TUN inbound: Close connection when handling is done (#5531)

https://github.com/XTLS/Xray-core/pull/5531#issuecomment-3744446015

.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: |
@@ -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-${{ env.ASSET_NAME }}
-
-      - name: Upload files to Artifacts
-        uses: actions/upload-artifact@v5
-        with:
-          name: Xray-${{ 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: |
@@ -34,6 +40,18 @@ 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'
@@ -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'
@@ -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-${{ env.ASSET_NAME }}
-
-      - name: Upload files to Artifacts
-        uses: actions/upload-artifact@v5
-        with:
-          name: Xray-${{ 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@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

@@ -4,12 +4,25 @@
 
 [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**
@@ -43,13 +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:**
-  - [X-Panel](https://github.com/xeefei/X-Panel)
-  - [PasarGuard](https://github.com/PasarGuard/panel)
+- 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)
@@ -108,12 +123,14 @@
   - [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...
 

app/dispatcher/default.go

@@ -196,7 +196,7 @@ func (d *DefaultDispatcher) getLink(ctx context.Context) (*transport.Link, *tran
 	return inboundLink, outboundLink
 }
 
-func (d *DefaultDispatcher) WrapLink(ctx context.Context, link *transport.Link) *transport.Link {
+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 {
@@ -206,16 +206,16 @@ func (d *DefaultDispatcher) WrapLink(ctx context.Context, link *transport.Link)
 	link.Reader = &buf.TimeoutWrapperReader{Reader: link.Reader}
 
 	if user != nil && len(user.Email) > 0 {
-		p := d.policy.ForLevel(user.Level)
+		p := policyManager.ForLevel(user.Level)
 		if p.Stats.UserUplink {
 			name := "user>>>" + user.Email + ">>>traffic>>>uplink"
-			if c, _ := stats.GetOrRegisterCounter(d.stats, name); c != nil {
+			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(d.stats, name); c != nil {
+			if c, _ := stats.GetOrRegisterCounter(statsManager, name); c != nil {
 				link.Writer = &SizeStatWriter{
 					Counter: c,
 					Writer:  link.Writer,
@@ -224,7 +224,7 @@ func (d *DefaultDispatcher) WrapLink(ctx context.Context, link *transport.Link)
 		}
 		if p.Stats.UserOnline {
 			name := "user>>>" + user.Email + ">>>online"
-			if om, _ := stats.GetOrRegisterOnlineMap(d.stats, name); om != nil {
+			if om, _ := stats.GetOrRegisterOnlineMap(statsManager, name); om != nil {
 				sessionInbounds := session.InboundFromContext(ctx)
 				userIP := sessionInbounds.Source.Address.String()
 				om.AddIP(userIP)
@@ -357,7 +357,7 @@ func (d *DefaultDispatcher) DispatchLink(ctx context.Context, destination net.De
 		content = new(session.Content)
 		ctx = session.ContextWithContent(ctx, content)
 	}
-	outbound = d.WrapLink(ctx, outbound)
+	outbound = WrapLink(ctx, d.policy, d.stats, outbound)
 	sniffingRequest := content.SniffingRequest
 	if !sniffingRequest.Enabled {
 		d.routedDispatch(ctx, outbound, destination)
@@ -449,6 +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]

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{
 	0x2e, 0x64, 0x6e, 0x73, 0x1a, 0x1c, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2f, 0x6e, 0x65, 0x74,
 	0x2f, 0x64, 0x65, 0x73, 0x74, 0x69, 0x6e, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f,
 	0x74, 0x6f, 0x1a, 0x17, 0x61, 0x70, 0x70, 0x2f, 0x72, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x2f, 0x63,
-	0x6f, 0x6e, 0x66, 0x69, 0x67, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0xb6, 0x06, 0x0a, 0x0a,
+	0x6f, 0x6e, 0x66, 0x69, 0x67, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0xdf, 0x07, 0x0a, 0x0a,
 	0x4e, 0x61, 0x6d, 0x65, 0x53, 0x65, 0x72, 0x76, 0x65, 0x72, 0x12, 0x33, 0x0a, 0x07, 0x61, 0x64,
 	0x64, 0x72, 0x65, 0x73, 0x73, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x19, 0x2e, 0x78, 0x72,
 	0x61, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x6e, 0x65, 0x74, 0x2e, 0x45, 0x6e,
@@ -599,74 +647,93 @@ var file_app_dns_config_proto_rawDesc = []byte{
 	0x50, 0x72, 0x69, 0x6f, 0x72, 0x12, 0x10, 0x0a, 0x03, 0x74, 0x61, 0x67, 0x18, 0x09, 0x20, 0x01,
 	0x28, 0x09, 0x52, 0x03, 0x74, 0x61, 0x67, 0x12, 0x1c, 0x0a, 0x09, 0x74, 0x69, 0x6d, 0x65, 0x6f,
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+	0x61, 0x63, 0x6b, 0x12, 0x36, 0x0a, 0x16, 0x64, 0x69, 0x73, 0x61, 0x62, 0x6c, 0x65, 0x46, 0x61,
+	0x6c, 0x6c, 0x62, 0x61, 0x63, 0x6b, 0x49, 0x66, 0x4d, 0x61, 0x74, 0x63, 0x68, 0x18, 0x0b, 0x20,
+	0x01, 0x28, 0x08, 0x52, 0x16, 0x64, 0x69, 0x73, 0x61, 0x62, 0x6c, 0x65, 0x46, 0x61, 0x6c, 0x6c,
+	0x62, 0x61, 0x63, 0x6b, 0x49, 0x66, 0x4d, 0x61, 0x74, 0x63, 0x68, 0x12, 0x30, 0x0a, 0x13, 0x65,
+	0x6e, 0x61, 0x62, 0x6c, 0x65, 0x50, 0x61, 0x72, 0x61, 0x6c, 0x6c, 0x65, 0x6c, 0x51, 0x75, 0x65,
+	0x72, 0x79, 0x18, 0x0e, 0x20, 0x01, 0x28, 0x08, 0x52, 0x13, 0x65, 0x6e, 0x61, 0x62, 0x6c, 0x65,
+	0x50, 0x61, 0x72, 0x61, 0x6c, 0x6c, 0x65, 0x6c, 0x51, 0x75, 0x65, 0x72, 0x79, 0x1a, 0x92, 0x01,
+	0x0a, 0x0b, 0x48, 0x6f, 0x73, 0x74, 0x4d, 0x61, 0x70, 0x70, 0x69, 0x6e, 0x67, 0x12, 0x34, 0x0a,
+	0x04, 0x74, 0x79, 0x70, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0e, 0x32, 0x20, 0x2e, 0x78, 0x72,
+	0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x64, 0x6e, 0x73, 0x2e, 0x44, 0x6f, 0x6d, 0x61, 0x69,
+	0x6e, 0x4d, 0x61, 0x74, 0x63, 0x68, 0x69, 0x6e, 0x67, 0x54, 0x79, 0x70, 0x65, 0x52, 0x04, 0x74,
+	0x79, 0x70, 0x65, 0x12, 0x16, 0x0a, 0x06, 0x64, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x18, 0x02, 0x20,
+	0x01, 0x28, 0x09, 0x52, 0x06, 0x64, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x12, 0x0e, 0x0a, 0x02, 0x69,
+	0x70, 0x18, 0x03, 0x20, 0x03, 0x28, 0x0c, 0x52, 0x02, 0x69, 0x70, 0x12, 0x25, 0x0a, 0x0e, 0x70,
+	0x72, 0x6f, 0x78, 0x69, 0x65, 0x64, 0x5f, 0x64, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x18, 0x04, 0x20,
+	0x01, 0x28, 0x09, 0x52, 0x0d, 0x70, 0x72, 0x6f, 0x78, 0x69, 0x65, 0x64, 0x44, 0x6f, 0x6d, 0x61,
+	0x69, 0x6e, 0x4a, 0x04, 0x08, 0x07, 0x10, 0x08, 0x2a, 0x45, 0x0a, 0x12, 0x44, 0x6f, 0x6d, 0x61,
+	0x69, 0x6e, 0x4d, 0x61, 0x74, 0x63, 0x68, 0x69, 0x6e, 0x67, 0x54, 0x79, 0x70, 0x65, 0x12, 0x08,
+	0x0a, 0x04, 0x46, 0x75, 0x6c, 0x6c, 0x10, 0x00, 0x12, 0x0d, 0x0a, 0x09, 0x53, 0x75, 0x62, 0x64,
+	0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x10, 0x01, 0x12, 0x0b, 0x0a, 0x07, 0x4b, 0x65, 0x79, 0x77, 0x6f,
+	0x72, 0x64, 0x10, 0x02, 0x12, 0x09, 0x0a, 0x05, 0x52, 0x65, 0x67, 0x65, 0x78, 0x10, 0x03, 0x2a,
+	0x42, 0x0a, 0x0d, 0x51, 0x75, 0x65, 0x72, 0x79, 0x53, 0x74, 0x72, 0x61, 0x74, 0x65, 0x67, 0x79,
+	0x12, 0x0a, 0x0a, 0x06, 0x55, 0x53, 0x45, 0x5f, 0x49, 0x50, 0x10, 0x00, 0x12, 0x0b, 0x0a, 0x07,
+	0x55, 0x53, 0x45, 0x5f, 0x49, 0x50, 0x34, 0x10, 0x01, 0x12, 0x0b, 0x0a, 0x07, 0x55, 0x53, 0x45,
+	0x5f, 0x49, 0x50, 0x36, 0x10, 0x02, 0x12, 0x0b, 0x0a, 0x07, 0x55, 0x53, 0x45, 0x5f, 0x53, 0x59,
+	0x53, 0x10, 0x03, 0x42, 0x46, 0x0a, 0x10, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e,
+	0x61, 0x70, 0x70, 0x2e, 0x64, 0x6e, 0x73, 0x50, 0x01, 0x5a, 0x21, 0x67, 0x69, 0x74, 0x68, 0x75,
+	0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d,
+	0x63, 0x6f, 0x72, 0x65, 0x2f, 0x61, 0x70, 0x70, 0x2f, 0x64, 0x6e, 0x73, 0xaa, 0x02, 0x0c, 0x58,
+	0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x44, 0x6e, 0x73, 0x62, 0x06, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x33,
 }
 
 var (
@@ -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

@@ -5,16 +5,22 @@ import (
 	"context"
 	go_errors "errors"
 	"fmt"
+	"os"
+	"runtime"
 	"sort"
 	"strings"
 	"sync"
+	"time"
 
+	router "github.com/xtls/xray-core/app/router"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/platform/filesystem"
 	"github.com/xtls/xray-core/common/session"
 	"github.com/xtls/xray-core/common/strmatcher"
 	"github.com/xtls/xray-core/features/dns"
+	"google.golang.org/protobuf/proto"
 )
 
 // DNS is a DNS rely server.
@@ -22,6 +28,7 @@ type DNS struct {
 	sync.Mutex
 	disableFallback        bool
 	disableFallbackIfMatch bool
+	enableParallelQuery    bool
 	ipOption               *dns.IPOption
 	hosts                  *StaticHosts
 	clients                []*Client
@@ -93,6 +100,25 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 	}
 
 	for _, ns := range config.NameServer {
+		if runtime.GOOS != "windows" && runtime.GOOS != "wasm" {
+			err := parseDomains(ns)
+			if err != nil {
+				return nil, errors.New("failed to parse dns domain rules: ").Base(err)
+			}
+
+			expectedGeoip, err := router.GetGeoIPList(ns.ExpectedGeoip)
+			if err != nil {
+				return nil, errors.New("failed to parse dns expectIPs rules: ").Base(err)
+			}
+			ns.ExpectedGeoip = expectedGeoip
+
+			unexpectedGeoip, err := router.GetGeoIPList(ns.UnexpectedGeoip)
+			if err != nil {
+				return nil, errors.New("failed to parse dns unexpectedGeoip rules: ").Base(err)
+			}
+			ns.UnexpectedGeoip = unexpectedGeoip
+
+		}
 		domainRuleCount += len(ns.PrioritizedDomain)
 	}
 
@@ -102,13 +128,12 @@ 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 +142,20 @@ 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 +166,7 @@ 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 +187,7 @@ 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 +230,7 @@ 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 +266,11 @@ 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 +297,9 @@ 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 +311,9 @@ 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 +325,353 @@ 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", "192.33.4.12:53")
-	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", "[2001:500:2::c]: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
+}
+
+func parseDomains(ns *NameServer) error {
+	pureDomains := []*router.Domain{}
+
+	// convert to pure domain
+	for _, pd := range ns.PrioritizedDomain {
+		pureDomains = append(pureDomains, &router.Domain{
+			Type:  router.Domain_Type(pd.Type),
+			Value: pd.Domain,
+		})
+	}
+
+	domainList := []*router.Domain{}
+	for _, domain := range pureDomains {
+		val := strings.Split(domain.Value, "_")
+		if len(val) >= 2 {
+
+			fileName := val[0]
+			code := val[1]
+
+			bs, err := filesystem.ReadAsset(fileName)
+			if err != nil {
+				return errors.New("failed to load file: ", fileName).Base(err)
+			}
+			bs = filesystem.Find(bs, []byte(code))
+			var geosite router.GeoSite
+
+			if err := proto.Unmarshal(bs, &geosite); err != nil {
+				return errors.New("failed Unmarshal :").Base(err)
+			}
+
+			// parse attr
+			if len(val) == 3 {
+				siteWithAttr := strings.Split(val[2], ",")
+				attrs := router.ParseAttrs(siteWithAttr)
+				if !attrs.IsEmpty() {
+					filteredDomains := make([]*router.Domain, 0, len(pureDomains))
+					for _, domain := range geosite.Domain {
+						if attrs.Match(domain) {
+							filteredDomains = append(filteredDomains, domain)
+						}
+					}
+					geosite.Domain = filteredDomains
+				}
+
+			}
+
+			domainList = append(domainList, geosite.Domain...)
+
+			// update ns.OriginalRules Size
+			ruleTag := strings.Join(val, ":")
+			for i, oRule := range ns.OriginalRules {
+				if oRule.Rule == strings.ToLower(ruleTag) {
+					ns.OriginalRules[i].Size = uint32(len(geosite.Domain))
+				}
+			}
+
+		} else {
+			domainList = append(domainList, domain)
+		}
+	}
+
+	// convert back to NameServer_PriorityDomain
+	ns.PrioritizedDomain = []*NameServer_PriorityDomain{}
+	for _, pd := range domainList {
+		ns.PrioritizedDomain = append(ns.PrioritizedDomain, &NameServer_PriorityDomain{
+			Type:   ToDomainMatchingType(pd.Type),
+			Domain: pd.Value,
+		})
+	}
+
+	return nil
+}

app/dns/dns_test.go

@@ -541,7 +541,7 @@ func TestIPMatch(t *testing.T) {
 						},
 						ExpectedGeoip: []*router.GeoIP{
 							{
-								CountryCode: "local",
+								// local
 								Cidr: []*router.CIDR{
 									{
 										// inner ip, will not match
@@ -565,7 +565,7 @@ func TestIPMatch(t *testing.T) {
 						},
 						ExpectedGeoip: []*router.GeoIP{
 							{
-								CountryCode: "test",
+								// test
 								Cidr: []*router.CIDR{
 									{
 										Ip:     []byte{8, 8, 8, 8},
@@ -574,7 +574,7 @@ func TestIPMatch(t *testing.T) {
 								},
 							},
 							{
-								CountryCode: "test",
+								// test
 								Cidr: []*router.CIDR{
 									{
 										Ip:     []byte{8, 8, 8, 4},
@@ -669,7 +669,7 @@ func TestLocalDomain(t *testing.T) {
 						},
 						ExpectedGeoip: []*router.GeoIP{
 							{ // Will match localhost, localhost-a and localhost-b,
-								CountryCode: "local",
+								// local
 								Cidr: []*router.CIDR{
 									{Ip: []byte{127, 0, 0, 2}, Prefix: 32},
 									{Ip: []byte{127, 0, 0, 3}, Prefix: 32},

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/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

@@ -27,7 +27,8 @@ func NewStaticHosts(hosts []*Config_HostMapping) (*StaticHosts, error) {
 	for _, mapping := range hosts {
 		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 +47,14 @@ 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

@@ -20,6 +20,9 @@ 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 +32,8 @@ 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 +41,11 @@ 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 +55,19 @@ 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 +83,7 @@ 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 +93,17 @@ 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()
 		}
@@ -130,7 +134,8 @@ func NewClient(
 		for _, domain := range ns.PrioritizedDomain {
 			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 +152,25 @@ 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)
 		}
 
 		// 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)
 		}
 
 		// 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)
 		}
 
 		if len(clientIP) > 0 {
@@ -192,8 +192,8 @@ 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 +201,7 @@ func NewClient(
 		client.finalQuery = ns.FinalQuery
 		client.ipOption = &ipOption
 		client.checkSystem = checkSystem
+		client.policyID = ns.PolicyID
 		return nil
 	})
 	return client, err
@@ -211,14 +212,10 @@ 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 +240,32 @@ 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())
@@ -300,3 +297,18 @@ func ResolveIpOptionOverride(queryStrategy QueryStrategy, ipOption dns.IPOption)
 		return ipOption
 	}
 }
+
+func ToDomainMatchingType(t router.Domain_Type) DomainMatchingType {
+	switch t {
+	case router.Domain_Domain:
+		return DomainMatchingType_Subdomain
+	case router.Domain_Full:
+		return DomainMatchingType_Full
+	case router.Domain_Plain:
+		return DomainMatchingType_Keyword
+	case router.Domain_Regex:
+		return DomainMatchingType_Regex
+	default:
+		panic("unknown domain type")
+	}
+}

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()
@@ -94,7 +98,7 @@ func (s *ClassicNameServer) HandleResponse(ctx context.Context, packet *udp_prot
 	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
 	}
 
@@ -107,7 +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
 	}
 
@@ -134,7 +138,7 @@ func (s *ClassicNameServer) HandleResponse(ctx context.Context, packet *udp_prot
 		}
 	}
 
-	s.cacheController.updateIP(&req.dnsRequest, ipRec)
+	s.cacheController.updateRecord(&req.dnsRequest, ipRec)
 }
 
 func (s *ClassicNameServer) newReqID() uint16 {
@@ -150,10 +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{
@@ -161,7 +171,14 @@ 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)
@@ -170,48 +187,5 @@ func (s *ClassicNameServer) sendQuery(ctx context.Context, _ chan<- error, domai
 
 // 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/proxyman/inbound/always.go

@@ -9,6 +9,7 @@ import (
 	"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"
@@ -52,6 +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

app/proxyman/inbound/worker.go

@@ -2,7 +2,6 @@ package inbound
 
 import (
 	"context"
-	gonet "net"
 	"sync"
 	"sync/atomic"
 	"time"
@@ -565,12 +564,12 @@ func (w *dsWorker) Close() error {
 }
 
 func IsLocal(ip net.IP) bool {
-	addrs, err := gonet.InterfaceAddrs()
+	addrs, err := net.InterfaceAddrs()
 	if err != nil {
 		return false
 	}
 	for _, addr := range addrs {
-		if ipnet, ok := addr.(*gonet.IPNet); ok {
+		if ipnet, ok := addr.(*net.IPNet); ok {
 			if ipnet.IP.Equal(ip) {
 				return true
 			}

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"
@@ -398,7 +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))
@@ -412,5 +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

@@ -4,7 +4,6 @@ import (
 	"context"
 	"time"
 
-	"github.com/xtls/xray-core/app/dispatcher"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/mux"
 	"github.com/xtls/xray-core/common/net"
@@ -230,8 +229,6 @@ func (w *BridgeWorker) DispatchLink(ctx context.Context, dest net.Destination, l
 		}
 		return w.Dispatcher.DispatchLink(ctx, dest, link)
 	}
-
-	link = w.Dispatcher.(*dispatcher.DefaultDispatcher).WrapLink(ctx, link)
 	w.handleInternalConn(link)
 
 	return nil

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"
@@ -47,20 +51,6 @@ 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
 }
@@ -70,11 +60,13 @@ func NewMphMatcherGroup(domains []*Domain) (*DomainMatcher, error) {
 	for _, d := range domains {
 		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 +88,53 @@ 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 +144,17 @@ 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 +308,135 @@ func (m *AttributeMatcher) Apply(ctx routing.Context) bool {
 	}
 	return m.Match(attributes)
 }
+
+// Geo attribute
+type GeoAttributeMatcher interface {
+	Match(*Domain) bool
+}
+
+type GeoBooleanMatcher string
+
+func (m GeoBooleanMatcher) Match(domain *Domain) bool {
+	for _, attr := range domain.Attribute {
+		if attr.Key == string(m) {
+			return true
+		}
+	}
+	return false
+}
+
+type GeoAttributeList struct {
+	Matcher []GeoAttributeMatcher
+}
+
+func (al *GeoAttributeList) Match(domain *Domain) bool {
+	for _, matcher := range al.Matcher {
+		if !matcher.Match(domain) {
+			return false
+		}
+	}
+	return true
+}
+
+func (al *GeoAttributeList) IsEmpty() bool {
+	return len(al.Matcher) == 0
+}
+
+func ParseAttrs(attrs []string) *GeoAttributeList {
+	al := new(GeoAttributeList)
+	for _, attr := range attrs {
+		lc := strings.ToLower(attr)
+		al.Matcher = append(al.Matcher, GeoBooleanMatcher(lc))
+	}
+	return al
+}
+
+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 {
+	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

@@ -1,67 +1,17 @@
 package router_test
 
 import (
-	"fmt"
 	"os"
 	"path/filepath"
+	"runtime"
 	"testing"
 
 	"github.com/xtls/xray-core/app/router"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/common/platform"
-	"github.com/xtls/xray-core/common/platform/filesystem"
-	"google.golang.org/protobuf/proto"
+	"github.com/xtls/xray-core/infra/conf"
 )
 
-func getAssetPath(file string) (string, error) {
-	path := platform.GetAssetLocation(file)
-	_, err := os.Stat(path)
-	if os.IsNotExist(err) {
-		path := filepath.Join("..", "..", "resources", file)
-		_, err := os.Stat(path)
-		if os.IsNotExist(err) {
-			return "", fmt.Errorf("can't find %s in standard asset locations or {project_root}/resources", file)
-		}
-		if err != nil {
-			return "", fmt.Errorf("can't stat %s: %v", path, err)
-		}
-		return path, nil
-	}
-	if err != nil {
-		return "", fmt.Errorf("can't stat %s: %v", path, err)
-	}
-
-	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 +30,10 @@ 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 +92,10 @@ 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 +125,11 @@ 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
@@ -203,11 +159,12 @@ func TestGeoIPReverseMatcher(t *testing.T) {
 }
 
 func TestGeoIPMatcher4CN(t *testing.T) {
-	ips, err := loadGeoIP("CN")
+	geo := "geoip:cn"
+	geoip, err := loadGeoIP(geo)
 	common.Must(err)
 
-	matcher := &router.GeoIPMatcher{}
-	common.Must(matcher.Init(ips))
+	matcher, err := router.BuildOptimizedGeoIPMatcher(geoip)
+	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")
@@ -215,47 +172,47 @@ func TestGeoIPMatcher4CN(t *testing.T) {
 }
 
 func TestGeoIPMatcher6US(t *testing.T) {
-	ips, err := loadGeoIP("US")
+	geo := "geoip:us"
+	geoip, err := loadGeoIP(geo)
 	common.Must(err)
 
-	matcher := &router.GeoIPMatcher{}
-	common.Must(matcher.Init(ips))
+	matcher, err := router.BuildOptimizedGeoIPMatcher(geoip)
+	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")
 	}
 }
 
-func loadGeoIP(country string) ([]*router.CIDR, error) {
-	path, err := getAssetPath("geoip.dat")
-	if err != nil {
-		return nil, err
-	}
-	geoipBytes, err := filesystem.ReadFile(path)
+func loadGeoIP(geo string) (*router.GeoIP, error) {
+	os.Setenv("XRAY_LOCATION_ASSET", filepath.Join("..", "..", "resources"))
+
+	geoip, err := conf.ToCidrList([]string{geo})
 	if err != nil {
 		return nil, err
 	}
 
-	var geoipList router.GeoIPList
-	if err := proto.Unmarshal(geoipBytes, &geoipList); err != nil {
-		return nil, err
-	}
-
-	for _, geoip := range geoipList.Entry {
-		if geoip.CountryCode == country {
-			return geoip.Cidr, nil
+	if runtime.GOOS != "windows" && runtime.GOOS != "wasm" {
+		geoip, err = router.GetGeoIPList(geoip)
+		if err != nil {
+			return nil, err
 		}
 	}
 
-	panic("country not found: " + country)
+	if len(geoip) == 0 {
+		panic("country not found: " + geo)
+	}
+
+	return geoip[0], nil
 }
 
 func BenchmarkGeoIPMatcher4CN(b *testing.B) {
-	ips, err := loadGeoIP("CN")
+	geo := "geoip:cn"
+	geoip, err := loadGeoIP(geo)
 	common.Must(err)
 
-	matcher := &router.GeoIPMatcher{}
-	common.Must(matcher.Init(ips))
+	matcher, err := router.BuildOptimizedGeoIPMatcher(geoip)
+	common.Must(err)
 
 	b.ResetTimer()
 
@@ -265,11 +222,12 @@ func BenchmarkGeoIPMatcher4CN(b *testing.B) {
 }
 
 func BenchmarkGeoIPMatcher6US(b *testing.B) {
-	ips, err := loadGeoIP("US")
+	geo := "geoip:us"
+	geoip, err := loadGeoIP(geo)
 	common.Must(err)
 
-	matcher := &router.GeoIPMatcher{}
-	common.Must(matcher.Init(ips))
+	matcher, err := router.BuildOptimizedGeoIPMatcher(geoip)
+	common.Must(err)
 
 	b.ResetTimer()
 

app/router/condition_test.go

@@ -1,20 +1,22 @@
 package router_test
 
 import (
+	"os"
+	"path/filepath"
+	"runtime"
 	"strconv"
 	"testing"
 
+	"github.com/xtls/xray-core/app/router"
 	. "github.com/xtls/xray-core/app/router"
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/common/platform/filesystem"
 	"github.com/xtls/xray-core/common/protocol"
 	"github.com/xtls/xray-core/common/protocol/http"
 	"github.com/xtls/xray-core/common/session"
 	"github.com/xtls/xray-core/features/routing"
 	routing_session "github.com/xtls/xray-core/features/routing/session"
-	"google.golang.org/protobuf/proto"
+	"github.com/xtls/xray-core/infra/conf"
 )
 
 func withBackground() routing.Context {
@@ -300,32 +302,25 @@ func TestRoutingRule(t *testing.T) {
 	}
 }
 
-func loadGeoSite(country string) ([]*Domain, error) {
-	path, err := getAssetPath("geosite.dat")
-	if err != nil {
-		return nil, err
-	}
-	geositeBytes, err := filesystem.ReadFile(path)
+func loadGeoSiteDomains(geo string) ([]*Domain, error) {
+	os.Setenv("XRAY_LOCATION_ASSET", filepath.Join("..", "..", "resources"))
+
+	domains, err := conf.ParseDomainRule(geo)
 	if err != nil {
 		return nil, err
 	}
 
-	var geositeList GeoSiteList
-	if err := proto.Unmarshal(geositeBytes, &geositeList); err != nil {
-		return nil, err
-	}
-
-	for _, site := range geositeList.Entry {
-		if site.CountryCode == country {
-			return site.Domain, nil
+	if runtime.GOOS != "windows" && runtime.GOOS != "wasm" {
+		domains, err = router.GetDomainList(domains)
+		if err != nil {
+			return nil, err
 		}
 	}
-
-	return nil, errors.New("country not found: " + country)
+	return domains, nil
 }
 
 func TestChinaSites(t *testing.T) {
-	domains, err := loadGeoSite("CN")
+	domains, err := loadGeoSiteDomains("geosite:cn")
 	common.Must(err)
 
 	acMatcher, err := NewMphMatcherGroup(domains)
@@ -366,8 +361,50 @@ func TestChinaSites(t *testing.T) {
 	}
 }
 
+func TestChinaSitesWithAttrs(t *testing.T) {
+	domains, err := loadGeoSiteDomains("geosite:google@cn")
+	common.Must(err)
+
+	acMatcher, err := NewMphMatcherGroup(domains)
+	common.Must(err)
+
+	type TestCase struct {
+		Domain string
+		Output bool
+	}
+	testCases := []TestCase{
+		{
+			Domain: "google.cn",
+			Output: true,
+		},
+		{
+			Domain: "recaptcha.net",
+			Output: true,
+		},
+		{
+			Domain: "164.com",
+			Output: false,
+		},
+		{
+			Domain: "164.com",
+			Output: false,
+		},
+	}
+
+	for i := 0; i < 1024; i++ {
+		testCases = append(testCases, TestCase{Domain: strconv.Itoa(i) + ".not-exists.com", Output: false})
+	}
+
+	for _, testCase := range testCases {
+		r := acMatcher.ApplyDomain(testCase.Domain)
+		if r != testCase.Output {
+			t.Error("ACDomainMatcher expected output ", testCase.Output, " for domain ", testCase.Domain, " but got ", r)
+		}
+	}
+}
+
 func BenchmarkMphDomainMatcher(b *testing.B) {
-	domains, err := loadGeoSite("CN")
+	domains, err := loadGeoSiteDomains("geosite:cn")
 	common.Must(err)
 
 	matcher, err := NewMphMatcherGroup(domains)
@@ -412,11 +449,11 @@ func BenchmarkMultiGeoIPMatcher(b *testing.B) {
 	var geoips []*GeoIP
 
 	{
-		ips, err := loadGeoIP("CN")
+		ips, err := loadGeoIP("geoip:cn")
 		common.Must(err)
 		geoips = append(geoips, &GeoIP{
 			CountryCode: "CN",
-			Cidr:        ips,
+			Cidr:        ips.Cidr,
 		})
 	}
 
@@ -425,29 +462,29 @@ func BenchmarkMultiGeoIPMatcher(b *testing.B) {
 		common.Must(err)
 		geoips = append(geoips, &GeoIP{
 			CountryCode: "JP",
-			Cidr:        ips,
+			Cidr:        ips.Cidr,
 		})
 	}
 
 	{
-		ips, err := loadGeoIP("CA")
+		ips, err := loadGeoIP("geoip:ca")
 		common.Must(err)
 		geoips = append(geoips, &GeoIP{
 			CountryCode: "CA",
-			Cidr:        ips,
+			Cidr:        ips.Cidr,
 		})
 	}
 
 	{
-		ips, err := loadGeoIP("US")
+		ips, err := loadGeoIP("geoip:us")
 		common.Must(err)
 		geoips = append(geoips, &GeoIP{
 			CountryCode: "US",
-			Cidr:        ips,
+			Cidr:        ips.Cidr,
 		})
 	}
 
-	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

@@ -3,11 +3,14 @@ package router
 import (
 	"context"
 	"regexp"
+	"runtime"
 	"strings"
 
 	"github.com/xtls/xray-core/common/errors"
+	"github.com/xtls/xray-core/common/platform/filesystem"
 	"github.com/xtls/xray-core/features/outbound"
 	"github.com/xtls/xray-core/features/routing"
+	"google.golang.org/protobuf/proto"
 )
 
 type Rule struct {
@@ -32,72 +35,38 @@ 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 +75,61 @@ func (rr *RoutingRule) BuildCondition() (Condition, error) {
 		conds.Add(&AttributeMatcher{configuredKeys})
 	}
 
+	if len(rr.Geoip) > 0 {
+		geoip := rr.Geoip
+		if runtime.GOOS != "windows" && runtime.GOOS != "wasm" {
+			var err error
+			geoip, err = GetGeoIPList(rr.Geoip)
+			if err != nil {
+				return nil, errors.New("failed to build geoip from mmap").Base(err)
+			}
+		}
+		cond, err := NewIPMatcher(geoip, MatcherAsType_Target)
+		if err != nil {
+			return nil, err
+		}
+		conds.Add(cond)
+	}
+
+	if len(rr.SourceGeoip) > 0 {
+		cond, err := NewIPMatcher(rr.SourceGeoip, MatcherAsType_Source)
+		if err != nil {
+			return nil, err
+		}
+		conds.Add(cond)
+	}
+
+	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")
+	}
+
+	if len(rr.Domain) > 0 {
+		domains := rr.Domain
+		if runtime.GOOS != "windows" && runtime.GOOS != "wasm" {
+			var err error
+			domains, err = GetDomainList(rr.Domain)
+			if err != nil {
+				return nil, errors.New("failed to build domains from mmap").Base(err)
+			}
+		}
+
+		matcher, err := NewMphMatcherGroup(domains)
+		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(domains), " domain rule(s)")
+		conds.Add(matcher)
+	}
+
+	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()
 	}
@@ -159,3 +183,80 @@ func (br *BalancingRule) Build(ohm outbound.Manager, dispatcher routing.Dispatch
 		return nil, errors.New("unrecognized balancer type")
 	}
 }
+
+func GetGeoIPList(ips []*GeoIP) ([]*GeoIP, error) {
+	geoipList := []*GeoIP{}
+	for _, ip := range ips {
+		if ip.CountryCode != "" {
+			val := strings.Split(ip.CountryCode, "_")
+			fileName := "geoip.dat"
+			if len(val) == 2 {
+				fileName = strings.ToLower(val[0])
+			}
+			bs, err := filesystem.ReadAsset(fileName)
+			if err != nil {
+				return nil, errors.New("failed to load file: ", fileName).Base(err)
+			}
+			bs = filesystem.Find(bs, []byte(ip.CountryCode))
+
+			var geoip GeoIP
+
+			if err := proto.Unmarshal(bs, &geoip); err != nil {
+				return nil, errors.New("failed Unmarshal :").Base(err)
+			}
+			geoipList = append(geoipList, &geoip)
+
+		} else {
+			geoipList = append(geoipList, ip)
+		}
+	}
+	return geoipList, nil
+
+}
+
+func GetDomainList(domains []*Domain) ([]*Domain, error) {
+	domainList := []*Domain{}
+	for _, domain := range domains {
+		val := strings.Split(domain.Value, "_")
+
+		if len(val) >= 2 {
+
+			fileName := val[0]
+			code := val[1]
+
+			bs, err := filesystem.ReadAsset(fileName)
+			if err != nil {
+				return nil, errors.New("failed to load file: ", fileName).Base(err)
+			}
+			bs = filesystem.Find(bs, []byte(code))
+			var geosite GeoSite
+
+			if err := proto.Unmarshal(bs, &geosite); err != nil {
+				return nil, errors.New("failed Unmarshal :").Base(err)
+			}
+
+			// parse attr
+			if len(val) == 3 {
+				siteWithAttr := strings.Split(val[2], ",")
+				attrs := ParseAttrs(siteWithAttr)
+
+				if !attrs.IsEmpty() {
+					filteredDomains := make([]*Domain, 0, len(domains))
+					for _, domain := range geosite.Domain {
+						if attrs.Match(domain) {
+							filteredDomains = append(filteredDomains, domain)
+						}
+					}
+					geosite.Domain = filteredDomains
+				}
+
+			}
+
+			domainList = append(domainList, geosite.Domain...)
+
+		} else {
+			domainList = append(domainList, domain)
+		}
+	}
+	return domainList, nil
+}

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,
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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,
 	0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x48, 0x00, 0x52, 0x03, 0x74, 0x61, 0x67, 0x12, 0x25, 0x0a,
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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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+	0x70, 0x2f, 0x72, 0x6f, 0x75, 0x74, 0x65, 0x72, 0xaa, 0x02, 0x0f, 0x58, 0x72, 0x61, 0x79, 0x2e,
+	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/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{
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-	0x6d, 0x6d, 0x61, 0x6e, 0x64, 0xaa, 0x02, 0x16, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70,
-	0x2e, 0x53, 0x74, 0x61, 0x74, 0x73, 0x2e, 0x43, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x62, 0x06,
-	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
-}
+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/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/server.go

@@ -5,7 +5,6 @@ import (
 	"io"
 	"time"
 
-	"github.com/xtls/xray-core/app/dispatcher"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/errors"
@@ -64,7 +63,6 @@ func (s *Server) DispatchLink(ctx context.Context, dest net.Destination, link *t
 	if dest.Address != muxCoolAddress {
 		return s.dispatcher.DispatchLink(ctx, dest, link)
 	}
-	link = s.dispatcher.(*dispatcher.DefaultDispatcher).WrapLink(ctx, link)
 	worker, err := NewServerWorker(ctx, s.dispatcher, link)
 	if err != nil {
 		return err

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/asset_tools.go

@@ -0,0 +1,52 @@
+package filesystem
+
+func DecodeVarint(buf []byte) (x uint64, n int) {
+	for shift := uint(0); shift < 64; shift += 7 {
+		if n >= len(buf) {
+			return 0, 0
+		}
+		b := uint64(buf[n])
+		n++
+		x |= (b & 0x7F) << shift
+		if (b & 0x80) == 0 {
+			return x, n
+		}
+	}
+
+	// The number is too large to represent in a 64-bit value.
+	return 0, 0
+}
+
+func Find(data, code []byte) []byte {
+	codeL := len(code)
+	if codeL == 0 {
+		return nil
+	}
+	for {
+		dataL := len(data)
+		if dataL < 2 {
+			return nil
+		}
+		x, y := DecodeVarint(data[1:])
+		if x == 0 && y == 0 {
+			return nil
+		}
+		headL, bodyL := 1+y, int(x)
+		dataL -= headL
+		if dataL < bodyL {
+			return nil
+		}
+		data = data[headL:]
+		if int(data[1]) == codeL {
+			for i := 0; i < codeL && data[2+i] == code[i]; i++ {
+				if i+1 == codeL {
+					return data[:bodyL]
+				}
+			}
+		}
+		if dataL == bodyL {
+			return nil
+		}
+		data = data[bodyL:]
+	}
+}

common/platform/filesystem/file.go

@@ -1,9 +1,12 @@
+//go:build !windows && !wasm
+
 package filesystem
 
 import (
 	"io"
 	"os"
 	"path/filepath"
+	"syscall"
 
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/platform"
@@ -16,6 +19,29 @@ var NewFileReader FileReaderFunc = func(path string) (io.ReadCloser, error) {
 }
 
 func ReadFile(path string) ([]byte, error) {
+	file, err := os.Open(path)
+	if err != nil {
+		return nil, err
+	}
+	defer file.Close()
+
+	stat, err := file.Stat()
+	if err != nil {
+		return nil, err
+	}
+
+	size := stat.Size()
+	if size == 0 {
+		return []byte{}, nil
+	}
+
+	// use mmap to save RAM
+	bs, err := syscall.Mmap(int(file.Fd()), 0, int(size), syscall.PROT_READ, syscall.MAP_SHARED)
+	if err == nil {
+		return bs, nil
+	}
+
+	// fallback
 	reader, err := NewFileReader(path)
 	if err != nil {
 		return nil, err

common/platform/filesystem/file_other.go

@@ -0,0 +1,54 @@
+//go:build windows || wasm
+
+package filesystem
+
+import (
+	"io"
+	"os"
+	"path/filepath"
+
+	"github.com/xtls/xray-core/common/buf"
+	"github.com/xtls/xray-core/common/platform"
+)
+
+type FileReaderFunc func(path string) (io.ReadCloser, error)
+
+var NewFileReader FileReaderFunc = func(path string) (io.ReadCloser, error) {
+	return os.Open(path)
+}
+
+func ReadFile(path string) ([]byte, error) {
+	reader, err := NewFileReader(path)
+	if err != nil {
+		return nil, err
+	}
+	defer reader.Close()
+
+	return buf.ReadAllToBytes(reader)
+}
+
+func ReadAsset(file string) ([]byte, error) {
+	return ReadFile(platform.GetAssetLocation(file))
+}
+
+func ReadCert(file string) ([]byte, error) {
+	if filepath.IsAbs(file) {
+		return ReadFile(file)
+	}
+	return ReadFile(platform.GetCertLocation(file))
+}
+
+func CopyFile(dst string, src string) error {
+	bytes, err := ReadFile(src)
+	if err != nil {
+		return err
+	}
+	f, err := os.OpenFile(dst, os.O_CREATE|os.O_WRONLY, 0o644)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	_, err = f.Write(bytes)
+	return err
+}

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

@@ -3,25 +3,18 @@
 
 package platform
 
-import "path/filepath"
-
-func ExpandEnv(s string) string {
-	// TODO
-	return s
-}
+import (
+	"path/filepath"
+)
 
 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)
+
 	return filepath.Join(assetPath, file)
 }
 

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/strmatcher/strmatcher.go

@@ -1,6 +1,7 @@
 package strmatcher
 
 import (
+	"errors"
 	"regexp"
 )
 
@@ -44,7 +45,7 @@ func (t Type) New(pattern string) (Matcher, error) {
 			pattern: r,
 		}, nil
 	default:
-		panic("Unknown type")
+		return nil, errors.New("unk type")
 	}
 }
 

common/uuid/uuid.go

@@ -85,10 +85,14 @@ func ParseString(str string) (UUID, error) {
 	b := uuid.Bytes()
 
 	for _, byteGroup := range byteGroups {
-		if text[0] == '-' {
+		if len(text) > 0 && text[0] == '-' {
 			text = text[1:]
 		}
 
+		if len(text) < byteGroup {
+			return uuid, errors.New("invalid UUID: ", str)
+		}
+
 		if _, err := hex.Decode(b[:byteGroup/2], text[:byteGroup]); err != nil {
 			return uuid, err
 		}

common/uuid/uuid_test.go

@@ -44,6 +44,11 @@ func TestParseString(t *testing.T) {
 	if err == nil {
 		t.Fatal("Expect error but nil")
 	}
+
+	_, err = ParseString("2418d087-648d-4990-86e8-19dca1d0")
+	if err == nil {
+		t.Fatal("Expect error but nil")
+	}
 }
 
 func TestNewUUID(t *testing.T) {

common/xudp/xudp.go

@@ -52,7 +52,7 @@ func GetGlobalID(ctx context.Context) (globalID [8]byte) {
 		return
 	}
 	if inbound := session.InboundFromContext(ctx); inbound != nil && inbound.Source.Network == net.Network_UDP &&
-		(inbound.Name == "dokodemo-door" || inbound.Name == "socks" || inbound.Name == "shadowsocks") {
+		(inbound.Name == "dokodemo-door" || inbound.Name == "socks" || inbound.Name == "shadowsocks" || inbound.Name == "tun") {
 		h := blake3.New(8, BaseKey)
 		h.Write([]byte(inbound.Source.String()))
 		copy(globalID[:], h.Sum(nil))

core/config.go

@@ -64,7 +64,7 @@ func GetMergedConfig(args cmdarg.Arg) (string, error) {
 	var files []*ConfigSource
 	supported := []string{"json", "yaml", "toml"}
 	for _, file := range args {
-		format := getFormat(file)
+		format := GetFormat(file)
 		if slices.Contains(supported, format) {
 			files = append(files, &ConfigSource{
 				Name:   file,
@@ -98,7 +98,7 @@ func getExtension(filename string) string {
 	return filename[idx+1:]
 }
 
-func getFormat(filename string) string {
+func GetFormat(filename string) string {
 	return GetFormatByExtension(getExtension(filename))
 }
 
@@ -112,7 +112,7 @@ func LoadConfig(formatName string, input interface{}) (*Config, error) {
 
 			if formatName == "auto" {
 				if file != "stdin:" {
-					f = getFormat(file)
+					f = GetFormat(file)
 				} else {
 					f = "json"
 				}

core/core.go

@@ -18,8 +18,8 @@ import (
 
 var (
 	Version_x byte = 25
-	Version_y byte = 10
-	Version_z byte = 15
+	Version_y byte = 12
+	Version_z byte = 8
 )
 
 var (

features/stats/stats.go

@@ -98,6 +98,9 @@ type Manager interface {
 	UnregisterChannel(string) error
 	// GetChannel returns a channel by its identifier.
 	GetChannel(string) Channel
+
+	// GetAllOnlineUsers returns all online users from all OnlineMaps.
+	GetAllOnlineUsers() []string
 }
 
 // GetOrRegisterCounter tries to get the StatCounter first. If not exist, it then tries to create a new counter.
@@ -190,6 +193,11 @@ func (NoopManager) GetChannel(string) Channel {
 	return nil
 }
 
+// GetAllOnlineUsers implements Manager.
+func (NoopManager) GetAllOnlineUsers() []string {
+	return nil
+}
+
 // Start implements common.Runnable.
 func (NoopManager) Start() error { return nil }
 

go.mod

@@ -1,17 +1,17 @@
 module github.com/xtls/xray-core
 
-go 1.25
+go 1.25.5
 
 require (
-	github.com/cloudflare/circl v1.6.1
+	github.com/apernet/quic-go v0.57.2-0.20260111184307-eec823306178
+	github.com/cloudflare/circl v1.6.2
 	github.com/ghodss/yaml v1.0.1-0.20220118164431-d8423dcdf344
 	github.com/golang/mock v1.7.0-rc.1
 	github.com/google/go-cmp v0.7.0
 	github.com/gorilla/websocket v1.5.3
-	github.com/miekg/dns v1.1.68
+	github.com/miekg/dns v1.1.70
 	github.com/pelletier/go-toml v1.9.5
 	github.com/pires/go-proxyproto v0.8.1
-	github.com/quic-go/quic-go v0.55.0
 	github.com/refraction-networking/utls v1.8.1
 	github.com/sagernet/sing v0.5.1
 	github.com/sagernet/sing-shadowsocks v0.2.7
@@ -21,14 +21,16 @@ require (
 	github.com/vishvananda/netlink v1.3.1
 	github.com/xtls/reality v0.0.0-20251014195629-e4eec4520535
 	go4.org/netipx v0.0.0-20231129151722-fdeea329fbba
-	golang.org/x/crypto v0.43.0
-	golang.org/x/net v0.46.0
-	golang.org/x/sync v0.17.0
-	golang.org/x/sys v0.37.0
+	golang.org/x/crypto v0.47.0
+	golang.org/x/exp v0.0.0-20240506185415-9bf2ced13842
+	golang.org/x/net v0.49.0
+	golang.org/x/sync v0.19.0
+	golang.org/x/sys v0.40.0
+	golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2
 	golang.zx2c4.com/wireguard v0.0.0-20231211153847-12269c276173
-	google.golang.org/grpc v1.76.0
-	google.golang.org/protobuf v1.36.10
-	gvisor.dev/gvisor v0.0.0-20250428193742-2d800c3129d5
+	google.golang.org/grpc v1.78.0
+	google.golang.org/protobuf v1.36.11
+	gvisor.dev/gvisor v0.0.0-20260109181451-4be7c433dae2
 	h12.io/socks v1.0.3
 	lukechampine.com/blake3 v1.4.1
 )
@@ -41,17 +43,16 @@ require (
 	github.com/juju/ratelimit v1.0.2 // indirect
 	github.com/klauspost/compress v1.17.4 // indirect
 	github.com/klauspost/cpuid/v2 v2.0.12 // indirect
-	github.com/kr/pretty v0.3.1 // indirect
+	github.com/kr/text v0.2.0 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/quic-go/qpack v0.5.1 // indirect
+	github.com/quic-go/qpack v0.6.0 // indirect
 	github.com/riobard/go-bloom v0.0.0-20200614022211-cdc8013cb5b3 // indirect
 	github.com/vishvananda/netns v0.0.5 // indirect
-	golang.org/x/mod v0.28.0 // indirect
-	golang.org/x/text v0.30.0 // indirect
-	golang.org/x/time v0.7.0 // indirect
-	golang.org/x/tools v0.37.0 // indirect
-	golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20250804133106-a7a43d27e69b // indirect
+	golang.org/x/mod v0.31.0 // indirect
+	golang.org/x/text v0.33.0 // indirect
+	golang.org/x/time v0.12.0 // indirect
+	golang.org/x/tools v0.40.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20251029180050-ab9386a59fda // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -1,7 +1,9 @@
 github.com/andybalholm/brotli v1.0.6 h1:Yf9fFpf49Zrxb9NlQaluyE92/+X7UVHlhMNJN2sxfOI=
 github.com/andybalholm/brotli v1.0.6/go.mod h1:fO7iG3H7G2nSZ7m0zPUDn85XEX2GTukHGRSepvi9Eig=
-github.com/cloudflare/circl v1.6.1 h1:zqIqSPIndyBh1bjLVVDHMPpVKqp8Su/V+6MeDzzQBQ0=
-github.com/cloudflare/circl v1.6.1/go.mod h1:uddAzsPgqdMAYatqJ0lsjX1oECcQLIlRpzZh3pJrofs=
+github.com/apernet/quic-go v0.57.2-0.20260111184307-eec823306178 h1:bSq8n+gX4oO/qnM3MKf4kroW75n+phO9Qp6nigJKZ1E=
+github.com/apernet/quic-go v0.57.2-0.20260111184307-eec823306178/go.mod h1:N1WIjPphkqs4efXWuyDNQ6OjjIK04vM3h+bEgwV+eVU=
+github.com/cloudflare/circl v1.6.2 h1:hL7VBpHHKzrV5WTfHCaBsgx/HGbBYlgrwvNXEVDYYsQ=
+github.com/cloudflare/circl v1.6.2/go.mod h1:2eXP6Qfat4O/Yhh8BznvKnJ+uzEoTQ6jVKJRn81BiS4=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
@@ -38,27 +40,24 @@ github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
-github.com/miekg/dns v1.1.68 h1:jsSRkNozw7G/mnmXULynzMNIsgY2dHC8LO6U6Ij2JEA=
-github.com/miekg/dns v1.1.68/go.mod h1:fujopn7TB3Pu3JM69XaawiU0wqjpL9/8xGop5UrTPps=
+github.com/miekg/dns v1.1.70 h1:DZ4u2AV35VJxdD9Fo9fIWm119BsQL5cZU1cQ9s0LkqA=
+github.com/miekg/dns v1.1.70/go.mod h1:+EuEPhdHOsfk6Wk5TT2CzssZdqkmFhf8r+aVyDEToIs=
 github.com/pelletier/go-toml v1.9.5 h1:4yBQzkHv+7BHq2PQUZF3Mx0IYxG7LsP222s7Agd3ve8=
 github.com/pelletier/go-toml v1.9.5/go.mod h1:u1nR/EPcESfeI/szUZKdtJ0xRNbUoANCkoOuaOx1Y+c=
 github.com/phayes/freeport v0.0.0-20180830031419-95f893ade6f2 h1:JhzVVoYvbOACxoUmOs6V/G4D5nPVUW73rKvXxP4XUJc=
 github.com/phayes/freeport v0.0.0-20180830031419-95f893ade6f2/go.mod h1:iIss55rKnNBTvrwdmkUpLnDpZoAHvWaiq5+iMmen4AE=
 github.com/pires/go-proxyproto v0.8.1 h1:9KEixbdJfhrbtjpz/ZwCdWDD2Xem0NZ38qMYaASJgp0=
 github.com/pires/go-proxyproto v0.8.1/go.mod h1:ZKAAyp3cgy5Y5Mo4n9AlScrkCZwUy0g3Jf+slqQVcuU=
-github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/quic-go/qpack v0.5.1 h1:giqksBPnT/HDtZ6VhtFKgoLOWmlyo9Ei6u9PqzIMbhI=
-github.com/quic-go/qpack v0.5.1/go.mod h1:+PC4XFrEskIVkcLzpEkbLqq1uCoxPhQuvK5rH1ZgaEg=
-github.com/quic-go/quic-go v0.55.0 h1:zccPQIqYCXDt5NmcEabyYvOnomjs8Tlwl7tISjJh9Mk=
-github.com/quic-go/quic-go v0.55.0/go.mod h1:DR51ilwU1uE164KuWXhinFcKWGlEjzys2l8zUl5Ss1U=
+github.com/quic-go/qpack v0.6.0 h1:g7W+BMYynC1LbYLSqRt8PBg5Tgwxn214ZZR34VIOjz8=
+github.com/quic-go/qpack v0.6.0/go.mod h1:lUpLKChi8njB4ty2bFLX2x4gzDqXwUpaO1DP9qMDZII=
 github.com/refraction-networking/utls v1.8.1 h1:yNY1kapmQU8JeM1sSw2H2asfTIwWxIkrMJI0pRUOCAo=
 github.com/refraction-networking/utls v1.8.1/go.mod h1:jkSOEkLqn+S/jtpEHPOsVv/4V4EVnelwbMQl4vCWXAM=
 github.com/riobard/go-bloom v0.0.0-20200614022211-cdc8013cb5b3 h1:f/FNXud6gA3MNr8meMVVGxhp+QBTqY91tM8HjEuMjGg=
 github.com/riobard/go-bloom v0.0.0-20200614022211-cdc8013cb5b3/go.mod h1:HgjTstvQsPGkxUsCd2KWxErBblirPizecHcpD3ffK+s=
-github.com/rogpeppe/go-internal v1.9.0 h1:73kH8U+JUqXU8lRuOHeVHaa/SZPifC7BkcraZVejAe8=
-github.com/rogpeppe/go-internal v1.9.0/go.mod h1:WtVeX8xhTBvf0smdhujwtBcq4Qrzq/fJaraNFVN+nFs=
+github.com/rogpeppe/go-internal v1.10.0 h1:TMyTOH3F/DB16zRVcYyreMH6GnZZrwQVAoYjRBZyWFQ=
+github.com/rogpeppe/go-internal v1.10.0/go.mod h1:UQnix2H7Ngw/k4C5ijL5+65zddjncjaFoBhdsK/akog=
 github.com/sagernet/sing v0.5.1 h1:mhL/MZVq0TjuvHcpYcFtmSD1BFOxZ/+8ofbNZcg1k1Y=
 github.com/sagernet/sing v0.5.1/go.mod h1:ARkL0gM13/Iv5VCZmci/NuoOlePoIsW0m7BWfln/Hak=
 github.com/sagernet/sing-shadowsocks v0.2.7 h1:zaopR1tbHEw5Nk6FAkM05wCslV6ahVegEZaKMv9ipx8=
@@ -78,38 +77,40 @@ github.com/vishvananda/netns v0.0.5/go.mod h1:SpkAiCQRtJ6TvvxPnOSyH3BMl6unz3xZla
 github.com/xtls/reality v0.0.0-20251014195629-e4eec4520535 h1:nwobseOLLRtdbP6z7Z2aVI97u8ZptTgD1ofovhAKmeU=
 github.com/xtls/reality v0.0.0-20251014195629-e4eec4520535/go.mod h1:vbHCV/3VWUvy1oKvTxxWJRPEWSeR1sYgQHIh6u/JiZQ=
 github.com/yuin/goldmark v1.4.1/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
-go.opentelemetry.io/auto/sdk v1.1.0 h1:cH53jehLUN6UFLY71z+NDOiNJqDdPRaXzTel0sJySYA=
-go.opentelemetry.io/auto/sdk v1.1.0/go.mod h1:3wSPjt5PWp2RhlCcmmOial7AvC4DQqZb7a7wCow3W8A=
-go.opentelemetry.io/otel v1.37.0 h1:9zhNfelUvx0KBfu/gb+ZgeAfAgtWrfHJZcAqFC228wQ=
-go.opentelemetry.io/otel v1.37.0/go.mod h1:ehE/umFRLnuLa/vSccNq9oS1ErUlkkK71gMcN34UG8I=
-go.opentelemetry.io/otel/metric v1.37.0 h1:mvwbQS5m0tbmqML4NqK+e3aDiO02vsf/WgbsdpcPoZE=
-go.opentelemetry.io/otel/metric v1.37.0/go.mod h1:04wGrZurHYKOc+RKeye86GwKiTb9FKm1WHtO+4EVr2E=
-go.opentelemetry.io/otel/sdk v1.37.0 h1:ItB0QUqnjesGRvNcmAcU0LyvkVyGJ2xftD29bWdDvKI=
-go.opentelemetry.io/otel/sdk v1.37.0/go.mod h1:VredYzxUvuo2q3WRcDnKDjbdvmO0sCzOvVAiY+yUkAg=
-go.opentelemetry.io/otel/sdk/metric v1.37.0 h1:90lI228XrB9jCMuSdA0673aubgRobVZFhbjxHHspCPc=
-go.opentelemetry.io/otel/sdk/metric v1.37.0/go.mod h1:cNen4ZWfiD37l5NhS+Keb5RXVWZWpRE+9WyVCpbo5ps=
-go.opentelemetry.io/otel/trace v1.37.0 h1:HLdcFNbRQBE2imdSEgm/kwqmQj1Or1l/7bW6mxVK7z4=
-go.opentelemetry.io/otel/trace v1.37.0/go.mod h1:TlgrlQ+PtQO5XFerSPUYG0JSgGyryXewPGyayAWSBS0=
+go.opentelemetry.io/auto/sdk v1.2.1 h1:jXsnJ4Lmnqd11kwkBV2LgLoFMZKizbCi5fNZ/ipaZ64=
+go.opentelemetry.io/auto/sdk v1.2.1/go.mod h1:KRTj+aOaElaLi+wW1kO/DZRXwkF4C5xPbEe3ZiIhN7Y=
+go.opentelemetry.io/otel v1.38.0 h1:RkfdswUDRimDg0m2Az18RKOsnI8UDzppJAtj01/Ymk8=
+go.opentelemetry.io/otel v1.38.0/go.mod h1:zcmtmQ1+YmQM9wrNsTGV/q/uyusom3P8RxwExxkZhjM=
+go.opentelemetry.io/otel/metric v1.38.0 h1:Kl6lzIYGAh5M159u9NgiRkmoMKjvbsKtYRwgfrA6WpA=
+go.opentelemetry.io/otel/metric v1.38.0/go.mod h1:kB5n/QoRM8YwmUahxvI3bO34eVtQf2i4utNVLr9gEmI=
+go.opentelemetry.io/otel/sdk v1.38.0 h1:l48sr5YbNf2hpCUj/FoGhW9yDkl+Ma+LrVl8qaM5b+E=
+go.opentelemetry.io/otel/sdk v1.38.0/go.mod h1:ghmNdGlVemJI3+ZB5iDEuk4bWA3GkTpW+DOoZMYBVVg=
+go.opentelemetry.io/otel/sdk/metric v1.38.0 h1:aSH66iL0aZqo//xXzQLYozmWrXxyFkBJ6qT5wthqPoM=
+go.opentelemetry.io/otel/sdk/metric v1.38.0/go.mod h1:dg9PBnW9XdQ1Hd6ZnRz689CbtrUp0wMMs9iPcgT9EZA=
+go.opentelemetry.io/otel/trace v1.38.0 h1:Fxk5bKrDZJUH+AMyyIXGcFAPah0oRcT+LuNtJrmcNLE=
+go.opentelemetry.io/otel/trace v1.38.0/go.mod h1:j1P9ivuFsTceSWe1oY+EeW3sc+Pp42sO++GHkg4wwhs=
 go.uber.org/mock v0.5.2 h1:LbtPTcP8A5k9WPXj54PPPbjcI4Y6lhyOZXn+VS7wNko=
 go.uber.org/mock v0.5.2/go.mod h1:wLlUxC2vVTPTaE3UD51E0BGOAElKrILxhVSDYQLld5o=
 go4.org/netipx v0.0.0-20231129151722-fdeea329fbba h1:0b9z3AuHCjxk0x/opv64kcgZLBseWJUpBw5I82+2U4M=
 go4.org/netipx v0.0.0-20231129151722-fdeea329fbba/go.mod h1:PLyyIXexvUFg3Owu6p/WfdlivPbZJsZdgWZlrGope/Y=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
-golang.org/x/crypto v0.43.0 h1:dduJYIi3A3KOfdGOHX8AVZ/jGiyPa3IbBozJ5kNuE04=
-golang.org/x/crypto v0.43.0/go.mod h1:BFbav4mRNlXJL4wNeejLpWxB7wMbc79PdRGhWKncxR0=
+golang.org/x/crypto v0.47.0 h1:V6e3FRj+n4dbpw86FJ8Fv7XVOql7TEwpHapKoMJ/GO8=
+golang.org/x/crypto v0.47.0/go.mod h1:ff3Y9VzzKbwSSEzWqJsJVBnWmRwRSHt/6Op5n9bQc4A=
+golang.org/x/exp v0.0.0-20240506185415-9bf2ced13842 h1:vr/HnozRka3pE4EsMEg1lgkXJkTFJCVUX+S/ZT6wYzM=
+golang.org/x/exp v0.0.0-20240506185415-9bf2ced13842/go.mod h1:XtvwrStGgqGPLc4cjQfWqZHG1YFdYs6swckp8vpsjnc=
 golang.org/x/mod v0.5.1/go.mod h1:5OXOZSfqPIIbmVBIIKWRFfZjPR0E5r58TLhUjH0a2Ro=
-golang.org/x/mod v0.28.0 h1:gQBtGhjxykdjY9YhZpSlZIsbnaE2+PgjfLWUQTnoZ1U=
-golang.org/x/mod v0.28.0/go.mod h1:yfB/L0NOf/kmEbXjzCPOx1iK1fRutOydrCMsqRhEBxI=
+golang.org/x/mod v0.31.0 h1:HaW9xtz0+kOcWKwli0ZXy79Ix+UW/vOfmWI5QVd2tgI=
+golang.org/x/mod v0.31.0/go.mod h1:43JraMp9cGx1Rx3AqioxrbrhNsLl2l/iNAvuBkrezpg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20211015210444-4f30a5c0130f/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
-golang.org/x/net v0.46.0 h1:giFlY12I07fugqwPuWJi68oOnpfqFnJIJzaIIm2JVV4=
-golang.org/x/net v0.46.0/go.mod h1:Q9BGdFy1y4nkUwiLvT5qtyhAnEHgnQ/zd8PfU6nc210=
+golang.org/x/net v0.49.0 h1:eeHFmOGUTtaaPSGNmjBKpbng9MulQsJURQUAfUwY++o=
+golang.org/x/net v0.49.0/go.mod h1:/ysNB2EvaqvesRkuLAyjI1ycPZlQHM3q01F02UY/MV8=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.17.0 h1:l60nONMj9l5drqw6jlhIELNv9I0A4OFgRsG9k2oT9Ug=
-golang.org/x/sync v0.17.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
+golang.org/x/sync v0.19.0 h1:vV+1eWNmZ5geRlYjzm2adRgW2/mcpevXNg50YZtPCE4=
+golang.org/x/sync v0.19.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -117,21 +118,21 @@ golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20211019181941-9d821ace8654/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.2.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.10.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.37.0 h1:fdNQudmxPjkdUTPnLn5mdQv7Zwvbvpaxqs831goi9kQ=
-golang.org/x/sys v0.37.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/sys v0.40.0 h1:DBZZqJ2Rkml6QMQsZywtnjnnGvHza6BTfYFWY9kjEWQ=
+golang.org/x/sys v0.40.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
-golang.org/x/text v0.30.0 h1:yznKA/E9zq54KzlzBEAWn1NXSQ8DIp/NYMy88xJjl4k=
-golang.org/x/text v0.30.0/go.mod h1:yDdHFIX9t+tORqspjENWgzaCVXgk0yYnYuSZ8UzzBVM=
-golang.org/x/time v0.7.0 h1:ntUhktv3OPE6TgYxXWv9vKvUSJyIFJlyohwbkEwPrKQ=
-golang.org/x/time v0.7.0/go.mod h1:3BpzKBy/shNhVucY/MWOyx10tF3SFh9QdLuxbVysPQM=
+golang.org/x/text v0.33.0 h1:B3njUFyqtHDUI5jMn1YIr5B0IE2U0qck04r6d4KPAxE=
+golang.org/x/text v0.33.0/go.mod h1:LuMebE6+rBincTi9+xWTY8TztLzKHc/9C1uBCG27+q8=
+golang.org/x/time v0.12.0 h1:ScB/8o8olJvc+CQPWrK3fPZNfh7qgwCrY0zJmoEQLSE=
+golang.org/x/time v0.12.0/go.mod h1:CDIdPxbZBQxdj6cxyCIdrNogrJKMJ7pr37NYpMcMDSg=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.1.8/go.mod h1:nABZi5QlRsZVlzPpHl034qft6wpY4eDcsTt5AaioBiU=
-golang.org/x/tools v0.37.0 h1:DVSRzp7FwePZW356yEAChSdNcQo6Nsp+fex1SUW09lE=
-golang.org/x/tools v0.37.0/go.mod h1:MBN5QPQtLMHVdvsbtarmTNukZDdgwdwlO5qGacAzF0w=
+golang.org/x/tools v0.40.0 h1:yLkxfA+Qnul4cs9QA3KnlFu0lVmd8JJfoq+E41uSutA=
+golang.org/x/tools v0.40.0/go.mod h1:Ik/tzLRlbscWpqqMRjyWYDisX8bG13FrdXp3o4Sr9lc=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -141,12 +142,12 @@ golang.zx2c4.com/wireguard v0.0.0-20231211153847-12269c276173 h1:/jFs0duh4rdb8uI
 golang.zx2c4.com/wireguard v0.0.0-20231211153847-12269c276173/go.mod h1:tkCQ4FQXmpAgYVh++1cq16/dH4QJtmvpRv19DWGAHSA=
 gonum.org/v1/gonum v0.16.0 h1:5+ul4Swaf3ESvrOnidPp4GZbzf0mxVQpDCYUQE7OJfk=
 gonum.org/v1/gonum v0.16.0/go.mod h1:fef3am4MQ93R2HHpKnLk4/Tbh/s0+wqD5nfa6Pnwy4E=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20250804133106-a7a43d27e69b h1:zPKJod4w6F1+nRGDI9ubnXYhU9NSWoFAijkHkUXeTK8=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20250804133106-a7a43d27e69b/go.mod h1:qQ0YXyHHx3XkvlzUtpXDkS29lDSafHMZBAZDc03LQ3A=
-google.golang.org/grpc v1.76.0 h1:UnVkv1+uMLYXoIz6o7chp59WfQUYA2ex/BXQ9rHZu7A=
-google.golang.org/grpc v1.76.0/go.mod h1:Ju12QI8M6iQJtbcsV+awF5a4hfJMLi4X0JLo94ULZ6c=
-google.golang.org/protobuf v1.36.10 h1:AYd7cD/uASjIL6Q9LiTjz8JLcrh/88q5UObnmY3aOOE=
-google.golang.org/protobuf v1.36.10/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20251029180050-ab9386a59fda h1:i/Q+bfisr7gq6feoJnS/DlpdwEL4ihp41fvRiM3Ork0=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20251029180050-ab9386a59fda/go.mod h1:7i2o+ce6H/6BluujYR+kqX3GKH+dChPTQU19wjRPiGk=
+google.golang.org/grpc v1.78.0 h1:K1XZG/yGDJnzMdd/uZHAkVqJE+xIDOcmdSFZkBUicNc=
+google.golang.org/grpc v1.78.0/go.mod h1:I47qjTo4OKbMkjA/aOOwxDIiPSBofUtQUI5EfpWvW7U=
+google.golang.org/protobuf v1.36.11 h1:fV6ZwhNocDyBLK0dj+fg8ektcVegBBuEolpbTQyBNVE=
+google.golang.org/protobuf v1.36.11/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
@@ -157,8 +158,8 @@ gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C
 gopkg.in/yaml.v3 v3.0.0-20200605160147-a5ece683394c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gvisor.dev/gvisor v0.0.0-20250428193742-2d800c3129d5 h1:sfK5nHuG7lRFZ2FdTT3RimOqWBg8IrVm+/Vko1FVOsk=
-gvisor.dev/gvisor v0.0.0-20250428193742-2d800c3129d5/go.mod h1:3r5CMtNQMKIvBlrmM9xWUNamjKBYPOWyXOjmg5Kts3g=
+gvisor.dev/gvisor v0.0.0-20260109181451-4be7c433dae2 h1:fr6L00yGG2RP5NMea6njWpdC+bm+cMdFClrSpaicp1c=
+gvisor.dev/gvisor v0.0.0-20260109181451-4be7c433dae2/go.mod h1:QkHjoMIBaYtpVufgwv3keYAbln78mBoCuShZrPrer1Q=
 h12.io/socks v1.0.3 h1:Ka3qaQewws4j4/eDQnOdpr4wXsC//dXtWvftlIcCQUo=
 h12.io/socks v1.0.3/go.mod h1:AIhxy1jOId/XCz9BO+EIgNL2rQiPTBNnOfnVnQ+3Eck=
 lukechampine.com/blake3 v1.4.1 h1:I3Smz7gso8w4/TunLKec6K2fn+kyKtDxr/xcQEN84Wg=

infra/conf/dns.go

@@ -16,19 +16,21 @@ import (
 )
 
 type NameServerConfig struct {
-	Address       *Address   `json:"address"`
-	ClientIP      *Address   `json:"clientIp"`
-	Port          uint16     `json:"port"`
-	SkipFallback  bool       `json:"skipFallback"`
-	Domains       []string   `json:"domains"`
-	ExpectedIPs   StringList `json:"expectedIPs"`
-	ExpectIPs     StringList `json:"expectIPs"`
-	QueryStrategy string     `json:"queryStrategy"`
-	Tag           string     `json:"tag"`
-	TimeoutMs     uint64     `json:"timeoutMs"`
-	DisableCache  bool       `json:"disableCache"`
-	FinalQuery    bool       `json:"finalQuery"`
-	UnexpectedIPs StringList `json:"unexpectedIPs"`
+	Address         *Address   `json:"address"`
+	ClientIP        *Address   `json:"clientIp"`
+	Port            uint16     `json:"port"`
+	SkipFallback    bool       `json:"skipFallback"`
+	Domains         []string   `json:"domains"`
+	ExpectedIPs     StringList `json:"expectedIPs"`
+	ExpectIPs       StringList `json:"expectIPs"`
+	QueryStrategy   string     `json:"queryStrategy"`
+	Tag             string     `json:"tag"`
+	TimeoutMs       uint64     `json:"timeoutMs"`
+	DisableCache    *bool      `json:"disableCache"`
+	ServeStale      *bool      `json:"serveStale"`
+	ServeExpiredTTL *uint32    `json:"serveExpiredTTL"`
+	FinalQuery      bool       `json:"finalQuery"`
+	UnexpectedIPs   StringList `json:"unexpectedIPs"`
 }
 
 // UnmarshalJSON implements encoding/json.Unmarshaler.UnmarshalJSON
@@ -40,19 +42,21 @@ func (c *NameServerConfig) UnmarshalJSON(data []byte) error {
 	}
 
 	var advanced struct {
-		Address       *Address   `json:"address"`
-		ClientIP      *Address   `json:"clientIp"`
-		Port          uint16     `json:"port"`
-		SkipFallback  bool       `json:"skipFallback"`
-		Domains       []string   `json:"domains"`
-		ExpectedIPs   StringList `json:"expectedIPs"`
-		ExpectIPs     StringList `json:"expectIPs"`
-		QueryStrategy string     `json:"queryStrategy"`
-		Tag           string     `json:"tag"`
-		TimeoutMs     uint64     `json:"timeoutMs"`
-		DisableCache  bool       `json:"disableCache"`
-		FinalQuery    bool       `json:"finalQuery"`
-		UnexpectedIPs StringList `json:"unexpectedIPs"`
+		Address         *Address   `json:"address"`
+		ClientIP        *Address   `json:"clientIp"`
+		Port            uint16     `json:"port"`
+		SkipFallback    bool       `json:"skipFallback"`
+		Domains         []string   `json:"domains"`
+		ExpectedIPs     StringList `json:"expectedIPs"`
+		ExpectIPs       StringList `json:"expectIPs"`
+		QueryStrategy   string     `json:"queryStrategy"`
+		Tag             string     `json:"tag"`
+		TimeoutMs       uint64     `json:"timeoutMs"`
+		DisableCache    *bool      `json:"disableCache"`
+		ServeStale      *bool      `json:"serveStale"`
+		ServeExpiredTTL *uint32    `json:"serveExpiredTTL"`
+		FinalQuery      bool       `json:"finalQuery"`
+		UnexpectedIPs   StringList `json:"unexpectedIPs"`
 	}
 	if err := json.Unmarshal(data, &advanced); err == nil {
 		c.Address = advanced.Address
@@ -66,6 +70,8 @@ func (c *NameServerConfig) UnmarshalJSON(data []byte) error {
 		c.Tag = advanced.Tag
 		c.TimeoutMs = advanced.TimeoutMs
 		c.DisableCache = advanced.DisableCache
+		c.ServeStale = advanced.ServeStale
+		c.ServeExpiredTTL = advanced.ServeExpiredTTL
 		c.FinalQuery = advanced.FinalQuery
 		c.UnexpectedIPs = advanced.UnexpectedIPs
 		return nil
@@ -74,21 +80,6 @@ func (c *NameServerConfig) UnmarshalJSON(data []byte) error {
 	return errors.New("failed to parse name server: ", string(data))
 }
 
-func toDomainMatchingType(t router.Domain_Type) dns.DomainMatchingType {
-	switch t {
-	case router.Domain_Domain:
-		return dns.DomainMatchingType_Subdomain
-	case router.Domain_Full:
-		return dns.DomainMatchingType_Full
-	case router.Domain_Plain:
-		return dns.DomainMatchingType_Keyword
-	case router.Domain_Regex:
-		return dns.DomainMatchingType_Regex
-	default:
-		panic("unknown domain type")
-	}
-}
-
 func (c *NameServerConfig) Build() (*dns.NameServer, error) {
 	if c.Address == nil {
 		return nil, errors.New("NameServer address is not specified.")
@@ -98,14 +89,14 @@ func (c *NameServerConfig) Build() (*dns.NameServer, error) {
 	var originalRules []*dns.NameServer_OriginalRule
 
 	for _, rule := range c.Domains {
-		parsedDomain, err := parseDomainRule(rule)
+		parsedDomain, err := ParseDomainRule(rule)
 		if err != nil {
 			return nil, errors.New("invalid domain rule: ", rule).Base(err)
 		}
 
 		for _, pd := range parsedDomain {
 			domains = append(domains, &dns.NameServer_PriorityDomain{
-				Type:   toDomainMatchingType(pd.Type),
+				Type:   dns.ToDomainMatchingType(pd.Type),
 				Domain: pd.Value,
 			})
 		}
@@ -173,6 +164,8 @@ func (c *NameServerConfig) Build() (*dns.NameServer, error) {
 		Tag:               c.Tag,
 		TimeoutMs:         c.TimeoutMs,
 		DisableCache:      c.DisableCache,
+		ServeStale:        c.ServeStale,
+		ServeExpiredTTL:   c.ServeExpiredTTL,
 		FinalQuery:        c.FinalQuery,
 		UnexpectedGeoip:   unexpectedGeoipList,
 		ActUnprior:        actUnprior,
@@ -194,8 +187,11 @@ type DNSConfig struct {
 	Tag                    string              `json:"tag"`
 	QueryStrategy          string              `json:"queryStrategy"`
 	DisableCache           bool                `json:"disableCache"`
+	ServeStale             bool                `json:"serveStale"`
+	ServeExpiredTTL        uint32              `json:"serveExpiredTTL"`
 	DisableFallback        bool                `json:"disableFallback"`
 	DisableFallbackIfMatch bool                `json:"disableFallbackIfMatch"`
+	EnableParallelQuery    bool                `json:"enableParallelQuery"`
 	UseSystemHosts         bool                `json:"useSystemHosts"`
 }
 
@@ -391,8 +387,11 @@ func (c *DNSConfig) Build() (*dns.Config, error) {
 	config := &dns.Config{
 		Tag:                    c.Tag,
 		DisableCache:           c.DisableCache,
+		ServeStale:             c.ServeStale,
+		ServeExpiredTTL:        c.ServeExpiredTTL,
 		DisableFallback:        c.DisableFallback,
 		DisableFallbackIfMatch: c.DisableFallbackIfMatch,
+		EnableParallelQuery:    c.EnableParallelQuery,
 		QueryStrategy:          resolveQueryStrategy(c.QueryStrategy),
 	}
 
@@ -403,11 +402,78 @@ func (c *DNSConfig) Build() (*dns.Config, error) {
 		config.ClientIp = []byte(c.ClientIP.IP())
 	}
 
+	// Build PolicyID
+	policyMap := map[string]uint32{}
+	nextPolicyID := uint32(1)
+	buildPolicyID := func(nsc *NameServerConfig) uint32 {
+		var sb strings.Builder
+
+		// ClientIP
+		if nsc.ClientIP != nil {
+			sb.WriteString("client=")
+			sb.WriteString(nsc.ClientIP.String())
+			sb.WriteByte('|')
+		} else {
+			sb.WriteString("client=none|")
+		}
+
+		// SkipFallback
+		if nsc.SkipFallback {
+			sb.WriteString("skip=1|")
+		} else {
+			sb.WriteString("skip=0|")
+		}
+
+		// QueryStrategy
+		sb.WriteString("qs=")
+		sb.WriteString(strings.ToLower(strings.TrimSpace(nsc.QueryStrategy)))
+		sb.WriteByte('|')
+
+		// Tag
+		sb.WriteString("tag=")
+		sb.WriteString(strings.ToLower(strings.TrimSpace(nsc.Tag)))
+		sb.WriteByte('|')
+
+		// []string helper
+		writeList := func(tag string, lst []string) {
+			if len(lst) == 0 {
+				sb.WriteString(tag)
+				sb.WriteString("=[]|")
+				return
+			}
+			cp := make([]string, len(lst))
+			for i, s := range lst {
+				cp[i] = strings.TrimSpace(strings.ToLower(s))
+			}
+			sort.Strings(cp)
+			sb.WriteString(tag)
+			sb.WriteByte('=')
+			sb.WriteString(strings.Join(cp, ","))
+			sb.WriteByte('|')
+		}
+
+		writeList("domains", nsc.Domains)
+		writeList("expected", nsc.ExpectedIPs)
+		writeList("expect", nsc.ExpectIPs)
+		writeList("unexpected", nsc.UnexpectedIPs)
+
+		key := sb.String()
+
+		if id, ok := policyMap[key]; ok {
+			return id
+		}
+		id := nextPolicyID
+		nextPolicyID++
+		policyMap[key] = id
+		return id
+	}
+
 	for _, server := range c.Servers {
 		ns, err := server.Build()
 		if err != nil {
 			return nil, errors.New("failed to build nameserver").Base(err)
 		}
+		ns.PolicyID = buildPolicyID(server)
 		config.NameServer = append(config.NameServer, ns)
 	}
 

infra/conf/dns_test.go

@@ -20,7 +20,8 @@ func TestDNSConfigParsing(t *testing.T) {
 			return config.Build()
 		}
 	}
-
+	expectedServeStale := true
+	expectedServeExpiredTTL := uint32(172800)
 	runMultiTestCase(t, []TestCase{
 		{
 			Input: `{
@@ -28,7 +29,9 @@ func TestDNSConfigParsing(t *testing.T) {
 					"address": "8.8.8.8",
 					"port": 5353,
 					"skipFallback": true,
-					"domains": ["domain:example.com"]
+					"domains": ["domain:example.com"],
+					"serveStale": true,
+					"serveExpiredTTL": 172800
 				}],
 				"hosts": {
 					"domain:example.com": "google.com",
@@ -40,6 +43,8 @@ func TestDNSConfigParsing(t *testing.T) {
 				"clientIp": "10.0.0.1",
 				"queryStrategy": "UseIPv4",
 				"disableCache": true,
+				"serveStale": false,
+				"serveExpiredTTL": 86400,
 				"disableFallback": true
 			}`,
 			Parser: parserCreator(),
@@ -68,6 +73,9 @@ func TestDNSConfigParsing(t *testing.T) {
 								Size: 1,
 							},
 						},
+						ServeStale:      &expectedServeStale,
+						ServeExpiredTTL: &expectedServeExpiredTTL,
+						PolicyID:        1, // Servers with certain identical fields share this ID, incrementing starting from 1. See: Build PolicyID
 					},
 				},
 				StaticHosts: []*dns.Config_HostMapping{
@@ -100,6 +108,8 @@ func TestDNSConfigParsing(t *testing.T) {
 				ClientIp:        []byte{10, 0, 0, 1},
 				QueryStrategy:   dns.QueryStrategy_USE_IP4,
 				DisableCache:    true,
+				ServeStale:      false,
+				ServeExpiredTTL: 86400,
 				DisableFallback: true,
 			},
 		},

infra/conf/hysteria.go

@@ -0,0 +1,23 @@
+package conf
+
+import (
+	"github.com/xtls/xray-core/common/protocol"
+	"github.com/xtls/xray-core/proxy/hysteria"
+	"google.golang.org/protobuf/proto"
+)
+
+type HysteriaClientConfig struct {
+	Address *Address `json:"address"`
+	Port    uint16   `json:"port"`
+}
+
+func (c *HysteriaClientConfig) Build() (proto.Message, error) {
+	config := new(hysteria.ClientConfig)
+
+	config.Server = &protocol.ServerEndpoint{
+		Address: c.Address.Build(),
+		Port:    uint32(c.Port),
+	}
+
+	return config, nil
+}

infra/conf/router.go

@@ -83,8 +83,6 @@ func (c *RouterConfig) getDomainStrategy() router.Config_DomainStrategy {
 	}
 
 	switch strings.ToLower(ds) {
-	case "alwaysip":
-		return router.Config_UseIp
 	case "ipifnonmatch":
 		return router.Config_IpIfNonMatch
 	case "ipondemand":
@@ -205,17 +203,23 @@ func loadFile(file string) ([]byte, error) {
 func loadIP(file, code string) ([]*router.CIDR, error) {
 	index := file + ":" + code
 	if IPCache[index] == nil {
-		bs, err := loadFile(file)
-		if err != nil {
-			return nil, errors.New("failed to load file: ", file).Base(err)
-		}
-		bs = find(bs, []byte(code))
-		if bs == nil {
-			return nil, errors.New("code not found in ", file, ": ", code)
-		}
 		var geoip router.GeoIP
-		if err := proto.Unmarshal(bs, &geoip); err != nil {
-			return nil, errors.New("error unmarshal IP in ", file, ": ", code).Base(err)
+
+		if runtime.GOOS != "windows" && runtime.GOOS != "wasm" {
+			// dont pass code becuase we have country code in top level router.GeoIP
+			geoip = router.GeoIP{Cidr: []*router.CIDR{}}
+		} else {
+			bs, err := loadFile(file)
+			if err != nil {
+				return nil, errors.New("failed to load file: ", file).Base(err)
+			}
+			bs = filesystem.Find(bs, []byte(code))
+			if bs == nil {
+				return nil, errors.New("code not found in ", file, ": ", code)
+			}
+			if err := proto.Unmarshal(bs, &geoip); err != nil {
+				return nil, errors.New("error unmarshal IP in ", file, ": ", code).Base(err)
+			}
 		}
 		defer runtime.GC()     // or debug.FreeOSMemory()
 		return geoip.Cidr, nil // do not cache geoip
@@ -227,18 +231,28 @@ func loadIP(file, code string) ([]*router.CIDR, error) {
 func loadSite(file, code string) ([]*router.Domain, error) {
 	index := file + ":" + code
 	if SiteCache[index] == nil {
-		bs, err := loadFile(file)
-		if err != nil {
-			return nil, errors.New("failed to load file: ", file).Base(err)
-		}
-		bs = find(bs, []byte(code))
-		if bs == nil {
-			return nil, errors.New("list not found in ", file, ": ", code)
-		}
 		var geosite router.GeoSite
-		if err := proto.Unmarshal(bs, &geosite); err != nil {
-			return nil, errors.New("error unmarshal Site in ", file, ": ", code).Base(err)
+
+		if runtime.GOOS != "windows" && runtime.GOOS != "wasm" {
+			// pass file:code so can build optimized matcher later
+			domain := router.Domain{Value: file + "_" + code}
+			geosite = router.GeoSite{Domain: []*router.Domain{&domain}}
+
+		} else {
+
+			bs, err := loadFile(file)
+			if err != nil {
+				return nil, errors.New("failed to load file: ", file).Base(err)
+			}
+			bs = filesystem.Find(bs, []byte(code))
+			if bs == nil {
+				return nil, errors.New("list not found in ", file, ": ", code)
+			}
+			if err := proto.Unmarshal(bs, &geosite); err != nil {
+				return nil, errors.New("error unmarshal Site in ", file, ": ", code).Base(err)
+			}
 		}
+
 		defer runtime.GC()         // or debug.FreeOSMemory()
 		return geosite.Domain, nil // do not cache geosite
 		SiteCache[index] = &geosite
@@ -246,105 +260,13 @@ func loadSite(file, code string) ([]*router.Domain, error) {
 	return SiteCache[index].Domain, nil
 }
 
-func DecodeVarint(buf []byte) (x uint64, n int) {
-	for shift := uint(0); shift < 64; shift += 7 {
-		if n >= len(buf) {
-			return 0, 0
-		}
-		b := uint64(buf[n])
-		n++
-		x |= (b & 0x7F) << shift
-		if (b & 0x80) == 0 {
-			return x, n
-		}
-	}
-
-	// The number is too large to represent in a 64-bit value.
-	return 0, 0
-}
-
-func find(data, code []byte) []byte {
-	codeL := len(code)
-	if codeL == 0 {
-		return nil
-	}
-	for {
-		dataL := len(data)
-		if dataL < 2 {
-			return nil
-		}
-		x, y := DecodeVarint(data[1:])
-		if x == 0 && y == 0 {
-			return nil
-		}
-		headL, bodyL := 1+y, int(x)
-		dataL -= headL
-		if dataL < bodyL {
-			return nil
-		}
-		data = data[headL:]
-		if int(data[1]) == codeL {
-			for i := 0; i < codeL && data[2+i] == code[i]; i++ {
-				if i+1 == codeL {
-					return data[:bodyL]
-				}
-			}
-		}
-		if dataL == bodyL {
-			return nil
-		}
-		data = data[bodyL:]
-	}
-}
-
-type AttributeMatcher interface {
-	Match(*router.Domain) bool
-}
-
-type BooleanMatcher string
-
-func (m BooleanMatcher) Match(domain *router.Domain) bool {
-	for _, attr := range domain.Attribute {
-		if attr.Key == string(m) {
-			return true
-		}
-	}
-	return false
-}
-
-type AttributeList struct {
-	matcher []AttributeMatcher
-}
-
-func (al *AttributeList) Match(domain *router.Domain) bool {
-	for _, matcher := range al.matcher {
-		if !matcher.Match(domain) {
-			return false
-		}
-	}
-	return true
-}
-
-func (al *AttributeList) IsEmpty() bool {
-	return len(al.matcher) == 0
-}
-
-func parseAttrs(attrs []string) *AttributeList {
-	al := new(AttributeList)
-	for _, attr := range attrs {
-		lc := strings.ToLower(attr)
-		al.matcher = append(al.matcher, BooleanMatcher(lc))
-	}
-	return al
-}
-
 func loadGeositeWithAttr(file string, siteWithAttr string) ([]*router.Domain, error) {
 	parts := strings.Split(siteWithAttr, "@")
 	if len(parts) == 0 {
 		return nil, errors.New("empty site")
 	}
 	country := strings.ToUpper(parts[0])
-	attrs := parseAttrs(parts[1:])
+	attrs := router.ParseAttrs(parts[1:])
 	domains, err := loadSite(file, country)
 	if err != nil {
 		return nil, err
@@ -354,6 +276,11 @@ func loadGeositeWithAttr(file string, siteWithAttr string) ([]*router.Domain, er
 		return domains, nil
 	}
 
+	if runtime.GOOS != "windows" && runtime.GOOS != "wasm" {
+		domains[0].Value = domains[0].Value + "_" + strings.Join(parts[1:], ",")
+		return domains, nil
+	}
+
 	filteredDomains := make([]*router.Domain, 0, len(domains))
 	for _, domain := range domains {
 		if attrs.Match(domain) {
@@ -364,7 +291,7 @@ func loadGeositeWithAttr(file string, siteWithAttr string) ([]*router.Domain, er
 	return filteredDomains, nil
 }
 
-func parseDomainRule(domain string) ([]*router.Domain, error) {
+func ParseDomainRule(domain string) ([]*router.Domain, error) {
 	if strings.HasPrefix(domain, "geosite:") {
 		country := strings.ToUpper(domain[8:])
 		domains, err := loadGeositeWithAttr("geosite.dat", country)
@@ -537,6 +464,7 @@ func parseFieldRule(msg json.RawMessage) (*router.RoutingRule, error) {
 		Attributes map[string]string `json:"attrs"`
 		LocalIP    *StringList       `json:"localIP"`
 		LocalPort  *PortList         `json:"localPort"`
+		Process    *StringList       `json:"process"`
 	}
 	rawFieldRule := new(RawFieldRule)
 	err := json.Unmarshal(msg, rawFieldRule)
@@ -561,7 +489,7 @@ func parseFieldRule(msg json.RawMessage) (*router.RoutingRule, error) {
 
 	if rawFieldRule.Domain != nil {
 		for _, domain := range *rawFieldRule.Domain {
-			rules, err := parseDomainRule(domain)
+			rules, err := ParseDomainRule(domain)
 			if err != nil {
 				return nil, errors.New("failed to parse domain rule: ", domain).Base(err)
 			}
@@ -571,7 +499,7 @@ func parseFieldRule(msg json.RawMessage) (*router.RoutingRule, error) {
 
 	if rawFieldRule.Domains != nil {
 		for _, domain := range *rawFieldRule.Domains {
-			rules, err := parseDomainRule(domain)
+			rules, err := ParseDomainRule(domain)
 			if err != nil {
 				return nil, errors.New("failed to parse domain rule: ", domain).Base(err)
 			}
@@ -649,6 +577,10 @@ func parseFieldRule(msg json.RawMessage) (*router.RoutingRule, error) {
 		rule.Attributes = rawFieldRule.Attributes
 	}
 
+	if rawFieldRule.Process != nil && len(*rawFieldRule.Process) > 0 {
+		rule.Process = *rawFieldRule.Process
+	}
+
 	return rule, nil
 }
 

infra/conf/transport_internet.go

@@ -16,7 +16,9 @@ import (
 	"github.com/xtls/xray-core/common/platform/filesystem"
 	"github.com/xtls/xray-core/common/serial"
 	"github.com/xtls/xray-core/transport/internet"
+	"github.com/xtls/xray-core/transport/internet/finalmask/salamander"
 	"github.com/xtls/xray-core/transport/internet/httpupgrade"
+	"github.com/xtls/xray-core/transport/internet/hysteria"
 	"github.com/xtls/xray-core/transport/internet/kcp"
 	"github.com/xtls/xray-core/transport/internet/reality"
 	"github.com/xtls/xray-core/transport/internet/splithttp"
@@ -332,6 +334,161 @@ func (c *SplitHTTPConfig) Build() (proto.Message, error) {
 	return config, nil
 }
 
+const (
+	Byte     = 1
+	Kilobyte = 1024 * Byte
+	Megabyte = 1024 * Kilobyte
+	Gigabyte = 1024 * Megabyte
+	Terabyte = 1024 * Gigabyte
+)
+
+type Bandwidth string
+
+func (b Bandwidth) Bps() (uint64, error) {
+	s := strings.TrimSpace(strings.ToLower(string(b)))
+	if s == "" {
+		return 0, nil
+	}
+
+	idx := len(s)
+	for i, c := range s {
+		if (c < '0' || c > '9') && c != '.' {
+			idx = i
+			break
+		}
+	}
+
+	numStr := s[:idx]
+	unit := strings.TrimSpace(s[idx:])
+
+	val, err := strconv.ParseFloat(numStr, 64)
+	if err != nil {
+		return 0, err
+	}
+
+	mul := uint64(1)
+	switch unit {
+	case "", "b", "bps":
+		mul = Byte
+	case "k", "kb", "kbps":
+		mul = Kilobyte
+	case "m", "mb", "mbps":
+		mul = Megabyte
+	case "g", "gb", "gbps":
+		mul = Gigabyte
+	case "t", "tb", "tbps":
+		mul = Terabyte
+	default:
+		return 0, errors.New("unsupported unit: " + unit)
+	}
+
+	return uint64(val*float64(mul)) / 8, nil
+}
+
+type UdpHop struct {
+	PortList json.RawMessage `json:"port"`
+	Interval int64           `json:"interval"`
+}
+
+type HysteriaConfig struct {
+	Version int32     `json:"version"`
+	Auth    string    `json:"auth"`
+	Up      Bandwidth `json:"up"`
+	Down    Bandwidth `json:"down"`
+	UdpHop  UdpHop    `json:"udphop"`
+
+	InitStreamReceiveWindow     uint64 `json:"initStreamReceiveWindow"`
+	MaxStreamReceiveWindow      uint64 `json:"maxStreamReceiveWindow"`
+	InitConnectionReceiveWindow uint64 `json:"initConnectionReceiveWindow"`
+	MaxConnectionReceiveWindow  uint64 `json:"maxConnectionReceiveWindow"`
+	MaxIdleTimeout              int64  `json:"maxIdleTimeout"`
+	KeepAlivePeriod             int64  `json:"keepAlivePeriod"`
+	DisablePathMTUDiscovery     bool   `json:"disablePathMTUDiscovery"`
+}
+
+func (c *HysteriaConfig) Build() (proto.Message, error) {
+	if c.Version != 2 {
+		return nil, errors.New("version != 2")
+	}
+	up, err := c.Up.Bps()
+	if err != nil {
+		return nil, err
+	}
+	down, err := c.Down.Bps()
+	if err != nil {
+		return nil, err
+	}
+	var hop *PortList
+	if err := json.Unmarshal(c.UdpHop.PortList, &hop); err != nil {
+		hop = &PortList{}
+	}
+
+	if up > 0 && up < 65536 {
+		return nil, errors.New("Up must be at least 65536 Bps")
+	}
+	if down > 0 && down < 65536 {
+		return nil, errors.New("Down must be at least 65536 Bps")
+	}
+	if c.UdpHop.Interval != 0 && c.UdpHop.Interval < 5 {
+		return nil, errors.New("Interval must be at least 5")
+	}
+
+	if c.InitStreamReceiveWindow > 0 && c.InitStreamReceiveWindow < 16384 {
+		return nil, errors.New("InitStreamReceiveWindow must be at least 16384")
+	}
+	if c.MaxStreamReceiveWindow > 0 && c.MaxStreamReceiveWindow < 16384 {
+		return nil, errors.New("MaxStreamReceiveWindow must be at least 16384")
+	}
+	if c.InitConnectionReceiveWindow > 0 && c.InitConnectionReceiveWindow < 16384 {
+		return nil, errors.New("InitConnectionReceiveWindow must be at least 16384")
+	}
+	if c.MaxConnectionReceiveWindow > 0 && c.MaxConnectionReceiveWindow < 16384 {
+		return nil, errors.New("MaxConnectionReceiveWindow must be at least 16384")
+	}
+	if c.MaxIdleTimeout != 0 && (c.MaxIdleTimeout < 4 || c.MaxIdleTimeout > 120) {
+		return nil, errors.New("MaxIdleTimeout must be between 4 and 120")
+	}
+	if c.KeepAlivePeriod != 0 && (c.KeepAlivePeriod < 2 || c.KeepAlivePeriod > 60) {
+		return nil, errors.New("KeepAlivePeriod must be between 2 and 60")
+	}
+
+	config := &hysteria.Config{}
+	config.Version = int32(c.Version)
+	config.Auth = c.Auth
+	config.Up = up
+	config.Down = down
+	config.Ports = hop.Build().Ports()
+	config.Interval = c.UdpHop.Interval
+	config.InitStreamReceiveWindow = c.InitStreamReceiveWindow
+	config.MaxStreamReceiveWindow = c.MaxStreamReceiveWindow
+	config.InitConnReceiveWindow = c.InitConnectionReceiveWindow
+	config.MaxConnReceiveWindow = c.MaxConnectionReceiveWindow
+	config.MaxIdleTimeout = c.MaxIdleTimeout
+	config.KeepAlivePeriod = c.KeepAlivePeriod
+	config.DisablePathMtuDiscovery = c.DisablePathMTUDiscovery
+
+	if config.InitStreamReceiveWindow == 0 {
+		config.InitStreamReceiveWindow = 8388608
+	}
+	if config.MaxStreamReceiveWindow == 0 {
+		config.MaxStreamReceiveWindow = 8388608
+	}
+	if config.InitConnReceiveWindow == 0 {
+		config.InitConnReceiveWindow = 8388608 * 5 / 2
+	}
+	if config.MaxConnReceiveWindow == 0 {
+		config.MaxConnReceiveWindow = 8388608 * 5 / 2
+	}
+	if config.MaxIdleTimeout == 0 {
+		config.MaxIdleTimeout = 30
+	}
+	// if config.KeepAlivePeriod == 0 {
+	// 	config.KeepAlivePeriod = 10
+	// }
+
+	return config, nil
+}
+
 func readFileOrString(f string, s []string) ([]byte, error) {
 	if len(f) > 0 {
 		return filesystem.ReadCert(f)
@@ -395,27 +552,26 @@ func (c *TLSCertConfig) Build() (*tls.Certificate, error) {
 }
 
 type TLSConfig struct {
-	Insecure                             bool             `json:"allowInsecure"`
-	Certs                                []*TLSCertConfig `json:"certificates"`
-	ServerName                           string           `json:"serverName"`
-	ALPN                                 *StringList      `json:"alpn"`
-	EnableSessionResumption              bool             `json:"enableSessionResumption"`
-	DisableSystemRoot                    bool             `json:"disableSystemRoot"`
-	MinVersion                           string           `json:"minVersion"`
-	MaxVersion                           string           `json:"maxVersion"`
-	CipherSuites                         string           `json:"cipherSuites"`
-	Fingerprint                          string           `json:"fingerprint"`
-	RejectUnknownSNI                     bool             `json:"rejectUnknownSni"`
-	PinnedPeerCertificateChainSha256     *[]string        `json:"pinnedPeerCertificateChainSha256"`
-	PinnedPeerCertificatePublicKeySha256 *[]string        `json:"pinnedPeerCertificatePublicKeySha256"`
-	CurvePreferences                     *StringList      `json:"curvePreferences"`
-	MasterKeyLog                         string           `json:"masterKeyLog"`
-	ServerNameToVerify                   string           `json:"serverNameToVerify"`
-	VerifyPeerCertInNames                []string         `json:"verifyPeerCertInNames"`
-	ECHServerKeys                        string           `json:"echServerKeys"`
-	ECHConfigList                        string           `json:"echConfigList"`
-	ECHForceQuery                        string           `json:"echForceQuery"`
-	ECHSocketSettings                    *SocketConfig    `json:"echSockopt"`
+	Insecure                bool             `json:"allowInsecure"`
+	Certs                   []*TLSCertConfig `json:"certificates"`
+	ServerName              string           `json:"serverName"`
+	ALPN                    *StringList      `json:"alpn"`
+	EnableSessionResumption bool             `json:"enableSessionResumption"`
+	DisableSystemRoot       bool             `json:"disableSystemRoot"`
+	MinVersion              string           `json:"minVersion"`
+	MaxVersion              string           `json:"maxVersion"`
+	CipherSuites            string           `json:"cipherSuites"`
+	Fingerprint             string           `json:"fingerprint"`
+	RejectUnknownSNI        bool             `json:"rejectUnknownSni"`
+	PinnedPeerCertSha256    string           `json:"pinnedPeerCertSha256"`
+	CurvePreferences        *StringList      `json:"curvePreferences"`
+	MasterKeyLog            string           `json:"masterKeyLog"`
+	ServerNameToVerify      string           `json:"serverNameToVerify"`
+	VerifyPeerCertInNames   []string         `json:"verifyPeerCertInNames"`
+	ECHServerKeys           string           `json:"echServerKeys"`
+	ECHConfigList           string           `json:"echConfigList"`
+	ECHForceQuery           string           `json:"echForceQuery"`
+	ECHSocketSettings       *SocketConfig    `json:"echSockopt"`
 }
 
 // Build implements Buildable.
@@ -458,25 +614,20 @@ func (c *TLSConfig) Build() (proto.Message, error) {
 	}
 	config.RejectUnknownSni = c.RejectUnknownSNI
 
-	if c.PinnedPeerCertificateChainSha256 != nil {
-		config.PinnedPeerCertificateChainSha256 = [][]byte{}
-		for _, v := range *c.PinnedPeerCertificateChainSha256 {
-			hashValue, err := base64.StdEncoding.DecodeString(v)
+	if c.PinnedPeerCertSha256 != "" {
+		config.PinnedPeerCertSha256 = [][]byte{}
+		// Split by tilde separator
+		hashes := strings.Split(c.PinnedPeerCertSha256, "~")
+		for _, v := range hashes {
+			v = strings.TrimSpace(v)
+			if v == "" {
+				continue
+			}
+			hashValue, err := hex.DecodeString(v)
 			if err != nil {
 				return nil, err
 			}
-			config.PinnedPeerCertificateChainSha256 = append(config.PinnedPeerCertificateChainSha256, hashValue)
-		}
-	}
-
-	if c.PinnedPeerCertificatePublicKeySha256 != nil {
-		config.PinnedPeerCertificatePublicKeySha256 = [][]byte{}
-		for _, v := range *c.PinnedPeerCertificatePublicKeySha256 {
-			hashValue, err := base64.StdEncoding.DecodeString(v)
-			if err != nil {
-				return nil, err
-			}
-			config.PinnedPeerCertificatePublicKeySha256 = append(config.PinnedPeerCertificatePublicKeySha256, hashValue)
+			config.PinnedPeerCertSha256 = append(config.PinnedPeerCertSha256, hashValue)
 		}
 	}
 
@@ -628,6 +779,9 @@ func (c *REALITYConfig) Build() (proto.Message, error) {
 		}
 		config.ShortIds = make([][]byte, len(c.ShortIds))
 		for i, s := range c.ShortIds {
+			if len(s) > 16 {
+				return nil, errors.New(`too long "shortIds[`, i, `]": `, s)
+			}
 			config.ShortIds[i] = make([]byte, 8)
 			if _, err = hex.Decode(config.ShortIds[i], []byte(s)); err != nil {
 				return nil, errors.New(`invalid "shortIds[`, i, `]": `, s)
@@ -679,6 +833,9 @@ func (c *REALITYConfig) Build() (proto.Message, error) {
 		if len(c.ShortIds) != 0 {
 			return nil, errors.New(`non-empty "shortIds", please use "shortId" instead`)
 		}
+		if len(c.ShortIds) > 16 {
+			return nil, errors.New(`too long "shortId": `, c.ShortId)
+		}
 		config.ShortId = make([]byte, 8)
 		if _, err = hex.Decode(config.ShortId, []byte(c.ShortId)); err != nil {
 			return nil, errors.New(`invalid "shortId": `, c.ShortId)
@@ -746,6 +903,8 @@ func (p TransportProtocol) Build() (string, error) {
 		return "", errors.PrintRemovedFeatureError("HTTP transport (without header padding, etc.)", "XHTTP stream-one H2 & H3")
 	case "quic":
 		return "", errors.PrintRemovedFeatureError("QUIC transport (without web service, etc.)", "XHTTP stream-one H3")
+	case "hysteria":
+		return "hysteria", nil
 	default:
 		return "", errors.New("Config: unknown transport protocol: ", p)
 	}
@@ -804,6 +963,7 @@ type SocketConfig struct {
 	CustomSockopt         []*CustomSockoptConfig `json:"customSockopt"`
 	AddressPortStrategy   string                 `json:"addressPortStrategy"`
 	HappyEyeballsSettings *HappyEyeballsConfig   `json:"happyEyeballs"`
+	TrustedXForwardedFor  []string               `json:"trustedXForwardedFor"`
 }
 
 // Build implements Buildable.
@@ -923,14 +1083,58 @@ func (c *SocketConfig) Build() (*internet.SocketConfig, error) {
 		CustomSockopt:        customSockopts,
 		AddressPortStrategy:  addressPortStrategy,
 		HappyEyeballs:        happyEyeballs,
+		TrustedXForwardedFor: c.TrustedXForwardedFor,
 	}, nil
 }
 
+var (
+	udpmaskLoader = NewJSONConfigLoader(ConfigCreatorCache{
+		"salamander": func() interface{} { return new(Salamander) },
+	}, "type", "settings")
+)
+
+type Salamander struct {
+	Password string `json:"password"`
+}
+
+func (c *Salamander) Build() (proto.Message, error) {
+	config := &salamander.Config{}
+	config.Password = c.Password
+	return config, nil
+}
+
+type FinalMask struct {
+	Type     string           `json:"type"`
+	Settings *json.RawMessage `json:"settings"`
+}
+
+func (c *FinalMask) Build(tcpmaskLoader bool) (proto.Message, error) {
+	loader := udpmaskLoader
+	if tcpmaskLoader {
+		return nil, errors.New("")
+	}
+
+	settings := []byte("{}")
+	if c.Settings != nil {
+		settings = ([]byte)(*c.Settings)
+	}
+	rawConfig, err := loader.LoadWithID(settings, c.Type)
+	if err != nil {
+		return nil, err
+	}
+	ts, err := rawConfig.(Buildable).Build()
+	if err != nil {
+		return nil, err
+	}
+	return ts, nil
+}
+
 type StreamConfig struct {
 	Address             *Address           `json:"address"`
 	Port                uint16             `json:"port"`
 	Network             *TransportProtocol `json:"network"`
 	Security            string             `json:"security"`
+	Udpmasks            []*FinalMask       `json:"udpmasks"`
 	TLSSettings         *TLSConfig         `json:"tlsSettings"`
 	REALITYSettings     *REALITYConfig     `json:"realitySettings"`
 	RAWSettings         *TCPConfig         `json:"rawSettings"`
@@ -941,6 +1145,7 @@ type StreamConfig struct {
 	GRPCSettings        *GRPCConfig        `json:"grpcSettings"`
 	WSSettings          *WebSocketConfig   `json:"wsSettings"`
 	HTTPUPGRADESettings *HttpUpgradeConfig `json:"httpupgradeSettings"`
+	HysteriaSettings    *HysteriaConfig    `json:"hysteriaSettings"`
 	SocketSettings      *SocketConfig      `json:"sockopt"`
 }
 
@@ -960,6 +1165,7 @@ func (c *StreamConfig) Build() (*internet.StreamConfig, error) {
 		}
 		config.ProtocolName = protocol
 	}
+
 	switch strings.ToLower(c.Security) {
 	case "", "none":
 	case "tls":
@@ -993,6 +1199,7 @@ func (c *StreamConfig) Build() (*internet.StreamConfig, error) {
 	default:
 		return nil, errors.New(`Unknown security "` + c.Security + `".`)
 	}
+
 	if c.RAWSettings != nil {
 		c.TCPSettings = c.RAWSettings
 	}
@@ -1059,6 +1266,16 @@ func (c *StreamConfig) Build() (*internet.StreamConfig, error) {
 			Settings:     serial.ToTypedMessage(hs),
 		})
 	}
+	if c.HysteriaSettings != nil {
+		hs, err := c.HysteriaSettings.Build()
+		if err != nil {
+			return nil, errors.New("Failed to build Hysteria config.").Base(err)
+		}
+		config.TransportSettings = append(config.TransportSettings, &internet.TransportConfig{
+			ProtocolName: "hysteria",
+			Settings:     serial.ToTypedMessage(hs),
+		})
+	}
 	if c.SocketSettings != nil {
 		ss, err := c.SocketSettings.Build()
 		if err != nil {
@@ -1066,6 +1283,15 @@ func (c *StreamConfig) Build() (*internet.StreamConfig, error) {
 		}
 		config.SocketSettings = ss
 	}
+
+	for _, mask := range c.Udpmasks {
+		u, err := mask.Build(false)
+		if err != nil {
+			return nil, errors.New("failed to build mask with type ", mask.Type).Base(err)
+		}
+		config.Udpmasks = append(config.Udpmasks, serial.ToTypedMessage(u))
+	}
+
 	return config, nil
 }
 

infra/conf/tun.go

@@ -0,0 +1,30 @@
+package conf
+
+import (
+	"github.com/xtls/xray-core/proxy/tun"
+	"google.golang.org/protobuf/proto"
+)
+
+type TunConfig struct {
+	Name      string `json:"name"`
+	MTU       uint32 `json:"MTU"`
+	UserLevel uint32 `json:"userLevel"`
+}
+
+func (v *TunConfig) Build() (proto.Message, error) {
+	config := &tun.Config{
+		Name:      v.Name,
+		MTU:       v.MTU,
+		UserLevel: v.UserLevel,
+	}
+
+	if v.Name == "" {
+		config.Name = "xray0"
+	}
+
+	if v.MTU == 0 {
+		config.MTU = 1500
+	}
+
+	return config, nil
+}

infra/conf/vless.go

@@ -34,6 +34,7 @@ type VLessInboundConfig struct {
 	Decryption string                  `json:"decryption"`
 	Fallbacks  []*VLessInboundFallback `json:"fallbacks"`
 	Flow       string                  `json:"flow"`
+	Testseed   []uint32                `json:"testseed"`
 }
 
 // Build implements Buildable
@@ -73,6 +74,10 @@ func (c *VLessInboundConfig) Build() (proto.Message, error) {
 			return nil, errors.New(`VLESS clients: "flow" doesn't support "` + account.Flow + `" in this version`)
 		}
 
+		if len(account.Testseed) < 4 {
+			account.Testseed = c.Testseed
+		}
+
 		if account.Encryption != "" {
 			return nil, errors.New(`VLESS clients: "encryption" should not be in inbound settings`)
 		}
@@ -213,6 +218,7 @@ type VLessOutboundConfig struct {
 	Encryption string                `json:"encryption"`
 	Reverse    *vless.Reverse        `json:"reverse"`
 	Testpre    uint32                `json:"testpre"`
+	Testseed   []uint32              `json:"testseed"`
 	Vnext      []*VLessOutboundVnext `json:"vnext"`
 }
 
@@ -260,6 +266,7 @@ func (c *VLessOutboundConfig) Build() (proto.Message, error) {
 				account.Encryption = c.Encryption
 				account.Reverse = c.Reverse
 				account.Testpre = c.Testpre
+				account.Testseed = c.Testseed
 			} else {
 				if err := json.Unmarshal(rawUser, account); err != nil {
 					return nil, errors.New(`VLESS users: invalid user`).Base(err)

infra/conf/xray.go

@@ -3,8 +3,6 @@ package conf
 import (
 	"context"
 	"encoding/json"
-	"log"
-	"os"
 	"path/filepath"
 	"strings"
 
@@ -30,6 +28,7 @@ var (
 		"vmess":         func() interface{} { return new(VMessInboundConfig) },
 		"trojan":        func() interface{} { return new(TrojanServerConfig) },
 		"wireguard":     func() interface{} { return &WireGuardConfig{IsClient: false} },
+		"tun":           func() interface{} { return new(TunConfig) },
 	}, "protocol", "settings")
 
 	outboundConfigLoader = NewJSONConfigLoader(ConfigCreatorCache{
@@ -44,11 +43,10 @@ var (
 		"vless":       func() interface{} { return new(VLessOutboundConfig) },
 		"vmess":       func() interface{} { return new(VMessOutboundConfig) },
 		"trojan":      func() interface{} { return new(TrojanClientConfig) },
+		"hysteria":    func() interface{} { return new(HysteriaClientConfig) },
 		"dns":         func() interface{} { return new(DNSOutboundConfig) },
 		"wireguard":   func() interface{} { return &WireGuardConfig{IsClient: true} },
 	}, "protocol", "settings")
-
-	ctllog = log.New(os.Stderr, "xctl> ", 0)
 )
 
 type SniffingConfig struct {
@@ -120,20 +118,23 @@ func (m *MuxConfig) Build() (*proxyman.MultiplexingConfig, error) {
 }
 
 type InboundDetourConfig struct {
-	Protocol       string                         `json:"protocol"`
-	PortList       *PortList                      `json:"port"`
-	ListenOn       *Address                       `json:"listen"`
-	Settings       *json.RawMessage               `json:"settings"`
-	Tag            string                         `json:"tag"`
-	StreamSetting  *StreamConfig                  `json:"streamSettings"`
-	SniffingConfig *SniffingConfig                `json:"sniffing"`
+	Protocol       string           `json:"protocol"`
+	PortList       *PortList        `json:"port"`
+	ListenOn       *Address         `json:"listen"`
+	Settings       *json.RawMessage `json:"settings"`
+	Tag            string           `json:"tag"`
+	StreamSetting  *StreamConfig    `json:"streamSettings"`
+	SniffingConfig *SniffingConfig  `json:"sniffing"`
 }
 
 // Build implements Buildable.
 func (c *InboundDetourConfig) Build() (*core.InboundHandlerConfig, error) {
 	receiverSettings := &proxyman.ReceiverConfig{}
 
-	if c.ListenOn == nil {
+	// TUN inbound doesn't need port configuration as it uses network interface instead
+	if strings.ToLower(c.Protocol) == "tun" {
+		// Skip port validation for TUN
+	} else if c.ListenOn == nil {
 		// Listen on anyip, must set PortList
 		if c.PortList == nil {
 			return nil, errors.New("Listen on AnyIP but no Port(s) set in InboundDetour.")

main/commands/all/api/api.go

@@ -32,5 +32,6 @@ var CmdAPI = &base.Command{
 		cmdSourceIpBlock,
 		cmdOnlineStats,
 		cmdOnlineStatsIpList,
+		cmdGetAllOnlineUsers,
 	},
 }

main/commands/all/api/stats_get_all_online_users.go

@@ -0,0 +1,43 @@
+package api
+
+import (
+	statsService "github.com/xtls/xray-core/app/stats/command"
+	"github.com/xtls/xray-core/main/commands/base"
+)
+
+var cmdGetAllOnlineUsers = &base.Command{
+	CustomFlags: true,
+	UsageLine:   "{{.Exec}} api statsgetallonlineusers [--server=127.0.0.1:8080]",
+	Short:       "Retrieve array of all online users",
+	Long: `
+Retrieve array of all online users.
+
+Arguments:
+
+	-s, -server <server:port>
+		The API server address. Default 127.0.0.1:8080
+
+	-t, -timeout <seconds>
+		Timeout in seconds for calling API. Default 3
+
+Example:
+
+	{{.Exec}} {{.LongName}} --server=127.0.0.1:8080"
+`,
+	Run: executeGetAllOnlineUsers,
+}
+
+func executeGetAllOnlineUsers(cmd *base.Command, args []string) {
+	setSharedFlags(cmd)
+	cmd.Flag.Parse(args)
+	conn, ctx, close := dialAPIServer()
+	defer close()
+
+	client := statsService.NewStatsServiceClient(conn)
+	r := &statsService.GetAllOnlineUsersRequest{}
+	resp, err := client.GetAllOnlineUsers(ctx, r)
+	if err != nil {
+		base.Fatalf("failed to get stats: %s", err)
+	}
+	showJSONResponse(resp)
+}

main/commands/all/convert/protobuf.go

@@ -3,7 +3,6 @@ package convert
 import (
 	"fmt"
 	"os"
-	"strings"
 
 	"github.com/xtls/xray-core/common/cmdarg"
 	creflect "github.com/xtls/xray-core/common/reflect"
@@ -61,7 +60,7 @@ func executeConvertConfigsToProtobuf(cmd *base.Command, args []string) {
 	}
 
 	if len(optFile) > 0 {
-		switch core.GetFormatByExtension(getFileExtension(optFile)){
+		switch core.GetFormat(optFile){
 		case "protobuf", "":
 			fmt.Println("Output ProtoBuf file is ", optFile)
 		default:
@@ -106,11 +105,3 @@ func executeConvertConfigsToProtobuf(cmd *base.Command, args []string) {
 		}
 	}
 }
-
-func getFileExtension(filename string) string {
-	idx := strings.LastIndexByte(filename, '.')
-	if idx == -1 {
-		return ""
-	}
-	return filename[idx+1:]
-}

main/commands/all/tls/certchainhash.go

@@ -1,40 +0,0 @@
-package tls
-
-import (
-	"flag"
-	"fmt"
-	"os"
-
-	"github.com/xtls/xray-core/main/commands/base"
-	"github.com/xtls/xray-core/transport/internet/tls"
-)
-
-var cmdCertChainHash = &base.Command{
-	UsageLine: "{{.Exec}} certChainHash",
-	Short:     "Calculate TLS certificates hash.",
-	Long: `
-	xray tls certChainHash --cert <cert.pem>
-	Calculate TLS certificate chain hash.
-	`,
-}
-
-func init() {
-	cmdCertChainHash.Run = executeCertChainHash // break init loop
-}
-
-var input = cmdCertChainHash.Flag.String("cert", "fullchain.pem", "The file path of the certificates chain")
-
-func executeCertChainHash(cmd *base.Command, args []string) {
-	fs := flag.NewFlagSet("certChainHash", flag.ContinueOnError)
-	if err := fs.Parse(args); err != nil {
-		fmt.Println(err)
-		return
-	}
-	certContent, err := os.ReadFile(*input)
-	if err != nil {
-		fmt.Println(err)
-		return
-	}
-	certChainHashB64 := tls.CalculatePEMCertChainSHA256Hash(certContent)
-	fmt.Println(certChainHashB64)
-}

main/commands/all/tls/leafcerthash.go

@@ -0,0 +1,44 @@
+package tls
+
+import (
+	"flag"
+	"fmt"
+	"os"
+
+	"github.com/xtls/xray-core/main/commands/base"
+	"github.com/xtls/xray-core/transport/internet/tls"
+)
+
+var cmdLeafCertHash = &base.Command{
+	UsageLine: "{{.Exec}} tls leafCertHash",
+	Short:     "Calculate TLS leaf certificate hash.",
+	Long: `
+	xray tls leafCertHash --cert <cert.pem>
+	Calculate TLS leaf certificate hash.
+	`,
+}
+
+func init() {
+	cmdLeafCertHash.Run = executeLeafCertHash // break init loop
+}
+
+var input = cmdLeafCertHash.Flag.String("cert", "fullchain.pem", "The file path of the leaf certificate")
+
+func executeLeafCertHash(cmd *base.Command, args []string) {
+	fs := flag.NewFlagSet("leafCertHash", flag.ContinueOnError)
+	if err := fs.Parse(args); err != nil {
+		fmt.Println(err)
+		return
+	}
+	certContent, err := os.ReadFile(*input)
+	if err != nil {
+		fmt.Println(err)
+		return
+	}
+	certChainHashB64, err := tls.CalculatePEMLeafCertSHA256Hash(certContent)
+	if err != nil {
+		fmt.Println("failed to decode cert", err)
+		return
+	}
+	fmt.Println(certChainHashB64)
+}

main/commands/all/tls/ping.go

@@ -3,7 +3,7 @@ package tls
 import (
 	gotls "crypto/tls"
 	"crypto/x509"
-	"encoding/base64"
+	"encoding/hex"
 	"fmt"
 	"net"
 	"strconv"
@@ -156,8 +156,14 @@ func printTLSConnDetail(tlsConn *gotls.Conn) {
 
 func showCert() func(rawCerts [][]byte, verifiedChains [][]*x509.Certificate) error {
 	return func(rawCerts [][]byte, verifiedChains [][]*x509.Certificate) error {
-		hash := GenerateCertChainHash(rawCerts)
-		fmt.Println("Certificate Chain Hash: ", base64.StdEncoding.EncodeToString(hash))
+		var hash []byte
+		for _, asn1Data := range rawCerts {
+			cert, _ := x509.ParseCertificate(asn1Data)
+			if cert.IsCA {
+				hash = GenerateCertHash(cert)
+			}
+		}
+		fmt.Println("Certificate Leaf Hash: ", hex.EncodeToString(hash))
 		return nil
 	}
 }

main/commands/all/tls/tls.go

@@ -13,7 +13,7 @@ var CmdTLS = &base.Command{
 	Commands: []*base.Command{
 		cmdCert,
 		cmdPing,
-		cmdCertChainHash,
+		cmdLeafCertHash,
 		cmdECH,
 	},
 }

main/confloader/confloader.go

@@ -10,12 +10,10 @@ import (
 
 type (
 	configFileLoader func(string) (io.Reader, error)
-	extconfigLoader  func([]string, io.Reader) (io.Reader, error)
 )
 
 var (
 	EffectiveConfigFileLoader configFileLoader
-	EffectiveExtConfigLoader  extconfigLoader
 )
 
 // LoadConfig reads from a path/url/stdin
@@ -27,13 +25,3 @@ func LoadConfig(file string) (io.Reader, error) {
 	}
 	return EffectiveConfigFileLoader(file)
 }
-
-// LoadExtConfig calls xctl to handle multiple config
-// the actual work also in external module
-func LoadExtConfig(files []string, reader io.Reader) (io.Reader, error) {
-	if EffectiveExtConfigLoader == nil {
-		return nil, errors.New("external config module not loaded").AtError()
-	}
-
-	return EffectiveExtConfigLoader(files, reader)
-}

main/confloader/external/external.go

@@ -13,7 +13,6 @@ import (
 
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/errors"
-	"github.com/xtls/xray-core/common/platform/ctlcmd"
 	"github.com/xtls/xray-core/main/confloader"
 )
 
@@ -129,16 +128,6 @@ func FetchUnixSocketHTTPContent(target string) ([]byte, error) {
 	return content, nil
 }
 
-func ExtConfigLoader(files []string, reader io.Reader) (io.Reader, error) {
-	buf, err := ctlcmd.Run(append([]string{"convert"}, files...), reader)
-	if err != nil {
-		return nil, err
-	}
-
-	return strings.NewReader(buf.String()), nil
-}
-
 func init() {
 	confloader.EffectiveConfigFileLoader = ConfigLoader
-	confloader.EffectiveExtConfigLoader = ExtConfigLoader
 }

proxy/dokodemo/dokodemo.go

@@ -111,7 +111,8 @@ func (d *DokodemoDoor) Process(ctx context.Context, network net.Network, conn st
 				destinationOverridden = true
 			}
 		}
-		if tlsConn, ok := conn.(tls.Interface); ok && !destinationOverridden {
+		iConn := stat.TryUnwrapStatsConn(conn)
+		if tlsConn, ok := iConn.(tls.Interface); ok && !destinationOverridden {
 			if serverName := tlsConn.HandshakeContextServerName(ctx); serverName != "" {
 				dest.Address = net.DomainAddress(serverName)
 				destinationOverridden = true

proxy/http/client.go

@@ -296,10 +296,7 @@ func setUpHTTPTunnel(ctx context.Context, dest net.Destination, target string, u
 		return nil, err
 	}
 
-	iConn := rawConn
-	if statConn, ok := iConn.(*stat.CounterConnection); ok {
-		iConn = statConn.Connection
-	}
+	iConn := stat.TryUnwrapStatsConn(rawConn)
 
 	nextProto := ""
 	if tlsConn, ok := iConn.(*tls.Conn); ok {
@@ -308,6 +305,12 @@ func setUpHTTPTunnel(ctx context.Context, dest net.Destination, target string, u
 			return nil, err
 		}
 		nextProto = tlsConn.ConnectionState().NegotiatedProtocol
+	} else if tlsConn, ok := iConn.(*tls.UConn); ok {
+		if err := tlsConn.HandshakeContext(ctx); err != nil {
+			rawConn.Close()
+			return nil, err
+		}
+		nextProto = tlsConn.ConnectionState().NegotiatedProtocol
 	}
 
 	switch nextProto {

proxy/hysteria/client.go

@@ -0,0 +1,263 @@
+package hysteria
+
+import (
+	"context"
+	go_errors "errors"
+	"io"
+	"math/rand"
+
+	"github.com/apernet/quic-go"
+	"github.com/xtls/xray-core/common"
+	"github.com/xtls/xray-core/common/buf"
+	"github.com/xtls/xray-core/common/errors"
+	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/protocol"
+	"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/core"
+	"github.com/xtls/xray-core/features/policy"
+	"github.com/xtls/xray-core/transport"
+	"github.com/xtls/xray-core/transport/internet"
+	"github.com/xtls/xray-core/transport/internet/hysteria"
+	"github.com/xtls/xray-core/transport/internet/stat"
+)
+
+type Client struct {
+	server        *protocol.ServerSpec
+	policyManager policy.Manager
+}
+
+func NewClient(ctx context.Context, config *ClientConfig) (*Client, error) {
+	if config.Server == nil {
+		return nil, errors.New(`no target server found`)
+	}
+	server, err := protocol.NewServerSpecFromPB(config.Server)
+	if err != nil {
+		return nil, errors.New("failed to get server spec").Base(err)
+	}
+
+	v := core.MustFromContext(ctx)
+	client := &Client{
+		server:        server,
+		policyManager: v.GetFeature(policy.ManagerType()).(policy.Manager),
+	}
+	return client, nil
+}
+
+func (c *Client) Process(ctx context.Context, link *transport.Link, dialer internet.Dialer) error {
+	outbounds := session.OutboundsFromContext(ctx)
+	ob := outbounds[len(outbounds)-1]
+	if !ob.Target.IsValid() {
+		return errors.New("target not specified")
+	}
+	ob.Name = "hysteria"
+	ob.CanSpliceCopy = 3
+	target := ob.Target
+
+	conn, err := dialer.Dial(ctx, c.server.Destination)
+	if err != nil {
+		return errors.New("failed to find an available destination").AtWarning().Base(err)
+	}
+	defer conn.Close()
+	errors.LogInfo(ctx, "tunneling request to ", target, " via ", target.Network, ":", c.server.Destination.NetAddr())
+
+	var newCtx context.Context
+	var newCancel context.CancelFunc
+	if session.TimeoutOnlyFromContext(ctx) {
+		newCtx, newCancel = context.WithCancel(context.Background())
+	}
+
+	sessionPolicy := c.policyManager.ForLevel(0)
+	ctx, cancel := context.WithCancel(ctx)
+	timer := signal.CancelAfterInactivity(ctx, func() {
+		cancel()
+		if newCancel != nil {
+			newCancel()
+		}
+	}, sessionPolicy.Timeouts.ConnectionIdle)
+
+	if newCtx != nil {
+		ctx = newCtx
+	}
+
+	if target.Network == net.Network_TCP {
+		requestDone := func() error {
+			defer timer.SetTimeout(sessionPolicy.Timeouts.DownlinkOnly)
+			bufferedWriter := buf.NewBufferedWriter(buf.NewWriter(conn))
+			err := WriteTCPRequest(bufferedWriter, target.NetAddr())
+			if err != nil {
+				return errors.New("failed to write request").Base(err)
+			}
+			if err := bufferedWriter.SetBuffered(false); err != nil {
+				return err
+			}
+			return buf.Copy(link.Reader, bufferedWriter, buf.UpdateActivity(timer))
+		}
+
+		responseDone := func() error {
+			defer timer.SetTimeout(sessionPolicy.Timeouts.UplinkOnly)
+			ok, msg, err := ReadTCPResponse(conn)
+			if err != nil {
+				return err
+			}
+			if !ok {
+				return errors.New(msg)
+			}
+			return buf.Copy(buf.NewReader(conn), link.Writer, buf.UpdateActivity(timer))
+		}
+
+		responseDoneAndCloseWriter := task.OnSuccess(responseDone, task.Close(link.Writer))
+		if err := task.Run(ctx, requestDone, responseDoneAndCloseWriter); err != nil {
+			return errors.New("connection ends").Base(err)
+		}
+
+		return nil
+	}
+
+	if target.Network == net.Network_UDP {
+		iConn := stat.TryUnwrapStatsConn(conn)
+		_, ok := iConn.(*hysteria.InterUdpConn)
+		if !ok {
+			return errors.New("udp requires hysteria udp transport")
+		}
+
+		requestDone := func() error {
+			defer timer.SetTimeout(sessionPolicy.Timeouts.DownlinkOnly)
+
+			writer := &UDPWriter{
+				Writer: conn,
+				buf:    make([]byte, MaxUDPSize),
+				addr:   target.NetAddr(),
+			}
+
+			if err := buf.Copy(link.Reader, writer, buf.UpdateActivity(timer)); err != nil {
+				return errors.New("failed to transport all UDP request").Base(err)
+			}
+			return nil
+		}
+
+		responseDone := func() error {
+			defer timer.SetTimeout(sessionPolicy.Timeouts.UplinkOnly)
+
+			reader := &UDPReader{
+				Reader: conn,
+				df:     &Defragger{},
+			}
+
+			if err := buf.Copy(reader, link.Writer, buf.UpdateActivity(timer)); err != nil {
+				return errors.New("failed to transport all UDP response").Base(err)
+			}
+			return nil
+		}
+
+		responseDoneAndCloseWriter := task.OnSuccess(responseDone, task.Close(link.Writer))
+		if err := task.Run(ctx, requestDone, responseDoneAndCloseWriter); err != nil {
+			return errors.New("connection ends").Base(err)
+		}
+
+		return nil
+	}
+
+	return nil
+}
+
+func init() {
+	common.Must(common.RegisterConfig((*ClientConfig)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
+		return NewClient(ctx, config.(*ClientConfig))
+	}))
+}
+
+type UDPWriter struct {
+	Writer io.Writer
+	buf    []byte
+	addr   string
+}
+
+func (w *UDPWriter) sendMsg(msg *UDPMessage) error {
+	msgN := msg.Serialize(w.buf)
+	if msgN < 0 {
+		// Message larger than buffer, silent drop
+		return nil
+	}
+	_, err := w.Writer.Write(w.buf[:msgN])
+	return err
+}
+
+func (w *UDPWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
+	for {
+		mb2, b := buf.SplitFirst(mb)
+		mb = mb2
+		if b == nil {
+			break
+		}
+		addr := w.addr
+		if b.UDP != nil {
+			addr = b.UDP.NetAddr()
+		}
+		msg := &UDPMessage{
+			SessionID: 0,
+			PacketID:  0,
+			FragID:    0,
+			FragCount: 1,
+			Addr:      addr,
+			Data:      b.Bytes(),
+		}
+		if err := w.sendMsg(msg); err != nil {
+			var errTooLarge *quic.DatagramTooLargeError
+			if go_errors.As(err, &errTooLarge) {
+				msg.PacketID = uint16(rand.Intn(0xFFFF)) + 1
+				fMsgs := FragUDPMessage(msg, int(errTooLarge.MaxDatagramPayloadSize))
+				for _, fMsg := range fMsgs {
+					err := w.sendMsg(&fMsg)
+					if err != nil {
+						b.Release()
+						buf.ReleaseMulti(mb)
+						return err
+					}
+				}
+			} else {
+				b.Release()
+				buf.ReleaseMulti(mb)
+				return err
+			}
+		}
+		b.Release()
+	}
+	return nil
+}
+
+type UDPReader struct {
+	Reader io.Reader
+	df     *Defragger
+}
+
+func (r *UDPReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
+	for {
+		b := buf.New()
+		_, err := b.ReadFrom(r.Reader)
+		if err != nil {
+			b.Release()
+			return nil, err
+		}
+
+		msg, err := ParseUDPMessage(b.Bytes())
+		if err != nil {
+			b.Release()
+			continue
+		}
+
+		dfMsg := r.df.Feed(msg)
+		if dfMsg == nil {
+			continue
+		}
+
+		dest, _ := net.ParseDestination("udp:" + dfMsg.Addr)
+
+		buffer := buf.New()
+		buffer.Write(dfMsg.Data)
+		buffer.UDP = &dest
+
+		return buf.MultiBuffer{buffer}, nil
+	}
+}

proxy/hysteria/config.go

@@ -0,0 +1,10 @@
+package hysteria
+
+import (
+	"github.com/xtls/xray-core/transport/internet/hysteria/padding"
+)
+
+var (
+	tcpRequestPadding = padding.Padding{Min: 64, Max: 512}
+	// tcpResponsePadding = padding.Padding{Min: 128, Max: 1024}
+)

proxy/hysteria/config.pb.go

@@ -0,0 +1,126 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.36.10
+// 	protoc        v6.33.1
+// source: proxy/hysteria/config.proto
+
+package hysteria
+
+import (
+	protocol "github.com/xtls/xray-core/common/protocol"
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+	unsafe "unsafe"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type ClientConfig struct {
+	state         protoimpl.MessageState   `protogen:"open.v1"`
+	Server        *protocol.ServerEndpoint `protobuf:"bytes,1,opt,name=server,proto3" json:"server,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *ClientConfig) Reset() {
+	*x = ClientConfig{}
+	mi := &file_proxy_hysteria_config_proto_msgTypes[0]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *ClientConfig) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ClientConfig) ProtoMessage() {}
+
+func (x *ClientConfig) ProtoReflect() protoreflect.Message {
+	mi := &file_proxy_hysteria_config_proto_msgTypes[0]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ClientConfig.ProtoReflect.Descriptor instead.
+func (*ClientConfig) Descriptor() ([]byte, []int) {
+	return file_proxy_hysteria_config_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *ClientConfig) GetServer() *protocol.ServerEndpoint {
+	if x != nil {
+		return x.Server
+	}
+	return nil
+}
+
+var File_proxy_hysteria_config_proto protoreflect.FileDescriptor
+
+const file_proxy_hysteria_config_proto_rawDesc = "" +
+	"\n" +
+	"\x1bproxy/hysteria/config.proto\x12\x13xray.proxy.hysteria\x1a!common/protocol/server_spec.proto\"L\n" +
+	"\fClientConfig\x12<\n" +
+	"\x06server\x18\x01 \x01(\v2$.xray.common.protocol.ServerEndpointR\x06serverB[\n" +
+	"\x17com.xray.proxy.hysteriaP\x01Z(github.com/xtls/xray-core/proxy/hysteria\xaa\x02\x13Xray.Proxy.Hysteriab\x06proto3"
+
+var (
+	file_proxy_hysteria_config_proto_rawDescOnce sync.Once
+	file_proxy_hysteria_config_proto_rawDescData []byte
+)
+
+func file_proxy_hysteria_config_proto_rawDescGZIP() []byte {
+	file_proxy_hysteria_config_proto_rawDescOnce.Do(func() {
+		file_proxy_hysteria_config_proto_rawDescData = protoimpl.X.CompressGZIP(unsafe.Slice(unsafe.StringData(file_proxy_hysteria_config_proto_rawDesc), len(file_proxy_hysteria_config_proto_rawDesc)))
+	})
+	return file_proxy_hysteria_config_proto_rawDescData
+}
+
+var file_proxy_hysteria_config_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
+var file_proxy_hysteria_config_proto_goTypes = []any{
+	(*ClientConfig)(nil),            // 0: xray.proxy.hysteria.ClientConfig
+	(*protocol.ServerEndpoint)(nil), // 1: xray.common.protocol.ServerEndpoint
+}
+var file_proxy_hysteria_config_proto_depIdxs = []int32{
+	1, // 0: xray.proxy.hysteria.ClientConfig.server:type_name -> xray.common.protocol.ServerEndpoint
+	1, // [1:1] is the sub-list for method output_type
+	1, // [1:1] is the sub-list for method input_type
+	1, // [1:1] is the sub-list for extension type_name
+	1, // [1:1] is the sub-list for extension extendee
+	0, // [0:1] is the sub-list for field type_name
+}
+
+func init() { file_proxy_hysteria_config_proto_init() }
+func file_proxy_hysteria_config_proto_init() {
+	if File_proxy_hysteria_config_proto != nil {
+		return
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: unsafe.Slice(unsafe.StringData(file_proxy_hysteria_config_proto_rawDesc), len(file_proxy_hysteria_config_proto_rawDesc)),
+			NumEnums:      0,
+			NumMessages:   1,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_proxy_hysteria_config_proto_goTypes,
+		DependencyIndexes: file_proxy_hysteria_config_proto_depIdxs,
+		MessageInfos:      file_proxy_hysteria_config_proto_msgTypes,
+	}.Build()
+	File_proxy_hysteria_config_proto = out.File
+	file_proxy_hysteria_config_proto_goTypes = nil
+	file_proxy_hysteria_config_proto_depIdxs = nil
+}

proxy/hysteria/config.proto

@@ -0,0 +1,13 @@
+syntax = "proto3";
+
+package xray.proxy.hysteria;
+option csharp_namespace = "Xray.Proxy.Hysteria";
+option go_package = "github.com/xtls/xray-core/proxy/hysteria";
+option java_package = "com.xray.proxy.hysteria";
+option java_multiple_files = true;
+
+import "common/protocol/server_spec.proto";
+
+message ClientConfig {
+  xray.common.protocol.ServerEndpoint server = 1;
+}

proxy/hysteria/frag.go

@@ -0,0 +1,73 @@
+package hysteria
+
+func FragUDPMessage(m *UDPMessage, maxSize int) []UDPMessage {
+	if m.Size() <= maxSize {
+		return []UDPMessage{*m}
+	}
+	fullPayload := m.Data
+	maxPayloadSize := maxSize - m.HeaderSize()
+	off := 0
+	fragID := uint8(0)
+	fragCount := uint8((len(fullPayload) + maxPayloadSize - 1) / maxPayloadSize) // round up
+	frags := make([]UDPMessage, fragCount)
+	for off < len(fullPayload) {
+		payloadSize := len(fullPayload) - off
+		if payloadSize > maxPayloadSize {
+			payloadSize = maxPayloadSize
+		}
+		frag := *m
+		frag.FragID = fragID
+		frag.FragCount = fragCount
+		frag.Data = fullPayload[off : off+payloadSize]
+		frags[fragID] = frag
+		off += payloadSize
+		fragID++
+	}
+	return frags
+}
+
+// Defragger handles the defragmentation of UDP messages.
+// The current implementation can only handle one packet ID at a time.
+// If another packet arrives before a packet has received all fragments
+// in their entirety, any previous state is discarded.
+type Defragger struct {
+	pktID uint16
+	frags []*UDPMessage
+	count uint8
+	size  int // data size
+}
+
+func (d *Defragger) Feed(m *UDPMessage) *UDPMessage {
+	if m.FragCount <= 1 {
+		return m
+	}
+	if m.FragID >= m.FragCount {
+		// wtf is this?
+		return nil
+	}
+	if m.PacketID != d.pktID || m.FragCount != uint8(len(d.frags)) {
+		// new message, clear previous state
+		d.pktID = m.PacketID
+		d.frags = make([]*UDPMessage, m.FragCount)
+		d.frags[m.FragID] = m
+		d.count = 1
+		d.size = len(m.Data)
+	} else if d.frags[m.FragID] == nil {
+		d.frags[m.FragID] = m
+		d.count++
+		d.size += len(m.Data)
+		if int(d.count) == len(d.frags) {
+			// all fragments received, assemble
+			data := make([]byte, d.size)
+			off := 0
+			for _, frag := range d.frags {
+				off += copy(data[off:], frag.Data)
+			}
+			m.Data = data
+			m.FragID = 0
+			m.FragCount = 1
+			return m
+		}
+	}
+	return nil
+}

proxy/hysteria/protocol.go

@@ -0,0 +1,204 @@
+package hysteria
+
+import (
+	"bytes"
+	"encoding/binary"
+	"fmt"
+	"io"
+
+	"github.com/apernet/quic-go/quicvarint"
+	"github.com/xtls/xray-core/common/errors"
+)
+
+const (
+	FrameTypeTCPRequest = 0x401
+
+	// Max length values are for preventing DoS attacks
+
+	MaxAddressLength = 2048
+	MaxMessageLength = 2048
+	MaxPaddingLength = 4096
+
+	MaxUDPSize = 4096
+
+	maxVarInt1 = 63
+	maxVarInt2 = 16383
+	maxVarInt4 = 1073741823
+	maxVarInt8 = 4611686018427387903
+)
+
+// TCPRequest format:
+// 0x401 (QUIC varint)
+// Address length (QUIC varint)
+// Address (bytes)
+// Padding length (QUIC varint)
+// Padding (bytes)
+
+func WriteTCPRequest(w io.Writer, addr string) error {
+	padding := tcpRequestPadding.String()
+	paddingLen := len(padding)
+	addrLen := len(addr)
+	sz := int(quicvarint.Len(FrameTypeTCPRequest)) +
+		int(quicvarint.Len(uint64(addrLen))) + addrLen +
+		int(quicvarint.Len(uint64(paddingLen))) + paddingLen
+	buf := make([]byte, sz)
+	i := varintPut(buf, FrameTypeTCPRequest)
+	i += varintPut(buf[i:], uint64(addrLen))
+	i += copy(buf[i:], addr)
+	i += varintPut(buf[i:], uint64(paddingLen))
+	copy(buf[i:], padding)
+	_, err := w.Write(buf)
+	return err
+}
+
+// TCPResponse format:
+// Status (byte, 0=ok, 1=error)
+// Message length (QUIC varint)
+// Message (bytes)
+// Padding length (QUIC varint)
+// Padding (bytes)
+
+func ReadTCPResponse(r io.Reader) (bool, string, error) {
+	var status [1]byte
+	if _, err := io.ReadFull(r, status[:]); err != nil {
+		return false, "", err
+	}
+	bReader := quicvarint.NewReader(r)
+	msgLen, err := quicvarint.Read(bReader)
+	if err != nil {
+		return false, "", err
+	}
+	if msgLen > MaxMessageLength {
+		return false, "", errors.New("invalid message length")
+	}
+	var msgBuf []byte
+	// No message is fine
+	if msgLen > 0 {
+		msgBuf = make([]byte, msgLen)
+		_, err = io.ReadFull(r, msgBuf)
+		if err != nil {
+			return false, "", err
+		}
+	}
+	paddingLen, err := quicvarint.Read(bReader)
+	if err != nil {
+		return false, "", err
+	}
+	if paddingLen > MaxPaddingLength {
+		return false, "", errors.New("invalid padding length")
+	}
+	if paddingLen > 0 {
+		_, err = io.CopyN(io.Discard, r, int64(paddingLen))
+		if err != nil {
+			return false, "", err
+		}
+	}
+	return status[0] == 0, string(msgBuf), nil
+}
+
+// UDPMessage format:
+// Session ID (uint32 BE)
+// Packet ID (uint16 BE)
+// Fragment ID (uint8)
+// Fragment count (uint8)
+// Address length (QUIC varint)
+// Address (bytes)
+// Data...
+
+type UDPMessage struct {
+	SessionID uint32 // 4
+	PacketID  uint16 // 2
+	FragID    uint8  // 1
+	FragCount uint8  // 1
+	Addr      string // varint + bytes
+	Data      []byte
+}
+
+func (m *UDPMessage) HeaderSize() int {
+	lAddr := len(m.Addr)
+	return 4 + 2 + 1 + 1 + int(quicvarint.Len(uint64(lAddr))) + lAddr
+}
+
+func (m *UDPMessage) Size() int {
+	return m.HeaderSize() + len(m.Data)
+}
+
+func (m *UDPMessage) Serialize(buf []byte) int {
+	// Make sure the buffer is big enough
+	if len(buf) < m.Size() {
+		return -1
+	}
+	// binary.BigEndian.PutUint32(buf, m.SessionID)
+	binary.BigEndian.PutUint16(buf[4:], m.PacketID)
+	buf[6] = m.FragID
+	buf[7] = m.FragCount
+	i := varintPut(buf[8:], uint64(len(m.Addr)))
+	i += copy(buf[8+i:], m.Addr)
+	i += copy(buf[8+i:], m.Data)
+	return 8 + i
+}
+
+func ParseUDPMessage(msg []byte) (*UDPMessage, error) {
+	m := &UDPMessage{}
+	buf := bytes.NewBuffer(msg)
+	if err := binary.Read(buf, binary.BigEndian, &m.SessionID); err != nil {
+		return nil, err
+	}
+	if err := binary.Read(buf, binary.BigEndian, &m.PacketID); err != nil {
+		return nil, err
+	}
+	if err := binary.Read(buf, binary.BigEndian, &m.FragID); err != nil {
+		return nil, err
+	}
+	if err := binary.Read(buf, binary.BigEndian, &m.FragCount); err != nil {
+		return nil, err
+	}
+	lAddr, err := quicvarint.Read(buf)
+	if err != nil {
+		return nil, err
+	}
+	if lAddr == 0 || lAddr > MaxMessageLength {
+		return nil, errors.New("invalid address length")
+	}
+	bs := buf.Bytes()
+	if len(bs) <= int(lAddr) {
+		// We use <= instead of < here as we expect at least one byte of data after the address
+		return nil, errors.New("invalid message length")
+	}
+	m.Addr = string(bs[:lAddr])
+	m.Data = bs[lAddr:]
+	return m, nil
+}
+
+// varintPut is like quicvarint.Append, but instead of appending to a slice,
+// it writes to a fixed-size buffer. Returns the number of bytes written.
+func varintPut(b []byte, i uint64) int {
+	if i <= maxVarInt1 {
+		b[0] = uint8(i)
+		return 1
+	}
+	if i <= maxVarInt2 {
+		b[0] = uint8(i>>8) | 0x40
+		b[1] = uint8(i)
+		return 2
+	}
+	if i <= maxVarInt4 {
+		b[0] = uint8(i>>24) | 0x80
+		b[1] = uint8(i >> 16)
+		b[2] = uint8(i >> 8)
+		b[3] = uint8(i)
+		return 4
+	}
+	if i <= maxVarInt8 {
+		b[0] = uint8(i>>56) | 0xc0
+		b[1] = uint8(i >> 48)
+		b[2] = uint8(i >> 40)
+		b[3] = uint8(i >> 32)
+		b[4] = uint8(i >> 24)
+		b[5] = uint8(i >> 16)
+		b[6] = uint8(i >> 8)
+		b[7] = uint8(i)
+		return 8
+	}
+	panic(fmt.Sprintf("%#x doesn't fit into 62 bits", i))
+}

proxy/proxy.go

@@ -248,7 +248,7 @@ func (w *VisionReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
 			*withinPaddingBuffers = false
 			*switchToDirectCopy = true
 		} else {
-			errors.LogInfo(w.ctx, "XtlsRead unknown command ", *currentCommand, buffer.Len())
+			errors.LogDebug(w.ctx, "XtlsRead unknown command ", *currentCommand, buffer.Len())
 		}
 	}
 	if w.trafficState.NumberOfPacketToFilter > 0 {
@@ -269,9 +269,9 @@ func (w *VisionReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
 		w.rawInput = nil
 
 		if inbound := session.InboundFromContext(w.ctx); inbound != nil && inbound.Conn != nil {
-			if w.isUplink && inbound.CanSpliceCopy == 2 {
-				inbound.CanSpliceCopy = 1
-			}
+			// if w.isUplink && inbound.CanSpliceCopy == 2 { // TODO: enable uplink splice
+			// 	inbound.CanSpliceCopy = 1
+			// }
 			if !w.isUplink && w.ob != nil && w.ob.CanSpliceCopy == 2 { // ob need to be passed in due to context can have more than one ob
 				w.ob.CanSpliceCopy = 1
 			}
@@ -296,11 +296,16 @@ type VisionWriter struct {
 	// internal
 	writeOnceUserUUID  []byte
 	directWriteCounter stats.Counter
+
+	testseed []uint32
 }
 
-func NewVisionWriter(writer buf.Writer, trafficState *TrafficState, isUplink bool, ctx context.Context, conn net.Conn, ob *session.Outbound) *VisionWriter {
+func NewVisionWriter(writer buf.Writer, trafficState *TrafficState, isUplink bool, ctx context.Context, conn net.Conn, ob *session.Outbound, testseed []uint32) *VisionWriter {
 	w := make([]byte, len(trafficState.UserUUID))
 	copy(w, trafficState.UserUUID)
+	if len(testseed) < 4 {
+		testseed = []uint32{900, 500, 900, 256}
+	}
 	return &VisionWriter{
 		Writer:            writer,
 		trafficState:      trafficState,
@@ -309,6 +314,7 @@ func NewVisionWriter(writer buf.Writer, trafficState *TrafficState, isUplink boo
 		isUplink:          isUplink,
 		conn:              conn,
 		ob:                ob,
+		testseed:          testseed,
 	}
 }
 
@@ -328,9 +334,9 @@ func (w *VisionWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
 			if !w.isUplink && inbound.CanSpliceCopy == 2 {
 				inbound.CanSpliceCopy = 1
 			}
-			if w.isUplink && w.ob != nil && w.ob.CanSpliceCopy == 2 {
-				w.ob.CanSpliceCopy = 1
-			}
+			// if w.isUplink && w.ob != nil && w.ob.CanSpliceCopy == 2 { // TODO: enable uplink splice
+			// 	w.ob.CanSpliceCopy = 1
+			// }
 		}
 		rawConn, _, writerCounter := UnwrapRawConn(w.conn)
 		w.Writer = buf.NewWriter(rawConn)
@@ -347,13 +353,14 @@ func (w *VisionWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
 
 	if *isPadding {
 		if len(mb) == 1 && mb[0] == nil {
-			mb[0] = XtlsPadding(nil, CommandPaddingContinue, &w.writeOnceUserUUID, true, w.ctx) // we do a long padding to hide vless header
+			mb[0] = XtlsPadding(nil, CommandPaddingContinue, &w.writeOnceUserUUID, true, w.ctx, w.testseed) // we do a long padding to hide vless header
 			return w.Writer.WriteMultiBuffer(mb)
 		}
+		isComplete := IsCompleteRecord(mb)
 		mb = ReshapeMultiBuffer(w.ctx, mb)
 		longPadding := w.trafficState.IsTLS
 		for i, b := range mb {
-			if w.trafficState.IsTLS && b.Len() >= 6 && bytes.Equal(TlsApplicationDataStart, b.BytesTo(3)) {
+			if w.trafficState.IsTLS && b.Len() >= 6 && bytes.Equal(TlsApplicationDataStart, b.BytesTo(3)) && isComplete {
 				if w.trafficState.EnableXtls {
 					*switchToDirectCopy = true
 				}
@@ -364,13 +371,13 @@ func (w *VisionWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
 						command = CommandPaddingDirect
 					}
 				}
-				mb[i] = XtlsPadding(b, command, &w.writeOnceUserUUID, true, w.ctx)
+				mb[i] = XtlsPadding(b, command, &w.writeOnceUserUUID, true, w.ctx, w.testseed)
 				*isPadding = false // padding going to end
 				longPadding = false
 				continue
 			} else if !w.trafficState.IsTLS12orAbove && w.trafficState.NumberOfPacketToFilter <= 1 { // For compatibility with earlier vision receiver, we finish padding 1 packet early
 				*isPadding = false
-				mb[i] = XtlsPadding(b, CommandPaddingEnd, &w.writeOnceUserUUID, longPadding, w.ctx)
+				mb[i] = XtlsPadding(b, CommandPaddingEnd, &w.writeOnceUserUUID, longPadding, w.ctx, w.testseed)
 				break
 			}
 			var command byte = CommandPaddingContinue
@@ -380,12 +387,66 @@ func (w *VisionWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
 					command = CommandPaddingDirect
 				}
 			}
-			mb[i] = XtlsPadding(b, command, &w.writeOnceUserUUID, longPadding, w.ctx)
+			mb[i] = XtlsPadding(b, command, &w.writeOnceUserUUID, longPadding, w.ctx, w.testseed)
 		}
 	}
 	return w.Writer.WriteMultiBuffer(mb)
 }
 
+// IsCompleteRecord Is complete tls data record
+func IsCompleteRecord(buffer buf.MultiBuffer) bool {
+	b := make([]byte, buffer.Len())
+	if buffer.Copy(b) != int(buffer.Len()) {
+		panic("impossible bytes allocation")
+	}
+	var headerLen int = 5
+	var recordLen int
+
+	totalLen := len(b)
+	i := 0
+	for i < totalLen {
+		// record header: 0x17 0x3 0x3 + 2 bytes length
+		if headerLen > 0 {
+			data := b[i]
+			i++
+			switch headerLen {
+			case 5:
+				if data != 0x17 {
+					return false
+				}
+			case 4:
+				if data != 0x03 {
+					return false
+				}
+			case 3:
+				if data != 0x03 {
+					return false
+				}
+			case 2:
+				recordLen = int(data) << 8
+			case 1:
+				recordLen = recordLen | int(data)
+			}
+			headerLen--
+		} else if recordLen > 0 {
+			remaining := totalLen - i
+			if remaining < recordLen {
+				return false
+			} else {
+				i += recordLen
+				recordLen = 0
+				headerLen = 5
+			}
+		} else {
+			return false
+		}
+	}
+	if headerLen == 5 && recordLen == 0 {
+		return true
+	}
+	return false
+}
+
 // ReshapeMultiBuffer prepare multi buffer for padding structure (max 21 bytes)
 func ReshapeMultiBuffer(ctx context.Context, buffer buf.MultiBuffer) buf.MultiBuffer {
 	needReshape := 0
@@ -417,25 +478,25 @@ func ReshapeMultiBuffer(ctx context.Context, buffer buf.MultiBuffer) buf.MultiBu
 		buffer[i] = nil
 	}
 	buffer = buffer[:0]
-	errors.LogInfo(ctx, "ReshapeMultiBuffer ", toPrint)
+	errors.LogDebug(ctx, "ReshapeMultiBuffer ", toPrint)
 	return mb2
 }
 
 // XtlsPadding add padding to eliminate length signature during tls handshake
-func XtlsPadding(b *buf.Buffer, command byte, userUUID *[]byte, longPadding bool, ctx context.Context) *buf.Buffer {
+func XtlsPadding(b *buf.Buffer, command byte, userUUID *[]byte, longPadding bool, ctx context.Context, testseed []uint32) *buf.Buffer {
 	var contentLen int32 = 0
 	var paddingLen int32 = 0
 	if b != nil {
 		contentLen = b.Len()
 	}
-	if contentLen < 900 && longPadding {
-		l, err := rand.Int(rand.Reader, big.NewInt(500))
+	if contentLen < int32(testseed[0]) && longPadding {
+		l, err := rand.Int(rand.Reader, big.NewInt(int64(testseed[1])))
 		if err != nil {
 			errors.LogDebugInner(ctx, err, "failed to generate padding")
 		}
-		paddingLen = int32(l.Int64()) + 900 - contentLen
+		paddingLen = int32(l.Int64()) + int32(testseed[2]) - contentLen
 	} else {
-		l, err := rand.Int(rand.Reader, big.NewInt(256))
+		l, err := rand.Int(rand.Reader, big.NewInt(int64(testseed[3])))
 		if err != nil {
 			errors.LogDebugInner(ctx, err, "failed to generate padding")
 		}
@@ -456,7 +517,7 @@ func XtlsPadding(b *buf.Buffer, command byte, userUUID *[]byte, longPadding bool
 		b = nil
 	}
 	newbuffer.Extend(paddingLen)
-	errors.LogInfo(ctx, "XtlsPadding ", contentLen, " ", paddingLen, " ", command)
+	errors.LogDebug(ctx, "XtlsPadding ", contentLen, " ", paddingLen, " ", command)
 	return newbuffer
 }
 
@@ -503,7 +564,7 @@ func XtlsUnpadding(b *buf.Buffer, s *TrafficState, isUplink bool, ctx context.Co
 				*remainingPadding = int32(data) << 8
 			case 1:
 				*remainingPadding = *remainingPadding | int32(data)
-				errors.LogInfo(ctx, "Xtls Unpadding new block, content ", *remainingContent, " padding ", *remainingPadding, " command ", *currentCommand)
+				errors.LogDebug(ctx, "Xtls Unpadding new block, content ", *remainingContent, " padding ", *remainingPadding, " command ", *currentCommand)
 			}
 			*remainingCommand--
 		} else if *remainingContent > 0 {
@@ -562,11 +623,11 @@ func XtlsFilterTls(buffer buf.MultiBuffer, trafficState *TrafficState, ctx conte
 					cipherSuite := b.BytesRange(43+sessionIdLen+1, 43+sessionIdLen+3)
 					trafficState.Cipher = uint16(cipherSuite[0])<<8 | uint16(cipherSuite[1])
 				} else {
-					errors.LogInfo(ctx, "XtlsFilterTls short server hello, tls 1.2 or older? ", b.Len(), " ", trafficState.RemainingServerHello)
+					errors.LogDebug(ctx, "XtlsFilterTls short server hello, tls 1.2 or older? ", b.Len(), " ", trafficState.RemainingServerHello)
 				}
 			} else if bytes.Equal(TlsClientHandShakeStart, startsBytes[:2]) && startsBytes[5] == TlsHandshakeTypeClientHello {
 				trafficState.IsTLS = true
-				errors.LogInfo(ctx, "XtlsFilterTls found tls client hello! ", buffer.Len())
+				errors.LogDebug(ctx, "XtlsFilterTls found tls client hello! ", buffer.Len())
 			}
 		}
 		if trafficState.RemainingServerHello > 0 {
@@ -582,18 +643,18 @@ func XtlsFilterTls(buffer buf.MultiBuffer, trafficState *TrafficState, ctx conte
 				} else if v != "TLS_AES_128_CCM_8_SHA256" {
 					trafficState.EnableXtls = true
 				}
-				errors.LogInfo(ctx, "XtlsFilterTls found tls 1.3! ", b.Len(), " ", v)
+				errors.LogDebug(ctx, "XtlsFilterTls found tls 1.3! ", b.Len(), " ", v)
 				trafficState.NumberOfPacketToFilter = 0
 				return
 			} else if trafficState.RemainingServerHello <= 0 {
-				errors.LogInfo(ctx, "XtlsFilterTls found tls 1.2! ", b.Len())
+				errors.LogDebug(ctx, "XtlsFilterTls found tls 1.2! ", b.Len())
 				trafficState.NumberOfPacketToFilter = 0
 				return
 			}
-			errors.LogInfo(ctx, "XtlsFilterTls inconclusive server hello ", b.Len(), " ", trafficState.RemainingServerHello)
+			errors.LogDebug(ctx, "XtlsFilterTls inconclusive server hello ", b.Len(), " ", trafficState.RemainingServerHello)
 		}
 		if trafficState.NumberOfPacketToFilter <= 0 {
-			errors.LogInfo(ctx, "XtlsFilterTls stop filtering", buffer.Len())
+			errors.LogDebug(ctx, "XtlsFilterTls stop filtering", buffer.Len())
 		}
 	}
 }
@@ -675,7 +736,7 @@ func CopyRawConnIfExist(ctx context.Context, readerConn net.Conn, writerConn net
 			}
 		}
 		if splice {
-			errors.LogInfo(ctx, "CopyRawConn splice")
+			errors.LogDebug(ctx, "CopyRawConn splice")
 			statWriter, _ := writer.(*dispatcher.SizeStatWriter)
 			//runtime.Gosched() // necessary
 			time.Sleep(time.Millisecond)     // without this, there will be a rare ssl error for freedom splice
@@ -718,7 +779,7 @@ func CopyRawConnIfExist(ctx context.Context, readerConn net.Conn, writerConn net
 }
 
 func readV(ctx context.Context, reader buf.Reader, writer buf.Writer, timer signal.ActivityUpdater, readCounter stats.Counter) error {
-	errors.LogInfo(ctx, "CopyRawConn (maybe) readv")
+	errors.LogDebug(ctx, "CopyRawConn (maybe) readv")
 	if err := buf.Copy(reader, writer, buf.UpdateActivity(timer), buf.AddToStatCounter(readCounter)); err != nil {
 		return errors.New("failed to process response").Base(err)
 	}
@@ -726,10 +787,7 @@ func readV(ctx context.Context, reader buf.Reader, writer buf.Writer, timer sign
 }
 
 func IsRAWTransportWithoutSecurity(conn stat.Connection) bool {
-	iConn := conn
-	if statConn, ok := iConn.(*stat.CounterConnection); ok {
-		iConn = statConn.Connection
-	}
+	iConn := stat.TryUnwrapStatsConn(conn)
 	_, ok1 := iConn.(*proxyproto.Conn)
 	_, ok2 := iConn.(*net.TCPConn)
 	_, ok3 := iConn.(*internet.UnixConnWrapper)

proxy/socks/protocol.go

@@ -353,6 +353,11 @@ func EncodeUDPPacket(request *protocol.RequestHeader, data []byte) (*buf.Buffer,
 		b.Release()
 		return nil, err
 	}
+	// if data is too large, return an empty buffer (drop too big data)
+	if b.Available() < int32(len(data)) {
+		b.Clear()
+		return b, nil
+	}
 	common.Must2(b.Write(data))
 	return b, nil
 }

proxy/trojan/server.go

@@ -147,11 +147,7 @@ func (s *Server) Network() []net.Network {
 
 // Process implements proxy.Inbound.Process().
 func (s *Server) Process(ctx context.Context, network net.Network, conn stat.Connection, dispatcher routing.Dispatcher) error {
-	iConn := conn
-	statConn, ok := iConn.(*stat.CounterConnection)
-	if ok {
-		iConn = statConn.Connection
-	}
+	iConn := stat.TryUnwrapStatsConn(conn)
 
 	sessionPolicy := s.policyManager.ForLevel(0)
 	if err := conn.SetReadDeadline(time.Now().Add(sessionPolicy.Timeouts.Handshake)); err != nil {