Bump version

.fpm_systemd

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

.github/CRONET_GO_VERSION

@@ -1 +1 @@
-335e5bef5d88fc4474c9a70b865561f45a67de83
+ea7cd33752aed62603775af3df946c1b83f4b0b3

adapter/dns.go

@@ -3,7 +3,6 @@ package adapter
 import (
 	"context"
 	"net/netip"
-	"time"
 
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/log"
@@ -26,19 +25,18 @@ type DNSRouter interface {
 
 type DNSClient interface {
 	Start()
-	Exchange(ctx context.Context, transport DNSTransport, message *dns.Msg, options DNSQueryOptions, responseChecker func(response *dns.Msg) bool) (*dns.Msg, error)
+	Exchange(ctx context.Context, transport DNSTransport, message *dns.Msg, options DNSQueryOptions, responseChecker func(responseAddrs []netip.Addr) bool) (*dns.Msg, error)
-	Lookup(ctx context.Context, transport DNSTransport, domain string, options DNSQueryOptions, responseChecker func(response *dns.Msg) bool) ([]netip.Addr, error)
+	Lookup(ctx context.Context, transport DNSTransport, domain string, options DNSQueryOptions, responseChecker func(responseAddrs []netip.Addr) bool) ([]netip.Addr, error)
 	ClearCache()
 }
 
 type DNSQueryOptions struct {
-	Transport              DNSTransport
+	Transport      DNSTransport
-	Strategy               C.DomainStrategy
+	Strategy       C.DomainStrategy
-	LookupStrategy         C.DomainStrategy
+	LookupStrategy C.DomainStrategy
-	DisableCache           bool
+	DisableCache   bool
-	DisableOptimisticCache bool
+	RewriteTTL     *uint32
-	RewriteTTL             *uint32
+	ClientSubnet   netip.Prefix
-	ClientSubnet           netip.Prefix
 }
 
 func DNSQueryOptionsFrom(ctx context.Context, options *option.DomainResolveOptions) (*DNSQueryOptions, error) {
@@ -51,12 +49,11 @@ func DNSQueryOptionsFrom(ctx context.Context, options *option.DomainResolveOptio
 		return nil, E.New("domain resolver not found: " + options.Server)
 	}
 	return &DNSQueryOptions{
-		Transport:              transport,
+		Transport:    transport,
-		Strategy:               C.DomainStrategy(options.Strategy),
+		Strategy:     C.DomainStrategy(options.Strategy),
-		DisableCache:           options.DisableCache,
+		DisableCache: options.DisableCache,
-		DisableOptimisticCache: options.DisableOptimisticCache,
+		RewriteTTL:   options.RewriteTTL,
-		RewriteTTL:             options.RewriteTTL,
+		ClientSubnet: options.ClientSubnet.Build(netip.Prefix{}),
-		ClientSubnet:           options.ClientSubnet.Build(netip.Prefix{}),
 	}, nil
 }
 
@@ -66,13 +63,6 @@ type RDRCStore interface {
 	SaveRDRCAsync(transportName string, qName string, qType uint16, logger logger.Logger)
 }
 
-type DNSCacheStore interface {
-	LoadDNSCache(transportName string, qName string, qType uint16) (rawMessage []byte, expireAt time.Time, loaded bool)
-	SaveDNSCache(transportName string, qName string, qType uint16, rawMessage []byte, expireAt time.Time) error
-	SaveDNSCacheAsync(transportName string, qName string, qType uint16, rawMessage []byte, expireAt time.Time, logger logger.Logger)
-	ClearDNSCache() error
-}
-
 type DNSTransport interface {
 	Lifecycle
 	Type() string
@@ -82,6 +72,11 @@ type DNSTransport interface {
 	Exchange(ctx context.Context, message *dns.Msg) (*dns.Msg, error)
 }
 
+type LegacyDNSTransport interface {
+	LegacyStrategy() C.DomainStrategy
+	LegacyClientSubnet() netip.Prefix
+}
+
 type DNSTransportRegistry interface {
 	option.DNSTransportOptionsRegistry
 	CreateDNSTransport(ctx context.Context, logger log.ContextLogger, tag string, transportType string, options any) (DNSTransport, error)

adapter/experimental.go

@@ -47,12 +47,6 @@ type CacheFile interface {
 	StoreRDRC() bool
 	RDRCStore
 
-	StoreDNS() bool
-	DNSCacheStore
-
-	SetDisableExpire(disableExpire bool)
-	SetOptimisticTimeout(timeout time.Duration)
-
 	LoadMode() string
 	StoreMode(mode string) error
 	LoadSelected(group string) string

adapter/http.go

@@ -1,13 +0,0 @@
-package adapter
-
-import (
-	"net/http"
-
-	"github.com/sagernet/sing-box/option"
-	"github.com/sagernet/sing/common/logger"
-)
-
-type HTTPClientManager interface {
-	ResolveTransport(logger logger.ContextLogger, options option.HTTPClientOptions) (http.RoundTripper, error)
-	DefaultTransport() http.RoundTripper
-}

adapter/inbound.go

@@ -10,8 +10,6 @@ import (
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
 	M "github.com/sagernet/sing/common/metadata"
-
-	"github.com/miekg/dns"
 )
 
 type Inbound interface {
@@ -81,16 +79,14 @@ type InboundContext struct {
 	FallbackNetworkType []C.InterfaceType
 	FallbackDelay       time.Duration
 
-	DestinationAddresses                []netip.Addr
+	DestinationAddresses []netip.Addr
-	DNSResponse                         *dns.Msg
+	SourceGeoIPCode      string
-	DestinationAddressMatchFromResponse bool
+	GeoIPCode            string
-	SourceGeoIPCode                     string
+	ProcessInfo          *ConnectionOwner
-	GeoIPCode                           string
+	SourceMACAddress     net.HardwareAddr
-	ProcessInfo                         *ConnectionOwner
+	SourceHostname       string
-	SourceMACAddress                    net.HardwareAddr
+	QueryType            uint16
-	SourceHostname                      string
+	FakeIP               bool
-	QueryType                           uint16
-	FakeIP                              bool
 
 	// rule cache
 
@@ -119,51 +115,6 @@ func (c *InboundContext) ResetRuleMatchCache() {
 	c.DidMatch = false
 }
 
-func (c *InboundContext) DNSResponseAddressesForMatch() []netip.Addr {
-	return DNSResponseAddresses(c.DNSResponse)
-}
-
-func DNSResponseAddresses(response *dns.Msg) []netip.Addr {
-	if response == nil || response.Rcode != dns.RcodeSuccess {
-		return nil
-	}
-	addresses := make([]netip.Addr, 0, len(response.Answer))
-	for _, rawRecord := range response.Answer {
-		switch record := rawRecord.(type) {
-		case *dns.A:
-			addr := M.AddrFromIP(record.A)
-			if addr.IsValid() {
-				addresses = append(addresses, addr)
-			}
-		case *dns.AAAA:
-			addr := M.AddrFromIP(record.AAAA)
-			if addr.IsValid() {
-				addresses = append(addresses, addr)
-			}
-		case *dns.HTTPS:
-			for _, value := range record.SVCB.Value {
-				switch hint := value.(type) {
-				case *dns.SVCBIPv4Hint:
-					for _, ip := range hint.Hint {
-						addr := M.AddrFromIP(ip).Unmap()
-						if addr.IsValid() {
-							addresses = append(addresses, addr)
-						}
-					}
-				case *dns.SVCBIPv6Hint:
-					for _, ip := range hint.Hint {
-						addr := M.AddrFromIP(ip)
-						if addr.IsValid() {
-							addresses = append(addresses, addr)
-						}
-					}
-				}
-			}
-		}
-	}
-	return addresses
-}
-
 type inboundContextKey struct{}
 
 func WithContext(ctx context.Context, inboundContext *InboundContext) context.Context {

adapter/inbound_test.go

@@ -1,45 +0,0 @@
-package adapter
-
-import (
-	"net"
-	"net/netip"
-	"testing"
-
-	"github.com/miekg/dns"
-	"github.com/stretchr/testify/require"
-)
-
-func TestDNSResponseAddressesUnmapsHTTPSIPv4Hints(t *testing.T) {
-	t.Parallel()
-
-	ipv4Hint := net.ParseIP("1.1.1.1")
-	require.NotNil(t, ipv4Hint)
-
-	response := &dns.Msg{
-		MsgHdr: dns.MsgHdr{
-			Response: true,
-			Rcode:    dns.RcodeSuccess,
-		},
-		Answer: []dns.RR{
-			&dns.HTTPS{
-				SVCB: dns.SVCB{
-					Hdr: dns.RR_Header{
-						Name:   dns.Fqdn("example.com"),
-						Rrtype: dns.TypeHTTPS,
-						Class:  dns.ClassINET,
-						Ttl:    60,
-					},
-					Priority: 1,
-					Target:   ".",
-					Value: []dns.SVCBKeyValue{
-						&dns.SVCBIPv4Hint{Hint: []net.IP{ipv4Hint}},
-					},
-				},
-			},
-		},
-	}
-
-	addresses := DNSResponseAddresses(response)
-	require.Equal(t, []netip.Addr{netip.MustParseAddr("1.1.1.1")}, addresses)
-	require.True(t, addresses[0].Is4())
-}

adapter/router.go

@@ -2,11 +2,17 @@ package adapter
 
 import (
 	"context"
+	"crypto/tls"
 	"net"
+	"net/http"
+	"sync"
 	"time"
 
+	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-tun"
+	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
+	"github.com/sagernet/sing/common/ntp"
 	"github.com/sagernet/sing/common/x/list"
 
 	"go4.org/netipx"
@@ -45,7 +51,7 @@ type ConnectionRouterEx interface {
 
 type RuleSet interface {
 	Name() string
-	StartContext(ctx context.Context) error
+	StartContext(ctx context.Context, startContext *HTTPStartContext) error
 	PostStart() error
 	Metadata() RuleSetMetadata
 	ExtractIPSet() []*netipx.IPSet
@@ -60,14 +66,51 @@ type RuleSet interface {
 
 type RuleSetUpdateCallback func(it RuleSet)
 
-type DNSRuleSetUpdateValidator interface {
+type RuleSetMetadata struct {
-	ValidateRuleSetMetadataUpdate(tag string, metadata RuleSetMetadata) error
+	ContainsProcessRule bool
+	ContainsWIFIRule    bool
+	ContainsIPCIDRRule  bool
+}
+type HTTPStartContext struct {
+	ctx             context.Context
+	access          sync.Mutex
+	httpClientCache map[string]*http.Client
 }
 
-// ip_version is not a headless-rule item, so ContainsIPVersionRule is intentionally absent.
+func NewHTTPStartContext(ctx context.Context) *HTTPStartContext {
-type RuleSetMetadata struct {
+	return &HTTPStartContext{
-	ContainsProcessRule      bool
+		ctx:             ctx,
-	ContainsWIFIRule         bool
+		httpClientCache: make(map[string]*http.Client),
-	ContainsIPCIDRRule       bool
+	}
-	ContainsDNSQueryTypeRule bool
+}
+
+func (c *HTTPStartContext) HTTPClient(detour string, dialer N.Dialer) *http.Client {
+	c.access.Lock()
+	defer c.access.Unlock()
+	if httpClient, loaded := c.httpClientCache[detour]; loaded {
+		return httpClient
+	}
+	httpClient := &http.Client{
+		Transport: &http.Transport{
+			ForceAttemptHTTP2:   true,
+			TLSHandshakeTimeout: C.TCPTimeout,
+			DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
+				return dialer.DialContext(ctx, network, M.ParseSocksaddr(addr))
+			},
+			TLSClientConfig: &tls.Config{
+				Time:    ntp.TimeFuncFromContext(c.ctx),
+				RootCAs: RootPoolFromContext(c.ctx),
+			},
+		},
+	}
+	c.httpClientCache[detour] = httpClient
+	return httpClient
+}
+
+func (c *HTTPStartContext) Close() {
+	c.access.Lock()
+	defer c.access.Unlock()
+	for _, client := range c.httpClientCache {
+		client.CloseIdleConnections()
+	}
 }

adapter/rule.go

@@ -2,8 +2,6 @@ package adapter
 
 import (
 	C "github.com/sagernet/sing-box/constant"
-
-	"github.com/miekg/dns"
 )
 
 type HeadlessRule interface {
@@ -20,9 +18,8 @@ type Rule interface {
 
 type DNSRule interface {
 	Rule
-	LegacyPreMatch(metadata *InboundContext) bool
 	WithAddressLimit() bool
-	MatchAddressLimit(metadata *InboundContext, response *dns.Msg) bool
+	MatchAddressLimit(metadata *InboundContext) bool
 }
 
 type RuleAction interface {
@@ -32,7 +29,7 @@ type RuleAction interface {
 
 func IsFinalAction(action RuleAction) bool {
 	switch action.Type() {
-	case C.RuleActionTypeSniff, C.RuleActionTypeResolve, C.RuleActionTypeEvaluate:
+	case C.RuleActionTypeSniff, C.RuleActionTypeResolve:
 		return false
 	default:
 		return true

adapter/tailscale.go

@@ -1,49 +0,0 @@
-package adapter
-
-import "context"
-
-type TailscaleEndpoint interface {
-	SubscribeTailscaleStatus(ctx context.Context, fn func(*TailscaleEndpointStatus)) error
-	StartTailscalePing(ctx context.Context, peerIP string, fn func(*TailscalePingResult)) error
-}
-
-type TailscalePingResult struct {
-	LatencyMs      float64
-	IsDirect       bool
-	Endpoint       string
-	DERPRegionID   int32
-	DERPRegionCode string
-	Error          string
-}
-
-type TailscaleEndpointStatus struct {
-	BackendState   string
-	AuthURL        string
-	NetworkName    string
-	MagicDNSSuffix string
-	Self           *TailscalePeer
-	UserGroups     []*TailscaleUserGroup
-}
-
-type TailscaleUserGroup struct {
-	UserID        int64
-	LoginName     string
-	DisplayName   string
-	ProfilePicURL string
-	Peers         []*TailscalePeer
-}
-
-type TailscalePeer struct {
-	HostName       string
-	DNSName        string
-	OS             string
-	TailscaleIPs   []string
-	Online         bool
-	ExitNode       bool
-	ExitNodeOption bool
-	Active         bool
-	RxBytes        int64
-	TxBytes        int64
-	UserID         int64
-	KeyExpiry      int64
-}

box.go

@@ -16,14 +16,13 @@ import (
 	boxService "github.com/sagernet/sing-box/adapter/service"
 	"github.com/sagernet/sing-box/common/certificate"
 	"github.com/sagernet/sing-box/common/dialer"
-	"github.com/sagernet/sing-box/common/httpclient"
 	"github.com/sagernet/sing-box/common/taskmonitor"
 	"github.com/sagernet/sing-box/common/tls"
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/dns"
+	"github.com/sagernet/sing-box/dns/transport/local"
 	"github.com/sagernet/sing-box/experimental"
 	"github.com/sagernet/sing-box/experimental/cachefile"
-	"github.com/sagernet/sing-box/experimental/deprecated"
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
 	"github.com/sagernet/sing-box/protocol/direct"
@@ -52,7 +51,6 @@ type Box struct {
 	dnsRouter           *dns.Router
 	connection          *route.ConnectionManager
 	router              *route.Router
-	httpClientService   adapter.LifecycleService
 	internalService     []adapter.LifecycleService
 	done                chan struct{}
 }
@@ -172,10 +170,6 @@ func New(options Options) (*Box, error) {
 	}
 
 	var internalServices []adapter.LifecycleService
-	routeOptions := common.PtrValueOrDefault(options.Route)
-	httpClientManager := httpclient.NewManager(ctx, logFactory.NewLogger("httpclient"), options.HTTPClients, routeOptions.DefaultHTTPClient)
-	service.MustRegister[adapter.HTTPClientManager](ctx, httpClientManager)
-	httpClientService := adapter.LifecycleService(httpClientManager)
 	certificateOptions := common.PtrValueOrDefault(options.Certificate)
 	if C.IsAndroid || certificateOptions.Store != "" && certificateOptions.Store != C.CertificateStoreSystem ||
 		len(certificateOptions.Certificate) > 0 ||
@@ -188,6 +182,8 @@ func New(options Options) (*Box, error) {
 		service.MustRegister[adapter.CertificateStore](ctx, certificateStore)
 		internalServices = append(internalServices, certificateStore)
 	}
+
+	routeOptions := common.PtrValueOrDefault(options.Route)
 	dnsOptions := common.PtrValueOrDefault(options.DNS)
 	endpointManager := endpoint.NewManager(logFactory.NewLogger("endpoint"), endpointRegistry)
 	inboundManager := inbound.NewManager(logFactory.NewLogger("inbound"), inboundRegistry, endpointManager)
@@ -201,12 +197,8 @@ func New(options Options) (*Box, error) {
 	service.MustRegister[adapter.DNSTransportManager](ctx, dnsTransportManager)
 	service.MustRegister[adapter.ServiceManager](ctx, serviceManager)
 	service.MustRegister[adapter.CertificateProviderManager](ctx, certificateProviderManager)
-	dnsRouter, err := dns.NewRouter(ctx, logFactory, dnsOptions)
+	dnsRouter := dns.NewRouter(ctx, logFactory, dnsOptions)
-	if err != nil {
-		return nil, E.Cause(err, "initialize DNS router")
-	}
 	service.MustRegister[adapter.DNSRouter](ctx, dnsRouter)
-	service.MustRegister[adapter.DNSRuleSetUpdateValidator](ctx, dnsRouter)
 	networkManager, err := route.NewNetworkManager(ctx, logFactory.NewLogger("network"), routeOptions, dnsOptions)
 	if err != nil {
 		return nil, E.Cause(err, "initialize network manager")
@@ -365,20 +357,13 @@ func New(options Options) (*Box, error) {
 		)
 	})
 	dnsTransportManager.Initialize(func() (adapter.DNSTransport, error) {
-		return dnsTransportRegistry.CreateDNSTransport(
+		return local.NewTransport(
 			ctx,
 			logFactory.NewLogger("dns/local"),
 			"local",
-			C.DNSTypeLocal,
+			option.LocalDNSServerOptions{},
-			&option.LocalDNSServerOptions{},
 		)
 	})
-	httpClientManager.Initialize(func() (*httpclient.Client, error) {
-		deprecated.Report(ctx, deprecated.OptionImplicitDefaultHTTPClient)
-		var httpClientOptions option.HTTPClientOptions
-		httpClientOptions.DefaultOutbound = true
-		return httpclient.NewClient(ctx, logFactory.NewLogger("httpclient"), "", httpClientOptions)
-	})
 	if platformInterface != nil {
 		err = platformInterface.Initialize(networkManager)
 		if err != nil {
@@ -386,7 +371,7 @@ func New(options Options) (*Box, error) {
 		}
 	}
 	if needCacheFile {
-		cacheFile := cachefile.New(ctx, logFactory.NewLogger("cache-file"), common.PtrValueOrDefault(experimentalOptions.CacheFile))
+		cacheFile := cachefile.New(ctx, common.PtrValueOrDefault(experimentalOptions.CacheFile))
 		service.MustRegister[adapter.CacheFile](ctx, cacheFile)
 		internalServices = append(internalServices, cacheFile)
 	}
@@ -439,7 +424,6 @@ func New(options Options) (*Box, error) {
 		dnsRouter:           dnsRouter,
 		connection:          connectionManager,
 		router:              router,
-		httpClientService:   httpClientService,
 		createdAt:           createdAt,
 		logFactory:          logFactory,
 		logger:              logFactory.Logger(),
@@ -502,15 +486,7 @@ func (s *Box) preStart() error {
 	if err != nil {
 		return err
 	}
-	err = adapter.Start(s.logger, adapter.StartStateStart, s.outbound, s.dnsTransport, s.network, s.connection)
+	err = adapter.Start(s.logger, adapter.StartStateStart, s.outbound, s.dnsTransport, s.dnsRouter, s.network, s.connection, s.router)
-	if err != nil {
-		return err
-	}
-	err = adapter.StartNamed(s.logger, adapter.StartStateStart, []adapter.LifecycleService{s.httpClientService})
-	if err != nil {
-		return err
-	}
-	err = adapter.Start(s.logger, adapter.StartStateStart, s.router, s.dnsRouter)
 	if err != nil {
 		return err
 	}
@@ -587,14 +563,6 @@ func (s *Box) Close() error {
 		})
 		s.logger.Trace("close ", closeItem.name, " completed (", F.Seconds(time.Since(startTime).Seconds()), "s)")
 	}
-	if s.httpClientService != nil {
-		s.logger.Trace("close ", s.httpClientService.Name())
-		startTime := time.Now()
-		err = E.Append(err, s.httpClientService.Close(), func(err error) error {
-			return E.Cause(err, "close ", s.httpClientService.Name())
-		})
-		s.logger.Trace("close ", s.httpClientService.Name(), " completed (", F.Seconds(time.Since(startTime).Seconds()), "s)")
-	}
 	for _, lifecycleService := range s.internalService {
 		s.logger.Trace("close ", lifecycleService.Name())
 		startTime := time.Now()
@@ -628,10 +596,6 @@ func (s *Box) Outbound() adapter.OutboundManager {
 	return s.outbound
 }
 
-func (s *Box) Endpoint() adapter.EndpointManager {
-	return s.endpoint
-}
-
 func (s *Box) LogFactory() log.Factory {
 	return s.logFactory
 }

cmd/internal/update_certificates/main.go

@@ -5,7 +5,6 @@ import (
 	"io"
 	"net/http"
 	"os"
-	"path/filepath"
 	"strings"
 
 	"github.com/sagernet/sing-box/log"
@@ -36,9 +35,21 @@ func updateMozillaIncludedRootCAs() error {
 		return err
 	}
 	geoIndex := slices.Index(header, "Geographic Focus")
+	nameIndex := slices.Index(header, "Common Name or Certificate Name")
 	certIndex := slices.Index(header, "PEM Info")
 
-	pemBundle := strings.Builder{}
+	generated := strings.Builder{}
+	generated.WriteString(`// Code generated by 'make update_certificates'. DO NOT EDIT.
+
+package certificate
+
+import "crypto/x509"
+
+var mozillaIncluded *x509.CertPool
+
+func init() {
+	mozillaIncluded = x509.NewCertPool()
+`)
 	for {
 		record, err := reader.Read()
 		if err == io.EOF {
@@ -49,12 +60,18 @@ func updateMozillaIncludedRootCAs() error {
 		if record[geoIndex] == "China" {
 			continue
 		}
+		generated.WriteString("\n	// ")
+		generated.WriteString(record[nameIndex])
+		generated.WriteString("\n")
+		generated.WriteString("	mozillaIncluded.AppendCertsFromPEM([]byte(`")
 		cert := record[certIndex]
+		// Remove single quotes
 		cert = cert[1 : len(cert)-1]
-		pemBundle.WriteString(cert)
+		generated.WriteString(cert)
-		pemBundle.WriteString("\n")
+		generated.WriteString("`))\n")
 	}
-	return writeGeneratedCertificateBundle("mozilla", "mozillaIncluded", pemBundle.String())
+	generated.WriteString("}\n")
+	return os.WriteFile("common/certificate/mozilla.go", []byte(generated.String()), 0o644)
 }
 
 func fetchChinaFingerprints() (map[string]bool, error) {
@@ -102,11 +119,23 @@ func updateChromeIncludedRootCAs() error {
 	if err != nil {
 		return err
 	}
+	subjectIndex := slices.Index(header, "Subject")
 	statusIndex := slices.Index(header, "Google Chrome Status")
 	certIndex := slices.Index(header, "X.509 Certificate (PEM)")
 	fingerprintIndex := slices.Index(header, "SHA-256 Fingerprint")
 
-	pemBundle := strings.Builder{}
+	generated := strings.Builder{}
+	generated.WriteString(`// Code generated by 'make update_certificates'. DO NOT EDIT.
+
+package certificate
+
+import "crypto/x509"
+
+var chromeIncluded *x509.CertPool
+
+func init() {
+	chromeIncluded = x509.NewCertPool()
+`)
 	for {
 		record, err := reader.Read()
 		if err == io.EOF {
@@ -120,39 +149,18 @@ func updateChromeIncludedRootCAs() error {
 		if chinaFingerprints[record[fingerprintIndex]] {
 			continue
 		}
+		generated.WriteString("\n	// ")
+		generated.WriteString(record[subjectIndex])
+		generated.WriteString("\n")
+		generated.WriteString("	chromeIncluded.AppendCertsFromPEM([]byte(`")
 		cert := record[certIndex]
+		// Remove single quotes if present
 		if len(cert) > 0 && cert[0] == '\'' {
 			cert = cert[1 : len(cert)-1]
 		}
-		pemBundle.WriteString(cert)
+		generated.WriteString(cert)
-		pemBundle.WriteString("\n")
+		generated.WriteString("`))\n")
 	}
-	return writeGeneratedCertificateBundle("chrome", "chromeIncluded", pemBundle.String())
+	generated.WriteString("}\n")
-}
+	return os.WriteFile("common/certificate/chrome.go", []byte(generated.String()), 0o644)
-
-func writeGeneratedCertificateBundle(name string, variableName string, pemBundle string) error {
-	goSource := `// Code generated by 'make update_certificates'. DO NOT EDIT.
-
-package certificate
-
-import (
-	"crypto/x509"
-	_ "embed"
-)
-
-//go:embed ` + name + `.pem
-var ` + variableName + `PEM string
-
-var ` + variableName + ` *x509.CertPool
-
-func init() {
-	` + variableName + ` = x509.NewCertPool()
-	` + variableName + `.AppendCertsFromPEM([]byte(` + variableName + `PEM))
-}
-`
-	err := os.WriteFile(filepath.Join("common/certificate", name+".pem"), []byte(pemBundle), 0o644)
-	if err != nil {
-		return err
-	}
-	return os.WriteFile(filepath.Join("common/certificate", name+".go"), []byte(goSource), 0o644)
 }

cmd/sing-box/cmd_rule_set_compile.go

@@ -82,11 +82,6 @@ func compileRuleSet(sourcePath string) error {
 }
 
 func downgradeRuleSetVersion(version uint8, options option.PlainRuleSet) uint8 {
-	if version == C.RuleSetVersion5 && !rule.HasHeadlessRule(options.Rules, func(rule option.DefaultHeadlessRule) bool {
-		return len(rule.PackageNameRegex) > 0
-	}) {
-		version = C.RuleSetVersion4
-	}
 	if version == C.RuleSetVersion4 && !rule.HasHeadlessRule(options.Rules, func(rule option.DefaultHeadlessRule) bool {
 		return rule.NetworkInterfaceAddress != nil && rule.NetworkInterfaceAddress.Size() > 0 ||
 			len(rule.DefaultInterfaceAddress) > 0

cmd/sing-box/cmd_tools_networkquality.go

@@ -1,121 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"os"
-	"strings"
-	"time"
-
-	"github.com/sagernet/sing-box/common/networkquality"
-	"github.com/sagernet/sing-box/log"
-
-	"github.com/spf13/cobra"
-)
-
-var (
-	commandNetworkQualityFlagConfigURL  string
-	commandNetworkQualityFlagSerial     bool
-	commandNetworkQualityFlagMaxRuntime int
-	commandNetworkQualityFlagHTTP3      bool
-)
-
-var commandNetworkQuality = &cobra.Command{
-	Use:   "networkquality",
-	Short: "Run a network quality test",
-	Run: func(cmd *cobra.Command, args []string) {
-		err := runNetworkQuality()
-		if err != nil {
-			log.Fatal(err)
-		}
-	},
-}
-
-func init() {
-	commandNetworkQuality.Flags().StringVar(
-		&commandNetworkQualityFlagConfigURL,
-		"config-url", "",
-		"Network quality test config URL (default: Apple mensura)",
-	)
-	commandNetworkQuality.Flags().BoolVar(
-		&commandNetworkQualityFlagSerial,
-		"serial", false,
-		"Run download and upload tests sequentially instead of in parallel",
-	)
-	commandNetworkQuality.Flags().IntVar(
-		&commandNetworkQualityFlagMaxRuntime,
-		"max-runtime", int(networkquality.DefaultMaxRuntime/time.Second),
-		"Network quality maximum runtime in seconds",
-	)
-	commandNetworkQuality.Flags().BoolVar(
-		&commandNetworkQualityFlagHTTP3,
-		"http3", false,
-		"Use HTTP/3 (QUIC) for measurement traffic",
-	)
-	commandTools.AddCommand(commandNetworkQuality)
-}
-
-func runNetworkQuality() error {
-	instance, err := createPreStartedClient()
-	if err != nil {
-		return err
-	}
-	defer instance.Close()
-
-	dialer, err := createDialer(instance, commandToolsFlagOutbound)
-	if err != nil {
-		return err
-	}
-
-	httpClient := networkquality.NewHTTPClient(dialer)
-	defer httpClient.CloseIdleConnections()
-
-	measurementClientFactory, err := networkquality.NewOptionalHTTP3Factory(dialer, commandNetworkQualityFlagHTTP3)
-	if err != nil {
-		return err
-	}
-
-	fmt.Fprintln(os.Stderr, "==== NETWORK QUALITY TEST ====")
-
-	result, err := networkquality.Run(networkquality.Options{
-		ConfigURL:            commandNetworkQualityFlagConfigURL,
-		HTTPClient:           httpClient,
-		NewMeasurementClient: measurementClientFactory,
-		Serial:               commandNetworkQualityFlagSerial,
-		MaxRuntime:           time.Duration(commandNetworkQualityFlagMaxRuntime) * time.Second,
-		Context:              globalCtx,
-		OnProgress: func(p networkquality.Progress) {
-			if !commandNetworkQualityFlagSerial && p.Phase != networkquality.PhaseIdle {
-				fmt.Fprintf(os.Stderr, "\rDownload: %s  RPM: %d  Upload: %s  RPM: %d",
-					networkquality.FormatBitrate(p.DownloadCapacity), p.DownloadRPM,
-					networkquality.FormatBitrate(p.UploadCapacity), p.UploadRPM)
-				return
-			}
-			switch networkquality.Phase(p.Phase) {
-			case networkquality.PhaseIdle:
-				if p.IdleLatencyMs > 0 {
-					fmt.Fprintf(os.Stderr, "\rIdle Latency: %d ms", p.IdleLatencyMs)
-				} else {
-					fmt.Fprint(os.Stderr, "\rMeasuring idle latency...")
-				}
-			case networkquality.PhaseDownload:
-				fmt.Fprintf(os.Stderr, "\rDownload: %s  RPM: %d",
-					networkquality.FormatBitrate(p.DownloadCapacity), p.DownloadRPM)
-			case networkquality.PhaseUpload:
-				fmt.Fprintf(os.Stderr, "\rUpload: %s  RPM: %d",
-					networkquality.FormatBitrate(p.UploadCapacity), p.UploadRPM)
-			}
-		},
-	})
-	if err != nil {
-		return err
-	}
-
-	fmt.Fprintln(os.Stderr)
-	fmt.Fprintln(os.Stderr, strings.Repeat("-", 40))
-	fmt.Fprintf(os.Stderr, "Idle Latency:            %d ms\n", result.IdleLatencyMs)
-	fmt.Fprintf(os.Stderr, "Download Capacity:       %-20s Accuracy: %s\n", networkquality.FormatBitrate(result.DownloadCapacity), result.DownloadCapacityAccuracy)
-	fmt.Fprintf(os.Stderr, "Upload Capacity:         %-20s Accuracy: %s\n", networkquality.FormatBitrate(result.UploadCapacity), result.UploadCapacityAccuracy)
-	fmt.Fprintf(os.Stderr, "Download Responsiveness: %-20s Accuracy: %s\n", fmt.Sprintf("%d RPM", result.DownloadRPM), result.DownloadRPMAccuracy)
-	fmt.Fprintf(os.Stderr, "Upload Responsiveness:   %-20s Accuracy: %s\n", fmt.Sprintf("%d RPM", result.UploadRPM), result.UploadRPMAccuracy)
-	return nil
-}

cmd/sing-box/cmd_tools_stun.go

@@ -1,79 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"os"
-
-	"github.com/sagernet/sing-box/common/stun"
-	"github.com/sagernet/sing-box/log"
-
-	"github.com/spf13/cobra"
-)
-
-var commandSTUNFlagServer string
-
-var commandSTUN = &cobra.Command{
-	Use:   "stun",
-	Short: "Run a STUN test",
-	Args:  cobra.NoArgs,
-	Run: func(cmd *cobra.Command, args []string) {
-		err := runSTUN()
-		if err != nil {
-			log.Fatal(err)
-		}
-	},
-}
-
-func init() {
-	commandSTUN.Flags().StringVarP(&commandSTUNFlagServer, "server", "s", stun.DefaultServer, "STUN server address")
-	commandTools.AddCommand(commandSTUN)
-}
-
-func runSTUN() error {
-	instance, err := createPreStartedClient()
-	if err != nil {
-		return err
-	}
-	defer instance.Close()
-
-	dialer, err := createDialer(instance, commandToolsFlagOutbound)
-	if err != nil {
-		return err
-	}
-
-	fmt.Fprintln(os.Stderr, "==== STUN TEST ====")
-
-	result, err := stun.Run(stun.Options{
-		Server:  commandSTUNFlagServer,
-		Dialer:  dialer,
-		Context: globalCtx,
-		OnProgress: func(p stun.Progress) {
-			switch p.Phase {
-			case stun.PhaseBinding:
-				if p.ExternalAddr != "" {
-					fmt.Fprintf(os.Stderr, "\rExternal Address: %s (%d ms)", p.ExternalAddr, p.LatencyMs)
-				} else {
-					fmt.Fprint(os.Stderr, "\rSending binding request...")
-				}
-			case stun.PhaseNATMapping:
-				fmt.Fprint(os.Stderr, "\rDetecting NAT mapping behavior...")
-			case stun.PhaseNATFiltering:
-				fmt.Fprint(os.Stderr, "\rDetecting NAT filtering behavior...")
-			}
-		},
-	})
-	if err != nil {
-		return err
-	}
-
-	fmt.Fprintln(os.Stderr)
-	fmt.Fprintf(os.Stderr, "External Address: %s\n", result.ExternalAddr)
-	fmt.Fprintf(os.Stderr, "Latency:          %d ms\n", result.LatencyMs)
-	if result.NATTypeSupported {
-		fmt.Fprintf(os.Stderr, "NAT Mapping:      %s\n", result.NATMapping)
-		fmt.Fprintf(os.Stderr, "NAT Filtering:    %s\n", result.NATFiltering)
-	} else {
-		fmt.Fprintln(os.Stderr, "NAT Type Detection: not supported by server")
-	}
-	return nil
-}

common/certificate/store.go

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

common/dialer/default.go

@@ -149,10 +149,7 @@ func NewDefault(ctx context.Context, options option.DialerOptions) (*DefaultDial
 	} else {
 		dialer.Timeout = C.TCPConnectTimeout
 	}
-	if options.DisableTCPKeepAlive {
+	if !options.DisableTCPKeepAlive {
-		dialer.KeepAlive = -1
-		dialer.KeepAliveConfig.Enable = false
-	} else {
 		keepIdle := time.Duration(options.TCPKeepAlive)
 		if keepIdle == 0 {
 			keepIdle = C.TCPKeepAliveInitial

common/dialer/detour.go

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

common/dialer/dialer.go

@@ -25,7 +25,6 @@ type Options struct {
 	NewDialer        bool
 	LegacyDNSDialer  bool
 	DirectOutbound   bool
-	DefaultOutbound  bool
 }
 
 // TODO: merge with NewWithOptions
@@ -43,26 +42,19 @@ func NewWithOptions(options Options) (N.Dialer, error) {
 		dialer N.Dialer
 		err    error
 	)
-	hasDetour := dialOptions.Detour != "" || options.DefaultOutbound
 	if dialOptions.Detour != "" {
 		outboundManager := service.FromContext[adapter.OutboundManager](options.Context)
 		if outboundManager == nil {
 			return nil, E.New("missing outbound manager")
 		}
 		dialer = NewDetour(outboundManager, dialOptions.Detour, options.LegacyDNSDialer)
-	} else if options.DefaultOutbound {
-		outboundManager := service.FromContext[adapter.OutboundManager](options.Context)
-		if outboundManager == nil {
-			return nil, E.New("missing outbound manager")
-		}
-		dialer = NewDefaultOutboundDetour(outboundManager)
 	} else {
 		dialer, err = NewDefault(options.Context, dialOptions)
 		if err != nil {
 			return nil, err
 		}
 	}
-	if options.RemoteIsDomain && (!hasDetour || options.ResolverOnDetour || dialOptions.DomainResolver != nil && dialOptions.DomainResolver.Server != "") {
+	if options.RemoteIsDomain && (dialOptions.Detour == "" || options.ResolverOnDetour || dialOptions.DomainResolver != nil && dialOptions.DomainResolver.Server != "") {
 		networkManager := service.FromContext[adapter.NetworkManager](options.Context)
 		dnsTransport := service.FromContext[adapter.DNSTransportManager](options.Context)
 		var defaultOptions adapter.NetworkOptions
@@ -95,12 +87,11 @@ func NewWithOptions(options Options) (N.Dialer, error) {
 			}
 			server = dialOptions.DomainResolver.Server
 			dnsQueryOptions = adapter.DNSQueryOptions{
-				Transport:              transport,
+				Transport:    transport,
-				Strategy:               strategy,
+				Strategy:     strategy,
-				DisableCache:           dialOptions.DomainResolver.DisableCache,
+				DisableCache: dialOptions.DomainResolver.DisableCache,
-				DisableOptimisticCache: dialOptions.DomainResolver.DisableOptimisticCache,
+				RewriteTTL:   dialOptions.DomainResolver.RewriteTTL,
-				RewriteTTL:             dialOptions.DomainResolver.RewriteTTL,
+				ClientSubnet: dialOptions.DomainResolver.ClientSubnet.Build(netip.Prefix{}),
-				ClientSubnet:           dialOptions.DomainResolver.ClientSubnet.Build(netip.Prefix{}),
 			}
 			resolveFallbackDelay = time.Duration(dialOptions.FallbackDelay)
 		} else if options.DirectResolver {

common/httpclient/client.go

@@ -1,154 +0,0 @@
-package httpclient
-
-import (
-	"context"
-	"io"
-	"net/http"
-	"time"
-
-	"github.com/sagernet/sing-box/common/dialer"
-	"github.com/sagernet/sing-box/common/tls"
-	"github.com/sagernet/sing-box/option"
-	"github.com/sagernet/sing/common"
-	E "github.com/sagernet/sing/common/exceptions"
-	"github.com/sagernet/sing/common/logger"
-	N "github.com/sagernet/sing/common/network"
-)
-
-type httpTransport interface {
-	http.RoundTripper
-	CloseIdleConnections()
-	Clone() httpTransport
-}
-
-type Client struct {
-	transport httpTransport
-	headers   http.Header
-	host      string
-	tag       string
-}
-
-func NewClient(ctx context.Context, logger logger.ContextLogger, tag string, options option.HTTPClientOptions) (*Client, error) {
-	rawDialer, err := dialer.NewWithOptions(dialer.Options{
-		Context:          ctx,
-		Options:          options.DialerOptions,
-		RemoteIsDomain:   true,
-		ResolverOnDetour: options.ResolveOnDetour,
-		NewDialer:        options.ResolveOnDetour,
-		DefaultOutbound:  options.DefaultOutbound,
-	})
-	if err != nil {
-		return nil, err
-	}
-	tlsOptions := common.PtrValueOrDefault(options.TLS)
-	tlsOptions.Enabled = true
-	baseTLSConfig, err := tls.NewClientWithOptions(tls.ClientOptions{
-		Context:              ctx,
-		Logger:               logger,
-		Options:              tlsOptions,
-		AllowEmptyServerName: true,
-	})
-	if err != nil {
-		return nil, err
-	}
-	return NewClientWithDialer(rawDialer, baseTLSConfig, tag, options)
-}
-
-func NewClientWithDialer(rawDialer N.Dialer, baseTLSConfig tls.Config, tag string, options option.HTTPClientOptions) (*Client, error) {
-	headers := options.Headers.Build()
-	host := headers.Get("Host")
-	headers.Del("Host")
-	transport, err := newTransport(rawDialer, baseTLSConfig, options)
-	if err != nil {
-		return nil, err
-	}
-	return &Client{
-		transport: transport,
-		headers:   headers,
-		host:      host,
-		tag:       tag,
-	}, nil
-}
-
-func newTransport(rawDialer N.Dialer, baseTLSConfig tls.Config, options option.HTTPClientOptions) (httpTransport, error) {
-	version := options.Version
-	if version == 0 {
-		version = 2
-	}
-	fallbackDelay := time.Duration(options.DialerOptions.FallbackDelay)
-	if fallbackDelay == 0 {
-		fallbackDelay = 300 * time.Millisecond
-	}
-	var transport httpTransport
-	var err error
-	switch version {
-	case 1:
-		transport = newHTTP1Transport(rawDialer, baseTLSConfig)
-	case 2:
-		if options.DisableVersionFallback {
-			transport, err = newHTTP2Transport(rawDialer, baseTLSConfig, options.HTTP2Options)
-		} else {
-			transport, err = newHTTP2FallbackTransport(rawDialer, baseTLSConfig, options.HTTP2Options)
-		}
-	case 3:
-		if baseTLSConfig != nil {
-			_, err = baseTLSConfig.STDConfig()
-			if err != nil {
-				return nil, err
-			}
-		}
-		if options.DisableVersionFallback {
-			transport, err = newHTTP3Transport(rawDialer, baseTLSConfig, options.HTTP3Options)
-		} else {
-			var h2Fallback httpTransport
-			h2Fallback, err = newHTTP2FallbackTransport(rawDialer, baseTLSConfig, options.HTTP2Options)
-			if err != nil {
-				return nil, err
-			}
-			transport, err = newHTTP3FallbackTransport(rawDialer, baseTLSConfig, h2Fallback, options.HTTP3Options, fallbackDelay)
-		}
-	default:
-		return nil, E.New("unknown HTTP version: ", version)
-	}
-	if err != nil {
-		return nil, err
-	}
-	return transport, nil
-}
-
-func (c *Client) RoundTrip(request *http.Request) (*http.Response, error) {
-	if c.tag == "" && len(c.headers) == 0 && c.host == "" {
-		return c.transport.RoundTrip(request)
-	}
-	if c.tag != "" {
-		if transportTag, loaded := transportTagFromContext(request.Context()); loaded && transportTag == c.tag {
-			return nil, E.New("HTTP request loopback in transport[", c.tag, "]")
-		}
-		request = request.Clone(contextWithTransportTag(request.Context(), c.tag))
-	} else {
-		request = request.Clone(request.Context())
-	}
-	applyHeaders(request, c.headers, c.host)
-	return c.transport.RoundTrip(request)
-}
-
-func (c *Client) CloseIdleConnections() {
-	c.transport.CloseIdleConnections()
-}
-
-func (c *Client) Clone() *Client {
-	return &Client{
-		transport: c.transport.Clone(),
-		headers:   c.headers.Clone(),
-		host:      c.host,
-		tag:       c.tag,
-	}
-}
-
-func (c *Client) Close() error {
-	c.CloseIdleConnections()
-	if closer, isCloser := c.transport.(io.Closer); isCloser {
-		return closer.Close()
-	}
-	return nil
-}

common/httpclient/context.go

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

common/httpclient/helpers.go

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

common/httpclient/http1_transport.go

@@ -1,41 +0,0 @@
-package httpclient
-
-import (
-	"context"
-	"net"
-	"net/http"
-
-	"github.com/sagernet/sing-box/common/tls"
-	M "github.com/sagernet/sing/common/metadata"
-	N "github.com/sagernet/sing/common/network"
-)
-
-type http1Transport struct {
-	transport *http.Transport
-}
-
-func newHTTP1Transport(rawDialer N.Dialer, baseTLSConfig tls.Config) *http1Transport {
-	transport := &http.Transport{
-		DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
-			return rawDialer.DialContext(ctx, network, M.ParseSocksaddr(addr))
-		},
-	}
-	if baseTLSConfig != nil {
-		transport.DialTLSContext = func(ctx context.Context, network, addr string) (net.Conn, error) {
-			return dialTLS(ctx, rawDialer, baseTLSConfig, M.ParseSocksaddr(addr), []string{"http/1.1"}, "")
-		}
-	}
-	return &http1Transport{transport: transport}
-}
-
-func (t *http1Transport) RoundTrip(request *http.Request) (*http.Response, error) {
-	return t.transport.RoundTrip(request)
-}
-
-func (t *http1Transport) CloseIdleConnections() {
-	t.transport.CloseIdleConnections()
-}
-
-func (t *http1Transport) Clone() httpTransport {
-	return &http1Transport{transport: t.transport.Clone()}
-}

common/httpclient/http2_config.go

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

common/httpclient/http2_fallback_transport.go

@@ -1,87 +0,0 @@
-package httpclient
-
-import (
-	"context"
-	stdTLS "crypto/tls"
-	"errors"
-	"net"
-	"net/http"
-	"sync/atomic"
-
-	"github.com/sagernet/sing-box/common/tls"
-	"github.com/sagernet/sing-box/option"
-	E "github.com/sagernet/sing/common/exceptions"
-	M "github.com/sagernet/sing/common/metadata"
-	N "github.com/sagernet/sing/common/network"
-
-	"golang.org/x/net/http2"
-)
-
-var errHTTP2Fallback = E.New("fallback to HTTP/1.1")
-
-type http2FallbackTransport struct {
-	h2Transport *http2.Transport
-	h1Transport *http1Transport
-	h2Fallback  *atomic.Bool
-}
-
-func newHTTP2FallbackTransport(rawDialer N.Dialer, baseTLSConfig tls.Config, options option.HTTP2Options) (*http2FallbackTransport, error) {
-	h1 := newHTTP1Transport(rawDialer, baseTLSConfig)
-	var fallback atomic.Bool
-	h2Transport, err := ConfigureHTTP2Transport(options)
-	if err != nil {
-		return nil, err
-	}
-	h2Transport.DialTLSContext = func(ctx context.Context, network, addr string, _ *stdTLS.Config) (net.Conn, error) {
-		conn, dialErr := dialTLS(ctx, rawDialer, baseTLSConfig, M.ParseSocksaddr(addr), []string{http2.NextProtoTLS, "http/1.1"}, http2.NextProtoTLS)
-		if dialErr != nil {
-			if errors.Is(dialErr, errHTTP2Fallback) {
-				fallback.Store(true)
-			}
-			return nil, dialErr
-		}
-		return conn, nil
-	}
-	return &http2FallbackTransport{
-		h2Transport: h2Transport,
-		h1Transport: h1,
-		h2Fallback:  &fallback,
-	}, nil
-}
-
-func (t *http2FallbackTransport) RoundTrip(request *http.Request) (*http.Response, error) {
-	return t.roundTrip(request, true)
-}
-
-func (t *http2FallbackTransport) roundTrip(request *http.Request, allowHTTP1Fallback bool) (*http.Response, error) {
-	if request.URL.Scheme != "https" || requestRequiresHTTP1(request) {
-		return t.h1Transport.RoundTrip(request)
-	}
-	if t.h2Fallback.Load() {
-		if !allowHTTP1Fallback {
-			return nil, errHTTP2Fallback
-		}
-		return t.h1Transport.RoundTrip(request)
-	}
-	response, err := t.h2Transport.RoundTrip(request)
-	if err == nil {
-		return response, nil
-	}
-	if !errors.Is(err, errHTTP2Fallback) || !allowHTTP1Fallback {
-		return nil, err
-	}
-	return t.h1Transport.RoundTrip(cloneRequestForRetry(request))
-}
-
-func (t *http2FallbackTransport) CloseIdleConnections() {
-	t.h1Transport.CloseIdleConnections()
-	t.h2Transport.CloseIdleConnections()
-}
-
-func (t *http2FallbackTransport) Clone() httpTransport {
-	return &http2FallbackTransport{
-		h2Transport: CloneHTTP2Transport(t.h2Transport),
-		h1Transport: t.h1Transport.Clone().(*http1Transport),
-		h2Fallback:  t.h2Fallback,
-	}
-}

common/httpclient/http2_transport.go

@@ -1,54 +0,0 @@
-package httpclient
-
-import (
-	"context"
-	stdTLS "crypto/tls"
-	"net"
-	"net/http"
-
-	"github.com/sagernet/sing-box/common/tls"
-	"github.com/sagernet/sing-box/option"
-	M "github.com/sagernet/sing/common/metadata"
-	N "github.com/sagernet/sing/common/network"
-
-	"golang.org/x/net/http2"
-)
-
-type http2Transport struct {
-	h2Transport *http2.Transport
-	h1Transport *http1Transport
-}
-
-func newHTTP2Transport(rawDialer N.Dialer, baseTLSConfig tls.Config, options option.HTTP2Options) (*http2Transport, error) {
-	h1 := newHTTP1Transport(rawDialer, baseTLSConfig)
-	h2Transport, err := ConfigureHTTP2Transport(options)
-	if err != nil {
-		return nil, err
-	}
-	h2Transport.DialTLSContext = func(ctx context.Context, network, addr string, _ *stdTLS.Config) (net.Conn, error) {
-		return dialTLS(ctx, rawDialer, baseTLSConfig, M.ParseSocksaddr(addr), []string{http2.NextProtoTLS}, http2.NextProtoTLS)
-	}
-	return &http2Transport{
-		h2Transport: h2Transport,
-		h1Transport: h1,
-	}, nil
-}
-
-func (t *http2Transport) RoundTrip(request *http.Request) (*http.Response, error) {
-	if request.URL.Scheme != "https" || requestRequiresHTTP1(request) {
-		return t.h1Transport.RoundTrip(request)
-	}
-	return t.h2Transport.RoundTrip(request)
-}
-
-func (t *http2Transport) CloseIdleConnections() {
-	t.h1Transport.CloseIdleConnections()
-	t.h2Transport.CloseIdleConnections()
-}
-
-func (t *http2Transport) Clone() httpTransport {
-	return &http2Transport{
-		h2Transport: CloneHTTP2Transport(t.h2Transport),
-		h1Transport: t.h1Transport.Clone().(*http1Transport),
-	}
-}

common/httpclient/http3_transport.go

@@ -1,311 +0,0 @@
-//go:build with_quic
-
-package httpclient
-
-import (
-	"context"
-	stdTLS "crypto/tls"
-	"errors"
-	"net/http"
-	"sync"
-	"time"
-
-	"github.com/sagernet/quic-go"
-	"github.com/sagernet/quic-go/http3"
-	"github.com/sagernet/sing-box/common/tls"
-	"github.com/sagernet/sing-box/option"
-	"github.com/sagernet/sing/common/bufio"
-	E "github.com/sagernet/sing/common/exceptions"
-	M "github.com/sagernet/sing/common/metadata"
-	N "github.com/sagernet/sing/common/network"
-)
-
-type http3Transport struct {
-	h3Transport *http3.Transport
-}
-
-type http3FallbackTransport struct {
-	h3Transport   *http3.Transport
-	h2Fallback    httpTransport
-	fallbackDelay time.Duration
-	brokenAccess  sync.Mutex
-	brokenUntil   time.Time
-	brokenBackoff time.Duration
-}
-
-func newHTTP3RoundTripper(
-	rawDialer N.Dialer,
-	baseTLSConfig tls.Config,
-	options option.QUICOptions,
-) *http3.Transport {
-	var handshakeTimeout time.Duration
-	if baseTLSConfig != nil {
-		handshakeTimeout = baseTLSConfig.HandshakeTimeout()
-	}
-	quicConfig := &quic.Config{
-		InitialStreamReceiveWindow:     options.StreamReceiveWindow.Value(),
-		MaxStreamReceiveWindow:         options.StreamReceiveWindow.Value(),
-		InitialConnectionReceiveWindow: options.ConnectionReceiveWindow.Value(),
-		MaxConnectionReceiveWindow:     options.ConnectionReceiveWindow.Value(),
-		KeepAlivePeriod:                time.Duration(options.KeepAlivePeriod),
-		MaxIdleTimeout:                 time.Duration(options.IdleTimeout),
-		DisablePathMTUDiscovery:        options.DisablePathMTUDiscovery,
-	}
-	if options.InitialPacketSize > 0 {
-		quicConfig.InitialPacketSize = uint16(options.InitialPacketSize)
-	}
-	if options.MaxConcurrentStreams > 0 {
-		quicConfig.MaxIncomingStreams = int64(options.MaxConcurrentStreams)
-	}
-	if handshakeTimeout > 0 {
-		quicConfig.HandshakeIdleTimeout = handshakeTimeout
-	}
-	h3Transport := &http3.Transport{
-		TLSClientConfig: &stdTLS.Config{},
-		QUICConfig:      quicConfig,
-		Dial: func(ctx context.Context, addr string, tlsConfig *stdTLS.Config, quicConfig *quic.Config) (*quic.Conn, error) {
-			if handshakeTimeout > 0 && quicConfig.HandshakeIdleTimeout == 0 {
-				quicConfig = quicConfig.Clone()
-				quicConfig.HandshakeIdleTimeout = handshakeTimeout
-			}
-			if baseTLSConfig != nil {
-				var err error
-				tlsConfig, err = buildSTDTLSConfig(baseTLSConfig, M.ParseSocksaddr(addr), []string{http3.NextProtoH3})
-				if err != nil {
-					return nil, err
-				}
-			} else {
-				tlsConfig = tlsConfig.Clone()
-				tlsConfig.NextProtos = []string{http3.NextProtoH3}
-			}
-			conn, err := rawDialer.DialContext(ctx, N.NetworkUDP, M.ParseSocksaddr(addr))
-			if err != nil {
-				return nil, err
-			}
-			quicConn, err := quic.DialEarly(ctx, bufio.NewUnbindPacketConn(conn), conn.RemoteAddr(), tlsConfig, quicConfig)
-			if err != nil {
-				conn.Close()
-				return nil, err
-			}
-			return quicConn, nil
-		},
-	}
-	return h3Transport
-}
-
-func newHTTP3Transport(
-	rawDialer N.Dialer,
-	baseTLSConfig tls.Config,
-	options option.QUICOptions,
-) (httpTransport, error) {
-	return &http3Transport{
-		h3Transport: newHTTP3RoundTripper(rawDialer, baseTLSConfig, options),
-	}, nil
-}
-
-func newHTTP3FallbackTransport(
-	rawDialer N.Dialer,
-	baseTLSConfig tls.Config,
-	h2Fallback httpTransport,
-	options option.QUICOptions,
-	fallbackDelay time.Duration,
-) (httpTransport, error) {
-	return &http3FallbackTransport{
-		h3Transport:   newHTTP3RoundTripper(rawDialer, baseTLSConfig, options),
-		h2Fallback:    h2Fallback,
-		fallbackDelay: fallbackDelay,
-	}, nil
-}
-
-func (t *http3Transport) RoundTrip(request *http.Request) (*http.Response, error) {
-	return t.h3Transport.RoundTrip(request)
-}
-
-func (t *http3Transport) CloseIdleConnections() {
-	t.h3Transport.CloseIdleConnections()
-}
-
-func (t *http3Transport) Close() error {
-	t.CloseIdleConnections()
-	return t.h3Transport.Close()
-}
-
-func (t *http3Transport) Clone() httpTransport {
-	return &http3Transport{
-		h3Transport: t.h3Transport,
-	}
-}
-
-func (t *http3FallbackTransport) RoundTrip(request *http.Request) (*http.Response, error) {
-	if request.URL.Scheme != "https" || requestRequiresHTTP1(request) {
-		return t.h2Fallback.RoundTrip(request)
-	}
-	return t.roundTripHTTP3(request)
-}
-
-func (t *http3FallbackTransport) roundTripHTTP3(request *http.Request) (*http.Response, error) {
-	if t.h3Broken() {
-		return t.h2FallbackRoundTrip(request)
-	}
-	response, err := t.h3Transport.RoundTripOpt(request, http3.RoundTripOpt{OnlyCachedConn: true})
-	if err == nil {
-		t.clearH3Broken()
-		return response, nil
-	}
-	if !errors.Is(err, http3.ErrNoCachedConn) {
-		t.markH3Broken()
-		return t.h2FallbackRoundTrip(cloneRequestForRetry(request))
-	}
-	if !requestReplayable(request) {
-		response, err = t.h3Transport.RoundTrip(request)
-		if err == nil {
-			t.clearH3Broken()
-			return response, nil
-		}
-		t.markH3Broken()
-		return nil, err
-	}
-	return t.roundTripHTTP3Race(request)
-}
-
-func (t *http3FallbackTransport) roundTripHTTP3Race(request *http.Request) (*http.Response, error) {
-	ctx, cancel := context.WithCancel(request.Context())
-	defer cancel()
-	type result struct {
-		response *http.Response
-		err      error
-		h3       bool
-	}
-	results := make(chan result, 2)
-	startRoundTrip := func(request *http.Request, useH3 bool) {
-		request = request.WithContext(ctx)
-		var (
-			response *http.Response
-			err      error
-		)
-		if useH3 {
-			response, err = t.h3Transport.RoundTrip(request)
-		} else {
-			response, err = t.h2FallbackRoundTrip(request)
-		}
-		results <- result{response: response, err: err, h3: useH3}
-	}
-	goroutines := 1
-	received := 0
-	drainRemaining := func() {
-		cancel()
-		for range goroutines - received {
-			go func() {
-				loser := <-results
-				if loser.response != nil && loser.response.Body != nil {
-					loser.response.Body.Close()
-				}
-			}()
-		}
-	}
-	go startRoundTrip(cloneRequestForRetry(request), true)
-	timer := time.NewTimer(t.fallbackDelay)
-	defer timer.Stop()
-	var (
-		h3Err       error
-		fallbackErr error
-	)
-	for {
-		select {
-		case <-timer.C:
-			if goroutines == 1 {
-				goroutines++
-				go startRoundTrip(cloneRequestForRetry(request), false)
-			}
-		case raceResult := <-results:
-			received++
-			if raceResult.err == nil {
-				if raceResult.h3 {
-					t.clearH3Broken()
-				}
-				drainRemaining()
-				return raceResult.response, nil
-			}
-			if raceResult.h3 {
-				t.markH3Broken()
-				h3Err = raceResult.err
-				if goroutines == 1 {
-					goroutines++
-					if !timer.Stop() {
-						select {
-						case <-timer.C:
-						default:
-						}
-					}
-					go startRoundTrip(cloneRequestForRetry(request), false)
-				}
-			} else {
-				fallbackErr = raceResult.err
-			}
-			if received < goroutines {
-				continue
-			}
-			drainRemaining()
-			switch {
-			case h3Err != nil && fallbackErr != nil:
-				return nil, E.Errors(h3Err, fallbackErr)
-			case fallbackErr != nil:
-				return nil, fallbackErr
-			default:
-				return nil, h3Err
-			}
-		}
-	}
-}
-
-func (t *http3FallbackTransport) h2FallbackRoundTrip(request *http.Request) (*http.Response, error) {
-	if fallback, isFallback := t.h2Fallback.(*http2FallbackTransport); isFallback {
-		return fallback.roundTrip(request, true)
-	}
-	return t.h2Fallback.RoundTrip(request)
-}
-
-func (t *http3FallbackTransport) CloseIdleConnections() {
-	t.h3Transport.CloseIdleConnections()
-	t.h2Fallback.CloseIdleConnections()
-}
-
-func (t *http3FallbackTransport) Close() error {
-	t.CloseIdleConnections()
-	return t.h3Transport.Close()
-}
-
-func (t *http3FallbackTransport) Clone() httpTransport {
-	return &http3FallbackTransport{
-		h3Transport:   t.h3Transport,
-		h2Fallback:    t.h2Fallback.Clone(),
-		fallbackDelay: t.fallbackDelay,
-	}
-}
-
-func (t *http3FallbackTransport) h3Broken() bool {
-	t.brokenAccess.Lock()
-	defer t.brokenAccess.Unlock()
-	return !t.brokenUntil.IsZero() && time.Now().Before(t.brokenUntil)
-}
-
-func (t *http3FallbackTransport) clearH3Broken() {
-	t.brokenAccess.Lock()
-	t.brokenUntil = time.Time{}
-	t.brokenBackoff = 0
-	t.brokenAccess.Unlock()
-}
-
-func (t *http3FallbackTransport) markH3Broken() {
-	t.brokenAccess.Lock()
-	defer t.brokenAccess.Unlock()
-	if t.brokenBackoff == 0 {
-		t.brokenBackoff = 5 * time.Minute
-	} else {
-		t.brokenBackoff *= 2
-		if t.brokenBackoff > 48*time.Hour {
-			t.brokenBackoff = 48 * time.Hour
-		}
-	}
-	t.brokenUntil = time.Now().Add(t.brokenBackoff)
-}

common/httpclient/http3_transport_stub.go

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

common/httpclient/manager.go

@@ -1,136 +0,0 @@
-package httpclient
-
-import (
-	"context"
-	"net/http"
-	"sync"
-
-	"github.com/sagernet/sing-box/adapter"
-	"github.com/sagernet/sing-box/log"
-	"github.com/sagernet/sing-box/option"
-	E "github.com/sagernet/sing/common/exceptions"
-	"github.com/sagernet/sing/common/logger"
-)
-
-var (
-	_ adapter.HTTPClientManager = (*Manager)(nil)
-	_ adapter.LifecycleService  = (*Manager)(nil)
-)
-
-type Manager struct {
-	ctx                      context.Context
-	logger                   log.ContextLogger
-	access                   sync.Mutex
-	defines                  map[string]option.HTTPClient
-	clients                  map[string]*Client
-	defaultTag               string
-	defaultTransport         http.RoundTripper
-	defaultTransportFallback func() (*Client, error)
-	fallbackClient           *Client
-}
-
-func NewManager(ctx context.Context, logger log.ContextLogger, clients []option.HTTPClient, defaultHTTPClient string) *Manager {
-	defines := make(map[string]option.HTTPClient, len(clients))
-	for _, client := range clients {
-		defines[client.Tag] = client
-	}
-	defaultTag := defaultHTTPClient
-	if defaultTag == "" && len(clients) > 0 {
-		defaultTag = clients[0].Tag
-	}
-	return &Manager{
-		ctx:        ctx,
-		logger:     logger,
-		defines:    defines,
-		clients:    make(map[string]*Client),
-		defaultTag: defaultTag,
-	}
-}
-
-func (m *Manager) Initialize(defaultTransportFallback func() (*Client, error)) {
-	m.defaultTransportFallback = defaultTransportFallback
-}
-
-func (m *Manager) Name() string {
-	return "http-client"
-}
-
-func (m *Manager) Start(stage adapter.StartStage) error {
-	if stage != adapter.StartStateStart {
-		return nil
-	}
-	if m.defaultTag != "" {
-		transport, err := m.resolveShared(m.defaultTag)
-		if err != nil {
-			return E.Cause(err, "resolve default http client")
-		}
-		m.defaultTransport = transport
-	} else if m.defaultTransportFallback != nil {
-		client, err := m.defaultTransportFallback()
-		if err != nil {
-			return E.Cause(err, "create default http client")
-		}
-		m.defaultTransport = client
-		m.fallbackClient = client
-	}
-	return nil
-}
-
-func (m *Manager) DefaultTransport() http.RoundTripper {
-	return m.defaultTransport
-}
-
-func (m *Manager) ResolveTransport(logger logger.ContextLogger, options option.HTTPClientOptions) (http.RoundTripper, error) {
-	if options.Tag != "" {
-		if options.ResolveOnDetour {
-			define, loaded := m.defines[options.Tag]
-			if !loaded {
-				return nil, E.New("http_client not found: ", options.Tag)
-			}
-			resolvedOptions := define.Options()
-			resolvedOptions.ResolveOnDetour = true
-			return NewClient(m.ctx, logger, options.Tag, resolvedOptions)
-		}
-		return m.resolveShared(options.Tag)
-	}
-	return NewClient(m.ctx, logger, "", options)
-}
-
-func (m *Manager) resolveShared(tag string) (http.RoundTripper, error) {
-	m.access.Lock()
-	defer m.access.Unlock()
-	if client, loaded := m.clients[tag]; loaded {
-		return client, nil
-	}
-	define, loaded := m.defines[tag]
-	if !loaded {
-		return nil, E.New("http_client not found: ", tag)
-	}
-	client, err := NewClient(m.ctx, m.logger, tag, define.Options())
-	if err != nil {
-		return nil, E.Cause(err, "create shared http_client[", tag, "]")
-	}
-	m.clients[tag] = client
-	return client, nil
-}
-
-func (m *Manager) Close() error {
-	m.access.Lock()
-	defer m.access.Unlock()
-	if m.clients == nil {
-		return nil
-	}
-	var err error
-	for _, client := range m.clients {
-		err = E.Append(err, client.Close(), func(err error) error {
-			return E.Cause(err, "close http client")
-		})
-	}
-	if m.fallbackClient != nil {
-		err = E.Append(err, m.fallbackClient.Close(), func(err error) error {
-			return E.Cause(err, "close default http client")
-		})
-	}
-	m.clients = nil
-	return err
-}

common/listener/listener_tcp.go

@@ -37,10 +37,7 @@ func (l *Listener) ListenTCP() (net.Listener, error) {
 	if l.listenOptions.ReuseAddr {
 		listenConfig.Control = control.Append(listenConfig.Control, control.ReuseAddr())
 	}
-	if l.listenOptions.DisableTCPKeepAlive {
+	if !l.listenOptions.DisableTCPKeepAlive {
-		listenConfig.KeepAlive = -1
-		listenConfig.KeepAliveConfig.Enable = false
-	} else {
 		keepIdle := time.Duration(l.listenOptions.TCPKeepAlive)
 		if keepIdle == 0 {
 			keepIdle = C.TCPKeepAliveInitial

common/networkquality/http.go

@@ -1,142 +0,0 @@
-package networkquality
-
-import (
-	"context"
-	"fmt"
-	"net"
-	"net/http"
-	"strings"
-
-	C "github.com/sagernet/sing-box/constant"
-	sBufio "github.com/sagernet/sing/common/bufio"
-	E "github.com/sagernet/sing/common/exceptions"
-	M "github.com/sagernet/sing/common/metadata"
-	N "github.com/sagernet/sing/common/network"
-)
-
-func FormatBitrate(bps int64) string {
-	switch {
-	case bps >= 1_000_000_000:
-		return fmt.Sprintf("%.1f Gbps", float64(bps)/1_000_000_000)
-	case bps >= 1_000_000:
-		return fmt.Sprintf("%.1f Mbps", float64(bps)/1_000_000)
-	case bps >= 1_000:
-		return fmt.Sprintf("%.1f Kbps", float64(bps)/1_000)
-	default:
-		return fmt.Sprintf("%d bps", bps)
-	}
-}
-
-func NewHTTPClient(dialer N.Dialer) *http.Client {
-	transport := &http.Transport{
-		ForceAttemptHTTP2:   true,
-		TLSHandshakeTimeout: C.TCPTimeout,
-	}
-	if dialer != nil {
-		transport.DialContext = func(ctx context.Context, network string, addr string) (net.Conn, error) {
-			return dialer.DialContext(ctx, network, M.ParseSocksaddr(addr))
-		}
-	}
-	return &http.Client{Transport: transport}
-}
-
-func baseTransportFromClient(client *http.Client) (*http.Transport, error) {
-	if client == nil {
-		return nil, E.New("http client is nil")
-	}
-	if client.Transport == nil {
-		return http.DefaultTransport.(*http.Transport).Clone(), nil
-	}
-	transport, ok := client.Transport.(*http.Transport)
-	if !ok {
-		return nil, E.New("http client transport must be *http.Transport")
-	}
-	return transport.Clone(), nil
-}
-
-func newMeasurementClient(
-	baseClient *http.Client,
-	connectEndpoint string,
-	singleConnection bool,
-	disableKeepAlives bool,
-	readCounters []N.CountFunc,
-	writeCounters []N.CountFunc,
-) (*http.Client, error) {
-	transport, err := baseTransportFromClient(baseClient)
-	if err != nil {
-		return nil, err
-	}
-	transport.DisableCompression = true
-	transport.DisableKeepAlives = disableKeepAlives
-	if singleConnection {
-		transport.MaxConnsPerHost = 1
-		transport.MaxIdleConnsPerHost = 1
-		transport.MaxIdleConns = 1
-	}
-
-	baseDialContext := transport.DialContext
-	if baseDialContext == nil {
-		dialer := &net.Dialer{}
-		baseDialContext = dialer.DialContext
-	}
-	transport.DialContext = func(ctx context.Context, network string, addr string) (net.Conn, error) {
-		dialAddr := addr
-		if connectEndpoint != "" {
-			dialAddr = rewriteDialAddress(addr, connectEndpoint)
-		}
-		conn, dialErr := baseDialContext(ctx, network, dialAddr)
-		if dialErr != nil {
-			return nil, dialErr
-		}
-		if len(readCounters) > 0 || len(writeCounters) > 0 {
-			return sBufio.NewCounterConn(conn, readCounters, writeCounters), nil
-		}
-		return conn, nil
-	}
-
-	return &http.Client{
-		Transport:     transport,
-		CheckRedirect: baseClient.CheckRedirect,
-		Jar:           baseClient.Jar,
-		Timeout:       baseClient.Timeout,
-	}, nil
-}
-
-type MeasurementClientFactory func(
-	connectEndpoint string,
-	singleConnection bool,
-	disableKeepAlives bool,
-	readCounters []N.CountFunc,
-	writeCounters []N.CountFunc,
-) (*http.Client, error)
-
-func defaultMeasurementClientFactory(baseClient *http.Client) MeasurementClientFactory {
-	return func(connectEndpoint string, singleConnection, disableKeepAlives bool, readCounters, writeCounters []N.CountFunc) (*http.Client, error) {
-		return newMeasurementClient(baseClient, connectEndpoint, singleConnection, disableKeepAlives, readCounters, writeCounters)
-	}
-}
-
-func NewOptionalHTTP3Factory(dialer N.Dialer, useHTTP3 bool) (MeasurementClientFactory, error) {
-	if !useHTTP3 {
-		return nil, nil
-	}
-	return NewHTTP3MeasurementClientFactory(dialer)
-}
-
-func rewriteDialAddress(addr string, connectEndpoint string) string {
-	connectEndpoint = strings.TrimSpace(connectEndpoint)
-	host, port, err := net.SplitHostPort(addr)
-	if err != nil {
-		return addr
-	}
-	endpointHost, endpointPort, err := net.SplitHostPort(connectEndpoint)
-	if err == nil {
-		host = endpointHost
-		if endpointPort != "" {
-			port = endpointPort
-		}
-	} else if connectEndpoint != "" {
-		host = connectEndpoint
-	}
-	return net.JoinHostPort(host, port)
-}

common/networkquality/http3.go

@@ -1,55 +0,0 @@
-//go:build with_quic
-
-package networkquality
-
-import (
-	"context"
-	"crypto/tls"
-	"net"
-	"net/http"
-
-	"github.com/sagernet/quic-go"
-	"github.com/sagernet/quic-go/http3"
-	sBufio "github.com/sagernet/sing/common/bufio"
-	M "github.com/sagernet/sing/common/metadata"
-	N "github.com/sagernet/sing/common/network"
-)
-
-func NewHTTP3MeasurementClientFactory(dialer N.Dialer) (MeasurementClientFactory, error) {
-	// singleConnection and disableKeepAlives are not applied:
-	// HTTP/3 multiplexes streams over a single QUIC connection by default.
-	return func(connectEndpoint string, _, _ bool, readCounters, writeCounters []N.CountFunc) (*http.Client, error) {
-		transport := &http3.Transport{
-			Dial: func(ctx context.Context, addr string, tlsCfg *tls.Config, cfg *quic.Config) (*quic.Conn, error) {
-				dialAddr := addr
-				if connectEndpoint != "" {
-					dialAddr = rewriteDialAddress(addr, connectEndpoint)
-				}
-				destination := M.ParseSocksaddr(dialAddr)
-				var udpConn net.Conn
-				var dialErr error
-				if dialer != nil {
-					udpConn, dialErr = dialer.DialContext(ctx, N.NetworkUDP, destination)
-				} else {
-					var netDialer net.Dialer
-					udpConn, dialErr = netDialer.DialContext(ctx, N.NetworkUDP, destination.String())
-				}
-				if dialErr != nil {
-					return nil, dialErr
-				}
-				wrappedConn := udpConn
-				if len(readCounters) > 0 || len(writeCounters) > 0 {
-					wrappedConn = sBufio.NewCounterConn(udpConn, readCounters, writeCounters)
-				}
-				packetConn := sBufio.NewUnbindPacketConn(wrappedConn)
-				quicConn, dialErr := quic.DialEarly(ctx, packetConn, udpConn.RemoteAddr(), tlsCfg, cfg)
-				if dialErr != nil {
-					udpConn.Close()
-					return nil, dialErr
-				}
-				return quicConn, nil
-			},
-		}
-		return &http.Client{Transport: transport}, nil
-	}, nil
-}

common/networkquality/http3_stub.go

@@ -1,12 +0,0 @@
-//go:build !with_quic
-
-package networkquality
-
-import (
-	C "github.com/sagernet/sing-box/constant"
-	N "github.com/sagernet/sing/common/network"
-)
-
-func NewHTTP3MeasurementClientFactory(dialer N.Dialer) (MeasurementClientFactory, error) {
-	return nil, C.ErrQUICNotIncluded
-}

common/srs/binary.go

@@ -46,7 +46,6 @@ const (
 	ruleItemNetworkIsConstrained
 	ruleItemNetworkInterfaceAddress
 	ruleItemDefaultInterfaceAddress
-	ruleItemPackageNameRegex
 	ruleItemFinal uint8 = 0xFF
 )
 
@@ -216,8 +215,6 @@ func readDefaultRule(reader varbin.Reader, recover bool) (rule option.DefaultHea
 			rule.ProcessPathRegex, err = readRuleItemString(reader)
 		case ruleItemPackageName:
 			rule.PackageName, err = readRuleItemString(reader)
-		case ruleItemPackageNameRegex:
-			rule.PackageNameRegex, err = readRuleItemString(reader)
 		case ruleItemWIFISSID:
 			rule.WIFISSID, err = readRuleItemString(reader)
 		case ruleItemWIFIBSSID:
@@ -397,15 +394,6 @@ func writeDefaultRule(writer varbin.Writer, rule option.DefaultHeadlessRule, gen
 			return err
 		}
 	}
-	if len(rule.PackageNameRegex) > 0 {
-		if generateVersion < C.RuleSetVersion5 {
-			return E.New("`package_name_regex` rule item is only supported in version 5 or later")
-		}
-		err = writeRuleItemString(writer, ruleItemPackageNameRegex, rule.PackageNameRegex)
-		if err != nil {
-			return err
-		}
-	}
 	if len(rule.NetworkType) > 0 {
 		if generateVersion < C.RuleSetVersion3 {
 			return E.New("`network_type` rule item is only supported in version 3 or later")

common/stun/stun.go

@@ -1,612 +0,0 @@
-package stun
-
-import (
-	"context"
-	"crypto/rand"
-	"encoding/binary"
-	"fmt"
-	"net"
-	"net/netip"
-	"time"
-
-	"github.com/sagernet/sing/common/bufio"
-	"github.com/sagernet/sing/common/bufio/deadline"
-	E "github.com/sagernet/sing/common/exceptions"
-	M "github.com/sagernet/sing/common/metadata"
-	N "github.com/sagernet/sing/common/network"
-)
-
-const (
-	DefaultServer = "stun.voipgate.com:3478"
-
-	magicCookie = 0x2112A442
-	headerSize  = 20
-
-	bindingRequest         = 0x0001
-	bindingSuccessResponse = 0x0101
-	bindingErrorResponse   = 0x0111
-
-	attrMappedAddress    = 0x0001
-	attrChangeRequest    = 0x0003
-	attrErrorCode        = 0x0009
-	attrXORMappedAddress = 0x0020
-	attrOtherAddress     = 0x802c
-
-	familyIPv4 = 0x01
-	familyIPv6 = 0x02
-
-	changeIP   = 0x04
-	changePort = 0x02
-
-	defaultRTO    = 500 * time.Millisecond
-	minRTO        = 250 * time.Millisecond
-	maxRetransmit = 2
-)
-
-type Phase int32
-
-const (
-	PhaseBinding Phase = iota
-	PhaseNATMapping
-	PhaseNATFiltering
-	PhaseDone
-)
-
-type NATMapping int32
-
-const (
-	NATMappingUnknown NATMapping = iota
-	_                            // reserved
-	NATMappingEndpointIndependent
-	NATMappingAddressDependent
-	NATMappingAddressAndPortDependent
-)
-
-func (m NATMapping) String() string {
-	switch m {
-	case NATMappingEndpointIndependent:
-		return "Endpoint Independent"
-	case NATMappingAddressDependent:
-		return "Address Dependent"
-	case NATMappingAddressAndPortDependent:
-		return "Address and Port Dependent"
-	default:
-		return "Unknown"
-	}
-}
-
-type NATFiltering int32
-
-const (
-	NATFilteringUnknown NATFiltering = iota
-	NATFilteringEndpointIndependent
-	NATFilteringAddressDependent
-	NATFilteringAddressAndPortDependent
-)
-
-func (f NATFiltering) String() string {
-	switch f {
-	case NATFilteringEndpointIndependent:
-		return "Endpoint Independent"
-	case NATFilteringAddressDependent:
-		return "Address Dependent"
-	case NATFilteringAddressAndPortDependent:
-		return "Address and Port Dependent"
-	default:
-		return "Unknown"
-	}
-}
-
-type TransactionID [12]byte
-
-type Options struct {
-	Server     string
-	Dialer     N.Dialer
-	Context    context.Context
-	OnProgress func(Progress)
-}
-
-type Progress struct {
-	Phase        Phase
-	ExternalAddr string
-	LatencyMs    int32
-	NATMapping   NATMapping
-	NATFiltering NATFiltering
-}
-
-type Result struct {
-	ExternalAddr     string
-	LatencyMs        int32
-	NATMapping       NATMapping
-	NATFiltering     NATFiltering
-	NATTypeSupported bool
-}
-
-type parsedResponse struct {
-	xorMappedAddr netip.AddrPort
-	mappedAddr    netip.AddrPort
-	otherAddr     netip.AddrPort
-}
-
-func (r *parsedResponse) externalAddr() (netip.AddrPort, bool) {
-	if r.xorMappedAddr.IsValid() {
-		return r.xorMappedAddr, true
-	}
-	if r.mappedAddr.IsValid() {
-		return r.mappedAddr, true
-	}
-	return netip.AddrPort{}, false
-}
-
-type stunAttribute struct {
-	typ   uint16
-	value []byte
-}
-
-func newTransactionID() TransactionID {
-	var id TransactionID
-	_, _ = rand.Read(id[:])
-	return id
-}
-
-func buildBindingRequest(txID TransactionID, attrs ...stunAttribute) []byte {
-	attrLen := 0
-	for _, attr := range attrs {
-		attrLen += 4 + len(attr.value) + paddingLen(len(attr.value))
-	}
-
-	buf := make([]byte, headerSize+attrLen)
-	binary.BigEndian.PutUint16(buf[0:2], bindingRequest)
-	binary.BigEndian.PutUint16(buf[2:4], uint16(attrLen))
-	binary.BigEndian.PutUint32(buf[4:8], magicCookie)
-	copy(buf[8:20], txID[:])
-
-	offset := headerSize
-	for _, attr := range attrs {
-		binary.BigEndian.PutUint16(buf[offset:offset+2], attr.typ)
-		binary.BigEndian.PutUint16(buf[offset+2:offset+4], uint16(len(attr.value)))
-		copy(buf[offset+4:offset+4+len(attr.value)], attr.value)
-		offset += 4 + len(attr.value) + paddingLen(len(attr.value))
-	}
-
-	return buf
-}
-
-func changeRequestAttr(flags byte) stunAttribute {
-	return stunAttribute{
-		typ:   attrChangeRequest,
-		value: []byte{0, 0, 0, flags},
-	}
-}
-
-func parseResponse(data []byte, expectedTxID TransactionID) (*parsedResponse, error) {
-	if len(data) < headerSize {
-		return nil, E.New("response too short")
-	}
-
-	msgType := binary.BigEndian.Uint16(data[0:2])
-	if msgType&0xC000 != 0 {
-		return nil, E.New("invalid STUN message: top 2 bits not zero")
-	}
-
-	cookie := binary.BigEndian.Uint32(data[4:8])
-	if cookie != magicCookie {
-		return nil, E.New("invalid magic cookie")
-	}
-
-	var txID TransactionID
-	copy(txID[:], data[8:20])
-	if txID != expectedTxID {
-		return nil, E.New("transaction ID mismatch")
-	}
-
-	msgLen := int(binary.BigEndian.Uint16(data[2:4]))
-	if msgLen > len(data)-headerSize {
-		return nil, E.New("message length exceeds data")
-	}
-
-	attrData := data[headerSize : headerSize+msgLen]
-
-	if msgType == bindingErrorResponse {
-		return nil, parseErrorResponse(attrData)
-	}
-	if msgType != bindingSuccessResponse {
-		return nil, E.New("unexpected message type: ", fmt.Sprintf("0x%04x", msgType))
-	}
-
-	resp := &parsedResponse{}
-	offset := 0
-	for offset+4 <= len(attrData) {
-		attrType := binary.BigEndian.Uint16(attrData[offset : offset+2])
-		attrLen := int(binary.BigEndian.Uint16(attrData[offset+2 : offset+4]))
-		if offset+4+attrLen > len(attrData) {
-			break
-		}
-		attrValue := attrData[offset+4 : offset+4+attrLen]
-
-		switch attrType {
-		case attrXORMappedAddress:
-			addr, err := parseXORMappedAddress(attrValue, txID)
-			if err == nil {
-				resp.xorMappedAddr = addr
-			}
-		case attrMappedAddress:
-			addr, err := parseMappedAddress(attrValue)
-			if err == nil {
-				resp.mappedAddr = addr
-			}
-		case attrOtherAddress:
-			addr, err := parseMappedAddress(attrValue)
-			if err == nil {
-				resp.otherAddr = addr
-			}
-		}
-
-		offset += 4 + attrLen + paddingLen(attrLen)
-	}
-
-	return resp, nil
-}
-
-func parseErrorResponse(data []byte) error {
-	offset := 0
-	for offset+4 <= len(data) {
-		attrType := binary.BigEndian.Uint16(data[offset : offset+2])
-		attrLen := int(binary.BigEndian.Uint16(data[offset+2 : offset+4]))
-		if offset+4+attrLen > len(data) {
-			break
-		}
-		if attrType == attrErrorCode && attrLen >= 4 {
-			attrValue := data[offset+4 : offset+4+attrLen]
-			class := int(attrValue[2] & 0x07)
-			number := int(attrValue[3])
-			code := class*100 + number
-			if attrLen > 4 {
-				return E.New("STUN error ", code, ": ", string(attrValue[4:]))
-			}
-			return E.New("STUN error ", code)
-		}
-		offset += 4 + attrLen + paddingLen(attrLen)
-	}
-	return E.New("STUN error response")
-}
-
-func parseXORMappedAddress(data []byte, txID TransactionID) (netip.AddrPort, error) {
-	if len(data) < 4 {
-		return netip.AddrPort{}, E.New("XOR-MAPPED-ADDRESS too short")
-	}
-
-	family := data[1]
-	xPort := binary.BigEndian.Uint16(data[2:4])
-	port := xPort ^ uint16(magicCookie>>16)
-
-	switch family {
-	case familyIPv4:
-		if len(data) < 8 {
-			return netip.AddrPort{}, E.New("XOR-MAPPED-ADDRESS IPv4 too short")
-		}
-		var ip [4]byte
-		binary.BigEndian.PutUint32(ip[:], binary.BigEndian.Uint32(data[4:8])^magicCookie)
-		return netip.AddrPortFrom(netip.AddrFrom4(ip), port), nil
-	case familyIPv6:
-		if len(data) < 20 {
-			return netip.AddrPort{}, E.New("XOR-MAPPED-ADDRESS IPv6 too short")
-		}
-		var ip [16]byte
-		var xorKey [16]byte
-		binary.BigEndian.PutUint32(xorKey[0:4], magicCookie)
-		copy(xorKey[4:16], txID[:])
-		for i := range 16 {
-			ip[i] = data[4+i] ^ xorKey[i]
-		}
-		return netip.AddrPortFrom(netip.AddrFrom16(ip), port), nil
-	default:
-		return netip.AddrPort{}, E.New("unknown address family: ", family)
-	}
-}
-
-func parseMappedAddress(data []byte) (netip.AddrPort, error) {
-	if len(data) < 4 {
-		return netip.AddrPort{}, E.New("MAPPED-ADDRESS too short")
-	}
-
-	family := data[1]
-	port := binary.BigEndian.Uint16(data[2:4])
-
-	switch family {
-	case familyIPv4:
-		if len(data) < 8 {
-			return netip.AddrPort{}, E.New("MAPPED-ADDRESS IPv4 too short")
-		}
-		return netip.AddrPortFrom(
-			netip.AddrFrom4([4]byte{data[4], data[5], data[6], data[7]}), port,
-		), nil
-	case familyIPv6:
-		if len(data) < 20 {
-			return netip.AddrPort{}, E.New("MAPPED-ADDRESS IPv6 too short")
-		}
-		var ip [16]byte
-		copy(ip[:], data[4:20])
-		return netip.AddrPortFrom(netip.AddrFrom16(ip), port), nil
-	default:
-		return netip.AddrPort{}, E.New("unknown address family: ", family)
-	}
-}
-
-func roundTrip(conn net.PacketConn, addr net.Addr, txID TransactionID, attrs []stunAttribute, rto time.Duration) (*parsedResponse, time.Duration, error) {
-	request := buildBindingRequest(txID, attrs...)
-	currentRTO := rto
-	retransmitCount := 0
-
-	sendTime := time.Now()
-	_, err := conn.WriteTo(request, addr)
-	if err != nil {
-		return nil, 0, E.Cause(err, "send STUN request")
-	}
-
-	buf := make([]byte, 1024)
-	for {
-		err = conn.SetReadDeadline(sendTime.Add(currentRTO))
-		if err != nil {
-			return nil, 0, E.Cause(err, "set read deadline")
-		}
-
-		n, _, readErr := conn.ReadFrom(buf)
-		if readErr != nil {
-			if E.IsTimeout(readErr) && retransmitCount < maxRetransmit {
-				retransmitCount++
-				currentRTO *= 2
-				sendTime = time.Now()
-				_, err = conn.WriteTo(request, addr)
-				if err != nil {
-					return nil, 0, E.Cause(err, "retransmit STUN request")
-				}
-				continue
-			}
-			return nil, 0, E.Cause(readErr, "read STUN response")
-		}
-
-		if n < headerSize || buf[0]&0xC0 != 0 ||
-			binary.BigEndian.Uint32(buf[4:8]) != magicCookie {
-			continue
-		}
-		var receivedTxID TransactionID
-		copy(receivedTxID[:], buf[8:20])
-		if receivedTxID != txID {
-			continue
-		}
-
-		latency := time.Since(sendTime)
-
-		resp, parseErr := parseResponse(buf[:n], txID)
-		if parseErr != nil {
-			return nil, 0, parseErr
-		}
-
-		return resp, latency, nil
-	}
-}
-
-func Run(options Options) (*Result, error) {
-	ctx := options.Context
-	if ctx == nil {
-		ctx = context.Background()
-	}
-
-	server := options.Server
-	if server == "" {
-		server = DefaultServer
-	}
-	serverSocksaddr := M.ParseSocksaddr(server)
-	if serverSocksaddr.Port == 0 {
-		serverSocksaddr.Port = 3478
-	}
-
-	reportProgress := options.OnProgress
-	if reportProgress == nil {
-		reportProgress = func(Progress) {}
-	}
-
-	var (
-		packetConn net.PacketConn
-		serverAddr net.Addr
-		err        error
-	)
-
-	if options.Dialer != nil {
-		packetConn, err = options.Dialer.ListenPacket(ctx, serverSocksaddr)
-		if err != nil {
-			return nil, E.Cause(err, "create UDP socket")
-		}
-		serverAddr = serverSocksaddr
-	} else {
-		serverUDPAddr, resolveErr := net.ResolveUDPAddr("udp", serverSocksaddr.String())
-		if resolveErr != nil {
-			return nil, E.Cause(resolveErr, "resolve STUN server")
-		}
-		packetConn, err = net.ListenPacket("udp", "")
-		if err != nil {
-			return nil, E.Cause(err, "create UDP socket")
-		}
-		serverAddr = serverUDPAddr
-	}
-	defer func() {
-		_ = packetConn.Close()
-	}()
-	if deadline.NeedAdditionalReadDeadline(packetConn) {
-		packetConn = deadline.NewPacketConn(bufio.NewPacketConn(packetConn))
-	}
-
-	select {
-	case <-ctx.Done():
-		return nil, ctx.Err()
-	default:
-	}
-
-	rto := defaultRTO
-
-	// Phase 1: Binding
-	reportProgress(Progress{Phase: PhaseBinding})
-
-	txID := newTransactionID()
-	resp, latency, err := roundTrip(packetConn, serverAddr, txID, nil, rto)
-	if err != nil {
-		return nil, E.Cause(err, "binding request")
-	}
-
-	rto = max(minRTO, 3*latency)
-
-	externalAddr, ok := resp.externalAddr()
-	if !ok {
-		return nil, E.New("no mapped address in response")
-	}
-
-	result := &Result{
-		ExternalAddr: externalAddr.String(),
-		LatencyMs:    int32(latency.Milliseconds()),
-	}
-
-	reportProgress(Progress{
-		Phase:        PhaseBinding,
-		ExternalAddr: result.ExternalAddr,
-		LatencyMs:    result.LatencyMs,
-	})
-
-	otherAddr := resp.otherAddr
-	if !otherAddr.IsValid() {
-		result.NATTypeSupported = false
-		reportProgress(Progress{
-			Phase:        PhaseDone,
-			ExternalAddr: result.ExternalAddr,
-			LatencyMs:    result.LatencyMs,
-		})
-		return result, nil
-	}
-	result.NATTypeSupported = true
-
-	select {
-	case <-ctx.Done():
-		return result, nil
-	default:
-	}
-
-	// Phase 2: NAT Mapping Detection (RFC 5780 Section 4.3)
-	reportProgress(Progress{
-		Phase:        PhaseNATMapping,
-		ExternalAddr: result.ExternalAddr,
-		LatencyMs:    result.LatencyMs,
-	})
-
-	result.NATMapping = detectNATMapping(
-		packetConn, serverSocksaddr.Port, externalAddr, otherAddr, rto,
-	)
-
-	reportProgress(Progress{
-		Phase:        PhaseNATMapping,
-		ExternalAddr: result.ExternalAddr,
-		LatencyMs:    result.LatencyMs,
-		NATMapping:   result.NATMapping,
-	})
-
-	select {
-	case <-ctx.Done():
-		return result, nil
-	default:
-	}
-
-	// Phase 3: NAT Filtering Detection (RFC 5780 Section 4.4)
-	reportProgress(Progress{
-		Phase:        PhaseNATFiltering,
-		ExternalAddr: result.ExternalAddr,
-		LatencyMs:    result.LatencyMs,
-		NATMapping:   result.NATMapping,
-	})
-
-	result.NATFiltering = detectNATFiltering(packetConn, serverAddr, rto)
-
-	reportProgress(Progress{
-		Phase:        PhaseDone,
-		ExternalAddr: result.ExternalAddr,
-		LatencyMs:    result.LatencyMs,
-		NATMapping:   result.NATMapping,
-		NATFiltering: result.NATFiltering,
-	})
-
-	return result, nil
-}
-
-func detectNATMapping(
-	conn net.PacketConn,
-	serverPort uint16,
-	externalAddr netip.AddrPort,
-	otherAddr netip.AddrPort,
-	rto time.Duration,
-) NATMapping {
-	// Mapping Test II: Send to other_ip:server_port
-	testIIAddr := net.UDPAddrFromAddrPort(
-		netip.AddrPortFrom(otherAddr.Addr(), serverPort),
-	)
-	txID2 := newTransactionID()
-	resp2, _, err := roundTrip(conn, testIIAddr, txID2, nil, rto)
-	if err != nil {
-		return NATMappingUnknown
-	}
-
-	externalAddr2, ok := resp2.externalAddr()
-	if !ok {
-		return NATMappingUnknown
-	}
-
-	if externalAddr == externalAddr2 {
-		return NATMappingEndpointIndependent
-	}
-
-	// Mapping Test III: Send to other_ip:other_port
-	testIIIAddr := net.UDPAddrFromAddrPort(otherAddr)
-	txID3 := newTransactionID()
-	resp3, _, err := roundTrip(conn, testIIIAddr, txID3, nil, rto)
-	if err != nil {
-		return NATMappingUnknown
-	}
-
-	externalAddr3, ok := resp3.externalAddr()
-	if !ok {
-		return NATMappingUnknown
-	}
-
-	if externalAddr2 == externalAddr3 {
-		return NATMappingAddressDependent
-	}
-	return NATMappingAddressAndPortDependent
-}
-
-func detectNATFiltering(
-	conn net.PacketConn,
-	serverAddr net.Addr,
-	rto time.Duration,
-) NATFiltering {
-	// Filtering Test II: Request response from different IP and port
-	txID := newTransactionID()
-	_, _, err := roundTrip(conn, serverAddr, txID,
-		[]stunAttribute{changeRequestAttr(changeIP | changePort)}, rto)
-	if err == nil {
-		return NATFilteringEndpointIndependent
-	}
-
-	// Filtering Test III: Request response from different port only
-	txID = newTransactionID()
-	_, _, err = roundTrip(conn, serverAddr, txID,
-		[]stunAttribute{changeRequestAttr(changePort)}, rto)
-	if err == nil {
-		return NATFilteringAddressDependent
-	}
-
-	return NATFilteringAddressAndPortDependent
-}
-
-func paddingLen(n int) int {
-	if n%4 == 0 {
-		return 0
-	}
-	return 4 - n%4
-}

common/tls/apple_client_platform_test.go

@@ -1,205 +0,0 @@
-//go:build darwin && cgo
-
-package tls
-
-import (
-	"context"
-	stdtls "crypto/tls"
-	"net"
-	"testing"
-	"time"
-
-	"github.com/sagernet/sing-box/option"
-	"github.com/sagernet/sing/common/json/badoption"
-	"github.com/sagernet/sing/common/logger"
-)
-
-const appleTLSTestTimeout = 5 * time.Second
-
-type appleTLSServerResult struct {
-	state stdtls.ConnectionState
-	err   error
-}
-
-func TestAppleClientHandshakeAppliesALPNAndVersion(t *testing.T) {
-	serverCertificate, serverCertificatePEM := newAppleTestCertificate(t, "localhost")
-	serverResult, serverAddress := startAppleTLSTestServer(t, &stdtls.Config{
-		Certificates: []stdtls.Certificate{serverCertificate},
-		MinVersion:   stdtls.VersionTLS12,
-		MaxVersion:   stdtls.VersionTLS12,
-		NextProtos:   []string{"h2"},
-	})
-
-	clientConn, err := newAppleTestClientConn(t, serverAddress, option.OutboundTLSOptions{
-		Enabled:     true,
-		Engine:      "apple",
-		ServerName:  "localhost",
-		MinVersion:  "1.2",
-		MaxVersion:  "1.2",
-		ALPN:        badoption.Listable[string]{"h2"},
-		Certificate: badoption.Listable[string]{serverCertificatePEM},
-	})
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer clientConn.Close()
-
-	clientState := clientConn.ConnectionState()
-	if clientState.Version != stdtls.VersionTLS12 {
-		t.Fatalf("unexpected negotiated version: %x", clientState.Version)
-	}
-	if clientState.NegotiatedProtocol != "h2" {
-		t.Fatalf("unexpected negotiated protocol: %q", clientState.NegotiatedProtocol)
-	}
-
-	result := <-serverResult
-	if result.err != nil {
-		t.Fatal(result.err)
-	}
-	if result.state.Version != stdtls.VersionTLS12 {
-		t.Fatalf("server negotiated unexpected version: %x", result.state.Version)
-	}
-	if result.state.NegotiatedProtocol != "h2" {
-		t.Fatalf("server negotiated unexpected protocol: %q", result.state.NegotiatedProtocol)
-	}
-}
-
-func TestAppleClientHandshakeRejectsVersionMismatch(t *testing.T) {
-	serverCertificate, serverCertificatePEM := newAppleTestCertificate(t, "localhost")
-	serverResult, serverAddress := startAppleTLSTestServer(t, &stdtls.Config{
-		Certificates: []stdtls.Certificate{serverCertificate},
-		MinVersion:   stdtls.VersionTLS13,
-		MaxVersion:   stdtls.VersionTLS13,
-	})
-
-	clientConn, err := newAppleTestClientConn(t, serverAddress, option.OutboundTLSOptions{
-		Enabled:     true,
-		Engine:      "apple",
-		ServerName:  "localhost",
-		MaxVersion:  "1.2",
-		Certificate: badoption.Listable[string]{serverCertificatePEM},
-	})
-	if err == nil {
-		clientConn.Close()
-		t.Fatal("expected version mismatch handshake to fail")
-	}
-
-	if result := <-serverResult; result.err == nil {
-		t.Fatal("expected server handshake to fail on version mismatch")
-	}
-}
-
-func TestAppleClientHandshakeRejectsServerNameMismatch(t *testing.T) {
-	serverCertificate, serverCertificatePEM := newAppleTestCertificate(t, "localhost")
-	serverResult, serverAddress := startAppleTLSTestServer(t, &stdtls.Config{
-		Certificates: []stdtls.Certificate{serverCertificate},
-	})
-
-	clientConn, err := newAppleTestClientConn(t, serverAddress, option.OutboundTLSOptions{
-		Enabled:     true,
-		Engine:      "apple",
-		ServerName:  "example.com",
-		Certificate: badoption.Listable[string]{serverCertificatePEM},
-	})
-	if err == nil {
-		clientConn.Close()
-		t.Fatal("expected server name mismatch handshake to fail")
-	}
-
-	if result := <-serverResult; result.err == nil {
-		t.Fatal("expected server handshake to fail on server name mismatch")
-	}
-}
-
-func newAppleTestCertificate(t *testing.T, serverName string) (stdtls.Certificate, string) {
-	t.Helper()
-
-	privateKeyPEM, certificatePEM, err := GenerateCertificate(nil, nil, time.Now, serverName, time.Now().Add(time.Hour))
-	if err != nil {
-		t.Fatal(err)
-	}
-	certificate, err := stdtls.X509KeyPair(certificatePEM, privateKeyPEM)
-	if err != nil {
-		t.Fatal(err)
-	}
-	return certificate, string(certificatePEM)
-}
-
-func startAppleTLSTestServer(t *testing.T, tlsConfig *stdtls.Config) (<-chan appleTLSServerResult, string) {
-	t.Helper()
-
-	listener, err := net.Listen("tcp", "127.0.0.1:0")
-	if err != nil {
-		t.Fatal(err)
-	}
-	t.Cleanup(func() {
-		listener.Close()
-	})
-
-	if tcpListener, isTCP := listener.(*net.TCPListener); isTCP {
-		err = tcpListener.SetDeadline(time.Now().Add(appleTLSTestTimeout))
-		if err != nil {
-			t.Fatal(err)
-		}
-	}
-
-	result := make(chan appleTLSServerResult, 1)
-	go func() {
-		defer close(result)
-
-		conn, err := listener.Accept()
-		if err != nil {
-			result <- appleTLSServerResult{err: err}
-			return
-		}
-		defer conn.Close()
-
-		err = conn.SetDeadline(time.Now().Add(appleTLSTestTimeout))
-		if err != nil {
-			result <- appleTLSServerResult{err: err}
-			return
-		}
-
-		tlsConn := stdtls.Server(conn, tlsConfig)
-		defer tlsConn.Close()
-
-		err = tlsConn.Handshake()
-		if err != nil {
-			result <- appleTLSServerResult{err: err}
-			return
-		}
-
-		result <- appleTLSServerResult{state: tlsConn.ConnectionState()}
-	}()
-
-	return result, listener.Addr().String()
-}
-
-func newAppleTestClientConn(t *testing.T, serverAddress string, options option.OutboundTLSOptions) (Conn, error) {
-	t.Helper()
-
-	ctx, cancel := context.WithTimeout(context.Background(), appleTLSTestTimeout)
-	t.Cleanup(cancel)
-
-	clientConfig, err := NewClientWithOptions(ClientOptions{
-		Context:       ctx,
-		Logger:        logger.NOP(),
-		ServerAddress: "",
-		Options:       options,
-	})
-	if err != nil {
-		return nil, err
-	}
-
-	conn, err := net.DialTimeout("tcp", serverAddress, appleTLSTestTimeout)
-	if err != nil {
-		return nil, err
-	}
-
-	tlsConn, err := ClientHandshake(ctx, conn, clientConfig)
-	if err != nil {
-		conn.Close()
-		return nil, err
-	}
-	return tlsConn, nil
-}

common/tls/apple_client_stub.go

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

common/tls/client.go

@@ -8,16 +8,14 @@ import (
 	"os"
 
 	"github.com/sagernet/sing-box/common/badtls"
+	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/option"
-	E "github.com/sagernet/sing/common/exceptions"
 	"github.com/sagernet/sing/common/logger"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
 	aTLS "github.com/sagernet/sing/common/tls"
 )
 
-var errMissingServerName = E.New("missing server_name or insecure=true")
-
 func NewDialerFromOptions(ctx context.Context, logger logger.ContextLogger, dialer N.Dialer, serverAddress string, options option.OutboundTLSOptions) (N.Dialer, error) {
 	if !options.Enabled {
 		return dialer, nil
@@ -44,12 +42,11 @@ func NewClient(ctx context.Context, logger logger.ContextLogger, serverAddress s
 }
 
 type ClientOptions struct {
-	Context              context.Context
+	Context        context.Context
-	Logger               logger.ContextLogger
+	Logger         logger.ContextLogger
-	ServerAddress        string
+	ServerAddress  string
-	Options              option.OutboundTLSOptions
+	Options        option.OutboundTLSOptions
-	AllowEmptyServerName bool
+	KTLSCompatible bool
-	KTLSCompatible       bool
 }
 
 func NewClientWithOptions(options ClientOptions) (Config, error) {
@@ -64,22 +61,17 @@ func NewClientWithOptions(options ClientOptions) (Config, error) {
 	if options.Options.KernelRx {
 		options.Logger.Warn("enabling kTLS RX will definitely reduce performance, please checkout https://sing-box.sagernet.org/configuration/shared/tls/#kernel_rx")
 	}
-	switch options.Options.Engine {
-	case "", "go":
-	case "apple":
-		return newAppleClient(options.Context, options.Logger, options.ServerAddress, options.Options, options.AllowEmptyServerName)
-	default:
-		return nil, E.New("unknown tls engine: ", options.Options.Engine)
-	}
 	if options.Options.Reality != nil && options.Options.Reality.Enabled {
-		return newRealityClient(options.Context, options.Logger, options.ServerAddress, options.Options, options.AllowEmptyServerName)
+		return NewRealityClient(options.Context, options.Logger, options.ServerAddress, options.Options)
 	} else if options.Options.UTLS != nil && options.Options.UTLS.Enabled {
-		return newUTLSClient(options.Context, options.Logger, options.ServerAddress, options.Options, options.AllowEmptyServerName)
+		return NewUTLSClient(options.Context, options.Logger, options.ServerAddress, options.Options)
 	}
-	return newSTDClient(options.Context, options.Logger, options.ServerAddress, options.Options, options.AllowEmptyServerName)
+	return NewSTDClient(options.Context, options.Logger, options.ServerAddress, options.Options)
 }
 
 func ClientHandshake(ctx context.Context, conn net.Conn, config Config) (Conn, error) {
+	ctx, cancel := context.WithTimeout(ctx, C.TCPTimeout)
+	defer cancel()
 	tlsConn, err := aTLS.ClientHandshake(ctx, conn, config)
 	if err != nil {
 		return nil, err

common/tls/reality_client.go

@@ -52,15 +52,11 @@ type RealityClientConfig struct {
 }
 
 func NewRealityClient(ctx context.Context, logger logger.ContextLogger, serverAddress string, options option.OutboundTLSOptions) (Config, error) {
-	return newRealityClient(ctx, logger, serverAddress, options, false)
-}
-
-func newRealityClient(ctx context.Context, logger logger.ContextLogger, serverAddress string, options option.OutboundTLSOptions, allowEmptyServerName bool) (Config, error) {
 	if options.UTLS == nil || !options.UTLS.Enabled {
 		return nil, E.New("uTLS is required by reality client")
 	}
 
-	uClient, err := newUTLSClient(ctx, logger, serverAddress, options, allowEmptyServerName)
+	uClient, err := NewUTLSClient(ctx, logger, serverAddress, options)
 	if err != nil {
 		return nil, err
 	}
@@ -112,14 +108,6 @@ func (e *RealityClientConfig) SetNextProtos(nextProto []string) {
 	e.uClient.SetNextProtos(nextProto)
 }
 
-func (e *RealityClientConfig) HandshakeTimeout() time.Duration {
-	return e.uClient.HandshakeTimeout()
-}
-
-func (e *RealityClientConfig) SetHandshakeTimeout(timeout time.Duration) {
-	e.uClient.SetHandshakeTimeout(timeout)
-}
-
 func (e *RealityClientConfig) STDConfig() (*STDConfig, error) {
 	return nil, E.New("unsupported usage for reality")
 }

common/tls/reality_server.go

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

common/tls/server.go

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

common/tls/std_client.go

@@ -24,30 +24,16 @@ import (
 type STDClientConfig struct {
 	ctx                   context.Context
 	config                *tls.Config
-	serverName            string
-	disableSNI            bool
-	verifyServerName      bool
-	handshakeTimeout      time.Duration
 	fragment              bool
 	fragmentFallbackDelay time.Duration
 	recordFragment        bool
 }
 
 func (c *STDClientConfig) ServerName() string {
-	return c.serverName
+	return c.config.ServerName
 }
 
 func (c *STDClientConfig) SetServerName(serverName string) {
-	c.serverName = serverName
-	if c.disableSNI {
-		c.config.ServerName = ""
-		if c.verifyServerName {
-			c.config.VerifyConnection = verifyConnection(c.config.RootCAs, c.config.Time, serverName)
-		} else {
-			c.config.VerifyConnection = nil
-		}
-		return
-	}
 	c.config.ServerName = serverName
 }
 
@@ -59,14 +45,6 @@ func (c *STDClientConfig) SetNextProtos(nextProto []string) {
 	c.config.NextProtos = nextProto
 }
 
-func (c *STDClientConfig) HandshakeTimeout() time.Duration {
-	return c.handshakeTimeout
-}
-
-func (c *STDClientConfig) SetHandshakeTimeout(timeout time.Duration) {
-	c.handshakeTimeout = timeout
-}
-
 func (c *STDClientConfig) STDConfig() (*STDConfig, error) {
 	return c.config, nil
 }
@@ -79,19 +57,13 @@ func (c *STDClientConfig) Client(conn net.Conn) (Conn, error) {
 }
 
 func (c *STDClientConfig) Clone() Config {
-	cloned := &STDClientConfig{
+	return &STDClientConfig{
 		ctx:                   c.ctx,
 		config:                c.config.Clone(),
-		serverName:            c.serverName,
-		disableSNI:            c.disableSNI,
-		verifyServerName:      c.verifyServerName,
-		handshakeTimeout:      c.handshakeTimeout,
 		fragment:              c.fragment,
 		fragmentFallbackDelay: c.fragmentFallbackDelay,
 		recordFragment:        c.recordFragment,
 	}
-	cloned.SetServerName(cloned.serverName)
-	return cloned
 }
 
 func (c *STDClientConfig) ECHConfigList() []byte {
@@ -103,27 +75,41 @@ func (c *STDClientConfig) SetECHConfigList(EncryptedClientHelloConfigList []byte
 }
 
 func NewSTDClient(ctx context.Context, logger logger.ContextLogger, serverAddress string, options option.OutboundTLSOptions) (Config, error) {
-	return newSTDClient(ctx, logger, serverAddress, options, false)
-}
-
-func newSTDClient(ctx context.Context, logger logger.ContextLogger, serverAddress string, options option.OutboundTLSOptions, allowEmptyServerName bool) (Config, error) {
 	var serverName string
 	if options.ServerName != "" {
 		serverName = options.ServerName
 	} else if serverAddress != "" {
 		serverName = serverAddress
 	}
-	if serverName == "" && !options.Insecure && !allowEmptyServerName {
+	if serverName == "" && !options.Insecure {
-		return nil, errMissingServerName
+		return nil, E.New("missing server_name or insecure=true")
 	}
 
 	var tlsConfig tls.Config
 	tlsConfig.Time = ntp.TimeFuncFromContext(ctx)
 	tlsConfig.RootCAs = adapter.RootPoolFromContext(ctx)
+	if !options.DisableSNI {
+		tlsConfig.ServerName = serverName
+	}
 	if options.Insecure {
 		tlsConfig.InsecureSkipVerify = options.Insecure
 	} else if options.DisableSNI {
 		tlsConfig.InsecureSkipVerify = true
+		tlsConfig.VerifyConnection = func(state tls.ConnectionState) error {
+			verifyOptions := x509.VerifyOptions{
+				Roots:         tlsConfig.RootCAs,
+				DNSName:       serverName,
+				Intermediates: x509.NewCertPool(),
+			}
+			for _, cert := range state.PeerCertificates[1:] {
+				verifyOptions.Intermediates.AddCert(cert)
+			}
+			if tlsConfig.Time != nil {
+				verifyOptions.CurrentTime = tlsConfig.Time()
+			}
+			_, err := state.PeerCertificates[0].Verify(verifyOptions)
+			return err
+		}
 	}
 	if len(options.CertificatePublicKeySHA256) > 0 {
 		if len(options.Certificate) > 0 || options.CertificatePath != "" {
@@ -212,24 +198,7 @@ func newSTDClient(ctx context.Context, logger logger.ContextLogger, serverAddres
 	} else if len(clientCertificate) > 0 || len(clientKey) > 0 {
 		return nil, E.New("client certificate and client key must be provided together")
 	}
-	var handshakeTimeout time.Duration
+	var config Config = &STDClientConfig{ctx, &tlsConfig, options.Fragment, time.Duration(options.FragmentFallbackDelay), options.RecordFragment}
-	if options.HandshakeTimeout > 0 {
-		handshakeTimeout = options.HandshakeTimeout.Build()
-	} else {
-		handshakeTimeout = C.TCPTimeout
-	}
-	var config Config = &STDClientConfig{
-		ctx:                   ctx,
-		config:                &tlsConfig,
-		serverName:            serverName,
-		disableSNI:            options.DisableSNI,
-		verifyServerName:      options.DisableSNI && !options.Insecure,
-		handshakeTimeout:      handshakeTimeout,
-		fragment:              options.Fragment,
-		fragmentFallbackDelay: time.Duration(options.FragmentFallbackDelay),
-		recordFragment:        options.RecordFragment,
-	}
-	config.SetServerName(serverName)
 	if options.ECH != nil && options.ECH.Enabled {
 		var err error
 		config, err = parseECHClientConfig(ctx, config.(ECHCapableConfig), options)
@@ -251,27 +220,6 @@ func newSTDClient(ctx context.Context, logger logger.ContextLogger, serverAddres
 	return config, nil
 }
 
-func verifyConnection(rootCAs *x509.CertPool, timeFunc func() time.Time, serverName string) func(state tls.ConnectionState) error {
-	return func(state tls.ConnectionState) error {
-		if serverName == "" {
-			return errMissingServerName
-		}
-		verifyOptions := x509.VerifyOptions{
-			Roots:         rootCAs,
-			DNSName:       serverName,
-			Intermediates: x509.NewCertPool(),
-		}
-		for _, cert := range state.PeerCertificates[1:] {
-			verifyOptions.Intermediates.AddCert(cert)
-		}
-		if timeFunc != nil {
-			verifyOptions.CurrentTime = timeFunc()
-		}
-		_, err := state.PeerCertificates[0].Verify(verifyOptions)
-		return err
-	}
-}
-
 func verifyPublicKeySHA256(knownHashValues [][]byte, rawCerts [][]byte, timeFunc func() time.Time) error {
 	leafCertificate, err := x509.ParseCertificate(rawCerts[0])
 	if err != nil {

common/tls/std_server.go

@@ -92,7 +92,6 @@ func getACMENextProtos(provider adapter.CertificateProvider) []string {
 type STDServerConfig struct {
 	access                sync.RWMutex
 	config                *tls.Config
-	handshakeTimeout      time.Duration
 	logger                log.Logger
 	certificateProvider   managedCertificateProvider
 	acmeService           adapter.SimpleLifecycle
@@ -140,18 +139,6 @@ func (c *STDServerConfig) SetNextProtos(nextProto []string) {
 	c.config = config
 }
 
-func (c *STDServerConfig) HandshakeTimeout() time.Duration {
-	c.access.RLock()
-	defer c.access.RUnlock()
-	return c.handshakeTimeout
-}
-
-func (c *STDServerConfig) SetHandshakeTimeout(timeout time.Duration) {
-	c.access.Lock()
-	defer c.access.Unlock()
-	c.handshakeTimeout = timeout
-}
-
 func (c *STDServerConfig) hasACMEALPN() bool {
 	if c.acmeService != nil {
 		return true
@@ -178,8 +165,7 @@ func (c *STDServerConfig) Server(conn net.Conn) (Conn, error) {
 
 func (c *STDServerConfig) Clone() Config {
 	return &STDServerConfig{
-		config:           c.config.Clone(),
+		config: c.config.Clone(),
-		handshakeTimeout: c.handshakeTimeout,
 	}
 }
 
@@ -485,15 +471,8 @@ func NewSTDServer(ctx context.Context, logger log.ContextLogger, options option.
 			return nil, err
 		}
 	}
-	var handshakeTimeout time.Duration
-	if options.HandshakeTimeout > 0 {
-		handshakeTimeout = options.HandshakeTimeout.Build()
-	} else {
-		handshakeTimeout = C.TCPTimeout
-	}
 	serverConfig := &STDServerConfig{
 		config:                tlsConfig,
-		handshakeTimeout:      handshakeTimeout,
 		logger:                logger,
 		certificateProvider:   certificateProvider,
 		acmeService:           acmeService,

common/tls/utls_client.go

@@ -28,10 +28,6 @@ import (
 type UTLSClientConfig struct {
 	ctx                   context.Context
 	config                *utls.Config
-	serverName            string
-	disableSNI            bool
-	verifyServerName      bool
-	handshakeTimeout      time.Duration
 	id                    utls.ClientHelloID
 	fragment              bool
 	fragmentFallbackDelay time.Duration
@@ -39,20 +35,10 @@ type UTLSClientConfig struct {
 }
 
 func (c *UTLSClientConfig) ServerName() string {
-	return c.serverName
+	return c.config.ServerName
 }
 
 func (c *UTLSClientConfig) SetServerName(serverName string) {
-	c.serverName = serverName
-	if c.disableSNI {
-		c.config.ServerName = ""
-		if c.verifyServerName {
-			c.config.InsecureServerNameToVerify = serverName
-		} else {
-			c.config.InsecureServerNameToVerify = ""
-		}
-		return
-	}
 	c.config.ServerName = serverName
 }
 
@@ -67,14 +53,6 @@ func (c *UTLSClientConfig) SetNextProtos(nextProto []string) {
 	c.config.NextProtos = nextProto
 }
 
-func (c *UTLSClientConfig) HandshakeTimeout() time.Duration {
-	return c.handshakeTimeout
-}
-
-func (c *UTLSClientConfig) SetHandshakeTimeout(timeout time.Duration) {
-	c.handshakeTimeout = timeout
-}
-
 func (c *UTLSClientConfig) STDConfig() (*STDConfig, error) {
 	return nil, E.New("unsupported usage for uTLS")
 }
@@ -91,20 +69,9 @@ func (c *UTLSClientConfig) SetSessionIDGenerator(generator func(clientHello []by
 }
 
 func (c *UTLSClientConfig) Clone() Config {
-	cloned := &UTLSClientConfig{
+	return &UTLSClientConfig{
-		ctx:                   c.ctx,
+		c.ctx, c.config.Clone(), c.id, c.fragment, c.fragmentFallbackDelay, c.recordFragment,
-		config:                c.config.Clone(),
-		serverName:            c.serverName,
-		disableSNI:            c.disableSNI,
-		verifyServerName:      c.verifyServerName,
-		handshakeTimeout:      c.handshakeTimeout,
-		id:                    c.id,
-		fragment:              c.fragment,
-		fragmentFallbackDelay: c.fragmentFallbackDelay,
-		recordFragment:        c.recordFragment,
 	}
-	cloned.SetServerName(cloned.serverName)
-	return cloned
 }
 
 func (c *UTLSClientConfig) ECHConfigList() []byte {
@@ -176,29 +143,29 @@ func (c *utlsALPNWrapper) HandshakeContext(ctx context.Context) error {
 }
 
 func NewUTLSClient(ctx context.Context, logger logger.ContextLogger, serverAddress string, options option.OutboundTLSOptions) (Config, error) {
-	return newUTLSClient(ctx, logger, serverAddress, options, false)
-}
-
-func newUTLSClient(ctx context.Context, logger logger.ContextLogger, serverAddress string, options option.OutboundTLSOptions, allowEmptyServerName bool) (Config, error) {
 	var serverName string
 	if options.ServerName != "" {
 		serverName = options.ServerName
 	} else if serverAddress != "" {
 		serverName = serverAddress
 	}
-	if serverName == "" && !options.Insecure && !allowEmptyServerName {
+	if serverName == "" && !options.Insecure {
-		return nil, errMissingServerName
+		return nil, E.New("missing server_name or insecure=true")
 	}
 
 	var tlsConfig utls.Config
 	tlsConfig.Time = ntp.TimeFuncFromContext(ctx)
 	tlsConfig.RootCAs = adapter.RootPoolFromContext(ctx)
+	if !options.DisableSNI {
+		tlsConfig.ServerName = serverName
+	}
 	if options.Insecure {
 		tlsConfig.InsecureSkipVerify = options.Insecure
 	} else if options.DisableSNI {
 		if options.Reality != nil && options.Reality.Enabled {
 			return nil, E.New("disable_sni is unsupported in reality")
 		}
+		tlsConfig.InsecureServerNameToVerify = serverName
 	}
 	if len(options.CertificatePublicKeySHA256) > 0 {
 		if len(options.Certificate) > 0 || options.CertificatePath != "" {
@@ -284,29 +251,11 @@ func newUTLSClient(ctx context.Context, logger logger.ContextLogger, serverAddre
 	} else if len(clientCertificate) > 0 || len(clientKey) > 0 {
 		return nil, E.New("client certificate and client key must be provided together")
 	}
-	var handshakeTimeout time.Duration
-	if options.HandshakeTimeout > 0 {
-		handshakeTimeout = options.HandshakeTimeout.Build()
-	} else {
-		handshakeTimeout = C.TCPTimeout
-	}
 	id, err := uTLSClientHelloID(options.UTLS.Fingerprint)
 	if err != nil {
 		return nil, err
 	}
-	var config Config = &UTLSClientConfig{
+	var config Config = &UTLSClientConfig{ctx, &tlsConfig, id, options.Fragment, time.Duration(options.FragmentFallbackDelay), options.RecordFragment}
-		ctx:                   ctx,
-		config:                &tlsConfig,
-		serverName:            serverName,
-		disableSNI:            options.DisableSNI,
-		verifyServerName:      options.DisableSNI && !options.Insecure,
-		handshakeTimeout:      handshakeTimeout,
-		id:                    id,
-		fragment:              options.Fragment,
-		fragmentFallbackDelay: time.Duration(options.FragmentFallbackDelay),
-		recordFragment:        options.RecordFragment,
-	}
-	config.SetServerName(serverName)
 	if options.ECH != nil && options.ECH.Enabled {
 		if options.Reality != nil && options.Reality.Enabled {
 			return nil, E.New("Reality is conflict with ECH")

common/tls/utls_stub.go

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

constant/dns.go

@@ -15,18 +15,19 @@ const (
 )
 
 const (
-	DNSTypeLegacy    = "legacy"
+	DNSTypeLegacy      = "legacy"
-	DNSTypeUDP       = "udp"
+	DNSTypeLegacyRcode = "legacy_rcode"
-	DNSTypeTCP       = "tcp"
+	DNSTypeUDP         = "udp"
-	DNSTypeTLS       = "tls"
+	DNSTypeTCP         = "tcp"
-	DNSTypeHTTPS     = "https"
+	DNSTypeTLS         = "tls"
-	DNSTypeQUIC      = "quic"
+	DNSTypeHTTPS       = "https"
-	DNSTypeHTTP3     = "h3"
+	DNSTypeQUIC        = "quic"
-	DNSTypeLocal     = "local"
+	DNSTypeHTTP3       = "h3"
-	DNSTypeHosts     = "hosts"
+	DNSTypeLocal       = "local"
-	DNSTypeFakeIP    = "fakeip"
+	DNSTypeHosts       = "hosts"
-	DNSTypeDHCP      = "dhcp"
+	DNSTypeFakeIP      = "fakeip"
-	DNSTypeTailscale = "tailscale"
+	DNSTypeDHCP        = "dhcp"
+	DNSTypeTailscale   = "tailscale"
 )
 
 const (

constant/proxy.go

@@ -25,7 +25,6 @@ const (
 	TypeTUIC               = "tuic"
 	TypeHysteria2          = "hysteria2"
 	TypeTailscale          = "tailscale"
-	TypeCloudflared        = "cloudflared"
 	TypeDERP               = "derp"
 	TypeResolved           = "resolved"
 	TypeSSMAPI             = "ssm-api"
@@ -91,8 +90,6 @@ func ProxyDisplayName(proxyType string) string {
 		return "AnyTLS"
 	case TypeTailscale:
 		return "Tailscale"
-	case TypeCloudflared:
-		return "Cloudflared"
 	case TypeSelector:
 		return "Selector"
 	case TypeURLTest:

constant/rule.go

@@ -23,15 +23,12 @@ const (
 	RuleSetVersion2
 	RuleSetVersion3
 	RuleSetVersion4
-	RuleSetVersion5
+	RuleSetVersionCurrent = RuleSetVersion4
-	RuleSetVersionCurrent = RuleSetVersion5
 )
 
 const (
 	RuleActionTypeRoute        = "route"
 	RuleActionTypeRouteOptions = "route-options"
-	RuleActionTypeEvaluate     = "evaluate"
-	RuleActionTypeRespond      = "respond"
 	RuleActionTypeDirect       = "direct"
 	RuleActionTypeBypass       = "bypass"
 	RuleActionTypeReject       = "reject"

daemon/instance.go

@@ -87,17 +87,12 @@ func (s *StartedService) newInstance(profileContent string, overrideOptions *Ove
 			}
 		}
 	}
-	if s.oomKillerEnabled {
+	if s.oomKiller && C.IsIos {
 		if !common.Any(options.Services, func(it option.Service) bool {
 			return it.Type == C.TypeOOMKiller
 		}) {
-			oomOptions := &option.OOMKillerServiceOptions{
-				KillerDisabled:      s.oomKillerDisabled,
-				MemoryLimitOverride: s.oomMemoryLimit,
-			}
 			options.Services = append(options.Services, option.Service{
-				Type:    C.TypeOOMKiller,
+				Type: C.TypeOOMKiller,
-				Options: oomOptions,
 			})
 		}
 	}

daemon/platform.go

@@ -5,6 +5,5 @@ type PlatformHandler interface {
 	ServiceReload() error
 	SystemProxyStatus() (*SystemProxyStatus, error)
 	SetSystemProxyEnabled(enabled bool) error
-	TriggerNativeCrash() error
 	WriteDebugMessage(message string)
 }

daemon/started_service.go

@@ -6,20 +6,14 @@ import (
 	"runtime"
 	"sync"
 	"time"
-	"unsafe"
 
 	"github.com/sagernet/sing-box/adapter"
-	"github.com/sagernet/sing-box/common/dialer"
-	"github.com/sagernet/sing-box/common/networkquality"
-	"github.com/sagernet/sing-box/common/stun"
 	"github.com/sagernet/sing-box/common/urltest"
-	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/experimental/clashapi"
 	"github.com/sagernet/sing-box/experimental/clashapi/trafficontrol"
 	"github.com/sagernet/sing-box/experimental/deprecated"
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/protocol/group"
-	"github.com/sagernet/sing-box/service/oomkiller"
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/batch"
 	E "github.com/sagernet/sing/common/exceptions"
@@ -30,8 +24,6 @@ import (
 
 	"github.com/gofrs/uuid/v5"
 	"google.golang.org/grpc"
-	"google.golang.org/grpc/codes"
-	"google.golang.org/grpc/status"
 	"google.golang.org/protobuf/types/known/emptypb"
 )
 
@@ -40,12 +32,10 @@ var _ StartedServiceServer = (*StartedService)(nil)
 type StartedService struct {
 	ctx context.Context
 	// platform adapter.PlatformInterface
-	handler           PlatformHandler
+	handler     PlatformHandler
-	debug             bool
+	debug       bool
-	logMaxLines       int
+	logMaxLines int
-	oomKillerEnabled  bool
+	oomKiller   bool
-	oomKillerDisabled bool
-	oomMemoryLimit    uint64
 	// workingDirectory string
 	// tempDirectory    string
 	// userID           int
@@ -74,12 +64,10 @@ type StartedService struct {
 type ServiceOptions struct {
 	Context context.Context
 	// Platform           adapter.PlatformInterface
-	Handler           PlatformHandler
+	Handler     PlatformHandler
-	Debug             bool
+	Debug       bool
-	LogMaxLines       int
+	LogMaxLines int
-	OOMKillerEnabled  bool
+	OOMKiller   bool
-	OOMKillerDisabled bool
-	OOMMemoryLimit    uint64
 	// WorkingDirectory   string
 	// TempDirectory      string
 	// UserID             int
@@ -91,12 +79,10 @@ func NewStartedService(options ServiceOptions) *StartedService {
 	s := &StartedService{
 		ctx: options.Context,
 		// platform:                options.Platform,
-		handler:           options.Handler,
+		handler:     options.Handler,
-		debug:             options.Debug,
+		debug:       options.Debug,
-		logMaxLines:       options.LogMaxLines,
+		logMaxLines: options.LogMaxLines,
-		oomKillerEnabled:  options.OOMKillerEnabled,
+		oomKiller:   options.OOMKiller,
-		oomKillerDisabled: options.OOMKillerDisabled,
-		oomMemoryLimit:    options.OOMMemoryLimit,
 		// workingDirectory: options.WorkingDirectory,
 		// tempDirectory:    options.TempDirectory,
 		// userID:           options.UserID,
@@ -696,42 +682,7 @@ func (s *StartedService) SetSystemProxyEnabled(ctx context.Context, request *Set
 	if err != nil {
 		return nil, err
 	}
-	return &emptypb.Empty{}, nil
+	return nil, err
-}
-
-func (s *StartedService) TriggerDebugCrash(ctx context.Context, request *DebugCrashRequest) (*emptypb.Empty, error) {
-	if !s.debug {
-		return nil, status.Error(codes.PermissionDenied, "debug crash trigger unavailable")
-	}
-	if request == nil {
-		return nil, status.Error(codes.InvalidArgument, "missing debug crash request")
-	}
-	switch request.Type {
-	case DebugCrashRequest_GO:
-		time.AfterFunc(200*time.Millisecond, func() {
-			*(*int)(unsafe.Pointer(uintptr(0))) = 0
-		})
-	case DebugCrashRequest_NATIVE:
-		err := s.handler.TriggerNativeCrash()
-		if err != nil {
-			return nil, err
-		}
-	default:
-		return nil, status.Error(codes.InvalidArgument, "unknown debug crash type")
-	}
-	return &emptypb.Empty{}, nil
-}
-
-func (s *StartedService) TriggerOOMReport(ctx context.Context, _ *emptypb.Empty) (*emptypb.Empty, error) {
-	instance := s.Instance()
-	if instance == nil {
-		return nil, status.Error(codes.FailedPrecondition, "service not started")
-	}
-	reporter := service.FromContext[oomkiller.OOMReporter](instance.ctx)
-	if reporter == nil {
-		return nil, status.Error(codes.Unavailable, "OOM reporter not available")
-	}
-	return &emptypb.Empty{}, reporter.WriteReport(memory.Total())
 }
 
 func (s *StartedService) SubscribeConnections(request *SubscribeConnectionsRequest, server grpc.ServerStreamingServer[ConnectionEvents]) error {
@@ -1068,12 +1019,9 @@ func (s *StartedService) GetDeprecatedWarnings(ctx context.Context, empty *empty
 	return &DeprecatedWarnings{
 		Warnings: common.Map(notes, func(it deprecated.Note) *DeprecatedWarning {
 			return &DeprecatedWarning{
-				Message:           it.Message(),
+				Message:       it.Message(),
-				Impending:         it.Impending(),
+				Impending:     it.Impending(),
-				MigrationLink:     it.MigrationLink,
+				MigrationLink: it.MigrationLink,
-				Description:       it.Description,
-				DeprecatedVersion: it.DeprecatedVersion,
-				ScheduledVersion:  it.ScheduledVersion,
 			}
 		}),
 	}, nil
@@ -1085,386 +1033,6 @@ func (s *StartedService) GetStartedAt(ctx context.Context, empty *emptypb.Empty)
 	return &StartedAt{StartedAt: s.startedAt.UnixMilli()}, nil
 }
 
-func (s *StartedService) SubscribeOutbounds(_ *emptypb.Empty, server grpc.ServerStreamingServer[OutboundList]) error {
-	err := s.waitForStarted(server.Context())
-	if err != nil {
-		return err
-	}
-	subscription, done, err := s.urlTestObserver.Subscribe()
-	if err != nil {
-		return err
-	}
-	defer s.urlTestObserver.UnSubscribe(subscription)
-	for {
-		s.serviceAccess.RLock()
-		if s.serviceStatus.Status != ServiceStatus_STARTED {
-			s.serviceAccess.RUnlock()
-			return os.ErrInvalid
-		}
-		boxService := s.instance
-		s.serviceAccess.RUnlock()
-		historyStorage := boxService.urlTestHistoryStorage
-		var list OutboundList
-		for _, ob := range boxService.instance.Outbound().Outbounds() {
-			item := &GroupItem{
-				Tag:  ob.Tag(),
-				Type: ob.Type(),
-			}
-			if history := historyStorage.LoadURLTestHistory(adapter.OutboundTag(ob)); history != nil {
-				item.UrlTestTime = history.Time.Unix()
-				item.UrlTestDelay = int32(history.Delay)
-			}
-			list.Outbounds = append(list.Outbounds, item)
-		}
-		for _, ep := range boxService.instance.Endpoint().Endpoints() {
-			item := &GroupItem{
-				Tag:  ep.Tag(),
-				Type: ep.Type(),
-			}
-			if history := historyStorage.LoadURLTestHistory(adapter.OutboundTag(ep)); history != nil {
-				item.UrlTestTime = history.Time.Unix()
-				item.UrlTestDelay = int32(history.Delay)
-			}
-			list.Outbounds = append(list.Outbounds, item)
-		}
-		err = server.Send(&list)
-		if err != nil {
-			return err
-		}
-		select {
-		case <-subscription:
-		case <-s.ctx.Done():
-			return s.ctx.Err()
-		case <-server.Context().Done():
-			return server.Context().Err()
-		case <-done:
-			return nil
-		}
-	}
-}
-
-func resolveOutbound(instance *Instance, tag string) (adapter.Outbound, error) {
-	if tag == "" {
-		return instance.instance.Outbound().Default(), nil
-	}
-	outbound, loaded := instance.instance.Outbound().Outbound(tag)
-	if !loaded {
-		return nil, E.New("outbound not found: ", tag)
-	}
-	return outbound, nil
-}
-
-func (s *StartedService) StartNetworkQualityTest(
-	request *NetworkQualityTestRequest,
-	server grpc.ServerStreamingServer[NetworkQualityTestProgress],
-) error {
-	err := s.waitForStarted(server.Context())
-	if err != nil {
-		return err
-	}
-	s.serviceAccess.RLock()
-	boxService := s.instance
-	s.serviceAccess.RUnlock()
-
-	outbound, err := resolveOutbound(boxService, request.OutboundTag)
-	if err != nil {
-		return err
-	}
-
-	resolvedDialer := dialer.NewResolveDialer(boxService.ctx, outbound, true, "", adapter.DNSQueryOptions{}, 0)
-	httpClient := networkquality.NewHTTPClient(resolvedDialer)
-	defer httpClient.CloseIdleConnections()
-
-	measurementClientFactory, err := networkquality.NewOptionalHTTP3Factory(resolvedDialer, request.Http3)
-	if err != nil {
-		return err
-	}
-
-	result, nqErr := networkquality.Run(networkquality.Options{
-		ConfigURL:            request.ConfigURL,
-		HTTPClient:           httpClient,
-		NewMeasurementClient: measurementClientFactory,
-		Serial:               request.Serial,
-		MaxRuntime:           time.Duration(request.MaxRuntimeSeconds) * time.Second,
-		Context:              server.Context(),
-		OnProgress: func(p networkquality.Progress) {
-			_ = server.Send(&NetworkQualityTestProgress{
-				Phase:                    int32(p.Phase),
-				DownloadCapacity:         p.DownloadCapacity,
-				UploadCapacity:           p.UploadCapacity,
-				DownloadRPM:              p.DownloadRPM,
-				UploadRPM:                p.UploadRPM,
-				IdleLatencyMs:            p.IdleLatencyMs,
-				ElapsedMs:                p.ElapsedMs,
-				DownloadCapacityAccuracy: int32(p.DownloadCapacityAccuracy),
-				UploadCapacityAccuracy:   int32(p.UploadCapacityAccuracy),
-				DownloadRPMAccuracy:      int32(p.DownloadRPMAccuracy),
-				UploadRPMAccuracy:        int32(p.UploadRPMAccuracy),
-			})
-		},
-	})
-	if nqErr != nil {
-		return server.Send(&NetworkQualityTestProgress{
-			IsFinal: true,
-			Error:   nqErr.Error(),
-		})
-	}
-	return server.Send(&NetworkQualityTestProgress{
-		Phase:                    int32(networkquality.PhaseDone),
-		DownloadCapacity:         result.DownloadCapacity,
-		UploadCapacity:           result.UploadCapacity,
-		DownloadRPM:              result.DownloadRPM,
-		UploadRPM:                result.UploadRPM,
-		IdleLatencyMs:            result.IdleLatencyMs,
-		IsFinal:                  true,
-		DownloadCapacityAccuracy: int32(result.DownloadCapacityAccuracy),
-		UploadCapacityAccuracy:   int32(result.UploadCapacityAccuracy),
-		DownloadRPMAccuracy:      int32(result.DownloadRPMAccuracy),
-		UploadRPMAccuracy:        int32(result.UploadRPMAccuracy),
-	})
-}
-
-func (s *StartedService) StartSTUNTest(
-	request *STUNTestRequest,
-	server grpc.ServerStreamingServer[STUNTestProgress],
-) error {
-	err := s.waitForStarted(server.Context())
-	if err != nil {
-		return err
-	}
-	s.serviceAccess.RLock()
-	boxService := s.instance
-	s.serviceAccess.RUnlock()
-
-	outbound, err := resolveOutbound(boxService, request.OutboundTag)
-	if err != nil {
-		return err
-	}
-
-	resolvedDialer := dialer.NewResolveDialer(boxService.ctx, outbound, true, "", adapter.DNSQueryOptions{}, 0)
-
-	result, stunErr := stun.Run(stun.Options{
-		Server:  request.Server,
-		Dialer:  resolvedDialer,
-		Context: server.Context(),
-		OnProgress: func(p stun.Progress) {
-			_ = server.Send(&STUNTestProgress{
-				Phase:        int32(p.Phase),
-				ExternalAddr: p.ExternalAddr,
-				LatencyMs:    p.LatencyMs,
-				NatMapping:   int32(p.NATMapping),
-				NatFiltering: int32(p.NATFiltering),
-			})
-		},
-	})
-	if stunErr != nil {
-		return server.Send(&STUNTestProgress{
-			IsFinal: true,
-			Error:   stunErr.Error(),
-		})
-	}
-	return server.Send(&STUNTestProgress{
-		Phase:            int32(stun.PhaseDone),
-		ExternalAddr:     result.ExternalAddr,
-		LatencyMs:        result.LatencyMs,
-		NatMapping:       int32(result.NATMapping),
-		NatFiltering:     int32(result.NATFiltering),
-		IsFinal:          true,
-		NatTypeSupported: result.NATTypeSupported,
-	})
-}
-
-func (s *StartedService) SubscribeTailscaleStatus(
-	_ *emptypb.Empty,
-	server grpc.ServerStreamingServer[TailscaleStatusUpdate],
-) error {
-	err := s.waitForStarted(server.Context())
-	if err != nil {
-		return err
-	}
-	s.serviceAccess.RLock()
-	boxService := s.instance
-	s.serviceAccess.RUnlock()
-
-	endpointManager := service.FromContext[adapter.EndpointManager](boxService.ctx)
-	if endpointManager == nil {
-		return status.Error(codes.FailedPrecondition, "endpoint manager not available")
-	}
-
-	type tailscaleEndpoint struct {
-		tag      string
-		provider adapter.TailscaleEndpoint
-	}
-	var endpoints []tailscaleEndpoint
-	for _, endpoint := range endpointManager.Endpoints() {
-		if endpoint.Type() != C.TypeTailscale {
-			continue
-		}
-		provider, loaded := endpoint.(adapter.TailscaleEndpoint)
-		if !loaded {
-			continue
-		}
-		endpoints = append(endpoints, tailscaleEndpoint{
-			tag:      endpoint.Tag(),
-			provider: provider,
-		})
-	}
-	if len(endpoints) == 0 {
-		return status.Error(codes.NotFound, "no Tailscale endpoint found")
-	}
-
-	type taggedStatus struct {
-		tag    string
-		status *adapter.TailscaleEndpointStatus
-	}
-	updates := make(chan taggedStatus, len(endpoints))
-	ctx, cancel := context.WithCancel(server.Context())
-	defer cancel()
-
-	var waitGroup sync.WaitGroup
-	for _, endpoint := range endpoints {
-		waitGroup.Add(1)
-		go func(tag string, provider adapter.TailscaleEndpoint) {
-			defer waitGroup.Done()
-			_ = provider.SubscribeTailscaleStatus(ctx, func(endpointStatus *adapter.TailscaleEndpointStatus) {
-				select {
-				case updates <- taggedStatus{tag: tag, status: endpointStatus}:
-				case <-ctx.Done():
-				}
-			})
-		}(endpoint.tag, endpoint.provider)
-	}
-
-	go func() {
-		waitGroup.Wait()
-		close(updates)
-	}()
-
-	var tags []string
-	statuses := make(map[string]*adapter.TailscaleEndpointStatus, len(endpoints))
-	for update := range updates {
-		if _, exists := statuses[update.tag]; !exists {
-			tags = append(tags, update.tag)
-		}
-		statuses[update.tag] = update.status
-		protoEndpoints := make([]*TailscaleEndpointStatus, 0, len(statuses))
-		for _, tag := range tags {
-			protoEndpoints = append(protoEndpoints, tailscaleEndpointStatusToProto(tag, statuses[tag]))
-		}
-		sendErr := server.Send(&TailscaleStatusUpdate{
-			Endpoints: protoEndpoints,
-		})
-		if sendErr != nil {
-			return sendErr
-		}
-	}
-	return nil
-}
-
-func tailscaleEndpointStatusToProto(tag string, s *adapter.TailscaleEndpointStatus) *TailscaleEndpointStatus {
-	userGroups := make([]*TailscaleUserGroup, len(s.UserGroups))
-	for i, group := range s.UserGroups {
-		peers := make([]*TailscalePeer, len(group.Peers))
-		for j, peer := range group.Peers {
-			peers[j] = tailscalePeerToProto(peer)
-		}
-		userGroups[i] = &TailscaleUserGroup{
-			UserID:        group.UserID,
-			LoginName:     group.LoginName,
-			DisplayName:   group.DisplayName,
-			ProfilePicURL: group.ProfilePicURL,
-			Peers:         peers,
-		}
-	}
-	result := &TailscaleEndpointStatus{
-		EndpointTag:    tag,
-		BackendState:   s.BackendState,
-		AuthURL:        s.AuthURL,
-		NetworkName:    s.NetworkName,
-		MagicDNSSuffix: s.MagicDNSSuffix,
-		UserGroups:     userGroups,
-	}
-	if s.Self != nil {
-		result.Self = tailscalePeerToProto(s.Self)
-	}
-	return result
-}
-
-func tailscalePeerToProto(peer *adapter.TailscalePeer) *TailscalePeer {
-	return &TailscalePeer{
-		HostName:       peer.HostName,
-		DnsName:        peer.DNSName,
-		Os:             peer.OS,
-		TailscaleIPs:   peer.TailscaleIPs,
-		Online:         peer.Online,
-		ExitNode:       peer.ExitNode,
-		ExitNodeOption: peer.ExitNodeOption,
-		Active:         peer.Active,
-		RxBytes:        peer.RxBytes,
-		TxBytes:        peer.TxBytes,
-		KeyExpiry:      peer.KeyExpiry,
-	}
-}
-
-func (s *StartedService) StartTailscalePing(
-	request *TailscalePingRequest,
-	server grpc.ServerStreamingServer[TailscalePingResponse],
-) error {
-	err := s.waitForStarted(server.Context())
-	if err != nil {
-		return err
-	}
-	s.serviceAccess.RLock()
-	boxService := s.instance
-	s.serviceAccess.RUnlock()
-
-	endpointManager := service.FromContext[adapter.EndpointManager](boxService.ctx)
-	if endpointManager == nil {
-		return status.Error(codes.FailedPrecondition, "endpoint manager not available")
-	}
-
-	var provider adapter.TailscaleEndpoint
-	if request.EndpointTag != "" {
-		endpoint, loaded := endpointManager.Get(request.EndpointTag)
-		if !loaded {
-			return status.Error(codes.NotFound, "endpoint not found: "+request.EndpointTag)
-		}
-		if endpoint.Type() != C.TypeTailscale {
-			return status.Error(codes.InvalidArgument, "endpoint is not Tailscale: "+request.EndpointTag)
-		}
-		pingProvider, loaded := endpoint.(adapter.TailscaleEndpoint)
-		if !loaded {
-			return status.Error(codes.FailedPrecondition, "endpoint does not support ping")
-		}
-		provider = pingProvider
-	} else {
-		for _, endpoint := range endpointManager.Endpoints() {
-			if endpoint.Type() != C.TypeTailscale {
-				continue
-			}
-			pingProvider, loaded := endpoint.(adapter.TailscaleEndpoint)
-			if loaded {
-				provider = pingProvider
-				break
-			}
-		}
-		if provider == nil {
-			return status.Error(codes.NotFound, "no Tailscale endpoint found")
-		}
-	}
-
-	return provider.StartTailscalePing(server.Context(), request.PeerIP, func(result *adapter.TailscalePingResult) {
-		_ = server.Send(&TailscalePingResponse{
-			LatencyMs:      result.LatencyMs,
-			IsDirect:       result.IsDirect,
-			Endpoint:       result.Endpoint,
-			DerpRegionID:   result.DERPRegionID,
-			DerpRegionCode: result.DERPRegionCode,
-			Error:          result.Error,
-		})
-	})
-}
-
 func (s *StartedService) mustEmbedUnimplementedStartedServiceServer() {
 }
 

daemon/started_service.proto

@@ -26,20 +26,12 @@ service StartedService {
 
   rpc GetSystemProxyStatus(google.protobuf.Empty) returns(SystemProxyStatus) {}
   rpc SetSystemProxyEnabled(SetSystemProxyEnabledRequest) returns(google.protobuf.Empty) {}
-  rpc TriggerDebugCrash(DebugCrashRequest) returns(google.protobuf.Empty) {}
-  rpc TriggerOOMReport(google.protobuf.Empty) returns(google.protobuf.Empty) {}
 
   rpc SubscribeConnections(SubscribeConnectionsRequest) returns(stream ConnectionEvents) {}
   rpc CloseConnection(CloseConnectionRequest) returns(google.protobuf.Empty) {}
   rpc CloseAllConnections(google.protobuf.Empty) returns(google.protobuf.Empty) {}
   rpc GetDeprecatedWarnings(google.protobuf.Empty) returns(DeprecatedWarnings) {}
   rpc GetStartedAt(google.protobuf.Empty) returns(StartedAt) {}
-
-  rpc SubscribeOutbounds(google.protobuf.Empty) returns (stream OutboundList) {}
-  rpc StartNetworkQualityTest(NetworkQualityTestRequest) returns (stream NetworkQualityTestProgress) {}
-  rpc StartSTUNTest(STUNTestRequest) returns (stream STUNTestProgress) {}
-  rpc SubscribeTailscaleStatus(google.protobuf.Empty) returns (stream TailscaleStatusUpdate) {}
-  rpc StartTailscalePing(TailscalePingRequest) returns (stream TailscalePingResponse) {}
 }
 
 message ServiceStatus {
@@ -149,15 +141,6 @@ message SetSystemProxyEnabledRequest {
   bool enabled = 1;
 }
 
-message DebugCrashRequest {
-  enum Type {
-    GO = 0;
-    NATIVE = 1;
-  }
-
-  Type type = 1;
-}
-
 message SubscribeConnectionsRequest {
   int64 interval = 1;
 }
@@ -227,105 +210,8 @@ message DeprecatedWarning {
   string message = 1;
   bool impending = 2;
   string migrationLink = 3;
-  string description = 4;
-  string deprecatedVersion = 5;
-  string scheduledVersion = 6;
 }
 
 message StartedAt {
   int64 startedAt = 1;
 }
-
-message OutboundList {
-  repeated GroupItem outbounds = 1;
-}
-
-message NetworkQualityTestRequest {
-  string configURL = 1;
-  string outboundTag = 2;
-  bool serial = 3;
-  int32 maxRuntimeSeconds = 4;
-  bool http3 = 5;
-}
-
-message NetworkQualityTestProgress {
-  int32 phase = 1;
-  int64 downloadCapacity = 2;
-  int64 uploadCapacity = 3;
-  int32 downloadRPM = 4;
-  int32 uploadRPM = 5;
-  int32 idleLatencyMs = 6;
-  int64 elapsedMs = 7;
-  bool isFinal = 8;
-  string error = 9;
-  int32 downloadCapacityAccuracy = 10;
-  int32 uploadCapacityAccuracy = 11;
-  int32 downloadRPMAccuracy = 12;
-  int32 uploadRPMAccuracy = 13;
-}
-
-message STUNTestRequest {
-  string server = 1;
-  string outboundTag = 2;
-}
-
-message STUNTestProgress {
-  int32 phase = 1;
-  string externalAddr = 2;
-  int32 latencyMs = 3;
-  int32 natMapping = 4;
-  int32 natFiltering = 5;
-  bool isFinal = 6;
-  string error = 7;
-  bool natTypeSupported = 8;
-}
-
-message TailscaleStatusUpdate {
-  repeated TailscaleEndpointStatus endpoints = 1;
-}
-
-message TailscaleEndpointStatus {
-  string endpointTag = 1;
-  string backendState = 2;
-  string authURL = 3;
-  string networkName = 4;
-  string magicDNSSuffix = 5;
-  TailscalePeer self = 6;
-  repeated TailscaleUserGroup userGroups = 7;
-}
-
-message TailscaleUserGroup {
-  int64 userID = 1;
-  string loginName = 2;
-  string displayName = 3;
-  string profilePicURL = 4;
-  repeated TailscalePeer peers = 5;
-}
-
-message TailscalePeer {
-  string hostName = 1;
-  string dnsName = 2;
-  string os = 3;
-  repeated string tailscaleIPs = 4;
-  bool online = 5;
-  bool exitNode = 6;
-  bool exitNodeOption = 7;
-  bool active = 8;
-  int64 rxBytes = 9;
-  int64 txBytes = 10;
-  int64 keyExpiry = 11;
-}
-
-message TailscalePingRequest {
-  string endpointTag = 1;
-  string peerIP = 2;
-}
-
-message TailscalePingResponse {
-  double latencyMs = 1;
-  bool isDirect = 2;
-  string endpoint = 3;
-  int32 derpRegionID = 4;
-  string derpRegionCode = 5;
-  string error = 6;
-}

daemon/started_service_grpc.pb.go

@@ -15,34 +15,27 @@ import (
 const _ = grpc.SupportPackageIsVersion9
 
 const (
-	StartedService_StopService_FullMethodName              = "/daemon.StartedService/StopService"
+	StartedService_StopService_FullMethodName            = "/daemon.StartedService/StopService"
-	StartedService_ReloadService_FullMethodName            = "/daemon.StartedService/ReloadService"
+	StartedService_ReloadService_FullMethodName          = "/daemon.StartedService/ReloadService"
-	StartedService_SubscribeServiceStatus_FullMethodName   = "/daemon.StartedService/SubscribeServiceStatus"
+	StartedService_SubscribeServiceStatus_FullMethodName = "/daemon.StartedService/SubscribeServiceStatus"
-	StartedService_SubscribeLog_FullMethodName             = "/daemon.StartedService/SubscribeLog"
+	StartedService_SubscribeLog_FullMethodName           = "/daemon.StartedService/SubscribeLog"
-	StartedService_GetDefaultLogLevel_FullMethodName       = "/daemon.StartedService/GetDefaultLogLevel"
+	StartedService_GetDefaultLogLevel_FullMethodName     = "/daemon.StartedService/GetDefaultLogLevel"
-	StartedService_ClearLogs_FullMethodName                = "/daemon.StartedService/ClearLogs"
+	StartedService_ClearLogs_FullMethodName              = "/daemon.StartedService/ClearLogs"
-	StartedService_SubscribeStatus_FullMethodName          = "/daemon.StartedService/SubscribeStatus"
+	StartedService_SubscribeStatus_FullMethodName        = "/daemon.StartedService/SubscribeStatus"
-	StartedService_SubscribeGroups_FullMethodName          = "/daemon.StartedService/SubscribeGroups"
+	StartedService_SubscribeGroups_FullMethodName        = "/daemon.StartedService/SubscribeGroups"
-	StartedService_GetClashModeStatus_FullMethodName       = "/daemon.StartedService/GetClashModeStatus"
+	StartedService_GetClashModeStatus_FullMethodName     = "/daemon.StartedService/GetClashModeStatus"
-	StartedService_SubscribeClashMode_FullMethodName       = "/daemon.StartedService/SubscribeClashMode"
+	StartedService_SubscribeClashMode_FullMethodName     = "/daemon.StartedService/SubscribeClashMode"
-	StartedService_SetClashMode_FullMethodName             = "/daemon.StartedService/SetClashMode"
+	StartedService_SetClashMode_FullMethodName           = "/daemon.StartedService/SetClashMode"
-	StartedService_URLTest_FullMethodName                  = "/daemon.StartedService/URLTest"
+	StartedService_URLTest_FullMethodName                = "/daemon.StartedService/URLTest"
-	StartedService_SelectOutbound_FullMethodName           = "/daemon.StartedService/SelectOutbound"
+	StartedService_SelectOutbound_FullMethodName         = "/daemon.StartedService/SelectOutbound"
-	StartedService_SetGroupExpand_FullMethodName           = "/daemon.StartedService/SetGroupExpand"
+	StartedService_SetGroupExpand_FullMethodName         = "/daemon.StartedService/SetGroupExpand"
-	StartedService_GetSystemProxyStatus_FullMethodName     = "/daemon.StartedService/GetSystemProxyStatus"
+	StartedService_GetSystemProxyStatus_FullMethodName   = "/daemon.StartedService/GetSystemProxyStatus"
-	StartedService_SetSystemProxyEnabled_FullMethodName    = "/daemon.StartedService/SetSystemProxyEnabled"
+	StartedService_SetSystemProxyEnabled_FullMethodName  = "/daemon.StartedService/SetSystemProxyEnabled"
-	StartedService_TriggerDebugCrash_FullMethodName        = "/daemon.StartedService/TriggerDebugCrash"
+	StartedService_SubscribeConnections_FullMethodName   = "/daemon.StartedService/SubscribeConnections"
-	StartedService_TriggerOOMReport_FullMethodName         = "/daemon.StartedService/TriggerOOMReport"
+	StartedService_CloseConnection_FullMethodName        = "/daemon.StartedService/CloseConnection"
-	StartedService_SubscribeConnections_FullMethodName     = "/daemon.StartedService/SubscribeConnections"
+	StartedService_CloseAllConnections_FullMethodName    = "/daemon.StartedService/CloseAllConnections"
-	StartedService_CloseConnection_FullMethodName          = "/daemon.StartedService/CloseConnection"
+	StartedService_GetDeprecatedWarnings_FullMethodName  = "/daemon.StartedService/GetDeprecatedWarnings"
-	StartedService_CloseAllConnections_FullMethodName      = "/daemon.StartedService/CloseAllConnections"
+	StartedService_GetStartedAt_FullMethodName           = "/daemon.StartedService/GetStartedAt"
-	StartedService_GetDeprecatedWarnings_FullMethodName    = "/daemon.StartedService/GetDeprecatedWarnings"
-	StartedService_GetStartedAt_FullMethodName             = "/daemon.StartedService/GetStartedAt"
-	StartedService_SubscribeOutbounds_FullMethodName       = "/daemon.StartedService/SubscribeOutbounds"
-	StartedService_StartNetworkQualityTest_FullMethodName  = "/daemon.StartedService/StartNetworkQualityTest"
-	StartedService_StartSTUNTest_FullMethodName            = "/daemon.StartedService/StartSTUNTest"
-	StartedService_SubscribeTailscaleStatus_FullMethodName = "/daemon.StartedService/SubscribeTailscaleStatus"
-	StartedService_StartTailscalePing_FullMethodName       = "/daemon.StartedService/StartTailscalePing"
 )
 
 // StartedServiceClient is the client API for StartedService service.
@@ -65,18 +58,11 @@ type StartedServiceClient interface {
 	SetGroupExpand(ctx context.Context, in *SetGroupExpandRequest, opts ...grpc.CallOption) (*emptypb.Empty, error)
 	GetSystemProxyStatus(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*SystemProxyStatus, error)
 	SetSystemProxyEnabled(ctx context.Context, in *SetSystemProxyEnabledRequest, opts ...grpc.CallOption) (*emptypb.Empty, error)
-	TriggerDebugCrash(ctx context.Context, in *DebugCrashRequest, opts ...grpc.CallOption) (*emptypb.Empty, error)
-	TriggerOOMReport(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*emptypb.Empty, error)
 	SubscribeConnections(ctx context.Context, in *SubscribeConnectionsRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[ConnectionEvents], error)
 	CloseConnection(ctx context.Context, in *CloseConnectionRequest, opts ...grpc.CallOption) (*emptypb.Empty, error)
 	CloseAllConnections(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*emptypb.Empty, error)
 	GetDeprecatedWarnings(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*DeprecatedWarnings, error)
 	GetStartedAt(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*StartedAt, error)
-	SubscribeOutbounds(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (grpc.ServerStreamingClient[OutboundList], error)
-	StartNetworkQualityTest(ctx context.Context, in *NetworkQualityTestRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[NetworkQualityTestProgress], error)
-	StartSTUNTest(ctx context.Context, in *STUNTestRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[STUNTestProgress], error)
-	SubscribeTailscaleStatus(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (grpc.ServerStreamingClient[TailscaleStatusUpdate], error)
-	StartTailscalePing(ctx context.Context, in *TailscalePingRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[TailscalePingResponse], error)
 }
 
 type startedServiceClient struct {
@@ -292,26 +278,6 @@ func (c *startedServiceClient) SetSystemProxyEnabled(ctx context.Context, in *Se
 	return out, nil
 }
 
-func (c *startedServiceClient) TriggerDebugCrash(ctx context.Context, in *DebugCrashRequest, opts ...grpc.CallOption) (*emptypb.Empty, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(emptypb.Empty)
-	err := c.cc.Invoke(ctx, StartedService_TriggerDebugCrash_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *startedServiceClient) TriggerOOMReport(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*emptypb.Empty, error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	out := new(emptypb.Empty)
-	err := c.cc.Invoke(ctx, StartedService_TriggerOOMReport_FullMethodName, in, out, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
 func (c *startedServiceClient) SubscribeConnections(ctx context.Context, in *SubscribeConnectionsRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[ConnectionEvents], error) {
 	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
 	stream, err := c.cc.NewStream(ctx, &StartedService_ServiceDesc.Streams[5], StartedService_SubscribeConnections_FullMethodName, cOpts...)
@@ -371,101 +337,6 @@ func (c *startedServiceClient) GetStartedAt(ctx context.Context, in *emptypb.Emp
 	return out, nil
 }
 
-func (c *startedServiceClient) SubscribeOutbounds(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (grpc.ServerStreamingClient[OutboundList], error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	stream, err := c.cc.NewStream(ctx, &StartedService_ServiceDesc.Streams[6], StartedService_SubscribeOutbounds_FullMethodName, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	x := &grpc.GenericClientStream[emptypb.Empty, OutboundList]{ClientStream: stream}
-	if err := x.ClientStream.SendMsg(in); err != nil {
-		return nil, err
-	}
-	if err := x.ClientStream.CloseSend(); err != nil {
-		return nil, err
-	}
-	return x, nil
-}
-
-// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
-type StartedService_SubscribeOutboundsClient = grpc.ServerStreamingClient[OutboundList]
-
-func (c *startedServiceClient) StartNetworkQualityTest(ctx context.Context, in *NetworkQualityTestRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[NetworkQualityTestProgress], error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	stream, err := c.cc.NewStream(ctx, &StartedService_ServiceDesc.Streams[7], StartedService_StartNetworkQualityTest_FullMethodName, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	x := &grpc.GenericClientStream[NetworkQualityTestRequest, NetworkQualityTestProgress]{ClientStream: stream}
-	if err := x.ClientStream.SendMsg(in); err != nil {
-		return nil, err
-	}
-	if err := x.ClientStream.CloseSend(); err != nil {
-		return nil, err
-	}
-	return x, nil
-}
-
-// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
-type StartedService_StartNetworkQualityTestClient = grpc.ServerStreamingClient[NetworkQualityTestProgress]
-
-func (c *startedServiceClient) StartSTUNTest(ctx context.Context, in *STUNTestRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[STUNTestProgress], error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	stream, err := c.cc.NewStream(ctx, &StartedService_ServiceDesc.Streams[8], StartedService_StartSTUNTest_FullMethodName, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	x := &grpc.GenericClientStream[STUNTestRequest, STUNTestProgress]{ClientStream: stream}
-	if err := x.ClientStream.SendMsg(in); err != nil {
-		return nil, err
-	}
-	if err := x.ClientStream.CloseSend(); err != nil {
-		return nil, err
-	}
-	return x, nil
-}
-
-// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
-type StartedService_StartSTUNTestClient = grpc.ServerStreamingClient[STUNTestProgress]
-
-func (c *startedServiceClient) SubscribeTailscaleStatus(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (grpc.ServerStreamingClient[TailscaleStatusUpdate], error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	stream, err := c.cc.NewStream(ctx, &StartedService_ServiceDesc.Streams[9], StartedService_SubscribeTailscaleStatus_FullMethodName, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	x := &grpc.GenericClientStream[emptypb.Empty, TailscaleStatusUpdate]{ClientStream: stream}
-	if err := x.ClientStream.SendMsg(in); err != nil {
-		return nil, err
-	}
-	if err := x.ClientStream.CloseSend(); err != nil {
-		return nil, err
-	}
-	return x, nil
-}
-
-// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
-type StartedService_SubscribeTailscaleStatusClient = grpc.ServerStreamingClient[TailscaleStatusUpdate]
-
-func (c *startedServiceClient) StartTailscalePing(ctx context.Context, in *TailscalePingRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[TailscalePingResponse], error) {
-	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
-	stream, err := c.cc.NewStream(ctx, &StartedService_ServiceDesc.Streams[10], StartedService_StartTailscalePing_FullMethodName, cOpts...)
-	if err != nil {
-		return nil, err
-	}
-	x := &grpc.GenericClientStream[TailscalePingRequest, TailscalePingResponse]{ClientStream: stream}
-	if err := x.ClientStream.SendMsg(in); err != nil {
-		return nil, err
-	}
-	if err := x.ClientStream.CloseSend(); err != nil {
-		return nil, err
-	}
-	return x, nil
-}
-
-// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
-type StartedService_StartTailscalePingClient = grpc.ServerStreamingClient[TailscalePingResponse]
-
 // StartedServiceServer is the server API for StartedService service.
 // All implementations must embed UnimplementedStartedServiceServer
 // for forward compatibility.
@@ -486,18 +357,11 @@ type StartedServiceServer interface {
 	SetGroupExpand(context.Context, *SetGroupExpandRequest) (*emptypb.Empty, error)
 	GetSystemProxyStatus(context.Context, *emptypb.Empty) (*SystemProxyStatus, error)
 	SetSystemProxyEnabled(context.Context, *SetSystemProxyEnabledRequest) (*emptypb.Empty, error)
-	TriggerDebugCrash(context.Context, *DebugCrashRequest) (*emptypb.Empty, error)
-	TriggerOOMReport(context.Context, *emptypb.Empty) (*emptypb.Empty, error)
 	SubscribeConnections(*SubscribeConnectionsRequest, grpc.ServerStreamingServer[ConnectionEvents]) error
 	CloseConnection(context.Context, *CloseConnectionRequest) (*emptypb.Empty, error)
 	CloseAllConnections(context.Context, *emptypb.Empty) (*emptypb.Empty, error)
 	GetDeprecatedWarnings(context.Context, *emptypb.Empty) (*DeprecatedWarnings, error)
 	GetStartedAt(context.Context, *emptypb.Empty) (*StartedAt, error)
-	SubscribeOutbounds(*emptypb.Empty, grpc.ServerStreamingServer[OutboundList]) error
-	StartNetworkQualityTest(*NetworkQualityTestRequest, grpc.ServerStreamingServer[NetworkQualityTestProgress]) error
-	StartSTUNTest(*STUNTestRequest, grpc.ServerStreamingServer[STUNTestProgress]) error
-	SubscribeTailscaleStatus(*emptypb.Empty, grpc.ServerStreamingServer[TailscaleStatusUpdate]) error
-	StartTailscalePing(*TailscalePingRequest, grpc.ServerStreamingServer[TailscalePingResponse]) error
 	mustEmbedUnimplementedStartedServiceServer()
 }
 
@@ -572,14 +436,6 @@ func (UnimplementedStartedServiceServer) SetSystemProxyEnabled(context.Context,
 	return nil, status.Error(codes.Unimplemented, "method SetSystemProxyEnabled not implemented")
 }
 
-func (UnimplementedStartedServiceServer) TriggerDebugCrash(context.Context, *DebugCrashRequest) (*emptypb.Empty, error) {
-	return nil, status.Error(codes.Unimplemented, "method TriggerDebugCrash not implemented")
-}
-
-func (UnimplementedStartedServiceServer) TriggerOOMReport(context.Context, *emptypb.Empty) (*emptypb.Empty, error) {
-	return nil, status.Error(codes.Unimplemented, "method TriggerOOMReport not implemented")
-}
-
 func (UnimplementedStartedServiceServer) SubscribeConnections(*SubscribeConnectionsRequest, grpc.ServerStreamingServer[ConnectionEvents]) error {
 	return status.Error(codes.Unimplemented, "method SubscribeConnections not implemented")
 }
@@ -599,26 +455,6 @@ func (UnimplementedStartedServiceServer) GetDeprecatedWarnings(context.Context,
 func (UnimplementedStartedServiceServer) GetStartedAt(context.Context, *emptypb.Empty) (*StartedAt, error) {
 	return nil, status.Error(codes.Unimplemented, "method GetStartedAt not implemented")
 }
-
-func (UnimplementedStartedServiceServer) SubscribeOutbounds(*emptypb.Empty, grpc.ServerStreamingServer[OutboundList]) error {
-	return status.Error(codes.Unimplemented, "method SubscribeOutbounds not implemented")
-}
-
-func (UnimplementedStartedServiceServer) StartNetworkQualityTest(*NetworkQualityTestRequest, grpc.ServerStreamingServer[NetworkQualityTestProgress]) error {
-	return status.Error(codes.Unimplemented, "method StartNetworkQualityTest not implemented")
-}
-
-func (UnimplementedStartedServiceServer) StartSTUNTest(*STUNTestRequest, grpc.ServerStreamingServer[STUNTestProgress]) error {
-	return status.Error(codes.Unimplemented, "method StartSTUNTest not implemented")
-}
-
-func (UnimplementedStartedServiceServer) SubscribeTailscaleStatus(*emptypb.Empty, grpc.ServerStreamingServer[TailscaleStatusUpdate]) error {
-	return status.Error(codes.Unimplemented, "method SubscribeTailscaleStatus not implemented")
-}
-
-func (UnimplementedStartedServiceServer) StartTailscalePing(*TailscalePingRequest, grpc.ServerStreamingServer[TailscalePingResponse]) error {
-	return status.Error(codes.Unimplemented, "method StartTailscalePing not implemented")
-}
 func (UnimplementedStartedServiceServer) mustEmbedUnimplementedStartedServiceServer() {}
 func (UnimplementedStartedServiceServer) testEmbeddedByValue()                        {}
 
@@ -893,42 +729,6 @@ func _StartedService_SetSystemProxyEnabled_Handler(srv interface{}, ctx context.
 	return interceptor(ctx, in, info, handler)
 }
 
-func _StartedService_TriggerDebugCrash_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(DebugCrashRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(StartedServiceServer).TriggerDebugCrash(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: StartedService_TriggerDebugCrash_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(StartedServiceServer).TriggerDebugCrash(ctx, req.(*DebugCrashRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _StartedService_TriggerOOMReport_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(emptypb.Empty)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(StartedServiceServer).TriggerOOMReport(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: StartedService_TriggerOOMReport_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(StartedServiceServer).TriggerOOMReport(ctx, req.(*emptypb.Empty))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
 func _StartedService_SubscribeConnections_Handler(srv interface{}, stream grpc.ServerStream) error {
 	m := new(SubscribeConnectionsRequest)
 	if err := stream.RecvMsg(m); err != nil {
@@ -1012,61 +812,6 @@ func _StartedService_GetStartedAt_Handler(srv interface{}, ctx context.Context,
 	return interceptor(ctx, in, info, handler)
 }
 
-func _StartedService_SubscribeOutbounds_Handler(srv interface{}, stream grpc.ServerStream) error {
-	m := new(emptypb.Empty)
-	if err := stream.RecvMsg(m); err != nil {
-		return err
-	}
-	return srv.(StartedServiceServer).SubscribeOutbounds(m, &grpc.GenericServerStream[emptypb.Empty, OutboundList]{ServerStream: stream})
-}
-
-// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
-type StartedService_SubscribeOutboundsServer = grpc.ServerStreamingServer[OutboundList]
-
-func _StartedService_StartNetworkQualityTest_Handler(srv interface{}, stream grpc.ServerStream) error {
-	m := new(NetworkQualityTestRequest)
-	if err := stream.RecvMsg(m); err != nil {
-		return err
-	}
-	return srv.(StartedServiceServer).StartNetworkQualityTest(m, &grpc.GenericServerStream[NetworkQualityTestRequest, NetworkQualityTestProgress]{ServerStream: stream})
-}
-
-// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
-type StartedService_StartNetworkQualityTestServer = grpc.ServerStreamingServer[NetworkQualityTestProgress]
-
-func _StartedService_StartSTUNTest_Handler(srv interface{}, stream grpc.ServerStream) error {
-	m := new(STUNTestRequest)
-	if err := stream.RecvMsg(m); err != nil {
-		return err
-	}
-	return srv.(StartedServiceServer).StartSTUNTest(m, &grpc.GenericServerStream[STUNTestRequest, STUNTestProgress]{ServerStream: stream})
-}
-
-// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
-type StartedService_StartSTUNTestServer = grpc.ServerStreamingServer[STUNTestProgress]
-
-func _StartedService_SubscribeTailscaleStatus_Handler(srv interface{}, stream grpc.ServerStream) error {
-	m := new(emptypb.Empty)
-	if err := stream.RecvMsg(m); err != nil {
-		return err
-	}
-	return srv.(StartedServiceServer).SubscribeTailscaleStatus(m, &grpc.GenericServerStream[emptypb.Empty, TailscaleStatusUpdate]{ServerStream: stream})
-}
-
-// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
-type StartedService_SubscribeTailscaleStatusServer = grpc.ServerStreamingServer[TailscaleStatusUpdate]
-
-func _StartedService_StartTailscalePing_Handler(srv interface{}, stream grpc.ServerStream) error {
-	m := new(TailscalePingRequest)
-	if err := stream.RecvMsg(m); err != nil {
-		return err
-	}
-	return srv.(StartedServiceServer).StartTailscalePing(m, &grpc.GenericServerStream[TailscalePingRequest, TailscalePingResponse]{ServerStream: stream})
-}
-
-// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
-type StartedService_StartTailscalePingServer = grpc.ServerStreamingServer[TailscalePingResponse]
-
 // StartedService_ServiceDesc is the grpc.ServiceDesc for StartedService service.
 // It's only intended for direct use with grpc.RegisterService,
 // and not to be introspected or modified (even as a copy)
@@ -1118,14 +863,6 @@ var StartedService_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "SetSystemProxyEnabled",
 			Handler:    _StartedService_SetSystemProxyEnabled_Handler,
 		},
-		{
-			MethodName: "TriggerDebugCrash",
-			Handler:    _StartedService_TriggerDebugCrash_Handler,
-		},
-		{
-			MethodName: "TriggerOOMReport",
-			Handler:    _StartedService_TriggerOOMReport_Handler,
-		},
 		{
 			MethodName: "CloseConnection",
 			Handler:    _StartedService_CloseConnection_Handler,
@@ -1174,31 +911,6 @@ var StartedService_ServiceDesc = grpc.ServiceDesc{
 			Handler:       _StartedService_SubscribeConnections_Handler,
 			ServerStreams: true,
 		},
-		{
-			StreamName:    "SubscribeOutbounds",
-			Handler:       _StartedService_SubscribeOutbounds_Handler,
-			ServerStreams: true,
-		},
-		{
-			StreamName:    "StartNetworkQualityTest",
-			Handler:       _StartedService_StartNetworkQualityTest_Handler,
-			ServerStreams: true,
-		},
-		{
-			StreamName:    "StartSTUNTest",
-			Handler:       _StartedService_StartSTUNTest_Handler,
-			ServerStreams: true,
-		},
-		{
-			StreamName:    "SubscribeTailscaleStatus",
-			Handler:       _StartedService_SubscribeTailscaleStatus_Handler,
-			ServerStreams: true,
-		},
-		{
-			StreamName:    "StartTailscalePing",
-			Handler:       _StartedService_StartTailscalePing_Handler,
-			ServerStreams: true,
-		},
 	},
 	Metadata: "daemon/started_service.proto",
 }

dns/client.go

@@ -5,6 +5,7 @@ import (
 	"errors"
 	"net"
 	"net/netip"
+	"strings"
 	"time"
 
 	"github.com/sagernet/sing-box/adapter"
@@ -13,6 +14,7 @@ import (
 	"github.com/sagernet/sing/common"
 	E "github.com/sagernet/sing/common/exceptions"
 	"github.com/sagernet/sing/common/logger"
+	M "github.com/sagernet/sing/common/metadata"
 	"github.com/sagernet/sing/common/task"
 	"github.com/sagernet/sing/contrab/freelru"
 	"github.com/sagernet/sing/contrab/maphash"
@@ -30,63 +32,59 @@ var (
 var _ adapter.DNSClient = (*Client)(nil)
 
 type Client struct {
-	ctx               context.Context
+	timeout            time.Duration
-	timeout           time.Duration
+	disableCache       bool
-	disableCache      bool
+	disableExpire      bool
-	disableExpire     bool
+	independentCache   bool
-	optimisticTimeout time.Duration
+	clientSubnet       netip.Prefix
-	cacheCapacity     uint32
+	rdrc               adapter.RDRCStore
-	clientSubnet      netip.Prefix
+	initRDRCFunc       func() adapter.RDRCStore
-	rdrc              adapter.RDRCStore
+	logger             logger.ContextLogger
-	initRDRCFunc      func() adapter.RDRCStore
+	cache              freelru.Cache[dns.Question, *dns.Msg]
-	dnsCache          adapter.DNSCacheStore
+	cacheLock          compatible.Map[dns.Question, chan struct{}]
-	initDNSCacheFunc  func() adapter.DNSCacheStore
+	transportCache     freelru.Cache[transportCacheKey, *dns.Msg]
-	logger            logger.ContextLogger
+	transportCacheLock compatible.Map[dns.Question, chan struct{}]
-	cache             freelru.Cache[dnsCacheKey, *dns.Msg]
-	cacheLock         compatible.Map[dnsCacheKey, chan struct{}]
-	backgroundRefresh compatible.Map[dnsCacheKey, struct{}]
 }
 
 type ClientOptions struct {
-	Context           context.Context
+	Timeout          time.Duration
-	Timeout           time.Duration
+	DisableCache     bool
-	DisableCache      bool
+	DisableExpire    bool
-	DisableExpire     bool
+	IndependentCache bool
-	OptimisticTimeout time.Duration
+	CacheCapacity    uint32
-	CacheCapacity     uint32
+	ClientSubnet     netip.Prefix
-	ClientSubnet      netip.Prefix
+	RDRC             func() adapter.RDRCStore
-	RDRC              func() adapter.RDRCStore
+	Logger           logger.ContextLogger
-	DNSCache          func() adapter.DNSCacheStore
-	Logger            logger.ContextLogger
 }
 
 func NewClient(options ClientOptions) *Client {
-	cacheCapacity := options.CacheCapacity
-	if cacheCapacity < 1024 {
-		cacheCapacity = 1024
-	}
 	client := &Client{
-		ctx:               options.Context,
+		timeout:          options.Timeout,
-		timeout:           options.Timeout,
+		disableCache:     options.DisableCache,
-		disableCache:      options.DisableCache,
+		disableExpire:    options.DisableExpire,
-		disableExpire:     options.DisableExpire,
+		independentCache: options.IndependentCache,
-		optimisticTimeout: options.OptimisticTimeout,
+		clientSubnet:     options.ClientSubnet,
-		cacheCapacity:     cacheCapacity,
+		initRDRCFunc:     options.RDRC,
-		clientSubnet:      options.ClientSubnet,
+		logger:           options.Logger,
-		initRDRCFunc:      options.RDRC,
-		initDNSCacheFunc:  options.DNSCache,
-		logger:            options.Logger,
 	}
 	if client.timeout == 0 {
 		client.timeout = C.DNSTimeout
 	}
-	if !client.disableCache && client.initDNSCacheFunc == nil {
+	cacheCapacity := options.CacheCapacity
-		client.initializeMemoryCache()
+	if cacheCapacity < 1024 {
+		cacheCapacity = 1024
+	}
+	if !client.disableCache {
+		if !client.independentCache {
+			client.cache = common.Must1(freelru.NewSharded[dns.Question, *dns.Msg](cacheCapacity, maphash.NewHasher[dns.Question]().Hash32))
+		} else {
+			client.transportCache = common.Must1(freelru.NewSharded[transportCacheKey, *dns.Msg](cacheCapacity, maphash.NewHasher[transportCacheKey]().Hash32))
+		}
 	}
 	return client
 }
 
-type dnsCacheKey struct {
+type transportCacheKey struct {
 	dns.Question
 	transportTag string
 }
@@ -95,19 +93,6 @@ func (c *Client) Start() {
 	if c.initRDRCFunc != nil {
 		c.rdrc = c.initRDRCFunc()
 	}
-	if c.initDNSCacheFunc != nil {
-		c.dnsCache = c.initDNSCacheFunc()
-	}
-	if c.dnsCache == nil {
-		c.initializeMemoryCache()
-	}
-}
-
-func (c *Client) initializeMemoryCache() {
-	if c.disableCache || c.cache != nil {
-		return
-	}
-	c.cache = common.Must1(freelru.NewSharded[dnsCacheKey, *dns.Msg](c.cacheCapacity, maphash.NewHasher[dnsCacheKey]().Hash32))
 }
 
 func extractNegativeTTL(response *dns.Msg) (uint32, bool) {
@@ -124,38 +109,7 @@ func extractNegativeTTL(response *dns.Msg) (uint32, bool) {
 	return 0, false
 }
 
-func computeTimeToLive(response *dns.Msg) uint32 {
+func (c *Client) Exchange(ctx context.Context, transport adapter.DNSTransport, message *dns.Msg, options adapter.DNSQueryOptions, responseChecker func(responseAddrs []netip.Addr) bool) (*dns.Msg, error) {
-	var timeToLive uint32
-	if len(response.Answer) == 0 {
-		if soaTTL, hasSOA := extractNegativeTTL(response); hasSOA {
-			return soaTTL
-		}
-	}
-	for _, recordList := range [][]dns.RR{response.Answer, response.Ns, response.Extra} {
-		for _, record := range recordList {
-			if record.Header().Rrtype == dns.TypeOPT {
-				continue
-			}
-			if timeToLive == 0 || record.Header().Ttl > 0 && record.Header().Ttl < timeToLive {
-				timeToLive = record.Header().Ttl
-			}
-		}
-	}
-	return timeToLive
-}
-
-func normalizeTTL(response *dns.Msg, timeToLive uint32) {
-	for _, recordList := range [][]dns.RR{response.Answer, response.Ns, response.Extra} {
-		for _, record := range recordList {
-			if record.Header().Rrtype == dns.TypeOPT {
-				continue
-			}
-			record.Header().Ttl = timeToLive
-		}
-	}
-}
-
-func (c *Client) Exchange(ctx context.Context, transport adapter.DNSTransport, message *dns.Msg, options adapter.DNSQueryOptions, responseChecker func(response *dns.Msg) bool) (*dns.Msg, error) {
 	if len(message.Question) == 0 {
 		if c.logger != nil {
 			c.logger.WarnContext(ctx, "bad question size: ", len(message.Question))
@@ -169,7 +123,13 @@ func (c *Client) Exchange(ctx context.Context, transport adapter.DNSTransport, m
 		}
 		return FixedResponseStatus(message, dns.RcodeSuccess), nil
 	}
-	message = c.prepareExchangeMessage(message, options)
+	clientSubnet := options.ClientSubnet
+	if !clientSubnet.IsValid() {
+		clientSubnet = c.clientSubnet
+	}
+	if clientSubnet.IsValid() {
+		message = SetClientSubnet(message, clientSubnet)
+	}
 
 	isSimpleRequest := len(message.Question) == 1 &&
 		len(message.Ns) == 0 &&
@@ -181,32 +141,40 @@ func (c *Client) Exchange(ctx context.Context, transport adapter.DNSTransport, m
 		!options.ClientSubnet.IsValid()
 	disableCache := !isSimpleRequest || c.disableCache || options.DisableCache
 	if !disableCache {
-		cacheKey := dnsCacheKey{Question: question, transportTag: transport.Tag()}
+		if c.cache != nil {
-		cond, loaded := c.cacheLock.LoadOrStore(cacheKey, make(chan struct{}))
+			cond, loaded := c.cacheLock.LoadOrStore(question, make(chan struct{}))
-		if loaded {
+			if loaded {
-			select {
+				select {
-			case <-cond:
+				case <-cond:
-			case <-ctx.Done():
+				case <-ctx.Done():
-				return nil, ctx.Err()
+					return nil, ctx.Err()
+				}
+			} else {
+				defer func() {
+					c.cacheLock.Delete(question)
+					close(cond)
+				}()
+			}
+		} else if c.transportCache != nil {
+			cond, loaded := c.transportCacheLock.LoadOrStore(question, make(chan struct{}))
+			if loaded {
+				select {
+				case <-cond:
+				case <-ctx.Done():
+					return nil, ctx.Err()
+				}
+			} else {
+				defer func() {
+					c.transportCacheLock.Delete(question)
+					close(cond)
+				}()
 			}
-		} else {
-			defer func() {
-				c.cacheLock.Delete(cacheKey)
-				close(cond)
-			}()
 		}
-		response, ttl, isStale := c.loadResponse(question, transport)
+		response, ttl := c.loadResponse(question, transport)
 		if response != nil {
-			if isStale && !options.DisableOptimisticCache {
+			logCachedResponse(c.logger, ctx, response, ttl)
-				c.backgroundRefreshDNS(transport, question, message.Copy(), options, responseChecker)
+			response.Id = message.Id
-				logOptimisticResponse(c.logger, ctx, response)
+			return response, nil
-				response.Id = message.Id
-				return response, nil
-			} else if !isStale {
-				logCachedResponse(c.logger, ctx, response, ttl)
-				response.Id = message.Id
-				return response, nil
-			}
 		}
 	}
 
@@ -222,17 +190,62 @@ func (c *Client) Exchange(ctx context.Context, transport adapter.DNSTransport, m
 			return nil, ErrResponseRejectedCached
 		}
 	}
-	response, err := c.exchangeToTransport(ctx, transport, message)
+	ctx, cancel := context.WithTimeout(ctx, c.timeout)
+	response, err := transport.Exchange(ctx, message)
+	cancel()
 	if err != nil {
-		return nil, err
+		var rcodeError RcodeError
+		if errors.As(err, &rcodeError) {
+			response = FixedResponseStatus(message, int(rcodeError))
+		} else {
+			return nil, err
+		}
 	}
+	/*if question.Qtype == dns.TypeA || question.Qtype == dns.TypeAAAA {
+		validResponse := response
+	loop:
+		for {
+			var (
+				addresses  int
+				queryCNAME string
+			)
+			for _, rawRR := range validResponse.Answer {
+				switch rr := rawRR.(type) {
+				case *dns.A:
+					break loop
+				case *dns.AAAA:
+					break loop
+				case *dns.CNAME:
+					queryCNAME = rr.Target
+				}
+			}
+			if queryCNAME == "" {
+				break
+			}
+			exMessage := *message
+			exMessage.Question = []dns.Question{{
+				Name:  queryCNAME,
+				Qtype: question.Qtype,
+			}}
+			validResponse, err = c.Exchange(ctx, transport, &exMessage, options, responseChecker)
+			if err != nil {
+				return nil, err
+			}
+		}
+		if validResponse != response {
+			response.Answer = append(response.Answer, validResponse.Answer...)
+		}
+	}*/
 	disableCache = disableCache || (response.Rcode != dns.RcodeSuccess && response.Rcode != dns.RcodeNameError)
 	if responseChecker != nil {
 		var rejected bool
+		// TODO: add accept_any rule and support to check response instead of addresses
 		if response.Rcode != dns.RcodeSuccess && response.Rcode != dns.RcodeNameError {
 			rejected = true
+		} else if len(response.Answer) == 0 {
+			rejected = !responseChecker(nil)
 		} else {
-			rejected = !responseChecker(response)
+			rejected = !responseChecker(MessageToAddresses(response))
 		}
 		if rejected {
 			if !disableCache && c.rdrc != nil {
@@ -242,7 +255,48 @@ func (c *Client) Exchange(ctx context.Context, transport adapter.DNSTransport, m
 			return response, ErrResponseRejected
 		}
 	}
-	timeToLive := applyResponseOptions(question, response, options)
+	if question.Qtype == dns.TypeHTTPS {
+		if options.Strategy == C.DomainStrategyIPv4Only || options.Strategy == C.DomainStrategyIPv6Only {
+			for _, rr := range response.Answer {
+				https, isHTTPS := rr.(*dns.HTTPS)
+				if !isHTTPS {
+					continue
+				}
+				content := https.SVCB
+				content.Value = common.Filter(content.Value, func(it dns.SVCBKeyValue) bool {
+					if options.Strategy == C.DomainStrategyIPv4Only {
+						return it.Key() != dns.SVCB_IPV6HINT
+					} else {
+						return it.Key() != dns.SVCB_IPV4HINT
+					}
+				})
+				https.SVCB = content
+			}
+		}
+	}
+	var timeToLive uint32
+	if len(response.Answer) == 0 {
+		if soaTTL, hasSOA := extractNegativeTTL(response); hasSOA {
+			timeToLive = soaTTL
+		}
+	}
+	if timeToLive == 0 {
+		for _, recordList := range [][]dns.RR{response.Answer, response.Ns, response.Extra} {
+			for _, record := range recordList {
+				if timeToLive == 0 || record.Header().Ttl > 0 && record.Header().Ttl < timeToLive {
+					timeToLive = record.Header().Ttl
+				}
+			}
+		}
+	}
+	if options.RewriteTTL != nil {
+		timeToLive = *options.RewriteTTL
+	}
+	for _, recordList := range [][]dns.RR{response.Answer, response.Ns, response.Extra} {
+		for _, record := range recordList {
+			record.Header().Ttl = timeToLive
+		}
+	}
 	if !disableCache {
 		c.storeCache(transport, question, response, timeToLive)
 	}
@@ -261,7 +315,7 @@ func (c *Client) Exchange(ctx context.Context, transport adapter.DNSTransport, m
 	return response, nil
 }
 
-func (c *Client) Lookup(ctx context.Context, transport adapter.DNSTransport, domain string, options adapter.DNSQueryOptions, responseChecker func(response *dns.Msg) bool) ([]netip.Addr, error) {
+func (c *Client) Lookup(ctx context.Context, transport adapter.DNSTransport, domain string, options adapter.DNSQueryOptions, responseChecker func(responseAddrs []netip.Addr) bool) ([]netip.Addr, error) {
 	domain = FqdnToDomain(domain)
 	dnsName := dns.Fqdn(domain)
 	var strategy C.DomainStrategy
@@ -308,12 +362,8 @@ func (c *Client) Lookup(ctx context.Context, transport adapter.DNSTransport, dom
 func (c *Client) ClearCache() {
 	if c.cache != nil {
 		c.cache.Purge()
-	}
+	} else if c.transportCache != nil {
-	if c.dnsCache != nil {
+		c.transportCache.Purge()
-		err := c.dnsCache.ClearDNSCache()
-		if err != nil && c.logger != nil {
-			c.logger.Warn("clear DNS cache: ", err)
-		}
 	}
 }
 
@@ -329,44 +379,46 @@ func (c *Client) storeCache(transport adapter.DNSTransport, question dns.Questio
 	if timeToLive == 0 {
 		return
 	}
-	if c.dnsCache != nil {
-		packed, err := message.Pack()
-		if err == nil {
-			expireAt := time.Now().Add(time.Second * time.Duration(timeToLive))
-			c.dnsCache.SaveDNSCacheAsync(transport.Tag(), question.Name, question.Qtype, packed, expireAt, c.logger)
-		}
-		return
-	}
-	if c.cache == nil {
-		return
-	}
-	key := dnsCacheKey{Question: question, transportTag: transport.Tag()}
 	if c.disableExpire {
-		c.cache.Add(key, message.Copy())
+		if !c.independentCache {
+			c.cache.Add(question, message)
+		} else {
+			c.transportCache.Add(transportCacheKey{
+				Question:     question,
+				transportTag: transport.Tag(),
+			}, message)
+		}
 	} else {
-		c.cache.AddWithLifetime(key, message.Copy(), time.Second*time.Duration(timeToLive))
+		if !c.independentCache {
+			c.cache.AddWithLifetime(question, message, time.Second*time.Duration(timeToLive))
+		} else {
+			c.transportCache.AddWithLifetime(transportCacheKey{
+				Question:     question,
+				transportTag: transport.Tag(),
+			}, message, time.Second*time.Duration(timeToLive))
+		}
 	}
 }
 
-func (c *Client) lookupToExchange(ctx context.Context, transport adapter.DNSTransport, name string, qType uint16, options adapter.DNSQueryOptions, responseChecker func(response *dns.Msg) bool) ([]netip.Addr, error) {
+func (c *Client) lookupToExchange(ctx context.Context, transport adapter.DNSTransport, name string, qType uint16, options adapter.DNSQueryOptions, responseChecker func(responseAddrs []netip.Addr) bool) ([]netip.Addr, error) {
 	question := dns.Question{
 		Name:   name,
 		Qtype:  qType,
 		Qclass: dns.ClassINET,
 	}
+	disableCache := c.disableCache || options.DisableCache
+	if !disableCache {
+		cachedAddresses, err := c.questionCache(question, transport)
+		if err != ErrNotCached {
+			return cachedAddresses, err
+		}
+	}
 	message := dns.Msg{
 		MsgHdr: dns.MsgHdr{
 			RecursionDesired: true,
 		},
 		Question: []dns.Question{question},
 	}
-	disableCache := c.disableCache || options.DisableCache
-	if !disableCache {
-		cachedAddresses, err := c.questionCache(ctx, transport, &message, options, responseChecker)
-		if err != ErrNotCached {
-			return cachedAddresses, err
-		}
-	}
 	response, err := c.Exchange(ctx, transport, &message, options, responseChecker)
 	if err != nil {
 		return nil, err
@@ -377,181 +429,111 @@ func (c *Client) lookupToExchange(ctx context.Context, transport adapter.DNSTran
 	return MessageToAddresses(response), nil
 }
 
-func (c *Client) questionCache(ctx context.Context, transport adapter.DNSTransport, message *dns.Msg, options adapter.DNSQueryOptions, responseChecker func(response *dns.Msg) bool) ([]netip.Addr, error) {
+func (c *Client) questionCache(question dns.Question, transport adapter.DNSTransport) ([]netip.Addr, error) {
-	question := message.Question[0]
+	response, _ := c.loadResponse(question, transport)
-	response, _, isStale := c.loadResponse(question, transport)
 	if response == nil {
 		return nil, ErrNotCached
 	}
-	if isStale {
-		if options.DisableOptimisticCache {
-			return nil, ErrNotCached
-		}
-		c.backgroundRefreshDNS(transport, question, c.prepareExchangeMessage(message.Copy(), options), options, responseChecker)
-		logOptimisticResponse(c.logger, ctx, response)
-	}
 	if response.Rcode != dns.RcodeSuccess {
 		return nil, RcodeError(response.Rcode)
 	}
 	return MessageToAddresses(response), nil
 }
 
-func (c *Client) loadResponse(question dns.Question, transport adapter.DNSTransport) (*dns.Msg, int, bool) {
+func (c *Client) loadResponse(question dns.Question, transport adapter.DNSTransport) (*dns.Msg, int) {
-	if c.dnsCache != nil {
+	var (
-		return c.loadPersistentResponse(question, transport)
+		response *dns.Msg
-	}
+		loaded   bool
-	if c.cache == nil {
+	)
-		return nil, 0, false
-	}
-	key := dnsCacheKey{Question: question, transportTag: transport.Tag()}
 	if c.disableExpire {
-		response, loaded := c.cache.Get(key)
+		if !c.independentCache {
-		if !loaded {
+			response, loaded = c.cache.Get(question)
-			return nil, 0, false
+		} else {
-		}
+			response, loaded = c.transportCache.Get(transportCacheKey{
-		return response.Copy(), 0, false
+				Question:     question,
-	}
+				transportTag: transport.Tag(),
-	response, expireAt, loaded := c.cache.GetWithLifetimeNoExpire(key)
-	if !loaded {
-		return nil, 0, false
-	}
-	timeNow := time.Now()
-	if timeNow.After(expireAt) {
-		if c.optimisticTimeout > 0 && timeNow.Before(expireAt.Add(c.optimisticTimeout)) {
-			response = response.Copy()
-			normalizeTTL(response, 1)
-			return response, 0, true
-		}
-		c.cache.Remove(key)
-		return nil, 0, false
-	}
-	nowTTL := int(expireAt.Sub(timeNow).Seconds())
-	if nowTTL < 0 {
-		nowTTL = 0
-	}
-	response = response.Copy()
-	normalizeTTL(response, uint32(nowTTL))
-	return response, nowTTL, false
-}
-
-func (c *Client) loadPersistentResponse(question dns.Question, transport adapter.DNSTransport) (*dns.Msg, int, bool) {
-	rawMessage, expireAt, loaded := c.dnsCache.LoadDNSCache(transport.Tag(), question.Name, question.Qtype)
-	if !loaded {
-		return nil, 0, false
-	}
-	response := new(dns.Msg)
-	err := response.Unpack(rawMessage)
-	if err != nil {
-		return nil, 0, false
-	}
-	if c.disableExpire {
-		return response, 0, false
-	}
-	timeNow := time.Now()
-	if timeNow.After(expireAt) {
-		if c.optimisticTimeout > 0 && timeNow.Before(expireAt.Add(c.optimisticTimeout)) {
-			normalizeTTL(response, 1)
-			return response, 0, true
-		}
-		return nil, 0, false
-	}
-	nowTTL := int(expireAt.Sub(timeNow).Seconds())
-	if nowTTL < 0 {
-		nowTTL = 0
-	}
-	normalizeTTL(response, uint32(nowTTL))
-	return response, nowTTL, false
-}
-
-func applyResponseOptions(question dns.Question, response *dns.Msg, options adapter.DNSQueryOptions) uint32 {
-	if question.Qtype == dns.TypeHTTPS && (options.Strategy == C.DomainStrategyIPv4Only || options.Strategy == C.DomainStrategyIPv6Only) {
-		for _, rr := range response.Answer {
-			https, isHTTPS := rr.(*dns.HTTPS)
-			if !isHTTPS {
-				continue
-			}
-			content := https.SVCB
-			content.Value = common.Filter(content.Value, func(it dns.SVCBKeyValue) bool {
-				if options.Strategy == C.DomainStrategyIPv4Only {
-					return it.Key() != dns.SVCB_IPV6HINT
-				}
-				return it.Key() != dns.SVCB_IPV4HINT
 			})
-			https.SVCB = content
 		}
-	}
+		if !loaded {
-	timeToLive := computeTimeToLive(response)
+			return nil, 0
-	if options.RewriteTTL != nil {
-		timeToLive = *options.RewriteTTL
-	}
-	normalizeTTL(response, timeToLive)
-	return timeToLive
-}
-
-func (c *Client) backgroundRefreshDNS(transport adapter.DNSTransport, question dns.Question, message *dns.Msg, options adapter.DNSQueryOptions, responseChecker func(response *dns.Msg) bool) {
-	key := dnsCacheKey{Question: question, transportTag: transport.Tag()}
-	_, loaded := c.backgroundRefresh.LoadOrStore(key, struct{}{})
-	if loaded {
-		return
-	}
-	go func() {
-		defer c.backgroundRefresh.Delete(key)
-		ctx := contextWithTransportTag(c.ctx, transport.Tag())
-		response, err := c.exchangeToTransport(ctx, transport, message)
-		if err != nil {
-			if c.logger != nil {
-				c.logger.Debug("optimistic refresh failed for ", FqdnToDomain(question.Name), ": ", err)
-			}
-			return
 		}
-		if responseChecker != nil {
+		return response.Copy(), 0
-			var rejected bool
+	} else {
-			if response.Rcode != dns.RcodeSuccess && response.Rcode != dns.RcodeNameError {
+		var expireAt time.Time
-				rejected = true
+		if !c.independentCache {
+			response, expireAt, loaded = c.cache.GetWithLifetime(question)
+		} else {
+			response, expireAt, loaded = c.transportCache.GetWithLifetime(transportCacheKey{
+				Question:     question,
+				transportTag: transport.Tag(),
+			})
+		}
+		if !loaded {
+			return nil, 0
+		}
+		timeNow := time.Now()
+		if timeNow.After(expireAt) {
+			if !c.independentCache {
+				c.cache.Remove(question)
 			} else {
-				rejected = !responseChecker(response)
+				c.transportCache.Remove(transportCacheKey{
+					Question:     question,
+					transportTag: transport.Tag(),
+				})
 			}
-			if rejected {
+			return nil, 0
-				if c.rdrc != nil {
-					c.rdrc.SaveRDRCAsync(transport.Tag(), question.Name, question.Qtype, c.logger)
-				}
-				return
-			}
-		} else if response.Rcode != dns.RcodeSuccess && response.Rcode != dns.RcodeNameError {
-			return
 		}
-		timeToLive := applyResponseOptions(question, response, options)
+		var originTTL int
-		c.storeCache(transport, question, response, timeToLive)
+		for _, recordList := range [][]dns.RR{response.Answer, response.Ns, response.Extra} {
-	}()
+			for _, record := range recordList {
-}
+				if originTTL == 0 || record.Header().Ttl > 0 && int(record.Header().Ttl) < originTTL {
-
+					originTTL = int(record.Header().Ttl)
-func (c *Client) prepareExchangeMessage(message *dns.Msg, options adapter.DNSQueryOptions) *dns.Msg {
+				}
-	clientSubnet := options.ClientSubnet
+			}
-	if !clientSubnet.IsValid() {
+		}
-		clientSubnet = c.clientSubnet
+		nowTTL := int(expireAt.Sub(timeNow).Seconds())
+		if nowTTL < 0 {
+			nowTTL = 0
+		}
+		response = response.Copy()
+		if originTTL > 0 {
+			duration := uint32(originTTL - nowTTL)
+			for _, recordList := range [][]dns.RR{response.Answer, response.Ns, response.Extra} {
+				for _, record := range recordList {
+					record.Header().Ttl = record.Header().Ttl - duration
+				}
+			}
+		} else {
+			for _, recordList := range [][]dns.RR{response.Answer, response.Ns, response.Extra} {
+				for _, record := range recordList {
+					record.Header().Ttl = uint32(nowTTL)
+				}
+			}
+		}
+		return response, nowTTL
 	}
-	if clientSubnet.IsValid() {
-		message = SetClientSubnet(message, clientSubnet)
-	}
-	return message
-}
-
-func (c *Client) exchangeToTransport(ctx context.Context, transport adapter.DNSTransport, message *dns.Msg) (*dns.Msg, error) {
-	ctx, cancel := context.WithTimeout(ctx, c.timeout)
-	defer cancel()
-	response, err := transport.Exchange(ctx, message)
-	if err == nil {
-		return response, nil
-	}
-	var rcodeError RcodeError
-	if errors.As(err, &rcodeError) {
-		return FixedResponseStatus(message, int(rcodeError)), nil
-	}
-	return nil, err
 }
 
 func MessageToAddresses(response *dns.Msg) []netip.Addr {
-	return adapter.DNSResponseAddresses(response)
+	if response == nil || response.Rcode != dns.RcodeSuccess {
+		return nil
+	}
+	addresses := make([]netip.Addr, 0, len(response.Answer))
+	for _, rawAnswer := range response.Answer {
+		switch answer := rawAnswer.(type) {
+		case *dns.A:
+			addresses = append(addresses, M.AddrFromIP(answer.A))
+		case *dns.AAAA:
+			addresses = append(addresses, M.AddrFromIP(answer.AAAA))
+		case *dns.HTTPS:
+			for _, value := range answer.SVCB.Value {
+				if value.Key() == dns.SVCB_IPV4HINT || value.Key() == dns.SVCB_IPV6HINT {
+					addresses = append(addresses, common.Map(strings.Split(value.String(), ","), M.ParseAddr)...)
+				}
+			}
+		}
+	}
+	return addresses
 }
 
 func wrapError(err error) error {

dns/client_log.go

@@ -22,19 +22,6 @@ func logCachedResponse(logger logger.ContextLogger, ctx context.Context, respons
 	}
 }
 
-func logOptimisticResponse(logger logger.ContextLogger, ctx context.Context, response *dns.Msg) {
-	if logger == nil || len(response.Question) == 0 {
-		return
-	}
-	domain := FqdnToDomain(response.Question[0].Name)
-	logger.DebugContext(ctx, "optimistic ", domain, " ", dns.RcodeToString[response.Rcode])
-	for _, recordList := range [][]dns.RR{response.Answer, response.Ns, response.Extra} {
-		for _, record := range recordList {
-			logger.InfoContext(ctx, "optimistic ", dns.Type(record.Header().Rrtype).String(), " ", FormatQuestion(record.String()))
-		}
-	}
-}
-
 func logExchangedResponse(logger logger.ContextLogger, ctx context.Context, response *dns.Msg, ttl uint32) {
 	if logger == nil || len(response.Question) == 0 {
 		return

dns/rcode.go

@@ -5,11 +5,10 @@ import (
 )
 
 const (
-	RcodeSuccess       RcodeError = mDNS.RcodeSuccess
+	RcodeSuccess     RcodeError = mDNS.RcodeSuccess
-	RcodeServerFailure RcodeError = mDNS.RcodeServerFailure
+	RcodeFormatError RcodeError = mDNS.RcodeFormatError
-	RcodeFormatError   RcodeError = mDNS.RcodeFormatError
+	RcodeNameError   RcodeError = mDNS.RcodeNameError
-	RcodeNameError     RcodeError = mDNS.RcodeNameError
+	RcodeRefused     RcodeError = mDNS.RcodeRefused
-	RcodeRefused       RcodeError = mDNS.RcodeRefused
 )
 
 type RcodeError int

dns/repro_test.go

@@ -1,111 +0,0 @@
-package dns
-
-import (
-	"context"
-	"net/netip"
-	"testing"
-
-	"github.com/sagernet/sing-box/adapter"
-	C "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing-box/option"
-	E "github.com/sagernet/sing/common/exceptions"
-	"github.com/sagernet/sing/common/json/badoption"
-
-	mDNS "github.com/miekg/dns"
-	"github.com/stretchr/testify/require"
-)
-
-func TestReproLookupWithRulesUsesRequestStrategy(t *testing.T) {
-	t.Parallel()
-
-	defaultTransport := &fakeDNSTransport{tag: "default", transportType: C.DNSTypeUDP}
-	var qTypes []uint16
-	router := newTestRouter(t, nil, &fakeDNSTransportManager{
-		defaultTransport: defaultTransport,
-		transports: map[string]adapter.DNSTransport{
-			"default": defaultTransport,
-		},
-	}, &fakeDNSClient{
-		exchange: func(transport adapter.DNSTransport, message *mDNS.Msg) (*mDNS.Msg, error) {
-			qTypes = append(qTypes, message.Question[0].Qtype)
-			if message.Question[0].Qtype == mDNS.TypeA {
-				return FixedResponse(0, message.Question[0], []netip.Addr{netip.MustParseAddr("2.2.2.2")}, 60), nil
-			}
-			return FixedResponse(0, message.Question[0], []netip.Addr{netip.MustParseAddr("2001:db8::1")}, 60), nil
-		},
-	})
-
-	addresses, err := router.Lookup(context.Background(), "example.com", adapter.DNSQueryOptions{
-		Strategy: C.DomainStrategyIPv4Only,
-	})
-	require.NoError(t, err)
-	require.Equal(t, []uint16{mDNS.TypeA}, qTypes)
-	require.Equal(t, []netip.Addr{netip.MustParseAddr("2.2.2.2")}, addresses)
-}
-
-func TestReproLogicalMatchResponseIPCIDR(t *testing.T) {
-	t.Parallel()
-
-	transportManager := &fakeDNSTransportManager{
-		defaultTransport: &fakeDNSTransport{tag: "default", transportType: C.DNSTypeUDP},
-		transports: map[string]adapter.DNSTransport{
-			"upstream": &fakeDNSTransport{tag: "upstream", transportType: C.DNSTypeUDP},
-			"selected": &fakeDNSTransport{tag: "selected", transportType: C.DNSTypeUDP},
-			"default":  &fakeDNSTransport{tag: "default", transportType: C.DNSTypeUDP},
-		},
-	}
-	client := &fakeDNSClient{
-		exchange: func(transport adapter.DNSTransport, message *mDNS.Msg) (*mDNS.Msg, error) {
-			switch transport.Tag() {
-			case "upstream":
-				return FixedResponse(0, message.Question[0], []netip.Addr{netip.MustParseAddr("1.1.1.1")}, 60), nil
-			case "selected":
-				return FixedResponse(0, message.Question[0], []netip.Addr{netip.MustParseAddr("8.8.8.8")}, 60), nil
-			default:
-				return nil, E.New("unexpected transport")
-			}
-		},
-	}
-	rules := []option.DNSRule{
-		{
-			Type: C.RuleTypeDefault,
-			DefaultOptions: option.DefaultDNSRule{
-				RawDefaultDNSRule: option.RawDefaultDNSRule{
-					Domain: badoption.Listable[string]{"example.com"},
-				},
-				DNSRuleAction: option.DNSRuleAction{
-					Action:       C.RuleActionTypeEvaluate,
-					RouteOptions: option.DNSRouteActionOptions{Server: "upstream"},
-				},
-			},
-		},
-		{
-			Type: C.RuleTypeLogical,
-			LogicalOptions: option.LogicalDNSRule{
-				RawLogicalDNSRule: option.RawLogicalDNSRule{
-					Mode: C.LogicalTypeOr,
-					Rules: []option.DNSRule{{
-						Type: C.RuleTypeDefault,
-						DefaultOptions: option.DefaultDNSRule{
-							RawDefaultDNSRule: option.RawDefaultDNSRule{
-								MatchResponse: true,
-								IPCIDR:        badoption.Listable[string]{"1.1.1.0/24"},
-							},
-						},
-					}},
-				},
-				DNSRuleAction: option.DNSRuleAction{
-					Action:       C.RuleActionTypeRoute,
-					RouteOptions: option.DNSRouteActionOptions{Server: "selected"},
-				},
-			},
-		},
-	}
-	router := newTestRouter(t, rules, transportManager, client)
-
-	response, err := router.Exchange(context.Background(), &mDNS.Msg{
-		Question: []mDNS.Question{fixedQuestion("example.com", mDNS.TypeA)},
-	}, adapter.DNSQueryOptions{})
-	require.NoError(t, err)
-	require.Equal(t, []netip.Addr{netip.MustParseAddr("8.8.8.8")}, MessageToAddresses(response))
-}

dns/transport/https.go

@@ -3,18 +3,17 @@ package transport
 import (
 	"bytes"
 	"context"
-	"encoding/base64"
 	"errors"
 	"io"
+	"net"
 	"net/http"
 	"net/url"
-	"strings"
+	"strconv"
 	"sync"
 	"time"
 
 	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-box/common/dialer"
-	"github.com/sagernet/sing-box/common/httpclient"
 	"github.com/sagernet/sing-box/common/tls"
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/dns"
@@ -45,20 +44,14 @@ type HTTPSTransport struct {
 	logger           logger.ContextLogger
 	dialer           N.Dialer
 	destination      *url.URL
-	method           string
+	headers          http.Header
-	host             string
-	queryHeaders     http.Header
 	transportAccess  sync.Mutex
-	transport        *httpclient.Client
+	transport        *HTTPSTransportWrapper
 	transportResetAt time.Time
 }
 
 func NewHTTPS(ctx context.Context, logger log.ContextLogger, tag string, options option.RemoteHTTPSDNSServerOptions) (adapter.DNSTransport, error) {
-	remoteOptions := option.RemoteDNSServerOptions{
+	transportDialer, err := dns.NewRemoteDialer(ctx, options.RemoteDNSServerOptions)
-		DNSServerAddressOptions: options.DNSServerAddressOptions,
-	}
-	remoteOptions.DialerOptions = options.DialerOptions
-	transportDialer, err := dns.NewRemoteDialer(ctx, remoteOptions)
 	if err != nil {
 		return nil, err
 	}
@@ -69,21 +62,28 @@ func NewHTTPS(ctx context.Context, logger log.ContextLogger, tag string, options
 		return nil, err
 	}
 	if len(tlsConfig.NextProtos()) == 0 {
-		tlsConfig.SetNextProtos([]string{http2.NextProtoTLS})
+		tlsConfig.SetNextProtos([]string{http2.NextProtoTLS, "http/1.1"})
-	} else if !common.Contains(tlsConfig.NextProtos(), http2.NextProtoTLS) {
-		tlsConfig.SetNextProtos(append([]string{http2.NextProtoTLS}, tlsConfig.NextProtos()...))
 	}
 	headers := options.Headers.Build()
-	serverAddr := options.DNSServerAddressOptions.Build()
+	host := headers.Get("Host")
-	if serverAddr.Port == 0 {
+	if host != "" {
-		serverAddr.Port = 443
+		headers.Del("Host")
-	}
+	} else {
-	if !serverAddr.IsValid() {
+		if tlsConfig.ServerName() != "" {
-		return nil, E.New("invalid server address: ", serverAddr)
+			host = tlsConfig.ServerName()
+		} else {
+			host = options.Server
+		}
 	}
 	destinationURL := url.URL{
 		Scheme: "https",
-		Host:   doHURLHost(serverAddr, 443),
+		Host:   host,
+	}
+	if destinationURL.Host == "" {
+		destinationURL.Host = options.Server
+	}
+	if options.ServerPort != 0 && options.ServerPort != 443 {
+		destinationURL.Host = net.JoinHostPort(destinationURL.Host, strconv.Itoa(int(options.ServerPort)))
 	}
 	path := options.Path
 	if path == "" {
@@ -93,67 +93,41 @@ func NewHTTPS(ctx context.Context, logger log.ContextLogger, tag string, options
 	if err != nil {
 		return nil, err
 	}
-	method := strings.ToUpper(options.Method)
+	serverAddr := options.DNSServerAddressOptions.Build()
-	if method == "" {
+	if serverAddr.Port == 0 {
-		method = http.MethodPost
+		serverAddr.Port = 443
 	}
-	switch method {
+	if !serverAddr.IsValid() {
-	case http.MethodGet, http.MethodPost:
+		return nil, E.New("invalid server address: ", serverAddr)
-	default:
-		return nil, E.New("unsupported HTTPS DNS method: ", options.Method)
 	}
-	httpClientOptions := options.HTTPClientOptions
+	return NewHTTPSRaw(
-	return NewHTTPRaw(
+		dns.NewTransportAdapterWithRemoteOptions(C.DNSTypeHTTPS, tag, options.RemoteDNSServerOptions),
-		dns.NewTransportAdapterWithRemoteOptions(C.DNSTypeHTTPS, tag, remoteOptions),
 		logger,
 		transportDialer,
 		&destinationURL,
 		headers,
+		serverAddr,
 		tlsConfig,
-		httpClientOptions,
+	), nil
-		method,
-	)
 }
 
-func NewHTTPRaw(
+func NewHTTPSRaw(
 	adapter dns.TransportAdapter,
-	logger logger.ContextLogger,
+	logger log.ContextLogger,
 	dialer N.Dialer,
 	destination *url.URL,
 	headers http.Header,
+	serverAddr M.Socksaddr,
 	tlsConfig tls.Config,
-	httpClientOptions option.HTTPClientOptions,
+) *HTTPSTransport {
-	method string,
-) (*HTTPSTransport, error) {
-	if destination.Scheme == "https" && tlsConfig == nil {
-		return nil, E.New("TLS transport unavailable")
-	}
-	queryHeaders := headers.Clone()
-	if queryHeaders == nil {
-		queryHeaders = make(http.Header)
-	}
-	host := queryHeaders.Get("Host")
-	queryHeaders.Del("Host")
-	queryHeaders.Set("Accept", MimeType)
-	if method == http.MethodPost {
-		queryHeaders.Set("Content-Type", MimeType)
-	}
-	httpClientOptions.Tag = ""
-	httpClientOptions.Headers = nil
-	currentTransport, err := httpclient.NewClientWithDialer(dialer, tlsConfig, "", httpClientOptions)
-	if err != nil {
-		return nil, err
-	}
 	return &HTTPSTransport{
 		TransportAdapter: adapter,
 		logger:           logger,
 		dialer:           dialer,
 		destination:      destination,
-		method:           method,
+		headers:          headers,
-		host:             host,
+		transport:        NewHTTPSTransportWrapper(tls.NewDialer(dialer, tlsConfig), serverAddr),
-		queryHeaders:     queryHeaders,
+	}
-		transport:        currentTransport,
-	}, nil
 }
 
 func (t *HTTPSTransport) Start(stage adapter.StartStage) error {
@@ -207,25 +181,14 @@ func (t *HTTPSTransport) exchange(ctx context.Context, message *mDNS.Msg) (*mDNS
 		requestBuffer.Release()
 		return nil, err
 	}
-	requestURL := *t.destination
+	request, err := http.NewRequestWithContext(ctx, http.MethodPost, t.destination.String(), bytes.NewReader(rawMessage))
-	var request *http.Request
-	switch t.method {
-	case http.MethodGet:
-		query := requestURL.Query()
-		query.Set("dns", base64.RawURLEncoding.EncodeToString(rawMessage))
-		requestURL.RawQuery = query.Encode()
-		request, err = http.NewRequestWithContext(ctx, http.MethodGet, requestURL.String(), nil)
-	default:
-		request, err = http.NewRequestWithContext(ctx, http.MethodPost, requestURL.String(), bytes.NewReader(rawMessage))
-	}
 	if err != nil {
 		requestBuffer.Release()
 		return nil, err
 	}
-	request.Header = t.queryHeaders.Clone()
+	request.Header = t.headers.Clone()
-	if t.host != "" {
+	request.Header.Set("Content-Type", MimeType)
-		request.Host = t.host
+	request.Header.Set("Accept", MimeType)
-	}
 	t.transportAccess.Lock()
 	currentTransport := t.transport
 	t.transportAccess.Unlock()
@@ -259,13 +222,3 @@ func (t *HTTPSTransport) exchange(ctx context.Context, message *mDNS.Msg) (*mDNS
 	}
 	return &responseMessage, nil
 }
-
-func doHURLHost(serverAddr M.Socksaddr, defaultPort uint16) string {
-	if serverAddr.Port != defaultPort {
-		return serverAddr.String()
-	}
-	if serverAddr.IsIPv6() {
-		return "[" + serverAddr.AddrString() + "]"
-	}
-	return serverAddr.AddrString()
-}

dns/transport/https_transport.go

@@ -0,0 +1,80 @@
+package transport
+
+import (
+	"context"
+	"errors"
+	"net"
+	"net/http"
+	"sync/atomic"
+
+	"github.com/sagernet/sing-box/common/tls"
+	E "github.com/sagernet/sing/common/exceptions"
+	M "github.com/sagernet/sing/common/metadata"
+
+	"golang.org/x/net/http2"
+)
+
+var errFallback = E.New("fallback to HTTP/1.1")
+
+type HTTPSTransportWrapper struct {
+	http2Transport *http2.Transport
+	httpTransport  *http.Transport
+	fallback       *atomic.Bool
+}
+
+func NewHTTPSTransportWrapper(dialer tls.Dialer, serverAddr M.Socksaddr) *HTTPSTransportWrapper {
+	var fallback atomic.Bool
+	return &HTTPSTransportWrapper{
+		http2Transport: &http2.Transport{
+			DialTLSContext: func(ctx context.Context, _, _ string, _ *tls.STDConfig) (net.Conn, error) {
+				tlsConn, err := dialer.DialTLSContext(ctx, serverAddr)
+				if err != nil {
+					return nil, err
+				}
+				state := tlsConn.ConnectionState()
+				if state.NegotiatedProtocol == http2.NextProtoTLS {
+					return tlsConn, nil
+				}
+				tlsConn.Close()
+				fallback.Store(true)
+				return nil, errFallback
+			},
+		},
+		httpTransport: &http.Transport{
+			DialTLSContext: func(ctx context.Context, _, _ string) (net.Conn, error) {
+				return dialer.DialTLSContext(ctx, serverAddr)
+			},
+		},
+		fallback: &fallback,
+	}
+}
+
+func (h *HTTPSTransportWrapper) RoundTrip(request *http.Request) (*http.Response, error) {
+	if h.fallback.Load() {
+		return h.httpTransport.RoundTrip(request)
+	} else {
+		response, err := h.http2Transport.RoundTrip(request)
+		if err != nil {
+			if errors.Is(err, errFallback) {
+				return h.httpTransport.RoundTrip(request)
+			}
+			return nil, err
+		}
+		return response, nil
+	}
+}
+
+func (h *HTTPSTransportWrapper) CloseIdleConnections() {
+	h.http2Transport.CloseIdleConnections()
+	h.httpTransport.CloseIdleConnections()
+}
+
+func (h *HTTPSTransportWrapper) Clone() *HTTPSTransportWrapper {
+	return &HTTPSTransportWrapper{
+		httpTransport: h.httpTransport,
+		http2Transport: &http2.Transport{
+			DialTLSContext: h.http2Transport.DialTLSContext,
+		},
+		fallback: h.fallback,
+	}
+}

dns/transport/local/local_darwin.go

@@ -4,6 +4,8 @@ package local
 
 import (
 	"context"
+	"errors"
+	"net"
 
 	"github.com/sagernet/sing-box/adapter"
 	C "github.com/sagernet/sing-box/constant"
@@ -12,6 +14,7 @@ import (
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
 	"github.com/sagernet/sing/common"
+	E "github.com/sagernet/sing/common/exceptions"
 	"github.com/sagernet/sing/common/logger"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
@@ -32,8 +35,10 @@ type Transport struct {
 	logger        logger.ContextLogger
 	hosts         *hosts.File
 	dialer        N.Dialer
+	preferGo      bool
 	fallback      bool
 	dhcpTransport dhcpTransport
+	resolver      net.Resolver
 }
 
 type dhcpTransport interface {
@@ -47,12 +52,14 @@ func NewTransport(ctx context.Context, logger log.ContextLogger, tag string, opt
 	if err != nil {
 		return nil, err
 	}
+	transportAdapter := dns.NewTransportAdapterWithLocalOptions(C.DNSTypeLocal, tag, options)
 	return &Transport{
-		TransportAdapter: dns.NewTransportAdapterWithLocalOptions(C.DNSTypeLocal, tag, options),
+		TransportAdapter: transportAdapter,
 		ctx:              ctx,
 		logger:           logger,
 		hosts:            hosts.NewFile(hosts.DefaultPath),
 		dialer:           transportDialer,
+		preferGo:         options.PreferGo,
 	}, nil
 }
 
@@ -90,3 +97,44 @@ func (t *Transport) Reset() {
 		t.dhcpTransport.Reset()
 	}
 }
+
+func (t *Transport) Exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg, error) {
+	question := message.Question[0]
+	if question.Qtype == mDNS.TypeA || question.Qtype == mDNS.TypeAAAA {
+		addresses := t.hosts.Lookup(dns.FqdnToDomain(question.Name))
+		if len(addresses) > 0 {
+			return dns.FixedResponse(message.Id, question, addresses, C.DefaultDNSTTL), nil
+		}
+	}
+	if !t.fallback {
+		return t.exchange(ctx, message, question.Name)
+	}
+	if t.dhcpTransport != nil {
+		dhcpTransports := t.dhcpTransport.Fetch()
+		if len(dhcpTransports) > 0 {
+			return t.dhcpTransport.Exchange0(ctx, message, dhcpTransports)
+		}
+	}
+	if t.preferGo {
+		// Assuming the user knows what they are doing, we still execute the query which will fail.
+		return t.exchange(ctx, message, question.Name)
+	}
+	if question.Qtype == mDNS.TypeA || question.Qtype == mDNS.TypeAAAA {
+		var network string
+		if question.Qtype == mDNS.TypeA {
+			network = "ip4"
+		} else {
+			network = "ip6"
+		}
+		addresses, err := t.resolver.LookupNetIP(ctx, network, question.Name)
+		if err != nil {
+			var dnsError *net.DNSError
+			if errors.As(err, &dnsError) && dnsError.IsNotFound {
+				return nil, dns.RcodeRefused
+			}
+			return nil, err
+		}
+		return dns.FixedResponse(message.Id, question, addresses, C.DefaultDNSTTL), nil
+	}
+	return nil, E.New("only A and AAAA queries are supported on Apple platforms when using TUN and DHCP unavailable.")
+}

dns/transport/local/local_darwin_cgo.go

@@ -1,249 +0,0 @@
-//go:build darwin
-
-package local
-
-/*
-#include <stdlib.h>
-#include <dns.h>
-#include <resolv.h>
-
-static void *cgo_dns_open_super() {
-	return (void *)dns_open(NULL);
-}
-
-static void cgo_dns_close(void *opaque) {
-	if (opaque != NULL) dns_free((dns_handle_t)opaque);
-}
-
-static int cgo_dns_search(void *opaque, const char *name, int class, int type,
-	unsigned char *answer, int anslen) {
-	dns_handle_t handle = (dns_handle_t)opaque;
-	struct sockaddr_storage from;
-	uint32_t fromlen = sizeof(from);
-	return dns_search(handle, name, class, type, (char *)answer, anslen, (struct sockaddr *)&from, &fromlen);
-}
-
-static void *cgo_res_init() {
-	res_state state = calloc(1, sizeof(struct __res_state));
-	if (state == NULL) return NULL;
-	if (res_ninit(state) != 0) {
-		free(state);
-		return NULL;
-	}
-	return state;
-}
-
-static void cgo_res_destroy(void *opaque) {
-	res_state state = (res_state)opaque;
-	res_ndestroy(state);
-	free(state);
-}
-
-static int cgo_res_nsearch(void *opaque, const char *dname, int class, int type,
-	unsigned char *answer, int anslen,
-	int timeout_seconds,
-	int *out_h_errno) {
-	res_state state = (res_state)opaque;
-	state->retrans = timeout_seconds;
-	state->retry = 1;
-	int n = res_nsearch(state, dname, class, type, answer, anslen);
-	if (n < 0) {
-		*out_h_errno = state->res_h_errno;
-	}
-	return n;
-}
-*/
-import "C"
-
-import (
-	"context"
-	"errors"
-	"time"
-	"unsafe"
-
-	boxC "github.com/sagernet/sing-box/constant"
-	"github.com/sagernet/sing-box/dns"
-	E "github.com/sagernet/sing/common/exceptions"
-
-	mDNS "github.com/miekg/dns"
-)
-
-const (
-	darwinResolverHostNotFound = 1
-	darwinResolverTryAgain     = 2
-	darwinResolverNoRecovery   = 3
-	darwinResolverNoData       = 4
-
-	darwinResolverMaxPacketSize = 65535
-)
-
-var errDarwinNeedLargerBuffer = errors.New("darwin resolver response truncated")
-
-func darwinLookupSystemDNS(name string, class, qtype, timeoutSeconds int) (*mDNS.Msg, error) {
-	response, err := darwinSearchWithSystemRouting(name, class, qtype)
-	if err == nil {
-		return response, nil
-	}
-	fallbackResponse, fallbackErr := darwinSearchWithResolv(name, class, qtype, timeoutSeconds)
-	if fallbackErr == nil || fallbackResponse != nil {
-		return fallbackResponse, fallbackErr
-	}
-	return nil, E.Errors(
-		E.Cause(err, "dns_search"),
-		E.Cause(fallbackErr, "res_nsearch"),
-	)
-}
-
-func darwinSearchWithSystemRouting(name string, class, qtype int) (*mDNS.Msg, error) {
-	handle := C.cgo_dns_open_super()
-	if handle == nil {
-		return nil, E.New("dns_open failed")
-	}
-	defer C.cgo_dns_close(handle)
-
-	cName := C.CString(name)
-	defer C.free(unsafe.Pointer(cName))
-
-	bufSize := 1232
-	for {
-		answer := make([]byte, bufSize)
-		n := C.cgo_dns_search(handle, cName, C.int(class), C.int(qtype),
-			(*C.uchar)(unsafe.Pointer(&answer[0])), C.int(len(answer)))
-		if n <= 0 {
-			return nil, E.New("dns_search failed for ", name)
-		}
-		if int(n) > bufSize {
-			bufSize = int(n)
-			continue
-		}
-		return unpackDarwinResolverMessage(answer[:int(n)], "dns_search")
-	}
-}
-
-func darwinSearchWithResolv(name string, class, qtype int, timeoutSeconds int) (*mDNS.Msg, error) {
-	state := C.cgo_res_init()
-	if state == nil {
-		return nil, E.New("res_ninit failed")
-	}
-	defer C.cgo_res_destroy(state)
-
-	cName := C.CString(name)
-	defer C.free(unsafe.Pointer(cName))
-
-	bufSize := 1232
-	for {
-		answer := make([]byte, bufSize)
-		var hErrno C.int
-		n := C.cgo_res_nsearch(state, cName, C.int(class), C.int(qtype),
-			(*C.uchar)(unsafe.Pointer(&answer[0])), C.int(len(answer)),
-			C.int(timeoutSeconds),
-			&hErrno)
-		if n >= 0 {
-			if int(n) > bufSize {
-				bufSize = int(n)
-				continue
-			}
-			return unpackDarwinResolverMessage(answer[:int(n)], "res_nsearch")
-		}
-		response, err := handleDarwinResolvFailure(name, answer, int(hErrno))
-		if err == nil {
-			return response, nil
-		}
-		if errors.Is(err, errDarwinNeedLargerBuffer) && bufSize < darwinResolverMaxPacketSize {
-			bufSize *= 2
-			if bufSize > darwinResolverMaxPacketSize {
-				bufSize = darwinResolverMaxPacketSize
-			}
-			continue
-		}
-		return nil, err
-	}
-}
-
-func unpackDarwinResolverMessage(packet []byte, source string) (*mDNS.Msg, error) {
-	var response mDNS.Msg
-	err := response.Unpack(packet)
-	if err != nil {
-		return nil, E.Cause(err, "unpack ", source, " response")
-	}
-	return &response, nil
-}
-
-func handleDarwinResolvFailure(name string, answer []byte, hErrno int) (*mDNS.Msg, error) {
-	response, err := unpackDarwinResolverMessage(answer, "res_nsearch failure")
-	if err == nil && response.Response {
-		if response.Truncated && len(answer) < darwinResolverMaxPacketSize {
-			return nil, errDarwinNeedLargerBuffer
-		}
-		return response, nil
-	}
-	return nil, darwinResolverHErrno(name, hErrno)
-}
-
-func darwinResolverHErrno(name string, hErrno int) error {
-	switch hErrno {
-	case darwinResolverHostNotFound:
-		return dns.RcodeNameError
-	case darwinResolverTryAgain:
-		return dns.RcodeServerFailure
-	case darwinResolverNoRecovery:
-		return dns.RcodeServerFailure
-	case darwinResolverNoData:
-		return dns.RcodeSuccess
-	default:
-		return E.New("res_nsearch: unknown error ", hErrno, " for ", name)
-	}
-}
-
-func (t *Transport) Exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg, error) {
-	question := message.Question[0]
-	if question.Qtype == mDNS.TypeA || question.Qtype == mDNS.TypeAAAA {
-		addresses := t.hosts.Lookup(dns.FqdnToDomain(question.Name))
-		if len(addresses) > 0 {
-			return dns.FixedResponse(message.Id, question, addresses, boxC.DefaultDNSTTL), nil
-		}
-	}
-	if t.fallback && t.dhcpTransport != nil {
-		dhcpServers := t.dhcpTransport.Fetch()
-		if len(dhcpServers) > 0 {
-			return t.dhcpTransport.Exchange0(ctx, message, dhcpServers)
-		}
-	}
-	name := question.Name
-	timeoutSeconds := int(boxC.DNSTimeout / time.Second)
-	if deadline, hasDeadline := ctx.Deadline(); hasDeadline {
-		remaining := time.Until(deadline)
-		if remaining <= 0 {
-			return nil, context.DeadlineExceeded
-		}
-		seconds := int(remaining.Seconds())
-		if seconds < 1 {
-			seconds = 1
-		}
-		timeoutSeconds = seconds
-	}
-	type resolvResult struct {
-		response *mDNS.Msg
-		err      error
-	}
-	resultCh := make(chan resolvResult, 1)
-	go func() {
-		response, err := darwinLookupSystemDNS(name, int(question.Qclass), int(question.Qtype), timeoutSeconds)
-		resultCh <- resolvResult{response, err}
-	}()
-	var result resolvResult
-	select {
-	case <-ctx.Done():
-		return nil, ctx.Err()
-	case result = <-resultCh:
-	}
-	if result.err != nil {
-		var rcodeError dns.RcodeError
-		if errors.As(result.err, &rcodeError) {
-			return dns.FixedResponseStatus(message, int(rcodeError)), nil
-		}
-		return nil, result.err
-	}
-	result.response.Id = message.Id
-	return result.response, nil
-}

dns/transport/local/local_shared.go

@@ -1,5 +1,3 @@
-//go:build !darwin
-
 package local
 
 import (

dns/transport/quic/http3.go

@@ -9,7 +9,6 @@ import (
 	"net/url"
 	"strconv"
 	"sync"
-	"time"
 
 	"github.com/sagernet/quic-go"
 	"github.com/sagernet/quic-go/http3"
@@ -41,23 +40,18 @@ func RegisterHTTP3Transport(registry *dns.TransportRegistry) {
 
 type HTTP3Transport struct {
 	dns.TransportAdapter
-	logger           logger.ContextLogger
+	logger          logger.ContextLogger
-	dialer           N.Dialer
+	dialer          N.Dialer
-	destination      *url.URL
+	destination     *url.URL
-	headers          http.Header
+	headers         http.Header
-	handshakeTimeout time.Duration
+	serverAddr      M.Socksaddr
-	serverAddr       M.Socksaddr
+	tlsConfig       *tls.STDConfig
-	tlsConfig        *tls.STDConfig
+	transportAccess sync.Mutex
-	transportAccess  sync.Mutex
+	transport       *http3.Transport
-	transport        *http3.Transport
 }
 
 func NewHTTP3(ctx context.Context, logger log.ContextLogger, tag string, options option.RemoteHTTPSDNSServerOptions) (adapter.DNSTransport, error) {
-	remoteOptions := option.RemoteDNSServerOptions{
+	transportDialer, err := dns.NewRemoteDialer(ctx, options.RemoteDNSServerOptions)
-		DNSServerAddressOptions: options.DNSServerAddressOptions,
-	}
-	remoteOptions.DialerOptions = options.DialerOptions
-	transportDialer, err := dns.NewRemoteDialer(ctx, remoteOptions)
 	if err != nil {
 		return nil, err
 	}
@@ -67,7 +61,6 @@ func NewHTTP3(ctx context.Context, logger log.ContextLogger, tag string, options
 	if err != nil {
 		return nil, err
 	}
-	handshakeTimeout := tlsConfig.HandshakeTimeout()
 	stdConfig, err := tlsConfig.STDConfig()
 	if err != nil {
 		return nil, err
@@ -109,12 +102,11 @@ func NewHTTP3(ctx context.Context, logger log.ContextLogger, tag string, options
 		return nil, E.New("invalid server address: ", serverAddr)
 	}
 	t := &HTTP3Transport{
-		TransportAdapter: dns.NewTransportAdapterWithRemoteOptions(C.DNSTypeHTTP3, tag, remoteOptions),
+		TransportAdapter: dns.NewTransportAdapterWithRemoteOptions(C.DNSTypeHTTP3, tag, options.RemoteDNSServerOptions),
 		logger:           logger,
 		dialer:           transportDialer,
 		destination:      &destinationURL,
 		headers:          headers,
-		handshakeTimeout: handshakeTimeout,
 		serverAddr:       serverAddr,
 		tlsConfig:        stdConfig,
 	}
@@ -123,17 +115,8 @@ func NewHTTP3(ctx context.Context, logger log.ContextLogger, tag string, options
 }
 
 func (t *HTTP3Transport) newTransport() *http3.Transport {
-	quicConfig := &quic.Config{}
-	if t.handshakeTimeout > 0 {
-		quicConfig.HandshakeIdleTimeout = t.handshakeTimeout
-	}
 	return &http3.Transport{
-		QUICConfig: quicConfig,
 		Dial: func(ctx context.Context, addr string, tlsCfg *tls.STDConfig, cfg *quic.Config) (*quic.Conn, error) {
-			if t.handshakeTimeout > 0 && cfg.HandshakeIdleTimeout == 0 {
-				cfg = cfg.Clone()
-				cfg.HandshakeIdleTimeout = t.handshakeTimeout
-			}
 			conn, dialErr := t.dialer.DialContext(ctx, N.NetworkUDP, t.serverAddr)
 			if dialErr != nil {
 				return nil, dialErr

dns/transport_adapter.go

@@ -1,13 +1,21 @@
 package dns
 
 import (
+	"net/netip"
+
+	"github.com/sagernet/sing-box/adapter"
+	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/option"
 )
 
+var _ adapter.LegacyDNSTransport = (*TransportAdapter)(nil)
+
 type TransportAdapter struct {
 	transportType string
 	transportTag  string
 	dependencies  []string
+	strategy      C.DomainStrategy
+	clientSubnet  netip.Prefix
 }
 
 func NewTransportAdapter(transportType string, transportTag string, dependencies []string) TransportAdapter {
@@ -27,6 +35,8 @@ func NewTransportAdapterWithLocalOptions(transportType string, transportTag stri
 		transportType: transportType,
 		transportTag:  transportTag,
 		dependencies:  dependencies,
+		strategy:      C.DomainStrategy(localOptions.LegacyStrategy),
+		clientSubnet:  localOptions.LegacyClientSubnet,
 	}
 }
 
@@ -35,10 +45,15 @@ func NewTransportAdapterWithRemoteOptions(transportType string, transportTag str
 	if remoteOptions.DomainResolver != nil && remoteOptions.DomainResolver.Server != "" {
 		dependencies = append(dependencies, remoteOptions.DomainResolver.Server)
 	}
+	if remoteOptions.LegacyAddressResolver != "" {
+		dependencies = append(dependencies, remoteOptions.LegacyAddressResolver)
+	}
 	return TransportAdapter{
 		transportType: transportType,
 		transportTag:  transportTag,
 		dependencies:  dependencies,
+		strategy:      C.DomainStrategy(remoteOptions.LegacyStrategy),
+		clientSubnet:  remoteOptions.LegacyClientSubnet,
 	}
 }
 
@@ -53,3 +68,11 @@ func (a *TransportAdapter) Tag() string {
 func (a *TransportAdapter) Dependencies() []string {
 	return a.dependencies
 }
+
+func (a *TransportAdapter) LegacyStrategy() C.DomainStrategy {
+	return a.strategy
+}
+
+func (a *TransportAdapter) LegacyClientSubnet() netip.Prefix {
+	return a.clientSubnet
+}

dns/transport_dialer.go

@@ -2,25 +2,104 @@ package dns
 
 import (
 	"context"
+	"net"
+	"time"
 
+	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-box/common/dialer"
+	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/option"
+	E "github.com/sagernet/sing/common/exceptions"
+	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
+	"github.com/sagernet/sing/service"
 )
 
 func NewLocalDialer(ctx context.Context, options option.LocalDNSServerOptions) (N.Dialer, error) {
-	return dialer.NewWithOptions(dialer.Options{
+	if options.LegacyDefaultDialer {
-		Context:        ctx,
+		return dialer.NewDefaultOutbound(ctx), nil
-		Options:        options.DialerOptions,
+	} else {
-		DirectResolver: true,
+		return dialer.NewWithOptions(dialer.Options{
-	})
+			Context:         ctx,
+			Options:         options.DialerOptions,
+			DirectResolver:  true,
+			LegacyDNSDialer: options.Legacy,
+		})
+	}
 }
 
 func NewRemoteDialer(ctx context.Context, options option.RemoteDNSServerOptions) (N.Dialer, error) {
-	return dialer.NewWithOptions(dialer.Options{
+	if options.LegacyDefaultDialer {
-		Context:        ctx,
+		transportDialer := dialer.NewDefaultOutbound(ctx)
-		Options:        options.DialerOptions,
+		if options.LegacyAddressResolver != "" {
-		RemoteIsDomain: options.ServerIsDomain(),
+			transport := service.FromContext[adapter.DNSTransportManager](ctx)
-		DirectResolver: true,
+			resolverTransport, loaded := transport.Transport(options.LegacyAddressResolver)
-	})
+			if !loaded {
+				return nil, E.New("address resolver not found: ", options.LegacyAddressResolver)
+			}
+			transportDialer = newTransportDialer(transportDialer, service.FromContext[adapter.DNSRouter](ctx), resolverTransport, C.DomainStrategy(options.LegacyAddressStrategy), time.Duration(options.LegacyAddressFallbackDelay))
+		} else if options.ServerIsDomain() {
+			return nil, E.New("missing address resolver for server: ", options.Server)
+		}
+		return transportDialer, nil
+	} else {
+		return dialer.NewWithOptions(dialer.Options{
+			Context:         ctx,
+			Options:         options.DialerOptions,
+			RemoteIsDomain:  options.ServerIsDomain(),
+			DirectResolver:  true,
+			LegacyDNSDialer: options.Legacy,
+		})
+	}
+}
+
+type legacyTransportDialer struct {
+	dialer        N.Dialer
+	dnsRouter     adapter.DNSRouter
+	transport     adapter.DNSTransport
+	strategy      C.DomainStrategy
+	fallbackDelay time.Duration
+}
+
+func newTransportDialer(dialer N.Dialer, dnsRouter adapter.DNSRouter, transport adapter.DNSTransport, strategy C.DomainStrategy, fallbackDelay time.Duration) *legacyTransportDialer {
+	return &legacyTransportDialer{
+		dialer,
+		dnsRouter,
+		transport,
+		strategy,
+		fallbackDelay,
+	}
+}
+
+func (d *legacyTransportDialer) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
+	if destination.IsIP() {
+		return d.dialer.DialContext(ctx, network, destination)
+	}
+	addresses, err := d.dnsRouter.Lookup(ctx, destination.Fqdn, adapter.DNSQueryOptions{
+		Transport: d.transport,
+		Strategy:  d.strategy,
+	})
+	if err != nil {
+		return nil, err
+	}
+	return N.DialParallel(ctx, d.dialer, network, destination, addresses, d.strategy == C.DomainStrategyPreferIPv6, d.fallbackDelay)
+}
+
+func (d *legacyTransportDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
+	if destination.IsIP() {
+		return d.dialer.ListenPacket(ctx, destination)
+	}
+	addresses, err := d.dnsRouter.Lookup(ctx, destination.Fqdn, adapter.DNSQueryOptions{
+		Transport: d.transport,
+		Strategy:  d.strategy,
+	})
+	if err != nil {
+		return nil, err
+	}
+	conn, _, err := N.ListenSerial(ctx, d.dialer, destination, addresses)
+	return conn, err
+}
+
+func (d *legacyTransportDialer) Upstream() any {
+	return d.dialer
 }

docs/changelog.md

@@ -2,110 +2,11 @@
 icon: material/alert-decagram
 ---
 
-#### 1.14.0-alpha.11
+#### 1.14.0-alpha.5
-
-* Add optimistic DNS cache **1**
-* Update NaiveProxy to 147.0.7727.49
-* Fixes and improvements
-
-**1**:
-
-Optimistic DNS cache returns an expired cached response immediately while
-refreshing it in the background, reducing tail latency for repeated
-queries. Enabled via [`optimistic`](/configuration/dns/#optimistic)
-in DNS options, and can be persisted across restarts with the new
-[`store_dns`](/configuration/experimental/cache-file/#store_dns) cache
-file option. A per-query
-[`disable_optimistic_cache`](/configuration/dns/rule_action/#disable_optimistic_cache)
-field is also available on DNS rule actions and the `resolve` route rule
-action.
-
-This deprecates the `independent_cache` DNS option (the DNS cache now
-always keys by transport) and the `store_rdrc` cache file option
-(replaced by `store_dns`); both will be removed in sing-box 1.16.0.
-See [Migration](/migration/#migrate-independent-dns-cache).
-
-#### 1.14.0-alpha.10
-
-* Add `evaluate` DNS rule action and Response Match Fields **1**
-* `ip_version` and `query_type` now also take effect on internal DNS lookups **2**
-* Add `package_name_regex` route, DNS and headless rule item **3**
-* Add cloudflared inbound **4**
-* Fixes and improvements
-
-**1**:
-
-Response Match Fields
-([`response_rcode`](/configuration/dns/rule/#response_rcode),
-[`response_answer`](/configuration/dns/rule/#response_answer),
-[`response_ns`](/configuration/dns/rule/#response_ns),
-and [`response_extra`](/configuration/dns/rule/#response_extra))
-match the evaluated DNS response. They are gated by the new
-[`match_response`](/configuration/dns/rule/#match_response) field and
-populated by a preceding
-[`evaluate`](/configuration/dns/rule_action/#evaluate) DNS rule action;
-the evaluated response can also be returned directly by a
-[`respond`](/configuration/dns/rule_action/#respond) action.
-
-This deprecates the Legacy Address Filter Fields (`ip_cidr`,
-`ip_is_private` without `match_response`) in DNS rules, the Legacy
-`strategy` DNS rule action option, and the Legacy
-`rule_set_ip_cidr_accept_empty` DNS rule item; all three will be removed
-in sing-box 1.16.0.
-See [Migration](/migration/#migrate-address-filter-fields-to-response-matching).
-
-**2**:
-
-`ip_version` and `query_type` in DNS rules, together with `query_type` in
-referenced rule-sets, now take effect on every DNS rule evaluation,
-including matches from internal domain resolutions that do not target a
-specific DNS server (for example a `resolve` route rule action without
-`server` set). In earlier versions they were silently ignored in that
-path. Combining these fields with any of the legacy DNS fields deprecated
-in **1** in the same DNS configuration is no longer supported and is
-rejected at startup.
-See [Migration](/migration/#ip_version-and-query_type-behavior-changes-in-dns-rules).
-
-**3**:
-
-See [Route Rule](/configuration/route/rule/#package_name_regex),
-[DNS Rule](/configuration/dns/rule/#package_name_regex) and
-[Headless Rule](/configuration/rule-set/headless-rule/#package_name_regex).
-
-**4**:
-
-See [Cloudflared](/configuration/inbound/cloudflared/).
-
-#### 1.13.7
-
-* Fixes and improvement
-
-#### 1.13.6
 
 * Fixes and improvements
 
-#### 1.14.0-alpha.8
+#### 1.13.4-beta.2
-
-* Add BBR profile and hop interval randomization for Hysteria2 **1**
-* Fixes and improvements
-
-**1**:
-
-See [Hysteria2 Inbound](/configuration/inbound/hysteria2/#bbr_profile) and [Hysteria2 Outbound](/configuration/outbound/hysteria2/#bbr_profile).
-
-#### 1.14.0-alpha.8
-
-* Fixes and improvements
-
-#### 1.13.5
-
-* Fixes and improvements
-
-#### 1.14.0-alpha.7
-
-* Fixes and improvements
-
-#### 1.13.4
 
 * Fixes and improvements
 
@@ -826,7 +727,7 @@ DNS servers are refactored for better performance and scalability.
 
 See [DNS server](/configuration/dns/server/).
 
-For migration, see [Migrate to new DNS server formats](/migration/#migrate-to-new-dns-server-formats).
+For migration, see [Migrate to new DNS server formats](/migration/#migrate-to-new-dns-servers).
 
 Compatibility for old formats will be removed in sing-box 1.14.0.
 
@@ -1296,7 +1197,7 @@ DNS servers are refactored for better performance and scalability.
 
 See [DNS server](/configuration/dns/server/).
 
-For migration, see [Migrate to new DNS server formats](/migration/#migrate-to-new-dns-server-formats).
+For migration, see [Migrate to new DNS server formats](/migration/#migrate-to-new-dns-servers).
 
 Compatibility for old formats will be removed in sing-box 1.14.0.
 
@@ -2132,7 +2033,7 @@ See [Migration](/migration/#process_path-format-update-on-windows).
 The new DNS feature allows you to more precisely bypass Chinese websites via **DNS leaks**. Do not use plain local DNS
 if using this method.
 
-See [Legacy Address Filter Fields](/configuration/dns/rule#legacy-address-filter-fields).
+See [Address Filter Fields](/configuration/dns/rule#address-filter-fields).
 
 [Client example](/manual/proxy/client#traffic-bypass-usage-for-chinese-users) updated.
 
@@ -2146,7 +2047,7 @@ the [Client example](/manual/proxy/client#traffic-bypass-usage-for-chinese-users
 **5**:
 
 The new feature allows you to cache the check results of
-[Legacy Address Filter Fields](/configuration/dns/rule/#legacy-address-filter-fields) until expiration.
+[Address filter DNS rule items](/configuration/dns/rule/#address-filter-fields) until expiration.
 
 **6**:
 
@@ -2327,7 +2228,7 @@ See [TUN](/configuration/inbound/tun) inbound.
 **1**:
 
 The new feature allows you to cache the check results of
-[Legacy Address Filter Fields](/configuration/dns/rule/#legacy-address-filter-fields) until expiration.
+[Address filter DNS rule items](/configuration/dns/rule/#address-filter-fields) until expiration.
 
 #### 1.9.0-alpha.7
 
@@ -2374,7 +2275,7 @@ See [Migration](/migration/#process_path-format-update-on-windows).
 The new DNS feature allows you to more precisely bypass Chinese websites via **DNS leaks**. Do not use plain local DNS
 if using this method.
 
-See [Legacy Address Filter Fields](/configuration/dns/rule#legacy-address-filter-fields).
+See [Address Filter Fields](/configuration/dns/rule#address-filter-fields).
 
 [Client example](/manual/proxy/client#traffic-bypass-usage-for-chinese-users) updated.
 

docs/clients/android/features.md

@@ -42,7 +42,6 @@ SFA provides an unprivileged TUN implementation through Android VpnService.
 | `process_path`        | :material-close: | No permission                     |
 | `process_path_regex`  | :material-close: | No permission                     |
 | `package_name`        | :material-check: | /                                 |
-| `package_name_regex`  | :material-check: | /                                 |
 | `user`                | :material-close: | Use `package_name` instead        |
 | `user_id`             | :material-close: | Use `package_name` instead        |
 | `wifi_ssid`           | :material-check: | Fine location permission required |

docs/clients/apple/features.md

@@ -44,7 +44,6 @@ SFI/SFM/SFT provides an unprivileged TUN implementation through NetworkExtension
 | `process_path`        | :material-close: | No permission         |
 | `process_path_regex`  | :material-close: | No permission         |
 | `package_name`        | :material-close: | /                     |
-| `package_name_regex`  | :material-close: | /                     |
 | `user`                | :material-close: | No permission         |
 | `user_id`             | :material-close: | No permission         |
 | `wifi_ssid`           | :material-alert: | Only supported on iOS |

docs/configuration/dns/fakeip.md

@@ -1,10 +1,10 @@
 ---
-icon: material/note-remove
+icon: material/delete-clock
 ---
 
-!!! failure "Removed in sing-box 1.14.0"
+!!! failure "Deprecated in sing-box 1.12.0"
 
-    Legacy fake-ip configuration is deprecated in sing-box 1.12.0 and removed in sing-box 1.14.0, check [Migration](/migration/#migrate-to-new-dns-server-formats).
+    Legacy fake-ip configuration is deprecated and will be removed in sing-box 1.14.0, check [Migration](/migration/#migrate-to-new-dns-servers).
 
 ### Structure
 
@@ -26,6 +26,6 @@ Enable FakeIP service.
 
 IPv4 address range for FakeIP.
 
-#### inet6_range
+#### inet6_address
 
 IPv6 address range for FakeIP.

docs/configuration/dns/fakeip.zh.md

@@ -1,10 +1,10 @@
 ---
-icon: material/note-remove
+icon: material/delete-clock
 ---
 
-!!! failure "已在 sing-box 1.14.0 移除"
+!!! failure "已在 sing-box 1.12.0 废弃"
 
-    旧的 fake-ip 配置已在 sing-box 1.12.0 废弃且已在 sing-box 1.14.0 中被移除，参阅 [迁移指南](/zh/migration/#迁移到新的-dns-服务器格式)。
+    旧的 fake-ip 配置已废弃且将在 sing-box 1.14.0 中被移除，参阅 [迁移指南](/zh/migration/#迁移到新的-dns-服务器格式)。
 
 ### 结构
 

docs/configuration/dns/index.md

@@ -2,11 +2,6 @@
 icon: material/alert-decagram
 ---
 
-!!! quote "Changes in sing-box 1.14.0"
-
-    :material-delete-clock: [independent_cache](#independent_cache)  
-    :material-plus: [optimistic](#optimistic)
-
 !!! quote "Changes in sing-box 1.12.0"
 
     :material-decagram: [servers](#servers)
@@ -30,7 +25,6 @@ icon: material/alert-decagram
     "disable_expire": false,
     "independent_cache": false,
     "cache_capacity": 0,
-    "optimistic": false, // or {}
     "reverse_mapping": false,
     "client_subnet": "",
     "fakeip": {}
@@ -45,7 +39,7 @@ icon: material/alert-decagram
 |----------|---------------------------------|
 | `server` | List of [DNS Server](./server/) |
 | `rules`  | List of [DNS Rule](./rule/)     |
-| `fakeip` | :material-note-remove: [FakeIP](./fakeip/) |
+| `fakeip` | [FakeIP](./fakeip/)             |
 
 #### final
 
@@ -63,20 +57,12 @@ One of `prefer_ipv4` `prefer_ipv6` `ipv4_only` `ipv6_only`.
 
 Disable dns cache.
 
-Conflict with `optimistic`.
-
 #### disable_expire
 
 Disable dns cache expire.
 
-Conflict with `optimistic`.
-
 #### independent_cache
 
-!!! failure "Deprecated in sing-box 1.14.0"
-
-    `independent_cache` is deprecated and will be removed in sing-box 1.14.0, check [Migration](/migration/#migrate-independent-dns-cache).
-
 Make each DNS server's cache independent for special purposes. If enabled, will slightly degrade performance.
 
 #### cache_capacity
@@ -87,34 +73,6 @@ LRU cache capacity.
 
 Value less than 1024 will be ignored.
 
-#### optimistic
-
-!!! question "Since sing-box 1.14.0"
-
-Enable optimistic DNS caching. When a cached DNS entry has expired but is still within the timeout window,
-the stale response is returned immediately while a background refresh is triggered.
-
-Conflict with `disable_cache` and `disable_expire`.
-
-Accepts a boolean or an object. When set to `true`, the default timeout of `3d` is used.
-
-```json
-{
-  "enabled": true,
-  "timeout": "3d"
-}
-```
-
-##### enabled
-
-Enable optimistic DNS caching.
-
-##### timeout
-
-The maximum time an expired cache entry can be served optimistically.
-
-`3d` is used by default.
-
 #### reverse_mapping
 
 Stores a reverse mapping of IP addresses after responding to a DNS query in order to provide domain names when routing.
@@ -130,4 +88,4 @@ Append a `edns0-subnet` OPT extra record with the specified IP prefix to every q
 
 If value is an IP address instead of prefix, `/32` or `/128` will be appended automatically.
 
-Can be overridden by `servers.[].client_subnet` or `rules.[].client_subnet`.
+Can be overrides by `servers.[].client_subnet` or `rules.[].client_subnet`.

docs/configuration/dns/index.zh.md

@@ -2,11 +2,6 @@
 icon: material/alert-decagram
 ---
 
-!!! quote "sing-box 1.14.0 中的更改"
-
-    :material-delete-clock: [independent_cache](#independent_cache)  
-    :material-plus: [optimistic](#optimistic)
-
 !!! quote "sing-box 1.12.0 中的更改"
 
     :material-decagram: [servers](#servers)
@@ -30,7 +25,6 @@ icon: material/alert-decagram
     "disable_expire": false,
     "independent_cache": false,
     "cache_capacity": 0,
-    "optimistic": false, // or {}
     "reverse_mapping": false,
     "client_subnet": "",
     "fakeip": {}
@@ -62,20 +56,12 @@ icon: material/alert-decagram
 
 禁用 DNS 缓存。
 
-与 `optimistic` 冲突。
-
 #### disable_expire
 
 禁用 DNS 缓存过期。
 
-与 `optimistic` 冲突。
-
 #### independent_cache
 
-!!! failure "已在 sing-box 1.14.0 废弃"
-
-    `independent_cache` 已在 sing-box 1.14.0 废弃，且将在 sing-box 1.16.0 中被移除，参阅[迁移指南](/zh/migration/#迁移-independent-dns-cache)。
-
 使每个 DNS 服务器的缓存独立，以满足特殊目的。如果启用，将轻微降低性能。
 
 #### cache_capacity
@@ -86,34 +72,6 @@ LRU 缓存容量。
 
 小于 1024 的值将被忽略。
 
-#### optimistic
-
-!!! question "自 sing-box 1.14.0 起"
-
-启用乐观 DNS 缓存。当缓存的 DNS 条目已过期但仍在超时窗口内时，
-立即返回过期的响应，同时在后台触发刷新。
-
-与 `disable_cache` 和 `disable_expire` 冲突。
-
-接受布尔值或对象。当设置为 `true` 时，使用默认超时 `3d`。
-
-```json
-{
-  "enabled": true,
-  "timeout": "3d"
-}
-```
-
-##### enabled
-
-启用乐观 DNS 缓存。
-
-##### timeout
-
-过期缓存条目可被乐观提供的最长时间。
-
-默认使用 `3d`。
-
 #### reverse_mapping
 
 在响应 DNS 查询后存储 IP 地址的反向映射以为路由目的提供域名。
@@ -130,6 +88,6 @@ LRU 缓存容量。
 
 可以被 `servers.[].client_subnet` 或 `rules.[].client_subnet` 覆盖。
 
-#### fakeip :material-note-remove:
+#### fakeip
 
 [FakeIP](./fakeip/) 设置。

docs/configuration/dns/rule.md

@@ -6,15 +6,6 @@ icon: material/alert-decagram
 
     :material-plus: [source_mac_address](#source_mac_address)  
     :material-plus: [source_hostname](#source_hostname)
-    :material-plus: [match_response](#match_response)  
-    :material-delete-clock: [rule_set_ip_cidr_accept_empty](#rule_set_ip_cidr_accept_empty)  
-    :material-plus: [response_rcode](#response_rcode)  
-    :material-plus: [response_answer](#response_answer)  
-    :material-plus: [response_ns](#response_ns)  
-    :material-plus: [response_extra](#response_extra)  
-    :material-plus: [package_name_regex](#package_name_regex)  
-    :material-alert: [ip_version](#ip_version)  
-    :material-alert: [query_type](#query_type)
 
 !!! quote "Changes in sing-box 1.13.0"
 
@@ -103,6 +94,12 @@ icon: material/alert-decagram
           "192.168.0.1"
         ],
         "source_ip_is_private": false,
+        "ip_cidr": [
+          "10.0.0.0/24",
+          "192.168.0.1"
+        ],
+        "ip_is_private": false,
+        "ip_accept_any": false,
         "source_port": [
           12345
         ],
@@ -132,9 +129,6 @@ icon: material/alert-decagram
         "package_name": [
           "com.termux"
         ],
-        "package_name_regex": [
-          "^com\\.termux.*"
-        ],
         "user": [
           "sekai"
         ],
@@ -177,17 +171,7 @@ icon: material/alert-decagram
           "geosite-cn"
         ],
         "rule_set_ip_cidr_match_source": false,
-        "match_response": false,
+        "rule_set_ip_cidr_accept_empty": false,
-        "ip_cidr": [
-          "10.0.0.0/24",
-          "192.168.0.1"
-        ],
-        "ip_is_private": false,
-        "ip_accept_any": false,
-        "response_rcode": "",
-        "response_answer": [],
-        "response_ns": [],
-        "response_extra": [],
         "invert": false,
         "outbound": [
           "direct"
@@ -197,7 +181,6 @@ icon: material/alert-decagram
 
         // Deprecated
         
-        "rule_set_ip_cidr_accept_empty": false,
         "rule_set_ipcidr_match_source": false,
         "geosite": [
           "cn"
@@ -237,7 +220,7 @@ icon: material/alert-decagram
     (`source_port` || `source_port_range`) &&  
     `other fields`
 
-    Additionally, each branch inside an included rule-set can be considered merged into the outer rule, while different branches keep OR semantics.
+    Additionally, included rule-sets can be considered merged rather than as a single rule sub-item.
 
 #### inbound
 
@@ -245,46 +228,12 @@ Tags of [Inbound](/configuration/inbound/).
 
 #### ip_version
 
-!!! quote "Changes in sing-box 1.14.0"
-
-    This field now also applies when a DNS rule is matched from an internal
-    domain resolution that does not target a specific DNS server, such as a
-    [`resolve`](../../route/rule_action/#resolve) route rule action without a
-    `server` set. In earlier versions, only DNS queries received from a
-    client evaluated this field. See
-    [Migration](/migration/#ip_version-and-query_type-behavior-changes-in-dns-rules)
-    for the full list.
-
-    Setting this field makes the DNS rule incompatible in the same DNS
-    configuration with Legacy Address Filter Fields in DNS rules, the Legacy
-    `strategy` DNS rule action option, and the Legacy
-    `rule_set_ip_cidr_accept_empty` DNS rule item. To combine with
-    address-based filtering, use the [`evaluate`](../rule_action/#evaluate)
-    action and [`match_response`](#match_response).
-
 4 (A DNS query) or 6 (AAAA DNS query).
 
 Not limited if empty.
 
 #### query_type
 
-!!! quote "Changes in sing-box 1.14.0"
-
-    This field now also applies when a DNS rule is matched from an internal
-    domain resolution that does not target a specific DNS server, such as a
-    [`resolve`](../../route/rule_action/#resolve) route rule action without a
-    `server` set. In earlier versions, only DNS queries received from a
-    client evaluated this field. See
-    [Migration](/migration/#ip_version-and-query_type-behavior-changes-in-dns-rules)
-    for the full list.
-
-    Setting this field makes the DNS rule incompatible in the same DNS
-    configuration with Legacy Address Filter Fields in DNS rules, the Legacy
-    `strategy` DNS rule action option, and the Legacy
-    `rule_set_ip_cidr_accept_empty` DNS rule item. To combine with
-    address-based filtering, use the [`evaluate`](../rule_action/#evaluate)
-    action and [`match_response`](#match_response).
-
 DNS query type. Values can be integers or type name strings.
 
 #### network
@@ -387,12 +336,6 @@ Match process path using regular expression.
 
 Match android package name.
 
-#### package_name_regex
-
-!!! question "Since sing-box 1.14.0"
-
-Match android package name using regular expression.
-
 #### user
 
 !!! quote ""
@@ -534,25 +477,6 @@ Make `ip_cidr` rule items in rule-sets match the source IP.
 
 Make `ip_cidr` rule items in rule-sets match the source IP.
 
-#### match_response
-
-!!! question "Since sing-box 1.14.0"
-
-Enable response-based matching. When enabled, this rule matches against the evaluated response
-(set by a preceding [`evaluate`](/configuration/dns/rule_action/#evaluate) action)
-instead of only matching the original query.
-
-The evaluated response can also be returned directly by a later [`respond`](/configuration/dns/rule_action/#respond) action.
-
-Required for Response Match Fields (`response_rcode`, `response_answer`, `response_ns`, `response_extra`).
-Also required for `ip_cidr`, `ip_is_private`, and `ip_accept_any` when used with `evaluate` or Response Match Fields.
-
-#### ip_accept_any
-
-!!! question "Since sing-box 1.12.0"
-
-Match when the DNS query response contains at least one address.
-
 #### invert
 
 Invert match result.
@@ -597,12 +521,7 @@ See [DNS Rule Actions](../rule_action/) for details.
 
     Moved to [DNS Rule Action](../rule_action#route).
 
-### Legacy Address Filter Fields
+### Address Filter Fields
-
-!!! failure "Deprecated in sing-box 1.14.0"
-
-    Legacy Address Filter Fields are deprecated and will be removed in sing-box 1.16.0,
-    check [Migration](/migration/#migrate-address-filter-fields-to-response-matching).
 
 Only takes effect for address requests (A/AAAA/HTTPS). When the query results do not match the address filtering rule items, the current rule will be skipped.
 
@@ -628,61 +547,23 @@ Match GeoIP with query response.
 
 Match IP CIDR with query response.
 
-As a Legacy Address Filter Field, deprecated. Use with `match_response` instead,
-check [Migration](/migration/#migrate-address-filter-fields-to-response-matching).
-
 #### ip_is_private
 
 !!! question "Since sing-box 1.9.0"
 
 Match private IP with query response.
 
-As a Legacy Address Filter Field, deprecated. Use with `match_response` instead,
-check [Migration](/migration/#migrate-address-filter-fields-to-response-matching).
-
 #### rule_set_ip_cidr_accept_empty
 
 !!! question "Since sing-box 1.10.0"
 
-!!! failure "Deprecated in sing-box 1.14.0"
-
-    `rule_set_ip_cidr_accept_empty` is deprecated and will be removed in sing-box 1.16.0,
-    check [Migration](/migration/#migrate-address-filter-fields-to-response-matching).
-
 Make `ip_cidr` rules in rule-sets accept empty query response.
 
-### Response Match Fields
+#### ip_accept_any
 
-!!! question "Since sing-box 1.14.0"
+!!! question "Since sing-box 1.12.0"
 
-Match fields for the evaluated response. Require `match_response` to be set to `true`
+Match any IP with query response.
-and a preceding rule with [`evaluate`](/configuration/dns/rule_action/#evaluate) action to populate the response.
-
-That evaluated response may also be returned directly by a later [`respond`](/configuration/dns/rule_action/#respond) action.
-
-#### response_rcode
-
-Match DNS response code.
-
-Accepted values are the same as in the [predefined action rcode](/configuration/dns/rule_action/#rcode).
-
-#### response_answer
-
-Match DNS answer records.
-
-Record format is the same as in [predefined action answer](/configuration/dns/rule_action/#answer).
-
-#### response_ns
-
-Match DNS name server records.
-
-Record format is the same as in [predefined action ns](/configuration/dns/rule_action/#ns).
-
-#### response_extra
-
-Match DNS extra records.
-
-Record format is the same as in [predefined action extra](/configuration/dns/rule_action/#extra).
 
 ### Logical Fields
 

docs/configuration/dns/rule.zh.md

@@ -6,15 +6,6 @@ icon: material/alert-decagram
 
     :material-plus: [source_mac_address](#source_mac_address)  
     :material-plus: [source_hostname](#source_hostname)
-    :material-plus: [match_response](#match_response)  
-    :material-delete-clock: [rule_set_ip_cidr_accept_empty](#rule_set_ip_cidr_accept_empty)  
-    :material-plus: [response_rcode](#response_rcode)  
-    :material-plus: [response_answer](#response_answer)  
-    :material-plus: [response_ns](#response_ns)  
-    :material-plus: [response_extra](#response_extra)  
-    :material-plus: [package_name_regex](#package_name_regex)  
-    :material-alert: [ip_version](#ip_version)  
-    :material-alert: [query_type](#query_type)
 
 !!! quote "sing-box 1.13.0 中的更改"
 
@@ -103,6 +94,12 @@ icon: material/alert-decagram
           "192.168.0.1"
         ],
         "source_ip_is_private": false,
+        "ip_cidr": [
+          "10.0.0.0/24",
+          "192.168.0.1"
+        ],
+        "ip_is_private": false,
+        "ip_accept_any": false,
         "source_port": [
           12345
         ],
@@ -132,9 +129,6 @@ icon: material/alert-decagram
         "package_name": [
           "com.termux"
         ],
-        "package_name_regex": [
-          "^com\\.termux.*"
-        ],
         "user": [
           "sekai"
         ],
@@ -177,17 +171,7 @@ icon: material/alert-decagram
           "geosite-cn"
         ],
         "rule_set_ip_cidr_match_source": false,
-        "match_response": false,
+        "rule_set_ip_cidr_accept_empty": false,
-        "ip_cidr": [
-          "10.0.0.0/24",
-          "192.168.0.1"
-        ],
-        "ip_is_private": false,
-        "ip_accept_any": false,
-        "response_rcode": "",
-        "response_answer": [],
-        "response_ns": [],
-        "response_extra": [],
         "invert": false,
         "outbound": [
           "direct"
@@ -196,8 +180,6 @@ icon: material/alert-decagram
         "server": "local",
 
         // 已弃用
-
-        "rule_set_ip_cidr_accept_empty": false,
         "rule_set_ipcidr_match_source": false,
         "geosite": [
           "cn"
@@ -237,7 +219,7 @@ icon: material/alert-decagram
     (`source_port` || `source_port_range`) &&  
     `other fields`
 
-    另外，引用规则集中的每个分支都可视为与外层规则合并，不同分支之间仍保持 OR 语义。
+    另外，引用的规则集可视为被合并，而不是作为一个单独的规则子项。
 
 #### inbound
 
@@ -245,38 +227,12 @@ icon: material/alert-decagram
 
 #### ip_version
 
-!!! quote "sing-box 1.14.0 中的更改"
-
-    此字段现在也会在 DNS 规则被未指定具体 DNS 服务器的内部域名解析匹配时生效，
-    例如未设置 `server` 的 [`resolve`](../../route/rule_action/#resolve) 路由规则动作。
-    此前只有来自客户端的 DNS 查询才会评估此字段。完整列表参阅
-    [迁移指南](/zh/migration/#dns-规则中的-ip_version-和-query_type-行为更改)。
-
-    在 DNS 规则中设置此字段后，该 DNS 规则在同一 DNS 配置中不能与
-    旧版地址筛选字段 (DNS 规则)、旧版 DNS 规则动作 `strategy` 选项，
-    或旧版 `rule_set_ip_cidr_accept_empty` DNS 规则项共存。如需与
-    基于地址的筛选组合，请使用 [`evaluate`](../rule_action/#evaluate) 动作和
-    [`match_response`](#match_response)。
-
 4 (A DNS 查询) 或 6 (AAAA DNS 查询)。
 
 默认不限制。
 
 #### query_type
 
-!!! quote "sing-box 1.14.0 中的更改"
-
-    此字段现在也会在 DNS 规则被未指定具体 DNS 服务器的内部域名解析匹配时生效，
-    例如未设置 `server` 的 [`resolve`](../../route/rule_action/#resolve) 路由规则动作。
-    此前只有来自客户端的 DNS 查询才会评估此字段。完整列表参阅
-    [迁移指南](/zh/migration/#dns-规则中的-ip_version-和-query_type-行为更改)。
-
-    在 DNS 规则中设置此字段后，该 DNS 规则在同一 DNS 配置中不能与
-    旧版地址筛选字段 (DNS 规则)、旧版 DNS 规则动作 `strategy` 选项，
-    或旧版 `rule_set_ip_cidr_accept_empty` DNS 规则项共存。如需与
-    基于地址的筛选组合，请使用 [`evaluate`](../rule_action/#evaluate) 动作和
-    [`match_response`](#match_response)。
-
 DNS 查询类型。值可以为整数或者类型名称字符串。
 
 #### network
@@ -379,12 +335,6 @@ DNS 查询类型。值可以为整数或者类型名称字符串。
 
 匹配 Android 应用包名。
 
-#### package_name_regex
-
-!!! question "自 sing-box 1.14.0 起"
-
-使用正则表达式匹配 Android 应用包名。
-
 #### user
 
 !!! quote ""
@@ -526,23 +476,6 @@ Available values: `wifi`, `cellular`, `ethernet` and `other`.
 
 使规则集中的 `ip_cidr` 规则匹配源 IP。
 
-#### match_response
-
-!!! question "自 sing-box 1.14.0 起"
-
-启用响应匹配。启用后，此规则将匹配已评估的响应（由前序 [`evaluate`](/zh/configuration/dns/rule_action/#evaluate) 动作设置），而不仅是匹配原始查询。
-
-该已评估的响应也可以被后续的 [`respond`](/zh/configuration/dns/rule_action/#respond) 动作直接返回。
-
-响应匹配字段（`response_rcode`、`response_answer`、`response_ns`、`response_extra`）需要此选项。
-当与 `evaluate` 或响应匹配字段一起使用时，`ip_cidr`、`ip_is_private` 和 `ip_accept_any` 也需要此选项。
-
-#### ip_accept_any
-
-!!! question "自 sing-box 1.12.0 起"
-
-当 DNS 查询响应包含至少一个地址时匹配。
-
 #### invert
 
 反选匹配结果。
@@ -587,12 +520,7 @@ Available values: `wifi`, `cellular`, `ethernet` and `other`.
 
     已移动到 [DNS 规则动作](../rule_action#route).
 
-### 旧版地址筛选字段
+### 地址筛选字段
-
-!!! failure "已在 sing-box 1.14.0 废弃"
-
-    旧版地址筛选字段已废弃，且将在 sing-box 1.16.0 中被移除，
-    参阅[迁移指南](/zh/migration/#迁移地址筛选字段到响应匹配)。
 
 仅对地址请求 (A/AAAA/HTTPS) 生效。 当查询结果与地址筛选规则项不匹配时，将跳过当前规则。
 
@@ -619,62 +547,24 @@ Available values: `wifi`, `cellular`, `ethernet` and `other`.
 
 与查询响应匹配 IP CIDR。
 
-作为旧版地址筛选字段已废弃。请改为配合 `match_response` 使用，
-参阅[迁移指南](/zh/migration/#迁移地址筛选字段到响应匹配)。
-
 #### ip_is_private
 
 !!! question "自 sing-box 1.9.0 起"
 
 与查询响应匹配非公开 IP。
 
-作为旧版地址筛选字段已废弃。请改为配合 `match_response` 使用，
+#### ip_accept_any
-参阅[迁移指南](/zh/migration/#迁移地址筛选字段到响应匹配)。
+
+!!! question "自 sing-box 1.12.0 起"
+
+匹配任意 IP。
 
 #### rule_set_ip_cidr_accept_empty
 
 !!! question "自 sing-box 1.10.0 起"
 
-!!! failure "已在 sing-box 1.14.0 废弃"
-
-    `rule_set_ip_cidr_accept_empty` 已废弃且将在 sing-box 1.16.0 中被移除，
-    参阅[迁移指南](/zh/migration/#迁移地址筛选字段到响应匹配)。
-
 使规则集中的 `ip_cidr` 规则接受空查询响应。
 
-### 响应匹配字段
-
-!!! question "自 sing-box 1.14.0 起"
-
-已评估的响应的匹配字段。需要将 `match_response` 设为 `true`，
-且需要前序规则使用 [`evaluate`](/zh/configuration/dns/rule_action/#evaluate) 动作来填充响应。
-
-该已评估的响应也可以被后续的 [`respond`](/zh/configuration/dns/rule_action/#respond) 动作直接返回。
-
-#### response_rcode
-
-匹配 DNS 响应码。
-
-接受的值与 [predefined 动作 rcode](/zh/configuration/dns/rule_action/#rcode) 中相同。
-
-#### response_answer
-
-匹配 DNS 应答记录。
-
-记录格式与 [predefined 动作 answer](/zh/configuration/dns/rule_action/#answer) 中相同。
-
-#### response_ns
-
-匹配 DNS 名称服务器记录。
-
-记录格式与 [predefined 动作 ns](/zh/configuration/dns/rule_action/#ns) 中相同。
-
-#### response_extra
-
-匹配 DNS 额外记录。
-
-记录格式与 [predefined 动作 extra](/zh/configuration/dns/rule_action/#extra) 中相同。
-
 ### 逻辑字段
 
 #### type

docs/configuration/dns/rule_action.md

@@ -2,13 +2,6 @@
 icon: material/new-box
 ---
 
-!!! quote "Changes in sing-box 1.14.0"
-
-    :material-delete-clock: [strategy](#strategy)  
-    :material-plus: [evaluate](#evaluate)  
-    :material-plus: [respond](#respond)  
-    :material-plus: [disable_optimistic_cache](#disable_optimistic_cache)
-
 !!! quote "Changes in sing-box 1.12.0"
 
     :material-plus: [strategy](#strategy)  
@@ -24,7 +17,6 @@ icon: material/new-box
   "server": "",
   "strategy": "",
   "disable_cache": false,
-  "disable_optimistic_cache": false,
   "rewrite_ttl": null,
   "client_subnet": null
 }
@@ -42,10 +34,6 @@ Tag of target server.
 
 !!! question "Since sing-box 1.12.0"
 
-!!! failure "Deprecated in sing-box 1.14.0"
-
-    `strategy` is deprecated in sing-box 1.14.0 and will be removed in sing-box 1.16.0.
-
 Set domain strategy for this query.
 
 One of `prefer_ipv4` `prefer_ipv6` `ipv4_only` `ipv6_only`.
@@ -54,12 +42,6 @@ One of `prefer_ipv4` `prefer_ipv6` `ipv4_only` `ipv6_only`.
 
 Disable cache and save cache in this query.
 
-#### disable_optimistic_cache
-
-!!! question "Since sing-box 1.14.0"
-
-Disable optimistic DNS caching in this query.
-
 #### rewrite_ttl
 
 Rewrite TTL in DNS responses.
@@ -70,75 +52,7 @@ Append a `edns0-subnet` OPT extra record with the specified IP prefix to every q
 
 If value is an IP address instead of prefix, `/32` or `/128` will be appended automatically.
 
-Will override `dns.client_subnet`.
+Will overrides `dns.client_subnet`.
-
-### evaluate
-
-!!! question "Since sing-box 1.14.0"
-
-```json
-{
-  "action": "evaluate",
-  "server": "",
-  "disable_cache": false,
-  "disable_optimistic_cache": false,
-  "rewrite_ttl": null,
-  "client_subnet": null
-}
-```
-
-`evaluate` sends a DNS query to the specified server and saves the evaluated response for subsequent rules
-to match against using [`match_response`](/configuration/dns/rule/#match_response) and response fields.
-Unlike `route`, it does **not** terminate rule evaluation.
-
-Only allowed on top-level DNS rules (not inside logical sub-rules).
-Rules that use [`match_response`](/configuration/dns/rule/#match_response) or Response Match Fields
-require a preceding top-level rule with `evaluate` action. A rule's own `evaluate` action
-does not satisfy this requirement, because matching happens before the action runs.
-
-#### server
-
-==Required==
-
-Tag of target server.
-
-#### disable_cache
-
-Disable cache and save cache in this query.
-
-#### disable_optimistic_cache
-
-!!! question "Since sing-box 1.14.0"
-
-Disable optimistic DNS caching in this query.
-
-#### rewrite_ttl
-
-Rewrite TTL in DNS responses.
-
-#### client_subnet
-
-Append a `edns0-subnet` OPT extra record with the specified IP prefix to every query by default.
-
-If value is an IP address instead of prefix, `/32` or `/128` will be appended automatically.
-
-Will override `dns.client_subnet`.
-
-### respond
-
-!!! question "Since sing-box 1.14.0"
-
-```json
-{
-  "action": "respond"
-}
-```
-
-`respond` terminates rule evaluation and returns the evaluated response from a preceding [`evaluate`](/configuration/dns/rule_action/#evaluate) action.
-
-This action does not send a new DNS query and has no extra options.
-
-Only allowed after a preceding top-level `evaluate` rule. If the action is reached without an evaluated response at runtime, the request fails with an error instead of falling through to later rules.
 
 ### route-options
 
@@ -146,7 +60,6 @@ Only allowed after a preceding top-level `evaluate` rule. If the action is reach
 {
   "action": "route-options",
   "disable_cache": false,
-  "disable_optimistic_cache": false,
   "rewrite_ttl": null,
   "client_subnet": null
 }

docs/configuration/dns/rule_action.zh.md

@@ -2,13 +2,6 @@
 icon: material/new-box
 ---
 
-!!! quote "sing-box 1.14.0 中的更改"
-
-    :material-delete-clock: [strategy](#strategy)  
-    :material-plus: [evaluate](#evaluate)  
-    :material-plus: [respond](#respond)  
-    :material-plus: [disable_optimistic_cache](#disable_optimistic_cache)
-
 !!! quote "sing-box 1.12.0 中的更改"
 
     :material-plus: [strategy](#strategy)  
@@ -24,7 +17,6 @@ icon: material/new-box
   "server": "",
   "strategy": "",
   "disable_cache": false,
-  "disable_optimistic_cache": false,
   "rewrite_ttl": null,
   "client_subnet": null
 }
@@ -42,10 +34,6 @@ icon: material/new-box
 
 !!! question "自 sing-box 1.12.0 起"
 
-!!! failure "已在 sing-box 1.14.0 废弃"
-
-    `strategy` 已在 sing-box 1.14.0 废弃，且将在 sing-box 1.16.0 中被移除。
-
 为此查询设置域名策略。
 
 可选项：`prefer_ipv4` `prefer_ipv6` `ipv4_only` `ipv6_only`。
@@ -54,12 +42,6 @@ icon: material/new-box
 
 在此查询中禁用缓存。
 
-#### disable_optimistic_cache
-
-!!! question "自 sing-box 1.14.0 起"
-
-在此查询中禁用乐观 DNS 缓存。
-
 #### rewrite_ttl
 
 重写 DNS 回应中的 TTL。
@@ -72,79 +54,12 @@ icon: material/new-box
 
 将覆盖 `dns.client_subnet`.
 
-### evaluate
-
-!!! question "自 sing-box 1.14.0 起"
-
-```json
-{
-  "action": "evaluate",
-  "server": "",
-  "disable_cache": false,
-  "disable_optimistic_cache": false,
-  "rewrite_ttl": null,
-  "client_subnet": null
-}
-```
-
-`evaluate` 向指定服务器发送 DNS 查询并保存已评估的响应，供后续规则通过 [`match_response`](/zh/configuration/dns/rule/#match_response) 和响应字段进行匹配。与 `route` 不同，它**不会**终止规则评估。
-
-仅允许在顶层 DNS 规则中使用（不可在逻辑子规则内部使用）。
-使用 [`match_response`](/zh/configuration/dns/rule/#match_response) 或响应匹配字段的规则，
-需要位于更早的顶层 `evaluate` 规则之后。规则自身的 `evaluate` 动作不能满足这个条件，
-因为匹配发生在动作执行之前。
-
-#### server
-
-==必填==
-
-目标 DNS 服务器的标签。
-
-#### disable_cache
-
-在此查询中禁用缓存。
-
-#### disable_optimistic_cache
-
-!!! question "自 sing-box 1.14.0 起"
-
-在此查询中禁用乐观 DNS 缓存。
-
-#### rewrite_ttl
-
-重写 DNS 回应中的 TTL。
-
-#### client_subnet
-
-默认情况下，将带有指定 IP 前缀的 `edns0-subnet` OPT 附加记录附加到每个查询。
-
-如果值是 IP 地址而不是前缀，则会自动附加 `/32` 或 `/128`。
-
-将覆盖 `dns.client_subnet`.
-
-### respond
-
-!!! question "自 sing-box 1.14.0 起"
-
-```json
-{
-  "action": "respond"
-}
-```
-
-`respond` 会终止规则评估，并直接返回前序 [`evaluate`](/zh/configuration/dns/rule_action/#evaluate) 动作保存的已评估的响应。
-
-此动作不会发起新的 DNS 查询，也没有额外选项。
-
-只能用于前面已有顶层 `evaluate` 规则的场景。如果运行时命中该动作时没有已评估的响应，则请求会直接返回错误，而不是继续匹配后续规则。
-
 ### route-options
 
 ```json
 {
   "action": "route-options",
   "disable_cache": false,
-  "disable_optimistic_cache": false,
   "rewrite_ttl": null,
   "client_subnet": null
 }
@@ -169,7 +84,7 @@ icon: material/new-box
 - `default`: 返回 REFUSED。
 - `drop`: 丢弃请求。
 
-默认使用 `default`。
+默认使用 `defualt`。
 
 #### no_drop
 

docs/configuration/dns/server/hosts.md

@@ -73,55 +73,24 @@ Example:
 
 === "Use hosts if available"
 
-    === ":material-card-multiple: sing-box 1.14.0"
+    ```json
-
+    {
-        ```json
+      "dns": {
-        {
+        "servers": [
-          "dns": {
+          {
-            "servers": [
+            ...
-              {
+          },
-                ...
+          {
-              },
+            "type": "hosts",
-              {
+            "tag": "hosts"
-                "type": "hosts",
-                "tag": "hosts"
-              }
-            ],
-            "rules": [
-              {
-                "action": "evaluate",
-                "server": "hosts"
-              },
-              {
-                "match_response": true,
-                "ip_accept_any": true,
-                "action": "respond"
-              }
-            ]
           }
-        }
+        ],
-        ```
+        "rules": [
-
+          {
-    === ":material-card-remove: sing-box < 1.14.0"
+            "ip_accept_any": true,
-
+            "server": "hosts"
-        ```json
-        {
-          "dns": {
-            "servers": [
-              {
-                ...
-              },
-              {
-                "type": "hosts",
-                "tag": "hosts"
-              }
-            ],
-            "rules": [
-              {
-                "ip_accept_any": true,
-                "server": "hosts"
-              }
-            ]
           }
-        }
+        ]
-        ```
+      }
+    }
+    ```

docs/configuration/dns/server/hosts.zh.md

@@ -73,55 +73,24 @@ hosts 文件路径列表。
 
 === "如果可用则使用 hosts"
 
-    === ":material-card-multiple: sing-box 1.14.0"
+    ```json
-
+    {
-        ```json
+      "dns": {
-        {
+        "servers": [
-          "dns": {
+          {
-            "servers": [
+            ...
-              {
+          },
-                ...
+          {
-              },
+            "type": "hosts",
-              {
+            "tag": "hosts"
-                "type": "hosts",
-                "tag": "hosts"
-              }
-            ],
-            "rules": [
-              {
-                "action": "evaluate",
-                "server": "hosts"
-              },
-              {
-                "match_response": true,
-                "ip_accept_any": true,
-                "action": "respond"
-              }
-            ]
           }
-        }
+        ],
-        ```
+        "rules": [
-
+          {
-    === ":material-card-remove: sing-box < 1.14.0"
+            "ip_accept_any": true,
-
+            "server": "hosts"
-        ```json
-        {
-          "dns": {
-            "servers": [
-              {
-                ...
-              },
-              {
-                "type": "hosts",
-                "tag": "hosts"
-              }
-            ],
-            "rules": [
-              {
-                "ip_accept_any": true,
-                "server": "hosts"
-              }
-            ]
           }
-        }
+        ]
-        ```
+      }
+    }
+    ```

docs/configuration/dns/server/http3.md

@@ -2,10 +2,6 @@
 icon: material/new-box
 ---
 
-!!! quote "Changes in sing-box 1.14.0"
-
-    :material-alert: `headers`, `tls`, Dial Fields moved to [HTTP Client Fields](#http-client-fields)
-
 !!! question "Since sing-box 1.12.0"
 
 # DNS over HTTP3 (DoH3)
@@ -21,18 +17,25 @@ icon: material/new-box
         "tag": "",
         
         "server": "",
-        "server_port": 0,
+        "server_port": 443,
         
         "path": "",
-        "method": "",
+        "headers": {},
         
-        ... // HTTP Client Fields
+        "tls": {},
+        
+        // Dial Fields
       }
     ]
   }
 }
 ```
 
+!!! info "Difference from legacy H3 server"
+
+    * The old server uses default outbound by default unless detour is specified; the new one uses dialer just like outbound, which is equivalent to using an empty direct outbound by default.
+    * The old server uses `address_resolver` and `address_strategy` to resolve the domain name in the server; the new one uses `domain_resolver` and `domain_strategy` in [Dial Fields](/configuration/shared/dial/) instead.
+
 ### Fields
 
 #### server
@@ -55,14 +58,14 @@ The path of the DNS server.
 
 `/dns-query` will be used by default.
 
-#### method
+#### headers
 
-HTTP request method.
+Additional headers to be sent to the DNS server.
 
-Available values: `GET`, `POST`.
+#### tls
 
-`POST` will be used by default.
+TLS configuration, see [TLS](/configuration/shared/tls/#outbound).
 
-### HTTP Client Fields
+### Dial Fields
 
-See [HTTP Client Fields](/configuration/shared/http-client/) for details.
+See [Dial Fields](/configuration/shared/dial/) for details.

docs/configuration/dns/server/http3.zh.md

@@ -2,10 +2,6 @@
 icon: material/new-box
 ---
 
-!!! quote "sing-box 1.14.0 中的更改"
-
-    :material-alert: `headers`、`tls`、拨号字段已移至 [HTTP 客户端字段](#http-客户端字段)
-
 !!! question "自 sing-box 1.12.0 起"
 
 # DNS over HTTP3 (DoH3)
@@ -21,18 +17,25 @@ icon: material/new-box
         "tag": "",
 
         "server": "",
-        "server_port": 0,
+        "server_port": 443,
 
         "path": "",
-        "method": "",
+        "headers": {},
 
-        ... // HTTP 客户端字段
+        "tls": {},
+
+        // 拨号字段
       }
     ]
   }
 }
 ```
 
+!!! info "与旧版 H3 服务器的区别"
+
+    * 旧服务器默认使用默认出站，除非指定了绕行；新服务器像出站一样使用拨号器，相当于默认使用空的直连出站。
+    * 旧服务器使用 `address_resolver` 和 `address_strategy` 来解析服务器中的域名；新服务器改用 [拨号字段](/zh/configuration/shared/dial/) 中的 `domain_resolver` 和 `domain_strategy`。
+
 ### 字段
 
 #### server
@@ -55,14 +58,14 @@ DNS 服务器的路径。
 
 默认使用 `/dns-query`。
 
-#### method
+#### headers
 
-HTTP 请求方法。
+发送到 DNS 服务器的额外标头。
 
-可用值：`GET`、`POST`。
+#### tls
 
-默认使用 `POST`。
+TLS 配置，参阅 [TLS](/zh/configuration/shared/tls/#出站)。
 
-### HTTP 客户端字段
+### 拨号字段
 
-参阅 [HTTP 客户端字段](/zh/configuration/shared/http-client/) 了解详情。
+参阅 [拨号字段](/zh/configuration/shared/dial/) 了解详情。

docs/configuration/dns/server/https.md

@@ -2,10 +2,6 @@
 icon: material/new-box
 ---
 
-!!! quote "Changes in sing-box 1.14.0"
-
-    :material-alert: `headers`, `tls`, Dial Fields moved to [HTTP Client Fields](#http-client-fields)
-
 !!! question "Since sing-box 1.12.0"
 
 # DNS over HTTPS (DoH)
@@ -21,18 +17,25 @@ icon: material/new-box
         "tag": "",
         
         "server": "",
-        "server_port": 0,
+        "server_port": 443,
         
         "path": "",
-        "method": "",
+        "headers": {},
         
-        ... // HTTP Client Fields
+        "tls": {},
+        
+        // Dial Fields
       }
     ]
   }
 }
 ```
 
+!!! info "Difference from legacy HTTPS server"
+
+    * The old server uses default outbound by default unless detour is specified; the new one uses dialer just like outbound, which is equivalent to using an empty direct outbound by default.
+    * The old server uses `address_resolver` and `address_strategy` to resolve the domain name in the server; the new one uses `domain_resolver` and `domain_strategy` in [Dial Fields](/configuration/shared/dial/) instead.
+
 ### Fields
 
 #### server
@@ -55,14 +58,14 @@ The path of the DNS server.
 
 `/dns-query` will be used by default.
 
-#### method
+#### headers
 
-HTTP request method.
+Additional headers to be sent to the DNS server.
 
-Available values: `GET`, `POST`.
+#### tls
 
-`POST` will be used by default.
+TLS configuration, see [TLS](/configuration/shared/tls/#outbound).
 
-### HTTP Client Fields
+### Dial Fields
 
-See [HTTP Client Fields](/configuration/shared/http-client/) for details.
+See [Dial Fields](/configuration/shared/dial/) for details.

docs/configuration/dns/server/https.zh.md

@@ -2,10 +2,6 @@
 icon: material/new-box
 ---
 
-!!! quote "sing-box 1.14.0 中的更改"
-
-    :material-alert: `headers`、`tls`、拨号字段已移至 [HTTP 客户端字段](#http-客户端字段)
-
 !!! question "自 sing-box 1.12.0 起"
 
 # DNS over HTTPS (DoH)
@@ -21,18 +17,25 @@ icon: material/new-box
         "tag": "",
 
         "server": "",
-        "server_port": 0,
+        "server_port": 443,
 
         "path": "",
-        "method": "",
+        "headers": {},
 
-        ... // HTTP 客户端字段
+        "tls": {},
+
+        // 拨号字段
       }
     ]
   }
 }
 ```
 
+!!! info "与旧版 HTTPS 服务器的区别"
+
+    * 旧服务器默认使用默认出站，除非指定了绕行；新服务器像出站一样使用拨号器，相当于默认使用空的直连出站。
+    * 旧服务器使用 `address_resolver` 和 `address_strategy` 来解析服务器中的域名；新服务器改用 [拨号字段](/zh/configuration/shared/dial/) 中的 `domain_resolver` 和 `domain_strategy`。
+
 ### 字段
 
 #### server
@@ -55,14 +58,14 @@ DNS 服务器的路径。
 
 默认使用 `/dns-query`。
 
-#### method
+#### headers
 
-HTTP 请求方法。
+发送到 DNS 服务器的额外标头。
 
-可用值：`GET`、`POST`。
+#### tls
 
-默认使用 `POST`。
+TLS 配置，参阅 [TLS](/zh/configuration/shared/tls/#出站)。
 
-### HTTP 客户端字段
+### 拨号字段
 
-参阅 [HTTP 客户端字段](/zh/configuration/shared/http-client/) 了解详情。
+参阅 [拨号字段](/zh/configuration/shared/dial/) 了解详情。

docs/configuration/dns/server/index.md

@@ -29,7 +29,7 @@ The type of the DNS server.
 
 | Type            | Format                    |
 |-----------------|---------------------------|
-| empty (default) | :material-note-remove: [Legacy](./legacy/) |
+| empty (default) | [Legacy](./legacy/)       |
 | `local`         | [Local](./local/)         |
 | `hosts`         | [Hosts](./hosts/)         |
 | `tcp`           | [TCP](./tcp/)             |

docs/configuration/dns/server/index.zh.md

@@ -29,7 +29,7 @@ DNS 服务器的类型。
 
 | 类型              | 格式                        |
 |-----------------|---------------------------|
-| empty (default) | :material-note-remove: [Legacy](./legacy/) |
+| empty (default) | [Legacy](./legacy/)       |
 | `local`         | [Local](./local/)         |
 | `hosts`         | [Hosts](./hosts/)         |
 | `tcp`           | [TCP](./tcp/)             |

docs/configuration/dns/server/legacy.md

@@ -1,10 +1,10 @@
 ---
-icon: material/note-remove
+icon: material/delete-clock
 ---
 
-!!! failure "Removed in sing-box 1.14.0"
+!!! failure "Deprecated in sing-box 1.12.0"
 
-    Legacy DNS servers are deprecated in sing-box 1.12.0 and removed in sing-box 1.14.0, check [Migration](/migration/#migrate-to-new-dns-server-formats).
+    Legacy DNS servers is deprecated and will be removed in sing-box 1.14.0, check [Migration](/migration/#migrate-to-new-dns-servers).
 
 !!! quote "Changes in sing-box 1.9.0"
 
@@ -108,6 +108,6 @@ Append a `edns0-subnet` OPT extra record with the specified IP prefix to every q
 
 If value is an IP address instead of prefix, `/32` or `/128` will be appended automatically.
 
-Can be overridden by `rules.[].client_subnet`.
+Can be overrides by `rules.[].client_subnet`.
 
-Will override `dns.client_subnet`.
+Will overrides `dns.client_subnet`.

docs/configuration/dns/server/legacy.zh.md

@@ -1,10 +1,10 @@
 ---
-icon: material/note-remove
+icon: material/delete-clock
 ---
 
-!!! failure "已在 sing-box 1.14.0 移除"
+!!! failure "Deprecated in sing-box 1.12.0"
 
-    旧的 DNS 服务器配置已在 sing-box 1.12.0 废弃且已在 sing-box 1.14.0 中被移除，参阅 [迁移指南](/zh/migration/#迁移到新的-dns-服务器格式)。
+    旧的 DNS 服务器配置已废弃且将在 sing-box 1.14.0 中被移除，参阅 [迁移指南](/zh/migration/#迁移到新的-dns-服务器格式)。
 
 !!! quote "sing-box 1.9.0 中的更改"
 

docs/configuration/dns/server/resolved.md

@@ -43,62 +43,29 @@ If not enabled, `NXDOMAIN` will be returned for requests that do not match searc
 
 === "Split DNS only"
 
-    === ":material-card-multiple: sing-box 1.14.0"
+    ```json
-
+    {
-        ```json
+      "dns": {
-        {
+        "servers": [
-          "dns": {
+          {
-            "servers": [
+            "type": "local",
-              {
+            "tag": "local"
-                "type": "local",
+          },
-                "tag": "local"
+          {
-              },
+            "type": "resolved",
-              {
+            "tag": "resolved",
-                "type": "resolved",
+            "service": "resolved"
-                "tag": "resolved",
-                "service": "resolved"
-              }
-            ],
-            "rules": [
-              {
-                "action": "evaluate",
-                "server": "resolved"
-              },
-              {
-                "match_response": true,
-                "ip_accept_any": true,
-                "action": "respond"
-              }
-            ]
           }
-        }
+        ],
-        ```
+        "rules": [
-
+          {
-    === ":material-card-remove: sing-box < 1.14.0"
+            "ip_accept_any": true,
-
+            "server": "resolved"
-        ```json
-        {
-          "dns": {
-            "servers": [
-              {
-                "type": "local",
-                "tag": "local"
-              },
-              {
-                "type": "resolved",
-                "tag": "resolved",
-                "service": "resolved"
-              }
-            ],
-            "rules": [
-              {
-                "ip_accept_any": true,
-                "server": "resolved"
-              }
-            ]
           }
-        }
+        ]
-        ```
+      }
+    }
+    ```
 
 === "Use as global DNS"
 

docs/configuration/dns/server/resolved.zh.md

@@ -42,62 +42,29 @@ icon: material/new-box
 
 === "仅分割 DNS"
 
-    === ":material-card-multiple: sing-box 1.14.0"
+    ```json
-
+    {
-        ```json
+      "dns": {
-        {
+        "servers": [
-          "dns": {
+          {
-            "servers": [
+            "type": "local",
-              {
+            "tag": "local"
-                "type": "local",
+          },
-                "tag": "local"
+          {
-              },
+            "type": "resolved",
-              {
+            "tag": "resolved",
-                "type": "resolved",
+            "service": "resolved"
-                "tag": "resolved",
-                "service": "resolved"
-              }
-            ],
-            "rules": [
-              {
-                "action": "evaluate",
-                "server": "resolved"
-              },
-              {
-                "match_response": true,
-                "ip_accept_any": true,
-                "action": "respond"
-              }
-            ]
           }
-        }
+        ],
-        ```
+        "rules": [
-
+          {
-    === ":material-card-remove: sing-box < 1.14.0"
+            "ip_accept_any": true,
-
+            "server": "resolved"
-        ```json
-        {
-          "dns": {
-            "servers": [
-              {
-                "type": "local",
-                "tag": "local"
-              },
-              {
-                "type": "resolved",
-                "tag": "resolved",
-                "service": "resolved"
-              }
-            ],
-            "rules": [
-              {
-                "ip_accept_any": true,
-                "server": "resolved"
-              }
-            ]
           }
-        }
+        ]
-        ```
+      }
+    }
+    ```
 
 === "用作全局 DNS"
 

docs/configuration/dns/server/tailscale.md

@@ -42,62 +42,29 @@ if not enabled, `NXDOMAIN` will be returned for non-Tailscale domain queries.
 
 === "MagicDNS only"
 
-    === ":material-card-multiple: sing-box 1.14.0"
+    ```json
-
+    {
-        ```json
+      "dns": {
-        {
+        "servers": [
-          "dns": {
+          {
-            "servers": [
+            "type": "local",
-              {
+            "tag": "local"
-                "type": "local",
+          },
-                "tag": "local"
+          {
-              },
+            "type": "tailscale",
-              {
+            "tag": "ts",
-                "type": "tailscale",
+            "endpoint": "ts-ep"
-                "tag": "ts",
-                "endpoint": "ts-ep"
-              }
-            ],
-            "rules": [
-              {
-                "action": "evaluate",
-                "server": "ts"
-              },
-              {
-                "match_response": true,
-                "ip_accept_any": true,
-                "action": "respond"
-              }
-            ]
           }
-        }
+        ],
-        ```
+        "rules": [
-
+          {
-    === ":material-card-remove: sing-box < 1.14.0"
+            "ip_accept_any": true,
-
+            "server": "ts"
-        ```json
-        {
-          "dns": {
-            "servers": [
-              {
-                "type": "local",
-                "tag": "local"
-              },
-              {
-                "type": "tailscale",
-                "tag": "ts",
-                "endpoint": "ts-ep"
-              }
-            ],
-            "rules": [
-              {
-                "ip_accept_any": true,
-                "server": "ts"
-              }
-            ]
           }
-        }
+        ]
-        ```
+      }
+    }
+    ```
 
 === "Use as global DNS"