Add options to custom DNS query timeout

Signed-off-by: yanwo <ogilvy@gmail.com>

Makefile

@@ -245,8 +245,8 @@ lib:
 	go run ./cmd/internal/build_libbox -target ios
 
 lib_install:
-	go install -v github.com/sagernet/gomobile/cmd/gomobile@v0.1.7
+	go install -v github.com/sagernet/gomobile/cmd/gomobile@v0.1.6
-	go install -v github.com/sagernet/gomobile/cmd/gobind@v0.1.7
+	go install -v github.com/sagernet/gomobile/cmd/gobind@v0.1.6
 
 docs:
 	venv/bin/mkdocs serve

adapter/dns.go

@@ -3,6 +3,7 @@ package adapter
 import (
 	"context"
 	"net/netip"
+	"time"
 
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/log"
@@ -36,6 +37,7 @@ type DNSQueryOptions struct {
 	Transport      DNSTransport
 	Strategy       C.DomainStrategy
 	LookupStrategy C.DomainStrategy
+	Timeout        time.Duration
 	DisableCache   bool
 	RewriteTTL     *uint32
 	ClientSubnet   netip.Prefix
@@ -53,6 +55,7 @@ func DNSQueryOptionsFrom(ctx context.Context, options *option.DomainResolveOptio
 	return &DNSQueryOptions{
 		Transport:    transport,
 		Strategy:     C.DomainStrategy(options.Strategy),
+		Timeout:      time.Duration(options.Timeout),
 		DisableCache: options.DisableCache,
 		RewriteTTL:   options.RewriteTTL,
 		ClientSubnet: options.ClientSubnet.Build(netip.Prefix{}),
@@ -70,6 +73,7 @@ type DNSTransport interface {
 	Type() string
 	Tag() string
 	Dependencies() []string
+	HasDetour() bool
 	Exchange(ctx context.Context, message *dns.Msg) (*dns.Msg, error)
 }
 

cmd/internal/app_store_connect/main.go

@@ -177,7 +177,7 @@ func publishTestflight(ctx context.Context) error {
 			}
 			log.Info(string(platform), " ", tag, " publish")
 			response, err := client.TestFlight.AddBuildsToBetaGroup(ctx, groupID, []string{build.ID})
-			if response != nil && (response.StatusCode == http.StatusUnprocessableEntity || response.StatusCode == http.StatusNotFound) {
+			if response != nil && response.StatusCode == http.StatusUnprocessableEntity {
 				log.Info("waiting for process")
 				time.Sleep(15 * time.Second)
 				continue

cmd/internal/build_libbox/main.go

@@ -46,9 +46,8 @@ var (
 	sharedFlags []string
 	debugFlags  []string
 	sharedTags  []string
-	darwinTags  []string
+	iosTags     []string
 	memcTags    []string
-	notMemcTags []string
 	debugTags   []string
 )
 
@@ -63,9 +62,8 @@ func init() {
 	debugFlags = append(debugFlags, "-ldflags", "-X github.com/sagernet/sing-box/constant.Version="+currentTag)
 
 	sharedTags = append(sharedTags, "with_gvisor", "with_quic", "with_wireguard", "with_utls", "with_clash_api", "with_conntrack")
-	darwinTags = append(darwinTags, "with_dhcp")
+	iosTags = append(iosTags, "with_dhcp", "with_low_memory")
 	memcTags = append(memcTags, "with_tailscale")
-	notMemcTags = append(notMemcTags, "with_low_memory")
 	debugTags = append(debugTags, "debug")
 }
 
@@ -155,7 +153,6 @@ func buildApple() {
 		"-v",
 		"-target", bindTarget,
 		"-libname=box",
-		"-tags-not-macos=with_low_memory",
 	}
 	if !withTailscale {
 		args = append(args, "-tags-macos="+strings.Join(memcTags, ","))
@@ -167,7 +164,7 @@ func buildApple() {
 		args = append(args, debugFlags...)
 	}
 
-	tags := append(sharedTags, darwinTags...)
+	tags := append(sharedTags, iosTags...)
 	if withTailscale {
 		tags = append(tags, memcTags...)
 	}

common/dialer/dialer.go

@@ -89,6 +89,7 @@ func NewWithOptions(options Options) (N.Dialer, error) {
 			dnsQueryOptions = adapter.DNSQueryOptions{
 				Transport:    transport,
 				Strategy:     strategy,
+				Timeout:      time.Duration(dialOptions.DomainResolver.Timeout),
 				DisableCache: dialOptions.DomainResolver.DisableCache,
 				RewriteTTL:   dialOptions.DomainResolver.RewriteTTL,
 				ClientSubnet: dialOptions.DomainResolver.ClientSubnet.Build(netip.Prefix{}),

constant/timeout.go

@@ -9,6 +9,7 @@ const (
 	TCPTimeout                 = 15 * time.Second
 	ReadPayloadTimeout         = 300 * time.Millisecond
 	DNSTimeout                 = 10 * time.Second
+	DirectDNSTimeout           = 5 * time.Second
 	UDPTimeout                 = 5 * time.Minute
 	DefaultURLTestInterval     = 3 * time.Minute
 	DefaultURLTestIdleTimeout  = 30 * time.Minute

dns/client.go

@@ -30,7 +30,6 @@ var (
 var _ adapter.DNSClient = (*Client)(nil)
 
 type Client struct {
-	timeout          time.Duration
 	disableCache     bool
 	disableExpire    bool
 	independentCache bool
@@ -43,7 +42,6 @@ type Client struct {
 }
 
 type ClientOptions struct {
-	Timeout          time.Duration
 	DisableCache     bool
 	DisableExpire    bool
 	IndependentCache bool
@@ -55,7 +53,6 @@ type ClientOptions struct {
 
 func NewClient(options ClientOptions) *Client {
 	client := &Client{
-		timeout:          options.Timeout,
 		disableCache:     options.DisableCache,
 		disableExpire:    options.DisableExpire,
 		independentCache: options.IndependentCache,
@@ -63,9 +60,6 @@ func NewClient(options ClientOptions) *Client {
 		initRDRCFunc:     options.RDRC,
 		logger:           options.Logger,
 	}
-	if client.timeout == 0 {
-		client.timeout = C.DNSTimeout
-	}
 	cacheCapacity := options.CacheCapacity
 	if cacheCapacity < 1024 {
 		cacheCapacity = 1024
@@ -153,7 +147,15 @@ func (c *Client) Exchange(ctx context.Context, transport adapter.DNSTransport, m
 			return nil, ErrResponseRejectedCached
 		}
 	}
-	ctx, cancel := context.WithTimeout(ctx, c.timeout)
+	timeout := options.Timeout
+	if timeout == 0 {
+		if transport.HasDetour() {
+			timeout = C.DNSTimeout
+		} else {
+			timeout = C.DirectDNSTimeout
+		}
+	}
+	ctx, cancel := context.WithTimeout(ctx, timeout)
 	response, err := transport.Exchange(ctx, message)
 	cancel()
 	if err != nil {

dns/router.go

@@ -158,6 +158,9 @@ func (r *Router) matchDNS(ctx context.Context, allowFakeIP bool, ruleIndex int,
 				if action.Strategy != C.DomainStrategyAsIS {
 					options.Strategy = action.Strategy
 				}
+				if action.Timeout > 0 {
+					options.Timeout = action.Timeout
+				}
 				if isFakeIP || action.DisableCache {
 					options.DisableCache = true
 				}
@@ -180,6 +183,9 @@ func (r *Router) matchDNS(ctx context.Context, allowFakeIP bool, ruleIndex int,
 				if action.Strategy != C.DomainStrategyAsIS {
 					options.Strategy = action.Strategy
 				}
+				if action.Timeout > 0 {
+					options.Timeout = action.Timeout
+				}
 				if action.DisableCache {
 					options.DisableCache = true
 				}

dns/transport/dhcp/dhcp.go

@@ -41,6 +41,7 @@ type Transport struct {
 	dns.TransportAdapter
 	ctx               context.Context
 	dialer            N.Dialer
+	hasDetour         bool
 	logger            logger.ContextLogger
 	networkManager    adapter.NetworkManager
 	interfaceName     string
@@ -59,6 +60,7 @@ func NewTransport(ctx context.Context, logger log.ContextLogger, tag string, opt
 		TransportAdapter: dns.NewTransportAdapterWithLocalOptions(C.DNSTypeDHCP, tag, options.LocalDNSServerOptions),
 		ctx:              ctx,
 		dialer:           transportDialer,
+		hasDetour:        options.Detour != "",
 		logger:           logger,
 		networkManager:   service.FromContext[adapter.NetworkManager](ctx),
 		interfaceName:    options.Interface,
@@ -89,6 +91,10 @@ func (t *Transport) Close() error {
 	return nil
 }
 
+func (t *Transport) HasDetour() bool {
+	return t.hasDetour
+}
+
 func (t *Transport) Exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg, error) {
 	err := t.fetchServers()
 	if err != nil {

dns/transport_adapter.go

@@ -14,6 +14,7 @@ type TransportAdapter struct {
 	transportType string
 	transportTag  string
 	dependencies  []string
+	hasDetour     bool
 	strategy      C.DomainStrategy
 	clientSubnet  netip.Prefix
 }
@@ -35,6 +36,7 @@ func NewTransportAdapterWithLocalOptions(transportType string, transportTag stri
 		transportType: transportType,
 		transportTag:  transportTag,
 		dependencies:  dependencies,
+		hasDetour:     localOptions.Detour != "",
 		strategy:      C.DomainStrategy(localOptions.LegacyStrategy),
 		clientSubnet:  localOptions.LegacyClientSubnet,
 	}
@@ -69,6 +71,10 @@ func (a *TransportAdapter) Dependencies() []string {
 	return a.dependencies
 }
 
+func (a *TransportAdapter) HasDetour() bool {
+	return a.hasDetour
+}
+
 func (a *TransportAdapter) LegacyStrategy() C.DomainStrategy {
 	return a.strategy
 }

docs/changelog.md

@@ -2,15 +2,10 @@
 icon: material/alert-decagram
 ---
 
-#### 1.12.0-beta.31
+#### 1.12.0-beta.30
 
-* Improve tun performance on Apple platforms **1**
 * Fixes and improvements
 
-**1**:
-
-We have significantly improved the performance of tun inbound on Apple platforms, especially in the gVisor stack.
-
 ### 1.11.14
 
 * Fixes and improvements

go.mod

@@ -25,16 +25,16 @@ require (
 	github.com/sagernet/bbolt v0.0.0-20231014093535-ea5cb2fe9f0a
 	github.com/sagernet/cors v1.2.1
 	github.com/sagernet/fswatch v0.1.1
-	github.com/sagernet/gomobile v0.1.7
+	github.com/sagernet/gomobile v0.1.6
 	github.com/sagernet/gvisor v0.0.0-20250325023245-7a9c0f5725fb
 	github.com/sagernet/quic-go v0.52.0-beta.1
-	github.com/sagernet/sing v0.6.12-0.20250703120903-7081a0c40539
+	github.com/sagernet/sing v0.6.11-0.20250521033217-30d675ea099b
 	github.com/sagernet/sing-mux v0.3.2
 	github.com/sagernet/sing-quic v0.5.0-beta.2
 	github.com/sagernet/sing-shadowsocks v0.2.8
 	github.com/sagernet/sing-shadowsocks2 v0.2.1
 	github.com/sagernet/sing-shadowtls v0.2.1-0.20250503051639-fcd445d33c11
-	github.com/sagernet/sing-tun v0.6.10-0.20250703121732-a0881ada3251
+	github.com/sagernet/sing-tun v0.6.10-0.20250630100036-8763c24e4935
 	github.com/sagernet/sing-vmess v0.2.4-0.20250605032146-38cc72672c88
 	github.com/sagernet/smux v1.5.34-mod.2
 	github.com/sagernet/tailscale v1.80.3-mod.5

go.sum

@@ -157,8 +157,8 @@ github.com/sagernet/cors v1.2.1 h1:Cv5Z8y9YSD6Gm+qSpNrL3LO4lD3eQVvbFYJSG7JCMHQ=
 github.com/sagernet/cors v1.2.1/go.mod h1:O64VyOjjhrkLmQIjF4KGRrJO/5dVXFdpEmCW/eISRAI=
 github.com/sagernet/fswatch v0.1.1 h1:YqID+93B7VRfqIH3PArW/XpJv5H4OLEVWDfProGoRQs=
 github.com/sagernet/fswatch v0.1.1/go.mod h1:nz85laH0mkQqJfaOrqPpkwtU1znMFNVTpT/5oRsVz/o=
-github.com/sagernet/gomobile v0.1.7 h1:I9jCJZTH0weP5MsuydvYHX5QfN/r6Fe8ptAIj1+SJVg=
+github.com/sagernet/gomobile v0.1.6 h1:JkR1ToKOrdoiwULte4pYS5HYdPBzl2N+JNuuwVuLs0k=
-github.com/sagernet/gomobile v0.1.7/go.mod h1:Pqq2+ZVvs10U7xK+UwJgwYWUykewi8H6vlslAO73n9E=
+github.com/sagernet/gomobile v0.1.6/go.mod h1:Pqq2+ZVvs10U7xK+UwJgwYWUykewi8H6vlslAO73n9E=
 github.com/sagernet/gvisor v0.0.0-20250325023245-7a9c0f5725fb h1:pprQtDqNgqXkRsXn+0E8ikKOemzmum8bODjSfDene38=
 github.com/sagernet/gvisor v0.0.0-20250325023245-7a9c0f5725fb/go.mod h1:QkkPEJLw59/tfxgapHta14UL5qMUah5NXhO0Kw2Kan4=
 github.com/sagernet/netlink v0.0.0-20240612041022-b9a21c07ac6a h1:ObwtHN2VpqE0ZNjr6sGeT00J8uU7JF4cNUdb44/Duis=
@@ -168,8 +168,8 @@ github.com/sagernet/nftables v0.3.0-beta.4/go.mod h1:OQXAjvjNGGFxaTgVCSTRIhYB5/l
 github.com/sagernet/quic-go v0.52.0-beta.1 h1:hWkojLg64zjV+MJOvJU/kOeWndm3tiEfBLx5foisszs=
 github.com/sagernet/quic-go v0.52.0-beta.1/go.mod h1:OV+V5kEBb8kJS7k29MzDu6oj9GyMc7HA07sE1tedxz4=
 github.com/sagernet/sing v0.6.9/go.mod h1:ARkL0gM13/Iv5VCZmci/NuoOlePoIsW0m7BWfln/Hak=
-github.com/sagernet/sing v0.6.12-0.20250703120903-7081a0c40539 h1:SK4M4FCNdwV4EiYKIUZ9qM4lr/1NQogJe1YoyYw5DV8=
+github.com/sagernet/sing v0.6.11-0.20250521033217-30d675ea099b h1:ZjTCYPb5f7aHdf1UpUvE22dVmf7BL8eQ/zLZhjgh7Wo=
-github.com/sagernet/sing v0.6.12-0.20250703120903-7081a0c40539/go.mod h1:ARkL0gM13/Iv5VCZmci/NuoOlePoIsW0m7BWfln/Hak=
+github.com/sagernet/sing v0.6.11-0.20250521033217-30d675ea099b/go.mod h1:ARkL0gM13/Iv5VCZmci/NuoOlePoIsW0m7BWfln/Hak=
 github.com/sagernet/sing-mux v0.3.2 h1:meZVFiiStvHThb/trcpAkCrmtJOuItG5Dzl1RRP5/NE=
 github.com/sagernet/sing-mux v0.3.2/go.mod h1:pht8iFY4c9Xltj7rhVd208npkNaeCxzyXCgulDPLUDA=
 github.com/sagernet/sing-quic v0.5.0-beta.2 h1:j7KAbBuGmsKwSxVAQL5soJ+wDqxim4/llK2kxB0hSKk=
@@ -180,8 +180,8 @@ github.com/sagernet/sing-shadowsocks2 v0.2.1 h1:dWV9OXCeFPuYGHb6IRqlSptVnSzOelnq
 github.com/sagernet/sing-shadowsocks2 v0.2.1/go.mod h1:RnXS0lExcDAovvDeniJ4IKa2IuChrdipolPYWBv9hWQ=
 github.com/sagernet/sing-shadowtls v0.2.1-0.20250503051639-fcd445d33c11 h1:tK+75l64tm9WvEFrYRE1t0YxoFdWQqw/h7Uhzj0vJ+w=
 github.com/sagernet/sing-shadowtls v0.2.1-0.20250503051639-fcd445d33c11/go.mod h1:sWqKnGlMipCHaGsw1sTTlimyUpgzP4WP3pjhCsYt9oA=
-github.com/sagernet/sing-tun v0.6.10-0.20250703121732-a0881ada3251 h1:eH9naJXvyF/DZDk0V1SYkL6ypYD+A1tUFWLcT7PRezg=
+github.com/sagernet/sing-tun v0.6.10-0.20250630100036-8763c24e4935 h1:wha4BG4mrEKaIoouVyiU5BcPfKD1n0LkiL4vqdjaVps=
-github.com/sagernet/sing-tun v0.6.10-0.20250703121732-a0881ada3251/go.mod h1:fisFCbC4Vfb6HqQNcwPJi2CDK2bf0Xapyz3j3t4cnHE=
+github.com/sagernet/sing-tun v0.6.10-0.20250630100036-8763c24e4935/go.mod h1:fisFCbC4Vfb6HqQNcwPJi2CDK2bf0Xapyz3j3t4cnHE=
 github.com/sagernet/sing-vmess v0.2.4-0.20250605032146-38cc72672c88 h1:0pVm8sPOel+BoiCddW3pV3cKDKEaSioVTYDdTSKjyFI=
 github.com/sagernet/sing-vmess v0.2.4-0.20250605032146-38cc72672c88/go.mod h1:IL8Rr+EGwuqijszZkNrEFTQDKhilEpkqFqOlvdpS6/w=
 github.com/sagernet/smux v1.5.34-mod.2 h1:gkmBjIjlJ2zQKpLigOkFur5kBKdV6bNRoFu2WkltRQ4=

option/outbound.go

@@ -91,6 +91,7 @@ type DialerOptions struct {
 type _DomainResolveOptions struct {
 	Server       string                `json:"server"`
 	Strategy     DomainStrategy        `json:"strategy,omitempty"`
+	Timeout      badoption.Duration    `json:"timeout,omitempty"`
 	DisableCache bool                  `json:"disable_cache,omitempty"`
 	RewriteTTL   *uint32               `json:"rewrite_ttl,omitempty"`
 	ClientSubnet *badoption.Prefixable `json:"client_subnet,omitempty"`
@@ -102,6 +103,7 @@ func (o DomainResolveOptions) MarshalJSON() ([]byte, error) {
 	if o.Server == "" {
 		return []byte("{}"), nil
 	} else if o.Strategy == DomainStrategy(C.DomainStrategyAsIS) &&
+		o.Timeout == 0 &&
 		!o.DisableCache &&
 		o.RewriteTTL == nil &&
 		o.ClientSubnet == nil {

option/rule_action.go

@@ -180,6 +180,7 @@ func (r *RouteOptionsActionOptions) UnmarshalJSON(data []byte) error {
 type DNSRouteActionOptions struct {
 	Server       string                `json:"server,omitempty"`
 	Strategy     DomainStrategy        `json:"strategy,omitempty"`
+	Timeout      badoption.Duration    `json:"timeout,omitempty"`
 	DisableCache bool                  `json:"disable_cache,omitempty"`
 	RewriteTTL   *uint32               `json:"rewrite_ttl,omitempty"`
 	ClientSubnet *badoption.Prefixable `json:"client_subnet,omitempty"`
@@ -187,6 +188,7 @@ type DNSRouteActionOptions struct {
 
 type _DNSRouteOptionsActionOptions struct {
 	Strategy     DomainStrategy        `json:"strategy,omitempty"`
+	Timeout      badoption.Duration    `json:"timeout,omitempty"`
 	DisableCache bool                  `json:"disable_cache,omitempty"`
 	RewriteTTL   *uint32               `json:"rewrite_ttl,omitempty"`
 	ClientSubnet *badoption.Prefixable `json:"client_subnet,omitempty"`

protocol/tun/inbound.go

@@ -130,14 +130,9 @@ func NewInbound(ctx context.Context, router adapter.Router, logger log.ContextLo
 		deprecated.Report(ctx, deprecated.OptionTUNGSO)
 	}
 
-	platformInterface := service.FromContext[platform.Interface](ctx)
 	tunMTU := options.MTU
 	if tunMTU == 0 {
-		if platformInterface != nil && platformInterface.UnderNetworkExtension() {
+		tunMTU = 9000
-			tunMTU = 4000
-		} else {
-			tunMTU = 9000
-		}
 	}
 	var udpTimeout time.Duration
 	if options.UDPTimeout != 0 {
@@ -213,7 +208,7 @@ func NewInbound(ctx context.Context, router adapter.Router, logger log.ContextLo
 		},
 		udpTimeout:        udpTimeout,
 		stack:             options.Stack,
-		platformInterface: platformInterface,
+		platformInterface: service.FromContext[platform.Interface](ctx),
 		platformOptions:   common.PtrValueOrDefault(options.Platform),
 	}
 	for _, routeAddressSet := range options.RouteAddressSet {

route/network.go

@@ -76,6 +76,7 @@ func NewNetworkManager(ctx context.Context, logger logger.ContextLogger, routeOp
 			DomainResolver: defaultDomainResolver.Server,
 			DomainResolveOptions: adapter.DNSQueryOptions{
 				Strategy:     C.DomainStrategy(defaultDomainResolver.Strategy),
+				Timeout:      time.Duration(defaultDomainResolver.Timeout),
 				DisableCache: defaultDomainResolver.DisableCache,
 				RewriteTTL:   defaultDomainResolver.RewriteTTL,
 				ClientSubnet: defaultDomainResolver.ClientSubnet.Build(netip.Prefix{}),

route/route.go

@@ -666,6 +666,7 @@ func (r *Router) actionResolve(ctx context.Context, metadata *adapter.InboundCon
 		addresses, err := r.dns.Lookup(adapter.WithContext(ctx, metadata), metadata.Destination.Fqdn, adapter.DNSQueryOptions{
 			Transport:    transport,
 			Strategy:     action.Strategy,
+			Timeout:      action.Timeout,
 			DisableCache: action.DisableCache,
 			RewriteTTL:   action.RewriteTTL,
 			ClientSubnet: action.ClientSubnet,

route/rule/rule_action.go

@@ -113,6 +113,7 @@ func NewDNSRuleAction(logger logger.ContextLogger, action option.DNSRuleAction)
 			Server: action.RouteOptions.Server,
 			RuleActionDNSRouteOptions: RuleActionDNSRouteOptions{
 				Strategy:     C.DomainStrategy(action.RouteOptions.Strategy),
+				Timeout:      time.Duration(action.RouteOptions.Timeout),
 				DisableCache: action.RouteOptions.DisableCache,
 				RewriteTTL:   action.RouteOptions.RewriteTTL,
 				ClientSubnet: netip.Prefix(common.PtrValueOrDefault(action.RouteOptions.ClientSubnet)),
@@ -121,6 +122,7 @@ func NewDNSRuleAction(logger logger.ContextLogger, action option.DNSRuleAction)
 	case C.RuleActionTypeRouteOptions:
 		return &RuleActionDNSRouteOptions{
 			Strategy:     C.DomainStrategy(action.RouteOptionsOptions.Strategy),
+			Timeout:      time.Duration(action.RouteOptionsOptions.Timeout),
 			DisableCache: action.RouteOptionsOptions.DisableCache,
 			RewriteTTL:   action.RouteOptionsOptions.RewriteTTL,
 			ClientSubnet: netip.Prefix(common.PtrValueOrDefault(action.RouteOptionsOptions.ClientSubnet)),
@@ -235,20 +237,13 @@ func (r *RuleActionDNSRoute) Type() string {
 func (r *RuleActionDNSRoute) String() string {
 	var descriptions []string
 	descriptions = append(descriptions, r.Server)
-	if r.DisableCache {
+	descriptions = append(descriptions, r.Descriptions()...)
-		descriptions = append(descriptions, "disable-cache")
-	}
-	if r.RewriteTTL != nil {
-		descriptions = append(descriptions, F.ToString("rewrite-ttl=", *r.RewriteTTL))
-	}
-	if r.ClientSubnet.IsValid() {
-		descriptions = append(descriptions, F.ToString("client-subnet=", r.ClientSubnet))
-	}
 	return F.ToString("route(", strings.Join(descriptions, ","), ")")
 }
 
 type RuleActionDNSRouteOptions struct {
 	Strategy     C.DomainStrategy
+	Timeout      time.Duration
 	DisableCache bool
 	RewriteTTL   *uint32
 	ClientSubnet netip.Prefix
@@ -259,7 +254,17 @@ func (r *RuleActionDNSRouteOptions) Type() string {
 }
 
 func (r *RuleActionDNSRouteOptions) String() string {
+	return F.ToString("route-options(", strings.Join(r.Descriptions(), ","), ")")
+}
+
+func (r *RuleActionDNSRouteOptions) Descriptions() []string {
 	var descriptions []string
+	if r.Strategy != C.DomainStrategyAsIS {
+		descriptions = append(descriptions, F.ToString("strategy=", option.DomainStrategy(r.Strategy)))
+	}
+	if r.Timeout > 0 {
+		descriptions = append(descriptions, F.ToString("timeout=", r.Timeout.String()))
+	}
 	if r.DisableCache {
 		descriptions = append(descriptions, "disable-cache")
 	}
@@ -269,7 +274,7 @@ func (r *RuleActionDNSRouteOptions) String() string {
 	if r.ClientSubnet.IsValid() {
 		descriptions = append(descriptions, F.ToString("client-subnet=", r.ClientSubnet))
 	}
-	return F.ToString("route-options(", strings.Join(descriptions, ","), ")")
+	return descriptions
 }
 
 type RuleActionDirect struct {
@@ -421,6 +426,7 @@ func (r *RuleActionSniff) String() string {
 type RuleActionResolve struct {
 	Server       string
 	Strategy     C.DomainStrategy
+	Timeout      time.Duration
 	DisableCache bool
 	RewriteTTL   *uint32
 	ClientSubnet netip.Prefix
@@ -438,6 +444,9 @@ func (r *RuleActionResolve) String() string {
 	if r.Strategy != C.DomainStrategyAsIS {
 		options = append(options, F.ToString(option.DomainStrategy(r.Strategy)))
 	}
+	if r.Timeout > 0 {
+		options = append(options, F.ToString("timeout=", r.Timeout.String()))
+	}
 	if r.DisableCache {
 		options = append(options, "disable_cache")
 	}

transport/v2rayhttp/conn.go

@@ -31,9 +31,6 @@ type HTTPConn struct {
 }
 
 func NewHTTP1Conn(conn net.Conn, request *http.Request) *HTTPConn {
-	if request.Header.Get("Host") == "" {
-		request.Header.Set("Host", request.Host)
-	}
 	return &HTTPConn{
 		Conn:    conn,
 		request: request,
@@ -92,6 +89,9 @@ func (c *HTTPConn) writeRequest(payload []byte) error {
 	if err != nil {
 		return err
 	}
+	if c.request.Header.Get("Host") == "" {
+		c.request.Header.Set("Host", c.request.Host)
+	}
 	for key, value := range c.request.Header {
 		_, err = writer.Write([]byte(F.ToString(key, ": ", strings.Join(value, ", "), CRLF)))
 		if err != nil {