 +33,36 @@ func (rr *RoutingRule) BuildCondition() (Condition, error) {
 	conds := NewConditionChan()
 
 	if len(rr.Domain) > 0 {
-		switch rr.DomainMatcher {
-		case "linear":
-			matcher, err := NewDomainMatcher(rr.Domain)
-			if err != nil {
-				return nil, errors.New("failed to build domain condition").Base(err)
-			}
-			conds.Add(matcher)
-		case "mph", "hybrid":
-			fallthrough
-		default:
-			matcher, err := NewMphMatcherGroup(rr.Domain)
-			if err != nil {
-				return nil, errors.New("failed to build domain condition with MphDomainMatcher").Base(err)
-			}
-			errors.LogDebug(context.Background(), "MphDomainMatcher is enabled for ", len(rr.Domain), " domain rule(s)")
-			conds.Add(matcher)
+		matcher, err := NewMphMatcherGroup(rr.Domain)
+		if err != nil {
+			return nil, errors.New("failed to build domain condition with MphDomainMatcher").Base(err)
 		}
+		errors.LogDebug(context.Background(), "MphDomainMatcher is enabled for ", len(rr.Domain), " domain rule(s)")
+		conds.Add(matcher)
 	}
 
 	if len(rr.UserEmail) > 0 {
 		conds.Add(NewUserMatcher(rr.UserEmail))
 	}
 
+	if rr.VlessRouteList != nil {
+		conds.Add(NewPortMatcher(rr.VlessRouteList, "vlessRoute"))
+	}
+
 	if len(rr.InboundTag) > 0 {
 		conds.Add(NewInboundTagMatcher(rr.InboundTag))
 	}
 
 	if rr.PortList != nil {
-		conds.Add(NewPortMatcher(rr.PortList, false))
+		conds.Add(NewPortMatcher(rr.PortList, "target"))
 	}
 
 	if rr.SourcePortList != nil {
-		conds.Add(NewPortMatcher(rr.SourcePortList, true))
+		conds.Add(NewPortMatcher(rr.SourcePortList, "source"))
+	}
+
+	if rr.LocalPortList != nil {
+		conds.Add(NewPortMatcher(rr.LocalPortList, "local"))
 	}
 
 	if len(rr.Networks) > 0 {
@@ -73,7 +70,7 @@ func (rr *RoutingRule) BuildCondition() (Condition, error) {
 	}
 
 	if len(rr.Geoip) > 0 {
-		cond, err := NewMultiGeoIPMatcher(rr.Geoip, false)
+		cond, err := NewMultiGeoIPMatcher(rr.Geoip, "target")
 		if err != nil {
 			return nil, err
 		}
@@ -81,13 +78,22 @@ func (rr *RoutingRule) BuildCondition() (Condition, error) {
 	}
 
 	if len(rr.SourceGeoip) > 0 {
-		cond, err := NewMultiGeoIPMatcher(rr.SourceGeoip, true)
+		cond, err := NewMultiGeoIPMatcher(rr.SourceGeoip, "source")
 		if err != nil {
 			return nil, err
 		}
 		conds.Add(cond)
 	}
 
+	if len(rr.LocalGeoip) > 0 {
+		cond, err := NewMultiGeoIPMatcher(rr.LocalGeoip, "local")
+		if err != nil {
+			return nil, err
+		}
+		conds.Add(cond)
+		errors.LogWarning(context.Background(), "Due to some limitations, in UDP connections, localIP is always equal to listen interface IP, so \"localIP\" rule condition does not work properly on UDP inbound connections that listen on all interfaces")
+	}
+
 	if len(rr.Protocol) > 0 {
 		conds.Add(NewProtocolMatcher(rr.Protocol))
 	}

app/router/config.pb.go

@@ -470,7 +470,7 @@ type RoutingRule struct {
 	//	*RoutingRule_Tag
 	//	*RoutingRule_BalancingTag
 	TargetTag isRoutingRule_TargetTag `protobuf_oneof:"target_tag"`
-	RuleTag   string                  `protobuf:"bytes,18,opt,name=rule_tag,json=ruleTag,proto3" json:"rule_tag,omitempty"`
+	RuleTag   string                  `protobuf:"bytes,19,opt,name=rule_tag,json=ruleTag,proto3" json:"rule_tag,omitempty"`
 	// List of domains for target domain matching.
 	Domain []*Domain `protobuf:"bytes,2,rep,name=domain,proto3" json:"domain,omitempty"`
 	// List of GeoIPs for target IP address matching. If this entry exists, the
@@ -491,7 +491,9 @@ type RoutingRule struct {
 	InboundTag     []string          `protobuf:"bytes,8,rep,name=inbound_tag,json=inboundTag,proto3" json:"inbound_tag,omitempty"`
 	Protocol       []string          `protobuf:"bytes,9,rep,name=protocol,proto3" json:"protocol,omitempty"`
 	Attributes     map[string]string `protobuf:"bytes,15,rep,name=attributes,proto3" json:"attributes,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
-	DomainMatcher  string            `protobuf:"bytes,17,opt,name=domain_matcher,json=domainMatcher,proto3" json:"domain_matcher,omitempty"`
+	LocalGeoip     []*GeoIP          `protobuf:"bytes,17,rep,name=local_geoip,json=localGeoip,proto3" json:"local_geoip,omitempty"`
+	LocalPortList  *net.PortList     `protobuf:"bytes,18,opt,name=local_port_list,json=localPortList,proto3" json:"local_port_list,omitempty"`
+	VlessRouteList *net.PortList     `protobuf:"bytes,20,opt,name=vless_route_list,json=vlessRouteList,proto3" json:"vless_route_list,omitempty"`
 }
 
 func (x *RoutingRule) Reset() {
@@ -622,11 +624,25 @@ func (x *RoutingRule) GetAttributes() map[string]string {
 	return nil
 }
 
-func (x *RoutingRule) GetDomainMatcher() string {
+func (x *RoutingRule) GetLocalGeoip() []*GeoIP {
 	if x != nil {
-		return x.DomainMatcher
+		return x.LocalGeoip
 	}
-	return ""
+	return nil
+}
+
+func (x *RoutingRule) GetLocalPortList() *net.PortList {
+	if x != nil {
+		return x.LocalPortList
+	}
+	return nil
+}
+
+func (x *RoutingRule) GetVlessRouteList() *net.PortList {
+	if x != nil {
+		return x.VlessRouteList
+	}
+	return nil
 }
 
 type isRoutingRule_TargetTag interface {
@@ -1069,13 +1085,13 @@ var file_app_router_config_proto_rawDesc = []byte{
 	0x6f, 0x53, 0x69, 0x74, 0x65, 0x4c, 0x69, 0x73, 0x74, 0x12, 0x2e, 0x0a, 0x05, 0x65, 0x6e, 0x74,
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@@ -1107,69 +1123,79 @@ var file_app_router_config_proto_rawDesc = []byte{
 	0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x72, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x2e, 0x52,
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 var (
@@ -1220,16 +1246,19 @@ var file_app_router_config_proto_depIdxs = []int32{
 	4,  // 10: xray.app.router.RoutingRule.source_geoip:type_name -> xray.app.router.GeoIP
 	15, // 11: xray.app.router.RoutingRule.source_port_list:type_name -> xray.common.net.PortList
 	14, // 12: xray.app.router.RoutingRule.attributes:type_name -> xray.app.router.RoutingRule.AttributesEntry
-	17, // 13: xray.app.router.BalancingRule.strategy_settings:type_name -> xray.common.serial.TypedMessage
-	10, // 14: xray.app.router.StrategyLeastLoadConfig.costs:type_name -> xray.app.router.StrategyWeight
-	1,  // 15: xray.app.router.Config.domain_strategy:type_name -> xray.app.router.Config.DomainStrategy
-	8,  // 16: xray.app.router.Config.rule:type_name -> xray.app.router.RoutingRule
-	9,  // 17: xray.app.router.Config.balancing_rule:type_name -> xray.app.router.BalancingRule
-	18, // [18:18] is the sub-list for method output_type
-	18, // [18:18] is the sub-list for method input_type
-	18, // [18:18] is the sub-list for extension type_name
-	18, // [18:18] is the sub-list for extension extendee
-	0,  // [0:18] is the sub-list for field type_name
+	4,  // 13: xray.app.router.RoutingRule.local_geoip:type_name -> xray.app.router.GeoIP
+	15, // 14: xray.app.router.RoutingRule.local_port_list:type_name -> xray.common.net.PortList
+	15, // 15: xray.app.router.RoutingRule.vless_route_list:type_name -> xray.common.net.PortList
+	17, // 16: xray.app.router.BalancingRule.strategy_settings:type_name -> xray.common.serial.TypedMessage
+	10, // 17: xray.app.router.StrategyLeastLoadConfig.costs:type_name -> xray.app.router.StrategyWeight
+	1,  // 18: xray.app.router.Config.domain_strategy:type_name -> xray.app.router.Config.DomainStrategy
+	8,  // 19: xray.app.router.Config.rule:type_name -> xray.app.router.RoutingRule
+	9,  // 20: xray.app.router.Config.balancing_rule:type_name -> xray.app.router.BalancingRule
+	21, // [21:21] is the sub-list for method output_type
+	21, // [21:21] is the sub-list for method input_type
+	21, // [21:21] is the sub-list for extension type_name
+	21, // [21:21] is the sub-list for extension extendee
+	0,  // [0:21] is the sub-list for field type_name
 }
 
 func init() { file_app_router_config_proto_init() }

app/router/config.proto

@@ -79,7 +79,7 @@ message RoutingRule {
     // Tag of routing balancer.
     string balancing_tag = 12;
   }
-    string rule_tag = 18;
+    string rule_tag = 19;
 
   // List of domains for target domain matching.
   repeated Domain domain = 2;
@@ -109,7 +109,10 @@ message RoutingRule {
 
   map<string, string> attributes = 15;
 
-  string domain_matcher = 17;
+  repeated GeoIP local_geoip = 17;
+  xray.common.net.PortList local_port_list = 18;
+
+  xray.common.net.PortList vless_route_list = 20;
 }
 
 message BalancingRule {

app/router/router_test.go

@@ -177,7 +177,7 @@ func TestIPOnDemand(t *testing.T) {
 		IPv4Enable: true,
 		IPv6Enable: true,
 		FakeEnable: false,
-	}).Return([]net.IP{{192, 168, 0, 1}}, nil).AnyTimes()
+	}).Return([]net.IP{{192, 168, 0, 1}}, uint32(600), nil).AnyTimes()
 
 	r := new(Router)
 	common.Must(r.Init(context.TODO(), config, mockDNS, nil, nil))
@@ -222,7 +222,7 @@ func TestIPIfNonMatchDomain(t *testing.T) {
 		IPv4Enable: true,
 		IPv6Enable: true,
 		FakeEnable: false,
-	}).Return([]net.IP{{192, 168, 0, 1}}, nil).AnyTimes()
+	}).Return([]net.IP{{192, 168, 0, 1}}, uint32(600), nil).AnyTimes()
 
 	r := new(Router)
 	common.Must(r.Init(context.TODO(), config, mockDNS, nil, nil))

app/router/strategy_leastload.go

@@ -7,6 +7,7 @@ import (
 	"time"
 
 	"github.com/xtls/xray-core/app/observatory"
+	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/dice"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/core"
@@ -59,9 +60,10 @@ type node struct {
 
 func (s *LeastLoadStrategy) InjectContext(ctx context.Context) {
 	s.ctx = ctx
-	core.RequireFeaturesAsync(s.ctx, func(observatory extension.Observatory) {
+	common.Must(core.RequireFeatures(s.ctx, func(observatory extension.Observatory) error {
 		s.observer = observatory
-	})
+		return nil
+	}))
 }
 
 func (s *LeastLoadStrategy) PickOutbound(candidates []string) string {

app/router/strategy_leastping.go

@@ -4,6 +4,7 @@ import (
 	"context"
 
 	"github.com/xtls/xray-core/app/observatory"
+	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/extension"
@@ -20,9 +21,10 @@ func (l *LeastPingStrategy) GetPrincipleTarget(strings []string) []string {
 
 func (l *LeastPingStrategy) InjectContext(ctx context.Context) {
 	l.ctx = ctx
-	core.RequireFeaturesAsync(l.ctx, func(observatory extension.Observatory) {
+	common.Must(core.RequireFeatures(l.ctx, func(observatory extension.Observatory) error {
 		l.observatory = observatory
-	})
+		return nil
+	}))
 }
 
 func (l *LeastPingStrategy) PickOutbound(strings []string) string {

app/router/strategy_random.go

@@ -4,6 +4,7 @@ import (
 	"context"
 
 	"github.com/xtls/xray-core/app/observatory"
+	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/dice"
 	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/extension"
@@ -20,9 +21,10 @@ type RandomStrategy struct {
 func (s *RandomStrategy) InjectContext(ctx context.Context) {
 	s.ctx = ctx
 	if len(s.FallbackTag) > 0 {
-		core.RequireFeaturesAsync(s.ctx, func(observatory extension.Observatory) {
+		common.Must(core.RequireFeatures(s.ctx, func(observatory extension.Observatory) error {
 			s.observatory = observatory
-		})
+			return nil
+		}))
 	}
 }
 

app/stats/command/command.go

@@ -12,6 +12,8 @@ import (
 	"github.com/xtls/xray-core/core"
 	feature_stats "github.com/xtls/xray-core/features/stats"
 	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
 )
 
 // statsServer is an implementation of StatsService.
@@ -30,7 +32,7 @@ func NewStatsServer(manager feature_stats.Manager) StatsServiceServer {
 func (s *statsServer) GetStats(ctx context.Context, request *GetStatsRequest) (*GetStatsResponse, error) {
 	c := s.stats.GetCounter(request.Name)
 	if c == nil {
-		return nil, errors.New(request.Name, " not found.")
+		return nil, status.Error(codes.NotFound, request.Name+" not found.")
 	}
 	var value int64
 	if request.Reset_ {
@@ -49,7 +51,7 @@ func (s *statsServer) GetStats(ctx context.Context, request *GetStatsRequest) (*
 func (s *statsServer) GetStatsOnline(ctx context.Context, request *GetStatsRequest) (*GetStatsResponse, error) {
 	c := s.stats.GetOnlineMap(request.Name)
 	if c == nil {
-		return nil, errors.New(request.Name, " not found.")
+		return nil, status.Error(codes.NotFound, request.Name+" not found.")
 	}
 	value := int64(c.Count())
 	return &GetStatsResponse{
@@ -60,6 +62,24 @@ func (s *statsServer) GetStatsOnline(ctx context.Context, request *GetStatsReque
 	}, nil
 }
 
+func (s *statsServer) GetStatsOnlineIpList(ctx context.Context, request *GetStatsRequest) (*GetStatsOnlineIpListResponse, error) {
+	c := s.stats.GetOnlineMap(request.Name)
+
+	if c == nil {
+		return nil, status.Error(codes.NotFound, request.Name+" not found.")
+	}
+
+	ips := make(map[string]int64)
+	for ip, t := range c.IpTimeMap() {
+		ips[ip] = t.Unix()
+	}
+
+	return &GetStatsOnlineIpListResponse{
+		Name: request.Name,
+		Ips:  ips,
+	}, nil
+}
+
 func (s *statsServer) QueryStats(ctx context.Context, request *QueryStatsRequest) (*QueryStatsResponse, error) {
 	matcher, err := strmatcher.Substr.New(request.Pattern)
 	if err != nil {

app/stats/command/command.pb.go

@@ -424,6 +424,59 @@ func (x *SysStatsResponse) GetUptime() uint32 {
 	return 0
 }
 
+type GetStatsOnlineIpListResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Name string           `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+	Ips  map[string]int64 `protobuf:"bytes,2,rep,name=ips,proto3" json:"ips,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"varint,2,opt,name=value,proto3"`
+}
+
+func (x *GetStatsOnlineIpListResponse) Reset() {
+	*x = GetStatsOnlineIpListResponse{}
+	mi := &file_app_stats_command_command_proto_msgTypes[7]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *GetStatsOnlineIpListResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GetStatsOnlineIpListResponse) ProtoMessage() {}
+
+func (x *GetStatsOnlineIpListResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_app_stats_command_command_proto_msgTypes[7]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use GetStatsOnlineIpListResponse.ProtoReflect.Descriptor instead.
+func (*GetStatsOnlineIpListResponse) Descriptor() ([]byte, []int) {
+	return file_app_stats_command_command_proto_rawDescGZIP(), []int{7}
+}
+
+func (x *GetStatsOnlineIpListResponse) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+func (x *GetStatsOnlineIpListResponse) GetIps() map[string]int64 {
+	if x != nil {
+		return x.Ips
+	}
+	return nil
+}
+
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -432,7 +485,7 @@ type Config struct {
 
 func (x *Config) Reset() {
 	*x = Config{}
-	mi := &file_app_stats_command_command_proto_msgTypes[7]
+	mi := &file_app_stats_command_command_proto_msgTypes[8]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -444,7 +497,7 @@ func (x *Config) String() string {
 func (*Config) ProtoMessage() {}
 
 func (x *Config) ProtoReflect() protoreflect.Message {
-	mi := &file_app_stats_command_command_proto_msgTypes[7]
+	mi := &file_app_stats_command_command_proto_msgTypes[8]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -457,7 +510,7 @@ func (x *Config) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Config.ProtoReflect.Descriptor instead.
 func (*Config) Descriptor() ([]byte, []int) {
-	return file_app_stats_command_command_proto_rawDescGZIP(), []int{7}
+	return file_app_stats_command_command_proto_rawDescGZIP(), []int{8}
 }
 
 var File_app_stats_command_command_proto protoreflect.FileDescriptor
@@ -506,40 +559,60 @@ var file_app_stats_command_command_proto_rawDesc = []byte{
 	0x54, 0x6f, 0x74, 0x61, 0x6c, 0x4e, 0x73, 0x18, 0x09, 0x20, 0x01, 0x28, 0x04, 0x52, 0x0c, 0x50,
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-	0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x61, 0x70, 0x70,
-	0x2f, 0x73, 0x74, 0x61, 0x74, 0x73, 0x2f, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0xaa, 0x02,
-	0x16, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x53, 0x74, 0x61, 0x74, 0x73, 0x2e,
-	0x43, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+	0x61, 0x6e, 0x64, 0x2e, 0x53, 0x79, 0x73, 0x53, 0x74, 0x61, 0x74, 0x73, 0x52, 0x65, 0x71, 0x75,
+	0x65, 0x73, 0x74, 0x1a, 0x28, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x73,
+	0x74, 0x61, 0x74, 0x73, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x2e, 0x53, 0x79, 0x73,
+	0x53, 0x74, 0x61, 0x74, 0x73, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x12,
+	0x77, 0x0a, 0x14, 0x47, 0x65, 0x74, 0x53, 0x74, 0x61, 0x74, 0x73, 0x4f, 0x6e, 0x6c, 0x69, 0x6e,
+	0x65, 0x49, 0x70, 0x4c, 0x69, 0x73, 0x74, 0x12, 0x27, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61,
+	0x70, 0x70, 0x2e, 0x73, 0x74, 0x61, 0x74, 0x73, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64,
+	0x2e, 0x47, 0x65, 0x74, 0x53, 0x74, 0x61, 0x74, 0x73, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74,
+	0x1a, 0x34, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x73, 0x74, 0x61, 0x74,
+	0x73, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x2e, 0x47, 0x65, 0x74, 0x53, 0x74, 0x61,
+	0x74, 0x73, 0x4f, 0x6e, 0x6c, 0x69, 0x6e, 0x65, 0x49, 0x70, 0x4c, 0x69, 0x73, 0x74, 0x52, 0x65,
+	0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x42, 0x64, 0x0a, 0x1a, 0x63, 0x6f, 0x6d, 0x2e,
+	0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x73, 0x74, 0x61, 0x74, 0x73, 0x2e, 0x63,
+	0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x50, 0x01, 0x5a, 0x2b, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62,
+	0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63,
+	0x6f, 0x72, 0x65, 0x2f, 0x61, 0x70, 0x70, 0x2f, 0x73, 0x74, 0x61, 0x74, 0x73, 0x2f, 0x63, 0x6f,
+	0x6d, 0x6d, 0x61, 0x6e, 0x64, 0xaa, 0x02, 0x16, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70,
+	0x2e, 0x53, 0x74, 0x61, 0x74, 0x73, 0x2e, 0x43, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x62, 0x06,
+	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -554,33 +627,38 @@ func file_app_stats_command_command_proto_rawDescGZIP() []byte {
 	return file_app_stats_command_command_proto_rawDescData
 }
 
-var file_app_stats_command_command_proto_msgTypes = make([]protoimpl.MessageInfo, 8)
+var file_app_stats_command_command_proto_msgTypes = make([]protoimpl.MessageInfo, 10)
 var file_app_stats_command_command_proto_goTypes = []any{
-	(*GetStatsRequest)(nil),    // 0: xray.app.stats.command.GetStatsRequest
-	(*Stat)(nil),               // 1: xray.app.stats.command.Stat
-	(*GetStatsResponse)(nil),   // 2: xray.app.stats.command.GetStatsResponse
-	(*QueryStatsRequest)(nil),  // 3: xray.app.stats.command.QueryStatsRequest
-	(*QueryStatsResponse)(nil), // 4: xray.app.stats.command.QueryStatsResponse
-	(*SysStatsRequest)(nil),    // 5: xray.app.stats.command.SysStatsRequest
-	(*SysStatsResponse)(nil),   // 6: xray.app.stats.command.SysStatsResponse
-	(*Config)(nil),             // 7: xray.app.stats.command.Config
+	(*GetStatsRequest)(nil),              // 0: xray.app.stats.command.GetStatsRequest
+	(*Stat)(nil),                         // 1: xray.app.stats.command.Stat
+	(*GetStatsResponse)(nil),             // 2: xray.app.stats.command.GetStatsResponse
+	(*QueryStatsRequest)(nil),            // 3: xray.app.stats.command.QueryStatsRequest
+	(*QueryStatsResponse)(nil),           // 4: xray.app.stats.command.QueryStatsResponse
+	(*SysStatsRequest)(nil),              // 5: xray.app.stats.command.SysStatsRequest
+	(*SysStatsResponse)(nil),             // 6: xray.app.stats.command.SysStatsResponse
+	(*GetStatsOnlineIpListResponse)(nil), // 7: xray.app.stats.command.GetStatsOnlineIpListResponse
+	(*Config)(nil),                       // 8: xray.app.stats.command.Config
+	nil,                                  // 9: xray.app.stats.command.GetStatsOnlineIpListResponse.IpsEntry
 }
 var file_app_stats_command_command_proto_depIdxs = []int32{
 	1, // 0: xray.app.stats.command.GetStatsResponse.stat:type_name -> xray.app.stats.command.Stat
 	1, // 1: xray.app.stats.command.QueryStatsResponse.stat:type_name -> xray.app.stats.command.Stat
-	0, // 2: xray.app.stats.command.StatsService.GetStats:input_type -> xray.app.stats.command.GetStatsRequest
-	0, // 3: xray.app.stats.command.StatsService.GetStatsOnline:input_type -> xray.app.stats.command.GetStatsRequest
-	3, // 4: xray.app.stats.command.StatsService.QueryStats:input_type -> xray.app.stats.command.QueryStatsRequest
-	5, // 5: xray.app.stats.command.StatsService.GetSysStats:input_type -> xray.app.stats.command.SysStatsRequest
-	2, // 6: xray.app.stats.command.StatsService.GetStats:output_type -> xray.app.stats.command.GetStatsResponse
-	2, // 7: xray.app.stats.command.StatsService.GetStatsOnline:output_type -> xray.app.stats.command.GetStatsResponse
-	4, // 8: xray.app.stats.command.StatsService.QueryStats:output_type -> xray.app.stats.command.QueryStatsResponse
-	6, // 9: xray.app.stats.command.StatsService.GetSysStats:output_type -> xray.app.stats.command.SysStatsResponse
-	6, // [6:10] is the sub-list for method output_type
-	2, // [2:6] is the sub-list for method input_type
-	2, // [2:2] is the sub-list for extension type_name
-	2, // [2:2] is the sub-list for extension extendee
-	0, // [0:2] is the sub-list for field type_name
+	9, // 2: xray.app.stats.command.GetStatsOnlineIpListResponse.ips:type_name -> xray.app.stats.command.GetStatsOnlineIpListResponse.IpsEntry
+	0, // 3: xray.app.stats.command.StatsService.GetStats:input_type -> xray.app.stats.command.GetStatsRequest
+	0, // 4: xray.app.stats.command.StatsService.GetStatsOnline:input_type -> xray.app.stats.command.GetStatsRequest
+	3, // 5: xray.app.stats.command.StatsService.QueryStats:input_type -> xray.app.stats.command.QueryStatsRequest
+	5, // 6: xray.app.stats.command.StatsService.GetSysStats:input_type -> xray.app.stats.command.SysStatsRequest
+	0, // 7: xray.app.stats.command.StatsService.GetStatsOnlineIpList:input_type -> xray.app.stats.command.GetStatsRequest
+	2, // 8: xray.app.stats.command.StatsService.GetStats:output_type -> xray.app.stats.command.GetStatsResponse
+	2, // 9: xray.app.stats.command.StatsService.GetStatsOnline:output_type -> xray.app.stats.command.GetStatsResponse
+	4, // 10: xray.app.stats.command.StatsService.QueryStats:output_type -> xray.app.stats.command.QueryStatsResponse
+	6, // 11: xray.app.stats.command.StatsService.GetSysStats:output_type -> xray.app.stats.command.SysStatsResponse
+	7, // 12: xray.app.stats.command.StatsService.GetStatsOnlineIpList:output_type -> xray.app.stats.command.GetStatsOnlineIpListResponse
+	8, // [8:13] is the sub-list for method output_type
+	3, // [3:8] is the sub-list for method input_type
+	3, // [3:3] is the sub-list for extension type_name
+	3, // [3:3] is the sub-list for extension extendee
+	0, // [0:3] is the sub-list for field type_name
 }
 
 func init() { file_app_stats_command_command_proto_init() }
@@ -594,7 +672,7 @@ func file_app_stats_command_command_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_app_stats_command_command_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   8,
+			NumMessages:   10,
 			NumExtensions: 0,
 			NumServices:   1,
 		},

app/stats/command/command.proto

@@ -46,11 +46,17 @@ message SysStatsResponse {
   uint32 Uptime = 10;
 }
 
+message GetStatsOnlineIpListResponse {
+  string name = 1;
+  map<string, int64> ips = 2;
+}
+
 service StatsService {
   rpc GetStats(GetStatsRequest) returns (GetStatsResponse) {}
   rpc GetStatsOnline(GetStatsRequest) returns (GetStatsResponse) {}
   rpc QueryStats(QueryStatsRequest) returns (QueryStatsResponse) {}
   rpc GetSysStats(SysStatsRequest) returns (SysStatsResponse) {}
+  rpc GetStatsOnlineIpList(GetStatsRequest) returns (GetStatsOnlineIpListResponse) {}
 }
 
 message Config {}

app/stats/command/command_grpc.pb.go

@@ -19,10 +19,11 @@ import (
 const _ = grpc.SupportPackageIsVersion9
 
 const (
-	StatsService_GetStats_FullMethodName       = "/xray.app.stats.command.StatsService/GetStats"
-	StatsService_GetStatsOnline_FullMethodName = "/xray.app.stats.command.StatsService/GetStatsOnline"
-	StatsService_QueryStats_FullMethodName     = "/xray.app.stats.command.StatsService/QueryStats"
-	StatsService_GetSysStats_FullMethodName    = "/xray.app.stats.command.StatsService/GetSysStats"
+	StatsService_GetStats_FullMethodName             = "/xray.app.stats.command.StatsService/GetStats"
+	StatsService_GetStatsOnline_FullMethodName       = "/xray.app.stats.command.StatsService/GetStatsOnline"
+	StatsService_QueryStats_FullMethodName           = "/xray.app.stats.command.StatsService/QueryStats"
+	StatsService_GetSysStats_FullMethodName          = "/xray.app.stats.command.StatsService/GetSysStats"
+	StatsService_GetStatsOnlineIpList_FullMethodName = "/xray.app.stats.command.StatsService/GetStatsOnlineIpList"
 )
 
 // StatsServiceClient is the client API for StatsService service.
@@ -33,6 +34,7 @@ type StatsServiceClient interface {
 	GetStatsOnline(ctx context.Context, in *GetStatsRequest, opts ...grpc.CallOption) (*GetStatsResponse, error)
 	QueryStats(ctx context.Context, in *QueryStatsRequest, opts ...grpc.CallOption) (*QueryStatsResponse, error)
 	GetSysStats(ctx context.Context, in *SysStatsRequest, opts ...grpc.CallOption) (*SysStatsResponse, error)
+	GetStatsOnlineIpList(ctx context.Context, in *GetStatsRequest, opts ...grpc.CallOption) (*GetStatsOnlineIpListResponse, error)
 }
 
 type statsServiceClient struct {
@@ -83,6 +85,16 @@ func (c *statsServiceClient) GetSysStats(ctx context.Context, in *SysStatsReques
 	return out, nil
 }
 
+func (c *statsServiceClient) GetStatsOnlineIpList(ctx context.Context, in *GetStatsRequest, opts ...grpc.CallOption) (*GetStatsOnlineIpListResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(GetStatsOnlineIpListResponse)
+	err := c.cc.Invoke(ctx, StatsService_GetStatsOnlineIpList_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 // StatsServiceServer is the server API for StatsService service.
 // All implementations must embed UnimplementedStatsServiceServer
 // for forward compatibility.
@@ -91,6 +103,7 @@ type StatsServiceServer interface {
 	GetStatsOnline(context.Context, *GetStatsRequest) (*GetStatsResponse, error)
 	QueryStats(context.Context, *QueryStatsRequest) (*QueryStatsResponse, error)
 	GetSysStats(context.Context, *SysStatsRequest) (*SysStatsResponse, error)
+	GetStatsOnlineIpList(context.Context, *GetStatsRequest) (*GetStatsOnlineIpListResponse, error)
 	mustEmbedUnimplementedStatsServiceServer()
 }
 
@@ -113,6 +126,9 @@ func (UnimplementedStatsServiceServer) QueryStats(context.Context, *QueryStatsRe
 func (UnimplementedStatsServiceServer) GetSysStats(context.Context, *SysStatsRequest) (*SysStatsResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method GetSysStats not implemented")
 }
+func (UnimplementedStatsServiceServer) GetStatsOnlineIpList(context.Context, *GetStatsRequest) (*GetStatsOnlineIpListResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method GetStatsOnlineIpList not implemented")
+}
 func (UnimplementedStatsServiceServer) mustEmbedUnimplementedStatsServiceServer() {}
 func (UnimplementedStatsServiceServer) testEmbeddedByValue()                      {}
 
@@ -206,6 +222,24 @@ func _StatsService_GetSysStats_Handler(srv interface{}, ctx context.Context, dec
 	return interceptor(ctx, in, info, handler)
 }
 
+func _StatsService_GetStatsOnlineIpList_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(GetStatsRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(StatsServiceServer).GetStatsOnlineIpList(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: StatsService_GetStatsOnlineIpList_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(StatsServiceServer).GetStatsOnlineIpList(ctx, req.(*GetStatsRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 // StatsService_ServiceDesc is the grpc.ServiceDesc for StatsService service.
 // It's only intended for direct use with grpc.RegisterService,
 // and not to be introspected or modified (even as a copy)
@@ -229,6 +263,10 @@ var StatsService_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "GetSysStats",
 			Handler:    _StatsService_GetSysStats_Handler,
 		},
+		{
+			MethodName: "GetStatsOnlineIpList",
+			Handler:    _StatsService_GetStatsOnlineIpList_Handler,
+		},
 	},
 	Streams:  []grpc.StreamDesc{},
 	Metadata: "app/stats/command/command.proto",

app/stats/online_map.go

@@ -7,7 +7,6 @@ import (
 
 // OnlineMap is an implementation of stats.OnlineMap.
 type OnlineMap struct {
-	value         int
 	ipList        map[string]time.Time
 	access        sync.RWMutex
 	lastCleanup   time.Time
@@ -25,7 +24,10 @@ func NewOnlineMap() *OnlineMap {
 
 // Count implements stats.OnlineMap.
 func (c *OnlineMap) Count() int {
-	return c.value
+	c.access.RLock()
+	defer c.access.RUnlock()
+
+	return len(c.ipList)
 }
 
 // List implements stats.OnlineMap.
@@ -35,23 +37,18 @@ func (c *OnlineMap) List() []string {
 
 // AddIP implements stats.OnlineMap.
 func (c *OnlineMap) AddIP(ip string) {
-	list := c.ipList
-
 	if ip == "127.0.0.1" {
 		return
 	}
-	if _, ok := list[ip]; !ok {
-		c.access.Lock()
-		list[ip] = time.Now()
-		c.access.Unlock()
-	}
+
+	c.access.Lock()
+	c.ipList[ip] = time.Now()
+	c.access.Unlock()
+
 	if time.Since(c.lastCleanup) > c.cleanupPeriod {
-		list = c.RemoveExpiredIPs(list)
+		c.RemoveExpiredIPs()
 		c.lastCleanup = time.Now()
 	}
-
-	c.value = len(list)
-	c.ipList = list
 }
 
 func (c *OnlineMap) GetKeys() []string {
@@ -65,16 +62,24 @@ func (c *OnlineMap) GetKeys() []string {
 	return keys
 }
 
-func (c *OnlineMap) RemoveExpiredIPs(list map[string]time.Time) map[string]time.Time {
+func (c *OnlineMap) RemoveExpiredIPs() {
 	c.access.Lock()
 	defer c.access.Unlock()
 
 	now := time.Now()
-	for k, t := range list {
+	for k, t := range c.ipList {
 		diff := now.Sub(t)
 		if diff.Seconds() > 20 {
-			delete(list, k)
+			delete(c.ipList, k)
 		}
 	}
-	return list
+}
+
+func (c *OnlineMap) IpTimeMap() map[string]time.Time {
+	if time.Since(c.lastCleanup) > c.cleanupPeriod {
+		c.RemoveExpiredIPs()
+		c.lastCleanup = time.Now()
+	}
+
+	return c.ipList
 }

app/version/config.pb.go

@@ -0,0 +1,152 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.35.1
+// 	protoc        v5.28.2
+// source: app/version/config.proto
+
+package version
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type Config struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	CoreVersion string `protobuf:"bytes,1,opt,name=core_version,json=coreVersion,proto3" json:"core_version,omitempty"`
+	MinVersion  string `protobuf:"bytes,2,opt,name=min_version,json=minVersion,proto3" json:"min_version,omitempty"`
+	MaxVersion  string `protobuf:"bytes,3,opt,name=max_version,json=maxVersion,proto3" json:"max_version,omitempty"`
+}
+
+func (x *Config) Reset() {
+	*x = Config{}
+	mi := &file_app_version_config_proto_msgTypes[0]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *Config) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Config) ProtoMessage() {}
+
+func (x *Config) ProtoReflect() protoreflect.Message {
+	mi := &file_app_version_config_proto_msgTypes[0]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Config.ProtoReflect.Descriptor instead.
+func (*Config) Descriptor() ([]byte, []int) {
+	return file_app_version_config_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *Config) GetCoreVersion() string {
+	if x != nil {
+		return x.CoreVersion
+	}
+	return ""
+}
+
+func (x *Config) GetMinVersion() string {
+	if x != nil {
+		return x.MinVersion
+	}
+	return ""
+}
+
+func (x *Config) GetMaxVersion() string {
+	if x != nil {
+		return x.MaxVersion
+	}
+	return ""
+}
+
+var File_app_version_config_proto protoreflect.FileDescriptor
+
+var file_app_version_config_proto_rawDesc = []byte{
+	0x0a, 0x18, 0x61, 0x70, 0x70, 0x2f, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x2f, 0x63, 0x6f,
+	0x6e, 0x66, 0x69, 0x67, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x10, 0x78, 0x72, 0x61, 0x79,
+	0x2e, 0x61, 0x70, 0x70, 0x2e, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x22, 0x6d, 0x0a, 0x06,
+	0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x21, 0x0a, 0x0c, 0x63, 0x6f, 0x72, 0x65, 0x5f, 0x76,
+	0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0b, 0x63, 0x6f,
+	0x72, 0x65, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x12, 0x1f, 0x0a, 0x0b, 0x6d, 0x69, 0x6e,
+	0x5f, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0a,
+	0x6d, 0x69, 0x6e, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x12, 0x1f, 0x0a, 0x0b, 0x6d, 0x61,
+	0x78, 0x5f, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09, 0x52,
+	0x0a, 0x6d, 0x61, 0x78, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x42, 0x52, 0x0a, 0x14, 0x63,
+	0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x76, 0x65, 0x72, 0x73,
+	0x69, 0x6f, 0x6e, 0x50, 0x01, 0x5a, 0x25, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f,
+	0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65,
+	0x2f, 0x61, 0x70, 0x70, 0x2f, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0xaa, 0x02, 0x10, 0x58,
+	0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x62,
+	0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_app_version_config_proto_rawDescOnce sync.Once
+	file_app_version_config_proto_rawDescData = file_app_version_config_proto_rawDesc
+)
+
+func file_app_version_config_proto_rawDescGZIP() []byte {
+	file_app_version_config_proto_rawDescOnce.Do(func() {
+		file_app_version_config_proto_rawDescData = protoimpl.X.CompressGZIP(file_app_version_config_proto_rawDescData)
+	})
+	return file_app_version_config_proto_rawDescData
+}
+
+var file_app_version_config_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
+var file_app_version_config_proto_goTypes = []any{
+	(*Config)(nil), // 0: xray.app.version.Config
+}
+var file_app_version_config_proto_depIdxs = []int32{
+	0, // [0:0] is the sub-list for method output_type
+	0, // [0:0] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_app_version_config_proto_init() }
+func file_app_version_config_proto_init() {
+	if File_app_version_config_proto != nil {
+		return
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_app_version_config_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   1,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_app_version_config_proto_goTypes,
+		DependencyIndexes: file_app_version_config_proto_depIdxs,
+		MessageInfos:      file_app_version_config_proto_msgTypes,
+	}.Build()
+	File_app_version_config_proto = out.File
+	file_app_version_config_proto_rawDesc = nil
+	file_app_version_config_proto_goTypes = nil
+	file_app_version_config_proto_depIdxs = nil
+}

app/version/config.proto

@@ -0,0 +1,14 @@
+syntax = "proto3";
+
+package xray.app.version;
+option csharp_namespace = "Xray.App.Version";
+option go_package = "github.com/xtls/xray-core/app/version";
+option java_package = "com.xray.app.version";
+option java_multiple_files = true;
+
+
+message Config {
+  string core_version = 1;
+  string min_version = 2;
+  string max_version = 3;
+}

app/version/version.go

@@ -0,0 +1,77 @@
+package version
+
+import (
+	"context"
+	"github.com/xtls/xray-core/common"
+	"github.com/xtls/xray-core/common/errors"
+	"strconv"
+	"strings"
+)
+
+type Version struct {
+	config *Config
+	ctx    context.Context
+}
+
+func New(ctx context.Context, config *Config) (*Version, error) {
+	if config.MinVersion != "" {
+		result, err := compareVersions(config.MinVersion, config.CoreVersion)
+		if err != nil {
+			return nil, err
+		}
+		if result > 0 {
+			return nil, errors.New("this config must be run on version ", config.MinVersion, " or higher")
+		}
+	}
+	if config.MaxVersion != "" {
+		result, err := compareVersions(config.MaxVersion, config.CoreVersion)
+		if err != nil {
+			return nil, err
+		}
+		if result < 0 {
+			return nil, errors.New("this config should be run on version ", config.MaxVersion, " or lower")
+		}
+	}
+	return &Version{config: config, ctx: ctx}, nil
+}
+
+func compareVersions(v1, v2 string) (int, error) {
+	// Split version strings into components
+	v1Parts := strings.Split(v1, ".")
+	v2Parts := strings.Split(v2, ".")
+
+	// Pad shorter versions with zeros
+	for len(v1Parts) < len(v2Parts) {
+		v1Parts = append(v1Parts, "0")
+	}
+	for len(v2Parts) < len(v1Parts) {
+		v2Parts = append(v2Parts, "0")
+	}
+
+	// Compare each part
+	for i := 0; i < len(v1Parts); i++ {
+		// Convert parts to integers
+		n1, err := strconv.Atoi(v1Parts[i])
+		if err != nil {
+			return 0, errors.New("invalid version component ", v1Parts[i], " in ", v1)
+		}
+		n2, err := strconv.Atoi(v2Parts[i])
+		if err != nil {
+			return 0, errors.New("invalid version component ", v2Parts[i], " in ", v2)
+		}
+
+		if n1 < n2 {
+			return -1, nil // v1 < v2
+		}
+		if n1 > n2 {
+			return 1, nil // v1 > v2
+		}
+	}
+	return 0, nil // v1 == v2
+}
+
+func init() {
+	common.Must(common.RegisterConfig((*Config)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
+		return New(ctx, config.(*Config))
+	}))
+}

common/buf/buffer.go

@@ -13,8 +13,21 @@ const (
 	Size = 8192
 )
 
+var ErrBufferFull = errors.New("buffer is full")
+
+var zero = [Size * 10]byte{0}
+
 var pool = bytespool.GetPool(Size)
 
+// ownership represents the data owner of the buffer.
+type ownership uint8
+
+const (
+	managed ownership = iota
+	unmanaged
+	bytespools
+)
+
 // Buffer is a recyclable allocation of a byte array. Buffer.Release() recycles
 // the buffer into an internal buffer pool, in order to recreate a buffer more
 // quickly.
@@ -22,11 +35,11 @@ type Buffer struct {
 	v         []byte
 	start     int32
 	end       int32
-	unmanaged bool
+	ownership ownership
 	UDP       *net.Destination
 }
 
-// New creates a Buffer with 0 length and 8K capacity.
+// New creates a Buffer with 0 length and 8K capacity, managed.
 func New() *Buffer {
 	buf := pool.Get().([]byte)
 	if cap(buf) >= Size {
@@ -40,7 +53,7 @@ func New() *Buffer {
 	}
 }
 
-// NewExisted creates a managed, standard size Buffer with an existed bytearray
+// NewExisted creates a standard size Buffer with an existed bytearray, managed.
 func NewExisted(b []byte) *Buffer {
 	if cap(b) < Size {
 		panic("Invalid buffer")
@@ -57,16 +70,16 @@ func NewExisted(b []byte) *Buffer {
 	}
 }
 
-// FromBytes creates a Buffer with an existed bytearray
+// FromBytes creates a Buffer with an existed bytearray, unmanaged.
 func FromBytes(b []byte) *Buffer {
 	return &Buffer{
 		v:         b,
 		end:       int32(len(b)),
-		unmanaged: true,
+		ownership: unmanaged,
 	}
 }
 
-// StackNew creates a new Buffer object on stack.
+// StackNew creates a new Buffer object on stack, managed.
 // This method is for buffers that is released in the same function.
 func StackNew() Buffer {
 	buf := pool.Get().([]byte)
@@ -81,9 +94,17 @@ func StackNew() Buffer {
 	}
 }
 
+// NewWithSize creates a Buffer with 0 length and capacity with at least the given size, bytespool's.
+func NewWithSize(size int32) *Buffer {
+	return &Buffer{
+		v:         bytespool.Alloc(size),
+		ownership: bytespools,
+	}
+}
+
 // Release recycles the buffer into an internal buffer pool.
 func (b *Buffer) Release() {
-	if b == nil || b.v == nil || b.unmanaged {
+	if b == nil || b.v == nil || b.ownership == unmanaged {
 		return
 	}
 
@@ -91,8 +112,13 @@ func (b *Buffer) Release() {
 	b.v = nil
 	b.Clear()
 
-	if cap(p) == Size {
-		pool.Put(p)
+	switch b.ownership {
+	case managed:
+		if cap(p) == Size {
+			pool.Put(p)
+		}
+	case bytespools:
+		bytespool.Free(p)
 	}
 	b.UDP = nil
 }
@@ -128,6 +154,7 @@ func (b *Buffer) Extend(n int32) []byte {
 	}
 	ext := b.v[b.end:end]
 	b.end = end
+	copy(ext, zero[:])
 	return ext
 }
 
@@ -176,6 +203,7 @@ func (b *Buffer) Check() {
 
 // Resize cuts the buffer at the given position.
 func (b *Buffer) Resize(from, to int32) {
+	oldEnd := b.end
 	if from < 0 {
 		from += b.Len()
 	}
@@ -188,6 +216,9 @@ func (b *Buffer) Resize(from, to int32) {
 	b.end = b.start + to
 	b.start += from
 	b.Check()
+	if b.end > oldEnd {
+		copy(b.v[oldEnd:b.end], zero[:])
+	}
 }
 
 // Advance cuts the buffer at the given position.
@@ -215,11 +246,12 @@ func (b *Buffer) Cap() int32 {
 	return int32(len(b.v))
 }
 
-// NewWithSize creates a Buffer with 0 length and capacity with at least the given size.
-func NewWithSize(size int32) *Buffer {
-	return &Buffer{
-		v: bytespool.Alloc(size),
+// Available returns the available capacity of the buffer content.
+func (b *Buffer) Available() int32 {
+	if b == nil {
+		return 0
 	}
+	return int32(len(b.v)) - b.end
 }
 
 // IsEmpty returns true if the buffer is empty.
@@ -236,13 +268,16 @@ func (b *Buffer) IsFull() bool {
 func (b *Buffer) Write(data []byte) (int, error) {
 	nBytes := copy(b.v[b.end:], data)
 	b.end += int32(nBytes)
+	if nBytes < len(data) {
+		return nBytes, ErrBufferFull
+	}
 	return nBytes, nil
 }
 
 // WriteByte writes a single byte into the buffer.
 func (b *Buffer) WriteByte(v byte) error {
 	if b.IsFull() {
-		return errors.New("buffer full")
+		return ErrBufferFull
 	}
 	b.v[b.end] = v
 	b.end++

common/buf/multi_buffer.go

@@ -144,7 +144,7 @@ func Compact(mb MultiBuffer) MultiBuffer {
 
 	for i := 1; i < len(mb); i++ {
 		curr := mb[i]
-		if last.Len()+curr.Len() > Size {
+		if curr.Len() > last.Available() {
 			mb2 = append(mb2, last)
 			last = curr
 		} else {

common/buf/multi_buffer_test.go

@@ -175,6 +175,29 @@ func TestCompact(t *testing.T) {
 	}
 }
 
+func TestCompactWithConsumed(t *testing.T) {
+	// make a consumed buffer (a.Start != 0)
+	a := New()
+	for range 8192 {
+		common.Must2(a.WriteString("a"))
+	}
+	a.Read(make([]byte, 2))
+
+	b := New()
+	for range 2 {
+		common.Must2(b.WriteString("b"))
+	}
+
+	mb := MultiBuffer{a, b}
+	cmb := Compact(mb)
+	mbc := &MultiBufferContainer{mb}
+	mbc.Read(make([]byte, 8190))
+
+	if w := cmb.String(); w != "bb" {
+		t.Error("unexpected Compact result ", w)
+	}
+}
+
 func BenchmarkSplitBytes(b *testing.B) {
 	var mb MultiBuffer
 	raw := make([]byte, Size)

common/common.go

@@ -23,7 +23,9 @@ func Must(err error) {
 }
 
 // Must2 panics if the second parameter is not nil, otherwise returns the first parameter.
-func Must2(v interface{}, err error) interface{} {
+// This is useful when function returned "sth, err" and avoid many "if err != nil"
+// Internal usage only, if user input can cause err, it must be handled
+func Must2[T any](v T, err error) T {
 	Must(err)
 	return v
 }
@@ -38,7 +40,7 @@ func Error2(v interface{}, err error) error {
 func envFile() (string, error) {
 	if file := os.Getenv("GOENV"); file != "" {
 		if file == "off" {
-			return "", fmt.Errorf("GOENV=off")
+			return "", errors.New("GOENV=off")
 		}
 		return file, nil
 	}
@@ -47,7 +49,7 @@ func envFile() (string, error) {
 		return "", err
 	}
 	if dir == "" {
-		return "", fmt.Errorf("missing user-config dir")
+		return "", errors.New("missing user-config dir")
 	}
 	return filepath.Join(dir, "go", "env"), nil
 }
@@ -60,7 +62,7 @@ func GetRuntimeEnv(key string) (string, error) {
 		return "", err
 	}
 	if file == "" {
-		return "", fmt.Errorf("missing runtime env file")
+		return "", errors.New("missing runtime env file")
 	}
 	var data []byte
 	var runtimeEnv string

common/crypto/aes.go

@@ -32,9 +32,7 @@ func NewAesCTRStream(key []byte, iv []byte) cipher.Stream {
 
 // NewAesGcm creates a AEAD cipher based on AES-GCM.
 func NewAesGcm(key []byte) cipher.AEAD {
-	block, err := aes.NewCipher(key)
-	common.Must(err)
-	aead, err := cipher.NewGCM(block)
-	common.Must(err)
+	block := common.Must2(aes.NewCipher(key))
+	aead := common.Must2(cipher.NewGCM(block))
 	return aead
 }

common/crypto/auth_test.go

@@ -2,8 +2,6 @@ package crypto_test
 
 import (
 	"bytes"
-	"crypto/aes"
-	"crypto/cipher"
 	"crypto/rand"
 	"io"
 	"testing"
@@ -18,11 +16,8 @@ import (
 func TestAuthenticationReaderWriter(t *testing.T) {
 	key := make([]byte, 16)
 	rand.Read(key)
-	block, err := aes.NewCipher(key)
-	common.Must(err)
 
-	aead, err := cipher.NewGCM(block)
-	common.Must(err)
+	aead := NewAesGcm(key)
 
 	const payloadSize = 1024 * 80
 	rawPayload := make([]byte, payloadSize)
@@ -71,7 +66,7 @@ func TestAuthenticationReaderWriter(t *testing.T) {
 		t.Error(r)
 	}
 
-	_, err = reader.ReadMultiBuffer()
+	_, err := reader.ReadMultiBuffer()
 	if err != io.EOF {
 		t.Error("error: ", err)
 	}
@@ -80,11 +75,8 @@ func TestAuthenticationReaderWriter(t *testing.T) {
 func TestAuthenticationReaderWriterPacket(t *testing.T) {
 	key := make([]byte, 16)
 	common.Must2(rand.Read(key))
-	block, err := aes.NewCipher(key)
-	common.Must(err)
 
-	aead, err := cipher.NewGCM(block)
-	common.Must(err)
+	aead := NewAesGcm(key)
 
 	cache := buf.New()
 	iv := make([]byte, 12)

common/crypto/crypto.go

@@ -1,2 +1,15 @@
 // Package crypto provides common crypto libraries for Xray.
 package crypto // import "github.com/xtls/xray-core/common/crypto"
+
+import (
+	"crypto/rand"
+	"math/big"
+)
+
+func RandBetween(from int64, to int64) int64 {
+	if from == to {
+		return from
+	}
+	bigInt, _ := rand.Int(rand.Reader, big.NewInt(to-from))
+	return from + bigInt.Int64()
+}

common/errors/multi_error.go

@@ -1,6 +1,7 @@
 package errors
 
 import (
+	"errors"
 	"strings"
 )
 
@@ -36,12 +37,12 @@ func AllEqual(expected error, actual error) bool {
 			return false
 		}
 		for _, err := range errs {
-			if err != expected {
+			if !errors.Is(err, expected) {
 				return false
 			}
 		}
 		return true
 	default:
-		return errs == expected
+		return errors.Is(errs, expected)
 	}
 }

common/log/logger.go

@@ -146,7 +146,7 @@ func (w *fileLogWriter) Close() error {
 func CreateStdoutLogWriter() WriterCreator {
 	return func() Writer {
 		return &consoleLogWriter{
-			logger: log.New(os.Stdout, "", log.Ldate|log.Ltime),
+			logger: log.New(os.Stdout, "", log.Ldate|log.Ltime|log.Lmicroseconds),
 		}
 	}
 }
@@ -155,7 +155,7 @@ func CreateStdoutLogWriter() WriterCreator {
 func CreateStderrLogWriter() WriterCreator {
 	return func() Writer {
 		return &consoleLogWriter{
-			logger: log.New(os.Stderr, "", log.Ldate|log.Ltime),
+			logger: log.New(os.Stderr, "", log.Ldate|log.Ltime|log.Lmicroseconds),
 		}
 	}
 }
@@ -174,7 +174,7 @@ func CreateFileLogWriter(path string) (WriterCreator, error) {
 		}
 		return &fileLogWriter{
 			file:   file,
-			logger: log.New(file, "", log.Ldate|log.Ltime),
+			logger: log.New(file, "", log.Ldate|log.Ltime|log.Lmicroseconds),
 		}
 	}, nil
 }

common/mux/client.go

@@ -173,6 +173,7 @@ type ClientWorker struct {
 	sessionManager *SessionManager
 	link           transport.Link
 	done           *done.Instance
+	timer          *time.Ticker
 	strategy       ClientStrategy
 }
 
@@ -187,6 +188,7 @@ func NewClientWorker(stream transport.Link, s ClientStrategy) (*ClientWorker, er
 		sessionManager: NewSessionManager(),
 		link:           stream,
 		done:           done.New(),
+		timer:          time.NewTicker(time.Second * 16),
 		strategy:       s,
 	}
 
@@ -209,9 +211,12 @@ func (m *ClientWorker) Closed() bool {
 	return m.done.Done()
 }
 
+func (m *ClientWorker) GetTimer() *time.Ticker {
+	return m.timer
+}
+
 func (m *ClientWorker) monitor() {
-	timer := time.NewTicker(time.Second * 16)
-	defer timer.Stop()
+	defer m.timer.Stop()
 
 	for {
 		select {
@@ -220,7 +225,7 @@ func (m *ClientWorker) monitor() {
 			common.Close(m.link.Writer)
 			common.Interrupt(m.link.Reader)
 			return
-		case <-timer.C:
+		case <-m.timer.C:
 			size := m.sessionManager.Size()
 			if size == 0 && m.sessionManager.CloseIfNoSession() {
 				common.Must(m.done.Close())
@@ -276,6 +281,8 @@ func (m *ClientWorker) IsClosing() bool {
 	return false
 }
 
+// IsFull returns true if this ClientWorker is unable to accept more connections.
+// it might be because it is closing, or the number of connections has reached the limit.
 func (m *ClientWorker) IsFull() bool {
 	if m.IsClosing() || m.Closed() {
 		return true
@@ -289,12 +296,12 @@ func (m *ClientWorker) IsFull() bool {
 }
 
 func (m *ClientWorker) Dispatch(ctx context.Context, link *transport.Link) bool {
-	if m.IsFull() || m.Closed() {
+	if m.IsFull() {
 		return false
 	}
 
 	sm := m.sessionManager
-	s := sm.Allocate()
+	s := sm.Allocate(&m.strategy)
 	if s == nil {
 		return false
 	}

common/mux/server.go

@@ -118,9 +118,7 @@ func (w *ServerWorker) handleStatusKeepAlive(meta *FrameMetadata, reader *buf.Bu
 }
 
 func (w *ServerWorker) handleStatusNew(ctx context.Context, meta *FrameMetadata, reader *buf.BufferedReader) error {
-	// deep-clone outbounds because it is going to be mutated concurrently
-	// (Target and OriginalTarget)
-	ctx = session.ContextCloneOutbounds(ctx)
+	ctx = session.SubContextFromMuxInbound(ctx)
 	errors.LogInfo(ctx, "received request for ", meta.Target)
 	{
 		msg := &log.AccessMessage{
@@ -201,11 +199,12 @@ func (w *ServerWorker) handleStatusNew(ctx context.Context, meta *FrameMetadata,
 			transferType: protocol.TransferTypePacket,
 			XUDP:         x,
 		}
-		go handle(ctx, x.Mux, w.link.Writer)
 		x.Status = Active
 		if !w.sessionManager.Add(x.Mux) {
 			x.Mux.Close(false)
+			return errors.New("failed to add new session")
 		}
+		go handle(ctx, x.Mux, w.link.Writer)
 		return nil
 	}
 
@@ -226,18 +225,23 @@ func (w *ServerWorker) handleStatusNew(ctx context.Context, meta *FrameMetadata,
 	if meta.Target.Network == net.Network_UDP {
 		s.transferType = protocol.TransferTypePacket
 	}
-	w.sessionManager.Add(s)
+	if !w.sessionManager.Add(s) {
+		s.Close(false)
+		return errors.New("failed to add new session")
+	}
 	go handle(ctx, s, w.link.Writer)
 	if !meta.Option.Has(OptionData) {
 		return nil
 	}
 
 	rr := s.NewReader(reader, &meta.Target)
-	if err := buf.Copy(rr, s.output); err != nil {
-		buf.Copy(rr, buf.Discard)
-		return s.Close(false)
+	err = buf.Copy(rr, s.output)
+
+	if err != nil && buf.IsWriteError(err) {
+		s.Close(false)
+		return buf.Copy(rr, buf.Discard)
 	}
-	return nil
+	return err
 }
 
 func (w *ServerWorker) handleStatusKeep(meta *FrameMetadata, reader *buf.BufferedReader) error {
@@ -304,10 +308,11 @@ func (w *ServerWorker) handleFrame(ctx context.Context, reader *buf.BufferedRead
 }
 
 func (w *ServerWorker) run(ctx context.Context) {
-	input := w.link.Reader
-	reader := &buf.BufferedReader{Reader: input}
+	reader := &buf.BufferedReader{Reader: w.link.Reader}
 
 	defer w.sessionManager.Close()
+	defer common.Close(w.link.Writer)
+	defer common.Interrupt(w.link.Reader)
 
 	for {
 		select {
@@ -318,7 +323,6 @@ func (w *ServerWorker) run(ctx context.Context) {
 			if err != nil {
 				if errors.Cause(err) != io.EOF {
 					errors.LogInfoInner(ctx, err, "unexpected EOF")
-					common.Interrupt(input)
 				}
 				return
 			}

common/mux/session.go

@@ -50,11 +50,14 @@ func (m *SessionManager) Count() int {
 	return int(m.count)
 }
 
-func (m *SessionManager) Allocate() *Session {
+func (m *SessionManager) Allocate(Strategy *ClientStrategy) *Session {
 	m.Lock()
 	defer m.Unlock()
+	
+	MaxConcurrency := int(Strategy.MaxConcurrency)
+	MaxConnection := uint16(Strategy.MaxConnection)
 
-	if m.closed {
+	if m.closed || (MaxConcurrency > 0 && len(m.sessions) >= MaxConcurrency) || (MaxConnection > 0 && m.count >= MaxConnection) {
 		return nil
 	}
 

common/mux/session_test.go

@@ -9,7 +9,7 @@ import (
 func TestSessionManagerAdd(t *testing.T) {
 	m := NewSessionManager()
 
-	s := m.Allocate()
+	s := m.Allocate(&ClientStrategy{})
 	if s.ID != 1 {
 		t.Error("id: ", s.ID)
 	}
@@ -17,7 +17,7 @@ func TestSessionManagerAdd(t *testing.T) {
 		t.Error("size: ", m.Size())
 	}
 
-	s = m.Allocate()
+	s = m.Allocate(&ClientStrategy{})
 	if s.ID != 2 {
 		t.Error("id: ", s.ID)
 	}
@@ -39,7 +39,7 @@ func TestSessionManagerAdd(t *testing.T) {
 
 func TestSessionManagerClose(t *testing.T) {
 	m := NewSessionManager()
-	s := m.Allocate()
+	s := m.Allocate(&ClientStrategy{})
 
 	if m.CloseIfNoSession() {
 		t.Error("able to close")

common/net/destination.go

@@ -89,12 +89,10 @@ func UnixDestination(address Address) Destination {
 // NetAddr returns the network address in this Destination in string form.
 func (d Destination) NetAddr() string {
 	addr := ""
-	if d.Address != nil {
-		if d.Network == Network_TCP || d.Network == Network_UDP {
-			addr = d.Address.String() + ":" + d.Port.String()
-		} else if d.Network == Network_UNIX {
-			addr = d.Address.String()
-		}
+	if d.Network == Network_TCP || d.Network == Network_UDP {
+		addr = d.Address.String() + ":" + d.Port.String()
+	} else if d.Network == Network_UNIX {
+		addr = d.Address.String()
 	}
 	return addr
 }

common/net/net.go

@@ -1,2 +1,14 @@
 // Package net is a drop-in replacement to Golang's net package, with some more functionalities.
 package net // import "github.com/xtls/xray-core/common/net"
+
+import "time"
+
+// defines the maximum time an idle TCP session can survive in the tunnel, so
+// it should be consistent across HTTP versions and with other transports.
+const ConnIdleTimeout = 300 * time.Second
+
+// consistent with quic-go
+const QuicgoH3KeepAlivePeriod = 10 * time.Second
+
+// consistent with chrome
+const ChromeH2KeepAlivePeriod = 45 * time.Second

common/net/system.go

@@ -76,8 +76,9 @@ type (
 )
 
 var (
-	ResolveUnixAddr = net.ResolveUnixAddr
+	ResolveTCPAddr  = net.ResolveTCPAddr
 	ResolveUDPAddr  = net.ResolveUDPAddr
+	ResolveUnixAddr = net.ResolveUnixAddr
 )
 
 type Resolver = net.Resolver

common/platform/filesystem/file.go

@@ -3,6 +3,7 @@ package filesystem
 import (
 	"io"
 	"os"
+	"path/filepath"
 
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/platform"
@@ -28,6 +29,13 @@ func ReadAsset(file string) ([]byte, error) {
 	return ReadFile(platform.GetAssetLocation(file))
 }
 
+func ReadCert(file string) ([]byte, error) {
+	if filepath.IsAbs(file) {
+		return ReadFile(file)
+	}
+	return ReadFile(platform.GetCertLocation(file))
+}
+
 func CopyFile(dst string, src string) error {
 	bytes, err := ReadFile(src)
 	if err != nil {

common/platform/others.go

@@ -21,7 +21,7 @@ func GetToolLocation(file string) string {
 	return filepath.Join(toolPath, file)
 }
 
-// GetAssetLocation searches for `file` in certain locations
+// GetAssetLocation searches for `file` in the env dir, the executable dir, and certain locations
 func GetAssetLocation(file string) string {
 	assetPath := NewEnvFlag(AssetLocation).GetValue(getExecutableDir)
 	defPath := filepath.Join(assetPath, file)
@@ -42,3 +42,9 @@ func GetAssetLocation(file string) string {
 	// asset not found, let the caller throw out the error
 	return defPath
 }
+
+// GetCertLocation searches for `file` in the env dir and the executable dir
+func GetCertLocation(file string) string {
+	certPath := NewEnvFlag(CertLocation).GetValue(getExecutableDir)
+	return filepath.Join(certPath, file)
+}

common/platform/platform.go

@@ -13,6 +13,7 @@ const (
 	ConfdirLocation = "xray.location.confdir"
 	ToolLocation    = "xray.location.tool"
 	AssetLocation   = "xray.location.asset"
+	CertLocation    = "xray.location.cert"
 
 	UseReadV         = "xray.buf.readv"
 	UseFreedomSplice = "xray.buf.splice"