feat: add port whitelist, empty is all port

force-domain add '+' equivalent to force is true
sniffer:
  enable: true
  force-domain:
    - "google.com"
  skip-sni:
    - www.baidu.com
  sniffing:
    - tls

.github/workflows/alpha.yml

@@ -1,4 +1,4 @@
-name: Release
+name: Alpha
 on: [push]
 jobs:
   Feature-build:
@@ -44,18 +44,18 @@ jobs:
       - name: Tag Repo
         uses: richardsimko/update-tag@v1
         with:
-          tag_name: v1.10.0
+          tag_name: alpha
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Upload Release
+      - name: Upload Alpha
         uses: softprops/action-gh-release@v1
-        if: ${{ env.GIT_BRANCH == 'Meta' && success() }}
+        if: ${{ env.GIT_BRANCH != 'Meta' && success() }}
         with:
           tag: ${{ github.ref }}
-          tag_name: v1.10.0
+          tag_name: alpha
           files: bin/*
-          prerelease: false
+          prerelease: true
 
       - name: send telegram message on push
         uses: appleboy/telegram-action@master

Makefile

@@ -1,7 +1,7 @@
 NAME=Clash.Meta
 BINDIR=bin
 BRANCH=$(shell git rev-parse --abbrev-ref HEAD)
-VERSION=$(shell git describe --tags || echo "unknown version")
+VERSION=alpha-$(shell git rev-parse --short HEAD)
 BUILDTIME=$(shell date -u)
 GOBUILD=CGO_ENABLED=0 go build -trimpath -ldflags '-X "github.com/Dreamacro/clash/constant.Version=$(VERSION)" \
 		-X "github.com/Dreamacro/clash/constant.BuildTime=$(BUILDTIME)" \

adapter/adapter.go

@@ -21,7 +21,7 @@ var UnifiedDelay = atomic.NewBool(false)
 
 type Proxy struct {
 	C.ProxyAdapter
-	history *queue.Queue
+	history *queue.Queue[C.DelayHistory]
 	alive   *atomic.Bool
 }
 
@@ -67,7 +67,7 @@ func (p *Proxy) DelayHistory() []C.DelayHistory {
 	queue := p.history.Copy()
 	histories := []C.DelayHistory{}
 	for _, item := range queue {
-		histories = append(histories, item.(C.DelayHistory))
+		histories = append(histories, item)
 	}
 	return histories
 }
@@ -80,11 +80,7 @@ func (p *Proxy) LastDelay() (delay uint16) {
 		return max
 	}
 
-	last := p.history.Last()
-	if last == nil {
-		return max
-	}
-	history := last.(C.DelayHistory)
+	history := p.history.Last()
 	if history.Delay == 0 {
 		return max
 	}
@@ -178,7 +174,7 @@ func (p *Proxy) URLTest(ctx context.Context, url string) (t uint16, err error) {
 }
 
 func NewProxy(adapter C.ProxyAdapter) *Proxy {
-	return &Proxy{adapter, queue.New(10), atomic.NewBool(true)}
+	return &Proxy{adapter, queue.New[C.DelayHistory](10), atomic.NewBool(true)}
 }
 
 func urlToMetadata(rawURL string) (addr C.Metadata, err error) {

adapter/inbound/socket.go

@@ -13,10 +13,14 @@ func NewSocket(target socks5.Addr, conn net.Conn, source C.Type) *context.ConnCo
 	metadata := parseSocksAddr(target)
 	metadata.NetWork = C.TCP
 	metadata.Type = source
-	if ip, port, err := parseAddr(conn.RemoteAddr().String()); err == nil {
+	remoteAddr := conn.RemoteAddr()
+	// Filter when net.Addr interface is nil
+	if remoteAddr != nil {
+		if ip, port, err := parseAddr(remoteAddr.String()); err == nil {
 			metadata.SrcIP = ip
 			metadata.SrcPort = port
 		}
+	}
 
 	return context.NewConnContext(conn, metadata)
 }

adapter/outbound/direct.go

@@ -60,7 +60,7 @@ func NewCompatible() *Direct {
 func NewPass() *Direct {
 	return &Direct{
 		Base: &Base{
-			name: "Pass",
+			name: "PASS",
 			tp:   C.Pass,
 			udp:  true,
 		},

adapter/outbound/http.go

@@ -22,6 +22,7 @@ type Http struct {
 	user      string
 	pass      string
 	tlsConfig *tls.Config
+	option    *HttpOption
 }
 
 type HttpOption struct {
@@ -34,6 +35,7 @@ type HttpOption struct {
 	TLS            bool              `proxy:"tls,omitempty"`
 	SNI            string            `proxy:"sni,omitempty"`
 	SkipCertVerify bool              `proxy:"skip-cert-verify,omitempty"`
+	Headers        map[string]string `proxy:"headers,omitempty"`
 }
 
 // StreamConn implements C.ProxyAdapter
@@ -84,6 +86,13 @@ func (h *Http) shakeHand(metadata *C.Metadata, rw io.ReadWriter) error {
 		},
 	}
 
+	//增加headers
+	if len(h.option.Headers) != 0 {
+		for key, value := range h.option.Headers {
+			req.Header.Add(key, value)
+		}
+	}
+
 	if h.user != "" && h.pass != "" {
 		auth := h.user + ":" + h.pass
 		req.Header.Add("Proxy-Authorization", "Basic "+base64.StdEncoding.EncodeToString([]byte(auth)))
@@ -141,5 +150,6 @@ func NewHttp(option HttpOption) *Http {
 		user:      option.UserName,
 		pass:      option.Password,
 		tlsConfig: tlsConfig,
+		option:    &option,
 	}
 }

adapter/provider/vehicle.go

@@ -58,7 +58,7 @@ func (h *HTTPVehicle) Read() ([]byte, error) {
 	}
 
 	req, err := http.NewRequest(http.MethodGet, uri.String(), nil)
-	req.Header.Set("user-agent", netHttp.UA)
+	req.Header.Set("User-Agent", netHttp.UA)
 
 	if err != nil {
 		return nil, err

common/cache/cache.go

@@ -7,50 +7,50 @@ import (
 )
 
 // Cache store element with a expired time
-type Cache struct {
-	*cache
+type Cache[K comparable, V any] struct {
+	*cache[K, V]
 }
 
-type cache struct {
+type cache[K comparable, V any] struct {
 	mapping sync.Map
-	janitor *janitor
+	janitor *janitor[K, V]
 }
 
-type element struct {
+type element[V any] struct {
 	Expired time.Time
-	Payload any
+	Payload V
 }
 
 // Put element in Cache with its ttl
-func (c *cache) Put(key any, payload any, ttl time.Duration) {
-	c.mapping.Store(key, &element{
+func (c *cache[K, V]) Put(key K, payload V, ttl time.Duration) {
+	c.mapping.Store(key, &element[V]{
 		Payload: payload,
 		Expired: time.Now().Add(ttl),
 	})
 }
 
 // Get element in Cache, and drop when it expired
-func (c *cache) Get(key any) any {
+func (c *cache[K, V]) Get(key K) V {
 	item, exist := c.mapping.Load(key)
 	if !exist {
-		return nil
+		return getZero[V]()
 	}
-	elm := item.(*element)
+	elm := item.(*element[V])
 	// expired
 	if time.Since(elm.Expired) > 0 {
 		c.mapping.Delete(key)
-		return nil
+		return getZero[V]()
 	}
 	return elm.Payload
 }
 
 // GetWithExpire element in Cache with Expire Time
-func (c *cache) GetWithExpire(key any) (payload any, expired time.Time) {
+func (c *cache[K, V]) GetWithExpire(key K) (payload V, expired time.Time) {
 	item, exist := c.mapping.Load(key)
 	if !exist {
 		return
 	}
-	elm := item.(*element)
+	elm := item.(*element[V])
 	// expired
 	if time.Since(elm.Expired) > 0 {
 		c.mapping.Delete(key)
@@ -59,10 +59,10 @@ func (c *cache) GetWithExpire(key any) (payload any, expired time.Time) {
 	return elm.Payload, elm.Expired
 }
 
-func (c *cache) cleanup() {
+func (c *cache[K, V]) cleanup() {
 	c.mapping.Range(func(k, v any) bool {
 		key := k.(string)
-		elm := v.(*element)
+		elm := v.(*element[V])
 		if time.Since(elm.Expired) > 0 {
 			c.mapping.Delete(key)
 		}
@@ -70,12 +70,12 @@ func (c *cache) cleanup() {
 	})
 }
 
-type janitor struct {
+type janitor[K comparable, V any] struct {
 	interval time.Duration
 	stop     chan struct{}
 }
 
-func (j *janitor) process(c *cache) {
+func (j *janitor[K, V]) process(c *cache[K, V]) {
 	ticker := time.NewTicker(j.interval)
 	for {
 		select {
@@ -88,19 +88,19 @@ func (j *janitor) process(c *cache) {
 	}
 }
 
-func stopJanitor(c *Cache) {
+func stopJanitor[K comparable, V any](c *Cache[K, V]) {
 	c.janitor.stop <- struct{}{}
 }
 
 // New return *Cache
-func New(interval time.Duration) *Cache {
-	j := &janitor{
+func New[K comparable, V any](interval time.Duration) *Cache[K, V] {
+	j := &janitor[K, V]{
 		interval: interval,
 		stop:     make(chan struct{}),
 	}
-	c := &cache{janitor: j}
+	c := &cache[K, V]{janitor: j}
 	go j.process(c)
-	C := &Cache{c}
-	runtime.SetFinalizer(C, stopJanitor)
+	C := &Cache[K, V]{c}
+	runtime.SetFinalizer(C, stopJanitor[K, V])
 	return C
 }

common/cache/cache_test.go

@@ -11,48 +11,50 @@ import (
 func TestCache_Basic(t *testing.T) {
 	interval := 200 * time.Millisecond
 	ttl := 20 * time.Millisecond
-	c := New(interval)
+	c := New[string, int](interval)
 	c.Put("int", 1, ttl)
-	c.Put("string", "a", ttl)
+
+	d := New[string, string](interval)
+	d.Put("string", "a", ttl)
 
 	i := c.Get("int")
-	assert.Equal(t, i.(int), 1, "should recv 1")
+	assert.Equal(t, i, 1, "should recv 1")
 
-	s := c.Get("string")
-	assert.Equal(t, s.(string), "a", "should recv 'a'")
+	s := d.Get("string")
+	assert.Equal(t, s, "a", "should recv 'a'")
 }
 
 func TestCache_TTL(t *testing.T) {
 	interval := 200 * time.Millisecond
 	ttl := 20 * time.Millisecond
 	now := time.Now()
-	c := New(interval)
+	c := New[string, int](interval)
 	c.Put("int", 1, ttl)
 	c.Put("int2", 2, ttl)
 
 	i := c.Get("int")
 	_, expired := c.GetWithExpire("int2")
-	assert.Equal(t, i.(int), 1, "should recv 1")
+	assert.Equal(t, i, 1, "should recv 1")
 	assert.True(t, now.Before(expired))
 
 	time.Sleep(ttl * 2)
 	i = c.Get("int")
 	j, _ := c.GetWithExpire("int2")
-	assert.Nil(t, i, "should recv nil")
-	assert.Nil(t, j, "should recv nil")
+	assert.True(t, i == 0, "should recv 0")
+	assert.True(t, j == 0, "should recv 0")
 }
 
 func TestCache_AutoCleanup(t *testing.T) {
 	interval := 10 * time.Millisecond
 	ttl := 15 * time.Millisecond
-	c := New(interval)
+	c := New[string, int](interval)
 	c.Put("int", 1, ttl)
 
 	time.Sleep(ttl * 2)
 	i := c.Get("int")
 	j, _ := c.GetWithExpire("int")
-	assert.Nil(t, i, "should recv nil")
-	assert.Nil(t, j, "should recv nil")
+	assert.True(t, i == 0, "should recv 0")
+	assert.True(t, j == 0, "should recv 0")
 }
 
 func TestCache_AutoGC(t *testing.T) {
@@ -60,7 +62,7 @@ func TestCache_AutoGC(t *testing.T) {
 	go func() {
 		interval := 10 * time.Millisecond
 		ttl := 15 * time.Millisecond
-		c := New(interval)
+		c := New[string, int](interval)
 		c.Put("int", 1, ttl)
 		sign <- struct{}{}
 	}()

common/cache/lrucache.go

@@ -9,43 +9,43 @@ import (
 )
 
 // Option is part of Functional Options Pattern
-type Option func(*LruCache)
+type Option[K comparable, V any] func(*LruCache[K, V])
 
 // EvictCallback is used to get a callback when a cache entry is evicted
 type EvictCallback = func(key any, value any)
 
 // WithEvict set the evict callback
-func WithEvict(cb EvictCallback) Option {
-	return func(l *LruCache) {
+func WithEvict[K comparable, V any](cb EvictCallback) Option[K, V] {
+	return func(l *LruCache[K, V]) {
 		l.onEvict = cb
 	}
 }
 
 // WithUpdateAgeOnGet update expires when Get element
-func WithUpdateAgeOnGet() Option {
-	return func(l *LruCache) {
+func WithUpdateAgeOnGet[K comparable, V any]() Option[K, V] {
+	return func(l *LruCache[K, V]) {
 		l.updateAgeOnGet = true
 	}
 }
 
 // WithAge defined element max age (second)
-func WithAge(maxAge int64) Option {
-	return func(l *LruCache) {
+func WithAge[K comparable, V any](maxAge int64) Option[K, V] {
+	return func(l *LruCache[K, V]) {
 		l.maxAge = maxAge
 	}
 }
 
 // WithSize defined max length of LruCache
-func WithSize(maxSize int) Option {
-	return func(l *LruCache) {
+func WithSize[K comparable, V any](maxSize int) Option[K, V] {
+	return func(l *LruCache[K, V]) {
 		l.maxSize = maxSize
 	}
 }
 
 // WithStale decide whether Stale return is enabled.
 // If this feature is enabled, element will not get Evicted according to `WithAge`.
-func WithStale(stale bool) Option {
-	return func(l *LruCache) {
+func WithStale[K comparable, V any](stale bool) Option[K, V] {
+	return func(l *LruCache[K, V]) {
 		l.staleReturn = stale
 	}
 }
@@ -53,7 +53,7 @@ func WithStale(stale bool) Option {
 // LruCache is a thread-safe, in-memory lru-cache that evicts the
 // least recently used entries from memory when (if set) the entries are
 // older than maxAge (in seconds).  Use the New constructor to create one.
-type LruCache struct {
+type LruCache[K comparable, V any] struct {
 	maxAge         int64
 	maxSize        int
 	mu             sync.Mutex
@@ -65,8 +65,8 @@ type LruCache struct {
 }
 
 // NewLRUCache creates an LruCache
-func NewLRUCache(options ...Option) *LruCache {
-	lc := &LruCache{
+func NewLRUCache[K comparable, V any](options ...Option[K, V]) *LruCache[K, V] {
+	lc := &LruCache[K, V]{
 		lru:   list.New(),
 		cache: make(map[any]*list.Element),
 	}
@@ -80,12 +80,12 @@ func NewLRUCache(options ...Option) *LruCache {
 
 // Get returns the any representation of a cached response and a bool
 // set to true if the key was found.
-func (c *LruCache) Get(key any) (any, bool) {
-	entry := c.get(key)
-	if entry == nil {
-		return nil, false
+func (c *LruCache[K, V]) Get(key K) (V, bool) {
+	el := c.get(key)
+	if el == nil {
+		return getZero[V](), false
 	}
-	value := entry.value
+	value := el.value
 
 	return value, true
 }
@@ -94,17 +94,17 @@ func (c *LruCache) Get(key any) (any, bool) {
 // a time.Time Give expected expires,
 // and a bool set to true if the key was found.
 // This method will NOT check the maxAge of element and will NOT update the expires.
-func (c *LruCache) GetWithExpire(key any) (any, time.Time, bool) {
-	entry := c.get(key)
-	if entry == nil {
-		return nil, time.Time{}, false
+func (c *LruCache[K, V]) GetWithExpire(key K) (V, time.Time, bool) {
+	el := c.get(key)
+	if el == nil {
+		return getZero[V](), time.Time{}, false
 	}
 
-	return entry.value, time.Unix(entry.expires, 0), true
+	return el.value, time.Unix(el.expires, 0), true
 }
 
 // Exist returns if key exist in cache but not put item to the head of linked list
-func (c *LruCache) Exist(key any) bool {
+func (c *LruCache[K, V]) Exist(key K) bool {
 	c.mu.Lock()
 	defer c.mu.Unlock()
 
@@ -113,7 +113,7 @@ func (c *LruCache) Exist(key any) bool {
 }
 
 // Set stores the any representation of a response for a given key.
-func (c *LruCache) Set(key any, value any) {
+func (c *LruCache[K, V]) Set(key K, value V) {
 	expires := int64(0)
 	if c.maxAge > 0 {
 		expires = time.Now().Unix() + c.maxAge
@@ -123,21 +123,21 @@ func (c *LruCache) Set(key any, value any) {
 
 // SetWithExpire stores the any representation of a response for a given key and given expires.
 // The expires time will round to second.
-func (c *LruCache) SetWithExpire(key any, value any, expires time.Time) {
+func (c *LruCache[K, V]) SetWithExpire(key K, value V, expires time.Time) {
 	c.mu.Lock()
 	defer c.mu.Unlock()
 
 	if le, ok := c.cache[key]; ok {
 		c.lru.MoveToBack(le)
-		e := le.Value.(*entry)
+		e := le.Value.(*entry[K, V])
 		e.value = value
 		e.expires = expires.Unix()
 	} else {
-		e := &entry{key: key, value: value, expires: expires.Unix()}
+		e := &entry[K, V]{key: key, value: value, expires: expires.Unix()}
 		c.cache[key] = c.lru.PushBack(e)
 
 		if c.maxSize > 0 {
-			if len := c.lru.Len(); len > c.maxSize {
+			if elLen := c.lru.Len(); elLen > c.maxSize {
 				c.deleteElement(c.lru.Front())
 			}
 		}
@@ -147,7 +147,7 @@ func (c *LruCache) SetWithExpire(key any, value any, expires time.Time) {
 }
 
 // CloneTo clone and overwrite elements to another LruCache
-func (c *LruCache) CloneTo(n *LruCache) {
+func (c *LruCache[K, V]) CloneTo(n *LruCache[K, V]) {
 	c.mu.Lock()
 	defer c.mu.Unlock()
 
@@ -158,12 +158,12 @@ func (c *LruCache) CloneTo(n *LruCache) {
 	n.cache = make(map[any]*list.Element)
 
 	for e := c.lru.Front(); e != nil; e = e.Next() {
-		elm := e.Value.(*entry)
+		elm := e.Value.(*entry[K, V])
 		n.cache[elm.key] = n.lru.PushBack(elm)
 	}
 }
 
-func (c *LruCache) get(key any) *entry {
+func (c *LruCache[K, V]) get(key K) *entry[K, V] {
 	c.mu.Lock()
 	defer c.mu.Unlock()
 
@@ -172,7 +172,7 @@ func (c *LruCache) get(key any) *entry {
 		return nil
 	}
 
-	if !c.staleReturn && c.maxAge > 0 && le.Value.(*entry).expires <= time.Now().Unix() {
+	if !c.staleReturn && c.maxAge > 0 && le.Value.(*entry[K, V]).expires <= time.Now().Unix() {
 		c.deleteElement(le)
 		c.maybeDeleteOldest()
 
@@ -180,15 +180,15 @@ func (c *LruCache) get(key any) *entry {
 	}
 
 	c.lru.MoveToBack(le)
-	entry := le.Value.(*entry)
+	el := le.Value.(*entry[K, V])
 	if c.maxAge > 0 && c.updateAgeOnGet {
-		entry.expires = time.Now().Unix() + c.maxAge
+		el.expires = time.Now().Unix() + c.maxAge
 	}
-	return entry
+	return el
 }
 
 // Delete removes the value associated with a key.
-func (c *LruCache) Delete(key any) {
+func (c *LruCache[K, V]) Delete(key K) {
 	c.mu.Lock()
 
 	if le, ok := c.cache[key]; ok {
@@ -198,25 +198,25 @@ func (c *LruCache) Delete(key any) {
 	c.mu.Unlock()
 }
 
-func (c *LruCache) maybeDeleteOldest() {
+func (c *LruCache[K, V]) maybeDeleteOldest() {
 	if !c.staleReturn && c.maxAge > 0 {
 		now := time.Now().Unix()
-		for le := c.lru.Front(); le != nil && le.Value.(*entry).expires <= now; le = c.lru.Front() {
+		for le := c.lru.Front(); le != nil && le.Value.(*entry[K, V]).expires <= now; le = c.lru.Front() {
 			c.deleteElement(le)
 		}
 	}
 }
 
-func (c *LruCache) deleteElement(le *list.Element) {
+func (c *LruCache[K, V]) deleteElement(le *list.Element) {
 	c.lru.Remove(le)
-	e := le.Value.(*entry)
+	e := le.Value.(*entry[K, V])
 	delete(c.cache, e.key)
 	if c.onEvict != nil {
 		c.onEvict(e.key, e.value)
 	}
 }
 
-func (c *LruCache) Clear() error {
+func (c *LruCache[K, V]) Clear() error {
 	c.mu.Lock()
 
 	c.cache = make(map[any]*list.Element)
@@ -225,8 +225,13 @@ func (c *LruCache) Clear() error {
 	return nil
 }
 
-type entry struct {
-	key     any
-	value   any
+type entry[K comparable, V any] struct {
+	key     K
+	value   V
 	expires int64
 }
+
+func getZero[T any]() T {
+	var result T
+	return result
+}

common/cache/lrucache_test.go

@@ -19,7 +19,7 @@ var entries = []struct {
 }
 
 func TestLRUCache(t *testing.T) {
-	c := NewLRUCache()
+	c := NewLRUCache[string, string]()
 
 	for _, e := range entries {
 		c.Set(e.key, e.value)
@@ -32,7 +32,7 @@ func TestLRUCache(t *testing.T) {
 	for _, e := range entries {
 		value, ok := c.Get(e.key)
 		if assert.True(t, ok) {
-			assert.Equal(t, e.value, value.(string))
+			assert.Equal(t, e.value, value)
 		}
 	}
 
@@ -45,25 +45,25 @@ func TestLRUCache(t *testing.T) {
 }
 
 func TestLRUMaxAge(t *testing.T) {
-	c := NewLRUCache(WithAge(86400))
+	c := NewLRUCache[string, string](WithAge[string, string](86400))
 
 	now := time.Now().Unix()
 	expected := now + 86400
 
 	// Add one expired entry
 	c.Set("foo", "bar")
-	c.lru.Back().Value.(*entry).expires = now
+	c.lru.Back().Value.(*entry[string, string]).expires = now
 
 	// Reset
 	c.Set("foo", "bar")
-	e := c.lru.Back().Value.(*entry)
+	e := c.lru.Back().Value.(*entry[string, string])
 	assert.True(t, e.expires >= now)
-	c.lru.Back().Value.(*entry).expires = now
+	c.lru.Back().Value.(*entry[string, string]).expires = now
 
 	// Set a few and verify expiration times
 	for _, s := range entries {
 		c.Set(s.key, s.value)
-		e := c.lru.Back().Value.(*entry)
+		e := c.lru.Back().Value.(*entry[string, string])
 		assert.True(t, e.expires >= expected && e.expires <= expected+10)
 	}
 
@@ -77,7 +77,7 @@ func TestLRUMaxAge(t *testing.T) {
 	for _, s := range entries {
 		le, ok := c.cache[s.key]
 		if assert.True(t, ok) {
-			le.Value.(*entry).expires = now
+			le.Value.(*entry[string, string]).expires = now
 		}
 	}
 
@@ -88,22 +88,22 @@ func TestLRUMaxAge(t *testing.T) {
 }
 
 func TestLRUpdateOnGet(t *testing.T) {
-	c := NewLRUCache(WithAge(86400), WithUpdateAgeOnGet())
+	c := NewLRUCache[string, string](WithAge[string, string](86400), WithUpdateAgeOnGet[string, string]())
 
 	now := time.Now().Unix()
 	expires := now + 86400/2
 
 	// Add one expired entry
 	c.Set("foo", "bar")
-	c.lru.Back().Value.(*entry).expires = expires
+	c.lru.Back().Value.(*entry[string, string]).expires = expires
 
 	_, ok := c.Get("foo")
 	assert.True(t, ok)
-	assert.True(t, c.lru.Back().Value.(*entry).expires > expires)
+	assert.True(t, c.lru.Back().Value.(*entry[string, string]).expires > expires)
 }
 
 func TestMaxSize(t *testing.T) {
-	c := NewLRUCache(WithSize(2))
+	c := NewLRUCache[string, string](WithSize[string, string](2))
 	// Add one expired entry
 	c.Set("foo", "bar")
 	_, ok := c.Get("foo")
@@ -117,7 +117,7 @@ func TestMaxSize(t *testing.T) {
 }
 
 func TestExist(t *testing.T) {
-	c := NewLRUCache(WithSize(1))
+	c := NewLRUCache[int, int](WithSize[int, int](1))
 	c.Set(1, 2)
 	assert.True(t, c.Exist(1))
 	c.Set(2, 3)
@@ -130,7 +130,7 @@ func TestEvict(t *testing.T) {
 		temp = key.(int) + value.(int)
 	}
 
-	c := NewLRUCache(WithEvict(evict), WithSize(1))
+	c := NewLRUCache[int, int](WithEvict[int, int](evict), WithSize[int, int](1))
 	c.Set(1, 2)
 	c.Set(2, 3)
 
@@ -138,21 +138,22 @@ func TestEvict(t *testing.T) {
 }
 
 func TestSetWithExpire(t *testing.T) {
-	c := NewLRUCache(WithAge(1))
+	c := NewLRUCache[int, *struct{}](WithAge[int, *struct{}](1))
 	now := time.Now().Unix()
 
 	tenSecBefore := time.Unix(now-10, 0)
-	c.SetWithExpire(1, 2, tenSecBefore)
+	c.SetWithExpire(1, &struct{}{}, tenSecBefore)
 
 	// res is expected not to exist, and expires should be empty time.Time
 	res, expires, exist := c.GetWithExpire(1)
-	assert.Equal(t, nil, res)
+
+	assert.True(t, nil == res)
 	assert.Equal(t, time.Time{}, expires)
 	assert.Equal(t, false, exist)
 }
 
 func TestStale(t *testing.T) {
-	c := NewLRUCache(WithAge(1), WithStale(true))
+	c := NewLRUCache[int, int](WithAge[int, int](1), WithStale[int, int](true))
 	now := time.Now().Unix()
 
 	tenSecBefore := time.Unix(now-10, 0)
@@ -165,11 +166,11 @@ func TestStale(t *testing.T) {
 }
 
 func TestCloneTo(t *testing.T) {
-	o := NewLRUCache(WithSize(10))
+	o := NewLRUCache[string, int](WithSize[string, int](10))
 	o.Set("1", 1)
 	o.Set("2", 2)
 
-	n := NewLRUCache(WithSize(2))
+	n := NewLRUCache[string, int](WithSize[string, int](2))
 	n.Set("3", 3)
 	n.Set("4", 4)
 

common/queue/queue.go

@@ -5,13 +5,13 @@ import (
 )
 
 // Queue is a simple concurrent safe queue
-type Queue struct {
-	items []any
+type Queue[T any] struct {
+	items []T
 	lock  sync.RWMutex
 }
 
 // Put add the item to the queue.
-func (q *Queue) Put(items ...any) {
+func (q *Queue[T]) Put(items ...T) {
 	if len(items) == 0 {
 		return
 	}
@@ -22,9 +22,9 @@ func (q *Queue) Put(items ...any) {
 }
 
 // Pop returns the head of items.
-func (q *Queue) Pop() any {
+func (q *Queue[T]) Pop() T {
 	if len(q.items) == 0 {
-		return nil
+		return GetZero[T]()
 	}
 
 	q.lock.Lock()
@@ -35,9 +35,9 @@ func (q *Queue) Pop() any {
 }
 
 // Last returns the last of item.
-func (q *Queue) Last() any {
+func (q *Queue[T]) Last() T {
 	if len(q.items) == 0 {
-		return nil
+		return GetZero[T]()
 	}
 
 	q.lock.RLock()
@@ -47,8 +47,8 @@ func (q *Queue) Last() any {
 }
 
 // Copy get the copy of queue.
-func (q *Queue) Copy() []any {
-	items := []any{}
+func (q *Queue[T]) Copy() []T {
+	items := []T{}
 	q.lock.RLock()
 	items = append(items, q.items...)
 	q.lock.RUnlock()
@@ -56,7 +56,7 @@ func (q *Queue) Copy() []any {
 }
 
 // Len returns the number of items in this queue.
-func (q *Queue) Len() int64 {
+func (q *Queue[T]) Len() int64 {
 	q.lock.Lock()
 	defer q.lock.Unlock()
 
@@ -64,8 +64,13 @@ func (q *Queue) Len() int64 {
 }
 
 // New is a constructor for a new concurrent safe queue.
-func New(hint int64) *Queue {
-	return &Queue{
-		items: make([]any, 0, hint),
+func New[T any](hint int64) *Queue[T] {
+	return &Queue[T]{
+		items: make([]T, 0, hint),
 	}
 }
+
+func GetZero[T any]() T {
+	var result T
+	return result
+}

common/utils/range.go

@@ -0,0 +1,44 @@
+package utils
+
+import (
+	"golang.org/x/exp/constraints"
+)
+
+type Range[T constraints.Ordered] struct {
+	start T
+	end   T
+}
+
+func NewRange[T constraints.Ordered](start, end T) *Range[T] {
+	if start > end {
+		return &Range[T]{
+			start: end,
+			end:   start,
+		}
+	}
+
+	return &Range[T]{
+		start: start,
+		end:   end,
+	}
+}
+
+func (r *Range[T]) Contains(t T) bool {
+	return t >= r.start && t <= r.end
+}
+
+func (r *Range[T]) LeftContains(t T) bool {
+	return t >= r.start && t < r.end
+}
+
+func (r *Range[T]) RightContains(t T) bool {
+	return t > r.start && t <= r.end
+}
+
+func (r *Range[T]) Start() T {
+	return r.start
+}
+
+func (r *Range[T]) End() T {
+	return r.end
+}

component/fakeip/cachefile.go

@@ -1,7 +1,7 @@
 package fakeip
 
 import (
-	"net"
+	"net/netip"
 
 	"github.com/Dreamacro/clash/component/profile/cachefile"
 )
@@ -11,22 +11,27 @@ type cachefileStore struct {
 }
 
 // GetByHost implements store.GetByHost
-func (c *cachefileStore) GetByHost(host string) (net.IP, bool) {
+func (c *cachefileStore) GetByHost(host string) (netip.Addr, bool) {
 	elm := c.cache.GetFakeip([]byte(host))
 	if elm == nil {
-		return nil, false
+		return netip.Addr{}, false
+	}
+
+	if len(elm) == 4 {
+		return netip.AddrFrom4(*(*[4]byte)(elm)), true
+	} else {
+		return netip.AddrFrom16(*(*[16]byte)(elm)), true
 	}
-	return net.IP(elm), true
 }
 
 // PutByHost implements store.PutByHost
-func (c *cachefileStore) PutByHost(host string, ip net.IP) {
-	c.cache.PutFakeip([]byte(host), ip)
+func (c *cachefileStore) PutByHost(host string, ip netip.Addr) {
+	c.cache.PutFakeip([]byte(host), ip.AsSlice())
 }
 
 // GetByIP implements store.GetByIP
-func (c *cachefileStore) GetByIP(ip net.IP) (string, bool) {
-	elm := c.cache.GetFakeip(ip.To4())
+func (c *cachefileStore) GetByIP(ip netip.Addr) (string, bool) {
+	elm := c.cache.GetFakeip(ip.AsSlice())
 	if elm == nil {
 		return "", false
 	}
@@ -34,18 +39,18 @@ func (c *cachefileStore) GetByIP(ip net.IP) (string, bool) {
 }
 
 // PutByIP implements store.PutByIP
-func (c *cachefileStore) PutByIP(ip net.IP, host string) {
-	c.cache.PutFakeip(ip.To4(), []byte(host))
+func (c *cachefileStore) PutByIP(ip netip.Addr, host string) {
+	c.cache.PutFakeip(ip.AsSlice(), []byte(host))
 }
 
 // DelByIP implements store.DelByIP
-func (c *cachefileStore) DelByIP(ip net.IP) {
-	ip = ip.To4()
-	c.cache.DelFakeipPair(ip, c.cache.GetFakeip(ip.To4()))
+func (c *cachefileStore) DelByIP(ip netip.Addr) {
+	addr := ip.AsSlice()
+	c.cache.DelFakeipPair(addr, c.cache.GetFakeip(addr))
 }
 
 // Exist implements store.Exist
-func (c *cachefileStore) Exist(ip net.IP) bool {
+func (c *cachefileStore) Exist(ip netip.Addr) bool {
 	_, exist := c.GetByIP(ip)
 	return exist
 }

component/fakeip/memory.go

@@ -1,40 +1,37 @@
 package fakeip
 
 import (
-	"net"
+	"net/netip"
 
 	"github.com/Dreamacro/clash/common/cache"
 )
 
 type memoryStore struct {
-	cache *cache.LruCache
+	cacheIP   *cache.LruCache[string, netip.Addr]
+	cacheHost *cache.LruCache[netip.Addr, string]
 }
 
 // GetByHost implements store.GetByHost
-func (m *memoryStore) GetByHost(host string) (net.IP, bool) {
-	if elm, exist := m.cache.Get(host); exist {
-		ip := elm.(net.IP)
-
+func (m *memoryStore) GetByHost(host string) (netip.Addr, bool) {
+	if ip, exist := m.cacheIP.Get(host); exist {
 		// ensure ip --> host on head of linked list
-		m.cache.Get(ipToUint(ip.To4()))
+		m.cacheHost.Get(ip)
 		return ip, true
 	}
 
-	return nil, false
+	return netip.Addr{}, false
 }
 
 // PutByHost implements store.PutByHost
-func (m *memoryStore) PutByHost(host string, ip net.IP) {
-	m.cache.Set(host, ip)
+func (m *memoryStore) PutByHost(host string, ip netip.Addr) {
+	m.cacheIP.Set(host, ip)
 }
 
 // GetByIP implements store.GetByIP
-func (m *memoryStore) GetByIP(ip net.IP) (string, bool) {
-	if elm, exist := m.cache.Get(ipToUint(ip.To4())); exist {
-		host := elm.(string)
-
+func (m *memoryStore) GetByIP(ip netip.Addr) (string, bool) {
+	if host, exist := m.cacheHost.Get(ip); exist {
 		// ensure host --> ip on head of linked list
-		m.cache.Get(host)
+		m.cacheIP.Get(host)
 		return host, true
 	}
 
@@ -42,33 +39,41 @@ func (m *memoryStore) GetByIP(ip net.IP) (string, bool) {
 }
 
 // PutByIP implements store.PutByIP
-func (m *memoryStore) PutByIP(ip net.IP, host string) {
-	m.cache.Set(ipToUint(ip.To4()), host)
+func (m *memoryStore) PutByIP(ip netip.Addr, host string) {
+	m.cacheHost.Set(ip, host)
 }
 
 // DelByIP implements store.DelByIP
-func (m *memoryStore) DelByIP(ip net.IP) {
-	ipNum := ipToUint(ip.To4())
-	if elm, exist := m.cache.Get(ipNum); exist {
-		m.cache.Delete(elm.(string))
+func (m *memoryStore) DelByIP(ip netip.Addr) {
+	if host, exist := m.cacheHost.Get(ip); exist {
+		m.cacheIP.Delete(host)
 	}
-	m.cache.Delete(ipNum)
+	m.cacheHost.Delete(ip)
 }
 
 // Exist implements store.Exist
-func (m *memoryStore) Exist(ip net.IP) bool {
-	return m.cache.Exist(ipToUint(ip.To4()))
+func (m *memoryStore) Exist(ip netip.Addr) bool {
+	return m.cacheHost.Exist(ip)
 }
 
 // CloneTo implements store.CloneTo
 // only for memoryStore to memoryStore
 func (m *memoryStore) CloneTo(store store) {
 	if ms, ok := store.(*memoryStore); ok {
-		m.cache.CloneTo(ms.cache)
+		m.cacheIP.CloneTo(ms.cacheIP)
+		m.cacheHost.CloneTo(ms.cacheHost)
 	}
 }
 
 // FlushFakeIP implements store.FlushFakeIP
 func (m *memoryStore) FlushFakeIP() error {
-	return m.cache.Clear()
+	_ = m.cacheIP.Clear()
+	return m.cacheHost.Clear()
+}
+
+func newMemoryStore(size int) *memoryStore {
+	return &memoryStore{
+		cacheIP:   cache.NewLRUCache[string, netip.Addr](cache.WithSize[string, netip.Addr](size)),
+		cacheHost: cache.NewLRUCache[netip.Addr, string](cache.WithSize[netip.Addr, string](size)),
+	}
 }

component/fakeip/pool.go

@@ -1,41 +1,47 @@
 package fakeip
 
 import (
+	"encoding/binary"
 	"errors"
-	"net"
+	"math/bits"
+	"net/netip"
 	"sync"
 
-	"github.com/Dreamacro/clash/common/cache"
 	"github.com/Dreamacro/clash/component/profile/cachefile"
 	"github.com/Dreamacro/clash/component/trie"
 )
 
+type uint128 struct {
+	hi uint64
+	lo uint64
+}
+
 type store interface {
-	GetByHost(host string) (net.IP, bool)
-	PutByHost(host string, ip net.IP)
-	GetByIP(ip net.IP) (string, bool)
-	PutByIP(ip net.IP, host string)
-	DelByIP(ip net.IP)
-	Exist(ip net.IP) bool
+	GetByHost(host string) (netip.Addr, bool)
+	PutByHost(host string, ip netip.Addr)
+	GetByIP(ip netip.Addr) (string, bool)
+	PutByIP(ip netip.Addr, host string)
+	DelByIP(ip netip.Addr)
+	Exist(ip netip.Addr) bool
 	CloneTo(store)
 	FlushFakeIP() error
 }
 
 // Pool is a implementation about fake ip generator without storage
 type Pool struct {
-	max       uint32
-	min       uint32
-	gateway   uint32
-	broadcast uint32
-	offset    uint32
+	gateway netip.Addr
+	first   netip.Addr
+	last    netip.Addr
+	offset  netip.Addr
+	cycle   bool
 	mux     sync.Mutex
-	host      *trie.DomainTrie
-	ipnet     *net.IPNet
+	host    *trie.DomainTrie[bool]
+	ipnet   *netip.Prefix
 	store   store
 }
 
 // Lookup return a fake ip with host
-func (p *Pool) Lookup(host string) net.IP {
+func (p *Pool) Lookup(host string) netip.Addr {
 	p.mux.Lock()
 	defer p.mux.Unlock()
 	if ip, exist := p.store.GetByHost(host); exist {
@@ -48,14 +54,10 @@ func (p *Pool) Lookup(host string) net.IP {
 }
 
 // LookBack return host with the fake ip
-func (p *Pool) LookBack(ip net.IP) (string, bool) {
+func (p *Pool) LookBack(ip netip.Addr) (string, bool) {
 	p.mux.Lock()
 	defer p.mux.Unlock()
 
-	if ip = ip.To4(); ip == nil {
-		return "", false
-	}
-
 	return p.store.GetByIP(ip)
 }
 
@@ -68,29 +70,25 @@ func (p *Pool) ShouldSkipped(domain string) bool {
 }
 
 // Exist returns if given ip exists in fake-ip pool
-func (p *Pool) Exist(ip net.IP) bool {
+func (p *Pool) Exist(ip netip.Addr) bool {
 	p.mux.Lock()
 	defer p.mux.Unlock()
 
-	if ip = ip.To4(); ip == nil {
-		return false
-	}
-
 	return p.store.Exist(ip)
 }
 
 // Gateway return gateway ip
-func (p *Pool) Gateway() net.IP {
-	return uintToIP(p.gateway)
+func (p *Pool) Gateway() netip.Addr {
+	return p.gateway
 }
 
-// Broadcast return broadcast ip
-func (p *Pool) Broadcast() net.IP {
-	return uintToIP(p.broadcast)
+// Broadcast return the last ip
+func (p *Pool) Broadcast() netip.Addr {
+	return p.last
 }
 
 // IPNet return raw ipnet
-func (p *Pool) IPNet() *net.IPNet {
+func (p *Pool) IPNet() *netip.Prefix {
 	return p.ipnet
 }
 
@@ -99,47 +97,36 @@ func (p *Pool) CloneFrom(o *Pool) {
 	o.store.CloneTo(p.store)
 }
 
-func (p *Pool) get(host string) net.IP {
-	current := p.offset
+func (p *Pool) get(host string) netip.Addr {
 	for {
-		p.offset = (p.offset + 1) % (p.max - p.min)
-		// Avoid infinite loops
-		if p.offset == current {
-			p.offset = (p.offset + 1) % (p.max - p.min)
-			ip := uintToIP(p.min + p.offset - 1)
-			p.store.DelByIP(ip)
+		p.offset = p.offset.Next()
+
+		if !p.offset.Less(p.last) {
+			p.cycle = true
+			p.offset = p.first
+		}
+
+		if p.cycle {
+			p.store.DelByIP(p.offset)
 			break
 		}
 
-		ip := uintToIP(p.min + p.offset - 1)
-		if !p.store.Exist(ip) {
+		if !p.store.Exist(p.offset) {
 			break
 		}
 	}
-	ip := uintToIP(p.min + p.offset - 1)
-	p.store.PutByIP(ip, host)
-	return ip
+
+	p.store.PutByIP(p.offset, host)
+	return p.offset
 }
 
 func (p *Pool) FlushFakeIP() error {
 	return p.store.FlushFakeIP()
 }
 
-func ipToUint(ip net.IP) uint32 {
-	v := uint32(ip[0]) << 24
-	v += uint32(ip[1]) << 16
-	v += uint32(ip[2]) << 8
-	v += uint32(ip[3])
-	return v
-}
-
-func uintToIP(v uint32) net.IP {
-	return net.IP{byte(v >> 24), byte(v >> 16), byte(v >> 8), byte(v)}
-}
-
 type Options struct {
-	IPNet *net.IPNet
-	Host  *trie.DomainTrie
+	IPNet *netip.Prefix
+	Host  *trie.DomainTrie[bool]
 
 	// Size sets the maximum number of entries in memory
 	// and does not work if Persistence is true
@@ -152,21 +139,23 @@ type Options struct {
 
 // New return Pool instance
 func New(options Options) (*Pool, error) {
-	min := ipToUint(options.IPNet.IP) + 3
+	var (
+		hostAddr = options.IPNet.Masked().Addr()
+		gateway  = hostAddr.Next()
+		first    = gateway.Next().Next()
+		last     = add(hostAddr, 1<<uint64(hostAddr.BitLen()-options.IPNet.Bits())-1)
+	)
 
-	ones, bits := options.IPNet.Mask.Size()
-	total := 1<<uint(bits-ones) - 4
-
-	if total <= 0 {
+	if !options.IPNet.IsValid() || !first.Less(last) || !options.IPNet.Contains(last) {
 		return nil, errors.New("ipnet don't have valid ip")
 	}
 
-	max := min + uint32(total) - 1
 	pool := &Pool{
-		min:       min,
-		max:       max,
-		gateway:   min - 2,
-		broadcast: max + 1,
+		gateway: gateway,
+		first:   first,
+		last:    last,
+		offset:  first.Prev(),
+		cycle:   false,
 		host:    options.Host,
 		ipnet:   options.IPNet,
 	}
@@ -175,10 +164,34 @@ func New(options Options) (*Pool, error) {
 			cache: cachefile.Cache(),
 		}
 	} else {
-		pool.store = &memoryStore{
-			cache: cache.NewLRUCache(cache.WithSize(options.Size * 2)),
-		}
+		pool.store = newMemoryStore(options.Size)
 	}
 
 	return pool, nil
 }
+
+// add returns addr + n.
+func add(addr netip.Addr, n uint64) netip.Addr {
+	buf := addr.As16()
+
+	u := uint128{
+		binary.BigEndian.Uint64(buf[:8]),
+		binary.BigEndian.Uint64(buf[8:]),
+	}
+
+	lo, carry := bits.Add64(u.lo, n, 0)
+
+	u.hi = u.hi + carry
+	u.lo = lo
+
+	binary.BigEndian.PutUint64(buf[:8], u.hi)
+	binary.BigEndian.PutUint64(buf[8:], u.lo)
+
+	a := netip.AddrFrom16(buf)
+
+	if addr.Is4() {
+		return a.Unmap()
+	}
+
+	return a
+}

component/fakeip/pool_test.go

@@ -2,7 +2,7 @@ package fakeip
 
 import (
 	"fmt"
-	"net"
+	"net/netip"
 	"os"
 	"testing"
 	"time"
@@ -49,9 +49,9 @@ func createCachefileStore(options Options) (*Pool, string, error) {
 }
 
 func TestPool_Basic(t *testing.T) {
-	_, ipnet, _ := net.ParseCIDR("192.168.0.0/28")
+	ipnet := netip.MustParsePrefix("192.168.0.0/28")
 	pools, tempfile, err := createPools(Options{
-		IPNet: ipnet,
+		IPNet: &ipnet,
 		Size:  10,
 	})
 	assert.Nil(t, err)
@@ -62,24 +62,52 @@ func TestPool_Basic(t *testing.T) {
 		last := pool.Lookup("bar.com")
 		bar, exist := pool.LookBack(last)
 
-		assert.True(t, first.Equal(net.IP{192, 168, 0, 3}))
-		assert.Equal(t, pool.Lookup("foo.com"), net.IP{192, 168, 0, 3})
-		assert.True(t, last.Equal(net.IP{192, 168, 0, 4}))
+		assert.True(t, first == netip.AddrFrom4([4]byte{192, 168, 0, 3}))
+		assert.True(t, pool.Lookup("foo.com") == netip.AddrFrom4([4]byte{192, 168, 0, 3}))
+		assert.True(t, last == netip.AddrFrom4([4]byte{192, 168, 0, 4}))
 		assert.True(t, exist)
 		assert.Equal(t, bar, "bar.com")
-		assert.Equal(t, pool.Gateway(), net.IP{192, 168, 0, 1})
-		assert.Equal(t, pool.Broadcast(), net.IP{192, 168, 0, 15})
+		assert.True(t, pool.Gateway() == netip.AddrFrom4([4]byte{192, 168, 0, 1}))
+		assert.True(t, pool.Broadcast() == netip.AddrFrom4([4]byte{192, 168, 0, 15}))
 		assert.Equal(t, pool.IPNet().String(), ipnet.String())
-		assert.True(t, pool.Exist(net.IP{192, 168, 0, 4}))
-		assert.False(t, pool.Exist(net.IP{192, 168, 0, 5}))
-		assert.False(t, pool.Exist(net.ParseIP("::1")))
+		assert.True(t, pool.Exist(netip.AddrFrom4([4]byte{192, 168, 0, 4})))
+		assert.False(t, pool.Exist(netip.AddrFrom4([4]byte{192, 168, 0, 5})))
+		assert.False(t, pool.Exist(netip.MustParseAddr("::1")))
+	}
+}
+
+func TestPool_BasicV6(t *testing.T) {
+	ipnet := netip.MustParsePrefix("2001:4860:4860::8888/118")
+	pools, tempfile, err := createPools(Options{
+		IPNet: &ipnet,
+		Size:  10,
+	})
+	assert.Nil(t, err)
+	defer os.Remove(tempfile)
+
+	for _, pool := range pools {
+		first := pool.Lookup("foo.com")
+		last := pool.Lookup("bar.com")
+		bar, exist := pool.LookBack(last)
+
+		assert.True(t, first == netip.MustParseAddr("2001:4860:4860:0000:0000:0000:0000:8803"))
+		assert.True(t, pool.Lookup("foo.com") == netip.MustParseAddr("2001:4860:4860:0000:0000:0000:0000:8803"))
+		assert.True(t, last == netip.MustParseAddr("2001:4860:4860:0000:0000:0000:0000:8804"))
+		assert.True(t, exist)
+		assert.Equal(t, bar, "bar.com")
+		assert.True(t, pool.Gateway() == netip.MustParseAddr("2001:4860:4860:0000:0000:0000:0000:8801"))
+		assert.True(t, pool.Broadcast() == netip.MustParseAddr("2001:4860:4860:0000:0000:0000:0000:8bff"))
+		assert.Equal(t, pool.IPNet().String(), ipnet.String())
+		assert.True(t, pool.Exist(netip.MustParseAddr("2001:4860:4860:0000:0000:0000:0000:8804")))
+		assert.False(t, pool.Exist(netip.MustParseAddr("2001:4860:4860:0000:0000:0000:0000:8805")))
+		assert.False(t, pool.Exist(netip.MustParseAddr("127.0.0.1")))
 	}
 }
 
 func TestPool_CycleUsed(t *testing.T) {
-	_, ipnet, _ := net.ParseCIDR("192.168.0.16/28")
+	ipnet := netip.MustParsePrefix("192.168.0.16/28")
 	pools, tempfile, err := createPools(Options{
-		IPNet: ipnet,
+		IPNet: &ipnet,
 		Size:  10,
 	})
 	assert.Nil(t, err)
@@ -88,22 +116,22 @@ func TestPool_CycleUsed(t *testing.T) {
 	for _, pool := range pools {
 		foo := pool.Lookup("foo.com")
 		bar := pool.Lookup("bar.com")
-		for i := 0; i < 9; i++ {
+		for i := 0; i < 10; i++ {
 			pool.Lookup(fmt.Sprintf("%d.com", i))
 		}
 		baz := pool.Lookup("baz.com")
 		next := pool.Lookup("foo.com")
-		assert.True(t, foo.Equal(baz))
-		assert.True(t, next.Equal(bar))
+		assert.True(t, foo == baz)
+		assert.True(t, next == bar)
 	}
 }
 
 func TestPool_Skip(t *testing.T) {
-	_, ipnet, _ := net.ParseCIDR("192.168.0.1/29")
-	tree := trie.New()
-	tree.Insert("example.com", tree)
+	ipnet := netip.MustParsePrefix("192.168.0.1/29")
+	tree := trie.New[bool]()
+	tree.Insert("example.com", true)
 	pools, tempfile, err := createPools(Options{
-		IPNet: ipnet,
+		IPNet: &ipnet,
 		Size:  10,
 		Host:  tree,
 	})
@@ -117,9 +145,9 @@ func TestPool_Skip(t *testing.T) {
 }
 
 func TestPool_MaxCacheSize(t *testing.T) {
-	_, ipnet, _ := net.ParseCIDR("192.168.0.1/24")
+	ipnet := netip.MustParsePrefix("192.168.0.1/24")
 	pool, _ := New(Options{
-		IPNet: ipnet,
+		IPNet: &ipnet,
 		Size:  2,
 	})
 
@@ -128,13 +156,13 @@ func TestPool_MaxCacheSize(t *testing.T) {
 	pool.Lookup("baz.com")
 	next := pool.Lookup("foo.com")
 
-	assert.False(t, first.Equal(next))
+	assert.False(t, first == next)
 }
 
 func TestPool_DoubleMapping(t *testing.T) {
-	_, ipnet, _ := net.ParseCIDR("192.168.0.1/24")
+	ipnet := netip.MustParsePrefix("192.168.0.1/24")
 	pool, _ := New(Options{
-		IPNet: ipnet,
+		IPNet: &ipnet,
 		Size:  2,
 	})
 
@@ -158,23 +186,23 @@ func TestPool_DoubleMapping(t *testing.T) {
 	assert.False(t, bazExist)
 	assert.True(t, barExist)
 
-	assert.False(t, bazIP.Equal(newBazIP))
+	assert.False(t, bazIP == newBazIP)
 }
 
 func TestPool_Clone(t *testing.T) {
-	_, ipnet, _ := net.ParseCIDR("192.168.0.1/24")
+	ipnet := netip.MustParsePrefix("192.168.0.1/24")
 	pool, _ := New(Options{
-		IPNet: ipnet,
+		IPNet: &ipnet,
 		Size:  2,
 	})
 
 	first := pool.Lookup("foo.com")
 	last := pool.Lookup("bar.com")
-	assert.True(t, first.Equal(net.IP{192, 168, 0, 3}))
-	assert.True(t, last.Equal(net.IP{192, 168, 0, 4}))
+	assert.True(t, first == netip.AddrFrom4([4]byte{192, 168, 0, 3}))
+	assert.True(t, last == netip.AddrFrom4([4]byte{192, 168, 0, 4}))
 
 	newPool, _ := New(Options{
-		IPNet: ipnet,
+		IPNet: &ipnet,
 		Size:  2,
 	})
 	newPool.CloneFrom(pool)
@@ -185,9 +213,9 @@ func TestPool_Clone(t *testing.T) {
 }
 
 func TestPool_Error(t *testing.T) {
-	_, ipnet, _ := net.ParseCIDR("192.168.0.1/31")
+	ipnet := netip.MustParsePrefix("192.168.0.1/31")
 	_, err := New(Options{
-		IPNet: ipnet,
+		IPNet: &ipnet,
 		Size:  10,
 	})
 
@@ -195,9 +223,9 @@ func TestPool_Error(t *testing.T) {
 }
 
 func TestPool_FlushFileCache(t *testing.T) {
-	_, ipnet, _ := net.ParseCIDR("192.168.0.1/28")
+	ipnet := netip.MustParsePrefix("192.168.0.1/28")
 	pools, tempfile, err := createPools(Options{
-		IPNet: ipnet,
+		IPNet: &ipnet,
 		Size:  10,
 	})
 	assert.Nil(t, err)
@@ -216,18 +244,18 @@ func TestPool_FlushFileCache(t *testing.T) {
 		next := pool.Lookup("baz.com")
 		nero := pool.Lookup("foo.com")
 
-		assert.Equal(t, foo, fox)
-		assert.NotEqual(t, foo, baz)
-		assert.Equal(t, bar, bax)
-		assert.NotEqual(t, bar, next)
-		assert.Equal(t, baz, nero)
+		assert.True(t, foo == fox)
+		assert.False(t, foo == baz)
+		assert.True(t, bar == bax)
+		assert.False(t, bar == next)
+		assert.True(t, baz == nero)
 	}
 }
 
 func TestPool_FlushMemoryCache(t *testing.T) {
-	_, ipnet, _ := net.ParseCIDR("192.168.0.1/28")
+	ipnet := netip.MustParsePrefix("192.168.0.1/28")
 	pool, _ := New(Options{
-		IPNet: ipnet,
+		IPNet: &ipnet,
 		Size:  10,
 	})
 
@@ -243,9 +271,9 @@ func TestPool_FlushMemoryCache(t *testing.T) {
 	next := pool.Lookup("baz.com")
 	nero := pool.Lookup("foo.com")
 
-	assert.Equal(t, foo, fox)
-	assert.NotEqual(t, foo, baz)
-	assert.Equal(t, bar, bax)
-	assert.NotEqual(t, bar, next)
-	assert.Equal(t, baz, nero)
+	assert.True(t, foo == fox)
+	assert.False(t, foo == baz)
+	assert.True(t, bar == bax)
+	assert.False(t, bar == next)
+	assert.True(t, baz == nero)
 }

component/geodata/utils.go

@@ -15,6 +15,9 @@ func LoaderName() string {
 }
 
 func SetLoader(newLoader string) {
+	if newLoader == "memc" {
+		newLoader = "memconservative"
+	}
 	geoLoaderName = newLoader
 }
 

component/process/process.go

@@ -3,6 +3,7 @@ package process
 import (
 	"errors"
 	"net"
+	"runtime"
 
 	C "github.com/Dreamacro/clash/constant"
 )
@@ -23,6 +24,9 @@ func FindProcessName(network string, srcIP net.IP, srcPort int) (string, error)
 }
 
 func ShouldFindProcess(metadata *C.Metadata) bool {
+	if runtime.GOOS == "android" {
+		return false
+	}
 	if metadata.Process != "" {
 		return false
 	}

component/process/process_android.go

@@ -1,230 +0,0 @@
-package process
-
-import (
-	"bytes"
-	"encoding/binary"
-	"fmt"
-	"net"
-	"os"
-	"path"
-	"path/filepath"
-	"strings"
-	"syscall"
-	"unicode"
-	"unsafe"
-
-	"github.com/Dreamacro/clash/common/pool"
-)
-
-// from https://github.com/vishvananda/netlink/blob/bca67dfc8220b44ef582c9da4e9172bf1c9ec973/nl/nl_linux.go#L52-L62
-var nativeEndian = func() binary.ByteOrder {
-	var x uint32 = 0x01020304
-	if *(*byte)(unsafe.Pointer(&x)) == 0x01 {
-		return binary.BigEndian
-	}
-
-	return binary.LittleEndian
-}()
-
-const (
-	sizeOfSocketDiagRequest = syscall.SizeofNlMsghdr + 8 + 48
-	socketDiagByFamily      = 20
-	pathProc                = "/proc"
-)
-
-func findProcessName(network string, ip net.IP, srcPort int) (string, error) {
-	inode, uid, err := resolveSocketByNetlink(network, ip, srcPort)
-	if err != nil {
-		return "", err
-	}
-
-	return resolveProcessNameByProcSearch(inode, uid)
-}
-
-func resolveSocketByNetlink(network string, ip net.IP, srcPort int) (int32, int32, error) {
-	var family byte
-	var protocol byte
-
-	switch network {
-	case TCP:
-		protocol = syscall.IPPROTO_TCP
-	case UDP:
-		protocol = syscall.IPPROTO_UDP
-	default:
-		return 0, 0, ErrInvalidNetwork
-	}
-
-	if ip.To4() != nil {
-		family = syscall.AF_INET
-	} else {
-		family = syscall.AF_INET6
-	}
-
-	req := packSocketDiagRequest(family, protocol, ip, uint16(srcPort))
-
-	socket, err := syscall.Socket(syscall.AF_NETLINK, syscall.SOCK_DGRAM, syscall.NETLINK_INET_DIAG)
-	if err != nil {
-		return 0, 0, fmt.Errorf("dial netlink: %w", err)
-	}
-	defer syscall.Close(socket)
-
-	syscall.SetsockoptTimeval(socket, syscall.SOL_SOCKET, syscall.SO_SNDTIMEO, &syscall.Timeval{Usec: 100})
-	syscall.SetsockoptTimeval(socket, syscall.SOL_SOCKET, syscall.SO_RCVTIMEO, &syscall.Timeval{Usec: 100})
-
-	if err := syscall.Connect(socket, &syscall.SockaddrNetlink{
-		Family: syscall.AF_NETLINK,
-		Pad:    0,
-		Pid:    0,
-		Groups: 0,
-	}); err != nil {
-		return 0, 0, err
-	}
-
-	if _, err := syscall.Write(socket, req); err != nil {
-		return 0, 0, fmt.Errorf("write request: %w", err)
-	}
-
-	rb := pool.Get(pool.RelayBufferSize)
-	defer pool.Put(rb)
-
-	n, err := syscall.Read(socket, rb)
-	if err != nil {
-		return 0, 0, fmt.Errorf("read response: %w", err)
-	}
-
-	messages, err := syscall.ParseNetlinkMessage(rb[:n])
-	if err != nil {
-		return 0, 0, fmt.Errorf("parse netlink message: %w", err)
-	} else if len(messages) == 0 {
-		return 0, 0, fmt.Errorf("unexcepted netlink response")
-	}
-
-	message := messages[0]
-	if message.Header.Type&syscall.NLMSG_ERROR != 0 {
-		return 0, 0, fmt.Errorf("netlink message: NLMSG_ERROR")
-	}
-
-	uid, inode := unpackSocketDiagResponse(&messages[0])
-	if uid < 0 || inode < 0 {
-		return 0, 0, fmt.Errorf("invalid uid(%d) or inode(%d)", uid, inode)
-	}
-
-	return uid, inode, nil
-}
-
-func packSocketDiagRequest(family, protocol byte, source net.IP, sourcePort uint16) []byte {
-	s := make([]byte, 16)
-
-	if v4 := source.To4(); v4 != nil {
-		copy(s, v4)
-	} else {
-		copy(s, source)
-	}
-
-	buf := make([]byte, sizeOfSocketDiagRequest)
-
-	nativeEndian.PutUint32(buf[0:4], sizeOfSocketDiagRequest)
-	nativeEndian.PutUint16(buf[4:6], socketDiagByFamily)
-	nativeEndian.PutUint16(buf[6:8], syscall.NLM_F_REQUEST|syscall.NLM_F_DUMP)
-	nativeEndian.PutUint32(buf[8:12], 0)
-	nativeEndian.PutUint32(buf[12:16], 0)
-
-	buf[16] = family
-	buf[17] = protocol
-	buf[18] = 0
-	buf[19] = 0
-	nativeEndian.PutUint32(buf[20:24], 0xFFFFFFFF)
-
-	binary.BigEndian.PutUint16(buf[24:26], sourcePort)
-	binary.BigEndian.PutUint16(buf[26:28], 0)
-
-	copy(buf[28:44], s)
-	copy(buf[44:60], net.IPv6zero)
-
-	nativeEndian.PutUint32(buf[60:64], 0)
-	nativeEndian.PutUint64(buf[64:72], 0xFFFFFFFFFFFFFFFF)
-
-	return buf
-}
-
-func unpackSocketDiagResponse(msg *syscall.NetlinkMessage) (inode, uid int32) {
-	if len(msg.Data) < 72 {
-		return 0, 0
-	}
-
-	data := msg.Data
-
-	uid = int32(nativeEndian.Uint32(data[64:68]))
-	inode = int32(nativeEndian.Uint32(data[68:72]))
-
-	return
-}
-
-func resolveProcessNameByProcSearch(inode, uid int32) (string, error) {
-	files, err := os.ReadDir(pathProc)
-	if err != nil {
-		return "", err
-	}
-
-	buffer := make([]byte, syscall.PathMax)
-	socket := []byte(fmt.Sprintf("socket:[%d]", inode))
-
-	for _, f := range files {
-		if !f.IsDir() || !isPid(f.Name()) {
-			continue
-		}
-
-		info, err := f.Info()
-		if err != nil {
-			return "", err
-		}
-		if info.Sys().(*syscall.Stat_t).Uid != uint32(uid) {
-			continue
-		}
-
-		processPath := path.Join(pathProc, f.Name())
-		fdPath := path.Join(processPath, "fd")
-
-		fds, err := os.ReadDir(fdPath)
-		if err != nil {
-			continue
-		}
-
-		for _, fd := range fds {
-			n, err := syscall.Readlink(path.Join(fdPath, fd.Name()), buffer)
-			if err != nil {
-				continue
-			}
-
-			if bytes.Equal(buffer[:n], socket) {
-				cmdline, err := os.ReadFile(path.Join(processPath, "cmdline"))
-				if err != nil {
-					return "", err
-				}
-
-				return splitCmdline(cmdline), nil
-			}
-		}
-	}
-
-	return "", fmt.Errorf("process of uid(%d),inode(%d) not found", uid, inode)
-}
-
-func splitCmdline(cmdline []byte) string {
-	cmdline = bytes.Trim(cmdline, " ")
-
-	idx := bytes.IndexFunc(cmdline, func(r rune) bool {
-		return unicode.IsControl(r) || unicode.IsSpace(r)
-	})
-
-	if idx == -1 {
-		return filepath.Base(string(cmdline))
-	}
-	return filepath.Base(string(cmdline[:idx]))
-}
-
-func isPid(s string) bool {
-	return strings.IndexFunc(s, func(r rune) bool {
-		return !unicode.IsDigit(r)
-	}) == -1
-}

component/process/process_linux.go

@@ -1,5 +1,3 @@
-//go:build !android
-
 package process
 
 import (

component/resolver/enhancer.go

@@ -14,6 +14,7 @@ type Enhancer interface {
 	IsExistFakeIP(net.IP) bool
 	FindHostByIP(net.IP) (string, bool)
 	FlushFakeIP() error
+	InsertHostByIP(net.IP, string)
 }
 
 func FakeIPEnabled() bool {
@@ -56,6 +57,12 @@ func IsExistFakeIP(ip net.IP) bool {
 	return false
 }
 
+func InsertHostByIP(ip net.IP, host string) {
+	if mapper := DefaultHostMapper; mapper != nil {
+		mapper.InsertHostByIP(ip, host)
+	}
+}
+
 func FindHostByIP(ip net.IP) (string, bool) {
 	if mapper := DefaultHostMapper; mapper != nil {
 		return mapper.FindHostByIP(ip)

component/resolver/resolver.go

@@ -5,6 +5,7 @@ import (
 	"errors"
 	"math/rand"
 	"net"
+	"net/netip"
 	"strings"
 	"time"
 
@@ -23,7 +24,7 @@ var (
 	DisableIPv6 = true
 
 	// DefaultHosts aim to resolve hosts
-	DefaultHosts = trie.New()
+	DefaultHosts = trie.New[netip.Addr]()
 
 	// DefaultDNSTimeout defined the default dns request timeout
 	DefaultDNSTimeout = time.Second * 5
@@ -48,8 +49,8 @@ func ResolveIPv4(host string) (net.IP, error) {
 
 func ResolveIPv4WithResolver(host string, r Resolver) (net.IP, error) {
 	if node := DefaultHosts.Search(host); node != nil {
-		if ip := node.Data.(net.IP).To4(); ip != nil {
-			return ip, nil
+		if ip := node.Data; ip.Is4() {
+			return ip.AsSlice(), nil
 		}
 	}
 
@@ -92,8 +93,8 @@ func ResolveIPv6WithResolver(host string, r Resolver) (net.IP, error) {
 	}
 
 	if node := DefaultHosts.Search(host); node != nil {
-		if ip := node.Data.(net.IP).To16(); ip != nil {
-			return ip, nil
+		if ip := node.Data; ip.Is6() {
+			return ip.AsSlice(), nil
 		}
 	}
 
@@ -128,7 +129,8 @@ func ResolveIPv6WithResolver(host string, r Resolver) (net.IP, error) {
 // ResolveIPWithResolver same as ResolveIP, but with a resolver
 func ResolveIPWithResolver(host string, r Resolver) (net.IP, error) {
 	if node := DefaultHosts.Search(host); node != nil {
-		return node.Data.(net.IP), nil
+		ip := node.Data
+		return ip.Unmap().AsSlice(), nil
 	}
 
 	if r != nil {

component/sniffer/dispatcher.go

@@ -0,0 +1,149 @@
+package sniffer
+
+import (
+	"errors"
+	"net"
+	"strconv"
+
+	"github.com/Dreamacro/clash/component/trie"
+
+	CN "github.com/Dreamacro/clash/common/net"
+	"github.com/Dreamacro/clash/common/utils"
+	"github.com/Dreamacro/clash/component/resolver"
+	C "github.com/Dreamacro/clash/constant"
+	"github.com/Dreamacro/clash/log"
+)
+
+var (
+	ErrorUnsupportedSniffer = errors.New("unsupported sniffer")
+	ErrorSniffFailed        = errors.New("all sniffer failed")
+)
+
+var Dispatcher SnifferDispatcher
+
+type SnifferDispatcher struct {
+	enable bool
+
+	sniffers []C.Sniffer
+
+	foreDomain *trie.DomainTrie[bool]
+	skipSNI    *trie.DomainTrie[bool]
+	portRanges *[]utils.Range[uint16]
+}
+
+func (sd *SnifferDispatcher) TCPSniff(conn net.Conn, metadata *C.Metadata) {
+	bufConn, ok := conn.(*CN.BufferedConn)
+	if !ok {
+		return
+	}
+
+	if metadata.Host == "" || sd.foreDomain.Search(metadata.Host) != nil {
+		port, err := strconv.ParseUint(metadata.DstPort, 10, 16)
+		if err != nil {
+			log.Debugln("[Sniffer] Dst port is error")
+			return
+		}
+
+		for _, portRange := range *sd.portRanges {
+			if !portRange.Contains(uint16(port)) {
+				return
+			}
+		}
+
+		if host, err := sd.sniffDomain(bufConn, metadata); err != nil {
+			log.Debugln("[Sniffer] All sniffing sniff failed with from [%s:%s] to [%s:%s]", metadata.SrcIP, metadata.SrcPort, metadata.String(), metadata.DstPort)
+			return
+		} else {
+			if sd.skipSNI.Search(host) != nil {
+				log.Debugln("[Sniffer] Skip sni[%s]", host)
+				return
+			}
+
+			sd.replaceDomain(metadata, host)
+		}
+	}
+}
+
+func (sd *SnifferDispatcher) replaceDomain(metadata *C.Metadata, host string) {
+	log.Debugln("[Sniffer] Sniff TCP [%s:%s]-->[%s:%s] success, replace domain [%s]-->[%s]",
+		metadata.SrcIP, metadata.SrcPort,
+		metadata.DstIP, metadata.DstPort,
+		metadata.Host, host)
+
+	metadata.AddrType = C.AtypDomainName
+	metadata.Host = host
+	metadata.DNSMode = C.DNSMapping
+	resolver.InsertHostByIP(metadata.DstIP, host)
+	metadata.DstIP = nil
+}
+
+func (sd *SnifferDispatcher) Enable() bool {
+	return sd.enable
+}
+
+func (sd *SnifferDispatcher) sniffDomain(conn *CN.BufferedConn, metadata *C.Metadata) (string, error) {
+	for _, sniffer := range sd.sniffers {
+		if sniffer.SupportNetwork() == C.TCP {
+			_, err := conn.Peek(1)
+			if err != nil {
+				return "", err
+			}
+
+			bufferedLen := conn.Buffered()
+			bytes, err := conn.Peek(bufferedLen)
+			if err != nil {
+				log.Debugln("[Sniffer] the data length not enough")
+				continue
+			}
+
+			host, err := sniffer.SniffTCP(bytes)
+			if err != nil {
+				log.Debugln("[Sniffer] [%s] Sniff data failed %s", sniffer.Protocol(), metadata.DstIP)
+				continue
+			}
+
+			return host, nil
+		}
+	}
+
+	return "", ErrorSniffFailed
+}
+
+func NewCloseSnifferDispatcher() (*SnifferDispatcher, error) {
+	dispatcher := SnifferDispatcher{
+		enable: false,
+	}
+
+	return &dispatcher, nil
+}
+
+func NewSnifferDispatcher(needSniffer []C.SnifferType, forceDomain *trie.DomainTrie[bool],
+	skipSNI *trie.DomainTrie[bool], ports *[]utils.Range[uint16]) (*SnifferDispatcher, error) {
+	dispatcher := SnifferDispatcher{
+		enable:     true,
+		foreDomain: forceDomain,
+		skipSNI:    skipSNI,
+		portRanges: ports,
+	}
+
+	for _, snifferName := range needSniffer {
+		sniffer, err := NewSniffer(snifferName)
+		if err != nil {
+			log.Errorln("Sniffer name[%s] is error", snifferName)
+			return &SnifferDispatcher{enable: false}, err
+		}
+
+		dispatcher.sniffers = append(dispatcher.sniffers, sniffer)
+	}
+
+	return &dispatcher, nil
+}
+
+func NewSniffer(name C.SnifferType) (C.Sniffer, error) {
+	switch name {
+	case C.TLS:
+		return &TLSSniffer{}, nil
+	default:
+		return nil, ErrorUnsupportedSniffer
+	}
+}

component/sniffer/sniff_test.go

@@ -0,0 +1,159 @@
+package sniffer
+
+import (
+	"testing"
+)
+
+func TestTLSHeaders(t *testing.T) {
+	cases := []struct {
+		input  []byte
+		domain string
+		err    bool
+	}{
+		{
+			input: []byte{
+				0x16, 0x03, 0x01, 0x00, 0xc8, 0x01, 0x00, 0x00,
+				0xc4, 0x03, 0x03, 0x1a, 0xac, 0xb2, 0xa8, 0xfe,
+				0xb4, 0x96, 0x04, 0x5b, 0xca, 0xf7, 0xc1, 0xf4,
+				0x2e, 0x53, 0x24, 0x6e, 0x34, 0x0c, 0x58, 0x36,
+				0x71, 0x97, 0x59, 0xe9, 0x41, 0x66, 0xe2, 0x43,
+				0xa0, 0x13, 0xb6, 0x00, 0x00, 0x20, 0x1a, 0x1a,
+				0xc0, 0x2b, 0xc0, 0x2f, 0xc0, 0x2c, 0xc0, 0x30,
+				0xcc, 0xa9, 0xcc, 0xa8, 0xcc, 0x14, 0xcc, 0x13,
+				0xc0, 0x13, 0xc0, 0x14, 0x00, 0x9c, 0x00, 0x9d,
+				0x00, 0x2f, 0x00, 0x35, 0x00, 0x0a, 0x01, 0x00,
+				0x00, 0x7b, 0xba, 0xba, 0x00, 0x00, 0xff, 0x01,
+				0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x16, 0x00,
+				0x14, 0x00, 0x00, 0x11, 0x63, 0x2e, 0x73, 0x2d,
+				0x6d, 0x69, 0x63, 0x72, 0x6f, 0x73, 0x6f, 0x66,
+				0x74, 0x2e, 0x63, 0x6f, 0x6d, 0x00, 0x17, 0x00,
+				0x00, 0x00, 0x23, 0x00, 0x00, 0x00, 0x0d, 0x00,
+				0x14, 0x00, 0x12, 0x04, 0x03, 0x08, 0x04, 0x04,
+				0x01, 0x05, 0x03, 0x08, 0x05, 0x05, 0x01, 0x08,
+				0x06, 0x06, 0x01, 0x02, 0x01, 0x00, 0x05, 0x00,
+				0x05, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12,
+				0x00, 0x00, 0x00, 0x10, 0x00, 0x0e, 0x00, 0x0c,
+				0x02, 0x68, 0x32, 0x08, 0x68, 0x74, 0x74, 0x70,
+				0x2f, 0x31, 0x2e, 0x31, 0x00, 0x0b, 0x00, 0x02,
+				0x01, 0x00, 0x00, 0x0a, 0x00, 0x0a, 0x00, 0x08,
+				0xaa, 0xaa, 0x00, 0x1d, 0x00, 0x17, 0x00, 0x18,
+				0xaa, 0xaa, 0x00, 0x01, 0x00,
+			},
+			domain: "c.s-microsoft.com",
+			err:    false,
+		},
+		{
+			input: []byte{
+				0x16, 0x03, 0x01, 0x00, 0xee, 0x01, 0x00, 0x00,
+				0xea, 0x03, 0x03, 0xe7, 0x91, 0x9e, 0x93, 0xca,
+				0x78, 0x1b, 0x3c, 0xe0, 0x65, 0x25, 0x58, 0xb5,
+				0x93, 0xe1, 0x0f, 0x85, 0xec, 0x9a, 0x66, 0x8e,
+				0x61, 0x82, 0x88, 0xc8, 0xfc, 0xae, 0x1e, 0xca,
+				0xd7, 0xa5, 0x63, 0x20, 0xbd, 0x1c, 0x00, 0x00,
+				0x8b, 0xee, 0x09, 0xe3, 0x47, 0x6a, 0x0e, 0x74,
+				0xb0, 0xbc, 0xa3, 0x02, 0xa7, 0x35, 0xe8, 0x85,
+				0x70, 0x7c, 0x7a, 0xf0, 0x00, 0xdf, 0x4a, 0xea,
+				0x87, 0x01, 0x14, 0x91, 0x00, 0x20, 0xea, 0xea,
+				0xc0, 0x2b, 0xc0, 0x2f, 0xc0, 0x2c, 0xc0, 0x30,
+				0xcc, 0xa9, 0xcc, 0xa8, 0xcc, 0x14, 0xcc, 0x13,
+				0xc0, 0x13, 0xc0, 0x14, 0x00, 0x9c, 0x00, 0x9d,
+				0x00, 0x2f, 0x00, 0x35, 0x00, 0x0a, 0x01, 0x00,
+				0x00, 0x81, 0x9a, 0x9a, 0x00, 0x00, 0xff, 0x01,
+				0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00,
+				0x16, 0x00, 0x00, 0x13, 0x77, 0x77, 0x77, 0x30,
+				0x37, 0x2e, 0x63, 0x6c, 0x69, 0x63, 0x6b, 0x74,
+				0x61, 0x6c, 0x65, 0x2e, 0x6e, 0x65, 0x74, 0x00,
+				0x17, 0x00, 0x00, 0x00, 0x23, 0x00, 0x00, 0x00,
+				0x0d, 0x00, 0x14, 0x00, 0x12, 0x04, 0x03, 0x08,
+				0x04, 0x04, 0x01, 0x05, 0x03, 0x08, 0x05, 0x05,
+				0x01, 0x08, 0x06, 0x06, 0x01, 0x02, 0x01, 0x00,
+				0x05, 0x00, 0x05, 0x01, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x12, 0x00, 0x00, 0x00, 0x10, 0x00, 0x0e,
+				0x00, 0x0c, 0x02, 0x68, 0x32, 0x08, 0x68, 0x74,
+				0x74, 0x70, 0x2f, 0x31, 0x2e, 0x31, 0x75, 0x50,
+				0x00, 0x00, 0x00, 0x0b, 0x00, 0x02, 0x01, 0x00,
+				0x00, 0x0a, 0x00, 0x0a, 0x00, 0x08, 0x9a, 0x9a,
+				0x00, 0x1d, 0x00, 0x17, 0x00, 0x18, 0x8a, 0x8a,
+				0x00, 0x01, 0x00,
+			},
+			domain: "www07.clicktale.net",
+			err:    false,
+		},
+		{
+			input: []byte{
+				0x16, 0x03, 0x01, 0x00, 0xe6, 0x01, 0x00, 0x00, 0xe2, 0x03, 0x03, 0x81, 0x47, 0xc1,
+				0x66, 0xd5, 0x1b, 0xfa, 0x4b, 0xb5, 0xe0, 0x2a, 0xe1, 0xa7, 0x87, 0x13, 0x1d, 0x11, 0xaa, 0xc6,
+				0xce, 0xfc, 0x7f, 0xab, 0x94, 0xc8, 0x62, 0xad, 0xc8, 0xab, 0x0c, 0xdd, 0xcb, 0x20, 0x6f, 0x9d,
+				0x07, 0xf1, 0x95, 0x3e, 0x99, 0xd8, 0xf3, 0x6d, 0x97, 0xee, 0x19, 0x0b, 0x06, 0x1b, 0xf4, 0x84,
+				0x0b, 0xb6, 0x8f, 0xcc, 0xde, 0xe2, 0xd0, 0x2d, 0x6b, 0x0c, 0x1f, 0x52, 0x53, 0x13, 0x00, 0x08,
+				0x13, 0x02, 0x13, 0x03, 0x13, 0x01, 0x00, 0xff, 0x01, 0x00, 0x00, 0x91, 0x00, 0x00, 0x00, 0x0c,
+				0x00, 0x0a, 0x00, 0x00, 0x07, 0x64, 0x6f, 0x67, 0x66, 0x69, 0x73, 0x68, 0x00, 0x0b, 0x00, 0x04,
+				0x03, 0x00, 0x01, 0x02, 0x00, 0x0a, 0x00, 0x0c, 0x00, 0x0a, 0x00, 0x1d, 0x00, 0x17, 0x00, 0x1e,
+				0x00, 0x19, 0x00, 0x18, 0x00, 0x23, 0x00, 0x00, 0x00, 0x16, 0x00, 0x00, 0x00, 0x17, 0x00, 0x00,
+				0x00, 0x0d, 0x00, 0x1e, 0x00, 0x1c, 0x04, 0x03, 0x05, 0x03, 0x06, 0x03, 0x08, 0x07, 0x08, 0x08,
+				0x08, 0x09, 0x08, 0x0a, 0x08, 0x0b, 0x08, 0x04, 0x08, 0x05, 0x08, 0x06, 0x04, 0x01, 0x05, 0x01,
+				0x06, 0x01, 0x00, 0x2b, 0x00, 0x07, 0x06, 0x7f, 0x1c, 0x7f, 0x1b, 0x7f, 0x1a, 0x00, 0x2d, 0x00,
+				0x02, 0x01, 0x01, 0x00, 0x33, 0x00, 0x26, 0x00, 0x24, 0x00, 0x1d, 0x00, 0x20, 0x2f, 0x35, 0x0c,
+				0xb6, 0x90, 0x0a, 0xb7, 0xd5, 0xc4, 0x1b, 0x2f, 0x60, 0xaa, 0x56, 0x7b, 0x3f, 0x71, 0xc8, 0x01,
+				0x7e, 0x86, 0xd3, 0xb7, 0x0c, 0x29, 0x1a, 0x9e, 0x5b, 0x38, 0x3f, 0x01, 0x72,
+			},
+			domain: "dogfish",
+			err:    false,
+		},
+		{
+			input: []byte{
+				0x16, 0x03, 0x01, 0x01, 0x03, 0x01, 0x00, 0x00,
+				0xff, 0x03, 0x03, 0x3d, 0x89, 0x52, 0x9e, 0xee,
+				0xbe, 0x17, 0x63, 0x75, 0xef, 0x29, 0xbd, 0x14,
+				0x6a, 0x49, 0xe0, 0x2c, 0x37, 0x57, 0x71, 0x62,
+				0x82, 0x44, 0x94, 0x8f, 0x6e, 0x94, 0x08, 0x45,
+				0x7f, 0xdb, 0xc1, 0x00, 0x00, 0x3e, 0xc0, 0x2c,
+				0xc0, 0x30, 0x00, 0x9f, 0xcc, 0xa9, 0xcc, 0xa8,
+				0xcc, 0xaa, 0xc0, 0x2b, 0xc0, 0x2f, 0x00, 0x9e,
+				0xc0, 0x24, 0xc0, 0x28, 0x00, 0x6b, 0xc0, 0x23,
+				0xc0, 0x27, 0x00, 0x67, 0xc0, 0x0a, 0xc0, 0x14,
+				0x00, 0x39, 0xc0, 0x09, 0xc0, 0x13, 0x00, 0x33,
+				0x00, 0x9d, 0x00, 0x9c, 0x13, 0x02, 0x13, 0x03,
+				0x13, 0x01, 0x00, 0x3d, 0x00, 0x3c, 0x00, 0x35,
+				0x00, 0x2f, 0x00, 0xff, 0x01, 0x00, 0x00, 0x98,
+				0x00, 0x00, 0x00, 0x10, 0x00, 0x0e, 0x00, 0x00,
+				0x0b, 0x31, 0x30, 0x2e, 0x34, 0x32, 0x2e, 0x30,
+				0x2e, 0x32, 0x34, 0x33, 0x00, 0x0b, 0x00, 0x04,
+				0x03, 0x00, 0x01, 0x02, 0x00, 0x0a, 0x00, 0x0a,
+				0x00, 0x08, 0x00, 0x1d, 0x00, 0x17, 0x00, 0x19,
+				0x00, 0x18, 0x00, 0x23, 0x00, 0x00, 0x00, 0x0d,
+				0x00, 0x20, 0x00, 0x1e, 0x04, 0x03, 0x05, 0x03,
+				0x06, 0x03, 0x08, 0x04, 0x08, 0x05, 0x08, 0x06,
+				0x04, 0x01, 0x05, 0x01, 0x06, 0x01, 0x02, 0x03,
+				0x02, 0x01, 0x02, 0x02, 0x04, 0x02, 0x05, 0x02,
+				0x06, 0x02, 0x00, 0x16, 0x00, 0x00, 0x00, 0x17,
+				0x00, 0x00, 0x00, 0x2b, 0x00, 0x09, 0x08, 0x7f,
+				0x14, 0x03, 0x03, 0x03, 0x02, 0x03, 0x01, 0x00,
+				0x2d, 0x00, 0x03, 0x02, 0x01, 0x00, 0x00, 0x28,
+				0x00, 0x26, 0x00, 0x24, 0x00, 0x1d, 0x00, 0x20,
+				0x13, 0x7c, 0x6e, 0x97, 0xc4, 0xfd, 0x09, 0x2e,
+				0x70, 0x2f, 0x73, 0x5a, 0x9b, 0x57, 0x4d, 0x5f,
+				0x2b, 0x73, 0x2c, 0xa5, 0x4a, 0x98, 0x40, 0x3d,
+				0x75, 0x6e, 0xb4, 0x76, 0xf9, 0x48, 0x8f, 0x36,
+			},
+			domain: "10.42.0.243",
+			err:    false,
+		},
+	}
+
+	for _, test := range cases {
+		domain, err := SniffTLS(test.input)
+		if test.err {
+			if err == nil {
+				t.Errorf("Exepct error but nil in test %v", test)
+			}
+		} else {
+			if err != nil {
+				t.Errorf("Expect no error but actually %s in test %v", err.Error(), test)
+			}
+			if *domain != test.domain {
+				t.Error("expect domain ", test.domain, " but got ", domain)
+			}
+		}
+	}
+}

component/sniffer/tls_sniffer.go

@@ -0,0 +1,157 @@
+package sniffer
+
+import (
+	"encoding/binary"
+	"errors"
+	"strings"
+
+	C "github.com/Dreamacro/clash/constant"
+)
+
+var (
+	errNotTLS         = errors.New("not TLS header")
+	errNotClientHello = errors.New("not client hello")
+	ErrNoClue         = errors.New("not enough information for making a decision")
+)
+
+type TLSSniffer struct {
+}
+
+func (tls *TLSSniffer) Protocol() string {
+	return "tls"
+}
+
+func (tls *TLSSniffer) SupportNetwork() C.NetWork {
+	return C.TCP
+}
+
+func (tls *TLSSniffer) SniffTCP(bytes []byte) (string, error) {
+	domain, err := SniffTLS(bytes)
+	if err == nil {
+		return *domain, nil
+	} else {
+		return "", err
+	}
+}
+
+func IsValidTLSVersion(major, minor byte) bool {
+	return major == 3
+}
+
+// ReadClientHello returns server name (if any) from TLS client hello message.
+// https://github.com/golang/go/blob/master/src/crypto/tls/handshake_messages.go#L300
+func ReadClientHello(data []byte) (*string, error) {
+	if len(data) < 42 {
+		return nil, ErrNoClue
+	}
+	sessionIDLen := int(data[38])
+	if sessionIDLen > 32 || len(data) < 39+sessionIDLen {
+		return nil, ErrNoClue
+	}
+	data = data[39+sessionIDLen:]
+	if len(data) < 2 {
+		return nil, ErrNoClue
+	}
+	// cipherSuiteLen is the number of bytes of cipher suite numbers. Since
+	// they are uint16s, the number must be even.
+	cipherSuiteLen := int(data[0])<<8 | int(data[1])
+	if cipherSuiteLen%2 == 1 || len(data) < 2+cipherSuiteLen {
+		return nil, errNotClientHello
+	}
+	data = data[2+cipherSuiteLen:]
+	if len(data) < 1 {
+		return nil, ErrNoClue
+	}
+	compressionMethodsLen := int(data[0])
+	if len(data) < 1+compressionMethodsLen {
+		return nil, ErrNoClue
+	}
+	data = data[1+compressionMethodsLen:]
+
+	if len(data) == 0 {
+		return nil, errNotClientHello
+	}
+	if len(data) < 2 {
+		return nil, errNotClientHello
+	}
+
+	extensionsLength := int(data[0])<<8 | int(data[1])
+	data = data[2:]
+	if extensionsLength != len(data) {
+		return nil, errNotClientHello
+	}
+
+	for len(data) != 0 {
+		if len(data) < 4 {
+			return nil, errNotClientHello
+		}
+		extension := uint16(data[0])<<8 | uint16(data[1])
+		length := int(data[2])<<8 | int(data[3])
+		data = data[4:]
+		if len(data) < length {
+			return nil, errNotClientHello
+		}
+
+		if extension == 0x00 { /* extensionServerName */
+			d := data[:length]
+			if len(d) < 2 {
+				return nil, errNotClientHello
+			}
+			namesLen := int(d[0])<<8 | int(d[1])
+			d = d[2:]
+			if len(d) != namesLen {
+				return nil, errNotClientHello
+			}
+			for len(d) > 0 {
+				if len(d) < 3 {
+					return nil, errNotClientHello
+				}
+				nameType := d[0]
+				nameLen := int(d[1])<<8 | int(d[2])
+				d = d[3:]
+				if len(d) < nameLen {
+					return nil, errNotClientHello
+				}
+				if nameType == 0 {
+					serverName := string(d[:nameLen])
+					// An SNI value may not include a
+					// trailing dot. See
+					// https://tools.ietf.org/html/rfc6066#section-3.
+					if strings.HasSuffix(serverName, ".") {
+						return nil, errNotClientHello
+					}
+
+					return &serverName, nil
+				}
+
+				d = d[nameLen:]
+			}
+		}
+		data = data[length:]
+	}
+
+	return nil, errNotTLS
+}
+
+func SniffTLS(b []byte) (*string, error) {
+	if len(b) < 5 {
+		return nil, ErrNoClue
+	}
+
+	if b[0] != 0x16 /* TLS Handshake */ {
+		return nil, errNotTLS
+	}
+	if !IsValidTLSVersion(b[1], b[2]) {
+		return nil, errNotTLS
+	}
+	headerLen := int(binary.BigEndian.Uint16(b[3:5]))
+	if 5+headerLen > len(b) {
+		return nil, ErrNoClue
+	}
+
+	domain, err := ReadClientHello(b[5 : 5+headerLen])
+	if err == nil {
+		return domain, nil
+	}
+	return nil, err
+}

component/trie/domain.go

@@ -17,8 +17,8 @@ var ErrInvalidDomain = errors.New("invalid domain")
 
 // DomainTrie contains the main logic for adding and searching nodes for domain segments.
 // support wildcard domain (e.g *.google.com)
-type DomainTrie struct {
-	root *Node
+type DomainTrie[T comparable] struct {
+	root *Node[T]
 }
 
 func ValidAndSplitDomain(domain string) ([]string, bool) {
@@ -51,7 +51,7 @@ func ValidAndSplitDomain(domain string) ([]string, bool) {
 // 3. subdomain.*.example.com
 // 4. .example.com
 // 5. +.example.com
-func (t *DomainTrie) Insert(domain string, data any) error {
+func (t *DomainTrie[T]) Insert(domain string, data T) error {
 	parts, valid := ValidAndSplitDomain(domain)
 	if !valid {
 		return ErrInvalidDomain
@@ -68,13 +68,13 @@ func (t *DomainTrie) Insert(domain string, data any) error {
 	return nil
 }
 
-func (t *DomainTrie) insert(parts []string, data any) {
+func (t *DomainTrie[T]) insert(parts []string, data T) {
 	node := t.root
 	// reverse storage domain part to save space
 	for i := len(parts) - 1; i >= 0; i-- {
 		part := parts[i]
 		if !node.hasChild(part) {
-			node.addChild(part, newNode(nil))
+			node.addChild(part, newNode(getZero[T]()))
 		}
 
 		node = node.getChild(part)
@@ -88,7 +88,7 @@ func (t *DomainTrie) insert(parts []string, data any) {
 // 1. static part
 // 2. wildcard domain
 // 2. dot wildcard domain
-func (t *DomainTrie) Search(domain string) *Node {
+func (t *DomainTrie[T]) Search(domain string) *Node[T] {
 	parts, valid := ValidAndSplitDomain(domain)
 	if !valid || parts[0] == "" {
 		return nil
@@ -96,26 +96,26 @@ func (t *DomainTrie) Search(domain string) *Node {
 
 	n := t.search(t.root, parts)
 
-	if n == nil || n.Data == nil {
+	if n == nil || n.Data == getZero[T]() {
 		return nil
 	}
 
 	return n
 }
 
-func (t *DomainTrie) search(node *Node, parts []string) *Node {
+func (t *DomainTrie[T]) search(node *Node[T], parts []string) *Node[T] {
 	if len(parts) == 0 {
 		return node
 	}
 
 	if c := node.getChild(parts[len(parts)-1]); c != nil {
-		if n := t.search(c, parts[:len(parts)-1]); n != nil && n.Data != nil {
+		if n := t.search(c, parts[:len(parts)-1]); n != nil && n.Data != getZero[T]() {
 			return n
 		}
 	}
 
 	if c := node.getChild(wildcard); c != nil {
-		if n := t.search(c, parts[:len(parts)-1]); n != nil && n.Data != nil {
+		if n := t.search(c, parts[:len(parts)-1]); n != nil && n.Data != getZero[T]() {
 			return n
 		}
 	}
@@ -124,6 +124,6 @@ func (t *DomainTrie) search(node *Node, parts []string) *Node {
 }
 
 // New returns a new, empty Trie.
-func New() *DomainTrie {
-	return &DomainTrie{root: newNode(nil)}
+func New[T comparable]() *DomainTrie[T] {
+	return &DomainTrie[T]{root: newNode[T](getZero[T]())}
 }

component/trie/domain_test.go

@@ -1,16 +1,16 @@
 package trie
 
 import (
-	"net"
+	"net/netip"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
 )
 
-var localIP = net.IP{127, 0, 0, 1}
+var localIP = netip.AddrFrom4([4]byte{127, 0, 0, 1})
 
 func TestTrie_Basic(t *testing.T) {
-	tree := New()
+	tree := New[netip.Addr]()
 	domains := []string{
 		"example.com",
 		"google.com",
@@ -23,7 +23,7 @@ func TestTrie_Basic(t *testing.T) {
 
 	node := tree.Search("example.com")
 	assert.NotNil(t, node)
-	assert.True(t, node.Data.(net.IP).Equal(localIP))
+	assert.True(t, node.Data == localIP)
 	assert.NotNil(t, tree.Insert("", localIP))
 	assert.Nil(t, tree.Search(""))
 	assert.NotNil(t, tree.Search("localhost"))
@@ -31,7 +31,7 @@ func TestTrie_Basic(t *testing.T) {
 }
 
 func TestTrie_Wildcard(t *testing.T) {
-	tree := New()
+	tree := New[netip.Addr]()
 	domains := []string{
 		"*.example.com",
 		"sub.*.example.com",
@@ -64,7 +64,7 @@ func TestTrie_Wildcard(t *testing.T) {
 }
 
 func TestTrie_Priority(t *testing.T) {
-	tree := New()
+	tree := New[int]()
 	domains := []string{
 		".dev",
 		"example.dev",
@@ -79,18 +79,18 @@ func TestTrie_Priority(t *testing.T) {
 	}
 
 	for idx, domain := range domains {
-		tree.Insert(domain, idx)
+		tree.Insert(domain, idx+1)
 	}
 
-	assertFn("test.dev", 0)
-	assertFn("foo.bar.dev", 0)
-	assertFn("example.dev", 1)
-	assertFn("foo.example.dev", 2)
-	assertFn("test.example.dev", 3)
+	assertFn("test.dev", 1)
+	assertFn("foo.bar.dev", 1)
+	assertFn("example.dev", 2)
+	assertFn("foo.example.dev", 3)
+	assertFn("test.example.dev", 4)
 }
 
 func TestTrie_Boundary(t *testing.T) {
-	tree := New()
+	tree := New[netip.Addr]()
 	tree.Insert("*.dev", localIP)
 
 	assert.NotNil(t, tree.Insert(".", localIP))
@@ -99,7 +99,7 @@ func TestTrie_Boundary(t *testing.T) {
 }
 
 func TestTrie_WildcardBoundary(t *testing.T) {
-	tree := New()
+	tree := New[netip.Addr]()
 	tree.Insert("+.*", localIP)
 	tree.Insert("stun.*.*.*", localIP)
 

component/trie/node.go

@@ -1,26 +1,31 @@
 package trie
 
 // Node is the trie's node
-type Node struct {
-	children map[string]*Node
-	Data     any
+type Node[T comparable] struct {
+	children map[string]*Node[T]
+	Data     T
 }
 
-func (n *Node) getChild(s string) *Node {
+func (n *Node[T]) getChild(s string) *Node[T] {
 	return n.children[s]
 }
 
-func (n *Node) hasChild(s string) bool {
+func (n *Node[T]) hasChild(s string) bool {
 	return n.getChild(s) != nil
 }
 
-func (n *Node) addChild(s string, child *Node) {
+func (n *Node[T]) addChild(s string, child *Node[T]) {
 	n.children[s] = child
 }
 
-func newNode(data any) *Node {
-	return &Node{
+func newNode[T comparable](data T) *Node[T] {
+	return &Node[T]{
 		Data:     data,
-		children: map[string]*Node{},
+		children: map[string]*Node[T]{},
 	}
 }
+
+func getZero[T comparable]() T {
+	var result T
+	return result
+}

config/config.go

@@ -4,16 +4,19 @@ import (
 	"container/list"
 	"errors"
 	"fmt"
-	R "github.com/Dreamacro/clash/rule"
-	RP "github.com/Dreamacro/clash/rule/provider"
 	"net"
 	"net/netip"
 	"net/url"
 	"os"
 	"runtime"
+	"strconv"
 	"strings"
 	"time"
 
+	"github.com/Dreamacro/clash/common/utils"
+	R "github.com/Dreamacro/clash/rule"
+	RP "github.com/Dreamacro/clash/rule/provider"
+
 	"github.com/Dreamacro/clash/adapter"
 	"github.com/Dreamacro/clash/adapter/outbound"
 	"github.com/Dreamacro/clash/adapter/outboundgroup"
@@ -78,7 +81,7 @@ type DNS struct {
 	EnhancedMode          C.DNSMode        `yaml:"enhanced-mode"`
 	DefaultNameserver     []dns.NameServer `yaml:"default-nameserver"`
 	FakeIPRange           *fakeip.Pool
-	Hosts                 *trie.DomainTrie
+	Hosts                 *trie.DomainTrie[netip.Addr]
 	NameServerPolicy      map[string]dns.NameServer
 	ProxyServerNameserver []dns.NameServer
 }
@@ -113,12 +116,6 @@ type Tun struct {
 	AutoRoute bool             `yaml:"auto-route" json:"auto-route"`
 }
 
-// Script config
-type Script struct {
-	MainCode      string            `yaml:"code" json:"code"`
-	ShortcutsCode map[string]string `yaml:"shortcuts" json:"shortcuts"`
-}
-
 // IPTables config
 type IPTables struct {
 	Enable           bool     `yaml:"enable" json:"enable"`
@@ -126,6 +123,16 @@ type IPTables struct {
 	Bypass           []string `yaml:"bypass" json:"bypass"`
 }
 
+type Sniffer struct {
+	Enable      bool
+	Force       bool
+	Sniffers    []C.SnifferType
+	Reverses    *trie.DomainTrie[bool]
+	ForceDomain *trie.DomainTrie[bool]
+	SkipSNI     *trie.DomainTrie[bool]
+	Ports       *[]utils.Range[uint16]
+}
+
 // Experimental config
 type Experimental struct{}
 
@@ -136,13 +143,14 @@ type Config struct {
 	IPTables      *IPTables
 	DNS           *DNS
 	Experimental  *Experimental
-	Hosts         *trie.DomainTrie
+	Hosts         *trie.DomainTrie[netip.Addr]
 	Profile       *Profile
 	Rules         []C.Rule
 	Users         []auth.AuthUser
 	Proxies       map[string]C.Proxy
 	Providers     map[string]providerTypes.ProxyProvider
 	RuleProviders map[string]*providerTypes.RuleProvider
+	Sniffer       *Sniffer
 }
 
 type RawDNS struct {
@@ -175,6 +183,7 @@ type RawTun struct {
 	Stack               C.TUNStack `yaml:"stack" json:"stack"`
 	DNSHijack           []string   `yaml:"dns-hijack" json:"dns-hijack"`
 	AutoRoute           bool       `yaml:"auto-route" json:"auto-route"`
+	AutoDetectInterface bool       `yaml:"auto-detect-interface"`
 }
 
 type RawConfig struct {
@@ -198,6 +207,7 @@ type RawConfig struct {
 	GeodataMode        bool         `yaml:"geodata-mode"`
 	GeodataLoader      string       `yaml:"geodata-loader"`
 
+	Sniffer       SnifferRaw                `yaml:"sniffer"`
 	ProxyProvider map[string]map[string]any `yaml:"proxy-providers"`
 	RuleProvider  map[string]map[string]any `yaml:"rule-providers"`
 	Hosts         map[string]string         `yaml:"hosts"`
@@ -211,6 +221,16 @@ type RawConfig struct {
 	Rule          []string                  `yaml:"rules"`
 }
 
+type SnifferRaw struct {
+	Enable      bool     `yaml:"enable" json:"enable"`
+	Sniffing    []string `yaml:"sniffing" json:"sniffing"`
+	Force       bool     `yaml:"force" json:"force"`
+	Reverse     []string `yaml:"reverses" json:"reverses"`
+	ForceDomain []string `yaml:"force-domain" json:"force-domain"`
+	SkipSNI     []string `yaml:"skip-sni" json:"skip-sni"`
+	Ports       []string `yaml:"port-whitelist" json:"port-whitelist"`
+}
+
 // Parse config
 func Parse(buf []byte) (*Config, error) {
 	rawCfg, err := UnmarshalRawConfig(buf)
@@ -239,6 +259,7 @@ func UnmarshalRawConfig(buf []byte) (*RawConfig, error) {
 		Tun: RawTun{
 			Enable:              false,
 			Device:              "",
+			AutoDetectInterface: true,
 			Stack:               C.TunGvisor,
 			DNSHijack:           []string{"0.0.0.0:53"}, // default hijack all dns query
 			AutoRoute:           true,
@@ -275,6 +296,15 @@ func UnmarshalRawConfig(buf []byte) (*RawConfig, error) {
 				"www.msftconnecttest.com",
 			},
 		},
+		Sniffer: SnifferRaw{
+			Enable:      false,
+			Force:       false,
+			Sniffing:    []string{},
+			Reverse:     []string{},
+			ForceDomain: []string{},
+			SkipSNI:     []string{},
+			Ports:       []string{},
+		},
 		Profile: Profile{
 			StoreSelected: true,
 		},
@@ -337,6 +367,11 @@ func ParseRawConfig(rawCfg *RawConfig) (*Config, error) {
 
 	config.Users = parseAuthentication(rawCfg.Authentication)
 
+	config.Sniffer, err = parseSniffer(rawCfg.Sniffer)
+	if err != nil {
+		return nil, err
+	}
+
 	elapsedTime := time.Since(startTime) / time.Millisecond                     // duration in ms
 	log.Infoln("Initial configuration complete, total time: %dms", elapsedTime) //Segment finished in xxm
 	return config, nil
@@ -538,7 +573,7 @@ func parseRules(cfg *RawConfig, proxies map[string]C.Proxy) ([]C.Rule, map[strin
 			params = rule[l:]
 		}
 
-		if _, ok := proxies[target]; mode != T.Script && !ok {
+		if _, ok := proxies[target]; !ok {
 			return nil, nil, fmt.Errorf("rules[%d] [%s] error: proxy [%s] not found", idx, line, target)
 		}
 
@@ -555,28 +590,26 @@ func parseRules(cfg *RawConfig, proxies map[string]C.Proxy) ([]C.Rule, map[strin
 			return nil, nil, fmt.Errorf("rules[%d] [%s] error: %s", idx, line, parseErr.Error())
 		}
 
-		if mode != T.Script {
 		rules = append(rules, parsed)
 	}
-	}
 
 	runtime.GC()
 
 	return rules, ruleProviders, nil
 }
 
-func parseHosts(cfg *RawConfig) (*trie.DomainTrie, error) {
-	tree := trie.New()
+func parseHosts(cfg *RawConfig) (*trie.DomainTrie[netip.Addr], error) {
+	tree := trie.New[netip.Addr]()
 
 	// add default hosts
-	if err := tree.Insert("localhost", net.IP{127, 0, 0, 1}); err != nil {
+	if err := tree.Insert("localhost", netip.AddrFrom4([4]byte{127, 0, 0, 1})); err != nil {
 		log.Errorln("insert localhost to host error: %s", err.Error())
 	}
 
 	if len(cfg.Hosts) != 0 {
 		for domain, ipStr := range cfg.Hosts {
-			ip := net.ParseIP(ipStr)
-			if ip == nil {
+			ip, err := netip.ParseAddr(ipStr)
+			if err != nil {
 				return nil, fmt.Errorf("%s is not a valid IP", ipStr)
 			}
 			_ = tree.Insert(domain, ip)
@@ -724,7 +757,7 @@ func parseFallbackGeoSite(countries []string, rules []C.Rule) ([]*router.DomainM
 	return sites, nil
 }
 
-func parseDNS(rawCfg *RawConfig, hosts *trie.DomainTrie, rules []C.Rule) (*DNS, error) {
+func parseDNS(rawCfg *RawConfig, hosts *trie.DomainTrie[netip.Addr], rules []C.Rule) (*DNS, error) {
 	cfg := rawCfg.DNS
 	if cfg.Enable && len(cfg.NameServer) == 0 {
 		return nil, fmt.Errorf("if DNS configuration is turned on, NameServer cannot be empty")
@@ -767,20 +800,23 @@ func parseDNS(rawCfg *RawConfig, hosts *trie.DomainTrie, rules []C.Rule) (*DNS,
 	for _, ns := range dnsCfg.DefaultNameserver {
 		host, _, err := net.SplitHostPort(ns.Addr)
 		if err != nil || net.ParseIP(host) == nil {
+			u, err := url.Parse(ns.Addr)
+			if err != nil || net.ParseIP(u.Host) == nil {
 				return nil, errors.New("default nameserver should be pure IP")
 			}
 		}
+	}
 
 	if cfg.EnhancedMode == C.DNSFakeIP {
-		_, ipnet, err := net.ParseCIDR(cfg.FakeIPRange)
+		ipnet, err := netip.ParsePrefix(cfg.FakeIPRange)
 		if err != nil {
 			return nil, err
 		}
 
-		var host *trie.DomainTrie
+		var host *trie.DomainTrie[bool]
 		// fake ip skip host filter
 		if len(cfg.FakeIPFilter) != 0 {
-			host = trie.New()
+			host = trie.New[bool]()
 			for _, domain := range cfg.FakeIPFilter {
 				_ = host.Insert(domain, true)
 			}
@@ -788,7 +824,7 @@ func parseDNS(rawCfg *RawConfig, hosts *trie.DomainTrie, rules []C.Rule) (*DNS,
 
 		if len(dnsCfg.Fallback) != 0 {
 			if host == nil {
-				host = trie.New()
+				host = trie.New[bool]()
 			}
 			for _, fb := range dnsCfg.Fallback {
 				if net.ParseIP(fb.Addr) != nil {
@@ -799,7 +835,7 @@ func parseDNS(rawCfg *RawConfig, hosts *trie.DomainTrie, rules []C.Rule) (*DNS,
 		}
 
 		pool, err := fakeip.New(fakeip.Options{
-			IPNet:       ipnet,
+			IPNet:       &ipnet,
 			Size:        1000,
 			Host:        host,
 			Persistence: rawCfg.Profile.StoreFakeIP,
@@ -843,7 +879,7 @@ func parseAuthentication(rawRecords []string) []auth.AuthUser {
 }
 
 func parseTun(rawTun RawTun, general *General) (*Tun, error) {
-	if (rawTun.Enable || general.TProxyPort != 0) && general.Interface == "" {
+	if rawTun.Enable && rawTun.AutoDetectInterface {
 		autoDetectInterfaceName, err := commons.GetAutoDetectInterface()
 		if err != nil || autoDetectInterfaceName == "" {
 			log.Warnln("Can not find auto detect interface.[%s]", err)
@@ -877,3 +913,97 @@ func parseTun(rawTun RawTun, general *General) (*Tun, error) {
 		AutoRoute: rawTun.AutoRoute,
 	}, nil
 }
+
+func parseSniffer(snifferRaw SnifferRaw) (*Sniffer, error) {
+	sniffer := &Sniffer{
+		Enable: snifferRaw.Enable,
+		Force:  snifferRaw.Force,
+	}
+
+	ports := []utils.Range[uint16]{}
+	if len(snifferRaw.Ports) == 0 {
+		ports = append(ports, *utils.NewRange[uint16](0, 65535))
+	} else {
+		for _, portRange := range snifferRaw.Ports {
+			portRaws := strings.Split(portRange, "-")
+			if len(portRaws) > 1 {
+				p, err := strconv.ParseUint(portRaws[0], 10, 16)
+				if err != nil {
+					return nil, fmt.Errorf("%s format error", portRange)
+				}
+
+				start := uint16(p)
+
+				p, err = strconv.ParseUint(portRaws[0], 10, 16)
+				if err != nil {
+					return nil, fmt.Errorf("%s format error", portRange)
+				}
+
+				end := uint16(p)
+				ports = append(ports, *utils.NewRange(start, end))
+			}
+		}
+	}
+
+	sniffer.Ports = &ports
+
+	loadSniffer := make(map[C.SnifferType]struct{})
+
+	for _, snifferName := range snifferRaw.Sniffing {
+		find := false
+		for _, snifferType := range C.SnifferList {
+			if snifferType.String() == strings.ToUpper(snifferName) {
+				find = true
+				loadSniffer[snifferType] = struct{}{}
+			}
+		}
+
+		if !find {
+			return nil, fmt.Errorf("not find the sniffer[%s]", snifferName)
+		}
+	}
+
+	for st := range loadSniffer {
+		sniffer.Sniffers = append(sniffer.Sniffers, st)
+	}
+
+	sniffer.ForceDomain = trie.New[bool]()
+	for _, domain := range snifferRaw.ForceDomain {
+		err := sniffer.ForceDomain.Insert(domain, true)
+		if err != nil {
+			return nil, fmt.Errorf("error domian[%s] in force-domain, error:%v", domain, err)
+		}
+	}
+
+	sniffer.SkipSNI = trie.New[bool]()
+	for _, domain := range snifferRaw.SkipSNI {
+		err := sniffer.SkipSNI.Insert(domain, true)
+		if err != nil {
+			return nil, fmt.Errorf("error domian[%s] in force-domain, error:%v", domain, err)
+		}
+	}
+
+	// Compatibility, remove it when release
+	if strings.Contains(C.Version, "alpha") || strings.Contains(C.Version, "develop") || strings.Contains(C.Version, "1.10.0") {
+		log.Warnln("Sniffer param force and reverses deprecated, will be removed in the release version, see https://github.com/MetaCubeX/Clash.Meta/commit/48a01adb7a4f38974b9d9639f931d0d245aebf28")
+		if snifferRaw.Force {
+			// match all domain
+			sniffer.ForceDomain.Insert("+", true)
+			for _, domain := range snifferRaw.Reverse {
+				err := sniffer.SkipSNI.Insert(domain, true)
+				if err != nil {
+					return nil, fmt.Errorf("error domian[%s], error:%v", domain, err)
+				}
+			}
+		} else {
+			for _, domain := range snifferRaw.Reverse {
+				err := sniffer.ForceDomain.Insert(domain, true)
+				if err != nil {
+					return nil, fmt.Errorf("error domian[%s], error:%v", domain, err)
+				}
+			}
+		}
+	}
+
+	return sniffer, nil
+}

constant/metadata.go

@@ -88,6 +88,7 @@ type Metadata struct {
 
 func (m *Metadata) RemoteAddress() string {
         return net.JoinHostPort(m.String(), m.DstPort)
+	
 }
 
 func (m *Metadata) SourceAddress() string {

constant/sniffer.go

@@ -0,0 +1,26 @@
+package constant
+
+type Sniffer interface {
+	SupportNetwork() NetWork
+	SniffTCP(bytes []byte) (string, error)
+	Protocol() string
+}
+
+const (
+	TLS SnifferType = iota
+)
+
+var (
+	SnifferList = []SnifferType{TLS}
+)
+
+type SnifferType int
+
+func (rt SnifferType) String() string {
+	switch rt {
+	case TLS:
+		return "TLS"
+	default:
+		return "Unknown"
+	}
+}

context/conn.go

@@ -3,8 +3,8 @@ package context
 import (
 	"net"
 
+	CN "github.com/Dreamacro/clash/common/net"
 	C "github.com/Dreamacro/clash/constant"
-
 	"github.com/gofrs/uuid"
 )
 
@@ -19,7 +19,7 @@ func NewConnContext(conn net.Conn, metadata *C.Metadata) *ConnContext {
 	return &ConnContext{
 		id:       id,
 		metadata: metadata,
-		conn:     conn,
+		conn:     CN.NewBufferedConn(conn),
 	}
 }
 

dns/enhancer.go

@@ -2,6 +2,7 @@ package dns
 
 import (
 	"net"
+	"net/netip"
 
 	"github.com/Dreamacro/clash/common/cache"
 	"github.com/Dreamacro/clash/component/fakeip"
@@ -11,7 +12,7 @@ import (
 type ResolverEnhancer struct {
 	mode     C.DNSMode
 	fakePool *fakeip.Pool
-	mapping  *cache.LruCache
+	mapping  *cache.LruCache[netip.Addr, string]
 }
 
 func (h *ResolverEnhancer) FakeIPEnabled() bool {
@@ -28,7 +29,7 @@ func (h *ResolverEnhancer) IsExistFakeIP(ip net.IP) bool {
 	}
 
 	if pool := h.fakePool; pool != nil {
-		return pool.Exist(ip)
+		return pool.Exist(ipToAddr(ip))
 	}
 
 	return false
@@ -39,8 +40,10 @@ func (h *ResolverEnhancer) IsFakeIP(ip net.IP) bool {
 		return false
 	}
 
+	addr := ipToAddr(ip)
+
 	if pool := h.fakePool; pool != nil {
-		return pool.IPNet().Contains(ip) && !pool.Gateway().Equal(ip) && !pool.Broadcast().Equal(ip)
+		return pool.IPNet().Contains(addr) && addr != pool.Gateway() && addr != pool.Broadcast()
 	}
 
 	return false
@@ -52,28 +55,35 @@ func (h *ResolverEnhancer) IsFakeBroadcastIP(ip net.IP) bool {
 	}
 
 	if pool := h.fakePool; pool != nil {
-		return pool.Broadcast().Equal(ip)
+		return pool.Broadcast() == ipToAddr(ip)
 	}
 
 	return false
 }
 
 func (h *ResolverEnhancer) FindHostByIP(ip net.IP) (string, bool) {
+	addr := ipToAddr(ip)
 	if pool := h.fakePool; pool != nil {
-		if host, existed := pool.LookBack(ip); existed {
+		if host, existed := pool.LookBack(addr); existed {
 			return host, true
 		}
 	}
 
 	if mapping := h.mapping; mapping != nil {
-		if host, existed := h.mapping.Get(ip.String()); existed {
-			return host.(string), true
+		if host, existed := h.mapping.Get(addr); existed {
+			return host, true
 		}
 	}
 
 	return "", false
 }
 
+func (h *ResolverEnhancer) InsertHostByIP(ip net.IP, host string) {
+	if mapping := h.mapping; mapping != nil {
+		h.mapping.Set(ipToAddr(ip), host)
+	}
+}
+
 func (h *ResolverEnhancer) PatchFrom(o *ResolverEnhancer) {
 	if h.mapping != nil && o.mapping != nil {
 		o.mapping.CloneTo(h.mapping)
@@ -93,11 +103,11 @@ func (h *ResolverEnhancer) FlushFakeIP() error {
 
 func NewEnhancer(cfg Config) *ResolverEnhancer {
 	var fakePool *fakeip.Pool
-	var mapping *cache.LruCache
+	var mapping *cache.LruCache[netip.Addr, string]
 
 	if cfg.EnhancedMode != C.DNSNormal {
 		fakePool = cfg.Pool
-		mapping = cache.NewLRUCache(cache.WithSize(4096), cache.WithStale(true))
+		mapping = cache.NewLRUCache[netip.Addr, string](cache.WithSize[netip.Addr, string](4096), cache.WithStale[netip.Addr, string](true))
 	}
 
 	return &ResolverEnhancer{

dns/filters.go

@@ -70,13 +70,13 @@ type fallbackDomainFilter interface {
 }
 
 type domainFilter struct {
-	tree *trie.DomainTrie
+	tree *trie.DomainTrie[bool]
 }
 
 func NewDomainFilter(domains []string) *domainFilter {
-	df := domainFilter{tree: trie.New()}
+	df := domainFilter{tree: trie.New[bool]()}
 	for _, domain := range domains {
-		df.tree.Insert(domain, "")
+		df.tree.Insert(domain, true)
 	}
 	return &df
 }

dns/middleware.go

@@ -2,6 +2,7 @@ package dns
 
 import (
 	"net"
+	"net/netip"
 	"strings"
 	"time"
 
@@ -20,7 +21,7 @@ type (
 	middleware func(next handler) handler
 )
 
-func withHosts(hosts *trie.DomainTrie) middleware {
+func withHosts(hosts *trie.DomainTrie[netip.Addr], mapping *cache.LruCache[netip.Addr, string]) middleware {
 	return func(next handler) handler {
 		return func(ctx *context.DNSContext, r *D.Msg) (*D.Msg, error) {
 			q := r.Question[0]
@@ -29,30 +30,36 @@ func withHosts(hosts *trie.DomainTrie) middleware {
 				return next(ctx, r)
 			}
 
-			record := hosts.Search(strings.TrimRight(q.Name, "."))
+			host := strings.TrimRight(q.Name, ".")
+
+			record := hosts.Search(host)
 			if record == nil {
 				return next(ctx, r)
 			}
 
-			ip := record.Data.(net.IP)
+			ip := record.Data
 			msg := r.Copy()
 
-			if v4 := ip.To4(); v4 != nil && q.Qtype == D.TypeA {
+			if ip.Is4() && q.Qtype == D.TypeA {
 				rr := &D.A{}
-				rr.Hdr = D.RR_Header{Name: q.Name, Rrtype: D.TypeA, Class: D.ClassINET, Ttl: dnsDefaultTTL}
-				rr.A = v4
+				rr.Hdr = D.RR_Header{Name: q.Name, Rrtype: D.TypeA, Class: D.ClassINET, Ttl: 10}
+				rr.A = ip.AsSlice()
 
 				msg.Answer = []D.RR{rr}
-			} else if v6 := ip.To16(); v6 != nil && q.Qtype == D.TypeAAAA {
+			} else if ip.Is6() && q.Qtype == D.TypeAAAA {
 				rr := &D.AAAA{}
-				rr.Hdr = D.RR_Header{Name: q.Name, Rrtype: D.TypeAAAA, Class: D.ClassINET, Ttl: dnsDefaultTTL}
-				rr.AAAA = v6
+				rr.Hdr = D.RR_Header{Name: q.Name, Rrtype: D.TypeAAAA, Class: D.ClassINET, Ttl: 10}
+				rr.AAAA = ip.AsSlice()
 
 				msg.Answer = []D.RR{rr}
 			} else {
 				return next(ctx, r)
 			}
 
+			if mapping != nil {
+				mapping.SetWithExpire(ip, host, time.Now().Add(time.Second*10))
+			}
+
 			ctx.SetType(context.DNSTypeHost)
 			msg.SetRcode(r, D.RcodeSuccess)
 			msg.Authoritative = true
@@ -63,7 +70,7 @@ func withHosts(hosts *trie.DomainTrie) middleware {
 	}
 }
 
-func withMapping(mapping *cache.LruCache) middleware {
+func withMapping(mapping *cache.LruCache[netip.Addr, string]) middleware {
 	return func(next handler) handler {
 		return func(ctx *context.DNSContext, r *D.Msg) (*D.Msg, error) {
 			q := r.Question[0]
@@ -94,7 +101,7 @@ func withMapping(mapping *cache.LruCache) middleware {
 					continue
 				}
 
-				mapping.SetWithExpire(ip.String(), host, time.Now().Add(time.Second*time.Duration(ttl)))
+				mapping.SetWithExpire(ipToAddr(ip), host, time.Now().Add(time.Second*time.Duration(ttl)))
 			}
 
 			return msg, nil
@@ -124,7 +131,7 @@ func withFakeIP(fakePool *fakeip.Pool) middleware {
 			rr := &D.A{}
 			rr.Hdr = D.RR_Header{Name: q.Name, Rrtype: D.TypeA, Class: D.ClassINET, Ttl: dnsDefaultTTL}
 			ip := fakePool.Lookup(host)
-			rr.A = ip
+			rr.A = ip.AsSlice()
 			msg := r.Copy()
 			msg.Answer = []D.RR{rr}
 
@@ -176,7 +183,7 @@ func NewHandler(resolver *Resolver, mapper *ResolverEnhancer) handler {
 	middlewares := []middleware{}
 
 	if resolver.hosts != nil {
-		middlewares = append(middlewares, withHosts(resolver.hosts))
+		middlewares = append(middlewares, withHosts(resolver.hosts, mapper.mapping))
 	}
 
 	if mapper.mode == C.DNSFakeIP {

dns/policy.go

@@ -0,0 +1,30 @@
+package dns
+
+type Policy struct {
+	data []dnsClient
+}
+
+func (p *Policy) GetData() []dnsClient {
+	return p.data
+}
+
+func (p *Policy) Compare(p2 *Policy) int {
+	if p2 == nil {
+		return 1
+	}
+	l1 := len(p.data)
+	l2 := len(p2.data)
+	if l1 == l2 {
+		return 0
+	}
+	if l1 > l2 {
+		return 1
+	}
+	return -1
+}
+
+func NewPolicy(data []dnsClient) *Policy {
+	return &Policy{
+		data: data,
+	}
+}

dns/quic.go

@@ -19,7 +19,7 @@ var bytesPool = sync.Pool{New: func() interface{} { return &bytes.Buffer{} }}
 
 type quicClient struct {
 	addr         string
-	session      quic.Session
+	session      quic.Connection
 	sync.RWMutex // protects session and bytesPool
 }
 
@@ -67,7 +67,7 @@ func (dc *quicClient) ExchangeContext(ctx context.Context, m *D.Msg) (msg *D.Msg
 	return reply, nil
 }
 
-func isActive(s quic.Session) bool {
+func isActive(s quic.Connection) bool {
 	select {
 	case <-s.Context().Done():
 		return false
@@ -76,11 +76,11 @@ func isActive(s quic.Session) bool {
 	}
 }
 
-// getSession - opens or returns an existing quic.Session
+// getSession - opens or returns an existing quic.Connection
 // useCached - if true and cached session exists, return it right away
 // otherwise - forcibly creates a new session
-func (dc *quicClient) getSession() (quic.Session, error) {
-	var session quic.Session
+func (dc *quicClient) getSession() (quic.Connection, error) {
+	var session quic.Connection
 	dc.RLock()
 	session = dc.session
 	if session != nil && isActive(session) {
@@ -113,7 +113,7 @@ func (dc *quicClient) getSession() (quic.Session, error) {
 	return session, nil
 }
 
-func (dc *quicClient) openSession() (quic.Session, error) {
+func (dc *quicClient) openSession() (quic.Connection, error) {
 	tlsConfig := &tls.Config{
 		InsecureSkipVerify: true,
 		NextProtos: []string{

dns/resolver.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"math/rand"
 	"net"
+	"net/netip"
 	"strings"
 	"time"
 
@@ -33,14 +34,14 @@ type result struct {
 
 type Resolver struct {
 	ipv6                  bool
-	hosts                 *trie.DomainTrie
+	hosts                 *trie.DomainTrie[netip.Addr]
 	main                  []dnsClient
 	fallback              []dnsClient
 	fallbackDomainFilters []fallbackDomainFilter
 	fallbackIPFilters     []fallbackIPFilter
 	group                 singleflight.Group
-	lruCache              *cache.LruCache
-	policy                *trie.DomainTrie
+	lruCache              *cache.LruCache[string, *D.Msg]
+	policy                *trie.DomainTrie[*Policy]
 	proxyServer           []dnsClient
 }
 
@@ -103,7 +104,7 @@ func (r *Resolver) ExchangeContext(ctx context.Context, m *D.Msg) (msg *D.Msg, e
 	cache, expireTime, hit := r.lruCache.GetWithExpire(q.String())
 	if hit {
 		now := time.Now()
-		msg = cache.(*D.Msg).Copy()
+		msg = cache.Copy()
 		if expireTime.Before(now) {
 			setMsgTTL(msg, uint32(1)) // Continue fetch
 			go r.exchangeWithoutCache(ctx, m)
@@ -194,7 +195,8 @@ func (r *Resolver) matchPolicy(m *D.Msg) []dnsClient {
 		return nil
 	}
 
-	return record.Data.([]dnsClient)
+	p := record.Data
+	return p.GetData()
 }
 
 func (r *Resolver) shouldOnlyQueryFallback(m *D.Msg) bool {
@@ -329,20 +331,20 @@ type Config struct {
 	EnhancedMode   C.DNSMode
 	FallbackFilter FallbackFilter
 	Pool           *fakeip.Pool
-	Hosts          *trie.DomainTrie
+	Hosts          *trie.DomainTrie[netip.Addr]
 	Policy         map[string]NameServer
 }
 
 func NewResolver(config Config) *Resolver {
 	defaultResolver := &Resolver{
 		main:     transform(config.Default, nil),
-		lruCache: cache.NewLRUCache(cache.WithSize(4096), cache.WithStale(true)),
+		lruCache: cache.NewLRUCache[string, *D.Msg](cache.WithSize[string, *D.Msg](4096), cache.WithStale[string, *D.Msg](true)),
 	}
 
 	r := &Resolver{
 		ipv6:     config.IPv6,
 		main:     transform(config.Main, defaultResolver),
-		lruCache: cache.NewLRUCache(cache.WithSize(4096), cache.WithStale(true)),
+		lruCache: cache.NewLRUCache[string, *D.Msg](cache.WithSize[string, *D.Msg](4096), cache.WithStale[string, *D.Msg](true)),
 		hosts:    config.Hosts,
 	}
 
@@ -355,9 +357,9 @@ func NewResolver(config Config) *Resolver {
 	}
 
 	if len(config.Policy) != 0 {
-		r.policy = trie.New()
+		r.policy = trie.New[*Policy]()
 		for domain, nameserver := range config.Policy {
-			r.policy.Insert(domain, transform([]NameServer{nameserver}, defaultResolver))
+			r.policy.Insert(domain, NewPolicy(transform([]NameServer{nameserver}, defaultResolver)))
 		}
 	}
 

dns/util.go

@@ -5,6 +5,7 @@ import (
 	"crypto/tls"
 	"fmt"
 	"net"
+	"net/netip"
 	"time"
 
 	"github.com/Dreamacro/clash/common/cache"
@@ -16,7 +17,7 @@ import (
 	D "github.com/miekg/dns"
 )
 
-func putMsgToCache(c *cache.LruCache, key string, msg *D.Msg) {
+func putMsgToCache(c *cache.LruCache[string, *D.Msg], key string, msg *D.Msg) {
 	var ttl uint32
 	switch {
 	case len(msg.Answer) != 0:
@@ -114,6 +115,22 @@ func msgToIP(msg *D.Msg) []net.IP {
 	return ips
 }
 
+func ipToAddr(ip net.IP) netip.Addr {
+	if ip == nil {
+		return netip.Addr{}
+	}
+
+	l := len(ip)
+
+	if l == 4 {
+		return netip.AddrFrom4(*(*[4]byte)(ip))
+	} else if l == 16 {
+		return netip.AddrFrom16(*(*[16]byte)(ip))
+	} else {
+		return netip.Addr{}
+	}
+}
+
 type wrapPacketConn struct {
 	net.PacketConn
 	rAddr net.Addr

go.mod

@@ -3,33 +3,34 @@ module github.com/Dreamacro/clash
 go 1.18
 
 require (
-	github.com/Dreamacro/go-shadowsocks2 v0.1.7
+	github.com/Dreamacro/go-shadowsocks2 v0.1.8
 	github.com/dlclark/regexp2 v1.4.0
 	github.com/go-chi/chi/v5 v5.0.7
 	github.com/go-chi/cors v1.2.0
 	github.com/go-chi/render v1.0.1
 	github.com/gofrs/uuid v4.2.0+incompatible
 	github.com/gorilla/websocket v1.5.0
-	github.com/insomniacslk/dhcp v0.0.0-20220119180841-3c283ff8b7dd
-	github.com/lucas-clemente/quic-go v0.26.0
-	github.com/miekg/dns v1.1.47
+	github.com/insomniacslk/dhcp v0.0.0-20220405050111-12fbdcb11b41
+	github.com/lucas-clemente/quic-go v0.27.0
+	github.com/miekg/dns v1.1.48
 	github.com/oschwald/geoip2-golang v1.7.0
 	github.com/sirupsen/logrus v1.8.1
 	github.com/stretchr/testify v1.7.1
 	github.com/xtls/go v0.0.0-20210920065950-d4af136d3672
 	go.etcd.io/bbolt v1.3.6
 	go.uber.org/atomic v1.9.0
-	go.uber.org/automaxprocs v1.4.0
-	golang.org/x/crypto v0.0.0-20220321153916-2c7772ba3064
-	golang.org/x/net v0.0.0-20220325170049-de3da57026de
+	go.uber.org/automaxprocs v1.5.1
+	golang.org/x/crypto v0.0.0-20220411220226-7b82a4e95df4
+	golang.org/x/exp v0.0.0-20220414153411-bcd21879b8fd
+	golang.org/x/net v0.0.0-20220412020605-290c469a71a5
 	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
-	golang.org/x/sys v0.0.0-20220330033206-e17cdc41300f
-	golang.org/x/time v0.0.0-20220224211638-0e9765cccd65
-	golang.zx2c4.com/wireguard v0.0.0-20220318042302-193cf8d6a5d6
+	golang.org/x/sys v0.0.0-20220412071739-889880a91fd5
+	golang.org/x/time v0.0.0-20220411224347-583f2d630306
+	golang.zx2c4.com/wireguard v0.0.0-20220407013110-ef5c587f782d
 	golang.zx2c4.com/wireguard/windows v0.5.4-0.20220317000008-6432784c2469
 	google.golang.org/protobuf v1.28.0
 	gopkg.in/yaml.v2 v2.4.0
-	gvisor.dev/gvisor v0.0.0-20220326024801-5d1f3d24cb84
+	gvisor.dev/gvisor v0.0.0-20220412020520-6917e582612b
 )
 
 require (
@@ -50,10 +51,10 @@ require (
 	golang.org/x/mod v0.6.0-dev.0.20220106191415-9b9b3d81d5e3 // indirect
 	golang.org/x/text v0.3.8-0.20220124021120-d1c84af989ab // indirect
 	golang.org/x/tools v0.1.10 // indirect
-	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
+	golang.org/x/xerrors v0.0.0-20220411194840-2f41105eb62f // indirect
 	golang.zx2c4.com/wintun v0.0.0-20211104114900-415007cec224 // indirect
 	gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 // indirect
-	gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c // indirect
+	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
 )
 
 replace golang.zx2c4.com/wintun v0.0.0-20211104114900-415007cec224 => github.com/MetaCubeX/wintun-go v0.0.0-20220319102620-bbc5e6b2015e

go.sum

@@ -8,8 +8,8 @@ dmitri.shuralyov.com/service/change v0.0.0-20181023043359-a85b471d5412/go.mod h1
 dmitri.shuralyov.com/state v0.0.0-20180228185332-28bcc343414c/go.mod h1:0PRwlb0D6DFvNNtx+9ybjezNCa8XF0xaYcETyp6rHWU=
 git.apache.org/thrift.git v0.0.0-20180902110319-2566ecd5d999/go.mod h1:fPE2ZNJGynbRyZ4dJvy6G277gSllfV2HJqblrnkyeyg=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/Dreamacro/go-shadowsocks2 v0.1.7 h1:8CtbE1HoPPMfrQZGXmlluq6dO2lL31W6WRRE8fabc4Q=
-github.com/Dreamacro/go-shadowsocks2 v0.1.7/go.mod h1:8p5G4cAj5ZlXwUR+Ww63gfSikr8kvw8uw3TDwLAJpUc=
+github.com/Dreamacro/go-shadowsocks2 v0.1.8 h1:Ixejp5JscEc866gAvm/l6TFd7BOBvDviKgwb1quWw3g=
+github.com/Dreamacro/go-shadowsocks2 v0.1.8/go.mod h1:51y4Q6tJoCE7e8TmYXcQRqfoxPfE9Cvn79V6pB6Df7Y=
 github.com/MetaCubeX/wintun-go v0.0.0-20220319102620-bbc5e6b2015e h1:GRfT5Lf8HP7RNczKIwTYLoCh1PPuIs/sY9hj+W+3deg=
 github.com/MetaCubeX/wintun-go v0.0.0-20220319102620-bbc5e6b2015e/go.mod h1:ARUuShAtcziEJ/vnZ2hgoP+zc0J7Ukcca2S/NPDoQCc=
 github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239/go.mod h1:2FmKhYUyUczH0OGQWaF5ceTx0UBShxjsH6f8oGKYe2c=
@@ -88,8 +88,8 @@ github.com/gregjones/httpcache v0.0.0-20180305231024-9cad4c3443a7/go.mod h1:Fecb
 github.com/grpc-ecosystem/grpc-gateway v1.5.0/go.mod h1:RSKVYQBd5MCa4OVpNdGskqpgL2+G+NZTnrVHpWWfpdw=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
 github.com/hugelgupf/socketpair v0.0.0-20190730060125-05d35a94e714/go.mod h1:2Goc3h8EklBH5mspfHFxBnEoURQCGzQQH1ga9Myjvis=
-github.com/insomniacslk/dhcp v0.0.0-20220119180841-3c283ff8b7dd h1:efcJu2Vzz6DoSq245deWNzTz6l/gsqdphm3FjmI88/g=
-github.com/insomniacslk/dhcp v0.0.0-20220119180841-3c283ff8b7dd/go.mod h1:h+MxyHxRg9NH3terB1nfRIUaQEcI0XOVkdR9LNBlp8E=
+github.com/insomniacslk/dhcp v0.0.0-20220405050111-12fbdcb11b41 h1:Yg3n3AI7GoHnWt7dyjsLPU+TEuZfPAg0OdiA3MJUV6I=
+github.com/insomniacslk/dhcp v0.0.0-20220405050111-12fbdcb11b41/go.mod h1:h+MxyHxRg9NH3terB1nfRIUaQEcI0XOVkdR9LNBlp8E=
 github.com/jellevandenhooff/dkim v0.0.0-20150330215556-f50fe3d243e1/go.mod h1:E0B/fFc00Y+Rasa88328GlI/XbtyysCtTHZS8h7IrBU=
 github.com/jsimonetti/rtnetlink v0.0.0-20190606172950-9527aa82566a/go.mod h1:Oz+70psSo5OFh8DBl0Zv2ACw7Esh6pPUphlvZG9x7uw=
 github.com/jsimonetti/rtnetlink v0.0.0-20200117123717-f846d4f6c1f4/go.mod h1:WGuG/smIU4J/54PblvSbh+xvCZmpJnFgr3ds6Z55XMQ=
@@ -106,8 +106,8 @@ github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/pty v1.1.3/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
-github.com/lucas-clemente/quic-go v0.26.0 h1:ALBQXr9UJ8A1LyzvceX4jd9QFsHvlI0RR6BkV16o00A=
-github.com/lucas-clemente/quic-go v0.26.0/go.mod h1:AzgQoPda7N+3IqMMMkywBKggIFo2KT6pfnlrQ2QieeI=
+github.com/lucas-clemente/quic-go v0.27.0 h1:v6WY87q9zD4dKASbG8hy/LpzAVNzEQzw8sEIeloJsc4=
+github.com/lucas-clemente/quic-go v0.27.0/go.mod h1:AzgQoPda7N+3IqMMMkywBKggIFo2KT6pfnlrQ2QieeI=
 github.com/lunixbochs/vtclean v1.0.0/go.mod h1:pHhQNgMf3btfWnGBVipUOjRYhoOsdGqdm/+2c2E2WMI=
 github.com/mailru/easyjson v0.0.0-20190312143242-1de009706dbe/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
 github.com/marten-seemann/qpack v0.2.1/go.mod h1:F7Gl5L1jIgN1D11ucXefiuJS9UMVP2opoCp2jDKb7wc=
@@ -126,8 +126,8 @@ github.com/mdlayher/netlink v1.1.1/go.mod h1:WTYpFb/WTvlRJAyKhZL5/uy69TDDpHHu2VZ
 github.com/mdlayher/raw v0.0.0-20190606142536-fef19f00fc18/go.mod h1:7EpbotpCmVZcu+KCX4g9WaRNuu11uyhiW7+Le1dKawg=
 github.com/mdlayher/raw v0.0.0-20191009151244-50f2db8cc065/go.mod h1:7EpbotpCmVZcu+KCX4g9WaRNuu11uyhiW7+Le1dKawg=
 github.com/microcosm-cc/bluemonday v1.0.1/go.mod h1:hsXNsILzKxV+sX77C5b8FSuKF00vh2OMYv+xgHpAMF4=
-github.com/miekg/dns v1.1.47 h1:J9bWiXbqMbnZPcY8Qi2E3EWIBsIm6MZzzJB9VRg5gL8=
-github.com/miekg/dns v1.1.47/go.mod h1:e3IlAVfNqAllflbibAZEWOXOQ+Ynzk/dDozDxY7XnME=
+github.com/miekg/dns v1.1.48 h1:Ucfr7IIVyMBz4lRE8qmGUuZ4Wt3/ZGu9hmcMT3Uu4tQ=
+github.com/miekg/dns v1.1.48/go.mod h1:e3IlAVfNqAllflbibAZEWOXOQ+Ynzk/dDozDxY7XnME=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/neelance/astrewrite v0.0.0-20160511093645-99348263ae86/go.mod h1:kHJEU3ofeGjhHklVoIGuVj85JJwZ6kWPaJwCIxgnFmo=
@@ -154,6 +154,7 @@ github.com/oschwald/maxminddb-golang v1.9.0/go.mod h1:TK+s/Z2oZq0rSl4PSeAEoP0bgm
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/prashantv/gostub v1.1.0 h1:BTyx3RfQjRHnUWaGF9oQos79AlQ5k8WNktv7VGvVH4g=
 github.com/prometheus/client_golang v0.8.0/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
 github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
 github.com/prometheus/common v0.0.0-20180801064454-c7de2306084e/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
@@ -191,7 +192,6 @@ github.com/sourcegraph/syntaxhighlight v0.0.0-20170531221838-bd320f5d308e/go.mod
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.1 h1:5TQK59W5E3v0r2duFAb7P95B6hEeOyEnHRa8MjYSMTY=
@@ -211,8 +211,8 @@ go.etcd.io/bbolt v1.3.6/go.mod h1:qXsaaIqmgQH0T+OPdb99Bf+PKfBBQVAdyD6TY9G8XM4=
 go.opencensus.io v0.18.0/go.mod h1:vKdFvxhtzZ9onBp9VKHK8z/sRpBMnKAsufL7wlDrCOA=
 go.uber.org/atomic v1.9.0 h1:ECmE8Bn/WFTYwEW/bpKD3M8VtR/zQVbavAoalC1PYyE=
 go.uber.org/atomic v1.9.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
-go.uber.org/automaxprocs v1.4.0 h1:CpDZl6aOlLhReez+8S3eEotD7Jx0Os++lemPlMULQP0=
-go.uber.org/automaxprocs v1.4.0/go.mod h1:/mTEdr7LvHhs0v7mjdxDreTz1OG5zdZGqgOnhWiR/+Q=
+go.uber.org/automaxprocs v1.5.1 h1:e1YG66Lrk73dn4qhg8WFSvhF0JuFQF0ERIp4rpuV8Qk=
+go.uber.org/automaxprocs v1.5.1/go.mod h1:BF4eumQw0P9GtnuxxovUd06vwm1o18oMzFtK66vU6XU=
 go4.org v0.0.0-20180809161055-417644f6feb5/go.mod h1:MkTOUMDaeVYJUOUsaDXIhWPZYa1yOyC1qaOBpL57BhE=
 golang.org/x/build v0.0.0-20190111050920-041ab4dc3f9d/go.mod h1:OWs+y06UdEOHN4y+MfF/py+xQ/tYqIWW03b70/CG9Rw=
 golang.org/x/crypto v0.0.0-20181030102418-4d3f4d9ffa16/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
@@ -221,9 +221,8 @@ golang.org/x/crypto v0.0.0-20190313024323-a1f597ede03a/go.mod h1:djNgcEr1/C05ACk
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200221231518-2aa609cf4a9d/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/crypto v0.0.0-20210317152858-513c2a44f670/go.mod h1:T9bdIzuCu7OtxOm1hfPfRQxPLYneinmdGuTeoZ9dtd4=
-golang.org/x/crypto v0.0.0-20220321153916-2c7772ba3064 h1:S25/rfnfsMVgORT4/J61MJ7rdyseOZOyvLIrZEZ7s6s=
-golang.org/x/crypto v0.0.0-20220321153916-2c7772ba3064/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
+golang.org/x/crypto v0.0.0-20220411220226-7b82a4e95df4 h1:kUhD7nTDoI3fVd9G4ORWrbV5NY0liEs/Jg2pv5f+bBA=
+golang.org/x/crypto v0.0.0-20220411220226-7b82a4e95df4/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/lint v0.0.0-20180702182130-06c8688daad7/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
@@ -253,12 +252,11 @@ golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81R
 golang.org/x/net v0.0.0-20201010224723-4f7140c49acb/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
 golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
 golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
-golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
 golang.org/x/net v0.0.0-20210428140749-89ef3d95e781/go.mod h1:OJAsFXCWl8Ukc7SiCT/9KSuxbyM7479/AVlXFRxuMCk=
 golang.org/x/net v0.0.0-20210726213435-c6fcb2dbf985/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
-golang.org/x/net v0.0.0-20220325170049-de3da57026de h1:pZB1TWnKi+o4bENlbzAgLrEbY4RMYmUIRobMcSmfeYc=
-golang.org/x/net v0.0.0-20220325170049-de3da57026de/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
+golang.org/x/net v0.0.0-20220412020605-290c469a71a5 h1:bRb386wvrE+oBNdF1d/Xh9mQrfQ4ecYhW5qJ5GvTGT4=
+golang.org/x/net v0.0.0-20220412020605-290c469a71a5/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20181017192945-9dcd33a902f4/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20181203162652-d668ce993890/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
@@ -304,8 +302,8 @@ golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20210525143221-35b2ab0089ea/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220330033206-e17cdc41300f h1:rlezHXNlxYWvBCzNses9Dlc7nGFaNMJeqLolcmQSSZY=
-golang.org/x/sys v0.0.0-20220330033206-e17cdc41300f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220412071739-889880a91fd5 h1:NubxfvTRuNb4RVzWrIDAUzUvREH1HkCD4JjyQTSG9As=
+golang.org/x/sys v0.0.0-20220412071739-889880a91fd5/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@@ -316,8 +314,8 @@ golang.org/x/text v0.3.8-0.20220124021120-d1c84af989ab h1:eHo2TTVBaAPw9lDGK2Gb9G
 golang.org/x/text v0.3.8-0.20220124021120-d1c84af989ab/go.mod h1:EFNZuWvGYxIRUEX+K8UmCFwYmZjqcrnq15ZuVldZkZ0=
 golang.org/x/time v0.0.0-20180412165947-fbb02b2291d2/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
-golang.org/x/time v0.0.0-20220224211638-0e9765cccd65 h1:M73Iuj3xbbb9Uk1DYhzydthsj6oOd6l9bpuFcNoUvTs=
-golang.org/x/time v0.0.0-20220224211638-0e9765cccd65/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
+golang.org/x/time v0.0.0-20220411224347-583f2d630306 h1:+gHMid33q6pen7kv9xvT+JRinntgeXO2AeZVd0AWD3w=
+golang.org/x/time v0.0.0-20220411224347-583f2d630306/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/tools v0.0.0-20180828015842-6cd1fcedba52/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20181030000716-a0a13e073c7b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
@@ -334,10 +332,11 @@ golang.org/x/tools v0.1.10/go.mod h1:Uh6Zz+xoGYZom868N8YTex3t7RhtHDBrE8Gzo9bV56E
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.zx2c4.com/wireguard v0.0.0-20220318042302-193cf8d6a5d6 h1:kgBK1EGuTIYbwoKROmsoV0FQp08gnCcVa110A4Unqhk=
-golang.zx2c4.com/wireguard v0.0.0-20220318042302-193cf8d6a5d6/go.mod h1:bVQfyl2sCM/QIIGHpWbFGfHPuDvqnCNkT6MQLTCjO/U=
+golang.org/x/xerrors v0.0.0-20220411194840-2f41105eb62f h1:GGU+dLjvlC3qDwqYgL6UgRmHXhOOgns0bZu2Ty5mm6U=
+golang.org/x/xerrors v0.0.0-20220411194840-2f41105eb62f/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.zx2c4.com/wireguard v0.0.0-20220407013110-ef5c587f782d h1:q4JksJ2n0fmbXC0Aj0eOs6E0AcPqnKglxWXWFqGD6x0=
+golang.zx2c4.com/wireguard v0.0.0-20220407013110-ef5c587f782d/go.mod h1:bVQfyl2sCM/QIIGHpWbFGfHPuDvqnCNkT6MQLTCjO/U=
 golang.zx2c4.com/wireguard/windows v0.5.4-0.20220317000008-6432784c2469 h1:SEYkJAIuYAsSAPkCffOiYLtq5brBDSI+L0mRjSsvSTY=
 golang.zx2c4.com/wireguard/windows v0.5.4-0.20220317000008-6432784c2469/go.mod h1:1CeiatTZwcwSFA3cAtMm8CQoroviTldnxd7DOgM/vI4=
 google.golang.org/api v0.0.0-20180910000450-7ca32eb868bf/go.mod h1:4mhQ8q/RsB7i+udVvVy5NUi08OU8ZlA0gRVgrF7VFY0=
@@ -379,11 +378,12 @@ gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 grpc.go4.org v0.0.0-20170609214715-11d0a25b4919/go.mod h1:77eQGdRu53HpSqPFJFmuJdjuHRquDANNeA4x7B8WQ9o=
-gvisor.dev/gvisor v0.0.0-20220326024801-5d1f3d24cb84 h1:nENO+rT8Nx+Vtp/VK+K7g9VpHdvJwJYCFgdN5yaoAzA=
-gvisor.dev/gvisor v0.0.0-20220326024801-5d1f3d24cb84/go.mod h1:tWwEcFvJavs154OdjFCw78axNrsDlz4Zh8jvPqwcpGI=
+gvisor.dev/gvisor v0.0.0-20220412020520-6917e582612b h1:JW1pUBe6A3H+b0B9DwEOcfK+TLS/04A3A9cettPpfV0=
+gvisor.dev/gvisor v0.0.0-20220412020520-6917e582612b/go.mod h1:tWwEcFvJavs154OdjFCw78axNrsDlz4Zh8jvPqwcpGI=
 honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

hub/executor/executor.go

@@ -3,6 +3,7 @@ package executor
 import (
 	"fmt"
 	"net"
+	"net/netip"
 	"os"
 	"runtime"
 	"strconv"
@@ -17,6 +18,7 @@ import (
 	"github.com/Dreamacro/clash/component/profile"
 	"github.com/Dreamacro/clash/component/profile/cachefile"
 	"github.com/Dreamacro/clash/component/resolver"
+	SNI "github.com/Dreamacro/clash/component/sniffer"
 	"github.com/Dreamacro/clash/component/trie"
 	"github.com/Dreamacro/clash/config"
 	C "github.com/Dreamacro/clash/constant"
@@ -75,6 +77,7 @@ func ApplyConfig(cfg *config.Config, force bool) {
 	updateUsers(cfg.Users)
 	updateProxies(cfg.Proxies, cfg.Providers)
 	updateRules(cfg.Rules, cfg.RuleProviders)
+	updateSniffer(cfg.Sniffer)
 	updateDNS(cfg.DNS, cfg.Tun)
 	updateGeneral(cfg.General, force)
 	updateIPTables(cfg)
@@ -169,7 +172,7 @@ func updateDNS(c *config.DNS, t *config.Tun) {
 	}
 }
 
-func updateHosts(tree *trie.DomainTrie) {
+func updateHosts(tree *trie.DomainTrie[netip.Addr]) {
 	resolver.DefaultHosts = tree
 }
 
@@ -217,6 +220,26 @@ func updateTun(tun *config.Tun, dns *config.DNS) {
 	P.ReCreateTun(tun, dns, tunnel.TCPIn(), tunnel.UDPIn())
 }
 
+func updateSniffer(sniffer *config.Sniffer) {
+	if sniffer.Enable {
+		dispatcher, err := SNI.NewSnifferDispatcher(sniffer.Sniffers, sniffer.ForceDomain, sniffer.SkipSNI, sniffer.Ports)
+		if err != nil {
+			log.Warnln("initial sniffer failed, err:%v", err)
+		}
+
+		tunnel.UpdateSniffer(dispatcher)
+		log.Infoln("Sniffer is loaded and working")
+	} else {
+		dispatcher, err := SNI.NewCloseSnifferDispatcher()
+		if err != nil {
+			log.Warnln("initial sniffer failed, err:%v", err)
+		}
+
+		tunnel.UpdateSniffer(dispatcher)
+		log.Infoln("Sniffer is closed")
+	}
+}
+
 func updateGeneral(general *config.General, force bool) {
 	log.SetLevel(general.LogLevel)
 	tunnel.SetMode(general.Mode)

listener/http/proxy.go

@@ -15,7 +15,7 @@ import (
 	"github.com/Dreamacro/clash/log"
 )
 
-func HandleConn(c net.Conn, in chan<- C.ConnContext, cache *cache.Cache) {
+func HandleConn(c net.Conn, in chan<- C.ConnContext, cache *cache.Cache[string, bool]) {
 	client := newClient(c.RemoteAddr(), in)
 	defer client.CloseIdleConnections()
 
@@ -98,7 +98,7 @@ func HandleConn(c net.Conn, in chan<- C.ConnContext, cache *cache.Cache) {
 	conn.Close()
 }
 
-func authenticate(request *http.Request, cache *cache.Cache) *http.Response {
+func authenticate(request *http.Request, cache *cache.Cache[string, bool]) *http.Response {
 	authenticator := authStore.Authenticator()
 	if authenticator != nil {
 		credential := parseBasicProxyAuthorization(request)
@@ -108,13 +108,13 @@ func authenticate(request *http.Request, cache *cache.Cache) *http.Response {
 			return resp
 		}
 
-		var authed any
-		if authed = cache.Get(credential); authed == nil {
+		var authed bool
+		if authed = cache.Get(credential); !authed {
 			user, pass, err := decodeBasicProxyAuthorization(credential)
 			authed = err == nil && authenticator.Verify(user, pass)
 			cache.Put(credential, authed, time.Minute)
 		}
-		if !authed.(bool) {
+		if !authed {
 			log.Infoln("Auth failed from %s", request.RemoteAddr)
 
 			return responseWith(request, http.StatusForbidden)

listener/http/server.go

@@ -40,9 +40,9 @@ func NewWithAuthenticate(addr string, in chan<- C.ConnContext, authenticate bool
 		return nil, err
 	}
 
-	var c *cache.Cache
+	var c *cache.Cache[string, bool]
 	if authenticate {
-		c = cache.New(time.Second * 30)
+		c = cache.New[string, bool](time.Second * 30)
 	}
 
 	hl := &Listener{

listener/http/utils.go

@@ -40,7 +40,7 @@ func removeExtraHTTPHostPort(req *http.Request) {
 		host = req.URL.Host
 	}
 
-	if pHost, port, err := net.SplitHostPort(host); err == nil && port == "80" {
+	if pHost, port, err := net.SplitHostPort(host); err == nil && (port == "80" || port == "443") {
 		host = pHost
 	}
 

listener/mixed/mixed.go

@@ -16,7 +16,7 @@ import (
 type Listener struct {
 	listener net.Listener
 	addr     string
-	cache    *cache.Cache
+	cache    *cache.Cache[string, bool]
 	closed   bool
 }
 
@@ -45,7 +45,7 @@ func New(addr string, in chan<- C.ConnContext) (*Listener, error) {
 	ml := &Listener{
 		listener: l,
 		addr:     addr,
-		cache:    cache.New(30 * time.Second),
+		cache:    cache.New[string, bool](30 * time.Second),
 	}
 	go func() {
 		for {
@@ -63,7 +63,7 @@ func New(addr string, in chan<- C.ConnContext) (*Listener, error) {
 	return ml, nil
 }
 
-func handleConn(conn net.Conn, in chan<- C.ConnContext, cache *cache.Cache) {
+func handleConn(conn net.Conn, in chan<- C.ConnContext, cache *cache.Cache[string, bool]) {
 	conn.(*net.TCPConn).SetKeepAlive(true)
 
 	bufConn := N.NewBufferedConn(conn)

listener/tun/device/device.go

@@ -29,7 +29,4 @@ type Device interface {
 
 	// UseIOBased work for other ip stack
 	UseIOBased() error
-
-	// Wait waits for the device to close.
-	Wait()
 }

listener/tun/device/iobased/endpoint.go

@@ -36,6 +36,9 @@ type Endpoint struct {
 
 	// once is used to perform the init action once when attaching.
 	once sync.Once
+
+	// wg keeps track of running goroutines.
+	wg sync.WaitGroup
 }
 
 // New returns stack.LinkEndpoint(.*Endpoint) and error.
@@ -60,19 +63,26 @@ func New(rw io.ReadWriter, mtu uint32, offset int) (*Endpoint, error) {
 	}, nil
 }
 
-func (e *Endpoint) Close() {
-	e.Endpoint.Close()
+func (e *Endpoint) Wait() {
+	e.wg.Wait()
 }
 
 // Attach launches the goroutine that reads packets from io.Reader and
 // dispatches them via the provided dispatcher.
 func (e *Endpoint) Attach(dispatcher stack.NetworkDispatcher) {
+	e.Endpoint.Attach(dispatcher)
 	e.once.Do(func() {
 		ctx, cancel := context.WithCancel(context.Background())
-		go e.dispatchLoop(cancel)
-		go e.outboundLoop(ctx)
+		e.wg.Add(2)
+		go func() {
+			e.outboundLoop(ctx)
+			e.wg.Done()
+		}()
+		go func() {
+			e.dispatchLoop(cancel)
+			e.wg.Done()
+		}()
 	})
-	e.Endpoint.Attach(dispatcher)
 }
 
 // dispatchLoop dispatches packets to upper layer.
@@ -81,14 +91,19 @@ func (e *Endpoint) dispatchLoop(cancel context.CancelFunc) {
 	// gracefully after (*Endpoint).dispatchLoop(context.CancelFunc) returns.
 	defer cancel()
 
+	mtu := int(e.mtu)
 	for {
-		data := make([]byte, int(e.mtu))
+		data := make([]byte, mtu)
 
 		n, err := e.rw.Read(data)
 		if err != nil {
 			break
 		}
 
+		if n == 0 || n > mtu {
+			continue
+		}
+
 		if !e.IsAttached() {
 			continue /* unattached, drop packet */
 		}

listener/tun/device/tun/tun_wireguard.go

@@ -32,15 +32,6 @@ func Open(name string, mtu uint32) (_ device.Device, err error) {
 		}
 	}()
 
-	var (
-		offset     = 4 /* 4 bytes TUN_PI */
-		defaultMTU = 1500
-	)
-	if runtime.GOOS == "windows" {
-		offset = 0
-		defaultMTU = 0 /* auto */
-	}
-
 	t := &TUN{
 		name:   name,
 		mtu:    mtu,
@@ -101,9 +92,11 @@ func (t *TUN) Write(packet []byte) (int, error) {
 }
 
 func (t *TUN) Close() error {
-	if t.Endpoint != nil {
-		t.Endpoint.Close()
+	defer func(ep *iobased.Endpoint) {
+		if ep != nil {
+			ep.Close()
 		}
+	}(t.Endpoint)
 	return t.nt.Close()
 }
 

listener/tun/device/tun/tun_wireguard_unix.go

@@ -0,0 +1,8 @@
+//go:build !linux && !windows
+
+package tun
+
+const (
+	offset     = 4 /* 4 bytes TUN_PI */
+	defaultMTU = 1500
+)

listener/tun/device/tun/tun_wireguard_windows.go

@@ -5,6 +5,11 @@ import (
 	"golang.zx2c4.com/wireguard/tun"
 )
 
+const (
+	offset     = 0
+	defaultMTU = 0 /* auto */
+)
+
 func init() {
 	guid, _ := windows.GUIDFromString("{330EAEF8-7578-5DF2-D97B-8DADC0EA85CB}")
 

listener/tun/ipstack/gvisor/handler.go

@@ -27,7 +27,7 @@ type GVHandler struct {
 func (gh *GVHandler) HandleTCP(tunConn adapter.TCPConn) {
 	id := tunConn.ID()
 
-	rAddr := &net.UDPAddr{
+	rAddr := &net.TCPAddr{
 		IP:   net.IP(id.LocalAddress),
 		Port: int(id.LocalPort),
 		Zone: "",

listener/tun/ipstack/gvisor/option/option.go

@@ -37,7 +37,7 @@ const (
 
 	// tcpModerateReceiveBufferEnabled is the value used by stack to
 	// enable or disable tcp receive buffer auto-tuning option.
-	tcpModerateReceiveBufferEnabled = true
+	tcpModerateReceiveBufferEnabled = false
 
 	// tcpSACKEnabled is the value used by stack to enable or disable
 	// tcp selective ACK.
@@ -47,14 +47,18 @@ const (
 	tcpRecovery = tcpip.TCPRACKLossDetection
 
 	// tcpMinBufferSize is the smallest size of a send/recv buffer.
-	tcpMinBufferSize = tcp.MinBufferSize // 4 KiB
+	tcpMinBufferSize = tcp.MinBufferSize
 
 	// tcpMaxBufferSize is the maximum permitted size of a send/recv buffer.
-	tcpMaxBufferSize = tcp.MaxBufferSize // 4 MiB
+	tcpMaxBufferSize = tcp.MaxBufferSize
 
-	// tcpDefaultBufferSize is the default size of the send/recv buffer for
+	// tcpDefaultBufferSize is the default size of the send buffer for
 	// a transport endpoint.
-	tcpDefaultBufferSize = 212 << 10 // 212 KiB
+	tcpDefaultSendBufferSize = tcp.DefaultSendBufferSize
+
+	// tcpDefaultReceiveBufferSize is the default size of the receive buffer
+	// for a transport endpoint.
+	tcpDefaultReceiveBufferSize = tcp.DefaultReceiveBufferSize
 )
 
 type Option func(*stack.Stack) error
@@ -74,7 +78,8 @@ func WithDefault() Option {
 			// in too large buffers.
 			//
 			// Ref: https://github.com/cloudflare/slirpnetstack/blob/master/stack.go
-			WithTCPBufferSizeRange(tcpMinBufferSize, tcpDefaultBufferSize, tcpMaxBufferSize),
+			WithTCPSendBufferSizeRange(tcpMinBufferSize, tcpDefaultSendBufferSize, tcpMaxBufferSize),
+			WithTCPReceiveBufferSizeRange(tcpMinBufferSize, tcpDefaultReceiveBufferSize, tcpMaxBufferSize),
 
 			WithTCPCongestionControl(tcpCongestionControlAlgorithm),
 			WithTCPDelay(tcpDelayEnabled),
@@ -154,17 +159,46 @@ func WithICMPLimit(limit rate.Limit) Option {
 	}
 }
 
-// WithTCPBufferSizeRange sets the receive and send buffer size range for TCP.
-func WithTCPBufferSizeRange(a, b, c int) Option {
+// WithTCPSendBufferSize sets default the send buffer size for TCP.
+func WithTCPSendBufferSize(size int) Option {
+	return func(s *stack.Stack) error {
+		sndOpt := tcpip.TCPSendBufferSizeRangeOption{Min: tcpMinBufferSize, Default: size, Max: tcpMaxBufferSize}
+		if err := s.SetTransportProtocolOption(tcp.ProtocolNumber, &sndOpt); err != nil {
+			return fmt.Errorf("set TCP send buffer size range: %s", err)
+		}
+		return nil
+	}
+}
+
+// WithTCPSendBufferSizeRange sets the send buffer size range for TCP.
+func WithTCPSendBufferSizeRange(a, b, c int) Option {
+	return func(s *stack.Stack) error {
+		sndOpt := tcpip.TCPSendBufferSizeRangeOption{Min: a, Default: b, Max: c}
+		if err := s.SetTransportProtocolOption(tcp.ProtocolNumber, &sndOpt); err != nil {
+			return fmt.Errorf("set TCP send buffer size range: %s", err)
+		}
+		return nil
+	}
+}
+
+// WithTCPReceiveBufferSize sets the default receive buffer size for TCP.
+func WithTCPReceiveBufferSize(size int) Option {
+	return func(s *stack.Stack) error {
+		rcvOpt := tcpip.TCPReceiveBufferSizeRangeOption{Min: tcpMinBufferSize, Default: size, Max: tcpMaxBufferSize}
+		if err := s.SetTransportProtocolOption(tcp.ProtocolNumber, &rcvOpt); err != nil {
+			return fmt.Errorf("set TCP receive buffer size range: %s", err)
+		}
+		return nil
+	}
+}
+
+// WithTCPReceiveBufferSizeRange sets the receive buffer size range for TCP.
+func WithTCPReceiveBufferSizeRange(a, b, c int) Option {
 	return func(s *stack.Stack) error {
 		rcvOpt := tcpip.TCPReceiveBufferSizeRangeOption{Min: a, Default: b, Max: c}
 		if err := s.SetTransportProtocolOption(tcp.ProtocolNumber, &rcvOpt); err != nil {
 			return fmt.Errorf("set TCP receive buffer size range: %s", err)
 		}
-		sndOpt := tcpip.TCPSendBufferSizeRangeOption{Min: a, Default: b, Max: c}
-		if err := s.SetTransportProtocolOption(tcp.ProtocolNumber, &sndOpt); err != nil {
-			return fmt.Errorf("set TCP send buffer size range: %s", err)
-		}
 		return nil
 	}
 }

listener/tun/ipstack/gvisor/stack.go

@@ -25,7 +25,6 @@ func (s *gvStack) Close() error {
 	var err error
 	if s.device != nil {
 		err = s.device.Close()
-		s.device.Wait()
 	}
 	if s.Stack != nil {
 		s.Stack.Close()

listener/tun/ipstack/gvisor/tcp.go

@@ -1,14 +1,15 @@
 package gvisor
 
 import (
-	"fmt"
 	"time"
 
 	"github.com/Dreamacro/clash/listener/tun/ipstack/gvisor/adapter"
 	"github.com/Dreamacro/clash/listener/tun/ipstack/gvisor/option"
+	"github.com/Dreamacro/clash/log"
 
 	"gvisor.dev/gvisor/pkg/tcpip"
 	"gvisor.dev/gvisor/pkg/tcpip/adapters/gonet"
+	"gvisor.dev/gvisor/pkg/tcpip/header"
 	"gvisor.dev/gvisor/pkg/tcpip/stack"
 	"gvisor.dev/gvisor/pkg/tcpip/transport/tcp"
 	"gvisor.dev/gvisor/pkg/waiter"
@@ -43,8 +44,21 @@ const (
 func withTCPHandler(handle adapter.TCPHandleFunc) option.Option {
 	return func(s *stack.Stack) error {
 		tcpForwarder := tcp.NewForwarder(s, defaultWndSize, maxConnAttempts, func(r *tcp.ForwarderRequest) {
-			var wq waiter.Queue
-			ep, err := r.CreateEndpoint(&wq)
+			var (
+				wq  waiter.Queue
+				ep  tcpip.Endpoint
+				err tcpip.Error
+				id  = r.ID()
+			)
+
+			defer func() {
+				if err != nil {
+					log.Warnln("[STACK] forward tcp request %s:%d->%s:%d: %s", id.RemoteAddress, id.RemotePort, id.LocalAddress, id.LocalPort, err)
+				}
+			}()
+
+			// Perform a TCP three-way handshake.
+			ep, err = r.CreateEndpoint(&wq)
 			if err != nil {
 				// RST: prevent potential half-open TCP connection leak.
 				r.Complete(true)
@@ -52,11 +66,11 @@ func withTCPHandler(handle adapter.TCPHandleFunc) option.Option {
 			}
 			defer r.Complete(false)
 
-			setKeepalive(ep)
+			err = setSocketOptions(s, ep)
 
 			conn := &tcpConn{
 				TCPConn: gonet.NewTCPConn(&wq, ep),
-				id:      r.ID(),
+				id:      id,
 			}
 			handle(conn)
 		})
@@ -65,21 +79,34 @@ func withTCPHandler(handle adapter.TCPHandleFunc) option.Option {
 	}
 }
 
-func setKeepalive(ep tcpip.Endpoint) error {
+func setSocketOptions(s *stack.Stack, ep tcpip.Endpoint) tcpip.Error {
+	{ /* TCP keepalive options */
 		ep.SocketOptions().SetKeepAlive(true)
 
 		idle := tcpip.KeepaliveIdleOption(tcpKeepaliveIdle)
 		if err := ep.SetSockOpt(&idle); err != nil {
-		return fmt.Errorf("set keepalive idle: %s", err)
+			return err
 		}
 
 		interval := tcpip.KeepaliveIntervalOption(tcpKeepaliveInterval)
 		if err := ep.SetSockOpt(&interval); err != nil {
-		return fmt.Errorf("set keepalive interval: %s", err)
+			return err
 		}
 
 		if err := ep.SetSockOptInt(tcpip.KeepaliveCountOption, tcpKeepaliveCount); err != nil {
-		return fmt.Errorf("set keepalive count: %s", err)
+			return err
+		}
+	}
+	{ /* TCP recv/send buffer size */
+		var ss tcpip.TCPSendBufferSizeRangeOption
+		if err := s.TransportProtocolOption(header.TCPProtocolNumber, &ss); err == nil {
+			ep.SocketOptions().SetReceiveBufferSize(int64(ss.Default), false)
+		}
+
+		var rs tcpip.TCPReceiveBufferSizeRangeOption
+		if err := s.TransportProtocolOption(header.TCPProtocolNumber, &rs); err == nil {
+			ep.SocketOptions().SetReceiveBufferSize(int64(rs.Default), false)
+		}
 	}
 	return nil
 }

listener/tun/ipstack/gvisor/udp.go

@@ -6,6 +6,7 @@ import (
 	"github.com/Dreamacro/clash/common/pool"
 	"github.com/Dreamacro/clash/listener/tun/ipstack/gvisor/adapter"
 	"github.com/Dreamacro/clash/listener/tun/ipstack/gvisor/option"
+	"github.com/Dreamacro/clash/log"
 
 	"gvisor.dev/gvisor/pkg/tcpip/adapters/gonet"
 	"gvisor.dev/gvisor/pkg/tcpip/stack"
@@ -16,16 +17,19 @@ import (
 func withUDPHandler(handle adapter.UDPHandleFunc) option.Option {
 	return func(s *stack.Stack) error {
 		udpForwarder := udp.NewForwarder(s, func(r *udp.ForwarderRequest) {
-			var wq waiter.Queue
+			var (
+				wq waiter.Queue
+				id = r.ID()
+			)
 			ep, err := r.CreateEndpoint(&wq)
 			if err != nil {
-				// TODO: handler errors in the future.
+				log.Warnln("[STACK] udp forwarder request %s:%d->%s:%d: %s", id.RemoteAddress, id.RemotePort, id.LocalAddress, id.LocalPort, err)
 				return
 			}
 
 			conn := &udpConn{
 				UDPConn: gonet.NewUDPConn(s, &wq, ep),
-				id:      r.ID(),
+				id:      id,
 			}
 			handle(conn)
 		})
@@ -54,7 +58,7 @@ func (c *packet) Data() []byte {
 }
 
 // WriteBack write UDP packet with source(ip, port) = `addr`
-func (c *packet) WriteBack(b []byte, addr net.Addr) (n int, err error) {
+func (c *packet) WriteBack(b []byte, _ net.Addr) (n int, err error) {
 	return c.pc.WriteTo(b, c.rAddr)
 }
 
@@ -64,5 +68,5 @@ func (c *packet) LocalAddr() net.Addr {
 }
 
 func (c *packet) Drop() {
-	pool.Put(c.payload)
+	_ = pool.Put(c.payload)
 }

listener/tun/ipstack/system/stack.go

@@ -17,6 +17,7 @@ import (
 	"github.com/Dreamacro/clash/listener/tun/ipstack"
 	D "github.com/Dreamacro/clash/listener/tun/ipstack/commons"
 	"github.com/Dreamacro/clash/listener/tun/ipstack/system/mars"
+	"github.com/Dreamacro/clash/listener/tun/ipstack/system/mars/nat"
 	"github.com/Dreamacro/clash/log"
 	"github.com/Dreamacro/clash/transport/socks5"
 )
@@ -24,15 +25,21 @@ import (
 type sysStack struct {
 	stack  io.Closer
 	device device.Device
+
+	closed bool
 }
 
-func (s sysStack) Close() error {
-	if s.stack != nil {
-		_ = s.stack.Close()
-	}
+func (s *sysStack) Close() error {
+	defer func() {
 		if s.device != nil {
 			_ = s.device.Close()
 		}
+	}()
+
+	s.closed = true
+	if s.stack != nil {
+		return s.stack.Close()
+	}
 	return nil
 }
 
@@ -49,17 +56,25 @@ func New(device device.Device, dnsHijack []netip.AddrPort, tunAddress netip.Pref
 		return nil, err
 	}
 
+	ipStack := &sysStack{stack: stack, device: device}
+
 	dnsAddr := dnsHijack
 
 	tcp := func() {
-		defer stack.TCP().Close()
+		defer func(tcp *nat.TCP) {
+			_ = tcp.Close()
+		}(stack.TCP())
+
 		defer log.Debugln("TCP: closed")
 
-		for stack.TCP().SetDeadline(time.Time{}) == nil {
+		for !ipStack.closed {
+			if err = stack.TCP().SetDeadline(time.Time{}); err != nil {
+				break
+			}
+
 			conn, err := stack.TCP().Accept()
 			if err != nil {
 				log.Debugln("Accept connection: %v", err)
-
 				continue
 			}
 
@@ -73,13 +88,19 @@ func New(device device.Device, dnsHijack []netip.AddrPort, tunAddress netip.Pref
 				go func() {
 					log.Debugln("[TUN] hijack dns tcp: %s", rAddrPort.String())
 
-					defer conn.Close()
+					defer func(conn net.Conn) {
+						_ = conn.Close()
+					}(conn)
 
 					buf := pool.Get(pool.UDPBufferSize)
-					defer pool.Put(buf)
+					defer func(buf []byte) {
+						_ = pool.Put(buf)
+					}(buf)
 
 					for {
-						conn.SetReadDeadline(time.Now().Add(C.DefaultTCPTimeout))
+						if err = conn.SetReadDeadline(time.Now().Add(C.DefaultTCPTimeout)); err != nil {
+							break
+						}
 
 						length := uint16(0)
 						if err := binary.Read(conn, binary.BigEndian, &length); err != nil {
@@ -123,10 +144,13 @@ func New(device device.Device, dnsHijack []netip.AddrPort, tunAddress netip.Pref
 	}
 
 	udp := func() {
-		defer stack.UDP().Close()
+		defer func(udp *nat.UDP) {
+			_ = udp.Close()
+		}(stack.UDP())
+
 		defer log.Debugln("UDP: closed")
 
-		for {
+		for !ipStack.closed {
 			buf := pool.Get(pool.UDPBufferSize)
 
 			n, lRAddr, rRAddr, err := stack.UDP().ReadFrom(buf)
@@ -143,15 +167,16 @@ func New(device device.Device, dnsHijack []netip.AddrPort, tunAddress netip.Pref
 
 			if D.ShouldHijackDns(dnsAddr, rAddrPort) {
 				go func() {
-					defer pool.Put(buf)
-
 					msg, err := D.RelayDnsPacket(raw)
 					if err != nil {
+						_ = pool.Put(buf)
 						return
 					}
 
 					_, _ = stack.UDP().WriteTo(msg, rAddr, lAddr)
 
+					_ = pool.Put(buf)
+
 					log.Debugln("[TUN] hijack dns udp: %s", rAddrPort.String())
 				}()
 
@@ -165,7 +190,7 @@ func New(device device.Device, dnsHijack []netip.AddrPort, tunAddress netip.Pref
 					return stack.UDP().WriteTo(b, rAddr, lAddr)
 				},
 				drop: func() {
-					pool.Put(buf)
+					_ = pool.Put(buf)
 				},
 			}
 
@@ -186,5 +211,5 @@ func New(device device.Device, dnsHijack []netip.AddrPort, tunAddress netip.Pref
 		go udp()
 	}
 
-	return &sysStack{stack: stack, device: device}, nil
+	return ipStack, nil
 }

listener/tun/tun_adapter.go

@@ -53,7 +53,6 @@ func New(tunConf *config.Tun, dnsConf *config.DNS, tcpIn chan<- C.ConnContext, u
 	process.AppendLocalIPs(tunAddress.Masked().Addr().Next().AsSlice())
 
 	// open tun device
-
 	tunDevice, err = parseDevice(devName, uint32(mtu))
 	if err != nil {
 		return nil, fmt.Errorf("can't open tun: %w", err)
@@ -112,7 +111,7 @@ func New(tunConf *config.Tun, dnsConf *config.DNS, tcpIn chan<- C.ConnContext, u
 func generateDeviceName() string {
 	switch runtime.GOOS {
 	case "darwin":
-		return tun.Driver + "://Meta"
+		return tun.Driver + "://utun"
 	case "windows":
 		return tun.Driver + "://Meta"
 	default:
@@ -149,9 +148,10 @@ func setAtLatest(stackType C.TUNStack, devName string) {
 	}
 
 	switch runtime.GOOS {
+	case "darwin":
+		_, _ = cmd.ExecCmd("sysctl net.inet.ip.forwarding=1")
 	case "windows":
 		_, _ = cmd.ExecCmd("ipconfig /renew")
-
 	case "linux":
 		// _, _ = cmd.ExecCmd("sysctl -w net.ipv4.ip_forward=1")
 		// _, _ = cmd.ExecCmd("sysctl -w net.ipv4.conf.all.forwarding = 1")

rule/common/network_type.go

@@ -13,22 +13,23 @@ type NetworkType struct {
 }
 
 func NewNetworkType(network, adapter string) (*NetworkType, error) {
-	var netType C.NetWork
+	ntType := NetworkType{
+		Base: &Base{},
+	}
+
+	ntType.adapter = adapter
 	switch strings.ToUpper(network) {
 	case "TCP":
-		netType = C.TCP
+		ntType.network = C.TCP
 		break
 	case "UDP":
-		netType = C.UDP
+		ntType.network = C.UDP
 		break
 	default:
 		return nil, fmt.Errorf("unsupported network type, only TCP/UDP")
 	}
-	return &NetworkType{
-		Base:    &Base{},
-		network: netType,
-		adapter: adapter,
-	}, nil
+
+	return &ntType, nil
 }
 
 func (n *NetworkType) RuleType() C.RuleType {

rule/common/port.go

@@ -5,20 +5,16 @@ import (
 	"strconv"
 	"strings"
 
+	"github.com/Dreamacro/clash/common/utils"
 	C "github.com/Dreamacro/clash/constant"
 )
 
-type portReal struct {
-	portStart int
-	portEnd   int
-}
-
 type Port struct {
 	*Base
 	adapter  string
 	port     string
 	isSource bool
-	portList []portReal
+	portList []utils.Range[uint16]
 }
 
 func (p *Port) RuleType() C.RuleType {
@@ -45,17 +41,13 @@ func (p *Port) Payload() string {
 
 func (p *Port) matchPortReal(portRef string) bool {
 	port, _ := strconv.Atoi(portRef)
-	var rs bool
+
 	for _, pr := range p.portList {
-		if pr.portEnd == -1 {
-			rs = port == pr.portStart
-		} else {
-			rs = port >= pr.portStart && port <= pr.portEnd
-		}
-		if rs {
+		if pr.Contains(uint16(port)) {
 			return true
 		}
 	}
+
 	return false
 }
 
@@ -65,7 +57,7 @@ func NewPort(port string, adapter string, isSource bool) (*Port, error) {
 		return nil, fmt.Errorf("%s, too many ports to use, maximum support 28 ports", errPayload.Error())
 	}
 
-	var portList []portReal
+	var portRange []utils.Range[uint16]
 	for _, p := range ports {
 		if p == "" {
 			continue
@@ -84,23 +76,18 @@ func NewPort(port string, adapter string, isSource bool) (*Port, error) {
 
 		switch subPortsLen {
 		case 1:
-			portList = append(portList, portReal{int(portStart), -1})
+			portRange = append(portRange, *utils.NewRange(uint16(portStart), uint16(portStart)))
 		case 2:
 			portEnd, err := strconv.ParseUint(strings.Trim(subPorts[1], "[ ]"), 10, 16)
 			if err != nil {
 				return nil, errPayload
 			}
 
-			shouldReverse := portStart > portEnd
-			if shouldReverse {
-				portList = append(portList, portReal{int(portEnd), int(portStart)})
-			} else {
-				portList = append(portList, portReal{int(portStart), int(portEnd)})
-			}
+			portRange = append(portRange, *utils.NewRange(uint16(portStart), uint16(portEnd)))
 		}
 	}
 
-	if len(portList) == 0 {
+	if len(portRange) == 0 {
 		return nil, errPayload
 	}
 
@@ -109,7 +96,7 @@ func NewPort(port string, adapter string, isSource bool) (*Port, error) {
 		adapter:  adapter,
 		port:     port,
 		isSource: isSource,
-		portList: portList,
+		portList: portRange,
 	}, nil
 }
 

rule/logic/common.go

@@ -51,6 +51,10 @@ func containRange(r Range, preStart, preEnd int) bool {
 
 func payloadToRule(subPayload string) (C.Rule, error) {
 	splitStr := strings.SplitN(subPayload, ",", 2)
+	if len(splitStr) < 2 {
+		return nil, fmt.Errorf("[%s] format is error", subPayload)
+	}
+
 	tp := splitStr[0]
 	payload := splitStr[1]
 	if tp == "NOT" || tp == "OR" || tp == "AND" {
@@ -86,9 +90,9 @@ func parseRule(tp, payload string, params []string) (C.Rule, error) {
 		parsed, parseErr = RC.NewGEOIP(payload, "", noResolve)
 	case "IP-CIDR", "IP-CIDR6":
 		noResolve := RC.HasNoResolve(params)
-		parsed, parseErr = RC.NewIPCIDR(payload, "", nil, RC.WithIPCIDRNoResolve(noResolve))
+		parsed, parseErr = RC.NewIPCIDR(payload, "", RC.WithIPCIDRNoResolve(noResolve))
 	case "SRC-IP-CIDR":
-		parsed, parseErr = RC.NewIPCIDR(payload, "", nil, RC.WithIPCIDRSourceIP(true), RC.WithIPCIDRNoResolve(true))
+		parsed, parseErr = RC.NewIPCIDR(payload, "", RC.WithIPCIDRSourceIP(true), RC.WithIPCIDRNoResolve(true))
 	case "SRC-PORT":
 		parsed, parseErr = RC.NewPort(payload, "", true)
 	case "DST-PORT":
@@ -108,7 +112,7 @@ func parseRule(tp, payload string, params []string) (C.Rule, error) {
 	case "NETWORK":
 		parsed, parseErr = RC.NewNetworkType(payload, "")
 	default:
-		parseErr = fmt.Errorf("unsupported rule type %s", tp)
+		parsed, parseErr = nil, fmt.Errorf("unsupported rule type %s", tp)
 	}
 
 	if parseErr != nil {
@@ -146,6 +150,10 @@ func format(payload string) ([]Range, error) {
 			num++
 			stack.Push(sr)
 		} else if c == ')' {
+			if stack.Len() == 0 {
+				return nil, fmt.Errorf("missing '('")
+			}
+
 			sr := stack.Pop().(Range)
 			sr.end = i
 			subRanges = append(subRanges, sr)

rule/logic/logic_test.go

@@ -0,0 +1,49 @@
+package logic
+
+import (
+	"github.com/Dreamacro/clash/constant"
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
+
+func TestAND(t *testing.T) {
+	and, err := NewAND("((DOMAIN,baidu.com),(NETWORK,TCP),(DST-PORT,10001-65535))", "DIRECT")
+	assert.Equal(t, nil, err)
+	assert.Equal(t, "DIRECT", and.adapter)
+	assert.Equal(t, false, and.ShouldResolveIP())
+	assert.Equal(t, true, and.Match(&constant.Metadata{
+		Host:     "baidu.com",
+		AddrType: constant.AtypDomainName,
+		NetWork:  constant.TCP,
+		DstPort:  "20000",
+	}))
+
+	and, err = NewAND("(DOMAIN,baidu.com),(NETWORK,TCP),(DST-PORT,10001-65535))", "DIRECT")
+	assert.NotEqual(t, nil, err)
+
+	and, err = NewAND("((AND,(DOMAIN,baidu.com),(NETWORK,TCP)),(NETWORK,TCP),(DST-PORT,10001-65535))", "DIRECT")
+	assert.Equal(t, nil, err)
+}
+
+func TestNOT(t *testing.T) {
+	not, err := NewNOT("((DST-PORT,6000-6500))", "REJECT")
+	assert.Equal(t, nil, err)
+	assert.Equal(t, false, not.Match(&constant.Metadata{
+		DstPort: "6100",
+	}))
+
+	_, err = NewNOT("((DST-PORT,5600-6666),(DOMAIN,baidu.com))", "DIRECT")
+	assert.NotEqual(t, nil, err)
+
+	_, err = NewNOT("(())", "DIRECT")
+	assert.NotEqual(t, nil, err)
+}
+
+func TestOR(t *testing.T) {
+	or, err := NewOR("((DOMAIN,baidu.com),(NETWORK,TCP),(DST-PORT,10001-65535))", "DIRECT")
+	assert.Equal(t, nil, err)
+	assert.Equal(t, true, or.Match(&constant.Metadata{
+		NetWork: constant.TCP,
+	}))
+	assert.Equal(t, false, or.ShouldResolveIP())
+}

rule/logic/not.go

@@ -24,11 +24,14 @@ func NewNOT(payload string, adapter string) (*NOT, error) {
 		return nil, err
 	}
 
-	if len(rule) < 1 {
-		return nil, fmt.Errorf("the parsed rule is empty")
+	if len(rule) > 1 {
+		return nil, fmt.Errorf("not rule can contain at most one rule")
 	}
 
+	if len(rule) > 0 {
 		not.rule = rule[0]
+	}
+
 	return not, nil
 }
 
@@ -37,7 +40,7 @@ func (not *NOT) RuleType() C.RuleType {
 }
 
 func (not *NOT) Match(metadata *C.Metadata) bool {
-	return !not.rule.Match(metadata)
+	return not.rule == nil || !not.rule.Match(metadata)
 }
 
 func (not *NOT) Adapter() string {
@@ -49,5 +52,5 @@ func (not *NOT) Payload() string {
 }
 
 func (not *NOT) ShouldResolveIP() bool {
-	return not.rule.ShouldResolveIP()
+	return not.rule != nil && not.rule.ShouldResolveIP()
 }

rule/provider/domain_strategy.go

@@ -10,7 +10,7 @@ import (
 type domainStrategy struct {
 	shouldResolveIP bool
 	count           int
-	domainRules     *trie.DomainTrie
+	domainRules     *trie.DomainTrie[bool]
 }
 
 func (d *domainStrategy) Match(metadata *C.Metadata) bool {
@@ -26,9 +26,9 @@ func (d *domainStrategy) ShouldResolveIP() bool {
 }
 
 func (d *domainStrategy) OnUpdate(rules []string) {
-	domainTrie := trie.New()
+	domainTrie := trie.New[bool]()
 	for _, rule := range rules {
-		err := domainTrie.Insert(rule, "")
+		err := domainTrie.Insert(rule, true)
 		if err != nil {
 			log.Warnln("invalid domain:[%s]", rule)
 		} else {

transport/trojan/trojan.go

@@ -148,7 +148,7 @@ func (t *Trojan) PresetXTLSConn(conn net.Conn) (net.Conn, error) {
 				xtlsConn.DirectMode = true
 			}
 		} else {
-			return nil, fmt.Errorf("failed to use %s, maybe \"security\" is not \"xtls\"", t.option.Flow)
+			return conn, fmt.Errorf("failed to use %s, maybe \"security\" is not \"xtls\"", t.option.Flow)
 		}
 	}
 

tunnel/tunnel.go

@@ -14,6 +14,7 @@ import (
 	"github.com/Dreamacro/clash/component/nat"
 	P "github.com/Dreamacro/clash/component/process"
 	"github.com/Dreamacro/clash/component/resolver"
+	"github.com/Dreamacro/clash/component/sniffer"
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/constant/provider"
 	icontext "github.com/Dreamacro/clash/context"
@@ -36,6 +37,8 @@ var (
 
 	// default timeout for UDP session
 	udpTimeout = 60 * time.Second
+
+	snifferDispatcher *sniffer.SnifferDispatcher
 )
 
 func init() {
@@ -88,6 +91,12 @@ func UpdateProxies(newProxies map[string]C.Proxy, newProviders map[string]provid
 	configMux.Unlock()
 }
 
+func UpdateSniffer(dispatcher *sniffer.SnifferDispatcher) {
+	configMux.Lock()
+	sniffer.Dispatcher = *dispatcher
+	configMux.Unlock()
+}
+
 // Mode return current mode
 func Mode() TunnelMode {
 	return mode
@@ -149,7 +158,7 @@ func preHandleMetadata(metadata *C.Metadata) error {
 				metadata.DNSMode = C.DNSFakeIP
 			} else if node := resolver.DefaultHosts.Search(host); node != nil {
 				// redir-host should lookup the hosts
-				metadata.DstIP = node.Data.(net.IP)
+				metadata.DstIP = node.Data.AsSlice()
 			}
 		} else if resolver.IsFakeIP(metadata.DstIP) {
 			return fmt.Errorf("fake DNS record %s missing", metadata.DstIP)
@@ -172,7 +181,7 @@ func preHandleMetadata(metadata *C.Metadata) error {
 	return nil
 }
 
-func resolveMetadata(ctx C.PlainContext, metadata *C.Metadata) (proxy C.Proxy, rule C.Rule, err error) {
+func resolveMetadata(_ C.PlainContext, metadata *C.Metadata) (proxy C.Proxy, rule C.Rule, err error) {
 	switch mode {
 	case Direct:
 		proxy = proxies["DIRECT"]
@@ -208,7 +217,7 @@ func handleUDPConn(packet *inbound.PacketAdapter) {
 	handle := func() bool {
 		pc := natTable.Get(key)
 		if pc != nil {
-			handleUDPToRemote(packet, pc, metadata)
+			_ = handleUDPToRemote(packet, pc, metadata)
 			return true
 		}
 		return false
@@ -281,7 +290,9 @@ func handleUDPConn(packet *inbound.PacketAdapter) {
 }
 
 func handleTCPConn(connCtx C.ConnContext) {
-	defer connCtx.Conn().Close()
+	defer func(conn net.Conn) {
+		_ = conn.Close()
+	}(connCtx.Conn())
 
 	metadata := connCtx.Metadata()
 	if !metadata.Valid() {
@@ -294,6 +305,10 @@ func handleTCPConn(connCtx C.ConnContext) {
 		return
 	}
 
+	if sniffer.Dispatcher.Enable() {
+		sniffer.Dispatcher.TCPSniff(connCtx.Conn(), metadata)
+	}
+
 	proxy, rule, err := resolveMetadata(connCtx, metadata)
 	if err != nil {
 		log.Warnln("[Metadata] parse failed: %s", err.Error())
@@ -312,7 +327,9 @@ func handleTCPConn(connCtx C.ConnContext) {
 		return
 	}
 	remoteConn = statistic.NewTCPTracker(remoteConn, statistic.DefaultManager, metadata, rule)
-	defer remoteConn.Close()
+	defer func(remoteConn C.Conn) {
+		_ = remoteConn.Close()
+	}(remoteConn)
 
 	switch true {
 	case rule != nil:
@@ -345,8 +362,7 @@ func match(metadata *C.Metadata) (C.Proxy, C.Rule, error) {
 	var resolved bool
 
 	if node := resolver.DefaultHosts.Search(metadata.Host); node != nil {
-		ip := node.Data.(net.IP)
-		metadata.DstIP = ip
+		metadata.DstIP = node.Data.AsSlice()
 		resolved = true
 	}