Fix udp

```json
{"streamSettings":{"sockopt": {"tcpUserTimeout": 10000}}}
```

run `gofmt -w -s .` as well

.github/docker/Dockerfile

@@ -0,0 +1,21 @@
+# syntax=docker/dockerfile:1
+FROM --platform=$BUILDPLATFORM golang:alpine AS build
+WORKDIR /src
+COPY . .
+ARG TARGETOS TARGETARCH
+RUN GOOS=$TARGETOS GOARCH=$TARGETARCH CGO_ENABLED=0 go build -o xray -trimpath -ldflags "-s -w -buildid=" ./main
+
+FROM --platform=${TARGETPLATFORM} alpine:latest
+WORKDIR /root
+COPY .github/docker/files/config.json /etc/xray/config.json
+COPY --from=build /src/xray /usr/bin/xray
+RUN set -ex \
+	&& apk add --no-cache tzdata ca-certificates \
+	&& mkdir -p /var/log/xray /usr/share/xray \
+    && chmod +x /usr/bin/xray \
+	&& wget -O /usr/share/xray/geosite.dat https://github.com/Loyalsoldier/v2ray-rules-dat/releases/latest/download/geosite.dat \
+	&& wget -O /usr/share/xray/geoip.dat https://github.com/Loyalsoldier/v2ray-rules-dat/releases/latest/download/geoip.dat
+
+VOLUME /etc/xray
+ENV TZ=Asia/Shanghai
+CMD [ "/usr/bin/xray", "-config", "/etc/xray/config.json" ]

.github/docker/files/config.json

@@ -0,0 +1,19 @@
+{
+  "inbounds": [{
+    "port": 9000,
+    "protocol": "vmess",
+    "settings": {
+      "clients": [
+        {
+          "id": "1eb6e917-774b-4a84-aff6-b058577c60a5",
+          "level": 1,
+          "alterId": 64
+        }
+      ]
+    }
+  }],
+  "outbounds": [{
+    "protocol": "freedom",
+    "settings": {}
+  }]
+}

.github/workflows/docker.yml

@@ -0,0 +1,45 @@
+name: Build docker image
+
+on:
+  push:
+    branches:
+      - '*'
+
+jobs:
+  build-image:
+    runs-on: ubuntu-latest
+    permissions:
+      packages: write
+    steps:
+      - uses: actions/checkout@v3
+      - name: Docker metadata
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: ghcr.io/${{ github.repository_owner }}/xray-core
+          flavor: latest=true
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - # Add support for more platforms with QEMU (optional)
+        # https://github.com/docker/setup-qemu-action
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+      - name: Build and push
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm64
+          file: .github/docker/Dockerfile
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

.github/workflows/release.yml

@@ -20,7 +20,51 @@ on:
       - "go.sum"
       - ".github/workflows/*.yml"
 jobs:
+  prepare:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Restore Cache
+        uses: actions/cache/restore@v3
+        with:
+          path: resources
+          key: xray-geodat-
+
+      - name: Update Geodat
+        id: update
+        uses: nick-fields/retry@v2
+        with:
+          timeout_minutes: 60
+          retry_wait_seconds: 60
+          max_attempts: 60
+          command: |
+            [ -d 'resources' ] || mkdir resources
+            LIST=('geoip geoip geoip' 'domain-list-community dlc geosite')
+            for i in "${LIST[@]}"
+            do
+              INFO=($(echo $i | awk 'BEGIN{FS=" ";OFS=" "} {print $1,$2,$3}'))
+              FILE_NAME="${INFO[2]}.dat"
+              echo -e "Verifying HASH key..."
+              HASH="$(curl -sL "https://raw.githubusercontent.com/v2fly/${INFO[0]}/release/${INFO[1]}.dat.sha256sum" | awk -F ' ' '{print $1}')"
+              if [ -s "./resources/${FILE_NAME}" ] && [ "$(sha256sum "./resources/${FILE_NAME}" | awk -F ' ' '{print $1}')" == "${HASH}" ]; then
+                  continue
+              else
+                  echo -e "Downloading https://raw.githubusercontent.com/v2fly/${INFO[0]}/release/${INFO[1]}.dat..."
+                  curl -L "https://raw.githubusercontent.com/v2fly/${INFO[0]}/release/${INFO[1]}.dat" -o ./resources/${FILE_NAME}
+                  echo -e "Verifying HASH key..."
+                  [ "$(sha256sum "./resources/${FILE_NAME}" | awk -F ' ' '{print $1}')" == "${HASH}" ] || { echo -e "The HASH key of ${FILE_NAME} does not match cloud one."; exit 1; }
+                  echo "unhit=true" >> $GITHUB_OUTPUT
+              fi
+            done
+
+      - name: Save Cache
+        uses: actions/cache/save@v3
+        if: ${{ steps.update.outputs.unhit }}
+        with:
+          path: resources
+          key: xray-geodat-${{ github.sha }}-${{ github.run_number }}
+
   build:
+    needs: prepare
     permissions:
       contents: write
     strategy:
@@ -121,9 +165,9 @@ jobs:
           echo "ASSET_NAME=$_NAME" >> $GITHUB_ENV
 
       - name: Set up Go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
-          go-version: 1.19
+          go-version: '1.20'
           check-latest: true
 
       - name: Get project dependencies
@@ -160,26 +204,17 @@ jobs:
           cd ./build_assets || exit 1
           mv xray xray.exe
 
-      - name: Prepare to release
-        uses: nick-fields/retry@v2
+      - name: Restore Cache
+        uses: actions/cache/restore@v3
         with:
-          timeout_minutes: 60
-          retry_wait_seconds: 60
-          max_attempts: 60
-          command: |
-            cp ${GITHUB_WORKSPACE}/README.md ./build_assets/README.md
-            cp ${GITHUB_WORKSPACE}/LICENSE ./build_assets/LICENSE
-            LIST=('geoip geoip geoip' 'domain-list-community dlc geosite')
-            for i in "${LIST[@]}"
-            do
-              INFO=($(echo $i | awk 'BEGIN{FS=" ";OFS=" "} {print $1,$2,$3}'))
-              FILE_NAME="${INFO[2]}.dat"
-              echo -e "Downloading https://raw.githubusercontent.com/v2fly/${INFO[0]}/release/${INFO[1]}.dat..."
-              curl -L "https://raw.githubusercontent.com/v2fly/${INFO[0]}/release/${INFO[1]}.dat" -o ./build_assets/${FILE_NAME}
-              echo -e "Verifying HASH key..."
-              HASH="$(curl -sL "https://raw.githubusercontent.com/v2fly/${INFO[0]}/release/${INFO[1]}.dat.sha256sum" | awk -F ' ' '{print $1}')"
-              [ "$(sha256sum "./build_assets/${FILE_NAME}" | awk -F ' ' '{print $1}')" == "${HASH}" ] || { echo -e "The HASH key of ${FILE_NAME} does not match cloud one."; exit 1; }
-            done
+          path: resources
+          key: xray-geodat-
+
+      - name: Copy README.md & LICENSE
+        run: |
+          mv -f resources/* build_assets
+          cp ${GITHUB_WORKSPACE}/README.md ./build_assets/README.md
+          cp ${GITHUB_WORKSPACE}/LICENSE ./build_assets/LICENSE
 
       - name: Create ZIP archive
         shell: bash

.github/workflows/test.yml

@@ -28,24 +28,17 @@ jobs:
         os: [windows-latest, ubuntu-latest, macos-latest]
     steps:
       - name: Set up Go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
-          go-version: 1.19
+          go-version: '1.20'
           check-latest: true
       - name: Checkout codebase
         uses: actions/checkout@v3
-
-      - name: Prepare geo*dat
-        if: ${{ matrix.os != 'windows-latest' }}
-        run: |
-          mkdir resources
-          wget -O ./resources/geoip.dat https://github.com/v2fly/geoip/releases/latest/download/geoip.dat
-          wget -O ./resources/geosite.dat https://github.com/v2fly/domain-list-community/releases/latest/download/dlc.dat
-      - name: Prepare geo*dat for Windows
-        if: ${{ matrix.os == 'windows-latest' }}
-        run: |
-          mkdir resources
-          Invoke-WebRequest -Uri "https://github.com/v2fly/geoip/releases/latest/download/geoip.dat" -OutFile "./resources/geoip.dat"
-          Invoke-WebRequest -Uri "https://github.com/v2fly/domain-list-community/releases/latest/download/dlc.dat" -OutFile "./resources/geosite.dat"
+      - name: Restore Cache
+        uses: actions/cache/restore@v3
+        with:
+          path: resources
+          key: xray-geodat-
+          enableCrossOsArchive: true
       - name: Test
         run: go test -timeout 1h -v ./...

README.md

@@ -1,58 +1,105 @@
 # Project X
 
-[Project X](https://github.com/XTLS) originates from XTLS protocol, provides a set of network tools such as [Xray-core](https://github.com/XTLS/Xray-core).
+[Project X](https://github.com/XTLS) originates from XTLS protocol, providing a set of network tools such as [Xray-core](https://github.com/XTLS/Xray-core) and [REALITY](https://github.com/XTLS/REALITY).
+
+[README](https://github.com/XTLS/Xray-core#readme) is open, so feel free to submit your project [here](https://github.com/XTLS/Xray-core/pulls).
 
 ## License
 
 [Mozilla Public License Version 2.0](https://github.com/XTLS/Xray-core/blob/main/LICENSE)
 
+## Documentation
+
+[Project X Official Website](https://xtls.github.io)
+
+## Telegram
+
+[Project X](https://t.me/projectXray)
+
+[Project X Channel](https://t.me/projectXtls)
+
 ## Installation
 
 - Linux Script
-  - [Xray-install](https://github.com/XTLS/Xray-install)
-  - [Xray-script](https://github.com/kirin10000/Xray-script)
+  - [XTLS/Xray-install](https://github.com/XTLS/Xray-install)
 - Docker
   - [teddysun/xray](https://hub.docker.com/r/teddysun/xray)
+- Web Panel
+  - [X-UI](https://github.com/FranzKafkaYu/x-ui), [X-UI-English](https://github.com/NidukaAkalanka/x-ui-english), [3X-UI](https://github.com/MHSanaei/3x-ui), [X-UI](https://github.com/alireza0/x-ui), [X-UI](https://github.com/diditra/x-ui)
+  - [Xray-UI](https://github.com/qist/xray-ui), [X-UI](https://github.com/sing-web/x-ui)
+  - [Hiddify](https://github.com/hiddify/hiddify-config)
+  - [Marzban](https://github.com/Gozargah/Marzban)
+  - [Libertea](https://github.com/VZiChoushaDui/Libertea)
 - One Click
-  - [ProxySU](https://github.com/proxysu/ProxySU)
-  - [v2ray-agent](https://github.com/mack-a/v2ray-agent)
-  - [Xray-yes](https://github.com/jiuqi9997/Xray-yes)
-  - [Xray_onekey](https://github.com/wulabing/Xray_onekey)
+  - [Xray-script](https://github.com/kirin10000/Xray-script), [Xray-REALITY](https://github.com/zxcvos/Xray-script), [LetsXray](https://github.com/tdjnodj/LetsXray)
+  - [XTool](https://github.com/LordPenguin666/XTool), [Xray_bash_onekey](https://github.com/hello-yunshu/Xray_bash_onekey), [xray-reality](https://github.com/sajjaddg/xray-reality)
+  - [v2ray-agent](https://github.com/mack-a/v2ray-agent), [Xray_onekey](https://github.com/wulabing/Xray_onekey), [ProxySU](https://github.com/proxysu/ProxySU)
 - Magisk
-  - [Xray4Magisk](https://github.com/CerteKim/Xray4Magisk)
+  - [Xray4Magisk](https://github.com/Asterisk4Magisk/Xray4Magisk)
   - [Xray_For_Magisk](https://github.com/E7KMbb/Xray_For_Magisk)
 - Homebrew
   - `brew install xray`
-  - [(Tap) Repository 0](https://github.com/N4FA/homebrew-xray)
-  - [(Tap) Repository 1](https://github.com/xiruizhao/homebrew-xray)
-
-## Contributing
-[Code Of Conduct](https://github.com/XTLS/Xray-core/blob/main/CODE_OF_CONDUCT.md)
 
 ## Usage
 
-[Xray-examples](https://github.com/XTLS/Xray-examples) / [VLESS-TCP-XTLS-WHATEVER](https://github.com/XTLS/Xray-examples/tree/main/VLESS-TCP-XTLS-WHATEVER)
+- Example
+  - [VLESS-XTLS-uTLS-REALITY](https://github.com/XTLS/REALITY#readme)
+  - [VLESS-TCP-XTLS-Vision](https://github.com/XTLS/Xray-examples/tree/main/VLESS-TCP-XTLS-Vision)
+  - [All-in-One-fallbacks-Nginx](https://github.com/XTLS/Xray-examples/tree/main/All-in-One-fallbacks-Nginx)
+- Xray-examples
+  - [XTLS/Xray-examples](https://github.com/XTLS/Xray-examples)
+  - [chika0801/Xray-examples](https://github.com/chika0801/Xray-examples)
+  - [lxhao61/integrated-examples](https://github.com/lxhao61/integrated-examples)
+- Tutorial
+  - [XTLS Vision](https://github.com/chika0801/Xray-install)
+  - [REALITY (English)](https://cscot.pages.dev/2023/03/02/Xray-REALITY-tutorial/)
+  - [XTLS-Iran-Reality (English)](https://github.com/SasukeFreestyle/XTLS-Iran-Reality)
 
 ## GUI Clients
 
 - OpenWrt
-  - [PassWall](https://github.com/xiaorouji/openwrt-passwall)
-  - [Hello World](https://github.com/jerrykuku/luci-app-vssr)
+  - [PassWall](https://github.com/xiaorouji/openwrt-passwall), [PassWall 2](https://github.com/xiaorouji/openwrt-passwall2)
   - [ShadowSocksR Plus+](https://github.com/fw876/helloworld)
   - [luci-app-xray](https://github.com/yichya/luci-app-xray) ([openwrt-xray](https://github.com/yichya/openwrt-xray))
 - Windows
   - [v2rayN](https://github.com/2dust/v2rayN)
-  - [Qv2ray](https://github.com/Qv2ray/Qv2ray) (This project had been archived and currently inactive)
-  - [Netch (NetFilter & TUN/TAP)](https://github.com/NetchX/Netch) (This project had been archived and currently inactive)
+  - [Invisible Man - Xray](https://github.com/InvisibleManVPN/InvisibleMan-XRayClient)
 - Android
   - [v2rayNG](https://github.com/2dust/v2rayNG)
-  - [Kitsunebi](https://github.com/rurirei/Kitsunebi/tree/release_xtls)
-- iOS & macOS (with M1 chip)
+  - [X-flutter](https://github.com/XTLS/X-flutter)
+- iOS & macOS arm64
+  - [Mango](https://github.com/arror/Mango)
+  - [Wings X](https://apps.apple.com/app/wings-x/id6446119727)
+- macOS arm64 & x64
+  - [V2RayXS](https://github.com/tzmax/V2RayXS)
+  - [Wings X](https://apps.apple.com/app/wings-x/id6446119727)
+
+## Others that support VLESS, XTLS, REALITY, XUDP, PLUX...
+
+- iOS & macOS arm64
   - [Shadowrocket](https://apps.apple.com/app/shadowrocket/id932747118)
   - [Stash](https://apps.apple.com/app/stash/id1596063349)
-- macOS (Intel chip & M1 chip)
-  - [Qv2ray](https://github.com/Qv2ray/Qv2ray) (This project had been archived and currently inactive)
-  - [V2RayXS](https://github.com/tzmax/V2RayXS)
+- Xray Wrapper
+  - [xtlsapi](https://github.com/hiddify/xtlsapi)
+  - [AndroidLibXrayLite](https://github.com/2dust/AndroidLibXrayLite)
+  - [XrayKit](https://github.com/arror/XrayKit)
+  - [libxray](https://github.com/KouYiGuo/libxray)
+- [XrayR](https://github.com/XrayR-project/XrayR)
+  - [XrayR-release](https://github.com/XrayR-project/XrayR-release)
+  - [XrayR-V2Board](https://github.com/missuo/XrayR-V2Board)
+- [Clash.Meta](https://github.com/MetaCubeX/Clash.Meta)
+  - [Clash Verge](https://github.com/zzzgydi/clash-verge)
+  - [clashN](https://github.com/2dust/clashN)
+  - [Clash Meta for Android](https://github.com/MetaCubeX/ClashMetaForAndroid)
+  - [meta_for_ios](https://t.me/meta_for_ios)
+- [sing-box](https://github.com/SagerNet/sing-box)
+  - [installReality](https://github.com/BoxXt/installReality)
+  - [sbox-reality](https://github.com/Misaka-blog/sbox-reality)
+  - [sing-box-for-ios](https://github.com/SagerNet/sing-box-for-ios)
+
+## Contributing
+
+[Code of Conduct](https://github.com/XTLS/Xray-core/blob/main/CODE_OF_CONDUCT.md)
 
 ## Credits
 
@@ -63,7 +110,7 @@ This repo relies on the following third-party projects:
 - In production:
   - [ghodss/yaml](https://github.com/ghodss/yaml)
   - [gorilla/websocket](https://github.com/gorilla/websocket)
-  - [lucas-clemente/quic-go](https://github.com/lucas-clemente/quic-go)
+  - [quic-go/quic-go](https://github.com/quic-go/quic-go)
   - [pelletier/go-toml](https://github.com/pelletier/go-toml)
   - [pires/go-proxyproto](https://github.com/pires/go-proxyproto)
   - [refraction-networking/utls](https://github.com/refraction-networking/utls)
@@ -88,12 +135,6 @@ go build -o xray.exe -trimpath -ldflags "-s -w -buildid=" ./main
 go build -o xray -trimpath -ldflags "-s -w -buildid=" ./main
 ```
 
-## Telegram
-
-[Project X](https://t.me/projectXray)
-
-[Project X Channel](https://t.me/projectXtls)
-
 ## Stargazers over time
 
 [![Stargazers over time](https://starchart.cc/XTLS/Xray-core.svg)](https://starchart.cc/XTLS/Xray-core)

app/commander/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: app/commander/config.proto
 
 package commander

app/dispatcher/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: app/dispatcher/config.proto
 
 package dispatcher

app/dispatcher/default.go

@@ -30,10 +30,15 @@ var errSniffingTimeout = newError("timeout on sniffing")
 
 type cachedReader struct {
 	sync.Mutex
-	reader *pipe.Reader
+	reader timeoutReader
 	cache  buf.MultiBuffer
 }
 
+type timeoutReader interface {
+	buf.Reader
+	buf.TimeoutReader
+}
+
 func (r *cachedReader) Cache(b *buf.Buffer) {
 	mb, _ := r.reader.ReadMultiBufferTimeout(time.Millisecond * 100)
 	r.Lock()
@@ -84,7 +89,7 @@ func (r *cachedReader) Interrupt() {
 		r.cache = buf.ReleaseMulti(r.cache)
 	}
 	r.Unlock()
-	r.reader.Interrupt()
+	common.Interrupt(r.reader)
 }
 
 // DefaultDispatcher is a default implementation of Dispatcher.
@@ -342,29 +347,27 @@ func (d *DefaultDispatcher) DispatchLink(ctx context.Context, destination net.De
 	}
 	sniffingRequest := content.SniffingRequest
 	if !sniffingRequest.Enabled {
-		go d.routedDispatch(ctx, outbound, destination)
+		d.routedDispatch(ctx, outbound, destination)
 	} else {
-		go func() {
-			cReader := &cachedReader{
-				reader: outbound.Reader.(*pipe.Reader),
+		cReader := &cachedReader{
+			reader: outbound.Reader.(timeoutReader),
+		}
+		outbound.Reader = cReader
+		result, err := sniffer(ctx, cReader, sniffingRequest.MetadataOnly, destination.Network)
+		if err == nil {
+			content.Protocol = result.Protocol()
+		}
+		if err == nil && d.shouldOverride(ctx, result, sniffingRequest, destination) {
+			domain := result.Domain()
+			newError("sniffed domain: ", domain).WriteToLog(session.ExportIDToError(ctx))
+			destination.Address = net.ParseAddress(domain)
+			if sniffingRequest.RouteOnly && result.Protocol() != "fakedns" {
+				ob.RouteTarget = destination
+			} else {
+				ob.Target = destination
 			}
-			outbound.Reader = cReader
-			result, err := sniffer(ctx, cReader, sniffingRequest.MetadataOnly, destination.Network)
-			if err == nil {
-				content.Protocol = result.Protocol()
-			}
-			if err == nil && d.shouldOverride(ctx, result, sniffingRequest, destination) {
-				domain := result.Domain()
-				newError("sniffed domain: ", domain).WriteToLog(session.ExportIDToError(ctx))
-				destination.Address = net.ParseAddress(domain)
-				if sniffingRequest.RouteOnly && result.Protocol() != "fakedns" {
-					ob.RouteTarget = destination
-				} else {
-					ob.Target = destination
-				}
-			}
-			d.routedDispatch(ctx, outbound, destination)
-		}()
+		}
+		d.routedDispatch(ctx, outbound, destination)
 	}
 
 	return nil

app/dns/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: app/dns/config.proto
 
 package dns

app/dns/fakedns/fakedns.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: app/dns/fakedns/fakedns.proto
 
 package fakedns

app/dns/nameserver_quic.go

@@ -7,7 +7,7 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/lucas-clemente/quic-go"
+	"github.com/quic-go/quic-go"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/log"

app/log/command/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: app/log/command/config.proto
 
 package command

app/log/command/config_grpc.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
 // versions:
 // - protoc-gen-go-grpc v1.2.0
-// - protoc             v3.18.0
+// - protoc             v3.21.12
 // source: app/log/command/config.proto
 
 package command

app/log/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: app/log/config.proto
 
 package log

app/metrics/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: app/metrics/config.proto
 
 package metrics

app/observatory/command/command.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: app/observatory/command/command.proto
 
 package command

app/observatory/command/command_grpc.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
 // versions:
 // - protoc-gen-go-grpc v1.2.0
-// - protoc             v3.18.0
+// - protoc             v3.21.12
 // source: app/observatory/command/command.proto
 
 package command

app/observatory/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: app/observatory/config.proto
 
 package observatory

app/policy/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: app/policy/config.proto
 
 package policy

app/proxyman/command/command.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: app/proxyman/command/command.proto
 
 package command

app/proxyman/command/command_grpc.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
 // versions:
 // - protoc-gen-go-grpc v1.2.0
-// - protoc             v3.18.0
+// - protoc             v3.21.12
 // source: app/proxyman/command/command.proto
 
 package command

app/proxyman/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: app/proxyman/config.proto
 
 package proxyman
@@ -524,6 +524,7 @@ type SenderConfig struct {
 	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"`
+	SmuxSettings      *SingMultiplexConfig   `protobuf:"bytes,5,opt,name=smux_settings,json=smuxSettings,proto3" json:"smux_settings,omitempty"`
 }
 
 func (x *SenderConfig) Reset() {
@@ -586,6 +587,13 @@ func (x *SenderConfig) GetMultiplexSettings() *MultiplexingConfig {
 	return nil
 }
 
+func (x *SenderConfig) GetSmuxSettings() *SingMultiplexConfig {
+	if x != nil {
+		return x.SmuxSettings
+	}
+	return nil
+}
+
 type MultiplexingConfig struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -594,7 +602,11 @@ type MultiplexingConfig struct {
 	// Whether or not Mux is enabled.
 	Enabled bool `protobuf:"varint,1,opt,name=enabled,proto3" json:"enabled,omitempty"`
 	// Max number of concurrent connections that one Mux connection can handle.
-	Concurrency uint32 `protobuf:"varint,2,opt,name=concurrency,proto3" json:"concurrency,omitempty"`
+	Concurrency int32 `protobuf:"varint,2,opt,name=concurrency,proto3" json:"concurrency,omitempty"`
+	// Transport XUDP in another Mux.
+	XudpConcurrency int32 `protobuf:"varint,3,opt,name=xudpConcurrency,proto3" json:"xudpConcurrency,omitempty"`
+	// "reject" (default), "allow" or "skip".
+	XudpProxyUDP443 string `protobuf:"bytes,4,opt,name=xudpProxyUDP443,proto3" json:"xudpProxyUDP443,omitempty"`
 }
 
 func (x *MultiplexingConfig) Reset() {
@@ -636,13 +648,114 @@ func (x *MultiplexingConfig) GetEnabled() bool {
 	return false
 }
 
-func (x *MultiplexingConfig) GetConcurrency() uint32 {
+func (x *MultiplexingConfig) GetConcurrency() int32 {
 	if x != nil {
 		return x.Concurrency
 	}
 	return 0
 }
 
+func (x *MultiplexingConfig) GetXudpConcurrency() int32 {
+	if x != nil {
+		return x.XudpConcurrency
+	}
+	return 0
+}
+
+func (x *MultiplexingConfig) GetXudpProxyUDP443() string {
+	if x != nil {
+		return x.XudpProxyUDP443
+	}
+	return ""
+}
+
+type SingMultiplexConfig struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Enabled        bool   `protobuf:"varint,1,opt,name=enabled,proto3" json:"enabled,omitempty"`
+	Protocol       string `protobuf:"bytes,2,opt,name=protocol,proto3" json:"protocol,omitempty"`
+	MaxConnections int32  `protobuf:"varint,3,opt,name=max_connections,json=maxConnections,proto3" json:"max_connections,omitempty"`
+	MinStreams     int32  `protobuf:"varint,4,opt,name=min_streams,json=minStreams,proto3" json:"min_streams,omitempty"`
+	MaxStreams     int32  `protobuf:"varint,5,opt,name=max_streams,json=maxStreams,proto3" json:"max_streams,omitempty"`
+	Padding        bool   `protobuf:"varint,6,opt,name=padding,proto3" json:"padding,omitempty"`
+}
+
+func (x *SingMultiplexConfig) Reset() {
+	*x = SingMultiplexConfig{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_app_proxyman_config_proto_msgTypes[8]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *SingMultiplexConfig) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*SingMultiplexConfig) ProtoMessage() {}
+
+func (x *SingMultiplexConfig) ProtoReflect() protoreflect.Message {
+	mi := &file_app_proxyman_config_proto_msgTypes[8]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use SingMultiplexConfig.ProtoReflect.Descriptor instead.
+func (*SingMultiplexConfig) Descriptor() ([]byte, []int) {
+	return file_app_proxyman_config_proto_rawDescGZIP(), []int{8}
+}
+
+func (x *SingMultiplexConfig) GetEnabled() bool {
+	if x != nil {
+		return x.Enabled
+	}
+	return false
+}
+
+func (x *SingMultiplexConfig) GetProtocol() string {
+	if x != nil {
+		return x.Protocol
+	}
+	return ""
+}
+
+func (x *SingMultiplexConfig) GetMaxConnections() int32 {
+	if x != nil {
+		return x.MaxConnections
+	}
+	return 0
+}
+
+func (x *SingMultiplexConfig) GetMinStreams() int32 {
+	if x != nil {
+		return x.MinStreams
+	}
+	return 0
+}
+
+func (x *SingMultiplexConfig) GetMaxStreams() int32 {
+	if x != nil {
+		return x.MaxStreams
+	}
+	return 0
+}
+
+func (x *SingMultiplexConfig) GetPadding() bool {
+	if x != nil {
+		return x.Padding
+	}
+	return false
+}
+
 type AllocationStrategy_AllocationStrategyConcurrency struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -654,7 +767,7 @@ type AllocationStrategy_AllocationStrategyConcurrency struct {
 func (x *AllocationStrategy_AllocationStrategyConcurrency) Reset() {
 	*x = AllocationStrategy_AllocationStrategyConcurrency{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_app_proxyman_config_proto_msgTypes[8]
+		mi := &file_app_proxyman_config_proto_msgTypes[9]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -667,7 +780,7 @@ func (x *AllocationStrategy_AllocationStrategyConcurrency) String() string {
 func (*AllocationStrategy_AllocationStrategyConcurrency) ProtoMessage() {}
 
 func (x *AllocationStrategy_AllocationStrategyConcurrency) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_config_proto_msgTypes[8]
+	mi := &file_app_proxyman_config_proto_msgTypes[9]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -701,7 +814,7 @@ type AllocationStrategy_AllocationStrategyRefresh struct {
 func (x *AllocationStrategy_AllocationStrategyRefresh) Reset() {
 	*x = AllocationStrategy_AllocationStrategyRefresh{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_app_proxyman_config_proto_msgTypes[9]
+		mi := &file_app_proxyman_config_proto_msgTypes[10]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -714,7 +827,7 @@ func (x *AllocationStrategy_AllocationStrategyRefresh) String() string {
 func (*AllocationStrategy_AllocationStrategyRefresh) ProtoMessage() {}
 
 func (x *AllocationStrategy_AllocationStrategyRefresh) ProtoReflect() protoreflect.Message {
-	mi := &file_app_proxyman_config_proto_msgTypes[9]
+	mi := &file_app_proxyman_config_proto_msgTypes[10]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -837,7 +950,7 @@ var file_app_proxyman_config_proto_rawDesc = []byte{
 	0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x73, 0x65, 0x72, 0x69, 0x61, 0x6c, 0x2e, 0x54, 0x79, 0x70, 0x65,
 	0x64, 0x4d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x52, 0x0d, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x53,
 	0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x22, 0x10, 0x0a, 0x0e, 0x4f, 0x75, 0x74, 0x62, 0x6f,
-	0x75, 0x6e, 0x64, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x22, 0xb0, 0x02, 0x0a, 0x0c, 0x53, 0x65,
+	0x75, 0x6e, 0x64, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x22, 0xfd, 0x02, 0x0a, 0x0c, 0x53, 0x65,
 	0x6e, 0x64, 0x65, 0x72, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x2d, 0x0a, 0x03, 0x76, 0x69,
 	0x61, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x1b, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x63,
 	0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x6e, 0x65, 0x74, 0x2e, 0x49, 0x50, 0x4f, 0x72, 0x44, 0x6f,
@@ -856,21 +969,44 @@ var file_app_proxyman_config_proto_rawDesc = []byte{
 	0x28, 0x0b, 0x32, 0x25, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x70, 0x72,
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+	0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -886,7 +1022,7 @@ func file_app_proxyman_config_proto_rawDescGZIP() []byte {
 }
 
 var file_app_proxyman_config_proto_enumTypes = make([]protoimpl.EnumInfo, 2)
-var file_app_proxyman_config_proto_msgTypes = make([]protoimpl.MessageInfo, 10)
+var file_app_proxyman_config_proto_msgTypes = make([]protoimpl.MessageInfo, 11)
 var file_app_proxyman_config_proto_goTypes = []interface{}{
 	(KnownProtocols)(0),                                      // 0: xray.app.proxyman.KnownProtocols
 	(AllocationStrategy_Type)(0),                             // 1: xray.app.proxyman.AllocationStrategy.Type
@@ -898,35 +1034,37 @@ var file_app_proxyman_config_proto_goTypes = []interface{}{
 	(*OutboundConfig)(nil),                                   // 7: xray.app.proxyman.OutboundConfig
 	(*SenderConfig)(nil),                                     // 8: xray.app.proxyman.SenderConfig
 	(*MultiplexingConfig)(nil),                               // 9: xray.app.proxyman.MultiplexingConfig
-	(*AllocationStrategy_AllocationStrategyConcurrency)(nil), // 10: xray.app.proxyman.AllocationStrategy.AllocationStrategyConcurrency
-	(*AllocationStrategy_AllocationStrategyRefresh)(nil),     // 11: xray.app.proxyman.AllocationStrategy.AllocationStrategyRefresh
-	(*net.PortList)(nil),                                     // 12: xray.common.net.PortList
-	(*net.IPOrDomain)(nil),                                   // 13: xray.common.net.IPOrDomain
-	(*internet.StreamConfig)(nil),                            // 14: xray.transport.internet.StreamConfig
-	(*serial.TypedMessage)(nil),                              // 15: xray.common.serial.TypedMessage
-	(*internet.ProxyConfig)(nil),                             // 16: xray.transport.internet.ProxyConfig
+	(*SingMultiplexConfig)(nil),                              // 10: xray.app.proxyman.SingMultiplexConfig
+	(*AllocationStrategy_AllocationStrategyConcurrency)(nil), // 11: xray.app.proxyman.AllocationStrategy.AllocationStrategyConcurrency
+	(*AllocationStrategy_AllocationStrategyRefresh)(nil),     // 12: xray.app.proxyman.AllocationStrategy.AllocationStrategyRefresh
+	(*net.PortList)(nil),                                     // 13: xray.common.net.PortList
+	(*net.IPOrDomain)(nil),                                   // 14: xray.common.net.IPOrDomain
+	(*internet.StreamConfig)(nil),                            // 15: xray.transport.internet.StreamConfig
+	(*serial.TypedMessage)(nil),                              // 16: xray.common.serial.TypedMessage
+	(*internet.ProxyConfig)(nil),                             // 17: xray.transport.internet.ProxyConfig
 }
 var file_app_proxyman_config_proto_depIdxs = []int32{
 	1,  // 0: xray.app.proxyman.AllocationStrategy.type:type_name -> xray.app.proxyman.AllocationStrategy.Type
-	10, // 1: xray.app.proxyman.AllocationStrategy.concurrency:type_name -> xray.app.proxyman.AllocationStrategy.AllocationStrategyConcurrency
-	11, // 2: xray.app.proxyman.AllocationStrategy.refresh:type_name -> xray.app.proxyman.AllocationStrategy.AllocationStrategyRefresh
-	12, // 3: xray.app.proxyman.ReceiverConfig.port_list:type_name -> xray.common.net.PortList
-	13, // 4: xray.app.proxyman.ReceiverConfig.listen:type_name -> xray.common.net.IPOrDomain
+	11, // 1: xray.app.proxyman.AllocationStrategy.concurrency:type_name -> xray.app.proxyman.AllocationStrategy.AllocationStrategyConcurrency
+	12, // 2: xray.app.proxyman.AllocationStrategy.refresh:type_name -> xray.app.proxyman.AllocationStrategy.AllocationStrategyRefresh
+	13, // 3: xray.app.proxyman.ReceiverConfig.port_list:type_name -> xray.common.net.PortList
+	14, // 4: xray.app.proxyman.ReceiverConfig.listen:type_name -> xray.common.net.IPOrDomain
 	3,  // 5: xray.app.proxyman.ReceiverConfig.allocation_strategy:type_name -> xray.app.proxyman.AllocationStrategy
-	14, // 6: xray.app.proxyman.ReceiverConfig.stream_settings:type_name -> xray.transport.internet.StreamConfig
+	15, // 6: xray.app.proxyman.ReceiverConfig.stream_settings:type_name -> xray.transport.internet.StreamConfig
 	0,  // 7: xray.app.proxyman.ReceiverConfig.domain_override:type_name -> xray.app.proxyman.KnownProtocols
 	4,  // 8: xray.app.proxyman.ReceiverConfig.sniffing_settings:type_name -> xray.app.proxyman.SniffingConfig
-	15, // 9: xray.app.proxyman.InboundHandlerConfig.receiver_settings:type_name -> xray.common.serial.TypedMessage
-	15, // 10: xray.app.proxyman.InboundHandlerConfig.proxy_settings:type_name -> xray.common.serial.TypedMessage
-	13, // 11: xray.app.proxyman.SenderConfig.via:type_name -> xray.common.net.IPOrDomain
-	14, // 12: xray.app.proxyman.SenderConfig.stream_settings:type_name -> xray.transport.internet.StreamConfig
-	16, // 13: xray.app.proxyman.SenderConfig.proxy_settings:type_name -> xray.transport.internet.ProxyConfig
+	16, // 9: xray.app.proxyman.InboundHandlerConfig.receiver_settings:type_name -> xray.common.serial.TypedMessage
+	16, // 10: xray.app.proxyman.InboundHandlerConfig.proxy_settings:type_name -> xray.common.serial.TypedMessage
+	14, // 11: xray.app.proxyman.SenderConfig.via:type_name -> xray.common.net.IPOrDomain
+	15, // 12: xray.app.proxyman.SenderConfig.stream_settings:type_name -> xray.transport.internet.StreamConfig
+	17, // 13: xray.app.proxyman.SenderConfig.proxy_settings:type_name -> xray.transport.internet.ProxyConfig
 	9,  // 14: xray.app.proxyman.SenderConfig.multiplex_settings:type_name -> xray.app.proxyman.MultiplexingConfig
-	15, // [15:15] is the sub-list for method output_type
-	15, // [15:15] is the sub-list for method input_type
-	15, // [15:15] is the sub-list for extension type_name
-	15, // [15:15] is the sub-list for extension extendee
-	0,  // [0:15] is the sub-list for field type_name
+	10, // 15: xray.app.proxyman.SenderConfig.smux_settings:type_name -> xray.app.proxyman.SingMultiplexConfig
+	16, // [16:16] is the sub-list for method output_type
+	16, // [16:16] is the sub-list for method input_type
+	16, // [16:16] is the sub-list for extension type_name
+	16, // [16:16] is the sub-list for extension extendee
+	0,  // [0:16] is the sub-list for field type_name
 }
 
 func init() { file_app_proxyman_config_proto_init() }
@@ -1032,7 +1170,7 @@ func file_app_proxyman_config_proto_init() {
 			}
 		}
 		file_app_proxyman_config_proto_msgTypes[8].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*AllocationStrategy_AllocationStrategyConcurrency); i {
+			switch v := v.(*SingMultiplexConfig); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1044,6 +1182,18 @@ func file_app_proxyman_config_proto_init() {
 			}
 		}
 		file_app_proxyman_config_proto_msgTypes[9].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*AllocationStrategy_AllocationStrategyConcurrency); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_proxyman_config_proto_msgTypes[10].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*AllocationStrategy_AllocationStrategyRefresh); i {
 			case 0:
 				return &v.state
@@ -1062,7 +1212,7 @@ func file_app_proxyman_config_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_app_proxyman_config_proto_rawDesc,
 			NumEnums:      2,
-			NumMessages:   10,
+			NumMessages:   11,
 			NumExtensions: 0,
 			NumServices:   0,
 		},

app/proxyman/config.proto

@@ -27,13 +27,13 @@ message AllocationStrategy {
 
   Type type = 1;
 
-  message AllocationStrategyConcurrency { uint32 value = 1; }
+  message AllocationStrategyConcurrency {uint32 value = 1;}
 
   // Number of handlers (ports) running in parallel.
   // Default value is 3 if unset.
   AllocationStrategyConcurrency concurrency = 2;
 
-  message AllocationStrategyRefresh { uint32 value = 1; }
+  message AllocationStrategyRefresh {uint32 value = 1;}
 
   // Number of minutes before a handler is regenerated.
   // Default value is 5 if unset.
@@ -73,7 +73,7 @@ message ReceiverConfig {
   reserved 6;
   // Override domains for the given protocol.
   // Deprecated. Use sniffing_settings.
-  repeated KnownProtocols domain_override = 7 [ deprecated = true ];
+  repeated KnownProtocols domain_override = 7 [deprecated = true];
   SniffingConfig sniffing_settings = 8;
 }
 
@@ -91,11 +91,25 @@ message SenderConfig {
   xray.transport.internet.StreamConfig stream_settings = 2;
   xray.transport.internet.ProxyConfig proxy_settings = 3;
   MultiplexingConfig multiplex_settings = 4;
+  SingMultiplexConfig smux_settings = 5;
 }
 
 message MultiplexingConfig {
   // Whether or not Mux is enabled.
   bool enabled = 1;
   // Max number of concurrent connections that one Mux connection can handle.
-  uint32 concurrency = 2;
+  int32 concurrency = 2;
+  // Transport XUDP in another Mux.
+  int32 xudpConcurrency = 3;
+  // "reject" (default), "allow" or "skip".
+  string xudpProxyUDP443 = 4;
+}
+
+message SingMultiplexConfig {
+  bool enabled = 1;
+  string protocol = 2;
+  int32 max_connections = 3;
+  int32 min_streams = 4;
+  int32 max_streams = 5;
+  bool padding = 6;
 }

app/proxyman/outbound/handler.go

@@ -6,12 +6,15 @@ import (
 	"io"
 	"os"
 
+	sing_mux "github.com/sagernet/sing-mux"
+	sing_net "github.com/sagernet/sing/common/network"
 	"github.com/xtls/xray-core/app/proxyman"
 	"github.com/xtls/xray-core/common"
 	"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/session"
+	"github.com/xtls/xray-core/common/singbridge"
 	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/outbound"
 	"github.com/xtls/xray-core/features/policy"
@@ -57,6 +60,10 @@ type Handler struct {
 	proxy           proxy.Outbound
 	outboundManager outbound.Manager
 	mux             *mux.ClientManager
+	xudp            *mux.ClientManager
+	smux            *sing_mux.Client
+
+	udp443          string
 	uplinkCounter   stats.Counter
 	downlinkCounter stats.Counter
 }
@@ -106,22 +113,65 @@ func NewHandler(ctx context.Context, config *core.OutboundHandlerConfig) (outbou
 	}
 
 	if h.senderSettings != nil && h.senderSettings.MultiplexSettings != nil {
-		config := h.senderSettings.MultiplexSettings
-		if config.Concurrency < 1 || config.Concurrency > 1024 {
-			return nil, newError("invalid mux concurrency: ", config.Concurrency).AtWarning()
-		}
-		h.mux = &mux.ClientManager{
-			Enabled: h.senderSettings.MultiplexSettings.Enabled,
-			Picker: &mux.IncrementalWorkerPicker{
-				Factory: &mux.DialingWorkerFactory{
-					Proxy:  proxyHandler,
-					Dialer: h,
-					Strategy: mux.ClientStrategy{
-						MaxConcurrency: config.Concurrency,
-						MaxConnection:  128,
+		if config := h.senderSettings.MultiplexSettings; config.Enabled {
+			if config.Concurrency < 0 {
+				h.mux = &mux.ClientManager{Enabled: false}
+			}
+			if config.Concurrency == 0 {
+				config.Concurrency = 8 // same as before
+			}
+			if config.Concurrency > 0 {
+				h.mux = &mux.ClientManager{
+					Enabled: true,
+					Picker: &mux.IncrementalWorkerPicker{
+						Factory: &mux.DialingWorkerFactory{
+							Proxy:  proxyHandler,
+							Dialer: h,
+							Strategy: mux.ClientStrategy{
+								MaxConcurrency: uint32(config.Concurrency),
+								MaxConnection:  128,
+							},
+						},
 					},
-				},
-			},
+				}
+			}
+			if config.XudpConcurrency < 0 {
+				h.xudp = &mux.ClientManager{Enabled: false}
+			}
+			if config.XudpConcurrency == 0 {
+				h.xudp = nil // same as before
+			}
+			if config.XudpConcurrency > 0 {
+				h.xudp = &mux.ClientManager{
+					Enabled: true,
+					Picker: &mux.IncrementalWorkerPicker{
+						Factory: &mux.DialingWorkerFactory{
+							Proxy:  proxyHandler,
+							Dialer: h,
+							Strategy: mux.ClientStrategy{
+								MaxConcurrency: uint32(config.XudpConcurrency),
+								MaxConnection:  128,
+							},
+						},
+					},
+				}
+			}
+			h.udp443 = config.XudpProxyUDP443
+		}
+	}
+	if h.senderSettings != nil && h.senderSettings.SmuxSettings != nil {
+		if config := h.senderSettings.SmuxSettings; config.Enabled {
+			h.smux, err = sing_mux.NewClient(sing_mux.Options{
+				Dialer:         singbridge.NewOutboundDialer(proxyHandler, h),
+				Protocol:       config.Protocol,
+				MaxConnections: int(config.MaxConnections),
+				MinStreams:     int(config.MinStreams),
+				MaxStreams:     int(config.MaxStreams),
+				Padding:        config.Padding,
+			})
+			if err != nil {
+				return nil, newError("failed to create sing mux client").Base(err)
+			}
 		}
 	}
 
@@ -136,31 +186,82 @@ func (h *Handler) Tag() string {
 
 // Dispatch implements proxy.Outbound.Dispatch.
 func (h *Handler) Dispatch(ctx context.Context, link *transport.Link) {
-	if h.mux != nil && (h.mux.Enabled || session.MuxPreferedFromContext(ctx)) {
-		if err := h.mux.Dispatch(ctx, link); err != nil {
-			err := newError("failed to process mux outbound traffic").Base(err)
-			session.SubmitOutboundErrorToOriginator(ctx, err)
-			err.WriteToLog(session.ExportIDToError(ctx))
-			common.Interrupt(link.Writer)
-		}
-	} else {
-		err := h.proxy.Process(ctx, link, h)
-		if err != nil {
-			if errors.Is(err, io.EOF) || errors.Is(err, io.ErrClosedPipe) || errors.Is(err, context.Canceled) {
-				err = nil
+	if h.mux != nil {
+		test := func(err error) {
+			if err != nil {
+				err := newError("failed to process mux outbound traffic").Base(err)
+				session.SubmitOutboundErrorToOriginator(ctx, err)
+				err.WriteToLog(session.ExportIDToError(ctx))
+				common.Interrupt(link.Writer)
 			}
 		}
-		if err != nil {
-			// Ensure outbound ray is properly closed.
-			err := newError("failed to process outbound traffic").Base(err)
-			session.SubmitOutboundErrorToOriginator(ctx, err)
-			err.WriteToLog(session.ExportIDToError(ctx))
-			common.Interrupt(link.Writer)
-		} else {
-			common.Must(common.Close(link.Writer))
+		outbound := session.OutboundFromContext(ctx)
+		if outbound.Target.Network == net.Network_UDP && outbound.Target.Port == 443 {
+			switch h.udp443 {
+			case "reject":
+				test(newError("XUDP rejected UDP/443 traffic").AtInfo())
+				return
+			case "skip":
+				goto out
+			}
+		}
+		if h.xudp != nil && outbound.Target.Network == net.Network_UDP {
+			if !h.xudp.Enabled {
+				goto out
+			}
+			test(h.xudp.Dispatch(ctx, link))
+			return
+		}
+		if h.mux.Enabled {
+			test(h.mux.Dispatch(ctx, link))
+			return
 		}
-		common.Interrupt(link.Reader)
 	}
+	if h.smux != nil {
+		test := func(err error) {
+			if err != nil {
+				err := newError("failed to process mux outbound traffic").Base(err)
+				session.SubmitOutboundErrorToOriginator(ctx, err)
+				err.WriteToLog(session.ExportIDToError(ctx))
+				common.Interrupt(link.Writer)
+			}
+		}
+		inbound := session.InboundFromContext(ctx)
+		outbound := session.OutboundFromContext(ctx)
+		if outbound.Target.Network == net.Network_TCP {
+			conn, err := h.smux.DialContext(ctx, sing_net.NetworkTCP, singbridge.ToSocksaddr(outbound.Target))
+			if err != nil {
+				test(err)
+				return
+			}
+			test(singbridge.CopyConn(ctx, inbound.Conn, link, conn))
+		} else {
+			packetConn, err := h.smux.ListenPacket(ctx, singbridge.ToSocksaddr(outbound.Target))
+			if err != nil {
+				test(err)
+				return
+			}
+			test(singbridge.CopyPacketConn(ctx, inbound.Conn, link, outbound.Target, packetConn))
+		}
+		return
+	}
+out:
+	err := h.proxy.Process(ctx, link, h)
+	if err != nil {
+		if errors.Is(err, io.EOF) || errors.Is(err, io.ErrClosedPipe) || errors.Is(err, context.Canceled) {
+			err = nil
+		}
+	}
+	if err != nil {
+		// Ensure outbound ray is properly closed.
+		err := newError("failed to process outbound traffic").Base(err)
+		session.SubmitOutboundErrorToOriginator(ctx, err)
+		err.WriteToLog(session.ExportIDToError(ctx))
+		common.Interrupt(link.Writer)
+	} else {
+		common.Close(link.Writer)
+	}
+	common.Interrupt(link.Reader)
 }
 
 // Address implements internet.Dialer.

app/proxyman/outbound/uot.go

@@ -11,13 +11,21 @@ import (
 )
 
 func (h *Handler) getUoTConnection(ctx context.Context, dest net.Destination) (stat.Connection, error) {
-	if !dest.Address.Family().IsDomain() || dest.Address.Domain() != uot.UOTMagicAddress {
+	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, newError("unable to listen socket").Base(err)
 	}
-	conn := uot.NewServerConn(packetConn)
+	conn := uot.NewServerConn(packetConn, uotVersion)
 	return h.getStatCouterConnection(conn), nil
 }

app/reverse/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: app/reverse/config.proto
 
 package reverse

app/router/command/command.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: app/router/command/command.proto
 
 package command

app/router/command/command_grpc.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
 // versions:
 // - protoc-gen-go-grpc v1.2.0
-// - protoc             v3.18.0
+// - protoc             v3.21.12
 // source: app/router/command/command.proto
 
 package command

app/router/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: app/router/config.proto
 
 package router

app/stats/command/command.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: app/stats/command/command.proto
 
 package command

app/stats/command/command_grpc.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
 // versions:
 // - protoc-gen-go-grpc v1.2.0
-// - protoc             v3.18.0
+// - protoc             v3.21.12
 // source: app/stats/command/command.proto
 
 package command

app/stats/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: app/stats/config.proto
 
 package stats

common/buf/buffer.go

@@ -160,6 +160,19 @@ func (b *Buffer) BytesTo(to int32) []byte {
 	return b.v[b.start : b.start+to]
 }
 
+// Check makes sure that 0 <= b.start <= b.end.
+func (b *Buffer) Check() {
+	if b.start < 0 {
+		b.start = 0
+	}
+	if b.end < 0 {
+		b.end = 0
+	}
+	if b.start > b.end {
+		b.start = b.end
+	}
+}
+
 // Resize cuts the buffer at the given position.
 func (b *Buffer) Resize(from, to int32) {
 	if from < 0 {
@@ -173,6 +186,7 @@ func (b *Buffer) Resize(from, to int32) {
 	}
 	b.end = b.start + to
 	b.start += from
+	b.Check()
 }
 
 // Advance cuts the buffer at the given position.
@@ -181,6 +195,7 @@ func (b *Buffer) Advance(from int32) {
 		from += b.Len()
 	}
 	b.start += from
+	b.Check()
 }
 
 // Len returns the length of the buffer content.

common/buf/reader.go

@@ -7,7 +7,7 @@ import (
 	"github.com/xtls/xray-core/common/errors"
 )
 
-func readOneUDP(r io.Reader) (*Buffer, error) {
+func ReadOneUDP(r io.Reader) (*Buffer, error) {
 	b := New()
 	for i := 0; i < 64; i++ {
 		_, err := b.ReadFrom(r)
@@ -166,7 +166,7 @@ type PacketReader struct {
 
 // ReadMultiBuffer implements Reader.
 func (r *PacketReader) ReadMultiBuffer() (MultiBuffer, error) {
-	b, err := readOneUDP(r.Reader)
+	b, err := ReadOneUDP(r.Reader)
 	if err != nil {
 		return nil, err
 	}

common/log/log.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: common/log/log.proto
 
 package log

common/mux/client.go

@@ -14,6 +14,7 @@ import (
 	"github.com/xtls/xray-core/common/session"
 	"github.com/xtls/xray-core/common/signal/done"
 	"github.com/xtls/xray-core/common/task"
+	"github.com/xtls/xray-core/common/xudp"
 	"github.com/xtls/xray-core/proxy"
 	"github.com/xtls/xray-core/transport"
 	"github.com/xtls/xray-core/transport/internet"
@@ -247,22 +248,20 @@ func fetchInput(ctx context.Context, s *Session, output buf.Writer) {
 		transferType = protocol.TransferTypePacket
 	}
 	s.transferType = transferType
-	writer := NewWriter(s.ID, dest, output, transferType)
-	defer s.Close()
+	writer := NewWriter(s.ID, dest, output, transferType, xudp.GetGlobalID(ctx))
+	defer s.Close(false)
 	defer writer.Close()
 
 	newError("dispatching request to ", dest).WriteToLog(session.ExportIDToError(ctx))
 	if err := writeFirstPayload(s.input, writer); err != nil {
 		newError("failed to write first payload").Base(err).WriteToLog(session.ExportIDToError(ctx))
 		writer.hasError = true
-		common.Interrupt(s.input)
 		return
 	}
 
 	if err := buf.Copy(s.input, writer); err != nil {
 		newError("failed to fetch all input").Base(err).WriteToLog(session.ExportIDToError(ctx))
 		writer.hasError = true
-		common.Interrupt(s.input)
 		return
 	}
 }
@@ -335,15 +334,8 @@ func (m *ClientWorker) handleStatusKeep(meta *FrameMetadata, reader *buf.Buffere
 	err := buf.Copy(rr, s.output)
 	if err != nil && buf.IsWriteError(err) {
 		newError("failed to write to downstream. closing session ", s.ID).Base(err).WriteToLog()
-
-		// Notify remote peer to close this session.
-		closingWriter := NewResponseWriter(meta.SessionID, m.link.Writer, protocol.TransferTypeStream)
-		closingWriter.Close()
-
-		drainErr := buf.Copy(rr, buf.Discard)
-		common.Interrupt(s.input)
-		s.Close()
-		return drainErr
+		s.Close(false)
+		return buf.Copy(rr, buf.Discard)
 	}
 
 	return err
@@ -351,12 +343,7 @@ func (m *ClientWorker) handleStatusKeep(meta *FrameMetadata, reader *buf.Buffere
 
 func (m *ClientWorker) handleStatusEnd(meta *FrameMetadata, reader *buf.BufferedReader) error {
 	if s, found := m.sessionManager.Get(meta.SessionID); found {
-		if meta.Option.Has(OptionError) {
-			common.Interrupt(s.input)
-			common.Interrupt(s.output)
-		}
-		common.Interrupt(s.input)
-		s.Close()
+		s.Close(false)
 	}
 	if meta.Option.Has(OptionData) {
 		return buf.Copy(NewStreamReader(reader), buf.Discard)

common/mux/frame.go

@@ -58,6 +58,7 @@ type FrameMetadata struct {
 	SessionID     uint16
 	Option        bitmask.Byte
 	SessionStatus SessionStatus
+	GlobalID      [8]byte
 }
 
 func (f FrameMetadata) WriteTo(b *buf.Buffer) error {
@@ -81,6 +82,9 @@ func (f FrameMetadata) WriteTo(b *buf.Buffer) error {
 		if err := addrParser.WriteAddressPort(b, f.Target.Address, f.Target.Port); err != nil {
 			return err
 		}
+		if b.UDP != nil { // make sure it's user's proxy request
+			b.Write(f.GlobalID[:]) // no need to check whether it's empty
+		}
 	} else if b.UDP != nil {
 		b.WriteByte(byte(TargetNetworkUDP))
 		addrParser.WriteAddressPort(b, b.UDP.Address, b.UDP.Port)
@@ -122,7 +126,8 @@ func (f *FrameMetadata) UnmarshalFromBuffer(b *buf.Buffer) error {
 	f.Option = bitmask.Byte(b.Byte(3))
 	f.Target.Network = net.Network_Unknown
 
-	if f.SessionStatus == SessionStatusNew || (f.SessionStatus == SessionStatusKeep && b.Len() != 4) {
+	if f.SessionStatus == SessionStatusNew || (f.SessionStatus == SessionStatusKeep && b.Len() > 4 &&
+		TargetNetwork(b.Byte(4)) == TargetNetworkUDP) { // MUST check the flag first
 		if b.Len() < 8 {
 			return newError("insufficient buffer: ", b.Len())
 		}
@@ -144,5 +149,11 @@ func (f *FrameMetadata) UnmarshalFromBuffer(b *buf.Buffer) error {
 		}
 	}
 
+	// Application data is essential, to test whether the pipe is closed.
+	if f.SessionStatus == SessionStatusNew && f.Option.Has(OptionData) &&
+		f.Target.Network == net.Network_UDP && b.Len() >= 8 {
+		copy(f.GlobalID[:], b.Bytes())
+	}
+
 	return nil
 }

common/mux/mux_test.go

@@ -32,13 +32,13 @@ func TestReaderWriter(t *testing.T) {
 	pReader, pWriter := pipe.New(pipe.WithSizeLimit(1024))
 
 	dest := net.TCPDestination(net.DomainAddress("example.com"), 80)
-	writer := NewWriter(1, dest, pWriter, protocol.TransferTypeStream)
+	writer := NewWriter(1, dest, pWriter, protocol.TransferTypeStream, [8]byte{})
 
 	dest2 := net.TCPDestination(net.LocalHostIP, 443)
-	writer2 := NewWriter(2, dest2, pWriter, protocol.TransferTypeStream)
+	writer2 := NewWriter(2, dest2, pWriter, protocol.TransferTypeStream, [8]byte{})
 
 	dest3 := net.TCPDestination(net.LocalHostIPv6, 18374)
-	writer3 := NewWriter(3, dest3, pWriter, protocol.TransferTypeStream)
+	writer3 := NewWriter(3, dest3, pWriter, protocol.TransferTypeStream, [8]byte{})
 
 	writePayload := func(writer *Writer, payload ...byte) error {
 		b := buf.New()

common/mux/server.go

@@ -4,13 +4,17 @@ import (
 	"context"
 	"io"
 
+	sing_mux "github.com/sagernet/sing-mux"
+	"github.com/sagernet/sing/common/metadata"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/log"
 	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/net/cnc"
 	"github.com/xtls/xray-core/common/protocol"
 	"github.com/xtls/xray-core/common/session"
+	"github.com/xtls/xray-core/common/singbridge"
 	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/routing"
 	"github.com/xtls/xray-core/transport"
@@ -38,6 +42,14 @@ func (s *Server) Type() interface{} {
 // Dispatch implements routing.Dispatcher
 func (s *Server) Dispatch(ctx context.Context, dest net.Destination) (*transport.Link, error) {
 	if dest.Address != muxCoolAddress {
+		if dest.Address.Family() == net.AddressFamilyDomain && dest.Address.Domain() == sing_mux.Destination.Fqdn {
+			opts := pipe.OptionsFromContext(ctx)
+			uplinkReader, uplinkWriter := pipe.New(opts...)
+			downlinkReader, downlinkWriter := pipe.New(opts...)
+			conn := cnc.NewConnection(cnc.ConnectionInputMulti(downlinkWriter), cnc.ConnectionOutputMulti(uplinkReader))
+			go sing_mux.HandleConnection(ctx, singbridge.NewDispatcher(s.dispatcher, newError), singbridge.NewLogger(newError), conn, metadata.Metadata{Destination: singbridge.ToSocksaddr(dest)})
+			return &transport.Link{Reader: downlinkReader, Writer: uplinkWriter}, nil
+		}
 		return s.dispatcher.Dispatch(ctx, dest)
 	}
 
@@ -59,6 +71,10 @@ func (s *Server) Dispatch(ctx context.Context, dest net.Destination) (*transport
 // DispatchLink implements routing.Dispatcher
 func (s *Server) DispatchLink(ctx context.Context, dest net.Destination, link *transport.Link) error {
 	if dest.Address != muxCoolAddress {
+		if dest.Address.Family() == net.AddressFamilyDomain && dest.Address.Domain() == sing_mux.Destination.Fqdn {
+			conn := cnc.NewConnection(cnc.ConnectionInputMulti(link.Writer), cnc.ConnectionOutputMulti(link.Reader))
+			return sing_mux.HandleConnection(ctx, singbridge.NewDispatcher(s.dispatcher, newError), singbridge.NewLogger(newError), conn, metadata.Metadata{Destination: singbridge.ToSocksaddr(dest)})
+		}
 		return s.dispatcher.DispatchLink(ctx, dest, link)
 	}
 	_, err := NewServerWorker(ctx, s.dispatcher, link)
@@ -99,7 +115,7 @@ func handle(ctx context.Context, s *Session, output buf.Writer) {
 	}
 
 	writer.Close()
-	s.Close()
+	s.Close(false)
 }
 
 func (w *ServerWorker) ActiveConnections() uint32 {
@@ -131,6 +147,81 @@ func (w *ServerWorker) handleStatusNew(ctx context.Context, meta *FrameMetadata,
 		}
 		ctx = log.ContextWithAccessMessage(ctx, msg)
 	}
+
+	if network := session.AllowedNetworkFromContext(ctx); network != net.Network_Unknown {
+		if meta.Target.Network != network {
+			return newError("unexpected network ", meta.Target.Network) // it will break the whole Mux connection
+		}
+	}
+
+	if meta.GlobalID != [8]byte{} { // MUST ignore empty Global ID
+		mb, err := NewPacketReader(reader, &meta.Target).ReadMultiBuffer()
+		if err != nil {
+			return err
+		}
+		XUDPManager.Lock()
+		x := XUDPManager.Map[meta.GlobalID]
+		if x == nil {
+			x = &XUDP{GlobalID: meta.GlobalID}
+			XUDPManager.Map[meta.GlobalID] = x
+			XUDPManager.Unlock()
+		} else {
+			if x.Status == Initializing { // nearly impossible
+				XUDPManager.Unlock()
+				newError("XUDP hit ", meta.GlobalID).Base(errors.New("conflict")).AtWarning().WriteToLog(session.ExportIDToError(ctx))
+				// It's not a good idea to return an err here, so just let client wait.
+				// Client will receive an End frame after sending a Keep frame.
+				return nil
+			}
+			x.Status = Initializing
+			XUDPManager.Unlock()
+			x.Mux.Close(false) // detach from previous Mux
+			b := buf.New()
+			b.Write(mb[0].Bytes())
+			b.UDP = mb[0].UDP
+			if err = x.Mux.output.WriteMultiBuffer(mb); err != nil {
+				x.Interrupt()
+				mb = buf.MultiBuffer{b}
+			} else {
+				b.Release()
+				mb = nil
+			}
+			newError("XUDP hit ", meta.GlobalID).Base(err).WriteToLog(session.ExportIDToError(ctx))
+		}
+		if mb != nil {
+			ctx = session.ContextWithTimeoutOnly(ctx, true)
+			// Actually, it won't return an error in Xray-core's implementations.
+			link, err := w.dispatcher.Dispatch(ctx, meta.Target)
+			if err != nil {
+				XUDPManager.Lock()
+				delete(XUDPManager.Map, x.GlobalID)
+				XUDPManager.Unlock()
+				err = newError("XUDP new ", meta.GlobalID).Base(errors.New("failed to dispatch request to ", meta.Target).Base(err))
+				return err // it will break the whole Mux connection
+			}
+			link.Writer.WriteMultiBuffer(mb) // it's meaningless to test a new pipe
+			x.Mux = &Session{
+				input:  link.Reader,
+				output: link.Writer,
+			}
+			newError("XUDP new ", meta.GlobalID).Base(err).WriteToLog(session.ExportIDToError(ctx))
+		}
+		x.Mux = &Session{
+			input:        x.Mux.input,
+			output:       x.Mux.output,
+			parent:       w.sessionManager,
+			ID:           meta.SessionID,
+			transferType: protocol.TransferTypePacket,
+			XUDP:         x,
+		}
+		go handle(ctx, x.Mux, w.link.Writer)
+		x.Status = Active
+		if !w.sessionManager.Add(x.Mux) {
+			x.Mux.Close(false)
+		}
+		return nil
+	}
+
 	link, err := w.dispatcher.Dispatch(ctx, meta.Target)
 	if err != nil {
 		if meta.Option.Has(OptionData) {
@@ -157,8 +248,7 @@ func (w *ServerWorker) handleStatusNew(ctx context.Context, meta *FrameMetadata,
 	rr := s.NewReader(reader, &meta.Target)
 	if err := buf.Copy(rr, s.output); err != nil {
 		buf.Copy(rr, buf.Discard)
-		common.Interrupt(s.input)
-		return s.Close()
+		return s.Close(false)
 	}
 	return nil
 }
@@ -182,15 +272,8 @@ func (w *ServerWorker) handleStatusKeep(meta *FrameMetadata, reader *buf.Buffere
 
 	if err != nil && buf.IsWriteError(err) {
 		newError("failed to write to downstream writer. closing session ", s.ID).Base(err).WriteToLog()
-
-		// Notify remote peer to close this session.
-		closingWriter := NewResponseWriter(meta.SessionID, w.link.Writer, protocol.TransferTypeStream)
-		closingWriter.Close()
-
-		drainErr := buf.Copy(rr, buf.Discard)
-		common.Interrupt(s.input)
-		s.Close()
-		return drainErr
+		s.Close(false)
+		return buf.Copy(rr, buf.Discard)
 	}
 
 	return err
@@ -198,12 +281,7 @@ func (w *ServerWorker) handleStatusKeep(meta *FrameMetadata, reader *buf.Buffere
 
 func (w *ServerWorker) handleStatusEnd(meta *FrameMetadata, reader *buf.BufferedReader) error {
 	if s, found := w.sessionManager.Get(meta.SessionID); found {
-		if meta.Option.Has(OptionError) {
-			common.Interrupt(s.input)
-			common.Interrupt(s.output)
-		}
-		common.Interrupt(s.input)
-		s.Close()
+		s.Close(false)
 	}
 	if meta.Option.Has(OptionData) {
 		return buf.Copy(NewStreamReader(reader), buf.Discard)

common/mux/session.go

@@ -1,12 +1,16 @@
 package mux
 
 import (
+	"io"
+	"runtime"
 	"sync"
+	"time"
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/protocol"
+	"github.com/xtls/xray-core/transport/pipe"
 )
 
 type SessionManager struct {
@@ -61,21 +65,25 @@ func (m *SessionManager) Allocate() *Session {
 	return s
 }
 
-func (m *SessionManager) Add(s *Session) {
+func (m *SessionManager) Add(s *Session) bool {
 	m.Lock()
 	defer m.Unlock()
 
 	if m.closed {
-		return
+		return false
 	}
 
 	m.count++
 	m.sessions[s.ID] = s
+	return true
 }
 
-func (m *SessionManager) Remove(id uint16) {
-	m.Lock()
-	defer m.Unlock()
+func (m *SessionManager) Remove(locked bool, id uint16) {
+	if !locked {
+		m.Lock()
+		defer m.Unlock()
+	}
+	locked = true
 
 	if m.closed {
 		return
@@ -83,9 +91,11 @@ func (m *SessionManager) Remove(id uint16) {
 
 	delete(m.sessions, id)
 
-	if len(m.sessions) == 0 {
-		m.sessions = make(map[uint16]*Session, 16)
-	}
+	/*
+		if len(m.sessions) == 0 {
+			m.sessions = make(map[uint16]*Session, 16)
+		}
+	*/
 }
 
 func (m *SessionManager) Get(id uint16) (*Session, bool) {
@@ -127,8 +137,7 @@ func (m *SessionManager) Close() error {
 	m.closed = true
 
 	for _, s := range m.sessions {
-		common.Close(s.input)
-		common.Close(s.output)
+		s.Close(true)
 	}
 
 	m.sessions = nil
@@ -142,13 +151,40 @@ type Session struct {
 	parent       *SessionManager
 	ID           uint16
 	transferType protocol.TransferType
+	closed       bool
+	XUDP         *XUDP
 }
 
 // Close closes all resources associated with this session.
-func (s *Session) Close() error {
-	common.Close(s.output)
-	common.Close(s.input)
-	s.parent.Remove(s.ID)
+func (s *Session) Close(locked bool) error {
+	if !locked {
+		s.parent.Lock()
+		defer s.parent.Unlock()
+	}
+	locked = true
+	if s.closed {
+		return nil
+	}
+	s.closed = true
+	if s.XUDP == nil {
+		common.Interrupt(s.input)
+		common.Close(s.output)
+	} else {
+		// Stop existing handle(), then trigger writer.Close().
+		// Note that s.output may be dispatcher.SizeStatWriter.
+		s.input.(*pipe.Reader).ReturnAnError(io.EOF)
+		runtime.Gosched()
+		// If the error set by ReturnAnError still exists, clear it.
+		s.input.(*pipe.Reader).Recover()
+		XUDPManager.Lock()
+		if s.XUDP.Status == Active {
+			s.XUDP.Expire = time.Now().Add(time.Minute)
+			s.XUDP.Status = Expiring
+			newError("XUDP put ", s.XUDP.GlobalID).AtDebug().WriteToLog()
+		}
+		XUDPManager.Unlock()
+	}
+	s.parent.Remove(locked, s.ID)
 	return nil
 }
 
@@ -159,3 +195,45 @@ func (s *Session) NewReader(reader *buf.BufferedReader, dest *net.Destination) b
 	}
 	return NewPacketReader(reader, dest)
 }
+
+const (
+	Initializing = 0
+	Active       = 1
+	Expiring     = 2
+)
+
+type XUDP struct {
+	GlobalID [8]byte
+	Status   uint64
+	Expire   time.Time
+	Mux      *Session
+}
+
+func (x *XUDP) Interrupt() {
+	common.Interrupt(x.Mux.input)
+	common.Close(x.Mux.output)
+}
+
+var XUDPManager struct {
+	sync.Mutex
+	Map map[[8]byte]*XUDP
+}
+
+func init() {
+	XUDPManager.Map = make(map[[8]byte]*XUDP)
+	go func() {
+		for {
+			time.Sleep(time.Minute)
+			now := time.Now()
+			XUDPManager.Lock()
+			for id, x := range XUDPManager.Map {
+				if x.Status == Expiring && now.After(x.Expire) {
+					x.Interrupt()
+					delete(XUDPManager.Map, id)
+					newError("XUDP del ", id).AtDebug().WriteToLog()
+				}
+			}
+			XUDPManager.Unlock()
+		}
+	}()
+}

common/mux/session_test.go

@@ -44,7 +44,7 @@ func TestSessionManagerClose(t *testing.T) {
 	if m.CloseIfNoSession() {
 		t.Error("able to close")
 	}
-	m.Remove(s.ID)
+	m.Remove(false, s.ID)
 	if !m.CloseIfNoSession() {
 		t.Error("not able to close")
 	}

common/mux/writer.go

@@ -15,15 +15,17 @@ type Writer struct {
 	followup     bool
 	hasError     bool
 	transferType protocol.TransferType
+	globalID     [8]byte
 }
 
-func NewWriter(id uint16, dest net.Destination, writer buf.Writer, transferType protocol.TransferType) *Writer {
+func NewWriter(id uint16, dest net.Destination, writer buf.Writer, transferType protocol.TransferType, globalID [8]byte) *Writer {
 	return &Writer{
 		id:           id,
 		dest:         dest,
 		writer:       writer,
 		followup:     false,
 		transferType: transferType,
+		globalID:     globalID,
 	}
 }
 
@@ -40,6 +42,7 @@ func (w *Writer) getNextFrameMeta() FrameMetadata {
 	meta := FrameMetadata{
 		SessionID: w.id,
 		Target:    w.dest,
+		GlobalID:  w.globalID,
 	}
 
 	if w.followup {

common/net/address.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: common/net/address.proto
 
 package net

common/net/destination.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: common/net/destination.proto
 
 package net

common/net/network.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: common/net/network.proto
 
 package net

common/net/port.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: common/net/port.proto
 
 package net

common/protocol/headers.go

@@ -6,6 +6,7 @@ import (
 	"github.com/xtls/xray-core/common/bitmask"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/uuid"
+	"golang.org/x/sys/cpu"
 )
 
 // RequestCommand is a custom command in a proxy request.
@@ -79,9 +80,21 @@ type CommandSwitchAccount struct {
 	ValidMin byte
 }
 
+var (
+	hasGCMAsmAMD64 = cpu.X86.HasAES && cpu.X86.HasPCLMULQDQ
+	hasGCMAsmARM64 = cpu.ARM64.HasAES && cpu.ARM64.HasPMULL
+	// Keep in sync with crypto/aes/cipher_s390x.go.
+	hasGCMAsmS390X = cpu.S390X.HasAES && cpu.S390X.HasAESCBC && cpu.S390X.HasAESCTR &&
+		(cpu.S390X.HasGHASH || cpu.S390X.HasAESGCM)
+
+	hasAESGCMHardwareSupport = runtime.GOARCH == "amd64" && hasGCMAsmAMD64 ||
+		runtime.GOARCH == "arm64" && hasGCMAsmARM64 ||
+		runtime.GOARCH == "s390x" && hasGCMAsmS390X
+)
+
 func (sc *SecurityConfig) GetSecurityType() SecurityType {
 	if sc == nil || sc.Type == SecurityType_AUTO {
-		if runtime.GOARCH == "amd64" || runtime.GOARCH == "s390x" || runtime.GOARCH == "arm64" {
+		if hasAESGCMHardwareSupport {
 			return SecurityType_AES128_GCM
 		}
 		return SecurityType_CHACHA20_POLY1305

common/protocol/headers.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: common/protocol/headers.proto
 
 package protocol

common/protocol/quic/qtls_go118.go

@@ -1,16 +1,18 @@
 package quic
 
 import (
+	"crypto"
 	"crypto/cipher"
-
-	"github.com/marten-seemann/qtls-go1-18"
+	_ "crypto/tls"
+	_ "unsafe"
 )
 
-type (
-	// A CipherSuiteTLS13 is a cipher suite for TLS 1.3
-	CipherSuiteTLS13 = qtls.CipherSuiteTLS13
-)
-
-func AEADAESGCMTLS13(key, fixedNonce []byte) cipher.AEAD {
-	return qtls.AEADAESGCMTLS13(key, fixedNonce)
+type CipherSuiteTLS13 struct {
+	ID     uint16
+	KeyLen int
+	AEAD   func(key, fixedNonce []byte) cipher.AEAD
+	Hash   crypto.Hash
 }
+
+//go:linkname AEADAESGCMTLS13 crypto/tls.aeadAESGCMTLS13
+func AEADAESGCMTLS13(key, nonceMask []byte) cipher.AEAD

common/protocol/quic/sniff.go

@@ -7,9 +7,10 @@ import (
 	"encoding/binary"
 	"io"
 
-	"github.com/lucas-clemente/quic-go/quicvarint"
+	"github.com/quic-go/quic-go/quicvarint"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
+	"github.com/xtls/xray-core/common/bytespool"
 	"github.com/xtls/xray-core/common/errors"
 	ptls "github.com/xtls/xray-core/common/protocol/tls"
 	"golang.org/x/crypto/hkdf"
@@ -141,7 +142,7 @@ func SniffQUIC(b []byte) (*SniffHeader, error) {
 		packetNumber = uint32(n)
 	}
 
-	if packetNumber != 0 {
+	if packetNumber != 0 && packetNumber != 1 {
 		return nil, errNotQuicInitial
 	}
 
@@ -159,32 +160,92 @@ func SniffQUIC(b []byte) (*SniffHeader, error) {
 		return nil, err
 	}
 	buffer = buf.FromBytes(decrypted)
-	frameType, err := buffer.ReadByte()
-	if err != nil {
-		return nil, io.ErrUnexpectedEOF
+
+	cryptoLen := uint(0)
+	cryptoData := bytespool.Alloc(buffer.Len())
+	defer bytespool.Free(cryptoData)
+	for i := 0; !buffer.IsEmpty(); i++ {
+		frameType := byte(0x0) // Default to PADDING frame
+		for frameType == 0x0 && !buffer.IsEmpty() {
+			frameType, _ = buffer.ReadByte()
+		}
+		switch frameType {
+		case 0x00: // PADDING frame
+		case 0x01: // PING frame
+		case 0x02, 0x03: // ACK frame
+			if _, err = quicvarint.Read(buffer); err != nil { // Field: Largest Acknowledged
+				return nil, io.ErrUnexpectedEOF
+			}
+			if _, err = quicvarint.Read(buffer); err != nil { // Field: ACK Delay
+				return nil, io.ErrUnexpectedEOF
+			}
+			ackRangeCount, err := quicvarint.Read(buffer) // Field: ACK Range Count
+			if err != nil {
+				return nil, io.ErrUnexpectedEOF
+			}
+			if _, err = quicvarint.Read(buffer); err != nil { // Field: First ACK Range
+				return nil, io.ErrUnexpectedEOF
+			}
+			for i := 0; i < int(ackRangeCount); i++ { // Field: ACK Range
+				if _, err = quicvarint.Read(buffer); err != nil { // Field: ACK Range -> Gap
+					return nil, io.ErrUnexpectedEOF
+				}
+				if _, err = quicvarint.Read(buffer); err != nil { // Field: ACK Range -> ACK Range Length
+					return nil, io.ErrUnexpectedEOF
+				}
+			}
+			if frameType == 0x03 {
+				if _, err = quicvarint.Read(buffer); err != nil { // Field: ECN Counts -> ECT0 Count
+					return nil, io.ErrUnexpectedEOF
+				}
+				if _, err = quicvarint.Read(buffer); err != nil { // Field: ECN Counts -> ECT1 Count
+					return nil, io.ErrUnexpectedEOF
+				}
+				if _, err = quicvarint.Read(buffer); err != nil { //nolint:misspell // Field: ECN Counts -> ECT-CE Count
+					return nil, io.ErrUnexpectedEOF
+				}
+			}
+		case 0x06: // CRYPTO frame, we will use this frame
+			offset, err := quicvarint.Read(buffer) // Field: Offset
+			if err != nil {
+				return nil, io.ErrUnexpectedEOF
+			}
+			length, err := quicvarint.Read(buffer) // Field: Length
+			if err != nil || length > uint64(buffer.Len()) {
+				return nil, io.ErrUnexpectedEOF
+			}
+			if cryptoLen < uint(offset+length) {
+				cryptoLen = uint(offset + length)
+			}
+			if _, err := buffer.Read(cryptoData[offset : offset+length]); err != nil { // Field: Crypto Data
+				return nil, io.ErrUnexpectedEOF
+			}
+		case 0x1c: // CONNECTION_CLOSE frame, only 0x1c is permitted in initial packet
+			if _, err = quicvarint.Read(buffer); err != nil { // Field: Error Code
+				return nil, io.ErrUnexpectedEOF
+			}
+			if _, err = quicvarint.Read(buffer); err != nil { // Field: Frame Type
+				return nil, io.ErrUnexpectedEOF
+			}
+			length, err := quicvarint.Read(buffer) // Field: Reason Phrase Length
+			if err != nil {
+				return nil, io.ErrUnexpectedEOF
+			}
+			if _, err := buffer.ReadBytes(int32(length)); err != nil { // Field: Reason Phrase
+				return nil, io.ErrUnexpectedEOF
+			}
+		default:
+			// Only above frame types are permitted in initial packet.
+			// See https://www.rfc-editor.org/rfc/rfc9000.html#section-17.2.2-8
+			return nil, errNotQuicInitial
+		}
 	}
-	if frameType != 0x6 {
-		// not crypto frame
-		return &SniffHeader{domain: ""}, nil
-	}
-	if common.Error2(quicvarint.Read(buffer)) != nil {
-		return nil, io.ErrUnexpectedEOF
-	}
-	dataLen, err := quicvarint.Read(buffer)
-	if err != nil {
-		return nil, io.ErrUnexpectedEOF
-	}
-	if dataLen > uint64(buffer.Len()) {
-		return nil, io.ErrUnexpectedEOF
-	}
-	frameData, err := buffer.ReadBytes(int32(dataLen))
-	common.Must(err)
+
 	tlsHdr := &ptls.SniffHeader{}
-	err = ptls.ReadClientHello(frameData, tlsHdr)
+	err = ptls.ReadClientHello(cryptoData[:cryptoLen], tlsHdr)
 	if err != nil {
 		return nil, err
 	}
-
 	return &SniffHeader{domain: tlsHdr.Domain()}, nil
 }
 

common/protocol/server_spec.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: common/protocol/server_spec.proto
 
 package protocol

common/protocol/user.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: common/protocol/user.proto
 
 package protocol

common/serial/typed_message.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: common/serial/typed_message.proto
 
 package serial

common/session/context.go

@@ -2,10 +2,15 @@ package session
 
 import (
 	"context"
+	_ "unsafe"
 
+	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/features/routing"
 )
 
+//go:linkname IndependentCancelCtx context.newCancelCtx
+func IndependentCancelCtx(parent context.Context) context.Context
+
 type sessionKey int
 
 const (
@@ -17,6 +22,8 @@ const (
 	sockoptSessionKey
 	trackedConnectionErrorKey
 	dispatcherKey
+	timeoutOnlyKey
+	allowedNetworkKey
 )
 
 // ContextWithID returns a new context with the given ID.
@@ -131,3 +138,25 @@ func DispatcherFromContext(ctx context.Context) routing.Dispatcher {
 	}
 	return nil
 }
+
+func ContextWithTimeoutOnly(ctx context.Context, only bool) context.Context {
+	return context.WithValue(ctx, timeoutOnlyKey, only)
+}
+
+func TimeoutOnlyFromContext(ctx context.Context) bool {
+	if val, ok := ctx.Value(timeoutOnlyKey).(bool); ok {
+		return val
+	}
+	return false
+}
+
+func ContextWithAllowedNetwork(ctx context.Context, network net.Network) context.Context {
+	return context.WithValue(ctx, allowedNetworkKey, network)
+}
+
+func AllowedNetworkFromContext(ctx context.Context) net.Network {
+	if val, ok := ctx.Value(allowedNetworkKey).(net.Network); ok {
+		return val
+	}
+	return net.Network_Unknown
+}

common/session/session.go

@@ -42,6 +42,8 @@ type Inbound struct {
 	Gateway net.Destination
 	// Tag of the inbound proxy that handles the connection.
 	Tag string
+	// Name of the inbound proxy that handles the connection.
+	Name string
 	// User is the user that authencates for the inbound. May be nil if the protocol allows anounymous traffic.
 	User *protocol.MemoryUser
 	// Conn is actually internet.Connection. May be nil.

common/singbridge/destination.go

@@ -0,0 +1,46 @@
+package singbridge
+
+import (
+	M "github.com/sagernet/sing/common/metadata"
+	N "github.com/sagernet/sing/common/network"
+	"github.com/xtls/xray-core/common/net"
+)
+
+func ToNetwork(network string) net.Network {
+	switch N.NetworkName(network) {
+	case N.NetworkTCP:
+		return net.Network_TCP
+	case N.NetworkUDP:
+		return net.Network_UDP
+	default:
+		return net.Network_Unknown
+	}
+}
+
+func ToDestination(socksaddr M.Socksaddr, network net.Network) net.Destination {
+	if socksaddr.IsFqdn() {
+		return net.Destination{
+			Network: network,
+			Address: net.DomainAddress(socksaddr.Fqdn),
+			Port:    net.Port(socksaddr.Port),
+		}
+	} else {
+		return net.Destination{
+			Network: network,
+			Address: net.IPAddress(socksaddr.Addr.AsSlice()),
+			Port:    net.Port(socksaddr.Port),
+		}
+	}
+}
+
+func ToSocksaddr(destination net.Destination) M.Socksaddr {
+	var addr M.Socksaddr
+	switch destination.Address.Family() {
+	case net.AddressFamilyDomain:
+		addr.Fqdn = destination.Address.Domain()
+	default:
+		addr.Addr = M.AddrFromIP(destination.Address.IP())
+	}
+	addr.Port = uint16(destination.Port)
+	return addr
+}

common/singbridge/dialer.go

@@ -0,0 +1,59 @@
+package singbridge
+
+import (
+	"context"
+	"os"
+
+	M "github.com/sagernet/sing/common/metadata"
+	N "github.com/sagernet/sing/common/network"
+	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/net/cnc"
+	"github.com/xtls/xray-core/common/session"
+	"github.com/xtls/xray-core/proxy"
+	"github.com/xtls/xray-core/transport"
+	"github.com/xtls/xray-core/transport/internet"
+	"github.com/xtls/xray-core/transport/pipe"
+)
+
+var _ N.Dialer = (*XrayDialer)(nil)
+
+type XrayDialer struct {
+	internet.Dialer
+}
+
+func NewDialer(dialer internet.Dialer) *XrayDialer {
+	return &XrayDialer{dialer}
+}
+
+func (d *XrayDialer) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
+	return d.Dialer.Dial(ctx, ToDestination(destination, ToNetwork(network)))
+}
+
+func (d *XrayDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
+	return nil, os.ErrInvalid
+}
+
+type XrayOutboundDialer struct {
+	outbound proxy.Outbound
+	dialer   internet.Dialer
+}
+
+func NewOutboundDialer(outbound proxy.Outbound, dialer internet.Dialer) *XrayOutboundDialer {
+	return &XrayOutboundDialer{outbound, dialer}
+}
+
+func (d *XrayOutboundDialer) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
+	ctx = session.ContextWithOutbound(context.Background(), &session.Outbound{
+		Target: ToDestination(destination, ToNetwork(network)),
+	})
+	opts := []pipe.Option{pipe.WithSizeLimit(64 * 1024)}
+	uplinkReader, uplinkWriter := pipe.New(opts...)
+	downlinkReader, downlinkWriter := pipe.New(opts...)
+	conn := cnc.NewConnection(cnc.ConnectionInputMulti(downlinkWriter), cnc.ConnectionOutputMulti(uplinkReader))
+	go d.outbound.Process(ctx, &transport.Link{Reader: downlinkReader, Writer: uplinkWriter}, d.dialer)
+	return conn, nil
+}
+
+func (d *XrayOutboundDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
+	return nil, os.ErrInvalid
+}

common/singbridge/error.go

@@ -0,0 +1,10 @@
+package singbridge
+
+import E "github.com/sagernet/sing/common/exceptions"
+
+func ReturnError(err error) error {
+	if E.IsClosedOrCanceled(err) {
+		return nil
+	}
+	return err
+}

common/singbridge/handler.go

@@ -0,0 +1,51 @@
+package singbridge
+
+import (
+	"context"
+
+	"github.com/sagernet/sing/common/bufio"
+	M "github.com/sagernet/sing/common/metadata"
+	N "github.com/sagernet/sing/common/network"
+	"github.com/xtls/xray-core/common/errors"
+	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/session"
+	"github.com/xtls/xray-core/features/routing"
+	"github.com/xtls/xray-core/transport"
+)
+
+var (
+	_ N.TCPConnectionHandler = (*Dispatcher)(nil)
+	_ N.UDPConnectionHandler = (*Dispatcher)(nil)
+)
+
+type Dispatcher struct {
+	upstream     routing.Dispatcher
+	newErrorFunc func(values ...any) *errors.Error
+}
+
+func NewDispatcher(dispatcher routing.Dispatcher, newErrorFunc func(values ...any) *errors.Error) *Dispatcher {
+	return &Dispatcher{
+		upstream:     dispatcher,
+		newErrorFunc: newErrorFunc,
+	}
+}
+
+func (d *Dispatcher) NewConnection(ctx context.Context, conn net.Conn, metadata M.Metadata) error {
+	xConn := NewConn(conn)
+	return d.upstream.DispatchLink(ctx, ToDestination(metadata.Destination, net.Network_TCP), &transport.Link{
+		Reader: xConn,
+		Writer: xConn,
+	})
+}
+
+func (d *Dispatcher) NewPacketConnection(ctx context.Context, conn N.PacketConn, metadata M.Metadata) error {
+	packetConn := &PacketConn{bufio.NewBindPacketConn(conn.(net.PacketConn), metadata.Destination), ToDestination(metadata.Destination, net.Network_UDP)}
+	return d.upstream.DispatchLink(ctx, ToDestination(metadata.Destination, net.Network_UDP), &transport.Link{
+		Reader: packetConn,
+		Writer: packetConn,
+	})
+}
+
+func (d *Dispatcher) NewError(ctx context.Context, err error) {
+	d.newErrorFunc(err).WriteToLog(session.ExportIDToError(ctx))
+}

common/singbridge/logger.go

@@ -0,0 +1,71 @@
+package singbridge
+
+import (
+	"context"
+
+	"github.com/sagernet/sing/common/logger"
+	"github.com/xtls/xray-core/common/errors"
+	"github.com/xtls/xray-core/common/session"
+)
+
+var _ logger.ContextLogger = (*XrayLogger)(nil)
+
+type XrayLogger struct {
+	newError func(values ...any) *errors.Error
+}
+
+func NewLogger(newErrorFunc func(values ...any) *errors.Error) *XrayLogger {
+	return &XrayLogger{
+		newErrorFunc,
+	}
+}
+
+func (l *XrayLogger) Trace(args ...any) {
+}
+
+func (l *XrayLogger) Debug(args ...any) {
+	l.newError(args...).AtDebug().WriteToLog()
+}
+
+func (l *XrayLogger) Info(args ...any) {
+	l.newError(args...).AtInfo().WriteToLog()
+}
+
+func (l *XrayLogger) Warn(args ...any) {
+	l.newError(args...).AtWarning().WriteToLog()
+}
+
+func (l *XrayLogger) Error(args ...any) {
+	l.newError(args...).AtError().WriteToLog()
+}
+
+func (l *XrayLogger) Fatal(args ...any) {
+}
+
+func (l *XrayLogger) Panic(args ...any) {
+}
+
+func (l *XrayLogger) TraceContext(ctx context.Context, args ...any) {
+}
+
+func (l *XrayLogger) DebugContext(ctx context.Context, args ...any) {
+	l.newError(args...).AtDebug().WriteToLog(session.ExportIDToError(ctx))
+}
+
+func (l *XrayLogger) InfoContext(ctx context.Context, args ...any) {
+	l.newError(args...).AtInfo().WriteToLog(session.ExportIDToError(ctx))
+}
+
+func (l *XrayLogger) WarnContext(ctx context.Context, args ...any) {
+	l.newError(args...).AtWarning().WriteToLog(session.ExportIDToError(ctx))
+}
+
+func (l *XrayLogger) ErrorContext(ctx context.Context, args ...any) {
+	l.newError(args...).AtError().WriteToLog(session.ExportIDToError(ctx))
+}
+
+func (l *XrayLogger) FatalContext(ctx context.Context, args ...any) {
+}
+
+func (l *XrayLogger) PanicContext(ctx context.Context, args ...any) {
+}

common/singbridge/packet.go

@@ -0,0 +1,82 @@
+package singbridge
+
+import (
+	"context"
+
+	B "github.com/sagernet/sing/common/buf"
+	"github.com/sagernet/sing/common/bufio"
+	M "github.com/sagernet/sing/common/metadata"
+	"github.com/xtls/xray-core/common/buf"
+	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/transport"
+)
+
+func CopyPacketConn(ctx context.Context, inboundConn net.Conn, link *transport.Link, destination net.Destination, serverConn net.PacketConn) error {
+	conn := &PacketConnWrapper{
+		Reader: link.Reader,
+		Writer: link.Writer,
+		Dest:   destination,
+		Conn:   inboundConn,
+	}
+	return ReturnError(bufio.CopyPacketConn(ctx, conn, bufio.NewPacketConn(serverConn)))
+}
+
+type PacketConnWrapper struct {
+	buf.Reader
+	buf.Writer
+	net.Conn
+	Dest   net.Destination
+	cached buf.MultiBuffer
+}
+
+func (w *PacketConnWrapper) ReadPacket(buffer *B.Buffer) (M.Socksaddr, error) {
+	if w.cached != nil {
+		mb, bb := buf.SplitFirst(w.cached)
+		if bb == nil {
+			w.cached = nil
+		} else {
+			buffer.Write(bb.Bytes())
+			w.cached = mb
+			var destination net.Destination
+			if bb.UDP != nil {
+				destination = *bb.UDP
+			} else {
+				destination = w.Dest
+			}
+			bb.Release()
+			return ToSocksaddr(destination), nil
+		}
+	}
+	mb, err := w.ReadMultiBuffer()
+	if err != nil {
+		return M.Socksaddr{}, err
+	}
+	nb, bb := buf.SplitFirst(mb)
+	if bb == nil {
+		return M.Socksaddr{}, nil
+	} else {
+		buffer.Write(bb.Bytes())
+		w.cached = nb
+		var destination net.Destination
+		if bb.UDP != nil {
+			destination = *bb.UDP
+		} else {
+			destination = w.Dest
+		}
+		bb.Release()
+		return ToSocksaddr(destination), nil
+	}
+}
+
+func (w *PacketConnWrapper) WritePacket(buffer *B.Buffer, destination M.Socksaddr) error {
+	vBuf := buf.New()
+	vBuf.Write(buffer.Bytes())
+	endpoint := ToDestination(destination, net.Network_UDP)
+	vBuf.UDP = &endpoint
+	return w.Writer.WriteMultiBuffer(buf.MultiBuffer{vBuf})
+}
+
+func (w *PacketConnWrapper) Close() error {
+	buf.ReleaseMulti(w.cached)
+	return nil
+}

common/singbridge/pipe.go

@@ -0,0 +1,61 @@
+package singbridge
+
+import (
+	"context"
+	"io"
+	"net"
+
+	"github.com/sagernet/sing/common/bufio"
+	"github.com/xtls/xray-core/common/buf"
+	"github.com/xtls/xray-core/transport"
+)
+
+func CopyConn(ctx context.Context, inboundConn net.Conn, link *transport.Link, serverConn net.Conn) error {
+	conn := &PipeConnWrapper{
+		W:    link.Writer,
+		Conn: inboundConn,
+	}
+	if ir, ok := link.Reader.(io.Reader); ok {
+		conn.R = ir
+	} else {
+		conn.R = &buf.BufferedReader{Reader: link.Reader}
+	}
+	return ReturnError(bufio.CopyConn(ctx, conn, serverConn))
+}
+
+type PipeConnWrapper struct {
+	R io.Reader
+	W buf.Writer
+	net.Conn
+}
+
+func (w *PipeConnWrapper) Close() error {
+	return nil
+}
+
+func (w *PipeConnWrapper) Read(b []byte) (n int, err error) {
+	return w.R.Read(b)
+}
+
+func (w *PipeConnWrapper) Write(p []byte) (n int, err error) {
+	n = len(p)
+	var mb buf.MultiBuffer
+	pLen := len(p)
+	for pLen > 0 {
+		buffer := buf.New()
+		if pLen > buf.Size {
+			_, err = buffer.Write(p[:buf.Size])
+			p = p[buf.Size:]
+		} else {
+			buffer.Write(p)
+		}
+		pLen -= int(buffer.Len())
+		mb = append(mb, buffer)
+	}
+	err = w.W.WriteMultiBuffer(mb)
+	if err != nil {
+		n = 0
+		buf.ReleaseMulti(mb)
+	}
+	return
+}

common/singbridge/reader.go

@@ -0,0 +1,98 @@
+package singbridge
+
+import (
+	"time"
+
+	"github.com/sagernet/sing/common"
+	"github.com/sagernet/sing/common/bufio"
+	N "github.com/sagernet/sing/common/network"
+	"github.com/xtls/xray-core/common/buf"
+	"github.com/xtls/xray-core/common/net"
+)
+
+var (
+	_ buf.Reader        = (*Conn)(nil)
+	_ buf.TimeoutReader = (*Conn)(nil)
+	_ buf.Writer        = (*Conn)(nil)
+	_ buf.Reader        = (*PacketConn)(nil)
+	_ buf.TimeoutReader = (*PacketConn)(nil)
+	_ buf.Writer        = (*PacketConn)(nil)
+)
+
+type Conn struct {
+	net.Conn
+	writer N.VectorisedWriter
+}
+
+func NewConn(conn net.Conn) *Conn {
+	writer, _ := bufio.CreateVectorisedWriter(conn)
+	return &Conn{
+		Conn:   conn,
+		writer: writer,
+	}
+}
+
+func (c *Conn) ReadMultiBuffer() (buf.MultiBuffer, error) {
+	buffer, err := buf.ReadBuffer(c.Conn)
+	if err != nil {
+		return nil, err
+	}
+	return buf.MultiBuffer{buffer}, nil
+}
+
+func (c *Conn) ReadMultiBufferTimeout(duration time.Duration) (buf.MultiBuffer, error) {
+	err := c.SetReadDeadline(time.Now().Add(duration))
+	if err != nil {
+		return nil, err
+	}
+	defer c.SetReadDeadline(time.Time{})
+	return c.ReadMultiBuffer()
+}
+
+func (c *Conn) WriteMultiBuffer(bufferList buf.MultiBuffer) error {
+	defer buf.ReleaseMulti(bufferList)
+	if c.writer != nil {
+		bytesList := make([][]byte, len(bufferList))
+		for i, buffer := range bufferList {
+			bytesList[i] = buffer.Bytes()
+		}
+		return common.Error(bufio.WriteVectorised(c.writer, bytesList))
+	}
+	// Since this conn is only used by tun, we don't force buffer writes to merge.
+	for _, buffer := range bufferList {
+		_, err := c.Conn.Write(buffer.Bytes())
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+type PacketConn struct {
+	net.Conn
+	destination net.Destination
+}
+
+func (c *PacketConn) ReadMultiBuffer() (buf.MultiBuffer, error) {
+	buffer, err := buf.ReadBuffer(c.Conn)
+	if err != nil {
+		return nil, err
+	}
+	buffer.UDP = &c.destination
+	return buf.MultiBuffer{buffer}, nil
+}
+
+func (c *PacketConn) ReadMultiBufferTimeout(duration time.Duration) (buf.MultiBuffer, error) {
+	err := c.SetReadDeadline(time.Now().Add(duration))
+	if err != nil {
+		return nil, err
+	}
+	defer c.SetReadDeadline(time.Time{})
+	return c.ReadMultiBuffer()
+}
+
+func (c *PacketConn) WriteMultiBuffer(mb buf.MultiBuffer) error {
+	mb, err := buf.WriteMultiBuffer(c.Conn, mb)
+	buf.ReleaseMulti(mb)
+	return err
+}

common/task/task.go

@@ -38,6 +38,12 @@ func Run(ctx context.Context, tasks ...func() error) error {
 		}(task)
 	}
 
+	/*
+		if altctx := ctx.Value("altctx"); altctx != nil {
+			ctx = altctx.(context.Context)
+		}
+	*/
+
 	for i := 0; i < n; i++ {
 		select {
 		case err := <-done:
@@ -48,5 +54,11 @@ func Run(ctx context.Context, tasks ...func() error) error {
 		}
 	}
 
+	/*
+		if cancel := ctx.Value("cancel"); cancel != nil {
+			cancel.(context.CancelFunc)()
+		}
+	*/
+
 	return nil
 }

common/xudp/xudp.go

@@ -1,30 +1,79 @@
 package xudp
 
 import (
+	"context"
+	"crypto/rand"
+	"encoding/base64"
+	"fmt"
 	"io"
+	"os"
+	"strings"
 
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/protocol"
+	"github.com/xtls/xray-core/common/session"
+	"lukechampine.com/blake3"
 )
 
-var addrParser = protocol.NewAddressParser(
+var AddrParser = protocol.NewAddressParser(
 	protocol.AddressFamilyByte(byte(protocol.AddressTypeIPv4), net.AddressFamilyIPv4),
 	protocol.AddressFamilyByte(byte(protocol.AddressTypeDomain), net.AddressFamilyDomain),
 	protocol.AddressFamilyByte(byte(protocol.AddressTypeIPv6), net.AddressFamilyIPv6),
 	protocol.PortThenAddress(),
 )
 
-func NewPacketWriter(writer buf.Writer, dest net.Destination) *PacketWriter {
+var (
+	Show    bool
+	BaseKey []byte
+)
+
+const (
+	EnvShow    = "XRAY_XUDP_SHOW"
+	EnvBaseKey = "XRAY_XUDP_BASEKEY"
+)
+
+func init() {
+	if strings.ToLower(os.Getenv(EnvShow)) == "true" {
+		Show = true
+	}
+	if raw, found := os.LookupEnv(EnvBaseKey); found {
+		if BaseKey, _ = base64.RawURLEncoding.DecodeString(raw); len(BaseKey) == 32 {
+			return
+		}
+		panic(EnvBaseKey + ": invalid value: " + raw)
+	}
+	rand.Read(BaseKey)
+}
+
+func GetGlobalID(ctx context.Context) (globalID [8]byte) {
+	if cone := ctx.Value("cone"); cone == nil || !cone.(bool) { // cone is nil only in some unit tests
+		return
+	}
+	if inbound := session.InboundFromContext(ctx); inbound != nil && inbound.Source.Network == net.Network_UDP &&
+		(inbound.Name == "dokodemo-door" || inbound.Name == "socks" || inbound.Name == "shadowsocks") {
+		h := blake3.New(8, BaseKey)
+		h.Write([]byte(inbound.Source.String()))
+		copy(globalID[:], h.Sum(nil))
+		if Show {
+			fmt.Printf("XUDP inbound.Source.String(): %v\tglobalID: %v\n", inbound.Source.String(), globalID)
+		}
+	}
+	return
+}
+
+func NewPacketWriter(writer buf.Writer, dest net.Destination, globalID [8]byte) *PacketWriter {
 	return &PacketWriter{
-		Writer: writer,
-		Dest:   dest,
+		Writer:   writer,
+		Dest:     dest,
+		GlobalID: globalID,
 	}
 }
 
 type PacketWriter struct {
-	Writer buf.Writer
-	Dest   net.Destination
+	Writer   buf.Writer
+	Dest     net.Destination
+	GlobalID [8]byte
 }
 
 func (w *PacketWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
@@ -37,19 +86,22 @@ func (w *PacketWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
 		}
 
 		eb := buf.New()
-		eb.Write([]byte{0, 0, 0, 0})
+		eb.Write([]byte{0, 0, 0, 0}) // Meta data length; Mux Session ID
 		if w.Dest.Network == net.Network_UDP {
 			eb.WriteByte(1) // New
 			eb.WriteByte(1) // Opt
 			eb.WriteByte(2) // UDP
-			addrParser.WriteAddressPort(eb, w.Dest.Address, w.Dest.Port)
+			AddrParser.WriteAddressPort(eb, w.Dest.Address, w.Dest.Port)
+			if b.UDP != nil { // make sure it's user's proxy request
+				eb.Write(w.GlobalID[:]) // no need to check whether it's empty
+			}
 			w.Dest.Network = net.Network_Unknown
 		} else {
 			eb.WriteByte(2) // Keep
-			eb.WriteByte(1)
+			eb.WriteByte(1) // Opt
 			if b.UDP != nil {
-				eb.WriteByte(2)
-				addrParser.WriteAddressPort(eb, b.UDP.Address, b.UDP.Port)
+				eb.WriteByte(2) // UDP
+				AddrParser.WriteAddressPort(eb, b.UDP.Address, b.UDP.Port)
 			}
 		}
 		l := eb.Len() - 2
@@ -96,9 +148,10 @@ func (r *PacketReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
 		discard := false
 		switch b.Byte(2) {
 		case 2:
-			if l != 4 {
+			if l > 4 && b.Byte(4) == 2 { // MUST check the flag first
 				b.Advance(5)
-				addr, port, err := addrParser.ReadAddressPort(nil, b)
+				// b.Clear() will be called automatically if all data had been read.
+				addr, port, err := AddrParser.ReadAddressPort(nil, b)
 				if err != nil {
 					b.Release()
 					return nil, err
@@ -115,6 +168,7 @@ func (r *PacketReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
 			b.Release()
 			return nil, io.EOF
 		}
+		b.Clear() // in case there is padding (empty bytes) attached
 		if b.Byte(3) == 1 {
 			if _, err := io.ReadFull(r.Reader, r.cache); err != nil {
 				b.Release()
@@ -122,7 +176,6 @@ func (r *PacketReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
 			}
 			length := int32(r.cache[0])<<8 | int32(r.cache[1])
 			if length > 0 {
-				b.Clear()
 				if _, err := b.ReadFullFrom(r.Reader, length); err != nil {
 					b.Release()
 					return nil, err

common/xudp/xudp_test.go

@@ -0,0 +1,36 @@
+package xudp
+
+import (
+	"testing"
+
+	"github.com/xtls/xray-core/common"
+	"github.com/xtls/xray-core/common/buf"
+	"github.com/xtls/xray-core/common/net"
+)
+
+func TestXudpReadWrite(t *testing.T) {
+	addr, _ := net.ParseDestination("tcp:127.0.0.1:1345")
+	mb := make(buf.MultiBuffer, 0, 16)
+	m := buf.MultiBufferContainer{
+		MultiBuffer: mb,
+	}
+	var arr [8]byte
+	writer := NewPacketWriter(&m, addr, arr)
+
+	source := make(buf.MultiBuffer, 0, 16)
+	b := buf.New()
+	b.WriteByte('a')
+	b.UDP = &addr
+	source = append(source, b)
+	writer.WriteMultiBuffer(source)
+
+	reader := NewPacketReader(&m)
+	dest, err := reader.ReadMultiBuffer()
+	common.Must(err)
+	if dest[0].Byte(0) != 'a' {
+		t.Error("failed to parse xudp buffer")
+	}
+	if dest[0].UDP.Port != 1345 {
+		t.Error("failed to parse xudp buffer")
+	}
+}

core/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: core/config.proto
 
 package core

core/core.go

@@ -12,13 +12,19 @@ package core
 //go:generate go run github.com/xtls/xray-core/common/errors/errorgen
 
 import (
+	"fmt"
 	"runtime"
 
 	"github.com/xtls/xray-core/common/serial"
 )
 
 var (
-	version  = "1.7.2"
+	Version_x byte = 1
+	Version_y byte = 8
+	Version_z byte = 1
+)
+
+var (
 	build    = "Custom"
 	codename = "Xray, Penetrates Everything."
 	intro    = "A unified platform for anti-censorship."
@@ -27,7 +33,7 @@ var (
 // Version returns Xray's version as a string, in the form of "x.y.z" where x, y and z are numbers.
 // ".z" part may be omitted in regular releases.
 func Version() string {
-	return version
+	return fmt.Sprintf("%v.%v.%v", Version_x, Version_y, Version_z)
 }
 
 // VersionStatement returns a list of strings representing the full version info.

go.mod

@@ -1,61 +1,63 @@
 module github.com/xtls/xray-core
 
-go 1.19
+go 1.20
 
 require (
-	github.com/ghodss/yaml v1.0.1-0.20190212211648-25d852aebe32
+	github.com/ghodss/yaml v1.0.1-0.20220118164431-d8423dcdf344
 	github.com/golang/mock v1.6.0
-	github.com/golang/protobuf v1.5.2
+	github.com/golang/protobuf v1.5.3
 	github.com/google/go-cmp v0.5.9
 	github.com/gorilla/websocket v1.5.0
-	github.com/lucas-clemente/quic-go v0.31.1
-	github.com/marten-seemann/qtls-go1-18 v0.1.4
-	github.com/miekg/dns v1.1.50
+	github.com/miekg/dns v1.1.53
 	github.com/pelletier/go-toml v1.9.5
-	github.com/pires/go-proxyproto v0.6.2
-	github.com/refraction-networking/utls v1.2.0
-	github.com/sagernet/sing v0.1.2
-	github.com/sagernet/sing-shadowsocks v0.1.0
+	github.com/pires/go-proxyproto v0.7.0
+	github.com/quic-go/quic-go v0.34.0
+	github.com/refraction-networking/utls v1.3.2
+	github.com/sagernet/sing v0.2.5-0.20230423085534-0902e6216207
+	github.com/sagernet/sing-mux v0.0.0-20230425101127-4e8851eb1a2c
+	github.com/sagernet/sing-shadowsocks v0.2.1
 	github.com/sagernet/wireguard-go v0.0.0-20221116151939-c99467f53f2c
 	github.com/seiflotfy/cuckoofilter v0.0.0-20220411075957-e3b120b3f5fb
-	github.com/stretchr/testify v1.8.1
+	github.com/stretchr/testify v1.8.2
 	github.com/v2fly/ss-bloomring v0.0.0-20210312155135-28617310f63e
-	github.com/xtls/go v0.0.0-20220914232946-0441cf4cf837
-	go.starlark.net v0.0.0-20230105143730-d7da88764354
-	golang.org/x/crypto v0.5.0
-	golang.org/x/net v0.5.0
+	github.com/xtls/reality v0.0.0-20230331223127-176a94313eda
+	go.starlark.net v0.0.0-20230302034142-4b1e35fe2254
+	golang.org/x/crypto v0.8.0
+	golang.org/x/net v0.9.0
 	golang.org/x/sync v0.1.0
-	golang.org/x/sys v0.4.0
-	google.golang.org/grpc v1.51.0
-	google.golang.org/protobuf v1.28.1
+	golang.org/x/sys v0.7.0
+	google.golang.org/grpc v1.54.0
+	google.golang.org/protobuf v1.30.0
 	gvisor.dev/gvisor v0.0.0-20220901235040-6ca97ef2ce1c
 	h12.io/socks v1.0.3
+	lukechampine.com/blake3 v1.1.7
 )
 
 require (
-	github.com/andybalholm/brotli v1.0.4 // indirect
+	github.com/andybalholm/brotli v1.0.5 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/dgryski/go-metro v0.0.0-20211217172704-adc40b04c140 // indirect
 	github.com/francoispqt/gojay v1.2.13 // indirect
-	github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0 // indirect
+	github.com/gaukas/godicttls v0.0.3 // indirect
+	github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 // indirect
 	github.com/google/btree v1.1.2 // indirect
-	github.com/google/pprof v0.0.0-20221219190121-3cb0bae90811 // indirect
-	github.com/klauspost/compress v1.15.14 // indirect
-	github.com/klauspost/cpuid/v2 v2.2.3 // indirect
-	github.com/kr/pretty v0.3.1 // indirect
-	github.com/marten-seemann/qtls-go1-19 v0.1.2 // indirect
-	github.com/onsi/ginkgo/v2 v2.6.1 // indirect
+	github.com/google/pprof v0.0.0-20230406165453-00490a63f317 // indirect
+	github.com/hashicorp/yamux v0.1.1 // indirect
+	github.com/klauspost/compress v1.16.5 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.4 // indirect
+	github.com/onsi/ginkgo/v2 v2.9.2 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/quic-go/qtls-go1-19 v0.3.2 // indirect
+	github.com/quic-go/qtls-go1-20 v0.2.2 // indirect
 	github.com/riobard/go-bloom v0.0.0-20200614022211-cdc8013cb5b3 // indirect
+	github.com/sagernet/smux v0.0.0-20230312102458-337ec2a5af37 // indirect
 	go.uber.org/atomic v1.10.0 // indirect
-	golang.org/x/exp v0.0.0-20230105202349-8879d0199aa3 // indirect
-	golang.org/x/mod v0.7.0 // indirect
-	golang.org/x/text v0.6.0 // indirect
+	golang.org/x/exp v0.0.0-20230321023759-10a507213a29 // indirect
+	golang.org/x/mod v0.10.0 // indirect
+	golang.org/x/text v0.9.0 // indirect
 	golang.org/x/time v0.3.0 // indirect
-	golang.org/x/tools v0.5.0 // indirect
-	google.golang.org/genproto v0.0.0-20230106154932-a12b697841d9 // indirect
-	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
+	golang.org/x/tools v0.8.0 // indirect
+	google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
-	lukechampine.com/blake3 v1.1.7 // indirect
 )

go.sum

@@ -8,8 +8,8 @@ dmitri.shuralyov.com/service/change v0.0.0-20181023043359-a85b471d5412/go.mod h1
 dmitri.shuralyov.com/state v0.0.0-20180228185332-28bcc343414c/go.mod h1:0PRwlb0D6DFvNNtx+9ybjezNCa8XF0xaYcETyp6rHWU=
 git.apache.org/thrift.git v0.0.0-20180902110319-2566ecd5d999/go.mod h1:fPE2ZNJGynbRyZ4dJvy6G277gSllfV2HJqblrnkyeyg=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/andybalholm/brotli v1.0.4 h1:V7DdXeJtZscaqfNuAdSRuRFzuiKlHSC/Zh3zl9qY3JY=
-github.com/andybalholm/brotli v1.0.4/go.mod h1:fO7iG3H7G2nSZ7m0zPUDn85XEX2GTukHGRSepvi9Eig=
+github.com/andybalholm/brotli v1.0.5 h1:8uQZIdzKmjc/iuPu7O2ioW48L81FgatrcpfFmiq/cCs=
+github.com/andybalholm/brotli v1.0.5/go.mod h1:fO7iG3H7G2nSZ7m0zPUDn85XEX2GTukHGRSepvi9Eig=
 github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239/go.mod h1:2FmKhYUyUczH0OGQWaF5ceTx0UBShxjsH6f8oGKYe2c=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/bradfitz/go-smtpd v0.0.0-20170404230938-deb6d6237625/go.mod h1:HYsPBTaaSFSlLx/70C2HPIMNZpVV8+vt/A+FMnYP11g=
@@ -20,7 +20,6 @@ github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5P
 github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/coreos/go-systemd v0.0.0-20181012123002-c6f51f82210d/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
-github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -34,14 +33,16 @@ github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568/go.mod h1:xEzjJPgXI
 github.com/francoispqt/gojay v1.2.13 h1:d2m3sFjloqoIUQU3TsHBgj6qg/BVGlTBeHDUmyJnXKk=
 github.com/francoispqt/gojay v1.2.13/go.mod h1:ehT5mTG4ua4581f1++1WLG0vPdaA9HaiDsoyrBGkyDY=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
+github.com/gaukas/godicttls v0.0.3 h1:YNDIf0d9adcxOijiLrEzpfZGAkNwLRzPaG6OjU7EITk=
+github.com/gaukas/godicttls v0.0.3/go.mod h1:l6EenT4TLWgTdwslVb4sEMOCf7Bv0JAK67deKr9/NCI=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
-github.com/ghodss/yaml v1.0.1-0.20190212211648-25d852aebe32 h1:Mn26/9ZMNWSw9C9ERFA1PUxfmGpolnw2v0bKOREu5ew=
-github.com/ghodss/yaml v1.0.1-0.20190212211648-25d852aebe32/go.mod h1:GIjDIg/heH5DOkXY3YJ/wNhfHsQHoXGjl8G8amsYQ1I=
+github.com/ghodss/yaml v1.0.1-0.20220118164431-d8423dcdf344 h1:Arcl6UOIS/kgO2nW3A65HN+7CMjSDP/gofXL4CZt1V4=
+github.com/ghodss/yaml v1.0.1-0.20220118164431-d8423dcdf344/go.mod h1:GIjDIg/heH5DOkXY3YJ/wNhfHsQHoXGjl8G8amsYQ1I=
 github.com/gliderlabs/ssh v0.1.1/go.mod h1:U7qILu1NlMHj9FlMhZLlkCdDnU1DBEAqr0aevW3Awn0=
 github.com/go-errors/errors v1.0.1/go.mod h1:f4zRHt4oKfwPJE5k8C9vpYG+aDHdBFUsgrm6/TyX73Q=
 github.com/go-logr/logr v1.2.3 h1:2DntVwHkVopvECVRSlL5PSo9eG+cAkDCuckLubN+rq0=
-github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0 h1:p104kn46Q8WdvHunIJ9dAyjPVtrBPhSr3KT2yUst43I=
-github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0/go.mod h1:fyg7847qk6SyHyPtNmDHnmrv/HOrqktSC+C9fM+CJOE=
+github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 h1:tfuBGBXKqDEevZMzYi5KSi8KkcZtzBcTgAUUtapy0OI=
+github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572/go.mod h1:9Pwr4B2jHnOSGXyyzV8ROjYa2ojvAY6HCGYYfMoC3Ls=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/lint v0.0.0-20180702182130-06c8688daad7/go.mod h1:tluoj9z5200jBnyusfRPU2LqT6J+DAorxEvtC7LHB+E=
@@ -59,8 +60,8 @@ github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:W
 github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
 github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QDs8UjoX8=
 github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
-github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
-github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
+github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg=
+github.com/golang/protobuf v1.5.3/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
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 github.com/v2fly/ss-bloomring v0.0.0-20210312155135-28617310f63e/go.mod h1:5t19P9LBIrNamL6AcMQOncg/r10y3Pc01AbHeMhwlpU=
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-github.com/xtls/go v0.0.0-20220914232946-0441cf4cf837/go.mod h1:YJTRELIWrGxR1s8xcEBgxcxBfwQfMGjdvNLTjN9XFgY=
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 github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 go.opencensus.io v0.18.0/go.mod h1:vKdFvxhtzZ9onBp9VKHK8z/sRpBMnKAsufL7wlDrCOA=
-go.starlark.net v0.0.0-20221205180719-3fd0dac74452 h1:JZtNuL6LPB+scU5yaQ6hqRlJFRiddZm2FwRt2AQqtHA=
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 go.uber.org/atomic v1.10.0 h1:9qC72Qh0+3MqyJbAn8YU5xVq1frD8bn3JtD2oXtafVQ=
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@@ -216,20 +211,18 @@ golang.org/x/crypto v0.0.0-20181030102418-4d3f4d9ffa16/go.mod h1:6SG95UA2DQfeDnf
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20190313024323-a1f597ede03a/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
-golang.org/x/crypto v0.5.0 h1:U/0M97KRkSFvyD/3FSmdP5W5swImpNgle/EHFhOsQPE=
-golang.org/x/crypto v0.5.0/go.mod h1:NK/OQwhpMQP3MwtdjgLlYHnH9ebylxKWv3e0fK+mkQU=
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+golang.org/x/crypto v0.8.0/go.mod h1:mRqEX+O9/h5TFCrQhkgjo2yKi0yYA+9ecGkdQoHrywE=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
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 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
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 golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
-golang.org/x/mod v0.7.0 h1:LapD9S96VoQRhi/GrNTqeBJFrUjs5UHCAtTlgwA5oZA=
-golang.org/x/mod v0.7.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
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 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
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@@ -242,9 +235,8 @@ golang.org/x/net v0.0.0-20190313220215-9f648a60d977/go.mod h1:t9HGtf8HONx5eT2rtn
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
-golang.org/x/net v0.0.0-20210726213435-c6fcb2dbf985/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
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-golang.org/x/net v0.5.0/go.mod h1:DivGGAXEgPSlEBzxGzZI+ZLohi+xUj054jfeKui00ws=
+golang.org/x/net v0.9.0 h1:aWJ/m6xSmxWBx+V0XRHTlrYrPG56jKsLdTFmsSsCzOM=
+golang.org/x/net v0.9.0/go.mod h1:d48xBJpPfHeWQsugry2m+kC02ZBRGRgulfHnEXEuWns=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20181017192945-9dcd33a902f4/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20181203162652-d668ce993890/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
@@ -266,22 +258,20 @@ golang.org/x/sys v0.0.0-20190316082340-a2f829d7f35f/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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@@ -295,11 +285,8 @@ golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3
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-golang.org/x/tools v0.5.0 h1:+bSpV5HIeWkuvgaMfI3UmKRThoTA5ODJTUd8T17NO+4=
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@@ -318,18 +305,16 @@ google.golang.org/genproto v0.0.0-20181202183823-bd91e49a0898/go.mod h1:7Ep/1NZk
 google.golang.org/genproto v0.0.0-20190306203927-b5d61aea6440/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
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-google.golang.org/genproto v0.0.0-20221207170731-23e4bf6bdc37/go.mod h1:RGgjbofJ8xD9Sq1VVhDM1Vok1vRONV+rg+CjzG4SZKM=
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-google.golang.org/grpc v1.51.0 h1:E1eGv1FTqoLIdnBCZufiSHgKjlqG6fKFf6pPWtMTh8U=
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 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@@ -340,11 +325,10 @@ google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpAD
 google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
-google.golang.org/protobuf v1.28.1 h1:d0NfwRgPtno5B1Wa6L2DAG+KivqkdutMf1UhdNx175w=
-google.golang.org/protobuf v1.28.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
+google.golang.org/protobuf v1.30.0 h1:kPPoIgf3TsEvrm0PFe15JQ+570QVxYzEvvHqChK+cng=
+google.golang.org/protobuf v1.30.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
-gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
+gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
 gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

infra/conf/common.go

@@ -45,6 +45,9 @@ func (v *Address) UnmarshalJSON(data []byte) error {
 	if err := json.Unmarshal(data, &rawStr); err != nil {
 		return newError("invalid address: ", string(data)).Base(err)
 	}
+	if strings.HasPrefix(rawStr, "env:") {
+		rawStr = os.Getenv(rawStr[4:])
+	}
 	v.Address = net.ParseAddress(rawStr)
 
 	return nil
@@ -115,8 +118,7 @@ func parseIntPort(data []byte) (net.Port, error) {
 
 func parseStringPort(s string) (net.Port, net.Port, error) {
 	if strings.HasPrefix(s, "env:") {
-		s = s[4:]
-		s = os.Getenv(s)
+		s = os.Getenv(s[4:])
 	}
 
 	pair := strings.SplitN(s, "-", 2)

infra/conf/grpc.go

@@ -12,6 +12,7 @@ type GRPCConfig struct {
 	HealthCheckTimeout  int32  `json:"health_check_timeout"`
 	PermitWithoutStream bool   `json:"permit_without_stream"`
 	InitialWindowsSize  int32  `json:"initial_windows_size"`
+	UserAgent           string `json:"user_agent"`
 }
 
 func (g *GRPCConfig) Build() (proto.Message, error) {
@@ -33,5 +34,6 @@ func (g *GRPCConfig) Build() (proto.Message, error) {
 		HealthCheckTimeout:  g.HealthCheckTimeout,
 		PermitWithoutStream: g.PermitWithoutStream,
 		InitialWindowsSize:  g.InitialWindowsSize,
+		UserAgent:           g.UserAgent,
 	}, nil
 }

infra/conf/shadowsocks.go

@@ -155,14 +155,15 @@ func buildShadowsocks2022(v *ShadowsocksServerConfig) (proto.Message, error) {
 }
 
 type ShadowsocksServerTarget struct {
-	Address  *Address `json:"address"`
-	Port     uint16   `json:"port"`
-	Cipher   string   `json:"method"`
-	Password string   `json:"password"`
-	Email    string   `json:"email"`
-	Level    byte     `json:"level"`
-	IVCheck  bool     `json:"ivCheck"`
-	UoT      bool     `json:"uot"`
+	Address    *Address `json:"address"`
+	Port       uint16   `json:"port"`
+	Cipher     string   `json:"method"`
+	Password   string   `json:"password"`
+	Email      string   `json:"email"`
+	Level      byte     `json:"level"`
+	IVCheck    bool     `json:"ivCheck"`
+	UoT        bool     `json:"uot"`
+	UoTVersion int      `json:"uotVersion"`
 }
 
 type ShadowsocksClientConfig struct {
@@ -193,6 +194,7 @@ func (v *ShadowsocksClientConfig) Build() (proto.Message, error) {
 			config.Method = server.Cipher
 			config.Key = server.Password
 			config.UdpOverTcp = server.UoT
+			config.UdpOverTcpVersion = uint32(server.UoTVersion)
 			return config, nil
 		}
 	}

infra/conf/transport_authenticators.go

@@ -4,6 +4,7 @@ import (
 	"sort"
 
 	"github.com/golang/protobuf/proto"
+	"github.com/xtls/xray-core/transport/internet/headers/dns"
 	"github.com/xtls/xray-core/transport/internet/headers/http"
 	"github.com/xtls/xray-core/transport/internet/headers/noop"
 	"github.com/xtls/xray-core/transport/internet/headers/srtp"
@@ -49,6 +50,19 @@ func (WireguardAuthenticator) Build() (proto.Message, error) {
 	return new(wireguard.WireguardConfig), nil
 }
 
+type DNSAuthenticator struct {
+	Domain string `json:"domain"`
+}
+
+func (v *DNSAuthenticator) Build() (proto.Message, error) {
+	config := new(dns.Config)
+	config.Domain = "www.baidu.com"
+	if len(v.Domain) > 0 {
+		config.Domain = v.Domain
+	}
+	return config, nil
+}
+
 type DTLSAuthenticator struct{}
 
 func (DTLSAuthenticator) Build() (proto.Message, error) {

infra/conf/transport_internet.go

@@ -2,13 +2,17 @@ package conf
 
 import (
 	"encoding/base64"
+	"encoding/hex"
 	"encoding/json"
 	"math"
 	"net/url"
+	"runtime"
 	"strconv"
 	"strings"
+	"syscall"
 
 	"github.com/golang/protobuf/proto"
+	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/platform/filesystem"
 	"github.com/xtls/xray-core/common/protocol"
 	"github.com/xtls/xray-core/common/serial"
@@ -18,10 +22,10 @@ import (
 	"github.com/xtls/xray-core/transport/internet/http"
 	"github.com/xtls/xray-core/transport/internet/kcp"
 	"github.com/xtls/xray-core/transport/internet/quic"
+	"github.com/xtls/xray-core/transport/internet/reality"
 	"github.com/xtls/xray-core/transport/internet/tcp"
 	"github.com/xtls/xray-core/transport/internet/tls"
 	"github.com/xtls/xray-core/transport/internet/websocket"
-	"github.com/xtls/xray-core/transport/internet/xtls"
 )
 
 var (
@@ -32,6 +36,7 @@ var (
 		"wechat-video": func() interface{} { return new(WechatVideoAuthenticator) },
 		"dtls":         func() interface{} { return new(DTLSAuthenticator) },
 		"wireguard":    func() interface{} { return new(WireguardAuthenticator) },
+		"dns":          func() interface{} { return new(DNSAuthenticator) },
 	}, "type", "")
 
 	tcpHeaderLoader = NewJSONConfigLoader(ConfigCreatorCache{
@@ -338,19 +343,20 @@ func (c *TLSCertConfig) Build() (*tls.Certificate, error) {
 }
 
 type TLSConfig struct {
-	Insecure                         bool             `json:"allowInsecure"`
-	Certs                            []*TLSCertConfig `json:"certificates"`
-	ServerName                       string           `json:"serverName"`
-	ALPN                             *StringList      `json:"alpn"`
-	EnableSessionResumption          bool             `json:"enableSessionResumption"`
-	DisableSystemRoot                bool             `json:"disableSystemRoot"`
-	MinVersion                       string           `json:"minVersion"`
-	MaxVersion                       string           `json:"maxVersion"`
-	CipherSuites                     string           `json:"cipherSuites"`
-	PreferServerCipherSuites         bool             `json:"preferServerCipherSuites"`
-	Fingerprint                      string           `json:"fingerprint"`
-	RejectUnknownSNI                 bool             `json:"rejectUnknownSni"`
-	PinnedPeerCertificateChainSha256 *[]string        `json:"pinnedPeerCertificateChainSha256"`
+	Insecure                             bool             `json:"allowInsecure"`
+	Certs                                []*TLSCertConfig `json:"certificates"`
+	ServerName                           string           `json:"serverName"`
+	ALPN                                 *StringList      `json:"alpn"`
+	EnableSessionResumption              bool             `json:"enableSessionResumption"`
+	DisableSystemRoot                    bool             `json:"disableSystemRoot"`
+	MinVersion                           string           `json:"minVersion"`
+	MaxVersion                           string           `json:"maxVersion"`
+	CipherSuites                         string           `json:"cipherSuites"`
+	PreferServerCipherSuites             bool             `json:"preferServerCipherSuites"`
+	Fingerprint                          string           `json:"fingerprint"`
+	RejectUnknownSNI                     bool             `json:"rejectUnknownSni"`
+	PinnedPeerCertificateChainSha256     *[]string        `json:"pinnedPeerCertificateChainSha256"`
+	PinnedPeerCertificatePublicKeySha256 *[]string        `json:"pinnedPeerCertificatePublicKeySha256"`
 }
 
 // Build implements Buildable.
@@ -379,6 +385,9 @@ func (c *TLSConfig) Build() (proto.Message, error) {
 	config.CipherSuites = c.CipherSuites
 	config.PreferServerCipherSuites = c.PreferServerCipherSuites
 	config.Fingerprint = strings.ToLower(c.Fingerprint)
+	if config.Fingerprint != "" && tls.GetFingerprint(config.Fingerprint) == nil {
+		return nil, newError(`unknown fingerprint: `, config.Fingerprint)
+	}
 	config.RejectUnknownSni = c.RejectUnknownSNI
 
 	if c.PinnedPeerCertificateChainSha256 != nil {
@@ -392,111 +401,184 @@ func (c *TLSConfig) Build() (proto.Message, error) {
 		}
 	}
 
+	if c.PinnedPeerCertificatePublicKeySha256 != nil {
+		config.PinnedPeerCertificatePublicKeySha256 = [][]byte{}
+		for _, v := range *c.PinnedPeerCertificatePublicKeySha256 {
+			hashValue, err := base64.StdEncoding.DecodeString(v)
+			if err != nil {
+				return nil, err
+			}
+			config.PinnedPeerCertificatePublicKeySha256 = append(config.PinnedPeerCertificatePublicKeySha256, hashValue)
+		}
+	}
+
 	return config, nil
 }
 
-type XTLSCertConfig struct {
-	CertFile       string   `json:"certificateFile"`
-	CertStr        []string `json:"certificate"`
-	KeyFile        string   `json:"keyFile"`
-	KeyStr         []string `json:"key"`
-	Usage          string   `json:"usage"`
-	OcspStapling   uint64   `json:"ocspStapling"`
-	OneTimeLoading bool     `json:"oneTimeLoading"`
+type REALITYConfig struct {
+	Show         bool            `json:"show"`
+	Dest         json.RawMessage `json:"dest"`
+	Type         string          `json:"type"`
+	Xver         uint64          `json:"xver"`
+	ServerNames  []string        `json:"serverNames"`
+	PrivateKey   string          `json:"privateKey"`
+	MinClientVer string          `json:"minClientVer"`
+	MaxClientVer string          `json:"maxClientVer"`
+	MaxTimeDiff  uint64          `json:"maxTimeDiff"`
+	ShortIds     []string        `json:"shortIds"`
+
+	Fingerprint string `json:"fingerprint"`
+	ServerName  string `json:"serverName"`
+	PublicKey   string `json:"publicKey"`
+	ShortId     string `json:"shortId"`
+	SpiderX     string `json:"spiderX"`
 }
 
-// Build implements Buildable.
-func (c *XTLSCertConfig) Build() (*xtls.Certificate, error) {
-	certificate := new(xtls.Certificate)
-	cert, err := readFileOrString(c.CertFile, c.CertStr)
-	if err != nil {
-		return nil, newError("failed to parse certificate").Base(err)
-	}
-	certificate.Certificate = cert
-	certificate.CertificatePath = c.CertFile
-
-	if len(c.KeyFile) > 0 || len(c.KeyStr) > 0 {
-		key, err := readFileOrString(c.KeyFile, c.KeyStr)
-		if err != nil {
-			return nil, newError("failed to parse key").Base(err)
+func (c *REALITYConfig) Build() (proto.Message, error) {
+	config := new(reality.Config)
+	config.Show = c.Show
+	var err error
+	if c.Dest != nil {
+		var i uint16
+		var s string
+		if err = json.Unmarshal(c.Dest, &i); err == nil {
+			s = strconv.Itoa(int(i))
+		} else {
+			_ = json.Unmarshal(c.Dest, &s)
 		}
-		certificate.Key = key
-		certificate.KeyPath = c.KeyFile
-	}
-
-	switch strings.ToLower(c.Usage) {
-	case "encipherment":
-		certificate.Usage = xtls.Certificate_ENCIPHERMENT
-	case "verify":
-		certificate.Usage = xtls.Certificate_AUTHORITY_VERIFY
-	case "issue":
-		certificate.Usage = xtls.Certificate_AUTHORITY_ISSUE
-	default:
-		certificate.Usage = xtls.Certificate_ENCIPHERMENT
-	}
-	if certificate.KeyPath == "" && certificate.CertificatePath == "" {
-		certificate.OneTimeLoading = true
-	} else {
-		certificate.OneTimeLoading = c.OneTimeLoading
-	}
-	certificate.OcspStapling = c.OcspStapling
-
-	return certificate, nil
-}
-
-type XTLSConfig struct {
-	Insecure                         bool              `json:"allowInsecure"`
-	Certs                            []*XTLSCertConfig `json:"certificates"`
-	ServerName                       string            `json:"serverName"`
-	ALPN                             *StringList       `json:"alpn"`
-	EnableSessionResumption          bool              `json:"enableSessionResumption"`
-	DisableSystemRoot                bool              `json:"disableSystemRoot"`
-	MinVersion                       string            `json:"minVersion"`
-	MaxVersion                       string            `json:"maxVersion"`
-	CipherSuites                     string            `json:"cipherSuites"`
-	PreferServerCipherSuites         bool              `json:"preferServerCipherSuites"`
-	RejectUnknownSNI                 bool              `json:"rejectUnknownSni"`
-	PinnedPeerCertificateChainSha256 *[]string         `json:"pinnedPeerCertificateChainSha256"`
-}
-
-// Build implements Buildable.
-func (c *XTLSConfig) Build() (proto.Message, error) {
-	config := new(xtls.Config)
-	config.Certificate = make([]*xtls.Certificate, len(c.Certs))
-	for idx, certConf := range c.Certs {
-		cert, err := certConf.Build()
-		if err != nil {
-			return nil, err
-		}
-		config.Certificate[idx] = cert
-	}
-	serverName := c.ServerName
-	config.AllowInsecure = c.Insecure
-	if len(c.ServerName) > 0 {
-		config.ServerName = serverName
-	}
-	if c.ALPN != nil && len(*c.ALPN) > 0 {
-		config.NextProtocol = []string(*c.ALPN)
-	}
-	config.EnableSessionResumption = c.EnableSessionResumption
-	config.DisableSystemRoot = c.DisableSystemRoot
-	config.MinVersion = c.MinVersion
-	config.MaxVersion = c.MaxVersion
-	config.CipherSuites = c.CipherSuites
-	config.PreferServerCipherSuites = c.PreferServerCipherSuites
-	config.RejectUnknownSni = c.RejectUnknownSNI
-
-	if c.PinnedPeerCertificateChainSha256 != nil {
-		config.PinnedPeerCertificateChainSha256 = [][]byte{}
-		for _, v := range *c.PinnedPeerCertificateChainSha256 {
-			hashValue, err := base64.StdEncoding.DecodeString(v)
-			if err != nil {
-				return nil, err
+		if c.Type == "" && s != "" {
+			switch s[0] {
+			case '@', '/':
+				c.Type = "unix"
+				if s[0] == '@' && len(s) > 1 && s[1] == '@' && (runtime.GOOS == "linux" || runtime.GOOS == "android") {
+					fullAddr := make([]byte, len(syscall.RawSockaddrUnix{}.Path)) // may need padding to work with haproxy
+					copy(fullAddr, s[1:])
+					s = string(fullAddr)
+				}
+			default:
+				if _, err = strconv.Atoi(s); err == nil {
+					s = "127.0.0.1:" + s
+				}
+				if _, _, err = net.SplitHostPort(s); err == nil {
+					c.Type = "tcp"
+				}
 			}
-			config.PinnedPeerCertificateChainSha256 = append(config.PinnedPeerCertificateChainSha256, hashValue)
 		}
+		if c.Type == "" {
+			return nil, newError(`please fill in a valid value for "dest"`)
+		}
+		if c.Xver > 2 {
+			return nil, newError(`invalid PROXY protocol version, "xver" only accepts 0, 1, 2`)
+		}
+		if len(c.ServerNames) == 0 {
+			return nil, newError(`empty "serverNames"`)
+		}
+		if c.PrivateKey == "" {
+			return nil, newError(`empty "privateKey"`)
+		}
+		if config.PrivateKey, err = base64.RawURLEncoding.DecodeString(c.PrivateKey); err != nil || len(config.PrivateKey) != 32 {
+			return nil, newError(`invalid "privateKey": `, c.PrivateKey)
+		}
+		if c.MinClientVer != "" {
+			config.MinClientVer = make([]byte, 3)
+			var u uint64
+			for i, s := range strings.Split(c.MinClientVer, ".") {
+				if i == 3 {
+					return nil, newError(`invalid "minClientVer": `, c.MinClientVer)
+				}
+				if u, err = strconv.ParseUint(s, 10, 8); err != nil {
+					return nil, newError(`"minClientVer[`, i, `]" should be lesser than 256`)
+				} else {
+					config.MinClientVer[i] = byte(u)
+				}
+			}
+		}
+		if c.MaxClientVer != "" {
+			config.MaxClientVer = make([]byte, 3)
+			var u uint64
+			for i, s := range strings.Split(c.MaxClientVer, ".") {
+				if i == 3 {
+					return nil, newError(`invalid "maxClientVer": `, c.MaxClientVer)
+				}
+				if u, err = strconv.ParseUint(s, 10, 8); err != nil {
+					return nil, newError(`"maxClientVer[`, i, `]" should be lesser than 256`)
+				} else {
+					config.MaxClientVer[i] = byte(u)
+				}
+			}
+		}
+		if len(c.ShortIds) == 0 {
+			return nil, newError(`empty "shortIds"`)
+		}
+		config.ShortIds = make([][]byte, len(c.ShortIds))
+		for i, s := range c.ShortIds {
+			config.ShortIds[i] = make([]byte, 8)
+			if _, err = hex.Decode(config.ShortIds[i], []byte(s)); err != nil {
+				return nil, newError(`invalid "shortIds[`, i, `]": `, s)
+			}
+		}
+		config.Dest = s
+		config.Type = c.Type
+		config.Xver = c.Xver
+		config.ServerNames = c.ServerNames
+		config.MaxTimeDiff = c.MaxTimeDiff
+	} else {
+		if c.Fingerprint == "" {
+			return nil, newError(`empty "fingerprint"`)
+		}
+		if config.Fingerprint = strings.ToLower(c.Fingerprint); tls.GetFingerprint(config.Fingerprint) == nil {
+			return nil, newError(`unknown "fingerprint": `, config.Fingerprint)
+		}
+		if config.Fingerprint == "hellogolang" {
+			return nil, newError(`invalid "fingerprint": `, config.Fingerprint)
+		}
+		if len(c.ServerNames) != 0 {
+			return nil, newError(`non-empty "serverNames", please use "serverName" instead`)
+		}
+		if c.PublicKey == "" {
+			return nil, newError(`empty "publicKey"`)
+		}
+		if config.PublicKey, err = base64.RawURLEncoding.DecodeString(c.PublicKey); err != nil || len(config.PublicKey) != 32 {
+			return nil, newError(`invalid "publicKey": `, c.PublicKey)
+		}
+		if len(c.ShortIds) != 0 {
+			return nil, newError(`non-empty "shortIds", please use "shortId" instead`)
+		}
+		config.ShortId = make([]byte, 8)
+		if _, err = hex.Decode(config.ShortId, []byte(c.ShortId)); err != nil {
+			return nil, newError(`invalid "shortId": `, c.ShortId)
+		}
+		if c.SpiderX == "" {
+			c.SpiderX = "/"
+		}
+		if c.SpiderX[0] != '/' {
+			return nil, newError(`invalid "spiderX": `, c.SpiderX)
+		}
+		config.SpiderY = make([]int64, 10)
+		u, _ := url.Parse(c.SpiderX)
+		q := u.Query()
+		parse := func(param string, index int) {
+			if q.Get(param) != "" {
+				s := strings.Split(q.Get(param), "-")
+				if len(s) == 1 {
+					config.SpiderY[index], _ = strconv.ParseInt(s[0], 10, 64)
+					config.SpiderY[index+1], _ = strconv.ParseInt(s[0], 10, 64)
+				} else {
+					config.SpiderY[index], _ = strconv.ParseInt(s[0], 10, 64)
+					config.SpiderY[index+1], _ = strconv.ParseInt(s[1], 10, 64)
+				}
+			}
+			q.Del(param)
+		}
+		parse("p", 0) // padding
+		parse("c", 2) // concurrency
+		parse("t", 4) // times
+		parse("i", 6) // interval
+		parse("r", 8) // return
+		u.RawQuery = q.Encode()
+		config.SpiderX = u.String()
+		config.ServerName = c.ServerName
 	}
-
 	return config, nil
 }
 
@@ -534,6 +616,10 @@ type SocketConfig struct {
 	TCPKeepAliveInterval int32       `json:"tcpKeepAliveInterval"`
 	TCPKeepAliveIdle     int32       `json:"tcpKeepAliveIdle"`
 	TCPCongestion        string      `json:"tcpCongestion"`
+	TCPWindowClamp       int32       `json:"tcpWindowClamp"`
+	TCPUserTimeout       int32       `json:"tcpUserTimeout"`
+	V6only               bool        `json:"v6only"`
+	Interface            string      `json:"interface"`
 }
 
 // Build implements Buildable.
@@ -583,23 +669,27 @@ func (c *SocketConfig) Build() (*internet.SocketConfig, error) {
 		TcpKeepAliveInterval: c.TCPKeepAliveInterval,
 		TcpKeepAliveIdle:     c.TCPKeepAliveIdle,
 		TcpCongestion:        c.TCPCongestion,
+		TcpWindowClamp:       c.TCPWindowClamp,
+		TcpUserTimeout:       c.TCPUserTimeout,
+		V6Only:               c.V6only,
+		Interface:            c.Interface,
 	}, nil
 }
 
 type StreamConfig struct {
-	Network        *TransportProtocol  `json:"network"`
-	Security       string              `json:"security"`
-	TLSSettings    *TLSConfig          `json:"tlsSettings"`
-	XTLSSettings   *XTLSConfig         `json:"xtlsSettings"`
-	TCPSettings    *TCPConfig          `json:"tcpSettings"`
-	KCPSettings    *KCPConfig          `json:"kcpSettings"`
-	WSSettings     *WebSocketConfig    `json:"wsSettings"`
-	HTTPSettings   *HTTPConfig         `json:"httpSettings"`
-	DSSettings     *DomainSocketConfig `json:"dsSettings"`
-	QUICSettings   *QUICConfig         `json:"quicSettings"`
-	SocketSettings *SocketConfig       `json:"sockopt"`
-	GRPCConfig     *GRPCConfig         `json:"grpcSettings"`
-	GUNConfig      *GRPCConfig         `json:"gunSettings"`
+	Network         *TransportProtocol  `json:"network"`
+	Security        string              `json:"security"`
+	TLSSettings     *TLSConfig          `json:"tlsSettings"`
+	REALITYSettings *REALITYConfig      `json:"realitySettings"`
+	TCPSettings     *TCPConfig          `json:"tcpSettings"`
+	KCPSettings     *KCPConfig          `json:"kcpSettings"`
+	WSSettings      *WebSocketConfig    `json:"wsSettings"`
+	HTTPSettings    *HTTPConfig         `json:"httpSettings"`
+	DSSettings      *DomainSocketConfig `json:"dsSettings"`
+	QUICSettings    *QUICConfig         `json:"quicSettings"`
+	SocketSettings  *SocketConfig       `json:"sockopt"`
+	GRPCConfig      *GRPCConfig         `json:"grpcSettings"`
+	GUNConfig       *GRPCConfig         `json:"gunSettings"`
 }
 
 // Build implements Buildable.
@@ -614,12 +704,11 @@ func (c *StreamConfig) Build() (*internet.StreamConfig, error) {
 		}
 		config.ProtocolName = protocol
 	}
-	if strings.EqualFold(c.Security, "tls") {
+	switch strings.ToLower(c.Security) {
+	case "", "none":
+	case "tls":
 		tlsSettings := c.TLSSettings
 		if tlsSettings == nil {
-			if c.XTLSSettings != nil {
-				return nil, newError(`TLS: Please use "tlsSettings" instead of "xtlsSettings".`)
-			}
 			tlsSettings = &TLSConfig{}
 		}
 		ts, err := tlsSettings.Build()
@@ -629,25 +718,24 @@ func (c *StreamConfig) Build() (*internet.StreamConfig, error) {
 		tm := serial.ToTypedMessage(ts)
 		config.SecuritySettings = append(config.SecuritySettings, tm)
 		config.SecurityType = tm.Type
-	}
-	if strings.EqualFold(c.Security, "xtls") {
-		if config.ProtocolName != "tcp" && config.ProtocolName != "mkcp" && config.ProtocolName != "domainsocket" {
-			return nil, newError("XTLS only supports TCP, mKCP and DomainSocket for now.")
+	case "reality":
+		if config.ProtocolName != "tcp" && config.ProtocolName != "http" && config.ProtocolName != "grpc" && config.ProtocolName != "domainsocket" {
+			return nil, newError("REALITY only supports TCP, H2, gRPC and DomainSocket for now.")
 		}
-		xtlsSettings := c.XTLSSettings
-		if xtlsSettings == nil {
-			if c.TLSSettings != nil {
-				return nil, newError(`XTLS: Please use "xtlsSettings" instead of "tlsSettings".`)
-			}
-			xtlsSettings = &XTLSConfig{}
+		if c.REALITYSettings == nil {
+			return nil, newError(`REALITY: Empty "realitySettings".`)
 		}
-		ts, err := xtlsSettings.Build()
+		ts, err := c.REALITYSettings.Build()
 		if err != nil {
-			return nil, newError("Failed to build XTLS config.").Base(err)
+			return nil, newError("Failed to build REALITY config.").Base(err)
 		}
 		tm := serial.ToTypedMessage(ts)
 		config.SecuritySettings = append(config.SecuritySettings, tm)
 		config.SecurityType = tm.Type
+	case "xtls":
+		return nil, newError(`Please use VLESS flow "xtls-rprx-vision" with TLS or REALITY.`)
+	default:
+		return nil, newError(`Unknown security "` + c.Security + `".`)
 	}
 	if c.TCPSettings != nil {
 		ts, err := c.TCPSettings.Build()

infra/conf/trojan.go

@@ -53,11 +53,7 @@ func (c *TrojanClientConfig) Build() (proto.Message, error) {
 		}
 
 		switch account.Flow {
-		case "", "xtls-rprx-origin", "xtls-rprx-origin-udp443", "xtls-rprx-direct", "xtls-rprx-direct-udp443":
-		case "xtls-rprx-splice", "xtls-rprx-splice-udp443":
-			if runtime.GOOS != "linux" && runtime.GOOS != "android" {
-				return nil, newError(`Trojan servers: "` + account.Flow + `" only support linux in this version`)
-			}
+		case "":
 		default:
 			return nil, newError(`Trojan servers: "flow" doesn't support "` + account.Flow + `" in this version`)
 		}
@@ -119,9 +115,7 @@ func (c *TrojanServerConfig) Build() (proto.Message, error) {
 		}
 
 		switch account.Flow {
-		case "", "xtls-rprx-origin", "xtls-rprx-direct":
-		case "xtls-rprx-splice":
-			return nil, newError(`Trojan clients: inbound doesn't support "xtls-rprx-splice" in this version, please use "xtls-rprx-direct" instead`)
+		case "":
 		default:
 			return nil, newError(`Trojan clients: "flow" doesn't support "` + account.Flow + `" in this version`)
 		}

infra/conf/vless.go

@@ -4,7 +4,6 @@ import (
 	"encoding/json"
 	"runtime"
 	"strconv"
-	"strings"
 	"syscall"
 
 	"github.com/golang/protobuf/proto"
@@ -53,18 +52,8 @@ func (c *VLessInboundConfig) Build() (proto.Message, error) {
 		}
 		account.Id = u.String()
 
-		accountFlow := account.Flow
-		flows := strings.Split(account.Flow, ",")
-		for _, f := range flows {
-			t := strings.TrimSpace(f)
-			if t != "none" {
-				accountFlow = t
-			}
-		}
-		switch accountFlow {
-		case "", vless.XRO, vless.XRD, vless.XRV:
-		case vless.XRS:
-			return nil, newError(`VLESS clients: inbound doesn't support "xtls-rprx-splice" in this version, please use "xtls-rprx-direct" instead`)
+		switch account.Flow {
+		case "", vless.XRV:
 		default:
 			return nil, newError(`VLESS clients: "flow" doesn't support "` + account.Flow + `" in this version`)
 		}
@@ -191,11 +180,7 @@ func (c *VLessOutboundConfig) Build() (proto.Message, error) {
 			account.Id = u.String()
 
 			switch account.Flow {
-			case "", vless.XRO, vless.XRO + "-udp443", vless.XRD, vless.XRD + "-udp443", vless.XRV, vless.XRV + "-udp443":
-			case vless.XRS, vless.XRS + "-udp443":
-				if runtime.GOOS != "linux" && runtime.GOOS != "android" {
-					return nil, newError(`VLESS users: "` + account.Flow + `" only support linux in this version`)
-				}
+			case "", vless.XRV, vless.XRV + "-udp443":
 			default:
 				return nil, newError(`VLESS users: "flow" doesn't support "` + account.Flow + `" in this version`)
 			}

infra/conf/vless_test.go

@@ -26,7 +26,7 @@ func TestVLessOutbound(t *testing.T) {
 					"users": [
 						{
 							"id": "27848739-7e62-4138-9fd3-098a63964b6b",
-							"flow": "xtls-rprx-direct-udp443",
+							"flow": "xtls-rprx-vision-udp443",
 							"encryption": "none",
 							"level": 0
 						}
@@ -47,7 +47,7 @@ func TestVLessOutbound(t *testing.T) {
 							{
 								Account: serial.ToTypedMessage(&vless.Account{
 									Id:         "27848739-7e62-4138-9fd3-098a63964b6b",
-									Flow:       "xtls-rprx-direct-udp443",
+									Flow:       "xtls-rprx-vision-udp443",
 									Encryption: "none",
 								}),
 								Level: 0,
@@ -71,7 +71,7 @@ func TestVLessInbound(t *testing.T) {
 				"clients": [
 					{
 						"id": "27848739-7e62-4138-9fd3-098a63964b6b",
-						"flow": "xtls-rprx-direct",
+						"flow": "xtls-rprx-vision",
 						"level": 0,
 						"email": "love@example.com"
 					}
@@ -98,7 +98,7 @@ func TestVLessInbound(t *testing.T) {
 					{
 						Account: serial.ToTypedMessage(&vless.Account{
 							Id:   "27848739-7e62-4138-9fd3-098a63964b6b",
-							Flow: "xtls-rprx-direct",
+							Flow: "xtls-rprx-vision",
 						}),
 						Level: 0,
 						Email: "love@example.com",

infra/conf/wireguard.go

@@ -52,6 +52,7 @@ type WireGuardConfig struct {
 	Peers      []*WireGuardPeerConfig `json:"peers"`
 	MTU        int                    `json:"mtu"`
 	NumWorkers int                    `json:"workers"`
+	Reserved   []byte                 `json:"reserved"`
 }
 
 func (c *WireGuardConfig) Build() (proto.Message, error) {
@@ -90,6 +91,11 @@ func (c *WireGuardConfig) Build() (proto.Message, error) {
 	// we don't need to process fallback manually
 	config.NumWorkers = int32(c.NumWorkers)
 
+	if len(c.Reserved) != 0 && len(c.Reserved) != 3 {
+		return nil, newError(`"reserved" should be empty or 3 bytes`)
+	}
+	config.Reserved = c.Reserved
+
 	return config, nil
 }
 

infra/conf/xray.go

@@ -13,7 +13,6 @@ import (
 	"github.com/xtls/xray-core/common/serial"
 	core "github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/transport/internet"
-	"github.com/xtls/xray-core/transport/internet/xtls"
 )
 
 var (
@@ -108,25 +107,45 @@ func (c *SniffingConfig) Build() (*proxyman.SniffingConfig, error) {
 }
 
 type MuxConfig struct {
-	Enabled     bool  `json:"enabled"`
-	Concurrency int16 `json:"concurrency"`
+	Enabled         bool   `json:"enabled"`
+	Concurrency     int16  `json:"concurrency"`
+	XudpConcurrency int16  `json:"xudpConcurrency"`
+	XudpProxyUDP443 string `json:"xudpProxyUDP443"`
 }
 
 // Build creates MultiplexingConfig, Concurrency < 0 completely disables mux.
-func (m *MuxConfig) Build() *proxyman.MultiplexingConfig {
-	if m.Concurrency < 0 {
-		return nil
+func (m *MuxConfig) Build() (*proxyman.MultiplexingConfig, error) {
+	switch m.XudpProxyUDP443 {
+	case "":
+		m.XudpProxyUDP443 = "reject"
+	case "reject", "allow", "skip":
+	default:
+		return nil, newError(`unknown "xudpProxyUDP443": `, m.XudpProxyUDP443)
 	}
-
-	var con uint32 = 8
-	if m.Concurrency > 0 {
-		con = uint32(m.Concurrency)
-	}
-
 	return &proxyman.MultiplexingConfig{
-		Enabled:     m.Enabled,
-		Concurrency: con,
-	}
+		Enabled:         m.Enabled,
+		Concurrency:     int32(m.Concurrency),
+		XudpConcurrency: int32(m.XudpConcurrency),
+		XudpProxyUDP443: m.XudpProxyUDP443,
+	}, nil
+}
+
+type SingMuxConfig struct {
+	Enabled        bool   `json:"enabled"`
+	Protocol       string `json:"protocol"`
+	MaxConnections int    `json:"max_connections"`
+	MinStreams     int    `json:"min_streams"`
+	MaxStreams     int    `json:"max_streams"`
+}
+
+func (m *SingMuxConfig) Build() (*proxyman.SingMultiplexConfig, error) {
+	return &proxyman.SingMultiplexConfig{
+		Enabled:        m.Enabled,
+		Protocol:       m.Protocol,
+		MaxConnections: int32(m.MaxConnections),
+		MinStreams:     int32(m.MinStreams),
+		MaxStreams:     int32(m.MaxStreams),
+	}, nil
 }
 
 type InboundDetourAllocationConfig struct {
@@ -236,9 +255,6 @@ func (c *InboundDetourConfig) Build() (*core.InboundHandlerConfig, error) {
 		if err != nil {
 			return nil, err
 		}
-		if ss.SecurityType == serial.GetMessageType(&xtls.Config{}) && !strings.EqualFold(c.Protocol, "vless") && !strings.EqualFold(c.Protocol, "trojan") {
-			return nil, newError("XTLS doesn't supports " + c.Protocol + " for now.")
-		}
 		receiverSettings.StreamSettings = ss
 	}
 	if c.SniffingConfig != nil {
@@ -280,13 +296,14 @@ func (c *InboundDetourConfig) Build() (*core.InboundHandlerConfig, error) {
 }
 
 type OutboundDetourConfig struct {
-	Protocol      string           `json:"protocol"`
-	SendThrough   *Address         `json:"sendThrough"`
-	Tag           string           `json:"tag"`
-	Settings      *json.RawMessage `json:"settings"`
-	StreamSetting *StreamConfig    `json:"streamSettings"`
-	ProxySettings *ProxyConfig     `json:"proxySettings"`
-	MuxSettings   *MuxConfig       `json:"mux"`
+	Protocol        string           `json:"protocol"`
+	SendThrough     *Address         `json:"sendThrough"`
+	Tag             string           `json:"tag"`
+	Settings        *json.RawMessage `json:"settings"`
+	StreamSetting   *StreamConfig    `json:"streamSettings"`
+	ProxySettings   *ProxyConfig     `json:"proxySettings"`
+	MuxSettings     *MuxConfig       `json:"mux"`
+	SingMuxSettings *SingMuxConfig   `json:"smux"`
 }
 
 func (c *OutboundDetourConfig) checkChainProxyConfig() error {
@@ -319,9 +336,6 @@ func (c *OutboundDetourConfig) Build() (*core.OutboundHandlerConfig, error) {
 		if err != nil {
 			return nil, err
 		}
-		if ss.SecurityType == serial.GetMessageType(&xtls.Config{}) && !strings.EqualFold(c.Protocol, "vless") && !strings.EqualFold(c.Protocol, "trojan") {
-			return nil, newError("XTLS doesn't supports " + c.Protocol + " for now.")
-		}
 		senderSettings.StreamSettings = ss
 	}
 
@@ -346,16 +360,19 @@ func (c *OutboundDetourConfig) Build() (*core.OutboundHandlerConfig, error) {
 	}
 
 	if c.MuxSettings != nil {
-		ms := c.MuxSettings.Build()
-		if ms != nil && ms.Enabled {
-			if ss := senderSettings.StreamSettings; ss != nil {
-				if ss.SecurityType == serial.GetMessageType(&xtls.Config{}) {
-					return nil, newError("XTLS doesn't support Mux for now.")
-				}
-			}
+		ms, err := c.MuxSettings.Build()
+		if err != nil {
+			return nil, newError("failed to build Mux config.").Base(err)
 		}
 		senderSettings.MultiplexSettings = ms
 	}
+	if c.SingMuxSettings != nil {
+		ms, err := c.SingMuxSettings.Build()
+		if err != nil {
+			return nil, newError("failed to build sing-mux config.").Base(err)
+		}
+		senderSettings.SmuxSettings = ms
+	}
 
 	settings := []byte("{}")
 	if c.Settings != nil {

infra/conf/xray_test.go

@@ -340,24 +340,35 @@ func TestMuxConfig_Build(t *testing.T) {
 		want   *proxyman.MultiplexingConfig
 	}{
 		{"default", `{"enabled": true, "concurrency": 16}`, &proxyman.MultiplexingConfig{
-			Enabled:     true,
-			Concurrency: 16,
+			Enabled:         true,
+			Concurrency:     16,
+			XudpConcurrency: 0,
+			XudpProxyUDP443: "reject",
 		}},
 		{"empty def", `{}`, &proxyman.MultiplexingConfig{
-			Enabled:     false,
-			Concurrency: 8,
+			Enabled:         false,
+			Concurrency:     0,
+			XudpConcurrency: 0,
+			XudpProxyUDP443: "reject",
 		}},
 		{"not enable", `{"enabled": false, "concurrency": 4}`, &proxyman.MultiplexingConfig{
-			Enabled:     false,
-			Concurrency: 4,
+			Enabled:         false,
+			Concurrency:     4,
+			XudpConcurrency: 0,
+			XudpProxyUDP443: "reject",
+		}},
+		{"forbidden", `{"enabled": false, "concurrency": -1}`, &proxyman.MultiplexingConfig{
+			Enabled:         false,
+			Concurrency:     -1,
+			XudpConcurrency: 0,
+			XudpProxyUDP443: "reject",
 		}},
-		{"forbidden", `{"enabled": false, "concurrency": -1}`, nil},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
 			m := &MuxConfig{}
 			common.Must(json.Unmarshal([]byte(tt.fields), m))
-			if got := m.Build(); !reflect.DeepEqual(got, tt.want) {
+			if got, _ := m.Build(); !reflect.DeepEqual(got, tt.want) {
 				t.Errorf("MuxConfig.Build() = %v, want %v", got, tt.want)
 			}
 		})

main/commands/all/commands.go

@@ -15,5 +15,6 @@ func init() {
 		// cmdConvert,
 		tls.CmdTLS,
 		cmdUUID,
+		cmdX25519,
 	)
 }

main/commands/all/x25519.go

@@ -0,0 +1,71 @@
+package all
+
+import (
+	"crypto/rand"
+	"encoding/base64"
+	"fmt"
+
+	"github.com/xtls/xray-core/main/commands/base"
+	"golang.org/x/crypto/curve25519"
+)
+
+var cmdX25519 = &base.Command{
+	UsageLine: `{{.Exec}} x25519 [-i "private key (base64.RawURLEncoding)"]`,
+	Short:     `Generate key pair for x25519 key exchange`,
+	Long: `
+Generate key pair for x25519 key exchange.
+
+Random: {{.Exec}} x25519
+
+From private key: {{.Exec}} x25519 -i "private key (base64.RawURLEncoding)"
+`,
+}
+
+func init() {
+	cmdX25519.Run = executeX25519 // break init loop
+}
+
+var input_base64 = cmdX25519.Flag.String("i", "", "")
+
+func executeX25519(cmd *base.Command, args []string) {
+	var output string
+	var err error
+	var privateKey []byte
+	var publicKey []byte
+	if len(*input_base64) > 0 {
+		privateKey, err = base64.RawURLEncoding.DecodeString(*input_base64)
+		if err != nil {
+			output = err.Error()
+			goto out
+		}
+		if len(privateKey) != curve25519.ScalarSize {
+			output = "Invalid length of private key."
+			goto out
+		}
+	}
+
+	if privateKey == nil {
+		privateKey = make([]byte, curve25519.ScalarSize)
+		if _, err = rand.Read(privateKey); err != nil {
+			output = err.Error()
+			goto out
+		}
+	}
+
+	// Modify random bytes using algorithm described at:
+	// https://cr.yp.to/ecdh.html.
+	privateKey[0] &= 248
+	privateKey[31] &= 127
+	privateKey[31] |= 64
+
+	if publicKey, err = curve25519.X25519(privateKey, curve25519.Basepoint); err != nil {
+		output = err.Error()
+		goto out
+	}
+
+	output = fmt.Sprintf("Private key: %v\nPublic key: %v",
+		base64.RawURLEncoding.EncodeToString(privateKey),
+		base64.RawURLEncoding.EncodeToString(publicKey))
+out:
+	fmt.Println(output)
+}

main/distro/all/all.go

@@ -56,11 +56,11 @@ import (
 	_ "github.com/xtls/xray-core/transport/internet/http"
 	_ "github.com/xtls/xray-core/transport/internet/kcp"
 	_ "github.com/xtls/xray-core/transport/internet/quic"
+	_ "github.com/xtls/xray-core/transport/internet/reality"
 	_ "github.com/xtls/xray-core/transport/internet/tcp"
 	_ "github.com/xtls/xray-core/transport/internet/tls"
 	_ "github.com/xtls/xray-core/transport/internet/udp"
 	_ "github.com/xtls/xray-core/transport/internet/websocket"
-	_ "github.com/xtls/xray-core/transport/internet/xtls"
 
 	// Transport headers
 	_ "github.com/xtls/xray-core/transport/internet/headers/http"

proxy/blackhole/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: proxy/blackhole/config.proto
 
 package blackhole

proxy/dns/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: proxy/dns/config.proto
 
 package dns

proxy/dns/dns.go

@@ -148,6 +148,10 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, d internet.
 		}
 	}
 
+	if session.TimeoutOnlyFromContext(ctx) {
+		ctx, _ = context.WithCancel(context.Background())
+	}
+
 	ctx, cancel := context.WithCancel(ctx)
 	timer := signal.CancelAfterInactivity(ctx, cancel, h.timeout)
 

proxy/dokodemo/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: proxy/dokodemo/config.proto
 
 package dokodemo

proxy/dokodemo/dokodemo.go

@@ -103,6 +103,7 @@ func (d *DokodemoDoor) Process(ctx context.Context, network net.Network, conn st
 
 	inbound := session.InboundFromContext(ctx)
 	if inbound != nil {
+		inbound.Name = "dokodemo-door"
 		inbound.User = &protocol.MemoryUser{
 			Level: d.config.UserLevel,
 		}

proxy/freedom/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: proxy/freedom/config.proto
 
 package freedom

proxy/freedom/freedom.go

@@ -117,7 +117,6 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 			UDPOverride.Port = destination.Port
 		}
 	}
-	newError("opening connection to ", destination).WriteToLog(session.ExportIDToError(ctx))
 
 	input := link.Reader
 	output := link.Writer
@@ -148,10 +147,22 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 		return newError("failed to open connection to ", destination).Base(err)
 	}
 	defer conn.Close()
+	newError("connection opened to ", destination, ", local endpoint ", conn.LocalAddr(), ", remote endpoint ", conn.RemoteAddr()).WriteToLog(session.ExportIDToError(ctx))
+
+	var newCtx context.Context
+	var newCancel context.CancelFunc
+	if session.TimeoutOnlyFromContext(ctx) {
+		newCtx, newCancel = context.WithCancel(context.Background())
+	}
 
 	plcy := h.policy()
 	ctx, cancel := context.WithCancel(ctx)
-	timer := signal.CancelAfterInactivity(ctx, cancel, plcy.Timeouts.ConnectionIdle)
+	timer := signal.CancelAfterInactivity(ctx, func() {
+		cancel()
+		if newCancel != nil {
+			newCancel()
+		}
+	}, plcy.Timeouts.ConnectionIdle)
 
 	requestDone := func() error {
 		defer timer.SetTimeout(plcy.Timeouts.DownlinkOnly)
@@ -186,6 +197,10 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 		return nil
 	}
 
+	if newCtx != nil {
+		ctx = newCtx
+	}
+
 	if err := task.Run(ctx, requestDone, task.OnSuccess(responseDone, task.Close(output))); err != nil {
 		return newError("connection ends").Base(err)
 	}

proxy/http/client.go

@@ -128,8 +128,19 @@ func (c *Client) Process(ctx context.Context, link *transport.Link, dialer inter
 		p = c.policyManager.ForLevel(user.Level)
 	}
 
+	var newCtx context.Context
+	var newCancel context.CancelFunc
+	if session.TimeoutOnlyFromContext(ctx) {
+		newCtx, newCancel = context.WithCancel(context.Background())
+	}
+
 	ctx, cancel := context.WithCancel(ctx)
-	timer := signal.CancelAfterInactivity(ctx, cancel, p.Timeouts.ConnectionIdle)
+	timer := signal.CancelAfterInactivity(ctx, func() {
+		cancel()
+		if newCancel != nil {
+			newCancel()
+		}
+	}, p.Timeouts.ConnectionIdle)
 
 	requestFunc := func() error {
 		defer timer.SetTimeout(p.Timeouts.DownlinkOnly)
@@ -140,6 +151,10 @@ func (c *Client) Process(ctx context.Context, link *transport.Link, dialer inter
 		return buf.Copy(buf.NewReader(conn), link.Writer, buf.UpdateActivity(timer))
 	}
 
+	if newCtx != nil {
+		ctx = newCtx
+	}
+
 	responseDonePost := task.OnSuccess(responseFunc, task.Close(link.Writer))
 	if err := task.Run(ctx, requestFunc, responseDonePost); err != nil {
 		return newError("connection ends").Base(err)

proxy/http/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: proxy/http/config.proto
 
 package http

proxy/http/server.go

@@ -85,6 +85,7 @@ type readerOnly struct {
 func (s *Server) Process(ctx context.Context, network net.Network, conn stat.Connection, dispatcher routing.Dispatcher) error {
 	inbound := session.InboundFromContext(ctx)
 	if inbound != nil {
+		inbound.Name = "http"
 		inbound.User = &protocol.MemoryUser{
 			Level: s.config.UserLevel,
 		}

proxy/loopback/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: proxy/loopback/config.proto
 
 package loopback

proxy/mtproto/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: proxy/mtproto/config.proto
 
 package mtproto

proxy/shadowsocks/client.go

@@ -96,9 +96,24 @@ func (c *Client) Process(ctx context.Context, link *transport.Link, dialer inter
 	}
 	request.User = user
 
+	var newCtx context.Context
+	var newCancel context.CancelFunc
+	if session.TimeoutOnlyFromContext(ctx) {
+		newCtx, newCancel = context.WithCancel(context.Background())
+	}
+
 	sessionPolicy := c.policyManager.ForLevel(user.Level)
 	ctx, cancel := context.WithCancel(ctx)
-	timer := signal.CancelAfterInactivity(ctx, cancel, sessionPolicy.Timeouts.ConnectionIdle)
+	timer := signal.CancelAfterInactivity(ctx, func() {
+		cancel()
+		if newCancel != nil {
+			newCancel()
+		}
+	}, sessionPolicy.Timeouts.ConnectionIdle)
+
+	if newCtx != nil {
+		ctx = newCtx
+	}
 
 	if request.Command == protocol.RequestCommandTCP {
 		requestDone := func() error {

proxy/shadowsocks/config.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.18.0
+// 	protoc        v3.21.12
 // source: proxy/shadowsocks/config.proto
 
 package shadowsocks

proxy/shadowsocks/server.go

@@ -113,6 +113,7 @@ func (s *Server) handleUDPPayload(ctx context.Context, conn stat.Connection, dis
 	if inbound == nil {
 		panic("no inbound metadata")
 	}
+	inbound.Name = "shadowsocks"
 
 	var dest *net.Destination