feat: Add Balancer outbound

.github/setup_legacy_go.sh

@@ -0,0 +1,25 @@
+#!/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/workflows/build.yml

@@ -46,7 +46,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: ^1.24
+          go-version: ^1.24.3
       - name: Check input version
         if: github.event_name == 'workflow_dispatch'
         run: |-
@@ -94,7 +94,6 @@ jobs:
           - { os: windows, arch: arm64 }
 
           - { os: darwin, arch: amd64 }
-          - { os: darwin, arch: amd64, legacy_go: true }
           - { os: darwin, arch: arm64 }
 
           - { os: android, arch: arm64, ndk: "aarch64-linux-android21" }
@@ -106,16 +105,28 @@ jobs:
         uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
         with:
           fetch-depth: 0
-      - name: Setup Go
-        if: matrix.legacy_go
-        uses: actions/setup-go@v5
-        with:
-          go-version: ~1.20
       - name: Setup Go
         if: ${{ ! matrix.legacy_go }}
         uses: actions/setup-go@v5
         with:
-          go-version: ^1.24
+          go-version: ^1.24.3
+      - name: Cache Legacy Go
+        if: matrix.require_legacy_go
+        id: cache-legacy-go
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/go/go_legacy
+          key: go_legacy_1236
+      - name: Setup Legacy Go
+        if: matrix.legacy_go && steps.cache-legacy-go.outputs.cache-hit != 'true'
+        run: |-
+          .github/setup_legacy_go.sh
+      - name: Setup Legacy Go 2
+        if: matrix.legacy_go
+        run: |-
+          echo "PATH=$HOME/go/go_legacy/bin:$PATH" >> $GITHUB_ENV
+          echo "GOROOT=$HOME/go/go_legacy" >> $GITHUB_ENV
       - name: Setup Android NDK
         if: matrix.os == 'android'
         uses: nttld/setup-ndk@v1
@@ -129,10 +140,7 @@ jobs:
       - name: Set build tags
         run: |
           set -xeuo pipefail
-          TAGS='with_gvisor,with_quic,with_dhcp,with_wireguard,with_utls,with_reality_server,with_acme,with_clash_api'
-          if [ ! '${{ matrix.legacy_go }}' = 'true' ]; then
-            TAGS="${TAGS},with_ech"
-          fi
+          TAGS='with_gvisor,with_quic,with_dhcp,with_wireguard,with_utls,with_acme,with_clash_api,with_tailscale'
           echo "BUILD_TAGS=${TAGS}" >> "${GITHUB_ENV}"
       - name: Build
         if: matrix.os != 'android'
@@ -286,7 +294,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: ^1.24
+          go-version: ^1.24.3
       - name: Setup Android NDK
         id: setup-ndk
         uses: nttld/setup-ndk@v1
@@ -366,7 +374,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: ^1.24
+          go-version: ^1.24.3
       - name: Setup Android NDK
         id: setup-ndk
         uses: nttld/setup-ndk@v1
@@ -464,7 +472,7 @@ jobs:
         if: matrix.if
         uses: actions/setup-go@v5
         with:
-          go-version: ^1.24
+          go-version: ^1.24.3
       - name: Setup Xcode stable
         if: matrix.if && github.ref == 'refs/heads/main-next'
         run: |-
@@ -541,10 +549,13 @@ jobs:
           MACOS_PROJECT_VERSION=$(go run -v ./cmd/internal/app_store_connect next_macos_project_version)
           echo "MACOS_PROJECT_VERSION=$MACOS_PROJECT_VERSION"
           echo "MACOS_PROJECT_VERSION=$MACOS_PROJECT_VERSION" >> "$GITHUB_ENV"
+      - name: Update version
+        if: matrix.if && matrix.name != 'iOS'
+        run: |-
+          go run -v ./cmd/internal/update_apple_version --ci
       - name: Build
         if: matrix.if
         run: |-
-          go run -v ./cmd/internal/update_apple_version --ci
           cd clients/apple
           xcodebuild archive \
             -scheme "${{ matrix.scheme }}" \

.github/workflows/lint.yml

@@ -28,7 +28,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: ^1.24
+          go-version: ^1.24.3
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v6
         with:

.github/workflows/linux.yml

@@ -25,7 +25,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: ^1.24
+          go-version: ^1.24.3
       - name: Check input version
         if: github.event_name == 'workflow_dispatch'
         run: |-
@@ -66,7 +66,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: ^1.24
+          go-version: ^1.24.3
       - name: Setup Android NDK
         if: matrix.os == 'android'
         uses: nttld/setup-ndk@v1
@@ -80,10 +80,7 @@ jobs:
       - name: Set build tags
         run: |
           set -xeuo pipefail
-          TAGS='with_gvisor,with_quic,with_dhcp,with_wireguard,with_utls,with_reality_server,with_acme,with_clash_api'
-          if [ ! '${{ matrix.legacy_go }}' = 'true' ]; then
-            TAGS="${TAGS},with_ech"
-          fi
+          TAGS='with_gvisor,with_quic,with_dhcp,with_wireguard,with_utls,with_acme,with_clash_api'
           echo "BUILD_TAGS=${TAGS}" >> "${GITHUB_ENV}"
       - name: Build
         run: |

.golangci.yml

@@ -27,9 +27,7 @@ run:
     - with_quic
     - with_dhcp
     - with_wireguard
-    - with_ech
     - with_utls
-    - with_reality_server
     - with_acme
     - with_clash_api
 

.goreleaser.fury.yaml

@@ -6,17 +6,18 @@ builds:
       - -v
       - -trimpath
     ldflags:
-      - -X github.com/sagernet/sing-box/constant.Version={{ .Version }} -s -w -buildid=
+      - -X github.com/sagernet/sing-box/constant.Version={{ .Version }}
+      - -s
+      - -buildid=
     tags:
       - with_gvisor
       - with_quic
       - with_dhcp
       - with_wireguard
-      - with_ech
       - with_utls
-      - with_reality_server
       - with_acme
       - with_clash_api
+      - with_tailscale
     env:
       - CGO_ENABLED=0
     targets:

.goreleaser.yaml

@@ -16,13 +16,13 @@ builds:
       - with_quic
       - with_dhcp
       - with_wireguard
-      - with_ech
       - with_utls
-      - with_reality_server
       - with_acme
       - with_clash_api
+      - with_tailscale
     env:
       - CGO_ENABLED=0
+      - GOTOOLCHAIN=local
     targets:
       - linux_386
       - linux_amd64_v1
@@ -46,21 +46,21 @@ builds:
       - with_dhcp
       - with_wireguard
       - with_utls
-      - with_reality_server
       - with_acme
       - with_clash_api
+      - with_tailscale
     env:
       - CGO_ENABLED=0
-      - GOROOT={{ .Env.GOPATH }}/go1.20.14
-    tool: "{{ .Env.GOPATH }}/go1.20.14/bin/go"
+      - GOROOT={{ .Env.GOPATH }}/go_legacy
+    tool: "{{ .Env.GOPATH }}/go_legacy/bin/go"
     targets:
       - windows_amd64_v1
       - windows_386
-      - darwin_amd64_v1
   - id: android
     <<: *template
     env:
       - CGO_ENABLED=1
+      - GOTOOLCHAIN=local
     overrides:
       - goos: android
         goarch: arm

Dockerfile

@@ -13,7 +13,7 @@ RUN set -ex \
     && 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_ech,with_utls,with_reality_server,with_acme,with_clash_api" \
+        "with_gvisor,with_quic,with_dhcp,with_wireguard,with_utls,with_acme,with_clash_api,with_tailscale" \
         -o /go/bin/sing-box \
         -ldflags "-X \"github.com/sagernet/sing-box/constant.Version=$VERSION\" -s -w -buildid=" \
         ./cmd/sing-box

Makefile

@@ -1,9 +1,7 @@
 NAME = sing-box
 COMMIT = $(shell git rev-parse --short HEAD)
-TAGS_GO120 = with_gvisor,with_dhcp,with_wireguard,with_reality_server,with_clash_api,with_quic,with_utls
-TAGS_GO121 = with_ech
-TAGS ?= $(TAGS_GO118),$(TAGS_GO120),$(TAGS_GO121)
-TAGS_TEST ?= with_gvisor,with_quic,with_wireguard,with_grpc,with_ech,with_utls,with_reality_server
+TAGS ?= with_gvisor,with_dhcp,with_wireguard,with_clash_api,with_quic,with_utls,with_tailscale
+TAGS_TEST ?= with_gvisor,with_quic,with_wireguard,with_grpc,with_utls
 
 GOHOSTOS = $(shell go env GOHOSTOS)
 GOHOSTARCH = $(shell go env GOHOSTARCH)
@@ -17,14 +15,12 @@ PREFIX ?= $(shell go env GOPATH)
 .PHONY: test release docs build
 
 build:
+	export GOTOOLCHAIN=local && \
 	go build $(MAIN_PARAMS) $(MAIN)
 
-ci_build_go120:
-	go build $(PARAMS) $(MAIN)
-	go build $(PARAMS) -tags "$(TAGS_GO120)" $(MAIN)
-
 ci_build:
-	go build $(PARAMS) $(MAIN)
+	export GOTOOLCHAIN=local && \
+	go build $(PARAMS) $(MAIN) && \
 	go build $(MAIN_PARAMS) $(MAIN)
 
 generate_completions:
@@ -61,6 +57,9 @@ proto_install:
 	go install -v google.golang.org/protobuf/cmd/protoc-gen-go@latest
 	go install -v google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest
 
+update_certificates:
+	go run ./cmd/internal/update_certificates
+
 release:
 	go run ./cmd/internal/build goreleaser release --clean --skip publish
 	mkdir dist/release
@@ -227,8 +226,8 @@ lib:
 	go run ./cmd/internal/build_libbox -target ios
 
 lib_install:
-	go install -v github.com/sagernet/gomobile/cmd/[email protected].4
-	go install -v github.com/sagernet/gomobile/cmd/[email protected].4
+	go install -v github.com/sagernet/gomobile/cmd/[email protected].6
+	go install -v github.com/sagernet/gomobile/cmd/[email protected].6
 
 docs:
 	venv/bin/mkdocs serve

adapter/certificate.go

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