Update On Wed Apr 15 21:30:54 CEST 2026

.github/update.log

@@ -1330,3 +1330,4 @@ Update On Sat Apr 11 20:57:57 CEST 2026
 Update On Sun Apr 12 21:03:12 CEST 2026
 Update On Mon Apr 13 21:25:44 CEST 2026
 Update On Tue Apr 14 21:27:36 CEST 2026
+Update On Wed Apr 15 21:30:45 CEST 2026

clash-meta/common/convert/converter.go

@@ -453,10 +453,18 @@ func ConvertsV2Ray(buf []byte) ([]map[string]any, error) {
 						"host": pluginInfo.Get("obfs-host"),
 					}
 				} else if strings.Contains(pluginName, "v2ray-plugin") {
+					mode := pluginInfo.Get("mode")
+					if mode == "" {
+						mode = pluginInfo.Get("obfs")
+					}
+					host := pluginInfo.Get("host")
+					if host == "" {
+						host = pluginInfo.Get("obfs-host")
+					}
 					ss["plugin"] = "v2ray-plugin"
 					ss["plugin-opts"] = map[string]any{
-						"mode": pluginInfo.Get("mode"),
-						"host": pluginInfo.Get("host"),
+						"mode": mode,
+						"host": host,
 						"path": pluginInfo.Get("path"),
 						"tls":  strings.Contains(plugin, "tls"),
 					}

clash-meta/listener/inbound/common_test.go

@@ -13,6 +13,7 @@ import (
 	"strconv"
 	"sync"
 	"testing"
+	"time"
 
 	N "github.com/metacubex/mihomo/common/net"
 	"github.com/metacubex/mihomo/common/pool"
@@ -185,6 +186,11 @@ func NewHttpTestTunnel() *TestTunnel {
 			DialContext: func(context.Context, string, string) (net.Conn, error) {
 				return instance, nil
 			},
+			// from http.DefaultTransport
+			MaxIdleConns:          100,
+			IdleConnTimeout:       90 * time.Second,
+			TLSHandshakeTimeout:   10 * time.Second,
+			ExpectContinueTimeout: 1 * time.Second,
 			// for our self-signed cert
 			TLSClientConfig: tlsClientConfig.Clone(),
 			// open http2
@@ -192,6 +198,7 @@ func NewHttpTestTunnel() *TestTunnel {
 		}
 
 		client := http.Client{
+			Timeout:   30 * time.Second,
 			Transport: transport,
 			CheckRedirect: func(req *http.Request, via []*http.Request) error {
 				return http.ErrUseLastResponse

clash-nyanpasu/.github/workflows/ci.yml

@@ -63,7 +63,7 @@ jobs:
           workspaces: 'backend'
           save-if: ${{ github.event_name == 'push' }}
 
-      - uses: pnpm/action-setup@v5
+      - uses: pnpm/action-setup@v6
         name: Install pnpm
         with:
           run_install: false
@@ -155,7 +155,7 @@ jobs:
           workspaces: 'backend'
           save-if: ${{ github.event_name == 'push' }}
 
-      - uses: pnpm/action-setup@v5
+      - uses: pnpm/action-setup@v6
         name: Install pnpm
         with:
           run_install: false
@@ -247,7 +247,7 @@ jobs:
           workspaces: 'backend'
           save-if: ${{ github.event_name == 'push' }}
 
-      - uses: pnpm/action-setup@v5
+      - uses: pnpm/action-setup@v6
         name: Install pnpm
         with:
           run_install: false

clash-nyanpasu/.github/workflows/daily.yml

@@ -18,7 +18,7 @@ jobs:
         with:
           node-version: '24'
 
-      - uses: pnpm/action-setup@v5
+      - uses: pnpm/action-setup@v6
         name: Install pnpm
         with:
           run_install: false
@@ -63,7 +63,7 @@ jobs:
         with:
           node-version: '24'
 
-      - uses: pnpm/action-setup@v5
+      - uses: pnpm/action-setup@v6
         name: Install pnpm
         with:
           run_install: false

clash-nyanpasu/.github/workflows/deps-build-linux.yaml

@@ -84,7 +84,7 @@ jobs:
         with:
           node-version: 24
 
-      - uses: pnpm/action-setup@v5
+      - uses: pnpm/action-setup@v6
         name: Install pnpm
         with:
           run_install: false

clash-nyanpasu/.github/workflows/deps-build-macos.yaml

@@ -73,7 +73,7 @@ jobs:
         with:
           deno-version: v2.x
 
-      - uses: pnpm/action-setup@v5
+      - uses: pnpm/action-setup@v6
         name: Install pnpm
         with:
           run_install: false

clash-nyanpasu/.github/workflows/deps-build-windows-nsis.yaml

@@ -94,7 +94,7 @@ jobs:
         with:
           node-version: 24
 
-      - uses: pnpm/action-setup@v5
+      - uses: pnpm/action-setup@v6
         name: Install pnpm
         with:
           run_install: false

clash-nyanpasu/.github/workflows/deps-create-updater.yaml

@@ -47,7 +47,7 @@ jobs:
         with:
           node-version: 24
 
-      - uses: pnpm/action-setup@v5
+      - uses: pnpm/action-setup@v6
         name: Install pnpm
         with:
           run_install: false

clash-nyanpasu/.github/workflows/macos-aarch64.yaml

@@ -36,7 +36,7 @@ jobs:
         with:
           node-version: '24'
 
-      - uses: pnpm/action-setup@v5
+      - uses: pnpm/action-setup@v6
         name: Install pnpm
         with:
           run_install: false

clash-nyanpasu/.github/workflows/publish.yml

@@ -32,7 +32,7 @@ jobs:
         uses: actions/setup-node@v6
         with:
           node-version: 24
-      - uses: pnpm/action-setup@v5
+      - uses: pnpm/action-setup@v6
         name: Install pnpm
         with:
           run_install: false

clash-nyanpasu/backend/Cargo.lock

@@ -7530,9 +7530,9 @@ checksum = "d3edd4d5d42c92f0a659926464d4cce56b562761267ecf0f469d85b7de384175"
 
 [[package]]
 name = "redb"
-version = "3.1.3"
+version = "4.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4ba239c1c1693315d3cc0e601db3b3965543afbf48c41730fdca2f069f510f4a"
+checksum = "67f7f231ea7b1172b7ac00ccf96b1250f0fb5a16d5585836aa4ebc997df7cbde"
 dependencies = [
  "libc",
 ]

clash-nyanpasu/backend/tauri/Cargo.toml

@@ -144,7 +144,7 @@ notify-debouncer-full = "0.7.0"
 notify = "8.0.0"
 
 # Database
-redb = "3.0.0"
+redb = "4.0.0"
 
 # Logging & Tracing
 log = "0.4.20"

clash-nyanpasu/backend/tauri/gen/schemas/desktop-schema.json

@@ -1400,10 +1400,10 @@
                         "markdownDescription": "This enables all index or metadata related commands without any pre-configured accessible paths."
                       },
                       {
-                        "description": "An empty permission you can use to modify the global scope.",
+                        "description": "An empty permission you can use to modify the global scope.\n\n## Example\n\n```json\n{\n  \"identifier\": \"read-documents\",\n  \"windows\": [\"main\"],\n  \"permissions\": [\n    \"fs:allow-read\",\n    {\n      \"identifier\": \"fs:scope\",\n      \"allow\": [\n        \"$APPDATA/documents/**/*\"\n      ],\n      \"deny\": [\n        \"$APPDATA/documents/secret.txt\"\n      ]\n    }\n  ]\n}\n```\n",
                         "type": "string",
                         "const": "fs:scope",
-                        "markdownDescription": "An empty permission you can use to modify the global scope."
+                        "markdownDescription": "An empty permission you can use to modify the global scope.\n\n## Example\n\n```json\n{\n  \"identifier\": \"read-documents\",\n  \"windows\": [\"main\"],\n  \"permissions\": [\n    \"fs:allow-read\",\n    {\n      \"identifier\": \"fs:scope\",\n      \"allow\": [\n        \"$APPDATA/documents/**/*\"\n      ],\n      \"deny\": [\n        \"$APPDATA/documents/secret.txt\"\n      ]\n    }\n  ]\n}\n```\n"
                       },
                       {
                         "description": "This scope permits access to all files and list content of top level directories in the application folders.",
@@ -2439,10 +2439,10 @@
           "markdownDescription": "Default core plugins set.\n#### This default permission set includes:\n\n- `core:path:default`\n- `core:event:default`\n- `core:window:default`\n- `core:webview:default`\n- `core:app:default`\n- `core:image:default`\n- `core:resources:default`\n- `core:menu:default`\n- `core:tray:default`"
         },
         {
-          "description": "Default permissions for the plugin.\n#### This default permission set includes:\n\n- `allow-version`\n- `allow-name`\n- `allow-tauri-version`\n- `allow-identifier`\n- `allow-bundle-type`",
+          "description": "Default permissions for the plugin.\n#### This default permission set includes:\n\n- `allow-version`\n- `allow-name`\n- `allow-tauri-version`\n- `allow-identifier`\n- `allow-bundle-type`\n- `allow-register-listener`\n- `allow-remove-listener`",
           "type": "string",
           "const": "core:app:default",
-          "markdownDescription": "Default permissions for the plugin.\n#### This default permission set includes:\n\n- `allow-version`\n- `allow-name`\n- `allow-tauri-version`\n- `allow-identifier`\n- `allow-bundle-type`"
+          "markdownDescription": "Default permissions for the plugin.\n#### This default permission set includes:\n\n- `allow-version`\n- `allow-name`\n- `allow-tauri-version`\n- `allow-identifier`\n- `allow-bundle-type`\n- `allow-register-listener`\n- `allow-remove-listener`"
         },
         {
           "description": "Enables the app_hide command without any pre-configured scope.",
@@ -2486,12 +2486,24 @@
           "const": "core:app:allow-name",
           "markdownDescription": "Enables the name command without any pre-configured scope."
         },
+        {
+          "description": "Enables the register_listener command without any pre-configured scope.",
+          "type": "string",
+          "const": "core:app:allow-register-listener",
+          "markdownDescription": "Enables the register_listener command without any pre-configured scope."
+        },
         {
           "description": "Enables the remove_data_store command without any pre-configured scope.",
           "type": "string",
           "const": "core:app:allow-remove-data-store",
           "markdownDescription": "Enables the remove_data_store command without any pre-configured scope."
         },
+        {
+          "description": "Enables the remove_listener command without any pre-configured scope.",
+          "type": "string",
+          "const": "core:app:allow-remove-listener",
+          "markdownDescription": "Enables the remove_listener command without any pre-configured scope."
+        },
         {
           "description": "Enables the set_app_theme command without any pre-configured scope.",
           "type": "string",
@@ -2558,12 +2570,24 @@
           "const": "core:app:deny-name",
           "markdownDescription": "Denies the name command without any pre-configured scope."
         },
+        {
+          "description": "Denies the register_listener command without any pre-configured scope.",
+          "type": "string",
+          "const": "core:app:deny-register-listener",
+          "markdownDescription": "Denies the register_listener command without any pre-configured scope."
+        },
         {
           "description": "Denies the remove_data_store command without any pre-configured scope.",
           "type": "string",
           "const": "core:app:deny-remove-data-store",
           "markdownDescription": "Denies the remove_data_store command without any pre-configured scope."
         },
+        {
+          "description": "Denies the remove_listener command without any pre-configured scope.",
+          "type": "string",
+          "const": "core:app:deny-remove-listener",
+          "markdownDescription": "Denies the remove_listener command without any pre-configured scope."
+        },
         {
           "description": "Denies the set_app_theme command without any pre-configured scope.",
           "type": "string",
@@ -5703,10 +5727,10 @@
           "markdownDescription": "This enables all index or metadata related commands without any pre-configured accessible paths."
         },
         {
-          "description": "An empty permission you can use to modify the global scope.",
+          "description": "An empty permission you can use to modify the global scope.\n\n## Example\n\n```json\n{\n  \"identifier\": \"read-documents\",\n  \"windows\": [\"main\"],\n  \"permissions\": [\n    \"fs:allow-read\",\n    {\n      \"identifier\": \"fs:scope\",\n      \"allow\": [\n        \"$APPDATA/documents/**/*\"\n      ],\n      \"deny\": [\n        \"$APPDATA/documents/secret.txt\"\n      ]\n    }\n  ]\n}\n```\n",
           "type": "string",
           "const": "fs:scope",
-          "markdownDescription": "An empty permission you can use to modify the global scope."
+          "markdownDescription": "An empty permission you can use to modify the global scope.\n\n## Example\n\n```json\n{\n  \"identifier\": \"read-documents\",\n  \"windows\": [\"main\"],\n  \"permissions\": [\n    \"fs:allow-read\",\n    {\n      \"identifier\": \"fs:scope\",\n      \"allow\": [\n        \"$APPDATA/documents/**/*\"\n      ],\n      \"deny\": [\n        \"$APPDATA/documents/secret.txt\"\n      ]\n    }\n  ]\n}\n```\n"
         },
         {
           "description": "This scope permits access to all files and list content of top level directories in the application folders.",

clash-nyanpasu/backend/tauri/gen/schemas/windows-schema.json

@@ -1400,10 +1400,10 @@
                         "markdownDescription": "This enables all index or metadata related commands without any pre-configured accessible paths."
                       },
                       {
-                        "description": "An empty permission you can use to modify the global scope.",
+                        "description": "An empty permission you can use to modify the global scope.\n\n## Example\n\n```json\n{\n  \"identifier\": \"read-documents\",\n  \"windows\": [\"main\"],\n  \"permissions\": [\n    \"fs:allow-read\",\n    {\n      \"identifier\": \"fs:scope\",\n      \"allow\": [\n        \"$APPDATA/documents/**/*\"\n      ],\n      \"deny\": [\n        \"$APPDATA/documents/secret.txt\"\n      ]\n    }\n  ]\n}\n```\n",
                         "type": "string",
                         "const": "fs:scope",
-                        "markdownDescription": "An empty permission you can use to modify the global scope."
+                        "markdownDescription": "An empty permission you can use to modify the global scope.\n\n## Example\n\n```json\n{\n  \"identifier\": \"read-documents\",\n  \"windows\": [\"main\"],\n  \"permissions\": [\n    \"fs:allow-read\",\n    {\n      \"identifier\": \"fs:scope\",\n      \"allow\": [\n        \"$APPDATA/documents/**/*\"\n      ],\n      \"deny\": [\n        \"$APPDATA/documents/secret.txt\"\n      ]\n    }\n  ]\n}\n```\n"
                       },
                       {
                         "description": "This scope permits access to all files and list content of top level directories in the application folders.",
@@ -2439,10 +2439,10 @@
           "markdownDescription": "Default core plugins set.\n#### This default permission set includes:\n\n- `core:path:default`\n- `core:event:default`\n- `core:window:default`\n- `core:webview:default`\n- `core:app:default`\n- `core:image:default`\n- `core:resources:default`\n- `core:menu:default`\n- `core:tray:default`"
         },
         {
-          "description": "Default permissions for the plugin.\n#### This default permission set includes:\n\n- `allow-version`\n- `allow-name`\n- `allow-tauri-version`\n- `allow-identifier`\n- `allow-bundle-type`",
+          "description": "Default permissions for the plugin.\n#### This default permission set includes:\n\n- `allow-version`\n- `allow-name`\n- `allow-tauri-version`\n- `allow-identifier`\n- `allow-bundle-type`\n- `allow-register-listener`\n- `allow-remove-listener`",
           "type": "string",
           "const": "core:app:default",
-          "markdownDescription": "Default permissions for the plugin.\n#### This default permission set includes:\n\n- `allow-version`\n- `allow-name`\n- `allow-tauri-version`\n- `allow-identifier`\n- `allow-bundle-type`"
+          "markdownDescription": "Default permissions for the plugin.\n#### This default permission set includes:\n\n- `allow-version`\n- `allow-name`\n- `allow-tauri-version`\n- `allow-identifier`\n- `allow-bundle-type`\n- `allow-register-listener`\n- `allow-remove-listener`"
         },
         {
           "description": "Enables the app_hide command without any pre-configured scope.",
@@ -2486,12 +2486,24 @@
           "const": "core:app:allow-name",
           "markdownDescription": "Enables the name command without any pre-configured scope."
         },
+        {
+          "description": "Enables the register_listener command without any pre-configured scope.",
+          "type": "string",
+          "const": "core:app:allow-register-listener",
+          "markdownDescription": "Enables the register_listener command without any pre-configured scope."
+        },
         {
           "description": "Enables the remove_data_store command without any pre-configured scope.",
           "type": "string",
           "const": "core:app:allow-remove-data-store",
           "markdownDescription": "Enables the remove_data_store command without any pre-configured scope."
         },
+        {
+          "description": "Enables the remove_listener command without any pre-configured scope.",
+          "type": "string",
+          "const": "core:app:allow-remove-listener",
+          "markdownDescription": "Enables the remove_listener command without any pre-configured scope."
+        },
         {
           "description": "Enables the set_app_theme command without any pre-configured scope.",
           "type": "string",
@@ -2558,12 +2570,24 @@
           "const": "core:app:deny-name",
           "markdownDescription": "Denies the name command without any pre-configured scope."
         },
+        {
+          "description": "Denies the register_listener command without any pre-configured scope.",
+          "type": "string",
+          "const": "core:app:deny-register-listener",
+          "markdownDescription": "Denies the register_listener command without any pre-configured scope."
+        },
         {
           "description": "Denies the remove_data_store command without any pre-configured scope.",
           "type": "string",
           "const": "core:app:deny-remove-data-store",
           "markdownDescription": "Denies the remove_data_store command without any pre-configured scope."
         },
+        {
+          "description": "Denies the remove_listener command without any pre-configured scope.",
+          "type": "string",
+          "const": "core:app:deny-remove-listener",
+          "markdownDescription": "Denies the remove_listener command without any pre-configured scope."
+        },
         {
           "description": "Denies the set_app_theme command without any pre-configured scope.",
           "type": "string",
@@ -5703,10 +5727,10 @@
           "markdownDescription": "This enables all index or metadata related commands without any pre-configured accessible paths."
         },
         {
-          "description": "An empty permission you can use to modify the global scope.",
+          "description": "An empty permission you can use to modify the global scope.\n\n## Example\n\n```json\n{\n  \"identifier\": \"read-documents\",\n  \"windows\": [\"main\"],\n  \"permissions\": [\n    \"fs:allow-read\",\n    {\n      \"identifier\": \"fs:scope\",\n      \"allow\": [\n        \"$APPDATA/documents/**/*\"\n      ],\n      \"deny\": [\n        \"$APPDATA/documents/secret.txt\"\n      ]\n    }\n  ]\n}\n```\n",
           "type": "string",
           "const": "fs:scope",
-          "markdownDescription": "An empty permission you can use to modify the global scope."
+          "markdownDescription": "An empty permission you can use to modify the global scope.\n\n## Example\n\n```json\n{\n  \"identifier\": \"read-documents\",\n  \"windows\": [\"main\"],\n  \"permissions\": [\n    \"fs:allow-read\",\n    {\n      \"identifier\": \"fs:scope\",\n      \"allow\": [\n        \"$APPDATA/documents/**/*\"\n      ],\n      \"deny\": [\n        \"$APPDATA/documents/secret.txt\"\n      ]\n    }\n  ]\n}\n```\n"
         },
         {
           "description": "This scope permits access to all files and list content of top level directories in the application folders.",

clash-nyanpasu/frontend/interface/src/provider/clash-ws-provider.tsx

@@ -45,6 +45,59 @@ const createPersistedState = (key: string, defaultValue: boolean) => {
   return { getStoredValue, setStoredValue }
 }
 
+const MAX_REASONABLE_MEMORY_BYTES = 16 * 1024 ** 4 // 16 TB
+
+const toNonNegativeFiniteNumber = (value: unknown): number | null => {
+  const parsed =
+    typeof value === 'number'
+      ? value
+      : typeof value === 'string'
+        ? Number(value)
+        : NaN
+
+  if (!Number.isFinite(parsed) || parsed < 0) {
+    return null
+  }
+
+  return parsed
+}
+
+const normalizeClashMemory = (raw: unknown): ClashMemory | null => {
+  if (typeof raw !== 'object' || raw === null) {
+    return null
+  }
+
+  const data = raw as Record<string, unknown>
+  let inuse = toNonNegativeFiniteNumber(data.inuse)
+  const oslimit = toNonNegativeFiniteNumber(data.oslimit) ?? 0
+
+  if (inuse === null) {
+    return null
+  }
+
+  // Keep memory values in bytes and normalize obvious unit mismatches.
+  if (oslimit > 0 && inuse > oslimit * 2) {
+    if (inuse / 8 <= oslimit * 2) {
+      inuse /= 8
+    }
+
+    while (inuse > oslimit * 2 && inuse % 1024 === 0) {
+      inuse /= 1024
+    }
+
+    if (inuse > oslimit * 2) {
+      inuse = oslimit
+    }
+  } else if (oslimit <= 0 && inuse > MAX_REASONABLE_MEMORY_BYTES) {
+    return null
+  }
+
+  return {
+    inuse: Math.trunc(inuse),
+    oslimit: Math.trunc(oslimit),
+  }
+}
+
 const ClashWSContext = createContext<{
   recordLogs: boolean
   setRecordLogs: (value: boolean) => void
@@ -142,7 +195,12 @@ export const ClashWSProvider = ({ children }: PropsWithChildren) => {
       return
     }
 
-    const data = JSON.parse(memoryWS.latestMessage?.data) as ClashMemory
+    const rawData = JSON.parse(memoryWS.latestMessage?.data ?? 'null')
+    const data = normalizeClashMemory(rawData)
+
+    if (!data) {
+      return
+    }
 
     const currentData = queryClient.getQueryData([
       CLASH_MEMORY_QUERY_KEY,

clash-nyanpasu/frontend/nyanpasu/src/assets/styles/tailwind.css

@@ -9,6 +9,14 @@
 
 @tailwind utilities;
 
+/* do not use layer */
+:where(code, kbd, pre, samp) {
+  font-family: var(--font-mono);
+  font-feature-settings:
+    'liga' 0,
+    'calt' 0;
+}
+
 @theme {
   --font-mono:
     'Cascadia Mono', 'Fira Code', ui-monospace, SFMono-Regular, Menlo, Monaco,

clash-nyanpasu/frontend/nyanpasu/src/components/profiles/profile-item.tsx

@@ -36,6 +36,8 @@ import { ProfileDialog } from './profile-dialog'
 import { GlobalUpdatePendingContext } from './provider'
 import { ClashProfile } from './utils'
 
+const clampPercentage = (value: number) => Math.min(100, Math.max(0, value))
+
 export interface ProfileItemProps {
   item: ProfileQueryResultItem
   selected?: boolean
@@ -75,11 +77,13 @@ export const ProfileItem = memo(function ProfileItem({
     if ('extra' in item && item.extra) {
       const { download, upload, total: t } = item.extra
 
-      total = t
+      total = t ?? 0
 
-      used = download + upload
+      used = (download ?? 0) + (upload ?? 0)
 
-      progress = (used / (total || 1)) * 100
+      if (total > 0) {
+        progress = clampPercentage((used / total) * 100)
+      }
     }
 
     return { progress, total, used }

clash-nyanpasu/frontend/nyanpasu/src/components/providers/proxies-provider-traffic.tsx

@@ -2,6 +2,8 @@ import parseTraffic from '@/utils/parse-traffic'
 import { LinearProgress, Tooltip } from '@mui/material'
 import { ProxiesProviderProps } from './proxies-provider'
 
+const clampPercentage = (value: number) => Math.min(100, Math.max(0, value))
+
 export const ProxiesProviderTraffic = ({ provider }: ProxiesProviderProps) => {
   const calc = () => {
     let progress = 0
@@ -15,7 +17,9 @@ export const ProxiesProviderTraffic = ({ provider }: ProxiesProviderProps) => {
 
       used = (download ?? 0) + (upload ?? 0)
 
-      progress = (used / (total ?? 0)) * 100
+      if (total > 0) {
+        progress = clampPercentage((used / total) * 100)
+      }
     }
 
     return { progress, total, used }

clash-nyanpasu/frontend/nyanpasu/src/components/window/system-titlebar.tsx

@@ -0,0 +1,55 @@
+import { ComponentProps } from 'react'
+import useWindowMaximized from '@/hooks/use-window-maximized'
+import { cn } from '@nyanpasu/ui'
+import WindowControl from './window-control'
+import WindowHeader from './window-header'
+
+export function DefaultHeader({
+  className,
+  children,
+  ...props
+}: ComponentProps<'div'>) {
+  return (
+    <WindowHeader
+      className={cn('items-center justify-between px-3', className)}
+      data-slot="app-header"
+      {...props}
+    >
+      <div className="flex items-center gap-2" data-tauri-drag-region>
+        {children}
+      </div>
+
+      <WindowControl />
+    </WindowHeader>
+  )
+}
+
+export function MacOSHeader({ className, ...props }: ComponentProps<'div'>) {
+  return (
+    <WindowHeader
+      className={cn('items-center justify-center px-3', className)}
+      data-slot="app-header-macos"
+      {...props}
+    />
+  )
+}
+
+export function MacOSHeaderLeft({
+  className,
+  ...props
+}: ComponentProps<'div'>) {
+  const { isMaximized } = useWindowMaximized()
+
+  return (
+    <div
+      className={cn(
+        'absolute left-22 hidden items-center md:flex',
+        isMaximized ? 'left-2' : 'left-22',
+        className,
+      )}
+      data-slot="app-header-macos-left"
+      data-tauri-drag-region
+      {...props}
+    />
+  )
+}

clash-nyanpasu/frontend/nyanpasu/src/pages/(editor)/editor/_modules/header.tsx

@@ -1,7 +1,8 @@
 import { ComponentProps } from 'react'
+import { DefaultHeader, MacOSHeader } from '@/components/window/system-titlebar'
 import WindowControl from '@/components/window/window-control'
-import WindowHeader from '@/components/window/window-header'
 import WindowTitle from '@/components/window/window-title'
+import { isMacOS } from '@/consts'
 
 const APP_NAME = 'Clash Nyanpasu - Editor'
 
@@ -20,20 +21,18 @@ const Title = () => {
 }
 
 export default function Header({
-  beforeClose,
-}: {
+  className,
+  ...props
+}: ComponentProps<'div'> & {
   beforeClose?: ComponentProps<typeof WindowControl>['beforeClose']
 }) {
-  return (
-    <WindowHeader
-      className="shrink-0 items-center justify-between px-3"
-      data-slot="window-control"
-    >
-      <div className="flex items-center gap-2" data-tauri-drag-region>
-        <Title />
-      </div>
-
-      <WindowControl hiddenAlwaysOnTop beforeClose={beforeClose} />
-    </WindowHeader>
+  return isMacOS ? (
+    <MacOSHeader className={className} {...props}>
+      <Title />
+    </MacOSHeader>
+  ) : (
+    <DefaultHeader className={className} {...props}>
+      <Title />
+    </DefaultHeader>
   )
 }

clash-nyanpasu/frontend/nyanpasu/src/pages/(main)/_modules/header.tsx

@@ -1,10 +1,11 @@
 import { ComponentProps } from 'react'
-import WindowControl from '@/components/window/window-control'
-import WindowHeader from '@/components/window/window-header'
+import {
+  DefaultHeader,
+  MacOSHeader,
+  MacOSHeaderLeft,
+} from '@/components/window/system-titlebar'
 import WindowTitle from '@/components/window/window-title'
 import { isMacOS } from '@/consts'
-import useWindowMaximized from '@/hooks/use-window-maximized'
-import { cn } from '@nyanpasu/ui'
 import HeaderMenu from './header-menu'
 
 const APP_NAME = 'Clash Nyanpasu'
@@ -23,51 +24,19 @@ const Title = () => {
   )
 }
 
-export function DefaultHeader({ className, ...props }: ComponentProps<'div'>) {
-  return (
-    <WindowHeader
-      className={cn('items-center justify-between px-3', className)}
-      data-slot="app-header"
-      {...props}
-    >
-      <div className="flex items-center gap-2" data-tauri-drag-region>
-        <Title />
-        <HeaderMenu className="hidden md:flex" />
-      </div>
-
-      <WindowControl />
-    </WindowHeader>
-  )
-}
-
-export function MacOSHeader({ className, ...props }: ComponentProps<'div'>) {
-  const { isMaximized } = useWindowMaximized()
-
-  return (
-    <WindowHeader
-      className={cn('items-center justify-center px-3', className)}
-      data-slot="app-header"
-      {...props}
-    >
-      <div
-        className={cn(
-          'absolute left-22 hidden items-center md:flex',
-          isMaximized ? 'left-2' : 'left-22',
-        )}
-        data-tauri-drag-region
-      >
-        <HeaderMenu />
-      </div>
-
-      <Title />
-    </WindowHeader>
-  )
-}
-
 export default function Header({ className, ...props }: ComponentProps<'div'>) {
   return isMacOS ? (
-    <MacOSHeader className={className} {...props} />
+    <MacOSHeader className={className} {...props}>
+      <MacOSHeaderLeft>
+        <HeaderMenu />
+      </MacOSHeaderLeft>
+
+      <Title />
+    </MacOSHeader>
   ) : (
-    <DefaultHeader className={className} {...props} />
+    <DefaultHeader className={className} {...props}>
+      <Title />
+      <HeaderMenu className="hidden md:flex" />
+    </DefaultHeader>
   )
 }

clash-nyanpasu/frontend/nyanpasu/src/pages/(main)/main/profiles/$type/detail/_modules/subscription-card.tsx

@@ -23,6 +23,8 @@ import {
 } from '@nyanpasu/interface'
 import UpdateOptionEditor from './update-option-editor'
 
+const clampPercentage = (value: number) => Math.min(100, Math.max(0, value))
+
 export const SubscriptionCard = ({ profile }: { profile: RemoteProfile }) => {
   const { update } = useProfile()
 
@@ -38,11 +40,13 @@ export const SubscriptionCard = ({ profile }: { profile: RemoteProfile }) => {
     ) {
       const { download, upload, total: t } = profile.extra
 
-      total = t
+      total = t ?? 0
 
-      used = download + upload
+      used = (download ?? 0) + (upload ?? 0)
 
-      progress = (used / (total || 1)) * 100
+      if (total > 0) {
+        progress = clampPercentage((used / total) * 100)
+      }
     }
 
     return { progress, total, used }

clash-nyanpasu/frontend/nyanpasu/src/pages/(main)/main/providers/_modules/use-proxies-subscription.tsx

@@ -1,6 +1,8 @@
 import { useMemo } from 'react'
 import { ClashProviderProxies } from '@nyanpasu/interface'
 
+const clampPercentage = (value: number) => Math.min(100, Math.max(0, value))
+
 export const useProxiesSubscription = (data: ClashProviderProxies) => {
   return useMemo(() => {
     let progress = 0
@@ -25,7 +27,9 @@ export const useProxiesSubscription = (data: ClashProviderProxies) => {
 
       used = download + upload
 
-      progress = (used / (total || 1)) * 100
+      if (total > 0) {
+        progress = clampPercentage((used / total) * 100)
+      }
     }
 
     return {

clash-nyanpasu/manifest/version.json

@@ -2,10 +2,10 @@
   "manifest_version": 1,
   "latest": {
     "mihomo": "v1.19.23",
-    "mihomo_alpha": "Not Found",
+    "mihomo_alpha": "alpha-839bb39",
     "clash_rs": "v0.9.7",
     "clash_premium": "2023-09-05-gdcc8d87",
-    "clash_rs_alpha": "0.9.7-alpha+sha.1b5afe6"
+    "clash_rs_alpha": "0.9.7-alpha+sha.dd693bf"
   },
   "arch_template": {
     "mihomo": {
@@ -69,5 +69,5 @@
       "linux-armv7hf": "clash-rs-armv7-unknown-linux-gnueabihf"
     }
   },
-  "updated_at": "2026-04-13T22:29:12.908Z"
+  "updated_at": "2026-04-14T22:29:27.706Z"
 }

clash-nyanpasu/pnpm-lock.yaml

@@ -612,8 +612,8 @@ importers:
         specifier: 2.26.22
         version: 2.26.22
       undici:
-        specifier: 7.24.7
-        version: 7.24.7
+        specifier: 8.1.0
+        version: 8.1.0
       yargs:
         specifier: 18.0.0
         version: 18.0.0
@@ -7761,9 +7761,9 @@ packages:
     resolution: {integrity: sha512-raqeBD6NQK4SkWhQzeYKd1KmIG6dllBOTt55Rmkt4HtI9mwdWtJljnrXjAFUBLTSN67HWrOIZ3EPF4kjUw80Bg==}
     engines: {node: '>=14.0'}
 
-  undici@7.24.7:
-    resolution: {integrity: sha512-H/nlJ/h0ggGC+uRL3ovD+G0i4bqhvsDOpbDv7At5eFLlj2b41L8QliGbnl2H7SnDiYhENphh1tQFJZf+MyfLsQ==}
-    engines: {node: '>=20.18.1'}
+  undici@8.1.0:
+    resolution: {integrity: sha512-E9MkTS4xXLnRPYqxH2e6Hr2/49e7WFDKczKcCaFH4VaZs2iNvHMqeIkyUAD9vM8kujy9TjVrRlQ5KkdEJxB2pw==}
+    engines: {node: '>=22.19.0'}
 
   unicode-canonical-property-names-ecmascript@2.0.1:
     resolution: {integrity: sha512-dA8WbNeb2a6oQzAQ55YlT5vQAWGV9WXOsi3SskE3bcCdM0P4SDd+24zS/OCacdRq5BkdsRj9q3Pg6YyQoxIGqg==}
@@ -15612,7 +15612,7 @@ snapshots:
     dependencies:
       '@fastify/busboy': 2.1.1
 
-  undici@7.24.7: {}
+  undici@8.1.0: {}
 
   unicode-canonical-property-names-ecmascript@2.0.1: {}
 

clash-nyanpasu/scripts/package.json

@@ -24,7 +24,7 @@
     "picocolors": "1.1.1",
     "tar": "7.5.13",
     "telegram": "2.26.22",
-    "undici": "7.24.7",
+    "undici": "8.1.0",
     "yargs": "18.0.0"
   }
 }

geoip/.github/workflows/build.yml

@@ -113,10 +113,7 @@ jobs:
           rm -rf ./output/{clash,dat,mrs,nginx,srs,surge,text}
 
       - name: Upload files to GitHub release
-        uses: svenstaro/upload-release-action@v2
-        with:
-          repo_token: ${{ secrets.GITHUB_TOKEN }}
-          file_glob: true
-          file: ./output/*
-          release_name: ${{ env.RELEASE_NAME }}
-          tag: ${{ env.TAG_NAME }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          gh release create ${{ env.TAG_NAME }} --title "${{ env.RELEASE_NAME }}" ./output/*

lede/target/linux/mediatek/patches-6.12/210-PM-devfreq-mtk-cci-use-devres-for-resource-managemen.patch

@@ -0,0 +1,241 @@
+From b61fcc3c7f95734e14741d8787fc9eb69b8437d4 Mon Sep 17 00:00:00 2001
+From: Daniel Golle <daniel@makrotopia.org>
+Date: Sat, 11 Apr 2026 22:47:15 +0100
+Subject: [PATCH 1/2] PM / devfreq: mtk-cci: use devres for resource management
+ in probe
+
+Convert mtk_ccifreq_probe() to use devm-managed resource cleanup
+instead of manual goto-based error handling.
+
+This pattern (devm_add_action_or_reset with a regulator disable
+callback) is well-established in the kernel, used by drivers such as
+ads7846, max6639 and others.
+
+Signed-off-by: Daniel Golle <daniel@makrotopia.org>
+---
+ drivers/devfreq/mtk-cci-devfreq.c | 150 +++++++++++++++---------------
+ 1 file changed, 73 insertions(+), 77 deletions(-)
+
+--- a/drivers/devfreq/mtk-cci-devfreq.c
++++ b/drivers/devfreq/mtk-cci-devfreq.c
+@@ -246,6 +246,21 @@ static struct devfreq_dev_profile mtk_cc
+ 	.target = mtk_ccifreq_target,
+ };
+ 
++static void mtk_ccifreq_regulator_disable(void *data)
++{
++	regulator_disable(data);
++}
++
++static void mtk_ccifreq_clk_disable_unprepare(void *data)
++{
++	clk_disable_unprepare(data);
++}
++
++static void mtk_ccifreq_opp_of_remove_table(void *data)
++{
++	dev_pm_opp_of_remove_table(data);
++}
++
+ static int mtk_ccifreq_probe(struct platform_device *pdev)
+ {
+ 	struct device *dev = &pdev->dev;
+@@ -266,44 +281,47 @@ static int mtk_ccifreq_probe(struct plat
+ 	platform_set_drvdata(pdev, drv);
+ 
+ 	drv->cci_clk = devm_clk_get(dev, "cci");
+-	if (IS_ERR(drv->cci_clk)) {
+-		ret = PTR_ERR(drv->cci_clk);
+-		return dev_err_probe(dev, ret, "failed to get cci clk\n");
+-	}
++	if (IS_ERR(drv->cci_clk))
++		return dev_err_probe(dev, PTR_ERR(drv->cci_clk),
++				     "failed to get cci clk\n");
+ 
+ 	drv->inter_clk = devm_clk_get(dev, "intermediate");
+-	if (IS_ERR(drv->inter_clk)) {
+-		ret = PTR_ERR(drv->inter_clk);
+-		return dev_err_probe(dev, ret,
++	if (IS_ERR(drv->inter_clk))
++		return dev_err_probe(dev, PTR_ERR(drv->inter_clk),
+ 				     "failed to get intermediate clk\n");
+-	}
+ 
+ 	drv->proc_reg = devm_regulator_get_optional(dev, "proc");
+-	if (IS_ERR(drv->proc_reg)) {
+-		ret = PTR_ERR(drv->proc_reg);
+-		return dev_err_probe(dev, ret,
++	if (IS_ERR(drv->proc_reg))
++		return dev_err_probe(dev, PTR_ERR(drv->proc_reg),
+ 				     "failed to get proc regulator\n");
+-	}
+ 
+ 	ret = regulator_enable(drv->proc_reg);
+-	if (ret) {
+-		dev_err(dev, "failed to enable proc regulator\n");
++	if (ret)
++		return dev_err_probe(dev, ret,
++				     "failed to enable proc regulator\n");
++
++	ret = devm_add_action_or_reset(dev, mtk_ccifreq_regulator_disable,
++				       drv->proc_reg);
++	if (ret)
+ 		return ret;
+-	}
+ 
+ 	drv->sram_reg = devm_regulator_get_optional(dev, "sram");
+ 	if (IS_ERR(drv->sram_reg)) {
+-		ret = PTR_ERR(drv->sram_reg);
+-		if (ret == -EPROBE_DEFER)
+-			goto out_free_resources;
++		if (PTR_ERR(drv->sram_reg) == -EPROBE_DEFER)
++			return -EPROBE_DEFER;
+ 
+ 		drv->sram_reg = NULL;
+ 	} else {
+ 		ret = regulator_enable(drv->sram_reg);
+-		if (ret) {
+-			dev_err(dev, "failed to enable sram regulator\n");
+-			goto out_free_resources;
+-		}
++		if (ret)
++			return dev_err_probe(dev, ret,
++					     "failed to enable sram regulator\n");
++
++		ret = devm_add_action_or_reset(dev,
++					       mtk_ccifreq_regulator_disable,
++					       drv->sram_reg);
++		if (ret)
++			return ret;
+ 	}
+ 
+ 	/*
+@@ -317,31 +335,36 @@ static int mtk_ccifreq_probe(struct plat
+ 
+ 	ret = clk_prepare_enable(drv->cci_clk);
+ 	if (ret)
+-		goto out_free_resources;
++		return ret;
++
++	ret = devm_add_action_or_reset(dev, mtk_ccifreq_clk_disable_unprepare,
++				       drv->cci_clk);
++	if (ret)
++		return ret;
+ 
+ 	ret = dev_pm_opp_of_add_table(dev);
+-	if (ret) {
+-		dev_err(dev, "failed to add opp table: %d\n", ret);
+-		goto out_disable_cci_clk;
+-	}
++	if (ret)
++		return dev_err_probe(dev, ret, "failed to add opp table\n");
++
++	ret = devm_add_action_or_reset(dev, mtk_ccifreq_opp_of_remove_table,
++				       dev);
++	if (ret)
++		return ret;
+ 
+ 	rate = clk_get_rate(drv->inter_clk);
+ 	opp = dev_pm_opp_find_freq_ceil(dev, &rate);
+-	if (IS_ERR(opp)) {
+-		ret = PTR_ERR(opp);
+-		dev_err(dev, "failed to get intermediate opp: %d\n", ret);
+-		goto out_remove_opp_table;
+-	}
++	if (IS_ERR(opp))
++		return dev_err_probe(dev, PTR_ERR(opp),
++				     "failed to get intermediate opp\n");
++
+ 	drv->inter_voltage = dev_pm_opp_get_voltage(opp);
+ 	dev_pm_opp_put(opp);
+ 
+ 	rate = U32_MAX;
+ 	opp = dev_pm_opp_find_freq_floor(drv->dev, &rate);
+-	if (IS_ERR(opp)) {
+-		dev_err(dev, "failed to get opp\n");
+-		ret = PTR_ERR(opp);
+-		goto out_remove_opp_table;
+-	}
++	if (IS_ERR(opp))
++		return dev_err_probe(dev, PTR_ERR(opp),
++				     "failed to get opp\n");
+ 
+ 	opp_volt = dev_pm_opp_get_voltage(opp);
+ 	dev_pm_opp_put(opp);
+@@ -349,63 +372,36 @@ static int mtk_ccifreq_probe(struct plat
+ 	if (ret) {
+ 		dev_err(dev, "failed to scale to highest voltage %lu in proc_reg\n",
+ 			opp_volt);
+-		goto out_remove_opp_table;
++		return ret;
+ 	}
+ 
+ 	passive_data = devm_kzalloc(dev, sizeof(*passive_data), GFP_KERNEL);
+-	if (!passive_data) {
+-		ret = -ENOMEM;
+-		goto out_remove_opp_table;
+-	}
++	if (!passive_data)
++		return -ENOMEM;
+ 
+ 	passive_data->parent_type = CPUFREQ_PARENT_DEV;
+ 	drv->devfreq = devm_devfreq_add_device(dev, &mtk_ccifreq_profile,
+ 					       DEVFREQ_GOV_PASSIVE,
+ 					       passive_data);
+-	if (IS_ERR(drv->devfreq)) {
+-		ret = -EPROBE_DEFER;
+-		dev_err(dev, "failed to add devfreq device: %ld\n",
+-			PTR_ERR(drv->devfreq));
+-		goto out_remove_opp_table;
+-	}
++	if (IS_ERR(drv->devfreq))
++		return dev_err_probe(dev, -EPROBE_DEFER,
++				     "failed to add devfreq device: %ld\n",
++				     PTR_ERR(drv->devfreq));
+ 
+ 	drv->opp_nb.notifier_call = mtk_ccifreq_opp_notifier;
+ 	ret = dev_pm_opp_register_notifier(dev, &drv->opp_nb);
+-	if (ret) {
+-		dev_err(dev, "failed to register opp notifier: %d\n", ret);
+-		goto out_remove_opp_table;
+-	}
+-	return 0;
+-
+-out_remove_opp_table:
+-	dev_pm_opp_of_remove_table(dev);
+-
+-out_disable_cci_clk:
+-	clk_disable_unprepare(drv->cci_clk);
+-
+-out_free_resources:
+-	if (regulator_is_enabled(drv->proc_reg))
+-		regulator_disable(drv->proc_reg);
+-	if (!IS_ERR_OR_NULL(drv->sram_reg) &&
+-	    regulator_is_enabled(drv->sram_reg))
+-		regulator_disable(drv->sram_reg);
++	if (ret)
++		return dev_err_probe(dev, ret,
++				     "failed to register opp notifier\n");
+ 
+-	return ret;
++	return 0;
+ }
+ 
+ static void mtk_ccifreq_remove(struct platform_device *pdev)
+ {
+-	struct device *dev = &pdev->dev;
+-	struct mtk_ccifreq_drv *drv;
+-
+-	drv = platform_get_drvdata(pdev);
++	struct mtk_ccifreq_drv *drv = platform_get_drvdata(pdev);
+ 
+-	dev_pm_opp_unregister_notifier(dev, &drv->opp_nb);
+-	dev_pm_opp_of_remove_table(dev);
+-	clk_disable_unprepare(drv->cci_clk);
+-	regulator_disable(drv->proc_reg);
+-	if (drv->sram_reg)
+-		regulator_disable(drv->sram_reg);
++	dev_pm_opp_unregister_notifier(&pdev->dev, &drv->opp_nb);
+ }
+ 
+ static const struct mtk_ccifreq_platform_data mt8183_platform_data = {

lede/target/linux/mediatek/patches-6.12/211-PM-devfreq-mtk-cci-check-cpufreq-availability-early.patch

@@ -0,0 +1,53 @@
+From b19968e432fe2ebe3af4bc9190923edb70b6aeee Mon Sep 17 00:00:00 2001
+From: Daniel Golle <daniel@makrotopia.org>
+Date: Mon, 13 Apr 2026 15:22:05 +0100
+Subject: [PATCH 2/2] PM / devfreq: mtk-cci: check cpufreq availability early
+
+Check spufreq availablility early at probe so -EPROBE_DEFER is emitted
+before touching any regulators.
+
+Signed-off-by: Daniel Golle <daniel@makrotopia.org>
+---
+ drivers/devfreq/mtk-cci-devfreq.c | 18 +++++++++++++++++-
+ 1 file changed, 17 insertions(+), 1 deletion(-)
+
+--- a/drivers/devfreq/mtk-cci-devfreq.c
++++ b/drivers/devfreq/mtk-cci-devfreq.c
+@@ -4,6 +4,7 @@
+  */
+ 
+ #include <linux/clk.h>
++#include <linux/cpufreq.h>
+ #include <linux/devfreq.h>
+ #include <linux/minmax.h>
+ #include <linux/module.h>
+@@ -263,13 +264,28 @@ static void mtk_ccifreq_opp_of_remove_ta
+ 
+ static int mtk_ccifreq_probe(struct platform_device *pdev)
+ {
++	struct devfreq_passive_data *passive_data;
+ 	struct device *dev = &pdev->dev;
++	struct cpufreq_policy *policy;
+ 	struct mtk_ccifreq_drv *drv;
+-	struct devfreq_passive_data *passive_data;
+ 	struct dev_pm_opp *opp;
+ 	unsigned long rate, opp_volt;
+ 	int ret;
+ 
++	/*
++	 * Check if cpufreq is available before touching any regulators.
++	 * The passive devfreq governor needs cpufreq as its parent and
++	 * will return -EPROBE_DEFER if it is not yet registered. If we
++	 * enable the proc regulator (CPU core power) before this check,
++	 * the subsequent probe failure causes devres to disable that
++	 * regulator, potentially cutting CPU core voltage and hanging
++	 * the system.
++	 */
++	policy = cpufreq_cpu_get(0);
++	if (!policy)
++		return -EPROBE_DEFER;
++	cpufreq_cpu_put(policy);
++
+ 	drv = devm_kzalloc(dev, sizeof(*drv), GFP_KERNEL);
+ 	if (!drv)
+ 		return -ENOMEM;

mihomo/common/convert/converter.go

@@ -453,10 +453,18 @@ func ConvertsV2Ray(buf []byte) ([]map[string]any, error) {
 						"host": pluginInfo.Get("obfs-host"),
 					}
 				} else if strings.Contains(pluginName, "v2ray-plugin") {
+					mode := pluginInfo.Get("mode")
+					if mode == "" {
+						mode = pluginInfo.Get("obfs")
+					}
+					host := pluginInfo.Get("host")
+					if host == "" {
+						host = pluginInfo.Get("obfs-host")
+					}
 					ss["plugin"] = "v2ray-plugin"
 					ss["plugin-opts"] = map[string]any{
-						"mode": pluginInfo.Get("mode"),
-						"host": pluginInfo.Get("host"),
+						"mode": mode,
+						"host": host,
 						"path": pluginInfo.Get("path"),
 						"tls":  strings.Contains(plugin, "tls"),
 					}

mihomo/listener/inbound/common_test.go

@@ -13,6 +13,7 @@ import (
 	"strconv"
 	"sync"
 	"testing"
+	"time"
 
 	N "github.com/metacubex/mihomo/common/net"
 	"github.com/metacubex/mihomo/common/pool"
@@ -185,6 +186,11 @@ func NewHttpTestTunnel() *TestTunnel {
 			DialContext: func(context.Context, string, string) (net.Conn, error) {
 				return instance, nil
 			},
+			// from http.DefaultTransport
+			MaxIdleConns:          100,
+			IdleConnTimeout:       90 * time.Second,
+			TLSHandshakeTimeout:   10 * time.Second,
+			ExpectContinueTimeout: 1 * time.Second,
 			// for our self-signed cert
 			TLSClientConfig: tlsClientConfig.Clone(),
 			// open http2
@@ -192,6 +198,7 @@ func NewHttpTestTunnel() *TestTunnel {
 		}
 
 		client := http.Client{
+			Timeout:   30 * time.Second,
 			Transport: transport,
 			CheckRedirect: func(req *http.Request, via []*http.Request) error {
 				return http.ErrUseLastResponse

openwrt-packages/ddns-go/Makefile

@@ -8,12 +8,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=ddns-go
-PKG_VERSION:=6.16.6
+PKG_VERSION:=6.16.7
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://codeload.github.com/jeessy2/ddns-go/tar.gz/v$(PKG_VERSION)?
-PKG_HASH:=60505ad420882c5f64b45d449e8cd9f37e5cc4189558609b0f14aeca71ab0bda
+PKG_HASH:=3f30d2aba480b20605951b6bd7e21dd059a2b9804f270ba448aefaa63e4e4158
 
 PKG_LICENSE:=MIT
 PKG_LICENSE_FILES:=LICENSE

openwrt-passwall/luci-app-passwall/Makefile

@@ -7,7 +7,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=luci-app-passwall
-PKG_VERSION:=26.4.6
+PKG_VERSION:=26.4.15
 PKG_RELEASE:=1
 PKG_PO_VERSION:=$(PKG_VERSION)
 

openwrt-passwall/luci-app-passwall/luasrc/model/cbi/passwall/client/global.lua

@@ -533,12 +533,12 @@ o = s:taboption("DNS", Flag, "dns_redirect", translate("DNS Redirect"), translat
 o.default = "1"
 o.rmempty = false
 
-local use_nft = m:get("@global_forwarding[0]", "use_nft") == "1"
-local set_title = api.i18n.translate(use_nft and "Clear NFTSET on Reboot" or "Clear IPSET on Reboot")
+local prefer_nft = m:get("@global_forwarding[0]", "prefer_nft") == "1"
+local set_title = api.i18n.translate(prefer_nft and "Clear NFTSET on Reboot" or "Clear IPSET on Reboot")
 o = s:taboption("DNS", Flag, "flush_set_on_reboot", set_title, translate("Clear IPSET/NFTSET on service reboot. This may increase reboot time."))
 o.default = "0"
 
-set_title = api.i18n.translate(use_nft and "Clear NFTSET" or "Clear IPSET")
+set_title = api.i18n.translate(prefer_nft and "Clear NFTSET" or "Clear IPSET")
 o = s:taboption("DNS", DummyValue, "clear_ipset", set_title, translate("Try this feature if the rule modification does not take effect."))
 o.rawhtml = true
 function o.cfgvalue(self, section)

openwrt-passwall/luci-app-passwall/luasrc/model/cbi/passwall/client/type/ray.lua

@@ -513,33 +513,6 @@ o:depends({ [_n("transport")] = "mkcp" })
 o = s:option(Value, _n("mkcp_domain"), translate("Camouflage Domain"), translate("Use it together with the DNS disguised type. You can fill in any domain."))
 o:depends({ [_n("mkcp_guise")] = "dns" })
 
-o = s:option(Value, _n("mkcp_mtu"), translate("KCP MTU"))
-o.default = "1350"
-o:depends({ [_n("transport")] = "mkcp" })
-
-o = s:option(Value, _n("mkcp_tti"), translate("KCP TTI"))
-o.default = "20"
-o:depends({ [_n("transport")] = "mkcp" })
-
-o = s:option(Value, _n("mkcp_uplinkCapacity"), translate("KCP uplinkCapacity"))
-o.default = "5"
-o:depends({ [_n("transport")] = "mkcp" })
-
-o = s:option(Value, _n("mkcp_downlinkCapacity"), translate("KCP downlinkCapacity"))
-o.default = "20"
-o:depends({ [_n("transport")] = "mkcp" })
-
-o = s:option(Flag, _n("mkcp_congestion"), translate("KCP Congestion"))
-o:depends({ [_n("transport")] = "mkcp" })
-
-o = s:option(Value, _n("mkcp_readBufferSize"), translate("KCP readBufferSize"))
-o.default = "1"
-o:depends({ [_n("transport")] = "mkcp" })
-
-o = s:option(Value, _n("mkcp_writeBufferSize"), translate("KCP writeBufferSize"))
-o.default = "1"
-o:depends({ [_n("transport")] = "mkcp" })
-
 o = s:option(Value, _n("mkcp_seed"), translate("KCP Seed"))
 o:depends({ [_n("transport")] = "mkcp" })
 
@@ -652,6 +625,14 @@ end
 
 -- [[ User-Agent ]]--
 o = s:option(Value, _n("user_agent"), translate("User-Agent"))
+o.default = ""
+o:value("", translate("default"))
+o:value("Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.131 Safari/537.36", "chrome")
+o:value("Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0", "firefox")
+o:value("Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1.1 Safari/605.1.15", "safari")
+o:value("Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36 Edg/91.0.864.70", "edge")
+o:value("Go-http-client/1.1", "golang")
+o:value("curl/7.68.0", "curl")
 o:depends({ [_n("tcp_guise")] = "http" })
 o:depends({ [_n("transport")] = "ws" })
 o:depends({ [_n("transport")] = "httpupgrade" })

openwrt-passwall/luci-app-passwall/luasrc/model/cbi/passwall/client/type/sing-box.lua

@@ -639,6 +639,14 @@ o:depends({ [_n("grpc_health_check")] = true })
 
 -- [[ User-Agent ]]--
 o = s:option(Value, _n("user_agent"), translate("User-Agent"))
+o.default = ""
+o:value("", translate("default"))
+o:value("Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.131 Safari/537.36", "chrome")
+o:value("Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0", "firefox")
+o:value("Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1.1 Safari/605.1.15", "safari")
+o:value("Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36 Edg/91.0.864.70", "edge")
+o:value("Go-http-client/1.1", "golang")
+o:value("curl/7.68.0", "curl")
 o:depends({ [_n("tcp_guise")] = "http" })
 o:depends({ [_n("transport")] = "http" })
 o:depends({ [_n("transport")] = "ws" })

openwrt-passwall/luci-app-passwall/luasrc/model/cbi/passwall/server/type/ray.lua

@@ -352,33 +352,6 @@ o:depends({ [_n("transport")] = "mkcp" })
 o = s:option(Value, _n("mkcp_domain"), translate("Camouflage Domain"), translate("Use it together with the DNS disguised type. You can fill in any domain."))
 o:depends({ [_n("mkcp_guise")] = "dns" })
 
-o = s:option(Value, _n("mkcp_mtu"), translate("KCP MTU"))
-o.default = "1350"
-o:depends({ [_n("transport")] = "mkcp" })
-
-o = s:option(Value, _n("mkcp_tti"), translate("KCP TTI"))
-o.default = "20"
-o:depends({ [_n("transport")] = "mkcp" })
-
-o = s:option(Value, _n("mkcp_uplinkCapacity"), translate("KCP uplinkCapacity"))
-o.default = "5"
-o:depends({ [_n("transport")] = "mkcp" })
-
-o = s:option(Value, _n("mkcp_downlinkCapacity"), translate("KCP downlinkCapacity"))
-o.default = "20"
-o:depends({ [_n("transport")] = "mkcp" })
-
-o = s:option(Flag, _n("mkcp_congestion"), translate("KCP Congestion"))
-o:depends({ [_n("transport")] = "mkcp" })
-
-o = s:option(Value, _n("mkcp_readBufferSize"), translate("KCP readBufferSize"))
-o.default = "1"
-o:depends({ [_n("transport")] = "mkcp" })
-
-o = s:option(Value, _n("mkcp_writeBufferSize"), translate("KCP writeBufferSize"))
-o.default = "1"
-o:depends({ [_n("transport")] = "mkcp" })
-
 o = s:option(Value, _n("mkcp_seed"), translate("KCP Seed"))
 o:depends({ [_n("transport")] = "mkcp" })
 

openwrt-passwall/luci-app-passwall/luasrc/passwall/util_xray.lua

@@ -193,13 +193,12 @@ function gen_outbound(flag, node, tag, proxy_table)
 					}
 				} or nil,
 				kcpSettings = (node.transport == "mkcp") and {
-					mtu = tonumber(node.mkcp_mtu),
-					tti = tonumber(node.mkcp_tti),
-					uplinkCapacity = tonumber(node.mkcp_uplinkCapacity),
-					downlinkCapacity = tonumber(node.mkcp_downlinkCapacity),
-					congestion = (node.mkcp_congestion == "1") and true or false,
-					readBufferSize = tonumber(node.mkcp_readBufferSize),
-					writeBufferSize = tonumber(node.mkcp_writeBufferSize)
+					mtu = 1350,
+					tti = 50,
+					uplinkCapacity = 12,
+					downlinkCapacity = 100,
+					CwndMultiplier = 1,
+					MaxSendingWindow = 2 * 1024 * 1024
 				} or nil,
 				wsSettings = (node.transport == "ws") and {
 					path = node.ws_path or "/",
@@ -655,13 +654,12 @@ function gen_config_server(node)
 						}
 					} or nil,
 					kcpSettings = (node.transport == "mkcp") and {
-						mtu = tonumber(node.mkcp_mtu),
-						tti = tonumber(node.mkcp_tti),
-						uplinkCapacity = tonumber(node.mkcp_uplinkCapacity),
-						downlinkCapacity = tonumber(node.mkcp_downlinkCapacity),
-						congestion = (node.mkcp_congestion == "1") and true or false,
-						readBufferSize = tonumber(node.mkcp_readBufferSize),
-						writeBufferSize = tonumber(node.mkcp_writeBufferSize)
+						mtu = 1350,
+						tti = 50,
+						uplinkCapacity = 12,
+						downlinkCapacity = 100,
+						CwndMultiplier = 1,
+						MaxSendingWindow = 2 * 1024 * 1024
 					} or nil,
 					wsSettings = (node.transport == "ws") and {
 						host = node.ws_host or nil,

openwrt-passwall/luci-app-passwall/root/usr/share/passwall/subscribe.lua

@@ -581,12 +581,6 @@ local function processData(szType, content, add_mode, group)
 		if info.net == 'kcp' or info.net == 'mkcp' then
 			info.net = "mkcp"
 			result.mkcp_guise = info.type
-			result.mkcp_mtu = 1350
-			result.mkcp_tti = 50
-			result.mkcp_uplinkCapacity = 5
-			result.mkcp_downlinkCapacity = 20
-			result.mkcp_readBufferSize = 2
-			result.mkcp_writeBufferSize = 2
 			result.mkcp_seed = info.seed
 		end
 		if info.net == 'quic' then
@@ -839,12 +833,6 @@ local function processData(szType, content, add_mode, group)
 					if params.type == 'kcp' or params.type == 'mkcp' then
 						result.transport = "mkcp"
 						result.mkcp_guise = params.headerType or "none"
-						result.mkcp_mtu = 1350
-						result.mkcp_tti = 50
-						result.mkcp_uplinkCapacity = 5
-						result.mkcp_downlinkCapacity = 20
-						result.mkcp_readBufferSize = 2
-						result.mkcp_writeBufferSize = 2
 						result.mkcp_seed = params.seed
 					end
 					if params.type == 'quic' then
@@ -1057,12 +1045,6 @@ local function processData(szType, content, add_mode, group)
 			if params.type == 'kcp' or params.type == 'mkcp' then
 				result.transport = "mkcp"
 				result.mkcp_guise = params.headerType or "none"
-				result.mkcp_mtu = 1350
-				result.mkcp_tti = 50
-				result.mkcp_uplinkCapacity = 5
-				result.mkcp_downlinkCapacity = 20
-				result.mkcp_readBufferSize = 2
-				result.mkcp_writeBufferSize = 2
 				result.mkcp_seed = params.seed
 			end
 			if params.type == 'quic' then
@@ -1205,12 +1187,6 @@ local function processData(szType, content, add_mode, group)
 			if params.type == 'kcp' or params.type == 'mkcp' then
 				result.transport = "mkcp"
 				result.mkcp_guise = params.headerType or "none"
-				result.mkcp_mtu = 1350
-				result.mkcp_tti = 50
-				result.mkcp_uplinkCapacity = 5
-				result.mkcp_downlinkCapacity = 20
-				result.mkcp_readBufferSize = 2
-				result.mkcp_writeBufferSize = 2
 				result.mkcp_seed = params.seed
 			end
 			if params.type == 'quic' then

shadowsocks-rust/Cargo.lock

@@ -140,7 +140,7 @@ version = "1.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "40c48f72fd53cd289104fc64099abca73db4166ad86ea0b4341abe65af83dadc"
 dependencies = [
- "windows-sys 0.60.2",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -151,7 +151,7 @@ checksum = "291e6a250ff86cd4a820112fb8898808a366d8f9f58ce16d1f538353ad55747d"
 dependencies = [
  "anstyle",
  "once_cell_polyfill",
- "windows-sys 0.60.2",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -883,7 +883,7 @@ dependencies = [
  "libc",
  "option-ext",
  "redox_users",
- "windows-sys 0.60.2",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -996,7 +996,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "39cab71617ae0d63f51a36d69f866391735b51691dbda63cf6f96d042b63efeb"
 dependencies = [
  "libc",
- "windows-sys 0.52.0",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -2245,7 +2245,7 @@ version = "0.50.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7957b9740744892f114936ab4a57b3f487491bbeafaf8083688b16841a4240e5"
 dependencies = [
- "windows-sys 0.60.2",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -2620,7 +2620,7 @@ dependencies = [
  "once_cell",
  "socket2 0.5.10",
  "tracing",
- "windows-sys 0.52.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -2897,7 +2897,7 @@ dependencies = [
  "errno",
  "libc",
  "linux-raw-sys",
- "windows-sys 0.52.0",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -2956,7 +2956,7 @@ dependencies = [
  "security-framework 3.5.1",
  "security-framework-sys",
  "webpki-root-certs",
- "windows-sys 0.52.0",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -3457,7 +3457,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3a766e1110788c36f4fa1c2b71b387a7815aa65f88ce0229841826633d93723e"
 dependencies = [
  "libc",
- "windows-sys 0.60.2",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -3603,7 +3603,7 @@ dependencies = [
  "getrandom 0.3.4",
  "once_cell",
  "rustix",
- "windows-sys 0.52.0",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -3950,9 +3950,9 @@ checksum = "e421abadd41a4225275504ea4d6566923418b7f05506fbc9c0fe86ba7396114b"
 
 [[package]]
 name = "tun"
-version = "0.8.6"
+version = "0.8.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "87dce40a7bfb165d8eb8e96f7463230f3d91b56aae21e0f1e56db60161962e1a"
+checksum = "0ebb3e56bb60c1e6650c9317997862ab05864c358add3cfaa34b855ffae583d0"
 dependencies = [
  "bytes",
  "cfg-if",

sing-box/.github/workflows/test.yml

@@ -0,0 +1,55 @@
+name: Test
+
+on:
+  push:
+    branches:
+      - stable
+      - testing
+      - unstable
+    paths-ignore:
+      - '**.md'
+      - '.github/**'
+      - '!.github/workflows/test.yml'
+  pull_request:
+    branches:
+      - stable
+      - testing
+      - unstable
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.event_name }}-${{ inputs.build }}
+  cancel-in-progress: true
+
+jobs:
+  test:
+    name: Test
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-latest
+          - windows-latest
+          - macos-latest
+        go:
+          - ~1.24
+          - ~1.25
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ matrix.go }}
+      - name: Set build tags and ldflags
+        shell: bash
+        run: |
+          echo "BUILD_TAGS=$(cat release/DEFAULT_BUILD_TAGS_OTHERS)" >> "$GITHUB_ENV"
+          echo "LDFLAGS_SHARED=$(cat release/LDFLAGS)" >> "$GITHUB_ENV"
+      - name: Test (unix)
+        if: matrix.os != 'windows-latest'
+        run: go test -v -exec sudo -tags "$BUILD_TAGS" -ldflags "$LDFLAGS_SHARED" ./...
+      - name: Test (windows)
+        if: matrix.os == 'windows-latest'
+        shell: bash
+        run: go test -v -tags "$BUILD_TAGS" -ldflags "$LDFLAGS_SHARED" ./...

sing-box/.golangci.yml

@@ -19,7 +19,6 @@ linters:
   enable:
     - govet
     - ineffassign
-    - paralleltest
     - staticcheck
   settings:
     staticcheck:

sing-box/Makefile

@@ -52,7 +52,7 @@ lint:
 	GOOS=android golangci-lint run ./...
 	GOOS=windows golangci-lint run ./...
 	GOOS=darwin golangci-lint run ./...
-	GOOS=freebsd golangci-lint run ./...
+	# GOOS=freebsd golangci-lint run ./...
 
 lint_install:
 	go install -v github.com/golangci/golangci-lint/v2/cmd/golangci-lint@latest

sing-box/adapter/http.go

@@ -0,0 +1,43 @@
+package adapter
+
+import (
+	"context"
+	"net/http"
+	"sync"
+
+	"github.com/sagernet/sing-box/option"
+	"github.com/sagernet/sing/common/logger"
+)
+
+type HTTPTransport interface {
+	http.RoundTripper
+	CloseIdleConnections()
+	Reset()
+}
+
+type HTTPClientManager interface {
+	ResolveTransport(ctx context.Context, logger logger.ContextLogger, options option.HTTPClientOptions) (HTTPTransport, error)
+	DefaultTransport() HTTPTransport
+	ResetNetwork()
+}
+
+type HTTPStartContext struct {
+	access     sync.Mutex
+	transports []HTTPTransport
+}
+
+func NewHTTPStartContext() *HTTPStartContext {
+	return &HTTPStartContext{}
+}
+
+func (c *HTTPStartContext) Register(transport HTTPTransport) {
+	c.access.Lock()
+	defer c.access.Unlock()
+	c.transports = append(c.transports, transport)
+}
+
+func (c *HTTPStartContext) Close() {
+	for _, transport := range c.transports {
+		transport.CloseIdleConnections()
+	}
+}

sing-box/adapter/router.go

@@ -2,17 +2,11 @@ package adapter
 
 import (
 	"context"
-	"crypto/tls"
 	"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"
 	"github.com/sagernet/sing/common/x/list"
 
 	"go4.org/netipx"
@@ -77,46 +71,3 @@ type RuleSetMetadata struct {
 	ContainsIPCIDRRule       bool
 	ContainsDNSQueryTypeRule bool
 }
-type HTTPStartContext struct {
-	ctx             context.Context
-	access          sync.Mutex
-	httpClientCache map[string]*http.Client
-}
-
-func NewHTTPStartContext(ctx context.Context) *HTTPStartContext {
-	return &HTTPStartContext{
-		ctx:             ctx,
-		httpClientCache: make(map[string]*http.Client),
-	}
-}
-
-func (c *HTTPStartContext) HTTPClient(detour string, dialer N.Dialer) *http.Client {
-	c.access.Lock()
-	defer c.access.Unlock()
-	if httpClient, loaded := c.httpClientCache[detour]; loaded {
-		return httpClient
-	}
-	httpClient := &http.Client{
-		Transport: &http.Transport{
-			ForceAttemptHTTP2:   true,
-			TLSHandshakeTimeout: C.TCPTimeout,
-			DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
-				return dialer.DialContext(ctx, network, M.ParseSocksaddr(addr))
-			},
-			TLSClientConfig: &tls.Config{
-				Time:    ntp.TimeFuncFromContext(c.ctx),
-				RootCAs: RootPoolFromContext(c.ctx),
-			},
-		},
-	}
-	c.httpClientCache[detour] = httpClient
-	return httpClient
-}
-
-func (c *HTTPStartContext) Close() {
-	c.access.Lock()
-	defer c.access.Unlock()
-	for _, client := range c.httpClientCache {
-		client.CloseIdleConnections()
-	}
-}

sing-box/box.go

@@ -16,12 +16,14 @@ import (
 	boxService "github.com/sagernet/sing-box/adapter/service"
 	"github.com/sagernet/sing-box/common/certificate"
 	"github.com/sagernet/sing-box/common/dialer"
+	"github.com/sagernet/sing-box/common/httpclient"
 	"github.com/sagernet/sing-box/common/taskmonitor"
 	"github.com/sagernet/sing-box/common/tls"
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/dns"
 	"github.com/sagernet/sing-box/experimental"
 	"github.com/sagernet/sing-box/experimental/cachefile"
+	"github.com/sagernet/sing-box/experimental/deprecated"
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
 	"github.com/sagernet/sing-box/protocol/direct"
@@ -50,6 +52,7 @@ type Box struct {
 	dnsRouter           *dns.Router
 	connection          *route.ConnectionManager
 	router              *route.Router
+	httpClientService   adapter.LifecycleService
 	internalService     []adapter.LifecycleService
 	done                chan struct{}
 }
@@ -169,6 +172,7 @@ func New(options Options) (*Box, error) {
 	}
 
 	var internalServices []adapter.LifecycleService
+	routeOptions := common.PtrValueOrDefault(options.Route)
 	certificateOptions := common.PtrValueOrDefault(options.Certificate)
 	if C.IsAndroid || certificateOptions.Store != "" && certificateOptions.Store != C.CertificateStoreSystem ||
 		len(certificateOptions.Certificate) > 0 ||
@@ -181,8 +185,6 @@ func New(options Options) (*Box, error) {
 		service.MustRegister[adapter.CertificateStore](ctx, certificateStore)
 		internalServices = append(internalServices, certificateStore)
 	}
-
-	routeOptions := common.PtrValueOrDefault(options.Route)
 	dnsOptions := common.PtrValueOrDefault(options.DNS)
 	endpointManager := endpoint.NewManager(logFactory.NewLogger("endpoint"), endpointRegistry)
 	inboundManager := inbound.NewManager(logFactory.NewLogger("inbound"), inboundRegistry, endpointManager)
@@ -209,6 +211,10 @@ func New(options Options) (*Box, error) {
 	service.MustRegister[adapter.NetworkManager](ctx, networkManager)
 	connectionManager := route.NewConnectionManager(logFactory.NewLogger("connection"))
 	service.MustRegister[adapter.ConnectionManager](ctx, connectionManager)
+	// Must register after ConnectionManager: the Apple HTTP engine's proxy bridge reads it from the context when Manager.Start resolves the default client.
+	httpClientManager := httpclient.NewManager(ctx, logFactory.NewLogger("httpclient"), options.HTTPClients, routeOptions.DefaultHTTPClient)
+	service.MustRegister[adapter.HTTPClientManager](ctx, httpClientManager)
+	httpClientService := adapter.LifecycleService(httpClientManager)
 	router := route.NewRouter(ctx, logFactory, routeOptions, dnsOptions)
 	service.MustRegister[adapter.Router](ctx, router)
 	err = router.Initialize(routeOptions.Rules, routeOptions.RuleSet)
@@ -368,6 +374,12 @@ func New(options Options) (*Box, error) {
 			&option.LocalDNSServerOptions{},
 		)
 	})
+	httpClientManager.Initialize(func() (*httpclient.ManagedTransport, error) {
+		deprecated.Report(ctx, deprecated.OptionImplicitDefaultHTTPClient)
+		var httpClientOptions option.HTTPClientOptions
+		httpClientOptions.DefaultOutbound = true
+		return httpclient.NewTransport(ctx, logFactory.NewLogger("httpclient"), "", httpClientOptions)
+	})
 	if platformInterface != nil {
 		err = platformInterface.Initialize(networkManager)
 		if err != nil {
@@ -428,6 +440,7 @@ func New(options Options) (*Box, error) {
 		dnsRouter:           dnsRouter,
 		connection:          connectionManager,
 		router:              router,
+		httpClientService:   httpClientService,
 		createdAt:           createdAt,
 		logFactory:          logFactory,
 		logger:              logFactory.Logger(),
@@ -490,7 +503,15 @@ func (s *Box) preStart() error {
 	if err != nil {
 		return err
 	}
-	err = adapter.Start(s.logger, adapter.StartStateStart, s.outbound, s.dnsTransport, s.network, s.connection, s.router, s.dnsRouter)
+	err = adapter.Start(s.logger, adapter.StartStateStart, s.outbound, s.dnsTransport, s.network, s.connection)
+	if err != nil {
+		return err
+	}
+	err = adapter.StartNamed(s.logger, adapter.StartStateStart, []adapter.LifecycleService{s.httpClientService})
+	if err != nil {
+		return err
+	}
+	err = adapter.Start(s.logger, adapter.StartStateStart, s.router, s.dnsRouter)
 	if err != nil {
 		return err
 	}
@@ -567,6 +588,14 @@ func (s *Box) Close() error {
 		})
 		s.logger.Trace("close ", closeItem.name, " completed (", F.Seconds(time.Since(startTime).Seconds()), "s)")
 	}
+	if s.httpClientService != nil {
+		s.logger.Trace("close ", s.httpClientService.Name())
+		startTime := time.Now()
+		err = E.Append(err, s.httpClientService.Close(), func(err error) error {
+			return E.Cause(err, "close ", s.httpClientService.Name())
+		})
+		s.logger.Trace("close ", s.httpClientService.Name(), " completed (", F.Seconds(time.Since(startTime).Seconds()), "s)")
+	}
 	for _, lifecycleService := range s.internalService {
 		s.logger.Trace("close ", lifecycleService.Name())
 		startTime := time.Now()

sing-box/cmd/internal/build_libbox/main.go

@@ -204,6 +204,9 @@ func buildApple() {
 		"-target", bindTarget,
 		"-libname=box",
 		"-tags-not-macos=with_low_memory",
+		"-iosversion=15.0",
+		"-macosversion=13.0",
+		"-tvosversion=17.0",
 	}
 	//if !withTailscale {
 	//	args = append(args, "-tags-macos="+strings.Join(memcTags, ","))

sing-box/cmd/internal/update_certificates/main.go

@@ -5,6 +5,7 @@ import (
 	"io"
 	"net/http"
 	"os"
+	"path/filepath"
 	"strings"
 
 	"github.com/sagernet/sing-box/log"
@@ -35,21 +36,9 @@ func updateMozillaIncludedRootCAs() error {
 		return err
 	}
 	geoIndex := slices.Index(header, "Geographic Focus")
-	nameIndex := slices.Index(header, "Common Name or Certificate Name")
 	certIndex := slices.Index(header, "PEM Info")
 
-	generated := strings.Builder{}
-	generated.WriteString(`// Code generated by 'make update_certificates'. DO NOT EDIT.
-
-package certificate
-
-import "crypto/x509"
-
-var mozillaIncluded *x509.CertPool
-
-func init() {
-	mozillaIncluded = x509.NewCertPool()
-`)
+	pemBundle := strings.Builder{}
 	for {
 		record, err := reader.Read()
 		if err == io.EOF {
@@ -60,18 +49,12 @@ func init() {
 		if record[geoIndex] == "China" {
 			continue
 		}
-		generated.WriteString("\n	// ")
-		generated.WriteString(record[nameIndex])
-		generated.WriteString("\n")
-		generated.WriteString("	mozillaIncluded.AppendCertsFromPEM([]byte(`")
 		cert := record[certIndex]
-		// Remove single quotes
 		cert = cert[1 : len(cert)-1]
-		generated.WriteString(cert)
-		generated.WriteString("`))\n")
+		pemBundle.WriteString(cert)
+		pemBundle.WriteString("\n")
 	}
-	generated.WriteString("}\n")
-	return os.WriteFile("common/certificate/mozilla.go", []byte(generated.String()), 0o644)
+	return writeGeneratedCertificateBundle("mozilla", "mozillaIncluded", pemBundle.String())
 }
 
 func fetchChinaFingerprints() (map[string]bool, error) {
@@ -119,23 +102,11 @@ func updateChromeIncludedRootCAs() error {
 	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()
-`)
+	pemBundle := strings.Builder{}
 	for {
 		record, err := reader.Read()
 		if err == io.EOF {
@@ -149,18 +120,39 @@ func init() {
 		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")
+		pemBundle.WriteString(cert)
+		pemBundle.WriteString("\n")
 	}
-	generated.WriteString("}\n")
-	return os.WriteFile("common/certificate/chrome.go", []byte(generated.String()), 0o644)
+	return writeGeneratedCertificateBundle("chrome", "chromeIncluded", pemBundle.String())
+}
+
+func writeGeneratedCertificateBundle(name string, variableName string, pemBundle string) error {
+	goSource := `// Code generated by 'make update_certificates'. DO NOT EDIT.
+
+package certificate
+
+import (
+	"crypto/x509"
+	_ "embed"
+)
+
+//go:embed ` + name + `.pem
+var ` + variableName + `PEM string
+
+var ` + variableName + ` *x509.CertPool
+
+func init() {
+	` + variableName + ` = x509.NewCertPool()
+	` + variableName + `.AppendCertsFromPEM([]byte(` + variableName + `PEM))
+}
+`
+	err := os.WriteFile(filepath.Join("common/certificate", name+".pem"), []byte(pemBundle), 0o644)
+	if err != nil {
+		return err
+	}
+	return os.WriteFile(filepath.Join("common/certificate", name+".go"), []byte(goSource), 0o644)
 }

sing-box/common/certificate/store.go

@@ -22,8 +22,10 @@ var _ adapter.CertificateStore = (*Store)(nil)
 
 type Store struct {
 	access                    sync.RWMutex
+	store                     string
 	systemPool                *x509.CertPool
 	currentPool               *x509.CertPool
+	currentPEM                []string
 	certificate               string
 	certificatePaths          []string
 	certificateDirectoryPaths []string
@@ -61,6 +63,7 @@ func NewStore(ctx context.Context, logger logger.Logger, options option.Certific
 		return nil, E.New("unknown certificate store: ", options.Store)
 	}
 	store := &Store{
+		store:                     options.Store,
 		systemPool:                systemPool,
 		certificate:               strings.Join(options.Certificate, "\n"),
 		certificatePaths:          options.CertificatePath,
@@ -123,19 +126,37 @@ func (s *Store) Pool() *x509.CertPool {
 	return s.currentPool
 }
 
+func (s *Store) StoreKind() string {
+	return s.store
+}
+
+func (s *Store) CurrentPEM() []string {
+	s.access.RLock()
+	defer s.access.RUnlock()
+	return append([]string(nil), s.currentPEM...)
+}
+
 func (s *Store) update() error {
 	s.access.Lock()
 	defer s.access.Unlock()
 	var currentPool *x509.CertPool
+	var currentPEM []string
 	if s.systemPool == nil {
 		currentPool = x509.NewCertPool()
 	} else {
 		currentPool = s.systemPool.Clone()
 	}
+	switch s.store {
+	case C.CertificateStoreMozilla:
+		currentPEM = append(currentPEM, mozillaIncludedPEM)
+	case C.CertificateStoreChrome:
+		currentPEM = append(currentPEM, chromeIncludedPEM)
+	}
 	if s.certificate != "" {
 		if !currentPool.AppendCertsFromPEM([]byte(s.certificate)) {
 			return E.New("invalid certificate PEM strings")
 		}
+		currentPEM = append(currentPEM, s.certificate)
 	}
 	for _, path := range s.certificatePaths {
 		pemContent, err := os.ReadFile(path)
@@ -145,6 +166,7 @@ func (s *Store) update() error {
 		if !currentPool.AppendCertsFromPEM(pemContent) {
 			return E.New("invalid certificate PEM file: ", path)
 		}
+		currentPEM = append(currentPEM, string(pemContent))
 	}
 	var firstErr error
 	for _, directoryPath := range s.certificateDirectoryPaths {
@@ -157,8 +179,8 @@ func (s *Store) update() error {
 		}
 		for _, directoryEntry := range directoryEntries {
 			pemContent, err := os.ReadFile(filepath.Join(directoryPath, directoryEntry.Name()))
-			if err == nil {
-				currentPool.AppendCertsFromPEM(pemContent)
+			if err == nil && currentPool.AppendCertsFromPEM(pemContent) {
+				currentPEM = append(currentPEM, string(pemContent))
 			}
 		}
 	}
@@ -166,6 +188,7 @@ func (s *Store) update() error {
 		return firstErr
 	}
 	s.currentPool = currentPool
+	s.currentPEM = currentPEM
 	return nil
 }
 

sing-box/common/dialer/detour.go

@@ -19,6 +19,7 @@ type DirectDialer interface {
 type DetourDialer struct {
 	outboundManager adapter.OutboundManager
 	detour          string
+	defaultOutbound bool
 	legacyDNSDialer bool
 	dialer          N.Dialer
 	initOnce        sync.Once
@@ -33,6 +34,13 @@ func NewDetour(outboundManager adapter.OutboundManager, detour string, legacyDNS
 	}
 }
 
+func NewDefaultOutboundDetour(outboundManager adapter.OutboundManager) N.Dialer {
+	return &DetourDialer{
+		outboundManager: outboundManager,
+		defaultOutbound: true,
+	}
+}
+
 func InitializeDetour(dialer N.Dialer) error {
 	detourDialer, isDetour := common.Cast[*DetourDialer](dialer)
 	if !isDetour {
@@ -47,12 +55,18 @@ func (d *DetourDialer) Dialer() (N.Dialer, error) {
 }
 
 func (d *DetourDialer) init() {
-	dialer, loaded := d.outboundManager.Outbound(d.detour)
-	if !loaded {
-		d.initErr = E.New("outbound detour not found: ", d.detour)
-		return
+	var dialer adapter.Outbound
+	if d.detour != "" {
+		var loaded bool
+		dialer, loaded = d.outboundManager.Outbound(d.detour)
+		if !loaded {
+			d.initErr = E.New("outbound detour not found: ", d.detour)
+			return
+		}
+	} else {
+		dialer = d.outboundManager.Default()
 	}
-	if !d.legacyDNSDialer {
+	if !d.defaultOutbound && !d.legacyDNSDialer {
 		if directDialer, isDirect := dialer.(DirectDialer); isDirect {
 			if directDialer.IsEmpty() {
 				d.initErr = E.New("detour to an empty direct outbound makes no sense")

sing-box/common/dialer/dialer.go

@@ -25,6 +25,7 @@ type Options struct {
 	NewDialer        bool
 	LegacyDNSDialer  bool
 	DirectOutbound   bool
+	DefaultOutbound  bool
 }
 
 // TODO: merge with NewWithOptions
@@ -42,19 +43,26 @@ func NewWithOptions(options Options) (N.Dialer, error) {
 		dialer N.Dialer
 		err    error
 	)
+	hasDetour := dialOptions.Detour != "" || options.DefaultOutbound
 	if dialOptions.Detour != "" {
 		outboundManager := service.FromContext[adapter.OutboundManager](options.Context)
 		if outboundManager == nil {
 			return nil, E.New("missing outbound manager")
 		}
 		dialer = NewDetour(outboundManager, dialOptions.Detour, options.LegacyDNSDialer)
+	} else if options.DefaultOutbound {
+		outboundManager := service.FromContext[adapter.OutboundManager](options.Context)
+		if outboundManager == nil {
+			return nil, E.New("missing outbound manager")
+		}
+		dialer = NewDefaultOutboundDetour(outboundManager)
 	} else {
 		dialer, err = NewDefault(options.Context, dialOptions)
 		if err != nil {
 			return nil, err
 		}
 	}
-	if options.RemoteIsDomain && (dialOptions.Detour == "" || options.ResolverOnDetour || dialOptions.DomainResolver != nil && dialOptions.DomainResolver.Server != "") {
+	if options.RemoteIsDomain && (!hasDetour || options.ResolverOnDetour || dialOptions.DomainResolver != nil && dialOptions.DomainResolver.Server != "") {
 		networkManager := service.FromContext[adapter.NetworkManager](options.Context)
 		dnsTransport := service.FromContext[adapter.DNSTransportManager](options.Context)
 		var defaultOptions adapter.NetworkOptions

sing-box/common/httpclient/apple_transport_darwin.go

@@ -0,0 +1,423 @@
+//go:build darwin && cgo
+
+package httpclient
+
+/*
+#cgo CFLAGS: -x objective-c -fobjc-arc
+#cgo LDFLAGS: -framework Foundation -framework Security
+
+#include <stdlib.h>
+#include "apple_transport_darwin.h"
+*/
+import "C"
+
+import (
+	"bytes"
+	"context"
+	"crypto/sha256"
+	"fmt"
+	"io"
+	"net"
+	"net/http"
+	"strings"
+	"sync"
+	"sync/atomic"
+	"time"
+	"unsafe"
+
+	"github.com/sagernet/sing-box/common/proxybridge"
+	boxTLS "github.com/sagernet/sing-box/common/tls"
+	"github.com/sagernet/sing-box/option"
+	"github.com/sagernet/sing/common"
+	E "github.com/sagernet/sing/common/exceptions"
+	"github.com/sagernet/sing/common/logger"
+	N "github.com/sagernet/sing/common/network"
+	"github.com/sagernet/sing/common/ntp"
+)
+
+const applePinnedHashSize = sha256.Size
+
+func verifyApplePinnedPublicKeySHA256(flatHashes []byte, leafCertificate []byte) error {
+	if len(flatHashes)%applePinnedHashSize != 0 {
+		return E.New("invalid pinned public key list")
+	}
+	knownHashes := make([][]byte, 0, len(flatHashes)/applePinnedHashSize)
+	for offset := 0; offset < len(flatHashes); offset += applePinnedHashSize {
+		knownHashes = append(knownHashes, append([]byte(nil), flatHashes[offset:offset+applePinnedHashSize]...))
+	}
+	return boxTLS.VerifyPublicKeySHA256(knownHashes, [][]byte{leafCertificate})
+}
+
+//export box_apple_http_verify_public_key_sha256
+func box_apple_http_verify_public_key_sha256(knownHashValues *C.uint8_t, knownHashValuesLen C.size_t, leafCert *C.uint8_t, leafCertLen C.size_t) *C.char {
+	flatHashes := C.GoBytes(unsafe.Pointer(knownHashValues), C.int(knownHashValuesLen))
+	leafCertificate := C.GoBytes(unsafe.Pointer(leafCert), C.int(leafCertLen))
+	err := verifyApplePinnedPublicKeySHA256(flatHashes, leafCertificate)
+	if err == nil {
+		return nil
+	}
+	return C.CString(err.Error())
+}
+
+type appleSessionConfig struct {
+	serverName             string
+	minVersion             uint16
+	maxVersion             uint16
+	insecure               bool
+	anchorPEM              string
+	anchorOnly             bool
+	pinnedPublicKeySHA256s []byte
+}
+
+type appleTransportShared struct {
+	logger   logger.ContextLogger
+	bridge   *proxybridge.Bridge
+	config   appleSessionConfig
+	timeFunc func() time.Time
+	refs     atomic.Int32
+}
+
+type appleTransport struct {
+	shared  *appleTransportShared
+	access  sync.Mutex
+	session *C.box_apple_http_session_t
+	closed  bool
+}
+
+func newAppleTransport(ctx context.Context, logger logger.ContextLogger, rawDialer N.Dialer, options option.HTTPClientOptions) (innerTransport, error) {
+	sessionConfig, err := newAppleSessionConfig(ctx, options)
+	if err != nil {
+		return nil, err
+	}
+	bridge, err := proxybridge.New(ctx, logger, "apple http proxy", rawDialer)
+	if err != nil {
+		return nil, err
+	}
+	shared := &appleTransportShared{
+		logger:   logger,
+		bridge:   bridge,
+		config:   sessionConfig,
+		timeFunc: ntp.TimeFuncFromContext(ctx),
+	}
+	shared.refs.Store(1)
+	session, err := shared.newSession()
+	if err != nil {
+		bridge.Close()
+		return nil, err
+	}
+	return &appleTransport{
+		shared:  shared,
+		session: session,
+	}, nil
+}
+
+func newAppleSessionConfig(ctx context.Context, options option.HTTPClientOptions) (appleSessionConfig, error) {
+	version := options.Version
+	if version == 0 {
+		version = 2
+	}
+	switch version {
+	case 2:
+	case 1:
+		return appleSessionConfig{}, E.New("HTTP/1.1 is unsupported in Apple HTTP engine")
+	case 3:
+		return appleSessionConfig{}, E.New("HTTP/3 is unsupported in Apple HTTP engine")
+	default:
+		return appleSessionConfig{}, E.New("unknown HTTP version: ", version)
+	}
+	if options.DisableVersionFallback {
+		return appleSessionConfig{}, E.New("disable_version_fallback is unsupported in Apple HTTP engine")
+	}
+	if options.HTTP2Options != (option.HTTP2Options{}) {
+		return appleSessionConfig{}, E.New("HTTP/2 options are unsupported in Apple HTTP engine")
+	}
+	if options.HTTP3Options != (option.QUICOptions{}) {
+		return appleSessionConfig{}, E.New("QUIC options are unsupported in Apple HTTP engine")
+	}
+
+	tlsOptions := common.PtrValueOrDefault(options.TLS)
+	if tlsOptions.Engine != "" {
+		return appleSessionConfig{}, E.New("tls.engine is unsupported in Apple HTTP engine")
+	}
+	if len(tlsOptions.ALPN) > 0 {
+		return appleSessionConfig{}, E.New("tls.alpn is unsupported in Apple HTTP engine")
+	}
+	validated, err := boxTLS.ValidateAppleTLSOptions(ctx, tlsOptions, "Apple HTTP engine")
+	if err != nil {
+		return appleSessionConfig{}, err
+	}
+
+	config := appleSessionConfig{
+		serverName: tlsOptions.ServerName,
+		minVersion: validated.MinVersion,
+		maxVersion: validated.MaxVersion,
+		insecure:   tlsOptions.Insecure || len(tlsOptions.CertificatePublicKeySHA256) > 0,
+		anchorPEM:  validated.AnchorPEM,
+		anchorOnly: validated.AnchorOnly,
+	}
+	if len(tlsOptions.CertificatePublicKeySHA256) > 0 {
+		config.pinnedPublicKeySHA256s = make([]byte, 0, len(tlsOptions.CertificatePublicKeySHA256)*applePinnedHashSize)
+		for _, hashValue := range tlsOptions.CertificatePublicKeySHA256 {
+			if len(hashValue) != applePinnedHashSize {
+				return appleSessionConfig{}, E.New("invalid certificate_public_key_sha256 length: ", len(hashValue))
+			}
+			config.pinnedPublicKeySHA256s = append(config.pinnedPublicKeySHA256s, hashValue...)
+		}
+	}
+	return config, nil
+}
+
+func (s *appleTransportShared) retain() {
+	s.refs.Add(1)
+}
+
+func (s *appleTransportShared) release() error {
+	if s.refs.Add(-1) == 0 {
+		return s.bridge.Close()
+	}
+	return nil
+}
+
+func (s *appleTransportShared) newSession() (*C.box_apple_http_session_t, error) {
+	cProxyHost := C.CString("127.0.0.1")
+	defer C.free(unsafe.Pointer(cProxyHost))
+	cProxyUsername := C.CString(s.bridge.Username())
+	defer C.free(unsafe.Pointer(cProxyUsername))
+	cProxyPassword := C.CString(s.bridge.Password())
+	defer C.free(unsafe.Pointer(cProxyPassword))
+	var cAnchorPEM *C.char
+	if s.config.anchorPEM != "" {
+		cAnchorPEM = C.CString(s.config.anchorPEM)
+		defer C.free(unsafe.Pointer(cAnchorPEM))
+	}
+	var pinnedPointer *C.uint8_t
+	if len(s.config.pinnedPublicKeySHA256s) > 0 {
+		pinnedPointer = (*C.uint8_t)(C.CBytes(s.config.pinnedPublicKeySHA256s))
+		defer C.free(unsafe.Pointer(pinnedPointer))
+	}
+	cConfig := C.box_apple_http_session_config_t{
+		proxy_host:                   cProxyHost,
+		proxy_port:                   C.int(s.bridge.Port()),
+		proxy_username:               cProxyUsername,
+		proxy_password:               cProxyPassword,
+		min_tls_version:              C.uint16_t(s.config.minVersion),
+		max_tls_version:              C.uint16_t(s.config.maxVersion),
+		insecure:                     C.bool(s.config.insecure),
+		anchor_pem:                   cAnchorPEM,
+		anchor_pem_len:               C.size_t(len(s.config.anchorPEM)),
+		anchor_only:                  C.bool(s.config.anchorOnly),
+		pinned_public_key_sha256:     pinnedPointer,
+		pinned_public_key_sha256_len: C.size_t(len(s.config.pinnedPublicKeySHA256s)),
+	}
+	var cErr *C.char
+	session := C.box_apple_http_session_create(&cConfig, &cErr)
+	if session != nil {
+		return session, nil
+	}
+	return nil, appleCStringError(cErr, "create Apple HTTP session")
+}
+
+func (t *appleTransport) RoundTrip(request *http.Request) (*http.Response, error) {
+	if requestRequiresHTTP1(request) {
+		return nil, E.New("HTTP upgrade requests are unsupported in Apple HTTP engine")
+	}
+	if request.URL == nil {
+		return nil, E.New("missing request URL")
+	}
+	switch request.URL.Scheme {
+	case "http", "https":
+	default:
+		return nil, E.New("unsupported URL scheme: ", request.URL.Scheme)
+	}
+	if request.URL.Scheme == "https" && t.shared.config.serverName != "" && !strings.EqualFold(t.shared.config.serverName, request.URL.Hostname()) {
+		return nil, E.New("tls.server_name is unsupported in Apple HTTP engine unless it matches request host")
+	}
+	var body []byte
+	if request.Body != nil && request.Body != http.NoBody {
+		defer request.Body.Close()
+		var err error
+		body, err = io.ReadAll(request.Body)
+		if err != nil {
+			return nil, err
+		}
+	}
+	headerKeys, headerValues := flattenRequestHeaders(request)
+	cMethod := C.CString(request.Method)
+	defer C.free(unsafe.Pointer(cMethod))
+	cURL := C.CString(request.URL.String())
+	defer C.free(unsafe.Pointer(cURL))
+	cHeaderKeys := make([]*C.char, len(headerKeys))
+	cHeaderValues := make([]*C.char, len(headerValues))
+	defer func() {
+		for _, ptr := range cHeaderKeys {
+			C.free(unsafe.Pointer(ptr))
+		}
+		for _, ptr := range cHeaderValues {
+			C.free(unsafe.Pointer(ptr))
+		}
+	}()
+	for index, value := range headerKeys {
+		cHeaderKeys[index] = C.CString(value)
+	}
+	for index, value := range headerValues {
+		cHeaderValues[index] = C.CString(value)
+	}
+	var headerKeysPointer **C.char
+	var headerValuesPointer **C.char
+	if len(cHeaderKeys) > 0 {
+		pointerArraySize := C.size_t(len(cHeaderKeys)) * C.size_t(unsafe.Sizeof((*C.char)(nil)))
+		headerKeysPointer = (**C.char)(C.malloc(pointerArraySize))
+		defer C.free(unsafe.Pointer(headerKeysPointer))
+		headerValuesPointer = (**C.char)(C.malloc(pointerArraySize))
+		defer C.free(unsafe.Pointer(headerValuesPointer))
+		copy(unsafe.Slice(headerKeysPointer, len(cHeaderKeys)), cHeaderKeys)
+		copy(unsafe.Slice(headerValuesPointer, len(cHeaderValues)), cHeaderValues)
+	}
+	var bodyPointer *C.uint8_t
+	if len(body) > 0 {
+		bodyPointer = (*C.uint8_t)(C.CBytes(body))
+		defer C.free(unsafe.Pointer(bodyPointer))
+	}
+	var (
+		hasVerifyTime       bool
+		verifyTimeUnixMilli int64
+	)
+	if t.shared.timeFunc != nil {
+		hasVerifyTime = true
+		verifyTimeUnixMilli = t.shared.timeFunc().UnixMilli()
+	}
+	cRequest := C.box_apple_http_request_t{
+		method:                  cMethod,
+		url:                     cURL,
+		header_keys:             (**C.char)(headerKeysPointer),
+		header_values:           (**C.char)(headerValuesPointer),
+		header_count:            C.size_t(len(cHeaderKeys)),
+		body:                    bodyPointer,
+		body_len:                C.size_t(len(body)),
+		has_verify_time:         C.bool(hasVerifyTime),
+		verify_time_unix_millis: C.int64_t(verifyTimeUnixMilli),
+	}
+	var cErr *C.char
+	var task *C.box_apple_http_task_t
+	t.access.Lock()
+	if t.session == nil {
+		t.access.Unlock()
+		return nil, net.ErrClosed
+	}
+	// Keep the session attached until NSURLSession has created the task.
+	task = C.box_apple_http_session_send_async(t.session, &cRequest, &cErr)
+	t.access.Unlock()
+	if task == nil {
+		return nil, appleCStringError(cErr, "create Apple HTTP request")
+	}
+	cancelDone := make(chan struct{})
+	cancelExit := make(chan struct{})
+	go func() {
+		defer close(cancelExit)
+		select {
+		case <-request.Context().Done():
+			C.box_apple_http_task_cancel(task)
+		case <-cancelDone:
+		}
+	}()
+	cResponse := C.box_apple_http_task_wait(task, &cErr)
+	close(cancelDone)
+	<-cancelExit
+	C.box_apple_http_task_close(task)
+	if cResponse == nil {
+		err := appleCStringError(cErr, "Apple HTTP request failed")
+		if request.Context().Err() != nil {
+			return nil, request.Context().Err()
+		}
+		return nil, err
+	}
+	defer C.box_apple_http_response_free(cResponse)
+	return parseAppleHTTPResponse(request, cResponse), nil
+}
+
+func (t *appleTransport) CloseIdleConnections() {
+	t.access.Lock()
+	if t.closed {
+		t.access.Unlock()
+		return
+	}
+	t.access.Unlock()
+	newSession, err := t.shared.newSession()
+	if err != nil {
+		t.shared.logger.Error(E.Cause(err, "reset Apple HTTP session"))
+		return
+	}
+	t.access.Lock()
+	if t.closed {
+		t.access.Unlock()
+		C.box_apple_http_session_close(newSession)
+		return
+	}
+	oldSession := t.session
+	t.session = newSession
+	t.access.Unlock()
+	C.box_apple_http_session_retire(oldSession)
+}
+
+func (t *appleTransport) Close() error {
+	t.access.Lock()
+	if t.closed {
+		t.access.Unlock()
+		return nil
+	}
+	t.closed = true
+	session := t.session
+	t.session = nil
+	t.access.Unlock()
+	C.box_apple_http_session_close(session)
+	return t.shared.release()
+}
+
+func flattenRequestHeaders(request *http.Request) ([]string, []string) {
+	var (
+		keys   []string
+		values []string
+	)
+	for key, headerValues := range request.Header {
+		for _, value := range headerValues {
+			keys = append(keys, key)
+			values = append(values, value)
+		}
+	}
+	if request.Host != "" {
+		keys = append(keys, "Host")
+		values = append(values, request.Host)
+	}
+	return keys, values
+}
+
+func parseAppleHTTPResponse(request *http.Request, response *C.box_apple_http_response_t) *http.Response {
+	headers := make(http.Header)
+	headerKeys := unsafe.Slice(response.header_keys, int(response.header_count))
+	headerValues := unsafe.Slice(response.header_values, int(response.header_count))
+	for index := range headerKeys {
+		headers.Add(C.GoString(headerKeys[index]), C.GoString(headerValues[index]))
+	}
+	body := bytes.NewReader(C.GoBytes(unsafe.Pointer(response.body), C.int(response.body_len)))
+	// NSURLSession's completion-handler API does not expose the negotiated protocol;
+	// callers that read Response.Proto will see HTTP/1.1 even when the wire was HTTP/2.
+	return &http.Response{
+		StatusCode:    int(response.status_code),
+		Status:        fmt.Sprintf("%d %s", int(response.status_code), http.StatusText(int(response.status_code))),
+		Proto:         "HTTP/1.1",
+		ProtoMajor:    1,
+		ProtoMinor:    1,
+		Header:        headers,
+		Body:          io.NopCloser(body),
+		ContentLength: int64(body.Len()),
+		Request:       request,
+	}
+}
+
+func appleCStringError(cErr *C.char, message string) error {
+	if cErr == nil {
+		return E.New(message)
+	}
+	defer C.free(unsafe.Pointer(cErr))
+	return E.New(message, ": ", C.GoString(cErr))
+}

sing-box/common/httpclient/apple_transport_darwin.h

@@ -0,0 +1,71 @@
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+typedef struct box_apple_http_session box_apple_http_session_t;
+typedef struct box_apple_http_task box_apple_http_task_t;
+
+typedef struct box_apple_http_session_config {
+	const char *proxy_host;
+	int proxy_port;
+	const char *proxy_username;
+	const char *proxy_password;
+	uint16_t min_tls_version;
+	uint16_t max_tls_version;
+	bool insecure;
+	const char *anchor_pem;
+	size_t anchor_pem_len;
+	bool anchor_only;
+	const uint8_t *pinned_public_key_sha256;
+	size_t pinned_public_key_sha256_len;
+} box_apple_http_session_config_t;
+
+typedef struct box_apple_http_request {
+	const char *method;
+	const char *url;
+	const char **header_keys;
+	const char **header_values;
+	size_t header_count;
+	const uint8_t *body;
+	size_t body_len;
+	bool has_verify_time;
+	int64_t verify_time_unix_millis;
+} box_apple_http_request_t;
+
+typedef struct box_apple_http_response {
+	int status_code;
+	char **header_keys;
+	char **header_values;
+	size_t header_count;
+	uint8_t *body;
+	size_t body_len;
+	char *error;
+} box_apple_http_response_t;
+
+box_apple_http_session_t *box_apple_http_session_create(
+	const box_apple_http_session_config_t *config,
+	char **error_out
+);
+void box_apple_http_session_retire(box_apple_http_session_t *session);
+void box_apple_http_session_close(box_apple_http_session_t *session);
+
+box_apple_http_task_t *box_apple_http_session_send_async(
+	box_apple_http_session_t *session,
+	const box_apple_http_request_t *request,
+	char **error_out
+);
+box_apple_http_response_t *box_apple_http_task_wait(
+	box_apple_http_task_t *task,
+	char **error_out
+);
+void box_apple_http_task_cancel(box_apple_http_task_t *task);
+void box_apple_http_task_close(box_apple_http_task_t *task);
+
+void box_apple_http_response_free(box_apple_http_response_t *response);
+
+char *box_apple_http_verify_public_key_sha256(
+	uint8_t *known_hash_values,
+	size_t known_hash_values_len,
+	uint8_t *leaf_cert,
+	size_t leaf_cert_len
+);

sing-box/common/httpclient/apple_transport_darwin.m

@@ -0,0 +1,398 @@
+#import "apple_transport_darwin.h"
+
+#import <CoreFoundation/CFStream.h>
+#import <Foundation/Foundation.h>
+#import <Security/Security.h>
+#import <dispatch/dispatch.h>
+#import <stdlib.h>
+#import <string.h>
+
+typedef struct box_apple_http_session {
+	void *handle;
+} box_apple_http_session_t;
+
+typedef struct box_apple_http_task {
+	void *task;
+	void *done_semaphore;
+	box_apple_http_response_t *response;
+	char *error;
+} box_apple_http_task_t;
+
+static NSString *const box_apple_http_verify_time_key = @"sing-box.verify-time";
+
+static void box_set_error_string(char **error_out, NSString *message) {
+	if (error_out == NULL || *error_out != NULL) {
+		return;
+	}
+	const char *utf8 = [message UTF8String];
+	*error_out = strdup(utf8 != NULL ? utf8 : "unknown error");
+}
+
+static void box_set_error_from_nserror(char **error_out, NSError *error) {
+	if (error == nil) {
+		box_set_error_string(error_out, @"unknown error");
+		return;
+	}
+	box_set_error_string(error_out, error.localizedDescription ?: error.description);
+}
+
+static NSArray *box_parse_certificates_from_pem(const char *pem, size_t pem_len) {
+	if (pem == NULL || pem_len == 0) {
+		return @[];
+	}
+	NSString *content = [[NSString alloc] initWithBytes:pem length:pem_len encoding:NSUTF8StringEncoding];
+	if (content == nil) {
+		return @[];
+	}
+	NSString *beginMarker = @"-----BEGIN CERTIFICATE-----";
+	NSString *endMarker = @"-----END CERTIFICATE-----";
+	NSMutableArray *certificates = [NSMutableArray array];
+	NSUInteger searchFrom = 0;
+	while (searchFrom < content.length) {
+		NSRange beginRange = [content rangeOfString:beginMarker options:0 range:NSMakeRange(searchFrom, content.length - searchFrom)];
+		if (beginRange.location == NSNotFound) {
+			break;
+		}
+		NSUInteger bodyStart = beginRange.location + beginRange.length;
+		NSRange endRange = [content rangeOfString:endMarker options:0 range:NSMakeRange(bodyStart, content.length - bodyStart)];
+		if (endRange.location == NSNotFound) {
+			break;
+		}
+		NSString *base64Section = [content substringWithRange:NSMakeRange(bodyStart, endRange.location - bodyStart)];
+		NSArray<NSString *> *components = [base64Section componentsSeparatedByCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
+		NSString *base64Content = [components componentsJoinedByString:@""];
+		NSData *der = [[NSData alloc] initWithBase64EncodedString:base64Content options:0];
+		if (der != nil) {
+			SecCertificateRef certificate = SecCertificateCreateWithData(NULL, (__bridge CFDataRef)der);
+			if (certificate != NULL) {
+				[certificates addObject:(__bridge id)certificate];
+				CFRelease(certificate);
+			}
+		}
+		searchFrom = endRange.location + endRange.length;
+	}
+	return certificates;
+}
+
+static bool box_evaluate_trust(SecTrustRef trustRef, NSArray *anchors, bool anchor_only, NSDate *verifyDate) {
+	if (trustRef == NULL) {
+		return false;
+	}
+	if (verifyDate != nil && SecTrustSetVerifyDate(trustRef, (__bridge CFDateRef)verifyDate) != errSecSuccess) {
+		return false;
+	}
+	if (anchors.count > 0 || anchor_only) {
+		CFMutableArrayRef anchorArray = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
+		for (id certificate in anchors) {
+			CFArrayAppendValue(anchorArray, (__bridge const void *)certificate);
+		}
+		SecTrustSetAnchorCertificates(trustRef, anchorArray);
+		SecTrustSetAnchorCertificatesOnly(trustRef, anchor_only);
+		CFRelease(anchorArray);
+	}
+	CFErrorRef error = NULL;
+	bool result = SecTrustEvaluateWithError(trustRef, &error);
+	if (error != NULL) {
+		CFRelease(error);
+	}
+	return result;
+}
+
+static NSDate *box_apple_http_verify_date_for_request(NSURLRequest *request) {
+	if (request == nil) {
+		return nil;
+	}
+	id value = [NSURLProtocol propertyForKey:box_apple_http_verify_time_key inRequest:request];
+	if (![value isKindOfClass:[NSNumber class]]) {
+		return nil;
+	}
+	return [NSDate dateWithTimeIntervalSince1970:[(NSNumber *)value longLongValue] / 1000.0];
+}
+
+static box_apple_http_response_t *box_create_response(NSHTTPURLResponse *httpResponse, NSData *data) {
+	box_apple_http_response_t *response = calloc(1, sizeof(box_apple_http_response_t));
+	response->status_code = (int)httpResponse.statusCode;
+	NSDictionary *headers = httpResponse.allHeaderFields;
+	response->header_count = headers.count;
+	if (response->header_count > 0) {
+		response->header_keys = calloc(response->header_count, sizeof(char *));
+		response->header_values = calloc(response->header_count, sizeof(char *));
+		NSUInteger index = 0;
+		for (id key in headers) {
+			NSString *keyString = [[key description] copy];
+			NSString *valueString = [[headers[key] description] copy];
+			response->header_keys[index] = strdup(keyString.UTF8String ?: "");
+			response->header_values[index] = strdup(valueString.UTF8String ?: "");
+			index++;
+		}
+	}
+	if (data.length > 0) {
+		response->body_len = data.length;
+		response->body = malloc(data.length);
+		memcpy(response->body, data.bytes, data.length);
+	}
+	return response;
+}
+
+@interface BoxAppleHTTPSessionDelegate : NSObject <NSURLSessionTaskDelegate, NSURLSessionDataDelegate>
+@property(nonatomic, assign) BOOL insecure;
+@property(nonatomic, assign) BOOL anchorOnly;
+@property(nonatomic, strong) NSArray *anchors;
+@property(nonatomic, strong) NSData *pinnedPublicKeyHashes;
+@end
+
+@implementation BoxAppleHTTPSessionDelegate
+
+- (void)URLSession:(NSURLSession *)session
+              task:(NSURLSessionTask *)task
+willPerformHTTPRedirection:(NSHTTPURLResponse *)response
+        newRequest:(NSURLRequest *)request
+ completionHandler:(void (^)(NSURLRequest * _Nullable))completionHandler {
+	completionHandler(nil);
+}
+
+- (void)URLSession:(NSURLSession *)session
+              task:(NSURLSessionTask *)task
+didReceiveChallenge:(NSURLAuthenticationChallenge *)challenge
+ completionHandler:(void (^)(NSURLSessionAuthChallengeDisposition disposition, NSURLCredential * _Nullable credential))completionHandler {
+	if (![challenge.protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust]) {
+		completionHandler(NSURLSessionAuthChallengePerformDefaultHandling, nil);
+		return;
+	}
+	SecTrustRef trustRef = challenge.protectionSpace.serverTrust;
+	if (trustRef == NULL) {
+		completionHandler(NSURLSessionAuthChallengeCancelAuthenticationChallenge, nil);
+		return;
+	}
+	NSDate *verifyDate = box_apple_http_verify_date_for_request(task.currentRequest ?: task.originalRequest);
+	BOOL needsCustomHandling = self.insecure || self.anchorOnly || self.anchors.count > 0 || self.pinnedPublicKeyHashes.length > 0 || verifyDate != nil;
+	if (!needsCustomHandling) {
+		completionHandler(NSURLSessionAuthChallengePerformDefaultHandling, nil);
+		return;
+	}
+	BOOL ok = YES;
+	if (!self.insecure) {
+		ok = box_evaluate_trust(trustRef, self.anchors, self.anchorOnly, verifyDate);
+	}
+	if (ok && self.pinnedPublicKeyHashes.length > 0) {
+		CFArrayRef certificateChain = SecTrustCopyCertificateChain(trustRef);
+		SecCertificateRef leafCertificate = NULL;
+		if (certificateChain != NULL && CFArrayGetCount(certificateChain) > 0) {
+			leafCertificate = (SecCertificateRef)CFArrayGetValueAtIndex(certificateChain, 0);
+		}
+		if (leafCertificate == NULL) {
+			ok = NO;
+		} else {
+			NSData *leafData = CFBridgingRelease(SecCertificateCopyData(leafCertificate));
+			char *pinError = box_apple_http_verify_public_key_sha256(
+				(uint8_t *)self.pinnedPublicKeyHashes.bytes,
+				self.pinnedPublicKeyHashes.length,
+				(uint8_t *)leafData.bytes,
+				leafData.length
+			);
+			if (pinError != NULL) {
+				free(pinError);
+				ok = NO;
+			}
+		}
+		if (certificateChain != NULL) {
+			CFRelease(certificateChain);
+		}
+	}
+	if (!ok) {
+		completionHandler(NSURLSessionAuthChallengeCancelAuthenticationChallenge, nil);
+		return;
+	}
+	completionHandler(NSURLSessionAuthChallengeUseCredential, [NSURLCredential credentialForTrust:trustRef]);
+}
+
+@end
+
+@interface BoxAppleHTTPSessionHandle : NSObject
+@property(nonatomic, strong) NSURLSession *session;
+@property(nonatomic, strong) BoxAppleHTTPSessionDelegate *delegate;
+@end
+
+@implementation BoxAppleHTTPSessionHandle
+@end
+
+box_apple_http_session_t *box_apple_http_session_create(
+	const box_apple_http_session_config_t *config,
+	char **error_out
+) {
+	@autoreleasepool {
+		NSURLSessionConfiguration *sessionConfig = [NSURLSessionConfiguration ephemeralSessionConfiguration];
+		sessionConfig.URLCache = nil;
+		sessionConfig.HTTPCookieStorage = nil;
+		sessionConfig.URLCredentialStorage = nil;
+		sessionConfig.HTTPShouldSetCookies = NO;
+		if (config != NULL && config->proxy_host != NULL && config->proxy_port > 0) {
+			NSMutableDictionary *proxyDictionary = [NSMutableDictionary dictionary];
+			proxyDictionary[(__bridge NSString *)kCFStreamPropertySOCKSProxyHost] = [NSString stringWithUTF8String:config->proxy_host];
+			proxyDictionary[(__bridge NSString *)kCFStreamPropertySOCKSProxyPort] = @(config->proxy_port);
+			proxyDictionary[(__bridge NSString *)kCFStreamPropertySOCKSVersion] = (__bridge NSString *)kCFStreamSocketSOCKSVersion5;
+			if (config->proxy_username != NULL) {
+				proxyDictionary[(__bridge NSString *)kCFStreamPropertySOCKSUser] = [NSString stringWithUTF8String:config->proxy_username];
+			}
+			if (config->proxy_password != NULL) {
+				proxyDictionary[(__bridge NSString *)kCFStreamPropertySOCKSPassword] = [NSString stringWithUTF8String:config->proxy_password];
+			}
+			sessionConfig.connectionProxyDictionary = proxyDictionary;
+		}
+		if (config != NULL && config->min_tls_version != 0) {
+			sessionConfig.TLSMinimumSupportedProtocolVersion = (tls_protocol_version_t)config->min_tls_version;
+		}
+		if (config != NULL && config->max_tls_version != 0) {
+			sessionConfig.TLSMaximumSupportedProtocolVersion = (tls_protocol_version_t)config->max_tls_version;
+		}
+		BoxAppleHTTPSessionDelegate *delegate = [[BoxAppleHTTPSessionDelegate alloc] init];
+		if (config != NULL) {
+			delegate.insecure = config->insecure;
+			delegate.anchorOnly = config->anchor_only;
+			delegate.anchors = box_parse_certificates_from_pem(config->anchor_pem, config->anchor_pem_len);
+			if (config->pinned_public_key_sha256 != NULL && config->pinned_public_key_sha256_len > 0) {
+				delegate.pinnedPublicKeyHashes = [NSData dataWithBytes:config->pinned_public_key_sha256 length:config->pinned_public_key_sha256_len];
+			}
+		}
+		NSURLSession *session = [NSURLSession sessionWithConfiguration:sessionConfig delegate:delegate delegateQueue:nil];
+		if (session == nil) {
+			box_set_error_string(error_out, @"create URLSession");
+			return NULL;
+		}
+		BoxAppleHTTPSessionHandle *handle = [[BoxAppleHTTPSessionHandle alloc] init];
+		handle.session = session;
+		handle.delegate = delegate;
+		box_apple_http_session_t *sessionHandle = calloc(1, sizeof(box_apple_http_session_t));
+		sessionHandle->handle = (__bridge_retained void *)handle;
+		return sessionHandle;
+	}
+}
+
+void box_apple_http_session_retire(box_apple_http_session_t *session) {
+	if (session == NULL || session->handle == NULL) {
+		return;
+	}
+	BoxAppleHTTPSessionHandle *handle = (__bridge_transfer BoxAppleHTTPSessionHandle *)session->handle;
+	[handle.session finishTasksAndInvalidate];
+	free(session);
+}
+
+void box_apple_http_session_close(box_apple_http_session_t *session) {
+	if (session == NULL || session->handle == NULL) {
+		return;
+	}
+	BoxAppleHTTPSessionHandle *handle = (__bridge_transfer BoxAppleHTTPSessionHandle *)session->handle;
+	[handle.session invalidateAndCancel];
+	free(session);
+}
+
+box_apple_http_task_t *box_apple_http_session_send_async(
+	box_apple_http_session_t *session,
+	const box_apple_http_request_t *request,
+	char **error_out
+) {
+	@autoreleasepool {
+		if (session == NULL || session->handle == NULL || request == NULL || request->method == NULL || request->url == NULL) {
+			box_set_error_string(error_out, @"invalid apple HTTP request");
+			return NULL;
+		}
+		BoxAppleHTTPSessionHandle *handle = (__bridge BoxAppleHTTPSessionHandle *)session->handle;
+		NSURL *requestURL = [NSURL URLWithString:[NSString stringWithUTF8String:request->url]];
+		if (requestURL == nil) {
+			box_set_error_string(error_out, @"invalid request URL");
+			return NULL;
+		}
+		NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:requestURL];
+		urlRequest.HTTPMethod = [NSString stringWithUTF8String:request->method];
+		for (size_t index = 0; index < request->header_count; index++) {
+			const char *key = request->header_keys[index];
+			const char *value = request->header_values[index];
+			if (key == NULL || value == NULL) {
+				continue;
+			}
+			[urlRequest addValue:[NSString stringWithUTF8String:value] forHTTPHeaderField:[NSString stringWithUTF8String:key]];
+		}
+		if (request->body != NULL && request->body_len > 0) {
+			urlRequest.HTTPBody = [NSData dataWithBytes:request->body length:request->body_len];
+		}
+		if (request->has_verify_time) {
+			[NSURLProtocol setProperty:@(request->verify_time_unix_millis) forKey:box_apple_http_verify_time_key inRequest:urlRequest];
+		}
+		box_apple_http_task_t *task = calloc(1, sizeof(box_apple_http_task_t));
+		dispatch_semaphore_t doneSemaphore = dispatch_semaphore_create(0);
+		task->done_semaphore = (__bridge_retained void *)doneSemaphore;
+		NSURLSessionDataTask *dataTask = [handle.session dataTaskWithRequest:urlRequest completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
+			if (error != nil) {
+				box_set_error_from_nserror(&task->error, error);
+			} else if (![response isKindOfClass:[NSHTTPURLResponse class]]) {
+				box_set_error_string(&task->error, @"unexpected HTTP response type");
+			} else {
+				task->response = box_create_response((NSHTTPURLResponse *)response, data ?: [NSData data]);
+			}
+			dispatch_semaphore_signal((__bridge dispatch_semaphore_t)task->done_semaphore);
+		}];
+		if (dataTask == nil) {
+			box_set_error_string(error_out, @"create data task");
+			box_apple_http_task_close(task);
+			return NULL;
+		}
+		task->task = (__bridge_retained void *)dataTask;
+		[dataTask resume];
+		return task;
+	}
+}
+
+box_apple_http_response_t *box_apple_http_task_wait(
+	box_apple_http_task_t *task,
+	char **error_out
+) {
+	if (task == NULL || task->done_semaphore == NULL) {
+		box_set_error_string(error_out, @"invalid apple HTTP task");
+		return NULL;
+	}
+	dispatch_semaphore_wait((__bridge dispatch_semaphore_t)task->done_semaphore, DISPATCH_TIME_FOREVER);
+	if (task->error != NULL) {
+		box_set_error_string(error_out, [NSString stringWithUTF8String:task->error]);
+		return NULL;
+	}
+	return task->response;
+}
+
+void box_apple_http_task_cancel(box_apple_http_task_t *task) {
+	if (task == NULL || task->task == NULL) {
+		return;
+	}
+	NSURLSessionTask *nsTask = (__bridge NSURLSessionTask *)task->task;
+	[nsTask cancel];
+}
+
+void box_apple_http_task_close(box_apple_http_task_t *task) {
+	if (task == NULL) {
+		return;
+	}
+	if (task->task != NULL) {
+		__unused NSURLSessionTask *nsTask = (__bridge_transfer NSURLSessionTask *)task->task;
+		task->task = NULL;
+	}
+	if (task->done_semaphore != NULL) {
+		__unused dispatch_semaphore_t doneSemaphore = (__bridge_transfer dispatch_semaphore_t)task->done_semaphore;
+		task->done_semaphore = NULL;
+	}
+	free(task->error);
+	free(task);
+}
+
+void box_apple_http_response_free(box_apple_http_response_t *response) {
+	if (response == NULL) {
+		return;
+	}
+	for (size_t index = 0; index < response->header_count; index++) {
+		free(response->header_keys[index]);
+		free(response->header_values[index]);
+	}
+	free(response->header_keys);
+	free(response->header_values);
+	free(response->body);
+	free(response->error);
+	free(response);
+}

sing-box/common/httpclient/apple_transport_darwin_test.go

@@ -0,0 +1,855 @@
+//go:build darwin && cgo
+
+package httpclient
+
+import (
+	"bytes"
+	"context"
+	"crypto/sha256"
+	stdtls "crypto/tls"
+	"crypto/x509"
+	"errors"
+	"io"
+	"net"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"slices"
+	"strconv"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/sagernet/sing-box/adapter"
+	boxTLS "github.com/sagernet/sing-box/common/tls"
+	"github.com/sagernet/sing-box/log"
+	"github.com/sagernet/sing-box/option"
+	"github.com/sagernet/sing-box/route"
+	"github.com/sagernet/sing/common/json/badoption"
+	M "github.com/sagernet/sing/common/metadata"
+	N "github.com/sagernet/sing/common/network"
+	"github.com/sagernet/sing/service"
+)
+
+const appleHTTPTestTimeout = 5 * time.Second
+
+const appleHTTPRecoveryLoops = 5
+
+type appleHTTPTestDialer struct {
+	dialer   net.Dialer
+	listener net.ListenConfig
+	hostMap  map[string]string
+}
+
+type appleHTTPObservedRequest struct {
+	method     string
+	body       string
+	host       string
+	values     []string
+	protoMajor int
+}
+
+type appleHTTPTestServer struct {
+	server         *httptest.Server
+	baseURL        string
+	dialHost       string
+	certificate    stdtls.Certificate
+	certificatePEM string
+	publicKeyHash  []byte
+}
+
+func TestNewAppleSessionConfig(t *testing.T) {
+	serverCertificate, serverCertificatePEM := newAppleHTTPTestCertificate(t, "localhost")
+	serverHash := certificatePublicKeySHA256(t, serverCertificate.Certificate[0])
+	otherHash := bytes.Repeat([]byte{0x7f}, applePinnedHashSize)
+
+	testCases := []struct {
+		name    string
+		options option.HTTPClientOptions
+		check   func(t *testing.T, config appleSessionConfig)
+		wantErr string
+	}{
+		{
+			name: "success with certificate anchors",
+			options: option.HTTPClientOptions{
+				Version: 2,
+				DialerOptions: option.DialerOptions{
+					ConnectTimeout: badoption.Duration(2 * time.Second),
+				},
+				OutboundTLSOptionsContainer: option.OutboundTLSOptionsContainer{
+					TLS: &option.OutboundTLSOptions{
+						Enabled:     true,
+						ServerName:  "localhost",
+						MinVersion:  "1.2",
+						MaxVersion:  "1.3",
+						Certificate: badoption.Listable[string]{serverCertificatePEM},
+					},
+				},
+			},
+			check: func(t *testing.T, config appleSessionConfig) {
+				t.Helper()
+				if config.serverName != "localhost" {
+					t.Fatalf("unexpected server name: %q", config.serverName)
+				}
+				if config.minVersion != stdtls.VersionTLS12 {
+					t.Fatalf("unexpected min version: %x", config.minVersion)
+				}
+				if config.maxVersion != stdtls.VersionTLS13 {
+					t.Fatalf("unexpected max version: %x", config.maxVersion)
+				}
+				if config.insecure {
+					t.Fatal("unexpected insecure flag")
+				}
+				if !config.anchorOnly {
+					t.Fatal("expected anchor_only")
+				}
+				if !strings.Contains(config.anchorPEM, "BEGIN CERTIFICATE") {
+					t.Fatalf("unexpected anchor pem: %q", config.anchorPEM)
+				}
+				if len(config.pinnedPublicKeySHA256s) != 0 {
+					t.Fatalf("unexpected pinned hashes: %d", len(config.pinnedPublicKeySHA256s))
+				}
+			},
+		},
+		{
+			name: "success with flattened pins",
+			options: option.HTTPClientOptions{
+				Version: 2,
+				OutboundTLSOptionsContainer: option.OutboundTLSOptionsContainer{
+					TLS: &option.OutboundTLSOptions{
+						Enabled:                    true,
+						Insecure:                   true,
+						CertificatePublicKeySHA256: badoption.Listable[[]byte]{serverHash, otherHash},
+					},
+				},
+			},
+			check: func(t *testing.T, config appleSessionConfig) {
+				t.Helper()
+				if !config.insecure {
+					t.Fatal("expected insecure flag")
+				}
+				if len(config.pinnedPublicKeySHA256s) != 2*applePinnedHashSize {
+					t.Fatalf("unexpected flattened pin length: %d", len(config.pinnedPublicKeySHA256s))
+				}
+				if !bytes.Equal(config.pinnedPublicKeySHA256s[:applePinnedHashSize], serverHash) {
+					t.Fatal("unexpected first pin")
+				}
+				if !bytes.Equal(config.pinnedPublicKeySHA256s[applePinnedHashSize:], otherHash) {
+					t.Fatal("unexpected second pin")
+				}
+				if config.anchorPEM != "" {
+					t.Fatalf("unexpected anchor pem: %q", config.anchorPEM)
+				}
+				if config.anchorOnly {
+					t.Fatal("unexpected anchor_only")
+				}
+			},
+		},
+		{
+			name:    "http11 unsupported",
+			options: option.HTTPClientOptions{Version: 1},
+			wantErr: "HTTP/1.1 is unsupported in Apple HTTP engine",
+		},
+		{
+			name:    "http3 unsupported",
+			options: option.HTTPClientOptions{Version: 3},
+			wantErr: "HTTP/3 is unsupported in Apple HTTP engine",
+		},
+		{
+			name:    "unknown version",
+			options: option.HTTPClientOptions{Version: 9},
+			wantErr: "unknown HTTP version: 9",
+		},
+		{
+			name: "disable version fallback unsupported",
+			options: option.HTTPClientOptions{
+				DisableVersionFallback: true,
+			},
+			wantErr: "disable_version_fallback is unsupported in Apple HTTP engine",
+		},
+		{
+			name: "http2 options unsupported",
+			options: option.HTTPClientOptions{
+				HTTP2Options: option.HTTP2Options{
+					IdleTimeout: badoption.Duration(time.Second),
+				},
+			},
+			wantErr: "HTTP/2 options are unsupported in Apple HTTP engine",
+		},
+		{
+			name: "quic options unsupported",
+			options: option.HTTPClientOptions{
+				HTTP3Options: option.QUICOptions{
+					InitialPacketSize: 1200,
+				},
+			},
+			wantErr: "QUIC options are unsupported in Apple HTTP engine",
+		},
+		{
+			name: "tls engine unsupported",
+			options: option.HTTPClientOptions{
+				OutboundTLSOptionsContainer: option.OutboundTLSOptionsContainer{
+					TLS: &option.OutboundTLSOptions{Engine: "go"},
+				},
+			},
+			wantErr: "tls.engine is unsupported in Apple HTTP engine",
+		},
+		{
+			name: "disable sni unsupported",
+			options: option.HTTPClientOptions{
+				OutboundTLSOptionsContainer: option.OutboundTLSOptionsContainer{
+					TLS: &option.OutboundTLSOptions{DisableSNI: true},
+				},
+			},
+			wantErr: "disable_sni is unsupported in Apple HTTP engine",
+		},
+		{
+			name: "alpn unsupported",
+			options: option.HTTPClientOptions{
+				OutboundTLSOptionsContainer: option.OutboundTLSOptionsContainer{
+					TLS: &option.OutboundTLSOptions{
+						ALPN: badoption.Listable[string]{"h2"},
+					},
+				},
+			},
+			wantErr: "tls.alpn is unsupported in Apple HTTP engine",
+		},
+		{
+			name: "cipher suites unsupported",
+			options: option.HTTPClientOptions{
+				OutboundTLSOptionsContainer: option.OutboundTLSOptionsContainer{
+					TLS: &option.OutboundTLSOptions{
+						CipherSuites: badoption.Listable[string]{"TLS_AES_128_GCM_SHA256"},
+					},
+				},
+			},
+			wantErr: "cipher_suites is unsupported in Apple HTTP engine",
+		},
+		{
+			name: "curve preferences unsupported",
+			options: option.HTTPClientOptions{
+				OutboundTLSOptionsContainer: option.OutboundTLSOptionsContainer{
+					TLS: &option.OutboundTLSOptions{
+						CurvePreferences: badoption.Listable[option.CurvePreference]{option.CurvePreference(option.X25519)},
+					},
+				},
+			},
+			wantErr: "curve_preferences is unsupported in Apple HTTP engine",
+		},
+		{
+			name: "client certificate unsupported",
+			options: option.HTTPClientOptions{
+				OutboundTLSOptionsContainer: option.OutboundTLSOptionsContainer{
+					TLS: &option.OutboundTLSOptions{
+						ClientCertificate: badoption.Listable[string]{"client-certificate"},
+						ClientKey:         badoption.Listable[string]{"client-key"},
+					},
+				},
+			},
+			wantErr: "client certificate is unsupported in Apple HTTP engine",
+		},
+		{
+			name: "tls fragment unsupported",
+			options: option.HTTPClientOptions{
+				OutboundTLSOptionsContainer: option.OutboundTLSOptionsContainer{
+					TLS: &option.OutboundTLSOptions{Fragment: true},
+				},
+			},
+			wantErr: "tls fragment is unsupported in Apple HTTP engine",
+		},
+		{
+			name: "ktls unsupported",
+			options: option.HTTPClientOptions{
+				OutboundTLSOptionsContainer: option.OutboundTLSOptionsContainer{
+					TLS: &option.OutboundTLSOptions{KernelTx: true},
+				},
+			},
+			wantErr: "ktls is unsupported in Apple HTTP engine",
+		},
+		{
+			name: "ech unsupported",
+			options: option.HTTPClientOptions{
+				OutboundTLSOptionsContainer: option.OutboundTLSOptionsContainer{
+					TLS: &option.OutboundTLSOptions{
+						ECH: &option.OutboundECHOptions{Enabled: true},
+					},
+				},
+			},
+			wantErr: "ech is unsupported in Apple HTTP engine",
+		},
+		{
+			name: "utls unsupported",
+			options: option.HTTPClientOptions{
+				OutboundTLSOptionsContainer: option.OutboundTLSOptionsContainer{
+					TLS: &option.OutboundTLSOptions{
+						UTLS: &option.OutboundUTLSOptions{Enabled: true},
+					},
+				},
+			},
+			wantErr: "utls is unsupported in Apple HTTP engine",
+		},
+		{
+			name: "reality unsupported",
+			options: option.HTTPClientOptions{
+				OutboundTLSOptionsContainer: option.OutboundTLSOptionsContainer{
+					TLS: &option.OutboundTLSOptions{
+						Reality: &option.OutboundRealityOptions{Enabled: true},
+					},
+				},
+			},
+			wantErr: "reality is unsupported in Apple HTTP engine",
+		},
+		{
+			name: "pin and certificate conflict",
+			options: option.HTTPClientOptions{
+				OutboundTLSOptionsContainer: option.OutboundTLSOptionsContainer{
+					TLS: &option.OutboundTLSOptions{
+						Certificate:                badoption.Listable[string]{serverCertificatePEM},
+						CertificatePublicKeySHA256: badoption.Listable[[]byte]{serverHash},
+					},
+				},
+			},
+			wantErr: "certificate_public_key_sha256 is conflict with certificate or certificate_path",
+		},
+		{
+			name: "invalid min version",
+			options: option.HTTPClientOptions{
+				OutboundTLSOptionsContainer: option.OutboundTLSOptionsContainer{
+					TLS: &option.OutboundTLSOptions{MinVersion: "bogus"},
+				},
+			},
+			wantErr: "parse min_version",
+		},
+		{
+			name: "invalid max version",
+			options: option.HTTPClientOptions{
+				OutboundTLSOptionsContainer: option.OutboundTLSOptionsContainer{
+					TLS: &option.OutboundTLSOptions{MaxVersion: "bogus"},
+				},
+			},
+			wantErr: "parse max_version",
+		},
+		{
+			name: "invalid pin length",
+			options: option.HTTPClientOptions{
+				OutboundTLSOptionsContainer: option.OutboundTLSOptionsContainer{
+					TLS: &option.OutboundTLSOptions{
+						CertificatePublicKeySHA256: badoption.Listable[[]byte]{{0x01, 0x02}},
+					},
+				},
+			},
+			wantErr: "invalid certificate_public_key_sha256 length: 2",
+		},
+	}
+
+	for _, testCase := range testCases {
+		t.Run(testCase.name, func(t *testing.T) {
+			config, err := newAppleSessionConfig(context.Background(), testCase.options)
+			if testCase.wantErr != "" {
+				if err == nil {
+					t.Fatal("expected error")
+				}
+				if !strings.Contains(err.Error(), testCase.wantErr) {
+					t.Fatalf("unexpected error: %v", err)
+				}
+				return
+			}
+			if err != nil {
+				t.Fatal(err)
+			}
+			if testCase.check != nil {
+				testCase.check(t, config)
+			}
+		})
+	}
+}
+
+func TestAppleTransportVerifyPublicKeySHA256(t *testing.T) {
+	serverCertificate, _ := newAppleHTTPTestCertificate(t, "localhost")
+	goodHash := certificatePublicKeySHA256(t, serverCertificate.Certificate[0])
+	badHash := append([]byte(nil), goodHash...)
+	badHash[0] ^= 0xff
+
+	err := verifyApplePinnedPublicKeySHA256(goodHash, serverCertificate.Certificate[0])
+	if err != nil {
+		t.Fatalf("expected correct pin to succeed: %v", err)
+	}
+
+	err = verifyApplePinnedPublicKeySHA256(badHash, serverCertificate.Certificate[0])
+	if err == nil {
+		t.Fatal("expected incorrect pin to fail")
+	}
+	if !strings.Contains(err.Error(), "unrecognized remote public key") {
+		t.Fatalf("unexpected pin mismatch error: %v", err)
+	}
+
+	err = verifyApplePinnedPublicKeySHA256(goodHash[:applePinnedHashSize-1], serverCertificate.Certificate[0])
+	if err == nil {
+		t.Fatal("expected malformed pin list to fail")
+	}
+	if !strings.Contains(err.Error(), "invalid pinned public key list") {
+		t.Fatalf("unexpected malformed pin error: %v", err)
+	}
+}
+
+func TestAppleTransportRoundTripHTTPS(t *testing.T) {
+	requests := make(chan appleHTTPObservedRequest, 1)
+	server := startAppleHTTPTestServer(t, func(w http.ResponseWriter, r *http.Request) {
+		body, err := io.ReadAll(r.Body)
+		if err != nil {
+			t.Error(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		requests <- appleHTTPObservedRequest{
+			method:     r.Method,
+			body:       string(body),
+			host:       r.Host,
+			values:     append([]string(nil), r.Header.Values("X-Test")...),
+			protoMajor: r.ProtoMajor,
+		}
+		w.Header().Set("X-Reply", "apple")
+		w.WriteHeader(http.StatusCreated)
+		_, _ = w.Write([]byte("response body"))
+	})
+
+	transport := newAppleHTTPTestTransport(t, server, option.HTTPClientOptions{
+		Version: 2,
+		OutboundTLSOptionsContainer: option.OutboundTLSOptionsContainer{
+			TLS: appleHTTPServerTLSOptions(server),
+		},
+	})
+
+	request, err := http.NewRequest(http.MethodPost, server.URL("/roundtrip"), bytes.NewReader([]byte("request body")))
+	if err != nil {
+		t.Fatal(err)
+	}
+	request.Header.Add("X-Test", "one")
+	request.Header.Add("X-Test", "two")
+	request.Host = "custom.example"
+
+	response, err := transport.RoundTrip(request)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer response.Body.Close()
+
+	responseBody := readResponseBody(t, response)
+	if response.StatusCode != http.StatusCreated {
+		t.Fatalf("unexpected status code: %d", response.StatusCode)
+	}
+	if response.Status != "201 Created" {
+		t.Fatalf("unexpected status: %q", response.Status)
+	}
+	if response.Header.Get("X-Reply") != "apple" {
+		t.Fatalf("unexpected response header: %q", response.Header.Get("X-Reply"))
+	}
+	if responseBody != "response body" {
+		t.Fatalf("unexpected response body: %q", responseBody)
+	}
+	if response.ContentLength != int64(len(responseBody)) {
+		t.Fatalf("unexpected content length: %d", response.ContentLength)
+	}
+
+	observed := waitObservedRequest(t, requests)
+	if observed.method != http.MethodPost {
+		t.Fatalf("unexpected method: %q", observed.method)
+	}
+	if observed.body != "request body" {
+		t.Fatalf("unexpected request body: %q", observed.body)
+	}
+	if observed.host != "custom.example" {
+		t.Fatalf("unexpected host: %q", observed.host)
+	}
+	if observed.protoMajor != 2 {
+		t.Fatalf("expected HTTP/2 request, got HTTP/%d", observed.protoMajor)
+	}
+	var normalizedValues []string
+	for _, value := range observed.values {
+		for _, part := range strings.Split(value, ",") {
+			normalizedValues = append(normalizedValues, strings.TrimSpace(part))
+		}
+	}
+	slices.Sort(normalizedValues)
+	if !slices.Equal(normalizedValues, []string{"one", "two"}) {
+		t.Fatalf("unexpected header values: %#v", observed.values)
+	}
+}
+
+func TestAppleTransportPinnedPublicKey(t *testing.T) {
+	server := startAppleHTTPTestServer(t, func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write([]byte("pinned"))
+	})
+
+	goodTransport := newAppleHTTPTestTransport(t, server, option.HTTPClientOptions{
+		Version: 2,
+		OutboundTLSOptionsContainer: option.OutboundTLSOptionsContainer{
+			TLS: &option.OutboundTLSOptions{
+				Enabled:                    true,
+				ServerName:                 "localhost",
+				Insecure:                   true,
+				CertificatePublicKeySHA256: badoption.Listable[[]byte]{server.publicKeyHash},
+			},
+		},
+	})
+
+	response, err := goodTransport.RoundTrip(newAppleHTTPRequest(t, http.MethodGet, server.URL("/good"), nil))
+	if err != nil {
+		t.Fatalf("expected pinned request to succeed: %v", err)
+	}
+	response.Body.Close()
+
+	badHash := append([]byte(nil), server.publicKeyHash...)
+	badHash[0] ^= 0xff
+	badTransport := newAppleHTTPTestTransport(t, server, option.HTTPClientOptions{
+		Version: 2,
+		OutboundTLSOptionsContainer: option.OutboundTLSOptionsContainer{
+			TLS: &option.OutboundTLSOptions{
+				Enabled:                    true,
+				ServerName:                 "localhost",
+				Insecure:                   true,
+				CertificatePublicKeySHA256: badoption.Listable[[]byte]{badHash},
+			},
+		},
+	})
+
+	response, err = badTransport.RoundTrip(newAppleHTTPRequest(t, http.MethodGet, server.URL("/bad"), nil))
+	if err == nil {
+		response.Body.Close()
+		t.Fatal("expected incorrect pinned public key to fail")
+	}
+}
+
+func TestAppleTransportGuardrails(t *testing.T) {
+	testCases := []struct {
+		name          string
+		options       option.HTTPClientOptions
+		buildRequest  func(t *testing.T) *http.Request
+		wantErrSubstr string
+	}{
+		{
+			name: "websocket upgrade rejected",
+			options: option.HTTPClientOptions{
+				Version: 2,
+			},
+			buildRequest: func(t *testing.T) *http.Request {
+				t.Helper()
+				request := newAppleHTTPRequest(t, http.MethodGet, "https://localhost/socket", nil)
+				request.Header.Set("Connection", "Upgrade")
+				request.Header.Set("Upgrade", "websocket")
+				return request
+			},
+			wantErrSubstr: "HTTP upgrade requests are unsupported in Apple HTTP engine",
+		},
+		{
+			name: "missing url rejected",
+			options: option.HTTPClientOptions{
+				Version: 2,
+			},
+			buildRequest: func(t *testing.T) *http.Request {
+				t.Helper()
+				return &http.Request{Method: http.MethodGet}
+			},
+			wantErrSubstr: "missing request URL",
+		},
+		{
+			name: "unsupported scheme rejected",
+			options: option.HTTPClientOptions{
+				Version: 2,
+			},
+			buildRequest: func(t *testing.T) *http.Request {
+				t.Helper()
+				return newAppleHTTPRequest(t, http.MethodGet, "ftp://localhost/file", nil)
+			},
+			wantErrSubstr: "unsupported URL scheme: ftp",
+		},
+		{
+			name: "server name mismatch rejected",
+			options: option.HTTPClientOptions{
+				Version: 2,
+				OutboundTLSOptionsContainer: option.OutboundTLSOptionsContainer{
+					TLS: &option.OutboundTLSOptions{
+						Enabled:    true,
+						ServerName: "example.com",
+					},
+				},
+			},
+			buildRequest: func(t *testing.T) *http.Request {
+				t.Helper()
+				return newAppleHTTPRequest(t, http.MethodGet, "https://localhost/path", nil)
+			},
+			wantErrSubstr: "tls.server_name is unsupported in Apple HTTP engine unless it matches request host",
+		},
+	}
+
+	for _, testCase := range testCases {
+		t.Run(testCase.name, func(t *testing.T) {
+			transport := newAppleHTTPTestTransport(t, nil, testCase.options)
+			response, err := transport.RoundTrip(testCase.buildRequest(t))
+			if err == nil {
+				response.Body.Close()
+				t.Fatal("expected error")
+			}
+			if !strings.Contains(err.Error(), testCase.wantErrSubstr) {
+				t.Fatalf("unexpected error: %v", err)
+			}
+		})
+	}
+}
+
+func TestAppleTransportCancellationRecovery(t *testing.T) {
+	server := startAppleHTTPTestServer(t, func(w http.ResponseWriter, r *http.Request) {
+		switch r.URL.Path {
+		case "/block":
+			select {
+			case <-r.Context().Done():
+				return
+			case <-time.After(appleHTTPTestTimeout):
+				http.Error(w, "request was not canceled", http.StatusGatewayTimeout)
+			}
+		default:
+			w.WriteHeader(http.StatusOK)
+			_, _ = w.Write([]byte("ok"))
+		}
+	})
+
+	transport := newAppleHTTPTestTransport(t, server, option.HTTPClientOptions{
+		Version: 2,
+		OutboundTLSOptionsContainer: option.OutboundTLSOptionsContainer{
+			TLS: appleHTTPServerTLSOptions(server),
+		},
+	})
+
+	for index := 0; index < appleHTTPRecoveryLoops; index++ {
+		ctx, cancel := context.WithTimeout(context.Background(), 100*time.Millisecond)
+		request := newAppleHTTPRequestWithContext(t, ctx, http.MethodGet, server.URL("/block"), nil)
+		response, err := transport.RoundTrip(request)
+		cancel()
+		if err == nil {
+			response.Body.Close()
+			t.Fatalf("iteration %d: expected cancellation error", index)
+		}
+		if !errors.Is(err, context.DeadlineExceeded) && !errors.Is(err, context.Canceled) {
+			t.Fatalf("iteration %d: unexpected cancellation error: %v", index, err)
+		}
+
+		response, err = transport.RoundTrip(newAppleHTTPRequest(t, http.MethodGet, server.URL("/ok"), nil))
+		if err != nil {
+			t.Fatalf("iteration %d: follow-up request failed: %v", index, err)
+		}
+		if body := readResponseBody(t, response); body != "ok" {
+			response.Body.Close()
+			t.Fatalf("iteration %d: unexpected follow-up body: %q", index, body)
+		}
+		response.Body.Close()
+	}
+}
+
+func TestAppleTransportLifecycle(t *testing.T) {
+	server := startAppleHTTPTestServer(t, func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write([]byte("ok"))
+	})
+
+	transport := newAppleHTTPTestTransport(t, server, option.HTTPClientOptions{
+		Version: 2,
+		OutboundTLSOptionsContainer: option.OutboundTLSOptionsContainer{
+			TLS: appleHTTPServerTLSOptions(server),
+		},
+	})
+
+	assertAppleHTTPSucceeds(t, transport, server.URL("/original"))
+
+	transport.CloseIdleConnections()
+	assertAppleHTTPSucceeds(t, transport, server.URL("/reset"))
+
+	innerTransport := transport.(*appleTransport)
+	if err := innerTransport.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+	response, err := innerTransport.RoundTrip(newAppleHTTPRequest(t, http.MethodGet, server.URL("/closed"), nil))
+	if err == nil {
+		response.Body.Close()
+		t.Fatal("expected closed transport to fail")
+	}
+	if !errors.Is(err, net.ErrClosed) {
+		t.Fatalf("unexpected closed transport error: %v", err)
+	}
+}
+
+func startAppleHTTPTestServer(t *testing.T, handler http.HandlerFunc) *appleHTTPTestServer {
+	t.Helper()
+
+	serverCertificate, serverCertificatePEM := newAppleHTTPTestCertificate(t, "localhost")
+	server := httptest.NewUnstartedServer(handler)
+	server.EnableHTTP2 = true
+	server.TLS = &stdtls.Config{
+		Certificates: []stdtls.Certificate{serverCertificate},
+		MinVersion:   stdtls.VersionTLS12,
+	}
+	server.StartTLS()
+	t.Cleanup(server.Close)
+
+	parsedURL, err := url.Parse(server.URL)
+	if err != nil {
+		t.Fatal(err)
+	}
+	baseURL := *parsedURL
+	baseURL.Host = net.JoinHostPort("localhost", parsedURL.Port())
+
+	return &appleHTTPTestServer{
+		server:         server,
+		baseURL:        baseURL.String(),
+		dialHost:       parsedURL.Hostname(),
+		certificate:    serverCertificate,
+		certificatePEM: serverCertificatePEM,
+		publicKeyHash:  certificatePublicKeySHA256(t, serverCertificate.Certificate[0]),
+	}
+}
+
+func (s *appleHTTPTestServer) URL(path string) string {
+	if path == "" {
+		return s.baseURL
+	}
+	if strings.HasPrefix(path, "/") {
+		return s.baseURL + path
+	}
+	return s.baseURL + "/" + path
+}
+
+func newAppleHTTPTestTransport(t *testing.T, server *appleHTTPTestServer, options option.HTTPClientOptions) innerTransport {
+	t.Helper()
+
+	ctx := service.ContextWith[adapter.ConnectionManager](
+		context.Background(),
+		route.NewConnectionManager(log.NewNOPFactory().NewLogger("connection")),
+	)
+	dialer := &appleHTTPTestDialer{
+		hostMap: make(map[string]string),
+	}
+	if server != nil {
+		dialer.hostMap["localhost"] = server.dialHost
+	}
+
+	transport, err := newAppleTransport(ctx, log.NewNOPFactory().NewLogger("httpclient"), dialer, options)
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() {
+		_ = transport.Close()
+	})
+	return transport
+}
+
+func (d *appleHTTPTestDialer) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
+	host := destination.AddrString()
+	if destination.IsDomain() {
+		host = destination.Fqdn
+		if mappedHost, loaded := d.hostMap[host]; loaded {
+			host = mappedHost
+		}
+	}
+	return d.dialer.DialContext(ctx, network, net.JoinHostPort(host, strconv.Itoa(int(destination.Port))))
+}
+
+func (d *appleHTTPTestDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
+	host := destination.AddrString()
+	if destination.IsDomain() {
+		host = destination.Fqdn
+		if mappedHost, loaded := d.hostMap[host]; loaded {
+			host = mappedHost
+		}
+	}
+	if host == "" {
+		host = "127.0.0.1"
+	}
+	return d.listener.ListenPacket(ctx, N.NetworkUDP, net.JoinHostPort(host, strconv.Itoa(int(destination.Port))))
+}
+
+func newAppleHTTPTestCertificate(t *testing.T, serverName string) (stdtls.Certificate, string) {
+	t.Helper()
+
+	privateKeyPEM, certificatePEM, err := boxTLS.GenerateCertificate(nil, nil, time.Now, serverName, time.Now().Add(time.Hour))
+	if err != nil {
+		t.Fatal(err)
+	}
+	certificate, err := stdtls.X509KeyPair(certificatePEM, privateKeyPEM)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return certificate, string(certificatePEM)
+}
+
+func certificatePublicKeySHA256(t *testing.T, certificateDER []byte) []byte {
+	t.Helper()
+
+	certificate, err := x509.ParseCertificate(certificateDER)
+	if err != nil {
+		t.Fatal(err)
+	}
+	publicKeyDER, err := x509.MarshalPKIXPublicKey(certificate.PublicKey)
+	if err != nil {
+		t.Fatal(err)
+	}
+	hashValue := sha256.Sum256(publicKeyDER)
+	return append([]byte(nil), hashValue[:]...)
+}
+
+func appleHTTPServerTLSOptions(server *appleHTTPTestServer) *option.OutboundTLSOptions {
+	return &option.OutboundTLSOptions{
+		Enabled:     true,
+		ServerName:  "localhost",
+		Certificate: badoption.Listable[string]{server.certificatePEM},
+	}
+}
+
+func newAppleHTTPRequest(t *testing.T, method string, rawURL string, body []byte) *http.Request {
+	t.Helper()
+	return newAppleHTTPRequestWithContext(t, context.Background(), method, rawURL, body)
+}
+
+func newAppleHTTPRequestWithContext(t *testing.T, ctx context.Context, method string, rawURL string, body []byte) *http.Request {
+	t.Helper()
+	request, err := http.NewRequestWithContext(ctx, method, rawURL, bytes.NewReader(body))
+	if err != nil {
+		t.Fatal(err)
+	}
+	return request
+}
+
+func waitObservedRequest(t *testing.T, requests <-chan appleHTTPObservedRequest) appleHTTPObservedRequest {
+	t.Helper()
+
+	select {
+	case request := <-requests:
+		return request
+	case <-time.After(appleHTTPTestTimeout):
+		t.Fatal("timed out waiting for observed request")
+		return appleHTTPObservedRequest{}
+	}
+}
+
+func readResponseBody(t *testing.T, response *http.Response) string {
+	t.Helper()
+
+	body, err := io.ReadAll(response.Body)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return string(body)
+}
+
+func assertAppleHTTPSucceeds(t *testing.T, transport http.RoundTripper, rawURL string) {
+	t.Helper()
+
+	response, err := transport.RoundTrip(newAppleHTTPRequest(t, http.MethodGet, rawURL, nil))
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer response.Body.Close()
+	if body := readResponseBody(t, response); body != "ok" {
+		t.Fatalf("unexpected response body: %q", body)
+	}
+}

sing-box/common/httpclient/apple_transport_stub.go

@@ -0,0 +1,16 @@
+//go:build !darwin || !cgo
+
+package httpclient
+
+import (
+	"context"
+
+	"github.com/sagernet/sing-box/option"
+	E "github.com/sagernet/sing/common/exceptions"
+	"github.com/sagernet/sing/common/logger"
+	N "github.com/sagernet/sing/common/network"
+)
+
+func newAppleTransport(ctx context.Context, logger logger.ContextLogger, rawDialer N.Dialer, options option.HTTPClientOptions) (innerTransport, error) {
+	return nil, E.New("Apple HTTP engine is not available on non-Apple platforms")
+}

sing-box/common/httpclient/client.go

@@ -0,0 +1,130 @@
+package httpclient
+
+import (
+	"context"
+	"time"
+
+	"github.com/sagernet/sing-box/common/dialer"
+	"github.com/sagernet/sing-box/common/tls"
+	C "github.com/sagernet/sing-box/constant"
+	"github.com/sagernet/sing-box/option"
+	"github.com/sagernet/sing/common"
+	E "github.com/sagernet/sing/common/exceptions"
+	"github.com/sagernet/sing/common/logger"
+	N "github.com/sagernet/sing/common/network"
+)
+
+func NewTransport(ctx context.Context, logger logger.ContextLogger, tag string, options option.HTTPClientOptions) (*ManagedTransport, error) {
+	rawDialer, err := dialer.NewWithOptions(dialer.Options{
+		Context:          ctx,
+		Options:          options.DialerOptions,
+		RemoteIsDomain:   true,
+		DirectResolver:   options.DirectResolver,
+		ResolverOnDetour: options.ResolveOnDetour,
+		NewDialer:        options.ResolveOnDetour,
+		DefaultOutbound:  options.DefaultOutbound,
+	})
+	if err != nil {
+		return nil, err
+	}
+	headers := options.Headers.Build()
+	host := headers.Get("Host")
+	headers.Del("Host")
+
+	var cheapRebuild bool
+	switch options.Engine {
+	case C.TLSEngineApple:
+		inner, transportErr := newAppleTransport(ctx, logger, rawDialer, options)
+		if transportErr != nil {
+			return nil, transportErr
+		}
+		managedTransport := &ManagedTransport{
+			dialer:  rawDialer,
+			headers: headers,
+			host:    host,
+			tag:     tag,
+			factory: func() (innerTransport, error) {
+				return newAppleTransport(ctx, logger, rawDialer, options)
+			},
+		}
+		managedTransport.epoch.Store(&transportEpoch{transport: inner})
+		return managedTransport, nil
+	case C.TLSEngineDefault, "go":
+		cheapRebuild = true
+	default:
+		return nil, E.New("unknown HTTP engine: ", options.Engine)
+	}
+	tlsOptions := common.PtrValueOrDefault(options.TLS)
+	tlsOptions.Enabled = true
+	baseTLSConfig, err := tls.NewClientWithOptions(tls.ClientOptions{
+		Context:              ctx,
+		Logger:               logger,
+		Options:              tlsOptions,
+		AllowEmptyServerName: true,
+	})
+	if err != nil {
+		return nil, err
+	}
+	inner, err := newTransport(rawDialer, baseTLSConfig, options)
+	if err != nil {
+		return nil, err
+	}
+	managedTransport := &ManagedTransport{
+		cheapRebuild: cheapRebuild,
+		dialer:       rawDialer,
+		headers:      headers,
+		host:         host,
+		tag:          tag,
+		factory: func() (innerTransport, error) {
+			return newTransport(rawDialer, baseTLSConfig, options)
+		},
+	}
+	managedTransport.epoch.Store(&transportEpoch{transport: inner})
+	return managedTransport, nil
+}
+
+func newTransport(rawDialer N.Dialer, baseTLSConfig tls.Config, options option.HTTPClientOptions) (innerTransport, error) {
+	version := options.Version
+	if version == 0 {
+		version = 2
+	}
+	fallbackDelay := time.Duration(options.DialerOptions.FallbackDelay)
+	if fallbackDelay == 0 {
+		fallbackDelay = 300 * time.Millisecond
+	}
+	var transport innerTransport
+	var err error
+	switch version {
+	case 1:
+		transport = newHTTP1Transport(rawDialer, baseTLSConfig)
+	case 2:
+		if options.DisableVersionFallback {
+			transport, err = newHTTP2Transport(rawDialer, baseTLSConfig, options.HTTP2Options)
+		} else {
+			transport, err = newHTTP2FallbackTransport(rawDialer, baseTLSConfig, options.HTTP2Options)
+		}
+	case 3:
+		if baseTLSConfig != nil {
+			_, err = baseTLSConfig.STDConfig()
+			if err != nil {
+				return nil, err
+			}
+		}
+		if options.DisableVersionFallback {
+			transport, err = newHTTP3Transport(rawDialer, baseTLSConfig, options.HTTP3Options)
+		} else {
+			var h2Fallback innerTransport
+			h2Fallback, err = newHTTP2FallbackTransport(rawDialer, baseTLSConfig, options.HTTP2Options)
+			if err != nil {
+				return nil, err
+			}
+			transport, err = newHTTP3FallbackTransport(rawDialer, baseTLSConfig, h2Fallback, options.HTTP3Options, fallbackDelay)
+		}
+	default:
+		return nil, E.New("unknown HTTP version: ", version)
+	}
+	if err != nil {
+		return nil, err
+	}
+	return transport, nil
+}

sing-box/common/httpclient/context.go

@@ -0,0 +1,14 @@
+package httpclient
+
+import "context"
+
+type transportKey struct{}
+
+func contextWithTransportTag(ctx context.Context, transportTag string) context.Context {
+	return context.WithValue(ctx, transportKey{}, transportTag)
+}
+
+func transportTagFromContext(ctx context.Context) (string, bool) {
+	value, loaded := ctx.Value(transportKey{}).(string)
+	return value, loaded
+}

sing-box/common/httpclient/helpers.go

@@ -0,0 +1,86 @@
+package httpclient
+
+import (
+	"context"
+	stdTLS "crypto/tls"
+	"io"
+	"net"
+	"net/http"
+	"strings"
+
+	"github.com/sagernet/sing-box/common/tls"
+	E "github.com/sagernet/sing/common/exceptions"
+	M "github.com/sagernet/sing/common/metadata"
+	N "github.com/sagernet/sing/common/network"
+)
+
+func dialTLS(ctx context.Context, rawDialer N.Dialer, baseTLSConfig tls.Config, destination M.Socksaddr, nextProtos []string, expectProto string) (net.Conn, error) {
+	if baseTLSConfig == nil {
+		return nil, E.New("TLS transport unavailable")
+	}
+	tlsConfig := baseTLSConfig.Clone()
+	if tlsConfig.ServerName() == "" && destination.IsValid() {
+		tlsConfig.SetServerName(destination.AddrString())
+	}
+	tlsConfig.SetNextProtos(nextProtos)
+	conn, err := rawDialer.DialContext(ctx, N.NetworkTCP, destination)
+	if err != nil {
+		return nil, err
+	}
+	tlsConn, err := tls.ClientHandshake(ctx, conn, tlsConfig)
+	if err != nil {
+		conn.Close()
+		return nil, err
+	}
+	if expectProto != "" && tlsConn.ConnectionState().NegotiatedProtocol != expectProto {
+		tlsConn.Close()
+		return nil, errHTTP2Fallback
+	}
+	return tlsConn, nil
+}
+
+func applyHeaders(request *http.Request, headers http.Header, host string) {
+	for header, values := range headers {
+		request.Header[header] = append([]string(nil), values...)
+	}
+	if host != "" {
+		request.Host = host
+	}
+}
+
+func requestRequiresHTTP1(request *http.Request) bool {
+	return strings.Contains(strings.ToLower(request.Header.Get("Connection")), "upgrade") &&
+		strings.EqualFold(request.Header.Get("Upgrade"), "websocket")
+}
+
+func requestReplayable(request *http.Request) bool {
+	return request.Body == nil || request.Body == http.NoBody || request.GetBody != nil
+}
+
+func cloneRequestForRetry(request *http.Request) *http.Request {
+	cloned := request.Clone(request.Context())
+	if request.Body != nil && request.Body != http.NoBody && request.GetBody != nil {
+		cloned.Body = mustGetBody(request)
+	}
+	return cloned
+}
+
+func mustGetBody(request *http.Request) io.ReadCloser {
+	body, err := request.GetBody()
+	if err != nil {
+		panic(err)
+	}
+	return body
+}
+
+func buildSTDTLSConfig(baseTLSConfig tls.Config, destination M.Socksaddr, nextProtos []string) (*stdTLS.Config, error) {
+	if baseTLSConfig == nil {
+		return nil, nil
+	}
+	tlsConfig := baseTLSConfig.Clone()
+	if tlsConfig.ServerName() == "" && destination.IsValid() {
+		tlsConfig.SetServerName(destination.AddrString())
+	}
+	tlsConfig.SetNextProtos(nextProtos)
+	return tlsConfig.STDConfig()
+}

sing-box/common/httpclient/http1_transport.go

@@ -0,0 +1,42 @@
+package httpclient
+
+import (
+	"context"
+	"net"
+	"net/http"
+
+	"github.com/sagernet/sing-box/common/tls"
+	M "github.com/sagernet/sing/common/metadata"
+	N "github.com/sagernet/sing/common/network"
+)
+
+type http1Transport struct {
+	transport *http.Transport
+}
+
+func newHTTP1Transport(rawDialer N.Dialer, baseTLSConfig tls.Config) *http1Transport {
+	transport := &http.Transport{
+		DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
+			return rawDialer.DialContext(ctx, network, M.ParseSocksaddr(addr))
+		},
+	}
+	if baseTLSConfig != nil {
+		transport.DialTLSContext = func(ctx context.Context, network, addr string) (net.Conn, error) {
+			return dialTLS(ctx, rawDialer, baseTLSConfig, M.ParseSocksaddr(addr), []string{"http/1.1"}, "")
+		}
+	}
+	return &http1Transport{transport: transport}
+}
+
+func (t *http1Transport) RoundTrip(request *http.Request) (*http.Response, error) {
+	return t.transport.RoundTrip(request)
+}
+
+func (t *http1Transport) CloseIdleConnections() {
+	t.transport.CloseIdleConnections()
+}
+
+func (t *http1Transport) Close() error {
+	t.CloseIdleConnections()
+	return nil
+}

sing-box/common/httpclient/http2_config.go

@@ -0,0 +1,42 @@
+package httpclient
+
+import (
+	stdTLS "crypto/tls"
+	"net/http"
+	"time"
+
+	"github.com/sagernet/sing-box/option"
+	E "github.com/sagernet/sing/common/exceptions"
+
+	"golang.org/x/net/http2"
+)
+
+func CloneHTTP2Transport(transport *http2.Transport) *http2.Transport {
+	return &http2.Transport{
+		ReadIdleTimeout: transport.ReadIdleTimeout,
+		PingTimeout:     transport.PingTimeout,
+		DialTLSContext:  transport.DialTLSContext,
+	}
+}
+
+func ConfigureHTTP2Transport(options option.HTTP2Options) (*http2.Transport, error) {
+	stdTransport := &http.Transport{
+		TLSClientConfig: &stdTLS.Config{},
+		HTTP2: &http.HTTP2Config{
+			MaxReceiveBufferPerStream:     int(options.StreamReceiveWindow.Value()),
+			MaxReceiveBufferPerConnection: int(options.ConnectionReceiveWindow.Value()),
+			MaxConcurrentStreams:          options.MaxConcurrentStreams,
+			SendPingTimeout:               time.Duration(options.KeepAlivePeriod),
+			PingTimeout:                   time.Duration(options.IdleTimeout),
+		},
+	}
+	h2Transport, err := http2.ConfigureTransports(stdTransport)
+	if err != nil {
+		return nil, E.Cause(err, "configure HTTP/2 transport")
+	}
+	// ConfigureTransports binds ConnPool to the throwaway http.Transport; sever it so DialTLSContext is used directly.
+	h2Transport.ConnPool = nil
+	h2Transport.ReadIdleTimeout = time.Duration(options.KeepAlivePeriod)
+	h2Transport.PingTimeout = time.Duration(options.IdleTimeout)
+	return h2Transport, nil
+}

sing-box/common/httpclient/http2_fallback_transport.go

@@ -0,0 +1,84 @@
+package httpclient
+
+import (
+	"context"
+	stdTLS "crypto/tls"
+	"errors"
+	"net"
+	"net/http"
+	"sync/atomic"
+
+	"github.com/sagernet/sing-box/common/tls"
+	"github.com/sagernet/sing-box/option"
+	E "github.com/sagernet/sing/common/exceptions"
+	M "github.com/sagernet/sing/common/metadata"
+	N "github.com/sagernet/sing/common/network"
+
+	"golang.org/x/net/http2"
+)
+
+var errHTTP2Fallback = E.New("fallback to HTTP/1.1")
+
+type http2FallbackTransport struct {
+	h2Transport *http2.Transport
+	h1Transport *http1Transport
+	h2Fallback  *atomic.Bool
+}
+
+func newHTTP2FallbackTransport(rawDialer N.Dialer, baseTLSConfig tls.Config, options option.HTTP2Options) (*http2FallbackTransport, error) {
+	h1 := newHTTP1Transport(rawDialer, baseTLSConfig)
+	var fallback atomic.Bool
+	h2Transport, err := ConfigureHTTP2Transport(options)
+	if err != nil {
+		return nil, err
+	}
+	h2Transport.DialTLSContext = func(ctx context.Context, network, addr string, _ *stdTLS.Config) (net.Conn, error) {
+		conn, dialErr := dialTLS(ctx, rawDialer, baseTLSConfig, M.ParseSocksaddr(addr), []string{http2.NextProtoTLS, "http/1.1"}, http2.NextProtoTLS)
+		if dialErr != nil {
+			if errors.Is(dialErr, errHTTP2Fallback) {
+				fallback.Store(true)
+			}
+			return nil, dialErr
+		}
+		return conn, nil
+	}
+	return &http2FallbackTransport{
+		h2Transport: h2Transport,
+		h1Transport: h1,
+		h2Fallback:  &fallback,
+	}, nil
+}
+
+func (t *http2FallbackTransport) RoundTrip(request *http.Request) (*http.Response, error) {
+	return t.roundTrip(request, true)
+}
+
+func (t *http2FallbackTransport) roundTrip(request *http.Request, allowHTTP1Fallback bool) (*http.Response, error) {
+	if request.URL.Scheme != "https" || requestRequiresHTTP1(request) {
+		return t.h1Transport.RoundTrip(request)
+	}
+	if t.h2Fallback.Load() {
+		if !allowHTTP1Fallback {
+			return nil, errHTTP2Fallback
+		}
+		return t.h1Transport.RoundTrip(request)
+	}
+	response, err := t.h2Transport.RoundTrip(request)
+	if err == nil {
+		return response, nil
+	}
+	if !errors.Is(err, errHTTP2Fallback) || !allowHTTP1Fallback {
+		return nil, err
+	}
+	return t.h1Transport.RoundTrip(cloneRequestForRetry(request))
+}
+
+func (t *http2FallbackTransport) CloseIdleConnections() {
+	t.h1Transport.CloseIdleConnections()
+	t.h2Transport.CloseIdleConnections()
+}
+
+func (t *http2FallbackTransport) Close() error {
+	t.CloseIdleConnections()
+	return nil
+}

sing-box/common/httpclient/http2_transport.go

@@ -0,0 +1,52 @@
+package httpclient
+
+import (
+	"context"
+	stdTLS "crypto/tls"
+	"net"
+	"net/http"
+
+	"github.com/sagernet/sing-box/common/tls"
+	"github.com/sagernet/sing-box/option"
+	M "github.com/sagernet/sing/common/metadata"
+	N "github.com/sagernet/sing/common/network"
+
+	"golang.org/x/net/http2"
+)
+
+type http2Transport struct {
+	h2Transport *http2.Transport
+	h1Transport *http1Transport
+}
+
+func newHTTP2Transport(rawDialer N.Dialer, baseTLSConfig tls.Config, options option.HTTP2Options) (*http2Transport, error) {
+	h1 := newHTTP1Transport(rawDialer, baseTLSConfig)
+	h2Transport, err := ConfigureHTTP2Transport(options)
+	if err != nil {
+		return nil, err
+	}
+	h2Transport.DialTLSContext = func(ctx context.Context, network, addr string, _ *stdTLS.Config) (net.Conn, error) {
+		return dialTLS(ctx, rawDialer, baseTLSConfig, M.ParseSocksaddr(addr), []string{http2.NextProtoTLS}, http2.NextProtoTLS)
+	}
+	return &http2Transport{
+		h2Transport: h2Transport,
+		h1Transport: h1,
+	}, nil
+}
+
+func (t *http2Transport) RoundTrip(request *http.Request) (*http.Response, error) {
+	if request.URL.Scheme != "https" || requestRequiresHTTP1(request) {
+		return t.h1Transport.RoundTrip(request)
+	}
+	return t.h2Transport.RoundTrip(request)
+}
+
+func (t *http2Transport) CloseIdleConnections() {
+	t.h1Transport.CloseIdleConnections()
+	t.h2Transport.CloseIdleConnections()
+}
+
+func (t *http2Transport) Close() error {
+	t.CloseIdleConnections()
+	return nil
+}

sing-box/common/httpclient/http3_transport.go

@@ -0,0 +1,297 @@
+//go:build with_quic
+
+package httpclient
+
+import (
+	"context"
+	stdTLS "crypto/tls"
+	"errors"
+	"net/http"
+	"sync"
+	"time"
+
+	"github.com/sagernet/quic-go"
+	"github.com/sagernet/quic-go/http3"
+	"github.com/sagernet/sing-box/common/tls"
+	"github.com/sagernet/sing-box/option"
+	"github.com/sagernet/sing/common/bufio"
+	E "github.com/sagernet/sing/common/exceptions"
+	M "github.com/sagernet/sing/common/metadata"
+	N "github.com/sagernet/sing/common/network"
+)
+
+type http3Transport struct {
+	h3Transport *http3.Transport
+}
+
+type http3FallbackTransport struct {
+	h3Transport   *http3.Transport
+	h2Fallback    innerTransport
+	fallbackDelay time.Duration
+	brokenAccess  sync.Mutex
+	brokenUntil   time.Time
+	brokenBackoff time.Duration
+}
+
+func newHTTP3RoundTripper(
+	rawDialer N.Dialer,
+	baseTLSConfig tls.Config,
+	options option.QUICOptions,
+) *http3.Transport {
+	var handshakeTimeout time.Duration
+	if baseTLSConfig != nil {
+		handshakeTimeout = baseTLSConfig.HandshakeTimeout()
+	}
+	quicConfig := &quic.Config{
+		InitialStreamReceiveWindow:     options.StreamReceiveWindow.Value(),
+		MaxStreamReceiveWindow:         options.StreamReceiveWindow.Value(),
+		InitialConnectionReceiveWindow: options.ConnectionReceiveWindow.Value(),
+		MaxConnectionReceiveWindow:     options.ConnectionReceiveWindow.Value(),
+		KeepAlivePeriod:                time.Duration(options.KeepAlivePeriod),
+		MaxIdleTimeout:                 time.Duration(options.IdleTimeout),
+		DisablePathMTUDiscovery:        options.DisablePathMTUDiscovery,
+	}
+	if options.InitialPacketSize > 0 {
+		quicConfig.InitialPacketSize = uint16(options.InitialPacketSize)
+	}
+	if options.MaxConcurrentStreams > 0 {
+		quicConfig.MaxIncomingStreams = int64(options.MaxConcurrentStreams)
+	}
+	if handshakeTimeout > 0 {
+		quicConfig.HandshakeIdleTimeout = handshakeTimeout
+	}
+	h3Transport := &http3.Transport{
+		TLSClientConfig: &stdTLS.Config{},
+		QUICConfig:      quicConfig,
+		Dial: func(ctx context.Context, addr string, tlsConfig *stdTLS.Config, quicConfig *quic.Config) (*quic.Conn, error) {
+			if handshakeTimeout > 0 && quicConfig.HandshakeIdleTimeout == 0 {
+				quicConfig = quicConfig.Clone()
+				quicConfig.HandshakeIdleTimeout = handshakeTimeout
+			}
+			if baseTLSConfig != nil {
+				var err error
+				tlsConfig, err = buildSTDTLSConfig(baseTLSConfig, M.ParseSocksaddr(addr), []string{http3.NextProtoH3})
+				if err != nil {
+					return nil, err
+				}
+			} else {
+				tlsConfig = tlsConfig.Clone()
+				tlsConfig.NextProtos = []string{http3.NextProtoH3}
+			}
+			conn, err := rawDialer.DialContext(ctx, N.NetworkUDP, M.ParseSocksaddr(addr))
+			if err != nil {
+				return nil, err
+			}
+			quicConn, err := quic.DialEarly(ctx, bufio.NewUnbindPacketConn(conn), conn.RemoteAddr(), tlsConfig, quicConfig)
+			if err != nil {
+				conn.Close()
+				return nil, err
+			}
+			return quicConn, nil
+		},
+	}
+	return h3Transport
+}
+
+func newHTTP3Transport(
+	rawDialer N.Dialer,
+	baseTLSConfig tls.Config,
+	options option.QUICOptions,
+) (innerTransport, error) {
+	return &http3Transport{
+		h3Transport: newHTTP3RoundTripper(rawDialer, baseTLSConfig, options),
+	}, nil
+}
+
+func newHTTP3FallbackTransport(
+	rawDialer N.Dialer,
+	baseTLSConfig tls.Config,
+	h2Fallback innerTransport,
+	options option.QUICOptions,
+	fallbackDelay time.Duration,
+) (innerTransport, error) {
+	return &http3FallbackTransport{
+		h3Transport:   newHTTP3RoundTripper(rawDialer, baseTLSConfig, options),
+		h2Fallback:    h2Fallback,
+		fallbackDelay: fallbackDelay,
+	}, nil
+}
+
+func (t *http3Transport) RoundTrip(request *http.Request) (*http.Response, error) {
+	return t.h3Transport.RoundTrip(request)
+}
+
+func (t *http3Transport) CloseIdleConnections() {
+	t.h3Transport.CloseIdleConnections()
+}
+
+func (t *http3Transport) Close() error {
+	t.CloseIdleConnections()
+	return t.h3Transport.Close()
+}
+
+func (t *http3FallbackTransport) RoundTrip(request *http.Request) (*http.Response, error) {
+	if request.URL.Scheme != "https" || requestRequiresHTTP1(request) {
+		return t.h2Fallback.RoundTrip(request)
+	}
+	return t.roundTripHTTP3(request)
+}
+
+func (t *http3FallbackTransport) roundTripHTTP3(request *http.Request) (*http.Response, error) {
+	if t.h3Broken() {
+		return t.h2FallbackRoundTrip(request)
+	}
+	response, err := t.h3Transport.RoundTripOpt(request, http3.RoundTripOpt{OnlyCachedConn: true})
+	if err == nil {
+		t.clearH3Broken()
+		return response, nil
+	}
+	if !errors.Is(err, http3.ErrNoCachedConn) {
+		t.markH3Broken()
+		return t.h2FallbackRoundTrip(cloneRequestForRetry(request))
+	}
+	if !requestReplayable(request) {
+		response, err = t.h3Transport.RoundTrip(request)
+		if err == nil {
+			t.clearH3Broken()
+			return response, nil
+		}
+		t.markH3Broken()
+		return nil, err
+	}
+	return t.roundTripHTTP3Race(request)
+}
+
+func (t *http3FallbackTransport) roundTripHTTP3Race(request *http.Request) (*http.Response, error) {
+	ctx, cancel := context.WithCancel(request.Context())
+	defer cancel()
+	type result struct {
+		response *http.Response
+		err      error
+		h3       bool
+	}
+	results := make(chan result, 2)
+	startRoundTrip := func(request *http.Request, useH3 bool) {
+		request = request.WithContext(ctx)
+		var (
+			response *http.Response
+			err      error
+		)
+		if useH3 {
+			response, err = t.h3Transport.RoundTrip(request)
+		} else {
+			response, err = t.h2FallbackRoundTrip(request)
+		}
+		results <- result{response: response, err: err, h3: useH3}
+	}
+	goroutines := 1
+	received := 0
+	drainRemaining := func() {
+		cancel()
+		for range goroutines - received {
+			go func() {
+				loser := <-results
+				if loser.response != nil && loser.response.Body != nil {
+					loser.response.Body.Close()
+				}
+			}()
+		}
+	}
+	go startRoundTrip(cloneRequestForRetry(request), true)
+	timer := time.NewTimer(t.fallbackDelay)
+	defer timer.Stop()
+	var (
+		h3Err       error
+		fallbackErr error
+	)
+	for {
+		select {
+		case <-timer.C:
+			if goroutines == 1 {
+				goroutines++
+				go startRoundTrip(cloneRequestForRetry(request), false)
+			}
+		case raceResult := <-results:
+			received++
+			if raceResult.err == nil {
+				if raceResult.h3 {
+					t.clearH3Broken()
+				}
+				drainRemaining()
+				return raceResult.response, nil
+			}
+			if raceResult.h3 {
+				t.markH3Broken()
+				h3Err = raceResult.err
+				if goroutines == 1 {
+					goroutines++
+					if !timer.Stop() {
+						select {
+						case <-timer.C:
+						default:
+						}
+					}
+					go startRoundTrip(cloneRequestForRetry(request), false)
+				}
+			} else {
+				fallbackErr = raceResult.err
+			}
+			if received < goroutines {
+				continue
+			}
+			drainRemaining()
+			switch {
+			case h3Err != nil && fallbackErr != nil:
+				return nil, E.Errors(h3Err, fallbackErr)
+			case fallbackErr != nil:
+				return nil, fallbackErr
+			default:
+				return nil, h3Err
+			}
+		}
+	}
+}
+
+func (t *http3FallbackTransport) h2FallbackRoundTrip(request *http.Request) (*http.Response, error) {
+	if fallback, isFallback := t.h2Fallback.(*http2FallbackTransport); isFallback {
+		return fallback.roundTrip(request, true)
+	}
+	return t.h2Fallback.RoundTrip(request)
+}
+
+func (t *http3FallbackTransport) CloseIdleConnections() {
+	t.h3Transport.CloseIdleConnections()
+	t.h2Fallback.CloseIdleConnections()
+}
+
+func (t *http3FallbackTransport) Close() error {
+	t.CloseIdleConnections()
+	return t.h3Transport.Close()
+}
+
+func (t *http3FallbackTransport) h3Broken() bool {
+	t.brokenAccess.Lock()
+	defer t.brokenAccess.Unlock()
+	return !t.brokenUntil.IsZero() && time.Now().Before(t.brokenUntil)
+}
+
+func (t *http3FallbackTransport) clearH3Broken() {
+	t.brokenAccess.Lock()
+	t.brokenUntil = time.Time{}
+	t.brokenBackoff = 0
+	t.brokenAccess.Unlock()
+}
+
+func (t *http3FallbackTransport) markH3Broken() {
+	t.brokenAccess.Lock()
+	defer t.brokenAccess.Unlock()
+	if t.brokenBackoff == 0 {
+		t.brokenBackoff = 5 * time.Minute
+	} else {
+		t.brokenBackoff *= 2
+		if t.brokenBackoff > 48*time.Hour {
+			t.brokenBackoff = 48 * time.Hour
+		}
+	}
+	t.brokenUntil = time.Now().Add(t.brokenBackoff)
+}

sing-box/common/httpclient/http3_transport_stub.go

@@ -0,0 +1,30 @@
+//go:build !with_quic
+
+package httpclient
+
+import (
+	"time"
+
+	"github.com/sagernet/sing-box/common/tls"
+	"github.com/sagernet/sing-box/option"
+	E "github.com/sagernet/sing/common/exceptions"
+	N "github.com/sagernet/sing/common/network"
+)
+
+func newHTTP3FallbackTransport(
+	rawDialer N.Dialer,
+	baseTLSConfig tls.Config,
+	h2Fallback innerTransport,
+	options option.QUICOptions,
+	fallbackDelay time.Duration,
+) (innerTransport, error) {
+	return nil, E.New("HTTP/3 requires building with the with_quic tag")
+}
+
+func newHTTP3Transport(
+	rawDialer N.Dialer,
+	baseTLSConfig tls.Config,
+	options option.QUICOptions,
+) (innerTransport, error) {
+	return nil, E.New("HTTP/3 requires building with the with_quic tag")
+}

sing-box/common/httpclient/managed_transport.go

@@ -0,0 +1,209 @@
+package httpclient
+
+import (
+	"io"
+	"net/http"
+	"sync"
+	"sync/atomic"
+
+	"github.com/sagernet/sing-box/adapter"
+	E "github.com/sagernet/sing/common/exceptions"
+	N "github.com/sagernet/sing/common/network"
+)
+
+type innerTransport interface {
+	http.RoundTripper
+	CloseIdleConnections()
+	Close() error
+}
+
+var _ adapter.HTTPTransport = (*ManagedTransport)(nil)
+
+type ManagedTransport struct {
+	epoch         atomic.Pointer[transportEpoch]
+	rebuildAccess sync.Mutex
+	factory       func() (innerTransport, error)
+	cheapRebuild  bool
+
+	dialer  N.Dialer
+	headers http.Header
+	host    string
+	tag     string
+}
+
+type transportEpoch struct {
+	transport innerTransport
+	active    atomic.Int64
+	marked    atomic.Bool
+	closeOnce sync.Once
+}
+
+type managedResponseBody struct {
+	body    io.ReadCloser
+	release func()
+	once    sync.Once
+}
+
+func (e *transportEpoch) tryClose() {
+	e.closeOnce.Do(func() {
+		e.transport.Close()
+	})
+}
+
+func (b *managedResponseBody) Read(p []byte) (int, error) {
+	return b.body.Read(p)
+}
+
+func (b *managedResponseBody) Close() error {
+	err := b.body.Close()
+	b.once.Do(b.release)
+	return err
+}
+
+func (t *ManagedTransport) getEpoch() (*transportEpoch, error) {
+	epoch := t.epoch.Load()
+	if epoch != nil {
+		return epoch, nil
+	}
+	t.rebuildAccess.Lock()
+	defer t.rebuildAccess.Unlock()
+	epoch = t.epoch.Load()
+	if epoch != nil {
+		return epoch, nil
+	}
+	inner, err := t.factory()
+	if err != nil {
+		return nil, err
+	}
+	epoch = &transportEpoch{transport: inner}
+	t.epoch.Store(epoch)
+	return epoch, nil
+}
+
+func (t *ManagedTransport) acquireEpoch() (*transportEpoch, error) {
+	for {
+		epoch, err := t.getEpoch()
+		if err != nil {
+			return nil, err
+		}
+		epoch.active.Add(1)
+		if epoch == t.epoch.Load() {
+			return epoch, nil
+		}
+		t.releaseEpoch(epoch)
+	}
+}
+
+func (t *ManagedTransport) releaseEpoch(epoch *transportEpoch) {
+	if epoch.active.Add(-1) == 0 && epoch.marked.Load() {
+		epoch.tryClose()
+	}
+}
+
+func (t *ManagedTransport) retireEpoch(epoch *transportEpoch) {
+	if epoch == nil {
+		return
+	}
+	epoch.marked.Store(true)
+	if epoch.active.Load() == 0 {
+		epoch.tryClose()
+	}
+}
+
+func (t *ManagedTransport) RoundTrip(request *http.Request) (*http.Response, error) {
+	epoch, err := t.acquireEpoch()
+	if err != nil {
+		return nil, E.Cause(err, "rebuild http transport")
+	}
+	if t.tag != "" {
+		if transportTag, loaded := transportTagFromContext(request.Context()); loaded && transportTag == t.tag {
+			t.releaseEpoch(epoch)
+			return nil, E.New("HTTP request loopback in transport[", t.tag, "]")
+		}
+		request = request.Clone(contextWithTransportTag(request.Context(), t.tag))
+	} else if len(t.headers) > 0 || t.host != "" {
+		request = request.Clone(request.Context())
+	}
+	applyHeaders(request, t.headers, t.host)
+	response, roundTripErr := epoch.transport.RoundTrip(request)
+	if roundTripErr != nil || response == nil || response.Body == nil {
+		t.releaseEpoch(epoch)
+		return response, roundTripErr
+	}
+	response.Body = &managedResponseBody{
+		body:    response.Body,
+		release: func() { t.releaseEpoch(epoch) },
+	}
+	return response, roundTripErr
+}
+
+func (t *ManagedTransport) CloseIdleConnections() {
+	oldEpoch := t.epoch.Swap(nil)
+	if oldEpoch == nil {
+		return
+	}
+	oldEpoch.transport.CloseIdleConnections()
+	t.retireEpoch(oldEpoch)
+}
+
+func (t *ManagedTransport) Reset() {
+	oldEpoch := t.epoch.Swap(nil)
+	if t.cheapRebuild {
+		t.rebuildAccess.Lock()
+		if t.epoch.Load() == nil {
+			inner, err := t.factory()
+			if err == nil {
+				t.epoch.Store(&transportEpoch{transport: inner})
+			}
+		}
+		t.rebuildAccess.Unlock()
+	}
+	t.retireEpoch(oldEpoch)
+}
+
+func (t *ManagedTransport) close() error {
+	epoch := t.epoch.Swap(nil)
+	if epoch != nil {
+		return epoch.transport.Close()
+	}
+	return nil
+}
+
+var _ adapter.HTTPTransport = (*sharedRef)(nil)
+
+type sharedRef struct {
+	managed *ManagedTransport
+	shared  *sharedState
+	idle    atomic.Bool
+}
+
+type sharedState struct {
+	activeRefs atomic.Int32
+}
+
+func newSharedRef(managed *ManagedTransport, shared *sharedState) *sharedRef {
+	shared.activeRefs.Add(1)
+	return &sharedRef{
+		managed: managed,
+		shared:  shared,
+	}
+}
+
+func (r *sharedRef) RoundTrip(request *http.Request) (*http.Response, error) {
+	if r.idle.CompareAndSwap(true, false) {
+		r.shared.activeRefs.Add(1)
+	}
+	return r.managed.RoundTrip(request)
+}
+
+func (r *sharedRef) CloseIdleConnections() {
+	if r.idle.CompareAndSwap(false, true) {
+		if r.shared.activeRefs.Add(-1) == 0 {
+			r.managed.CloseIdleConnections()
+		}
+	}
+}
+
+func (r *sharedRef) Reset() {
+	r.managed.Reset()
+}

sing-box/common/httpclient/manager.go

@@ -0,0 +1,175 @@
+package httpclient
+
+import (
+	"context"
+	"sync"
+
+	"github.com/sagernet/sing-box/adapter"
+	"github.com/sagernet/sing-box/log"
+	"github.com/sagernet/sing-box/option"
+	E "github.com/sagernet/sing/common/exceptions"
+	"github.com/sagernet/sing/common/logger"
+)
+
+var (
+	_ adapter.HTTPClientManager = (*Manager)(nil)
+	_ adapter.LifecycleService  = (*Manager)(nil)
+)
+
+type Manager struct {
+	ctx                      context.Context
+	logger                   log.ContextLogger
+	access                   sync.Mutex
+	defines                  map[string]option.HTTPClient
+	sharedTransports         map[string]*sharedManagedTransport
+	managedTransports        []*ManagedTransport
+	defaultTag               string
+	defaultTransport         *sharedManagedTransport
+	defaultTransportFallback func() (*ManagedTransport, error)
+}
+
+type sharedManagedTransport struct {
+	managed *ManagedTransport
+	shared  *sharedState
+}
+
+func NewManager(ctx context.Context, logger log.ContextLogger, clients []option.HTTPClient, defaultHTTPClient string) *Manager {
+	defines := make(map[string]option.HTTPClient, len(clients))
+	for _, client := range clients {
+		defines[client.Tag] = client
+	}
+	defaultTag := defaultHTTPClient
+	if defaultTag == "" && len(clients) > 0 {
+		defaultTag = clients[0].Tag
+	}
+	return &Manager{
+		ctx:              ctx,
+		logger:           logger,
+		defines:          defines,
+		sharedTransports: make(map[string]*sharedManagedTransport),
+		defaultTag:       defaultTag,
+	}
+}
+
+func (m *Manager) Initialize(defaultTransportFallback func() (*ManagedTransport, error)) {
+	m.defaultTransportFallback = defaultTransportFallback
+}
+
+func (m *Manager) Name() string {
+	return "http-client"
+}
+
+func (m *Manager) Start(stage adapter.StartStage) error {
+	if stage != adapter.StartStateStart {
+		return nil
+	}
+	if m.defaultTag != "" {
+		sharedTransport, err := m.resolveShared(m.defaultTag)
+		if err != nil {
+			return E.Cause(err, "resolve default http client")
+		}
+		m.defaultTransport = sharedTransport
+	} else if m.defaultTransportFallback != nil {
+		transport, err := m.defaultTransportFallback()
+		if err != nil {
+			return E.Cause(err, "create default http client")
+		}
+		m.trackTransport(transport)
+		m.defaultTransport = &sharedManagedTransport{
+			managed: transport,
+			shared:  &sharedState{},
+		}
+	}
+	return nil
+}
+
+func (m *Manager) DefaultTransport() adapter.HTTPTransport {
+	if m.defaultTransport == nil {
+		return nil
+	}
+	return newSharedRef(m.defaultTransport.managed, m.defaultTransport.shared)
+}
+
+func (m *Manager) ResolveTransport(ctx context.Context, logger logger.ContextLogger, options option.HTTPClientOptions) (adapter.HTTPTransport, error) {
+	if options.Tag != "" {
+		if options.ResolveOnDetour {
+			define, loaded := m.defines[options.Tag]
+			if !loaded {
+				return nil, E.New("http_client not found: ", options.Tag)
+			}
+			resolvedOptions := define.Options()
+			resolvedOptions.ResolveOnDetour = true
+			transport, err := NewTransport(ctx, logger, options.Tag, resolvedOptions)
+			if err != nil {
+				return nil, err
+			}
+			m.trackTransport(transport)
+			return transport, nil
+		}
+		sharedTransport, err := m.resolveShared(options.Tag)
+		if err != nil {
+			return nil, err
+		}
+		return newSharedRef(sharedTransport.managed, sharedTransport.shared), nil
+	}
+	transport, err := NewTransport(ctx, logger, "", options)
+	if err != nil {
+		return nil, err
+	}
+	m.trackTransport(transport)
+	return transport, nil
+}
+
+func (m *Manager) trackTransport(transport *ManagedTransport) {
+	m.access.Lock()
+	defer m.access.Unlock()
+	m.managedTransports = append(m.managedTransports, transport)
+}
+
+func (m *Manager) resolveShared(tag string) (*sharedManagedTransport, error) {
+	m.access.Lock()
+	defer m.access.Unlock()
+	if sharedTransport, loaded := m.sharedTransports[tag]; loaded {
+		return sharedTransport, nil
+	}
+	define, loaded := m.defines[tag]
+	if !loaded {
+		return nil, E.New("http_client not found: ", tag)
+	}
+	transport, err := NewTransport(m.ctx, m.logger, tag, define.Options())
+	if err != nil {
+		return nil, E.Cause(err, "create shared http_client[", tag, "]")
+	}
+	sharedTransport := &sharedManagedTransport{
+		managed: transport,
+		shared:  &sharedState{},
+	}
+	m.sharedTransports[tag] = sharedTransport
+	m.managedTransports = append(m.managedTransports, transport)
+	return sharedTransport, nil
+}
+
+func (m *Manager) ResetNetwork() {
+	m.access.Lock()
+	defer m.access.Unlock()
+	for _, transport := range m.managedTransports {
+		transport.Reset()
+	}
+}
+
+func (m *Manager) Close() error {
+	m.access.Lock()
+	defer m.access.Unlock()
+	if m.managedTransports == nil {
+		return nil
+	}
+	var err error
+	for _, transport := range m.managedTransports {
+		err = E.Append(err, transport.close(), func(err error) error {
+			return E.Cause(err, "close http client")
+		})
+	}
+	m.managedTransports = nil
+	m.sharedTransports = nil
+	return err
+}

sing-box/common/proxybridge/bridge.go

@@ -0,0 +1,115 @@
+package proxybridge
+
+import (
+	std_bufio "bufio"
+	"context"
+	"crypto/rand"
+	"encoding/hex"
+	"net"
+
+	"github.com/sagernet/sing-box/adapter"
+	"github.com/sagernet/sing-box/log"
+	"github.com/sagernet/sing/common"
+	"github.com/sagernet/sing/common/auth"
+	E "github.com/sagernet/sing/common/exceptions"
+	"github.com/sagernet/sing/common/logger"
+	M "github.com/sagernet/sing/common/metadata"
+	N "github.com/sagernet/sing/common/network"
+	"github.com/sagernet/sing/protocol/socks"
+	"github.com/sagernet/sing/service"
+)
+
+type Bridge struct {
+	ctx           context.Context
+	logger        logger.ContextLogger
+	tag           string
+	dialer        N.Dialer
+	connection    adapter.ConnectionManager
+	tcpListener   *net.TCPListener
+	username      string
+	password      string
+	authenticator *auth.Authenticator
+}
+
+func New(ctx context.Context, logger logger.ContextLogger, tag string, dialer N.Dialer) (*Bridge, error) {
+	username := randomHex(16)
+	password := randomHex(16)
+	tcpListener, err := net.ListenTCP("tcp", &net.TCPAddr{IP: net.IPv4(127, 0, 0, 1)})
+	if err != nil {
+		return nil, err
+	}
+	bridge := &Bridge{
+		ctx:           ctx,
+		logger:        logger,
+		tag:           tag,
+		dialer:        dialer,
+		connection:    service.FromContext[adapter.ConnectionManager](ctx),
+		tcpListener:   tcpListener,
+		username:      username,
+		password:      password,
+		authenticator: auth.NewAuthenticator([]auth.User{{Username: username, Password: password}}),
+	}
+	go bridge.acceptLoop()
+	return bridge, nil
+}
+
+func randomHex(size int) string {
+	raw := make([]byte, size)
+	rand.Read(raw)
+	return hex.EncodeToString(raw)
+}
+
+func (b *Bridge) Port() uint16 {
+	return M.SocksaddrFromNet(b.tcpListener.Addr()).Port
+}
+
+func (b *Bridge) Username() string {
+	return b.username
+}
+
+func (b *Bridge) Password() string {
+	return b.password
+}
+
+func (b *Bridge) Close() error {
+	return common.Close(b.tcpListener)
+}
+
+func (b *Bridge) acceptLoop() {
+	for {
+		tcpConn, err := b.tcpListener.AcceptTCP()
+		if err != nil {
+			return
+		}
+		ctx := log.ContextWithNewID(b.ctx)
+		go func() {
+			hErr := socks.HandleConnectionEx(ctx, tcpConn, std_bufio.NewReader(tcpConn), b.authenticator, b, nil, 0, M.SocksaddrFromNet(tcpConn.RemoteAddr()), nil)
+			if hErr == nil {
+				return
+			}
+			if E.IsClosedOrCanceled(hErr) {
+				b.logger.DebugContext(ctx, E.Cause(hErr, b.tag, " connection closed"))
+				return
+			}
+			b.logger.ErrorContext(ctx, E.Cause(hErr, b.tag))
+		}()
+	}
+}
+
+func (b *Bridge) NewConnectionEx(ctx context.Context, conn net.Conn, source M.Socksaddr, destination M.Socksaddr, onClose N.CloseHandlerFunc) {
+	var metadata adapter.InboundContext
+	metadata.Source = source
+	metadata.Destination = destination
+	metadata.Network = N.NetworkTCP
+	b.logger.InfoContext(ctx, b.tag, " connection to ", metadata.Destination)
+	b.connection.NewConnection(ctx, b.dialer, conn, metadata, onClose)
+}
+
+func (b *Bridge) NewPacketConnectionEx(ctx context.Context, conn N.PacketConn, source M.Socksaddr, destination M.Socksaddr, onClose N.CloseHandlerFunc) {
+	var metadata adapter.InboundContext
+	metadata.Source = source
+	metadata.Destination = destination
+	metadata.Network = N.NetworkUDP
+	b.logger.InfoContext(ctx, b.tag, " packet connection to ", metadata.Destination)
+	b.connection.NewPacketConnection(ctx, b.dialer, conn, metadata, onClose)
+}

sing-box/common/tls/apple_client.go

@@ -0,0 +1,221 @@
+//go:build darwin && cgo
+
+package tls
+
+import (
+	"context"
+	"net"
+	"os"
+	"strings"
+	"time"
+
+	"github.com/sagernet/sing-box/adapter"
+	boxConstant "github.com/sagernet/sing-box/constant"
+	"github.com/sagernet/sing-box/option"
+	E "github.com/sagernet/sing/common/exceptions"
+	"github.com/sagernet/sing/common/logger"
+	"github.com/sagernet/sing/common/ntp"
+	"github.com/sagernet/sing/service"
+)
+
+type appleCertificateStore interface {
+	StoreKind() string
+	CurrentPEM() []string
+}
+
+type appleClientConfig struct {
+	serverName                 string
+	nextProtos                 []string
+	handshakeTimeout           time.Duration
+	minVersion                 uint16
+	maxVersion                 uint16
+	insecure                   bool
+	anchorPEM                  string
+	anchorOnly                 bool
+	certificatePublicKeySHA256 [][]byte
+	timeFunc                   func() time.Time
+}
+
+func (c *appleClientConfig) ServerName() string {
+	return c.serverName
+}
+
+func (c *appleClientConfig) SetServerName(serverName string) {
+	c.serverName = serverName
+}
+
+func (c *appleClientConfig) NextProtos() []string {
+	return c.nextProtos
+}
+
+func (c *appleClientConfig) SetNextProtos(nextProto []string) {
+	c.nextProtos = append(c.nextProtos[:0], nextProto...)
+}
+
+func (c *appleClientConfig) HandshakeTimeout() time.Duration {
+	return c.handshakeTimeout
+}
+
+func (c *appleClientConfig) SetHandshakeTimeout(timeout time.Duration) {
+	c.handshakeTimeout = timeout
+}
+
+func (c *appleClientConfig) STDConfig() (*STDConfig, error) {
+	return nil, E.New("unsupported usage for Apple TLS engine")
+}
+
+func (c *appleClientConfig) Client(conn net.Conn) (Conn, error) {
+	return nil, os.ErrInvalid
+}
+
+func (c *appleClientConfig) Clone() Config {
+	return &appleClientConfig{
+		serverName:                 c.serverName,
+		nextProtos:                 append([]string(nil), c.nextProtos...),
+		handshakeTimeout:           c.handshakeTimeout,
+		minVersion:                 c.minVersion,
+		maxVersion:                 c.maxVersion,
+		insecure:                   c.insecure,
+		anchorPEM:                  c.anchorPEM,
+		anchorOnly:                 c.anchorOnly,
+		certificatePublicKeySHA256: append([][]byte(nil), c.certificatePublicKeySHA256...),
+		timeFunc:                   c.timeFunc,
+	}
+}
+
+func newAppleClient(ctx context.Context, logger logger.ContextLogger, serverAddress string, options option.OutboundTLSOptions, allowEmptyServerName bool) (Config, error) {
+	validated, err := ValidateAppleTLSOptions(ctx, options, "Apple TLS engine")
+	if err != nil {
+		return nil, err
+	}
+
+	var serverName string
+	if options.ServerName != "" {
+		serverName = options.ServerName
+	} else if serverAddress != "" {
+		serverName = serverAddress
+	}
+	if serverName == "" && !options.Insecure && !allowEmptyServerName {
+		return nil, errMissingServerName
+	}
+
+	var handshakeTimeout time.Duration
+	if options.HandshakeTimeout > 0 {
+		handshakeTimeout = options.HandshakeTimeout.Build()
+	} else {
+		handshakeTimeout = boxConstant.TCPTimeout
+	}
+
+	return &appleClientConfig{
+		serverName:                 serverName,
+		nextProtos:                 append([]string(nil), options.ALPN...),
+		handshakeTimeout:           handshakeTimeout,
+		minVersion:                 validated.MinVersion,
+		maxVersion:                 validated.MaxVersion,
+		insecure:                   options.Insecure || len(options.CertificatePublicKeySHA256) > 0,
+		anchorPEM:                  validated.AnchorPEM,
+		anchorOnly:                 validated.AnchorOnly,
+		certificatePublicKeySHA256: append([][]byte(nil), options.CertificatePublicKeySHA256...),
+		timeFunc:                   ntp.TimeFuncFromContext(ctx),
+	}, nil
+}
+
+type AppleTLSValidated struct {
+	MinVersion uint16
+	MaxVersion uint16
+	AnchorPEM  string
+	AnchorOnly bool
+}
+
+func ValidateAppleTLSOptions(ctx context.Context, options option.OutboundTLSOptions, engineName string) (AppleTLSValidated, error) {
+	if options.Reality != nil && options.Reality.Enabled {
+		return AppleTLSValidated{}, E.New("reality is unsupported in ", engineName)
+	}
+	if options.UTLS != nil && options.UTLS.Enabled {
+		return AppleTLSValidated{}, E.New("utls is unsupported in ", engineName)
+	}
+	if options.ECH != nil && options.ECH.Enabled {
+		return AppleTLSValidated{}, E.New("ech is unsupported in ", engineName)
+	}
+	if options.DisableSNI {
+		return AppleTLSValidated{}, E.New("disable_sni is unsupported in ", engineName)
+	}
+	if len(options.CipherSuites) > 0 {
+		return AppleTLSValidated{}, E.New("cipher_suites is unsupported in ", engineName)
+	}
+	if len(options.CurvePreferences) > 0 {
+		return AppleTLSValidated{}, E.New("curve_preferences is unsupported in ", engineName)
+	}
+	if len(options.ClientCertificate) > 0 || options.ClientCertificatePath != "" || len(options.ClientKey) > 0 || options.ClientKeyPath != "" {
+		return AppleTLSValidated{}, E.New("client certificate is unsupported in ", engineName)
+	}
+	if options.Fragment || options.RecordFragment {
+		return AppleTLSValidated{}, E.New("tls fragment is unsupported in ", engineName)
+	}
+	if options.KernelTx || options.KernelRx {
+		return AppleTLSValidated{}, E.New("ktls is unsupported in ", engineName)
+	}
+	if options.Spoof != "" || options.SpoofMethod != "" {
+		return AppleTLSValidated{}, E.New("spoof is unsupported in ", engineName)
+	}
+	if len(options.CertificatePublicKeySHA256) > 0 && (len(options.Certificate) > 0 || options.CertificatePath != "") {
+		return AppleTLSValidated{}, E.New("certificate_public_key_sha256 is conflict with certificate or certificate_path")
+	}
+	var minVersion uint16
+	if options.MinVersion != "" {
+		var err error
+		minVersion, err = ParseTLSVersion(options.MinVersion)
+		if err != nil {
+			return AppleTLSValidated{}, E.Cause(err, "parse min_version")
+		}
+	}
+	var maxVersion uint16
+	if options.MaxVersion != "" {
+		var err error
+		maxVersion, err = ParseTLSVersion(options.MaxVersion)
+		if err != nil {
+			return AppleTLSValidated{}, E.Cause(err, "parse max_version")
+		}
+	}
+	anchorPEM, anchorOnly, err := AppleAnchorPEM(ctx, options)
+	if err != nil {
+		return AppleTLSValidated{}, err
+	}
+	return AppleTLSValidated{
+		MinVersion: minVersion,
+		MaxVersion: maxVersion,
+		AnchorPEM:  anchorPEM,
+		AnchorOnly: anchorOnly,
+	}, nil
+}
+
+func AppleAnchorPEM(ctx context.Context, options option.OutboundTLSOptions) (string, bool, error) {
+	if len(options.Certificate) > 0 {
+		return strings.Join(options.Certificate, "\n"), true, nil
+	}
+	if options.CertificatePath != "" {
+		content, err := os.ReadFile(options.CertificatePath)
+		if err != nil {
+			return "", false, E.Cause(err, "read certificate")
+		}
+		return string(content), true, nil
+	}
+
+	certificateStore := service.FromContext[adapter.CertificateStore](ctx)
+	if certificateStore == nil {
+		return "", false, nil
+	}
+	store, ok := certificateStore.(appleCertificateStore)
+	if !ok {
+		return "", false, nil
+	}
+
+	switch store.StoreKind() {
+	case boxConstant.CertificateStoreSystem, "":
+		return strings.Join(store.CurrentPEM(), "\n"), false, nil
+	case boxConstant.CertificateStoreMozilla, boxConstant.CertificateStoreChrome, boxConstant.CertificateStoreNone:
+		return strings.Join(store.CurrentPEM(), "\n"), true, nil
+	default:
+		return "", false, E.New("unsupported certificate store for Apple TLS engine: ", store.StoreKind())
+	}
+}

sing-box/common/tls/apple_client_platform.go

@@ -0,0 +1,517 @@
+//go:build darwin && cgo
+
+package tls
+
+/*
+#cgo CFLAGS: -x objective-c -fobjc-arc
+#cgo LDFLAGS: -framework Foundation -framework Network -framework Security
+
+#include <stdlib.h>
+#include "apple_client_platform_darwin.h"
+*/
+import "C"
+
+import (
+	"context"
+	"crypto/tls"
+	"crypto/x509"
+	"encoding/binary"
+	"io"
+	"math"
+	"net"
+	"os"
+	"strings"
+	"sync"
+	"syscall"
+	"time"
+	"unsafe"
+
+	"github.com/sagernet/sing/common"
+	E "github.com/sagernet/sing/common/exceptions"
+
+	"golang.org/x/sys/unix"
+)
+
+func (c *appleClientConfig) ClientHandshake(ctx context.Context, conn net.Conn) (Conn, error) {
+	rawSyscallConn, ok := common.Cast[syscall.Conn](conn)
+	if !ok {
+		return nil, E.New("apple TLS: requires fd-backed TCP connection")
+	}
+	syscallConn, err := rawSyscallConn.SyscallConn()
+	if err != nil {
+		return nil, E.Cause(err, "access raw connection")
+	}
+
+	var dupFD int
+	controlErr := syscallConn.Control(func(fd uintptr) {
+		dupFD, err = unix.Dup(int(fd))
+	})
+	if controlErr != nil {
+		return nil, E.Cause(controlErr, "access raw connection")
+	}
+	if err != nil {
+		return nil, E.Cause(err, "duplicate raw connection")
+	}
+
+	serverName := c.serverName
+	serverNamePtr := cStringOrNil(serverName)
+	defer cFree(serverNamePtr)
+
+	alpn := strings.Join(c.nextProtos, "\n")
+	alpnPtr := cStringOrNil(alpn)
+	defer cFree(alpnPtr)
+
+	anchorPEMPtr := cStringOrNil(c.anchorPEM)
+	defer cFree(anchorPEMPtr)
+
+	var (
+		hasVerifyTime       bool
+		verifyTimeUnixMilli int64
+	)
+	if c.timeFunc != nil {
+		hasVerifyTime = true
+		verifyTimeUnixMilli = c.timeFunc().UnixMilli()
+	}
+
+	var errorPtr *C.char
+	client := C.box_apple_tls_client_create(
+		C.int(dupFD),
+		serverNamePtr,
+		alpnPtr,
+		C.size_t(len(alpn)),
+		C.uint16_t(c.minVersion),
+		C.uint16_t(c.maxVersion),
+		C.bool(c.insecure),
+		anchorPEMPtr,
+		C.size_t(len(c.anchorPEM)),
+		C.bool(c.anchorOnly),
+		C.bool(hasVerifyTime),
+		C.int64_t(verifyTimeUnixMilli),
+		&errorPtr,
+	)
+	if client == nil {
+		if errorPtr != nil {
+			defer C.free(unsafe.Pointer(errorPtr))
+			return nil, E.New(C.GoString(errorPtr))
+		}
+		return nil, E.New("apple TLS: create connection")
+	}
+	if err = waitAppleTLSClientReady(ctx, client); err != nil {
+		C.box_apple_tls_client_cancel(client)
+		C.box_apple_tls_client_free(client)
+		return nil, err
+	}
+
+	var state C.box_apple_tls_state_t
+	stateOK := C.box_apple_tls_client_copy_state(client, &state, &errorPtr)
+	if !bool(stateOK) {
+		C.box_apple_tls_client_cancel(client)
+		C.box_apple_tls_client_free(client)
+		if errorPtr != nil {
+			defer C.free(unsafe.Pointer(errorPtr))
+			return nil, E.New(C.GoString(errorPtr))
+		}
+		return nil, E.New("apple TLS: read metadata")
+	}
+	defer C.box_apple_tls_state_free(&state)
+
+	connectionState, rawCerts, err := parseAppleTLSState(&state)
+	if err != nil {
+		C.box_apple_tls_client_cancel(client)
+		C.box_apple_tls_client_free(client)
+		return nil, err
+	}
+	if len(c.certificatePublicKeySHA256) > 0 {
+		err = VerifyPublicKeySHA256(c.certificatePublicKeySHA256, rawCerts)
+		if err != nil {
+			C.box_apple_tls_client_cancel(client)
+			C.box_apple_tls_client_free(client)
+			return nil, err
+		}
+	}
+
+	return &appleTLSConn{
+		rawConn: conn,
+		client:  client,
+		state:   connectionState,
+		closed:  make(chan struct{}),
+	}, nil
+}
+
+const appleTLSHandshakePollInterval = 100 * time.Millisecond
+
+func waitAppleTLSClientReady(ctx context.Context, client *C.box_apple_tls_client_t) error {
+	for {
+		if err := ctx.Err(); err != nil {
+			C.box_apple_tls_client_cancel(client)
+			return err
+		}
+
+		waitTimeout := appleTLSHandshakePollInterval
+		if deadline, loaded := ctx.Deadline(); loaded {
+			remaining := time.Until(deadline)
+			if remaining <= 0 {
+				C.box_apple_tls_client_cancel(client)
+				if err := ctx.Err(); err != nil {
+					return err
+				}
+				return context.DeadlineExceeded
+			}
+			if remaining < waitTimeout {
+				waitTimeout = remaining
+			}
+		}
+
+		var errorPtr *C.char
+		waitResult := C.box_apple_tls_client_wait_ready(client, C.int(timeoutFromDuration(waitTimeout)), &errorPtr)
+		switch waitResult {
+		case 1:
+			return nil
+		case -2:
+			continue
+		case 0:
+			if errorPtr != nil {
+				defer C.free(unsafe.Pointer(errorPtr))
+				return E.New(C.GoString(errorPtr))
+			}
+			return E.New("apple TLS: handshake failed")
+		default:
+			return E.New("apple TLS: invalid handshake state")
+		}
+	}
+}
+
+type appleTLSConn struct {
+	rawConn net.Conn
+	client  *C.box_apple_tls_client_t
+	state   tls.ConnectionState
+
+	readAccess     sync.Mutex
+	writeAccess    sync.Mutex
+	stateAccess    sync.RWMutex
+	closeOnce      sync.Once
+	ioAccess       sync.Mutex
+	ioGroup        sync.WaitGroup
+	closed         chan struct{}
+	readEOF        bool
+	deadlineAccess sync.Mutex
+	readDeadline   time.Time
+	writeDeadline  time.Time
+	readTimedOut   bool
+	writeTimedOut  bool
+}
+
+func (c *appleTLSConn) Read(p []byte) (int, error) {
+	c.readAccess.Lock()
+	defer c.readAccess.Unlock()
+	if c.readEOF {
+		return 0, io.EOF
+	}
+	if len(p) == 0 {
+		return 0, nil
+	}
+
+	timeoutMs, err := c.prepareReadTimeout()
+	if err != nil {
+		return 0, err
+	}
+
+	client, err := c.acquireClient()
+	if err != nil {
+		return 0, err
+	}
+	defer c.releaseClient()
+
+	var eof C.bool
+	var errorPtr *C.char
+	n := C.box_apple_tls_client_read(client, unsafe.Pointer(&p[0]), C.size_t(len(p)), C.int(timeoutMs), &eof, &errorPtr)
+	switch {
+	case n == -2:
+		c.markReadTimedOut()
+		return 0, os.ErrDeadlineExceeded
+	case n >= 0:
+		if bool(eof) {
+			c.readEOF = true
+			if n == 0 {
+				return 0, io.EOF
+			}
+		}
+		return int(n), nil
+	default:
+		if errorPtr != nil {
+			defer C.free(unsafe.Pointer(errorPtr))
+			if c.isClosed() {
+				return 0, net.ErrClosed
+			}
+			return 0, E.New(C.GoString(errorPtr))
+		}
+		return 0, net.ErrClosed
+	}
+}
+
+func (c *appleTLSConn) Write(p []byte) (int, error) {
+	c.writeAccess.Lock()
+	defer c.writeAccess.Unlock()
+	if len(p) == 0 {
+		return 0, nil
+	}
+
+	timeoutMs, err := c.prepareWriteTimeout()
+	if err != nil {
+		return 0, err
+	}
+
+	client, err := c.acquireClient()
+	if err != nil {
+		return 0, err
+	}
+	defer c.releaseClient()
+
+	var errorPtr *C.char
+	n := C.box_apple_tls_client_write(client, unsafe.Pointer(&p[0]), C.size_t(len(p)), C.int(timeoutMs), &errorPtr)
+	switch {
+	case n == -2:
+		c.markWriteTimedOut()
+		return 0, os.ErrDeadlineExceeded
+	case n >= 0:
+		return int(n), nil
+	}
+	if errorPtr != nil {
+		defer C.free(unsafe.Pointer(errorPtr))
+		if c.isClosed() {
+			return 0, net.ErrClosed
+		}
+		return 0, E.New(C.GoString(errorPtr))
+	}
+	return 0, net.ErrClosed
+}
+
+func (c *appleTLSConn) Close() error {
+	var closeErr error
+	c.closeOnce.Do(func() {
+		close(c.closed)
+		C.box_apple_tls_client_cancel(c.client)
+		closeErr = c.rawConn.Close()
+		c.ioAccess.Lock()
+		c.ioGroup.Wait()
+		C.box_apple_tls_client_free(c.client)
+		c.client = nil
+		c.ioAccess.Unlock()
+	})
+	return closeErr
+}
+
+func (c *appleTLSConn) LocalAddr() net.Addr {
+	return c.rawConn.LocalAddr()
+}
+
+func (c *appleTLSConn) RemoteAddr() net.Addr {
+	return c.rawConn.RemoteAddr()
+}
+
+// SetDeadline installs deadlines for subsequent Read and Write calls.
+//
+// Deadlines only apply to subsequent Read or Write calls; an in-flight call
+// does not observe later updates to its deadline. Callers that need to cancel
+// an in-flight I/O must Close the connection instead.
+//
+// Once an active Read or Write trips its deadline, the underlying
+// nw_connection is cancelled and the conn is no longer usable — callers must
+// Close after a deadline error.
+func (c *appleTLSConn) SetDeadline(t time.Time) error {
+	c.deadlineAccess.Lock()
+	c.readDeadline = t
+	c.writeDeadline = t
+	c.readTimedOut = false
+	c.writeTimedOut = false
+	c.deadlineAccess.Unlock()
+	return nil
+}
+
+func (c *appleTLSConn) SetReadDeadline(t time.Time) error {
+	c.deadlineAccess.Lock()
+	c.readDeadline = t
+	c.readTimedOut = false
+	c.deadlineAccess.Unlock()
+	return nil
+}
+
+func (c *appleTLSConn) SetWriteDeadline(t time.Time) error {
+	c.deadlineAccess.Lock()
+	c.writeDeadline = t
+	c.writeTimedOut = false
+	c.deadlineAccess.Unlock()
+	return nil
+}
+
+func (c *appleTLSConn) prepareReadTimeout() (int, error) {
+	c.deadlineAccess.Lock()
+	defer c.deadlineAccess.Unlock()
+	if c.readTimedOut {
+		return 0, os.ErrDeadlineExceeded
+	}
+	timeoutMs, expired := deadlineTimeoutMs(c.readDeadline)
+	if expired {
+		c.readTimedOut = true
+		return 0, os.ErrDeadlineExceeded
+	}
+	return timeoutMs, nil
+}
+
+func (c *appleTLSConn) prepareWriteTimeout() (int, error) {
+	c.deadlineAccess.Lock()
+	defer c.deadlineAccess.Unlock()
+	if c.writeTimedOut {
+		return 0, os.ErrDeadlineExceeded
+	}
+	timeoutMs, expired := deadlineTimeoutMs(c.writeDeadline)
+	if expired {
+		c.writeTimedOut = true
+		return 0, os.ErrDeadlineExceeded
+	}
+	return timeoutMs, nil
+}
+
+func (c *appleTLSConn) markReadTimedOut() {
+	c.deadlineAccess.Lock()
+	c.readTimedOut = true
+	c.deadlineAccess.Unlock()
+}
+
+func (c *appleTLSConn) markWriteTimedOut() {
+	c.deadlineAccess.Lock()
+	c.writeTimedOut = true
+	c.deadlineAccess.Unlock()
+}
+
+func deadlineTimeoutMs(deadline time.Time) (int, bool) {
+	if deadline.IsZero() {
+		return -1, false
+	}
+	remaining := time.Until(deadline)
+	if remaining <= 0 {
+		return 0, true
+	}
+	return timeoutFromDuration(remaining), false
+}
+
+func (c *appleTLSConn) isClosed() bool {
+	select {
+	case <-c.closed:
+		return true
+	default:
+		return false
+	}
+}
+
+func (c *appleTLSConn) acquireClient() (*C.box_apple_tls_client_t, error) {
+	c.ioAccess.Lock()
+	defer c.ioAccess.Unlock()
+	if c.isClosed() {
+		return nil, net.ErrClosed
+	}
+	client := c.client
+	if client == nil {
+		return nil, net.ErrClosed
+	}
+	c.ioGroup.Add(1)
+	return client, nil
+}
+
+func (c *appleTLSConn) releaseClient() {
+	c.ioGroup.Done()
+}
+
+func (c *appleTLSConn) NetConn() net.Conn {
+	return c.rawConn
+}
+
+func (c *appleTLSConn) HandshakeContext(ctx context.Context) error {
+	return nil
+}
+
+func (c *appleTLSConn) ConnectionState() ConnectionState {
+	c.stateAccess.RLock()
+	defer c.stateAccess.RUnlock()
+	return c.state
+}
+
+func parseAppleTLSState(state *C.box_apple_tls_state_t) (tls.ConnectionState, [][]byte, error) {
+	rawCerts, peerCertificates, err := parseAppleCertChain(state.peer_cert_chain, state.peer_cert_chain_len)
+	if err != nil {
+		return tls.ConnectionState{}, nil, err
+	}
+	var negotiatedProtocol string
+	if state.alpn != nil {
+		negotiatedProtocol = C.GoString(state.alpn)
+	}
+	var serverName string
+	if state.server_name != nil {
+		serverName = C.GoString(state.server_name)
+	}
+	return tls.ConnectionState{
+		Version:            uint16(state.version),
+		HandshakeComplete:  true,
+		CipherSuite:        uint16(state.cipher_suite),
+		NegotiatedProtocol: negotiatedProtocol,
+		ServerName:         serverName,
+		PeerCertificates:   peerCertificates,
+	}, rawCerts, nil
+}
+
+func parseAppleCertChain(chain *C.uint8_t, chainLen C.size_t) ([][]byte, []*x509.Certificate, error) {
+	if chain == nil || chainLen == 0 {
+		return nil, nil, nil
+	}
+	chainBytes := C.GoBytes(unsafe.Pointer(chain), C.int(chainLen))
+	var (
+		rawCerts         [][]byte
+		peerCertificates []*x509.Certificate
+	)
+	for len(chainBytes) >= 4 {
+		certificateLen := binary.BigEndian.Uint32(chainBytes[:4])
+		chainBytes = chainBytes[4:]
+		if len(chainBytes) < int(certificateLen) {
+			return nil, nil, E.New("apple TLS: invalid certificate chain")
+		}
+		certificateData := append([]byte(nil), chainBytes[:certificateLen]...)
+		certificate, err := x509.ParseCertificate(certificateData)
+		if err != nil {
+			return nil, nil, E.Cause(err, "parse peer certificate")
+		}
+		rawCerts = append(rawCerts, certificateData)
+		peerCertificates = append(peerCertificates, certificate)
+		chainBytes = chainBytes[certificateLen:]
+	}
+	if len(chainBytes) != 0 {
+		return nil, nil, E.New("apple TLS: invalid certificate chain")
+	}
+	return rawCerts, peerCertificates, nil
+}
+
+func timeoutFromDuration(timeout time.Duration) int {
+	if timeout <= 0 {
+		return 0
+	}
+	timeoutMilliseconds := int64(timeout / time.Millisecond)
+	if timeout%time.Millisecond != 0 {
+		timeoutMilliseconds++
+	}
+	if timeoutMilliseconds > math.MaxInt32 {
+		return math.MaxInt32
+	}
+	return int(timeoutMilliseconds)
+}
+
+func cStringOrNil(value string) *C.char {
+	if value == "" {
+		return nil
+	}
+	return C.CString(value)
+}
+
+func cFree(pointer *C.char) {
+	if pointer != nil {
+		C.free(unsafe.Pointer(pointer))
+	}
+}

sing-box/common/tls/apple_client_platform_darwin.h

@@ -0,0 +1,39 @@
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <unistd.h>
+
+typedef struct box_apple_tls_client box_apple_tls_client_t;
+
+typedef struct box_apple_tls_state {
+	uint16_t version;
+	uint16_t cipher_suite;
+	char *alpn;
+	char *server_name;
+	uint8_t *peer_cert_chain;
+	size_t peer_cert_chain_len;
+} box_apple_tls_state_t;
+
+box_apple_tls_client_t *box_apple_tls_client_create(
+	int connected_socket,
+	const char *server_name,
+	const char *alpn,
+	size_t alpn_len,
+	uint16_t min_version,
+	uint16_t max_version,
+	bool insecure,
+	const char *anchor_pem,
+	size_t anchor_pem_len,
+	bool anchor_only,
+	bool has_verify_time,
+	int64_t verify_time_unix_millis,
+	char **error_out
+);
+
+int box_apple_tls_client_wait_ready(box_apple_tls_client_t *client, int timeout_msec, char **error_out);
+void box_apple_tls_client_cancel(box_apple_tls_client_t *client);
+void box_apple_tls_client_free(box_apple_tls_client_t *client);
+ssize_t box_apple_tls_client_read(box_apple_tls_client_t *client, void *buffer, size_t buffer_len, int timeout_msec, bool *eof_out, char **error_out);
+ssize_t box_apple_tls_client_write(box_apple_tls_client_t *client, const void *buffer, size_t buffer_len, int timeout_msec, char **error_out);
+bool box_apple_tls_client_copy_state(box_apple_tls_client_t *client, box_apple_tls_state_t *state, char **error_out);
+void box_apple_tls_state_free(box_apple_tls_state_t *state);

sing-box/common/tls/apple_client_platform_darwin.m

@@ -0,0 +1,667 @@
+#import "apple_client_platform_darwin.h"
+
+#import <Foundation/Foundation.h>
+#import <Network/Network.h>
+#import <Security/Security.h>
+#import <Security/SecProtocolMetadata.h>
+#import <Security/SecProtocolOptions.h>
+#import <Security/SecProtocolTypes.h>
+#import <arpa/inet.h>
+#import <dlfcn.h>
+#import <dispatch/dispatch.h>
+#import <stdatomic.h>
+#import <stdlib.h>
+#import <string.h>
+#import <unistd.h>
+
+typedef nw_connection_t _Nullable (*box_nw_connection_create_with_connected_socket_and_parameters_f)(int connected_socket, nw_parameters_t parameters);
+typedef const char * _Nullable (*box_sec_protocol_metadata_string_accessor_f)(sec_protocol_metadata_t metadata);
+
+typedef struct box_apple_tls_client {
+	void *connection;
+	void *queue;
+	void *ready_semaphore;
+	atomic_int ref_count;
+	atomic_bool ready;
+	atomic_bool ready_done;
+	char *ready_error;
+	box_apple_tls_state_t state;
+} box_apple_tls_client_t;
+
+static nw_connection_t box_apple_tls_connection(box_apple_tls_client_t *client) {
+	if (client == NULL || client->connection == NULL) {
+		return nil;
+	}
+	return (__bridge nw_connection_t)client->connection;
+}
+
+static dispatch_queue_t box_apple_tls_client_queue(box_apple_tls_client_t *client) {
+	if (client == NULL || client->queue == NULL) {
+		return nil;
+	}
+	return (__bridge dispatch_queue_t)client->queue;
+}
+
+static dispatch_semaphore_t box_apple_tls_ready_semaphore(box_apple_tls_client_t *client) {
+	if (client == NULL || client->ready_semaphore == NULL) {
+		return nil;
+	}
+	return (__bridge dispatch_semaphore_t)client->ready_semaphore;
+}
+
+static void box_apple_tls_state_reset(box_apple_tls_state_t *state) {
+	if (state == NULL) {
+		return;
+	}
+	free(state->alpn);
+	free(state->server_name);
+	free(state->peer_cert_chain);
+	memset(state, 0, sizeof(box_apple_tls_state_t));
+}
+
+static void box_apple_tls_client_destroy(box_apple_tls_client_t *client) {
+	free(client->ready_error);
+	box_apple_tls_state_reset(&client->state);
+	if (client->ready_semaphore != NULL) {
+		CFBridgingRelease(client->ready_semaphore);
+	}
+	if (client->connection != NULL) {
+		CFBridgingRelease(client->connection);
+	}
+	if (client->queue != NULL) {
+		CFBridgingRelease(client->queue);
+	}
+	free(client);
+}
+
+static void box_apple_tls_client_release(box_apple_tls_client_t *client) {
+	if (client == NULL) {
+		return;
+	}
+	if (atomic_fetch_sub(&client->ref_count, 1) == 1) {
+		box_apple_tls_client_destroy(client);
+	}
+}
+
+static void box_set_error_string(char **error_out, NSString *message) {
+	if (error_out == NULL || *error_out != NULL) {
+		return;
+	}
+	const char *utf8 = [message UTF8String];
+	*error_out = strdup(utf8 != NULL ? utf8 : "unknown error");
+}
+
+static void box_set_error_message(char **error_out, const char *message) {
+	if (error_out == NULL || *error_out != NULL) {
+		return;
+	}
+	*error_out = strdup(message != NULL ? message : "unknown error");
+}
+
+static void box_set_error_from_nw_error(char **error_out, nw_error_t error) {
+	if (error == NULL) {
+		box_set_error_message(error_out, "unknown network error");
+		return;
+	}
+	CFErrorRef cfError = nw_error_copy_cf_error(error);
+	if (cfError == NULL) {
+		box_set_error_message(error_out, "unknown network error");
+		return;
+	}
+	NSString *description = [(__bridge NSError *)cfError description];
+	box_set_error_string(error_out, description);
+	CFRelease(cfError);
+}
+
+static char *box_apple_tls_metadata_copy_negotiated_protocol(sec_protocol_metadata_t metadata) {
+	static box_sec_protocol_metadata_string_accessor_f copy_fn;
+	static box_sec_protocol_metadata_string_accessor_f get_fn;
+	static dispatch_once_t onceToken;
+	dispatch_once(&onceToken, ^{
+		copy_fn = (box_sec_protocol_metadata_string_accessor_f)dlsym(RTLD_DEFAULT, "sec_protocol_metadata_copy_negotiated_protocol");
+		get_fn = (box_sec_protocol_metadata_string_accessor_f)dlsym(RTLD_DEFAULT, "sec_protocol_metadata_get_negotiated_protocol");
+	});
+	if (copy_fn != NULL) {
+		return (char *)copy_fn(metadata);
+	}
+	if (get_fn != NULL) {
+		const char *protocol = get_fn(metadata);
+		if (protocol != NULL) {
+			return strdup(protocol);
+		}
+	}
+	return NULL;
+}
+
+static char *box_apple_tls_metadata_copy_server_name(sec_protocol_metadata_t metadata) {
+	static box_sec_protocol_metadata_string_accessor_f copy_fn;
+	static box_sec_protocol_metadata_string_accessor_f get_fn;
+	static dispatch_once_t onceToken;
+	dispatch_once(&onceToken, ^{
+		copy_fn = (box_sec_protocol_metadata_string_accessor_f)dlsym(RTLD_DEFAULT, "sec_protocol_metadata_copy_server_name");
+		get_fn = (box_sec_protocol_metadata_string_accessor_f)dlsym(RTLD_DEFAULT, "sec_protocol_metadata_get_server_name");
+	});
+	if (copy_fn != NULL) {
+		return (char *)copy_fn(metadata);
+	}
+	if (get_fn != NULL) {
+		const char *server_name = get_fn(metadata);
+		if (server_name != NULL) {
+			return strdup(server_name);
+		}
+	}
+	return NULL;
+}
+
+static NSArray<NSString *> *box_split_lines(const char *content, size_t content_len) {
+	if (content == NULL || content_len == 0) {
+		return @[];
+	}
+	NSString *string = [[NSString alloc] initWithBytes:content length:content_len encoding:NSUTF8StringEncoding];
+	if (string == nil) {
+		return @[];
+	}
+	NSMutableArray<NSString *> *lines = [NSMutableArray array];
+	[string enumerateLinesUsingBlock:^(NSString *line, BOOL *stop) {
+		if (line.length > 0) {
+			[lines addObject:line];
+		}
+	}];
+	return lines;
+}
+
+static NSArray *box_parse_certificates_from_pem(const char *pem, size_t pem_len) {
+	if (pem == NULL || pem_len == 0) {
+		return @[];
+	}
+	NSString *content = [[NSString alloc] initWithBytes:pem length:pem_len encoding:NSUTF8StringEncoding];
+	if (content == nil) {
+		return @[];
+	}
+	NSString *beginMarker = @"-----BEGIN CERTIFICATE-----";
+	NSString *endMarker = @"-----END CERTIFICATE-----";
+	NSMutableArray *certificates = [NSMutableArray array];
+	NSUInteger searchFrom = 0;
+	while (searchFrom < content.length) {
+		NSRange beginRange = [content rangeOfString:beginMarker options:0 range:NSMakeRange(searchFrom, content.length - searchFrom)];
+		if (beginRange.location == NSNotFound) {
+			break;
+		}
+		NSUInteger bodyStart = beginRange.location + beginRange.length;
+		NSRange endRange = [content rangeOfString:endMarker options:0 range:NSMakeRange(bodyStart, content.length - bodyStart)];
+		if (endRange.location == NSNotFound) {
+			break;
+		}
+		NSString *base64Section = [content substringWithRange:NSMakeRange(bodyStart, endRange.location - bodyStart)];
+		NSArray<NSString *> *components = [base64Section componentsSeparatedByCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
+		NSString *base64Content = [components componentsJoinedByString:@""];
+		NSData *der = [[NSData alloc] initWithBase64EncodedString:base64Content options:0];
+		if (der != nil) {
+			SecCertificateRef certificate = SecCertificateCreateWithData(NULL, (__bridge CFDataRef)der);
+			if (certificate != NULL) {
+				[certificates addObject:(__bridge id)certificate];
+				CFRelease(certificate);
+			}
+		}
+		searchFrom = endRange.location + endRange.length;
+	}
+	return certificates;
+}
+
+static bool box_evaluate_trust(sec_trust_t trust, NSArray *anchors, bool anchor_only, NSDate *verify_date) {
+	bool result = false;
+	SecTrustRef trustRef = sec_trust_copy_ref(trust);
+	if (trustRef == NULL) {
+		return false;
+	}
+	if (verify_date != nil && SecTrustSetVerifyDate(trustRef, (__bridge CFDateRef)verify_date) != errSecSuccess) {
+		CFRelease(trustRef);
+		return false;
+	}
+	if (anchors.count > 0 || anchor_only) {
+		CFMutableArrayRef anchorArray = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
+		for (id certificate in anchors) {
+			CFArrayAppendValue(anchorArray, (__bridge const void *)certificate);
+		}
+		SecTrustSetAnchorCertificates(trustRef, anchorArray);
+		SecTrustSetAnchorCertificatesOnly(trustRef, anchor_only);
+		CFRelease(anchorArray);
+	}
+	CFErrorRef error = NULL;
+	result = SecTrustEvaluateWithError(trustRef, &error);
+	if (error != NULL) {
+		CFRelease(error);
+	}
+	CFRelease(trustRef);
+	return result;
+}
+
+static nw_connection_t box_apple_tls_create_connection(int connected_socket, nw_parameters_t parameters) {
+	static box_nw_connection_create_with_connected_socket_and_parameters_f create_fn;
+	static dispatch_once_t onceToken;
+	dispatch_once(&onceToken, ^{
+		char name[] = "sretemarap_dna_tekcos_detcennoc_htiw_etaerc_noitcennoc_wn";
+		for (size_t i = 0, j = sizeof(name) - 2; i < j; i++, j--) {
+			char t = name[i];
+			name[i] = name[j];
+			name[j] = t;
+		}
+		create_fn = (box_nw_connection_create_with_connected_socket_and_parameters_f)dlsym(RTLD_DEFAULT, name);
+	});
+	if (create_fn == NULL) {
+		return nil;
+	}
+	return create_fn(connected_socket, parameters);
+}
+
+static bool box_apple_tls_state_copy(const box_apple_tls_state_t *source, box_apple_tls_state_t *destination) {
+	memset(destination, 0, sizeof(box_apple_tls_state_t));
+	destination->version = source->version;
+	destination->cipher_suite = source->cipher_suite;
+	if (source->alpn != NULL) {
+		destination->alpn = strdup(source->alpn);
+		if (destination->alpn == NULL) {
+			goto oom;
+		}
+	}
+	if (source->server_name != NULL) {
+		destination->server_name = strdup(source->server_name);
+		if (destination->server_name == NULL) {
+			goto oom;
+		}
+	}
+	if (source->peer_cert_chain_len > 0) {
+		destination->peer_cert_chain = malloc(source->peer_cert_chain_len);
+		if (destination->peer_cert_chain == NULL) {
+			goto oom;
+		}
+		memcpy(destination->peer_cert_chain, source->peer_cert_chain, source->peer_cert_chain_len);
+		destination->peer_cert_chain_len = source->peer_cert_chain_len;
+	}
+	return true;
+
+oom:
+	box_apple_tls_state_reset(destination);
+	return false;
+}
+
+static bool box_apple_tls_state_load(nw_connection_t connection, box_apple_tls_state_t *state, char **error_out) {
+	box_apple_tls_state_reset(state);
+	if (connection == nil) {
+		box_set_error_message(error_out, "apple TLS: invalid client");
+		return false;
+	}
+
+	nw_protocol_definition_t tls_definition = nw_protocol_copy_tls_definition();
+	nw_protocol_metadata_t metadata = nw_connection_copy_protocol_metadata(connection, tls_definition);
+	if (metadata == NULL || !nw_protocol_metadata_is_tls(metadata)) {
+		box_set_error_message(error_out, "apple TLS: metadata unavailable");
+		return false;
+	}
+
+	sec_protocol_metadata_t sec_metadata = nw_tls_copy_sec_protocol_metadata(metadata);
+	if (sec_metadata == NULL) {
+		box_set_error_message(error_out, "apple TLS: metadata unavailable");
+		return false;
+	}
+
+	state->version = (uint16_t)sec_protocol_metadata_get_negotiated_tls_protocol_version(sec_metadata);
+	state->cipher_suite = (uint16_t)sec_protocol_metadata_get_negotiated_tls_ciphersuite(sec_metadata);
+	state->alpn = box_apple_tls_metadata_copy_negotiated_protocol(sec_metadata);
+	state->server_name = box_apple_tls_metadata_copy_server_name(sec_metadata);
+
+	NSMutableData *chain_data = [NSMutableData data];
+	sec_protocol_metadata_access_peer_certificate_chain(sec_metadata, ^(sec_certificate_t certificate) {
+		SecCertificateRef certificate_ref = sec_certificate_copy_ref(certificate);
+		if (certificate_ref == NULL) {
+			return;
+		}
+		CFDataRef certificate_data = SecCertificateCopyData(certificate_ref);
+		CFRelease(certificate_ref);
+		if (certificate_data == NULL) {
+			return;
+		}
+		uint32_t certificate_len = (uint32_t)CFDataGetLength(certificate_data);
+		uint32_t network_len = htonl(certificate_len);
+		[chain_data appendBytes:&network_len length:sizeof(network_len)];
+		[chain_data appendBytes:CFDataGetBytePtr(certificate_data) length:certificate_len];
+		CFRelease(certificate_data);
+	});
+	if (chain_data.length > 0) {
+		state->peer_cert_chain = malloc(chain_data.length);
+		if (state->peer_cert_chain == NULL) {
+			box_set_error_message(error_out, "apple TLS: out of memory");
+			box_apple_tls_state_reset(state);
+			return false;
+		}
+		memcpy(state->peer_cert_chain, chain_data.bytes, chain_data.length);
+		state->peer_cert_chain_len = chain_data.length;
+	}
+	return true;
+}
+
+box_apple_tls_client_t *box_apple_tls_client_create(
+	int connected_socket,
+	const char *server_name,
+	const char *alpn,
+	size_t alpn_len,
+	uint16_t min_version,
+	uint16_t max_version,
+	bool insecure,
+	const char *anchor_pem,
+	size_t anchor_pem_len,
+	bool anchor_only,
+	bool has_verify_time,
+	int64_t verify_time_unix_millis,
+	char **error_out
+) {
+	box_apple_tls_client_t *client = calloc(1, sizeof(box_apple_tls_client_t));
+	if (client == NULL) {
+		close(connected_socket);
+		box_set_error_message(error_out, "apple TLS: out of memory");
+		return NULL;
+	}
+	client->queue = (__bridge_retained void *)dispatch_queue_create("sing-box.apple-private-tls", DISPATCH_QUEUE_SERIAL);
+	client->ready_semaphore = (__bridge_retained void *)dispatch_semaphore_create(0);
+	atomic_init(&client->ref_count, 1);
+	atomic_init(&client->ready, false);
+	atomic_init(&client->ready_done, false);
+
+	NSArray<NSString *> *alpnList = box_split_lines(alpn, alpn_len);
+	NSArray *anchors = box_parse_certificates_from_pem(anchor_pem, anchor_pem_len);
+	NSDate *verifyDate = nil;
+	if (has_verify_time) {
+		verifyDate = [NSDate dateWithTimeIntervalSince1970:(NSTimeInterval)verify_time_unix_millis / 1000.0];
+	}
+	nw_parameters_t parameters = nw_parameters_create_secure_tcp(^(nw_protocol_options_t tls_options) {
+		sec_protocol_options_t sec_options = nw_tls_copy_sec_protocol_options(tls_options);
+		if (min_version != 0) {
+			sec_protocol_options_set_min_tls_protocol_version(sec_options, (tls_protocol_version_t)min_version);
+		}
+		if (max_version != 0) {
+			sec_protocol_options_set_max_tls_protocol_version(sec_options, (tls_protocol_version_t)max_version);
+		}
+		if (server_name != NULL && server_name[0] != '\0') {
+			sec_protocol_options_set_tls_server_name(sec_options, server_name);
+		}
+		for (NSString *protocol in alpnList) {
+			sec_protocol_options_add_tls_application_protocol(sec_options, protocol.UTF8String);
+		}
+		sec_protocol_options_set_peer_authentication_required(sec_options, !insecure);
+		if (insecure) {
+			sec_protocol_options_set_verify_block(sec_options, ^(sec_protocol_metadata_t metadata, sec_trust_t trust, sec_protocol_verify_complete_t complete) {
+				complete(true);
+			}, box_apple_tls_client_queue(client));
+		} else if (verifyDate != nil || anchors.count > 0 || anchor_only) {
+			sec_protocol_options_set_verify_block(sec_options, ^(sec_protocol_metadata_t metadata, sec_trust_t trust, sec_protocol_verify_complete_t complete) {
+				complete(box_evaluate_trust(trust, anchors, anchor_only, verifyDate));
+			}, box_apple_tls_client_queue(client));
+		}
+	}, NW_PARAMETERS_DEFAULT_CONFIGURATION);
+
+	nw_connection_t connection = box_apple_tls_create_connection(connected_socket, parameters);
+	if (connection == NULL) {
+		close(connected_socket);
+		if (client->ready_semaphore != NULL) {
+			CFBridgingRelease(client->ready_semaphore);
+		}
+		if (client->queue != NULL) {
+			CFBridgingRelease(client->queue);
+		}
+		free(client);
+		box_set_error_message(error_out, "apple TLS: failed to create connection");
+		return NULL;
+	}
+
+	client->connection = (__bridge_retained void *)connection;
+	atomic_fetch_add(&client->ref_count, 1);
+
+	nw_connection_set_state_changed_handler(connection, ^(nw_connection_state_t state, nw_error_t error) {
+		switch (state) {
+		case nw_connection_state_ready:
+			if (!atomic_load(&client->ready_done)) {
+				atomic_store(&client->ready, box_apple_tls_state_load(connection, &client->state, &client->ready_error));
+				atomic_store(&client->ready_done, true);
+				dispatch_semaphore_signal(box_apple_tls_ready_semaphore(client));
+			}
+			break;
+		case nw_connection_state_failed:
+			if (!atomic_load(&client->ready_done)) {
+				box_set_error_from_nw_error(&client->ready_error, error);
+				atomic_store(&client->ready_done, true);
+				dispatch_semaphore_signal(box_apple_tls_ready_semaphore(client));
+			}
+			break;
+		case nw_connection_state_cancelled:
+			if (!atomic_load(&client->ready_done)) {
+				box_set_error_from_nw_error(&client->ready_error, error);
+				atomic_store(&client->ready_done, true);
+				dispatch_semaphore_signal(box_apple_tls_ready_semaphore(client));
+			}
+			box_apple_tls_client_release(client);
+			break;
+		default:
+			break;
+		}
+	});
+	nw_connection_set_queue(connection, box_apple_tls_client_queue(client));
+	nw_connection_start(connection);
+	return client;
+}
+
+int box_apple_tls_client_wait_ready(box_apple_tls_client_t *client, int timeout_msec, char **error_out) {
+	dispatch_semaphore_t ready_semaphore = box_apple_tls_ready_semaphore(client);
+	if (ready_semaphore == nil) {
+		box_set_error_message(error_out, "apple TLS: invalid client");
+		return 0;
+	}
+	if (!atomic_load(&client->ready_done)) {
+		dispatch_time_t timeout = DISPATCH_TIME_FOREVER;
+		if (timeout_msec >= 0) {
+			timeout = dispatch_time(DISPATCH_TIME_NOW, (int64_t)timeout_msec * NSEC_PER_MSEC);
+		}
+		long wait_result = dispatch_semaphore_wait(ready_semaphore, timeout);
+		if (wait_result != 0) {
+			return -2;
+		}
+	}
+	if (atomic_load(&client->ready)) {
+		return 1;
+	}
+	if (client->ready_error != NULL) {
+		if (error_out != NULL) {
+			*error_out = client->ready_error;
+			client->ready_error = NULL;
+		} else {
+			free(client->ready_error);
+			client->ready_error = NULL;
+		}
+	} else {
+		box_set_error_message(error_out, "apple TLS: handshake failed");
+	}
+	return 0;
+}
+
+void box_apple_tls_client_cancel(box_apple_tls_client_t *client) {
+	if (client == NULL) {
+		return;
+	}
+	nw_connection_t connection = box_apple_tls_connection(client);
+	if (connection != nil) {
+		nw_connection_cancel(connection);
+	}
+}
+
+void box_apple_tls_client_free(box_apple_tls_client_t *client) {
+	if (client == NULL) {
+		return;
+	}
+	nw_connection_t connection = box_apple_tls_connection(client);
+	if (connection != nil) {
+		nw_connection_cancel(connection);
+	}
+	box_apple_tls_client_release(client);
+}
+
+ssize_t box_apple_tls_client_read(box_apple_tls_client_t *client, void *buffer, size_t buffer_len, int timeout_msec, bool *eof_out, char **error_out) {
+	nw_connection_t connection = box_apple_tls_connection(client);
+	if (connection == nil) {
+		box_set_error_message(error_out, "apple TLS: invalid client");
+		return -1;
+	}
+
+	dispatch_semaphore_t read_semaphore = dispatch_semaphore_create(0);
+	__block NSData *content_data = nil;
+	__block bool read_eof = false;
+	__block char *local_error = NULL;
+
+	nw_connection_receive(connection, 1, (uint32_t)buffer_len, ^(dispatch_data_t content, nw_content_context_t context, bool is_complete, nw_error_t error) {
+		if (content != NULL) {
+			const void *mapped = NULL;
+			size_t mapped_len = 0;
+			dispatch_data_t mapped_data = dispatch_data_create_map(content, &mapped, &mapped_len);
+			if (mapped != NULL && mapped_len > 0) {
+				content_data = [NSData dataWithBytes:mapped length:mapped_len];
+			}
+			(void)mapped_data;
+		}
+		if (error != NULL && content_data.length == 0) {
+			box_set_error_from_nw_error(&local_error, error);
+		}
+		if (is_complete && (context == NULL || nw_content_context_get_is_final(context))) {
+			read_eof = true;
+		}
+		dispatch_semaphore_signal(read_semaphore);
+	});
+
+	dispatch_time_t wait_deadline = DISPATCH_TIME_FOREVER;
+	if (timeout_msec >= 0) {
+		wait_deadline = dispatch_time(DISPATCH_TIME_NOW, (int64_t)timeout_msec * NSEC_PER_MSEC);
+	}
+	long wait_result = dispatch_semaphore_wait(read_semaphore, wait_deadline);
+	if (wait_result != 0) {
+		nw_connection_cancel(connection);
+		dispatch_semaphore_wait(read_semaphore, DISPATCH_TIME_FOREVER);
+		if (local_error != NULL) {
+			free(local_error);
+			local_error = NULL;
+		}
+		return -2;
+	}
+	if (local_error != NULL) {
+		if (error_out != NULL) {
+			*error_out = local_error;
+		} else {
+			free(local_error);
+		}
+		return -1;
+	}
+	if (eof_out != NULL) {
+		*eof_out = read_eof;
+	}
+	if (content_data == nil || content_data.length == 0) {
+		return 0;
+	}
+	memcpy(buffer, content_data.bytes, content_data.length);
+	return (ssize_t)content_data.length;
+}
+
+ssize_t box_apple_tls_client_write(box_apple_tls_client_t *client, const void *buffer, size_t buffer_len, int timeout_msec, char **error_out) {
+	nw_connection_t connection = box_apple_tls_connection(client);
+	if (connection == nil) {
+		box_set_error_message(error_out, "apple TLS: invalid client");
+		return -1;
+	}
+	if (buffer_len == 0) {
+		return 0;
+	}
+
+	void *content_copy = malloc(buffer_len);
+	dispatch_queue_t queue = box_apple_tls_client_queue(client);
+	if (content_copy == NULL) {
+		free(content_copy);
+		box_set_error_message(error_out, "apple TLS: out of memory");
+		return -1;
+	}
+	if (queue == nil) {
+		free(content_copy);
+		box_set_error_message(error_out, "apple TLS: invalid client");
+		return -1;
+	}
+	memcpy(content_copy, buffer, buffer_len);
+	dispatch_data_t content = dispatch_data_create(content_copy, buffer_len, queue, ^{
+		free(content_copy);
+	});
+
+	dispatch_semaphore_t write_semaphore = dispatch_semaphore_create(0);
+	__block char *local_error = NULL;
+
+	nw_connection_send(connection, content, NW_CONNECTION_DEFAULT_STREAM_CONTEXT, false, ^(nw_error_t error) {
+		if (error != NULL) {
+			box_set_error_from_nw_error(&local_error, error);
+		}
+		dispatch_semaphore_signal(write_semaphore);
+	});
+
+	dispatch_time_t wait_deadline = DISPATCH_TIME_FOREVER;
+	if (timeout_msec >= 0) {
+		wait_deadline = dispatch_time(DISPATCH_TIME_NOW, (int64_t)timeout_msec * NSEC_PER_MSEC);
+	}
+	long wait_result = dispatch_semaphore_wait(write_semaphore, wait_deadline);
+	if (wait_result != 0) {
+		nw_connection_cancel(connection);
+		dispatch_semaphore_wait(write_semaphore, DISPATCH_TIME_FOREVER);
+		if (local_error != NULL) {
+			free(local_error);
+			local_error = NULL;
+		}
+		return -2;
+	}
+	if (local_error != NULL) {
+		if (error_out != NULL) {
+			*error_out = local_error;
+		} else {
+			free(local_error);
+		}
+		return -1;
+	}
+	return (ssize_t)buffer_len;
+}
+
+bool box_apple_tls_client_copy_state(box_apple_tls_client_t *client, box_apple_tls_state_t *state, char **error_out) {
+	dispatch_queue_t queue = box_apple_tls_client_queue(client);
+	if (queue == nil || state == NULL) {
+		box_set_error_message(error_out, "apple TLS: invalid client");
+		return false;
+	}
+	memset(state, 0, sizeof(box_apple_tls_state_t));
+	__block bool copied = false;
+	__block char *local_error = NULL;
+	dispatch_sync(queue, ^{
+		if (!atomic_load(&client->ready)) {
+			box_set_error_message(&local_error, "apple TLS: metadata unavailable");
+			return;
+		}
+		if (!box_apple_tls_state_copy(&client->state, state)) {
+			box_set_error_message(&local_error, "apple TLS: out of memory");
+			return;
+		}
+		copied = true;
+	});
+	if (copied) {
+		return true;
+	}
+	if (local_error != NULL) {
+		if (error_out != NULL) {
+			*error_out = local_error;
+		} else {
+			free(local_error);
+		}
+	}
+	box_apple_tls_state_reset(state);
+	return false;
+}
+
+void box_apple_tls_state_free(box_apple_tls_state_t *state) {
+	box_apple_tls_state_reset(state);
+}

sing-box/common/tls/apple_client_platform_test.go

@@ -0,0 +1,453 @@
+//go:build darwin && cgo
+
+package tls
+
+import (
+	"context"
+	stdtls "crypto/tls"
+	"errors"
+	"net"
+	"os"
+	"testing"
+	"time"
+
+	"github.com/sagernet/sing-box/option"
+	"github.com/sagernet/sing/common/json/badoption"
+	"github.com/sagernet/sing/common/logger"
+)
+
+const appleTLSTestTimeout = 5 * time.Second
+
+const (
+	appleTLSSuccessHandshakeLoops = 20
+	appleTLSFailureRecoveryLoops  = 10
+)
+
+type appleTLSServerResult struct {
+	state stdtls.ConnectionState
+	err   error
+}
+
+func TestAppleClientHandshakeAppliesALPNAndVersion(t *testing.T) {
+	serverCertificate, serverCertificatePEM := newAppleTestCertificate(t, "localhost")
+	for index := 0; index < appleTLSSuccessHandshakeLoops; index++ {
+		serverResult, serverAddress := startAppleTLSTestServer(t, &stdtls.Config{
+			Certificates: []stdtls.Certificate{serverCertificate},
+			MinVersion:   stdtls.VersionTLS12,
+			MaxVersion:   stdtls.VersionTLS12,
+			NextProtos:   []string{"h2"},
+		})
+
+		clientConn, err := newAppleTestClientConn(t, serverAddress, option.OutboundTLSOptions{
+			Enabled:     true,
+			Engine:      "apple",
+			ServerName:  "localhost",
+			MinVersion:  "1.2",
+			MaxVersion:  "1.2",
+			ALPN:        badoption.Listable[string]{"h2"},
+			Certificate: badoption.Listable[string]{serverCertificatePEM},
+		})
+		if err != nil {
+			t.Fatalf("iteration %d: %v", index, err)
+		}
+
+		clientState := clientConn.ConnectionState()
+		if clientState.Version != stdtls.VersionTLS12 {
+			_ = clientConn.Close()
+			t.Fatalf("iteration %d: unexpected negotiated version: %x", index, clientState.Version)
+		}
+		if clientState.NegotiatedProtocol != "h2" {
+			_ = clientConn.Close()
+			t.Fatalf("iteration %d: unexpected negotiated protocol: %q", index, clientState.NegotiatedProtocol)
+		}
+		_ = clientConn.Close()
+
+		result := <-serverResult
+		if result.err != nil {
+			t.Fatalf("iteration %d: %v", index, result.err)
+		}
+		if result.state.Version != stdtls.VersionTLS12 {
+			t.Fatalf("iteration %d: server negotiated unexpected version: %x", index, result.state.Version)
+		}
+		if result.state.NegotiatedProtocol != "h2" {
+			t.Fatalf("iteration %d: server negotiated unexpected protocol: %q", index, result.state.NegotiatedProtocol)
+		}
+	}
+}
+
+func TestAppleClientHandshakeRejectsVersionMismatch(t *testing.T) {
+	serverCertificate, serverCertificatePEM := newAppleTestCertificate(t, "localhost")
+	serverResult, serverAddress := startAppleTLSTestServer(t, &stdtls.Config{
+		Certificates: []stdtls.Certificate{serverCertificate},
+		MinVersion:   stdtls.VersionTLS13,
+		MaxVersion:   stdtls.VersionTLS13,
+	})
+
+	clientConn, err := newAppleTestClientConn(t, serverAddress, option.OutboundTLSOptions{
+		Enabled:     true,
+		Engine:      "apple",
+		ServerName:  "localhost",
+		MaxVersion:  "1.2",
+		Certificate: badoption.Listable[string]{serverCertificatePEM},
+	})
+	if err == nil {
+		clientConn.Close()
+		t.Fatal("expected version mismatch handshake to fail")
+	}
+
+	if result := <-serverResult; result.err == nil {
+		t.Fatal("expected server handshake to fail on version mismatch")
+	}
+}
+
+func TestAppleClientHandshakeRejectsServerNameMismatch(t *testing.T) {
+	serverCertificate, serverCertificatePEM := newAppleTestCertificate(t, "localhost")
+	serverResult, serverAddress := startAppleTLSTestServer(t, &stdtls.Config{
+		Certificates: []stdtls.Certificate{serverCertificate},
+	})
+
+	clientConn, err := newAppleTestClientConn(t, serverAddress, option.OutboundTLSOptions{
+		Enabled:     true,
+		Engine:      "apple",
+		ServerName:  "example.com",
+		Certificate: badoption.Listable[string]{serverCertificatePEM},
+	})
+	if err == nil {
+		clientConn.Close()
+		t.Fatal("expected server name mismatch handshake to fail")
+	}
+
+	if result := <-serverResult; result.err == nil {
+		t.Fatal("expected server handshake to fail on server name mismatch")
+	}
+}
+
+func TestAppleClientHandshakeRecoversAfterFailure(t *testing.T) {
+	serverCertificate, serverCertificatePEM := newAppleTestCertificate(t, "localhost")
+	testCases := []struct {
+		name          string
+		serverConfig  *stdtls.Config
+		clientOptions option.OutboundTLSOptions
+	}{
+		{
+			name: "version mismatch",
+			serverConfig: &stdtls.Config{
+				Certificates: []stdtls.Certificate{serverCertificate},
+				MinVersion:   stdtls.VersionTLS13,
+				MaxVersion:   stdtls.VersionTLS13,
+			},
+			clientOptions: option.OutboundTLSOptions{
+				Enabled:     true,
+				Engine:      "apple",
+				ServerName:  "localhost",
+				MaxVersion:  "1.2",
+				Certificate: badoption.Listable[string]{serverCertificatePEM},
+			},
+		},
+		{
+			name: "server name mismatch",
+			serverConfig: &stdtls.Config{
+				Certificates: []stdtls.Certificate{serverCertificate},
+			},
+			clientOptions: option.OutboundTLSOptions{
+				Enabled:     true,
+				Engine:      "apple",
+				ServerName:  "example.com",
+				Certificate: badoption.Listable[string]{serverCertificatePEM},
+			},
+		},
+	}
+	successClientOptions := option.OutboundTLSOptions{
+		Enabled:     true,
+		Engine:      "apple",
+		ServerName:  "localhost",
+		MinVersion:  "1.2",
+		MaxVersion:  "1.2",
+		ALPN:        badoption.Listable[string]{"h2"},
+		Certificate: badoption.Listable[string]{serverCertificatePEM},
+	}
+
+	for _, testCase := range testCases {
+		t.Run(testCase.name, func(t *testing.T) {
+			for index := 0; index < appleTLSFailureRecoveryLoops; index++ {
+				failedResult, failedAddress := startAppleTLSTestServer(t, testCase.serverConfig)
+				failedConn, err := newAppleTestClientConn(t, failedAddress, testCase.clientOptions)
+				if err == nil {
+					_ = failedConn.Close()
+					t.Fatalf("iteration %d: expected handshake failure", index)
+				}
+				if result := <-failedResult; result.err == nil {
+					t.Fatalf("iteration %d: expected server handshake failure", index)
+				}
+
+				successResult, successAddress := startAppleTLSTestServer(t, &stdtls.Config{
+					Certificates: []stdtls.Certificate{serverCertificate},
+					MinVersion:   stdtls.VersionTLS12,
+					MaxVersion:   stdtls.VersionTLS12,
+					NextProtos:   []string{"h2"},
+				})
+				successConn, err := newAppleTestClientConn(t, successAddress, successClientOptions)
+				if err != nil {
+					t.Fatalf("iteration %d: follow-up handshake failed: %v", index, err)
+				}
+				clientState := successConn.ConnectionState()
+				if clientState.NegotiatedProtocol != "h2" {
+					_ = successConn.Close()
+					t.Fatalf("iteration %d: unexpected negotiated protocol after failure: %q", index, clientState.NegotiatedProtocol)
+				}
+				_ = successConn.Close()
+
+				result := <-successResult
+				if result.err != nil {
+					t.Fatalf("iteration %d: follow-up server handshake failed: %v", index, result.err)
+				}
+				if result.state.NegotiatedProtocol != "h2" {
+					t.Fatalf("iteration %d: follow-up server negotiated unexpected protocol: %q", index, result.state.NegotiatedProtocol)
+				}
+			}
+		})
+	}
+}
+
+func TestAppleClientReadDeadline(t *testing.T) {
+	serverCertificate, serverCertificatePEM := newAppleTestCertificate(t, "localhost")
+	serverDone, serverAddress := startAppleTLSSilentServer(t, &stdtls.Config{
+		Certificates: []stdtls.Certificate{serverCertificate},
+		MinVersion:   stdtls.VersionTLS12,
+		MaxVersion:   stdtls.VersionTLS12,
+	})
+
+	clientConn, err := newAppleTestClientConn(t, serverAddress, option.OutboundTLSOptions{
+		Enabled:     true,
+		Engine:      "apple",
+		ServerName:  "localhost",
+		MinVersion:  "1.2",
+		MaxVersion:  "1.2",
+		Certificate: badoption.Listable[string]{serverCertificatePEM},
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer clientConn.Close()
+	defer close(serverDone)
+
+	err = clientConn.SetReadDeadline(time.Now().Add(200 * time.Millisecond))
+	if err != nil {
+		t.Fatalf("SetReadDeadline: %v", err)
+	}
+
+	readDone := make(chan error, 1)
+	buffer := make([]byte, 64)
+	go func() {
+		_, readErr := clientConn.Read(buffer)
+		readDone <- readErr
+	}()
+
+	select {
+	case readErr := <-readDone:
+		if !errors.Is(readErr, os.ErrDeadlineExceeded) {
+			t.Fatalf("expected os.ErrDeadlineExceeded, got %v", readErr)
+		}
+	case <-time.After(2 * time.Second):
+		t.Fatal("Read did not return within 2s after deadline")
+	}
+
+	_, err = clientConn.Read(buffer)
+	if !errors.Is(err, os.ErrDeadlineExceeded) {
+		t.Fatalf("sticky deadline: expected os.ErrDeadlineExceeded, got %v", err)
+	}
+}
+
+func TestAppleClientSetDeadlineClearsPreExpiredSticky(t *testing.T) {
+	serverCertificate, serverCertificatePEM := newAppleTestCertificate(t, "localhost")
+	serverDone, serverAddress := startAppleTLSSilentServer(t, &stdtls.Config{
+		Certificates: []stdtls.Certificate{serverCertificate},
+		MinVersion:   stdtls.VersionTLS12,
+		MaxVersion:   stdtls.VersionTLS12,
+	})
+
+	clientConn, err := newAppleTestClientConn(t, serverAddress, option.OutboundTLSOptions{
+		Enabled:     true,
+		Engine:      "apple",
+		ServerName:  "localhost",
+		MinVersion:  "1.2",
+		MaxVersion:  "1.2",
+		Certificate: badoption.Listable[string]{serverCertificatePEM},
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer clientConn.Close()
+	defer close(serverDone)
+
+	err = clientConn.SetReadDeadline(time.Now().Add(-time.Second))
+	if err != nil {
+		t.Fatalf("SetReadDeadline past: %v", err)
+	}
+
+	// Pre-expired deadline trips sticky flag without cancelling nw_connection
+	// (prepareReadTimeout short-circuits before the C read is issued).
+	buffer := make([]byte, 64)
+	_, err = clientConn.Read(buffer)
+	if !errors.Is(err, os.ErrDeadlineExceeded) {
+		t.Fatalf("pre-expired: expected os.ErrDeadlineExceeded, got %v", err)
+	}
+
+	err = clientConn.SetReadDeadline(time.Time{})
+	if err != nil {
+		t.Fatalf("SetReadDeadline zero: %v", err)
+	}
+
+	newDeadline := 300 * time.Millisecond
+	err = clientConn.SetReadDeadline(time.Now().Add(newDeadline))
+	if err != nil {
+		t.Fatalf("SetReadDeadline future: %v", err)
+	}
+
+	readStart := time.Now()
+	_, err = clientConn.Read(buffer)
+	readElapsed := time.Since(readStart)
+	if !errors.Is(err, os.ErrDeadlineExceeded) {
+		t.Fatalf("after clear: expected os.ErrDeadlineExceeded, got %v", err)
+	}
+	if readElapsed < newDeadline-50*time.Millisecond {
+		t.Fatalf("sticky flag was not cleared: Read returned after %v, expected ~%v", readElapsed, newDeadline)
+	}
+}
+
+func startAppleTLSSilentServer(t *testing.T, tlsConfig *stdtls.Config) (chan<- struct{}, string) {
+	t.Helper()
+
+	listener, err := net.Listen("tcp", "127.0.0.1:0")
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() {
+		listener.Close()
+	})
+
+	if tcpListener, isTCP := listener.(*net.TCPListener); isTCP {
+		err = tcpListener.SetDeadline(time.Now().Add(appleTLSTestTimeout))
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	done := make(chan struct{})
+	go func() {
+		conn, acceptErr := listener.Accept()
+		if acceptErr != nil {
+			return
+		}
+		defer conn.Close()
+		handshakeErr := conn.SetDeadline(time.Now().Add(appleTLSTestTimeout))
+		if handshakeErr != nil {
+			return
+		}
+		tlsConn := stdtls.Server(conn, tlsConfig)
+		defer tlsConn.Close()
+		handshakeErr = tlsConn.Handshake()
+		if handshakeErr != nil {
+			return
+		}
+		handshakeErr = conn.SetDeadline(time.Time{})
+		if handshakeErr != nil {
+			return
+		}
+		<-done
+	}()
+	return done, listener.Addr().String()
+}
+
+func newAppleTestCertificate(t *testing.T, serverName string) (stdtls.Certificate, string) {
+	t.Helper()
+
+	privateKeyPEM, certificatePEM, err := GenerateCertificate(nil, nil, time.Now, serverName, time.Now().Add(time.Hour))
+	if err != nil {
+		t.Fatal(err)
+	}
+	certificate, err := stdtls.X509KeyPair(certificatePEM, privateKeyPEM)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return certificate, string(certificatePEM)
+}
+
+func startAppleTLSTestServer(t *testing.T, tlsConfig *stdtls.Config) (<-chan appleTLSServerResult, string) {
+	t.Helper()
+
+	listener, err := net.Listen("tcp", "127.0.0.1:0")
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() {
+		listener.Close()
+	})
+
+	if tcpListener, isTCP := listener.(*net.TCPListener); isTCP {
+		err = tcpListener.SetDeadline(time.Now().Add(appleTLSTestTimeout))
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	result := make(chan appleTLSServerResult, 1)
+	go func() {
+		defer close(result)
+
+		conn, err := listener.Accept()
+		if err != nil {
+			result <- appleTLSServerResult{err: err}
+			return
+		}
+		defer conn.Close()
+
+		err = conn.SetDeadline(time.Now().Add(appleTLSTestTimeout))
+		if err != nil {
+			result <- appleTLSServerResult{err: err}
+			return
+		}
+
+		tlsConn := stdtls.Server(conn, tlsConfig)
+		defer tlsConn.Close()
+
+		err = tlsConn.Handshake()
+		if err != nil {
+			result <- appleTLSServerResult{err: err}
+			return
+		}
+
+		result <- appleTLSServerResult{state: tlsConn.ConnectionState()}
+	}()
+
+	return result, listener.Addr().String()
+}
+
+func newAppleTestClientConn(t *testing.T, serverAddress string, options option.OutboundTLSOptions) (Conn, error) {
+	t.Helper()
+
+	ctx, cancel := context.WithTimeout(context.Background(), appleTLSTestTimeout)
+	t.Cleanup(cancel)
+
+	clientConfig, err := NewClientWithOptions(ClientOptions{
+		Context:       ctx,
+		Logger:        logger.NOP(),
+		ServerAddress: "",
+		Options:       options,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	conn, err := net.DialTimeout("tcp", serverAddress, appleTLSTestTimeout)
+	if err != nil {
+		return nil, err
+	}
+
+	tlsConn, err := ClientHandshake(ctx, conn, clientConfig)
+	if err != nil {
+		conn.Close()
+		return nil, err
+	}
+	return tlsConn, nil
+}

sing-box/common/tls/apple_client_stub.go

@@ -0,0 +1,15 @@
+//go:build !darwin || !cgo
+
+package tls
+
+import (
+	"context"
+
+	"github.com/sagernet/sing-box/option"
+	E "github.com/sagernet/sing/common/exceptions"
+	"github.com/sagernet/sing/common/logger"
+)
+
+func newAppleClient(ctx context.Context, logger logger.ContextLogger, serverAddress string, options option.OutboundTLSOptions, allowEmptyServerName bool) (Config, error) {
+	return nil, E.New("Apple TLS engine is not available on non-Apple platforms")
+}

sing-box/common/tls/client.go

@@ -8,14 +8,49 @@ import (
 	"os"
 
 	"github.com/sagernet/sing-box/common/badtls"
+	"github.com/sagernet/sing-box/common/tlsspoof"
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/option"
+	E "github.com/sagernet/sing/common/exceptions"
 	"github.com/sagernet/sing/common/logger"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
 	aTLS "github.com/sagernet/sing/common/tls"
 )
 
+var errMissingServerName = E.New("missing server_name or insecure=true")
+
+func parseTLSSpoofOptions(serverName string, options option.OutboundTLSOptions) (string, tlsspoof.Method, error) {
+	if options.Spoof == "" {
+		if options.SpoofMethod != "" {
+			return "", 0, E.New("`spoof_method` requires `spoof`")
+		}
+		return "", 0, nil
+	}
+	if !tlsspoof.PlatformSupported {
+		return "", 0, E.New("`spoof` is not supported on this platform")
+	}
+	if options.DisableSNI || serverName == "" {
+		return "", 0, E.New("`spoof` requires TLS ClientHello with SNI")
+	}
+	method, err := tlsspoof.ParseMethod(options.SpoofMethod)
+	if err != nil {
+		return "", 0, err
+	}
+	return options.Spoof, method, nil
+}
+
+func applyTLSSpoof(conn net.Conn, spoof string, method tlsspoof.Method) (net.Conn, error) {
+	if spoof == "" {
+		return conn, nil
+	}
+	spoofer, err := tlsspoof.NewSpoofer(conn, method)
+	if err != nil {
+		return nil, err
+	}
+	return tlsspoof.NewConn(conn, spoofer, spoof), nil
+}
+
 func NewDialerFromOptions(ctx context.Context, logger logger.ContextLogger, dialer N.Dialer, serverAddress string, options option.OutboundTLSOptions) (N.Dialer, error) {
 	if !options.Enabled {
 		return dialer, nil
@@ -42,11 +77,12 @@ func NewClient(ctx context.Context, logger logger.ContextLogger, serverAddress s
 }
 
 type ClientOptions struct {
-	Context        context.Context
-	Logger         logger.ContextLogger
-	ServerAddress  string
-	Options        option.OutboundTLSOptions
-	KTLSCompatible bool
+	Context              context.Context
+	Logger               logger.ContextLogger
+	ServerAddress        string
+	Options              option.OutboundTLSOptions
+	AllowEmptyServerName bool
+	KTLSCompatible       bool
 }
 
 func NewClientWithOptions(options ClientOptions) (Config, error) {
@@ -61,17 +97,22 @@ func NewClientWithOptions(options ClientOptions) (Config, error) {
 	if options.Options.KernelRx {
 		options.Logger.Warn("enabling kTLS RX will definitely reduce performance, please checkout https://sing-box.sagernet.org/configuration/shared/tls/#kernel_rx")
 	}
-	if options.Options.Reality != nil && options.Options.Reality.Enabled {
-		return NewRealityClient(options.Context, options.Logger, options.ServerAddress, options.Options)
-	} else if options.Options.UTLS != nil && options.Options.UTLS.Enabled {
-		return NewUTLSClient(options.Context, options.Logger, options.ServerAddress, options.Options)
+	switch options.Options.Engine {
+	case C.TLSEngineDefault, "go":
+	case C.TLSEngineApple:
+		return newAppleClient(options.Context, options.Logger, options.ServerAddress, options.Options, options.AllowEmptyServerName)
+	default:
+		return nil, E.New("unknown tls engine: ", options.Options.Engine)
 	}
-	return NewSTDClient(options.Context, options.Logger, options.ServerAddress, options.Options)
+	if options.Options.Reality != nil && options.Options.Reality.Enabled {
+		return newRealityClient(options.Context, options.Logger, options.ServerAddress, options.Options, options.AllowEmptyServerName)
+	} else if options.Options.UTLS != nil && options.Options.UTLS.Enabled {
+		return newUTLSClient(options.Context, options.Logger, options.ServerAddress, options.Options, options.AllowEmptyServerName)
+	}
+	return newSTDClient(options.Context, options.Logger, options.ServerAddress, options.Options, options.AllowEmptyServerName)
 }
 
 func ClientHandshake(ctx context.Context, conn net.Conn, config Config) (Conn, error) {
-	ctx, cancel := context.WithTimeout(ctx, C.TCPTimeout)
-	defer cancel()
 	tlsConn, err := aTLS.ClientHandshake(ctx, conn, config)
 	if err != nil {
 		return nil, err

sing-box/common/tls/reality_client.go

@@ -52,11 +52,18 @@ type RealityClientConfig struct {
 }
 
 func NewRealityClient(ctx context.Context, logger logger.ContextLogger, serverAddress string, options option.OutboundTLSOptions) (Config, error) {
+	return newRealityClient(ctx, logger, serverAddress, options, false)
+}
+
+func newRealityClient(ctx context.Context, logger logger.ContextLogger, serverAddress string, options option.OutboundTLSOptions, allowEmptyServerName bool) (Config, error) {
 	if options.UTLS == nil || !options.UTLS.Enabled {
 		return nil, E.New("uTLS is required by reality client")
 	}
+	if options.Spoof != "" || options.SpoofMethod != "" {
+		return nil, E.New("spoof is unsupported in reality")
+	}
 
-	uClient, err := NewUTLSClient(ctx, logger, serverAddress, options)
+	uClient, err := newUTLSClient(ctx, logger, serverAddress, options, allowEmptyServerName)
 	if err != nil {
 		return nil, err
 	}
@@ -108,6 +115,14 @@ func (e *RealityClientConfig) SetNextProtos(nextProto []string) {
 	e.uClient.SetNextProtos(nextProto)
 }
 
+func (e *RealityClientConfig) HandshakeTimeout() time.Duration {
+	return e.uClient.HandshakeTimeout()
+}
+
+func (e *RealityClientConfig) SetHandshakeTimeout(timeout time.Duration) {
+	e.uClient.SetHandshakeTimeout(timeout)
+}
+
 func (e *RealityClientConfig) STDConfig() (*STDConfig, error) {
 	return nil, E.New("unsupported usage for reality")
 }

sing-box/common/tls/reality_server.go

@@ -26,7 +26,8 @@ import (
 var _ ServerConfigCompat = (*RealityServerConfig)(nil)
 
 type RealityServerConfig struct {
-	config *utls.RealityConfig
+	config           *utls.RealityConfig
+	handshakeTimeout time.Duration
 }
 
 func NewRealityServer(ctx context.Context, logger log.ContextLogger, options option.InboundTLSOptions) (ServerConfig, error) {
@@ -130,7 +131,16 @@ func NewRealityServer(ctx context.Context, logger log.ContextLogger, options opt
 	if options.ECH != nil && options.ECH.Enabled {
 		return nil, E.New("Reality is conflict with ECH")
 	}
-	var config ServerConfig = &RealityServerConfig{&tlsConfig}
+	var handshakeTimeout time.Duration
+	if options.HandshakeTimeout > 0 {
+		handshakeTimeout = options.HandshakeTimeout.Build()
+	} else {
+		handshakeTimeout = C.TCPTimeout
+	}
+	var config ServerConfig = &RealityServerConfig{
+		config:           &tlsConfig,
+		handshakeTimeout: handshakeTimeout,
+	}
 	if options.KernelTx || options.KernelRx {
 		if !C.IsLinux {
 			return nil, E.New("kTLS is only supported on Linux")
@@ -161,6 +171,14 @@ func (c *RealityServerConfig) SetNextProtos(nextProto []string) {
 	c.config.NextProtos = nextProto
 }
 
+func (c *RealityServerConfig) HandshakeTimeout() time.Duration {
+	return c.handshakeTimeout
+}
+
+func (c *RealityServerConfig) SetHandshakeTimeout(timeout time.Duration) {
+	c.handshakeTimeout = timeout
+}
+
 func (c *RealityServerConfig) STDConfig() (*tls.Config, error) {
 	return nil, E.New("unsupported usage for reality")
 }
@@ -191,7 +209,8 @@ func (c *RealityServerConfig) ServerHandshake(ctx context.Context, conn net.Conn
 
 func (c *RealityServerConfig) Clone() Config {
 	return &RealityServerConfig{
-		config: c.config.Clone(),
+		config:           c.config.Clone(),
+		handshakeTimeout: c.handshakeTimeout,
 	}
 }
 

sing-box/common/tls/server.go

@@ -46,8 +46,11 @@ func NewServerWithOptions(options ServerOptions) (ServerConfig, error) {
 }
 
 func ServerHandshake(ctx context.Context, conn net.Conn, config ServerConfig) (Conn, error) {
-	ctx, cancel := context.WithTimeout(ctx, C.TCPTimeout)
-	defer cancel()
+	if config.HandshakeTimeout() == 0 {
+		var cancel context.CancelFunc
+		ctx, cancel = context.WithTimeout(ctx, C.TCPTimeout)
+		defer cancel()
+	}
 	tlsConn, err := aTLS.ServerHandshake(ctx, conn, config)
 	if err != nil {
 		return nil, err

sing-box/common/tls/std_client.go

@@ -14,6 +14,7 @@ import (
 
 	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-box/common/tlsfragment"
+	"github.com/sagernet/sing-box/common/tlsspoof"
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/option"
 	E "github.com/sagernet/sing/common/exceptions"
@@ -24,16 +25,32 @@ import (
 type STDClientConfig struct {
 	ctx                   context.Context
 	config                *tls.Config
+	serverName            string
+	disableSNI            bool
+	verifyServerName      bool
+	handshakeTimeout      time.Duration
 	fragment              bool
 	fragmentFallbackDelay time.Duration
 	recordFragment        bool
+	spoof                 string
+	spoofMethod           tlsspoof.Method
 }
 
 func (c *STDClientConfig) ServerName() string {
-	return c.config.ServerName
+	return c.serverName
 }
 
 func (c *STDClientConfig) SetServerName(serverName string) {
+	c.serverName = serverName
+	if c.disableSNI {
+		c.config.ServerName = ""
+		if c.verifyServerName {
+			c.config.VerifyConnection = verifyConnection(c.config.RootCAs, c.config.Time, serverName)
+		} else {
+			c.config.VerifyConnection = nil
+		}
+		return
+	}
 	c.config.ServerName = serverName
 }
 
@@ -45,6 +62,14 @@ func (c *STDClientConfig) SetNextProtos(nextProto []string) {
 	c.config.NextProtos = nextProto
 }
 
+func (c *STDClientConfig) HandshakeTimeout() time.Duration {
+	return c.handshakeTimeout
+}
+
+func (c *STDClientConfig) SetHandshakeTimeout(timeout time.Duration) {
+	c.handshakeTimeout = timeout
+}
+
 func (c *STDClientConfig) STDConfig() (*STDConfig, error) {
 	return c.config, nil
 }
@@ -53,17 +78,29 @@ func (c *STDClientConfig) Client(conn net.Conn) (Conn, error) {
 	if c.recordFragment {
 		conn = tf.NewConn(conn, c.ctx, c.fragment, c.recordFragment, c.fragmentFallbackDelay)
 	}
+	conn, err := applyTLSSpoof(conn, c.spoof, c.spoofMethod)
+	if err != nil {
+		return nil, err
+	}
 	return tls.Client(conn, c.config), nil
 }
 
 func (c *STDClientConfig) Clone() Config {
-	return &STDClientConfig{
+	cloned := &STDClientConfig{
 		ctx:                   c.ctx,
 		config:                c.config.Clone(),
+		serverName:            c.serverName,
+		disableSNI:            c.disableSNI,
+		verifyServerName:      c.verifyServerName,
+		handshakeTimeout:      c.handshakeTimeout,
 		fragment:              c.fragment,
 		fragmentFallbackDelay: c.fragmentFallbackDelay,
 		recordFragment:        c.recordFragment,
+		spoof:                 c.spoof,
+		spoofMethod:           c.spoofMethod,
 	}
+	cloned.SetServerName(cloned.serverName)
+	return cloned
 }
 
 func (c *STDClientConfig) ECHConfigList() []byte {
@@ -75,41 +112,27 @@ func (c *STDClientConfig) SetECHConfigList(EncryptedClientHelloConfigList []byte
 }
 
 func NewSTDClient(ctx context.Context, logger logger.ContextLogger, serverAddress string, options option.OutboundTLSOptions) (Config, error) {
+	return newSTDClient(ctx, logger, serverAddress, options, false)
+}
+
+func newSTDClient(ctx context.Context, logger logger.ContextLogger, serverAddress string, options option.OutboundTLSOptions, allowEmptyServerName bool) (Config, error) {
 	var serverName string
 	if options.ServerName != "" {
 		serverName = options.ServerName
 	} else if serverAddress != "" {
 		serverName = serverAddress
 	}
-	if serverName == "" && !options.Insecure {
-		return nil, E.New("missing server_name or insecure=true")
+	if serverName == "" && !options.Insecure && !allowEmptyServerName {
+		return nil, errMissingServerName
 	}
 
 	var tlsConfig tls.Config
 	tlsConfig.Time = ntp.TimeFuncFromContext(ctx)
 	tlsConfig.RootCAs = adapter.RootPoolFromContext(ctx)
-	if !options.DisableSNI {
-		tlsConfig.ServerName = serverName
-	}
 	if options.Insecure {
 		tlsConfig.InsecureSkipVerify = options.Insecure
 	} else if options.DisableSNI {
 		tlsConfig.InsecureSkipVerify = true
-		tlsConfig.VerifyConnection = func(state tls.ConnectionState) error {
-			verifyOptions := x509.VerifyOptions{
-				Roots:         tlsConfig.RootCAs,
-				DNSName:       serverName,
-				Intermediates: x509.NewCertPool(),
-			}
-			for _, cert := range state.PeerCertificates[1:] {
-				verifyOptions.Intermediates.AddCert(cert)
-			}
-			if tlsConfig.Time != nil {
-				verifyOptions.CurrentTime = tlsConfig.Time()
-			}
-			_, err := state.PeerCertificates[0].Verify(verifyOptions)
-			return err
-		}
 	}
 	if len(options.CertificatePublicKeySHA256) > 0 {
 		if len(options.Certificate) > 0 || options.CertificatePath != "" {
@@ -117,7 +140,7 @@ func NewSTDClient(ctx context.Context, logger logger.ContextLogger, serverAddres
 		}
 		tlsConfig.InsecureSkipVerify = true
 		tlsConfig.VerifyPeerCertificate = func(rawCerts [][]byte, verifiedChains [][]*x509.Certificate) error {
-			return verifyPublicKeySHA256(options.CertificatePublicKeySHA256, rawCerts, tlsConfig.Time)
+			return VerifyPublicKeySHA256(options.CertificatePublicKeySHA256, rawCerts)
 		}
 	}
 	if len(options.ALPN) > 0 {
@@ -198,7 +221,30 @@ func NewSTDClient(ctx context.Context, logger logger.ContextLogger, serverAddres
 	} else if len(clientCertificate) > 0 || len(clientKey) > 0 {
 		return nil, E.New("client certificate and client key must be provided together")
 	}
-	var config Config = &STDClientConfig{ctx, &tlsConfig, options.Fragment, time.Duration(options.FragmentFallbackDelay), options.RecordFragment}
+	var handshakeTimeout time.Duration
+	if options.HandshakeTimeout > 0 {
+		handshakeTimeout = options.HandshakeTimeout.Build()
+	} else {
+		handshakeTimeout = C.TCPTimeout
+	}
+	spoof, spoofMethod, err := parseTLSSpoofOptions(serverName, options)
+	if err != nil {
+		return nil, err
+	}
+	var config Config = &STDClientConfig{
+		ctx:                   ctx,
+		config:                &tlsConfig,
+		serverName:            serverName,
+		disableSNI:            options.DisableSNI,
+		verifyServerName:      options.DisableSNI && !options.Insecure,
+		handshakeTimeout:      handshakeTimeout,
+		fragment:              options.Fragment,
+		fragmentFallbackDelay: time.Duration(options.FragmentFallbackDelay),
+		recordFragment:        options.RecordFragment,
+		spoof:                 spoof,
+		spoofMethod:           spoofMethod,
+	}
+	config.SetServerName(serverName)
 	if options.ECH != nil && options.ECH.Enabled {
 		var err error
 		config, err = parseECHClientConfig(ctx, config.(ECHCapableConfig), options)
@@ -220,7 +266,28 @@ func NewSTDClient(ctx context.Context, logger logger.ContextLogger, serverAddres
 	return config, nil
 }
 
-func verifyPublicKeySHA256(knownHashValues [][]byte, rawCerts [][]byte, timeFunc func() time.Time) error {
+func verifyConnection(rootCAs *x509.CertPool, timeFunc func() time.Time, serverName string) func(state tls.ConnectionState) error {
+	return func(state tls.ConnectionState) error {
+		if serverName == "" {
+			return errMissingServerName
+		}
+		verifyOptions := x509.VerifyOptions{
+			Roots:         rootCAs,
+			DNSName:       serverName,
+			Intermediates: x509.NewCertPool(),
+		}
+		for _, cert := range state.PeerCertificates[1:] {
+			verifyOptions.Intermediates.AddCert(cert)
+		}
+		if timeFunc != nil {
+			verifyOptions.CurrentTime = timeFunc()
+		}
+		_, err := state.PeerCertificates[0].Verify(verifyOptions)
+		return err
+	}
+}
+
+func VerifyPublicKeySHA256(knownHashValues [][]byte, rawCerts [][]byte) error {
 	leafCertificate, err := x509.ParseCertificate(rawCerts[0])
 	if err != nil {
 		return E.Cause(err, "failed to parse leaf certificate")

sing-box/common/tls/std_server.go

@@ -92,6 +92,7 @@ func getACMENextProtos(provider adapter.CertificateProvider) []string {
 type STDServerConfig struct {
 	access                sync.RWMutex
 	config                *tls.Config
+	handshakeTimeout      time.Duration
 	logger                log.Logger
 	certificateProvider   managedCertificateProvider
 	acmeService           adapter.SimpleLifecycle
@@ -139,6 +140,18 @@ func (c *STDServerConfig) SetNextProtos(nextProto []string) {
 	c.config = config
 }
 
+func (c *STDServerConfig) HandshakeTimeout() time.Duration {
+	c.access.RLock()
+	defer c.access.RUnlock()
+	return c.handshakeTimeout
+}
+
+func (c *STDServerConfig) SetHandshakeTimeout(timeout time.Duration) {
+	c.access.Lock()
+	defer c.access.Unlock()
+	c.handshakeTimeout = timeout
+}
+
 func (c *STDServerConfig) hasACMEALPN() bool {
 	if c.acmeService != nil {
 		return true
@@ -165,7 +178,8 @@ func (c *STDServerConfig) Server(conn net.Conn) (Conn, error) {
 
 func (c *STDServerConfig) Clone() Config {
 	return &STDServerConfig{
-		config: c.config.Clone(),
+		config:           c.config.Clone(),
+		handshakeTimeout: c.handshakeTimeout,
 	}
 }
 
@@ -458,7 +472,7 @@ func NewSTDServer(ctx context.Context, logger log.ContextLogger, options option.
 				tlsConfig.ClientAuth = tls.RequestClientCert
 			}
 			tlsConfig.VerifyPeerCertificate = func(rawCerts [][]byte, verifiedChains [][]*x509.Certificate) error {
-				return verifyPublicKeySHA256(options.ClientCertificatePublicKeySHA256, rawCerts, tlsConfig.Time)
+				return VerifyPublicKeySHA256(options.ClientCertificatePublicKeySHA256, rawCerts)
 			}
 		} else {
 			return nil, E.New("missing client_certificate, client_certificate_path or client_certificate_public_key_sha256 for client authentication")
@@ -471,8 +485,15 @@ func NewSTDServer(ctx context.Context, logger log.ContextLogger, options option.
 			return nil, err
 		}
 	}
+	var handshakeTimeout time.Duration
+	if options.HandshakeTimeout > 0 {
+		handshakeTimeout = options.HandshakeTimeout.Build()
+	} else {
+		handshakeTimeout = C.TCPTimeout
+	}
 	serverConfig := &STDServerConfig{
 		config:                tlsConfig,
+		handshakeTimeout:      handshakeTimeout,
 		logger:                logger,
 		certificateProvider:   certificateProvider,
 		acmeService:           acmeService,

sing-box/common/tls/utls_client.go

@@ -14,6 +14,7 @@ import (
 
 	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-box/common/tlsfragment"
+	"github.com/sagernet/sing-box/common/tlsspoof"
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/option"
 	"github.com/sagernet/sing/common"
@@ -28,17 +29,33 @@ import (
 type UTLSClientConfig struct {
 	ctx                   context.Context
 	config                *utls.Config
+	serverName            string
+	disableSNI            bool
+	verifyServerName      bool
+	handshakeTimeout      time.Duration
 	id                    utls.ClientHelloID
 	fragment              bool
 	fragmentFallbackDelay time.Duration
 	recordFragment        bool
+	spoof                 string
+	spoofMethod           tlsspoof.Method
 }
 
 func (c *UTLSClientConfig) ServerName() string {
-	return c.config.ServerName
+	return c.serverName
 }
 
 func (c *UTLSClientConfig) SetServerName(serverName string) {
+	c.serverName = serverName
+	if c.disableSNI {
+		c.config.ServerName = ""
+		if c.verifyServerName {
+			c.config.InsecureServerNameToVerify = serverName
+		} else {
+			c.config.InsecureServerNameToVerify = ""
+		}
+		return
+	}
 	c.config.ServerName = serverName
 }
 
@@ -53,6 +70,14 @@ func (c *UTLSClientConfig) SetNextProtos(nextProto []string) {
 	c.config.NextProtos = nextProto
 }
 
+func (c *UTLSClientConfig) HandshakeTimeout() time.Duration {
+	return c.handshakeTimeout
+}
+
+func (c *UTLSClientConfig) SetHandshakeTimeout(timeout time.Duration) {
+	c.handshakeTimeout = timeout
+}
+
 func (c *UTLSClientConfig) STDConfig() (*STDConfig, error) {
 	return nil, E.New("unsupported usage for uTLS")
 }
@@ -61,6 +86,10 @@ func (c *UTLSClientConfig) Client(conn net.Conn) (Conn, error) {
 	if c.recordFragment {
 		conn = tf.NewConn(conn, c.ctx, c.fragment, c.recordFragment, c.fragmentFallbackDelay)
 	}
+	conn, err := applyTLSSpoof(conn, c.spoof, c.spoofMethod)
+	if err != nil {
+		return nil, err
+	}
 	return &utlsALPNWrapper{utlsConnWrapper{utls.UClient(conn, c.config.Clone(), c.id)}, c.config.NextProtos}, nil
 }
 
@@ -69,9 +98,22 @@ func (c *UTLSClientConfig) SetSessionIDGenerator(generator func(clientHello []by
 }
 
 func (c *UTLSClientConfig) Clone() Config {
-	return &UTLSClientConfig{
-		c.ctx, c.config.Clone(), c.id, c.fragment, c.fragmentFallbackDelay, c.recordFragment,
+	cloned := &UTLSClientConfig{
+		ctx:                   c.ctx,
+		config:                c.config.Clone(),
+		serverName:            c.serverName,
+		disableSNI:            c.disableSNI,
+		verifyServerName:      c.verifyServerName,
+		handshakeTimeout:      c.handshakeTimeout,
+		id:                    c.id,
+		fragment:              c.fragment,
+		fragmentFallbackDelay: c.fragmentFallbackDelay,
+		recordFragment:        c.recordFragment,
+		spoof:                 c.spoof,
+		spoofMethod:           c.spoofMethod,
 	}
+	cloned.SetServerName(cloned.serverName)
+	return cloned
 }
 
 func (c *UTLSClientConfig) ECHConfigList() []byte {
@@ -143,29 +185,29 @@ func (c *utlsALPNWrapper) HandshakeContext(ctx context.Context) error {
 }
 
 func NewUTLSClient(ctx context.Context, logger logger.ContextLogger, serverAddress string, options option.OutboundTLSOptions) (Config, error) {
+	return newUTLSClient(ctx, logger, serverAddress, options, false)
+}
+
+func newUTLSClient(ctx context.Context, logger logger.ContextLogger, serverAddress string, options option.OutboundTLSOptions, allowEmptyServerName bool) (Config, error) {
 	var serverName string
 	if options.ServerName != "" {
 		serverName = options.ServerName
 	} else if serverAddress != "" {
 		serverName = serverAddress
 	}
-	if serverName == "" && !options.Insecure {
-		return nil, E.New("missing server_name or insecure=true")
+	if serverName == "" && !options.Insecure && !allowEmptyServerName {
+		return nil, errMissingServerName
 	}
 
 	var tlsConfig utls.Config
 	tlsConfig.Time = ntp.TimeFuncFromContext(ctx)
 	tlsConfig.RootCAs = adapter.RootPoolFromContext(ctx)
-	if !options.DisableSNI {
-		tlsConfig.ServerName = serverName
-	}
 	if options.Insecure {
 		tlsConfig.InsecureSkipVerify = options.Insecure
 	} else if options.DisableSNI {
 		if options.Reality != nil && options.Reality.Enabled {
 			return nil, E.New("disable_sni is unsupported in reality")
 		}
-		tlsConfig.InsecureServerNameToVerify = serverName
 	}
 	if len(options.CertificatePublicKeySHA256) > 0 {
 		if len(options.Certificate) > 0 || options.CertificatePath != "" {
@@ -173,7 +215,7 @@ func NewUTLSClient(ctx context.Context, logger logger.ContextLogger, serverAddre
 		}
 		tlsConfig.InsecureSkipVerify = true
 		tlsConfig.VerifyPeerCertificate = func(rawCerts [][]byte, verifiedChains [][]*x509.Certificate) error {
-			return verifyPublicKeySHA256(options.CertificatePublicKeySHA256, rawCerts, tlsConfig.Time)
+			return VerifyPublicKeySHA256(options.CertificatePublicKeySHA256, rawCerts)
 		}
 	}
 	if len(options.ALPN) > 0 {
@@ -251,11 +293,35 @@ func NewUTLSClient(ctx context.Context, logger logger.ContextLogger, serverAddre
 	} else if len(clientCertificate) > 0 || len(clientKey) > 0 {
 		return nil, E.New("client certificate and client key must be provided together")
 	}
+	var handshakeTimeout time.Duration
+	if options.HandshakeTimeout > 0 {
+		handshakeTimeout = options.HandshakeTimeout.Build()
+	} else {
+		handshakeTimeout = C.TCPTimeout
+	}
+	spoof, spoofMethod, err := parseTLSSpoofOptions(serverName, options)
+	if err != nil {
+		return nil, err
+	}
 	id, err := uTLSClientHelloID(options.UTLS.Fingerprint)
 	if err != nil {
 		return nil, err
 	}
-	var config Config = &UTLSClientConfig{ctx, &tlsConfig, id, options.Fragment, time.Duration(options.FragmentFallbackDelay), options.RecordFragment}
+	var config Config = &UTLSClientConfig{
+		ctx:                   ctx,
+		config:                &tlsConfig,
+		serverName:            serverName,
+		disableSNI:            options.DisableSNI,
+		verifyServerName:      options.DisableSNI && !options.Insecure,
+		handshakeTimeout:      handshakeTimeout,
+		id:                    id,
+		fragment:              options.Fragment,
+		fragmentFallbackDelay: time.Duration(options.FragmentFallbackDelay),
+		recordFragment:        options.RecordFragment,
+		spoof:                 spoof,
+		spoofMethod:           spoofMethod,
+	}
+	config.SetServerName(serverName)
 	if options.ECH != nil && options.ECH.Enabled {
 		if options.Reality != nil && options.Reality.Enabled {
 			return nil, E.New("Reality is conflict with ECH")

sing-box/common/tls/utls_stub.go

@@ -12,10 +12,18 @@ import (
 )
 
 func NewUTLSClient(ctx context.Context, logger logger.ContextLogger, serverAddress string, options option.OutboundTLSOptions) (Config, error) {
+	return newUTLSClient(ctx, logger, serverAddress, options, false)
+}
+
+func newUTLSClient(ctx context.Context, logger logger.ContextLogger, serverAddress string, options option.OutboundTLSOptions, allowEmptyServerName bool) (Config, error) {
 	return nil, E.New(`uTLS is not included in this build, rebuild with -tags with_utls`)
 }
 
 func NewRealityClient(ctx context.Context, logger logger.ContextLogger, serverAddress string, options option.OutboundTLSOptions) (Config, error) {
+	return newRealityClient(ctx, logger, serverAddress, options, false)
+}
+
+func newRealityClient(ctx context.Context, logger logger.ContextLogger, serverAddress string, options option.OutboundTLSOptions, allowEmptyServerName bool) (Config, error) {
 	return nil, E.New(`uTLS, which is required by reality is not included in this build, rebuild with -tags with_utls`)
 }
 

sing-box/common/tlsfragment/index.go

@@ -23,9 +23,10 @@ const (
 )
 
 type MyServerName struct {
-	Index      int
-	Length     int
-	ServerName string
+	Index                     int
+	Length                    int
+	ServerName                string
+	ExtensionsListLengthIndex int
 }
 
 func IndexTLSServerName(payload []byte) *MyServerName {
@@ -41,6 +42,7 @@ func IndexTLSServerName(payload []byte) *MyServerName {
 		return nil
 	}
 	serverName.Index += recordLayerHeaderLen
+	serverName.ExtensionsListLengthIndex += recordLayerHeaderLen
 	return serverName
 }
 
@@ -82,6 +84,7 @@ func indexTLSServerNameFromHandshake(handshake []byte) *MyServerName {
 		return nil
 	}
 	serverName.Index += currentIndex
+	serverName.ExtensionsListLengthIndex = currentIndex
 	return serverName
 }
 

sing-box/common/tlsspoof/client_hello.go

@@ -0,0 +1,86 @@
+package tlsspoof
+
+import (
+	"encoding/binary"
+
+	tf "github.com/sagernet/sing-box/common/tlsfragment"
+	E "github.com/sagernet/sing/common/exceptions"
+)
+
+const (
+	recordLengthOffset    = 3
+	handshakeLengthOffset = 6
+)
+
+// server_name extension layout (RFC 6066 §3). Offsets are relative to the
+// SNI host name (index returned by the parser):
+//
+//	...    uint16 extension_type = 0x0000     (host_name - 9)
+//	...    uint16 extension_data_length       (host_name - 7)
+//	...    uint16 server_name_list_length     (host_name - 5)
+//	...    uint8  name_type = host_name       (host_name - 3)
+//	...    uint16 host_name_length            (host_name - 2)
+//	sni    host_name                          (host_name)
+const (
+	extensionDataLengthOffsetFromSNI = -7
+	listLengthOffsetFromSNI          = -5
+	hostNameLengthOffsetFromSNI      = -2
+)
+
+func rewriteSNI(record []byte, fakeSNI string) ([]byte, error) {
+	if len(fakeSNI) > 0xFFFF {
+		return nil, E.New("fake SNI too long: ", len(fakeSNI), " bytes")
+	}
+	serverName := tf.IndexTLSServerName(record)
+	if serverName == nil {
+		return nil, E.New("not a ClientHello with SNI")
+	}
+
+	delta := len(fakeSNI) - serverName.Length
+	out := make([]byte, len(record)+delta)
+	copy(out, record[:serverName.Index])
+	copy(out[serverName.Index:], fakeSNI)
+	copy(out[serverName.Index+len(fakeSNI):], record[serverName.Index+serverName.Length:])
+
+	err := patchUint16(out, recordLengthOffset, delta)
+	if err != nil {
+		return nil, E.Cause(err, "patch record length")
+	}
+	err = patchUint24(out, handshakeLengthOffset, delta)
+	if err != nil {
+		return nil, E.Cause(err, "patch handshake length")
+	}
+	for _, off := range []int{
+		serverName.ExtensionsListLengthIndex,
+		serverName.Index + extensionDataLengthOffsetFromSNI,
+		serverName.Index + listLengthOffsetFromSNI,
+		serverName.Index + hostNameLengthOffsetFromSNI,
+	} {
+		err = patchUint16(out, off, delta)
+		if err != nil {
+			return nil, E.Cause(err, "patch length at offset ", off)
+		}
+	}
+	return out, nil
+}
+
+func patchUint16(data []byte, offset, delta int) error {
+	patched := int(binary.BigEndian.Uint16(data[offset:])) + delta
+	if patched < 0 || patched > 0xFFFF {
+		return E.New("uint16 out of range: ", patched)
+	}
+	binary.BigEndian.PutUint16(data[offset:], uint16(patched))
+	return nil
+}
+
+func patchUint24(data []byte, offset, delta int) error {
+	original := int(data[offset])<<16 | int(data[offset+1])<<8 | int(data[offset+2])
+	patched := original + delta
+	if patched < 0 || patched > 0xFFFFFF {
+		return E.New("uint24 out of range: ", patched)
+	}
+	data[offset] = byte(patched >> 16)
+	data[offset+1] = byte(patched >> 8)
+	data[offset+2] = byte(patched)
+	return nil
+}

sing-box/common/tlsspoof/client_hello_test.go

@@ -0,0 +1,79 @@
+package tlsspoof
+
+import (
+	"encoding/binary"
+	"encoding/hex"
+	"testing"
+
+	tf "github.com/sagernet/sing-box/common/tlsfragment"
+
+	"github.com/stretchr/testify/require"
+)
+
+// realClientHello is a captured Chrome ClientHello for github.com,
+// reused from common/tlsfragment/index_test.go.
+const realClientHello = "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"
+
+func decodeClientHello(t *testing.T) []byte {
+	t.Helper()
+	payload, err := hex.DecodeString(realClientHello)
+	require.NoError(t, err)
+	return payload
+}
+
+func assertConsistent(t *testing.T, payload []byte, expectedSNI string) {
+	t.Helper()
+	serverName := tf.IndexTLSServerName(payload)
+	require.NotNil(t, serverName, "parser should find SNI in rewritten payload")
+	require.Equal(t, expectedSNI, serverName.ServerName)
+	require.Equal(t, expectedSNI, string(payload[serverName.Index:serverName.Index+serverName.Length]))
+	// Record length must equal len(payload) - 5.
+	recordLen := binary.BigEndian.Uint16(payload[3:5])
+	require.Equal(t, len(payload)-5, int(recordLen), "record length must equal payload - 5")
+	// Handshake length must equal len(payload) - 5 - 4.
+	handshakeLen := int(payload[6])<<16 | int(payload[7])<<8 | int(payload[8])
+	require.Equal(t, len(payload)-5-4, handshakeLen, "handshake length must equal payload - 9")
+}
+
+func TestRewriteSNI_ShorterReplacement(t *testing.T) {
+	t.Parallel()
+	payload := decodeClientHello(t)
+	out, err := rewriteSNI(payload, "a.io")
+	require.NoError(t, err)
+	require.Len(t, out, len(payload)-6) // original "github.com" is 10 bytes, "a.io" is 4 bytes.
+	assertConsistent(t, out, "a.io")
+}
+
+func TestRewriteSNI_SameLengthReplacement(t *testing.T) {
+	t.Parallel()
+	payload := decodeClientHello(t)
+	out, err := rewriteSNI(payload, "example.co")
+	require.NoError(t, err)
+	require.Len(t, out, len(payload))
+	assertConsistent(t, out, "example.co")
+}
+
+func TestRewriteSNI_LongerReplacement(t *testing.T) {
+	t.Parallel()
+	payload := decodeClientHello(t)
+	out, err := rewriteSNI(payload, "letsencrypt.org")
+	require.NoError(t, err)
+	require.Len(t, out, len(payload)+5) // "letsencrypt.org" is 15, original 10, delta 5.
+	assertConsistent(t, out, "letsencrypt.org")
+}
+
+func TestRewriteSNI_NoSNIReturnsError(t *testing.T) {
+	t.Parallel()
+	// Truncated payload — not a valid ClientHello.
+	_, err := rewriteSNI([]byte{0x16, 0x03, 0x01, 0x00, 0x01, 0x01}, "x.com")
+	require.Error(t, err)
+}
+
+func TestRewriteSNI_DoesNotMutateInput(t *testing.T) {
+	t.Parallel()
+	payload := decodeClientHello(t)
+	original := append([]byte(nil), payload...)
+	_, err := rewriteSNI(payload, "letsencrypt.org")
+	require.NoError(t, err)
+	require.Equal(t, original, payload, "input payload must not be mutated")
+}

sing-box/common/tlsspoof/conn_test.go

@@ -0,0 +1,126 @@
+package tlsspoof
+
+import (
+	"encoding/hex"
+	"io"
+	"net"
+	"testing"
+
+	tf "github.com/sagernet/sing-box/common/tlsfragment"
+
+	"github.com/stretchr/testify/require"
+)
+
+type fakeSpoofer struct {
+	injected [][]byte
+	err      error
+}
+
+func (f *fakeSpoofer) Inject(payload []byte) error {
+	if f.err != nil {
+		return f.err
+	}
+	f.injected = append(f.injected, append([]byte(nil), payload...))
+	return nil
+}
+
+func (f *fakeSpoofer) Close() error {
+	return nil
+}
+
+func readAll(t *testing.T, conn net.Conn) []byte {
+	t.Helper()
+	data, err := io.ReadAll(conn)
+	require.NoError(t, err)
+	return data
+}
+
+func TestConn_Write_InjectsThenForwards(t *testing.T) {
+	t.Parallel()
+	payload, err := hex.DecodeString(realClientHello)
+	require.NoError(t, err)
+
+	client, server := net.Pipe()
+	spoofer := &fakeSpoofer{}
+	wrapped := NewConn(client, spoofer, "letsencrypt.org")
+
+	serverRead := make(chan []byte, 1)
+	go func() {
+		serverRead <- readAll(t, server)
+	}()
+
+	n, err := wrapped.Write(payload)
+	require.NoError(t, err)
+	require.Equal(t, len(payload), n)
+	require.NoError(t, wrapped.Close())
+
+	forwarded := <-serverRead
+	require.Equal(t, payload, forwarded, "underlying conn must receive the real ClientHello unchanged")
+	require.Len(t, spoofer.injected, 1)
+
+	injected := spoofer.injected[0]
+	serverName := tf.IndexTLSServerName(injected)
+	require.NotNil(t, serverName, "injected payload must parse as ClientHello")
+	require.Equal(t, "letsencrypt.org", serverName.ServerName)
+}
+
+func TestConn_Write_SecondWriteDoesNotInject(t *testing.T) {
+	t.Parallel()
+	payload, err := hex.DecodeString(realClientHello)
+	require.NoError(t, err)
+
+	client, server := net.Pipe()
+	spoofer := &fakeSpoofer{}
+	wrapped := NewConn(client, spoofer, "letsencrypt.org")
+
+	serverRead := make(chan []byte, 1)
+	go func() {
+		serverRead <- readAll(t, server)
+	}()
+
+	_, err = wrapped.Write(payload)
+	require.NoError(t, err)
+	_, err = wrapped.Write([]byte("second"))
+	require.NoError(t, err)
+	require.NoError(t, wrapped.Close())
+
+	forwarded := <-serverRead
+	require.Equal(t, append(append([]byte(nil), payload...), []byte("second")...), forwarded)
+	require.Len(t, spoofer.injected, 1)
+}
+
+func TestConn_Write_NonClientHelloReturnsError(t *testing.T) {
+	t.Parallel()
+	client, server := net.Pipe()
+	defer client.Close()
+	defer server.Close()
+
+	spoofer := &fakeSpoofer{}
+	wrapped := NewConn(client, spoofer, "letsencrypt.org")
+
+	_, err := wrapped.Write([]byte("not a ClientHello"))
+	require.Error(t, err)
+	require.Empty(t, spoofer.injected)
+}
+
+func TestParseMethod(t *testing.T) {
+	t.Parallel()
+	cases := map[string]struct {
+		want Method
+		ok   bool
+	}{
+		"":               {MethodWrongSequence, true},
+		"wrong-sequence": {MethodWrongSequence, true},
+		"wrong-checksum": {MethodWrongChecksum, true},
+		"nonsense":       {0, false},
+	}
+	for input, expected := range cases {
+		m, err := ParseMethod(input)
+		if !expected.ok {
+			require.Error(t, err, "input=%q", input)
+			continue
+		}
+		require.NoError(t, err, "input=%q", input)
+		require.Equal(t, expected.want, m, "input=%q", input)
+	}
+}

sing-box/common/tlsspoof/endpoints.go

@@ -0,0 +1,29 @@
+package tlsspoof
+
+import (
+	"net"
+	"net/netip"
+
+	"github.com/sagernet/sing/common"
+	E "github.com/sagernet/sing/common/exceptions"
+	M "github.com/sagernet/sing/common/metadata"
+)
+
+// The returned addresses are v4-unmapped and share the same family.
+func tcpEndpoints(conn net.Conn) (*net.TCPConn, netip.AddrPort, netip.AddrPort, error) {
+	tcpConn, isTCP := common.Cast[*net.TCPConn](conn)
+	if !isTCP {
+		return nil, netip.AddrPort{}, netip.AddrPort{}, E.New("tls_spoof: underlying conn is not *net.TCPConn")
+	}
+	local := M.AddrPortFromNet(tcpConn.LocalAddr())
+	remote := M.AddrPortFromNet(tcpConn.RemoteAddr())
+	if !local.IsValid() || !remote.IsValid() {
+		return nil, netip.AddrPort{}, netip.AddrPort{}, E.New("tls_spoof: invalid conn address")
+	}
+	local = netip.AddrPortFrom(local.Addr().Unmap(), local.Port())
+	remote = netip.AddrPortFrom(remote.Addr().Unmap(), remote.Port())
+	if local.Addr().Is4() != remote.Addr().Is4() {
+		return nil, netip.AddrPort{}, netip.AddrPort{}, E.New("tls_spoof: local/remote address family mismatch")
+	}
+	return tcpConn, local, remote, nil
+}

sing-box/common/tlsspoof/integration_darwin_test.go

@@ -0,0 +1,5 @@
+//go:build darwin
+
+package tlsspoof
+
+const loopbackInterface = "lo0"

sing-box/common/tlsspoof/integration_linux_test.go

@@ -0,0 +1,5 @@
+//go:build linux
+
+package tlsspoof
+
+const loopbackInterface = "lo"

sing-box/common/tlsspoof/integration_test.go

@@ -0,0 +1,112 @@
+//go:build linux || darwin
+
+package tlsspoof
+
+import (
+	"bufio"
+	"context"
+	"fmt"
+	"io"
+	"net"
+	"os"
+	"os/exec"
+	"strings"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+)
+
+func requireRoot(t *testing.T) {
+	t.Helper()
+	if os.Geteuid() != 0 {
+		t.Fatal("integration test requires root")
+	}
+}
+
+func tcpdumpObserver(t *testing.T, iface string, port uint16, needle string, do func(), wait time.Duration) bool {
+	t.Helper()
+	ctx, cancel := context.WithTimeout(context.Background(), wait)
+	defer cancel()
+	cmd := exec.CommandContext(ctx, "tcpdump", "-i", iface, "-n", "-A", "-l",
+		"-s", "4096", fmt.Sprintf("tcp and port %d", port))
+	cmd.Cancel = func() error {
+		return cmd.Process.Signal(os.Interrupt)
+	}
+	stdout, err := cmd.StdoutPipe()
+	require.NoError(t, err)
+	stderr, err := cmd.StderrPipe()
+	require.NoError(t, err)
+	require.NoError(t, cmd.Start())
+	t.Cleanup(func() {
+		_ = cmd.Process.Signal(os.Interrupt)
+		_ = cmd.Wait()
+	})
+
+	ready := make(chan struct{})
+	go func() {
+		scanner := bufio.NewScanner(stderr)
+		for scanner.Scan() {
+			if strings.Contains(scanner.Text(), "listening on") {
+				close(ready)
+				io.Copy(io.Discard, stderr)
+				return
+			}
+		}
+	}()
+
+	select {
+	case <-ready:
+	case <-time.After(2 * time.Second):
+		t.Fatal("tcpdump did not attach within 2s")
+	}
+
+	var found atomic.Bool
+	readerDone := make(chan struct{})
+	go func() {
+		defer close(readerDone)
+		scanner := bufio.NewScanner(stdout)
+		scanner.Buffer(make([]byte, 0, 64*1024), 1024*1024)
+		for scanner.Scan() {
+			if strings.Contains(scanner.Text(), needle) {
+				found.Store(true)
+			}
+		}
+	}()
+
+	do()
+
+	time.Sleep(200 * time.Millisecond)
+	_ = cmd.Process.Signal(os.Interrupt)
+	<-readerDone
+	return found.Load()
+}
+
+func dialLocalEchoServer(t *testing.T) (client net.Conn, serverPort uint16) {
+	t.Helper()
+	listener, err := net.Listen("tcp4", "127.0.0.1:0")
+	require.NoError(t, err)
+
+	accepted := make(chan net.Conn, 1)
+	go func() {
+		c, err := listener.Accept()
+		if err == nil {
+			accepted <- c
+		}
+		close(accepted)
+	}()
+	addr := listener.Addr().(*net.TCPAddr)
+	client, err = net.Dial("tcp4", addr.String())
+	require.NoError(t, err)
+	server := <-accepted
+	require.NotNil(t, server)
+
+	go io.Copy(io.Discard, server)
+	t.Cleanup(func() {
+		client.Close()
+		server.Close()
+		listener.Close()
+	})
+	return client, uint16(addr.Port)
+}

sing-box/common/tlsspoof/integration_unix_test.go

@@ -0,0 +1,100 @@
+//go:build linux || darwin
+
+package tlsspoof
+
+import (
+	"encoding/hex"
+	"io"
+	"net"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestIntegrationSpoofer_WrongChecksum(t *testing.T) {
+	requireRoot(t)
+	client, serverPort := dialLocalEchoServer(t)
+	spoofer, err := NewSpoofer(client, MethodWrongChecksum)
+	require.NoError(t, err)
+	defer spoofer.Close()
+
+	payload, err := hex.DecodeString(realClientHello)
+	require.NoError(t, err)
+	fake, err := rewriteSNI(payload, "letsencrypt.org")
+	require.NoError(t, err)
+
+	captured := tcpdumpObserver(t, loopbackInterface, serverPort, "letsencrypt.org", func() {
+		require.NoError(t, spoofer.Inject(fake))
+	}, 3*time.Second)
+	require.True(t, captured, "injected fake ClientHello must be observable on loopback")
+}
+
+func TestIntegrationSpoofer_WrongSequence(t *testing.T) {
+	requireRoot(t)
+	client, serverPort := dialLocalEchoServer(t)
+	spoofer, err := NewSpoofer(client, MethodWrongSequence)
+	require.NoError(t, err)
+	defer spoofer.Close()
+
+	payload, err := hex.DecodeString(realClientHello)
+	require.NoError(t, err)
+	fake, err := rewriteSNI(payload, "letsencrypt.org")
+	require.NoError(t, err)
+
+	captured := tcpdumpObserver(t, loopbackInterface, serverPort, "letsencrypt.org", func() {
+		require.NoError(t, spoofer.Inject(fake))
+	}, 3*time.Second)
+	require.True(t, captured, "injected fake ClientHello must be observable on loopback")
+}
+
+// Loopback bypasses TCP checksum validation, so wrong-sequence is used instead.
+func TestIntegrationConn_InjectsThenForwardsRealCH(t *testing.T) {
+	requireRoot(t)
+
+	listener, err := net.Listen("tcp4", "127.0.0.1:0")
+	require.NoError(t, err)
+
+	serverReceived := make(chan []byte, 1)
+	go func() {
+		conn, err := listener.Accept()
+		if err != nil {
+			return
+		}
+		defer conn.Close()
+		_ = conn.SetReadDeadline(time.Now().Add(2 * time.Second))
+		got, _ := io.ReadAll(conn)
+		serverReceived <- got
+	}()
+
+	addr := listener.Addr().(*net.TCPAddr)
+	serverPort := uint16(addr.Port)
+	client, err := net.Dial("tcp4", addr.String())
+	require.NoError(t, err)
+	t.Cleanup(func() {
+		client.Close()
+		listener.Close()
+	})
+
+	spoofer, err := NewSpoofer(client, MethodWrongSequence)
+	require.NoError(t, err)
+	wrapped := NewConn(client, spoofer, "letsencrypt.org")
+
+	payload, err := hex.DecodeString(realClientHello)
+	require.NoError(t, err)
+
+	captured := tcpdumpObserver(t, loopbackInterface, serverPort, "letsencrypt.org", func() {
+		n, err := wrapped.Write(payload)
+		require.NoError(t, err)
+		require.Equal(t, len(payload), n)
+	}, 3*time.Second)
+	require.True(t, captured, "fake ClientHello with letsencrypt.org SNI must be on the wire")
+
+	_ = wrapped.Close()
+	select {
+	case got := <-serverReceived:
+		require.Equal(t, payload, got, "server must receive real ClientHello unchanged (wrong-sequence fake must be dropped)")
+	case <-time.After(2 * time.Second):
+		t.Fatal("echo server did not receive real ClientHello")
+	}
+}

sing-box/common/tlsspoof/integration_windows_test.go

@@ -0,0 +1,139 @@
+//go:build windows && (amd64 || 386)
+
+package tlsspoof
+
+import (
+	"encoding/hex"
+	"io"
+	"net"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+)
+
+func newSpoofer(t *testing.T, conn net.Conn, method Method) Spoofer {
+	t.Helper()
+	spoofer, err := NewSpoofer(conn, method)
+	require.NoError(t, err)
+	return spoofer
+}
+
+// Basic lifecycle: opening a spoofer against a live TCP conn installs
+// the driver, spawns run(), then shuts down cleanly without ever
+// injecting. Exercises the close path that cancels an in-flight Recv.
+func TestIntegrationSpooferOpenClose(t *testing.T) {
+	listener, err := net.Listen("tcp4", "127.0.0.1:0")
+	require.NoError(t, err)
+	t.Cleanup(func() { listener.Close() })
+
+	accepted := make(chan net.Conn, 1)
+	go func() {
+		c, _ := listener.Accept()
+		accepted <- c
+	}()
+	client, err := net.Dial("tcp4", listener.Addr().String())
+	require.NoError(t, err)
+	t.Cleanup(func() { client.Close() })
+	server := <-accepted
+	t.Cleanup(func() {
+		if server != nil {
+			server.Close()
+		}
+	})
+
+	spoofer := newSpoofer(t, client, MethodWrongSequence)
+	require.NoError(t, spoofer.Close())
+}
+
+// End-to-end: Conn.Write injects a fake ClientHello with a rewritten
+// SNI, then forwards the real ClientHello. With wrong-sequence, the
+// fake lands before the connection's send-next sequence — the peer TCP
+// stack treats it as already-received and only surfaces the real bytes
+// to the echo server.
+func TestIntegrationConnInjectsThenForwardsRealCH(t *testing.T) {
+	listener, err := net.Listen("tcp4", "127.0.0.1:0")
+	require.NoError(t, err)
+	t.Cleanup(func() { listener.Close() })
+
+	serverReceived := make(chan []byte, 1)
+	go func() {
+		conn, acceptErr := listener.Accept()
+		if acceptErr != nil {
+			return
+		}
+		defer conn.Close()
+		_ = conn.SetReadDeadline(time.Now().Add(5 * time.Second))
+		got, _ := io.ReadAll(conn)
+		serverReceived <- got
+	}()
+
+	client, err := net.Dial("tcp4", listener.Addr().String())
+	require.NoError(t, err)
+	t.Cleanup(func() { client.Close() })
+
+	spoofer := newSpoofer(t, client, MethodWrongSequence)
+	wrapped := NewConn(client, spoofer, "letsencrypt.org")
+
+	payload, err := hex.DecodeString(realClientHello)
+	require.NoError(t, err)
+
+	n, err := wrapped.Write(payload)
+	require.NoError(t, err)
+	require.Equal(t, len(payload), n)
+	_ = wrapped.Close()
+
+	select {
+	case got := <-serverReceived:
+		require.Equal(t, payload, got,
+			"server must receive real ClientHello unchanged (wrong-sequence fake must be dropped)")
+	case <-time.After(5 * time.Second):
+		t.Fatal("echo server did not receive real ClientHello within 5s")
+	}
+}
+
+// Inject before any kernel payload: stages the fake, then Write flushes
+// the real CH. Same terminal expectation as the Conn variant but via the
+// Spoofer primitive directly.
+func TestIntegrationSpooferInjectThenWrite(t *testing.T) {
+	listener, err := net.Listen("tcp4", "127.0.0.1:0")
+	require.NoError(t, err)
+	t.Cleanup(func() { listener.Close() })
+
+	serverReceived := make(chan []byte, 1)
+	go func() {
+		conn, acceptErr := listener.Accept()
+		if acceptErr != nil {
+			return
+		}
+		defer conn.Close()
+		_ = conn.SetReadDeadline(time.Now().Add(5 * time.Second))
+		got, _ := io.ReadAll(conn)
+		serverReceived <- got
+	}()
+
+	client, err := net.Dial("tcp4", listener.Addr().String())
+	require.NoError(t, err)
+	t.Cleanup(func() { client.Close() })
+
+	spoofer := newSpoofer(t, client, MethodWrongSequence)
+	t.Cleanup(func() { spoofer.Close() })
+
+	payload, err := hex.DecodeString(realClientHello)
+	require.NoError(t, err)
+	fake, err := rewriteSNI(payload, "letsencrypt.org")
+	require.NoError(t, err)
+	require.NoError(t, spoofer.Inject(fake))
+
+	n, err := client.Write(payload)
+	require.NoError(t, err)
+	require.Equal(t, len(payload), n)
+	_ = client.Close()
+
+	select {
+	case got := <-serverReceived:
+		require.Equal(t, payload, got)
+	case <-time.After(5 * time.Second):
+		t.Fatal("echo server did not receive real ClientHello within 5s")
+	}
+}

sing-box/common/tlsspoof/packet.go

@@ -0,0 +1,100 @@
+package tlsspoof
+
+import (
+	"net/netip"
+
+	"github.com/sagernet/sing-tun/gtcpip/checksum"
+	"github.com/sagernet/sing-tun/gtcpip/header"
+	E "github.com/sagernet/sing/common/exceptions"
+)
+
+const (
+	defaultTTL        uint8  = 64
+	defaultWindowSize uint16 = 0xFFFF
+	tcpHeaderLen             = header.TCPMinimumSize
+)
+
+func buildTCPSegment(
+	src netip.AddrPort,
+	dst netip.AddrPort,
+	seqNum uint32,
+	ackNum uint32,
+	payload []byte,
+	corruptChecksum bool,
+) []byte {
+	if src.Addr().Is4() != dst.Addr().Is4() {
+		panic("tlsspoof: mixed IPv4/IPv6 address family")
+	}
+	var (
+		frame       []byte
+		ipHeaderLen int
+	)
+	if src.Addr().Is4() {
+		ipHeaderLen = header.IPv4MinimumSize
+		frame = make([]byte, ipHeaderLen+tcpHeaderLen+len(payload))
+		ip := header.IPv4(frame[:ipHeaderLen])
+		ip.Encode(&header.IPv4Fields{
+			TotalLength: uint16(len(frame)),
+			ID:          0,
+			TTL:         defaultTTL,
+			Protocol:    uint8(header.TCPProtocolNumber),
+			SrcAddr:     src.Addr(),
+			DstAddr:     dst.Addr(),
+		})
+		ip.SetChecksum(^ip.CalculateChecksum())
+	} else {
+		ipHeaderLen = header.IPv6MinimumSize
+		frame = make([]byte, ipHeaderLen+tcpHeaderLen+len(payload))
+		ip := header.IPv6(frame[:ipHeaderLen])
+		ip.Encode(&header.IPv6Fields{
+			PayloadLength:     uint16(tcpHeaderLen + len(payload)),
+			TransportProtocol: header.TCPProtocolNumber,
+			HopLimit:          defaultTTL,
+			SrcAddr:           src.Addr(),
+			DstAddr:           dst.Addr(),
+		})
+	}
+	encodeTCP(frame, ipHeaderLen, src, dst, seqNum, ackNum, payload, corruptChecksum)
+	return frame
+}
+
+func encodeTCP(frame []byte, ipHeaderLen int, src, dst netip.AddrPort, seqNum, ackNum uint32, payload []byte, corruptChecksum bool) {
+	tcp := header.TCP(frame[ipHeaderLen:])
+	copy(frame[ipHeaderLen+tcpHeaderLen:], payload)
+	tcp.Encode(&header.TCPFields{
+		SrcPort:    src.Port(),
+		DstPort:    dst.Port(),
+		SeqNum:     seqNum,
+		AckNum:     ackNum,
+		DataOffset: tcpHeaderLen,
+		Flags:      header.TCPFlagAck | header.TCPFlagPsh,
+		WindowSize: defaultWindowSize,
+	})
+	applyTCPChecksum(tcp, src.Addr(), dst.Addr(), payload, corruptChecksum)
+}
+
+func buildSpoofFrame(method Method, src, dst netip.AddrPort, sendNext, receiveNext uint32, payload []byte) ([]byte, error) {
+	var sequence uint32
+	corrupt := false
+	switch method {
+	case MethodWrongSequence:
+		sequence = sendNext - uint32(len(payload))
+	case MethodWrongChecksum:
+		sequence = sendNext
+		corrupt = true
+	default:
+		return nil, E.New("tls_spoof: unknown method ", method)
+	}
+	return buildTCPSegment(src, dst, sequence, receiveNext, payload, corrupt), nil
+}
+
+func applyTCPChecksum(tcp header.TCP, srcAddr, dstAddr netip.Addr, payload []byte, corrupt bool) {
+	tcpLen := tcpHeaderLen + len(payload)
+	pseudo := header.PseudoHeaderChecksum(header.TCPProtocolNumber, srcAddr.AsSlice(), dstAddr.AsSlice(), uint16(tcpLen))
+	payloadChecksum := checksum.Checksum(payload, 0)
+	tcpChecksum := ^tcp.CalculateChecksum(checksum.Combine(pseudo, payloadChecksum))
+	if corrupt {
+		tcpChecksum ^= 0xFFFF
+	}
+	tcp.SetChecksum(tcpChecksum)
+}

sing-box/common/tlsspoof/packet_test.go

@@ -0,0 +1,77 @@
+package tlsspoof
+
+import (
+	"net/netip"
+	"testing"
+
+	"github.com/sagernet/sing-tun/gtcpip"
+	"github.com/sagernet/sing-tun/gtcpip/checksum"
+	"github.com/sagernet/sing-tun/gtcpip/header"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestBuildTCPSegment_IPv4_ValidChecksum(t *testing.T) {
+	t.Parallel()
+	src := netip.MustParseAddrPort("10.0.0.1:54321")
+	dst := netip.MustParseAddrPort("1.2.3.4:443")
+	payload := []byte("fake-client-hello")
+	frame := buildTCPSegment(src, dst, 100_000, 200_000, payload, false)
+
+	ip := header.IPv4(frame[:header.IPv4MinimumSize])
+	require.True(t, ip.IsChecksumValid())
+
+	tcp := header.TCP(frame[header.IPv4MinimumSize:])
+	payloadChecksum := checksum.Checksum(payload, 0)
+	require.True(t, tcp.IsChecksumValid(
+		tcpip.AddrFrom4(src.Addr().As4()),
+		tcpip.AddrFrom4(dst.Addr().As4()),
+		payloadChecksum,
+		uint16(len(payload)),
+	))
+}
+
+func TestBuildTCPSegment_IPv4_CorruptChecksum(t *testing.T) {
+	t.Parallel()
+	src := netip.MustParseAddrPort("10.0.0.1:54321")
+	dst := netip.MustParseAddrPort("1.2.3.4:443")
+	payload := []byte("fake-client-hello")
+	frame := buildTCPSegment(src, dst, 100_000, 200_000, payload, true)
+
+	tcp := header.TCP(frame[header.IPv4MinimumSize:])
+	payloadChecksum := checksum.Checksum(payload, 0)
+	require.False(t, tcp.IsChecksumValid(
+		tcpip.AddrFrom4(src.Addr().As4()),
+		tcpip.AddrFrom4(dst.Addr().As4()),
+		payloadChecksum,
+		uint16(len(payload)),
+	))
+	// IP checksum must still be valid so the router forwards the packet.
+	require.True(t, header.IPv4(frame[:header.IPv4MinimumSize]).IsChecksumValid())
+}
+
+func TestBuildTCPSegment_IPv6_ValidChecksum(t *testing.T) {
+	t.Parallel()
+	src := netip.MustParseAddrPort("[fe80::1]:54321")
+	dst := netip.MustParseAddrPort("[2606:4700::1]:443")
+	payload := []byte("fake-client-hello")
+	frame := buildTCPSegment(src, dst, 0xDEADBEEF, 0x12345678, payload, false)
+
+	tcp := header.TCP(frame[header.IPv6MinimumSize:])
+	payloadChecksum := checksum.Checksum(payload, 0)
+	require.True(t, tcp.IsChecksumValid(
+		tcpip.AddrFrom16(src.Addr().As16()),
+		tcpip.AddrFrom16(dst.Addr().As16()),
+		payloadChecksum,
+		uint16(len(payload)),
+	))
+}
+
+func TestBuildTCPSegment_MixedFamilyPanics(t *testing.T) {
+	t.Parallel()
+	src := netip.MustParseAddrPort("10.0.0.1:54321")
+	dst := netip.MustParseAddrPort("[2606:4700::1]:443")
+	require.Panics(t, func() {
+		buildTCPSegment(src, dst, 0, 0, nil, false)
+	})
+}