Bump version

* Fix sniffer errors override each others

* Do not return ErrNeedMoreData if header is not expected

.fpm_openwrt

@@ -0,0 +1,30 @@
+-s dir
+--name sing-box
+--category net
+--license GPL-3.0-or-later
+--description "The universal proxy platform."
+--url "https://sing-box.sagernet.org/"
+--maintainer "nekohasekai <contact-git@sekai.icu>"
+--no-deb-generate-changes
+
+--config-files /etc/config/sing-box
+--config-files /etc/sing-box/config.json
+
+--depends ca-bundle
+--depends kmod-inet-diag
+--depends kmod-tun
+--depends firewall4
+
+--before-remove release/config/openwrt.prerm
+
+release/config/config.json=/etc/sing-box/config.json
+
+release/config/openwrt.conf=/etc/config/sing-box
+release/config/openwrt.init=/etc/init.d/sing-box
+release/config/openwrt.keep=/lib/upgrade/keep.d/sing-box
+
+release/completions/sing-box.bash=/usr/share/bash-completion/completions/sing-box.bash
+release/completions/sing-box.fish=/usr/share/fish/vendor_completions.d/sing-box.fish
+release/completions/sing-box.zsh=/usr/share/zsh/site-functions/_sing-box
+
+LICENSE=/usr/share/licenses/sing-box/LICENSE

.fpm_systemd

@@ -0,0 +1,21 @@
+-s dir
+--name sing-box
+--category net
+--license GPL-3.0-or-later
+--description "The universal proxy platform."
+--url "https://sing-box.sagernet.org/"
+--maintainer "nekohasekai <contact-git@sekai.icu>"
+--deb-field "Bug: https://github.com/SagerNet/sing-box/issues"
+--no-deb-generate-changes
+--config-files /etc/sing-box/config.json
+
+release/config/config.json=/etc/sing-box/config.json
+
+release/config/sing-box.service=/usr/lib/systemd/system/sing-box.service
+release/config/sing-box@.service=/usr/lib/systemd/system/sing-box@.service
+
+release/completions/sing-box.bash=/usr/share/bash-completion/completions/sing-box.bash
+release/completions/sing-box.fish=/usr/share/fish/vendor_completions.d/sing-box.fish
+release/completions/sing-box.zsh=/usr/share/zsh/site-functions/_sing-box
+
+LICENSE=/usr/share/licenses/sing-box/LICENSE

.github/deb2ipk.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+# mod from https://gist.github.com/pldubouilh/c5703052986bfdd404005951dee54683
+
+set -e -o pipefail
+
+PROJECT=$(dirname "$0")/../..
+TMP_PATH=`mktemp -d`
+cp $2 $TMP_PATH
+pushd $TMP_PATH
+
+DEB_NAME=`ls *.deb`
+ar x $DEB_NAME
+
+mkdir control
+pushd control
+tar xf ../control.tar.gz
+rm md5sums
+sed "s/Architecture:\\ \w*/Architecture:\\ $1/g" ./control -i
+cat control
+tar czf ../control.tar.gz ./*
+popd
+
+DEB_NAME=${DEB_NAME%.deb}
+tar czf $DEB_NAME.ipk control.tar.gz data.tar.gz debian-binary
+popd
+
+cp $TMP_PATH/$DEB_NAME.ipk $3
+rm -r $TMP_PATH

.github/workflows/build.yml

@@ -46,16 +46,16 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: ^1.23
+          go-version: ^1.24
       - name: Check input version
         if: github.event_name == 'workflow_dispatch'
         run: |-
-          echo "version=${{ inputs.version }}" 
+          echo "version=${{ inputs.version }}"
           echo "version=${{ inputs.version }}" >> "$GITHUB_ENV"
       - name: Calculate version
         if: github.event_name != 'workflow_dispatch'
         run: |-
-          go run -v ./cmd/internal/read_tag --nightly
+          go run -v ./cmd/internal/read_tag --ci --nightly
       - name: Set outputs
         id: outputs
         run: |-
@@ -69,141 +69,208 @@ jobs:
     strategy:
       matrix:
         include:
-          - name: linux_386
-            goos: linux
-            goarch: 386
-          - name: linux_amd64
-            goos: linux
-            goarch: amd64
-          - name: linux_arm64
-            goos: linux
-            goarch: arm64
-          - name: linux_arm
-            goos: linux
-            goarch: arm
-            goarm: 6
-          - name: linux_arm_v7
-            goos: linux
-            goarch: arm
-            goarm: 7
-          - name: linux_s390x
-            goos: linux
-            goarch: s390x
-          - name: linux_riscv64
-            goos: linux
-            goarch: riscv64
-          - name: linux_mips64le
-            goos: linux
-            goarch: mips64le
-          - name: windows_amd64
-            goos: windows
-            goarch: amd64
-            require_legacy_go: true
-          - name: windows_386
-            goos: windows
-            goarch: 386
-            require_legacy_go: true
-          - name: windows_arm64
-            goos: windows
-            goarch: arm64
-          - name: darwin_arm64
-            goos: darwin
-            goarch: arm64
-          - name: darwin_amd64
-            goos: darwin
-            goarch: amd64
-            require_legacy_go: true
-          - name: android_arm64
-            goos: android
-            goarch: arm64
-          - name: android_arm
-            goos: android
-            goarch: arm
-            goarm: 7
-          - name: android_amd64
-            goos: android
-            goarch: amd64
-          - name: android_386
-            goos: android
-            goarch: 386
+          - { os: linux, arch: amd64, debian: amd64, rpm: x86_64, pacman: x86_64, openwrt: "x86_64" }
+          - { os: linux, arch: "386", go386: sse2, debian: i386, rpm: i386, openwrt: "i386_pentium4" }
+          - { os: linux, arch: "386", go386: softfloat, openwrt: "i386_pentium-mmx" }
+          - { os: linux, arch: arm64, debian: arm64, rpm: aarch64, pacman: aarch64, openwrt: "aarch64_cortex-a53 aarch64_cortex-a72 aarch64_cortex-a76 aarch64_generic" }
+          - { os: linux, arch: arm, goarm: "5", openwrt: "arm_arm926ej-s arm_cortex-a7 arm_cortex-a9 arm_fa526 arm_xscale" }
+          - { os: linux, arch: arm, goarm: "6", debian: armel, rpm: armv6hl, openwrt: "arm_arm1176jzf-s_vfp" }
+          - { os: linux, arch: arm, goarm: "7", debian: armhf, rpm: armv7hl, pacman: armv7hl, openwrt: "arm_cortex-a5_vfpv4 arm_cortex-a7_neon-vfpv4 arm_cortex-a7_vfpv4 arm_cortex-a8_vfpv3 arm_cortex-a9_neon arm_cortex-a9_vfpv3-d16 arm_cortex-a15_neon-vfpv4" }
+          - { os: linux, arch: mips, gomips: softfloat, openwrt: "mips_24kc mips_4kec mips_mips32" }
+          - { os: linux, arch: mipsle, gomips: hardfloat, debian: mipsel, rpm: mipsel, openwrt: "mipsel_24kc_24kf" }
+          - { os: linux, arch: mipsle, gomips: softfloat, openwrt: "mipsel_24kc mipsel_74kc mipsel_mips32" }
+          - { os: linux, arch: mips64, gomips: softfloat, openwrt: "mips64_mips64r2 mips64_octeonplus" }
+          - { os: linux, arch: mips64le, gomips: hardfloat, debian: mips64el, rpm: mips64el }
+          - { os: linux, arch: mips64le, gomips: softfloat, openwrt: "mips64el_mips64r2" }
+          - { os: linux, arch: s390x, debian: s390x, rpm: s390x }
+          - { os: linux, arch: ppc64le, debian: ppc64el, rpm: ppc64le }
+          - { os: linux, arch: riscv64, debian: riscv64, rpm: riscv64, openwrt: "riscv64_generic" }
+          - { os: linux, arch: loong64, debian: loongarch64, rpm: loongarch64, openwrt: "loongarch64_generic" }
+
+          - { os: windows, arch: amd64 }
+          - { os: windows, arch: amd64, legacy_go: true }
+          - { os: windows, arch: "386" }
+          - { os: windows, arch: "386", legacy_go: true }
+          - { os: windows, arch: arm64 }
+
+          - { os: darwin, arch: amd64 }
+          - { os: darwin, arch: amd64, legacy_go: true }
+          - { os: darwin, arch: arm64 }
+
+          - { os: android, arch: arm64, ndk: "aarch64-linux-android21" }
+          - { os: android, arch: arm, ndk: "armv7a-linux-androideabi21" }
+          - { os: android, arch: amd64, ndk: "x86_64-linux-android21" }
+          - { os: android, arch: "386", ndk: "i686-linux-android21" }
     steps:
       - name: Checkout
         uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
         with:
           fetch-depth: 0
       - name: Setup Go
+        if: matrix.legacy_go
         uses: actions/setup-go@v5
         with:
-          go-version: ^1.23
-      - name: Cache legacy Go
-        if: matrix.require_legacy_go
-        id: cache-legacy-go
-        uses: actions/cache@v4
+          go-version: ~1.20
+      - name: Setup Go
+        if: ${{ ! matrix.legacy_go }}
+        uses: actions/setup-go@v5
         with:
-          path: |
-            ~/go/go1.20.14
-          key: go120
-      - name: Setup legacy Go
-        if: matrix.require_legacy_go && steps.cache-legacy-go.outputs.cache-hit != 'true'
-        run: |-
-          wget https://dl.google.com/go/go1.20.14.linux-amd64.tar.gz
-          tar -xzf go1.20.14.linux-amd64.tar.gz
-          mv go $HOME/go/go1.20.14
+          go-version: ^1.24
       - name: Setup Android NDK
-        if: matrix.goos == 'android'
+        if: matrix.os == 'android'
         uses: nttld/setup-ndk@v1
         with:
-          ndk-version: r28-beta2
+          ndk-version: r28
           local-cache: true
-      - name: Setup Goreleaser
-        uses: goreleaser/goreleaser-action@v6
-        with:
-          distribution: goreleaser-pro
-          version: 2.5.1
-          install-only: true
-      - name: Extract signing key
-        run: |-
-          mkdir -p $HOME/.gnupg
-          cat > $HOME/.gnupg/sagernet.key <<EOF
-          ${{ secrets.GPG_KEY }}
-          EOF
-          echo "HOME=$HOME" >> "$GITHUB_ENV"
       - name: Set tag
         run: |-
           git ls-remote --exit-code --tags origin v${{ needs.calculate_version.outputs.version }} || echo "PUBLISHED=false" >> "$GITHUB_ENV"
           git tag v${{ needs.calculate_version.outputs.version }} -f
+      - name: Set build tags
+        run: |
+          set -xeuo pipefail
+          TAGS='with_gvisor,with_quic,with_dhcp,with_wireguard,with_utls,with_reality_server,with_acme,with_clash_api'
+          if [ ! '${{ matrix.legacy_go }}' = 'true' ]; then
+            TAGS="${TAGS},with_ech"
+          fi
+          echo "BUILD_TAGS=${TAGS}" >> "${GITHUB_ENV}"
       - name: Build
-        if: matrix.goos != 'android'
-        run: |-
-          goreleaser release --clean --split
+        if: matrix.os != 'android'
+        run: |
+          set -xeuo pipefail
+          mkdir -p dist
+          go build -v -trimpath -o dist/sing-box -tags "${BUILD_TAGS}" \
+          -ldflags '-s -buildid= -X github.com/sagernet/sing-box/constant.Version=${{ needs.calculate_version.outputs.version }}' \
+          ./cmd/sing-box
         env:
-          GOOS: ${{ matrix.goos }}
-          GOARCH: ${{ matrix.goarch }}
-          GOPATH: ${{ env.HOME }}/go
+          CGO_ENABLED: "0"
+          GOOS: ${{ matrix.os }}
+          GOARCH: ${{ matrix.arch }}
+          GO386: ${{ matrix.go386 }}
           GOARM: ${{ matrix.goarm }}
+          GOMIPS: ${{ matrix.gomips }}
+          GOMIPS64: ${{ matrix.gomips }}
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          GORELEASER_KEY: ${{ secrets.GORELEASER_KEY }}
-          NFPM_KEY_PATH: ${{ env.HOME }}/.gnupg/sagernet.key
-          NFPM_PASSPHRASE: ${{ secrets.GPG_PASSPHRASE }}
       - name: Build Android
-        if: matrix.goos == 'android'
-        run: |-
+        if: matrix.os == 'android'
+        run: |
+          set -xeuo pipefail
           go install -v ./cmd/internal/build
-          GOOS=$BUILD_GOOS GOARCH=$BUILD_GOARCH build goreleaser release --clean --split
+          export CC='${{ matrix.ndk }}-clang'
+          export CXX="${CC}++"
+          mkdir -p dist
+          GOOS=$BUILD_GOOS GOARCH=$BUILD_GOARCH build go build -v -trimpath -o dist/sing-box -tags "${BUILD_TAGS}" \
+          -ldflags '-s -buildid= -X github.com/sagernet/sing-box/constant.Version=${{ needs.calculate_version.outputs.version }}' \
+          ./cmd/sing-box
         env:
-          BUILD_GOOS: ${{ matrix.goos }}
-          BUILD_GOARCH: ${{ matrix.goarch }}
-          GOARM: ${{ matrix.goarm }}
+          CGO_ENABLED: "1"
+          BUILD_GOOS: ${{ matrix.os }}
+          BUILD_GOARCH: ${{ matrix.arch }}
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          GORELEASER_KEY: ${{ secrets.GORELEASER_KEY }}
-          NFPM_KEY_PATH: ${{ env.HOME }}/.gnupg/sagernet.key
-          NFPM_PASSPHRASE: ${{ secrets.GPG_PASSPHRASE }}
+      - name: Set name
+        run: |-
+          DIR_NAME="sing-box-${{ needs.calculate_version.outputs.version }}-${{ matrix.os }}-${{ matrix.arch }}"
+          if [[ -n "${{ matrix.goarm }}" ]]; then
+            DIR_NAME="${DIR_NAME}v${{ matrix.goarm }}"
+          elif [[ -n "${{ matrix.go386 }}" && "${{ matrix.go386 }}" != 'sse2' ]]; then
+            DIR_NAME="${DIR_NAME}-${{ matrix.go386 }}"
+          elif [[ -n "${{ matrix.gomips }}" && "${{ matrix.gomips }}" != 'hardfloat' ]]; then
+            DIR_NAME="${DIR_NAME}-${{ matrix.gomips }}"
+          elif [[ "${{ matrix.legacy_go }}" == 'true' ]]; then
+            DIR_NAME="${DIR_NAME}-legacy"
+          fi
+          echo "DIR_NAME=${DIR_NAME}" >> "${GITHUB_ENV}"
+          PKG_VERSION="${{ needs.calculate_version.outputs.version }}"
+          PKG_VERSION="${PKG_VERSION//-/\~}"
+          echo "PKG_VERSION=${PKG_VERSION}" >> "${GITHUB_ENV}"
+      - name: Package DEB
+        if: matrix.debian != ''
+        run: |
+          set -xeuo pipefail
+          sudo gem install fpm
+          sudo apt-get update
+          sudo apt-get install -y debsigs
+          cp .fpm_systemd .fpm
+          fpm -t deb \
+            -v "$PKG_VERSION" \
+            -p "dist/sing-box_${{ needs.calculate_version.outputs.version }}_${{ matrix.os }}_${{ matrix.debian }}.deb" \
+            --architecture ${{ matrix.debian }} \
+            dist/sing-box=/usr/bin/sing-box
+          curl -Lo '/tmp/debsigs.diff' 'https://gitlab.com/debsigs/debsigs/-/commit/160138f5de1ec110376d3c807b60a37388bc7c90.diff'
+          sudo patch /usr/bin/debsigs < '/tmp/debsigs.diff'
+          rm -rf $HOME/.gnupg
+          gpg --pinentry-mode loopback --passphrase "${{ secrets.GPG_PASSPHRASE }}" --import <<EOF
+          ${{ secrets.GPG_KEY }}
+          EOF
+          debsigs --sign=origin -k ${{ secrets.GPG_KEY_ID }} --gpgopts '--pinentry-mode loopback --passphrase "${{ secrets.GPG_PASSPHRASE }}"' dist/*.deb
+      - name: Package RPM
+        if: matrix.rpm != ''
+        run: |-
+          set -xeuo pipefail
+          sudo gem install fpm
+          cp .fpm_systemd .fpm
+          fpm -t rpm \
+            -v "$PKG_VERSION" \
+            -p "dist/sing-box_${{ needs.calculate_version.outputs.version }}_${{ matrix.os }}_${{ matrix.rpm }}.rpm" \
+            --architecture ${{ matrix.rpm }} \
+            dist/sing-box=/usr/bin/sing-box
+          cat > $HOME/.rpmmacros <<EOF
+          %_gpg_name ${{ secrets.GPG_KEY_ID }}
+          %_gpg_sign_cmd_extra_args --pinentry-mode loopback --passphrase ${{ secrets.GPG_PASSPHRASE }}
+          EOF
+          gpg --pinentry-mode loopback --passphrase "${{ secrets.GPG_PASSPHRASE }}" --import <<EOF
+          ${{ secrets.GPG_KEY }}
+          EOF
+          rpmsign --addsign dist/*.rpm
+      - name: Package Pacman
+        if: matrix.pacman != ''
+        run: |-
+          set -xeuo pipefail
+          sudo gem install fpm
+          sudo apt-get update
+          sudo apt-get install -y libarchive-tools
+          cp .fpm_systemd .fpm
+          fpm -t pacman \
+            -v "$PKG_VERSION" \
+            -p "dist/sing-box_${{ needs.calculate_version.outputs.version }}_${{ matrix.os }}_${{ matrix.pacman }}.pkg.tar.zst" \
+            --architecture ${{ matrix.pacman }} \
+            dist/sing-box=/usr/bin/sing-box
+      - name: Package OpenWrt
+        if: matrix.openwrt != ''
+        run: |-
+          set -xeuo pipefail
+          sudo gem install fpm
+          cp .fpm_openwrt .fpm
+          fpm -t deb \
+            -v "$PKG_VERSION" \
+            -p "dist/openwrt.deb" \
+            --architecture all \
+            dist/sing-box=/usr/bin/sing-box
+          for architecture in ${{ matrix.openwrt }}; do
+            .github/deb2ipk.sh "$architecture" "dist/openwrt.deb" "dist/sing-box_${{ needs.calculate_version.outputs.version }}_openwrt_${architecture}.ipk"
+          done
+          rm "dist/openwrt.deb"
+      - name: Archive
+        run: |
+          set -xeuo pipefail
+          cd dist
+          mkdir -p "${DIR_NAME}"
+          cp ../LICENSE "${DIR_NAME}"
+          if [ '${{ matrix.os }}' = 'windows' ]; then
+            cp sing-box "${DIR_NAME}/sing-box.exe"
+            zip -r "${DIR_NAME}.zip" "${DIR_NAME}"
+          else
+            cp sing-box "${DIR_NAME}"
+            tar -czvf "${DIR_NAME}.tar.gz" "${DIR_NAME}"
+          fi
+          rm -r "${DIR_NAME}"
+      - name: Cleanup
+        run: rm dist/sing-box
       - name: Upload artifact
-        if: github.event_name == 'workflow_dispatch'
         uses: actions/upload-artifact@v4
         with:
-          name: binary-${{ matrix.name }}
-          path: 'dist'
+          name: binary-${{ matrix.os }}_${{ matrix.arch }}${{ matrix.goarm && format('v{0}', matrix.goarm) }}${{ matrix.go386 && format('_{0}', matrix.go386) }}${{ matrix.gomips && format('_{0}', matrix.gomips) }}${{ matrix.legacy_go && '-legacy' || '' }}
+          path: "dist"
   build_android:
     name: Build Android
     if: github.event_name != 'workflow_dispatch' || inputs.build == 'All' || inputs.build == 'Android'
@@ -219,12 +286,12 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: ^1.23
+          go-version: ^1.24
       - name: Setup Android NDK
         id: setup-ndk
         uses: nttld/setup-ndk@v1
         with:
-          ndk-version: r28-beta3
+          ndk-version: r28
       - name: Setup OpenJDK
         run: |-
           sudo apt update && sudo apt install -y openjdk-17-jdk-headless
@@ -256,9 +323,16 @@ jobs:
         with:
           path: ~/.gradle
           key: gradle-${{ hashFiles('**/*.gradle') }}
-      - name: Build
+      - name: Update version
+        if: github.event_name == 'workflow_dispatch'
         run: |-
           go run -v ./cmd/internal/update_android_version --ci
+      - name: Update nightly version
+        if: github.event_name != 'workflow_dispatch'
+        run: |-
+          go run -v ./cmd/internal/update_android_version --ci --nightly
+      - name: Build
+        run: |-
           mkdir clients/android/app/libs
           cp libbox.aar clients/android/app/libs
           cd clients/android
@@ -268,13 +342,11 @@ jobs:
           ANDROID_NDK_HOME: ${{ steps.setup-ndk.outputs.ndk-path }}
           LOCAL_PROPERTIES: ${{ secrets.LOCAL_PROPERTIES }}
       - name: Prepare upload
-        if: github.event_name == 'workflow_dispatch'
         run: |-
-          mkdir -p dist/release
-          cp clients/android/app/build/outputs/apk/play/release/*.apk dist/release
-          cp clients/android/app/build/outputs/apk/other/release/*-universal.apk dist/release
+          mkdir -p dist
+          cp clients/android/app/build/outputs/apk/play/release/*.apk dist
+          cp clients/android/app/build/outputs/apk/other/release/*-universal.apk dist
       - name: Upload artifact
-        if: github.event_name == 'workflow_dispatch'
         uses: actions/upload-artifact@v4
         with:
           name: binary-android-apks
@@ -294,12 +366,12 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: ^1.23
+          go-version: ^1.24
       - name: Setup Android NDK
         id: setup-ndk
         uses: nttld/setup-ndk@v1
         with:
-          ndk-version: r28-beta3
+          ndk-version: r28
       - name: Setup OpenJDK
         run: |-
           sudo apt update && sudo apt install -y openjdk-17-jdk-headless
@@ -392,7 +464,7 @@ jobs:
         if: matrix.if
         uses: actions/setup-go@v5
         with:
-          go-version: ^1.23
+          go-version: ^1.24
       - name: Setup Xcode stable
         if: matrix.if && github.ref == 'refs/heads/main-next'
         run: |-
@@ -432,19 +504,19 @@ jobs:
 
           PROFILES_ZIP_PATH=$RUNNER_TEMP/Profiles.zip
           echo -n "$PROVISIONING_PROFILES" | base64 --decode -o $PROFILES_ZIP_PATH
-          
+
           PROFILES_PATH="$HOME/Library/MobileDevice/Provisioning Profiles"
           mkdir -p "$PROFILES_PATH"
           unzip $PROFILES_ZIP_PATH -d "$PROFILES_PATH"
-          
+
           ASC_KEY_PATH=$RUNNER_TEMP/Key.p12
           echo -n "$ASC_KEY" | base64 --decode -o $ASC_KEY_PATH
-          
+
           xcrun notarytool store-credentials "notarytool-password" \
             --key $ASC_KEY_PATH \
             --key-id $ASC_KEY_ID \
             --issuer $ASC_KEY_ISSUER_ID
-          
+
           echo "ASC_KEY_PATH=$ASC_KEY_PATH" >> "$GITHUB_ENV"
           echo "ASC_KEY_ID=$ASC_KEY_ID" >> "$GITHUB_ENV"
           echo "ASC_KEY_ISSUER_ID=$ASC_KEY_ISSUER_ID" >> "$GITHUB_ENV"
@@ -520,10 +592,10 @@ jobs:
           cd "${{ matrix.archive }}"
           zip -r SFM.dSYMs.zip dSYMs
           popd
-          
-          mkdir -p dist/release
-          cp clients/apple/SFM.dmg "dist/release/SFM-${VERSION}-universal.dmg"
-          cp "clients/apple/${{ matrix.archive }}/SFM.dSYMs.zip" "dist/release/SFM-${VERSION}-universal.dSYMs.zip"
+
+          mkdir -p dist
+          cp clients/apple/SFM.dmg "dist/SFM-${VERSION}-universal.dmg"
+          cp "clients/apple/${{ matrix.archive }}/SFM.dSYMs.zip" "dist/SFM-${VERSION}-universal.dSYMs.zip"
       - name: Upload image
         if: matrix.if && matrix.name == 'macOS-standalone' && github.event_name == 'workflow_dispatch'
         uses: actions/upload-artifact@v4
@@ -544,12 +616,6 @@ jobs:
         uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
         with:
           fetch-depth: 0
-      - name: Setup Goreleaser
-        uses: goreleaser/goreleaser-action@v6
-        with:
-          distribution: goreleaser-pro
-          version: 2.5.1
-          install-only: true
       - name: Cache ghr
         uses: actions/cache@v4
         id: cache-ghr
@@ -574,26 +640,17 @@ jobs:
         with:
           path: dist
           merge-multiple: true
-      - name: Merge builds
-        if: github.event_name != 'workflow_dispatch' || inputs.build == 'All' || inputs.build == 'Binary'
-        run: |-
-          goreleaser continue --merge --skip publish
-          mkdir -p dist/release
-          mv dist/*/sing-box*{tar.gz,zip,deb,rpm,_amd64.pkg.tar.zst,_arm64.pkg.tar.zst} dist/release
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          GORELEASER_KEY: ${{ secrets.GORELEASER_KEY }}
       - name: Upload builds
         if: ${{ env.PUBLISHED == 'false' }}
         run: |-
           export PATH="$PATH:$HOME/go/bin"
-          ghr --replace --draft --prerelease -p 5 "v${VERSION}" dist/release
+          ghr --replace --draft --prerelease -p 5 "v${VERSION}" dist
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       - name: Replace builds
         if: ${{ env.PUBLISHED != 'false' }}
         run: |-
           export PATH="$PATH:$HOME/go/bin"
-          ghr --replace -p 5 "v${VERSION}" dist/release
+          ghr --replace -p 5 "v${VERSION}" dist
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/lint.yml

@@ -28,10 +28,11 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: ^1.23
+          go-version: ^1.24
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v6
         with:
           version: latest
           args: --timeout=30m
-          install-mode: binary
+          install-mode: binary
+          verify: false

.github/workflows/linux.yml

@@ -1,13 +1,22 @@
-name: Release to Linux repository
+name: Build Linux Packages
 
 on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: "Version name"
+        required: true
+        type: string
   release:
     types:
       - published
 
 jobs:
-  build:
+  calculate_version:
+    name: Calculate version
     runs-on: ubuntu-latest
+    outputs:
+      version: ${{ steps.outputs.outputs.version }}
     steps:
       - name: Checkout
         uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
@@ -16,23 +25,163 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: ^1.23
-      - name: Extract signing key
+          go-version: ^1.24
+      - name: Check input version
+        if: github.event_name == 'workflow_dispatch'
         run: |-
-          mkdir -p $HOME/.gnupg
-          cat > $HOME/.gnupg/sagernet.key <<EOF
+          echo "version=${{ inputs.version }}"
+          echo "version=${{ inputs.version }}" >> "$GITHUB_ENV"
+      - name: Calculate version
+        if: github.event_name != 'workflow_dispatch'
+        run: |-
+          go run -v ./cmd/internal/read_tag --ci --nightly
+      - name: Set outputs
+        id: outputs
+        run: |-
+          echo "version=$version" >> "$GITHUB_OUTPUT"
+  build:
+    name: Build binary
+    runs-on: ubuntu-latest
+    needs:
+      - calculate_version
+    strategy:
+      matrix:
+        include:
+          - { os: linux, arch: amd64, debian: amd64, rpm: x86_64, pacman: x86_64 }
+          - { os: linux, arch: "386", debian: i386, rpm: i386 }
+          - { os: linux, arch: arm, goarm: "6", debian: armel, rpm: armv6hl }
+          - { os: linux, arch: arm, goarm: "7", debian: armhf, rpm: armv7hl, pacman: armv7hl }
+          - { os: linux, arch: arm64, debian: arm64, rpm: aarch64, pacman: aarch64 }
+          - { os: linux, arch: mips64le, debian: mips64el, rpm: mips64el }
+          - { os: linux, arch: mipsle, debian: mipsel, rpm: mipsel }
+          - { os: linux, arch: s390x, debian: s390x, rpm: s390x }
+          - { os: linux, arch: ppc64le, debian: ppc64el, rpm: ppc64le }
+          - { os: linux, arch: riscv64, debian: riscv64, rpm: riscv64 }
+          - { os: linux, arch: loong64, debian: loongarch64, rpm: loongarch64 }
+    steps:
+      - name: Checkout
+        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
+        with:
+          fetch-depth: 0
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ^1.24
+      - name: Setup Android NDK
+        if: matrix.os == 'android'
+        uses: nttld/setup-ndk@v1
+        with:
+          ndk-version: r28
+          local-cache: true
+      - name: Set tag
+        run: |-
+          git ls-remote --exit-code --tags origin v${{ needs.calculate_version.outputs.version }} || echo "PUBLISHED=false" >> "$GITHUB_ENV"
+          git tag v${{ needs.calculate_version.outputs.version }} -f
+      - name: Set build tags
+        run: |
+          set -xeuo pipefail
+          TAGS='with_gvisor,with_quic,with_dhcp,with_wireguard,with_utls,with_reality_server,with_acme,with_clash_api'
+          if [ ! '${{ matrix.legacy_go }}' = 'true' ]; then
+            TAGS="${TAGS},with_ech"
+          fi
+          echo "BUILD_TAGS=${TAGS}" >> "${GITHUB_ENV}"
+      - name: Build
+        run: |
+          set -xeuo pipefail
+          mkdir -p dist
+          go build -v -trimpath -o dist/sing-box -tags "${BUILD_TAGS}" \
+          -ldflags '-s -buildid= -X github.com/sagernet/sing-box/constant.Version=${{ needs.calculate_version.outputs.version }}' \
+          ./cmd/sing-box
+        env:
+          CGO_ENABLED: "0"
+          GOOS: ${{ matrix.os }}
+          GOARCH: ${{ matrix.arch }}
+          GOARM: ${{ matrix.goarm }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Set mtime
+        run: |-
+          TZ=UTC touch -t '197001010000' dist/sing-box
+      - name: Set name
+        if: ${{ ! contains(needs.calculate_version.outputs.version, '-') }}
+        run: |-
+          echo "NAME=sing-box" >> "$GITHUB_ENV"
+      - name: Set beta name
+        if: contains(needs.calculate_version.outputs.version, '-')
+        run: |-
+          echo "NAME=sing-box-beta" >> "$GITHUB_ENV"
+      - name: Set version
+        run: |-
+          PKG_VERSION="${{ needs.calculate_version.outputs.version }}"
+          PKG_VERSION="${PKG_VERSION//-/\~}"
+          echo "PKG_VERSION=${PKG_VERSION}" >> "${GITHUB_ENV}"
+      - name: Package DEB
+        if: matrix.debian != ''
+        run: |
+          set -xeuo pipefail
+          sudo gem install fpm
+          sudo apt-get install -y debsigs
+          cp .fpm_systemd .fpm
+          fpm -t deb \
+            --name "${NAME}" \
+            -v "$PKG_VERSION" \
+            -p "dist/${NAME}_${{ needs.calculate_version.outputs.version }}_linux_${{ matrix.debian }}.deb" \
+            --architecture ${{ matrix.debian }} \
+            dist/sing-box=/usr/bin/sing-box
+          curl -Lo '/tmp/debsigs.diff' 'https://gitlab.com/debsigs/debsigs/-/commit/160138f5de1ec110376d3c807b60a37388bc7c90.diff'
+          sudo patch /usr/bin/debsigs < '/tmp/debsigs.diff'
+          rm -rf $HOME/.gnupg
+          gpg --pinentry-mode loopback --passphrase "${{ secrets.GPG_PASSPHRASE }}" --import <<EOF
           ${{ secrets.GPG_KEY }}
           EOF
-          echo "HOME=$HOME" >> "$GITHUB_ENV"
-      - name: Publish release
-        uses: goreleaser/goreleaser-action@v6
+          debsigs --sign=origin -k ${{ secrets.GPG_KEY_ID }} --gpgopts '--pinentry-mode loopback --passphrase "${{ secrets.GPG_PASSPHRASE }}"' dist/*.deb
+      - name: Package RPM
+        if: matrix.rpm != ''
+        run: |-
+          set -xeuo pipefail
+          sudo gem install fpm
+          cp .fpm_systemd .fpm
+          fpm -t rpm \
+            --name "${NAME}" \
+            -v "$PKG_VERSION" \
+            -p "dist/${NAME}_${{ needs.calculate_version.outputs.version }}_linux_${{ matrix.rpm }}.rpm" \
+            --architecture ${{ matrix.rpm }} \
+            dist/sing-box=/usr/bin/sing-box
+          cat > $HOME/.rpmmacros <<EOF
+          %_gpg_name ${{ secrets.GPG_KEY_ID }}
+          %_gpg_sign_cmd_extra_args --pinentry-mode loopback --passphrase ${{ secrets.GPG_PASSPHRASE }}
+          EOF
+          gpg --pinentry-mode loopback --passphrase "${{ secrets.GPG_PASSPHRASE }}" --import <<EOF
+          ${{ secrets.GPG_KEY }}
+          EOF
+          rpmsign --addsign dist/*.rpm
+      - name: Cleanup
+        run: rm dist/sing-box
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4
         with:
-          distribution: goreleaser-pro
-          version: latest
-          args: release -f .goreleaser.fury.yaml --clean
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          GORELEASER_KEY: ${{ secrets.GORELEASER_KEY }}
-          FURY_TOKEN: ${{ secrets.FURY_TOKEN }}
-          NFPM_KEY_PATH: ${{ env.HOME }}/.gnupg/sagernet.key
-          NFPM_PASSPHRASE: ${{ secrets.GPG_PASSPHRASE }}
+          name: binary-${{ matrix.os }}_${{ matrix.arch }}${{ matrix.goarm && format('v{0}', matrix.goarm) }}${{ matrix.legacy_go && '-legacy' || '' }}
+          path: "dist"
+  upload:
+    name: Upload builds
+    runs-on: ubuntu-latest
+    needs:
+      - calculate_version
+      - build
+    steps:
+      - name: Checkout
+        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
+        with:
+          fetch-depth: 0
+      - name: Set tag
+        run: |-
+          git ls-remote --exit-code --tags origin v${{ needs.calculate_version.outputs.version }} || echo "PUBLISHED=false" >> "$GITHUB_ENV"
+          git tag v${{ needs.calculate_version.outputs.version }} -f
+          echo "VERSION=${{ needs.calculate_version.outputs.version }}" >> "$GITHUB_ENV"
+      - name: Download builds
+        uses: actions/download-artifact@v4
+        with:
+          path: dist
+          merge-multiple: true
+      - name: Publish packages
+        run: |-
+          ls dist | xargs -I {} curl -F "package=@dist/{}" https://${{ secrets.FURY_TOKEN }}@push.fury.io/sagernet/

.goreleaser.fury.yaml

@@ -6,9 +6,7 @@ builds:
       - -v
       - -trimpath
     ldflags:
-      - -X github.com/sagernet/sing-box/constant.Version={{ .Version }}
-      - -s
-      - -buildid=
+      - -X github.com/sagernet/sing-box/constant.Version={{ .Version }} -s -w -buildid=
     tags:
       - with_gvisor
       - with_quic
@@ -50,7 +48,7 @@ nfpms:
     contents:
       - src: release/config/config.json
         dst: /etc/sing-box/config.json
-        type: config
+        type: "config|noreplace"
 
       - src: release/config/sing-box.service
         dst: /usr/lib/systemd/system/sing-box.service

.goreleaser.yaml

@@ -95,10 +95,12 @@ archives:
     builds:
       - main
       - android
-    format: tar.gz
+    formats:
+      - tar.gz
     format_overrides:
       - goos: windows
-        format: zip
+        formats:
+          - zip
     wrap_in_directory: true
     files:
       - LICENSE
@@ -128,7 +130,7 @@ nfpms:
     contents:
       - src: release/config/config.json
         dst: /etc/sing-box/config.json
-        type: config
+        type: "config|noreplace"
 
       - src: release/config/sing-box.service
         dst: /usr/lib/systemd/system/sing-box.service

Dockerfile

@@ -1,4 +1,4 @@
-FROM --platform=$BUILDPLATFORM golang:1.23-alpine AS builder
+FROM --platform=$BUILDPLATFORM golang:1.24-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

Makefile

@@ -10,7 +10,7 @@ GOHOSTARCH = $(shell go env GOHOSTARCH)
 VERSION=$(shell CGO_ENABLED=0 GOOS=$(GOHOSTOS) GOARCH=$(GOHOSTARCH) go run ./cmd/internal/read_tag)
 
 PARAMS = -v -trimpath -ldflags "-X 'github.com/sagernet/sing-box/constant.Version=$(VERSION)' -s -w -buildid="
-MAIN_PARAMS = $(PARAMS) -tags $(TAGS)
+MAIN_PARAMS = $(PARAMS) -tags "$(TAGS)"
 MAIN = ./cmd/sing-box
 PREFIX ?= $(shell go env GOPATH)
 
@@ -28,7 +28,7 @@ ci_build:
 	go build $(MAIN_PARAMS) $(MAIN)
 
 generate_completions:
-	go run -v --tags $(TAGS),generate,generate_completions $(MAIN)
+	go run -v --tags "$(TAGS),generate,generate_completions" $(MAIN)
 
 install:
 	go build -o $(PREFIX)/bin/$(NAME) $(MAIN_PARAMS) $(MAIN)
@@ -61,12 +61,6 @@ 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
 
-update_public_suffix:
-	go generate common/tlsfragment/public_suffix.go
-
-update_certificates:
-	go run ./cmd/internal/update_certificates
-
 release:
 	go run ./cmd/internal/build goreleaser release --clean --skip publish
 	mkdir dist/release
@@ -253,4 +247,4 @@ clean:
 update:
 	git fetch
 	git reset FETCH_HEAD --hard
-	git clean -fdx
+	git clean -fdx

adapter/certificate.go

@@ -1,21 +0,0 @@
-package adapter
-
-import (
-	"context"
-	"crypto/x509"
-
-	"github.com/sagernet/sing/service"
-)
-
-type CertificateStore interface {
-	LifecycleService
-	Pool() *x509.CertPool
-}
-
-func RootPoolFromContext(ctx context.Context) *x509.CertPool {
-	store := service.FromContext[CertificateStore](ctx)
-	if store == nil {
-		return nil
-	}
-	return store.Pool()
-}

adapter/dns.go

@@ -1,73 +0,0 @@
-package adapter
-
-import (
-	"context"
-	"net/netip"
-
-	C "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing-box/log"
-	"github.com/sagernet/sing-box/option"
-	"github.com/sagernet/sing/common/logger"
-
-	"github.com/miekg/dns"
-)
-
-type DNSRouter interface {
-	Lifecycle
-	Exchange(ctx context.Context, message *dns.Msg, options DNSQueryOptions) (*dns.Msg, error)
-	Lookup(ctx context.Context, domain string, options DNSQueryOptions) ([]netip.Addr, error)
-	ClearCache()
-	LookupReverseMapping(ip netip.Addr) (string, bool)
-	ResetNetwork()
-}
-
-type DNSClient interface {
-	Start()
-	Exchange(ctx context.Context, transport DNSTransport, message *dns.Msg, options DNSQueryOptions, responseChecker func(responseAddrs []netip.Addr) bool) (*dns.Msg, error)
-	Lookup(ctx context.Context, transport DNSTransport, domain string, options DNSQueryOptions, responseChecker func(responseAddrs []netip.Addr) bool) ([]netip.Addr, error)
-	LookupCache(domain string, strategy C.DomainStrategy) ([]netip.Addr, bool)
-	ExchangeCache(ctx context.Context, message *dns.Msg) (*dns.Msg, bool)
-	ClearCache()
-}
-
-type DNSQueryOptions struct {
-	Transport    DNSTransport
-	Strategy     C.DomainStrategy
-	DisableCache bool
-	RewriteTTL   *uint32
-	ClientSubnet netip.Prefix
-}
-
-type RDRCStore interface {
-	LoadRDRC(transportName string, qName string, qType uint16) (rejected bool)
-	SaveRDRC(transportName string, qName string, qType uint16) error
-	SaveRDRCAsync(transportName string, qName string, qType uint16, logger logger.Logger)
-}
-
-type DNSTransport interface {
-	Type() string
-	Tag() string
-	Dependencies() []string
-	Reset()
-	Exchange(ctx context.Context, message *dns.Msg) (*dns.Msg, error)
-}
-
-type LegacyDNSTransport interface {
-	LegacyStrategy() C.DomainStrategy
-	LegacyClientSubnet() netip.Prefix
-}
-
-type DNSTransportRegistry interface {
-	option.DNSTransportOptionsRegistry
-	CreateDNSTransport(ctx context.Context, logger log.ContextLogger, tag string, transportType string, options any) (DNSTransport, error)
-}
-
-type DNSTransportManager interface {
-	Lifecycle
-	Transports() []DNSTransport
-	Transport(tag string) (DNSTransport, bool)
-	Default() DNSTransport
-	FakeIP() FakeIPTransport
-	Remove(tag string) error
-	Create(ctx context.Context, logger log.ContextLogger, tag string, outboundType string, options any) error
-}

adapter/experimental.go

@@ -6,6 +6,8 @@ import (
 	"encoding/binary"
 	"time"
 
+	"github.com/sagernet/sing-box/common/urltest"
+	"github.com/sagernet/sing-dns"
 	"github.com/sagernet/sing/common/varbin"
 )
 
@@ -14,20 +16,7 @@ type ClashServer interface {
 	ConnectionTracker
 	Mode() string
 	ModeList() []string
-	HistoryStorage() URLTestHistoryStorage
-}
-
-type URLTestHistory struct {
-	Time  time.Time `json:"time"`
-	Delay uint16    `json:"delay"`
-}
-
-type URLTestHistoryStorage interface {
-	SetHook(hook chan<- struct{})
-	LoadURLTestHistory(tag string) *URLTestHistory
-	DeleteURLTestHistory(tag string)
-	StoreURLTestHistory(tag string, history *URLTestHistory)
-	Close() error
+	HistoryStorage() *urltest.HistoryStorage
 }
 
 type V2RayServer interface {
@@ -42,7 +31,7 @@ type CacheFile interface {
 	FakeIPStorage
 
 	StoreRDRC() bool
-	RDRCStore
+	dns.RDRCStore
 
 	LoadMode() string
 	StoreMode(mode string) error
@@ -52,10 +41,6 @@ type CacheFile interface {
 	StoreGroupExpand(group string, expand bool) error
 	LoadRuleSet(tag string) *SavedBinary
 	SaveRuleSet(tag string, set *SavedBinary) error
-	LoadScript(tag string) *SavedBinary
-	SaveScript(tag string, script *SavedBinary) error
-	SurgePersistentStoreRead(key string) string
-	SurgePersistentStoreWrite(key string, value string) error
 }
 
 type SavedBinary struct {

adapter/fakeip.go

@@ -3,6 +3,7 @@ package adapter
 import (
 	"net/netip"
 
+	"github.com/sagernet/sing-dns"
 	"github.com/sagernet/sing/common/logger"
 )
 
@@ -26,6 +27,6 @@ type FakeIPStorage interface {
 }
 
 type FakeIPTransport interface {
-	DNSTransport
+	dns.Transport
 	Store() FakeIPStore
 }

adapter/inbound.go

@@ -2,8 +2,6 @@ package adapter
 
 import (
 	"context"
-	"crypto/tls"
-	"net/http"
 	"net/netip"
 	"time"
 
@@ -55,12 +53,11 @@ type InboundContext struct {
 
 	// sniffer
 
-	Protocol     string
-	Domain       string
-	Client       string
-	SniffContext any
-	HTTPRequest  *http.Request
-	ClientHello  *tls.ClientHelloInfo
+	Protocol         string
+	Domain           string
+	Client           string
+	SniffContext     any
+	PacketSniffError error
 
 	// cache
 
@@ -75,15 +72,14 @@ type InboundContext struct {
 	UDPDisableDomainUnmapping bool
 	UDPConnect                bool
 	UDPTimeout                time.Duration
-	TLSFragment               bool
-	TLSFragmentFallbackDelay  time.Duration
-	MITM                      *option.MITMRouteOptions
 
 	NetworkStrategy     *C.NetworkStrategy
 	NetworkType         []C.InterfaceType
 	FallbackNetworkType []C.InterfaceType
 	FallbackDelay       time.Duration
 
+	DNSServer string
+
 	DestinationAddresses []netip.Addr
 	SourceGeoIPCode      string
 	GeoIPCode            string

adapter/lifecycle.go

@@ -1,8 +1,6 @@
 package adapter
 
-import (
-	E "github.com/sagernet/sing/common/exceptions"
-)
+import E "github.com/sagernet/sing/common/exceptions"
 
 type StartStage uint8
 
@@ -47,9 +45,6 @@ type LifecycleService interface {
 
 func Start(stage StartStage, services ...Lifecycle) error {
 	for _, service := range services {
-		if service == nil {
-			continue
-		}
 		err := service.Start(stage)
 		if err != nil {
 			return err

adapter/mitm.go

@@ -1,15 +0,0 @@
-package adapter
-
-import (
-	"context"
-	"crypto/x509"
-	"net"
-
-	N "github.com/sagernet/sing/common/network"
-)
-
-type MITMEngine interface {
-	Lifecycle
-	ExportCertificate() *x509.Certificate
-	NewConnection(ctx context.Context, this N.Dialer, conn net.Conn, metadata InboundContext, onClose N.CloseHandlerFunc)
-}

adapter/network.go

@@ -25,17 +25,16 @@ type NetworkManager interface {
 	PackageManager() tun.PackageManager
 	WIFIState() WIFIState
 	ResetNetwork()
+	UpdateWIFIState()
 }
 
 type NetworkOptions struct {
-	BindInterface        string
-	RoutingMark          uint32
-	DomainResolver       string
-	DomainResolveOptions DNSQueryOptions
-	NetworkStrategy      *C.NetworkStrategy
-	NetworkType          []C.InterfaceType
-	FallbackNetworkType  []C.InterfaceType
-	FallbackDelay        time.Duration
+	NetworkStrategy     *C.NetworkStrategy
+	NetworkType         []C.InterfaceType
+	FallbackNetworkType []C.InterfaceType
+	FallbackDelay       time.Duration
+	BindInterface       string
+	RoutingMark         uint32
 }
 
 type InterfaceUpdateListener interface {

adapter/outbound/manager.go

@@ -23,7 +23,7 @@ type Manager struct {
 	registry                adapter.OutboundRegistry
 	endpoint                adapter.EndpointManager
 	defaultTag              string
-	access                  sync.RWMutex
+	access                  sync.Mutex
 	started                 bool
 	stage                   adapter.StartStage
 	outbounds               []adapter.Outbound
@@ -169,15 +169,15 @@ func (m *Manager) Close() error {
 }
 
 func (m *Manager) Outbounds() []adapter.Outbound {
-	m.access.RLock()
-	defer m.access.RUnlock()
+	m.access.Lock()
+	defer m.access.Unlock()
 	return m.outbounds
 }
 
 func (m *Manager) Outbound(tag string) (adapter.Outbound, bool) {
-	m.access.RLock()
+	m.access.Lock()
 	outbound, found := m.outboundByTag[tag]
-	m.access.RUnlock()
+	m.access.Unlock()
 	if found {
 		return outbound, true
 	}
@@ -185,8 +185,8 @@ func (m *Manager) Outbound(tag string) (adapter.Outbound, bool) {
 }
 
 func (m *Manager) Default() adapter.Outbound {
-	m.access.RLock()
-	defer m.access.RUnlock()
+	m.access.Lock()
+	defer m.access.Unlock()
 	if m.defaultOutbound != nil {
 		return m.defaultOutbound
 	} else {
@@ -196,9 +196,9 @@ func (m *Manager) Default() adapter.Outbound {
 
 func (m *Manager) Remove(tag string) error {
 	m.access.Lock()
-	defer m.access.Unlock()
 	outbound, found := m.outboundByTag[tag]
 	if !found {
+		m.access.Unlock()
 		return os.ErrInvalid
 	}
 	delete(m.outboundByTag, tag)
@@ -232,6 +232,7 @@ func (m *Manager) Remove(tag string) error {
 			})
 		}
 	}
+	m.access.Unlock()
 	if started {
 		return common.Close(outbound)
 	}

adapter/router.go

@@ -2,29 +2,44 @@ package adapter
 
 import (
 	"context"
-	"crypto/tls"
 	"net"
 	"net/http"
+	"net/netip"
 	"sync"
 
+	"github.com/sagernet/sing-box/common/geoip"
 	C "github.com/sagernet/sing-box/constant"
+	"github.com/sagernet/sing-dns"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
-	"github.com/sagernet/sing/common/ntp"
 	"github.com/sagernet/sing/common/x/list"
 
+	mdns "github.com/miekg/dns"
 	"go4.org/netipx"
 )
 
 type Router interface {
 	Lifecycle
+
+	FakeIPStore() FakeIPStore
+
 	ConnectionRouter
 	PreMatch(metadata InboundContext) error
 	ConnectionRouterEx
+
+	GeoIPReader() *geoip.Reader
+	LoadGeosite(code string) (Rule, error)
 	RuleSet(tag string) (RuleSet, bool)
 	NeedWIFIState() bool
+
+	Exchange(ctx context.Context, message *mdns.Msg) (*mdns.Msg, error)
+	Lookup(ctx context.Context, domain string, strategy dns.DomainStrategy) ([]netip.Addr, error)
+	LookupDefault(ctx context.Context, domain string) ([]netip.Addr, error)
+	ClearDNSCache()
 	Rules() []Rule
-	SetTracker(tracker ConnectionTracker)
+
+	AppendTracker(tracker ConnectionTracker)
+
 	ResetNetwork()
 }
 
@@ -68,14 +83,12 @@ type RuleSetMetadata struct {
 	ContainsIPCIDRRule  bool
 }
 type HTTPStartContext struct {
-	ctx             context.Context
 	access          sync.Mutex
 	httpClientCache map[string]*http.Client
 }
 
-func NewHTTPStartContext(ctx context.Context) *HTTPStartContext {
+func NewHTTPStartContext() *HTTPStartContext {
 	return &HTTPStartContext{
-		ctx:             ctx,
 		httpClientCache: make(map[string]*http.Client),
 	}
 }
@@ -93,10 +106,6 @@ func (c *HTTPStartContext) HTTPClient(detour string, dialer N.Dialer) *http.Clie
 			DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
 				return dialer.DialContext(ctx, network, M.ParseSocksaddr(addr))
 			},
-			TLSClientConfig: &tls.Config{
-				Time:    ntp.TimeFuncFromContext(c.ctx),
-				RootCAs: RootPoolFromContext(c.ctx),
-			},
 		},
 	}
 	c.httpClientCache[detour] = httpClient

adapter/rule.go

@@ -13,6 +13,7 @@ type Rule interface {
 	HeadlessRule
 	Service
 	Type() string
+	UpdateGeosite() error
 	Action() RuleAction
 }
 

adapter/script.go

@@ -1,54 +0,0 @@
-package adapter
-
-import (
-	"context"
-	"net/http"
-	"sync"
-	"time"
-)
-
-type ScriptManager interface {
-	Lifecycle
-	Scripts() []Script
-	Script(name string) (Script, bool)
-	SurgeCache() *SurgeInMemoryCache
-}
-
-type SurgeInMemoryCache struct {
-	sync.RWMutex
-	Data map[string]string
-}
-
-type Script interface {
-	Type() string
-	Tag() string
-	StartContext(ctx context.Context, startContext *HTTPStartContext) error
-	PostStart() error
-	Close() error
-}
-
-type SurgeScript interface {
-	Script
-	ExecuteGeneric(ctx context.Context, scriptType string, timeout time.Duration, arguments []string) error
-	ExecuteHTTPRequest(ctx context.Context, timeout time.Duration, request *http.Request, body []byte, binaryBody bool, arguments []string) (*HTTPRequestScriptResult, error)
-	ExecuteHTTPResponse(ctx context.Context, timeout time.Duration, request *http.Request, response *http.Response, body []byte, binaryBody bool, arguments []string) (*HTTPResponseScriptResult, error)
-}
-
-type HTTPRequestScriptResult struct {
-	URL      string
-	Headers  http.Header
-	Body     []byte
-	Response *HTTPRequestScriptResponse
-}
-
-type HTTPRequestScriptResponse struct {
-	Status  int
-	Headers http.Header
-	Body    []byte
-}
-
-type HTTPResponseScriptResult struct {
-	Status  int
-	Headers http.Header
-	Body    []byte
-}

box.go

@@ -12,22 +12,17 @@ import (
 	"github.com/sagernet/sing-box/adapter/endpoint"
 	"github.com/sagernet/sing-box/adapter/inbound"
 	"github.com/sagernet/sing-box/adapter/outbound"
-	"github.com/sagernet/sing-box/common/certificate"
 	"github.com/sagernet/sing-box/common/dialer"
 	"github.com/sagernet/sing-box/common/taskmonitor"
 	"github.com/sagernet/sing-box/common/tls"
 	C "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing-box/dns"
-	"github.com/sagernet/sing-box/dns/transport/local"
 	"github.com/sagernet/sing-box/experimental"
 	"github.com/sagernet/sing-box/experimental/cachefile"
 	"github.com/sagernet/sing-box/experimental/libbox/platform"
 	"github.com/sagernet/sing-box/log"
-	"github.com/sagernet/sing-box/mitm"
 	"github.com/sagernet/sing-box/option"
 	"github.com/sagernet/sing-box/protocol/direct"
 	"github.com/sagernet/sing-box/route"
-	"github.com/sagernet/sing-box/script"
 	"github.com/sagernet/sing/common"
 	E "github.com/sagernet/sing/common/exceptions"
 	F "github.com/sagernet/sing/common/format"
@@ -39,21 +34,17 @@ import (
 var _ adapter.Service = (*Box)(nil)
 
 type Box struct {
-	createdAt    time.Time
-	logFactory   log.Factory
-	logger       log.ContextLogger
-	network      *route.NetworkManager
-	endpoint     *endpoint.Manager
-	inbound      *inbound.Manager
-	outbound     *outbound.Manager
-	dnsTransport *dns.TransportManager
-	dnsRouter    *dns.Router
-	connection   *route.ConnectionManager
-	router       *route.Router
-	script       *script.Manager
-	mitm         adapter.MITMEngine //*mitm.Engine
-	services     []adapter.LifecycleService
-	done         chan struct{}
+	createdAt  time.Time
+	logFactory log.Factory
+	logger     log.ContextLogger
+	network    *route.NetworkManager
+	endpoint   *endpoint.Manager
+	inbound    *inbound.Manager
+	outbound   *outbound.Manager
+	connection *route.ConnectionManager
+	router     *route.Router
+	services   []adapter.LifecycleService
+	done       chan struct{}
 }
 
 type Options struct {
@@ -67,7 +58,6 @@ func Context(
 	inboundRegistry adapter.InboundRegistry,
 	outboundRegistry adapter.OutboundRegistry,
 	endpointRegistry adapter.EndpointRegistry,
-	dnsTransportRegistry adapter.DNSTransportRegistry,
 ) context.Context {
 	if service.FromContext[option.InboundOptionsRegistry](ctx) == nil ||
 		service.FromContext[adapter.InboundRegistry](ctx) == nil {
@@ -84,10 +74,6 @@ func Context(
 		ctx = service.ContextWith[option.EndpointOptionsRegistry](ctx, endpointRegistry)
 		ctx = service.ContextWith[adapter.EndpointRegistry](ctx, endpointRegistry)
 	}
-	if service.FromContext[adapter.DNSTransportRegistry](ctx) == nil {
-		ctx = service.ContextWith[option.DNSTransportOptionsRegistry](ctx, dnsTransportRegistry)
-		ctx = service.ContextWith[adapter.DNSTransportRegistry](ctx, dnsTransportRegistry)
-	}
 	return ctx
 }
 
@@ -102,7 +88,6 @@ func New(options Options) (*Box, error) {
 	endpointRegistry := service.FromContext[adapter.EndpointRegistry](ctx)
 	inboundRegistry := service.FromContext[adapter.InboundRegistry](ctx)
 	outboundRegistry := service.FromContext[adapter.OutboundRegistry](ctx)
-	dnsTransportRegistry := service.FromContext[adapter.DNSTransportRegistry](ctx)
 
 	if endpointRegistry == nil {
 		return nil, E.New("missing endpoint registry in context")
@@ -146,73 +131,33 @@ func New(options Options) (*Box, error) {
 		return nil, E.Cause(err, "create log factory")
 	}
 
-	var services []adapter.LifecycleService
-	certificateOptions := common.PtrValueOrDefault(options.Certificate)
-	if C.IsAndroid || certificateOptions.Store != "" && certificateOptions.Store != C.CertificateStoreSystem ||
-		len(certificateOptions.Certificate) > 0 ||
-		len(certificateOptions.CertificatePath) > 0 ||
-		len(certificateOptions.CertificateDirectoryPath) > 0 {
-		certificateStore, err := certificate.NewStore(ctx, logFactory.NewLogger("certificate"), certificateOptions)
-		if err != nil {
-			return nil, err
-		}
-		service.MustRegister[adapter.CertificateStore](ctx, certificateStore)
-		services = append(services, certificateStore)
-	}
-
 	routeOptions := common.PtrValueOrDefault(options.Route)
-	dnsOptions := common.PtrValueOrDefault(options.DNS)
 	endpointManager := endpoint.NewManager(logFactory.NewLogger("endpoint"), endpointRegistry)
 	inboundManager := inbound.NewManager(logFactory.NewLogger("inbound"), inboundRegistry, endpointManager)
 	outboundManager := outbound.NewManager(logFactory.NewLogger("outbound"), outboundRegistry, endpointManager, routeOptions.Final)
-	dnsTransportManager := dns.NewTransportManager(logFactory.NewLogger("dns/transport"), dnsTransportRegistry, outboundManager, dnsOptions.Final)
 	service.MustRegister[adapter.EndpointManager](ctx, endpointManager)
 	service.MustRegister[adapter.InboundManager](ctx, inboundManager)
 	service.MustRegister[adapter.OutboundManager](ctx, outboundManager)
-	service.MustRegister[adapter.DNSTransportManager](ctx, dnsTransportManager)
-	dnsRouter := dns.NewRouter(ctx, logFactory, dnsOptions)
-	service.MustRegister[adapter.DNSRouter](ctx, dnsRouter)
+
 	networkManager, err := route.NewNetworkManager(ctx, logFactory.NewLogger("network"), routeOptions)
 	if err != nil {
 		return nil, E.Cause(err, "initialize network manager")
 	}
 	service.MustRegister[adapter.NetworkManager](ctx, networkManager)
-	connectionManager := route.NewConnectionManager(ctx, logFactory.NewLogger("connection"))
+	connectionManager := route.NewConnectionManager(logFactory.NewLogger("connection"))
 	service.MustRegister[adapter.ConnectionManager](ctx, connectionManager)
-	router := route.NewRouter(ctx, logFactory, routeOptions, dnsOptions)
-	service.MustRegister[adapter.Router](ctx, router)
-	err = router.Initialize(routeOptions.Rules, routeOptions.RuleSet)
+	router, err := route.NewRouter(ctx, logFactory, routeOptions, common.PtrValueOrDefault(options.DNS))
 	if err != nil {
 		return nil, E.Cause(err, "initialize router")
 	}
-	var timeService *tls.TimeServiceWrapper
+
 	ntpOptions := common.PtrValueOrDefault(options.NTP)
+	var timeService *tls.TimeServiceWrapper
 	if ntpOptions.Enabled {
 		timeService = new(tls.TimeServiceWrapper)
 		service.MustRegister[ntp.TimeService](ctx, timeService)
 	}
-	for i, transportOptions := range dnsOptions.Servers {
-		var tag string
-		if transportOptions.Tag != "" {
-			tag = transportOptions.Tag
-		} else {
-			tag = F.ToString(i)
-		}
-		err = dnsTransportManager.Create(
-			ctx,
-			logFactory.NewLogger(F.ToString("dns/", transportOptions.Type, "[", tag, "]")),
-			tag,
-			transportOptions.Type,
-			transportOptions.Options,
-		)
-		if err != nil {
-			return nil, E.Cause(err, "initialize DNS server[", i, "]")
-		}
-	}
-	err = dnsRouter.Initialize(dnsOptions.Rules)
-	if err != nil {
-		return nil, E.Cause(err, "initialize dns router")
-	}
+
 	for i, endpointOptions := range options.Endpoints {
 		var tag string
 		if endpointOptions.Tag != "" {
@@ -220,8 +165,15 @@ func New(options Options) (*Box, error) {
 		} else {
 			tag = F.ToString(i)
 		}
+		endpointCtx := ctx
+		if tag != "" {
+			// TODO: remove this
+			endpointCtx = adapter.WithContext(endpointCtx, &adapter.InboundContext{
+				Outbound: tag,
+			})
+		}
 		err = endpointManager.Create(
-			ctx,
+			endpointCtx,
 			router,
 			logFactory.NewLogger(F.ToString("endpoint/", endpointOptions.Type, "[", tag, "]")),
 			tag,
@@ -229,7 +181,7 @@ func New(options Options) (*Box, error) {
 			endpointOptions.Options,
 		)
 		if err != nil {
-			return nil, E.Cause(err, "initialize endpoint[", i, "]")
+			return nil, E.Cause(err, "initialize inbound[", i, "]")
 		}
 	}
 	for i, inboundOptions := range options.Inbounds {
@@ -286,24 +238,13 @@ func New(options Options) (*Box, error) {
 			option.DirectOutboundOptions{},
 		),
 	))
-	dnsTransportManager.Initialize(common.Must1(
-		local.NewTransport(
-			ctx,
-			logFactory.NewLogger("dns/local"),
-			"local",
-			option.LocalDNSServerOptions{},
-		)))
-	scriptManager, err := script.NewManager(ctx, logFactory, options.Scripts)
-	if err != nil {
-		return nil, E.Cause(err, "initialize script manager")
-	}
-	service.MustRegister[adapter.ScriptManager](ctx, scriptManager)
 	if platformInterface != nil {
 		err = platformInterface.Initialize(networkManager)
 		if err != nil {
 			return nil, E.Cause(err, "initialize platform interface")
 		}
 	}
+	var services []adapter.LifecycleService
 	if needCacheFile {
 		cacheFile := cachefile.New(ctx, common.PtrValueOrDefault(experimentalOptions.CacheFile))
 		service.MustRegister[adapter.CacheFile](ctx, cacheFile)
@@ -316,7 +257,7 @@ func New(options Options) (*Box, error) {
 		if err != nil {
 			return nil, E.Cause(err, "create clash-server")
 		}
-		router.SetTracker(clashServer)
+		router.AppendTracker(clashServer)
 		service.MustRegister[adapter.ClashServer](ctx, clashServer)
 		services = append(services, clashServer)
 	}
@@ -326,13 +267,13 @@ func New(options Options) (*Box, error) {
 			return nil, E.Cause(err, "create v2ray-server")
 		}
 		if v2rayServer.StatsService() != nil {
-			router.SetTracker(v2rayServer.StatsService())
+			router.AppendTracker(v2rayServer.StatsService())
 			services = append(services, v2rayServer)
 			service.MustRegister[adapter.V2RayServer](ctx, v2rayServer)
 		}
 	}
 	if ntpOptions.Enabled {
-		ntpDialer, err := dialer.New(ctx, ntpOptions.DialerOptions, ntpOptions.ServerIsDomain())
+		ntpDialer, err := dialer.New(ctx, ntpOptions.DialerOptions)
 		if err != nil {
 			return nil, E.Cause(err, "create NTP service")
 		}
@@ -347,32 +288,18 @@ func New(options Options) (*Box, error) {
 		timeService.TimeService = ntpService
 		services = append(services, adapter.NewLifecycleService(ntpService, "ntp service"))
 	}
-	mitmOptions := common.PtrValueOrDefault(options.MITM)
-	var mitmEngine adapter.MITMEngine
-	if mitmOptions.Enabled {
-		engine, err := mitm.NewEngine(ctx, logFactory.NewLogger("mitm"), mitmOptions)
-		if err != nil {
-			return nil, E.Cause(err, "create MITM engine")
-		}
-		service.MustRegister[adapter.MITMEngine](ctx, engine)
-		mitmEngine = engine
-	}
 	return &Box{
-		network:      networkManager,
-		endpoint:     endpointManager,
-		inbound:      inboundManager,
-		outbound:     outboundManager,
-		dnsTransport: dnsTransportManager,
-		dnsRouter:    dnsRouter,
-		connection:   connectionManager,
-		router:       router,
-		script:       scriptManager,
-		mitm:         mitmEngine,
-		createdAt:    createdAt,
-		logFactory:   logFactory,
-		logger:       logFactory.Logger(),
-		services:     services,
-		done:         make(chan struct{}),
+		network:    networkManager,
+		endpoint:   endpointManager,
+		inbound:    inboundManager,
+		outbound:   outboundManager,
+		connection: connectionManager,
+		router:     router,
+		createdAt:  createdAt,
+		logFactory: logFactory,
+		logger:     logFactory.Logger(),
+		services:   services,
+		done:       make(chan struct{}),
 	}, nil
 }
 
@@ -426,11 +353,11 @@ func (s *Box) preStart() error {
 	if err != nil {
 		return err
 	}
-	err = adapter.Start(adapter.StartStateInitialize, s.network, s.dnsTransport, s.dnsRouter, s.connection, s.router, s.script, s.mitm, s.outbound, s.inbound, s.endpoint)
+	err = adapter.Start(adapter.StartStateInitialize, s.network, s.connection, s.router, s.outbound, s.inbound, s.endpoint)
 	if err != nil {
 		return err
 	}
-	err = adapter.Start(adapter.StartStateStart, s.outbound, s.dnsTransport, s.dnsRouter, s.network, s.connection, s.router, s.script, s.mitm)
+	err = adapter.Start(adapter.StartStateStart, s.outbound, s.network, s.connection, s.router)
 	if err != nil {
 		return err
 	}
@@ -454,7 +381,7 @@ func (s *Box) start() error {
 	if err != nil {
 		return err
 	}
-	err = adapter.Start(adapter.StartStatePostStart, s.outbound, s.network, s.dnsTransport, s.dnsRouter, s.connection, s.router, s.script, s.mitm, s.inbound, s.endpoint)
+	err = adapter.Start(adapter.StartStatePostStart, s.outbound, s.network, s.connection, s.router, s.inbound, s.endpoint)
 	if err != nil {
 		return err
 	}
@@ -462,7 +389,7 @@ func (s *Box) start() error {
 	if err != nil {
 		return err
 	}
-	err = adapter.Start(adapter.StartStateStarted, s.network, s.dnsTransport, s.dnsRouter, s.connection, s.router, s.script, s.mitm, s.outbound, s.inbound, s.endpoint)
+	err = adapter.Start(adapter.StartStateStarted, s.network, s.connection, s.router, s.outbound, s.inbound, s.endpoint)
 	if err != nil {
 		return err
 	}
@@ -481,7 +408,7 @@ func (s *Box) Close() error {
 		close(s.done)
 	}
 	err := common.Close(
-		s.inbound, s.outbound, s.endpoint, s.mitm, s.script, s.router, s.connection, s.dnsRouter, s.dnsTransport, s.network,
+		s.inbound, s.outbound, s.endpoint, s.router, s.connection, s.network,
 	)
 	for _, lifecycleService := range s.services {
 		err = E.Append(err, lifecycleService.Close(), func(err error) error {

cmd/internal/build_shared/sdk.go

@@ -48,7 +48,7 @@ func FindSDK() {
 }
 
 func findNDK() bool {
-	const fixedVersion = "28.0.12916984"
+	const fixedVersion = "28.0.13004108"
 	const versionFile = "source.properties"
 	if fixedPath := filepath.Join(androidSDKPath, "ndk", fixedVersion); rw.IsFile(filepath.Join(fixedPath, versionFile)) {
 		androidNDKPath = fixedPath

cmd/internal/read_tag/main.go

@@ -5,40 +5,49 @@ import (
 	"os"
 
 	"github.com/sagernet/sing-box/cmd/internal/build_shared"
+	"github.com/sagernet/sing-box/common/badversion"
 	"github.com/sagernet/sing-box/log"
 )
 
-var nightly bool
+var (
+	flagRunInCI    bool
+	flagRunNightly bool
+)
 
 func init() {
-	flag.BoolVar(&nightly, "nightly", false, "Print nightly tag")
+	flag.BoolVar(&flagRunInCI, "ci", false, "Run in CI")
+	flag.BoolVar(&flagRunNightly, "nightly", false, "Run nightly")
 }
 
 func main() {
 	flag.Parse()
-	if nightly {
-		version, err := build_shared.ReadTagVersionRev()
+	var (
+		versionStr string
+		err        error
+	)
+	if flagRunNightly {
+		var version badversion.Version
+		version, err = build_shared.ReadTagVersion()
+		if err == nil {
+			versionStr = version.String()
+		}
+	} else {
+		versionStr, err = build_shared.ReadTag()
+	}
+	if flagRunInCI {
 		if err != nil {
 			log.Fatal(err)
 		}
-		var versionStr string
-		if version.PreReleaseIdentifier != "" {
-			versionStr = version.VersionString() + "-nightly"
-		} else {
-			version.Patch++
-			versionStr = version.VersionString() + "-nightly"
-		}
 		err = setGitHubEnv("version", versionStr)
 		if err != nil {
 			log.Fatal(err)
 		}
 	} else {
-		tag, err := build_shared.ReadTag()
 		if err != nil {
 			log.Error(err)
 			os.Stdout.WriteString("unknown\n")
 		} else {
-			os.Stdout.WriteString(tag + "\n")
+			os.Stdout.WriteString(versionStr + "\n")
 		}
 	}
 }

cmd/internal/update_android_version/main.go

@@ -13,10 +13,14 @@ import (
 	"github.com/sagernet/sing/common"
 )
 
-var flagRunInCI bool
+var (
+	flagRunInCI    bool
+	flagRunNightly bool
+)
 
 func init() {
 	flag.BoolVar(&flagRunInCI, "ci", false, "Run in CI")
+	flag.BoolVar(&flagRunNightly, "nightly", false, "Run nightly")
 }
 
 func main() {
@@ -46,21 +50,23 @@ func main() {
 		switch propPair[0] {
 		case "VERSION_NAME":
 			if propPair[1] != newVersion {
+				log.Info("updated version from ", propPair[1], " to ", newVersion)
 				versionUpdated = true
 				propPair[1] = newVersion
-				log.Info("updated version to ", newVersion)
 			}
 		case "GO_VERSION":
 			if propPair[1] != runtime.Version() {
+				log.Info("updated Go version from ", propPair[1], " to ", runtime.Version())
 				goVersionUpdated = true
 				propPair[1] = runtime.Version()
-				log.Info("updated Go version to ", runtime.Version())
 			}
 		}
 	}
 	if !(versionUpdated || goVersionUpdated) {
 		log.Info("version not changed")
 		return
+	} else if flagRunInCI && !flagRunNightly {
+		log.Fatal("version changed, commit changes first.")
 	}
 	for _, propPair := range propsList {
 		switch propPair[0] {

cmd/internal/update_certificates/main.go

@@ -1,68 +0,0 @@
-package main
-
-import (
-	"encoding/csv"
-	"io"
-	"net/http"
-	"os"
-	"strings"
-
-	"github.com/sagernet/sing-box/log"
-
-	"golang.org/x/exp/slices"
-)
-
-func main() {
-	err := updateMozillaIncludedRootCAs()
-	if err != nil {
-		log.Error(err)
-	}
-}
-
-func updateMozillaIncludedRootCAs() error {
-	response, err := http.Get("https://ccadb.my.salesforce-sites.com/mozilla/IncludedCACertificateReportPEMCSV")
-	if err != nil {
-		return err
-	}
-	defer response.Body.Close()
-	reader := csv.NewReader(response.Body)
-	header, err := reader.Read()
-	if err != nil {
-		return err
-	}
-	geoIndex := slices.Index(header, "Geographic Focus")
-	nameIndex := slices.Index(header, "Common Name or Certificate Name")
-	certIndex := slices.Index(header, "PEM Info")
-
-	generated := strings.Builder{}
-	generated.WriteString(`// Code generated by 'make update_certificates'. DO NOT EDIT.
-
-package certificate
-
-import "crypto/x509"
-
-var mozillaIncluded *x509.CertPool
-
-func init() {
-	mozillaIncluded = x509.NewCertPool()
-`)
-	for {
-		record, err := reader.Read()
-		if err == io.EOF {
-			break
-		} else if err != nil {
-			return err
-		}
-		if record[geoIndex] == "China" {
-			continue
-		}
-		generated.WriteString("\n	// ")
-		generated.WriteString(record[nameIndex])
-		generated.WriteString("\n")
-		generated.WriteString("	mozillaIncluded.AppendCertsFromPEM([]byte(`")
-		generated.WriteString(record[certIndex])
-		generated.WriteString("`))\n")
-	}
-	generated.WriteString("}\n")
-	return os.WriteFile("common/certificate/mozilla.go", []byte(generated.String()), 0o644)
-}

cmd/sing-box/cmd.go

@@ -69,5 +69,5 @@ func preRun(cmd *cobra.Command, args []string) {
 		configPaths = append(configPaths, "config.json")
 	}
 	globalCtx = service.ContextWith(globalCtx, deprecated.NewStderrManager(log.StdLogger()))
-	globalCtx = box.Context(globalCtx, include.InboundRegistry(), include.OutboundRegistry(), include.EndpointRegistry(), include.DNSTransportRegistry())
+	globalCtx = box.Context(globalCtx, include.InboundRegistry(), include.OutboundRegistry(), include.EndpointRegistry())
 }

cmd/sing-box/cmd_rule_set_match.go

@@ -5,6 +5,7 @@ import (
 	"context"
 	"io"
 	"os"
+	"path/filepath"
 
 	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-box/common/srs"
@@ -56,6 +57,14 @@ func ruleSetMatch(sourcePath string, domain string) error {
 	if err != nil {
 		return E.Cause(err, "read rule-set")
 	}
+	if flagRuleSetMatchFormat == "" {
+		switch filepath.Ext(sourcePath) {
+		case ".json":
+			flagRuleSetMatchFormat = C.RuleSetFormatSource
+		case ".srs":
+			flagRuleSetMatchFormat = C.RuleSetFormatBinary
+		}
+	}
 	var ruleSet option.PlainRuleSetCompat
 	switch flagRuleSetMatchFormat {
 	case C.RuleSetFormatSource:

common/certificate/store.go

@@ -1,184 +0,0 @@
-package certificate
-
-import (
-	"context"
-	"crypto/x509"
-	"io/fs"
-	"os"
-	"path/filepath"
-	"strings"
-
-	"github.com/sagernet/fswatch"
-	"github.com/sagernet/sing-box/adapter"
-	C "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing-box/experimental/libbox/platform"
-	"github.com/sagernet/sing-box/option"
-	E "github.com/sagernet/sing/common/exceptions"
-	"github.com/sagernet/sing/common/logger"
-	"github.com/sagernet/sing/service"
-)
-
-var _ adapter.CertificateStore = (*Store)(nil)
-
-type Store struct {
-	systemPool                *x509.CertPool
-	currentPool               *x509.CertPool
-	certificate               string
-	certificatePaths          []string
-	certificateDirectoryPaths []string
-	watcher                   *fswatch.Watcher
-}
-
-func NewStore(ctx context.Context, logger logger.Logger, options option.CertificateOptions) (*Store, error) {
-	var systemPool *x509.CertPool
-	switch options.Store {
-	case C.CertificateStoreSystem, "":
-		platformInterface := service.FromContext[platform.Interface](ctx)
-		systemCertificates := platformInterface.SystemCertificates()
-		if len(systemCertificates) > 0 {
-			systemPool = x509.NewCertPool()
-			for _, cert := range systemCertificates {
-				if !systemPool.AppendCertsFromPEM([]byte(cert)) {
-					return nil, E.New("invalid system certificate PEM: ", cert)
-				}
-			}
-		} else {
-			certPool, err := x509.SystemCertPool()
-			if err != nil {
-				return nil, err
-			}
-			systemPool = certPool
-		}
-	case C.CertificateStoreMozilla:
-		systemPool = mozillaIncluded
-	case C.CertificateStoreNone:
-		systemPool = nil
-	default:
-		return nil, E.New("unknown certificate store: ", options.Store)
-	}
-	store := &Store{
-		systemPool:                systemPool,
-		certificate:               strings.Join(options.Certificate, "\n"),
-		certificatePaths:          options.CertificatePath,
-		certificateDirectoryPaths: options.CertificateDirectoryPath,
-	}
-	var watchPaths []string
-	for _, target := range options.CertificatePath {
-		watchPaths = append(watchPaths, target)
-	}
-	for _, target := range options.CertificateDirectoryPath {
-		watchPaths = append(watchPaths, target)
-	}
-	if len(watchPaths) > 0 {
-		watcher, err := fswatch.NewWatcher(fswatch.Options{
-			Path:   watchPaths,
-			Logger: logger,
-			Callback: func(_ string) {
-				err := store.update()
-				if err != nil {
-					logger.Error(E.Cause(err, "reload certificates"))
-				}
-			},
-		})
-		if err != nil {
-			return nil, E.Cause(err, "fswatch: create fsnotify watcher")
-		}
-		store.watcher = watcher
-	}
-	err := store.update()
-	if err != nil {
-		return nil, E.Cause(err, "initializing certificate store")
-	}
-	return store, nil
-}
-
-func (s *Store) Name() string {
-	return "certificate"
-}
-
-func (s *Store) Start(stage adapter.StartStage) error {
-	if stage != adapter.StartStateStart {
-		return nil
-	}
-	if s.watcher != nil {
-		return s.watcher.Start()
-	}
-	return nil
-}
-
-func (s *Store) Close() error {
-	if s.watcher != nil {
-		return s.watcher.Close()
-	}
-	return nil
-}
-
-func (s *Store) Pool() *x509.CertPool {
-	return s.currentPool
-}
-
-func (s *Store) update() error {
-	var currentPool *x509.CertPool
-	if s.systemPool == nil {
-		currentPool = x509.NewCertPool()
-	} else {
-		currentPool = s.systemPool.Clone()
-	}
-	if s.certificate != "" {
-		if !currentPool.AppendCertsFromPEM([]byte(s.certificate)) {
-			return E.New("invalid certificate PEM strings")
-		}
-	}
-	for _, path := range s.certificatePaths {
-		pemContent, err := os.ReadFile(path)
-		if err != nil {
-			return err
-		}
-		if !currentPool.AppendCertsFromPEM(pemContent) {
-			return E.New("invalid certificate PEM file: ", path)
-		}
-	}
-	var firstErr error
-	for _, directoryPath := range s.certificateDirectoryPaths {
-		directoryEntries, err := readUniqueDirectoryEntries(directoryPath)
-		if err != nil {
-			if firstErr == nil && !os.IsNotExist(err) {
-				firstErr = E.Cause(err, "invalid certificate directory: ", directoryPath)
-			}
-			continue
-		}
-		for _, directoryEntry := range directoryEntries {
-			pemContent, err := os.ReadFile(filepath.Join(directoryPath, directoryEntry.Name()))
-			if err == nil {
-				currentPool.AppendCertsFromPEM(pemContent)
-			}
-		}
-	}
-	if firstErr != nil {
-		return firstErr
-	}
-	s.currentPool = currentPool
-	return nil
-}
-
-func readUniqueDirectoryEntries(dir string) ([]fs.DirEntry, error) {
-	files, err := os.ReadDir(dir)
-	if err != nil {
-		return nil, err
-	}
-	uniq := files[:0]
-	for _, f := range files {
-		if !isSameDirSymlink(f, dir) {
-			uniq = append(uniq, f)
-		}
-	}
-	return uniq, nil
-}
-
-func isSameDirSymlink(f fs.DirEntry, dir string) bool {
-	if f.Type()&fs.ModeSymlink == 0 {
-		return false
-	}
-	target, err := os.Readlink(filepath.Join(dir, f.Name()))
-	return err == nil && !strings.Contains(target, "/")
-}

common/dialer/default.go

@@ -35,6 +35,7 @@ type DefaultDialer struct {
 	udpListener            net.ListenConfig
 	udpAddr4               string
 	udpAddr6               string
+	isWireGuardListener    bool
 	networkManager         adapter.NetworkManager
 	networkStrategy        *C.NetworkStrategy
 	defaultNetworkStrategy bool
@@ -182,6 +183,11 @@ func NewDefault(ctx context.Context, options option.DialerOptions) (*DefaultDial
 		}
 		setMultiPathTCP(&dialer4)
 	}
+	if options.IsWireGuardListener {
+		for _, controlFn := range WgControlFns {
+			listener.Control = control.Append(listener.Control, controlFn)
+		}
+	}
 	tcpDialer4, err := newTCPDialer(dialer4, options.TCPFastOpen)
 	if err != nil {
 		return nil, err
@@ -198,6 +204,7 @@ func NewDefault(ctx context.Context, options option.DialerOptions) (*DefaultDial
 		udpListener:            listener,
 		udpAddr4:               udpAddr4,
 		udpAddr6:               udpAddr6,
+		isWireGuardListener:    options.IsWireGuardListener,
 		networkManager:         networkManager,
 		networkStrategy:        networkStrategy,
 		defaultNetworkStrategy: defaultNetworkStrategy,
@@ -326,7 +333,17 @@ func (d *DefaultDialer) ListenSerialInterfacePacket(ctx context.Context, destina
 }
 
 func (d *DefaultDialer) ListenPacketCompat(network, address string) (net.PacketConn, error) {
-	return d.udpListener.ListenPacket(context.Background(), network, address)
+	udpListener := d.udpListener
+	udpListener.Control = control.Append(udpListener.Control, func(network, address string, conn syscall.RawConn) error {
+		for _, wgControlFn := range WgControlFns {
+			err := wgControlFn(network, address, conn)
+			if err != nil {
+				return err
+			}
+		}
+		return nil
+	})
+	return udpListener.ListenPacket(context.Background(), network, address)
 }
 
 func trackConn(conn net.Conn, err error) (net.Conn, error) {

common/dialer/default_parallel_interface.go

@@ -18,6 +18,7 @@ func (d *DefaultDialer) dialParallelInterface(ctx context.Context, dialer net.Di
 	if len(primaryInterfaces)+len(fallbackInterfaces) == 0 {
 		return nil, false, E.New("no available network interface")
 	}
+	defaultInterface := d.networkManager.InterfaceMonitor().DefaultInterface()
 	if fallbackDelay == 0 {
 		fallbackDelay = N.DefaultFallbackDelay
 	}
@@ -31,7 +32,9 @@ func (d *DefaultDialer) dialParallelInterface(ctx context.Context, dialer net.Di
 	results := make(chan dialResult) // unbuffered
 	startRacer := func(ctx context.Context, primary bool, iif adapter.NetworkInterface) {
 		perNetDialer := dialer
-		perNetDialer.Control = control.Append(perNetDialer.Control, control.BindToInterface(nil, iif.Name, iif.Index))
+		if defaultInterface == nil || iif.Index != defaultInterface.Index {
+			perNetDialer.Control = control.Append(perNetDialer.Control, control.BindToInterface(nil, iif.Name, iif.Index))
+		}
 		conn, err := perNetDialer.DialContext(ctx, network, addr)
 		if err != nil {
 			select {
@@ -89,6 +92,7 @@ func (d *DefaultDialer) dialParallelInterfaceFastFallback(ctx context.Context, d
 	if len(primaryInterfaces)+len(fallbackInterfaces) == 0 {
 		return nil, false, E.New("no available network interface")
 	}
+	defaultInterface := d.networkManager.InterfaceMonitor().DefaultInterface()
 	if fallbackDelay == 0 {
 		fallbackDelay = N.DefaultFallbackDelay
 	}
@@ -103,7 +107,9 @@ func (d *DefaultDialer) dialParallelInterfaceFastFallback(ctx context.Context, d
 	results := make(chan dialResult) // unbuffered
 	startRacer := func(ctx context.Context, primary bool, iif adapter.NetworkInterface) {
 		perNetDialer := dialer
-		perNetDialer.Control = control.Append(perNetDialer.Control, control.BindToInterface(nil, iif.Name, iif.Index))
+		if defaultInterface == nil || iif.Index != defaultInterface.Index {
+			perNetDialer.Control = control.Append(perNetDialer.Control, control.BindToInterface(nil, iif.Name, iif.Index))
+		}
 		conn, err := perNetDialer.DialContext(ctx, network, addr)
 		if err != nil {
 			select {
@@ -149,10 +155,13 @@ func (d *DefaultDialer) listenSerialInterfacePacket(ctx context.Context, listene
 	if len(primaryInterfaces)+len(fallbackInterfaces) == 0 {
 		return nil, E.New("no available network interface")
 	}
+	defaultInterface := d.networkManager.InterfaceMonitor().DefaultInterface()
 	var errors []error
 	for _, primaryInterface := range primaryInterfaces {
 		perNetListener := listener
-		perNetListener.Control = control.Append(perNetListener.Control, control.BindToInterface(nil, primaryInterface.Name, primaryInterface.Index))
+		if defaultInterface == nil || primaryInterface.Index != defaultInterface.Index {
+			perNetListener.Control = control.Append(perNetListener.Control, control.BindToInterface(nil, primaryInterface.Name, primaryInterface.Index))
+		}
 		conn, err := perNetListener.ListenPacket(ctx, network, addr)
 		if err == nil {
 			return conn, nil
@@ -161,7 +170,9 @@ func (d *DefaultDialer) listenSerialInterfacePacket(ctx context.Context, listene
 	}
 	for _, fallbackInterface := range fallbackInterfaces {
 		perNetListener := listener
-		perNetListener.Control = control.Append(perNetListener.Control, control.BindToInterface(nil, fallbackInterface.Name, fallbackInterface.Index))
+		if defaultInterface == nil || fallbackInterface.Index != defaultInterface.Index {
+			perNetListener.Control = control.Append(perNetListener.Control, control.BindToInterface(nil, fallbackInterface.Name, fallbackInterface.Index))
+		}
 		conn, err := perNetListener.ListenPacket(ctx, network, addr)
 		if err == nil {
 			return conn, nil

common/dialer/detour.go

@@ -29,18 +29,16 @@ func (d *DetourDialer) Start() error {
 }
 
 func (d *DetourDialer) Dialer() (N.Dialer, error) {
-	d.initOnce.Do(d.init)
+	d.initOnce.Do(func() {
+		var loaded bool
+		d.dialer, loaded = d.outboundManager.Outbound(d.detour)
+		if !loaded {
+			d.initErr = E.New("outbound detour not found: ", d.detour)
+		}
+	})
 	return d.dialer, d.initErr
 }
 
-func (d *DetourDialer) init() {
-	var loaded bool
-	d.dialer, loaded = d.outboundManager.Outbound(d.detour)
-	if !loaded {
-		d.initErr = E.New("outbound detour not found: ", d.detour)
-	}
-}
-
 func (d *DetourDialer) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
 	dialer, err := d.Dialer()
 	if err != nil {

common/dialer/dialer.go

@@ -8,113 +8,68 @@ import (
 
 	"github.com/sagernet/sing-box/adapter"
 	C "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing-box/experimental/deprecated"
 	"github.com/sagernet/sing-box/option"
+	"github.com/sagernet/sing-dns"
 	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/service"
 )
 
-type Options struct {
-	Context          context.Context
-	Options          option.DialerOptions
-	RemoteIsDomain   bool
-	DirectResolver   bool
-	ResolverOnDetour bool
-}
-
-// TODO: merge with NewWithOptions
-func New(ctx context.Context, options option.DialerOptions, remoteIsDomain bool) (N.Dialer, error) {
-	return NewWithOptions(Options{
-		Context:        ctx,
-		Options:        options,
-		RemoteIsDomain: remoteIsDomain,
-	})
-}
-
-func NewWithOptions(options Options) (N.Dialer, error) {
-	dialOptions := options.Options
+func New(ctx context.Context, options option.DialerOptions) (N.Dialer, error) {
+	if options.IsWireGuardListener {
+		return NewDefault(ctx, options)
+	}
 	var (
 		dialer N.Dialer
 		err    error
 	)
-	if dialOptions.Detour != "" {
-		outboundManager := service.FromContext[adapter.OutboundManager](options.Context)
-		if outboundManager == nil {
-			return nil, E.New("missing outbound manager")
-		}
-		dialer = NewDetour(outboundManager, dialOptions.Detour)
-	} else {
-		dialer, err = NewDefault(options.Context, dialOptions)
+	if options.Detour == "" {
+		dialer, err = NewDefault(ctx, options)
 		if err != nil {
 			return nil, err
 		}
+	} else {
+		outboundManager := service.FromContext[adapter.OutboundManager](ctx)
+		if outboundManager == nil {
+			return nil, E.New("missing outbound manager")
+		}
+		dialer = NewDetour(outboundManager, options.Detour)
 	}
-	if options.RemoteIsDomain && (dialOptions.Detour == "" || options.ResolverOnDetour) {
-		networkManager := service.FromContext[adapter.NetworkManager](options.Context)
-		dnsTransport := service.FromContext[adapter.DNSTransportManager](options.Context)
-		var defaultOptions adapter.NetworkOptions
-		if networkManager != nil {
-			defaultOptions = networkManager.DefaultOptions()
+	if options.Detour == "" {
+		router := service.FromContext[adapter.Router](ctx)
+		if router != nil {
+			dialer = NewResolveDialer(
+				router,
+				dialer,
+				options.Detour == "" && !options.TCPFastOpen,
+				dns.DomainStrategy(options.DomainStrategy),
+				time.Duration(options.FallbackDelay))
 		}
-		var (
-			server               string
-			dnsQueryOptions      adapter.DNSQueryOptions
-			resolveFallbackDelay time.Duration
-		)
-		if dialOptions.DomainResolver != nil && dialOptions.DomainResolver.Server != "" {
-			var transport adapter.DNSTransport
-			if !options.DirectResolver {
-				var loaded bool
-				transport, loaded = dnsTransport.Transport(dialOptions.DomainResolver.Server)
-				if !loaded {
-					return nil, E.New("domain resolver not found: " + dialOptions.DomainResolver.Server)
-				}
-			}
-			var strategy C.DomainStrategy
-			if dialOptions.DomainResolver.Strategy != option.DomainStrategy(C.DomainStrategyAsIS) {
-				strategy = C.DomainStrategy(dialOptions.DomainResolver.Strategy)
-			} else if
-			//nolint:staticcheck
-			dialOptions.DomainStrategy != option.DomainStrategy(C.DomainStrategyAsIS) {
-				//nolint:staticcheck
-				strategy = C.DomainStrategy(dialOptions.DomainStrategy)
-			}
-			server = dialOptions.DomainResolver.Server
-			dnsQueryOptions = adapter.DNSQueryOptions{
-				Transport:    transport,
-				Strategy:     strategy,
-				DisableCache: dialOptions.DomainResolver.DisableCache,
-				RewriteTTL:   dialOptions.DomainResolver.RewriteTTL,
-				ClientSubnet: dialOptions.DomainResolver.ClientSubnet.Build(netip.Prefix{}),
-			}
-			resolveFallbackDelay = time.Duration(dialOptions.FallbackDelay)
-		} else if options.DirectResolver {
-			return nil, E.New("missing domain resolver for domain server address")
-		} else if defaultOptions.DomainResolver != "" {
-			dnsQueryOptions = defaultOptions.DomainResolveOptions
-			transport, loaded := dnsTransport.Transport(defaultOptions.DomainResolver)
-			if !loaded {
-				return nil, E.New("default domain resolver not found: " + defaultOptions.DomainResolver)
-			}
-			dnsQueryOptions.Transport = transport
-			resolveFallbackDelay = time.Duration(dialOptions.FallbackDelay)
-		} else {
-			deprecated.Report(options.Context, deprecated.OptionMissingDomainResolver)
-		}
-		dialer = NewResolveDialer(
-			options.Context,
-			dialer,
-			dialOptions.Detour == "" && !dialOptions.TCPFastOpen,
-			server,
-			dnsQueryOptions,
-			resolveFallbackDelay,
-		)
 	}
 	return dialer, nil
 }
 
+func NewDirect(ctx context.Context, options option.DialerOptions) (ParallelInterfaceDialer, error) {
+	if options.Detour != "" {
+		return nil, E.New("`detour` is not supported in direct context")
+	}
+	if options.IsWireGuardListener {
+		return NewDefault(ctx, options)
+	}
+	dialer, err := NewDefault(ctx, options)
+	if err != nil {
+		return nil, err
+	}
+	return NewResolveParallelInterfaceDialer(
+		service.FromContext[adapter.Router](ctx),
+		dialer,
+		true,
+		dns.DomainStrategy(options.DomainStrategy),
+		time.Duration(options.FallbackDelay),
+	), nil
+}
+
 type ParallelInterfaceDialer interface {
 	N.Dialer
 	DialParallelInterface(ctx context.Context, network string, destination M.Socksaddr, strategy *C.NetworkStrategy, interfaceType []C.InterfaceType, fallbackInterfaceType []C.InterfaceType, fallbackDelay time.Duration) (net.Conn, error)

common/dialer/resolve.go

@@ -3,17 +3,16 @@ package dialer
 import (
 	"context"
 	"net"
-	"sync"
+	"net/netip"
 	"time"
 
 	"github.com/sagernet/sing-box/adapter"
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/log"
+	"github.com/sagernet/sing-dns"
 	"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/service"
 )
 
 var (
@@ -21,37 +20,21 @@ var (
 	_ ParallelInterfaceDialer = (*resolveParallelNetworkDialer)(nil)
 )
 
-type ResolveDialer interface {
-	N.Dialer
-	QueryOptions() adapter.DNSQueryOptions
-}
-
-type ParallelInterfaceResolveDialer interface {
-	ParallelInterfaceDialer
-	QueryOptions() adapter.DNSQueryOptions
-}
-
 type resolveDialer struct {
-	transport     adapter.DNSTransportManager
-	router        adapter.DNSRouter
 	dialer        N.Dialer
 	parallel      bool
-	server        string
-	initOnce      sync.Once
-	initErr       error
-	queryOptions  adapter.DNSQueryOptions
+	router        adapter.Router
+	strategy      dns.DomainStrategy
 	fallbackDelay time.Duration
 }
 
-func NewResolveDialer(ctx context.Context, dialer N.Dialer, parallel bool, server string, queryOptions adapter.DNSQueryOptions, fallbackDelay time.Duration) ResolveDialer {
+func NewResolveDialer(router adapter.Router, dialer N.Dialer, parallel bool, strategy dns.DomainStrategy, fallbackDelay time.Duration) N.Dialer {
 	return &resolveDialer{
-		transport:     service.FromContext[adapter.DNSTransportManager](ctx),
-		router:        service.FromContext[adapter.DNSRouter](ctx),
-		dialer:        dialer,
-		parallel:      parallel,
-		server:        server,
-		queryOptions:  queryOptions,
-		fallbackDelay: fallbackDelay,
+		dialer,
+		parallel,
+		router,
+		strategy,
+		fallbackDelay,
 	}
 }
 
@@ -60,68 +43,59 @@ type resolveParallelNetworkDialer struct {
 	dialer ParallelInterfaceDialer
 }
 
-func NewResolveParallelInterfaceDialer(ctx context.Context, dialer ParallelInterfaceDialer, parallel bool, server string, queryOptions adapter.DNSQueryOptions, fallbackDelay time.Duration) ParallelInterfaceResolveDialer {
+func NewResolveParallelInterfaceDialer(router adapter.Router, dialer ParallelInterfaceDialer, parallel bool, strategy dns.DomainStrategy, fallbackDelay time.Duration) ParallelInterfaceDialer {
 	return &resolveParallelNetworkDialer{
 		resolveDialer{
-			transport:     service.FromContext[adapter.DNSTransportManager](ctx),
-			router:        service.FromContext[adapter.DNSRouter](ctx),
-			dialer:        dialer,
-			parallel:      parallel,
-			server:        server,
-			queryOptions:  queryOptions,
-			fallbackDelay: fallbackDelay,
+			dialer,
+			parallel,
+			router,
+			strategy,
+			fallbackDelay,
 		},
 		dialer,
 	}
 }
 
-func (d *resolveDialer) initialize() error {
-	d.initOnce.Do(d.initServer)
-	return d.initErr
-}
-
-func (d *resolveDialer) initServer() {
-	if d.server == "" {
-		return
-	}
-	transport, loaded := d.transport.Transport(d.server)
-	if !loaded {
-		d.initErr = E.New("domain resolver not found: " + d.server)
-		return
-	}
-	d.queryOptions.Transport = transport
-}
-
 func (d *resolveDialer) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
-	err := d.initialize()
-	if err != nil {
-		return nil, err
-	}
 	if !destination.IsFqdn() {
 		return d.dialer.DialContext(ctx, network, destination)
 	}
+	ctx, metadata := adapter.ExtendContext(ctx)
 	ctx = log.ContextWithOverrideLevel(ctx, log.LevelDebug)
-	addresses, err := d.router.Lookup(ctx, destination.Fqdn, d.queryOptions)
+	metadata.Destination = destination
+	metadata.Domain = ""
+	var addresses []netip.Addr
+	var err error
+	if d.strategy == dns.DomainStrategyAsIS {
+		addresses, err = d.router.LookupDefault(ctx, destination.Fqdn)
+	} else {
+		addresses, err = d.router.Lookup(ctx, destination.Fqdn, d.strategy)
+	}
 	if err != nil {
 		return nil, err
 	}
 	if d.parallel {
-		return N.DialParallel(ctx, d.dialer, network, destination, addresses, d.queryOptions.Strategy == C.DomainStrategyPreferIPv6, d.fallbackDelay)
+		return N.DialParallel(ctx, d.dialer, network, destination, addresses, d.strategy == dns.DomainStrategyPreferIPv6, d.fallbackDelay)
 	} else {
 		return N.DialSerial(ctx, d.dialer, network, destination, addresses)
 	}
 }
 
 func (d *resolveDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
-	err := d.initialize()
-	if err != nil {
-		return nil, err
-	}
 	if !destination.IsFqdn() {
 		return d.dialer.ListenPacket(ctx, destination)
 	}
+	ctx, metadata := adapter.ExtendContext(ctx)
 	ctx = log.ContextWithOverrideLevel(ctx, log.LevelDebug)
-	addresses, err := d.router.Lookup(ctx, destination.Fqdn, d.queryOptions)
+	metadata.Destination = destination
+	metadata.Domain = ""
+	var addresses []netip.Addr
+	var err error
+	if d.strategy == dns.DomainStrategyAsIS {
+		addresses, err = d.router.LookupDefault(ctx, destination.Fqdn)
+	} else {
+		addresses, err = d.router.Lookup(ctx, destination.Fqdn, d.strategy)
+	}
 	if err != nil {
 		return nil, err
 	}
@@ -132,24 +106,21 @@ func (d *resolveDialer) ListenPacket(ctx context.Context, destination M.Socksadd
 	return bufio.NewNATPacketConn(bufio.NewPacketConn(conn), M.SocksaddrFrom(destinationAddress, destination.Port), destination), nil
 }
 
-func (d *resolveDialer) QueryOptions() adapter.DNSQueryOptions {
-	return d.queryOptions
-}
-
-func (d *resolveDialer) Upstream() any {
-	return d.dialer
-}
-
 func (d *resolveParallelNetworkDialer) DialParallelInterface(ctx context.Context, network string, destination M.Socksaddr, strategy *C.NetworkStrategy, interfaceType []C.InterfaceType, fallbackInterfaceType []C.InterfaceType, fallbackDelay time.Duration) (net.Conn, error) {
-	err := d.initialize()
-	if err != nil {
-		return nil, err
-	}
 	if !destination.IsFqdn() {
 		return d.dialer.DialContext(ctx, network, destination)
 	}
+	ctx, metadata := adapter.ExtendContext(ctx)
 	ctx = log.ContextWithOverrideLevel(ctx, log.LevelDebug)
-	addresses, err := d.router.Lookup(ctx, destination.Fqdn, d.queryOptions)
+	metadata.Destination = destination
+	metadata.Domain = ""
+	var addresses []netip.Addr
+	var err error
+	if d.strategy == dns.DomainStrategyAsIS {
+		addresses, err = d.router.LookupDefault(ctx, destination.Fqdn)
+	} else {
+		addresses, err = d.router.Lookup(ctx, destination.Fqdn, d.strategy)
+	}
 	if err != nil {
 		return nil, err
 	}
@@ -157,28 +128,30 @@ func (d *resolveParallelNetworkDialer) DialParallelInterface(ctx context.Context
 		fallbackDelay = d.fallbackDelay
 	}
 	if d.parallel {
-		return DialParallelNetwork(ctx, d.dialer, network, destination, addresses, d.queryOptions.Strategy == C.DomainStrategyPreferIPv6, strategy, interfaceType, fallbackInterfaceType, fallbackDelay)
+		return DialParallelNetwork(ctx, d.dialer, network, destination, addresses, d.strategy == dns.DomainStrategyPreferIPv6, strategy, interfaceType, fallbackInterfaceType, fallbackDelay)
 	} else {
 		return DialSerialNetwork(ctx, d.dialer, network, destination, addresses, strategy, interfaceType, fallbackInterfaceType, fallbackDelay)
 	}
 }
 
 func (d *resolveParallelNetworkDialer) ListenSerialInterfacePacket(ctx context.Context, destination M.Socksaddr, strategy *C.NetworkStrategy, interfaceType []C.InterfaceType, fallbackInterfaceType []C.InterfaceType, fallbackDelay time.Duration) (net.PacketConn, error) {
-	err := d.initialize()
-	if err != nil {
-		return nil, err
-	}
 	if !destination.IsFqdn() {
 		return d.dialer.ListenPacket(ctx, destination)
 	}
+	ctx, metadata := adapter.ExtendContext(ctx)
 	ctx = log.ContextWithOverrideLevel(ctx, log.LevelDebug)
-	addresses, err := d.router.Lookup(ctx, destination.Fqdn, d.queryOptions)
+	metadata.Destination = destination
+	metadata.Domain = ""
+	var addresses []netip.Addr
+	var err error
+	if d.strategy == dns.DomainStrategyAsIS {
+		addresses, err = d.router.LookupDefault(ctx, destination.Fqdn)
+	} else {
+		addresses, err = d.router.Lookup(ctx, destination.Fqdn, d.strategy)
+	}
 	if err != nil {
 		return nil, err
 	}
-	if fallbackDelay == 0 {
-		fallbackDelay = d.fallbackDelay
-	}
 	conn, destinationAddress, err := ListenSerialNetworkPacket(ctx, d.dialer, destination, addresses, strategy, interfaceType, fallbackInterfaceType, fallbackDelay)
 	if err != nil {
 		return nil, err
@@ -186,10 +159,6 @@ func (d *resolveParallelNetworkDialer) ListenSerialInterfacePacket(ctx context.C
 	return bufio.NewNATPacketConn(bufio.NewPacketConn(conn), M.SocksaddrFrom(destinationAddress, destination.Port), destination), nil
 }
 
-func (d *resolveParallelNetworkDialer) QueryOptions() adapter.DNSQueryOptions {
-	return d.queryOptions
-}
-
-func (d *resolveParallelNetworkDialer) Upstream() any {
+func (d *resolveDialer) Upstream() any {
 	return d.dialer
 }

common/dialer/router.go

@@ -7,27 +7,24 @@ import (
 	"github.com/sagernet/sing-box/adapter"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
-	"github.com/sagernet/sing/service"
 )
 
 type DefaultOutboundDialer struct {
-	outbound adapter.OutboundManager
+	outboundManager adapter.OutboundManager
 }
 
-func NewDefaultOutbound(ctx context.Context) N.Dialer {
-	return &DefaultOutboundDialer{
-		outbound: service.FromContext[adapter.OutboundManager](ctx),
-	}
+func NewDefaultOutbound(outboundManager adapter.OutboundManager) N.Dialer {
+	return &DefaultOutboundDialer{outboundManager: outboundManager}
 }
 
 func (d *DefaultOutboundDialer) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
-	return d.outbound.Default().DialContext(ctx, network, destination)
+	return d.outboundManager.Default().DialContext(ctx, network, destination)
 }
 
 func (d *DefaultOutboundDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
-	return d.outbound.Default().ListenPacket(ctx, destination)
+	return d.outboundManager.Default().ListenPacket(ctx, destination)
 }
 
 func (d *DefaultOutboundDialer) Upstream() any {
-	return d.outbound.Default()
+	return d.outboundManager.Default()
 }

common/humanize/bytes.go

@@ -1,158 +0,0 @@
-package humanize
-
-import (
-	"fmt"
-	"math"
-	"strconv"
-	"strings"
-	"unicode"
-)
-
-// IEC Sizes.
-// kibis of bits
-const (
-	Byte = 1 << (iota * 10)
-	KiByte
-	MiByte
-	GiByte
-	TiByte
-	PiByte
-	EiByte
-)
-
-// SI Sizes.
-const (
-	IByte = 1
-	KByte = IByte * 1000
-	MByte = KByte * 1000
-	GByte = MByte * 1000
-	TByte = GByte * 1000
-	PByte = TByte * 1000
-	EByte = PByte * 1000
-)
-
-var defaultSizeTable = map[string]uint64{
-	"b":   Byte,
-	"kib": KiByte,
-	"kb":  KByte,
-	"mib": MiByte,
-	"mb":  MByte,
-	"gib": GiByte,
-	"gb":  GByte,
-	"tib": TiByte,
-	"tb":  TByte,
-	"pib": PiByte,
-	"pb":  PByte,
-	"eib": EiByte,
-	"eb":  EByte,
-	// Without suffix
-	"":   Byte,
-	"ki": KiByte,
-	"k":  KByte,
-	"mi": MiByte,
-	"m":  MByte,
-	"gi": GiByte,
-	"g":  GByte,
-	"ti": TiByte,
-	"t":  TByte,
-	"pi": PiByte,
-	"p":  PByte,
-	"ei": EiByte,
-	"e":  EByte,
-}
-
-var memorysSizeTable = map[string]uint64{
-	"b":  Byte,
-	"kb": KiByte,
-	"mb": MiByte,
-	"gb": GiByte,
-	"tb": TiByte,
-	"pb": PiByte,
-	"eb": EiByte,
-	"":   Byte,
-	"k":  KiByte,
-	"m":  MiByte,
-	"g":  GiByte,
-	"t":  TiByte,
-	"p":  PiByte,
-	"e":  EiByte,
-}
-
-var (
-	defaultSizes = []string{"B", "kB", "MB", "GB", "TB", "PB", "EB"}
-	iSizes       = []string{"B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB"}
-)
-
-func Bytes(s uint64) string {
-	return humanateBytes(s, 1000, defaultSizes)
-}
-
-func MemoryBytes(s uint64) string {
-	return humanateBytes(s, 1024, defaultSizes)
-}
-
-func IBytes(s uint64) string {
-	return humanateBytes(s, 1024, iSizes)
-}
-
-func logn(n, b float64) float64 {
-	return math.Log(n) / math.Log(b)
-}
-
-func humanateBytes(s uint64, base float64, sizes []string) string {
-	if s < 10 {
-		return fmt.Sprintf("%d B", s)
-	}
-	e := math.Floor(logn(float64(s), base))
-	suffix := sizes[int(e)]
-	val := math.Floor(float64(s)/math.Pow(base, e)*10+0.5) / 10
-	f := "%.0f %s"
-	if val < 10 {
-		f = "%.1f %s"
-	}
-
-	return fmt.Sprintf(f, val, suffix)
-}
-
-func ParseBytes(s string) (uint64, error) {
-	return parseBytes0(s, defaultSizeTable)
-}
-
-func ParseMemoryBytes(s string) (uint64, error) {
-	return parseBytes0(s, memorysSizeTable)
-}
-
-func parseBytes0(s string, sizeTable map[string]uint64) (uint64, error) {
-	lastDigit := 0
-	hasComma := false
-	for _, r := range s {
-		if !(unicode.IsDigit(r) || r == '.' || r == ',') {
-			break
-		}
-		if r == ',' {
-			hasComma = true
-		}
-		lastDigit++
-	}
-
-	num := s[:lastDigit]
-	if hasComma {
-		num = strings.Replace(num, ",", "", -1)
-	}
-
-	f, err := strconv.ParseFloat(num, 64)
-	if err != nil {
-		return 0, err
-	}
-
-	extra := strings.ToLower(strings.TrimSpace(s[lastDigit:]))
-	if m, ok := sizeTable[extra]; ok {
-		f *= float64(m)
-		if f >= math.MaxUint64 {
-			return 0, fmt.Errorf("too large: %v", s)
-		}
-		return uint64(f), nil
-	}
-
-	return 0, fmt.Errorf("unhandled size name: %v", extra)
-}

common/process/searcher.go

@@ -23,7 +23,6 @@ type Config struct {
 }
 
 type Info struct {
-	ProcessID   uint32
 	ProcessPath string
 	PackageName string
 	User        string

common/process/searcher_windows.go

@@ -2,11 +2,14 @@ package process
 
 import (
 	"context"
+	"fmt"
 	"net/netip"
+	"os"
 	"syscall"
+	"unsafe"
 
 	E "github.com/sagernet/sing/common/exceptions"
-	"github.com/sagernet/sing/common/winiphlpapi"
+	N "github.com/sagernet/sing/common/network"
 
 	"golang.org/x/sys/windows"
 )
@@ -23,39 +26,201 @@ func NewSearcher(_ Config) (Searcher, error) {
 	return &windowsSearcher{}, nil
 }
 
+var (
+	modiphlpapi                    = windows.NewLazySystemDLL("iphlpapi.dll")
+	procGetExtendedTcpTable        = modiphlpapi.NewProc("GetExtendedTcpTable")
+	procGetExtendedUdpTable        = modiphlpapi.NewProc("GetExtendedUdpTable")
+	modkernel32                    = windows.NewLazySystemDLL("kernel32.dll")
+	procQueryFullProcessImageNameW = modkernel32.NewProc("QueryFullProcessImageNameW")
+)
+
 func initWin32API() error {
-	return winiphlpapi.LoadExtendedTable()
+	err := modiphlpapi.Load()
+	if err != nil {
+		return E.Cause(err, "load iphlpapi.dll")
+	}
+
+	err = procGetExtendedTcpTable.Find()
+	if err != nil {
+		return E.Cause(err, "load iphlpapi::GetExtendedTcpTable")
+	}
+
+	err = procGetExtendedUdpTable.Find()
+	if err != nil {
+		return E.Cause(err, "load iphlpapi::GetExtendedUdpTable")
+	}
+
+	err = modkernel32.Load()
+	if err != nil {
+		return E.Cause(err, "load kernel32.dll")
+	}
+
+	err = procQueryFullProcessImageNameW.Find()
+	if err != nil {
+		return E.Cause(err, "load kernel32::QueryFullProcessImageNameW")
+	}
+
+	return nil
 }
 
 func (s *windowsSearcher) FindProcessInfo(ctx context.Context, network string, source netip.AddrPort, destination netip.AddrPort) (*Info, error) {
-	pid, err := winiphlpapi.FindPid(network, source)
+	processName, err := findProcessName(network, source.Addr(), int(source.Port()))
 	if err != nil {
 		return nil, err
 	}
-	path, err := getProcessPath(pid)
-	if err != nil {
-		return &Info{ProcessID: pid, UserId: -1}, err
-	}
-	return &Info{ProcessID: pid, ProcessPath: path, UserId: -1}, nil
+	return &Info{ProcessPath: processName, UserId: -1}, nil
 }
 
-func getProcessPath(pid uint32) (string, error) {
+func findProcessName(network string, ip netip.Addr, srcPort int) (string, error) {
+	family := windows.AF_INET
+	if ip.Is6() {
+		family = windows.AF_INET6
+	}
+
+	const (
+		tcpTablePidConn = 4
+		udpTablePid     = 1
+	)
+
+	var class int
+	var fn uintptr
+	switch network {
+	case N.NetworkTCP:
+		fn = procGetExtendedTcpTable.Addr()
+		class = tcpTablePidConn
+	case N.NetworkUDP:
+		fn = procGetExtendedUdpTable.Addr()
+		class = udpTablePid
+	default:
+		return "", os.ErrInvalid
+	}
+
+	buf, err := getTransportTable(fn, family, class)
+	if err != nil {
+		return "", err
+	}
+
+	s := newSearcher(family == windows.AF_INET, network == N.NetworkTCP)
+
+	pid, err := s.Search(buf, ip, uint16(srcPort))
+	if err != nil {
+		return "", err
+	}
+	return getExecPathFromPID(pid)
+}
+
+type searcher struct {
+	itemSize int
+	port     int
+	ip       int
+	ipSize   int
+	pid      int
+	tcpState int
+}
+
+func (s *searcher) Search(b []byte, ip netip.Addr, port uint16) (uint32, error) {
+	n := int(readNativeUint32(b[:4]))
+	itemSize := s.itemSize
+	for i := 0; i < n; i++ {
+		row := b[4+itemSize*i : 4+itemSize*(i+1)]
+
+		// according to MSDN, only the lower 16 bits of dwLocalPort are used and the port number is in network endian.
+		// this field can be illustrated as follows depends on different machine endianess:
+		//     little endian: [ MSB LSB  0   0  ]   interpret as native uint32 is ((LSB<<8)|MSB)
+		//       big  endian: [  0   0  MSB LSB ]   interpret as native uint32 is ((MSB<<8)|LSB)
+		// so we need an syscall.Ntohs on the lower 16 bits after read the port as native uint32
+		srcPort := syscall.Ntohs(uint16(readNativeUint32(row[s.port : s.port+4])))
+		if srcPort != port {
+			continue
+		}
+
+		srcIP, _ := netip.AddrFromSlice(row[s.ip : s.ip+s.ipSize])
+		// windows binds an unbound udp socket to 0.0.0.0/[::] while first sendto
+		if ip != srcIP && (!srcIP.IsUnspecified()) {
+			continue
+		}
+
+		pid := readNativeUint32(row[s.pid : s.pid+4])
+		return pid, nil
+	}
+	return 0, ErrNotFound
+}
+
+func newSearcher(isV4, isTCP bool) *searcher {
+	var itemSize, port, ip, ipSize, pid int
+	tcpState := -1
+	switch {
+	case isV4 && isTCP:
+		// struct MIB_TCPROW_OWNER_PID
+		itemSize, port, ip, ipSize, pid, tcpState = 24, 8, 4, 4, 20, 0
+	case isV4 && !isTCP:
+		// struct MIB_UDPROW_OWNER_PID
+		itemSize, port, ip, ipSize, pid = 12, 4, 0, 4, 8
+	case !isV4 && isTCP:
+		// struct MIB_TCP6ROW_OWNER_PID
+		itemSize, port, ip, ipSize, pid, tcpState = 56, 20, 0, 16, 52, 48
+	case !isV4 && !isTCP:
+		// struct MIB_UDP6ROW_OWNER_PID
+		itemSize, port, ip, ipSize, pid = 28, 20, 0, 16, 24
+	}
+
+	return &searcher{
+		itemSize: itemSize,
+		port:     port,
+		ip:       ip,
+		ipSize:   ipSize,
+		pid:      pid,
+		tcpState: tcpState,
+	}
+}
+
+func getTransportTable(fn uintptr, family int, class int) ([]byte, error) {
+	for size, buf := uint32(8), make([]byte, 8); ; {
+		ptr := unsafe.Pointer(&buf[0])
+		err, _, _ := syscall.SyscallN(fn, uintptr(ptr), uintptr(unsafe.Pointer(&size)), 0, uintptr(family), uintptr(class), 0)
+
+		switch err {
+		case 0:
+			return buf, nil
+		case uintptr(syscall.ERROR_INSUFFICIENT_BUFFER):
+			buf = make([]byte, size)
+		default:
+			return nil, fmt.Errorf("syscall error: %d", err)
+		}
+	}
+}
+
+func readNativeUint32(b []byte) uint32 {
+	return *(*uint32)(unsafe.Pointer(&b[0]))
+}
+
+func getExecPathFromPID(pid uint32) (string, error) {
+	// kernel process starts with a colon in order to distinguish with normal processes
 	switch pid {
 	case 0:
+		// reserved pid for system idle process
 		return ":System Idle Process", nil
 	case 4:
+		// reserved pid for windows kernel image
 		return ":System", nil
 	}
-	handle, err := windows.OpenProcess(windows.PROCESS_QUERY_LIMITED_INFORMATION, false, pid)
+	h, err := windows.OpenProcess(windows.PROCESS_QUERY_LIMITED_INFORMATION, false, pid)
 	if err != nil {
 		return "", err
 	}
-	defer windows.CloseHandle(handle)
-	size := uint32(syscall.MAX_LONG_PATH)
+	defer windows.CloseHandle(h)
+
 	buf := make([]uint16, syscall.MAX_LONG_PATH)
-	err = windows.QueryFullProcessImageName(handle, 0, &buf[0], &size)
-	if err != nil {
+	size := uint32(len(buf))
+	r1, _, err := syscall.SyscallN(
+		procQueryFullProcessImageNameW.Addr(),
+		uintptr(h),
+		uintptr(0),
+		uintptr(unsafe.Pointer(&buf[0])),
+		uintptr(unsafe.Pointer(&size)),
+	)
+	if r1 == 0 {
 		return "", err
 	}
-	return windows.UTF16ToString(buf[:size]), nil
+	return syscall.UTF16ToString(buf[:size]), nil
 }

common/sniff/bittorrent.go

@@ -9,6 +9,7 @@ import (
 
 	"github.com/sagernet/sing-box/adapter"
 	C "github.com/sagernet/sing-box/constant"
+	E "github.com/sagernet/sing/common/exceptions"
 )
 
 const (
@@ -23,21 +24,26 @@ func BitTorrent(_ context.Context, metadata *adapter.InboundContext, reader io.R
 	var first byte
 	err := binary.Read(reader, binary.BigEndian, &first)
 	if err != nil {
-		return err
+		return E.Cause1(ErrNeedMoreData, err)
 	}
 
 	if first != 19 {
 		return os.ErrInvalid
 	}
 
+	const header = "BitTorrent protocol"
 	var protocol [19]byte
-	_, err = reader.Read(protocol[:])
-	if err != nil {
-		return err
-	}
-	if string(protocol[:]) != "BitTorrent protocol" {
+	var n int
+	n, err = reader.Read(protocol[:])
+	if string(protocol[:n]) != header[:n] {
 		return os.ErrInvalid
 	}
+	if err != nil {
+		return E.Cause1(ErrNeedMoreData, err)
+	}
+	if n < 19 {
+		return ErrNeedMoreData
+	}
 
 	metadata.Protocol = C.ProtocolBitTorrent
 	return nil
@@ -67,7 +73,9 @@ func UTP(_ context.Context, metadata *adapter.InboundContext, packet []byte) err
 		if err != nil {
 			return err
 		}
-
+		if extension > 0x04 {
+			return os.ErrInvalid
+		}
 		var length byte
 		err = binary.Read(reader, binary.BigEndian, &length)
 		if err != nil {

common/sniff/bittorrent_test.go

@@ -32,6 +32,27 @@ func TestSniffBittorrent(t *testing.T) {
 	}
 }
 
+func TestSniffIncompleteBittorrent(t *testing.T) {
+	t.Parallel()
+
+	pkt, err := hex.DecodeString("13426974546f7272656e74")
+	require.NoError(t, err)
+	var metadata adapter.InboundContext
+	err = sniff.BitTorrent(context.TODO(), &metadata, bytes.NewReader(pkt))
+	require.ErrorIs(t, err, sniff.ErrNeedMoreData)
+}
+
+func TestSniffNotBittorrent(t *testing.T) {
+	t.Parallel()
+
+	pkt, err := hex.DecodeString("13426974546f7272656e75")
+	require.NoError(t, err)
+	var metadata adapter.InboundContext
+	err = sniff.BitTorrent(context.TODO(), &metadata, bytes.NewReader(pkt))
+	require.NotEmpty(t, err)
+	require.NotErrorIs(t, err, sniff.ErrNeedMoreData)
+}
+
 func TestSniffUTP(t *testing.T) {
 	t.Parallel()
 
@@ -71,3 +92,19 @@ func TestSniffUDPTracker(t *testing.T) {
 		require.Equal(t, C.ProtocolBitTorrent, metadata.Protocol)
 	}
 }
+
+func TestSniffNotUTP(t *testing.T) {
+	t.Parallel()
+
+	packets := []string{
+		"0102736470696e674958d580121500000000000079aaed6717a39c27b07c0c000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
+	}
+	for _, pkt := range packets {
+		pkt, err := hex.DecodeString(pkt)
+		require.NoError(t, err)
+
+		var metadata adapter.InboundContext
+		err = sniff.UTP(context.TODO(), &metadata, pkt)
+		require.Error(t, err)
+	}
+}

common/sniff/dns.go

@@ -5,14 +5,11 @@ import (
 	"encoding/binary"
 	"io"
 	"os"
-	"time"
 
 	"github.com/sagernet/sing-box/adapter"
 	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"
+	E "github.com/sagernet/sing/common/exceptions"
 
 	mDNS "github.com/miekg/dns"
 )
@@ -21,35 +18,40 @@ func StreamDomainNameQuery(readCtx context.Context, metadata *adapter.InboundCon
 	var length uint16
 	err := binary.Read(reader, binary.BigEndian, &length)
 	if err != nil {
-		return os.ErrInvalid
+		return E.Cause1(ErrNeedMoreData, err)
 	}
-	if length == 0 {
+	if length < 12 {
 		return os.ErrInvalid
 	}
 	buffer := buf.NewSize(int(length))
 	defer buffer.Release()
-	readCtx, cancel := context.WithTimeout(readCtx, time.Millisecond*100)
-	var readTask task.Group
-	readTask.Append0(func(ctx context.Context) error {
-		return common.Error(buffer.ReadFullFrom(reader, buffer.FreeLen()))
-	})
-	err = readTask.Run(readCtx)
-	cancel()
-	if err != nil {
-		return err
+	var n int
+	n, err = buffer.ReadFullFrom(reader, buffer.FreeLen())
+	packet := buffer.Bytes()
+	if n > 2 && packet[2]&0x80 != 0 { // QR
+		return os.ErrInvalid
 	}
-	return DomainNameQuery(readCtx, metadata, buffer.Bytes())
+	if n > 5 && packet[4] == 0 && packet[5] == 0 { // QDCOUNT
+		return os.ErrInvalid
+	}
+	for i := 6; i < 10; i++ {
+		// ANCOUNT, NSCOUNT
+		if n > i && packet[i] != 0 {
+			return os.ErrInvalid
+		}
+	}
+	if err != nil {
+		return E.Cause1(ErrNeedMoreData, err)
+	}
+	return DomainNameQuery(readCtx, metadata, packet)
 }
 
 func DomainNameQuery(ctx context.Context, metadata *adapter.InboundContext, packet []byte) error {
 	var msg mDNS.Msg
 	err := msg.Unpack(packet)
-	if err != nil {
+	if err != nil || msg.Response || len(msg.Question) == 0 || len(msg.Answer) > 0 || len(msg.Ns) > 0 {
 		return err
 	}
-	if len(msg.Question) == 0 || msg.Question[0].Qclass != mDNS.ClassINET || !M.IsDomainName(msg.Question[0].Name) {
-		return os.ErrInvalid
-	}
 	metadata.Protocol = C.ProtocolDNS
 	return nil
 }

common/sniff/dns_test.go

@@ -0,0 +1,53 @@
+package sniff_test
+
+import (
+	"bytes"
+	"context"
+	"encoding/hex"
+	"testing"
+
+	"github.com/sagernet/sing-box/adapter"
+	"github.com/sagernet/sing-box/common/sniff"
+	C "github.com/sagernet/sing-box/constant"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestSniffDNS(t *testing.T) {
+	t.Parallel()
+	query, err := hex.DecodeString("740701000001000000000000012a06676f6f676c6503636f6d0000010001")
+	require.NoError(t, err)
+	var metadata adapter.InboundContext
+	err = sniff.DomainNameQuery(context.TODO(), &metadata, query)
+	require.NoError(t, err)
+	require.Equal(t, C.ProtocolDNS, metadata.Protocol)
+}
+
+func TestSniffStreamDNS(t *testing.T) {
+	t.Parallel()
+	query, err := hex.DecodeString("001e740701000001000000000000012a06676f6f676c6503636f6d0000010001")
+	require.NoError(t, err)
+	var metadata adapter.InboundContext
+	err = sniff.StreamDomainNameQuery(context.TODO(), &metadata, bytes.NewReader(query))
+	require.NoError(t, err)
+	require.Equal(t, C.ProtocolDNS, metadata.Protocol)
+}
+
+func TestSniffIncompleteStreamDNS(t *testing.T) {
+	t.Parallel()
+	query, err := hex.DecodeString("001e740701000001000000000000")
+	require.NoError(t, err)
+	var metadata adapter.InboundContext
+	err = sniff.StreamDomainNameQuery(context.TODO(), &metadata, bytes.NewReader(query))
+	require.ErrorIs(t, err, sniff.ErrNeedMoreData)
+}
+
+func TestSniffNotStreamDNS(t *testing.T) {
+	t.Parallel()
+	query, err := hex.DecodeString("001e740701000000000000000000")
+	require.NoError(t, err)
+	var metadata adapter.InboundContext
+	err = sniff.StreamDomainNameQuery(context.TODO(), &metadata, bytes.NewReader(query))
+	require.NotEmpty(t, err)
+	require.NotErrorIs(t, err, sniff.ErrNeedMoreData)
+}

common/sniff/http.go

@@ -3,10 +3,12 @@ package sniff
 import (
 	std_bufio "bufio"
 	"context"
+	"errors"
 	"io"
 
 	"github.com/sagernet/sing-box/adapter"
 	C "github.com/sagernet/sing-box/constant"
+	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
 	"github.com/sagernet/sing/protocol/http"
 )
@@ -14,10 +16,13 @@ import (
 func HTTPHost(_ context.Context, metadata *adapter.InboundContext, reader io.Reader) error {
 	request, err := http.ReadRequest(std_bufio.NewReader(reader))
 	if err != nil {
-		return err
+		if errors.Is(err, io.ErrUnexpectedEOF) {
+			return E.Cause1(ErrNeedMoreData, err)
+		} else {
+			return err
+		}
 	}
 	metadata.Protocol = C.ProtocolHTTP
 	metadata.Domain = M.ParseSocksaddr(request.Host).AddrString()
-	metadata.HTTPRequest = request
 	return nil
 }

common/sniff/quic.go

@@ -20,8 +20,6 @@ import (
 	"golang.org/x/crypto/hkdf"
 )
 
-var ErrClientHelloFragmented = E.New("need more packet for chromium QUIC connection")
-
 func QUICClientHello(ctx context.Context, metadata *adapter.InboundContext, packet []byte) error {
 	reader := bytes.NewReader(packet)
 	typeByte, err := reader.ReadByte()
@@ -308,7 +306,7 @@ find:
 		metadata.Protocol = C.ProtocolQUIC
 		metadata.Client = C.ClientChromium
 		metadata.SniffContext = fragments
-		return ErrClientHelloFragmented
+		return E.Cause1(ErrNeedMoreData, err)
 	}
 	metadata.Domain = fingerprint.ServerName
 	for metadata.Client == "" {

common/sniff/quic_test.go

@@ -12,6 +12,26 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
+func TestSniffQUICChromeNew(t *testing.T) {
+	t.Parallel()
+	pkt, err := hex.DecodeString("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")
+	require.NoError(t, err)
+	var metadata adapter.InboundContext
+	err = sniff.QUICClientHello(context.Background(), &metadata, pkt)
+	require.Equal(t, metadata.Protocol, C.ProtocolQUIC)
+	require.Equal(t, metadata.Client, C.ClientChromium)
+	require.ErrorIs(t, err, sniff.ErrNeedMoreData)
+	pkt, err = hex.DecodeString("cc0000000108e241a0c601413b4f004046006d8f15dae9999edf39d58df6762822b9a2ab996d7f6a10044338af3b51b1814bc4ac0fa5a87c34c6ae604af8cabc5957c5240174deefc8e378719ffdab2ae4e15bf4514bea44894b626c685cd5d5c965f7e97b3a1bdc520b75813e747f37a3ae83ad38b9ca2acb0de4fc9424839a50c8fb815a62b498609fbbc59145698860e0509cc08a04d1b119daef844ba2f09c16e2665e5cc0b47624b71f7b950c54fd56b4a1fbb826cba44eeeee3949ced8f5de60d4c81b19ee59f75aa1abb33f22c6b13c27095eb1e99cff01fdc93e6e88da2622ee18c08a79f508befd7e33e99bca60e64bef9a47b764384bd93823daeeb6fcb4d7cfbc4ab53eff59b3636f6dcaaf229b5a94941b5712807166b9bd5e82cb4a9708a71451c4cd6f6e33fb2fe40c8c70dd51a30b37ff9c5e35783debde0093fde19ce074b4887b3c90980b107b9c0f32cf61a66f37c251b789abc4d27fc421207966846c8cc7faa42d9af6ad355a6bc94cb78223b612be8b3e2a4df61fee83a674a0ceb8b7c3a29b97102cda22fecdf6a4628e5b612bc17eab64d6f75feedd0b106c0419e484e66725759964cb5935ac5125e5ae920cd280bd40df57c1d7ae1845700bd4eb7b7ab12bc0850950bfe6e69edd6ac1daa5db2c2b07484327196e561c513462d72872dc6771c39f6b60d46a1f2c92343b7338450a0ef8e39f97fa70652b3a12cd04043698951627aaaa82cc95e76df92021d30e8014c984f12eea0143de8b17e5e4a36ec07bf4814251b391f168a59ef75afcd2319249aaba930f06bb7a11b9491e6f71b3d5774a6503a965e94edd0a67737282fc9cb0271779ff14151b7aa9267bb8f7d643185512515aeea513c0c98bfae782381a3317064195d8825cf8b25c17cdab5fced02612a3f2870e40df57e6ca3f08228a2b04e8de1425eb4b970118f9bbdc212223ff86a5d6b648cdf2366722f21de4b14a1014879eadb69215cdb1aa2a9f4f310ecfe3116214fe3ab0a23f4775a0a54b48d7dfd8f7283ed687b3ac7e1a7e42a0bdc3478aba8651c03e1e9cc9df17d106b8130afe854269b0103b7a696f452721887b19d8181830073c9f10684c65f96d3a6c6efbae044eec03d6399e001fa44d54635dc72f9b8ea6b87d0f452cad1e1e32273e2b47c40f2730235adcae8523b8282f86b8cf1ab63ae54aaa06130df3bbf6ecac7d7d1d43d2a87aea837267ff8ccfaa4b7e47b7ded909e6603d0b928a304f8915c839153598adc4178eb48bc0e98ad7793d7980275e1e491ba4847a4a04ae30fe7f5cc7d4b6f4f63a525e9964d72245860ca76a668a4654adb6619f16e9db79131e5675b93cafb96c92f1da8464d4fef2a22e7f9db695965fe2cc27ea30974629c8fe17cfa2f860179e1eb9faaa88a91ec9ce6da28c1a2894c3b932b5e1c807146718cc77ca13c61eaae00c7c99e019f599772064b198c5c2c5e863336367673630b417ac845ddb7c93b0856317e5d64bab208c5730abc2c63536784fbeaaec139dffc917e775715f1e42164ddef5138d4d163609ab3fbdcab968f8738385c0e7e34ff3cf7771a1dc5ba25a8850fdf96dabafa21f9065f307457ce9af4b7a73450c9d20a3b46fa8d3a1163d22bd01a7d17f0ec274181bf9640fa941427694bfeb1346089f7a851efe0fbb7a2041fa6bb6541ccbad77dd3e1a97999fc05f1fef070e7b5c4b385b8b2a8cc32483fdeba6a373970de2fa4139ba18e5916f949aab0aab2894")
+	require.NoError(t, err)
+	err = sniff.QUICClientHello(context.Background(), &metadata, pkt)
+	require.ErrorIs(t, err, sniff.ErrNeedMoreData)
+	pkt, err = hex.DecodeString("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")
+	require.NoError(t, err)
+	err = sniff.QUICClientHello(context.Background(), &metadata, pkt)
+	require.NoError(t, err)
+	require.Equal(t, "www.google.com", metadata.Domain)
+}
+
 func TestSniffQUICChromium(t *testing.T) {
 	t.Parallel()
 	pkt, err := hex.DecodeString("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")
@@ -20,7 +40,7 @@ func TestSniffQUICChromium(t *testing.T) {
 	err = sniff.QUICClientHello(context.Background(), &metadata, pkt)
 	require.Equal(t, metadata.Protocol, C.ProtocolQUIC)
 	require.Equal(t, metadata.Client, C.ClientChromium)
-	require.ErrorIs(t, err, sniff.ErrClientHelloFragmented)
+	require.ErrorIs(t, err, sniff.ErrNeedMoreData)
 	pkt, err = hex.DecodeString("c90000000108f40d654cc09b27f5000044d073eb38807026d4088455e650e7ccf750d01a72f15f9bfc8ff40d223499db1a485cff14dbd45b9be118172834dc35dca3cf62f61a1266f40b92faf3d28d67a466cfdca678ddced15cd606d31959cf441828467857b226d1a241847c82c57312cefe68ba5042d929919bcd4403b39e5699fe87dda05df1b3801e048edee792458e9b1a9b1d4039df05847bcee3be567494b5876e3bd4c3220fe9dfdb2c07d77410f907f744251ef15536cc03b267d3668d5b75bc1ad2fe735cd3bb73519dd9f1625a49e17ad27bdeccf706c83b5ea339a0a05dd0072f4a8f162bd29926b4997f05613c6e4b0270b0c02805ca0543f27c1ff8505a5750bdd33529ee73c491050a10c6903f53c1121dbe0380e84c007c8df74a1b02443ed80ba7766aef5549e618d4fd249844ee28565142005369869299e8c3035ecef3d799f6cada8549e75b4ce4cbf4c85ef071fd7ff067b1ca9b5968dc41d13d011f6d7843823bac97acb1eb8ee45883f0f254b5f9bd4c763b67e2d8c70a7618a0ef0de304cf597a485126e09f8b2fd795b394c0b4bc4cd2634c2057970da2c798c5e8af7aed4f76f5e25d04e3f8c9c5a5b150d17e0d4c74229898c69b8dc7b8bcc9d359eb441de75c68fbdebec62fb669dcccfb1aad03e3fa073adb2ccf7bb14cbaf99e307d2c903ee71a8f028102eb510caee7e7397512086a78d1f95635c7d06845b5a708652dc4e5cd61245aae5b3c05b84815d84d367bce9b9e3f6d6b90701ac3679233c14d5ce2a1eff26469c966266dc6284bdb95c9c6158934c413a872ce22101e4163e3293d236b301592ca4ccacc1fd4c37066e79c2d9857c8a2560dcf0b33b19163c4240c471b19907476e7e25c65f7eb37276594a0f6b4c33c340cc3284178f17ac5e34dbe7509db890e4ddfd0540fbf9deb32a0101d24fe58b26c5f81c627db9d6ae59d7a111a3d5d1f6109f4eec0d0234e6d73c73a44f50999462724b51ce0fd8283535d70d9e83872c79c59897407a0736741011ae5c64862eb0712f9e7b07aa1d5418ca3fde8626257c6fe418f3c5479055bb2b0ab4c25f649923fc2a41c79aaa7d0f3af6d8b8cf06f61f0230d09bbb60bb49b9e49cc5973748a6cf7ffdee7804d424f9423c63e7ff22f4bd24e4867636ef9fe8dd37f59941a8a47c27765caa8e875a30b62834f17c569227e5e6ed15d58e05d36e76332befad065a2cd4079e66d5af189b0337624c89b1560c3b1b0befd5c1f20e6de8e3d664b3ac06b3d154b488983e14aa93266f5f8b621d2a9bb7ccce509eb26e025c9c45f7cccc09ce85b3103af0c93ce9822f82ecb168ca3177829afb2ea0da2c380e7b1728add55a5d42632e2290363d4cbe432b67e13691648e1acfab22cf0d551eee857709b428bb78e27a45aff6eca301c02e4d13cf36cc2494fdd1aef8dede6e18febd79dca4c6964d09b91c25a08f0947c76ab5104de9404459c2edf5f4adb9dfd771be83656f77fbbafb1ad3281717066010be8778952495383c9f2cf0a38527228c662a35171c5981731f1af09bab842fe6c3162ad4152a4221f560eb6f9bea66b294ffbd3643da2fe34096da13c246505452540177a2a0a1a69106e5cfc279a4890fc3be2952f26be245f930e6c2d9e7e26ee960481e72b99594a1185b46b94b6436d00ba6c70ffe135d43907c92c6f1c09fb9453f103730714f5700fa4347f9715c774cb04a7218dacc66d9c2fade18b14e684aa7fc9ebda0a28")
 	require.NoError(t, err)
 	err = sniff.QUICClientHello(context.Background(), &metadata, pkt)

common/sniff/rdp.go

@@ -8,6 +8,7 @@ import (
 
 	"github.com/sagernet/sing-box/adapter"
 	C "github.com/sagernet/sing-box/constant"
+	E "github.com/sagernet/sing/common/exceptions"
 	"github.com/sagernet/sing/common/rw"
 )
 
@@ -15,7 +16,7 @@ func RDP(_ context.Context, metadata *adapter.InboundContext, reader io.Reader)
 	var tpktVersion uint8
 	err := binary.Read(reader, binary.BigEndian, &tpktVersion)
 	if err != nil {
-		return err
+		return E.Cause1(ErrNeedMoreData, err)
 	}
 	if tpktVersion != 0x03 {
 		return os.ErrInvalid
@@ -24,7 +25,7 @@ func RDP(_ context.Context, metadata *adapter.InboundContext, reader io.Reader)
 	var tpktReserved uint8
 	err = binary.Read(reader, binary.BigEndian, &tpktReserved)
 	if err != nil {
-		return err
+		return E.Cause1(ErrNeedMoreData, err)
 	}
 	if tpktReserved != 0x00 {
 		return os.ErrInvalid
@@ -33,7 +34,7 @@ func RDP(_ context.Context, metadata *adapter.InboundContext, reader io.Reader)
 	var tpktLength uint16
 	err = binary.Read(reader, binary.BigEndian, &tpktLength)
 	if err != nil {
-		return err
+		return E.Cause1(ErrNeedMoreData, err)
 	}
 
 	if tpktLength != 19 {
@@ -43,7 +44,7 @@ func RDP(_ context.Context, metadata *adapter.InboundContext, reader io.Reader)
 	var cotpLength uint8
 	err = binary.Read(reader, binary.BigEndian, &cotpLength)
 	if err != nil {
-		return err
+		return E.Cause1(ErrNeedMoreData, err)
 	}
 
 	if cotpLength != 14 {
@@ -53,7 +54,7 @@ func RDP(_ context.Context, metadata *adapter.InboundContext, reader io.Reader)
 	var cotpTpduType uint8
 	err = binary.Read(reader, binary.BigEndian, &cotpTpduType)
 	if err != nil {
-		return err
+		return E.Cause1(ErrNeedMoreData, err)
 	}
 	if cotpTpduType != 0xE0 {
 		return os.ErrInvalid
@@ -61,13 +62,13 @@ func RDP(_ context.Context, metadata *adapter.InboundContext, reader io.Reader)
 
 	err = rw.SkipN(reader, 5)
 	if err != nil {
-		return err
+		return E.Cause1(ErrNeedMoreData, err)
 	}
 
 	var rdpType uint8
 	err = binary.Read(reader, binary.BigEndian, &rdpType)
 	if err != nil {
-		return err
+		return E.Cause1(ErrNeedMoreData, err)
 	}
 	if rdpType != 0x01 {
 		return os.ErrInvalid
@@ -75,12 +76,12 @@ func RDP(_ context.Context, metadata *adapter.InboundContext, reader io.Reader)
 	var rdpFlags uint8
 	err = binary.Read(reader, binary.BigEndian, &rdpFlags)
 	if err != nil {
-		return err
+		return E.Cause1(ErrNeedMoreData, err)
 	}
 	var rdpLength uint8
 	err = binary.Read(reader, binary.BigEndian, &rdpLength)
 	if err != nil {
-		return err
+		return E.Cause1(ErrNeedMoreData, err)
 	}
 	if rdpLength != 8 {
 		return os.ErrInvalid

common/sniff/sniff.go

@@ -3,12 +3,14 @@ package sniff
 import (
 	"bytes"
 	"context"
+	"errors"
 	"io"
 	"net"
 	"time"
 
 	"github.com/sagernet/sing-box/adapter"
 	C "github.com/sagernet/sing-box/constant"
+	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/buf"
 	E "github.com/sagernet/sing/common/exceptions"
 )
@@ -18,6 +20,8 @@ type (
 	PacketSniffer = func(ctx context.Context, metadata *adapter.InboundContext, packet []byte) error
 )
 
+var ErrNeedMoreData = E.New("need more data")
+
 func Skip(metadata *adapter.InboundContext) bool {
 	// skip server first protocols
 	switch metadata.Destination.Port {
@@ -34,12 +38,12 @@ func Skip(metadata *adapter.InboundContext) bool {
 	return false
 }
 
-func PeekStream(ctx context.Context, metadata *adapter.InboundContext, conn net.Conn, buffer *buf.Buffer, timeout time.Duration, sniffers ...StreamSniffer) error {
+func PeekStream(ctx context.Context, metadata *adapter.InboundContext, conn net.Conn, buffers []*buf.Buffer, buffer *buf.Buffer, timeout time.Duration, sniffers ...StreamSniffer) error {
 	if timeout == 0 {
 		timeout = C.ReadPayloadTimeout
 	}
 	deadline := time.Now().Add(timeout)
-	var errors []error
+	var sniffError error
 	for i := 0; ; i++ {
 		err := conn.SetReadDeadline(deadline)
 		if err != nil {
@@ -53,26 +57,32 @@ func PeekStream(ctx context.Context, metadata *adapter.InboundContext, conn net.
 			}
 			return E.Cause(err, "read payload")
 		}
-		errors = nil
+		sniffError = nil
 		for _, sniffer := range sniffers {
-			err = sniffer(ctx, metadata, bytes.NewReader(buffer.Bytes()))
+			reader := io.MultiReader(common.Map(append(buffers, buffer), func(it *buf.Buffer) io.Reader {
+				return bytes.NewReader(it.Bytes())
+			})...)
+			err = sniffer(ctx, metadata, reader)
 			if err == nil {
 				return nil
 			}
-			errors = append(errors, err)
+			sniffError = E.Errors(sniffError, err)
+		}
+		if !errors.Is(sniffError, ErrNeedMoreData) {
+			break
 		}
 	}
-	return E.Errors(errors...)
+	return sniffError
 }
 
 func PeekPacket(ctx context.Context, metadata *adapter.InboundContext, packet []byte, sniffers ...PacketSniffer) error {
-	var errors []error
+	var sniffError []error
 	for _, sniffer := range sniffers {
 		err := sniffer(ctx, metadata, packet)
 		if err == nil {
 			return nil
 		}
-		errors = append(errors, err)
+		sniffError = append(sniffError, err)
 	}
-	return E.Errors(errors...)
+	return E.Errors(sniffError...)
 }

common/sniff/ssh.go

@@ -5,22 +5,27 @@ import (
 	"context"
 	"io"
 	"os"
-	"strings"
 
 	"github.com/sagernet/sing-box/adapter"
 	C "github.com/sagernet/sing-box/constant"
+	E "github.com/sagernet/sing/common/exceptions"
 )
 
 func SSH(_ context.Context, metadata *adapter.InboundContext, reader io.Reader) error {
-	scanner := bufio.NewScanner(reader)
-	if !scanner.Scan() {
+	const sshPrefix = "SSH-2.0-"
+	bReader := bufio.NewReader(reader)
+	prefix, err := bReader.Peek(len(sshPrefix))
+	if string(prefix[:]) != sshPrefix[:len(prefix)] {
 		return os.ErrInvalid
 	}
-	fistLine := scanner.Text()
-	if !strings.HasPrefix(fistLine, "SSH-2.0-") {
-		return os.ErrInvalid
+	if err != nil {
+		return E.Cause1(ErrNeedMoreData, err)
+	}
+	fistLine, _, err := bReader.ReadLine()
+	if err != nil {
+		return err
 	}
 	metadata.Protocol = C.ProtocolSSH
-	metadata.Client = fistLine[8:]
+	metadata.Client = string(fistLine)[8:]
 	return nil
 }

common/sniff/ssh_test.go

@@ -24,3 +24,24 @@ func TestSniffSSH(t *testing.T) {
 	require.Equal(t, C.ProtocolSSH, metadata.Protocol)
 	require.Equal(t, "dropbear", metadata.Client)
 }
+
+func TestSniffIncompleteSSH(t *testing.T) {
+	t.Parallel()
+
+	pkt, err := hex.DecodeString("5353482d322e30")
+	require.NoError(t, err)
+	var metadata adapter.InboundContext
+	err = sniff.SSH(context.TODO(), &metadata, bytes.NewReader(pkt))
+	require.ErrorIs(t, err, sniff.ErrNeedMoreData)
+}
+
+func TestSniffNotSSH(t *testing.T) {
+	t.Parallel()
+
+	pkt, err := hex.DecodeString("5353482d322e31")
+	require.NoError(t, err)
+	var metadata adapter.InboundContext
+	err = sniff.SSH(context.TODO(), &metadata, bytes.NewReader(pkt))
+	require.NotEmpty(t, err)
+	require.NotErrorIs(t, err, sniff.ErrNeedMoreData)
+}

common/sniff/tls.go

@@ -3,11 +3,13 @@ package sniff
 import (
 	"context"
 	"crypto/tls"
+	"errors"
 	"io"
 
 	"github.com/sagernet/sing-box/adapter"
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing/common/bufio"
+	E "github.com/sagernet/sing/common/exceptions"
 )
 
 func TLSClientHello(ctx context.Context, metadata *adapter.InboundContext, reader io.Reader) error {
@@ -21,8 +23,11 @@ func TLSClientHello(ctx context.Context, metadata *adapter.InboundContext, reade
 	if clientHello != nil {
 		metadata.Protocol = C.ProtocolTLS
 		metadata.Domain = clientHello.ServerName
-		metadata.ClientHello = clientHello
 		return nil
 	}
-	return err
+	if errors.Is(err, io.ErrUnexpectedEOF) {
+		return E.Cause1(ErrNeedMoreData, err)
+	} else {
+		return err
+	}
 }

common/tls/ech_client.go

@@ -15,8 +15,8 @@ import (
 
 	cftls "github.com/sagernet/cloudflare-tls"
 	"github.com/sagernet/sing-box/adapter"
-	"github.com/sagernet/sing-box/dns"
 	"github.com/sagernet/sing-box/option"
+	"github.com/sagernet/sing-dns"
 	E "github.com/sagernet/sing/common/exceptions"
 	"github.com/sagernet/sing/common/ntp"
 	"github.com/sagernet/sing/service"
@@ -100,7 +100,6 @@ func NewECHClient(ctx context.Context, serverAddress string, options option.Outb
 
 	var tlsConfig cftls.Config
 	tlsConfig.Time = ntp.TimeFuncFromContext(ctx)
-	tlsConfig.RootCAs = adapter.RootPoolFromContext(ctx)
 	if options.DisableSNI {
 		tlsConfig.ServerName = "127.0.0.1"
 	} else {
@@ -216,7 +215,7 @@ func fetchECHClientConfig(ctx context.Context) func(_ context.Context, serverNam
 				},
 			},
 		}
-		response, err := service.FromContext[adapter.DNSRouter](ctx).Exchange(ctx, message, adapter.DNSQueryOptions{})
+		response, err := service.FromContext[adapter.Router](ctx).Exchange(ctx, message)
 		if err != nil {
 			return nil, err
 		}

common/tls/ech_server.go

@@ -90,7 +90,7 @@ func (c *echServerConfig) startWatcher() error {
 		Callback: func(path string) {
 			err := c.credentialsUpdated(path)
 			if err != nil {
-				c.logger.Error(E.Cause(err, "reload credentials"))
+				c.logger.Error(E.Cause(err, "reload credentials from ", path))
 			}
 		},
 	})

common/tls/mkcert.go

@@ -8,10 +8,7 @@ import (
 	"crypto/x509/pkix"
 	"encoding/pem"
 	"math/big"
-	"net"
 	"time"
-
-	M "github.com/sagernet/sing/common/metadata"
 )
 
 func GenerateKeyPair(parent *x509.Certificate, parentKey any, timeFunc func() time.Time, serverName string) (*tls.Certificate, error) {
@@ -38,30 +35,17 @@ func GenerateCertificate(parent *x509.Certificate, parentKey any, timeFunc func(
 	if err != nil {
 		return
 	}
-	var template *x509.Certificate
-	if serverAddress := M.ParseAddr(serverName); serverAddress.IsValid() {
-		template = &x509.Certificate{
-			SerialNumber:          serialNumber,
-			IPAddresses:           []net.IP{serverAddress.AsSlice()},
-			NotBefore:             timeFunc().Add(time.Hour * -1),
-			NotAfter:              expire,
-			KeyUsage:              x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature,
-			ExtKeyUsage:           []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
-			BasicConstraintsValid: true,
-		}
-	} else {
-		template = &x509.Certificate{
-			SerialNumber:          serialNumber,
-			NotBefore:             timeFunc().Add(time.Hour * -1),
-			NotAfter:              expire,
-			KeyUsage:              x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature,
-			ExtKeyUsage:           []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
-			BasicConstraintsValid: true,
-			Subject: pkix.Name{
-				CommonName: serverName,
-			},
-			DNSNames: []string{serverName},
-		}
+	template := &x509.Certificate{
+		SerialNumber:          serialNumber,
+		NotBefore:             timeFunc().Add(time.Hour * -1),
+		NotAfter:              expire,
+		KeyUsage:              x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature,
+		ExtKeyUsage:           []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
+		BasicConstraintsValid: true,
+		Subject: pkix.Name{
+			CommonName: serverName,
+		},
+		DNSNames: []string{serverName},
 	}
 	if parent == nil {
 		parent = template

common/tls/reality_client.go

@@ -27,11 +27,9 @@ import (
 	"time"
 	"unsafe"
 
-	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-box/option"
 	"github.com/sagernet/sing/common/debug"
 	E "github.com/sagernet/sing/common/exceptions"
-	"github.com/sagernet/sing/common/ntp"
 	aTLS "github.com/sagernet/sing/common/tls"
 	utls "github.com/sagernet/utls"
 
@@ -42,7 +40,6 @@ import (
 var _ ConfigCompat = (*RealityClientConfig)(nil)
 
 type RealityClientConfig struct {
-	ctx       context.Context
 	uClient   *UTLSClientConfig
 	publicKey []byte
 	shortID   [8]byte
@@ -73,7 +70,7 @@ func NewRealityClient(ctx context.Context, serverAddress string, options option.
 	if decodedLen > 8 {
 		return nil, E.New("invalid short_id")
 	}
-	return &RealityClientConfig{ctx, uClient, publicKey, shortID}, nil
+	return &RealityClientConfig{uClient, publicKey, shortID}, nil
 }
 
 func (e *RealityClientConfig) ServerName() string {
@@ -183,24 +180,20 @@ func (e *RealityClientConfig) ClientHandshake(ctx context.Context, conn net.Conn
 	}
 
 	if !verifier.verified {
-		go realityClientFallback(e.ctx, uConn, e.uClient.ServerName(), e.uClient.id)
+		go realityClientFallback(uConn, e.uClient.ServerName(), e.uClient.id)
 		return nil, E.New("reality verification failed")
 	}
 
 	return &realityClientConnWrapper{uConn}, nil
 }
 
-func realityClientFallback(ctx context.Context, uConn net.Conn, serverName string, fingerprint utls.ClientHelloID) {
+func realityClientFallback(uConn net.Conn, serverName string, fingerprint utls.ClientHelloID) {
 	defer uConn.Close()
 	client := &http.Client{
 		Transport: &http2.Transport{
 			DialTLSContext: func(ctx context.Context, network, addr string, config *tls.Config) (net.Conn, error) {
 				return uConn, nil
 			},
-			TLSClientConfig: &tls.Config{
-				Time:    ntp.TimeFuncFromContext(ctx),
-				RootCAs: adapter.RootPoolFromContext(ctx),
-			},
 		},
 	}
 	request, _ := http.NewRequest("GET", "https://"+serverName, nil)
@@ -220,7 +213,6 @@ func (e *RealityClientConfig) SetSessionIDGenerator(generator func(clientHello [
 
 func (e *RealityClientConfig) Clone() Config {
 	return &RealityClientConfig{
-		e.ctx,
 		e.uClient.Clone().(*UTLSClientConfig),
 		e.publicKey,
 		e.shortID,

common/tls/reality_server.go

@@ -89,19 +89,23 @@ func NewRealityServer(ctx context.Context, logger log.Logger, options option.Inb
 	tlsConfig.MaxTimeDiff = time.Duration(options.Reality.MaxTimeDifference)
 
 	tlsConfig.ShortIds = make(map[[8]byte]bool)
-	for i, shortIDString := range options.Reality.ShortID {
-		var shortID [8]byte
-		decodedLen, err := hex.Decode(shortID[:], []byte(shortIDString))
-		if err != nil {
-			return nil, E.Cause(err, "decode short_id[", i, "]: ", shortIDString)
+	if len(options.Reality.ShortID) == 0 {
+		tlsConfig.ShortIds[[8]byte{0}] = true
+	} else {
+		for i, shortIDString := range options.Reality.ShortID {
+			var shortID [8]byte
+			decodedLen, err := hex.Decode(shortID[:], []byte(shortIDString))
+			if err != nil {
+				return nil, E.Cause(err, "decode short_id[", i, "]: ", shortIDString)
+			}
+			if decodedLen > 8 {
+				return nil, E.New("invalid short_id[", i, "]: ", shortIDString)
+			}
+			tlsConfig.ShortIds[shortID] = true
 		}
-		if decodedLen > 8 {
-			return nil, E.New("invalid short_id[", i, "]: ", shortIDString)
-		}
-		tlsConfig.ShortIds[shortID] = true
 	}
 
-	handshakeDialer, err := dialer.New(ctx, options.Reality.Handshake.DialerOptions, options.Reality.Handshake.ServerIsDomain())
+	handshakeDialer, err := dialer.New(ctx, options.Reality.Handshake.DialerOptions)
 	if err != nil {
 		return nil, err
 	}

common/tls/std_client.go

@@ -5,10 +5,10 @@ import (
 	"crypto/tls"
 	"crypto/x509"
 	"net"
+	"net/netip"
 	"os"
 	"strings"
 
-	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-box/option"
 	E "github.com/sagernet/sing/common/exceptions"
 	"github.com/sagernet/sing/common/ntp"
@@ -51,7 +51,9 @@ func NewSTDClient(ctx context.Context, serverAddress string, options option.Outb
 	if options.ServerName != "" {
 		serverName = options.ServerName
 	} else if serverAddress != "" {
-		serverName = serverAddress
+		if _, err := netip.ParseAddr(serverName); err != nil {
+			serverName = serverAddress
+		}
 	}
 	if serverName == "" && !options.Insecure {
 		return nil, E.New("missing server_name or insecure=true")
@@ -59,7 +61,6 @@ func NewSTDClient(ctx context.Context, serverAddress string, options option.Outb
 
 	var tlsConfig tls.Config
 	tlsConfig.Time = ntp.TimeFuncFromContext(ctx)
-	tlsConfig.RootCAs = adapter.RootPoolFromContext(ctx)
 	if options.DisableSNI {
 		tlsConfig.ServerName = "127.0.0.1"
 	} else {

common/tls/std_server.go

@@ -6,6 +6,7 @@ import (
 	"net"
 	"os"
 	"strings"
+	"time"
 
 	"github.com/sagernet/fswatch"
 	"github.com/sagernet/sing-box/adapter"
@@ -99,7 +100,7 @@ func (c *STDServerConfig) startWatcher() error {
 		Callback: func(path string) {
 			err := c.certificateUpdated(path)
 			if err != nil {
-				c.logger.Error(E.Cause(err, "reload certificate"))
+				c.logger.Error(err)
 			}
 		},
 	})
@@ -221,8 +222,12 @@ func NewSTDServer(ctx context.Context, logger log.Logger, options option.Inbound
 			key = content
 		}
 		if certificate == nil && key == nil && options.Insecure {
+			timeFunc := ntp.TimeFuncFromContext(ctx)
+			if timeFunc == nil {
+				timeFunc = time.Now
+			}
 			tlsConfig.GetCertificate = func(info *tls.ClientHelloInfo) (*tls.Certificate, error) {
-				return GenerateKeyPair(nil, nil, ntp.TimeFuncFromContext(ctx), info.ServerName)
+				return GenerateKeyPair(nil, nil, timeFunc, info.ServerName)
 			}
 		} else {
 			if certificate == nil {

common/tls/utls_client.go

@@ -12,7 +12,6 @@ import (
 	"os"
 	"strings"
 
-	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-box/option"
 	E "github.com/sagernet/sing/common/exceptions"
 	"github.com/sagernet/sing/common/ntp"
@@ -131,7 +130,6 @@ func NewUTLSClient(ctx context.Context, serverAddress string, options option.Out
 
 	var tlsConfig utls.Config
 	tlsConfig.Time = ntp.TimeFuncFromContext(ctx)
-	tlsConfig.RootCAs = adapter.RootPoolFromContext(ctx)
 	if options.DisableSNI {
 		tlsConfig.ServerName = "127.0.0.1"
 	} else {

common/tlsfragment/conn.go

@@ -1,107 +0,0 @@
-package tf
-
-import (
-	"context"
-	"math/rand"
-	"net"
-	"strings"
-	"time"
-
-	N "github.com/sagernet/sing/common/network"
-
-	"golang.org/x/net/publicsuffix"
-)
-
-type Conn struct {
-	net.Conn
-	tcpConn            *net.TCPConn
-	ctx                context.Context
-	firstPacketWritten bool
-	fallbackDelay      time.Duration
-}
-
-func NewConn(conn net.Conn, ctx context.Context, fallbackDelay time.Duration) (*Conn, error) {
-	tcpConn, _ := N.UnwrapReader(conn).(*net.TCPConn)
-	return &Conn{
-		Conn:          conn,
-		tcpConn:       tcpConn,
-		ctx:           ctx,
-		fallbackDelay: fallbackDelay,
-	}, nil
-}
-
-func (c *Conn) Write(b []byte) (n int, err error) {
-	if !c.firstPacketWritten {
-		defer func() {
-			c.firstPacketWritten = true
-		}()
-		serverName := indexTLSServerName(b)
-		if serverName != nil {
-			if c.tcpConn != nil {
-				err = c.tcpConn.SetNoDelay(true)
-				if err != nil {
-					return
-				}
-			}
-			splits := strings.Split(serverName.ServerName, ".")
-			currentIndex := serverName.Index
-			if publicSuffix := publicsuffix.List.PublicSuffix(serverName.ServerName); publicSuffix != "" {
-				splits = splits[:len(splits)-strings.Count(serverName.ServerName, ".")]
-			}
-			if len(splits) > 1 && splits[0] == "..." {
-				currentIndex += len(splits[0]) + 1
-				splits = splits[1:]
-			}
-			var splitIndexes []int
-			for i, split := range splits {
-				splitAt := rand.Intn(len(split))
-				splitIndexes = append(splitIndexes, currentIndex+splitAt)
-				currentIndex += len(split)
-				if i != len(splits)-1 {
-					currentIndex++
-				}
-			}
-			for i := 0; i <= len(splitIndexes); i++ {
-				var payload []byte
-				if i == 0 {
-					payload = b[:splitIndexes[i]]
-				} else if i == len(splitIndexes) {
-					payload = b[splitIndexes[i-1]:]
-				} else {
-					payload = b[splitIndexes[i-1]:splitIndexes[i]]
-				}
-				if c.tcpConn != nil && i != len(splitIndexes) {
-					err = writeAndWaitAck(c.ctx, c.tcpConn, payload, c.fallbackDelay)
-					if err != nil {
-						return
-					}
-				} else {
-					_, err = c.Conn.Write(payload)
-					if err != nil {
-						return
-					}
-				}
-			}
-			if c.tcpConn != nil {
-				err = c.tcpConn.SetNoDelay(false)
-				if err != nil {
-					return
-				}
-			}
-			return len(b), nil
-		}
-	}
-	return c.Conn.Write(b)
-}
-
-func (c *Conn) ReaderReplaceable() bool {
-	return true
-}
-
-func (c *Conn) WriterReplaceable() bool {
-	return c.firstPacketWritten
-}
-
-func (c *Conn) Upstream() any {
-	return c.Conn
-}

common/tlsfragment/index.go

@@ -1,131 +0,0 @@
-package tf
-
-import (
-	"encoding/binary"
-)
-
-const (
-	recordLayerHeaderLen    int    = 5
-	handshakeHeaderLen      int    = 6
-	randomDataLen           int    = 32
-	sessionIDHeaderLen      int    = 1
-	cipherSuiteHeaderLen    int    = 2
-	compressMethodHeaderLen int    = 1
-	extensionsHeaderLen     int    = 2
-	extensionHeaderLen      int    = 4
-	sniExtensionHeaderLen   int    = 5
-	contentType             uint8  = 22
-	handshakeType           uint8  = 1
-	sniExtensionType        uint16 = 0
-	sniNameDNSHostnameType  uint8  = 0
-	tlsVersionBitmask       uint16 = 0xFFFC
-	tls13                   uint16 = 0x0304
-)
-
-type myServerName struct {
-	Index      int
-	Length     int
-	ServerName string
-}
-
-func indexTLSServerName(payload []byte) *myServerName {
-	if len(payload) < recordLayerHeaderLen || payload[0] != contentType {
-		return nil
-	}
-	segmentLen := binary.BigEndian.Uint16(payload[3:5])
-	if len(payload) < recordLayerHeaderLen+int(segmentLen) {
-		return nil
-	}
-	serverName := indexTLSServerNameFromHandshake(payload[recordLayerHeaderLen : recordLayerHeaderLen+int(segmentLen)])
-	if serverName == nil {
-		return nil
-	}
-	serverName.Length += recordLayerHeaderLen
-	return serverName
-}
-
-func indexTLSServerNameFromHandshake(hs []byte) *myServerName {
-	if len(hs) < handshakeHeaderLen+randomDataLen+sessionIDHeaderLen {
-		return nil
-	}
-	if hs[0] != handshakeType {
-		return nil
-	}
-	handshakeLen := uint32(hs[1])<<16 | uint32(hs[2])<<8 | uint32(hs[3])
-	if len(hs[4:]) != int(handshakeLen) {
-		return nil
-	}
-	tlsVersion := uint16(hs[4])<<8 | uint16(hs[5])
-	if tlsVersion&tlsVersionBitmask != 0x0300 && tlsVersion != tls13 {
-		return nil
-	}
-	sessionIDLen := hs[38]
-	if len(hs) < handshakeHeaderLen+randomDataLen+sessionIDHeaderLen+int(sessionIDLen) {
-		return nil
-	}
-	cs := hs[handshakeHeaderLen+randomDataLen+sessionIDHeaderLen+int(sessionIDLen):]
-	if len(cs) < cipherSuiteHeaderLen {
-		return nil
-	}
-	csLen := uint16(cs[0])<<8 | uint16(cs[1])
-	if len(cs) < cipherSuiteHeaderLen+int(csLen)+compressMethodHeaderLen {
-		return nil
-	}
-	compressMethodLen := uint16(cs[cipherSuiteHeaderLen+int(csLen)])
-	if len(cs) < cipherSuiteHeaderLen+int(csLen)+compressMethodHeaderLen+int(compressMethodLen) {
-		return nil
-	}
-	currentIndex := cipherSuiteHeaderLen + int(csLen) + compressMethodHeaderLen + int(compressMethodLen)
-	serverName := indexTLSServerNameFromExtensions(cs[currentIndex:])
-	if serverName == nil {
-		return nil
-	}
-	serverName.Index += currentIndex
-	return serverName
-}
-
-func indexTLSServerNameFromExtensions(exs []byte) *myServerName {
-	if len(exs) == 0 {
-		return nil
-	}
-	if len(exs) < extensionsHeaderLen {
-		return nil
-	}
-	exsLen := uint16(exs[0])<<8 | uint16(exs[1])
-	exs = exs[extensionsHeaderLen:]
-	if len(exs) < int(exsLen) {
-		return nil
-	}
-	for currentIndex := extensionsHeaderLen; len(exs) > 0; {
-		if len(exs) < extensionHeaderLen {
-			return nil
-		}
-		exType := uint16(exs[0])<<8 | uint16(exs[1])
-		exLen := uint16(exs[2])<<8 | uint16(exs[3])
-		if len(exs) < extensionHeaderLen+int(exLen) {
-			return nil
-		}
-		sex := exs[extensionHeaderLen : extensionHeaderLen+int(exLen)]
-
-		switch exType {
-		case sniExtensionType:
-			if len(sex) < sniExtensionHeaderLen {
-				return nil
-			}
-			sniType := sex[2]
-			if sniType != sniNameDNSHostnameType {
-				return nil
-			}
-			sniLen := uint16(sex[3])<<8 | uint16(sex[4])
-			sex = sex[sniExtensionHeaderLen:]
-			return &myServerName{
-				Index:      currentIndex + extensionHeaderLen + sniExtensionHeaderLen,
-				Length:     int(sniLen),
-				ServerName: string(sex),
-			}
-		}
-		exs = exs[4+exLen:]
-		currentIndex += 4 + int(exLen)
-	}
-	return nil
-}

common/tlsfragment/wait_darwin.go

@@ -1,93 +0,0 @@
-package tf
-
-import (
-	"context"
-	"net"
-	"time"
-
-	"github.com/sagernet/sing/common/control"
-
-	"golang.org/x/sys/unix"
-)
-
-/*
-const tcpMaxNotifyAck = 10
-
-type tcpNotifyAckID uint32
-
-	type tcpNotifyAckComplete struct {
-		NotifyPending       uint32
-		NotifyCompleteCount uint32
-		NotifyCompleteID    [tcpMaxNotifyAck]tcpNotifyAckID
-	}
-
-var sizeOfTCPNotifyAckComplete = int(unsafe.Sizeof(tcpNotifyAckComplete{}))
-
-	func getsockoptTCPNotifyAckComplete(fd, level, opt int) (*tcpNotifyAckComplete, error) {
-		var value tcpNotifyAckComplete
-		vallen := uint32(sizeOfTCPNotifyAckComplete)
-		err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
-		return &value, err
-	}
-
-//go:linkname getsockopt golang.org/x/sys/unix.getsockopt
-func getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *uint32) error
-
-	func waitAck(ctx context.Context, conn *net.TCPConn, _ time.Duration) error {
-		const TCP_NOTIFY_ACKNOWLEDGEMENT = 0x212
-		return control.Conn(conn, func(fd uintptr) error {
-			err := unix.SetsockoptInt(int(fd), unix.IPPROTO_TCP, TCP_NOTIFY_ACKNOWLEDGEMENT, 1)
-			if err != nil {
-				if errors.Is(err, unix.EINVAL) {
-					return waitAckFallback(ctx, conn, 0)
-				}
-				return err
-			}
-			for {
-				select {
-				case <-ctx.Done():
-					return ctx.Err()
-				default:
-				}
-				var ackComplete *tcpNotifyAckComplete
-				ackComplete, err = getsockoptTCPNotifyAckComplete(int(fd), unix.IPPROTO_TCP, TCP_NOTIFY_ACKNOWLEDGEMENT)
-				if err != nil {
-					return err
-				}
-				if ackComplete.NotifyPending == 0 {
-					return nil
-				}
-				time.Sleep(10 * time.Millisecond)
-			}
-		})
-	}
-*/
-
-func writeAndWaitAck(ctx context.Context, conn *net.TCPConn, payload []byte, fallbackDelay time.Duration) error {
-	_, err := conn.Write(payload)
-	if err != nil {
-		return err
-	}
-	return control.Conn(conn, func(fd uintptr) error {
-		start := time.Now()
-		for {
-			select {
-			case <-ctx.Done():
-				return ctx.Err()
-			default:
-			}
-			unacked, err := unix.GetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_NWRITE)
-			if err != nil {
-				return err
-			}
-			if unacked == 0 {
-				if time.Since(start) <= 20*time.Millisecond {
-					// under transparent proxy
-					time.Sleep(fallbackDelay)
-				}
-				return nil
-			}
-			time.Sleep(10 * time.Millisecond)
-		}
-	})
-}

common/tlsfragment/wait_linux.go

@@ -1,40 +0,0 @@
-package tf
-
-import (
-	"context"
-	"net"
-	"time"
-
-	"github.com/sagernet/sing/common/control"
-
-	"golang.org/x/sys/unix"
-)
-
-func writeAndWaitAck(ctx context.Context, conn *net.TCPConn, payload []byte, fallbackDelay time.Duration) error {
-	_, err := conn.Write(payload)
-	if err != nil {
-		return err
-	}
-	return control.Conn(conn, func(fd uintptr) error {
-		start := time.Now()
-		for {
-			select {
-			case <-ctx.Done():
-				return ctx.Err()
-			default:
-			}
-			tcpInfo, err := unix.GetsockoptTCPInfo(int(fd), unix.IPPROTO_TCP, unix.TCP_INFO)
-			if err != nil {
-				return err
-			}
-			if tcpInfo.Unacked == 0 {
-				if time.Since(start) <= 20*time.Millisecond {
-					// under transparent proxy
-					time.Sleep(fallbackDelay)
-				}
-				return nil
-			}
-			time.Sleep(10 * time.Millisecond)
-		}
-	})
-}

common/tlsfragment/wait_stub.go

@@ -1,14 +0,0 @@
-//go:build !(linux || darwin || windows)
-
-package tf
-
-import (
-	"context"
-	"net"
-	"time"
-)
-
-func writeAndWaitAck(ctx context.Context, conn *net.TCPConn, payload []byte, fallbackDelay time.Duration) error {
-	time.Sleep(fallbackDelay)
-	return nil
-}

common/tlsfragment/wait_windows.go

@@ -1,28 +0,0 @@
-package tf
-
-import (
-	"context"
-	"errors"
-	"net"
-	"time"
-
-	"github.com/sagernet/sing/common/winiphlpapi"
-
-	"golang.org/x/sys/windows"
-)
-
-func writeAndWaitAck(ctx context.Context, conn *net.TCPConn, payload []byte, fallbackDelay time.Duration) error {
-	start := time.Now()
-	err := winiphlpapi.WriteAndWaitAck(ctx, conn, payload)
-	if err != nil {
-		if errors.Is(err, windows.ERROR_ACCESS_DENIED) {
-			time.Sleep(fallbackDelay)
-			return nil
-		}
-		return err
-	}
-	if time.Since(start) <= 20*time.Millisecond {
-		time.Sleep(fallbackDelay)
-	}
-	return nil
-}

common/urltest/urltest.go

@@ -2,32 +2,32 @@ package urltest
 
 import (
 	"context"
-	"crypto/tls"
 	"net"
 	"net/http"
 	"net/url"
 	"sync"
 	"time"
 
-	"github.com/sagernet/sing-box/adapter"
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing/common"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
-	"github.com/sagernet/sing/common/ntp"
 )
 
-var _ adapter.URLTestHistoryStorage = (*HistoryStorage)(nil)
+type History struct {
+	Time  time.Time `json:"time"`
+	Delay uint16    `json:"delay"`
+}
 
 type HistoryStorage struct {
 	access       sync.RWMutex
-	delayHistory map[string]*adapter.URLTestHistory
+	delayHistory map[string]*History
 	updateHook   chan<- struct{}
 }
 
 func NewHistoryStorage() *HistoryStorage {
 	return &HistoryStorage{
-		delayHistory: make(map[string]*adapter.URLTestHistory),
+		delayHistory: make(map[string]*History),
 	}
 }
 
@@ -35,7 +35,7 @@ func (s *HistoryStorage) SetHook(hook chan<- struct{}) {
 	s.updateHook = hook
 }
 
-func (s *HistoryStorage) LoadURLTestHistory(tag string) *adapter.URLTestHistory {
+func (s *HistoryStorage) LoadURLTestHistory(tag string) *History {
 	if s == nil {
 		return nil
 	}
@@ -51,7 +51,7 @@ func (s *HistoryStorage) DeleteURLTestHistory(tag string) {
 	s.notifyUpdated()
 }
 
-func (s *HistoryStorage) StoreURLTestHistory(tag string, history *adapter.URLTestHistory) {
+func (s *HistoryStorage) StoreURLTestHistory(tag string, history *History) {
 	s.access.Lock()
 	s.delayHistory[tag] = history
 	s.access.Unlock()
@@ -110,10 +110,6 @@ func URLTest(ctx context.Context, link string, detour N.Dialer) (t uint16, err e
 			DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
 				return instance, nil
 			},
-			TLSClientConfig: &tls.Config{
-				Time:    ntp.TimeFuncFromContext(ctx),
-				RootCAs: adapter.RootPoolFromContext(ctx),
-			},
 		},
 		CheckRedirect: func(req *http.Request, via []*http.Request) error {
 			return http.ErrUseLastResponse

constant/certificate.go

@@ -1,7 +0,0 @@
-package constant
-
-const (
-	CertificateStoreSystem  = "system"
-	CertificateStoreMozilla = "mozilla"
-	CertificateStoreNone    = "none"
-)

constant/dns.go

@@ -1,34 +1,5 @@
 package constant
 
-const (
-	DefaultDNSTTL = 600
-)
-
-type DomainStrategy = uint8
-
-const (
-	DomainStrategyAsIS DomainStrategy = iota
-	DomainStrategyPreferIPv4
-	DomainStrategyPreferIPv6
-	DomainStrategyIPv4Only
-	DomainStrategyIPv6Only
-)
-
-const (
-	DNSTypeLegacy     = "legacy"
-	DNSTypeUDP        = "udp"
-	DNSTypeTCP        = "tcp"
-	DNSTypeTLS        = "tls"
-	DNSTypeHTTPS      = "https"
-	DNSTypeQUIC       = "quic"
-	DNSTypeHTTP3      = "h3"
-	DNSTypeHosts      = "hosts"
-	DNSTypeLocal      = "local"
-	DNSTypePreDefined = "predefined"
-	DNSTypeFakeIP     = "fakeip"
-	DNSTypeDHCP       = "dhcp"
-)
-
 const (
 	DNSProviderAliDNS     = "alidns"
 	DNSProviderCloudflare = "cloudflare"

constant/script.go

@@ -1,7 +0,0 @@
-package constant
-
-const (
-	ScriptTypeSurge        = "surge"
-	ScriptSourceTypeLocal  = "local"
-	ScriptSourceTypeRemote = "remote"
-)

constant/timeout.go

@@ -16,7 +16,6 @@ const (
 	StopTimeout                = 5 * time.Second
 	FatalStopTimeout           = 10 * time.Second
 	FakeIPMetadataSaveInterval = 10 * time.Second
-	TLSFragmentFallbackDelay   = 500 * time.Millisecond
 )
 
 var PortProtocols = map[uint16]string{

debug.go

@@ -24,9 +24,9 @@ func applyDebugOptions(options option.DebugOptions) {
 	if options.TraceBack != "" {
 		debug.SetTraceback(options.TraceBack)
 	}
-	if options.MemoryLimit != 0 {
-		debug.SetMemoryLimit(int64(float64(options.MemoryLimit) / 1.5))
-		conntrack.MemoryLimit = uint64(options.MemoryLimit)
+	if options.MemoryLimit.Value() != 0 {
+		debug.SetMemoryLimit(int64(float64(options.MemoryLimit.Value()) / 1.5))
+		conntrack.MemoryLimit = options.MemoryLimit.Value()
 	}
 	if options.OOMKiller != nil {
 		conntrack.KillerEnabled = *options.OOMKiller

debug_http.go

@@ -7,9 +7,9 @@ import (
 	"runtime/debug"
 	"strings"
 
-	"github.com/sagernet/sing-box/common/humanize"
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
+	"github.com/sagernet/sing/common/byteformats"
 	E "github.com/sagernet/sing/common/exceptions"
 	"github.com/sagernet/sing/common/json"
 	"github.com/sagernet/sing/common/json/badjson"
@@ -38,9 +38,9 @@ func applyDebugListenOption(options option.DebugOptions) {
 			runtime.ReadMemStats(&memStats)
 
 			var memObject badjson.JSONObject
-			memObject.Put("heap", humanize.MemoryBytes(memStats.HeapInuse))
-			memObject.Put("stack", humanize.MemoryBytes(memStats.StackInuse))
-			memObject.Put("idle", humanize.MemoryBytes(memStats.HeapIdle-memStats.HeapReleased))
+			memObject.Put("heap", byteformats.FormatMemoryBytes(memStats.HeapInuse))
+			memObject.Put("stack", byteformats.FormatMemoryBytes(memStats.StackInuse))
+			memObject.Put("idle", byteformats.FormatMemoryBytes(memStats.HeapIdle-memStats.HeapReleased))
 			memObject.Put("goroutines", runtime.NumGoroutine())
 			memObject.Put("rss", rusageMaxRSS())
 

dns/client.go

@@ -1,563 +0,0 @@
-package dns
-
-import (
-	"context"
-	"net"
-	"net/netip"
-	"strings"
-	"time"
-
-	"github.com/sagernet/sing-box/adapter"
-	C "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing/common"
-	E "github.com/sagernet/sing/common/exceptions"
-	"github.com/sagernet/sing/common/logger"
-	M "github.com/sagernet/sing/common/metadata"
-	"github.com/sagernet/sing/common/task"
-	"github.com/sagernet/sing/contrab/freelru"
-	"github.com/sagernet/sing/contrab/maphash"
-
-	"github.com/miekg/dns"
-)
-
-var (
-	ErrNoRawSupport           = E.New("no raw query support by current transport")
-	ErrNotCached              = E.New("not cached")
-	ErrResponseRejected       = E.New("response rejected")
-	ErrResponseRejectedCached = E.Extend(ErrResponseRejected, "cached")
-)
-
-var _ adapter.DNSClient = (*Client)(nil)
-
-type Client struct {
-	timeout          time.Duration
-	disableCache     bool
-	disableExpire    bool
-	independentCache bool
-	rdrc             adapter.RDRCStore
-	initRDRCFunc     func() adapter.RDRCStore
-	logger           logger.ContextLogger
-	cache            freelru.Cache[dns.Question, *dns.Msg]
-	transportCache   freelru.Cache[transportCacheKey, *dns.Msg]
-}
-
-type ClientOptions struct {
-	Timeout          time.Duration
-	DisableCache     bool
-	DisableExpire    bool
-	IndependentCache bool
-	CacheCapacity    uint32
-	RDRC             func() adapter.RDRCStore
-	Logger           logger.ContextLogger
-}
-
-func NewClient(options ClientOptions) *Client {
-	client := &Client{
-		timeout:          options.Timeout,
-		disableCache:     options.DisableCache,
-		disableExpire:    options.DisableExpire,
-		independentCache: options.IndependentCache,
-		initRDRCFunc:     options.RDRC,
-		logger:           options.Logger,
-	}
-	if client.timeout == 0 {
-		client.timeout = C.DNSTimeout
-	}
-	cacheCapacity := options.CacheCapacity
-	if cacheCapacity < 1024 {
-		cacheCapacity = 1024
-	}
-	if !client.disableCache {
-		if !client.independentCache {
-			client.cache = common.Must1(freelru.NewSharded[dns.Question, *dns.Msg](cacheCapacity, maphash.NewHasher[dns.Question]().Hash32))
-		} else {
-			client.transportCache = common.Must1(freelru.NewSharded[transportCacheKey, *dns.Msg](cacheCapacity, maphash.NewHasher[transportCacheKey]().Hash32))
-		}
-	}
-	return client
-}
-
-type transportCacheKey struct {
-	dns.Question
-	transportTag string
-}
-
-func (c *Client) Start() {
-	if c.initRDRCFunc != nil {
-		c.rdrc = c.initRDRCFunc()
-	}
-}
-
-func (c *Client) Exchange(ctx context.Context, transport adapter.DNSTransport, message *dns.Msg, options adapter.DNSQueryOptions, responseChecker func(responseAddrs []netip.Addr) bool) (*dns.Msg, error) {
-	if len(message.Question) == 0 {
-		if c.logger != nil {
-			c.logger.WarnContext(ctx, "bad question size: ", len(message.Question))
-		}
-		responseMessage := dns.Msg{
-			MsgHdr: dns.MsgHdr{
-				Id:       message.Id,
-				Response: true,
-				Rcode:    dns.RcodeFormatError,
-			},
-			Question: message.Question,
-		}
-		return &responseMessage, nil
-	}
-	question := message.Question[0]
-	if options.ClientSubnet.IsValid() {
-		message = SetClientSubnet(message, options.ClientSubnet, true)
-	}
-	isSimpleRequest := len(message.Question) == 1 &&
-		len(message.Ns) == 0 &&
-		len(message.Extra) == 0 &&
-		!options.ClientSubnet.IsValid()
-	disableCache := !isSimpleRequest || c.disableCache || options.DisableCache
-	if !disableCache {
-		response, ttl := c.loadResponse(question, transport)
-		if response != nil {
-			logCachedResponse(c.logger, ctx, response, ttl)
-			response.Id = message.Id
-			return response, nil
-		}
-	}
-	if question.Qtype == dns.TypeA && options.Strategy == C.DomainStrategyIPv6Only || question.Qtype == dns.TypeAAAA && options.Strategy == C.DomainStrategyIPv4Only {
-		responseMessage := dns.Msg{
-			MsgHdr: dns.MsgHdr{
-				Id:       message.Id,
-				Response: true,
-				Rcode:    dns.RcodeSuccess,
-			},
-			Question: []dns.Question{question},
-		}
-		if c.logger != nil {
-			c.logger.DebugContext(ctx, "strategy rejected")
-		}
-		return &responseMessage, nil
-	}
-	messageId := message.Id
-	contextTransport, clientSubnetLoaded := transportTagFromContext(ctx)
-	if clientSubnetLoaded && transport.Tag() == contextTransport {
-		return nil, E.New("DNS query loopback in transport[", contextTransport, "]")
-	}
-	ctx = contextWithTransportTag(ctx, transport.Tag())
-	if responseChecker != nil && c.rdrc != nil {
-		rejected := c.rdrc.LoadRDRC(transport.Tag(), question.Name, question.Qtype)
-		if rejected {
-			return nil, ErrResponseRejectedCached
-		}
-	}
-	ctx, cancel := context.WithTimeout(ctx, c.timeout)
-	response, err := transport.Exchange(ctx, message)
-	cancel()
-	if err != nil {
-		return nil, err
-	}
-	/*if question.Qtype == dns.TypeA || question.Qtype == dns.TypeAAAA {
-		validResponse := response
-	loop:
-		for {
-			var (
-				addresses  int
-				queryCNAME string
-			)
-			for _, rawRR := range validResponse.Answer {
-				switch rr := rawRR.(type) {
-				case *dns.A:
-					break loop
-				case *dns.AAAA:
-					break loop
-				case *dns.CNAME:
-					queryCNAME = rr.Target
-				}
-			}
-			if queryCNAME == "" {
-				break
-			}
-			exMessage := *message
-			exMessage.Question = []dns.Question{{
-				Name:  queryCNAME,
-				Qtype: question.Qtype,
-			}}
-			validResponse, err = c.Exchange(ctx, transport, &exMessage, options, responseChecker)
-			if err != nil {
-				return nil, err
-			}
-		}
-		if validResponse != response {
-			response.Answer = append(response.Answer, validResponse.Answer...)
-		}
-	}*/
-	if responseChecker != nil {
-		addr, addrErr := MessageToAddresses(response)
-		if addrErr != nil || !responseChecker(addr) {
-			if c.rdrc != nil {
-				c.rdrc.SaveRDRCAsync(transport.Tag(), question.Name, question.Qtype, c.logger)
-			}
-			logRejectedResponse(c.logger, ctx, response)
-			return response, ErrResponseRejected
-		}
-	}
-	if question.Qtype == dns.TypeHTTPS {
-		if options.Strategy == C.DomainStrategyIPv4Only || options.Strategy == C.DomainStrategyIPv6Only {
-			for _, rr := range response.Answer {
-				https, isHTTPS := rr.(*dns.HTTPS)
-				if !isHTTPS {
-					continue
-				}
-				content := https.SVCB
-				content.Value = common.Filter(content.Value, func(it dns.SVCBKeyValue) bool {
-					if options.Strategy == C.DomainStrategyIPv4Only {
-						return it.Key() != dns.SVCB_IPV6HINT
-					} else {
-						return it.Key() != dns.SVCB_IPV4HINT
-					}
-				})
-				https.SVCB = content
-			}
-		}
-	}
-	var timeToLive uint32
-	for _, recordList := range [][]dns.RR{response.Answer, response.Ns, response.Extra} {
-		for _, record := range recordList {
-			if timeToLive == 0 || record.Header().Ttl > 0 && record.Header().Ttl < timeToLive {
-				timeToLive = record.Header().Ttl
-			}
-		}
-	}
-	if options.RewriteTTL != nil {
-		timeToLive = *options.RewriteTTL
-	}
-	for _, recordList := range [][]dns.RR{response.Answer, response.Ns, response.Extra} {
-		for _, record := range recordList {
-			record.Header().Ttl = timeToLive
-		}
-	}
-	response.Id = messageId
-	if !disableCache {
-		c.storeCache(transport, question, response, timeToLive)
-	}
-	logExchangedResponse(c.logger, ctx, response, timeToLive)
-	return response, err
-}
-
-func (c *Client) Lookup(ctx context.Context, transport adapter.DNSTransport, domain string, options adapter.DNSQueryOptions, responseChecker func(responseAddrs []netip.Addr) bool) ([]netip.Addr, error) {
-	domain = FqdnToDomain(domain)
-	dnsName := dns.Fqdn(domain)
-	if options.Strategy == C.DomainStrategyIPv4Only {
-		return c.lookupToExchange(ctx, transport, dnsName, dns.TypeA, options, responseChecker)
-	} else if options.Strategy == C.DomainStrategyIPv6Only {
-		return c.lookupToExchange(ctx, transport, dnsName, dns.TypeAAAA, options, responseChecker)
-	}
-	var response4 []netip.Addr
-	var response6 []netip.Addr
-	var group task.Group
-	group.Append("exchange4", func(ctx context.Context) error {
-		response, err := c.lookupToExchange(ctx, transport, dnsName, dns.TypeA, options, responseChecker)
-		if err != nil {
-			return err
-		}
-		response4 = response
-		return nil
-	})
-	group.Append("exchange6", func(ctx context.Context) error {
-		response, err := c.lookupToExchange(ctx, transport, dnsName, dns.TypeAAAA, options, responseChecker)
-		if err != nil {
-			return err
-		}
-		response6 = response
-		return nil
-	})
-	err := group.Run(ctx)
-	if len(response4) == 0 && len(response6) == 0 {
-		return nil, err
-	}
-	return sortAddresses(response4, response6, options.Strategy), nil
-}
-
-func (c *Client) ClearCache() {
-	if c.cache != nil {
-		c.cache.Purge()
-	}
-	if c.transportCache != nil {
-		c.transportCache.Purge()
-	}
-}
-
-func (c *Client) LookupCache(domain string, strategy C.DomainStrategy) ([]netip.Addr, bool) {
-	if c.disableCache || c.independentCache {
-		return nil, false
-	}
-	if dns.IsFqdn(domain) {
-		domain = domain[:len(domain)-1]
-	}
-	dnsName := dns.Fqdn(domain)
-	if strategy == C.DomainStrategyIPv4Only {
-		response, err := c.questionCache(dns.Question{
-			Name:   dnsName,
-			Qtype:  dns.TypeA,
-			Qclass: dns.ClassINET,
-		}, nil)
-		if err != ErrNotCached {
-			return response, true
-		}
-	} else if strategy == C.DomainStrategyIPv6Only {
-		response, err := c.questionCache(dns.Question{
-			Name:   dnsName,
-			Qtype:  dns.TypeAAAA,
-			Qclass: dns.ClassINET,
-		}, nil)
-		if err != ErrNotCached {
-			return response, true
-		}
-	} else {
-		response4, _ := c.questionCache(dns.Question{
-			Name:   dnsName,
-			Qtype:  dns.TypeA,
-			Qclass: dns.ClassINET,
-		}, nil)
-		response6, _ := c.questionCache(dns.Question{
-			Name:   dnsName,
-			Qtype:  dns.TypeAAAA,
-			Qclass: dns.ClassINET,
-		}, nil)
-		if len(response4) > 0 || len(response6) > 0 {
-			return sortAddresses(response4, response6, strategy), true
-		}
-	}
-	return nil, false
-}
-
-func (c *Client) ExchangeCache(ctx context.Context, message *dns.Msg) (*dns.Msg, bool) {
-	if c.disableCache || c.independentCache || len(message.Question) != 1 {
-		return nil, false
-	}
-	question := message.Question[0]
-	response, ttl := c.loadResponse(question, nil)
-	if response == nil {
-		return nil, false
-	}
-	logCachedResponse(c.logger, ctx, response, ttl)
-	response.Id = message.Id
-	return response, true
-}
-
-func sortAddresses(response4 []netip.Addr, response6 []netip.Addr, strategy C.DomainStrategy) []netip.Addr {
-	if strategy == C.DomainStrategyPreferIPv6 {
-		return append(response6, response4...)
-	} else {
-		return append(response4, response6...)
-	}
-}
-
-func (c *Client) storeCache(transport adapter.DNSTransport, question dns.Question, message *dns.Msg, timeToLive uint32) {
-	if timeToLive == 0 {
-		return
-	}
-	if c.disableExpire {
-		if !c.independentCache {
-			c.cache.Add(question, message)
-		} else {
-			c.transportCache.Add(transportCacheKey{
-				Question:     question,
-				transportTag: transport.Tag(),
-			}, message)
-		}
-		return
-	}
-	if !c.independentCache {
-		c.cache.AddWithLifetime(question, message, time.Second*time.Duration(timeToLive))
-	} else {
-		c.transportCache.AddWithLifetime(transportCacheKey{
-			Question:     question,
-			transportTag: transport.Tag(),
-		}, message, time.Second*time.Duration(timeToLive))
-	}
-}
-
-func (c *Client) lookupToExchange(ctx context.Context, transport adapter.DNSTransport, name string, qType uint16, options adapter.DNSQueryOptions, responseChecker func(responseAddrs []netip.Addr) bool) ([]netip.Addr, error) {
-	question := dns.Question{
-		Name:   name,
-		Qtype:  qType,
-		Qclass: dns.ClassINET,
-	}
-	disableCache := c.disableCache || options.DisableCache
-	if !disableCache {
-		cachedAddresses, err := c.questionCache(question, transport)
-		if err != ErrNotCached {
-			return cachedAddresses, err
-		}
-	}
-	message := dns.Msg{
-		MsgHdr: dns.MsgHdr{
-			RecursionDesired: true,
-		},
-		Question: []dns.Question{question},
-	}
-	response, err := c.Exchange(ctx, transport, &message, options, responseChecker)
-	if err != nil {
-		return nil, err
-	}
-	return MessageToAddresses(response)
-}
-
-func (c *Client) questionCache(question dns.Question, transport adapter.DNSTransport) ([]netip.Addr, error) {
-	response, _ := c.loadResponse(question, transport)
-	if response == nil {
-		return nil, ErrNotCached
-	}
-	return MessageToAddresses(response)
-}
-
-func (c *Client) loadResponse(question dns.Question, transport adapter.DNSTransport) (*dns.Msg, int) {
-	var (
-		response *dns.Msg
-		loaded   bool
-	)
-	if c.disableExpire {
-		if !c.independentCache {
-			response, loaded = c.cache.Get(question)
-		} else {
-			response, loaded = c.transportCache.Get(transportCacheKey{
-				Question:     question,
-				transportTag: transport.Tag(),
-			})
-		}
-		if !loaded {
-			return nil, 0
-		}
-		return response.Copy(), 0
-	} else {
-		var expireAt time.Time
-		if !c.independentCache {
-			response, expireAt, loaded = c.cache.GetWithLifetime(question)
-		} else {
-			response, expireAt, loaded = c.transportCache.GetWithLifetime(transportCacheKey{
-				Question:     question,
-				transportTag: transport.Tag(),
-			})
-		}
-		if !loaded {
-			return nil, 0
-		}
-		timeNow := time.Now()
-		if timeNow.After(expireAt) {
-			if !c.independentCache {
-				c.cache.Remove(question)
-			} else {
-				c.transportCache.Remove(transportCacheKey{
-					Question:     question,
-					transportTag: transport.Tag(),
-				})
-			}
-			return nil, 0
-		}
-		var originTTL int
-		for _, recordList := range [][]dns.RR{response.Answer, response.Ns, response.Extra} {
-			for _, record := range recordList {
-				if originTTL == 0 || record.Header().Ttl > 0 && int(record.Header().Ttl) < originTTL {
-					originTTL = int(record.Header().Ttl)
-				}
-			}
-		}
-		nowTTL := int(expireAt.Sub(timeNow).Seconds())
-		if nowTTL < 0 {
-			nowTTL = 0
-		}
-		response = response.Copy()
-		if originTTL > 0 {
-			duration := uint32(originTTL - nowTTL)
-			for _, recordList := range [][]dns.RR{response.Answer, response.Ns, response.Extra} {
-				for _, record := range recordList {
-					record.Header().Ttl = record.Header().Ttl - duration
-				}
-			}
-		} else {
-			for _, recordList := range [][]dns.RR{response.Answer, response.Ns, response.Extra} {
-				for _, record := range recordList {
-					record.Header().Ttl = uint32(nowTTL)
-				}
-			}
-		}
-		return response, nowTTL
-	}
-}
-
-func MessageToAddresses(response *dns.Msg) ([]netip.Addr, error) {
-	if response.Rcode != dns.RcodeSuccess && response.Rcode != dns.RcodeNameError {
-		return nil, RCodeError(response.Rcode)
-	}
-	addresses := make([]netip.Addr, 0, len(response.Answer))
-	for _, rawAnswer := range response.Answer {
-		switch answer := rawAnswer.(type) {
-		case *dns.A:
-			addresses = append(addresses, M.AddrFromIP(answer.A))
-		case *dns.AAAA:
-			addresses = append(addresses, M.AddrFromIP(answer.AAAA))
-		case *dns.HTTPS:
-			for _, value := range answer.SVCB.Value {
-				if value.Key() == dns.SVCB_IPV4HINT || value.Key() == dns.SVCB_IPV6HINT {
-					addresses = append(addresses, common.Map(strings.Split(value.String(), ","), M.ParseAddr)...)
-				}
-			}
-		}
-	}
-	return addresses, nil
-}
-
-func wrapError(err error) error {
-	switch dnsErr := err.(type) {
-	case *net.DNSError:
-		if dnsErr.IsNotFound {
-			return RCodeNameError
-		}
-	case *net.AddrError:
-		return RCodeNameError
-	}
-	return err
-}
-
-type transportKey struct{}
-
-func contextWithTransportTag(ctx context.Context, transportTag string) context.Context {
-	return context.WithValue(ctx, transportKey{}, transportTag)
-}
-
-func transportTagFromContext(ctx context.Context) (string, bool) {
-	value, loaded := ctx.Value(transportKey{}).(string)
-	return value, loaded
-}
-
-func FixedResponse(id uint16, question dns.Question, addresses []netip.Addr, timeToLive uint32) *dns.Msg {
-	response := dns.Msg{
-		MsgHdr: dns.MsgHdr{
-			Id:       id,
-			Rcode:    dns.RcodeSuccess,
-			Response: true,
-		},
-		Question: []dns.Question{question},
-	}
-	for _, address := range addresses {
-		if address.Is4() {
-			response.Answer = append(response.Answer, &dns.A{
-				Hdr: dns.RR_Header{
-					Name:   question.Name,
-					Rrtype: dns.TypeA,
-					Class:  dns.ClassINET,
-					Ttl:    timeToLive,
-				},
-				A: address.AsSlice(),
-			})
-		} else {
-			response.Answer = append(response.Answer, &dns.AAAA{
-				Hdr: dns.RR_Header{
-					Name:   question.Name,
-					Rrtype: dns.TypeAAAA,
-					Class:  dns.ClassINET,
-					Ttl:    timeToLive,
-				},
-				AAAA: address.AsSlice(),
-			})
-		}
-	}
-	return &response
-}

dns/client_log.go

@@ -1,69 +0,0 @@
-package dns
-
-import (
-	"context"
-	"strings"
-
-	"github.com/sagernet/sing/common/logger"
-
-	"github.com/miekg/dns"
-)
-
-func logCachedResponse(logger logger.ContextLogger, ctx context.Context, response *dns.Msg, ttl int) {
-	if logger == nil || len(response.Question) == 0 {
-		return
-	}
-	domain := FqdnToDomain(response.Question[0].Name)
-	logger.DebugContext(ctx, "cached ", domain, " ", dns.RcodeToString[response.Rcode], " ", ttl)
-	for _, recordList := range [][]dns.RR{response.Answer, response.Ns, response.Extra} {
-		for _, record := range recordList {
-			logger.InfoContext(ctx, "cached ", dns.Type(record.Header().Rrtype).String(), " ", FormatQuestion(record.String()))
-		}
-	}
-}
-
-func logExchangedResponse(logger logger.ContextLogger, ctx context.Context, response *dns.Msg, ttl uint32) {
-	if logger == nil || len(response.Question) == 0 {
-		return
-	}
-	domain := FqdnToDomain(response.Question[0].Name)
-	logger.DebugContext(ctx, "exchanged ", domain, " ", dns.RcodeToString[response.Rcode], " ", ttl)
-	for _, recordList := range [][]dns.RR{response.Answer, response.Ns, response.Extra} {
-		for _, record := range recordList {
-			logger.InfoContext(ctx, "exchanged ", dns.Type(record.Header().Rrtype).String(), " ", FormatQuestion(record.String()))
-		}
-	}
-}
-
-func logRejectedResponse(logger logger.ContextLogger, ctx context.Context, response *dns.Msg) {
-	if logger == nil || len(response.Question) == 0 {
-		return
-	}
-	for _, recordList := range [][]dns.RR{response.Answer, response.Ns, response.Extra} {
-		for _, record := range recordList {
-			logger.InfoContext(ctx, "rejected ", dns.Type(record.Header().Rrtype).String(), " ", FormatQuestion(record.String()))
-		}
-	}
-}
-
-func FqdnToDomain(fqdn string) string {
-	if dns.IsFqdn(fqdn) {
-		return fqdn[:len(fqdn)-1]
-	}
-	return fqdn
-}
-
-func FormatQuestion(string string) string {
-	for strings.HasPrefix(string, ";") {
-		string = string[1:]
-	}
-	string = strings.ReplaceAll(string, "\t", " ")
-	string = strings.ReplaceAll(string, "\n", " ")
-	string = strings.ReplaceAll(string, ";; ", " ")
-	string = strings.ReplaceAll(string, "; ", " ")
-
-	for strings.Contains(string, "  ") {
-		string = strings.ReplaceAll(string, "  ", " ")
-	}
-	return strings.TrimSpace(string)
-}

dns/client_truncate.go

@@ -1,29 +0,0 @@
-package dns
-
-import (
-	"github.com/sagernet/sing/common/buf"
-
-	"github.com/miekg/dns"
-)
-
-func TruncateDNSMessage(request *dns.Msg, response *dns.Msg, headroom int) (*buf.Buffer, error) {
-	maxLen := 512
-	if edns0Option := request.IsEdns0(); edns0Option != nil {
-		if udpSize := int(edns0Option.UDPSize()); udpSize > 512 {
-			maxLen = udpSize
-		}
-	}
-	responseLen := response.Len()
-	if responseLen > maxLen {
-		response.Truncate(maxLen)
-	}
-	buffer := buf.NewSize(headroom*2 + 1 + responseLen)
-	buffer.Resize(headroom, 0)
-	rawMessage, err := response.PackBuffer(buffer.FreeBytes())
-	if err != nil {
-		buffer.Release()
-		return nil, err
-	}
-	buffer.Truncate(len(rawMessage))
-	return buffer, nil
-}

dns/extension_edns0_subnet.go

@@ -1,56 +0,0 @@
-package dns
-
-import (
-	"net/netip"
-
-	"github.com/miekg/dns"
-)
-
-func SetClientSubnet(message *dns.Msg, clientSubnet netip.Prefix, override bool) *dns.Msg {
-	var (
-		optRecord    *dns.OPT
-		subnetOption *dns.EDNS0_SUBNET
-	)
-findExists:
-	for _, record := range message.Extra {
-		var isOPTRecord bool
-		if optRecord, isOPTRecord = record.(*dns.OPT); isOPTRecord {
-			for _, option := range optRecord.Option {
-				var isEDNS0Subnet bool
-				subnetOption, isEDNS0Subnet = option.(*dns.EDNS0_SUBNET)
-				if isEDNS0Subnet {
-					if !override {
-						return message
-					}
-					break findExists
-				}
-			}
-		}
-	}
-	if optRecord == nil {
-		exMessage := *message
-		message = &exMessage
-		optRecord = &dns.OPT{
-			Hdr: dns.RR_Header{
-				Name:   ".",
-				Rrtype: dns.TypeOPT,
-			},
-		}
-		message.Extra = append(message.Extra, optRecord)
-	} else {
-		message = message.Copy()
-	}
-	if subnetOption == nil {
-		subnetOption = new(dns.EDNS0_SUBNET)
-		optRecord.Option = append(optRecord.Option, subnetOption)
-	}
-	subnetOption.Code = dns.EDNS0SUBNET
-	if clientSubnet.Addr().Is4() {
-		subnetOption.Family = 1
-	} else {
-		subnetOption.Family = 2
-	}
-	subnetOption.SourceNetmask = uint8(clientSubnet.Bits())
-	subnetOption.Address = clientSubnet.Addr().AsSlice()
-	return message
-}

dns/rcode.go

@@ -1,33 +0,0 @@
-package dns
-
-import F "github.com/sagernet/sing/common/format"
-
-const (
-	RCodeSuccess        RCodeError = 0 // NoError
-	RCodeFormatError    RCodeError = 1 // FormErr
-	RCodeServerFailure  RCodeError = 2 // ServFail
-	RCodeNameError      RCodeError = 3 // NXDomain
-	RCodeNotImplemented RCodeError = 4 // NotImp
-	RCodeRefused        RCodeError = 5 // Refused
-)
-
-type RCodeError uint16
-
-func (e RCodeError) Error() string {
-	switch e {
-	case RCodeSuccess:
-		return "success"
-	case RCodeFormatError:
-		return "format error"
-	case RCodeServerFailure:
-		return "server failure"
-	case RCodeNameError:
-		return "name error"
-	case RCodeNotImplemented:
-		return "not implemented"
-	case RCodeRefused:
-		return "refused"
-	default:
-		return F.ToString("unknown error: ", uint16(e))
-	}
-}

dns/router.go

@@ -1,437 +0,0 @@
-package dns
-
-import (
-	"context"
-	"errors"
-	"net/netip"
-	"strings"
-	"time"
-
-	"github.com/sagernet/sing-box/adapter"
-	"github.com/sagernet/sing-box/common/taskmonitor"
-	C "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing-box/experimental/libbox/platform"
-	"github.com/sagernet/sing-box/log"
-	"github.com/sagernet/sing-box/option"
-	R "github.com/sagernet/sing-box/route/rule"
-	"github.com/sagernet/sing-tun"
-	"github.com/sagernet/sing/common"
-	E "github.com/sagernet/sing/common/exceptions"
-	F "github.com/sagernet/sing/common/format"
-	"github.com/sagernet/sing/common/logger"
-	M "github.com/sagernet/sing/common/metadata"
-	"github.com/sagernet/sing/contrab/freelru"
-	"github.com/sagernet/sing/contrab/maphash"
-	"github.com/sagernet/sing/service"
-
-	mDNS "github.com/miekg/dns"
-)
-
-var _ adapter.DNSRouter = (*Router)(nil)
-
-type Router struct {
-	ctx                   context.Context
-	logger                logger.ContextLogger
-	transport             adapter.DNSTransportManager
-	outbound              adapter.OutboundManager
-	client                adapter.DNSClient
-	rules                 []adapter.DNSRule
-	defaultDomainStrategy C.DomainStrategy
-	dnsReverseMapping     freelru.Cache[netip.Addr, string]
-	platformInterface     platform.Interface
-}
-
-func NewRouter(ctx context.Context, logFactory log.Factory, options option.DNSOptions) *Router {
-	router := &Router{
-		ctx:                   ctx,
-		logger:                logFactory.NewLogger("dns"),
-		transport:             service.FromContext[adapter.DNSTransportManager](ctx),
-		outbound:              service.FromContext[adapter.OutboundManager](ctx),
-		rules:                 make([]adapter.DNSRule, 0, len(options.Rules)),
-		defaultDomainStrategy: C.DomainStrategy(options.Strategy),
-	}
-	router.client = NewClient(ClientOptions{
-		DisableCache:     options.DNSClientOptions.DisableCache,
-		DisableExpire:    options.DNSClientOptions.DisableExpire,
-		IndependentCache: options.DNSClientOptions.IndependentCache,
-		CacheCapacity:    options.DNSClientOptions.CacheCapacity,
-		RDRC: func() adapter.RDRCStore {
-			cacheFile := service.FromContext[adapter.CacheFile](ctx)
-			if cacheFile == nil {
-				return nil
-			}
-			if !cacheFile.StoreRDRC() {
-				return nil
-			}
-			return cacheFile
-		},
-		Logger: router.logger,
-	})
-	if options.ReverseMapping {
-		router.dnsReverseMapping = common.Must1(freelru.NewSharded[netip.Addr, string](1024, maphash.NewHasher[netip.Addr]().Hash32))
-	}
-	return router
-}
-
-func (r *Router) Initialize(rules []option.DNSRule) error {
-	for i, ruleOptions := range rules {
-		dnsRule, err := R.NewDNSRule(r.ctx, r.logger, ruleOptions, true)
-		if err != nil {
-			return E.Cause(err, "parse dns rule[", i, "]")
-		}
-		r.rules = append(r.rules, dnsRule)
-	}
-	return nil
-}
-
-func (r *Router) Start(stage adapter.StartStage) error {
-	monitor := taskmonitor.New(r.logger, C.StartTimeout)
-	switch stage {
-	case adapter.StartStateStart:
-		monitor.Start("initialize DNS client")
-		r.client.Start()
-		monitor.Finish()
-
-		for i, rule := range r.rules {
-			monitor.Start("initialize DNS rule[", i, "]")
-			err := rule.Start()
-			monitor.Finish()
-			if err != nil {
-				return E.Cause(err, "initialize DNS rule[", i, "]")
-			}
-		}
-	}
-	return nil
-}
-
-func (r *Router) Close() error {
-	monitor := taskmonitor.New(r.logger, C.StopTimeout)
-	var err error
-	for i, rule := range r.rules {
-		monitor.Start("close dns rule[", i, "]")
-		err = E.Append(err, rule.Close(), func(err error) error {
-			return E.Cause(err, "close dns rule[", i, "]")
-		})
-		monitor.Finish()
-	}
-	return err
-}
-
-func (r *Router) matchDNS(ctx context.Context, allowFakeIP bool, ruleIndex int, isAddressQuery bool, options *adapter.DNSQueryOptions) (adapter.DNSTransport, adapter.DNSRule, int) {
-	metadata := adapter.ContextFrom(ctx)
-	if metadata == nil {
-		panic("no context")
-	}
-	var currentRuleIndex int
-	if ruleIndex != -1 {
-		currentRuleIndex = ruleIndex + 1
-	}
-	for ; currentRuleIndex < len(r.rules); currentRuleIndex++ {
-		currentRule := r.rules[currentRuleIndex]
-		if currentRule.WithAddressLimit() && !isAddressQuery {
-			continue
-		}
-		metadata.ResetRuleCache()
-		if currentRule.Match(metadata) {
-			displayRuleIndex := currentRuleIndex
-			if displayRuleIndex != -1 {
-				displayRuleIndex += displayRuleIndex + 1
-			}
-			ruleDescription := currentRule.String()
-			if ruleDescription != "" {
-				r.logger.DebugContext(ctx, "match[", displayRuleIndex, "] ", currentRule, " => ", currentRule.Action())
-			} else {
-				r.logger.DebugContext(ctx, "match[", displayRuleIndex, "] => ", currentRule.Action())
-			}
-			switch action := currentRule.Action().(type) {
-			case *R.RuleActionDNSRoute:
-				transport, loaded := r.transport.Transport(action.Server)
-				if !loaded {
-					r.logger.ErrorContext(ctx, "transport not found: ", action.Server)
-					continue
-				}
-				isFakeIP := transport.Type() == C.DNSTypeFakeIP
-				if isFakeIP && !allowFakeIP {
-					continue
-				}
-				if action.Strategy != C.DomainStrategyAsIS {
-					options.Strategy = action.Strategy
-				}
-				if isFakeIP || action.DisableCache {
-					options.DisableCache = true
-				}
-				if action.RewriteTTL != nil {
-					options.RewriteTTL = action.RewriteTTL
-				}
-				if action.ClientSubnet.IsValid() {
-					options.ClientSubnet = action.ClientSubnet
-				}
-				if legacyTransport, isLegacy := transport.(adapter.LegacyDNSTransport); isLegacy {
-					if options.Strategy == C.DomainStrategyAsIS {
-						options.Strategy = legacyTransport.LegacyStrategy()
-					}
-					if !options.ClientSubnet.IsValid() {
-						options.ClientSubnet = legacyTransport.LegacyClientSubnet()
-					}
-				}
-				r.logger.DebugContext(ctx, "match[", displayRuleIndex, "] => ", currentRule.Action())
-				return transport, currentRule, currentRuleIndex
-			case *R.RuleActionDNSRouteOptions:
-				if action.Strategy != C.DomainStrategyAsIS {
-					options.Strategy = action.Strategy
-				}
-				if action.DisableCache {
-					options.DisableCache = true
-				}
-				if action.RewriteTTL != nil {
-					options.RewriteTTL = action.RewriteTTL
-				}
-				if action.ClientSubnet.IsValid() {
-					options.ClientSubnet = action.ClientSubnet
-				}
-				r.logger.DebugContext(ctx, "match[", displayRuleIndex, "] => ", currentRule.Action())
-			case *R.RuleActionReject:
-				r.logger.DebugContext(ctx, "match[", displayRuleIndex, "] => ", currentRule.Action())
-				return nil, currentRule, currentRuleIndex
-			}
-		}
-	}
-	return r.transport.Default(), nil, -1
-}
-
-func (r *Router) Exchange(ctx context.Context, message *mDNS.Msg, options adapter.DNSQueryOptions) (*mDNS.Msg, error) {
-	if len(message.Question) != 1 {
-		r.logger.WarnContext(ctx, "bad question size: ", len(message.Question))
-		responseMessage := mDNS.Msg{
-			MsgHdr: mDNS.MsgHdr{
-				Id:       message.Id,
-				Response: true,
-				Rcode:    mDNS.RcodeFormatError,
-			},
-			Question: message.Question,
-		}
-		return &responseMessage, nil
-	}
-	r.logger.DebugContext(ctx, "exchange ", FormatQuestion(message.Question[0].String()))
-	var (
-		transport adapter.DNSTransport
-		err       error
-	)
-	response, cached := r.client.ExchangeCache(ctx, message)
-	if !cached {
-		var metadata *adapter.InboundContext
-		ctx, metadata = adapter.ExtendContext(ctx)
-		metadata.Destination = M.Socksaddr{}
-		metadata.QueryType = message.Question[0].Qtype
-		switch metadata.QueryType {
-		case mDNS.TypeA:
-			metadata.IPVersion = 4
-		case mDNS.TypeAAAA:
-			metadata.IPVersion = 6
-		}
-		metadata.Domain = FqdnToDomain(message.Question[0].Name)
-		if options.Transport != nil {
-			transport = options.Transport
-			if legacyTransport, isLegacy := transport.(adapter.LegacyDNSTransport); isLegacy {
-				if options.Strategy == C.DomainStrategyAsIS {
-					options.Strategy = legacyTransport.LegacyStrategy()
-				}
-				if !options.ClientSubnet.IsValid() {
-					options.ClientSubnet = legacyTransport.LegacyClientSubnet()
-				}
-			}
-			if options.Strategy == C.DomainStrategyAsIS {
-				options.Strategy = r.defaultDomainStrategy
-			}
-			response, err = r.client.Exchange(ctx, transport, message, options, nil)
-		} else {
-			var (
-				rule      adapter.DNSRule
-				ruleIndex int
-			)
-			ruleIndex = -1
-			for {
-				dnsCtx := adapter.OverrideContext(ctx)
-				dnsOptions := options
-				transport, rule, ruleIndex = r.matchDNS(ctx, true, ruleIndex, isAddressQuery(message), &dnsOptions)
-				if rule != nil {
-					switch action := rule.Action().(type) {
-					case *R.RuleActionReject:
-						switch action.Method {
-						case C.RuleActionRejectMethodDefault:
-							return FixedResponse(message.Id, message.Question[0], nil, 0), nil
-						case C.RuleActionRejectMethodDrop:
-							return nil, tun.ErrDrop
-						}
-					}
-				}
-				var responseCheck func(responseAddrs []netip.Addr) bool
-				if rule != nil && rule.WithAddressLimit() {
-					responseCheck = func(responseAddrs []netip.Addr) bool {
-						metadata.DestinationAddresses = responseAddrs
-						return rule.MatchAddressLimit(metadata)
-					}
-				}
-				if dnsOptions.Strategy == C.DomainStrategyAsIS {
-					dnsOptions.Strategy = r.defaultDomainStrategy
-				}
-				response, err = r.client.Exchange(dnsCtx, transport, message, dnsOptions, responseCheck)
-				var rejected bool
-				if err != nil {
-					if errors.Is(err, ErrResponseRejectedCached) {
-						rejected = true
-						r.logger.DebugContext(ctx, E.Cause(err, "response rejected for ", FormatQuestion(message.Question[0].String())), " (cached)")
-					} else if errors.Is(err, ErrResponseRejected) {
-						rejected = true
-						r.logger.DebugContext(ctx, E.Cause(err, "response rejected for ", FormatQuestion(message.Question[0].String())))
-					} else if len(message.Question) > 0 {
-						r.logger.ErrorContext(ctx, E.Cause(err, "exchange failed for ", FormatQuestion(message.Question[0].String())))
-					} else {
-						r.logger.ErrorContext(ctx, E.Cause(err, "exchange failed for <empty query>"))
-					}
-				}
-				if responseCheck != nil && rejected {
-					continue
-				}
-				break
-			}
-		}
-	}
-	if err != nil {
-		return nil, err
-	}
-	if r.dnsReverseMapping != nil && len(message.Question) > 0 && response != nil && len(response.Answer) > 0 {
-		if transport.Type() != C.DNSTypeFakeIP {
-			for _, answer := range response.Answer {
-				switch record := answer.(type) {
-				case *mDNS.A:
-					r.dnsReverseMapping.AddWithLifetime(M.AddrFromIP(record.A), FqdnToDomain(record.Hdr.Name), time.Duration(record.Hdr.Ttl)*time.Second)
-				case *mDNS.AAAA:
-					r.dnsReverseMapping.AddWithLifetime(M.AddrFromIP(record.AAAA), FqdnToDomain(record.Hdr.Name), time.Duration(record.Hdr.Ttl)*time.Second)
-				}
-			}
-		}
-	}
-	return response, nil
-}
-
-func (r *Router) Lookup(ctx context.Context, domain string, options adapter.DNSQueryOptions) ([]netip.Addr, error) {
-	var (
-		responseAddrs []netip.Addr
-		cached        bool
-		err           error
-	)
-	printResult := func() {
-		if err != nil {
-			if errors.Is(err, ErrResponseRejectedCached) {
-				r.logger.DebugContext(ctx, "response rejected for ", domain, " (cached)")
-			} else if errors.Is(err, ErrResponseRejected) {
-				r.logger.DebugContext(ctx, "response rejected for ", domain)
-			} else {
-				r.logger.ErrorContext(ctx, E.Cause(err, "lookup failed for ", domain))
-			}
-		} else if len(responseAddrs) == 0 {
-			r.logger.ErrorContext(ctx, "lookup failed for ", domain, ": empty result")
-			err = RCodeNameError
-		}
-	}
-	responseAddrs, cached = r.client.LookupCache(domain, options.Strategy)
-	if cached {
-		if len(responseAddrs) == 0 {
-			return nil, RCodeNameError
-		}
-		return responseAddrs, nil
-	}
-	r.logger.DebugContext(ctx, "lookup domain ", domain)
-	ctx, metadata := adapter.ExtendContext(ctx)
-	metadata.Destination = M.Socksaddr{}
-	metadata.Domain = domain
-	if options.Transport != nil {
-		transport := options.Transport
-		if legacyTransport, isLegacy := transport.(adapter.LegacyDNSTransport); isLegacy {
-			if options.Strategy == C.DomainStrategyAsIS {
-				options.Strategy = r.defaultDomainStrategy
-			}
-			if !options.ClientSubnet.IsValid() {
-				options.ClientSubnet = legacyTransport.LegacyClientSubnet()
-			}
-		}
-		if options.Strategy == C.DomainStrategyAsIS {
-			options.Strategy = r.defaultDomainStrategy
-		}
-		responseAddrs, err = r.client.Lookup(ctx, transport, domain, options, nil)
-	} else {
-		var (
-			transport adapter.DNSTransport
-			rule      adapter.DNSRule
-			ruleIndex int
-		)
-		ruleIndex = -1
-		for {
-			dnsCtx := adapter.OverrideContext(ctx)
-			transport, rule, ruleIndex = r.matchDNS(ctx, false, ruleIndex, true, &options)
-			if rule != nil {
-				switch action := rule.Action().(type) {
-				case *R.RuleActionReject:
-					switch action.Method {
-					case C.RuleActionRejectMethodDefault:
-						return nil, nil
-					case C.RuleActionRejectMethodDrop:
-						return nil, tun.ErrDrop
-					}
-				}
-			}
-			var responseCheck func(responseAddrs []netip.Addr) bool
-			if rule != nil && rule.WithAddressLimit() {
-				responseCheck = func(responseAddrs []netip.Addr) bool {
-					metadata.DestinationAddresses = responseAddrs
-					return rule.MatchAddressLimit(metadata)
-				}
-			}
-			if options.Strategy == C.DomainStrategyAsIS {
-				options.Strategy = r.defaultDomainStrategy
-			}
-			responseAddrs, err = r.client.Lookup(dnsCtx, transport, domain, options, responseCheck)
-			if responseCheck == nil || err == nil {
-				break
-			}
-			printResult()
-		}
-	}
-	printResult()
-	if len(responseAddrs) > 0 {
-		r.logger.InfoContext(ctx, "lookup succeed for ", domain, ": ", strings.Join(F.MapToString(responseAddrs), " "))
-	}
-	return responseAddrs, err
-}
-
-func isAddressQuery(message *mDNS.Msg) bool {
-	for _, question := range message.Question {
-		if question.Qtype == mDNS.TypeA || question.Qtype == mDNS.TypeAAAA || question.Qtype == mDNS.TypeHTTPS {
-			return true
-		}
-	}
-	return false
-}
-
-func (r *Router) ClearCache() {
-	r.client.ClearCache()
-	if r.platformInterface != nil {
-		r.platformInterface.ClearDNSCache()
-	}
-}
-
-func (r *Router) LookupReverseMapping(ip netip.Addr) (string, bool) {
-	if r.dnsReverseMapping == nil {
-		return "", false
-	}
-	domain, loaded := r.dnsReverseMapping.Get(ip)
-	return domain, loaded
-}
-
-func (r *Router) ResetNetwork() {
-	r.ClearCache()
-	for _, transport := range r.transport.Transports() {
-		transport.Reset()
-	}
-}

dns/transport/fakeip/fakeip.go

@@ -1,64 +0,0 @@
-package fakeip
-
-import (
-	"context"
-	"net/netip"
-
-	"github.com/sagernet/sing-box/adapter"
-	C "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing-box/dns"
-	"github.com/sagernet/sing-box/log"
-	"github.com/sagernet/sing-box/option"
-	E "github.com/sagernet/sing/common/exceptions"
-	"github.com/sagernet/sing/common/logger"
-
-	mDNS "github.com/miekg/dns"
-)
-
-func RegisterTransport(registry *dns.TransportRegistry) {
-	dns.RegisterTransport[option.FakeIPDNSServerOptions](registry, C.DNSTypeFakeIP, NewTransport)
-}
-
-var _ adapter.FakeIPTransport = (*Transport)(nil)
-
-type Transport struct {
-	dns.TransportAdapter
-	logger logger.ContextLogger
-	store  adapter.FakeIPStore
-}
-
-func NewTransport(ctx context.Context, logger log.ContextLogger, tag string, options option.FakeIPDNSServerOptions) (adapter.DNSTransport, error) {
-	store := NewStore(ctx, logger, options.Inet4Range.Build(netip.Prefix{}), options.Inet6Range.Build(netip.Prefix{}))
-	return &Transport{
-		TransportAdapter: dns.NewTransportAdapter(C.DNSTypeFakeIP, tag, nil),
-		logger:           logger,
-		store:            store,
-	}, nil
-}
-
-func (t *Transport) Start() error {
-	return t.store.Start()
-}
-
-func (t *Transport) Close() error {
-	return t.store.Close()
-}
-
-func (t *Transport) Reset() {
-}
-
-func (t *Transport) Exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg, error) {
-	question := message.Question[0]
-	if question.Qtype != mDNS.TypeA && question.Qtype != mDNS.TypeAAAA {
-		return nil, E.New("only IP queries are supported by fakeip")
-	}
-	address, err := t.store.Create(question.Name, question.Qtype == mDNS.TypeAAAA)
-	if err != nil {
-		return nil, err
-	}
-	return dns.FixedResponse(message.Id, question, []netip.Addr{address}, C.DefaultDNSTTL), nil
-}
-
-func (t *Transport) Store() adapter.FakeIPStore {
-	return t.store
-}

dns/transport/hosts/hosts.go

@@ -1,63 +0,0 @@
-package hosts
-
-import (
-	"context"
-
-	"github.com/sagernet/sing-box/adapter"
-	C "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing-box/dns"
-	"github.com/sagernet/sing-box/log"
-	"github.com/sagernet/sing-box/option"
-
-	mDNS "github.com/miekg/dns"
-)
-
-func RegisterTransport(registry *dns.TransportRegistry) {
-	dns.RegisterTransport[option.HostsDNSServerOptions](registry, C.DNSTypeHosts, NewTransport)
-}
-
-var _ adapter.DNSTransport = (*Transport)(nil)
-
-type Transport struct {
-	dns.TransportAdapter
-	files []*File
-}
-
-func NewTransport(ctx context.Context, logger log.ContextLogger, tag string, options option.HostsDNSServerOptions) (adapter.DNSTransport, error) {
-	var files []*File
-	if len(options.Path) == 0 {
-		files = append(files, NewFile(DefaultPath))
-	} else {
-		for _, path := range options.Path {
-			files = append(files, NewFile(path))
-		}
-	}
-	return &Transport{
-		TransportAdapter: dns.NewTransportAdapter(C.DNSTypeHosts, tag, nil),
-		files:            files,
-	}, nil
-}
-
-func (t *Transport) Reset() {
-}
-
-func (t *Transport) Exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg, error) {
-	question := message.Question[0]
-	domain := dns.FqdnToDomain(question.Name)
-	if question.Qtype == mDNS.TypeA || question.Qtype == mDNS.TypeAAAA {
-		for _, file := range t.files {
-			addresses := file.Lookup(domain)
-			if len(addresses) > 0 {
-				return dns.FixedResponse(message.Id, question, addresses, C.DefaultDNSTTL), nil
-			}
-		}
-	}
-	return &mDNS.Msg{
-		MsgHdr: mDNS.MsgHdr{
-			Id:       message.Id,
-			Rcode:    mDNS.RcodeNameError,
-			Response: true,
-		},
-		Question: []mDNS.Question{question},
-	}, nil
-}

dns/transport/hosts/hosts_file.go

@@ -1,102 +0,0 @@
-package hosts
-
-import (
-	"bufio"
-	"errors"
-	"io"
-	"net/netip"
-	"os"
-	"strings"
-	"sync"
-	"time"
-
-	"github.com/miekg/dns"
-)
-
-const cacheMaxAge = 5 * time.Second
-
-type File struct {
-	path    string
-	access  sync.Mutex
-	byName  map[string][]netip.Addr
-	expire  time.Time
-	modTime time.Time
-	size    int64
-}
-
-func NewFile(path string) *File {
-	return &File{
-		path: path,
-	}
-}
-
-func (f *File) Lookup(name string) []netip.Addr {
-	f.access.Lock()
-	defer f.access.Unlock()
-	f.update()
-	return f.byName[name]
-}
-
-func (f *File) update() {
-	now := time.Now()
-	if now.Before(f.expire) && len(f.byName) > 0 {
-		return
-	}
-	stat, err := os.Stat(f.path)
-	if err != nil {
-		return
-	}
-	if f.modTime.Equal(stat.ModTime()) && f.size == stat.Size() {
-		f.expire = now.Add(cacheMaxAge)
-		return
-	}
-	byName := make(map[string][]netip.Addr)
-	file, err := os.Open(f.path)
-	if err != nil {
-		return
-	}
-	defer file.Close()
-	reader := bufio.NewReader(file)
-	var (
-		prefix   []byte
-		line     []byte
-		isPrefix bool
-	)
-	for {
-		line, isPrefix, err = reader.ReadLine()
-		if err != nil {
-			if errors.Is(err, io.EOF) {
-				break
-			}
-			return
-		}
-		if isPrefix {
-			prefix = append(prefix, line...)
-			continue
-		} else if len(prefix) > 0 {
-			line = append(prefix, line...)
-			prefix = nil
-		}
-		commentIndex := strings.IndexRune(string(line), '#')
-		if commentIndex != -1 {
-			line = line[:commentIndex]
-		}
-		fields := strings.Fields(string(line))
-		if len(fields) < 2 {
-			continue
-		}
-		var addr netip.Addr
-		addr, err = netip.ParseAddr(fields[0])
-		if err != nil {
-			continue
-		}
-		for index := 1; index < len(fields); index++ {
-			canonicalName := dns.CanonicalName(fields[index])
-			byName[canonicalName] = append(byName[canonicalName], addr)
-		}
-	}
-	f.expire = now.Add(cacheMaxAge)
-	f.modTime = stat.ModTime()
-	f.size = stat.Size()
-	f.byName = byName
-}

dns/transport/hosts/hosts_test.go

@@ -1,16 +0,0 @@
-package hosts_test
-
-import (
-	"net/netip"
-	"testing"
-
-	"github.com/sagernet/sing-box/dns/transport/hosts"
-
-	"github.com/stretchr/testify/require"
-)
-
-func TestHosts(t *testing.T) {
-	t.Parallel()
-	require.Equal(t, []netip.Addr{netip.AddrFrom4([4]byte{127, 0, 0, 1}), netip.IPv6Loopback()}, hosts.NewFile("testdata/hosts").Lookup("localhost."))
-	require.NotEmpty(t, hosts.NewFile(hosts.DefaultPath).Lookup("localhost."))
-}

dns/transport/hosts/hosts_unix.go

@@ -1,5 +0,0 @@
-//go:build !windows
-
-package hosts
-
-var DefaultPath = "/etc/hosts"

dns/transport/hosts/hosts_windows.go

@@ -1,17 +0,0 @@
-package hosts
-
-import (
-	"path/filepath"
-
-	"golang.org/x/sys/windows"
-)
-
-var DefaultPath string
-
-func init() {
-	systemDirectory, err := windows.GetSystemDirectory()
-	if err != nil {
-		systemDirectory = "C:\\Windows\\System32"
-	}
-	DefaultPath = filepath.Join(systemDirectory, "Drivers/etc/hosts")
-}

dns/transport/hosts/testdata/hosts

@@ -1,2 +0,0 @@
-127.0.0.1       localhost
-::1             localhost

dns/transport/https.go

@@ -1,204 +0,0 @@
-package transport
-
-import (
-	"bytes"
-	"context"
-	"io"
-	"net"
-	"net/http"
-	"net/url"
-	"strconv"
-
-	"github.com/sagernet/sing-box/adapter"
-	"github.com/sagernet/sing-box/common/tls"
-	C "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing-box/dns"
-	"github.com/sagernet/sing-box/log"
-	"github.com/sagernet/sing-box/option"
-	"github.com/sagernet/sing/common"
-	"github.com/sagernet/sing/common/buf"
-	E "github.com/sagernet/sing/common/exceptions"
-	"github.com/sagernet/sing/common/logger"
-	M "github.com/sagernet/sing/common/metadata"
-	N "github.com/sagernet/sing/common/network"
-	aTLS "github.com/sagernet/sing/common/tls"
-	sHTTP "github.com/sagernet/sing/protocol/http"
-
-	mDNS "github.com/miekg/dns"
-	"golang.org/x/net/http2"
-)
-
-const MimeType = "application/dns-message"
-
-var _ adapter.DNSTransport = (*HTTPSTransport)(nil)
-
-func RegisterHTTPS(registry *dns.TransportRegistry) {
-	dns.RegisterTransport[option.RemoteHTTPSDNSServerOptions](registry, C.DNSTypeHTTPS, NewHTTPS)
-}
-
-type HTTPSTransport struct {
-	dns.TransportAdapter
-	logger      logger.ContextLogger
-	dialer      N.Dialer
-	destination *url.URL
-	headers     http.Header
-	transport   *http.Transport
-}
-
-func NewHTTPS(ctx context.Context, logger log.ContextLogger, tag string, options option.RemoteHTTPSDNSServerOptions) (adapter.DNSTransport, error) {
-	transportDialer, err := dns.NewRemoteDialer(ctx, options.RemoteDNSServerOptions)
-	if err != nil {
-		return nil, err
-	}
-	tlsOptions := common.PtrValueOrDefault(options.TLS)
-	tlsOptions.Enabled = true
-	tlsConfig, err := tls.NewClient(ctx, options.Server, tlsOptions)
-	if err != nil {
-		return nil, err
-	}
-	if common.Error(tlsConfig.Config()) == nil && !common.Contains(tlsConfig.NextProtos(), http2.NextProtoTLS) {
-		tlsConfig.SetNextProtos(append(tlsConfig.NextProtos(), http2.NextProtoTLS))
-	}
-	if !common.Contains(tlsConfig.NextProtos(), "http/1.1") {
-		tlsConfig.SetNextProtos(append(tlsConfig.NextProtos(), "http/1.1"))
-	}
-	headers := options.Headers.Build()
-	host := headers.Get("Host")
-	if host != "" {
-		headers.Del("Host")
-	} else {
-		if tlsConfig.ServerName() != "" {
-			host = tlsConfig.ServerName()
-		} else {
-			host = options.Server
-		}
-	}
-	destinationURL := url.URL{
-		Scheme: "https",
-		Host:   host,
-	}
-	if destinationURL.Host == "" {
-		destinationURL.Host = options.Server
-	}
-	if options.ServerPort != 0 && options.ServerPort != 443 {
-		destinationURL.Host = net.JoinHostPort(destinationURL.Host, strconv.Itoa(int(options.ServerPort)))
-	}
-	path := options.Path
-	if path == "" {
-		path = "/dns-query"
-	}
-	err = sHTTP.URLSetPath(&destinationURL, path)
-	if err != nil {
-		return nil, err
-	}
-	serverAddr := options.ServerOptions.Build()
-	if serverAddr.Port == 0 {
-		serverAddr.Port = 443
-	}
-	return NewHTTPSRaw(
-		dns.NewTransportAdapterWithRemoteOptions(C.DNSTypeHTTPS, tag, options.RemoteDNSServerOptions),
-		logger,
-		transportDialer,
-		&destinationURL,
-		headers,
-		serverAddr,
-		tlsConfig,
-	), nil
-}
-
-func NewHTTPSRaw(
-	adapter dns.TransportAdapter,
-	logger log.ContextLogger,
-	dialer N.Dialer,
-	destination *url.URL,
-	headers http.Header,
-	serverAddr M.Socksaddr,
-	tlsConfig tls.Config,
-) *HTTPSTransport {
-	var transport *http.Transport
-	if tlsConfig != nil {
-		transport = &http.Transport{
-			ForceAttemptHTTP2: true,
-			DialTLSContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
-				tcpConn, hErr := dialer.DialContext(ctx, network, serverAddr)
-				if hErr != nil {
-					return nil, hErr
-				}
-				tlsConn, hErr := aTLS.ClientHandshake(ctx, tcpConn, tlsConfig)
-				if hErr != nil {
-					tcpConn.Close()
-					return nil, hErr
-				}
-				return tlsConn, nil
-			},
-		}
-	} else {
-		transport = &http.Transport{
-			DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
-				return dialer.DialContext(ctx, network, serverAddr)
-			},
-		}
-	}
-	return &HTTPSTransport{
-		TransportAdapter: adapter,
-		logger:           logger,
-		dialer:           dialer,
-		destination:      destination,
-		headers:          headers,
-		transport:        transport,
-	}
-}
-
-func (t *HTTPSTransport) Reset() {
-	t.transport.CloseIdleConnections()
-	t.transport = t.transport.Clone()
-}
-
-func (t *HTTPSTransport) Exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg, error) {
-	exMessage := *message
-	exMessage.Id = 0
-	exMessage.Compress = true
-	requestBuffer := buf.NewSize(1 + message.Len())
-	rawMessage, err := exMessage.PackBuffer(requestBuffer.FreeBytes())
-	if err != nil {
-		requestBuffer.Release()
-		return nil, err
-	}
-	request, err := http.NewRequestWithContext(ctx, http.MethodPost, t.destination.String(), bytes.NewReader(rawMessage))
-	if err != nil {
-		requestBuffer.Release()
-		return nil, err
-	}
-	request.Header = t.headers.Clone()
-	request.Header.Set("Content-Type", MimeType)
-	request.Header.Set("Accept", MimeType)
-	response, err := t.transport.RoundTrip(request)
-	requestBuffer.Release()
-	if err != nil {
-		return nil, err
-	}
-	defer response.Body.Close()
-	if response.StatusCode != http.StatusOK {
-		return nil, E.New("unexpected status: ", response.Status)
-	}
-	var responseMessage mDNS.Msg
-	if response.ContentLength > 0 {
-		responseBuffer := buf.NewSize(int(response.ContentLength))
-		_, err = responseBuffer.ReadFullFrom(response.Body, int(response.ContentLength))
-		if err != nil {
-			return nil, err
-		}
-		err = responseMessage.Unpack(responseBuffer.Bytes())
-		responseBuffer.Release()
-	} else {
-		rawMessage, err = io.ReadAll(response.Body)
-		if err != nil {
-			return nil, err
-		}
-		err = responseMessage.Unpack(rawMessage)
-	}
-	if err != nil {
-		return nil, err
-	}
-	return &responseMessage, nil
-}

dns/transport/local/local.go

@@ -1,195 +0,0 @@
-package local
-
-import (
-	"context"
-	"math/rand"
-	"time"
-
-	"github.com/sagernet/sing-box/adapter"
-	C "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing-box/dns"
-	"github.com/sagernet/sing-box/dns/transport/hosts"
-	"github.com/sagernet/sing-box/log"
-	"github.com/sagernet/sing-box/option"
-	"github.com/sagernet/sing/common/buf"
-	E "github.com/sagernet/sing/common/exceptions"
-	M "github.com/sagernet/sing/common/metadata"
-	N "github.com/sagernet/sing/common/network"
-
-	mDNS "github.com/miekg/dns"
-)
-
-func RegisterTransport(registry *dns.TransportRegistry) {
-	dns.RegisterTransport[option.LocalDNSServerOptions](registry, C.DNSTypeLocal, NewTransport)
-}
-
-var _ adapter.DNSTransport = (*Transport)(nil)
-
-type Transport struct {
-	dns.TransportAdapter
-	hosts  *hosts.File
-	dialer N.Dialer
-}
-
-func NewTransport(ctx context.Context, logger log.ContextLogger, tag string, options option.LocalDNSServerOptions) (adapter.DNSTransport, error) {
-	transportDialer, err := dns.NewLocalDialer(ctx, options)
-	if err != nil {
-		return nil, err
-	}
-	return &Transport{
-		TransportAdapter: dns.NewTransportAdapterWithLocalOptions(C.DNSTypeLocal, tag, options),
-		hosts:            hosts.NewFile(hosts.DefaultPath),
-		dialer:           transportDialer,
-	}, nil
-}
-
-func (t *Transport) Reset() {
-}
-
-func (t *Transport) Exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg, error) {
-	question := message.Question[0]
-	domain := dns.FqdnToDomain(question.Name)
-	if question.Qtype == mDNS.TypeA || question.Qtype == mDNS.TypeAAAA {
-		addresses := t.hosts.Lookup(domain)
-		if len(addresses) > 0 {
-			return dns.FixedResponse(message.Id, question, addresses, C.DefaultDNSTTL), nil
-		}
-	}
-	systemConfig := getSystemDNSConfig()
-	if systemConfig.singleRequest || !(message.Question[0].Qtype == mDNS.TypeA || message.Question[0].Qtype == mDNS.TypeAAAA) {
-		return t.exchangeSingleRequest(ctx, systemConfig, message, domain)
-	} else {
-		return t.exchangeParallel(ctx, systemConfig, message, domain)
-	}
-}
-
-func (t *Transport) exchangeSingleRequest(ctx context.Context, systemConfig *dnsConfig, message *mDNS.Msg, domain string) (*mDNS.Msg, error) {
-	var lastErr error
-	for _, fqdn := range systemConfig.nameList(domain) {
-		response, err := t.tryOneName(ctx, systemConfig, fqdn, message)
-		if err != nil {
-			lastErr = err
-			continue
-		}
-		return response, nil
-	}
-	return nil, lastErr
-}
-
-func (t *Transport) exchangeParallel(ctx context.Context, systemConfig *dnsConfig, message *mDNS.Msg, domain string) (*mDNS.Msg, error) {
-	returned := make(chan struct{})
-	defer close(returned)
-	type queryResult struct {
-		response *mDNS.Msg
-		err      error
-	}
-	results := make(chan queryResult)
-	startRacer := func(ctx context.Context, fqdn string) {
-		response, err := t.tryOneName(ctx, systemConfig, fqdn, message)
-		addresses, _ := dns.MessageToAddresses(response)
-		if len(addresses) == 0 {
-			err = E.New(fqdn, ": empty result")
-		}
-		select {
-		case results <- queryResult{response, err}:
-		case <-returned:
-		}
-	}
-	queryCtx, queryCancel := context.WithCancel(ctx)
-	defer queryCancel()
-	var nameCount int
-	for _, fqdn := range systemConfig.nameList(domain) {
-		nameCount++
-		go startRacer(queryCtx, fqdn)
-	}
-	var errors []error
-	for {
-		select {
-		case <-ctx.Done():
-			return nil, ctx.Err()
-		case result := <-results:
-			if result.err == nil {
-				return result.response, nil
-			}
-			errors = append(errors, result.err)
-			if len(errors) == nameCount {
-				return nil, E.Errors(errors...)
-			}
-		}
-	}
-}
-
-func (t *Transport) tryOneName(ctx context.Context, config *dnsConfig, fqdn string, message *mDNS.Msg) (*mDNS.Msg, error) {
-	serverOffset := config.serverOffset()
-	sLen := uint32(len(config.servers))
-	var lastErr error
-	for i := 0; i < config.attempts; i++ {
-		for j := uint32(0); j < sLen; j++ {
-			server := config.servers[(serverOffset+j)%sLen]
-			question := message.Question[0]
-			question.Name = fqdn
-			response, err := t.exchangeOne(ctx, M.ParseSocksaddr(server), question, config.timeout, config.useTCP, config.trustAD)
-			if err != nil {
-				lastErr = err
-				continue
-			}
-			return response, nil
-		}
-	}
-	return nil, E.Cause(lastErr, fqdn)
-}
-
-func (t *Transport) exchangeOne(ctx context.Context, server M.Socksaddr, question mDNS.Question, timeout time.Duration, useTCP, ad bool) (*mDNS.Msg, error) {
-	var networks []string
-	if useTCP {
-		networks = []string{N.NetworkTCP}
-	} else {
-		networks = []string{N.NetworkUDP, N.NetworkTCP}
-	}
-	request := &mDNS.Msg{
-		MsgHdr: mDNS.MsgHdr{
-			Id:                uint16(rand.Uint32()),
-			RecursionDesired:  true,
-			AuthenticatedData: ad,
-		},
-		Question: []mDNS.Question{question},
-		Compress: true,
-	}
-	request.SetEdns0(maxDNSPacketSize, false)
-	buffer := buf.Get(buf.UDPBufferSize)
-	defer buf.Put(buffer)
-	for _, network := range networks {
-		ctx, cancel := context.WithDeadline(ctx, time.Now().Add(timeout))
-		defer cancel()
-		conn, err := t.dialer.DialContext(ctx, network, server)
-		if err != nil {
-			return nil, err
-		}
-		defer conn.Close()
-		if deadline, loaded := ctx.Deadline(); loaded && !deadline.IsZero() {
-			conn.SetDeadline(deadline)
-		}
-		rawMessage, err := request.PackBuffer(buffer)
-		if err != nil {
-			return nil, E.Cause(err, "pack request")
-		}
-		_, err = conn.Write(rawMessage)
-		if err != nil {
-			return nil, E.Cause(err, "write request")
-		}
-		n, err := conn.Read(buffer)
-		if err != nil {
-			return nil, E.Cause(err, "read response")
-		}
-		var response mDNS.Msg
-		err = response.Unpack(buffer[:n])
-		if err != nil {
-			return nil, E.Cause(err, "unpack response")
-		}
-		if response.Truncated && network == N.NetworkUDP {
-			continue
-		}
-		return &response, nil
-	}
-	panic("unexpected")
-}

dns/transport/local/resolv.go

@@ -1,146 +0,0 @@
-package local
-
-import (
-	"os"
-	"runtime"
-	"strings"
-	"sync"
-	"sync/atomic"
-	"time"
-)
-
-const (
-	// net.maxDNSPacketSize
-	maxDNSPacketSize = 1232
-)
-
-type resolverConfig struct {
-	initOnce    sync.Once
-	ch          chan struct{}
-	lastChecked time.Time
-	dnsConfig   atomic.Pointer[dnsConfig]
-}
-
-var resolvConf resolverConfig
-
-func getSystemDNSConfig() *dnsConfig {
-	resolvConf.tryUpdate("/etc/resolv.conf")
-	return resolvConf.dnsConfig.Load()
-}
-
-func (conf *resolverConfig) init() {
-	conf.dnsConfig.Store(dnsReadConfig("/etc/resolv.conf"))
-	conf.lastChecked = time.Now()
-	conf.ch = make(chan struct{}, 1)
-}
-
-func (conf *resolverConfig) tryUpdate(name string) {
-	conf.initOnce.Do(conf.init)
-
-	if conf.dnsConfig.Load().noReload {
-		return
-	}
-	if !conf.tryAcquireSema() {
-		return
-	}
-	defer conf.releaseSema()
-
-	now := time.Now()
-	if conf.lastChecked.After(now.Add(-5 * time.Second)) {
-		return
-	}
-	conf.lastChecked = now
-	if runtime.GOOS != "windows" {
-		var mtime time.Time
-		if fi, err := os.Stat(name); err == nil {
-			mtime = fi.ModTime()
-		}
-		if mtime.Equal(conf.dnsConfig.Load().mtime) {
-			return
-		}
-	}
-	dnsConf := dnsReadConfig(name)
-	conf.dnsConfig.Store(dnsConf)
-}
-
-func (conf *resolverConfig) tryAcquireSema() bool {
-	select {
-	case conf.ch <- struct{}{}:
-		return true
-	default:
-		return false
-	}
-}
-
-func (conf *resolverConfig) releaseSema() {
-	<-conf.ch
-}
-
-type dnsConfig struct {
-	servers       []string
-	search        []string
-	ndots         int
-	timeout       time.Duration
-	attempts      int
-	rotate        bool
-	unknownOpt    bool
-	lookup        []string
-	err           error
-	mtime         time.Time
-	soffset       uint32
-	singleRequest bool
-	useTCP        bool
-	trustAD       bool
-	noReload      bool
-}
-
-func (c *dnsConfig) serverOffset() uint32 {
-	if c.rotate {
-		return atomic.AddUint32(&c.soffset, 1) - 1 // return 0 to start
-	}
-	return 0
-}
-
-func (conf *dnsConfig) nameList(name string) []string {
-	l := len(name)
-	rooted := l > 0 && name[l-1] == '.'
-	if l > 254 || l == 254 && !rooted {
-		return nil
-	}
-
-	if rooted {
-		if avoidDNS(name) {
-			return nil
-		}
-		return []string{name}
-	}
-
-	hasNdots := strings.Count(name, ".") >= conf.ndots
-	name += "."
-	// l++
-
-	names := make([]string, 0, 1+len(conf.search))
-	if hasNdots && !avoidDNS(name) {
-		names = append(names, name)
-	}
-	for _, suffix := range conf.search {
-		fqdn := name + suffix
-		if !avoidDNS(fqdn) && len(fqdn) <= 254 {
-			names = append(names, fqdn)
-		}
-	}
-	if !hasNdots && !avoidDNS(name) {
-		names = append(names, name)
-	}
-	return names
-}
-
-func avoidDNS(name string) bool {
-	if name == "" {
-		return true
-	}
-	if name[len(name)-1] == '.' {
-		name = name[:len(name)-1]
-	}
-	return strings.HasSuffix(name, ".onion")
-}

dns/transport/local/resolv_unix.go

@@ -1,175 +0,0 @@
-//go:build !windows
-
-package local
-
-import (
-	"bufio"
-	"net"
-	"net/netip"
-	"os"
-	"strings"
-	"time"
-	_ "unsafe"
-)
-
-func dnsReadConfig(name string) *dnsConfig {
-	conf := &dnsConfig{
-		ndots:    1,
-		timeout:  5 * time.Second,
-		attempts: 2,
-	}
-	file, err := os.Open(name)
-	if err != nil {
-		conf.servers = defaultNS
-		conf.search = dnsDefaultSearch()
-		conf.err = err
-		return conf
-	}
-	defer file.Close()
-	fi, err := file.Stat()
-	if err == nil {
-		conf.mtime = fi.ModTime()
-	} else {
-		conf.servers = defaultNS
-		conf.search = dnsDefaultSearch()
-		conf.err = err
-		return conf
-	}
-	reader := bufio.NewReader(file)
-	var (
-		prefix   []byte
-		line     []byte
-		isPrefix bool
-	)
-	for {
-		line, isPrefix, err = reader.ReadLine()
-		if err != nil {
-			break
-		}
-		if isPrefix {
-			prefix = append(prefix, line...)
-			continue
-		} else if len(prefix) > 0 {
-			line = append(prefix, line...)
-			prefix = nil
-		}
-		if len(line) > 0 && (line[0] == ';' || line[0] == '#') {
-			continue
-		}
-		f := strings.Fields(string(line))
-		if len(f) < 1 {
-			continue
-		}
-		switch f[0] {
-		case "nameserver":
-			if len(f) > 1 && len(conf.servers) < 3 {
-				if _, err := netip.ParseAddr(f[1]); err == nil {
-					conf.servers = append(conf.servers, net.JoinHostPort(f[1], "53"))
-				}
-			}
-		case "domain":
-			if len(f) > 1 {
-				conf.search = []string{ensureRooted(f[1])}
-			}
-
-		case "search":
-			conf.search = make([]string, 0, len(f)-1)
-			for i := 1; i < len(f); i++ {
-				name := ensureRooted(f[i])
-				if name == "." {
-					continue
-				}
-				conf.search = append(conf.search, name)
-			}
-
-		case "options":
-			for _, s := range f[1:] {
-				switch {
-				case strings.HasPrefix(s, "ndots:"):
-					n, _, _ := dtoi(s[6:])
-					if n < 0 {
-						n = 0
-					} else if n > 15 {
-						n = 15
-					}
-					conf.ndots = n
-				case strings.HasPrefix(s, "timeout:"):
-					n, _, _ := dtoi(s[8:])
-					if n < 1 {
-						n = 1
-					}
-					conf.timeout = time.Duration(n) * time.Second
-				case strings.HasPrefix(s, "attempts:"):
-					n, _, _ := dtoi(s[9:])
-					if n < 1 {
-						n = 1
-					}
-					conf.attempts = n
-				case s == "rotate":
-					conf.rotate = true
-				case s == "single-request" || s == "single-request-reopen":
-					conf.singleRequest = true
-				case s == "use-vc" || s == "usevc" || s == "tcp":
-					conf.useTCP = true
-				case s == "trust-ad":
-					conf.trustAD = true
-				case s == "edns0":
-				case s == "no-reload":
-					conf.noReload = true
-				default:
-					conf.unknownOpt = true
-				}
-			}
-
-		case "lookup":
-			conf.lookup = f[1:]
-
-		default:
-			conf.unknownOpt = true
-		}
-	}
-	if len(conf.servers) == 0 {
-		conf.servers = defaultNS
-	}
-	if len(conf.search) == 0 {
-		conf.search = dnsDefaultSearch()
-	}
-	return conf
-}
-
-//go:linkname defaultNS net.defaultNS
-var defaultNS []string
-
-func dnsDefaultSearch() []string {
-	hn, err := os.Hostname()
-	if err != nil {
-		return nil
-	}
-	if i := strings.IndexRune(hn, '.'); i >= 0 && i < len(hn)-1 {
-		return []string{ensureRooted(hn[i+1:])}
-	}
-	return nil
-}
-
-func ensureRooted(s string) string {
-	if len(s) > 0 && s[len(s)-1] == '.' {
-		return s
-	}
-	return s + "."
-}
-
-const big = 0xFFFFFF
-
-func dtoi(s string) (n int, i int, ok bool) {
-	n = 0
-	for i = 0; i < len(s) && '0' <= s[i] && s[i] <= '9'; i++ {
-		n = n*10 + int(s[i]-'0')
-		if n >= big {
-			return big, i, false
-		}
-	}
-	if i == 0 {
-		return 0, 0, false
-	}
-	return n, i, true
-}

dns/transport/local/resolv_windows.go

@@ -1,100 +0,0 @@
-package local
-
-import (
-	"net"
-	"net/netip"
-	"os"
-	"syscall"
-	"time"
-	"unsafe"
-
-	"golang.org/x/sys/windows"
-)
-
-func dnsReadConfig(_ string) *dnsConfig {
-	conf := &dnsConfig{
-		ndots:    1,
-		timeout:  5 * time.Second,
-		attempts: 2,
-	}
-	defer func() {
-		if len(conf.servers) == 0 {
-			conf.servers = defaultNS
-		}
-	}()
-	aas, err := adapterAddresses()
-	if err != nil {
-		return nil
-	}
-
-	for _, aa := range aas {
-		// Only take interfaces whose OperStatus is IfOperStatusUp(0x01) into DNS configs.
-		if aa.OperStatus != windows.IfOperStatusUp {
-			continue
-		}
-
-		// Only take interfaces which have at least one gateway
-		if aa.FirstGatewayAddress == nil {
-			continue
-		}
-
-		for dns := aa.FirstDnsServerAddress; dns != nil; dns = dns.Next {
-			sa, err := dns.Address.Sockaddr.Sockaddr()
-			if err != nil {
-				continue
-			}
-			var ip netip.Addr
-			switch sa := sa.(type) {
-			case *syscall.SockaddrInet4:
-				ip = netip.AddrFrom4([4]byte{sa.Addr[0], sa.Addr[1], sa.Addr[2], sa.Addr[3]})
-			case *syscall.SockaddrInet6:
-				var addr16 [16]byte
-				copy(addr16[:], sa.Addr[:])
-				if addr16[0] == 0xfe && addr16[1] == 0xc0 {
-					// fec0/10 IPv6 addresses are site local anycast DNS
-					// addresses Microsoft sets by default if no other
-					// IPv6 DNS address is set. Site local anycast is
-					// deprecated since 2004, see
-					// https://datatracker.ietf.org/doc/html/rfc3879
-					continue
-				}
-				ip = netip.AddrFrom16(addr16)
-			default:
-				// Unexpected type.
-				continue
-			}
-			conf.servers = append(conf.servers, net.JoinHostPort(ip.String(), "53"))
-		}
-	}
-	return conf
-}
-
-//go:linkname defaultNS net.defaultNS
-var defaultNS []string
-
-func adapterAddresses() ([]*windows.IpAdapterAddresses, error) {
-	var b []byte
-	l := uint32(15000) // recommended initial size
-	for {
-		b = make([]byte, l)
-		const flags = windows.GAA_FLAG_INCLUDE_PREFIX | windows.GAA_FLAG_INCLUDE_GATEWAYS
-		err := windows.GetAdaptersAddresses(syscall.AF_UNSPEC, flags, 0, (*windows.IpAdapterAddresses)(unsafe.Pointer(&b[0])), &l)
-		if err == nil {
-			if l == 0 {
-				return nil, nil
-			}
-			break
-		}
-		if err.(syscall.Errno) != syscall.ERROR_BUFFER_OVERFLOW {
-			return nil, os.NewSyscallError("getadaptersaddresses", err)
-		}
-		if l <= uint32(len(b)) {
-			return nil, os.NewSyscallError("getadaptersaddresses", err)
-		}
-	}
-	var aas []*windows.IpAdapterAddresses
-	for aa := (*windows.IpAdapterAddresses)(unsafe.Pointer(&b[0])); aa != nil; aa = aa.Next {
-		aas = append(aas, aa)
-	}
-	return aas, nil
-}

dns/transport/predefined.go

@@ -1,82 +0,0 @@
-package transport
-
-import (
-	"context"
-
-	"github.com/sagernet/sing-box/adapter"
-	C "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing-box/dns"
-	"github.com/sagernet/sing-box/log"
-	"github.com/sagernet/sing-box/option"
-	"github.com/sagernet/sing/common"
-	E "github.com/sagernet/sing/common/exceptions"
-
-	mDNS "github.com/miekg/dns"
-)
-
-var _ adapter.DNSTransport = (*PredefinedTransport)(nil)
-
-func RegisterPredefined(registry *dns.TransportRegistry) {
-	dns.RegisterTransport[option.PredefinedDNSServerOptions](registry, C.DNSTypePreDefined, NewPredefined)
-}
-
-type PredefinedTransport struct {
-	dns.TransportAdapter
-	responses []*predefinedResponse
-}
-
-type predefinedResponse struct {
-	questions []mDNS.Question
-	answer    *mDNS.Msg
-}
-
-func NewPredefined(ctx context.Context, logger log.ContextLogger, tag string, options option.PredefinedDNSServerOptions) (adapter.DNSTransport, error) {
-	var responses []*predefinedResponse
-	for _, response := range options.Responses {
-		questions, msg, err := response.Build()
-		if err != nil {
-			return nil, err
-		}
-		responses = append(responses, &predefinedResponse{
-			questions: questions,
-			answer:    msg,
-		})
-	}
-	if len(responses) == 0 {
-		return nil, E.New("empty predefined responses")
-	}
-	return &PredefinedTransport{
-		TransportAdapter: dns.NewTransportAdapter(C.DNSTypePreDefined, tag, nil),
-		responses:        responses,
-	}, nil
-}
-
-func (t *PredefinedTransport) Reset() {
-}
-
-func (t *PredefinedTransport) Exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg, error) {
-	for _, response := range t.responses {
-		for _, question := range response.questions {
-			if func() bool {
-				if question.Name == "" && question.Qtype == mDNS.TypeNone {
-					return true
-				} else if question.Name == "" {
-					return common.Any(message.Question, func(it mDNS.Question) bool {
-						return it.Qtype == question.Qtype
-					})
-				} else if question.Qtype == mDNS.TypeNone {
-					return common.Any(message.Question, func(it mDNS.Question) bool {
-						return it.Name == question.Name
-					})
-				} else {
-					return common.Contains(message.Question, question)
-				}
-			}() {
-				copyAnswer := *response.answer
-				copyAnswer.Id = message.Id
-				return &copyAnswer, nil
-			}
-		}
-	}
-	return nil, dns.RCodeNameError
-}

dns/transport/quic/http3.go

@@ -1,167 +0,0 @@
-package quic
-
-import (
-	"bytes"
-	"context"
-	"io"
-	"net"
-	"net/http"
-	"net/url"
-	"strconv"
-
-	"github.com/sagernet/quic-go"
-	"github.com/sagernet/quic-go/http3"
-	"github.com/sagernet/sing-box/adapter"
-	"github.com/sagernet/sing-box/common/tls"
-	C "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing-box/dns"
-	"github.com/sagernet/sing-box/dns/transport"
-	"github.com/sagernet/sing-box/log"
-	"github.com/sagernet/sing-box/option"
-	"github.com/sagernet/sing/common"
-	"github.com/sagernet/sing/common/buf"
-	"github.com/sagernet/sing/common/bufio"
-	E "github.com/sagernet/sing/common/exceptions"
-	"github.com/sagernet/sing/common/logger"
-	M "github.com/sagernet/sing/common/metadata"
-	N "github.com/sagernet/sing/common/network"
-	sHTTP "github.com/sagernet/sing/protocol/http"
-
-	mDNS "github.com/miekg/dns"
-)
-
-var _ adapter.DNSTransport = (*HTTP3Transport)(nil)
-
-func RegisterHTTP3Transport(registry *dns.TransportRegistry) {
-	dns.RegisterTransport[option.RemoteHTTPSDNSServerOptions](registry, C.DNSTypeHTTP3, NewHTTP3)
-}
-
-type HTTP3Transport struct {
-	dns.TransportAdapter
-	logger      logger.ContextLogger
-	dialer      N.Dialer
-	destination *url.URL
-	headers     http.Header
-	transport   *http3.Transport
-}
-
-func NewHTTP3(ctx context.Context, logger log.ContextLogger, tag string, options option.RemoteHTTPSDNSServerOptions) (adapter.DNSTransport, error) {
-	transportDialer, err := dns.NewRemoteDialer(ctx, options.RemoteDNSServerOptions)
-	if err != nil {
-		return nil, err
-	}
-	tlsOptions := common.PtrValueOrDefault(options.TLS)
-	tlsOptions.Enabled = true
-	tlsConfig, err := tls.NewClient(ctx, options.Server, tlsOptions)
-	if err != nil {
-		return nil, err
-	}
-	stdConfig, err := tlsConfig.Config()
-	if err != nil {
-		return nil, err
-	}
-	headers := options.Headers.Build()
-	host := headers.Get("Host")
-	if host != "" {
-		headers.Del("Host")
-	} else {
-		if tlsConfig.ServerName() != "" {
-			host = tlsConfig.ServerName()
-		} else {
-			host = options.Server
-		}
-	}
-	destinationURL := url.URL{
-		Scheme: "HTTP3",
-		Host:   host,
-	}
-	if destinationURL.Host == "" {
-		destinationURL.Host = options.Server
-	}
-	if options.ServerPort != 0 && options.ServerPort != 443 {
-		destinationURL.Host = net.JoinHostPort(destinationURL.Host, strconv.Itoa(int(options.ServerPort)))
-	}
-	path := options.Path
-	if path == "" {
-		path = "/dns-query"
-	}
-	err = sHTTP.URLSetPath(&destinationURL, path)
-	if err != nil {
-		return nil, err
-	}
-	serverAddr := options.ServerOptions.Build()
-	if serverAddr.Port == 0 {
-		serverAddr.Port = 443
-	}
-	return &HTTP3Transport{
-		TransportAdapter: dns.NewTransportAdapterWithRemoteOptions(C.DNSTypeHTTP3, tag, options.RemoteDNSServerOptions),
-		logger:           logger,
-		dialer:           transportDialer,
-		destination:      &destinationURL,
-		headers:          headers,
-		transport: &http3.Transport{
-			Dial: func(ctx context.Context, addr string, tlsCfg *tls.STDConfig, cfg *quic.Config) (quic.EarlyConnection, error) {
-				destinationAddr := M.ParseSocksaddr(addr)
-				conn, dialErr := transportDialer.DialContext(ctx, N.NetworkUDP, destinationAddr)
-				if dialErr != nil {
-					return nil, dialErr
-				}
-				return quic.DialEarly(ctx, bufio.NewUnbindPacketConn(conn), conn.RemoteAddr(), tlsCfg, cfg)
-			},
-			TLSClientConfig: stdConfig,
-		},
-	}, nil
-}
-
-func (t *HTTP3Transport) Reset() {
-	t.transport.Close()
-}
-
-func (t *HTTP3Transport) Exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg, error) {
-	exMessage := *message
-	exMessage.Id = 0
-	exMessage.Compress = true
-	requestBuffer := buf.NewSize(1 + message.Len())
-	rawMessage, err := exMessage.PackBuffer(requestBuffer.FreeBytes())
-	if err != nil {
-		requestBuffer.Release()
-		return nil, err
-	}
-	request, err := http.NewRequestWithContext(ctx, http.MethodPost, t.destination.String(), bytes.NewReader(rawMessage))
-	if err != nil {
-		requestBuffer.Release()
-		return nil, err
-	}
-	request.Header = t.headers.Clone()
-	request.Header.Set("Content-Type", transport.MimeType)
-	request.Header.Set("Accept", transport.MimeType)
-	response, err := t.transport.RoundTrip(request)
-	requestBuffer.Release()
-	if err != nil {
-		return nil, err
-	}
-	defer response.Body.Close()
-	if response.StatusCode != http.StatusOK {
-		return nil, E.New("unexpected status: ", response.Status)
-	}
-	var responseMessage mDNS.Msg
-	if response.ContentLength > 0 {
-		responseBuffer := buf.NewSize(int(response.ContentLength))
-		_, err = responseBuffer.ReadFullFrom(response.Body, int(response.ContentLength))
-		if err != nil {
-			return nil, err
-		}
-		err = responseMessage.Unpack(responseBuffer.Bytes())
-		responseBuffer.Release()
-	} else {
-		rawMessage, err = io.ReadAll(response.Body)
-		if err != nil {
-			return nil, err
-		}
-		err = responseMessage.Unpack(rawMessage)
-	}
-	if err != nil {
-		return nil, err
-	}
-	return &responseMessage, nil
-}

dns/transport/quic/quic.go

@@ -1,174 +0,0 @@
-package quic
-
-import (
-	"context"
-	"errors"
-	"sync"
-
-	"github.com/sagernet/quic-go"
-	"github.com/sagernet/sing-box/adapter"
-	"github.com/sagernet/sing-box/common/tls"
-	C "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing-box/dns"
-	"github.com/sagernet/sing-box/dns/transport"
-	"github.com/sagernet/sing-box/log"
-	"github.com/sagernet/sing-box/option"
-	sQUIC "github.com/sagernet/sing-quic"
-	"github.com/sagernet/sing/common"
-	"github.com/sagernet/sing/common/bufio"
-	"github.com/sagernet/sing/common/logger"
-	M "github.com/sagernet/sing/common/metadata"
-	N "github.com/sagernet/sing/common/network"
-
-	mDNS "github.com/miekg/dns"
-)
-
-var _ adapter.DNSTransport = (*Transport)(nil)
-
-func RegisterTransport(registry *dns.TransportRegistry) {
-	dns.RegisterTransport[option.RemoteTLSDNSServerOptions](registry, C.DNSTypeQUIC, NewQUIC)
-}
-
-type Transport struct {
-	dns.TransportAdapter
-	ctx        context.Context
-	logger     logger.ContextLogger
-	dialer     N.Dialer
-	serverAddr M.Socksaddr
-	tlsConfig  tls.Config
-	access     sync.Mutex
-	connection quic.EarlyConnection
-}
-
-func NewQUIC(ctx context.Context, logger log.ContextLogger, tag string, options option.RemoteTLSDNSServerOptions) (adapter.DNSTransport, error) {
-	transportDialer, err := dns.NewRemoteDialer(ctx, options.RemoteDNSServerOptions)
-	if err != nil {
-		return nil, err
-	}
-	tlsOptions := common.PtrValueOrDefault(options.TLS)
-	tlsOptions.Enabled = true
-	tlsConfig, err := tls.NewClient(ctx, options.Server, tlsOptions)
-	if err != nil {
-		return nil, err
-	}
-	if len(tlsConfig.NextProtos()) == 0 {
-		tlsConfig.SetNextProtos([]string{"doq"})
-	}
-	serverAddr := options.ServerOptions.Build()
-	if serverAddr.Port == 0 {
-		serverAddr.Port = 853
-	}
-	return &Transport{
-		TransportAdapter: dns.NewTransportAdapterWithRemoteOptions(C.DNSTypeQUIC, tag, options.RemoteDNSServerOptions),
-		ctx:              ctx,
-		logger:           logger,
-		dialer:           transportDialer,
-		serverAddr:       serverAddr,
-		tlsConfig:        tlsConfig,
-	}, nil
-}
-
-func (t *Transport) Reset() {
-	t.access.Lock()
-	defer t.access.Unlock()
-	connection := t.connection
-	if connection != nil {
-		connection.CloseWithError(0, "")
-	}
-}
-
-func (t *Transport) Exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg, error) {
-	var (
-		conn     quic.Connection
-		err      error
-		response *mDNS.Msg
-	)
-	for i := 0; i < 2; i++ {
-		conn, err = t.openConnection()
-		if err != nil {
-			return nil, err
-		}
-		response, err = t.exchange(ctx, message, conn)
-		if err == nil {
-			return response, nil
-		} else if !isQUICRetryError(err) {
-			return nil, err
-		} else {
-			conn.CloseWithError(quic.ApplicationErrorCode(0), "")
-			continue
-		}
-	}
-	return nil, err
-}
-
-func (t *Transport) openConnection() (quic.EarlyConnection, error) {
-	connection := t.connection
-	if connection != nil && !common.Done(connection.Context()) {
-		return connection, nil
-	}
-	t.access.Lock()
-	defer t.access.Unlock()
-	connection = t.connection
-	if connection != nil && !common.Done(connection.Context()) {
-		return connection, nil
-	}
-	conn, err := t.dialer.DialContext(t.ctx, N.NetworkUDP, t.serverAddr)
-	if err != nil {
-		return nil, err
-	}
-	earlyConnection, err := sQUIC.DialEarly(
-		t.ctx,
-		bufio.NewUnbindPacketConn(conn),
-		t.serverAddr.UDPAddr(),
-		t.tlsConfig,
-		nil,
-	)
-	if err != nil {
-		return nil, err
-	}
-	t.connection = earlyConnection
-	return earlyConnection, nil
-}
-
-func (t *Transport) exchange(ctx context.Context, message *mDNS.Msg, conn quic.Connection) (*mDNS.Msg, error) {
-	stream, err := conn.OpenStreamSync(ctx)
-	if err != nil {
-		return nil, err
-	}
-	defer stream.Close()
-	defer stream.CancelRead(0)
-	err = transport.WriteMessage(stream, 0, message)
-	if err != nil {
-		return nil, err
-	}
-	return transport.ReadMessage(stream)
-}
-
-// https://github.com/AdguardTeam/dnsproxy/blob/fd1868577652c639cce3da00e12ca548f421baf1/upstream/upstream_quic.go#L394
-func isQUICRetryError(err error) (ok bool) {
-	var qAppErr *quic.ApplicationError
-	if errors.As(err, &qAppErr) && qAppErr.ErrorCode == 0 {
-		return true
-	}
-
-	var qIdleErr *quic.IdleTimeoutError
-	if errors.As(err, &qIdleErr) {
-		return true
-	}
-
-	var resetErr *quic.StatelessResetError
-	if errors.As(err, &resetErr) {
-		return true
-	}
-
-	var qTransportError *quic.TransportError
-	if errors.As(err, &qTransportError) && qTransportError.ErrorCode == quic.NoError {
-		return true
-	}
-
-	if errors.Is(err, quic.Err0RTTRejected) {
-		return true
-	}
-
-	return false
-}

dns/transport/tcp.go

@@ -1,99 +0,0 @@
-package transport
-
-import (
-	"context"
-	"encoding/binary"
-	"io"
-
-	"github.com/sagernet/sing-box/adapter"
-	C "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing-box/dns"
-	"github.com/sagernet/sing-box/log"
-	"github.com/sagernet/sing-box/option"
-	"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"
-
-	mDNS "github.com/miekg/dns"
-)
-
-var _ adapter.DNSTransport = (*TCPTransport)(nil)
-
-func RegisterTCP(registry *dns.TransportRegistry) {
-	dns.RegisterTransport[option.RemoteDNSServerOptions](registry, C.DNSTypeTCP, NewTCP)
-}
-
-type TCPTransport struct {
-	dns.TransportAdapter
-	dialer     N.Dialer
-	serverAddr M.Socksaddr
-}
-
-func NewTCP(ctx context.Context, logger log.ContextLogger, tag string, options option.RemoteDNSServerOptions) (adapter.DNSTransport, error) {
-	transportDialer, err := dns.NewRemoteDialer(ctx, options)
-	if err != nil {
-		return nil, err
-	}
-	serverAddr := options.ServerOptions.Build()
-	if serverAddr.Port == 0 {
-		serverAddr.Port = 53
-	}
-	return &TCPTransport{
-		TransportAdapter: dns.NewTransportAdapterWithRemoteOptions(C.DNSTypeTCP, tag, options),
-		dialer:           transportDialer,
-		serverAddr:       serverAddr,
-	}, nil
-}
-
-func (t *TCPTransport) Reset() {
-}
-
-func (t *TCPTransport) Exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg, error) {
-	conn, err := t.dialer.DialContext(ctx, N.NetworkTCP, t.serverAddr)
-	if err != nil {
-		return nil, err
-	}
-	defer conn.Close()
-	err = WriteMessage(conn, 0, message)
-	if err != nil {
-		return nil, err
-	}
-	return ReadMessage(conn)
-}
-
-func ReadMessage(reader io.Reader) (*mDNS.Msg, error) {
-	var responseLen uint16
-	err := binary.Read(reader, binary.BigEndian, &responseLen)
-	if err != nil {
-		return nil, err
-	}
-	if responseLen < 10 {
-		return nil, mDNS.ErrShortRead
-	}
-	buffer := buf.NewSize(int(responseLen))
-	defer buffer.Release()
-	_, err = buffer.ReadFullFrom(reader, int(responseLen))
-	if err != nil {
-		return nil, err
-	}
-	var message mDNS.Msg
-	err = message.Unpack(buffer.Bytes())
-	return &message, err
-}
-
-func WriteMessage(writer io.Writer, messageId uint16, message *mDNS.Msg) error {
-	requestLen := message.Len()
-	buffer := buf.NewSize(3 + requestLen)
-	defer buffer.Release()
-	common.Must(binary.Write(buffer, binary.BigEndian, uint16(requestLen)))
-	exMessage := *message
-	exMessage.Id = messageId
-	exMessage.Compress = true
-	rawMessage, err := exMessage.PackBuffer(buffer.FreeBytes())
-	if err != nil {
-		return err
-	}
-	buffer.Truncate(2 + len(rawMessage))
-	return common.Error(writer.Write(buffer.Bytes()))
-}

dns/transport/tls.go

@@ -1,115 +0,0 @@
-package transport
-
-import (
-	"context"
-	"sync"
-
-	"github.com/sagernet/sing-box/adapter"
-	"github.com/sagernet/sing-box/common/tls"
-	C "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing-box/dns"
-	"github.com/sagernet/sing-box/log"
-	"github.com/sagernet/sing-box/option"
-	"github.com/sagernet/sing/common"
-	E "github.com/sagernet/sing/common/exceptions"
-	"github.com/sagernet/sing/common/logger"
-	M "github.com/sagernet/sing/common/metadata"
-	N "github.com/sagernet/sing/common/network"
-	"github.com/sagernet/sing/common/x/list"
-
-	mDNS "github.com/miekg/dns"
-)
-
-var _ adapter.DNSTransport = (*TLSTransport)(nil)
-
-func RegisterTLS(registry *dns.TransportRegistry) {
-	dns.RegisterTransport[option.RemoteTLSDNSServerOptions](registry, C.DNSTypeTLS, NewTLS)
-}
-
-type TLSTransport struct {
-	dns.TransportAdapter
-	logger      logger.ContextLogger
-	dialer      N.Dialer
-	serverAddr  M.Socksaddr
-	tlsConfig   tls.Config
-	access      sync.Mutex
-	connections list.List[*tlsDNSConn]
-}
-
-type tlsDNSConn struct {
-	tls.Conn
-	queryId uint16
-}
-
-func NewTLS(ctx context.Context, logger log.ContextLogger, tag string, options option.RemoteTLSDNSServerOptions) (adapter.DNSTransport, error) {
-	transportDialer, err := dns.NewRemoteDialer(ctx, options.RemoteDNSServerOptions)
-	if err != nil {
-		return nil, err
-	}
-	tlsOptions := common.PtrValueOrDefault(options.TLS)
-	tlsOptions.Enabled = true
-	tlsConfig, err := tls.NewClient(ctx, options.Server, tlsOptions)
-	if err != nil {
-		return nil, err
-	}
-	serverAddr := options.ServerOptions.Build()
-	if serverAddr.Port == 0 {
-		serverAddr.Port = 853
-	}
-	return &TLSTransport{
-		TransportAdapter: dns.NewTransportAdapterWithRemoteOptions(C.DNSTypeTLS, tag, options.RemoteDNSServerOptions),
-		logger:           logger,
-		dialer:           transportDialer,
-		serverAddr:       serverAddr,
-		tlsConfig:        tlsConfig,
-	}, nil
-}
-
-func (t *TLSTransport) Reset() {
-	t.access.Lock()
-	defer t.access.Unlock()
-	for connection := t.connections.Front(); connection != nil; connection = connection.Next() {
-		connection.Value.Close()
-	}
-	t.connections.Init()
-}
-
-func (t *TLSTransport) Exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg, error) {
-	t.access.Lock()
-	conn := t.connections.PopFront()
-	t.access.Unlock()
-	if conn != nil {
-		response, err := t.exchange(message, conn)
-		if err == nil {
-			return response, nil
-		}
-	}
-	tcpConn, err := t.dialer.DialContext(ctx, N.NetworkTCP, t.serverAddr)
-	if err != nil {
-		return nil, err
-	}
-	tlsConn, err := tls.ClientHandshake(ctx, tcpConn, t.tlsConfig)
-	if err != nil {
-		tcpConn.Close()
-		return nil, err
-	}
-	return t.exchange(message, &tlsDNSConn{Conn: tlsConn})
-}
-
-func (t *TLSTransport) exchange(message *mDNS.Msg, conn *tlsDNSConn) (*mDNS.Msg, error) {
-	conn.queryId++
-	err := WriteMessage(conn, conn.queryId, message)
-	if err != nil {
-		conn.Close()
-		return nil, E.Cause(err, "write request")
-	}
-	response, err := ReadMessage(conn)
-	if err != nil {
-		conn.Close()
-		return nil, E.Cause(err, "read response")
-	}
-	t.access.Lock()
-	t.connections.PushBack(conn)
-	t.access.Unlock()
-	return response, nil
-}

dns/transport/udp.go

@@ -1,217 +0,0 @@
-package transport
-
-import (
-	"context"
-	"net"
-	"os"
-	"sync"
-
-	"github.com/sagernet/sing-box/adapter"
-	C "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing-box/dns"
-	"github.com/sagernet/sing-box/log"
-	"github.com/sagernet/sing-box/option"
-	"github.com/sagernet/sing/common/buf"
-	"github.com/sagernet/sing/common/logger"
-	M "github.com/sagernet/sing/common/metadata"
-	N "github.com/sagernet/sing/common/network"
-
-	mDNS "github.com/miekg/dns"
-)
-
-var _ adapter.DNSTransport = (*UDPTransport)(nil)
-
-func RegisterUDP(registry *dns.TransportRegistry) {
-	dns.RegisterTransport[option.RemoteDNSServerOptions](registry, C.DNSTypeUDP, NewUDP)
-}
-
-type UDPTransport struct {
-	dns.TransportAdapter
-	logger       logger.ContextLogger
-	dialer       N.Dialer
-	serverAddr   M.Socksaddr
-	udpSize      int
-	tcpTransport *TCPTransport
-	access       sync.Mutex
-	conn         *dnsConnection
-	done         chan struct{}
-}
-
-func NewUDP(ctx context.Context, logger log.ContextLogger, tag string, options option.RemoteDNSServerOptions) (adapter.DNSTransport, error) {
-	transportDialer, err := dns.NewRemoteDialer(ctx, options)
-	if err != nil {
-		return nil, err
-	}
-	serverAddr := options.ServerOptions.Build()
-	if serverAddr.Port == 0 {
-		serverAddr.Port = 53
-	}
-	return NewUDPRaw(logger, dns.NewTransportAdapterWithRemoteOptions(C.DNSTypeUDP, tag, options), transportDialer, serverAddr), nil
-}
-
-func NewUDPRaw(logger logger.ContextLogger, adapter dns.TransportAdapter, dialer N.Dialer, serverAddr M.Socksaddr) *UDPTransport {
-	return &UDPTransport{
-		TransportAdapter: adapter,
-		logger:           logger,
-		dialer:           dialer,
-		serverAddr:       serverAddr,
-		udpSize:          512,
-		tcpTransport: &TCPTransport{
-			dialer:     dialer,
-			serverAddr: serverAddr,
-		},
-		done: make(chan struct{}),
-	}
-}
-
-func (t *UDPTransport) Reset() {
-	t.access.Lock()
-	defer t.access.Unlock()
-	close(t.done)
-	t.done = make(chan struct{})
-}
-
-func (t *UDPTransport) Exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg, error) {
-	response, err := t.exchange(ctx, message)
-	if err != nil {
-		return nil, err
-	}
-	if response.Truncated {
-		t.logger.InfoContext(ctx, "response truncated, retrying with TCP")
-		return t.tcpTransport.Exchange(ctx, message)
-	}
-	return response, nil
-}
-
-func (t *UDPTransport) exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg, error) {
-	conn, err := t.open(ctx)
-	if err != nil {
-		return nil, err
-	}
-	if edns0Opt := message.IsEdns0(); edns0Opt != nil {
-		if udpSize := int(edns0Opt.UDPSize()); udpSize > t.udpSize {
-			t.udpSize = udpSize
-		}
-	}
-	buffer := buf.NewSize(1 + message.Len())
-	defer buffer.Release()
-	exMessage := *message
-	exMessage.Compress = true
-	messageId := message.Id
-	callback := &dnsCallback{
-		done: make(chan struct{}),
-	}
-	conn.access.Lock()
-	conn.queryId++
-	exMessage.Id = conn.queryId
-	conn.callbacks[exMessage.Id] = callback
-	conn.access.Unlock()
-	defer func() {
-		conn.access.Lock()
-		delete(conn.callbacks, messageId)
-		conn.access.Unlock()
-		callback.access.Lock()
-		select {
-		case <-callback.done:
-		default:
-			close(callback.done)
-		}
-		callback.access.Unlock()
-	}()
-	rawMessage, err := exMessage.PackBuffer(buffer.FreeBytes())
-	if err != nil {
-		return nil, err
-	}
-	_, err = conn.Write(rawMessage)
-	if err != nil {
-		conn.Close(err)
-		return nil, err
-	}
-	select {
-	case <-callback.done:
-		callback.message.Id = messageId
-		return callback.message, nil
-	case <-conn.done:
-		return nil, conn.err
-	case <-t.done:
-		return nil, os.ErrClosed
-	case <-ctx.Done():
-		conn.Close(ctx.Err())
-		return nil, ctx.Err()
-	}
-}
-
-func (t *UDPTransport) open(ctx context.Context) (*dnsConnection, error) {
-	t.access.Lock()
-	defer t.access.Unlock()
-	conn, err := t.dialer.DialContext(ctx, N.NetworkUDP, t.serverAddr)
-	if err != nil {
-		return nil, err
-	}
-	dnsConn := &dnsConnection{
-		Conn:      conn,
-		done:      make(chan struct{}),
-		callbacks: make(map[uint16]*dnsCallback),
-	}
-	go t.recvLoop(dnsConn)
-	return dnsConn, nil
-}
-
-func (t *UDPTransport) recvLoop(conn *dnsConnection) {
-	for {
-		buffer := buf.NewSize(t.udpSize)
-		_, err := buffer.ReadOnceFrom(conn)
-		if err != nil {
-			buffer.Release()
-			conn.Close(err)
-			return
-		}
-		var message mDNS.Msg
-		err = message.Unpack(buffer.Bytes())
-		buffer.Release()
-		if err != nil {
-			conn.Close(err)
-			return
-		}
-		conn.access.RLock()
-		callback, loaded := conn.callbacks[message.Id]
-		conn.access.RUnlock()
-		if !loaded {
-			continue
-		}
-		callback.access.Lock()
-		select {
-		case <-callback.done:
-		default:
-			callback.message = &message
-			close(callback.done)
-		}
-		callback.access.Unlock()
-	}
-}
-
-type dnsConnection struct {
-	net.Conn
-	access    sync.RWMutex
-	done      chan struct{}
-	closeOnce sync.Once
-	err       error
-	queryId   uint16
-	callbacks map[uint16]*dnsCallback
-}
-
-func (c *dnsConnection) Close(err error) {
-	c.access.Lock()
-	defer c.access.Unlock()
-	c.closeOnce.Do(func() {
-		close(c.done)
-		c.err = err
-	})
-	c.Conn.Close()
-}
-
-type dnsCallback struct {
-	access  sync.Mutex
-	message *mDNS.Msg
-	done    chan struct{}
-}

dns/transport_adapter.go

@@ -1,78 +0,0 @@
-package dns
-
-import (
-	"net/netip"
-
-	"github.com/sagernet/sing-box/adapter"
-	C "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing-box/option"
-)
-
-var _ adapter.LegacyDNSTransport = (*TransportAdapter)(nil)
-
-type TransportAdapter struct {
-	transportType string
-	transportTag  string
-	dependencies  []string
-	strategy      C.DomainStrategy
-	clientSubnet  netip.Prefix
-}
-
-func NewTransportAdapter(transportType string, transportTag string, dependencies []string) TransportAdapter {
-	return TransportAdapter{
-		transportType: transportType,
-		transportTag:  transportTag,
-		dependencies:  dependencies,
-	}
-}
-
-func NewTransportAdapterWithLocalOptions(transportType string, transportTag string, localOptions option.LocalDNSServerOptions) TransportAdapter {
-	var dependencies []string
-	if localOptions.DomainResolver != nil && localOptions.DomainResolver.Server != "" {
-		dependencies = append(dependencies, localOptions.DomainResolver.Server)
-	}
-	return TransportAdapter{
-		transportType: transportType,
-		transportTag:  transportTag,
-		dependencies:  dependencies,
-		strategy:      C.DomainStrategy(localOptions.LegacyStrategy),
-		clientSubnet:  localOptions.LegacyClientSubnet,
-	}
-}
-
-func NewTransportAdapterWithRemoteOptions(transportType string, transportTag string, remoteOptions option.RemoteDNSServerOptions) TransportAdapter {
-	var dependencies []string
-	if remoteOptions.DomainResolver != nil && remoteOptions.DomainResolver.Server != "" {
-		dependencies = append(dependencies, remoteOptions.DomainResolver.Server)
-	}
-	if remoteOptions.LegacyAddressResolver != "" {
-		dependencies = append(dependencies, remoteOptions.LegacyAddressResolver)
-	}
-	return TransportAdapter{
-		transportType: transportType,
-		transportTag:  transportTag,
-		dependencies:  dependencies,
-		strategy:      C.DomainStrategy(remoteOptions.LegacyStrategy),
-		clientSubnet:  remoteOptions.LegacyClientSubnet,
-	}
-}
-
-func (a *TransportAdapter) Type() string {
-	return a.transportType
-}
-
-func (a *TransportAdapter) Tag() string {
-	return a.transportTag
-}
-
-func (a *TransportAdapter) Dependencies() []string {
-	return a.dependencies
-}
-
-func (a *TransportAdapter) LegacyStrategy() C.DomainStrategy {
-	return a.strategy
-}
-
-func (a *TransportAdapter) LegacyClientSubnet() netip.Prefix {
-	return a.clientSubnet
-}