v1.5.0

Bumps [github.com/lucas-clemente/quic-go](https://github.com/lucas-clemente/quic-go) from 0.23.0 to 0.24.0.
- [Release notes](https://github.com/lucas-clemente/quic-go/releases)
- [Changelog](https://github.com/lucas-clemente/quic-go/blob/master/Changelog.md)
- [Commits](https://github.com/lucas-clemente/quic-go/compare/v0.23.0...v0.24.0)

---
updated-dependencies:
- dependency-name: github.com/lucas-clemente/quic-go
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/build/friendly-filenames.json

@@ -29,5 +29,6 @@
   "openbsd-arm7": { "friendlyName": "openbsd-arm32-v7a" },
   "windows-386": { "friendlyName": "windows-32" },
   "windows-amd64": { "friendlyName": "windows-64" },
+  "windows-arm64": { "friendlyName": "windows-arm64-v8a" },
   "windows-arm7": { "friendlyName": "windows-arm32-v7a" }
-}
+}

.github/dependabot.yml

@@ -0,0 +1,11 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "gomod"
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "daily"

.github/workflows/release.yml

@@ -52,7 +52,9 @@ jobs:
           - goos: android
             goarch: arm64
           # END Android ARM 8
-          # Windows ARM 7
+          # Windows ARM
+          - goos: windows
+            goarch: arm64
           - goos: windows
             goarch: arm
             goarm: 7
@@ -121,7 +123,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v2
         with:
-          go-version: ^1.16
+          go-version: ^1.17.2
 
       - name: Get project dependencies
         run: go mod download

.github/workflows/test.yml

@@ -28,7 +28,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v2
         with:
-          go-version: ^1.16
+          go-version: ^1.17.2
       - name: Checkout codebase
         uses: actions/checkout@v2
 

README.md

@@ -40,13 +40,16 @@
   - [luci-app-xray](https://github.com/yichya/luci-app-xray) ([openwrt-xray](https://github.com/yichya/openwrt-xray))
 - Windows
   - [v2rayN](https://github.com/2dust/v2rayN)
-  - [Qv2ray](https://github.com/Qv2ray/Qv2ray)
+  - [Qv2ray](https://github.com/Qv2ray/Qv2ray)  (This project had been archived and currently inactive)
   - [Netch (NetFilter & TUN/TAP)](https://github.com/NetchX/Netch)
 - Android
   - [v2rayNG](https://github.com/2dust/v2rayNG)
+  - [AnXray](https://github.com/XTLS/AnXray)
   - [Kitsunebi](https://github.com/rurirei/Kitsunebi/tree/release_xtls)
-- iOS / Mac
+- iOS & macOS (with M1 chip)
   - [Shadowrocket](https://apps.apple.com/app/shadowrocket/id932747118)
+- macOS (Intel chip & M1 chip)
+  - [Qv2ray](https://github.com/Qv2ray/Qv2ray) (This project had been archived and currently inactive)
 
 ## Credits
 

app/commander/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
-// 	protoc        v3.14.0
+// 	protoc-gen-go v1.27.1
+// 	protoc        v3.18.0
 // source: app/commander/config.proto
 
 package commander
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	serial "github.com/xtls/xray-core/common/serial"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 // Config is the settings for Commander.
 type Config struct {
 	state         protoimpl.MessageState

app/commander/service.go

@@ -3,9 +3,10 @@ package commander
 import (
 	"context"
 
-	"github.com/xtls/xray-core/common"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/reflection"
+
+	"github.com/xtls/xray-core/common"
 )
 
 // Service is a Commander service.

app/dispatcher/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
-// 	protoc        v3.14.0
+// 	protoc-gen-go v1.27.1
+// 	protoc        v3.18.0
 // source: app/dispatcher/config.proto
 
 package dispatcher
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type SessionConfig struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

app/dispatcher/default.go

@@ -25,9 +25,7 @@ import (
 	"github.com/xtls/xray-core/transport/pipe"
 )
 
-var (
-	errSniffingTimeout = newError("timeout on sniffing")
-)
+var errSniffingTimeout = newError("timeout on sniffing")
 
 type cachedReader struct {
 	sync.Mutex
@@ -178,8 +176,8 @@ func (d *DefaultDispatcher) getLink(ctx context.Context) (*transport.Link, *tran
 
 func shouldOverride(ctx context.Context, result SniffResult, request session.SniffingRequest, destination net.Destination) bool {
 	domain := result.Domain()
-	if request.ExcludedDomainMatcher != nil {
-		if request.ExcludedDomainMatcher.ApplyDomain(domain) {
+	for _, d := range request.ExcludeForDomain {
+		if strings.ToLower(domain) == d {
 			return false
 		}
 	}
@@ -195,26 +193,21 @@ func shouldOverride(ctx context.Context, result SniffResult, request session.Sni
 		if strings.HasPrefix(protocolString, p) {
 			return true
 		}
-		if fakeDNSEngine != nil && protocolString != "bittorrent" && p == "fakedns" &&
-			destination.Address.Family().IsIP() && fakeDNSEngine.GetFakeIPRange().Contains(destination.Address.IP()) {
-			newError("Using sniffer ", protocolString, " since the fake DNS missed").WriteToLog(session.ExportIDToError(ctx))
-			return true
+		if fkr0, ok := fakeDNSEngine.(dns.FakeDNSEngineRev0); ok && protocolString != "bittorrent" && p == "fakedns" &&
+			destination.Address.Family().IsIP() && fkr0.IsIPInIPPool(destination.Address) {
+				newError("Using sniffer ", protocolString, " since the fake DNS missed").WriteToLog(session.ExportIDToError(ctx))
+				return true
+		}
+		if resultSubset, ok := result.(SnifferIsProtoSubsetOf); ok {
+			if resultSubset.IsProtoSubsetOf(p) {
+				return true
+			}
 		}
 	}
 
 	return false
 }
 
-func canSniff(ctx context.Context, req session.SniffingRequest, destination net.Destination) bool {
-	if destination.Address.Family().IsIP() && req.ExcludedIPMatcher != nil {
-		if req.ExcludedIPMatcher.MatchIP(destination.Address.IP()) {
-			return false
-		}
-	}
-
-	return true
-}
-
 // Dispatch implements routing.Dispatcher.
 func (d *DefaultDispatcher) Dispatch(ctx context.Context, destination net.Destination) (*transport.Link, error) {
 	if !destination.IsValid() {
@@ -232,12 +225,6 @@ func (d *DefaultDispatcher) Dispatch(ctx context.Context, destination net.Destin
 		ctx = session.ContextWithContent(ctx, content)
 	}
 	sniffingRequest := content.SniffingRequest
-
-	if !canSniff(ctx, sniffingRequest, destination) {
-		newError("skip sniffing for ip ", destination.Address.String()).AtDebug().WriteToLog()
-		sniffingRequest.Enabled = false
-	}
-
 	switch {
 	case !sniffingRequest.Enabled:
 		go d.routedDispatch(ctx, outbound, destination)
@@ -325,18 +312,14 @@ func sniffer(ctx context.Context, cReader *cachedReader, metadataOnly bool) (Sni
 func (d *DefaultDispatcher) routedDispatch(ctx context.Context, link *transport.Link, destination net.Destination) {
 	var handler outbound.Handler
 
-	routingLink := routing_session.AsRoutingContext(ctx)
-	inTag := routingLink.GetInboundTag()
-	isPickRoute := false
 	if d.router != nil {
-		if route, err := d.router.PickRoute(routingLink); err == nil {
-			outTag := route.GetOutboundTag()
-			isPickRoute = true
-			if h := d.ohm.GetHandler(outTag); h != nil {
-				newError("taking detour [", outTag, "] for [", destination, "]").WriteToLog(session.ExportIDToError(ctx))
+		if route, err := d.router.PickRoute(routing_session.AsRoutingContext(ctx)); err == nil {
+			tag := route.GetOutboundTag()
+			if h := d.ohm.GetHandler(tag); h != nil {
+				newError("taking detour [", tag, "] for [", destination, "]").WriteToLog(session.ExportIDToError(ctx))
 				handler = h
 			} else {
-				newError("non existing outTag: ", outTag).AtWarning().WriteToLog(session.ExportIDToError(ctx))
+				newError("non existing outTag: ", tag).AtWarning().WriteToLog(session.ExportIDToError(ctx))
 			}
 		} else {
 			newError("default route for ", destination).WriteToLog(session.ExportIDToError(ctx))
@@ -356,19 +339,7 @@ func (d *DefaultDispatcher) routedDispatch(ctx context.Context, link *transport.
 
 	if accessMessage := log.AccessMessageFromContext(ctx); accessMessage != nil {
 		if tag := handler.Tag(); tag != "" {
-			if isPickRoute {
-				if inTag != "" {
-					accessMessage.Detour = inTag + " -> " + tag
-				} else {
-					accessMessage.Detour = tag
-				}
-			} else {
-				if inTag != "" {
-					accessMessage.Detour = inTag + " >> " + tag
-				} else {
-					accessMessage.Detour = tag
-				}
-			}
+			accessMessage.Detour = tag
 		}
 		log.Record(accessMessage)
 	}

app/dispatcher/fakednssniffer.go

@@ -2,6 +2,7 @@ package dispatcher
 
 import (
 	"context"
+	"strings"
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/net"
@@ -32,6 +33,15 @@ func newFakeDNSSniffer(ctx context.Context) (protocolSnifferWithMetadata, error)
 				return &fakeDNSSniffResult{domainName: domainFromFakeDNS}, nil
 			}
 		}
+
+		if ipAddressInRangeValueI := ctx.Value(ipAddressInRange); ipAddressInRangeValueI != nil {
+			ipAddressInRangeValue := ipAddressInRangeValueI.(*ipAddressInRangeOpt)
+			if fkr0, ok := fakeDNSEngine.(dns.FakeDNSEngineRev0); ok {
+				inPool := fkr0.IsIPInIPPool(Target.Address)
+				ipAddressInRangeValue.addressInRange = &inPool
+			}
+		}
+
 		return nil, common.ErrNoClue
 	}, metadataSniffer: true}, nil
 }
@@ -47,3 +57,61 @@ func (fakeDNSSniffResult) Protocol() string {
 func (f fakeDNSSniffResult) Domain() string {
 	return f.domainName
 }
+
+type fakeDNSExtraOpts int
+
+const ipAddressInRange fakeDNSExtraOpts = 1
+
+type ipAddressInRangeOpt struct {
+	addressInRange *bool
+}
+
+type DNSThenOthersSniffResult struct {
+	domainName           string
+	protocolOriginalName string
+}
+
+func (f DNSThenOthersSniffResult) IsProtoSubsetOf(protocolName string) bool {
+	return strings.HasPrefix(protocolName, f.protocolOriginalName)
+}
+
+func (DNSThenOthersSniffResult) Protocol() string {
+	return "fakedns+others"
+}
+
+func (f DNSThenOthersSniffResult) Domain() string {
+	return f.domainName
+}
+
+func newFakeDNSThenOthers(ctx context.Context, fakeDNSSniffer protocolSnifferWithMetadata, others []protocolSnifferWithMetadata) (
+	protocolSnifferWithMetadata, error) { // nolint: unparam
+	// ctx may be used in the future
+	_ = ctx
+	return protocolSnifferWithMetadata{
+		protocolSniffer: func(ctx context.Context, bytes []byte) (SniffResult, error) {
+			ipAddressInRangeValue := &ipAddressInRangeOpt{}
+			ctx = context.WithValue(ctx, ipAddressInRange, ipAddressInRangeValue)
+			result, err := fakeDNSSniffer.protocolSniffer(ctx, bytes)
+			if err == nil {
+				return result, nil
+			}
+			if ipAddressInRangeValue.addressInRange != nil {
+				if *ipAddressInRangeValue.addressInRange {
+					for _, v := range others {
+						if v.metadataSniffer || bytes != nil {
+							if result, err := v.protocolSniffer(ctx, bytes); err == nil {
+								return DNSThenOthersSniffResult{domainName: result.Domain(), protocolOriginalName: result.Protocol()}, nil
+							}
+						}
+					}
+					return nil, common.ErrNoClue
+				}
+				newError("ip address not in fake dns range, return as is").AtDebug().WriteToLog()
+				return nil, common.ErrNoClue
+			}
+			newError("fake dns sniffer did not set address in range option, assume false.").AtWarning().WriteToLog()
+			return nil, common.ErrNoClue
+		},
+		metadataSniffer: false,
+	}, nil
+}

app/dispatcher/sniffer.go

@@ -37,7 +37,12 @@ func NewSniffer(ctx context.Context) *Sniffer {
 		},
 	}
 	if sniffer, err := newFakeDNSSniffer(ctx); err == nil {
+		others := ret.sniffer
 		ret.sniffer = append(ret.sniffer, sniffer)
+		fakeDNSThenOthers, err := newFakeDNSThenOthers(ctx, sniffer, others)
+		if err == nil {
+			ret.sniffer = append([]protocolSnifferWithMetadata{fakeDNSThenOthers}, ret.sniffer...)
+		}
 	}
 	return ret
 }
@@ -121,3 +126,7 @@ func (c compositeResult) ProtocolForDomainResult() string {
 type SnifferResultComposite interface {
 	ProtocolForDomainResult() string
 }
+
+type SnifferIsProtoSubsetOf interface {
+	IsProtoSubsetOf(protocolName string) bool
+}

app/dns/config.go

@@ -1,32 +1,31 @@
 package dns
 
 import (
-	dm "github.com/xtls/xray-core/common/matcher/domain"
-	"github.com/xtls/xray-core/common/matcher/str"
 	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/strmatcher"
 	"github.com/xtls/xray-core/common/uuid"
 )
 
-var typeMap = map[dm.MatchingType]str.Type{
-	dm.MatchingType_Keyword:   str.Substr,
-	dm.MatchingType_Regex:     str.Regex,
-	dm.MatchingType_Subdomain: str.Domain,
-	dm.MatchingType_Full:      str.Full,
+var typeMap = map[DomainMatchingType]strmatcher.Type{
+	DomainMatchingType_Full:      strmatcher.Full,
+	DomainMatchingType_Subdomain: strmatcher.Domain,
+	DomainMatchingType_Keyword:   strmatcher.Substr,
+	DomainMatchingType_Regex:     strmatcher.Regex,
 }
 
 // References:
 // https://www.iana.org/assignments/special-use-domain-names/special-use-domain-names.xhtml
 // https://unix.stackexchange.com/questions/92441/whats-the-difference-between-local-home-and-lan
-var localTLDsAndDotlessDomains = []*dm.Domain{
-	{Type: dm.MatchingType_Regex, Value: "^[^.]+$"}, // This will only match domains without any dot
-	{Type: dm.MatchingType_Subdomain, Value: "local"},
-	{Type: dm.MatchingType_Subdomain, Value: "localdomain"},
-	{Type: dm.MatchingType_Subdomain, Value: "localhost"},
-	{Type: dm.MatchingType_Subdomain, Value: "lan"},
-	{Type: dm.MatchingType_Subdomain, Value: "home.arpa"},
-	{Type: dm.MatchingType_Subdomain, Value: "example"},
-	{Type: dm.MatchingType_Subdomain, Value: "invalid"},
-	{Type: dm.MatchingType_Subdomain, Value: "test"},
+var localTLDsAndDotlessDomains = []*NameServer_PriorityDomain{
+	{Type: DomainMatchingType_Regex, Domain: "^[^.]+$"}, // This will only match domains without any dot
+	{Type: DomainMatchingType_Subdomain, Domain: "local"},
+	{Type: DomainMatchingType_Subdomain, Domain: "localdomain"},
+	{Type: DomainMatchingType_Subdomain, Domain: "localhost"},
+	{Type: DomainMatchingType_Subdomain, Domain: "lan"},
+	{Type: DomainMatchingType_Subdomain, Domain: "home.arpa"},
+	{Type: DomainMatchingType_Subdomain, Domain: "example"},
+	{Type: DomainMatchingType_Subdomain, Domain: "invalid"},
+	{Type: DomainMatchingType_Subdomain, Domain: "test"},
 }
 
 var localTLDsAndDotlessDomainsRule = &NameServer_OriginalRule{
@@ -34,7 +33,7 @@ var localTLDsAndDotlessDomainsRule = &NameServer_OriginalRule{
 	Size: uint32(len(localTLDsAndDotlessDomains)),
 }
 
-func toStrMatcher(t dm.MatchingType, domain string) (str.Matcher, error) {
+func toStrMatcher(t DomainMatchingType, domain string) (strmatcher.Matcher, error) {
 	strMType, f := typeMap[t]
 	if !f {
 		return nil, newError("unknown mapping type", t).AtWarning()

app/dns/config.pb.go

@@ -1,14 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.8
+// 	protoc-gen-go v1.27.1
+// 	protoc        v3.18.0
 // source: app/dns/config.proto
 
 package dns
 
 import (
-	domain "github.com/xtls/xray-core/common/matcher/domain"
-	geoip "github.com/xtls/xray-core/common/matcher/geoip"
+	router "github.com/xtls/xray-core/app/router"
 	net "github.com/xtls/xray-core/common/net"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -23,6 +22,58 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+type DomainMatchingType int32
+
+const (
+	DomainMatchingType_Full      DomainMatchingType = 0
+	DomainMatchingType_Subdomain DomainMatchingType = 1
+	DomainMatchingType_Keyword   DomainMatchingType = 2
+	DomainMatchingType_Regex     DomainMatchingType = 3
+)
+
+// Enum value maps for DomainMatchingType.
+var (
+	DomainMatchingType_name = map[int32]string{
+		0: "Full",
+		1: "Subdomain",
+		2: "Keyword",
+		3: "Regex",
+	}
+	DomainMatchingType_value = map[string]int32{
+		"Full":      0,
+		"Subdomain": 1,
+		"Keyword":   2,
+		"Regex":     3,
+	}
+)
+
+func (x DomainMatchingType) Enum() *DomainMatchingType {
+	p := new(DomainMatchingType)
+	*p = x
+	return p
+}
+
+func (x DomainMatchingType) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (DomainMatchingType) Descriptor() protoreflect.EnumDescriptor {
+	return file_app_dns_config_proto_enumTypes[0].Descriptor()
+}
+
+func (DomainMatchingType) Type() protoreflect.EnumType {
+	return &file_app_dns_config_proto_enumTypes[0]
+}
+
+func (x DomainMatchingType) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Use DomainMatchingType.Descriptor instead.
+func (DomainMatchingType) EnumDescriptor() ([]byte, []int) {
+	return file_app_dns_config_proto_rawDescGZIP(), []int{0}
+}
+
 type QueryStrategy int32
 
 const (
@@ -56,11 +107,11 @@ func (x QueryStrategy) String() string {
 }
 
 func (QueryStrategy) Descriptor() protoreflect.EnumDescriptor {
-	return file_app_dns_config_proto_enumTypes[0].Descriptor()
+	return file_app_dns_config_proto_enumTypes[1].Descriptor()
 }
 
 func (QueryStrategy) Type() protoreflect.EnumType {
-	return &file_app_dns_config_proto_enumTypes[0]
+	return &file_app_dns_config_proto_enumTypes[1]
 }
 
 func (x QueryStrategy) Number() protoreflect.EnumNumber {
@@ -69,55 +120,6 @@ func (x QueryStrategy) Number() protoreflect.EnumNumber {
 
 // Deprecated: Use QueryStrategy.Descriptor instead.
 func (QueryStrategy) EnumDescriptor() ([]byte, []int) {
-	return file_app_dns_config_proto_rawDescGZIP(), []int{0}
-}
-
-type CacheStrategy int32
-
-const (
-	CacheStrategy_Cache_ALL     CacheStrategy = 0
-	CacheStrategy_Cache_NOERROR CacheStrategy = 1
-	CacheStrategy_Cache_DISABLE CacheStrategy = 2
-)
-
-// Enum value maps for CacheStrategy.
-var (
-	CacheStrategy_name = map[int32]string{
-		0: "Cache_ALL",
-		1: "Cache_NOERROR",
-		2: "Cache_DISABLE",
-	}
-	CacheStrategy_value = map[string]int32{
-		"Cache_ALL":     0,
-		"Cache_NOERROR": 1,
-		"Cache_DISABLE": 2,
-	}
-)
-
-func (x CacheStrategy) Enum() *CacheStrategy {
-	p := new(CacheStrategy)
-	*p = x
-	return p
-}
-
-func (x CacheStrategy) String() string {
-	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
-}
-
-func (CacheStrategy) Descriptor() protoreflect.EnumDescriptor {
-	return file_app_dns_config_proto_enumTypes[1].Descriptor()
-}
-
-func (CacheStrategy) Type() protoreflect.EnumType {
-	return &file_app_dns_config_proto_enumTypes[1]
-}
-
-func (x CacheStrategy) Number() protoreflect.EnumNumber {
-	return protoreflect.EnumNumber(x)
-}
-
-// Deprecated: Use CacheStrategy.Descriptor instead.
-func (CacheStrategy) EnumDescriptor() ([]byte, []int) {
 	return file_app_dns_config_proto_rawDescGZIP(), []int{1}
 }
 
@@ -126,12 +128,12 @@ type NameServer struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Address           *net.Endpoint              `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"`
-	ClientIp          []byte                     `protobuf:"bytes,5,opt,name=client_ip,json=clientIp,proto3" json:"client_ip,omitempty"`
-	SkipFallback      bool                       `protobuf:"varint,6,opt,name=skipFallback,proto3" json:"skipFallback,omitempty"`
-	PrioritizedDomain []*domain.Domain           `protobuf:"bytes,2,rep,name=prioritized_domain,json=prioritizedDomain,proto3" json:"prioritized_domain,omitempty"`
-	Geoip             []*geoip.GeoIP             `protobuf:"bytes,3,rep,name=geoip,proto3" json:"geoip,omitempty"`
-	OriginalRules     []*NameServer_OriginalRule `protobuf:"bytes,4,rep,name=original_rules,json=originalRules,proto3" json:"original_rules,omitempty"`
+	Address           *net.Endpoint                `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"`
+	ClientIp          []byte                       `protobuf:"bytes,5,opt,name=client_ip,json=clientIp,proto3" json:"client_ip,omitempty"`
+	SkipFallback      bool                         `protobuf:"varint,6,opt,name=skipFallback,proto3" json:"skipFallback,omitempty"`
+	PrioritizedDomain []*NameServer_PriorityDomain `protobuf:"bytes,2,rep,name=prioritized_domain,json=prioritizedDomain,proto3" json:"prioritized_domain,omitempty"`
+	Geoip             []*router.GeoIP              `protobuf:"bytes,3,rep,name=geoip,proto3" json:"geoip,omitempty"`
+	OriginalRules     []*NameServer_OriginalRule   `protobuf:"bytes,4,rep,name=original_rules,json=originalRules,proto3" json:"original_rules,omitempty"`
 }
 
 func (x *NameServer) Reset() {
@@ -187,14 +189,14 @@ func (x *NameServer) GetSkipFallback() bool {
 	return false
 }
 
-func (x *NameServer) GetPrioritizedDomain() []*domain.Domain {
+func (x *NameServer) GetPrioritizedDomain() []*NameServer_PriorityDomain {
 	if x != nil {
 		return x.PrioritizedDomain
 	}
 	return nil
 }
 
-func (x *NameServer) GetGeoip() []*geoip.GeoIP {
+func (x *NameServer) GetGeoip() []*router.GeoIP {
 	if x != nil {
 		return x.Geoip
 	}
@@ -233,9 +235,10 @@ type Config struct {
 	// Tag is the inbound tag of DNS client.
 	Tag string `protobuf:"bytes,6,opt,name=tag,proto3" json:"tag,omitempty"`
 	// DisableCache disables DNS cache
-	CacheStrategy   CacheStrategy `protobuf:"varint,8,opt,name=cache_strategy,json=cacheStrategy,proto3,enum=xray.app.dns.CacheStrategy" json:"cache_strategy,omitempty"`
-	QueryStrategy   QueryStrategy `protobuf:"varint,9,opt,name=query_strategy,json=queryStrategy,proto3,enum=xray.app.dns.QueryStrategy" json:"query_strategy,omitempty"`
-	DisableFallback bool          `protobuf:"varint,10,opt,name=disableFallback,proto3" json:"disableFallback,omitempty"`
+	DisableCache           bool          `protobuf:"varint,8,opt,name=disableCache,proto3" json:"disableCache,omitempty"`
+	QueryStrategy          QueryStrategy `protobuf:"varint,9,opt,name=query_strategy,json=queryStrategy,proto3,enum=xray.app.dns.QueryStrategy" json:"query_strategy,omitempty"`
+	DisableFallback        bool          `protobuf:"varint,10,opt,name=disableFallback,proto3" json:"disableFallback,omitempty"`
+	DisableFallbackIfMatch bool          `protobuf:"varint,11,opt,name=disableFallbackIfMatch,proto3" json:"disableFallbackIfMatch,omitempty"`
 }
 
 func (x *Config) Reset() {
@@ -314,11 +317,11 @@ func (x *Config) GetTag() string {
 	return ""
 }
 
-func (x *Config) GetCacheStrategy() CacheStrategy {
+func (x *Config) GetDisableCache() bool {
 	if x != nil {
-		return x.CacheStrategy
+		return x.DisableCache
 	}
-	return CacheStrategy_Cache_ALL
+	return false
 }
 
 func (x *Config) GetQueryStrategy() QueryStrategy {
@@ -335,6 +338,68 @@ func (x *Config) GetDisableFallback() bool {
 	return false
 }
 
+func (x *Config) GetDisableFallbackIfMatch() bool {
+	if x != nil {
+		return x.DisableFallbackIfMatch
+	}
+	return false
+}
+
+type NameServer_PriorityDomain struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Type   DomainMatchingType `protobuf:"varint,1,opt,name=type,proto3,enum=xray.app.dns.DomainMatchingType" json:"type,omitempty"`
+	Domain string             `protobuf:"bytes,2,opt,name=domain,proto3" json:"domain,omitempty"`
+}
+
+func (x *NameServer_PriorityDomain) Reset() {
+	*x = NameServer_PriorityDomain{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_app_dns_config_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *NameServer_PriorityDomain) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*NameServer_PriorityDomain) ProtoMessage() {}
+
+func (x *NameServer_PriorityDomain) ProtoReflect() protoreflect.Message {
+	mi := &file_app_dns_config_proto_msgTypes[2]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use NameServer_PriorityDomain.ProtoReflect.Descriptor instead.
+func (*NameServer_PriorityDomain) Descriptor() ([]byte, []int) {
+	return file_app_dns_config_proto_rawDescGZIP(), []int{0, 0}
+}
+
+func (x *NameServer_PriorityDomain) GetType() DomainMatchingType {
+	if x != nil {
+		return x.Type
+	}
+	return DomainMatchingType_Full
+}
+
+func (x *NameServer_PriorityDomain) GetDomain() string {
+	if x != nil {
+		return x.Domain
+	}
+	return ""
+}
+
 type NameServer_OriginalRule struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -347,7 +412,7 @@ type NameServer_OriginalRule struct {
 func (x *NameServer_OriginalRule) Reset() {
 	*x = NameServer_OriginalRule{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_app_dns_config_proto_msgTypes[2]
+		mi := &file_app_dns_config_proto_msgTypes[3]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -360,7 +425,7 @@ func (x *NameServer_OriginalRule) String() string {
 func (*NameServer_OriginalRule) ProtoMessage() {}
 
 func (x *NameServer_OriginalRule) ProtoReflect() protoreflect.Message {
-	mi := &file_app_dns_config_proto_msgTypes[2]
+	mi := &file_app_dns_config_proto_msgTypes[3]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -373,7 +438,7 @@ func (x *NameServer_OriginalRule) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use NameServer_OriginalRule.ProtoReflect.Descriptor instead.
 func (*NameServer_OriginalRule) Descriptor() ([]byte, []int) {
-	return file_app_dns_config_proto_rawDescGZIP(), []int{0, 0}
+	return file_app_dns_config_proto_rawDescGZIP(), []int{0, 1}
 }
 
 func (x *NameServer_OriginalRule) GetRule() string {
@@ -395,9 +460,9 @@ type Config_HostMapping struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Type   domain.MatchingType `protobuf:"varint,1,opt,name=type,proto3,enum=xray.common.matcher.domain.MatchingType" json:"type,omitempty"`
-	Domain string              `protobuf:"bytes,2,opt,name=domain,proto3" json:"domain,omitempty"`
-	Ip     [][]byte            `protobuf:"bytes,3,rep,name=ip,proto3" json:"ip,omitempty"`
+	Type   DomainMatchingType `protobuf:"varint,1,opt,name=type,proto3,enum=xray.app.dns.DomainMatchingType" json:"type,omitempty"`
+	Domain string             `protobuf:"bytes,2,opt,name=domain,proto3" json:"domain,omitempty"`
+	Ip     [][]byte           `protobuf:"bytes,3,rep,name=ip,proto3" json:"ip,omitempty"`
 	// ProxiedDomain indicates the mapped domain has the same IP address on this
 	// domain. Xray will use this domain for IP queries.
 	ProxiedDomain string `protobuf:"bytes,4,opt,name=proxied_domain,json=proxiedDomain,proto3" json:"proxied_domain,omitempty"`
@@ -406,7 +471,7 @@ type Config_HostMapping struct {
 func (x *Config_HostMapping) Reset() {
 	*x = Config_HostMapping{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_app_dns_config_proto_msgTypes[4]
+		mi := &file_app_dns_config_proto_msgTypes[5]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -419,7 +484,7 @@ func (x *Config_HostMapping) String() string {
 func (*Config_HostMapping) ProtoMessage() {}
 
 func (x *Config_HostMapping) ProtoReflect() protoreflect.Message {
-	mi := &file_app_dns_config_proto_msgTypes[4]
+	mi := &file_app_dns_config_proto_msgTypes[5]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -435,11 +500,11 @@ func (*Config_HostMapping) Descriptor() ([]byte, []int) {
 	return file_app_dns_config_proto_rawDescGZIP(), []int{1, 1}
 }
 
-func (x *Config_HostMapping) GetType() domain.MatchingType {
+func (x *Config_HostMapping) GetType() DomainMatchingType {
 	if x != nil {
 		return x.Type
 	}
-	return domain.MatchingType_Full
+	return DomainMatchingType_Full
 }
 
 func (x *Config_HostMapping) GetDomain() string {
@@ -471,96 +536,100 @@ var file_app_dns_config_proto_rawDesc = []byte{
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+	0x5f, 0x49, 0x50, 0x36, 0x10, 0x02, 0x42, 0x46, 0x0a, 0x10, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72,
+	0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x64, 0x6e, 0x73, 0x50, 0x01, 0x5a, 0x21, 0x67, 0x69,
+	0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72,
+	0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x61, 0x70, 0x70, 0x2f, 0x64, 0x6e, 0x73, 0xaa,
+	0x02, 0x0c, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x44, 0x6e, 0x73, 0x62, 0x06,
+	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -576,34 +645,33 @@ func file_app_dns_config_proto_rawDescGZIP() []byte {
 }
 
 var file_app_dns_config_proto_enumTypes = make([]protoimpl.EnumInfo, 2)
-var file_app_dns_config_proto_msgTypes = make([]protoimpl.MessageInfo, 5)
+var file_app_dns_config_proto_msgTypes = make([]protoimpl.MessageInfo, 6)
 var file_app_dns_config_proto_goTypes = []interface{}{
-	(QueryStrategy)(0),              // 0: xray.app.dns.QueryStrategy
-	(CacheStrategy)(0),              // 1: xray.app.dns.CacheStrategy
-	(*NameServer)(nil),              // 2: xray.app.dns.NameServer
-	(*Config)(nil),                  // 3: xray.app.dns.Config
-	(*NameServer_OriginalRule)(nil), // 4: xray.app.dns.NameServer.OriginalRule
-	nil,                             // 5: xray.app.dns.Config.HostsEntry
-	(*Config_HostMapping)(nil),      // 6: xray.app.dns.Config.HostMapping
-	(*net.Endpoint)(nil),            // 7: xray.common.net.Endpoint
-	(*domain.Domain)(nil),           // 8: xray.common.matcher.domain.Domain
-	(*geoip.GeoIP)(nil),             // 9: xray.common.matcher.geoip.GeoIP
-	(*net.IPOrDomain)(nil),          // 10: xray.common.net.IPOrDomain
-	(domain.MatchingType)(0),        // 11: xray.common.matcher.domain.MatchingType
+	(DomainMatchingType)(0),           // 0: xray.app.dns.DomainMatchingType
+	(QueryStrategy)(0),                // 1: xray.app.dns.QueryStrategy
+	(*NameServer)(nil),                // 2: xray.app.dns.NameServer
+	(*Config)(nil),                    // 3: xray.app.dns.Config
+	(*NameServer_PriorityDomain)(nil), // 4: xray.app.dns.NameServer.PriorityDomain
+	(*NameServer_OriginalRule)(nil),   // 5: xray.app.dns.NameServer.OriginalRule
+	nil,                               // 6: xray.app.dns.Config.HostsEntry
+	(*Config_HostMapping)(nil),        // 7: xray.app.dns.Config.HostMapping
+	(*net.Endpoint)(nil),              // 8: xray.common.net.Endpoint
+	(*router.GeoIP)(nil),              // 9: xray.app.router.GeoIP
+	(*net.IPOrDomain)(nil),            // 10: xray.common.net.IPOrDomain
 }
 var file_app_dns_config_proto_depIdxs = []int32{
-	7,  // 0: xray.app.dns.NameServer.address:type_name -> xray.common.net.Endpoint
-	8,  // 1: xray.app.dns.NameServer.prioritized_domain:type_name -> xray.common.matcher.domain.Domain
-	9,  // 2: xray.app.dns.NameServer.geoip:type_name -> xray.common.matcher.geoip.GeoIP
-	4,  // 3: xray.app.dns.NameServer.original_rules:type_name -> xray.app.dns.NameServer.OriginalRule
-	7,  // 4: xray.app.dns.Config.NameServers:type_name -> xray.common.net.Endpoint
+	8,  // 0: xray.app.dns.NameServer.address:type_name -> xray.common.net.Endpoint
+	4,  // 1: xray.app.dns.NameServer.prioritized_domain:type_name -> xray.app.dns.NameServer.PriorityDomain
+	9,  // 2: xray.app.dns.NameServer.geoip:type_name -> xray.app.router.GeoIP
+	5,  // 3: xray.app.dns.NameServer.original_rules:type_name -> xray.app.dns.NameServer.OriginalRule
+	8,  // 4: xray.app.dns.Config.NameServers:type_name -> xray.common.net.Endpoint
 	2,  // 5: xray.app.dns.Config.name_server:type_name -> xray.app.dns.NameServer
-	5,  // 6: xray.app.dns.Config.Hosts:type_name -> xray.app.dns.Config.HostsEntry
-	6,  // 7: xray.app.dns.Config.static_hosts:type_name -> xray.app.dns.Config.HostMapping
-	1,  // 8: xray.app.dns.Config.cache_strategy:type_name -> xray.app.dns.CacheStrategy
-	0,  // 9: xray.app.dns.Config.query_strategy:type_name -> xray.app.dns.QueryStrategy
+	6,  // 6: xray.app.dns.Config.Hosts:type_name -> xray.app.dns.Config.HostsEntry
+	7,  // 7: xray.app.dns.Config.static_hosts:type_name -> xray.app.dns.Config.HostMapping
+	1,  // 8: xray.app.dns.Config.query_strategy:type_name -> xray.app.dns.QueryStrategy
+	0,  // 9: xray.app.dns.NameServer.PriorityDomain.type:type_name -> xray.app.dns.DomainMatchingType
 	10, // 10: xray.app.dns.Config.HostsEntry.value:type_name -> xray.common.net.IPOrDomain
-	11, // 11: xray.app.dns.Config.HostMapping.type:type_name -> xray.common.matcher.domain.MatchingType
+	0,  // 11: xray.app.dns.Config.HostMapping.type:type_name -> xray.app.dns.DomainMatchingType
 	12, // [12:12] is the sub-list for method output_type
 	12, // [12:12] is the sub-list for method input_type
 	12, // [12:12] is the sub-list for extension type_name
@@ -642,6 +710,18 @@ func file_app_dns_config_proto_init() {
 			}
 		}
 		file_app_dns_config_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*NameServer_PriorityDomain); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_app_dns_config_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*NameServer_OriginalRule); i {
 			case 0:
 				return &v.state
@@ -653,7 +733,7 @@ func file_app_dns_config_proto_init() {
 				return nil
 			}
 		}
-		file_app_dns_config_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
+		file_app_dns_config_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*Config_HostMapping); i {
 			case 0:
 				return &v.state
@@ -672,7 +752,7 @@ func file_app_dns_config_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_app_dns_config_proto_rawDesc,
 			NumEnums:      2,
-			NumMessages:   5,
+			NumMessages:   6,
 			NumExtensions: 0,
 			NumServices:   0,
 		},

app/dns/config.proto

@@ -8,36 +8,41 @@ option java_multiple_files = true;
 
 import "common/net/address.proto";
 import "common/net/destination.proto";
-import "common/matcher/domain/domain.proto";
-import "common/matcher/geoip/geoip.proto";
+import "app/router/config.proto";
 
 message NameServer {
   xray.common.net.Endpoint address = 1;
   bytes client_ip = 5;
   bool skipFallback = 6;
 
+  message PriorityDomain {
+    DomainMatchingType type = 1;
+    string domain = 2;
+  }
+
   message OriginalRule {
     string rule = 1;
     uint32 size = 2;
   }
 
-  repeated xray.common.matcher.domain.Domain prioritized_domain = 2;
-  repeated xray.common.matcher.geoip.GeoIP geoip = 3;
+  repeated PriorityDomain prioritized_domain = 2;
+  repeated xray.app.router.GeoIP geoip = 3;
   repeated OriginalRule original_rules = 4;
 }
 
+enum DomainMatchingType {
+  Full = 0;
+  Subdomain = 1;
+  Keyword = 2;
+  Regex = 3;
+}
+
 enum QueryStrategy {
   USE_IP = 0;
   USE_IP4 = 1;
   USE_IP6 = 2;
 }
 
-enum CacheStrategy {
-  Cache_ALL = 0;
-  Cache_NOERROR = 1;
-  Cache_DISABLE = 2;
-}
-
 message Config {
   // Nameservers used by this DNS. Only traditional UDP servers are support at
   // the moment. A special value 'localhost' as a domain address can be set to
@@ -56,7 +61,7 @@ message Config {
   bytes client_ip = 3;
 
   message HostMapping {
-    xray.common.matcher.domain.MatchingType type = 1;
+    DomainMatchingType type = 1;
     string domain = 2;
 
     repeated bytes ip = 3;
@@ -74,9 +79,10 @@ message Config {
   reserved 7;
 
   // DisableCache disables DNS cache
-  CacheStrategy cache_strategy = 8;
+  bool disableCache = 8;
 
   QueryStrategy query_strategy = 9;
 
   bool disableFallback = 10;
+  bool disableFallbackIfMatch = 11;
 }

app/dns/dns.go

@@ -9,12 +9,12 @@ import (
 	"strings"
 	"sync"
 
+	"github.com/xtls/xray-core/app/router"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
-	"github.com/xtls/xray-core/common/matcher/geoip"
-	"github.com/xtls/xray-core/common/matcher/str"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/session"
+	"github.com/xtls/xray-core/common/strmatcher"
 	"github.com/xtls/xray-core/features"
 	"github.com/xtls/xray-core/features/dns"
 )
@@ -22,15 +22,16 @@ import (
 // DNS is a DNS rely server.
 type DNS struct {
 	sync.Mutex
-	tag             string
-	cacheStrategy   CacheStrategy
-	disableFallback bool
-	ipOption        *dns.IPOption
-	hosts           *StaticHosts
-	clients         []*Client
-	ctx             context.Context
-	domainMatcher   str.IndexMatcher
-	matcherInfos    []DomainMatcherInfo
+	tag                    string
+	disableCache           bool
+	disableFallback        bool
+	disableFallbackIfMatch bool
+	ipOption               *dns.IPOption
+	hosts                  *StaticHosts
+	clients                []*Client
+	ctx                    context.Context
+	domainMatcher          strmatcher.IndexMatcher
+	matcherInfos           []*DomainMatcherInfo
 }
 
 // DomainMatcherInfo contains information attached to index returned by Server.domainMatcher
@@ -90,9 +91,9 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 	}
 
 	// MatcherInfos is ensured to cover the maximum index domainMatcher could return, where matcher's index starts from 1
-	matcherInfos := make([]DomainMatcherInfo, domainRuleCount+1)
-	domainMatcher := &str.MatcherGroup{}
-	geoipContainer := geoip.GeoIPMatcherContainer{}
+	matcherInfos := make([]*DomainMatcherInfo, domainRuleCount+1)
+	domainMatcher := &strmatcher.MatcherGroup{}
+	geoipContainer := router.GeoIPMatcherContainer{}
 
 	for _, endpoint := range config.NameServers {
 		features.PrintDeprecatedFeatureWarning("simple DNS server")
@@ -105,9 +106,9 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 
 	for _, ns := range config.NameServer {
 		clientIdx := len(clients)
-		updateDomain := func(domainRule str.Matcher, originalRuleIdx int, matcherInfos []DomainMatcherInfo) error {
+		updateDomain := func(domainRule strmatcher.Matcher, originalRuleIdx int, matcherInfos []*DomainMatcherInfo) error {
 			midx := domainMatcher.Add(domainRule)
-			matcherInfos[midx] = DomainMatcherInfo{
+			matcherInfos[midx] = &DomainMatcherInfo{
 				clientIdx:     uint16(clientIdx),
 				domainRuleIdx: uint16(originalRuleIdx),
 			}
@@ -132,15 +133,16 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 	}
 
 	return &DNS{
-		tag:             tag,
-		hosts:           hosts,
-		ipOption:        ipOption,
-		clients:         clients,
-		ctx:             ctx,
-		domainMatcher:   domainMatcher,
-		matcherInfos:    matcherInfos,
-		cacheStrategy:   config.CacheStrategy,
-		disableFallback: config.DisableFallback,
+		tag:                    tag,
+		hosts:                  hosts,
+		ipOption:               ipOption,
+		clients:                clients,
+		ctx:                    ctx,
+		domainMatcher:          domainMatcher,
+		matcherInfos:           matcherInfos,
+		disableCache:           config.DisableCache,
+		disableFallback:        config.DisableFallback,
+		disableFallbackIfMatch: config.DisableFallbackIfMatch,
 	}, nil
 }
 
@@ -166,42 +168,16 @@ func (s *DNS) IsOwnLink(ctx context.Context) bool {
 }
 
 // LookupIP implements dns.Client.
-func (s *DNS) LookupIP(domain string) ([]net.IP, error) {
-	return s.lookupIPInternal(domain, s.ipOption.Copy())
-}
-
-// LookupOptions implements dns.Client.
-func (s *DNS) LookupOptions(domain string, opts ...dns.Option) ([]net.IP, error) {
-	opt := s.ipOption.Copy()
-	for _, o := range opts {
-		if o != nil {
-			o(opt)
-		}
-	}
-
-	return s.lookupIPInternal(domain, opt)
-}
-
-// LookupIPv4 implements dns.IPv4Lookup.
-func (s *DNS) LookupIPv4(domain string) ([]net.IP, error) {
-	return s.lookupIPInternal(domain, &dns.IPOption{
-		IPv4Enable: true,
-	})
-}
-
-// LookupIPv6 implements dns.IPv6Lookup.
-func (s *DNS) LookupIPv6(domain string) ([]net.IP, error) {
-	return s.lookupIPInternal(domain, &dns.IPOption{
-		IPv6Enable: true,
-	})
-}
-
-func (s *DNS) lookupIPInternal(domain string, option *dns.IPOption) ([]net.IP, error) {
+func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, error) {
 	if domain == "" {
 		return nil, newError("empty domain name")
 	}
-	if isQuery(option) {
-		return nil, newError("empty option: Impossible.").AtWarning()
+
+	option.IPv4Enable = option.IPv4Enable && s.ipOption.IPv4Enable
+	option.IPv6Enable = option.IPv6Enable && s.ipOption.IPv6Enable
+
+	if !option.IPv4Enable && !option.IPv6Enable {
+		return nil, dns.ErrEmptyResponse
 	}
 
 	// Normalize the FQDN form query
@@ -218,20 +194,20 @@ func (s *DNS) lookupIPInternal(domain string, option *dns.IPOption) ([]net.IP, e
 	case len(addrs) == 1 && addrs[0].Family().IsDomain(): // Domain replacement
 		newError("domain replaced: ", domain, " -> ", addrs[0].Domain()).WriteToLog()
 		domain = addrs[0].Domain()
-	default:
-		// Successfully found ip records in static host.
-		// Skip hosts mapping result in FakeDNS query.
-		if isIPQuery(option) {
-			newError("returning ", len(addrs), " IP(s) for domain ", domain, " -> ", addrs).WriteToLog()
-			return toNetIP(addrs)
-		}
+	default: // Successfully found ip records in static host
+		newError("returning ", len(addrs), " IP(s) for domain ", domain, " -> ", addrs).WriteToLog()
+		return toNetIP(addrs)
 	}
 
 	// Name servers lookup
 	errs := []error{}
 	ctx := session.ContextWithInbound(s.ctx, &session.Inbound{Tag: s.tag})
-	for _, client := range s.sortClients(domain, option) {
-		ips, err := client.QueryIP(ctx, domain, *option, s.cacheStrategy)
+	for _, client := range s.sortClients(domain) {
+		if !option.FakeEnable && strings.EqualFold(client.Name(), "FakeDNS") {
+			newError("skip DNS resolution for domain ", domain, " at server ", client.Name()).AtDebug().WriteToLog()
+			continue
+		}
+		ips, err := client.QueryIP(ctx, domain, option, s.disableCache)
 		if len(ips) > 0 {
 			return ips, nil
 		}
@@ -247,35 +223,34 @@ func (s *DNS) lookupIPInternal(domain string, option *dns.IPOption) ([]net.IP, e
 	return nil, newError("returning nil for domain ", domain).Base(errors.Combine(errs...))
 }
 
-func (s *DNS) sortClients(domain string, option *dns.IPOption) []*Client {
+// GetIPOption implements ClientWithIPOption.
+func (s *DNS) GetIPOption() *dns.IPOption {
+	return s.ipOption
+}
+
+// SetQueryOption implements ClientWithIPOption.
+func (s *DNS) SetQueryOption(isIPv4Enable, isIPv6Enable bool) {
+	s.ipOption.IPv4Enable = isIPv4Enable
+	s.ipOption.IPv6Enable = isIPv6Enable
+}
+
+// SetFakeDNSOption implements ClientWithIPOption.
+func (s *DNS) SetFakeDNSOption(isFakeEnable bool) {
+	s.ipOption.FakeEnable = isFakeEnable
+}
+
+func (s *DNS) sortClients(domain string) []*Client {
 	clients := make([]*Client, 0, len(s.clients))
 	clientUsed := make([]bool, len(s.clients))
 	clientNames := make([]string, 0, len(s.clients))
 	domainRules := []string{}
 
-	defer func() {
-		if len(domainRules) > 0 {
-			newError("domain ", domain, " matches following rules: ", domainRules).AtDebug().WriteToLog()
-		}
-		if len(clientNames) > 0 {
-			newError("domain ", domain, " will use DNS in order: ", clientNames).AtDebug().WriteToLog()
-		}
-		if len(clients) == 0 {
-			clients = append(clients, s.clients[0])
-			clientNames = append(clientNames, s.clients[0].Name())
-			newError("domain ", domain, " will use the first DNS: ", clientNames).AtDebug().WriteToLog()
-		}
-	}()
-
 	// Priority domain matching
+	hasMatch := false
 	for _, match := range s.domainMatcher.Match(domain) {
 		info := s.matcherInfos[match]
 		client := s.clients[info.clientIdx]
 		domainRule := client.domains[info.domainRuleIdx]
-		if !canQueryOnClient(option, client) {
-			newError("skipping the client " + client.Name()).AtDebug().WriteToLog()
-			continue
-		}
 		domainRules = append(domainRules, fmt.Sprintf("%s(DNS idx:%d)", domainRule, info.clientIdx))
 		if clientUsed[info.clientIdx] {
 			continue
@@ -283,26 +258,34 @@ func (s *DNS) sortClients(domain string, option *dns.IPOption) []*Client {
 		clientUsed[info.clientIdx] = true
 		clients = append(clients, client)
 		clientNames = append(clientNames, client.Name())
+		hasMatch = true
 	}
 
-	if !s.disableFallback {
+	if !(s.disableFallback || s.disableFallbackIfMatch && hasMatch) {
 		// Default round-robin query
 		for idx, client := range s.clients {
 			if clientUsed[idx] || client.skipFallback {
 				continue
 			}
-
-			if !canQueryOnClient(option, client) {
-				newError("skipping the client " + client.Name()).AtDebug().WriteToLog()
-				continue
-			}
-
 			clientUsed[idx] = true
 			clients = append(clients, client)
 			clientNames = append(clientNames, client.Name())
 		}
 	}
 
+	if len(domainRules) > 0 {
+		newError("domain ", domain, " matches following rules: ", domainRules).AtDebug().WriteToLog()
+	}
+	if len(clientNames) > 0 {
+		newError("domain ", domain, " will use DNS in order: ", clientNames).AtDebug().WriteToLog()
+	}
+
+	if len(clients) == 0 {
+		clients = append(clients, s.clients[0])
+		clientNames = append(clientNames, s.clients[0].Name())
+		newError("domain ", domain, " will use the first DNS: ", clientNames).AtDebug().WriteToLog()
+	}
+
 	return clients
 }
 

app/dns/dns_test.go

@@ -6,15 +6,13 @@ import (
 
 	"github.com/google/go-cmp/cmp"
 	"github.com/miekg/dns"
-
 	"github.com/xtls/xray-core/app/dispatcher"
 	. "github.com/xtls/xray-core/app/dns"
 	"github.com/xtls/xray-core/app/policy"
 	"github.com/xtls/xray-core/app/proxyman"
 	_ "github.com/xtls/xray-core/app/proxyman/outbound"
+	"github.com/xtls/xray-core/app/router"
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/matcher/domain"
-	"github.com/xtls/xray-core/common/matcher/geoip"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/serial"
 	"github.com/xtls/xray-core/core"
@@ -23,8 +21,7 @@ import (
 	"github.com/xtls/xray-core/testing/servers/udp"
 )
 
-type staticHandler struct {
-}
+type staticHandler struct{}
 
 func (*staticHandler) ServeDNS(w dns.ResponseWriter, r *dns.Msg) {
 	ans := new(dns.Msg)
@@ -155,7 +152,11 @@ func TestUDPServerSubnet(t *testing.T) {
 
 	client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)
 
-	ips, err := client.LookupIP("google.com")
+	ips, err := client.LookupIP("google.com", feature_dns.IPOption{
+		IPv4Enable: true,
+		IPv6Enable: true,
+		FakeEnable: false,
+	})
 	if err != nil {
 		t.Fatal("unexpected error: ", err)
 	}
@@ -210,7 +211,11 @@ func TestUDPServer(t *testing.T) {
 	client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)
 
 	{
-		ips, err := client.LookupIP("google.com")
+		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
+			IPv4Enable: true,
+			IPv6Enable: true,
+			FakeEnable: false,
+		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -221,7 +226,11 @@ func TestUDPServer(t *testing.T) {
 	}
 
 	{
-		ips, err := client.LookupIP("facebook.com")
+		ips, err := client.LookupIP("facebook.com", feature_dns.IPOption{
+			IPv4Enable: true,
+			IPv6Enable: true,
+			FakeEnable: false,
+		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -232,7 +241,11 @@ func TestUDPServer(t *testing.T) {
 	}
 
 	{
-		_, err := client.LookupIP("notexist.google.com")
+		_, err := client.LookupIP("notexist.google.com", feature_dns.IPOption{
+			IPv4Enable: true,
+			IPv6Enable: true,
+			FakeEnable: false,
+		})
 		if err == nil {
 			t.Fatal("nil error")
 		}
@@ -242,8 +255,11 @@ func TestUDPServer(t *testing.T) {
 	}
 
 	{
-		clientv6 := client.(feature_dns.IPv6Lookup)
-		ips, err := clientv6.LookupIPv6("ipv4only.google.com")
+		ips, err := client.LookupIP("ipv4only.google.com", feature_dns.IPOption{
+			IPv4Enable: false,
+			IPv6Enable: true,
+			FakeEnable: false,
+		})
 		if err != feature_dns.ErrEmptyResponse {
 			t.Fatal("error: ", err)
 		}
@@ -255,7 +271,11 @@ func TestUDPServer(t *testing.T) {
 	dnsServer.Shutdown()
 
 	{
-		ips, err := client.LookupIP("google.com")
+		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
+			IPv4Enable: true,
+			IPv6Enable: true,
+			FakeEnable: false,
+		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -304,10 +324,10 @@ func TestPrioritizedDomain(t *testing.T) {
 							},
 							Port: uint32(port),
 						},
-						PrioritizedDomain: []*domain.Domain{
+						PrioritizedDomain: []*NameServer_PriorityDomain{
 							{
-								Type:  domain.MatchingType_Full,
-								Value: "google.com",
+								Type:   DomainMatchingType_Full,
+								Domain: "google.com",
 							},
 						},
 					},
@@ -332,7 +352,11 @@ func TestPrioritizedDomain(t *testing.T) {
 	startTime := time.Now()
 
 	{
-		ips, err := client.LookupIP("google.com")
+		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
+			IPv4Enable: true,
+			IPv6Enable: true,
+			FakeEnable: false,
+		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -391,9 +415,12 @@ func TestUDPServerIPv6(t *testing.T) {
 	common.Must(err)
 
 	client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)
-	client6 := client.(feature_dns.IPv6Lookup)
 	{
-		ips, err := client6.LookupIPv6("ipv6.google.com")
+		ips, err := client.LookupIP("ipv6.google.com", feature_dns.IPOption{
+			IPv4Enable: false,
+			IPv6Enable: true,
+			FakeEnable: false,
+		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -433,7 +460,7 @@ func TestStaticHostDomain(t *testing.T) {
 				},
 				StaticHosts: []*Config_HostMapping{
 					{
-						Type:          domain.MatchingType_Full,
+						Type:          DomainMatchingType_Full,
 						Domain:        "example.com",
 						ProxiedDomain: "google.com",
 					},
@@ -456,7 +483,11 @@ func TestStaticHostDomain(t *testing.T) {
 	client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)
 
 	{
-		ips, err := client.LookupIP("example.com")
+		ips, err := client.LookupIP("example.com", feature_dns.IPOption{
+			IPv4Enable: true,
+			IPv6Enable: true,
+			FakeEnable: false,
+		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -497,10 +528,10 @@ func TestIPMatch(t *testing.T) {
 							},
 							Port: uint32(port),
 						},
-						Geoip: []*geoip.GeoIP{
+						Geoip: []*router.GeoIP{
 							{
 								CountryCode: "local",
-								Cidr: []*geoip.CIDR{
+								Cidr: []*router.CIDR{
 									{
 										// inner ip, will not match
 										Ip:     []byte{192, 168, 11, 1},
@@ -521,10 +552,10 @@ func TestIPMatch(t *testing.T) {
 							},
 							Port: uint32(port),
 						},
-						Geoip: []*geoip.GeoIP{
+						Geoip: []*router.GeoIP{
 							{
 								CountryCode: "test",
-								Cidr: []*geoip.CIDR{
+								Cidr: []*router.CIDR{
 									{
 										Ip:     []byte{8, 8, 8, 8},
 										Prefix: 32,
@@ -533,7 +564,7 @@ func TestIPMatch(t *testing.T) {
 							},
 							{
 								CountryCode: "test",
-								Cidr: []*geoip.CIDR{
+								Cidr: []*router.CIDR{
 									{
 										Ip:     []byte{8, 8, 8, 4},
 										Prefix: 32,
@@ -563,7 +594,11 @@ func TestIPMatch(t *testing.T) {
 	startTime := time.Now()
 
 	{
-		ips, err := client.LookupIP("google.com")
+		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
+			IPv4Enable: true,
+			IPv6Enable: true,
+			FakeEnable: false,
+		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -617,14 +652,14 @@ func TestLocalDomain(t *testing.T) {
 							},
 							Port: uint32(port),
 						},
-						PrioritizedDomain: []*domain.Domain{
+						PrioritizedDomain: []*NameServer_PriorityDomain{
 							// Equivalent of dotless:localhost
-							{Type: domain.MatchingType_Regex, Value: "^[^.]*localhost[^.]*$"},
+							{Type: DomainMatchingType_Regex, Domain: "^[^.]*localhost[^.]*$"},
 						},
-						Geoip: []*geoip.GeoIP{
+						Geoip: []*router.GeoIP{
 							{ // Will match localhost, localhost-a and localhost-b,
 								CountryCode: "local",
-								Cidr: []*geoip.CIDR{
+								Cidr: []*router.CIDR{
 									{Ip: []byte{127, 0, 0, 2}, Prefix: 32},
 									{Ip: []byte{127, 0, 0, 3}, Prefix: 32},
 									{Ip: []byte{127, 0, 0, 4}, Prefix: 32},
@@ -642,22 +677,22 @@ func TestLocalDomain(t *testing.T) {
 							},
 							Port: uint32(port),
 						},
-						PrioritizedDomain: []*domain.Domain{
+						PrioritizedDomain: []*NameServer_PriorityDomain{
 							// Equivalent of dotless: and domain:local
-							{Type: domain.MatchingType_Regex, Value: "^[^.]*$"},
-							{Type: domain.MatchingType_Subdomain, Value: "local"},
-							{Type: domain.MatchingType_Subdomain, Value: "localdomain"},
+							{Type: DomainMatchingType_Regex, Domain: "^[^.]*$"},
+							{Type: DomainMatchingType_Subdomain, Domain: "local"},
+							{Type: DomainMatchingType_Subdomain, Domain: "localdomain"},
 						},
 					},
 				},
 				StaticHosts: []*Config_HostMapping{
 					{
-						Type:   domain.MatchingType_Full,
+						Type:   DomainMatchingType_Full,
 						Domain: "hostnamestatic",
 						Ip:     [][]byte{{127, 0, 0, 53}},
 					},
 					{
-						Type:          domain.MatchingType_Full,
+						Type:          DomainMatchingType_Full,
 						Domain:        "hostnamealias",
 						ProxiedDomain: "hostname.localdomain",
 					},
@@ -682,7 +717,11 @@ func TestLocalDomain(t *testing.T) {
 	startTime := time.Now()
 
 	{ // Will match dotless:
-		ips, err := client.LookupIP("hostname")
+		ips, err := client.LookupIP("hostname", feature_dns.IPOption{
+			IPv4Enable: true,
+			IPv6Enable: true,
+			FakeEnable: false,
+		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -693,7 +732,11 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match domain:local
-		ips, err := client.LookupIP("hostname.local")
+		ips, err := client.LookupIP("hostname.local", feature_dns.IPOption{
+			IPv4Enable: true,
+			IPv6Enable: true,
+			FakeEnable: false,
+		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -704,7 +747,11 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match static ip
-		ips, err := client.LookupIP("hostnamestatic")
+		ips, err := client.LookupIP("hostnamestatic", feature_dns.IPOption{
+			IPv4Enable: true,
+			IPv6Enable: true,
+			FakeEnable: false,
+		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -715,7 +762,11 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match domain replacing
-		ips, err := client.LookupIP("hostnamealias")
+		ips, err := client.LookupIP("hostnamealias", feature_dns.IPOption{
+			IPv4Enable: true,
+			IPv6Enable: true,
+			FakeEnable: false,
+		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -726,7 +777,11 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match dotless:localhost, but not expectIPs: 127.0.0.2, 127.0.0.3, then matches at dotless:
-		ips, err := client.LookupIP("localhost")
+		ips, err := client.LookupIP("localhost", feature_dns.IPOption{
+			IPv4Enable: true,
+			IPv6Enable: true,
+			FakeEnable: false,
+		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -737,7 +792,11 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match dotless:localhost, and expectIPs: 127.0.0.2, 127.0.0.3
-		ips, err := client.LookupIP("localhost-a")
+		ips, err := client.LookupIP("localhost-a", feature_dns.IPOption{
+			IPv4Enable: true,
+			IPv6Enable: true,
+			FakeEnable: false,
+		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -748,7 +807,11 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match dotless:localhost, and expectIPs: 127.0.0.2, 127.0.0.3
-		ips, err := client.LookupIP("localhost-b")
+		ips, err := client.LookupIP("localhost-b", feature_dns.IPOption{
+			IPv4Enable: true,
+			IPv6Enable: true,
+			FakeEnable: false,
+		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -759,7 +822,11 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match dotless:
-		ips, err := client.LookupIP("Mijia Cloud")
+		ips, err := client.LookupIP("Mijia Cloud", feature_dns.IPOption{
+			IPv4Enable: true,
+			IPv6Enable: true,
+			FakeEnable: false,
+		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -813,15 +880,15 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 							},
 							Port: uint32(port),
 						},
-						PrioritizedDomain: []*domain.Domain{
+						PrioritizedDomain: []*NameServer_PriorityDomain{
 							{
-								Type:  domain.MatchingType_Subdomain,
-								Value: "google.com",
+								Type:   DomainMatchingType_Subdomain,
+								Domain: "google.com",
 							},
 						},
-						Geoip: []*geoip.GeoIP{
+						Geoip: []*router.GeoIP{
 							{ // Will only match 8.8.8.8 and 8.8.4.4
-								Cidr: []*geoip.CIDR{
+								Cidr: []*router.CIDR{
 									{Ip: []byte{8, 8, 8, 8}, Prefix: 32},
 									{Ip: []byte{8, 8, 4, 4}, Prefix: 32},
 								},
@@ -838,15 +905,15 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 							},
 							Port: uint32(port),
 						},
-						PrioritizedDomain: []*domain.Domain{
+						PrioritizedDomain: []*NameServer_PriorityDomain{
 							{
-								Type:  domain.MatchingType_Subdomain,
-								Value: "google.com",
+								Type:   DomainMatchingType_Subdomain,
+								Domain: "google.com",
 							},
 						},
-						Geoip: []*geoip.GeoIP{
+						Geoip: []*router.GeoIP{
 							{ // Will match 8.8.8.8 and 8.8.8.7, etc
-								Cidr: []*geoip.CIDR{
+								Cidr: []*router.CIDR{
 									{Ip: []byte{8, 8, 8, 7}, Prefix: 24},
 								},
 							},
@@ -862,15 +929,15 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 							},
 							Port: uint32(port),
 						},
-						PrioritizedDomain: []*domain.Domain{
+						PrioritizedDomain: []*NameServer_PriorityDomain{
 							{
-								Type:  domain.MatchingType_Subdomain,
-								Value: "api.google.com",
+								Type:   DomainMatchingType_Subdomain,
+								Domain: "api.google.com",
 							},
 						},
-						Geoip: []*geoip.GeoIP{
+						Geoip: []*router.GeoIP{
 							{ // Will only match 8.8.7.7 (api.google.com)
-								Cidr: []*geoip.CIDR{
+								Cidr: []*router.CIDR{
 									{Ip: []byte{8, 8, 7, 7}, Prefix: 32},
 								},
 							},
@@ -886,15 +953,15 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 							},
 							Port: uint32(port),
 						},
-						PrioritizedDomain: []*domain.Domain{
+						PrioritizedDomain: []*NameServer_PriorityDomain{
 							{
-								Type:  domain.MatchingType_Full,
-								Value: "v2.api.google.com",
+								Type:   DomainMatchingType_Full,
+								Domain: "v2.api.google.com",
 							},
 						},
-						Geoip: []*geoip.GeoIP{
+						Geoip: []*router.GeoIP{
 							{ // Will only match 8.8.7.8 (v2.api.google.com)
-								Cidr: []*geoip.CIDR{
+								Cidr: []*router.CIDR{
 									{Ip: []byte{8, 8, 7, 8}, Prefix: 32},
 								},
 							},
@@ -921,7 +988,11 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 	startTime := time.Now()
 
 	{ // Will match server 1,2 and server 1 returns expected ip
-		ips, err := client.LookupIP("google.com")
+		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
+			IPv4Enable: true,
+			IPv6Enable: true,
+			FakeEnable: false,
+		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -932,8 +1003,11 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 	}
 
 	{ // Will match server 1,2 and server 1 returns unexpected ip, then server 2 returns expected one
-		clientv4 := client.(feature_dns.IPv4Lookup)
-		ips, err := clientv4.LookupIPv4("ipv6.google.com")
+		ips, err := client.LookupIP("ipv6.google.com", feature_dns.IPOption{
+			IPv4Enable: true,
+			IPv6Enable: false,
+			FakeEnable: false,
+		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -944,7 +1018,11 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 	}
 
 	{ // Will match server 3,1,2 and server 3 returns expected one
-		ips, err := client.LookupIP("api.google.com")
+		ips, err := client.LookupIP("api.google.com", feature_dns.IPOption{
+			IPv4Enable: true,
+			IPv6Enable: true,
+			FakeEnable: false,
+		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -955,7 +1033,11 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 	}
 
 	{ // Will match server 4,3,1,2 and server 4 returns expected one
-		ips, err := client.LookupIP("v2.api.google.com")
+		ips, err := client.LookupIP("v2.api.google.com", feature_dns.IPOption{
+			IPv4Enable: true,
+			IPv6Enable: true,
+			FakeEnable: false,
+		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}

app/dns/dnscommon.go

@@ -5,11 +5,12 @@ import (
 	"strings"
 	"time"
 
+	"golang.org/x/net/dns/dnsmessage"
+
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
 	dns_feature "github.com/xtls/xray-core/features/dns"
-	"golang.org/x/net/dns/dnsmessage"
 )
 
 // Fqdn normalize domain make sure it ends with '.'
@@ -53,9 +54,7 @@ func isNewer(baseRec *IPRecord, newRec *IPRecord) bool {
 	return baseRec.Expire.Before(newRec.Expire)
 }
 
-var (
-	errRecordNotFound = errors.New("record not found")
-)
+var errRecordNotFound = errors.New("record not found")
 
 type dnsRequest struct {
 	reqType dnsmessage.Type
@@ -212,7 +211,7 @@ L:
 		case dnsmessage.TypeAAAA:
 			ans, err := parser.AAAAResource()
 			if err != nil {
-				newError("failed to parse A record for domain: ", ah.Name).Base(err).WriteToLog()
+				newError("failed to parse AAAA record for domain: ", ah.Name).Base(err).WriteToLog()
 				break L
 			}
 			ipRecord.IP = append(ipRecord.IP, net.IPAddress(ans.AAAA[:]))

app/dns/dnscommon_test.go

@@ -7,10 +7,11 @@ import (
 
 	"github.com/google/go-cmp/cmp"
 	"github.com/miekg/dns"
+	"golang.org/x/net/dns/dnsmessage"
+
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/net"
 	dns_feature "github.com/xtls/xray-core/features/dns"
-	"golang.org/x/net/dns/dnsmessage"
 )
 
 func Test_parseResponse(t *testing.T) {
@@ -49,20 +50,28 @@ func Test_parseResponse(t *testing.T) {
 		want    *IPRecord
 		wantErr bool
 	}{
-		{"empty",
+		{
+			"empty",
 			&IPRecord{0, []net.Address(nil), time.Time{}, dnsmessage.RCodeSuccess},
 			false,
 		},
-		{"error",
+		{
+			"error",
 			nil,
 			true,
 		},
-		{"a record",
-			&IPRecord{1, []net.Address{net.ParseAddress("8.8.8.8"), net.ParseAddress("8.8.4.4")},
-				time.Time{}, dnsmessage.RCodeSuccess},
+		{
+			"a record",
+			&IPRecord{
+				1,
+				[]net.Address{net.ParseAddress("8.8.8.8"), net.ParseAddress("8.8.4.4")},
+				time.Time{},
+				dnsmessage.RCodeSuccess,
+			},
 			false,
 		},
-		{"aaaa record",
+		{
+			"aaaa record",
 			&IPRecord{2, []net.Address{net.ParseAddress("2001::123:8888"), net.ParseAddress("2001::123:8844")}, time.Time{}, dnsmessage.RCodeSuccess},
 			false,
 		},

app/dns/fakedns/fake.go

@@ -20,12 +20,30 @@ type Holder struct {
 	config *FakeDnsPool
 }
 
+func (fkdns *Holder) IsIPInIPPool(ip net.Address) bool {
+	if ip.Family().IsDomain() {
+		return false
+	}
+	return fkdns.ipRange.Contains(ip.IP())
+}
+
+func (fkdns *Holder) GetFakeIPForDomain3(domain string, ipv4, ipv6 bool) []net.Address {
+	isIPv6 := fkdns.ipRange.IP.To4() == nil
+	if (isIPv6 && ipv6) || (!isIPv6 && ipv4) {
+		return fkdns.GetFakeIPForDomain(domain)
+	}
+	return []net.Address{}
+}
+
 func (*Holder) Type() interface{} {
 	return (*dns.FakeDNSEngine)(nil)
 }
 
 func (fkdns *Holder) Start() error {
-	return fkdns.initializeFromConfig()
+	if fkdns.config != nil && fkdns.config.IpPool != "" && fkdns.config.LruSize != 0 {
+		return fkdns.initializeFromConfig()
+	}
+	return newError("invalid fakeDNS setting")
 }
 
 func (fkdns *Holder) Close() error {
@@ -41,7 +59,7 @@ func NewFakeDNSHolder() (*Holder, error) {
 	if fkdns, err = NewFakeDNSHolderConfigOnly(nil); err != nil {
 		return nil, newError("Unable to create Fake Dns Engine").Base(err).AtError()
 	}
-	err = fkdns.initialize(dns.FakeIPPool, 65535)
+	err = fkdns.initialize(dns.FakeIPv4Pool, 65535)
 	if err != nil {
 		return nil, err
 	}
@@ -79,13 +97,13 @@ func (fkdns *Holder) GetFakeIPForDomain(domain string) []net.Address {
 	if v, ok := fkdns.domainToIP.Get(domain); ok {
 		return []net.Address{v.(net.Address)}
 	}
-	var currentTimeMillis = uint64(time.Now().UnixNano() / 1e6)
+	currentTimeMillis := uint64(time.Now().UnixNano() / 1e6)
 	ones, bits := fkdns.ipRange.Mask.Size()
 	rooms := bits - ones
 	if rooms < 64 {
 		currentTimeMillis %= (uint64(1) << rooms)
 	}
-	var bigIntIP = big.NewInt(0).SetBytes(fkdns.ipRange.IP)
+	bigIntIP := big.NewInt(0).SetBytes(fkdns.ipRange.IP)
 	bigIntIP = bigIntIP.Add(bigIntIP, new(big.Int).SetUint64(currentTimeMillis))
 	var ip net.Address
 	for {
@@ -117,9 +135,92 @@ func (fkdns *Holder) GetDomainFromFakeDNS(ip net.Address) string {
 	return ""
 }
 
-// GetFakeIPRange return fake IP range from configuration
-func (fkdns *Holder) GetFakeIPRange() *gonet.IPNet {
-	return fkdns.ipRange
+type HolderMulti struct {
+	holders []*Holder
+
+	config *FakeDnsPoolMulti
+}
+
+func (h *HolderMulti) IsIPInIPPool(ip net.Address) bool {
+	if ip.Family().IsDomain() {
+		return false
+	}
+	for _, v := range h.holders {
+		if v.IsIPInIPPool(ip) {
+			return true
+		}
+	}
+	return false
+}
+
+func (h *HolderMulti) GetFakeIPForDomain3(domain string, ipv4, ipv6 bool) []net.Address {
+	var ret []net.Address
+	for _, v := range h.holders {
+		ret = append(ret, v.GetFakeIPForDomain3(domain, ipv4, ipv6)...)
+	}
+	return ret
+}
+
+func (h *HolderMulti) GetFakeIPForDomain(domain string) []net.Address {
+	var ret []net.Address
+	for _, v := range h.holders {
+		ret = append(ret, v.GetFakeIPForDomain(domain)...)
+	}
+	return ret
+}
+
+func (h *HolderMulti) GetDomainFromFakeDNS(ip net.Address) string {
+	for _, v := range h.holders {
+		if domain := v.GetDomainFromFakeDNS(ip); domain != "" {
+			return domain
+		}
+	}
+	return ""
+}
+
+func (h *HolderMulti) Type() interface{} {
+	return (*dns.FakeDNSEngine)(nil)
+}
+
+func (h *HolderMulti) Start() error {
+	for _, v := range h.holders {
+		if v.config != nil && v.config.IpPool != "" && v.config.LruSize != 0 {
+			if err := v.Start(); err != nil {
+				return newError("Cannot start all fake dns pools").Base(err)
+			}
+		} else {
+			return newError("invalid fakeDNS setting")
+		}
+	}
+	return nil
+}
+
+func (h *HolderMulti) Close() error {
+	for _, v := range h.holders {
+		if err := v.Close(); err != nil {
+			return newError("Cannot close all fake dns pools").Base(err)
+		}
+	}
+	return nil
+}
+
+func (h *HolderMulti) createHolderGroups() error {
+	for _, v := range h.config.Pools {
+		holder, err := NewFakeDNSHolderConfigOnly(v)
+		if err != nil {
+			return err
+		}
+		h.holders = append(h.holders, holder)
+	}
+	return nil
+}
+
+func NewFakeDNSHolderMulti(conf *FakeDnsPoolMulti) (*HolderMulti, error) {
+	holderMulti := &HolderMulti{nil, conf}
+	if err := holderMulti.createHolderGroups(); err != nil {
+		return nil, err
+	}
+	return holderMulti, nil
 }
 
 func init() {
@@ -131,4 +232,13 @@ func init() {
 		}
 		return f, nil
 	}))
+
+	common.Must(common.RegisterConfig((*FakeDnsPoolMulti)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
+		var f *HolderMulti
+		var err error
+		if f, err = NewFakeDNSHolderMulti(config.(*FakeDnsPoolMulti)); err != nil {
+			return nil, err
+		}
+		return f, nil
+	}))
 }

app/dns/fakedns/fakedns.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
-// 	protoc        v3.13.0
+// 	protoc-gen-go v1.27.1
+// 	protoc        v3.18.0
 // source: app/dns/fakedns/fakedns.proto
 
 package fakedns
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type FakeDnsPool struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -80,24 +75,75 @@ func (x *FakeDnsPool) GetLruSize() int64 {
 	return 0
 }
 
+type FakeDnsPoolMulti struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Pools []*FakeDnsPool `protobuf:"bytes,1,rep,name=pools,proto3" json:"pools,omitempty"`
+}
+
+func (x *FakeDnsPoolMulti) Reset() {
+	*x = FakeDnsPoolMulti{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_app_dns_fakedns_fakedns_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *FakeDnsPoolMulti) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*FakeDnsPoolMulti) ProtoMessage() {}
+
+func (x *FakeDnsPoolMulti) ProtoReflect() protoreflect.Message {
+	mi := &file_app_dns_fakedns_fakedns_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use FakeDnsPoolMulti.ProtoReflect.Descriptor instead.
+func (*FakeDnsPoolMulti) Descriptor() ([]byte, []int) {
+	return file_app_dns_fakedns_fakedns_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *FakeDnsPoolMulti) GetPools() []*FakeDnsPool {
+	if x != nil {
+		return x.Pools
+	}
+	return nil
+}
+
 var File_app_dns_fakedns_fakedns_proto protoreflect.FileDescriptor
 
 var file_app_dns_fakedns_fakedns_proto_rawDesc = []byte{
 	0x0a, 0x1d, 0x61, 0x70, 0x70, 0x2f, 0x64, 0x6e, 0x73, 0x2f, 0x66, 0x61, 0x6b, 0x65, 0x64, 0x6e,
 	0x73, 0x2f, 0x66, 0x61, 0x6b, 0x65, 0x64, 0x6e, 0x73, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12,
-	0x1a, 0x76, 0x32, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x72, 0x65, 0x2e, 0x61, 0x70, 0x70, 0x2e,
-	0x64, 0x6e, 0x73, 0x2e, 0x66, 0x61, 0x6b, 0x65, 0x64, 0x6e, 0x73, 0x22, 0x40, 0x0a, 0x0b, 0x46,
-	0x61, 0x6b, 0x65, 0x44, 0x6e, 0x73, 0x50, 0x6f, 0x6f, 0x6c, 0x12, 0x17, 0x0a, 0x07, 0x69, 0x70,
-	0x5f, 0x70, 0x6f, 0x6f, 0x6c, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x06, 0x69, 0x70, 0x50,
-	0x6f, 0x6f, 0x6c, 0x12, 0x18, 0x0a, 0x07, 0x6c, 0x72, 0x75, 0x53, 0x69, 0x7a, 0x65, 0x18, 0x02,
-	0x20, 0x01, 0x28, 0x03, 0x52, 0x07, 0x6c, 0x72, 0x75, 0x53, 0x69, 0x7a, 0x65, 0x42, 0x5f, 0x0a,
-	0x1e, 0x63, 0x6f, 0x6d, 0x2e, 0x76, 0x32, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x72, 0x65, 0x2e,
-	0x61, 0x70, 0x70, 0x2e, 0x64, 0x6e, 0x73, 0x2e, 0x66, 0x61, 0x6b, 0x65, 0x64, 0x6e, 0x73, 0x50,
-	0x01, 0x5a, 0x1e, 0x76, 0x32, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x63, 0x6f, 0x72,
-	0x65, 0x2f, 0x61, 0x70, 0x70, 0x2f, 0x64, 0x6e, 0x73, 0x2f, 0x66, 0x61, 0x6b, 0x65, 0x64, 0x6e,
-	0x73, 0xaa, 0x02, 0x1a, 0x56, 0x32, 0x52, 0x61, 0x79, 0x2e, 0x43, 0x6f, 0x72, 0x65, 0x2e, 0x41,
-	0x70, 0x70, 0x2e, 0x44, 0x6e, 0x73, 0x2e, 0x46, 0x61, 0x6b, 0x65, 0x64, 0x6e, 0x73, 0x62, 0x06,
-	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+	0x14, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x64, 0x6e, 0x73, 0x2e, 0x66, 0x61,
+	0x6b, 0x65, 0x64, 0x6e, 0x73, 0x22, 0x40, 0x0a, 0x0b, 0x46, 0x61, 0x6b, 0x65, 0x44, 0x6e, 0x73,
+	0x50, 0x6f, 0x6f, 0x6c, 0x12, 0x17, 0x0a, 0x07, 0x69, 0x70, 0x5f, 0x70, 0x6f, 0x6f, 0x6c, 0x18,
+	0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x06, 0x69, 0x70, 0x50, 0x6f, 0x6f, 0x6c, 0x12, 0x18, 0x0a,
+	0x07, 0x6c, 0x72, 0x75, 0x53, 0x69, 0x7a, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x03, 0x52, 0x07,
+	0x6c, 0x72, 0x75, 0x53, 0x69, 0x7a, 0x65, 0x22, 0x4b, 0x0a, 0x10, 0x46, 0x61, 0x6b, 0x65, 0x44,
+	0x6e, 0x73, 0x50, 0x6f, 0x6f, 0x6c, 0x4d, 0x75, 0x6c, 0x74, 0x69, 0x12, 0x37, 0x0a, 0x05, 0x70,
+	0x6f, 0x6f, 0x6c, 0x73, 0x18, 0x01, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x21, 0x2e, 0x78, 0x72, 0x61,
+	0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x64, 0x6e, 0x73, 0x2e, 0x66, 0x61, 0x6b, 0x65, 0x64, 0x6e,
+	0x73, 0x2e, 0x46, 0x61, 0x6b, 0x65, 0x44, 0x6e, 0x73, 0x50, 0x6f, 0x6f, 0x6c, 0x52, 0x05, 0x70,
+	0x6f, 0x6f, 0x6c, 0x73, 0x42, 0x5e, 0x0a, 0x18, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79,
+	0x2e, 0x61, 0x70, 0x70, 0x2e, 0x64, 0x6e, 0x73, 0x2e, 0x66, 0x61, 0x6b, 0x65, 0x64, 0x6e, 0x73,
+	0x50, 0x01, 0x5a, 0x29, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78,
+	0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x61, 0x70,
+	0x70, 0x2f, 0x64, 0x6e, 0x73, 0x2f, 0x66, 0x61, 0x6b, 0x65, 0x64, 0x6e, 0x73, 0xaa, 0x02, 0x14,
+	0x58, 0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x44, 0x6e, 0x73, 0x2e, 0x46, 0x61, 0x6b,
+	0x65, 0x64, 0x6e, 0x73, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -112,16 +158,18 @@ func file_app_dns_fakedns_fakedns_proto_rawDescGZIP() []byte {
 	return file_app_dns_fakedns_fakedns_proto_rawDescData
 }
 
-var file_app_dns_fakedns_fakedns_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
+var file_app_dns_fakedns_fakedns_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
 var file_app_dns_fakedns_fakedns_proto_goTypes = []interface{}{
-	(*FakeDnsPool)(nil), // 0: xray.app.dns.fakedns.FakeDnsPool
+	(*FakeDnsPool)(nil),      // 0: xray.app.dns.fakedns.FakeDnsPool
+	(*FakeDnsPoolMulti)(nil), // 1: xray.app.dns.fakedns.FakeDnsPoolMulti
 }
 var file_app_dns_fakedns_fakedns_proto_depIdxs = []int32{
-	0, // [0:0] is the sub-list for method output_type
-	0, // [0:0] is the sub-list for method input_type
-	0, // [0:0] is the sub-list for extension type_name
-	0, // [0:0] is the sub-list for extension extendee
-	0, // [0:0] is the sub-list for field type_name
+	0, // 0: xray.app.dns.fakedns.FakeDnsPoolMulti.pools:type_name -> xray.app.dns.fakedns.FakeDnsPool
+	1, // [1:1] is the sub-list for method output_type
+	1, // [1:1] is the sub-list for method input_type
+	1, // [1:1] is the sub-list for extension type_name
+	1, // [1:1] is the sub-list for extension extendee
+	0, // [0:1] is the sub-list for field type_name
 }
 
 func init() { file_app_dns_fakedns_fakedns_proto_init() }
@@ -142,6 +190,18 @@ func file_app_dns_fakedns_fakedns_proto_init() {
 				return nil
 			}
 		}
+		file_app_dns_fakedns_fakedns_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*FakeDnsPoolMulti); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
 	}
 	type x struct{}
 	out := protoimpl.TypeBuilder{
@@ -149,7 +209,7 @@ func file_app_dns_fakedns_fakedns_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_app_dns_fakedns_fakedns_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   1,
+			NumMessages:   2,
 			NumExtensions: 0,
 			NumServices:   0,
 		},

app/dns/fakedns/fakedns.proto

@@ -9,4 +9,8 @@ option java_multiple_files = true;
 message FakeDnsPool{
   string ip_pool = 1; //CIDR of IP pool used as fake DNS IP
   int64  lruSize = 2; //Size of Pool for remembering relationship between domain name and IP address
+}
+
+message FakeDnsPoolMulti{
+  repeated FakeDnsPool pools = 1;
 }

app/dns/fakedns/fakedns_test.go

@@ -3,6 +3,8 @@ package fakedns
 import (
 	"testing"
 
+	gonet "net"
+
 	"github.com/stretchr/testify/assert"
 
 	"github.com/xtls/xray-core/common"
@@ -11,9 +13,7 @@ import (
 	"github.com/xtls/xray-core/features/dns"
 )
 
-var (
-	ipPrefix = "198.18."
-)
+var ipPrefix = "198.1"
 
 func TestNewFakeDnsHolder(_ *testing.T) {
 	_, err := NewFakeDNSHolder()
@@ -69,7 +69,7 @@ func TestFakeDnsHolderCreateMappingManySingleDomain(t *testing.T) {
 
 func TestFakeDnsHolderCreateMappingAndRollOver(t *testing.T) {
 	fkdns, err := NewFakeDNSHolderConfigOnly(&FakeDnsPool{
-		IpPool:  dns.FakeIPPool,
+		IpPool:  dns.FakeIPv4Pool,
 		LruSize: 256,
 	})
 	common.Must(err)
@@ -103,3 +103,79 @@ func TestFakeDnsHolderCreateMappingAndRollOver(t *testing.T) {
 		}
 	}
 }
+
+func TestFakeDNSMulti(t *testing.T) {
+	fakeMulti, err := NewFakeDNSHolderMulti(&FakeDnsPoolMulti{
+		Pools: []*FakeDnsPool{{
+			IpPool:  "240.0.0.0/12",
+			LruSize: 256,
+		}, {
+			IpPool:  "fddd:c5b4:ff5f:f4f0::/64",
+			LruSize: 256,
+		}},
+	},
+	)
+	common.Must(err)
+
+	err = fakeMulti.Start()
+
+	common.Must(err)
+
+	assert.Nil(t, err, "Should not throw error")
+	_ = fakeMulti
+
+	t.Run("checkInRange", func(t *testing.T) {
+		t.Run("ipv4", func(t *testing.T) {
+			inPool := fakeMulti.IsIPInIPPool(net.IPAddress([]byte{240, 0, 0, 5}))
+			assert.True(t, inPool)
+		})
+		t.Run("ipv6", func(t *testing.T) {
+			ip, err := gonet.ResolveIPAddr("ip", "fddd:c5b4:ff5f:f4f0::5")
+			assert.Nil(t, err)
+			inPool := fakeMulti.IsIPInIPPool(net.IPAddress(ip.IP))
+			assert.True(t, inPool)
+		})
+		t.Run("ipv4_inverse", func(t *testing.T) {
+			inPool := fakeMulti.IsIPInIPPool(net.IPAddress([]byte{241, 0, 0, 5}))
+			assert.False(t, inPool)
+		})
+		t.Run("ipv6_inverse", func(t *testing.T) {
+			ip, err := gonet.ResolveIPAddr("ip", "fcdd:c5b4:ff5f:f4f0::5")
+			assert.Nil(t, err)
+			inPool := fakeMulti.IsIPInIPPool(net.IPAddress(ip.IP))
+			assert.False(t, inPool)
+		})
+	})
+
+	t.Run("allocateTwoAddressForTwoPool", func(t *testing.T) {
+		address := fakeMulti.GetFakeIPForDomain("fakednstest.v2fly.org")
+		assert.Len(t, address, 2, "should be 2 address one for each pool")
+		t.Run("eachOfThemShouldResolve:0", func(t *testing.T) {
+			domain := fakeMulti.GetDomainFromFakeDNS(address[0])
+			assert.Equal(t, "fakednstest.v2fly.org", domain)
+		})
+		t.Run("eachOfThemShouldResolve:1", func(t *testing.T) {
+			domain := fakeMulti.GetDomainFromFakeDNS(address[1])
+			assert.Equal(t, "fakednstest.v2fly.org", domain)
+		})
+	})
+
+	t.Run("understandIPTypeSelector", func(t *testing.T) {
+		t.Run("ipv4", func(t *testing.T) {
+			address := fakeMulti.GetFakeIPForDomain3("fakednstestipv4.v2fly.org", true, false)
+			assert.Len(t, address, 1, "should be 1 address")
+			assert.True(t, address[0].Family().IsIPv4())
+		})
+		t.Run("ipv6", func(t *testing.T) {
+			address := fakeMulti.GetFakeIPForDomain3("fakednstestipv6.v2fly.org", false, true)
+			assert.Len(t, address, 1, "should be 1 address")
+			assert.True(t, address[0].Family().IsIPv6())
+		})
+		t.Run("ipv46", func(t *testing.T) {
+			address := fakeMulti.GetFakeIPForDomain3("fakednstestipv46.v2fly.org", true, true)
+			assert.Len(t, address, 2, "should be 2 address")
+			assert.True(t, address[0].Family().IsIPv4())
+			assert.True(t, address[1].Family().IsIPv6())
+		})
+	})
+}

app/dns/hosts.go

@@ -2,8 +2,8 @@ package dns
 
 import (
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/matcher/str"
 	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/strmatcher"
 	"github.com/xtls/xray-core/features"
 	"github.com/xtls/xray-core/features/dns"
 )
@@ -11,12 +11,12 @@ import (
 // StaticHosts represents static domain-ip mapping in DNS server.
 type StaticHosts struct {
 	ips      [][]net.Address
-	matchers *str.MatcherGroup
+	matchers *strmatcher.MatcherGroup
 }
 
 // NewStaticHosts creates a new StaticHosts instance.
 func NewStaticHosts(hosts []*Config_HostMapping, legacy map[string]*net.IPOrDomain) (*StaticHosts, error) {
-	g := new(str.MatcherGroup)
+	g := new(strmatcher.MatcherGroup)
 	sh := &StaticHosts{
 		ips:      make([][]net.Address, len(hosts)+len(legacy)+16),
 		matchers: g,
@@ -26,7 +26,7 @@ func NewStaticHosts(hosts []*Config_HostMapping, legacy map[string]*net.IPOrDoma
 		features.PrintDeprecatedFeatureWarning("simple host mapping")
 
 		for domain, ip := range legacy {
-			matcher, err := str.Full.New(domain)
+			matcher, err := strmatcher.Full.New(domain)
 			common.Must(err)
 			id := g.Add(matcher)
 
@@ -49,7 +49,6 @@ func NewStaticHosts(hosts []*Config_HostMapping, legacy map[string]*net.IPOrDoma
 		switch {
 		case len(mapping.ProxiedDomain) > 0:
 			ips = append(ips, net.DomainAddress(mapping.ProxiedDomain))
-
 		case len(mapping.Ip) > 0:
 			for _, ip := range mapping.Ip {
 				addr := net.IPAddress(ip)
@@ -58,7 +57,6 @@ func NewStaticHosts(hosts []*Config_HostMapping, legacy map[string]*net.IPOrDoma
 				}
 				ips = append(ips, addr)
 			}
-
 		default:
 			return nil, newError("neither IP address nor proxied domain specified for domain: ", mapping.Domain).AtWarning()
 		}
@@ -69,7 +67,7 @@ func NewStaticHosts(hosts []*Config_HostMapping, legacy map[string]*net.IPOrDoma
 	return sh, nil
 }
 
-func filterIP(ips []net.Address, option *dns.IPOption) []net.Address {
+func filterIP(ips []net.Address, option dns.IPOption) []net.Address {
 	filtered := make([]net.Address, 0, len(ips))
 	for _, ip := range ips {
 		if (ip.Family().IsIPv4() && option.IPv4Enable) || (ip.Family().IsIPv6() && option.IPv6Enable) {
@@ -84,13 +82,10 @@ func (h *StaticHosts) lookupInternal(domain string) []net.Address {
 	for _, id := range h.matchers.Match(domain) {
 		ips = append(ips, h.ips[id]...)
 	}
-	if len(ips) == 1 && ips[0].Family().IsDomain() {
-		return ips
-	}
 	return ips
 }
 
-func (h *StaticHosts) lookup(domain string, option *dns.IPOption, maxDepth int) []net.Address {
+func (h *StaticHosts) lookup(domain string, option dns.IPOption, maxDepth int) []net.Address {
 	switch addrs := h.lookupInternal(domain); {
 	case len(addrs) == 0: // Not recorded in static hosts, return nil
 		return nil
@@ -109,6 +104,6 @@ func (h *StaticHosts) lookup(domain string, option *dns.IPOption, maxDepth int)
 }
 
 // Lookup returns IP addresses or proxied domain for the given domain, if exists in this StaticHosts.
-func (h *StaticHosts) Lookup(domain string, option *dns.IPOption) []net.Address {
+func (h *StaticHosts) Lookup(domain string, option dns.IPOption) []net.Address {
 	return h.lookup(domain, option, 5)
 }

app/dns/hosts_test.go

@@ -4,10 +4,8 @@ import (
 	"testing"
 
 	"github.com/google/go-cmp/cmp"
-
 	. "github.com/xtls/xray-core/app/dns"
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/matcher/domain"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/features/dns"
 )
@@ -15,35 +13,35 @@ import (
 func TestStaticHosts(t *testing.T) {
 	pb := []*Config_HostMapping{
 		{
-			Type:   domain.MatchingType_Full,
+			Type:   DomainMatchingType_Full,
 			Domain: "example.com",
 			Ip: [][]byte{
 				{1, 1, 1, 1},
 			},
 		},
 		{
-			Type:   domain.MatchingType_Full,
-			Domain: "proxy.example.com",
+			Type:   DomainMatchingType_Full,
+			Domain: "proxy.xray.com",
 			Ip: [][]byte{
 				{1, 2, 3, 4},
 				{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1},
 			},
-			ProxiedDomain: "another-proxy.example.com",
+			ProxiedDomain: "another-proxy.xray.com",
 		},
 		{
-			Type:          domain.MatchingType_Full,
-			Domain:        "proxy2.example.com",
-			ProxiedDomain: "proxy.example.com",
+			Type:          DomainMatchingType_Full,
+			Domain:        "proxy2.xray.com",
+			ProxiedDomain: "proxy.xray.com",
 		},
 		{
-			Type:   domain.MatchingType_Subdomain,
+			Type:   DomainMatchingType_Subdomain,
 			Domain: "example.cn",
 			Ip: [][]byte{
 				{2, 2, 2, 2},
 			},
 		},
 		{
-			Type:   domain.MatchingType_Subdomain,
+			Type:   DomainMatchingType_Subdomain,
 			Domain: "baidu.com",
 			Ip: [][]byte{
 				{127, 0, 0, 1},
@@ -56,7 +54,7 @@ func TestStaticHosts(t *testing.T) {
 	common.Must(err)
 
 	{
-		ips := hosts.Lookup("example.com", &dns.IPOption{
+		ips := hosts.Lookup("example.com", dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 		})
@@ -69,33 +67,33 @@ func TestStaticHosts(t *testing.T) {
 	}
 
 	{
-		domain := hosts.Lookup("proxy.example.com", &dns.IPOption{
+		domain := hosts.Lookup("proxy.xray.com", dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: false,
 		})
 		if len(domain) != 1 {
 			t.Error("expect 1 domain, but got ", len(domain))
 		}
-		if diff := cmp.Diff(domain[0].Domain(), "another-proxy.example.com"); diff != "" {
+		if diff := cmp.Diff(domain[0].Domain(), "another-proxy.xray.com"); diff != "" {
 			t.Error(diff)
 		}
 	}
 
 	{
-		domain := hosts.Lookup("proxy2.example.com", &dns.IPOption{
+		domain := hosts.Lookup("proxy2.xray.com", dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: false,
 		})
 		if len(domain) != 1 {
 			t.Error("expect 1 domain, but got ", len(domain))
 		}
-		if diff := cmp.Diff(domain[0].Domain(), "another-proxy.example.com"); diff != "" {
+		if diff := cmp.Diff(domain[0].Domain(), "another-proxy.xray.com"); diff != "" {
 			t.Error(diff)
 		}
 	}
 
 	{
-		ips := hosts.Lookup("www.example.cn", &dns.IPOption{
+		ips := hosts.Lookup("www.example.cn", dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 		})
@@ -108,7 +106,7 @@ func TestStaticHosts(t *testing.T) {
 	}
 
 	{
-		ips := hosts.Lookup("baidu.com", &dns.IPOption{
+		ips := hosts.Lookup("baidu.com", dns.IPOption{
 			IPv4Enable: false,
 			IPv6Enable: true,
 		})

app/dns/nameserver.go

@@ -6,11 +6,11 @@ import (
 	"strings"
 	"time"
 
+	"github.com/xtls/xray-core/app/router"
 	"github.com/xtls/xray-core/common/errors"
-	"github.com/xtls/xray-core/common/matcher/geoip"
-	"github.com/xtls/xray-core/common/matcher/str"
 	"github.com/xtls/xray-core/common/net"
-	core "github.com/xtls/xray-core/core"
+	"github.com/xtls/xray-core/common/strmatcher"
+	"github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/dns"
 	"github.com/xtls/xray-core/features/routing"
 )
@@ -20,7 +20,7 @@ type Server interface {
 	// Name of the Client.
 	Name() string
 	// QueryIP sends IP queries to its configured server.
-	QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns.IPOption, cs CacheStrategy) ([]net.IP, error)
+	QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns.IPOption, disableCache bool) ([]net.IP, error)
 }
 
 // Client is the interface for DNS client.
@@ -29,7 +29,7 @@ type Client struct {
 	clientIP     net.IP
 	skipFallback bool
 	domains      []string
-	expectIPs    []*geoip.GeoIPMatcher
+	expectIPs    []*router.GeoIPMatcher
 }
 
 var errExpectedIPNonMatch = errors.New("expectIPs not match")
@@ -50,6 +50,10 @@ func NewServer(dest net.Destination, dispatcher routing.Dispatcher) (Server, err
 			return NewDoHLocalNameServer(u), nil
 		case strings.EqualFold(u.Scheme, "quic+local"): // DNS-over-QUIC Local mode
 			return NewQUICNameServer(u)
+		case strings.EqualFold(u.Scheme, "tcp"): // DNS-over-TCP Remote mode
+			return NewTCPNameServer(u, dispatcher)
+		case strings.EqualFold(u.Scheme, "tcp+local"): // DNS-over-TCP Local mode
+			return NewTCPLocalNameServer(u)
 		case strings.EqualFold(u.String(), "fakedns"):
 			return NewFakeDNSServer(), nil
 		}
@@ -64,7 +68,7 @@ func NewServer(dest net.Destination, dispatcher routing.Dispatcher) (Server, err
 }
 
 // NewClient creates a DNS client managing a name server with client IP, domain rules and expected IPs.
-func NewClient(ctx context.Context, ns *NameServer, clientIP net.IP, container geoip.GeoIPMatcherContainer, matcherInfos *[]DomainMatcherInfo, updateDomainRule func(str.Matcher, int, []DomainMatcherInfo) error) (*Client, error) {
+func NewClient(ctx context.Context, ns *NameServer, clientIP net.IP, container router.GeoIPMatcherContainer, matcherInfos *[]*DomainMatcherInfo, updateDomainRule func(strmatcher.Matcher, int, []*DomainMatcherInfo) error) (*Client, error) {
 	client := &Client{}
 
 	err := core.RequireFeatures(ctx, func(dispatcher routing.Dispatcher) error {
@@ -82,8 +86,11 @@ func NewClient(ctx context.Context, ns *NameServer, clientIP net.IP, container g
 			// Because the `localhost` DNS client will apend len(localTLDsAndDotlessDomains) rules into matcherInfos to match `geosite:private` default rule.
 			// But `matcherInfos` has no enough length to add rules, which leads to core panics (rule index out of range).
 			// To avoid this, the length of `matcherInfos` must be equal to the expected, so manually append it with Golang default zero value first for later modification.
+			// Related issues:
+			// https://github.com/v2fly/v2ray-core/issues/529
+			// https://github.com/v2fly/v2ray-core/issues/719
 			for i := 0; i < len(localTLDsAndDotlessDomains); i++ {
-				*matcherInfos = append(*matcherInfos, DomainMatcherInfo{
+				*matcherInfos = append(*matcherInfos, &DomainMatcherInfo{
 					clientIdx:     uint16(0),
 					domainRuleIdx: uint16(0),
 				})
@@ -95,7 +102,7 @@ func NewClient(ctx context.Context, ns *NameServer, clientIP net.IP, container g
 		ruleCurr := 0
 		ruleIter := 0
 		for _, domain := range ns.PrioritizedDomain {
-			domainRule, err := toStrMatcher(domain.Type, domain.Value)
+			domainRule, err := toStrMatcher(domain.Type, domain.Domain)
 			if err != nil {
 				return newError("failed to create prioritized domain").Base(err).AtWarning()
 			}
@@ -121,7 +128,7 @@ func NewClient(ctx context.Context, ns *NameServer, clientIP net.IP, container g
 		}
 
 		// Establish expected IPs
-		var matchers []*geoip.GeoIPMatcher
+		var matchers []*router.GeoIPMatcher
 		for _, geoip := range ns.Geoip {
 			matcher, err := container.Add(geoip)
 			if err != nil {
@@ -141,6 +148,7 @@ func NewClient(ctx context.Context, ns *NameServer, clientIP net.IP, container g
 
 		client.server = server
 		client.clientIP = clientIP
+		client.skipFallback = ns.SkipFallback
 		client.domains = rules
 		client.expectIPs = matchers
 		return nil
@@ -179,9 +187,9 @@ func (c *Client) Name() string {
 }
 
 // QueryIP send DNS query to the name server with the client's IP.
-func (c *Client) QueryIP(ctx context.Context, domain string, option dns.IPOption, cs CacheStrategy) ([]net.IP, error) {
+func (c *Client) QueryIP(ctx context.Context, domain string, option dns.IPOption, disableCache bool) ([]net.IP, error) {
 	ctx, cancel := context.WithTimeout(ctx, 4*time.Second)
-	ips, err := c.server.QueryIP(ctx, domain, c.clientIP, option, cs)
+	ips, err := c.server.QueryIP(ctx, domain, c.clientIP, option, disableCache)
 	cancel()
 
 	if err != nil {

app/dns/nameserver_doh.go

@@ -5,13 +5,14 @@ import (
 	"context"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net/http"
 	"net/url"
 	"sync"
 	"sync/atomic"
 	"time"
 
+	"golang.org/x/net/dns/dnsmessage"
+
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/log"
 	"github.com/xtls/xray-core/common/net"
@@ -23,7 +24,6 @@ import (
 	dns_feature "github.com/xtls/xray-core/features/dns"
 	"github.com/xtls/xray-core/features/routing"
 	"github.com/xtls/xray-core/transport/internet"
-	"golang.org/x/net/dns/dnsmessage"
 )
 
 // DoHNameServer implemented DNS over HTTPS (RFC8484) Wire Format,
@@ -32,17 +32,16 @@ import (
 type DoHNameServer struct {
 	dispatcher routing.Dispatcher
 	sync.RWMutex
-	ips        map[string]record
+	ips        map[string]*record
 	pub        *pubsub.Service
 	cleanup    *task.Periodic
 	reqID      uint32
-	clientIP   net.IP
 	httpClient *http.Client
 	dohURL     string
 	name       string
 }
 
-// NewDoHNameServer creates DOH server object for remote resolving
+// NewDoHNameServer creates DOH server object for remote resolving.
 func NewDoHNameServer(url *url.URL, dispatcher routing.Dispatcher) (*DoHNameServer, error) {
 	newError("DNS: created Remote DOH client for ", url.String()).AtInfo().WriteToLog()
 	s := baseDOHNameServer(url, "DOH")
@@ -80,12 +79,6 @@ func NewDoHNameServer(url *url.URL, dispatcher routing.Dispatcher) (*DoHNameServ
 			if err != nil {
 				return nil, err
 			}
-			log.Record(&log.AccessMessage{
-				From:   "DoH",
-				To:     s.dohURL,
-				Status: log.AccessAccepted,
-				Detour: "local",
-			})
 
 			cc := common.ChainedClosable{}
 			if cw, ok := link.Writer.(common.Closable); ok {
@@ -144,7 +137,7 @@ func NewDoHLocalNameServer(url *url.URL) *DoHNameServer {
 
 func baseDOHNameServer(url *url.URL, prefix string) *DoHNameServer {
 	s := &DoHNameServer{
-		ips:    make(map[string]record),
+		ips:    make(map[string]*record),
 		pub:    pubsub.NewService(),
 		name:   prefix + "//" + url.Host,
 		dohURL: url.String(),
@@ -153,7 +146,6 @@ func baseDOHNameServer(url *url.URL, prefix string) *DoHNameServer {
 		Interval: time.Minute,
 		Execute:  s.Cleanup,
 	}
-
 	return s
 }
 
@@ -189,7 +181,7 @@ func (s *DoHNameServer) Cleanup() error {
 	}
 
 	if len(s.ips) == 0 {
-		s.ips = make(map[string]record)
+		s.ips = make(map[string]*record)
 	}
 
 	return nil
@@ -199,7 +191,10 @@ func (s *DoHNameServer) updateIP(req *dnsRequest, ipRec *IPRecord) {
 	elapsed := time.Since(req.start)
 
 	s.Lock()
-	rec := s.ips[req.domain]
+	rec, found := s.ips[req.domain]
+	if !found {
+		rec = &record{}
+	}
 	updated := false
 
 	switch req.reqType {
@@ -209,7 +204,7 @@ func (s *DoHNameServer) updateIP(req *dnsRequest, ipRec *IPRecord) {
 			updated = true
 		}
 	case dnsmessage.TypeAAAA:
-		addr := make([]net.Address, 0)
+		addr := make([]net.Address, 0, len(ipRec.IP))
 		for _, ip := range ipRec.IP {
 			if len(ip.IP()) == net.IPv6len {
 				addr = append(addr, ip)
@@ -261,7 +256,7 @@ func (s *DoHNameServer) sendQuery(ctx context.Context, domain string, clientIP n
 		go func(r *dnsRequest) {
 			// generate new context for each req, using same context
 			// may cause reqs all aborted if any one encounter an error
-			dnsCtx := context.Background()
+			dnsCtx := ctx
 
 			// reserve internal dns server requested Inbound
 			if inbound := session.InboundFromContext(ctx); inbound != nil {
@@ -319,11 +314,11 @@ func (s *DoHNameServer) dohHTTPSContext(ctx context.Context, b []byte) ([]byte,
 
 	defer resp.Body.Close()
 	if resp.StatusCode != http.StatusOK {
-		io.Copy(ioutil.Discard, resp.Body) // flush resp.Body so that the conn is reusable
+		io.Copy(io.Discard, resp.Body) // flush resp.Body so that the conn is reusable
 		return nil, fmt.Errorf("DOH server returned code %d", resp.StatusCode)
 	}
 
-	return ioutil.ReadAll(resp.Body)
+	return io.ReadAll(resp.Body)
 }
 
 func (s *DoHNameServer) findIPsForDomain(domain string, option dns_feature.IPOption) ([]net.IP, error) {
@@ -335,30 +330,30 @@ func (s *DoHNameServer) findIPsForDomain(domain string, option dns_feature.IPOpt
 		return nil, errRecordNotFound
 	}
 
+	var err4 error
+	var err6 error
 	var ips []net.Address
-	var lastErr error
-	if option.IPv6Enable && record.AAAA != nil && record.AAAA.RCode == dnsmessage.RCodeSuccess {
-		aaaa, err := record.AAAA.getIPs()
-		if err != nil {
-			lastErr = err
-		}
-		ips = append(ips, aaaa...)
+	var ip6 []net.Address
+
+	if option.IPv4Enable {
+		ips, err4 = record.A.getIPs()
 	}
 
-	if option.IPv4Enable && record.A != nil && record.A.RCode == dnsmessage.RCodeSuccess {
-		a, err := record.A.getIPs()
-		if err != nil {
-			lastErr = err
-		}
-		ips = append(ips, a...)
+	if option.IPv6Enable {
+		ip6, err6 = record.AAAA.getIPs()
+		ips = append(ips, ip6...)
 	}
 
 	if len(ips) > 0 {
 		return toNetIP(ips)
 	}
 
-	if lastErr != nil {
-		return nil, lastErr
+	if err4 != nil {
+		return nil, err4
+	}
+
+	if err6 != nil {
+		return nil, err6
 	}
 
 	if (option.IPv4Enable && record.A != nil) || (option.IPv6Enable && record.AAAA != nil) {
@@ -369,19 +364,17 @@ func (s *DoHNameServer) findIPsForDomain(domain string, option dns_feature.IPOpt
 }
 
 // QueryIP implements Server.
-func (s *DoHNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, cs CacheStrategy) ([]net.IP, error) { // nolint: dupl
+func (s *DoHNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, disableCache bool) ([]net.IP, error) { // nolint: dupl
 	fqdn := Fqdn(domain)
 
-	if cs == CacheStrategy_Cache_DISABLE {
+	if disableCache {
 		newError("DNS cache is disabled. Querying IP for ", domain, " at ", s.name).AtDebug().WriteToLog()
 	} else {
 		ips, err := s.findIPsForDomain(fqdn, option)
 		if err != errRecordNotFound {
-			if cs == CacheStrategy_Cache_NOERROR && err == nil {
-				newError(s.name, " cache HIT ", domain, " -> ", ips).Base(err).AtDebug().WriteToLog()
-				log.Record(&log.DNSLog{s.name, domain, ips, log.DNSCacheHit, 0, err})
-				return ips, err
-			}
+			newError(s.name, " cache HIT ", domain, " -> ", ips).Base(err).AtDebug().WriteToLog()
+			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSCacheHit, Elapsed: 0, Error: err})
+			return ips, err
 		}
 	}
 
@@ -417,7 +410,7 @@ func (s *DoHNameServer) QueryIP(ctx context.Context, domain string, clientIP net
 	for {
 		ips, err := s.findIPsForDomain(fqdn, option)
 		if err != errRecordNotFound {
-			log.Record(&log.DNSLog{s.name, domain, ips, log.DNSQueried, time.Since(start), err})
+			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSQueried, Elapsed: time.Since(start), Error: err})
 			return ips, err
 		}
 

app/dns/nameserver_doh_test.go

@@ -23,7 +23,7 @@ func TestDOHNameServer(t *testing.T) {
 	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
-	}, CacheStrategy_Cache_ALL)
+	}, false)
 	cancel()
 	common.Must(err)
 	if len(ips) == 0 {
@@ -40,18 +40,18 @@ func TestDOHNameServerWithCache(t *testing.T) {
 	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
-	}, CacheStrategy_Cache_ALL)
+	}, false)
 	cancel()
 	common.Must(err)
 	if len(ips) == 0 {
 		t.Error("expect some ips, but got 0")
 	}
 
-	ctx2, cancel := context.WithTimeout(context.Background(), time.Second*2)
+	ctx2, cancel := context.WithTimeout(context.Background(), time.Second*5)
 	ips2, err := s.QueryIP(ctx2, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
-	}, CacheStrategy_Cache_ALL)
+	}, true)
 	cancel()
 	common.Must(err)
 	if r := cmp.Diff(ips2, ips); r != "" {

app/dns/nameserver_fakedns.go

@@ -16,13 +16,11 @@ func NewFakeDNSServer() *FakeDNSServer {
 	return &FakeDNSServer{}
 }
 
-const FakeDNSName = "FakeDNS"
-
 func (FakeDNSServer) Name() string {
-	return FakeDNSName
+	return "FakeDNS"
 }
 
-func (f *FakeDNSServer) QueryIP(ctx context.Context, domain string, _ net.IP, _ dns.IPOption, _ CacheStrategy) ([]net.IP, error) {
+func (f *FakeDNSServer) QueryIP(ctx context.Context, domain string, _ net.IP, opt dns.IPOption, _ bool) ([]net.IP, error) {
 	if f.fakeDNSEngine == nil {
 		if err := core.RequireFeatures(ctx, func(fd dns.FakeDNSEngine) {
 			f.fakeDNSEngine = fd
@@ -30,7 +28,12 @@ func (f *FakeDNSServer) QueryIP(ctx context.Context, domain string, _ net.IP, _
 			return nil, newError("Unable to locate a fake DNS Engine").Base(err).AtError()
 		}
 	}
-	ips := f.fakeDNSEngine.GetFakeIPForDomain(domain)
+	var ips []net.Address
+	if fkr0, ok := f.fakeDNSEngine.(dns.FakeDNSEngineRev0); ok {
+		ips = fkr0.GetFakeIPForDomain3(domain, opt.IPv4Enable, opt.IPv6Enable)
+	} else {
+		ips = f.fakeDNSEngine.GetFakeIPForDomain(domain)
+	}
 
 	netIP, err := toNetIP(ips)
 	if err != nil {
@@ -39,5 +42,8 @@ func (f *FakeDNSServer) QueryIP(ctx context.Context, domain string, _ net.IP, _
 
 	newError(f.Name(), " got answer: ", domain, " -> ", ips).AtInfo().WriteToLog()
 
-	return netIP, nil
+	if len(netIP) > 0 {
+		return netIP, nil
+	}
+	return nil, dns.ErrEmptyResponse
 }

app/dns/nameserver_local.go

@@ -2,9 +2,11 @@ package dns
 
 import (
 	"context"
+	"strings"
+
+	"github.com/xtls/xray-core/features/dns"
 
 	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/features/dns"
 	"github.com/xtls/xray-core/features/dns/localdns"
 )
 
@@ -13,25 +15,21 @@ type LocalNameServer struct {
 	client *localdns.Client
 }
 
-// QueryIP implements Server.
-func (s *LocalNameServer) QueryIP(_ context.Context, domain string, _ net.IP, option dns.IPOption, _ CacheStrategy) ([]net.IP, error) {
-	var ips []net.IP
-	var err error
+const errEmptyResponse = "No address associated with hostname"
 
-	switch {
-	case option.IPv4Enable && option.IPv6Enable:
-		ips, err = s.client.LookupIP(domain)
-	case option.IPv4Enable:
-		ips, err = s.client.LookupIPv4(domain)
-	case option.IPv6Enable:
-		ips, err = s.client.LookupIPv6(domain)
+// QueryIP implements Server.
+func (s *LocalNameServer) QueryIP(_ context.Context, domain string, _ net.IP, option dns.IPOption, _ bool) (ips []net.IP, err error) {
+	ips, err = s.client.LookupIP(domain, option)
+
+	if err != nil && strings.HasSuffix(err.Error(), errEmptyResponse) {
+		err = dns.ErrEmptyResponse
 	}
 
 	if len(ips) > 0 {
 		newError("Localhost got answer: ", domain, " -> ", ips).AtInfo().WriteToLog()
 	}
 
-	return ips, err
+	return
 }
 
 // Name implements Server.

app/dns/nameserver_local_test.go

@@ -5,19 +5,21 @@ import (
 	"testing"
 	"time"
 
+	"github.com/xtls/xray-core/common/net"
+
 	. "github.com/xtls/xray-core/app/dns"
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/features/dns"
 )
 
 func TestLocalNameServer(t *testing.T) {
 	s := NewLocalNameServer()
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
 	ips, err := s.QueryIP(ctx, "google.com", net.IP{}, dns.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
-	}, CacheStrategy_Cache_ALL)
+		FakeEnable: false,
+	}, false)
 	cancel()
 	common.Must(err)
 	if len(ips) == 0 {

app/dns/nameserver_quic.go

@@ -8,12 +8,8 @@ import (
 	"time"
 
 	"github.com/lucas-clemente/quic-go"
-	"golang.org/x/net/dns/dnsmessage"
-	"golang.org/x/net/http2"
-
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
-	"github.com/xtls/xray-core/common/log"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/protocol/dns"
 	"github.com/xtls/xray-core/common/session"
@@ -21,21 +17,25 @@ import (
 	"github.com/xtls/xray-core/common/task"
 	dns_feature "github.com/xtls/xray-core/features/dns"
 	"github.com/xtls/xray-core/transport/internet/tls"
+	"golang.org/x/net/dns/dnsmessage"
+	"golang.org/x/net/http2"
 )
 
 // NextProtoDQ - During connection establishment, DNS/QUIC support is indicated
 // by selecting the ALPN token "dq" in the crypto handshake.
 const NextProtoDQ = "doq-i00"
 
+const handshakeTimeout = time.Second * 8
+
 // QUICNameServer implemented DNS over QUIC
 type QUICNameServer struct {
 	sync.RWMutex
-	ips         map[string]record
+	ips         map[string]*record
 	pub         *pubsub.Service
 	cleanup     *task.Periodic
 	reqID       uint32
 	name        string
-	destination net.Destination
+	destination *net.Destination
 	session     quic.Session
 }
 
@@ -51,13 +51,13 @@ func NewQUICNameServer(url *url.URL) (*QUICNameServer, error) {
 			return nil, err
 		}
 	}
-	dest := net.UDPDestination(net.DomainAddress(url.Hostname()), port)
+	dest := net.UDPDestination(net.ParseAddress(url.Hostname()), port)
 
 	s := &QUICNameServer{
-		ips:         make(map[string]record),
+		ips:         make(map[string]*record),
 		pub:         pubsub.NewService(),
 		name:        url.String(),
-		destination: dest,
+		destination: &dest,
 	}
 	s.cleanup = &task.Periodic{
 		Interval: time.Minute,
@@ -99,7 +99,7 @@ func (s *QUICNameServer) Cleanup() error {
 	}
 
 	if len(s.ips) == 0 {
-		s.ips = make(map[string]record)
+		s.ips = make(map[string]*record)
 	}
 
 	return nil
@@ -109,7 +109,10 @@ func (s *QUICNameServer) updateIP(req *dnsRequest, ipRec *IPRecord) {
 	elapsed := time.Since(req.start)
 
 	s.Lock()
-	rec := s.ips[req.domain]
+	rec, found := s.ips[req.domain]
+	if !found {
+		rec = &record{}
+	}
 	updated := false
 
 	switch req.reqType {
@@ -166,22 +169,17 @@ func (s *QUICNameServer) sendQuery(ctx context.Context, domain string, clientIP
 		go func(r *dnsRequest) {
 			// generate new context for each req, using same context
 			// may cause reqs all aborted if any one encounter an error
-			dnsCtx := context.Background()
+			dnsCtx := ctx
 
 			// reserve internal dns server requested Inbound
 			if inbound := session.InboundFromContext(ctx); inbound != nil {
 				dnsCtx = session.ContextWithInbound(dnsCtx, inbound)
 			}
+
 			dnsCtx = session.ContextWithContent(dnsCtx, &session.Content{
 				Protocol:       "quic",
 				SkipDNSResolve: true,
 			})
-			dnsCtx = log.ContextWithAccessMessage(dnsCtx, &log.AccessMessage{
-				From:   "DoQ",
-				To:     s.name,
-				Status: log.AccessAccepted,
-				Reason: "",
-			})
 
 			var cancel context.CancelFunc
 			dnsCtx, cancel = context.WithDeadline(dnsCtx, deadline)
@@ -234,30 +232,30 @@ func (s *QUICNameServer) findIPsForDomain(domain string, option dns_feature.IPOp
 		return nil, errRecordNotFound
 	}
 
+	var err4 error
+	var err6 error
 	var ips []net.Address
-	var lastErr error
-	if option.IPv6Enable && record.AAAA != nil && record.AAAA.RCode == dnsmessage.RCodeSuccess {
-		aaaa, err := record.AAAA.getIPs()
-		if err != nil {
-			lastErr = err
-		}
-		ips = append(ips, aaaa...)
+	var ip6 []net.Address
+
+	if option.IPv4Enable {
+		ips, err4 = record.A.getIPs()
 	}
 
-	if option.IPv4Enable && record.A != nil && record.A.RCode == dnsmessage.RCodeSuccess {
-		a, err := record.A.getIPs()
-		if err != nil {
-			lastErr = err
-		}
-		ips = append(ips, a...)
+	if option.IPv6Enable {
+		ip6, err6 = record.AAAA.getIPs()
+		ips = append(ips, ip6...)
 	}
 
 	if len(ips) > 0 {
 		return toNetIP(ips)
 	}
 
-	if lastErr != nil {
-		return nil, lastErr
+	if err4 != nil {
+		return nil, err4
+	}
+
+	if err6 != nil {
+		return nil, err6
 	}
 
 	if (option.IPv4Enable && record.A != nil) || (option.IPv6Enable && record.AAAA != nil) {
@@ -268,19 +266,16 @@ func (s *QUICNameServer) findIPsForDomain(domain string, option dns_feature.IPOp
 }
 
 // QueryIP is called from dns.Server->queryIPTimeout
-func (s *QUICNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, cs CacheStrategy) ([]net.IP, error) {
+func (s *QUICNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, disableCache bool) ([]net.IP, error) {
 	fqdn := Fqdn(domain)
 
-	if cs == CacheStrategy_Cache_DISABLE {
+	if disableCache {
 		newError("DNS cache is disabled. Querying IP for ", domain, " at ", s.name).AtDebug().WriteToLog()
 	} else {
 		ips, err := s.findIPsForDomain(fqdn, option)
 		if err != errRecordNotFound {
-			if cs == CacheStrategy_Cache_NOERROR && err == nil {
-				newError(s.name, " cache HIT ", domain, " -> ", ips).Base(err).AtDebug().WriteToLog()
-				log.Record(&log.DNSLog{s.name, domain, ips, log.DNSCacheHit, 0, err})
-				return ips, err
-			}
+			newError(s.name, " cache HIT ", domain, " -> ", ips).Base(err).AtDebug().WriteToLog()
+			return ips, err
 		}
 	}
 
@@ -311,12 +306,10 @@ func (s *QUICNameServer) QueryIP(ctx context.Context, domain string, clientIP ne
 		close(done)
 	}()
 	s.sendQuery(ctx, fqdn, clientIP, option)
-	start := time.Now()
 
 	for {
 		ips, err := s.findIPsForDomain(fqdn, option)
 		if err != errRecordNotFound {
-			log.Record(&log.DNSLog{s.name, domain, ips, log.DNSQueried, time.Since(start), err})
 			return ips, err
 		}
 
@@ -373,7 +366,9 @@ func (s *QUICNameServer) getSession() (quic.Session, error) {
 
 func (s *QUICNameServer) openSession() (quic.Session, error) {
 	tlsConfig := tls.Config{}
-	quicConfig := &quic.Config{}
+	quicConfig := &quic.Config{
+		HandshakeIdleTimeout: handshakeTimeout,
+	}
 
 	session, err := quic.DialAddrContext(context.Background(), s.destination.NetAddr(), tlsConfig.GetTLSConfig(tls.WithNextProto("http/1.1", http2.NextProtoTLS, NextProtoDQ)), quicConfig)
 	if err != nil {

app/dns/nameserver_quic_test.go

@@ -6,12 +6,13 @@ import (
 	"testing"
 	"time"
 
+	"github.com/xtls/xray-core/features/dns"
+
 	"github.com/google/go-cmp/cmp"
 
 	. "github.com/xtls/xray-core/app/dns"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/net"
-	dns_feature "github.com/xtls/xray-core/features/dns"
 )
 
 func TestQUICNameServer(t *testing.T) {
@@ -19,28 +20,11 @@ func TestQUICNameServer(t *testing.T) {
 	common.Must(err)
 	s, err := NewQUICNameServer(url)
 	common.Must(err)
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
+	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
-	}, CacheStrategy_Cache_ALL)
-	cancel()
-	common.Must(err)
-	if len(ips) == 0 {
-		t.Error("expect some ips, but got 0")
-	}
-}
-
-func TestQUICNameServerWithCache(t *testing.T) {
-	url, err := url.Parse("quic://dns.adguard.com")
-	common.Must(err)
-	s, err := NewQUICNameServer(url)
-	common.Must(err)
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
-		IPv4Enable: true,
-		IPv6Enable: true,
-	}, CacheStrategy_Cache_ALL)
+	}, false)
 	cancel()
 	common.Must(err)
 	if len(ips) == 0 {
@@ -48,10 +32,10 @@ func TestQUICNameServerWithCache(t *testing.T) {
 	}
 
 	ctx2, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	ips2, err := s.QueryIP(ctx2, "google.com", net.IP(nil), dns_feature.IPOption{
+	ips2, err := s.QueryIP(ctx2, "google.com", net.IP(nil), dns.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
-	}, CacheStrategy_Cache_ALL)
+	}, true)
 	cancel()
 	common.Must(err)
 	if r := cmp.Diff(ips2, ips); r != "" {

app/dns/nameserver_tcp.go

@@ -0,0 +1,362 @@
+package dns
+
+import (
+	"bytes"
+	"context"
+	"encoding/binary"
+	"net/url"
+	"sync"
+	"sync/atomic"
+	"time"
+
+	"golang.org/x/net/dns/dnsmessage"
+
+	"github.com/xtls/xray-core/common"
+	"github.com/xtls/xray-core/common/buf"
+	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/net/cnc"
+	"github.com/xtls/xray-core/common/protocol/dns"
+	"github.com/xtls/xray-core/common/session"
+	"github.com/xtls/xray-core/common/signal/pubsub"
+	"github.com/xtls/xray-core/common/task"
+	dns_feature "github.com/xtls/xray-core/features/dns"
+	"github.com/xtls/xray-core/features/routing"
+	"github.com/xtls/xray-core/transport/internet"
+)
+
+// TCPNameServer implemented DNS over TCP (RFC7766).
+type TCPNameServer struct {
+	sync.RWMutex
+	name        string
+	destination *net.Destination
+	ips         map[string]*record
+	pub         *pubsub.Service
+	cleanup     *task.Periodic
+	reqID       uint32
+	dial        func(context.Context) (net.Conn, error)
+}
+
+// NewTCPNameServer creates DNS over TCP server object for remote resolving.
+func NewTCPNameServer(url *url.URL, dispatcher routing.Dispatcher) (*TCPNameServer, error) {
+	s, err := baseTCPNameServer(url, "TCP")
+	if err != nil {
+		return nil, err
+	}
+
+	s.dial = func(ctx context.Context) (net.Conn, error) {
+		link, err := dispatcher.Dispatch(ctx, *s.destination)
+		if err != nil {
+			return nil, err
+		}
+
+		return cnc.NewConnection(
+			cnc.ConnectionInputMulti(link.Writer),
+			cnc.ConnectionOutputMulti(link.Reader),
+		), nil
+	}
+
+	return s, nil
+}
+
+// NewTCPLocalNameServer creates DNS over TCP client object for local resolving
+func NewTCPLocalNameServer(url *url.URL) (*TCPNameServer, error) {
+	s, err := baseTCPNameServer(url, "TCPL")
+	if err != nil {
+		return nil, err
+	}
+
+	s.dial = func(ctx context.Context) (net.Conn, error) {
+		return internet.DialSystem(ctx, *s.destination, nil)
+	}
+
+	return s, nil
+}
+
+func baseTCPNameServer(url *url.URL, prefix string) (*TCPNameServer, error) {
+	var err error
+	port := net.Port(53)
+	if url.Port() != "" {
+		port, err = net.PortFromString(url.Port())
+		if err != nil {
+			return nil, err
+		}
+	}
+	dest := net.TCPDestination(net.ParseAddress(url.Hostname()), port)
+
+	s := &TCPNameServer{
+		destination: &dest,
+		ips:         make(map[string]*record),
+		pub:         pubsub.NewService(),
+		name:        prefix + "//" + dest.NetAddr(),
+	}
+	s.cleanup = &task.Periodic{
+		Interval: time.Minute,
+		Execute:  s.Cleanup,
+	}
+
+	return s, nil
+}
+
+// Name implements Server.
+func (s *TCPNameServer) Name() string {
+	return s.name
+}
+
+// Cleanup clears expired items from cache
+func (s *TCPNameServer) Cleanup() error {
+	now := time.Now()
+	s.Lock()
+	defer s.Unlock()
+
+	if len(s.ips) == 0 {
+		return newError("nothing to do. stopping...")
+	}
+
+	for domain, record := range s.ips {
+		if record.A != nil && record.A.Expire.Before(now) {
+			record.A = nil
+		}
+		if record.AAAA != nil && record.AAAA.Expire.Before(now) {
+			record.AAAA = nil
+		}
+
+		if record.A == nil && record.AAAA == nil {
+			newError(s.name, " cleanup ", domain).AtDebug().WriteToLog()
+			delete(s.ips, domain)
+		} else {
+			s.ips[domain] = record
+		}
+	}
+
+	if len(s.ips) == 0 {
+		s.ips = make(map[string]*record)
+	}
+
+	return nil
+}
+
+func (s *TCPNameServer) updateIP(req *dnsRequest, ipRec *IPRecord) {
+	elapsed := time.Since(req.start)
+
+	s.Lock()
+	rec, found := s.ips[req.domain]
+	if !found {
+		rec = &record{}
+	}
+	updated := false
+
+	switch req.reqType {
+	case dnsmessage.TypeA:
+		if isNewer(rec.A, ipRec) {
+			rec.A = ipRec
+			updated = true
+		}
+	case dnsmessage.TypeAAAA:
+		addr := make([]net.Address, 0)
+		for _, ip := range ipRec.IP {
+			if len(ip.IP()) == net.IPv6len {
+				addr = append(addr, ip)
+			}
+		}
+		ipRec.IP = addr
+		if isNewer(rec.AAAA, ipRec) {
+			rec.AAAA = ipRec
+			updated = true
+		}
+	}
+	newError(s.name, " got answer: ", req.domain, " ", req.reqType, " -> ", ipRec.IP, " ", elapsed).AtInfo().WriteToLog()
+
+	if updated {
+		s.ips[req.domain] = rec
+	}
+	switch req.reqType {
+	case dnsmessage.TypeA:
+		s.pub.Publish(req.domain+"4", nil)
+	case dnsmessage.TypeAAAA:
+		s.pub.Publish(req.domain+"6", nil)
+	}
+	s.Unlock()
+	common.Must(s.cleanup.Start())
+}
+
+func (s *TCPNameServer) newReqID() uint16 {
+	return uint16(atomic.AddUint32(&s.reqID, 1))
+}
+
+func (s *TCPNameServer) sendQuery(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption) {
+	newError(s.name, " querying DNS for: ", domain).AtDebug().WriteToLog(session.ExportIDToError(ctx))
+
+	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(clientIP))
+
+	var deadline time.Time
+	if d, ok := ctx.Deadline(); ok {
+		deadline = d
+	} else {
+		deadline = time.Now().Add(time.Second * 5)
+	}
+
+	for _, req := range reqs {
+		go func(r *dnsRequest) {
+			dnsCtx := ctx
+
+			if inbound := session.InboundFromContext(ctx); inbound != nil {
+				dnsCtx = session.ContextWithInbound(dnsCtx, inbound)
+			}
+
+			dnsCtx = session.ContextWithContent(dnsCtx, &session.Content{
+				Protocol:       "dns",
+				SkipDNSResolve: true,
+			})
+
+			var cancel context.CancelFunc
+			dnsCtx, cancel = context.WithDeadline(dnsCtx, deadline)
+			defer cancel()
+
+			b, err := dns.PackMessage(r.msg)
+			if err != nil {
+				newError("failed to pack dns query").Base(err).AtError().WriteToLog()
+				return
+			}
+
+			conn, err := s.dial(dnsCtx)
+			if err != nil {
+				newError("failed to dial namesever").Base(err).AtError().WriteToLog()
+				return
+			}
+			defer conn.Close()
+			dnsReqBuf := buf.New()
+			binary.Write(dnsReqBuf, binary.BigEndian, uint16(b.Len()))
+			dnsReqBuf.Write(b.Bytes())
+			b.Release()
+
+			_, err = conn.Write(dnsReqBuf.Bytes())
+			if err != nil {
+				newError("failed to send query").Base(err).AtError().WriteToLog()
+				return
+			}
+			dnsReqBuf.Release()
+
+			respBuf := buf.New()
+			defer respBuf.Release()
+			n, err := respBuf.ReadFullFrom(conn, 2)
+			if err != nil && n == 0 {
+				newError("failed to read response length").Base(err).AtError().WriteToLog()
+				return
+			}
+			var length int16
+			err = binary.Read(bytes.NewReader(respBuf.Bytes()), binary.BigEndian, &length)
+			if err != nil {
+				newError("failed to parse response length").Base(err).AtError().WriteToLog()
+				return
+			}
+			respBuf.Clear()
+			n, err = respBuf.ReadFullFrom(conn, int32(length))
+			if err != nil && n == 0 {
+				newError("failed to read response length").Base(err).AtError().WriteToLog()
+				return
+			}
+
+			rec, err := parseResponse(respBuf.Bytes())
+			if err != nil {
+				newError("failed to parse DNS over TCP response").Base(err).AtError().WriteToLog()
+				return
+			}
+
+			s.updateIP(r, rec)
+		}(req)
+	}
+}
+
+func (s *TCPNameServer) findIPsForDomain(domain string, option dns_feature.IPOption) ([]net.IP, error) {
+	s.RLock()
+	record, found := s.ips[domain]
+	s.RUnlock()
+
+	if !found {
+		return nil, errRecordNotFound
+	}
+
+	var err4 error
+	var err6 error
+	var ips []net.Address
+	var ip6 []net.Address
+
+	if option.IPv4Enable {
+		ips, err4 = record.A.getIPs()
+	}
+
+	if option.IPv6Enable {
+		ip6, err6 = record.AAAA.getIPs()
+		ips = append(ips, ip6...)
+	}
+
+	if len(ips) > 0 {
+		return toNetIP(ips)
+	}
+
+	if err4 != nil {
+		return nil, err4
+	}
+
+	if err6 != nil {
+		return nil, err6
+	}
+
+	return nil, dns_feature.ErrEmptyResponse
+}
+
+// QueryIP implements Server.
+func (s *TCPNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, disableCache bool) ([]net.IP, error) {
+	fqdn := Fqdn(domain)
+
+	if disableCache {
+		newError("DNS cache is disabled. Querying IP for ", domain, " at ", s.name).AtDebug().WriteToLog()
+	} else {
+		ips, err := s.findIPsForDomain(fqdn, option)
+		if err != errRecordNotFound {
+			newError(s.name, " cache HIT ", domain, " -> ", ips).Base(err).AtDebug().WriteToLog()
+			return ips, err
+		}
+	}
+
+	// ipv4 and ipv6 belong to different subscription groups
+	var sub4, sub6 *pubsub.Subscriber
+	if option.IPv4Enable {
+		sub4 = s.pub.Subscribe(fqdn + "4")
+		defer sub4.Close()
+	}
+	if option.IPv6Enable {
+		sub6 = s.pub.Subscribe(fqdn + "6")
+		defer sub6.Close()
+	}
+	done := make(chan interface{})
+	go func() {
+		if sub4 != nil {
+			select {
+			case <-sub4.Wait():
+			case <-ctx.Done():
+			}
+		}
+		if sub6 != nil {
+			select {
+			case <-sub6.Wait():
+			case <-ctx.Done():
+			}
+		}
+		close(done)
+	}()
+	s.sendQuery(ctx, fqdn, clientIP, option)
+
+	for {
+		ips, err := s.findIPsForDomain(fqdn, option)
+		if err != errRecordNotFound {
+			return ips, err
+		}
+
+		select {
+		case <-ctx.Done():
+			return nil, ctx.Err()
+		case <-done:
+		}
+	}
+}

app/dns/nameserver_tcp_test.go

@@ -0,0 +1,60 @@
+package dns_test
+
+import (
+	"context"
+	"net/url"
+	"testing"
+	"time"
+
+	"github.com/google/go-cmp/cmp"
+
+	. "github.com/xtls/xray-core/app/dns"
+	"github.com/xtls/xray-core/common"
+	"github.com/xtls/xray-core/common/net"
+	dns_feature "github.com/xtls/xray-core/features/dns"
+)
+
+func TestTCPLocalNameServer(t *testing.T) {
+	url, err := url.Parse("tcp+local://8.8.8.8")
+	common.Must(err)
+	s, err := NewTCPLocalNameServer(url)
+	common.Must(err)
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
+	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
+		IPv4Enable: true,
+		IPv6Enable: true,
+	}, false)
+	cancel()
+	common.Must(err)
+	if len(ips) == 0 {
+		t.Error("expect some ips, but got 0")
+	}
+}
+
+func TestTCPLocalNameServerWithCache(t *testing.T) {
+	url, err := url.Parse("tcp+local://8.8.8.8")
+	common.Must(err)
+	s, err := NewTCPLocalNameServer(url)
+	common.Must(err)
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
+	ips, err := s.QueryIP(ctx, "google.com", net.IP(nil), dns_feature.IPOption{
+		IPv4Enable: true,
+		IPv6Enable: true,
+	}, false)
+	cancel()
+	common.Must(err)
+	if len(ips) == 0 {
+		t.Error("expect some ips, but got 0")
+	}
+
+	ctx2, cancel := context.WithTimeout(context.Background(), time.Second*5)
+	ips2, err := s.QueryIP(ctx2, "google.com", net.IP(nil), dns_feature.IPOption{
+		IPv4Enable: true,
+		IPv6Enable: true,
+	}, true)
+	cancel()
+	common.Must(err)
+	if r := cmp.Diff(ips2, ips); r != "" {
+		t.Fatal(r)
+	}
+}

app/dns/nameserver_udp.go

@@ -7,6 +7,8 @@ import (
 	"sync/atomic"
 	"time"
 
+	"golang.org/x/net/dns/dnsmessage"
+
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/log"
 	"github.com/xtls/xray-core/common/net"
@@ -18,15 +20,15 @@ import (
 	dns_feature "github.com/xtls/xray-core/features/dns"
 	"github.com/xtls/xray-core/features/routing"
 	"github.com/xtls/xray-core/transport/internet/udp"
-	"golang.org/x/net/dns/dnsmessage"
 )
 
+// ClassicNameServer implemented traditional UDP DNS.
 type ClassicNameServer struct {
 	sync.RWMutex
 	name      string
-	address   net.Destination
-	ips       map[string]record
-	requests  map[uint16]dnsRequest
+	address   *net.Destination
+	ips       map[string]*record
+	requests  map[uint16]*dnsRequest
 	pub       *pubsub.Service
 	udpServer *udp.Dispatcher
 	cleanup   *task.Periodic
@@ -41,9 +43,9 @@ func NewClassicNameServer(address net.Destination, dispatcher routing.Dispatcher
 	}
 
 	s := &ClassicNameServer{
-		address:  address,
-		ips:      make(map[string]record),
-		requests: make(map[uint16]dnsRequest),
+		address:  &address,
+		ips:      make(map[string]*record),
+		requests: make(map[uint16]*dnsRequest),
 		pub:      pubsub.NewService(),
 		name:     strings.ToUpper(address.String()),
 	}
@@ -80,6 +82,7 @@ func (s *ClassicNameServer) Cleanup() error {
 		}
 
 		if record.A == nil && record.AAAA == nil {
+			newError(s.name, " cleanup ", domain).AtDebug().WriteToLog()
 			delete(s.ips, domain)
 		} else {
 			s.ips[domain] = record
@@ -87,7 +90,7 @@ func (s *ClassicNameServer) Cleanup() error {
 	}
 
 	if len(s.ips) == 0 {
-		s.ips = make(map[string]record)
+		s.ips = make(map[string]*record)
 	}
 
 	for id, req := range s.requests {
@@ -97,7 +100,7 @@ func (s *ClassicNameServer) Cleanup() error {
 	}
 
 	if len(s.requests) == 0 {
-		s.requests = make(map[uint16]dnsRequest)
+		s.requests = make(map[uint16]*dnsRequest)
 	}
 
 	return nil
@@ -135,15 +138,17 @@ func (s *ClassicNameServer) HandleResponse(ctx context.Context, packet *udp_prot
 	elapsed := time.Since(req.start)
 	newError(s.name, " got answer: ", req.domain, " ", req.reqType, " -> ", ipRec.IP, " ", elapsed).AtInfo().WriteToLog()
 	if len(req.domain) > 0 && (rec.A != nil || rec.AAAA != nil) {
-		s.updateIP(req.domain, rec)
+		s.updateIP(req.domain, &rec)
 	}
 }
 
-func (s *ClassicNameServer) updateIP(domain string, newRec record) {
+func (s *ClassicNameServer) updateIP(domain string, newRec *record) {
 	s.Lock()
 
-	newError(s.name, " updating IP records for domain:", domain).AtDebug().WriteToLog()
-	rec := s.ips[domain]
+	rec, found := s.ips[domain]
+	if !found {
+		rec = &record{}
+	}
 
 	updated := false
 	if isNewer(rec.A, newRec.A) {
@@ -156,6 +161,7 @@ func (s *ClassicNameServer) updateIP(domain string, newRec record) {
 	}
 
 	if updated {
+		newError(s.name, " updating IP records for domain:", domain).AtDebug().WriteToLog()
 		s.ips[domain] = rec
 	}
 	if newRec.A != nil {
@@ -178,7 +184,7 @@ func (s *ClassicNameServer) addPendingRequest(req *dnsRequest) {
 
 	id := req.msg.ID
 	req.expire = time.Now().Add(time.Second * 8)
-	s.requests[id] = *req
+	s.requests[id] = req
 }
 
 func (s *ClassicNameServer) sendQuery(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption) {
@@ -193,6 +199,7 @@ func (s *ClassicNameServer) sendQuery(ctx context.Context, domain string, client
 		if inbound := session.InboundFromContext(ctx); inbound != nil {
 			udpCtx = session.ContextWithInbound(udpCtx, inbound)
 		}
+
 		udpCtx = session.ContextWithContent(udpCtx, &session.Content{
 			Protocol: "dns",
 		})
@@ -202,7 +209,7 @@ func (s *ClassicNameServer) sendQuery(ctx context.Context, domain string, client
 			Status: log.AccessAccepted,
 			Reason: "",
 		})
-		s.udpServer.Dispatch(udpCtx, s.address, b)
+		s.udpServer.Dispatch(udpCtx, *s.address, b)
 	}
 }
 
@@ -215,49 +222,47 @@ func (s *ClassicNameServer) findIPsForDomain(domain string, option dns_feature.I
 		return nil, errRecordNotFound
 	}
 
+	var err4 error
+	var err6 error
 	var ips []net.Address
-	var lastErr error
+	var ip6 []net.Address
+
 	if option.IPv4Enable {
-		a, err := record.A.getIPs()
-		if err != nil {
-			lastErr = err
-		}
-		ips = append(ips, a...)
+		ips, err4 = record.A.getIPs()
 	}
 
 	if option.IPv6Enable {
-		aaaa, err := record.AAAA.getIPs()
-		if err != nil {
-			lastErr = err
-		}
-		ips = append(ips, aaaa...)
+		ip6, err6 = record.AAAA.getIPs()
+		ips = append(ips, ip6...)
 	}
 
 	if len(ips) > 0 {
 		return toNetIP(ips)
 	}
 
-	if lastErr != nil {
-		return nil, lastErr
+	if err4 != nil {
+		return nil, err4
+	}
+
+	if err6 != nil {
+		return nil, err6
 	}
 
 	return nil, dns_feature.ErrEmptyResponse
 }
 
 // QueryIP implements Server.
-func (s *ClassicNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, cs CacheStrategy) ([]net.IP, error) {
+func (s *ClassicNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, disableCache bool) ([]net.IP, error) {
 	fqdn := Fqdn(domain)
 
-	if cs == CacheStrategy_Cache_DISABLE {
+	if disableCache {
 		newError("DNS cache is disabled. Querying IP for ", domain, " at ", s.name).AtDebug().WriteToLog()
 	} else {
 		ips, err := s.findIPsForDomain(fqdn, option)
 		if err != errRecordNotFound {
-			if cs == CacheStrategy_Cache_NOERROR && err == nil {
-				newError(s.name, " cache HIT ", domain, " -> ", ips).Base(err).AtDebug().WriteToLog()
-				log.Record(&log.DNSLog{s.name, domain, ips, log.DNSCacheHit, 0, err})
-				return ips, err
-			}
+			newError(s.name, " cache HIT ", domain, " -> ", ips).Base(err).AtDebug().WriteToLog()
+			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSCacheHit, Elapsed: 0, Error: err})
+			return ips, err
 		}
 	}
 
@@ -293,7 +298,7 @@ func (s *ClassicNameServer) QueryIP(ctx context.Context, domain string, clientIP
 	for {
 		ips, err := s.findIPsForDomain(fqdn, option)
 		if err != errRecordNotFound {
-			log.Record(&log.DNSLog{s.name, domain, ips, log.DNSQueried, time.Since(start), err})
+			log.Record(&log.DNSLog{Server: s.name, Domain: domain, Result: ips, Status: log.DNSQueried, Elapsed: time.Since(start), Error: err})
 			return ips, err
 		}
 

app/dns/options.go

@@ -1,16 +0,0 @@
-package dns
-
-import "github.com/xtls/xray-core/features/dns"
-
-func isIPQuery(o *dns.IPOption) bool {
-	return o.IPv4Enable || o.IPv6Enable
-}
-
-func canQueryOnClient(o *dns.IPOption, c *Client) bool {
-	isIPClient := !(c.Name() == FakeDNSName)
-	return isIPClient && isIPQuery(o)
-}
-
-func isQuery(o *dns.IPOption) bool {
-	return !(o.IPv4Enable || o.IPv6Enable || o.FakeEnable)
-}

app/log/command/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
-// 	protoc        v3.14.0
+// 	protoc-gen-go v1.27.1
+// 	protoc        v3.18.0
 // source: app/log/command/config.proto
 
 package command
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

app/log/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
-// 	protoc        v3.14.0
+// 	protoc-gen-go v1.27.1
+// 	protoc        v3.18.0
 // source: app/log/config.proto
 
 package log
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	log "github.com/xtls/xray-core/common/log"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type LogType int32
 
 const (
@@ -134,7 +129,7 @@ func (x *Config) GetErrorLogLevel() log.Severity {
 	if x != nil {
 		return x.ErrorLogLevel
 	}
-	return log.Severity_Unknown
+	return log.Severity(0)
 }
 
 func (x *Config) GetErrorLogPath() string {

app/log/log_creator.go

@@ -11,9 +11,7 @@ type HandlerCreatorOptions struct {
 
 type HandlerCreator func(LogType, HandlerCreatorOptions) (log.Handler, error)
 
-var (
-	handlerCreatorMap = make(map[LogType]HandlerCreator)
-)
+var handlerCreatorMap = make(map[LogType]HandlerCreator)
 
 func RegisterHandlerCreator(logType LogType, f HandlerCreator) error {
 	if f == nil {

app/log/log_test.go

@@ -5,6 +5,7 @@ import (
 	"testing"
 
 	"github.com/golang/mock/gomock"
+
 	"github.com/xtls/xray-core/app/log"
 	"github.com/xtls/xray-core/common"
 	clog "github.com/xtls/xray-core/common/log"

app/policy/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
-// 	protoc        v3.14.0
+// 	protoc-gen-go v1.27.1
+// 	protoc        v3.18.0
 // source: app/policy/config.proto
 
 package policy
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Second struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

app/proxyman/command/command.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
-// 	protoc        v3.14.0
+// 	protoc-gen-go v1.27.1
+// 	protoc        v3.18.0
 // source: app/proxyman/command/command.proto
 
 package command
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protocol "github.com/xtls/xray-core/common/protocol"
 	serial "github.com/xtls/xray-core/common/serial"
 	core "github.com/xtls/xray-core/core"
@@ -24,10 +23,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type AddUserOperation struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

app/proxyman/config.go

@@ -1,12 +1,5 @@
 package proxyman
 
-import (
-	"github.com/xtls/xray-core/common/matcher/domain"
-	"github.com/xtls/xray-core/common/matcher/geoip"
-)
-
-//go:generate go run github.com/xtls/xray-core/common/errors/errorgen
-
 func (s *AllocationStrategy) GetConcurrencyValue() uint32 {
 	if s == nil || s.Concurrency == nil {
 		return 3
@@ -44,32 +37,3 @@ func (c *ReceiverConfig) GetEffectiveSniffingSettings() *SniffingConfig {
 
 	return nil
 }
-
-type SniffingMatcher struct {
-	ExDomain *domain.DomainMatcher
-	ExIP     *geoip.MultiGeoIPMatcher
-}
-
-func NewSniffingMatcher(sc *SniffingConfig) (*SniffingMatcher, error) {
-	m := new(SniffingMatcher)
-
-	if sc == nil {
-		return m, nil
-	}
-
-	if sc.DomainsExcluded != nil {
-		exDomain, err := domain.NewDomainMatcher(sc.DomainsExcluded)
-		if err != nil {
-			return nil, newError("failed to parse domain").Base(err)
-		}
-		m.ExDomain = exDomain
-	}
-	if sc.IpsExcluded != nil {
-		exIP, err := geoip.NewMultiGeoIPMatcher(sc.IpsExcluded, true)
-		if err != nil {
-			return nil, newError("failed to parse ip").Base(err)
-		}
-		m.ExIP = exIP
-	}
-	return m, nil
-}

app/proxyman/config.pb.go

@@ -1,15 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
-// 	protoc        v3.15.6
+// 	protoc-gen-go v1.27.1
+// 	protoc        v3.18.0
 // source: app/proxyman/config.proto
 
 package proxyman
 
 import (
-	proto "github.com/golang/protobuf/proto"
-	domain "github.com/xtls/xray-core/common/matcher/domain"
-	geoip "github.com/xtls/xray-core/common/matcher/geoip"
 	net "github.com/xtls/xray-core/common/net"
 	serial "github.com/xtls/xray-core/common/serial"
 	internet "github.com/xtls/xray-core/transport/internet"
@@ -26,10 +23,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type KnownProtocols int32
 
 const (
@@ -242,9 +235,8 @@ type SniffingConfig struct {
 	Enabled bool `protobuf:"varint,1,opt,name=enabled,proto3" json:"enabled,omitempty"`
 	// Override target destination if sniff'ed protocol is in the given list.
 	// Supported values are "http", "tls", "fakedns".
-	DestinationOverride []string         `protobuf:"bytes,2,rep,name=destination_override,json=destinationOverride,proto3" json:"destination_override,omitempty"`
-	DomainsExcluded     []*domain.Domain `protobuf:"bytes,3,rep,name=domains_excluded,json=domainsExcluded,proto3" json:"domains_excluded,omitempty"`
-	IpsExcluded         []*geoip.GeoIP   `protobuf:"bytes,5,rep,name=ips_excluded,json=ipsExcluded,proto3" json:"ips_excluded,omitempty"`
+	DestinationOverride []string `protobuf:"bytes,2,rep,name=destination_override,json=destinationOverride,proto3" json:"destination_override,omitempty"`
+	DomainsExcluded     []string `protobuf:"bytes,3,rep,name=domains_excluded,json=domainsExcluded,proto3" json:"domains_excluded,omitempty"`
 	// Whether should only try to sniff metadata without waiting for client input.
 	// Can be used to support SMTP like protocol where server send the first message.
 	MetadataOnly bool `protobuf:"varint,4,opt,name=metadata_only,json=metadataOnly,proto3" json:"metadata_only,omitempty"`
@@ -296,20 +288,13 @@ func (x *SniffingConfig) GetDestinationOverride() []string {
 	return nil
 }
 
-func (x *SniffingConfig) GetDomainsExcluded() []*domain.Domain {
+func (x *SniffingConfig) GetDomainsExcluded() []string {
 	if x != nil {
 		return x.DomainsExcluded
 	}
 	return nil
 }
 
-func (x *SniffingConfig) GetIpsExcluded() []*geoip.GeoIP {
-	if x != nil {
-		return x.IpsExcluded
-	}
-	return nil
-}
-
 func (x *SniffingConfig) GetMetadataOnly() bool {
 	if x != nil {
 		return x.MetadataOnly
@@ -748,144 +733,133 @@ var File_app_proxyman_config_proto protoreflect.FileDescriptor
 var file_app_proxyman_config_proto_rawDesc = []byte{
 	0x0a, 0x19, 0x61, 0x70, 0x70, 0x2f, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e, 0x2f, 0x63,
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+	0x22, 0x50, 0x0a, 0x12, 0x4d, 0x75, 0x6c, 0x74, 0x69, 0x70, 0x6c, 0x65, 0x78, 0x69, 0x6e, 0x67,
+	0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x18, 0x0a, 0x07, 0x65, 0x6e, 0x61, 0x62, 0x6c, 0x65,
+	0x64, 0x18, 0x01, 0x20, 0x01, 0x28, 0x08, 0x52, 0x07, 0x65, 0x6e, 0x61, 0x62, 0x6c, 0x65, 0x64,
+	0x12, 0x20, 0x0a, 0x0b, 0x63, 0x6f, 0x6e, 0x63, 0x75, 0x72, 0x72, 0x65, 0x6e, 0x63, 0x79, 0x18,
+	0x02, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x0b, 0x63, 0x6f, 0x6e, 0x63, 0x75, 0x72, 0x72, 0x65, 0x6e,
+	0x63, 0x79, 0x2a, 0x23, 0x0a, 0x0e, 0x4b, 0x6e, 0x6f, 0x77, 0x6e, 0x50, 0x72, 0x6f, 0x74, 0x6f,
+	0x63, 0x6f, 0x6c, 0x73, 0x12, 0x08, 0x0a, 0x04, 0x48, 0x54, 0x54, 0x50, 0x10, 0x00, 0x12, 0x07,
+	0x0a, 0x03, 0x54, 0x4c, 0x53, 0x10, 0x01, 0x42, 0x55, 0x0a, 0x15, 0x63, 0x6f, 0x6d, 0x2e, 0x78,
+	0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e,
+	0x50, 0x01, 0x5a, 0x26, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78,
+	0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x61, 0x70,
+	0x70, 0x2f, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e, 0xaa, 0x02, 0x11, 0x58, 0x72, 0x61,
+	0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e, 0x62, 0x06,
+	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -915,37 +889,33 @@ var file_app_proxyman_config_proto_goTypes = []interface{}{
 	(*MultiplexingConfig)(nil),                               // 9: xray.app.proxyman.MultiplexingConfig
 	(*AllocationStrategy_AllocationStrategyConcurrency)(nil), // 10: xray.app.proxyman.AllocationStrategy.AllocationStrategyConcurrency
 	(*AllocationStrategy_AllocationStrategyRefresh)(nil),     // 11: xray.app.proxyman.AllocationStrategy.AllocationStrategyRefresh
-	(*domain.Domain)(nil),                                    // 12: xray.common.matcher.domain.Domain
-	(*geoip.GeoIP)(nil),                                      // 13: xray.common.matcher.geoip.GeoIP
-	(*net.PortRange)(nil),                                    // 14: xray.common.net.PortRange
-	(*net.IPOrDomain)(nil),                                   // 15: xray.common.net.IPOrDomain
-	(*internet.StreamConfig)(nil),                            // 16: xray.transport.internet.StreamConfig
-	(*serial.TypedMessage)(nil),                              // 17: xray.common.serial.TypedMessage
-	(*internet.ProxyConfig)(nil),                             // 18: xray.transport.internet.ProxyConfig
+	(*net.PortRange)(nil),                                    // 12: xray.common.net.PortRange
+	(*net.IPOrDomain)(nil),                                   // 13: xray.common.net.IPOrDomain
+	(*internet.StreamConfig)(nil),                            // 14: xray.transport.internet.StreamConfig
+	(*serial.TypedMessage)(nil),                              // 15: xray.common.serial.TypedMessage
+	(*internet.ProxyConfig)(nil),                             // 16: xray.transport.internet.ProxyConfig
 }
 var file_app_proxyman_config_proto_depIdxs = []int32{
 	1,  // 0: xray.app.proxyman.AllocationStrategy.type:type_name -> xray.app.proxyman.AllocationStrategy.Type
 	10, // 1: xray.app.proxyman.AllocationStrategy.concurrency:type_name -> xray.app.proxyman.AllocationStrategy.AllocationStrategyConcurrency
 	11, // 2: xray.app.proxyman.AllocationStrategy.refresh:type_name -> xray.app.proxyman.AllocationStrategy.AllocationStrategyRefresh
-	12, // 3: xray.app.proxyman.SniffingConfig.domains_excluded:type_name -> xray.common.matcher.domain.Domain
-	13, // 4: xray.app.proxyman.SniffingConfig.ips_excluded:type_name -> xray.common.matcher.geoip.GeoIP
-	14, // 5: xray.app.proxyman.ReceiverConfig.port_range:type_name -> xray.common.net.PortRange
-	15, // 6: xray.app.proxyman.ReceiverConfig.listen:type_name -> xray.common.net.IPOrDomain
-	3,  // 7: xray.app.proxyman.ReceiverConfig.allocation_strategy:type_name -> xray.app.proxyman.AllocationStrategy
-	16, // 8: xray.app.proxyman.ReceiverConfig.stream_settings:type_name -> xray.transport.internet.StreamConfig
-	0,  // 9: xray.app.proxyman.ReceiverConfig.domain_override:type_name -> xray.app.proxyman.KnownProtocols
-	4,  // 10: xray.app.proxyman.ReceiverConfig.sniffing_settings:type_name -> xray.app.proxyman.SniffingConfig
-	17, // 11: xray.app.proxyman.InboundHandlerConfig.receiver_settings:type_name -> xray.common.serial.TypedMessage
-	17, // 12: xray.app.proxyman.InboundHandlerConfig.proxy_settings:type_name -> xray.common.serial.TypedMessage
-	15, // 13: xray.app.proxyman.SenderConfig.via:type_name -> xray.common.net.IPOrDomain
-	16, // 14: xray.app.proxyman.SenderConfig.stream_settings:type_name -> xray.transport.internet.StreamConfig
-	18, // 15: xray.app.proxyman.SenderConfig.proxy_settings:type_name -> xray.transport.internet.ProxyConfig
-	9,  // 16: xray.app.proxyman.SenderConfig.multiplex_settings:type_name -> xray.app.proxyman.MultiplexingConfig
-	17, // [17:17] is the sub-list for method output_type
-	17, // [17:17] is the sub-list for method input_type
-	17, // [17:17] is the sub-list for extension type_name
-	17, // [17:17] is the sub-list for extension extendee
-	0,  // [0:17] is the sub-list for field type_name
+	12, // 3: xray.app.proxyman.ReceiverConfig.port_range:type_name -> xray.common.net.PortRange
+	13, // 4: xray.app.proxyman.ReceiverConfig.listen:type_name -> xray.common.net.IPOrDomain
+	3,  // 5: xray.app.proxyman.ReceiverConfig.allocation_strategy:type_name -> xray.app.proxyman.AllocationStrategy
+	14, // 6: xray.app.proxyman.ReceiverConfig.stream_settings:type_name -> xray.transport.internet.StreamConfig
+	0,  // 7: xray.app.proxyman.ReceiverConfig.domain_override:type_name -> xray.app.proxyman.KnownProtocols
+	4,  // 8: xray.app.proxyman.ReceiverConfig.sniffing_settings:type_name -> xray.app.proxyman.SniffingConfig
+	15, // 9: xray.app.proxyman.InboundHandlerConfig.receiver_settings:type_name -> xray.common.serial.TypedMessage
+	15, // 10: xray.app.proxyman.InboundHandlerConfig.proxy_settings:type_name -> xray.common.serial.TypedMessage
+	13, // 11: xray.app.proxyman.SenderConfig.via:type_name -> xray.common.net.IPOrDomain
+	14, // 12: xray.app.proxyman.SenderConfig.stream_settings:type_name -> xray.transport.internet.StreamConfig
+	16, // 13: xray.app.proxyman.SenderConfig.proxy_settings:type_name -> xray.transport.internet.ProxyConfig
+	9,  // 14: xray.app.proxyman.SenderConfig.multiplex_settings:type_name -> xray.app.proxyman.MultiplexingConfig
+	15, // [15:15] is the sub-list for method output_type
+	15, // [15:15] is the sub-list for method input_type
+	15, // [15:15] is the sub-list for extension type_name
+	15, // [15:15] is the sub-list for extension extendee
+	0,  // [0:15] is the sub-list for field type_name
 }
 
 func init() { file_app_proxyman_config_proto_init() }

app/proxyman/config.proto

@@ -6,8 +6,6 @@ option go_package = "github.com/xtls/xray-core/app/proxyman";
 option java_package = "com.xray.app.proxyman";
 option java_multiple_files = true;
 
-import "common/matcher/domain/domain.proto";
-import "common/matcher/geoip/geoip.proto";
 import "common/net/address.proto";
 import "common/net/port.proto";
 import "transport/internet/config.proto";
@@ -58,9 +56,7 @@ message SniffingConfig {
   // Override target destination if sniff'ed protocol is in the given list.
   // Supported values are "http", "tls", "fakedns".
   repeated string destination_override = 2;
-
-  repeated xray.common.matcher.domain.Domain domains_excluded = 3;
-  repeated xray.common.matcher.geoip.GeoIP ips_excluded = 5;
+  repeated string domains_excluded = 3;
   
   // Whether should only try to sniff metadata without waiting for client input.
   // Can be used to support SMTP like protocol where server send the first message.

app/proxyman/errors.generated.go

@@ -1,9 +0,0 @@
-package proxyman
-
-import "github.com/xtls/xray-core/common/errors"
-
-type errPathObjHolder struct{}
-
-func newError(values ...interface{}) *errors.Error {
-	return errors.New(values...).WithPathObj(errPathObjHolder{})
-}

app/proxyman/inbound/always.go

@@ -91,20 +91,13 @@ func NewAlwaysOnInboundHandler(ctx context.Context, tag string, receiverConfig *
 		if net.HasNetwork(nl, net.Network_UNIX) {
 			newError("creating unix domain socket worker on ", address).AtDebug().WriteToLog()
 
-			sc := receiverConfig.GetEffectiveSniffingSettings()
-			sm, err := proxyman.NewSniffingMatcher(sc)
-			if err != nil {
-				return nil, err
-			}
-
 			worker := &dsWorker{
 				address:         address,
 				proxy:           p,
 				stream:          mss,
 				tag:             tag,
 				dispatcher:      h.mux,
-				sniffingConfig:  sc,
-				sniffingMatcher: sm,
+				sniffingConfig:  receiverConfig.GetEffectiveSniffingSettings(),
 				uplinkCounter:   uplinkCounter,
 				downlinkCounter: downlinkCounter,
 				ctx:             ctx,
@@ -117,12 +110,6 @@ func NewAlwaysOnInboundHandler(ctx context.Context, tag string, receiverConfig *
 			if net.HasNetwork(nl, net.Network_TCP) {
 				newError("creating stream worker on ", address, ":", port).AtDebug().WriteToLog()
 
-				sc := receiverConfig.GetEffectiveSniffingSettings()
-				sm, err := proxyman.NewSniffingMatcher(sc)
-				if err != nil {
-					return nil, err
-				}
-
 				worker := &tcpWorker{
 					address:         address,
 					port:            net.Port(port),
@@ -131,8 +118,7 @@ func NewAlwaysOnInboundHandler(ctx context.Context, tag string, receiverConfig *
 					recvOrigDest:    receiverConfig.ReceiveOriginalDestination,
 					tag:             tag,
 					dispatcher:      h.mux,
-					sniffingConfig:  sc,
-					sniffingMatcher: sm,
+					sniffingConfig:  receiverConfig.GetEffectiveSniffingSettings(),
 					uplinkCounter:   uplinkCounter,
 					downlinkCounter: downlinkCounter,
 					ctx:             ctx,

app/proxyman/inbound/worker.go

@@ -6,6 +6,8 @@ import (
 	"sync/atomic"
 	"time"
 
+	"github.com/xtls/xray-core/transport/internet/stat"
+
 	"github.com/xtls/xray-core/app/proxyman"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
@@ -39,7 +41,6 @@ type tcpWorker struct {
 	tag             string
 	dispatcher      routing.Dispatcher
 	sniffingConfig  *proxyman.SniffingConfig
-	sniffingMatcher *proxyman.SniffingMatcher
 	uplinkCounter   stats.Counter
 	downlinkCounter stats.Counter
 
@@ -55,7 +56,7 @@ func getTProxyType(s *internet.MemoryStreamConfig) internet.SocketConfig_TProxyM
 	return s.SocketSettings.Tproxy
 }
 
-func (w *tcpWorker) callback(conn internet.Connection) {
+func (w *tcpWorker) callback(conn stat.Connection) {
 	ctx, cancel := context.WithCancel(w.ctx)
 	sid := session.NewID()
 	ctx = session.ContextWithID(ctx, sid)
@@ -81,7 +82,7 @@ func (w *tcpWorker) callback(conn internet.Connection) {
 	}
 
 	if w.uplinkCounter != nil || w.downlinkCounter != nil {
-		conn = &internet.StatCouterConnection{
+		conn = &stat.CounterConnection{
 			Connection:   conn,
 			ReadCounter:  w.uplinkCounter,
 			WriteCounter: w.downlinkCounter,
@@ -98,8 +99,7 @@ func (w *tcpWorker) callback(conn internet.Connection) {
 	if w.sniffingConfig != nil {
 		content.SniffingRequest.Enabled = w.sniffingConfig.Enabled
 		content.SniffingRequest.OverrideDestinationForProtocol = w.sniffingConfig.DestinationOverride
-		content.SniffingRequest.ExcludedDomainMatcher = w.sniffingMatcher.ExDomain
-		content.SniffingRequest.ExcludedIPMatcher = w.sniffingMatcher.ExIP
+		content.SniffingRequest.ExcludeForDomain = w.sniffingConfig.DomainsExcluded
 		content.SniffingRequest.MetadataOnly = w.sniffingConfig.MetadataOnly
 	}
 	ctx = session.ContextWithContent(ctx, content)
@@ -119,7 +119,7 @@ func (w *tcpWorker) Proxy() proxy.Inbound {
 
 func (w *tcpWorker) Start() error {
 	ctx := context.Background()
-	hub, err := internet.ListenTCP(ctx, w.address, w.port, w.stream, func(conn internet.Connection) {
+	hub, err := internet.ListenTCP(ctx, w.address, w.port, w.stream, func(conn stat.Connection) {
 		go w.callback(conn)
 	})
 	if err != nil {
@@ -430,7 +430,6 @@ type dsWorker struct {
 	tag             string
 	dispatcher      routing.Dispatcher
 	sniffingConfig  *proxyman.SniffingConfig
-	sniffingMatcher *proxyman.SniffingMatcher
 	uplinkCounter   stats.Counter
 	downlinkCounter stats.Counter
 
@@ -439,13 +438,13 @@ type dsWorker struct {
 	ctx context.Context
 }
 
-func (w *dsWorker) callback(conn internet.Connection) {
+func (w *dsWorker) callback(conn stat.Connection) {
 	ctx, cancel := context.WithCancel(w.ctx)
 	sid := session.NewID()
 	ctx = session.ContextWithID(ctx, sid)
 
 	if w.uplinkCounter != nil || w.downlinkCounter != nil {
-		conn = &internet.StatCouterConnection{
+		conn = &stat.CounterConnection{
 			Connection:   conn,
 			ReadCounter:  w.uplinkCounter,
 			WriteCounter: w.downlinkCounter,
@@ -462,8 +461,7 @@ func (w *dsWorker) callback(conn internet.Connection) {
 	if w.sniffingConfig != nil {
 		content.SniffingRequest.Enabled = w.sniffingConfig.Enabled
 		content.SniffingRequest.OverrideDestinationForProtocol = w.sniffingConfig.DestinationOverride
-		content.SniffingRequest.ExcludedDomainMatcher = w.sniffingMatcher.ExDomain
-		content.SniffingRequest.ExcludedIPMatcher = w.sniffingMatcher.ExIP
+		content.SniffingRequest.ExcludeForDomain = w.sniffingConfig.DomainsExcluded
 		content.SniffingRequest.MetadataOnly = w.sniffingConfig.MetadataOnly
 	}
 	ctx = session.ContextWithContent(ctx, content)
@@ -484,9 +482,10 @@ func (w *dsWorker) Proxy() proxy.Inbound {
 func (w *dsWorker) Port() net.Port {
 	return net.Port(0)
 }
+
 func (w *dsWorker) Start() error {
 	ctx := context.Background()
-	hub, err := internet.ListenUnix(ctx, w.address, w.stream, func(conn internet.Connection) {
+	hub, err := internet.ListenUnix(ctx, w.address, w.stream, func(conn stat.Connection) {
 		go w.callback(conn)
 	})
 	if err != nil {

app/proxyman/outbound/handler.go

@@ -3,6 +3,8 @@ package outbound
 import (
 	"context"
 
+	"github.com/xtls/xray-core/transport/internet/stat"
+
 	"github.com/xtls/xray-core/app/proxyman"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/mux"
@@ -158,7 +160,7 @@ func (h *Handler) Address() net.Address {
 }
 
 // Dial implements internet.Dialer.
-func (h *Handler) Dial(ctx context.Context, dest net.Destination) (internet.Connection, error) {
+func (h *Handler) Dial(ctx context.Context, dest net.Destination) (stat.Connection, error) {
 	if h.senderSettings != nil {
 		if h.senderSettings.ProxySettings.HasTag() {
 			tag := h.senderSettings.ProxySettings.Tag
@@ -201,9 +203,9 @@ func (h *Handler) Dial(ctx context.Context, dest net.Destination) (internet.Conn
 	return h.getStatCouterConnection(conn), err
 }
 
-func (h *Handler) getStatCouterConnection(conn internet.Connection) internet.Connection {
+func (h *Handler) getStatCouterConnection(conn stat.Connection) stat.Connection {
 	if h.uplinkCounter != nil || h.downlinkCounter != nil {
-		return &internet.StatCouterConnection{
+		return &stat.CounterConnection{
 			Connection:   conn,
 			ReadCounter:  h.downlinkCounter,
 			WriteCounter: h.uplinkCounter,

app/proxyman/outbound/handler_test.go

@@ -4,6 +4,8 @@ import (
 	"context"
 	"testing"
 
+	"github.com/xtls/xray-core/transport/internet/stat"
+
 	"github.com/xtls/xray-core/app/policy"
 	. "github.com/xtls/xray-core/app/proxyman/outbound"
 	"github.com/xtls/xray-core/app/stats"
@@ -12,7 +14,6 @@ import (
 	core "github.com/xtls/xray-core/core"
 	"github.com/xtls/xray-core/features/outbound"
 	"github.com/xtls/xray-core/proxy/freedom"
-	"github.com/xtls/xray-core/transport/internet"
 )
 
 func TestInterfaces(t *testing.T) {
@@ -44,9 +45,9 @@ func TestOutboundWithoutStatCounter(t *testing.T) {
 		ProxySettings: serial.ToTypedMessage(&freedom.Config{}),
 	})
 	conn, _ := h.(*Handler).Dial(ctx, net.TCPDestination(net.DomainAddress("localhost"), 13146))
-	_, ok := conn.(*internet.StatCouterConnection)
+	_, ok := conn.(*stat.CounterConnection)
 	if ok {
-		t.Errorf("Expected conn to not be StatCouterConnection")
+		t.Errorf("Expected conn to not be CounterConnection")
 	}
 }
 
@@ -73,8 +74,8 @@ func TestOutboundWithStatCounter(t *testing.T) {
 		ProxySettings: serial.ToTypedMessage(&freedom.Config{}),
 	})
 	conn, _ := h.(*Handler).Dial(ctx, net.TCPDestination(net.DomainAddress("localhost"), 13146))
-	_, ok := conn.(*internet.StatCouterConnection)
+	_, ok := conn.(*stat.CounterConnection)
 	if !ok {
-		t.Errorf("Expected conn to be StatCouterConnection")
+		t.Errorf("Expected conn to be CounterConnection")
 	}
 }

app/reverse/bridge.go

@@ -5,6 +5,7 @@ import (
 	"time"
 
 	"github.com/golang/protobuf/proto"
+
 	"github.com/xtls/xray-core/common/mux"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/session"

app/reverse/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
-// 	protoc        v3.14.0
+// 	protoc-gen-go v1.27.1
+// 	protoc        v3.18.0
 // source: app/reverse/config.proto
 
 package reverse
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Control_State int32
 
 const (

app/reverse/portal.go

@@ -6,6 +6,7 @@ import (
 	"time"
 
 	"github.com/golang/protobuf/proto"
+
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/common/mux"

app/router/balancing.go

@@ -9,8 +9,7 @@ type BalancingStrategy interface {
 	PickOutbound([]string) string
 }
 
-type RandomStrategy struct {
-}
+type RandomStrategy struct{}
 
 func (s *RandomStrategy) PickOutbound(tags []string) string {
 	n := len(tags)

app/router/command/command.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
-// 	protoc        v3.14.0
+// 	protoc-gen-go v1.27.1
+// 	protoc        v3.18.0
 // source: app/router/command/command.proto
 
 package command
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	net "github.com/xtls/xray-core/common/net"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 // RoutingContext is the context with information relative to routing process.
 // It conforms to the structure of xray.features.routing.Context and
 // xray.features.routing.Route.
@@ -91,7 +86,7 @@ func (x *RoutingContext) GetNetwork() net.Network {
 	if x != nil {
 		return x.Network
 	}
-	return net.Network_Unknown
+	return net.Network(0)
 }
 
 func (x *RoutingContext) GetSourceIPs() [][]byte {

app/router/command/command_test.go

@@ -8,17 +8,16 @@ import (
 	"github.com/golang/mock/gomock"
 	"github.com/google/go-cmp/cmp"
 	"github.com/google/go-cmp/cmp/cmpopts"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/test/bufconn"
+
 	"github.com/xtls/xray-core/app/router"
 	. "github.com/xtls/xray-core/app/router/command"
 	"github.com/xtls/xray-core/app/stats"
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/matcher/domain"
-	"github.com/xtls/xray-core/common/matcher/geoip"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/features/routing"
 	"github.com/xtls/xray-core/testing/mocks"
-	"google.golang.org/grpc"
-	"google.golang.org/grpc/test/bufconn"
 )
 
 func TestServiceSubscribeRoutingStats(t *testing.T) {
@@ -46,7 +45,6 @@ func TestServiceSubscribeRoutingStats(t *testing.T) {
 		{SourceIPs: [][]byte{{127, 0, 0, 1}}, Attributes: map[string]string{"attr": "value"}, OutboundTag: "out"},
 	}
 	errCh := make(chan error)
-	nextPub := make(chan struct{})
 
 	// Server goroutine
 	go func() {
@@ -78,13 +76,6 @@ func TestServiceSubscribeRoutingStats(t *testing.T) {
 		if err := publishTestCases(); err != nil {
 			errCh <- err
 		}
-
-		// Wait for next round of publishing
-		<-nextPub
-
-		if err := publishTestCases(); err != nil {
-			errCh <- err
-		}
 	}()
 
 	// Client goroutine
@@ -146,6 +137,92 @@ func TestServiceSubscribeRoutingStats(t *testing.T) {
 			return nil
 		}
 
+		if err := testRetrievingAllFields(); err != nil {
+			errCh <- err
+		}
+		errCh <- nil // Client passed all tests successfully
+	}()
+
+	// Wait for goroutines to complete
+	select {
+	case <-time.After(2 * time.Second):
+		t.Fatal("Test timeout after 2s")
+	case err := <-errCh:
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+}
+
+func TestServiceSubscribeSubsetOfFields(t *testing.T) {
+	c := stats.NewChannel(&stats.ChannelConfig{
+		SubscriberLimit: 1,
+		BufferSize:      0,
+		Blocking:        true,
+	})
+	common.Must(c.Start())
+	defer c.Close()
+
+	lis := bufconn.Listen(1024 * 1024)
+	bufDialer := func(context.Context, string) (net.Conn, error) {
+		return lis.Dial()
+	}
+
+	testCases := []*RoutingContext{
+		{InboundTag: "in", OutboundTag: "out"},
+		{TargetIPs: [][]byte{{1, 2, 3, 4}}, TargetPort: 8080, OutboundTag: "out"},
+		{TargetDomain: "example.com", TargetPort: 443, OutboundTag: "out"},
+		{SourcePort: 9999, TargetPort: 9999, OutboundTag: "out"},
+		{Network: net.Network_UDP, OutboundGroupTags: []string{"outergroup", "innergroup"}, OutboundTag: "out"},
+		{Protocol: "bittorrent", OutboundTag: "blocked"},
+		{User: "example@example.com", OutboundTag: "out"},
+		{SourceIPs: [][]byte{{127, 0, 0, 1}}, Attributes: map[string]string{"attr": "value"}, OutboundTag: "out"},
+	}
+	errCh := make(chan error)
+
+	// Server goroutine
+	go func() {
+		server := grpc.NewServer()
+		RegisterRoutingServiceServer(server, NewRoutingServer(nil, c))
+		errCh <- server.Serve(lis)
+	}()
+
+	// Publisher goroutine
+	go func() {
+		publishTestCases := func() error {
+			ctx, cancel := context.WithTimeout(context.Background(), time.Second)
+			defer cancel()
+			for { // Wait until there's one subscriber in routing stats channel
+				if len(c.Subscribers()) > 0 {
+					break
+				}
+				if ctx.Err() != nil {
+					return ctx.Err()
+				}
+			}
+			for _, tc := range testCases {
+				c.Publish(context.Background(), AsRoutingRoute(tc))
+				time.Sleep(time.Millisecond)
+			}
+			return nil
+		}
+
+		if err := publishTestCases(); err != nil {
+			errCh <- err
+		}
+	}()
+
+	// Client goroutine
+	go func() {
+		defer lis.Close()
+		conn, err := grpc.DialContext(context.Background(), "bufnet", grpc.WithContextDialer(bufDialer), grpc.WithInsecure())
+		if err != nil {
+			errCh <- err
+			return
+		}
+		defer conn.Close()
+		client := NewRoutingServiceClient(conn)
+
 		// Test retrieving only a subset of fields
 		testRetrievingSubsetOfFields := func() error {
 			streamCtx, streamClose := context.WithCancel(context.Background())
@@ -157,9 +234,6 @@ func TestServiceSubscribeRoutingStats(t *testing.T) {
 				return err
 			}
 
-			// Send nextPub signal to start next round of publishing
-			close(nextPub)
-
 			for _, tc := range testCases {
 				msg, err := stream.Recv()
 				if err != nil {
@@ -181,10 +255,6 @@ func TestServiceSubscribeRoutingStats(t *testing.T) {
 
 			return nil
 		}
-
-		if err := testRetrievingAllFields(); err != nil {
-			errCh <- err
-		}
 		if err := testRetrievingSubsetOfFields(); err != nil {
 			errCh <- err
 		}
@@ -233,11 +303,11 @@ func TestSerivceTestRoute(t *testing.T) {
 				TargetTag:      &router.RoutingRule_Tag{Tag: "out"},
 			},
 			{
-				Domain:    []*domain.Domain{{Type: domain.MatchingType_Subdomain, Value: "com"}},
+				Domain:    []*router.Domain{{Type: router.Domain_Domain, Value: "com"}},
 				TargetTag: &router.RoutingRule_Tag{Tag: "out"},
 			},
 			{
-				SourceGeoip: []*geoip.GeoIP{{CountryCode: "private", Cidr: []*geoip.CIDR{{Ip: []byte{127, 0, 0, 0}, Prefix: 8}}}},
+				SourceGeoip: []*router.GeoIP{{CountryCode: "private", Cidr: []*router.CIDR{{Ip: []byte{127, 0, 0, 0}, Prefix: 8}}}},
 				TargetTag:   &router.RoutingRule_Tag{Tag: "out"},
 			},
 			{

app/router/command/config.go

@@ -30,6 +30,7 @@ func (c routingContext) GetTargetPort() net.Port {
 
 // GetSkipDNSResolve is a mock implementation here to match the interface,
 // SkipDNSResolve is set from dns module, no use if coming from a protobuf object?
+// TODO: please confirm @Vigilans
 func (c routingContext) GetSkipDNSResolve() bool {
 	return false
 }

app/router/condition.go

@@ -7,6 +7,7 @@ import (
 	"go.starlark.net/syntax"
 
 	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/common/strmatcher"
 	"github.com/xtls/xray-core/features/routing"
 )
 
@@ -40,6 +41,118 @@ func (v *ConditionChan) Len() int {
 	return len(*v)
 }
 
+var matcherTypeMap = map[Domain_Type]strmatcher.Type{
+	Domain_Plain:  strmatcher.Substr,
+	Domain_Regex:  strmatcher.Regex,
+	Domain_Domain: strmatcher.Domain,
+	Domain_Full:   strmatcher.Full,
+}
+
+func domainToMatcher(domain *Domain) (strmatcher.Matcher, error) {
+	matcherType, f := matcherTypeMap[domain.Type]
+	if !f {
+		return nil, newError("unsupported domain type", domain.Type)
+	}
+
+	matcher, err := matcherType.New(domain.Value)
+	if err != nil {
+		return nil, newError("failed to create domain matcher").Base(err)
+	}
+
+	return matcher, nil
+}
+
+type DomainMatcher struct {
+	matchers strmatcher.IndexMatcher
+}
+
+func NewMphMatcherGroup(domains []*Domain) (*DomainMatcher, error) {
+	g := strmatcher.NewMphMatcherGroup()
+	for _, d := range domains {
+		matcherType, f := matcherTypeMap[d.Type]
+		if !f {
+			return nil, newError("unsupported domain type", d.Type)
+		}
+		_, err := g.AddPattern(d.Value, matcherType)
+		if err != nil {
+			return nil, err
+		}
+	}
+	g.Build()
+	return &DomainMatcher{
+		matchers: g,
+	}, nil
+}
+
+func NewDomainMatcher(domains []*Domain) (*DomainMatcher, error) {
+	g := new(strmatcher.MatcherGroup)
+	for _, d := range domains {
+		m, err := domainToMatcher(d)
+		if err != nil {
+			return nil, err
+		}
+		g.Add(m)
+	}
+
+	return &DomainMatcher{
+		matchers: g,
+	}, nil
+}
+
+func (m *DomainMatcher) ApplyDomain(domain string) bool {
+	return len(m.matchers.Match(strings.ToLower(domain))) > 0
+}
+
+// Apply implements Condition.
+func (m *DomainMatcher) Apply(ctx routing.Context) bool {
+	domain := ctx.GetTargetDomain()
+	if len(domain) == 0 {
+		return false
+	}
+	return m.ApplyDomain(domain)
+}
+
+type MultiGeoIPMatcher struct {
+	matchers []*GeoIPMatcher
+	onSource bool
+}
+
+func NewMultiGeoIPMatcher(geoips []*GeoIP, onSource bool) (*MultiGeoIPMatcher, error) {
+	var matchers []*GeoIPMatcher
+	for _, geoip := range geoips {
+		matcher, err := globalGeoIPContainer.Add(geoip)
+		if err != nil {
+			return nil, err
+		}
+		matchers = append(matchers, matcher)
+	}
+
+	matcher := &MultiGeoIPMatcher{
+		matchers: matchers,
+		onSource: onSource,
+	}
+
+	return matcher, nil
+}
+
+// Apply implements Condition.
+func (m *MultiGeoIPMatcher) Apply(ctx routing.Context) bool {
+	var ips []net.IP
+	if m.onSource {
+		ips = ctx.GetSourceIPs()
+	} else {
+		ips = ctx.GetTargetIPs()
+	}
+	for _, ip := range ips {
+		for _, matcher := range m.matchers {
+			if matcher.Match(ip) {
+				return true
+			}
+		}
+	}
+	return false
+}
+
 type PortMatcher struct {
 	port     net.MemoryPortList
 	onSource bool

app/router/condition_geoip.go

@@ -1,4 +1,4 @@
-package geoip
+package router
 
 import (
 	"encoding/binary"
@@ -7,24 +7,17 @@ import (
 	"github.com/xtls/xray-core/common/net"
 )
 
-//go:generate go run github.com/xtls/xray-core/common/errors/errorgen
-
 type ipv6 struct {
 	a uint64
 	b uint64
 }
 
 type GeoIPMatcher struct {
-	countryCode  string
-	reverseMatch bool
-	ip4          []uint32
-	prefix4      []uint8
-	ip6          []ipv6
-	prefix6      []uint8
-}
-
-func (m *GeoIPMatcher) SetReverseMatch(isReverseMatch bool) {
-	m.reverseMatch = isReverseMatch
+	countryCode string
+	ip4         []uint32
+	prefix4     []uint8
+	ip6         []ipv6
+	prefix6     []uint8
 }
 
 func normalize4(ip uint32, prefix uint8) uint32 {
@@ -154,17 +147,8 @@ func (m *GeoIPMatcher) match6(ip ipv6) bool {
 func (m *GeoIPMatcher) Match(ip net.IP) bool {
 	switch len(ip) {
 	case 4:
-		if m.reverseMatch {
-			return !m.match4(binary.BigEndian.Uint32(ip))
-		}
 		return m.match4(binary.BigEndian.Uint32(ip))
 	case 16:
-		if m.reverseMatch {
-			return !m.match6(ipv6{
-				a: binary.BigEndian.Uint64(ip[0:8]),
-				b: binary.BigEndian.Uint64(ip[8:16]),
-			})
-		}
 		return m.match6(ipv6{
 			a: binary.BigEndian.Uint64(ip[0:8]),
 			b: binary.BigEndian.Uint64(ip[8:16]),
@@ -184,15 +168,14 @@ type GeoIPMatcherContainer struct {
 func (c *GeoIPMatcherContainer) Add(geoip *GeoIP) (*GeoIPMatcher, error) {
 	if len(geoip.CountryCode) > 0 {
 		for _, m := range c.matchers {
-			if m.countryCode == geoip.CountryCode && m.reverseMatch == geoip.ReverseMatch {
+			if m.countryCode == geoip.CountryCode {
 				return m, nil
 			}
 		}
 	}
 
 	m := &GeoIPMatcher{
-		countryCode:  geoip.CountryCode,
-		reverseMatch: geoip.ReverseMatch,
+		countryCode: geoip.CountryCode,
 	}
 	if err := m.Init(geoip.Cidr); err != nil {
 		return nil, err
@@ -203,6 +186,4 @@ func (c *GeoIPMatcherContainer) Add(geoip *GeoIP) (*GeoIPMatcher, error) {
 	return m, nil
 }
 
-var (
-	GlobalGeoIPContainer GeoIPMatcherContainer
-)
+var globalGeoIPContainer GeoIPMatcherContainer

app/router/condition_geoip_test.go

@@ -1,16 +1,17 @@
-package geoip_test
+package router_test
 
 import (
 	"os"
 	"path/filepath"
 	"testing"
 
+	"github.com/golang/protobuf/proto"
+
+	"github.com/xtls/xray-core/app/router"
 	"github.com/xtls/xray-core/common"
-	. "github.com/xtls/xray-core/common/matcher/geoip"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/platform"
 	"github.com/xtls/xray-core/common/platform/filesystem"
-	"google.golang.org/protobuf/proto"
 )
 
 func init() {
@@ -18,47 +19,27 @@ func init() {
 	common.Must(err)
 
 	if _, err := os.Stat(platform.GetAssetLocation("geoip.dat")); err != nil && os.IsNotExist(err) {
-		common.Must(filesystem.CopyFile(platform.GetAssetLocation("geoip.dat"), filepath.Join(wd, "..", "..", "..", "resources", "geoip.dat")))
-	}
-	if _, err := os.Stat(platform.GetAssetLocation("geoiptestrouter.dat")); err != nil && os.IsNotExist(err) {
-		common.Must(filesystem.CopyFile(platform.GetAssetLocation("geoiptestrouter.dat"), filepath.Join(wd, "..", "..", "..", "resources", "geoip.dat")))
+		common.Must(filesystem.CopyFile(platform.GetAssetLocation("geoip.dat"), filepath.Join(wd, "..", "..", "resources", "geoip.dat")))
 	}
 	if _, err := os.Stat(platform.GetAssetLocation("geosite.dat")); err != nil && os.IsNotExist(err) {
-		common.Must(filesystem.CopyFile(platform.GetAssetLocation("geosite.dat"), filepath.Join(wd, "..", "..", "..", "resources", "geosite.dat")))
-	}
-}
-
-func TestParseIPList(t *testing.T) {
-	ips := []string{
-		"geoip:us",
-		"geoip:cn",
-		"geoip:!cn",
-		"ext:geoiptestrouter.dat:!cn",
-		"ext:geoiptestrouter.dat:ca",
-		"ext-ip:geoiptestrouter.dat:!cn",
-		"ext-ip:geoiptestrouter.dat:!ca",
-	}
-
-	_, err := ParseIPList(ips)
-	if err != nil {
-		t.Fatalf("Failed to parse geoip list, got %s", err)
+		common.Must(filesystem.CopyFile(platform.GetAssetLocation("geosite.dat"), filepath.Join(wd, "..", "..", "resources", "geosite.dat")))
 	}
 }
 
 func TestGeoIPMatcherContainer(t *testing.T) {
-	container := &GeoIPMatcherContainer{}
+	container := &router.GeoIPMatcherContainer{}
 
-	m1, err := container.Add(&GeoIP{
+	m1, err := container.Add(&router.GeoIP{
 		CountryCode: "CN",
 	})
 	common.Must(err)
 
-	m2, err := container.Add(&GeoIP{
+	m2, err := container.Add(&router.GeoIP{
 		CountryCode: "US",
 	})
 	common.Must(err)
 
-	m3, err := container.Add(&GeoIP{
+	m3, err := container.Add(&router.GeoIP{
 		CountryCode: "CN",
 	})
 	common.Must(err)
@@ -73,7 +54,7 @@ func TestGeoIPMatcherContainer(t *testing.T) {
 }
 
 func TestGeoIPMatcher(t *testing.T) {
-	cidrList := CIDRList{
+	cidrList := router.CIDRList{
 		{Ip: []byte{0, 0, 0, 0}, Prefix: 8},
 		{Ip: []byte{10, 0, 0, 0}, Prefix: 8},
 		{Ip: []byte{100, 64, 0, 0}, Prefix: 10},
@@ -90,7 +71,7 @@ func TestGeoIPMatcher(t *testing.T) {
 		{Ip: []byte{91, 108, 4, 0}, Prefix: 16},
 	}
 
-	matcher := &GeoIPMatcher{}
+	matcher := &router.GeoIPMatcher{}
 	common.Must(matcher.Init(cidrList))
 
 	testCases := []struct {
@@ -108,7 +89,8 @@ func TestGeoIPMatcher(t *testing.T) {
 		{
 			Input:  "192.0.1.0",
 			Output: false,
-		}, {
+		},
+		{
 			Input:  "0.1.0.0",
 			Output: true,
 		},
@@ -143,47 +125,11 @@ func TestGeoIPMatcher(t *testing.T) {
 	}
 }
 
-func TestGeoIPReverseMatcher(t *testing.T) {
-	cidrList := CIDRList{
-		{Ip: []byte{8, 8, 8, 8}, Prefix: 32},
-		{Ip: []byte{91, 108, 4, 0}, Prefix: 16},
-	}
-	matcher := &GeoIPMatcher{}
-	matcher.SetReverseMatch(true) // Reverse match
-	common.Must(matcher.Init(cidrList))
-
-	testCases := []struct {
-		Input  string
-		Output bool
-	}{
-		{
-			Input:  "8.8.8.8",
-			Output: false,
-		},
-		{
-			Input:  "2001:cdba::3257:9652",
-			Output: true,
-		},
-		{
-			Input:  "91.108.255.254",
-			Output: false,
-		},
-	}
-
-	for _, testCase := range testCases {
-		ip := net.ParseAddress(testCase.Input).IP()
-		actual := matcher.Match(ip)
-		if actual != testCase.Output {
-			t.Error("expect input", testCase.Input, "to be", testCase.Output, ", but actually", actual)
-		}
-	}
-}
-
 func TestGeoIPMatcher4CN(t *testing.T) {
 	ips, err := loadGeoIP("CN")
 	common.Must(err)
 
-	matcher := &GeoIPMatcher{}
+	matcher := &router.GeoIPMatcher{}
 	common.Must(matcher.Init(ips))
 
 	if matcher.Match([]byte{8, 8, 8, 8}) {
@@ -195,7 +141,7 @@ func TestGeoIPMatcher6US(t *testing.T) {
 	ips, err := loadGeoIP("US")
 	common.Must(err)
 
-	matcher := &GeoIPMatcher{}
+	matcher := &router.GeoIPMatcher{}
 	common.Must(matcher.Init(ips))
 
 	if !matcher.Match(net.ParseAddress("2001:4860:4860::8888").IP()) {
@@ -203,12 +149,12 @@ func TestGeoIPMatcher6US(t *testing.T) {
 	}
 }
 
-func loadGeoIP(country string) ([]*CIDR, error) {
+func loadGeoIP(country string) ([]*router.CIDR, error) {
 	geoipBytes, err := filesystem.ReadAsset("geoip.dat")
 	if err != nil {
 		return nil, err
 	}
-	var geoipList GeoIPList
+	var geoipList router.GeoIPList
 	if err := proto.Unmarshal(geoipBytes, &geoipList); err != nil {
 		return nil, err
 	}
@@ -226,7 +172,7 @@ func BenchmarkGeoIPMatcher4CN(b *testing.B) {
 	ips, err := loadGeoIP("CN")
 	common.Must(err)
 
-	matcher := &GeoIPMatcher{}
+	matcher := &router.GeoIPMatcher{}
 	common.Must(matcher.Init(ips))
 
 	b.ResetTimer()
@@ -240,7 +186,7 @@ func BenchmarkGeoIPMatcher6US(b *testing.B) {
 	ips, err := loadGeoIP("US")
 	common.Must(err)
 
-	matcher := &GeoIPMatcher{}
+	matcher := &router.GeoIPMatcher{}
 	common.Must(matcher.Init(ips))
 
 	b.ResetTimer()

app/router/condition_test.go

@@ -11,9 +11,6 @@ import (
 	. "github.com/xtls/xray-core/app/router"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
-	"github.com/xtls/xray-core/common/matcher/domain"
-	"github.com/xtls/xray-core/common/matcher/geoip"
-	"github.com/xtls/xray-core/common/matcher/geosite"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/platform"
 	"github.com/xtls/xray-core/common/platform/filesystem"
@@ -29,10 +26,10 @@ func init() {
 	common.Must(err)
 
 	if _, err := os.Stat(platform.GetAssetLocation("geoip.dat")); err != nil && os.IsNotExist(err) {
-		common.Must(filesystem.CopyFile(platform.GetAssetLocation("geoip.dat"), filepath.Join(wd, "..", "..", "resources", "geoip.dat")))
+		common.Must(filesystem.CopyFile(platform.GetAssetLocation("geoip.dat"), filepath.Join(wd, "..", "..", "release", "config", "geoip.dat")))
 	}
 	if _, err := os.Stat(platform.GetAssetLocation("geosite.dat")); err != nil && os.IsNotExist(err) {
-		common.Must(filesystem.CopyFile(platform.GetAssetLocation("geosite.dat"), filepath.Join(wd, "..", "..", "resources", "geosite.dat")))
+		common.Must(filesystem.CopyFile(platform.GetAssetLocation("geosite.dat"), filepath.Join(wd, "..", "..", "release", "config", "geosite.dat")))
 	}
 }
 
@@ -64,18 +61,18 @@ func TestRoutingRule(t *testing.T) {
 	}{
 		{
 			rule: &RoutingRule{
-				Domain: []*domain.Domain{
+				Domain: []*Domain{
 					{
 						Value: "example.com",
-						Type:  domain.MatchingType_Keyword,
+						Type:  Domain_Plain,
 					},
 					{
 						Value: "google.com",
-						Type:  domain.MatchingType_Subdomain,
+						Type:  Domain_Domain,
 					},
 					{
 						Value: "^facebook\\.com$",
-						Type:  domain.MatchingType_Regex,
+						Type:  Domain_Regex,
 					},
 				},
 			},
@@ -112,7 +109,7 @@ func TestRoutingRule(t *testing.T) {
 		},
 		{
 			rule: &RoutingRule{
-				Cidr: []*geoip.CIDR{
+				Cidr: []*CIDR{
 					{
 						Ip:     []byte{8, 8, 8, 8},
 						Prefix: 32,
@@ -148,9 +145,9 @@ func TestRoutingRule(t *testing.T) {
 		},
 		{
 			rule: &RoutingRule{
-				Geoip: []*geoip.GeoIP{
+				Geoip: []*GeoIP{
 					{
-						Cidr: []*geoip.CIDR{
+						Cidr: []*CIDR{
 							{
 								Ip:     []byte{8, 8, 8, 8},
 								Prefix: 32,
@@ -188,7 +185,7 @@ func TestRoutingRule(t *testing.T) {
 		},
 		{
 			rule: &RoutingRule{
-				SourceCidr: []*geoip.CIDR{
+				SourceCidr: []*CIDR{
 					{
 						Ip:     []byte{192, 168, 0, 0},
 						Prefix: 16,
@@ -336,19 +333,19 @@ func TestRoutingRule(t *testing.T) {
 	}
 }
 
-func loadGeoSite(country string) ([]*domain.Domain, error) {
+func loadGeoSite(country string) ([]*Domain, error) {
 	geositeBytes, err := filesystem.ReadAsset("geosite.dat")
 	if err != nil {
 		return nil, err
 	}
-	var geositeList geosite.GeoSiteList
+	var geositeList GeoSiteList
 	if err := proto.Unmarshal(geositeBytes, &geositeList); err != nil {
 		return nil, err
 	}
 
 	for _, site := range geositeList.Entry {
 		if site.CountryCode == country {
-			return geosite.ToDomains(site.Domain), nil
+			return site.Domain, nil
 		}
 	}
 
@@ -359,10 +356,10 @@ func TestChinaSites(t *testing.T) {
 	domains, err := loadGeoSite("CN")
 	common.Must(err)
 
-	matcher, err := domain.NewDomainMatcher(domains)
+	matcher, err := NewDomainMatcher(domains)
 	common.Must(err)
 
-	acMatcher, err := domain.NewMphMatcherGroup(domains)
+	acMatcher, err := NewMphMatcherGroup(domains)
 	common.Must(err)
 
 	type TestCase struct {
@@ -407,7 +404,7 @@ func BenchmarkMphDomainMatcher(b *testing.B) {
 	domains, err := loadGeoSite("CN")
 	common.Must(err)
 
-	matcher, err := domain.NewMphMatcherGroup(domains)
+	matcher, err := NewMphMatcherGroup(domains)
 	common.Must(err)
 
 	type TestCase struct {
@@ -449,7 +446,7 @@ func BenchmarkDomainMatcher(b *testing.B) {
 	domains, err := loadGeoSite("CN")
 	common.Must(err)
 
-	matcher, err := domain.NewDomainMatcher(domains)
+	matcher, err := NewDomainMatcher(domains)
 	common.Must(err)
 
 	type TestCase struct {
@@ -487,32 +484,13 @@ func BenchmarkDomainMatcher(b *testing.B) {
 	}
 }
 
-func loadGeoIP(country string) ([]*geoip.CIDR, error) {
-	geoipBytes, err := filesystem.ReadAsset("dat")
-	if err != nil {
-		return nil, err
-	}
-	var geoipList geoip.GeoIPList
-	if err := proto.Unmarshal(geoipBytes, &geoipList); err != nil {
-		return nil, err
-	}
-
-	for _, geoip := range geoipList.Entry {
-		if geoip.CountryCode == country {
-			return geoip.Cidr, nil
-		}
-	}
-
-	panic("country not found: " + country)
-}
-
 func BenchmarkMultiGeoIPMatcher(b *testing.B) {
-	var geoips []*geoip.GeoIP
+	var geoips []*GeoIP
 
 	{
 		ips, err := loadGeoIP("CN")
 		common.Must(err)
-		geoips = append(geoips, &geoip.GeoIP{
+		geoips = append(geoips, &GeoIP{
 			CountryCode: "CN",
 			Cidr:        ips,
 		})
@@ -521,7 +499,7 @@ func BenchmarkMultiGeoIPMatcher(b *testing.B) {
 	{
 		ips, err := loadGeoIP("JP")
 		common.Must(err)
-		geoips = append(geoips, &geoip.GeoIP{
+		geoips = append(geoips, &GeoIP{
 			CountryCode: "JP",
 			Cidr:        ips,
 		})
@@ -530,7 +508,7 @@ func BenchmarkMultiGeoIPMatcher(b *testing.B) {
 	{
 		ips, err := loadGeoIP("CA")
 		common.Must(err)
-		geoips = append(geoips, &geoip.GeoIP{
+		geoips = append(geoips, &GeoIP{
 			CountryCode: "CA",
 			Cidr:        ips,
 		})
@@ -539,13 +517,13 @@ func BenchmarkMultiGeoIPMatcher(b *testing.B) {
 	{
 		ips, err := loadGeoIP("US")
 		common.Must(err)
-		geoips = append(geoips, &geoip.GeoIP{
+		geoips = append(geoips, &GeoIP{
 			CountryCode: "US",
 			Cidr:        ips,
 		})
 	}
 
-	matcher, err := geoip.NewMultiGeoIPMatcher(geoips, false)
+	matcher, err := NewMultiGeoIPMatcher(geoips, false)
 	common.Must(err)
 
 	ctx := withOutbound(&session.Outbound{Target: net.TCPDestination(net.ParseAddress("8.8.8.8"), 80)})

app/router/config.go

@@ -1,13 +1,50 @@
 package router
 
 import (
-	dm "github.com/xtls/xray-core/common/matcher/domain"
-	"github.com/xtls/xray-core/common/matcher/geoip"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/features/outbound"
 	"github.com/xtls/xray-core/features/routing"
 )
 
+// CIDRList is an alias of []*CIDR to provide sort.Interface.
+type CIDRList []*CIDR
+
+// Len implements sort.Interface.
+func (l *CIDRList) Len() int {
+	return len(*l)
+}
+
+// Less implements sort.Interface.
+func (l *CIDRList) Less(i int, j int) bool {
+	ci := (*l)[i]
+	cj := (*l)[j]
+
+	if len(ci.Ip) < len(cj.Ip) {
+		return true
+	}
+
+	if len(ci.Ip) > len(cj.Ip) {
+		return false
+	}
+
+	for k := 0; k < len(ci.Ip); k++ {
+		if ci.Ip[k] < cj.Ip[k] {
+			return true
+		}
+
+		if ci.Ip[k] > cj.Ip[k] {
+			return false
+		}
+	}
+
+	return ci.Prefix < cj.Prefix
+}
+
+// Swap implements sort.Interface.
+func (l *CIDRList) Swap(i int, j int) {
+	(*l)[i], (*l)[j] = (*l)[j], (*l)[i]
+}
+
 type Rule struct {
 	Tag       string
 	Balancer  *Balancer
@@ -32,7 +69,7 @@ func (rr *RoutingRule) BuildCondition() (Condition, error) {
 	if len(rr.Domain) > 0 {
 		switch rr.DomainMatcher {
 		case "linear":
-			matcher, err := dm.NewDomainMatcher(rr.Domain)
+			matcher, err := NewDomainMatcher(rr.Domain)
 			if err != nil {
 				return nil, newError("failed to build domain condition").Base(err)
 			}
@@ -40,14 +77,13 @@ func (rr *RoutingRule) BuildCondition() (Condition, error) {
 		case "mph", "hybrid":
 			fallthrough
 		default:
-			matcher, err := dm.NewMphMatcherGroup(rr.Domain)
+			matcher, err := NewMphMatcherGroup(rr.Domain)
 			if err != nil {
 				return nil, newError("failed to build domain condition with MphDomainMatcher").Base(err)
 			}
 			newError("MphDomainMatcher is enabled for ", len(rr.Domain), " domain rule(s)").AtDebug().WriteToLog()
 			conds.Add(matcher)
 		}
-
 	}
 
 	if len(rr.UserEmail) > 0 {
@@ -75,13 +111,13 @@ func (rr *RoutingRule) BuildCondition() (Condition, error) {
 	}
 
 	if len(rr.Geoip) > 0 {
-		cond, err := geoip.NewMultiGeoIPMatcher(rr.Geoip, false)
+		cond, err := NewMultiGeoIPMatcher(rr.Geoip, false)
 		if err != nil {
 			return nil, err
 		}
 		conds.Add(cond)
 	} else if len(rr.Cidr) > 0 {
-		cond, err := geoip.NewMultiGeoIPMatcher([]*geoip.GeoIP{{Cidr: rr.Cidr}}, false)
+		cond, err := NewMultiGeoIPMatcher([]*GeoIP{{Cidr: rr.Cidr}}, false)
 		if err != nil {
 			return nil, err
 		}
@@ -89,13 +125,13 @@ func (rr *RoutingRule) BuildCondition() (Condition, error) {
 	}
 
 	if len(rr.SourceGeoip) > 0 {
-		cond, err := geoip.NewMultiGeoIPMatcher(rr.SourceGeoip, true)
+		cond, err := NewMultiGeoIPMatcher(rr.SourceGeoip, true)
 		if err != nil {
 			return nil, err
 		}
 		conds.Add(cond)
 	} else if len(rr.SourceCidr) > 0 {
-		cond, err := geoip.NewMultiGeoIPMatcher([]*geoip.GeoIP{{Cidr: rr.SourceCidr}}, true)
+		cond, err := NewMultiGeoIPMatcher([]*GeoIP{{Cidr: rr.SourceCidr}}, true)
 		if err != nil {
 			return nil, err
 		}

app/router/config.proto

@@ -8,8 +8,66 @@ option java_multiple_files = true;
 
 import "common/net/port.proto";
 import "common/net/network.proto";
-import "common/matcher/domain/domain.proto";
-import "common/matcher/geoip/geoip.proto";
+
+// Domain for routing decision.
+message Domain {
+  // Type of domain value.
+  enum Type {
+    // The value is used as is.
+    Plain = 0;
+    // The value is used as a regular expression.
+    Regex = 1;
+    // The value is a root domain.
+    Domain = 2;
+    // The value is a domain.
+    Full = 3;
+  }
+
+  // Domain matching type.
+  Type type = 1;
+
+  // Domain value.
+  string value = 2;
+
+  message Attribute {
+    string key = 1;
+
+    oneof typed_value {
+      bool bool_value = 2;
+      int64 int_value = 3;
+    }
+  }
+
+  // Attributes of this domain. May be used for filtering.
+  repeated Attribute attribute = 3;
+}
+
+// IP for routing decision, in CIDR form.
+message CIDR {
+  // IP address, should be either 4 or 16 bytes.
+  bytes ip = 1;
+
+  // Number of leading ones in the network mask.
+  uint32 prefix = 2;
+}
+
+message GeoIP {
+  string country_code = 1;
+  repeated CIDR cidr = 2;
+}
+
+message GeoIPList {
+  repeated GeoIP entry = 1;
+}
+
+message GeoSite {
+  string country_code = 1;
+  repeated Domain domain = 2;
+}
+
+message GeoSiteList {
+  repeated GeoSite entry = 1;
+}
 
 message RoutingRule {
   oneof target_tag {
@@ -21,17 +79,17 @@ message RoutingRule {
   }
 
   // List of domains for target domain matching.
-  repeated xray.common.matcher.domain.Domain domain = 2;
+  repeated Domain domain = 2;
 
   // List of CIDRs for target IP address matching.
   // Deprecated. Use geoip below.
-  repeated xray.common.matcher.geoip.CIDR cidr = 3 [deprecated = true];
+  repeated CIDR cidr = 3 [deprecated = true];
 
   // List of GeoIPs for target IP address matching. If this entry exists, the
   // cidr above will have no effect. GeoIP fields with the same country code are
   // supposed to contain exactly same content. They will be merged during
   // runtime. For customized GeoIPs, please leave country code empty.
-  repeated xray.common.matcher.geoip.GeoIP geoip = 10;
+  repeated GeoIP geoip = 10;
 
   // A range of port [from, to]. If the destination port is in this range, this
   // rule takes effect. Deprecated. Use port_list.
@@ -47,11 +105,11 @@ message RoutingRule {
   repeated xray.common.net.Network networks = 13;
 
   // List of CIDRs for source IP address matching.
-  repeated xray.common.matcher.geoip.CIDR source_cidr = 6 [deprecated = true];
+  repeated CIDR source_cidr = 6 [deprecated = true];
 
   // List of GeoIPs for source IP address matching. If this entry exists, the
   // source_cidr above will have no effect.
-  repeated xray.common.matcher.geoip.GeoIP source_geoip = 11;
+  repeated GeoIP source_geoip = 11;
 
   // List of ports for source port matching.
   xray.common.net.PortList source_port_list = 16;

app/router/router.go

@@ -80,7 +80,6 @@ func (r *Router) PickRoute(ctx routing.Context) (routing.Route, error) {
 }
 
 func (r *Router) pickRouteInternal(ctx routing.Context) (*Rule, routing.Context, error) {
-
 	// SkipDNSResolve is set from DNS module.
 	// the DOH remote server maybe a domain name,
 	// this prevents cycle resolving dead loop

app/router/router_test.go

@@ -4,10 +4,12 @@ import (
 	"context"
 	"testing"
 
+	"github.com/xtls/xray-core/features/dns"
+
 	"github.com/golang/mock/gomock"
+
 	. "github.com/xtls/xray-core/app/router"
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/matcher/geoip"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/session"
 	"github.com/xtls/xray-core/features/outbound"
@@ -102,7 +104,7 @@ func TestIPOnDemand(t *testing.T) {
 				TargetTag: &RoutingRule_Tag{
 					Tag: "test",
 				},
-				Cidr: []*geoip.CIDR{
+				Cidr: []*CIDR{
 					{
 						Ip:     []byte{192, 168, 0, 0},
 						Prefix: 16,
@@ -116,7 +118,11 @@ func TestIPOnDemand(t *testing.T) {
 	defer mockCtl.Finish()
 
 	mockDNS := mocks.NewDNSClient(mockCtl)
-	mockDNS.EXPECT().LookupIP(gomock.Eq("example.com")).Return([]net.IP{{192, 168, 0, 1}}, nil).AnyTimes()
+	mockDNS.EXPECT().LookupIP(gomock.Eq("example.com"), dns.IPOption{
+		IPv4Enable: true,
+		IPv6Enable: true,
+		FakeEnable: false,
+	}).Return([]net.IP{{192, 168, 0, 1}}, nil).AnyTimes()
 
 	r := new(Router)
 	common.Must(r.Init(config, mockDNS, nil))
@@ -137,7 +143,7 @@ func TestIPIfNonMatchDomain(t *testing.T) {
 				TargetTag: &RoutingRule_Tag{
 					Tag: "test",
 				},
-				Cidr: []*geoip.CIDR{
+				Cidr: []*CIDR{
 					{
 						Ip:     []byte{192, 168, 0, 0},
 						Prefix: 16,
@@ -151,7 +157,11 @@ func TestIPIfNonMatchDomain(t *testing.T) {
 	defer mockCtl.Finish()
 
 	mockDNS := mocks.NewDNSClient(mockCtl)
-	mockDNS.EXPECT().LookupIP(gomock.Eq("example.com")).Return([]net.IP{{192, 168, 0, 1}}, nil).AnyTimes()
+	mockDNS.EXPECT().LookupIP(gomock.Eq("example.com"), dns.IPOption{
+		IPv4Enable: true,
+		IPv6Enable: true,
+		FakeEnable: false,
+	}).Return([]net.IP{{192, 168, 0, 1}}, nil).AnyTimes()
 
 	r := new(Router)
 	common.Must(r.Init(config, mockDNS, nil))
@@ -172,7 +182,7 @@ func TestIPIfNonMatchIP(t *testing.T) {
 				TargetTag: &RoutingRule_Tag{
 					Tag: "test",
 				},
-				Cidr: []*geoip.CIDR{
+				Cidr: []*CIDR{
 					{
 						Ip:     []byte{127, 0, 0, 0},
 						Prefix: 8,

app/stats/command/command.go

@@ -11,7 +11,7 @@ import (
 
 	"github.com/xtls/xray-core/app/stats"
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/matcher/str"
+	"github.com/xtls/xray-core/common/strmatcher"
 	"github.com/xtls/xray-core/core"
 	feature_stats "github.com/xtls/xray-core/features/stats"
 )
@@ -49,7 +49,7 @@ func (s *statsServer) GetStats(ctx context.Context, request *GetStatsRequest) (*
 }
 
 func (s *statsServer) QueryStats(ctx context.Context, request *QueryStatsRequest) (*QueryStatsResponse, error) {
-	matcher, err := str.Substr.New(request.Pattern)
+	matcher, err := strmatcher.Substr.New(request.Pattern)
 	if err != nil {
 		return nil, err
 	}

app/stats/command/command.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
-// 	protoc        v3.14.0
+// 	protoc-gen-go v1.27.1
+// 	protoc        v3.18.0
 // source: app/stats/command/command.proto
 
 package command
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type GetStatsRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

app/stats/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
-// 	protoc        v3.14.0
+// 	protoc-gen-go v1.27.1
+// 	protoc        v3.18.0
 // source: app/stats/config.proto
 
 package stats
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

common/buf/buffer.go

@@ -24,10 +24,17 @@ type Buffer struct {
 	UDP   *net.Destination
 }
 
-// New creates a Buffer with 0 length and 2K capacity.
+// New creates a Buffer with 0 length and 8K capacity.
 func New() *Buffer {
+	buf := pool.Get().([]byte)
+	if cap(buf) >= Size {
+		buf = buf[:Size]
+	} else {
+		buf = make([]byte, Size)
+	}
+
 	return &Buffer{
-		v: pool.Get().([]byte),
+		v: buf,
 	}
 }
 
@@ -50,8 +57,15 @@ func NewExisted(b []byte) *Buffer {
 // StackNew creates a new Buffer object on stack.
 // This method is for buffers that is released in the same function.
 func StackNew() Buffer {
+	buf := pool.Get().([]byte)
+	if cap(buf) >= Size {
+		buf = buf[:Size]
+	} else {
+		buf = make([]byte, Size)
+	}
+
 	return Buffer{
-		v: pool.Get().([]byte),
+		v: buf,
 	}
 }
 
@@ -64,7 +78,10 @@ func (b *Buffer) Release() {
 	p := b.v
 	b.v = nil
 	b.Clear()
-	pool.Put(p)
+
+	if cap(p) == Size {
+		pool.Put(p)
+	}
 	b.UDP = nil
 }
 

common/buf/buffer_test.go

@@ -6,6 +6,7 @@ import (
 	"testing"
 
 	"github.com/google/go-cmp/cmp"
+
 	"github.com/xtls/xray-core/common"
 	. "github.com/xtls/xray-core/common/buf"
 )
@@ -77,6 +78,7 @@ func TestBufferByte(t *testing.T) {
 		buffer.Release()
 	}
 }
+
 func TestBufferResize(t *testing.T) {
 	buffer := New()
 	defer buffer.Release()

common/buf/io.go

@@ -6,6 +6,9 @@ import (
 	"os"
 	"syscall"
 	"time"
+
+	"github.com/xtls/xray-core/features/stats"
+	"github.com/xtls/xray-core/transport/internet/stat"
 )
 
 // Reader extends io.Reader with MultiBuffer.
@@ -29,9 +32,17 @@ type Writer interface {
 }
 
 // WriteAllBytes ensures all bytes are written into the given writer.
-func WriteAllBytes(writer io.Writer, payload []byte) error {
+func WriteAllBytes(writer io.Writer, payload []byte, c stats.Counter) error {
+	wc := 0
+	defer func() {
+		if c != nil {
+			c.Add(int64(wc))
+		}
+	}()
+
 	for len(payload) > 0 {
 		n, err := writer.Write(payload)
+		wc += n
 		if err != nil {
 			return err
 		}
@@ -65,7 +76,13 @@ func NewReader(reader io.Reader) Reader {
 			if err != nil {
 				newError("failed to get sysconn").Base(err).WriteToLog()
 			} else {
-				return NewReadVReader(reader, rawConn)
+				var counter stats.Counter
+
+				if statConn, ok := reader.(*stat.CounterConnection); ok {
+					reader = statConn.Connection
+					counter = statConn.ReadCounter
+				}
+				return NewReadVReader(reader, rawConn, counter)
 			}
 		}
 	}
@@ -104,13 +121,24 @@ func NewWriter(writer io.Writer) Writer {
 		return mw
 	}
 
-	if isPacketWriter(writer) {
+	iConn := writer
+	if statConn, ok := writer.(*stat.CounterConnection); ok {
+		iConn = statConn.Connection
+	}
+
+	if isPacketWriter(iConn) {
 		return &SequentialWriter{
 			Writer: writer,
 		}
 	}
 
+	var counter stats.Counter
+
+	if statConn, ok := writer.(*stat.CounterConnection); ok {
+		counter = statConn.WriteCounter
+	}
 	return &BufferToBytesWriter{
-		Writer: writer,
+		Writer:  iConn,
+		counter: counter,
 	}
 }

common/buf/multi_buffer_test.go

@@ -4,11 +4,11 @@ import (
 	"bytes"
 	"crypto/rand"
 	"io"
-	"io/ioutil"
 	"os"
 	"testing"
 
 	"github.com/google/go-cmp/cmp"
+
 	"github.com/xtls/xray-core/common"
 	. "github.com/xtls/xray-core/common/buf"
 )
@@ -119,7 +119,7 @@ func TestMultiBufferReadAllToByte(t *testing.T) {
 		common.Must(err)
 		f.Close()
 
-		cnt, err := ioutil.ReadFile(dat)
+		cnt, err := os.ReadFile(dat)
 		common.Must(err)
 
 		if d := cmp.Diff(buf2, cnt); d != "" {

common/buf/readv_posix.go

@@ -1,6 +1,5 @@
-// +build !windows
-// +build !wasm
-// +build !illumos
+//go:build !windows && !wasm && !illumos
+// +build !windows,!wasm,!illumos
 
 package buf
 

common/buf/readv_reader.go

@@ -1,12 +1,14 @@
+//go:build !wasm
 // +build !wasm
 
 package buf
 
 import (
 	"io"
-	"runtime"
 	"syscall"
 
+	"github.com/xtls/xray-core/features/stats"
+
 	"github.com/xtls/xray-core/common/platform"
 )
 
@@ -54,17 +56,19 @@ type ReadVReader struct {
 	rawConn syscall.RawConn
 	mr      multiReader
 	alloc   allocStrategy
+	counter stats.Counter
 }
 
 // NewReadVReader creates a new ReadVReader.
-func NewReadVReader(reader io.Reader, rawConn syscall.RawConn) *ReadVReader {
+func NewReadVReader(reader io.Reader, rawConn syscall.RawConn, counter stats.Counter) *ReadVReader {
 	return &ReadVReader{
 		Reader:  reader,
 		rawConn: rawConn,
 		alloc: allocStrategy{
 			current: 1,
 		},
-		mr: newMultiReader(),
+		mr:      newMultiReader(),
+		counter: counter,
 	}
 }
 
@@ -123,10 +127,16 @@ func (r *ReadVReader) ReadMultiBuffer() (MultiBuffer, error) {
 		if b.IsFull() {
 			r.alloc.Adjust(1)
 		}
+		if r.counter != nil && b != nil {
+			r.counter.Add(int64(b.Len()))
+		}
 		return MultiBuffer{b}, err
 	}
 
 	mb, err := r.readMulti()
+	if r.counter != nil && mb != nil {
+		r.counter.Add(int64(mb.Len()))
+	}
 	if err != nil {
 		return nil, err
 	}
@@ -134,17 +144,13 @@ func (r *ReadVReader) ReadMultiBuffer() (MultiBuffer, error) {
 	return mb, nil
 }
 
-var useReadv = true
+var useReadv bool
 
 func init() {
 	const defaultFlagValue = "NOT_DEFINED_AT_ALL"
 	value := platform.NewEnvFlag("xray.buf.readv").GetValue(func() string { return defaultFlagValue })
 	switch value {
-	case defaultFlagValue, "auto":
-		if (runtime.GOARCH == "386" || runtime.GOARCH == "amd64" || runtime.GOARCH == "s390x") && (runtime.GOOS == "linux" || runtime.GOOS == "darwin" || runtime.GOOS == "windows") {
-			useReadv = true
-		}
-	case "enable":
+	case defaultFlagValue, "auto", "enable":
 		useReadv = true
 	}
 }

common/buf/readv_reader_wasm.go

@@ -1,3 +1,4 @@
+//go:build wasm
 // +build wasm
 
 package buf

common/buf/readv_test.go

@@ -1,3 +1,4 @@
+//go:build !wasm
 // +build !wasm
 
 package buf_test
@@ -9,10 +10,11 @@ import (
 
 	"github.com/google/go-cmp/cmp"
 
+	"golang.org/x/sync/errgroup"
+
 	"github.com/xtls/xray-core/common"
 	. "github.com/xtls/xray-core/common/buf"
 	"github.com/xtls/xray-core/testing/servers/tcp"
-	"golang.org/x/sync/errgroup"
 )
 
 func TestReadvReader(t *testing.T) {
@@ -50,7 +52,7 @@ func TestReadvReader(t *testing.T) {
 	rawConn, err := conn.(*net.TCPConn).SyscallConn()
 	common.Must(err)
 
-	reader := NewReadVReader(conn, rawConn)
+	reader := NewReadVReader(conn, rawConn, nil)
 	var rmb MultiBuffer
 	for {
 		mb, err := reader.ReadMultiBuffer()

common/buf/readv_unix.go

@@ -1,3 +1,4 @@
+//go:build illumos
 // +build illumos
 
 package buf

common/buf/writer.go

@@ -5,6 +5,8 @@ import (
 	"net"
 	"sync"
 
+	"github.com/xtls/xray-core/features/stats"
+
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/errors"
 )
@@ -13,7 +15,8 @@ import (
 type BufferToBytesWriter struct {
 	io.Writer
 
-	cache [][]byte
+	counter stats.Counter
+	cache   [][]byte
 }
 
 // WriteMultiBuffer implements Writer. This method takes ownership of the given buffer.
@@ -26,7 +29,7 @@ func (w *BufferToBytesWriter) WriteMultiBuffer(mb MultiBuffer) error {
 	}
 
 	if len(mb) == 1 {
-		return WriteAllBytes(w.Writer, mb[0].Bytes())
+		return WriteAllBytes(w.Writer, mb[0].Bytes(), w.counter)
 	}
 
 	if cap(w.cache) < len(mb) {
@@ -45,9 +48,15 @@ func (w *BufferToBytesWriter) WriteMultiBuffer(mb MultiBuffer) error {
 	}()
 
 	nb := net.Buffers(bs)
-
+	wc := int64(0)
+	defer func() {
+		if w.counter != nil {
+			w.counter.Add(wc)
+		}
+	}()
 	for size > 0 {
 		n, err := nb.WriteTo(w.Writer)
+		wc += n
 		if err != nil {
 			return err
 		}
@@ -173,7 +182,7 @@ func (w *BufferedWriter) flushInternal() error {
 	w.buffer = nil
 
 	if writer, ok := w.writer.(io.Writer); ok {
-		err := WriteAllBytes(writer, b.Bytes())
+		err := WriteAllBytes(writer, b.Bytes(), nil)
 		b.Release()
 		return err
 	}

common/cache/lru.go

@@ -2,7 +2,7 @@ package cache
 
 import (
 	"container/list"
-	sync "sync"
+	"sync"
 )
 
 // Lru simple, fast lru cache implementation
@@ -28,7 +28,7 @@ type lruElement struct {
 
 // NewLru init a lru cache
 func NewLru(cap int) Lru {
-	return lru{
+	return &lru{
 		capacity:         cap,
 		doubleLinkedlist: list.New(),
 		keyToElement:     new(sync.Map),
@@ -37,49 +37,53 @@ func NewLru(cap int) Lru {
 	}
 }
 
-func (l lru) Get(key interface{}) (value interface{}, ok bool) {
+func (l *lru) Get(key interface{}) (value interface{}, ok bool) {
+	l.mu.Lock()
+	defer l.mu.Unlock()
 	if v, ok := l.keyToElement.Load(key); ok {
 		element := v.(*list.Element)
-		l.doubleLinkedlist.MoveBefore(element, l.doubleLinkedlist.Front())
-		return element.Value.(lruElement).value, true
+		l.doubleLinkedlist.MoveToFront(element)
+		return element.Value.(*lruElement).value, true
 	}
 	return nil, false
 }
 
-func (l lru) GetKeyFromValue(value interface{}) (key interface{}, ok bool) {
+func (l *lru) GetKeyFromValue(value interface{}) (key interface{}, ok bool) {
+	l.mu.Lock()
+	defer l.mu.Unlock()
 	if k, ok := l.valueToElement.Load(value); ok {
 		element := k.(*list.Element)
-		l.doubleLinkedlist.MoveBefore(element, l.doubleLinkedlist.Front())
-		return element.Value.(lruElement).key, true
+		l.doubleLinkedlist.MoveToFront(element)
+		return element.Value.(*lruElement).key, true
 	}
 	return nil, false
 }
 
-func (l lru) PeekKeyFromValue(value interface{}) (key interface{}, ok bool) {
+func (l *lru) PeekKeyFromValue(value interface{}) (key interface{}, ok bool) {
 	if k, ok := l.valueToElement.Load(value); ok {
 		element := k.(*list.Element)
-		return element.Value.(lruElement).key, true
+		return element.Value.(*lruElement).key, true
 	}
 	return nil, false
 }
 
-func (l lru) Put(key, value interface{}) {
-	e := lruElement{key, value}
+func (l *lru) Put(key, value interface{}) {
+	l.mu.Lock()
+	e := &lruElement{key, value}
 	if v, ok := l.keyToElement.Load(key); ok {
 		element := v.(*list.Element)
 		element.Value = e
-		l.doubleLinkedlist.MoveBefore(element, l.doubleLinkedlist.Front())
+		l.doubleLinkedlist.MoveToFront(element)
 	} else {
-		l.mu.Lock()
 		element := l.doubleLinkedlist.PushFront(e)
 		l.keyToElement.Store(key, element)
 		l.valueToElement.Store(value, element)
 		if l.doubleLinkedlist.Len() > l.capacity {
 			toBeRemove := l.doubleLinkedlist.Back()
 			l.doubleLinkedlist.Remove(toBeRemove)
-			l.keyToElement.Delete(toBeRemove.Value.(lruElement).key)
-			l.valueToElement.Delete(toBeRemove.Value.(lruElement).value)
+			l.keyToElement.Delete(toBeRemove.Value.(*lruElement).key)
+			l.valueToElement.Delete(toBeRemove.Value.(*lruElement).value)
 		}
-		l.mu.Unlock()
 	}
+	l.mu.Unlock()
 }

common/common.go

@@ -5,7 +5,6 @@ package common
 import (
 	"fmt"
 	"go/build"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"strings"
@@ -15,10 +14,8 @@ import (
 
 //go:generate go run github.com/xtls/xray-core/common/errors/errorgen
 
-var (
-	// ErrNoClue is for the situation that existing information is not enough to make a decision. For example, Router may return this error when there is no suitable route.
-	ErrNoClue = errors.New("not enough information for making a decision")
-)
+// ErrNoClue is for the situation that existing information is not enough to make a decision. For example, Router may return this error when there is no suitable route.
+var ErrNoClue = errors.New("not enough information for making a decision")
 
 // Must panics if err is not nil.
 func Must(err error) {
@@ -69,7 +66,7 @@ func GetRuntimeEnv(key string) (string, error) {
 	}
 	var data []byte
 	var runtimeEnv string
-	data, readErr := ioutil.ReadFile(file)
+	data, readErr := os.ReadFile(file)
 	if readErr != nil {
 		return "", readErr
 	}
@@ -131,7 +128,7 @@ func GetModuleName(pathToProjectRoot string) (string, error) {
 	for {
 		if idx := strings.LastIndex(loopPath, string(filepath.Separator)); idx >= 0 {
 			gomodPath := filepath.Join(loopPath, "go.mod")
-			gomodBytes, err := ioutil.ReadFile(gomodPath)
+			gomodBytes, err := os.ReadFile(gomodPath)
 			if err != nil {
 				loopPath = loopPath[:idx]
 				continue

common/crypto/auth.go

@@ -290,7 +290,6 @@ func (w *AuthenticationWriter) writeStream(mb buf.MultiBuffer) error {
 		mb = nb
 
 		eb, err := w.seal(rawBytes[:nBytes])
-
 		if err != nil {
 			buf.ReleaseMulti(mb2Write)
 			return err

common/crypto/chacha20_test.go

@@ -18,7 +18,7 @@ func mustDecodeHex(s string) []byte {
 }
 
 func TestChaCha20Stream(t *testing.T) {
-	var cases = []struct {
+	cases := []struct {
 		key    []byte
 		iv     []byte
 		output []byte

common/crypto/internal/chacha_core.generated.go

@@ -3,7 +3,7 @@ package internal
 import "encoding/binary"
 
 func ChaCha20Block(s *[16]uint32, out []byte, rounds int) {
-	var x0, x1, x2, x3, x4, x5, x6, x7, x8, x9, x10, x11, x12, x13, x14, x15 = s[0], s[1], s[2], s[3], s[4], s[5], s[6], s[7], s[8], s[9], s[10], s[11], s[12], s[13], s[14], s[15]
+	x0, x1, x2, x3, x4, x5, x6, x7, x8, x9, x10, x11, x12, x13, x14, x15 := s[0], s[1], s[2], s[3], s[4], s[5], s[6], s[7], s[8], s[9], s[10], s[11], s[12], s[13], s[14], s[15]
 	for i := 0; i < rounds; i += 2 {
 		var x uint32
 

common/crypto/internal/chacha_core_gen.go

@@ -1,3 +1,4 @@
+//go:build generate
 // +build generate
 
 package main
@@ -55,7 +56,7 @@ func ChaCha20Block(s *[16]uint32, out []byte, rounds int) {
 }
 
 func main() {
-	file, err := os.OpenFile("chacha_core.generated.go", os.O_WRONLY|os.O_TRUNC|os.O_CREATE, 0644)
+	file, err := os.OpenFile("chacha_core.generated.go", os.O_WRONLY|os.O_TRUNC|os.O_CREATE, 0o644)
 	if err != nil {
 		log.Fatalf("Failed to generate chacha_core.go: %v", err)
 	}

common/crypto/io.go

@@ -27,9 +27,7 @@ func (r *CryptionReader) Read(data []byte) (int, error) {
 	return nBytes, err
 }
 
-var (
-	_ buf.Writer = (*CryptionWriter)(nil)
-)
+var _ buf.Writer = (*CryptionWriter)(nil)
 
 type CryptionWriter struct {
 	stream    cipher.Stream
@@ -50,7 +48,7 @@ func NewCryptionWriter(stream cipher.Stream, writer io.Writer) *CryptionWriter {
 func (w *CryptionWriter) Write(data []byte) (int, error) {
 	w.stream.XORKeyStream(data, data)
 
-	if err := buf.WriteAllBytes(w.writer, data); err != nil {
+	if err := buf.WriteAllBytes(w.writer, data, nil); err != nil {
 		return 0, err
 	}
 	return len(data), nil

common/errors/errorgen/main.go

@@ -2,11 +2,8 @@ package main
 
 import (
 	"fmt"
-	"log"
 	"os"
 	"path/filepath"
-
-	"github.com/xtls/xray-core/common"
 )
 
 func main() {
@@ -20,26 +17,21 @@ func main() {
 		pkg = "core"
 	}
 
-	moduleName, gmnErr := common.GetModuleName(pwd)
-	if gmnErr != nil {
-		fmt.Println("can not get module path", gmnErr)
-		os.Exit(1)
-	}
-
-	file, err := os.OpenFile("errors.generated.go", os.O_WRONLY|os.O_TRUNC|os.O_CREATE, 0644)
+	file, err := os.OpenFile("errors.generated.go", os.O_WRONLY|os.O_TRUNC|os.O_CREATE, 0o644)
 	if err != nil {
-		log.Fatalf("Failed to generate errors.generated.go: %v", err)
+		fmt.Printf("Failed to generate errors.generated.go: %v", err)
 		os.Exit(1)
 	}
 	defer file.Close()
 
-	fmt.Fprintln(file, "package", pkg)
-	fmt.Fprintln(file, "")
-	fmt.Fprintln(file, "import \""+moduleName+"/common/errors\"")
-	fmt.Fprintln(file, "")
-	fmt.Fprintln(file, "type errPathObjHolder struct{}")
-	fmt.Fprintln(file, "")
-	fmt.Fprintln(file, "func newError(values ...interface{}) *errors.Error {")
-	fmt.Fprintln(file, "	return errors.New(values...).WithPathObj(errPathObjHolder{})")
-	fmt.Fprintln(file, "}")
+	fmt.Fprintf(file, `package %s
+
+import "github.com/xtls/xray-core/common/errors"
+
+type errPathObjHolder struct{}
+
+func newError(values ...interface{}) *errors.Error {
+	return errors.New(values...).WithPathObj(errPathObjHolder{})
+}
+`, pkg)
 }

common/log/log.go

@@ -32,9 +32,7 @@ func Record(msg Message) {
 	logHandler.Handle(msg)
 }
 
-var (
-	logHandler syncHandler
-)
+var logHandler syncHandler
 
 // RegisterHandler register a new handler as current log handler. Previous registered handler will be discarded.
 func RegisterHandler(handler Handler) {

common/log/log.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
-// 	protoc        v3.14.0
+// 	protoc-gen-go v1.27.1
+// 	protoc        v3.18.0
 // source: common/log/log.proto
 
 package log
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Severity int32
 
 const (

common/log/logger.go

@@ -130,13 +130,13 @@ func CreateStderrLogWriter() WriterCreator {
 
 // CreateFileLogWriter returns a LogWriterCreator that creates LogWriter for the given file.
 func CreateFileLogWriter(path string) (WriterCreator, error) {
-	file, err := os.OpenFile(path, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0600)
+	file, err := os.OpenFile(path, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0o600)
 	if err != nil {
 		return nil, err
 	}
 	file.Close()
 	return func() Writer {
-		file, err := os.OpenFile(path, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0600)
+		file, err := os.OpenFile(path, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0o600)
 		if err != nil {
 			return nil
 		}

common/log/logger_test.go

@@ -1,7 +1,6 @@
 package log_test
 
 import (
-	"io/ioutil"
 	"os"
 	"strings"
 	"testing"
@@ -13,7 +12,7 @@ import (
 )
 
 func TestFileLogger(t *testing.T) {
-	f, err := ioutil.TempFile("", "vtest")
+	f, err := os.CreateTemp("", "vtest")
 	common.Must(err)
 	path := f.Name()
 	common.Must(f.Close())

common/matcher/domain/conf/conf.go

@@ -1,3 +0,0 @@
-package conf
-
-//go:generate go run github.com/xtls/xray-core/common/errors/errorgen

common/matcher/domain/conf/domain.go

@@ -1,94 +0,0 @@
-package conf
-
-import (
-	"strings"
-
-	dm "github.com/xtls/xray-core/common/matcher/domain"
-	"github.com/xtls/xray-core/common/matcher/geosite"
-)
-
-func ParseDomainRule(domain string) ([]*dm.Domain, error) {
-	if strings.HasPrefix(domain, "geosite:") {
-		country := strings.ToUpper(domain[8:])
-		domains, err := geosite.LoadGeositeWithAttr("geosite.dat", country)
-		if err != nil {
-			return nil, newError("failed to load geosite: ", country).Base(err)
-		}
-		return domains, nil
-	}
-	var isExtDatFile = 0
-	{
-		const prefix = "ext:"
-		if strings.HasPrefix(domain, prefix) {
-			isExtDatFile = len(prefix)
-		}
-		const prefixQualified = "ext-domain:"
-		if strings.HasPrefix(domain, prefixQualified) {
-			isExtDatFile = len(prefixQualified)
-		}
-	}
-	if isExtDatFile != 0 {
-		kv := strings.Split(domain[isExtDatFile:], ":")
-		if len(kv) != 2 {
-			return nil, newError("invalid external resource: ", domain)
-		}
-		filename := kv[0]
-		country := kv[1]
-		domains, err := geosite.LoadGeositeWithAttr(filename, country)
-		if err != nil {
-			return nil, newError("failed to load external sites: ", country, " from ", filename).Base(err)
-		}
-		return domains, nil
-	}
-
-	domainRule := new(dm.Domain)
-	switch {
-	case strings.HasPrefix(domain, "regexp:"):
-		regexpVal := domain[7:]
-		if len(regexpVal) == 0 {
-			return nil, newError("empty regexp type of rule: ", domain)
-		}
-		domainRule.Type = dm.MatchingType_Regex
-		domainRule.Value = regexpVal
-
-	case strings.HasPrefix(domain, "domain:"):
-		domainName := domain[7:]
-		if len(domainName) == 0 {
-			return nil, newError("empty domain type of rule: ", domain)
-		}
-		domainRule.Type = dm.MatchingType_Subdomain
-		domainRule.Value = domainName
-
-	case strings.HasPrefix(domain, "full:"):
-		fullVal := domain[5:]
-		if len(fullVal) == 0 {
-			return nil, newError("empty full domain type of rule: ", domain)
-		}
-		domainRule.Type = dm.MatchingType_Full
-		domainRule.Value = fullVal
-
-	case strings.HasPrefix(domain, "keyword:"):
-		keywordVal := domain[8:]
-		if len(keywordVal) == 0 {
-			return nil, newError("empty keyword type of rule: ", domain)
-		}
-		domainRule.Type = dm.MatchingType_Keyword
-		domainRule.Value = keywordVal
-
-	case strings.HasPrefix(domain, "dotless:"):
-		domainRule.Type = dm.MatchingType_Regex
-		switch substr := domain[8:]; {
-		case substr == "":
-			domainRule.Value = "^[^.]*$"
-		case !strings.Contains(substr, "."):
-			domainRule.Value = "^[^.]*" + substr + "[^.]*$"
-		default:
-			return nil, newError("substr in dotless rule should not contain a dot: ", substr)
-		}
-
-	default:
-		domainRule.Type = dm.MatchingType_Keyword
-		domainRule.Value = domain
-	}
-	return []*dm.Domain{domainRule}, nil
-}

common/matcher/domain/conf/errors.generated.go

@@ -1,9 +0,0 @@
-package conf
-
-import "github.com/xtls/xray-core/common/errors"
-
-type errPathObjHolder struct{}
-
-func newError(values ...interface{}) *errors.Error {
-	return errors.New(values...).WithPathObj(errPathObjHolder{})
-}

common/matcher/domain/domain.go

@@ -1,3 +0,0 @@
-package domain
-
-//go:generate go run github.com/xtls/xray-core/common/errors/errorgen

common/matcher/domain/domain.pb.go

@@ -1,229 +0,0 @@
-// Code generated by protoc-gen-go. DO NOT EDIT.
-// versions:
-// 	protoc-gen-go v1.25.0
-// 	protoc        v3.15.6
-// source: common/matcher/domain/domain.proto
-
-package domain
-
-import (
-	proto "github.com/golang/protobuf/proto"
-	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
-	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
-	reflect "reflect"
-	sync "sync"
-)
-
-const (
-	// Verify that this generated code is sufficiently up-to-date.
-	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
-	// Verify that runtime/protoimpl is sufficiently up-to-date.
-	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
-)
-
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
-type MatchingType int32
-
-const (
-	MatchingType_Full      MatchingType = 0
-	MatchingType_Subdomain MatchingType = 1
-	MatchingType_Keyword   MatchingType = 2
-	MatchingType_Regex     MatchingType = 3
-)
-
-// Enum value maps for MatchingType.
-var (
-	MatchingType_name = map[int32]string{
-		0: "Full",
-		1: "Subdomain",
-		2: "Keyword",
-		3: "Regex",
-	}
-	MatchingType_value = map[string]int32{
-		"Full":      0,
-		"Subdomain": 1,
-		"Keyword":   2,
-		"Regex":     3,
-	}
-)
-
-func (x MatchingType) Enum() *MatchingType {
-	p := new(MatchingType)
-	*p = x
-	return p
-}
-
-func (x MatchingType) String() string {
-	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
-}
-
-func (MatchingType) Descriptor() protoreflect.EnumDescriptor {
-	return file_common_matcher_domain_domain_proto_enumTypes[0].Descriptor()
-}
-
-func (MatchingType) Type() protoreflect.EnumType {
-	return &file_common_matcher_domain_domain_proto_enumTypes[0]
-}
-
-func (x MatchingType) Number() protoreflect.EnumNumber {
-	return protoreflect.EnumNumber(x)
-}
-
-// Deprecated: Use MatchingType.Descriptor instead.
-func (MatchingType) EnumDescriptor() ([]byte, []int) {
-	return file_common_matcher_domain_domain_proto_rawDescGZIP(), []int{0}
-}
-
-type Domain struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	// Domain matching type.
-	Type MatchingType `protobuf:"varint,1,opt,name=type,proto3,enum=xray.common.matcher.domain.MatchingType" json:"type,omitempty"`
-	// Domain value.
-	Value string `protobuf:"bytes,2,opt,name=value,proto3" json:"value,omitempty"`
-}
-
-func (x *Domain) Reset() {
-	*x = Domain{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_common_matcher_domain_domain_proto_msgTypes[0]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *Domain) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*Domain) ProtoMessage() {}
-
-func (x *Domain) ProtoReflect() protoreflect.Message {
-	mi := &file_common_matcher_domain_domain_proto_msgTypes[0]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use Domain.ProtoReflect.Descriptor instead.
-func (*Domain) Descriptor() ([]byte, []int) {
-	return file_common_matcher_domain_domain_proto_rawDescGZIP(), []int{0}
-}
-
-func (x *Domain) GetType() MatchingType {
-	if x != nil {
-		return x.Type
-	}
-	return MatchingType_Full
-}
-
-func (x *Domain) GetValue() string {
-	if x != nil {
-		return x.Value
-	}
-	return ""
-}
-
-var File_common_matcher_domain_domain_proto protoreflect.FileDescriptor
-
-var file_common_matcher_domain_domain_proto_rawDesc = []byte{
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-}
-
-var (
-	file_common_matcher_domain_domain_proto_rawDescOnce sync.Once
-	file_common_matcher_domain_domain_proto_rawDescData = file_common_matcher_domain_domain_proto_rawDesc
-)
-
-func file_common_matcher_domain_domain_proto_rawDescGZIP() []byte {
-	file_common_matcher_domain_domain_proto_rawDescOnce.Do(func() {
-		file_common_matcher_domain_domain_proto_rawDescData = protoimpl.X.CompressGZIP(file_common_matcher_domain_domain_proto_rawDescData)
-	})
-	return file_common_matcher_domain_domain_proto_rawDescData
-}
-
-var file_common_matcher_domain_domain_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
-var file_common_matcher_domain_domain_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
-var file_common_matcher_domain_domain_proto_goTypes = []interface{}{
-	(MatchingType)(0), // 0: xray.common.matcher.domain.MatchingType
-	(*Domain)(nil),    // 1: xray.common.matcher.domain.Domain
-}
-var file_common_matcher_domain_domain_proto_depIdxs = []int32{
-	0, // 0: xray.common.matcher.domain.Domain.type:type_name -> xray.common.matcher.domain.MatchingType
-	1, // [1:1] is the sub-list for method output_type
-	1, // [1:1] is the sub-list for method input_type
-	1, // [1:1] is the sub-list for extension type_name
-	1, // [1:1] is the sub-list for extension extendee
-	0, // [0:1] is the sub-list for field type_name
-}
-
-func init() { file_common_matcher_domain_domain_proto_init() }
-func file_common_matcher_domain_domain_proto_init() {
-	if File_common_matcher_domain_domain_proto != nil {
-		return
-	}
-	if !protoimpl.UnsafeEnabled {
-		file_common_matcher_domain_domain_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*Domain); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-	}
-	type x struct{}
-	out := protoimpl.TypeBuilder{
-		File: protoimpl.DescBuilder{
-			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
-			RawDescriptor: file_common_matcher_domain_domain_proto_rawDesc,
-			NumEnums:      1,
-			NumMessages:   1,
-			NumExtensions: 0,
-			NumServices:   0,
-		},
-		GoTypes:           file_common_matcher_domain_domain_proto_goTypes,
-		DependencyIndexes: file_common_matcher_domain_domain_proto_depIdxs,
-		EnumInfos:         file_common_matcher_domain_domain_proto_enumTypes,
-		MessageInfos:      file_common_matcher_domain_domain_proto_msgTypes,
-	}.Build()
-	File_common_matcher_domain_domain_proto = out.File
-	file_common_matcher_domain_domain_proto_rawDesc = nil
-	file_common_matcher_domain_domain_proto_goTypes = nil
-	file_common_matcher_domain_domain_proto_depIdxs = nil
-}

common/matcher/domain/domain.proto

@@ -1,39 +0,0 @@
-syntax = "proto3";
-
-package xray.common.matcher.domain;
-option csharp_namespace = "Xray.Common.Matcher.Domain";
-option go_package = "github.com/xtls/xray-core/common/matcher/domain";
-option java_package = "com.xray.common.matcher.domain";
-option java_multiple_files = true;
-
-enum MatchingType {
-  Full = 0;
-  Subdomain = 1;
-  Keyword = 2;
-  Regex = 3;
-}
-
-message Domain {
-  // Domain matching type.
-  MatchingType type = 1;
-
-  // Domain value.
-  string value = 2;
-}
-
-/*
-func toDomainMatchingType(t router.Domain_Type) dns.DomainMatchingType {
-	switch t {
-	case router.Domain_Domain:
-		return dns.DomainMatchingType_Subdomain
-	case router.Domain_Full:
-		return dns.DomainMatchingType_Full
-	case router.Domain_Plain:
-		return dns.DomainMatchingType_Keyword
-	case router.Domain_Regex:
-		return dns.DomainMatchingType_Regex
-	default:
-		panic("unknown domain type")
-	}
-}
- */

common/matcher/domain/errors.generated.go

@@ -1,9 +0,0 @@
-package domain
-
-import "github.com/xtls/xray-core/common/errors"
-
-type errPathObjHolder struct{}
-
-func newError(values ...interface{}) *errors.Error {
-	return errors.New(values...).WithPathObj(errPathObjHolder{})
-}

common/matcher/domain/matcher.go

@@ -1,79 +0,0 @@
-package domain
-
-import (
-	"strings"
-
-	"github.com/xtls/xray-core/common/matcher/str"
-	"github.com/xtls/xray-core/features/routing"
-)
-
-var matcherTypeMap = map[MatchingType]str.Type{
-	MatchingType_Keyword:   str.Substr,
-	MatchingType_Regex:     str.Regex,
-	MatchingType_Subdomain: str.Domain,
-	MatchingType_Full:      str.Full,
-}
-
-func domainToMatcher(domain *Domain) (str.Matcher, error) {
-	matcherType, f := matcherTypeMap[domain.Type]
-	if !f {
-		return nil, newError("unsupported domain type", domain.Type)
-	}
-
-	matcher, err := matcherType.New(domain.Value)
-	if err != nil {
-		return nil, newError("failed to create domain matcher").Base(err)
-	}
-
-	return matcher, nil
-}
-
-type DomainMatcher struct {
-	matchers str.IndexMatcher
-}
-
-func NewMphMatcherGroup(domains []*Domain) (*DomainMatcher, error) {
-	g := str.NewMphMatcherGroup()
-	for _, d := range domains {
-		matcherType, f := matcherTypeMap[d.Type]
-		if !f {
-			return nil, newError("unsupported domain type", d.Type)
-		}
-		_, err := g.AddPattern(d.Value, matcherType)
-		if err != nil {
-			return nil, err
-		}
-	}
-	g.Build()
-	return &DomainMatcher{
-		matchers: g,
-	}, nil
-}
-
-func NewDomainMatcher(domains []*Domain) (*DomainMatcher, error) {
-	g := new(str.MatcherGroup)
-	for _, d := range domains {
-		m, err := domainToMatcher(d)
-		if err != nil {
-			return nil, err
-		}
-		g.Add(m)
-	}
-
-	return &DomainMatcher{
-		matchers: g,
-	}, nil
-}
-
-func (m *DomainMatcher) ApplyDomain(domain string) bool {
-	return len(m.matchers.Match(strings.ToLower(domain))) > 0
-}
-
-// Apply implements Condition.
-func (m *DomainMatcher) Apply(ctx routing.Context) bool {
-	domain := ctx.GetTargetDomain()
-	if len(domain) == 0 {
-		return false
-	}
-	return m.ApplyDomain(domain)
-}

common/matcher/geoip/conf.go

@@ -1,224 +0,0 @@
-package geoip
-
-import (
-	"runtime"
-	"strconv"
-	"strings"
-
-	"github.com/golang/protobuf/proto"
-	"github.com/xtls/xray-core/common/net"
-	"github.com/xtls/xray-core/common/platform/filesystem"
-)
-
-var (
-	FileCache = make(map[string][]byte)
-	IPCache   = make(map[string]*GeoIP)
-)
-
-func LoadGeoIP(code string) ([]*CIDR, error) {
-	return LoadIPFile("geoip.dat", code)
-}
-
-func LoadIPFile(file, code string) ([]*CIDR, error) {
-	index := file + ":" + code
-	if IPCache[index] == nil {
-		bs, err := loadFile(file)
-		if err != nil {
-			return nil, newError("failed to load file: ", file).Base(err)
-		}
-		bs = find(bs, []byte(code))
-		if bs == nil {
-			return nil, newError("code not found in ", file, ": ", code)
-		}
-		var geoipdat GeoIP
-		if err := proto.Unmarshal(bs, &geoipdat); err != nil {
-			return nil, newError("error unmarshal IP in ", file, ": ", code).Base(err)
-		}
-		defer runtime.GC()        // or debug.FreeOSMemory()
-		return geoipdat.Cidr, nil // do not cache geoip
-		// IPCache[index] = &geoipdat
-	}
-	return IPCache[index].Cidr, nil
-}
-
-func loadFile(file string) ([]byte, error) {
-	if FileCache[file] == nil {
-		bs, err := filesystem.ReadAsset(file)
-		if err != nil {
-			return nil, newError("failed to open file: ", file).Base(err)
-		}
-		if len(bs) == 0 {
-			return nil, newError("empty file: ", file)
-		}
-		// Do not cache file, may save RAM when there
-		// are many files, but consume CPU each time.
-		return bs, nil
-		// FileCache[file] = bs
-	}
-	return FileCache[file], nil
-}
-
-func find(data, code []byte) []byte {
-	codeL := len(code)
-	if codeL == 0 {
-		return nil
-	}
-	for {
-		dataL := len(data)
-		if dataL < 2 {
-			return nil
-		}
-		x, y := proto.DecodeVarint(data[1:])
-		if x == 0 && y == 0 {
-			return nil
-		}
-		headL, bodyL := 1+y, int(x)
-		dataL -= headL
-		if dataL < bodyL {
-			return nil
-		}
-		data = data[headL:]
-		if int(data[1]) == codeL {
-			for i := 0; i < codeL && data[2+i] == code[i]; i++ {
-				if i+1 == codeL {
-					return data[:bodyL]
-				}
-			}
-		}
-		if dataL == bodyL {
-			return nil
-		}
-		data = data[bodyL:]
-	}
-}
-
-func ParseIPList(ips []string) ([]*GeoIP, error) {
-	var geoipList []*GeoIP
-	var customCidrs []*CIDR
-
-	for _, ip := range ips {
-		if strings.HasPrefix(ip, "geoip:") {
-			country := ip[6:]
-			isReverseMatch := false
-			if strings.HasPrefix(country, "!") {
-				country = country[1:]
-				isReverseMatch = true
-			}
-
-			geoipc, err := LoadGeoIP(strings.ToUpper(country))
-			if err != nil {
-				return nil, newError("failed to load GeoIP: ", country).Base(err)
-			}
-
-			geoipList = append(geoipList, &GeoIP{
-				CountryCode:  strings.ToUpper(country),
-				Cidr:         geoipc,
-				ReverseMatch: isReverseMatch,
-			})
-			continue
-		}
-		var isExtDatFile = 0
-		{
-			const prefix = "ext:"
-			if strings.HasPrefix(ip, prefix) {
-				isExtDatFile = len(prefix)
-			}
-			const prefixQualified = "ext-ip:"
-			if strings.HasPrefix(ip, prefixQualified) {
-				isExtDatFile = len(prefixQualified)
-			}
-		}
-		if isExtDatFile != 0 {
-			kv := strings.Split(ip[isExtDatFile:], ":")
-			if len(kv) != 2 {
-				return nil, newError("invalid external resource: ", ip)
-			}
-
-			filename := kv[0]
-			country := kv[1]
-			if len(filename) == 0 || len(country) == 0 {
-				return nil, newError("empty filename or empty country in rule")
-			}
-
-			isReverseMatch := false
-			if strings.HasPrefix(country, "!") {
-				country = country[1:]
-				isReverseMatch = true
-			}
-			geoipc, err := LoadIPFile(filename, strings.ToUpper(country))
-			if err != nil {
-				return nil, newError("failed to load IPs: ", country, " from ", filename).Base(err)
-			}
-
-			geoipList = append(geoipList, &GeoIP{
-				CountryCode:  strings.ToUpper(filename + "_" + country),
-				Cidr:         geoipc,
-				ReverseMatch: isReverseMatch,
-			})
-
-			continue
-		}
-
-		ipRule, err := ParseIP(ip)
-		if err != nil {
-			return nil, newError("invalid IP: ", ip).Base(err)
-		}
-		customCidrs = append(customCidrs, ipRule)
-	}
-
-	if len(customCidrs) > 0 {
-		geoipList = append(geoipList, &GeoIP{
-			Cidr: customCidrs,
-		})
-	}
-
-	return geoipList, nil
-}
-
-func ParseIP(s string) (*CIDR, error) {
-	var addr, mask string
-	i := strings.Index(s, "/")
-	if i < 0 {
-		addr = s
-	} else {
-		addr = s[:i]
-		mask = s[i+1:]
-	}
-	ip := net.ParseAddress(addr)
-	switch ip.Family() {
-	case net.AddressFamilyIPv4:
-		bits := uint32(32)
-		if len(mask) > 0 {
-			bits64, err := strconv.ParseUint(mask, 10, 32)
-			if err != nil {
-				return nil, newError("invalid network mask for router: ", mask).Base(err)
-			}
-			bits = uint32(bits64)
-		}
-		if bits > 32 {
-			return nil, newError("invalid network mask for router: ", bits)
-		}
-		return &CIDR{
-			Ip:     ip.IP(),
-			Prefix: bits,
-		}, nil
-	case net.AddressFamilyIPv6:
-		bits := uint32(128)
-		if len(mask) > 0 {
-			bits64, err := strconv.ParseUint(mask, 10, 32)
-			if err != nil {
-				return nil, newError("invalid network mask for router: ", mask).Base(err)
-			}
-			bits = uint32(bits64)
-		}
-		if bits > 128 {
-			return nil, newError("invalid network mask for router: ", bits)
-		}
-		return &CIDR{
-			Ip:     ip.IP(),
-			Prefix: bits,
-		}, nil
-	default:
-		return nil, newError("unsupported address for router: ", s)
-	}
-}