Bump version

The TTL computation and assignment loops treat OPT record's Hdr.Ttl
as a regular TTL, but per RFC 6891 it encodes EDNS0 metadata
(ExtRCode|Version|Flags). This corrupts cached responses causing
systemd-resolved to reject them with EDNS version 255.

Also fix pointer aliasing: storeCache() stored raw *dns.Msg pointer
so subsequent mutations by Exchange() corrupted cached data.

- Skip OPT records in all TTL loops (Exchange + loadResponse)
- Use message.Copy() in storeCache() to isolate cache from mutations

.fpm_openwrt

@@ -14,6 +14,7 @@
 --depends kmod-inet-diag
 --depends kmod-tun
 --depends firewall4
+--depends kmod-nft-queue
 
 --before-remove release/config/openwrt.prerm
 

.fpm_pacman

@@ -0,0 +1,23 @@
+-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>"
+--config-files etc/sing-box/config.json
+--after-install release/config/sing-box.postinst
+
+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/config/sing-box.sysusers=/usr/lib/sysusers.d/sing-box.conf
+release/config/sing-box.rules=usr/share/polkit-1/rules.d/sing-box.rules
+release/config/sing-box-split-dns.xml=/usr/share/dbus-1/system.d/sing-box-split-dns.conf
+
+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

@@ -4,6 +4,7 @@
 --license GPL-3.0-or-later
 --description "The universal proxy platform."
 --url "https://sing-box.sagernet.org/"
+--vendor SagerNet
 --maintainer "nekohasekai <contact-git@sekai.icu>"
 --deb-field "Bug: https://github.com/SagerNet/sing-box/issues"
 --no-deb-generate-changes

.github/CRONET_GO_VERSION

@@ -0,0 +1 @@
+2fef65f9dba90ddb89a87d00a6eb6165487c10c1

.github/build_alpine_apk.sh

@@ -0,0 +1,81 @@
+#!/usr/bin/env bash
+
+set -e -o pipefail
+
+ARCHITECTURE="$1"
+VERSION="$2"
+BINARY_PATH="$3"
+OUTPUT_PATH="$4"
+
+if [ -z "$ARCHITECTURE" ] || [ -z "$VERSION" ] || [ -z "$BINARY_PATH" ] || [ -z "$OUTPUT_PATH" ]; then
+  echo "Usage: $0 <architecture> <version> <binary_path> <output_path>"
+  exit 1
+fi
+
+PROJECT=$(cd "$(dirname "$0")/.."; pwd)
+
+# Convert version to APK format:
+#   1.13.0-beta.8  -> 1.13.0_beta8-r0
+#   1.13.0-rc.3    -> 1.13.0_rc3-r0
+#   1.13.0         -> 1.13.0-r0
+APK_VERSION=$(echo "$VERSION" | sed -E 's/-([a-z]+)\.([0-9]+)/_\1\2/')
+APK_VERSION="${APK_VERSION}-r0"
+
+ROOT_DIR=$(mktemp -d)
+trap 'rm -rf "$ROOT_DIR"' EXIT
+
+# Binary
+install -Dm755 "$BINARY_PATH" "$ROOT_DIR/usr/bin/sing-box"
+
+# Config files
+install -Dm644 "$PROJECT/release/config/config.json" "$ROOT_DIR/etc/sing-box/config.json"
+install -Dm755 "$PROJECT/release/config/sing-box.initd" "$ROOT_DIR/etc/init.d/sing-box"
+install -Dm644 "$PROJECT/release/config/sing-box.confd" "$ROOT_DIR/etc/conf.d/sing-box"
+
+# Service files
+install -Dm644 "$PROJECT/release/config/sing-box.service" "$ROOT_DIR/usr/lib/systemd/system/sing-box.service"
+install -Dm644 "$PROJECT/release/config/sing-box@.service" "$ROOT_DIR/usr/lib/systemd/system/sing-box@.service"
+
+# Completions
+install -Dm644 "$PROJECT/release/completions/sing-box.bash" "$ROOT_DIR/usr/share/bash-completion/completions/sing-box.bash"
+install -Dm644 "$PROJECT/release/completions/sing-box.fish" "$ROOT_DIR/usr/share/fish/vendor_completions.d/sing-box.fish"
+install -Dm644 "$PROJECT/release/completions/sing-box.zsh" "$ROOT_DIR/usr/share/zsh/site-functions/_sing-box"
+
+# License
+install -Dm644 "$PROJECT/LICENSE" "$ROOT_DIR/usr/share/licenses/sing-box/LICENSE"
+
+# APK metadata
+PACKAGES_DIR="$ROOT_DIR/lib/apk/packages"
+mkdir -p "$PACKAGES_DIR"
+
+# .conffiles
+cat > "$PACKAGES_DIR/.conffiles" <<'EOF'
+/etc/conf.d/sing-box
+/etc/init.d/sing-box
+/etc/sing-box/config.json
+EOF
+
+# .conffiles_static (sha256 checksums)
+while IFS= read -r conffile; do
+  sha256=$(sha256sum "$ROOT_DIR$conffile" | cut -d' ' -f1)
+  echo "$conffile $sha256"
+done < "$PACKAGES_DIR/.conffiles" > "$PACKAGES_DIR/.conffiles_static"
+
+# .list (all files, excluding lib/apk/packages/ metadata)
+(cd "$ROOT_DIR" && find . -type f -o -type l) \
+  | sed 's|^\./|/|' \
+  | grep -v '^/lib/apk/packages/' \
+  | sort > "$PACKAGES_DIR/.list"
+
+# Build APK
+apk mkpkg \
+  --info "name:sing-box" \
+  --info "version:${APK_VERSION}" \
+  --info "description:The universal proxy platform." \
+  --info "arch:${ARCHITECTURE}" \
+  --info "license:GPL-3.0-or-later with name use or association addition" \
+  --info "origin:sing-box" \
+  --info "url:https://sing-box.sagernet.org/" \
+  --info "maintainer:nekohasekai <contact-git@sekai.icu>" \
+  --files "$ROOT_DIR" \
+  --output "$OUTPUT_PATH"

.github/build_openwrt_apk.sh

@@ -0,0 +1,80 @@
+#!/usr/bin/env bash
+
+set -e -o pipefail
+
+ARCHITECTURE="$1"
+VERSION="$2"
+BINARY_PATH="$3"
+OUTPUT_PATH="$4"
+
+if [ -z "$ARCHITECTURE" ] || [ -z "$VERSION" ] || [ -z "$BINARY_PATH" ] || [ -z "$OUTPUT_PATH" ]; then
+  echo "Usage: $0 <architecture> <version> <binary_path> <output_path>"
+  exit 1
+fi
+
+PROJECT=$(cd "$(dirname "$0")/.."; pwd)
+
+# Convert version to APK format:
+#   1.13.0-beta.8  -> 1.13.0_beta8-r0
+#   1.13.0-rc.3    -> 1.13.0_rc3-r0
+#   1.13.0         -> 1.13.0-r0
+APK_VERSION=$(echo "$VERSION" | sed -E 's/-([a-z]+)\.([0-9]+)/_\1\2/')
+APK_VERSION="${APK_VERSION}-r0"
+
+ROOT_DIR=$(mktemp -d)
+trap 'rm -rf "$ROOT_DIR"' EXIT
+
+# Binary
+install -Dm755 "$BINARY_PATH" "$ROOT_DIR/usr/bin/sing-box"
+
+# Config files
+install -Dm644 "$PROJECT/release/config/config.json" "$ROOT_DIR/etc/sing-box/config.json"
+install -Dm644 "$PROJECT/release/config/openwrt.conf" "$ROOT_DIR/etc/config/sing-box"
+install -Dm755 "$PROJECT/release/config/openwrt.init" "$ROOT_DIR/etc/init.d/sing-box"
+install -Dm644 "$PROJECT/release/config/openwrt.keep" "$ROOT_DIR/lib/upgrade/keep.d/sing-box"
+
+# Completions
+install -Dm644 "$PROJECT/release/completions/sing-box.bash" "$ROOT_DIR/usr/share/bash-completion/completions/sing-box.bash"
+install -Dm644 "$PROJECT/release/completions/sing-box.fish" "$ROOT_DIR/usr/share/fish/vendor_completions.d/sing-box.fish"
+install -Dm644 "$PROJECT/release/completions/sing-box.zsh" "$ROOT_DIR/usr/share/zsh/site-functions/_sing-box"
+
+# License
+install -Dm644 "$PROJECT/LICENSE" "$ROOT_DIR/usr/share/licenses/sing-box/LICENSE"
+
+# APK metadata
+PACKAGES_DIR="$ROOT_DIR/lib/apk/packages"
+mkdir -p "$PACKAGES_DIR"
+
+# .conffiles
+cat > "$PACKAGES_DIR/.conffiles" <<'EOF'
+/etc/config/sing-box
+/etc/sing-box/config.json
+EOF
+
+# .conffiles_static (sha256 checksums)
+while IFS= read -r conffile; do
+  sha256=$(sha256sum "$ROOT_DIR$conffile" | cut -d' ' -f1)
+  echo "$conffile $sha256"
+done < "$PACKAGES_DIR/.conffiles" > "$PACKAGES_DIR/.conffiles_static"
+
+# .list (all files, excluding lib/apk/packages/ metadata)
+(cd "$ROOT_DIR" && find . -type f -o -type l) \
+  | sed 's|^\./|/|' \
+  | grep -v '^/lib/apk/packages/' \
+  | sort > "$PACKAGES_DIR/.list"
+
+# Build APK
+apk mkpkg \
+  --info "name:sing-box" \
+  --info "version:${APK_VERSION}" \
+  --info "description:The universal proxy platform." \
+  --info "arch:${ARCHITECTURE}" \
+  --info "license:GPL-3.0-or-later" \
+  --info "origin:sing-box" \
+  --info "url:https://sing-box.sagernet.org/" \
+  --info "maintainer:nekohasekai <contact-git@sekai.icu>" \
+  --info "depends:ca-bundle kmod-inet-diag kmod-tun firewall4 kmod-nft-queue" \
+  --info "provider-priority:100" \
+  --script "pre-deinstall:${PROJECT}/release/config/openwrt.prerm" \
+  --files "$ROOT_DIR" \
+  --output "$OUTPUT_PATH"

.github/detect_track.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+branches=$(git branch -r --contains HEAD)
+if echo "$branches" | grep -q 'origin/stable'; then
+  track=stable
+elif echo "$branches" | grep -q 'origin/testing'; then
+  track=testing
+elif echo "$branches" | grep -q 'origin/oldstable'; then
+  track=oldstable
+else
+  echo "ERROR: HEAD is not on any known release branch (stable/testing/oldstable)" >&2
+  exit 1
+fi
+
+if [[ "$track" == "stable" ]]; then
+  tag=$(git describe --tags --exact-match HEAD 2>/dev/null || true)
+  if [[ -n "$tag" && "$tag" == *"-"* ]]; then
+    track=beta
+  fi
+fi
+
+case "$track" in
+  stable)    name=sing-box;           docker_tag=latest ;;
+  beta)      name=sing-box-beta;      docker_tag=latest-beta ;;
+  testing)   name=sing-box-testing;   docker_tag=latest-testing ;;
+  oldstable) name=sing-box-oldstable; docker_tag=latest-oldstable ;;
+esac
+
+echo "track=${track} name=${name} docker_tag=${docker_tag}" >&2
+echo "TRACK=${track}" >> "$GITHUB_ENV"
+echo "NAME=${name}" >> "$GITHUB_ENV"
+echo "DOCKER_TAG=${docker_tag}" >> "$GITHUB_ENV"

.github/renovate.json

@@ -6,7 +6,7 @@
     ":disableRateLimiting"
   ],
   "baseBranches": [
-    "dev-next"
+    "unstable"
   ],
   "golang": {
     "enabled": false

.github/setup_go_for_macos1013.sh

@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+VERSION="1.25.8"
+PATCH_COMMITS=(
+  "afe69d3cec1c6dcf0f1797b20546795730850070"
+  "1ed289b0cf87dc5aae9c6fe1aa5f200a83412938"
+)
+CURL_ARGS=(
+  -fL
+  --silent
+  --show-error
+)
+
+if [[ -n "${GITHUB_TOKEN:-}" ]]; then
+  CURL_ARGS+=(-H "Authorization: Bearer ${GITHUB_TOKEN}")
+fi
+
+mkdir -p "$HOME/go"
+cd "$HOME/go"
+wget "https://dl.google.com/go/go${VERSION}.darwin-arm64.tar.gz"
+tar -xzf "go${VERSION}.darwin-arm64.tar.gz"
+#cp -a go go_bootstrap
+mv go go_osx
+cd go_osx
+
+# these patch URLs only work on golang1.25.x
+# that means after golang1.26 release it must be changed
+# see: https://github.com/SagerNet/go/commits/release-branch.go1.25/
+# revert:
+# 33d3f603c1: "cmd/link/internal/ld: use 12.0.0 OS/SDK versions for macOS linking"
+# 937368f84e: "crypto/x509: change how we retrieve chains on darwin"
+
+for patch_commit in "${PATCH_COMMITS[@]}"; do
+  curl "${CURL_ARGS[@]}" "https://github.com/SagerNet/go/commit/${patch_commit}.diff" | patch --verbose -p 1
+done
+
+# Rebuild is not needed: we build with CGO_ENABLED=1, so Apple's external
+# linker handles LC_BUILD_VERSION via MACOSX_DEPLOYMENT_TARGET, and the
+# stdlib (crypto/x509) is compiled from patched src automatically.
+#cd src
+#GOROOT_BOOTSTRAP="$HOME/go/go_bootstrap" ./make.bash
+#cd ../..
+#rm -rf go_bootstrap "go${VERSION}.darwin-arm64.tar.gz"

.github/setup_go_for_windows7.sh

@@ -0,0 +1,46 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+VERSION="1.25.8"
+PATCH_COMMITS=(
+  "466f6c7a29bc098b0d4c987b803c779222894a11"
+  "1bdabae205052afe1dadb2ad6f1ba612cdbc532a"
+  "a90777dcf692dd2168577853ba743b4338721b06"
+  "f6bddda4e8ff58a957462a1a09562924d5f3d05c"
+  "bed309eff415bcb3c77dd4bc3277b682b89a388d"
+  "34b899c2fb39b092db4fa67c4417e41dc046be4b"
+)
+CURL_ARGS=(
+  -fL
+  --silent
+  --show-error
+)
+
+if [[ -n "${GITHUB_TOKEN:-}" ]]; then
+  CURL_ARGS+=(-H "Authorization: Bearer ${GITHUB_TOKEN}")
+fi
+
+mkdir -p "$HOME/go"
+cd "$HOME/go"
+wget "https://dl.google.com/go/go${VERSION}.linux-amd64.tar.gz"
+tar -xzf "go${VERSION}.linux-amd64.tar.gz"
+mv go go_win7
+cd go_win7
+
+# modify from https://github.com/restic/restic/issues/4636#issuecomment-1896455557
+# these patch URLs only work on golang1.25.x
+# that means after golang1.26 release it must be changed
+# see: https://github.com/MetaCubeX/go/commits/release-branch.go1.25/
+# revert:
+# 693def151adff1af707d82d28f55dba81ceb08e1: "crypto/rand,runtime: switch RtlGenRandom for ProcessPrng"
+# 7c1157f9544922e96945196b47b95664b1e39108: "net: remove sysSocket fallback for Windows 7"
+# 48042aa09c2f878c4faa576948b07fe625c4707a: "syscall: remove Windows 7 console handle workaround"
+# a17d959debdb04cd550016a3501dd09d50cd62e7: "runtime: always use LoadLibraryEx to load system libraries"
+# fixes:
+# bed309eff415bcb3c77dd4bc3277b682b89a388d: "Fix os.RemoveAll not working on Windows7"
+# 34b899c2fb39b092db4fa67c4417e41dc046be4b: "Revert \"os: remove 5ms sleep on Windows in (*Process).Wait\""
+
+for patch_commit in "${PATCH_COMMITS[@]}"; do
+  curl "${CURL_ARGS[@]}" "https://github.com/MetaCubeX/go/commit/${patch_commit}.diff" | patch --verbose -p 1
+done

.github/setup_legacy_go.sh

@@ -1,25 +0,0 @@
-#!/usr/bin/env bash
-
-VERSION="1.23.6"
-
-mkdir -p $HOME/go
-cd $HOME/go
-wget "https://dl.google.com/go/go${VERSION}.linux-amd64.tar.gz"
-tar -xzf "go${VERSION}.linux-amd64.tar.gz"
-mv go go_legacy
-cd go_legacy
-
-# modify from https://github.com/restic/restic/issues/4636#issuecomment-1896455557
-# this patch file only works on golang1.23.x
-# that means after golang1.24 release it must be changed
-# see: https://github.com/MetaCubeX/go/commits/release-branch.go1.23/
-# revert:
-# 693def151adff1af707d82d28f55dba81ceb08e1: "crypto/rand,runtime: switch RtlGenRandom for ProcessPrng"
-# 7c1157f9544922e96945196b47b95664b1e39108: "net: remove sysSocket fallback for Windows 7"
-# 48042aa09c2f878c4faa576948b07fe625c4707a: "syscall: remove Windows 7 console handle workaround"
-# a17d959debdb04cd550016a3501dd09d50cd62e7: "runtime: always use LoadLibraryEx to load system libraries"
-
-curl https://github.com/MetaCubeX/go/commit/9ac42137ef6730e8b7daca016ece831297a1d75b.diff | patch --verbose -p 1
-curl https://github.com/MetaCubeX/go/commit/21290de8a4c91408de7c2b5b68757b1e90af49dd.diff | patch --verbose -p 1
-curl https://github.com/MetaCubeX/go/commit/6a31d3fa8e47ddabc10bd97bff10d9a85f4cfb76.diff | patch --verbose -p 1
-curl https://github.com/MetaCubeX/go/commit/69e2eed6dd0f6d815ebf15797761c13f31213dd6.diff | patch --verbose -p 1

.github/update_cronet.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+set -e -o pipefail
+
+SCRIPT_DIR=$(dirname "$0")
+PROJECTS=$SCRIPT_DIR/../..
+
+git -C $PROJECTS/cronet-go fetch origin main
+git -C $PROJECTS/cronet-go fetch origin go
+go get -x github.com/sagernet/cronet-go/all@$(git -C $PROJECTS/cronet-go rev-parse origin/go)
+go get -x github.com/sagernet/cronet-go@$(git -C $PROJECTS/cronet-go rev-parse origin/go)
+go mod tidy
+git -C $PROJECTS/cronet-go rev-parse origin/go > "$SCRIPT_DIR/CRONET_GO_VERSION"

.github/update_cronet_dev.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+set -e -o pipefail
+
+SCRIPT_DIR=$(dirname "$0")
+PROJECTS=$SCRIPT_DIR/../..
+
+git -C $PROJECTS/cronet-go fetch origin dev
+git -C $PROJECTS/cronet-go fetch origin go_dev
+go get -x github.com/sagernet/cronet-go/all@$(git -C $PROJECTS/cronet-go rev-parse origin/go_dev)
+go get -x github.com/sagernet/cronet-go@$(git -C $PROJECTS/cronet-go rev-parse origin/go_dev)
+go mod tidy
+git -C $PROJECTS/cronet-go rev-parse origin/dev > "$SCRIPT_DIR/CRONET_GO_VERSION"

.github/workflows/build.yml

@@ -25,8 +25,9 @@ on:
           - publish-android
   push:
     branches:
-      - main-next
-      - dev-next
+      - stable
+      - testing
+      - unstable
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}-${{ github.event_name }}-${{ inputs.build }}
@@ -40,13 +41,13 @@ jobs:
       version: ${{ steps.outputs.outputs.version }}
     steps:
       - name: Checkout
-        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
         with:
           fetch-depth: 0
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: ^1.24.5
+          go-version: ~1.25.8
       - name: Check input version
         if: github.event_name == 'workflow_dispatch'
         run: |-
@@ -69,70 +70,134 @@ jobs:
     strategy:
       matrix:
         include:
-          - { 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: amd64, variant: purego, naive: true }
+          - { os: linux, arch: amd64, variant: glibc, naive: true }
+          - { os: linux, arch: amd64, variant: musl, naive: true, debian: amd64, rpm: x86_64, pacman: x86_64, alpine: x86_64, openwrt: "x86_64" }
+
+          - { os: linux, arch: arm64, variant: purego, naive: true }
+          - { os: linux, arch: arm64, variant: glibc, naive: true }
+          - { os: linux, arch: arm64, variant: musl, naive: true, debian: arm64, rpm: aarch64, pacman: aarch64, alpine: aarch64, openwrt: "aarch64_cortex-a53 aarch64_cortex-a72 aarch64_cortex-a76 aarch64_generic" }
+
+          - { os: linux, arch: "386", go386: sse2 }
+          - { os: linux, arch: "386", variant: glibc, naive: true, go386: sse2 }
+          - { os: linux, arch: "386", variant: musl, naive: true, go386: sse2, debian: i386, rpm: i386, alpine: x86, openwrt: "i386_pentium4" }
+
+          - { os: linux, arch: arm, goarm: "7" }
+          - { os: linux, arch: arm, variant: glibc, naive: true, goarm: "7" }
+          - { os: linux, arch: arm, variant: musl, naive: true, goarm: "7", debian: armhf, rpm: armv7hl, pacman: armv7hl, alpine: armv7, 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: mipsle, gomips: hardfloat, naive: true, variant: glibc }
+          - { os: linux, arch: mipsle, gomips: softfloat, naive: true, variant: musl, debian: mipsel, rpm: mipsel, openwrt: "mipsel_24kc mipsel_74kc mipsel_mips32" }
+          - { os: linux, arch: mips64le, gomips: hardfloat, naive: true, variant: glibc, debian: mips64el, rpm: mips64el }
+          - { os: linux, arch: riscv64, naive: true, variant: glibc }
+          - { os: linux, arch: riscv64, naive: true, variant: musl, debian: riscv64, rpm: riscv64, alpine: riscv64, openwrt: "riscv64_generic" }
+          - { os: linux, arch: loong64, naive: true, variant: glibc }
+          - { os: linux, arch: loong64, naive: true, variant: musl, debian: loongarch64, rpm: loongarch64, alpine: loongarch64, openwrt: "loongarch64_generic" }
+
           - { 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: mipsle, gomips: hardfloat, openwrt: "mipsel_24kc_24kf" }
+          - { os: linux, arch: mipsle, gomips: softfloat }
           - { 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: hardfloat }
           - { 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: linux, arch: riscv64 }
+          - { os: linux, arch: loong64 }
 
-          - { 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: windows, arch: amd64, legacy_win7: true, legacy_name: "windows-7" }
+          - { os: windows, arch: "386", legacy_win7: true, legacy_name: "windows-7" }
 
-          - { os: darwin, arch: amd64 }
-          - { 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" }
+          - { os: android, arch: arm64, ndk: "aarch64-linux-android23" }
+          - { os: android, arch: arm, ndk: "armv7a-linux-androideabi23" }
+          - { os: android, arch: amd64, ndk: "x86_64-linux-android23" }
+          - { os: android, arch: "386", ndk: "i686-linux-android23" }
     steps:
       - name: Checkout
-        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
         with:
           fetch-depth: 0
       - name: Setup Go
-        if: ${{ ! matrix.legacy_go }}
+        if: ${{ ! matrix.legacy_win7 }}
         uses: actions/setup-go@v5
         with:
-          go-version: ^1.24.5
-      - name: Cache Legacy Go
-        if: matrix.require_legacy_go
-        id: cache-legacy-go
+          go-version: ~1.25.8
+      - name: Cache Go for Windows 7
+        if: matrix.legacy_win7
+        id: cache-go-for-windows7
         uses: actions/cache@v4
         with:
           path: |
-            ~/go/go_legacy
-          key: go_legacy_1236
-      - name: Setup Legacy Go
-        if: matrix.legacy_go && steps.cache-legacy-go.outputs.cache-hit != 'true'
+            ~/go/go_win7
+          key: go_win7_1258
+      - name: Setup Go for Windows 7
+        if: matrix.legacy_win7 && steps.cache-go-for-windows7.outputs.cache-hit != 'true'
+        env:
+          GITHUB_TOKEN: ${{ github.token }}
         run: |-
-          .github/setup_legacy_go.sh
-      - name: Setup Legacy Go 2
-        if: matrix.legacy_go
+          .github/setup_go_for_windows7.sh
+      - name: Setup Go for Windows 7
+        if: matrix.legacy_win7
         run: |-
-          echo "PATH=$HOME/go/go_legacy/bin:$PATH" >> $GITHUB_ENV
-          echo "GOROOT=$HOME/go/go_legacy" >> $GITHUB_ENV
+          echo "PATH=$HOME/go/go_win7/bin:$PATH" >> $GITHUB_ENV
+          echo "GOROOT=$HOME/go/go_win7" >> $GITHUB_ENV
       - name: Setup Android NDK
         if: matrix.os == 'android'
         uses: nttld/setup-ndk@v1
         with:
           ndk-version: r28
           local-cache: true
+      - name: Clone cronet-go
+        if: matrix.naive
+        run: |
+          set -xeuo pipefail
+          CRONET_GO_VERSION=$(cat .github/CRONET_GO_VERSION)
+          git init ~/cronet-go
+          git -C ~/cronet-go remote add origin https://github.com/sagernet/cronet-go.git
+          git -C ~/cronet-go fetch --depth=1 origin "$CRONET_GO_VERSION"
+          git -C ~/cronet-go checkout FETCH_HEAD
+          git -C ~/cronet-go submodule update --init --recursive --depth=1
+      - name: Regenerate Debian keyring
+        if: matrix.naive
+        run: |
+          set -xeuo pipefail
+          rm -f ~/cronet-go/naiveproxy/src/build/linux/sysroot_scripts/keyring.gpg
+          cd ~/cronet-go
+          GPG_TTY=/dev/null ./naiveproxy/src/build/linux/sysroot_scripts/generate_keyring.sh
+      - name: Cache Chromium toolchain
+        if: matrix.naive
+        id: cache-chromium-toolchain
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/cronet-go/naiveproxy/src/third_party/llvm-build/
+            ~/cronet-go/naiveproxy/src/gn/out/
+            ~/cronet-go/naiveproxy/src/chrome/build/pgo_profiles/
+            ~/cronet-go/naiveproxy/src/out/sysroot-build/
+          key: chromium-toolchain-${{ matrix.arch }}-${{ matrix.variant }}-${{ hashFiles('.github/CRONET_GO_VERSION') }}
+      - name: Download Chromium toolchain
+        if: matrix.naive
+        run: |
+          set -xeuo pipefail
+          cd ~/cronet-go
+          if [[ "${{ matrix.variant }}" == "musl" ]]; then
+            go run ./cmd/build-naive --target=linux/${{ matrix.arch }} --libc=musl download-toolchain
+          else
+            go run ./cmd/build-naive --target=linux/${{ matrix.arch }} download-toolchain
+          fi
+      - name: Set Chromium toolchain environment
+        if: matrix.naive
+        run: |
+          set -xeuo pipefail
+          cd ~/cronet-go
+          if [[ "${{ matrix.variant }}" == "musl" ]]; then
+            go run ./cmd/build-naive --target=linux/${{ matrix.arch }} --libc=musl env >> $GITHUB_ENV
+          else
+            go run ./cmd/build-naive --target=linux/${{ matrix.arch }} env >> $GITHUB_ENV
+          fi
       - name: Set tag
         run: |-
           git ls-remote --exit-code --tags origin v${{ needs.calculate_version.outputs.version }} || echo "PUBLISHED=false" >> "$GITHUB_ENV"
@@ -140,15 +205,83 @@ jobs:
       - name: Set build tags
         run: |
           set -xeuo pipefail
-          TAGS='with_gvisor,with_quic,with_dhcp,with_wireguard,with_utls,with_acme,with_clash_api,with_tailscale'
+          if [[ "${{ matrix.naive }}" == "true" ]]; then
+            TAGS=$(cat release/DEFAULT_BUILD_TAGS)
+          else
+            TAGS=$(cat release/DEFAULT_BUILD_TAGS_OTHERS)
+          fi
+          if [[ "${{ matrix.variant }}" == "purego" ]]; then
+            TAGS="${TAGS},with_purego"
+          elif [[ "${{ matrix.variant }}" == "musl" ]]; then
+            TAGS="${TAGS},with_musl"
+          fi
           echo "BUILD_TAGS=${TAGS}" >> "${GITHUB_ENV}"
-      - name: Build
-        if: matrix.os != 'android'
+      - name: Set shared ldflags
+        run: |
+          echo "LDFLAGS_SHARED=$(cat release/LDFLAGS)" >> "${GITHUB_ENV}"
+      - name: Build (purego)
+        if: matrix.variant == 'purego'
         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 }}' \
+          -ldflags "-X 'github.com/sagernet/sing-box/constant.Version=${{ needs.calculate_version.outputs.version }}' ${LDFLAGS_SHARED} -s -w -buildid=" \
+          ./cmd/sing-box
+        env:
+          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 }}
+      - name: Extract libcronet.so
+        if: matrix.variant == 'purego' && matrix.naive
+        run: |
+          cd ~/cronet-go
+          CGO_ENABLED=0 go run -v ./cmd/build-naive extract-lib --target ${{ matrix.os }}/${{ matrix.arch }} -o $GITHUB_WORKSPACE/dist
+      - name: Build (glibc)
+        if: matrix.variant == 'glibc'
+        run: |
+          set -xeuo pipefail
+          mkdir -p dist
+          go build -v -trimpath -o dist/sing-box -tags "${BUILD_TAGS}" \
+          -ldflags "-X 'github.com/sagernet/sing-box/constant.Version=${{ needs.calculate_version.outputs.version }}' ${LDFLAGS_SHARED} -s -w -buildid=" \
+          ./cmd/sing-box
+        env:
+          CGO_ENABLED: "1"
+          GOOS: linux
+          GOARCH: ${{ matrix.arch }}
+          GO386: ${{ matrix.go386 }}
+          GOARM: ${{ matrix.goarm }}
+          GOMIPS: ${{ matrix.gomips }}
+          GOMIPS64: ${{ matrix.gomips }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Build (musl)
+        if: matrix.variant == 'musl'
+        run: |
+          set -xeuo pipefail
+          mkdir -p dist
+          go build -v -trimpath -o dist/sing-box -tags "${BUILD_TAGS}" \
+          -ldflags "-X 'github.com/sagernet/sing-box/constant.Version=${{ needs.calculate_version.outputs.version }}' ${LDFLAGS_SHARED} -s -w -buildid=" \
+          ./cmd/sing-box
+        env:
+          CGO_ENABLED: "1"
+          GOOS: linux
+          GOARCH: ${{ matrix.arch }}
+          GO386: ${{ matrix.go386 }}
+          GOARM: ${{ matrix.goarm }}
+          GOMIPS: ${{ matrix.gomips }}
+          GOMIPS64: ${{ matrix.gomips }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Build (non-variant)
+        if: matrix.os != 'android' && matrix.variant == ''
+        run: |
+          set -xeuo pipefail
+          mkdir -p dist
+          go build -v -trimpath -o dist/sing-box -tags "${BUILD_TAGS}" \
+          -ldflags "-X 'github.com/sagernet/sing-box/constant.Version=${{ needs.calculate_version.outputs.version }}' ${LDFLAGS_SHARED} -s -w -buildid=" \
           ./cmd/sing-box
         env:
           CGO_ENABLED: "0"
@@ -168,7 +301,7 @@ jobs:
           export CXX="${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 }}' \
+          -ldflags "-X 'github.com/sagernet/sing-box/constant.Version=${{ needs.calculate_version.outputs.version }}' ${LDFLAGS_SHARED} -s -w -buildid=" \
           ./cmd/sing-box
         env:
           CGO_ENABLED: "1"
@@ -184,8 +317,13 @@ jobs:
             DIR_NAME="${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="${DIR_NAME}-legacy"
+          elif [[ -n "${{ matrix.legacy_name }}" ]]; then
+            DIR_NAME="${DIR_NAME}-legacy-${{ matrix.legacy_name }}"
+          fi
+          if [[ "${{ matrix.variant }}" == "glibc" ]]; then
+            DIR_NAME="${DIR_NAME}-glibc"
+          elif [[ "${{ matrix.variant }}" == "musl" ]]; then
+            DIR_NAME="${DIR_NAME}-musl"
           fi
           echo "DIR_NAME=${DIR_NAME}" >> "${GITHUB_ENV}"
           PKG_VERSION="${{ needs.calculate_version.outputs.version }}"
@@ -237,7 +375,7 @@ jobs:
           sudo gem install fpm
           sudo apt-get update
           sudo apt-get install -y libarchive-tools
-          cp .fpm_systemd .fpm
+          cp .fpm_pacman .fpm
           fpm -t pacman \
             -v "$PKG_VERSION" \
             -p "dist/sing-box_${{ needs.calculate_version.outputs.version }}_${{ matrix.os }}_${{ matrix.pacman }}.pkg.tar.zst" \
@@ -258,6 +396,30 @@ jobs:
             .github/deb2ipk.sh "$architecture" "dist/openwrt.deb" "dist/sing-box_${{ needs.calculate_version.outputs.version }}_openwrt_${architecture}.ipk"
           done
           rm "dist/openwrt.deb"
+      - name: Install apk-tools
+        if: matrix.openwrt != '' || matrix.alpine != ''
+        run: |-
+          docker run --rm -v /usr/local/bin:/mnt alpine:edge sh -c "apk add --no-cache apk-tools-static && cp /sbin/apk.static /mnt/apk && chmod +x /mnt/apk"
+      - name: Package OpenWrt APK
+        if: matrix.openwrt != ''
+        run: |-
+          set -xeuo pipefail
+          for architecture in ${{ matrix.openwrt }}; do
+            .github/build_openwrt_apk.sh \
+              "$architecture" \
+              "${{ needs.calculate_version.outputs.version }}" \
+              "dist/sing-box" \
+              "dist/sing-box_${{ needs.calculate_version.outputs.version }}_openwrt_${architecture}.apk"
+          done
+      - name: Package Alpine APK
+        if: matrix.alpine != ''
+        run: |-
+          set -xeuo pipefail
+          .github/build_alpine_apk.sh \
+            "${{ matrix.alpine }}" \
+            "${{ needs.calculate_version.outputs.version }}" \
+            "dist/sing-box" \
+            "dist/sing-box_${{ needs.calculate_version.outputs.version }}_linux_${{ matrix.alpine }}.apk"
       - name: Archive
         run: |
           set -xeuo pipefail
@@ -269,32 +431,217 @@ jobs:
             zip -r "${DIR_NAME}.zip" "${DIR_NAME}"
           else
             cp sing-box "${DIR_NAME}"
+            if [ -f libcronet.so ]; then
+              cp libcronet.so "${DIR_NAME}"
+            fi
             tar -czvf "${DIR_NAME}.tar.gz" "${DIR_NAME}"
           fi
           rm -r "${DIR_NAME}"
+      - name: Cleanup
+        run: rm -f dist/sing-box dist/libcronet.so
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4
+        with:
+          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_name && format('-legacy-{0}', matrix.legacy_name) }}${{ matrix.variant && format('-{0}', matrix.variant) }}
+          path: "dist"
+  build_darwin:
+    name: Build Darwin binaries
+    if: github.event_name != 'workflow_dispatch' || inputs.build == 'All' || inputs.build == 'Binary'
+    runs-on: macos-latest
+    needs:
+      - calculate_version
+    strategy:
+      matrix:
+        include:
+          - { arch: amd64 }
+          - { arch: arm64 }
+          - { arch: amd64, legacy_osx: true, legacy_name: "macos-10.13" }
+    steps:
+      - name: Checkout
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
+        with:
+          fetch-depth: 0
+      - name: Setup Go
+        if: ${{ ! matrix.legacy_osx }}
+        uses: actions/setup-go@v5
+        with:
+          go-version: ^1.25.3
+      - name: Cache Go for macOS 10.13
+        if: matrix.legacy_osx
+        id: cache-go-for-macos1013
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/go/go_osx
+          key: go_osx_1258
+      - name: Setup Go for macOS 10.13
+        if: matrix.legacy_osx && steps.cache-go-for-macos1013.outputs.cache-hit != 'true'
+        env:
+          GITHUB_TOKEN: ${{ github.token }}
+        run: |-
+          .github/setup_go_for_macos1013.sh
+      - name: Setup Go for macOS 10.13
+        if: matrix.legacy_osx
+        run: |-
+          echo "PATH=$HOME/go/go_osx/bin:$PATH" >> $GITHUB_ENV
+          echo "GOROOT=$HOME/go/go_osx" >> $GITHUB_ENV
+      - name: Set tag
+        run: |-
+          git ls-remote --exit-code --tags origin v${{ 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
+          if [[ "${{ matrix.legacy_osx }}" != "true" ]]; then
+            TAGS=$(cat release/DEFAULT_BUILD_TAGS)
+          else
+            TAGS=$(cat release/DEFAULT_BUILD_TAGS_OTHERS)
+          fi
+          echo "BUILD_TAGS=${TAGS}" >> "${GITHUB_ENV}"
+      - name: Set shared ldflags
+        run: |
+          echo "LDFLAGS_SHARED=$(cat release/LDFLAGS)" >> "${GITHUB_ENV}"
+      - name: Build
+        run: |
+          set -xeuo pipefail
+          mkdir -p dist
+          go build -v -trimpath -o dist/sing-box -tags "${BUILD_TAGS}" \
+          -ldflags "-X 'github.com/sagernet/sing-box/constant.Version=${{ needs.calculate_version.outputs.version }}' ${LDFLAGS_SHARED} -s -w -buildid=" \
+          ./cmd/sing-box
+        env:
+          CGO_ENABLED: "1"
+          GOOS: darwin
+          GOARCH: ${{ matrix.arch }}
+          MACOSX_DEPLOYMENT_TARGET: ${{ matrix.legacy_osx && '10.13' || '' }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Set name
+        run: |-
+          DIR_NAME="sing-box-${{ needs.calculate_version.outputs.version }}-darwin-${{ matrix.arch }}"
+          if [[ -n "${{ matrix.legacy_name }}" ]]; then
+            DIR_NAME="${DIR_NAME}-legacy-${{ matrix.legacy_name }}"
+          fi
+          echo "DIR_NAME=${DIR_NAME}" >> "${GITHUB_ENV}"
+      - name: Archive
+        run: |
+          set -xeuo pipefail
+          cd dist
+          mkdir -p "${DIR_NAME}"
+          cp ../LICENSE "${DIR_NAME}"
+          cp sing-box "${DIR_NAME}"
+          tar -czvf "${DIR_NAME}.tar.gz" "${DIR_NAME}"
+          rm -r "${DIR_NAME}"
       - name: Cleanup
         run: rm dist/sing-box
       - name: Upload artifact
         uses: actions/upload-artifact@v4
         with:
-          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' || '' }}
+          name: binary-darwin_${{ matrix.arch }}${{ matrix.legacy_name && format('-legacy-{0}', matrix.legacy_name) }}
+          path: "dist"
+  build_windows:
+    name: Build Windows binaries
+    if: github.event_name != 'workflow_dispatch' || inputs.build == 'All' || inputs.build == 'Binary'
+    runs-on: windows-latest
+    needs:
+      - calculate_version
+    strategy:
+      matrix:
+        include:
+          - { arch: amd64, naive: true }
+          - { arch: "386" }
+          - { arch: arm64, naive: true }
+    steps:
+      - name: Checkout
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
+        with:
+          fetch-depth: 0
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ^1.25.4
+      - name: Set tag
+        run: |-
+          git ls-remote --exit-code --tags origin v${{ needs.calculate_version.outputs.version }} || echo "PUBLISHED=false" >> "$env:GITHUB_ENV"
+          git tag v${{ needs.calculate_version.outputs.version }} -f
+      - name: Build
+        if: matrix.naive
+        run: |
+          $TAGS = Get-Content release/DEFAULT_BUILD_TAGS_WINDOWS
+          $LDFLAGS_SHARED = Get-Content release/LDFLAGS
+          mkdir -p dist
+          go build -v -trimpath -o dist/sing-box.exe -tags "$TAGS" `
+          -ldflags "-X 'github.com/sagernet/sing-box/constant.Version=${{ needs.calculate_version.outputs.version }}' $LDFLAGS_SHARED -s -w -buildid=" `
+          ./cmd/sing-box
+        env:
+          CGO_ENABLED: "0"
+          GOOS: windows
+          GOARCH: ${{ matrix.arch }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Build
+        if: ${{ !matrix.naive }}
+        run: |
+          $TAGS = Get-Content release/DEFAULT_BUILD_TAGS_OTHERS
+          $LDFLAGS_SHARED = Get-Content release/LDFLAGS
+          mkdir -p dist
+          go build -v -trimpath -o dist/sing-box.exe -tags "$TAGS" `
+          -ldflags "-X 'github.com/sagernet/sing-box/constant.Version=${{ needs.calculate_version.outputs.version }}' $LDFLAGS_SHARED -s -w -buildid=" `
+          ./cmd/sing-box
+        env:
+          CGO_ENABLED: "0"
+          GOOS: windows
+          GOARCH: ${{ matrix.arch }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Extract libcronet.dll
+        if: matrix.naive
+        run: |
+          $CRONET_GO_VERSION = Get-Content .github/CRONET_GO_VERSION
+          $env:CGO_ENABLED = "0"
+          go run -v "github.com/sagernet/cronet-go/cmd/build-naive@$CRONET_GO_VERSION" extract-lib --target windows/${{ matrix.arch }} -o dist
+      - name: Archive
+        if: matrix.naive
+        run: |
+          $DIR_NAME = "sing-box-${{ needs.calculate_version.outputs.version }}-windows-${{ matrix.arch }}"
+          mkdir "dist/$DIR_NAME"
+          Copy-Item LICENSE "dist/$DIR_NAME"
+          Copy-Item "dist/sing-box.exe" "dist/$DIR_NAME"
+          Copy-Item "dist/libcronet.dll" "dist/$DIR_NAME"
+          Compress-Archive -Path "dist/$DIR_NAME" -DestinationPath "dist/$DIR_NAME.zip"
+          Remove-Item -Recurse "dist/$DIR_NAME"
+      - name: Archive
+        if: ${{ !matrix.naive }}
+        run: |
+          $DIR_NAME = "sing-box-${{ needs.calculate_version.outputs.version }}-windows-${{ matrix.arch }}"
+          mkdir "dist/$DIR_NAME"
+          Copy-Item LICENSE "dist/$DIR_NAME"
+          Copy-Item "dist/sing-box.exe" "dist/$DIR_NAME"
+          Compress-Archive -Path "dist/$DIR_NAME" -DestinationPath "dist/$DIR_NAME.zip"
+          Remove-Item -Recurse "dist/$DIR_NAME"
+      - name: Cleanup
+        if: matrix.naive
+        run: Remove-Item dist/sing-box.exe, dist/libcronet.dll
+      - name: Cleanup
+        if: ${{ !matrix.naive }}
+        run: Remove-Item dist/sing-box.exe
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: binary-windows_${{ matrix.arch }}
           path: "dist"
   build_android:
     name: Build Android
-    if: github.event_name != 'workflow_dispatch' || inputs.build == 'All' || inputs.build == 'Android'
+    if: (github.event_name != 'workflow_dispatch' || inputs.build == 'All' || inputs.build == 'Android') && github.ref != 'refs/heads/oldstable'
     runs-on: ubuntu-latest
     needs:
       - calculate_version
     steps:
       - name: Checkout
-        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
         with:
           fetch-depth: 0
           submodules: 'recursive'
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: ^1.24.5
+          go-version: ~1.25.8
       - name: Setup Android NDK
         id: setup-ndk
         uses: nttld/setup-ndk@v1
@@ -317,12 +664,12 @@ jobs:
           JAVA_HOME: /usr/lib/jvm/java-17-openjdk-amd64
           ANDROID_NDK_HOME: ${{ steps.setup-ndk.outputs.ndk-path }}
       - name: Checkout main branch
-        if: github.ref == 'refs/heads/main-next' && github.event_name != 'workflow_dispatch'
+        if: github.ref == 'refs/heads/stable' && github.event_name != 'workflow_dispatch'
         run: |-
           cd clients/android
           git checkout main
       - name: Checkout dev branch
-        if: github.ref == 'refs/heads/dev-next'
+        if: github.ref == 'refs/heads/testing'
         run: |-
           cd clients/android
           git checkout dev
@@ -342,9 +689,9 @@ jobs:
       - name: Build
         run: |-
           mkdir clients/android/app/libs
-          cp libbox.aar clients/android/app/libs
+          cp *.aar clients/android/app/libs
           cd clients/android
-          ./gradlew :app:assemblePlayRelease :app:assembleOtherRelease
+          ./gradlew :app:assembleOtherRelease :app:assembleOtherLegacyRelease
         env:
           JAVA_HOME: /usr/lib/jvm/java-17-openjdk-amd64
           ANDROID_NDK_HOME: ${{ steps.setup-ndk.outputs.ndk-path }}
@@ -352,8 +699,18 @@ jobs:
       - name: Prepare upload
         run: |-
           mkdir -p dist
-          cp clients/android/app/build/outputs/apk/play/release/*.apk dist
-          cp clients/android/app/build/outputs/apk/other/release/*-universal.apk dist
+          #cp clients/android/app/build/outputs/apk/play/release/*.apk dist
+          cp clients/android/app/build/outputs/apk/other/release/*.apk dist
+          cp clients/android/app/build/outputs/apk/otherLegacy/release/*.apk dist
+          VERSION_CODE=$(grep VERSION_CODE clients/android/version.properties | cut -d= -f2)
+          VERSION_NAME=$(grep VERSION_NAME clients/android/version.properties | cut -d= -f2)
+          cat > dist/SFA-version-metadata.json << EOF
+          {
+            "version_code": ${VERSION_CODE},
+            "version_name": "${VERSION_NAME}"
+          }
+          EOF
+          cat dist/SFA-version-metadata.json
       - name: Upload artifact
         uses: actions/upload-artifact@v4
         with:
@@ -361,20 +718,20 @@ jobs:
           path: 'dist'
   publish_android:
     name: Publish Android
-    if: github.event_name == 'workflow_dispatch' && inputs.build == 'publish-android'
+    if: github.event_name == 'workflow_dispatch' && inputs.build == 'publish-android' && github.ref != 'refs/heads/oldstable'
     runs-on: ubuntu-latest
     needs:
       - calculate_version
     steps:
       - name: Checkout
-        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
         with:
           fetch-depth: 0
           submodules: 'recursive'
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: ^1.24.5
+          go-version: ~1.25.8
       - name: Setup Android NDK
         id: setup-ndk
         uses: nttld/setup-ndk@v1
@@ -397,12 +754,12 @@ jobs:
           JAVA_HOME: /usr/lib/jvm/java-17-openjdk-amd64
           ANDROID_NDK_HOME: ${{ steps.setup-ndk.outputs.ndk-path }}
       - name: Checkout main branch
-        if: github.ref == 'refs/heads/main-next' && github.event_name != 'workflow_dispatch'
+        if: github.ref == 'refs/heads/stable' && github.event_name != 'workflow_dispatch'
         run: |-
           cd clients/android
           git checkout main
       - name: Checkout dev branch
-        if: github.ref == 'refs/heads/dev-next'
+        if: github.ref == 'refs/heads/testing'
         run: |-
           cd clients/android
           git checkout dev
@@ -415,7 +772,7 @@ jobs:
         run: |-
           go run -v ./cmd/internal/update_android_version --ci
           mkdir clients/android/app/libs
-          cp libbox.aar clients/android/app/libs
+          cp *.aar clients/android/app/libs
           cd clients/android
           echo -n "$SERVICE_ACCOUNT_CREDENTIALS" | base64 --decode > service-account-credentials.json
           ./gradlew :app:publishPlayReleaseBundle
@@ -426,7 +783,8 @@ jobs:
           SERVICE_ACCOUNT_CREDENTIALS: ${{ secrets.SERVICE_ACCOUNT_CREDENTIALS }}
   build_apple:
     name: Build Apple clients
-    runs-on: macos-15
+    runs-on: macos-26
+    if: false # github.event_name != 'workflow_dispatch' || inputs.build == 'All' || inputs.build == 'Apple' || inputs.build == 'app-store' || inputs.build == 'iOS' || inputs.build == 'macOS' || inputs.build == 'tvOS' || inputs.build == 'macOS-standalone'
     needs:
       - calculate_version
     strategy:
@@ -464,7 +822,7 @@ jobs:
     steps:
       - name: Checkout
         if: matrix.if
-        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
         with:
           fetch-depth: 0
           submodules: 'recursive'
@@ -472,15 +830,7 @@ jobs:
         if: matrix.if
         uses: actions/setup-go@v5
         with:
-          go-version: ^1.24.5
-      - name: Setup Xcode stable
-        if: matrix.if && github.ref == 'refs/heads/main-next'
-        run: |-
-          sudo xcode-select -s /Applications/Xcode_16.4.app
-      - name: Setup Xcode beta
-        if: matrix.if && github.ref == 'refs/heads/dev-next'
-        run: |-
-          sudo xcode-select -s /Applications/Xcode_16.4.app
+          go-version: ~1.25.8
       - name: Set tag
         if: matrix.if
         run: |-
@@ -488,12 +838,12 @@ jobs:
           git tag v${{ needs.calculate_version.outputs.version }} -f
           echo "VERSION=${{ needs.calculate_version.outputs.version }}" >> "$GITHUB_ENV"
       - name: Checkout main branch
-        if: matrix.if && github.ref == 'refs/heads/main-next' && github.event_name != 'workflow_dispatch'
+        if: matrix.if && github.ref == 'refs/heads/stable' && github.event_name != 'workflow_dispatch'
         run: |-
           cd clients/apple
           git checkout main
       - name: Checkout dev branch
-        if: matrix.if && github.ref == 'refs/heads/dev-next'
+        if: matrix.if && github.ref == 'refs/heads/testing'
         run: |-
           cd clients/apple
           git checkout dev
@@ -579,7 +929,7 @@ jobs:
             -authenticationKeyID $ASC_KEY_ID \
             -authenticationKeyIssuerID $ASC_KEY_ISSUER_ID
       - name: Publish to TestFlight
-        if: matrix.if && matrix.name != 'macOS-standalone' && github.event_name == 'workflow_dispatch' && github.ref =='refs/heads/dev-next'
+        if: matrix.if && matrix.name != 'macOS-standalone' && github.event_name == 'workflow_dispatch' && github.ref =='refs/heads/testing'
         run: |-
           go run -v ./cmd/internal/app_store_connect publish_testflight ${{ matrix.platform }}
       - name: Build image
@@ -599,7 +949,7 @@ jobs:
           		--app-drop-link 0 0 \
           		--skip-jenkins \
           	SFM.dmg "${{ matrix.export_path }}/SFM.app"
-          xcrun notarytool submit "SFM.dmg" --wait --keychain-profile "notarytool-password"          
+          xcrun notarytool submit "SFM.dmg" --wait --keychain-profile "notarytool-password"
           cd "${{ matrix.archive }}"
           zip -r SFM.dSYMs.zip dSYMs
           popd
@@ -620,11 +970,13 @@ jobs:
     needs:
       - calculate_version
       - build
+      - build_darwin
+      - build_windows
       - build_android
       - build_apple
     steps:
       - name: Checkout
-        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
         with:
           fetch-depth: 0
       - name: Cache ghr
@@ -647,7 +999,7 @@ jobs:
           git tag v${{ needs.calculate_version.outputs.version }} -f
           echo "VERSION=${{ needs.calculate_version.outputs.version }}" >> "$GITHUB_ENV"
       - name: Download builds
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           path: dist
           merge-multiple: true

.github/workflows/docker.yml

@@ -1,6 +1,10 @@
 name: Publish Docker Images
 
 on:
+  #push:
+  #  branches:
+  #    - stable
+  #    - testing
   release:
     types:
       - published
@@ -13,20 +17,25 @@ env:
   REGISTRY_IMAGE: ghcr.io/sagernet/sing-box
 
 jobs:
-  build:
+  build_binary:
+    name: Build binary
     runs-on: ubuntu-latest
     strategy:
       fail-fast: true
       matrix:
-        platform:
-          - linux/amd64
-          - linux/arm/v6
-          - linux/arm/v7
-          - linux/arm64
-          - linux/386
-          - linux/ppc64le
-          - linux/riscv64
-          - linux/s390x
+        include:
+          # Naive-enabled builds (musl)
+          - { arch: amd64, naive: true, docker_platform: "linux/amd64" }
+          - { arch: arm64, naive: true, docker_platform: "linux/arm64" }
+          - { arch: "386", naive: true, docker_platform: "linux/386" }
+          - { arch: arm, goarm: "7", naive: true, docker_platform: "linux/arm/v7" }
+          - { arch: mipsle, gomips: softfloat, naive: true, docker_platform: "linux/mipsle" }
+          - { arch: riscv64, naive: true, docker_platform: "linux/riscv64" }
+          - { arch: loong64, naive: true, docker_platform: "linux/loong64" }
+          # Non-naive builds
+          - { arch: arm, goarm: "6", docker_platform: "linux/arm/v6" }
+          - { arch: ppc64le, docker_platform: "linux/ppc64le" }
+          - { arch: s390x, docker_platform: "linux/s390x" }
     steps:
       - name: Get commit to build
         id: ref
@@ -39,7 +48,146 @@ jobs:
           echo "ref=$ref"
           echo "ref=$ref" >> $GITHUB_OUTPUT
       - name: Checkout
-        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
+        with:
+          ref: ${{ steps.ref.outputs.ref }}
+          fetch-depth: 0
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ~1.25.8
+      - name: Clone cronet-go
+        if: matrix.naive
+        run: |
+          set -xeuo pipefail
+          CRONET_GO_VERSION=$(cat .github/CRONET_GO_VERSION)
+          git init ~/cronet-go
+          git -C ~/cronet-go remote add origin https://github.com/sagernet/cronet-go.git
+          git -C ~/cronet-go fetch --depth=1 origin "$CRONET_GO_VERSION"
+          git -C ~/cronet-go checkout FETCH_HEAD
+          git -C ~/cronet-go submodule update --init --recursive --depth=1
+      - name: Regenerate Debian keyring
+        if: matrix.naive
+        run: |
+          set -xeuo pipefail
+          rm -f ~/cronet-go/naiveproxy/src/build/linux/sysroot_scripts/keyring.gpg
+          cd ~/cronet-go
+          GPG_TTY=/dev/null ./naiveproxy/src/build/linux/sysroot_scripts/generate_keyring.sh
+      - name: Cache Chromium toolchain
+        if: matrix.naive
+        id: cache-chromium-toolchain
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/cronet-go/naiveproxy/src/third_party/llvm-build/
+            ~/cronet-go/naiveproxy/src/gn/out/
+            ~/cronet-go/naiveproxy/src/chrome/build/pgo_profiles/
+            ~/cronet-go/naiveproxy/src/out/sysroot-build/
+          key: chromium-toolchain-${{ matrix.arch }}-musl-${{ hashFiles('.github/CRONET_GO_VERSION') }}
+      - name: Download Chromium toolchain
+        if: matrix.naive
+        run: |
+          set -xeuo pipefail
+          cd ~/cronet-go
+          go run ./cmd/build-naive --target=linux/${{ matrix.arch }} --libc=musl download-toolchain
+      - name: Set version
+        run: |
+          set -xeuo pipefail
+          VERSION=$(go run ./cmd/internal/read_tag)
+          echo "VERSION=${VERSION}" >> "${GITHUB_ENV}"
+      - name: Set Chromium toolchain environment
+        if: matrix.naive
+        run: |
+          set -xeuo pipefail
+          cd ~/cronet-go
+          go run ./cmd/build-naive --target=linux/${{ matrix.arch }} --libc=musl env >> $GITHUB_ENV
+      - name: Set build tags
+        run: |
+          set -xeuo pipefail
+          if [[ "${{ matrix.naive }}" == "true" ]]; then
+            TAGS="$(cat release/DEFAULT_BUILD_TAGS),with_musl"
+          else
+            TAGS=$(cat release/DEFAULT_BUILD_TAGS_OTHERS)
+          fi
+          echo "BUILD_TAGS=${TAGS}" >> "${GITHUB_ENV}"
+      - name: Set shared ldflags
+        run: |
+          echo "LDFLAGS_SHARED=$(cat release/LDFLAGS)" >> "${GITHUB_ENV}"
+      - name: Build (naive)
+        if: matrix.naive
+        run: |
+          set -xeuo pipefail
+          go build -v -trimpath -o sing-box -tags "${BUILD_TAGS}" \
+          -ldflags "-X 'github.com/sagernet/sing-box/constant.Version=${VERSION}' ${LDFLAGS_SHARED} -s -w -buildid=" \
+          ./cmd/sing-box
+        env:
+          CGO_ENABLED: "1"
+          GOOS: linux
+          GOARCH: ${{ matrix.arch }}
+          GOARM: ${{ matrix.goarm }}
+          GOMIPS: ${{ matrix.gomips }}
+      - name: Build (non-naive)
+        if: ${{ ! matrix.naive }}
+        run: |
+          set -xeuo pipefail
+          go build -v -trimpath -o sing-box -tags "${BUILD_TAGS}" \
+          -ldflags "-X 'github.com/sagernet/sing-box/constant.Version=${VERSION}' ${LDFLAGS_SHARED} -s -w -buildid=" \
+          ./cmd/sing-box
+        env:
+          CGO_ENABLED: "0"
+          GOOS: linux
+          GOARCH: ${{ matrix.arch }}
+          GOARM: ${{ matrix.goarm }}
+      - name: Prepare artifact
+        run: |
+          platform=${{ matrix.docker_platform }}
+          echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV
+          # Rename binary to include arch info for Dockerfile.binary
+          BINARY_NAME="sing-box-${{ matrix.arch }}"
+          if [[ -n "${{ matrix.goarm }}" ]]; then
+            BINARY_NAME="${BINARY_NAME}v${{ matrix.goarm }}"
+          fi
+          mv sing-box "${BINARY_NAME}"
+          echo "BINARY_NAME=${BINARY_NAME}" >> $GITHUB_ENV
+      - name: Upload binary
+        uses: actions/upload-artifact@v4
+        with:
+          name: binary-${{ env.PLATFORM_PAIR }}
+          path: ${{ env.BINARY_NAME }}
+          if-no-files-found: error
+          retention-days: 1
+  build_docker:
+    name: Build Docker image
+    runs-on: ubuntu-latest
+    needs:
+      - build_binary
+    strategy:
+      fail-fast: true
+      matrix:
+        include:
+          - { platform: "linux/amd64" }
+          - { platform: "linux/arm/v6" }
+          - { platform: "linux/arm/v7" }
+          - { platform: "linux/arm64" }
+          - { platform: "linux/386" }
+          # mipsle: no base Docker image available for this platform
+          - { platform: "linux/ppc64le" }
+          - { platform: "linux/riscv64" }
+          - { platform: "linux/s390x" }
+          - { platform: "linux/loong64", base_image: "ghcr.io/loong64/alpine:edge" }
+    steps:
+      - name: Get commit to build
+        id: ref
+        run: |-
+          if [[ -z "${{ github.event.inputs.tag }}" ]]; then
+            ref="${{ github.ref_name }}"
+          else
+            ref="${{ github.event.inputs.tag }}"
+          fi
+          echo "ref=$ref"
+          echo "ref=$ref" >> $GITHUB_OUTPUT
+      - name: Checkout
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
         with:
           ref: ${{ steps.ref.outputs.ref }}
           fetch-depth: 0
@@ -47,6 +195,16 @@ jobs:
         run: |
           platform=${{ matrix.platform }}
           echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV
+      - name: Download binary
+        uses: actions/download-artifact@v5
+        with:
+          name: binary-${{ env.PLATFORM_PAIR }}
+          path: .
+      - name: Prepare binary
+        run: |
+          # Find and make the binary executable
+          chmod +x sing-box-*
+          ls -la sing-box-*
       - name: Setup QEMU
         uses: docker/setup-qemu-action@v3
       - name: Setup Docker Buildx
@@ -68,8 +226,9 @@ jobs:
         with:
           platforms: ${{ matrix.platform }}
           context: .
+          file: Dockerfile.binary
           build-args: |
-            BUILDKIT_CONTEXT_KEEP_GIT_DIR=1
+            BASE_IMAGE=${{ matrix.base_image || 'alpine' }}
           labels: ${{ steps.meta.outputs.labels }}
           outputs: type=image,name=${{ env.REGISTRY_IMAGE }},push-by-digest=true,name-canonical=true,push=true
       - name: Export digest
@@ -85,9 +244,10 @@ jobs:
           if-no-files-found: error
           retention-days: 1
   merge:
+    if: github.event_name != 'push'
     runs-on: ubuntu-latest
     needs:
-      - build
+      - build_docker
     steps:
       - name: Get commit to build
         id: ref
@@ -99,15 +259,15 @@ jobs:
           fi
           echo "ref=$ref"
           echo "ref=$ref" >> $GITHUB_OUTPUT
-          if [[ $ref == *"-"* ]]; then
-            latest=latest-beta
-          else
-            latest=latest
-          fi
-          echo "latest=$latest"
-          echo "latest=$latest" >> $GITHUB_OUTPUT
+      - name: Checkout
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
+        with:
+          ref: ${{ steps.ref.outputs.ref }}
+          fetch-depth: 0
+      - name: Detect track
+        run: bash .github/detect_track.sh
       - name: Download digests
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           path: /tmp/digests
           pattern: digests-*
@@ -121,13 +281,15 @@ jobs:
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
       - name: Create manifest list and push
+        if: github.event_name != 'push'
         working-directory: /tmp/digests
         run: |
           docker buildx imagetools create \
-            -t "${{ env.REGISTRY_IMAGE }}:${{ steps.ref.outputs.latest }}" \
+            -t "${{ env.REGISTRY_IMAGE }}:${{ env.DOCKER_TAG }}" \
             -t "${{ env.REGISTRY_IMAGE }}:${{ steps.ref.outputs.ref }}" \
             $(printf '${{ env.REGISTRY_IMAGE }}@sha256:%s ' *)
       - name: Inspect image
+        if: github.event_name != 'push'
         run: |
-          docker buildx imagetools inspect ${{ env.REGISTRY_IMAGE }}:${{ steps.ref.outputs.latest }}
+          docker buildx imagetools inspect ${{ env.REGISTRY_IMAGE }}:${{ env.DOCKER_TAG }}
           docker buildx imagetools inspect ${{ env.REGISTRY_IMAGE }}:${{ steps.ref.outputs.ref }}

.github/workflows/lint.yml

@@ -3,18 +3,20 @@ name: Lint
 on:
   push:
     branches:
-      - stable-next
-      - main-next
-      - dev-next
+      - oldstable
+      - stable
+      - testing
+      - unstable
     paths-ignore:
       - '**.md'
       - '.github/**'
       - '!.github/workflows/lint.yml'
   pull_request:
     branches:
-      - stable-next
-      - main-next
-      - dev-next
+      - oldstable
+      - stable
+      - testing
+      - unstable
 
 jobs:
   build:
@@ -22,15 +24,15 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
         with:
           fetch-depth: 0
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: ^1.24.5
+          go-version: ^1.25
       - name: golangci-lint
-        uses: golangci/golangci-lint-action@v6
+        uses: golangci/golangci-lint-action@v8
         with:
           version: latest
           args: --timeout=30m

.github/workflows/linux.yml

@@ -1,6 +1,10 @@
 name: Build Linux Packages
 
 on:
+  #push:
+  #  branches:
+  #    - stable
+  #    - testing
   workflow_dispatch:
     inputs:
       version:
@@ -19,13 +23,13 @@ jobs:
       version: ${{ steps.outputs.outputs.version }}
     steps:
       - name: Checkout
-        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
         with:
           fetch-depth: 0
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: ^1.24.5
+          go-version: ~1.25.8
       - name: Check input version
         if: github.event_name == 'workflow_dispatch'
         run: |-
@@ -47,32 +51,68 @@ jobs:
     strategy:
       matrix:
         include:
-          - { os: linux, arch: amd64, debian: amd64, rpm: x86_64, pacman: x86_64 }
-          - { os: linux, arch: "386", debian: i386, rpm: i386 }
+          # Naive-enabled builds (musl)
+          - { os: linux, arch: amd64, naive: true, debian: amd64, rpm: x86_64, pacman: x86_64 }
+          - { os: linux, arch: arm64, naive: true, debian: arm64, rpm: aarch64, pacman: aarch64 }
+          - { os: linux, arch: "386", naive: true, debian: i386, rpm: i386 }
+          - { os: linux, arch: arm, goarm: "7", naive: true, debian: armhf, rpm: armv7hl, pacman: armv7hl }
+          - { os: linux, arch: mipsle, gomips: softfloat, naive: true, debian: mipsel, rpm: mipsel }
+          - { os: linux, arch: riscv64, naive: true, debian: riscv64, rpm: riscv64 }
+          - { os: linux, arch: loong64, naive: true, debian: loongarch64, rpm: loongarch64 }
+          # Non-naive builds (unsupported architectures)
           - { 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
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
         with:
           fetch-depth: 0
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: ^1.24.5
-      - name: Setup Android NDK
-        if: matrix.os == 'android'
-        uses: nttld/setup-ndk@v1
+          go-version: ~1.25.8
+      - name: Clone cronet-go
+        if: matrix.naive
+        run: |
+          set -xeuo pipefail
+          CRONET_GO_VERSION=$(cat .github/CRONET_GO_VERSION)
+          git init ~/cronet-go
+          git -C ~/cronet-go remote add origin https://github.com/sagernet/cronet-go.git
+          git -C ~/cronet-go fetch --depth=1 origin "$CRONET_GO_VERSION"
+          git -C ~/cronet-go checkout FETCH_HEAD
+          git -C ~/cronet-go submodule update --init --recursive --depth=1
+      - name: Regenerate Debian keyring
+        if: matrix.naive
+        run: |
+          set -xeuo pipefail
+          rm -f ~/cronet-go/naiveproxy/src/build/linux/sysroot_scripts/keyring.gpg
+          cd ~/cronet-go
+          GPG_TTY=/dev/null ./naiveproxy/src/build/linux/sysroot_scripts/generate_keyring.sh
+      - name: Cache Chromium toolchain
+        if: matrix.naive
+        id: cache-chromium-toolchain
+        uses: actions/cache@v4
         with:
-          ndk-version: r28
-          local-cache: true
+          path: |
+            ~/cronet-go/naiveproxy/src/third_party/llvm-build/
+            ~/cronet-go/naiveproxy/src/gn/out/
+            ~/cronet-go/naiveproxy/src/chrome/build/pgo_profiles/
+            ~/cronet-go/naiveproxy/src/out/sysroot-build/
+          key: chromium-toolchain-${{ matrix.arch }}-musl-${{ hashFiles('.github/CRONET_GO_VERSION') }}
+      - name: Download Chromium toolchain
+        if: matrix.naive
+        run: |
+          set -xeuo pipefail
+          cd ~/cronet-go
+          go run ./cmd/build-naive --target=linux/${{ matrix.arch }} --libc=musl download-toolchain
+      - name: Set Chromium toolchain environment
+        if: matrix.naive
+        run: |
+          set -xeuo pipefail
+          cd ~/cronet-go
+          go run ./cmd/build-naive --target=linux/${{ matrix.arch }} --libc=musl env >> $GITHUB_ENV
       - name: Set tag
         run: |-
           git ls-remote --exit-code --tags origin v${{ needs.calculate_version.outputs.version }} || echo "PUBLISHED=false" >> "$GITHUB_ENV"
@@ -80,14 +120,38 @@ jobs:
       - name: Set build tags
         run: |
           set -xeuo pipefail
-          TAGS='with_gvisor,with_quic,with_dhcp,with_wireguard,with_utls,with_acme,with_clash_api,with_tailscale'
+          if [[ "${{ matrix.naive }}" == "true" ]]; then
+            TAGS="$(cat release/DEFAULT_BUILD_TAGS),with_musl"
+          else
+            TAGS=$(cat release/DEFAULT_BUILD_TAGS_OTHERS)
+          fi
           echo "BUILD_TAGS=${TAGS}" >> "${GITHUB_ENV}"
-      - name: Build
+      - name: Set shared ldflags
+        run: |
+          echo "LDFLAGS_SHARED=$(cat release/LDFLAGS)" >> "${GITHUB_ENV}"
+      - name: Build (naive)
+        if: matrix.naive
         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 }}' \
+          -ldflags "-X 'github.com/sagernet/sing-box/constant.Version=${{ needs.calculate_version.outputs.version }}' ${LDFLAGS_SHARED} -s -w -buildid=" \
+          ./cmd/sing-box
+        env:
+          CGO_ENABLED: "1"
+          GOOS: linux
+          GOARCH: ${{ matrix.arch }}
+          GOARM: ${{ matrix.goarm }}
+          GOMIPS: ${{ matrix.gomips }}
+          GOMIPS64: ${{ matrix.gomips }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Build (non-naive)
+        if: ${{ ! matrix.naive }}
+        run: |
+          set -xeuo pipefail
+          mkdir -p dist
+          go build -v -trimpath -o dist/sing-box -tags "${BUILD_TAGS}" \
+          -ldflags "-X 'github.com/sagernet/sing-box/constant.Version=${{ needs.calculate_version.outputs.version }}' ${LDFLAGS_SHARED} -s -w -buildid=" \
           ./cmd/sing-box
         env:
           CGO_ENABLED: "0"
@@ -98,14 +162,8 @@ jobs:
       - 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" >> "$GITHUB_ENV"
+      - name: Detect track
+        run: bash .github/detect_track.sh
       - name: Set version
         run: |-
           PKG_VERSION="${{ needs.calculate_version.outputs.version }}"
@@ -166,7 +224,7 @@ jobs:
       - build
     steps:
       - name: Checkout
-        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
         with:
           fetch-depth: 0
       - name: Set tag
@@ -175,10 +233,11 @@ jobs:
           git tag v${{ needs.calculate_version.outputs.version }} -f
           echo "VERSION=${{ needs.calculate_version.outputs.version }}" >> "$GITHUB_ENV"
       - name: Download builds
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           path: dist
           merge-multiple: true
       - name: Publish packages
+        if: github.event_name != 'push'
         run: |-
           ls dist | xargs -I {} curl -F "package=@dist/{}" https://${{ secrets.FURY_TOKEN }}@push.fury.io/sagernet/

.gitignore

@@ -12,7 +12,12 @@
 /*.jar
 /*.aar
 /*.xcframework/
+/experimental/libbox/*.aar
+/experimental/libbox/*.xcframework/
+/experimental/libbox/*.nupkg
 .DS_Store
 /config.d/
 /venv/
-
+CLAUDE.md
+AGENTS.md
+/.claude/

.golangci.yml

@@ -1,27 +1,6 @@
-linters:
-  disable-all: true
-  enable:
-    - gofumpt
-    - govet
-    - gci
-    - staticcheck
-    - paralleltest
-    - ineffassign
-
-linters-settings:
-  gci:
-    custom-order: true
-    sections:
-      - standard
-      - prefix(github.com/sagernet/)
-      - default
-  staticcheck:
-    checks:
-      - all
-      - -SA1003
-
+version: "2"
 run:
-  go: "1.23"
+  go: "1.25"
   build-tags:
     - with_gvisor
     - with_quic
@@ -30,7 +9,56 @@ run:
     - with_utls
     - with_acme
     - with_clash_api
-
-issues:
-  exclude-dirs:
-    - transport/simple-obfs
+    - with_tailscale
+    - with_ccm
+    - with_ocm
+    - badlinkname
+    - tfogo_checklinkname0
+linters:
+  default: none
+  enable:
+    - govet
+    - ineffassign
+    - paralleltest
+    - staticcheck
+  settings:
+    staticcheck:
+      checks:
+        - all
+        - -S1000
+        - -S1008
+        - -S1017
+        - -ST1003
+        - -QF1001
+        - -QF1003
+        - -QF1008
+  exclusions:
+    generated: lax
+    presets:
+      - comments
+      - common-false-positives
+      - legacy
+      - std-error-handling
+    paths:
+      - transport/simple-obfs
+      - third_party$
+      - builtin$
+      - examples$
+formatters:
+  enable:
+    - gci
+    - gofumpt
+  settings:
+    gci:
+      sections:
+        - standard
+        - prefix(github.com/sagernet/)
+        - default
+      custom-order: true
+  exclusions:
+    generated: lax
+    paths:
+      - transport/simple-obfs
+      - third_party$
+      - builtin$
+      - examples$

.goreleaser.fury.yaml

@@ -1,103 +0,0 @@
-project_name: sing-box
-builds:
-  - id: main
-    main: ./cmd/sing-box
-    flags:
-      - -v
-      - -trimpath
-    ldflags:
-      - -X github.com/sagernet/sing-box/constant.Version={{ .Version }}
-      - -s
-      - -buildid=
-    tags:
-      - with_gvisor
-      - with_quic
-      - with_dhcp
-      - with_wireguard
-      - with_utls
-      - with_acme
-      - with_clash_api
-      - with_tailscale
-    env:
-      - CGO_ENABLED=0
-    targets:
-      - linux_386
-      - linux_amd64_v1
-      - linux_arm64
-      - linux_arm_7
-      - linux_s390x
-      - linux_riscv64
-      - linux_mips64le
-    mod_timestamp: '{{ .CommitTimestamp }}'
-snapshot:
-  name_template: "{{ .Version }}.{{ .ShortCommit }}"
-nfpms:
-  - &template
-    id: package
-    package_name: sing-box
-    file_name_template: '{{ .ProjectName }}_{{ .Version }}_{{ .Os }}_{{ .Arch }}{{ with .Arm }}v{{ . }}{{ end }}{{ with .Mips }}_{{ . }}{{ end }}{{ if not (eq .Amd64 "v1") }}{{ .Amd64 }}{{ end }}'
-    builds:
-      - main
-    homepage: https://sing-box.sagernet.org/
-    maintainer: nekohasekai <contact-git@sekai.icu>
-    description: The universal proxy platform.
-    license: GPLv3 or later
-    formats:
-      - deb
-      - rpm
-    priority: extra
-    contents:
-      - src: release/config/config.json
-        dst: /etc/sing-box/config.json
-        type: "config|noreplace"
-
-      - src: release/config/sing-box.service
-        dst: /usr/lib/systemd/system/sing-box.service
-      - src: release/config/sing-box@.service
-        dst: /usr/lib/systemd/system/sing-box@.service
-      - src: release/config/sing-box.sysusers
-        dst: /usr/lib/sysusers.d/sing-box.conf
-      - src: release/config/sing-box.rules
-        dst: /usr/share/polkit-1/rules.d/sing-box.rules
-      - src: release/config/sing-box-split-dns.xml
-        dst: /usr/share/dbus-1/system.d/sing-box-split-dns.conf
-
-      - src: release/completions/sing-box.bash
-        dst: /usr/share/bash-completion/completions/sing-box.bash
-      - src: release/completions/sing-box.fish
-        dst: /usr/share/fish/vendor_completions.d/sing-box.fish
-      - src: release/completions/sing-box.zsh
-        dst: /usr/share/zsh/site-functions/_sing-box
-
-      - src: LICENSE
-        dst: /usr/share/licenses/sing-box/LICENSE
-    deb:
-      signature:
-        key_file: "{{ .Env.NFPM_KEY_PATH }}"
-      fields:
-        Bugs: https://github.com/SagerNet/sing-box/issues
-    rpm:
-      signature:
-        key_file: "{{ .Env.NFPM_KEY_PATH }}"
-    conflicts:
-      - sing-box-beta
-  - id: package_beta
-    <<: *template
-    package_name: sing-box-beta
-    file_name_template: '{{ .ProjectName }}-beta_{{ .Version }}_{{ .Os }}_{{ .Arch }}{{ with .Arm }}v{{ . }}{{ end }}{{ with .Mips }}_{{ . }}{{ end }}{{ if not (eq .Amd64 "v1") }}{{ .Amd64 }}{{ end }}'
-    formats:
-      - deb
-      - rpm
-    conflicts:
-      - sing-box
-release:
-  disable: true
-furies:
-  - account: sagernet
-    ids:
-      - package
-    disable: "{{ not (not .Prerelease) }}"
-  - account: sagernet
-    ids:
-      - package_beta
-    disable: "{{ not .Prerelease }}"

.goreleaser.yaml

@@ -1,213 +0,0 @@
-version: 2
-project_name: sing-box
-builds:
-  - &template
-    id: main
-    main: ./cmd/sing-box
-    flags:
-      - -v
-      - -trimpath
-    ldflags:
-      - -X github.com/sagernet/sing-box/constant.Version={{ .Version }}
-      - -s
-      - -buildid=
-    tags:
-      - with_gvisor
-      - with_quic
-      - with_dhcp
-      - with_wireguard
-      - with_utls
-      - with_acme
-      - with_clash_api
-      - with_tailscale
-    env:
-      - CGO_ENABLED=0
-      - GOTOOLCHAIN=local
-    targets:
-      - linux_386
-      - linux_amd64_v1
-      - linux_arm64
-      - linux_arm_6
-      - linux_arm_7
-      - linux_s390x
-      - linux_riscv64
-      - linux_mips64le
-      - windows_amd64_v1
-      - windows_386
-      - windows_arm64
-      - darwin_amd64_v1
-      - darwin_arm64
-    mod_timestamp: '{{ .CommitTimestamp }}'
-  - id: legacy
-    <<: *template
-    tags:
-      - with_gvisor
-      - with_quic
-      - with_dhcp
-      - with_wireguard
-      - with_utls
-      - with_acme
-      - with_clash_api
-      - with_tailscale
-    env:
-      - CGO_ENABLED=0
-      - GOROOT={{ .Env.GOPATH }}/go_legacy
-    tool: "{{ .Env.GOPATH }}/go_legacy/bin/go"
-    targets:
-      - windows_amd64_v1
-      - windows_386
-  - id: android
-    <<: *template
-    env:
-      - CGO_ENABLED=1
-      - GOTOOLCHAIN=local
-    overrides:
-      - goos: android
-        goarch: arm
-        goarm: 7
-        env:
-          - CC=armv7a-linux-androideabi21-clang
-          - CXX=armv7a-linux-androideabi21-clang++
-      - goos: android
-        goarch: arm64
-        env:
-          - CC=aarch64-linux-android21-clang
-          - CXX=aarch64-linux-android21-clang++
-      - goos: android
-        goarch: 386
-        env:
-          - CC=i686-linux-android21-clang
-          - CXX=i686-linux-android21-clang++
-      - goos: android
-        goarch: amd64
-        goamd64: v1
-        env:
-          - CC=x86_64-linux-android21-clang
-          - CXX=x86_64-linux-android21-clang++
-    targets:
-      - android_arm_7
-      - android_arm64
-      - android_386
-      - android_amd64
-archives:
-  - &template
-    id: archive
-    builds:
-      - main
-      - android
-    formats:
-      - tar.gz
-    format_overrides:
-      - goos: windows
-        formats:
-          - zip
-    wrap_in_directory: true
-    files:
-      - LICENSE
-    name_template: '{{ .ProjectName }}-{{ .Version }}-{{ .Os }}-{{ .Arch }}{{ with .Arm }}v{{ . }}{{ end }}{{ if and .Mips (not (eq .Mips "hardfloat")) }}_{{ .Mips }}{{ end }}{{ if not (eq .Amd64 "v1") }}{{ .Amd64 }}{{ end }}'
-  - id: archive-legacy
-    <<: *template
-    builds:
-      - legacy
-    name_template: '{{ .ProjectName }}-{{ .Version }}-{{ .Os }}-{{ .Arch }}-legacy'
-nfpms:
-  - id: package
-    package_name: sing-box
-    file_name_template: '{{ .ProjectName }}_{{ .Version }}_{{ .Os }}_{{ .Arch }}{{ with .Arm }}v{{ . }}{{ end }}{{ if and .Mips (not (eq .Mips "hardfloat")) }}_{{ .Mips }}{{ end }}{{ if not (eq .Amd64 "v1") }}{{ .Amd64 }}{{ end }}'
-    builds:
-      - main
-    homepage: https://sing-box.sagernet.org/
-    maintainer: nekohasekai <contact-git@sekai.icu>
-    description: The universal proxy platform.
-    license: GPLv3 or later
-    formats:
-      - deb
-      - rpm
-      - archlinux
-#      - apk
-#      - ipk
-    priority: extra
-    contents:
-      - src: release/config/config.json
-        dst: /etc/sing-box/config.json
-        type: "config|noreplace"
-
-      - src: release/config/sing-box.service
-        dst: /usr/lib/systemd/system/sing-box.service
-      - src: release/config/sing-box@.service
-        dst: /usr/lib/systemd/system/sing-box@.service
-      - src: release/config/sing-box.sysusers
-        dst: /usr/lib/sysusers.d/sing-box.conf
-      - src: release/config/sing-box.rules
-        dst: /usr/share/polkit-1/rules.d/sing-box.rules
-      - src: release/config/sing-box-split-dns.xml
-        dst: /usr/share/dbus-1/system.d/sing-box-split-dns.conf
-
-      - src: release/completions/sing-box.bash
-        dst: /usr/share/bash-completion/completions/sing-box.bash
-      - src: release/completions/sing-box.fish
-        dst: /usr/share/fish/vendor_completions.d/sing-box.fish
-      - src: release/completions/sing-box.zsh
-        dst: /usr/share/zsh/site-functions/_sing-box
-
-      - src: LICENSE
-        dst: /usr/share/licenses/sing-box/LICENSE
-    deb:
-      signature:
-        key_file: "{{ .Env.NFPM_KEY_PATH }}"
-      fields:
-        Bugs: https://github.com/SagerNet/sing-box/issues
-    rpm:
-      signature:
-        key_file: "{{ .Env.NFPM_KEY_PATH }}"
-    overrides:
-      apk:
-        contents:
-          - src: release/config/config.json
-            dst: /etc/sing-box/config.json
-            type: config
-
-          - src: release/config/sing-box.initd
-            dst: /etc/init.d/sing-box
-
-          - src: release/completions/sing-box.bash
-            dst: /usr/share/bash-completion/completions/sing-box.bash
-          - src: release/completions/sing-box.fish
-            dst: /usr/share/fish/vendor_completions.d/sing-box.fish
-          - src: release/completions/sing-box.zsh
-            dst: /usr/share/zsh/site-functions/_sing-box
-
-          - src: LICENSE
-            dst: /usr/share/licenses/sing-box/LICENSE
-      ipk:
-        contents:
-          - src: release/config/config.json
-            dst: /etc/sing-box/config.json
-            type: config
-
-          - src: release/config/openwrt.init
-            dst: /etc/init.d/sing-box
-          - src: release/config/openwrt.conf
-            dst: /etc/config/sing-box
-source:
-  enabled: false
-  name_template: '{{ .ProjectName }}-{{ .Version }}.source'
-  prefix_template: '{{ .ProjectName }}-{{ .Version }}/'
-checksum:
-  disable: true
-  name_template: '{{ .ProjectName }}-{{ .Version }}.checksum'
-signs:
-  - artifacts: checksum
-release:
-  github:
-    owner: SagerNet
-    name: sing-box
-  draft: true
-  prerelease: auto
-  mode: replace
-  ids:
-    - archive
-    - package
-  skip_upload: true
-partial:
-  by: target

Dockerfile

@@ -1,4 +1,4 @@
-FROM --platform=$BUILDPLATFORM golang:1.24-alpine AS builder
+FROM --platform=$BUILDPLATFORM golang:1.25-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
@@ -12,16 +12,15 @@ RUN set -ex \
     && apk add git build-base \
     && export COMMIT=$(git rev-parse --short HEAD) \
     && export VERSION=$(go run ./cmd/internal/read_tag) \
-    && go build -v -trimpath -tags \
-        "with_gvisor,with_quic,with_dhcp,with_wireguard,with_utls,with_acme,with_clash_api,with_tailscale" \
+    && export TAGS=$(cat release/DEFAULT_BUILD_TAGS_OTHERS) \
+    && export LDFLAGS_SHARED=$(cat release/LDFLAGS) \
+    && go build -v -trimpath -tags "$TAGS" \
         -o /go/bin/sing-box \
-        -ldflags "-X \"github.com/sagernet/sing-box/constant.Version=$VERSION\" -s -w -buildid=" \
+        -ldflags "-X \"github.com/sagernet/sing-box/constant.Version=$VERSION\" $LDFLAGS_SHARED -s -w -buildid=" \
         ./cmd/sing-box
 FROM --platform=$TARGETPLATFORM alpine AS dist
 LABEL maintainer="nekohasekai <contact-git@sekai.icu>"
 RUN set -ex \
-    && apk upgrade \
-    && apk add bash tzdata ca-certificates nftables \
-    && rm -rf /var/cache/apk/*
+    && apk add --no-cache --upgrade bash tzdata ca-certificates nftables
 COPY --from=builder /go/bin/sing-box /usr/local/bin/sing-box
 ENTRYPOINT ["sing-box"]

Dockerfile.binary

@@ -0,0 +1,14 @@
+ARG BASE_IMAGE=alpine
+FROM ${BASE_IMAGE}
+ARG TARGETARCH
+ARG TARGETVARIANT
+LABEL maintainer="nekohasekai <contact-git@sekai.icu>"
+RUN set -ex \
+    && if command -v apk > /dev/null; then \
+        apk add --no-cache --upgrade bash tzdata ca-certificates nftables; \
+    else \
+        apt-get update && apt-get install -y --no-install-recommends bash tzdata ca-certificates nftables \
+        && rm -rf /var/lib/apt/lists/*; \
+    fi
+COPY sing-box-${TARGETARCH}${TARGETVARIANT} /usr/local/bin/sing-box
+ENTRYPOINT ["sing-box"]

Makefile

@@ -1,15 +1,18 @@
 NAME = sing-box
 COMMIT = $(shell git rev-parse --short HEAD)
-TAGS ?= with_gvisor,with_quic,with_dhcp,with_wireguard,with_utls,with_acme,with_clash_api,with_tailscale
+TAGS ?= $(shell cat release/DEFAULT_BUILD_TAGS_OTHERS)
 
 GOHOSTOS = $(shell go env GOHOSTOS)
 GOHOSTARCH = $(shell go env GOHOSTARCH)
 VERSION=$(shell CGO_ENABLED=0 GOOS=$(GOHOSTOS) GOARCH=$(GOHOSTARCH) go run github.com/sagernet/sing-box/cmd/internal/read_tag@latest)
 
-PARAMS = -v -trimpath -ldflags "-X 'github.com/sagernet/sing-box/constant.Version=$(VERSION)' -s -w -buildid="
+LDFLAGS_SHARED = $(shell cat release/LDFLAGS)
+PARAMS = -v -trimpath -ldflags "-X 'github.com/sagernet/sing-box/constant.Version=$(VERSION)' $(LDFLAGS_SHARED) -s -w -buildid="
 MAIN_PARAMS = $(PARAMS) -tags "$(TAGS)"
 MAIN = ./cmd/sing-box
 PREFIX ?= $(shell go env GOPATH)
+SING_FFI ?= sing-ffi
+LIBBOX_FFI_CONFIG ?= ./experimental/libbox/ffi.json
 
 .PHONY: test release docs build
 
@@ -17,6 +20,10 @@ build:
 	export GOTOOLCHAIN=local && \
 	go build $(MAIN_PARAMS) $(MAIN)
 
+race:
+	export GOTOOLCHAIN=local && \
+	go build -race $(MAIN_PARAMS) $(MAIN)
+
 ci_build:
 	export GOTOOLCHAIN=local && \
 	go build $(PARAMS) $(MAIN) && \
@@ -33,6 +40,9 @@ fmt:
 	@gofmt -s -w .
 	@gci write --custom-order -s standard -s "prefix(github.com/sagernet/)" -s "default" .
 
+fmt_docs:
+	go run ./cmd/internal/format_docs
+
 fmt_install:
 	go install -v mvdan.cc/gofumpt@latest
 	go install -v github.com/daixiang0/gci@latest
@@ -45,7 +55,7 @@ lint:
 	GOOS=freebsd golangci-lint run ./...
 
 lint_install:
-	go install -v github.com/golangci/golangci-lint/cmd/golangci-lint@latest
+	go install -v github.com/golangci/golangci-lint/v2/cmd/golangci-lint@latest
 
 proto:
 	@go run ./cmd/internal/protogen
@@ -82,12 +92,12 @@ update_android_version:
 	go run ./cmd/internal/update_android_version
 
 build_android:
-	cd ../sing-box-for-android && ./gradlew :app:clean :app:assemblePlayRelease :app:assembleOtherRelease && ./gradlew --stop
+	cd ../sing-box-for-android && ./gradlew :app:clean :app:assembleOtherRelease :app:assembleOtherLegacyRelease && ./gradlew --stop
 
 upload_android:
 	mkdir -p dist/release_android
-	cp ../sing-box-for-android/app/build/outputs/apk/play/release/*.apk dist/release_android
-	cp ../sing-box-for-android/app/build/outputs/apk/other/release/*-universal.apk dist/release_android
+	cp ../sing-box-for-android/app/build/outputs/apk/other/release/*.apk dist/release_android
+	cp ../sing-box-for-android/app/build/outputs/apk/otherLegacy/release/*.apk dist/release_android
 	ghr --replace --draft --prerelease -p 5 "v${VERSION}" dist/release_android
 	rm -rf dist/release_android
 
@@ -102,7 +112,7 @@ build_ios:
 	cd ../sing-box-for-apple && \
 	rm -rf build/SFI.xcarchive && \
 	xcodebuild clean -scheme SFI && \
-	xcodebuild archive -scheme SFI -configuration Release -destination 'generic/platform=iOS' -archivePath build/SFI.xcarchive -allowProvisioningUpdates
+	xcodebuild archive -scheme SFI -configuration Release -destination 'generic/platform=iOS' -archivePath build/SFI.xcarchive -allowProvisioningUpdates | xcbeautify | grep -A 10 -e "Archive Succeeded" -e "ARCHIVE FAILED" -e "❌"
 
 upload_ios_app_store:
 	cd ../sing-box-for-apple && \
@@ -123,7 +133,7 @@ release_ios: build_ios upload_ios_app_store
 build_macos:
 	cd ../sing-box-for-apple && \
 	rm -rf build/SFM.xcarchive && \
-	xcodebuild archive -scheme SFM -configuration Release -archivePath build/SFM.xcarchive -allowProvisioningUpdates
+	xcodebuild archive -scheme SFM -configuration Release -archivePath build/SFM.xcarchive -allowProvisioningUpdates | xcbeautify | grep -A 10 -e "Archive Succeeded" -e "ARCHIVE FAILED" -e "❌"
 
 upload_macos_app_store:
 	cd ../sing-box-for-apple && \
@@ -132,54 +142,50 @@ upload_macos_app_store:
 release_macos: build_macos upload_macos_app_store
 
 build_macos_standalone:
-	cd ../sing-box-for-apple && \
-	rm -rf build/SFM.System.xcarchive && \
-	xcodebuild archive -scheme SFM.System -configuration Release -archivePath build/SFM.System.xcarchive -allowProvisioningUpdates
+	$(MAKE) -C ../sing-box-for-apple archive_macos_standalone
 
 build_macos_dmg:
-	rm -rf dist/SFM
-	mkdir -p dist/SFM
-	cd ../sing-box-for-apple && \
-	rm -rf build/SFM.System && \
-	rm -rf build/SFM.dmg && \
-	xcodebuild -exportArchive \
-		-archivePath "build/SFM.System.xcarchive" \
-		-exportOptionsPlist SFM.System/Export.plist -allowProvisioningUpdates \
-		-exportPath "build/SFM.System" && \
-	create-dmg \
-		--volname "sing-box" \
-		--volicon "build/SFM.System/SFM.app/Contents/Resources/AppIcon.icns" \
-		--icon "SFM.app" 0 0 \
- 		--hide-extension "SFM.app" \
- 		--app-drop-link 0 0 \
- 		--skip-jenkins \
-		"../sing-box/dist/SFM/SFM.dmg" "build/SFM.System/SFM.app"
+	$(MAKE) -C ../sing-box-for-apple build_macos_dmg
+
+build_macos_pkg:
+	$(MAKE) -C ../sing-box-for-apple build_macos_pkg
 
 notarize_macos_dmg:
-	xcrun notarytool submit "dist/SFM/SFM.dmg" --wait \
-	  --keychain-profile "notarytool-password" \
-  	  --no-s3-acceleration
+	$(MAKE) -C ../sing-box-for-apple notarize_macos_dmg
+
+notarize_macos_pkg:
+	$(MAKE) -C ../sing-box-for-apple notarize_macos_pkg
 
 upload_macos_dmg:
-	cd dist/SFM && \
-	cp SFM.dmg "SFM-${VERSION}-universal.dmg" && \
-	ghr --replace --draft --prerelease "v${VERSION}" "SFM-${VERSION}-universal.dmg"
+	mkdir -p dist/SFM
+	cp ../sing-box-for-apple/build/SFM-Apple.dmg "dist/SFM/SFM-${VERSION}-Apple.dmg"
+	cp ../sing-box-for-apple/build/SFM-Intel.dmg "dist/SFM/SFM-${VERSION}-Intel.dmg"
+	cp ../sing-box-for-apple/build/SFM-Universal.dmg "dist/SFM/SFM-${VERSION}-Universal.dmg"
+	ghr --replace --draft --prerelease "v${VERSION}" "dist/SFM/SFM-${VERSION}-Apple.dmg"
+	ghr --replace --draft --prerelease "v${VERSION}" "dist/SFM/SFM-${VERSION}-Intel.dmg"
+	ghr --replace --draft --prerelease "v${VERSION}" "dist/SFM/SFM-${VERSION}-Universal.dmg"
+
+upload_macos_pkg:
+	mkdir -p dist/SFM
+	cp ../sing-box-for-apple/build/SFM-Apple.pkg "dist/SFM/SFM-${VERSION}-Apple.pkg"
+	cp ../sing-box-for-apple/build/SFM-Intel.pkg "dist/SFM/SFM-${VERSION}-Intel.pkg"
+	cp ../sing-box-for-apple/build/SFM-Universal.pkg "dist/SFM/SFM-${VERSION}-Universal.pkg"
+	ghr --replace --draft --prerelease "v${VERSION}" "dist/SFM/SFM-${VERSION}-Apple.pkg"
+	ghr --replace --draft --prerelease "v${VERSION}" "dist/SFM/SFM-${VERSION}-Intel.pkg"
+	ghr --replace --draft --prerelease "v${VERSION}" "dist/SFM/SFM-${VERSION}-Universal.pkg"
 
 upload_macos_dsyms:
-	pushd ../sing-box-for-apple/build/SFM.System.xcarchive && \
-	zip -r SFM.dSYMs.zip dSYMs && \
-	mv SFM.dSYMs.zip ../../../sing-box/dist/SFM && \
-	popd && \
-	cd dist/SFM && \
-	cp SFM.dSYMs.zip "SFM-${VERSION}-universal.dSYMs.zip" && \
-	ghr --replace --draft --prerelease "v${VERSION}" "SFM-${VERSION}-universal.dSYMs.zip"
+	mkdir -p dist/SFM
+	cd ../sing-box-for-apple/build/SFM.System-universal.xcarchive && zip -r SFM.dSYMs.zip dSYMs
+	cp ../sing-box-for-apple/build/SFM.System-universal.xcarchive/SFM.dSYMs.zip "dist/SFM/SFM-${VERSION}.dSYMs.zip"
+	ghr --replace --draft --prerelease "v${VERSION}" "dist/SFM/SFM-${VERSION}.dSYMs.zip"
 
-release_macos_standalone: build_macos_standalone build_macos_dmg notarize_macos_dmg upload_macos_dmg upload_macos_dsyms
+release_macos_standalone: build_macos_pkg notarize_macos_pkg upload_macos_pkg upload_macos_dsyms
 
 build_tvos:
 	cd ../sing-box-for-apple && \
 	rm -rf build/SFT.xcarchive && \
-	xcodebuild archive -scheme SFT -configuration Release -archivePath build/SFT.xcarchive -allowProvisioningUpdates
+	xcodebuild archive -scheme SFT -configuration Release -archivePath build/SFT.xcarchive -allowProvisioningUpdates | xcbeautify | grep -A 10 -e "Archive Succeeded" -e "ARCHIVE FAILED" -e "❌"
 
 upload_tvos_app_store:
 	cd ../sing-box-for-apple && \
@@ -203,12 +209,12 @@ update_apple_version:
 update_macos_version:
 	MACOS_PROJECT_VERSION=$(shell go run -v ./cmd/internal/app_store_connect next_macos_project_version) go run ./cmd/internal/update_apple_version
 
-release_apple: lib_ios update_apple_version release_ios release_macos release_tvos release_macos_standalone
+release_apple: lib_apple update_apple_version release_ios release_macos release_tvos release_macos_standalone
 
 release_apple_beta: update_apple_version release_ios release_macos release_tvos
 
 publish_testflight:
-	go run -v ./cmd/internal/app_store_connect publish_testflight
+	go run -v ./cmd/internal/app_store_connect publish_testflight $(filter-out $@,$(MAKECMDGOALS))
 
 prepare_app_store:
 	go run -v ./cmd/internal/app_store_connect prepare_app_store
@@ -231,22 +237,21 @@ test_stdio:
 lib_android:
 	go run ./cmd/internal/build_libbox -target android
 
-lib_android_debug:
-	go run ./cmd/internal/build_libbox -target android -debug
-
 lib_apple:
 	go run ./cmd/internal/build_libbox -target apple
 
-lib_ios:
-	go run ./cmd/internal/build_libbox -target apple -platform ios -debug
+lib_windows:
+	$(SING_FFI) generate --config $(LIBBOX_FFI_CONFIG) --platform-type csharp
 
-lib:
-	go run ./cmd/internal/build_libbox -target android
-	go run ./cmd/internal/build_libbox -target ios
+lib_android_new:
+	$(SING_FFI) generate --config $(LIBBOX_FFI_CONFIG) --platform-type android
+
+lib_apple_new:
+	$(SING_FFI) generate --config $(LIBBOX_FFI_CONFIG) --platform-type apple
 
 lib_install:
-	go install -v github.com/sagernet/gomobile/cmd/gomobile@v0.1.7
-	go install -v github.com/sagernet/gomobile/cmd/gobind@v0.1.7
+	go install -v github.com/sagernet/gomobile/cmd/gomobile@v0.1.12
+	go install -v github.com/sagernet/gomobile/cmd/gobind@v0.1.12
 
 docs:
 	venv/bin/mkdocs serve
@@ -255,8 +260,8 @@ publish_docs:
 	venv/bin/mkdocs gh-deploy -m "Update" --force --ignore-version --no-history
 
 docs_install:
-	python -m venv venv
-	source ./venv/bin/activate && pip install --force-reinstall mkdocs-material=="9.*" mkdocs-static-i18n=="1.2.*"
+	python3 -m venv venv
+	source ./venv/bin/activate && pip install --force-reinstall mkdocs-material=="9.7.2" mkdocs-static-i18n=="1.2.*"
 
 clean:
 	rm -rf bin dist sing-box
@@ -266,3 +271,6 @@ update:
 	git fetch
 	git reset FETCH_HEAD --hard
 	git clean -fdx
+
+%:
+	@:

README.md

@@ -1,3 +1,11 @@
+> Sponsored by [Warp](https://go.warp.dev/sing-box), built for coding with multiple AI agents
+
+<a href="https://go.warp.dev/sing-box">
+<img alt="Warp sponsorship" width="400" src="https://github.com/warpdotdev/brand-assets/raw/refs/heads/main/Github/Sponsor/Warp-Github-LG-02.png">
+</a>
+
+---
+
 # sing-box
 
 The universal proxy platform.

adapter/connections.go

@@ -9,6 +9,10 @@ import (
 
 type ConnectionManager interface {
 	Lifecycle
+	Count() int
+	CloseAll()
+	TrackConn(conn net.Conn) net.Conn
+	TrackPacketConn(conn net.PacketConn) net.PacketConn
 	NewConnection(ctx context.Context, this N.Dialer, conn net.Conn, metadata InboundContext, onClose N.CloseHandlerFunc)
 	NewPacketConnection(ctx context.Context, this N.Dialer, conn N.PacketConn, metadata InboundContext, onClose N.CloseHandlerFunc)
 }

adapter/dns.go

@@ -27,8 +27,6 @@ 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()
 }
 
@@ -70,6 +68,7 @@ type DNSTransport interface {
 	Type() string
 	Tag() string
 	Dependencies() []string
+	Reset()
 	Exchange(ctx context.Context, message *dns.Msg) (*dns.Msg, error)
 }
 

adapter/endpoint/manager.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"os"
 	"sync"
+	"time"
 
 	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-box/common/taskmonitor"
@@ -11,6 +12,7 @@ import (
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing/common"
 	E "github.com/sagernet/sing/common/exceptions"
+	F "github.com/sagernet/sing/common/format"
 )
 
 var _ adapter.EndpointManager = (*Manager)(nil)
@@ -46,10 +48,14 @@ func (m *Manager) Start(stage adapter.StartStage) error {
 		return nil
 	}
 	for _, endpoint := range m.endpoints {
+		name := "endpoint/" + endpoint.Type() + "[" + endpoint.Tag() + "]"
+		m.logger.Trace(stage, " ", name)
+		startTime := time.Now()
 		err := adapter.LegacyStart(endpoint, stage)
 		if err != nil {
-			return E.Cause(err, stage, " endpoint/", endpoint.Type(), "[", endpoint.Tag(), "]")
+			return E.Cause(err, stage, " ", name)
 		}
+		m.logger.Trace(stage, " ", name, " completed (", F.Seconds(time.Since(startTime).Seconds()), "s)")
 	}
 	return nil
 }
@@ -66,11 +72,15 @@ func (m *Manager) Close() error {
 	monitor := taskmonitor.New(m.logger, C.StopTimeout)
 	var err error
 	for _, endpoint := range endpoints {
-		monitor.Start("close endpoint/", endpoint.Type(), "[", endpoint.Tag(), "]")
+		name := "endpoint/" + endpoint.Type() + "[" + endpoint.Tag() + "]"
+		m.logger.Trace("close ", name)
+		startTime := time.Now()
+		monitor.Start("close ", name)
 		err = E.Append(err, endpoint.Close(), func(err error) error {
-			return E.Cause(err, "close endpoint/", endpoint.Type(), "[", endpoint.Tag(), "]")
+			return E.Cause(err, "close ", name)
 		})
 		monitor.Finish()
+		m.logger.Trace("close ", name, " completed (", F.Seconds(time.Since(startTime).Seconds()), "s)")
 	}
 	return nil
 }
@@ -119,11 +129,15 @@ func (m *Manager) Create(ctx context.Context, router adapter.Router, logger log.
 	m.access.Lock()
 	defer m.access.Unlock()
 	if m.started {
+		name := "endpoint/" + endpoint.Type() + "[" + endpoint.Tag() + "]"
 		for _, stage := range adapter.ListStartStages {
+			m.logger.Trace(stage, " ", name)
+			startTime := time.Now()
 			err = adapter.LegacyStart(endpoint, stage)
 			if err != nil {
-				return E.Cause(err, stage, " endpoint/", endpoint.Type(), "[", endpoint.Tag(), "]")
+				return E.Cause(err, stage, " ", name)
 			}
+			m.logger.Trace(stage, " ", name, " completed (", F.Seconds(time.Since(startTime).Seconds()), "s)")
 		}
 	}
 	if existsEndpoint, loaded := m.endpointByTag[tag]; loaded {

adapter/experimental.go

@@ -4,8 +4,10 @@ import (
 	"bytes"
 	"context"
 	"encoding/binary"
+	"io"
 	"time"
 
+	"github.com/sagernet/sing/common/observable"
 	"github.com/sagernet/sing/common/varbin"
 )
 
@@ -14,6 +16,7 @@ type ClashServer interface {
 	ConnectionTracker
 	Mode() string
 	ModeList() []string
+	SetModeUpdateHook(hook *observable.Subscriber[struct{}])
 	HistoryStorage() URLTestHistoryStorage
 }
 
@@ -23,7 +26,7 @@ type URLTestHistory struct {
 }
 
 type URLTestHistoryStorage interface {
-	SetHook(hook chan<- struct{})
+	SetHook(hook *observable.Subscriber[struct{}])
 	LoadURLTestHistory(tag string) *URLTestHistory
 	DeleteURLTestHistory(tag string)
 	StoreURLTestHistory(tag string, history *URLTestHistory)
@@ -66,7 +69,11 @@ func (s *SavedBinary) MarshalBinary() ([]byte, error) {
 	if err != nil {
 		return nil, err
 	}
-	err = varbin.Write(&buffer, binary.BigEndian, s.Content)
+	_, err = varbin.WriteUvarint(&buffer, uint64(len(s.Content)))
+	if err != nil {
+		return nil, err
+	}
+	_, err = buffer.Write(s.Content)
 	if err != nil {
 		return nil, err
 	}
@@ -74,7 +81,11 @@ func (s *SavedBinary) MarshalBinary() ([]byte, error) {
 	if err != nil {
 		return nil, err
 	}
-	err = varbin.Write(&buffer, binary.BigEndian, s.LastEtag)
+	_, err = varbin.WriteUvarint(&buffer, uint64(len(s.LastEtag)))
+	if err != nil {
+		return nil, err
+	}
+	_, err = buffer.WriteString(s.LastEtag)
 	if err != nil {
 		return nil, err
 	}
@@ -88,7 +99,12 @@ func (s *SavedBinary) UnmarshalBinary(data []byte) error {
 	if err != nil {
 		return err
 	}
-	err = varbin.Read(reader, binary.BigEndian, &s.Content)
+	contentLength, err := binary.ReadUvarint(reader)
+	if err != nil {
+		return err
+	}
+	s.Content = make([]byte, contentLength)
+	_, err = io.ReadFull(reader, s.Content)
 	if err != nil {
 		return err
 	}
@@ -98,10 +114,16 @@ func (s *SavedBinary) UnmarshalBinary(data []byte) error {
 		return err
 	}
 	s.LastUpdated = time.Unix(lastUpdated, 0)
-	err = varbin.Read(reader, binary.BigEndian, &s.LastEtag)
+	etagLength, err := binary.ReadUvarint(reader)
 	if err != nil {
 		return err
 	}
+	etagBytes := make([]byte, etagLength)
+	_, err = io.ReadFull(reader, etagBytes)
+	if err != nil {
+		return err
+	}
+	s.LastEtag = string(etagBytes)
 	return nil
 }
 

adapter/inbound.go

@@ -5,7 +5,6 @@ import (
 	"net/netip"
 	"time"
 
-	"github.com/sagernet/sing-box/common/process"
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
@@ -57,18 +56,16 @@ type InboundContext struct {
 	Domain       string
 	Client       string
 	SniffContext any
+	SnifferNames []string
 	SniffError   error
 
 	// cache
 
 	// Deprecated: implement in rule action
-	InboundDetour            string
-	LastInbound              string
-	OriginDestination        M.Socksaddr
-	RouteOriginalDestination M.Socksaddr
-	// Deprecated: to be removed
-	//nolint:staticcheck
-	InboundOptions            option.InboundOptions
+	InboundDetour             string
+	LastInbound               string
+	OriginDestination         M.Socksaddr
+	RouteOriginalDestination  M.Socksaddr
 	UDPDisableDomainUnmapping bool
 	UDPConnect                bool
 	UDPTimeout                time.Duration
@@ -84,7 +81,7 @@ type InboundContext struct {
 	DestinationAddresses []netip.Addr
 	SourceGeoIPCode      string
 	GeoIPCode            string
-	ProcessInfo          *process.Info
+	ProcessInfo          *ConnectionOwner
 	QueryType            uint16
 	FakeIP               bool
 
@@ -104,6 +101,10 @@ type InboundContext struct {
 func (c *InboundContext) ResetRuleCache() {
 	c.IPCIDRMatchSource = false
 	c.IPCIDRAcceptEmpty = false
+	c.ResetRuleMatchCache()
+}
+
+func (c *InboundContext) ResetRuleMatchCache() {
 	c.SourceAddressMatch = false
 	c.SourcePortMatch = false
 	c.DestinationAddressMatch = false
@@ -135,8 +136,7 @@ func ExtendContext(ctx context.Context) (context.Context, *InboundContext) {
 
 func OverrideContext(ctx context.Context) context.Context {
 	if metadata := ContextFrom(ctx); metadata != nil {
-		var newMetadata InboundContext
-		newMetadata = *metadata
+		newMetadata := *metadata
 		return WithContext(ctx, &newMetadata)
 	}
 	return ctx

adapter/inbound/manager.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"os"
 	"sync"
+	"time"
 
 	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-box/common/taskmonitor"
@@ -11,6 +12,7 @@ import (
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing/common"
 	E "github.com/sagernet/sing/common/exceptions"
+	F "github.com/sagernet/sing/common/format"
 )
 
 var _ adapter.InboundManager = (*Manager)(nil)
@@ -45,10 +47,14 @@ func (m *Manager) Start(stage adapter.StartStage) error {
 	inbounds := m.inbounds
 	m.access.Unlock()
 	for _, inbound := range inbounds {
+		name := "inbound/" + inbound.Type() + "[" + inbound.Tag() + "]"
+		m.logger.Trace(stage, " ", name)
+		startTime := time.Now()
 		err := adapter.LegacyStart(inbound, stage)
 		if err != nil {
-			return E.Cause(err, stage, " inbound/", inbound.Type(), "[", inbound.Tag(), "]")
+			return E.Cause(err, stage, " ", name)
 		}
+		m.logger.Trace(stage, " ", name, " completed (", F.Seconds(time.Since(startTime).Seconds()), "s)")
 	}
 	return nil
 }
@@ -65,11 +71,15 @@ func (m *Manager) Close() error {
 	monitor := taskmonitor.New(m.logger, C.StopTimeout)
 	var err error
 	for _, inbound := range inbounds {
-		monitor.Start("close inbound/", inbound.Type(), "[", inbound.Tag(), "]")
+		name := "inbound/" + inbound.Type() + "[" + inbound.Tag() + "]"
+		m.logger.Trace("close ", name)
+		startTime := time.Now()
+		monitor.Start("close ", name)
 		err = E.Append(err, inbound.Close(), func(err error) error {
-			return E.Cause(err, "close inbound/", inbound.Type(), "[", inbound.Tag(), "]")
+			return E.Cause(err, "close ", name)
 		})
 		monitor.Finish()
+		m.logger.Trace("close ", name, " completed (", F.Seconds(time.Since(startTime).Seconds()), "s)")
 	}
 	return nil
 }
@@ -121,11 +131,15 @@ func (m *Manager) Create(ctx context.Context, router adapter.Router, logger log.
 	m.access.Lock()
 	defer m.access.Unlock()
 	if m.started {
+		name := "inbound/" + inbound.Type() + "[" + inbound.Tag() + "]"
 		for _, stage := range adapter.ListStartStages {
+			m.logger.Trace(stage, " ", name)
+			startTime := time.Now()
 			err = adapter.LegacyStart(inbound, stage)
 			if err != nil {
-				return E.Cause(err, stage, " inbound/", inbound.Type(), "[", inbound.Tag(), "]")
+				return E.Cause(err, stage, " ", name)
 			}
+			m.logger.Trace(stage, " ", name, " completed (", F.Seconds(time.Since(startTime).Seconds()), "s)")
 		}
 	}
 	if existsInbound, loaded := m.inboundByTag[tag]; loaded {

adapter/lifecycle.go

@@ -1,6 +1,14 @@
 package adapter
 
-import E "github.com/sagernet/sing/common/exceptions"
+import (
+	"reflect"
+	"strings"
+	"time"
+
+	"github.com/sagernet/sing-box/log"
+	E "github.com/sagernet/sing/common/exceptions"
+	F "github.com/sagernet/sing/common/format"
+)
 
 type SimpleLifecycle interface {
 	Start() error
@@ -48,22 +56,47 @@ type LifecycleService interface {
 	Lifecycle
 }
 
-func Start(stage StartStage, services ...Lifecycle) error {
+func getServiceName(service any) string {
+	if named, ok := service.(interface {
+		Type() string
+		Tag() string
+	}); ok {
+		tag := named.Tag()
+		if tag != "" {
+			return named.Type() + "[" + tag + "]"
+		}
+		return named.Type()
+	}
+	t := reflect.TypeOf(service)
+	if t.Kind() == reflect.Ptr {
+		t = t.Elem()
+	}
+	return strings.ToLower(t.Name())
+}
+
+func Start(logger log.ContextLogger, stage StartStage, services ...Lifecycle) error {
 	for _, service := range services {
+		name := getServiceName(service)
+		logger.Trace(stage, " ", name)
+		startTime := time.Now()
 		err := service.Start(stage)
 		if err != nil {
 			return err
 		}
+		logger.Trace(stage, " ", name, " completed (", F.Seconds(time.Since(startTime).Seconds()), "s)")
 	}
 	return nil
 }
 
-func StartNamed(stage StartStage, services []LifecycleService) error {
+func StartNamed(logger log.ContextLogger, stage StartStage, services []LifecycleService) error {
 	for _, service := range services {
+		logger.Trace(stage, " ", service.Name())
+		startTime := time.Now()
 		err := service.Start(stage)
 		if err != nil {
 			return E.Cause(err, stage.String(), " ", service.Name())
 		}
+		logger.Trace(stage, " ", service.Name(), " completed (", F.Seconds(time.Since(startTime).Seconds()), "s)")
 	}
 	return nil
 }

adapter/network.go

@@ -10,6 +10,7 @@ import (
 
 type NetworkManager interface {
 	Lifecycle
+	Initialize(ruleSets []RuleSet)
 	InterfaceFinder() control.InterfaceFinder
 	UpdateInterfaces() error
 	DefaultNetworkInterface() *NetworkInterface
@@ -20,12 +21,14 @@ type NetworkManager interface {
 	DefaultOptions() NetworkOptions
 	RegisterAutoRedirectOutputMark(mark uint32) error
 	AutoRedirectOutputMark() uint32
+	AutoRedirectOutputMarkFunc() control.Func
 	NetworkMonitor() tun.NetworkUpdateMonitor
 	InterfaceMonitor() tun.DefaultInterfaceMonitor
 	PackageManager() tun.PackageManager
+	NeedWIFIState() bool
 	WIFIState() WIFIState
-	ResetNetwork()
 	UpdateWIFIState()
+	ResetNetwork()
 }
 
 type NetworkOptions struct {

adapter/outbound.go

@@ -2,9 +2,12 @@ package adapter
 
 import (
 	"context"
+	"net/netip"
+	"time"
 
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
+	"github.com/sagernet/sing-tun"
 	N "github.com/sagernet/sing/common/network"
 )
 
@@ -18,6 +21,17 @@ type Outbound interface {
 	N.Dialer
 }
 
+type OutboundWithPreferredRoutes interface {
+	Outbound
+	PreferredDomain(domain string) bool
+	PreferredAddress(address netip.Addr) bool
+}
+
+type DirectRouteOutbound interface {
+	Outbound
+	NewDirectRouteConnection(metadata InboundContext, routeContext tun.DirectRouteContext, timeout time.Duration) (tun.DirectRouteDestination, error)
+}
+
 type OutboundRegistry interface {
 	option.OutboundOptionsRegistry
 	CreateOutbound(ctx context.Context, router Router, logger log.ContextLogger, tag string, outboundType string, options any) (Outbound, error)

adapter/outbound/manager.go

@@ -6,6 +6,7 @@ import (
 	"os"
 	"strings"
 	"sync"
+	"time"
 
 	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-box/common/taskmonitor"
@@ -13,6 +14,7 @@ import (
 	"github.com/sagernet/sing-box/log"
 	"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"
 )
 
@@ -30,7 +32,7 @@ type Manager struct {
 	outboundByTag           map[string]adapter.Outbound
 	dependByTag             map[string][]string
 	defaultOutbound         adapter.Outbound
-	defaultOutboundFallback adapter.Outbound
+	defaultOutboundFallback func() (adapter.Outbound, error)
 }
 
 func NewManager(logger logger.ContextLogger, registry adapter.OutboundRegistry, endpoint adapter.EndpointManager, defaultTag string) *Manager {
@@ -44,7 +46,7 @@ func NewManager(logger logger.ContextLogger, registry adapter.OutboundRegistry,
 	}
 }
 
-func (m *Manager) Initialize(defaultOutboundFallback adapter.Outbound) {
+func (m *Manager) Initialize(defaultOutboundFallback func() (adapter.Outbound, error)) {
 	m.defaultOutboundFallback = defaultOutboundFallback
 }
 
@@ -55,23 +57,40 @@ func (m *Manager) Start(stage adapter.StartStage) error {
 	}
 	m.started = true
 	m.stage = stage
-	outbounds := m.outbounds
-	m.access.Unlock()
 	if stage == adapter.StartStateStart {
 		if m.defaultTag != "" && m.defaultOutbound == nil {
 			defaultEndpoint, loaded := m.endpoint.Get(m.defaultTag)
 			if !loaded {
+				m.access.Unlock()
 				return E.New("default outbound not found: ", m.defaultTag)
 			}
 			m.defaultOutbound = defaultEndpoint
 		}
+		if m.defaultOutbound == nil {
+			directOutbound, err := m.defaultOutboundFallback()
+			if err != nil {
+				m.access.Unlock()
+				return E.Cause(err, "create direct outbound for fallback")
+			}
+			m.outbounds = append(m.outbounds, directOutbound)
+			m.outboundByTag[directOutbound.Tag()] = directOutbound
+			m.defaultOutbound = directOutbound
+		}
+		outbounds := m.outbounds
+		m.access.Unlock()
 		return m.startOutbounds(append(outbounds, common.Map(m.endpoint.Endpoints(), func(it adapter.Endpoint) adapter.Outbound { return it })...))
 	} else {
+		outbounds := m.outbounds
+		m.access.Unlock()
 		for _, outbound := range outbounds {
+			name := "outbound/" + outbound.Type() + "[" + outbound.Tag() + "]"
+			m.logger.Trace(stage, " ", name)
+			startTime := time.Now()
 			err := adapter.LegacyStart(outbound, stage)
 			if err != nil {
-				return E.Cause(err, stage, " outbound/", outbound.Type(), "[", outbound.Tag(), "]")
+				return E.Cause(err, stage, " ", name)
 			}
+			m.logger.Trace(stage, " ", name, " completed (", F.Seconds(time.Since(startTime).Seconds()), "s)")
 		}
 	}
 	return nil
@@ -96,22 +115,29 @@ func (m *Manager) startOutbounds(outbounds []adapter.Outbound) error {
 			}
 			started[outboundTag] = true
 			canContinue = true
+			name := "outbound/" + outboundToStart.Type() + "[" + outboundTag + "]"
 			if starter, isStarter := outboundToStart.(adapter.Lifecycle); isStarter {
-				monitor.Start("start outbound/", outboundToStart.Type(), "[", outboundTag, "]")
+				m.logger.Trace("start ", name)
+				startTime := time.Now()
+				monitor.Start("start ", name)
 				err := starter.Start(adapter.StartStateStart)
 				monitor.Finish()
 				if err != nil {
-					return E.Cause(err, "start outbound/", outboundToStart.Type(), "[", outboundTag, "]")
+					return E.Cause(err, "start ", name)
 				}
+				m.logger.Trace("start ", name, " completed (", F.Seconds(time.Since(startTime).Seconds()), "s)")
 			} else if starter, isStarter := outboundToStart.(interface {
 				Start() error
 			}); isStarter {
-				monitor.Start("start outbound/", outboundToStart.Type(), "[", outboundTag, "]")
+				m.logger.Trace("start ", name)
+				startTime := time.Now()
+				monitor.Start("start ", name)
 				err := starter.Start()
 				monitor.Finish()
 				if err != nil {
-					return E.Cause(err, "start outbound/", outboundToStart.Type(), "[", outboundTag, "]")
+					return E.Cause(err, "start ", name)
 				}
+				m.logger.Trace("start ", name, " completed (", F.Seconds(time.Since(startTime).Seconds()), "s)")
 			}
 		}
 		if len(started) == len(outbounds) {
@@ -158,11 +184,15 @@ func (m *Manager) Close() error {
 	var err error
 	for _, outbound := range outbounds {
 		if closer, isCloser := outbound.(io.Closer); isCloser {
-			monitor.Start("close outbound/", outbound.Type(), "[", outbound.Tag(), "]")
+			name := "outbound/" + outbound.Type() + "[" + outbound.Tag() + "]"
+			m.logger.Trace("close ", name)
+			startTime := time.Now()
+			monitor.Start("close ", name)
 			err = E.Append(err, closer.Close(), func(err error) error {
-				return E.Cause(err, "close outbound/", outbound.Type(), "[", outbound.Tag(), "]")
+				return E.Cause(err, "close ", name)
 			})
 			monitor.Finish()
+			m.logger.Trace("close ", name, " completed (", F.Seconds(time.Since(startTime).Seconds()), "s)")
 		}
 	}
 	return nil
@@ -187,11 +217,7 @@ func (m *Manager) Outbound(tag string) (adapter.Outbound, bool) {
 func (m *Manager) Default() adapter.Outbound {
 	m.access.RLock()
 	defer m.access.RUnlock()
-	if m.defaultOutbound != nil {
-		return m.defaultOutbound
-	} else {
-		return m.defaultOutboundFallback
-	}
+	return m.defaultOutbound
 }
 
 func (m *Manager) Remove(tag string) error {
@@ -247,11 +273,15 @@ func (m *Manager) Create(ctx context.Context, router adapter.Router, logger log.
 		return err
 	}
 	if m.started {
+		name := "outbound/" + outbound.Type() + "[" + outbound.Tag() + "]"
 		for _, stage := range adapter.ListStartStages {
+			m.logger.Trace(stage, " ", name)
+			startTime := time.Now()
 			err = adapter.LegacyStart(outbound, stage)
 			if err != nil {
-				return E.Cause(err, stage, " outbound/", outbound.Type(), "[", outbound.Tag(), "]")
+				return E.Cause(err, stage, " ", name)
 			}
+			m.logger.Trace(stage, " ", name, " completed (", F.Seconds(time.Since(startTime).Seconds()), "s)")
 		}
 	}
 	m.access.Lock()

adapter/platform.go

@@ -0,0 +1,70 @@
+package adapter
+
+import (
+	"github.com/sagernet/sing-box/option"
+	"github.com/sagernet/sing-tun"
+	"github.com/sagernet/sing/common/logger"
+)
+
+type PlatformInterface interface {
+	Initialize(networkManager NetworkManager) error
+
+	UsePlatformAutoDetectInterfaceControl() bool
+	AutoDetectInterfaceControl(fd int) error
+
+	UsePlatformInterface() bool
+	OpenInterface(options *tun.Options, platformOptions option.TunPlatformOptions) (tun.Tun, error)
+
+	UsePlatformDefaultInterfaceMonitor() bool
+	CreateDefaultInterfaceMonitor(logger logger.Logger) tun.DefaultInterfaceMonitor
+
+	UsePlatformNetworkInterfaces() bool
+	NetworkInterfaces() ([]NetworkInterface, error)
+
+	UnderNetworkExtension() bool
+	NetworkExtensionIncludeAllNetworks() bool
+
+	ClearDNSCache()
+	RequestPermissionForWIFIState() error
+	ReadWIFIState() WIFIState
+	SystemCertificates() []string
+
+	UsePlatformConnectionOwnerFinder() bool
+	FindConnectionOwner(request *FindConnectionOwnerRequest) (*ConnectionOwner, error)
+
+	UsePlatformWIFIMonitor() bool
+
+	UsePlatformNotification() bool
+	SendNotification(notification *Notification) error
+}
+
+type FindConnectionOwnerRequest struct {
+	IpProtocol         int32
+	SourceAddress      string
+	SourcePort         int32
+	DestinationAddress string
+	DestinationPort    int32
+}
+
+type ConnectionOwner struct {
+	ProcessID           uint32
+	UserId              int32
+	UserName            string
+	ProcessPath         string
+	AndroidPackageNames []string
+}
+
+type Notification struct {
+	Identifier string
+	TypeName   string
+	TypeID     int32
+	Title      string
+	Subtitle   string
+	Body       string
+	OpenURL    string
+}
+
+type SystemProxyStatus struct {
+	Available bool
+	Enabled   bool
+}

adapter/router.go

@@ -6,8 +6,10 @@ import (
 	"net"
 	"net/http"
 	"sync"
+	"time"
 
 	C "github.com/sagernet/sing-box/constant"
+	"github.com/sagernet/sing-tun"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
 	"github.com/sagernet/sing/common/ntp"
@@ -19,11 +21,11 @@ import (
 type Router interface {
 	Lifecycle
 	ConnectionRouter
-	PreMatch(metadata InboundContext) error
+	PreMatch(metadata InboundContext, context tun.DirectRouteContext, timeout time.Duration, supportBypass bool) (tun.DirectRouteDestination, error)
 	ConnectionRouterEx
 	RuleSet(tag string) (RuleSet, bool)
-	NeedWIFIState() bool
 	Rules() []Rule
+	NeedFindProcess() bool
 	AppendTracker(tracker ConnectionTracker)
 	ResetNetwork()
 }

adapter/service/manager.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"os"
 	"sync"
+	"time"
 
 	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-box/common/taskmonitor"
@@ -11,6 +12,7 @@ import (
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing/common"
 	E "github.com/sagernet/sing/common/exceptions"
+	F "github.com/sagernet/sing/common/format"
 )
 
 var _ adapter.ServiceManager = (*Manager)(nil)
@@ -43,10 +45,14 @@ func (m *Manager) Start(stage adapter.StartStage) error {
 	services := m.services
 	m.access.Unlock()
 	for _, service := range services {
+		name := "service/" + service.Type() + "[" + service.Tag() + "]"
+		m.logger.Trace(stage, " ", name)
+		startTime := time.Now()
 		err := adapter.LegacyStart(service, stage)
 		if err != nil {
-			return E.Cause(err, stage, " service/", service.Type(), "[", service.Tag(), "]")
+			return E.Cause(err, stage, " ", name)
 		}
+		m.logger.Trace(stage, " ", name, " completed (", F.Seconds(time.Since(startTime).Seconds()), "s)")
 	}
 	return nil
 }
@@ -63,11 +69,15 @@ func (m *Manager) Close() error {
 	monitor := taskmonitor.New(m.logger, C.StopTimeout)
 	var err error
 	for _, service := range services {
-		monitor.Start("close service/", service.Type(), "[", service.Tag(), "]")
+		name := "service/" + service.Type() + "[" + service.Tag() + "]"
+		m.logger.Trace("close ", name)
+		startTime := time.Now()
+		monitor.Start("close ", name)
 		err = E.Append(err, service.Close(), func(err error) error {
-			return E.Cause(err, "close service/", service.Type(), "[", service.Tag(), "]")
+			return E.Cause(err, "close ", name)
 		})
 		monitor.Finish()
+		m.logger.Trace("close ", name, " completed (", F.Seconds(time.Since(startTime).Seconds()), "s)")
 	}
 	return nil
 }
@@ -116,11 +126,15 @@ func (m *Manager) Create(ctx context.Context, logger log.ContextLogger, tag stri
 	m.access.Lock()
 	defer m.access.Unlock()
 	if m.started {
+		name := "service/" + service.Type() + "[" + service.Tag() + "]"
 		for _, stage := range adapter.ListStartStages {
+			m.logger.Trace(stage, " ", name)
+			startTime := time.Now()
 			err = adapter.LegacyStart(service, stage)
 			if err != nil {
-				return E.Cause(err, stage, " service/", service.Type(), "[", service.Tag(), "]")
+				return E.Cause(err, stage, " ", name)
 			}
+			m.logger.Trace(stage, " ", name, " completed (", F.Seconds(time.Since(startTime).Seconds()), "s)")
 		}
 	}
 	if existsService, loaded := m.serviceByTag[tag]; loaded {

adapter/upstream.go

@@ -73,7 +73,7 @@ func NewUpstreamContextHandlerEx(
 }
 
 func (w *myUpstreamContextHandlerWrapperEx) NewConnectionEx(ctx context.Context, conn net.Conn, source M.Socksaddr, destination M.Socksaddr, onClose N.CloseHandlerFunc) {
-	myMetadata := ContextFrom(ctx)
+	_, myMetadata := ExtendContext(ctx)
 	if source.IsValid() {
 		myMetadata.Source = source
 	}
@@ -84,7 +84,7 @@ func (w *myUpstreamContextHandlerWrapperEx) NewConnectionEx(ctx context.Context,
 }
 
 func (w *myUpstreamContextHandlerWrapperEx) NewPacketConnectionEx(ctx context.Context, conn N.PacketConn, source M.Socksaddr, destination M.Socksaddr, onClose N.CloseHandlerFunc) {
-	myMetadata := ContextFrom(ctx)
+	_, myMetadata := ExtendContext(ctx)
 	if source.IsValid() {
 		myMetadata.Source = source
 	}
@@ -146,7 +146,7 @@ type routeContextHandlerWrapperEx struct {
 }
 
 func (r *routeContextHandlerWrapperEx) NewConnectionEx(ctx context.Context, conn net.Conn, source M.Socksaddr, destination M.Socksaddr, onClose N.CloseHandlerFunc) {
-	metadata := ContextFrom(ctx)
+	_, metadata := ExtendContext(ctx)
 	if source.IsValid() {
 		metadata.Source = source
 	}
@@ -157,7 +157,7 @@ func (r *routeContextHandlerWrapperEx) NewConnectionEx(ctx context.Context, conn
 }
 
 func (r *routeContextHandlerWrapperEx) NewPacketConnectionEx(ctx context.Context, conn N.PacketConn, source M.Socksaddr, destination M.Socksaddr, onClose N.CloseHandlerFunc) {
-	metadata := ContextFrom(ctx)
+	_, metadata := ExtendContext(ctx)
 	if source.IsValid() {
 		metadata.Source = source
 	}

adapter/upstream_legacy.go

@@ -78,8 +78,8 @@ func (w *myUpstreamHandlerWrapper) NewError(ctx context.Context, err error) {
 // Deprecated: removed
 func UpstreamMetadata(metadata InboundContext) M.Metadata {
 	return M.Metadata{
-		Source:      metadata.Source,
-		Destination: metadata.Destination,
+		Source:      metadata.Source.Unwrap(),
+		Destination: metadata.Destination.Unwrap(),
 	}
 }
 

box.go

@@ -19,10 +19,8 @@ import (
 	"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/option"
 	"github.com/sagernet/sing-box/protocol/direct"
@@ -126,7 +124,10 @@ func New(options Options) (*Box, error) {
 
 	ctx = pause.WithDefaultManager(ctx)
 	experimentalOptions := common.PtrValueOrDefault(options.Experimental)
-	applyDebugOptions(common.PtrValueOrDefault(experimentalOptions.Debug))
+	err := applyDebugOptions(common.PtrValueOrDefault(experimentalOptions.Debug))
+	if err != nil {
+		return nil, err
+	}
 	var needCacheFile bool
 	var needClashAPI bool
 	var needV2RayAPI bool
@@ -139,7 +140,7 @@ func New(options Options) (*Box, error) {
 	if experimentalOptions.V2RayAPI != nil && experimentalOptions.V2RayAPI.Listen != "" {
 		needV2RayAPI = true
 	}
-	platformInterface := service.FromContext[platform.Interface](ctx)
+	platformInterface := service.FromContext[adapter.PlatformInterface](ctx)
 	var defaultLogWriter io.Writer
 	if platformInterface != nil {
 		defaultLogWriter = io.Discard
@@ -184,7 +185,7 @@ func New(options Options) (*Box, error) {
 	service.MustRegister[adapter.ServiceManager](ctx, serviceManager)
 	dnsRouter := dns.NewRouter(ctx, logFactory, dnsOptions)
 	service.MustRegister[adapter.DNSRouter](ctx, dnsRouter)
-	networkManager, err := route.NewNetworkManager(ctx, logFactory.NewLogger("network"), routeOptions)
+	networkManager, err := route.NewNetworkManager(ctx, logFactory.NewLogger("network"), routeOptions, dnsOptions)
 	if err != nil {
 		return nil, E.Cause(err, "initialize network manager")
 	}
@@ -314,22 +315,24 @@ func New(options Options) (*Box, error) {
 			return nil, E.Cause(err, "initialize service[", i, "]")
 		}
 	}
-	outboundManager.Initialize(common.Must1(
-		direct.NewOutbound(
+	outboundManager.Initialize(func() (adapter.Outbound, error) {
+		return direct.NewOutbound(
 			ctx,
 			router,
 			logFactory.NewLogger("outbound/direct"),
 			"direct",
 			option.DirectOutboundOptions{},
-		),
-	))
-	dnsTransportManager.Initialize(common.Must1(
-		local.NewTransport(
+		)
+	})
+	dnsTransportManager.Initialize(func() (adapter.DNSTransport, error) {
+		return dnsTransportRegistry.CreateDNSTransport(
 			ctx,
 			logFactory.NewLogger("dns/local"),
 			"local",
-			option.LocalDNSServerOptions{},
-		)))
+			C.DNSTypeLocal,
+			&option.LocalDNSServerOptions{},
+		)
+	})
 	if platformInterface != nil {
 		err = platformInterface.Initialize(networkManager)
 		if err != nil {
@@ -443,15 +446,15 @@ func (s *Box) preStart() error {
 	if err != nil {
 		return E.Cause(err, "start logger")
 	}
-	err = adapter.StartNamed(adapter.StartStateInitialize, s.internalService) // cache-file clash-api v2ray-api
+	err = adapter.StartNamed(s.logger, adapter.StartStateInitialize, s.internalService) // cache-file clash-api v2ray-api
 	if err != nil {
 		return err
 	}
-	err = adapter.Start(adapter.StartStateInitialize, s.network, s.dnsTransport, s.dnsRouter, s.connection, s.router, s.outbound, s.inbound, s.endpoint, s.service)
+	err = adapter.Start(s.logger, adapter.StartStateInitialize, s.network, s.dnsTransport, s.dnsRouter, s.connection, s.router, s.outbound, s.inbound, s.endpoint, s.service)
 	if err != nil {
 		return err
 	}
-	err = adapter.Start(adapter.StartStateStart, s.outbound, s.dnsTransport, s.dnsRouter, s.network, s.connection, s.router)
+	err = adapter.Start(s.logger, adapter.StartStateStart, s.outbound, s.dnsTransport, s.dnsRouter, s.network, s.connection, s.router)
 	if err != nil {
 		return err
 	}
@@ -463,27 +466,27 @@ func (s *Box) start() error {
 	if err != nil {
 		return err
 	}
-	err = adapter.StartNamed(adapter.StartStateStart, s.internalService)
+	err = adapter.StartNamed(s.logger, adapter.StartStateStart, s.internalService)
 	if err != nil {
 		return err
 	}
-	err = adapter.Start(adapter.StartStateStart, s.inbound, s.endpoint, s.service)
+	err = adapter.Start(s.logger, adapter.StartStateStart, s.inbound, s.endpoint, s.service)
 	if err != nil {
 		return err
 	}
-	err = adapter.Start(adapter.StartStatePostStart, s.outbound, s.network, s.dnsTransport, s.dnsRouter, s.connection, s.router, s.inbound, s.endpoint, s.service)
+	err = adapter.Start(s.logger, adapter.StartStatePostStart, s.outbound, s.network, s.dnsTransport, s.dnsRouter, s.connection, s.router, s.inbound, s.endpoint, s.service)
 	if err != nil {
 		return err
 	}
-	err = adapter.StartNamed(adapter.StartStatePostStart, s.internalService)
+	err = adapter.StartNamed(s.logger, adapter.StartStatePostStart, s.internalService)
 	if err != nil {
 		return err
 	}
-	err = adapter.Start(adapter.StartStateStarted, s.network, s.dnsTransport, s.dnsRouter, s.connection, s.router, s.outbound, s.inbound, s.endpoint, s.service)
+	err = adapter.Start(s.logger, adapter.StartStateStarted, s.network, s.dnsTransport, s.dnsRouter, s.connection, s.router, s.outbound, s.inbound, s.endpoint, s.service)
 	if err != nil {
 		return err
 	}
-	err = adapter.StartNamed(adapter.StartStateStarted, s.internalService)
+	err = adapter.StartNamed(s.logger, adapter.StartStateStarted, s.internalService)
 	if err != nil {
 		return err
 	}
@@ -497,17 +500,42 @@ func (s *Box) Close() error {
 	default:
 		close(s.done)
 	}
-	err := common.Close(
-		s.service, s.endpoint, s.inbound, s.outbound, s.router, s.connection, s.dnsRouter, s.dnsTransport, s.network,
-	)
+	var err error
+	for _, closeItem := range []struct {
+		name    string
+		service adapter.Lifecycle
+	}{
+		{"service", s.service},
+		{"endpoint", s.endpoint},
+		{"inbound", s.inbound},
+		{"outbound", s.outbound},
+		{"router", s.router},
+		{"connection", s.connection},
+		{"dns-router", s.dnsRouter},
+		{"dns-transport", s.dnsTransport},
+		{"network", s.network},
+	} {
+		s.logger.Trace("close ", closeItem.name)
+		startTime := time.Now()
+		err = E.Append(err, closeItem.service.Close(), func(err error) error {
+			return E.Cause(err, "close ", closeItem.name)
+		})
+		s.logger.Trace("close ", closeItem.name, " completed (", F.Seconds(time.Since(startTime).Seconds()), "s)")
+	}
 	for _, lifecycleService := range s.internalService {
+		s.logger.Trace("close ", lifecycleService.Name())
+		startTime := time.Now()
 		err = E.Append(err, lifecycleService.Close(), func(err error) error {
 			return E.Cause(err, "close ", lifecycleService.Name())
 		})
+		s.logger.Trace("close ", lifecycleService.Name(), " completed (", F.Seconds(time.Since(startTime).Seconds()), "s)")
 	}
+	s.logger.Trace("close logger")
+	startTime := time.Now()
 	err = E.Append(err, s.logFactory.Close(), func(err error) error {
 		return E.Cause(err, "close logger")
 	})
+	s.logger.Trace("close logger completed (", F.Seconds(time.Since(startTime).Seconds()), "s)")
 	return err
 }
 
@@ -526,3 +554,11 @@ func (s *Box) Inbound() adapter.InboundManager {
 func (s *Box) Outbound() adapter.OutboundManager {
 	return s.outbound
 }
+
+func (s *Box) Endpoint() adapter.EndpointManager {
+	return s.endpoint
+}
+
+func (s *Box) LogFactory() log.Factory {
+	return s.logFactory
+}

cmd/internal/app_store_connect/main.go

@@ -100,11 +100,32 @@ findVersion:
 }
 
 func publishTestflight(ctx context.Context) error {
+	if len(os.Args) < 3 {
+		return E.New("platform required: ios, macos, or tvos")
+	}
+	var platform asc.Platform
+	switch os.Args[2] {
+	case "ios":
+		platform = asc.PlatformIOS
+	case "macos":
+		platform = asc.PlatformMACOS
+	case "tvos":
+		platform = asc.PlatformTVOS
+	default:
+		return E.New("unknown platform: ", os.Args[2])
+	}
+
 	tagVersion, err := build_shared.ReadTagVersion()
 	if err != nil {
 		return err
 	}
 	tag := tagVersion.VersionString()
+
+	releaseNotes := F.ToString("sing-box ", tagVersion.String())
+	if len(os.Args) >= 4 {
+		releaseNotes = strings.Join(os.Args[3:], " ")
+	}
+
 	client := createClient(20 * time.Minute)
 
 	log.Info(tag, " list build IDs")
@@ -115,95 +136,76 @@ func publishTestflight(ctx context.Context) error {
 	buildIDs := common.Map(buildIDsResponse.Data, func(it asc.RelationshipData) string {
 		return it.ID
 	})
-	var platforms []asc.Platform
-	if len(os.Args) == 3 {
-		switch os.Args[2] {
-		case "ios":
-			platforms = []asc.Platform{asc.PlatformIOS}
-		case "macos":
-			platforms = []asc.Platform{asc.PlatformMACOS}
-		case "tvos":
-			platforms = []asc.Platform{asc.PlatformTVOS}
-		default:
-			return E.New("unknown platform: ", os.Args[2])
+
+	waitingForProcess := false
+	log.Info(string(platform), " list builds")
+	for {
+		builds, _, err := client.Builds.ListBuilds(ctx, &asc.ListBuildsQuery{
+			FilterApp:                       []string{appID},
+			FilterPreReleaseVersionPlatform: []string{string(platform)},
+		})
+		if err != nil {
+			return err
 		}
-	} else {
-		platforms = []asc.Platform{
-			asc.PlatformIOS,
-			asc.PlatformMACOS,
-			asc.PlatformTVOS,
+		build := builds.Data[0]
+		log.Info(string(platform), " ", tag, " found build: ", build.ID, " (", *build.Attributes.Version, ")")
+		if !waitingForProcess && (common.Contains(buildIDs, build.ID) || time.Since(build.Attributes.UploadedDate.Time) > 30*time.Minute) {
+			log.Info(string(platform), " ", tag, " waiting for process")
+			time.Sleep(15 * time.Second)
+			continue
 		}
-	}
-	for _, platform := range platforms {
-		log.Info(string(platform), " list builds")
-		for {
-			builds, _, err := client.Builds.ListBuilds(ctx, &asc.ListBuildsQuery{
-				FilterApp:                       []string{appID},
-				FilterPreReleaseVersionPlatform: []string{string(platform)},
-			})
+		if *build.Attributes.ProcessingState != "VALID" {
+			waitingForProcess = true
+			log.Info(string(platform), " ", tag, " waiting for process: ", *build.Attributes.ProcessingState)
+			time.Sleep(15 * time.Second)
+			continue
+		}
+		log.Info(string(platform), " ", tag, " list localizations")
+		localizations, _, err := client.TestFlight.ListBetaBuildLocalizationsForBuild(ctx, build.ID, nil)
+		if err != nil {
+			return err
+		}
+		localization := common.Find(localizations.Data, func(it asc.BetaBuildLocalization) bool {
+			return *it.Attributes.Locale == "en-US"
+		})
+		if localization.ID == "" {
+			log.Fatal(string(platform), " ", tag, " no en-US localization found")
+		}
+		if localization.Attributes == nil || localization.Attributes.WhatsNew == nil || *localization.Attributes.WhatsNew == "" {
+			log.Info(string(platform), " ", tag, " update localization")
+			_, _, err = client.TestFlight.UpdateBetaBuildLocalization(ctx, localization.ID, common.Ptr(releaseNotes))
 			if err != nil {
 				return err
 			}
-			build := builds.Data[0]
-			if common.Contains(buildIDs, build.ID) || time.Since(build.Attributes.UploadedDate.Time) > 30*time.Minute {
-				log.Info(string(platform), " ", tag, " waiting for process")
-				time.Sleep(15 * time.Second)
-				continue
-			}
-			if *build.Attributes.ProcessingState != "VALID" {
-				log.Info(string(platform), " ", tag, " waiting for process: ", *build.Attributes.ProcessingState)
-				time.Sleep(15 * time.Second)
-				continue
-			}
-			log.Info(string(platform), " ", tag, " list localizations")
-			localizations, _, err := client.TestFlight.ListBetaBuildLocalizationsForBuild(ctx, build.ID, nil)
+		}
+		log.Info(string(platform), " ", tag, " publish")
+		response, err := client.TestFlight.AddBuildsToBetaGroup(ctx, groupID, []string{build.ID})
+		if response != nil && (response.StatusCode == http.StatusUnprocessableEntity || response.StatusCode == http.StatusNotFound) {
+			log.Info("waiting for process")
+			time.Sleep(15 * time.Second)
+			continue
+		} else if err != nil {
+			return err
+		}
+		log.Info(string(platform), " ", tag, " list submissions")
+		betaSubmissions, _, err := client.TestFlight.ListBetaAppReviewSubmissions(ctx, &asc.ListBetaAppReviewSubmissionsQuery{
+			FilterBuild: []string{build.ID},
+		})
+		if err != nil {
+			return err
+		}
+		if len(betaSubmissions.Data) == 0 {
+			log.Info(string(platform), " ", tag, " create submission")
+			_, _, err = client.TestFlight.CreateBetaAppReviewSubmission(ctx, build.ID)
 			if err != nil {
-				return err
-			}
-			localization := common.Find(localizations.Data, func(it asc.BetaBuildLocalization) bool {
-				return *it.Attributes.Locale == "en-US"
-			})
-			if localization.ID == "" {
-				log.Fatal(string(platform), " ", tag, " no en-US localization found")
-			}
-			if localization.Attributes == nil || localization.Attributes.WhatsNew == nil || *localization.Attributes.WhatsNew == "" {
-				log.Info(string(platform), " ", tag, " update localization")
-				_, _, err = client.TestFlight.UpdateBetaBuildLocalization(ctx, localization.ID, common.Ptr(
-					F.ToString("sing-box ", tagVersion.String()),
-				))
-				if err != nil {
-					return err
+				if strings.Contains(err.Error(), "ANOTHER_BUILD_IN_REVIEW") {
+					log.Error(err)
+					break
 				}
-			}
-			log.Info(string(platform), " ", tag, " publish")
-			response, err := client.TestFlight.AddBuildsToBetaGroup(ctx, groupID, []string{build.ID})
-			if response != nil && (response.StatusCode == http.StatusUnprocessableEntity || response.StatusCode == http.StatusNotFound) {
-				log.Info("waiting for process")
-				time.Sleep(15 * time.Second)
-				continue
-			} else if err != nil {
 				return err
 			}
-			log.Info(string(platform), " ", tag, " list submissions")
-			betaSubmissions, _, err := client.TestFlight.ListBetaAppReviewSubmissions(ctx, &asc.ListBetaAppReviewSubmissionsQuery{
-				FilterBuild: []string{build.ID},
-			})
-			if err != nil {
-				return err
-			}
-			if len(betaSubmissions.Data) == 0 {
-				log.Info(string(platform), " ", tag, " create submission")
-				_, _, err = client.TestFlight.CreateBetaAppReviewSubmission(ctx, build.ID)
-				if err != nil {
-					if strings.Contains(err.Error(), "ANOTHER_BUILD_IN_REVIEW") {
-						log.Error(err)
-						break
-					}
-					return err
-				}
-			}
-			break
 		}
+		break
 	}
 	return nil
 }

cmd/internal/build_libbox/main.go

@@ -5,6 +5,7 @@ import (
 	"os"
 	"os/exec"
 	"path/filepath"
+	"strconv"
 	"strings"
 
 	_ "github.com/sagernet/gomobile"
@@ -16,17 +17,17 @@ import (
 )
 
 var (
-	debugEnabled  bool
-	target        string
-	platform      string
-	withTailscale bool
+	debugEnabled bool
+	target       string
+	platform     string
+	// withTailscale bool
 )
 
 func init() {
 	flag.BoolVar(&debugEnabled, "debug", false, "enable debug")
 	flag.StringVar(&target, "target", "android", "target platform")
 	flag.StringVar(&platform, "platform", "", "specify platform")
-	flag.BoolVar(&withTailscale, "with-tailscale", false, "build tailscale for iOS and tvOS")
+	// flag.BoolVar(&withTailscale, "with-tailscale", false, "build tailscale for iOS and tvOS")
 }
 
 func main() {
@@ -47,7 +48,7 @@ var (
 	debugFlags  []string
 	sharedTags  []string
 	darwinTags  []string
-	memcTags    []string
+	// memcTags    []string
 	notMemcTags []string
 	debugTags   []string
 )
@@ -59,19 +60,38 @@ func init() {
 	if err != nil {
 		currentTag = "unknown"
 	}
-	sharedFlags = append(sharedFlags, "-ldflags", "-X github.com/sagernet/sing-box/constant.Version="+currentTag+" -s -w -buildid=")
-	debugFlags = append(debugFlags, "-ldflags", "-X github.com/sagernet/sing-box/constant.Version="+currentTag)
+	sharedFlags = append(sharedFlags, "-ldflags", "-X github.com/sagernet/sing-box/constant.Version="+currentTag+" -X internal/godebug.defaultGODEBUG=multipathtcp=0 -s -w -buildid=  -checklinkname=0")
+	debugFlags = append(debugFlags, "-ldflags", "-X github.com/sagernet/sing-box/constant.Version="+currentTag+" -X internal/godebug.defaultGODEBUG=multipathtcp=0 -checklinkname=0")
 
-	sharedTags = append(sharedTags, "with_gvisor", "with_quic", "with_wireguard", "with_utls", "with_clash_api", "with_conntrack")
-	darwinTags = append(darwinTags, "with_dhcp")
-	memcTags = append(memcTags, "with_tailscale")
+	sharedTags = append(sharedTags, "with_gvisor", "with_quic", "with_wireguard", "with_utls", "with_naive_outbound", "with_clash_api", "badlinkname", "tfogo_checklinkname0")
+	darwinTags = append(darwinTags, "with_dhcp", "grpcnotrace")
+	// memcTags = append(memcTags, "with_tailscale")
+	sharedTags = append(sharedTags, "with_tailscale", "ts_omit_logtail", "ts_omit_ssh", "ts_omit_drive", "ts_omit_taildrop", "ts_omit_webclient", "ts_omit_doctor", "ts_omit_capture", "ts_omit_kube", "ts_omit_aws", "ts_omit_synology", "ts_omit_bird")
 	notMemcTags = append(notMemcTags, "with_low_memory")
 	debugTags = append(debugTags, "debug")
 }
 
-func buildAndroid() {
-	build_shared.FindSDK()
+type AndroidBuildConfig struct {
+	AndroidAPI int
+	OutputName string
+	Tags       []string
+}
 
+func filterTags(tags []string, exclude ...string) []string {
+	excludeMap := make(map[string]bool)
+	for _, tag := range exclude {
+		excludeMap[tag] = true
+	}
+	var result []string
+	for _, tag := range tags {
+		if !excludeMap[tag] {
+			result = append(result, tag)
+		}
+	}
+	return result
+}
+
+func checkJavaVersion() {
 	var javaPath string
 	javaHome := os.Getenv("JAVA_HOME")
 	if javaHome == "" {
@@ -87,21 +107,24 @@ func buildAndroid() {
 	if !strings.Contains(javaVersion, "openjdk 17") {
 		log.Fatal("java version should be openjdk 17")
 	}
+}
 
-	var bindTarget string
+func getAndroidBindTarget() string {
 	if platform != "" {
-		bindTarget = platform
+		return platform
 	} else if debugEnabled {
-		bindTarget = "android/arm64"
-	} else {
-		bindTarget = "android"
+		return "android/arm64"
 	}
+	return "android"
+}
 
+func buildAndroidVariant(config AndroidBuildConfig, bindTarget string) {
 	args := []string{
 		"bind",
 		"-v",
+		"-o", config.OutputName,
 		"-target", bindTarget,
-		"-androidapi", "21",
+		"-androidapi", strconv.Itoa(config.AndroidAPI),
 		"-javapkg=io.nekohasekai",
 		"-libname=box",
 	}
@@ -112,34 +135,59 @@ func buildAndroid() {
 		args = append(args, debugFlags...)
 	}
 
-	tags := append(sharedTags, memcTags...)
-	if debugEnabled {
-		tags = append(tags, debugTags...)
-	}
-
-	args = append(args, "-tags", strings.Join(tags, ","))
+	args = append(args, "-tags", strings.Join(config.Tags, ","))
 	args = append(args, "./experimental/libbox")
 
 	command := exec.Command(build_shared.GoBinPath+"/gomobile", args...)
 	command.Stdout = os.Stdout
 	command.Stderr = os.Stderr
-	err = command.Run()
+	err := command.Run()
 	if err != nil {
 		log.Fatal(err)
 	}
 
-	const name = "libbox.aar"
 	copyPath := filepath.Join("..", "sing-box-for-android", "app", "libs")
 	if rw.IsDir(copyPath) {
 		copyPath, _ = filepath.Abs(copyPath)
-		err = rw.CopyFile(name, filepath.Join(copyPath, name))
+		err = rw.CopyFile(config.OutputName, filepath.Join(copyPath, config.OutputName))
 		if err != nil {
 			log.Fatal(err)
 		}
-		log.Info("copied to ", copyPath)
+		log.Info("copied ", config.OutputName, " to ", copyPath)
 	}
 }
 
+func buildAndroid() {
+	build_shared.FindSDK()
+	checkJavaVersion()
+
+	bindTarget := getAndroidBindTarget()
+
+	// Build main variant (SDK 23)
+	mainTags := append([]string{}, sharedTags...)
+	// mainTags = append(mainTags, memcTags...)
+	if debugEnabled {
+		mainTags = append(mainTags, debugTags...)
+	}
+	buildAndroidVariant(AndroidBuildConfig{
+		AndroidAPI: 23,
+		OutputName: "libbox.aar",
+		Tags:       mainTags,
+	}, bindTarget)
+
+	// Build legacy variant (SDK 21, no naive outbound)
+	legacyTags := filterTags(sharedTags, "with_naive_outbound")
+	// legacyTags = append(legacyTags, memcTags...)
+	if debugEnabled {
+		legacyTags = append(legacyTags, debugTags...)
+	}
+	buildAndroidVariant(AndroidBuildConfig{
+		AndroidAPI: 21,
+		OutputName: "libbox-legacy.aar",
+		Tags:       legacyTags,
+	}, bindTarget)
+}
+
 func buildApple() {
 	var bindTarget string
 	if platform != "" {
@@ -147,7 +195,7 @@ func buildApple() {
 	} else if debugEnabled {
 		bindTarget = "ios"
 	} else {
-		bindTarget = "ios,tvos,macos"
+		bindTarget = "ios,iossimulator,tvos,tvossimulator,macos"
 	}
 
 	args := []string{
@@ -157,9 +205,9 @@ func buildApple() {
 		"-libname=box",
 		"-tags-not-macos=with_low_memory",
 	}
-	if !withTailscale {
-		args = append(args, "-tags-macos="+strings.Join(memcTags, ","))
-	}
+	//if !withTailscale {
+	//	args = append(args, "-tags-macos="+strings.Join(memcTags, ","))
+	//}
 
 	if !debugEnabled {
 		args = append(args, sharedFlags...)
@@ -168,9 +216,9 @@ func buildApple() {
 	}
 
 	tags := append(sharedTags, darwinTags...)
-	if withTailscale {
-		tags = append(tags, memcTags...)
-	}
+	//if withTailscale {
+	//	tags = append(tags, memcTags...)
+	//}
 	if debugEnabled {
 		tags = append(tags, debugTags...)
 	}

cmd/internal/format_docs/main.go

@@ -0,0 +1,117 @@
+package main
+
+import (
+	"bytes"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/sagernet/sing-box/log"
+)
+
+func main() {
+	err := filepath.Walk("docs", func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+		if info.IsDir() {
+			return nil
+		}
+		if !strings.HasSuffix(path, ".md") {
+			return nil
+		}
+		return processFile(path)
+	})
+	if err != nil {
+		log.Fatal(err)
+	}
+}
+
+func processFile(path string) error {
+	content, err := os.ReadFile(path)
+	if err != nil {
+		return err
+	}
+
+	lines := strings.Split(string(content), "\n")
+	modified := false
+	result := make([]string, 0, len(lines))
+
+	inQuoteBlock := false
+	materialLines := []int{} // indices of :material- lines in the block
+
+	for _, line := range lines {
+		// Check for quote block start
+		if strings.HasPrefix(line, "!!! quote \"") && strings.Contains(line, "sing-box") {
+			inQuoteBlock = true
+			materialLines = nil
+			result = append(result, line)
+			continue
+		}
+
+		// Inside a quote block
+		if inQuoteBlock {
+			trimmed := strings.TrimPrefix(line, "    ")
+			isMaterialLine := strings.HasPrefix(trimmed, ":material-")
+			isEmpty := strings.TrimSpace(line) == ""
+			isIndented := strings.HasPrefix(line, "    ")
+
+			if isMaterialLine {
+				materialLines = append(materialLines, len(result))
+				result = append(result, line)
+				continue
+			}
+
+			// Block ends when:
+			// - Empty line AFTER we've seen material lines, OR
+			// - Non-indented, non-empty line
+			blockEnds := (isEmpty && len(materialLines) > 0) || (!isEmpty && !isIndented)
+			if blockEnds {
+				// Process collected material lines
+				if len(materialLines) > 0 {
+					for j, idx := range materialLines {
+						isLast := j == len(materialLines)-1
+						resultLine := strings.TrimRight(result[idx], " ")
+						if !isLast {
+							// Add trailing two spaces for non-last lines
+							resultLine += "  "
+						}
+						if result[idx] != resultLine {
+							modified = true
+							result[idx] = resultLine
+						}
+					}
+				}
+				inQuoteBlock = false
+				materialLines = nil
+			}
+		}
+
+		result = append(result, line)
+	}
+
+	// Handle case where file ends while still in a block
+	if inQuoteBlock && len(materialLines) > 0 {
+		for j, idx := range materialLines {
+			isLast := j == len(materialLines)-1
+			resultLine := strings.TrimRight(result[idx], " ")
+			if !isLast {
+				resultLine += "  "
+			}
+			if result[idx] != resultLine {
+				modified = true
+				result[idx] = resultLine
+			}
+		}
+	}
+
+	if modified {
+		newContent := strings.Join(result, "\n")
+		if !bytes.Equal(content, []byte(newContent)) {
+			log.Info("formatted: ", path)
+			return os.WriteFile(path, []byte(newContent), 0o644)
+		}
+	}
+
+	return nil
+}

cmd/internal/tun_bench/main.go

@@ -46,7 +46,7 @@ func main0() error {
 
 func runTests() ([]TestResult, error) {
 	boxPaths := []string{
-		//"/Users/sekai/Downloads/sing-box-1.11.15-darwin-arm64/sing-box",
+		os.ExpandEnv("$HOME/Downloads/sing-box-1.11.15-darwin-arm64/sing-box"),
 		//"/Users/sekai/Downloads/sing-box-1.11.15-linux-arm64/sing-box",
 		"./sing-box",
 	}
@@ -55,11 +55,11 @@ func runTests() ([]TestResult, error) {
 		"system",
 	}
 	mtus := []int{
-		// 1500,
-		// 4064,
+		1500,
+		4064,
 		// 16384,
-		32768,
-		49152,
+		// 32768,
+		// 49152,
 		65535,
 	}
 	flagList := [][]string{
@@ -151,9 +151,7 @@ func testOnce(boxPath string, stackName string, mtu int, multiThread bool, flags
 	var sudoArgs []string
 	if len(flags) > 0 {
 		sudoArgs = append(sudoArgs, "env")
-		for _, flag := range flags {
-			sudoArgs = append(sudoArgs, flag)
-		}
+		sudoArgs = append(sudoArgs, flags...)
 	}
 	sudoArgs = append(sudoArgs, boxPath, "run", "-c", tempConfig.Name())
 	boxProcess := shell.Exec("sudo", sudoArgs...)
@@ -182,7 +180,7 @@ func testOnce(boxPath string, stackName string, mtu int, multiThread bool, flags
 
 	time.Sleep(time.Second)
 
-	args := []string{"-c", testAddress.String(), "-t", "5"}
+	args := []string{"-c", testAddress.String()}
 	if multiThread {
 		args = append(args, "-P", "10")
 	}

cmd/internal/update_apple_version/main.go

@@ -71,12 +71,12 @@ func findAndReplace(objectsMap map[string]any, projectContent string, bundleIDLi
 		indexEnd := indexStart + strings.Index(projectContent[indexStart:], "}")
 		versionStart := indexStart + strings.Index(projectContent[indexStart:indexEnd], "MARKETING_VERSION = ") + 20
 		versionEnd := versionStart + strings.Index(projectContent[versionStart:indexEnd], ";")
-		version := projectContent[versionStart:versionEnd]
+		version := strings.Trim(projectContent[versionStart:versionEnd], "\"")
 		if version == newVersion {
 			continue
 		}
 		updated = true
-		projectContent = projectContent[:versionStart] + newVersion + projectContent[versionEnd:]
+		projectContent = projectContent[:versionStart] + "\"" + newVersion + "\"" + projectContent[versionEnd:]
 	}
 	return projectContent, updated
 }

cmd/internal/update_certificates/main.go

@@ -17,6 +17,10 @@ func main() {
 	if err != nil {
 		log.Error(err)
 	}
+	err = updateChromeIncludedRootCAs()
+	if err != nil {
+		log.Error(err)
+	}
 }
 
 func updateMozillaIncludedRootCAs() error {
@@ -69,3 +73,94 @@ func init() {
 	generated.WriteString("}\n")
 	return os.WriteFile("common/certificate/mozilla.go", []byte(generated.String()), 0o644)
 }
+
+func fetchChinaFingerprints() (map[string]bool, error) {
+	response, err := http.Get("https://ccadb.my.salesforce-sites.com/ccadb/AllCertificateRecordsCSVFormatv4")
+	if err != nil {
+		return nil, err
+	}
+	defer response.Body.Close()
+	reader := csv.NewReader(response.Body)
+	header, err := reader.Read()
+	if err != nil {
+		return nil, err
+	}
+	countryIndex := slices.Index(header, "Country")
+	fingerprintIndex := slices.Index(header, "SHA-256 Fingerprint")
+
+	chinaFingerprints := make(map[string]bool)
+	for {
+		record, err := reader.Read()
+		if err == io.EOF {
+			break
+		} else if err != nil {
+			return nil, err
+		}
+		if record[countryIndex] == "China" {
+			chinaFingerprints[record[fingerprintIndex]] = true
+		}
+	}
+	return chinaFingerprints, nil
+}
+
+func updateChromeIncludedRootCAs() error {
+	chinaFingerprints, err := fetchChinaFingerprints()
+	if err != nil {
+		return err
+	}
+
+	response, err := http.Get("https://ccadb.my.salesforce-sites.com/ccadb/RootCACertificatesIncludedByRSReportCSV")
+	if err != nil {
+		return err
+	}
+	defer response.Body.Close()
+	reader := csv.NewReader(response.Body)
+	header, err := reader.Read()
+	if err != nil {
+		return err
+	}
+	subjectIndex := slices.Index(header, "Subject")
+	statusIndex := slices.Index(header, "Google Chrome Status")
+	certIndex := slices.Index(header, "X.509 Certificate (PEM)")
+	fingerprintIndex := slices.Index(header, "SHA-256 Fingerprint")
+
+	generated := strings.Builder{}
+	generated.WriteString(`// Code generated by 'make update_certificates'. DO NOT EDIT.
+
+package certificate
+
+import "crypto/x509"
+
+var chromeIncluded *x509.CertPool
+
+func init() {
+	chromeIncluded = x509.NewCertPool()
+`)
+	for {
+		record, err := reader.Read()
+		if err == io.EOF {
+			break
+		} else if err != nil {
+			return err
+		}
+		if record[statusIndex] != "Included" {
+			continue
+		}
+		if chinaFingerprints[record[fingerprintIndex]] {
+			continue
+		}
+		generated.WriteString("\n	// ")
+		generated.WriteString(record[subjectIndex])
+		generated.WriteString("\n")
+		generated.WriteString("	chromeIncluded.AppendCertsFromPEM([]byte(`")
+		cert := record[certIndex]
+		// Remove single quotes if present
+		if len(cert) > 0 && cert[0] == '\'' {
+			cert = cert[1 : len(cert)-1]
+		}
+		generated.WriteString(cert)
+		generated.WriteString("`))\n")
+	}
+	generated.WriteString("}\n")
+	return os.WriteFile("common/certificate/chrome.go", []byte(generated.String()), 0o644)
+}

cmd/sing-box/cmd_rule_set_compile.go

@@ -6,8 +6,10 @@ import (
 	"strings"
 
 	"github.com/sagernet/sing-box/common/srs"
+	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
+	"github.com/sagernet/sing-box/route/rule"
 	"github.com/sagernet/sing/common/json"
 
 	"github.com/spf13/cobra"
@@ -69,7 +71,7 @@ func compileRuleSet(sourcePath string) error {
 	if err != nil {
 		return err
 	}
-	err = srs.Write(outputFile, plainRuleSet.Options, plainRuleSet.Version)
+	err = srs.Write(outputFile, plainRuleSet.Options, downgradeRuleSetVersion(plainRuleSet.Version, plainRuleSet.Options))
 	if err != nil {
 		outputFile.Close()
 		os.Remove(outputPath)
@@ -78,3 +80,18 @@ func compileRuleSet(sourcePath string) error {
 	outputFile.Close()
 	return nil
 }
+
+func downgradeRuleSetVersion(version uint8, options option.PlainRuleSet) uint8 {
+	if version == C.RuleSetVersion4 && !rule.HasHeadlessRule(options.Rules, func(rule option.DefaultHeadlessRule) bool {
+		return rule.NetworkInterfaceAddress != nil && rule.NetworkInterfaceAddress.Size() > 0 ||
+			len(rule.DefaultInterfaceAddress) > 0
+	}) {
+		version = C.RuleSetVersion3
+	}
+	if version == C.RuleSetVersion3 && !rule.HasHeadlessRule(options.Rules, func(rule option.DefaultHeadlessRule) bool {
+		return len(rule.NetworkType) > 0 || rule.NetworkIsExpensive || rule.NetworkIsConstrained
+	}) {
+		version = C.RuleSetVersion2
+	}
+	return version
+}

cmd/sing-box/cmd_tools_fetch_http3.go

@@ -22,7 +22,7 @@ func initializeHTTP3Client(instance *box.Box) error {
 	}
 	http3Client = &http.Client{
 		Transport: &http3.Transport{
-			Dial: func(ctx context.Context, addr string, tlsCfg *tls.Config, cfg *quic.Config) (quic.EarlyConnection, error) {
+			Dial: func(ctx context.Context, addr string, tlsCfg *tls.Config, cfg *quic.Config) (*quic.Conn, error) {
 				destination := M.ParseSocksaddr(addr)
 				udpConn, dErr := dialer.DialContext(ctx, N.NetworkUDP, destination)
 				if dErr != nil {

common/badtls/raw_conn.go

@@ -0,0 +1,176 @@
+//go:build go1.25 && badlinkname
+
+package badtls
+
+import (
+	"bytes"
+	"os"
+	"reflect"
+	"sync/atomic"
+	"unsafe"
+
+	E "github.com/sagernet/sing/common/exceptions"
+	"github.com/sagernet/sing/common/tls"
+)
+
+type RawConn struct {
+	pointer unsafe.Pointer
+	methods *Methods
+
+	IsClient            *bool
+	IsHandshakeComplete *atomic.Bool
+	Vers                *uint16
+	CipherSuite         *uint16
+
+	RawInput *bytes.Buffer
+	Input    *bytes.Reader
+	Hand     *bytes.Buffer
+
+	CloseNotifySent *bool
+	CloseNotifyErr  *error
+
+	In  *RawHalfConn
+	Out *RawHalfConn
+
+	BytesSent   *int64
+	PacketsSent *int64
+
+	ActiveCall *atomic.Int32
+	Tmp        *[16]byte
+}
+
+func NewRawConn(rawTLSConn tls.Conn) (*RawConn, error) {
+	var (
+		pointer unsafe.Pointer
+		methods *Methods
+		loaded  bool
+	)
+	for _, tlsCreator := range methodRegistry {
+		pointer, methods, loaded = tlsCreator(rawTLSConn)
+		if loaded {
+			break
+		}
+	}
+	if !loaded {
+		return nil, os.ErrInvalid
+	}
+
+	conn := &RawConn{
+		pointer: pointer,
+		methods: methods,
+	}
+
+	rawConn := reflect.Indirect(reflect.ValueOf(rawTLSConn))
+
+	rawIsClient := rawConn.FieldByName("isClient")
+	if !rawIsClient.IsValid() || rawIsClient.Kind() != reflect.Bool {
+		return nil, E.New("invalid Conn.isClient")
+	}
+	conn.IsClient = (*bool)(unsafe.Pointer(rawIsClient.UnsafeAddr()))
+
+	rawIsHandshakeComplete := rawConn.FieldByName("isHandshakeComplete")
+	if !rawIsHandshakeComplete.IsValid() || rawIsHandshakeComplete.Kind() != reflect.Struct {
+		return nil, E.New("invalid Conn.isHandshakeComplete")
+	}
+	conn.IsHandshakeComplete = (*atomic.Bool)(unsafe.Pointer(rawIsHandshakeComplete.UnsafeAddr()))
+
+	rawVers := rawConn.FieldByName("vers")
+	if !rawVers.IsValid() || rawVers.Kind() != reflect.Uint16 {
+		return nil, E.New("invalid Conn.vers")
+	}
+	conn.Vers = (*uint16)(unsafe.Pointer(rawVers.UnsafeAddr()))
+
+	rawCipherSuite := rawConn.FieldByName("cipherSuite")
+	if !rawCipherSuite.IsValid() || rawCipherSuite.Kind() != reflect.Uint16 {
+		return nil, E.New("invalid Conn.cipherSuite")
+	}
+	conn.CipherSuite = (*uint16)(unsafe.Pointer(rawCipherSuite.UnsafeAddr()))
+
+	rawRawInput := rawConn.FieldByName("rawInput")
+	if !rawRawInput.IsValid() || rawRawInput.Kind() != reflect.Struct {
+		return nil, E.New("invalid Conn.rawInput")
+	}
+	conn.RawInput = (*bytes.Buffer)(unsafe.Pointer(rawRawInput.UnsafeAddr()))
+
+	rawInput := rawConn.FieldByName("input")
+	if !rawInput.IsValid() || rawInput.Kind() != reflect.Struct {
+		return nil, E.New("invalid Conn.input")
+	}
+	conn.Input = (*bytes.Reader)(unsafe.Pointer(rawInput.UnsafeAddr()))
+
+	rawHand := rawConn.FieldByName("hand")
+	if !rawHand.IsValid() || rawHand.Kind() != reflect.Struct {
+		return nil, E.New("invalid Conn.hand")
+	}
+	conn.Hand = (*bytes.Buffer)(unsafe.Pointer(rawHand.UnsafeAddr()))
+
+	rawCloseNotifySent := rawConn.FieldByName("closeNotifySent")
+	if !rawCloseNotifySent.IsValid() || rawCloseNotifySent.Kind() != reflect.Bool {
+		return nil, E.New("invalid Conn.closeNotifySent")
+	}
+	conn.CloseNotifySent = (*bool)(unsafe.Pointer(rawCloseNotifySent.UnsafeAddr()))
+
+	rawCloseNotifyErr := rawConn.FieldByName("closeNotifyErr")
+	if !rawCloseNotifyErr.IsValid() || rawCloseNotifyErr.Kind() != reflect.Interface {
+		return nil, E.New("invalid Conn.closeNotifyErr")
+	}
+	conn.CloseNotifyErr = (*error)(unsafe.Pointer(rawCloseNotifyErr.UnsafeAddr()))
+
+	rawIn := rawConn.FieldByName("in")
+	if !rawIn.IsValid() || rawIn.Kind() != reflect.Struct {
+		return nil, E.New("invalid Conn.in")
+	}
+	halfIn, err := NewRawHalfConn(rawIn, methods)
+	if err != nil {
+		return nil, E.Cause(err, "invalid Conn.in")
+	}
+	conn.In = halfIn
+
+	rawOut := rawConn.FieldByName("out")
+	if !rawOut.IsValid() || rawOut.Kind() != reflect.Struct {
+		return nil, E.New("invalid Conn.out")
+	}
+	halfOut, err := NewRawHalfConn(rawOut, methods)
+	if err != nil {
+		return nil, E.Cause(err, "invalid Conn.out")
+	}
+	conn.Out = halfOut
+
+	rawBytesSent := rawConn.FieldByName("bytesSent")
+	if !rawBytesSent.IsValid() || rawBytesSent.Kind() != reflect.Int64 {
+		return nil, E.New("invalid Conn.bytesSent")
+	}
+	conn.BytesSent = (*int64)(unsafe.Pointer(rawBytesSent.UnsafeAddr()))
+
+	rawPacketsSent := rawConn.FieldByName("packetsSent")
+	if !rawPacketsSent.IsValid() || rawPacketsSent.Kind() != reflect.Int64 {
+		return nil, E.New("invalid Conn.packetsSent")
+	}
+	conn.PacketsSent = (*int64)(unsafe.Pointer(rawPacketsSent.UnsafeAddr()))
+
+	rawActiveCall := rawConn.FieldByName("activeCall")
+	if !rawActiveCall.IsValid() || rawActiveCall.Kind() != reflect.Struct {
+		return nil, E.New("invalid Conn.activeCall")
+	}
+	conn.ActiveCall = (*atomic.Int32)(unsafe.Pointer(rawActiveCall.UnsafeAddr()))
+
+	rawTmp := rawConn.FieldByName("tmp")
+	if !rawTmp.IsValid() || rawTmp.Kind() != reflect.Array || rawTmp.Len() != 16 || rawTmp.Type().Elem().Kind() != reflect.Uint8 {
+		return nil, E.New("invalid Conn.tmp")
+	}
+	conn.Tmp = (*[16]byte)(unsafe.Pointer(rawTmp.UnsafeAddr()))
+
+	return conn, nil
+}
+
+func (c *RawConn) ReadRecord() error {
+	return c.methods.readRecord(c.pointer)
+}
+
+func (c *RawConn) HandlePostHandshakeMessage() error {
+	return c.methods.handlePostHandshakeMessage(c.pointer)
+}
+
+func (c *RawConn) WriteRecordLocked(typ uint16, data []byte) (int, error) {
+	return c.methods.writeRecordLocked(c.pointer, typ, data)
+}

common/badtls/raw_half_conn.go

@@ -0,0 +1,121 @@
+//go:build go1.25 && badlinkname
+
+package badtls
+
+import (
+	"hash"
+	"reflect"
+	"sync"
+	"unsafe"
+
+	E "github.com/sagernet/sing/common/exceptions"
+)
+
+type RawHalfConn struct {
+	pointer unsafe.Pointer
+	methods *Methods
+	*sync.Mutex
+	Err           *error
+	Version       *uint16
+	Cipher        *any
+	Seq           *[8]byte
+	ScratchBuf    *[13]byte
+	TrafficSecret *[]byte
+	Mac           *hash.Hash
+	RawKey        *[]byte
+	RawIV         *[]byte
+	RawMac        *[]byte
+}
+
+func NewRawHalfConn(rawHalfConn reflect.Value, methods *Methods) (*RawHalfConn, error) {
+	halfConn := &RawHalfConn{
+		pointer: (unsafe.Pointer)(rawHalfConn.UnsafeAddr()),
+		methods: methods,
+	}
+
+	rawMutex := rawHalfConn.FieldByName("Mutex")
+	if !rawMutex.IsValid() || rawMutex.Kind() != reflect.Struct {
+		return nil, E.New("badtls: invalid halfConn.Mutex")
+	}
+	halfConn.Mutex = (*sync.Mutex)(unsafe.Pointer(rawMutex.UnsafeAddr()))
+
+	rawErr := rawHalfConn.FieldByName("err")
+	if !rawErr.IsValid() || rawErr.Kind() != reflect.Interface {
+		return nil, E.New("badtls: invalid halfConn.err")
+	}
+	halfConn.Err = (*error)(unsafe.Pointer(rawErr.UnsafeAddr()))
+
+	rawVersion := rawHalfConn.FieldByName("version")
+	if !rawVersion.IsValid() || rawVersion.Kind() != reflect.Uint16 {
+		return nil, E.New("badtls: invalid halfConn.version")
+	}
+	halfConn.Version = (*uint16)(unsafe.Pointer(rawVersion.UnsafeAddr()))
+
+	rawCipher := rawHalfConn.FieldByName("cipher")
+	if !rawCipher.IsValid() || rawCipher.Kind() != reflect.Interface {
+		return nil, E.New("badtls: invalid halfConn.cipher")
+	}
+	halfConn.Cipher = (*any)(unsafe.Pointer(rawCipher.UnsafeAddr()))
+
+	rawSeq := rawHalfConn.FieldByName("seq")
+	if !rawSeq.IsValid() || rawSeq.Kind() != reflect.Array || rawSeq.Len() != 8 || rawSeq.Type().Elem().Kind() != reflect.Uint8 {
+		return nil, E.New("badtls: invalid halfConn.seq")
+	}
+	halfConn.Seq = (*[8]byte)(unsafe.Pointer(rawSeq.UnsafeAddr()))
+
+	rawScratchBuf := rawHalfConn.FieldByName("scratchBuf")
+	if !rawScratchBuf.IsValid() || rawScratchBuf.Kind() != reflect.Array || rawScratchBuf.Len() != 13 || rawScratchBuf.Type().Elem().Kind() != reflect.Uint8 {
+		return nil, E.New("badtls: invalid halfConn.scratchBuf")
+	}
+	halfConn.ScratchBuf = (*[13]byte)(unsafe.Pointer(rawScratchBuf.UnsafeAddr()))
+
+	rawTrafficSecret := rawHalfConn.FieldByName("trafficSecret")
+	if !rawTrafficSecret.IsValid() || rawTrafficSecret.Kind() != reflect.Slice || rawTrafficSecret.Type().Elem().Kind() != reflect.Uint8 {
+		return nil, E.New("badtls: invalid halfConn.trafficSecret")
+	}
+	halfConn.TrafficSecret = (*[]byte)(unsafe.Pointer(rawTrafficSecret.UnsafeAddr()))
+
+	rawMac := rawHalfConn.FieldByName("mac")
+	if !rawMac.IsValid() || rawMac.Kind() != reflect.Interface {
+		return nil, E.New("badtls: invalid halfConn.mac")
+	}
+	halfConn.Mac = (*hash.Hash)(unsafe.Pointer(rawMac.UnsafeAddr()))
+
+	rawKey := rawHalfConn.FieldByName("rawKey")
+	if rawKey.IsValid() {
+		if /*!rawKey.IsValid() || */ rawKey.Kind() != reflect.Slice || rawKey.Type().Elem().Kind() != reflect.Uint8 {
+			return nil, E.New("badtls: invalid halfConn.rawKey")
+		}
+		halfConn.RawKey = (*[]byte)(unsafe.Pointer(rawKey.UnsafeAddr()))
+
+		rawIV := rawHalfConn.FieldByName("rawIV")
+		if !rawIV.IsValid() || rawIV.Kind() != reflect.Slice || rawIV.Type().Elem().Kind() != reflect.Uint8 {
+			return nil, E.New("badtls: invalid halfConn.rawIV")
+		}
+		halfConn.RawIV = (*[]byte)(unsafe.Pointer(rawIV.UnsafeAddr()))
+
+		rawMAC := rawHalfConn.FieldByName("rawMac")
+		if !rawMAC.IsValid() || rawMAC.Kind() != reflect.Slice || rawMAC.Type().Elem().Kind() != reflect.Uint8 {
+			return nil, E.New("badtls: invalid halfConn.rawMac")
+		}
+		halfConn.RawMac = (*[]byte)(unsafe.Pointer(rawMAC.UnsafeAddr()))
+	}
+
+	return halfConn, nil
+}
+
+func (hc *RawHalfConn) Decrypt(record []byte) ([]byte, uint8, error) {
+	return hc.methods.decrypt(hc.pointer, record)
+}
+
+func (hc *RawHalfConn) SetErrorLocked(err error) error {
+	return hc.methods.setErrorLocked(hc.pointer, err)
+}
+
+func (hc *RawHalfConn) SetTrafficSecret(suite unsafe.Pointer, level int, secret []byte) {
+	hc.methods.setTrafficSecret(hc.pointer, suite, level, secret)
+}
+
+func (hc *RawHalfConn) ExplicitNonceLen() int {
+	return hc.methods.explicitNonceLen(hc.pointer)
+}

common/badtls/read_wait.go

@@ -1,18 +1,9 @@
-//go:build go1.21 && !without_badtls
+//go:build go1.25 && badlinkname
 
 package badtls
 
 import (
-	"bytes"
-	"context"
-	"net"
-	"os"
-	"reflect"
-	"sync"
-	"unsafe"
-
 	"github.com/sagernet/sing/common/buf"
-	E "github.com/sagernet/sing/common/exceptions"
 	N "github.com/sagernet/sing/common/network"
 	"github.com/sagernet/sing/common/tls"
 )
@@ -21,63 +12,21 @@ var _ N.ReadWaiter = (*ReadWaitConn)(nil)
 
 type ReadWaitConn struct {
 	tls.Conn
-	halfAccess                    *sync.Mutex
-	rawInput                      *bytes.Buffer
-	input                         *bytes.Reader
-	hand                          *bytes.Buffer
-	readWaitOptions               N.ReadWaitOptions
-	tlsReadRecord                 func() error
-	tlsHandlePostHandshakeMessage func() error
+	rawConn         *RawConn
+	readWaitOptions N.ReadWaitOptions
 }
 
 func NewReadWaitConn(conn tls.Conn) (tls.Conn, error) {
-	var (
-		loaded                        bool
-		tlsReadRecord                 func() error
-		tlsHandlePostHandshakeMessage func() error
-	)
-	for _, tlsCreator := range tlsRegistry {
-		loaded, tlsReadRecord, tlsHandlePostHandshakeMessage = tlsCreator(conn)
-		if loaded {
-			break
-		}
+	if _, isReadWaitConn := conn.(N.ReadWaiter); isReadWaitConn {
+		return conn, nil
 	}
-	if !loaded {
-		return nil, os.ErrInvalid
+	rawConn, err := NewRawConn(conn)
+	if err != nil {
+		return nil, err
 	}
-	rawConn := reflect.Indirect(reflect.ValueOf(conn))
-	rawHalfConn := rawConn.FieldByName("in")
-	if !rawHalfConn.IsValid() || rawHalfConn.Kind() != reflect.Struct {
-		return nil, E.New("badtls: invalid half conn")
-	}
-	rawHalfMutex := rawHalfConn.FieldByName("Mutex")
-	if !rawHalfMutex.IsValid() || rawHalfMutex.Kind() != reflect.Struct {
-		return nil, E.New("badtls: invalid half mutex")
-	}
-	halfAccess := (*sync.Mutex)(unsafe.Pointer(rawHalfMutex.UnsafeAddr()))
-	rawRawInput := rawConn.FieldByName("rawInput")
-	if !rawRawInput.IsValid() || rawRawInput.Kind() != reflect.Struct {
-		return nil, E.New("badtls: invalid raw input")
-	}
-	rawInput := (*bytes.Buffer)(unsafe.Pointer(rawRawInput.UnsafeAddr()))
-	rawInput0 := rawConn.FieldByName("input")
-	if !rawInput0.IsValid() || rawInput0.Kind() != reflect.Struct {
-		return nil, E.New("badtls: invalid input")
-	}
-	input := (*bytes.Reader)(unsafe.Pointer(rawInput0.UnsafeAddr()))
-	rawHand := rawConn.FieldByName("hand")
-	if !rawHand.IsValid() || rawHand.Kind() != reflect.Struct {
-		return nil, E.New("badtls: invalid hand")
-	}
-	hand := (*bytes.Buffer)(unsafe.Pointer(rawHand.UnsafeAddr()))
 	return &ReadWaitConn{
-		Conn:                          conn,
-		halfAccess:                    halfAccess,
-		rawInput:                      rawInput,
-		input:                         input,
-		hand:                          hand,
-		tlsReadRecord:                 tlsReadRecord,
-		tlsHandlePostHandshakeMessage: tlsHandlePostHandshakeMessage,
+		Conn:    conn,
+		rawConn: rawConn,
 	}, nil
 }
 
@@ -87,36 +36,36 @@ func (c *ReadWaitConn) InitializeReadWaiter(options N.ReadWaitOptions) (needCopy
 }
 
 func (c *ReadWaitConn) WaitReadBuffer() (buffer *buf.Buffer, err error) {
-	err = c.HandshakeContext(context.Background())
-	if err != nil {
-		return
-	}
-	c.halfAccess.Lock()
-	defer c.halfAccess.Unlock()
-	for c.input.Len() == 0 {
-		err = c.tlsReadRecord()
+	//err = c.HandshakeContext(context.Background())
+	//if err != nil {
+	//	return
+	//}
+	c.rawConn.In.Lock()
+	defer c.rawConn.In.Unlock()
+	for c.rawConn.Input.Len() == 0 {
+		err = c.rawConn.ReadRecord()
 		if err != nil {
 			return
 		}
-		for c.hand.Len() > 0 {
-			err = c.tlsHandlePostHandshakeMessage()
+		for c.rawConn.Hand.Len() > 0 {
+			err = c.rawConn.HandlePostHandshakeMessage()
 			if err != nil {
 				return
 			}
 		}
 	}
 	buffer = c.readWaitOptions.NewBuffer()
-	n, err := c.input.Read(buffer.FreeBytes())
+	n, err := c.rawConn.Input.Read(buffer.FreeBytes())
 	if err != nil {
 		buffer.Release()
 		return
 	}
 	buffer.Truncate(n)
 
-	if n != 0 && c.input.Len() == 0 && c.rawInput.Len() > 0 &&
-		// recordType(c.rawInput.Bytes()[0]) == recordTypeAlert {
-		c.rawInput.Bytes()[0] == 21 {
-		_ = c.tlsReadRecord()
+	if n != 0 && c.rawConn.Input.Len() == 0 && c.rawConn.Input.Len() > 0 &&
+		// recordType(c.RawInput.Bytes()[0]) == recordTypeAlert {
+		c.rawConn.RawInput.Bytes()[0] == 21 {
+		_ = c.rawConn.ReadRecord()
 		// return n, err // will be io.EOF on closeNotify
 	}
 
@@ -128,24 +77,6 @@ func (c *ReadWaitConn) Upstream() any {
 	return c.Conn
 }
 
-var tlsRegistry []func(conn net.Conn) (loaded bool, tlsReadRecord func() error, tlsHandlePostHandshakeMessage func() error)
-
-func init() {
-	tlsRegistry = append(tlsRegistry, func(conn net.Conn) (loaded bool, tlsReadRecord func() error, tlsHandlePostHandshakeMessage func() error) {
-		tlsConn, loaded := conn.(*tls.STDConn)
-		if !loaded {
-			return
-		}
-		return true, func() error {
-				return stdTLSReadRecord(tlsConn)
-			}, func() error {
-				return stdTLSHandlePostHandshakeMessage(tlsConn)
-			}
-	})
+func (c *ReadWaitConn) ReaderReplaceable() bool {
+	return true
 }
-
-//go:linkname stdTLSReadRecord crypto/tls.(*Conn).readRecord
-func stdTLSReadRecord(c *tls.STDConn) error
-
-//go:linkname stdTLSHandlePostHandshakeMessage crypto/tls.(*Conn).handlePostHandshakeMessage
-func stdTLSHandlePostHandshakeMessage(c *tls.STDConn) error

common/badtls/read_wait_stub.go

@@ -1,4 +1,4 @@
-//go:build !go1.21 || without_badtls
+//go:build !go1.25 || !badlinkname
 
 package badtls
 

common/badtls/read_wait_utls.go

@@ -1,32 +0,0 @@
-//go:build go1.21 && !without_badtls && with_utls
-
-package badtls
-
-import (
-	"net"
-	_ "unsafe"
-
-	"github.com/sagernet/sing/common"
-
-	"github.com/metacubex/utls"
-)
-
-func init() {
-	tlsRegistry = append(tlsRegistry, func(conn net.Conn) (loaded bool, tlsReadRecord func() error, tlsHandlePostHandshakeMessage func() error) {
-		tlsConn, loaded := common.Cast[*tls.UConn](conn)
-		if !loaded {
-			return
-		}
-		return true, func() error {
-				return utlsReadRecord(tlsConn.Conn)
-			}, func() error {
-				return utlsHandlePostHandshakeMessage(tlsConn.Conn)
-			}
-	})
-}
-
-//go:linkname utlsReadRecord github.com/metacubex/utls.(*Conn).readRecord
-func utlsReadRecord(c *tls.Conn) error
-
-//go:linkname utlsHandlePostHandshakeMessage github.com/metacubex/utls.(*Conn).handlePostHandshakeMessage
-func utlsHandlePostHandshakeMessage(c *tls.Conn) error

common/badtls/registry.go

@@ -0,0 +1,62 @@
+//go:build go1.25 && badlinkname
+
+package badtls
+
+import (
+	"crypto/tls"
+	"net"
+	"unsafe"
+)
+
+type Methods struct {
+	readRecord                 func(c unsafe.Pointer) error
+	handlePostHandshakeMessage func(c unsafe.Pointer) error
+	writeRecordLocked          func(c unsafe.Pointer, typ uint16, data []byte) (int, error)
+
+	setErrorLocked   func(hc unsafe.Pointer, err error) error
+	decrypt          func(hc unsafe.Pointer, record []byte) ([]byte, uint8, error)
+	setTrafficSecret func(hc unsafe.Pointer, suite unsafe.Pointer, level int, secret []byte)
+	explicitNonceLen func(hc unsafe.Pointer) int
+}
+
+var methodRegistry []func(conn net.Conn) (unsafe.Pointer, *Methods, bool)
+
+func init() {
+	methodRegistry = append(methodRegistry, func(conn net.Conn) (unsafe.Pointer, *Methods, bool) {
+		tlsConn, loaded := conn.(*tls.Conn)
+		if !loaded {
+			return nil, nil, false
+		}
+		return unsafe.Pointer(tlsConn), &Methods{
+			readRecord:                 stdTLSReadRecord,
+			handlePostHandshakeMessage: stdTLSHandlePostHandshakeMessage,
+			writeRecordLocked:          stdWriteRecordLocked,
+
+			setErrorLocked:   stdSetErrorLocked,
+			decrypt:          stdDecrypt,
+			setTrafficSecret: stdSetTrafficSecret,
+			explicitNonceLen: stdExplicitNonceLen,
+		}, true
+	})
+}
+
+//go:linkname stdTLSReadRecord crypto/tls.(*Conn).readRecord
+func stdTLSReadRecord(c unsafe.Pointer) error
+
+//go:linkname stdTLSHandlePostHandshakeMessage crypto/tls.(*Conn).handlePostHandshakeMessage
+func stdTLSHandlePostHandshakeMessage(c unsafe.Pointer) error
+
+//go:linkname stdWriteRecordLocked crypto/tls.(*Conn).writeRecordLocked
+func stdWriteRecordLocked(c unsafe.Pointer, typ uint16, data []byte) (int, error)
+
+//go:linkname stdSetErrorLocked crypto/tls.(*halfConn).setErrorLocked
+func stdSetErrorLocked(hc unsafe.Pointer, err error) error
+
+//go:linkname stdDecrypt crypto/tls.(*halfConn).decrypt
+func stdDecrypt(hc unsafe.Pointer, record []byte) ([]byte, uint8, error)
+
+//go:linkname stdSetTrafficSecret crypto/tls.(*halfConn).setTrafficSecret
+func stdSetTrafficSecret(hc unsafe.Pointer, suite unsafe.Pointer, level int, secret []byte)
+
+//go:linkname stdExplicitNonceLen crypto/tls.(*halfConn).explicitNonceLen
+func stdExplicitNonceLen(hc unsafe.Pointer) int

common/badtls/registry_utls.go

@@ -0,0 +1,56 @@
+//go:build go1.25 && badlinkname
+
+package badtls
+
+import (
+	"net"
+	"unsafe"
+
+	N "github.com/sagernet/sing/common/network"
+
+	"github.com/metacubex/utls"
+)
+
+func init() {
+	methodRegistry = append(methodRegistry, func(conn net.Conn) (unsafe.Pointer, *Methods, bool) {
+		var pointer unsafe.Pointer
+		if uConn, loaded := N.CastReader[*tls.Conn](conn); loaded {
+			pointer = unsafe.Pointer(uConn)
+		} else if uConn, loaded := N.CastReader[*tls.UConn](conn); loaded {
+			pointer = unsafe.Pointer(uConn.Conn)
+		} else {
+			return nil, nil, false
+		}
+		return pointer, &Methods{
+			readRecord:                 utlsReadRecord,
+			handlePostHandshakeMessage: utlsHandlePostHandshakeMessage,
+			writeRecordLocked:          utlsWriteRecordLocked,
+
+			setErrorLocked:   utlsSetErrorLocked,
+			decrypt:          utlsDecrypt,
+			setTrafficSecret: utlsSetTrafficSecret,
+			explicitNonceLen: utlsExplicitNonceLen,
+		}, true
+	})
+}
+
+//go:linkname utlsReadRecord github.com/metacubex/utls.(*Conn).readRecord
+func utlsReadRecord(c unsafe.Pointer) error
+
+//go:linkname utlsHandlePostHandshakeMessage github.com/metacubex/utls.(*Conn).handlePostHandshakeMessage
+func utlsHandlePostHandshakeMessage(c unsafe.Pointer) error
+
+//go:linkname utlsWriteRecordLocked github.com/metacubex/utls.(*Conn).writeRecordLocked
+func utlsWriteRecordLocked(hc unsafe.Pointer, typ uint16, data []byte) (int, error)
+
+//go:linkname utlsSetErrorLocked github.com/metacubex/utls.(*halfConn).setErrorLocked
+func utlsSetErrorLocked(hc unsafe.Pointer, err error) error
+
+//go:linkname utlsDecrypt github.com/metacubex/utls.(*halfConn).decrypt
+func utlsDecrypt(hc unsafe.Pointer, record []byte) ([]byte, uint8, error)
+
+//go:linkname utlsSetTrafficSecret github.com/metacubex/utls.(*halfConn).setTrafficSecret
+func utlsSetTrafficSecret(hc unsafe.Pointer, suite unsafe.Pointer, level int, secret []byte)
+
+//go:linkname utlsExplicitNonceLen github.com/metacubex/utls.(*halfConn).explicitNonceLen
+func utlsExplicitNonceLen(hc unsafe.Pointer) int

common/badversion/version.go

@@ -5,6 +5,8 @@ import (
 	"strings"
 
 	F "github.com/sagernet/sing/common/format"
+
+	"golang.org/x/mod/semver"
 )
 
 type Version struct {
@@ -16,7 +18,19 @@ type Version struct {
 	PreReleaseVersion    int
 }
 
-func (v Version) After(anotherVersion Version) bool {
+func (v Version) LessThan(anotherVersion Version) bool {
+	return !v.GreaterThanOrEqual(anotherVersion)
+}
+
+func (v Version) LessThanOrEqual(anotherVersion Version) bool {
+	return v == anotherVersion || anotherVersion.GreaterThan(v)
+}
+
+func (v Version) GreaterThanOrEqual(anotherVersion Version) bool {
+	return v == anotherVersion || v.GreaterThan(anotherVersion)
+}
+
+func (v Version) GreaterThan(anotherVersion Version) bool {
 	if v.Major > anotherVersion.Major {
 		return true
 	} else if v.Major < anotherVersion.Major {
@@ -44,19 +58,29 @@ func (v Version) After(anotherVersion Version) bool {
 			} else if v.PreReleaseVersion < anotherVersion.PreReleaseVersion {
 				return false
 			}
-		} else if v.PreReleaseIdentifier == "rc" && anotherVersion.PreReleaseIdentifier == "beta" {
+		}
+		preReleaseIdentifier := parsePreReleaseIdentifier(v.PreReleaseIdentifier)
+		anotherPreReleaseIdentifier := parsePreReleaseIdentifier(anotherVersion.PreReleaseIdentifier)
+		if preReleaseIdentifier < anotherPreReleaseIdentifier {
 			return true
-		} else if v.PreReleaseIdentifier == "beta" && anotherVersion.PreReleaseIdentifier == "rc" {
-			return false
-		} else if v.PreReleaseIdentifier == "beta" && anotherVersion.PreReleaseIdentifier == "alpha" {
-			return true
-		} else if v.PreReleaseIdentifier == "alpha" && anotherVersion.PreReleaseIdentifier == "beta" {
+		} else if preReleaseIdentifier > anotherPreReleaseIdentifier {
 			return false
 		}
 	}
 	return false
 }
 
+func parsePreReleaseIdentifier(identifier string) int {
+	if strings.HasPrefix(identifier, "rc") {
+		return 1
+	} else if strings.HasPrefix(identifier, "beta") {
+		return 2
+	} else if strings.HasPrefix(identifier, "alpha") {
+		return 3
+	}
+	return 0
+}
+
 func (v Version) VersionString() string {
 	return F.ToString(v.Major, ".", v.Minor, ".", v.Patch)
 }
@@ -83,6 +107,10 @@ func (v Version) BadString() string {
 	return version
 }
 
+func IsValid(versionName string) bool {
+	return semver.IsValid("v" + versionName)
+}
+
 func Parse(versionName string) (version Version) {
 	if strings.HasPrefix(versionName, "v") {
 		versionName = versionName[1:]

common/badversion/version_test.go

@@ -10,9 +10,9 @@ func TestCompareVersion(t *testing.T) {
 	t.Parallel()
 	require.Equal(t, "1.3.0-beta.1", Parse("v1.3.0-beta1").String())
 	require.Equal(t, "1.3-beta1", Parse("v1.3.0-beta.1").BadString())
-	require.True(t, Parse("1.3.0").After(Parse("1.3-beta1")))
-	require.True(t, Parse("1.3.0").After(Parse("1.3.0-beta1")))
-	require.True(t, Parse("1.3.0-beta1").After(Parse("1.3.0-alpha1")))
-	require.True(t, Parse("1.3.1").After(Parse("1.3.0")))
-	require.True(t, Parse("1.4").After(Parse("1.3")))
+	require.True(t, Parse("1.3.0").GreaterThan(Parse("1.3-beta1")))
+	require.True(t, Parse("1.3.0").GreaterThan(Parse("1.3.0-beta1")))
+	require.True(t, Parse("1.3.0-beta1").GreaterThan(Parse("1.3.0-alpha1")))
+	require.True(t, Parse("1.3.1").GreaterThan(Parse("1.3.0")))
+	require.True(t, Parse("1.4").GreaterThan(Parse("1.3")))
 }

common/certificate/store.go

@@ -7,11 +7,11 @@ import (
 	"os"
 	"path/filepath"
 	"strings"
+	"sync"
 
 	"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"
@@ -21,6 +21,7 @@ import (
 var _ adapter.CertificateStore = (*Store)(nil)
 
 type Store struct {
+	access                    sync.RWMutex
 	systemPool                *x509.CertPool
 	currentPool               *x509.CertPool
 	certificate               string
@@ -34,7 +35,7 @@ func NewStore(ctx context.Context, logger logger.Logger, options option.Certific
 	switch options.Store {
 	case C.CertificateStoreSystem, "":
 		systemPool = x509.NewCertPool()
-		platformInterface := service.FromContext[platform.Interface](ctx)
+		platformInterface := service.FromContext[adapter.PlatformInterface](ctx)
 		var systemValid bool
 		if platformInterface != nil {
 			for _, cert := range platformInterface.SystemCertificates() {
@@ -52,6 +53,8 @@ func NewStore(ctx context.Context, logger logger.Logger, options option.Certific
 		}
 	case C.CertificateStoreMozilla:
 		systemPool = mozillaIncluded
+	case C.CertificateStoreChrome:
+		systemPool = chromeIncluded
 	case C.CertificateStoreNone:
 		systemPool = nil
 	default:
@@ -115,10 +118,14 @@ func (s *Store) Close() error {
 }
 
 func (s *Store) Pool() *x509.CertPool {
+	s.access.RLock()
+	defer s.access.RUnlock()
 	return s.currentPool
 }
 
 func (s *Store) update() error {
+	s.access.Lock()
+	defer s.access.Unlock()
 	var currentPool *x509.CertPool
 	if s.systemPool == nil {
 		currentPool = x509.NewCertPool()

common/conntrack/conn.go

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

common/conntrack/killer.go

@@ -1,35 +0,0 @@
-package conntrack
-
-import (
-	runtimeDebug "runtime/debug"
-	"time"
-
-	E "github.com/sagernet/sing/common/exceptions"
-	"github.com/sagernet/sing/common/memory"
-)
-
-var (
-	KillerEnabled   bool
-	MemoryLimit     uint64
-	killerLastCheck time.Time
-)
-
-func KillerCheck() error {
-	if !KillerEnabled {
-		return nil
-	}
-	nowTime := time.Now()
-	if nowTime.Sub(killerLastCheck) < 3*time.Second {
-		return nil
-	}
-	killerLastCheck = nowTime
-	if memory.Total() > MemoryLimit {
-		Close()
-		go func() {
-			time.Sleep(time.Second)
-			runtimeDebug.FreeOSMemory()
-		}()
-		return E.New("out of memory")
-	}
-	return nil
-}

common/conntrack/packet_conn.go

@@ -1,55 +0,0 @@
-package conntrack
-
-import (
-	"io"
-	"net"
-
-	"github.com/sagernet/sing/common/bufio"
-	"github.com/sagernet/sing/common/x/list"
-)
-
-type PacketConn struct {
-	net.PacketConn
-	element *list.Element[io.Closer]
-}
-
-func NewPacketConn(conn net.PacketConn) (net.PacketConn, error) {
-	connAccess.Lock()
-	element := openConnection.PushBack(conn)
-	connAccess.Unlock()
-	if KillerEnabled {
-		err := KillerCheck()
-		if err != nil {
-			conn.Close()
-			return nil, err
-		}
-	}
-	return &PacketConn{
-		PacketConn: conn,
-		element:    element,
-	}, nil
-}
-
-func (c *PacketConn) Close() error {
-	if c.element.Value != nil {
-		connAccess.Lock()
-		if c.element.Value != nil {
-			openConnection.Remove(c.element)
-			c.element.Value = nil
-		}
-		connAccess.Unlock()
-	}
-	return c.PacketConn.Close()
-}
-
-func (c *PacketConn) Upstream() any {
-	return bufio.NewPacketConn(c.PacketConn)
-}
-
-func (c *PacketConn) ReaderReplaceable() bool {
-	return true
-}
-
-func (c *PacketConn) WriterReplaceable() bool {
-	return true
-}

common/conntrack/track.go

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

common/conntrack/track_disable.go

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

common/conntrack/track_enable.go

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

common/convertor/adguard/convertor.go

@@ -454,5 +454,5 @@ func parseADGuardIPCIDRLine(ruleLine string) (netip.Prefix, error) {
 	for len(ruleParts) < 4 {
 		ruleParts = append(ruleParts, 0)
 	}
-	return netip.PrefixFrom(netip.AddrFrom4(*(*[4]byte)(ruleParts)), bitLen), nil
+	return netip.PrefixFrom(netip.AddrFrom4([4]byte(ruleParts)), bitLen), nil
 }

common/dialer/default.go

@@ -9,18 +9,17 @@ import (
 	"time"
 
 	"github.com/sagernet/sing-box/adapter"
-	"github.com/sagernet/sing-box/common/conntrack"
 	"github.com/sagernet/sing-box/common/listener"
 	C "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing-box/experimental/libbox/platform"
 	"github.com/sagernet/sing-box/option"
 	"github.com/sagernet/sing/common"
-	"github.com/sagernet/sing/common/atomic"
 	"github.com/sagernet/sing/common/control"
 	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
 	"github.com/sagernet/sing/service"
+
+	"github.com/database64128/tfo-go/v2"
 )
 
 var (
@@ -29,26 +28,28 @@ var (
 )
 
 type DefaultDialer struct {
-	dialer4                tcpDialer
-	dialer6                tcpDialer
+	dialer4                tfo.Dialer
+	dialer6                tfo.Dialer
 	udpDialer4             net.Dialer
 	udpDialer6             net.Dialer
 	udpListener            net.ListenConfig
 	udpAddr4               string
 	udpAddr6               string
 	netns                  string
+	connectionManager      adapter.ConnectionManager
 	networkManager         adapter.NetworkManager
 	networkStrategy        *C.NetworkStrategy
 	defaultNetworkStrategy bool
 	networkType            []C.InterfaceType
 	fallbackNetworkType    []C.InterfaceType
 	networkFallbackDelay   time.Duration
-	networkLastFallback    atomic.TypedValue[time.Time]
+	networkLastFallback    common.TypedValue[time.Time]
 }
 
 func NewDefault(ctx context.Context, options option.DialerOptions) (*DefaultDialer, error) {
+	connectionManager := service.FromContext[adapter.ConnectionManager](ctx)
 	networkManager := service.FromContext[adapter.NetworkManager](ctx)
-	platformInterface := service.FromContext[platform.Interface](ctx)
+	platformInterface := service.FromContext[adapter.PlatformInterface](ctx)
 
 	var (
 		dialer                 net.Dialer
@@ -89,37 +90,35 @@ func NewDefault(ctx context.Context, options option.DialerOptions) (*DefaultDial
 
 	if networkManager != nil {
 		defaultOptions := networkManager.DefaultOptions()
-		if !disableDefaultBind {
-			if defaultOptions.BindInterface != "" {
-				bindFunc := control.BindToInterface(networkManager.InterfaceFinder(), defaultOptions.BindInterface, -1)
+		if defaultOptions.BindInterface != "" && !disableDefaultBind {
+			bindFunc := control.BindToInterface(networkManager.InterfaceFinder(), defaultOptions.BindInterface, -1)
+			dialer.Control = control.Append(dialer.Control, bindFunc)
+			listener.Control = control.Append(listener.Control, bindFunc)
+		} else if networkManager.AutoDetectInterface() && !disableDefaultBind {
+			if platformInterface != nil {
+				networkStrategy = (*C.NetworkStrategy)(options.NetworkStrategy)
+				networkType = common.Map(options.NetworkType, option.InterfaceType.Build)
+				fallbackNetworkType = common.Map(options.FallbackNetworkType, option.InterfaceType.Build)
+				if networkStrategy == nil && len(networkType) == 0 && len(fallbackNetworkType) == 0 {
+					networkStrategy = defaultOptions.NetworkStrategy
+					networkType = defaultOptions.NetworkType
+					fallbackNetworkType = defaultOptions.FallbackNetworkType
+				}
+				networkFallbackDelay = time.Duration(options.FallbackDelay)
+				if networkFallbackDelay == 0 && defaultOptions.FallbackDelay != 0 {
+					networkFallbackDelay = defaultOptions.FallbackDelay
+				}
+				if networkStrategy == nil {
+					networkStrategy = common.Ptr(C.NetworkStrategyDefault)
+					defaultNetworkStrategy = true
+				}
+				bindFunc := networkManager.ProtectFunc()
+				dialer.Control = control.Append(dialer.Control, bindFunc)
+				listener.Control = control.Append(listener.Control, bindFunc)
+			} else {
+				bindFunc := networkManager.AutoDetectInterfaceFunc()
 				dialer.Control = control.Append(dialer.Control, bindFunc)
 				listener.Control = control.Append(listener.Control, bindFunc)
-			} else if networkManager.AutoDetectInterface() {
-				if platformInterface != nil {
-					networkStrategy = (*C.NetworkStrategy)(options.NetworkStrategy)
-					networkType = common.Map(options.NetworkType, option.InterfaceType.Build)
-					fallbackNetworkType = common.Map(options.FallbackNetworkType, option.InterfaceType.Build)
-					if networkStrategy == nil && len(networkType) == 0 && len(fallbackNetworkType) == 0 {
-						networkStrategy = defaultOptions.NetworkStrategy
-						networkType = defaultOptions.NetworkType
-						fallbackNetworkType = defaultOptions.FallbackNetworkType
-					}
-					networkFallbackDelay = time.Duration(options.FallbackDelay)
-					if networkFallbackDelay == 0 && defaultOptions.FallbackDelay != 0 {
-						networkFallbackDelay = defaultOptions.FallbackDelay
-					}
-					if networkStrategy == nil {
-						networkStrategy = common.Ptr(C.NetworkStrategyDefault)
-						defaultNetworkStrategy = true
-					}
-					bindFunc := networkManager.ProtectFunc()
-					dialer.Control = control.Append(dialer.Control, bindFunc)
-					listener.Control = control.Append(listener.Control, bindFunc)
-				} else {
-					bindFunc := networkManager.AutoDetectInterfaceFunc()
-					dialer.Control = control.Append(dialer.Control, bindFunc)
-					listener.Control = control.Append(listener.Control, bindFunc)
-				}
 			}
 		}
 		if options.RoutingMark == 0 && defaultOptions.RoutingMark != 0 {
@@ -127,6 +126,11 @@ func NewDefault(ctx context.Context, options option.DialerOptions) (*DefaultDial
 			listener.Control = control.Append(listener.Control, setMarkWrapper(networkManager, defaultOptions.RoutingMark, true))
 		}
 	}
+	if networkManager != nil {
+		markFunc := networkManager.AutoRedirectOutputMarkFunc()
+		dialer.Control = control.Append(dialer.Control, markFunc)
+		listener.Control = control.Append(listener.Control, markFunc)
+	}
 	if options.ReuseAddr {
 		listener.Control = control.Append(listener.Control, control.ReuseAddr())
 	}
@@ -134,14 +138,35 @@ func NewDefault(ctx context.Context, options option.DialerOptions) (*DefaultDial
 		dialer.Control = control.Append(dialer.Control, control.ProtectPath(options.ProtectPath))
 		listener.Control = control.Append(listener.Control, control.ProtectPath(options.ProtectPath))
 	}
+	if options.BindAddressNoPort {
+		if !C.IsLinux {
+			return nil, E.New("`bind_address_no_port` is only supported on Linux")
+		}
+		dialer.Control = control.Append(dialer.Control, control.BindAddressNoPort())
+	}
 	if options.ConnectTimeout != 0 {
 		dialer.Timeout = time.Duration(options.ConnectTimeout)
 	} else {
 		dialer.Timeout = C.TCPConnectTimeout
 	}
-	// TODO: Add an option to customize the keep alive period
-	dialer.KeepAlive = C.TCPKeepAliveInitial
-	dialer.Control = control.Append(dialer.Control, control.SetKeepAlivePeriod(C.TCPKeepAliveInitial, C.TCPKeepAliveInterval))
+	if options.DisableTCPKeepAlive {
+		dialer.KeepAlive = -1
+		dialer.KeepAliveConfig.Enable = false
+	} else {
+		keepIdle := time.Duration(options.TCPKeepAlive)
+		if keepIdle == 0 {
+			keepIdle = C.TCPKeepAliveInitial
+		}
+		keepInterval := time.Duration(options.TCPKeepAliveInterval)
+		if keepInterval == 0 {
+			keepInterval = C.TCPKeepAliveInterval
+		}
+		dialer.KeepAliveConfig = net.KeepAliveConfig{
+			Enable:   true,
+			Idle:     keepIdle,
+			Interval: keepInterval,
+		}
+	}
 	var udpFragment bool
 	if options.UDPFragment != nil {
 		udpFragment = *options.UDPFragment
@@ -175,19 +200,10 @@ func NewDefault(ctx context.Context, options option.DialerOptions) (*DefaultDial
 		udpAddr6 = M.SocksaddrFrom(bindAddr, 0).String()
 	}
 	if options.TCPMultiPath {
-		if !go121Available {
-			return nil, E.New("MultiPath TCP requires go1.21, please recompile your binary.")
-		}
-		setMultiPathTCP(&dialer4)
-	}
-	tcpDialer4, err := newTCPDialer(dialer4, options.TCPFastOpen)
-	if err != nil {
-		return nil, err
-	}
-	tcpDialer6, err := newTCPDialer(dialer6, options.TCPFastOpen)
-	if err != nil {
-		return nil, err
+		dialer4.SetMultipathTCP(true)
 	}
+	tcpDialer4 := tfo.Dialer{Dialer: dialer4, DisableTFO: !options.TCPFastOpen}
+	tcpDialer6 := tfo.Dialer{Dialer: dialer6, DisableTFO: !options.TCPFastOpen}
 	return &DefaultDialer{
 		dialer4:                tcpDialer4,
 		dialer6:                tcpDialer6,
@@ -197,6 +213,7 @@ func NewDefault(ctx context.Context, options option.DialerOptions) (*DefaultDial
 		udpAddr4:               udpAddr4,
 		udpAddr6:               udpAddr6,
 		netns:                  options.NetNs,
+		connectionManager:      connectionManager,
 		networkManager:         networkManager,
 		networkStrategy:        networkStrategy,
 		defaultNetworkStrategy: defaultNetworkStrategy,
@@ -225,11 +242,11 @@ func setMarkWrapper(networkManager adapter.NetworkManager, mark uint32, isDefaul
 func (d *DefaultDialer) DialContext(ctx context.Context, network string, address M.Socksaddr) (net.Conn, error) {
 	if !address.IsValid() {
 		return nil, E.New("invalid address")
-	} else if address.IsFqdn() {
+	} else if address.IsDomain() {
 		return nil, E.New("domain not resolved")
 	}
 	if d.networkStrategy == nil {
-		return trackConn(listener.ListenNetworkNamespace[net.Conn](d.netns, func() (net.Conn, error) {
+		return d.trackConn(listener.ListenNetworkNamespace[net.Conn](d.netns, func() (net.Conn, error) {
 			switch N.NetworkName(network) {
 			case N.NetworkUDP:
 				if !address.IsIPv6() {
@@ -267,11 +284,11 @@ func (d *DefaultDialer) DialParallelInterface(ctx context.Context, network strin
 	}
 	var dialer net.Dialer
 	if N.NetworkName(network) == N.NetworkTCP {
-		dialer = dialerFromTCPDialer(d.dialer4)
+		dialer = d.dialer4.Dialer
 	} else {
 		dialer = d.udpDialer4
 	}
-	fastFallback := time.Now().Sub(d.networkLastFallback.Load()) < C.TCPTimeout
+	fastFallback := time.Since(d.networkLastFallback.Load()) < C.TCPTimeout
 	var (
 		conn      net.Conn
 		isPrimary bool
@@ -294,12 +311,12 @@ func (d *DefaultDialer) DialParallelInterface(ctx context.Context, network strin
 	if !fastFallback && !isPrimary {
 		d.networkLastFallback.Store(time.Now())
 	}
-	return trackConn(conn, nil)
+	return d.trackConn(conn, nil)
 }
 
 func (d *DefaultDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
 	if d.networkStrategy == nil {
-		return trackPacketConn(listener.ListenNetworkNamespace[net.PacketConn](d.netns, func() (net.PacketConn, error) {
+		return d.trackPacketConn(listener.ListenNetworkNamespace[net.PacketConn](d.netns, func() (net.PacketConn, error) {
 			if destination.IsIPv6() {
 				return d.udpListener.ListenPacket(ctx, N.NetworkUDP, d.udpAddr6)
 			} else if destination.IsIPv4() && !destination.Addr.IsUnspecified() {
@@ -313,6 +330,14 @@ func (d *DefaultDialer) ListenPacket(ctx context.Context, destination M.Socksadd
 	}
 }
 
+func (d *DefaultDialer) DialerForICMPDestination(destination netip.Addr) net.Dialer {
+	if !destination.Is6() {
+		return d.dialer4.Dialer
+	} else {
+		return d.dialer6.Dialer
+	}
+}
+
 func (d *DefaultDialer) ListenSerialInterfacePacket(ctx context.Context, destination M.Socksaddr, strategy *C.NetworkStrategy, interfaceType []C.InterfaceType, fallbackInterfaceType []C.InterfaceType, fallbackDelay time.Duration) (net.PacketConn, error) {
 	if strategy == nil {
 		strategy = d.networkStrategy
@@ -343,33 +368,23 @@ func (d *DefaultDialer) ListenSerialInterfacePacket(ctx context.Context, destina
 			return nil, err
 		}
 	}
-	return trackPacketConn(packetConn, nil)
+	return d.trackPacketConn(packetConn, nil)
 }
 
-func (d *DefaultDialer) ListenPacketCompat(network, address string) (net.PacketConn, error) {
-	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 (d *DefaultDialer) WireGuardControl() control.Func {
+	return d.udpListener.Control
 }
 
-func trackConn(conn net.Conn, err error) (net.Conn, error) {
-	if !conntrack.Enabled || err != nil {
+func (d *DefaultDialer) trackConn(conn net.Conn, err error) (net.Conn, error) {
+	if d.connectionManager == nil || err != nil {
 		return conn, err
 	}
-	return conntrack.NewConn(conn)
+	return d.connectionManager.TrackConn(conn), nil
 }
 
-func trackPacketConn(conn net.PacketConn, err error) (net.PacketConn, error) {
-	if !conntrack.Enabled || err != nil {
+func (d *DefaultDialer) trackPacketConn(conn net.PacketConn, err error) (net.PacketConn, error) {
+	if d.connectionManager == nil || err != nil {
 		return conn, err
 	}
-	return conntrack.NewPacketConn(conn)
+	return d.connectionManager.TrackPacketConn(conn), nil
 }

common/dialer/default_go1.20.go

@@ -1,19 +0,0 @@
-//go:build go1.20
-
-package dialer
-
-import (
-	"net"
-
-	"github.com/metacubex/tfo-go"
-)
-
-type tcpDialer = tfo.Dialer
-
-func newTCPDialer(dialer net.Dialer, tfoEnabled bool) (tcpDialer, error) {
-	return tfo.Dialer{Dialer: dialer, DisableTFO: !tfoEnabled}, nil
-}
-
-func dialerFromTCPDialer(dialer tcpDialer) net.Dialer {
-	return dialer.Dialer
-}

common/dialer/default_go1.21.go

@@ -1,11 +0,0 @@
-//go:build go1.21
-
-package dialer
-
-import "net"
-
-const go121Available = true
-
-func setMultiPathTCP(dialer *net.Dialer) {
-	dialer.SetMultipathTCP(true)
-}

common/dialer/default_nongo1.20.go

@@ -1,22 +0,0 @@
-//go:build !go1.20
-
-package dialer
-
-import (
-	"net"
-
-	E "github.com/sagernet/sing/common/exceptions"
-)
-
-type tcpDialer = net.Dialer
-
-func newTCPDialer(dialer net.Dialer, tfoEnabled bool) (tcpDialer, error) {
-	if tfoEnabled {
-		return dialer, E.New("TCP Fast Open requires go1.20, please recompile your binary.")
-	}
-	return dialer, nil
-}
-
-func dialerFromTCPDialer(dialer tcpDialer) net.Dialer {
-	return dialer
-}

common/dialer/default_nongo1.21.go

@@ -1,12 +0,0 @@
-//go:build !go1.21
-
-package dialer
-
-import (
-	"net"
-)
-
-const go121Available = false
-
-func setMultiPathTCP(dialer *net.Dialer) {
-}

common/dialer/dialer.go

@@ -111,7 +111,7 @@ func NewWithOptions(options Options) (N.Dialer, error) {
 					dnsQueryOptions.Transport = dnsTransport.Default()
 				} else if options.NewDialer {
 					return nil, E.New("missing domain resolver for domain server address")
-				} else if !options.DirectOutbound {
+				} else {
 					deprecated.Report(options.Context, deprecated.OptionMissingDomainResolver)
 				}
 			}
@@ -145,3 +145,7 @@ type ParallelNetworkDialer interface {
 	DialParallelNetwork(ctx context.Context, network string, destination M.Socksaddr, destinationAddresses []netip.Addr, strategy *C.NetworkStrategy, interfaceType []C.InterfaceType, fallbackInterfaceType []C.InterfaceType, fallbackDelay time.Duration) (net.Conn, error)
 	ListenSerialNetworkPacket(ctx context.Context, destination M.Socksaddr, destinationAddresses []netip.Addr, strategy *C.NetworkStrategy, interfaceType []C.InterfaceType, fallbackInterfaceType []C.InterfaceType, fallbackDelay time.Duration) (net.PacketConn, netip.Addr, error)
 }
+
+type PacketDialerWithDestination interface {
+	ListenPacketWithDestination(ctx context.Context, destination M.Socksaddr) (net.PacketConn, netip.Addr, error)
+}

common/dialer/resolve.go

@@ -96,7 +96,7 @@ func (d *resolveDialer) DialContext(ctx context.Context, network string, destina
 	if err != nil {
 		return nil, err
 	}
-	if !destination.IsFqdn() {
+	if !destination.IsDomain() {
 		return d.dialer.DialContext(ctx, network, destination)
 	}
 	ctx = log.ContextWithOverrideLevel(ctx, log.LevelDebug)
@@ -116,7 +116,7 @@ func (d *resolveDialer) ListenPacket(ctx context.Context, destination M.Socksadd
 	if err != nil {
 		return nil, err
 	}
-	if !destination.IsFqdn() {
+	if !destination.IsDomain() {
 		return d.dialer.ListenPacket(ctx, destination)
 	}
 	ctx = log.ContextWithOverrideLevel(ctx, log.LevelDebug)
@@ -144,7 +144,7 @@ func (d *resolveParallelNetworkDialer) DialParallelInterface(ctx context.Context
 	if err != nil {
 		return nil, err
 	}
-	if !destination.IsFqdn() {
+	if !destination.IsDomain() {
 		return d.dialer.DialContext(ctx, network, destination)
 	}
 	ctx = log.ContextWithOverrideLevel(ctx, log.LevelDebug)
@@ -167,7 +167,7 @@ func (d *resolveParallelNetworkDialer) ListenSerialInterfacePacket(ctx context.C
 	if err != nil {
 		return nil, err
 	}
-	if !destination.IsFqdn() {
+	if !destination.IsDomain() {
 		return d.dialer.ListenPacket(ctx, destination)
 	}
 	ctx = log.ContextWithOverrideLevel(ctx, log.LevelDebug)

common/dialer/tfo.go

@@ -1,5 +1,3 @@
-//go:build go1.20
-
 package dialer
 
 import (
@@ -8,13 +6,15 @@ import (
 	"net"
 	"os"
 	"sync"
+	"sync/atomic"
 	"time"
 
+	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/bufio"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
 
-	"github.com/metacubex/tfo-go"
+	"github.com/database64128/tfo-go/v2"
 )
 
 type slowOpenConn struct {
@@ -22,7 +22,7 @@ type slowOpenConn struct {
 	ctx         context.Context
 	network     string
 	destination M.Socksaddr
-	conn        net.Conn
+	conn        atomic.Pointer[net.TCPConn]
 	create      chan struct{}
 	done        chan struct{}
 	access      sync.Mutex
@@ -30,7 +30,7 @@ type slowOpenConn struct {
 	err         error
 }
 
-func DialSlowContext(dialer *tcpDialer, ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
+func DialSlowContext(dialer *tfo.Dialer, ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
 	if dialer.DisableTFO || N.NetworkName(network) != N.NetworkTCP {
 		switch N.NetworkName(network) {
 		case N.NetworkTCP, N.NetworkUDP:
@@ -50,22 +50,25 @@ func DialSlowContext(dialer *tcpDialer, ctx context.Context, network string, des
 }
 
 func (c *slowOpenConn) Read(b []byte) (n int, err error) {
-	if c.conn == nil {
-		select {
-		case <-c.create:
-			if c.err != nil {
-				return 0, c.err
-			}
-		case <-c.done:
-			return 0, os.ErrClosed
-		}
+	conn := c.conn.Load()
+	if conn != nil {
+		return conn.Read(b)
+	}
+	select {
+	case <-c.create:
+		if c.err != nil {
+			return 0, c.err
+		}
+		return c.conn.Load().Read(b)
+	case <-c.done:
+		return 0, os.ErrClosed
 	}
-	return c.conn.Read(b)
 }
 
 func (c *slowOpenConn) Write(b []byte) (n int, err error) {
-	if c.conn != nil {
-		return c.conn.Write(b)
+	tcpConn := c.conn.Load()
+	if tcpConn != nil {
+		return tcpConn.Write(b)
 	}
 	c.access.Lock()
 	defer c.access.Unlock()
@@ -74,7 +77,7 @@ func (c *slowOpenConn) Write(b []byte) (n int, err error) {
 		if c.err != nil {
 			return 0, c.err
 		}
-		return c.conn.Write(b)
+		return c.conn.Load().Write(b)
 	case <-c.done:
 		return 0, os.ErrClosed
 	default:
@@ -83,7 +86,7 @@ func (c *slowOpenConn) Write(b []byte) (n int, err error) {
 	if err != nil {
 		c.err = err
 	} else {
-		c.conn = conn
+		c.conn.Store(conn.(*net.TCPConn))
 	}
 	n = len(b)
 	close(c.create)
@@ -93,70 +96,77 @@ func (c *slowOpenConn) Write(b []byte) (n int, err error) {
 func (c *slowOpenConn) Close() error {
 	c.closeOnce.Do(func() {
 		close(c.done)
-		if c.conn != nil {
-			c.conn.Close()
+		conn := c.conn.Load()
+		if conn != nil {
+			conn.Close()
 		}
 	})
 	return nil
 }
 
 func (c *slowOpenConn) LocalAddr() net.Addr {
-	if c.conn == nil {
+	conn := c.conn.Load()
+	if conn == nil {
 		return M.Socksaddr{}
 	}
-	return c.conn.LocalAddr()
+	return conn.LocalAddr()
 }
 
 func (c *slowOpenConn) RemoteAddr() net.Addr {
-	if c.conn == nil {
+	conn := c.conn.Load()
+	if conn == nil {
 		return M.Socksaddr{}
 	}
-	return c.conn.RemoteAddr()
+	return conn.RemoteAddr()
 }
 
 func (c *slowOpenConn) SetDeadline(t time.Time) error {
-	if c.conn == nil {
+	conn := c.conn.Load()
+	if conn == nil {
 		return os.ErrInvalid
 	}
-	return c.conn.SetDeadline(t)
+	return conn.SetDeadline(t)
 }
 
 func (c *slowOpenConn) SetReadDeadline(t time.Time) error {
-	if c.conn == nil {
+	conn := c.conn.Load()
+	if conn == nil {
 		return os.ErrInvalid
 	}
-	return c.conn.SetReadDeadline(t)
+	return conn.SetReadDeadline(t)
 }
 
 func (c *slowOpenConn) SetWriteDeadline(t time.Time) error {
-	if c.conn == nil {
+	conn := c.conn.Load()
+	if conn == nil {
 		return os.ErrInvalid
 	}
-	return c.conn.SetWriteDeadline(t)
+	return conn.SetWriteDeadline(t)
 }
 
 func (c *slowOpenConn) Upstream() any {
-	return c.conn
+	return common.PtrOrNil(c.conn.Load())
 }
 
 func (c *slowOpenConn) ReaderReplaceable() bool {
-	return c.conn != nil
+	return c.conn.Load() != nil
 }
 
 func (c *slowOpenConn) WriterReplaceable() bool {
-	return c.conn != nil
+	return c.conn.Load() != nil
 }
 
 func (c *slowOpenConn) LazyHeadroom() bool {
-	return c.conn == nil
+	return c.conn.Load() == nil
 }
 
 func (c *slowOpenConn) NeedHandshake() bool {
-	return c.conn == nil
+	return c.conn.Load() == nil
 }
 
 func (c *slowOpenConn) WriteTo(w io.Writer) (n int64, err error) {
-	if c.conn == nil {
+	conn := c.conn.Load()
+	if conn == nil {
 		select {
 		case <-c.create:
 			if c.err != nil {
@@ -166,5 +176,5 @@ func (c *slowOpenConn) WriteTo(w io.Writer) (n int64, err error) {
 			return 0, c.err
 		}
 	}
-	return bufio.Copy(w, c.conn)
+	return bufio.Copy(w, c.conn.Load())
 }

common/dialer/tfo_stub.go

@@ -1,20 +0,0 @@
-//go:build !go1.20
-
-package dialer
-
-import (
-	"context"
-	"net"
-
-	M "github.com/sagernet/sing/common/metadata"
-	N "github.com/sagernet/sing/common/network"
-)
-
-func DialSlowContext(dialer *tcpDialer, ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
-	switch N.NetworkName(network) {
-	case N.NetworkTCP, N.NetworkUDP:
-		return dialer.DialContext(ctx, network, destination.String())
-	default:
-		return dialer.DialContext(ctx, network, destination.AddrString())
-	}
-}

common/dialer/wireguard.go

@@ -1,13 +1,9 @@
 package dialer
 
 import (
-	"net"
-
 	"github.com/sagernet/sing/common/control"
 )
 
 type WireGuardListener interface {
-	ListenPacketCompat(network, address string) (net.PacketConn, error)
+	WireGuardControl() control.Func
 }
-
-var WgControlFns []control.Func

common/geosite/compat_test.go

@@ -0,0 +1,234 @@
+package geosite
+
+import (
+	"bufio"
+	"bytes"
+	"encoding/binary"
+	"strings"
+	"testing"
+
+	"github.com/sagernet/sing/common/varbin"
+
+	"github.com/stretchr/testify/require"
+)
+
+// Old implementation using varbin reflection-based serialization
+
+func oldWriteString(writer varbin.Writer, value string) error {
+	//nolint:staticcheck
+	return varbin.Write(writer, binary.BigEndian, value)
+}
+
+func oldWriteItem(writer varbin.Writer, item Item) error {
+	//nolint:staticcheck
+	return varbin.Write(writer, binary.BigEndian, item)
+}
+
+func oldReadString(reader varbin.Reader) (string, error) {
+	//nolint:staticcheck
+	return varbin.ReadValue[string](reader, binary.BigEndian)
+}
+
+func oldReadItem(reader varbin.Reader) (Item, error) {
+	//nolint:staticcheck
+	return varbin.ReadValue[Item](reader, binary.BigEndian)
+}
+
+func TestStringCompat(t *testing.T) {
+	t.Parallel()
+
+	cases := []struct {
+		name  string
+		input string
+	}{
+		{"empty", ""},
+		{"single_char", "a"},
+		{"ascii", "example.com"},
+		{"utf8", "测试域名.中国"},
+		{"special_chars", "\x00\xff\n\t"},
+		{"127_bytes", strings.Repeat("x", 127)},
+		{"128_bytes", strings.Repeat("x", 128)},
+		{"16383_bytes", strings.Repeat("x", 16383)},
+		{"16384_bytes", strings.Repeat("x", 16384)},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+
+			// Old write
+			var oldBuf bytes.Buffer
+			err := oldWriteString(&oldBuf, tc.input)
+			require.NoError(t, err)
+
+			// New write
+			var newBuf bytes.Buffer
+			err = writeString(&newBuf, tc.input)
+			require.NoError(t, err)
+
+			// Bytes must match
+			require.Equal(t, oldBuf.Bytes(), newBuf.Bytes(),
+				"mismatch for %q\nold: %x\nnew: %x", tc.name, oldBuf.Bytes(), newBuf.Bytes())
+
+			// New write -> old read
+			readBack, err := oldReadString(bufio.NewReader(bytes.NewReader(newBuf.Bytes())))
+			require.NoError(t, err)
+			require.Equal(t, tc.input, readBack)
+
+			// Old write -> new read
+			readBack2, err := readString(bufio.NewReader(bytes.NewReader(oldBuf.Bytes())))
+			require.NoError(t, err)
+			require.Equal(t, tc.input, readBack2)
+		})
+	}
+}
+
+func TestItemCompat(t *testing.T) {
+	t.Parallel()
+
+	// Note: varbin.Write has a bug where struct values (not pointers) don't write their fields
+	// because field.CanSet() returns false for non-addressable values.
+	// The old geosite code passed Item values to varbin.Write, which silently wrote nothing.
+	// The new code correctly writes Type + Value using manual serialization.
+	// This test verifies the new serialization format and round-trip correctness.
+
+	cases := []struct {
+		name  string
+		input Item
+	}{
+		{"domain_empty", Item{Type: RuleTypeDomain, Value: ""}},
+		{"domain_normal", Item{Type: RuleTypeDomain, Value: "example.com"}},
+		{"domain_suffix", Item{Type: RuleTypeDomainSuffix, Value: ".example.com"}},
+		{"domain_keyword", Item{Type: RuleTypeDomainKeyword, Value: "google"}},
+		{"domain_regex", Item{Type: RuleTypeDomainRegex, Value: `^.*\.example\.com$`}},
+		{"utf8_domain", Item{Type: RuleTypeDomain, Value: "测试.com"}},
+		{"long_domain", Item{Type: RuleTypeDomainSuffix, Value: strings.Repeat("a", 200) + ".com"}},
+		{"128_bytes_value", Item{Type: RuleTypeDomain, Value: strings.Repeat("x", 128)}},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+
+			// New write
+			var newBuf bytes.Buffer
+			err := newBuf.WriteByte(byte(tc.input.Type))
+			require.NoError(t, err)
+			err = writeString(&newBuf, tc.input.Value)
+			require.NoError(t, err)
+
+			// Verify format: Type (1 byte) + Value (uvarint len + bytes)
+			require.True(t, len(newBuf.Bytes()) >= 1, "output too short")
+			require.Equal(t, byte(tc.input.Type), newBuf.Bytes()[0], "type byte mismatch")
+
+			// New write -> old read (varbin can read correctly when given addressable target)
+			readBack, err := oldReadItem(bufio.NewReader(bytes.NewReader(newBuf.Bytes())))
+			require.NoError(t, err)
+			require.Equal(t, tc.input, readBack)
+
+			// New write -> new read
+			reader := bufio.NewReader(bytes.NewReader(newBuf.Bytes()))
+			typeByte, err := reader.ReadByte()
+			require.NoError(t, err)
+			value, err := readString(reader)
+			require.NoError(t, err)
+			require.Equal(t, tc.input, Item{Type: ItemType(typeByte), Value: value})
+		})
+	}
+}
+
+func TestGeositeWriteReadCompat(t *testing.T) {
+	t.Parallel()
+
+	cases := []struct {
+		name  string
+		input map[string][]Item
+	}{
+		{
+			"empty_map",
+			map[string][]Item{},
+		},
+		{
+			"single_code_empty_items",
+			map[string][]Item{"test": {}},
+		},
+		{
+			"single_code_single_item",
+			map[string][]Item{"test": {{Type: RuleTypeDomain, Value: "a.com"}}},
+		},
+		{
+			"single_code_multi_items",
+			map[string][]Item{
+				"test": {
+					{Type: RuleTypeDomain, Value: "a.com"},
+					{Type: RuleTypeDomainSuffix, Value: ".b.com"},
+					{Type: RuleTypeDomainKeyword, Value: "keyword"},
+					{Type: RuleTypeDomainRegex, Value: `^.*$`},
+				},
+			},
+		},
+		{
+			"multi_code",
+			map[string][]Item{
+				"cn": {{Type: RuleTypeDomain, Value: "baidu.com"}, {Type: RuleTypeDomainSuffix, Value: ".cn"}},
+				"us": {{Type: RuleTypeDomain, Value: "google.com"}},
+				"jp": {{Type: RuleTypeDomainSuffix, Value: ".jp"}},
+			},
+		},
+		{
+			"utf8_values",
+			map[string][]Item{
+				"test": {
+					{Type: RuleTypeDomain, Value: "测试.中国"},
+					{Type: RuleTypeDomainSuffix, Value: ".テスト"},
+				},
+			},
+		},
+		{
+			"large_items",
+			generateLargeItems(1000),
+		},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+
+			// Write using new implementation
+			var buf bytes.Buffer
+			err := Write(&buf, tc.input)
+			require.NoError(t, err)
+
+			// Read back and verify
+			reader, codes, err := NewReader(bytes.NewReader(buf.Bytes()))
+			require.NoError(t, err)
+
+			// Verify all codes exist
+			codeSet := make(map[string]bool)
+			for _, code := range codes {
+				codeSet[code] = true
+			}
+			for code := range tc.input {
+				require.True(t, codeSet[code], "missing code: %s", code)
+			}
+
+			// Verify items match
+			for code, expectedItems := range tc.input {
+				items, err := reader.Read(code)
+				require.NoError(t, err)
+				require.Equal(t, expectedItems, items, "items mismatch for code: %s", code)
+			}
+		})
+	}
+}
+
+func generateLargeItems(count int) map[string][]Item {
+	items := make([]Item, count)
+	for i := 0; i < count; i++ {
+		items[i] = Item{
+			Type:  ItemType(i % 4),
+			Value: strings.Repeat("x", i%200) + ".com",
+		}
+	}
+	return map[string][]Item{"large": items}
+}

common/geosite/reader.go

@@ -9,7 +9,6 @@ import (
 	"sync/atomic"
 
 	E "github.com/sagernet/sing/common/exceptions"
-	"github.com/sagernet/sing/common/varbin"
 )
 
 type Reader struct {
@@ -78,7 +77,7 @@ func (r *Reader) readMetadata() error {
 			codeIndex  uint64
 			codeLength uint64
 		)
-		code, err = varbin.ReadValue[string](reader, binary.BigEndian)
+		code, err = readString(reader)
 		if err != nil {
 			return err
 		}
@@ -112,9 +111,16 @@ func (r *Reader) Read(code string) ([]Item, error) {
 	}
 	r.bufferedReader.Reset(r.reader)
 	itemList := make([]Item, r.domainLength[code])
-	err = varbin.Read(r.bufferedReader, binary.BigEndian, &itemList)
-	if err != nil {
-		return nil, err
+	for i := range itemList {
+		typeByte, err := r.bufferedReader.ReadByte()
+		if err != nil {
+			return nil, err
+		}
+		itemList[i].Type = ItemType(typeByte)
+		itemList[i].Value, err = readString(r.bufferedReader)
+		if err != nil {
+			return nil, err
+		}
 	}
 	return itemList, nil
 }
@@ -135,3 +141,18 @@ func (r *readCounter) Read(p []byte) (n int, err error) {
 	}
 	return
 }
+
+func readString(reader io.ByteReader) (string, error) {
+	length, err := binary.ReadUvarint(reader)
+	if err != nil {
+		return "", err
+	}
+	bytes := make([]byte, length)
+	for i := range bytes {
+		bytes[i], err = reader.ReadByte()
+		if err != nil {
+			return "", err
+		}
+	}
+	return string(bytes), nil
+}

common/geosite/writer.go

@@ -2,7 +2,6 @@ package geosite
 
 import (
 	"bytes"
-	"encoding/binary"
 	"sort"
 
 	"github.com/sagernet/sing/common/varbin"
@@ -20,7 +19,11 @@ func Write(writer varbin.Writer, domains map[string][]Item) error {
 	for _, code := range keys {
 		index[code] = content.Len()
 		for _, item := range domains[code] {
-			err := varbin.Write(content, binary.BigEndian, item)
+			err := content.WriteByte(byte(item.Type))
+			if err != nil {
+				return err
+			}
+			err = writeString(content, item.Value)
 			if err != nil {
 				return err
 			}
@@ -38,7 +41,7 @@ func Write(writer varbin.Writer, domains map[string][]Item) error {
 	}
 
 	for _, code := range keys {
-		err = varbin.Write(writer, binary.BigEndian, code)
+		err = writeString(writer, code)
 		if err != nil {
 			return err
 		}
@@ -59,3 +62,12 @@ func Write(writer varbin.Writer, domains map[string][]Item) error {
 
 	return nil
 }
+
+func writeString(writer varbin.Writer, value string) error {
+	_, err := varbin.WriteUvarint(writer, uint64(len(value)))
+	if err != nil {
+		return err
+	}
+	_, err = writer.Write([]byte(value))
+	return err
+}

common/ktls/ktls.go

@@ -0,0 +1,133 @@
+//go:build linux && go1.25 && badlinkname
+
+package ktls
+
+import (
+	"bytes"
+	"context"
+	"crypto/tls"
+	"errors"
+	"io"
+	"net"
+	"os"
+	"syscall"
+
+	"github.com/sagernet/sing-box/common/badtls"
+	E "github.com/sagernet/sing/common/exceptions"
+	"github.com/sagernet/sing/common/logger"
+	N "github.com/sagernet/sing/common/network"
+	aTLS "github.com/sagernet/sing/common/tls"
+
+	"golang.org/x/sys/unix"
+)
+
+type Conn struct {
+	aTLS.Conn
+	ctx             context.Context
+	logger          logger.ContextLogger
+	conn            net.Conn
+	rawConn         *badtls.RawConn
+	syscallConn     syscall.Conn
+	rawSyscallConn  syscall.RawConn
+	readWaitOptions N.ReadWaitOptions
+	kernelTx        bool
+	kernelRx        bool
+	pendingRxSplice bool
+}
+
+func NewConn(ctx context.Context, logger logger.ContextLogger, conn aTLS.Conn, txOffload, rxOffload bool) (aTLS.Conn, error) {
+	err := Load()
+	if err != nil {
+		return nil, err
+	}
+	syscallConn, isSyscallConn := N.CastReader[interface {
+		io.Reader
+		syscall.Conn
+	}](conn.NetConn())
+	if !isSyscallConn {
+		return nil, os.ErrInvalid
+	}
+	rawSyscallConn, err := syscallConn.SyscallConn()
+	if err != nil {
+		return nil, err
+	}
+	rawConn, err := badtls.NewRawConn(conn)
+	if err != nil {
+		return nil, err
+	}
+	if *rawConn.Vers != tls.VersionTLS13 {
+		return nil, os.ErrInvalid
+	}
+	for rawConn.RawInput.Len() > 0 {
+		err = rawConn.ReadRecord()
+		if err != nil {
+			return nil, err
+		}
+		for rawConn.Hand.Len() > 0 {
+			err = rawConn.HandlePostHandshakeMessage()
+			if err != nil {
+				return nil, E.Cause(err, "handle post-handshake messages")
+			}
+		}
+	}
+	kConn := &Conn{
+		Conn:           conn,
+		ctx:            ctx,
+		logger:         logger,
+		conn:           conn.NetConn(),
+		rawConn:        rawConn,
+		syscallConn:    syscallConn,
+		rawSyscallConn: rawSyscallConn,
+	}
+	err = kConn.setupKernel(txOffload, rxOffload)
+	if err != nil {
+		return nil, err
+	}
+	return kConn, nil
+}
+
+func (c *Conn) Upstream() any {
+	return c.Conn
+}
+
+func (c *Conn) SyscallConnForRead() syscall.RawConn {
+	if !c.kernelRx {
+		return nil
+	}
+	if !*c.rawConn.IsClient {
+		c.logger.WarnContext(c.ctx, "ktls: RX splice is unavailable on the server size, since it will cause an unknown failure")
+		return nil
+	}
+	c.logger.DebugContext(c.ctx, "ktls: RX splice requested")
+	return c.rawSyscallConn
+}
+
+func (c *Conn) HandleSyscallReadError(inputErr error) ([]byte, error) {
+	if errors.Is(inputErr, unix.EINVAL) {
+		c.pendingRxSplice = true
+		err := c.readRecord()
+		if err != nil {
+			return nil, E.Cause(err, "ktls: handle non-application-data record")
+		}
+		var input bytes.Buffer
+		if c.rawConn.Input.Len() > 0 {
+			_, err = c.rawConn.Input.WriteTo(&input)
+			if err != nil {
+				return nil, err
+			}
+		}
+		return input.Bytes(), nil
+	} else if errors.Is(inputErr, unix.EBADMSG) {
+		return nil, c.rawConn.In.SetErrorLocked(c.sendAlert(alertBadRecordMAC))
+	} else {
+		return nil, E.Cause(inputErr, "ktls: unexpected errno")
+	}
+}
+
+func (c *Conn) SyscallConnForWrite() syscall.RawConn {
+	if !c.kernelTx {
+		return nil
+	}
+	c.logger.DebugContext(c.ctx, "ktls: TX splice requested")
+	return c.rawSyscallConn
+}

common/ktls/ktls_alert.go

@@ -0,0 +1,80 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build linux && go1.25 && badlinkname
+
+package ktls
+
+import (
+	"crypto/tls"
+	"net"
+)
+
+const (
+	// alert level
+	alertLevelWarning = 1
+	alertLevelError   = 2
+)
+
+const (
+	alertCloseNotify                  = 0
+	alertUnexpectedMessage            = 10
+	alertBadRecordMAC                 = 20
+	alertDecryptionFailed             = 21
+	alertRecordOverflow               = 22
+	alertDecompressionFailure         = 30
+	alertHandshakeFailure             = 40
+	alertBadCertificate               = 42
+	alertUnsupportedCertificate       = 43
+	alertCertificateRevoked           = 44
+	alertCertificateExpired           = 45
+	alertCertificateUnknown           = 46
+	alertIllegalParameter             = 47
+	alertUnknownCA                    = 48
+	alertAccessDenied                 = 49
+	alertDecodeError                  = 50
+	alertDecryptError                 = 51
+	alertExportRestriction            = 60
+	alertProtocolVersion              = 70
+	alertInsufficientSecurity         = 71
+	alertInternalError                = 80
+	alertInappropriateFallback        = 86
+	alertUserCanceled                 = 90
+	alertNoRenegotiation              = 100
+	alertMissingExtension             = 109
+	alertUnsupportedExtension         = 110
+	alertCertificateUnobtainable      = 111
+	alertUnrecognizedName             = 112
+	alertBadCertificateStatusResponse = 113
+	alertBadCertificateHashValue      = 114
+	alertUnknownPSKIdentity           = 115
+	alertCertificateRequired          = 116
+	alertNoApplicationProtocol        = 120
+	alertECHRequired                  = 121
+)
+
+func (c *Conn) sendAlertLocked(err uint8) error {
+	switch err {
+	case alertNoRenegotiation, alertCloseNotify:
+		c.rawConn.Tmp[0] = alertLevelWarning
+	default:
+		c.rawConn.Tmp[0] = alertLevelError
+	}
+	c.rawConn.Tmp[1] = byte(err)
+
+	_, writeErr := c.writeRecordLocked(recordTypeAlert, c.rawConn.Tmp[0:2])
+	if err == alertCloseNotify {
+		// closeNotify is a special case in that it isn't an error.
+		return writeErr
+	}
+
+	return c.rawConn.Out.SetErrorLocked(&net.OpError{Op: "local error", Err: tls.AlertError(err)})
+}
+
+// sendAlert sends a TLS alert message.
+func (c *Conn) sendAlert(err uint8) error {
+	c.rawConn.Out.Lock()
+	defer c.rawConn.Out.Unlock()
+	return c.sendAlertLocked(err)
+}

common/ktls/ktls_cipher_suites_linux.go

@@ -0,0 +1,326 @@
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build linux && go1.25 && badlinkname
+
+package ktls
+
+import (
+	"crypto/tls"
+	"unsafe"
+
+	"github.com/sagernet/sing-box/common/badtls"
+)
+
+type kernelCryptoCipherType uint16
+
+const (
+	TLS_CIPHER_AES_GCM_128              kernelCryptoCipherType = 51
+	TLS_CIPHER_AES_GCM_128_IV_SIZE      kernelCryptoCipherType = 8
+	TLS_CIPHER_AES_GCM_128_KEY_SIZE     kernelCryptoCipherType = 16
+	TLS_CIPHER_AES_GCM_128_SALT_SIZE    kernelCryptoCipherType = 4
+	TLS_CIPHER_AES_GCM_128_TAG_SIZE     kernelCryptoCipherType = 16
+	TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE kernelCryptoCipherType = 8
+
+	TLS_CIPHER_AES_GCM_256              kernelCryptoCipherType = 52
+	TLS_CIPHER_AES_GCM_256_IV_SIZE      kernelCryptoCipherType = 8
+	TLS_CIPHER_AES_GCM_256_KEY_SIZE     kernelCryptoCipherType = 32
+	TLS_CIPHER_AES_GCM_256_SALT_SIZE    kernelCryptoCipherType = 4
+	TLS_CIPHER_AES_GCM_256_TAG_SIZE     kernelCryptoCipherType = 16
+	TLS_CIPHER_AES_GCM_256_REC_SEQ_SIZE kernelCryptoCipherType = 8
+
+	TLS_CIPHER_AES_CCM_128              kernelCryptoCipherType = 53
+	TLS_CIPHER_AES_CCM_128_IV_SIZE      kernelCryptoCipherType = 8
+	TLS_CIPHER_AES_CCM_128_KEY_SIZE     kernelCryptoCipherType = 16
+	TLS_CIPHER_AES_CCM_128_SALT_SIZE    kernelCryptoCipherType = 4
+	TLS_CIPHER_AES_CCM_128_TAG_SIZE     kernelCryptoCipherType = 16
+	TLS_CIPHER_AES_CCM_128_REC_SEQ_SIZE kernelCryptoCipherType = 8
+
+	TLS_CIPHER_CHACHA20_POLY1305              kernelCryptoCipherType = 54
+	TLS_CIPHER_CHACHA20_POLY1305_IV_SIZE      kernelCryptoCipherType = 12
+	TLS_CIPHER_CHACHA20_POLY1305_KEY_SIZE     kernelCryptoCipherType = 32
+	TLS_CIPHER_CHACHA20_POLY1305_SALT_SIZE    kernelCryptoCipherType = 0
+	TLS_CIPHER_CHACHA20_POLY1305_TAG_SIZE     kernelCryptoCipherType = 16
+	TLS_CIPHER_CHACHA20_POLY1305_REC_SEQ_SIZE kernelCryptoCipherType = 8
+
+	// TLS_CIPHER_SM4_GCM              kernelCryptoCipherType = 55
+	// TLS_CIPHER_SM4_GCM_IV_SIZE      kernelCryptoCipherType = 8
+	// TLS_CIPHER_SM4_GCM_KEY_SIZE     kernelCryptoCipherType = 16
+	// TLS_CIPHER_SM4_GCM_SALT_SIZE    kernelCryptoCipherType = 4
+	// TLS_CIPHER_SM4_GCM_TAG_SIZE     kernelCryptoCipherType = 16
+	// TLS_CIPHER_SM4_GCM_REC_SEQ_SIZE kernelCryptoCipherType = 8
+
+	// TLS_CIPHER_SM4_CCM              kernelCryptoCipherType = 56
+	// TLS_CIPHER_SM4_CCM_IV_SIZE      kernelCryptoCipherType = 8
+	// TLS_CIPHER_SM4_CCM_KEY_SIZE     kernelCryptoCipherType = 16
+	// TLS_CIPHER_SM4_CCM_SALT_SIZE    kernelCryptoCipherType = 4
+	// TLS_CIPHER_SM4_CCM_TAG_SIZE     kernelCryptoCipherType = 16
+	// TLS_CIPHER_SM4_CCM_REC_SEQ_SIZE kernelCryptoCipherType = 8
+
+	TLS_CIPHER_ARIA_GCM_128              kernelCryptoCipherType = 57
+	TLS_CIPHER_ARIA_GCM_128_IV_SIZE      kernelCryptoCipherType = 8
+	TLS_CIPHER_ARIA_GCM_128_KEY_SIZE     kernelCryptoCipherType = 16
+	TLS_CIPHER_ARIA_GCM_128_SALT_SIZE    kernelCryptoCipherType = 4
+	TLS_CIPHER_ARIA_GCM_128_TAG_SIZE     kernelCryptoCipherType = 16
+	TLS_CIPHER_ARIA_GCM_128_REC_SEQ_SIZE kernelCryptoCipherType = 8
+
+	TLS_CIPHER_ARIA_GCM_256              kernelCryptoCipherType = 58
+	TLS_CIPHER_ARIA_GCM_256_IV_SIZE      kernelCryptoCipherType = 8
+	TLS_CIPHER_ARIA_GCM_256_KEY_SIZE     kernelCryptoCipherType = 32
+	TLS_CIPHER_ARIA_GCM_256_SALT_SIZE    kernelCryptoCipherType = 4
+	TLS_CIPHER_ARIA_GCM_256_TAG_SIZE     kernelCryptoCipherType = 16
+	TLS_CIPHER_ARIA_GCM_256_REC_SEQ_SIZE kernelCryptoCipherType = 8
+)
+
+type kernelCrypto interface {
+	String() string
+}
+
+type kernelCryptoInfo struct {
+	version     uint16
+	cipher_type kernelCryptoCipherType
+}
+
+var _ kernelCrypto = &kernelCryptoAES128GCM{}
+
+type kernelCryptoAES128GCM struct {
+	kernelCryptoInfo
+	iv      [TLS_CIPHER_AES_GCM_128_IV_SIZE]byte
+	key     [TLS_CIPHER_AES_GCM_128_KEY_SIZE]byte
+	salt    [TLS_CIPHER_AES_GCM_128_SALT_SIZE]byte
+	rec_seq [TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE]byte
+}
+
+func (crypto *kernelCryptoAES128GCM) String() string {
+	crypto.cipher_type = TLS_CIPHER_AES_GCM_128
+	return string((*[unsafe.Sizeof(*crypto)]byte)(unsafe.Pointer(crypto))[:])
+}
+
+var _ kernelCrypto = &kernelCryptoAES256GCM{}
+
+type kernelCryptoAES256GCM struct {
+	kernelCryptoInfo
+	iv      [TLS_CIPHER_AES_GCM_256_IV_SIZE]byte
+	key     [TLS_CIPHER_AES_GCM_256_KEY_SIZE]byte
+	salt    [TLS_CIPHER_AES_GCM_256_SALT_SIZE]byte
+	rec_seq [TLS_CIPHER_AES_GCM_256_REC_SEQ_SIZE]byte
+}
+
+func (crypto *kernelCryptoAES256GCM) String() string {
+	crypto.cipher_type = TLS_CIPHER_AES_GCM_256
+	return string((*[unsafe.Sizeof(*crypto)]byte)(unsafe.Pointer(crypto))[:])
+}
+
+var _ kernelCrypto = &kernelCryptoAES128CCM{}
+
+type kernelCryptoAES128CCM struct {
+	kernelCryptoInfo
+	iv      [TLS_CIPHER_AES_CCM_128_IV_SIZE]byte
+	key     [TLS_CIPHER_AES_CCM_128_KEY_SIZE]byte
+	salt    [TLS_CIPHER_AES_CCM_128_SALT_SIZE]byte
+	rec_seq [TLS_CIPHER_AES_CCM_128_REC_SEQ_SIZE]byte
+}
+
+func (crypto *kernelCryptoAES128CCM) String() string {
+	crypto.cipher_type = TLS_CIPHER_AES_CCM_128
+	return string((*[unsafe.Sizeof(*crypto)]byte)(unsafe.Pointer(crypto))[:])
+}
+
+var _ kernelCrypto = &kernelCryptoChacha20Poly1035{}
+
+type kernelCryptoChacha20Poly1035 struct {
+	kernelCryptoInfo
+	iv      [TLS_CIPHER_CHACHA20_POLY1305_IV_SIZE]byte
+	key     [TLS_CIPHER_CHACHA20_POLY1305_KEY_SIZE]byte
+	salt    [TLS_CIPHER_CHACHA20_POLY1305_SALT_SIZE]byte
+	rec_seq [TLS_CIPHER_CHACHA20_POLY1305_REC_SEQ_SIZE]byte
+}
+
+func (crypto *kernelCryptoChacha20Poly1035) String() string {
+	crypto.cipher_type = TLS_CIPHER_CHACHA20_POLY1305
+	return string((*[unsafe.Sizeof(*crypto)]byte)(unsafe.Pointer(crypto))[:])
+}
+
+// var _ kernelCrypto = &kernelCryptoSM4GCM{}
+
+// type kernelCryptoSM4GCM struct {
+// 	kernelCryptoInfo
+// 	iv      [TLS_CIPHER_SM4_GCM_IV_SIZE]byte
+// 	key     [TLS_CIPHER_SM4_GCM_KEY_SIZE]byte
+// 	salt    [TLS_CIPHER_SM4_GCM_SALT_SIZE]byte
+// 	rec_seq [TLS_CIPHER_SM4_GCM_REC_SEQ_SIZE]byte
+// }
+
+// func (crypto *kernelCryptoSM4GCM) String() string {
+// 	crypto.cipher_type = TLS_CIPHER_SM4_GCM
+// 	return string((*[unsafe.Sizeof(*crypto)]byte)(unsafe.Pointer(crypto))[:])
+// }
+
+// var _ kernelCrypto = &kernelCryptoSM4CCM{}
+
+// type kernelCryptoSM4CCM struct {
+// 	kernelCryptoInfo
+// 	iv      [TLS_CIPHER_SM4_CCM_IV_SIZE]byte
+// 	key     [TLS_CIPHER_SM4_CCM_KEY_SIZE]byte
+// 	salt    [TLS_CIPHER_SM4_CCM_SALT_SIZE]byte
+// 	rec_seq [TLS_CIPHER_SM4_CCM_REC_SEQ_SIZE]byte
+// }
+
+// func (crypto *kernelCryptoSM4CCM) String() string {
+// 	crypto.cipher_type = TLS_CIPHER_SM4_CCM
+// 	return string((*[unsafe.Sizeof(*crypto)]byte)(unsafe.Pointer(crypto))[:])
+// }
+
+var _ kernelCrypto = &kernelCryptoARIA128GCM{}
+
+type kernelCryptoARIA128GCM struct {
+	kernelCryptoInfo
+	iv      [TLS_CIPHER_ARIA_GCM_128_IV_SIZE]byte
+	key     [TLS_CIPHER_ARIA_GCM_128_KEY_SIZE]byte
+	salt    [TLS_CIPHER_ARIA_GCM_128_SALT_SIZE]byte
+	rec_seq [TLS_CIPHER_ARIA_GCM_128_REC_SEQ_SIZE]byte
+}
+
+func (crypto *kernelCryptoARIA128GCM) String() string {
+	crypto.cipher_type = TLS_CIPHER_ARIA_GCM_128
+	return string((*[unsafe.Sizeof(*crypto)]byte)(unsafe.Pointer(crypto))[:])
+}
+
+var _ kernelCrypto = &kernelCryptoARIA256GCM{}
+
+type kernelCryptoARIA256GCM struct {
+	kernelCryptoInfo
+	iv      [TLS_CIPHER_ARIA_GCM_256_IV_SIZE]byte
+	key     [TLS_CIPHER_ARIA_GCM_256_KEY_SIZE]byte
+	salt    [TLS_CIPHER_ARIA_GCM_256_SALT_SIZE]byte
+	rec_seq [TLS_CIPHER_ARIA_GCM_256_REC_SEQ_SIZE]byte
+}
+
+func (crypto *kernelCryptoARIA256GCM) String() string {
+	crypto.cipher_type = TLS_CIPHER_ARIA_GCM_256
+	return string((*[unsafe.Sizeof(*crypto)]byte)(unsafe.Pointer(crypto))[:])
+}
+
+func kernelCipher(kernel *Support, hc *badtls.RawHalfConn, cipherSuite uint16, isRX bool) kernelCrypto {
+	if !kernel.TLS {
+		return nil
+	}
+
+	switch *hc.Version {
+	case tls.VersionTLS12:
+		if isRX && !kernel.TLS_Version13_RX {
+			return nil
+		}
+
+	case tls.VersionTLS13:
+		if !kernel.TLS_Version13 {
+			return nil
+		}
+
+		if isRX && !kernel.TLS_Version13_RX {
+			return nil
+		}
+
+	default:
+		return nil
+	}
+
+	var key, iv []byte
+	if *hc.Version == tls.VersionTLS13 {
+		key, iv = trafficKey(cipherSuiteTLS13ByID(cipherSuite), *hc.TrafficSecret)
+		/*if isRX {
+			key, iv = trafficKey(cipherSuiteTLS13ByID(cipherSuite), keyLog.RemoteTrafficSecret)
+		} else {
+			key, iv = trafficKey(cipherSuiteTLS13ByID(cipherSuite), keyLog.TrafficSecret)
+		}*/
+	} else {
+		// csPtr := cipherSuiteByID(cipherSuite)
+		// keysFromMasterSecret(*hc.Version, csPtr, keyLog.Secret, keyLog.Random)
+		return nil
+	}
+
+	switch cipherSuite {
+	case tls.TLS_AES_128_GCM_SHA256, tls.TLS_RSA_WITH_AES_128_GCM_SHA256, tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256:
+		crypto := new(kernelCryptoAES128GCM)
+
+		crypto.version = *hc.Version
+		copy(crypto.key[:], key)
+		copy(crypto.iv[:], iv[4:])
+		copy(crypto.salt[:], iv[:4])
+		crypto.rec_seq = *hc.Seq
+
+		return crypto
+	case tls.TLS_AES_256_GCM_SHA384, tls.TLS_RSA_WITH_AES_256_GCM_SHA384, tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384:
+		if !kernel.TLS_AES_256_GCM {
+			return nil
+		}
+
+		crypto := new(kernelCryptoAES256GCM)
+
+		crypto.version = *hc.Version
+		copy(crypto.key[:], key)
+		copy(crypto.iv[:], iv[4:])
+		copy(crypto.salt[:], iv[:4])
+		crypto.rec_seq = *hc.Seq
+
+		return crypto
+	//case tls.TLS_AES_128_CCM_SHA256, tls.TLS_RSA_WITH_AES_128_CCM_SHA256, tls.TLS_ECDHE_ECDSA_WITH_AES_128_CCM_SHA256:
+	//	if !kernel.TLS_AES_128_CCM {
+	//		return nil
+	//	}
+	//
+	//	crypto := new(kernelCryptoAES128CCM)
+	//
+	//	crypto.version = *hc.Version
+	//	copy(crypto.key[:], key)
+	//	copy(crypto.iv[:], iv[4:])
+	//	copy(crypto.salt[:], iv[:4])
+	//	crypto.rec_seq = *hc.Seq
+	//
+	//	return crypto
+	case tls.TLS_CHACHA20_POLY1305_SHA256, tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256, tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256:
+		if !kernel.TLS_CHACHA20_POLY1305 {
+			return nil
+		}
+
+		crypto := new(kernelCryptoChacha20Poly1035)
+
+		crypto.version = *hc.Version
+		copy(crypto.key[:], key)
+		copy(crypto.iv[:], iv)
+		crypto.rec_seq = *hc.Seq
+
+		return crypto
+	//case tls.TLS_RSA_WITH_ARIA_128_GCM_SHA256, tls.TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256, tls.TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256:
+	//	if !kernel.TLS_ARIA_GCM {
+	//		return nil
+	//	}
+	//
+	//	crypto := new(kernelCryptoARIA128GCM)
+	//
+	//	crypto.version = *hc.Version
+	//	copy(crypto.key[:], key)
+	//	copy(crypto.iv[:], iv[4:])
+	//	copy(crypto.salt[:], iv[:4])
+	//	crypto.rec_seq = *hc.Seq
+	//
+	//	return crypto
+	//case tls.TLS_RSA_WITH_ARIA_256_GCM_SHA384, tls.TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384, tls.TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384:
+	//	if !kernel.TLS_ARIA_GCM {
+	//		return nil
+	//	}
+	//
+	//	crypto := new(kernelCryptoARIA256GCM)
+	//
+	//	crypto.version = *hc.Version
+	//	copy(crypto.key[:], key)
+	//	copy(crypto.iv[:], iv[4:])
+	//	copy(crypto.salt[:], iv[:4])
+	//	crypto.rec_seq = *hc.Seq
+	//
+	//	return crypto
+	default:
+		return nil
+	}
+}

common/ktls/ktls_close.go

@@ -0,0 +1,67 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build linux && go1.25 && badlinkname
+
+package ktls
+
+import (
+	"fmt"
+	"net"
+	"time"
+)
+
+func (c *Conn) Close() error {
+	if !c.kernelTx {
+		return c.Conn.Close()
+	}
+
+	// Interlock with Conn.Write above.
+	var x int32
+	for {
+		x = c.rawConn.ActiveCall.Load()
+		if x&1 != 0 {
+			return net.ErrClosed
+		}
+		if c.rawConn.ActiveCall.CompareAndSwap(x, x|1) {
+			break
+		}
+	}
+	if x != 0 {
+		// io.Writer and io.Closer should not be used concurrently.
+		// If Close is called while a Write is currently in-flight,
+		// interpret that as a sign that this Close is really just
+		// being used to break the Write and/or clean up resources and
+		// avoid sending the alertCloseNotify, which may block
+		// waiting on handshakeMutex or the c.out mutex.
+		return c.conn.Close()
+	}
+
+	var alertErr error
+	if c.rawConn.IsHandshakeComplete.Load() {
+		if err := c.closeNotify(); err != nil {
+			alertErr = fmt.Errorf("tls: failed to send closeNotify alert (but connection was closed anyway): %w", err)
+		}
+	}
+
+	if err := c.conn.Close(); err != nil {
+		return err
+	}
+	return alertErr
+}
+
+func (c *Conn) closeNotify() error {
+	c.rawConn.Out.Lock()
+	defer c.rawConn.Out.Unlock()
+
+	if !*c.rawConn.CloseNotifySent {
+		// Set a Write Deadline to prevent possibly blocking forever.
+		c.SetWriteDeadline(time.Now().Add(time.Second * 5))
+		*c.rawConn.CloseNotifyErr = c.sendAlertLocked(alertCloseNotify)
+		*c.rawConn.CloseNotifySent = true
+		// Any subsequent writes will fail.
+		c.SetWriteDeadline(time.Now())
+	}
+	return *c.rawConn.CloseNotifyErr
+}

common/ktls/ktls_const.go

@@ -0,0 +1,24 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build linux && go1.25 && badlinkname
+
+package ktls
+
+const (
+	maxPlaintext               = 16384        // maximum plaintext payload length
+	maxCiphertext              = 16384 + 2048 // maximum ciphertext payload length
+	maxCiphertextTLS13         = 16384 + 256  // maximum ciphertext length in TLS 1.3
+	recordHeaderLen            = 5            // record header length
+	maxHandshake               = 65536        // maximum handshake we support (protocol max is 16 MB)
+	maxHandshakeCertificateMsg = 262144       // maximum certificate message size (256 KiB)
+	maxUselessRecords          = 16           // maximum number of consecutive non-advancing records
+)
+
+const (
+	recordTypeChangeCipherSpec = 20
+	recordTypeAlert            = 21
+	recordTypeHandshake        = 22
+	recordTypeApplicationData  = 23
+)

common/ktls/ktls_handshake_messages.go

@@ -0,0 +1,238 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build linux && go1.25 && badlinkname
+
+package ktls
+
+import (
+	"fmt"
+
+	"golang.org/x/crypto/cryptobyte"
+)
+
+// The marshalingFunction type is an adapter to allow the use of ordinary
+// functions as cryptobyte.MarshalingValue.
+type marshalingFunction func(b *cryptobyte.Builder) error
+
+func (f marshalingFunction) Marshal(b *cryptobyte.Builder) error {
+	return f(b)
+}
+
+// addBytesWithLength appends a sequence of bytes to the cryptobyte.Builder. If
+// the length of the sequence is not the value specified, it produces an error.
+func addBytesWithLength(b *cryptobyte.Builder, v []byte, n int) {
+	b.AddValue(marshalingFunction(func(b *cryptobyte.Builder) error {
+		if len(v) != n {
+			return fmt.Errorf("invalid value length: expected %d, got %d", n, len(v))
+		}
+		b.AddBytes(v)
+		return nil
+	}))
+}
+
+// addUint64 appends a big-endian, 64-bit value to the cryptobyte.Builder.
+func addUint64(b *cryptobyte.Builder, v uint64) {
+	b.AddUint32(uint32(v >> 32))
+	b.AddUint32(uint32(v))
+}
+
+// readUint64 decodes a big-endian, 64-bit value into out and advances over it.
+// It reports whether the read was successful.
+func readUint64(s *cryptobyte.String, out *uint64) bool {
+	var hi, lo uint32
+	if !s.ReadUint32(&hi) || !s.ReadUint32(&lo) {
+		return false
+	}
+	*out = uint64(hi)<<32 | uint64(lo)
+	return true
+}
+
+// readUint8LengthPrefixed acts like s.ReadUint8LengthPrefixed, but targets a
+// []byte instead of a cryptobyte.String.
+func readUint8LengthPrefixed(s *cryptobyte.String, out *[]byte) bool {
+	return s.ReadUint8LengthPrefixed((*cryptobyte.String)(out))
+}
+
+// readUint16LengthPrefixed acts like s.ReadUint16LengthPrefixed, but targets a
+// []byte instead of a cryptobyte.String.
+func readUint16LengthPrefixed(s *cryptobyte.String, out *[]byte) bool {
+	return s.ReadUint16LengthPrefixed((*cryptobyte.String)(out))
+}
+
+// readUint24LengthPrefixed acts like s.ReadUint24LengthPrefixed, but targets a
+// []byte instead of a cryptobyte.String.
+func readUint24LengthPrefixed(s *cryptobyte.String, out *[]byte) bool {
+	return s.ReadUint24LengthPrefixed((*cryptobyte.String)(out))
+}
+
+type keyUpdateMsg struct {
+	updateRequested bool
+}
+
+func (m *keyUpdateMsg) marshal() ([]byte, error) {
+	var b cryptobyte.Builder
+	b.AddUint8(typeKeyUpdate)
+	b.AddUint24LengthPrefixed(func(b *cryptobyte.Builder) {
+		if m.updateRequested {
+			b.AddUint8(1)
+		} else {
+			b.AddUint8(0)
+		}
+	})
+
+	return b.Bytes()
+}
+
+func (m *keyUpdateMsg) unmarshal(data []byte) bool {
+	s := cryptobyte.String(data)
+
+	var updateRequested uint8
+	if !s.Skip(4) || // message type and uint24 length field
+		!s.ReadUint8(&updateRequested) || !s.Empty() {
+		return false
+	}
+	switch updateRequested {
+	case 0:
+		m.updateRequested = false
+	case 1:
+		m.updateRequested = true
+	default:
+		return false
+	}
+	return true
+}
+
+// TLS handshake message types.
+const (
+	typeHelloRequest          uint8 = 0
+	typeClientHello           uint8 = 1
+	typeServerHello           uint8 = 2
+	typeNewSessionTicket      uint8 = 4
+	typeEndOfEarlyData        uint8 = 5
+	typeEncryptedExtensions   uint8 = 8
+	typeCertificate           uint8 = 11
+	typeServerKeyExchange     uint8 = 12
+	typeCertificateRequest    uint8 = 13
+	typeServerHelloDone       uint8 = 14
+	typeCertificateVerify     uint8 = 15
+	typeClientKeyExchange     uint8 = 16
+	typeFinished              uint8 = 20
+	typeCertificateStatus     uint8 = 22
+	typeKeyUpdate             uint8 = 24
+	typeCompressedCertificate uint8 = 25
+	typeMessageHash           uint8 = 254 // synthetic message
+)
+
+// TLS compression types.
+const (
+	compressionNone uint8 = 0
+)
+
+// TLS extension numbers
+const (
+	extensionServerName              uint16 = 0
+	extensionStatusRequest           uint16 = 5
+	extensionSupportedCurves         uint16 = 10 // supported_groups in TLS 1.3, see RFC 8446, Section 4.2.7
+	extensionSupportedPoints         uint16 = 11
+	extensionSignatureAlgorithms     uint16 = 13
+	extensionALPN                    uint16 = 16
+	extensionSCT                     uint16 = 18
+	extensionPadding                 uint16 = 21
+	extensionExtendedMasterSecret    uint16 = 23
+	extensionCompressCertificate     uint16 = 27 // compress_certificate in TLS 1.3
+	extensionSessionTicket           uint16 = 35
+	extensionPreSharedKey            uint16 = 41
+	extensionEarlyData               uint16 = 42
+	extensionSupportedVersions       uint16 = 43
+	extensionCookie                  uint16 = 44
+	extensionPSKModes                uint16 = 45
+	extensionCertificateAuthorities  uint16 = 47
+	extensionSignatureAlgorithmsCert uint16 = 50
+	extensionKeyShare                uint16 = 51
+	extensionQUICTransportParameters uint16 = 57
+	extensionALPS                    uint16 = 17513
+	extensionRenegotiationInfo       uint16 = 0xff01
+	extensionECHOuterExtensions      uint16 = 0xfd00
+	extensionEncryptedClientHello    uint16 = 0xfe0d
+)
+
+type handshakeMessage interface {
+	marshal() ([]byte, error)
+	unmarshal([]byte) bool
+}
+type newSessionTicketMsgTLS13 struct {
+	lifetime     uint32
+	ageAdd       uint32
+	nonce        []byte
+	label        []byte
+	maxEarlyData uint32
+}
+
+func (m *newSessionTicketMsgTLS13) marshal() ([]byte, error) {
+	var b cryptobyte.Builder
+	b.AddUint8(typeNewSessionTicket)
+	b.AddUint24LengthPrefixed(func(b *cryptobyte.Builder) {
+		b.AddUint32(m.lifetime)
+		b.AddUint32(m.ageAdd)
+		b.AddUint8LengthPrefixed(func(b *cryptobyte.Builder) {
+			b.AddBytes(m.nonce)
+		})
+		b.AddUint16LengthPrefixed(func(b *cryptobyte.Builder) {
+			b.AddBytes(m.label)
+		})
+
+		b.AddUint16LengthPrefixed(func(b *cryptobyte.Builder) {
+			if m.maxEarlyData > 0 {
+				b.AddUint16(extensionEarlyData)
+				b.AddUint16LengthPrefixed(func(b *cryptobyte.Builder) {
+					b.AddUint32(m.maxEarlyData)
+				})
+			}
+		})
+	})
+
+	return b.Bytes()
+}
+
+func (m *newSessionTicketMsgTLS13) unmarshal(data []byte) bool {
+	*m = newSessionTicketMsgTLS13{}
+	s := cryptobyte.String(data)
+
+	var extensions cryptobyte.String
+	if !s.Skip(4) || // message type and uint24 length field
+		!s.ReadUint32(&m.lifetime) ||
+		!s.ReadUint32(&m.ageAdd) ||
+		!readUint8LengthPrefixed(&s, &m.nonce) ||
+		!readUint16LengthPrefixed(&s, &m.label) ||
+		!s.ReadUint16LengthPrefixed(&extensions) ||
+		!s.Empty() {
+		return false
+	}
+
+	for !extensions.Empty() {
+		var extension uint16
+		var extData cryptobyte.String
+		if !extensions.ReadUint16(&extension) ||
+			!extensions.ReadUint16LengthPrefixed(&extData) {
+			return false
+		}
+
+		switch extension {
+		case extensionEarlyData:
+			if !extData.ReadUint32(&m.maxEarlyData) {
+				return false
+			}
+		default:
+			// Ignore unknown extensions.
+			continue
+		}
+
+		if !extData.Empty() {
+			return false
+		}
+	}
+
+	return true
+}

common/ktls/ktls_key_update.go

@@ -0,0 +1,173 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build linux && go1.25 && badlinkname
+
+package ktls
+
+import (
+	"crypto/tls"
+	"errors"
+	"fmt"
+	"io"
+	"os"
+)
+
+// handlePostHandshakeMessage processes a handshake message arrived after the
+// handshake is complete. Up to TLS 1.2, it indicates the start of a renegotiation.
+func (c *Conn) handlePostHandshakeMessage() error {
+	if *c.rawConn.Vers != tls.VersionTLS13 {
+		return errors.New("ktls: kernel does not support TLS 1.2 renegotiation")
+	}
+
+	msg, err := c.readHandshake(nil)
+	if err != nil {
+		return err
+	}
+	//c.retryCount++
+	//if c.retryCount > maxUselessRecords {
+	//	c.sendAlert(alertUnexpectedMessage)
+	//	return c.in.setErrorLocked(errors.New("tls: too many non-advancing records"))
+	//}
+
+	switch msg := msg.(type) {
+	case *newSessionTicketMsgTLS13:
+		// return errors.New("ktls: received new session ticket")
+		return nil
+	case *keyUpdateMsg:
+		return c.handleKeyUpdate(msg)
+	}
+	// The QUIC layer is supposed to treat an unexpected post-handshake CertificateRequest
+	// as a QUIC-level PROTOCOL_VIOLATION error (RFC 9001, Section 4.4). Returning an
+	// unexpected_message alert here doesn't provide it with enough information to distinguish
+	// this condition from other unexpected messages. This is probably fine.
+	c.sendAlert(alertUnexpectedMessage)
+	return fmt.Errorf("tls: received unexpected handshake message of type %T", msg)
+}
+
+func (c *Conn) handleKeyUpdate(keyUpdate *keyUpdateMsg) error {
+	//if c.quic != nil {
+	//	c.sendAlert(alertUnexpectedMessage)
+	//	return c.in.setErrorLocked(errors.New("tls: received unexpected key update message"))
+	//}
+
+	cipherSuite := cipherSuiteTLS13ByID(*c.rawConn.CipherSuite)
+	if cipherSuite == nil {
+		return c.rawConn.In.SetErrorLocked(c.sendAlert(alertInternalError))
+	}
+
+	newSecret := nextTrafficSecret(cipherSuite, *c.rawConn.In.TrafficSecret)
+	c.rawConn.In.SetTrafficSecret(cipherSuite, 0 /*tls.QUICEncryptionLevelInitial*/, newSecret)
+
+	err := c.resetupRX()
+	if err != nil {
+		c.sendAlert(alertInternalError)
+		return c.rawConn.In.SetErrorLocked(fmt.Errorf("ktls: resetupRX failed: %w", err))
+	}
+
+	if keyUpdate.updateRequested {
+		c.rawConn.Out.Lock()
+		defer c.rawConn.Out.Unlock()
+
+		resetup, err := c.resetupTX()
+		if err != nil {
+			c.sendAlertLocked(alertInternalError)
+			return c.rawConn.Out.SetErrorLocked(fmt.Errorf("ktls: resetupTX failed: %w", err))
+		}
+
+		msg := &keyUpdateMsg{}
+		msgBytes, err := msg.marshal()
+		if err != nil {
+			return err
+		}
+		_, err = c.writeRecordLocked(recordTypeHandshake, msgBytes)
+		if err != nil {
+			// Surface the error at the next write.
+			c.rawConn.Out.SetErrorLocked(err)
+			return nil
+		}
+
+		newSecret := nextTrafficSecret(cipherSuite, *c.rawConn.Out.TrafficSecret)
+		c.rawConn.Out.SetTrafficSecret(cipherSuite, 0 /*QUICEncryptionLevelInitial*/, newSecret)
+
+		err = resetup()
+		if err != nil {
+			return c.rawConn.Out.SetErrorLocked(fmt.Errorf("ktls: resetupTX failed: %w", err))
+		}
+	}
+
+	return nil
+}
+
+func (c *Conn) readHandshakeBytes(n int) error {
+	//if c.quic != nil {
+	//	return c.quicReadHandshakeBytes(n)
+	//}
+	for c.rawConn.Hand.Len() < n {
+		if err := c.readRecord(); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (c *Conn) readHandshake(transcript io.Writer) (any, error) {
+	if err := c.readHandshakeBytes(4); err != nil {
+		return nil, err
+	}
+	data := c.rawConn.Hand.Bytes()
+
+	maxHandshakeSize := maxHandshake
+	// hasVers indicates we're past the first message, forcing someone trying to
+	// make us just allocate a large buffer to at least do the initial part of
+	// the handshake first.
+	//if c.haveVers && data[0] == typeCertificate {
+	// Since certificate messages are likely to be the only messages that
+	// can be larger than maxHandshake, we use a special limit for just
+	// those messages.
+	//maxHandshakeSize = maxHandshakeCertificateMsg
+	//}
+
+	n := int(data[1])<<16 | int(data[2])<<8 | int(data[3])
+	if n > maxHandshakeSize {
+		c.sendAlertLocked(alertInternalError)
+		return nil, c.rawConn.In.SetErrorLocked(fmt.Errorf("tls: handshake message of length %d bytes exceeds maximum of %d bytes", n, maxHandshakeSize))
+	}
+	if err := c.readHandshakeBytes(4 + n); err != nil {
+		return nil, err
+	}
+	data = c.rawConn.Hand.Next(4 + n)
+	return c.unmarshalHandshakeMessage(data, transcript)
+}
+
+func (c *Conn) unmarshalHandshakeMessage(data []byte, transcript io.Writer) (any, error) {
+	var m handshakeMessage
+	switch data[0] {
+	case typeNewSessionTicket:
+		if *c.rawConn.Vers == tls.VersionTLS13 {
+			m = new(newSessionTicketMsgTLS13)
+		} else {
+			return nil, os.ErrInvalid
+		}
+	case typeKeyUpdate:
+		m = new(keyUpdateMsg)
+	default:
+		return nil, c.rawConn.In.SetErrorLocked(c.sendAlert(alertUnexpectedMessage))
+	}
+
+	// The handshake message unmarshalers
+	// expect to be able to keep references to data,
+	// so pass in a fresh copy that won't be overwritten.
+	data = append([]byte(nil), data...)
+
+	if !m.unmarshal(data) {
+		return nil, c.rawConn.In.SetErrorLocked(c.sendAlert(alertDecodeError))
+	}
+
+	if transcript != nil {
+		transcript.Write(data)
+	}
+
+	return m, nil
+}

common/ktls/ktls_linux.go

@@ -0,0 +1,329 @@
+//go:build linux && go1.25 && badlinkname
+
+package ktls
+
+import (
+	"crypto/tls"
+	"errors"
+	"io"
+	"os"
+	"strings"
+	"sync"
+	"syscall"
+	"unsafe"
+
+	"github.com/sagernet/sing-box/common/badversion"
+	"github.com/sagernet/sing/common/control"
+	E "github.com/sagernet/sing/common/exceptions"
+	"github.com/sagernet/sing/common/shell"
+
+	"golang.org/x/sys/unix"
+)
+
+// mod from https://gitlab.com/go-extension/tls
+
+const (
+	TLS_TX               = 1
+	TLS_RX               = 2
+	TLS_TX_ZEROCOPY_RO   = 3 // TX zerocopy (only sendfile now)
+	TLS_RX_EXPECT_NO_PAD = 4 // Attempt opportunistic zero-copy, TLS 1.3 only
+
+	TLS_SET_RECORD_TYPE = 1
+	TLS_GET_RECORD_TYPE = 2
+)
+
+type Support struct {
+	TLS, TLS_RX                     bool
+	TLS_Version13, TLS_Version13_RX bool
+
+	TLS_TX_ZEROCOPY  bool
+	TLS_RX_NOPADDING bool
+
+	TLS_AES_256_GCM       bool
+	TLS_AES_128_CCM       bool
+	TLS_CHACHA20_POLY1305 bool
+	TLS_SM4               bool
+	TLS_ARIA_GCM          bool
+
+	TLS_Version13_KeyUpdate bool
+}
+
+var KernelSupport = sync.OnceValues(func() (*Support, error) {
+	var uname unix.Utsname
+	err := unix.Uname(&uname)
+	if err != nil {
+		return nil, err
+	}
+
+	kernelVersion := badversion.Parse(strings.Trim(string(uname.Release[:]), "\x00"))
+	if err != nil {
+		return nil, err
+	}
+	var support Support
+	switch {
+	case kernelVersion.GreaterThanOrEqual(badversion.Version{Major: 6, Minor: 14}):
+		support.TLS_Version13_KeyUpdate = true
+		fallthrough
+	case kernelVersion.GreaterThanOrEqual(badversion.Version{Major: 6, Minor: 1}):
+		support.TLS_ARIA_GCM = true
+		fallthrough
+	case kernelVersion.GreaterThanOrEqual(badversion.Version{Major: 6}):
+		support.TLS_Version13_RX = true
+		support.TLS_RX_NOPADDING = true
+		fallthrough
+	case kernelVersion.GreaterThanOrEqual(badversion.Version{Major: 5, Minor: 19}):
+		support.TLS_TX_ZEROCOPY = true
+		fallthrough
+	case kernelVersion.GreaterThanOrEqual(badversion.Version{Major: 5, Minor: 16}):
+		support.TLS_SM4 = true
+		fallthrough
+	case kernelVersion.GreaterThanOrEqual(badversion.Version{Major: 5, Minor: 11}):
+		support.TLS_CHACHA20_POLY1305 = true
+		fallthrough
+	case kernelVersion.GreaterThanOrEqual(badversion.Version{Major: 5, Minor: 2}):
+		support.TLS_AES_128_CCM = true
+		fallthrough
+	case kernelVersion.GreaterThanOrEqual(badversion.Version{Major: 5, Minor: 1}):
+		support.TLS_AES_256_GCM = true
+		support.TLS_Version13 = true
+		fallthrough
+	case kernelVersion.GreaterThanOrEqual(badversion.Version{Major: 4, Minor: 17}):
+		support.TLS_RX = true
+		fallthrough
+	case kernelVersion.GreaterThanOrEqual(badversion.Version{Major: 4, Minor: 13}):
+		support.TLS = true
+	}
+
+	if support.TLS && support.TLS_Version13 {
+		_, err := os.Stat("/sys/module/tls")
+		if err != nil {
+			if os.Getuid() == 0 {
+				output, err := shell.Exec("modprobe", "tls").Read()
+				if err != nil {
+					return nil, E.Extend(E.Cause(err, "modprobe tls"), output)
+				}
+			} else {
+				return nil, E.New("ktls: kernel TLS module not loaded")
+			}
+		}
+	}
+
+	return &support, nil
+})
+
+func Load() error {
+	support, err := KernelSupport()
+	if err != nil {
+		return E.Cause(err, "ktls: check availability")
+	}
+	if !support.TLS || !support.TLS_Version13 {
+		return E.New("ktls: kernel does not support TLS 1.3")
+	}
+	return nil
+}
+
+func (c *Conn) setupKernel(txOffload, rxOffload bool) error {
+	if !txOffload && !rxOffload {
+		return os.ErrInvalid
+	}
+	support, err := KernelSupport()
+	if err != nil {
+		return E.Cause(err, "check availability")
+	}
+	if !support.TLS || !support.TLS_Version13 {
+		return E.New("kernel does not support TLS 1.3")
+	}
+	c.rawConn.Out.Lock()
+	defer c.rawConn.Out.Unlock()
+	err = control.Raw(c.rawSyscallConn, func(fd uintptr) error {
+		return syscall.SetsockoptString(int(fd), unix.SOL_TCP, unix.TCP_ULP, "tls")
+	})
+	if err != nil {
+		return os.NewSyscallError("setsockopt", err)
+	}
+
+	if txOffload {
+		txCrypto := kernelCipher(support, c.rawConn.Out, *c.rawConn.CipherSuite, false)
+		if txCrypto == nil {
+			return E.New("unsupported cipher suite")
+		}
+		err = control.Raw(c.rawSyscallConn, func(fd uintptr) error {
+			return syscall.SetsockoptString(int(fd), unix.SOL_TLS, TLS_TX, txCrypto.String())
+		})
+		if err != nil {
+			return err
+		}
+		if support.TLS_TX_ZEROCOPY {
+			err = control.Raw(c.rawSyscallConn, func(fd uintptr) error {
+				return syscall.SetsockoptInt(int(fd), unix.SOL_TLS, TLS_TX_ZEROCOPY_RO, 1)
+			})
+			if err != nil {
+				return err
+			}
+		}
+		c.kernelTx = true
+		c.logger.DebugContext(c.ctx, "ktls: kernel TLS TX enabled")
+	}
+
+	if rxOffload {
+		rxCrypto := kernelCipher(support, c.rawConn.In, *c.rawConn.CipherSuite, true)
+		if rxCrypto == nil {
+			return E.New("unsupported cipher suite")
+		}
+		err = control.Raw(c.rawSyscallConn, func(fd uintptr) error {
+			return syscall.SetsockoptString(int(fd), unix.SOL_TLS, TLS_RX, rxCrypto.String())
+		})
+		if err != nil {
+			return err
+		}
+		if *c.rawConn.Vers >= tls.VersionTLS13 && support.TLS_RX_NOPADDING {
+			err = control.Raw(c.rawSyscallConn, func(fd uintptr) error {
+				return syscall.SetsockoptInt(int(fd), unix.SOL_TLS, TLS_RX_EXPECT_NO_PAD, 1)
+			})
+			if err != nil {
+				return err
+			}
+		}
+		c.kernelRx = true
+		c.logger.DebugContext(c.ctx, "ktls: kernel TLS RX enabled")
+	}
+	return nil
+}
+
+func (c *Conn) resetupTX() (func() error, error) {
+	if !c.kernelTx {
+		return nil, nil
+	}
+	support, err := KernelSupport()
+	if err != nil {
+		return nil, err
+	}
+	if !support.TLS_Version13_KeyUpdate {
+		return nil, errors.New("ktls: kernel does not support rekey")
+	}
+	txCrypto := kernelCipher(support, c.rawConn.Out, *c.rawConn.CipherSuite, false)
+	if txCrypto == nil {
+		return nil, errors.New("ktls: set kernelCipher on unsupported tls session")
+	}
+	return func() error {
+		return control.Raw(c.rawSyscallConn, func(fd uintptr) error {
+			return syscall.SetsockoptString(int(fd), unix.SOL_TLS, TLS_TX, txCrypto.String())
+		})
+	}, nil
+}
+
+func (c *Conn) resetupRX() error {
+	if !c.kernelRx {
+		return nil
+	}
+	support, err := KernelSupport()
+	if err != nil {
+		return err
+	}
+	if !support.TLS_Version13_KeyUpdate {
+		return errors.New("ktls: kernel does not support rekey")
+	}
+	rxCrypto := kernelCipher(support, c.rawConn.In, *c.rawConn.CipherSuite, true)
+	if rxCrypto == nil {
+		return errors.New("ktls: set kernelCipher on unsupported tls session")
+	}
+	return control.Raw(c.rawSyscallConn, func(fd uintptr) error {
+		return syscall.SetsockoptString(int(fd), unix.SOL_TLS, TLS_RX, rxCrypto.String())
+	})
+}
+
+func (c *Conn) readKernelRecord() (uint8, []byte, error) {
+	if c.rawConn.RawInput.Len() < maxPlaintext {
+		c.rawConn.RawInput.Grow(maxPlaintext - c.rawConn.RawInput.Len())
+	}
+
+	data := c.rawConn.RawInput.Bytes()[:maxPlaintext]
+
+	// cmsg for record type
+	buffer := make([]byte, unix.CmsgSpace(1))
+	cmsg := (*unix.Cmsghdr)(unsafe.Pointer(&buffer[0]))
+	cmsg.SetLen(unix.CmsgLen(1))
+
+	var iov unix.Iovec
+	iov.Base = &data[0]
+	iov.SetLen(len(data))
+
+	var msg unix.Msghdr
+	msg.Control = &buffer[0]
+	msg.Controllen = cmsg.Len
+	msg.Iov = &iov
+	msg.Iovlen = 1
+
+	var n int
+	var err error
+	er := c.rawSyscallConn.Read(func(fd uintptr) bool {
+		n, err = recvmsg(int(fd), &msg, 0)
+		return err != unix.EAGAIN || c.pendingRxSplice
+	})
+	if er != nil {
+		return 0, nil, er
+	}
+	switch err {
+	case nil:
+	case syscall.EINVAL, syscall.EAGAIN:
+		return 0, nil, c.rawConn.In.SetErrorLocked(c.sendAlert(alertProtocolVersion))
+	case syscall.EMSGSIZE:
+		return 0, nil, c.rawConn.In.SetErrorLocked(c.sendAlert(alertRecordOverflow))
+	case syscall.EBADMSG:
+		return 0, nil, c.rawConn.In.SetErrorLocked(c.sendAlert(alertDecryptError))
+	default:
+		return 0, nil, err
+	}
+
+	if n <= 0 {
+		return 0, nil, c.rawConn.In.SetErrorLocked(io.EOF)
+	}
+
+	if cmsg.Level == unix.SOL_TLS && cmsg.Type == TLS_GET_RECORD_TYPE {
+		typ := buffer[unix.CmsgLen(0)]
+		return typ, data[:n], nil
+	}
+
+	return recordTypeApplicationData, data[:n], nil
+}
+
+func (c *Conn) writeKernelRecord(typ uint16, data []byte) (int, error) {
+	if typ == recordTypeApplicationData {
+		return c.conn.Write(data)
+	}
+
+	// cmsg for record type
+	buffer := make([]byte, unix.CmsgSpace(1))
+	cmsg := (*unix.Cmsghdr)(unsafe.Pointer(&buffer[0]))
+	cmsg.SetLen(unix.CmsgLen(1))
+	buffer[unix.CmsgLen(0)] = byte(typ)
+	cmsg.Level = unix.SOL_TLS
+	cmsg.Type = TLS_SET_RECORD_TYPE
+
+	var iov unix.Iovec
+	iov.Base = &data[0]
+	iov.SetLen(len(data))
+
+	var msg unix.Msghdr
+	msg.Control = &buffer[0]
+	msg.Controllen = cmsg.Len
+	msg.Iov = &iov
+	msg.Iovlen = 1
+
+	var n int
+	var err error
+	ew := c.rawSyscallConn.Write(func(fd uintptr) bool {
+		n, err = sendmsg(int(fd), &msg, 0)
+		return err != unix.EAGAIN
+	})
+	if ew != nil {
+		return 0, ew
+	}
+	return n, err
+}
+
+//go:linkname recvmsg golang.org/x/sys/unix.recvmsg
+func recvmsg(fd int, msg *unix.Msghdr, flags int) (n int, err error)
+
+//go:linkname sendmsg golang.org/x/sys/unix.sendmsg
+func sendmsg(fd int, msg *unix.Msghdr, flags int) (n int, err error)

common/ktls/ktls_prf.go

@@ -0,0 +1,24 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build linux && go1.25 && badlinkname
+
+package ktls
+
+import "unsafe"
+
+//go:linkname cipherSuiteByID github.com/metacubex/utls.cipherSuiteByID
+func cipherSuiteByID(id uint16) unsafe.Pointer
+
+//go:linkname keysFromMasterSecret github.com/metacubex/utls.keysFromMasterSecret
+func keysFromMasterSecret(version uint16, suite unsafe.Pointer, masterSecret, clientRandom, serverRandom []byte, macLen, keyLen, ivLen int) (clientMAC, serverMAC, clientKey, serverKey, clientIV, serverIV []byte)
+
+//go:linkname cipherSuiteTLS13ByID github.com/metacubex/utls.cipherSuiteTLS13ByID
+func cipherSuiteTLS13ByID(id uint16) unsafe.Pointer
+
+//go:linkname nextTrafficSecret github.com/metacubex/utls.(*cipherSuiteTLS13).nextTrafficSecret
+func nextTrafficSecret(cs unsafe.Pointer, trafficSecret []byte) []byte
+
+//go:linkname trafficKey github.com/metacubex/utls.(*cipherSuiteTLS13).trafficKey
+func trafficKey(cs unsafe.Pointer, trafficSecret []byte) (key, iv []byte)

common/ktls/ktls_read.go

@@ -0,0 +1,293 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build linux && go1.25 && badlinkname
+
+package ktls
+
+import (
+	"bytes"
+	"crypto/tls"
+	"fmt"
+	"io"
+	"net"
+	"unsafe"
+)
+
+func (c *Conn) Read(b []byte) (int, error) {
+	if !c.kernelRx {
+		return c.Conn.Read(b)
+	}
+
+	if len(b) == 0 {
+		// Put this after Handshake, in case people were calling
+		// Read(nil) for the side effect of the Handshake.
+		return 0, nil
+	}
+
+	c.rawConn.In.Lock()
+	defer c.rawConn.In.Unlock()
+
+	for c.rawConn.Input.Len() == 0 {
+		if err := c.readRecord(); err != nil {
+			return 0, err
+		}
+		for c.rawConn.Hand.Len() > 0 {
+			if err := c.handlePostHandshakeMessage(); err != nil {
+				return 0, err
+			}
+		}
+	}
+
+	n, _ := c.rawConn.Input.Read(b)
+
+	// If a close-notify alert is waiting, read it so that we can return (n,
+	// EOF) instead of (n, nil), to signal to the HTTP response reading
+	// goroutine that the connection is now closed. This eliminates a race
+	// where the HTTP response reading goroutine would otherwise not observe
+	// the EOF until its next read, by which time a client goroutine might
+	// have already tried to reuse the HTTP connection for a new request.
+	// See https://golang.org/cl/76400046 and https://golang.org/issue/3514
+	if n != 0 && c.rawConn.Input.Len() == 0 && c.rawConn.RawInput.Len() > 0 &&
+		c.rawConn.RawInput.Bytes()[0] == recordTypeAlert {
+		if err := c.readRecord(); err != nil {
+			return n, err // will be io.EOF on closeNotify
+		}
+	}
+
+	return n, nil
+}
+
+func (c *Conn) readRecord() error {
+	if *c.rawConn.In.Err != nil {
+		return *c.rawConn.In.Err
+	}
+
+	typ, data, err := c.readRawRecord()
+	if err != nil {
+		return err
+	}
+
+	if len(data) > maxPlaintext {
+		return c.rawConn.In.SetErrorLocked(c.sendAlert(alertRecordOverflow))
+	}
+
+	// Application Data messages are always protected.
+	if c.rawConn.In.Cipher == nil && typ == recordTypeApplicationData {
+		return c.rawConn.In.SetErrorLocked(c.sendAlert(alertUnexpectedMessage))
+	}
+
+	//if typ != recordTypeAlert && typ != recordTypeChangeCipherSpec && len(data) > 0 {
+	// This is a state-advancing message: reset the retry count.
+	// c.retryCount = 0
+	//}
+
+	// Handshake messages MUST NOT be interleaved with other record types in TLS 1.3.
+	if *c.rawConn.Vers == tls.VersionTLS13 && typ != recordTypeHandshake && c.rawConn.Hand.Len() > 0 {
+		return c.rawConn.In.SetErrorLocked(c.sendAlert(alertUnexpectedMessage))
+	}
+
+	switch typ {
+	default:
+		return c.rawConn.In.SetErrorLocked(c.sendAlert(alertUnexpectedMessage))
+	case recordTypeAlert:
+		//if c.quic != nil {
+		//	return c.rawConn.In.setErrorLocked(c.sendAlert(alertUnexpectedMessage))
+		//}
+		if len(data) != 2 {
+			return c.rawConn.In.SetErrorLocked(c.sendAlert(alertUnexpectedMessage))
+		}
+		if data[1] == alertCloseNotify {
+			return c.rawConn.In.SetErrorLocked(io.EOF)
+		}
+		if *c.rawConn.Vers == tls.VersionTLS13 {
+			// TLS 1.3 removed warning-level alerts except for alertUserCanceled
+			// (RFC 8446, § 6.1). Since at least one major implementation
+			// (https://bugs.openjdk.org/browse/JDK-8323517) misuses this alert,
+			// many TLS stacks now ignore it outright when seen in a TLS 1.3
+			// handshake (e.g. BoringSSL, NSS, Rustls).
+			if data[1] == alertUserCanceled {
+				// Like TLS 1.2 alertLevelWarning alerts, we drop the record and retry.
+				return c.retryReadRecord( /*expectChangeCipherSpec*/ )
+			}
+			return c.rawConn.In.SetErrorLocked(&net.OpError{Op: "remote error", Err: tls.AlertError(data[1])})
+		}
+		switch data[0] {
+		case alertLevelWarning:
+			// Drop the record on the floor and retry.
+			return c.retryReadRecord( /*expectChangeCipherSpec*/ )
+		case alertLevelError:
+			return c.rawConn.In.SetErrorLocked(&net.OpError{Op: "remote error", Err: tls.AlertError(data[1])})
+		default:
+			return c.rawConn.In.SetErrorLocked(c.sendAlert(alertUnexpectedMessage))
+		}
+
+	case recordTypeChangeCipherSpec:
+		if len(data) != 1 || data[0] != 1 {
+			return c.rawConn.In.SetErrorLocked(c.sendAlert(alertDecodeError))
+		}
+		// Handshake messages are not allowed to fragment across the CCS.
+		if c.rawConn.Hand.Len() > 0 {
+			return c.rawConn.In.SetErrorLocked(c.sendAlert(alertUnexpectedMessage))
+		}
+		// In TLS 1.3, change_cipher_spec records are ignored until the
+		// Finished. See RFC 8446, Appendix D.4. Note that according to Section
+		// 5, a server can send a ChangeCipherSpec before its ServerHello, when
+		// c.vers is still unset. That's not useful though and suspicious if the
+		// server then selects a lower protocol version, so don't allow that.
+		if *c.rawConn.Vers == tls.VersionTLS13 {
+			return c.retryReadRecord( /*expectChangeCipherSpec*/ )
+		}
+		// if !expectChangeCipherSpec {
+		return c.rawConn.In.SetErrorLocked(c.sendAlert(alertUnexpectedMessage))
+		//}
+		//if err := c.rawConn.In.changeCipherSpec(); err != nil {
+		//	return c.rawConn.In.setErrorLocked(c.sendAlert(err.(alert)))
+		//}
+
+	case recordTypeApplicationData:
+		// Some OpenSSL servers send empty records in order to randomize the
+		// CBC RawIV. Ignore a limited number of empty records.
+		if len(data) == 0 {
+			return c.retryReadRecord( /*expectChangeCipherSpec*/ )
+		}
+		// Note that data is owned by c.rawInput, following the Next call above,
+		// to avoid copying the plaintext. This is safe because c.rawInput is
+		// not read from or written to until c.input is drained.
+		c.rawConn.Input.Reset(data)
+	case recordTypeHandshake:
+		if len(data) == 0 {
+			return c.rawConn.In.SetErrorLocked(c.sendAlert(alertUnexpectedMessage))
+		}
+		c.rawConn.Hand.Write(data)
+	}
+
+	return nil
+}
+
+//nolint:staticcheck
+func (c *Conn) readRawRecord() (typ uint8, data []byte, err error) {
+	// Read from kernel.
+	if c.kernelRx {
+		return c.readKernelRecord()
+	}
+
+	// Read header, payload.
+	if err = c.readFromUntil(c.conn, recordHeaderLen); err != nil {
+		// RFC 8446, Section 6.1 suggests that EOF without an alertCloseNotify
+		// is an error, but popular web sites seem to do this, so we accept it
+		// if and only if at the record boundary.
+		if err == io.ErrUnexpectedEOF && c.rawConn.RawInput.Len() == 0 {
+			err = io.EOF
+		}
+		if e, ok := err.(net.Error); !ok || !e.Temporary() {
+			c.rawConn.In.SetErrorLocked(err)
+		}
+		return
+	}
+	hdr := c.rawConn.RawInput.Bytes()[:recordHeaderLen]
+	typ = hdr[0]
+
+	vers := uint16(hdr[1])<<8 | uint16(hdr[2])
+	expectedVers := *c.rawConn.Vers
+	if expectedVers == tls.VersionTLS13 {
+		// All TLS 1.3 records are expected to have 0x0303 (1.2) after
+		// the initial hello (RFC 8446 Section 5.1).
+		expectedVers = tls.VersionTLS12
+	}
+	n := int(hdr[3])<<8 | int(hdr[4])
+	if /*c.haveVers && */ vers != expectedVers {
+		c.sendAlert(alertProtocolVersion)
+		msg := fmt.Sprintf("received record with version %x when expecting version %x", vers, expectedVers)
+		err = c.rawConn.In.SetErrorLocked(c.newRecordHeaderError(nil, msg))
+		return
+	}
+	//if !c.haveVers {
+	//	// First message, be extra suspicious: this might not be a TLS
+	//	// client. Bail out before reading a full 'body', if possible.
+	//	// The current max version is 3.3 so if the version is >= 16.0,
+	//	// it's probably not real.
+	//	if (typ != recordTypeAlert && typ != recordTypeHandshake) || vers >= 0x1000 {
+	//		err = c.rawConn.In.SetErrorLocked(c.newRecordHeaderError(c.conn, "first record does not look like a TLS handshake"))
+	//		return
+	//	}
+	//}
+	if *c.rawConn.Vers == tls.VersionTLS13 && n > maxCiphertextTLS13 || n > maxCiphertext {
+		c.sendAlert(alertRecordOverflow)
+		msg := fmt.Sprintf("oversized record received with length %d", n)
+		err = c.rawConn.In.SetErrorLocked(c.newRecordHeaderError(nil, msg))
+		return
+	}
+	if err = c.readFromUntil(c.conn, recordHeaderLen+n); err != nil {
+		if e, ok := err.(net.Error); !ok || !e.Temporary() {
+			c.rawConn.In.SetErrorLocked(err)
+		}
+		return
+	}
+
+	// Process message.
+	record := c.rawConn.RawInput.Next(recordHeaderLen + n)
+	data, typ, err = c.rawConn.In.Decrypt(record)
+	if err != nil {
+		err = c.rawConn.In.SetErrorLocked(c.sendAlert(*(*uint8)((*[2]unsafe.Pointer)(unsafe.Pointer(&err))[1])))
+		return
+	}
+	return
+}
+
+// retryReadRecord recurs into readRecordOrCCS to drop a non-advancing record, like
+// a warning alert, empty application_data, or a change_cipher_spec in TLS 1.3.
+func (c *Conn) retryReadRecord( /*expectChangeCipherSpec bool*/ ) error {
+	//c.retryCount++
+	//if c.retryCount > maxUselessRecords {
+	//	c.sendAlert(alertUnexpectedMessage)
+	//	return c.in.setErrorLocked(errors.New("tls: too many ignored records"))
+	//}
+	return c.readRecord( /*expectChangeCipherSpec*/ )
+}
+
+// atLeastReader reads from R, stopping with EOF once at least N bytes have been
+// read. It is different from an io.LimitedReader in that it doesn't cut short
+// the last Read call, and in that it considers an early EOF an error.
+type atLeastReader struct {
+	R io.Reader
+	N int64
+}
+
+func (r *atLeastReader) Read(p []byte) (int, error) {
+	if r.N <= 0 {
+		return 0, io.EOF
+	}
+	n, err := r.R.Read(p)
+	r.N -= int64(n) // won't underflow unless len(p) >= n > 9223372036854775809
+	if r.N > 0 && err == io.EOF {
+		return n, io.ErrUnexpectedEOF
+	}
+	if r.N <= 0 && err == nil {
+		return n, io.EOF
+	}
+	return n, err
+}
+
+// readFromUntil reads from r into c.rawConn.RawInput until c.rawConn.RawInput contains
+// at least n bytes or else returns an error.
+func (c *Conn) readFromUntil(r io.Reader, n int) error {
+	if c.rawConn.RawInput.Len() >= n {
+		return nil
+	}
+	needs := n - c.rawConn.RawInput.Len()
+	// There might be extra input waiting on the wire. Make a best effort
+	// attempt to fetch it so that it can be used in (*Conn).Read to
+	// "predict" closeNotify alerts.
+	c.rawConn.RawInput.Grow(needs + bytes.MinRead)
+	_, err := c.rawConn.RawInput.ReadFrom(&atLeastReader{r, int64(needs)})
+	return err
+}
+
+func (c *Conn) newRecordHeaderError(conn net.Conn, msg string) (err tls.RecordHeaderError) {
+	err.Msg = msg
+	err.Conn = conn
+	copy(err.RecordHeader[:], c.rawConn.RawInput.Bytes())
+	return err
+}

common/ktls/ktls_read_wait.go

@@ -0,0 +1,41 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build linux && go1.25 && badlinkname
+
+package ktls
+
+import (
+	"github.com/sagernet/sing/common/buf"
+	N "github.com/sagernet/sing/common/network"
+)
+
+func (c *Conn) InitializeReadWaiter(options N.ReadWaitOptions) (needCopy bool) {
+	c.readWaitOptions = options
+	return false
+}
+
+func (c *Conn) WaitReadBuffer() (buffer *buf.Buffer, err error) {
+	c.rawConn.In.Lock()
+	defer c.rawConn.In.Unlock()
+	for c.rawConn.Input.Len() == 0 {
+		err = c.readRecord()
+		if err != nil {
+			return
+		}
+	}
+	buffer = c.readWaitOptions.NewBuffer()
+	n, err := c.rawConn.Input.Read(buffer.FreeBytes())
+	if err != nil {
+		buffer.Release()
+		return
+	}
+	buffer.Truncate(n)
+	if n != 0 && c.rawConn.Input.Len() == 0 && c.rawConn.Input.Len() > 0 &&
+		c.rawConn.RawInput.Bytes()[0] == recordTypeAlert {
+		_ = c.rawConn.ReadRecord()
+	}
+	c.readWaitOptions.PostReturn(buffer)
+	return
+}

common/ktls/ktls_stub_nolinkname.go

@@ -0,0 +1,15 @@
+//go:build linux && go1.25 && !badlinkname
+
+package ktls
+
+import (
+	"context"
+
+	E "github.com/sagernet/sing/common/exceptions"
+	"github.com/sagernet/sing/common/logger"
+	aTLS "github.com/sagernet/sing/common/tls"
+)
+
+func NewConn(ctx context.Context, logger logger.ContextLogger, conn aTLS.Conn, txOffload, rxOffload bool) (aTLS.Conn, error) {
+	return nil, E.New("kTLS requires build flags `badlinkname` and `-ldflags=-checklinkname=0`, please recompile your binary")
+}

common/ktls/ktls_stub_nonlinux.go

@@ -0,0 +1,15 @@
+//go:build !linux
+
+package ktls
+
+import (
+	"context"
+
+	E "github.com/sagernet/sing/common/exceptions"
+	"github.com/sagernet/sing/common/logger"
+	aTLS "github.com/sagernet/sing/common/tls"
+)
+
+func NewConn(ctx context.Context, logger logger.ContextLogger, conn aTLS.Conn, txOffload, rxOffload bool) (aTLS.Conn, error) {
+	return nil, E.New("kTLS is only supported on Linux")
+}

common/ktls/ktls_stub_oldgo.go

@@ -0,0 +1,15 @@
+//go:build linux && !go1.25
+
+package ktls
+
+import (
+	"context"
+
+	E "github.com/sagernet/sing/common/exceptions"
+	"github.com/sagernet/sing/common/logger"
+	aTLS "github.com/sagernet/sing/common/tls"
+)
+
+func NewConn(ctx context.Context, logger logger.ContextLogger, conn aTLS.Conn, txOffload, rxOffload bool) (aTLS.Conn, error) {
+	return nil, E.New("kTLS requires Go 1.25 or later, please recompile your binary")
+}

common/ktls/ktls_write.go

@@ -0,0 +1,154 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build linux && go1.25 && badlinkname
+
+package ktls
+
+import (
+	"crypto/cipher"
+	"crypto/tls"
+	"errors"
+	"net"
+)
+
+func (c *Conn) Write(b []byte) (int, error) {
+	if !c.kernelTx {
+		return c.Conn.Write(b)
+	}
+	// interlock with Close below
+	for {
+		x := c.rawConn.ActiveCall.Load()
+		if x&1 != 0 {
+			return 0, net.ErrClosed
+		}
+		if c.rawConn.ActiveCall.CompareAndSwap(x, x+2) {
+			break
+		}
+	}
+	defer c.rawConn.ActiveCall.Add(-2)
+
+	//if err := c.Conn.HandshakeContext(context.Background()); err != nil {
+	//	return 0, err
+	//}
+
+	c.rawConn.Out.Lock()
+	defer c.rawConn.Out.Unlock()
+
+	if err := *c.rawConn.Out.Err; err != nil {
+		return 0, err
+	}
+
+	if !c.rawConn.IsHandshakeComplete.Load() {
+		return 0, tls.AlertError(alertInternalError)
+	}
+
+	if *c.rawConn.CloseNotifySent {
+		// return 0, errShutdown
+		return 0, errors.New("tls: protocol is shutdown")
+	}
+
+	// TLS 1.0 is susceptible to a chosen-plaintext
+	// attack when using block mode ciphers due to predictable IVs.
+	// This can be prevented by splitting each Application Data
+	// record into two records, effectively randomizing the RawIV.
+	//
+	// https://www.openssl.org/~bodo/tls-cbc.txt
+	// https://bugzilla.mozilla.org/show_bug.cgi?id=665814
+	// https://www.imperialviolet.org/2012/01/15/beastfollowup.html
+
+	var m int
+	if len(b) > 1 && *c.rawConn.Vers == tls.VersionTLS10 {
+		if _, ok := (*c.rawConn.Out.Cipher).(cipher.BlockMode); ok {
+			n, err := c.writeRecordLocked(recordTypeApplicationData, b[:1])
+			if err != nil {
+				return n, c.rawConn.Out.SetErrorLocked(err)
+			}
+			m, b = 1, b[1:]
+		}
+	}
+
+	n, err := c.writeRecordLocked(recordTypeApplicationData, b)
+	return n + m, c.rawConn.Out.SetErrorLocked(err)
+}
+
+func (c *Conn) writeRecordLocked(typ uint16, data []byte) (n int, err error) {
+	if !c.kernelTx {
+		return c.rawConn.WriteRecordLocked(typ, data)
+	}
+	/*for len(data) > 0 {
+		m := len(data)
+		if maxPayload := c.maxPayloadSizeForWrite(typ); m > maxPayload {
+			m = maxPayload
+		}
+		_, err = c.writeKernelRecord(typ, data[:m])
+		if err != nil {
+			return
+		}
+		n += m
+		data = data[m:]
+	}*/
+	return c.writeKernelRecord(typ, data)
+}
+
+const (
+	// tcpMSSEstimate is a conservative estimate of the TCP maximum segment
+	// size (MSS). A constant is used, rather than querying the kernel for
+	// the actual MSS, to avoid complexity. The value here is the IPv6
+	// minimum MTU (1280 bytes) minus the overhead of an IPv6 header (40
+	// bytes) and a TCP header with timestamps (32 bytes).
+	tcpMSSEstimate = 1208
+
+	// recordSizeBoostThreshold is the number of bytes of application data
+	// sent after which the TLS record size will be increased to the
+	// maximum.
+	recordSizeBoostThreshold = 128 * 1024
+)
+
+func (c *Conn) maxPayloadSizeForWrite(typ uint16) int {
+	if /*c.config.DynamicRecordSizingDisabled ||*/ typ != recordTypeApplicationData {
+		return maxPlaintext
+	}
+
+	if *c.rawConn.PacketsSent >= recordSizeBoostThreshold {
+		return maxPlaintext
+	}
+
+	// Subtract TLS overheads to get the maximum payload size.
+	payloadBytes := tcpMSSEstimate - recordHeaderLen - c.rawConn.Out.ExplicitNonceLen()
+	if rawCipher := *c.rawConn.Out.Cipher; rawCipher != nil {
+		switch ciph := rawCipher.(type) {
+		case cipher.Stream:
+			payloadBytes -= (*c.rawConn.Out.Mac).Size()
+		case cipher.AEAD:
+			payloadBytes -= ciph.Overhead()
+		/*case cbcMode:
+		blockSize := ciph.BlockSize()
+		// The payload must fit in a multiple of blockSize, with
+		// room for at least one padding byte.
+		payloadBytes = (payloadBytes & ^(blockSize - 1)) - 1
+		// The RawMac is appended before padding so affects the
+		// payload size directly.
+		payloadBytes -= c.out.mac.Size()*/
+		default:
+			panic("unknown cipher type")
+		}
+	}
+	if *c.rawConn.Vers == tls.VersionTLS13 {
+		payloadBytes-- // encrypted ContentType
+	}
+
+	// Allow packet growth in arithmetic progression up to max.
+	pkt := *c.rawConn.PacketsSent
+	*c.rawConn.PacketsSent++
+	if pkt > 1000 {
+		return maxPlaintext // avoid overflow in multiply below
+	}
+
+	n := payloadBytes * int(pkt+1)
+	if n > maxPlaintext {
+		n = maxPlaintext
+	}
+	return n
+}

common/listener/listener.go

@@ -151,6 +151,7 @@ func ListenNetworkNamespace[T any](nameOrPath string, block func() (T, error)) (
 		if err != nil {
 			return common.DefaultValue[T](), E.Cause(err, "get current netns")
 		}
+		defer currentNs.Close()
 		defer netns.Set(currentNs)
 		var targetNs netns.NsHandle
 		if strings.HasPrefix(nameOrPath, "/") {