Bump version

Co-authored-by: chenqixin <chenqixin@bytedance.com>

.github/workflows/build.yml

@@ -468,11 +468,11 @@ jobs:
       - name: Setup Xcode stable
         if: matrix.if && github.ref == 'refs/heads/main-next'
         run: |-
-          sudo xcode-select -s /Applications/Xcode_16.2.app
+          sudo xcode-select -s /Applications/Xcode_16.4.app
       - name: Setup Xcode beta
         if: matrix.if && github.ref == 'refs/heads/dev-next'
         run: |-
-          sudo xcode-select -s /Applications/Xcode_16.2.app
+          sudo xcode-select -s /Applications/Xcode_16.4.app
       - name: Set tag
         if: matrix.if
         run: |-

Makefile

@@ -1,6 +1,6 @@
 NAME = sing-box
 COMMIT = $(shell git rev-parse --short HEAD)
-TAGS_GO120 = with_gvisor,with_dhcp,with_wireguard,with_reality_server,with_clash_api,with_quic,with_utls
+TAGS_GO120 = with_gvisor,with_dhcp,with_wireguard,with_reality_server,with_clash_api,with_quic,with_utls,with_acme
 TAGS_GO121 = with_ech
 TAGS ?= $(TAGS_GO118),$(TAGS_GO120),$(TAGS_GO121)
 TAGS_TEST ?= with_gvisor,with_quic,with_wireguard,with_grpc,with_ech,with_utls,with_reality_server

adapter/inbound.go

@@ -53,11 +53,11 @@ type InboundContext struct {
 
 	// sniffer
 
-	Protocol         string
+	Protocol     string
-	Domain           string
+	Domain       string
-	Client           string
+	Client       string
-	SniffContext     any
+	SniffContext any
-	PacketSniffError error
+	SniffError   error
 
 	// cache
 

clients/android

@@ -1 +1 @@
-Subproject commit 320170a1077ea5c93872b3e055b96b8836615ef0
+Subproject commit 7f1fa971e3c7bbc504c2bd455f4e813a562990cb

clients/apple

@@ -1 +1 @@
-Subproject commit ae5818ee5a24af965dc91f80bffa16e1e6c109c1
+Subproject commit f7883b0f3ec26c449cba26b3b1a692f070f5424d

common/process/searcher_darwin.go

@@ -76,6 +76,8 @@ func findProcessName(network string, ip netip.Addr, port int) (string, error) {
 		// rup8(sizeof(xtcpcb_n))
 		itemSize += 208
 	}
+
+	var fallbackUDPProcess string
 	// skip the first xinpgen(24 bytes) block
 	for i := 24; i+itemSize <= len(buf); i += itemSize {
 		// offset of xinpcb_n and xsocket_n
@@ -90,10 +92,12 @@ func findProcessName(network string, ip netip.Addr, port int) (string, error) {
 		flag := buf[inp+44]
 
 		var srcIP netip.Addr
+		srcIsIPv4 := false
 		switch {
 		case flag&0x1 > 0 && isIPv4:
 			// ipv4
 			srcIP = netip.AddrFrom4(*(*[4]byte)(buf[inp+76 : inp+80]))
+			srcIsIPv4 = true
 		case flag&0x2 > 0 && !isIPv4:
 			// ipv6
 			srcIP = netip.AddrFrom16(*(*[16]byte)(buf[inp+64 : inp+80]))
@@ -101,13 +105,21 @@ func findProcessName(network string, ip netip.Addr, port int) (string, error) {
 			continue
 		}
 
-		if ip != srcIP {
+		if ip == srcIP {
-			continue
+			// xsocket_n.so_last_pid
+			pid := readNativeUint32(buf[so+68 : so+72])
+			return getExecPathFromPID(pid)
 		}
 
-		// xsocket_n.so_last_pid
+		// udp packet connection may be not equal with srcIP
-		pid := readNativeUint32(buf[so+68 : so+72])
+		if network == N.NetworkUDP && srcIP.IsUnspecified() && isIPv4 == srcIsIPv4 {
-		return getExecPathFromPID(pid)
+			pid := readNativeUint32(buf[so+68 : so+72])
+			fallbackUDPProcess, _ = getExecPathFromPID(pid)
+		}
+	}
+
+	if network == N.NetworkUDP && len(fallbackUDPProcess) > 0 {
+		return fallbackUDPProcess, nil
 	}
 
 	return "", ErrNotFound

common/tls/acme.go

@@ -5,13 +5,13 @@ package tls
 import (
 	"context"
 	"crypto/tls"
-	"os"
 	"strings"
 
 	"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/logger"
 
 	"github.com/caddyserver/certmagic"
 	"github.com/libdns/alidns"
@@ -37,7 +37,38 @@ func (w *acmeWrapper) Close() error {
 	return nil
 }
 
-func startACME(ctx context.Context, options option.InboundACMEOptions) (*tls.Config, adapter.Service, error) {
+type acmeLogWriter struct {
+	logger logger.Logger
+}
+
+func (w *acmeLogWriter) Write(p []byte) (n int, err error) {
+	logLine := strings.ReplaceAll(string(p), "	", ": ")
+	switch {
+	case strings.HasPrefix(logLine, "error: "):
+		w.logger.Error(logLine[7:])
+	case strings.HasPrefix(logLine, "warn: "):
+		w.logger.Warn(logLine[6:])
+	case strings.HasPrefix(logLine, "info: "):
+		w.logger.Info(logLine[6:])
+	case strings.HasPrefix(logLine, "debug: "):
+		w.logger.Debug(logLine[7:])
+	default:
+		w.logger.Debug(logLine)
+	}
+	return len(p), nil
+}
+
+func (w *acmeLogWriter) Sync() error {
+	return nil
+}
+
+func encoderConfig() zapcore.EncoderConfig {
+	config := zap.NewProductionEncoderConfig()
+	config.TimeKey = zapcore.OmitKey
+	return config
+}
+
+func startACME(ctx context.Context, logger logger.Logger, options option.InboundACMEOptions) (*tls.Config, adapter.Service, error) {
 	var acmeServer string
 	switch options.Provider {
 	case "", "letsencrypt":
@@ -58,14 +89,15 @@ func startACME(ctx context.Context, options option.InboundACMEOptions) (*tls.Con
 	} else {
 		storage = certmagic.Default.Storage
 	}
+	zapLogger := zap.New(zapcore.NewCore(
+		zapcore.NewConsoleEncoder(encoderConfig()),
+		&acmeLogWriter{logger: logger},
+		zap.DebugLevel,
+	))
 	config := &certmagic.Config{
 		DefaultServerName: options.DefaultServerName,
 		Storage:           storage,
-		Logger: zap.New(zapcore.NewCore(
+		Logger:            zapLogger,
-			zapcore.NewConsoleEncoder(zap.NewProductionEncoderConfig()),
-			os.Stderr,
-			zap.InfoLevel,
-		)),
 	}
 	acmeConfig := certmagic.ACMEIssuer{
 		CA:                      acmeServer,
@@ -75,7 +107,7 @@ func startACME(ctx context.Context, options option.InboundACMEOptions) (*tls.Con
 		DisableTLSALPNChallenge: options.DisableTLSALPNChallenge,
 		AltHTTPPort:             int(options.AlternativeHTTPPort),
 		AltTLSALPNPort:          int(options.AlternativeTLSPort),
-		Logger:                  config.Logger,
+		Logger:                  zapLogger,
 	}
 	if dnsOptions := options.DNS01Challenge; dnsOptions != nil && dnsOptions.Provider != "" {
 		var solver certmagic.DNS01Solver
@@ -103,6 +135,7 @@ func startACME(ctx context.Context, options option.InboundACMEOptions) (*tls.Con
 		GetConfigForCert: func(certificate certmagic.Certificate) (*certmagic.Config, error) {
 			return config, nil
 		},
+		Logger: zapLogger,
 	})
 	config = certmagic.New(cache, *config)
 	var tlsConfig *tls.Config

common/tls/acme_stub.go

@@ -9,8 +9,9 @@ import (
 	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-box/option"
 	E "github.com/sagernet/sing/common/exceptions"
+	"github.com/sagernet/sing/common/logger"
 )
 
-func startACME(ctx context.Context, options option.InboundACMEOptions) (*tls.Config, adapter.Service, error) {
+func startACME(ctx context.Context, logger logger.Logger, options option.InboundACMEOptions) (*tls.Config, adapter.Service, error) {
 	return nil, nil, E.New(`ACME is not included in this build, rebuild with -tags with_acme`)
 }

common/tls/std_server.go

@@ -157,7 +157,7 @@ func NewSTDServer(ctx context.Context, logger log.Logger, options option.Inbound
 	var err error
 	if options.ACME != nil && len(options.ACME.Domain) > 0 {
 		//nolint:staticcheck
-		tlsConfig, acmeService, err = startACME(ctx, common.PtrValueOrDefault(options.ACME))
+		tlsConfig, acmeService, err = startACME(ctx, logger, common.PtrValueOrDefault(options.ACME))
 		if err != nil {
 			return nil, err
 		}

docs/changelog.md

@@ -2,6 +2,20 @@
 icon: material/alert-decagram
 ---
 
+### 1.11.15
+
+* Fixes and improvements
+
+_We are temporarily unable to update sing-box apps on the App Store because the reviewer mistakenly found that we
+violated the rules (TestFlight users are not affected)._
+
+### 1.11.14
+
+* Fixes and improvements
+
+_We are temporarily unable to update sing-box apps on the App Store because the reviewer mistakenly found that we
+violated the rules (TestFlight users are not affected)._
+
 ### 1.11.13
 
 * Fixes and improvements

docs/configuration/experimental/clash-api.md

@@ -63,7 +63,7 @@ icon: material/new-box
     {
       "external_controller": "0.0.0.0:9090",
       "external_ui": "dashboard"
-      // external_ui_download_detour: "direct"
+      // "external_ui_download_detour": "direct"
     }
     ```
 

docs/configuration/experimental/clash-api.zh.md

@@ -63,7 +63,7 @@ icon: material/new-box
     {
       "external_controller": "0.0.0.0:9090",
       "external_ui": "dashboard"
-      // external_ui_download_detour: "direct"
+      // "external_ui_download_detour": "direct"
     }
     ```
 

go.mod

@@ -27,13 +27,13 @@ require (
 	github.com/sagernet/quic-go v0.49.0-beta.1
 	github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691
 	github.com/sagernet/sing v0.6.10
-	github.com/sagernet/sing-dns v0.4.5
+	github.com/sagernet/sing-dns v0.4.6
 	github.com/sagernet/sing-mux v0.3.2
 	github.com/sagernet/sing-quic v0.4.3
 	github.com/sagernet/sing-shadowsocks v0.2.8
 	github.com/sagernet/sing-shadowsocks2 v0.2.1
 	github.com/sagernet/sing-shadowtls v0.2.0
-	github.com/sagernet/sing-tun v0.6.5
+	github.com/sagernet/sing-tun v0.6.9
 	github.com/sagernet/sing-vmess v0.2.3
 	github.com/sagernet/smux v1.5.34-mod.2
 	github.com/sagernet/utls v1.6.7

go.sum

@@ -121,8 +121,8 @@ github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691/go.mod h1:B8lp4Wk
 github.com/sagernet/sing v0.6.9/go.mod h1:ARkL0gM13/Iv5VCZmci/NuoOlePoIsW0m7BWfln/Hak=
 github.com/sagernet/sing v0.6.10 h1:Jey1tePgH9bjFuK1fQI3D9T+bPOQ4SdHMjuS4sYjDv4=
 github.com/sagernet/sing v0.6.10/go.mod h1:ARkL0gM13/Iv5VCZmci/NuoOlePoIsW0m7BWfln/Hak=
-github.com/sagernet/sing-dns v0.4.5 h1:D9REN14qx2FTrZRBrtFLL99f2CuFzQ9S7mIf8uV5hZI=
+github.com/sagernet/sing-dns v0.4.6 h1:mjZC0o6d5sQ1sraoOBbK3G3apCbuL8wWYwu2RNu5rbM=
-github.com/sagernet/sing-dns v0.4.5/go.mod h1:dweQs54ng2YGzoJfz+F9dGuDNdP5pJ3PLeggnK5VWc8=
+github.com/sagernet/sing-dns v0.4.6/go.mod h1:dweQs54ng2YGzoJfz+F9dGuDNdP5pJ3PLeggnK5VWc8=
 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 v0.4.3 h1:OZ/kGvSzjtYg+t0DY3F606hlT5LeiQQXDxfBopcRryQ=
@@ -133,8 +133,8 @@ 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 v0.2.0 h1:cLKe4OAOFwuhmAIuPLj//CIL7Q9js+pIDardhJ+/osk=
 github.com/sagernet/sing-shadowtls v0.2.0/go.mod h1:agU+Fw5X+xnWVyRHyFthoZCX3MfWKCFPm4JUf+1oaxo=
-github.com/sagernet/sing-tun v0.6.5 h1:nGfD6GNq/r0tEjdZHOV3BS6fydSmd4kBAokU5rffssg=
+github.com/sagernet/sing-tun v0.6.9 h1:uP8O4Q7U9QesjWumgxd2S9fjT3c6aEPWl5RB6uBdVB8=
-github.com/sagernet/sing-tun v0.6.5/go.mod h1:fisFCbC4Vfb6HqQNcwPJi2CDK2bf0Xapyz3j3t4cnHE=
+github.com/sagernet/sing-tun v0.6.9/go.mod h1:fisFCbC4Vfb6HqQNcwPJi2CDK2bf0Xapyz3j3t4cnHE=
 github.com/sagernet/sing-vmess v0.2.3 h1:z6Ym8dnZG7k1fP3+54vz8G0tvRVJeOoTFFeUPwXTD44=
 github.com/sagernet/sing-vmess v0.2.3/go.mod h1:jDAZ0A0St1zVRkyvhAPRySOFfhC+4SQtO5VYyeFotgA=
 github.com/sagernet/smux v1.5.34-mod.2 h1:gkmBjIjlJ2zQKpLigOkFur5kBKdV6bNRoFu2WkltRQ4=

protocol/vless/inbound.go

@@ -205,6 +205,10 @@ func (h *inboundTransportHandler) NewConnectionEx(ctx context.Context, conn net.
 	var metadata adapter.InboundContext
 	metadata.Source = source
 	metadata.Destination = destination
+	//nolint:staticcheck
+	metadata.InboundDetour = h.listener.ListenOptions().Detour
+	//nolint:staticcheck
+	metadata.InboundOptions = h.listener.ListenOptions().InboundOptions
 	h.logger.InfoContext(ctx, "inbound connection from ", metadata.Source)
 	(*Inbound)(h).NewConnectionEx(ctx, conn, metadata, onClose)
 }

protocol/vmess/inbound.go

@@ -219,6 +219,10 @@ func (h *inboundTransportHandler) NewConnectionEx(ctx context.Context, conn net.
 	var metadata adapter.InboundContext
 	metadata.Source = source
 	metadata.Destination = destination
+	//nolint:staticcheck
+	metadata.InboundDetour = h.listener.ListenOptions().Detour
+	//nolint:staticcheck
+	metadata.InboundOptions = h.listener.ListenOptions().InboundOptions
 	h.logger.InfoContext(ctx, "inbound connection from ", metadata.Source)
 	(*Inbound)(h).NewConnectionEx(ctx, conn, metadata, onClose)
 }

route/dns.go

@@ -2,15 +2,14 @@ package route
 
 import (
 	"context"
-	"errors"
 	"net"
 	"time"
 
 	"github.com/sagernet/sing-box/adapter"
 	C "github.com/sagernet/sing-box/constant"
 	dnsOutbound "github.com/sagernet/sing-box/protocol/dns"
+	R "github.com/sagernet/sing-box/route/rule"
 	"github.com/sagernet/sing-dns"
-	"github.com/sagernet/sing-tun"
 	"github.com/sagernet/sing/common/buf"
 	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
@@ -58,7 +57,7 @@ func (r *Router) hijackDNSPacket(ctx context.Context, conn N.PacketConn, packetB
 
 func ExchangeDNSPacket(ctx context.Context, router *Router, conn N.PacketConn, buffer *buf.Buffer, metadata adapter.InboundContext, destination M.Socksaddr) {
 	err := exchangeDNSPacket(ctx, router, conn, buffer, metadata, destination)
-	if err != nil && !errors.Is(err, tun.ErrDrop) && !E.IsClosedOrCanceled(err) {
+	if err != nil && !R.IsRejected(err) && !E.IsClosedOrCanceled(err) {
 		router.dnsLogger.ErrorContext(ctx, E.Cause(err, "process packet connection"))
 	}
 }

route/route.go

@@ -16,7 +16,7 @@ import (
 	"github.com/sagernet/sing-box/common/sniff"
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/option"
-	"github.com/sagernet/sing-box/route/rule"
+	R "github.com/sagernet/sing-box/route/rule"
 	"github.com/sagernet/sing-dns"
 	"github.com/sagernet/sing-mux"
 	"github.com/sagernet/sing-vmess"
@@ -51,7 +51,7 @@ func (r *Router) RouteConnectionEx(ctx context.Context, conn net.Conn, metadata
 	err := r.routeConnection(ctx, conn, metadata, onClose)
 	if err != nil {
 		N.CloseOnHandshakeFailure(conn, onClose, err)
-		if E.IsClosedOrCanceled(err) {
+		if E.IsClosedOrCanceled(err) || R.IsRejected(err) {
 			r.logger.DebugContext(ctx, "connection closed: ", err)
 		} else {
 			r.logger.ErrorContext(ctx, err)
@@ -101,7 +101,7 @@ func (r *Router) routeConnection(ctx context.Context, conn net.Conn, metadata ad
 	var selectedOutbound adapter.Outbound
 	if selectedRule != nil {
 		switch action := selectedRule.Action().(type) {
-		case *rule.RuleActionRoute:
+		case *R.RuleActionRoute:
 			var loaded bool
 			selectedOutbound, loaded = r.outbound.Outbound(action.Outbound)
 			if !loaded {
@@ -112,11 +112,11 @@ func (r *Router) routeConnection(ctx context.Context, conn net.Conn, metadata ad
 				buf.ReleaseMulti(buffers)
 				return E.New("TCP is not supported by outbound: ", selectedOutbound.Tag())
 			}
-		case *rule.RuleActionReject:
+		case *R.RuleActionReject:
 			buf.ReleaseMulti(buffers)
 			N.CloseOnHandshakeFailure(conn, onClose, action.Error(ctx))
 			return nil
-		case *rule.RuleActionHijackDNS:
+		case *R.RuleActionHijackDNS:
 			for _, buffer := range buffers {
 				conn = bufio.NewCachedConn(conn, buffer)
 			}
@@ -154,7 +154,7 @@ func (r *Router) RoutePacketConnection(ctx context.Context, conn N.PacketConn, m
 	}))
 	if err != nil {
 		conn.Close()
-		if E.IsClosedOrCanceled(err) {
+		if E.IsClosedOrCanceled(err) || R.IsRejected(err) {
 			r.logger.DebugContext(ctx, "connection closed: ", err)
 		} else {
 			r.logger.ErrorContext(ctx, err)
@@ -171,7 +171,7 @@ func (r *Router) RoutePacketConnectionEx(ctx context.Context, conn N.PacketConn,
 	err := r.routePacketConnection(ctx, conn, metadata, onClose)
 	if err != nil {
 		N.CloseOnHandshakeFailure(conn, onClose, err)
-		if E.IsClosedOrCanceled(err) {
+		if E.IsClosedOrCanceled(err) || R.IsRejected(err) {
 			r.logger.DebugContext(ctx, "connection closed: ", err)
 		} else {
 			r.logger.ErrorContext(ctx, err)
@@ -217,7 +217,7 @@ func (r *Router) routePacketConnection(ctx context.Context, conn N.PacketConn, m
 	var selectReturn bool
 	if selectedRule != nil {
 		switch action := selectedRule.Action().(type) {
-		case *rule.RuleActionRoute:
+		case *R.RuleActionRoute:
 			var loaded bool
 			selectedOutbound, loaded = r.outbound.Outbound(action.Outbound)
 			if !loaded {
@@ -228,11 +228,11 @@ func (r *Router) routePacketConnection(ctx context.Context, conn N.PacketConn, m
 				N.ReleaseMultiPacketBuffer(packetBuffers)
 				return E.New("UDP is not supported by outbound: ", selectedOutbound.Tag())
 			}
-		case *rule.RuleActionReject:
+		case *R.RuleActionReject:
 			N.ReleaseMultiPacketBuffer(packetBuffers)
 			N.CloseOnHandshakeFailure(conn, onClose, action.Error(ctx))
 			return nil
-		case *rule.RuleActionHijackDNS:
+		case *R.RuleActionHijackDNS:
 			r.hijackDNSPacket(ctx, conn, packetBuffers, metadata, onClose)
 			return nil
 		}
@@ -271,7 +271,7 @@ func (r *Router) PreMatch(metadata adapter.InboundContext) error {
 	if selectedRule == nil {
 		return nil
 	}
-	rejectAction, isReject := selectedRule.Action().(*rule.RuleActionReject)
+	rejectAction, isReject := selectedRule.Action().(*R.RuleActionReject)
 	if !isReject {
 		return nil
 	}
@@ -346,7 +346,7 @@ func (r *Router) matchRule(
 	//nolint:staticcheck
 	if metadata.InboundOptions != common.DefaultValue[option.InboundOptions]() {
 		if !preMatch && metadata.InboundOptions.SniffEnabled {
-			newBuffer, newPackerBuffers, newErr := r.actionSniff(ctx, metadata, &rule.RuleActionSniff{
+			newBuffer, newPackerBuffers, newErr := r.actionSniff(ctx, metadata, &R.RuleActionSniff{
 				OverrideDestination: metadata.InboundOptions.SniffOverrideDestination,
 				Timeout:             time.Duration(metadata.InboundOptions.SniffTimeout),
 			}, inputConn, inputPacketConn, nil)
@@ -361,7 +361,7 @@ func (r *Router) matchRule(
 			}
 		}
 		if dns.DomainStrategy(metadata.InboundOptions.DomainStrategy) != dns.DomainStrategyAsIS {
-			fatalErr = r.actionResolve(ctx, metadata, &rule.RuleActionResolve{
+			fatalErr = r.actionResolve(ctx, metadata, &R.RuleActionResolve{
 				Strategy: dns.DomainStrategy(metadata.InboundOptions.DomainStrategy),
 			})
 			if fatalErr != nil {
@@ -398,11 +398,11 @@ match:
 				}
 			}
 		}
-		var routeOptions *rule.RuleActionRouteOptions
+		var routeOptions *R.RuleActionRouteOptions
 		switch action := currentRule.Action().(type) {
-		case *rule.RuleActionRoute:
+		case *R.RuleActionRoute:
 			routeOptions = &action.RuleActionRouteOptions
-		case *rule.RuleActionRouteOptions:
+		case *R.RuleActionRouteOptions:
 			routeOptions = action
 		}
 		if routeOptions != nil {
@@ -448,7 +448,7 @@ match:
 			}
 		}
 		switch action := currentRule.Action().(type) {
-		case *rule.RuleActionSniff:
+		case *R.RuleActionSniff:
 			if !preMatch {
 				newBuffer, newPacketBuffers, newErr := r.actionSniff(ctx, metadata, action, inputConn, inputPacketConn, buffers)
 				if newErr != nil {
@@ -465,7 +465,7 @@ match:
 				selectedRuleIndex = currentRuleIndex
 				break match
 			}
-		case *rule.RuleActionResolve:
+		case *R.RuleActionResolve:
 			fatalErr = r.actionResolve(ctx, metadata, action)
 			if fatalErr != nil {
 				return
@@ -485,7 +485,7 @@ match:
 }
 
 func (r *Router) actionSniff(
-	ctx context.Context, metadata *adapter.InboundContext, action *rule.RuleActionSniff,
+	ctx context.Context, metadata *adapter.InboundContext, action *R.RuleActionSniff,
 	inputConn net.Conn, inputPacketConn N.PacketConn, inputBuffers []*buf.Buffer,
 ) (buffer *buf.Buffer, packetBuffers []*N.PacketBuffer, fatalErr error) {
 	if sniff.Skip(metadata) {
@@ -498,6 +498,9 @@ func (r *Router) actionSniff(
 	if inputConn != nil {
 		if len(action.StreamSniffers) == 0 && len(action.PacketSniffers) > 0 {
 			return
+		} else if metadata.SniffError != nil && !errors.Is(metadata.SniffError, sniff.ErrNeedMoreData) {
+			r.logger.DebugContext(ctx, "packet sniff skipped due to previous error: ", metadata.SniffError)
+			return
 		}
 		var streamSniffers []sniff.StreamSniffer
 		if len(action.StreamSniffers) > 0 {
@@ -522,6 +525,7 @@ func (r *Router) actionSniff(
 			action.Timeout,
 			streamSniffers...,
 		)
+		metadata.SniffError = err
 		if err == nil {
 			//goland:noinspection GoDeprecation
 			if action.OverrideDestination && M.IsDomainName(metadata.Domain) {
@@ -546,8 +550,8 @@ func (r *Router) actionSniff(
 	} else if inputPacketConn != nil {
 		if len(action.PacketSniffers) == 0 && len(action.StreamSniffers) > 0 {
 			return
-		} else if metadata.PacketSniffError != nil && !errors.Is(metadata.PacketSniffError, sniff.ErrNeedMoreData) {
+		} else if metadata.SniffError != nil && !errors.Is(metadata.SniffError, sniff.ErrNeedMoreData) {
-			r.logger.DebugContext(ctx, "packet sniff skipped due to previous error: ", metadata.PacketSniffError)
+			r.logger.DebugContext(ctx, "packet sniff skipped due to previous error: ", metadata.SniffError)
 			return
 		}
 		var packetSniffers []sniff.PacketSniffer
@@ -594,7 +598,7 @@ func (r *Router) actionSniff(
 					return
 				}
 			} else {
-				if len(packetBuffers) > 0 || metadata.PacketSniffError != nil {
+				if len(packetBuffers) > 0 || metadata.SniffError != nil {
 					err = sniff.PeekPacket(
 						ctx,
 						metadata,
@@ -614,7 +618,7 @@ func (r *Router) actionSniff(
 					Destination: destination,
 				}
 				packetBuffers = append(packetBuffers, packetBuffer)
-				metadata.PacketSniffError = err
+				metadata.SniffError = err
 				if errors.Is(err, sniff.ErrNeedMoreData) {
 					// TODO: replace with generic message when there are more multi-packet protocols
 					r.logger.DebugContext(ctx, "attempt to sniff fragmented QUIC client hello")
@@ -645,7 +649,7 @@ func (r *Router) actionSniff(
 	return
 }
 
-func (r *Router) actionResolve(ctx context.Context, metadata *adapter.InboundContext, action *rule.RuleActionResolve) error {
+func (r *Router) actionResolve(ctx context.Context, metadata *adapter.InboundContext, action *R.RuleActionResolve) error {
 	if metadata.Destination.IsFqdn() {
 		metadata.DNSServer = action.Server
 		addresses, err := r.Lookup(adapter.WithContext(ctx, metadata), metadata.Destination.Fqdn, action.Strategy)

route/route_dns.go

@@ -170,7 +170,7 @@ func (r *Router) Exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg, er
 							Question: []mDNS.Question{message.Question[0]},
 						}, nil
 					case C.RuleActionRejectMethodDrop:
-						return nil, tun.ErrDrop
+						return nil, &R.RejectedError{Cause: tun.ErrDrop}
 					}
 				}
 			}
@@ -289,7 +289,7 @@ func (r *Router) Lookup(ctx context.Context, domain string, strategy dns.DomainS
 					case C.RuleActionRejectMethodDefault:
 						return nil, nil
 					case C.RuleActionRejectMethodDrop:
-						return nil, tun.ErrDrop
+						return nil, &R.RejectedError{Cause: tun.ErrDrop}
 					}
 				}
 			}

route/rule/rule_action.go

@@ -2,6 +2,7 @@ package rule
 
 import (
 	"context"
+	"errors"
 	"net/netip"
 	"strings"
 	"sync"
@@ -250,6 +251,23 @@ func (r *RuleActionDirect) String() string {
 	return "direct" + r.description
 }
 
+type RejectedError struct {
+	Cause error
+}
+
+func (r *RejectedError) Error() string {
+	return "rejected"
+}
+
+func (r *RejectedError) Unwrap() error {
+	return r.Cause
+}
+
+func IsRejected(err error) bool {
+	var rejected *RejectedError
+	return errors.As(err, &rejected)
+}
+
 type RuleActionReject struct {
 	Method      string
 	NoDrop      bool
@@ -273,9 +291,9 @@ func (r *RuleActionReject) Error(ctx context.Context) error {
 	var returnErr error
 	switch r.Method {
 	case C.RuleActionRejectMethodDefault:
-		returnErr = syscall.ECONNREFUSED
+		returnErr = &RejectedError{syscall.ECONNREFUSED}
 	case C.RuleActionRejectMethodDrop:
-		return tun.ErrDrop
+		return &RejectedError{tun.ErrDrop}
 	default:
 		panic(F.ToString("unknown reject method: ", r.Method))
 	}
@@ -293,7 +311,7 @@ func (r *RuleActionReject) Error(ctx context.Context) error {
 		if ctx != nil {
 			r.logger.DebugContext(ctx, "dropped due to flooding")
 		}
-		return tun.ErrDrop
+		return &RejectedError{tun.ErrDrop}
 	}
 	return returnErr
 }

transport/v2rayhttp/conn.go

@@ -31,6 +31,9 @@ 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,
@@ -89,9 +92,6 @@ 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 {