Hysteria: Set default h3 alpn

.github/build/windows/xray_no_window.cmd

@@ -1 +0,0 @@
-powershell.exe -ExecutionPolicy Bypass -File ".\xray_no_window.ps1"

.github/build/windows/xray_no_window.ps1

@@ -1 +0,0 @@
-Start-Process -FilePath ".\xray.exe" -ArgumentList "-config .\config.json" -WindowStyle Hidden

.github/build/windows/xray_no_window.vbs

@@ -1 +0,0 @@
-CreateObject("Wscript.Shell").Run "xray.exe -config config.json",0

.github/docker/Dockerfile

@@ -37,7 +37,6 @@ RUN echo '{}' >/tmp/usr/local/etc/xray/08_fakedns.json
 RUN echo '{}' >/tmp/usr/local/etc/xray/09_metrics.json
 RUN echo '{}' >/tmp/usr/local/etc/xray/10_observatory.json
 RUN echo '{}' >/tmp/usr/local/etc/xray/11_geodata.json
-RUN echo '{}' >/tmp/usr/local/etc/xray/12_env.json
 RUN echo '{}' >/tmp/usr/local/etc/xray/99_version.json
 
 # Create log files

.github/docker/Dockerfile.usa

@@ -37,7 +37,6 @@ RUN echo '{}' >/tmp/usr/local/etc/xray/08_fakedns.json
 RUN echo '{}' >/tmp/usr/local/etc/xray/09_metrics.json
 RUN echo '{}' >/tmp/usr/local/etc/xray/10_observatory.json
 RUN echo '{}' >/tmp/usr/local/etc/xray/11_geodata.json
-RUN echo '{}' >/tmp/usr/local/etc/xray/12_env.json
 RUN echo '{}' >/tmp/usr/local/etc/xray/99_version.json
 
 # Create log files

.github/workflows/docker.yml

@@ -64,16 +64,8 @@ jobs:
           echo "Latest: '$LATEST'."
           echo "LATEST=$LATEST" >>${GITHUB_ENV}
 
-          NEWEST=false
-          if [[ "${{ github.event_name }}" == "release" ]]; then
-            NEWEST=true
-          fi
-
-          echo "Newest: '$NEWEST'."
-          echo "NEWEST=$NEWEST" >>${GITHUB_ENV}
-
       - name: Checkout code
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
 
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v4
@@ -82,7 +74,7 @@ jobs:
         uses: docker/setup-buildx-action@v4
 
       - name: Login to GitHub Container Registry
-        uses: docker/login-action@v4.6.0
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
@@ -132,13 +124,6 @@ jobs:
             ${{ env.FULL_IMAGE_NAME }}:${{ env.IMAGE_TAG }}
           fi
 
-          if [[ "${{ env.NEWEST }}" == "true" ]]; then
-            echo "Adding 'pre-release' tag to manifest: '${{ env.FULL_IMAGE_NAME }}:pre-release'."
-            docker buildx imagetools create \
-            --tag ${{ env.FULL_IMAGE_NAME }}:pre-release \
-            ${{ env.FULL_IMAGE_NAME }}:${{ env.IMAGE_TAG }}
-          fi
-
       - name: Inspect image
         run: |
           docker buildx imagetools inspect ${{ env.FULL_IMAGE_NAME }}:${{ env.IMAGE_TAG }}
@@ -146,7 +131,3 @@ jobs:
           if [[ "${{ env.LATEST }}" == "true" ]]; then
             docker buildx imagetools inspect ${{ env.FULL_IMAGE_NAME }}:latest
           fi
-
-          if [[ "${{ env.NEWEST }}" == "true" ]]; then
-            docker buildx imagetools inspect ${{ env.FULL_IMAGE_NAME }}:pre-release
-          fi

.github/workflows/release-win7.yml

@@ -11,16 +11,15 @@ on:
 jobs:
   check-assets:
     runs-on: ubuntu-latest
-    if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
     steps:
       - name: Restore Geodat Cache
-        uses: actions/cache/restore@v6
+        uses: actions/cache/restore@v5
         with:
           path: resources
           key: xray-geodat-
 
       - name: Restore Wintun Cache
-        uses: actions/cache/restore@v6
+        uses: actions/cache/restore@v5
         with:
           path: resources
           key: xray-wintun-
@@ -76,14 +75,13 @@ jobs:
       fail-fast: false
 
     runs-on: ubuntu-latest
-    if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
     env:
       GOOS: ${{ matrix.goos}}
       GOARCH: ${{ matrix.goarch }}
       CGO_ENABLED: 0
     steps:
       - name: Checkout codebase
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
 
       - name: Show workflow information
         run: |
@@ -92,7 +90,7 @@ jobs:
           echo "ASSET_NAME=$_NAME" >> $GITHUB_ENV
 
       - name: Set up Go
-        uses: actions/setup-go@v7
+        uses: actions/setup-go@v6
         with:
           go-version-file: go.mod
           check-latest: true
@@ -119,13 +117,13 @@ jobs:
           # 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@v6
+        uses: actions/cache/restore@v5
         with:
           path: resources
           key: xray-geodat-
 
       - name: Restore Wintun Cache
-        uses: actions/cache/restore@v6
+        uses: actions/cache/restore@v5
         with:
           path: resources
           key: xray-wintun-
@@ -134,17 +132,15 @@ jobs:
         run: |
           mv -f resources/geo* build_assets/
           if [[ ${GOOS} == 'windows' ]]; then
-            cp .github/build/windows/* build_assets/
+            echo 'CreateObject("Wscript.Shell").Run "xray.exe -config config.json",0' > build_assets/xray_no_window.vbs
-          fi
+            echo 'Start-Process -FilePath ".\xray.exe" -ArgumentList "-config .\config.json" -WindowStyle Hidden' > build_assets/xray_no_window.ps1
-          if [[ ${GOOS} == 'windows' ]]; then
-            echo 'Adding Wintun into packages'
             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
+            mv resources/wintun/LICENSE.txt build_assets/LICENSE-wintun.txt
           fi
 
       - name: Copy README.md & LICENSE

.github/workflows/release.yml

@@ -11,16 +11,15 @@ on:
 jobs:
   check-assets:
     runs-on: ubuntu-latest
-    if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
     steps:
       - name: Restore Geodat Cache
-        uses: actions/cache/restore@v6
+        uses: actions/cache/restore@v5
         with:
           path: resources
           key: xray-geodat-
 
       - name: Restore Wintun Cache
-        uses: actions/cache/restore@v6
+        uses: actions/cache/restore@v5
         with:
           path: resources
           key: xray-wintun-
@@ -162,7 +161,6 @@ jobs:
       fail-fast: false
 
     runs-on: ubuntu-latest
-    if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
     env:
       GOOS: ${{ matrix.goos }}
       GOARCH: ${{ matrix.goarch }}
@@ -170,7 +168,7 @@ jobs:
       CGO_ENABLED: 0
     steps:
       - name: Checkout codebase
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
 
       - name: Set up NDK
         if: matrix.goos == 'android'
@@ -193,7 +191,7 @@ jobs:
           echo "ASSET_NAME=$_NAME" >> $GITHUB_ENV
 
       - name: Set up Go
-        uses: actions/setup-go@v7
+        uses: actions/setup-go@v6
         with:
           go-version-file: go.mod
           check-latest: true
@@ -210,9 +208,6 @@ jobs:
             go build -o build_assets/xray.exe -trimpath -buildvcs=false -gcflags="all=-l=4" -ldflags="-X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
             # The line below is for without running conhost.exe version. Commented for not being used. Provided for reference.
             # go build -o build_assets/wxray.exe -trimpath -buildvcs=false -gcflags="all=-l=4" -ldflags="-H windowsgui -X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
-          elif [[ ${GOOS} == 'android' ]]; then
-            echo 'Building Xray for Android...'
-            go build -o build_assets/xray -trimpath -buildvcs=false -gcflags="all=-l=4" -ldflags="-X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid= -checklinkname=0" -v ./main
           else
             echo 'Building Xray...'
             if [[ ${GOARCH} == 'mips' || ${GOARCH} == 'mipsle' ]]; then
@@ -225,14 +220,14 @@ jobs:
           fi
 
       - name: Restore Geodat Cache
-        uses: actions/cache/restore@v6
+        uses: actions/cache/restore@v5
         with:
           path: resources
           key: xray-geodat-
 
       - name: Restore Wintun Cache
         if: matrix.goos == 'windows'
-        uses: actions/cache/restore@v6
+        uses: actions/cache/restore@v5
         with:
           path: resources
           key: xray-wintun-
@@ -241,10 +236,8 @@ jobs:
         run: |
           mv -f resources/geo* build_assets/
           if [[ ${GOOS} == 'windows' ]]; then
-            cp .github/build/windows/* build_assets/
+            echo 'CreateObject("Wscript.Shell").Run "xray.exe -config config.json",0' > build_assets/xray_no_window.vbs
-          fi
+            echo 'Start-Process -FilePath ".\xray.exe" -ArgumentList "-config .\config.json" -WindowStyle Hidden' > build_assets/xray_no_window.ps1
-          if [[ ${GOOS} == 'windows' ]]; then
-            echo 'Adding Wintun into packages'
             if [[ ${GOARCH} == 'amd64' ]]; then
               mv resources/wintun/bin/amd64/wintun.dll build_assets/
             fi
@@ -254,7 +247,7 @@ jobs:
             if [[ ${GOARCH} == 'arm64' ]]; then
               mv resources/wintun/bin/arm64/wintun.dll build_assets/
             fi
-            mv resources/wintun/LICENSE.txt build_assets/LICENSE-Wintun
+            mv resources/wintun/LICENSE.txt build_assets/LICENSE-wintun.txt
           fi
 
       - name: Copy README.md & LICENSE

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

@@ -26,7 +26,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Restore Geodat Cache
-        uses: actions/cache/restore@v6
+        uses: actions/cache/restore@v5
         with:
           path: resources
           key: xray-geodat-
@@ -59,7 +59,7 @@ jobs:
             done
 
       - name: Save Geodat Cache
-        uses: actions/cache/save@v6
+        uses: actions/cache/save@v5
         if: ${{ steps.update.outputs.unhit }}
         with:
           path: resources
@@ -68,12 +68,9 @@ jobs:
   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
-    env:
-      ASSETVER: 0.14.1
-      ASSETHASH: 07c256185d6ee3652e09fa55c0b673e2624b565e02c4b9091c79ca7d2f24ef51
     steps:
       - name: Restore Wintun Cache
-        uses: actions/cache/restore@v6
+        uses: actions/cache/restore@v5
         with:
           path: resources
           key: xray-wintun-
@@ -99,6 +96,7 @@ jobs:
               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 ${ARCHITECTURE} is missing"
                   missing=true
@@ -115,21 +113,16 @@ jobs:
             fi
             if [[ "$missing" == true ]]; then
               FILENAME=wintun.zip
-              DOWNLOAD_FILE=wintun-${ASSETVER}.zip
+              DOWNLOAD_FILE=wintun-0.14.1.zip
               echo -e "Downloading https://www.wintun.net/builds/${DOWNLOAD_FILE}..."
               curl -L "https://www.wintun.net/builds/${DOWNLOAD_FILE}" -o "${FILENAME}"
-              if [[ "$(sha256sum "./${FILENAME}" | awk -F ' ' '{print $1}')" == "${ASSETHASH}" ]]; then
+              echo -e "Unpacking wintun..."
-                echo -e "Unpacking wintun..."
+              unzip -u ${FILENAME} -d resources/
-                unzip -u ${FILENAME} -d resources/
+              echo "unhit=true" >> $GITHUB_OUTPUT
-                echo "unhit=true" >> $GITHUB_OUTPUT
-              else
-                echo -e "Digest of ${FILENAME} mismatch."
-                exit 1
-              fi
             fi
 
       - name: Save Wintun Cache
-        uses: actions/cache/save@v6
+        uses: actions/cache/save@v5
         if: ${{ steps.update.outputs.unhit }}
         with:
           path: resources

.github/workflows/test.yml

@@ -1,4 +1,4 @@
-name: Tests and Checkings
+name: Test
 
 on:
   push:
@@ -8,10 +8,9 @@ on:
 jobs:
   check-assets:
     runs-on: ubuntu-latest
-    if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
     steps:
       - name: Restore Geodat Cache
-        uses: actions/cache/restore@v6
+        uses: actions/cache/restore@v5
         with:
           path: resources
           key: xray-geodat-
@@ -37,10 +36,9 @@ jobs:
 
   check-proto:
     runs-on: ubuntu-latest
-    if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
     steps:
       - name: Checkout codebase
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: Check Proto Version Header
         run: |
           head -n 4 core/config.pb.go > ref.txt
@@ -52,26 +50,8 @@ jobs:
             fi
           done
 
-  check-format:
-    runs-on: ubuntu-latest
-    if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
-    permissions:
-      contents: read
-    steps:
-      - name: Checkout codebase
-        uses: actions/checkout@v7
-      - name: Set up Go
-        uses: actions/setup-go@v7
-        with:
-          go-version-file: go.mod
-          check-latest: true
-          cache: false
-      - name: Check Format
-        run: go run ./infra/vformat/main.go -mode check -pwd ./
-
   test:
     needs: check-assets
-    if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
     permissions:
       contents: read
     runs-on: ${{ matrix.os }}
@@ -81,14 +61,14 @@ jobs:
         os: [windows-latest, ubuntu-latest, macos-latest]
     steps:
       - name: Checkout codebase
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: Set up Go
-        uses: actions/setup-go@v7
+        uses: actions/setup-go@v6
         with:
           go-version-file: go.mod
           check-latest: true
       - name: Restore Geodat Cache
-        uses: actions/cache/restore@v6
+        uses: actions/cache/restore@v5
         with:
           path: resources
           key: xray-geodat-

README.md

@@ -73,7 +73,7 @@
   - [Xray_bash_onekey](https://github.com/hello-yunshu/Xray_bash_onekey), [XTool](https://github.com/LordPenguin666/XTool), [VPainLess](https://github.com/vpainless/vpainless)
   - [v2ray-agent](https://github.com/mack-a/v2ray-agent), [Xray_onekey](https://github.com/wulabing/Xray_onekey), [ProxySU](https://github.com/proxysu/ProxySU)
 - Magisk
-  - [Magic_V2Ray](https://github.com/vincentng295/Magic_V2Ray)
+  - [Xray4Magisk](https://github.com/Asterisk4Magisk/Xray4Magisk)
   - [Xray_For_Magisk](https://github.com/E7KMbb/Xray_For_Magisk)
 - Homebrew
   - `brew install xray`
@@ -120,7 +120,6 @@
   - [XrayFA](https://github.com/Q7DF1/XrayFA)
   - [AnyPortal](https://github.com/AnyPortal/AnyPortal)
   - [OneXray](https://github.com/OneXray/OneXray)
-  - [AsteriskNG](https://github.com/Asterisk4Magisk/AsteriskNG)
 - iOS & macOS arm64 & tvOS
   - [Happ](https://apps.apple.com/app/happ-proxy-utility/id6504287215) | [Happ RU](https://apps.apple.com/ru/app/happ-proxy-utility-plus/id6746188973) | [Happ tvOS](https://apps.apple.com/us/app/happ-proxy-utility-for-tv/id6748297274)
   - [Streisand](https://apps.apple.com/app/streisand/id6450534064)
@@ -146,8 +145,6 @@
   - [v2rayN](https://github.com/2dust/v2rayN)
   - [GenyConnect](https://github.com/genyleap/GenyConnect)
   - [OneXray](https://github.com/OneXray/OneXray)
-- HarmonyOS
-  - [Hey](https://github.com/popsiclelmlm/Hey)
 
 ## Others that support VLESS, XTLS, REALITY, XUDP, PLUX...
 
@@ -165,7 +162,6 @@
   - [xtls-sdk](https://github.com/remnawave/xtls-sdk)
   - [xtlsapi](https://github.com/hiddify/xtlsapi)
   - [AndroidLibXrayLite](https://github.com/2dust/AndroidLibXrayLite)
-  - [flutter_vless](https://github.com/XIIIFOX/flutter_vless)
   - [Xray-core-python](https://github.com/LorenEteval/Xray-core-python)
   - [xray-api](https://github.com/XVGuardian/xray-api)
 - [XrayR](https://github.com/XrayR-project/XrayR)
@@ -187,27 +183,6 @@
 - [Xray-core v1.0.0](https://github.com/XTLS/Xray-core/releases/tag/v1.0.0) was forked from [v2fly-core 9a03cc5](https://github.com/v2fly/v2ray-core/commit/9a03cc5c98d04cc28320fcee26dbc236b3291256), and we have made & accumulated a huge number of enhancements over time, check [the release notes for each version](https://github.com/XTLS/Xray-core/releases).
 - For third-party projects used in [Xray-core](https://github.com/XTLS/Xray-core), check your local or [the latest go.mod](https://github.com/XTLS/Xray-core/blob/main/go.mod).
 
-### Bundled Third-Party Components Redistribution
-
-**Certain optional features dynamically load third-party components. These optional components are separate works distributed under their own licenses, and are bundled into the ZIP package for ease of use. Users may replace these components under the licenses from these components.**
-
-These components include:
-
-#### Wintun
-
-This distribution contains unmodified official precompiled and pre-signed Wintun binaries.
-
-- Project: Wintun
-- Copyright: Copyright (C) 2018-2021 WireGuard LLC. All Rights Reserved.
-- Redistribution License: Prebuilt Binaries License (PBL) bundled with official precompiled and pre-signed binaries from wintun.net
-- Component(s): wintun.dll
-- Source: https://www.wintun.net/
-- Included in:
-  - Windows x86 (windows-32, win7-32)
-  - Windows x86-64 (windows-64, win7-64)
-  - Windows AArch64 (windows-arm64)
-- Notes: Wintun is an optional runtime-loaded component only used for TUN inbound functionality on supported Windows platforms.
-
 ## One-line Compilation
 
 ### Windows (PowerShell)
@@ -231,13 +206,6 @@ Make sure that you are using the same Go version, and remember to set the git co
 CGO_ENABLED=0 go build -o xray -trimpath -buildvcs=false -gcflags="all=-l=4" -ldflags="-X github.com/xtls/xray-core/core.build=REPLACE -s -w -buildid=" -v ./main
 ```
 
-For Android:
-
-```bash
-GOOS=android GOARCH=arm64 CGO_ENABLED=1 CC=/path/to/aarch64-linux-android24-clang go build -o xray -trimpath -buildvcs=false -gcflags="all=-l=4" -ldflags="-X github.com/xtls/xray-core/core.build=REPLACE -s -w -buildid= -checklinkname=0" -v ./main
-GOOS=android GOARCH=amd64 CGO_ENABLED=1 CC=/path/to/x86_64-linux-android24-clang go build -o xray -trimpath -buildvcs=false -gcflags="all=-l=4" -ldflags="-X github.com/xtls/xray-core/core.build=REPLACE -s -w -buildid= -checklinkname=0" -v ./main
-```
-
 If you are compiling a 32-bit MIPS/MIPSLE target, use this command instead:
 
 ```bash

app/commander/commander.go

@@ -3,15 +3,15 @@ package commander
 import (
 	"context"
 	"net"
-	"strings"
 	"sync"
+    "strings"
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/signal/done"
 	core "github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/outbound"
-	"github.com/xtls/xray-core/transport/internet"
+    "github.com/xtls/xray-core/transport/internet"
 	"google.golang.org/grpc"
 )
 
@@ -69,15 +69,16 @@ func (c *Commander) Start() error {
 	}
 	c.Unlock()
 
-	listen := func(listener net.Listener) {
+	var listen = func(listener net.Listener) {
 		if err := c.server.Serve(listener); err != nil {
 			errors.LogErrorInner(context.Background(), err, "failed to start grpc server")
 		}
 	}
 
+
 	if len(c.listen) > 0 {
 		var addr net.Addr
-
+		
 		if strings.HasPrefix(c.listen, "/") || strings.HasPrefix(c.listen, "@") {
 			addr = &net.UnixAddr{Name: c.listen, Net: "unix"}
 		} else {
@@ -88,7 +89,7 @@ func (c *Commander) Start() error {
 			}
 			addr = tcpAddr
 		}
-		l, err := internet.ListenSystem(context.Background(), addr, nil)
+        l, err := internet.ListenSystem(context.Background(), addr, nil)
 		if err != nil {
 			errors.LogErrorInner(context.Background(), err, "API server failed to listen on ", c.listen)
 			return err

app/dispatcher/default.go

@@ -162,7 +162,7 @@ func (d *DefaultDispatcher) getLink(ctx context.Context) (*transport.Link, *tran
 		p := d.policy.ForLevel(user.Level)
 		if p.Stats.UserUplink {
 			name := "user>>>" + user.Email + ">>>traffic>>>uplink"
-			if c, _ := d.stats.GetOrRegisterCounter(name); c != nil {
+			if c, _ := stats.GetOrRegisterCounter(d.stats, name); c != nil {
 				inboundLink.Writer = &SizeStatWriter{
 					Counter: c,
 					Writer:  inboundLink.Writer,
@@ -171,7 +171,7 @@ func (d *DefaultDispatcher) getLink(ctx context.Context) (*transport.Link, *tran
 		}
 		if p.Stats.UserDownlink {
 			name := "user>>>" + user.Email + ">>>traffic>>>downlink"
-			if c, _ := d.stats.GetOrRegisterCounter(name); c != nil {
+			if c, _ := stats.GetOrRegisterCounter(d.stats, name); c != nil {
 				outboundLink.Writer = &SizeStatWriter{
 					Counter: c,
 					Writer:  outboundLink.Writer,
@@ -200,13 +200,13 @@ func WrapLink(ctx context.Context, policyManager policy.Manager, statsManager st
 		p := policyManager.ForLevel(user.Level)
 		if p.Stats.UserUplink {
 			name := "user>>>" + user.Email + ">>>traffic>>>uplink"
-			if c, _ := statsManager.GetOrRegisterCounter(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, _ := statsManager.GetOrRegisterCounter(name); c != nil {
+			if c, _ := stats.GetOrRegisterCounter(statsManager, name); c != nil {
 				link.Writer = &SizeStatWriter{
 					Counter: c,
 					Writer:  link.Writer,
@@ -223,7 +223,7 @@ func WrapLink(ctx context.Context, policyManager policy.Manager, statsManager st
 
 func trackOnlineIP(ctx context.Context, sm stats.Manager, email, ip string) {
 	name := "user>>>" + email + ">>>online"
-	if om, _ := sm.GetOrRegisterOnlineMap(name); om != nil {
+	if om, _ := stats.GetOrRegisterOnlineMap(sm, name); om != nil {
 		om.AddIP(ip)
 		context.AfterFunc(ctx, func() { om.RemoveIP(ip) })
 	}
@@ -470,9 +470,6 @@ func (d *DefaultDispatcher) routedDispatch(ctx context.Context, link *transport.
 				return // DO NOT CHANGE: the traffic shouldn't be processed by default outbound if the specified outbound tag doesn't exist (yet), e.g., VLESS Reverse Proxy
 			}
 		} else {
-			if err != common.ErrNoClue {
-				errors.LogErrorInner(ctx, err, "failed to pick route for ", destination)
-			}
 			errors.LogInfo(ctx, "default route for ", destination)
 		}
 	}

app/dispatcher/fakednssniffer.go

@@ -23,7 +23,7 @@ func newFakeDNSSniffer(ctx context.Context) (protocolSnifferWithMetadata, error)
 	}
 
 	if fakeDNSEngine == nil {
-		errNotInit := errors.New("FakeDNSEngine is not initialized, but such a sniffer is used")
+		errNotInit := errors.New("FakeDNSEngine is not initialized, but such a sniffer is used").AtError()
 		return protocolSnifferWithMetadata{}, errNotInit
 	}
 	return protocolSnifferWithMetadata{protocolSniffer: func(ctx context.Context, bytes []byte) (SniffResult, error) {

app/dns/cache_controller.go

@@ -139,8 +139,7 @@ func (c *CacheController) writeAndShrink(expiredKeys []string) {
 
 	if lenAfter == 0 {
 		if c.highWatermark >= minSizeForEmptyRebuild {
-			errors.LogDebug(
+			errors.LogDebug(context.Background(), c.name,
-				context.Background(), c.name,
 				" rebuilding empty cache map to reclaim memory.",
 				" size_before_cleanup=", lenBefore,
 				" peak_size_before_rebuild=", c.highWatermark,
@@ -154,8 +153,7 @@ func (c *CacheController) writeAndShrink(expiredKeys []string) {
 
 	if reductionFromPeak := c.highWatermark - lenAfter; reductionFromPeak > shrinkAbsoluteThreshold &&
 		float64(reductionFromPeak) > float64(c.highWatermark)*shrinkRatioThreshold {
-		errors.LogDebug(
+		errors.LogDebug(context.Background(), c.name,
-			context.Background(), c.name,
 			" shrinking cache map to reclaim memory.",
 			" new_size=", lenAfter,
 			" peak_size_before_shrink=", c.highWatermark,
@@ -167,6 +165,7 @@ func (c *CacheController) writeAndShrink(expiredKeys []string) {
 		c.highWatermark = lenAfter
 		go c.migrate()
 	}
+
 }
 
 type migrationEntry struct {

app/dns/config.go

@@ -28,7 +28,7 @@ func toNetIP(addrs []net.Address) ([]net.IP, error) {
 		if addr.Family().IsIP() {
 			ips = append(ips, addr.IP())
 		} else {
-			return nil, errors.New("Failed to convert address", addr, "to Net IP.")
+			return nil, errors.New("Failed to convert address", addr, "to Net IP.").AtWarning()
 		}
 	}
 	return ips, nil

app/dns/config.pb.go

@@ -93,7 +93,6 @@ type NameServer struct {
 	UnexpectedIp    []*geodata.IPRule      `protobuf:"bytes,13,rep,name=unexpected_ip,json=unexpectedIp,proto3" json:"unexpected_ip,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"`
-	Id              string                 `protobuf:"bytes,18,opt,name=id,proto3" json:"id,omitempty"`
 	unknownFields   protoimpl.UnknownFields
 	sizeCache       protoimpl.SizeCache
 }
@@ -240,13 +239,6 @@ func (x *NameServer) GetPolicyID() uint32 {
 	return 0
 }
 
-func (x *NameServer) GetId() string {
-	if x != nil {
-		return x.Id
-	}
-	return ""
-}
-
 type Config struct {
 	state protoimpl.MessageState `protogen:"open.v1"`
 	// NameServer list used by this DNS client.
@@ -266,10 +258,8 @@ type Config struct {
 	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"`
-	// Absolute path to the Lua DNS query script.
+	unknownFields          protoimpl.UnknownFields
-	Script        string `protobuf:"bytes,15,opt,name=script,proto3" json:"script,omitempty"`
+	sizeCache              protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-	sizeCache     protoimpl.SizeCache
 }
 
 func (x *Config) Reset() {
@@ -379,13 +369,6 @@ func (x *Config) GetEnableParallelQuery() bool {
 	return false
 }
 
-func (x *Config) GetScript() string {
-	if x != nil {
-		return x.Script
-	}
-	return ""
-}
-
 type Config_HostMapping struct {
 	state  protoimpl.MessageState `protogen:"open.v1"`
 	Domain *geodata.DomainRule    `protobuf:"bytes,2,opt,name=domain,proto3" json:"domain,omitempty"`
@@ -452,7 +435,7 @@ var File_app_dns_config_proto protoreflect.FileDescriptor
 
 const file_app_dns_config_proto_rawDesc = "" +
 	"\n" +
-	"\x14app/dns/config.proto\x12\fxray.app.dns\x1a\x1ccommon/net/destination.proto\x1a\x1bcommon/geodata/geodat.proto\"\xee\x05\n" +
+	"\x14app/dns/config.proto\x12\fxray.app.dns\x1a\x1ccommon/net/destination.proto\x1a\x1bcommon/geodata/geodat.proto\"\xde\x05\n" +
 	"\n" +
 	"NameServer\x123\n" +
 	"\aaddress\x18\x01 \x01(\v2\x19.xray.common.net.EndpointR\aaddress\x12\x1b\n" +
@@ -478,11 +461,10 @@ const file_app_dns_config_proto_rawDesc = "" +
 	"\n" +
 	"actUnprior\x18\x0e \x01(\bR\n" +
 	"actUnprior\x12\x1a\n" +
-	"\bpolicyID\x18\x11 \x01(\rR\bpolicyID\x12\x0e\n" +
+	"\bpolicyID\x18\x11 \x01(\rR\bpolicyIDB\x0f\n" +
-	"\x02id\x18\x12 \x01(\tR\x02idB\x0f\n" +
 	"\r_disableCacheB\r\n" +
 	"\v_serveStaleB\x12\n" +
-	"\x10_serveExpiredTTLJ\x04\b\x04\x10\x05\"\x9a\x05\n" +
+	"\x10_serveExpiredTTLJ\x04\b\x04\x10\x05\"\x82\x05\n" +
 	"\x06Config\x129\n" +
 	"\vname_server\x18\x05 \x03(\v2\x18.xray.app.dns.NameServerR\n" +
 	"nameServer\x12\x1b\n" +
@@ -498,8 +480,7 @@ const file_app_dns_config_proto_rawDesc = "" +
 	"\x0fdisableFallback\x18\n" +
 	" \x01(\bR\x0fdisableFallback\x126\n" +
 	"\x16disableFallbackIfMatch\x18\v \x01(\bR\x16disableFallbackIfMatch\x120\n" +
-	"\x13enableParallelQuery\x18\x0e \x01(\bR\x13enableParallelQuery\x12\x16\n" +
+	"\x13enableParallelQuery\x18\x0e \x01(\bR\x13enableParallelQuery\x1a}\n" +
-	"\x06script\x18\x0f \x01(\tR\x06script\x1a}\n" +
 	"\vHostMapping\x127\n" +
 	"\x06domain\x18\x02 \x01(\v2\x1f.xray.common.geodata.DomainRuleR\x06domain\x12\x0e\n" +
 	"\x02ip\x18\x03 \x03(\fR\x02ip\x12%\n" +

app/dns/config.proto

@@ -27,7 +27,6 @@ message NameServer {
   repeated xray.common.geodata.IPRule unexpected_ip = 13;
   bool actUnprior = 14;
   uint32 policyID = 17;
-  string id = 18;
 }
 
 enum QueryStrategy {
@@ -74,7 +73,4 @@ message Config {
   bool disableFallbackIfMatch = 11;
 
   bool enableParallelQuery = 14;
-
-  // Absolute path to the Lua DNS query script.
-  string script = 15;
 }

app/dns/dns.go

@@ -31,8 +31,6 @@ type DNS struct {
 	domainMatcher          geodata.DomainMatcher
 	matcherInfos           []*DomainMatcherInfo
 	checkSystem            bool
-	script                 *scriptEngine
-	scriptPath             string
 }
 
 // DomainMatcherInfo contains information attached to index returned by Server.domainMatcher.
@@ -88,7 +86,7 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 		return nil, errors.New("failed to create hosts").Base(err)
 	}
 
-	defaultTag := config.Tag
+	var defaultTag = config.Tag
 	if len(config.Tag) == 0 {
 		defaultTag = generateRandomTag()
 	}
@@ -141,7 +139,7 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 			serveExpiredTTL = *ns.ServeExpiredTTL
 		}
 
-		tag := defaultTag
+		var tag = defaultTag
 		if len(ns.Tag) > 0 {
 			tag = ns.Tag
 		}
@@ -182,7 +180,6 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 		disableFallbackIfMatch: config.DisableFallbackIfMatch,
 		enableParallelQuery:    config.EnableParallelQuery,
 		checkSystem:            checkSystem,
-		scriptPath:             config.Script,
 	}, nil
 }
 
@@ -193,21 +190,11 @@ func (*DNS) Type() interface{} {
 
 // Start implements common.Runnable.
 func (s *DNS) Start() error {
-	if s.scriptPath != "" {
-		engine, err := newScriptEngine(s.scriptPath, s)
-		if err != nil {
-			return errors.New("failed to initialize DNS script").Base(err)
-		}
-		s.script = engine
-	}
 	return nil
 }
 
 // Close implements common.Closable.
 func (s *DNS) Close() error {
-	if s.script != nil {
-		s.script.close()
-	}
 	return nil
 }
 
@@ -225,28 +212,6 @@ func (s *DNS) IsOwnLink(ctx context.Context) bool {
 	return false
 }
 
-// MayUseSystemResolver reports whether any name server configured here could
-// still resolve through the system resolver. That is what happens when no name
-// server is configured at all, and it is also what a name server pointed at
-// "localhost" does. Callers that are about to redirect the system resolver need
-// to know, because a resolution path that reaches it would then loop back to
-// them.
-//
-// Any such server is enough: name servers can be selected per domain, so a
-// single local one makes some query reach the system resolver even when
-// independent upstreams are configured alongside it.
-func (s *DNS) MayUseSystemResolver() bool {
-	if len(s.clients) == 0 {
-		return true
-	}
-	for _, client := range s.clients {
-		if _, isLocal := client.server.(*LocalNameServer); isLocal {
-			return true
-		}
-	}
-	return false
-}
-
 // LookupIP implements dns.Client.
 func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, uint32, error) {
 	// Normalize the FQDN form query
@@ -292,9 +257,6 @@ func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, uint32, er
 	}
 
 	// Name servers lookup
-	if s.script != nil {
-		return s.script.query(domain, option)
-	}
 	if s.enableParallelQuery {
 		return s.parallelQuery(domain, option)
 	} else {

app/dns/dns_internal_test.go

@@ -1,59 +0,0 @@
-package dns
-
-import (
-	"context"
-	"testing"
-
-	"github.com/xtls/xray-core/common/net"
-	feature_dns "github.com/xtls/xray-core/features/dns"
-)
-
-// fakeServer stands in for any name server that is not the system resolver.
-type fakeServer struct{}
-
-func (fakeServer) Name() string         { return "fake" }
-func (fakeServer) IsDisableCache() bool { return false }
-func (fakeServer) QueryIP(context.Context, string, feature_dns.IPOption) ([]net.IP, uint32, error) {
-	return nil, 0, nil
-}
-
-// Callers that are about to redirect the system resolver rely on this to tell
-// whether any resolution path could still reach the system resolver, so the
-// mixed shape has to be reported as reachable: a domain-specific rule can
-// select the system resolver even when an independent upstream also exists.
-func TestMayUseSystemResolver(t *testing.T) {
-	tests := []struct {
-		name    string
-		clients []*Client
-		want    bool
-	}{
-		{
-			name: "no clients at all",
-			want: true,
-		},
-		{
-			name:    "only the system resolver",
-			clients: []*Client{{server: NewLocalNameServer()}},
-			want:    true,
-		},
-		{
-			name:    "the system resolver alongside an independent name server",
-			clients: []*Client{{server: fakeServer{}}, {server: NewLocalNameServer()}},
-			want:    true,
-		},
-		{
-			name:    "only independent name servers",
-			clients: []*Client{{server: fakeServer{}}},
-			want:    false,
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			server := &DNS{clients: tt.clients}
-			if got := server.MayUseSystemResolver(); got != tt.want {
-				t.Errorf("MayUseSystemResolver() = %v, want %v", got, tt.want)
-			}
-		})
-	}
-}

app/dns/dnscommon.go

@@ -127,20 +127,15 @@ func genEDNS0Options(clientIP net.IP, padding int) *dnsmessage.Resource {
 	return opt
 }
 
-func buildReqMsgs(domain string, option dns_feature.IPOption, reqIDGen func() uint16, reqOpts *dnsmessage.Resource) ([]*dnsRequest, error) {
+func buildReqMsgs(domain string, option dns_feature.IPOption, reqIDGen func() uint16, reqOpts *dnsmessage.Resource) []*dnsRequest {
-	name, err := dnsmessage.NewName(domain)
-	if err != nil {
-		return nil, err
-	}
-
 	qA := dnsmessage.Question{
-		Name:  name,
+		Name:  dnsmessage.MustNewName(domain),
 		Type:  dnsmessage.TypeA,
 		Class: dnsmessage.ClassINET,
 	}
 
 	qAAAA := dnsmessage.Question{
-		Name:  name,
+		Name:  dnsmessage.MustNewName(domain),
 		Type:  dnsmessage.TypeAAAA,
 		Class: dnsmessage.ClassINET,
 	}
@@ -180,7 +175,7 @@ func buildReqMsgs(domain string, option dns_feature.IPOption, reqIDGen func() ui
 		})
 	}
 
-	return reqs, nil
+	return reqs
 }
 
 // parseResponse parses DNS answers from the returned payload
@@ -188,24 +183,19 @@ func parseResponse(payload []byte) (*IPRecord, error) {
 	var parser dnsmessage.Parser
 	h, err := parser.Start(payload)
 	if err != nil {
-		return nil, errors.New("failed to parse DNS response").Base(err)
+		return nil, errors.New("failed to parse DNS response").Base(err).AtWarning()
 	}
 	if err := parser.SkipAllQuestions(); err != nil {
-		return nil, errors.New("failed to skip questions in DNS response").Base(err)
+		return nil, errors.New("failed to skip questions in DNS response").Base(err).AtWarning()
 	}
 
 	now := time.Now()
 	ipRecord := &IPRecord{
 		ReqID:     h.ID,
 		RCode:     h.RCode,
+		Expire:    now.Add(time.Second * dns_feature.DefaultTTL),
 		RawHeader: &h,
 	}
-	defer func() {
-		// set to default TTL if no valid TTL is found
-		if ipRecord.Expire.IsZero() {
-			ipRecord.Expire = now.Add(time.Second * dns_feature.DefaultTTL)
-		}
-	}()
 
 L:
 	for {
@@ -222,7 +212,7 @@ L:
 			ttl = 1
 		}
 		expire := now.Add(time.Duration(ttl) * time.Second)
-		if ipRecord.Expire.IsZero() || ipRecord.Expire.After(expire) {
+		if ipRecord.Expire.After(expire) {
 			ipRecord.Expire = expire
 		}
 

app/dns/dnscommon_test.go

@@ -2,7 +2,6 @@ package dns
 
 import (
 	"math/rand"
-	"strings"
 	"testing"
 	"time"
 
@@ -25,8 +24,7 @@ func Test_parseResponse(t *testing.T) {
 
 	ans = new(dns.Msg)
 	ans.Id = 1
-	ans.Answer = append(
+	ans.Answer = append(ans.Answer,
-		ans.Answer,
 		common.Must2(dns.NewRR("google.com. IN CNAME m.test.google.com")),
 		common.Must2(dns.NewRR("google.com. IN CNAME fake.google.com")),
 		common.Must2(dns.NewRR("google.com. IN A 8.8.8.8")),
@@ -36,8 +34,7 @@ func Test_parseResponse(t *testing.T) {
 
 	ans = new(dns.Msg)
 	ans.Id = 2
-	ans.Answer = append(
+	ans.Answer = append(ans.Answer,
-		ans.Answer,
 		common.Must2(dns.NewRR("google.com. IN CNAME m.test.google.com")),
 		common.Must2(dns.NewRR("google.com. IN CNAME fake.google.com")),
 		common.Must2(dns.NewRR("google.com. IN CNAME m.test.google.com")),
@@ -134,15 +131,10 @@ func Test_buildReqMsgs(t *testing.T) {
 			IPv6Enable: false,
 			FakeEnable: false,
 		}, nil}, 0},
-		{"name too long", args{strings.Repeat("a", 256), dns_feature.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		}, nil}, 0},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			if got, _ := buildReqMsgs(tt.args.domain, tt.args.option, stubID, tt.args.reqOpts); !(len(got) == tt.want) {
+			if got := buildReqMsgs(tt.args.domain, tt.args.option, stubID, tt.args.reqOpts); !(len(got) == tt.want) {
 				t.Errorf("buildReqMsgs() = %v, want %v", got, tt.want)
 			}
 		})

app/dns/fakedns/fake.go

@@ -58,7 +58,7 @@ func NewFakeDNSHolder() (*Holder, error) {
 	var err error
 
 	if fkdns, err = NewFakeDNSHolderConfigOnly(nil); err != nil {
-		return nil, errors.New("Unable to create Fake Dns Engine").Base(err)
+		return nil, errors.New("Unable to create Fake Dns Engine").Base(err).AtError()
 	}
 	err = fkdns.initialize(dns.FakeIPv4Pool, 65535)
 	if err != nil {
@@ -80,13 +80,13 @@ func (fkdns *Holder) initialize(ipPoolCidr string, lruSize int) error {
 	var err error
 
 	if _, ipRange, err = net.ParseCIDR(ipPoolCidr); err != nil {
-		return errors.New("Unable to parse CIDR for Fake DNS IP assignment").Base(err)
+		return errors.New("Unable to parse CIDR for Fake DNS IP assignment").Base(err).AtError()
 	}
 
 	ones, bits := ipRange.Mask.Size()
 	rooms := bits - ones
 	if math.Log2(float64(lruSize)) >= float64(rooms) {
-		return errors.New("LRU size is bigger than subnet size")
+		return errors.New("LRU size is bigger than subnet size").AtError()
 	}
 	fkdns.domainToIP = cache.NewLru(lruSize)
 	fkdns.ipRange = ipRange

app/dns/fakedns/fakedns_test.go

@@ -129,16 +129,15 @@ func TestFakeDnsHolderCreateMappingAndRollOver(t *testing.T) {
 }
 
 func TestFakeDNSMulti(t *testing.T) {
-	fakeMulti, err := NewFakeDNSHolderMulti(
+	fakeMulti, err := NewFakeDNSHolderMulti(&FakeDnsPoolMulti{
-		&FakeDnsPoolMulti{
+		Pools: []*FakeDnsPool{{
-			Pools: []*FakeDnsPool{{
+			IpPool:  "240.0.0.0/12",
-				IpPool:  "240.0.0.0/12",
+			LruSize: 256,
-				LruSize: 256,
+		}, {
-			}, {
+			IpPool:  "fddd:c5b4:ff5f:f4f0::/64",
-				IpPool:  "fddd:c5b4:ff5f:f4f0::/64",
+			LruSize: 256,
-				LruSize: 256,
+		}},
-			}},
+	},
-		},
 	)
 	common.Must(err)
 

app/dns/lua.go

@@ -1,165 +0,0 @@
-package dns
-
-import (
-	"context"
-	"strings"
-
-	"github.com/xtls/xray-core/common/errors"
-	xlua "github.com/xtls/xray-core/common/lua"
-	"github.com/xtls/xray-core/common/net"
-	featureDNS "github.com/xtls/xray-core/features/dns"
-	"github.com/xtls/xray-core/features/dns/localdns"
-	lua "github.com/yuin/gopher-lua"
-)
-
-// luaDNSServer adapts configured and local DNS to the same Lua API.
-type luaDNSServer struct {
-	id    string
-	name  string
-	query func(context.Context, string, featureDNS.IPOption) ([]net.IP, uint32, error)
-}
-
-// RegisterLua makes xray.dns available to scripts backed by client.
-func RegisterLua(L *lua.LState, client featureDNS.Client) {
-	var servers []luaDNSServer
-	switch client := client.(type) {
-	case *DNS:
-		servers = luaServers(client)
-	case *localdns.Client:
-		servers = []luaDNSServer{{
-			id:   "localhost",
-			name: "localhost",
-			query: func(_ context.Context, domain string, option featureDNS.IPOption) ([]net.IP, uint32, error) {
-				return client.LookupIP(domain, option)
-			},
-		}}
-	}
-	registerLua(L, servers, client)
-}
-
-// registerLua makes xray.dns available to DNS scripts.
-func (s *DNS) registerLua(L *lua.LState) {
-	registerLua(L, luaServers(s), nil)
-}
-
-func luaServers(s *DNS) []luaDNSServer {
-	servers := make([]luaDNSServer, len(s.clients))
-	for i, client := range s.clients {
-		servers[i] = luaDNSServer{id: client.id, name: client.Name(), query: client.QueryIP}
-	}
-	return servers
-}
-
-func registerLua(L *lua.LState, servers []luaDNSServer, client featureDNS.Client) {
-	L.PreloadModule("xray.dns", func(L *lua.LState) int {
-		serverList := L.NewTable()
-		for i, client := range servers {
-			server := L.NewTable()
-
-			server.RawSetString("ID", lua.LString(client.id))
-
-			server.RawSetString("Query", L.NewFunction(func(L *lua.LState) int {
-				domain, ok := L.Get(2).(lua.LString)
-				if !ok {
-					L.RaiseError("server:Query requires a domain")
-					return 0
-				}
-				option := featureDNS.IPOption{
-					IPv4Enable: L.CheckBool(3),
-					IPv6Enable: L.CheckBool(4),
-					FakeEnable: L.CheckBool(5),
-				}
-				ctx := L.Context()
-				if ctx == nil {
-					L.RaiseError("server:Query requires an active DNS query")
-					return 0
-				}
-				var ips []net.IP
-				var ttl uint32
-				var err error
-				if !option.FakeEnable && strings.EqualFold(client.name, "FakeDNS") {
-					err = featureDNS.ErrEmptyResponse
-				} else {
-					ips, ttl, err = client.query(ctx, string(domain), option)
-				}
-				xlua.PushUserData(L, ips)
-				xlua.PushNumber(L, ttl)
-				xlua.PushError(L, err)
-				return 3
-			}))
-			serverList.RawSetInt(i+1, server)
-		}
-
-		module := L.NewTable()
-		if servers != nil {
-			module.RawSetString("Servers", serverList)
-		}
-		if client != nil {
-			module.RawSetString("Query", newLuaClientQuery(L, client))
-		}
-		L.Push(module)
-		return 1
-	})
-}
-
-func newLuaClientQuery(L *lua.LState, client featureDNS.Client) *lua.LFunction {
-	return L.NewFunction(func(L *lua.LState) int {
-		domain, ok := L.Get(1).(lua.LString)
-		if !ok {
-			L.RaiseError("dns.Query requires a domain")
-			return 0
-		}
-		option := featureDNS.IPOption{
-			IPv4Enable: L.CheckBool(2),
-			IPv6Enable: L.CheckBool(3),
-			FakeEnable: L.CheckBool(4),
-		}
-		if L.Context() == nil {
-			L.RaiseError("dns.Query requires an active DNS query")
-			return 0
-		}
-		ips, ttl, err := client.LookupIP(string(domain), option)
-		xlua.PushUserData(L, ips)
-		xlua.PushNumber(L, ttl)
-		xlua.PushError(L, err)
-		return 3
-	})
-}
-
-// callLuaHook invokes HandleDNSQuery in the supplied state.
-// Returned slices and IP bytes may share storage with DNS caches or matcher inputs.
-func (s *DNS) callLuaHook(L *lua.LState, domain string, option featureDNS.IPOption) ([]net.IP, uint32, error) {
-	top := L.GetTop()
-	defer L.SetTop(top)
-	fn := L.GetGlobal("HandleDNSQuery")
-	if fn.Type() != lua.LTFunction {
-		return nil, 0, errors.New("DNS script must define HandleDNSQuery(...)")
-	}
-	if err := L.CallByParam(lua.P{Fn: fn, NRet: 3, Protect: true},
-		lua.LString(strings.ToLower(domain)), lua.LBool(option.IPv4Enable),
-		lua.LBool(option.IPv6Enable), lua.LBool(option.FakeEnable)); err != nil {
-		return nil, 0, err
-	}
-	return readLuaDNSResult(L.Get(-3), L.Get(-2), L.Get(-1))
-}
-
-func readLuaDNSResult(addresses, ttlValue, errorValue lua.LValue) ([]net.IP, uint32, error) {
-	if err := xlua.ReadError(errorValue, "DNS script error must be an error or string"); err != nil {
-		return nil, 0, err
-	}
-	ttl, err := xlua.ReadUint32(ttlValue, "DNS script returned invalid TTL")
-	if err != nil {
-		return nil, 0, err
-	}
-	if addresses == lua.LNil {
-		return nil, 0, featureDNS.ErrEmptyResponse
-	}
-	ips, err := xlua.ReadUserData[[]net.IP](addresses, "DNS script IPs must be native IP slice userdata")
-	if err != nil {
-		return nil, 0, err
-	}
-	if len(ips) == 0 {
-		return nil, 0, featureDNS.ErrEmptyResponse
-	}
-	return ips, ttl, nil
-}

app/dns/lua_test.go

@@ -1,294 +0,0 @@
-package dns
-
-import (
-	"context"
-	go_errors "errors"
-	"math"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/xtls/xray-core/common/geodata"
-	"github.com/xtls/xray-core/common/net"
-	featureDNS "github.com/xtls/xray-core/features/dns"
-	"github.com/xtls/xray-core/features/dns/localdns"
-	lua "github.com/yuin/gopher-lua"
-)
-
-func TestReadLuaDNSResult(t *testing.T) {
-	L := lua.NewState()
-	defer L.Close()
-	want := []net.IP{net.ParseIP("8.8.8.8"), {127, 0, 0, 1}, net.ParseIP("::1")}
-	addresses := L.NewUserData()
-	addresses.Value = want
-	ips, ttl, err := readLuaDNSResult(addresses, lua.LNumber(45), lua.LNil)
-	if err != nil || ttl != 45 || len(ips) != len(want) {
-		t.Fatalf("readLuaDNSResult() = %v, TTL %d, %v", ips, ttl, err)
-	}
-	for i := range want {
-		if !ips[i].Equal(want[i]) {
-			t.Fatalf("IP %d = %v, want %v", i, ips[i], want[i])
-		}
-	}
-}
-
-func TestReadLuaDNSResultValidation(t *testing.T) {
-	L := lua.NewState()
-	defer L.Close()
-
-	for _, tc := range []struct {
-		name   string
-		change func(*[3]lua.LValue)
-		want   string
-	}{
-		{"fractional TTL", func(v *[3]lua.LValue) { v[1] = lua.LNumber(1.5) }, "invalid TTL"},
-		{"oversized TTL", func(v *[3]lua.LValue) { v[1] = lua.LNumber(4294967296) }, "invalid TTL"},
-		{"negative TTL", func(v *[3]lua.LValue) { v[1] = lua.LNumber(-1) }, "invalid TTL"},
-		{"NaN TTL", func(v *[3]lua.LValue) { v[1] = lua.LNumber(math.NaN()) }, "invalid TTL"},
-		{"missing TTL", func(v *[3]lua.LValue) { v[1] = lua.LNil }, "invalid TTL"},
-		{"string IPs", func(v *[3]lua.LValue) { v[0] = lua.LString("127.0.0.1") }, "native IP slice"},
-		{"wrong userdata", func(v *[3]lua.LValue) { v[0].(*lua.LUserData).Value = net.ParseIP("127.0.0.1") }, "native IP slice"},
-		{"script error", func(v *[3]lua.LValue) { v[2] = lua.LString("blocked by script") }, "blocked by script"},
-		{"invalid error", func(v *[3]lua.LValue) { v[2] = lua.LTrue }, "error or string"},
-	} {
-		t.Run(tc.name, func(t *testing.T) {
-			addresses := L.NewUserData()
-			addresses.Value = []net.IP{net.ParseIP("127.0.0.1")}
-			values := [3]lua.LValue{addresses, lua.LNumber(60), lua.LNil}
-			tc.change(&values)
-			_, _, err := readLuaDNSResult(values[0], values[1], values[2])
-			if err == nil || !strings.Contains(err.Error(), tc.want) {
-				t.Fatalf("readLuaDNSResult error = %v, want %q", err, tc.want)
-			}
-		})
-	}
-
-	addresses := L.NewUserData()
-	addresses.Value = []net.IP(nil)
-	for _, empty := range []lua.LValue{addresses, lua.LNil} {
-		if _, _, err := readLuaDNSResult(empty, lua.LNumber(0), lua.LNil); !go_errors.Is(err, featureDNS.ErrEmptyResponse) {
-			t.Fatalf("empty result error = %v, want ErrEmptyResponse", err)
-		}
-	}
-	wantErr := go_errors.New("upstream failed")
-	errorValue := L.NewUserData()
-	errorValue.Value = wantErr
-	if _, _, err := readLuaDNSResult(lua.LNil, lua.LNil, errorValue); err != wantErr {
-		t.Fatalf("upstream error = %v, want original error %v", err, wantErr)
-	}
-}
-
-func TestCallLuaHookCancellation(t *testing.T) {
-	L := lua.NewState()
-	defer L.Close()
-	if err := L.DoString(`function HandleDNSQuery(domain, ipv4, ipv6, fake) while true do end end`); err != nil {
-		t.Fatal(err)
-	}
-	ctx, cancel := context.WithCancel(context.Background())
-	cancel()
-	L.SetContext(ctx)
-	_, _, err := (&DNS{}).callLuaHook(L, "example.com", featureDNS.IPOption{IPv4Enable: true})
-	if err == nil {
-		t.Fatal("CallLuaHook did not stop after context cancellation")
-	}
-	if L.Context() != ctx {
-		t.Fatal("CallLuaHook changed the Lua state's context")
-	}
-}
-
-func TestCallLuaHookNormalizesDomain(t *testing.T) {
-	L := lua.NewState()
-	defer L.Close()
-	addresses := L.NewUserData()
-	addresses.Value = []net.IP{net.ParseIP("127.0.0.1")}
-	L.SetGlobal("ips", addresses)
-	if err := L.DoString(`
-		function HandleDNSQuery(domain, ipv4, ipv6, fake)
-			assert(domain == "example.com")
-			assert(ipv4 and not ipv6 and not fake)
-			return ips, 60, nil
-		end
-	`); err != nil {
-		t.Fatal(err)
-	}
-	s := &DNS{}
-	if _, _, err := s.callLuaHook(L, "ExAmPlE.CoM", featureDNS.IPOption{IPv4Enable: true}); err != nil {
-		t.Fatal(err)
-	}
-}
-
-func TestCallLuaHookRestoresStack(t *testing.T) {
-	for _, tc := range []struct {
-		name    string
-		body    string
-		wantErr bool
-	}{
-		{"success", `return ips, 60`, false},
-		{"error", `error("failed")`, true},
-	} {
-		t.Run(tc.name, func(t *testing.T) {
-			L := lua.NewState()
-			defer L.Close()
-			addresses := L.NewUserData()
-			addresses.Value = []net.IP{net.ParseIP("127.0.0.1")}
-			L.SetGlobal("ips", addresses)
-			if err := L.DoString("function HandleDNSQuery() " + tc.body + " end"); err != nil {
-				t.Fatal(err)
-			}
-			L.Push(lua.LTrue)
-			_, _, err := (&DNS{}).callLuaHook(L, "example.com", featureDNS.IPOption{IPv4Enable: true})
-			if (err != nil) != tc.wantErr {
-				t.Fatalf("hook error = %v, want error %t", err, tc.wantErr)
-			}
-			if L.GetTop() != 1 || L.Get(1) != lua.LTrue {
-				t.Fatal("hook did not restore the stack")
-			}
-		})
-	}
-}
-
-func TestLuaDNSServerQuery(t *testing.T) {
-	L := lua.NewState()
-	defer L.Close()
-	geodata.RegisterLua(L)
-	option := featureDNS.IPOption{IPv4Enable: true}
-	ips := []net.IP{net.ParseIP("127.0.0.1"), net.ParseIP("8.8.8.8")}
-	server := &DNS{clients: []*Client{{server: &benchmarkLuaNameServer{ips: ips}, ipOption: &option, timeoutMs: time.Second}}}
-	server.registerLua(L)
-	if err := L.DoString(`
-local server = require("xray.dns").Servers[1]
-local matcher = require("xray.geodata").BuildIPMatcher("127.0.0.0/8")
-function HandleDNSQuery(domain, ipv4, ipv6, fake)
-    local ips, ttl, err = server:Query(domain, ipv4, ipv6, fake)
-    assert(type(ips) == "userdata" and not err)
-    assert(matcher:AnyMatch(ips))
-    local matched = matcher:FilterIPs(ips)
-    return matched, ttl, err
-end
-`); err != nil {
-		t.Fatal(err)
-	}
-	L.SetContext(context.Background())
-	got, ttl, err := server.callLuaHook(L, "example.com", option)
-	if err != nil || ttl != 60 || len(got) != 1 || !got[0].Equal(ips[0]) {
-		t.Fatalf("server query = %v, TTL %d, %v", got, ttl, err)
-	}
-}
-
-type luaDNSClient struct {
-	featureDNS.Client
-	lookup func(string, featureDNS.IPOption) ([]net.IP, uint32, error)
-}
-
-func (c *luaDNSClient) LookupIP(domain string, option featureDNS.IPOption) ([]net.IP, uint32, error) {
-	return c.lookup(domain, option)
-}
-
-func TestLuaDNSClientQuery(t *testing.T) {
-	L := lua.NewState()
-	defer L.Close()
-	L.SetContext(context.Background())
-	geodata.RegisterLua(L)
-	want := []net.IP{{127, 0, 0, 1}}
-	client := &luaDNSClient{lookup: func(domain string, option featureDNS.IPOption) ([]net.IP, uint32, error) {
-		if domain != "MiXeD.Example." || !option.IPv4Enable || option.IPv6Enable || !option.FakeEnable {
-			t.Fatalf("dns.Query arguments = %q, %+v", domain, option)
-		}
-		return want, 42, nil
-	}}
-	RegisterLua(L, client)
-	if err := L.DoString(`
-local dns = require("xray.dns")
-local matcher = require("xray.geodata").BuildIPMatcher("127.0.0.1")
-assert(dns.Servers == nil)
-ips, ttl, err = dns.Query("MiXeD.Example.", true, false, true)
-assert(not err and ttl == 42 and matcher:AnyMatch(ips))
-`); err != nil {
-		t.Fatal(err)
-	}
-	got := L.GetGlobal("ips").(*lua.LUserData).Value.([]net.IP)
-	if &got[0] != &want[0] {
-		t.Fatal("dns.Query copied the IP slice")
-	}
-}
-
-func TestLuaDNSLocalClient(t *testing.T) {
-	L := lua.NewState()
-	defer L.Close()
-	L.SetContext(context.Background())
-	RegisterLua(L, localdns.New())
-	if err := L.DoString(`
-local dns = require("xray.dns")
-assert(dns.Servers[1].ID == "localhost")
-serverIPs, _, serverErr = dns.Servers[1]:Query("127.0.0.1", true, false, false)
-clientIPs, _, clientErr = dns.Query("127.0.0.1", true, false, false)
-assert(not serverErr and not clientErr)
-`); err != nil {
-		t.Fatal(err)
-	}
-	for _, name := range []string{"serverIPs", "clientIPs"} {
-		ips := L.GetGlobal(name).(*lua.LUserData).Value.([]net.IP)
-		if len(ips) != 1 || !ips[0].Equal(net.ParseIP("127.0.0.1")) {
-			t.Fatalf("%s = %v", name, ips)
-		}
-	}
-}
-
-type benchmarkLuaNameServer struct {
-	ips []net.IP
-}
-
-func (*benchmarkLuaNameServer) Name() string         { return "benchmark" }
-func (*benchmarkLuaNameServer) IsDisableCache() bool { return true }
-func (s *benchmarkLuaNameServer) QueryIP(context.Context, string, featureDNS.IPOption) ([]net.IP, uint32, error) {
-	return s.ips, 60, nil
-}
-
-// BenchmarkLuaDNSHookCall isolates a preloaded Lua hook and its server:Query bridge.
-// The direct case measures the same DNS client without Lua.
-func BenchmarkLuaDNSHookCall(b *testing.B) {
-	option := featureDNS.IPOption{IPv4Enable: true}
-	ip := net.ParseIP("127.0.0.1")
-	upstream := &benchmarkLuaNameServer{ips: []net.IP{ip}}
-	client := &Client{server: upstream, ipOption: &option, timeoutMs: time.Second}
-	server := &DNS{clients: []*Client{client}}
-	L := lua.NewState()
-	defer L.Close()
-	server.registerLua(L)
-	if err := L.DoString(`
-local server = require("xray.dns").Servers[1]
-function HandleDNSQuery(domain, ipv4, ipv6, fake)
-    return server:Query(domain, ipv4, ipv6, fake)
-end
-`); err != nil {
-		b.Fatal(err)
-	}
-
-	ctx := context.Background()
-	L.SetContext(ctx)
-	for _, bench := range []struct {
-		name  string
-		query func() ([]net.IP, uint32, error)
-	}{
-		{"direct", func() ([]net.IP, uint32, error) { return client.QueryIP(ctx, "example.com", option) }},
-		{"lua_hook", func() ([]net.IP, uint32, error) { return server.callLuaHook(L, "example.com", option) }},
-	} {
-		b.Run(bench.name, func(b *testing.B) {
-			b.ReportAllocs()
-			b.ResetTimer()
-			var ips []net.IP
-			var ttl uint32
-			var err error
-			for i := 0; i < b.N; i++ {
-				ips, ttl, err = bench.query()
-				if err != nil {
-					b.Fatal(err)
-				}
-			}
-			b.StopTimer()
-			if ttl != 60 || len(ips) != 1 || !ips[0].Equal(ip) {
-				b.Fatalf("query() = %v, TTL %d; want %v, TTL 60", ips, ttl, ip)
-			}
-		})
-	}
-}

app/dns/nameserver.go

@@ -29,7 +29,6 @@ type Server interface {
 
 // Client is the interface for DNS client.
 type Client struct {
-	id            string
 	server        Server
 	skipFallback  bool
 	expectedIPs   geodata.IPMatcher
@@ -85,7 +84,7 @@ func NewServer(ctx context.Context, dest net.Destination, dispatcher routing.Dis
 	if dest.Network == net.Network_UDP { // UDP classic DNS mode
 		return NewClassicNameServer(dest, dispatcher, disableCache, serveStale, serveExpiredTTL, clientIP), nil
 	}
-	return nil, errors.New("No available name server could be created from ", dest)
+	return nil, errors.New("No available name server could be created from ", dest).AtWarning()
 }
 
 // NewClient creates a DNS client managing a name server with client IP, domain rules and expected IPs.
@@ -98,12 +97,12 @@ func NewClient(
 	ipOption dns.IPOption,
 	updateRules func(bool),
 ) (*Client, error) {
-	client := &Client{id: ns.Id}
+	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, serveStale, serveExpiredTTL, clientIP)
 		if err != nil {
-			return errors.New("failed to create nameserver").Base(err)
+			return errors.New("failed to create nameserver").Base(err).AtWarning()
 		}
 
 		_, isLocalDNS := server.(*LocalNameServer)
@@ -114,7 +113,7 @@ func NewClient(
 		if len(ns.ExpectedIp) > 0 {
 			expectedMatcher, err = geodata.IPReg.BuildIPMatcher(ns.ExpectedIp)
 			if err != nil {
-				return errors.New("failed to create expected ip matcher").Base(err)
+				return errors.New("failed to create expected ip matcher").Base(err).AtWarning()
 			}
 		}
 
@@ -123,7 +122,7 @@ func NewClient(
 		if len(ns.UnexpectedIp) > 0 {
 			unexpectedMatcher, err = geodata.IPReg.BuildIPMatcher(ns.UnexpectedIp)
 			if err != nil {
-				return errors.New("failed to create unexpected ip matcher").Base(err)
+				return errors.New("failed to create unexpected ip matcher").Base(err).AtWarning()
 			}
 		}
 
@@ -136,7 +135,7 @@ func NewClient(
 			}
 		}
 
-		timeoutMs := 4000 * time.Millisecond
+		var timeoutMs = 4000 * time.Millisecond
 		if ns.TimeoutMs > 0 {
 			timeoutMs = time.Duration(ns.TimeoutMs) * time.Millisecond
 		}

app/dns/nameserver_doh.go

@@ -137,32 +137,14 @@ func (s *DoHNameServer) sendQuery(ctx context.Context, noResponseErrCh chan<- er
 	if s.Name()+"." == "DOH//"+fqdn {
 		errors.LogError(ctx, s.Name(), " tries to resolve itself! Use IP or set \"hosts\" instead")
 		if noResponseErrCh != nil {
-			err := errors.New("tries to resolve itself!", s.Name())
+			noResponseErrCh <- errors.New("tries to resolve itself!", s.Name())
-			if option.IPv4Enable {
-				noResponseErrCh <- err
-			}
-			if option.IPv6Enable {
-				noResponseErrCh <- err
-			}
 		}
 		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, err := buildReqMsgs(fqdn, 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))))
-	if err != nil {
-		errors.LogErrorInner(ctx, err, "failed to build dns query for ", fqdn)
-		if noResponseErrCh != nil {
-			if option.IPv4Enable {
-				noResponseErrCh <- err
-			}
-			if option.IPv6Enable {
-				noResponseErrCh <- err
-			}
-		}
-		return
-	}
 
 	var deadline time.Time
 	if d, ok := ctx.Deadline(); ok {

app/dns/nameserver_fakedns.go

@@ -27,7 +27,7 @@ func (s *FakeDNSServer) IsDisableCache() bool {
 
 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")
+		return nil, 0, errors.New("Unable to locate a fake DNS Engine").AtError()
 	}
 
 	var ips []net.Address
@@ -39,7 +39,7 @@ func (f *FakeDNSServer) QueryIP(ctx context.Context, domain string, opt dns.IPOp
 
 	netIP, err := toNetIP(ips)
 	if err != nil {
-		return nil, 0, errors.New("Unable to convert IP to net ip").Base(err)
+		return nil, 0, errors.New("Unable to convert IP to net ip").Base(err).AtError()
 	}
 
 	errors.LogInfo(ctx, f.Name(), " got answer: ", domain, " -> ", ips)

app/dns/nameserver_local.go

@@ -18,6 +18,7 @@ type LocalNameServer struct {
 
 // QueryIP implements Server.
 func (s *LocalNameServer) QueryIP(ctx context.Context, domain string, option dns.IPOption) (ips []net.IP, ttl uint32, err error) {
+
 	start := time.Now()
 	ips, ttl, err = s.client.LookupIP(domain, option)
 
@@ -49,5 +50,5 @@ func NewLocalNameServer() *LocalNameServer {
 
 // NewLocalDNSClient creates localdns client object for directly lookup in system DNS.
 func NewLocalDNSClient(ipOption dns.IPOption) *Client {
-	return &Client{id: "localhost", server: NewLocalNameServer(), ipOption: &ipOption}
+	return &Client{server: NewLocalNameServer(), ipOption: &ipOption}
 }

app/dns/nameserver_quic.go

@@ -78,19 +78,7 @@ func (s *QUICNameServer) getCacheController() *CacheController { return s.cacheC
 func (s *QUICNameServer) sendQuery(ctx context.Context, noResponseErrCh chan<- error, fqdn string, option dns_feature.IPOption) {
 	errors.LogInfo(ctx, s.Name(), " querying: ", fqdn)
 
-	reqs, err := buildReqMsgs(fqdn, option, s.newReqID, genEDNS0Options(s.clientIP, 0))
+	reqs := buildReqMsgs(fqdn, option, s.newReqID, genEDNS0Options(s.clientIP, 0))
-	if err != nil {
-		errors.LogErrorInner(ctx, err, "failed to build dns query for ", fqdn)
-		if noResponseErrCh != nil {
-			if option.IPv4Enable {
-				noResponseErrCh <- err
-			}
-			if option.IPv6Enable {
-				noResponseErrCh <- err
-			}
-		}
-		return
-	}
 
 	var deadline time.Time
 	if d, ok := ctx.Deadline(); ok {

app/dns/nameserver_tcp.go

@@ -113,19 +113,7 @@ func (s *TCPNameServer) getCacheController() *CacheController {
 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, err := buildReqMsgs(fqdn, option, s.newReqID, genEDNS0Options(s.clientIP, 0))
+	reqs := buildReqMsgs(fqdn, option, s.newReqID, genEDNS0Options(s.clientIP, 0))
-	if err != nil {
-		errors.LogErrorInner(ctx, err, "failed to build dns query for ", fqdn)
-		if noResponseErrCh != nil {
-			if option.IPv4Enable {
-				noResponseErrCh <- err
-			}
-			if option.IPv6Enable {
-				noResponseErrCh <- err
-			}
-		}
-		return
-	}
 
 	var deadline time.Time
 	if d, ok := ctx.Deadline(); ok {

app/dns/nameserver_udp.go

@@ -131,6 +131,8 @@ func (s *ClassicNameServer) HandleResponse(ctx context.Context, packet *udp_prot
 			newReq.msg = &newMsg
 			s.addPendingRequest(&newReq)
 			b, _ := dns.PackMessage(newReq.msg)
+			copyDest := net.UDPDestination(s.address.Address, s.address.Port)
+			b.UDP = &copyDest
 			s.udpServer.Dispatch(toDnsContext(newReq.ctx, s.address.String()), *s.address, b)
 			return
 		}
@@ -161,19 +163,7 @@ func (s *ClassicNameServer) getCacheController() *CacheController {
 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, err := buildReqMsgs(fqdn, option, s.newReqID, genEDNS0Options(s.clientIP, 0))
+	reqs := buildReqMsgs(fqdn, option, s.newReqID, genEDNS0Options(s.clientIP, 0))
-	if err != nil {
-		errors.LogErrorInner(ctx, err, "failed to build dns query for ", fqdn)
-		if noResponseErrCh != nil {
-			if option.IPv4Enable {
-				noResponseErrCh <- err
-			}
-			if option.IPv6Enable {
-				noResponseErrCh <- err
-			}
-		}
-		return
-	}
 
 	for _, req := range reqs {
 		udpReq := &udpDnsRequest{
@@ -189,6 +179,8 @@ func (s *ClassicNameServer) sendQuery(ctx context.Context, noResponseErrCh chan<
 			}
 			return
 		}
+		copyDest := net.UDPDestination(s.address.Address, s.address.Port)
+		b.UDP = &copyDest
 		s.udpServer.Dispatch(toDnsContext(ctx, s.address.String()), *s.address, b)
 	}
 }

app/dns/script.go

@@ -1,59 +0,0 @@
-package dns
-
-import (
-	"time"
-
-	"github.com/xtls/xray-core/common/errors"
-	"github.com/xtls/xray-core/common/geodata"
-	"github.com/xtls/xray-core/common/log"
-	xlua "github.com/xtls/xray-core/common/lua"
-	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/features/dns"
-	lua "github.com/yuin/gopher-lua"
-)
-
-const scriptExecutionTimeout = 6 * time.Second
-
-type scriptEngine struct {
-	dns  *DNS
-	pool *xlua.Pool
-}
-
-func newScriptEngine(path string, server *DNS) (*scriptEngine, error) {
-	program, err := xlua.CompileFile(path)
-	if err != nil {
-		return nil, err
-	}
-	e := &scriptEngine{dns: server}
-	e.pool, err = xlua.NewPool(server.ctx, scriptExecutionTimeout, program.NewStateFactory(
-		scriptExecutionTimeout*20,
-		func(L *lua.LState) {
-			geodata.RegisterLua(L)
-			log.RegisterLua(L)
-			server.registerLua(L)
-		},
-		func(L *lua.LState) error {
-			if L.GetGlobal("HandleDNSQuery").Type() != lua.LTFunction {
-				return errors.New("DNS script must define HandleDNSQuery(...)")
-			}
-			return nil
-		}))
-	if err != nil {
-		return nil, err
-	}
-	errors.LogInfo(server.ctx, "DNS script initialized from ", path)
-	return e, nil
-}
-
-func (e *scriptEngine) close() {
-	e.pool.Close()
-}
-
-func (e *scriptEngine) query(domain string, option dns.IPOption) (ips []net.IP, ttl uint32, err error) {
-	err = e.pool.WithState(nil, 0, func(L *lua.LState) error {
-		var hookErr error
-		ips, ttl, hookErr = e.dns.callLuaHook(L, domain, option)
-		return hookErr
-	})
-	return
-}

app/dns/script_test.go

@@ -1,197 +0,0 @@
-package dns
-
-import (
-	"context"
-	"os"
-	"path/filepath"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/xtls/xray-core/common/net"
-	featureDNS "github.com/xtls/xray-core/features/dns"
-)
-
-type geoIPScriptNameServer struct {
-	name    string
-	answers map[string]net.IP
-	ttl     uint32
-	calls   int
-}
-
-func (s *geoIPScriptNameServer) Name() string         { return s.name }
-func (s *geoIPScriptNameServer) IsDisableCache() bool { return true }
-
-func (s *geoIPScriptNameServer) QueryIP(ctx context.Context, domain string, _ featureDNS.IPOption) ([]net.IP, uint32, error) {
-	if err := ctx.Err(); err != nil {
-		return nil, 0, err
-	}
-	s.calls++
-	ip, ok := s.answers[domain]
-	if !ok {
-		return nil, 0, featureDNS.ErrEmptyResponse
-	}
-	return []net.IP{ip}, s.ttl, nil
-}
-
-func TestDNSScriptGeoIPFallback(t *testing.T) {
-	t.Setenv("xray.location.asset", filepath.Join("..", "..", "resources"))
-	script := `
-local servers = require("xray.dns").Servers
-local us_ips = require("xray.geodata").BuildIPMatcher("geoip:us")
-
-local by_id = {}
-for _, server in ipairs(servers) do
-    by_id[server.ID] = server
-end
-assert(by_id.primary and by_id.fallback, "primary and fallback DNS servers are required")
-
-function HandleDNSQuery(domain, ipv4, ipv6, fake)
-    local ips, ttl, err = by_id.primary:Query(domain, ipv4, ipv6, fake)
-    if not err and us_ips:AnyMatch(ips) then
-        return ips, ttl, nil
-    end
-    return by_id.fallback:Query(domain, ipv4, ipv6, fake)
-end
-`
-	scriptPath := filepath.Join(t.TempDir(), "geoip_fallback.lua")
-	if err := os.WriteFile(scriptPath, []byte(script), 0o600); err != nil {
-		t.Fatal(err)
-	}
-
-	primary := &geoIPScriptNameServer{
-		name: "primary",
-		answers: map[string]net.IP{
-			"us.example":    net.ParseIP("2001:4860:4860::8888"),
-			"other.example": net.ParseIP("127.0.0.1"),
-		},
-		ttl: 30,
-	}
-	fallback := &geoIPScriptNameServer{
-		name:    "fallback",
-		answers: map[string]net.IP{"other.example": net.ParseIP("9.9.9.9")},
-		ttl:     60,
-	}
-	option := featureDNS.IPOption{IPv4Enable: true, IPv6Enable: true}
-	hosts, err := NewStaticHosts(nil)
-	if err != nil {
-		t.Fatal(err)
-	}
-	server := &DNS{
-		ctx:        context.Background(),
-		hosts:      hosts,
-		ipOption:   &option,
-		scriptPath: scriptPath,
-		clients: []*Client{
-			{id: "primary", server: primary, ipOption: &option, timeoutMs: 2 * time.Second},
-			{id: "fallback", server: fallback, ipOption: &option, timeoutMs: 2 * time.Second},
-		},
-	}
-	if err := server.Start(); err != nil {
-		t.Fatal(err)
-	}
-	defer server.Close()
-
-	for _, tc := range []struct {
-		domain string
-		ip     net.IP
-		ttl    uint32
-	}{
-		{"Us.Example.", net.ParseIP("2001:4860:4860::8888"), 30},
-		{"other.example", net.ParseIP("9.9.9.9"), 60},
-	} {
-		ips, ttl, err := server.LookupIP(tc.domain, option)
-		if err != nil {
-			t.Fatalf("LookupIP(%q): %v", tc.domain, err)
-		}
-		if ttl != tc.ttl || len(ips) != 1 || !ips[0].Equal(tc.ip) {
-			t.Fatalf("LookupIP(%q) = %v, TTL %d; want %v, TTL %d", tc.domain, ips, ttl, tc.ip, tc.ttl)
-		}
-	}
-	if primary.calls != 2 || fallback.calls != 1 {
-		t.Fatalf("upstream calls: primary %d, fallback %d; want 2 and 1", primary.calls, fallback.calls)
-	}
-}
-
-func TestDNSScriptRejectsInvalidStartup(t *testing.T) {
-	for _, tc := range []struct {
-		name   string
-		script string
-	}{
-		{"syntax", "function HandleDNSQuery("},
-		{"missing hook", "value = 1"},
-		{"top-level error", `error("setup failed")`},
-	} {
-		t.Run(tc.name, func(t *testing.T) {
-			path := filepath.Join(t.TempDir(), "script.lua")
-			if err := os.WriteFile(path, []byte(tc.script), 0o600); err != nil {
-				t.Fatal(err)
-			}
-			server := &DNS{ctx: context.Background(), scriptPath: path}
-			if err := server.Start(); err == nil {
-				t.Fatal("Start accepted an invalid DNS script")
-			}
-			if server.script != nil {
-				t.Fatal("Start retained a script engine after failure")
-			}
-		})
-	}
-}
-
-func TestDNSScriptHookErrorAndFakeDNSOption(t *testing.T) {
-	path := filepath.Join(t.TempDir(), "script.lua")
-	script := `
-local server = require("xray.dns").Servers[1]
-local log = require("xray.log")
-log.Info("DNS script loaded")
-function HandleDNSQuery(domain, ipv4, ipv6, fake)
-    log.Debug("DNS query: ", domain)
-    if domain == "bad.example" then error("script failure") end
-    local ips, ttl, err = server:Query(domain, ipv4, ipv6, fake)
-    if err then log.Error("DNS failed: ", err) end
-    return ips, ttl, err
-end
-`
-	if err := os.WriteFile(path, []byte(script), 0o600); err != nil {
-		t.Fatal(err)
-	}
-	option := featureDNS.IPOption{IPv4Enable: true}
-	hosts, err := NewStaticHosts(nil)
-	if err != nil {
-		t.Fatal(err)
-	}
-	upstream := &geoIPScriptNameServer{
-		name:    "FakeDNS",
-		answers: map[string]net.IP{"good.example": net.ParseIP("198.18.0.1")},
-		ttl:     30,
-	}
-	server := &DNS{
-		ctx:        context.Background(),
-		hosts:      hosts,
-		ipOption:   &option,
-		scriptPath: path,
-		clients:    []*Client{{id: "fake", server: upstream, ipOption: &option, timeoutMs: time.Second}},
-	}
-	if err := server.Start(); err != nil {
-		t.Fatal(err)
-	}
-	defer server.Close()
-
-	if _, _, err := server.LookupIP("bad.example", option); err == nil || !strings.Contains(err.Error(), "script failure") {
-		t.Fatalf("hook failure = %v, want script failure", err)
-	}
-	if _, _, err := server.LookupIP("good.example", option); err != featureDNS.ErrEmptyResponse {
-		t.Fatalf("FakeDNS without FakeEnable = %v, want ErrEmptyResponse", err)
-	}
-	if upstream.calls != 0 {
-		t.Fatalf("FakeDNS was queried without FakeEnable: %d calls", upstream.calls)
-	}
-	withFake := featureDNS.IPOption{IPv4Enable: true, FakeEnable: true}
-	ips, ttl, err := server.LookupIP("good.example", withFake)
-	if err != nil || ttl != 30 || len(ips) != 1 || !ips[0].Equal(net.ParseIP("198.18.0.1")) {
-		t.Fatalf("FakeDNS with FakeEnable = %v, TTL %d, %v", ips, ttl, err)
-	}
-	if upstream.calls != 1 {
-		t.Fatalf("FakeDNS query count = %d, want 1", upstream.calls)
-	}
-}

app/geodata/download.go

@@ -2,7 +2,6 @@ package geodata
 
 import (
 	"context"
-	"crypto/tls"
 	go_errors "errors"
 	"io"
 	"net/http"
@@ -10,7 +9,6 @@ import (
 	"path/filepath"
 	"time"
 
-	utls "github.com/refraction-networking/utls"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/platform/filesystem"
@@ -18,7 +16,6 @@ import (
 	"github.com/xtls/xray-core/common/utils"
 	"github.com/xtls/xray-core/features/routing"
 	"github.com/xtls/xray-core/transport/internet/tagged"
-	"golang.org/x/net/http2"
 )
 
 const idleTimeout = 30 * time.Second
@@ -29,9 +26,8 @@ type stage struct {
 }
 
 type downloader struct {
-	ctx         context.Context
+	ctx    context.Context
-	httpClient  *http.Client
+	client *http.Client
-	httpsClient *http.Client
 }
 
 type idleConn struct {
@@ -57,84 +53,52 @@ func (c *idleConn) Write(b []byte) (int, error) {
 
 func newDownloader(ctx context.Context, dispatcher routing.Dispatcher, outbound string) *downloader {
 	return &downloader{
-		ctx:         ctx,
+		ctx:    ctx,
-		httpClient:  newClient(ctx, dispatcher, outbound, false),
+		client: newClient(ctx, dispatcher, outbound),
-		httpsClient: newClient(ctx, dispatcher, outbound, true),
 	}
 }
 
-func newClient(baseCtx context.Context, dispatcher routing.Dispatcher, outbound string, isHTTPS bool) *http.Client {
+func newClient(baseCtx context.Context, dispatcher routing.Dispatcher, outbound string) *http.Client {
-	dial := func(ctx context.Context, network, address string) (net.Conn, error) {
+	return &http.Client{
-		var conn net.Conn
+		Transport: &http.Transport{
-		err := task.Run(ctx, func() error {
+			Proxy:             nil,
-			if tagged.Dialer == nil {
+			DisableKeepAlives: true,
-				return errors.New("tagged dialer is not initialized")
+			DialContext: func(ctx context.Context, network, address string) (net.Conn, error) {
-			}
+				var conn net.Conn
-			dest, err := net.ParseDestination(network + ":" + address)
+				err := task.Run(ctx, func() error {
-			if err != nil {
+					if tagged.Dialer == nil {
-				return errors.New("cannot understand address").Base(err)
+						return errors.New("tagged dialer is not initialized")
-			}
+					}
-			c, err := tagged.Dialer(baseCtx, dispatcher, dest, outbound)
+					dest, err := net.ParseDestination(network + ":" + address)
-			if err != nil {
-				return errors.New("cannot dial remote address ", dest).Base(err)
-			}
-			conn = c
-			return nil
-		})
-		if err != nil {
-			return nil, errors.New("cannot finish connection").Base(err)
-		}
-		return &idleConn{
-			Conn: conn,
-		}, nil
-	}
-	if isHTTPS {
-		return &http.Client{
-			Transport: &http2.Transport{
-				DialTLSContext: func(ctx context.Context, network string, address string, cfg *tls.Config) (net.Conn, error) {
-					conn, err := dial(ctx, network, address)
 					if err != nil {
-						return nil, err
+						return errors.New("cannot understand address").Base(err)
 					}
-					host, _, _ := net.SplitHostPort(address)
+					c, err := tagged.Dialer(baseCtx, dispatcher, dest, outbound)
-					tlsConn := utls.UClient(conn, &utls.Config{ServerName: host}, utls.HelloChrome_Auto)
+					if err != nil {
-					handshakeCtx, cancel := context.WithTimeout(ctx, idleTimeout)
+						return errors.New("cannot dial remote address ", dest).Base(err)
-					defer cancel()
-					if err := tlsConn.HandshakeContext(handshakeCtx); err != nil {
-						conn.Close()
-						return nil, err
 					}
-					return tlsConn, nil
+					conn = c
-				},
+					return nil
-			},
+				})
-			CheckRedirect: func(req *http.Request, via []*http.Request) error {
+				if err != nil {
-				if req.URL.Scheme != "https" {
+					return nil, errors.New("cannot finish connection").Base(err)
-					return errors.New("redirected to non-https URL: ", req.URL.String())
 				}
-				if len(via) >= 10 {
+				return &idleConn{
-					return errors.New("stopped after 10 redirects")
+					Conn: conn,
-				}
+				}, nil
-				return nil
 			},
-		}
+			TLSHandshakeTimeout:   idleTimeout,
-	} else {
+			ResponseHeaderTimeout: idleTimeout,
-		return &http.Client{
+		},
-			Transport: &http.Transport{
+		CheckRedirect: func(req *http.Request, via []*http.Request) error {
-				Proxy:                 nil,
+			if req.URL.Scheme != "https" {
-				DisableKeepAlives:     true,
+				return errors.New("redirected to non-https URL: ", req.URL.String())
-				DialContext:           dial,
+			}
-				ResponseHeaderTimeout: idleTimeout,
+			if len(via) >= 10 {
-			},
+				return errors.New("stopped after 10 redirects")
-			CheckRedirect: func(req *http.Request, via []*http.Request) error {
+			}
-				if req.URL.Scheme != "https" {
+			return nil
-					return errors.New("redirected to non-https URL: ", req.URL.String())
+		},
-				}
-				if len(via) >= 10 {
-					return errors.New("stopped after 10 redirects")
-				}
-				return nil
-			},
-		}
 	}
 }
 
@@ -196,13 +160,7 @@ func (d *downloader) fetch(rawURL string, writer io.Writer) error {
 	}
 	utils.TryDefaultHeadersWith(req.Header, "nav")
 
-	var client *http.Client
+	resp, err := d.client.Do(req)
-	if req.URL.Scheme == "https" {
-		client = d.httpsClient
-	} else {
-		client = d.httpClient
-	}
-	resp, err := client.Do(req)
 	if err != nil {
 		return err
 	}

app/log/log.go

@@ -89,10 +89,10 @@ func (g *Instance) startInternal() error {
 	g.active = true
 
 	if err := g.initAccessLogger(); err != nil {
-		return errors.New("failed to initialize access logger").Base(err)
+		return errors.New("failed to initialize access logger").Base(err).AtWarning()
 	}
 	if err := g.initErrorLogger(); err != nil {
-		return errors.New("failed to initialize error logger").Base(err)
+		return errors.New("failed to initialize error logger").Base(err).AtWarning()
 	}
 
 	return nil
@@ -141,10 +141,6 @@ func (g *Instance) Handle(msg log.Message) {
 	}
 }
 
-func (g *Instance) Severity() log.Severity {
-	return g.config.ErrorLogLevel
-}
-
 // Close implements common.Closable.Close().
 func (g *Instance) Close() error {
 	errors.LogDebug(context.Background(), "Logger closing")

app/metrics/metrics.go

@@ -2,18 +2,15 @@ package metrics
 
 import (
 	"context"
-	"encoding/json"
-	stderrors "errors"
 	"expvar"
-	stdnet "net"
 	"net/http"
-	"net/http/pprof"
+	_ "net/http/pprof"
 	"strings"
 
 	"github.com/xtls/xray-core/app/observatory"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
-	xnet "github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/signal/done"
 	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/extension"
@@ -24,17 +21,15 @@ import (
 type MetricsHandler struct {
 	ohm          outbound.Manager
 	statsManager feature_stats.Manager
-	ctx          context.Context
+	observatory  extension.Observatory
 	tag          string
 	listen       string
-	tcpListener  xnet.Listener
+	tcpListener  net.Listener
-	listener     *OutboundListener
 }
 
 // NewMetricsHandler creates a new MetricsHandler based on the given config.
 func NewMetricsHandler(ctx context.Context, config *Config) (*MetricsHandler, error) {
 	c := &MetricsHandler{
-		ctx:    ctx,
 		tag:    config.Tag,
 		listen: config.Listen,
 	}
@@ -42,6 +37,46 @@ func NewMetricsHandler(ctx context.Context, config *Config) (*MetricsHandler, er
 		c.statsManager = sm
 		c.ohm = om
 	}))
+	expvar.Publish("stats", expvar.Func(func() interface{} {
+		resp := map[string]map[string]map[string]int64{
+			"inbound":  {},
+			"outbound": {},
+			"user":     {},
+		}
+		c.statsManager.VisitCounters(func(name string, counter feature_stats.Counter) bool {
+			nameSplit := strings.Split(name, ">>>")
+			typeName, tagOrUser, direction := nameSplit[0], nameSplit[1], nameSplit[3]
+			if item, found := resp[typeName][tagOrUser]; found {
+				item[direction] = counter.Value()
+			} else {
+				resp[typeName][tagOrUser] = map[string]int64{
+					direction: counter.Value(),
+				}
+			}
+			return true
+		})
+		return resp
+	}))
+	expvar.Publish("observatory", expvar.Func(func() interface{} {
+		if c.observatory == nil {
+			common.Must(core.RequireFeatures(ctx, func(observatory extension.Observatory) error {
+				c.observatory = observatory
+				return nil
+			}))
+			if c.observatory == nil {
+				return nil
+			}
+		}
+		resp := map[string]*observatory.OutboundStatus{}
+		if o, err := c.observatory.GetObservation(context.Background()); err != nil {
+			return err
+		} else {
+			for _, x := range o.(*observatory.ObservationResult).GetStatus() {
+				resp[x.OutboundTag] = x
+			}
+		}
+		return resp
+	}))
 	return c, nil
 }
 
@@ -50,172 +85,46 @@ func (p *MetricsHandler) Type() interface{} {
 }
 
 func (p *MetricsHandler) Start() error {
-	handler := p.httpHandler()
 
 	// direct listen a port if listen is set
 	if p.listen != "" {
-		TCPlistener, err := xnet.Listen("tcp", p.listen)
+		TCPlistener, err := net.Listen("tcp", p.listen)
 		if err != nil {
 			return err
 		}
 		p.tcpListener = TCPlistener
 		errors.LogInfo(context.Background(), "Metrics server listening on ", p.listen)
 
-		go p.serve(TCPlistener, handler)
+		go func() {
-	}
+			if err := http.Serve(TCPlistener, http.DefaultServeMux); err != nil {
-
+				errors.LogErrorInner(context.Background(), err, "failed to start metrics server")
-	if p.tag == "" {
+			}
-		if p.tcpListener == nil {
+		}()
-			return errors.New("metrics must have a tag or listen address")
-		}
-		return nil
 	}
 
 	listener := &OutboundListener{
-		buffer: make(chan xnet.Conn, 4),
+		buffer: make(chan net.Conn, 4),
 		done:   done.New(),
 	}
-	p.listener = listener
 
-	go p.serve(listener, handler)
+	go func() {
+		if err := http.Serve(listener, http.DefaultServeMux); err != nil {
+			errors.LogErrorInner(context.Background(), err, "failed to start metrics server")
+		}
+	}()
 
 	if err := p.ohm.RemoveHandler(context.Background(), p.tag); err != nil {
 		errors.LogInfo(context.Background(), "failed to remove existing handler")
 	}
 
-	if err := p.ohm.AddHandler(context.Background(), &Outbound{
+	return p.ohm.AddHandler(context.Background(), &Outbound{
 		tag:      p.tag,
 		listener: listener,
-	}); err != nil {
+	})
-		if closeErr := p.Close(); closeErr != nil {
-			errors.LogErrorInner(context.Background(), closeErr, "failed to close metrics server after start failure")
-		}
-		return err
-	}
-
-	return nil
 }
 
 func (p *MetricsHandler) Close() error {
-	var errs []error
+	return nil
-	if p.tcpListener != nil {
-		errs = append(errs, p.tcpListener.Close())
-		p.tcpListener = nil
-	}
-	if p.listener != nil {
-		errs = append(errs, p.listener.Close())
-		p.listener = nil
-	}
-	if p.ohm != nil && p.tag != "" {
-		if err := p.ohm.RemoveHandler(context.Background(), p.tag); err != nil {
-			errors.LogInfo(context.Background(), "failed to remove metrics handler")
-		}
-	}
-	return errors.Combine(errs...)
-}
-
-func (p *MetricsHandler) serve(listener xnet.Listener, handler http.Handler) {
-	if err := http.Serve(listener, handler); err != nil && !isClosedListenerError(err) {
-		errors.LogErrorInner(context.Background(), err, "failed to start metrics server")
-	}
-}
-
-func isClosedListenerError(err error) bool {
-	if err == nil {
-		return true
-	}
-	if stderrors.Is(err, stdnet.ErrClosed) || stderrors.Is(err, http.ErrServerClosed) {
-		return true
-	}
-	errText := err.Error()
-	return strings.Contains(errText, "listen closed") ||
-		strings.Contains(errText, "use of closed network connection")
-}
-
-func (p *MetricsHandler) httpHandler() http.Handler {
-	mux := http.NewServeMux()
-	mux.HandleFunc("/debug/vars", p.handleDebugVars)
-	mux.HandleFunc("/debug/pprof/", pprof.Index)
-	mux.HandleFunc("/debug/pprof/cmdline", pprof.Cmdline)
-	mux.HandleFunc("/debug/pprof/profile", pprof.Profile)
-	mux.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
-	mux.HandleFunc("/debug/pprof/trace", pprof.Trace)
-	return mux
-}
-
-func (p *MetricsHandler) handleDebugVars(w http.ResponseWriter, r *http.Request) {
-	w.Header().Set("Content-Type", "application/json; charset=utf-8")
-	vars := map[string]json.RawMessage{}
-	expvar.Do(func(kv expvar.KeyValue) {
-		value := json.RawMessage(kv.Value.String())
-		if !json.Valid(value) {
-			value = json.RawMessage("null")
-		}
-		vars[kv.Key] = value
-	})
-	vars["stats"] = marshalJSON(p.stats())
-	vars["observatory"] = marshalJSON(p.observatoryStatus())
-
-	payload, err := json.Marshal(vars)
-	if err != nil {
-		http.Error(w, err.Error(), http.StatusInternalServerError)
-		return
-	}
-	w.Write(payload)
-}
-
-func marshalJSON(value interface{}) json.RawMessage {
-	data, err := json.Marshal(value)
-	if err != nil {
-		return json.RawMessage("null")
-	}
-	return data
-}
-
-func (p *MetricsHandler) stats() map[string]map[string]map[string]int64 {
-	resp := map[string]map[string]map[string]int64{
-		"inbound":  {},
-		"outbound": {},
-		"user":     {},
-	}
-	p.statsManager.VisitCounters(func(name string, counter feature_stats.Counter) bool {
-		nameSplit := strings.Split(name, ">>>")
-		if len(nameSplit) < 4 {
-			return true
-		}
-		typeName, tagOrUser, direction := nameSplit[0], nameSplit[1], nameSplit[3]
-		items, found := resp[typeName]
-		if !found {
-			items = map[string]map[string]int64{}
-			resp[typeName] = items
-		}
-		if item, found := items[tagOrUser]; found {
-			item[direction] = counter.Value()
-		} else {
-			items[tagOrUser] = map[string]int64{
-				direction: counter.Value(),
-			}
-		}
-		return true
-	})
-	return resp
-}
-
-func (p *MetricsHandler) observatoryStatus() interface{} {
-	feature := core.MustFromContext(p.ctx).GetFeature(extension.ObservatoryType())
-	if feature == nil {
-		return nil
-	}
-	observatoryFeature := feature.(extension.Observatory)
-	resp := map[string]*observatory.OutboundStatus{}
-	if o, err := observatoryFeature.GetObservation(context.Background()); err != nil {
-		return err
-	} else {
-		for _, x := range o.(*observatory.ObservationResult).GetStatus() {
-			resp[x.OutboundTag] = x
-		}
-	}
-	return resp
 }
 
 func init() {

app/metrics/metrics_test.go

@@ -1,161 +0,0 @@
-package metrics
-
-import (
-	"context"
-	"encoding/json"
-	stdnet "net"
-	"net/http"
-	"net/http/httptest"
-	"testing"
-
-	"github.com/xtls/xray-core/app/dispatcher"
-	"github.com/xtls/xray-core/app/proxyman"
-	_ "github.com/xtls/xray-core/app/proxyman/inbound"
-	_ "github.com/xtls/xray-core/app/proxyman/outbound"
-	appstats "github.com/xtls/xray-core/app/stats"
-	"github.com/xtls/xray-core/common/serial"
-	"github.com/xtls/xray-core/core"
-	feature_outbound "github.com/xtls/xray-core/features/outbound"
-)
-
-func TestMetricsCanRestartInSameProcess(t *testing.T) {
-	for i := 0; i < 2; i++ {
-		server := startMetricsTestServer(t)
-		readMetricsVars(t, server)
-		readMetricsPprof(t, server)
-		if err := server.Close(); err != nil {
-			t.Fatalf("failed to close metrics server: %v", err)
-		}
-	}
-}
-
-func TestMetricsCanRunMultipleInstancesInSameProcess(t *testing.T) {
-	server1 := startMetricsTestServer(t)
-	t.Cleanup(func() {
-		_ = server1.Close()
-	})
-	server2 := startMetricsTestServer(t)
-	t.Cleanup(func() {
-		_ = server2.Close()
-	})
-
-	readMetricsVars(t, server1)
-	readMetricsVars(t, server2)
-}
-
-func TestMetricsListenOnlyWithoutTagDoesNotRegisterOutbound(t *testing.T) {
-	listen := pickMetricsListenAddress(t)
-	server := startMetricsTestServerWithMetricsConfig(t, &Config{
-		Listen: listen,
-	})
-	t.Cleanup(func() {
-		_ = server.Close()
-	})
-
-	response, err := http.Get("http://" + listen + "/debug/vars")
-	if err != nil {
-		t.Fatalf("failed to read listen-only metrics: %v", err)
-	}
-	defer response.Body.Close()
-	if response.StatusCode != http.StatusOK {
-		t.Fatalf("unexpected listen-only metrics status: %d", response.StatusCode)
-	}
-
-	outboundManager := server.GetFeature(feature_outbound.ManagerType()).(feature_outbound.Manager)
-	if handlers := outboundManager.ListHandlers(context.Background()); len(handlers) != 0 {
-		t.Fatalf("listen-only metrics registered outbound handlers: got %d, want 0", len(handlers))
-	}
-}
-
-func startMetricsTestServer(t *testing.T) *core.Instance {
-	return startMetricsTestServerWithMetricsConfig(t, &Config{
-		Tag: "metrics_out",
-	})
-}
-
-func startMetricsTestServerWithMetricsConfig(t *testing.T, metricsConfig *Config) *core.Instance {
-	t.Helper()
-
-	server, err := core.New(metricsTestConfig(metricsConfig))
-	if err != nil {
-		t.Fatalf("failed to create metrics server: %v", err)
-	}
-	if err := server.Start(); err != nil {
-		_ = server.Close()
-		t.Fatalf("failed to start metrics server: %v", err)
-	}
-	return server
-}
-
-func metricsTestConfig(metricsConfig *Config) *core.Config {
-	return &core.Config{
-		App: []*serial.TypedMessage{
-			serial.ToTypedMessage(&dispatcher.Config{}),
-			serial.ToTypedMessage(&proxyman.InboundConfig{}),
-			serial.ToTypedMessage(&proxyman.OutboundConfig{}),
-			serial.ToTypedMessage(&appstats.Config{}),
-			serial.ToTypedMessage(metricsConfig),
-		},
-	}
-}
-
-func pickMetricsListenAddress(t *testing.T) string {
-	t.Helper()
-
-	listener, err := stdnet.Listen("tcp", "127.0.0.1:0")
-	if err != nil {
-		t.Fatalf("failed to pick metrics listen address: %v", err)
-	}
-	defer listener.Close()
-	return listener.Addr().String()
-}
-
-func readMetricsVars(t *testing.T, server *core.Instance) {
-	t.Helper()
-
-	recorder := httptest.NewRecorder()
-	metricsHandler(t, server).httpHandler().ServeHTTP(
-		recorder,
-		httptest.NewRequest(http.MethodGet, "/debug/vars", nil),
-	)
-
-	if recorder.Code != http.StatusOK {
-		t.Fatalf("unexpected metrics vars status: %d", recorder.Code)
-	}
-
-	var payload map[string]interface{}
-	if err := json.NewDecoder(recorder.Body).Decode(&payload); err != nil {
-		t.Fatalf("failed to decode metrics vars: %v", err)
-	}
-	if _, found := payload["stats"]; !found {
-		t.Fatal("metrics vars missing stats")
-	}
-	if _, found := payload["observatory"]; !found {
-		t.Fatal("metrics vars missing observatory")
-	}
-}
-
-func readMetricsPprof(t *testing.T, server *core.Instance) {
-	t.Helper()
-
-	recorder := httptest.NewRecorder()
-	metricsHandler(t, server).httpHandler().ServeHTTP(
-		recorder,
-		httptest.NewRequest(http.MethodGet, "/debug/pprof/goroutine?debug=1", nil),
-	)
-
-	if recorder.Code != http.StatusOK {
-		t.Fatalf("unexpected metrics pprof status: %d", recorder.Code)
-	}
-}
-
-func metricsHandler(t *testing.T, server *core.Instance) *MetricsHandler {
-	t.Helper()
-
-	feature := server.GetFeature((*MetricsHandler)(nil))
-	handler, ok := feature.(*MetricsHandler)
-	if !ok || handler == nil {
-		t.Fatal("metrics handler not registered")
-	}
-	return handler
-}

app/observatory/burst/burstobserver.go

@@ -2,6 +2,7 @@ package burst
 
 import (
 	"context"
+
 	"sync"
 
 	"github.com/xtls/xray-core/app/observatory"
@@ -71,6 +72,7 @@ func (o *Observer) Start() error {
 		o.hp.StartScheduler(func() ([]string, error) {
 			hs, ok := o.ohm.(outbound.HandlerSelector)
 			if !ok {
+
 				return nil, errors.New("outbound.Manager is not a HandlerSelector")
 			}
 

app/observatory/burst/healthping.go

@@ -5,7 +5,6 @@ import (
 	"fmt"
 	"strings"
 	"sync"
-	"sync/atomic"
 	"time"
 
 	"github.com/xtls/xray-core/common/dice"
@@ -25,12 +24,11 @@ type HealthPingSettings struct {
 
 // HealthPing is the health checker for balancers
 type HealthPing struct {
-	ctx           context.Context
+	ctx         context.Context
-	cancelCtx     context.CancelFunc
+	dispatcher  routing.Dispatcher
-	cancelPending atomic.Pointer[context.CancelFunc]
+	access      sync.Mutex
-	dispatcher    routing.Dispatcher
+	ticker      *time.Ticker
-	access        sync.Mutex
+	tickerClose chan struct{}
-	ticker        *time.Ticker
 
 	Settings *HealthPingSettings
 	Results  map[string]*HealthPingRTTS
@@ -64,10 +62,10 @@ func NewHealthPing(ctx context.Context, dispatcher routing.Dispatcher, config *H
 		settings.Destination = "https://connectivitycheck.gstatic.com/generate_204"
 	}
 	if settings.Interval == 0 {
-		settings.Interval = 1 * time.Minute
+		settings.Interval = time.Duration(1) * time.Minute
-	} else if settings.Interval < 10*time.Second {
+	} else if settings.Interval < 10 {
 		errors.LogWarning(ctx, "health check interval is too small, 10s is applied")
-		settings.Interval = 10 * time.Second
+		settings.Interval = time.Duration(10) * time.Second
 	}
 	if settings.SamplingCount <= 0 {
 		settings.SamplingCount = 10
@@ -75,12 +73,10 @@ func NewHealthPing(ctx context.Context, dispatcher routing.Dispatcher, config *H
 	if settings.Timeout <= 0 {
 		// results are saved after all health pings finish,
 		// a larger timeout could possibly makes checks run longer
-		settings.Timeout = 5 * time.Second
+		settings.Timeout = time.Duration(5) * time.Second
 	}
-	ctx, cancel := context.WithCancel(ctx)
 	return &HealthPing{
 		ctx:        ctx,
-		cancelCtx:  cancel,
 		dispatcher: dispatcher,
 		Settings:   settings,
 		Results:    nil,
@@ -94,9 +90,9 @@ func (h *HealthPing) StartScheduler(selector func() ([]string, error)) {
 	}
 	interval := h.Settings.Interval * time.Duration(h.Settings.SamplingCount)
 	ticker := time.NewTicker(interval)
+	tickerClose := make(chan struct{})
 	h.ticker = ticker
-
+	h.tickerClose = tickerClose
-	// init run to get a fast check result
 	go func() {
 		tags, err := selector()
 		if err != nil {
@@ -114,20 +110,13 @@ func (h *HealthPing) StartScheduler(selector func() ([]string, error)) {
 					errors.LogWarning(h.ctx, "error select outbounds for scheduled health check: ", err)
 					return
 				}
-				subCtx, cancel := context.WithCancel(h.ctx)
+				h.doCheck(tags, interval, h.Settings.SamplingCount)
-				old := h.cancelPending.Swap(&cancel)
-				if old != nil {
-					errors.LogDebug(h.ctx, "scheduled health check not finished before next round, canceling previous one")
-					(*old)()
-				}
-				h.doCheck(subCtx, tags, interval, h.Settings.SamplingCount)
-				h.cancelPending.CompareAndSwap(&cancel, nil)
 				h.Cleanup(tags)
 			}()
 			select {
 			case <-ticker.C:
 				continue
-			case <-h.ctx.Done():
+			case <-tickerClose:
 				return
 			}
 		}
@@ -141,7 +130,8 @@ func (h *HealthPing) StopScheduler() {
 	}
 	h.ticker.Stop()
 	h.ticker = nil
-	h.cancelCtx()
+	close(h.tickerClose)
+	h.tickerClose = nil
 }
 
 // Check implements the HealthChecker
@@ -150,7 +140,7 @@ func (h *HealthPing) Check(tags []string) error {
 		return nil
 	}
 	errors.LogInfo(h.ctx, "perform one-time health check for tags ", tags)
-	h.doCheck(h.ctx, tags, 0, 1)
+	h.doCheck(tags, 0, 1)
 	return nil
 }
 
@@ -161,14 +151,13 @@ type rtt struct {
 
 // doCheck performs the 'rounds' amount checks in given 'duration'. You should make
 // sure all tags are valid for current balancer
-// cancel ctx will stop all pending checks
+func (h *HealthPing) doCheck(tags []string, duration time.Duration, rounds int) {
-func (h *HealthPing) doCheck(ctx context.Context, tags []string, duration time.Duration, rounds int) {
 	count := len(tags) * rounds
 	if count == 0 {
 		return
 	}
 	ch := make(chan *rtt, count)
-	timers := make([]*time.Timer, 0, count)
+
 	for _, tag := range tags {
 		handler := tag
 		client := newPingClient(
@@ -183,7 +172,7 @@ func (h *HealthPing) doCheck(ctx context.Context, tags []string, duration time.D
 			if duration > 0 {
 				delay = time.Duration(dice.RollInt63n(int64(duration)))
 			}
-			timers = append(timers, time.AfterFunc(delay, func() {
+			time.AfterFunc(delay, func() {
 				errors.LogDebug(h.ctx, "checking ", handler)
 				delay, err := client.MeasureDelay(h.Settings.HttpMethod)
 				if err == nil {
@@ -211,21 +200,14 @@ func (h *HealthPing) doCheck(ctx context.Context, tags []string, duration time.D
 					handler: handler,
 					value:   rttFailed,
 				}
-			}))
+			})
 		}
 	}
 	for i := 0; i < count; i++ {
-		select {
+		rtt := <-ch
-		case rtt := <-ch:
+		if rtt.value > 0 {
-			if rtt.value > 0 {
+			// should not put results when network is down
-				// should not put results when network is down
+			h.PutResult(rtt.handler, rtt.value)
-				h.PutResult(rtt.handler, rtt.value)
-			}
-		case <-ctx.Done():
-			for _, timer := range timers {
-				timer.Stop()
-			}
-			return
 		}
 	}
 }

app/observatory/burst/healthping_result.go

@@ -59,7 +59,7 @@ func (h *HealthPingRTTS) Put(d time.Duration) {
 	if h.rtts == nil {
 		h.rtts = make([]*pingRTT, h.cap)
 		for i := 0; i < h.cap; i++ {
-			h.rtts[i] = &pingRTT{value: rttUntested}
+			h.rtts[i] = &pingRTT{}
 		}
 		h.idx = -1
 	}
@@ -88,7 +88,7 @@ func (h *HealthPingRTTS) getStatistics() *HealthPingStats {
 	validRTTs := make([]time.Duration, 0)
 	for _, rtt := range h.rtts {
 		switch {
-		case rtt.value == rttUntested || time.Since(rtt.time) > h.validity:
+		case rtt.value == 0 || time.Since(rtt.time) > h.validity:
 			continue
 		case rtt.value == rttFailed:
 			stats.Fail++

app/observatory/observer.go

@@ -78,12 +78,6 @@ func (o *Observer) background() {
 			sleepTime = time.Duration(o.config.ProbeInterval)
 		}
 
-		if len(outbounds) == 0 {
-			errors.LogWarning(o.ctx, "no outbound matches subjectSelector ", o.config.SubjectSelector)
-			time.Sleep(sleepTime)
-			continue
-		}
-
 		if !o.config.EnableConcurrency {
 			sort.Strings(outbounds)
 			for _, v := range outbounds {
@@ -192,7 +186,7 @@ func (o *Observer) probe(outbound string) ProbeResult {
 		return nil
 	})
 	if err != nil {
-		errorMessage := "the outbound " + outbound + " is dead: GET request failed:" + err.Error() + "with outbound handler report underlying connection failed"
+		var errorMessage = "the outbound " + outbound + " is dead: GET request failed:" + err.Error() + "with outbound handler report underlying connection failed"
 		errors.LogInfoInner(o.ctx, errorCollectorForRequest.UnderlyingError(), errorMessage)
 		return ProbeResult{Alive: false, LastErrorReason: errorMessage}
 	}

app/proxyman/command/command.go

@@ -138,7 +138,7 @@ func (s *handlerServer) GetInboundUsers(ctx context.Context, request *GetInbound
 	if len(request.Email) > 0 {
 		return &GetInboundUserResponse{Users: []*protocol.User{protocol.ToProtoUser(um.GetUser(ctx, request.Email))}}, nil
 	}
-	result := make([]*protocol.User, 0, 100)
+	var result = make([]*protocol.User, 0, 100)
 	users := um.GetUsers(ctx)
 	for _, u := range users {
 		result = append(result, protocol.ToProtoUser(u))

app/proxyman/config.pb.go

@@ -330,6 +330,7 @@ type SenderConfig struct {
 	// Send traffic through the given IP. Only IP is allowed.
 	Via               *net.IPOrDomain         `protobuf:"bytes,1,opt,name=via,proto3" json:"via,omitempty"`
 	StreamSettings    *internet.StreamConfig  `protobuf:"bytes,2,opt,name=stream_settings,json=streamSettings,proto3" json:"stream_settings,omitempty"`
+	ProxySettings     *internet.ProxyConfig   `protobuf:"bytes,3,opt,name=proxy_settings,json=proxySettings,proto3" json:"proxy_settings,omitempty"`
 	MultiplexSettings *MultiplexingConfig     `protobuf:"bytes,4,opt,name=multiplex_settings,json=multiplexSettings,proto3" json:"multiplex_settings,omitempty"`
 	ViaCidr           string                  `protobuf:"bytes,5,opt,name=via_cidr,json=viaCidr,proto3" json:"via_cidr,omitempty"`
 	TargetStrategy    internet.DomainStrategy `protobuf:"varint,6,opt,name=target_strategy,json=targetStrategy,proto3,enum=xray.transport.internet.DomainStrategy" json:"target_strategy,omitempty"`
@@ -381,6 +382,13 @@ func (x *SenderConfig) GetStreamSettings() *internet.StreamConfig {
 	return nil
 }
 
+func (x *SenderConfig) GetProxySettings() *internet.ProxyConfig {
+	if x != nil {
+		return x.ProxySettings
+	}
+	return nil
+}
+
 func (x *SenderConfig) GetMultiplexSettings() *MultiplexingConfig {
 	if x != nil {
 		return x.MultiplexSettings
@@ -498,13 +506,14 @@ const file_app_proxyman_config_proto_rawDesc = "" +
 	"\x03tag\x18\x01 \x01(\tR\x03tag\x12M\n" +
 	"\x11receiver_settings\x18\x02 \x01(\v2 .xray.common.serial.TypedMessageR\x10receiverSettings\x12G\n" +
 	"\x0eproxy_settings\x18\x03 \x01(\v2 .xray.common.serial.TypedMessageR\rproxySettings\"\x10\n" +
-	"\x0eOutboundConfig\"\xd6\x02\n" +
+	"\x0eOutboundConfig\"\x9d\x03\n" +
 	"\fSenderConfig\x12-\n" +
 	"\x03via\x18\x01 \x01(\v2\x1b.xray.common.net.IPOrDomainR\x03via\x12N\n" +
-	"\x0fstream_settings\x18\x02 \x01(\v2%.xray.transport.internet.StreamConfigR\x0estreamSettings\x12T\n" +
+	"\x0fstream_settings\x18\x02 \x01(\v2%.xray.transport.internet.StreamConfigR\x0estreamSettings\x12K\n" +
+	"\x0eproxy_settings\x18\x03 \x01(\v2$.xray.transport.internet.ProxyConfigR\rproxySettings\x12T\n" +
 	"\x12multiplex_settings\x18\x04 \x01(\v2%.xray.app.proxyman.MultiplexingConfigR\x11multiplexSettings\x12\x19\n" +
 	"\bvia_cidr\x18\x05 \x01(\tR\aviaCidr\x12P\n" +
-	"\x0ftarget_strategy\x18\x06 \x01(\x0e2'.xray.transport.internet.DomainStrategyR\x0etargetStrategyJ\x04\b\x03\x10\x04\"\xa4\x01\n" +
+	"\x0ftarget_strategy\x18\x06 \x01(\x0e2'.xray.transport.internet.DomainStrategyR\x0etargetStrategy\"\xa4\x01\n" +
 	"\x12MultiplexingConfig\x12\x18\n" +
 	"\aenabled\x18\x01 \x01(\bR\aenabled\x12 \n" +
 	"\vconcurrency\x18\x02 \x01(\x05R\vconcurrency\x12(\n" +
@@ -539,7 +548,8 @@ var file_app_proxyman_config_proto_goTypes = []any{
 	(*net.IPOrDomain)(nil),        // 10: xray.common.net.IPOrDomain
 	(*internet.StreamConfig)(nil), // 11: xray.transport.internet.StreamConfig
 	(*serial.TypedMessage)(nil),   // 12: xray.common.serial.TypedMessage
-	(internet.DomainStrategy)(0),  // 13: xray.transport.internet.DomainStrategy
+	(*internet.ProxyConfig)(nil),  // 13: xray.transport.internet.ProxyConfig
+	(internet.DomainStrategy)(0),  // 14: xray.transport.internet.DomainStrategy
 }
 var file_app_proxyman_config_proto_depIdxs = []int32{
 	7,  // 0: xray.app.proxyman.SniffingConfig.domains_excluded:type_name -> xray.common.geodata.DomainRule
@@ -552,13 +562,14 @@ var file_app_proxyman_config_proto_depIdxs = []int32{
 	12, // 7: xray.app.proxyman.InboundHandlerConfig.proxy_settings:type_name -> xray.common.serial.TypedMessage
 	10, // 8: xray.app.proxyman.SenderConfig.via:type_name -> xray.common.net.IPOrDomain
 	11, // 9: xray.app.proxyman.SenderConfig.stream_settings:type_name -> xray.transport.internet.StreamConfig
-	6,  // 10: xray.app.proxyman.SenderConfig.multiplex_settings:type_name -> xray.app.proxyman.MultiplexingConfig
+	13, // 10: xray.app.proxyman.SenderConfig.proxy_settings:type_name -> xray.transport.internet.ProxyConfig
-	13, // 11: xray.app.proxyman.SenderConfig.target_strategy:type_name -> xray.transport.internet.DomainStrategy
+	6,  // 11: xray.app.proxyman.SenderConfig.multiplex_settings:type_name -> xray.app.proxyman.MultiplexingConfig
-	12, // [12:12] is the sub-list for method output_type
+	14, // 12: xray.app.proxyman.SenderConfig.target_strategy:type_name -> xray.transport.internet.DomainStrategy
-	12, // [12:12] is the sub-list for method input_type
+	13, // [13:13] is the sub-list for method output_type
-	12, // [12:12] is the sub-list for extension type_name
+	13, // [13:13] is the sub-list for method input_type
-	12, // [12:12] is the sub-list for extension extendee
+	13, // [13:13] is the sub-list for extension type_name
-	0,  // [0:12] is the sub-list for field type_name
+	13, // [13:13] is the sub-list for extension extendee
+	0,  // [0:13] is the sub-list for field type_name
 }
 
 func init() { file_app_proxyman_config_proto_init() }

app/proxyman/config.proto

@@ -57,7 +57,7 @@ message SenderConfig {
   // Send traffic through the given IP. Only IP is allowed.
   xray.common.net.IPOrDomain via = 1;
   xray.transport.internet.StreamConfig stream_settings = 2;
-  reserved 3;
+  xray.transport.internet.ProxyConfig proxy_settings = 3;
   MultiplexingConfig multiplex_settings = 4;
   string via_cidr = 5;
   xray.transport.internet.DomainStrategy target_strategy = 6;

app/proxyman/inbound/always.go

@@ -26,7 +26,7 @@ func getStatCounter(v *core.Instance, tag string) (stats.Counter, stats.Counter)
 	if len(tag) > 0 && policy.ForSystem().Stats.InboundUplink {
 		statsManager := v.GetFeature(stats.ManagerType()).(stats.Manager)
 		name := "inbound>>>" + tag + ">>>traffic>>>uplink"
-		c, _ := statsManager.GetOrRegisterCounter(name)
+		c, _ := stats.GetOrRegisterCounter(statsManager, name)
 		if c != nil {
 			uplinkCounter = c
 		}
@@ -34,7 +34,7 @@ func getStatCounter(v *core.Instance, tag string) (stats.Counter, stats.Counter)
 	if len(tag) > 0 && policy.ForSystem().Stats.InboundDownlink {
 		statsManager := v.GetFeature(stats.ManagerType()).(stats.Manager)
 		name := "inbound>>>" + tag + ">>>traffic>>>downlink"
-		c, _ := statsManager.GetOrRegisterCounter(name)
+		c, _ := stats.GetOrRegisterCounter(statsManager, name)
 		if c != nil {
 			downlinkCounter = c
 		}
@@ -57,23 +57,16 @@ func NewAlwaysOnInboundHandler(ctx context.Context, tag string, receiverConfig *
 	if err != nil {
 		return nil, err
 	}
-	src := net.TCPDestination(net.AnyIP, 0)
-	if receiverConfig.Listen != nil {
-		src.Address = receiverConfig.Listen.AsAddress()
-	}
-	if receiverConfig.PortList != nil && len(receiverConfig.PortList.Range) > 0 {
-		src.Port = net.Port(receiverConfig.PortList.Range[0].From)
-	}
-	mss, err := internet.ToMemoryStreamConfig(receiverConfig.StreamSettings)
-	if err != nil {
-		return nil, errors.New("failed to parse stream config").Base(err)
-	}
 
-	newCtx := session.ContextWithInbound(ctx, &session.Inbound{Tag: tag, Source: src})
+	// Set tag and sniffing config in context before creating proxy
-	newCtx = session.ContextWithContent(newCtx, &session.Content{SniffingRequest: sniffingRequest})
+	// This allows proxies like TUN to access these settings
-	newCtx = session.ContextWithStreamSettings(newCtx, mss)
+	ctx = session.ContextWithInbound(ctx, &session.Inbound{Tag: tag})
-
+	if receiverConfig.SniffingSettings != nil {
-	rawProxy, err := common.CreateObject(newCtx, proxyConfig)
+		ctx = session.ContextWithContent(ctx, &session.Content{
+			SniffingRequest: sniffingRequest,
+		})
+	}
+	rawProxy, err := common.CreateObject(ctx, proxyConfig)
 	if err != nil {
 		return nil, err
 	}
@@ -99,6 +92,11 @@ func NewAlwaysOnInboundHandler(ctx context.Context, tag string, receiverConfig *
 		address = net.AnyIP
 	}
 
+	mss, err := internet.ToMemoryStreamConfig(receiverConfig.StreamSettings)
+	if err != nil {
+		return nil, errors.New("failed to parse stream config").Base(err).AtWarning()
+	}
+
 	if receiverConfig.ReceiveOriginalDestination {
 		if mss.SocketSettings == nil {
 			mss.SocketSettings = &internet.SocketConfig{}
@@ -172,12 +170,6 @@ func NewAlwaysOnInboundHandler(ctx context.Context, tag string, receiverConfig *
 
 // Start implements common.Runnable.
 func (h *AlwaysOnInboundHandler) Start() error {
-	// for inbound without worker (TUN)
-	if run, ok := h.proxy.(common.Runnable); ok {
-		if err := run.Start(); err != nil {
-			return errors.New("failed to start proxy").Base(err)
-		}
-	}
 	for _, worker := range h.workers {
 		if err := worker.Start(); err != nil {
 			return err

app/proxyman/inbound/inbound.go

@@ -16,10 +16,10 @@ import (
 
 // Manager manages all inbound handlers.
 type Manager struct {
-	access           sync.RWMutex
+	access          sync.RWMutex
 	untaggedHandlers []inbound.Handler
-	taggedHandlers   map[string]inbound.Handler
+	taggedHandlers  map[string]inbound.Handler
-	running          bool
+	running         bool
 }
 
 // New returns a new Manager for inbound handlers.
@@ -165,7 +165,7 @@ func NewHandler(ctx context.Context, config *core.InboundHandlerConfig) (inbound
 
 	receiverSettings, ok := rawReceiverSettings.(*proxyman.ReceiverConfig)
 	if !ok {
-		return nil, errors.New("not a ReceiverConfig")
+		return nil, errors.New("not a ReceiverConfig").AtError()
 	}
 
 	streamSettings := receiverSettings.StreamSettings

app/proxyman/inbound/worker.go

@@ -142,7 +142,7 @@ func (w *tcpWorker) Start() error {
 		go w.callback(conn)
 	})
 	if err != nil {
-		return errors.New("failed to listen TCP on ", w.port).Base(err)
+		return errors.New("failed to listen TCP on ", w.port).AtWarning().Base(err)
 	}
 	w.hub = hub
 	return nil
@@ -528,7 +528,7 @@ func (w *dsWorker) Start() error {
 		go w.callback(conn)
 	})
 	if err != nil {
-		return errors.New("failed to listen Unix Domain Socket on ", w.address).Base(err)
+		return errors.New("failed to listen Unix Domain Socket on ", w.address).AtWarning().Base(err)
 	}
 	w.hub = hub
 	return nil

app/proxyman/outbound/handler.go

@@ -6,6 +6,7 @@ import (
 	goerrors "errors"
 	"io"
 	"math/big"
+	"os"
 
 	"github.com/xtls/xray-core/common/dice"
 
@@ -15,6 +16,7 @@ import (
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/mux"
 	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/net/cnc"
 	"github.com/xtls/xray-core/common/serial"
 	"github.com/xtls/xray-core/common/session"
 	"github.com/xtls/xray-core/core"
@@ -25,6 +27,8 @@ import (
 	"github.com/xtls/xray-core/transport"
 	"github.com/xtls/xray-core/transport/internet"
 	"github.com/xtls/xray-core/transport/internet/stat"
+	"github.com/xtls/xray-core/transport/internet/tls"
+	"github.com/xtls/xray-core/transport/pipe"
 	"google.golang.org/protobuf/proto"
 )
 
@@ -36,7 +40,7 @@ func getStatCounter(v *core.Instance, tag string) (stats.Counter, stats.Counter)
 	if len(tag) > 0 && policy.ForSystem().Stats.OutboundUplink {
 		statsManager := v.GetFeature(stats.ManagerType()).(stats.Manager)
 		name := "outbound>>>" + tag + ">>>traffic>>>uplink"
-		c, _ := statsManager.GetOrRegisterCounter(name)
+		c, _ := stats.GetOrRegisterCounter(statsManager, name)
 		if c != nil {
 			uplinkCounter = c
 		}
@@ -44,7 +48,7 @@ func getStatCounter(v *core.Instance, tag string) (stats.Counter, stats.Counter)
 	if len(tag) > 0 && policy.ForSystem().Stats.OutboundDownlink {
 		statsManager := v.GetFeature(stats.ManagerType()).(stats.Manager)
 		name := "outbound>>>" + tag + ">>>traffic>>>downlink"
-		c, _ := statsManager.GetOrRegisterCounter(name)
+		c, _ := stats.GetOrRegisterCounter(statsManager, name)
 		if c != nil {
 			downlinkCounter = c
 		}
@@ -60,6 +64,7 @@ type Handler struct {
 	streamSettings  *internet.MemoryStreamConfig
 	proxyConfig     proto.Message
 	proxy           proxy.Outbound
+	outboundManager outbound.Manager
 	mux             *mux.ClientManager
 	xudp            *mux.ClientManager
 	udp443          string
@@ -73,6 +78,7 @@ func NewHandler(ctx context.Context, config *core.OutboundHandlerConfig) (outbou
 	uplinkCounter, downlinkCounter := getStatCounter(v, config.Tag)
 	h := &Handler{
 		tag:             config.Tag,
+		outboundManager: v.GetFeature(outbound.ManagerType()).(outbound.Manager),
 		uplinkCounter:   uplinkCounter,
 		downlinkCounter: downlinkCounter,
 	}
@@ -87,7 +93,7 @@ func NewHandler(ctx context.Context, config *core.OutboundHandlerConfig) (outbou
 			h.senderSettings = s
 			mss, err := internet.ToMemoryStreamConfig(s.StreamSettings)
 			if err != nil {
-				return nil, errors.New("failed to parse stream settings").Base(err)
+				return nil, errors.New("failed to parse stream settings").Base(err).AtWarning()
 			}
 			h.streamSettings = mss
 		default:
@@ -103,10 +109,6 @@ func NewHandler(ctx context.Context, config *core.OutboundHandlerConfig) (outbou
 
 	ctx = session.ContextWithFullHandler(ctx, h)
 
-	if h.streamSettings != nil {
-		ctx = session.ContextWithStreamSettings(ctx, h.streamSettings)
-	}
-
 	rawProxyHandler, err := common.CreateObject(ctx, proxyConfig)
 	if err != nil {
 		return nil, err
@@ -194,6 +196,7 @@ func (h *Handler) Dispatch(ctx context.Context, link *transport.Link) {
 				common.Interrupt(link.Reader)
 				return
 			}
+
 		} else {
 			unchangedDomain := ob.Target.Address.Domain()
 			ob.Target.Address = net.IPAddress(ips[dice.Roll(len(ips))])
@@ -217,7 +220,7 @@ func (h *Handler) Dispatch(ctx context.Context, link *transport.Link) {
 		if ob.Target.Network == net.Network_UDP && ob.Target.Port == 443 {
 			switch h.udp443 {
 			case "reject":
-				test(errors.New("XUDP rejected UDP/443 traffic"))
+				test(errors.New("XUDP rejected UDP/443 traffic").AtInfo())
 				return
 			case "skip":
 				goto out
@@ -266,26 +269,71 @@ func (h *Handler) DestIpAddress() net.IP {
 
 // Dial implements internet.Dialer.
 func (h *Handler) Dial(ctx context.Context, dest net.Destination) (stat.Connection, error) {
-	if h.senderSettings != nil && h.senderSettings.Via != nil {
+	if h.senderSettings != nil {
-		outbounds := session.OutboundsFromContext(ctx)
+
-		ob := outbounds[len(outbounds)-1]
+		if h.senderSettings.ProxySettings.HasTag() {
-		h.SetOutboundGateway(ctx, ob)
+
+			tag := h.senderSettings.ProxySettings.Tag
+			handler := h.outboundManager.GetHandler(tag)
+			if handler != nil {
+				errors.LogDebug(ctx, "proxying to ", tag, " for dest ", dest)
+				outbounds := session.OutboundsFromContext(ctx)
+				ctx = session.ContextWithOutbounds(ctx, append(outbounds, &session.Outbound{
+					Target: dest,
+					Tag:    tag,
+				})) // add another outbound in session ctx
+				opts := pipe.OptionsFromContext(ctx)
+				uplinkReader, uplinkWriter := pipe.New(opts...)
+				downlinkReader, downlinkWriter := pipe.New(opts...)
+
+				go handler.Dispatch(ctx, &transport.Link{Reader: uplinkReader, Writer: downlinkWriter})
+				conn := cnc.NewConnection(cnc.ConnectionInputMulti(uplinkWriter), cnc.ConnectionOutputMulti(downlinkReader))
+
+				if config := tls.ConfigFromStreamSettings(h.streamSettings); config != nil {
+					tlsConfig := config.GetTLSConfig(tls.WithDestination(dest))
+					conn = tls.Client(conn, tlsConfig)
+				}
+
+				return h.getStatCouterConnection(conn), nil
+			}
+
+			errors.LogError(ctx, "failed to get outbound handler with tag: ", tag)
+			return nil, errors.New("failed to get outbound handler with tag: " + tag)
+		}
+
+		if h.senderSettings.Via != nil {
+			outbounds := session.OutboundsFromContext(ctx)
+			ob := outbounds[len(outbounds)-1]
+			h.SetOutboundGateway(ctx, ob)
+		}
+
+	}
+
+	if conn, err := h.getUoTConnection(ctx, dest); err != os.ErrInvalid {
+		return conn, err
 	}
 
 	conn, err := internet.Dial(ctx, dest, h.streamSettings)
 	conn = h.getStatCouterConnection(conn)
+	outbounds := session.OutboundsFromContext(ctx)
+	if outbounds != nil {
+		ob := outbounds[len(outbounds)-1]
+		ob.Conn = conn
+	} else {
+		// for Vision's pre-connect
+	}
 	return conn, err
 }
 
 func (h *Handler) SetOutboundGateway(ctx context.Context, ob *session.Outbound) {
-	if ob.Gateway == nil && h.senderSettings != nil && h.senderSettings.Via != nil &&
+	if ob.Gateway == nil && h.senderSettings != nil && h.senderSettings.Via != nil && !h.senderSettings.ProxySettings.HasTag() && (h.streamSettings.SocketSettings == nil || len(h.streamSettings.SocketSettings.DialerProxy) == 0) {
-		(h.streamSettings.SocketSettings == nil || len(h.streamSettings.SocketSettings.DialerProxy) == 0) {
 		var domain string
 		addr := h.senderSettings.Via.AsAddress()
 		domain = h.senderSettings.Via.GetDomain()
 		switch {
 		case h.senderSettings.ViaCidr != "":
 			ob.Gateway = ParseRandomIP(addr, h.senderSettings.ViaCidr)
+
 		case domain == "origin":
 			if inbound := session.InboundFromContext(ctx); inbound != nil {
 				if inbound.Local.IsValid() && inbound.Local.Address.Family().IsIP() {
@@ -300,9 +348,12 @@ func (h *Handler) SetOutboundGateway(ctx context.Context, ob *session.Outbound)
 					errors.LogDebug(ctx, "use inbound source ip as sendthrough: ", inbound.Source.Address.String())
 				}
 			}
-		default: // case addr.Family().IsDomain():
+		//case addr.Family().IsDomain():
+		default:
 			ob.Gateway = addr
+
 		}
+
 	}
 }
 
@@ -345,6 +396,7 @@ func (h *Handler) ProxySettings() *serial.TypedMessage {
 }
 
 func ParseRandomIP(addr net.Address, prefix string) net.Address {
+
 	_, ipnet, _ := net.ParseCIDR(addr.IP().String() + "/" + prefix)
 
 	ones, bits := ipnet.Mask.Size()

app/proxyman/outbound/handler_test.go

@@ -22,8 +22,8 @@ import (
 )
 
 func TestInterfaces(t *testing.T) {
-	_ = outbound.Handler(new(Handler))
+	_ = (outbound.Handler)(new(Handler))
-	_ = outbound.Manager(new(Manager))
+	_ = (outbound.Manager)(new(Manager))
 }
 
 const xrayKey core.XrayKey = 1
@@ -43,7 +43,7 @@ func TestOutboundWithoutStatCounter(t *testing.T) {
 	}
 
 	v, _ := core.New(config)
-	v.AddFeature(outbound.Manager(new(Manager)))
+	v.AddFeature((outbound.Manager)(new(Manager)))
 	ctx := context.WithValue(context.Background(), xrayKey, v)
 	ctx = session.ContextWithOutbounds(ctx, []*session.Outbound{{}})
 	h, _ := NewHandler(ctx, &core.OutboundHandlerConfig{
@@ -73,7 +73,7 @@ func TestOutboundWithStatCounter(t *testing.T) {
 	}
 
 	v, _ := core.New(config)
-	v.AddFeature(outbound.Manager(new(Manager)))
+	v.AddFeature((outbound.Manager)(new(Manager)))
 	ctx := context.WithValue(context.Background(), xrayKey, v)
 	ctx = session.ContextWithOutbounds(ctx, []*session.Outbound{{}})
 	h, _ := NewHandler(ctx, &core.OutboundHandlerConfig{
@@ -88,6 +88,7 @@ func TestOutboundWithStatCounter(t *testing.T) {
 }
 
 func TestTagsCache(t *testing.T) {
+
 	test_duration := 10 * time.Second
 	threads_num := 50
 	delay := 10 * time.Millisecond

app/proxyman/outbound/outbound.go

@@ -162,6 +162,7 @@ func (m *Manager) ListHandlers(ctx context.Context) []outbound.Handler {
 
 // Select implements outbound.HandlerSelector.
 func (m *Manager) Select(selectors []string) []string {
+
 	key := strings.Join(selectors, ",")
 	if cache, ok := m.tagsCache.Load(key); ok {
 		return cache.([]string)

app/proxyman/outbound/uot.go

@@ -0,0 +1,35 @@
+package outbound
+
+import (
+	"context"
+	"os"
+
+	"github.com/sagernet/sing/common/uot"
+	"github.com/xtls/xray-core/common/errors"
+	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/transport/internet"
+	"github.com/xtls/xray-core/transport/internet/stat"
+)
+
+func (h *Handler) getUoTConnection(ctx context.Context, dest net.Destination) (stat.Connection, error) {
+	if dest.Address == nil {
+		return nil, errors.New("nil destination address")
+	}
+	if !dest.Address.Family().IsDomain() {
+		return nil, os.ErrInvalid
+	}
+	var uotVersion int
+	if dest.Address.Domain() == uot.MagicAddress {
+		uotVersion = uot.Version
+	} else if dest.Address.Domain() == uot.LegacyMagicAddress {
+		uotVersion = uot.LegacyVersion
+	} else {
+		return nil, os.ErrInvalid
+	}
+	packetConn, err := internet.ListenSystemPacket(ctx, &net.UDPAddr{IP: net.AnyIP.IP(), Port: 0}, h.streamSettings.SocketSettings)
+	if err != nil {
+		return nil, errors.New("unable to listen socket").Base(err)
+	}
+	conn := uot.NewServerConn(packetConn, uotVersion)
+	return h.getStatCouterConnection(conn), nil
+}

app/reverse/portal.go

@@ -68,13 +68,13 @@ func (p *Portal) HandleConnection(ctx context.Context, link *transport.Link) err
 	outbounds := session.OutboundsFromContext(ctx)
 	ob := outbounds[len(outbounds)-1]
 	if ob == nil {
-		return errors.New("outbound metadata not found")
+		return errors.New("outbound metadata not found").AtError()
 	}
 
 	if isDomain(ob.Target, p.domain) {
 		muxClient, err := mux.NewClientWorker(*link, mux.ClientStrategy{})
 		if err != nil {
-			return errors.New("failed to create mux client worker").Base(err)
+			return errors.New("failed to create mux client worker").Base(err).AtWarning()
 		}
 
 		worker, err := NewPortalWorker(muxClient)

app/router/balancing.go

@@ -136,7 +136,7 @@ func (b *Balancer) SelectOutbounds() ([]string, error) {
 
 // GetPrincipleTarget implements routing.BalancerPrincipleTarget
 func (r *Router) GetPrincipleTarget(tag string) ([]string, error) {
-	if b, ok := (*r.balancers.Load())[tag]; ok {
+	if b, ok := r.balancers[tag]; ok {
 		if s, ok := b.strategy.(BalancingPrincipleTarget); ok {
 			candidates, err := b.SelectOutbounds()
 			if err != nil {
@@ -151,7 +151,7 @@ func (r *Router) GetPrincipleTarget(tag string) ([]string, error) {
 
 // SetOverrideTarget implements routing.BalancerOverrider
 func (r *Router) SetOverrideTarget(tag, target string) error {
-	if b, ok := (*r.balancers.Load())[tag]; ok {
+	if b, ok := r.balancers[tag]; ok {
 		b.override.Put(target)
 		return nil
 	}
@@ -160,7 +160,7 @@ func (r *Router) SetOverrideTarget(tag, target string) error {
 
 // GetOverrideTarget implements routing.BalancerOverrider
 func (r *Router) GetOverrideTarget(tag string) (string, error) {
-	if b, ok := (*r.balancers.Load())[tag]; ok {
+	if b, ok := r.balancers[tag]; ok {
 		return b.override.Get(), nil
 	}
 	return "", errors.New("cannot find tag")

app/router/balancing_override.go

@@ -2,8 +2,25 @@ package router
 
 import (
 	sync "sync"
+
+	"github.com/xtls/xray-core/common/errors"
 )
 
+func (r *Router) OverrideBalancer(balancer string, target string) error {
+	var b *Balancer
+	for tag, bl := range r.balancers {
+		if tag == balancer {
+			b = bl
+			break
+		}
+	}
+	if b == nil {
+		return errors.New("balancer '", balancer, "' not found")
+	}
+	b.override.Put(target)
+	return nil
+}
+
 type overrideSettings struct {
 	target string
 }

app/router/command/command.go

@@ -58,6 +58,7 @@ func (s *routingServer) AddRule(ctx context.Context, request *AddRuleRequest) (*
 		return &AddRuleResponse{}, bo.AddRule(request.Config, request.ShouldAppend)
 	}
 	return nil, errors.New("unsupported router implementation")
+
 }
 
 func (s *routingServer) RemoveRule(ctx context.Context, request *RemoveRuleRequest) (*RemoveRuleResponse, error) {

app/router/condition.go

@@ -5,7 +5,6 @@ import (
 	"os"
 	"path/filepath"
 	"regexp"
-	"runtime"
 	"slices"
 	"strings"
 
@@ -394,22 +393,3 @@ func (m *ProcessNameMatcher) Apply(ctx routing.Context) bool {
 	}
 	return false
 }
-
-// LocalOSMatcher matches the operating system Xray itself is running on. That never
-// changes while Xray is running, so the result is resolved when the rule is built.
-type LocalOSMatcher struct {
-	matched bool
-}
-
-func NewLocalOSMatcher(names []string) *LocalOSMatcher {
-	return &LocalOSMatcher{
-		matched: slices.ContainsFunc(names, func(name string) bool {
-			return strings.EqualFold(name, runtime.GOOS)
-		}),
-	}
-}
-
-// Apply implements Condition.
-func (m *LocalOSMatcher) Apply(_ routing.Context) bool {
-	return m.matched
-}

app/router/condition_test.go

@@ -2,9 +2,7 @@ package router_test
 
 import (
 	"path/filepath"
-	"runtime"
 	"strconv"
-	"strings"
 	"testing"
 
 	. "github.com/xtls/xray-core/app/router"
@@ -345,31 +343,6 @@ func TestChinaSites(t *testing.T) {
 	}
 }
 
-func TestLocalOSRule(t *testing.T) {
-	otherOS := "plan9"
-	if runtime.GOOS == otherOS {
-		otherOS = "linux"
-	}
-
-	cases := []struct {
-		localOS []string
-		output  bool
-	}{
-		{localOS: []string{runtime.GOOS}, output: true},
-		{localOS: []string{otherOS}, output: false},
-		{localOS: []string{otherOS, runtime.GOOS}, output: true},
-		{localOS: []string{strings.ToUpper(runtime.GOOS)}, output: true},
-	}
-
-	for _, test := range cases {
-		cond, err := (&RoutingRule{LocalOs: test.localOS}).BuildCondition()
-		common.Must(err)
-		if got := cond.Apply(withBackground()); got != test.output {
-			t.Errorf("for localOS %v on %s: expected %v, got %v", test.localOS, runtime.GOOS, test.output, got)
-		}
-	}
-}
-
 func BenchmarkMphDomainMatcher(b *testing.B) {
 	b.Setenv("xray.location.asset", filepath.Join("..", "..", "resources"))
 	rules, err := geodata.ParseDomainRules([]string{"geosite:cn"}, geodata.Domain_Substr)

app/router/config.go

@@ -33,10 +33,6 @@ func (r *Rule) Apply(ctx routing.Context) bool {
 func (rr *RoutingRule) BuildCondition() (Condition, error) {
 	conds := NewConditionChan()
 
-	if len(rr.LocalOs) > 0 {
-		conds.Add(NewLocalOSMatcher(rr.LocalOs))
-	}
-
 	if len(rr.InboundTag) > 0 {
 		conds.Add(NewInboundTagMatcher(rr.InboundTag))
 	}
@@ -115,7 +111,7 @@ func (rr *RoutingRule) BuildCondition() (Condition, error) {
 	}
 
 	if conds.Len() == 0 {
-		return nil, errors.New("this rule has no effective fields")
+		return nil, errors.New("this rule has no effective fields").AtWarning()
 	}
 
 	return conds, nil
@@ -145,7 +141,7 @@ func (br *BalancingRule) Build(ohm outbound.Manager, dispatcher routing.Dispatch
 		}
 		s, ok := i.(*StrategyLeastLoadConfig)
 		if !ok {
-			return nil, errors.New("not a StrategyLeastLoadConfig")
+			return nil, errors.New("not a StrategyLeastLoadConfig").AtError()
 		}
 		leastLoadStrategy := NewLeastLoadStrategy(s)
 		return &Balancer{

app/router/config.pb.go

@@ -107,10 +107,8 @@ type RoutingRule struct {
 	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"`
 	Webhook        *WebhookConfig `protobuf:"bytes,22,opt,name=webhook,proto3" json:"webhook,omitempty"`
-	// List of operating systems for matching the one Xray itself is running on.
+	unknownFields  protoimpl.UnknownFields
-	LocalOs       []string `protobuf:"bytes,23,rep,name=local_os,json=localOs,proto3" json:"local_os,omitempty"`
+	sizeCache      protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-	sizeCache     protoimpl.SizeCache
 }
 
 func (x *RoutingRule) Reset() {
@@ -280,13 +278,6 @@ func (x *RoutingRule) GetWebhook() *WebhookConfig {
 	return nil
 }
 
-func (x *RoutingRule) GetLocalOs() []string {
-	if x != nil {
-		return x.LocalOs
-	}
-	return nil
-}
-
 type isRoutingRule_TargetTag interface {
 	isRoutingRule_TargetTag()
 }
@@ -587,10 +578,8 @@ type Config struct {
 	DomainStrategy Config_DomainStrategy  `protobuf:"varint,1,opt,name=domain_strategy,json=domainStrategy,proto3,enum=xray.app.router.Config_DomainStrategy" json:"domain_strategy,omitempty"`
 	Rule           []*RoutingRule         `protobuf:"bytes,2,rep,name=rule,proto3" json:"rule,omitempty"`
 	BalancingRule  []*BalancingRule       `protobuf:"bytes,3,rep,name=balancing_rule,json=balancingRule,proto3" json:"balancing_rule,omitempty"`
-	// Absolute path to the Lua routing script.
+	unknownFields  protoimpl.UnknownFields
-	Script        string `protobuf:"bytes,4,opt,name=script,proto3" json:"script,omitempty"`
+	sizeCache      protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-	sizeCache     protoimpl.SizeCache
 }
 
 func (x *Config) Reset() {
@@ -644,18 +633,11 @@ func (x *Config) GetBalancingRule() []*BalancingRule {
 	return nil
 }
 
-func (x *Config) GetScript() string {
-	if x != nil {
-		return x.Script
-	}
-	return ""
-}
-
 var File_app_router_config_proto protoreflect.FileDescriptor
 
 const file_app_router_config_proto_rawDesc = "" +
 	"\n" +
-	"\x17app/router/config.proto\x12\x0fxray.app.router\x1a!common/serial/typed_message.proto\x1a\x15common/net/port.proto\x1a\x18common/net/network.proto\x1a\x1bcommon/geodata/geodat.proto\"\xdc\a\n" +
+	"\x17app/router/config.proto\x12\x0fxray.app.router\x1a!common/serial/typed_message.proto\x1a\x15common/net/port.proto\x1a\x18common/net/network.proto\x1a\x1bcommon/geodata/geodat.proto\"\xc1\a\n" +
 	"\vRoutingRule\x12\x12\n" +
 	"\x03tag\x18\x01 \x01(\tH\x00R\x03tag\x12%\n" +
 	"\rbalancing_tag\x18\f \x01(\tH\x00R\fbalancingTag\x12\x19\n" +
@@ -679,8 +661,7 @@ const file_app_router_config_proto_rawDesc = "" +
 	"\x0flocal_port_list\x18\x12 \x01(\v2\x19.xray.common.net.PortListR\rlocalPortList\x12C\n" +
 	"\x10vless_route_list\x18\x14 \x01(\v2\x19.xray.common.net.PortListR\x0evlessRouteList\x12\x18\n" +
 	"\aprocess\x18\x15 \x03(\tR\aprocess\x128\n" +
-	"\awebhook\x18\x16 \x01(\v2\x1e.xray.app.router.WebhookConfigR\awebhook\x12\x19\n" +
+	"\awebhook\x18\x16 \x01(\v2\x1e.xray.app.router.WebhookConfigR\awebhook\x1a=\n" +
-	"\blocal_os\x18\x17 \x03(\tR\alocalOs\x1a=\n" +
 	"\x0fAttributesEntry\x12\x10\n" +
 	"\x03key\x18\x01 \x01(\tR\x03key\x12\x14\n" +
 	"\x05value\x18\x02 \x01(\tR\x05value:\x028\x01B\f\n" +
@@ -708,12 +689,11 @@ const file_app_router_config_proto_rawDesc = "" +
 	"\tbaselines\x18\x03 \x03(\x03R\tbaselines\x12\x1a\n" +
 	"\bexpected\x18\x04 \x01(\x05R\bexpected\x12\x16\n" +
 	"\x06maxRTT\x18\x05 \x01(\x03R\x06maxRTT\x12\x1c\n" +
-	"\ttolerance\x18\x06 \x01(\x02R\ttolerance\"\xae\x02\n" +
+	"\ttolerance\x18\x06 \x01(\x02R\ttolerance\"\x96\x02\n" +
 	"\x06Config\x12O\n" +
 	"\x0fdomain_strategy\x18\x01 \x01(\x0e2&.xray.app.router.Config.DomainStrategyR\x0edomainStrategy\x120\n" +
 	"\x04rule\x18\x02 \x03(\v2\x1c.xray.app.router.RoutingRuleR\x04rule\x12E\n" +
-	"\x0ebalancing_rule\x18\x03 \x03(\v2\x1e.xray.app.router.BalancingRuleR\rbalancingRule\x12\x16\n" +
+	"\x0ebalancing_rule\x18\x03 \x03(\v2\x1e.xray.app.router.BalancingRuleR\rbalancingRule\"B\n" +
-	"\x06script\x18\x04 \x01(\tR\x06script\"B\n" +
 	"\x0eDomainStrategy\x12\b\n" +
 	"\x04AsIs\x10\x00\x12\x10\n" +
 	"\fIpIfNonMatch\x10\x02\x12\x0e\n" +

app/router/config.proto

@@ -56,9 +56,6 @@ message RoutingRule {
 
   repeated string process = 21;
   WebhookConfig webhook = 22;
-
-  // List of operating systems for matching the one Xray itself is running on.
-  repeated string local_os = 23;
 }
 
 message WebhookConfig {
@@ -110,6 +107,4 @@ message Config {
   DomainStrategy domain_strategy = 1;
   repeated RoutingRule rule = 2;
   repeated BalancingRule balancing_rule = 3;
-  // Absolute path to the Lua routing script.
-  string script = 4;
 }

app/router/lua.go

@@ -1,167 +0,0 @@
-package router
-
-import (
-	"runtime"
-	"strings"
-
-	"github.com/xtls/xray-core/common/errors"
-	xlua "github.com/xtls/xray-core/common/lua"
-	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/features/routing"
-	lua "github.com/yuin/gopher-lua"
-)
-
-const (
-	luaContextType    = "xray.router.Context"
-	luaAttributesType = "xray.router.Attributes"
-)
-
-// RegisterLua makes xray.router available to routing scripts.
-func (r *Router) RegisterLua(L *lua.LState) {
-	registerLuaContext(L)
-
-	L.PreloadModule("xray.router", func(L *lua.LState) int {
-		module := L.NewTable()
-
-		module.RawSetString("NetworkUnknown", lua.LNumber(net.Network_Unknown))
-		module.RawSetString("NetworkTCP", lua.LNumber(net.Network_TCP))
-		module.RawSetString("NetworkUDP", lua.LNumber(net.Network_UDP))
-		module.RawSetString("NetworkUNIX", lua.LNumber(net.Network_UNIX))
-		module.RawSetString("LocalOS", lua.LString(runtime.GOOS))
-
-		module.RawSetString("PickOutbound", L.NewFunction(func(L *lua.LState) int {
-			tag, ok := L.Get(2).(lua.LString)
-			if !ok {
-				L.ArgError(2, "balancer tag must be a string")
-				return 0
-			}
-			balancer, found := (*r.balancers.Load())[string(tag)]
-			if !found {
-				xlua.PushNil(L)
-				xlua.PushError(L, errors.New("balancer ", tag, " not found"))
-				return 2
-			}
-			outboundTag, err := balancer.PickOutbound()
-			xlua.PushString(L, outboundTag)
-			xlua.PushError(L, err)
-			return 2
-		}))
-
-		module.RawSetString("FindProcess", L.NewFunction(func(L *lua.LState) int {
-			pid, name, path, err := findProcess(checkLuaContext(L), net.FindProcess)
-			xlua.PushNumber(L, pid)
-			xlua.PushString(L, name)
-			xlua.PushString(L, path)
-			xlua.PushError(L, err)
-			return 4
-		}))
-
-		L.Push(module)
-		return 1
-	})
-}
-
-func registerLuaContext(L *lua.LState) {
-	attributes := L.NewTypeMetatable(luaAttributesType)
-	L.SetField(attributes, "__index", L.NewFunction(func(L *lua.LState) int {
-		values := L.CheckUserData(1).Value.(map[string]string)
-		key := L.CheckString(2)
-		if value, found := values[key]; found {
-			xlua.PushString(L, value)
-		} else {
-			xlua.PushNil(L)
-		}
-		return 1
-	}))
-	methods := L.NewTable()
-	L.SetFuncs(methods, map[string]lua.LGFunction{
-		"GetSourceIPs": func(L *lua.LState) int {
-			xlua.PushUserData(L, checkLuaContext(L).GetSourceIPs())
-			return 1
-		},
-		"GetTargetIPs": func(L *lua.LState) int {
-			xlua.PushUserData(L, checkLuaContext(L).GetTargetIPs())
-			return 1
-		},
-		"GetLocalIPs": func(L *lua.LState) int {
-			xlua.PushUserData(L, checkLuaContext(L).GetLocalIPs())
-			return 1
-		},
-		"GetAttributes": func(L *lua.LState) int {
-			values := L.NewUserData()
-			values.Value = checkLuaContext(L).GetAttributes()
-			L.SetMetatable(values, attributes)
-			L.Push(values)
-			return 1
-		},
-	})
-	L.SetField(L.NewTypeMetatable(luaContextType), "__index", methods)
-}
-
-func checkLuaContext(L *lua.LState) routing.Context {
-	ctx, ok := L.CheckUserData(1).Value.(routing.Context)
-	if !ok {
-		L.ArgError(1, "routing context expected")
-	}
-	return ctx
-}
-
-// callLuaHook invokes HandleRoute in the supplied state.
-func (r *Router) callLuaHook(L *lua.LState, routeCtx routing.Context) (string, string, error) {
-	top := L.GetTop()
-	defer L.SetTop(top)
-	fn := L.GetGlobal("HandleRoute")
-	if fn.Type() != lua.LTFunction {
-		return "", "", errors.New("routing script must define HandleRoute(...)")
-	}
-	value := L.NewUserData()
-	value.Value = routeCtx
-	L.SetMetatable(value, L.GetTypeMetatable(luaContextType))
-	if err := L.CallByParam(lua.P{Fn: fn, NRet: 3, Protect: true},
-		value, lua.LString(routeCtx.GetInboundTag()), lua.LNumber(routeCtx.GetSourcePort()),
-		lua.LNumber(routeCtx.GetTargetPort()), lua.LNumber(routeCtx.GetLocalPort()),
-		lua.LString(strings.ToLower(routeCtx.GetTargetDomain())), lua.LNumber(routeCtx.GetNetwork()),
-		lua.LString(routeCtx.GetProtocol()), lua.LString(routeCtx.GetUser()),
-		lua.LNumber(routeCtx.GetVlessRoute()), lua.LBool(routeCtx.GetSkipDNSResolve())); err != nil {
-		return "", "", err
-	}
-	return readLuaRouteResult(L.Get(-3), L.Get(-2), L.Get(-1))
-}
-
-func readLuaRouteResult(tagValue, ruleValue, errorValue lua.LValue) (string, string, error) {
-	if err := xlua.ReadError(errorValue, "routing script error must be an error or string"); err != nil {
-		return "", "", err
-	}
-	tag, err := xlua.ReadOptionalString(tagValue, "routing script outboundTag must be a string or nil")
-	if err != nil || tag == "" {
-		return "", "", err
-	}
-	ruleTag, err := xlua.ReadOptionalString(ruleValue, "routing script ruleTag must be a string")
-	if err != nil {
-		return "", "", err
-	}
-	return tag, ruleTag, nil
-}
-
-type processFinder func(string, string, uint16, string, uint16) (int, string, string, error)
-
-func findProcess(ctx routing.Context, finder processFinder) (int, string, string, error) {
-	sources := ctx.GetSourceIPs()
-	if len(sources) == 0 {
-		return 0, "", "", errors.New("process lookup requires a source IP")
-	}
-	var network string
-	switch ctx.GetNetwork() {
-	case net.Network_TCP:
-		network = "tcp"
-	case net.Network_UDP:
-		network = "udp"
-	default:
-		return 0, "", "", errors.New("process lookup requires TCP or UDP")
-	}
-	targetIP, targetPort := "", uint16(0)
-	if targets := ctx.GetTargetIPs(); len(targets) > 0 {
-		targetIP, targetPort = targets[0].String(), uint16(ctx.GetTargetPort())
-	}
-	return finder(network, sources[0].String(), uint16(ctx.GetSourcePort()), targetIP, targetPort)
-}

app/router/lua_test.go

@@ -1,300 +0,0 @@
-package router
-
-import (
-	"context"
-	go_errors "errors"
-	"runtime"
-	"strings"
-	"testing"
-
-	"github.com/xtls/xray-core/common/geodata"
-	"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/features/routing"
-	routing_session "github.com/xtls/xray-core/features/routing/session"
-	lua "github.com/yuin/gopher-lua"
-)
-
-type luaRouteTestContext struct {
-	*routing_session.Context
-	sourceIPs, targetIPs, localIPs []net.IP
-}
-
-func (c *luaRouteTestContext) GetSourceIPs() []net.IP { return c.sourceIPs }
-func (c *luaRouteTestContext) GetTargetIPs() []net.IP { return c.targetIPs }
-func (c *luaRouteTestContext) GetLocalIPs() []net.IP  { return c.localIPs }
-
-func newLuaRouteTestContext() *luaRouteTestContext {
-	return &luaRouteTestContext{
-		Context: &routing_session.Context{
-			Inbound: &session.Inbound{
-				Tag: "in", VlessRoute: 4321,
-				Source: net.TCPDestination(net.LocalHostIP, 1234),
-				Local:  net.TCPDestination(net.LocalHostIP, 5678),
-				User:   &protocol.MemoryUser{Email: "user@example.com"},
-			},
-			Outbound: &session.Outbound{
-				Target:      net.TCPDestination(net.LocalHostIP, 443),
-				RouteTarget: net.TCPDestination(net.DomainAddress("MiXeD.Example."), 443),
-			},
-			Content: &session.Content{
-				Protocol: "tls", Attributes: map[string]string{"key": "value"}, SkipDNSResolve: true,
-			},
-		},
-		sourceIPs: []net.IP{{127, 0, 0, 2}},
-		targetIPs: []net.IP{{127, 0, 0, 3}},
-		localIPs:  []net.IP{{127, 0, 0, 1}},
-	}
-}
-
-func newLuaRouterState(t *testing.T, script string) (*Router, *lua.LState) {
-	t.Helper()
-	r := new(Router)
-	if err := r.Init(context.Background(), &Config{}, nil, nil, nil); err != nil {
-		t.Fatal(err)
-	}
-	L := lua.NewState()
-	t.Cleanup(L.Close)
-	r.RegisterLua(L)
-	geodata.RegisterLua(L)
-	if err := L.DoString(script); err != nil {
-		t.Fatal(err)
-	}
-	return r, L
-}
-
-func TestLuaRouteBinding(t *testing.T) {
-	r, L := newLuaRouterState(t, `
-local router = require("xray.router")
-local matcher = require("xray.geodata").BuildIPMatcher("127.0.0.0/8")
-assert(router.NetworkUnknown == 0 and router.NetworkTCP == 2)
-assert(router.NetworkUDP == 3 and router.NetworkUNIX == 4)
-assert(router.BuildIPMatcher == nil and router.BuildDomainMatcher == nil)
-function HandleRoute(ctx, inboundTag, sourcePort, targetPort, localPort,
-    targetDomain, network, protocol, user, vlessRoute, skipDNSResolve, ...)
-    assert(select("#", ...) == 0)
-    assert(inboundTag == "in" and sourcePort == 1234 and targetPort == 443 and localPort == 5678)
-    assert(targetDomain == "mixed.example." and network == router.NetworkTCP)
-    assert(protocol == "tls" and user == "user@example.com" and vlessRoute == 4321 and skipDNSResolve)
-    assert(ctx.GetNetwork == nil and ctx.Context == nil)
-    savedContext = ctx
-    sourceIPs, targetIPs, localIPs = ctx:GetSourceIPs(), ctx:GetTargetIPs(), ctx:GetLocalIPs()
-    attributes = ctx:GetAttributes()
-    assert(matcher:AnyMatch(sourceIPs) and matcher:AnyMatch(targetIPs) and matcher:AnyMatch(localIPs))
-    assert(attributes.key == "value" and attributes.missing == nil)
-    assert(not pcall(function() attributes.key = "changed" end))
-    return "out", "rule"
-end`)
-
-	ctx := newLuaRouteTestContext()
-	tag, rule, err := r.callLuaHook(L, ctx)
-	if err != nil || tag != "out" || rule != "rule" {
-		t.Fatalf("hook = %q, %q, %v", tag, rule, err)
-	}
-	if L.GetGlobal("savedContext").(*lua.LUserData).Value != ctx {
-		t.Fatal("routing context was copied")
-	}
-	for _, tc := range []struct {
-		name string
-		want []net.IP
-	}{
-		{"sourceIPs", ctx.sourceIPs},
-		{"targetIPs", ctx.targetIPs},
-		{"localIPs", ctx.localIPs},
-	} {
-		got := L.GetGlobal(tc.name).(*lua.LUserData).Value.([]net.IP)
-		if &got[0] != &tc.want[0] {
-			t.Fatalf("%s storage was copied", tc.name)
-		}
-	}
-	ctx.Content.Attributes["key"] = "updated"
-	L.SetGlobal("expectedOS", lua.LString(runtime.GOOS))
-	if err := L.DoString(`
-assert(attributes.key == "updated")
-assert(require("xray.router").LocalOS == expectedOS)`); err != nil {
-		t.Fatal(err)
-	}
-}
-
-func TestLuaRouteResult(t *testing.T) {
-	nativeErr := go_errors.New("native failure")
-	for _, tc := range []struct {
-		name, body, tag, rule, wantErr string
-		native                         bool
-	}{
-		{name: "route", body: `return "out", "rule"`, tag: "out", rule: "rule"},
-		{name: "no match", body: `return nil`},
-		{name: "empty tag", body: `return ""`},
-		{name: "no match ignores rule", body: `return nil, false`},
-		{name: "empty tag ignores rule", body: `return "", false`},
-		{name: "missing rule", body: `return "out"`, tag: "out"},
-		{name: "invalid tag", body: `return 1`, wantErr: "outboundTag"},
-		{name: "invalid rule", body: `return "out", false`, wantErr: "ruleTag"},
-		{name: "string error", body: `return nil, nil, "script failure"`, wantErr: "script failure"},
-		{name: "native error", body: `return nil, nil, nativeError`, native: true},
-		{name: "error overrides invalid tags", body: `return false, false, nativeError`, native: true},
-		{name: "invalid error", body: `return "out", "rule", false`, wantErr: "error or string"},
-		{name: "wrong error userdata", body: `return "out", "rule", wrongError`, wantErr: "error or string"},
-		{name: "runtime error", body: `error("runtime failure")`, wantErr: "runtime failure"},
-	} {
-		t.Run(tc.name, func(t *testing.T) {
-			r, L := newLuaRouterState(t, "function HandleRoute() "+tc.body+" end")
-			value := L.NewUserData()
-			value.Value = nativeErr
-			L.SetGlobal("nativeError", value)
-			wrong := L.NewUserData()
-			wrong.Value = "not a native error"
-			L.SetGlobal("wrongError", wrong)
-			L.Push(lua.LTrue)
-
-			tag, rule, err := r.callLuaHook(L, &routing_session.Context{})
-			if tag != tc.tag || rule != tc.rule {
-				t.Fatalf("result = %q, %q, %v", tag, rule, err)
-			}
-			switch {
-			case tc.native:
-				if err != nativeErr {
-					t.Fatalf("error = %v, want original error", err)
-				}
-			case tc.wantErr != "":
-				if err == nil || !strings.Contains(err.Error(), tc.wantErr) {
-					t.Fatalf("error = %v, want %q", err, tc.wantErr)
-				}
-			case err != nil:
-				t.Fatal(err)
-			}
-			if L.GetTop() != 1 || L.Get(1) != lua.LTrue {
-				t.Fatal("hook did not restore the stack")
-			}
-		})
-	}
-}
-
-func TestLuaRouteCancellation(t *testing.T) {
-	r, L := newLuaRouterState(t, `function HandleRoute() while true do end end`)
-	ctx, cancel := context.WithCancel(context.Background())
-	cancel()
-	L.SetContext(ctx)
-	if _, _, err := r.callLuaHook(L, &routing_session.Context{}); err == nil {
-		t.Fatal("CallLuaHook did not stop after context cancellation")
-	}
-	if L.Context() != ctx || L.GetTop() != 0 {
-		t.Fatal("CallLuaHook did not restore the Lua state")
-	}
-}
-
-func TestFindProcess(t *testing.T) {
-	for _, tc := range []struct {
-		name, network, target string
-		targetPort            uint16
-		modify                func(*luaRouteTestContext)
-		wantErr               bool
-	}{
-		{name: "TCP", network: "tcp", target: "127.0.0.3", targetPort: 443},
-		{name: "UDP", network: "udp", target: "127.0.0.3", targetPort: 443, modify: func(c *luaRouteTestContext) {
-			c.Outbound.Target.Network = net.Network_UDP
-		}},
-		{name: "domain target", network: "tcp", modify: func(c *luaRouteTestContext) { c.targetIPs = nil }},
-		{name: "missing source", modify: func(c *luaRouteTestContext) { c.sourceIPs = nil }, wantErr: true},
-		{name: "unsupported network", modify: func(c *luaRouteTestContext) {
-			c.Outbound.Target.Network = net.Network_UNIX
-		}, wantErr: true},
-	} {
-		t.Run(tc.name, func(t *testing.T) {
-			ctx := newLuaRouteTestContext()
-			if tc.modify != nil {
-				tc.modify(ctx)
-			}
-			called := false
-			pid, name, path, err := findProcess(ctx, func(network, source string, sourcePort uint16, target string, targetPort uint16) (int, string, string, error) {
-				called = true
-				if network != tc.network || source != "127.0.0.2" || sourcePort != 1234 || target != tc.target || targetPort != tc.targetPort {
-					t.Fatalf("endpoints = %s %s:%d -> %s:%d", network, source, sourcePort, target, targetPort)
-				}
-				return 42, "process", "/path/process", nil
-			})
-			if tc.wantErr {
-				if err == nil || called {
-					t.Fatalf("findProcess = %d, %q, %q, %v", pid, name, path, err)
-				}
-				return
-			}
-			if err != nil || !called || pid != 42 || name != "process" || path != "/path/process" {
-				t.Fatalf("findProcess = %d, %q, %q, %v", pid, name, path, err)
-			}
-		})
-	}
-}
-
-// BenchmarkLuaRouteHookCall isolates a preloaded Lua hook and its routing context bridge.
-// The direct case runs an equivalent native routing rule.
-func BenchmarkLuaRouteHookCall(b *testing.B) {
-	r := new(Router)
-	if err := r.Init(context.Background(), &Config{Rule: []*RoutingRule{{
-		TargetTag:  &RoutingRule_Tag{Tag: "out"},
-		RuleTag:    "rule",
-		InboundTag: []string{"in"},
-		Networks:   []net.Network{net.Network_TCP},
-		Ip: []*geodata.IPRule{{
-			Value: &geodata.IPRule_Custom{Custom: &geodata.CIDRRule{
-				Cidr: &geodata.CIDR{Ip: []byte{127, 0, 0, 0}, Prefix: 8},
-			}},
-		}},
-	}}}, nil, nil, nil); err != nil {
-		b.Fatal(err)
-	}
-	L := lua.NewState()
-	defer L.Close()
-	r.RegisterLua(L)
-	geodata.RegisterLua(L)
-	if err := L.DoString(`
-local router = require("xray.router")
-local matcher = require("xray.geodata").BuildIPMatcher("127.0.0.0/8")
-function HandleRoute(ctx, inboundTag, sourcePort, targetPort, localPort,
-    targetDomain, network, protocol, user, vlessRoute, skipDNSResolve)
-    if inboundTag == "in" and network == router.NetworkTCP and matcher:AnyMatch(ctx:GetTargetIPs()) then
-        return "out", "rule"
-    end
-end
-`); err != nil {
-		b.Fatal(err)
-	}
-
-	L.SetContext(context.Background())
-	routeCtx := newLuaRouteTestContext()
-	for _, benchmark := range []struct {
-		name  string
-		route func() (string, string, error)
-	}{
-		{"direct", func() (string, string, error) {
-			route, err := r.PickRoute(routeCtx)
-			if err != nil {
-				return "", "", err
-			}
-			return route.GetOutboundTag(), route.GetRuleTag(), nil
-		}},
-		{"lua_hook", func() (string, string, error) {
-			return r.callLuaHook(L, routeCtx)
-		}},
-	} {
-		b.Run(benchmark.name, func(b *testing.B) {
-			b.ReportAllocs()
-			b.ResetTimer()
-			var tag, rule string
-			var err error
-			for i := 0; i < b.N; i++ {
-				tag, rule, err = benchmark.route()
-				if err != nil {
-					b.Fatal(err)
-				}
-			}
-			b.StopTimer()
-			if tag != "out" || rule != "rule" {
-				b.Fatalf("route() = %q, %q; want out, rule", tag, rule)
-			}
-		})
-	}
-}
-
-var _ routing.Context = (*luaRouteTestContext)(nil)

app/router/router.go

@@ -2,9 +2,7 @@ package router
 
 import (
 	"context"
-	"maps"
 	"sync"
-	"sync/atomic"
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
@@ -19,10 +17,8 @@ import (
 // Router is an implementation of routing.Router.
 type Router struct {
 	domainStrategy Config_DomainStrategy
-	rules          atomic.Pointer[[]*Rule]
+	rules          []*Rule
-	scriptPath     string
+	balancers      map[string]*Balancer
-	script         *scriptEngine
-	balancers      atomic.Pointer[map[string]*Balancer]
 	dns            dns.Client
 
 	ctx        context.Context
@@ -42,23 +38,61 @@ type Route struct {
 // Init initializes the Router.
 func (r *Router) Init(ctx context.Context, config *Config, d dns.Client, ohm outbound.Manager, dispatcher routing.Dispatcher) error {
 	r.domainStrategy = config.DomainStrategy
-	r.scriptPath = config.Script
 	r.dns = d
 	r.ctx = ctx
 	r.ohm = ohm
 	r.dispatcher = dispatcher
 
-	r.rules.Store(new([]*Rule))
+	r.balancers = make(map[string]*Balancer, len(config.BalancingRule))
-	r.balancers.Store(&map[string]*Balancer{})
+	for _, rule := range config.BalancingRule {
-	return r.ReloadRules(config, false)
+		balancer, err := rule.Build(ohm, dispatcher)
+		if err != nil {
+			return err
+		}
+		balancer.InjectContext(ctx)
+		r.balancers[rule.Tag] = balancer
+	}
+
+	r.rules = make([]*Rule, 0, len(config.Rule))
+	for _, rule := range config.Rule {
+		cond, err := rule.BuildCondition()
+		if err != nil {
+			r.closeWebhooks()
+			return err
+		}
+		rr := &Rule{
+			Condition: cond,
+			Tag:       rule.GetTag(),
+			RuleTag:   rule.GetRuleTag(),
+		}
+		if wh := rule.GetWebhook(); wh != nil {
+			notifier, err := NewWebhookNotifier(wh)
+			if err != nil {
+				r.closeWebhooks()
+				return err
+			}
+			rr.Webhook = notifier
+		}
+		btag := rule.GetBalancingTag()
+		if len(btag) > 0 {
+			brule, found := r.balancers[btag]
+			if !found {
+				if rr.Webhook != nil {
+					rr.Webhook.Close()
+				}
+				r.closeWebhooks()
+				return errors.New("balancer ", btag, " not found")
+			}
+			rr.Balancer = brule
+		}
+		r.rules = append(r.rules, rr)
+	}
+
+	return nil
 }
 
 // PickRoute implements routing.Router.
 func (r *Router) PickRoute(ctx routing.Context) (routing.Route, error) {
-	if r.script != nil {
-		return r.script.pickRoute(ctx)
-	}
-
 	originalCtx := ctx
 	rule, ctx, err := r.pickRouteInternal(ctx)
 	if err != nil {
@@ -76,6 +110,7 @@ func (r *Router) PickRoute(ctx routing.Context) (routing.Route, error) {
 
 // AddRule implements routing.Router.
 func (r *Router) AddRule(config *serial.TypedMessage, shouldAppend bool) error {
+
 	inst, err := config.GetInstance()
 	if err != nil {
 		return err
@@ -90,22 +125,18 @@ func (r *Router) ReloadRules(config *Config, shouldAppend bool) error {
 	r.mu.Lock()
 	defer r.mu.Unlock()
 
-	oldRules := *r.rules.Load()
+	if !shouldAppend {
-	oldBalancers := *r.balancers.Load()
+		for _, rule := range r.rules {
-
+			if rule.Webhook != nil {
-	var newRules []*Rule
+				rule.Webhook.Close()
-	newBalancers := make(map[string]*Balancer)
+			}
-	existTags := make(map[string]bool, len(oldRules)+len(config.Rule))
-	if shouldAppend {
-		newRules = append(newRules, oldRules...)
-		maps.Copy(newBalancers, oldBalancers)
-		for _, rule := range oldRules {
-			existTags[rule.RuleTag] = true
 		}
+		r.balancers = make(map[string]*Balancer, len(config.BalancingRule))
+		r.rules = make([]*Rule, 0, len(config.Rule))
 	}
-
 	for _, rule := range config.BalancingRule {
-		if _, found := newBalancers[rule.Tag]; found {
+		_, found := r.balancers[rule.Tag]
+		if found {
 			return errors.New("duplicate balancer tag")
 		}
 		balancer, err := rule.Build(r.ohm, r.dispatcher)
@@ -113,12 +144,27 @@ func (r *Router) ReloadRules(config *Config, shouldAppend bool) error {
 			return err
 		}
 		balancer.InjectContext(r.ctx)
-		newBalancers[rule.Tag] = balancer
+		r.balancers[rule.Tag] = balancer
+	}
+
+	startIdx := len(r.rules)
+	closeNewWebhooks := func() {
+		for i := startIdx; i < len(r.rules); i++ {
+			if r.rules[i].Webhook != nil {
+				r.rules[i].Webhook.Close()
+			}
+		}
+		r.rules = r.rules[:startIdx]
 	}
 
 	for _, rule := range config.Rule {
+		if r.RuleExists(rule.GetRuleTag()) {
+			closeNewWebhooks()
+			return errors.New("duplicate ruleTag ", rule.GetRuleTag())
+		}
 		cond, err := rule.BuildCondition()
 		if err != nil {
+			closeNewWebhooks()
 			return err
 		}
 		rr := &Rule{
@@ -126,64 +172,70 @@ func (r *Router) ReloadRules(config *Config, shouldAppend bool) error {
 			Tag:       rule.GetTag(),
 			RuleTag:   rule.GetRuleTag(),
 		}
-		if rr.RuleTag != "" && existTags[rr.RuleTag] {
-			return errors.New("duplicate ruleTag ", rr.RuleTag)
-		}
-		existTags[rr.RuleTag] = true
 		if wh := rule.GetWebhook(); wh != nil {
 			notifier, err := NewWebhookNotifier(wh)
 			if err != nil {
+				closeNewWebhooks()
 				return err
 			}
 			rr.Webhook = notifier
 		}
-		if btag := rule.GetBalancingTag(); len(btag) > 0 {
+		btag := rule.GetBalancingTag()
-			brule, found := newBalancers[btag]
+		if len(btag) > 0 {
+			brule, found := r.balancers[btag]
 			if !found {
+				if rr.Webhook != nil {
+					rr.Webhook.Close()
+				}
+				closeNewWebhooks()
 				return errors.New("balancer ", btag, " not found")
 			}
 			rr.Balancer = brule
 		}
-		newRules = append(newRules, rr)
+		r.rules = append(r.rules, rr)
 	}
 
-	r.balancers.Store(&newBalancers)
-	r.rules.Store(&newRules)
-	if !shouldAppend {
-		closeWebhooks(oldRules)
-	}
 	return nil
 }
 
+func (r *Router) RuleExists(tag string) bool {
+	if tag != "" {
+		for _, rule := range r.rules {
+			if rule.RuleTag == tag {
+				return true
+			}
+		}
+	}
+	return false
+}
+
 // RemoveRule implements routing.Router.
 func (r *Router) RemoveRule(tag string) error {
-	if tag == "" {
-		return errors.New("empty tag name!")
-	}
-
 	r.mu.Lock()
 	defer r.mu.Unlock()
 
-	oldRules := *r.rules.Load()
+	newRules := []*Rule{}
-	newRules := make([]*Rule, 0, len(oldRules))
+	if tag != "" {
-	var removed []*Rule
+		for _, rule := range r.rules {
-	for _, rule := range oldRules {
+			if rule.RuleTag != tag {
-		if rule.RuleTag != tag {
+				newRules = append(newRules, rule)
-			newRules = append(newRules, rule)
+			} else if rule.Webhook != nil {
-		} else {
+				rule.Webhook.Close()
-			removed = append(removed, rule)
+			}
 		}
+		r.rules = newRules
+		return nil
 	}
-	r.rules.Store(&newRules)
+	return errors.New("empty tag name!")
-	closeWebhooks(removed)
+
-	return nil
 }
 
 // ListRule implements routing.Router
 func (r *Router) ListRule() []routing.Route {
-	rules := *r.rules.Load()
+	r.mu.Lock()
-	ruleList := make([]routing.Route, 0, len(rules))
+	defer r.mu.Unlock()
-	for _, rule := range rules {
+	ruleList := make([]routing.Route, 0)
+	for _, rule := range r.rules {
 		ruleList = append(ruleList, &Route{
 			outboundTag: rule.Tag,
 			ruleTag:     rule.RuleTag,
@@ -202,9 +254,7 @@ func (r *Router) pickRouteInternal(ctx routing.Context) (*Rule, routing.Context,
 		ctx = routing_dns.ContextWithDNSClient(ctx, r.dns)
 	}
 
-	rules := *r.rules.Load()
+	for _, rule := range r.rules {
-
-	for _, rule := range rules {
 		if rule.Apply(ctx) {
 			return rule, ctx, nil
 		}
@@ -217,7 +267,7 @@ func (r *Router) pickRouteInternal(ctx routing.Context) (*Rule, routing.Context,
 	ctx = routing_dns.ContextWithDNSClient(ctx, r.dns)
 
 	// Try applying rules again if we have IPs.
-	for _, rule := range rules {
+	for _, rule := range r.rules {
 		if rule.Apply(ctx) {
 			return rule, ctx, nil
 		}
@@ -228,19 +278,12 @@ func (r *Router) pickRouteInternal(ctx routing.Context) (*Rule, routing.Context,
 
 // Start implements common.Runnable.
 func (r *Router) Start() error {
-	if r.scriptPath != "" {
-		engine, err := newScriptEngine(r.scriptPath, r)
-		if err != nil {
-			return errors.New("failed to initialize routing script").Base(err)
-		}
-		r.script = engine
-	}
 	return nil
 }
 
-// closeWebhooks closes all webhook notifiers in the given rule set.
+// closeWebhooks closes all webhook notifiers in the current rule set.
-func closeWebhooks(rules []*Rule) {
+func (r *Router) closeWebhooks() {
-	for _, rule := range rules {
+	for _, rule := range r.rules {
 		if rule.Webhook != nil {
 			rule.Webhook.Close()
 		}
@@ -249,12 +292,9 @@ func closeWebhooks(rules []*Rule) {
 
 // Close implements common.Closable.
 func (r *Router) Close() error {
-	if r.script != nil {
-		r.script.close()
-	}
 	r.mu.Lock()
 	defer r.mu.Unlock()
-	closeWebhooks(*r.rules.Load())
+	r.closeWebhooks()
 	return nil
 }
 

app/router/script.go

@@ -1,68 +0,0 @@
-package router
-
-import (
-	"time"
-
-	"github.com/xtls/xray-core/app/dns"
-	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/errors"
-	"github.com/xtls/xray-core/common/geodata"
-	"github.com/xtls/xray-core/common/log"
-	xlua "github.com/xtls/xray-core/common/lua"
-	"github.com/xtls/xray-core/features/routing"
-	lua "github.com/yuin/gopher-lua"
-)
-
-const scriptExecutionTimeout = 6 * time.Second
-
-type scriptEngine struct {
-	router *Router
-	pool   *xlua.Pool
-}
-
-func newScriptEngine(path string, router *Router) (*scriptEngine, error) {
-	program, err := xlua.CompileFile(path)
-	if err != nil {
-		return nil, err
-	}
-	e := &scriptEngine{router: router}
-	e.pool, err = xlua.NewPool(router.ctx, scriptExecutionTimeout, program.NewStateFactory(
-		scriptExecutionTimeout*20,
-		func(L *lua.LState) {
-			geodata.RegisterLua(L)
-			log.RegisterLua(L)
-			router.RegisterLua(L)
-			dns.RegisterLua(L, router.dns)
-		},
-		func(L *lua.LState) error {
-			if L.GetGlobal("HandleRoute").Type() != lua.LTFunction {
-				return errors.New("routing script must define HandleRoute(...)")
-			}
-			return nil
-		}))
-	if err != nil {
-		return nil, err
-	}
-	errors.LogInfo(router.ctx, "routing script initialized from ", path)
-	return e, nil
-}
-
-func (e *scriptEngine) close() {
-	e.pool.Close()
-}
-
-func (e *scriptEngine) pickRoute(ctx routing.Context) (routing.Route, error) {
-	var tag, ruleTag string
-	err := e.pool.WithState(nil, 0, func(L *lua.LState) error {
-		var hookErr error
-		tag, ruleTag, hookErr = e.router.callLuaHook(L, ctx)
-		return hookErr
-	})
-	if err != nil {
-		return nil, err
-	}
-	if tag == "" {
-		return nil, common.ErrNoClue
-	}
-	return &Route{Context: ctx, outboundTag: tag, ruleTag: ruleTag}, nil
-}

app/router/script_test.go

@@ -1,372 +0,0 @@
-package router
-
-import (
-	"context"
-	stdnet "net"
-	"os"
-	"path/filepath"
-	"sync"
-	"sync/atomic"
-	"testing"
-	"time"
-
-	wireDNS "github.com/miekg/dns"
-	"github.com/xtls/xray-core/app/dispatcher"
-	appdns "github.com/xtls/xray-core/app/dns"
-	"github.com/xtls/xray-core/app/proxyman"
-	_ "github.com/xtls/xray-core/app/proxyman/outbound"
-	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/common/serial"
-	"github.com/xtls/xray-core/core"
-	featureDNS "github.com/xtls/xray-core/features/dns"
-	"github.com/xtls/xray-core/features/outbound"
-	"github.com/xtls/xray-core/features/routing"
-	routing_session "github.com/xtls/xray-core/features/routing/session"
-	"github.com/xtls/xray-core/proxy/blackhole"
-	"github.com/xtls/xray-core/proxy/freedom"
-)
-
-type luaRouteDNSClient struct {
-	featureDNS.Client
-	lookup func(string, featureDNS.IPOption) ([]net.IP, uint32, error)
-}
-
-func (d *luaRouteDNSClient) LookupIP(domain string, option featureDNS.IPOption) ([]net.IP, uint32, error) {
-	return d.lookup(domain, option)
-}
-
-type luaRouteOutboundManager struct{ outbound.Manager }
-
-func (*luaRouteOutboundManager) Select(selectors []string) []string { return selectors }
-
-func writeRouteScript(t *testing.T, script string) string {
-	t.Helper()
-	path := filepath.Join(t.TempDir(), "route.lua")
-	if err := os.WriteFile(path, []byte(script), 0o600); err != nil {
-		t.Fatal(err)
-	}
-	return path
-}
-
-func startLuaRouter(t *testing.T, script string, d featureDNS.Client, config *Config) *Router {
-	t.Helper()
-	if config == nil {
-		config = &Config{}
-	}
-	config.Script = writeRouteScript(t, script)
-	r := new(Router)
-	if err := r.Init(context.Background(), config, d, &luaRouteOutboundManager{}, nil); err != nil {
-		t.Fatal(err)
-	}
-	if err := r.Start(); err != nil {
-		t.Fatal(err)
-	}
-	t.Cleanup(func() {
-		if err := r.Close(); err != nil {
-			t.Error(err)
-		}
-	})
-	return r
-}
-
-func TestRouterScriptStartup(t *testing.T) {
-	for _, tc := range []struct{ name, script string }{
-		{"syntax error", "function HandleRoute("},
-		{"missing hook", "value = 1"},
-		{"initialization error", `error("setup failed")`},
-	} {
-		t.Run(tc.name, func(t *testing.T) {
-			r := new(Router)
-			if err := r.Init(context.Background(), &Config{Script: writeRouteScript(t, tc.script)}, nil, nil, nil); err != nil {
-				t.Fatal(err)
-			}
-			defer r.Close()
-			if err := r.Start(); err == nil {
-				t.Fatal("Start accepted an invalid routing script")
-			}
-		})
-	}
-}
-
-func TestRouterScriptRouting(t *testing.T) {
-	var dnsCalls atomic.Int32
-	d := &luaRouteDNSClient{lookup: func(string, featureDNS.IPOption) ([]net.IP, uint32, error) {
-		dnsCalls.Add(1)
-		return []net.IP{{1, 2, 3, 4}}, 60, nil
-	}}
-	r := startLuaRouter(t, `
-function HandleRoute(ctx, inbound)
-    if inbound == "miss" then return nil end
-    return "lua-out", "lua-rule"
-end`, d, &Config{
-		DomainStrategy: Config_IpOnDemand,
-		Rule: []*RoutingRule{{
-			TargetTag: &RoutingRule_Tag{Tag: "json-out"},
-			Networks:  []net.Network{net.Network_TCP},
-		}},
-	})
-	ctx := newLuaRouteTestContext()
-	ctx.Content.SkipDNSResolve = false
-	route, err := r.PickRoute(ctx)
-	if err != nil || route.GetOutboundTag() != "lua-out" || route.GetRuleTag() != "lua-rule" || route.(*Route).Context != ctx {
-		t.Fatalf("route = %v, %v", route, err)
-	}
-	ctx.Inbound.Tag = "miss"
-	if route, err := r.PickRoute(ctx); route != nil || err != common.ErrNoClue {
-		t.Fatalf("miss = %v, %v", route, err)
-	}
-	if dnsCalls.Load() != 0 {
-		t.Fatal("script routing implicitly resolved DNS")
-	}
-}
-
-func TestRouterScriptModules(t *testing.T) {
-	ips := []net.IP{{127, 0, 0, 7}}
-	calls := 0
-	d := &luaRouteDNSClient{lookup: func(domain string, option featureDNS.IPOption) ([]net.IP, uint32, error) {
-		calls++
-		if domain != "mixed.example." || !option.IPv4Enable || option.IPv6Enable || !option.FakeEnable {
-			t.Fatalf("dns.Query arguments = %q, %+v", domain, option)
-		}
-		return ips, 17, nil
-	}}
-	r := startLuaRouter(t, `
-local dns = require("xray.dns")
-local matcher = require("xray.geodata").BuildIPMatcher("127.0.0.0/8")
-assert(dns.Servers == nil and type(dns.Query) == "function")
-assert(type(require("xray.log").Info) == "function")
-function HandleRoute(ctx, inbound, sourcePort, targetPort, localPort, domain)
-    local ips, ttl, err = dns.Query(domain, true, false, true)
-    assert(not err and ttl == 17)
-    assert(matcher:AnyMatch(ips) and matcher:AnyMatch(ctx:GetTargetIPs()))
-    return "out"
-end`, d, nil)
-	if _, err := r.PickRoute(newLuaRouteTestContext()); err != nil {
-		t.Fatal(err)
-	}
-	if calls != 1 {
-		t.Fatalf("DNS calls = %d, want 1", calls)
-	}
-}
-
-func TestRouterScriptBalancerReload(t *testing.T) {
-	config := func(tag string) *Config {
-		return &Config{BalancingRule: []*BalancingRule{{
-			Tag: "balance", Strategy: "roundrobin", OutboundSelector: []string{tag},
-		}}}
-	}
-	r := startLuaRouter(t, `
-local router = require("xray.router")
-function HandleRoute()
-    local tag, err = router:PickOutbound("balance")
-    return tag, "balanced", err
-end`, nil, config("old"))
-	pick := func(want string) {
-		t.Helper()
-		route, err := r.PickRoute(&routing_session.Context{})
-		if err != nil || route.GetOutboundTag() != want || route.GetRuleTag() != "balanced" {
-			t.Fatalf("route = %v, %v, want %q", route, err, want)
-		}
-	}
-
-	pick("old")
-	if err := r.SetOverrideTarget("balance", "override"); err != nil {
-		t.Fatal(err)
-	}
-	pick("override")
-	if err := r.SetOverrideTarget("balance", ""); err != nil {
-		t.Fatal(err)
-	}
-	if err := r.ReloadRules(config("new"), false); err != nil {
-		t.Fatal(err)
-	}
-	pick("new")
-}
-
-func TestRouterScriptConcurrentBalancerReload(t *testing.T) {
-	config := func(tag string) *Config {
-		return &Config{BalancingRule: []*BalancingRule{{
-			Tag: "balance", Strategy: "roundrobin", OutboundSelector: []string{tag},
-		}}}
-	}
-	r := startLuaRouter(t, `
-local router = require("xray.router")
-function HandleRoute()
-    local tag, err = router:PickOutbound("balance")
-    return tag, nil, err
-end`, nil, config("a"))
-
-	var wg sync.WaitGroup
-	for range 4 {
-		wg.Go(func() {
-			for range 20 {
-				route, err := r.PickRoute(&routing_session.Context{})
-				if err != nil {
-					t.Errorf("PickRoute: %v", err)
-					return
-				}
-				if tag := route.GetOutboundTag(); tag != "a" && tag != "b" {
-					t.Errorf("unexpected tag %q", tag)
-				}
-			}
-		})
-	}
-	wg.Go(func() {
-		for range 20 {
-			for _, tag := range []string{"a", "b"} {
-				if err := r.ReloadRules(config(tag), false); err != nil {
-					t.Error(err)
-					return
-				}
-			}
-		}
-	})
-	wg.Wait()
-}
-
-func TestRouterScriptStateReuse(t *testing.T) {
-	r := startLuaRouter(t, `
-local calls = 0
-function HandleRoute(ctx, inbound)
-    calls = calls + 1
-    if inbound == "miss" then return nil end
-    if inbound == "fail" then error("failed") end
-    return tostring(calls)
-end`, nil, nil)
-	ctx := newLuaRouteTestContext()
-	pick := func(want string) {
-		t.Helper()
-		route, err := r.PickRoute(ctx)
-		if err != nil || route.GetOutboundTag() != want {
-			t.Fatalf("route = %v, %v, want %q", route, err, want)
-		}
-	}
-
-	pick("1")
-	ctx.Inbound.Tag = "miss"
-	if _, err := r.PickRoute(ctx); err != common.ErrNoClue {
-		t.Fatalf("miss = %v", err)
-	}
-	ctx.Inbound.Tag = "in"
-	pick("3")
-	ctx.Inbound.Tag = "fail"
-	if _, err := r.PickRoute(ctx); err == nil {
-		t.Fatal("script error was ignored")
-	}
-	ctx.Inbound.Tag = "in"
-	pick("1")
-}
-
-func TestRouterScriptDNSDispatcherReentry(t *testing.T) {
-	conn, err := stdnet.ListenPacket("udp4", "127.0.0.1:0")
-	if err != nil {
-		t.Fatal(err)
-	}
-	port := conn.LocalAddr().(*stdnet.UDPAddr).Port
-	ready, stopped := make(chan struct{}), make(chan error, 1)
-	var queries atomic.Int32
-	server := &wireDNS.Server{
-		PacketConn: conn,
-		NotifyStartedFunc: func() {
-			close(ready)
-		},
-		Handler: wireDNS.HandlerFunc(func(w wireDNS.ResponseWriter, query *wireDNS.Msg) {
-			queries.Add(1)
-			response := new(wireDNS.Msg).SetReply(query)
-			for _, question := range query.Question {
-				if question.Name == "nested.example." && question.Qtype == wireDNS.TypeA {
-					response.Answer = append(response.Answer, &wireDNS.A{
-						Hdr: wireDNS.RR_Header{Name: question.Name, Rrtype: wireDNS.TypeA, Class: wireDNS.ClassINET, Ttl: 60},
-						A:   stdnet.IP{127, 0, 0, 7},
-					})
-				}
-			}
-			if err := w.WriteMsg(response); err != nil {
-				t.Error(err)
-			}
-		}),
-	}
-	go func() { stopped <- server.ActivateAndServe() }()
-	defer func() {
-		server.Shutdown()
-		select {
-		case err := <-stopped:
-			if err != nil {
-				t.Error(err)
-			}
-		case <-time.After(3 * time.Second):
-			t.Error("DNS server did not stop")
-		}
-	}()
-	select {
-	case <-ready:
-	case err := <-stopped:
-		t.Fatalf("DNS server startup: %v", err)
-	case <-time.After(3 * time.Second):
-		t.Fatal("DNS server did not start")
-	}
-
-	dnsScript := writeRouteScript(t, `
-local server = require("xray.dns").Servers[1]
-function HandleDNSQuery(domain, ipv4, ipv6, fake)
-    return server:Query(domain, ipv4, ipv6, fake)
-end`)
-	routerScript := writeRouteScript(t, `
-local router = require("xray.router")
-local dns = require("xray.dns")
-local matcher = require("xray.geodata").BuildIPMatcher("127.0.0.7")
-local active = false
-function HandleRoute(ctx, inbound, sourcePort, targetPort, localPort, domain, network,
-    protocol, user, vlessRoute, skipDNSResolve)
-    assert(not active, "borrowed Router VM reentered")
-    if inbound == "dns" then
-        assert(network == router.NetworkUDP and skipDNSResolve == false)
-        return "direct", "dns-route"
-    end
-    active = true
-    local ips, ttl, err = dns.Query("nested.example", true, false, false)
-    assert(not err and matcher:AnyMatch(ips) and active)
-    active = false
-    return "direct", "outer-route"
-end`)
-	instance, err := core.New(&core.Config{
-		App: []*serial.TypedMessage{
-			serial.ToTypedMessage(&appdns.Config{
-				Tag: "dns", Script: dnsScript, DisableCache: true,
-				NameServer: []*appdns.NameServer{{
-					Id: "upstream", TimeoutMs: 1000,
-					Address: &net.Endpoint{
-						Network: net.Network_UDP,
-						Address: &net.IPOrDomain{Address: &net.IPOrDomain_Ip{Ip: []byte{127, 0, 0, 1}}},
-						Port:    uint32(port),
-					},
-				}},
-			}),
-			serial.ToTypedMessage(&Config{Script: routerScript}),
-			serial.ToTypedMessage(&dispatcher.Config{}),
-			serial.ToTypedMessage(&proxyman.OutboundConfig{}),
-		},
-		Outbound: []*core.OutboundHandlerConfig{
-			{Tag: "default", ProxySettings: serial.ToTypedMessage(&blackhole.Config{})},
-			{Tag: "direct", ProxySettings: serial.ToTypedMessage(&freedom.Config{
-				FinalRules: []*freedom.FinalRuleConfig{{Action: freedom.RuleAction_Allow}},
-			})},
-		},
-	})
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer instance.Close()
-	if err := instance.Start(); err != nil {
-		t.Fatal(err)
-	}
-	r := instance.GetFeature(routing.RouterType()).(*Router)
-	route, err := r.PickRoute(newLuaRouteTestContext())
-	if err != nil || route.GetOutboundTag() != "direct" || route.GetRuleTag() != "outer-route" {
-		t.Fatalf("nested DNS routing = %v, %v", route, err)
-	}
-	if queries.Load() == 0 {
-		t.Fatal("DNS query did not pass through the dispatcher")
-	}
-}

app/router/strategy_leastload.go

@@ -3,7 +3,6 @@ package router
 import (
 	"context"
 	"math"
-	"slices"
 	"sort"
 	"time"
 
@@ -78,7 +77,7 @@ func (s *LeastLoadStrategy) PickOutbound(candidates []string) string {
 }
 
 func (s *LeastLoadStrategy) pickOutbounds(candidates []string) []*node {
-	qualified := s.getNodes(candidates)
+	qualified := s.getNodes(candidates, time.Duration(s.settings.MaxRTT))
 	selects := s.selectLeastLoad(qualified)
 	return selects
 }
@@ -139,7 +138,7 @@ func (s *LeastLoadStrategy) selectLeastLoad(nodes []*node) []*node {
 	return nodes[:count]
 }
 
-func (s *LeastLoadStrategy) getNodes(candidates []string) []*node {
+func (s *LeastLoadStrategy) getNodes(candidates []string, maxRTT time.Duration) []*node {
 	if s.observer == nil {
 		errors.LogError(s.ctx, "observer is nil")
 		return make([]*node, 0)
@@ -152,10 +151,12 @@ func (s *LeastLoadStrategy) getNodes(candidates []string) []*node {
 
 	results := observeResult.(*observatory.ObservationResult)
 
+	outboundlist := outboundList(candidates)
+
 	var ret []*node
 
 	for _, v := range results.Status {
-		if s.shouldSelectNode(v, candidates) {
+		if v.Alive && (v.Delay < maxRTT.Milliseconds() || maxRTT == 0) && outboundlist.contains(v.OutboundTag) {
 			record := &node{
 				Tag:              v.OutboundTag,
 				CountAll:         1,
@@ -171,8 +172,8 @@ func (s *LeastLoadStrategy) getNodes(candidates []string) []*node {
 				record.RTTDeviationCost = time.Duration(s.costs.Apply(v.OutboundTag, float64(v.HealthPing.Deviation)))
 				record.CountAll = int(v.HealthPing.All)
 				record.CountFail = int(v.HealthPing.Fail)
-			}
 
+			}
 			ret = append(ret, record)
 		}
 	}
@@ -181,23 +182,6 @@ func (s *LeastLoadStrategy) getNodes(candidates []string) []*node {
 	return ret
 }
 
-func (s *LeastLoadStrategy) shouldSelectNode(v *observatory.OutboundStatus, candidates []string) bool {
-	maxRTT := time.Duration(s.settings.MaxRTT)
-	if !v.Alive {
-		return false
-	}
-	if maxRTT != 0 && v.Delay >= maxRTT.Milliseconds() {
-		return false
-	}
-	if !slices.Contains(candidates, v.OutboundTag) {
-		return false
-	}
-	if v.HealthPing != nil && v.HealthPing.All > 0 && s.settings.Tolerance > 0 && float64(v.HealthPing.Fail)/float64(v.HealthPing.All) > float64(s.settings.Tolerance) {
-		return false
-	}
-	return true
-}
-
 func leastloadSort(nodes []*node) {
 	sort.Slice(nodes, func(i, j int) bool {
 		left := nodes[i]

app/router/strategy_leastload_test.go

@@ -85,7 +85,6 @@ func TestSelectLeastExpected(t *testing.T) {
 		t.Errorf("expected: %v, actual: %v", expected, len(ns))
 	}
 }
-
 func TestSelectLeastExpected2(t *testing.T) {
 	strategy := &LeastLoadStrategy{
 		settings: &StrategyLeastLoadConfig{
@@ -103,7 +102,6 @@ func TestSelectLeastExpected2(t *testing.T) {
 		t.Errorf("expected: %v, actual: %v", expected, len(ns))
 	}
 }
-
 func TestSelectLeastExpectedAndBaselines(t *testing.T) {
 	strategy := &LeastLoadStrategy{
 		settings: &StrategyLeastLoadConfig{
@@ -124,7 +122,6 @@ func TestSelectLeastExpectedAndBaselines(t *testing.T) {
 		t.Errorf("expected: %v, actual: %v", expected, len(ns))
 	}
 }
-
 func TestSelectLeastExpectedAndBaselines2(t *testing.T) {
 	strategy := &LeastLoadStrategy{
 		settings: &StrategyLeastLoadConfig{
@@ -145,7 +142,6 @@ func TestSelectLeastExpectedAndBaselines2(t *testing.T) {
 		t.Errorf("expected: %v, actual: %v", expected, len(ns))
 	}
 }
-
 func TestSelectLeastLoadBaselines(t *testing.T) {
 	strategy := &LeastLoadStrategy{
 		settings: &StrategyLeastLoadConfig{
@@ -164,7 +160,6 @@ func TestSelectLeastLoadBaselines(t *testing.T) {
 		t.Errorf("expected: %v, actual: %v", expected, len(ns))
 	}
 }
-
 func TestSelectLeastLoadBaselinesNoQualified(t *testing.T) {
 	strategy := &LeastLoadStrategy{
 		settings: &StrategyLeastLoadConfig{

app/router/webhook.go

@@ -7,16 +7,61 @@ import (
 	"io"
 	"net"
 	"net/http"
+	"path/filepath"
+	"runtime"
+	"strings"
 	"sync"
-	"sync/atomic"
+	"syscall"
 	"time"
 
 	"github.com/xtls/xray-core/common/errors"
-	"github.com/xtls/xray-core/common/utils"
 	"github.com/xtls/xray-core/features/routing"
 	routing_session "github.com/xtls/xray-core/features/routing/session"
 )
 
+// parseURL splits a webhook URL into an HTTP URL and an optional Unix socket
+// path. For regular http/https URLs the input is returned unchanged with an
+// empty socketPath. For Unix sockets the format is:
+//
+//	/path/to/socket.sock:/http/path
+//	@abstract:/http/path
+//	@@padded:/http/path
+//
+// The :/ separator after the socket path delimits the HTTP request path.
+// If omitted, "/" is used.
+func parseURL(raw string) (httpURL, socketPath string) {
+	if len(raw) == 0 || (!filepath.IsAbs(raw) && raw[0] != '@') {
+		return raw, ""
+	}
+	if idx := strings.Index(raw, ":/"); idx >= 0 {
+		return "http://localhost" + raw[idx+1:], raw[:idx]
+	}
+	return "http://localhost/", raw
+}
+
+// resolveSocketPath applies platform-specific transformations to a Unix
+// socket path, matching the behaviour of the listen side in
+// transport/internet/system_listener.go.
+//
+// For abstract sockets (prefix @) on Linux/Android:
+//   - single @ — used as-is (lock-free abstract socket)
+//   - double @@ — stripped to single @ and padded to
+//     syscall.RawSockaddrUnix{}.Path length (HAProxy compat)
+func resolveSocketPath(path string) string {
+	if len(path) == 0 || path[0] != '@' {
+		return path
+	}
+	if runtime.GOOS != "linux" && runtime.GOOS != "android" {
+		return path
+	}
+	if len(path) > 1 && path[1] == '@' {
+		fullAddr := make([]byte, len(syscall.RawSockaddrUnix{}.Path))
+		copy(fullAddr, path[1:])
+		return string(fullAddr)
+	}
+	return path
+}
+
 func ptr[T any](v T) *T { return &v }
 
 type event struct {
@@ -41,7 +86,6 @@ type WebhookNotifier struct {
 	deduplication uint32
 	client        *http.Client
 	seen          sync.Map
-	lastSweep     atomic.Int64
 	done          chan struct{}
 	wg            sync.WaitGroup
 	closeOnce     sync.Once
@@ -52,7 +96,7 @@ func NewWebhookNotifier(cfg *WebhookConfig) (*WebhookNotifier, error) {
 		return nil, nil
 	}
 
-	httpURL, socketPath := utils.SplitHTTPUnixURL(cfg.Url)
+	httpURL, socketPath := parseURL(cfg.Url)
 	h := &WebhookNotifier{
 		url:           httpURL,
 		deduplication: cfg.Deduplication,
@@ -63,7 +107,7 @@ func NewWebhookNotifier(cfg *WebhookConfig) (*WebhookNotifier, error) {
 	}
 
 	if socketPath != "" {
-		dialAddr := utils.ResolveSocketPath(socketPath)
+		dialAddr := resolveSocketPath(socketPath)
 		h.client.Transport = &http.Transport{
 			DialContext: func(ctx context.Context, _, _ string) (net.Conn, error) {
 				var d net.Dialer
@@ -79,6 +123,11 @@ func NewWebhookNotifier(cfg *WebhookConfig) (*WebhookNotifier, error) {
 		}
 	}
 
+	if h.deduplication > 0 {
+		h.wg.Add(1)
+		go h.cleanupLoop()
+	}
+
 	return h, nil
 }
 
@@ -198,7 +247,6 @@ func (h *WebhookNotifier) isDuplicate(email string) bool {
 	}
 	ttl := time.Duration(h.deduplication) * time.Second
 	now := time.Now()
-	h.maybeSweep(now, ttl)
 	if v, loaded := h.seen.LoadOrStore(email, now); loaded {
 		if now.Sub(v.(time.Time)) < ttl {
 			return true
@@ -208,23 +256,27 @@ func (h *WebhookNotifier) isDuplicate(email string) bool {
 	return false
 }
 
-func (h *WebhookNotifier) maybeSweep(now time.Time, ttl time.Duration) {
+func (h *WebhookNotifier) cleanupLoop() {
-	last := h.lastSweep.Load()
+	defer h.wg.Done()
-	if now.UnixNano()-last < int64(ttl) {
+	ttl := time.Duration(h.deduplication) * time.Second
-		return
+	ticker := time.NewTicker(ttl)
-	}
+	defer ticker.Stop()
-	if !h.lastSweep.CompareAndSwap(last, now.UnixNano()) {
+	for {
-		return // another goroutine did the sweep
+		select {
-	}
+		case <-h.done:
-	h.seen.Range(func(key, value any) bool {
+			return
-		if now.Sub(value.(time.Time)) >= ttl {
+		case <-ticker.C:
-			h.seen.Delete(key)
+			now := time.Now()
+			h.seen.Range(func(key, value any) bool {
+				if now.Sub(value.(time.Time)) >= ttl {
+					h.seen.Delete(key)
+				}
+				return true
+			})
 		}
-		return true
+	}
-	})
 }
 
-// Only need to call if the Notifier is really used, otherwise GC can clean it
 func (h *WebhookNotifier) Close() error {
 	h.closeOnce.Do(func() {
 		close(h.done)

app/stats/stats.go

@@ -48,20 +48,6 @@ func (m *Manager) RegisterCounter(name string) (stats.Counter, error) {
 	return c, nil
 }
 
-// GetOrRegisterCounter implements stats.Manager.
-func (m *Manager) GetOrRegisterCounter(name string) (stats.Counter, error) {
-	m.access.Lock()
-	defer m.access.Unlock()
-
-	if c, found := m.counters[name]; found {
-		return c, nil
-	}
-	errors.LogDebug(context.Background(), "create new counter ", name)
-	c := new(Counter)
-	m.counters[name] = c
-	return c, nil
-}
-
 // UnregisterCounter implements stats.Manager.
 func (m *Manager) UnregisterCounter(name string) error {
 	m.access.Lock()
@@ -111,20 +97,6 @@ func (m *Manager) RegisterOnlineMap(name string) (stats.OnlineMap, error) {
 	return om, nil
 }
 
-// GetOrRegisterOnlineMap implements stats.Manager.
-func (m *Manager) GetOrRegisterOnlineMap(name string) (stats.OnlineMap, error) {
-	m.access.Lock()
-	defer m.access.Unlock()
-
-	if om, found := m.onlineMaps[name]; found {
-		return om, nil
-	}
-	errors.LogDebug(context.Background(), "create new OnlineMap ", name)
-	om := NewOnlineMap()
-	m.onlineMaps[name] = om
-	return om, nil
-}
-
 // UnregisterOnlineMap implements stats.Manager.
 func (m *Manager) UnregisterOnlineMap(name string) error {
 	m.access.Lock()
@@ -177,26 +149,6 @@ func (m *Manager) RegisterChannel(name string) (stats.Channel, error) {
 	return c, nil
 }
 
-// GetOrRegisterChannel implements stats.Manager.
-func (m *Manager) GetOrRegisterChannel(name string) (stats.Channel, error) {
-	m.access.Lock()
-	defer m.access.Unlock()
-
-	if c, found := m.channels[name]; found {
-		return c, nil
-	}
-	errors.LogDebug(context.Background(), "create new channel ", name)
-	c := NewChannel(&ChannelConfig{BufferSize: 64, Blocking: false})
-	if m.running {
-		// Start before publishing so no goroutine can observe an unstarted channel.
-		if err := c.Start(); err != nil {
-			return nil, err
-		}
-	}
-	m.channels[name] = c
-	return c, nil
-}
-
 // UnregisterChannel implements stats.Manager.
 func (m *Manager) UnregisterChannel(name string) error {
 	m.access.Lock()

app/stats/stats_test.go

@@ -11,7 +11,7 @@ import (
 )
 
 func TestInterface(t *testing.T) {
-	_ = stats.Manager(new(Manager))
+	_ = (stats.Manager)(new(Manager))
 }
 
 func TestStatsChannelRunnable(t *testing.T) {

app/version/version.go

@@ -2,11 +2,10 @@ package version
 
 import (
 	"context"
-	"strconv"
-	"strings"
-
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
+	"strconv"
+	"strings"
 )
 
 type Version struct {

common/buf/io.go

@@ -122,7 +122,7 @@ func NewReader(reader io.Reader) Reader {
 	}
 
 	_, isFile := reader.(*os.File)
-	if !isFile && useReadV() {
+	if !isFile && useReadv {
 		if sc, ok := reader.(syscall.Conn); ok {
 			rawConn, err := sc.SyscallConn()
 			if err != nil {

common/buf/multi_buffer.go

@@ -38,8 +38,8 @@ func MergeMulti(dest MultiBuffer, src MultiBuffer) (MultiBuffer, MultiBuffer) {
 // MergeBytes merges the given bytes into MultiBuffer and return the new address of the merged MultiBuffer.
 func MergeBytes(dest MultiBuffer, src []byte) MultiBuffer {
 	n := len(dest)
-	if n > 0 && !dest[n-1].IsFull() {
+	if n > 0 && !(dest)[n-1].IsFull() {
-		nBytes, _ := dest[n-1].Write(src)
+		nBytes, _ := (dest)[n-1].Write(src)
 		src = src[nBytes:]
 	}
 

common/buf/reader_test.go

@@ -121,11 +121,11 @@ func TestPacketReader_ReadMultiBuffer(t *testing.T) {
 }
 
 func TestReaderInterface(t *testing.T) {
-	_ = io.Reader(new(ReadVReader))
+	_ = (io.Reader)(new(ReadVReader))
-	_ = Reader(new(ReadVReader))
+	_ = (Reader)(new(ReadVReader))
 
-	_ = Reader(new(BufferedReader))
+	_ = (Reader)(new(BufferedReader))
-	_ = io.Reader(new(BufferedReader))
+	_ = (io.Reader)(new(BufferedReader))
-	_ = io.ByteReader(new(BufferedReader))
+	_ = (io.ByteReader)(new(BufferedReader))
-	_ = io.WriterTo(new(BufferedReader))
+	_ = (io.WriterTo)(new(BufferedReader))
 }

common/buf/readv_posix.go

@@ -19,7 +19,7 @@ func (r *posixReader) Init(bs []*Buffer) {
 	}
 	for idx, b := range bs {
 		iovecs = append(iovecs, syscall.Iovec{
-			Base: &b.v[0],
+			Base: &(b.v[0]),
 		})
 		iovecs[idx].SetLen(int(Size))
 	}

common/buf/readv_reader.go

@@ -5,7 +5,6 @@ package buf
 
 import (
 	"io"
-	"sync/atomic"
 	"syscall"
 
 	"github.com/xtls/xray-core/common/platform"
@@ -144,24 +143,13 @@ func (r *ReadVReader) ReadMultiBuffer() (MultiBuffer, error) {
 	return mb, nil
 }
 
-var useReadv atomic.Bool
+var useReadv bool
-
-func useReadV() bool {
-	return useReadv.Load()
-}
-
-func reloadEnvSettings() error {
-	const defaultFlagValue = "NOT_DEFINED_AT_ALL"
-	value := platform.NewEnvFlag(platform.UseReadV).GetValue(func() string { return defaultFlagValue })
-	enabled := false
-	switch value {
-	case defaultFlagValue, "auto", "enable":
-		enabled = true
-	}
-	useReadv.Store(enabled)
-	return nil
-}
 
 func init() {
-	platform.RegisterEnvReload(reloadEnvSettings)
+	const defaultFlagValue = "NOT_DEFINED_AT_ALL"
+	value := platform.NewEnvFlag(platform.UseReadV).GetValue(func() string { return defaultFlagValue })
+	switch value {
+	case defaultFlagValue, "auto", "enable":
+		useReadv = true
+	}
 }

common/buf/readv_reader_stub.go

@@ -10,9 +10,7 @@ import (
 	"github.com/xtls/xray-core/features/stats"
 )
 
-func useReadV() bool {
+const useReadv = false
-	return false
-}
 
 func NewReadVReader(reader io.Reader, rawConn syscall.RawConn, counter stats.Counter) Reader {
 	panic("not implemented")

common/buf/readv_windows.go

@@ -5,8 +5,7 @@ import (
 )
 
 type windowsReader struct {
-	bufs  []syscall.WSABuf
+	bufs []syscall.WSABuf
-	ready bool
 }
 
 func (r *windowsReader) Init(bs []*Buffer) {
@@ -16,7 +15,6 @@ func (r *windowsReader) Init(bs []*Buffer) {
 	for _, b := range bs {
 		r.bufs = append(r.bufs, syscall.WSABuf{Len: uint32(Size), Buf: &b.v[0]})
 	}
-	r.ready = false
 }
 
 func (r *windowsReader) Clear() {
@@ -27,14 +25,6 @@ func (r *windowsReader) Clear() {
 }
 
 func (r *windowsReader) Read(fd uintptr) int32 {
-	// On the first invocation, we return -1 to indicate "not ready"
-	// to make rawConn.Read wait for readability using the runtime's own mechanism
-	// because syscall.WSARecv() is a blocking call when used with nil OVERLAPPED
-	if !r.ready {
-		r.ready = true
-		return -1
-	}
-
 	var nBytes uint32
 	var flags uint32
 	err := syscall.WSARecv(syscall.Handle(fd), &r.bufs[0], uint32(len(r.bufs)), &nBytes, &flags, nil, nil)

common/buf/writer.go

@@ -118,9 +118,7 @@ func (w *BufferedWriter) Write(b []byte) (int, error) {
 
 		nBytes, err := w.buffer.Write(b)
 		totalBytes += nBytes
-
+		if err != nil {
-		// ErrBufferFull means a partial write, so flush below and continue
-		if err != nil && err != ErrBufferFull {
 			return totalBytes, err
 		}
 		if !w.buffered || w.buffer.IsFull() {

common/crypto/crypto.go

@@ -10,12 +10,12 @@ import (
 
 // [,)
 func RandBetween(from int64, to int64) int64 {
+	if from == to {
+		return from
+	}
 	if from > to {
 		from, to = to, from
 	}
-	if d := to - from; d == 0 || d == 1 {
-		return from
-	}
 	bigInt, _ := rand.Int(rand.Reader, big.NewInt(to-from))
 	return from + bigInt.Int64()
 }

common/errors/errors.go

@@ -18,12 +18,17 @@ type hasInnerError interface {
 	Unwrap() error
 }
 
+type hasSeverity interface {
+	Severity() log.Severity
+}
+
 // Error is an error object with underlying error.
 type Error struct {
-	prefix  []interface{}
+	prefix   []interface{}
-	message []interface{}
+	message  []interface{}
-	caller  string
+	caller   string
-	inner   error
+	inner    error
+	severity log.Severity
 }
 
 // Error implements error.Error().
@@ -64,6 +69,46 @@ func (err *Error) Base(e error) *Error {
 	return err
 }
 
+func (err *Error) atSeverity(s log.Severity) *Error {
+	err.severity = s
+	return err
+}
+
+func (err *Error) Severity() log.Severity {
+	if err.inner == nil {
+		return err.severity
+	}
+
+	if s, ok := err.inner.(hasSeverity); ok {
+		as := s.Severity()
+		if as < err.severity {
+			return as
+		}
+	}
+
+	return err.severity
+}
+
+// AtDebug sets the severity to debug.
+func (err *Error) AtDebug() *Error {
+	return err.atSeverity(log.Severity_Debug)
+}
+
+// AtInfo sets the severity to info.
+func (err *Error) AtInfo() *Error {
+	return err.atSeverity(log.Severity_Info)
+}
+
+// AtWarning sets the severity to warning.
+func (err *Error) AtWarning() *Error {
+	return err.atSeverity(log.Severity_Warning)
+}
+
+// AtError sets the severity to error.
+func (err *Error) AtError() *Error {
+	return err.atSeverity(log.Severity_Error)
+}
+
 // String returns the string representation of this error.
 func (err *Error) String() string {
 	return err.Error()
@@ -87,8 +132,9 @@ func New(msg ...interface{}) *Error {
 		details = details[:i]
 	}
 	return &Error{
-		message: msg,
+		message:  msg,
-		caller:  details,
+		severity: log.Severity_Info,
+		caller:   details,
 	}
 }
 
@@ -125,9 +171,6 @@ func LogErrorInner(ctx context.Context, inner error, msg ...interface{}) {
 }
 
 func doLog(ctx context.Context, inner error, severity log.Severity, msg ...interface{}) {
-	if log.GetSeverity() < severity {
-		return
-	}
 	pc, _, _, _ := runtime.Caller(2)
 	details := runtime.FuncForPC(pc).Name()
 	if len(details) >= trim {
@@ -138,9 +181,10 @@ func doLog(ctx context.Context, inner error, severity log.Severity, msg ...inter
 		details = details[:i]
 	}
 	err := &Error{
-		message: msg,
+		message:  msg,
-		caller:  details,
+		severity: severity,
-		inner:   inner,
+		caller:   details,
+		inner:    inner,
 	}
 	if ctx != nil && ctx != context.Background() {
 		id := uint32(c.IDFromContext(ctx))
@@ -149,7 +193,7 @@ func doLog(ctx context.Context, inner error, severity log.Severity, msg ...inter
 		}
 	}
 	log.Record(&log.GeneralMessage{
-		Severity: severity,
+		Severity: GetSeverity(err),
 		Content:  err,
 	})
 }
@@ -173,3 +217,11 @@ L:
 	}
 	return err
 }
+
+// GetSeverity returns the actual severity of the error, including inner errors.
+func GetSeverity(err error) log.Severity {
+	if s, ok := err.(hasSeverity); ok {
+		return s.Severity()
+	}
+	return log.Severity_Info
+}

common/errors/errors_test.go

@@ -7,21 +7,30 @@ import (
 
 	"github.com/google/go-cmp/cmp"
 	. "github.com/xtls/xray-core/common/errors"
+	"github.com/xtls/xray-core/common/log"
 )
 
 func TestError(t *testing.T) {
 	err := New("TestError")
-	if v := err.Error(); !strings.Contains(v, "TestError") {
+	if v := GetSeverity(err); v != log.Severity_Info {
-		t.Error("error: ", v)
+		t.Error("severity: ", v)
 	}
 
 	err = New("TestError2").Base(io.EOF)
-	if v := err.Error(); !strings.Contains(v, "EOF") {
+	if v := GetSeverity(err); v != log.Severity_Info {
-		t.Error("error: ", v)
+		t.Error("severity: ", v)
 	}
 
-	err = New("TestError3").Base(io.EOF)
+	err = New("TestError3").Base(io.EOF).AtWarning()
-	err = New("TestError4").Base(err)
+	if v := GetSeverity(err); v != log.Severity_Warning {
+		t.Error("severity: ", v)
+	}
+
+	err = New("TestError4").Base(io.EOF).AtWarning()
+	err = New("TestError5").Base(err)
+	if v := GetSeverity(err); v != log.Severity_Warning {
+		t.Error("severity: ", v)
+	}
 	if v := err.Error(); !strings.Contains(v, "EOF") {
 		t.Error("error: ", v)
 	}

common/geodata/consts.go

@@ -1,49 +0,0 @@
-package geodata
-
-import (
-	"sync"
-
-	"github.com/xtls/xray-core/common"
-)
-
-var privateIPMatcher = sync.OnceValue(func() IPMatcher {
-	return common.Must2(IPReg.BuildIPMatcher(common.Must2(ParseIPRules([]string{
-		"0.0.0.0/8",
-		"10.0.0.0/8",
-		"100.64.0.0/10",
-		"127.0.0.0/8",
-		"169.254.0.0/16",
-		"172.16.0.0/12",
-		"192.0.0.0/24",
-		"192.0.2.0/24",
-		"192.88.99.0/24",
-		"192.168.0.0/16",
-		"198.18.0.0/15",
-		"198.51.100.0/24",
-		"203.0.113.0/24",
-		"224.0.0.0/3",
-		"::/127",
-		"fc00::/7",
-		"fe80::/10",
-		"ff00::/8",
-	}))))
-})
-
-func GetPrivateIPMatcher() IPMatcher { return privateIPMatcher() }
-
-var privateDomainMatcher = sync.OnceValue(func() DomainMatcher {
-	return common.Must2(DomainReg.BuildDomainMatcher(common.Must2(ParseDomainRules([]string{
-		"lan",
-		"localdomain",
-		"example",
-		"invalid",
-		"localhost",
-		"test",
-		"local",
-		"home.arpa",
-		"internal",
-		"regexp:^[a-z]([a-z0-9-]{0,61}[a-z0-9])?$", // Dotless domains
-	}, Domain_Domain))))
-})
-
-func GetPrivateDomainMatcher() DomainMatcher { return privateDomainMatcher() }

common/geodata/domain_matcher.go

@@ -8,7 +8,6 @@ import (
 
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/geodata/strmatcher"
-	"github.com/xtls/xray-core/common/utils"
 )
 
 type DomainMatcher interface {
@@ -26,7 +25,7 @@ type DomainMatcherFactory interface {
 
 type MphDomainMatcherFactory struct {
 	sync.Mutex
-	shared *utils.WeakCacheMap[string, strmatcher.MphValueMatcher]
+	shared map[string]strmatcher.MatcherGroup // TODO: cleanup
 }
 
 func buildDomainRulesKey(rules []*DomainRule) string {
@@ -66,7 +65,7 @@ func (f *MphDomainMatcherFactory) BuildMatcher(rules []*DomainRule) (DomainMatch
 	if key != "" {
 		f.Lock()
 		defer f.Unlock()
-		if g, ok := f.shared.Load(key); ok {
+		if g := f.shared[key]; g != nil {
 			errors.LogDebug(context.Background(), "geodata mph domain matcher cache HIT for ", len(rules), " rules")
 			return g, nil
 		}
@@ -82,10 +81,19 @@ func (f *MphDomainMatcherFactory) BuildMatcher(rules []*DomainRule) (DomainMatch
 			}
 			g.Add(m, uint32(i))
 		case *DomainRule_Geosite:
-			err := loadSiteMatchers(v.Geosite, func(m strmatcher.Matcher) { g.Add(m, uint32(i)) })
+			domains, err := loadSiteWithAttrs(v.Geosite.File, v.Geosite.Code, v.Geosite.Attrs)
 			if err != nil {
 				return nil, err
 			}
+			for j, d := range domains {
+				domains[j] = nil // peak mem
+				m, err := parseDomain(d)
+				if err != nil {
+					errors.LogError(context.Background(), "ignore invalid geosite entry in ", v.Geosite.File, ":", v.Geosite.Code, " at index ", j, ", ", err)
+					continue
+				}
+				g.Add(m, uint32(i))
+			}
 		default:
 			panic("unknown domain rule type")
 		}
@@ -94,45 +102,55 @@ func (f *MphDomainMatcherFactory) BuildMatcher(rules []*DomainRule) (DomainMatch
 		return nil, err
 	}
 	if key != "" {
-		f.shared.Store(key, g)
+		f.shared[key] = g
 	}
 	return g, nil
 }
 
-type CompactMphDomainMatcherFactory struct {
+type CompactDomainMatcherFactory struct {
 	sync.Mutex
-	shared *utils.WeakCacheMap[string, strmatcher.MphValueMatcher]
+	shared map[string]strmatcher.MatcherSet // TODO: cleanup
 }
 
-func (f *CompactMphDomainMatcherFactory) getOrCreateFrom(rule *GeoSiteRule) (*strmatcher.MphValueMatcher, error) {
+func (f *CompactDomainMatcherFactory) getOrCreateFrom(rule *GeoSiteRule) (strmatcher.MatcherSet, error) {
 	key := rule.File + ":" + rule.Code + "@" + rule.Attrs
 
 	f.Lock()
 	defer f.Unlock()
 
-	if s, ok := f.shared.Load(key); ok {
+	if s := f.shared[key]; s != nil {
 		errors.LogDebug(context.Background(), "geodata geosite matcher cache HIT ", key)
 		return s, nil
 	}
 	errors.LogDebug(context.Background(), "geodata geosite matcher cache MISS ", key)
 
-	s := strmatcher.NewMphValueMatcher()
+	s := strmatcher.NewLinearAnyMatcher()
-	if err := loadSiteMatchers(rule, func(m strmatcher.Matcher) { s.Add(m, 0) }); err != nil {
+	domains, err := loadSiteWithAttrs(rule.File, rule.Code, rule.Attrs)
+	if err != nil {
 		return nil, err
 	}
-	if err := s.Build(); err != nil {
+	for i, d := range domains {
-		return nil, err
+		domains[i] = nil // peak mem
+		m, err := parseDomain(d)
+		if err != nil {
+			errors.LogError(context.Background(), "ignore invalid geosite entry in ", rule.File, ":", rule.Code, " at index ", i, ", ", err)
+			continue
+		}
+		s.Add(m)
 	}
-	f.shared.Store(key, s)
+	f.shared[key] = s
-	return s, nil
+	return s, err
 }
 
 // BuildMatcher implements DomainMatcherFactory.
-func (f *CompactMphDomainMatcherFactory) BuildMatcher(rules []*DomainRule) (DomainMatcher, error) {
+func (f *CompactDomainMatcherFactory) BuildMatcher(rules []*DomainRule) (DomainMatcher, error) {
 	if len(rules) == 0 {
 		return nil, errors.New("empty domain rule list")
 	}
-	compact := new(CompactMphDomainMatcher)
+	compact := &CompactDomainMatcher{
+		matchers: make([]strmatcher.MatcherSet, 0, len(rules)),
+		values:   make([]uint32, 0, len(rules)),
+	}
 	for i, r := range rules {
 		switch v := r.Value.(type) {
 		case *DomainRule_Custom:
@@ -149,7 +167,8 @@ func (f *CompactMphDomainMatcherFactory) BuildMatcher(rules []*DomainRule) (Doma
 			if err != nil {
 				return nil, err
 			}
-			compact.combiner.Add(m, uint32(i))
+			compact.matchers = append(compact.matchers, m)
+			compact.values = append(compact.values, uint32(i))
 		default:
 			panic("unknown domain rule type")
 		}
@@ -157,40 +176,37 @@ func (f *CompactMphDomainMatcherFactory) BuildMatcher(rules []*DomainRule) (Doma
 	return compact, nil
 }
 
-type CompactMphDomainMatcher struct {
+type CompactDomainMatcher struct {
 	custom   strmatcher.ValueMatcher
-	combiner strmatcher.MphValueMatcherCombiner
+	matchers []strmatcher.MatcherSet
+	values   []uint32
 }
 
 // Match implements DomainMatcher.
-func (c *CompactMphDomainMatcher) Match(input string) []uint32 {
+func (c *CompactDomainMatcher) Match(input string) []uint32 {
-	result := c.combiner.Match(input)
+	var result []uint32
 	if c.custom != nil {
-		result = append(c.custom.Match(input), result...)
+		result = append(result, c.custom.Match(input)...)
+	}
+	for i, m := range c.matchers {
+		if m.MatchAny(input) {
+			result = append(result, c.values[i])
+		}
 	}
 	return result
 }
 
 // MatchAny implements DomainMatcher.
-func (c *CompactMphDomainMatcher) MatchAny(input string) bool {
+func (c *CompactDomainMatcher) MatchAny(input string) bool {
 	if c.custom != nil && c.custom.MatchAny(input) {
 		return true
 	}
-	return c.combiner.MatchAny(input)
+	for _, m := range c.matchers {
-}
+		if m.MatchAny(input) {
-
+			return true
-// loadSiteMatchers calls add with a matcher for every domain of the geosite rule and logs the invalid ones.
-func loadSiteMatchers(rule *GeoSiteRule, add func(strmatcher.Matcher)) error {
-	i := 0
-	return loadSite(rule.File, rule.Code, rule.Attrs, func(t Domain_Type, value []byte) {
-		m, err := parseDomain(&Domain{Type: t, Value: string(value)})
-		if err != nil {
-			errors.LogError(context.Background(), "ignore invalid geosite entry in ", rule.File, ":", rule.Code, " at index ", i, ", ", err)
-		} else {
-			add(m)
 		}
-		i++
+	}
-	})
+	return false
 }
 
 func parseDomain(d *Domain) (strmatcher.Matcher, error) {
@@ -203,7 +219,7 @@ func parseDomain(d *Domain) (strmatcher.Matcher, error) {
 	case Domain_Regex:
 		return strmatcher.Regex.New(d.Value)
 	case Domain_Domain:
-		return strmatcher.Domain.New(strings.ToLower(d.Value))
+		return strmatcher.Domain.New(d.Value)
 	case Domain_Full:
 		return strmatcher.Full.New(strings.ToLower(d.Value))
 	default:
@@ -214,8 +230,8 @@ func parseDomain(d *Domain) (strmatcher.Matcher, error) {
 func newDomainMatcherFactory() DomainMatcherFactory {
 	switch runtime.GOOS {
 	case "ios", "android":
-		return &CompactMphDomainMatcherFactory{shared: utils.NewWeakCacheMap[string, strmatcher.MphValueMatcher]()}
+		return &CompactDomainMatcherFactory{shared: make(map[string]strmatcher.MatcherSet)}
 	default:
-		return &MphDomainMatcherFactory{shared: utils.NewWeakCacheMap[string, strmatcher.MphValueMatcher]()}
+		return &MphDomainMatcherFactory{shared: make(map[string]strmatcher.MatcherGroup)}
 	}
 }

common/geodata/domain_matcher_test.go

@@ -4,15 +4,13 @@ import (
 	"path/filepath"
 	"reflect"
 	"slices"
-	"sync"
 	"testing"
 
 	"github.com/xtls/xray-core/common/geodata/strmatcher"
-	"github.com/xtls/xray-core/common/utils"
 )
 
 func TestCompactDomainMatcher_PreservesCustomRuleIndices(t *testing.T) {
-	factory := &CompactMphDomainMatcherFactory{shared: utils.NewWeakCacheMap[string, strmatcher.MphValueMatcher]()}
+	factory := &CompactDomainMatcherFactory{shared: make(map[string]strmatcher.MatcherSet)}
 	matcher, err := factory.BuildMatcher([]*DomainRule{
 		{Value: &DomainRule_Custom{Custom: &Domain{Type: Domain_Full, Value: "example.com"}}},
 		{Value: &DomainRule_Custom{Custom: &Domain{Type: Domain_Domain, Value: "example.com"}}},
@@ -33,7 +31,7 @@ func TestCompactDomainMatcher_PreservesCustomRuleIndices(t *testing.T) {
 func TestCompactDomainMatcher_PreservesMixedRuleIndices(t *testing.T) {
 	t.Setenv("xray.location.asset", filepath.Join("..", "..", "resources"))
 
-	factory := &CompactMphDomainMatcherFactory{shared: utils.NewWeakCacheMap[string, strmatcher.MphValueMatcher]()}
+	factory := &CompactDomainMatcherFactory{shared: make(map[string]strmatcher.MatcherSet)}
 	matcher, err := factory.BuildMatcher([]*DomainRule{
 		{Value: &DomainRule_Geosite{Geosite: &GeoSiteRule{File: DefaultGeoSiteDat, Code: "CN"}}},
 		{Value: &DomainRule_Custom{Custom: &Domain{Type: Domain_Full, Value: "163.com"}}},
@@ -52,11 +50,10 @@ func TestCompactDomainMatcher_PreservesMixedRuleIndices(t *testing.T) {
 }
 
 func TestMphDomainMatcher_MatchReturnsDetachedSlice(t *testing.T) {
-	matcher, err := (&MphDomainMatcherFactory{shared: utils.NewWeakCacheMap[string, strmatcher.MphValueMatcher]()}).
+	matcher, err := (&MphDomainMatcherFactory{shared: make(map[string]strmatcher.MatcherGroup)}).BuildMatcher([]*DomainRule{
-		BuildMatcher([]*DomainRule{
+		{Value: &DomainRule_Custom{Custom: &Domain{Type: Domain_Full, Value: "example.com"}}},
-			{Value: &DomainRule_Custom{Custom: &Domain{Type: Domain_Full, Value: "example.com"}}},
+		{Value: &DomainRule_Custom{Custom: &Domain{Type: Domain_Domain, Value: "example.com"}}},
-			{Value: &DomainRule_Custom{Custom: &Domain{Type: Domain_Domain, Value: "example.com"}}},
+	})
-		})
 	if err != nil {
 		t.Fatalf("BuildMatcher() failed: %v", err)
 	}
@@ -73,76 +70,3 @@ func TestMphDomainMatcher_MatchReturnsDetachedSlice(t *testing.T) {
 		t.Fatalf("Match() after caller mutation = %v, want %v", gotAgain, []uint32{0, 1})
 	}
 }
-
-// DNS sorts every Match result in place, so a matcher must never hand out a
-// slice it keeps, also when only its keyword or regex part matches.
-func TestDomainMatcher_MatchResultsCanBeSortedConcurrently(t *testing.T) {
-	t.Setenv("xray.location.asset", filepath.Join("..", "..", "resources"))
-
-	rules := []*DomainRule{
-		{Value: &DomainRule_Custom{Custom: &Domain{Type: Domain_Full, Value: "example.com"}}},
-		{Value: &DomainRule_Custom{Custom: &Domain{Type: Domain_Domain, Value: "example.com"}}},
-		{Value: &DomainRule_Custom{Custom: &Domain{Type: Domain_Substr, Value: "exam"}}},
-		{Value: &DomainRule_Custom{Custom: &Domain{Type: Domain_Regex, Value: `^ex.*\.org$`}}},
-		{Value: &DomainRule_Custom{Custom: &Domain{Type: Domain_Substr, Value: "exam"}}},
-		{Value: &DomainRule_Geosite{Geosite: &GeoSiteRule{File: DefaultGeoSiteDat, Code: "CN"}}},
-		{Value: &DomainRule_Custom{Custom: &Domain{Type: Domain_Full, Value: "only.full.test"}}},
-	}
-	cases := []struct {
-		input string
-		want  []uint32
-	}{
-		{"example.com", []uint32{0, 1, 2, 4}},
-		{"www.example.com", []uint32{1, 2, 4}},
-		{"exam.net", []uint32{2, 4}}, // keyword part only
-		{"example.org", []uint32{2, 3, 4}},
-		{"163.com", []uint32{5}},
-		{"www.163.com", []uint32{5}},
-		{"only.full.test", []uint32{6}}, // full part only
-		{"nomatch.test", nil},
-	}
-	factories := map[string]DomainMatcherFactory{
-		"mph":     &MphDomainMatcherFactory{shared: utils.NewWeakCacheMap[string, strmatcher.MphValueMatcher]()},
-		"compact": &CompactMphDomainMatcherFactory{shared: utils.NewWeakCacheMap[string, strmatcher.MphValueMatcher]()},
-	}
-	for name, factory := range factories {
-		t.Run(name, func(t *testing.T) {
-			matcher, err := factory.BuildMatcher(rules)
-			if err != nil {
-				t.Fatalf("BuildMatcher() failed: %v", err)
-			}
-			for _, c := range cases {
-				got := matcher.Match(c.input)
-				if sorted := slices.Sorted(slices.Values(got)); !slices.Equal(sorted, c.want) {
-					t.Fatalf("Match(%q) = %v, want %v", c.input, sorted, c.want)
-				}
-				got = got[:cap(got)]
-				for j := range got {
-					got[j] = ^uint32(0)
-				}
-				if again := slices.Sorted(slices.Values(matcher.Match(c.input))); !slices.Equal(again, c.want) {
-					t.Fatalf("Match(%q) after caller mutation = %v, want %v", c.input, again, c.want)
-				}
-			}
-
-			var wg sync.WaitGroup
-			for range 8 {
-				wg.Add(1)
-				go func() {
-					defer wg.Done()
-					for range 500 {
-						for _, c := range cases {
-							got := matcher.Match(c.input)
-							slices.Sort(got)
-							if !slices.Equal(got, c.want) {
-								t.Errorf("Match(%q) = %v, want %v", c.input, got, c.want)
-								return
-							}
-						}
-					}
-				}()
-			}
-			wg.Wait()
-		})
-	}
-}

common/geodata/domain_registry.go

@@ -6,14 +6,12 @@ import (
 	"sync/atomic"
 
 	"github.com/xtls/xray-core/common/errors"
-	"github.com/xtls/xray-core/common/utils"
-	"github.com/xtls/xray-core/common/uuid"
 )
 
 type DomainRegistry struct {
 	mu       sync.Mutex
 	factory  DomainMatcherFactory
-	matchers *utils.WeakCacheMap[uuid.UUID, DynamicDomainMatcher]
+	matchers []*DynamicDomainMatcher
 }
 
 func (r *DomainRegistry) BuildDomainMatcher(rules []*DomainRule) (DomainMatcher, error) {
@@ -26,7 +24,7 @@ func (r *DomainRegistry) BuildDomainMatcher(rules []*DomainRule) (DomainMatcher,
 	}
 
 	d := NewDynamicDomainMatcher(rules, m)
-	r.matchers.Store(uuid.New(), d)
+	r.matchers = append(r.matchers, d)
 	return d, nil
 }
 
@@ -34,20 +32,15 @@ func (r *DomainRegistry) Reload() error {
 	r.mu.Lock()
 	defer r.mu.Unlock()
 
-	var matchers []*DynamicDomainMatcher
+	errors.LogInfo(context.Background(), "reloading GeoSite data for ", len(r.matchers), " domain matcher(s)")
-	r.matchers.Range(func(_ uuid.UUID, matcher *DynamicDomainMatcher) bool {
-		matchers = append(matchers, matcher)
-		return true
-	})
-	errors.LogInfo(context.Background(), "reloading GeoSite data for ", len(matchers), " domain matcher(s)")
 
 	factory := newDomainMatcherFactory()
 	type reloadEntry struct {
 		dynamic *DynamicDomainMatcher
 		matcher DomainMatcher
 	}
-	reloaded := make([]reloadEntry, len(matchers))
+	reloaded := make([]reloadEntry, len(r.matchers))
-	for i, d := range matchers {
+	for i, d := range r.matchers {
 		m, err := factory.BuildMatcher(d.rules)
 		if err != nil {
 			errors.LogErrorInner(context.Background(), err, "failed to reload GeoSite data for domain matcher ", i)
@@ -59,14 +52,13 @@ func (r *DomainRegistry) Reload() error {
 		entry.dynamic.Reload(entry.matcher)
 	}
 	r.factory = factory
-	errors.LogInfo(context.Background(), "reloaded GeoSite data for ", len(matchers), " domain matcher(s)")
+	errors.LogInfo(context.Background(), "reloaded GeoSite data for ", len(r.matchers), " domain matcher(s)")
 	return nil
 }
 
 func newDomainRegistry() *DomainRegistry {
 	return &DomainRegistry{
-		factory:  newDomainMatcherFactory(),
+		factory: newDomainMatcherFactory(),
-		matchers: utils.NewWeakCacheMap[uuid.UUID, DynamicDomainMatcher](),
 	}
 }
 

common/geodata/geodat_loader.go

@@ -5,14 +5,11 @@ import (
 	"bytes"
 	"io"
 	"runtime"
-	"slices"
 	"strings"
-	"unicode/utf8"
 
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/platform/filesystem"
 
-	"google.golang.org/protobuf/encoding/protowire"
 	"google.golang.org/protobuf/proto"
 )
 
@@ -55,56 +52,17 @@ func loadIP(file, code string) ([]*CIDR, error) {
 	return geoip.Cidr, nil
 }
 
-// loadSite calls fn, in file order, with the type and value of every domain of the geosite code
+func loadSite(file, code string) ([]*Domain, error) {
-// that has all the "@"-separated attrs. It decodes the entry while reading the file instead of
+	bs, err := loadFile(file, code)
-// unmarshalling it into a []*Domain, so value is only valid during fn.
-func loadSite(file, code, attrs string, fn func(Domain_Type, []byte)) error {
-	runtime.GC() // peak mem
-	r, err := filesystem.OpenAsset(file)
 	if err != nil {
-		return errors.New("failed to open ", file).Base(err)
+		return nil, err
 	}
-	defer r.Close()
+	defer runtime.GC() // peak mem
-	br := bufio.NewReaderSize(r, 64*1024)
+	var geosite GeoSite
-	n, err := seek(br, []byte(code))
+	if err := proto.Unmarshal(bs, &geosite); err != nil {
-	if err != nil {
+		return nil, errors.New("error unmarshal Site in ", file, ":", code).Base(err)
-		return errors.New("failed to load code ", code, " from ", file).Base(err)
 	}
-	loadErr := func(err error) error {
+	return geosite.Domain, nil
-		if err == io.EOF {
-			err = io.ErrUnexpectedEOF
-		}
-		return errors.New("failed to load code ", code, " from ", file).Base(err)
-	}
-	unmarshalErr := func(err error) error {
-		return errors.New("error unmarshal Site in ", file, ":", code).Base(err)
-	}
-	d := newSiteDecoder(attrs, fn)
-	for n > 0 {
-		w, err := br.Peek(min(n, br.Size()))
-		if err != nil {
-			return loadErr(err)
-		}
-		used, err := d.decode(w, len(w) < n)
-		if err != nil {
-			return unmarshalErr(err)
-		}
-		if used == 0 {
-			break // a field longer than the buffer
-		}
-		br.Discard(used)
-		n -= used
-	}
-	if n > 0 {
-		w := make([]byte, n)
-		if _, err := io.ReadFull(br, w); err != nil {
-			return loadErr(err)
-		}
-		if _, err := d.decode(w, false); err != nil {
-			return unmarshalErr(err)
-		}
-	}
-	return nil
 }
 
 func decodeVarint(br *bufio.Reader) (uint64, error) {
@@ -124,63 +82,68 @@ func decodeVarint(br *bufio.Reader) (uint64, error) {
 }
 
 func find(r io.Reader, code []byte, readBody bool) ([]byte, error) {
-	br := bufio.NewReaderSize(r, 64*1024)
-	bodyL, err := seek(br, code)
-	if err != nil || !readBody {
-		return nil, err
-	}
-	out := make([]byte, bodyL)
-	if _, err := io.ReadFull(br, out); err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-// seek advances br to the body of the entry for code and returns the body length.
-func seek(br *bufio.Reader, code []byte) (int, error) {
 	codeL := len(code)
 	if codeL == 0 {
-		return 0, errors.New("empty code")
+		return nil, errors.New("empty code")
 	}
+
+	br := bufio.NewReaderSize(r, 64*1024)
 	need := 2 + codeL // TODO: if code too long
+	prefixBuf := make([]byte, need)
 
 	for {
 		if _, err := br.ReadByte(); err != nil {
-			return 0, err
+			return nil, err
 		}
 
 		x, err := decodeVarint(br)
 		if err != nil {
-			return 0, err
+			return nil, err
 		}
 		bodyL := int(x)
 		if bodyL <= 0 {
-			return 0, errors.New("invalid body length: ", bodyL)
+			return nil, errors.New("invalid body length: ", bodyL)
 		}
 
-		// Peek no more than the buffer holds: a code longer than the buffer cannot match a single
+		prefixL := bodyL
-		// length byte anyway, so a short peek only skips it, as base find (io.ReadFull) does.
+		if prefixL > need {
-		prefix, err := br.Peek(min(bodyL, need, br.Size()))
+			prefixL = need
-		if err != nil {
+		}
-			if err == io.EOF && len(prefix) > 0 {
+		prefix := prefixBuf[:prefixL]
-				err = io.ErrUnexpectedEOF // as io.ReadFull
+		if _, err := io.ReadFull(br, prefix); err != nil {
+			return nil, err
+		}
+
+		match := false
+		if bodyL >= need {
+			if int(prefix[1]) == codeL && bytes.Equal(prefix[2:need], code) {
+				if !readBody {
+					return nil, nil
+				}
+				match = true
 			}
-			return 0, err
 		}
-		if bodyL >= need && len(prefix) >= need && int(prefix[1]) == codeL && bytes.Equal(prefix[2:], code) {
+
-			return bodyL, nil
+		remain := bodyL - prefixL
+		if match {
+			out := make([]byte, bodyL)
+			copy(out, prefix)
+			if remain > 0 {
+				if _, err := io.ReadFull(br, out[prefixL:]); err != nil {
+					return nil, err
+				}
+			}
+			return out, nil
 		}
-		if _, err := br.Discard(bodyL); err != nil {
+
-			return 0, err
+		if remain > 0 {
+			if _, err := br.Discard(remain); err != nil {
+				return nil, err
+			}
 		}
 	}
 }
 
-// AttributeMatcher, HasAttrMatcher, AllAttrsMatcher and NewAllAttrsMatcher are the exported
-// attribute helpers that have been part of this package's API since #5814. The streaming loader
-// above filters attributes itself without building a *Domain, so it does not use them, but they
-// are kept for external callers. Their behaviour is unchanged.
-
 type AttributeMatcher interface {
 	Match(*Domain) bool
 }
@@ -222,137 +185,23 @@ func NewAllAttrsMatcher(attrs string) AttributeMatcher {
 	return m
 }
 
-var errInvalidUTF8 = errors.New("string field contains invalid UTF-8")
+func loadSiteWithAttrs(file, code, attrs string) ([]*Domain, error) {
+	domains, err := loadSite(file, code)
+	if err != nil {
+		return nil, err
+	}
 
-type siteDecoder struct {
+	matcher := NewAllAttrsMatcher(attrs)
-	want []string
+	if matcher == nil {
-	has  []bool
+		return domains, nil
-	fn   func(Domain_Type, []byte)
+	}
-}
 
-func newSiteDecoder(attrs string, fn func(Domain_Type, []byte)) *siteDecoder {
+	filtered := make([]*Domain, 0, len(domains))
-	d := &siteDecoder{fn: fn}
+	for _, d := range domains {
-	if attrs != "" {
+		if matcher.Match(d) {
-		d.want = strings.Split(attrs, "@")
+			filtered = append(filtered, d)
-		d.has = make([]bool, len(d.want))
+		}
 	}
-	return d
-}
 
-// decode walks the whole fields at the start of b, a part of an encoded GeoSite (see geodat.proto),
+	return filtered, nil
-// calls fn for every domain that has all attrs and returns how many bytes it used. A field cut off
-// by the end of b is an error unless more is set. It accepts and rejects what proto.Unmarshal does.
-func (d *siteDecoder) decode(b []byte, more bool) (int, error) {
-	used := 0
-	for used < len(b) {
-		f, n, err := consumeField(b[used:])
-		if err == io.ErrUnexpectedEOF && more {
-			break
-		}
-		if err != nil {
-			return used, err
-		}
-		used += n
-		if f.typ != protowire.BytesType {
-			continue
-		}
-		switch f.num {
-		case 1: // code
-			if !utf8.Valid(f.v) {
-				return used, errInvalidUTF8
-			}
-		case 2: // domain
-			t, value, err := decodeDomain(f.v, d.want, d.has)
-			if err != nil {
-				return used, err
-			}
-			if !slices.Contains(d.has, false) {
-				d.fn(t, value)
-			}
-		}
-	}
-	return used, nil
-}
-
-// decodeDomain decodes an encoded Domain and sets has[i] if one of its attributes has the key want[i].
-func decodeDomain(b []byte, want []string, has []bool) (t Domain_Type, value []byte, err error) {
-	clear(has)
-	for len(b) > 0 {
-		f, n, err := consumeField(b)
-		if err != nil {
-			return 0, nil, err
-		}
-		b = b[n:]
-		switch {
-		case f.num == 1 && f.typ == protowire.VarintType: // type
-			t = Domain_Type(f.x)
-		case f.num == 2 && f.typ == protowire.BytesType: // value
-			if !utf8.Valid(f.v) {
-				return 0, nil, errInvalidUTF8
-			}
-			value = f.v
-		case f.num == 3 && f.typ == protowire.BytesType: // attribute
-			key, err := decodeAttributeKey(f.v)
-			if err != nil {
-				return 0, nil, err
-			}
-			for i, w := range want {
-				if string(key) == w {
-					has[i] = true
-				}
-			}
-		}
-	}
-	return t, value, nil
-}
-
-// decodeAttributeKey returns the key of an encoded Domain.Attribute.
-func decodeAttributeKey(b []byte) ([]byte, error) {
-	var key []byte
-	for len(b) > 0 {
-		f, n, err := consumeField(b)
-		if err != nil {
-			return nil, err
-		}
-		b = b[n:]
-		if f.num == 1 && f.typ == protowire.BytesType {
-			if !utf8.Valid(f.v) {
-				return nil, errInvalidUTF8
-			}
-			key = f.v
-		}
-	}
-	return key, nil
-}
-
-type protoField struct {
-	num protowire.Number
-	typ protowire.Type
-	v   []byte // payload of a length-delimited field
-	x   uint64 // value of a varint field
-}
-
-// consumeField parses the first field of an encoded message and returns it with its length.
-func consumeField(b []byte) (protoField, int, error) {
-	num, typ, n := protowire.ConsumeTag(b)
-	if n < 0 {
-		return protoField{}, 0, protowire.ParseError(n)
-	}
-	if num > protowire.MaxValidNumber {
-		return protoField{}, 0, errors.New("invalid field number ", num)
-	}
-	f := protoField{num: num, typ: typ}
-	var m int
-	switch typ {
-	case protowire.BytesType:
-		f.v, m = protowire.ConsumeBytes(b[n:])
-	case protowire.VarintType:
-		f.x, m = protowire.ConsumeVarint(b[n:])
-	default:
-		m = protowire.ConsumeFieldValue(num, typ, b[n:])
-	}
-	if m < 0 {
-		return protoField{}, 0, protowire.ParseError(m)
-	}
-	return f, n + m, nil
 }

common/geodata/geodat_loader_test.go

@@ -1,283 +0,0 @@
-package geodata
-
-import (
-	"fmt"
-	"os"
-	"path/filepath"
-	"slices"
-	"strings"
-	"testing"
-
-	"google.golang.org/protobuf/encoding/protowire"
-	"google.golang.org/protobuf/proto"
-)
-
-type siteEntry struct {
-	Type  Domain_Type
-	Value string
-}
-
-// unmarshalSite is what loadSite used to do: proto.Unmarshal, then keep the domains that have all attrs.
-func unmarshalSite(b []byte, attrs string) ([]siteEntry, error) {
-	var site GeoSite
-	if err := proto.Unmarshal(b, &site); err != nil {
-		return nil, err
-	}
-	var entries []siteEntry
-	for _, d := range site.Domain {
-		ok := true
-		for _, key := range strings.Split(attrs, "@") {
-			ok = ok && (attrs == "" || slices.ContainsFunc(d.Attribute, func(a *Domain_Attribute) bool { return a.Key == key }))
-		}
-		if ok {
-			entries = append(entries, siteEntry{d.Type, d.Value})
-		}
-	}
-	return entries, nil
-}
-
-func checkDecodeSite(t *testing.T, name string, b []byte, attrs string) {
-	t.Helper()
-	want, wantErr := unmarshalSite(b, attrs)
-	var got []siteEntry
-	_, err := newSiteDecoder(attrs, func(typ Domain_Type, value []byte) {
-		got = append(got, siteEntry{typ, string(value)})
-	}).decode(b, false)
-	if (err == nil) != (wantErr == nil) {
-		t.Fatalf("%s@%s: error %v, proto.Unmarshal: %v", name, attrs, err, wantErr)
-	}
-	if err == nil && !slices.Equal(got, want) {
-		t.Fatalf("%s@%s: got %v, want %v", name, attrs, got, want)
-	}
-}
-
-func TestDecodeSiteMatchesUnmarshal(t *testing.T) {
-	bs, err := os.ReadFile(filepath.Join("..", "..", "resources", DefaultGeoSiteDat))
-	if err != nil {
-		t.Fatal(err)
-	}
-	for len(bs) > 0 {
-		num, typ, n := protowire.ConsumeTag(bs)
-		if n < 0 || num != 1 || typ != protowire.BytesType {
-			t.Fatal("unexpected GeoSiteList field")
-		}
-		entry, m := protowire.ConsumeBytes(bs[n:])
-		if m < 0 {
-			t.Fatal(protowire.ParseError(m))
-		}
-		bs = bs[n+m:]
-
-		var site GeoSite
-		if err := proto.Unmarshal(entry, &site); err != nil {
-			t.Fatal(err)
-		}
-		queries := []string{"", "none"}
-		for _, d := range site.Domain {
-			for _, a := range d.Attribute {
-				if !slices.Contains(queries, a.Key) {
-					queries = append(queries, a.Key, a.Key+"@none")
-				}
-			}
-		}
-		for _, attrs := range queries {
-			checkDecodeSite(t, site.Code, entry, attrs)
-		}
-	}
-}
-
-func TestDecodeSiteUnusualEncodings(t *testing.T) {
-	field := func(num protowire.Number, v []byte) []byte {
-		return protowire.AppendBytes(protowire.AppendTag(nil, num, protowire.BytesType), v)
-	}
-	typ := func(v Domain_Type) []byte {
-		return protowire.AppendVarint(protowire.AppendTag(nil, 1, protowire.VarintType), uint64(v))
-	}
-	value := func(s string) []byte { return field(2, []byte(s)) }
-	attr := func(keys ...string) []byte {
-		var b []byte
-		for _, k := range keys {
-			b = append(b, field(1, []byte(k))...)
-		}
-		return field(3, b)
-	}
-	domain := func(fields ...[]byte) []byte { return field(2, slices.Concat(fields...)) }
-	unknown := protowire.AppendFixed32(protowire.AppendTag(nil, 9, protowire.Fixed32Type), 1)
-
-	for name, b := range map[string][]byte{
-		"unknown field":   domain(typ(Domain_Full), unknown, value("example.com")),
-		"repeated value":  domain(value("a.com"), typ(Domain_Full), value("b.com")),
-		"repeated type":   domain(typ(Domain_Full), value("a.com"), typ(Domain_Regex)),
-		"repeated key":    domain(value("a.com"), attr("cn", "ads")),
-		"type as bytes":   domain(field(1, []byte("x")), value("a.com")),
-		"no value":        domain(typ(Domain_Domain), attr("cn")),
-		"truncated":       domain(typ(Domain_Full), value("example.com"))[:10],
-		"invalid utf8":    domain(value("example.\xff")),
-		"invalid key":     domain(value("a.com"), attr("\xff")),
-		"bad field":       protowire.AppendVarint(protowire.AppendTag(nil, protowire.MaxValidNumber+1, protowire.VarintType), 1),
-		"stray end group": protowire.AppendTag(nil, 5, protowire.EndGroupType),
-	} {
-		for _, attrs := range []string{"", "cn", "ads", "cn@ads"} {
-			checkDecodeSite(t, name, b, attrs)
-		}
-	}
-}
-
-// TestLoadSiteReadsInPieces covers what real lists never do: an entry far longer than the read
-// buffer, with a field longer than the buffer in the middle, and a file cut short.
-func TestLoadSiteReadsInPieces(t *testing.T) {
-	site := &GeoSite{Code: "BIG"}
-	for i := range 5000 {
-		d := &Domain{Type: Domain_Domain, Value: strings.Repeat("x", i%40) + ".example.com"}
-		if i%3 == 0 {
-			d.Attribute = []*Domain_Attribute{{Key: "cn"}}
-		}
-		if i == 2500 {
-			d = &Domain{Type: Domain_Regex, Value: strings.Repeat("a", 100_000)}
-		}
-		site.Domain = append(site.Domain, d)
-	}
-	list := &GeoSiteList{Entry: []*GeoSite{{Code: "SMALL", Domain: []*Domain{{Type: Domain_Full, Value: "a.com"}}}, site}}
-	bs, err := proto.Marshal(list)
-	if err != nil {
-		t.Fatal(err)
-	}
-	entry, err := proto.Marshal(site)
-	if err != nil {
-		t.Fatal(err)
-	}
-	dir := t.TempDir()
-	t.Setenv("xray.location.asset", dir)
-	write := func(b []byte) {
-		if err := os.WriteFile(filepath.Join(dir, "big.dat"), b, 0o644); err != nil {
-			t.Fatal(err)
-		}
-	}
-	for _, attrs := range []string{"", "cn"} {
-		want, _ := unmarshalSite(entry, attrs)
-		var got []siteEntry
-		write(bs)
-		err := loadSite("big.dat", "BIG", attrs, func(typ Domain_Type, value []byte) {
-			got = append(got, siteEntry{typ, string(value)})
-		})
-		if err != nil || !slices.Equal(got, want) {
-			t.Fatalf("attrs %q: %d entries, want %d, error %v", attrs, len(got), len(want), err)
-		}
-		for _, cut := range []int{30_000, len(bs) - 150_000, len(bs) - 1} {
-			write(bs[:cut])
-			if err := loadSite("big.dat", "BIG", attrs, func(Domain_Type, []byte) {}); err == nil {
-				t.Fatalf("file cut at %d of %d: no error", cut, len(bs))
-			}
-		}
-	}
-}
-
-// oneEntryGeoSiteFile wraps an encoded GeoSite as a one-entry GeoSiteList, the file loadSite reads.
-func oneEntryGeoSiteFile(entry []byte) []byte {
-	return protowire.AppendBytes(protowire.AppendTag(nil, 1, protowire.BytesType), entry)
-}
-
-// TestLoadSiteWindowedMatchesSingleShot checks that the windowed reader in loadSite (its Peek/Discard
-// loop, the more-break when a field is cut by a window edge, the used==0 fallback for a field longer
-// than the buffer, and the tail path) reaches exactly the same result as decoding the whole entry at
-// once, for a category several 64 KiB windows long, valid and then mutated near a window edge and
-// early in the file: same error-or-not, and the same emitted (type, value) sequence when both accept.
-func TestLoadSiteWindowedMatchesSingleShot(t *testing.T) {
-	const window = 64 * 1024
-	site := &GeoSite{Code: "BIG"}
-	for i := range 12000 { // ~250 KiB, four windows
-		d := &Domain{Type: Domain_Domain, Value: fmt.Sprintf("host%d.%s.example.com", i, strings.Repeat("y", i%30))}
-		if i%3 == 0 {
-			d.Attribute = []*Domain_Attribute{{Key: "cn"}}
-		}
-		site.Domain = append(site.Domain, d)
-	}
-	// a field longer than the buffer, straddling the third window, to force the used==0 fallback
-	site.Domain = slices.Insert(site.Domain, 8000, &Domain{Type: Domain_Regex, Value: strings.Repeat("a", 90_000)})
-	entry, err := proto.Marshal(site)
-	if err != nil {
-		t.Fatal(err)
-	}
-	dir := t.TempDir()
-	t.Setenv("xray.location.asset", dir)
-
-	// mutations of the encoded entry: unchanged, a byte flipped at several offsets (early windows and
-	// either side of a window edge), and truncations at the same places.
-	type mut struct {
-		name string
-		make func([]byte) []byte
-	}
-	muts := []mut{{"valid", func(b []byte) []byte { return b }}}
-	for _, off := range []int{3, 40, 4000, window - 1, window, window + 1, 2*window - 2, 2 * window} {
-		if off < len(entry) {
-			off := off
-			muts = append(muts, mut{fmt.Sprintf("flip@%d", off), func(b []byte) []byte {
-				c := slices.Clone(b)
-				c[off] ^= 0xff
-				return c
-			}})
-			muts = append(muts, mut{fmt.Sprintf("cut@%d", off), func(b []byte) []byte { return slices.Clone(b[:off]) }})
-		}
-	}
-
-	for _, attrs := range []string{"", "cn"} {
-		for _, m := range muts {
-			e := m.make(entry)
-			// single-shot reference: decode the whole entry in one call
-			var want []siteEntry
-			_, wantErr := newSiteDecoder(attrs, func(typ Domain_Type, value []byte) {
-				want = append(want, siteEntry{typ, string(value)})
-			}).decode(e, false)
-			// windowed: loadSite reads the file 64 KiB at a time
-			if err := os.WriteFile(filepath.Join(dir, "w.dat"), oneEntryGeoSiteFile(e), 0o644); err != nil {
-				t.Fatal(err)
-			}
-			var got []siteEntry
-			gotErr := loadSite("w.dat", "BIG", attrs, func(typ Domain_Type, value []byte) {
-				got = append(got, siteEntry{typ, string(value)})
-			})
-			if (gotErr == nil) != (wantErr == nil) {
-				t.Fatalf("%s attrs=%q: windowed err %v, single-shot err %v", m.name, attrs, gotErr, wantErr)
-			}
-			if gotErr == nil && !slices.Equal(got, want) {
-				t.Fatalf("%s attrs=%q: windowed got %d entries, single-shot %d", m.name, attrs, len(got), len(want))
-			}
-		}
-	}
-}
-
-// TestLoadSiteLongCode covers a geosite entry whose code is longer than the 64 KiB read buffer. seek
-// must skip it (find compares a single length byte, so it never matches such a code) and still find a
-// later entry, and looking the long code up must fail cleanly, like a missing code, not panic.
-func TestLoadSiteLongCode(t *testing.T) {
-	longCode := strings.Repeat("Z", 70000)
-	list := &GeoSiteList{Entry: []*GeoSite{
-		{Code: "FIRST", Domain: []*Domain{{Type: Domain_Full, Value: "first.com"}}},
-		{Code: longCode, Domain: []*Domain{{Type: Domain_Full, Value: "huge.com"}}},
-		{Code: "AFTER", Domain: []*Domain{{Type: Domain_Domain, Value: "after.com"}}},
-	}}
-	bs, err := proto.Marshal(list)
-	if err != nil {
-		t.Fatal(err)
-	}
-	dir := t.TempDir()
-	t.Setenv("xray.location.asset", dir)
-	if err := os.WriteFile(filepath.Join(dir, "lc.dat"), bs, 0o644); err != nil {
-		t.Fatal(err)
-	}
-	collect := func(code string) ([]siteEntry, error) {
-		var got []siteEntry
-		err := loadSite("lc.dat", code, "", func(typ Domain_Type, value []byte) {
-			got = append(got, siteEntry{typ, string(value)})
-		})
-		return got, err
-	}
-	if got, err := collect("FIRST"); err != nil || !slices.Equal(got, []siteEntry{{Domain_Full, "first.com"}}) {
-		t.Fatalf("FIRST: %v %v", got, err)
-	}
-	if got, err := collect("AFTER"); err != nil || !slices.Equal(got, []siteEntry{{Domain_Domain, "after.com"}}) {
-		t.Fatalf("AFTER (past the oversized entry): %v %v", got, err)
-	}
-	if _, err := collect(longCode); err == nil {
-		t.Fatal("oversized code: expected a not-found error, got nil")
-	}
-}

common/geodata/ip_matcher.go

@@ -11,7 +11,6 @@ import (
 
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/common/utils"
 
 	"go4.org/netipx"
 )
@@ -807,7 +806,7 @@ func (mm *HeuristicMultiIPMatcher) SetReverse(reverse bool) {
 
 type IPSetFactory struct {
 	sync.Mutex
-	shared *utils.WeakCacheMap[string, IPSet]
+	shared map[string]*IPSet // TODO: cleanup
 }
 
 func (f *IPSetFactory) GetOrCreateFromGeoIPRules(rules []*GeoIPRule) (*IPSet, error) {
@@ -816,7 +815,7 @@ func (f *IPSetFactory) GetOrCreateFromGeoIPRules(rules []*GeoIPRule) (*IPSet, er
 	f.Lock()
 	defer f.Unlock()
 
-	if ipset, ok := f.shared.Load(key); ok {
+	if ipset := f.shared[key]; ipset != nil {
 		errors.LogDebug(context.Background(), "geodata geoip matcher cache HIT ", key)
 		return ipset, nil
 	}
@@ -836,7 +835,7 @@ func (f *IPSetFactory) GetOrCreateFromGeoIPRules(rules []*GeoIPRule) (*IPSet, er
 		return nil
 	})
 	if err == nil {
-		f.shared.Store(key, ipset)
+		f.shared[key] = ipset
 	}
 	return ipset, err
 }
@@ -1019,5 +1018,5 @@ func buildOptimizedIPMatcher(f *IPSetFactory, rules []*IPRule) (IPMatcher, error
 }
 
 func newIPSetFactory() *IPSetFactory {
-	return &IPSetFactory{shared: utils.NewWeakCacheMap[string, IPSet]()}
+	return &IPSetFactory{shared: make(map[string]*IPSet)}
 }

common/geodata/ip_matcher_test.go

@@ -315,7 +315,7 @@ func TestIPMatcherAnyMatchAndMatches(t *testing.T) {
 	}
 
 	if !matcher.AnyMatch([]net.IP{
-		{},
+		net.IP{},
 		ip("1.1.1.1"),
 		ip("8.8.8.8"),
 	}) {
@@ -345,7 +345,7 @@ func TestIPMatcherAnyMatchAndMatches(t *testing.T) {
 
 	if matcher.Matches([]net.IP{
 		ip("8.8.8.8"),
-		{},
+		net.IP{},
 	}) {
 		t.Fatal("expect Matches to be false when any IP is invalid")
 	}
@@ -362,7 +362,7 @@ func TestIPMatcherFilterIPs(t *testing.T) {
 	}
 
 	matched, unmatched := matcher.FilterIPs([]net.IP{
-		{},
+		net.IP{},
 		ip("8.8.8.8"),
 		ip("91.108.255.254"),
 		ip("1.1.1.1"),

common/geodata/ip_registry.go

@@ -7,27 +7,25 @@ import (
 
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/common/utils"
-	"github.com/xtls/xray-core/common/uuid"
 )
 
 type IPRegistry struct {
-	mu       sync.Mutex
+	mu           sync.Mutex
-	factory  *IPSetFactory
+	ipsetFactory *IPSetFactory
-	matchers *utils.WeakCacheMap[uuid.UUID, DynamicIPMatcher]
+	matchers     []*DynamicIPMatcher
 }
 
 func (r *IPRegistry) BuildIPMatcher(rules []*IPRule) (IPMatcher, error) {
 	r.mu.Lock()
 	defer r.mu.Unlock()
 
-	m, err := buildOptimizedIPMatcher(r.factory, rules)
+	m, err := buildOptimizedIPMatcher(r.ipsetFactory, rules)
 	if err != nil {
 		return nil, err
 	}
 
 	d := NewDynamicIPMatcher(rules, m)
-	r.matchers.Store(uuid.New(), d)
+	r.matchers = append(r.matchers, d)
 	return d, nil
 }
 
@@ -35,20 +33,15 @@ func (r *IPRegistry) Reload() error {
 	r.mu.Lock()
 	defer r.mu.Unlock()
 
-	var matchers []*DynamicIPMatcher
+	errors.LogInfo(context.Background(), "reloading GeoIP data for ", len(r.matchers), " IP matcher(s)")
-	r.matchers.Range(func(_ uuid.UUID, matcher *DynamicIPMatcher) bool {
-		matchers = append(matchers, matcher)
-		return true
-	})
-	errors.LogInfo(context.Background(), "reloading GeoIP data for ", len(matchers), " IP matcher(s)")
 
 	factory := newIPSetFactory()
 	type reloadEntry struct {
 		dynamic *DynamicIPMatcher
 		matcher IPMatcher
 	}
-	reloaded := make([]reloadEntry, len(matchers))
+	reloaded := make([]reloadEntry, len(r.matchers))
-	for i, d := range matchers {
+	for i, d := range r.matchers {
 		m, err := buildOptimizedIPMatcher(factory, d.rules)
 		if err != nil {
 			errors.LogErrorInner(context.Background(), err, "failed to reload GeoIP data for IP matcher ", i)
@@ -59,15 +52,14 @@ func (r *IPRegistry) Reload() error {
 	for _, entry := range reloaded {
 		entry.dynamic.Reload(entry.matcher)
 	}
-	r.factory = factory
+	r.ipsetFactory = factory
-	errors.LogInfo(context.Background(), "reloaded GeoIP data for ", len(matchers), " IP matcher(s)")
+	errors.LogInfo(context.Background(), "reloaded GeoIP data for ", len(r.matchers), " IP matcher(s)")
 	return nil
 }
 
 func newIPRegistry() *IPRegistry {
 	return &IPRegistry{
-		factory:  newIPSetFactory(),
+		ipsetFactory: newIPSetFactory(),
-		matchers: utils.NewWeakCacheMap[uuid.UUID, DynamicIPMatcher](),
 	}
 }
 

common/geodata/lua.go

@@ -1,58 +0,0 @@
-package geodata
-
-import (
-	lua "github.com/yuin/gopher-lua"
-	luar "layeh.com/gopher-luar"
-)
-
-// RegisterLua makes xray.geodata available to require in an LState.
-func RegisterLua(L *lua.LState) {
-	L.PreloadModule("xray.geodata", func(L *lua.LState) int {
-		module := L.NewTable()
-
-		module.RawSetString("BuildDomainMatcher", L.NewFunction(func(L *lua.LState) int {
-			parsed, err := ParseDomainRules(luaRules(L), Domain_Domain)
-			if err != nil {
-				L.RaiseError("%v", err)
-				return 0
-			}
-			matcher, err := DomainReg.BuildDomainMatcher(parsed)
-			if err != nil {
-				L.RaiseError("%v", err)
-				return 0
-			}
-			L.Push(luar.New(L, matcher))
-			return 1
-		}))
-
-		module.RawSetString("BuildIPMatcher", L.NewFunction(func(L *lua.LState) int {
-			parsed, err := ParseIPRules(luaRules(L))
-			if err != nil {
-				L.RaiseError("%v", err)
-				return 0
-			}
-			matcher, err := IPReg.BuildIPMatcher(parsed)
-			if err != nil {
-				L.RaiseError("%v", err)
-				return 0
-			}
-			L.Push(luar.New(L, matcher))
-			return 1
-		}))
-		L.Push(module)
-		return 1
-	})
-}
-
-func luaRules(L *lua.LState) []string {
-	rules := make([]string, L.GetTop())
-	for i := range rules {
-		value, ok := L.Get(i + 1).(lua.LString)
-		if !ok {
-			L.RaiseError("geodata rules must be strings")
-			return nil
-		}
-		rules[i] = string(value)
-	}
-	return rules
-}

common/geodata/lua_test.go

@@ -1,66 +0,0 @@
-package geodata
-
-import (
-	"testing"
-
-	"github.com/xtls/xray-core/common/net"
-	lua "github.com/yuin/gopher-lua"
-)
-
-func TestLuaIPMatcher(t *testing.T) {
-	L := lua.NewState()
-	defer L.Close()
-	RegisterLua(L)
-	ip := L.NewUserData()
-	ip.Value = net.ParseIP("127.0.0.1")
-	L.SetGlobal("ip", ip)
-	ips := L.NewUserData()
-	ips.Value = []net.IP{ip.Value.(net.IP), net.ParseIP("8.8.8.8")}
-	L.SetGlobal("ips", ips)
-	if err := L.DoString(`
-		local matcher = require("xray.geodata").BuildIPMatcher("127.0.0.0/8", "::1")
-		assert(matcher:Match(ip))
-		assert(matcher:AnyMatch(ips))
-		assert(not matcher:Matches(ips))
-		local matched, unmatched = matcher:FilterIPs(ips)
-		assert(type(matched) == "userdata" and type(unmatched) == "userdata")
-		assert(#matched == 1 and #unmatched == 1)
-	`); err != nil {
-		t.Fatal(err)
-	}
-}
-
-func TestLuaDomainMatcher(t *testing.T) {
-	L := lua.NewState()
-	defer L.Close()
-	RegisterLua(L)
-	if err := L.DoString(`
-		local matcher = require("xray.geodata").BuildDomainMatcher("example.com", "full:other.com")
-		assert(matcher:MatchAny("example.com"))
-		assert(matcher:MatchAny("www.example.com"))
-		assert(matcher:MatchAny("other.com"))
-		assert(not matcher:MatchAny("www.other.com"))
-		assert(#(matcher:Match("www.example.com")) == 1)
-	`); err != nil {
-		t.Fatal(err)
-	}
-}
-
-func TestLuaMatchersRejectInvalidRules(t *testing.T) {
-	for _, tc := range []struct {
-		name   string
-		script string
-	}{
-		{"IP rule", `require("xray.geodata").BuildIPMatcher("not-an-ip")`},
-		{"non-string domain rule", `require("xray.geodata").BuildDomainMatcher("example.com", true)`},
-	} {
-		t.Run(tc.name, func(t *testing.T) {
-			L := lua.NewState()
-			defer L.Close()
-			RegisterLua(L)
-			if err := L.DoString(tc.script); err == nil {
-				t.Fatal("invalid geodata rule was accepted")
-			}
-		})
-	}
-}

common/geodata/rule_parser.go

@@ -138,7 +138,7 @@ func ParseDomainRule(r string, defaultType Domain_Type) (*DomainRule, error) {
 	}
 
 	prefix := 0
-	for _, ext := range [...]string{"ext:", "ext-domain:", "ext-site:"} {
+	for _, ext := range [...]string{"ext:", "ext-domain:"} {
 		if strings.HasPrefix(r, ext) {
 			prefix = len(ext)
 			break
@@ -167,7 +167,7 @@ func ParseDomainRules(rules []string, defaultType Domain_Type) ([]*DomainRule, e
 		}
 
 		prefix := 0
-		for _, ext := range [...]string{"ext:", "ext-domain:", "ext-site:"} {
+		for _, ext := range [...]string{"ext:", "ext-domain:"} {
 			if strings.HasPrefix(r, ext) {
 				prefix = len(ext)
 				break

common/geodata/strmatcher/benchmark_matchers_test.go

@@ -1,7 +1,6 @@
 package strmatcher_test
 
 import (
-	"regexp"
 	"strconv"
 	"testing"
 
@@ -73,64 +72,6 @@ func BenchmarkSubstrMatcher(b *testing.B) {
 	})
 }
 
-func BenchmarkRegexMatcher(b *testing.B) {
-	patterns := []string{ // taken from geosite
-		`(^|\.)91porn\.(best|com|cool|fun|group|party|plus|site|tw|work)$`,
-		`(^|\.)91porn[0-9]{3}\.me$`,
-		`(^|\.)apiproxy-device-prod-nlb-.+\.amazonaws\.com$`,
-		`(^|\.)dualstack\.apiproxy-.+\.amazonaws\.com$`,
-		`(^|\.)aqdk[0-9]{3}\.com$`,
-		`(^|\.)bilibili3(0[1-9]|1[0-2])\.xyz$`,
-		`(^|\.)byyum([3589]|2[235689]|3[34]|4[1-9]|5[1-79]|6[0134679])?\.com$`,
-		`(^|\.)fiftymvapi\..+$`,
-		`(^|\.)gossipfuli[0-9]{3,4}\.xyz$`,
-		`(^|\.)kpkuang\.(bond|fun|info|one|us)$`,
-		`(^|\.)rule34\.(asia|us|world|xxx|xyz)$`,
-		`(^|\.)[a-z][1-9][0-9][a-z]\.com$`,
-		`.+\.awsdns-[0-9][0-9]\.(co\.uk|com|net|org)$`,
-		`.+\.dkr\.ecr\.[^\.]+\.amazonaws\.com$`,
-		`^(.+\.)*zh\.okaapps\.com$`,
-		`^cdn\d-epicgames-\d+\.file\.myqcloud\.com$`,
-		`^chatgpt-async-webps-prod-\S+-\d+\.webpubsub\.azure\.com$`,
-		`^r+[0-9]+(---|\.)sn-(2x3|ni5|j5o)\w{5}\.googlevideo\.com$`,
-		`^speed\.(coe|open)\.ad\.[a-z]{2,6}\.prod\.hosts\.ooklaserver\.net$`,
-		`javdb\d+\.com$`,
-	}
-	domains := []string{
-		"www.google.com", "rr3---sn-4g5edndy.googlevideo.com", "r1---sn-2x3abcde.googlevideo.com", "i.ytimg.com",
-		"graph.facebook.com", "api.twitter.com", "www.baidu.com", "github.com", "objects.githubusercontent.com",
-		"login.microsoftonline.com", "e1234.dscb.akamaiedge.net", "d1a2b3c4d5e6f7.cloudfront.net",
-		"s3.us-east-1.amazonaws.com", "123456789012.dkr.ecr.us-east-1.amazonaws.com", "www.wikipedia.org",
-		"discord.com", "telegram.org", "store.steampowered.com", "www.91porn.com", "ns-1234.awsdns-12.org",
-	}
-	bench := func(b *testing.B, ctor func(pattern string) func(string) bool) {
-		var matchers []func(string) bool
-		for _, p := range patterns {
-			matchers = append(matchers, ctor(p))
-		}
-		b.ResetTimer()
-		for i := 0; i < b.N; i++ {
-			for _, d := range domains {
-				for _, match := range matchers {
-					_ = match(d)
-				}
-			}
-		}
-	}
-	b.Run("regexp", func(b *testing.B) {
-		bench(b, func(pattern string) func(string) bool {
-			return regexp.MustCompile(pattern).MatchString
-		})
-	})
-	b.Run("prefilter", func(b *testing.B) {
-		bench(b, func(pattern string) func(string) bool {
-			m, err := Regex.New(pattern)
-			common.Must(err)
-			return m.Match
-		})
-	})
-}
-
 // Utility functions for benchmark
 
 func benchmarkMatcherType(b *testing.B, t Type, ctor func() MatcherGroup) {

common/geodata/strmatcher/indexmatcher_mph.go

@@ -52,9 +52,7 @@ func (g *MphIndexMatcher) Add(matcher Matcher) uint32 {
 func (g *MphIndexMatcher) Build() error {
 	if g.mph != nil {
 		runtime.GC() // peak mem
-		if err := g.mph.Build(); err != nil {
+		g.mph.Build()
-			return err
-		}
 	}
 	runtime.GC() // peak mem
 	if g.ac != nil {
@@ -66,17 +64,23 @@ func (g *MphIndexMatcher) Build() error {
 
 // Match implements IndexMatcher.Match.
 func (g *MphIndexMatcher) Match(input string) []uint32 {
-	var result []uint32
+	result := make([][]uint32, 0, 5)
 	if g.mph != nil {
-		result = g.mph.Match(input) // a new slice, returned without another copy
+		if matches := g.mph.Match(input); len(matches) > 0 {
+			result = append(result, matches)
+		}
 	}
 	if g.ac != nil {
-		result = append(result, g.ac.Match(input)...)
+		if matches := g.ac.Match(input); len(matches) > 0 {
+			result = append(result, matches)
+		}
 	}
 	if g.regex != nil {
-		result = append(result, g.regex.Match(input)...)
+		if matches := g.regex.Match(input); len(matches) > 0 {
+			result = append(result, matches)
+		}
 	}
-	return result
+	return CompositeMatches(result)
 }
 
 // MatchAny implements IndexMatcher.MatchAny.

common/geodata/strmatcher/indexmatcher_mph_test.go

@@ -78,10 +78,6 @@ func TestMphIndexMatcher(t *testing.T) {
 			Input:  "example.com",
 			Output: []uint32{10, 4},
 		},
-		{
-			Input:  "apis.org",
-			Output: []uint32{2, 6},
-		},
 	}
 	matcherGroup := NewMphIndexMatcher()
 	for _, rule := range rules {
@@ -91,13 +87,8 @@ func TestMphIndexMatcher(t *testing.T) {
 	}
 	matcherGroup.Build()
 	for _, test := range cases {
-		m := matcherGroup.Match(test.Input)
-		if !reflect.DeepEqual(m, test.Output) {
-			t.Error("unexpected output: ", m, " for test case ", test)
-		}
-		clear(m) // the caller owns the result, so this must not change the next one
 		if m := matcherGroup.Match(test.Input); !reflect.DeepEqual(m, test.Output) {
-			t.Error("unexpected output after clearing the previous one: ", m, " for test case ", test)
+			t.Error("unexpected output: ", m, " for test case ", test)
 		}
 	}
 }

common/geodata/strmatcher/matchergroup_mph.go

@@ -1,440 +1,198 @@
 package strmatcher
 
 import (
-	"bytes"
+	"math/bits"
-	"cmp"
+	"runtime"
-	"encoding/binary"
+	"sort"
-	"errors"
-	"math"
-	"slices"
 	"strings"
 	"unsafe"
 )
 
-// Flags of a level1 slot, stored above the record offset.
+// PrimeRK is the prime base used in Rabin-Karp algorithm.
-const (
+const PrimeRK = 16777619
-	mphDomain  = 1 << 31 // matches the pattern and its subdomains
-	mphFull    = 1 << 30 // matches the pattern only
-	mphParent  = 1 << 29 // matches subdomains only, from a pattern with a leading dot
-	mphOffMask = mphParent - 1
-)
 
-// Kinds of an added pattern, indexes of mphKinds.
+// RollingHash calculates the rolling murmurHash of given string based on a provided suffix hash.
-const (
+func RollingHash(hash uint32, input string) uint32 {
-	mphKindFull = iota
+	for i := len(input) - 1; i >= 0; i-- {
-	mphKindParent
+		hash = hash*PrimeRK + uint32(input[i])
-	mphKindDomain
+	}
-)
+	return hash
-
-// mphKinds are the slot flags in the order Match reports their values.
-var mphKinds = [...]uint32{mphFull, mphParent, mphDomain}
-
-// mphMultipliers are odd multipliers for the suffix hash. Build moves to the next one if two patterns collide.
-var mphMultipliers = [...]uint64{0x9e3779b97f4a7c15, 0xc2b2ae3d27d4eb4f, 0x165667b19e3779f9, 0x27d4eb2f165667c5}
-
-var (
-	errMphCollision = errors.New("strmatcher: suffix hash collision in MphMatcherGroup")
-	errMphBuilt     = errors.New("strmatcher: MphMatcherGroup is already built")
-)
-
-type mphEntry struct {
-	off   uint32 // pattern start in buf
-	value uint32
-	n     uint32 // pattern length
-	kind  uint8
 }
 
-// MphMatcherGroup is an implementation of MatcherGroup for Full and Domain matchers.
+// MemHash is the hash function used by go map, it utilizes available hardware instructions(behaves
-// Each distinct pattern is stored once as a record in arena: its length (255 means a uvarint length follows),
+// as aeshash if aes instruction is available).
-// its bytes and, if the group holds more than one distinct value, its values. A minimal perfect hash table
+// With different seed, each MemHash<seed> performs as distinct hash functions.
-// built with hash, displace and compress (http://cmph.sourceforge.net/papers/esa09.pdf) maps a pattern to its
+func MemHash(seed uint32, input string) uint32 {
-// record. Patterns are hashed from the right, so one pass over the input hashes all its parent domains.
+	return uint32(strhash(unsafe.Pointer(&input), uintptr(seed))) // nosemgrep
-type MphMatcherGroup struct {
+}
-	arena  string
-	level0 []uint16 // bucket -> seed
-	level1 []uint32 // slot -> flags | record offset
-	fp     []uint8  // slot -> low byte of its pattern's hash, rejects most misses without reading arena
-	n0, n1 uint32
-	mul    uint64 // multiplier of the suffix hash
-	single uint32 // the only value if !multi
-	multi  bool
 
-	buf     []byte // build only, patterns in Add order
+const (
-	entries []mphEntry
+	mphMatchTypeCount = 2 // Full and Domain
+)
+
+type mphRuleInfo struct {
+	rollingHash uint32
+	matchers    [mphMatchTypeCount][]uint32
+}
+
+// MphMatcherGroup is an implementation of MatcherGroup.
+// It implements Rabin-Karp algorithm and minimal perfect hash table for Full and Domain matcher.
+type MphMatcherGroup struct {
+	rules      []string   // RuleIdx -> pattern string, index 0 reserved for failed lookup
+	values     [][]uint32 // RuleIdx -> registered matcher values for the pattern (Full Matcher takes precedence)
+	level0     []uint32   // RollingHash & Mask -> seed for Memhash
+	level0Mask uint32     // Mask restricting RollingHash to 0 ~ len(level0)
+	level1     []uint32   // Memhash<seed> & Mask -> stored index for rules
+	level1Mask uint32     // Mask for restricting Memhash<seed> to 0 ~ len(level1)
+	ruleInfos  *map[string]mphRuleInfo
 }
 
 func NewMphMatcherGroup() *MphMatcherGroup {
-	return new(MphMatcherGroup)
+	return &MphMatcherGroup{
+		rules:      []string{""},
+		values:     [][]uint32{nil},
+		level0:     nil,
+		level0Mask: 0,
+		level1:     nil,
+		level1Mask: 0,
+		ruleInfos:  &map[string]mphRuleInfo{}, // Only used for building, destroyed after build complete
+	}
 }
 
 // AddFullMatcher implements MatcherGroupForFull.
 func (g *MphMatcherGroup) AddFullMatcher(matcher FullMatcher, value uint32) {
-	g.add(matcher.Pattern(), mphKindFull, value)
+	pattern := strings.ToLower(matcher.Pattern())
+	g.addPattern(0, "", pattern, matcher.Type(), value)
 }
 
 // AddDomainMatcher implements MatcherGroupForDomain.
 func (g *MphMatcherGroup) AddDomainMatcher(matcher DomainMatcher, value uint32) {
-	g.add(matcher.Pattern(), mphKindDomain, value)
+	pattern := strings.ToLower(matcher.Pattern())
+	hash := g.addPattern(0, "", pattern, matcher.Type(), value) // For full domain match
+	g.addPattern(hash, pattern, ".", matcher.Type(), value)     // For partial domain match
 }
 
-func (g *MphMatcherGroup) add(pattern string, kind uint8, value uint32) {
+func (g *MphMatcherGroup) addPattern(suffixHash uint32, suffixPattern string, pattern string, matcherType Type, value uint32) uint32 {
-	if g.arena != "" {
+	fullPattern := pattern + suffixPattern
-		panic(errMphBuilt)
+	info, found := (*g.ruleInfos)[fullPattern]
-	}
+	if !found {
-	pattern = strings.ToLower(pattern)
+		info = mphRuleInfo{rollingHash: RollingHash(suffixHash, pattern)}
-	off := uint32(len(g.buf))
+		g.rules = append(g.rules, fullPattern)
-	g.buf = append(g.buf, pattern...)
+		g.values = append(g.values, nil)
-	g.entries = append(g.entries, mphEntry{off: off, value: value, n: uint32(len(pattern)), kind: kind})
-	if len(pattern) > 0 && pattern[0] == '.' {
-		// ".x" has always matched "*.x" as well, so it also gets a parent-only record for "x"
-		g.entries = append(g.entries, mphEntry{off: off + 1, value: value, n: uint32(len(pattern) - 1), kind: mphKindParent})
 	}
+	info.matchers[matcherType] = append(info.matchers[matcherType], value)
+	(*g.ruleInfos)[fullPattern] = info
+	return info.rollingHash
 }
 
-func (g *MphMatcherGroup) key(i uint32) []byte {
+// Build builds a minimal perfect hash table for insert rules.
-	e := &g.entries[i]
+// Algorithm used: Hash, displace, and compress. See http://cmph.sourceforge.net/papers/esa09.pdf
-	return g.buf[e.off : e.off+e.n]
-}
-
-// Build builds the hash table. It must be called once, after the last Add.
 func (g *MphMatcherGroup) Build() error {
-	if g.arena != "" {
+	ruleCount := len(*g.ruleInfos)
-		return errMphBuilt
+	g.level0 = make([]uint32, nextPow2(ruleCount/4))
-	}
+	g.level0Mask = uint32(len(g.level0) - 1)
-	if uint64(len(g.buf)) > math.MaxUint32 {
+	g.level1 = make([]uint32, nextPow2(ruleCount))
-		return errors.New("too many rules for MphMatcherGroup")
+	g.level1Mask = uint32(len(g.level1) - 1)
-	}
-	recs := g.writeRecords()
-	if len(g.arena) > mphOffMask {
-		return errors.New("too many rules for MphMatcherGroup")
-	}
-	hashes := make([]uint64, len(recs))
-	for _, mul := range mphMultipliers {
-		for i, rec := range recs {
-			hashes[i] = mphMix(mphHash(mul, g.recKey(rec)))
-		}
-		g.mul = mul
-		if err := g.place(recs, hashes); err != errMphCollision {
-			return err
-		}
-	}
-	return errMphCollision
-}
 
-// writeRecords writes one record per distinct pattern to arena and returns flags | offset of each.
+	// Create buckets based on all rule's rolling hash
-func (g *MphMatcherGroup) writeRecords() []uint32 {
+	buckets := make([][]uint32, len(g.level0))
-	g.multi = false
+	for ruleIdx := 1; ruleIdx < len(g.rules); ruleIdx++ { // Traverse rules starting from index 1 (0 reserved for failed lookup)
-	if len(g.entries) > 0 {
+		ruleInfo := (*g.ruleInfos)[g.rules[ruleIdx]]
-		g.single = g.entries[0].value
+		bucketIdx := ruleInfo.rollingHash & g.level0Mask
-		for _, e := range g.entries {
+		buckets[bucketIdx] = append(buckets[bucketIdx], uint32(ruleIdx))
-			if e.value != g.single {
+		g.values[ruleIdx] = append(ruleInfo.matchers[Full], ruleInfo.matchers[Domain]...) // nolint:gocritic
-				g.multi = true
-				break
-			}
-		}
 	}
-	// Equal patterns become neighbours in Add order, so their values keep their priority
+	g.ruleInfos = nil // Set ruleInfos nil to release memory
-	order := make([]uint32, len(g.entries))
+	runtime.GC()      // peak mem
-	for i := range order {
-		order[i] = uint32(i)
-	}
-	slices.SortFunc(order, func(a, b uint32) int {
-		return cmp.Or(bytes.Compare(g.key(a), g.key(b)), cmp.Compare(a, b))
-	})
 
-	size := len(g.buf) + len(g.entries) + 2
+	// Sort buckets in descending order with respect to each bucket's size
-	if g.multi {
+	bucketIdxs := make([]int, len(buckets))
-		size += 3 * len(g.entries)
+	for bucketIdx := range buckets {
+		bucketIdxs[bucketIdx] = bucketIdx
 	}
-	arena := make([]byte, 0, size)
+	sort.Slice(bucketIdxs, func(i, j int) bool { return len(buckets[bucketIdxs[i]]) > len(buckets[bucketIdxs[j]]) })
-	recs := make([]uint32, 0, len(order))
+
-	var vals [len(mphKinds)][]uint32
+	// Exercise Hash, Displace, and Compress algorithm to construct minimal perfect hash table
-	for i := 0; i < len(order); {
+	occupied := make([]bool, len(g.level1)) // Whether a second-level hash has been already used
-		k := g.key(order[i])
+	hashedBucket := make([]uint32, 0, 4)    // Second-level hashes for each rule in a specific bucket
-		for t := range vals {
+	for _, bucketIdx := range bucketIdxs {
-			vals[t] = vals[t][:0]
+		bucket := buckets[bucketIdx]
-		}
+		hashedBucket = hashedBucket[:0]
-		for ; i < len(order) && bytes.Equal(g.key(order[i]), k); i++ {
+		seed := uint32(0)
-			e := &g.entries[order[i]]
+		for len(hashedBucket) != len(bucket) {
-			if !slices.Contains(vals[e.kind], e.value) {
+			for _, ruleIdx := range bucket {
-				vals[e.kind] = append(vals[e.kind], e.value)
+				memHash := MemHash(seed, g.rules[ruleIdx]) & g.level1Mask
-			}
+				if occupied[memHash] { // Collision occurred with this seed
-		}
+					for _, hash := range hashedBucket { // Revert all values in this hashed bucket
-		rec := uint32(len(arena))
+						occupied[hash] = false
-		if len(k) < 255 {
+						g.level1[hash] = 0
-			arena = append(arena, byte(len(k)))
+					}
-		} else {
+					hashedBucket = hashedBucket[:0]
-			arena = binary.AppendUvarint(append(arena, 255), uint64(len(k)))
+					seed++ // Try next seed
-		}
+					break
-		arena = append(arena, k...)
-		for t, v := range vals {
-			if len(v) == 0 {
-				continue
-			}
-			rec |= mphKinds[t]
-			if g.multi {
-				arena = binary.AppendUvarint(arena, uint64(len(v)))
-				for _, x := range v {
-					arena = binary.AppendUvarint(arena, uint64(x))
 				}
+				occupied[memHash] = true
+				g.level1[memHash] = ruleIdx // The final value in the hash table
+				hashedBucket = append(hashedBucket, memHash)
 			}
 		}
-		recs = append(recs, rec)
+		g.level0[bucketIdx] = seed // Displacement value for this bucket
-	}
-	// Lookups may point one byte past a pattern, and an empty group needs a record at offset 0 for empty slots
-	arena = append(arena, 0)
-	if len(recs) == 0 {
-		arena = append(arena, 0)
-	}
-	g.buf, g.entries = nil, nil
-	if cap(arena)-len(arena) > len(arena)/32 {
-		arena = slices.Clone(arena)
-	}
-	g.arena = unsafe.String(unsafe.SliceData(arena), len(arena)) // arena is not written after this
-	return recs
-}
-
-// place fills level0, level1 and fp: records are bucketed by hash, and each bucket, largest first, gets
-// the first seed that puts all its records in free slots.
-func (g *MphMatcherGroup) place(recs []uint32, hashes []uint64) error {
-	r := len(recs)
-	n0, n1 := max(1, r/3), max(1, r+r/99)
-	g.n0, g.n1 = uint32(n0), uint32(n1)
-	g.level0 = make([]uint16, n0)
-	g.level1 = make([]uint32, n1)
-	g.fp = make([]uint8, n1)
-
-	start := make([]uint32, n0+1)
-	for _, h := range hashes {
-		start[g.bucket(h)+1]++
-	}
-	for b := range n0 {
-		start[b+1] += start[b]
-	}
-	members := make([]uint32, r)
-	fill := slices.Clone(start[:n0])
-	for i, h := range hashes {
-		b := g.bucket(h)
-		members[fill[b]] = uint32(i)
-		fill[b]++
-	}
-	fill = nil
-	buckets := make([]uint32, n0)
-	for b := range buckets {
-		buckets[b] = uint32(b)
-	}
-	slices.SortStableFunc(buckets, func(a, b uint32) int {
-		return cmp.Compare(start[b+1]-start[b], start[a+1]-start[a])
-	})
-
-	occupied := make([]uint64, (n1+63)/64)
-	var slots []uint32
-next:
-	for _, b := range buckets {
-		m := members[start[b]:start[b+1]]
-		if len(m) == 0 {
-			break
-		}
-		for i := range m {
-			for j := range i {
-				if hashes[m[i]] == hashes[m[j]] {
-					return errMphCollision // no seed can separate them
-				}
-			}
-		}
-	search:
-		for seed := range math.MaxUint16 + 1 {
-			slots = slots[:0]
-			for _, ri := range m {
-				s := g.slot(hashes[ri], uint16(seed))
-				if occupied[s/64]&(1<<(s%64)) != 0 || slices.Contains(slots, s) {
-					continue search
-				}
-				slots = append(slots, s)
-			}
-			for k, ri := range m {
-				s := slots[k]
-				occupied[s/64] |= 1 << (s % 64)
-				g.level1[s] = recs[ri]
-				g.fp[s] = uint8(hashes[ri])
-			}
-			g.level0[b] = uint16(seed)
-			continue next
-		}
-		return errors.New("strmatcher: no seed found for a bucket in MphMatcherGroup")
 	}
 	return nil
 }
 
-// mphHash is the suffix hash of s, taken from the right: the hash of s[i:] is the state after reading s[i].
+// Lookup searches for input in minimal perfect hash table and returns its index. 0 indicates not found.
-func mphHash(mul uint64, s string) uint64 {
+func (g *MphMatcherGroup) Lookup(rollingHash uint32, input string) uint32 {
-	h := uint64(0)
+	i0 := rollingHash & g.level0Mask
-	for i := len(s) - 1; i >= 0; i-- {
+	seed := g.level0[i0]
-		h = h*mul + uint64(s[i])
+	i1 := MemHash(seed, input) & g.level1Mask
-	}
+	if n := g.level1[i1]; g.rules[n] == input {
-	return h
+		return n
-}
-
-// mphMix spreads the weak low bits of a suffix hash.
-func mphMix(h uint64) uint64 {
-	h ^= h >> 32
-	h *= 0xd6e8feb86659fd93
-	return h ^ h>>32
-}
-
-func (g *MphMatcherGroup) bucket(f uint64) uint32 {
-	return uint32(((f >> 32) * uint64(g.n0)) >> 32)
-}
-
-func (g *MphMatcherGroup) slot(f uint64, seed uint16) uint32 {
-	x := ((f ^ uint64(seed)*0x9e3779b97f4a7c15) * 0xc4ceb9fe1a85ec53) >> 32
-	return uint32((x * uint64(g.n1)) >> 32)
-}
-
-func (g *MphMatcherGroup) uvarint(p uint32) (x, next uint32) {
-	for shift := 0; ; shift += 7 {
-		c := g.arena[p]
-		p++
-		x |= uint32(c&0x7f) << shift
-		if c < 0x80 {
-			return x, p
-		}
-	}
-}
-
-// recSpan returns where the pattern of the record at off starts and how long it is.
-func (g *MphMatcherGroup) recSpan(off uint32) (p, n uint32) {
-	n, p = uint32(g.arena[off]), off+1
-	if n == 255 {
-		n, p = g.uvarint(p)
-	}
-	return p, n
-}
-
-func (g *MphMatcherGroup) recKey(rec uint32) string {
-	p, n := g.recSpan(rec & mphOffMask)
-	return g.arena[p : p+n]
-}
-
-// lookup returns the level1 entry of s, or 0 if s is not a pattern. h is the suffix hash of s.
-func (g *MphMatcherGroup) lookup(h uint64, s string) uint32 {
-	f := mphMix(h)
-	// bucket < n0 == len(level0) and slot < n1 == len(level1) == len(fp), skip the bounds checks
-	seed := *(*uint16)(unsafe.Add(unsafe.Pointer(unsafe.SliceData(g.level0)), uintptr(g.bucket(f))*2))
-	slot := uintptr(g.slot(f, seed))
-	if *(*uint8)(unsafe.Add(unsafe.Pointer(unsafe.SliceData(g.fp)), slot)) != uint8(f) {
-		return 0
-	}
-	e := *(*uint32)(unsafe.Add(unsafe.Pointer(unsafe.SliceData(g.level1)), slot*4))
-	if len(s) < 255 {
-		// A record whose length byte is len(s) has len(s) pattern bytes after it
-		p := unsafe.Add(unsafe.Pointer(unsafe.StringData(g.arena)), e&mphOffMask)
-		if int(*(*byte)(p)) == len(s) && unsafe.String((*byte)(unsafe.Add(p, 1)), len(s)) == s {
-			return e
-		}
-		return 0
-	}
-	if g.recKey(e) == s {
-		return e
 	}
 	return 0
 }
 
-// appendValues appends the values of record e for the flags in want, in mphKinds order.
+// Match implements MatcherGroup.Match.
-func (g *MphMatcherGroup) appendValues(dst []uint32, e, want uint32) []uint32 {
-	if !g.multi {
-		for _, flag := range mphKinds {
-			if e&want&flag != 0 {
-				dst = append(dst, g.single)
-			}
-		}
-		return dst
-	}
-	if e&want == 0 {
-		return dst
-	}
-	p, n := g.recSpan(e & mphOffMask)
-	p += n
-	for _, flag := range mphKinds {
-		if e&flag == 0 {
-			continue
-		}
-		var count, v uint32
-		for count, p = g.uvarint(p); count > 0; count-- {
-			v, p = g.uvarint(p)
-			if want&flag != 0 {
-				dst = append(dst, v)
-			}
-		}
-	}
-	return dst
-}
-
-// Match implements MatcherGroup.Match. Values of an exact match come first (Full, then Domain), then those of
-// the parent domains, nearest first.
 func (g *MphMatcherGroup) Match(input string) []uint32 {
-	var stack [8]uint32
+	matches := make([][]uint32, 0, 5)
-	parents := stack[:0] // TLD side first
+	hash := uint32(0)
-	h, mul := uint64(0), g.mul
 	for i := len(input) - 1; i >= 0; i-- {
+		hash = hash*PrimeRK + uint32(input[i])
 		if input[i] == '.' {
-			if e := g.lookup(h, input[i+1:]); e&(mphDomain|mphParent) != 0 {
+			if mphIdx := g.Lookup(hash, input[i:]); mphIdx != 0 {
-				parents = append(parents, e)
+				matches = append(matches, g.values[mphIdx])
 			}
 		}
-		h = h*mul + uint64(input[i])
 	}
-	exact := g.lookup(h, input)
+	if mphIdx := g.Lookup(hash, input); mphIdx != 0 {
-	if exact&(mphFull|mphDomain) == 0 && len(parents) == 0 {
+		matches = append(matches, g.values[mphIdx])
-		return nil
 	}
-	result := g.appendValues(make([]uint32, 0, len(parents)+1), exact, mphFull|mphDomain)
+	return CompositeMatchesReverse(matches)
-	for k := len(parents) - 1; k >= 0; k-- {
-		result = g.appendValues(result, parents[k], mphParent|mphDomain)
-	}
-	return result
 }
 
 // MatchAny implements MatcherGroup.MatchAny.
 func (g *MphMatcherGroup) MatchAny(input string) bool {
-	h, mul := uint64(0), g.mul
+	hash := uint32(0)
-	for i := len(input) - 1; i >= 0; i-- {
-		if input[i] == '.' && g.lookup(h, input[i+1:])&(mphDomain|mphParent) != 0 {
-			return true
-		}
-		h = h*mul + uint64(input[i])
-	}
-	return g.lookup(h, input)&(mphFull|mphDomain) != 0
-}
-
-// mphSuffix is the suffix hash of input[off:], a parent domain of the input.
-type mphSuffix struct {
-	h   uint64
-	off int
-}
-
-// mphSuffixes appends the suffix hashes of the parent domains of input to dst, TLD side first, and returns them
-// with the hash of input itself: what MatchAny computes, computed once for several groups.
-func mphSuffixes(dst []mphSuffix, mul uint64, input string) ([]mphSuffix, uint64) {
-	h := uint64(0)
 	for i := len(input) - 1; i >= 0; i-- {
+		hash = hash*PrimeRK + uint32(input[i])
 		if input[i] == '.' {
-			dst = append(dst, mphSuffix{h, i + 1})
+			if g.Lookup(hash, input[i:]) != 0 {
+				return true
+			}
 		}
-		h = h*mul + uint64(input[i])
 	}
-	return dst, h
+	return g.Lookup(hash, input) != 0
 }
 
-// matchAnyHashed is MatchAny with parents and h from mphSuffixes(_, mul, input).
+func nextPow2(v int) int {
-func (g *MphMatcherGroup) matchAnyHashed(input string, parents []mphSuffix, h, mul uint64) bool {
+	if v <= 1 {
-	if g.mul != mul {
+		return 1
-		return g.MatchAny(input) // built with a later multiplier after a collision
 	}
-	for _, p := range parents {
+	const MaxUInt = ^uint(0)
-		if g.lookup(p.h, input[p.off:])&(mphDomain|mphParent) != 0 {
+	n := (MaxUInt >> bits.LeadingZeros(uint(v))) + 1
-			return true
+	return int(n)
-		}
-	}
-	return g.lookup(h, input)&(mphFull|mphDomain) != 0
 }
+
+//go:noescape
+//go:linkname strhash runtime.strhash
+func strhash(p unsafe.Pointer, h uintptr) uintptr