Add listable

And use `,` as the separator instead of `~`/array

https://github.com/XTLS/Xray-core/pull/5567#issuecomment-3766081805
https://t.me/projectXtls/1464
https://t.me/projectXtls/1465
https://t.me/projectXtls/1466
https://github.com/XTLS/Xray-core/pull/5625#issuecomment-3824855736

.github/docker/Dockerfile

@@ -6,7 +6,7 @@ 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
+RUN GOOS=$TARGETOS GOARCH=$TARGETARCH CGO_ENABLED=0 go build -o xray -trimpath -buildvcs=false -gcflags="all=-l=4" -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

.github/docker/Dockerfile.usa

@@ -6,7 +6,7 @@ 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
+RUN GOOS=$TARGETOS GOARCH=$TARGETARCH CGO_ENABLED=0 go build -o xray -trimpath -buildvcs=false -gcflags="all=-l=4" -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

.github/workflows/docker.yml

@@ -65,7 +65,7 @@ jobs:
           echo "LATEST=$LATEST" >>${GITHUB_ENV}
 
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3

.github/workflows/release-win7.yml

@@ -13,11 +13,17 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Restore Geodat Cache
-        uses: actions/cache/restore@v4
+        uses: actions/cache/restore@v5
         with:
           path: resources
           key: xray-geodat-
 
+      - name: Restore Wintun Cache
+        uses: actions/cache/restore@v5
+        with:
+          path: resources
+          key: xray-wintun-
+
       - name: Check Assets Existence
         id: check-assets
         run: |
@@ -34,6 +40,18 @@ jobs:
               break
             fi
           done
+          LIST=('amd64' 'x86')
+          for ARCHITECTURE in "${LIST[@]}"
+          do
+            echo -e "Checking wintun.dll for ${ARCHITECTURE}..."
+            if [ -s "./resources/wintun/bin/${ARCHITECTURE}/wintun.dll" ]; then
+              echo -e "wintun.dll for ${ARCHITECTURE} exists."
+            else
+              echo -e "wintun.dll for ${ARCHITECTURE} is missing."
+              echo "missing=true" >> $GITHUB_OUTPUT
+              break
+            fi
+          done
 
       - name: Sleep for 90 seconds if Assets Missing
         if: steps.check-assets.outputs.missing == 'true'
@@ -63,7 +81,7 @@ jobs:
       CGO_ENABLED: 0
     steps:
       - name: Checkout codebase
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Show workflow information
         run: |
@@ -72,7 +90,7 @@ jobs:
           echo "ASSET_NAME=$_NAME" >> $GITHUB_ENV
 
       - name: Set up Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version-file: go.mod
           check-latest: true
@@ -95,20 +113,38 @@ jobs:
           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
+        uses: actions/cache/restore@v5
         with:
           path: resources
           key: xray-geodat-
 
+      - name: Restore Wintun Cache
+        uses: actions/cache/restore@v5
+        with:
+          path: resources
+          key: xray-wintun-
+
+      - name: Add additional assets into package
+        run: |
+          mv -f resources/geo* build_assets/
+          if [[ ${GOOS} == 'windows' ]]; then
+            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
+            if [[ ${GOARCH} == 'amd64' ]]; then
+              mv resources/wintun/bin/amd64/wintun.dll build_assets/
+            fi
+            if [[ ${GOARCH} == '386' ]]; then
+              mv resources/wintun/bin/x86/wintun.dll build_assets/
+            fi
+            mv resources/wintun/LICENSE.txt build_assets/LICENSE-wintun.txt
+          fi
+
       - 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
 
@@ -127,17 +163,6 @@ jobs:
             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-${{ env.ASSET_NAME }}/*
-
       - name: Upload binaries to release
         uses: svenstaro/upload-release-action@v2
         if: github.event_name == 'release'
@@ -146,3 +171,10 @@ jobs:
           file: ./Xray-${{ env.ASSET_NAME }}.zip*
           tag: ${{ github.ref }}
           file_glob: true
+
+      - name: Upload files to Artifacts
+        uses: actions/upload-artifact@v6
+        with:
+          name: Xray-${{ env.ASSET_NAME }}
+          path: |
+            ./build_assets/*

.github/workflows/release.yml

@@ -13,11 +13,17 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Restore Geodat Cache
-        uses: actions/cache/restore@v4
+        uses: actions/cache/restore@v5
         with:
           path: resources
           key: xray-geodat-
 
+      - name: Restore Wintun Cache
+        uses: actions/cache/restore@v5
+        with:
+          path: resources
+          key: xray-wintun-
+
       - name: Check Assets Existence
         id: check-assets
         run: |
@@ -34,10 +40,22 @@ jobs:
               break
             fi
           done
+          LIST=('amd64' 'x86' 'arm64' 'arm')
+          for ARCHITECTURE in "${LIST[@]}"
+          do
+            echo -e "Checking wintun.dll for ${ARCHITECTURE}..."
+            if [ -s "./resources/wintun/bin/${ARCHITECTURE}/wintun.dll" ]; then
+              echo -e "wintun.dll for ${ARCHITECTURE} exists."
+            else
+              echo -e "wintun.dll for ${ARCHITECTURE} is missing."
+              echo "missing=true" >> $GITHUB_OUTPUT
+              break
+            fi
+          done
 
       - name: Trigger Asset Update Workflow if Assets Missing
         if: steps.check-assets.outputs.missing == 'true'
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           script: |
@@ -153,7 +171,7 @@ jobs:
       CGO_ENABLED: 0
     steps:
       - name: Checkout codebase
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up NDK
         if: matrix.goos == 'android'
@@ -176,7 +194,7 @@ jobs:
           echo "ASSET_NAME=$_NAME" >> $GITHUB_ENV
 
       - name: Set up Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version-file: go.mod
           check-latest: true
@@ -191,8 +209,6 @@ jobs:
           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
@@ -207,14 +223,41 @@ jobs:
           fi
 
       - name: Restore Geodat Cache
-        uses: actions/cache/restore@v4
+        uses: actions/cache/restore@v5
         with:
           path: resources
           key: xray-geodat-
 
+      - name: Restore Wintun Cache
+        if: matrix.goos == 'windows'
+        uses: actions/cache/restore@v5
+        with:
+          path: resources
+          key: xray-wintun-
+
+      - name: Add additional assets into package
+        run: |
+          mv -f resources/geo* build_assets/
+          if [[ ${GOOS} == 'windows' ]]; then
+            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
+            if [[ ${GOARCH} == 'amd64' ]]; then
+              mv resources/wintun/bin/amd64/wintun.dll build_assets/
+            fi
+            if [[ ${GOARCH} == '386' ]]; then
+              mv resources/wintun/bin/x86/wintun.dll build_assets/
+            fi
+            if [[ ${GOARCH} == 'arm64' ]]; then
+              mv resources/wintun/bin/arm64/wintun.dll build_assets/
+            fi
+            if [[ ${GOARCH} == 'arm' ]]; then
+              mv resources/wintun/bin/arm/wintun.dll build_assets/
+            fi
+            mv resources/wintun/LICENSE.txt build_assets/LICENSE-wintun.txt
+          fi
+
       - 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
 
@@ -233,17 +276,6 @@ jobs:
             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-${{ env.ASSET_NAME }}/*
-
       - name: Upload binaries to release
         uses: svenstaro/upload-release-action@v2
         if: github.event_name == 'release'
@@ -252,3 +284,10 @@ jobs:
           file: ./Xray-${{ env.ASSET_NAME }}.zip*
           tag: ${{ github.ref }}
           file_glob: true
+
+      - name: Upload files to Artifacts
+        uses: actions/upload-artifact@v6
+        with:
+          name: Xray-${{ env.ASSET_NAME }}
+          path: |
+            ./build_assets/*

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

@@ -4,6 +4,7 @@ name: Scheduled assets update
 #       routine manner, for example: GeoIP/GeoSite.
 #       Currently updating:
 #       - Geodat (GeoIP/Geosite)
+#       - Wintun (wintun.dll)
 
 on:
   workflow_dispatch:
@@ -21,11 +22,11 @@ on:
 
 jobs:
   geodat:
-    if: github.event.schedule == '30 22 * * *' || github.event_name == 'push'|| github.event_name == 'pull_request' || github.event_name == 'workflow_dispatch'
+    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
+        uses: actions/cache/restore@v5
         with:
           path: resources
           key: xray-geodat-
@@ -58,8 +59,71 @@ jobs:
             done
 
       - name: Save Geodat Cache
-        uses: actions/cache/save@v4
+        uses: actions/cache/save@v5
         if: ${{ steps.update.outputs.unhit }}
         with:
           path: resources
           key: xray-geodat-${{ github.sha }}-${{ github.run_number }}
+
+  wintun:
+    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 Wintun Cache
+        uses: actions/cache/restore@v5
+        with:
+          path: resources
+          key: xray-wintun-
+
+      - name: Force downloading if run manually or on file update
+        if: github.event_name == 'workflow_dispatch' || github.event_name == 'push'
+        run: |
+          echo "FORCE_UPDATE=true" >> $GITHUB_ENV
+
+      - name: Update Wintun
+        id: update
+        uses: nick-fields/retry@v3
+        with:
+          timeout_minutes: 60
+          retry_wait_seconds: 60
+          max_attempts: 60
+          command: |
+            [ -d 'resources' ] || mkdir resources
+            LIST=('amd64' 'x86' 'arm64' 'arm')
+            for ARCHITECTURE in "${LIST[@]}"
+            do
+              FILE_PATH="resources/wintun/bin/${ARCHITECTURE}/wintun.dll"
+              echo -e "Checking if wintun.dll for ${ARCHITECTURE} exists..."
+              if [ -s "./resources/wintun/bin/${ARCHITECTURE}/wintun.dll" ]; then
+                  echo -e "wintun.dll for ${ARCHITECTURE} exists"
+                  continue
+              else
+                  echo -e "wintun.dll for ${ARCHITECTURE} is missing"
+                  missing=true
+              fi
+            done
+            if [ -s "./resources/wintun/LICENSE.txt" ]; then
+              echo -e "LICENSE for Wintun exists"
+            else
+              echo -e "LICENSE for Wintun is missing"
+              missing=true
+            fi
+            if [[ -v FORCE_UPDATE ]]; then
+              missing=true
+            fi
+            if [[ "$missing" == true ]]; then
+              FILENAME=wintun.zip
+              DOWNLOAD_FILE=wintun-0.14.1.zip
+              echo -e "Downloading https://www.wintun.net/builds/${DOWNLOAD_FILE}..."
+              curl -L "https://www.wintun.net/builds/${DOWNLOAD_FILE}" -o "${FILENAME}"
+              echo -e "Unpacking wintun..."
+              unzip -u ${FILENAME} -d resources/
+              echo "unhit=true" >> $GITHUB_OUTPUT
+            fi
+
+      - name: Save Wintun Cache
+        uses: actions/cache/save@v5
+        if: ${{ steps.update.outputs.unhit }}
+        with:
+          path: resources
+          key: xray-wintun-${{ github.sha }}-${{ github.run_number }}

.github/workflows/test.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Restore Geodat Cache
-        uses: actions/cache/restore@v4
+        uses: actions/cache/restore@v5
         with:
           path: resources
           key: xray-geodat-
@@ -45,14 +45,14 @@ jobs:
         os: [windows-latest, ubuntu-latest, macos-latest]
     steps:
       - name: Checkout codebase
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Set up Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version-file: go.mod
           check-latest: true
       - name: Restore Geodat Cache
-        uses: actions/cache/restore@v4
+        uses: actions/cache/restore@v5
         with:
           path: resources
           key: xray-geodat-

README.md

@@ -4,15 +4,30 @@
 
 [README](https://github.com/XTLS/Xray-core#readme) is open, so feel free to submit your project [here](https://github.com/XTLS/Xray-core/pulls).
 
+## Sponsors
+
+[![Remnawave](https://github.com/user-attachments/assets/a22d34ae-01ee-441c-843a-85356748ed1e)](https://docs.rw)
+
+[![Happ](https://github.com/user-attachments/assets/14055dab-e8bb-48bd-89e8-962709e4098e)](https://happ.su)
+
+[**Sponsor Xray-core**](https://github.com/XTLS/Xray-core/issues/3668)
+
 ## 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)
 
+- **TRX(Tron)/USDT/USDC: `TNrDh5VSfwd4RPrwsohr6poyNTfFefNYan`**
+- **TON: `UQApeV-u2gm43aC1uP76xAC1m6vCylstaN1gpfBmre_5IyTH`**
+- **BTC: `1JpqcziZZuqv3QQJhZGNGBVdCBrGgkL6cT`**
+- **XMR: `4ABHQZ3yJZkBnLoqiKvb3f8eqUnX4iMPb6wdant5ZLGQELctcerceSGEfJnoCk6nnyRZm73wrwSgvZ2WmjYLng6R7sR67nq`**
+- **SOL/USDT/USDC: `3x5NuXHzB5APG6vRinPZcsUv5ukWUY1tBGRSJiEJWtZa`**
 - **ETH/USDT/USDC: `0xDc3Fe44F0f25D13CACb1C4896CD0D321df3146Ee`**
+- **Project X NFT: https://opensea.io/item/ethereum/0x5ee362866001613093361eb8569d59c4141b76d1/1**
+- **VLESS NFT: https://opensea.io/collection/vless**
 - **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)**
+- **Related links: [VLESS Post-Quantum Encryption](https://github.com/XTLS/Xray-core/pull/5067), [XHTTP: Beyond REALITY](https://github.com/XTLS/Xray-core/discussions/4113), [Announcement of NFTs by Project X](https://github.com/XTLS/Xray-core/discussions/3633)**
 
 ## License
 
@@ -41,11 +56,15 @@
   - [ghcr.io/xtls/xray-core](https://ghcr.io/xtls/xray-core) (**Official**)
   - [teddysun/xray](https://hub.docker.com/r/teddysun/xray)
   - [wulabing/xray_docker](https://github.com/wulabing/xray_docker)
-- Web Panel - **WARNING: Please DO NOT USE plain HTTP panels like 3X-UI**, as they are believed to be bribed by Iran GFW for supporting plain HTTP by default and refused to change (https://github.com/XTLS/Xray-core/pull/3884#issuecomment-2439595331), which has already put many users' data security in danger in the past few years. **If you are already using 3X-UI, please switch to the following panels, which are verified to support HTTPS and SSH port forwarding only:**
+- Web Panel
   - [Remnawave](https://github.com/remnawave/panel)
-  - [Marzban](https://github.com/Gozargah/Marzban)
+  - [3X-UI](https://github.com/MHSanaei/3x-ui)
+  - [PasarGuard](https://github.com/PasarGuard/panel)
   - [Xray-UI](https://github.com/qist/xray-ui)
+  - [X-Panel](https://github.com/xeefei/X-Panel)
+  - [Marzban](https://github.com/Gozargah/Marzban)
   - [Hiddify](https://github.com/hiddify/Hiddify-Manager)
+  - [TX-UI](https://github.com/AghayeCoder/tx-ui)
 - 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), [VPainLess](https://github.com/vpainless/vpainless)
@@ -76,11 +95,12 @@
 ## GUI Clients
 
 - OpenWrt
-  - [PassWall](https://github.com/xiaorouji/openwrt-passwall), [PassWall 2](https://github.com/xiaorouji/openwrt-passwall2)
+  - [PassWall](https://github.com/Openwrt-Passwall/openwrt-passwall), [PassWall 2](https://github.com/Openwrt-Passwall/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)
+  - [fancyss](https://github.com/hq450/fancyss)
 - Windows
   - [v2rayN](https://github.com/2dust/v2rayN)
   - [Furious](https://github.com/LorenEteval/Furious)
@@ -93,29 +113,33 @@
   - [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))
+  - [Happ](https://apps.apple.com/app/happ-proxy-utility/id6504287215) | [Happ RU](https://apps.apple.com/ru/app/happ-proxy-utility-plus/id6746188973) | [Happ 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)
+  - [Happ](https://apps.apple.com/app/happ-proxy-utility/id6504287215) | [Happ RU](https://apps.apple.com/ru/app/happ-proxy-utility-plus/id6746188973)
   - [V2rayU](https://github.com/yanue/V2rayU)
   - [V2RayXS](https://github.com/tzmax/V2RayXS)
   - [Furious](https://github.com/LorenEteval/Furious)
   - [OneXray](https://github.com/OneXray/OneXray)
   - [GoXRay](https://github.com/goxray/desktop)
   - [AnyPortal](https://github.com/AnyPortal/AnyPortal)
+  - [v2rayN](https://github.com/2dust/v2rayN)
 - 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)
+  - [v2rayN](https://github.com/2dust/v2rayN)
 
 ## Others that support VLESS, XTLS, REALITY, XUDP, PLUX...
 
 - iOS & macOS arm64 & tvOS
   - [Shadowrocket](https://apps.apple.com/app/shadowrocket/id932747118)
   - [Loon](https://apps.apple.com/us/app/loon/id1373567447)
+  - [Egern](https://apps.apple.com/us/app/egern/id1616105820)
+  - [Quantumult X](https://apps.apple.com/us/app/quantumult-x/id1443988620)
 - Xray Tools
   - [xray-knife](https://github.com/lilendian0x00/xray-knife)
   - [xray-checker](https://github.com/kutovoys/xray-checker)

SECURITY.md

@@ -0,0 +1,5 @@
+# Security Policy
+
+If you found an issue related to security vulnerability or protocol-identification problem, please report it to us via "[Report a vulnerability](https://github.com/XTLS/Xray-core/security/advisories/new)" privately, instead of publish it publicly before we release the fixed version.
+
+Thanks for your contribution to the FREE Internet!

app/dispatcher/default.go

@@ -29,7 +29,7 @@ var errSniffingTimeout = errors.New("timeout on sniffing")
 
 type cachedReader struct {
 	sync.Mutex
-	reader *pipe.Reader
+	reader buf.TimeoutReader // *pipe.Reader or *buf.TimeoutWrapperReader
 	cache  buf.MultiBuffer
 }
 
@@ -87,7 +87,9 @@ func (r *cachedReader) Interrupt() {
 		r.cache = buf.ReleaseMulti(r.cache)
 	}
 	r.Unlock()
-	r.reader.Interrupt()
+	if p, ok := r.reader.(*pipe.Reader); ok {
+		p.Interrupt()
+	}
 }
 
 // DefaultDispatcher is a default implementation of Dispatcher.
@@ -194,6 +196,47 @@ func (d *DefaultDispatcher) getLink(ctx context.Context) (*transport.Link, *tran
 	return inboundLink, outboundLink
 }
 
+func WrapLink(ctx context.Context, policyManager policy.Manager, statsManager stats.Manager, link *transport.Link) *transport.Link {
+	sessionInbound := session.InboundFromContext(ctx)
+	var user *protocol.MemoryUser
+	if sessionInbound != nil {
+		user = sessionInbound.User
+	}
+
+	link.Reader = &buf.TimeoutWrapperReader{Reader: link.Reader}
+
+	if user != nil && len(user.Email) > 0 {
+		p := policyManager.ForLevel(user.Level)
+		if p.Stats.UserUplink {
+			name := "user>>>" + user.Email + ">>>traffic>>>uplink"
+			if c, _ := stats.GetOrRegisterCounter(statsManager, name); c != nil {
+				link.Reader.(*buf.TimeoutWrapperReader).Counter = c
+			}
+		}
+		if p.Stats.UserDownlink {
+			name := "user>>>" + user.Email + ">>>traffic>>>downlink"
+			if c, _ := stats.GetOrRegisterCounter(statsManager, name); c != nil {
+				link.Writer = &SizeStatWriter{
+					Counter: c,
+					Writer:  link.Writer,
+				}
+			}
+		}
+		if p.Stats.UserOnline {
+			name := "user>>>" + user.Email + ">>>online"
+			if om, _ := stats.GetOrRegisterOnlineMap(statsManager, name); om != nil {
+				sessionInbounds := session.InboundFromContext(ctx)
+				userIP := sessionInbounds.Source.Address.String()
+				om.AddIP(userIP)
+				// log Online user with ips
+				// errors.LogDebug(ctx, "user>>>" + user.Email + ">>>online", om.Count(), om.List())
+			}
+		}
+	}
+
+	return link
+}
+
 func (d *DefaultDispatcher) shouldOverride(ctx context.Context, result SniffResult, request session.SniffingRequest, destination net.Destination) bool {
 	domain := result.Domain()
 	if domain == "" {
@@ -314,12 +357,13 @@ func (d *DefaultDispatcher) DispatchLink(ctx context.Context, destination net.De
 		content = new(session.Content)
 		ctx = session.ContextWithContent(ctx, content)
 	}
+	outbound = WrapLink(ctx, d.policy, d.stats, outbound)
 	sniffingRequest := content.SniffingRequest
 	if !sniffingRequest.Enabled {
 		d.routedDispatch(ctx, outbound, destination)
 	} else {
 		cReader := &cachedReader{
-			reader: outbound.Reader.(*pipe.Reader),
+			reader: outbound.Reader.(buf.TimeoutReader),
 		}
 		outbound.Reader = cReader
 		result, err := sniffer(ctx, cReader, sniffingRequest.MetadataOnly, destination.Network)
@@ -405,6 +449,7 @@ func sniffer(ctx context.Context, cReader *cachedReader, metadataOnly bool, netw
 	}
 	return contentResult, contentErr
 }
+
 func (d *DefaultDispatcher) routedDispatch(ctx context.Context, link *transport.Link, destination net.Destination) {
 	outbounds := session.OutboundsFromContext(ctx)
 	ob := outbounds[len(outbounds)-1]
@@ -439,6 +484,9 @@ func (d *DefaultDispatcher) routedDispatch(ctx context.Context, link *transport.
 				handler = h
 			} else {
 				errors.LogWarning(ctx, "non existing outTag: ", outTag)
+				common.Close(link.Writer)
+				common.Interrupt(link.Reader)
+				return // DO NOT CHANGE: the traffic shouldn't be processed by default outbound if the specified outbound tag doesn't exist (yet), e.g., VLESS Reverse Proxy
 			}
 		} else {
 			errors.LogInfo(ctx, "default route for ", destination)

app/dns/cache_controller.go

@@ -3,36 +3,55 @@ package dns
 import (
 	"context"
 	go_errors "errors"
+	"runtime"
+	"sync"
+	"time"
+
 	"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"
+	"golang.org/x/sync/singleflight"
+)
+
+const (
+	minSizeForEmptyRebuild  = 512
+	shrinkAbsoluteThreshold = 10240
+	shrinkRatioThreshold    = 0.65
+	migrationBatchSize      = 4096
 )
 
 type CacheController struct {
+	name            string
+	disableCache    bool
+	serveStale      bool
+	serveExpiredTTL int32
+
+	ips      map[string]*record
+	dirtyips map[string]*record
+
 	sync.RWMutex
-	ips          map[string]*record
-	pub          *pubsub.Service
-	cacheCleanup *task.Periodic
-	name         string
-	disableCache bool
+	pub           *pubsub.Service
+	cacheCleanup  *task.Periodic
+	highWatermark int
+	requestGroup  singleflight.Group
 }
 
-func NewCacheController(name string, disableCache bool) *CacheController {
+func NewCacheController(name string, disableCache bool, serveStale bool, serveExpiredTTL uint32) *CacheController {
 	c := &CacheController{
-		name:         name,
-		disableCache: disableCache,
-		ips:          make(map[string]*record),
-		pub:          pubsub.NewService(),
+		name:            name,
+		disableCache:    disableCache,
+		serveStale:      serveStale,
+		serveExpiredTTL: -int32(serveExpiredTTL),
+		ips:             make(map[string]*record),
+		pub:             pubsub.NewService(),
 	}
 
 	c.cacheCleanup = &task.Periodic{
-		Interval: time.Minute,
+		Interval: 300 * time.Second,
 		Execute:  c.CacheCleanup,
 	}
 	return c
@@ -40,131 +59,263 @@ func NewCacheController(name string, disableCache bool) *CacheController {
 
 // 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...")
+	expiredKeys, err := c.collectExpiredKeys()
+	if err != nil {
+		return err
 	}
-
-	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(expiredKeys) == 0 {
+		return nil
 	}
-
-	if len(c.ips) == 0 {
-		c.ips = make(map[string]*record)
-	}
-
+	c.writeAndShrink(expiredKeys)
 	return nil
 }
 
-func (c *CacheController) updateIP(req *dnsRequest, ipRec *IPRecord) {
-	elapsed := time.Since(req.start)
+func (c *CacheController) collectExpiredKeys() ([]string, error) {
+	c.RLock()
+	defer c.RUnlock()
 
-	c.Lock()
-	rec, found := c.ips[req.domain]
-	if !found {
-		rec = &record{}
+	if len(c.ips) == 0 {
+		return nil, errors.New("nothing to do. stopping...")
 	}
 
-	switch req.reqType {
-	case dnsmessage.TypeA:
-		rec.A = ipRec
-	case dnsmessage.TypeAAAA:
-		rec.AAAA = ipRec
+	// skip collection if a migration is in progress
+	if c.dirtyips != nil {
+		return nil, nil
 	}
 
-	errors.LogInfo(context.Background(), c.name, " got answer: ", req.domain, " ", req.reqType, " -> ", ipRec.IP, " ", elapsed)
-	c.ips[req.domain] = rec
+	now := time.Now()
+	if c.serveStale && c.serveExpiredTTL != 0 {
+		now = now.Add(time.Duration(c.serveExpiredTTL) * time.Second)
+	}
 
-	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)
-			}
+	expiredKeys := make([]string, 0, len(c.ips)/4) // pre-allocate
+
+	for domain, rec := range c.ips {
+		if (rec.A != nil && rec.A.Expire.Before(now)) ||
+			(rec.AAAA != nil && rec.AAAA.Expire.Before(now)) {
+			expiredKeys = append(expiredKeys, domain)
 		}
 	}
 
-	c.Unlock()
-	common.Must(c.cacheCleanup.Start())
+	return expiredKeys, nil
 }
 
-func (c *CacheController) findIPsForDomain(domain string, option dns_feature.IPOption) ([]net.IP, uint32, error) {
+func (c *CacheController) writeAndShrink(expiredKeys []string) {
+	c.Lock()
+	defer c.Unlock()
+
+	// double check to prevent upper call multiple cleanup tasks
+	if c.dirtyips != nil {
+		return
+	}
+
+	lenBefore := len(c.ips)
+	if lenBefore > c.highWatermark {
+		c.highWatermark = lenBefore
+	}
+
+	now := time.Now()
+	if c.serveStale && c.serveExpiredTTL != 0 {
+		now = now.Add(time.Duration(c.serveExpiredTTL) * time.Second)
+	}
+
+	for _, domain := range expiredKeys {
+		rec := c.ips[domain]
+		if rec == nil {
+			continue
+		}
+		if rec.A != nil && rec.A.Expire.Before(now) {
+			rec.A = nil
+		}
+		if rec.AAAA != nil && rec.AAAA.Expire.Before(now) {
+			rec.AAAA = nil
+		}
+		if rec.A == nil && rec.AAAA == nil {
+			delete(c.ips, domain)
+		}
+	}
+
+	lenAfter := len(c.ips)
+
+	if lenAfter == 0 {
+		if c.highWatermark >= minSizeForEmptyRebuild {
+			errors.LogDebug(context.Background(), c.name,
+				" rebuilding empty cache map to reclaim memory.",
+				" size_before_cleanup=", lenBefore,
+				" peak_size_before_rebuild=", c.highWatermark,
+			)
+
+			c.ips = make(map[string]*record)
+			c.highWatermark = 0
+		}
+		return
+	}
+
+	if reductionFromPeak := c.highWatermark - lenAfter; reductionFromPeak > shrinkAbsoluteThreshold &&
+		float64(reductionFromPeak) > float64(c.highWatermark)*shrinkRatioThreshold {
+		errors.LogDebug(context.Background(), c.name,
+			" shrinking cache map to reclaim memory.",
+			" new_size=", lenAfter,
+			" peak_size_before_shrink=", c.highWatermark,
+			" reduction_since_peak=", reductionFromPeak,
+		)
+
+		c.dirtyips = c.ips
+		c.ips = make(map[string]*record, int(float64(lenAfter)*1.1))
+		c.highWatermark = lenAfter
+		go c.migrate()
+	}
+
+}
+
+type migrationEntry struct {
+	key   string
+	value *record
+}
+
+func (c *CacheController) migrate() {
+	defer func() {
+		if r := recover(); r != nil {
+			errors.LogError(context.Background(), c.name, " panic during cache migration: ", r)
+			c.Lock()
+			c.dirtyips = nil
+			// c.ips = make(map[string]*record)
+			// c.highWatermark = 0
+			c.Unlock()
+		}
+	}()
+
 	c.RLock()
-	record, found := c.ips[domain]
+	dirtyips := c.dirtyips
 	c.RUnlock()
 
-	if !found {
-		return nil, 0, errRecordNotFound
+	// double check to prevent upper call multiple cleanup tasks
+	if dirtyips == nil {
+		return
 	}
 
-	var errs []error
-	var allIPs []net.IP
-	var rTTL uint32 = dns_feature.DefaultTTL
+	errors.LogDebug(context.Background(), c.name, " starting background cache migration for ", len(dirtyips), " items")
 
-	mergeReq := option.IPv4Enable && option.IPv6Enable
+	batch := make([]migrationEntry, 0, migrationBatchSize)
+	for domain, recD := range dirtyips {
+		batch = append(batch, migrationEntry{domain, recD})
 
-	if option.IPv4Enable {
-		ips, ttl, err := record.A.getIPs()
-		if !mergeReq || go_errors.Is(err, errRecordNotFound) {
-			return ips, ttl, err
+		if len(batch) >= migrationBatchSize {
+			c.flush(batch)
+			batch = batch[:0]
+			runtime.Gosched()
 		}
-		if ttl < rTTL {
-			rTTL = ttl
-		}
-		if len(ips) > 0 {
-			allIPs = append(allIPs, ips...)
+	}
+	if len(batch) > 0 {
+		c.flush(batch)
+	}
+
+	c.Lock()
+	c.dirtyips = nil
+	c.Unlock()
+
+	errors.LogDebug(context.Background(), c.name, " cache migration completed")
+}
+
+func (c *CacheController) flush(batch []migrationEntry) {
+	c.Lock()
+	defer c.Unlock()
+
+	for _, dirty := range batch {
+		if cur := c.ips[dirty.key]; cur != nil {
+			merge := &record{}
+			if cur.A == nil {
+				merge.A = dirty.value.A
+			} else {
+				merge.A = cur.A
+			}
+			if cur.AAAA == nil {
+				merge.AAAA = dirty.value.AAAA
+			} else {
+				merge.AAAA = cur.AAAA
+			}
+			c.ips[dirty.key] = merge
 		} else {
-			errs = append(errs, err)
+			c.ips[dirty.key] = dirty.value
+		}
+	}
+}
+
+func (c *CacheController) updateRecord(req *dnsRequest, rep *IPRecord) {
+	rtt := time.Since(req.start)
+
+	switch req.reqType {
+	case dnsmessage.TypeA:
+		c.pub.Publish(req.domain+"4", rep)
+	case dnsmessage.TypeAAAA:
+		c.pub.Publish(req.domain+"6", rep)
+	}
+
+	if c.disableCache {
+		errors.LogInfo(context.Background(), c.name, " got answer: ", req.domain, " ", req.reqType, " -> ", rep.IP, ", rtt: ", rtt)
+		return
+	}
+
+	c.Lock()
+	lockWait := time.Since(req.start) - rtt
+
+	newRec := &record{}
+	oldRec := c.ips[req.domain]
+	var dirtyRec *record
+	if c.dirtyips != nil {
+		dirtyRec = c.dirtyips[req.domain]
+	}
+
+	var pubRecord *IPRecord
+	var pubSuffix string
+
+	switch req.reqType {
+	case dnsmessage.TypeA:
+		newRec.A = rep
+		if oldRec != nil && oldRec.AAAA != nil {
+			newRec.AAAA = oldRec.AAAA
+			pubRecord = oldRec.AAAA
+		} else if dirtyRec != nil && dirtyRec.AAAA != nil {
+			pubRecord = dirtyRec.AAAA
+		}
+		pubSuffix = "6"
+	case dnsmessage.TypeAAAA:
+		newRec.AAAA = rep
+		if oldRec != nil && oldRec.A != nil {
+			newRec.A = oldRec.A
+			pubRecord = oldRec.A
+		} else if dirtyRec != nil && dirtyRec.A != nil {
+			pubRecord = dirtyRec.A
+		}
+		pubSuffix = "4"
+	}
+
+	c.ips[req.domain] = newRec
+	c.Unlock()
+
+	if pubRecord != nil {
+		_, ttl, err := pubRecord.getIPs()
+		if ttl > 0 && !go_errors.Is(err, errRecordNotFound) {
+			c.pub.Publish(req.domain+pubSuffix, pubRecord)
 		}
 	}
 
-	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)
-		}
-	}
+	errors.LogInfo(context.Background(), c.name, " got answer: ", req.domain, " ", req.reqType, " -> ", rep.IP, ", rtt: ", rtt, ", lock: ", lockWait)
 
-	if len(allIPs) > 0 {
-		return allIPs, rTTL, nil
+	if !c.serveStale || c.serveExpiredTTL != 0 {
+		common.Must(c.cacheCleanup.Start())
 	}
-	if go_errors.Is(errs[0], errs[1]) {
-		return nil, rTTL, errs[0]
+}
+
+func (c *CacheController) findRecords(domain string) *record {
+	c.RLock()
+	defer c.RUnlock()
+
+	rec := c.ips[domain]
+	if rec == nil && c.dirtyips != nil {
+		rec = c.dirtyips[domain]
 	}
-	return nil, rTTL, errors.Combine(errs...)
+	return rec
 }
 
 func (c *CacheController) registerSubscribers(domain string, option dns_feature.IPOption) (sub4 *pubsub.Subscriber, sub6 *pubsub.Subscriber) {

app/dns/config.pb.go

@@ -141,10 +141,13 @@ type NameServer struct {
 	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"`
+	DisableCache      *bool                        `protobuf:"varint,11,opt,name=disableCache,proto3,oneof" json:"disableCache,omitempty"`
+	ServeStale        *bool                        `protobuf:"varint,15,opt,name=serveStale,proto3,oneof" json:"serveStale,omitempty"`
+	ServeExpiredTTL   *uint32                      `protobuf:"varint,16,opt,name=serveExpiredTTL,proto3,oneof" json:"serveExpiredTTL,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"`
+	PolicyID          uint32                       `protobuf:"varint,17,opt,name=policyID,proto3" json:"policyID,omitempty"`
 }
 
 func (x *NameServer) Reset() {
@@ -248,12 +251,26 @@ func (x *NameServer) GetTimeoutMs() uint64 {
 }
 
 func (x *NameServer) GetDisableCache() bool {
-	if x != nil {
-		return x.DisableCache
+	if x != nil && x.DisableCache != nil {
+		return *x.DisableCache
 	}
 	return false
 }
 
+func (x *NameServer) GetServeStale() bool {
+	if x != nil && x.ServeStale != nil {
+		return *x.ServeStale
+	}
+	return false
+}
+
+func (x *NameServer) GetServeExpiredTTL() uint32 {
+	if x != nil && x.ServeExpiredTTL != nil {
+		return *x.ServeExpiredTTL
+	}
+	return 0
+}
+
 func (x *NameServer) GetFinalQuery() bool {
 	if x != nil {
 		return x.FinalQuery
@@ -275,6 +292,13 @@ func (x *NameServer) GetActUnprior() bool {
 	return false
 }
 
+func (x *NameServer) GetPolicyID() uint32 {
+	if x != nil {
+		return x.PolicyID
+	}
+	return 0
+}
+
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -291,9 +315,12 @@ type Config struct {
 	Tag string `protobuf:"bytes,6,opt,name=tag,proto3" json:"tag,omitempty"`
 	// DisableCache disables DNS cache
 	DisableCache           bool          `protobuf:"varint,8,opt,name=disableCache,proto3" json:"disableCache,omitempty"`
+	ServeStale             bool          `protobuf:"varint,12,opt,name=serveStale,proto3" json:"serveStale,omitempty"`
+	ServeExpiredTTL        uint32        `protobuf:"varint,13,opt,name=serveExpiredTTL,proto3" json:"serveExpiredTTL,omitempty"`
 	QueryStrategy          QueryStrategy `protobuf:"varint,9,opt,name=query_strategy,json=queryStrategy,proto3,enum=xray.app.dns.QueryStrategy" json:"query_strategy,omitempty"`
 	DisableFallback        bool          `protobuf:"varint,10,opt,name=disableFallback,proto3" json:"disableFallback,omitempty"`
 	DisableFallbackIfMatch bool          `protobuf:"varint,11,opt,name=disableFallbackIfMatch,proto3" json:"disableFallbackIfMatch,omitempty"`
+	EnableParallelQuery    bool          `protobuf:"varint,14,opt,name=enableParallelQuery,proto3" json:"enableParallelQuery,omitempty"`
 }
 
 func (x *Config) Reset() {
@@ -361,6 +388,20 @@ func (x *Config) GetDisableCache() bool {
 	return false
 }
 
+func (x *Config) GetServeStale() bool {
+	if x != nil {
+		return x.ServeStale
+	}
+	return false
+}
+
+func (x *Config) GetServeExpiredTTL() uint32 {
+	if x != nil {
+		return x.ServeExpiredTTL
+	}
+	return 0
+}
+
 func (x *Config) GetQueryStrategy() QueryStrategy {
 	if x != nil {
 		return x.QueryStrategy
@@ -382,6 +423,13 @@ func (x *Config) GetDisableFallbackIfMatch() bool {
 	return false
 }
 
+func (x *Config) GetEnableParallelQuery() bool {
+	if x != nil {
+		return x.EnableParallelQuery
+	}
+	return false
+}
+
 type NameServer_PriorityDomain struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -567,7 +615,7 @@ var file_app_dns_config_proto_rawDesc = []byte{
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@@ -599,74 +647,93 @@ var file_app_dns_config_proto_rawDesc = []byte{
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+	0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d,
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+	0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x44, 0x6e, 0x73, 0x62, 0x06, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x33,
 }
 
 var (
@@ -718,6 +785,7 @@ func file_app_dns_config_proto_init() {
 	if File_app_dns_config_proto != nil {
 		return
 	}
+	file_app_dns_config_proto_msgTypes[0].OneofWrappers = []any{}
 	type x struct{}
 	out := protoimpl.TypeBuilder{
 		File: protoimpl.DescBuilder{

app/dns/config.proto

@@ -31,10 +31,13 @@ message NameServer {
   bool actPrior = 8;
   string tag = 9;
   uint64 timeoutMs = 10;
-  bool disableCache = 11;
+  optional bool disableCache = 11;
+  optional bool serveStale = 15;
+  optional uint32 serveExpiredTTL = 16;
   bool finalQuery = 12;
   repeated xray.app.router.GeoIP unexpected_geoip = 13;
   bool actUnprior = 14;
+  uint32 policyID = 17;
 }
 
 enum DomainMatchingType {
@@ -80,9 +83,13 @@ message Config {
 
   // DisableCache disables DNS cache
   bool disableCache = 8;
+  bool serveStale = 12;
+  uint32 serveExpiredTTL = 13;
 
   QueryStrategy query_strategy = 9;
 
   bool disableFallback = 10;
   bool disableFallbackIfMatch = 11;
+
+  bool enableParallelQuery = 14;
 }

app/dns/dns.go

@@ -5,9 +5,12 @@ import (
 	"context"
 	go_errors "errors"
 	"fmt"
+	"os"
+	"runtime"
 	"sort"
 	"strings"
 	"sync"
+	"time"
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
@@ -22,6 +25,7 @@ type DNS struct {
 	sync.Mutex
 	disableFallback        bool
 	disableFallbackIfMatch bool
+	enableParallelQuery    bool
 	ipOption               *dns.IPOption
 	hosts                  *StaticHosts
 	clients                []*Client
@@ -102,13 +106,12 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 
 	for _, ns := range config.NameServer {
 		clientIdx := len(clients)
-		updateDomain := func(domainRule strmatcher.Matcher, originalRuleIdx int, matcherInfos []*DomainMatcherInfo) error {
+		updateDomain := func(domainRule strmatcher.Matcher, originalRuleIdx int, matcherInfos []*DomainMatcherInfo) {
 			midx := domainMatcher.Add(domainRule)
 			matcherInfos[midx] = &DomainMatcherInfo{
 				clientIdx:     uint16(clientIdx),
 				domainRuleIdx: uint16(originalRuleIdx),
 			}
-			return nil
 		}
 
 		myClientIP := clientIP
@@ -117,7 +120,20 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 			myClientIP = net.IP(ns.ClientIp)
 		}
 
-		disableCache := config.DisableCache || ns.DisableCache
+		disableCache := config.DisableCache
+		if ns.DisableCache != nil {
+			disableCache = *ns.DisableCache
+		}
+
+		serveStale := config.ServeStale
+		if ns.ServeStale != nil {
+			serveStale = *ns.ServeStale
+		}
+
+		serveExpiredTTL := config.ServeExpiredTTL
+		if ns.ServeExpiredTTL != nil {
+			serveExpiredTTL = *ns.ServeExpiredTTL
+		}
 
 		var tag = defaultTag
 		if len(ns.Tag) > 0 {
@@ -128,7 +144,7 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 			return nil, errors.New("no QueryStrategy available for ", ns.Address)
 		}
 
-		client, err := NewClient(ctx, ns, myClientIP, disableCache, tag, clientIPOption, &matcherInfos, updateDomain)
+		client, err := NewClient(ctx, ns, myClientIP, disableCache, serveStale, serveExpiredTTL, tag, clientIPOption, &matcherInfos, updateDomain)
 		if err != nil {
 			return nil, errors.New("failed to create client").Base(err)
 		}
@@ -149,6 +165,7 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 		matcherInfos:           matcherInfos,
 		disableFallback:        config.DisableFallback,
 		disableFallbackIfMatch: config.DisableFallbackIfMatch,
+		enableParallelQuery:    config.EnableParallelQuery,
 		checkSystem:            checkSystem,
 	}, nil
 }
@@ -191,7 +208,7 @@ func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, uint32, er
 	}
 
 	if s.checkSystem {
-		supportIPv4, supportIPv6 := checkSystemNetwork()
+		supportIPv4, supportIPv6 := checkRoutes()
 		option.IPv4Enable = option.IPv4Enable && supportIPv4
 		option.IPv6Enable = option.IPv6Enable && supportIPv6
 	} else {
@@ -227,45 +244,11 @@ func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, uint32, er
 	}
 
 	// Name servers lookup
-	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, ttl, err := client.QueryIP(s.ctx, domain, option)
-
-		if len(ips) > 0 {
-			if ttl == 0 {
-				ttl = 1
-			}
-			return ips, ttl, nil
-		}
-
-		errors.LogInfoInner(s.ctx, err, "failed to lookup ip for domain ", domain, " at server ", client.Name())
-		if err == nil {
-			err = dns.ErrEmptyResponse
-		}
-		errs = append(errs, err)
-
-		if client.IsFinalQuery() {
-			break
-		}
+	if s.enableParallelQuery {
+		return s.parallelQuery(domain, option)
+	} else {
+		return s.serialQuery(domain, option)
 	}
-
-	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)
-	}
-	return nil, 0, dns.ErrEmptyResponse
 }
 
 func (s *DNS) sortClients(domain string) []*Client {
@@ -292,6 +275,9 @@ func (s *DNS) sortClients(domain string) []*Client {
 		clients = append(clients, client)
 		clientNames = append(clientNames, client.Name())
 		hasMatch = true
+		if client.finalQuery {
+			return clients
+		}
 	}
 
 	if !(s.disableFallback || s.disableFallbackIfMatch && hasMatch) {
@@ -303,6 +289,9 @@ func (s *DNS) sortClients(domain string) []*Client {
 			clientUsed[idx] = true
 			clients = append(clients, client)
 			clientNames = append(clientNames, client.Name())
+			if client.finalQuery {
+				return clients
+			}
 		}
 	}
 
@@ -314,35 +303,280 @@ func (s *DNS) sortClients(domain string) []*Client {
 	}
 
 	if len(clients) == 0 {
-		clients = append(clients, s.clients[0])
-		clientNames = append(clientNames, s.clients[0].Name())
-		errors.LogDebug(s.ctx, "domain ", domain, " will use the first DNS: ", clientNames)
+		if len(s.clients) > 0 {
+			clients = append(clients, s.clients[0])
+			clientNames = append(clientNames, s.clients[0].Name())
+			errors.LogWarning(s.ctx, "domain ", domain, " will use the first DNS: ", clientNames)
+		} else {
+			errors.LogError(s.ctx, "no DNS clients available for domain ", domain, " and no default clients configured")
+		}
 	}
 
 	return clients
 }
 
+func mergeQueryErrors(domain string, errs []error) error {
+	if len(errs) == 0 {
+		return dns.ErrEmptyResponse
+	}
+
+	var noRNF error
+	for _, err := range errs {
+		if go_errors.Is(err, errRecordNotFound) {
+			continue // server no response, ignore
+		} else if noRNF == nil {
+			noRNF = err
+		} else if !go_errors.Is(err, noRNF) {
+			return errors.New("returning nil for domain ", domain).Base(errors.Combine(errs...))
+		}
+	}
+	if go_errors.Is(noRNF, dns.ErrEmptyResponse) {
+		return dns.ErrEmptyResponse
+	}
+	if noRNF == nil {
+		noRNF = errRecordNotFound
+	}
+	return errors.New("returning nil for domain ", domain).Base(noRNF)
+}
+
+func (s *DNS) serialQuery(domain string, option dns.IPOption) ([]net.IP, uint32, error) {
+	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, ttl, err := client.QueryIP(s.ctx, domain, option)
+
+		if len(ips) > 0 {
+			return ips, ttl, nil
+		}
+
+		errors.LogInfoInner(s.ctx, err, "failed to lookup ip for domain ", domain, " at server ", client.Name(), " in serial query mode")
+		if err == nil {
+			err = dns.ErrEmptyResponse
+		}
+		errs = append(errs, err)
+	}
+	return nil, 0, mergeQueryErrors(domain, errs)
+}
+
+func (s *DNS) parallelQuery(domain string, option dns.IPOption) ([]net.IP, uint32, error) {
+	var errs []error
+	clients := s.sortClients(domain)
+
+	resultsChan := asyncQueryAll(domain, option, clients, s.ctx)
+
+	groups, groupOf := makeGroups( /*s.ctx,*/ clients)
+	results := make([]*queryResult, len(clients))
+	pending := make([]int, len(groups))
+	for gi, g := range groups {
+		pending[gi] = g.end - g.start + 1
+	}
+
+	nextGroup := 0
+	for range clients {
+		result := <-resultsChan
+		results[result.index] = &result
+
+		gi := groupOf[result.index]
+		pending[gi]--
+
+		for nextGroup < len(groups) {
+			g := groups[nextGroup]
+
+			// group race, minimum rtt -> return
+			for j := g.start; j <= g.end; j++ {
+				r := results[j]
+				if r != nil && r.err == nil && len(r.ips) > 0 {
+					return r.ips, r.ttl, nil
+				}
+			}
+
+			// current group is incomplete and no one success -> continue pending
+			if pending[nextGroup] > 0 {
+				break
+			}
+
+			// all failed -> log and continue next group
+			for j := g.start; j <= g.end; j++ {
+				r := results[j]
+				e := r.err
+				if e == nil {
+					e = dns.ErrEmptyResponse
+				}
+				errors.LogInfoInner(s.ctx, e, "failed to lookup ip for domain ", domain, " at server ", clients[j].Name(), " in parallel query mode")
+				errs = append(errs, e)
+			}
+			nextGroup++
+		}
+	}
+
+	return nil, 0, mergeQueryErrors(domain, errs)
+}
+
+type queryResult struct {
+	ips   []net.IP
+	ttl   uint32
+	err   error
+	index int
+}
+
+func asyncQueryAll(domain string, option dns.IPOption, clients []*Client, ctx context.Context) chan queryResult {
+	if len(clients) == 0 {
+		ch := make(chan queryResult)
+		close(ch)
+		return ch
+	}
+
+	ch := make(chan queryResult, len(clients))
+	for i, client := range clients {
+		if !option.FakeEnable && strings.EqualFold(client.Name(), "FakeDNS") {
+			errors.LogDebug(ctx, "skip DNS resolution for domain ", domain, " at server ", client.Name())
+			ch <- queryResult{err: dns.ErrEmptyResponse, index: i}
+			continue
+		}
+
+		go func(i int, c *Client) {
+			qctx := ctx
+			if !c.server.IsDisableCache() {
+				nctx, cancel := context.WithTimeout(context.WithoutCancel(ctx), c.timeoutMs*2)
+				qctx = nctx
+				defer cancel()
+			}
+			ips, ttl, err := c.QueryIP(qctx, domain, option)
+			ch <- queryResult{ips: ips, ttl: ttl, err: err, index: i}
+		}(i, client)
+	}
+	return ch
+}
+
+type group struct{ start, end int }
+
+// merge only adjacent and rule-equivalent Client into a single group
+func makeGroups( /*ctx context.Context,*/ clients []*Client) ([]group, []int) {
+	n := len(clients)
+	if n == 0 {
+		return nil, nil
+	}
+	groups := make([]group, 0, n)
+	groupOf := make([]int, n)
+
+	s, e := 0, 0
+	for i := 1; i < n; i++ {
+		if clients[i-1].policyID == clients[i].policyID {
+			e = i
+		} else {
+			for k := s; k <= e; k++ {
+				groupOf[k] = len(groups)
+			}
+			groups = append(groups, group{start: s, end: e})
+			s, e = i, i
+		}
+	}
+	for k := s; k <= e; k++ {
+		groupOf[k] = len(groups)
+	}
+	groups = append(groups, group{start: s, end: e})
+
+	// var b strings.Builder
+	// b.WriteString("dns grouping: total clients=")
+	// b.WriteString(strconv.Itoa(n))
+	// b.WriteString(", groups=")
+	// b.WriteString(strconv.Itoa(len(groups)))
+
+	// for gi, g := range groups {
+	// 	b.WriteString("\n  [")
+	// 	b.WriteString(strconv.Itoa(g.start))
+	// 	b.WriteString("..")
+	// 	b.WriteString(strconv.Itoa(g.end))
+	// 	b.WriteString("] gid=")
+	// 	b.WriteString(strconv.Itoa(gi))
+	// 	b.WriteString(" pid=")
+	// 	b.WriteString(strconv.FormatUint(uint64(clients[g.start].policyID), 10))
+	// 	b.WriteString(" members: ")
+
+	// 	for i := g.start; i <= g.end; i++ {
+	// 		if i > g.start {
+	// 			b.WriteString(", ")
+	// 		}
+	// 		b.WriteString(strconv.Itoa(i))
+	// 		b.WriteByte(':')
+	// 		b.WriteString(clients[i].Name())
+	// 	}
+	// }
+	// errors.LogDebug(ctx, b.String())
+
+	return groups, groupOf
+}
+
 func init() {
 	common.Must(common.RegisterConfig((*Config)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
 		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()
+func probeRoutes() (ipv4 bool, ipv6 bool) {
+	if conn, err := net.Dial("udp4", "192.33.4.12:53"); err == nil {
+		ipv4 = true
+		conn.Close()
 	}
-
-	conn6, err6 := net.Dial("udp6", "[2001:4860:4860::8888]:53")
-	if err6 != nil {
-		supportIPv6 = false
-	} else {
-		supportIPv6 = true
-		conn6.Close()
+	if conn, err := net.Dial("udp6", "[2001:500:2::c]:53"); err == nil {
+		ipv6 = true
+		conn.Close()
 	}
 	return
 }
+
+var routeCache struct {
+	sync.Once
+	sync.RWMutex
+	expire     time.Time
+	ipv4, ipv6 bool
+}
+
+func checkRoutes() (bool, bool) {
+	if !isGUIPlatform {
+		routeCache.Once.Do(func() {
+			routeCache.ipv4, routeCache.ipv6 = probeRoutes()
+		})
+		return routeCache.ipv4, routeCache.ipv6
+	}
+
+	routeCache.RWMutex.RLock()
+	now := time.Now()
+	if routeCache.expire.After(now) {
+		routeCache.RWMutex.RUnlock()
+		return routeCache.ipv4, routeCache.ipv6
+	}
+	routeCache.RWMutex.RUnlock()
+
+	routeCache.RWMutex.Lock()
+	defer routeCache.RWMutex.Unlock()
+
+	now = time.Now()
+	if routeCache.expire.After(now) { // double-check
+		return routeCache.ipv4, routeCache.ipv6
+	}
+	routeCache.ipv4, routeCache.ipv6 = probeRoutes()    // ~2ms
+	routeCache.expire = now.Add(100 * time.Millisecond) // ttl
+	return routeCache.ipv4, routeCache.ipv6
+}
+
+var isGUIPlatform = detectGUIPlatform()
+
+func detectGUIPlatform() bool {
+	switch runtime.GOOS {
+	case "android", "ios", "windows", "darwin":
+		return true
+	case "linux", "freebsd", "openbsd":
+		if t := os.Getenv("XDG_SESSION_TYPE"); t == "wayland" || t == "x11" {
+			return true
+		}
+		if os.Getenv("DISPLAY") != "" || os.Getenv("WAYLAND_DISPLAY") != "" {
+			return true
+		}
+	}
+	return false
+}

app/dns/dnscommon.go

@@ -3,6 +3,7 @@ package dns
 import (
 	"context"
 	"encoding/binary"
+	"math"
 	"strings"
 	"time"
 
@@ -13,10 +14,12 @@ import (
 	"github.com/xtls/xray-core/common/session"
 	"github.com/xtls/xray-core/core"
 	dns_feature "github.com/xtls/xray-core/features/dns"
+
 	"golang.org/x/net/dns/dnsmessage"
 )
 
 // Fqdn normalizes domain make sure it ends with '.'
+// case-sensitive
 func Fqdn(domain string) string {
 	if len(domain) > 0 && strings.HasSuffix(domain, ".") {
 		return domain
@@ -38,19 +41,14 @@ type IPRecord struct {
 	RawHeader *dnsmessage.Header
 }
 
-func (r *IPRecord) getIPs() ([]net.IP, uint32, error) {
+func (r *IPRecord) getIPs() ([]net.IP, int32, 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
-	}
+	untilExpire := time.Until(r.Expire).Seconds()
+	ttl := int32(math.Ceil(untilExpire))
+
 	if r.RCode != dnsmessage.RCodeSuccess {
 		return nil, ttl, dns_feature.RCodeError(r.RCode)
 	}

app/dns/dnscommon_test.go

@@ -39,8 +39,8 @@ func Test_parseResponse(t *testing.T) {
 		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")),
+		common.Must2(dns.NewRR("google.com. IN AAAA 2001:4860:4860::8888")),
+		common.Must2(dns.NewRR("google.com. IN AAAA 2001:4860:4860::8844")),
 	)
 	p = append(p, common.Must2(ans.Pack()))
 
@@ -72,7 +72,7 @@ func Test_parseResponse(t *testing.T) {
 		},
 		{
 			"aaaa record",
-			&IPRecord{2, []net.IP{net.ParseIP("2001::123:8888"), net.ParseIP("2001::123:8844")}, time.Time{}, dnsmessage.RCodeSuccess, nil},
+			&IPRecord{2, []net.IP{net.ParseIP("2001:4860:4860::8888"), net.ParseIP("2001:4860:4860::8844")}, time.Time{}, dnsmessage.RCodeSuccess, nil},
 			false,
 		},
 	}

app/dns/fakedns/fake.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"math"
 	"math/big"
-	gonet "net"
 	"sync"
 	"time"
 
@@ -17,7 +16,7 @@ import (
 
 type Holder struct {
 	domainToIP cache.Lru
-	ipRange    *gonet.IPNet
+	ipRange    *net.IPNet
 	mu         *sync.Mutex
 
 	config *FakeDnsPool
@@ -79,10 +78,10 @@ func (fkdns *Holder) initializeFromConfig() error {
 }
 
 func (fkdns *Holder) initialize(ipPoolCidr string, lruSize int) error {
-	var ipRange *gonet.IPNet
+	var ipRange *net.IPNet
 	var err error
 
-	if _, ipRange, err = gonet.ParseCIDR(ipPoolCidr); err != nil {
+	if _, ipRange, err = net.ParseCIDR(ipPoolCidr); err != nil {
 		return errors.New("Unable to parse CIDR for Fake DNS IP assignment").Base(err).AtError()
 	}
 

app/dns/fakedns/fakedns_test.go

@@ -1,7 +1,6 @@
 package fakedns
 
 import (
-	gonet "net"
 	"strconv"
 	"testing"
 
@@ -155,7 +154,7 @@ func TestFakeDNSMulti(t *testing.T) {
 			assert.True(t, inPool)
 		})
 		t.Run("ipv6", func(t *testing.T) {
-			ip, err := gonet.ResolveIPAddr("ip", "fddd:c5b4:ff5f:f4f0::5")
+			ip, err := net.ResolveIPAddr("ip", "fddd:c5b4:ff5f:f4f0::5")
 			assert.Nil(t, err)
 			inPool := fakeMulti.IsIPInIPPool(net.IPAddress(ip.IP))
 			assert.True(t, inPool)
@@ -165,7 +164,7 @@ func TestFakeDNSMulti(t *testing.T) {
 			assert.False(t, inPool)
 		})
 		t.Run("ipv6_inverse", func(t *testing.T) {
-			ip, err := gonet.ResolveIPAddr("ip", "fcdd:c5b4:ff5f:f4f0::5")
+			ip, err := net.ResolveIPAddr("ip", "fcdd:c5b4:ff5f:f4f0::5")
 			assert.Nil(t, err)
 			inPool := fakeMulti.IsIPInIPPool(net.IPAddress(ip.IP))
 			assert.False(t, inPool)

app/dns/hosts.go

@@ -2,6 +2,7 @@ package dns
 
 import (
 	"context"
+	"runtime"
 	"strconv"
 
 	"github.com/xtls/xray-core/common/errors"
@@ -24,10 +25,13 @@ func NewStaticHosts(hosts []*Config_HostMapping) (*StaticHosts, error) {
 		matchers: g,
 	}
 
-	for _, mapping := range hosts {
+	defer runtime.GC()
+	for i, mapping := range hosts {
+		hosts[i] = nil
 		matcher, err := toStrMatcher(mapping.Type, mapping.Domain)
 		if err != nil {
-			return nil, errors.New("failed to create domain matcher").Base(err)
+			errors.LogErrorInner(context.Background(), err, "failed to create domain matcher, ignore domain rule [type: ", mapping.Type, ", domain: ", mapping.Domain, "]")
+			continue
 		}
 		id := g.Add(matcher)
 		ips := make([]net.Address, 0, len(mapping.Ip)+1)
@@ -46,10 +50,14 @@ func NewStaticHosts(hosts []*Config_HostMapping) (*StaticHosts, error) {
 			for _, ip := range mapping.Ip {
 				addr := net.IPAddress(ip)
 				if addr == nil {
-					return nil, errors.New("invalid IP address in static hosts: ", ip).AtWarning()
+					errors.LogError(context.Background(), "invalid IP address in static hosts: ", ip, ", ignore this ip for rule [type: ", mapping.Type, ", domain: ", mapping.Domain, "]")
+					continue
 				}
 				ips = append(ips, addr)
 			}
+			if len(ips) == 0 {
+				continue
+			}
 		}
 
 		sh.ips[id] = ips

app/dns/nameserver.go

@@ -3,6 +3,7 @@ package dns
 import (
 	"context"
 	"net/url"
+	"runtime"
 	"strings"
 	"time"
 
@@ -20,6 +21,9 @@ import (
 type Server interface {
 	// Name of the Client.
 	Name() string
+
+	IsDisableCache() bool
+
 	// QueryIP sends IP queries to its configured server.
 	QueryIP(ctx context.Context, domain string, option dns.IPOption) ([]net.IP, uint32, error)
 }
@@ -29,8 +33,8 @@ type Client struct {
 	server        Server
 	skipFallback  bool
 	domains       []string
-	expectedIPs   []*router.GeoIPMatcher
-	unexpectedIPs []*router.GeoIPMatcher
+	expectedIPs   router.GeoIPMatcher
+	unexpectedIPs router.GeoIPMatcher
 	actPrior      bool
 	actUnprior    bool
 	tag           string
@@ -38,10 +42,11 @@ type Client struct {
 	finalQuery    bool
 	ipOption      *dns.IPOption
 	checkSystem   bool
+	policyID      uint32
 }
 
 // NewServer creates a name server object according to the network destination url.
-func NewServer(ctx context.Context, dest net.Destination, dispatcher routing.Dispatcher, disableCache bool, clientIP net.IP) (Server, error) {
+func NewServer(ctx context.Context, dest net.Destination, dispatcher routing.Dispatcher, disableCache bool, serveStale bool, serveExpiredTTL uint32, clientIP net.IP) (Server, error) {
 	if address := dest.Address; address.Family().IsDomain() {
 		u, err := url.Parse(address.Domain())
 		if err != nil {
@@ -51,19 +56,19 @@ func NewServer(ctx context.Context, dest net.Destination, dispatcher routing.Dis
 		case strings.EqualFold(u.String(), "localhost"):
 			return NewLocalNameServer(), nil
 		case strings.EqualFold(u.Scheme, "https"): // DNS-over-HTTPS Remote mode
-			return NewDoHNameServer(u, dispatcher, false, disableCache, clientIP), nil
+			return NewDoHNameServer(u, dispatcher, false, disableCache, serveStale, serveExpiredTTL, clientIP), nil
 		case strings.EqualFold(u.Scheme, "h2c"): // DNS-over-HTTPS h2c Remote mode
-			return NewDoHNameServer(u, dispatcher, true, disableCache, clientIP), nil
+			return NewDoHNameServer(u, dispatcher, true, disableCache, serveStale, serveExpiredTTL, clientIP), nil
 		case strings.EqualFold(u.Scheme, "https+local"): // DNS-over-HTTPS Local mode
-			return NewDoHNameServer(u, nil, false, disableCache, clientIP), nil
+			return NewDoHNameServer(u, nil, false, disableCache, serveStale, serveExpiredTTL, clientIP), nil
 		case strings.EqualFold(u.Scheme, "h2c+local"): // DNS-over-HTTPS h2c Local mode
-			return NewDoHNameServer(u, nil, true, disableCache, clientIP), nil
+			return NewDoHNameServer(u, nil, true, disableCache, serveStale, serveExpiredTTL, clientIP), nil
 		case strings.EqualFold(u.Scheme, "quic+local"): // DNS-over-QUIC Local mode
-			return NewQUICNameServer(u, disableCache, clientIP)
+			return NewQUICNameServer(u, disableCache, serveStale, serveExpiredTTL, clientIP)
 		case strings.EqualFold(u.Scheme, "tcp"): // DNS-over-TCP Remote mode
-			return NewTCPNameServer(u, dispatcher, disableCache, clientIP)
+			return NewTCPNameServer(u, dispatcher, disableCache, serveStale, serveExpiredTTL, clientIP)
 		case strings.EqualFold(u.Scheme, "tcp+local"): // DNS-over-TCP Local mode
-			return NewTCPLocalNameServer(u, disableCache, clientIP)
+			return NewTCPLocalNameServer(u, disableCache, serveStale, serveExpiredTTL, clientIP)
 		case strings.EqualFold(u.String(), "fakedns"):
 			var fd dns.FakeDNSEngine
 			err = core.RequireFeatures(ctx, func(fdns dns.FakeDNSEngine) {
@@ -79,7 +84,7 @@ 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, disableCache, clientIP), nil
+		return NewClassicNameServer(dest, dispatcher, disableCache, serveStale, serveExpiredTTL, clientIP), nil
 	}
 	return nil, errors.New("No available name server could be created from ", dest).AtWarning()
 }
@@ -89,17 +94,17 @@ func NewClient(
 	ctx context.Context,
 	ns *NameServer,
 	clientIP net.IP,
-	disableCache bool,
+	disableCache bool, serveStale bool, serveExpiredTTL uint32,
 	tag string,
 	ipOption dns.IPOption,
 	matcherInfos *[]*DomainMatcherInfo,
-	updateDomainRule func(strmatcher.Matcher, int, []*DomainMatcherInfo) error,
+	updateDomainRule func(strmatcher.Matcher, int, []*DomainMatcherInfo),
 ) (*Client, error) {
 	client := &Client{}
 
 	err := core.RequireFeatures(ctx, func(dispatcher routing.Dispatcher) error {
 		// Create a new server for each client for now
-		server, err := NewServer(ctx, ns.Address.AsDestination(), dispatcher, disableCache, clientIP)
+		server, err := NewServer(ctx, ns.Address.AsDestination(), dispatcher, disableCache, serveStale, serveExpiredTTL, clientIP)
 		if err != nil {
 			return errors.New("failed to create nameserver").Base(err).AtWarning()
 		}
@@ -127,10 +132,12 @@ func NewClient(
 		var rules []string
 		ruleCurr := 0
 		ruleIter := 0
-		for _, domain := range ns.PrioritizedDomain {
+		for i, domain := range ns.PrioritizedDomain {
+			ns.PrioritizedDomain[i] = nil
 			domainRule, err := toStrMatcher(domain.Type, domain.Domain)
 			if err != nil {
-				return errors.New("failed to create prioritized domain").Base(err).AtWarning()
+				errors.LogErrorInner(ctx, err, "failed to create domain matcher, ignore domain rule [type: ", domain.Type, ", domain: ", domain.Domain, "]")
+				domainRule, _ = toStrMatcher(DomainMatchingType_Full, "hack.fix.index.for.illegal.domain.rule")
 			}
 			originalRuleIdx := ruleCurr
 			if ruleCurr < len(ns.OriginalRules) {
@@ -147,30 +154,31 @@ func NewClient(
 				rules = append(rules, domainRule.String())
 				ruleCurr++
 			}
-			err = updateDomainRule(domainRule, originalRuleIdx, *matcherInfos)
-			if err != nil {
-				return errors.New("failed to create prioritized domain").Base(err).AtWarning()
-			}
+			updateDomainRule(domainRule, originalRuleIdx, *matcherInfos)
 		}
+		ns.PrioritizedDomain = nil
+		runtime.GC()
 
 		// Establish expected IPs
-		var expectedMatchers []*router.GeoIPMatcher
-		for _, geoip := range ns.ExpectedGeoip {
-			matcher, err := router.GlobalGeoIPContainer.Add(geoip)
+		var expectedMatcher router.GeoIPMatcher
+		if len(ns.ExpectedGeoip) > 0 {
+			expectedMatcher, err = router.BuildOptimizedGeoIPMatcher(ns.ExpectedGeoip...)
 			if err != nil {
 				return errors.New("failed to create expected ip matcher").Base(err).AtWarning()
 			}
-			expectedMatchers = append(expectedMatchers, matcher)
+			ns.ExpectedGeoip = nil
+			runtime.GC()
 		}
 
 		// Establish unexpected IPs
-		var unexpectedMatchers []*router.GeoIPMatcher
-		for _, geoip := range ns.UnexpectedGeoip {
-			matcher, err := router.GlobalGeoIPContainer.Add(geoip)
+		var unexpectedMatcher router.GeoIPMatcher
+		if len(ns.UnexpectedGeoip) > 0 {
+			unexpectedMatcher, err = router.BuildOptimizedGeoIPMatcher(ns.UnexpectedGeoip...)
 			if err != nil {
 				return errors.New("failed to create unexpected ip matcher").Base(err).AtWarning()
 			}
-			unexpectedMatchers = append(unexpectedMatchers, matcher)
+			ns.UnexpectedGeoip = nil
+			runtime.GC()
 		}
 
 		if len(clientIP) > 0 {
@@ -192,8 +200,8 @@ func NewClient(
 		client.server = server
 		client.skipFallback = ns.SkipFallback
 		client.domains = rules
-		client.expectedIPs = expectedMatchers
-		client.unexpectedIPs = unexpectedMatchers
+		client.expectedIPs = expectedMatcher
+		client.unexpectedIPs = unexpectedMatcher
 		client.actPrior = ns.ActPrior
 		client.actUnprior = ns.ActUnprior
 		client.tag = tag
@@ -201,6 +209,7 @@ func NewClient(
 		client.finalQuery = ns.FinalQuery
 		client.ipOption = &ipOption
 		client.checkSystem = checkSystem
+		client.policyID = ns.PolicyID
 		return nil
 	})
 	return client, err
@@ -211,14 +220,10 @@ 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) ([]net.IP, uint32, error) {
 	if c.checkSystem {
-		supportIPv4, supportIPv6 := checkSystemNetwork()
+		supportIPv4, supportIPv6 := checkRoutes()
 		option.IPv4Enable = option.IPv4Enable && supportIPv4
 		option.IPv6Enable = option.IPv6Enable && supportIPv6
 	} else {
@@ -243,32 +248,32 @@ func (c *Client) QueryIP(ctx context.Context, domain string, option dns.IPOption
 		return nil, 0, dns.ErrEmptyResponse
 	}
 
-	if len(c.expectedIPs) > 0 && !c.actPrior {
-		ips = router.MatchIPs(c.expectedIPs, ips, false)
+	if c.expectedIPs != nil && !c.actPrior {
+		ips, _ = c.expectedIPs.FilterIPs(ips)
 		errors.LogDebug(context.Background(), "domain ", domain, " expectedIPs ", ips, " matched at server ", c.Name())
 		if len(ips) == 0 {
 			return nil, 0, dns.ErrEmptyResponse
 		}
 	}
 
-	if len(c.unexpectedIPs) > 0 && !c.actUnprior {
-		ips = router.MatchIPs(c.unexpectedIPs, ips, true)
+	if c.unexpectedIPs != nil && !c.actUnprior {
+		_, ips = c.unexpectedIPs.FilterIPs(ips)
 		errors.LogDebug(context.Background(), "domain ", domain, " unexpectedIPs ", ips, " matched at server ", c.Name())
 		if len(ips) == 0 {
 			return nil, 0, dns.ErrEmptyResponse
 		}
 	}
 
-	if len(c.expectedIPs) > 0 && c.actPrior {
-		ipsNew := router.MatchIPs(c.expectedIPs, ips, false)
+	if c.expectedIPs != nil && c.actPrior {
+		ipsNew, _ := c.expectedIPs.FilterIPs(ips)
 		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 c.unexpectedIPs != nil && c.actUnprior {
+		_, ipsNew := c.unexpectedIPs.FilterIPs(ips)
 		if len(ipsNew) > 0 {
 			ips = ipsNew
 			errors.LogDebug(context.Background(), "domain ", domain, " unpriorIPs ", ips, " matched at server ", c.Name())

app/dns/nameserver_cached.go

@@ -0,0 +1,173 @@
+package dns
+
+import (
+	"context"
+	go_errors "errors"
+	"time"
+
+	"github.com/xtls/xray-core/common/errors"
+	"github.com/xtls/xray-core/common/log"
+	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/signal/pubsub"
+	"github.com/xtls/xray-core/features/dns"
+)
+
+type CachedNameserver interface {
+	getCacheController() *CacheController
+
+	sendQuery(ctx context.Context, noResponseErrCh chan<- error, fqdn string, option dns.IPOption)
+}
+
+// queryIP is called from dns.Server->queryIPTimeout
+func queryIP(ctx context.Context, s CachedNameserver, domain string, option dns.IPOption) ([]net.IP, uint32, error) {
+	fqdn := Fqdn(domain)
+
+	cache := s.getCacheController()
+	if !cache.disableCache {
+		if rec := cache.findRecords(fqdn); rec != nil {
+			ips, ttl, err := merge(option, rec.A, rec.AAAA)
+			if !go_errors.Is(err, errRecordNotFound) {
+				if ttl > 0 {
+					errors.LogDebugInner(ctx, err, cache.name, " cache HIT ", fqdn, " -> ", ips)
+					log.Record(&log.DNSLog{Server: cache.name, Domain: fqdn, Result: ips, Status: log.DNSCacheHit, Elapsed: 0, Error: err})
+					return ips, uint32(ttl), err
+				}
+				if cache.serveStale && (cache.serveExpiredTTL == 0 || cache.serveExpiredTTL < ttl) {
+					errors.LogDebugInner(ctx, err, cache.name, " cache OPTIMISTE ", fqdn, " -> ", ips)
+					log.Record(&log.DNSLog{Server: cache.name, Domain: fqdn, Result: ips, Status: log.DNSCacheOptimiste, Elapsed: 0, Error: err})
+					go pull(ctx, s, fqdn, option)
+					return ips, 1, err
+				}
+			}
+		}
+	} else {
+		errors.LogDebug(ctx, "DNS cache is disabled. Querying IP for ", fqdn, " at ", cache.name)
+	}
+
+	return fetch(ctx, s, fqdn, option)
+}
+
+func pull(ctx context.Context, s CachedNameserver, fqdn string, option dns.IPOption) {
+	nctx, cancel := context.WithTimeout(context.WithoutCancel(ctx), 8*time.Second)
+	defer cancel()
+
+	fetch(nctx, s, fqdn, option)
+}
+
+func fetch(ctx context.Context, s CachedNameserver, fqdn string, option dns.IPOption) ([]net.IP, uint32, error) {
+	key := fqdn
+	switch {
+	case option.IPv4Enable && option.IPv6Enable:
+		key = key + "46"
+	case option.IPv4Enable:
+		key = key + "4"
+	case option.IPv6Enable:
+		key = key + "6"
+	}
+
+	v, _, _ := s.getCacheController().requestGroup.Do(key, func() (any, error) {
+		return doFetch(ctx, s, fqdn, option), nil
+	})
+	ret := v.(result)
+
+	return ret.ips, ret.ttl, ret.error
+}
+
+type result struct {
+	ips []net.IP
+	ttl uint32
+	error
+}
+
+func doFetch(ctx context.Context, s CachedNameserver, fqdn string, option dns.IPOption) result {
+	sub4, sub6 := s.getCacheController().registerSubscribers(fqdn, option)
+	defer closeSubscribers(sub4, sub6)
+
+	noResponseErrCh := make(chan error, 2)
+	onEvent := func(sub *pubsub.Subscriber) (*IPRecord, error) {
+		if sub == nil {
+			return nil, nil
+		}
+		select {
+		case <-ctx.Done():
+			return nil, ctx.Err()
+		case err := <-noResponseErrCh:
+			return nil, err
+		case msg := <-sub.Wait():
+			sub.Close()
+			return msg.(*IPRecord), nil // should panic
+		}
+	}
+
+	start := time.Now()
+	s.sendQuery(ctx, noResponseErrCh, fqdn, option)
+
+	rec4, err4 := onEvent(sub4)
+	rec6, err6 := onEvent(sub6)
+
+	var errs []error
+	if err4 != nil {
+		errs = append(errs, err4)
+	}
+	if err6 != nil {
+		errs = append(errs, err6)
+	}
+
+	ips, ttl, err := merge(option, rec4, rec6, errs...)
+	var rTTL uint32
+	if ttl > 0 {
+		rTTL = uint32(ttl)
+	} else if ttl == 0 && go_errors.Is(err, errRecordNotFound) {
+		rTTL = 0
+	} else { // edge case: where a fast rep's ttl expires during the rtt of a slower, parallel query
+		rTTL = 1
+	}
+
+	log.Record(&log.DNSLog{Server: s.getCacheController().name, Domain: fqdn, Result: ips, Status: log.DNSQueried, Elapsed: time.Since(start), Error: err})
+	return result{ips, rTTL, err}
+}
+
+func merge(option dns.IPOption, rec4 *IPRecord, rec6 *IPRecord, errs ...error) ([]net.IP, int32, error) {
+	var allIPs []net.IP
+	var rTTL int32 = dns.DefaultTTL
+
+	mergeReq := option.IPv4Enable && option.IPv6Enable
+
+	if option.IPv4Enable {
+		ips, ttl, err := rec4.getIPs() // it's safe
+		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 := rec6.getIPs() // it's safe
+		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 len(errs) == 2 && go_errors.Is(errs[0], errs[1]) {
+		return nil, rTTL, errs[0]
+	}
+	return nil, rTTL, errors.Combine(errs...)
+}

app/dns/nameserver_doh.go

@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"context"
 	"crypto/tls"
-	go_errors "errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -38,7 +37,7 @@ type DoHNameServer struct {
 }
 
 // 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 {
+func NewDoHNameServer(url *url.URL, dispatcher routing.Dispatcher, h2c bool, disableCache bool, serveStale bool, serveExpiredTTL uint32, clientIP net.IP) *DoHNameServer {
 	url.Scheme = "https"
 	mode := "DOH"
 	if dispatcher == nil {
@@ -46,7 +45,7 @@ func NewDoHNameServer(url *url.URL, dispatcher routing.Dispatcher, h2c bool, dis
 	}
 	errors.LogInfo(context.Background(), "DNS: created ", mode, " client for ", url.String(), ", with h2c ", h2c)
 	s := &DoHNameServer{
-		cacheController: NewCacheController(mode+"//"+url.Host, disableCache),
+		cacheController: NewCacheController(mode+"//"+url.Host, disableCache, serveStale, serveExpiredTTL),
 		dohURL:          url.String(),
 		clientIP:        clientIP,
 	}
@@ -117,22 +116,35 @@ func (s *DoHNameServer) Name() string {
 	return s.cacheController.name
 }
 
+// IsDisableCache implements Server.
+func (s *DoHNameServer) IsDisableCache() bool {
+	return s.cacheController.disableCache
+}
+
 func (s *DoHNameServer) newReqID() uint16 {
 	return 0
 }
 
-func (s *DoHNameServer) sendQuery(ctx context.Context, noResponseErrCh chan<- error, domain string, option dns_feature.IPOption) {
-	errors.LogInfo(ctx, s.Name(), " querying: ", domain)
+// getCacheController implements CachedNameserver.
+func (s *DoHNameServer) getCacheController() *CacheController {
+	return s.cacheController
+}
 
-	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())
+// sendQuery implements CachedNameserver.
+func (s *DoHNameServer) sendQuery(ctx context.Context, noResponseErrCh chan<- error, fqdn string, option dns_feature.IPOption) {
+	errors.LogInfo(ctx, s.Name(), " querying: ", fqdn)
+
+	if s.Name()+"." == "DOH//"+fqdn {
+		errors.LogError(ctx, s.Name(), " tries to resolve itself! Use IP or set \"hosts\" instead")
+		if noResponseErrCh != nil {
+			noResponseErrCh <- errors.New("tries to resolve itself!", s.Name())
+		}
 		return
 	}
 
 	// 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))))
+	reqs := buildReqMsgs(fqdn, option, s.newReqID, genEDNS0Options(s.clientIP, int(crypto.RandBetween(100, 300))))
 
 	var deadline time.Time
 	if d, ok := ctx.Deadline(); ok {
@@ -166,23 +178,29 @@ func (s *DoHNameServer) sendQuery(ctx context.Context, noResponseErrCh chan<- er
 
 			b, err := dns.PackMessage(r.msg)
 			if err != nil {
-				errors.LogErrorInner(ctx, err, "failed to pack dns query for ", domain)
-				noResponseErrCh <- err
+				errors.LogErrorInner(ctx, err, "failed to pack dns query for ", fqdn)
+				if noResponseErrCh != nil {
+					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
+				errors.LogErrorInner(ctx, err, "failed to retrieve response for ", fqdn)
+				if noResponseErrCh != nil {
+					noResponseErrCh <- err
+				}
 				return
 			}
 			rec, err := parseResponse(resp)
 			if err != nil {
-				errors.LogErrorInner(ctx, err, "failed to handle DOH response for ", domain)
-				noResponseErrCh <- err
+				errors.LogErrorInner(ctx, err, "failed to handle DOH response for ", fqdn)
+				if noResponseErrCh != nil {
+					noResponseErrCh <- err
+				}
 				return
 			}
-			s.cacheController.updateIP(r, rec)
+			s.cacheController.updateRecord(r, rec)
 		}(req)
 	}
 }
@@ -216,49 +234,6 @@ func (s *DoHNameServer) dohHTTPSContext(ctx context.Context, b []byte) ([]byte,
 }
 
 // QueryIP implements Server.
-func (s *DoHNameServer) QueryIP(ctx context.Context, domain string, option dns_feature.IPOption) ([]net.IP, uint32, error) { // nolint: dupl
-	fqdn := Fqdn(domain)
-	sub4, sub6 := s.cacheController.registerSubscribers(fqdn, option)
-	defer closeSubscribers(sub4, sub6)
-
-	if s.cacheController.disableCache {
-		errors.LogDebug(ctx, "DNS cache is disabled. Querying IP for ", domain, " at ", s.Name())
-	} else {
-		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
-		}
-	}
-
-	noResponseErrCh := make(chan error, 2)
-	s.sendQuery(ctx, noResponseErrCh, fqdn, option)
-	start := time.Now()
-
-	if sub4 != nil {
-		select {
-		case <-ctx.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 (s *DoHNameServer) QueryIP(ctx context.Context, domain string, option dns_feature.IPOption) ([]net.IP, uint32, error) {
+	return queryIP(ctx, s, domain, option)
 }

app/dns/nameserver_doh_test.go

@@ -17,7 +17,7 @@ func TestDOHNameServer(t *testing.T) {
 	url, err := url.Parse("https+local://1.1.1.1/dns-query")
 	common.Must(err)
 
-	s := NewDoHNameServer(url, nil, false, false, net.IP(nil))
+	s := NewDoHNameServer(url, nil, false, false, false, 0, net.IP(nil))
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
 	ips, _, err := s.QueryIP(ctx, "google.com", dns_feature.IPOption{
 		IPv4Enable: true,
@@ -34,7 +34,7 @@ func TestDOHNameServerWithCache(t *testing.T) {
 	url, err := url.Parse("https+local://1.1.1.1/dns-query")
 	common.Must(err)
 
-	s := NewDoHNameServer(url, nil, false, false, net.IP(nil))
+	s := NewDoHNameServer(url, nil, false, false, false, 0, net.IP(nil))
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
 	ips, _, err := s.QueryIP(ctx, "google.com", dns_feature.IPOption{
 		IPv4Enable: true,
@@ -62,7 +62,7 @@ func TestDOHNameServerWithIPv4Override(t *testing.T) {
 	url, err := url.Parse("https+local://1.1.1.1/dns-query")
 	common.Must(err)
 
-	s := NewDoHNameServer(url, nil, false, false, net.IP(nil))
+	s := NewDoHNameServer(url, nil, false, false, false, 0, net.IP(nil))
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
 	ips, _, err := s.QueryIP(ctx, "google.com", dns_feature.IPOption{
 		IPv4Enable: true,
@@ -85,7 +85,7 @@ func TestDOHNameServerWithIPv6Override(t *testing.T) {
 	url, err := url.Parse("https+local://1.1.1.1/dns-query")
 	common.Must(err)
 
-	s := NewDoHNameServer(url, nil, false, false, net.IP(nil))
+	s := NewDoHNameServer(url, nil, false, false, false, 0, net.IP(nil))
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
 	ips, _, err := s.QueryIP(ctx, "google.com", dns_feature.IPOption{
 		IPv4Enable: false,

app/dns/nameserver_fakedns.go

@@ -20,6 +20,11 @@ func (FakeDNSServer) Name() string {
 	return "FakeDNS"
 }
 
+// IsDisableCache implements Server.
+func (s *FakeDNSServer) IsDisableCache() bool {
+	return true
+}
+
 func (f *FakeDNSServer) QueryIP(ctx context.Context, domain string, opt dns.IPOption) ([]net.IP, uint32, error) {
 	if f.fakeDNSEngine == nil {
 		return nil, 0, errors.New("Unable to locate a fake DNS Engine").AtError()

app/dns/nameserver_local.go

@@ -35,6 +35,11 @@ func (s *LocalNameServer) Name() string {
 	return "localhost"
 }
 
+// IsDisableCache implements Server.
+func (s *LocalNameServer) IsDisableCache() bool {
+	return true
+}
+
 // NewLocalNameServer creates localdns server object for directly lookup in system DNS.
 func NewLocalNameServer() *LocalNameServer {
 	errors.LogInfo(context.Background(), "DNS: created localhost client")

app/dns/nameserver_quic.go

@@ -4,12 +4,11 @@ import (
 	"bytes"
 	"context"
 	"encoding/binary"
-	go_errors "errors"
 	"net/url"
 	"sync"
 	"time"
 
-	"github.com/quic-go/quic-go"
+	"github.com/apernet/quic-go"
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/log"
@@ -37,9 +36,7 @@ type QUICNameServer struct {
 }
 
 // NewQUICNameServer creates DNS-over-QUIC client object for local resolving
-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())
-
+func NewQUICNameServer(url *url.URL, disableCache bool, serveStale bool, serveExpiredTTL uint32, clientIP net.IP) (*QUICNameServer, error) {
 	var err error
 	port := net.Port(853)
 	if url.Port() != "" {
@@ -51,27 +48,37 @@ func NewQUICNameServer(url *url.URL, disableCache bool, clientIP net.IP) (*QUICN
 	dest := net.UDPDestination(net.ParseAddress(url.Hostname()), port)
 
 	s := &QUICNameServer{
-		cacheController: NewCacheController(url.String(), disableCache),
+		cacheController: NewCacheController(url.String(), disableCache, serveStale, serveExpiredTTL),
 		destination:     &dest,
 		clientIP:        clientIP,
 	}
 
+	errors.LogInfo(context.Background(), "DNS: created Local DNS-over-QUIC client for ", url.String())
 	return s, nil
 }
 
-// Name returns client name
+// Name implements Server.
 func (s *QUICNameServer) Name() string {
 	return s.cacheController.name
 }
 
+// IsDisableCache implements Server.
+func (s *QUICNameServer) IsDisableCache() bool {
+	return s.cacheController.disableCache
+}
+
 func (s *QUICNameServer) newReqID() uint16 {
 	return 0
 }
 
-func (s *QUICNameServer) sendQuery(ctx context.Context, noResponseErrCh chan<- error, domain string, option dns_feature.IPOption) {
-	errors.LogInfo(ctx, s.Name(), " querying: ", domain)
+// getCacheController implements CachedNameServer.
+func (s *QUICNameServer) getCacheController() *CacheController { return s.cacheController }
 
-	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(s.clientIP, 0))
+// sendQuery implements CachedNameServer.
+func (s *QUICNameServer) sendQuery(ctx context.Context, noResponseErrCh chan<- error, fqdn string, option dns_feature.IPOption) {
+	errors.LogInfo(ctx, s.Name(), " querying: ", fqdn)
+
+	reqs := buildReqMsgs(fqdn, option, s.newReqID, genEDNS0Options(s.clientIP, 0))
 
 	var deadline time.Time
 	if d, ok := ctx.Deadline(); ok {
@@ -103,7 +110,9 @@ func (s *QUICNameServer) sendQuery(ctx context.Context, noResponseErrCh chan<- e
 			b, err := dns.PackMessage(r.msg)
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "failed to pack dns query")
-				noResponseErrCh <- err
+				if noResponseErrCh != nil {
+					noResponseErrCh <- err
+				}
 				return
 			}
 
@@ -111,13 +120,17 @@ func (s *QUICNameServer) sendQuery(ctx context.Context, noResponseErrCh chan<- e
 			err = binary.Write(dnsReqBuf, binary.BigEndian, uint16(b.Len()))
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "binary write failed")
-				noResponseErrCh <- err
+				if noResponseErrCh != nil {
+					noResponseErrCh <- err
+				}
 				return
 			}
 			_, err = dnsReqBuf.Write(b.Bytes())
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "buffer write failed")
-				noResponseErrCh <- err
+				if noResponseErrCh != nil {
+					noResponseErrCh <- err
+				}
 				return
 			}
 			b.Release()
@@ -125,14 +138,18 @@ func (s *QUICNameServer) sendQuery(ctx context.Context, noResponseErrCh chan<- e
 			conn, err := s.openStream(dnsCtx)
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "failed to open quic connection")
-				noResponseErrCh <- err
+				if noResponseErrCh != nil {
+					noResponseErrCh <- err
+				}
 				return
 			}
 
 			_, err = conn.Write(dnsReqBuf.Bytes())
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "failed to send query")
-				noResponseErrCh <- err
+				if noResponseErrCh != nil {
+					noResponseErrCh <- err
+				}
 				return
 			}
 
@@ -143,81 +160,46 @@ func (s *QUICNameServer) sendQuery(ctx context.Context, noResponseErrCh chan<- e
 			n, err := respBuf.ReadFullFrom(conn, 2)
 			if err != nil && n == 0 {
 				errors.LogErrorInner(ctx, err, "failed to read response length")
-				noResponseErrCh <- err
+				if noResponseErrCh != nil {
+					noResponseErrCh <- err
+				}
 				return
 			}
-			var length int16
+			var length uint16
 			err = binary.Read(bytes.NewReader(respBuf.Bytes()), binary.BigEndian, &length)
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "failed to parse response length")
-				noResponseErrCh <- err
+				if noResponseErrCh != nil {
+					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
+				if noResponseErrCh != nil {
+					noResponseErrCh <- err
+				}
 				return
 			}
 
 			rec, err := parseResponse(respBuf.Bytes())
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "failed to handle response")
-				noResponseErrCh <- err
+				if noResponseErrCh != nil {
+					noResponseErrCh <- err
+				}
 				return
 			}
-			s.cacheController.updateIP(r, rec)
+			s.cacheController.updateRecord(r, rec)
 		}(req)
 	}
 }
 
-// QueryIP is called from dns.Server->queryIPTimeout
+// QueryIP implements Server.
 func (s *QUICNameServer) QueryIP(ctx context.Context, domain string, option dns_feature.IPOption) ([]net.IP, uint32, error) {
-	fqdn := Fqdn(domain)
-	sub4, sub6 := s.cacheController.registerSubscribers(fqdn, option)
-	defer closeSubscribers(sub4, sub6)
-
-	if s.cacheController.disableCache {
-		errors.LogDebug(ctx, "DNS cache is disabled. Querying IP for ", domain, " at ", s.Name())
-	} else {
-		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
-		}
-	}
-
-	noResponseErrCh := make(chan error, 2)
-	s.sendQuery(ctx, noResponseErrCh, fqdn, option)
-	start := time.Now()
-
-	if sub4 != nil {
-		select {
-		case <-ctx.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
-
+	return queryIP(ctx, s, domain, option)
 }
 
 func isActive(s *quic.Conn) bool {

app/dns/nameserver_quic_test.go

@@ -16,7 +16,7 @@ import (
 func TestQUICNameServer(t *testing.T) {
 	url, err := url.Parse("quic://dns.adguard-dns.com")
 	common.Must(err)
-	s, err := NewQUICNameServer(url, false, net.IP(nil))
+	s, err := NewQUICNameServer(url, false, false, 0, net.IP(nil))
 	common.Must(err)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
 	ips, _, err := s.QueryIP(ctx, "google.com", dns.IPOption{
@@ -43,7 +43,7 @@ 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, false, net.IP(nil))
+	s, err := NewQUICNameServer(url, false, false, 0, net.IP(nil))
 	common.Must(err)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
 	ips, _, err := s.QueryIP(ctx, "google.com", dns.IPOption{
@@ -66,7 +66,7 @@ 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, false, net.IP(nil))
+	s, err := NewQUICNameServer(url, false, false, 0, net.IP(nil))
 	common.Must(err)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
 	ips, _, err := s.QueryIP(ctx, "google.com", dns.IPOption{

app/dns/nameserver_tcp.go

@@ -4,14 +4,12 @@ import (
 	"bytes"
 	"context"
 	"encoding/binary"
-	go_errors "errors"
 	"net/url"
 	"sync/atomic"
 	"time"
 
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/errors"
-	"github.com/xtls/xray-core/common/log"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/net/cnc"
 	"github.com/xtls/xray-core/common/protocol/dns"
@@ -34,10 +32,10 @@ type TCPNameServer struct {
 func NewTCPNameServer(
 	url *url.URL,
 	dispatcher routing.Dispatcher,
-	disableCache bool,
+	disableCache bool, serveStale bool, serveExpiredTTL uint32,
 	clientIP net.IP,
 ) (*TCPNameServer, error) {
-	s, err := baseTCPNameServer(url, "TCP", disableCache, clientIP)
+	s, err := baseTCPNameServer(url, "TCP", disableCache, serveStale, serveExpiredTTL, clientIP)
 	if err != nil {
 		return nil, err
 	}
@@ -54,12 +52,13 @@ func NewTCPNameServer(
 		), nil
 	}
 
+	errors.LogInfo(context.Background(), "DNS: created TCP client initialized for ", url.String())
 	return s, nil
 }
 
 // NewTCPLocalNameServer creates DNS over TCP client object for local resolving
-func NewTCPLocalNameServer(url *url.URL, disableCache bool, clientIP net.IP) (*TCPNameServer, error) {
-	s, err := baseTCPNameServer(url, "TCPL", disableCache, clientIP)
+func NewTCPLocalNameServer(url *url.URL, disableCache bool, serveStale bool, serveExpiredTTL uint32, clientIP net.IP) (*TCPNameServer, error) {
+	s, err := baseTCPNameServer(url, "TCPL", disableCache, serveStale, serveExpiredTTL, clientIP)
 	if err != nil {
 		return nil, err
 	}
@@ -68,10 +67,11 @@ func NewTCPLocalNameServer(url *url.URL, disableCache bool, clientIP net.IP) (*T
 		return internet.DialSystem(ctx, *s.destination, nil)
 	}
 
+	errors.LogInfo(context.Background(), "DNS: created Local TCP client initialized for ", url.String())
 	return s, nil
 }
 
-func baseTCPNameServer(url *url.URL, prefix string, disableCache bool, clientIP net.IP) (*TCPNameServer, error) {
+func baseTCPNameServer(url *url.URL, prefix string, disableCache bool, serveStale bool, serveExpiredTTL uint32, clientIP net.IP) (*TCPNameServer, error) {
 	port := net.Port(53)
 	if url.Port() != "" {
 		var err error
@@ -82,7 +82,7 @@ func baseTCPNameServer(url *url.URL, prefix string, disableCache bool, clientIP
 	dest := net.TCPDestination(net.ParseAddress(url.Hostname()), port)
 
 	s := &TCPNameServer{
-		cacheController: NewCacheController(prefix+"//"+dest.NetAddr(), disableCache),
+		cacheController: NewCacheController(prefix+"//"+dest.NetAddr(), disableCache, serveStale, serveExpiredTTL),
 		destination:     &dest,
 		clientIP:        clientIP,
 	}
@@ -95,14 +95,25 @@ func (s *TCPNameServer) Name() string {
 	return s.cacheController.name
 }
 
+// IsDisableCache implements Server.
+func (s *TCPNameServer) IsDisableCache() bool {
+	return s.cacheController.disableCache
+}
+
 func (s *TCPNameServer) newReqID() uint16 {
 	return uint16(atomic.AddUint32(&s.reqID, 1))
 }
 
-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)
+// getCacheController implements CachedNameserver.
+func (s *TCPNameServer) getCacheController() *CacheController {
+	return s.cacheController
+}
 
-	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(s.clientIP, 0))
+// sendQuery implements CachedNameserver.
+func (s *TCPNameServer) sendQuery(ctx context.Context, noResponseErrCh chan<- error, fqdn string, option dns_feature.IPOption) {
+	errors.LogInfo(ctx, s.Name(), " querying DNS for: ", fqdn)
+
+	reqs := buildReqMsgs(fqdn, option, s.newReqID, genEDNS0Options(s.clientIP, 0))
 
 	var deadline time.Time
 	if d, ok := ctx.Deadline(); ok {
@@ -131,14 +142,18 @@ func (s *TCPNameServer) sendQuery(ctx context.Context, noResponseErrCh chan<- er
 			b, err := dns.PackMessage(r.msg)
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "failed to pack dns query")
-				noResponseErrCh <- err
+				if noResponseErrCh != nil {
+					noResponseErrCh <- err
+				}
 				return
 			}
 
 			conn, err := s.dial(dnsCtx)
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "failed to dial namesever")
-				noResponseErrCh <- err
+				if noResponseErrCh != nil {
+					noResponseErrCh <- err
+				}
 				return
 			}
 			defer conn.Close()
@@ -146,13 +161,17 @@ func (s *TCPNameServer) sendQuery(ctx context.Context, noResponseErrCh chan<- er
 			err = binary.Write(dnsReqBuf, binary.BigEndian, uint16(b.Len()))
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "binary write failed")
-				noResponseErrCh <- err
+				if noResponseErrCh != nil {
+					noResponseErrCh <- err
+				}
 				return
 			}
 			_, err = dnsReqBuf.Write(b.Bytes())
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "buffer write failed")
-				noResponseErrCh <- err
+				if noResponseErrCh != nil {
+					noResponseErrCh <- err
+				}
 				return
 			}
 			b.Release()
@@ -160,7 +179,9 @@ func (s *TCPNameServer) sendQuery(ctx context.Context, noResponseErrCh chan<- er
 			_, err = conn.Write(dnsReqBuf.Bytes())
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "failed to send query")
-				noResponseErrCh <- err
+				if noResponseErrCh != nil {
+					noResponseErrCh <- err
+				}
 				return
 			}
 			dnsReqBuf.Release()
@@ -170,80 +191,45 @@ func (s *TCPNameServer) sendQuery(ctx context.Context, noResponseErrCh chan<- er
 			n, err := respBuf.ReadFullFrom(conn, 2)
 			if err != nil && n == 0 {
 				errors.LogErrorInner(ctx, err, "failed to read response length")
-				noResponseErrCh <- err
+				if noResponseErrCh != nil {
+					noResponseErrCh <- err
+				}
 				return
 			}
-			var length int16
+			var length uint16
 			err = binary.Read(bytes.NewReader(respBuf.Bytes()), binary.BigEndian, &length)
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "failed to parse response length")
-				noResponseErrCh <- err
+				if noResponseErrCh != nil {
+					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
+				if noResponseErrCh != nil {
+					noResponseErrCh <- err
+				}
 				return
 			}
 
 			rec, err := parseResponse(respBuf.Bytes())
 			if err != nil {
 				errors.LogErrorInner(ctx, err, "failed to parse DNS over TCP response")
-				noResponseErrCh <- err
+				if noResponseErrCh != nil {
+					noResponseErrCh <- err
+				}
 				return
 			}
 
-			s.cacheController.updateIP(r, rec)
+			s.cacheController.updateRecord(r, rec)
 		}(req)
 	}
 }
 
 // QueryIP implements Server.
 func (s *TCPNameServer) QueryIP(ctx context.Context, domain string, option dns_feature.IPOption) ([]net.IP, uint32, error) {
-	fqdn := Fqdn(domain)
-	sub4, sub6 := s.cacheController.registerSubscribers(fqdn, option)
-	defer closeSubscribers(sub4, sub6)
-
-	if s.cacheController.disableCache {
-		errors.LogDebug(ctx, "DNS cache is disabled. Querying IP for ", domain, " at ", s.Name())
-	} else {
-		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
-		}
-	}
-
-	noResponseErrCh := make(chan error, 2)
-	s.sendQuery(ctx, noResponseErrCh, fqdn, option)
-	start := time.Now()
-
-	if sub4 != nil {
-		select {
-		case <-ctx.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
-
+	return queryIP(ctx, s, domain, option)
 }

app/dns/nameserver_tcp_test.go

@@ -16,7 +16,7 @@ import (
 func TestTCPLocalNameServer(t *testing.T) {
 	url, err := url.Parse("tcp+local://8.8.8.8")
 	common.Must(err)
-	s, err := NewTCPLocalNameServer(url, false, net.IP(nil))
+	s, err := NewTCPLocalNameServer(url, false, false, 0, net.IP(nil))
 	common.Must(err)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
 	ips, _, err := s.QueryIP(ctx, "google.com", dns_feature.IPOption{
@@ -33,7 +33,7 @@ func TestTCPLocalNameServer(t *testing.T) {
 func TestTCPLocalNameServerWithCache(t *testing.T) {
 	url, err := url.Parse("tcp+local://8.8.8.8")
 	common.Must(err)
-	s, err := NewTCPLocalNameServer(url, false, net.IP(nil))
+	s, err := NewTCPLocalNameServer(url, false, false, 0, net.IP(nil))
 	common.Must(err)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
 	ips, _, err := s.QueryIP(ctx, "google.com", dns_feature.IPOption{
@@ -61,7 +61,7 @@ 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, false, net.IP(nil))
+	s, err := NewTCPLocalNameServer(url, false, false, 0, net.IP(nil))
 	common.Must(err)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
 	ips, _, err := s.QueryIP(ctx, "google.com", dns_feature.IPOption{
@@ -85,7 +85,7 @@ 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, false, net.IP(nil))
+	s, err := NewTCPLocalNameServer(url, false, false, 0, net.IP(nil))
 	common.Must(err)
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
 	ips, _, err := s.QueryIP(ctx, "google.com", dns_feature.IPOption{

app/dns/nameserver_udp.go

@@ -2,7 +2,6 @@ package dns
 
 import (
 	"context"
-	go_errors "errors"
 	"strings"
 	"sync"
 	"sync/atomic"
@@ -10,7 +9,6 @@ import (
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
-	"github.com/xtls/xray-core/common/log"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/protocol/dns"
 	udp_proto "github.com/xtls/xray-core/common/protocol/udp"
@@ -39,14 +37,14 @@ type udpDnsRequest struct {
 }
 
 // NewClassicNameServer creates udp server object for remote resolving.
-func NewClassicNameServer(address net.Destination, dispatcher routing.Dispatcher, disableCache bool, clientIP net.IP) *ClassicNameServer {
+func NewClassicNameServer(address net.Destination, dispatcher routing.Dispatcher, disableCache bool, serveStale bool, serveExpiredTTL uint32, clientIP net.IP) *ClassicNameServer {
 	// default to 53 if unspecific
 	if address.Port == 0 {
 		address.Port = net.Port(53)
 	}
 
 	s := &ClassicNameServer{
-		cacheController: NewCacheController(strings.ToUpper(address.String()), disableCache),
+		cacheController: NewCacheController(strings.ToUpper(address.String()), disableCache, serveStale, serveExpiredTTL),
 		address:         &address,
 		requests:        make(map[uint16]*udpDnsRequest),
 		clientIP:        clientIP,
@@ -56,6 +54,7 @@ func NewClassicNameServer(address net.Destination, dispatcher routing.Dispatcher
 		Execute:  s.RequestsCleanup,
 	}
 	s.udpServer = udp.NewDispatcher(dispatcher, s.HandleResponse)
+
 	errors.LogInfo(context.Background(), "DNS: created UDP client initialized for ", address.NetAddr())
 	return s
 }
@@ -65,6 +64,11 @@ func (s *ClassicNameServer) Name() string {
 	return s.cacheController.name
 }
 
+// IsDisableCache implements Server.
+func (s *ClassicNameServer) IsDisableCache() bool {
+	return s.cacheController.disableCache
+}
+
 // RequestsCleanup clears expired items from cache
 func (s *ClassicNameServer) RequestsCleanup() error {
 	now := time.Now()
@@ -90,9 +94,11 @@ func (s *ClassicNameServer) RequestsCleanup() error {
 
 // HandleResponse handles udp response packet from remote DNS server.
 func (s *ClassicNameServer) HandleResponse(ctx context.Context, packet *udp_proto.Packet) {
-	ipRec, err := parseResponse(packet.Payload.Bytes())
+	payload := packet.Payload
+	ipRec, err := parseResponse(payload.Bytes())
+	payload.Release()
 	if err != nil {
-		errors.LogError(ctx, s.Name(), " fail to parse responded DNS udp")
+		errors.LogErrorInner(ctx, err, s.Name(), " fail to parse responded DNS udp")
 		return
 	}
 
@@ -105,7 +111,7 @@ func (s *ClassicNameServer) HandleResponse(ctx context.Context, packet *udp_prot
 	}
 	s.Unlock()
 	if !ok {
-		errors.LogError(ctx, s.Name(), " cannot find the pending request")
+		errors.LogErrorInner(ctx, err, s.Name(), " cannot find the pending request")
 		return
 	}
 
@@ -125,12 +131,14 @@ func (s *ClassicNameServer) HandleResponse(ctx context.Context, packet *udp_prot
 			newReq.msg = &newMsg
 			s.addPendingRequest(&newReq)
 			b, _ := dns.PackMessage(newReq.msg)
+			copyDest := net.UDPDestination(s.address.Address, s.address.Port)
+			b.UDP = &copyDest
 			s.udpServer.Dispatch(toDnsContext(newReq.ctx, s.address.String()), *s.address, b)
 			return
 		}
 	}
 
-	s.cacheController.updateIP(&req.dnsRequest, ipRec)
+	s.cacheController.updateRecord(&req.dnsRequest, ipRec)
 }
 
 func (s *ClassicNameServer) newReqID() uint16 {
@@ -146,10 +154,16 @@ func (s *ClassicNameServer) addPendingRequest(req *udpDnsRequest) {
 	common.Must(s.requestsCleanup.Start())
 }
 
-func (s *ClassicNameServer) sendQuery(ctx context.Context, _ chan<- error, domain string, option dns_feature.IPOption) {
-	errors.LogDebug(ctx, s.Name(), " querying DNS for: ", domain)
+// getCacheController implements CachedNameserver.
+func (s *ClassicNameServer) getCacheController() *CacheController {
+	return s.cacheController
+}
 
-	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(s.clientIP, 0))
+// sendQuery implements CachedNameserver.
+func (s *ClassicNameServer) sendQuery(ctx context.Context, noResponseErrCh chan<- error, fqdn string, option dns_feature.IPOption) {
+	errors.LogInfo(ctx, s.Name(), " querying DNS for: ", fqdn)
+
+	reqs := buildReqMsgs(fqdn, option, s.newReqID, genEDNS0Options(s.clientIP, 0))
 
 	for _, req := range reqs {
 		udpReq := &udpDnsRequest{
@@ -157,55 +171,21 @@ func (s *ClassicNameServer) sendQuery(ctx context.Context, _ chan<- error, domai
 			ctx:        ctx,
 		}
 		s.addPendingRequest(udpReq)
-		b, _ := dns.PackMessage(req.msg)
+		b, err := dns.PackMessage(req.msg)
+		if err != nil {
+			errors.LogErrorInner(ctx, err, "failed to pack dns query")
+			if noResponseErrCh != nil {
+				noResponseErrCh <- err
+			}
+			return
+		}
+		copyDest := net.UDPDestination(s.address.Address, s.address.Port)
+		b.UDP = &copyDest
 		s.udpServer.Dispatch(toDnsContext(ctx, s.address.String()), *s.address, b)
 	}
 }
 
 // QueryIP implements Server.
 func (s *ClassicNameServer) QueryIP(ctx context.Context, domain string, option dns_feature.IPOption) ([]net.IP, uint32, error) {
-	fqdn := Fqdn(domain)
-	sub4, sub6 := s.cacheController.registerSubscribers(fqdn, option)
-	defer closeSubscribers(sub4, sub6)
-
-	if s.cacheController.disableCache {
-		errors.LogDebug(ctx, "DNS cache is disabled. Querying IP for ", domain, " at ", s.Name())
-	} else {
-		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
-		}
-	}
-
-	noResponseErrCh := make(chan error, 2)
-	s.sendQuery(ctx, noResponseErrCh, fqdn, option)
-	start := time.Now()
-
-	if sub4 != nil {
-		select {
-		case <-ctx.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
-
+	return queryIP(ctx, s, domain, option)
 }

app/log/log.go

@@ -2,8 +2,9 @@ package log
 
 import (
 	"context"
-	"fmt"
+	"net"
 	"regexp"
+	"strconv"
 	"strings"
 	"sync"
 
@@ -20,14 +21,23 @@ type Instance struct {
 	errorLogger  log.Handler
 	active       bool
 	dns          bool
+	mask4        int
+	mask6        int
 }
 
 // New creates a new log.Instance based on the given config.
 func New(ctx context.Context, config *Config) (*Instance, error) {
+	m4, m6, err := ParseMaskAddress(config.MaskAddress)
+	if err != nil {
+		return nil, err
+	}
+
 	g := &Instance{
 		config: config,
 		active: false,
 		dns:    config.EnableDnsLog,
+		mask4:  m4,
+		mask6:  m6,
 	}
 	log.RegisterHandler(g)
 
@@ -104,7 +114,11 @@ func (g *Instance) Handle(msg log.Message) {
 
 	var Msg log.Message
 	if g.config.MaskAddress != "" {
-		Msg = &MaskedMsgWrapper{Message: msg, config: g.config}
+		Msg = &MaskedMsgWrapper{
+			Message: msg,
+			Mask4:   g.mask4,
+			Mask6:   g.mask6,
+		}
 	} else {
 		Msg = msg
 	}
@@ -149,51 +163,87 @@ func (g *Instance) Close() error {
 	return nil
 }
 
+func ParseMaskAddress(c string) (int, int, error) {
+	var m4, m6 int
+	switch c {
+	case "half":
+		m4, m6 = 16, 32
+	case "quarter":
+		m4, m6 = 8, 16
+	case "full":
+		m4, m6 = 0, 0
+	case "":
+		// do nothing
+	default:
+		if parts := strings.Split(c, "+"); len(parts) > 0 {
+			if len(parts) >= 1 && parts[0] != "" {
+				i, err := strconv.Atoi(strings.TrimPrefix(parts[0], "/"))
+				if err != nil {
+					return 32, 128, err
+				}
+				m4 = i
+			}
+			if len(parts) >= 2 && parts[1] != "" {
+				i, err := strconv.Atoi(strings.TrimPrefix(parts[1], "/"))
+				if err != nil {
+					return 32, 128, err
+				}
+				m6 = i
+			}
+		}
+	}
+
+	if m4%8 != 0 || m4 > 32 || m4 < 0 {
+		return 32, 128, errors.New("Log Mask: ipv4 mask must be divisible by 8 and between 0-32")
+	}
+
+	return m4, m6, nil
+}
+
 // MaskedMsgWrapper is to wrap the string() method to mask IP addresses in the log.
 type MaskedMsgWrapper struct {
 	log.Message
-	config *Config
+	Mask4 int
+	Mask6 int
 }
 
+var (
+	ipv4Regex = regexp.MustCompile(`(\d{1,3}\.){3}\d{1,3}`)
+	ipv6Regex = regexp.MustCompile(`(?:[\da-fA-F]{0,4}:[\da-fA-F]{0,4}){2,7}`)
+)
+
 func (m *MaskedMsgWrapper) String() string {
 	str := m.Message.String()
 
-	ipv4Regex := regexp.MustCompile(`(\d{1,3}\.){3}\d{1,3}`)
-	ipv6Regex := regexp.MustCompile(`((?:[\da-fA-F]{0,4}:[\da-fA-F]{0,4}){2,7})(?:[\/\\%](\d{1,3}))?`)
-
 	// Process ipv4
-	maskedMsg := ipv4Regex.ReplaceAllStringFunc(str, func(ip string) string {
-		parts := strings.Split(ip, ".")
-		switch m.config.MaskAddress {
-		case "half":
-			return fmt.Sprintf("%s.%s.*.*", parts[0], parts[1])
-		case "quarter":
-			return fmt.Sprintf("%s.*.*.*", parts[0])
-		case "full":
-			return "[Masked IPv4]"
-		default:
-			return ip
+	maskedMsg := ipv4Regex.ReplaceAllStringFunc(str, func(s string) string {
+		if m.Mask4 == 32 {
+			return s
 		}
+		if m.Mask4 == 0 {
+			return "[Masked IPv4]"
+		}
+
+		parts := strings.Split(s, ".")
+		for i := m.Mask4 / 8; i < 4; i++ {
+			parts[i] = "*"
+		}
+		return strings.Join(parts, ".")
 	})
 
 	// process ipv6
-	maskedMsg = ipv6Regex.ReplaceAllStringFunc(maskedMsg, func(ip string) string {
-		parts := strings.Split(ip, ":")
-		switch m.config.MaskAddress {
-		case "half":
-			if len(parts) >= 2 {
-				return fmt.Sprintf("%s:%s::/32", parts[0], parts[1])
-			}
-		case "quarter":
-			if len(parts) >= 1 {
-				return fmt.Sprintf("%s::/16", parts[0])
-			}
-		case "full":
-			return "Masked IPv6" // Do not use [Masked IPv6] like ipv4, or you will get "[[Masked IPv6]]" (v6 address already has [])
-		default:
-			return ip
+	maskedMsg = ipv6Regex.ReplaceAllStringFunc(maskedMsg, func(s string) string {
+		if m.Mask6 == 128 {
+			return s
 		}
-		return ip
+		if m.Mask6 == 0 {
+			return "Masked IPv6"
+		}
+		ip := net.ParseIP(s)
+		if ip == nil {
+			return s
+		}
+		return ip.Mask(net.CIDRMask(m.Mask6, 128)).String() + "/" + strconv.Itoa(m.Mask6)
 	})
 
 	return maskedMsg

app/log/log_test.go

@@ -2,6 +2,7 @@ package log_test
 
 import (
 	"context"
+	"net"
 	"testing"
 
 	"github.com/golang/mock/gomock"
@@ -50,3 +51,39 @@ func TestCustomLogHandler(t *testing.T) {
 
 	common.Must(logger.Close())
 }
+
+func TestMaskAddress(t *testing.T) {
+	m4, m6, err := log.ParseMaskAddress("half")
+	if err != nil {
+		t.Fatal(err)
+	}
+	maskedAddr := log.MaskedMsgWrapper{
+		Mask4: m4,
+		Mask6: m6,
+	}
+	maskedAddr.Message = net.ParseIP("11.45.1.4")
+	if maskedAddr.String() != "11.45.*.*" {
+		t.Fatal("expected '11.45.*.*', but actually ", maskedAddr.String())
+	}
+	maskedAddr.Message = net.ParseIP("11:45:14:19:19:81:0::")
+	if maskedAddr.String() != "11:45::/32" {
+		t.Fatal("expected '11:45::/32', but actually", maskedAddr.String())
+	}
+
+	m4, m6, err = log.ParseMaskAddress("/16+/64")
+	if err != nil {
+		t.Fatal(err)
+	}
+	maskedAddr = log.MaskedMsgWrapper{
+		Mask4: m4,
+		Mask6: m6,
+	}
+	maskedAddr.Message = net.ParseIP("11.45.1.4")
+	if maskedAddr.String() != "11.45.*.*" {
+		t.Fatal("expected '11.45.*.*', but actually ", maskedAddr.String())
+	}
+	maskedAddr.Message = net.ParseIP("11:45:14:19:19:81:0::")
+	if maskedAddr.String() != "11:45:14:19::/64" {
+		t.Fatal("expected '11:45:14:19::/64', but actually", maskedAddr.String())
+	}
+}

app/proxyman/config.go

@@ -1,23 +1 @@
 package proxyman
-
-func (s *AllocationStrategy) GetConcurrencyValue() uint32 {
-	if s == nil || s.Concurrency == nil {
-		return 3
-	}
-	return s.Concurrency.Value
-}
-
-func (s *AllocationStrategy) GetRefreshValue() uint32 {
-	if s == nil || s.Refresh == nil {
-		return 5
-	}
-	return s.Refresh.Value
-}
-
-func (c *ReceiverConfig) GetEffectiveSniffingSettings() *SniffingConfig {
-	if c.SniffingSettings != nil {
-		return c.SniffingSettings
-	}
-
-	return nil
-}

app/proxyman/config.pb.go

@@ -23,58 +23,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-type AllocationStrategy_Type int32
-
-const (
-	// Always allocate all connection handlers.
-	AllocationStrategy_Always AllocationStrategy_Type = 0
-	// Randomly allocate specific range of handlers.
-	AllocationStrategy_Random AllocationStrategy_Type = 1
-	// External. Not supported yet.
-	AllocationStrategy_External AllocationStrategy_Type = 2
-)
-
-// Enum value maps for AllocationStrategy_Type.
-var (
-	AllocationStrategy_Type_name = map[int32]string{
-		0: "Always",
-		1: "Random",
-		2: "External",
-	}
-	AllocationStrategy_Type_value = map[string]int32{
-		"Always":   0,
-		"Random":   1,
-		"External": 2,
-	}
-)
-
-func (x AllocationStrategy_Type) Enum() *AllocationStrategy_Type {
-	p := new(AllocationStrategy_Type)
-	*p = x
-	return p
-}
-
-func (x AllocationStrategy_Type) String() string {
-	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
-}
-
-func (AllocationStrategy_Type) Descriptor() protoreflect.EnumDescriptor {
-	return file_app_proxyman_config_proto_enumTypes[0].Descriptor()
-}
-
-func (AllocationStrategy_Type) Type() protoreflect.EnumType {
-	return &file_app_proxyman_config_proto_enumTypes[0]
-}
-
-func (x AllocationStrategy_Type) Number() protoreflect.EnumNumber {
-	return protoreflect.EnumNumber(x)
-}
-
-// Deprecated: Use AllocationStrategy_Type.Descriptor instead.
-func (AllocationStrategy_Type) EnumDescriptor() ([]byte, []int) {
-	return file_app_proxyman_config_proto_rawDescGZIP(), []int{1, 0}
-}
-
 type InboundConfig struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -111,71 +59,6 @@ func (*InboundConfig) Descriptor() ([]byte, []int) {
 	return file_app_proxyman_config_proto_rawDescGZIP(), []int{0}
 }
 
-type AllocationStrategy struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Type AllocationStrategy_Type `protobuf:"varint,1,opt,name=type,proto3,enum=xray.app.proxyman.AllocationStrategy_Type" json:"type,omitempty"`
-	// Number of handlers (ports) running in parallel.
-	// Default value is 3 if unset.
-	Concurrency *AllocationStrategy_AllocationStrategyConcurrency `protobuf:"bytes,2,opt,name=concurrency,proto3" json:"concurrency,omitempty"`
-	// Number of minutes before a handler is regenerated.
-	// Default value is 5 if unset.
-	Refresh *AllocationStrategy_AllocationStrategyRefresh `protobuf:"bytes,3,opt,name=refresh,proto3" json:"refresh,omitempty"`
-}
-
-func (x *AllocationStrategy) Reset() {
-	*x = AllocationStrategy{}
-	mi := &file_app_proxyman_config_proto_msgTypes[1]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *AllocationStrategy) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*AllocationStrategy) ProtoMessage() {}
-
-func (x *AllocationStrategy) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_config_proto_msgTypes[1]
-	if x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use AllocationStrategy.ProtoReflect.Descriptor instead.
-func (*AllocationStrategy) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_config_proto_rawDescGZIP(), []int{1}
-}
-
-func (x *AllocationStrategy) GetType() AllocationStrategy_Type {
-	if x != nil {
-		return x.Type
-	}
-	return AllocationStrategy_Always
-}
-
-func (x *AllocationStrategy) GetConcurrency() *AllocationStrategy_AllocationStrategyConcurrency {
-	if x != nil {
-		return x.Concurrency
-	}
-	return nil
-}
-
-func (x *AllocationStrategy) GetRefresh() *AllocationStrategy_AllocationStrategyRefresh {
-	if x != nil {
-		return x.Refresh
-	}
-	return nil
-}
-
 type SniffingConfig struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -196,7 +79,7 @@ type SniffingConfig struct {
 
 func (x *SniffingConfig) Reset() {
 	*x = SniffingConfig{}
-	mi := &file_app_proxyman_config_proto_msgTypes[2]
+	mi := &file_app_proxyman_config_proto_msgTypes[1]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -208,7 +91,7 @@ func (x *SniffingConfig) String() string {
 func (*SniffingConfig) ProtoMessage() {}
 
 func (x *SniffingConfig) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_config_proto_msgTypes[2]
+	mi := &file_app_proxyman_config_proto_msgTypes[1]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -221,7 +104,7 @@ func (x *SniffingConfig) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use SniffingConfig.ProtoReflect.Descriptor instead.
 func (*SniffingConfig) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_config_proto_rawDescGZIP(), []int{2}
+	return file_app_proxyman_config_proto_rawDescGZIP(), []int{1}
 }
 
 func (x *SniffingConfig) GetEnabled() bool {
@@ -268,15 +151,14 @@ type ReceiverConfig struct {
 	PortList *net.PortList `protobuf:"bytes,1,opt,name=port_list,json=portList,proto3" json:"port_list,omitempty"`
 	// Listen specifies the IP address that the Receiver should listen on.
 	Listen                     *net.IPOrDomain        `protobuf:"bytes,2,opt,name=listen,proto3" json:"listen,omitempty"`
-	AllocationStrategy         *AllocationStrategy    `protobuf:"bytes,3,opt,name=allocation_strategy,json=allocationStrategy,proto3" json:"allocation_strategy,omitempty"`
-	StreamSettings             *internet.StreamConfig `protobuf:"bytes,4,opt,name=stream_settings,json=streamSettings,proto3" json:"stream_settings,omitempty"`
-	ReceiveOriginalDestination bool                   `protobuf:"varint,5,opt,name=receive_original_destination,json=receiveOriginalDestination,proto3" json:"receive_original_destination,omitempty"`
-	SniffingSettings           *SniffingConfig        `protobuf:"bytes,7,opt,name=sniffing_settings,json=sniffingSettings,proto3" json:"sniffing_settings,omitempty"`
+	StreamSettings             *internet.StreamConfig `protobuf:"bytes,3,opt,name=stream_settings,json=streamSettings,proto3" json:"stream_settings,omitempty"`
+	ReceiveOriginalDestination bool                   `protobuf:"varint,4,opt,name=receive_original_destination,json=receiveOriginalDestination,proto3" json:"receive_original_destination,omitempty"`
+	SniffingSettings           *SniffingConfig        `protobuf:"bytes,6,opt,name=sniffing_settings,json=sniffingSettings,proto3" json:"sniffing_settings,omitempty"`
 }
 
 func (x *ReceiverConfig) Reset() {
 	*x = ReceiverConfig{}
-	mi := &file_app_proxyman_config_proto_msgTypes[3]
+	mi := &file_app_proxyman_config_proto_msgTypes[2]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -288,7 +170,7 @@ func (x *ReceiverConfig) String() string {
 func (*ReceiverConfig) ProtoMessage() {}
 
 func (x *ReceiverConfig) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_config_proto_msgTypes[3]
+	mi := &file_app_proxyman_config_proto_msgTypes[2]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -301,7 +183,7 @@ func (x *ReceiverConfig) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ReceiverConfig.ProtoReflect.Descriptor instead.
 func (*ReceiverConfig) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_config_proto_rawDescGZIP(), []int{3}
+	return file_app_proxyman_config_proto_rawDescGZIP(), []int{2}
 }
 
 func (x *ReceiverConfig) GetPortList() *net.PortList {
@@ -318,13 +200,6 @@ func (x *ReceiverConfig) GetListen() *net.IPOrDomain {
 	return nil
 }
 
-func (x *ReceiverConfig) GetAllocationStrategy() *AllocationStrategy {
-	if x != nil {
-		return x.AllocationStrategy
-	}
-	return nil
-}
-
 func (x *ReceiverConfig) GetStreamSettings() *internet.StreamConfig {
 	if x != nil {
 		return x.StreamSettings
@@ -358,7 +233,7 @@ type InboundHandlerConfig struct {
 
 func (x *InboundHandlerConfig) Reset() {
 	*x = InboundHandlerConfig{}
-	mi := &file_app_proxyman_config_proto_msgTypes[4]
+	mi := &file_app_proxyman_config_proto_msgTypes[3]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -370,7 +245,7 @@ func (x *InboundHandlerConfig) String() string {
 func (*InboundHandlerConfig) ProtoMessage() {}
 
 func (x *InboundHandlerConfig) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_config_proto_msgTypes[4]
+	mi := &file_app_proxyman_config_proto_msgTypes[3]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -383,7 +258,7 @@ func (x *InboundHandlerConfig) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use InboundHandlerConfig.ProtoReflect.Descriptor instead.
 func (*InboundHandlerConfig) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_config_proto_rawDescGZIP(), []int{4}
+	return file_app_proxyman_config_proto_rawDescGZIP(), []int{3}
 }
 
 func (x *InboundHandlerConfig) GetTag() string {
@@ -415,7 +290,7 @@ type OutboundConfig struct {
 
 func (x *OutboundConfig) Reset() {
 	*x = OutboundConfig{}
-	mi := &file_app_proxyman_config_proto_msgTypes[5]
+	mi := &file_app_proxyman_config_proto_msgTypes[4]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -427,7 +302,7 @@ func (x *OutboundConfig) String() string {
 func (*OutboundConfig) ProtoMessage() {}
 
 func (x *OutboundConfig) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_config_proto_msgTypes[5]
+	mi := &file_app_proxyman_config_proto_msgTypes[4]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -440,7 +315,7 @@ func (x *OutboundConfig) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use OutboundConfig.ProtoReflect.Descriptor instead.
 func (*OutboundConfig) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_config_proto_rawDescGZIP(), []int{5}
+	return file_app_proxyman_config_proto_rawDescGZIP(), []int{4}
 }
 
 type SenderConfig struct {
@@ -459,7 +334,7 @@ type SenderConfig struct {
 
 func (x *SenderConfig) Reset() {
 	*x = SenderConfig{}
-	mi := &file_app_proxyman_config_proto_msgTypes[6]
+	mi := &file_app_proxyman_config_proto_msgTypes[5]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -471,7 +346,7 @@ func (x *SenderConfig) String() string {
 func (*SenderConfig) ProtoMessage() {}
 
 func (x *SenderConfig) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_config_proto_msgTypes[6]
+	mi := &file_app_proxyman_config_proto_msgTypes[5]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -484,7 +359,7 @@ func (x *SenderConfig) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use SenderConfig.ProtoReflect.Descriptor instead.
 func (*SenderConfig) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_config_proto_rawDescGZIP(), []int{6}
+	return file_app_proxyman_config_proto_rawDescGZIP(), []int{5}
 }
 
 func (x *SenderConfig) GetVia() *net.IPOrDomain {
@@ -546,7 +421,7 @@ type MultiplexingConfig struct {
 
 func (x *MultiplexingConfig) Reset() {
 	*x = MultiplexingConfig{}
-	mi := &file_app_proxyman_config_proto_msgTypes[7]
+	mi := &file_app_proxyman_config_proto_msgTypes[6]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -558,7 +433,7 @@ func (x *MultiplexingConfig) String() string {
 func (*MultiplexingConfig) ProtoMessage() {}
 
 func (x *MultiplexingConfig) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_config_proto_msgTypes[7]
+	mi := &file_app_proxyman_config_proto_msgTypes[6]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -571,7 +446,7 @@ func (x *MultiplexingConfig) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use MultiplexingConfig.ProtoReflect.Descriptor instead.
 func (*MultiplexingConfig) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_config_proto_rawDescGZIP(), []int{7}
+	return file_app_proxyman_config_proto_rawDescGZIP(), []int{6}
 }
 
 func (x *MultiplexingConfig) GetEnabled() bool {
@@ -602,96 +477,6 @@ func (x *MultiplexingConfig) GetXudpProxyUDP443() string {
 	return ""
 }
 
-type AllocationStrategy_AllocationStrategyConcurrency struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Value uint32 `protobuf:"varint,1,opt,name=value,proto3" json:"value,omitempty"`
-}
-
-func (x *AllocationStrategy_AllocationStrategyConcurrency) Reset() {
-	*x = AllocationStrategy_AllocationStrategyConcurrency{}
-	mi := &file_app_proxyman_config_proto_msgTypes[8]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *AllocationStrategy_AllocationStrategyConcurrency) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*AllocationStrategy_AllocationStrategyConcurrency) ProtoMessage() {}
-
-func (x *AllocationStrategy_AllocationStrategyConcurrency) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_config_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 AllocationStrategy_AllocationStrategyConcurrency.ProtoReflect.Descriptor instead.
-func (*AllocationStrategy_AllocationStrategyConcurrency) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_config_proto_rawDescGZIP(), []int{1, 0}
-}
-
-func (x *AllocationStrategy_AllocationStrategyConcurrency) GetValue() uint32 {
-	if x != nil {
-		return x.Value
-	}
-	return 0
-}
-
-type AllocationStrategy_AllocationStrategyRefresh struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Value uint32 `protobuf:"varint,1,opt,name=value,proto3" json:"value,omitempty"`
-}
-
-func (x *AllocationStrategy_AllocationStrategyRefresh) Reset() {
-	*x = AllocationStrategy_AllocationStrategyRefresh{}
-	mi := &file_app_proxyman_config_proto_msgTypes[9]
-	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-	ms.StoreMessageInfo(mi)
-}
-
-func (x *AllocationStrategy_AllocationStrategyRefresh) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*AllocationStrategy_AllocationStrategyRefresh) ProtoMessage() {}
-
-func (x *AllocationStrategy_AllocationStrategyRefresh) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_config_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 AllocationStrategy_AllocationStrategyRefresh.ProtoReflect.Descriptor instead.
-func (*AllocationStrategy_AllocationStrategyRefresh) Descriptor() ([]byte, []int) {
-	return file_app_proxyman_config_proto_rawDescGZIP(), []int{1, 1}
-}
-
-func (x *AllocationStrategy_AllocationStrategyRefresh) GetValue() uint32 {
-	if x != nil {
-		return x.Value
-	}
-	return 0
-}
-
 var File_app_proxyman_config_proto protoreflect.FileDescriptor
 
 var file_app_proxyman_config_proto_rawDesc = []byte{
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 }
 
 var (
@@ -844,48 +597,39 @@ func file_app_proxyman_config_proto_rawDescGZIP() []byte {
 	return file_app_proxyman_config_proto_rawDescData
 }
 
-var file_app_proxyman_config_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
-var file_app_proxyman_config_proto_msgTypes = make([]protoimpl.MessageInfo, 10)
+var file_app_proxyman_config_proto_msgTypes = make([]protoimpl.MessageInfo, 7)
 var file_app_proxyman_config_proto_goTypes = []any{
-	(AllocationStrategy_Type)(0),                             // 0: xray.app.proxyman.AllocationStrategy.Type
-	(*InboundConfig)(nil),                                    // 1: xray.app.proxyman.InboundConfig
-	(*AllocationStrategy)(nil),                               // 2: xray.app.proxyman.AllocationStrategy
-	(*SniffingConfig)(nil),                                   // 3: xray.app.proxyman.SniffingConfig
-	(*ReceiverConfig)(nil),                                   // 4: xray.app.proxyman.ReceiverConfig
-	(*InboundHandlerConfig)(nil),                             // 5: xray.app.proxyman.InboundHandlerConfig
-	(*OutboundConfig)(nil),                                   // 6: xray.app.proxyman.OutboundConfig
-	(*SenderConfig)(nil),                                     // 7: xray.app.proxyman.SenderConfig
-	(*MultiplexingConfig)(nil),                               // 8: xray.app.proxyman.MultiplexingConfig
-	(*AllocationStrategy_AllocationStrategyConcurrency)(nil), // 9: xray.app.proxyman.AllocationStrategy.AllocationStrategyConcurrency
-	(*AllocationStrategy_AllocationStrategyRefresh)(nil),     // 10: xray.app.proxyman.AllocationStrategy.AllocationStrategyRefresh
-	(*net.PortList)(nil),                                     // 11: xray.common.net.PortList
-	(*net.IPOrDomain)(nil),                                   // 12: xray.common.net.IPOrDomain
-	(*internet.StreamConfig)(nil),                            // 13: xray.transport.internet.StreamConfig
-	(*serial.TypedMessage)(nil),                              // 14: xray.common.serial.TypedMessage
-	(*internet.ProxyConfig)(nil),                             // 15: xray.transport.internet.ProxyConfig
-	(internet.DomainStrategy)(0),                             // 16: xray.transport.internet.DomainStrategy
+	(*InboundConfig)(nil),         // 0: xray.app.proxyman.InboundConfig
+	(*SniffingConfig)(nil),        // 1: xray.app.proxyman.SniffingConfig
+	(*ReceiverConfig)(nil),        // 2: xray.app.proxyman.ReceiverConfig
+	(*InboundHandlerConfig)(nil),  // 3: xray.app.proxyman.InboundHandlerConfig
+	(*OutboundConfig)(nil),        // 4: xray.app.proxyman.OutboundConfig
+	(*SenderConfig)(nil),          // 5: xray.app.proxyman.SenderConfig
+	(*MultiplexingConfig)(nil),    // 6: xray.app.proxyman.MultiplexingConfig
+	(*net.PortList)(nil),          // 7: xray.common.net.PortList
+	(*net.IPOrDomain)(nil),        // 8: xray.common.net.IPOrDomain
+	(*internet.StreamConfig)(nil), // 9: xray.transport.internet.StreamConfig
+	(*serial.TypedMessage)(nil),   // 10: xray.common.serial.TypedMessage
+	(*internet.ProxyConfig)(nil),  // 11: xray.transport.internet.ProxyConfig
+	(internet.DomainStrategy)(0),  // 12: 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
-	9,  // 1: xray.app.proxyman.AllocationStrategy.concurrency:type_name -> xray.app.proxyman.AllocationStrategy.AllocationStrategyConcurrency
-	10, // 2: xray.app.proxyman.AllocationStrategy.refresh:type_name -> xray.app.proxyman.AllocationStrategy.AllocationStrategyRefresh
-	11, // 3: xray.app.proxyman.ReceiverConfig.port_list:type_name -> xray.common.net.PortList
-	12, // 4: xray.app.proxyman.ReceiverConfig.listen:type_name -> xray.common.net.IPOrDomain
-	2,  // 5: xray.app.proxyman.ReceiverConfig.allocation_strategy:type_name -> xray.app.proxyman.AllocationStrategy
-	13, // 6: xray.app.proxyman.ReceiverConfig.stream_settings:type_name -> xray.transport.internet.StreamConfig
-	3,  // 7: xray.app.proxyman.ReceiverConfig.sniffing_settings:type_name -> xray.app.proxyman.SniffingConfig
-	14, // 8: xray.app.proxyman.InboundHandlerConfig.receiver_settings:type_name -> xray.common.serial.TypedMessage
-	14, // 9: xray.app.proxyman.InboundHandlerConfig.proxy_settings:type_name -> xray.common.serial.TypedMessage
-	12, // 10: xray.app.proxyman.SenderConfig.via:type_name -> xray.common.net.IPOrDomain
-	13, // 11: xray.app.proxyman.SenderConfig.stream_settings:type_name -> xray.transport.internet.StreamConfig
-	15, // 12: xray.app.proxyman.SenderConfig.proxy_settings:type_name -> xray.transport.internet.ProxyConfig
-	8,  // 13: xray.app.proxyman.SenderConfig.multiplex_settings:type_name -> xray.app.proxyman.MultiplexingConfig
-	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
+	7,  // 0: xray.app.proxyman.ReceiverConfig.port_list:type_name -> xray.common.net.PortList
+	8,  // 1: xray.app.proxyman.ReceiverConfig.listen:type_name -> xray.common.net.IPOrDomain
+	9,  // 2: xray.app.proxyman.ReceiverConfig.stream_settings:type_name -> xray.transport.internet.StreamConfig
+	1,  // 3: xray.app.proxyman.ReceiverConfig.sniffing_settings:type_name -> xray.app.proxyman.SniffingConfig
+	10, // 4: xray.app.proxyman.InboundHandlerConfig.receiver_settings:type_name -> xray.common.serial.TypedMessage
+	10, // 5: xray.app.proxyman.InboundHandlerConfig.proxy_settings:type_name -> xray.common.serial.TypedMessage
+	8,  // 6: xray.app.proxyman.SenderConfig.via:type_name -> xray.common.net.IPOrDomain
+	9,  // 7: xray.app.proxyman.SenderConfig.stream_settings:type_name -> xray.transport.internet.StreamConfig
+	11, // 8: xray.app.proxyman.SenderConfig.proxy_settings:type_name -> xray.transport.internet.ProxyConfig
+	6,  // 9: xray.app.proxyman.SenderConfig.multiplex_settings:type_name -> xray.app.proxyman.MultiplexingConfig
+	12, // 10: xray.app.proxyman.SenderConfig.target_strategy:type_name -> xray.transport.internet.DomainStrategy
+	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_proxyman_config_proto_init() }
@@ -898,14 +642,13 @@ func file_app_proxyman_config_proto_init() {
 		File: protoimpl.DescBuilder{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_app_proxyman_config_proto_rawDesc,
-			NumEnums:      1,
-			NumMessages:   10,
+			NumEnums:      0,
+			NumMessages:   7,
 			NumExtensions: 0,
 			NumServices:   0,
 		},
 		GoTypes:           file_app_proxyman_config_proto_goTypes,
 		DependencyIndexes: file_app_proxyman_config_proto_depIdxs,
-		EnumInfos:         file_app_proxyman_config_proto_enumTypes,
 		MessageInfos:      file_app_proxyman_config_proto_msgTypes,
 	}.Build()
 	File_app_proxyman_config_proto = out.File

app/proxyman/config.proto

@@ -13,33 +13,6 @@ import "common/serial/typed_message.proto";
 
 message InboundConfig {}
 
-message AllocationStrategy {
-  enum Type {
-    // Always allocate all connection handlers.
-    Always = 0;
-
-    // Randomly allocate specific range of handlers.
-    Random = 1;
-
-    // External. Not supported yet.
-    External = 2;
-  }
-
-  Type type = 1;
-
-  message AllocationStrategyConcurrency { uint32 value = 1; }
-
-  // Number of handlers (ports) running in parallel.
-  // Default value is 3 if unset.
-  AllocationStrategyConcurrency concurrency = 2;
-
-  message AllocationStrategyRefresh { uint32 value = 1; }
-
-  // Number of minutes before a handler is regenerated.
-  // Default value is 5 if unset.
-  AllocationStrategyRefresh refresh = 3;
-}
-
 message SniffingConfig {
   // Whether or not to enable content sniffing on an inbound connection.
   bool enabled = 1;
@@ -62,11 +35,10 @@ message ReceiverConfig {
   xray.common.net.PortList port_list = 1;
   // Listen specifies the IP address that the Receiver should listen on.
   xray.common.net.IPOrDomain listen = 2;
-  AllocationStrategy allocation_strategy = 3;
-  xray.transport.internet.StreamConfig stream_settings = 4;
-  bool receive_original_destination = 5;
-  reserved 6;
-  SniffingConfig sniffing_settings = 7;
+  xray.transport.internet.StreamConfig stream_settings = 3;
+  bool receive_original_destination = 4;
+  reserved 5;
+  SniffingConfig sniffing_settings = 6;
 }
 
 message InboundHandlerConfig {

app/proxyman/inbound/always.go

@@ -5,11 +5,11 @@ import (
 
 	"github.com/xtls/xray-core/app/proxyman"
 	"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/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/core"
 	"github.com/xtls/xray-core/features/policy"
 	"github.com/xtls/xray-core/features/stats"
@@ -53,6 +53,20 @@ type AlwaysOnInboundHandler struct {
 }
 
 func NewAlwaysOnInboundHandler(ctx context.Context, tag string, receiverConfig *proxyman.ReceiverConfig, proxyConfig interface{}) (*AlwaysOnInboundHandler, error) {
+	// Set tag and sniffing config in context before creating proxy
+	// This allows proxies like TUN to access these settings
+	ctx = session.ContextWithInbound(ctx, &session.Inbound{Tag: tag})
+	if receiverConfig.SniffingSettings != nil {
+		ctx = session.ContextWithContent(ctx, &session.Content{
+			SniffingRequest: session.SniffingRequest{
+				Enabled:                        receiverConfig.SniffingSettings.Enabled,
+				OverrideDestinationForProtocol: receiverConfig.SniffingSettings.DestinationOverride,
+				ExcludeForDomain:               receiverConfig.SniffingSettings.DomainsExcluded,
+				MetadataOnly:                   receiverConfig.SniffingSettings.MetadataOnly,
+				RouteOnly:                      receiverConfig.SniffingSettings.RouteOnly,
+			},
+		})
+	}
 	rawProxy, err := common.CreateObject(ctx, proxyConfig)
 	if err != nil {
 		return nil, err
@@ -103,7 +117,7 @@ func NewAlwaysOnInboundHandler(ctx context.Context, tag string, receiverConfig *
 				stream:          mss,
 				tag:             tag,
 				dispatcher:      h.mux,
-				sniffingConfig:  receiverConfig.GetEffectiveSniffingSettings(),
+				sniffingConfig:  receiverConfig.SniffingSettings,
 				uplinkCounter:   uplinkCounter,
 				downlinkCounter: downlinkCounter,
 				ctx:             ctx,
@@ -125,7 +139,7 @@ func NewAlwaysOnInboundHandler(ctx context.Context, tag string, receiverConfig *
 						recvOrigDest:    receiverConfig.ReceiveOriginalDestination,
 						tag:             tag,
 						dispatcher:      h.mux,
-						sniffingConfig:  receiverConfig.GetEffectiveSniffingSettings(),
+						sniffingConfig:  receiverConfig.SniffingSettings,
 						uplinkCounter:   uplinkCounter,
 						downlinkCounter: downlinkCounter,
 						ctx:             ctx,
@@ -140,7 +154,7 @@ func NewAlwaysOnInboundHandler(ctx context.Context, tag string, receiverConfig *
 						address:         address,
 						port:            net.Port(port),
 						dispatcher:      h.mux,
-						sniffingConfig:  receiverConfig.GetEffectiveSniffingSettings(),
+						sniffingConfig:  receiverConfig.SniffingSettings,
 						uplinkCounter:   uplinkCounter,
 						downlinkCounter: downlinkCounter,
 						stream:          mss,
@@ -178,14 +192,6 @@ func (h *AlwaysOnInboundHandler) Close() error {
 	return nil
 }
 
-func (h *AlwaysOnInboundHandler) GetRandomInboundProxy() (interface{}, net.Port, int) {
-	if len(h.workers) == 0 {
-		return nil, 0, 0
-	}
-	w := h.workers[dice.Roll(len(h.workers))]
-	return w.Proxy(), w.Port(), 9999
-}
-
 func (h *AlwaysOnInboundHandler) Tag() string {
 	return h.tag
 }

app/proxyman/inbound/dynamic.go

@@ -1,222 +0,0 @@
-package inbound
-
-import (
-	"context"
-	"sync"
-	"time"
-
-	"github.com/xtls/xray-core/app/proxyman"
-	"github.com/xtls/xray-core/common/dice"
-	"github.com/xtls/xray-core/common/errors"
-	"github.com/xtls/xray-core/common/mux"
-	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/common/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 {
-	tag            string
-	v              *core.Instance
-	proxyConfig    interface{}
-	receiverConfig *proxyman.ReceiverConfig
-	streamSettings *internet.MemoryStreamConfig
-	portMutex      sync.Mutex
-	portsInUse     map[net.Port]struct{}
-	workerMutex    sync.RWMutex
-	worker         []worker
-	lastRefresh    time.Time
-	mux            *mux.Server
-	task           *task.Periodic
-
-	ctx context.Context
-}
-
-func NewDynamicInboundHandler(ctx context.Context, tag string, receiverConfig *proxyman.ReceiverConfig, proxyConfig interface{}) (*DynamicInboundHandler, error) {
-	v := core.MustFromContext(ctx)
-	h := &DynamicInboundHandler{
-		tag:            tag,
-		proxyConfig:    proxyConfig,
-		receiverConfig: receiverConfig,
-		portsInUse:     make(map[net.Port]struct{}),
-		mux:            mux.NewServer(ctx),
-		v:              v,
-		ctx:            ctx,
-	}
-
-	mss, err := internet.ToMemoryStreamConfig(receiverConfig.StreamSettings)
-	if err != nil {
-		return nil, errors.New("failed to parse stream settings").Base(err).AtWarning()
-	}
-	if receiverConfig.ReceiveOriginalDestination {
-		if mss.SocketSettings == nil {
-			mss.SocketSettings = &internet.SocketConfig{}
-		}
-		if mss.SocketSettings.Tproxy == internet.SocketConfig_Off {
-			mss.SocketSettings.Tproxy = internet.SocketConfig_Redirect
-		}
-		mss.SocketSettings.ReceiveOriginalDestAddress = true
-	}
-
-	h.streamSettings = mss
-
-	h.task = &task.Periodic{
-		Interval: time.Minute * time.Duration(h.receiverConfig.AllocationStrategy.GetRefreshValue()),
-		Execute:  h.refresh,
-	}
-
-	return h, nil
-}
-
-func (h *DynamicInboundHandler) allocatePort() net.Port {
-	allPorts := []int32{}
-	for _, pr := range h.receiverConfig.PortList.Range {
-		for i := pr.From; i <= pr.To; i++ {
-			allPorts = append(allPorts, int32(i))
-		}
-	}
-	h.portMutex.Lock()
-	defer h.portMutex.Unlock()
-
-	for {
-		r := dice.Roll(len(allPorts))
-		port := net.Port(allPorts[r])
-		_, used := h.portsInUse[port]
-		if !used {
-			h.portsInUse[port] = struct{}{}
-			return port
-		}
-	}
-}
-
-func (h *DynamicInboundHandler) closeWorkers(workers []worker) {
-	ports2Del := make([]net.Port, len(workers))
-	for idx, worker := range workers {
-		ports2Del[idx] = worker.Port()
-		if err := worker.Close(); err != nil {
-			errors.LogInfoInner(h.ctx, err, "failed to close worker")
-		}
-	}
-
-	h.portMutex.Lock()
-	for _, port := range ports2Del {
-		delete(h.portsInUse, port)
-	}
-	h.portMutex.Unlock()
-}
-
-func (h *DynamicInboundHandler) refresh() error {
-	h.lastRefresh = time.Now()
-
-	timeout := time.Minute * time.Duration(h.receiverConfig.AllocationStrategy.GetRefreshValue()) * 2
-	concurrency := h.receiverConfig.AllocationStrategy.GetConcurrencyValue()
-	workers := make([]worker, 0, concurrency)
-
-	address := h.receiverConfig.Listen.AsAddress()
-	if address == nil {
-		address = net.AnyIP
-	}
-
-	uplinkCounter, downlinkCounter := getStatCounter(h.v, h.tag)
-
-	for i := uint32(0); i < concurrency; i++ {
-		port := h.allocatePort()
-		rawProxy, err := core.CreateObject(h.v, h.proxyConfig)
-		if err != nil {
-			errors.LogWarningInner(h.ctx, err, "failed to create proxy instance")
-			continue
-		}
-		p := rawProxy.(proxy.Inbound)
-		nl := p.Network()
-		if net.HasNetwork(nl, net.Network_TCP) {
-			worker := &tcpWorker{
-				tag:             h.tag,
-				address:         address,
-				port:            port,
-				proxy:           p,
-				stream:          h.streamSettings,
-				recvOrigDest:    h.receiverConfig.ReceiveOriginalDestination,
-				dispatcher:      h.mux,
-				sniffingConfig:  h.receiverConfig.GetEffectiveSniffingSettings(),
-				uplinkCounter:   uplinkCounter,
-				downlinkCounter: downlinkCounter,
-				ctx:             h.ctx,
-			}
-			if err := worker.Start(); err != nil {
-				errors.LogWarningInner(h.ctx, err, "failed to create TCP worker")
-				continue
-			}
-			workers = append(workers, worker)
-		}
-
-		if net.HasNetwork(nl, net.Network_UDP) {
-			worker := &udpWorker{
-				tag:             h.tag,
-				proxy:           p,
-				address:         address,
-				port:            port,
-				dispatcher:      h.mux,
-				sniffingConfig:  h.receiverConfig.GetEffectiveSniffingSettings(),
-				uplinkCounter:   uplinkCounter,
-				downlinkCounter: downlinkCounter,
-				stream:          h.streamSettings,
-				ctx:             h.ctx,
-			}
-			if err := worker.Start(); err != nil {
-				errors.LogWarningInner(h.ctx, err, "failed to create UDP worker")
-				continue
-			}
-			workers = append(workers, worker)
-		}
-	}
-
-	h.workerMutex.Lock()
-	h.worker = workers
-	h.workerMutex.Unlock()
-
-	time.AfterFunc(timeout, func() {
-		h.closeWorkers(workers)
-	})
-
-	return nil
-}
-
-func (h *DynamicInboundHandler) Start() error {
-	return h.task.Start()
-}
-
-func (h *DynamicInboundHandler) Close() error {
-	return h.task.Close()
-}
-
-func (h *DynamicInboundHandler) GetRandomInboundProxy() (interface{}, net.Port, int) {
-	h.workerMutex.RLock()
-	defer h.workerMutex.RUnlock()
-
-	if len(h.worker) == 0 {
-		return nil, 0, 0
-	}
-	w := h.worker[dice.Roll(len(h.worker))]
-	expire := h.receiverConfig.AllocationStrategy.GetRefreshValue() - uint32(time.Since(h.lastRefresh)/time.Minute)
-	return w.Proxy(), w.Port(), int(expire)
-}
-
-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

@@ -178,15 +178,7 @@ func NewHandler(ctx context.Context, config *core.InboundHandlerConfig) (inbound
 		ctx = session.ContextWithAllowedNetwork(ctx, net.Network_UDP)
 	}
 
-	allocStrategy := receiverSettings.AllocationStrategy
-	if allocStrategy == nil || allocStrategy.Type == proxyman.AllocationStrategy_Always {
-		return NewAlwaysOnInboundHandler(ctx, tag, receiverSettings, proxySettings)
-	}
-
-	if allocStrategy.Type == proxyman.AllocationStrategy_Random {
-		return NewDynamicInboundHandler(ctx, tag, receiverSettings, proxySettings)
-	}
-	return nil, errors.New("unknown allocation strategy: ", receiverSettings.AllocationStrategy.Type).AtError()
+	return NewAlwaysOnInboundHandler(ctx, tag, receiverSettings, proxySettings)
 }
 
 func init() {

app/proxyman/inbound/worker.go

@@ -76,7 +76,25 @@ func (w *tcpWorker) callback(conn stat.Connection) {
 		case internet.SocketConfig_TProxy:
 			dest = net.DestinationFromAddr(conn.LocalAddr())
 		}
+
 		if dest.IsValid() {
+			// Check if try to connect to this inbound itself (can cause loopback)
+			var isLoopBack bool
+			if w.address == net.AnyIP || w.address == net.AnyIPv6 {
+				if dest.Port.Value() == w.port.Value() && IsLocal(dest.Address.IP()) {
+					isLoopBack = true
+				}
+			} else {
+				if w.hub.Addr().String() == dest.NetAddr() {
+					isLoopBack = true
+				}
+			}
+			if isLoopBack {
+				cancel()
+				conn.Close()
+				errors.LogError(ctx, errors.New("loopback connection detected"))
+				return
+			}
 			outbounds[0].Target = dest
 		}
 	}
@@ -544,3 +562,18 @@ func (w *dsWorker) Close() error {
 
 	return nil
 }
+
+func IsLocal(ip net.IP) bool {
+	addrs, err := net.InterfaceAddrs()
+	if err != nil {
+		return false
+	}
+	for _, addr := range addrs {
+		if ipnet, ok := addr.(*net.IPNet); ok {
+			if ipnet.IP.Equal(ip) {
+				return true
+			}
+		}
+	}
+	return false
+}

app/proxyman/outbound/handler.go

@@ -6,7 +6,6 @@ import (
 	goerrors "errors"
 	"io"
 	"math/big"
-	gonet "net"
 	"os"
 
 	"github.com/xtls/xray-core/common/dice"
@@ -108,6 +107,8 @@ func NewHandler(ctx context.Context, config *core.OutboundHandlerConfig) (outbou
 	}
 	h.proxyConfig = proxyConfig
 
+	ctx = session.ContextWithFullHandler(ctx, h)
+
 	rawProxyHandler, err := common.CreateObject(ctx, proxyConfig)
 	if err != nil {
 		return nil, err
@@ -239,8 +240,10 @@ func (h *Handler) Dispatch(ctx context.Context, link *transport.Link) {
 	}
 out:
 	err := h.proxy.Process(ctx, link, h)
+	var errC error
 	if err != nil {
-		if goerrors.Is(err, io.EOF) || goerrors.Is(err, io.ErrClosedPipe) || goerrors.Is(err, context.Canceled) {
+		errC = errors.Cause(err)
+		if goerrors.Is(errC, io.EOF) || goerrors.Is(errC, io.ErrClosedPipe) || goerrors.Is(errC, context.Canceled) {
 			err = nil
 		}
 	}
@@ -251,7 +254,11 @@ out:
 		errors.LogInfo(ctx, err.Error())
 		common.Interrupt(link.Writer)
 	} else {
-		common.Close(link.Writer)
+		if errC != nil && goerrors.Is(errC, io.ErrClosedPipe) {
+			common.Interrupt(link.Writer)
+		} else {
+			common.Close(link.Writer)
+		}
 	}
 	common.Interrupt(link.Reader)
 }
@@ -309,8 +316,12 @@ func (h *Handler) Dial(ctx context.Context, dest net.Destination) (stat.Connecti
 	conn, err := internet.Dial(ctx, dest, h.streamSettings)
 	conn = h.getStatCouterConnection(conn)
 	outbounds := session.OutboundsFromContext(ctx)
-	ob := outbounds[len(outbounds)-1]
-	ob.Conn = conn
+	if outbounds != nil {
+		ob := outbounds[len(outbounds)-1]
+		ob.Conn = conn
+	} else {
+		// for Vision's pre-connect
+	}
 	return conn, err
 }
 
@@ -386,7 +397,7 @@ func (h *Handler) ProxySettings() *serial.TypedMessage {
 
 func ParseRandomIP(addr net.Address, prefix string) net.Address {
 
-	_, ipnet, _ := gonet.ParseCIDR(addr.IP().String() + "/" + prefix)
+	_, ipnet, _ := net.ParseCIDR(addr.IP().String() + "/" + prefix)
 
 	ones, bits := ipnet.Mask.Size()
 	subnetSize := new(big.Int).Lsh(big.NewInt(1), uint(bits-ones))
@@ -400,5 +411,5 @@ func ParseRandomIP(addr net.Address, prefix string) net.Address {
 	padded := make([]byte, len(ipnet.IP))
 	copy(padded[len(padded)-len(rndBytes):], rndBytes)
 
-	return net.ParseAddress(gonet.IP(padded).String())
+	return net.ParseAddress(net.IP(padded).String())
 }

app/reverse/bridge.go

@@ -8,6 +8,7 @@ import (
 	"github.com/xtls/xray-core/common/mux"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/session"
+	"github.com/xtls/xray-core/common/signal"
 	"github.com/xtls/xray-core/common/task"
 	"github.com/xtls/xray-core/features/routing"
 	"github.com/xtls/xray-core/transport"
@@ -52,6 +53,11 @@ func (b *Bridge) cleanup() {
 		if w.IsActive() {
 			activeWorkers = append(activeWorkers, w)
 		}
+		if w.Closed() {
+			if w.Timer != nil {
+				w.Timer.SetTimeout(0)
+			}
+		}
 	}
 
 	if len(activeWorkers) != len(b.workers) {
@@ -93,10 +99,11 @@ func (b *Bridge) Close() error {
 }
 
 type BridgeWorker struct {
-	tag        string
-	worker     *mux.ServerWorker
-	dispatcher routing.Dispatcher
-	state      Control_State
+	Tag        string
+	Worker     *mux.ServerWorker
+	Dispatcher routing.Dispatcher
+	State      Control_State
+	Timer      *signal.ActivityTimer
 }
 
 func NewBridgeWorker(domain string, tag string, d routing.Dispatcher) (*BridgeWorker, error) {
@@ -114,16 +121,20 @@ func NewBridgeWorker(domain string, tag string, d routing.Dispatcher) (*BridgeWo
 	}
 
 	w := &BridgeWorker{
-		dispatcher: d,
-		tag:        tag,
+		Dispatcher: d,
+		Tag:        tag,
 	}
 
 	worker, err := mux.NewServerWorker(context.Background(), w, link)
 	if err != nil {
 		return nil, err
 	}
-	w.worker = worker
+	w.Worker = worker
 
+	terminate := func() {
+		worker.Close()
+	}
+	w.Timer = signal.CancelAfterInactivity(ctx, terminate, 60*time.Second)
 	return w, nil
 }
 
@@ -140,48 +151,65 @@ func (w *BridgeWorker) Close() error {
 }
 
 func (w *BridgeWorker) IsActive() bool {
-	return w.state == Control_ACTIVE && !w.worker.Closed()
+	return w.State == Control_ACTIVE && !w.Worker.Closed()
+}
+
+func (w *BridgeWorker) Closed() bool {
+	return w.Worker.Closed()
 }
 
 func (w *BridgeWorker) Connections() uint32 {
-	return w.worker.ActiveConnections()
+	return w.Worker.ActiveConnections()
 }
 
 func (w *BridgeWorker) handleInternalConn(link *transport.Link) {
-	go func() {
-		reader := link.Reader
-		for {
-			mb, err := reader.ReadMultiBuffer()
-			if err != nil {
-				break
+	reader := link.Reader
+	for {
+		mb, err := reader.ReadMultiBuffer()
+		if err != nil {
+			if w.Timer != nil {
+				if w.Closed() {
+					w.Timer.SetTimeout(0)
+				} else {
+					w.Timer.SetTimeout(24 * time.Hour)
+				}
 			}
-			for _, b := range mb {
-				var ctl Control
-				if err := proto.Unmarshal(b.Bytes(), &ctl); err != nil {
-					errors.LogInfoInner(context.Background(), err, "failed to parse proto message")
-					break
-				}
-				if ctl.State != w.state {
-					w.state = ctl.State
+			return
+		}
+		if w.Timer != nil {
+			w.Timer.Update()
+		}
+		for _, b := range mb {
+			var ctl Control
+			if err := proto.Unmarshal(b.Bytes(), &ctl); err != nil {
+				errors.LogInfoInner(context.Background(), err, "failed to parse proto message")
+				if w.Timer != nil {
+					w.Timer.SetTimeout(0)
 				}
+				return
+			}
+			if ctl.State != w.State {
+				w.State = ctl.State
 			}
 		}
-	}()
+	}
 }
 
 func (w *BridgeWorker) Dispatch(ctx context.Context, dest net.Destination) (*transport.Link, error) {
 	if !isInternalDomain(dest) {
-		ctx = session.ContextWithInbound(ctx, &session.Inbound{
-			Tag: w.tag,
-		})
-		return w.dispatcher.Dispatch(ctx, dest)
+		if session.InboundFromContext(ctx) == nil {
+			ctx = session.ContextWithInbound(ctx, &session.Inbound{
+				Tag: w.Tag,
+			})
+		}
+		return w.Dispatcher.Dispatch(ctx, dest)
 	}
 
 	opt := []pipe.Option{pipe.WithSizeLimit(16 * 1024)}
 	uplinkReader, uplinkWriter := pipe.New(opt...)
 	downlinkReader, downlinkWriter := pipe.New(opt...)
 
-	w.handleInternalConn(&transport.Link{
+	go w.handleInternalConn(&transport.Link{
 		Reader: downlinkReader,
 		Writer: uplinkWriter,
 	})
@@ -194,12 +222,13 @@ func (w *BridgeWorker) Dispatch(ctx context.Context, dest net.Destination) (*tra
 
 func (w *BridgeWorker) DispatchLink(ctx context.Context, dest net.Destination, link *transport.Link) error {
 	if !isInternalDomain(dest) {
-		ctx = session.ContextWithInbound(ctx, &session.Inbound{
-			Tag: w.tag,
-		})
-		return w.dispatcher.DispatchLink(ctx, dest, link)
+		if session.InboundFromContext(ctx) == nil {
+			ctx = session.ContextWithInbound(ctx, &session.Inbound{
+				Tag: w.Tag,
+			})
+		}
+		return w.Dispatcher.DispatchLink(ctx, dest, link)
 	}
-
 	w.handleInternalConn(link)
 
 	return nil

app/reverse/portal.go

@@ -12,6 +12,7 @@ import (
 	"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/signal"
 	"github.com/xtls/xray-core/common/task"
 	"github.com/xtls/xray-core/features/outbound"
 	"github.com/xtls/xray-core/transport"
@@ -82,9 +83,21 @@ func (p *Portal) HandleConnection(ctx context.Context, link *transport.Link) err
 		}
 
 		p.picker.AddWorker(worker)
+
+		if _, ok := link.Reader.(*pipe.Reader); !ok {
+			select {
+			case <-ctx.Done():
+			case <-muxClient.WaitClosed():
+			}
+		}
 		return nil
 	}
 
+	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}
+	}
+
 	return p.client.Dispatch(ctx, link)
 }
 
@@ -101,6 +114,7 @@ func (o *Outbound) Dispatch(ctx context.Context, link *transport.Link) {
 	if err := o.portal.HandleConnection(ctx, link); err != nil {
 		errors.LogInfoInner(ctx, err, "failed to process reverse connection")
 		common.Interrupt(link.Writer)
+		common.Interrupt(link.Reader)
 	}
 }
 
@@ -146,6 +160,8 @@ func (p *StaticMuxPicker) cleanup() error {
 	for _, w := range p.workers {
 		if !w.Closed() {
 			activeWorkers = append(activeWorkers, w)
+		} else {
+			w.timer.SetTimeout(0)
 		}
 	}
 
@@ -212,6 +228,7 @@ type PortalWorker struct {
 	reader   buf.Reader
 	draining bool
 	counter  uint32
+	timer    *signal.ActivityTimer
 }
 
 func NewPortalWorker(client *mux.ClientWorker) (*PortalWorker, error) {
@@ -231,10 +248,14 @@ func NewPortalWorker(client *mux.ClientWorker) (*PortalWorker, error) {
 	if !f {
 		return nil, errors.New("unable to dispatch control connection")
 	}
+	terminate := func() {
+		client.Close()
+	}
 	w := &PortalWorker{
 		client: client,
 		reader: downlinkReader,
 		writer: uplinkWriter,
+		timer:  signal.CancelAfterInactivity(ctx, terminate, 24*time.Hour), // // prevent leak
 	}
 	w.control = &task.Periodic{
 		Execute:  w.heartbeat,
@@ -261,7 +282,6 @@ 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
@@ -273,6 +293,7 @@ func (w *PortalWorker) heartbeat() error {
 		b, err := proto.Marshal(msg)
 		common.Must(err)
 		mb := buf.MergeBytes(nil, b)
+		w.timer.Update()
 		return w.writer.WriteMultiBuffer(mb)
 	}
 	return nil

app/reverse/reverse.go

@@ -12,7 +12,7 @@ import (
 )
 
 const (
-	internalDomain = "reverse.internal.v2fly.org" // make reverse proxy compatible with v2fly
+	internalDomain = "reverse"
 )
 
 func isDomain(dest net.Destination, domain string) bool {

app/router/command/command.go

@@ -60,6 +60,7 @@ func (s *routingServer) AddRule(ctx context.Context, request *AddRuleRequest) (*
 	return nil, errors.New("unsupported router implementation")
 
 }
+
 func (s *routingServer) RemoveRule(ctx context.Context, request *RemoveRuleRequest) (*RemoveRuleResponse, error) {
 	if bo, ok := s.router.(routing.Router); ok {
 		return &RemoveRuleResponse{}, bo.RemoveRule(request.RuleTag)
@@ -67,6 +68,20 @@ func (s *routingServer) RemoveRule(ctx context.Context, request *RemoveRuleReque
 	return nil, errors.New("unsupported router implementation")
 }
 
+func (s *routingServer) ListRule(ctx context.Context, request *ListRuleRequest) (*ListRuleResponse, error) {
+	if bo, ok := s.router.(routing.Router); ok {
+		response := &ListRuleResponse{}
+		for _, v := range bo.ListRule() {
+			response.Rules = append(response.Rules, &ListRuleItem{
+				Tag:     v.GetOutboundTag(),
+				RuleTag: v.GetRuleTag(),
+			})
+		}
+		return response, nil
+	}
+	return nil, errors.New("unsupported router implementation")
+}
+
 // NewRoutingServer creates a statistics service with statistics manager.
 func NewRoutingServer(router routing.Router, routingStats stats.Channel) RoutingServiceServer {
 	return &routingServer{

app/router/command/command.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.35.1
-// 	protoc        v5.28.2
+// 	protoc-gen-go v1.36.11
+// 	protoc        v6.33.2
 // source: app/router/command/command.proto
 
 package command
@@ -13,6 +13,7 @@ import (
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
 	sync "sync"
+	unsafe "unsafe"
 )
 
 const (
@@ -26,25 +27,24 @@ const (
 // It conforms to the structure of xray.features.routing.Context and
 // xray.features.routing.Route.
 type RoutingContext struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	InboundTag        string            `protobuf:"bytes,1,opt,name=InboundTag,proto3" json:"InboundTag,omitempty"`
-	Network           net.Network       `protobuf:"varint,2,opt,name=Network,proto3,enum=xray.common.net.Network" json:"Network,omitempty"`
-	SourceIPs         [][]byte          `protobuf:"bytes,3,rep,name=SourceIPs,proto3" json:"SourceIPs,omitempty"`
-	TargetIPs         [][]byte          `protobuf:"bytes,4,rep,name=TargetIPs,proto3" json:"TargetIPs,omitempty"`
-	SourcePort        uint32            `protobuf:"varint,5,opt,name=SourcePort,proto3" json:"SourcePort,omitempty"`
-	TargetPort        uint32            `protobuf:"varint,6,opt,name=TargetPort,proto3" json:"TargetPort,omitempty"`
-	TargetDomain      string            `protobuf:"bytes,7,opt,name=TargetDomain,proto3" json:"TargetDomain,omitempty"`
-	Protocol          string            `protobuf:"bytes,8,opt,name=Protocol,proto3" json:"Protocol,omitempty"`
-	User              string            `protobuf:"bytes,9,opt,name=User,proto3" json:"User,omitempty"`
-	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"`
+	state             protoimpl.MessageState `protogen:"open.v1"`
+	InboundTag        string                 `protobuf:"bytes,1,opt,name=InboundTag,proto3" json:"InboundTag,omitempty"`
+	Network           net.Network            `protobuf:"varint,2,opt,name=Network,proto3,enum=xray.common.net.Network" json:"Network,omitempty"`
+	SourceIPs         [][]byte               `protobuf:"bytes,3,rep,name=SourceIPs,proto3" json:"SourceIPs,omitempty"`
+	TargetIPs         [][]byte               `protobuf:"bytes,4,rep,name=TargetIPs,proto3" json:"TargetIPs,omitempty"`
+	SourcePort        uint32                 `protobuf:"varint,5,opt,name=SourcePort,proto3" json:"SourcePort,omitempty"`
+	TargetPort        uint32                 `protobuf:"varint,6,opt,name=TargetPort,proto3" json:"TargetPort,omitempty"`
+	TargetDomain      string                 `protobuf:"bytes,7,opt,name=TargetDomain,proto3" json:"TargetDomain,omitempty"`
+	Protocol          string                 `protobuf:"bytes,8,opt,name=Protocol,proto3" json:"Protocol,omitempty"`
+	User              string                 `protobuf:"bytes,9,opt,name=User,proto3" json:"User,omitempty"`
+	Attributes        map[string]string      `protobuf:"bytes,10,rep,name=Attributes,proto3" json:"Attributes,omitempty" protobuf_key:"bytes,1,opt,name=key" protobuf_val:"bytes,2,opt,name=value"`
+	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"`
+	unknownFields     protoimpl.UnknownFields
+	sizeCache         protoimpl.SizeCache
 }
 
 func (x *RoutingContext) Reset() {
@@ -201,11 +201,10 @@ func (x *RoutingContext) GetVlessRoute() uint32 {
 //
 // * If FieldSelectors is left empty, all fields will be returned.
 type SubscribeRoutingStatsRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	FieldSelectors []string `protobuf:"bytes,1,rep,name=FieldSelectors,proto3" json:"FieldSelectors,omitempty"`
+	state          protoimpl.MessageState `protogen:"open.v1"`
+	FieldSelectors []string               `protobuf:"bytes,1,rep,name=FieldSelectors,proto3" json:"FieldSelectors,omitempty"`
+	unknownFields  protoimpl.UnknownFields
+	sizeCache      protoimpl.SizeCache
 }
 
 func (x *SubscribeRoutingStatsRequest) Reset() {
@@ -253,13 +252,12 @@ func (x *SubscribeRoutingStatsRequest) GetFieldSelectors() []string {
 // * PublishResult broadcasts the routing result to routing statistics channel
 // if set true.
 type TestRouteRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	RoutingContext *RoutingContext `protobuf:"bytes,1,opt,name=RoutingContext,proto3" json:"RoutingContext,omitempty"`
-	FieldSelectors []string        `protobuf:"bytes,2,rep,name=FieldSelectors,proto3" json:"FieldSelectors,omitempty"`
-	PublishResult  bool            `protobuf:"varint,3,opt,name=PublishResult,proto3" json:"PublishResult,omitempty"`
+	state          protoimpl.MessageState `protogen:"open.v1"`
+	RoutingContext *RoutingContext        `protobuf:"bytes,1,opt,name=RoutingContext,proto3" json:"RoutingContext,omitempty"`
+	FieldSelectors []string               `protobuf:"bytes,2,rep,name=FieldSelectors,proto3" json:"FieldSelectors,omitempty"`
+	PublishResult  bool                   `protobuf:"varint,3,opt,name=PublishResult,proto3" json:"PublishResult,omitempty"`
+	unknownFields  protoimpl.UnknownFields
+	sizeCache      protoimpl.SizeCache
 }
 
 func (x *TestRouteRequest) Reset() {
@@ -314,11 +312,10 @@ func (x *TestRouteRequest) GetPublishResult() bool {
 }
 
 type PrincipleTargetInfo struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Tag           []string               `protobuf:"bytes,1,rep,name=tag,proto3" json:"tag,omitempty"`
 	unknownFields protoimpl.UnknownFields
-
-	Tag []string `protobuf:"bytes,1,rep,name=tag,proto3" json:"tag,omitempty"`
+	sizeCache     protoimpl.SizeCache
 }
 
 func (x *PrincipleTargetInfo) Reset() {
@@ -359,11 +356,10 @@ func (x *PrincipleTargetInfo) GetTag() []string {
 }
 
 type OverrideInfo struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Target        string                 `protobuf:"bytes,2,opt,name=target,proto3" json:"target,omitempty"`
 	unknownFields protoimpl.UnknownFields
-
-	Target string `protobuf:"bytes,2,opt,name=target,proto3" json:"target,omitempty"`
+	sizeCache     protoimpl.SizeCache
 }
 
 func (x *OverrideInfo) Reset() {
@@ -404,12 +400,11 @@ func (x *OverrideInfo) GetTarget() string {
 }
 
 type BalancerMsg struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Override        *OverrideInfo        `protobuf:"bytes,5,opt,name=override,proto3" json:"override,omitempty"`
-	PrincipleTarget *PrincipleTargetInfo `protobuf:"bytes,6,opt,name=principle_target,json=principleTarget,proto3" json:"principle_target,omitempty"`
+	state           protoimpl.MessageState `protogen:"open.v1"`
+	Override        *OverrideInfo          `protobuf:"bytes,5,opt,name=override,proto3" json:"override,omitempty"`
+	PrincipleTarget *PrincipleTargetInfo   `protobuf:"bytes,6,opt,name=principle_target,json=principleTarget,proto3" json:"principle_target,omitempty"`
+	unknownFields   protoimpl.UnknownFields
+	sizeCache       protoimpl.SizeCache
 }
 
 func (x *BalancerMsg) Reset() {
@@ -457,11 +452,10 @@ func (x *BalancerMsg) GetPrincipleTarget() *PrincipleTargetInfo {
 }
 
 type GetBalancerInfoRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Tag           string                 `protobuf:"bytes,1,opt,name=tag,proto3" json:"tag,omitempty"`
 	unknownFields protoimpl.UnknownFields
-
-	Tag string `protobuf:"bytes,1,opt,name=tag,proto3" json:"tag,omitempty"`
+	sizeCache     protoimpl.SizeCache
 }
 
 func (x *GetBalancerInfoRequest) Reset() {
@@ -502,11 +496,10 @@ func (x *GetBalancerInfoRequest) GetTag() string {
 }
 
 type GetBalancerInfoResponse struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Balancer      *BalancerMsg           `protobuf:"bytes,1,opt,name=balancer,proto3" json:"balancer,omitempty"`
 	unknownFields protoimpl.UnknownFields
-
-	Balancer *BalancerMsg `protobuf:"bytes,1,opt,name=balancer,proto3" json:"balancer,omitempty"`
+	sizeCache     protoimpl.SizeCache
 }
 
 func (x *GetBalancerInfoResponse) Reset() {
@@ -547,12 +540,11 @@ func (x *GetBalancerInfoResponse) GetBalancer() *BalancerMsg {
 }
 
 type OverrideBalancerTargetRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	BalancerTag   string                 `protobuf:"bytes,1,opt,name=balancerTag,proto3" json:"balancerTag,omitempty"`
+	Target        string                 `protobuf:"bytes,2,opt,name=target,proto3" json:"target,omitempty"`
 	unknownFields protoimpl.UnknownFields
-
-	BalancerTag string `protobuf:"bytes,1,opt,name=balancerTag,proto3" json:"balancerTag,omitempty"`
-	Target      string `protobuf:"bytes,2,opt,name=target,proto3" json:"target,omitempty"`
+	sizeCache     protoimpl.SizeCache
 }
 
 func (x *OverrideBalancerTargetRequest) Reset() {
@@ -600,9 +592,9 @@ func (x *OverrideBalancerTargetRequest) GetTarget() string {
 }
 
 type OverrideBalancerTargetResponse struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
+	state         protoimpl.MessageState `protogen:"open.v1"`
 	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
 }
 
 func (x *OverrideBalancerTargetResponse) Reset() {
@@ -636,12 +628,11 @@ func (*OverrideBalancerTargetResponse) Descriptor() ([]byte, []int) {
 }
 
 type AddRuleRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Config        *serial.TypedMessage   `protobuf:"bytes,1,opt,name=config,proto3" json:"config,omitempty"`
+	ShouldAppend  bool                   `protobuf:"varint,2,opt,name=shouldAppend,proto3" json:"shouldAppend,omitempty"`
 	unknownFields protoimpl.UnknownFields
-
-	Config       *serial.TypedMessage `protobuf:"bytes,1,opt,name=config,proto3" json:"config,omitempty"`
-	ShouldAppend bool                 `protobuf:"varint,2,opt,name=shouldAppend,proto3" json:"shouldAppend,omitempty"`
+	sizeCache     protoimpl.SizeCache
 }
 
 func (x *AddRuleRequest) Reset() {
@@ -689,9 +680,9 @@ func (x *AddRuleRequest) GetShouldAppend() bool {
 }
 
 type AddRuleResponse struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
+	state         protoimpl.MessageState `protogen:"open.v1"`
 	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
 }
 
 func (x *AddRuleResponse) Reset() {
@@ -725,11 +716,10 @@ func (*AddRuleResponse) Descriptor() ([]byte, []int) {
 }
 
 type RemoveRuleRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	RuleTag       string                 `protobuf:"bytes,1,opt,name=ruleTag,proto3" json:"ruleTag,omitempty"`
 	unknownFields protoimpl.UnknownFields
-
-	RuleTag string `protobuf:"bytes,1,opt,name=ruleTag,proto3" json:"ruleTag,omitempty"`
+	sizeCache     protoimpl.SizeCache
 }
 
 func (x *RemoveRuleRequest) Reset() {
@@ -770,9 +760,9 @@ func (x *RemoveRuleRequest) GetRuleTag() string {
 }
 
 type RemoveRuleResponse struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
+	state         protoimpl.MessageState `protogen:"open.v1"`
 	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
 }
 
 func (x *RemoveRuleResponse) Reset() {
@@ -805,15 +795,147 @@ func (*RemoveRuleResponse) Descriptor() ([]byte, []int) {
 	return file_app_router_command_command_proto_rawDescGZIP(), []int{13}
 }
 
-type Config struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
+type ListRuleRequest struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
 	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *ListRuleRequest) Reset() {
+	*x = ListRuleRequest{}
+	mi := &file_app_router_command_command_proto_msgTypes[14]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *ListRuleRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ListRuleRequest) ProtoMessage() {}
+
+func (x *ListRuleRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_app_router_command_command_proto_msgTypes[14]
+	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 ListRuleRequest.ProtoReflect.Descriptor instead.
+func (*ListRuleRequest) Descriptor() ([]byte, []int) {
+	return file_app_router_command_command_proto_rawDescGZIP(), []int{14}
+}
+
+type ListRuleItem struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Tag           string                 `protobuf:"bytes,1,opt,name=tag,proto3" json:"tag,omitempty"`
+	RuleTag       string                 `protobuf:"bytes,2,opt,name=ruleTag,proto3" json:"ruleTag,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *ListRuleItem) Reset() {
+	*x = ListRuleItem{}
+	mi := &file_app_router_command_command_proto_msgTypes[15]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *ListRuleItem) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ListRuleItem) ProtoMessage() {}
+
+func (x *ListRuleItem) ProtoReflect() protoreflect.Message {
+	mi := &file_app_router_command_command_proto_msgTypes[15]
+	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 ListRuleItem.ProtoReflect.Descriptor instead.
+func (*ListRuleItem) Descriptor() ([]byte, []int) {
+	return file_app_router_command_command_proto_rawDescGZIP(), []int{15}
+}
+
+func (x *ListRuleItem) GetTag() string {
+	if x != nil {
+		return x.Tag
+	}
+	return ""
+}
+
+func (x *ListRuleItem) GetRuleTag() string {
+	if x != nil {
+		return x.RuleTag
+	}
+	return ""
+}
+
+type ListRuleResponse struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Rules         []*ListRuleItem        `protobuf:"bytes,1,rep,name=rules,proto3" json:"rules,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *ListRuleResponse) Reset() {
+	*x = ListRuleResponse{}
+	mi := &file_app_router_command_command_proto_msgTypes[16]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *ListRuleResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ListRuleResponse) ProtoMessage() {}
+
+func (x *ListRuleResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_app_router_command_command_proto_msgTypes[16]
+	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 ListRuleResponse.ProtoReflect.Descriptor instead.
+func (*ListRuleResponse) Descriptor() ([]byte, []int) {
+	return file_app_router_command_command_proto_rawDescGZIP(), []int{16}
+}
+
+func (x *ListRuleResponse) GetRules() []*ListRuleItem {
+	if x != nil {
+		return x.Rules
+	}
+	return nil
+}
+
+type Config struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
 }
 
 func (x *Config) Reset() {
 	*x = Config{}
-	mi := &file_app_router_command_command_proto_msgTypes[14]
+	mi := &file_app_router_command_command_proto_msgTypes[17]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -825,7 +947,7 @@ func (x *Config) String() string {
 func (*Config) ProtoMessage() {}
 
 func (x *Config) ProtoReflect() protoreflect.Message {
-	mi := &file_app_router_command_command_proto_msgTypes[14]
+	mi := &file_app_router_command_command_proto_msgTypes[17]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -838,187 +960,103 @@ func (x *Config) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Config.ProtoReflect.Descriptor instead.
 func (*Config) Descriptor() ([]byte, []int) {
-	return file_app_router_command_command_proto_rawDescGZIP(), []int{14}
+	return file_app_router_command_command_proto_rawDescGZIP(), []int{17}
 }
 
 var File_app_router_command_command_proto protoreflect.FileDescriptor
 
-var file_app_router_command_command_proto_rawDesc = []byte{
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-}
+const file_app_router_command_command_proto_rawDesc = "" +
+	"\n" +
+	" app/router/command/command.proto\x12\x17xray.app.router.command\x1a\x18common/net/network.proto\x1a!common/serial/typed_message.proto\"\xf6\x04\n" +
+	"\x0eRoutingContext\x12\x1e\n" +
+	"\n" +
+	"InboundTag\x18\x01 \x01(\tR\n" +
+	"InboundTag\x122\n" +
+	"\aNetwork\x18\x02 \x01(\x0e2\x18.xray.common.net.NetworkR\aNetwork\x12\x1c\n" +
+	"\tSourceIPs\x18\x03 \x03(\fR\tSourceIPs\x12\x1c\n" +
+	"\tTargetIPs\x18\x04 \x03(\fR\tTargetIPs\x12\x1e\n" +
+	"\n" +
+	"SourcePort\x18\x05 \x01(\rR\n" +
+	"SourcePort\x12\x1e\n" +
+	"\n" +
+	"TargetPort\x18\x06 \x01(\rR\n" +
+	"TargetPort\x12\"\n" +
+	"\fTargetDomain\x18\a \x01(\tR\fTargetDomain\x12\x1a\n" +
+	"\bProtocol\x18\b \x01(\tR\bProtocol\x12\x12\n" +
+	"\x04User\x18\t \x01(\tR\x04User\x12W\n" +
+	"\n" +
+	"Attributes\x18\n" +
+	" \x03(\v27.xray.app.router.command.RoutingContext.AttributesEntryR\n" +
+	"Attributes\x12,\n" +
+	"\x11OutboundGroupTags\x18\v \x03(\tR\x11OutboundGroupTags\x12 \n" +
+	"\vOutboundTag\x18\f \x01(\tR\vOutboundTag\x12\x1a\n" +
+	"\bLocalIPs\x18\r \x03(\fR\bLocalIPs\x12\x1c\n" +
+	"\tLocalPort\x18\x0e \x01(\rR\tLocalPort\x12\x1e\n" +
+	"\n" +
+	"VlessRoute\x18\x0f \x01(\rR\n" +
+	"VlessRoute\x1a=\n" +
+	"\x0fAttributesEntry\x12\x10\n" +
+	"\x03key\x18\x01 \x01(\tR\x03key\x12\x14\n" +
+	"\x05value\x18\x02 \x01(\tR\x05value:\x028\x01\"F\n" +
+	"\x1cSubscribeRoutingStatsRequest\x12&\n" +
+	"\x0eFieldSelectors\x18\x01 \x03(\tR\x0eFieldSelectors\"\xb1\x01\n" +
+	"\x10TestRouteRequest\x12O\n" +
+	"\x0eRoutingContext\x18\x01 \x01(\v2'.xray.app.router.command.RoutingContextR\x0eRoutingContext\x12&\n" +
+	"\x0eFieldSelectors\x18\x02 \x03(\tR\x0eFieldSelectors\x12$\n" +
+	"\rPublishResult\x18\x03 \x01(\bR\rPublishResult\"'\n" +
+	"\x13PrincipleTargetInfo\x12\x10\n" +
+	"\x03tag\x18\x01 \x03(\tR\x03tag\"&\n" +
+	"\fOverrideInfo\x12\x16\n" +
+	"\x06target\x18\x02 \x01(\tR\x06target\"\xa9\x01\n" +
+	"\vBalancerMsg\x12A\n" +
+	"\boverride\x18\x05 \x01(\v2%.xray.app.router.command.OverrideInfoR\boverride\x12W\n" +
+	"\x10principle_target\x18\x06 \x01(\v2,.xray.app.router.command.PrincipleTargetInfoR\x0fprincipleTarget\"*\n" +
+	"\x16GetBalancerInfoRequest\x12\x10\n" +
+	"\x03tag\x18\x01 \x01(\tR\x03tag\"[\n" +
+	"\x17GetBalancerInfoResponse\x12@\n" +
+	"\bbalancer\x18\x01 \x01(\v2$.xray.app.router.command.BalancerMsgR\bbalancer\"Y\n" +
+	"\x1dOverrideBalancerTargetRequest\x12 \n" +
+	"\vbalancerTag\x18\x01 \x01(\tR\vbalancerTag\x12\x16\n" +
+	"\x06target\x18\x02 \x01(\tR\x06target\" \n" +
+	"\x1eOverrideBalancerTargetResponse\"n\n" +
+	"\x0eAddRuleRequest\x128\n" +
+	"\x06config\x18\x01 \x01(\v2 .xray.common.serial.TypedMessageR\x06config\x12\"\n" +
+	"\fshouldAppend\x18\x02 \x01(\bR\fshouldAppend\"\x11\n" +
+	"\x0fAddRuleResponse\"-\n" +
+	"\x11RemoveRuleRequest\x12\x18\n" +
+	"\aruleTag\x18\x01 \x01(\tR\aruleTag\"\x14\n" +
+	"\x12RemoveRuleResponse\"\x11\n" +
+	"\x0fListRuleRequest\":\n" +
+	"\fListRuleItem\x12\x10\n" +
+	"\x03tag\x18\x01 \x01(\tR\x03tag\x12\x18\n" +
+	"\aruleTag\x18\x02 \x01(\tR\aruleTag\"O\n" +
+	"\x10ListRuleResponse\x12;\n" +
+	"\x05rules\x18\x01 \x03(\v2%.xray.app.router.command.ListRuleItemR\x05rules\"\b\n" +
+	"\x06Config2\xa2\x06\n" +
+	"\x0eRoutingService\x12{\n" +
+	"\x15SubscribeRoutingStats\x125.xray.app.router.command.SubscribeRoutingStatsRequest\x1a'.xray.app.router.command.RoutingContext\"\x000\x01\x12a\n" +
+	"\tTestRoute\x12).xray.app.router.command.TestRouteRequest\x1a'.xray.app.router.command.RoutingContext\"\x00\x12v\n" +
+	"\x0fGetBalancerInfo\x12/.xray.app.router.command.GetBalancerInfoRequest\x1a0.xray.app.router.command.GetBalancerInfoResponse\"\x00\x12\x8b\x01\n" +
+	"\x16OverrideBalancerTarget\x126.xray.app.router.command.OverrideBalancerTargetRequest\x1a7.xray.app.router.command.OverrideBalancerTargetResponse\"\x00\x12^\n" +
+	"\aAddRule\x12'.xray.app.router.command.AddRuleRequest\x1a(.xray.app.router.command.AddRuleResponse\"\x00\x12g\n" +
+	"\n" +
+	"RemoveRule\x12*.xray.app.router.command.RemoveRuleRequest\x1a+.xray.app.router.command.RemoveRuleResponse\"\x00\x12a\n" +
+	"\bListRule\x12(.xray.app.router.command.ListRuleRequest\x1a).xray.app.router.command.ListRuleResponse\"\x00Bg\n" +
+	"\x1bcom.xray.app.router.commandP\x01Z,github.com/xtls/xray-core/app/router/command\xaa\x02\x17Xray.App.Router.Commandb\x06proto3"
 
 var (
 	file_app_router_command_command_proto_rawDescOnce sync.Once
-	file_app_router_command_command_proto_rawDescData = file_app_router_command_command_proto_rawDesc
+	file_app_router_command_command_proto_rawDescData []byte
 )
 
 func file_app_router_command_command_proto_rawDescGZIP() []byte {
 	file_app_router_command_command_proto_rawDescOnce.Do(func() {
-		file_app_router_command_command_proto_rawDescData = protoimpl.X.CompressGZIP(file_app_router_command_command_proto_rawDescData)
+		file_app_router_command_command_proto_rawDescData = protoimpl.X.CompressGZIP(unsafe.Slice(unsafe.StringData(file_app_router_command_command_proto_rawDesc), len(file_app_router_command_command_proto_rawDesc)))
 	})
 	return file_app_router_command_command_proto_rawDescData
 }
 
-var file_app_router_command_command_proto_msgTypes = make([]protoimpl.MessageInfo, 16)
+var file_app_router_command_command_proto_msgTypes = make([]protoimpl.MessageInfo, 19)
 var file_app_router_command_command_proto_goTypes = []any{
 	(*RoutingContext)(nil),                 // 0: xray.app.router.command.RoutingContext
 	(*SubscribeRoutingStatsRequest)(nil),   // 1: xray.app.router.command.SubscribeRoutingStatsRequest
@@ -1034,36 +1072,42 @@ var file_app_router_command_command_proto_goTypes = []any{
 	(*AddRuleResponse)(nil),                // 11: xray.app.router.command.AddRuleResponse
 	(*RemoveRuleRequest)(nil),              // 12: xray.app.router.command.RemoveRuleRequest
 	(*RemoveRuleResponse)(nil),             // 13: xray.app.router.command.RemoveRuleResponse
-	(*Config)(nil),                         // 14: xray.app.router.command.Config
-	nil,                                    // 15: xray.app.router.command.RoutingContext.AttributesEntry
-	(net.Network)(0),                       // 16: xray.common.net.Network
-	(*serial.TypedMessage)(nil),            // 17: xray.common.serial.TypedMessage
+	(*ListRuleRequest)(nil),                // 14: xray.app.router.command.ListRuleRequest
+	(*ListRuleItem)(nil),                   // 15: xray.app.router.command.ListRuleItem
+	(*ListRuleResponse)(nil),               // 16: xray.app.router.command.ListRuleResponse
+	(*Config)(nil),                         // 17: xray.app.router.command.Config
+	nil,                                    // 18: xray.app.router.command.RoutingContext.AttributesEntry
+	(net.Network)(0),                       // 19: xray.common.net.Network
+	(*serial.TypedMessage)(nil),            // 20: xray.common.serial.TypedMessage
 }
 var file_app_router_command_command_proto_depIdxs = []int32{
-	16, // 0: xray.app.router.command.RoutingContext.Network:type_name -> xray.common.net.Network
-	15, // 1: xray.app.router.command.RoutingContext.Attributes:type_name -> xray.app.router.command.RoutingContext.AttributesEntry
+	19, // 0: xray.app.router.command.RoutingContext.Network:type_name -> xray.common.net.Network
+	18, // 1: xray.app.router.command.RoutingContext.Attributes:type_name -> xray.app.router.command.RoutingContext.AttributesEntry
 	0,  // 2: xray.app.router.command.TestRouteRequest.RoutingContext:type_name -> xray.app.router.command.RoutingContext
 	4,  // 3: xray.app.router.command.BalancerMsg.override:type_name -> xray.app.router.command.OverrideInfo
 	3,  // 4: xray.app.router.command.BalancerMsg.principle_target:type_name -> xray.app.router.command.PrincipleTargetInfo
 	5,  // 5: xray.app.router.command.GetBalancerInfoResponse.balancer:type_name -> xray.app.router.command.BalancerMsg
-	17, // 6: xray.app.router.command.AddRuleRequest.config:type_name -> xray.common.serial.TypedMessage
-	1,  // 7: xray.app.router.command.RoutingService.SubscribeRoutingStats:input_type -> xray.app.router.command.SubscribeRoutingStatsRequest
-	2,  // 8: xray.app.router.command.RoutingService.TestRoute:input_type -> xray.app.router.command.TestRouteRequest
-	6,  // 9: xray.app.router.command.RoutingService.GetBalancerInfo:input_type -> xray.app.router.command.GetBalancerInfoRequest
-	8,  // 10: xray.app.router.command.RoutingService.OverrideBalancerTarget:input_type -> xray.app.router.command.OverrideBalancerTargetRequest
-	10, // 11: xray.app.router.command.RoutingService.AddRule:input_type -> xray.app.router.command.AddRuleRequest
-	12, // 12: xray.app.router.command.RoutingService.RemoveRule:input_type -> xray.app.router.command.RemoveRuleRequest
-	0,  // 13: xray.app.router.command.RoutingService.SubscribeRoutingStats:output_type -> xray.app.router.command.RoutingContext
-	0,  // 14: xray.app.router.command.RoutingService.TestRoute:output_type -> xray.app.router.command.RoutingContext
-	7,  // 15: xray.app.router.command.RoutingService.GetBalancerInfo:output_type -> xray.app.router.command.GetBalancerInfoResponse
-	9,  // 16: xray.app.router.command.RoutingService.OverrideBalancerTarget:output_type -> xray.app.router.command.OverrideBalancerTargetResponse
-	11, // 17: xray.app.router.command.RoutingService.AddRule:output_type -> xray.app.router.command.AddRuleResponse
-	13, // 18: xray.app.router.command.RoutingService.RemoveRule:output_type -> xray.app.router.command.RemoveRuleResponse
-	13, // [13:19] is the sub-list for method output_type
-	7,  // [7:13] is the sub-list for method input_type
-	7,  // [7:7] is the sub-list for extension type_name
-	7,  // [7:7] is the sub-list for extension extendee
-	0,  // [0:7] is the sub-list for field type_name
+	20, // 6: xray.app.router.command.AddRuleRequest.config:type_name -> xray.common.serial.TypedMessage
+	15, // 7: xray.app.router.command.ListRuleResponse.rules:type_name -> xray.app.router.command.ListRuleItem
+	1,  // 8: xray.app.router.command.RoutingService.SubscribeRoutingStats:input_type -> xray.app.router.command.SubscribeRoutingStatsRequest
+	2,  // 9: xray.app.router.command.RoutingService.TestRoute:input_type -> xray.app.router.command.TestRouteRequest
+	6,  // 10: xray.app.router.command.RoutingService.GetBalancerInfo:input_type -> xray.app.router.command.GetBalancerInfoRequest
+	8,  // 11: xray.app.router.command.RoutingService.OverrideBalancerTarget:input_type -> xray.app.router.command.OverrideBalancerTargetRequest
+	10, // 12: xray.app.router.command.RoutingService.AddRule:input_type -> xray.app.router.command.AddRuleRequest
+	12, // 13: xray.app.router.command.RoutingService.RemoveRule:input_type -> xray.app.router.command.RemoveRuleRequest
+	14, // 14: xray.app.router.command.RoutingService.ListRule:input_type -> xray.app.router.command.ListRuleRequest
+	0,  // 15: xray.app.router.command.RoutingService.SubscribeRoutingStats:output_type -> xray.app.router.command.RoutingContext
+	0,  // 16: xray.app.router.command.RoutingService.TestRoute:output_type -> xray.app.router.command.RoutingContext
+	7,  // 17: xray.app.router.command.RoutingService.GetBalancerInfo:output_type -> xray.app.router.command.GetBalancerInfoResponse
+	9,  // 18: xray.app.router.command.RoutingService.OverrideBalancerTarget:output_type -> xray.app.router.command.OverrideBalancerTargetResponse
+	11, // 19: xray.app.router.command.RoutingService.AddRule:output_type -> xray.app.router.command.AddRuleResponse
+	13, // 20: xray.app.router.command.RoutingService.RemoveRule:output_type -> xray.app.router.command.RemoveRuleResponse
+	16, // 21: xray.app.router.command.RoutingService.ListRule:output_type -> xray.app.router.command.ListRuleResponse
+	15, // [15:22] is the sub-list for method output_type
+	8,  // [8:15] 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_router_command_command_proto_init() }
@@ -1075,9 +1119,9 @@ func file_app_router_command_command_proto_init() {
 	out := protoimpl.TypeBuilder{
 		File: protoimpl.DescBuilder{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
-			RawDescriptor: file_app_router_command_command_proto_rawDesc,
+			RawDescriptor: unsafe.Slice(unsafe.StringData(file_app_router_command_command_proto_rawDesc), len(file_app_router_command_command_proto_rawDesc)),
 			NumEnums:      0,
-			NumMessages:   16,
+			NumMessages:   19,
 			NumExtensions: 0,
 			NumServices:   1,
 		},
@@ -1086,7 +1130,6 @@ func file_app_router_command_command_proto_init() {
 		MessageInfos:      file_app_router_command_command_proto_msgTypes,
 	}.Build()
 	File_app_router_command_command_proto = out.File
-	file_app_router_command_command_proto_rawDesc = nil
 	file_app_router_command_command_proto_goTypes = nil
 	file_app_router_command_command_proto_depIdxs = nil
 }

app/router/command/command.proto

@@ -104,6 +104,17 @@ message RemoveRuleRequest {
 
 message RemoveRuleResponse {}
 
+message ListRuleRequest {}
+
+message ListRuleItem {
+  string tag = 1;
+  string ruleTag = 2;
+}
+
+message ListRuleResponse{
+  repeated ListRuleItem rules = 1;
+}
+
 service RoutingService {
   rpc SubscribeRoutingStats(SubscribeRoutingStatsRequest)
       returns (stream RoutingContext) {}
@@ -114,6 +125,8 @@ service RoutingService {
   
   rpc AddRule(AddRuleRequest) returns (AddRuleResponse) {}
   rpc RemoveRule(RemoveRuleRequest) returns (RemoveRuleResponse) {}
+
+  rpc ListRule(ListRuleRequest) returns (ListRuleResponse) {}
 }
 
 message Config {}

app/router/command/command_grpc.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
 // versions:
-// - protoc-gen-go-grpc v1.5.1
-// - protoc             v5.28.2
+// - protoc-gen-go-grpc v1.6.0
+// - protoc             v6.33.2
 // source: app/router/command/command.proto
 
 package command
@@ -25,6 +25,7 @@ const (
 	RoutingService_OverrideBalancerTarget_FullMethodName = "/xray.app.router.command.RoutingService/OverrideBalancerTarget"
 	RoutingService_AddRule_FullMethodName                = "/xray.app.router.command.RoutingService/AddRule"
 	RoutingService_RemoveRule_FullMethodName             = "/xray.app.router.command.RoutingService/RemoveRule"
+	RoutingService_ListRule_FullMethodName               = "/xray.app.router.command.RoutingService/ListRule"
 )
 
 // RoutingServiceClient is the client API for RoutingService service.
@@ -37,6 +38,7 @@ type RoutingServiceClient interface {
 	OverrideBalancerTarget(ctx context.Context, in *OverrideBalancerTargetRequest, opts ...grpc.CallOption) (*OverrideBalancerTargetResponse, error)
 	AddRule(ctx context.Context, in *AddRuleRequest, opts ...grpc.CallOption) (*AddRuleResponse, error)
 	RemoveRule(ctx context.Context, in *RemoveRuleRequest, opts ...grpc.CallOption) (*RemoveRuleResponse, error)
+	ListRule(ctx context.Context, in *ListRuleRequest, opts ...grpc.CallOption) (*ListRuleResponse, error)
 }
 
 type routingServiceClient struct {
@@ -116,6 +118,16 @@ func (c *routingServiceClient) RemoveRule(ctx context.Context, in *RemoveRuleReq
 	return out, nil
 }
 
+func (c *routingServiceClient) ListRule(ctx context.Context, in *ListRuleRequest, opts ...grpc.CallOption) (*ListRuleResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(ListRuleResponse)
+	err := c.cc.Invoke(ctx, RoutingService_ListRule_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 // RoutingServiceServer is the server API for RoutingService service.
 // All implementations must embed UnimplementedRoutingServiceServer
 // for forward compatibility.
@@ -126,6 +138,7 @@ type RoutingServiceServer interface {
 	OverrideBalancerTarget(context.Context, *OverrideBalancerTargetRequest) (*OverrideBalancerTargetResponse, error)
 	AddRule(context.Context, *AddRuleRequest) (*AddRuleResponse, error)
 	RemoveRule(context.Context, *RemoveRuleRequest) (*RemoveRuleResponse, error)
+	ListRule(context.Context, *ListRuleRequest) (*ListRuleResponse, error)
 	mustEmbedUnimplementedRoutingServiceServer()
 }
 
@@ -137,22 +150,25 @@ type RoutingServiceServer interface {
 type UnimplementedRoutingServiceServer struct{}
 
 func (UnimplementedRoutingServiceServer) SubscribeRoutingStats(*SubscribeRoutingStatsRequest, grpc.ServerStreamingServer[RoutingContext]) error {
-	return status.Errorf(codes.Unimplemented, "method SubscribeRoutingStats not implemented")
+	return status.Error(codes.Unimplemented, "method SubscribeRoutingStats not implemented")
 }
 func (UnimplementedRoutingServiceServer) TestRoute(context.Context, *TestRouteRequest) (*RoutingContext, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method TestRoute not implemented")
+	return nil, status.Error(codes.Unimplemented, "method TestRoute not implemented")
 }
 func (UnimplementedRoutingServiceServer) GetBalancerInfo(context.Context, *GetBalancerInfoRequest) (*GetBalancerInfoResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method GetBalancerInfo not implemented")
+	return nil, status.Error(codes.Unimplemented, "method GetBalancerInfo not implemented")
 }
 func (UnimplementedRoutingServiceServer) OverrideBalancerTarget(context.Context, *OverrideBalancerTargetRequest) (*OverrideBalancerTargetResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method OverrideBalancerTarget not implemented")
+	return nil, status.Error(codes.Unimplemented, "method OverrideBalancerTarget not implemented")
 }
 func (UnimplementedRoutingServiceServer) AddRule(context.Context, *AddRuleRequest) (*AddRuleResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method AddRule not implemented")
+	return nil, status.Error(codes.Unimplemented, "method AddRule not implemented")
 }
 func (UnimplementedRoutingServiceServer) RemoveRule(context.Context, *RemoveRuleRequest) (*RemoveRuleResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method RemoveRule not implemented")
+	return nil, status.Error(codes.Unimplemented, "method RemoveRule not implemented")
+}
+func (UnimplementedRoutingServiceServer) ListRule(context.Context, *ListRuleRequest) (*ListRuleResponse, error) {
+	return nil, status.Error(codes.Unimplemented, "method ListRule not implemented")
 }
 func (UnimplementedRoutingServiceServer) mustEmbedUnimplementedRoutingServiceServer() {}
 func (UnimplementedRoutingServiceServer) testEmbeddedByValue()                        {}
@@ -165,7 +181,7 @@ type UnsafeRoutingServiceServer interface {
 }
 
 func RegisterRoutingServiceServer(s grpc.ServiceRegistrar, srv RoutingServiceServer) {
-	// If the following call pancis, it indicates UnimplementedRoutingServiceServer was
+	// If the following call panics, it indicates UnimplementedRoutingServiceServer was
 	// embedded by pointer and is nil.  This will cause panics if an
 	// unimplemented method is ever invoked, so we test this at initialization
 	// time to prevent it from happening at runtime later due to I/O.
@@ -276,6 +292,24 @@ func _RoutingService_RemoveRule_Handler(srv interface{}, ctx context.Context, de
 	return interceptor(ctx, in, info, handler)
 }
 
+func _RoutingService_ListRule_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(ListRuleRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(RoutingServiceServer).ListRule(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: RoutingService_ListRule_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(RoutingServiceServer).ListRule(ctx, req.(*ListRuleRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 // RoutingService_ServiceDesc is the grpc.ServiceDesc for RoutingService service.
 // It's only intended for direct use with grpc.RegisterService,
 // and not to be introspected or modified (even as a copy)
@@ -303,6 +337,10 @@ var RoutingService_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "RemoveRule",
 			Handler:    _RoutingService_RemoveRule_Handler,
 		},
+		{
+			MethodName: "ListRule",
+			Handler:    _RoutingService_ListRule_Handler,
+		},
 	},
 	Streams: []grpc.StreamDesc{
 		{

app/router/condition.go

@@ -1,7 +1,11 @@
 package router
 
 import (
+	"context"
+	"os"
+	"path/filepath"
 	"regexp"
+	"slices"
 	"strings"
 
 	"github.com/xtls/xray-core/common/errors"
@@ -47,34 +51,23 @@ var matcherTypeMap = map[Domain_Type]strmatcher.Type{
 	Domain_Full:   strmatcher.Full,
 }
 
-func domainToMatcher(domain *Domain) (strmatcher.Matcher, error) {
-	matcherType, f := matcherTypeMap[domain.Type]
-	if !f {
-		return nil, errors.New("unsupported domain type", domain.Type)
-	}
-
-	matcher, err := matcherType.New(domain.Value)
-	if err != nil {
-		return nil, errors.New("failed to create domain matcher").Base(err)
-	}
-
-	return matcher, nil
-}
-
 type DomainMatcher struct {
 	matchers strmatcher.IndexMatcher
 }
 
 func NewMphMatcherGroup(domains []*Domain) (*DomainMatcher, error) {
 	g := strmatcher.NewMphMatcherGroup()
-	for _, d := range domains {
+	for i, d := range domains {
+		domains[i] = nil
 		matcherType, f := matcherTypeMap[d.Type]
 		if !f {
-			return nil, errors.New("unsupported domain type", d.Type)
+			errors.LogError(context.Background(), "ignore unsupported domain type ", d.Type, " of rule ", d.Value)
+			continue
 		}
 		_, err := g.AddPattern(d.Value, matcherType)
 		if err != nil {
-			return nil, err
+			errors.LogErrorInner(context.Background(), err, "ignore domain rule ", d.Type, " ", d.Value)
+			continue
 		}
 	}
 	g.Build()
@@ -96,61 +89,53 @@ func (m *DomainMatcher) Apply(ctx routing.Context) bool {
 	return m.ApplyDomain(domain)
 }
 
-type MultiGeoIPMatcher struct {
-	matchers []*GeoIPMatcher
-	asType   string // local, source, target
+type MatcherAsType byte
+
+const (
+	MatcherAsType_Local MatcherAsType = iota
+	MatcherAsType_Source
+	MatcherAsType_Target
+	MatcherAsType_VlessRoute // for port
+)
+
+type IPMatcher struct {
+	matcher GeoIPMatcher
+	asType  MatcherAsType
 }
 
-func NewMultiGeoIPMatcher(geoips []*GeoIP, asType string) (*MultiGeoIPMatcher, error) {
-	var matchers []*GeoIPMatcher
-	for _, geoip := range geoips {
-		matcher, err := GlobalGeoIPContainer.Add(geoip)
-		if err != nil {
-			return nil, err
-		}
-		matchers = append(matchers, matcher)
+func NewIPMatcher(geoips []*GeoIP, asType MatcherAsType) (*IPMatcher, error) {
+	matcher, err := BuildOptimizedGeoIPMatcher(geoips...)
+	if err != nil {
+		return nil, err
 	}
-
-	matcher := &MultiGeoIPMatcher{
-		matchers: matchers,
-		asType:   asType,
-	}
-
-	return matcher, nil
+	return &IPMatcher{matcher: matcher, asType: asType}, nil
 }
 
 // Apply implements Condition.
-func (m *MultiGeoIPMatcher) Apply(ctx routing.Context) bool {
+func (m *IPMatcher) Apply(ctx routing.Context) bool {
 	var ips []net.IP
 
 	switch m.asType {
-	case "local":
+	case MatcherAsType_Local:
 		ips = ctx.GetLocalIPs()
-	case "source":
+	case MatcherAsType_Source:
 		ips = ctx.GetSourceIPs()
-	case "target":
+	case MatcherAsType_Target:
 		ips = ctx.GetTargetIPs()
 	default:
-		panic("unreachable, asType should be local or source or target")
+		panic("unk asType")
 	}
 
-	for _, ip := range ips {
-		for _, matcher := range m.matchers {
-			if matcher.Match(ip) {
-				return true
-			}
-		}
-	}
-	return false
+	return m.matcher.AnyMatch(ips)
 }
 
 type PortMatcher struct {
 	port   net.MemoryPortList
-	asType string // local, source, target
+	asType MatcherAsType
 }
 
 // NewPortMatcher create a new port matcher that can match source or local or destination port
-func NewPortMatcher(list *net.PortList, asType string) *PortMatcher {
+func NewPortMatcher(list *net.PortList, asType MatcherAsType) *PortMatcher {
 	return &PortMatcher{
 		port:   net.PortListFromProto(list),
 		asType: asType,
@@ -160,18 +145,17 @@ func NewPortMatcher(list *net.PortList, asType string) *PortMatcher {
 // Apply implements Condition.
 func (v *PortMatcher) Apply(ctx routing.Context) bool {
 	switch v.asType {
-	case "local":
+	case MatcherAsType_Local:
 		return v.port.Contains(ctx.GetLocalPort())
-	case "source":
+	case MatcherAsType_Source:
 		return v.port.Contains(ctx.GetSourcePort())
-	case "target":
+	case MatcherAsType_Target:
 		return v.port.Contains(ctx.GetTargetPort())
-	case "vlessRoute":
+	case MatcherAsType_VlessRoute:
 		return v.port.Contains(ctx.GetVlessRoute())
 	default:
-		panic("unreachable, asType should be local or source or target")
+		panic("unk asType")
 	}
-
 }
 
 type NetworkMatcher struct {
@@ -325,3 +309,96 @@ func (m *AttributeMatcher) Apply(ctx routing.Context) bool {
 	}
 	return m.Match(attributes)
 }
+
+type ProcessNameMatcher struct {
+	ProcessNames  []string
+	AbsPaths      []string
+	Folders       []string
+	MatchXraySelf bool
+}
+
+func NewProcessNameMatcher(names []string) *ProcessNameMatcher {
+	processNames := []string{}
+	folders := []string{}
+	absPaths := []string{}
+	matchXraySelf := false
+	for _, name := range names {
+		if name == "self/" {
+			matchXraySelf = true
+			continue
+		}
+		// replace xray/ with self executable path
+		if name == "xray/" {
+			xrayPath, err := os.Executable()
+			if err != nil {
+				errors.LogError(context.Background(), "Failed to get xray executable path: ", err)
+				continue
+			}
+			name = xrayPath
+		}
+		name := filepath.ToSlash(name)
+		// /usr/bin/
+		if strings.HasSuffix(name, "/") {
+			folders = append(folders, name)
+			continue
+		}
+		// /usr/bin/curl
+		if strings.Contains(name, "/") {
+			absPaths = append(absPaths, name)
+			continue
+		}
+		// curl.exe or curl
+		processNames = append(processNames, strings.TrimSuffix(name, ".exe"))
+	}
+	return &ProcessNameMatcher{
+		ProcessNames:  processNames,
+		AbsPaths:      absPaths,
+		Folders:       folders,
+		MatchXraySelf: matchXraySelf,
+	}
+}
+
+func (m *ProcessNameMatcher) Apply(ctx routing.Context) bool {
+	if len(ctx.GetSourceIPs()) == 0 {
+		return false
+	}
+	srcPort := ctx.GetSourcePort().String()
+	srcIP := ctx.GetSourceIPs()[0].String()
+	var network string
+	switch ctx.GetNetwork() {
+	case net.Network_TCP:
+		network = "tcp"
+	case net.Network_UDP:
+		network = "udp"
+	default:
+		return false
+	}
+	src, err := net.ParseDestination(strings.Join([]string{network, srcIP, srcPort}, ":"))
+	if err != nil {
+		return false
+	}
+	pid, name, absPath, err := net.FindProcess(src)
+	if err != nil {
+		if err != net.ErrNotLocal {
+			errors.LogError(context.Background(), "Unables to find local process name: ", err)
+		}
+		return false
+	}
+	if m.MatchXraySelf {
+		if pid == os.Getpid() {
+			return true
+		}
+	}
+	if slices.Contains(m.ProcessNames, name) {
+		return true
+	}
+	if slices.Contains(m.AbsPaths, absPath) {
+		return true
+	}
+	for _, f := range m.Folders {
+		if strings.HasPrefix(absPath, f) {
+			return true
+		}
+	}
+	return false
+}

app/router/condition_geoip_test.go

@@ -35,33 +35,6 @@ func getAssetPath(file string) (string, error) {
 	return path, nil
 }
 
-func TestGeoIPMatcherContainer(t *testing.T) {
-	container := &router.GeoIPMatcherContainer{}
-
-	m1, err := container.Add(&router.GeoIP{
-		CountryCode: "CN",
-	})
-	common.Must(err)
-
-	m2, err := container.Add(&router.GeoIP{
-		CountryCode: "US",
-	})
-	common.Must(err)
-
-	m3, err := container.Add(&router.GeoIP{
-		CountryCode: "CN",
-	})
-	common.Must(err)
-
-	if m1 != m3 {
-		t.Error("expect same matcher for same geoip, but not")
-	}
-
-	if m1 == m2 {
-		t.Error("expect different matcher for different geoip, but actually same")
-	}
-}
-
 func TestGeoIPMatcher(t *testing.T) {
 	cidrList := []*router.CIDR{
 		{Ip: []byte{0, 0, 0, 0}, Prefix: 8},
@@ -80,8 +53,10 @@ func TestGeoIPMatcher(t *testing.T) {
 		{Ip: []byte{91, 108, 4, 0}, Prefix: 16},
 	}
 
-	matcher := &router.GeoIPMatcher{}
-	common.Must(matcher.Init(cidrList))
+	matcher, err := router.BuildOptimizedGeoIPMatcher(&router.GeoIP{
+		Cidr: cidrList,
+	})
+	common.Must(err)
 
 	testCases := []struct {
 		Input  string
@@ -140,8 +115,10 @@ func TestGeoIPMatcherRegression(t *testing.T) {
 		{Ip: []byte{98, 108, 20, 0}, Prefix: 23},
 	}
 
-	matcher := &router.GeoIPMatcher{}
-	common.Must(matcher.Init(cidrList))
+	matcher, err := router.BuildOptimizedGeoIPMatcher(&router.GeoIP{
+		Cidr: cidrList,
+	})
+	common.Must(err)
 
 	testCases := []struct {
 		Input  string
@@ -171,9 +148,11 @@ func TestGeoIPReverseMatcher(t *testing.T) {
 		{Ip: []byte{8, 8, 8, 8}, Prefix: 32},
 		{Ip: []byte{91, 108, 4, 0}, Prefix: 16},
 	}
-	matcher := &router.GeoIPMatcher{}
-	matcher.SetReverseMatch(true) // Reverse match
-	common.Must(matcher.Init(cidrList))
+	matcher, err := router.BuildOptimizedGeoIPMatcher(&router.GeoIP{
+		Cidr: cidrList,
+	})
+	common.Must(err)
+	matcher.SetReverse(true) // Reverse match
 
 	testCases := []struct {
 		Input  string
@@ -206,8 +185,10 @@ func TestGeoIPMatcher4CN(t *testing.T) {
 	ips, err := loadGeoIP("CN")
 	common.Must(err)
 
-	matcher := &router.GeoIPMatcher{}
-	common.Must(matcher.Init(ips))
+	matcher, err := router.BuildOptimizedGeoIPMatcher(&router.GeoIP{
+		Cidr: ips,
+	})
+	common.Must(err)
 
 	if matcher.Match([]byte{8, 8, 8, 8}) {
 		t.Error("expect CN geoip doesn't contain 8.8.8.8, but actually does")
@@ -218,8 +199,10 @@ func TestGeoIPMatcher6US(t *testing.T) {
 	ips, err := loadGeoIP("US")
 	common.Must(err)
 
-	matcher := &router.GeoIPMatcher{}
-	common.Must(matcher.Init(ips))
+	matcher, err := router.BuildOptimizedGeoIPMatcher(&router.GeoIP{
+		Cidr: ips,
+	})
+	common.Must(err)
 
 	if !matcher.Match(net.ParseAddress("2001:4860:4860::8888").IP()) {
 		t.Error("expect US geoip contain 2001:4860:4860::8888, but actually not")
@@ -254,8 +237,10 @@ func BenchmarkGeoIPMatcher4CN(b *testing.B) {
 	ips, err := loadGeoIP("CN")
 	common.Must(err)
 
-	matcher := &router.GeoIPMatcher{}
-	common.Must(matcher.Init(ips))
+	matcher, err := router.BuildOptimizedGeoIPMatcher(&router.GeoIP{
+		Cidr: ips,
+	})
+	common.Must(err)
 
 	b.ResetTimer()
 
@@ -268,8 +253,10 @@ func BenchmarkGeoIPMatcher6US(b *testing.B) {
 	ips, err := loadGeoIP("US")
 	common.Must(err)
 
-	matcher := &router.GeoIPMatcher{}
-	common.Must(matcher.Init(ips))
+	matcher, err := router.BuildOptimizedGeoIPMatcher(&router.GeoIP{
+		Cidr: ips,
+	})
+	common.Must(err)
 
 	b.ResetTimer()
 

app/router/condition_test.go

@@ -447,7 +447,7 @@ func BenchmarkMultiGeoIPMatcher(b *testing.B) {
 		})
 	}
 
-	matcher, err := NewMultiGeoIPMatcher(geoips, "target")
+	matcher, err := NewIPMatcher(geoips, MatcherAsType_Target)
 	common.Must(err)
 
 	ctx := withOutbound(&session.Outbound{Target: net.TCPDestination(net.ParseAddress("8.8.8.8"), 80)})

app/router/config.go

@@ -3,6 +3,7 @@ package router
 import (
 	"context"
 	"regexp"
+	"runtime"
 	"strings"
 
 	"github.com/xtls/xray-core/common/errors"
@@ -32,72 +33,38 @@ func (r *Rule) Apply(ctx routing.Context) bool {
 func (rr *RoutingRule) BuildCondition() (Condition, error) {
 	conds := NewConditionChan()
 
-	if len(rr.Domain) > 0 {
-		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, "target"))
-	}
-
-	if rr.SourcePortList != nil {
-		conds.Add(NewPortMatcher(rr.SourcePortList, "source"))
-	}
-
-	if rr.LocalPortList != nil {
-		conds.Add(NewPortMatcher(rr.LocalPortList, "local"))
-	}
-
 	if len(rr.Networks) > 0 {
 		conds.Add(NewNetworkMatcher(rr.Networks))
 	}
 
-	if len(rr.Geoip) > 0 {
-		cond, err := NewMultiGeoIPMatcher(rr.Geoip, "target")
-		if err != nil {
-			return nil, err
-		}
-		conds.Add(cond)
-	}
-
-	if len(rr.SourceGeoip) > 0 {
-		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))
 	}
 
+	if rr.PortList != nil {
+		conds.Add(NewPortMatcher(rr.PortList, MatcherAsType_Target))
+	}
+
+	if rr.SourcePortList != nil {
+		conds.Add(NewPortMatcher(rr.SourcePortList, MatcherAsType_Source))
+	}
+
+	if rr.LocalPortList != nil {
+		conds.Add(NewPortMatcher(rr.LocalPortList, MatcherAsType_Local))
+	}
+
+	if rr.VlessRouteList != nil {
+		conds.Add(NewPortMatcher(rr.VlessRouteList, MatcherAsType_VlessRoute))
+	}
+
+	if len(rr.UserEmail) > 0 {
+		conds.Add(NewUserMatcher(rr.UserEmail))
+	}
+
 	if len(rr.Attributes) > 0 {
 		configuredKeys := make(map[string]*regexp.Regexp)
 		for key, value := range rr.Attributes {
@@ -106,6 +73,52 @@ func (rr *RoutingRule) BuildCondition() (Condition, error) {
 		conds.Add(&AttributeMatcher{configuredKeys})
 	}
 
+	if len(rr.Geoip) > 0 {
+		cond, err := NewIPMatcher(rr.Geoip, MatcherAsType_Target)
+		if err != nil {
+			return nil, err
+		}
+		conds.Add(cond)
+		rr.Geoip = nil
+		runtime.GC()
+	}
+
+	if len(rr.SourceGeoip) > 0 {
+		cond, err := NewIPMatcher(rr.SourceGeoip, MatcherAsType_Source)
+		if err != nil {
+			return nil, err
+		}
+		conds.Add(cond)
+		rr.SourceGeoip = nil
+		runtime.GC()
+	}
+
+	if len(rr.LocalGeoip) > 0 {
+		cond, err := NewIPMatcher(rr.LocalGeoip, MatcherAsType_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")
+		rr.LocalGeoip = nil
+		runtime.GC()
+	}
+
+	if len(rr.Domain) > 0 {
+		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)
+		rr.Domain = nil
+		runtime.GC()
+	}
+
+	if len(rr.Process) > 0 {
+		conds.Add(NewProcessNameMatcher(rr.Process))
+	}
+
 	if conds.Len() == 0 {
 		return nil, errors.New("this rule has no effective fields").AtWarning()
 	}

app/router/config.pb.go

@@ -84,8 +84,6 @@ type Config_DomainStrategy int32
 const (
 	// Use domain as is.
 	Config_AsIs Config_DomainStrategy = 0
-	// Always resolve IP for domains.
-	Config_UseIp Config_DomainStrategy = 1
 	// Resolve to IP if the domain doesn't match any rules.
 	Config_IpIfNonMatch Config_DomainStrategy = 2
 	// Resolve to IP if any rule requires IP matching.
@@ -96,13 +94,11 @@ const (
 var (
 	Config_DomainStrategy_name = map[int32]string{
 		0: "AsIs",
-		1: "UseIp",
 		2: "IpIfNonMatch",
 		3: "IpOnDemand",
 	}
 	Config_DomainStrategy_value = map[string]int32{
 		"AsIs":         0,
-		"UseIp":        1,
 		"IpIfNonMatch": 2,
 		"IpOnDemand":   3,
 	}
@@ -494,6 +490,7 @@ type RoutingRule struct {
 	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"`
+	Process        []string          `protobuf:"bytes,21,rep,name=process,proto3" json:"process,omitempty"`
 }
 
 func (x *RoutingRule) Reset() {
@@ -645,6 +642,13 @@ func (x *RoutingRule) GetVlessRouteList() *net.PortList {
 	return nil
 }
 
+func (x *RoutingRule) GetProcess() []string {
+	if x != nil {
+		return x.Process
+	}
+	return nil
+}
+
 type isRoutingRule_TargetTag interface {
 	isRoutingRule_TargetTag()
 }
@@ -1085,7 +1089,7 @@ var file_app_router_config_proto_rawDesc = []byte{
 	0x6f, 0x53, 0x69, 0x74, 0x65, 0x4c, 0x69, 0x73, 0x74, 0x12, 0x2e, 0x0a, 0x05, 0x65, 0x6e, 0x74,
 	0x72, 0x79, 0x18, 0x01, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x18, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e,
 	0x61, 0x70, 0x70, 0x2e, 0x72, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x2e, 0x47, 0x65, 0x6f, 0x53, 0x69,
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+	0x74, 0x65, 0x52, 0x05, 0x65, 0x6e, 0x74, 0x72, 0x79, 0x22, 0x82, 0x07, 0x0a, 0x0b, 0x52, 0x6f,
 	0x75, 0x74, 0x69, 0x6e, 0x67, 0x52, 0x75, 0x6c, 0x65, 0x12, 0x12, 0x0a, 0x03, 0x74, 0x61, 0x67,
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@@ -1135,67 +1139,68 @@ var file_app_router_config_proto_rawDesc = []byte{
 	0x65, 0x5f, 0x6c, 0x69, 0x73, 0x74, 0x18, 0x14, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x19, 0x2e, 0x78,
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+	0x41, 0x70, 0x70, 0x2e, 0x52, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74,
+	0x6f, 0x33,
 }
 
 var (

app/router/config.proto

@@ -113,6 +113,7 @@ message RoutingRule {
   xray.common.net.PortList local_port_list = 18;
 
   xray.common.net.PortList vless_route_list = 20;
+  repeated string process = 21;
 }
 
 message BalancingRule {
@@ -147,8 +148,8 @@ message Config {
     // Use domain as is.
     AsIs = 0;
 
-    // Always resolve IP for domains.
-    UseIp = 1;
+    // [Deprecated] Always resolve IP for domains.
+    // UseIp = 1;
 
     // Resolve to IP if the domain doesn't match any rules.
     IpIfNonMatch = 2;

app/router/router.go

@@ -2,7 +2,7 @@ package router
 
 import (
 	"context"
-	sync "sync"
+	"sync"
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
@@ -181,6 +181,21 @@ func (r *Router) RemoveRule(tag string) error {
 	return errors.New("empty tag name!")
 
 }
+
+// ListRule implements routing.Router
+func (r *Router) ListRule() []routing.Route {
+	r.mu.Lock()
+	defer r.mu.Unlock()
+	ruleList := make([]routing.Route, 0)
+	for _, rule := range r.rules {
+		ruleList = append(ruleList, &Route{
+			outboundTag: rule.Tag,
+			ruleTag:     rule.RuleTag,
+		})
+	}
+	return ruleList
+}
+
 func (r *Router) pickRouteInternal(ctx routing.Context) (*Rule, routing.Context, error) {
 	// SkipDNSResolve is set from DNS module.
 	// the DOH remote server maybe a domain name,

app/stats/command/command.go

@@ -80,6 +80,12 @@ func (s *statsServer) GetStatsOnlineIpList(ctx context.Context, request *GetStat
 	}, nil
 }
 
+func (s *statsServer) GetAllOnlineUsers(ctx context.Context, request *GetAllOnlineUsersRequest) (*GetAllOnlineUsersResponse, error) {
+	return &GetAllOnlineUsersResponse{
+		Users: s.stats.GetAllOnlineUsers(),
+	}, 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

@@ -1,8 +1,8 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.35.1
-// 	protoc        v5.28.2
-// source: app/stats/command/command.proto
+// 	protoc-gen-go v1.36.8
+// 	protoc        v6.32.0
+// source: command.proto
 
 package command
 
@@ -11,6 +11,7 @@ import (
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
 	sync "sync"
+	unsafe "unsafe"
 )
 
 const (
@@ -21,19 +22,18 @@ const (
 )
 
 type GetStatsRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
+	state protoimpl.MessageState `protogen:"open.v1"`
 	// Name of the stat counter.
 	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
 	// Whether or not to reset the counter to fetching its value.
-	Reset_ bool `protobuf:"varint,2,opt,name=reset,proto3" json:"reset,omitempty"`
+	Reset_        bool `protobuf:"varint,2,opt,name=reset,proto3" json:"reset,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
 }
 
 func (x *GetStatsRequest) Reset() {
 	*x = GetStatsRequest{}
-	mi := &file_app_stats_command_command_proto_msgTypes[0]
+	mi := &file_command_proto_msgTypes[0]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -45,7 +45,7 @@ func (x *GetStatsRequest) String() string {
 func (*GetStatsRequest) ProtoMessage() {}
 
 func (x *GetStatsRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_app_stats_command_command_proto_msgTypes[0]
+	mi := &file_command_proto_msgTypes[0]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -58,7 +58,7 @@ func (x *GetStatsRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use GetStatsRequest.ProtoReflect.Descriptor instead.
 func (*GetStatsRequest) Descriptor() ([]byte, []int) {
-	return file_app_stats_command_command_proto_rawDescGZIP(), []int{0}
+	return file_command_proto_rawDescGZIP(), []int{0}
 }
 
 func (x *GetStatsRequest) GetName() string {
@@ -76,17 +76,16 @@ func (x *GetStatsRequest) GetReset_() bool {
 }
 
 type Stat struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Name          string                 `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+	Value         int64                  `protobuf:"varint,2,opt,name=value,proto3" json:"value,omitempty"`
 	unknownFields protoimpl.UnknownFields
-
-	Name  string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
-	Value int64  `protobuf:"varint,2,opt,name=value,proto3" json:"value,omitempty"`
+	sizeCache     protoimpl.SizeCache
 }
 
 func (x *Stat) Reset() {
 	*x = Stat{}
-	mi := &file_app_stats_command_command_proto_msgTypes[1]
+	mi := &file_command_proto_msgTypes[1]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -98,7 +97,7 @@ func (x *Stat) String() string {
 func (*Stat) ProtoMessage() {}
 
 func (x *Stat) ProtoReflect() protoreflect.Message {
-	mi := &file_app_stats_command_command_proto_msgTypes[1]
+	mi := &file_command_proto_msgTypes[1]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -111,7 +110,7 @@ func (x *Stat) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Stat.ProtoReflect.Descriptor instead.
 func (*Stat) Descriptor() ([]byte, []int) {
-	return file_app_stats_command_command_proto_rawDescGZIP(), []int{1}
+	return file_command_proto_rawDescGZIP(), []int{1}
 }
 
 func (x *Stat) GetName() string {
@@ -129,16 +128,15 @@ func (x *Stat) GetValue() int64 {
 }
 
 type GetStatsResponse struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Stat          *Stat                  `protobuf:"bytes,1,opt,name=stat,proto3" json:"stat,omitempty"`
 	unknownFields protoimpl.UnknownFields
-
-	Stat *Stat `protobuf:"bytes,1,opt,name=stat,proto3" json:"stat,omitempty"`
+	sizeCache     protoimpl.SizeCache
 }
 
 func (x *GetStatsResponse) Reset() {
 	*x = GetStatsResponse{}
-	mi := &file_app_stats_command_command_proto_msgTypes[2]
+	mi := &file_command_proto_msgTypes[2]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -150,7 +148,7 @@ func (x *GetStatsResponse) String() string {
 func (*GetStatsResponse) ProtoMessage() {}
 
 func (x *GetStatsResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_app_stats_command_command_proto_msgTypes[2]
+	mi := &file_command_proto_msgTypes[2]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -163,7 +161,7 @@ func (x *GetStatsResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use GetStatsResponse.ProtoReflect.Descriptor instead.
 func (*GetStatsResponse) Descriptor() ([]byte, []int) {
-	return file_app_stats_command_command_proto_rawDescGZIP(), []int{2}
+	return file_command_proto_rawDescGZIP(), []int{2}
 }
 
 func (x *GetStatsResponse) GetStat() *Stat {
@@ -174,17 +172,16 @@ func (x *GetStatsResponse) GetStat() *Stat {
 }
 
 type QueryStatsRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Pattern       string                 `protobuf:"bytes,1,opt,name=pattern,proto3" json:"pattern,omitempty"`
+	Reset_        bool                   `protobuf:"varint,2,opt,name=reset,proto3" json:"reset,omitempty"`
 	unknownFields protoimpl.UnknownFields
-
-	Pattern string `protobuf:"bytes,1,opt,name=pattern,proto3" json:"pattern,omitempty"`
-	Reset_  bool   `protobuf:"varint,2,opt,name=reset,proto3" json:"reset,omitempty"`
+	sizeCache     protoimpl.SizeCache
 }
 
 func (x *QueryStatsRequest) Reset() {
 	*x = QueryStatsRequest{}
-	mi := &file_app_stats_command_command_proto_msgTypes[3]
+	mi := &file_command_proto_msgTypes[3]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -196,7 +193,7 @@ func (x *QueryStatsRequest) String() string {
 func (*QueryStatsRequest) ProtoMessage() {}
 
 func (x *QueryStatsRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_app_stats_command_command_proto_msgTypes[3]
+	mi := &file_command_proto_msgTypes[3]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -209,7 +206,7 @@ func (x *QueryStatsRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use QueryStatsRequest.ProtoReflect.Descriptor instead.
 func (*QueryStatsRequest) Descriptor() ([]byte, []int) {
-	return file_app_stats_command_command_proto_rawDescGZIP(), []int{3}
+	return file_command_proto_rawDescGZIP(), []int{3}
 }
 
 func (x *QueryStatsRequest) GetPattern() string {
@@ -227,16 +224,15 @@ func (x *QueryStatsRequest) GetReset_() bool {
 }
 
 type QueryStatsResponse struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Stat          []*Stat                `protobuf:"bytes,1,rep,name=stat,proto3" json:"stat,omitempty"`
 	unknownFields protoimpl.UnknownFields
-
-	Stat []*Stat `protobuf:"bytes,1,rep,name=stat,proto3" json:"stat,omitempty"`
+	sizeCache     protoimpl.SizeCache
 }
 
 func (x *QueryStatsResponse) Reset() {
 	*x = QueryStatsResponse{}
-	mi := &file_app_stats_command_command_proto_msgTypes[4]
+	mi := &file_command_proto_msgTypes[4]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -248,7 +244,7 @@ func (x *QueryStatsResponse) String() string {
 func (*QueryStatsResponse) ProtoMessage() {}
 
 func (x *QueryStatsResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_app_stats_command_command_proto_msgTypes[4]
+	mi := &file_command_proto_msgTypes[4]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -261,7 +257,7 @@ func (x *QueryStatsResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use QueryStatsResponse.ProtoReflect.Descriptor instead.
 func (*QueryStatsResponse) Descriptor() ([]byte, []int) {
-	return file_app_stats_command_command_proto_rawDescGZIP(), []int{4}
+	return file_command_proto_rawDescGZIP(), []int{4}
 }
 
 func (x *QueryStatsResponse) GetStat() []*Stat {
@@ -272,14 +268,14 @@ func (x *QueryStatsResponse) GetStat() []*Stat {
 }
 
 type SysStatsRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
+	state         protoimpl.MessageState `protogen:"open.v1"`
 	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
 }
 
 func (x *SysStatsRequest) Reset() {
 	*x = SysStatsRequest{}
-	mi := &file_app_stats_command_command_proto_msgTypes[5]
+	mi := &file_command_proto_msgTypes[5]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -291,7 +287,7 @@ func (x *SysStatsRequest) String() string {
 func (*SysStatsRequest) ProtoMessage() {}
 
 func (x *SysStatsRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_app_stats_command_command_proto_msgTypes[5]
+	mi := &file_command_proto_msgTypes[5]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -304,29 +300,28 @@ func (x *SysStatsRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use SysStatsRequest.ProtoReflect.Descriptor instead.
 func (*SysStatsRequest) Descriptor() ([]byte, []int) {
-	return file_app_stats_command_command_proto_rawDescGZIP(), []int{5}
+	return file_command_proto_rawDescGZIP(), []int{5}
 }
 
 type SysStatsResponse struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	NumGoroutine  uint32                 `protobuf:"varint,1,opt,name=NumGoroutine,proto3" json:"NumGoroutine,omitempty"`
+	NumGC         uint32                 `protobuf:"varint,2,opt,name=NumGC,proto3" json:"NumGC,omitempty"`
+	Alloc         uint64                 `protobuf:"varint,3,opt,name=Alloc,proto3" json:"Alloc,omitempty"`
+	TotalAlloc    uint64                 `protobuf:"varint,4,opt,name=TotalAlloc,proto3" json:"TotalAlloc,omitempty"`
+	Sys           uint64                 `protobuf:"varint,5,opt,name=Sys,proto3" json:"Sys,omitempty"`
+	Mallocs       uint64                 `protobuf:"varint,6,opt,name=Mallocs,proto3" json:"Mallocs,omitempty"`
+	Frees         uint64                 `protobuf:"varint,7,opt,name=Frees,proto3" json:"Frees,omitempty"`
+	LiveObjects   uint64                 `protobuf:"varint,8,opt,name=LiveObjects,proto3" json:"LiveObjects,omitempty"`
+	PauseTotalNs  uint64                 `protobuf:"varint,9,opt,name=PauseTotalNs,proto3" json:"PauseTotalNs,omitempty"`
+	Uptime        uint32                 `protobuf:"varint,10,opt,name=Uptime,proto3" json:"Uptime,omitempty"`
 	unknownFields protoimpl.UnknownFields
-
-	NumGoroutine uint32 `protobuf:"varint,1,opt,name=NumGoroutine,proto3" json:"NumGoroutine,omitempty"`
-	NumGC        uint32 `protobuf:"varint,2,opt,name=NumGC,proto3" json:"NumGC,omitempty"`
-	Alloc        uint64 `protobuf:"varint,3,opt,name=Alloc,proto3" json:"Alloc,omitempty"`
-	TotalAlloc   uint64 `protobuf:"varint,4,opt,name=TotalAlloc,proto3" json:"TotalAlloc,omitempty"`
-	Sys          uint64 `protobuf:"varint,5,opt,name=Sys,proto3" json:"Sys,omitempty"`
-	Mallocs      uint64 `protobuf:"varint,6,opt,name=Mallocs,proto3" json:"Mallocs,omitempty"`
-	Frees        uint64 `protobuf:"varint,7,opt,name=Frees,proto3" json:"Frees,omitempty"`
-	LiveObjects  uint64 `protobuf:"varint,8,opt,name=LiveObjects,proto3" json:"LiveObjects,omitempty"`
-	PauseTotalNs uint64 `protobuf:"varint,9,opt,name=PauseTotalNs,proto3" json:"PauseTotalNs,omitempty"`
-	Uptime       uint32 `protobuf:"varint,10,opt,name=Uptime,proto3" json:"Uptime,omitempty"`
+	sizeCache     protoimpl.SizeCache
 }
 
 func (x *SysStatsResponse) Reset() {
 	*x = SysStatsResponse{}
-	mi := &file_app_stats_command_command_proto_msgTypes[6]
+	mi := &file_command_proto_msgTypes[6]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -338,7 +333,7 @@ func (x *SysStatsResponse) String() string {
 func (*SysStatsResponse) ProtoMessage() {}
 
 func (x *SysStatsResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_app_stats_command_command_proto_msgTypes[6]
+	mi := &file_command_proto_msgTypes[6]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -351,7 +346,7 @@ func (x *SysStatsResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use SysStatsResponse.ProtoReflect.Descriptor instead.
 func (*SysStatsResponse) Descriptor() ([]byte, []int) {
-	return file_app_stats_command_command_proto_rawDescGZIP(), []int{6}
+	return file_command_proto_rawDescGZIP(), []int{6}
 }
 
 func (x *SysStatsResponse) GetNumGoroutine() uint32 {
@@ -425,17 +420,16 @@ func (x *SysStatsResponse) GetUptime() uint32 {
 }
 
 type GetStatsOnlineIpListResponse struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	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" protobuf_val:"varint,2,opt,name=value"`
 	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"`
+	sizeCache     protoimpl.SizeCache
 }
 
 func (x *GetStatsOnlineIpListResponse) Reset() {
 	*x = GetStatsOnlineIpListResponse{}
-	mi := &file_app_stats_command_command_proto_msgTypes[7]
+	mi := &file_command_proto_msgTypes[7]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -447,7 +441,7 @@ func (x *GetStatsOnlineIpListResponse) String() string {
 func (*GetStatsOnlineIpListResponse) ProtoMessage() {}
 
 func (x *GetStatsOnlineIpListResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_app_stats_command_command_proto_msgTypes[7]
+	mi := &file_command_proto_msgTypes[7]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -460,7 +454,7 @@ func (x *GetStatsOnlineIpListResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use GetStatsOnlineIpListResponse.ProtoReflect.Descriptor instead.
 func (*GetStatsOnlineIpListResponse) Descriptor() ([]byte, []int) {
-	return file_app_stats_command_command_proto_rawDescGZIP(), []int{7}
+	return file_command_proto_rawDescGZIP(), []int{7}
 }
 
 func (x *GetStatsOnlineIpListResponse) GetName() string {
@@ -477,15 +471,95 @@ func (x *GetStatsOnlineIpListResponse) GetIps() map[string]int64 {
 	return nil
 }
 
-type Config struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
+type GetAllOnlineUsersRequest struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
 	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *GetAllOnlineUsersRequest) Reset() {
+	*x = GetAllOnlineUsersRequest{}
+	mi := &file_command_proto_msgTypes[8]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *GetAllOnlineUsersRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GetAllOnlineUsersRequest) ProtoMessage() {}
+
+func (x *GetAllOnlineUsersRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_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 GetAllOnlineUsersRequest.ProtoReflect.Descriptor instead.
+func (*GetAllOnlineUsersRequest) Descriptor() ([]byte, []int) {
+	return file_command_proto_rawDescGZIP(), []int{8}
+}
+
+type GetAllOnlineUsersResponse struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Users         []string               `protobuf:"bytes,1,rep,name=users,proto3" json:"users,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *GetAllOnlineUsersResponse) Reset() {
+	*x = GetAllOnlineUsersResponse{}
+	mi := &file_command_proto_msgTypes[9]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *GetAllOnlineUsersResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GetAllOnlineUsersResponse) ProtoMessage() {}
+
+func (x *GetAllOnlineUsersResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_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 GetAllOnlineUsersResponse.ProtoReflect.Descriptor instead.
+func (*GetAllOnlineUsersResponse) Descriptor() ([]byte, []int) {
+	return file_command_proto_rawDescGZIP(), []int{9}
+}
+
+func (x *GetAllOnlineUsersResponse) GetUsers() []string {
+	if x != nil {
+		return x.Users
+	}
+	return nil
+}
+
+type Config struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
 }
 
 func (x *Config) Reset() {
 	*x = Config{}
-	mi := &file_app_stats_command_command_proto_msgTypes[8]
+	mi := &file_command_proto_msgTypes[10]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -497,7 +571,7 @@ func (x *Config) String() string {
 func (*Config) ProtoMessage() {}
 
 func (x *Config) ProtoReflect() protoreflect.Message {
-	mi := &file_app_stats_command_command_proto_msgTypes[8]
+	mi := &file_command_proto_msgTypes[10]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -510,125 +584,76 @@ 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{8}
+	return file_command_proto_rawDescGZIP(), []int{10}
 }
 
-var File_app_stats_command_command_proto protoreflect.FileDescriptor
+var File_command_proto protoreflect.FileDescriptor
 
-var file_app_stats_command_command_proto_rawDesc = []byte{
-	0x0a, 0x1f, 0x61, 0x70, 0x70, 0x2f, 0x73, 0x74, 0x61, 0x74, 0x73, 0x2f, 0x63, 0x6f, 0x6d, 0x6d,
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-	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
-}
+const file_command_proto_rawDesc = "" +
+	"\n" +
+	"\rcommand.proto\x12\x16xray.app.stats.command\";\n" +
+	"\x0fGetStatsRequest\x12\x12\n" +
+	"\x04name\x18\x01 \x01(\tR\x04name\x12\x14\n" +
+	"\x05reset\x18\x02 \x01(\bR\x05reset\"0\n" +
+	"\x04Stat\x12\x12\n" +
+	"\x04name\x18\x01 \x01(\tR\x04name\x12\x14\n" +
+	"\x05value\x18\x02 \x01(\x03R\x05value\"D\n" +
+	"\x10GetStatsResponse\x120\n" +
+	"\x04stat\x18\x01 \x01(\v2\x1c.xray.app.stats.command.StatR\x04stat\"C\n" +
+	"\x11QueryStatsRequest\x12\x18\n" +
+	"\apattern\x18\x01 \x01(\tR\apattern\x12\x14\n" +
+	"\x05reset\x18\x02 \x01(\bR\x05reset\"F\n" +
+	"\x12QueryStatsResponse\x120\n" +
+	"\x04stat\x18\x01 \x03(\v2\x1c.xray.app.stats.command.StatR\x04stat\"\x11\n" +
+	"\x0fSysStatsRequest\"\xa2\x02\n" +
+	"\x10SysStatsResponse\x12\"\n" +
+	"\fNumGoroutine\x18\x01 \x01(\rR\fNumGoroutine\x12\x14\n" +
+	"\x05NumGC\x18\x02 \x01(\rR\x05NumGC\x12\x14\n" +
+	"\x05Alloc\x18\x03 \x01(\x04R\x05Alloc\x12\x1e\n" +
+	"\n" +
+	"TotalAlloc\x18\x04 \x01(\x04R\n" +
+	"TotalAlloc\x12\x10\n" +
+	"\x03Sys\x18\x05 \x01(\x04R\x03Sys\x12\x18\n" +
+	"\aMallocs\x18\x06 \x01(\x04R\aMallocs\x12\x14\n" +
+	"\x05Frees\x18\a \x01(\x04R\x05Frees\x12 \n" +
+	"\vLiveObjects\x18\b \x01(\x04R\vLiveObjects\x12\"\n" +
+	"\fPauseTotalNs\x18\t \x01(\x04R\fPauseTotalNs\x12\x16\n" +
+	"\x06Uptime\x18\n" +
+	" \x01(\rR\x06Uptime\"\xbb\x01\n" +
+	"\x1cGetStatsOnlineIpListResponse\x12\x12\n" +
+	"\x04name\x18\x01 \x01(\tR\x04name\x12O\n" +
+	"\x03ips\x18\x02 \x03(\v2=.xray.app.stats.command.GetStatsOnlineIpListResponse.IpsEntryR\x03ips\x1a6\n" +
+	"\bIpsEntry\x12\x10\n" +
+	"\x03key\x18\x01 \x01(\tR\x03key\x12\x14\n" +
+	"\x05value\x18\x02 \x01(\x03R\x05value:\x028\x01\"\x1a\n" +
+	"\x18GetAllOnlineUsersRequest\"1\n" +
+	"\x19GetAllOnlineUsersResponse\x12\x14\n" +
+	"\x05users\x18\x01 \x03(\tR\x05users\"\b\n" +
+	"\x06Config2\x96\x05\n" +
+	"\fStatsService\x12_\n" +
+	"\bGetStats\x12'.xray.app.stats.command.GetStatsRequest\x1a(.xray.app.stats.command.GetStatsResponse\"\x00\x12e\n" +
+	"\x0eGetStatsOnline\x12'.xray.app.stats.command.GetStatsRequest\x1a(.xray.app.stats.command.GetStatsResponse\"\x00\x12e\n" +
+	"\n" +
+	"QueryStats\x12).xray.app.stats.command.QueryStatsRequest\x1a*.xray.app.stats.command.QueryStatsResponse\"\x00\x12b\n" +
+	"\vGetSysStats\x12'.xray.app.stats.command.SysStatsRequest\x1a(.xray.app.stats.command.SysStatsResponse\"\x00\x12w\n" +
+	"\x14GetStatsOnlineIpList\x12'.xray.app.stats.command.GetStatsRequest\x1a4.xray.app.stats.command.GetStatsOnlineIpListResponse\"\x00\x12z\n" +
+	"\x11GetAllOnlineUsers\x120.xray.app.stats.command.GetAllOnlineUsersRequest\x1a1.xray.app.stats.command.GetAllOnlineUsersResponse\"\x00Bd\n" +
+	"\x1acom.xray.app.stats.commandP\x01Z+github.com/xtls/xray-core/app/stats/command\xaa\x02\x16Xray.App.Stats.Commandb\x06proto3"
 
 var (
-	file_app_stats_command_command_proto_rawDescOnce sync.Once
-	file_app_stats_command_command_proto_rawDescData = file_app_stats_command_command_proto_rawDesc
+	file_command_proto_rawDescOnce sync.Once
+	file_command_proto_rawDescData []byte
 )
 
-func file_app_stats_command_command_proto_rawDescGZIP() []byte {
-	file_app_stats_command_command_proto_rawDescOnce.Do(func() {
-		file_app_stats_command_command_proto_rawDescData = protoimpl.X.CompressGZIP(file_app_stats_command_command_proto_rawDescData)
+func file_command_proto_rawDescGZIP() []byte {
+	file_command_proto_rawDescOnce.Do(func() {
+		file_command_proto_rawDescData = protoimpl.X.CompressGZIP(unsafe.Slice(unsafe.StringData(file_command_proto_rawDesc), len(file_command_proto_rawDesc)))
 	})
-	return file_app_stats_command_command_proto_rawDescData
+	return file_command_proto_rawDescData
 }
 
-var file_app_stats_command_command_proto_msgTypes = make([]protoimpl.MessageInfo, 10)
-var file_app_stats_command_command_proto_goTypes = []any{
+var file_command_proto_msgTypes = make([]protoimpl.MessageInfo, 12)
+var file_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
@@ -637,51 +662,54 @@ var file_app_stats_command_command_proto_goTypes = []any{
 	(*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
+	(*GetAllOnlineUsersRequest)(nil),     // 8: xray.app.stats.command.GetAllOnlineUsersRequest
+	(*GetAllOnlineUsersResponse)(nil),    // 9: xray.app.stats.command.GetAllOnlineUsersResponse
+	(*Config)(nil),                       // 10: xray.app.stats.command.Config
+	nil,                                  // 11: 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
-	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
+var file_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
+	11, // 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
+	8,  // 8: xray.app.stats.command.StatsService.GetAllOnlineUsers:input_type -> xray.app.stats.command.GetAllOnlineUsersRequest
+	2,  // 9: xray.app.stats.command.StatsService.GetStats:output_type -> xray.app.stats.command.GetStatsResponse
+	2,  // 10: xray.app.stats.command.StatsService.GetStatsOnline:output_type -> xray.app.stats.command.GetStatsResponse
+	4,  // 11: xray.app.stats.command.StatsService.QueryStats:output_type -> xray.app.stats.command.QueryStatsResponse
+	6,  // 12: xray.app.stats.command.StatsService.GetSysStats:output_type -> xray.app.stats.command.SysStatsResponse
+	7,  // 13: xray.app.stats.command.StatsService.GetStatsOnlineIpList:output_type -> xray.app.stats.command.GetStatsOnlineIpListResponse
+	9,  // 14: xray.app.stats.command.StatsService.GetAllOnlineUsers:output_type -> xray.app.stats.command.GetAllOnlineUsersResponse
+	9,  // [9:15] is the sub-list for method output_type
+	3,  // [3:9] 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() }
-func file_app_stats_command_command_proto_init() {
-	if File_app_stats_command_command_proto != nil {
+func init() { file_command_proto_init() }
+func file_command_proto_init() {
+	if File_command_proto != nil {
 		return
 	}
 	type x struct{}
 	out := protoimpl.TypeBuilder{
 		File: protoimpl.DescBuilder{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
-			RawDescriptor: file_app_stats_command_command_proto_rawDesc,
+			RawDescriptor: unsafe.Slice(unsafe.StringData(file_command_proto_rawDesc), len(file_command_proto_rawDesc)),
 			NumEnums:      0,
-			NumMessages:   10,
+			NumMessages:   12,
 			NumExtensions: 0,
 			NumServices:   1,
 		},
-		GoTypes:           file_app_stats_command_command_proto_goTypes,
-		DependencyIndexes: file_app_stats_command_command_proto_depIdxs,
-		MessageInfos:      file_app_stats_command_command_proto_msgTypes,
+		GoTypes:           file_command_proto_goTypes,
+		DependencyIndexes: file_command_proto_depIdxs,
+		MessageInfos:      file_command_proto_msgTypes,
 	}.Build()
-	File_app_stats_command_command_proto = out.File
-	file_app_stats_command_command_proto_rawDesc = nil
-	file_app_stats_command_command_proto_goTypes = nil
-	file_app_stats_command_command_proto_depIdxs = nil
+	File_command_proto = out.File
+	file_command_proto_goTypes = nil
+	file_command_proto_depIdxs = nil
 }

app/stats/command/command.proto

@@ -51,12 +51,19 @@ message GetStatsOnlineIpListResponse {
   map<string, int64> ips = 2;
 }
 
+message GetAllOnlineUsersRequest {}
+
+message GetAllOnlineUsersResponse {
+  repeated string users = 1;
+}
+
 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) {}
+  rpc GetAllOnlineUsers(GetAllOnlineUsersRequest) returns (GetAllOnlineUsersResponse) {}
 }
 
 message Config {}

app/stats/command/command_grpc.pb.go

@@ -1,8 +1,8 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
 // versions:
 // - protoc-gen-go-grpc v1.5.1
-// - protoc             v5.28.2
-// source: app/stats/command/command.proto
+// - protoc             v6.32.0
+// source: command.proto
 
 package command
 
@@ -24,6 +24,7 @@ const (
 	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"
+	StatsService_GetAllOnlineUsers_FullMethodName    = "/xray.app.stats.command.StatsService/GetAllOnlineUsers"
 )
 
 // StatsServiceClient is the client API for StatsService service.
@@ -35,6 +36,7 @@ type StatsServiceClient interface {
 	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)
+	GetAllOnlineUsers(ctx context.Context, in *GetAllOnlineUsersRequest, opts ...grpc.CallOption) (*GetAllOnlineUsersResponse, error)
 }
 
 type statsServiceClient struct {
@@ -95,6 +97,16 @@ func (c *statsServiceClient) GetStatsOnlineIpList(ctx context.Context, in *GetSt
 	return out, nil
 }
 
+func (c *statsServiceClient) GetAllOnlineUsers(ctx context.Context, in *GetAllOnlineUsersRequest, opts ...grpc.CallOption) (*GetAllOnlineUsersResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(GetAllOnlineUsersResponse)
+	err := c.cc.Invoke(ctx, StatsService_GetAllOnlineUsers_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.
@@ -104,6 +116,7 @@ type StatsServiceServer interface {
 	QueryStats(context.Context, *QueryStatsRequest) (*QueryStatsResponse, error)
 	GetSysStats(context.Context, *SysStatsRequest) (*SysStatsResponse, error)
 	GetStatsOnlineIpList(context.Context, *GetStatsRequest) (*GetStatsOnlineIpListResponse, error)
+	GetAllOnlineUsers(context.Context, *GetAllOnlineUsersRequest) (*GetAllOnlineUsersResponse, error)
 	mustEmbedUnimplementedStatsServiceServer()
 }
 
@@ -129,6 +142,9 @@ func (UnimplementedStatsServiceServer) GetSysStats(context.Context, *SysStatsReq
 func (UnimplementedStatsServiceServer) GetStatsOnlineIpList(context.Context, *GetStatsRequest) (*GetStatsOnlineIpListResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method GetStatsOnlineIpList not implemented")
 }
+func (UnimplementedStatsServiceServer) GetAllOnlineUsers(context.Context, *GetAllOnlineUsersRequest) (*GetAllOnlineUsersResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method GetAllOnlineUsers not implemented")
+}
 func (UnimplementedStatsServiceServer) mustEmbedUnimplementedStatsServiceServer() {}
 func (UnimplementedStatsServiceServer) testEmbeddedByValue()                      {}
 
@@ -240,6 +256,24 @@ func _StatsService_GetStatsOnlineIpList_Handler(srv interface{}, ctx context.Con
 	return interceptor(ctx, in, info, handler)
 }
 
+func _StatsService_GetAllOnlineUsers_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(GetAllOnlineUsersRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(StatsServiceServer).GetAllOnlineUsers(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: StatsService_GetAllOnlineUsers_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(StatsServiceServer).GetAllOnlineUsers(ctx, req.(*GetAllOnlineUsersRequest))
+	}
+	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)
@@ -267,7 +301,11 @@ var StatsService_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "GetStatsOnlineIpList",
 			Handler:    _StatsService_GetStatsOnlineIpList_Handler,
 		},
+		{
+			MethodName: "GetAllOnlineUsers",
+			Handler:    _StatsService_GetAllOnlineUsers_Handler,
+		},
 	},
 	Streams:  []grpc.StreamDesc{},
-	Metadata: "app/stats/command/command.proto",
+	Metadata: "command.proto",
 }

app/stats/stats.go

@@ -161,6 +161,21 @@ func (m *Manager) GetChannel(name string) stats.Channel {
 	return nil
 }
 
+// GetAllOnlineUsers implements stats.Manager.
+func (m *Manager) GetAllOnlineUsers() []string {
+	m.access.Lock()
+	defer m.access.Unlock()
+
+	usersOnline := make([]string, 0, len(m.onlineMap))
+	for user, onlineMap := range m.onlineMap {
+		if len(onlineMap.IpTimeMap()) > 0 {
+			usersOnline = append(usersOnline, user)
+		}
+	}
+
+	return usersOnline
+}
+
 // Start implements common.Runnable.
 func (m *Manager) Start() error {
 	m.access.Lock()

common/antireplay/antireplay.go

@@ -1,6 +0,0 @@
-package antireplay
-
-type GeneralizedReplayFilter interface {
-	Interval() int64
-	Check(sum []byte) bool
-}

common/antireplay/antireplay_test.go

@@ -0,0 +1,33 @@
+package antireplay
+
+import (
+	"bufio"
+	"crypto/rand"
+	"testing"
+)
+
+func BenchmarkMapFilter(b *testing.B) {
+	filter := NewMapFilter[[16]byte](120)
+	var sample [16]byte
+	reader := bufio.NewReader(rand.Reader)
+	reader.Read(sample[:])
+	b.ResetTimer()
+	for range b.N {
+		reader.Read(sample[:])
+		filter.Check(sample)
+	}
+}
+
+func TestMapFilter(t *testing.T) {
+	filter := NewMapFilter[[16]byte](120)
+	var sample [16]byte
+	rand.Read(sample[:])
+	filter.Check(sample)
+	if filter.Check(sample) {
+		t.Error("Unexpected true negative")
+	}
+	sample[0]++
+	if !filter.Check(sample) {
+		t.Error("Unexpected false positive")
+	}
+}

common/antireplay/bloomring.go

@@ -1,36 +0,0 @@
-package antireplay
-
-import (
-	"sync"
-
-	ss_bloomring "github.com/v2fly/ss-bloomring"
-)
-
-type BloomRing struct {
-	*ss_bloomring.BloomRing
-	lock *sync.Mutex
-}
-
-func (b BloomRing) Interval() int64 {
-	return 9999999
-}
-
-func (b BloomRing) Check(sum []byte) bool {
-	b.lock.Lock()
-	defer b.lock.Unlock()
-	if b.Test(sum) {
-		return false
-	}
-	b.Add(sum)
-	return true
-}
-
-func NewBloomRing() BloomRing {
-	const (
-		DefaultSFCapacity = 1e6
-		// FalsePositiveRate
-		DefaultSFFPR  = 1e-6
-		DefaultSFSlot = 10
-	)
-	return BloomRing{ss_bloomring.NewBloomRing(DefaultSFSlot, DefaultSFCapacity, DefaultSFFPR), &sync.Mutex{}}
-}

common/antireplay/mapfilter.go

@@ -0,0 +1,46 @@
+package antireplay
+
+import (
+	"sync"
+	"time"
+)
+
+// ReplayFilter checks for replay attacks.
+type ReplayFilter[T comparable] struct {
+	lock      sync.Mutex
+	poolA     map[T]struct{}
+	poolB     map[T]struct{}
+	interval  time.Duration
+	lastClean time.Time
+}
+
+// NewMapFilter create a new filter with specifying the expiration time interval in seconds.
+func NewMapFilter[T comparable](interval int64) *ReplayFilter[T] {
+	filter := &ReplayFilter[T]{
+		poolA:     make(map[T]struct{}),
+		poolB:     make(map[T]struct{}),
+		interval:  time.Duration(interval) * time.Second,
+		lastClean: time.Now(),
+	}
+	return filter
+}
+
+// Check determines if there are duplicate records.
+func (filter *ReplayFilter[T]) Check(sum T) bool {
+	filter.lock.Lock()
+	defer filter.lock.Unlock()
+
+	now := time.Now()
+	if now.Sub(filter.lastClean) >= filter.interval {
+		filter.poolB = filter.poolA
+		filter.poolA = make(map[T]struct{})
+		filter.lastClean = now
+	}
+
+	_, existsA := filter.poolA[sum]
+	_, existsB := filter.poolB[sum]
+	if !existsA && !existsB {
+		filter.poolA[sum] = struct{}{}
+	}
+	return !(existsA || existsB)
+}

common/antireplay/replayfilter.go

@@ -1,58 +0,0 @@
-package antireplay
-
-import (
-	"sync"
-	"time"
-
-	cuckoo "github.com/seiflotfy/cuckoofilter"
-)
-
-const replayFilterCapacity = 100000
-
-// ReplayFilter checks for replay attacks.
-type ReplayFilter struct {
-	lock     sync.Mutex
-	poolA    *cuckoo.Filter
-	poolB    *cuckoo.Filter
-	poolSwap bool
-	lastSwap int64
-	interval int64
-}
-
-// NewReplayFilter create a new filter with specifying the expiration time interval in seconds.
-func NewReplayFilter(interval int64) *ReplayFilter {
-	filter := &ReplayFilter{}
-	filter.interval = interval
-	return filter
-}
-
-// Interval in second for expiration time for duplicate records.
-func (filter *ReplayFilter) Interval() int64 {
-	return filter.interval
-}
-
-// Check determines if there are duplicate records.
-func (filter *ReplayFilter) Check(sum []byte) bool {
-	filter.lock.Lock()
-	defer filter.lock.Unlock()
-
-	now := time.Now().Unix()
-	if filter.lastSwap == 0 {
-		filter.lastSwap = now
-		filter.poolA = cuckoo.NewFilter(replayFilterCapacity)
-		filter.poolB = cuckoo.NewFilter(replayFilterCapacity)
-	}
-
-	elapsed := now - filter.lastSwap
-	if elapsed >= filter.Interval() {
-		if filter.poolSwap {
-			filter.poolA.Reset()
-		} else {
-			filter.poolB.Reset()
-		}
-		filter.poolSwap = !filter.poolSwap
-		filter.lastSwap = now
-	}
-
-	return filter.poolA.InsertUnique(sum) && filter.poolB.InsertUnique(sum)
-}

common/buf/buffer.go

@@ -15,8 +15,6 @@ const (
 
 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.
@@ -146,7 +144,7 @@ func (b *Buffer) Bytes() []byte {
 }
 
 // Extend increases the buffer size by n bytes, and returns the extended part.
-// It panics if result size is larger than buf.Size.
+// It panics if result size is larger than size of this buffer.
 func (b *Buffer) Extend(n int32) []byte {
 	end := b.end + n
 	if end > int32(len(b.v)) {
@@ -154,7 +152,7 @@ func (b *Buffer) Extend(n int32) []byte {
 	}
 	ext := b.v[b.end:end]
 	b.end = end
-	copy(ext, zero[:])
+	clear(ext)
 	return ext
 }
 
@@ -217,7 +215,7 @@ func (b *Buffer) Resize(from, to int32) {
 	b.start += from
 	b.Check()
 	if b.end > oldEnd {
-		copy(b.v[oldEnd:b.end], zero[:])
+		clear(b.v[oldEnd:b.end])
 	}
 }
 

common/buf/io.go

@@ -24,9 +24,59 @@ var ErrReadTimeout = errors.New("IO timeout")
 
 // TimeoutReader is a reader that returns error if Read() operation takes longer than the given timeout.
 type TimeoutReader interface {
+	Reader
 	ReadMultiBufferTimeout(time.Duration) (MultiBuffer, error)
 }
 
+type TimeoutWrapperReader struct {
+	Reader
+	stats.Counter
+	mb   MultiBuffer
+	err  error
+	done chan struct{}
+}
+
+func (r *TimeoutWrapperReader) ReadMultiBuffer() (MultiBuffer, error) {
+	if r.done != nil {
+		<-r.done
+		r.done = nil
+		if r.Counter != nil {
+			r.Counter.Add(int64(r.mb.Len()))
+		}
+		return r.mb, r.err
+	}
+	r.mb, r.err = r.Reader.ReadMultiBuffer()
+	if r.Counter != nil {
+		r.Counter.Add(int64(r.mb.Len()))
+	}
+	return r.mb, r.err
+}
+
+func (r *TimeoutWrapperReader) ReadMultiBufferTimeout(duration time.Duration) (MultiBuffer, error) {
+	if r.done == nil {
+		r.done = make(chan struct{})
+		go func() {
+			r.mb, r.err = r.Reader.ReadMultiBuffer()
+			close(r.done)
+		}()
+	}
+	timeout := make(chan struct{})
+	go func() {
+		time.Sleep(duration)
+		close(timeout)
+	}()
+	select {
+	case <-r.done:
+		r.done = nil
+		if r.Counter != nil {
+			r.Counter.Add(int64(r.mb.Len()))
+		}
+		return r.mb, r.err
+	case <-timeout:
+		return nil, nil
+	}
+}
+
 // Writer extends io.Writer with MultiBuffer.
 type Writer interface {
 	// WriteMultiBuffer writes a MultiBuffer into underlying writer.

common/buf/writer.go

@@ -75,9 +75,10 @@ func (w *BufferToBytesWriter) ReadFrom(reader io.Reader) (int64, error) {
 // BufferedWriter is a Writer with internal buffer.
 type BufferedWriter struct {
 	sync.Mutex
-	writer   Writer
-	buffer   *Buffer
-	buffered bool
+	writer    Writer
+	buffer    *Buffer
+	buffered  bool
+	flushNext bool
 }
 
 // NewBufferedWriter creates a new BufferedWriter.
@@ -161,6 +162,12 @@ func (w *BufferedWriter) WriteMultiBuffer(b MultiBuffer) error {
 		}
 	}
 
+	if w.flushNext {
+		w.buffered = false
+		w.flushNext = false
+		return w.flushInternal()
+	}
+
 	return nil
 }
 
@@ -201,6 +208,13 @@ func (w *BufferedWriter) SetBuffered(f bool) error {
 	return nil
 }
 
+// SetFlushNext will wait the next WriteMultiBuffer to flush and set buffered = false
+func (w *BufferedWriter) SetFlushNext() {
+	w.Lock()
+	defer w.Unlock()
+	w.flushNext = true
+}
+
 // ReadFrom implements io.ReaderFrom.
 func (w *BufferedWriter) ReadFrom(reader io.Reader) (int64, error) {
 	if err := w.SetBuffered(false); err != nil {

common/common.go

@@ -7,6 +7,7 @@ import (
 	"go/build"
 	"os"
 	"path/filepath"
+	"reflect"
 	"strings"
 
 	"github.com/xtls/xray-core/common/errors"
@@ -153,3 +154,14 @@ func GetModuleName(pathToProjectRoot string) (string, error) {
 	}
 	return moduleName, fmt.Errorf("no `go.mod` file in every parent directory of `%s`", pathToProjectRoot)
 }
+
+// CloseIfExists call obj.Close() if obj is not nil.
+func CloseIfExists(obj any) error {
+	if obj != nil {
+		v := reflect.ValueOf(obj)
+		if !v.IsNil() {
+			return Close(obj)
+		}
+	}
+	return nil
+}

common/crypto/crypto.go

@@ -10,6 +10,9 @@ func RandBetween(from int64, to int64) int64 {
 	if from == to {
 		return from
 	}
+	if from > to {
+		from, to = to, from
+	}
 	bigInt, _ := rand.Int(rand.Reader, big.NewInt(to-from))
 	return from + bigInt.Int64()
 }

common/errors/feature_errors.go

@@ -4,22 +4,19 @@ import (
 	"context"
 )
 
-// PrintMigrateFeatureInfo prints a notice of the upcoming feature migration.
-// Place it after the source feature related config file pharser code.
-// Important note: Only use this when the target migrating feature is under construction.
-// Important note: Even when the target migrating feature has finished its construction, this notice can still be used yet before announcing deprecation of the old feature.
+// PrintNonRemovalDeprecatedFeatureWarning prints a warning of the deprecated feature that won't be removed in the near future.
 // Do not remove this function even there is no reference to it.
-func PrintMigrateFeatureInfo(sourceFeature string, targetFeature string) {
-	LogInfo(context.Background(), "The feature "+sourceFeature+" will be migrated to "+targetFeature+" in the future.")
+func PrintNonRemovalDeprecatedFeatureWarning(sourceFeature string, targetFeature string) {
+	LogWarning(context.Background(), "The feature "+sourceFeature+" is deprecated, not recommended for using and might be removed. Please migrate to "+targetFeature+" as soon as possible.")
 }
 
 // PrintDeprecatedFeatureWarning prints a warning for deprecated and going to be removed feature.
 // Do not remove this function even there is no reference to it.
 func PrintDeprecatedFeatureWarning(feature string, migrateFeature string) {
 	if len(migrateFeature) > 0 {
-		LogWarning(context.Background(), "This feature "+feature+" is deprecated and being migrated to "+migrateFeature+". Please update your config(s) according to release note and documentation before removal.")
+		LogWarning(context.Background(), "This feature "+feature+" is deprecated, will be removed soon and being migrated to "+migrateFeature+". Please update your config(s) according to release note and documentation before removal.")
 	} else {
-		LogWarning(context.Background(), "This feature "+feature+" is deprecated. Please update your config(s) according to release note and documentation before removal.")
+		LogWarning(context.Background(), "This feature "+feature+" is deprecated and will be removed soon. Please update your config(s) according to release note and documentation before removal.")
 	}
 }
 

common/log/dns.go

@@ -43,8 +43,9 @@ func (l *DNSLog) String() string {
 type dnsStatus string
 
 var (
-	DNSQueried  = dnsStatus("got answer:")
-	DNSCacheHit = dnsStatus("cache HIT:")
+	DNSQueried        = dnsStatus("got answer:")
+	DNSCacheHit       = dnsStatus("cache HIT:")
+	DNSCacheOptimiste = dnsStatus("cache OPTIMISTE:")
 )
 
 func joinNetIP(ips []net.IP) string {

common/mux/client.go

@@ -2,6 +2,7 @@ package mux
 
 import (
 	"context"
+	goerrors "errors"
 	"io"
 	"sync"
 	"time"
@@ -154,8 +155,11 @@ func (f *DialingWorkerFactory) Create() (*ClientWorker, error) {
 		ctx := session.ContextWithOutbounds(context.Background(), outbounds)
 		ctx, cancel := context.WithCancel(ctx)
 
-		if err := p.Process(ctx, &transport.Link{Reader: uplinkReader, Writer: downlinkWriter}, d); err != nil {
-			errors.LogInfoInner(ctx, err, "failed to handler mux client connection")
+		if errP := p.Process(ctx, &transport.Link{Reader: uplinkReader, Writer: downlinkWriter}, d); errP != nil {
+			errC := errors.Cause(errP)
+			if !(goerrors.Is(errC, io.EOF) || goerrors.Is(errC, io.ErrClosedPipe) || goerrors.Is(errC, context.Canceled)) {
+				errors.LogInfoInner(ctx, errP, "failed to handler mux client connection")
+			}
 		}
 		common.Must(c.Close())
 		cancel()
@@ -211,23 +215,28 @@ func (m *ClientWorker) Closed() bool {
 	return m.done.Done()
 }
 
-func (m *ClientWorker) GetTimer() *time.Ticker {
-	return m.timer
+func (m *ClientWorker) WaitClosed() <-chan struct{} {
+	return m.done.Wait()
+}
+
+func (m *ClientWorker) Close() error {
+	return m.done.Close()
 }
 
 func (m *ClientWorker) monitor() {
 	defer m.timer.Stop()
 
 	for {
+		checkSize := m.sessionManager.Size()
+		checkCount := m.sessionManager.Count()
 		select {
 		case <-m.done.Wait():
 			m.sessionManager.Close()
-			common.Close(m.link.Writer)
+			common.Interrupt(m.link.Writer)
 			common.Interrupt(m.link.Reader)
 			return
 		case <-m.timer.C:
-			size := m.sessionManager.Size()
-			if size == 0 && m.sessionManager.CloseIfNoSession() {
+			if m.sessionManager.CloseIfNoSessionAndIdle(checkSize, checkCount) {
 				common.Must(m.done.Close())
 			}
 		}
@@ -255,7 +264,11 @@ func fetchInput(ctx context.Context, s *Session, output buf.Writer) {
 		transferType = protocol.TransferTypePacket
 	}
 	s.transferType = transferType
-	writer := NewWriter(s.ID, ob.Target, output, transferType, xudp.GetGlobalID(ctx))
+	var inbound *session.Inbound
+	if session.IsReverseMuxFromContext(ctx) {
+		inbound = session.InboundFromContext(ctx)
+	}
+	writer := NewWriter(s.ID, ob.Target, output, transferType, xudp.GetGlobalID(ctx), inbound)
 	defer s.Close(false)
 	defer writer.Close()
 
@@ -308,6 +321,12 @@ func (m *ClientWorker) Dispatch(ctx context.Context, link *transport.Link) bool
 	s.input = link.Reader
 	s.output = link.Writer
 	go fetchInput(ctx, s, m.link.Writer)
+	if _, ok := link.Reader.(*pipe.Reader); !ok {
+		select {
+		case <-ctx.Done():
+		case <-s.done.Wait():
+		}
+	}
 	return true
 }
 
@@ -369,7 +388,7 @@ func (m *ClientWorker) fetchOutput() {
 
 	var meta FrameMetadata
 	for {
-		err := meta.Unmarshal(reader)
+		err := meta.Unmarshal(reader, false)
 		if err != nil {
 			if errors.Cause(err) != io.EOF {
 				errors.LogInfoInner(context.Background(), err, "failed to read metadata")

common/mux/frame.go

@@ -11,6 +11,7 @@ import (
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/protocol"
 	"github.com/xtls/xray-core/common/serial"
+	"github.com/xtls/xray-core/common/session"
 )
 
 type SessionStatus byte
@@ -60,6 +61,7 @@ type FrameMetadata struct {
 	Option        bitmask.Byte
 	SessionStatus SessionStatus
 	GlobalID      [8]byte
+	Inbound       *session.Inbound
 }
 
 func (f FrameMetadata) WriteTo(b *buf.Buffer) error {
@@ -79,11 +81,23 @@ func (f FrameMetadata) WriteTo(b *buf.Buffer) error {
 		case net.Network_UDP:
 			common.Must(b.WriteByte(byte(TargetNetworkUDP)))
 		}
-
 		if err := addrParser.WriteAddressPort(b, f.Target.Address, f.Target.Port); err != nil {
 			return err
 		}
-		if b.UDP != nil { // make sure it's user's proxy request
+		if f.Inbound != nil {
+			if f.Inbound.Source.Network == net.Network_TCP || f.Inbound.Source.Network == net.Network_UDP {
+				common.Must(b.WriteByte(byte(f.Inbound.Source.Network - 1)))
+				if err := addrParser.WriteAddressPort(b, f.Inbound.Source.Address, f.Inbound.Source.Port); err != nil {
+					return err
+				}
+				if f.Inbound.Local.Network == net.Network_TCP || f.Inbound.Local.Network == net.Network_UDP {
+					common.Must(b.WriteByte(byte(f.Inbound.Local.Network - 1)))
+					if err := addrParser.WriteAddressPort(b, f.Inbound.Local.Address, f.Inbound.Local.Port); err != nil {
+						return err
+					}
+				}
+			}
+		} else if b.UDP != nil { // make sure it's user's proxy request
 			b.Write(f.GlobalID[:]) // no need to check whether it's empty
 		}
 	} else if b.UDP != nil {
@@ -97,7 +111,7 @@ func (f FrameMetadata) WriteTo(b *buf.Buffer) error {
 }
 
 // Unmarshal reads FrameMetadata from the given reader.
-func (f *FrameMetadata) Unmarshal(reader io.Reader) error {
+func (f *FrameMetadata) Unmarshal(reader io.Reader, readSourceAndLocal bool) error {
 	metaLen, err := serial.ReadUint16(reader)
 	if err != nil {
 		return err
@@ -112,12 +126,12 @@ func (f *FrameMetadata) Unmarshal(reader io.Reader) error {
 	if _, err := b.ReadFullFrom(reader, int32(metaLen)); err != nil {
 		return err
 	}
-	return f.UnmarshalFromBuffer(b)
+	return f.UnmarshalFromBuffer(b, readSourceAndLocal)
 }
 
 // UnmarshalFromBuffer reads a FrameMetadata from the given buffer.
 // Visible for testing only.
-func (f *FrameMetadata) UnmarshalFromBuffer(b *buf.Buffer) error {
+func (f *FrameMetadata) UnmarshalFromBuffer(b *buf.Buffer, readSourceAndLocal bool) error {
 	if b.Len() < 4 {
 		return errors.New("insufficient buffer: ", b.Len())
 	}
@@ -150,6 +164,54 @@ func (f *FrameMetadata) UnmarshalFromBuffer(b *buf.Buffer) error {
 		}
 	}
 
+	if f.SessionStatus == SessionStatusNew && readSourceAndLocal {
+		f.Inbound = &session.Inbound{}
+
+		if b.Len() == 0 {
+			return nil // for heartbeat, etc.
+		}
+		network := TargetNetwork(b.Byte(0))
+		if network == 0 {
+			return nil // may be padding
+		}
+		b.Advance(1)
+		addr, port, err := addrParser.ReadAddressPort(nil, b)
+		if err != nil {
+			return errors.New("reading source: failed to parse address and port").Base(err)
+		}
+		switch network {
+		case TargetNetworkTCP:
+			f.Inbound.Source = net.TCPDestination(addr, port)
+		case TargetNetworkUDP:
+			f.Inbound.Source = net.UDPDestination(addr, port)
+		default:
+			return errors.New("reading source: unknown network type: ", network)
+		}
+
+		if b.Len() == 0 {
+			return nil
+		}
+		network = TargetNetwork(b.Byte(0))
+		if network == 0 {
+			return nil
+		}
+		b.Advance(1)
+		addr, port, err = addrParser.ReadAddressPort(nil, b)
+		if err != nil {
+			return errors.New("reading local: failed to parse address and port").Base(err)
+		}
+		switch network {
+		case TargetNetworkTCP:
+			f.Inbound.Local = net.TCPDestination(addr, port)
+		case TargetNetworkUDP:
+			f.Inbound.Local = net.UDPDestination(addr, port)
+		default:
+			return errors.New("reading local: unknown network type: ", network)
+		}
+
+		return nil
+	}
+
 	// Application data is essential, to test whether the pipe is closed.
 	if f.SessionStatus == SessionStatusNew && f.Option.Has(OptionData) &&
 		f.Target.Network == net.Network_UDP && b.Len() >= 8 {

common/mux/mux_test.go

@@ -10,6 +10,7 @@ import (
 	. "github.com/xtls/xray-core/common/mux"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/protocol"
+	"github.com/xtls/xray-core/common/session"
 	"github.com/xtls/xray-core/transport/pipe"
 )
 
@@ -32,13 +33,13 @@ func TestReaderWriter(t *testing.T) {
 	pReader, pWriter := pipe.New(pipe.WithSizeLimit(1024))
 
 	dest := net.TCPDestination(net.DomainAddress("example.com"), 80)
-	writer := NewWriter(1, dest, pWriter, protocol.TransferTypeStream, [8]byte{})
+	writer := NewWriter(1, dest, pWriter, protocol.TransferTypeStream, [8]byte{}, &session.Inbound{})
 
 	dest2 := net.TCPDestination(net.LocalHostIP, 443)
-	writer2 := NewWriter(2, dest2, pWriter, protocol.TransferTypeStream, [8]byte{})
+	writer2 := NewWriter(2, dest2, pWriter, protocol.TransferTypeStream, [8]byte{}, &session.Inbound{})
 
 	dest3 := net.TCPDestination(net.LocalHostIPv6, 18374)
-	writer3 := NewWriter(3, dest3, pWriter, protocol.TransferTypeStream, [8]byte{})
+	writer3 := NewWriter(3, dest3, pWriter, protocol.TransferTypeStream, [8]byte{}, &session.Inbound{})
 
 	writePayload := func(writer *Writer, payload ...byte) error {
 		b := buf.New()
@@ -62,7 +63,7 @@ func TestReaderWriter(t *testing.T) {
 
 	{
 		var meta FrameMetadata
-		common.Must(meta.Unmarshal(bytesReader))
+		common.Must(meta.Unmarshal(bytesReader, false))
 		if r := cmp.Diff(meta, FrameMetadata{
 			SessionID:     1,
 			SessionStatus: SessionStatusNew,
@@ -81,7 +82,7 @@ func TestReaderWriter(t *testing.T) {
 
 	{
 		var meta FrameMetadata
-		common.Must(meta.Unmarshal(bytesReader))
+		common.Must(meta.Unmarshal(bytesReader, false))
 		if r := cmp.Diff(meta, FrameMetadata{
 			SessionStatus: SessionStatusNew,
 			SessionID:     2,
@@ -94,7 +95,7 @@ func TestReaderWriter(t *testing.T) {
 
 	{
 		var meta FrameMetadata
-		common.Must(meta.Unmarshal(bytesReader))
+		common.Must(meta.Unmarshal(bytesReader, false))
 		if r := cmp.Diff(meta, FrameMetadata{
 			SessionID:     1,
 			SessionStatus: SessionStatusKeep,
@@ -112,7 +113,7 @@ func TestReaderWriter(t *testing.T) {
 
 	{
 		var meta FrameMetadata
-		common.Must(meta.Unmarshal(bytesReader))
+		common.Must(meta.Unmarshal(bytesReader, false))
 		if r := cmp.Diff(meta, FrameMetadata{
 			SessionID:     3,
 			SessionStatus: SessionStatusNew,
@@ -131,7 +132,7 @@ func TestReaderWriter(t *testing.T) {
 
 	{
 		var meta FrameMetadata
-		common.Must(meta.Unmarshal(bytesReader))
+		common.Must(meta.Unmarshal(bytesReader, false))
 		if r := cmp.Diff(meta, FrameMetadata{
 			SessionID:     1,
 			SessionStatus: SessionStatusEnd,
@@ -143,7 +144,7 @@ func TestReaderWriter(t *testing.T) {
 
 	{
 		var meta FrameMetadata
-		common.Must(meta.Unmarshal(bytesReader))
+		common.Must(meta.Unmarshal(bytesReader, false))
 		if r := cmp.Diff(meta, FrameMetadata{
 			SessionID:     3,
 			SessionStatus: SessionStatusEnd,
@@ -155,7 +156,7 @@ func TestReaderWriter(t *testing.T) {
 
 	{
 		var meta FrameMetadata
-		common.Must(meta.Unmarshal(bytesReader))
+		common.Must(meta.Unmarshal(bytesReader, false))
 		if r := cmp.Diff(meta, FrameMetadata{
 			SessionID:     2,
 			SessionStatus: SessionStatusKeep,
@@ -173,7 +174,7 @@ func TestReaderWriter(t *testing.T) {
 
 	{
 		var meta FrameMetadata
-		common.Must(meta.Unmarshal(bytesReader))
+		common.Must(meta.Unmarshal(bytesReader, false))
 		if r := cmp.Diff(meta, FrameMetadata{
 			SessionID:     2,
 			SessionStatus: SessionStatusEnd,
@@ -187,7 +188,7 @@ func TestReaderWriter(t *testing.T) {
 
 	{
 		var meta FrameMetadata
-		err := meta.Unmarshal(bytesReader)
+		err := meta.Unmarshal(bytesReader, false)
 		if err == nil {
 			t.Error("nil error")
 		}

common/mux/server.go

@@ -3,6 +3,7 @@ package mux
 import (
 	"context"
 	"io"
+	"time"
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
@@ -11,6 +12,7 @@ import (
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/protocol"
 	"github.com/xtls/xray-core/common/session"
+	"github.com/xtls/xray-core/common/signal/done"
 	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/routing"
 	"github.com/xtls/xray-core/transport"
@@ -61,8 +63,15 @@ func (s *Server) DispatchLink(ctx context.Context, dest net.Destination, link *t
 	if dest.Address != muxCoolAddress {
 		return s.dispatcher.DispatchLink(ctx, dest, link)
 	}
-	_, err := NewServerWorker(ctx, s.dispatcher, link)
-	return err
+	worker, err := NewServerWorker(ctx, s.dispatcher, link)
+	if err != nil {
+		return err
+	}
+	select {
+	case <-ctx.Done():
+	case <-worker.done.Wait():
+	}
+	return nil
 }
 
 // Start implements common.Runnable.
@@ -79,6 +88,8 @@ type ServerWorker struct {
 	dispatcher     routing.Dispatcher
 	link           *transport.Link
 	sessionManager *SessionManager
+	done           *done.Instance
+	timer          *time.Ticker
 }
 
 func NewServerWorker(ctx context.Context, d routing.Dispatcher, link *transport.Link) (*ServerWorker, error) {
@@ -86,8 +97,14 @@ func NewServerWorker(ctx context.Context, d routing.Dispatcher, link *transport.
 		dispatcher:     d,
 		link:           link,
 		sessionManager: NewSessionManager(),
+		done:           done.New(),
+		timer:          time.NewTicker(60 * time.Second),
+	}
+	if inbound := session.InboundFromContext(ctx); inbound != nil {
+		inbound.CanSpliceCopy = 3
 	}
 	go worker.run(ctx)
+	go worker.monitor()
 	return worker, nil
 }
 
@@ -102,12 +119,40 @@ func handle(ctx context.Context, s *Session, output buf.Writer) {
 	s.Close(false)
 }
 
+func (w *ServerWorker) monitor() {
+	defer w.timer.Stop()
+
+	for {
+		checkSize := w.sessionManager.Size()
+		checkCount := w.sessionManager.Count()
+		select {
+		case <-w.done.Wait():
+			w.sessionManager.Close()
+			common.Interrupt(w.link.Writer)
+			common.Interrupt(w.link.Reader)
+			return
+		case <-w.timer.C:
+			if w.sessionManager.CloseIfNoSessionAndIdle(checkSize, checkCount) {
+				common.Must(w.done.Close())
+			}
+		}
+	}
+}
+
 func (w *ServerWorker) ActiveConnections() uint32 {
 	return uint32(w.sessionManager.Size())
 }
 
 func (w *ServerWorker) Closed() bool {
-	return w.sessionManager.Closed()
+	return w.done.Done()
+}
+
+func (w *ServerWorker) WaitClosed() <-chan struct{} {
+	return w.done.Wait()
+}
+
+func (w *ServerWorker) Close() error {
+	return w.done.Close()
 }
 
 func (w *ServerWorker) handleStatusKeepAlive(meta *FrameMetadata, reader *buf.BufferedReader) error {
@@ -119,6 +164,14 @@ func (w *ServerWorker) handleStatusKeepAlive(meta *FrameMetadata, reader *buf.Bu
 
 func (w *ServerWorker) handleStatusNew(ctx context.Context, meta *FrameMetadata, reader *buf.BufferedReader) error {
 	ctx = session.SubContextFromMuxInbound(ctx)
+	if meta.Inbound != nil && meta.Inbound.Source.IsValid() && meta.Inbound.Local.IsValid() {
+		if inbound := session.InboundFromContext(ctx); inbound != nil {
+			newInbound := *inbound
+			newInbound.Source = meta.Inbound.Source
+			newInbound.Local = meta.Inbound.Local
+			ctx = session.ContextWithInbound(ctx, &newInbound)
+		}
+	}
 	errors.LogInfo(ctx, "received request for ", meta.Target)
 	{
 		msg := &log.AccessMessage{
@@ -282,7 +335,7 @@ func (w *ServerWorker) handleStatusEnd(meta *FrameMetadata, reader *buf.Buffered
 
 func (w *ServerWorker) handleFrame(ctx context.Context, reader *buf.BufferedReader) error {
 	var meta FrameMetadata
-	err := meta.Unmarshal(reader)
+	err := meta.Unmarshal(reader, session.IsReverseMuxFromContext(ctx))
 	if err != nil {
 		return errors.New("failed to read metadata").Base(err)
 	}
@@ -293,7 +346,7 @@ func (w *ServerWorker) handleFrame(ctx context.Context, reader *buf.BufferedRead
 	case SessionStatusEnd:
 		err = w.handleStatusEnd(&meta, reader)
 	case SessionStatusNew:
-		err = w.handleStatusNew(ctx, &meta, reader)
+		err = w.handleStatusNew(session.ContextWithIsReverseMux(ctx, false), &meta, reader)
 	case SessionStatusKeep:
 		err = w.handleStatusKeep(&meta, reader)
 	default:
@@ -308,11 +361,11 @@ func (w *ServerWorker) handleFrame(ctx context.Context, reader *buf.BufferedRead
 }
 
 func (w *ServerWorker) run(ctx context.Context) {
-	reader := &buf.BufferedReader{Reader: w.link.Reader}
+	defer func() {
+		common.Must(w.done.Close())
+	}()
 
-	defer w.sessionManager.Close()
-	defer common.Close(w.link.Writer)
-	defer common.Interrupt(w.link.Reader)
+	reader := &buf.BufferedReader{Reader: w.link.Reader}
 
 	for {
 		select {

common/mux/session.go

@@ -12,6 +12,7 @@ import (
 	"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/signal/done"
 	"github.com/xtls/xray-core/transport/pipe"
 )
 
@@ -53,7 +54,7 @@ func (m *SessionManager) Count() int {
 func (m *SessionManager) Allocate(Strategy *ClientStrategy) *Session {
 	m.Lock()
 	defer m.Unlock()
-	
+
 	MaxConcurrency := int(Strategy.MaxConcurrency)
 	MaxConnection := uint16(Strategy.MaxConnection)
 
@@ -65,6 +66,7 @@ func (m *SessionManager) Allocate(Strategy *ClientStrategy) *Session {
 	s := &Session{
 		ID:     m.count,
 		parent: m,
+		done:   done.New(),
 	}
 	m.sessions[s.ID] = s
 	return s
@@ -115,7 +117,7 @@ func (m *SessionManager) Get(id uint16) (*Session, bool) {
 	return s, found
 }
 
-func (m *SessionManager) CloseIfNoSession() bool {
+func (m *SessionManager) CloseIfNoSessionAndIdle(checkSize int, checkCount int) bool {
 	m.Lock()
 	defer m.Unlock()
 
@@ -123,11 +125,13 @@ func (m *SessionManager) CloseIfNoSession() bool {
 		return true
 	}
 
-	if len(m.sessions) != 0 {
+	if len(m.sessions) != 0 || checkSize != 0 || checkCount != int(m.count) {
 		return false
 	}
 
 	m.closed = true
+
+	m.sessions = nil
 	return true
 }
 
@@ -157,6 +161,7 @@ type Session struct {
 	ID           uint16
 	transferType protocol.TransferType
 	closed       bool
+	done         *done.Instance
 	XUDP         *XUDP
 }
 
@@ -171,6 +176,9 @@ func (s *Session) Close(locked bool) error {
 		return nil
 	}
 	s.closed = true
+	if s.done != nil {
+		s.done.Close()
+	}
 	if s.XUDP == nil {
 		common.Interrupt(s.input)
 		common.Close(s.output)

common/mux/session_test.go

@@ -41,11 +41,11 @@ func TestSessionManagerClose(t *testing.T) {
 	m := NewSessionManager()
 	s := m.Allocate(&ClientStrategy{})
 
-	if m.CloseIfNoSession() {
+	if m.CloseIfNoSessionAndIdle(m.Size(), m.Count()) {
 		t.Error("able to close")
 	}
 	m.Remove(false, s.ID)
-	if !m.CloseIfNoSession() {
+	if !m.CloseIfNoSessionAndIdle(m.Size(), m.Count()) {
 		t.Error("not able to close")
 	}
 }

common/mux/writer.go

@@ -6,6 +6,7 @@ import (
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/protocol"
 	"github.com/xtls/xray-core/common/serial"
+	"github.com/xtls/xray-core/common/session"
 )
 
 type Writer struct {
@@ -16,9 +17,10 @@ type Writer struct {
 	hasError     bool
 	transferType protocol.TransferType
 	globalID     [8]byte
+	inbound      *session.Inbound
 }
 
-func NewWriter(id uint16, dest net.Destination, writer buf.Writer, transferType protocol.TransferType, globalID [8]byte) *Writer {
+func NewWriter(id uint16, dest net.Destination, writer buf.Writer, transferType protocol.TransferType, globalID [8]byte, inbound *session.Inbound) *Writer {
 	return &Writer{
 		id:           id,
 		dest:         dest,
@@ -26,6 +28,7 @@ func NewWriter(id uint16, dest net.Destination, writer buf.Writer, transferType
 		followup:     false,
 		transferType: transferType,
 		globalID:     globalID,
+		inbound:      inbound,
 	}
 }
 
@@ -43,6 +46,7 @@ func (w *Writer) getNextFrameMeta() FrameMetadata {
 		SessionID: w.id,
 		Target:    w.dest,
 		GlobalID:  w.globalID,
+		Inbound:   w.inbound,
 	}
 
 	if w.followup {

common/net/find_process_linux.go

@@ -0,0 +1,176 @@
+//go:build linux
+
+package net
+
+import (
+	"bufio"
+	"encoding/hex"
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+
+	"github.com/xtls/xray-core/common/errors"
+)
+
+func FindProcess(dest Destination) (PID int, Name string, AbsolutePath string, err error) {
+	isLocal, err := IsLocal(dest.Address.IP())
+	if err != nil {
+		return 0, "", "", errors.New("failed to determine if address is local: ", err)
+	}
+	if !isLocal {
+		return 0, "", "", ErrNotLocal
+	}
+	if dest.Network != Network_TCP && dest.Network != Network_UDP {
+		panic("Unsupported network type for process lookup.")
+	}
+	// the core should never has a domain as source(?
+	if dest.Address.Family() == AddressFamilyDomain {
+		panic("Domain addresses are not supported for process lookup.")
+	}
+	var procFile string
+
+	switch dest.Network {
+	case Network_TCP:
+		if dest.Address.Family() == AddressFamilyIPv4 {
+			procFile = "/proc/net/tcp"
+		}
+		if dest.Address.Family() == AddressFamilyIPv6 {
+			procFile = "/proc/net/tcp6"
+		}
+	case Network_UDP:
+		if dest.Address.Family() == AddressFamilyIPv4 {
+			procFile = "/proc/net/udp"
+		}
+		if dest.Address.Family() == AddressFamilyIPv6 {
+			procFile = "/proc/net/udp6"
+		}
+	default:
+		panic("Unsupported network type for process lookup.")
+	}
+
+	targetHexAddr, err := formatLittleEndianString(dest.Address, dest.Port)
+	if err != nil {
+		return 0, "", "", errors.New("failed to format address: ", err)
+	}
+
+	inode, err := findInodeInFile(procFile, targetHexAddr)
+	if err != nil {
+		return 0, "", "", errors.New("could not search in ", procFile).Base(err)
+	}
+	if inode == "" {
+		return 0, "", "", errors.New("connection for ", dest.Address, ":", dest.Port, " not found in ", procFile)
+	}
+
+	pidStr, err := findPidByInode(inode)
+	if err != nil {
+		return 0, "", "", errors.New("could not find PID for inode ", inode, ": ", err)
+	}
+	if pidStr == "" {
+		return 0, "", "", errors.New("no process found for inode ", inode)
+	}
+
+	absPath, err := getAbsPath(pidStr)
+	if err != nil {
+		return 0, "", "", errors.New("could not get process name for PID ", pidStr, ":", err)
+	}
+
+	nameSplit := strings.Split(absPath, "/")
+	procName := nameSplit[len(nameSplit)-1]
+
+	pid, err := strconv.Atoi(pidStr)
+	if err != nil {
+		return 0, "", "", errors.New("failed to parse PID: ", err)
+	}
+
+	return pid, procName, absPath, nil
+}
+
+func formatLittleEndianString(addr Address, port Port) (string, error) {
+	ip := addr.IP()
+	var ipBytes []byte
+	if addr.Family() == AddressFamilyIPv4 {
+		ipBytes = ip.To4()
+	} else {
+		ipBytes = ip.To16()
+	}
+	if ipBytes == nil {
+		return "", errors.New("invalid IP format for ", addr.Family(), ": ", ip)
+	}
+
+	for i, j := 0, len(ipBytes)-1; i < j; i, j = i+1, j-1 {
+		ipBytes[i], ipBytes[j] = ipBytes[j], ipBytes[i]
+	}
+	portHex := fmt.Sprintf("%04X", uint16(port))
+	ipHex := strings.ToUpper(hex.EncodeToString(ipBytes))
+	return fmt.Sprintf("%s:%s", ipHex, portHex), nil
+}
+
+func findInodeInFile(filePath, targetHexAddr string) (string, error) {
+	file, err := os.Open(filePath)
+	if err != nil {
+		return "", err
+	}
+	defer file.Close()
+
+	scanner := bufio.NewScanner(file)
+
+	for scanner.Scan() {
+		line := scanner.Text()
+		fields := strings.Fields(line)
+
+		if len(fields) < 10 {
+			continue
+		}
+
+		localAddress := fields[1]
+		if localAddress == targetHexAddr {
+			inode := fields[9]
+			return inode, nil
+		}
+	}
+
+	return "", scanner.Err()
+}
+
+func findPidByInode(inode string) (string, error) {
+	procDir, err := os.ReadDir("/proc")
+	if err != nil {
+		return "", err
+	}
+
+	targetLink := "socket:[" + inode + "]"
+
+	for _, entry := range procDir {
+		if !entry.IsDir() {
+			continue
+		}
+		pid := entry.Name()
+		if _, err := strconv.Atoi(pid); err != nil {
+			continue
+		}
+
+		fdPath := fmt.Sprintf("/proc/%s/fd", pid)
+		fdDir, err := os.ReadDir(fdPath)
+		if err != nil {
+			continue
+		}
+
+		for _, fdEntry := range fdDir {
+			linkPath := fmt.Sprintf("%s/%s", fdPath, fdEntry.Name())
+			linkTarget, err := os.Readlink(linkPath)
+			if err != nil {
+				continue
+			}
+			if linkTarget == targetLink {
+				return pid, nil
+			}
+		}
+	}
+	return "", nil
+}
+
+func getAbsPath(pid string) (string, error) {
+	path := fmt.Sprintf("/proc/%s/exe", pid)
+	return os.Readlink(path)
+}

common/net/find_process_others.go

@@ -0,0 +1,11 @@
+//go:build !windows && !linux
+
+package net
+
+import (
+	"github.com/xtls/xray-core/common/errors"
+)
+
+func FindProcess(dest Destination) (int, string, string, error) {
+	return 0, "", "", errors.New("process lookup is not supported on this platform")
+}

common/net/find_process_windows.go

@@ -0,0 +1,243 @@
+//go:build windows
+
+package net
+
+import (
+	"net/netip"
+	"path/filepath"
+	"strings"
+	"sync"
+	"syscall"
+	"unsafe"
+
+	"golang.org/x/sys/windows"
+
+	"github.com/xtls/xray-core/common/errors"
+)
+
+const (
+	tcpTableFunc    = "GetExtendedTcpTable"
+	tcpTablePidConn = 4
+	udpTableFunc    = "GetExtendedUdpTable"
+	udpTablePid     = 1
+)
+
+var (
+	getExTCPTable uintptr
+	getExUDPTable uintptr
+
+	once    sync.Once
+	initErr error
+)
+
+func initWin32API() error {
+	h, err := windows.LoadLibrary("iphlpapi.dll")
+	if err != nil {
+		return errors.New("LoadLibrary iphlpapi.dll failed").Base(err)
+	}
+
+	getExTCPTable, err = windows.GetProcAddress(h, tcpTableFunc)
+	if err != nil {
+		return errors.New("GetProcAddress of ", tcpTableFunc, " failed").Base(err)
+	}
+
+	getExUDPTable, err = windows.GetProcAddress(h, udpTableFunc)
+	if err != nil {
+		return errors.New("GetProcAddress of ", udpTableFunc, " failed").Base(err)
+	}
+
+	return nil
+}
+
+func FindProcess(dest Destination) (PID int, Name string, AbsolutePath string, err error) {
+	once.Do(func() {
+		initErr = initWin32API()
+	})
+	if initErr != nil {
+		return 0, "", "", initErr
+	}
+	isLocal, err := IsLocal(dest.Address.IP())
+	if err != nil {
+		return 0, "", "", errors.New("failed to determine if address is local: ", err)
+	}
+	if !isLocal {
+		return 0, "", "", ErrNotLocal
+	}
+	if dest.Network != Network_TCP && dest.Network != Network_UDP {
+		panic("Unsupported network type for process lookup.")
+	}
+	// the core should never has a domain as source(?
+	if dest.Address.Family() == AddressFamilyDomain {
+		panic("Domain addresses are not supported for process lookup.")
+	}
+	var class int
+	var fn uintptr
+	switch dest.Network {
+	case Network_TCP:
+		fn = getExTCPTable
+		class = tcpTablePidConn
+	case Network_UDP:
+		fn = getExUDPTable
+		class = udpTablePid
+	default:
+		panic("Unsupported network type for process lookup.")
+	}
+	ip := dest.Address.IP()
+	port := int(dest.Port)
+
+	addr, ok := netip.AddrFromSlice(ip)
+	if !ok {
+		return 0, "", "", errors.New("invalid IP address")
+	}
+	addr = addr.Unmap()
+
+	family := windows.AF_INET
+	if addr.Is6() {
+		family = windows.AF_INET6
+	}
+
+	buf, err := getTransportTable(fn, family, class)
+	if err != nil {
+		return 0, "", "", err
+	}
+
+	s := newSearcher(dest.Network, dest.Address.Family())
+
+	pid, err := s.Search(buf, addr, uint16(port))
+	if err != nil {
+		return 0, "", "", err
+	}
+	NameWithPath, err := getExecPathFromPID(pid)
+	NameWithPath = filepath.ToSlash(NameWithPath)
+
+	// drop .exe and path
+	nameSplit := strings.Split(NameWithPath, "/")
+	procName := nameSplit[len(nameSplit)-1]
+	procName = strings.TrimSuffix(procName, ".exe")
+	return int(pid), procName, NameWithPath, err
+}
+
+type searcher struct {
+	itemSize int
+	port     int
+	ip       int
+	ipSize   int
+	pid      int
+	tcpState int
+}
+
+func (s *searcher) Search(b []byte, ip netip.Addr, port uint16) (uint32, error) {
+	n := int(readNativeUint32(b[:4]))
+	itemSize := s.itemSize
+	for i := range n {
+		row := b[4+itemSize*i : 4+itemSize*(i+1)]
+
+		if s.tcpState >= 0 {
+			tcpState := readNativeUint32(row[s.tcpState : s.tcpState+4])
+			// MIB_TCP_STATE_ESTAB, only check established connections for TCP
+			if tcpState != 5 {
+				continue
+			}
+		}
+
+		// according to MSDN, only the lower 16 bits of dwLocalPort are used and the port number is in network endian.
+		// this field can be illustrated as follows depends on different machine endianess:
+		//     little endian: [ MSB LSB  0   0  ]   interpret as native uint32 is ((LSB<<8)|MSB)
+		//       big  endian: [  0   0  MSB LSB ]   interpret as native uint32 is ((MSB<<8)|LSB)
+		// so we need an syscall.Ntohs on the lower 16 bits after read the port as native uint32
+		srcPort := syscall.Ntohs(uint16(readNativeUint32(row[s.port : s.port+4])))
+		if srcPort != port {
+			continue
+		}
+
+		srcIP, _ := netip.AddrFromSlice(row[s.ip : s.ip+s.ipSize])
+		srcIP = srcIP.Unmap()
+		// windows binds an unbound udp socket to 0.0.0.0/[::] while first sendto
+		if ip != srcIP && (!srcIP.IsUnspecified() || s.tcpState != -1) {
+			continue
+		}
+
+		pid := readNativeUint32(row[s.pid : s.pid+4])
+		return pid, nil
+	}
+	return 0, errors.New("not found")
+}
+
+func newSearcher(network Network, family AddressFamily) *searcher {
+	var itemSize, port, ip, ipSize, pid int
+	tcpState := -1
+	switch network {
+	case Network_TCP:
+		if family == AddressFamilyIPv4 {
+			// struct MIB_TCPROW_OWNER_PID
+			itemSize, port, ip, ipSize, pid, tcpState = 24, 8, 4, 4, 20, 0
+		}
+		if family == AddressFamilyIPv6 {
+			// struct MIB_TCP6ROW_OWNER_PID
+			itemSize, port, ip, ipSize, pid, tcpState = 56, 20, 0, 16, 52, 48
+		}
+	case Network_UDP:
+		if family == AddressFamilyIPv4 {
+			// struct MIB_UDPROW_OWNER_PID
+			itemSize, port, ip, ipSize, pid = 12, 4, 0, 4, 8
+		}
+		if family == AddressFamilyIPv6 {
+			// struct MIB_UDP6ROW_OWNER_PID
+			itemSize, port, ip, ipSize, pid = 28, 20, 0, 16, 24
+		}
+	}
+
+	return &searcher{
+		itemSize: itemSize,
+		port:     port,
+		ip:       ip,
+		ipSize:   ipSize,
+		pid:      pid,
+		tcpState: tcpState,
+	}
+}
+
+func getTransportTable(fn uintptr, family int, class int) ([]byte, error) {
+	for size, buf := uint32(8), make([]byte, 8); ; {
+		ptr := unsafe.Pointer(&buf[0])
+		err, _, _ := syscall.Syscall6(fn, 6, uintptr(ptr), uintptr(unsafe.Pointer(&size)), 0, uintptr(family), uintptr(class), 0)
+
+		switch err {
+		case 0:
+			return buf, nil
+		case uintptr(syscall.ERROR_INSUFFICIENT_BUFFER):
+			buf = make([]byte, size)
+		default:
+			return nil, errors.New("syscall error: ", int(err))
+		}
+	}
+}
+
+func readNativeUint32(b []byte) uint32 {
+	return *(*uint32)(unsafe.Pointer(&b[0]))
+}
+
+func getExecPathFromPID(pid uint32) (string, error) {
+	// kernel process starts with a colon in order to distinguish with normal processes
+	switch pid {
+	case 0:
+		// reserved pid for system idle process
+		return ":System Idle Process", nil
+	case 4:
+		// reserved pid for windows kernel image
+		return ":System", nil
+	}
+	h, err := windows.OpenProcess(windows.PROCESS_QUERY_LIMITED_INFORMATION, false, pid)
+	if err != nil {
+		return "", err
+	}
+	defer windows.CloseHandle(h)
+
+	buf := make([]uint16, syscall.MAX_LONG_PATH)
+	size := uint32(len(buf))
+	err = windows.QueryFullProcessImageName(h, 0, &buf[0], &size)
+	if err != nil {
+		return "", err
+	}
+	return syscall.UTF16ToString(buf[:size]), nil
+}

common/net/net.go

@@ -1,7 +1,13 @@
 // 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"
+import (
+	"net"
+	"sync/atomic"
+	"time"
+
+	"github.com/xtls/xray-core/common/errors"
+)
 
 // 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.
@@ -12,3 +18,37 @@ const QuicgoH3KeepAlivePeriod = 10 * time.Second
 
 // consistent with chrome
 const ChromeH2KeepAlivePeriod = 45 * time.Second
+
+var ErrNotLocal = errors.New("the source address is not from local machine.")
+
+type localIPCacheEntry struct {
+	addrs      []net.Addr
+	lastUpdate time.Time
+}
+
+var localIPCache = atomic.Pointer[localIPCacheEntry]{}
+
+func IsLocal(ip net.IP) (bool, error) {
+	var addrs []net.Addr
+	if entry := localIPCache.Load(); entry == nil || time.Since(entry.lastUpdate) > time.Minute {
+		var err error
+		addrs, err = net.InterfaceAddrs()
+		if err != nil {
+			return false, err
+		}
+		localIPCache.Store(&localIPCacheEntry{
+			addrs:      addrs,
+			lastUpdate: time.Now(),
+		})
+	} else {
+		addrs = entry.addrs
+	}
+	for _, addr := range addrs {
+		if ipnet, ok := addr.(*net.IPNet); ok {
+			if ipnet.IP.Equal(ip) {
+				return true, nil
+			}
+		}
+	}
+	return false, nil
+}

common/net/port.go

@@ -87,6 +87,16 @@ func PortListFromProto(l *PortList) MemoryPortList {
 	return mpl
 }
 
+func (l *PortList) Ports() []uint32 {
+	var ports []uint32
+	for _, r := range l.Range {
+		for i := uint32(r.From); i <= uint32(r.To); i++ {
+			ports = append(ports, i)
+		}
+	}
+	return ports
+}
+
 func (mpl MemoryPortList) Contains(port Port) bool {
 	for _, pr := range mpl {
 		if pr.Contains(port) {

common/net/system.go

@@ -12,6 +12,8 @@ var (
 
 type ListenConfig = net.ListenConfig
 
+type KeepAliveConfig = net.KeepAliveConfig
+
 var (
 	Listen     = net.Listen
 	ListenTCP  = net.ListenTCP
@@ -26,6 +28,12 @@ var FileConn = net.FileConn
 // ParseIP is an alias of net.ParseIP
 var ParseIP = net.ParseIP
 
+var ParseCIDR = net.ParseCIDR
+
+var ResolveIPAddr = net.ResolveIPAddr
+
+var InterfaceByName = net.InterfaceByName
+
 var SplitHostPort = net.SplitHostPort
 
 var CIDRMask = net.CIDRMask
@@ -51,6 +59,8 @@ type (
 	UnixConn = net.UnixConn
 )
 
+type IPAddr = net.IPAddr
+
 // IP is an alias for net.IP.
 type (
 	IP     = net.IP
@@ -82,3 +92,11 @@ var (
 )
 
 type Resolver = net.Resolver
+
+var DefaultResolver = net.DefaultResolver
+
+var JoinHostPort = net.JoinHostPort
+
+var InterfaceAddrs = net.InterfaceAddrs
+
+var Interfaces = net.Interfaces

common/platform/ctlcmd/attr_other.go

@@ -1,10 +0,0 @@
-//go:build !windows
-// +build !windows
-
-package ctlcmd
-
-import "syscall"
-
-func getSysProcAttr() *syscall.SysProcAttr {
-	return nil
-}

common/platform/ctlcmd/attr_windows.go

@@ -1,12 +0,0 @@
-//go:build windows
-// +build windows
-
-package ctlcmd
-
-import "syscall"
-
-func getSysProcAttr() *syscall.SysProcAttr {
-	return &syscall.SysProcAttr{
-		HideWindow: true,
-	}
-}

common/platform/ctlcmd/ctlcmd.go

@@ -1,50 +0,0 @@
-package ctlcmd
-
-import (
-	"context"
-	"io"
-	"os"
-	"os/exec"
-	"strings"
-
-	"github.com/xtls/xray-core/common/buf"
-	"github.com/xtls/xray-core/common/errors"
-	"github.com/xtls/xray-core/common/platform"
-)
-
-func Run(args []string, input io.Reader) (buf.MultiBuffer, error) {
-	xctl := platform.GetToolLocation("xctl")
-	if _, err := os.Stat(xctl); err != nil {
-		return nil, errors.New("xctl doesn't exist").Base(err)
-	}
-
-	var errBuffer buf.MultiBufferContainer
-	var outBuffer buf.MultiBufferContainer
-
-	cmd := exec.Command(xctl, args...)
-	cmd.Stderr = &errBuffer
-	cmd.Stdout = &outBuffer
-	cmd.SysProcAttr = getSysProcAttr()
-	if input != nil {
-		cmd.Stdin = input
-	}
-
-	if err := cmd.Start(); err != nil {
-		return nil, errors.New("failed to start xctl").Base(err)
-	}
-
-	if err := cmd.Wait(); err != nil {
-		msg := "failed to execute xctl"
-		if errBuffer.Len() > 0 {
-			msg += ": \n" + strings.TrimSpace(errBuffer.MultiBuffer.String())
-		}
-		return nil, errors.New(msg).Base(err)
-	}
-
-	// log stderr, info message
-	if !errBuffer.IsEmpty() {
-		errors.LogInfo(context.Background(), "<xctl message> \n", strings.TrimSpace(errBuffer.MultiBuffer.String()))
-	}
-
-	return outBuffer.MultiBuffer, nil
-}

common/platform/filesystem/file.go

@@ -29,6 +29,10 @@ func ReadAsset(file string) ([]byte, error) {
 	return ReadFile(platform.GetAssetLocation(file))
 }
 
+func OpenAsset(file string) (io.ReadCloser, error) {
+	return NewFileReader(platform.GetAssetLocation(file))
+}
+
 func ReadCert(file string) ([]byte, error) {
 	if filepath.IsAbs(file) {
 		return ReadFile(file)

common/platform/others.go

@@ -8,19 +8,10 @@ import (
 	"path/filepath"
 )
 
-func ExpandEnv(s string) string {
-	return os.ExpandEnv(s)
-}
-
 func LineSeparator() string {
 	return "\n"
 }
 
-func GetToolLocation(file string) string {
-	toolPath := NewEnvFlag(ToolLocation).GetValue(getExecutableDir)
-	return filepath.Join(toolPath, file)
-}
-
 // GetAssetLocation searches for `file` in the env dir, the executable dir, and certain locations
 func GetAssetLocation(file string) string {
 	assetPath := NewEnvFlag(AssetLocation).GetValue(getExecutableDir)

common/platform/platform.go

@@ -8,10 +8,8 @@ import (
 )
 
 const (
-	PluginLocation  = "xray.location.plugin"
 	ConfigLocation  = "xray.location.config"
 	ConfdirLocation = "xray.location.confdir"
-	ToolLocation    = "xray.location.tool"
 	AssetLocation   = "xray.location.asset"
 	CertLocation    = "xray.location.cert"
 
@@ -24,6 +22,8 @@ const (
 	BrowserDialerAddress = "xray.browser.dialer"
 	XUDPLog              = "xray.xudp.show"
 	XUDPBaseKey          = "xray.xudp.basekey"
+
+	TunFdKey = "xray.tun.fd"
 )
 
 type EnvFlag struct {
@@ -79,17 +79,6 @@ func getExecutableDir() string {
 	return filepath.Dir(exec)
 }
 
-func getExecutableSubDir(dir string) func() string {
-	return func() string {
-		return filepath.Join(getExecutableDir(), dir)
-	}
-}
-
-func GetPluginDirectory() string {
-	pluginDir := NewEnvFlag(PluginLocation).GetValue(getExecutableSubDir("plugins"))
-	return pluginDir
-}
-
 func GetConfigurationPath() string {
 	configPath := NewEnvFlag(ConfigLocation).GetValue(getExecutableDir)
 	return filepath.Join(configPath, "config.json")

common/platform/windows.go

@@ -5,20 +5,10 @@ package platform
 
 import "path/filepath"
 
-func ExpandEnv(s string) string {
-	// TODO
-	return s
-}
-
 func LineSeparator() string {
 	return "\r\n"
 }
 
-func GetToolLocation(file string) string {
-	toolPath := NewEnvFlag(ToolLocation).GetValue(getExecutableDir)
-	return filepath.Join(toolPath, file+".exe")
-}
-
 // GetAssetLocation searches for `file` in the env dir and the executable dir
 func GetAssetLocation(file string) string {
 	assetPath := NewEnvFlag(AssetLocation).GetValue(getExecutableDir)

common/protocol/headers.go

@@ -5,7 +5,6 @@ import (
 
 	"github.com/xtls/xray-core/common/bitmask"
 	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/common/uuid"
 	"golang.org/x/sys/cpu"
 )
 
@@ -16,11 +15,12 @@ const (
 	RequestCommandTCP = RequestCommand(0x01)
 	RequestCommandUDP = RequestCommand(0x02)
 	RequestCommandMux = RequestCommand(0x03)
+	RequestCommandRvs = RequestCommand(0x04)
 )
 
 func (c RequestCommand) TransferType() TransferType {
 	switch c {
-	case RequestCommandTCP, RequestCommandMux:
+	case RequestCommandTCP, RequestCommandMux, RequestCommandRvs:
 		return TransferTypeStream
 	case RequestCommandUDP:
 		return TransferTypePacket
@@ -70,29 +70,19 @@ type ResponseHeader struct {
 	Command ResponseCommand
 }
 
-type CommandSwitchAccount struct {
-	Host     net.Address
-	Port     net.Port
-	ID       uuid.UUID
-	Level    uint32
-	ValidMin byte
-}
-
 var (
-	hasGCMAsmAMD64 = cpu.X86.HasAES && cpu.X86.HasPCLMULQDQ
-	hasGCMAsmARM64 = cpu.ARM64.HasAES && cpu.ARM64.HasPMULL
-	// Keep in sync with crypto/aes/cipher_s390x.go.
-	hasGCMAsmS390X = cpu.S390X.HasAES && cpu.S390X.HasAESCBC && cpu.S390X.HasAESCTR &&
-		(cpu.S390X.HasGHASH || cpu.S390X.HasAESGCM)
+	// Keep in sync with crypto/tls/cipher_suites.go.
+	hasGCMAsmAMD64 = cpu.X86.HasAES && cpu.X86.HasPCLMULQDQ && cpu.X86.HasSSE41 && cpu.X86.HasSSSE3
+	hasGCMAsmARM64 = (cpu.ARM64.HasAES && cpu.ARM64.HasPMULL) || (runtime.GOOS == "darwin" && runtime.GOARCH == "arm64")
+	hasGCMAsmS390X = cpu.S390X.HasAES && cpu.S390X.HasAESCTR && cpu.S390X.HasGHASH
+	hasGCMAsmPPC64 = runtime.GOARCH == "ppc64" || runtime.GOARCH == "ppc64le"
 
-	hasAESGCMHardwareSupport = runtime.GOARCH == "amd64" && hasGCMAsmAMD64 ||
-		runtime.GOARCH == "arm64" && hasGCMAsmARM64 ||
-		runtime.GOARCH == "s390x" && hasGCMAsmS390X
+	HasAESGCMHardwareSupport = hasGCMAsmAMD64 || hasGCMAsmARM64 || hasGCMAsmS390X || hasGCMAsmPPC64
 )
 
 func (sc *SecurityConfig) GetSecurityType() SecurityType {
 	if sc == nil || sc.Type == SecurityType_AUTO {
-		if hasAESGCMHardwareSupport {
+		if HasAESGCMHardwareSupport {
 			return SecurityType_AES128_GCM
 		}
 		return SecurityType_CHACHA20_POLY1305

common/protocol/quic/sniff.go

@@ -7,7 +7,7 @@ import (
 	"encoding/binary"
 	"io"
 
-	"github.com/quic-go/quic-go/quicvarint"
+	"github.com/apernet/quic-go/quicvarint"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/errors"

common/protocol/server_picker.go

@@ -1,89 +0,0 @@
-package protocol
-
-import (
-	"sync"
-)
-
-type ServerList struct {
-	sync.RWMutex
-	servers []*ServerSpec
-}
-
-func NewServerList() *ServerList {
-	return &ServerList{}
-}
-
-func (sl *ServerList) AddServer(server *ServerSpec) {
-	sl.Lock()
-	defer sl.Unlock()
-
-	sl.servers = append(sl.servers, server)
-}
-
-func (sl *ServerList) Size() uint32 {
-	sl.RLock()
-	defer sl.RUnlock()
-
-	return uint32(len(sl.servers))
-}
-
-func (sl *ServerList) GetServer(idx uint32) *ServerSpec {
-	sl.Lock()
-	defer sl.Unlock()
-
-	for {
-		if idx >= uint32(len(sl.servers)) {
-			return nil
-		}
-
-		server := sl.servers[idx]
-		if !server.IsValid() {
-			sl.removeServer(idx)
-			continue
-		}
-
-		return server
-	}
-}
-
-func (sl *ServerList) removeServer(idx uint32) {
-	n := len(sl.servers)
-	sl.servers[idx] = sl.servers[n-1]
-	sl.servers = sl.servers[:n-1]
-}
-
-type ServerPicker interface {
-	PickServer() *ServerSpec
-}
-
-type RoundRobinServerPicker struct {
-	sync.Mutex
-	serverlist *ServerList
-	nextIndex  uint32
-}
-
-func NewRoundRobinServerPicker(serverlist *ServerList) *RoundRobinServerPicker {
-	return &RoundRobinServerPicker{
-		serverlist: serverlist,
-		nextIndex:  0,
-	}
-}
-
-func (p *RoundRobinServerPicker) PickServer() *ServerSpec {
-	p.Lock()
-	defer p.Unlock()
-
-	next := p.nextIndex
-	server := p.serverlist.GetServer(next)
-	if server == nil {
-		next = 0
-		server = p.serverlist.GetServer(0)
-	}
-	next++
-	if next >= p.serverlist.Size() {
-		next = 0
-	}
-	p.nextIndex = next
-
-	return server
-}

common/protocol/server_picker_test.go

@@ -1,71 +0,0 @@
-package protocol_test
-
-import (
-	"testing"
-	"time"
-
-	"github.com/xtls/xray-core/common/net"
-	. "github.com/xtls/xray-core/common/protocol"
-)
-
-func TestServerList(t *testing.T) {
-	list := NewServerList()
-	list.AddServer(NewServerSpec(net.TCPDestination(net.LocalHostIP, net.Port(1)), AlwaysValid()))
-	if list.Size() != 1 {
-		t.Error("list size: ", list.Size())
-	}
-	list.AddServer(NewServerSpec(net.TCPDestination(net.LocalHostIP, net.Port(2)), BeforeTime(time.Now().Add(time.Second))))
-	if list.Size() != 2 {
-		t.Error("list.size: ", list.Size())
-	}
-
-	server := list.GetServer(1)
-	if server.Destination().Port != 2 {
-		t.Error("server: ", server.Destination())
-	}
-	time.Sleep(2 * time.Second)
-	server = list.GetServer(1)
-	if server != nil {
-		t.Error("server: ", server)
-	}
-
-	server = list.GetServer(0)
-	if server.Destination().Port != 1 {
-		t.Error("server: ", server.Destination())
-	}
-}
-
-func TestServerPicker(t *testing.T) {
-	list := NewServerList()
-	list.AddServer(NewServerSpec(net.TCPDestination(net.LocalHostIP, net.Port(1)), AlwaysValid()))
-	list.AddServer(NewServerSpec(net.TCPDestination(net.LocalHostIP, net.Port(2)), BeforeTime(time.Now().Add(time.Second))))
-	list.AddServer(NewServerSpec(net.TCPDestination(net.LocalHostIP, net.Port(3)), BeforeTime(time.Now().Add(time.Second))))
-
-	picker := NewRoundRobinServerPicker(list)
-	server := picker.PickServer()
-	if server.Destination().Port != 1 {
-		t.Error("server: ", server.Destination())
-	}
-	server = picker.PickServer()
-	if server.Destination().Port != 2 {
-		t.Error("server: ", server.Destination())
-	}
-	server = picker.PickServer()
-	if server.Destination().Port != 3 {
-		t.Error("server: ", server.Destination())
-	}
-	server = picker.PickServer()
-	if server.Destination().Port != 1 {
-		t.Error("server: ", server.Destination())
-	}
-
-	time.Sleep(2 * time.Second)
-	server = picker.PickServer()
-	if server.Destination().Port != 1 {
-		t.Error("server: ", server.Destination())
-	}
-	server = picker.PickServer()
-	if server.Destination().Port != 1 {
-		t.Error("server: ", server.Destination())
-	}
-}

common/protocol/server_spec.go

@@ -1,122 +1,30 @@
 package protocol
 
 import (
-	"sync"
-	"time"
-
-	"github.com/xtls/xray-core/common/dice"
 	"github.com/xtls/xray-core/common/net"
 )
 
-type ValidationStrategy interface {
-	IsValid() bool
-	Invalidate()
-}
-
-type alwaysValidStrategy struct{}
-
-func AlwaysValid() ValidationStrategy {
-	return alwaysValidStrategy{}
-}
-
-func (alwaysValidStrategy) IsValid() bool {
-	return true
-}
-
-func (alwaysValidStrategy) Invalidate() {}
-
-type timeoutValidStrategy struct {
-	until time.Time
-}
-
-func BeforeTime(t time.Time) ValidationStrategy {
-	return &timeoutValidStrategy{
-		until: t,
-	}
-}
-
-func (s *timeoutValidStrategy) IsValid() bool {
-	return s.until.After(time.Now())
-}
-
-func (s *timeoutValidStrategy) Invalidate() {
-	s.until = time.Time{}
-}
-
 type ServerSpec struct {
-	sync.RWMutex
-	dest  net.Destination
-	users []*MemoryUser
-	valid ValidationStrategy
+	Destination  net.Destination
+	User         *MemoryUser
 }
 
-func NewServerSpec(dest net.Destination, valid ValidationStrategy, users ...*MemoryUser) *ServerSpec {
+func NewServerSpec(dest net.Destination, user *MemoryUser) *ServerSpec {
 	return &ServerSpec{
-		dest:  dest,
-		users: users,
-		valid: valid,
+		Destination: dest,
+		User:        user,
 	}
 }
 
 func NewServerSpecFromPB(spec *ServerEndpoint) (*ServerSpec, error) {
 	dest := net.TCPDestination(spec.Address.AsAddress(), net.Port(spec.Port))
-	mUsers := make([]*MemoryUser, len(spec.User))
-	for idx, u := range spec.User {
-		mUser, err := u.ToMemoryUser()
+	var dUser *MemoryUser
+	if spec.User != nil {
+		user, err := spec.User.ToMemoryUser()
 		if err != nil {
 			return nil, err
 		}
-		mUsers[idx] = mUser
+		dUser = user
 	}
-	return NewServerSpec(dest, AlwaysValid(), mUsers...), nil
-}
-
-func (s *ServerSpec) Destination() net.Destination {
-	return s.dest
-}
-
-func (s *ServerSpec) HasUser(user *MemoryUser) bool {
-	s.RLock()
-	defer s.RUnlock()
-
-	for _, u := range s.users {
-		if u.Account.Equals(user.Account) {
-			return true
-		}
-	}
-	return false
-}
-
-func (s *ServerSpec) AddUser(user *MemoryUser) {
-	if s.HasUser(user) {
-		return
-	}
-
-	s.Lock()
-	defer s.Unlock()
-
-	s.users = append(s.users, user)
-}
-
-func (s *ServerSpec) PickUser() *MemoryUser {
-	s.RLock()
-	defer s.RUnlock()
-
-	userCount := len(s.users)
-	switch userCount {
-	case 0:
-		return nil
-	case 1:
-		return s.users[0]
-	default:
-		return s.users[dice.Roll(userCount)]
-	}
-}
-
-func (s *ServerSpec) IsValid() bool {
-	return s.valid.IsValid()
-}
-
-func (s *ServerSpec) Invalidate() {
-	s.valid.Invalidate()
+	return NewServerSpec(dest, dUser), nil
 }

common/protocol/server_spec.pb.go

@@ -28,7 +28,7 @@ type ServerEndpoint struct {
 
 	Address *net.IPOrDomain `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"`
 	Port    uint32          `protobuf:"varint,2,opt,name=port,proto3" json:"port,omitempty"`
-	User    []*User         `protobuf:"bytes,3,rep,name=user,proto3" json:"user,omitempty"`
+	User    *User           `protobuf:"bytes,3,opt,name=user,proto3" json:"user,omitempty"`
 }
 
 func (x *ServerEndpoint) Reset() {
@@ -75,7 +75,7 @@ func (x *ServerEndpoint) GetPort() uint32 {
 	return 0
 }
 
-func (x *ServerEndpoint) GetUser() []*User {
+func (x *ServerEndpoint) GetUser() *User {
 	if x != nil {
 		return x.User
 	}
@@ -98,7 +98,7 @@ var file_common_protocol_server_spec_proto_rawDesc = []byte{
 	0x6e, 0x2e, 0x6e, 0x65, 0x74, 0x2e, 0x49, 0x50, 0x4f, 0x72, 0x44, 0x6f, 0x6d, 0x61, 0x69, 0x6e,
 	0x52, 0x07, 0x61, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x12, 0x12, 0x0a, 0x04, 0x70, 0x6f, 0x72,
 	0x74, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x04, 0x70, 0x6f, 0x72, 0x74, 0x12, 0x2e, 0x0a,
-	0x04, 0x75, 0x73, 0x65, 0x72, 0x18, 0x03, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x1a, 0x2e, 0x78, 0x72,
+	0x04, 0x75, 0x73, 0x65, 0x72, 0x18, 0x03, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x1a, 0x2e, 0x78, 0x72,
 	0x61, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x63,
 	0x6f, 0x6c, 0x2e, 0x55, 0x73, 0x65, 0x72, 0x52, 0x04, 0x75, 0x73, 0x65, 0x72, 0x42, 0x5e, 0x0a,
 	0x18, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e,

common/protocol/server_spec.proto

@@ -12,5 +12,5 @@ import "common/protocol/user.proto";
 message ServerEndpoint {
   xray.common.net.IPOrDomain address = 1;
   uint32 port = 2;
-  repeated xray.common.protocol.User user = 3;
+  xray.common.protocol.User user = 3;
 }

common/protocol/server_spec_test.go

@@ -1,79 +0,0 @@
-package protocol_test
-
-import (
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/net"
-	. "github.com/xtls/xray-core/common/protocol"
-	"github.com/xtls/xray-core/common/uuid"
-	"github.com/xtls/xray-core/proxy/vmess"
-)
-
-func TestAlwaysValidStrategy(t *testing.T) {
-	strategy := AlwaysValid()
-	if !strategy.IsValid() {
-		t.Error("strategy not valid")
-	}
-	strategy.Invalidate()
-	if !strategy.IsValid() {
-		t.Error("strategy not valid")
-	}
-}
-
-func TestTimeoutValidStrategy(t *testing.T) {
-	strategy := BeforeTime(time.Now().Add(2 * time.Second))
-	if !strategy.IsValid() {
-		t.Error("strategy not valid")
-	}
-	time.Sleep(3 * time.Second)
-	if strategy.IsValid() {
-		t.Error("strategy is valid")
-	}
-
-	strategy = BeforeTime(time.Now().Add(2 * time.Second))
-	strategy.Invalidate()
-	if strategy.IsValid() {
-		t.Error("strategy is valid")
-	}
-}
-
-func TestUserInServerSpec(t *testing.T) {
-	uuid1 := uuid.New()
-	uuid2 := uuid.New()
-
-	toAccount := func(a *vmess.Account) Account {
-		account, err := a.AsAccount()
-		common.Must(err)
-		return account
-	}
-
-	spec := NewServerSpec(net.Destination{}, AlwaysValid(), &MemoryUser{
-		Email:   "test1@example.com",
-		Account: toAccount(&vmess.Account{Id: uuid1.String()}),
-	})
-	if spec.HasUser(&MemoryUser{
-		Email:   "test1@example.com",
-		Account: toAccount(&vmess.Account{Id: uuid2.String()}),
-	}) {
-		t.Error("has user: ", uuid2)
-	}
-
-	spec.AddUser(&MemoryUser{Email: "test2@example.com"})
-	if !spec.HasUser(&MemoryUser{
-		Email:   "test1@example.com",
-		Account: toAccount(&vmess.Account{Id: uuid1.String()}),
-	}) {
-		t.Error("not having user: ", uuid1)
-	}
-}
-
-func TestPickUser(t *testing.T) {
-	spec := NewServerSpec(net.Destination{}, AlwaysValid(), &MemoryUser{Email: "test1@example.com"}, &MemoryUser{Email: "test2@example.com"}, &MemoryUser{Email: "test3@example.com"})
-	user := spec.PickUser()
-	if !strings.HasSuffix(user.Email, "@example.com") {
-		t.Error("user: ", user.Email)
-	}
-}