Improve build

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -1,5 +1,6 @@
 name: Bug Report
 description: "Create a report to help us improve."
+labels: [ bug ]
 body:
   - type: checkboxes
     id: terms
@@ -8,11 +9,9 @@ body:
       options:
         - label: Yes, I'm using the latest major release. Only such installations are supported.
           required: true
-        - label: Yes, I'm using the latest Golang release. Only such installations are supported.
-          required: true
         - label: Yes, I've searched similar issues on GitHub and didn't find any.
           required: true
-        - label: Yes, I've included all information below (version, **FULL** config, **FULL** log, etc).
+        - label: Yes, I've included all information below (version, config, etc).
           required: true
 
   - type: textarea
@@ -31,7 +30,7 @@ body:
         <details>
 
         ```console
-        $ sing-box version
+        $ sing-box --version
         # Paste output here
         ```
 
@@ -52,19 +51,4 @@ body:
 
         </details>
     validations:
-      required: true
-
-  - type: textarea
-    id: log
-    attributes:
-      label: Server and client log file
-      value: |-
-        <details>
-
-        ```console
-        # paste log here
-        ```
-
-        </details>
-    validations:
-      required: true
+      required: true

.github/renovate.json

@@ -1,28 +0,0 @@
-{
-  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "commitMessagePrefix": "[dependencies]",
-  "extends": [
-    "config:base",
-    ":disableRateLimiting"
-  ],
-  "baseBranches": [
-    "dev-next"
-  ],
-  "golang": {
-    "enabled": false
-  },
-  "packageRules": [
-    {
-      "matchManagers": [
-        "github-actions"
-      ],
-      "groupName": "github-actions"
-    },
-    {
-      "matchManagers": [
-        "dockerfile"
-      ],
-      "groupName": "Dockerfile"
-    }
-  ]
-}

.github/update_dependencies.sh

@@ -1,5 +1,13 @@
 #!/usr/bin/env bash
 
 PROJECTS=$(dirname "$0")/../..
-go get -x github.com/sagernet/$1@$(git -C $PROJECTS/$1 rev-parse HEAD)
+
+go get -x github.com/sagernet/sing@$(git -C $PROJECTS/sing rev-parse HEAD)
+go get -x github.com/sagernet/sing-dns@$(git -C $PROJECTS/sing-dns rev-parse HEAD)
+go get -x github.com/sagernet/sing-tun@$(git -C $PROJECTS/sing-tun rev-parse HEAD)
+go get -x github.com/sagernet/sing-shadowsocks@$(git -C $PROJECTS/sing-shadowsocks rev-parse HEAD)
+go get -x github.com/sagernet/sing-vmess@$(git -C $PROJECTS/sing-vmess rev-parse HEAD)
 go mod tidy
+pushd test
+go mod tidy
+popd

.github/workflows/debug.yml

@@ -3,36 +3,38 @@ name: Debug build
 on:
   push:
     branches:
-      - main-next
-      - dev-next
+      - dev
     paths-ignore:
       - '**.md'
       - '.github/**'
       - '!.github/workflows/debug.yml'
   pull_request:
     branches:
-      - main-next
-      - dev-next
+      - dev
 
 jobs:
   build:
     name: Debug build
     runs-on: ubuntu-latest
     steps:
+      - name: Cancel previous
+        uses: styfle/cancel-workflow-action@0.7.0
+        with:
+          access_token: ${{ github.token }}
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2
         with:
           fetch-depth: 0
       - name: Get latest go version
         id: version
         run: |
-          echo go_version=$(curl -s https://raw.githubusercontent.com/actions/go-versions/main/versions-manifest.json | grep -oE '"version": "[0-9]{1}.[0-9]{1,}(.[0-9]{1,})?"' | head -1 | cut -d':' -f2 | sed 's/ //g; s/"//g') >> $GITHUB_OUTPUT
+          echo ::set-output name=go_version::$(curl -s https://raw.githubusercontent.com/actions/go-versions/main/versions-manifest.json | grep -oE '"version": "[0-9]{1}.[0-9]{1,}(.[0-9]{1,})?"' | head -1 | cut -d':' -f2 | sed 's/ //g; s/"//g')
       - name: Setup Go
-        uses: actions/setup-go@v4
+        uses: actions/setup-go@v2
         with:
           go-version: ${{ steps.version.outputs.go_version }}
       - name: Cache go module
-        uses: actions/cache@v3
+        uses: actions/cache@v2
         with:
           path: |
             ~/go/pkg/mod
@@ -45,30 +47,9 @@ jobs:
           go mod init build
           go get -v github.com/sagernet/sing-box@$version
           popd
-        continue-on-error: true
       - name: Run Test
         run: |
           go test -v ./...
-  build_go118:
-    name: Debug build (Go 1.18)
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-        with:
-          fetch-depth: 0
-      - name: Setup Go
-        uses: actions/setup-go@v4
-        with:
-          go-version: 1.18.10
-      - name: Cache go module
-        uses: actions/cache@v3
-        with:
-          path: |
-            ~/go/pkg/mod
-          key: go118-${{ hashFiles('**/go.sum') }}
-      - name: Run Test
-        run: make
   cross:
     strategy:
       matrix:
@@ -142,9 +123,6 @@ jobs:
           - name: linux-mips64el
             goos: linux
             goarch: mips64le
-          - name: linux-s390x
-            goos: linux
-            goarch: s390x
           # darwin
           - name: darwin-amd64
             goos: darwin
@@ -182,22 +160,21 @@ jobs:
       GOARM: ${{ matrix.goarm }}
       GOMIPS: ${{ matrix.gomips }}
       CGO_ENABLED: 0
-      TAGS: with_clash_api,with_quic
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2
         with:
           fetch-depth: 0
       - name: Get latest go version
         id: version
         run: |
-          echo go_version=$(curl -s https://raw.githubusercontent.com/actions/go-versions/main/versions-manifest.json | grep -oE '"version": "[0-9]{1}.[0-9]{1,}(.[0-9]{1,})?"' | head -1 | cut -d':' -f2 | sed 's/ //g; s/"//g') >> $GITHUB_OUTPUT
+          echo ::set-output name=go_version::$(curl -s https://raw.githubusercontent.com/actions/go-versions/main/versions-manifest.json | grep -oE '"version": "[0-9]{1}.[0-9]{1,}(.[0-9]{1,})?"' | head -1 | cut -d':' -f2 | sed 's/ //g; s/"//g')
       - name: Setup Go
-        uses: actions/setup-go@v4
+        uses: actions/setup-go@v2
         with:
           go-version: ${{ steps.version.outputs.go_version }}
       - name: Cache go module
-        uses: actions/cache@v3
+        uses: actions/cache@v2
         with:
           path: |
             ~/go/pkg/mod
@@ -206,7 +183,7 @@ jobs:
         id: build
         run: make
       - name: Upload artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v2
         with:
           name: sing-box-${{ matrix.name }}
-          path: sing-box*
+          path: sing-box*

.github/workflows/docker.yml

@@ -1,45 +0,0 @@
-name: Build Docker Images
-on:
-  workflow_dispatch:
-    inputs:
-      tag:
-        description: "The tag version you want to build"
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-      - name: Setup Docker Buildx
-        uses: docker/setup-buildx-action@v2
-      - name: Setup QEMU for Docker Buildx
-        uses: docker/setup-qemu-action@v2
-      - name: Login to GitHub Container Registry
-        uses: docker/login-action@v2
-        with:
-          registry: ghcr.io
-          username: ${{ github.repository_owner }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-      - name: Docker metadata
-        id: metadata
-        uses: docker/metadata-action@v4
-        with:
-          images: ghcr.io/sagernet/sing-box
-      - name: Get tag to build
-        id: tag
-        run: |
-          echo "latest=ghcr.io/sagernet/sing-box:latest" >> $GITHUB_OUTPUT
-          if [[ -z "${{ github.event.inputs.tag }}" ]]; then
-            echo "versioned=ghcr.io/sagernet/sing-box:${{ github.ref_name }}" >> $GITHUB_OUTPUT
-          else
-            echo "versioned=ghcr.io/sagernet/sing-box:${{ github.event.inputs.tag }}" >> $GITHUB_OUTPUT
-          fi
-      - name: Build and release Docker images
-        uses: docker/build-push-action@v4
-        with:
-          platforms: linux/386,linux/amd64,linux/arm64,linux/s390x
-          target: dist
-          tags: |
-            ${{ steps.tag.outputs.latest }}
-            ${{ steps.tag.outputs.versioned }}
-          push: true

.github/workflows/lint.yml

@@ -3,40 +3,45 @@ name: Lint
 on:
   push:
     branches:
-      - main-next
-      - dev-next
+      - dev
     paths-ignore:
       - '**.md'
       - '.github/**'
-      - '!.github/workflows/lint.yml'
+      - '!.github/workflows/debug.yml'
   pull_request:
     branches:
-      - main-next
-      - dev-next
+      - dev
 
 jobs:
   build:
     name: Build
     runs-on: ubuntu-latest
     steps:
+      - name: Cancel previous
+        uses: styfle/cancel-workflow-action@0.7.0
+        with:
+          access_token: ${{ github.token }}
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2
         with:
           fetch-depth: 0
       - name: Get latest go version
         id: version
         run: |
-          echo go_version=$(curl -s https://raw.githubusercontent.com/actions/go-versions/main/versions-manifest.json | grep -oE '"version": "[0-9]{1}.[0-9]{1,}(.[0-9]{1,})?"' | head -1 | cut -d':' -f2 | sed 's/ //g; s/"//g') >> $GITHUB_OUTPUT
+          echo ::set-output name=go_version::$(curl -s https://raw.githubusercontent.com/actions/go-versions/main/versions-manifest.json | grep -oE '"version": "[0-9]{1}.[0-9]{1,}(.[0-9]{1,})?"' | head -1 | cut -d':' -f2 | sed 's/ //g; s/"//g')
       - name: Setup Go
-        uses: actions/setup-go@v4
+        uses: actions/setup-go@v2
         with:
           go-version: ${{ steps.version.outputs.go_version }}
       - name: Cache go module
-        uses: actions/cache@v3
+        uses: actions/cache@v2
         with:
           path: |
             ~/go/pkg/mod
           key: go-${{ hashFiles('**/go.sum') }}
+      - name: Get dependencies
+        run: |
+          go mod download -x
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v3
         with:

.github/workflows/mkdocs.yml

@@ -10,11 +10,9 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-python@v4
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
         with:
           python-version: 3.x
-      - run: |
-          pip install mkdocs-material=="9.*" mkdocs-static-i18n=="0.53"
-      - run: |
-          mkdocs gh-deploy -m "{sha}" --force --ignore-version --no-history
+      - run: pip install mkdocs-material
+      - run: mkdocs gh-deploy -m "{sha}" --force --ignore-version --no-history

.github/workflows/stale.yml

@@ -1,15 +0,0 @@
-name: Mark stale issues and pull requests
-
-on:
-  schedule:
-    - cron: "30 1 * * *"
-
-jobs:
-  stale:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/stale@v7
-        with:
-          stale-issue-message: 'This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 5 days'
-          days-before-stale: 60
-          days-before-close: 5

.gitignore

@@ -3,13 +3,4 @@
 /*.json
 /*.db
 /site/
-/bin/
-/dist/
-/sing-box
-/sing-box.exe
-/build/
-/*.jar
-/*.aar
-/*.xcframework/
-.DS_Store
-/config.d/
+/bin/

.golangci.yml

@@ -7,20 +7,14 @@ linters:
     - staticcheck
     - paralleltest
 
-run:
-  skip-dirs:
-    - transport/simple-obfs
-    - transport/clashssr
-    - transport/cloudflaretls
-    - transport/shadowtls/tls
-    - transport/shadowtls/tls_go119
+issues:
+  fix: true
 
 linters-settings:
   gci:
-    custom-order: true
     sections:
       - standard
       - prefix(github.com/sagernet/)
       - default
   staticcheck:
-    go: '1.20'
+    go: '1.19'

.goreleaser.yaml

@@ -1,135 +0,0 @@
-project_name: sing-box
-builds:
-  - id: main
-    main: ./cmd/sing-box
-    flags:
-      - -v
-      - -trimpath
-    asmflags:
-      - all=-trimpath={{.Env.GOPATH}}
-    gcflags:
-      - all=-trimpath={{.Env.GOPATH}}
-    ldflags:
-      - -X github.com/sagernet/sing-box/constant.Version={{ .Version }} -s -w -buildid=
-    tags:
-      - with_gvisor
-      - with_quic
-      - with_wireguard
-      - with_utls
-      - with_reality_server
-      - with_clash_api
-    env:
-      - CGO_ENABLED=0
-    targets:
-      - linux_amd64_v1
-      - linux_amd64_v3
-      - linux_arm64
-      - linux_arm_7
-      - linux_s390x
-      - windows_amd64_v1
-      - windows_amd64_v3
-      - windows_386
-      - windows_arm64
-      - darwin_amd64_v1
-      - darwin_amd64_v3
-      - darwin_arm64
-    mod_timestamp: '{{ .CommitTimestamp }}'
-  - id: android
-    main: ./cmd/sing-box
-    flags:
-      - -v
-      - -trimpath
-    asmflags:
-      - all=-trimpath={{.Env.GOPATH}}
-    gcflags:
-      - all=-trimpath={{.Env.GOPATH}}
-    ldflags:
-      - -X github.com/sagernet/sing-box/constant.Version={{ .Version }} -s -w -buildid=
-    tags:
-      - with_gvisor
-      - with_quic
-      - with_wireguard
-      - with_utls
-      - with_clash_api
-    env:
-      - CGO_ENABLED=1
-    overrides:
-      - goos: android
-        goarch: arm
-        goarm: 7
-        env:
-          - CC=armv7a-linux-androideabi19-clang
-          - CXX=armv7a-linux-androideabi19-clang++
-      - goos: android
-        goarch: arm64
-        env:
-          - CC=aarch64-linux-android21-clang
-          - CXX=aarch64-linux-android21-clang++
-      - goos: android
-        goarch: 386
-        env:
-          - CC=i686-linux-android19-clang
-          - CXX=i686-linux-android19-clang++
-      - goos: android
-        goarch: amd64
-        goamd64: v1
-        env:
-          - CC=x86_64-linux-android21-clang
-          - CXX=x86_64-linux-android21-clang++
-    targets:
-      - android_arm_7
-      - android_arm64
-      - android_386
-      - android_amd64
-    mod_timestamp: '{{ .CommitTimestamp }}'
-snapshot:
-  name_template: "{{ .Version }}.{{ .ShortCommit }}"
-archives:
-  - id: archive
-    format: tar.gz
-    format_overrides:
-      - goos: windows
-        format: zip
-    wrap_in_directory: true
-    files:
-      - LICENSE
-    name_template: '{{ .ProjectName }}-{{ .Version }}-{{ .Os }}-{{ .Arch }}{{ with .Arm }}v{{ . }}{{ end }}{{ with .Mips }}_{{ . }}{{ end }}{{ if not (eq .Amd64 "v1") }}{{ .Amd64 }}{{ end }}'
-nfpms:
-  - id: package
-    package_name: sing-box
-    file_name_template: '{{ .ProjectName }}_{{ .Version }}_{{ .Os }}_{{ .Arch }}{{ with .Arm }}v{{ . }}{{ end }}{{ with .Mips }}_{{ . }}{{ end }}{{ if not (eq .Amd64 "v1") }}{{ .Amd64 }}{{ end }}'
-    vendor: sagernet
-    homepage: https://sing-box.sagernet.org/
-    maintainer: nekohasekai <contact-git@sekai.icu>
-    description: The universal proxy platform.
-    license: GPLv3 or later
-    formats:
-      - deb
-      - rpm
-    priority: extra
-    contents:
-      - src: release/config/config.json
-        dst: /etc/sing-box/config.json
-        type: config
-      - src: release/config/sing-box.service
-        dst: /etc/systemd/system/sing-box.service
-      - src: release/config/sing-box@.service
-        dst: /etc/systemd/system/sing-box@.service
-      - src: LICENSE
-        dst: /usr/share/licenses/sing-box/LICENSE
-source:
-  enabled: false
-  name_template: '{{ .ProjectName }}-{{ .Version }}.source'
-  prefix_template: '{{ .ProjectName }}-{{ .Version }}/'
-checksum:
-  disable: true
-  name_template: '{{ .ProjectName }}-{{ .Version }}.checksum'
-signs:
-  - artifacts: checksum
-release:
-  github:
-    owner: SagerNet
-    name: sing-box
-  name_template: '{{ if .IsSnapshot }}{{ nightly }}{{ else }}{{ .Version }}{{ end }}'
-  draft: true
-  mode: replace

Dockerfile

@@ -1,23 +0,0 @@
-FROM golang:1.20-alpine AS builder
-LABEL maintainer="nekohasekai <contact-git@sekai.icu>"
-COPY . /go/src/github.com/sagernet/sing-box
-WORKDIR /go/src/github.com/sagernet/sing-box
-ARG GOPROXY=""
-ENV GOPROXY ${GOPROXY}
-ENV CGO_ENABLED=0
-RUN set -ex \
-    && apk add git build-base \
-    && export COMMIT=$(git rev-parse --short HEAD) \
-    && export VERSION=$(go run ./cmd/internal/read_tag) \
-    && go build -v -trimpath -tags with_gvisor,with_quic,with_wireguard,with_utls,with_reality_server,with_clash_api,with_acme \
-        -o /go/bin/sing-box \
-        -ldflags "-X \"github.com/sagernet/sing-box/constant.Version=$VERSION\" -s -w -buildid=" \
-        ./cmd/sing-box
-FROM alpine AS dist
-LABEL maintainer="nekohasekai <contact-git@sekai.icu>"
-RUN set -ex \
-    && apk upgrade \
-    && apk add bash tzdata ca-certificates \
-    && rm -rf /var/cache/apk/*
-COPY --from=builder /go/bin/sing-box /usr/local/bin/sing-box
-ENTRYPOINT ["sing-box"]

LICENSE

@@ -11,7 +11,4 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
-along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-In addition, no derivative work may use the name or imply association
-with this application without prior consent.
+along with this program. If not, see <http://www.gnu.org/licenses/>.

Makefile

@@ -1,92 +1,46 @@
-NAME = sing-box
-COMMIT = $(shell git rev-parse --short HEAD)
-TAGS ?= with_gvisor,with_quic,with_wireguard,with_utls,with_reality_server,with_clash_api
-TAGS_TEST ?= with_gvisor,with_quic,with_wireguard,with_grpc,with_ech,with_utls,with_reality_server,with_shadowsocksr
+NAME=sing-box
+COMMIT=$(shell git rev-parse --short HEAD)
+PARAMS=-trimpath -tags '$(TAGS)' -ldflags \
+		'-X "github.com/sagernet/sing-box/constant.Commit=$(COMMIT)" \
+		-w -s -buildid='
+MAIN=./cmd/sing-box
 
-GOHOSTOS = $(shell go env GOHOSTOS)
-GOHOSTARCH = $(shell go env GOHOSTARCH)
-VERSION=$(shell CGO_ENABLED=0 GOOS=$(GOHOSTOS) GOARCH=$(GOHOSTARCH) go run ./cmd/internal/read_tag)
-
-PARAMS = -v -trimpath -tags "$(TAGS)" -ldflags "-X 'github.com/sagernet/sing-box/constant.Version=$(VERSION)' -s -w -buildid="
-MAIN = ./cmd/sing-box
-PREFIX ?= $(shell go env GOPATH)
-
-.PHONY: test release
+.PHONY: test
 
 build:
 	go build $(PARAMS) $(MAIN)
 
-install:
-	go build -o $(PREFIX)/bin/$(NAME) $(PARAMS) $(MAIN)
+action_version: build
+	echo "::set-output name=VERSION::`./sing-box version -n`"
 
-fmt:
-	@gofumpt -l -w .
-	@gofmt -s -w .
-	@gci write --custom-order -s "standard,prefix(github.com/sagernet/),default" .
+install:
+	go install $(PARAMS) $(MAIN)
 
 fmt_install:
 	go install -v mvdan.cc/gofumpt@latest
-	go install -v github.com/daixiang0/gci@latest
+	go install -v github.com/daixiang0/gci@v0.4.0
+
+fmt:
+	gofumpt -l -w .
+	gofmt -s -w .
+	gci write -s "standard,prefix(github.com/sagernet/),default" .
+
+lint_install:
+	go install github.com/golangci/golangci-lint/cmd/golangci-lint@latest
 
 lint:
 	GOOS=linux golangci-lint run ./...
-	GOOS=android golangci-lint run ./...
 	GOOS=windows golangci-lint run ./...
 	GOOS=darwin golangci-lint run ./...
 	GOOS=freebsd golangci-lint run ./...
 
-lint_install:
-	go install -v github.com/golangci/golangci-lint/cmd/golangci-lint@latest
-
-proto:
-	@go run ./cmd/internal/protogen
-	@gofumpt -l -w .
-	@gofumpt -l -w .
-
-proto_install:
-	go install -v google.golang.org/protobuf/cmd/protoc-gen-go@latest
-	go install -v google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest
-
-snapshot:
-	go run ./cmd/internal/build goreleaser release --rm-dist --snapshot || exit 1
-	mkdir dist/release
-	mv dist/*.tar.gz dist/*.zip dist/*.deb dist/*.rpm dist/release
-	ghr --delete --draft --prerelease -p 1 nightly dist/release
-	rm -r dist
-
-release:
-	go run ./cmd/internal/build goreleaser release --rm-dist --skip-publish || exit 1
-	mkdir dist/release
-	mv dist/*.tar.gz dist/*.zip dist/*.deb dist/*.rpm dist/release
-	ghr --delete --draft --prerelease -p 3 $(shell git describe --tags) dist/release
-	rm -r dist
-
-release_install:
-	go install -v github.com/goreleaser/goreleaser@latest
-	go install -v github.com/tcnksm/ghr@latest
-
 test:
-	@go test -v ./... && \
-	cd test && \
-	go mod tidy && \
-	go test -v -tags "$(TAGS_TEST)" .
-
-test_stdio:
-	@go test -v ./... && \
-	cd test && \
-	go mod tidy && \
-	go test -v -tags "$(TAGS_TEST),force_stdio" .
-
-lib:
-	go run ./cmd/internal/build_libbox
-
-lib_install:
-	go get -v -d
-	go install -v github.com/sagernet/gomobile/cmd/gomobile@v0.0.0-20221130124640-349ebaa752ca
-	go install -v github.com/sagernet/gomobile/cmd/gobind@v0.0.0-20221130124640-349ebaa752ca
+	go test -v . && \
+	pushd test && \
+	go test -v . && \
+	popd
 
 clean:
-	rm -rf bin dist sing-box
 	rm -f $(shell go env GOPATH)/sing-box
 
 update:

README.md

@@ -2,8 +2,6 @@
 
 The universal proxy platform.
 
-[![Packaging status](https://repology.org/badge/vertical-allrepos/sing-box.svg)](https://repology.org/project/sing-box/versions)
-
 ## Documentation
 
 https://sing-box.sagernet.org
@@ -25,7 +23,4 @@ GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-In addition, no derivative work may use the name or imply association
-with this application without prior consent.
 ```

adapter/experimental.go

@@ -4,32 +4,23 @@ import (
 	"context"
 	"net"
 
-	"github.com/sagernet/sing-box/common/urltest"
 	N "github.com/sagernet/sing/common/network"
 )
 
 type ClashServer interface {
 	Service
-	PreStarter
-	Mode() string
-	StoreSelected() bool
-	StoreFakeIP() bool
-	CacheFile() ClashCacheFile
-	HistoryStorage() *urltest.HistoryStorage
-	RoutedConnection(ctx context.Context, conn net.Conn, metadata InboundContext, matchedRule Rule) (net.Conn, Tracker)
-	RoutedPacketConnection(ctx context.Context, conn N.PacketConn, metadata InboundContext, matchedRule Rule) (N.PacketConn, Tracker)
-}
-
-type ClashCacheFile interface {
-	LoadSelected(group string) string
-	StoreSelected(group string, selected string) error
-	FakeIPStorage
+	TrafficController
 }
 
 type Tracker interface {
 	Leave()
 }
 
+type TrafficController interface {
+	RoutedConnection(ctx context.Context, conn net.Conn, metadata InboundContext, matchedRule Rule) (net.Conn, Tracker)
+	RoutedPacketConnection(ctx context.Context, conn N.PacketConn, metadata InboundContext, matchedRule Rule) (N.PacketConn, Tracker)
+}
+
 type OutboundGroup interface {
 	Now() string
 	All() []string
@@ -41,13 +32,3 @@ func OutboundTag(detour Outbound) string {
 	}
 	return detour.Tag()
 }
-
-type V2RayServer interface {
-	Service
-	StatsService() V2RayStatsService
-}
-
-type V2RayStatsService interface {
-	RoutedConnection(inbound string, outbound string, user string, conn net.Conn) net.Conn
-	RoutedPacketConnection(inbound string, outbound string, user string, conn N.PacketConn) N.PacketConn
-}

adapter/fakeip.go

@@ -1,23 +0,0 @@
-package adapter
-
-import (
-	"net/netip"
-
-	"github.com/sagernet/sing-dns"
-)
-
-type FakeIPStore interface {
-	Service
-	Contains(address netip.Addr) bool
-	Create(domain string, strategy dns.DomainStrategy) (netip.Addr, error)
-	Lookup(address netip.Addr) (string, bool)
-	Reset() error
-}
-
-type FakeIPStorage interface {
-	FakeIPMetadata() *FakeIPMetadata
-	FakeIPSaveMetadata(metadata *FakeIPMetadata) error
-	FakeIPStore(address netip.Addr, domain string) error
-	FakeIPLoad(address netip.Addr) (string, bool)
-	FakeIPReset() error
-}

adapter/fakeip_metadata.go

@@ -1,50 +0,0 @@
-package adapter
-
-import (
-	"bytes"
-	"encoding"
-	"encoding/binary"
-	"io"
-	"net/netip"
-
-	"github.com/sagernet/sing/common"
-)
-
-type FakeIPMetadata struct {
-	Inet4Range   netip.Prefix
-	Inet6Range   netip.Prefix
-	Inet4Current netip.Addr
-	Inet6Current netip.Addr
-}
-
-func (m *FakeIPMetadata) MarshalBinary() (data []byte, err error) {
-	var buffer bytes.Buffer
-	for _, marshaler := range []encoding.BinaryMarshaler{m.Inet4Range, m.Inet6Range, m.Inet4Current, m.Inet6Current} {
-		data, err = marshaler.MarshalBinary()
-		if err != nil {
-			return
-		}
-		common.Must(binary.Write(&buffer, binary.BigEndian, uint16(len(data))))
-		buffer.Write(data)
-	}
-	data = buffer.Bytes()
-	return
-}
-
-func (m *FakeIPMetadata) UnmarshalBinary(data []byte) error {
-	reader := bytes.NewReader(data)
-	for _, unmarshaler := range []encoding.BinaryUnmarshaler{&m.Inet4Range, &m.Inet6Range, &m.Inet4Current, &m.Inet6Current} {
-		var length uint16
-		common.Must(binary.Read(reader, binary.BigEndian, &length))
-		element := make([]byte, length)
-		_, err := io.ReadFull(reader, element)
-		if err != nil {
-			return err
-		}
-		err = unmarshaler.UnmarshalBinary(element)
-		if err != nil {
-			return err
-		}
-	}
-	return nil
-}

adapter/inbound.go

@@ -2,13 +2,11 @@ package adapter
 
 import (
 	"context"
-	"net"
 	"net/netip"
 
 	"github.com/sagernet/sing-box/common/process"
-	"github.com/sagernet/sing-box/option"
+	"github.com/sagernet/sing-dns"
 	M "github.com/sagernet/sing/common/metadata"
-	N "github.com/sagernet/sing/common/network"
 )
 
 type Inbound interface {
@@ -17,17 +15,9 @@ type Inbound interface {
 	Tag() string
 }
 
-type InjectableInbound interface {
-	Inbound
-	Network() []string
-	NewConnection(ctx context.Context, conn net.Conn, metadata InboundContext) error
-	NewPacketConnection(ctx context.Context, conn N.PacketConn, metadata InboundContext) error
-}
-
 type InboundContext struct {
 	Inbound     string
 	InboundType string
-	IPVersion   uint8
 	Network     string
 	Source      M.Socksaddr
 	Destination M.Socksaddr
@@ -38,18 +28,14 @@ type InboundContext struct {
 
 	// cache
 
-	InboundDetour        string
-	LastInbound          string
-	OriginDestination    M.Socksaddr
-	InboundOptions       option.InboundOptions
-	DestinationAddresses []netip.Addr
-	SourceGeoIPCode      string
-	GeoIPCode            string
-	ProcessInfo          *process.Info
+	DomainStrategy           dns.DomainStrategy
+	SniffEnabled             bool
+	SniffOverrideDestination bool
+	DestinationAddresses     []netip.Addr
 
-	// dns cache
-
-	QueryType uint16
+	SourceGeoIPCode string
+	GeoIPCode       string
+	ProcessInfo     *process.Info
 }
 
 type inboundContextKey struct{}

adapter/outbound.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"net"
 
-	"github.com/sagernet/sing-tun"
 	N "github.com/sagernet/sing/common/network"
 )
 
@@ -18,8 +17,3 @@ type Outbound interface {
 	NewConnection(ctx context.Context, conn net.Conn, metadata InboundContext) error
 	NewPacketConnection(ctx context.Context, conn N.PacketConn, metadata InboundContext) error
 }
-
-type IPOutbound interface {
-	Outbound
-	NewIPConnection(ctx context.Context, conn tun.RouteContext, metadata InboundContext) (tun.DirectDestination, error)
-}

adapter/prestart.go

@@ -1,15 +0,0 @@
-package adapter
-
-type PreStarter interface {
-	PreStart() error
-}
-
-func PreStart(starter any) error {
-	if preService, ok := starter.(PreStarter); ok {
-		err := preService.PreStart()
-		if err != nil {
-			return err
-		}
-	}
-	return nil
-}

adapter/router.go

@@ -11,7 +11,7 @@ import (
 	"github.com/sagernet/sing/common/control"
 	N "github.com/sagernet/sing/common/network"
 
-	mdns "github.com/miekg/dns"
+	"golang.org/x/net/dns/dnsmessage"
 )
 
 type Router interface {
@@ -21,54 +21,24 @@ type Router interface {
 	Outbound(tag string) (Outbound, bool)
 	DefaultOutbound(network string) Outbound
 
-	FakeIPStore() FakeIPStore
-
 	RouteConnection(ctx context.Context, conn net.Conn, metadata InboundContext) error
 	RoutePacketConnection(ctx context.Context, conn N.PacketConn, metadata InboundContext) error
-	RouteIPConnection(ctx context.Context, conn tun.RouteContext, metadata InboundContext) tun.RouteAction
-
-	NatRequired(outbound string) bool
 
 	GeoIPReader() *geoip.Reader
 	LoadGeosite(code string) (Rule, error)
 
-	Exchange(ctx context.Context, message *mdns.Msg) (*mdns.Msg, error)
+	Exchange(ctx context.Context, message *dnsmessage.Message) (*dnsmessage.Message, error)
 	Lookup(ctx context.Context, domain string, strategy dns.DomainStrategy) ([]netip.Addr, error)
 	LookupDefault(ctx context.Context, domain string) ([]netip.Addr, error)
 
-	InterfaceFinder() control.InterfaceFinder
+	InterfaceBindManager() control.BindManager
 	DefaultInterface() string
 	AutoDetectInterface() bool
-	AutoDetectInterfaceFunc() control.Func
 	DefaultMark() int
 	NetworkMonitor() tun.NetworkUpdateMonitor
 	InterfaceMonitor() tun.DefaultInterfaceMonitor
-	PackageManager() tun.PackageManager
-
 	Rules() []Rule
-	IPRules() []IPRule
-
-	TimeService
-
-	ClashServer() ClashServer
-	SetClashServer(server ClashServer)
-
-	V2RayServer() V2RayServer
-	SetV2RayServer(server V2RayServer)
-}
-
-type routerContextKey struct{}
-
-func ContextWithRouter(ctx context.Context, router Router) context.Context {
-	return context.WithValue(ctx, (*routerContextKey)(nil), router)
-}
-
-func RouterFromContext(ctx context.Context) Router {
-	metadata := ctx.Value((*routerContextKey)(nil))
-	if metadata == nil {
-		return nil
-	}
-	return metadata.(Router)
+	SetTrafficController(controller TrafficController)
 }
 
 type Rule interface {
@@ -83,14 +53,4 @@ type Rule interface {
 type DNSRule interface {
 	Rule
 	DisableCache() bool
-	RewriteTTL() *uint32
-}
-
-type IPRule interface {
-	Rule
-	Action() tun.ActionType
-}
-
-type InterfaceUpdateListener interface {
-	InterfaceUpdated() error
 }

adapter/service.go

@@ -1,6 +1,12 @@
 package adapter
 
-type Service interface {
+import "io"
+
+type Starter interface {
 	Start() error
-	Close() error
+}
+
+type Service interface {
+	Starter
+	io.Closer
 }

adapter/time.go

@@ -1,8 +0,0 @@
-package adapter
-
-import "time"
-
-type TimeService interface {
-	Service
-	TimeFunc() func() time.Time
-}

adapter/upstream.go

@@ -38,25 +38,13 @@ type myUpstreamHandlerWrapper struct {
 }
 
 func (w *myUpstreamHandlerWrapper) NewConnection(ctx context.Context, conn net.Conn, metadata M.Metadata) error {
-	myMetadata := w.metadata
-	if metadata.Source.IsValid() {
-		myMetadata.Source = metadata.Source
-	}
-	if metadata.Destination.IsValid() {
-		myMetadata.Destination = metadata.Destination
-	}
-	return w.connectionHandler(ctx, conn, myMetadata)
+	w.metadata.Destination = metadata.Destination
+	return w.connectionHandler(ctx, conn, w.metadata)
 }
 
 func (w *myUpstreamHandlerWrapper) NewPacketConnection(ctx context.Context, conn N.PacketConn, metadata M.Metadata) error {
-	myMetadata := w.metadata
-	if metadata.Source.IsValid() {
-		myMetadata.Source = metadata.Source
-	}
-	if metadata.Destination.IsValid() {
-		myMetadata.Destination = metadata.Destination
-	}
-	return w.packetHandler(ctx, conn, myMetadata)
+	w.metadata.Destination = metadata.Destination
+	return w.packetHandler(ctx, conn, w.metadata)
 }
 
 func (w *myUpstreamHandlerWrapper) NewError(ctx context.Context, err error) {
@@ -90,23 +78,13 @@ func NewUpstreamContextHandler(
 
 func (w *myUpstreamContextHandlerWrapper) NewConnection(ctx context.Context, conn net.Conn, metadata M.Metadata) error {
 	myMetadata := ContextFrom(ctx)
-	if metadata.Source.IsValid() {
-		myMetadata.Source = metadata.Source
-	}
-	if metadata.Destination.IsValid() {
-		myMetadata.Destination = metadata.Destination
-	}
+	myMetadata.Destination = metadata.Destination
 	return w.connectionHandler(ctx, conn, *myMetadata)
 }
 
 func (w *myUpstreamContextHandlerWrapper) NewPacketConnection(ctx context.Context, conn N.PacketConn, metadata M.Metadata) error {
 	myMetadata := ContextFrom(ctx)
-	if metadata.Source.IsValid() {
-		myMetadata.Source = metadata.Source
-	}
-	if metadata.Destination.IsValid() {
-		myMetadata.Destination = metadata.Destination
-	}
+	myMetadata.Destination = metadata.Destination
 	return w.packetHandler(ctx, conn, *myMetadata)
 }
 

adapter/v2ray.go

@@ -1,27 +0,0 @@
-package adapter
-
-import (
-	"context"
-	"net"
-
-	E "github.com/sagernet/sing/common/exceptions"
-	M "github.com/sagernet/sing/common/metadata"
-	N "github.com/sagernet/sing/common/network"
-)
-
-type V2RayServerTransport interface {
-	Network() []string
-	Serve(listener net.Listener) error
-	ServePacket(listener net.PacketConn) error
-	Close() error
-}
-
-type V2RayServerTransportHandler interface {
-	N.TCPConnectionHandler
-	E.Handler
-	FallbackConnection(ctx context.Context, conn net.Conn, metadata M.Metadata) error
-}
-
-type V2RayClientTransport interface {
-	DialContext(ctx context.Context) (net.Conn, error)
-}

box.go

@@ -2,15 +2,12 @@ package box
 
 import (
 	"context"
-	"fmt"
 	"io"
 	"os"
-	"runtime/debug"
 	"time"
 
 	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-box/experimental"
-	"github.com/sagernet/sing-box/experimental/libbox/platform"
 	"github.com/sagernet/sing-box/inbound"
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
@@ -24,61 +21,77 @@ import (
 var _ adapter.Service = (*Box)(nil)
 
 type Box struct {
-	createdAt    time.Time
-	router       adapter.Router
-	inbounds     []adapter.Inbound
-	outbounds    []adapter.Outbound
-	logFactory   log.Factory
-	logger       log.ContextLogger
-	preServices  map[string]adapter.Service
-	postServices map[string]adapter.Service
-	done         chan struct{}
+	createdAt   time.Time
+	router      adapter.Router
+	inbounds    []adapter.Inbound
+	outbounds   []adapter.Outbound
+	logFactory  log.Factory
+	logger      log.ContextLogger
+	logFile     *os.File
+	clashServer adapter.ClashServer
+	done        chan struct{}
 }
 
-type Options struct {
-	option.Options
-	Context           context.Context
-	PlatformInterface platform.Interface
-}
-
-func New(options Options) (*Box, error) {
-	ctx := options.Context
-	if ctx == nil {
-		ctx = context.Background()
-	}
+func New(ctx context.Context, options option.Options) (*Box, error) {
 	createdAt := time.Now()
-	experimentalOptions := common.PtrValueOrDefault(options.Experimental)
-	applyDebugOptions(common.PtrValueOrDefault(experimentalOptions.Debug))
+	logOptions := common.PtrValueOrDefault(options.Log)
+
 	var needClashAPI bool
-	var needV2RayAPI bool
-	if experimentalOptions.ClashAPI != nil && experimentalOptions.ClashAPI.ExternalController != "" {
+	if options.Experimental != nil && options.Experimental.ClashAPI != nil && options.Experimental.ClashAPI.ExternalController != "" {
 		needClashAPI = true
 	}
-	if experimentalOptions.V2RayAPI != nil && experimentalOptions.V2RayAPI.Listen != "" {
-		needV2RayAPI = true
-	}
-	var defaultLogWriter io.Writer
-	if options.PlatformInterface != nil {
-		defaultLogWriter = io.Discard
-	}
-	logFactory, err := log.New(log.Options{
-		Options:        common.PtrValueOrDefault(options.Log),
-		Observable:     needClashAPI,
-		DefaultWriter:  defaultLogWriter,
-		BaseTime:       createdAt,
-		PlatformWriter: options.PlatformInterface,
-	})
-	if err != nil {
-		return nil, E.Cause(err, "create log factory")
+
+	var logFactory log.Factory
+	var observableLogFactory log.ObservableFactory
+	var logFile *os.File
+	if logOptions.Disabled {
+		observableLogFactory = log.NewNOPFactory()
+		logFactory = observableLogFactory
+	} else {
+		var logWriter io.Writer
+		switch logOptions.Output {
+		case "", "stderr":
+			logWriter = os.Stderr
+		case "stdout":
+			logWriter = os.Stdout
+		default:
+			var err error
+			logFile, err = os.OpenFile(logOptions.Output, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0o644)
+			if err != nil {
+				return nil, err
+			}
+		}
+		logFormatter := log.Formatter{
+			BaseTime:         createdAt,
+			DisableColors:    logOptions.DisableColor || logFile != nil,
+			DisableTimestamp: !logOptions.Timestamp && logFile != nil,
+			FullTimestamp:    logOptions.Timestamp,
+			TimestampFormat:  "-0700 2006-01-02 15:04:05",
+		}
+		if needClashAPI {
+			observableLogFactory = log.NewObservableFactory(logFormatter, logWriter)
+			logFactory = observableLogFactory
+		} else {
+			logFactory = log.NewFactory(logFormatter, logWriter)
+		}
+		if logOptions.Level != "" {
+			logLevel, err := log.ParseLevel(logOptions.Level)
+			if err != nil {
+				return nil, E.Cause(err, "parse log level")
+			}
+			logFactory.SetLevel(logLevel)
+		} else {
+			logFactory.SetLevel(log.LevelTrace)
+		}
 	}
+
 	router, err := route.NewRouter(
 		ctx,
-		logFactory,
+		logFactory.NewLogger("router"),
+		logFactory.NewLogger("dns"),
 		common.PtrValueOrDefault(options.Route),
 		common.PtrValueOrDefault(options.DNS),
-		common.PtrValueOrDefault(options.NTP),
 		options.Inbounds,
-		options.PlatformInterface,
 	)
 	if err != nil {
 		return nil, E.Cause(err, "parse route options")
@@ -98,7 +111,6 @@ func New(options Options) (*Box, error) {
 			router,
 			logFactory.NewLogger(F.ToString("inbound/", inboundOptions.Type, "[", tag, "]")),
 			inboundOptions,
-			options.PlatformInterface,
 		)
 		if err != nil {
 			return nil, E.Cause(err, "parse inbound[", i, "]")
@@ -117,15 +129,14 @@ func New(options Options) (*Box, error) {
 			ctx,
 			router,
 			logFactory.NewLogger(F.ToString("outbound/", outboundOptions.Type, "[", tag, "]")),
-			tag,
 			outboundOptions)
 		if err != nil {
 			return nil, E.Cause(err, "parse outbound[", i, "]")
 		}
 		outbounds = append(outbounds, out)
 	}
-	err = router.Initialize(inbounds, outbounds, func() adapter.Outbound {
-		out, oErr := outbound.New(ctx, router, logFactory.NewLogger("outbound/direct"), "direct", option.Outbound{Type: "direct", Tag: "default"})
+	err = router.Initialize(outbounds, func() adapter.Outbound {
+		out, oErr := outbound.New(ctx, router, logFactory.NewLogger("outbound/direct"), option.Outbound{Type: "direct", Tag: "default"})
 		common.Must(oErr)
 		outbounds = append(outbounds, out)
 		return out
@@ -133,133 +144,49 @@ func New(options Options) (*Box, error) {
 	if err != nil {
 		return nil, err
 	}
-	preServices := make(map[string]adapter.Service)
-	postServices := make(map[string]adapter.Service)
+
+	var clashServer adapter.ClashServer
 	if needClashAPI {
-		clashServer, err := experimental.NewClashServer(router, logFactory.(log.ObservableFactory), common.PtrValueOrDefault(options.Experimental.ClashAPI))
+		clashServer, err = experimental.NewClashServer(router, observableLogFactory, common.PtrValueOrDefault(options.Experimental.ClashAPI))
 		if err != nil {
 			return nil, E.Cause(err, "create clash api server")
 		}
-		router.SetClashServer(clashServer)
-		preServices["clash api"] = clashServer
-	}
-	if needV2RayAPI {
-		v2rayServer, err := experimental.NewV2RayServer(logFactory.NewLogger("v2ray-api"), common.PtrValueOrDefault(options.Experimental.V2RayAPI))
-		if err != nil {
-			return nil, E.Cause(err, "create v2ray api server")
-		}
-		router.SetV2RayServer(v2rayServer)
-		preServices["v2ray api"] = v2rayServer
+		router.SetTrafficController(clashServer)
 	}
 	return &Box{
-		router:       router,
-		inbounds:     inbounds,
-		outbounds:    outbounds,
-		createdAt:    createdAt,
-		logFactory:   logFactory,
-		logger:       logFactory.Logger(),
-		preServices:  preServices,
-		postServices: postServices,
-		done:         make(chan struct{}),
+		router:      router,
+		inbounds:    inbounds,
+		outbounds:   outbounds,
+		createdAt:   createdAt,
+		logFactory:  logFactory,
+		logger:      logFactory.NewLogger(""),
+		logFile:     logFile,
+		clashServer: clashServer,
+		done:        make(chan struct{}),
 	}, nil
 }
 
-func (s *Box) PreStart() error {
-	err := s.preStart()
-	if err != nil {
-		// TODO: remove catch error
-		defer func() {
-			v := recover()
-			if v != nil {
-				log.Error(E.Cause(err, "origin error"))
-				debug.PrintStack()
-				panic("panic on early close: " + fmt.Sprint(v))
-			}
-		}()
-		s.Close()
-		return err
-	}
-	s.logger.Info("sing-box pre-started (", F.Seconds(time.Since(s.createdAt).Seconds()), "s)")
-	return nil
-}
-
 func (s *Box) Start() error {
-	err := s.start()
-	if err != nil {
-		// TODO: remove catch error
-		defer func() {
-			v := recover()
-			if v != nil {
-				log.Error(E.Cause(err, "origin error"))
-				debug.PrintStack()
-				panic("panic on early close: " + fmt.Sprint(v))
-			}
-		}()
-		s.Close()
-		return err
-	}
-	s.logger.Info("sing-box started (", F.Seconds(time.Since(s.createdAt).Seconds()), "s)")
-	return nil
-}
-
-func (s *Box) preStart() error {
-	for serviceName, service := range s.preServices {
-		s.logger.Trace("pre-start ", serviceName)
-		err := adapter.PreStart(service)
-		if err != nil {
-			return E.Cause(err, "pre-starting ", serviceName)
-		}
-	}
-	for i, out := range s.outbounds {
-		var tag string
-		if out.Tag() == "" {
-			tag = F.ToString(i)
-		} else {
-			tag = out.Tag()
-		}
-		if starter, isStarter := out.(common.Starter); isStarter {
-			s.logger.Trace("initializing outbound/", out.Type(), "[", tag, "]")
-			err := starter.Start()
-			if err != nil {
-				return E.Cause(err, "initialize outbound/", out.Type(), "[", tag, "]")
-			}
-		}
-	}
-	return s.router.Start()
-}
-
-func (s *Box) start() error {
-	err := s.preStart()
+	err := s.router.Start()
 	if err != nil {
 		return err
 	}
-	for serviceName, service := range s.preServices {
-		s.logger.Trace("starting ", serviceName)
-		err = service.Start()
-		if err != nil {
-			return E.Cause(err, "start ", serviceName)
-		}
-	}
 	for i, in := range s.inbounds {
-		var tag string
-		if in.Tag() == "" {
-			tag = F.ToString(i)
-		} else {
-			tag = in.Tag()
-		}
-		s.logger.Trace("initializing inbound/", in.Type(), "[", tag, "]")
 		err = in.Start()
 		if err != nil {
-			return E.Cause(err, "initialize inbound/", in.Type(), "[", tag, "]")
+			for g := 0; g < i; g++ {
+				s.inbounds[g].Close()
+			}
+			return err
 		}
 	}
-	for serviceName, service := range s.postServices {
-		s.logger.Trace("starting ", service)
-		err = service.Start()
+	if s.clashServer != nil {
+		err = s.clashServer.Start()
 		if err != nil {
-			return E.Cause(err, "start ", serviceName)
+			return E.Cause(err, "start clash api server")
 		}
 	}
+	s.logger.Info("sing-box started (", F.Seconds(time.Since(s.createdAt).Seconds()), "s)")
 	return nil
 }
 
@@ -270,46 +197,16 @@ func (s *Box) Close() error {
 	default:
 		close(s.done)
 	}
-	var errors error
-	for serviceName, service := range s.postServices {
-		s.logger.Trace("closing ", serviceName)
-		errors = E.Append(errors, service.Close(), func(err error) error {
-			return E.Cause(err, "close ", serviceName)
-		})
+	for _, in := range s.inbounds {
+		in.Close()
 	}
-	for i, in := range s.inbounds {
-		s.logger.Trace("closing inbound/", in.Type(), "[", i, "]")
-		errors = E.Append(errors, in.Close(), func(err error) error {
-			return E.Cause(err, "close inbound/", in.Type(), "[", i, "]")
-		})
+	for _, out := range s.outbounds {
+		common.Close(out)
 	}
-	for i, out := range s.outbounds {
-		s.logger.Trace("closing outbound/", out.Type(), "[", i, "]")
-		errors = E.Append(errors, common.Close(out), func(err error) error {
-			return E.Cause(err, "close outbound/", out.Type(), "[", i, "]")
-		})
-	}
-	s.logger.Trace("closing router")
-	if err := common.Close(s.router); err != nil {
-		errors = E.Append(errors, err, func(err error) error {
-			return E.Cause(err, "close router")
-		})
-	}
-	for serviceName, service := range s.preServices {
-		s.logger.Trace("closing ", serviceName)
-		errors = E.Append(errors, service.Close(), func(err error) error {
-			return E.Cause(err, "close ", serviceName)
-		})
-	}
-	s.logger.Trace("closing log factory")
-	if err := common.Close(s.logFactory); err != nil {
-		errors = E.Append(errors, err, func(err error) error {
-			return E.Cause(err, "close log factory")
-		})
-	}
-	return errors
-}
-
-func (s *Box) Router() adapter.Router {
-	return s.router
+	return common.Close(
+		s.router,
+		s.logFactory,
+		s.clashServer,
+		common.PtrOrNil(s.logFile),
+	)
 }

cmd/internal/build/main.go

@@ -1,21 +0,0 @@
-package main
-
-import (
-	"os"
-	"os/exec"
-
-	"github.com/sagernet/sing-box/cmd/internal/build_shared"
-	"github.com/sagernet/sing-box/log"
-)
-
-func main() {
-	build_shared.FindSDK()
-
-	command := exec.Command(os.Args[1], os.Args[2:]...)
-	command.Stdout = os.Stdout
-	command.Stderr = os.Stderr
-	err := command.Run()
-	if err != nil {
-		log.Fatal(err)
-	}
-}

cmd/internal/build_libbox/main.go

@@ -1,136 +0,0 @@
-package main
-
-import (
-	"flag"
-	"os"
-	"os/exec"
-	"path/filepath"
-
-	_ "github.com/sagernet/gomobile/event/key"
-	"github.com/sagernet/sing-box/cmd/internal/build_shared"
-	"github.com/sagernet/sing-box/log"
-	"github.com/sagernet/sing/common/rw"
-)
-
-var (
-	debugEnabled bool
-	target       string
-)
-
-func init() {
-	flag.BoolVar(&debugEnabled, "debug", false, "enable debug")
-	flag.StringVar(&target, "target", "android", "target platform")
-}
-
-func main() {
-	flag.Parse()
-
-	build_shared.FindMobile()
-
-	switch target {
-	case "android":
-		buildAndroid()
-	case "ios":
-		buildiOS()
-	}
-}
-
-var (
-	sharedFlags []string
-	debugFlags  []string
-)
-
-func init() {
-	sharedFlags = append(sharedFlags, "-trimpath")
-	sharedFlags = append(sharedFlags, "-ldflags")
-
-	currentTag, err := build_shared.ReadTag()
-	if err != nil {
-		currentTag = "unknown"
-	}
-	sharedFlags = append(sharedFlags, "-X github.com/sagernet/sing-box/constant.Version="+currentTag+" -s -w -buildid=")
-	debugFlags = append(debugFlags, "-X github.com/sagernet/sing-box/constant.Version="+currentTag)
-}
-
-func buildAndroid() {
-	build_shared.FindSDK()
-
-	args := []string{
-		"bind",
-		"-v",
-		"-androidapi", "21",
-		"-javapkg=io.nekohasekai",
-		"-libname=box",
-	}
-	if !debugEnabled {
-		args = append(args, sharedFlags...)
-	} else {
-		args = append(args, debugFlags...)
-	}
-
-	args = append(args, "-tags")
-	if !debugEnabled {
-		args = append(args, "with_gvisor,with_quic,with_wireguard,with_utls,with_clash_api")
-	} else {
-		args = append(args, "with_gvisor,with_quic,with_wireguard,with_utls,with_clash_api,debug")
-	}
-	args = append(args, "./experimental/libbox")
-
-	command := exec.Command(build_shared.GoBinPath+"/gomobile", args...)
-	command.Stdout = os.Stdout
-	command.Stderr = os.Stderr
-	err := command.Run()
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	const name = "libbox.aar"
-	copyPath := filepath.Join("..", "sing-box-for-android", "app", "libs")
-	if rw.FileExists(copyPath) {
-		copyPath, _ = filepath.Abs(copyPath)
-		err = rw.CopyFile(name, filepath.Join(copyPath, name))
-		if err != nil {
-			log.Fatal(err)
-		}
-		log.Info("copied to ", copyPath)
-	}
-}
-
-func buildiOS() {
-	args := []string{
-		"bind",
-		"-v",
-		"-target", "ios,iossimulator,macos",
-		"-libname=box",
-	}
-	if !debugEnabled {
-		args = append(args, sharedFlags...)
-	} else {
-		args = append(args, debugFlags...)
-	}
-
-	args = append(args, "-tags")
-	if !debugEnabled {
-		args = append(args, "with_gvisor,with_quic,with_utls,with_clash_api,with_low_memory,with_conntrack")
-	} else {
-		args = append(args, "with_gvisor,with_quic,with_utls,with_clash_api,with_low_memory,with_conntrack,debug")
-	}
-	args = append(args, "./experimental/libbox")
-
-	command := exec.Command(build_shared.GoBinPath+"/gomobile", args...)
-	command.Stdout = os.Stdout
-	command.Stderr = os.Stderr
-	err := command.Run()
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	copyPath := filepath.Join("..", "sing-box-for-ios")
-	if rw.FileExists(copyPath) {
-		targetDir := filepath.Join(copyPath, "Libbox.xcframework")
-		targetDir, _ = filepath.Abs(targetDir)
-		os.RemoveAll(targetDir)
-		os.Rename("Libbox.xcframework", targetDir)
-		log.Info("copied to ", targetDir)
-	}
-}

cmd/internal/build_shared/sdk.go

@@ -1,92 +0,0 @@
-package build_shared
-
-import (
-	"go/build"
-	"os"
-	"path/filepath"
-	"runtime"
-	"sort"
-	"strconv"
-	"strings"
-
-	"github.com/sagernet/sing-box/log"
-	"github.com/sagernet/sing/common"
-	"github.com/sagernet/sing/common/rw"
-)
-
-var (
-	androidSDKPath string
-	androidNDKPath string
-)
-
-func FindSDK() {
-	searchPath := []string{
-		"$ANDROID_HOME",
-		"$HOME/Android/Sdk",
-		"$HOME/.local/lib/android/sdk",
-		"$HOME/Library/Android/sdk",
-	}
-	for _, path := range searchPath {
-		path = os.ExpandEnv(path)
-		if rw.FileExists(path + "/licenses/android-sdk-license") {
-			androidSDKPath = path
-			break
-		}
-	}
-	if androidSDKPath == "" {
-		log.Fatal("android SDK not found")
-	}
-	if !findNDK() {
-		log.Fatal("android NDK not found")
-	}
-
-	os.Setenv("ANDROID_HOME", androidSDKPath)
-	os.Setenv("ANDROID_SDK_HOME", androidSDKPath)
-	os.Setenv("ANDROID_NDK_HOME", androidNDKPath)
-	os.Setenv("NDK", androidNDKPath)
-	os.Setenv("PATH", os.Getenv("PATH")+":"+filepath.Join(androidNDKPath, "toolchains", "llvm", "prebuilt", runtime.GOOS+"-x86_64", "bin"))
-}
-
-func findNDK() bool {
-	if rw.FileExists(androidSDKPath + "/ndk/25.1.8937393") {
-		androidNDKPath = androidSDKPath + "/ndk/25.1.8937393"
-		return true
-	}
-	ndkVersions, err := os.ReadDir(androidSDKPath + "/ndk")
-	if err != nil {
-		return false
-	}
-	versionNames := common.Map(ndkVersions, os.DirEntry.Name)
-	if len(versionNames) == 0 {
-		return false
-	}
-	sort.Slice(versionNames, func(i, j int) bool {
-		iVersions := strings.Split(versionNames[i], ".")
-		jVersions := strings.Split(versionNames[j], ".")
-		for k := 0; k < len(iVersions) && k < len(jVersions); k++ {
-			iVersion, _ := strconv.Atoi(iVersions[k])
-			jVersion, _ := strconv.Atoi(jVersions[k])
-			if iVersion != jVersion {
-				return iVersion > jVersion
-			}
-		}
-		return true
-	})
-	for _, versionName := range versionNames {
-		if rw.FileExists(androidSDKPath + "/ndk/" + versionName) {
-			androidNDKPath = androidSDKPath + "/ndk/" + versionName
-			return true
-		}
-	}
-	return false
-}
-
-var GoBinPath string
-
-func FindMobile() {
-	goBin := filepath.Join(build.Default.GOPATH, "bin")
-	if !rw.FileExists(goBin + "/" + "gobind") {
-		log.Fatal("missing gomobile installation")
-	}
-	GoBinPath = goBin
-}

cmd/internal/build_shared/tag.go

@@ -1,16 +0,0 @@
-package build_shared
-
-import "github.com/sagernet/sing/common/shell"
-
-func ReadTag() (string, error) {
-	currentTag, err := shell.Exec("git", "describe", "--tags").ReadOutput()
-	if err != nil {
-		return currentTag, err
-	}
-	currentTagRev, _ := shell.Exec("git", "describe", "--tags", "--abbrev=0").ReadOutput()
-	if currentTagRev == currentTag {
-		return currentTag[1:], nil
-	}
-	shortCommit, _ := shell.Exec("git", "rev-parse", "--short", "HEAD").ReadOutput()
-	return currentTagRev[1:] + "-" + shortCommit, nil
-}

cmd/internal/protogen/main.go

@@ -1,218 +0,0 @@
-package main
-
-import (
-	"bufio"
-	"bytes"
-	"fmt"
-	"go/build"
-	"io"
-	"os"
-	"os/exec"
-	"path/filepath"
-	"runtime"
-	"strings"
-)
-
-// envFile returns the name of the Go environment configuration file.
-// Copy from https://github.com/golang/go/blob/c4f2a9788a7be04daf931ac54382fbe2cb754938/src/cmd/go/internal/cfg/cfg.go#L150-L166
-func envFile() (string, error) {
-	if file := os.Getenv("GOENV"); file != "" {
-		if file == "off" {
-			return "", fmt.Errorf("GOENV=off")
-		}
-		return file, nil
-	}
-	dir, err := os.UserConfigDir()
-	if err != nil {
-		return "", err
-	}
-	if dir == "" {
-		return "", fmt.Errorf("missing user-config dir")
-	}
-	return filepath.Join(dir, "go", "env"), nil
-}
-
-// GetRuntimeEnv returns the value of runtime environment variable,
-// that is set by running following command: `go env -w key=value`.
-func GetRuntimeEnv(key string) (string, error) {
-	file, err := envFile()
-	if err != nil {
-		return "", err
-	}
-	if file == "" {
-		return "", fmt.Errorf("missing runtime env file")
-	}
-	var data []byte
-	var runtimeEnv string
-	data, readErr := os.ReadFile(file)
-	if readErr != nil {
-		return "", readErr
-	}
-	envStrings := strings.Split(string(data), "\n")
-	for _, envItem := range envStrings {
-		envItem = strings.TrimSuffix(envItem, "\r")
-		envKeyValue := strings.Split(envItem, "=")
-		if strings.EqualFold(strings.TrimSpace(envKeyValue[0]), key) {
-			runtimeEnv = strings.TrimSpace(envKeyValue[1])
-		}
-	}
-	return runtimeEnv, nil
-}
-
-// GetGOBIN returns GOBIN environment variable as a string. It will NOT be empty.
-func GetGOBIN() string {
-	// The one set by user explicitly by `export GOBIN=/path` or `env GOBIN=/path command`
-	GOBIN := os.Getenv("GOBIN")
-	if GOBIN == "" {
-		var err error
-		// The one set by user by running `go env -w GOBIN=/path`
-		GOBIN, err = GetRuntimeEnv("GOBIN")
-		if err != nil {
-			// The default one that Golang uses
-			return filepath.Join(build.Default.GOPATH, "bin")
-		}
-		if GOBIN == "" {
-			return filepath.Join(build.Default.GOPATH, "bin")
-		}
-		return GOBIN
-	}
-	return GOBIN
-}
-
-func main() {
-	pwd, err := os.Getwd()
-	if err != nil {
-		fmt.Println("Can not get current working directory.")
-		os.Exit(1)
-	}
-
-	GOBIN := GetGOBIN()
-	binPath := os.Getenv("PATH")
-	pathSlice := []string{pwd, GOBIN, binPath}
-	binPath = strings.Join(pathSlice, string(os.PathListSeparator))
-	os.Setenv("PATH", binPath)
-
-	suffix := ""
-	if runtime.GOOS == "windows" {
-		suffix = ".exe"
-	}
-
-	protoc := "protoc"
-
-	if linkPath, err := os.Readlink(protoc); err == nil {
-		protoc = linkPath
-	}
-
-	protoFilesMap := make(map[string][]string)
-	walkErr := filepath.Walk("./", func(path string, info os.FileInfo, err error) error {
-		if err != nil {
-			fmt.Println(err)
-			return err
-		}
-
-		if info.IsDir() {
-			return nil
-		}
-
-		dir := filepath.Dir(path)
-		filename := filepath.Base(path)
-		if strings.HasSuffix(filename, ".proto") &&
-			filename != "typed_message.proto" &&
-			filename != "descriptor.proto" {
-			protoFilesMap[dir] = append(protoFilesMap[dir], path)
-		}
-
-		return nil
-	})
-	if walkErr != nil {
-		fmt.Println(walkErr)
-		os.Exit(1)
-	}
-
-	for _, files := range protoFilesMap {
-		for _, relProtoFile := range files {
-			args := []string{
-				"-I", ".",
-				"--go_out", pwd,
-				"--go_opt", "paths=source_relative",
-				"--go-grpc_out", pwd,
-				"--go-grpc_opt", "paths=source_relative",
-				"--plugin", "protoc-gen-go=" + filepath.Join(GOBIN, "protoc-gen-go"+suffix),
-				"--plugin", "protoc-gen-go-grpc=" + filepath.Join(GOBIN, "protoc-gen-go-grpc"+suffix),
-			}
-			args = append(args, relProtoFile)
-			cmd := exec.Command(protoc, args...)
-			cmd.Env = append(cmd.Env, os.Environ()...)
-			output, cmdErr := cmd.CombinedOutput()
-			if len(output) > 0 {
-				fmt.Println(string(output))
-			}
-			if cmdErr != nil {
-				fmt.Println(cmdErr)
-				os.Exit(1)
-			}
-		}
-	}
-
-	normalizeWalkErr := filepath.Walk("./", func(path string, info os.FileInfo, err error) error {
-		if err != nil {
-			fmt.Println(err)
-			return err
-		}
-
-		if info.IsDir() {
-			return nil
-		}
-
-		filename := filepath.Base(path)
-		if strings.HasSuffix(filename, ".pb.go") &&
-			path != "config.pb.go" {
-			if err := NormalizeGeneratedProtoFile(path); err != nil {
-				fmt.Println(err)
-				os.Exit(1)
-			}
-		}
-
-		return nil
-	})
-	if normalizeWalkErr != nil {
-		fmt.Println(normalizeWalkErr)
-		os.Exit(1)
-	}
-}
-
-func NormalizeGeneratedProtoFile(path string) error {
-	fd, err := os.OpenFile(path, os.O_RDWR, 0o644)
-	if err != nil {
-		return err
-	}
-
-	_, err = fd.Seek(0, io.SeekStart)
-	if err != nil {
-		return err
-	}
-	out := bytes.NewBuffer(nil)
-	scanner := bufio.NewScanner(fd)
-	valid := false
-	for scanner.Scan() {
-		if !valid && !strings.HasPrefix(scanner.Text(), "package ") {
-			continue
-		}
-		valid = true
-		out.Write(scanner.Bytes())
-		out.Write([]byte("\n"))
-	}
-	_, err = fd.Seek(0, io.SeekStart)
-	if err != nil {
-		return err
-	}
-	err = fd.Truncate(0)
-	if err != nil {
-		return err
-	}
-	_, err = io.Copy(fd, bytes.NewReader(out.Bytes()))
-	if err != nil {
-		return err
-	}
-	return nil
-}

cmd/internal/read_tag/main.go

@@ -1,21 +0,0 @@
-package main
-
-import (
-	"os"
-
-	"github.com/sagernet/sing-box/cmd/internal/build_shared"
-	"github.com/sagernet/sing-box/log"
-)
-
-func main() {
-	currentTag, err := build_shared.ReadTag()
-	if err != nil {
-		log.Error(err)
-		_, err = os.Stdout.WriteString("unknown\n")
-	} else {
-		_, err = os.Stdout.WriteString(currentTag + "\n")
-	}
-	if err != nil {
-		log.Error(err)
-	}
-}

cmd/sing-box/cmd_check.go

@@ -2,9 +2,12 @@ package main
 
 import (
 	"context"
+	"os"
 
 	"github.com/sagernet/sing-box"
+	"github.com/sagernet/sing-box/common/json"
 	"github.com/sagernet/sing-box/log"
+	"github.com/sagernet/sing-box/option"
 
 	"github.com/spf13/cobra"
 )
@@ -12,32 +15,24 @@ import (
 var commandCheck = &cobra.Command{
 	Use:   "check",
 	Short: "Check configuration",
-	Run: func(cmd *cobra.Command, args []string) {
-		err := check()
-		if err != nil {
-			log.Fatal(err)
-		}
-	},
-	Args: cobra.NoArgs,
+	Run:   checkConfiguration,
+	Args:  cobra.NoArgs,
 }
 
-func init() {
-	mainCommand.AddCommand(commandCheck)
-}
-
-func check() error {
-	options, err := readConfigAndMerge()
+func checkConfiguration(cmd *cobra.Command, args []string) {
+	configContent, err := os.ReadFile(configPath)
 	if err != nil {
-		return err
+		log.Fatal("read config: ", err)
+	}
+	var options option.Options
+	err = json.Unmarshal(configContent, &options)
+	if err != nil {
+		log.Fatal("decode config: ", err)
 	}
 	ctx, cancel := context.WithCancel(context.Background())
-	instance, err := box.New(box.Options{
-		Context: ctx,
-		Options: options,
-	})
-	if err == nil {
-		instance.Close()
+	_, err = box.New(ctx, options)
+	if err != nil {
+		log.Fatal("create service: ", err)
 	}
 	cancel()
-	return err
 }

cmd/sing-box/cmd_format.go

@@ -8,7 +8,6 @@ import (
 	"github.com/sagernet/sing-box/common/json"
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
-	E "github.com/sagernet/sing/common/exceptions"
 
 	"github.com/spf13/cobra"
 )
@@ -18,92 +17,47 @@ var commandFormatFlagWrite bool
 var commandFormat = &cobra.Command{
 	Use:   "format",
 	Short: "Format configuration",
-	Run: func(cmd *cobra.Command, args []string) {
-		err := format()
-		if err != nil {
-			log.Fatal(err)
-		}
-	},
-	Args: cobra.NoArgs,
+	Run:   formatConfiguration,
+	Args:  cobra.NoArgs,
 }
 
 func init() {
 	commandFormat.Flags().BoolVarP(&commandFormatFlagWrite, "write", "w", false, "write result to (source) file instead of stdout")
-	mainCommand.AddCommand(commandFormat)
 }
 
-func format() error {
-	optionsList, err := readConfig()
-	if err != nil {
-		return err
-	}
-	for _, optionsEntry := range optionsList {
-		buffer := new(bytes.Buffer)
-		encoder := json.NewEncoder(buffer)
-		encoder.SetIndent("", "  ")
-		err = encoder.Encode(optionsEntry.options)
-		if err != nil {
-			return E.Cause(err, "encode config")
-		}
-		outputPath, _ := filepath.Abs(optionsEntry.path)
-		if !commandFormatFlagWrite {
-			if len(optionsList) > 1 {
-				os.Stdout.WriteString(outputPath + "\n")
-			}
-			os.Stdout.WriteString(buffer.String() + "\n")
-			continue
-		}
-		if bytes.Equal(optionsEntry.content, buffer.Bytes()) {
-			continue
-		}
-		output, err := os.Create(optionsEntry.path)
-		if err != nil {
-			return E.Cause(err, "open output")
-		}
-		_, err = output.Write(buffer.Bytes())
-		output.Close()
-		if err != nil {
-			return E.Cause(err, "write output")
-		}
-		os.Stderr.WriteString(outputPath + "\n")
-	}
-	return nil
-}
-
-func formatOne(configPath string) error {
+func formatConfiguration(cmd *cobra.Command, args []string) {
 	configContent, err := os.ReadFile(configPath)
 	if err != nil {
-		return E.Cause(err, "read config")
+		log.Fatal("read config: ", err)
 	}
 	var options option.Options
-	err = options.UnmarshalJSON(configContent)
+	err = json.Unmarshal(configContent, &options)
 	if err != nil {
-		return E.Cause(err, "decode config")
+		log.Fatal("decode config: ", err)
 	}
 	buffer := new(bytes.Buffer)
 	encoder := json.NewEncoder(buffer)
 	encoder.SetIndent("", "  ")
 	err = encoder.Encode(options)
 	if err != nil {
-		return E.Cause(err, "encode config")
+		log.Fatal("encode config: ", err)
 	}
 	if !commandFormatFlagWrite {
 		os.Stdout.WriteString(buffer.String() + "\n")
-		return nil
+		return
 	}
 	if bytes.Equal(configContent, buffer.Bytes()) {
-		return nil
+		return
 	}
 	output, err := os.Create(configPath)
 	if err != nil {
-		return E.Cause(err, "open output")
+		log.Fatal("open output: ", err)
 	}
 	_, err = output.Write(buffer.Bytes())
 	output.Close()
 	if err != nil {
-		return E.Cause(err, "write output")
+		log.Fatal("write output: ", err)
 	}
 	outputPath, _ := filepath.Abs(configPath)
 	os.Stderr.WriteString(outputPath + "\n")
-	return nil
 }

cmd/sing-box/cmd_generate.go

@@ -1,139 +0,0 @@
-package main
-
-import (
-	"crypto/rand"
-	"encoding/base64"
-	"encoding/hex"
-	"os"
-	"strconv"
-
-	"github.com/sagernet/sing-box/log"
-
-	"github.com/gofrs/uuid"
-	"github.com/spf13/cobra"
-	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
-)
-
-var commandGenerate = &cobra.Command{
-	Use:   "generate",
-	Short: "Generate things",
-}
-
-func init() {
-	commandGenerate.AddCommand(commandGenerateUUID)
-	commandGenerate.AddCommand(commandGenerateRandom)
-	commandGenerate.AddCommand(commandGenerateWireGuardKeyPair)
-	commandGenerate.AddCommand(commandGenerateRealityKeyPair)
-	mainCommand.AddCommand(commandGenerate)
-}
-
-var (
-	outputBase64 bool
-	outputHex    bool
-)
-
-var commandGenerateRandom = &cobra.Command{
-	Use:   "rand <length>",
-	Short: "Generate random bytes",
-	Args:  cobra.ExactArgs(1),
-	Run: func(cmd *cobra.Command, args []string) {
-		err := generateRandom(args)
-		if err != nil {
-			log.Fatal(err)
-		}
-	},
-}
-
-func init() {
-	commandGenerateRandom.Flags().BoolVar(&outputBase64, "base64", false, "Generate base64 string")
-	commandGenerateRandom.Flags().BoolVar(&outputHex, "hex", false, "Generate hex string")
-}
-
-func generateRandom(args []string) error {
-	length, err := strconv.Atoi(args[0])
-	if err != nil {
-		return err
-	}
-
-	randomBytes := make([]byte, length)
-	_, err = rand.Read(randomBytes)
-	if err != nil {
-		return err
-	}
-
-	if outputBase64 {
-		_, err = os.Stdout.WriteString(base64.StdEncoding.EncodeToString(randomBytes) + "\n")
-	} else if outputHex {
-		_, err = os.Stdout.WriteString(hex.EncodeToString(randomBytes) + "\n")
-	} else {
-		_, err = os.Stdout.Write(randomBytes)
-	}
-
-	return err
-}
-
-var commandGenerateUUID = &cobra.Command{
-	Use:   "uuid",
-	Short: "Generate UUID string",
-	Args:  cobra.NoArgs,
-	Run: func(cmd *cobra.Command, args []string) {
-		err := generateUUID()
-		if err != nil {
-			log.Fatal(err)
-		}
-	},
-}
-
-func generateUUID() error {
-	newUUID, err := uuid.NewV4()
-	if err != nil {
-		return err
-	}
-	_, err = os.Stdout.WriteString(newUUID.String() + "\n")
-	return err
-}
-
-var commandGenerateWireGuardKeyPair = &cobra.Command{
-	Use:   "wg-keypair",
-	Short: "Generate WireGuard key pair",
-	Args:  cobra.NoArgs,
-	Run: func(cmd *cobra.Command, args []string) {
-		err := generateWireGuardKey()
-		if err != nil {
-			log.Fatal(err)
-		}
-	},
-}
-
-func generateWireGuardKey() error {
-	privateKey, err := wgtypes.GeneratePrivateKey()
-	if err != nil {
-		return err
-	}
-	os.Stdout.WriteString("PrivateKey: " + privateKey.String() + "\n")
-	os.Stdout.WriteString("PublicKey: " + privateKey.PublicKey().String() + "\n")
-	return nil
-}
-
-var commandGenerateRealityKeyPair = &cobra.Command{
-	Use:   "reality-keypair",
-	Short: "Generate reality key pair",
-	Args:  cobra.NoArgs,
-	Run: func(cmd *cobra.Command, args []string) {
-		err := generateRealityKey()
-		if err != nil {
-			log.Fatal(err)
-		}
-	},
-}
-
-func generateRealityKey() error {
-	privateKey, err := wgtypes.GeneratePrivateKey()
-	if err != nil {
-		return err
-	}
-	publicKey := privateKey.PublicKey()
-	os.Stdout.WriteString("PrivateKey: " + base64.RawURLEncoding.EncodeToString(privateKey[:]) + "\n")
-	os.Stdout.WriteString("PublicKey: " + base64.RawURLEncoding.EncodeToString(publicKey[:]) + "\n")
-	return nil
-}

cmd/sing-box/cmd_run.go

@@ -2,20 +2,16 @@ package main
 
 import (
 	"context"
-	"io"
+	"net/http"
 	"os"
 	"os/signal"
-	"path/filepath"
-	runtimeDebug "runtime/debug"
-	"sort"
-	"strings"
 	"syscall"
-	"time"
 
 	"github.com/sagernet/sing-box"
-	"github.com/sagernet/sing-box/common/badjsonmerge"
+	"github.com/sagernet/sing-box/common/json"
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
+	"github.com/sagernet/sing/common/debug"
 	E "github.com/sagernet/sing/common/exceptions"
 
 	"github.com/spf13/cobra"
@@ -24,102 +20,25 @@ import (
 var commandRun = &cobra.Command{
 	Use:   "run",
 	Short: "Run service",
-	Run: func(cmd *cobra.Command, args []string) {
-		err := run()
-		if err != nil {
-			log.Fatal(err)
-		}
-	},
+	Run:   run,
 }
 
-func init() {
-	mainCommand.AddCommand(commandRun)
-}
-
-type OptionsEntry struct {
-	content []byte
-	path    string
-	options option.Options
-}
-
-func readConfigAt(path string) (*OptionsEntry, error) {
-	var (
-		configContent []byte
-		err           error
-	)
-	if path == "stdin" {
-		configContent, err = io.ReadAll(os.Stdin)
-	} else {
-		configContent, err = os.ReadFile(path)
-	}
+func run(cmd *cobra.Command, args []string) {
+	err := run0()
 	if err != nil {
-		return nil, E.Cause(err, "read config at ", path)
+		log.Fatal(err)
+	}
+}
+
+func run0() error {
+	configContent, err := os.ReadFile(configPath)
+	if err != nil {
+		return E.Cause(err, "read config")
 	}
 	var options option.Options
-	err = options.UnmarshalJSON(configContent)
+	err = json.Unmarshal(configContent, &options)
 	if err != nil {
-		return nil, E.Cause(err, "decode config at ", path)
-	}
-	return &OptionsEntry{
-		content: configContent,
-		path:    path,
-		options: options,
-	}, nil
-}
-
-func readConfig() ([]*OptionsEntry, error) {
-	var optionsList []*OptionsEntry
-	for _, path := range configPaths {
-		optionsEntry, err := readConfigAt(path)
-		if err != nil {
-			return nil, err
-		}
-		optionsList = append(optionsList, optionsEntry)
-	}
-	for _, directory := range configDirectories {
-		entries, err := os.ReadDir(directory)
-		if err != nil {
-			return nil, E.Cause(err, "read config directory at ", directory)
-		}
-		for _, entry := range entries {
-			if !strings.HasSuffix(entry.Name(), ".json") || entry.IsDir() {
-				continue
-			}
-			optionsEntry, err := readConfigAt(filepath.Join(directory, entry.Name()))
-			if err != nil {
-				return nil, err
-			}
-			optionsList = append(optionsList, optionsEntry)
-		}
-	}
-	sort.Slice(optionsList, func(i, j int) bool {
-		return optionsList[i].path < optionsList[j].path
-	})
-	return optionsList, nil
-}
-
-func readConfigAndMerge() (option.Options, error) {
-	optionsList, err := readConfig()
-	if err != nil {
-		return option.Options{}, err
-	}
-	if len(optionsList) == 1 {
-		return optionsList[0].options, nil
-	}
-	var mergedOptions option.Options
-	for _, options := range optionsList {
-		mergedOptions, err = badjsonmerge.MergeOptions(options.options, mergedOptions)
-		if err != nil {
-			return option.Options{}, E.Cause(err, "merge config at ", options.path)
-		}
-	}
-	return mergedOptions, nil
-}
-
-func create() (*box.Box, context.CancelFunc, error) {
-	options, err := readConfigAndMerge()
-	if err != nil {
-		return nil, nil, err
+		return E.Cause(err, "decode config")
 	}
 	if disableColor {
 		if options.Log == nil {
@@ -128,74 +47,26 @@ func create() (*box.Box, context.CancelFunc, error) {
 		options.Log.DisableColor = true
 	}
 	ctx, cancel := context.WithCancel(context.Background())
-	instance, err := box.New(box.Options{
-		Context: ctx,
-		Options: options,
-	})
+	instance, err := box.New(ctx, options)
 	if err != nil {
 		cancel()
-		return nil, nil, E.Cause(err, "create service")
+		return E.Cause(err, "create service")
 	}
-
-	osSignals := make(chan os.Signal, 1)
-	signal.Notify(osSignals, os.Interrupt, syscall.SIGTERM, syscall.SIGHUP)
-	defer func() {
-		signal.Stop(osSignals)
-		close(osSignals)
-	}()
-
-	go func() {
-		_, loaded := <-osSignals
-		if loaded {
-			cancel()
-		}
-	}()
 	err = instance.Start()
 	if err != nil {
 		cancel()
-		return nil, nil, E.Cause(err, "start service")
+		return E.Cause(err, "start service")
 	}
-	return instance, cancel, nil
-}
-
-func run() error {
-	osSignals := make(chan os.Signal, 1)
-	signal.Notify(osSignals, os.Interrupt, syscall.SIGTERM, syscall.SIGHUP)
-	defer signal.Stop(osSignals)
-	for {
-		instance, cancel, err := create()
-		if err != nil {
-			return err
-		}
-		runtimeDebug.FreeOSMemory()
-		for {
-			osSignal := <-osSignals
-			if osSignal == syscall.SIGHUP {
-				err = check()
-				if err != nil {
-					log.Error(E.Cause(err, "reload service"))
-					continue
-				}
-			}
+	if debug.Enabled {
+		http.HandleFunc("/debug/close", func(writer http.ResponseWriter, request *http.Request) {
 			cancel()
-			closeCtx, closed := context.WithCancel(context.Background())
-			go closeMonitor(closeCtx)
 			instance.Close()
-			closed()
-			if osSignal != syscall.SIGHUP {
-				return nil
-			}
-			break
-		}
+		})
 	}
-}
-
-func closeMonitor(ctx context.Context) {
-	time.Sleep(3 * time.Second)
-	select {
-	case <-ctx.Done():
-		return
-	default:
-	}
-	log.Fatal("sing-box did not close!")
+	osSignals := make(chan os.Signal, 1)
+	signal.Notify(osSignals, os.Interrupt, syscall.SIGTERM)
+	<-osSignals
+	cancel()
+	instance.Close()
+	return nil
 }

cmd/sing-box/cmd_tools.go

@@ -1,53 +0,0 @@
-package main
-
-import (
-	"github.com/sagernet/sing-box"
-	E "github.com/sagernet/sing/common/exceptions"
-	N "github.com/sagernet/sing/common/network"
-
-	"github.com/spf13/cobra"
-)
-
-var commandToolsFlagOutbound string
-
-var commandTools = &cobra.Command{
-	Use:   "tools",
-	Short: "Experimental tools",
-}
-
-func init() {
-	commandTools.PersistentFlags().StringVarP(&commandToolsFlagOutbound, "outbound", "o", "", "Use specified tag instead of default outbound")
-	mainCommand.AddCommand(commandTools)
-}
-
-func createPreStartedClient() (*box.Box, error) {
-	options, err := readConfigAndMerge()
-	if err != nil {
-		return nil, err
-	}
-	instance, err := box.New(box.Options{Options: options})
-	if err != nil {
-		return nil, E.Cause(err, "create service")
-	}
-	err = instance.PreStart()
-	if err != nil {
-		return nil, E.Cause(err, "start service")
-	}
-	return instance, nil
-}
-
-func createDialer(instance *box.Box, network string, outboundTag string) (N.Dialer, error) {
-	if outboundTag == "" {
-		outbound := instance.Router().DefaultOutbound(N.NetworkName(network))
-		if outbound == nil {
-			return nil, E.New("missing default outbound")
-		}
-		return outbound, nil
-	} else {
-		outbound, loaded := instance.Router().Outbound(outboundTag)
-		if !loaded {
-			return nil, E.New("outbound not found: ", outboundTag)
-		}
-		return outbound, nil
-	}
-}

cmd/sing-box/cmd_tools_connect.go

@@ -1,73 +0,0 @@
-package main
-
-import (
-	"context"
-	"os"
-
-	"github.com/sagernet/sing-box/log"
-	"github.com/sagernet/sing/common"
-	"github.com/sagernet/sing/common/bufio"
-	E "github.com/sagernet/sing/common/exceptions"
-	M "github.com/sagernet/sing/common/metadata"
-	N "github.com/sagernet/sing/common/network"
-	"github.com/sagernet/sing/common/task"
-
-	"github.com/spf13/cobra"
-)
-
-var commandConnectFlagNetwork string
-
-var commandConnect = &cobra.Command{
-	Use:   "connect [address]",
-	Short: "Connect to an address",
-	Args:  cobra.ExactArgs(1),
-	Run: func(cmd *cobra.Command, args []string) {
-		err := connect(args[0])
-		if err != nil {
-			log.Fatal(err)
-		}
-	},
-}
-
-func init() {
-	commandConnect.Flags().StringVarP(&commandConnectFlagNetwork, "network", "n", "tcp", "network type")
-	commandTools.AddCommand(commandConnect)
-}
-
-func connect(address string) error {
-	switch N.NetworkName(commandConnectFlagNetwork) {
-	case N.NetworkTCP, N.NetworkUDP:
-	default:
-		return E.Cause(N.ErrUnknownNetwork, commandConnectFlagNetwork)
-	}
-	instance, err := createPreStartedClient()
-	if err != nil {
-		return err
-	}
-	defer instance.Close()
-	dialer, err := createDialer(instance, commandConnectFlagNetwork, commandToolsFlagOutbound)
-	if err != nil {
-		return err
-	}
-	conn, err := dialer.DialContext(context.Background(), commandConnectFlagNetwork, M.ParseSocksaddr(address))
-	if err != nil {
-		return E.Cause(err, "connect to server")
-	}
-	var group task.Group
-	group.Append("upload", func(ctx context.Context) error {
-		return common.Error(bufio.Copy(conn, os.Stdin))
-	})
-	group.Append("download", func(ctx context.Context) error {
-		return common.Error(bufio.Copy(os.Stdout, conn))
-	})
-	group.Cleanup(func() {
-		conn.Close()
-	})
-	err = group.Run(context.Background())
-	if E.IsClosed(err) {
-		log.Info(err)
-	} else {
-		log.Error(err)
-	}
-	return nil
-}

cmd/sing-box/cmd_tools_fetch.go

@@ -1,91 +0,0 @@
-package main
-
-import (
-	"context"
-	"errors"
-	"io"
-	"net"
-	"net/http"
-	"net/url"
-	"os"
-
-	"github.com/sagernet/sing-box/log"
-	"github.com/sagernet/sing/common/bufio"
-	M "github.com/sagernet/sing/common/metadata"
-
-	"github.com/spf13/cobra"
-)
-
-var commandFetch = &cobra.Command{
-	Use:   "fetch",
-	Short: "Fetch an URL",
-	Args:  cobra.MinimumNArgs(1),
-	Run: func(cmd *cobra.Command, args []string) {
-		err := fetch(args)
-		if err != nil {
-			log.Fatal(err)
-		}
-	},
-}
-
-func init() {
-	commandTools.AddCommand(commandFetch)
-}
-
-var httpClient *http.Client
-
-func fetch(args []string) error {
-	instance, err := createPreStartedClient()
-	if err != nil {
-		return err
-	}
-	defer instance.Close()
-	httpClient = &http.Client{
-		Transport: &http.Transport{
-			DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
-				dialer, err := createDialer(instance, network, commandToolsFlagOutbound)
-				if err != nil {
-					return nil, err
-				}
-				return dialer.DialContext(ctx, network, M.ParseSocksaddr(addr))
-			},
-			ForceAttemptHTTP2: true,
-		},
-	}
-	defer httpClient.CloseIdleConnections()
-	for _, urlString := range args {
-		parsedURL, err := url.Parse(urlString)
-		if err != nil {
-			return err
-		}
-		switch parsedURL.Scheme {
-		case "":
-			parsedURL.Scheme = "http"
-			fallthrough
-		case "http", "https":
-			err = fetchHTTP(parsedURL)
-			if err != nil {
-				return err
-			}
-		}
-	}
-	return nil
-}
-
-func fetchHTTP(parsedURL *url.URL) error {
-	request, err := http.NewRequest("GET", parsedURL.String(), nil)
-	if err != nil {
-		return err
-	}
-	request.Header.Add("User-Agent", "curl/7.88.0")
-	response, err := httpClient.Do(request)
-	if err != nil {
-		return err
-	}
-	defer response.Body.Close()
-	_, err = bufio.Copy(os.Stdout, response.Body)
-	if errors.Is(err, io.EOF) {
-		return nil
-	}
-	return err
-}

cmd/sing-box/cmd_tools_synctime.go

@@ -1,69 +0,0 @@
-package main
-
-import (
-	"context"
-	"os"
-
-	"github.com/sagernet/sing-box/common/settings"
-	C "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing-box/log"
-	E "github.com/sagernet/sing/common/exceptions"
-	M "github.com/sagernet/sing/common/metadata"
-	N "github.com/sagernet/sing/common/network"
-	"github.com/sagernet/sing/common/ntp"
-
-	"github.com/spf13/cobra"
-)
-
-var (
-	commandSyncTimeFlagServer   string
-	commandSyncTimeOutputFormat string
-	commandSyncTimeWrite        bool
-)
-
-var commandSyncTime = &cobra.Command{
-	Use:   "synctime",
-	Short: "Sync time using the NTP protocol",
-	Args:  cobra.NoArgs,
-	Run: func(cmd *cobra.Command, args []string) {
-		err := syncTime()
-		if err != nil {
-			log.Fatal(err)
-		}
-	},
-}
-
-func init() {
-	commandSyncTime.Flags().StringVarP(&commandSyncTimeFlagServer, "server", "s", "time.apple.com", "Set NTP server")
-	commandSyncTime.Flags().StringVarP(&commandSyncTimeOutputFormat, "format", "f", C.TimeLayout, "Set output format")
-	commandSyncTime.Flags().BoolVarP(&commandSyncTimeWrite, "write", "w", false, "Write time to system")
-	commandTools.AddCommand(commandSyncTime)
-}
-
-func syncTime() error {
-	instance, err := createPreStartedClient()
-	if err != nil {
-		return err
-	}
-	dialer, err := createDialer(instance, N.NetworkUDP, commandToolsFlagOutbound)
-	if err != nil {
-		return err
-	}
-	defer instance.Close()
-	serverAddress := M.ParseSocksaddr(commandSyncTimeFlagServer)
-	if serverAddress.Port == 0 {
-		serverAddress.Port = 123
-	}
-	response, err := ntp.Exchange(context.Background(), dialer, serverAddress)
-	if err != nil {
-		return err
-	}
-	if commandSyncTimeWrite {
-		err = settings.SetSystemTime(response.Time)
-		if err != nil {
-			return E.Cause(err, "write time to system")
-		}
-	}
-	os.Stdout.WriteString(response.Time.Local().Format(commandSyncTimeOutputFormat))
-	return nil
-}

cmd/sing-box/cmd_version.go

@@ -3,9 +3,9 @@ package main
 import (
 	"os"
 	"runtime"
-	"runtime/debug"
 
 	C "github.com/sagernet/sing-box/constant"
+	F "github.com/sagernet/sing/common/format"
 
 	"github.com/spf13/cobra"
 )
@@ -21,44 +21,33 @@ var nameOnly bool
 
 func init() {
 	commandVersion.Flags().BoolVarP(&nameOnly, "name", "n", false, "print version name only")
-	mainCommand.AddCommand(commandVersion)
 }
 
 func printVersion(cmd *cobra.Command, args []string) {
-	if nameOnly {
-		os.Stdout.WriteString(C.Version + "\n")
-		return
+	var version string
+	if !nameOnly {
+		version = "sing-box "
 	}
-	version := "sing-box version " + C.Version + "\n\n"
-	version += "Environment: " + runtime.Version() + " " + runtime.GOOS + "/" + runtime.GOARCH + "\n"
-
-	var tags string
-	var revision string
-
-	debugInfo, loaded := debug.ReadBuildInfo()
-	if loaded {
-		for _, setting := range debugInfo.Settings {
-			switch setting.Key {
-			case "-tags":
-				tags = setting.Value
-			case "vcs.revision":
-				revision = setting.Value
-			}
+	version += F.ToString(C.Version)
+	if C.Commit != "" {
+		version += "." + C.Commit
+	}
+	if !nameOnly {
+		version += " ("
+		version += runtime.Version()
+		version += ", "
+		version += runtime.GOOS
+		version += ", "
+		version += runtime.GOARCH
+		version += ", "
+		version += "CGO "
+		if C.CGO_ENABLED {
+			version += "enabled"
+		} else {
+			version += "disabled"
 		}
+		version += ")"
 	}
-
-	if tags != "" {
-		version += "Tags: " + tags + "\n"
-	}
-	if revision != "" {
-		version += "Revision: " + revision + "\n"
-	}
-
-	if C.CGO_ENABLED {
-		version += "CGO: enabled\n"
-	} else {
-		version += "CGO: disabled\n"
-	}
-
+	version += "\n"
 	os.Stdout.WriteString(version)
 }

cmd/sing-box/debug.go

@@ -25,9 +25,9 @@ func init() {
 		runtime.ReadMemStats(&memStats)
 
 		var memObject badjson.JSONObject
-		memObject.Put("heap", humanize.IBytes(memStats.HeapInuse))
-		memObject.Put("stack", humanize.IBytes(memStats.StackInuse))
-		memObject.Put("idle", humanize.IBytes(memStats.HeapIdle-memStats.HeapReleased))
+		memObject.Put("heap", humanize.Bytes(memStats.HeapInuse))
+		memObject.Put("stack", humanize.Bytes(memStats.StackInuse))
+		memObject.Put("idle", humanize.Bytes(memStats.HeapIdle-memStats.HeapReleased))
 		memObject.Put("goroutines", runtime.NumGoroutine())
 		memObject.Put("rss", rusageMaxRSS())
 

cmd/sing-box/main.go

@@ -2,19 +2,16 @@ package main
 
 import (
 	"os"
-	"time"
 
-	_ "github.com/sagernet/sing-box/include"
 	"github.com/sagernet/sing-box/log"
 
 	"github.com/spf13/cobra"
 )
 
 var (
-	configPaths       []string
-	configDirectories []string
-	workingDir        string
-	disableColor      bool
+	configPath   string
+	workingDir   string
+	disableColor bool
 )
 
 var mainCommand = &cobra.Command{
@@ -23,10 +20,14 @@ var mainCommand = &cobra.Command{
 }
 
 func init() {
-	mainCommand.PersistentFlags().StringArrayVarP(&configPaths, "config", "c", nil, "set configuration file path")
-	mainCommand.PersistentFlags().StringArrayVarP(&configDirectories, "config-directory", "C", nil, "set configuration directory path")
+	mainCommand.PersistentFlags().StringVarP(&configPath, "config", "c", "config.json", "set configuration file path")
 	mainCommand.PersistentFlags().StringVarP(&workingDir, "directory", "D", "", "set working directory")
 	mainCommand.PersistentFlags().BoolVarP(&disableColor, "disable-color", "", false, "disable color output")
+
+	mainCommand.AddCommand(commandRun)
+	mainCommand.AddCommand(commandCheck)
+	mainCommand.AddCommand(commandFormat)
+	mainCommand.AddCommand(commandVersion)
 }
 
 func main() {
@@ -36,19 +37,9 @@ func main() {
 }
 
 func preRun(cmd *cobra.Command, args []string) {
-	if disableColor {
-		log.SetStdLogger(log.NewFactory(log.Formatter{BaseTime: time.Now(), DisableColors: true}, os.Stderr, nil).Logger())
-	}
 	if workingDir != "" {
-		_, err := os.Stat(workingDir)
-		if err != nil {
-			os.MkdirAll(workingDir, 0o777)
-		}
 		if err := os.Chdir(workingDir); err != nil {
 			log.Fatal(err)
 		}
 	}
-	if len(configPaths) == 0 && len(configDirectories) == 0 {
-		configPaths = append(configPaths, "config.json")
-	}
 }

common/baderror/baderror.go

@@ -1,62 +0,0 @@
-package baderror
-
-import (
-	"context"
-	"io"
-	"net"
-	"strings"
-
-	E "github.com/sagernet/sing/common/exceptions"
-)
-
-func Contains(err error, msgList ...string) bool {
-	for _, msg := range msgList {
-		if strings.Contains(err.Error(), msg) {
-			return true
-		}
-	}
-	return false
-}
-
-func WrapH2(err error) error {
-	if err == nil {
-		return nil
-	}
-	err = E.Unwrap(err)
-	if err == io.ErrUnexpectedEOF {
-		return io.EOF
-	}
-	if Contains(err, "client disconnected", "body closed by handler", "response body closed", "; CANCEL") {
-		return net.ErrClosed
-	}
-	return err
-}
-
-func WrapGRPC(err error) error {
-	// grpc uses stupid internal error types
-	if err == nil {
-		return nil
-	}
-	if Contains(err, "EOF") {
-		return io.EOF
-	}
-	if Contains(err, "Canceled") {
-		return context.Canceled
-	}
-	if Contains(err,
-		"the client connection is closing",
-		"server closed the stream without sending trailers") {
-		return net.ErrClosed
-	}
-	return err
-}
-
-func WrapQUIC(err error) error {
-	if err == nil {
-		return nil
-	}
-	if Contains(err, "canceled with error code 0") {
-		return net.ErrClosed
-	}
-	return err
-}

common/badjsonmerge/merge.go

@@ -1,80 +0,0 @@
-package badjsonmerge
-
-import (
-	"encoding/json"
-	"reflect"
-
-	"github.com/sagernet/sing-box/common/badjson"
-	"github.com/sagernet/sing-box/option"
-	E "github.com/sagernet/sing/common/exceptions"
-)
-
-func MergeOptions(source option.Options, destination option.Options) (option.Options, error) {
-	rawSource, err := json.Marshal(source)
-	if err != nil {
-		return option.Options{}, E.Cause(err, "marshal source")
-	}
-	rawDestination, err := json.Marshal(destination)
-	if err != nil {
-		return option.Options{}, E.Cause(err, "marshal destination")
-	}
-	rawMerged, err := MergeJSON(rawSource, rawDestination)
-	if err != nil {
-		return option.Options{}, E.Cause(err, "merge options")
-	}
-	var merged option.Options
-	err = json.Unmarshal(rawMerged, &merged)
-	if err != nil {
-		return option.Options{}, E.Cause(err, "unmarshal merged options")
-	}
-	return merged, nil
-}
-
-func MergeJSON(rawSource json.RawMessage, rawDestination json.RawMessage) (json.RawMessage, error) {
-	source, err := badjson.Decode(rawSource)
-	if err != nil {
-		return nil, E.Cause(err, "decode source")
-	}
-	destination, err := badjson.Decode(rawDestination)
-	if err != nil {
-		return nil, E.Cause(err, "decode destination")
-	}
-	merged, err := mergeJSON(source, destination)
-	if err != nil {
-		return nil, err
-	}
-	return json.Marshal(merged)
-}
-
-func mergeJSON(anySource any, anyDestination any) (any, error) {
-	switch destination := anyDestination.(type) {
-	case badjson.JSONArray:
-		switch source := anySource.(type) {
-		case badjson.JSONArray:
-			destination = append(destination, source...)
-		default:
-			destination = append(destination, source)
-		}
-		return destination, nil
-	case *badjson.JSONObject:
-		switch source := anySource.(type) {
-		case *badjson.JSONObject:
-			for _, entry := range source.Entries() {
-				oldValue, loaded := destination.Get(entry.Key)
-				if loaded {
-					var err error
-					entry.Value, err = mergeJSON(entry.Value, oldValue)
-					if err != nil {
-						return nil, E.Cause(err, "merge object item ", entry.Key)
-					}
-				}
-				destination.Put(entry.Key, entry.Value)
-			}
-		default:
-			return nil, E.New("cannot merge json object into ", reflect.TypeOf(destination))
-		}
-		return destination, nil
-	default:
-		return destination, nil
-	}
-}

common/badjsonmerge/merge_test.go

@@ -1,59 +0,0 @@
-package badjsonmerge
-
-import (
-	"testing"
-
-	C "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing-box/option"
-	N "github.com/sagernet/sing/common/network"
-
-	"github.com/stretchr/testify/require"
-)
-
-func TestMergeJSON(t *testing.T) {
-	t.Parallel()
-	options := option.Options{
-		Log: &option.LogOptions{
-			Level: "info",
-		},
-		Route: &option.RouteOptions{
-			Rules: []option.Rule{
-				{
-					Type: C.RuleTypeDefault,
-					DefaultOptions: option.DefaultRule{
-						Network:  []string{N.NetworkTCP},
-						Outbound: "direct",
-					},
-				},
-			},
-		},
-	}
-	anotherOptions := option.Options{
-		Outbounds: []option.Outbound{
-			{
-				Type: C.TypeDirect,
-				Tag:  "direct",
-			},
-		},
-	}
-	thirdOptions := option.Options{
-		Route: &option.RouteOptions{
-			Rules: []option.Rule{
-				{
-					Type: C.RuleTypeDefault,
-					DefaultOptions: option.DefaultRule{
-						Network:  []string{N.NetworkUDP},
-						Outbound: "direct",
-					},
-				},
-			},
-		},
-	}
-	mergeOptions, err := MergeOptions(options, anotherOptions)
-	require.NoError(t, err)
-	mergeOptions, err = MergeOptions(thirdOptions, mergeOptions)
-	require.NoError(t, err)
-	require.Equal(t, "info", mergeOptions.Log.Level)
-	require.Equal(t, 2, len(mergeOptions.Route.Rules))
-	require.Equal(t, C.TypeDirect, mergeOptions.Outbounds[0].Type)
-}

common/badtls/badtls.go

@@ -1,210 +0,0 @@
-//go:build go1.19 && !go1.20
-
-package badtls
-
-import (
-	"crypto/cipher"
-	"crypto/rand"
-	"crypto/tls"
-	"encoding/binary"
-	"io"
-	"net"
-	"reflect"
-	"sync"
-	"sync/atomic"
-	"unsafe"
-
-	"github.com/sagernet/sing/common"
-	"github.com/sagernet/sing/common/buf"
-	"github.com/sagernet/sing/common/bufio"
-	E "github.com/sagernet/sing/common/exceptions"
-	N "github.com/sagernet/sing/common/network"
-)
-
-type Conn struct {
-	*tls.Conn
-	writer           N.ExtendedWriter
-	activeCall       *int32
-	closeNotifySent  *bool
-	version          *uint16
-	rand             io.Reader
-	halfAccess       *sync.Mutex
-	halfError        *error
-	cipher           cipher.AEAD
-	explicitNonceLen int
-	halfPtr          uintptr
-	halfSeq          []byte
-	halfScratchBuf   []byte
-}
-
-func Create(conn *tls.Conn) (TLSConn, error) {
-	if !handshakeComplete(conn) {
-		return nil, E.New("handshake not finished")
-	}
-	rawConn := reflect.Indirect(reflect.ValueOf(conn))
-	rawActiveCall := rawConn.FieldByName("activeCall")
-	if !rawActiveCall.IsValid() || rawActiveCall.Kind() != reflect.Int32 {
-		return nil, E.New("badtls: invalid active call")
-	}
-	activeCall := (*int32)(unsafe.Pointer(rawActiveCall.UnsafeAddr()))
-	rawHalfConn := rawConn.FieldByName("out")
-	if !rawHalfConn.IsValid() || rawHalfConn.Kind() != reflect.Struct {
-		return nil, E.New("badtls: invalid half conn")
-	}
-	rawVersion := rawConn.FieldByName("vers")
-	if !rawVersion.IsValid() || rawVersion.Kind() != reflect.Uint16 {
-		return nil, E.New("badtls: invalid version")
-	}
-	version := (*uint16)(unsafe.Pointer(rawVersion.UnsafeAddr()))
-	rawCloseNotifySent := rawConn.FieldByName("closeNotifySent")
-	if !rawCloseNotifySent.IsValid() || rawCloseNotifySent.Kind() != reflect.Bool {
-		return nil, E.New("badtls: invalid notify")
-	}
-	closeNotifySent := (*bool)(unsafe.Pointer(rawCloseNotifySent.UnsafeAddr()))
-	rawConfig := reflect.Indirect(rawConn.FieldByName("config"))
-	if !rawConfig.IsValid() || rawConfig.Kind() != reflect.Struct {
-		return nil, E.New("badtls: bad config")
-	}
-	config := (*tls.Config)(unsafe.Pointer(rawConfig.UnsafeAddr()))
-	randReader := config.Rand
-	if randReader == nil {
-		randReader = rand.Reader
-	}
-	rawHalfMutex := rawHalfConn.FieldByName("Mutex")
-	if !rawHalfMutex.IsValid() || rawHalfMutex.Kind() != reflect.Struct {
-		return nil, E.New("badtls: invalid half mutex")
-	}
-	halfAccess := (*sync.Mutex)(unsafe.Pointer(rawHalfMutex.UnsafeAddr()))
-	rawHalfError := rawHalfConn.FieldByName("err")
-	if !rawHalfError.IsValid() || rawHalfError.Kind() != reflect.Interface {
-		return nil, E.New("badtls: invalid half error")
-	}
-	halfError := (*error)(unsafe.Pointer(rawHalfError.UnsafeAddr()))
-	rawHalfCipherInterface := rawHalfConn.FieldByName("cipher")
-	if !rawHalfCipherInterface.IsValid() || rawHalfCipherInterface.Kind() != reflect.Interface {
-		return nil, E.New("badtls: invalid cipher interface")
-	}
-	rawHalfCipher := rawHalfCipherInterface.Elem()
-	aeadCipher, loaded := valueInterface(rawHalfCipher, false).(cipher.AEAD)
-	if !loaded {
-		return nil, E.New("badtls: invalid AEAD cipher")
-	}
-	var explicitNonceLen int
-	switch cipherName := reflect.Indirect(rawHalfCipher).Type().String(); cipherName {
-	case "tls.prefixNonceAEAD":
-		explicitNonceLen = aeadCipher.NonceSize()
-	case "tls.xorNonceAEAD":
-	default:
-		return nil, E.New("badtls: unknown cipher type: ", cipherName)
-	}
-	rawHalfSeq := rawHalfConn.FieldByName("seq")
-	if !rawHalfSeq.IsValid() || rawHalfSeq.Kind() != reflect.Array {
-		return nil, E.New("badtls: invalid seq")
-	}
-	halfSeq := rawHalfSeq.Bytes()
-	rawHalfScratchBuf := rawHalfConn.FieldByName("scratchBuf")
-	if !rawHalfScratchBuf.IsValid() || rawHalfScratchBuf.Kind() != reflect.Array {
-		return nil, E.New("badtls: invalid scratchBuf")
-	}
-	halfScratchBuf := rawHalfScratchBuf.Bytes()
-	return &Conn{
-		Conn:             conn,
-		writer:           bufio.NewExtendedWriter(conn.NetConn()),
-		activeCall:       activeCall,
-		closeNotifySent:  closeNotifySent,
-		version:          version,
-		halfAccess:       halfAccess,
-		halfError:        halfError,
-		cipher:           aeadCipher,
-		explicitNonceLen: explicitNonceLen,
-		rand:             randReader,
-		halfPtr:          rawHalfConn.UnsafeAddr(),
-		halfSeq:          halfSeq,
-		halfScratchBuf:   halfScratchBuf,
-	}, nil
-}
-
-func (c *Conn) WriteBuffer(buffer *buf.Buffer) error {
-	if buffer.Len() > maxPlaintext {
-		defer buffer.Release()
-		return common.Error(c.Write(buffer.Bytes()))
-	}
-	for {
-		x := atomic.LoadInt32(c.activeCall)
-		if x&1 != 0 {
-			return net.ErrClosed
-		}
-		if atomic.CompareAndSwapInt32(c.activeCall, x, x+2) {
-			break
-		}
-	}
-	defer atomic.AddInt32(c.activeCall, -2)
-	c.halfAccess.Lock()
-	defer c.halfAccess.Unlock()
-	if err := *c.halfError; err != nil {
-		return err
-	}
-	if *c.closeNotifySent {
-		return errShutdown
-	}
-	dataLen := buffer.Len()
-	dataBytes := buffer.Bytes()
-	outBuf := buffer.ExtendHeader(recordHeaderLen + c.explicitNonceLen)
-	outBuf[0] = 23
-	version := *c.version
-	if version == 0 {
-		version = tls.VersionTLS10
-	} else if version == tls.VersionTLS13 {
-		version = tls.VersionTLS12
-	}
-	binary.BigEndian.PutUint16(outBuf[1:], version)
-	var nonce []byte
-	if c.explicitNonceLen > 0 {
-		nonce = outBuf[5 : 5+c.explicitNonceLen]
-		if c.explicitNonceLen < 16 {
-			copy(nonce, c.halfSeq)
-		} else {
-			if _, err := io.ReadFull(c.rand, nonce); err != nil {
-				return err
-			}
-		}
-	}
-	if len(nonce) == 0 {
-		nonce = c.halfSeq
-	}
-	if *c.version == tls.VersionTLS13 {
-		buffer.FreeBytes()[0] = 23
-		binary.BigEndian.PutUint16(outBuf[3:], uint16(dataLen+1+c.cipher.Overhead()))
-		c.cipher.Seal(outBuf, nonce, outBuf[recordHeaderLen:recordHeaderLen+c.explicitNonceLen+dataLen+1], outBuf[:recordHeaderLen])
-		buffer.Extend(1 + c.cipher.Overhead())
-	} else {
-		binary.BigEndian.PutUint16(outBuf[3:], uint16(dataLen))
-		additionalData := append(c.halfScratchBuf[:0], c.halfSeq...)
-		additionalData = append(additionalData, outBuf[:recordHeaderLen]...)
-		c.cipher.Seal(outBuf, nonce, dataBytes, additionalData)
-		buffer.Extend(c.cipher.Overhead())
-		binary.BigEndian.PutUint16(outBuf[3:], uint16(dataLen+c.explicitNonceLen+c.cipher.Overhead()))
-	}
-	incSeq(c.halfPtr)
-	return c.writer.WriteBuffer(buffer)
-}
-
-func (c *Conn) FrontHeadroom() int {
-	return recordHeaderLen + c.explicitNonceLen
-}
-
-func (c *Conn) RearHeadroom() int {
-	return 1 + c.cipher.Overhead()
-}
-
-func (c *Conn) WriterMTU() int {
-	return maxPlaintext
-}
-
-func (c *Conn) Upstream() any {
-	return c.Conn
-}
-
-func (c *Conn) UpstreamWriter() any {
-	return c.NetConn()
-}

common/badtls/badtls_stub.go

@@ -1,12 +0,0 @@
-//go:build !go1.19 || go1.20
-
-package badtls
-
-import (
-	"crypto/tls"
-	"os"
-)
-
-func Create(conn *tls.Conn) (TLSConn, error) {
-	return nil, os.ErrInvalid
-}

common/badtls/conn.go

@@ -1,13 +0,0 @@
-package badtls
-
-import (
-	"context"
-	"crypto/tls"
-	"net"
-)
-
-type TLSConn interface {
-	net.Conn
-	HandshakeContext(ctx context.Context) error
-	ConnectionState() tls.ConnectionState
-}

common/badtls/link.go

@@ -1,26 +0,0 @@
-//go:build go1.19 && !go.1.20
-
-package badtls
-
-import (
-	"crypto/tls"
-	"reflect"
-	_ "unsafe"
-)
-
-const (
-	maxPlaintext    = 16384 // maximum plaintext payload length
-	recordHeaderLen = 5     // record header length
-)
-
-//go:linkname errShutdown crypto/tls.errShutdown
-var errShutdown error
-
-//go:linkname handshakeComplete crypto/tls.(*Conn).handshakeComplete
-func handshakeComplete(conn *tls.Conn) bool
-
-//go:linkname incSeq crypto/tls.(*halfConn).incSeq
-func incSeq(conn uintptr)
-
-//go:linkname valueInterface reflect.valueInterface
-func valueInterface(v reflect.Value, safe bool) any

common/canceler/instance.go

@@ -0,0 +1,48 @@
+package canceler
+
+import (
+	"context"
+	"time"
+)
+
+type Instance struct {
+	ctx        context.Context
+	cancelFunc context.CancelFunc
+	timer      *time.Timer
+	timeout    time.Duration
+}
+
+func New(ctx context.Context, cancelFunc context.CancelFunc, timeout time.Duration) *Instance {
+	instance := &Instance{
+		ctx,
+		cancelFunc,
+		time.NewTimer(timeout),
+		timeout,
+	}
+	go instance.wait()
+	return instance
+}
+
+func (i *Instance) Update() bool {
+	if !i.timer.Stop() {
+		return false
+	}
+	if !i.timer.Reset(i.timeout) {
+		return false
+	}
+	return true
+}
+
+func (i *Instance) wait() {
+	select {
+	case <-i.timer.C:
+	case <-i.ctx.Done():
+	}
+	i.Close()
+}
+
+func (i *Instance) Close() error {
+	i.timer.Stop()
+	i.cancelFunc()
+	return nil
+}

common/canceler/packet.go

@@ -0,0 +1,49 @@
+package canceler
+
+import (
+	"context"
+	"time"
+
+	"github.com/sagernet/sing/common"
+	"github.com/sagernet/sing/common/buf"
+	M "github.com/sagernet/sing/common/metadata"
+	N "github.com/sagernet/sing/common/network"
+)
+
+type PacketConn struct {
+	N.PacketConn
+	instance *Instance
+}
+
+func NewPacketConn(ctx context.Context, conn N.PacketConn, timeout time.Duration) (context.Context, N.PacketConn) {
+	ctx, cancel := context.WithCancel(ctx)
+	instance := New(ctx, cancel, timeout)
+	return ctx, &PacketConn{conn, instance}
+}
+
+func (c *PacketConn) ReadPacket(buffer *buf.Buffer) (destination M.Socksaddr, err error) {
+	destination, err = c.PacketConn.ReadPacket(buffer)
+	if err == nil {
+		c.instance.Update()
+	}
+	return
+}
+
+func (c *PacketConn) WritePacket(buffer *buf.Buffer, destination M.Socksaddr) error {
+	err := c.PacketConn.WritePacket(buffer, destination)
+	if err == nil {
+		c.instance.Update()
+	}
+	return err
+}
+
+func (c *PacketConn) Close() error {
+	return common.Close(
+		c.PacketConn,
+		c.instance,
+	)
+}
+
+func (c *PacketConn) Upstream() any {
+	return c.PacketConn
+}

common/debugio/print.go

@@ -1,19 +0,0 @@
-package debugio
-
-import (
-	"fmt"
-	"reflect"
-
-	"github.com/sagernet/sing/common"
-)
-
-func PrintUpstream(obj any) {
-	for obj != nil {
-		fmt.Println(reflect.TypeOf(obj))
-		if u, ok := obj.(common.WithUpstream); !ok {
-			break
-		} else {
-			obj = u.Upstream()
-		}
-	}
-}

common/dialer/conntrack/conn.go

@@ -1,54 +0,0 @@
-package conntrack
-
-import (
-	"io"
-	"net"
-
-	"github.com/sagernet/sing/common/x/list"
-)
-
-type Conn struct {
-	net.Conn
-	element *list.Element[io.Closer]
-}
-
-func NewConn(conn net.Conn) (*Conn, error) {
-	connAccess.Lock()
-	element := openConnection.PushBack(conn)
-	connAccess.Unlock()
-	if KillerEnabled {
-		err := killerCheck()
-		if err != nil {
-			conn.Close()
-			return nil, err
-		}
-	}
-	return &Conn{
-		Conn:    conn,
-		element: element,
-	}, nil
-}
-
-func (c *Conn) Close() error {
-	if c.element.Value != nil {
-		connAccess.Lock()
-		if c.element.Value != nil {
-			openConnection.Remove(c.element)
-			c.element.Value = nil
-		}
-		connAccess.Unlock()
-	}
-	return c.Conn.Close()
-}
-
-func (c *Conn) Upstream() any {
-	return c.Conn
-}
-
-func (c *Conn) ReaderReplaceable() bool {
-	return true
-}
-
-func (c *Conn) WriterReplaceable() bool {
-	return true
-}

common/dialer/conntrack/killer.go

@@ -1,38 +0,0 @@
-package conntrack
-
-import (
-	"runtime"
-	runtimeDebug "runtime/debug"
-	"time"
-
-	E "github.com/sagernet/sing/common/exceptions"
-)
-
-var (
-	KillerEnabled   bool
-	MemoryLimit     int64
-	killerLastCheck time.Time
-)
-
-func killerCheck() error {
-	if !KillerEnabled {
-		return nil
-	}
-	nowTime := time.Now()
-	if nowTime.Sub(killerLastCheck) < 3*time.Second {
-		return nil
-	}
-	killerLastCheck = nowTime
-	var memStats runtime.MemStats
-	runtime.ReadMemStats(&memStats)
-	inuseMemory := int64(memStats.StackInuse + memStats.HeapInuse + memStats.HeapIdle - memStats.HeapReleased)
-	if inuseMemory > MemoryLimit {
-		Close()
-		go func() {
-			time.Sleep(time.Second)
-			runtimeDebug.FreeOSMemory()
-		}()
-		return E.New("out of memory")
-	}
-	return nil
-}

common/dialer/conntrack/packet_conn.go

@@ -1,54 +0,0 @@
-package conntrack
-
-import (
-	"io"
-	"net"
-
-	"github.com/sagernet/sing/common/x/list"
-)
-
-type PacketConn struct {
-	net.PacketConn
-	element *list.Element[io.Closer]
-}
-
-func NewPacketConn(conn net.PacketConn) (*PacketConn, error) {
-	connAccess.Lock()
-	element := openConnection.PushBack(conn)
-	connAccess.Unlock()
-	if KillerEnabled {
-		err := killerCheck()
-		if err != nil {
-			conn.Close()
-			return nil, err
-		}
-	}
-	return &PacketConn{
-		PacketConn: conn,
-		element:    element,
-	}, nil
-}
-
-func (c *PacketConn) Close() error {
-	if c.element.Value != nil {
-		connAccess.Lock()
-		if c.element.Value != nil {
-			openConnection.Remove(c.element)
-			c.element.Value = nil
-		}
-		connAccess.Unlock()
-	}
-	return c.PacketConn.Close()
-}
-
-func (c *PacketConn) Upstream() any {
-	return c.PacketConn
-}
-
-func (c *PacketConn) ReaderReplaceable() bool {
-	return true
-}
-
-func (c *PacketConn) WriterReplaceable() bool {
-	return true
-}

common/dialer/conntrack/track.go

@@ -1,47 +0,0 @@
-package conntrack
-
-import (
-	"io"
-	"sync"
-
-	"github.com/sagernet/sing/common"
-	"github.com/sagernet/sing/common/x/list"
-)
-
-var (
-	connAccess     sync.RWMutex
-	openConnection list.List[io.Closer]
-)
-
-func Count() int {
-	if !Enabled {
-		return 0
-	}
-	return openConnection.Len()
-}
-
-func List() []io.Closer {
-	if !Enabled {
-		return nil
-	}
-	connAccess.RLock()
-	defer connAccess.RUnlock()
-	connList := make([]io.Closer, 0, openConnection.Len())
-	for element := openConnection.Front(); element != nil; element = element.Next() {
-		connList = append(connList, element.Value)
-	}
-	return connList
-}
-
-func Close() {
-	if !Enabled {
-		return
-	}
-	connAccess.Lock()
-	defer connAccess.Unlock()
-	for element := openConnection.Front(); element != nil; element = element.Next() {
-		common.Close(element.Value)
-		element.Value = nil
-	}
-	openConnection.Init()
-}

common/dialer/conntrack/track_disable.go

@@ -1,5 +0,0 @@
-//go:build !with_conntrack
-
-package conntrack
-
-const Enabled = false

common/dialer/conntrack/track_enable.go

@@ -1,5 +0,0 @@
-//go:build with_conntrack
-
-package conntrack
-
-const Enabled = true

common/dialer/default.go

@@ -6,15 +6,14 @@ import (
 	"time"
 
 	"github.com/sagernet/sing-box/adapter"
-	"github.com/sagernet/sing-box/common/dialer/conntrack"
 	"github.com/sagernet/sing-box/common/warning"
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/option"
 	"github.com/sagernet/sing/common/control"
-	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
-	"github.com/sagernet/tfo-go"
+
+	"github.com/database64128/tfo-go"
 )
 
 var warnBindInterfaceOnUnsupportedPlatform = warning.New(
@@ -53,13 +52,8 @@ var warnTFOOnUnsupportedPlatform = warning.New(
 )
 
 type DefaultDialer struct {
-	dialer4     tfo.Dialer
-	dialer6     tfo.Dialer
-	udpDialer4  net.Dialer
-	udpDialer6  net.Dialer
-	udpListener net.ListenConfig
-	udpAddr4    string
-	udpAddr6    string
+	tfo.Dialer
+	net.ListenConfig
 }
 
 func NewDefault(router adapter.Router, options option.DialerOptions) *DefaultDialer {
@@ -67,15 +61,25 @@ func NewDefault(router adapter.Router, options option.DialerOptions) *DefaultDia
 	var listener net.ListenConfig
 	if options.BindInterface != "" {
 		warnBindInterfaceOnUnsupportedPlatform.Check()
-		bindFunc := control.BindToInterface(router.InterfaceFinder(), options.BindInterface, -1)
+		bindFunc := control.BindToInterface(router.InterfaceBindManager(), options.BindInterface)
 		dialer.Control = control.Append(dialer.Control, bindFunc)
 		listener.Control = control.Append(listener.Control, bindFunc)
 	} else if router.AutoDetectInterface() {
-		bindFunc := router.AutoDetectInterfaceFunc()
-		dialer.Control = control.Append(dialer.Control, bindFunc)
-		listener.Control = control.Append(listener.Control, bindFunc)
+		if C.IsWindows {
+			bindFunc := control.BindToInterfaceIndexFunc(func() int {
+				return router.InterfaceMonitor().DefaultInterfaceIndex()
+			})
+			dialer.Control = control.Append(dialer.Control, bindFunc)
+			listener.Control = control.Append(listener.Control, bindFunc)
+		} else {
+			bindFunc := control.BindToInterfaceFunc(router.InterfaceBindManager(), func() string {
+				return router.InterfaceMonitor().DefaultInterfaceName()
+			})
+			dialer.Control = control.Append(dialer.Control, bindFunc)
+			listener.Control = control.Append(listener.Control, bindFunc)
+		}
 	} else if router.DefaultInterface() != "" {
-		bindFunc := control.BindToInterface(router.InterfaceFinder(), router.DefaultInterface(), -1)
+		bindFunc := control.BindToInterface(router.InterfaceBindManager(), router.DefaultInterface())
 		dialer.Control = control.Append(dialer.Control, bindFunc)
 		listener.Control = control.Append(listener.Control, bindFunc)
 	}
@@ -104,86 +108,17 @@ func NewDefault(router adapter.Router, options option.DialerOptions) *DefaultDia
 	if options.TCPFastOpen {
 		warnTFOOnUnsupportedPlatform.Check()
 	}
-	var udpFragment bool
-	if options.UDPFragment != nil {
-		udpFragment = *options.UDPFragment
-	} else {
-		udpFragment = options.UDPFragmentDefault
-	}
-	if !udpFragment {
-		dialer.Control = control.Append(dialer.Control, control.DisableUDPFragment())
-		listener.Control = control.Append(listener.Control, control.DisableUDPFragment())
-	}
-	var (
-		dialer4    = dialer
-		udpDialer4 = dialer
-		udpAddr4   string
-	)
-	if options.Inet4BindAddress != nil {
-		bindAddr := options.Inet4BindAddress.Build()
-		dialer4.LocalAddr = &net.TCPAddr{IP: bindAddr.AsSlice()}
-		udpDialer4.LocalAddr = &net.UDPAddr{IP: bindAddr.AsSlice()}
-		udpAddr4 = M.SocksaddrFrom(bindAddr, 0).String()
-	}
-	var (
-		dialer6    = dialer
-		udpDialer6 = dialer
-		udpAddr6   string
-	)
-	if options.Inet6BindAddress != nil {
-		bindAddr := options.Inet6BindAddress.Build()
-		dialer6.LocalAddr = &net.TCPAddr{IP: bindAddr.AsSlice()}
-		udpDialer6.LocalAddr = &net.UDPAddr{IP: bindAddr.AsSlice()}
-		udpAddr6 = M.SocksaddrFrom(bindAddr, 0).String()
-	}
-	return &DefaultDialer{
-		tfo.Dialer{Dialer: dialer4, DisableTFO: !options.TCPFastOpen},
-		tfo.Dialer{Dialer: dialer6, DisableTFO: !options.TCPFastOpen},
-		udpDialer4,
-		udpDialer6,
-		listener,
-		udpAddr4,
-		udpAddr6,
-	}
+	return &DefaultDialer{tfo.Dialer{Dialer: dialer, DisableTFO: !options.TCPFastOpen}, listener}
 }
 
 func (d *DefaultDialer) DialContext(ctx context.Context, network string, address M.Socksaddr) (net.Conn, error) {
-	if !address.IsValid() {
-		return nil, E.New("invalid address")
-	}
-	switch N.NetworkName(network) {
-	case N.NetworkUDP:
-		if !address.IsIPv6() {
-			return trackConn(d.udpDialer4.DialContext(ctx, network, address.String()))
-		} else {
-			return trackConn(d.udpDialer6.DialContext(ctx, network, address.String()))
-		}
-	}
-	if !address.IsIPv6() {
-		return trackConn(DialSlowContext(&d.dialer4, ctx, network, address))
-	} else {
-		return trackConn(DialSlowContext(&d.dialer6, ctx, network, address))
-	}
+	return d.Dialer.DialContext(ctx, network, address.Unwrap().String())
 }
 
 func (d *DefaultDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
-	if !destination.IsIPv6() {
-		return trackPacketConn(d.udpListener.ListenPacket(ctx, N.NetworkUDP, d.udpAddr4))
-	} else {
-		return trackPacketConn(d.udpListener.ListenPacket(ctx, N.NetworkUDP, d.udpAddr6))
-	}
+	return d.ListenConfig.ListenPacket(ctx, N.NetworkUDP, "")
 }
 
-func trackConn(conn net.Conn, err error) (net.Conn, error) {
-	if !conntrack.Enabled || err != nil {
-		return conn, err
-	}
-	return conntrack.NewConn(conn)
-}
-
-func trackPacketConn(conn net.PacketConn, err error) (net.PacketConn, error) {
-	if !conntrack.Enabled || err != nil {
-		return conn, err
-	}
-	return conntrack.NewPacketConn(conn)
+func (d *DefaultDialer) Upstream() any {
+	return &d.Dialer
 }

common/dialer/dialer.go

@@ -10,12 +10,15 @@ import (
 )
 
 func New(router adapter.Router, options option.DialerOptions) N.Dialer {
-	var dialer N.Dialer
 	if options.Detour == "" {
-		dialer = NewDefault(router, options)
+		return NewDefault(router, options)
 	} else {
-		dialer = NewDetour(router, options.Detour)
+		return NewDetour(router, options.Detour)
 	}
+}
+
+func NewOutbound(router adapter.Router, options option.OutboundDialerOptions) N.Dialer {
+	dialer := New(router, options.DialerOptions)
 	domainStrategy := dns.DomainStrategy(options.DomainStrategy)
 	if domainStrategy != dns.DomainStrategyAsIS || options.Detour == "" {
 		dialer = NewResolveDialer(router, dialer, domainStrategy, time.Duration(options.FallbackDelay))

common/dialer/resolve.go

@@ -9,7 +9,6 @@ import (
 	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-dns"
-	"github.com/sagernet/sing/common/bufio"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
 )
@@ -52,7 +51,7 @@ func (d *ResolveDialer) DialContext(ctx context.Context, network string, destina
 }
 
 func (d *ResolveDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
-	if !destination.IsFqdn() {
+	if !destination.IsFqdn() || destination.Fqdn == "" {
 		return d.dialer.ListenPacket(ctx, destination)
 	}
 	ctx, metadata := adapter.AppendContext(ctx)
@@ -69,11 +68,11 @@ func (d *ResolveDialer) ListenPacket(ctx context.Context, destination M.Socksadd
 	if err != nil {
 		return nil, err
 	}
-	conn, destinationAddress, err := N.ListenSerial(ctx, d.dialer, destination, addresses)
+	conn, err := N.ListenSerial(ctx, d.dialer, destination, addresses)
 	if err != nil {
 		return nil, err
 	}
-	return bufio.NewNATPacketConn(bufio.NewPacketConn(conn), destination, M.SocksaddrFrom(destinationAddress, destination.Port)), nil
+	return NewResolvePacketConn(ctx, d.router, d.strategy, conn), nil
 }
 
 func (d *ResolveDialer) Upstream() any {

common/dialer/resolve_conn.go

@@ -0,0 +1,84 @@
+package dialer
+
+import (
+	"context"
+	"net"
+
+	"github.com/sagernet/sing-box/adapter"
+	"github.com/sagernet/sing-dns"
+	"github.com/sagernet/sing/common"
+	"github.com/sagernet/sing/common/buf"
+	M "github.com/sagernet/sing/common/metadata"
+	N "github.com/sagernet/sing/common/network"
+)
+
+func NewResolvePacketConn(ctx context.Context, router adapter.Router, strategy dns.DomainStrategy, conn net.PacketConn) N.NetPacketConn {
+	if udpConn, ok := conn.(*net.UDPConn); ok {
+		return &ResolveUDPConn{udpConn, ctx, router, strategy}
+	} else {
+		return &ResolvePacketConn{conn, ctx, router, strategy}
+	}
+}
+
+type ResolveUDPConn struct {
+	*net.UDPConn
+	ctx      context.Context
+	router   adapter.Router
+	strategy dns.DomainStrategy
+}
+
+func (w *ResolveUDPConn) ReadPacket(buffer *buf.Buffer) (M.Socksaddr, error) {
+	n, addr, err := w.ReadFromUDPAddrPort(buffer.FreeBytes())
+	if err != nil {
+		return M.Socksaddr{}, err
+	}
+	buffer.Truncate(n)
+	return M.SocksaddrFromNetIP(addr), nil
+}
+
+func (w *ResolveUDPConn) WritePacket(buffer *buf.Buffer, destination M.Socksaddr) error {
+	defer buffer.Release()
+	if destination.IsFqdn() {
+		addresses, err := w.router.Lookup(w.ctx, destination.Fqdn, w.strategy)
+		if err != nil {
+			return err
+		}
+		return common.Error(w.UDPConn.WriteToUDPAddrPort(buffer.Bytes(), M.SocksaddrFrom(addresses[0], destination.Port).AddrPort()))
+	}
+	return common.Error(w.UDPConn.WriteToUDPAddrPort(buffer.Bytes(), destination.AddrPort()))
+}
+
+func (w *ResolveUDPConn) Upstream() any {
+	return w.UDPConn
+}
+
+type ResolvePacketConn struct {
+	net.PacketConn
+	ctx      context.Context
+	router   adapter.Router
+	strategy dns.DomainStrategy
+}
+
+func (w *ResolvePacketConn) ReadPacket(buffer *buf.Buffer) (M.Socksaddr, error) {
+	_, addr, err := buffer.ReadPacketFrom(w)
+	if err != nil {
+		return M.Socksaddr{}, err
+	}
+	return M.SocksaddrFromNet(addr), err
+}
+
+func (w *ResolvePacketConn) WritePacket(buffer *buf.Buffer, destination M.Socksaddr) error {
+	defer buffer.Release()
+	if destination.IsFqdn() {
+		addresses, err := w.router.Lookup(w.ctx, destination.Fqdn, w.strategy)
+		if err != nil {
+			return err
+		}
+		return common.Error(w.WriteTo(buffer.Bytes(), M.SocksaddrFrom(addresses[0], destination.Port).UDPAddr()))
+	}
+	return common.Error(w.WriteTo(buffer.Bytes(), destination.UDPAddr()))
+}
+
+func (w *ResolvePacketConn) Upstream() any {
+	return w.PacketConn
+}

common/dialer/tfo.go

@@ -1,150 +0,0 @@
-package dialer
-
-import (
-	"context"
-	"io"
-	"net"
-	"os"
-	"time"
-
-	"github.com/sagernet/sing/common"
-	"github.com/sagernet/sing/common/bufio"
-	E "github.com/sagernet/sing/common/exceptions"
-	M "github.com/sagernet/sing/common/metadata"
-	N "github.com/sagernet/sing/common/network"
-	"github.com/sagernet/tfo-go"
-)
-
-type slowOpenConn struct {
-	dialer      *tfo.Dialer
-	ctx         context.Context
-	network     string
-	destination M.Socksaddr
-	conn        net.Conn
-	create      chan struct{}
-	err         error
-}
-
-func DialSlowContext(dialer *tfo.Dialer, ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
-	if dialer.DisableTFO || N.NetworkName(network) != N.NetworkTCP {
-		switch N.NetworkName(network) {
-		case N.NetworkTCP, N.NetworkUDP:
-			return dialer.Dialer.DialContext(ctx, network, destination.String())
-		default:
-			return dialer.Dialer.DialContext(ctx, network, destination.AddrString())
-		}
-	}
-	return &slowOpenConn{
-		dialer:      dialer,
-		ctx:         ctx,
-		network:     network,
-		destination: destination,
-		create:      make(chan struct{}),
-	}, nil
-}
-
-func (c *slowOpenConn) Read(b []byte) (n int, err error) {
-	if c.conn == nil {
-		select {
-		case <-c.create:
-			if c.err != nil {
-				return 0, c.err
-			}
-		case <-c.ctx.Done():
-			return 0, c.ctx.Err()
-		}
-	}
-	return c.conn.Read(b)
-}
-
-func (c *slowOpenConn) Write(b []byte) (n int, err error) {
-	if c.conn == nil {
-		c.conn, err = c.dialer.DialContext(c.ctx, c.network, c.destination.String(), b)
-		if err != nil {
-			c.err = E.Cause(err, "dial tcp fast open")
-		}
-		close(c.create)
-		return
-	}
-	return c.conn.Write(b)
-}
-
-func (c *slowOpenConn) Close() error {
-	return common.Close(c.conn)
-}
-
-func (c *slowOpenConn) LocalAddr() net.Addr {
-	if c.conn == nil {
-		return M.Socksaddr{}
-	}
-	return c.conn.LocalAddr()
-}
-
-func (c *slowOpenConn) RemoteAddr() net.Addr {
-	if c.conn == nil {
-		return M.Socksaddr{}
-	}
-	return c.conn.RemoteAddr()
-}
-
-func (c *slowOpenConn) SetDeadline(t time.Time) error {
-	if c.conn == nil {
-		return os.ErrInvalid
-	}
-	return c.conn.SetDeadline(t)
-}
-
-func (c *slowOpenConn) SetReadDeadline(t time.Time) error {
-	if c.conn == nil {
-		return os.ErrInvalid
-	}
-	return c.conn.SetReadDeadline(t)
-}
-
-func (c *slowOpenConn) SetWriteDeadline(t time.Time) error {
-	if c.conn == nil {
-		return os.ErrInvalid
-	}
-	return c.conn.SetWriteDeadline(t)
-}
-
-func (c *slowOpenConn) Upstream() any {
-	return c.conn
-}
-
-func (c *slowOpenConn) ReaderReplaceable() bool {
-	return c.conn != nil
-}
-
-func (c *slowOpenConn) WriterReplaceable() bool {
-	return c.conn != nil
-}
-
-func (c *slowOpenConn) LazyHeadroom() bool {
-	return c.conn == nil
-}
-
-func (c *slowOpenConn) NeedHandshake() bool {
-	return c.conn == nil
-}
-
-func (c *slowOpenConn) ReadFrom(r io.Reader) (n int64, err error) {
-	if c.conn != nil {
-		return bufio.Copy(c.conn, r)
-	}
-	return bufio.ReadFrom0(c, r)
-}
-
-func (c *slowOpenConn) WriteTo(w io.Writer) (n int64, err error) {
-	if c.conn == nil {
-		select {
-		case <-c.create:
-			if c.err != nil {
-				return 0, c.err
-			}
-		case <-c.ctx.Done():
-			return 0, c.ctx.Err()
-		}
-	}
-	return bufio.Copy(w, c.conn)
-}

common/dialer/tls.go

@@ -1,50 +1,30 @@
-package tls
+package dialer
 
 import (
+	"context"
 	"crypto/tls"
 	"crypto/x509"
 	"net"
 	"net/netip"
 	"os"
 
-	"github.com/sagernet/sing-box/adapter"
+	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/option"
 	E "github.com/sagernet/sing/common/exceptions"
+	M "github.com/sagernet/sing/common/metadata"
+	N "github.com/sagernet/sing/common/network"
 )
 
-type STDClientConfig struct {
+type TLSDialer struct {
+	dialer N.Dialer
 	config *tls.Config
 }
 
-func (s *STDClientConfig) ServerName() string {
-	return s.config.ServerName
-}
+func NewTLS(dialer N.Dialer, serverAddress string, options option.OutboundTLSOptions) (N.Dialer, error) {
+	if !options.Enabled {
+		return dialer, nil
+	}
 
-func (s *STDClientConfig) SetServerName(serverName string) {
-	s.config.ServerName = serverName
-}
-
-func (s *STDClientConfig) NextProtos() []string {
-	return s.config.NextProtos
-}
-
-func (s *STDClientConfig) SetNextProtos(nextProto []string) {
-	s.config.NextProtos = nextProto
-}
-
-func (s *STDClientConfig) Config() (*STDConfig, error) {
-	return s.config, nil
-}
-
-func (s *STDClientConfig) Client(conn net.Conn) (Conn, error) {
-	return tls.Client(conn, s.config), nil
-}
-
-func (s *STDClientConfig) Clone() Config {
-	return &STDClientConfig{s.config.Clone()}
-}
-
-func NewSTDClient(router adapter.Router, serverAddress string, options option.OutboundTLSOptions) (Config, error) {
 	var serverName string
 	if options.ServerName != "" {
 		serverName = options.ServerName
@@ -53,12 +33,11 @@ func NewSTDClient(router adapter.Router, serverAddress string, options option.Ou
 			serverName = serverAddress
 		}
 	}
-	if serverName == "" && !options.Insecure {
+	if serverName == "" && options.Insecure {
 		return nil, E.New("missing server_name or insecure=true")
 	}
 
 	var tlsConfig tls.Config
-	tlsConfig.Time = router.TimeFunc()
 	if options.DisableSNI {
 		tlsConfig.ServerName = "127.0.0.1"
 	} else {
@@ -84,14 +63,14 @@ func NewSTDClient(router adapter.Router, serverAddress string, options option.Ou
 		tlsConfig.NextProtos = options.ALPN
 	}
 	if options.MinVersion != "" {
-		minVersion, err := ParseTLSVersion(options.MinVersion)
+		minVersion, err := option.ParseTLSVersion(options.MinVersion)
 		if err != nil {
 			return nil, E.Cause(err, "parse min_version")
 		}
 		tlsConfig.MinVersion = minVersion
 	}
 	if options.MaxVersion != "" {
-		maxVersion, err := ParseTLSVersion(options.MaxVersion)
+		maxVersion, err := option.ParseTLSVersion(options.MaxVersion)
 		if err != nil {
 			return nil, E.Cause(err, "parse max_version")
 		}
@@ -126,5 +105,27 @@ func NewSTDClient(router adapter.Router, serverAddress string, options option.Ou
 		}
 		tlsConfig.RootCAs = certPool
 	}
-	return &STDClientConfig{&tlsConfig}, nil
+	return &TLSDialer{
+		dialer: dialer,
+		config: &tlsConfig,
+	}, nil
+}
+
+func (d *TLSDialer) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
+	if network != N.NetworkTCP {
+		return nil, os.ErrInvalid
+	}
+	conn, err := d.dialer.DialContext(ctx, network, destination)
+	if err != nil {
+		return nil, err
+	}
+	tlsConn := tls.Client(conn, d.config)
+	ctx, cancel := context.WithTimeout(ctx, C.TCPTimeout)
+	defer cancel()
+	err = tlsConn.HandshakeContext(ctx)
+	return tlsConn, err
+}
+
+func (d *TLSDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
+	return nil, os.ErrInvalid
 }

common/geoip/reader.go

@@ -4,6 +4,7 @@ import (
 	"net/netip"
 
 	E "github.com/sagernet/sing/common/exceptions"
+	N "github.com/sagernet/sing/common/network"
 
 	"github.com/oschwald/maxminddb-golang"
 )
@@ -30,5 +31,8 @@ func (r *Reader) Lookup(addr netip.Addr) string {
 	if code != "" {
 		return code
 	}
+	if !N.IsPublicAddr(addr) {
+		return "private"
+	}
 	return "unknown"
 }

common/geosite/writer.go

@@ -20,11 +20,13 @@ func Write(writer io.Writer, domains map[string][]Item) error {
 	for _, code := range keys {
 		index[code] = content.Len()
 		for _, domain := range domains[code] {
-			content.WriteByte(domain.Type)
-			err := rw.WriteVString(content, domain.Value)
+			err := rw.WriteByte(content, domain.Type)
 			if err != nil {
 				return err
 			}
+			if err = rw.WriteVString(content, domain.Value); err != nil {
+				return err
+			}
 		}
 	}
 

common/json/comment.go

@@ -1,128 +0,0 @@
-package json
-
-import (
-	"bufio"
-	"io"
-)
-
-// kanged from v2ray
-
-type commentFilterState = byte
-
-const (
-	commentFilterStateContent commentFilterState = iota
-	commentFilterStateEscape
-	commentFilterStateDoubleQuote
-	commentFilterStateDoubleQuoteEscape
-	commentFilterStateSingleQuote
-	commentFilterStateSingleQuoteEscape
-	commentFilterStateComment
-	commentFilterStateSlash
-	commentFilterStateMultilineComment
-	commentFilterStateMultilineCommentStar
-)
-
-type CommentFilter struct {
-	br    *bufio.Reader
-	state commentFilterState
-}
-
-func NewCommentFilter(reader io.Reader) io.Reader {
-	return &CommentFilter{br: bufio.NewReader(reader)}
-}
-
-func (v *CommentFilter) Read(b []byte) (int, error) {
-	p := b[:0]
-	for len(p) < len(b)-2 {
-		x, err := v.br.ReadByte()
-		if err != nil {
-			if len(p) == 0 {
-				return 0, err
-			}
-			return len(p), nil
-		}
-		switch v.state {
-		case commentFilterStateContent:
-			switch x {
-			case '"':
-				v.state = commentFilterStateDoubleQuote
-				p = append(p, x)
-			case '\'':
-				v.state = commentFilterStateSingleQuote
-				p = append(p, x)
-			case '\\':
-				v.state = commentFilterStateEscape
-			case '#':
-				v.state = commentFilterStateComment
-			case '/':
-				v.state = commentFilterStateSlash
-			default:
-				p = append(p, x)
-			}
-		case commentFilterStateEscape:
-			p = append(p, '\\', x)
-			v.state = commentFilterStateContent
-		case commentFilterStateDoubleQuote:
-			switch x {
-			case '"':
-				v.state = commentFilterStateContent
-				p = append(p, x)
-			case '\\':
-				v.state = commentFilterStateDoubleQuoteEscape
-			default:
-				p = append(p, x)
-			}
-		case commentFilterStateDoubleQuoteEscape:
-			p = append(p, '\\', x)
-			v.state = commentFilterStateDoubleQuote
-		case commentFilterStateSingleQuote:
-			switch x {
-			case '\'':
-				v.state = commentFilterStateContent
-				p = append(p, x)
-			case '\\':
-				v.state = commentFilterStateSingleQuoteEscape
-			default:
-				p = append(p, x)
-			}
-		case commentFilterStateSingleQuoteEscape:
-			p = append(p, '\\', x)
-			v.state = commentFilterStateSingleQuote
-		case commentFilterStateComment:
-			if x == '\n' {
-				v.state = commentFilterStateContent
-				p = append(p, '\n')
-			}
-		case commentFilterStateSlash:
-			switch x {
-			case '/':
-				v.state = commentFilterStateComment
-			case '*':
-				v.state = commentFilterStateMultilineComment
-			default:
-				p = append(p, '/', x)
-			}
-		case commentFilterStateMultilineComment:
-			switch x {
-			case '*':
-				v.state = commentFilterStateMultilineCommentStar
-			case '\n':
-				p = append(p, '\n')
-			}
-		case commentFilterStateMultilineCommentStar:
-			switch x {
-			case '/':
-				v.state = commentFilterStateContent
-			case '*':
-				// Stay
-			case '\n':
-				p = append(p, '\n')
-			default:
-				v.state = commentFilterStateMultilineComment
-			}
-		default:
-			panic("Unknown state.")
-		}
-	}
-	return len(p), nil
-}

common/mux/client.go

@@ -329,23 +329,6 @@ func (c *ClientPacketConn) Write(b []byte) (n int, err error) {
 	return c.ExtendedConn.Write(b)
 }
 
-func (c *ClientPacketConn) ReadBuffer(buffer *buf.Buffer) (err error) {
-	if !c.responseRead {
-		err = c.readResponse()
-		if err != nil {
-			return
-		}
-		c.responseRead = true
-	}
-	var length uint16
-	err = binary.Read(c.ExtendedConn, binary.BigEndian, &length)
-	if err != nil {
-		return
-	}
-	_, err = buffer.ReadFullFrom(c.ExtendedConn, int(length))
-	return
-}
-
 func (c *ClientPacketConn) WriteBuffer(buffer *buf.Buffer) error {
 	if !c.requestWrite {
 		defer buffer.Release()
@@ -360,11 +343,6 @@ func (c *ClientPacketConn) FrontHeadroom() int {
 	return 2
 }
 
-func (c *ClientPacketConn) ReadPacket(buffer *buf.Buffer) (destination M.Socksaddr, err error) {
-	err = c.ReadBuffer(buffer)
-	return
-}
-
 func (c *ClientPacketConn) WritePacket(buffer *buf.Buffer, destination M.Socksaddr) error {
 	return c.WriteBuffer(buffer)
 }
@@ -488,7 +466,10 @@ func (c *ClientPacketAddrConn) ReadPacket(buffer *buf.Buffer) (destination M.Soc
 	if err != nil {
 		return
 	}
-	_, err = buffer.ReadFullFrom(c.ExtendedConn, int(length))
+	if buffer.FreeLen() < int(length) {
+		return destination, io.ErrShortBuffer
+	}
+	_, err = io.ReadFull(c.ExtendedConn, buffer.Extend(int(length)))
 	return
 }
 

common/mux/protocol.go

@@ -43,7 +43,7 @@ func ParseProtocol(name string) (Protocol, error) {
 func (p Protocol) newServer(conn net.Conn) (abstractSession, error) {
 	switch p {
 	case ProtocolSMux:
-		session, err := smux.Server(conn, smuxConfig())
+		session, err := smux.Server(conn, nil)
 		if err != nil {
 			return nil, err
 		}
@@ -58,7 +58,7 @@ func (p Protocol) newServer(conn net.Conn) (abstractSession, error) {
 func (p Protocol) newClient(conn net.Conn) (abstractSession, error) {
 	switch p {
 	case ProtocolSMux:
-		session, err := smux.Client(conn, smuxConfig())
+		session, err := smux.Client(conn, nil)
 		if err != nil {
 			return nil, err
 		}
@@ -70,12 +70,6 @@ func (p Protocol) newClient(conn net.Conn) (abstractSession, error) {
 	}
 }
 
-func smuxConfig() *smux.Config {
-	config := smux.DefaultConfig()
-	config.KeepAliveDisabled = true
-	return config
-}
-
 func yaMuxConfig() *yamux.Config {
 	config := yamux.DefaultConfig()
 	config.LogOutput = io.Discard

common/mux/service.go

@@ -3,6 +3,7 @@ package mux
 import (
 	"context"
 	"encoding/binary"
+	"io"
 	"net"
 
 	"github.com/sagernet/sing-box/adapter"
@@ -14,7 +15,6 @@ import (
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
 	"github.com/sagernet/sing/common/rw"
-	"github.com/sagernet/sing/common/task"
 )
 
 func NewConnection(ctx context.Context, router adapter.Router, errorHandler E.Handler, logger log.ContextLogger, conn net.Conn, metadata adapter.InboundContext) error {
@@ -26,21 +26,14 @@ func NewConnection(ctx context.Context, router adapter.Router, errorHandler E.Ha
 	if err != nil {
 		return err
 	}
-	var group task.Group
-	group.Append0(func(ctx context.Context) error {
-		var stream net.Conn
-		for {
-			stream, err = session.Accept()
-			if err != nil {
-				return err
-			}
-			go newConnection(ctx, router, errorHandler, logger, stream, metadata)
+	var stream net.Conn
+	for {
+		stream, err = session.Accept()
+		if err != nil {
+			return err
 		}
-	})
-	group.Cleanup(func() {
-		session.Close()
-	})
-	return group.Run(ctx)
+		go newConnection(ctx, router, errorHandler, logger, stream, metadata)
+	}
 }
 
 func newConnection(ctx context.Context, router adapter.Router, errorHandler E.Handler, logger log.ContextLogger, stream net.Conn, metadata adapter.InboundContext) {
@@ -165,6 +158,9 @@ func (c *ServerPacketConn) ReadPacket(buffer *buf.Buffer) (destination M.Socksad
 	if err != nil {
 		return
 	}
+	if buffer.FreeLen() < int(length) {
+		return destination, io.ErrShortBuffer
+	}
 	_, err = buffer.ReadFullFrom(c.ExtendedConn, int(length))
 	if err != nil {
 		return
@@ -227,6 +223,9 @@ func (c *ServerPacketAddrConn) ReadPacket(buffer *buf.Buffer) (destination M.Soc
 	if err != nil {
 		return
 	}
+	if buffer.FreeLen() < int(length) {
+		return destination, io.ErrShortBuffer
+	}
 	_, err = buffer.ReadFullFrom(c.ExtendedConn, int(length))
 	if err != nil {
 		return

common/process/searcher.go

@@ -4,29 +4,18 @@ import (
 	"context"
 	"net/netip"
 
-	"github.com/sagernet/sing-box/log"
-	"github.com/sagernet/sing-tun"
 	E "github.com/sagernet/sing/common/exceptions"
 )
 
 type Searcher interface {
-	FindProcessInfo(ctx context.Context, network string, source netip.AddrPort, destination netip.AddrPort) (*Info, error)
+	FindProcessInfo(ctx context.Context, network string, srcIP netip.Addr, srcPort int) (*Info, error)
 }
 
 var ErrNotFound = E.New("process not found")
 
-type Config struct {
-	Logger         log.ContextLogger
-	PackageManager tun.PackageManager
-}
-
 type Info struct {
 	ProcessPath string
 	PackageName string
 	User        string
 	UserId      int32
 }
-
-func FindProcessInfo(searcher Searcher, ctx context.Context, network string, source netip.AddrPort, destination netip.AddrPort) (*Info, error) {
-	return findProcessInfo(searcher, ctx, network, source, destination)
-}

common/process/searcher_android.go

@@ -2,37 +2,170 @@ package process
 
 import (
 	"context"
+	"encoding/xml"
+	"io"
 	"net/netip"
+	"os"
+	"strconv"
 
-	"github.com/sagernet/sing-tun"
+	"github.com/sagernet/sing-box/log"
+	"github.com/sagernet/sing/common"
+	E "github.com/sagernet/sing/common/exceptions"
+
+	"github.com/fsnotify/fsnotify"
 )
 
 var _ Searcher = (*androidSearcher)(nil)
 
 type androidSearcher struct {
-	packageManager tun.PackageManager
+	logger        log.ContextLogger
+	watcher       *fsnotify.Watcher
+	userMap       map[string]int32
+	packageMap    map[int32]string
+	sharedUserMap map[int32]string
 }
 
-func NewSearcher(config Config) (Searcher, error) {
-	return &androidSearcher{config.PackageManager}, nil
+func NewSearcher(logger log.ContextLogger) (Searcher, error) {
+	return &androidSearcher{logger: logger}, nil
 }
 
-func (s *androidSearcher) FindProcessInfo(ctx context.Context, network string, source netip.AddrPort, destination netip.AddrPort) (*Info, error) {
-	_, uid, err := resolveSocketByNetlink(network, source, destination)
+func (s *androidSearcher) Start() error {
+	err := s.updatePackages()
+	if err != nil {
+		return E.Cause(err, "read packages list")
+	}
+	err = s.startWatcher()
+	if err != nil {
+		s.logger.Warn("create fsnotify watcher: ", err)
+	}
+	return nil
+}
+
+func (s *androidSearcher) startWatcher() error {
+	watcher, err := fsnotify.NewWatcher()
+	if err != nil {
+		return err
+	}
+	err = watcher.Add("/data/system/packages.xml")
+	if err != nil {
+		return err
+	}
+	s.watcher = watcher
+	go s.loopUpdate()
+	return nil
+}
+
+func (s *androidSearcher) loopUpdate() {
+	for {
+		select {
+		case _, ok := <-s.watcher.Events:
+			if !ok {
+				return
+			}
+			err := s.updatePackages()
+			if err != nil {
+				s.logger.Error(E.Cause(err, "update packages list"))
+			}
+		case err, ok := <-s.watcher.Errors:
+			if !ok {
+				return
+			}
+			s.logger.Error(E.Cause(err, "fsnotify error"))
+		}
+	}
+}
+
+func (s *androidSearcher) Close() error {
+	return common.Close(common.PtrOrNil(s.watcher))
+}
+
+func (s *androidSearcher) FindProcessInfo(ctx context.Context, network string, srcIP netip.Addr, srcPort int) (*Info, error) {
+	_, uid, err := resolveSocketByNetlink(network, srcIP, srcPort)
 	if err != nil {
 		return nil, err
 	}
-	if sharedPackage, loaded := s.packageManager.SharedPackageByID(uid % 100000); loaded {
+	if sharedUser, loaded := s.sharedUserMap[uid]; loaded {
 		return &Info{
-			UserId:      int32(uid),
-			PackageName: sharedPackage,
+			UserId:      uid,
+			PackageName: sharedUser,
 		}, nil
 	}
-	if packageName, loaded := s.packageManager.PackageByID(uid % 100000); loaded {
+	if packageName, loaded := s.packageMap[uid]; loaded {
 		return &Info{
-			UserId:      int32(uid),
+			UserId:      uid,
 			PackageName: packageName,
 		}, nil
 	}
-	return &Info{UserId: int32(uid)}, nil
+	return &Info{UserId: uid}, nil
+}
+
+func (s *androidSearcher) updatePackages() error {
+	userMap := make(map[string]int32)
+	packageMap := make(map[int32]string)
+	sharedUserMap := make(map[int32]string)
+	packagesData, err := os.Open("/data/system/packages.xml")
+	if err != nil {
+		return err
+	}
+	decoder := xml.NewDecoder(packagesData)
+	var token xml.Token
+	for {
+		token, err = decoder.Token()
+		if err == io.EOF {
+			break
+		} else if err != nil {
+			return err
+		}
+
+		element, isStart := token.(xml.StartElement)
+		if !isStart {
+			continue
+		}
+
+		switch element.Name.Local {
+		case "package":
+			var name string
+			var userID int64
+			for _, attr := range element.Attr {
+				switch attr.Name.Local {
+				case "name":
+					name = attr.Value
+				case "userId", "sharedUserId":
+					userID, err = strconv.ParseInt(attr.Value, 10, 32)
+					if err != nil {
+						return err
+					}
+				}
+			}
+			if userID == 0 && name == "" {
+				continue
+			}
+			userMap[name] = int32(userID)
+			packageMap[int32(userID)] = name
+		case "shared-user":
+			var name string
+			var userID int64
+			for _, attr := range element.Attr {
+				switch attr.Name.Local {
+				case "name":
+					name = attr.Value
+				case "userId":
+					userID, err = strconv.ParseInt(attr.Value, 10, 32)
+					if err != nil {
+						return err
+					}
+					packageMap[int32(userID)] = name
+				}
+			}
+			if userID == 0 && name == "" {
+				continue
+			}
+			sharedUserMap[int32(userID)] = name
+		}
+	}
+	s.logger.Info("updated packages list: ", len(packageMap), " packages, ", len(sharedUserMap), " shared users")
+	s.userMap = userMap
+	s.packageMap = packageMap
+	s.sharedUserMap = sharedUserMap
+	return nil
 }

common/process/searcher_darwin.go

@@ -5,11 +5,10 @@ import (
 	"encoding/binary"
 	"net/netip"
 	"os"
-	"strconv"
-	"strings"
 	"syscall"
 	"unsafe"
 
+	"github.com/sagernet/sing-box/log"
 	N "github.com/sagernet/sing/common/network"
 
 	"golang.org/x/sys/unix"
@@ -19,34 +18,18 @@ var _ Searcher = (*darwinSearcher)(nil)
 
 type darwinSearcher struct{}
 
-func NewSearcher(_ Config) (Searcher, error) {
+func NewSearcher(logger log.ContextLogger) (Searcher, error) {
 	return &darwinSearcher{}, nil
 }
 
-func (d *darwinSearcher) FindProcessInfo(ctx context.Context, network string, source netip.AddrPort, destination netip.AddrPort) (*Info, error) {
-	processName, err := findProcessName(network, source.Addr(), int(source.Port()))
+func (d *darwinSearcher) FindProcessInfo(ctx context.Context, network string, srcIP netip.Addr, srcPort int) (*Info, error) {
+	processName, err := findProcessName(network, srcIP, srcPort)
 	if err != nil {
 		return nil, err
 	}
 	return &Info{ProcessPath: processName, UserId: -1}, nil
 }
 
-var structSize = func() int {
-	value, _ := syscall.Sysctl("kern.osrelease")
-	major, _, _ := strings.Cut(value, ".")
-	n, _ := strconv.ParseInt(major, 10, 64)
-	switch true {
-	case n >= 22:
-		return 408
-	default:
-		// from darwin-xnu/bsd/netinet/in_pcblist.c:get_pcblist_n
-		// size/offset are round up (aligned) to 8 bytes in darwin
-		// rup8(sizeof(xinpcb_n)) + rup8(sizeof(xsocket_n)) +
-		// 2 * rup8(sizeof(xsockbuf_n)) + rup8(sizeof(xsockstat_n))
-		return 384
-	}
-}()
-
 func findProcessName(network string, ip netip.Addr, port int) (string, error) {
 	var spath string
 	switch network {
@@ -71,7 +54,7 @@ func findProcessName(network string, ip netip.Addr, port int) (string, error) {
 	// size/offset are round up (aligned) to 8 bytes in darwin
 	// rup8(sizeof(xinpcb_n)) + rup8(sizeof(xsocket_n)) +
 	// 2 * rup8(sizeof(xsockbuf_n)) + rup8(sizeof(xsockstat_n))
-	itemSize := structSize
+	itemSize := 384
 	if network == N.NetworkTCP {
 		// rup8(sizeof(xtcpcb_n))
 		itemSize += 208

common/process/searcher_linux.go

@@ -15,12 +15,12 @@ type linuxSearcher struct {
 	logger log.ContextLogger
 }
 
-func NewSearcher(config Config) (Searcher, error) {
-	return &linuxSearcher{config.Logger}, nil
+func NewSearcher(logger log.ContextLogger) (Searcher, error) {
+	return &linuxSearcher{logger}, nil
 }
 
-func (s *linuxSearcher) FindProcessInfo(ctx context.Context, network string, source netip.AddrPort, destination netip.AddrPort) (*Info, error) {
-	inode, uid, err := resolveSocketByNetlink(network, source, destination)
+func (s *linuxSearcher) FindProcessInfo(ctx context.Context, network string, srcIP netip.Addr, srcPort int) (*Info, error) {
+	inode, uid, err := resolveSocketByNetlink(network, srcIP, srcPort)
 	if err != nil {
 		return nil, err
 	}
@@ -29,7 +29,7 @@ func (s *linuxSearcher) FindProcessInfo(ctx context.Context, network string, sou
 		s.logger.DebugContext(ctx, "find process path: ", err)
 	}
 	return &Info{
-		UserId:      int32(uid),
+		UserId:      uid,
 		ProcessPath: processPath,
 	}, nil
 }

common/process/searcher_linux_shared.go

@@ -37,9 +37,19 @@ const (
 	pathProc                = "/proc"
 )
 
-func resolveSocketByNetlink(network string, source netip.AddrPort, destination netip.AddrPort) (inode, uid uint32, err error) {
-	var family uint8
-	var protocol uint8
+func resolveSocketByNetlink(network string, ip netip.Addr, srcPort int) (inode int32, uid int32, err error) {
+	for attempts := 0; attempts < 3; attempts++ {
+		inode, uid, err = resolveSocketByNetlink0(network, ip, srcPort)
+		if err == nil {
+			return
+		}
+	}
+	return
+}
+
+func resolveSocketByNetlink0(network string, ip netip.Addr, srcPort int) (inode int32, uid int32, err error) {
+	var family byte
+	var protocol byte
 
 	switch network {
 	case N.NetworkTCP:
@@ -50,13 +60,13 @@ func resolveSocketByNetlink(network string, source netip.AddrPort, destination n
 		return 0, 0, os.ErrInvalid
 	}
 
-	if source.Addr().Is4() {
+	if ip.Is4() {
 		family = syscall.AF_INET
 	} else {
 		family = syscall.AF_INET6
 	}
 
-	req := packSocketDiagRequest(family, protocol, source)
+	req := packSocketDiagRequest(family, protocol, ip, uint16(srcPort))
 
 	socket, err := syscall.Socket(syscall.AF_NETLINK, syscall.SOCK_DGRAM, syscall.NETLINK_INET_DIAG)
 	if err != nil {
@@ -67,18 +77,16 @@ func resolveSocketByNetlink(network string, source netip.AddrPort, destination n
 	syscall.SetsockoptTimeval(socket, syscall.SOL_SOCKET, syscall.SO_SNDTIMEO, &syscall.Timeval{Usec: 100})
 	syscall.SetsockoptTimeval(socket, syscall.SOL_SOCKET, syscall.SO_RCVTIMEO, &syscall.Timeval{Usec: 100})
 
-	err = syscall.Connect(socket, &syscall.SockaddrNetlink{
+	if err = syscall.Connect(socket, &syscall.SockaddrNetlink{
 		Family: syscall.AF_NETLINK,
 		Pad:    0,
 		Pid:    0,
 		Groups: 0,
-	})
-	if err != nil {
-		return
+	}); err != nil {
+		return 0, 0, err
 	}
 
-	_, err = syscall.Write(socket, req)
-	if err != nil {
+	if _, err = syscall.Write(socket, req); err != nil {
 		return 0, 0, E.Cause(err, "write netlink request")
 	}
 
@@ -107,12 +115,15 @@ func resolveSocketByNetlink(network string, source netip.AddrPort, destination n
 	}
 
 	inode, uid = unpackSocketDiagResponse(&messages[0])
+	if inode < 0 || uid < 0 {
+		return 0, 0, E.New("invalid inode(", inode, ") or uid(", uid, ")")
+	}
 	return
 }
 
-func packSocketDiagRequest(family, protocol byte, source netip.AddrPort) []byte {
+func packSocketDiagRequest(family, protocol byte, source netip.Addr, sourcePort uint16) []byte {
 	s := make([]byte, 16)
-	copy(s, source.Addr().AsSlice())
+	copy(s, source.AsSlice())
 
 	buf := make([]byte, sizeOfSocketDiagRequest)
 
@@ -128,7 +139,7 @@ func packSocketDiagRequest(family, protocol byte, source netip.AddrPort) []byte
 	buf[19] = 0
 	nativeEndian.PutUint32(buf[20:24], 0xFFFFFFFF)
 
-	binary.BigEndian.PutUint16(buf[24:26], source.Port())
+	binary.BigEndian.PutUint16(buf[24:26], sourcePort)
 	binary.BigEndian.PutUint16(buf[26:28], 0)
 
 	copy(buf[28:44], s)
@@ -140,20 +151,20 @@ func packSocketDiagRequest(family, protocol byte, source netip.AddrPort) []byte
 	return buf
 }
 
-func unpackSocketDiagResponse(msg *syscall.NetlinkMessage) (inode, uid uint32) {
+func unpackSocketDiagResponse(msg *syscall.NetlinkMessage) (inode, uid int32) {
 	if len(msg.Data) < 72 {
 		return 0, 0
 	}
 
 	data := msg.Data
 
-	uid = nativeEndian.Uint32(data[64:68])
-	inode = nativeEndian.Uint32(data[68:72])
+	uid = int32(nativeEndian.Uint32(data[64:68]))
+	inode = int32(nativeEndian.Uint32(data[68:72]))
 
 	return
 }
 
-func resolveProcessNameByProcSearch(inode, uid uint32) (string, error) {
+func resolveProcessNameByProcSearch(inode, uid int32) (string, error) {
 	files, err := os.ReadDir(pathProc)
 	if err != nil {
 		return "", err
@@ -171,7 +182,7 @@ func resolveProcessNameByProcSearch(inode, uid uint32) (string, error) {
 		if err != nil {
 			return "", err
 		}
-		if info.Sys().(*syscall.Stat_t).Uid != uid {
+		if info.Sys().(*syscall.Stat_t).Uid != uint32(uid) {
 			continue
 		}
 

common/process/searcher_stub.go

@@ -4,8 +4,10 @@ package process
 
 import (
 	"os"
+
+	"github.com/sagernet/sing-box/log"
 )
 
-func NewSearcher(_ Config) (Searcher, error) {
+func NewSearcher(logger log.ContextLogger) (Searcher, error) {
 	return nil, os.ErrInvalid
 }

common/process/searcher_windows.go

@@ -8,6 +8,7 @@ import (
 	"syscall"
 	"unsafe"
 
+	"github.com/sagernet/sing-box/log"
 	E "github.com/sagernet/sing/common/exceptions"
 	N "github.com/sagernet/sing/common/network"
 
@@ -18,7 +19,7 @@ var _ Searcher = (*windowsSearcher)(nil)
 
 type windowsSearcher struct{}
 
-func NewSearcher(_ Config) (Searcher, error) {
+func NewSearcher(logger log.ContextLogger) (Searcher, error) {
 	err := initWin32API()
 	if err != nil {
 		return nil, E.Cause(err, "init win32 api")
@@ -63,8 +64,8 @@ func initWin32API() error {
 	return nil
 }
 
-func (s *windowsSearcher) FindProcessInfo(ctx context.Context, network string, source netip.AddrPort, destination netip.AddrPort) (*Info, error) {
-	processName, err := findProcessName(network, source.Addr(), int(source.Port()))
+func (s *windowsSearcher) FindProcessInfo(ctx context.Context, network string, srcIP netip.Addr, srcPort int) (*Info, error) {
+	processName, err := findProcessName(network, srcIP, srcPort)
 	if err != nil {
 		return nil, err
 	}

common/process/searcher_with_name.go

@@ -1,4 +1,4 @@
-//go:build linux && !android
+//go:build cgo && linux && !android
 
 package process
 
@@ -10,8 +10,8 @@ import (
 	F "github.com/sagernet/sing/common/format"
 )
 
-func findProcessInfo(searcher Searcher, ctx context.Context, network string, source netip.AddrPort, destination netip.AddrPort) (*Info, error) {
-	info, err := searcher.FindProcessInfo(ctx, network, source, destination)
+func FindProcessInfo(searcher Searcher, ctx context.Context, network string, srcIP netip.Addr, srcPort int) (*Info, error) {
+	info, err := searcher.FindProcessInfo(ctx, network, srcIP, srcPort)
 	if err != nil {
 		return nil, err
 	}

common/process/searcher_without_name.go

@@ -1,4 +1,4 @@
-//go:build !linux || android
+//go:build !(cgo && linux && !android)
 
 package process
 
@@ -7,6 +7,6 @@ import (
 	"net/netip"
 )
 
-func findProcessInfo(searcher Searcher, ctx context.Context, network string, source netip.AddrPort, destination netip.AddrPort) (*Info, error) {
-	return searcher.FindProcessInfo(ctx, network, source, destination)
+func FindProcessInfo(searcher Searcher, ctx context.Context, network string, srcIP netip.Addr, srcPort int) (*Info, error) {
+	return searcher.FindProcessInfo(ctx, network, srcIP, srcPort)
 }

common/proxyproto/dialer.go

@@ -1,50 +0,0 @@
-package proxyproto
-
-import (
-	"context"
-	"net"
-	"net/netip"
-
-	"github.com/sagernet/sing-box/adapter"
-	E "github.com/sagernet/sing/common/exceptions"
-	M "github.com/sagernet/sing/common/metadata"
-	N "github.com/sagernet/sing/common/network"
-
-	"github.com/pires/go-proxyproto"
-)
-
-var _ N.Dialer = (*Dialer)(nil)
-
-type Dialer struct {
-	N.Dialer
-}
-
-func (d *Dialer) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
-	switch N.NetworkName(network) {
-	case N.NetworkTCP:
-		conn, err := d.Dialer.DialContext(ctx, network, destination)
-		if err != nil {
-			return nil, err
-		}
-		var source M.Socksaddr
-		metadata := adapter.ContextFrom(ctx)
-		if metadata != nil {
-			source = metadata.Source
-		}
-		if !source.IsValid() {
-			source = M.SocksaddrFromNet(conn.LocalAddr())
-		}
-		if destination.Addr.Is6() {
-			source = M.SocksaddrFrom(netip.AddrFrom16(source.Addr.As16()), source.Port)
-		}
-		h := proxyproto.HeaderProxyFromAddrs(1, source.TCPAddr(), destination.TCPAddr())
-		_, err = h.WriteTo(conn)
-		if err != nil {
-			conn.Close()
-			return nil, E.Cause(err, "write proxy protocol header")
-		}
-		return conn, nil
-	default:
-		return d.Dialer.DialContext(ctx, network, destination)
-	}
-}

common/proxyproto/listener.go

@@ -1,62 +0,0 @@
-package proxyproto
-
-import (
-	std_bufio "bufio"
-	"net"
-
-	"github.com/sagernet/sing/common/buf"
-	"github.com/sagernet/sing/common/bufio"
-	M "github.com/sagernet/sing/common/metadata"
-
-	"github.com/pires/go-proxyproto"
-)
-
-type Listener struct {
-	net.Listener
-	AcceptNoHeader bool
-}
-
-func (l *Listener) Accept() (net.Conn, error) {
-	conn, err := l.Listener.Accept()
-	if err != nil {
-		return nil, err
-	}
-	bufReader := std_bufio.NewReader(conn)
-	header, err := proxyproto.Read(bufReader)
-	if err != nil && !(l.AcceptNoHeader && err == proxyproto.ErrNoProxyProtocol) {
-		return nil, &Error{err}
-	}
-	if bufReader.Buffered() > 0 {
-		cache := buf.NewSize(bufReader.Buffered())
-		_, err = cache.ReadFullFrom(bufReader, cache.FreeLen())
-		if err != nil {
-			return nil, &Error{err}
-		}
-		conn = bufio.NewCachedConn(conn, cache)
-	}
-	if header != nil {
-		return &bufio.AddrConn{Conn: conn, Metadata: M.Metadata{
-			Source:      M.SocksaddrFromNet(header.SourceAddr).Unwrap(),
-			Destination: M.SocksaddrFromNet(header.DestinationAddr).Unwrap(),
-		}}, nil
-	}
-	return conn, nil
-}
-
-var _ net.Error = (*Error)(nil)
-
-type Error struct {
-	error
-}
-
-func (e *Error) Unwrap() error {
-	return e.error
-}
-
-func (e *Error) Timeout() bool {
-	return false
-}
-
-func (e *Error) Temporary() bool {
-	return true
-}

common/redir/redir_darwin.go

@@ -1,64 +0,0 @@
-package redir
-
-import (
-	"net"
-	"net/netip"
-	"syscall"
-	"unsafe"
-
-	M "github.com/sagernet/sing/common/metadata"
-)
-
-const (
-	PF_OUT      = 0x2
-	DIOCNATLOOK = 0xc0544417
-)
-
-func GetOriginalDestination(conn net.Conn) (destination netip.AddrPort, err error) {
-	fd, err := syscall.Open("/dev/pf", 0, syscall.O_RDONLY)
-	if err != nil {
-		return netip.AddrPort{}, err
-	}
-	defer syscall.Close(fd)
-	nl := struct {
-		saddr, daddr, rsaddr, rdaddr       [16]byte
-		sxport, dxport, rsxport, rdxport   [4]byte
-		af, proto, protoVariant, direction uint8
-	}{
-		af:        syscall.AF_INET,
-		proto:     syscall.IPPROTO_TCP,
-		direction: PF_OUT,
-	}
-	la := conn.LocalAddr().(*net.TCPAddr)
-	ra := conn.RemoteAddr().(*net.TCPAddr)
-	raIP, laIP := ra.IP, la.IP
-	raPort, laPort := ra.Port, la.Port
-	switch {
-	case raIP.To4() != nil:
-		copy(nl.saddr[:net.IPv4len], raIP.To4())
-		copy(nl.daddr[:net.IPv4len], laIP.To4())
-		nl.af = syscall.AF_INET
-	default:
-		copy(nl.saddr[:], raIP.To16())
-		copy(nl.daddr[:], laIP.To16())
-		nl.af = syscall.AF_INET6
-	}
-	nl.sxport[0], nl.sxport[1] = byte(raPort>>8), byte(raPort)
-	nl.dxport[0], nl.dxport[1] = byte(laPort>>8), byte(laPort)
-	if _, _, errno := syscall.Syscall(syscall.SYS_IOCTL, uintptr(fd), DIOCNATLOOK, uintptr(unsafe.Pointer(&nl))); errno != 0 {
-		return netip.AddrPort{}, errno
-	}
-
-	var ip net.IP
-	switch nl.af {
-	case syscall.AF_INET:
-		ip = make(net.IP, net.IPv4len)
-		copy(ip, nl.rdaddr[:net.IPv4len])
-	case syscall.AF_INET6:
-		ip = make(net.IP, net.IPv6len)
-		copy(ip, nl.rdaddr[:])
-	}
-	port := uint16(nl.rdxport[0])<<8 | uint16(nl.rdxport[1])
-	destination = netip.AddrPortFrom(M.AddrFromIP(ip), port)
-	return
-}

common/redir/redir_linux.go

@@ -1,40 +1,37 @@
 package redir
 
 import (
-	"encoding/binary"
 	"net"
 	"net/netip"
-	"os"
 	"syscall"
 
-	"github.com/sagernet/sing/common"
-	"github.com/sagernet/sing/common/control"
 	M "github.com/sagernet/sing/common/metadata"
 )
 
 func GetOriginalDestination(conn net.Conn) (destination netip.AddrPort, err error) {
-	syscallConn, ok := common.Cast[syscall.Conn](conn)
-	if !ok {
-		return netip.AddrPort{}, os.ErrInvalid
+	rawConn, err := conn.(syscall.Conn).SyscallConn()
+	if err != nil {
+		return
 	}
-	err = control.Conn(syscallConn, func(fd uintptr) error {
-		const SO_ORIGINAL_DST = 80
-		if conn.RemoteAddr().(*net.TCPAddr).IP.To4() != nil {
-			raw, err := syscall.GetsockoptIPv6Mreq(int(fd), syscall.IPPROTO_IP, SO_ORIGINAL_DST)
-			if err != nil {
-				return err
-			}
-			destination = netip.AddrPortFrom(M.AddrFromIP(raw.Multiaddr[4:8]), uint16(raw.Multiaddr[2])<<8+uint16(raw.Multiaddr[3]))
-		} else {
-			raw, err := syscall.GetsockoptIPv6MTUInfo(int(fd), syscall.IPPROTO_IPV6, SO_ORIGINAL_DST)
-			if err != nil {
-				return err
-			}
-			var port [2]byte
-			binary.BigEndian.PutUint16(port[:], raw.Addr.Port)
-			destination = netip.AddrPortFrom(M.AddrFromIP(raw.Addr.Addr[:]), binary.LittleEndian.Uint16(port[:]))
-		}
-		return nil
+	var rawFd uintptr
+	err = rawConn.Control(func(fd uintptr) {
+		rawFd = fd
 	})
-	return
+	if err != nil {
+		return
+	}
+	const SO_ORIGINAL_DST = 80
+	if conn.RemoteAddr().(*net.TCPAddr).IP.To4() != nil {
+		raw, err := syscall.GetsockoptIPv6Mreq(int(rawFd), syscall.IPPROTO_IP, SO_ORIGINAL_DST)
+		if err != nil {
+			return netip.AddrPort{}, err
+		}
+		return netip.AddrPortFrom(M.AddrFromIP(raw.Multiaddr[4:8]), uint16(raw.Multiaddr[2])<<8+uint16(raw.Multiaddr[3])), nil
+	} else {
+		raw, err := syscall.GetsockoptIPv6MTUInfo(int(rawFd), syscall.IPPROTO_IPV6, SO_ORIGINAL_DST)
+		if err != nil {
+			return netip.AddrPort{}, err
+		}
+		return netip.AddrPortFrom(M.AddrFromIP(raw.Addr.Addr[:]), raw.Addr.Port), nil
+	}
 }

common/redir/redir_other.go

@@ -1,4 +1,4 @@
-//go:build !linux && !darwin
+//go:build !linux
 
 package redir
 

common/redir/tproxy_linux.go

@@ -2,11 +2,14 @@ package redir
 
 import (
 	"encoding/binary"
+	"net"
 	"net/netip"
+	"os"
+	"strconv"
 	"syscall"
 
-	"github.com/sagernet/sing/common/control"
 	E "github.com/sagernet/sing/common/exceptions"
+	F "github.com/sagernet/sing/common/format"
 	M "github.com/sagernet/sing/common/metadata"
 
 	"golang.org/x/sys/unix"
@@ -29,18 +32,6 @@ func TProxy(fd uintptr, isIPv6 bool) error {
 	return err
 }
 
-func TProxyWriteBack() control.Func {
-	return func(network, address string, conn syscall.RawConn) error {
-		return control.Raw(conn, func(fd uintptr) error {
-			if M.ParseSocksaddr(address).Addr.Is6() {
-				return syscall.SetsockoptInt(int(fd), syscall.SOL_IPV6, unix.IPV6_TRANSPARENT, 1)
-			} else {
-				return syscall.SetsockoptInt(int(fd), syscall.SOL_IP, syscall.IP_TRANSPARENT, 1)
-			}
-		})
-	}
-}
-
 func GetOriginalDestinationFromOOB(oob []byte) (netip.AddrPort, error) {
 	controlMessages, err := unix.ParseSocketControlMessage(oob)
 	if err != nil {
@@ -55,3 +46,79 @@ func GetOriginalDestinationFromOOB(oob []byte) (netip.AddrPort, error) {
 	}
 	return netip.AddrPort{}, E.New("not found")
 }
+
+func DialUDP(lAddr *net.UDPAddr, rAddr *net.UDPAddr) (*net.UDPConn, error) {
+	rSockAddr, err := udpAddrToSockAddr(rAddr)
+	if err != nil {
+		return nil, err
+	}
+
+	lSockAddr, err := udpAddrToSockAddr(lAddr)
+	if err != nil {
+		return nil, err
+	}
+
+	fd, err := syscall.Socket(udpAddrFamily(lAddr, rAddr), syscall.SOCK_DGRAM, 0)
+	if err != nil {
+		return nil, err
+	}
+
+	if err = syscall.SetsockoptInt(fd, syscall.SOL_SOCKET, syscall.SO_REUSEADDR, 1); err != nil {
+		syscall.Close(fd)
+		return nil, err
+	}
+
+	if err = syscall.SetsockoptInt(fd, syscall.SOL_IP, syscall.IP_TRANSPARENT, 1); err != nil {
+		syscall.Close(fd)
+		return nil, err
+	}
+
+	if err = syscall.Bind(fd, lSockAddr); err != nil {
+		syscall.Close(fd)
+		return nil, err
+	}
+
+	if err = syscall.Connect(fd, rSockAddr); err != nil {
+		syscall.Close(fd)
+		return nil, err
+	}
+
+	fdFile := os.NewFile(uintptr(fd), F.ToString("net-udp-dial-", rAddr))
+	defer fdFile.Close()
+
+	c, err := net.FileConn(fdFile)
+	if err != nil {
+		syscall.Close(fd)
+		return nil, err
+	}
+
+	return c.(*net.UDPConn), nil
+}
+
+func udpAddrToSockAddr(addr *net.UDPAddr) (syscall.Sockaddr, error) {
+	switch {
+	case addr.IP.To4() != nil:
+		ip := [4]byte{}
+		copy(ip[:], addr.IP.To4())
+
+		return &syscall.SockaddrInet4{Addr: ip, Port: addr.Port}, nil
+
+	default:
+		ip := [16]byte{}
+		copy(ip[:], addr.IP.To16())
+
+		zoneID, err := strconv.ParseUint(addr.Zone, 10, 32)
+		if err != nil {
+			zoneID = 0
+		}
+
+		return &syscall.SockaddrInet6{Addr: ip, Port: addr.Port, ZoneId: uint32(zoneID)}, nil
+	}
+}
+
+func udpAddrFamily(lAddr, rAddr *net.UDPAddr) int {
+	if (lAddr == nil || lAddr.IP.To4() != nil) && (rAddr == nil || lAddr.IP.To4() != nil) {
+		return syscall.AF_INET
+	}
+	return syscall.AF_INET6
+}

common/redir/tproxy_other.go

@@ -3,20 +3,19 @@
 package redir
 
 import (
+	"net"
 	"net/netip"
 	"os"
-
-	"github.com/sagernet/sing/common/control"
 )
 
 func TProxy(fd uintptr, isIPv6 bool) error {
 	return os.ErrInvalid
 }
 
-func TProxyWriteBack() control.Func {
-	return nil
-}
-
 func GetOriginalDestinationFromOOB(oob []byte) (netip.AddrPort, error) {
 	return netip.AddrPort{}, os.ErrInvalid
 }
+
+func DialUDP(lAddr *net.UDPAddr, rAddr *net.UDPAddr) (*net.UDPConn, error) {
+	return nil, os.ErrInvalid
+}

common/settings/command.go

@@ -0,0 +1,21 @@
+package settings
+
+import (
+	"os"
+	"os/exec"
+)
+
+func runCommand(name string, args ...string) error {
+	command := exec.Command(name, args...)
+	command.Env = os.Environ()
+	command.Stdin = os.Stdin
+	command.Stdout = os.Stderr
+	command.Stderr = os.Stderr
+	return command.Run()
+}
+
+func readCommand(name string, args ...string) ([]byte, error) {
+	command := exec.Command(name, args...)
+	command.Env = os.Environ()
+	return command.CombinedOutput()
+}

common/settings/proxy_android.go

@@ -7,7 +7,6 @@ import (
 	"github.com/sagernet/sing-box/adapter"
 	C "github.com/sagernet/sing-box/constant"
 	F "github.com/sagernet/sing/common/format"
-	"github.com/sagernet/sing/common/shell"
 )
 
 var (
@@ -26,9 +25,9 @@ func init() {
 
 func runAndroidShell(name string, args ...string) error {
 	if !useRish {
-		return shell.Exec(name, args...).Attach().Run()
+		return runCommand(name, args...)
 	} else {
-		return shell.Exec("sh", rishPath, "-c", F.ToString(name, " ", strings.Join(args, " "))).Attach().Run()
+		return runCommand("sh", rishPath, "-c", F.ToString(name, " ", strings.Join(args, " ")))
 	}
 }
 

common/settings/proxy_darwin.go

@@ -1,14 +1,12 @@
 package settings
 
 import (
-	"net/netip"
 	"strings"
 
 	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-tun"
 	E "github.com/sagernet/sing/common/exceptions"
 	F "github.com/sagernet/sing/common/format"
-	"github.com/sagernet/sing/common/shell"
 	"github.com/sagernet/sing/common/x/list"
 )
 
@@ -20,8 +18,8 @@ type systemProxy struct {
 	isMixed       bool
 }
 
-func (p *systemProxy) update(event int) error {
-	newInterfaceName := p.monitor.DefaultInterfaceName(netip.IPv4Unspecified())
+func (p *systemProxy) update() error {
+	newInterfaceName := p.monitor.DefaultInterfaceName()
 	if p.interfaceName == newInterfaceName {
 		return nil
 	}
@@ -34,13 +32,13 @@ func (p *systemProxy) update(event int) error {
 		return err
 	}
 	if p.isMixed {
-		err = shell.Exec("networksetup", "-setsocksfirewallproxy", interfaceDisplayName, "127.0.0.1", F.ToString(p.port)).Attach().Run()
+		err = runCommand("networksetup", "-setsocksfirewallproxy", interfaceDisplayName, "127.0.0.1", F.ToString(p.port))
 	}
 	if err == nil {
-		err = shell.Exec("networksetup", "-setwebproxy", interfaceDisplayName, "127.0.0.1", F.ToString(p.port)).Attach().Run()
+		err = runCommand("networksetup", "-setwebproxy", interfaceDisplayName, "127.0.0.1", F.ToString(p.port))
 	}
 	if err == nil {
-		err = shell.Exec("networksetup", "-setsecurewebproxy", interfaceDisplayName, "127.0.0.1", F.ToString(p.port)).Attach().Run()
+		err = runCommand("networksetup", "-setsecurewebproxy", interfaceDisplayName, "127.0.0.1", F.ToString(p.port))
 	}
 	return err
 }
@@ -51,19 +49,19 @@ func (p *systemProxy) unset() error {
 		return err
 	}
 	if p.isMixed {
-		err = shell.Exec("networksetup", "-setsocksfirewallproxystate", interfaceDisplayName, "off").Attach().Run()
+		err = runCommand("networksetup", "-setsocksfirewallproxystate", interfaceDisplayName, "off")
 	}
 	if err == nil {
-		err = shell.Exec("networksetup", "-setwebproxystate", interfaceDisplayName, "off").Attach().Run()
+		err = runCommand("networksetup", "-setwebproxystate", interfaceDisplayName, "off")
 	}
 	if err == nil {
-		err = shell.Exec("networksetup", "-setsecurewebproxystate", interfaceDisplayName, "off").Attach().Run()
+		err = runCommand("networksetup", "-setsecurewebproxystate", interfaceDisplayName, "off")
 	}
 	return err
 }
 
 func getInterfaceDisplayName(name string) (string, error) {
-	content, err := shell.Exec("networksetup", "-listallhardwareports").ReadOutput()
+	content, err := readCommand("networksetup", "-listallhardwareports")
 	if err != nil {
 		return "", err
 	}
@@ -88,7 +86,7 @@ func SetSystemProxy(router adapter.Router, port uint16, isMixed bool) (func() er
 		port:    port,
 		isMixed: isMixed,
 	}
-	err := proxy.update(tun.EventInterfaceUpdate)
+	err := proxy.update()
 	if err != nil {
 		return nil, err
 	}

common/settings/proxy_linux.go

@@ -11,7 +11,6 @@ import (
 	"github.com/sagernet/sing/common"
 	E "github.com/sagernet/sing/common/exceptions"
 	F "github.com/sagernet/sing/common/format"
-	"github.com/sagernet/sing/common/shell"
 )
 
 var (
@@ -28,9 +27,9 @@ func init() {
 
 func runAsUser(name string, args ...string) error {
 	if os.Getuid() != 0 {
-		return shell.Exec(name, args...).Attach().Run()
+		return runCommand(name, args...)
 	} else if sudoUser != "" {
-		return shell.Exec("su", "-", sudoUser, "-c", F.ToString(name, " ", strings.Join(args, " "))).Attach().Run()
+		return runCommand("su", "-", sudoUser, "-c", F.ToString(name, " ", strings.Join(args, " ")))
 	} else {
 		return E.New("set system proxy: unable to set as root")
 	}

common/settings/proxy_windows.go

@@ -7,7 +7,7 @@ import (
 )
 
 func SetSystemProxy(router adapter.Router, port uint16, isMixed bool) (func() error, error) {
-	err := wininet.SetSystemProxy(F.ToString("http://127.0.0.1:", port), "")
+	err := wininet.SetSystemProxy(F.ToString("http://127.0.0.1:", port), "<local>")
 	if err != nil {
 		return nil, err
 	}

common/settings/time_stub.go

@@ -1,12 +0,0 @@
-//go:build !(windows || linux || darwin)
-
-package settings
-
-import (
-	"os"
-	"time"
-)
-
-func SetSystemTime(nowTime time.Time) error {
-	return os.ErrInvalid
-}

common/settings/time_unix.go

@@ -1,14 +0,0 @@
-//go:build linux || darwin
-
-package settings
-
-import (
-	"time"
-
-	"golang.org/x/sys/unix"
-)
-
-func SetSystemTime(nowTime time.Time) error {
-	timeVal := unix.NsecToTimeval(nowTime.UnixNano())
-	return unix.Settimeofday(&timeVal)
-}

common/settings/time_windows.go

@@ -1,32 +0,0 @@
-package settings
-
-import (
-	"time"
-	"unsafe"
-
-	"golang.org/x/sys/windows"
-)
-
-func SetSystemTime(nowTime time.Time) error {
-	var systemTime windows.Systemtime
-	systemTime.Year = uint16(nowTime.Year())
-	systemTime.Month = uint16(nowTime.Month())
-	systemTime.Day = uint16(nowTime.Day())
-	systemTime.Hour = uint16(nowTime.Hour())
-	systemTime.Minute = uint16(nowTime.Minute())
-	systemTime.Second = uint16(nowTime.Second())
-	systemTime.Milliseconds = uint16(nowTime.UnixMilli() - nowTime.Unix()*1000)
-
-	dllKernel32 := windows.NewLazySystemDLL("kernel32.dll")
-	proc := dllKernel32.NewProc("SetSystemTime")
-
-	_, _, err := proc.Call(
-		uintptr(unsafe.Pointer(&systemTime)),
-	)
-
-	if err != nil && err.Error() != "The operation completed successfully." {
-		return err
-	}
-
-	return nil
-}

common/sniff/dns.go

@@ -11,10 +11,9 @@ import (
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/buf"
-	M "github.com/sagernet/sing/common/metadata"
 	"github.com/sagernet/sing/common/task"
 
-	mDNS "github.com/miekg/dns"
+	"golang.org/x/net/dns/dnsmessage"
 )
 
 func StreamDomainNameQuery(readCtx context.Context, reader io.Reader) (*adapter.InboundContext, error) {
@@ -23,7 +22,7 @@ func StreamDomainNameQuery(readCtx context.Context, reader io.Reader) (*adapter.
 	if err != nil {
 		return nil, err
 	}
-	if length == 0 {
+	if length > 512 {
 		return nil, os.ErrInvalid
 	}
 	_buffer := buf.StackNewSize(int(length))
@@ -45,13 +44,18 @@ func StreamDomainNameQuery(readCtx context.Context, reader io.Reader) (*adapter.
 }
 
 func DomainNameQuery(ctx context.Context, packet []byte) (*adapter.InboundContext, error) {
-	var msg mDNS.Msg
-	err := msg.Unpack(packet)
+	var parser dnsmessage.Parser
+	_, err := parser.Start(packet)
 	if err != nil {
 		return nil, err
 	}
-	if len(msg.Question) == 0 || msg.Question[0].Qclass != mDNS.ClassINET || !M.IsDomainName(msg.Question[0].Name) {
+	question, err := parser.Question()
+	if err != nil {
 		return nil, os.ErrInvalid
 	}
-	return &adapter.InboundContext{Protocol: C.ProtocolDNS}, nil
+	domain := question.Name.String()
+	if question.Class == dnsmessage.ClassINET && IsDomainName(domain) {
+		return &adapter.InboundContext{Protocol: C.ProtocolDNS /*, Domain: domain*/}, nil
+	}
+	return nil, os.ErrInvalid
 }

common/sniff/domain.go

@@ -0,0 +1,6 @@
+package sniff
+
+import _ "unsafe" // for linkname
+
+//go:linkname IsDomainName net.isDomainName
+func IsDomainName(domain string) bool

common/sniff/internal/qtls/qtls.go

@@ -13,13 +13,13 @@ import (
 const (
 	VersionDraft29 = 0xff00001d
 	Version1       = 0x1
-	Version2       = 0x6b3343cf
+	Version2       = 0x709a50c4
 )
 
 var (
 	SaltOld = []byte{0xaf, 0xbf, 0xec, 0x28, 0x99, 0x93, 0xd2, 0x4c, 0x9e, 0x97, 0x86, 0xf1, 0x9c, 0x61, 0x11, 0xe0, 0x43, 0x90, 0xa8, 0x99}
 	SaltV1  = []byte{0x38, 0x76, 0x2c, 0xf7, 0xf5, 0x59, 0x34, 0xb3, 0x4d, 0x17, 0x9a, 0xe6, 0xa4, 0xc8, 0x0c, 0xad, 0xcc, 0xbb, 0x7f, 0x0a}
-	SaltV2  = []byte{0x0d, 0xed, 0xe3, 0xde, 0xf7, 0x00, 0xa6, 0xdb, 0x81, 0x93, 0x81, 0xbe, 0x6e, 0x26, 0x9d, 0xcb, 0xf9, 0xbd, 0x2e, 0xd9}
+	SaltV2  = []byte{0xa7, 0x07, 0xc2, 0x03, 0xa5, 0x9b, 0x47, 0x18, 0x4a, 0x1d, 0x62, 0xca, 0x57, 0x04, 0x06, 0xea, 0x7a, 0xe3, 0xe5, 0xd3}
 )
 
 const (

common/sniff/quic.go

@@ -24,7 +24,8 @@ func QUICClientHello(ctx context.Context, packet []byte) (*adapter.InboundContex
 	if err != nil {
 		return nil, err
 	}
-	if typeByte&0x40 == 0 {
+
+	if typeByte&0x80 == 0 || typeByte&0x40 == 0 {
 		return nil, E.New("bad type byte")
 	}
 	var versionNumber uint32
@@ -144,6 +145,9 @@ func QUICClientHello(ctx context.Context, packet []byte) (*adapter.InboundContex
 	default:
 		return nil, E.New("bad packet number length")
 	}
+	if packetNumber != 0 {
+		return nil, E.New("bad packet number: ", packetNumber)
+	}
 	extHdrLen := hdrLen + int(packetNumberLength)
 	copy(newPacket[extHdrLen:hdrLen+4], packet[extHdrLen:])
 	data := newPacket[extHdrLen : int(packetLen)+hdrLen]
@@ -168,76 +172,37 @@ func QUICClientHello(ctx context.Context, packet []byte) (*adapter.InboundContex
 	if err != nil {
 		return nil, err
 	}
-	var frameType byte
-	var frameLen uint64
-	var fragments []struct {
-		offset  uint64
-		length  uint64
-		payload []byte
-	}
 	decryptedReader := bytes.NewReader(decrypted)
-	for {
+	frameType, err := decryptedReader.ReadByte()
+	if err != nil {
+		return nil, err
+	}
+	for frameType == 0x0 {
+		// skip padding
 		frameType, err = decryptedReader.ReadByte()
-		if err == io.EOF {
-			break
-		}
-		switch frameType {
-		case 0x0:
-			continue
-		case 0x1:
-			continue
-		case 0x6:
-			var offset uint64
-			offset, err = qtls.ReadUvarint(decryptedReader)
-			if err != nil {
-				return &adapter.InboundContext{Protocol: C.ProtocolQUIC}, err
-			}
-			var length uint64
-			length, err = qtls.ReadUvarint(decryptedReader)
-			if err != nil {
-				return &adapter.InboundContext{Protocol: C.ProtocolQUIC}, err
-			}
-			index := len(decrypted) - decryptedReader.Len()
-			fragments = append(fragments, struct {
-				offset  uint64
-				length  uint64
-				payload []byte
-			}{offset, length, decrypted[index : index+int(length)]})
-			frameLen += length
-			_, err = decryptedReader.Seek(int64(length), io.SeekCurrent)
-			if err != nil {
-				return nil, err
-			}
-		default:
-			// ignore unknown frame type
+		if err != nil {
+			return nil, err
 		}
 	}
+	if frameType != 0x6 {
+		// not crypto frame
+		return &adapter.InboundContext{Protocol: C.ProtocolQUIC}, nil
+	}
+	_, err = qtls.ReadUvarint(decryptedReader)
+	if err != nil {
+		return nil, err
+	}
+	_, err = qtls.ReadUvarint(decryptedReader)
+	if err != nil {
+		return nil, err
+	}
 	tlsHdr := make([]byte, 5)
 	tlsHdr[0] = 0x16
 	binary.BigEndian.PutUint16(tlsHdr[1:], uint16(0x0303))
-	binary.BigEndian.PutUint16(tlsHdr[3:], uint16(frameLen))
-	var index uint64
-	var length int
-	var readers []io.Reader
-	readers = append(readers, bytes.NewReader(tlsHdr))
-find:
-	for {
-		for _, fragment := range fragments {
-			if fragment.offset == index {
-				readers = append(readers, bytes.NewReader(fragment.payload))
-				index = fragment.offset + fragment.length
-				length++
-				continue find
-			}
-		}
-		if length == len(fragments) {
-			break
-		}
-		return &adapter.InboundContext{Protocol: C.ProtocolQUIC}, E.New("bad fragments")
-	}
-	metadata, err := TLSClientHello(ctx, io.MultiReader(readers...))
+	binary.BigEndian.PutUint16(tlsHdr[3:], uint16(decryptedReader.Len()))
+	metadata, err := TLSClientHello(ctx, io.MultiReader(bytes.NewReader(tlsHdr), decryptedReader))
 	if err != nil {
-		return &adapter.InboundContext{Protocol: C.ProtocolQUIC}, err
+		return nil, err
 	}
 	metadata.Protocol = C.ProtocolQUIC
 	return metadata, nil