Merge pull request #544 from AkinoKaede/dns-geo

Merge branch 'dns' into dns-geo

README.md

@@ -23,8 +23,9 @@
   - [Xray4Magisk](https://github.com/CerteKim/Xray4Magisk)
   - [Xray_For_Magisk](https://github.com/E7KMbb/Xray_For_Magisk)
 - Homebrew
-  - [Repository 0](https://github.com/N4FA/homebrew-xray)
-  - [Repository 1](https://github.com/xiruizhao/homebrew-xray)
+  - `brew install xray`
+  - [(Tap) Repository 0](https://github.com/N4FA/homebrew-xray)
+  - [(Tap) Repository 1](https://github.com/xiruizhao/homebrew-xray)
 
 ## Usage
 

app/dispatcher/default.go

@@ -178,8 +178,8 @@ 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()
-	for _, d := range request.ExcludeForDomain {
-		if domain == d {
+	if request.ExcludedDomainMatcher != nil {
+		if request.ExcludedDomainMatcher.ApplyDomain(domain) {
 			return false
 		}
 	}
@@ -196,7 +196,7 @@ func shouldOverride(ctx context.Context, result SniffResult, request session.Sni
 			return true
 		}
 		if fakeDNSEngine != nil && protocolString != "bittorrent" && p == "fakedns" &&
-			fakeDNSEngine.GetFakeIPRange().Contains(destination.Address.IP()) {
+			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
 		}
@@ -205,6 +205,16 @@ func shouldOverride(ctx context.Context, result SniffResult, request session.Sni
 	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() {
@@ -222,6 +232,12 @@ 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)
@@ -309,15 +325,10 @@ 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
 
-	skipRoutePick := false
-	if content := session.ContentFromContext(ctx); content != nil {
-		skipRoutePick = content.SkipRoutePick
-	}
-
 	routingLink := routing_session.AsRoutingContext(ctx)
 	inTag := routingLink.GetInboundTag()
 	isPickRoute := false
-	if d.router != nil && !skipRoutePick {
+	if d.router != nil {
 		if route, err := d.router.PickRoute(routingLink); err == nil {
 			outTag := route.GetOutboundTag()
 			isPickRoute = true

app/dns/config.go

@@ -0,0 +1,64 @@
+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/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,
+}
+
+// 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 localTLDsAndDotlessDomainsRule = &NameServer_OriginalRule{
+	Rule: "geosite:private",
+	Size: uint32(len(localTLDsAndDotlessDomains)),
+}
+
+func toStrMatcher(t dm.MatchingType, domain string) (str.Matcher, error) {
+	strMType, f := typeMap[t]
+	if !f {
+		return nil, newError("unknown mapping type", t).AtWarning()
+	}
+	matcher, err := strMType.New(domain)
+	if err != nil {
+		return nil, newError("failed to create str matcher").Base(err)
+	}
+	return matcher, nil
+}
+
+func toNetIP(addrs []net.Address) ([]net.IP, error) {
+	ips := make([]net.IP, 0, len(addrs))
+	for _, addr := range addrs {
+		if addr.Family().IsIP() {
+			ips = append(ips, addr.IP())
+		} else {
+			return nil, newError("Failed to convert address", addr, "to Net IP.").AtWarning()
+		}
+	}
+	return ips, nil
+}
+
+func generateRandomTag() string {
+	id := uuid.New()
+	return "xray.system." + id.String()
+}

app/dns/config.pb.go

@@ -1,14 +1,14 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
-// 	protoc        v3.14.0
+// 	protoc-gen-go v1.26.0
+// 	protoc        v3.15.8
 // source: app/dns/config.proto
 
 package dns
 
 import (
-	proto "github.com/golang/protobuf/proto"
-	router "github.com/xtls/xray-core/app/router"
+	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"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -23,71 +23,115 @@ 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 DomainMatchingType int32
+type QueryStrategy int32
 
 const (
-	DomainMatchingType_Full      DomainMatchingType = 0
-	DomainMatchingType_Subdomain DomainMatchingType = 1
-	DomainMatchingType_Keyword   DomainMatchingType = 2
-	DomainMatchingType_Regex     DomainMatchingType = 3
+	QueryStrategy_USE_IP  QueryStrategy = 0
+	QueryStrategy_USE_IP4 QueryStrategy = 1
+	QueryStrategy_USE_IP6 QueryStrategy = 2
 )
 
-// Enum value maps for DomainMatchingType.
+// Enum value maps for QueryStrategy.
 var (
-	DomainMatchingType_name = map[int32]string{
-		0: "Full",
-		1: "Subdomain",
-		2: "Keyword",
-		3: "Regex",
+	QueryStrategy_name = map[int32]string{
+		0: "USE_IP",
+		1: "USE_IP4",
+		2: "USE_IP6",
 	}
-	DomainMatchingType_value = map[string]int32{
-		"Full":      0,
-		"Subdomain": 1,
-		"Keyword":   2,
-		"Regex":     3,
+	QueryStrategy_value = map[string]int32{
+		"USE_IP":  0,
+		"USE_IP4": 1,
+		"USE_IP6": 2,
 	}
 )
 
-func (x DomainMatchingType) Enum() *DomainMatchingType {
-	p := new(DomainMatchingType)
+func (x QueryStrategy) Enum() *QueryStrategy {
+	p := new(QueryStrategy)
 	*p = x
 	return p
 }
 
-func (x DomainMatchingType) String() string {
+func (x QueryStrategy) String() string {
 	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
 }
 
-func (DomainMatchingType) Descriptor() protoreflect.EnumDescriptor {
+func (QueryStrategy) Descriptor() protoreflect.EnumDescriptor {
 	return file_app_dns_config_proto_enumTypes[0].Descriptor()
 }
 
-func (DomainMatchingType) Type() protoreflect.EnumType {
+func (QueryStrategy) Type() protoreflect.EnumType {
 	return &file_app_dns_config_proto_enumTypes[0]
 }
 
-func (x DomainMatchingType) Number() protoreflect.EnumNumber {
+func (x QueryStrategy) Number() protoreflect.EnumNumber {
 	return protoreflect.EnumNumber(x)
 }
 
-// Deprecated: Use DomainMatchingType.Descriptor instead.
-func (DomainMatchingType) EnumDescriptor() ([]byte, []int) {
+// 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}
+}
+
 type NameServer struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Address           *net.Endpoint                `protobuf:"bytes,1,opt,name=address,proto3" json:"address,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"`
+	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"`
 }
 
 func (x *NameServer) Reset() {
@@ -129,14 +173,28 @@ func (x *NameServer) GetAddress() *net.Endpoint {
 	return nil
 }
 
-func (x *NameServer) GetPrioritizedDomain() []*NameServer_PriorityDomain {
+func (x *NameServer) GetClientIp() []byte {
+	if x != nil {
+		return x.ClientIp
+	}
+	return nil
+}
+
+func (x *NameServer) GetSkipFallback() bool {
+	if x != nil {
+		return x.SkipFallback
+	}
+	return false
+}
+
+func (x *NameServer) GetPrioritizedDomain() []*domain.Domain {
 	if x != nil {
 		return x.PrioritizedDomain
 	}
 	return nil
 }
 
-func (x *NameServer) GetGeoip() []*router.GeoIP {
+func (x *NameServer) GetGeoip() []*geoip.GeoIP {
 	if x != nil {
 		return x.Geoip
 	}
@@ -174,6 +232,10 @@ type Config struct {
 	StaticHosts []*Config_HostMapping `protobuf:"bytes,4,rep,name=static_hosts,json=staticHosts,proto3" json:"static_hosts,omitempty"`
 	// 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"`
 }
 
 func (x *Config) Reset() {
@@ -252,59 +314,25 @@ func (x *Config) GetTag() string {
 	return ""
 }
 
-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 {
+func (x *Config) GetCacheStrategy() CacheStrategy {
 	if x != nil {
-		return x.Type
+		return x.CacheStrategy
 	}
-	return DomainMatchingType_Full
+	return CacheStrategy_Cache_ALL
 }
 
-func (x *NameServer_PriorityDomain) GetDomain() string {
+func (x *Config) GetQueryStrategy() QueryStrategy {
 	if x != nil {
-		return x.Domain
+		return x.QueryStrategy
 	}
-	return ""
+	return QueryStrategy_USE_IP
+}
+
+func (x *Config) GetDisableFallback() bool {
+	if x != nil {
+		return x.DisableFallback
+	}
+	return false
 }
 
 type NameServer_OriginalRule struct {
@@ -319,7 +347,7 @@ type NameServer_OriginalRule struct {
 func (x *NameServer_OriginalRule) Reset() {
 	*x = NameServer_OriginalRule{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_app_dns_config_proto_msgTypes[3]
+		mi := &file_app_dns_config_proto_msgTypes[2]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -332,7 +360,7 @@ func (x *NameServer_OriginalRule) String() string {
 func (*NameServer_OriginalRule) ProtoMessage() {}
 
 func (x *NameServer_OriginalRule) ProtoReflect() protoreflect.Message {
-	mi := &file_app_dns_config_proto_msgTypes[3]
+	mi := &file_app_dns_config_proto_msgTypes[2]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -345,7 +373,7 @@ 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, 1}
+	return file_app_dns_config_proto_rawDescGZIP(), []int{0, 0}
 }
 
 func (x *NameServer_OriginalRule) GetRule() string {
@@ -367,19 +395,18 @@ type Config_HostMapping struct {
 	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"`
-	Ip     [][]byte           `protobuf:"bytes,3,rep,name=ip,proto3" json:"ip,omitempty"`
+	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"`
 	// ProxiedDomain indicates the mapped domain has the same IP address on this
-	// domain. Xray will use this domain for IP queries. This field is only
-	// effective if ip is empty.
+	// 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"`
 }
 
 func (x *Config_HostMapping) Reset() {
 	*x = Config_HostMapping{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_app_dns_config_proto_msgTypes[5]
+		mi := &file_app_dns_config_proto_msgTypes[4]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -392,7 +419,7 @@ func (x *Config_HostMapping) String() string {
 func (*Config_HostMapping) ProtoMessage() {}
 
 func (x *Config_HostMapping) ProtoReflect() protoreflect.Message {
-	mi := &file_app_dns_config_proto_msgTypes[5]
+	mi := &file_app_dns_config_proto_msgTypes[4]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -408,11 +435,11 @@ func (*Config_HostMapping) Descriptor() ([]byte, []int) {
 	return file_app_dns_config_proto_rawDescGZIP(), []int{1, 1}
 }
 
-func (x *Config_HostMapping) GetType() DomainMatchingType {
+func (x *Config_HostMapping) GetType() domain.MatchingType {
 	if x != nil {
 		return x.Type
 	}
-	return DomainMatchingType_Full
+	return domain.MatchingType_Full
 }
 
 func (x *Config_HostMapping) GetDomain() string {
@@ -444,79 +471,96 @@ var file_app_dns_config_proto_rawDesc = []byte{
 	0x2e, 0x64, 0x6e, 0x73, 0x1a, 0x18, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2f, 0x6e, 0x65, 0x74,
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-	0x69, 0x6e, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x06, 0x64, 0x6f, 0x6d, 0x61, 0x69, 0x6e,
-	0x12, 0x0e, 0x0a, 0x02, 0x69, 0x70, 0x18, 0x03, 0x20, 0x03, 0x28, 0x0c, 0x52, 0x02, 0x69, 0x70,
-	0x12, 0x25, 0x0a, 0x0e, 0x70, 0x72, 0x6f, 0x78, 0x69, 0x65, 0x64, 0x5f, 0x64, 0x6f, 0x6d, 0x61,
-	0x69, 0x6e, 0x18, 0x04, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0d, 0x70, 0x72, 0x6f, 0x78, 0x69, 0x65,
-	0x64, 0x44, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x2a, 0x45, 0x0a, 0x12, 0x44, 0x6f, 0x6d, 0x61, 0x69,
-	0x6e, 0x4d, 0x61, 0x74, 0x63, 0x68, 0x69, 0x6e, 0x67, 0x54, 0x79, 0x70, 0x65, 0x12, 0x08, 0x0a,
-	0x04, 0x46, 0x75, 0x6c, 0x6c, 0x10, 0x00, 0x12, 0x0d, 0x0a, 0x09, 0x53, 0x75, 0x62, 0x64, 0x6f,
-	0x6d, 0x61, 0x69, 0x6e, 0x10, 0x01, 0x12, 0x0b, 0x0a, 0x07, 0x4b, 0x65, 0x79, 0x77, 0x6f, 0x72,
-	0x64, 0x10, 0x02, 0x12, 0x09, 0x0a, 0x05, 0x52, 0x65, 0x67, 0x65, 0x78, 0x10, 0x03, 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,
+	0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x06, 0x64, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x12, 0x0e, 0x0a,
+	0x02, 0x69, 0x70, 0x18, 0x03, 0x20, 0x03, 0x28, 0x0c, 0x52, 0x02, 0x69, 0x70, 0x12, 0x25, 0x0a,
+	0x0e, 0x70, 0x72, 0x6f, 0x78, 0x69, 0x65, 0x64, 0x5f, 0x64, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x18,
+	0x04, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0d, 0x70, 0x72, 0x6f, 0x78, 0x69, 0x65, 0x64, 0x44, 0x6f,
+	0x6d, 0x61, 0x69, 0x6e, 0x4a, 0x04, 0x08, 0x07, 0x10, 0x08, 0x2a, 0x35, 0x0a, 0x0d, 0x51, 0x75,
+	0x65, 0x72, 0x79, 0x53, 0x74, 0x72, 0x61, 0x74, 0x65, 0x67, 0x79, 0x12, 0x0a, 0x0a, 0x06, 0x55,
+	0x53, 0x45, 0x5f, 0x49, 0x50, 0x10, 0x00, 0x12, 0x0b, 0x0a, 0x07, 0x55, 0x53, 0x45, 0x5f, 0x49,
+	0x50, 0x34, 0x10, 0x01, 0x12, 0x0b, 0x0a, 0x07, 0x55, 0x53, 0x45, 0x5f, 0x49, 0x50, 0x36, 0x10,
+	0x02, 0x2a, 0x44, 0x0a, 0x0d, 0x43, 0x61, 0x63, 0x68, 0x65, 0x53, 0x74, 0x72, 0x61, 0x74, 0x65,
+	0x67, 0x79, 0x12, 0x0d, 0x0a, 0x09, 0x43, 0x61, 0x63, 0x68, 0x65, 0x5f, 0x41, 0x4c, 0x4c, 0x10,
+	0x00, 0x12, 0x11, 0x0a, 0x0d, 0x43, 0x61, 0x63, 0x68, 0x65, 0x5f, 0x4e, 0x4f, 0x45, 0x52, 0x52,
+	0x4f, 0x52, 0x10, 0x01, 0x12, 0x11, 0x0a, 0x0d, 0x43, 0x61, 0x63, 0x68, 0x65, 0x5f, 0x44, 0x49,
+	0x53, 0x41, 0x42, 0x4c, 0x45, 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 (
@@ -531,37 +575,40 @@ func file_app_dns_config_proto_rawDescGZIP() []byte {
 	return file_app_dns_config_proto_rawDescData
 }
 
-var file_app_dns_config_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
-var file_app_dns_config_proto_msgTypes = make([]protoimpl.MessageInfo, 6)
+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_goTypes = []interface{}{
-	(DomainMatchingType)(0),           // 0: xray.app.dns.DomainMatchingType
-	(*NameServer)(nil),                // 1: xray.app.dns.NameServer
-	(*Config)(nil),                    // 2: xray.app.dns.Config
-	(*NameServer_PriorityDomain)(nil), // 3: xray.app.dns.NameServer.PriorityDomain
-	(*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
-	(*router.GeoIP)(nil),              // 8: xray.app.router.GeoIP
-	(*net.IPOrDomain)(nil),            // 9: xray.common.net.IPOrDomain
+	(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
 }
 var file_app_dns_config_proto_depIdxs = []int32{
 	7,  // 0: xray.app.dns.NameServer.address:type_name -> xray.common.net.Endpoint
-	3,  // 1: xray.app.dns.NameServer.prioritized_domain:type_name -> xray.app.dns.NameServer.PriorityDomain
-	8,  // 2: xray.app.dns.NameServer.geoip:type_name -> xray.app.router.GeoIP
+	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
-	1,  // 5: xray.app.dns.Config.name_server:type_name -> xray.app.dns.NameServer
+	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
-	0,  // 8: xray.app.dns.NameServer.PriorityDomain.type:type_name -> xray.app.dns.DomainMatchingType
-	9,  // 9: xray.app.dns.Config.HostsEntry.value:type_name -> xray.common.net.IPOrDomain
-	0,  // 10: xray.app.dns.Config.HostMapping.type:type_name -> xray.app.dns.DomainMatchingType
-	11, // [11:11] is the sub-list for method output_type
-	11, // [11:11] is the sub-list for method input_type
-	11, // [11:11] is the sub-list for extension type_name
-	11, // [11:11] is the sub-list for extension extendee
-	0,  // [0:11] is the sub-list for field type_name
+	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
+	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
+	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
+	12, // [12:12] is the sub-list for extension extendee
+	0,  // [0:12] is the sub-list for field type_name
 }
 
 func init() { file_app_dns_config_proto_init() }
@@ -595,18 +642,6 @@ 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
@@ -618,7 +653,7 @@ func file_app_dns_config_proto_init() {
 				return nil
 			}
 		}
-		file_app_dns_config_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
+		file_app_dns_config_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*Config_HostMapping); i {
 			case 0:
 				return &v.state
@@ -636,8 +671,8 @@ func file_app_dns_config_proto_init() {
 		File: protoimpl.DescBuilder{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_app_dns_config_proto_rawDesc,
-			NumEnums:      1,
-			NumMessages:   6,
+			NumEnums:      2,
+			NumMessages:   5,
 			NumExtensions: 0,
 			NumServices:   0,
 		},

app/dns/config.proto

@@ -8,31 +8,34 @@ option java_multiple_files = true;
 
 import "common/net/address.proto";
 import "common/net/destination.proto";
-import "app/router/config.proto";
+import "common/matcher/domain/domain.proto";
+import "common/matcher/geoip/geoip.proto";
 
 message NameServer {
   xray.common.net.Endpoint address = 1;
-
-  message PriorityDomain {
-    DomainMatchingType type = 1;
-    string domain = 2;
-  }
+  bytes client_ip = 5;
+  bool skipFallback = 6;
 
   message OriginalRule {
     string rule = 1;
     uint32 size = 2;
   }
 
-  repeated PriorityDomain prioritized_domain = 2;
-  repeated xray.app.router.GeoIP geoip = 3;
+  repeated xray.common.matcher.domain.Domain prioritized_domain = 2;
+  repeated xray.common.matcher.geoip.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 {
@@ -53,14 +56,13 @@ message Config {
   bytes client_ip = 3;
 
   message HostMapping {
-    DomainMatchingType type = 1;
+    xray.common.matcher.domain.MatchingType type = 1;
     string domain = 2;
 
     repeated bytes ip = 3;
 
     // ProxiedDomain indicates the mapped domain has the same IP address on this
-    // domain. Xray will use this domain for IP queries. This field is only
-    // effective if ip is empty.
+    // domain. Xray will use this domain for IP queries.
     string proxied_domain = 4;
   }
 
@@ -70,4 +72,11 @@ message Config {
   string tag = 6;
 
   reserved 7;
+
+  // DisableCache disables DNS cache
+  CacheStrategy cache_strategy = 8;
+
+  QueryStrategy query_strategy = 9;
+
+  bool disableFallback = 10;
 }

app/dns/dns.go

@@ -2,3 +2,312 @@
 package dns
 
 //go:generate go run github.com/xtls/xray-core/common/errors/errorgen
+
+import (
+	"context"
+	"fmt"
+	"strings"
+	"sync"
+
+	"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/features"
+	"github.com/xtls/xray-core/features/dns"
+)
+
+// 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
+}
+
+// DomainMatcherInfo contains information attached to index returned by Server.domainMatcher
+type DomainMatcherInfo struct {
+	clientIdx     uint16
+	domainRuleIdx uint16
+}
+
+// New creates a new DNS server with given configuration.
+func New(ctx context.Context, config *Config) (*DNS, error) {
+	var tag string
+	if len(config.Tag) > 0 {
+		tag = config.Tag
+	} else {
+		tag = generateRandomTag()
+	}
+
+	var clientIP net.IP
+	switch len(config.ClientIp) {
+	case 0, net.IPv4len, net.IPv6len:
+		clientIP = net.IP(config.ClientIp)
+	default:
+		return nil, newError("unexpected client IP length ", len(config.ClientIp))
+	}
+
+	var ipOption *dns.IPOption
+	switch config.QueryStrategy {
+	case QueryStrategy_USE_IP:
+		ipOption = &dns.IPOption{
+			IPv4Enable: true,
+			IPv6Enable: true,
+			FakeEnable: false,
+		}
+	case QueryStrategy_USE_IP4:
+		ipOption = &dns.IPOption{
+			IPv4Enable: true,
+			IPv6Enable: false,
+			FakeEnable: false,
+		}
+	case QueryStrategy_USE_IP6:
+		ipOption = &dns.IPOption{
+			IPv4Enable: false,
+			IPv6Enable: true,
+			FakeEnable: false,
+		}
+	}
+
+	hosts, err := NewStaticHosts(config.StaticHosts, config.Hosts)
+	if err != nil {
+		return nil, newError("failed to create hosts").Base(err)
+	}
+
+	clients := []*Client{}
+	domainRuleCount := 0
+	for _, ns := range config.NameServer {
+		domainRuleCount += len(ns.PrioritizedDomain)
+	}
+
+	// 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{}
+
+	for _, endpoint := range config.NameServers {
+		features.PrintDeprecatedFeatureWarning("simple DNS server")
+		client, err := NewSimpleClient(ctx, endpoint, clientIP)
+		if err != nil {
+			return nil, newError("failed to create client").Base(err)
+		}
+		clients = append(clients, client)
+	}
+
+	for _, ns := range config.NameServer {
+		clientIdx := len(clients)
+		updateDomain := func(domainRule str.Matcher, originalRuleIdx int, matcherInfos []DomainMatcherInfo) error {
+			midx := domainMatcher.Add(domainRule)
+			matcherInfos[midx] = DomainMatcherInfo{
+				clientIdx:     uint16(clientIdx),
+				domainRuleIdx: uint16(originalRuleIdx),
+			}
+			return nil
+		}
+
+		myClientIP := clientIP
+		switch len(ns.ClientIp) {
+		case net.IPv4len, net.IPv6len:
+			myClientIP = net.IP(ns.ClientIp)
+		}
+		client, err := NewClient(ctx, ns, myClientIP, geoipContainer, &matcherInfos, updateDomain)
+		if err != nil {
+			return nil, newError("failed to create client").Base(err)
+		}
+		clients = append(clients, client)
+	}
+
+	// If there is no DNS client in config, add a `localhost` DNS client
+	if len(clients) == 0 {
+		clients = append(clients, NewLocalDNSClient())
+	}
+
+	return &DNS{
+		tag:             tag,
+		hosts:           hosts,
+		ipOption:        ipOption,
+		clients:         clients,
+		ctx:             ctx,
+		domainMatcher:   domainMatcher,
+		matcherInfos:    matcherInfos,
+		cacheStrategy:   config.CacheStrategy,
+		disableFallback: config.DisableFallback,
+	}, nil
+}
+
+// Type implements common.HasType.
+func (*DNS) Type() interface{} {
+	return dns.ClientType()
+}
+
+// Start implements common.Runnable.
+func (s *DNS) Start() error {
+	return nil
+}
+
+// Close implements common.Closable.
+func (s *DNS) Close() error {
+	return nil
+}
+
+// IsOwnLink implements proxy.dns.ownLinkVerifier
+func (s *DNS) IsOwnLink(ctx context.Context) bool {
+	inbound := session.InboundFromContext(ctx)
+	return inbound != nil && inbound.Tag == s.tag
+}
+
+// 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) {
+	if domain == "" {
+		return nil, newError("empty domain name")
+	}
+	if isQuery(option) {
+		return nil, newError("empty option: Impossible.").AtWarning()
+	}
+
+	// Normalize the FQDN form query
+	if strings.HasSuffix(domain, ".") {
+		domain = domain[:len(domain)-1]
+	}
+
+	// Static host lookup
+	switch addrs := s.hosts.Lookup(domain, option); {
+	case addrs == nil: // Domain not recorded in static host
+		break
+	case len(addrs) == 0: // Domain recorded, but no valid IP returned (e.g. IPv4 address with only IPv6 enabled)
+		return nil, dns.ErrEmptyResponse
+	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)
+		}
+	}
+
+	// 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)
+		if len(ips) > 0 {
+			return ips, nil
+		}
+		if err != nil {
+			newError("failed to lookup ip for domain ", domain, " at server ", client.Name()).Base(err).WriteToLog()
+			errs = append(errs, err)
+		}
+		if err != context.Canceled && err != context.DeadlineExceeded && err != errExpectedIPNonMatch {
+			return nil, err
+		}
+	}
+
+	return nil, newError("returning nil for domain ", domain).Base(errors.Combine(errs...))
+}
+
+func (s *DNS) sortClients(domain string, option *dns.IPOption) []*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
+	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
+		}
+		clientUsed[info.clientIdx] = true
+		clients = append(clients, client)
+		clientNames = append(clientNames, client.Name())
+	}
+
+	if !s.disableFallback {
+		// 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())
+		}
+	}
+
+	return clients
+}
+
+func init() {
+	common.Must(common.RegisterConfig((*Config)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
+		return New(ctx, config.(*Config))
+	}))
+}

app/dns/dns_test.go

@@ -12,8 +12,9 @@ import (
 	"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"
@@ -101,8 +102,8 @@ func (*staticHandler) ServeDNS(w dns.ResponseWriter, r *dns.Msg) {
 			rr, _ := dns.NewRR("localhost-b. IN A 127.0.0.4")
 			ans.Answer = append(ans.Answer, rr)
 
-		case q.Name == "mijia\\ cloud." && q.Qtype == dns.TypeA:
-			rr, _ := dns.NewRR("mijia\\ cloud. IN A 127.0.0.1")
+		case q.Name == "Mijia\\ Cloud." && q.Qtype == dns.TypeA:
+			rr, _ := dns.NewRR("Mijia\\ Cloud. IN A 127.0.0.1")
 			ans.Answer = append(ans.Answer, rr)
 		}
 	}
@@ -154,11 +155,7 @@ func TestUDPServerSubnet(t *testing.T) {
 
 	client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)
 
-	ips, err := client.LookupIP("google.com", feature_dns.IPOption{
-		IPv4Enable: true,
-		IPv6Enable: true,
-		FakeEnable: false,
-	})
+	ips, err := client.LookupIP("google.com")
 	if err != nil {
 		t.Fatal("unexpected error: ", err)
 	}
@@ -213,11 +210,7 @@ func TestUDPServer(t *testing.T) {
 	client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)
 
 	{
-		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("google.com")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -228,11 +221,7 @@ func TestUDPServer(t *testing.T) {
 	}
 
 	{
-		ips, err := client.LookupIP("facebook.com", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("facebook.com")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -243,11 +232,7 @@ func TestUDPServer(t *testing.T) {
 	}
 
 	{
-		_, err := client.LookupIP("notexist.google.com", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		_, err := client.LookupIP("notexist.google.com")
 		if err == nil {
 			t.Fatal("nil error")
 		}
@@ -257,11 +242,8 @@ func TestUDPServer(t *testing.T) {
 	}
 
 	{
-		ips, err := client.LookupIP("ipv4only.google.com", feature_dns.IPOption{
-			IPv4Enable: false,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		clientv6 := client.(feature_dns.IPv6Lookup)
+		ips, err := clientv6.LookupIPv6("ipv4only.google.com")
 		if err != feature_dns.ErrEmptyResponse {
 			t.Fatal("error: ", err)
 		}
@@ -273,11 +255,7 @@ func TestUDPServer(t *testing.T) {
 	dnsServer.Shutdown()
 
 	{
-		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("google.com")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -326,10 +304,10 @@ func TestPrioritizedDomain(t *testing.T) {
 							},
 							Port: uint32(port),
 						},
-						PrioritizedDomain: []*NameServer_PriorityDomain{
+						PrioritizedDomain: []*domain.Domain{
 							{
-								Type:   DomainMatchingType_Full,
-								Domain: "google.com",
+								Type:  domain.MatchingType_Full,
+								Value: "google.com",
 							},
 						},
 					},
@@ -354,11 +332,7 @@ func TestPrioritizedDomain(t *testing.T) {
 	startTime := time.Now()
 
 	{
-		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("google.com")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -417,12 +391,9 @@ func TestUDPServerIPv6(t *testing.T) {
 	common.Must(err)
 
 	client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)
+	client6 := client.(feature_dns.IPv6Lookup)
 	{
-		ips, err := client.LookupIP("ipv6.google.com", feature_dns.IPOption{
-			IPv4Enable: false,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client6.LookupIPv6("ipv6.google.com")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -462,7 +433,7 @@ func TestStaticHostDomain(t *testing.T) {
 				},
 				StaticHosts: []*Config_HostMapping{
 					{
-						Type:          DomainMatchingType_Full,
+						Type:          domain.MatchingType_Full,
 						Domain:        "example.com",
 						ProxiedDomain: "google.com",
 					},
@@ -485,11 +456,7 @@ func TestStaticHostDomain(t *testing.T) {
 	client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)
 
 	{
-		ips, err := client.LookupIP("example.com", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("example.com")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -530,10 +497,10 @@ func TestIPMatch(t *testing.T) {
 							},
 							Port: uint32(port),
 						},
-						Geoip: []*router.GeoIP{
+						Geoip: []*geoip.GeoIP{
 							{
 								CountryCode: "local",
-								Cidr: []*router.CIDR{
+								Cidr: []*geoip.CIDR{
 									{
 										// inner ip, will not match
 										Ip:     []byte{192, 168, 11, 1},
@@ -554,10 +521,10 @@ func TestIPMatch(t *testing.T) {
 							},
 							Port: uint32(port),
 						},
-						Geoip: []*router.GeoIP{
+						Geoip: []*geoip.GeoIP{
 							{
 								CountryCode: "test",
-								Cidr: []*router.CIDR{
+								Cidr: []*geoip.CIDR{
 									{
 										Ip:     []byte{8, 8, 8, 8},
 										Prefix: 32,
@@ -566,7 +533,7 @@ func TestIPMatch(t *testing.T) {
 							},
 							{
 								CountryCode: "test",
-								Cidr: []*router.CIDR{
+								Cidr: []*geoip.CIDR{
 									{
 										Ip:     []byte{8, 8, 8, 4},
 										Prefix: 32,
@@ -596,11 +563,7 @@ func TestIPMatch(t *testing.T) {
 	startTime := time.Now()
 
 	{
-		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("google.com")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -654,14 +617,14 @@ func TestLocalDomain(t *testing.T) {
 							},
 							Port: uint32(port),
 						},
-						PrioritizedDomain: []*NameServer_PriorityDomain{
+						PrioritizedDomain: []*domain.Domain{
 							// Equivalent of dotless:localhost
-							{Type: DomainMatchingType_Regex, Domain: "^[^.]*localhost[^.]*$"},
+							{Type: domain.MatchingType_Regex, Value: "^[^.]*localhost[^.]*$"},
 						},
-						Geoip: []*router.GeoIP{
+						Geoip: []*geoip.GeoIP{
 							{ // Will match localhost, localhost-a and localhost-b,
 								CountryCode: "local",
-								Cidr: []*router.CIDR{
+								Cidr: []*geoip.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},
@@ -679,22 +642,22 @@ func TestLocalDomain(t *testing.T) {
 							},
 							Port: uint32(port),
 						},
-						PrioritizedDomain: []*NameServer_PriorityDomain{
+						PrioritizedDomain: []*domain.Domain{
 							// Equivalent of dotless: and domain:local
-							{Type: DomainMatchingType_Regex, Domain: "^[^.]*$"},
-							{Type: DomainMatchingType_Subdomain, Domain: "local"},
-							{Type: DomainMatchingType_Subdomain, Domain: "localdomain"},
+							{Type: domain.MatchingType_Regex, Value: "^[^.]*$"},
+							{Type: domain.MatchingType_Subdomain, Value: "local"},
+							{Type: domain.MatchingType_Subdomain, Value: "localdomain"},
 						},
 					},
 				},
 				StaticHosts: []*Config_HostMapping{
 					{
-						Type:   DomainMatchingType_Full,
+						Type:   domain.MatchingType_Full,
 						Domain: "hostnamestatic",
 						Ip:     [][]byte{{127, 0, 0, 53}},
 					},
 					{
-						Type:          DomainMatchingType_Full,
+						Type:          domain.MatchingType_Full,
 						Domain:        "hostnamealias",
 						ProxiedDomain: "hostname.localdomain",
 					},
@@ -719,11 +682,7 @@ func TestLocalDomain(t *testing.T) {
 	startTime := time.Now()
 
 	{ // Will match dotless:
-		ips, err := client.LookupIP("hostname", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("hostname")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -734,11 +693,7 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match domain:local
-		ips, err := client.LookupIP("hostname.local", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("hostname.local")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -749,11 +704,7 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match static ip
-		ips, err := client.LookupIP("hostnamestatic", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("hostnamestatic")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -764,11 +715,7 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match domain replacing
-		ips, err := client.LookupIP("hostnamealias", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("hostnamealias")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -779,11 +726,7 @@ 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", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("localhost")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -794,11 +737,7 @@ 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", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("localhost-a")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -809,11 +748,7 @@ 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", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("localhost-b")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -824,11 +759,7 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match dotless:
-		ips, err := client.LookupIP("Mijia Cloud", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("Mijia Cloud")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -882,15 +813,15 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 							},
 							Port: uint32(port),
 						},
-						PrioritizedDomain: []*NameServer_PriorityDomain{
+						PrioritizedDomain: []*domain.Domain{
 							{
-								Type:   DomainMatchingType_Subdomain,
-								Domain: "google.com",
+								Type:  domain.MatchingType_Subdomain,
+								Value: "google.com",
 							},
 						},
-						Geoip: []*router.GeoIP{
+						Geoip: []*geoip.GeoIP{
 							{ // Will only match 8.8.8.8 and 8.8.4.4
-								Cidr: []*router.CIDR{
+								Cidr: []*geoip.CIDR{
 									{Ip: []byte{8, 8, 8, 8}, Prefix: 32},
 									{Ip: []byte{8, 8, 4, 4}, Prefix: 32},
 								},
@@ -907,15 +838,15 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 							},
 							Port: uint32(port),
 						},
-						PrioritizedDomain: []*NameServer_PriorityDomain{
+						PrioritizedDomain: []*domain.Domain{
 							{
-								Type:   DomainMatchingType_Subdomain,
-								Domain: "google.com",
+								Type:  domain.MatchingType_Subdomain,
+								Value: "google.com",
 							},
 						},
-						Geoip: []*router.GeoIP{
+						Geoip: []*geoip.GeoIP{
 							{ // Will match 8.8.8.8 and 8.8.8.7, etc
-								Cidr: []*router.CIDR{
+								Cidr: []*geoip.CIDR{
 									{Ip: []byte{8, 8, 8, 7}, Prefix: 24},
 								},
 							},
@@ -931,15 +862,15 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 							},
 							Port: uint32(port),
 						},
-						PrioritizedDomain: []*NameServer_PriorityDomain{
+						PrioritizedDomain: []*domain.Domain{
 							{
-								Type:   DomainMatchingType_Subdomain,
-								Domain: "api.google.com",
+								Type:  domain.MatchingType_Subdomain,
+								Value: "api.google.com",
 							},
 						},
-						Geoip: []*router.GeoIP{
+						Geoip: []*geoip.GeoIP{
 							{ // Will only match 8.8.7.7 (api.google.com)
-								Cidr: []*router.CIDR{
+								Cidr: []*geoip.CIDR{
 									{Ip: []byte{8, 8, 7, 7}, Prefix: 32},
 								},
 							},
@@ -955,15 +886,15 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 							},
 							Port: uint32(port),
 						},
-						PrioritizedDomain: []*NameServer_PriorityDomain{
+						PrioritizedDomain: []*domain.Domain{
 							{
-								Type:   DomainMatchingType_Full,
-								Domain: "v2.api.google.com",
+								Type:  domain.MatchingType_Full,
+								Value: "v2.api.google.com",
 							},
 						},
-						Geoip: []*router.GeoIP{
+						Geoip: []*geoip.GeoIP{
 							{ // Will only match 8.8.7.8 (v2.api.google.com)
-								Cidr: []*router.CIDR{
+								Cidr: []*geoip.CIDR{
 									{Ip: []byte{8, 8, 7, 8}, Prefix: 32},
 								},
 							},
@@ -990,11 +921,7 @@ 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", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("google.com")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -1005,11 +932,8 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 	}
 
 	{ // Will match server 1,2 and server 1 returns unexpected ip, then server 2 returns expected one
-		ips, err := client.LookupIP("ipv6.google.com", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: false,
-			FakeEnable: false,
-		})
+		clientv4 := client.(feature_dns.IPv4Lookup)
+		ips, err := clientv4.LookupIPv4("ipv6.google.com")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -1020,11 +944,7 @@ func TestMultiMatchPrioritizedDomain(t *testing.T) {
 	}
 
 	{ // Will match server 3,1,2 and server 3 returns expected one
-		ips, err := client.LookupIP("api.google.com", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("api.google.com")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -1035,11 +955,7 @@ 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", feature_dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := client.LookupIP("v2.api.google.com")
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}

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"
 )
@@ -11,31 +11,12 @@ import (
 // StaticHosts represents static domain-ip mapping in DNS server.
 type StaticHosts struct {
 	ips      [][]net.Address
-	matchers *strmatcher.MatcherGroup
-}
-
-var typeMap = map[DomainMatchingType]strmatcher.Type{
-	DomainMatchingType_Full:      strmatcher.Full,
-	DomainMatchingType_Subdomain: strmatcher.Domain,
-	DomainMatchingType_Keyword:   strmatcher.Substr,
-	DomainMatchingType_Regex:     strmatcher.Regex,
-}
-
-func toStrMatcher(t DomainMatchingType, domain string) (strmatcher.Matcher, error) {
-	strMType, f := typeMap[t]
-	if !f {
-		return nil, newError("unknown mapping type", t).AtWarning()
-	}
-	matcher, err := strMType.New(domain)
-	if err != nil {
-		return nil, newError("failed to create str matcher").Base(err)
-	}
-	return matcher, nil
+	matchers *str.MatcherGroup
 }
 
 // NewStaticHosts creates a new StaticHosts instance.
 func NewStaticHosts(hosts []*Config_HostMapping, legacy map[string]*net.IPOrDomain) (*StaticHosts, error) {
-	g := new(strmatcher.MatcherGroup)
+	g := new(str.MatcherGroup)
 	sh := &StaticHosts{
 		ips:      make([][]net.Address, len(hosts)+len(legacy)+16),
 		matchers: g,
@@ -45,7 +26,7 @@ func NewStaticHosts(hosts []*Config_HostMapping, legacy map[string]*net.IPOrDoma
 		features.PrintDeprecatedFeatureWarning("simple host mapping")
 
 		for domain, ip := range legacy {
-			matcher, err := strmatcher.Full.New(domain)
+			matcher, err := str.Full.New(domain)
 			common.Must(err)
 			id := g.Add(matcher)
 
@@ -66,6 +47,9 @@ func NewStaticHosts(hosts []*Config_HostMapping, legacy map[string]*net.IPOrDoma
 		id := g.Add(matcher)
 		ips := make([]net.Address, 0, len(mapping.Ip)+1)
 		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)
@@ -75,49 +59,56 @@ func NewStaticHosts(hosts []*Config_HostMapping, legacy map[string]*net.IPOrDoma
 				ips = append(ips, addr)
 			}
 
-		case len(mapping.ProxiedDomain) > 0:
-			ips = append(ips, net.DomainAddress(mapping.ProxiedDomain))
-
 		default:
 			return nil, newError("neither IP address nor proxied domain specified for domain: ", mapping.Domain).AtWarning()
 		}
 
-		// Special handling for localhost IPv6. This is a dirty workaround as JSON config supports only single IP mapping.
-		if len(ips) == 1 && ips[0] == net.LocalHostIP {
-			ips = append(ips, net.LocalHostIPv6)
-		}
-
 		sh.ips[id] = ips
 	}
 
 	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) {
 			filtered = append(filtered, ip)
 		}
 	}
-	if len(filtered) == 0 {
-		return nil
-	}
 	return filtered
 }
 
-// LookupIP returns IP address for the given domain, if exists in this StaticHosts.
-func (h *StaticHosts) LookupIP(domain string, option dns.IPOption) []net.Address {
-	indices := h.matchers.Match(domain)
-	if len(indices) == 0 {
-		return nil
-	}
-	ips := []net.Address{}
-	for _, id := range indices {
+func (h *StaticHosts) lookupInternal(domain string) []net.Address {
+	var ips []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 filterIP(ips, option)
+	return ips
+}
+
+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
+	case len(addrs) == 1 && addrs[0].Family().IsDomain(): // Try to unwrap domain
+		newError("found replaced domain: ", domain, " -> ", addrs[0].Domain(), ". Try to unwrap it").AtDebug().WriteToLog()
+		if maxDepth > 0 {
+			unwrapped := h.lookup(addrs[0].Domain(), option, maxDepth-1)
+			if unwrapped != nil {
+				return unwrapped
+			}
+		}
+		return addrs
+	default: // IP record found, return a non-nil IP array
+		return filterIP(addrs, option)
+	}
+}
+
+// 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 {
+	return h.lookup(domain, option, 5)
 }

app/dns/hosts_test.go

@@ -7,6 +7,7 @@ import (
 
 	. "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"
 )
@@ -14,24 +15,39 @@ import (
 func TestStaticHosts(t *testing.T) {
 	pb := []*Config_HostMapping{
 		{
-			Type:   DomainMatchingType_Full,
+			Type:   domain.MatchingType_Full,
 			Domain: "example.com",
 			Ip: [][]byte{
 				{1, 1, 1, 1},
 			},
 		},
 		{
-			Type:   DomainMatchingType_Subdomain,
+			Type:   domain.MatchingType_Full,
+			Domain: "proxy.example.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",
+		},
+		{
+			Type:          domain.MatchingType_Full,
+			Domain:        "proxy2.example.com",
+			ProxiedDomain: "proxy.example.com",
+		},
+		{
+			Type:   domain.MatchingType_Subdomain,
 			Domain: "example.cn",
 			Ip: [][]byte{
 				{2, 2, 2, 2},
 			},
 		},
 		{
-			Type:   DomainMatchingType_Subdomain,
+			Type:   domain.MatchingType_Subdomain,
 			Domain: "baidu.com",
 			Ip: [][]byte{
 				{127, 0, 0, 1},
+				{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1},
 			},
 		},
 	}
@@ -40,7 +56,7 @@ func TestStaticHosts(t *testing.T) {
 	common.Must(err)
 
 	{
-		ips := hosts.LookupIP("example.com", dns.IPOption{
+		ips := hosts.Lookup("example.com", &dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 		})
@@ -53,7 +69,33 @@ func TestStaticHosts(t *testing.T) {
 	}
 
 	{
-		ips := hosts.LookupIP("www.example.cn", dns.IPOption{
+		domain := hosts.Lookup("proxy.example.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 != "" {
+			t.Error(diff)
+		}
+	}
+
+	{
+		domain := hosts.Lookup("proxy2.example.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 != "" {
+			t.Error(diff)
+		}
+	}
+
+	{
+		ips := hosts.Lookup("www.example.cn", &dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
 		})
@@ -66,7 +108,7 @@ func TestStaticHosts(t *testing.T) {
 	}
 
 	{
-		ips := hosts.LookupIP("baidu.com", dns.IPOption{
+		ips := hosts.Lookup("baidu.com", &dns.IPOption{
 			IPv4Enable: false,
 			IPv6Enable: true,
 		})

app/dns/nameserver.go

@@ -2,40 +2,211 @@ package dns
 
 import (
 	"context"
+	"net/url"
+	"strings"
+	"time"
 
+	"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/features/dns"
-	"github.com/xtls/xray-core/features/dns/localdns"
+	"github.com/xtls/xray-core/features/routing"
 )
 
-// Client is the interface for DNS client.
-type Client interface {
+// Server is the interface for Name Server.
+type Server interface {
 	// Name of the Client.
 	Name() string
-
 	// QueryIP sends IP queries to its configured server.
-	QueryIP(ctx context.Context, domain string, option dns.IPOption) ([]net.IP, error)
+	QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns.IPOption, cs CacheStrategy) ([]net.IP, error)
 }
 
-type LocalNameServer struct {
-	client *localdns.Client
+// Client is the interface for DNS client.
+type Client struct {
+	server       Server
+	clientIP     net.IP
+	skipFallback bool
+	domains      []string
+	expectIPs    []*geoip.GeoIPMatcher
 }
 
-func (s *LocalNameServer) QueryIP(_ context.Context, domain string, option dns.IPOption) ([]net.IP, error) {
-	if option.IPv4Enable || option.IPv6Enable {
-		return s.client.LookupIP(domain, option)
+var errExpectedIPNonMatch = errors.New("expectIPs not match")
+
+// NewServer creates a name server object according to the network destination url.
+func NewServer(dest net.Destination, dispatcher routing.Dispatcher) (Server, error) {
+	if address := dest.Address; address.Family().IsDomain() {
+		u, err := url.Parse(address.Domain())
+		if err != nil {
+			return nil, err
+		}
+		switch {
+		case strings.EqualFold(u.String(), "localhost"):
+			return NewLocalNameServer(), nil
+		case strings.EqualFold(u.Scheme, "https"): // DOH Remote mode
+			return NewDoHNameServer(u, dispatcher)
+		case strings.EqualFold(u.Scheme, "https+local"): // DOH Local mode
+			return NewDoHLocalNameServer(u), nil
+		case strings.EqualFold(u.Scheme, "quic+local"): // DNS-over-QUIC Local mode
+			return NewQUICNameServer(u)
+		case strings.EqualFold(u.String(), "fakedns"):
+			return NewFakeDNSServer(), nil
+		}
+	}
+	if dest.Network == net.Network_Unknown {
+		dest.Network = net.Network_UDP
+	}
+	if dest.Network == net.Network_UDP { // UDP classic DNS mode
+		return NewClassicNameServer(dest, dispatcher), nil
+	}
+	return nil, newError("No available name server could be created from ", dest).AtWarning()
+}
+
+// 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) {
+	client := &Client{}
+
+	err := core.RequireFeatures(ctx, func(dispatcher routing.Dispatcher) error {
+		// Create a new server for each client for now
+		server, err := NewServer(ns.Address.AsDestination(), dispatcher)
+		if err != nil {
+			return newError("failed to create nameserver").Base(err).AtWarning()
+		}
+
+		// Priotize local domains with specific TLDs or without any dot to local DNS
+		if _, isLocalDNS := server.(*LocalNameServer); isLocalDNS {
+			ns.PrioritizedDomain = append(ns.PrioritizedDomain, localTLDsAndDotlessDomains...)
+			ns.OriginalRules = append(ns.OriginalRules, localTLDsAndDotlessDomainsRule)
+			// The following lines is a solution to avoid core panics（rule index out of range） when setting `localhost` DNS client in config.
+			// 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.
+			for i := 0; i < len(localTLDsAndDotlessDomains); i++ {
+				*matcherInfos = append(*matcherInfos, DomainMatcherInfo{
+					clientIdx:     uint16(0),
+					domainRuleIdx: uint16(0),
+				})
+			}
+		}
+
+		// Establish domain rules
+		var rules []string
+		ruleCurr := 0
+		ruleIter := 0
+		for _, domain := range ns.PrioritizedDomain {
+			domainRule, err := toStrMatcher(domain.Type, domain.Value)
+			if err != nil {
+				return newError("failed to create prioritized domain").Base(err).AtWarning()
+			}
+			originalRuleIdx := ruleCurr
+			if ruleCurr < len(ns.OriginalRules) {
+				rule := ns.OriginalRules[ruleCurr]
+				if ruleCurr >= len(rules) {
+					rules = append(rules, rule.Rule)
+				}
+				ruleIter++
+				if ruleIter >= int(rule.Size) {
+					ruleIter = 0
+					ruleCurr++
+				}
+			} else { // No original rule, generate one according to current domain matcher (majorly for compatibility with tests)
+				rules = append(rules, domainRule.String())
+				ruleCurr++
+			}
+			err = updateDomainRule(domainRule, originalRuleIdx, *matcherInfos)
+			if err != nil {
+				return newError("failed to create prioritized domain").Base(err).AtWarning()
+			}
+		}
+
+		// Establish expected IPs
+		var matchers []*geoip.GeoIPMatcher
+		for _, geoip := range ns.Geoip {
+			matcher, err := container.Add(geoip)
+			if err != nil {
+				return newError("failed to create ip matcher").Base(err).AtWarning()
+			}
+			matchers = append(matchers, matcher)
+		}
+
+		if len(clientIP) > 0 {
+			switch ns.Address.Address.GetAddress().(type) {
+			case *net.IPOrDomain_Domain:
+				newError("DNS: client ", ns.Address.Address.GetDomain(), " uses clientIP ", clientIP.String()).AtInfo().WriteToLog()
+			case *net.IPOrDomain_Ip:
+				newError("DNS: client ", ns.Address.Address.GetIp(), " uses clientIP ", clientIP.String()).AtInfo().WriteToLog()
+			}
+		}
+
+		client.server = server
+		client.clientIP = clientIP
+		client.domains = rules
+		client.expectIPs = matchers
+		return nil
+	})
+	return client, err
+}
+
+// NewSimpleClient creates a DNS client with a simple destination.
+func NewSimpleClient(ctx context.Context, endpoint *net.Endpoint, clientIP net.IP) (*Client, error) {
+	client := &Client{}
+	err := core.RequireFeatures(ctx, func(dispatcher routing.Dispatcher) error {
+		server, err := NewServer(endpoint.AsDestination(), dispatcher)
+		if err != nil {
+			return newError("failed to create nameserver").Base(err).AtWarning()
+		}
+		client.server = server
+		client.clientIP = clientIP
+		return nil
+	})
+
+	if len(clientIP) > 0 {
+		switch endpoint.Address.GetAddress().(type) {
+		case *net.IPOrDomain_Domain:
+			newError("DNS: client ", endpoint.Address.GetDomain(), " uses clientIP ", clientIP.String()).AtInfo().WriteToLog()
+		case *net.IPOrDomain_Ip:
+			newError("DNS: client ", endpoint.Address.GetIp(), " uses clientIP ", clientIP.String()).AtInfo().WriteToLog()
+		}
 	}
 
-	return nil, newError("neither IPv4 nor IPv6 is enabled")
+	return client, err
 }
 
-func (s *LocalNameServer) Name() string {
-	return "localhost"
+// Name returns the server name the client manages.
+func (c *Client) Name() string {
+	return c.server.Name()
 }
 
-func NewLocalNameServer() *LocalNameServer {
-	newError("DNS: created localhost client").AtInfo().WriteToLog()
-	return &LocalNameServer{
-		client: localdns.New(),
+// 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) {
+	ctx, cancel := context.WithTimeout(ctx, 4*time.Second)
+	ips, err := c.server.QueryIP(ctx, domain, c.clientIP, option, cs)
+	cancel()
+
+	if err != nil {
+		return ips, err
 	}
+	return c.MatchExpectedIPs(domain, ips)
+}
+
+// MatchExpectedIPs matches queried domain IPs with expected IPs and returns matched ones.
+func (c *Client) MatchExpectedIPs(domain string, ips []net.IP) ([]net.IP, error) {
+	if len(c.expectIPs) == 0 {
+		return ips, nil
+	}
+	newIps := []net.IP{}
+	for _, ip := range ips {
+		for _, matcher := range c.expectIPs {
+			if matcher.Match(ip) {
+				newIps = append(newIps, ip)
+				break
+			}
+		}
+	}
+	if len(newIps) == 0 {
+		return nil, errExpectedIPNonMatch
+	}
+	newError("domain ", domain, " expectIPs ", newIps, " matched at server ", c.Name()).AtDebug().WriteToLog()
+	return newIps, nil
 }

app/dns/nameserver_doh.go

@@ -42,10 +42,10 @@ type DoHNameServer struct {
 	name       string
 }
 
-// NewDoHNameServer creates DOH client object for remote resolving
-func NewDoHNameServer(url *url.URL, dispatcher routing.Dispatcher, clientIP net.IP) (*DoHNameServer, error) {
+// 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", clientIP)
+	s := baseDOHNameServer(url, "DOH")
 
 	s.dispatcher = dispatcher
 	tr := &http.Transport{
@@ -61,7 +61,8 @@ func NewDoHNameServer(url *url.URL, dispatcher routing.Dispatcher, clientIP net.
 				return nil, err
 			}
 
-			dispatcherCtx = session.ContextWithContent(dispatcherCtx, &session.Content{Protocol: "tls"})
+			dispatcherCtx = session.ContextWithContent(dispatcherCtx, session.ContentFromContext(ctx))
+			dispatcherCtx = session.ContextWithInbound(dispatcherCtx, session.InboundFromContext(ctx))
 			dispatcherCtx = log.ContextWithAccessMessage(dispatcherCtx, &log.AccessMessage{
 				From:   "DoH",
 				To:     s.dohURL,
@@ -79,6 +80,12 @@ func NewDoHNameServer(url *url.URL, dispatcher routing.Dispatcher, clientIP net.
 			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 {
@@ -103,9 +110,9 @@ func NewDoHNameServer(url *url.URL, dispatcher routing.Dispatcher, clientIP net.
 }
 
 // NewDoHLocalNameServer creates DOH client object for local resolving
-func NewDoHLocalNameServer(url *url.URL, clientIP net.IP) *DoHNameServer {
+func NewDoHLocalNameServer(url *url.URL) *DoHNameServer {
 	url.Scheme = "https"
-	s := baseDOHNameServer(url, "DOHL", clientIP)
+	s := baseDOHNameServer(url, "DOHL")
 	tr := &http.Transport{
 		IdleConnTimeout:   90 * time.Second,
 		ForceAttemptHTTP2: true,
@@ -135,13 +142,12 @@ func NewDoHLocalNameServer(url *url.URL, clientIP net.IP) *DoHNameServer {
 	return s
 }
 
-func baseDOHNameServer(url *url.URL, prefix string, clientIP net.IP) *DoHNameServer {
+func baseDOHNameServer(url *url.URL, prefix string) *DoHNameServer {
 	s := &DoHNameServer{
-		ips:      make(map[string]record),
-		clientIP: clientIP,
-		pub:      pubsub.NewService(),
-		name:     prefix + "//" + url.Host,
-		dohURL:   url.String(),
+		ips:    make(map[string]record),
+		pub:    pubsub.NewService(),
+		name:   prefix + "//" + url.Host,
+		dohURL: url.String(),
 	}
 	s.cleanup = &task.Periodic{
 		Interval: time.Minute,
@@ -151,7 +157,7 @@ func baseDOHNameServer(url *url.URL, prefix string, clientIP net.IP) *DoHNameSer
 	return s
 }
 
-// Name returns client name
+// Name implements Server.
 func (s *DoHNameServer) Name() string {
 	return s.name
 }
@@ -234,7 +240,7 @@ func (s *DoHNameServer) newReqID() uint16 {
 	return uint16(atomic.AddUint32(&s.reqID, 1))
 }
 
-func (s *DoHNameServer) sendQuery(ctx context.Context, domain string, option dns_feature.IPOption) {
+func (s *DoHNameServer) sendQuery(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption) {
 	newError(s.name, " querying: ", domain).AtInfo().WriteToLog(session.ExportIDToError(ctx))
 
 	if s.name+"." == "DOH//"+domain {
@@ -242,7 +248,7 @@ func (s *DoHNameServer) sendQuery(ctx context.Context, domain string, option dns
 		return
 	}
 
-	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(s.clientIP))
+	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(clientIP))
 
 	var deadline time.Time
 	if d, ok := ctx.Deadline(); ok {
@@ -263,8 +269,8 @@ func (s *DoHNameServer) sendQuery(ctx context.Context, domain string, option dns
 			}
 
 			dnsCtx = session.ContextWithContent(dnsCtx, &session.Content{
-				Protocol: "https",
-				//SkipRoutePick: true,
+				Protocol:       "https",
+				SkipDNSResolve: true,
 			})
 
 			// forced to use mux for DOH
@@ -348,7 +354,7 @@ func (s *DoHNameServer) findIPsForDomain(domain string, option dns_feature.IPOpt
 	}
 
 	if len(ips) > 0 {
-		return toNetIP(ips), nil
+		return toNetIP(ips)
 	}
 
 	if lastErr != nil {
@@ -362,15 +368,21 @@ func (s *DoHNameServer) findIPsForDomain(domain string, option dns_feature.IPOpt
 	return nil, errRecordNotFound
 }
 
-// QueryIP is called from dns.Server->queryIPTimeout
-func (s *DoHNameServer) QueryIP(ctx context.Context, domain string, option dns_feature.IPOption) ([]net.IP, error) { // nolint: dupl
+// 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
 	fqdn := Fqdn(domain)
 
-	ips, err := s.findIPsForDomain(fqdn, option)
-	if err != errRecordNotFound {
-		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
+	if cs == CacheStrategy_Cache_DISABLE {
+		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
+			}
+		}
 	}
 
 	// ipv4 and ipv6 belong to different subscription groups
@@ -399,7 +411,7 @@ func (s *DoHNameServer) QueryIP(ctx context.Context, domain string, option dns_f
 		}
 		close(done)
 	}()
-	s.sendQuery(ctx, fqdn, option)
+	s.sendQuery(ctx, fqdn, clientIP, option)
 	start := time.Now()
 
 	for {

app/dns/nameserver_doh_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 TestDOHNameServer(t *testing.T) {
+	url, err := url.Parse("https+local://1.1.1.1/dns-query")
+	common.Must(err)
+
+	s := NewDoHLocalNameServer(url)
+	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)
+	cancel()
+	common.Must(err)
+	if len(ips) == 0 {
+		t.Error("expect some ips, but got 0")
+	}
+}
+
+func TestDOHNameServerWithCache(t *testing.T) {
+	url, err := url.Parse("https+local://1.1.1.1/dns-query")
+	common.Must(err)
+
+	s := NewDoHLocalNameServer(url)
+	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)
+	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)
+	ips2, err := s.QueryIP(ctx2, "google.com", net.IP(nil), dns_feature.IPOption{
+		IPv4Enable: true,
+		IPv6Enable: true,
+	}, CacheStrategy_Cache_ALL)
+	cancel()
+	common.Must(err)
+	if r := cmp.Diff(ips2, ips); r != "" {
+		t.Fatal(r)
+	}
+}

app/dns/nameserver_fakedns.go

@@ -16,11 +16,13 @@ func NewFakeDNSServer() *FakeDNSServer {
 	return &FakeDNSServer{}
 }
 
+const FakeDNSName = "FakeDNS"
+
 func (FakeDNSServer) Name() string {
-	return "FakeDNS"
+	return FakeDNSName
 }
 
-func (f *FakeDNSServer) QueryIP(ctx context.Context, domain string, _ dns.IPOption) ([]net.IP, error) {
+func (f *FakeDNSServer) QueryIP(ctx context.Context, domain string, _ net.IP, _ dns.IPOption, _ CacheStrategy) ([]net.IP, error) {
 	if f.fakeDNSEngine == nil {
 		if err := core.RequireFeatures(ctx, func(fd dns.FakeDNSEngine) {
 			f.fakeDNSEngine = fd
@@ -30,9 +32,9 @@ func (f *FakeDNSServer) QueryIP(ctx context.Context, domain string, _ dns.IPOpti
 	}
 	ips := f.fakeDNSEngine.GetFakeIPForDomain(domain)
 
-	netIP := toNetIP(ips)
-	if netIP == nil {
-		return nil, newError("Unable to convert IP to net ip").AtError()
+	netIP, err := toNetIP(ips)
+	if err != nil {
+		return nil, newError("Unable to convert IP to net ip").Base(err).AtError()
 	}
 
 	newError(f.Name(), " got answer: ", domain, " -> ", ips).AtInfo().WriteToLog()

app/dns/nameserver_local.go

@@ -0,0 +1,53 @@
+package dns
+
+import (
+	"context"
+
+	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/features/dns"
+	"github.com/xtls/xray-core/features/dns/localdns"
+)
+
+// LocalNameServer is an wrapper over local DNS feature.
+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
+
+	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)
+	}
+
+	if len(ips) > 0 {
+		newError("Localhost got answer: ", domain, " -> ", ips).AtInfo().WriteToLog()
+	}
+
+	return ips, err
+}
+
+// Name implements Server.
+func (s *LocalNameServer) Name() string {
+	return "localhost"
+}
+
+// NewLocalNameServer creates localdns server object for directly lookup in system DNS.
+func NewLocalNameServer() *LocalNameServer {
+	newError("DNS: created localhost client").AtInfo().WriteToLog()
+	return &LocalNameServer{
+		client: localdns.New(),
+	}
+}
+
+// NewLocalDNSClient creates localdns client object for directly lookup in system DNS.
+func NewLocalDNSClient() *Client {
+	return &Client{server: NewLocalNameServer()}
+}

app/dns/nameserver_local_test.go

@@ -7,17 +7,17 @@ import (
 
 	. "github.com/xtls/xray-core/app/dns"
 	"github.com/xtls/xray-core/common"
-	dns_feature "github.com/xtls/xray-core/features/dns"
+	"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*2)
-	ips, err := s.QueryIP(ctx, "google.com", dns_feature.IPOption{
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
+	ips, err := s.QueryIP(ctx, "google.com", net.IP{}, dns.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,
-		FakeEnable: false,
-	})
+	}, CacheStrategy_Cache_ALL)
 	cancel()
 	common.Must(err)
 	if len(ips) == 0 {

app/dns/nameserver_quic.go

@@ -0,0 +1,394 @@
+package dns
+
+import (
+	"context"
+	"net/url"
+	"sync"
+	"sync/atomic"
+	"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"
+	"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/transport/internet/tls"
+)
+
+// NextProtoDQ - During connection establishment, DNS/QUIC support is indicated
+// by selecting the ALPN token "dq" in the crypto handshake.
+const NextProtoDQ = "doq-i00"
+
+// QUICNameServer implemented DNS over QUIC
+type QUICNameServer struct {
+	sync.RWMutex
+	ips         map[string]record
+	pub         *pubsub.Service
+	cleanup     *task.Periodic
+	reqID       uint32
+	name        string
+	destination net.Destination
+	session     quic.Session
+}
+
+// NewQUICNameServer creates DNS-over-QUIC client object for local resolving
+func NewQUICNameServer(url *url.URL) (*QUICNameServer, error) {
+	newError("DNS: created Local DNS-over-QUIC client for ", url.String()).AtInfo().WriteToLog()
+
+	var err error
+	port := net.Port(784)
+	if url.Port() != "" {
+		port, err = net.PortFromString(url.Port())
+		if err != nil {
+			return nil, err
+		}
+	}
+	dest := net.UDPDestination(net.DomainAddress(url.Hostname()), port)
+
+	s := &QUICNameServer{
+		ips:         make(map[string]record),
+		pub:         pubsub.NewService(),
+		name:        url.String(),
+		destination: dest,
+	}
+	s.cleanup = &task.Periodic{
+		Interval: time.Minute,
+		Execute:  s.Cleanup,
+	}
+
+	return s, nil
+}
+
+// Name returns client name
+func (s *QUICNameServer) Name() string {
+	return s.name
+}
+
+// Cleanup clears expired items from cache
+func (s *QUICNameServer) 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 *QUICNameServer) updateIP(req *dnsRequest, ipRec *IPRecord) {
+	elapsed := time.Since(req.start)
+
+	s.Lock()
+	rec := s.ips[req.domain]
+	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 *QUICNameServer) newReqID() uint16 {
+	return uint16(atomic.AddUint32(&s.reqID, 1))
+}
+
+func (s *QUICNameServer) sendQuery(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption) {
+	newError(s.name, " querying: ", domain).AtInfo().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) {
+			// generate new context for each req, using same context
+			// may cause reqs all aborted if any one encounter an error
+			dnsCtx := context.Background()
+
+			// 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)
+			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.openStream(dnsCtx)
+			if err != nil {
+				newError("failed to open quic session").Base(err).AtError().WriteToLog()
+				return
+			}
+
+			_, err = conn.Write(b.Bytes())
+			if err != nil {
+				newError("failed to send query").Base(err).AtError().WriteToLog()
+				return
+			}
+
+			_ = conn.Close()
+
+			respBuf := buf.New()
+			defer respBuf.Release()
+			n, err := respBuf.ReadFrom(conn)
+			if err != nil && n == 0 {
+				newError("failed to read response").Base(err).AtError().WriteToLog()
+				return
+			}
+
+			rec, err := parseResponse(respBuf.Bytes())
+			if err != nil {
+				newError("failed to handle response").Base(err).AtError().WriteToLog()
+				return
+			}
+			s.updateIP(r, rec)
+		}(req)
+	}
+}
+
+func (s *QUICNameServer) 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 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...)
+	}
+
+	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 len(ips) > 0 {
+		return toNetIP(ips)
+	}
+
+	if lastErr != nil {
+		return nil, lastErr
+	}
+
+	if (option.IPv4Enable && record.A != nil) || (option.IPv6Enable && record.AAAA != nil) {
+		return nil, dns_feature.ErrEmptyResponse
+	}
+
+	return nil, errRecordNotFound
+}
+
+// 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) {
+	fqdn := Fqdn(domain)
+
+	if cs == CacheStrategy_Cache_DISABLE {
+		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
+			}
+		}
+	}
+
+	// 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)
+	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
+		}
+
+		select {
+		case <-ctx.Done():
+			return nil, ctx.Err()
+		case <-done:
+		}
+	}
+}
+
+func isActive(s quic.Session) bool {
+	select {
+	case <-s.Context().Done():
+		return false
+	default:
+		return true
+	}
+}
+
+func (s *QUICNameServer) getSession() (quic.Session, error) {
+	var session quic.Session
+	s.RLock()
+	session = s.session
+	if session != nil && isActive(session) {
+		s.RUnlock()
+		return session, nil
+	}
+	if session != nil {
+		// we're recreating the session, let's create a new one
+		_ = session.CloseWithError(0, "")
+	}
+	s.RUnlock()
+
+	s.Lock()
+	defer s.Unlock()
+
+	var err error
+	session, err = s.openSession()
+	if err != nil {
+		// This does not look too nice, but QUIC (or maybe quic-go)
+		// doesn't seem stable enough.
+		// Maybe retransmissions aren't fully implemented in quic-go?
+		// Anyways, the simple solution is to make a second try when
+		// it fails to open the QUIC session.
+		session, err = s.openSession()
+		if err != nil {
+			return nil, err
+		}
+	}
+	s.session = session
+	return session, nil
+}
+
+func (s *QUICNameServer) openSession() (quic.Session, error) {
+	tlsConfig := tls.Config{}
+	quicConfig := &quic.Config{}
+
+	session, err := quic.DialAddrContext(context.Background(), s.destination.NetAddr(), tlsConfig.GetTLSConfig(tls.WithNextProto("http/1.1", http2.NextProtoTLS, NextProtoDQ)), quicConfig)
+	if err != nil {
+		return nil, err
+	}
+
+	return session, nil
+}
+
+func (s *QUICNameServer) openStream(ctx context.Context) (quic.Stream, error) {
+	session, err := s.getSession()
+	if err != nil {
+		return nil, err
+	}
+
+	// open a new stream
+	return session.OpenStreamSync(ctx)
+}

app/dns/nameserver_quic_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 TestQUICNameServer(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)
+	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)
+	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,
+	}, CacheStrategy_Cache_ALL)
+	cancel()
+	common.Must(err)
+	if r := cmp.Diff(ips2, ips); r != "" {
+		t.Fatal(r)
+	}
+}

app/dns/nameserver_udp.go

@@ -2,7 +2,6 @@ package dns
 
 import (
 	"context"
-	"github.com/xtls/xray-core/transport/internet"
 	"strings"
 	"sync"
 	"sync/atomic"
@@ -32,10 +31,10 @@ type ClassicNameServer struct {
 	udpServer *udp.Dispatcher
 	cleanup   *task.Periodic
 	reqID     uint32
-	clientIP  net.IP
 }
 
-func NewClassicNameServer(address net.Destination, dispatcher routing.Dispatcher, clientIP net.IP) *ClassicNameServer {
+// NewClassicNameServer creates udp server object for remote resolving.
+func NewClassicNameServer(address net.Destination, dispatcher routing.Dispatcher) *ClassicNameServer {
 	// default to 53 if unspecific
 	if address.Port == 0 {
 		address.Port = net.Port(53)
@@ -45,7 +44,6 @@ func NewClassicNameServer(address net.Destination, dispatcher routing.Dispatcher
 		address:  address,
 		ips:      make(map[string]record),
 		requests: make(map[uint16]dnsRequest),
-		clientIP: clientIP,
 		pub:      pubsub.NewService(),
 		name:     strings.ToUpper(address.String()),
 	}
@@ -58,10 +56,12 @@ func NewClassicNameServer(address net.Destination, dispatcher routing.Dispatcher
 	return s
 }
 
+// Name implements Server.
 func (s *ClassicNameServer) Name() string {
 	return s.name
 }
 
+// Cleanup clears expired items from cache
 func (s *ClassicNameServer) Cleanup() error {
 	now := time.Now()
 	s.Lock()
@@ -103,6 +103,7 @@ func (s *ClassicNameServer) Cleanup() error {
 	return nil
 }
 
+// HandleResponse handles udp response packet from remote DNS server.
 func (s *ClassicNameServer) HandleResponse(ctx context.Context, packet *udp_proto.Packet) {
 	ipRec, err := parseResponse(packet.Payload.Bytes())
 	if err != nil {
@@ -180,10 +181,10 @@ func (s *ClassicNameServer) addPendingRequest(req *dnsRequest) {
 	s.requests[id] = *req
 }
 
-func (s *ClassicNameServer) sendQuery(ctx context.Context, domain string, option dns_feature.IPOption) {
+func (s *ClassicNameServer) 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(s.clientIP))
+	reqs := buildReqMsgs(domain, option, s.newReqID, genEDNS0Options(clientIP))
 
 	for _, req := range reqs {
 		s.addPendingRequest(req)
@@ -192,7 +193,6 @@ func (s *ClassicNameServer) sendQuery(ctx context.Context, domain string, option
 		if inbound := session.InboundFromContext(ctx); inbound != nil {
 			udpCtx = session.ContextWithInbound(udpCtx, inbound)
 		}
-		udpCtx = internet.ContextWithLookupDomain(udpCtx, internet.LookupDomainFromContext(ctx))
 		udpCtx = session.ContextWithContent(udpCtx, &session.Content{
 			Protocol: "dns",
 		})
@@ -234,7 +234,7 @@ func (s *ClassicNameServer) findIPsForDomain(domain string, option dns_feature.I
 	}
 
 	if len(ips) > 0 {
-		return toNetIP(ips), nil
+		return toNetIP(ips)
 	}
 
 	if lastErr != nil {
@@ -245,14 +245,20 @@ func (s *ClassicNameServer) findIPsForDomain(domain string, option dns_feature.I
 }
 
 // QueryIP implements Server.
-func (s *ClassicNameServer) QueryIP(ctx context.Context, domain string, option dns_feature.IPOption) ([]net.IP, error) {
+func (s *ClassicNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, cs CacheStrategy) ([]net.IP, error) {
 	fqdn := Fqdn(domain)
 
-	ips, err := s.findIPsForDomain(fqdn, option)
-	if err != errRecordNotFound {
-		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
+	if cs == CacheStrategy_Cache_DISABLE {
+		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
+			}
+		}
 	}
 
 	// ipv4 and ipv6 belong to different subscription groups
@@ -281,7 +287,7 @@ func (s *ClassicNameServer) QueryIP(ctx context.Context, domain string, option d
 		}
 		close(done)
 	}()
-	s.sendQuery(ctx, fqdn, option)
+	s.sendQuery(ctx, fqdn, clientIP, option)
 	start := time.Now()
 
 	for {

app/dns/options.go

@@ -0,0 +1,16 @@
+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/dns/server.go

@@ -1,439 +0,0 @@
-package dns
-
-//go:generate go run github.com/xtls/xray-core/common/errors/errorgen
-
-import (
-	"context"
-	"fmt"
-	"log"
-	"net/url"
-	"strings"
-	"sync"
-	"time"
-
-	"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/net"
-	"github.com/xtls/xray-core/common/session"
-	"github.com/xtls/xray-core/common/strmatcher"
-	"github.com/xtls/xray-core/common/uuid"
-	core "github.com/xtls/xray-core/core"
-	"github.com/xtls/xray-core/features"
-	"github.com/xtls/xray-core/features/dns"
-	"github.com/xtls/xray-core/features/routing"
-	"github.com/xtls/xray-core/transport/internet"
-)
-
-// Server is a DNS rely server.
-type Server struct {
-	sync.Mutex
-	hosts         *StaticHosts
-	clientIP      net.IP
-	clients       []Client // clientIdx -> Client
-	ctx           context.Context
-	ipIndexMap    []*MultiGeoIPMatcher // clientIdx -> *MultiGeoIPMatcher
-	domainRules   [][]string           // clientIdx -> domainRuleIdx -> DomainRule
-	domainMatcher strmatcher.IndexMatcher
-	matcherInfos  []DomainMatcherInfo // matcherIdx -> DomainMatcherInfo
-	tag           string
-}
-
-// DomainMatcherInfo contains information attached to index returned by Server.domainMatcher
-type DomainMatcherInfo struct {
-	clientIdx     uint16
-	domainRuleIdx uint16
-}
-
-// MultiGeoIPMatcher for match
-type MultiGeoIPMatcher struct {
-	matchers []*router.GeoIPMatcher
-}
-
-var errExpectedIPNonMatch = errors.New("expectIPs not match")
-
-// Match check ip match
-func (c *MultiGeoIPMatcher) Match(ip net.IP) bool {
-	for _, matcher := range c.matchers {
-		if matcher.Match(ip) {
-			return true
-		}
-	}
-	return false
-}
-
-// HasMatcher check has matcher
-func (c *MultiGeoIPMatcher) HasMatcher() bool {
-	return len(c.matchers) > 0
-}
-
-func generateRandomTag() string {
-	id := uuid.New()
-	return "xray.system." + id.String()
-}
-
-// New creates a new DNS server with given configuration.
-func New(ctx context.Context, config *Config) (*Server, error) {
-	server := &Server{
-		clients: make([]Client, 0, len(config.NameServers)+len(config.NameServer)),
-		ctx:     ctx,
-		tag:     config.Tag,
-	}
-	if server.tag == "" {
-		server.tag = generateRandomTag()
-	}
-	if len(config.ClientIp) > 0 {
-		if len(config.ClientIp) != net.IPv4len && len(config.ClientIp) != net.IPv6len {
-			return nil, newError("unexpected IP length", len(config.ClientIp))
-		}
-		server.clientIP = net.IP(config.ClientIp)
-	}
-
-	hosts, err := NewStaticHosts(config.StaticHosts, config.Hosts)
-	if err != nil {
-		return nil, newError("failed to create hosts").Base(err)
-	}
-	server.hosts = hosts
-
-	addNameServer := func(ns *NameServer) int {
-		endpoint := ns.Address
-		address := endpoint.Address.AsAddress()
-
-		switch {
-		case address.Family().IsDomain() && address.Domain() == "localhost":
-			server.clients = append(server.clients, NewLocalNameServer())
-			// Priotize local domains with specific TLDs or without any dot to local DNS
-			// 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
-			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"},
-			}
-			ns.PrioritizedDomain = append(ns.PrioritizedDomain, localTLDsAndDotlessDomains...)
-
-		case address.Family().IsDomain() && strings.HasPrefix(address.Domain(), "https+local://"):
-			// URI schemed string treated as domain
-			// DOH Local mode
-			u, err := url.Parse(address.Domain())
-			if err != nil {
-				log.Fatalln(newError("DNS config error").Base(err))
-			}
-			server.clients = append(server.clients, NewDoHLocalNameServer(u, server.clientIP))
-
-		case address.Family().IsDomain() && strings.HasPrefix(address.Domain(), "https://"):
-			// DOH Remote mode
-			u, err := url.Parse(address.Domain())
-			if err != nil {
-				log.Fatalln(newError("DNS config error").Base(err))
-			}
-			idx := len(server.clients)
-			server.clients = append(server.clients, nil)
-
-			// need the core dispatcher, register DOHClient at callback
-			common.Must(core.RequireFeatures(ctx, func(d routing.Dispatcher) {
-				c, err := NewDoHNameServer(u, d, server.clientIP)
-				if err != nil {
-					log.Fatalln(newError("DNS config error").Base(err))
-				}
-				server.clients[idx] = c
-			}))
-
-		case address.Family().IsDomain() && address.Domain() == "fakedns":
-			server.clients = append(server.clients, NewFakeDNSServer())
-
-		default:
-			// UDP classic DNS mode
-			dest := endpoint.AsDestination()
-			if dest.Network == net.Network_Unknown {
-				dest.Network = net.Network_UDP
-			}
-			if dest.Network == net.Network_UDP {
-				idx := len(server.clients)
-				server.clients = append(server.clients, nil)
-
-				common.Must(core.RequireFeatures(ctx, func(d routing.Dispatcher) {
-					server.clients[idx] = NewClassicNameServer(dest, d, server.clientIP)
-				}))
-			}
-		}
-		server.ipIndexMap = append(server.ipIndexMap, nil)
-		return len(server.clients) - 1
-	}
-
-	if len(config.NameServers) > 0 {
-		features.PrintDeprecatedFeatureWarning("simple DNS server")
-		for _, destPB := range config.NameServers {
-			addNameServer(&NameServer{Address: destPB})
-		}
-	}
-
-	if len(config.NameServer) > 0 {
-		clientIndices := []int{}
-		domainRuleCount := 0
-		for _, ns := range config.NameServer {
-			idx := addNameServer(ns)
-			clientIndices = append(clientIndices, idx)
-			domainRuleCount += len(ns.PrioritizedDomain)
-		}
-
-		domainRules := make([][]string, len(server.clients))
-		domainMatcher := &strmatcher.MatcherGroup{}
-		matcherInfos := make([]DomainMatcherInfo, domainRuleCount+1) // matcher index starts from 1
-		var geoIPMatcherContainer router.GeoIPMatcherContainer
-		for nidx, ns := range config.NameServer {
-			idx := clientIndices[nidx]
-
-			// Establish domain rule matcher
-			rules := []string{}
-			ruleCurr := 0
-			ruleIter := 0
-			for _, domain := range ns.PrioritizedDomain {
-				matcher, err := toStrMatcher(domain.Type, domain.Domain)
-				if err != nil {
-					return nil, newError("failed to create prioritized domain").Base(err).AtWarning()
-				}
-				midx := domainMatcher.Add(matcher)
-				if midx >= uint32(len(matcherInfos)) { // This rarely happens according to current matcher's implementation
-					newError("expanding domain matcher info array to size ", midx, " when adding ", matcher).AtDebug().WriteToLog()
-					matcherInfos = append(matcherInfos, make([]DomainMatcherInfo, midx-uint32(len(matcherInfos))+1)...)
-				}
-				info := &matcherInfos[midx]
-				info.clientIdx = uint16(idx)
-				if ruleCurr < len(ns.OriginalRules) {
-					info.domainRuleIdx = uint16(ruleCurr)
-					rule := ns.OriginalRules[ruleCurr]
-					if ruleCurr >= len(rules) {
-						rules = append(rules, rule.Rule)
-					}
-					ruleIter++
-					if ruleIter >= int(rule.Size) {
-						ruleIter = 0
-						ruleCurr++
-					}
-				} else { // No original rule, generate one according to current domain matcher (majorly for compatibility with tests)
-					info.domainRuleIdx = uint16(len(rules))
-					rules = append(rules, matcher.String())
-				}
-			}
-			domainRules[idx] = rules
-
-			// only add to ipIndexMap if GeoIP is configured
-			if len(ns.Geoip) > 0 {
-				var matchers []*router.GeoIPMatcher
-				for _, geoip := range ns.Geoip {
-					matcher, err := geoIPMatcherContainer.Add(geoip)
-					if err != nil {
-						return nil, newError("failed to create ip matcher").Base(err).AtWarning()
-					}
-					matchers = append(matchers, matcher)
-				}
-				matcher := &MultiGeoIPMatcher{matchers: matchers}
-				server.ipIndexMap[idx] = matcher
-			}
-		}
-		server.domainRules = domainRules
-		server.domainMatcher = domainMatcher
-		server.matcherInfos = matcherInfos
-	}
-
-	if len(server.clients) == 0 {
-		server.clients = append(server.clients, NewLocalNameServer())
-		server.ipIndexMap = append(server.ipIndexMap, nil)
-	}
-
-	return server, nil
-}
-
-// Type implements common.HasType.
-func (*Server) Type() interface{} {
-	return dns.ClientType()
-}
-
-// Start implements common.Runnable.
-func (s *Server) Start() error {
-	return nil
-}
-
-// Close implements common.Closable.
-func (s *Server) Close() error {
-	return nil
-}
-
-func (s *Server) IsOwnLink(ctx context.Context) bool {
-	inbound := session.InboundFromContext(ctx)
-	return inbound != nil && inbound.Tag == s.tag
-}
-
-// Match check dns ip match geoip
-func (s *Server) Match(idx int, client Client, domain string, ips []net.IP) ([]net.IP, error) {
-	var matcher *MultiGeoIPMatcher
-	if idx < len(s.ipIndexMap) {
-		matcher = s.ipIndexMap[idx]
-	}
-	if matcher == nil {
-		return ips, nil
-	}
-
-	if !matcher.HasMatcher() {
-		newError("domain ", domain, " server has no valid matcher: ", client.Name(), " idx:", idx).AtDebug().WriteToLog()
-		return ips, nil
-	}
-
-	newIps := []net.IP{}
-	for _, ip := range ips {
-		if matcher.Match(ip) {
-			newIps = append(newIps, ip)
-		}
-	}
-	if len(newIps) == 0 {
-		return nil, errExpectedIPNonMatch
-	}
-	newError("domain ", domain, " expectIPs ", newIps, " matched at server ", client.Name(), " idx:", idx).AtDebug().WriteToLog()
-	return newIps, nil
-}
-
-func (s *Server) queryIPTimeout(idx int, client Client, domain string, option dns.IPOption) ([]net.IP, error) {
-	ctx, cancel := context.WithTimeout(s.ctx, time.Second*4)
-	if len(s.tag) > 0 {
-		ctx = session.ContextWithInbound(ctx, &session.Inbound{
-			Tag: s.tag,
-		})
-	}
-	ctx = internet.ContextWithLookupDomain(ctx, domain)
-	ips, err := client.QueryIP(ctx, domain, option)
-	cancel()
-
-	if err != nil {
-		return ips, err
-	}
-
-	ips, err = s.Match(idx, client, domain, ips)
-	return ips, err
-}
-
-func (s *Server) lookupStatic(domain string, option dns.IPOption, depth int32) []net.Address {
-	ips := s.hosts.LookupIP(domain, option)
-	if ips == nil {
-		return nil
-	}
-	if ips[0].Family().IsDomain() && depth < 5 {
-		if newIPs := s.lookupStatic(ips[0].Domain(), option, depth+1); newIPs != nil {
-			return newIPs
-		}
-	}
-	return ips
-}
-
-func toNetIP(ips []net.Address) []net.IP {
-	if len(ips) == 0 {
-		return nil
-	}
-	netips := make([]net.IP, 0, len(ips))
-	for _, ip := range ips {
-		netips = append(netips, ip.IP())
-	}
-	return netips
-}
-
-// LookupIP implements dns.Client.
-func (s *Server) LookupIP(domain string, option dns.IPOption) ([]net.IP, error) {
-	if domain == "" {
-		return nil, newError("empty domain name")
-	}
-	domain = strings.ToLower(domain)
-
-	// normalize the FQDN form query
-	if strings.HasSuffix(domain, ".") {
-		domain = domain[:len(domain)-1]
-	}
-
-	ips := s.lookupStatic(domain, option, 0)
-	if ips != nil && ips[0].Family().IsIP() {
-		newError("returning ", len(ips), " IPs for domain ", domain).WriteToLog()
-		return toNetIP(ips), nil
-	}
-
-	if ips != nil && ips[0].Family().IsDomain() {
-		newdomain := ips[0].Domain()
-		newError("domain replaced: ", domain, " -> ", newdomain).WriteToLog()
-		domain = newdomain
-	}
-
-	var lastErr error
-	var matchedClient Client
-	if s.domainMatcher != nil {
-		indices := s.domainMatcher.Match(domain)
-		domainRules := []string{}
-		matchingDNS := []string{}
-		for _, idx := range indices {
-			info := s.matcherInfos[idx]
-			rule := s.domainRules[info.clientIdx][info.domainRuleIdx]
-			domainRules = append(domainRules, fmt.Sprintf("%s(DNS idx:%d)", rule, info.clientIdx))
-			matchingDNS = append(matchingDNS, s.clients[info.clientIdx].Name())
-		}
-		if len(domainRules) > 0 {
-			newError("domain ", domain, " matches following rules: ", domainRules).AtDebug().WriteToLog()
-		}
-		if len(matchingDNS) > 0 {
-			newError("domain ", domain, " uses following DNS first: ", matchingDNS).AtDebug().WriteToLog()
-		}
-		for _, idx := range indices {
-			clientIdx := int(s.matcherInfos[idx].clientIdx)
-			matchedClient = s.clients[clientIdx]
-			if !option.FakeEnable && strings.EqualFold(matchedClient.Name(), "FakeDNS") {
-				newError("skip DNS resolution for domain ", domain, " at server ", matchedClient.Name()).AtDebug().WriteToLog()
-				continue
-			}
-			ips, err := s.queryIPTimeout(clientIdx, matchedClient, domain, option)
-			if len(ips) > 0 {
-				return ips, nil
-			}
-			if err == dns.ErrEmptyResponse {
-				return nil, err
-			}
-			if err != nil {
-				newError("failed to lookup ip for domain ", domain, " at server ", matchedClient.Name()).Base(err).WriteToLog()
-				lastErr = err
-			}
-		}
-	}
-
-	for idx, client := range s.clients {
-		if client == matchedClient {
-			newError("domain ", domain, " at server ", client.Name(), " idx:", idx, " already lookup failed, just ignore").AtDebug().WriteToLog()
-			continue
-		}
-		if !option.FakeEnable && strings.EqualFold(client.Name(), "FakeDNS") {
-			newError("skip DNS resolution for domain ", domain, " at server ", client.Name()).AtDebug().WriteToLog()
-			continue
-		}
-		ips, err := s.queryIPTimeout(idx, client, domain, option)
-		if len(ips) > 0 {
-			return ips, nil
-		}
-
-		if err != nil {
-			newError("failed to lookup ip for domain ", domain, " at server ", client.Name()).Base(err).WriteToLog()
-			lastErr = err
-		}
-		if err != context.Canceled && err != context.DeadlineExceeded && err != errExpectedIPNonMatch {
-			return nil, err
-		}
-	}
-
-	return nil, newError("returning nil for domain ", domain).Base(lastErr)
-}
-
-func init() {
-	common.Must(common.RegisterConfig((*Config)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
-		return New(ctx, config.(*Config))
-	}))
-}

app/proxyman/config.go

@@ -1,5 +1,12 @@
 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
@@ -37,3 +44,32 @@ 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

@@ -1,13 +1,15 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.25.0
-// 	protoc        (unknown)
+// 	protoc        v3.15.6
 // 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"
@@ -240,8 +242,9 @@ 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     []string `protobuf:"bytes,3,rep,name=domains_excluded,json=domainsExcluded,proto3" json:"domains_excluded,omitempty"`
+	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"`
 	// 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"`
@@ -293,13 +296,20 @@ func (x *SniffingConfig) GetDestinationOverride() []string {
 	return nil
 }
 
-func (x *SniffingConfig) GetDomainsExcluded() []string {
+func (x *SniffingConfig) GetDomainsExcluded() []*domain.Domain {
 	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
@@ -738,133 +748,144 @@ var File_app_proxyman_config_proto protoreflect.FileDescriptor
 var file_app_proxyman_config_proto_rawDesc = []byte{
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+	0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -894,33 +915,37 @@ 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
-	(*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
+	(*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
 }
 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.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
+	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
 }
 
 func init() { file_app_proxyman_config_proto_init() }

app/proxyman/config.proto

@@ -6,6 +6,8 @@ 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";
@@ -56,7 +58,9 @@ 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 string domains_excluded = 3;
+
+  repeated xray.common.matcher.domain.Domain domains_excluded = 3;
+  repeated xray.common.matcher.geoip.GeoIP ips_excluded = 5;
   
   // 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

@@ -0,0 +1,9 @@
+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

@@ -91,13 +91,20 @@ 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:  receiverConfig.GetEffectiveSniffingSettings(),
+				sniffingConfig:  sc,
+				sniffingMatcher: sm,
 				uplinkCounter:   uplinkCounter,
 				downlinkCounter: downlinkCounter,
 				ctx:             ctx,
@@ -110,6 +117,12 @@ 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),
@@ -118,7 +131,8 @@ func NewAlwaysOnInboundHandler(ctx context.Context, tag string, receiverConfig *
 					recvOrigDest:    receiverConfig.ReceiveOriginalDestination,
 					tag:             tag,
 					dispatcher:      h.mux,
-					sniffingConfig:  receiverConfig.GetEffectiveSniffingSettings(),
+					sniffingConfig:  sc,
+					sniffingMatcher: sm,
 					uplinkCounter:   uplinkCounter,
 					downlinkCounter: downlinkCounter,
 					ctx:             ctx,

app/proxyman/inbound/worker.go

@@ -39,6 +39,7 @@ type tcpWorker struct {
 	tag             string
 	dispatcher      routing.Dispatcher
 	sniffingConfig  *proxyman.SniffingConfig
+	sniffingMatcher *proxyman.SniffingMatcher
 	uplinkCounter   stats.Counter
 	downlinkCounter stats.Counter
 
@@ -97,7 +98,8 @@ 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.ExcludeForDomain = w.sniffingConfig.DomainsExcluded
+		content.SniffingRequest.ExcludedDomainMatcher = w.sniffingMatcher.ExDomain
+		content.SniffingRequest.ExcludedIPMatcher = w.sniffingMatcher.ExIP
 		content.SniffingRequest.MetadataOnly = w.sniffingConfig.MetadataOnly
 	}
 	ctx = session.ContextWithContent(ctx, content)
@@ -428,6 +430,7 @@ type dsWorker struct {
 	tag             string
 	dispatcher      routing.Dispatcher
 	sniffingConfig  *proxyman.SniffingConfig
+	sniffingMatcher *proxyman.SniffingMatcher
 	uplinkCounter   stats.Counter
 	downlinkCounter stats.Counter
 
@@ -459,7 +462,8 @@ 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.ExcludeForDomain = w.sniffingConfig.DomainsExcluded
+		content.SniffingRequest.ExcludedDomainMatcher = w.sniffingMatcher.ExDomain
+		content.SniffingRequest.ExcludedIPMatcher = w.sniffingMatcher.ExIP
 		content.SniffingRequest.MetadataOnly = w.sniffingConfig.MetadataOnly
 	}
 	ctx = session.ContextWithContent(ctx, content)

app/router/command/command_test.go

@@ -12,6 +12,8 @@ import (
 	. "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"
@@ -231,11 +233,11 @@ func TestSerivceTestRoute(t *testing.T) {
 				TargetTag:      &router.RoutingRule_Tag{Tag: "out"},
 			},
 			{
-				Domain:    []*router.Domain{{Type: router.Domain_Domain, Value: "com"}},
+				Domain:    []*domain.Domain{{Type: domain.MatchingType_Subdomain, Value: "com"}},
 				TargetTag: &router.RoutingRule_Tag{Tag: "out"},
 			},
 			{
-				SourceGeoip: []*router.GeoIP{{CountryCode: "private", Cidr: []*router.CIDR{{Ip: []byte{127, 0, 0, 0}, Prefix: 8}}}},
+				SourceGeoip: []*geoip.GeoIP{{CountryCode: "private", Cidr: []*geoip.CIDR{{Ip: []byte{127, 0, 0, 0}, Prefix: 8}}}},
 				TargetTag:   &router.RoutingRule_Tag{Tag: "out"},
 			},
 			{

app/router/command/config.go

@@ -28,6 +28,12 @@ func (c routingContext) GetTargetPort() net.Port {
 	return net.Port(c.RoutingContext.GetTargetPort())
 }
 
+// GetSkipDNSResolve is a mock implementation here to match the interface,
+// SkipDNSResolve is set from dns module, no use if coming from a protobuf object?
+func (c routingContext) GetSkipDNSResolve() bool {
+	return false
+}
+
 // AsRoutingContext converts a protobuf RoutingContext into an implementation of routing.Context.
 func AsRoutingContext(r *RoutingContext) routing.Context {
 	return routingContext{r}

app/router/condition.go

@@ -7,7 +7,6 @@ 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"
 )
 
@@ -41,100 +40,6 @@ 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 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(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(strings.ToLower(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_test.go

@@ -11,6 +11,9 @@ 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"
@@ -26,10 +29,10 @@ 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, "..", "..", "release", "config", "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, "..", "..", "release", "config", "geosite.dat")))
+		common.Must(filesystem.CopyFile(platform.GetAssetLocation("geosite.dat"), filepath.Join(wd, "..", "..", "resources", "geosite.dat")))
 	}
 }
 
@@ -61,18 +64,18 @@ func TestRoutingRule(t *testing.T) {
 	}{
 		{
 			rule: &RoutingRule{
-				Domain: []*Domain{
+				Domain: []*domain.Domain{
 					{
 						Value: "example.com",
-						Type:  Domain_Plain,
+						Type:  domain.MatchingType_Keyword,
 					},
 					{
 						Value: "google.com",
-						Type:  Domain_Domain,
+						Type:  domain.MatchingType_Subdomain,
 					},
 					{
 						Value: "^facebook\\.com$",
-						Type:  Domain_Regex,
+						Type:  domain.MatchingType_Regex,
 					},
 				},
 			},
@@ -109,7 +112,7 @@ func TestRoutingRule(t *testing.T) {
 		},
 		{
 			rule: &RoutingRule{
-				Cidr: []*CIDR{
+				Cidr: []*geoip.CIDR{
 					{
 						Ip:     []byte{8, 8, 8, 8},
 						Prefix: 32,
@@ -145,9 +148,9 @@ func TestRoutingRule(t *testing.T) {
 		},
 		{
 			rule: &RoutingRule{
-				Geoip: []*GeoIP{
+				Geoip: []*geoip.GeoIP{
 					{
-						Cidr: []*CIDR{
+						Cidr: []*geoip.CIDR{
 							{
 								Ip:     []byte{8, 8, 8, 8},
 								Prefix: 32,
@@ -185,7 +188,7 @@ func TestRoutingRule(t *testing.T) {
 		},
 		{
 			rule: &RoutingRule{
-				SourceCidr: []*CIDR{
+				SourceCidr: []*geoip.CIDR{
 					{
 						Ip:     []byte{192, 168, 0, 0},
 						Prefix: 16,
@@ -333,19 +336,19 @@ func TestRoutingRule(t *testing.T) {
 	}
 }
 
-func loadGeoSite(country string) ([]*Domain, error) {
+func loadGeoSite(country string) ([]*domain.Domain, error) {
 	geositeBytes, err := filesystem.ReadAsset("geosite.dat")
 	if err != nil {
 		return nil, err
 	}
-	var geositeList GeoSiteList
+	var geositeList geosite.GeoSiteList
 	if err := proto.Unmarshal(geositeBytes, &geositeList); err != nil {
 		return nil, err
 	}
 
 	for _, site := range geositeList.Entry {
 		if site.CountryCode == country {
-			return site.Domain, nil
+			return geosite.ToDomains(site.Domain), nil
 		}
 	}
 
@@ -356,7 +359,10 @@ func TestChinaSites(t *testing.T) {
 	domains, err := loadGeoSite("CN")
 	common.Must(err)
 
-	matcher, err := NewDomainMatcher(domains)
+	matcher, err := domain.NewDomainMatcher(domains)
+	common.Must(err)
+
+	acMatcher, err := domain.NewMphMatcherGroup(domains)
 	common.Must(err)
 
 	type TestCase struct {
@@ -387,20 +393,126 @@ func TestChinaSites(t *testing.T) {
 	}
 
 	for _, testCase := range testCases {
-		r := matcher.ApplyDomain(testCase.Domain)
-		if r != testCase.Output {
-			t.Error("expected output ", testCase.Output, " for domain ", testCase.Domain, " but got ", r)
+		r1 := matcher.ApplyDomain(testCase.Domain)
+		r2 := acMatcher.ApplyDomain(testCase.Domain)
+		if r1 != testCase.Output {
+			t.Error("DomainMatcher expected output ", testCase.Output, " for domain ", testCase.Domain, " but got ", r1)
+		} else if r2 != testCase.Output {
+			t.Error("ACDomainMatcher expected output ", testCase.Output, " for domain ", testCase.Domain, " but got ", r2)
 		}
 	}
 }
 
+func BenchmarkMphDomainMatcher(b *testing.B) {
+	domains, err := loadGeoSite("CN")
+	common.Must(err)
+
+	matcher, err := domain.NewMphMatcherGroup(domains)
+	common.Must(err)
+
+	type TestCase struct {
+		Domain string
+		Output bool
+	}
+	testCases := []TestCase{
+		{
+			Domain: "163.com",
+			Output: true,
+		},
+		{
+			Domain: "163.com",
+			Output: true,
+		},
+		{
+			Domain: "164.com",
+			Output: false,
+		},
+		{
+			Domain: "164.com",
+			Output: false,
+		},
+	}
+
+	for i := 0; i < 1024; i++ {
+		testCases = append(testCases, TestCase{Domain: strconv.Itoa(i) + ".not-exists.com", Output: false})
+	}
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		for _, testCase := range testCases {
+			_ = matcher.ApplyDomain(testCase.Domain)
+		}
+	}
+}
+
+func BenchmarkDomainMatcher(b *testing.B) {
+	domains, err := loadGeoSite("CN")
+	common.Must(err)
+
+	matcher, err := domain.NewDomainMatcher(domains)
+	common.Must(err)
+
+	type TestCase struct {
+		Domain string
+		Output bool
+	}
+	testCases := []TestCase{
+		{
+			Domain: "163.com",
+			Output: true,
+		},
+		{
+			Domain: "163.com",
+			Output: true,
+		},
+		{
+			Domain: "164.com",
+			Output: false,
+		},
+		{
+			Domain: "164.com",
+			Output: false,
+		},
+	}
+
+	for i := 0; i < 1024; i++ {
+		testCases = append(testCases, TestCase{Domain: strconv.Itoa(i) + ".not-exists.com", Output: false})
+	}
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		for _, testCase := range testCases {
+			_ = matcher.ApplyDomain(testCase.Domain)
+		}
+	}
+}
+
+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
+	var geoips []*geoip.GeoIP
 
 	{
 		ips, err := loadGeoIP("CN")
 		common.Must(err)
-		geoips = append(geoips, &GeoIP{
+		geoips = append(geoips, &geoip.GeoIP{
 			CountryCode: "CN",
 			Cidr:        ips,
 		})
@@ -409,7 +521,7 @@ func BenchmarkMultiGeoIPMatcher(b *testing.B) {
 	{
 		ips, err := loadGeoIP("JP")
 		common.Must(err)
-		geoips = append(geoips, &GeoIP{
+		geoips = append(geoips, &geoip.GeoIP{
 			CountryCode: "JP",
 			Cidr:        ips,
 		})
@@ -418,7 +530,7 @@ func BenchmarkMultiGeoIPMatcher(b *testing.B) {
 	{
 		ips, err := loadGeoIP("CA")
 		common.Must(err)
-		geoips = append(geoips, &GeoIP{
+		geoips = append(geoips, &geoip.GeoIP{
 			CountryCode: "CA",
 			Cidr:        ips,
 		})
@@ -427,13 +539,13 @@ func BenchmarkMultiGeoIPMatcher(b *testing.B) {
 	{
 		ips, err := loadGeoIP("US")
 		common.Must(err)
-		geoips = append(geoips, &GeoIP{
+		geoips = append(geoips, &geoip.GeoIP{
 			CountryCode: "US",
 			Cidr:        ips,
 		})
 	}
 
-	matcher, err := NewMultiGeoIPMatcher(geoips, false)
+	matcher, err := geoip.NewMultiGeoIPMatcher(geoips, false)
 	common.Must(err)
 
 	ctx := withOutbound(&session.Outbound{Target: net.TCPDestination(net.ParseAddress("8.8.8.8"), 80)})

app/router/config.go

@@ -1,50 +1,13 @@
 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
@@ -67,11 +30,24 @@ func (rr *RoutingRule) BuildCondition() (Condition, error) {
 	conds := NewConditionChan()
 
 	if len(rr.Domain) > 0 {
-		matcher, err := NewDomainMatcher(rr.Domain)
-		if err != nil {
-			return nil, newError("failed to build domain condition").Base(err)
+		switch rr.DomainMatcher {
+		case "linear":
+			matcher, err := dm.NewDomainMatcher(rr.Domain)
+			if err != nil {
+				return nil, newError("failed to build domain condition").Base(err)
+			}
+			conds.Add(matcher)
+		case "mph", "hybrid":
+			fallthrough
+		default:
+			matcher, err := dm.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)
 		}
-		conds.Add(matcher)
+
 	}
 
 	if len(rr.UserEmail) > 0 {
@@ -99,13 +75,13 @@ func (rr *RoutingRule) BuildCondition() (Condition, error) {
 	}
 
 	if len(rr.Geoip) > 0 {
-		cond, err := NewMultiGeoIPMatcher(rr.Geoip, false)
+		cond, err := geoip.NewMultiGeoIPMatcher(rr.Geoip, false)
 		if err != nil {
 			return nil, err
 		}
 		conds.Add(cond)
 	} else if len(rr.Cidr) > 0 {
-		cond, err := NewMultiGeoIPMatcher([]*GeoIP{{Cidr: rr.Cidr}}, false)
+		cond, err := geoip.NewMultiGeoIPMatcher([]*geoip.GeoIP{{Cidr: rr.Cidr}}, false)
 		if err != nil {
 			return nil, err
 		}
@@ -113,13 +89,13 @@ func (rr *RoutingRule) BuildCondition() (Condition, error) {
 	}
 
 	if len(rr.SourceGeoip) > 0 {
-		cond, err := NewMultiGeoIPMatcher(rr.SourceGeoip, true)
+		cond, err := geoip.NewMultiGeoIPMatcher(rr.SourceGeoip, true)
 		if err != nil {
 			return nil, err
 		}
 		conds.Add(cond)
 	} else if len(rr.SourceCidr) > 0 {
-		cond, err := NewMultiGeoIPMatcher([]*GeoIP{{Cidr: rr.SourceCidr}}, true)
+		cond, err := geoip.NewMultiGeoIPMatcher([]*geoip.GeoIP{{Cidr: rr.SourceCidr}}, true)
 		if err != nil {
 			return nil, err
 		}

app/router/config.proto

@@ -8,66 +8,8 @@ option java_multiple_files = true;
 
 import "common/net/port.proto";
 import "common/net/network.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;
-}
+import "common/matcher/domain/domain.proto";
+import "common/matcher/geoip/geoip.proto";
 
 message RoutingRule {
   oneof target_tag {
@@ -79,17 +21,17 @@ message RoutingRule {
   }
 
   // List of domains for target domain matching.
-  repeated Domain domain = 2;
+  repeated xray.common.matcher.domain.Domain domain = 2;
 
   // List of CIDRs for target IP address matching.
   // Deprecated. Use geoip below.
-  repeated CIDR cidr = 3 [deprecated = true];
+  repeated xray.common.matcher.geoip.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 GeoIP geoip = 10;
+  repeated xray.common.matcher.geoip.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.
@@ -105,11 +47,11 @@ message RoutingRule {
   repeated xray.common.net.Network networks = 13;
 
   // List of CIDRs for source IP address matching.
-  repeated CIDR source_cidr = 6 [deprecated = true];
+  repeated xray.common.matcher.geoip.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 GeoIP source_geoip = 11;
+  repeated xray.common.matcher.geoip.GeoIP source_geoip = 11;
 
   // List of ports for source port matching.
   xray.common.net.PortList source_port_list = 16;
@@ -119,6 +61,8 @@ message RoutingRule {
   repeated string protocol = 9;
 
   string attributes = 15;
+
+  string domain_matcher = 17;
 }
 
 message BalancingRule {

app/router/router.go

@@ -80,7 +80,13 @@ func (r *Router) PickRoute(ctx routing.Context) (routing.Route, error) {
 }
 
 func (r *Router) pickRouteInternal(ctx routing.Context) (*Rule, routing.Context, error) {
-	if r.domainStrategy == Config_IpOnDemand {
+
+	// SkipDNSResolve is set from DNS module.
+	// the DOH remote server maybe a domain name,
+	// this prevents cycle resolving dead loop
+	skipDNSResolve := ctx.GetSkipDNSResolve()
+
+	if r.domainStrategy == Config_IpOnDemand && !skipDNSResolve {
 		ctx = routing_dns.ContextWithDNSClient(ctx, r.dns)
 	}
 
@@ -90,7 +96,7 @@ func (r *Router) pickRouteInternal(ctx routing.Context) (*Rule, routing.Context,
 		}
 	}
 
-	if r.domainStrategy != Config_IpIfNonMatch || len(ctx.GetTargetDomain()) == 0 {
+	if r.domainStrategy != Config_IpIfNonMatch || len(ctx.GetTargetDomain()) == 0 || skipDNSResolve {
 		return nil, ctx, common.ErrNoClue
 	}
 

app/router/router_test.go

@@ -7,9 +7,9 @@ import (
 	"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/dns"
 	"github.com/xtls/xray-core/features/outbound"
 	routing_session "github.com/xtls/xray-core/features/routing/session"
 	"github.com/xtls/xray-core/testing/mocks"
@@ -102,7 +102,7 @@ func TestIPOnDemand(t *testing.T) {
 				TargetTag: &RoutingRule_Tag{
 					Tag: "test",
 				},
-				Cidr: []*CIDR{
+				Cidr: []*geoip.CIDR{
 					{
 						Ip:     []byte{192, 168, 0, 0},
 						Prefix: 16,
@@ -116,11 +116,7 @@ func TestIPOnDemand(t *testing.T) {
 	defer mockCtl.Finish()
 
 	mockDNS := mocks.NewDNSClient(mockCtl)
-	mockDNS.EXPECT().LookupIP(gomock.Eq("example.com"), dns.IPOption{
-		IPv4Enable: true,
-		IPv6Enable: true,
-		FakeEnable: false,
-	}).Return([]net.IP{{192, 168, 0, 1}}, nil).AnyTimes()
+	mockDNS.EXPECT().LookupIP(gomock.Eq("example.com")).Return([]net.IP{{192, 168, 0, 1}}, nil).AnyTimes()
 
 	r := new(Router)
 	common.Must(r.Init(config, mockDNS, nil))
@@ -141,7 +137,7 @@ func TestIPIfNonMatchDomain(t *testing.T) {
 				TargetTag: &RoutingRule_Tag{
 					Tag: "test",
 				},
-				Cidr: []*CIDR{
+				Cidr: []*geoip.CIDR{
 					{
 						Ip:     []byte{192, 168, 0, 0},
 						Prefix: 16,
@@ -155,11 +151,7 @@ func TestIPIfNonMatchDomain(t *testing.T) {
 	defer mockCtl.Finish()
 
 	mockDNS := mocks.NewDNSClient(mockCtl)
-	mockDNS.EXPECT().LookupIP(gomock.Eq("example.com"), dns.IPOption{
-		IPv4Enable: true,
-		IPv6Enable: true,
-		FakeEnable: false,
-	}).Return([]net.IP{{192, 168, 0, 1}}, nil).AnyTimes()
+	mockDNS.EXPECT().LookupIP(gomock.Eq("example.com")).Return([]net.IP{{192, 168, 0, 1}}, nil).AnyTimes()
 
 	r := new(Router)
 	common.Must(r.Init(config, mockDNS, nil))
@@ -180,7 +172,7 @@ func TestIPIfNonMatchIP(t *testing.T) {
 				TargetTag: &RoutingRule_Tag{
 					Tag: "test",
 				},
-				Cidr: []*CIDR{
+				Cidr: []*geoip.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/strmatcher"
+	"github.com/xtls/xray-core/common/matcher/str"
 	"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 := strmatcher.Substr.New(request.Pattern)
+	matcher, err := str.Substr.New(request.Pattern)
 	if err != nil {
 		return nil, err
 	}

common/buf/buffer.go

@@ -38,7 +38,7 @@ func NewExisted(b []byte) *Buffer {
 
 	oLen := len(b)
 	if oLen < Size {
-		b = append(b, make([]byte, Size-oLen)...)
+		b = b[:Size]
 	}
 
 	return &Buffer{

common/matcher/domain/conf/conf.go

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

common/matcher/domain/conf/domain.go

@@ -0,0 +1,94 @@
+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

@@ -0,0 +1,9 @@
+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

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

common/matcher/domain/domain.pb.go

@@ -0,0 +1,229 @@
+// 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{
+	0x0a, 0x22, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2f, 0x6d, 0x61, 0x74, 0x63, 0x68, 0x65, 0x72,
+	0x2f, 0x64, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x2f, 0x64, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x2e, 0x70,
+	0x72, 0x6f, 0x74, 0x6f, 0x12, 0x1a, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x6f,
+	0x6e, 0x2e, 0x6d, 0x61, 0x74, 0x63, 0x68, 0x65, 0x72, 0x2e, 0x64, 0x6f, 0x6d, 0x61, 0x69, 0x6e,
+	0x22, 0x5c, 0x0a, 0x06, 0x44, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x12, 0x3c, 0x0a, 0x04, 0x74, 0x79,
+	0x70, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0e, 0x32, 0x28, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e,
+	0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x6d, 0x61, 0x74, 0x63, 0x68, 0x65, 0x72, 0x2e, 0x64,
+	0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x2e, 0x4d, 0x61, 0x74, 0x63, 0x68, 0x69, 0x6e, 0x67, 0x54, 0x79,
+	0x70, 0x65, 0x52, 0x04, 0x74, 0x79, 0x70, 0x65, 0x12, 0x14, 0x0a, 0x05, 0x76, 0x61, 0x6c, 0x75,
+	0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x2a, 0x3f,
+	0x0a, 0x0c, 0x4d, 0x61, 0x74, 0x63, 0x68, 0x69, 0x6e, 0x67, 0x54, 0x79, 0x70, 0x65, 0x12, 0x08,
+	0x0a, 0x04, 0x46, 0x75, 0x6c, 0x6c, 0x10, 0x00, 0x12, 0x0d, 0x0a, 0x09, 0x53, 0x75, 0x62, 0x64,
+	0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x10, 0x01, 0x12, 0x0b, 0x0a, 0x07, 0x4b, 0x65, 0x79, 0x77, 0x6f,
+	0x72, 0x64, 0x10, 0x02, 0x12, 0x09, 0x0a, 0x05, 0x52, 0x65, 0x67, 0x65, 0x78, 0x10, 0x03, 0x42,
+	0x70, 0x0a, 0x1e, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x6d,
+	0x6f, 0x6e, 0x2e, 0x6d, 0x61, 0x74, 0x63, 0x68, 0x65, 0x72, 0x2e, 0x64, 0x6f, 0x6d, 0x61, 0x69,
+	0x6e, 0x50, 0x01, 0x5a, 0x2f, 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, 0x63,
+	0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2f, 0x6d, 0x61, 0x74, 0x63, 0x68, 0x65, 0x72, 0x2f, 0x64, 0x6f,
+	0x6d, 0x61, 0x69, 0x6e, 0xaa, 0x02, 0x1a, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x43, 0x6f, 0x6d, 0x6d,
+	0x6f, 0x6e, 0x2e, 0x4d, 0x61, 0x74, 0x63, 0x68, 0x65, 0x72, 0x2e, 0x44, 0x6f, 0x6d, 0x61, 0x69,
+	0x6e, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+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

@@ -0,0 +1,39 @@
+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

@@ -0,0 +1,9 @@
+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

@@ -0,0 +1,79 @@
+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

@@ -0,0 +1,224 @@
+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)
+	}
+}

common/matcher/geoip/crid.go

@@ -0,0 +1,40 @@
+package geoip
+
+// 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]
+}

common/matcher/geoip/errors.generated.go

@@ -0,0 +1,9 @@
+package geoip
+
+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/geoip/geoip.go

@@ -1,4 +1,4 @@
-package router
+package geoip
 
 import (
 	"encoding/binary"
@@ -7,17 +7,24 @@ 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
-	ip4         []uint32
-	prefix4     []uint8
-	ip6         []ipv6
-	prefix6     []uint8
+	countryCode  string
+	reverseMatch bool
+	ip4          []uint32
+	prefix4      []uint8
+	ip6          []ipv6
+	prefix6      []uint8
+}
+
+func (m *GeoIPMatcher) SetReverseMatch(isReverseMatch bool) {
+	m.reverseMatch = isReverseMatch
 }
 
 func normalize4(ip uint32, prefix uint8) uint32 {
@@ -147,8 +154,17 @@ 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]),
@@ -168,14 +184,15 @@ 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 {
+			if m.countryCode == geoip.CountryCode && m.reverseMatch == geoip.ReverseMatch {
 				return m, nil
 			}
 		}
 	}
 
 	m := &GeoIPMatcher{
-		countryCode: geoip.CountryCode,
+		countryCode:  geoip.CountryCode,
+		reverseMatch: geoip.ReverseMatch,
 	}
 	if err := m.Init(geoip.Cidr); err != nil {
 		return nil, err
@@ -187,5 +204,5 @@ func (c *GeoIPMatcherContainer) Add(geoip *GeoIP) (*GeoIPMatcher, error) {
 }
 
 var (
-	globalGeoIPContainer GeoIPMatcherContainer
+	GlobalGeoIPContainer GeoIPMatcherContainer
 )

common/matcher/geoip/geoip.pb.go

@@ -0,0 +1,317 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.15.7
+// source: common/matcher/geoip/geoip.proto
+
+package geoip
+
+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
+
+// IP for routing decision, in CIDR form.
+type CIDR struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// IP address, should be either 4 or 16 bytes.
+	Ip []byte `protobuf:"bytes,1,opt,name=ip,proto3" json:"ip,omitempty"`
+	// Number of leading ones in the network mask.
+	Prefix uint32 `protobuf:"varint,2,opt,name=prefix,proto3" json:"prefix,omitempty"`
+}
+
+func (x *CIDR) Reset() {
+	*x = CIDR{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_common_matcher_geoip_geoip_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *CIDR) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*CIDR) ProtoMessage() {}
+
+func (x *CIDR) ProtoReflect() protoreflect.Message {
+	mi := &file_common_matcher_geoip_geoip_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 CIDR.ProtoReflect.Descriptor instead.
+func (*CIDR) Descriptor() ([]byte, []int) {
+	return file_common_matcher_geoip_geoip_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *CIDR) GetIp() []byte {
+	if x != nil {
+		return x.Ip
+	}
+	return nil
+}
+
+func (x *CIDR) GetPrefix() uint32 {
+	if x != nil {
+		return x.Prefix
+	}
+	return 0
+}
+
+type GeoIP struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	CountryCode  string  `protobuf:"bytes,1,opt,name=country_code,json=countryCode,proto3" json:"country_code,omitempty"`
+	Cidr         []*CIDR `protobuf:"bytes,2,rep,name=cidr,proto3" json:"cidr,omitempty"`
+	ReverseMatch bool    `protobuf:"varint,3,opt,name=reverse_match,json=reverseMatch,proto3" json:"reverse_match,omitempty"`
+}
+
+func (x *GeoIP) Reset() {
+	*x = GeoIP{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_common_matcher_geoip_geoip_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *GeoIP) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GeoIP) ProtoMessage() {}
+
+func (x *GeoIP) ProtoReflect() protoreflect.Message {
+	mi := &file_common_matcher_geoip_geoip_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 GeoIP.ProtoReflect.Descriptor instead.
+func (*GeoIP) Descriptor() ([]byte, []int) {
+	return file_common_matcher_geoip_geoip_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *GeoIP) GetCountryCode() string {
+	if x != nil {
+		return x.CountryCode
+	}
+	return ""
+}
+
+func (x *GeoIP) GetCidr() []*CIDR {
+	if x != nil {
+		return x.Cidr
+	}
+	return nil
+}
+
+func (x *GeoIP) GetReverseMatch() bool {
+	if x != nil {
+		return x.ReverseMatch
+	}
+	return false
+}
+
+type GeoIPList struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Entry []*GeoIP `protobuf:"bytes,1,rep,name=entry,proto3" json:"entry,omitempty"`
+}
+
+func (x *GeoIPList) Reset() {
+	*x = GeoIPList{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_common_matcher_geoip_geoip_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *GeoIPList) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GeoIPList) ProtoMessage() {}
+
+func (x *GeoIPList) ProtoReflect() protoreflect.Message {
+	mi := &file_common_matcher_geoip_geoip_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 GeoIPList.ProtoReflect.Descriptor instead.
+func (*GeoIPList) Descriptor() ([]byte, []int) {
+	return file_common_matcher_geoip_geoip_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *GeoIPList) GetEntry() []*GeoIP {
+	if x != nil {
+		return x.Entry
+	}
+	return nil
+}
+
+var File_common_matcher_geoip_geoip_proto protoreflect.FileDescriptor
+
+var file_common_matcher_geoip_geoip_proto_rawDesc = []byte{
+	0x0a, 0x20, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2f, 0x6d, 0x61, 0x74, 0x63, 0x68, 0x65, 0x72,
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+	0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72,
+	0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2f, 0x6d,
+	0x61, 0x74, 0x63, 0x68, 0x65, 0x72, 0x2f, 0x67, 0x65, 0x6f, 0x69, 0x70, 0xaa, 0x02, 0x19, 0x58,
+	0x72, 0x61, 0x79, 0x2e, 0x43, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x4d, 0x61, 0x74, 0x63, 0x68,
+	0x65, 0x72, 0x2e, 0x47, 0x65, 0x6f, 0x49, 0x50, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_common_matcher_geoip_geoip_proto_rawDescOnce sync.Once
+	file_common_matcher_geoip_geoip_proto_rawDescData = file_common_matcher_geoip_geoip_proto_rawDesc
+)
+
+func file_common_matcher_geoip_geoip_proto_rawDescGZIP() []byte {
+	file_common_matcher_geoip_geoip_proto_rawDescOnce.Do(func() {
+		file_common_matcher_geoip_geoip_proto_rawDescData = protoimpl.X.CompressGZIP(file_common_matcher_geoip_geoip_proto_rawDescData)
+	})
+	return file_common_matcher_geoip_geoip_proto_rawDescData
+}
+
+var file_common_matcher_geoip_geoip_proto_msgTypes = make([]protoimpl.MessageInfo, 3)
+var file_common_matcher_geoip_geoip_proto_goTypes = []interface{}{
+	(*CIDR)(nil),      // 0: xray.common.matcher.geoip.CIDR
+	(*GeoIP)(nil),     // 1: xray.common.matcher.geoip.GeoIP
+	(*GeoIPList)(nil), // 2: xray.common.matcher.geoip.GeoIPList
+}
+var file_common_matcher_geoip_geoip_proto_depIdxs = []int32{
+	0, // 0: xray.common.matcher.geoip.GeoIP.cidr:type_name -> xray.common.matcher.geoip.CIDR
+	1, // 1: xray.common.matcher.geoip.GeoIPList.entry:type_name -> xray.common.matcher.geoip.GeoIP
+	2, // [2:2] is the sub-list for method output_type
+	2, // [2:2] is the sub-list for method input_type
+	2, // [2:2] is the sub-list for extension type_name
+	2, // [2:2] is the sub-list for extension extendee
+	0, // [0:2] is the sub-list for field type_name
+}
+
+func init() { file_common_matcher_geoip_geoip_proto_init() }
+func file_common_matcher_geoip_geoip_proto_init() {
+	if File_common_matcher_geoip_geoip_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_common_matcher_geoip_geoip_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*CIDR); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_common_matcher_geoip_geoip_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*GeoIP); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_common_matcher_geoip_geoip_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*GeoIPList); 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_geoip_geoip_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   3,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_common_matcher_geoip_geoip_proto_goTypes,
+		DependencyIndexes: file_common_matcher_geoip_geoip_proto_depIdxs,
+		MessageInfos:      file_common_matcher_geoip_geoip_proto_msgTypes,
+	}.Build()
+	File_common_matcher_geoip_geoip_proto = out.File
+	file_common_matcher_geoip_geoip_proto_rawDesc = nil
+	file_common_matcher_geoip_geoip_proto_goTypes = nil
+	file_common_matcher_geoip_geoip_proto_depIdxs = nil
+}

common/matcher/geoip/geoip.proto

@@ -0,0 +1,26 @@
+syntax = "proto3";
+
+package xray.common.matcher.geoip;
+option csharp_namespace = "Xray.Common.Matcher.GeoIP";
+option go_package = "github.com/xtls/xray-core/common/matcher/geoip";
+option java_package = "com.xray.common.matcher.geoip";
+option java_multiple_files = true;
+
+// 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;
+  bool reverse_match =3;
+}
+
+message GeoIPList {
+  repeated GeoIP entry = 1;
+}

common/matcher/geoip/geoip_test.go

@@ -1,16 +1,16 @@
-package router_test
+package geoip_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() {
@@ -18,27 +18,47 @@ 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, "..", "..", "..", "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")))
 	}
 	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, "..", "..", "..", "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)
 	}
 }
 
 func TestGeoIPMatcherContainer(t *testing.T) {
-	container := &router.GeoIPMatcherContainer{}
+	container := &GeoIPMatcherContainer{}
 
-	m1, err := container.Add(&router.GeoIP{
+	m1, err := container.Add(&GeoIP{
 		CountryCode: "CN",
 	})
 	common.Must(err)
 
-	m2, err := container.Add(&router.GeoIP{
+	m2, err := container.Add(&GeoIP{
 		CountryCode: "US",
 	})
 	common.Must(err)
 
-	m3, err := container.Add(&router.GeoIP{
+	m3, err := container.Add(&GeoIP{
 		CountryCode: "CN",
 	})
 	common.Must(err)
@@ -53,7 +73,7 @@ func TestGeoIPMatcherContainer(t *testing.T) {
 }
 
 func TestGeoIPMatcher(t *testing.T) {
-	cidrList := router.CIDRList{
+	cidrList := 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},
@@ -70,7 +90,7 @@ func TestGeoIPMatcher(t *testing.T) {
 		{Ip: []byte{91, 108, 4, 0}, Prefix: 16},
 	}
 
-	matcher := &router.GeoIPMatcher{}
+	matcher := &GeoIPMatcher{}
 	common.Must(matcher.Init(cidrList))
 
 	testCases := []struct {
@@ -123,11 +143,47 @@ 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 := &router.GeoIPMatcher{}
+	matcher := &GeoIPMatcher{}
 	common.Must(matcher.Init(ips))
 
 	if matcher.Match([]byte{8, 8, 8, 8}) {
@@ -139,7 +195,7 @@ func TestGeoIPMatcher6US(t *testing.T) {
 	ips, err := loadGeoIP("US")
 	common.Must(err)
 
-	matcher := &router.GeoIPMatcher{}
+	matcher := &GeoIPMatcher{}
 	common.Must(matcher.Init(ips))
 
 	if !matcher.Match(net.ParseAddress("2001:4860:4860::8888").IP()) {
@@ -147,12 +203,12 @@ func TestGeoIPMatcher6US(t *testing.T) {
 	}
 }
 
-func loadGeoIP(country string) ([]*router.CIDR, error) {
+func loadGeoIP(country string) ([]*CIDR, error) {
 	geoipBytes, err := filesystem.ReadAsset("geoip.dat")
 	if err != nil {
 		return nil, err
 	}
-	var geoipList router.GeoIPList
+	var geoipList GeoIPList
 	if err := proto.Unmarshal(geoipBytes, &geoipList); err != nil {
 		return nil, err
 	}
@@ -170,7 +226,7 @@ func BenchmarkGeoIPMatcher4CN(b *testing.B) {
 	ips, err := loadGeoIP("CN")
 	common.Must(err)
 
-	matcher := &router.GeoIPMatcher{}
+	matcher := &GeoIPMatcher{}
 	common.Must(matcher.Init(ips))
 
 	b.ResetTimer()
@@ -184,7 +240,7 @@ func BenchmarkGeoIPMatcher6US(b *testing.B) {
 	ips, err := loadGeoIP("US")
 	common.Must(err)
 
-	matcher := &router.GeoIPMatcher{}
+	matcher := &GeoIPMatcher{}
 	common.Must(matcher.Init(ips))
 
 	b.ResetTimer()

common/matcher/geoip/matcher.go

@@ -0,0 +1,57 @@
+package geoip
+
+import (
+	"github.com/xtls/xray-core/common/net"
+	"github.com/xtls/xray-core/features/routing"
+)
+
+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
+}
+
+// MatchIP match given ip.
+func (m *MultiGeoIPMatcher) MatchIP(ip net.IP) bool {
+	for _, matcher := range m.matchers {
+		if matcher.Match(ip) {
+			return true
+		}
+	}
+	return false
+}

common/matcher/geosite/attribute.go

@@ -0,0 +1,35 @@
+package geosite
+
+import "strings"
+
+type AttributeList struct {
+	matcher []AttributeMatcher
+}
+
+func (al *AttributeList) Match(domain *Domain) bool {
+	for _, matcher := range al.matcher {
+		if !matcher.Match(domain) {
+			return false
+		}
+	}
+	return true
+}
+
+func (al *AttributeList) IsEmpty() bool {
+	return len(al.matcher) == 0
+}
+
+type AttributeMatcher interface {
+	Match(*Domain) bool
+}
+
+type BooleanMatcher string
+
+func (m BooleanMatcher) Match(domain *Domain) bool {
+	for _, attr := range domain.Attribute {
+		if strings.EqualFold(attr.GetKey(), string(m)) {
+			return true
+		}
+	}
+	return false
+}

common/matcher/geosite/conf.go

@@ -0,0 +1,42 @@
+package geosite
+
+import (
+	"strings"
+
+	dm "github.com/xtls/xray-core/common/matcher/domain"
+)
+
+func LoadGeositeWithAttr(file string, siteWithAttr string) ([]*dm.Domain, error) {
+	parts := strings.Split(siteWithAttr, "@")
+	if len(parts) == 0 {
+		return nil, newError("empty site")
+	}
+	country := strings.ToUpper(parts[0])
+	attrs := parseAttrs(parts[1:])
+	domains, err := loadSite(file, country)
+	if err != nil {
+		return nil, err
+	}
+
+	if attrs.IsEmpty() {
+		return ToDomains(domains), nil
+	}
+
+	filteredDomains := make([]*dm.Domain, 0, len(domains))
+	for _, domain := range domains {
+		if attrs.Match(domain) {
+			filteredDomains = append(filteredDomains, domain.ToDomain())
+		}
+	}
+
+	return filteredDomains, nil
+}
+
+func parseAttrs(attrs []string) *AttributeList {
+	al := new(AttributeList)
+	for _, attr := range attrs {
+		lc := strings.ToLower(attr)
+		al.matcher = append(al.matcher, BooleanMatcher(lc))
+	}
+	return al
+}

common/matcher/geosite/errors.generated.go

@@ -0,0 +1,9 @@
+package geosite
+
+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/geosite/file.go

@@ -0,0 +1,86 @@
+package geosite
+
+import (
+	"runtime"
+
+	"github.com/golang/protobuf/proto"
+	"github.com/xtls/xray-core/common/platform/filesystem"
+)
+
+var (
+	SiteCache = make(map[string]*GeoSite)
+	FileCache = make(map[string][]byte)
+)
+
+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 loadSite(file, code string) ([]*Domain, error) {
+	index := file + ":" + code
+	if SiteCache[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("list not found in ", file, ": ", code)
+		}
+		var ges GeoSite
+		if err := proto.Unmarshal(bs, &ges); err != nil {
+			return nil, newError("error unmarshal Site in ", file, ": ", code).Base(err)
+		}
+		defer runtime.GC()     // or debug.FreeOSMemory()
+		return ges.Domain, nil // do not cache geosite
+		SiteCache[index] = &ges
+	}
+	return SiteCache[index].Domain, 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:]
+	}
+}

common/matcher/geosite/geosite.go

@@ -0,0 +1,33 @@
+package geosite
+
+import "github.com/xtls/xray-core/common/matcher/domain"
+
+//go:generate go run github.com/xtls/xray-core/common/errors/errorgen
+
+func ToDomains(dms []*Domain) []*domain.Domain {
+	dm := make([]*domain.Domain, len(dms))
+
+	for idx, entry := range dms {
+		dm[idx] = entry.ToDomain()
+	}
+
+	return dm
+}
+
+func (d *Domain) ToDomain() *domain.Domain {
+	return &domain.Domain{Type: d.Type.ToMatchingType(), Value: d.Value}
+}
+
+func (t Domain_Type) ToMatchingType() domain.MatchingType {
+	switch t {
+	case Domain_Plain:
+		return domain.MatchingType_Keyword
+	case Domain_Regex:
+		return domain.MatchingType_Regex
+	case Domain_Domain:
+		return domain.MatchingType_Subdomain
+	case Domain_Full:
+		return domain.MatchingType_Full
+	}
+	panic("impossible")
+}

common/matcher/geosite/geosite.pb.go

@@ -0,0 +1,501 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.15.6
+// source: common/matcher/geosite/geosite.proto
+
+package geosite
+
+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 Domain_Type int32
+
+const (
+	// The value is used as is.
+	Domain_Plain Domain_Type = 0
+	// The value is used as a regular expression.
+	Domain_Regex Domain_Type = 1
+	// The value is a root domain.
+	Domain_Domain Domain_Type = 2
+	// The value is a domain.
+	Domain_Full Domain_Type = 3
+)
+
+// Enum value maps for Domain_Type.
+var (
+	Domain_Type_name = map[int32]string{
+		0: "Plain",
+		1: "Regex",
+		2: "Domain",
+		3: "Full",
+	}
+	Domain_Type_value = map[string]int32{
+		"Plain":  0,
+		"Regex":  1,
+		"Domain": 2,
+		"Full":   3,
+	}
+)
+
+func (x Domain_Type) Enum() *Domain_Type {
+	p := new(Domain_Type)
+	*p = x
+	return p
+}
+
+func (x Domain_Type) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (Domain_Type) Descriptor() protoreflect.EnumDescriptor {
+	return file_common_matcher_geosite_geosite_proto_enumTypes[0].Descriptor()
+}
+
+func (Domain_Type) Type() protoreflect.EnumType {
+	return &file_common_matcher_geosite_geosite_proto_enumTypes[0]
+}
+
+func (x Domain_Type) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Use Domain_Type.Descriptor instead.
+func (Domain_Type) EnumDescriptor() ([]byte, []int) {
+	return file_common_matcher_geosite_geosite_proto_rawDescGZIP(), []int{0, 0}
+}
+
+type Domain struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// Domain matching type.
+	Type Domain_Type `protobuf:"varint,1,opt,name=type,proto3,enum=xray.common.matcher.geosite.Domain_Type" json:"type,omitempty"`
+	// Domain value.
+	Value string `protobuf:"bytes,2,opt,name=value,proto3" json:"value,omitempty"`
+	// Attributes of this domain. May be used for filtering.
+	Attribute []*Domain_Attribute `protobuf:"bytes,3,rep,name=attribute,proto3" json:"attribute,omitempty"`
+}
+
+func (x *Domain) Reset() {
+	*x = Domain{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_common_matcher_geosite_geosite_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_geosite_geosite_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_geosite_geosite_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *Domain) GetType() Domain_Type {
+	if x != nil {
+		return x.Type
+	}
+	return Domain_Plain
+}
+
+func (x *Domain) GetValue() string {
+	if x != nil {
+		return x.Value
+	}
+	return ""
+}
+
+func (x *Domain) GetAttribute() []*Domain_Attribute {
+	if x != nil {
+		return x.Attribute
+	}
+	return nil
+}
+
+type GeoSite struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	CountryCode string    `protobuf:"bytes,1,opt,name=country_code,json=countryCode,proto3" json:"country_code,omitempty"`
+	Domain      []*Domain `protobuf:"bytes,2,rep,name=domain,proto3" json:"domain,omitempty"`
+}
+
+func (x *GeoSite) Reset() {
+	*x = GeoSite{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_common_matcher_geosite_geosite_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *GeoSite) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GeoSite) ProtoMessage() {}
+
+func (x *GeoSite) ProtoReflect() protoreflect.Message {
+	mi := &file_common_matcher_geosite_geosite_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 GeoSite.ProtoReflect.Descriptor instead.
+func (*GeoSite) Descriptor() ([]byte, []int) {
+	return file_common_matcher_geosite_geosite_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *GeoSite) GetCountryCode() string {
+	if x != nil {
+		return x.CountryCode
+	}
+	return ""
+}
+
+func (x *GeoSite) GetDomain() []*Domain {
+	if x != nil {
+		return x.Domain
+	}
+	return nil
+}
+
+type GeoSiteList struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Entry []*GeoSite `protobuf:"bytes,1,rep,name=entry,proto3" json:"entry,omitempty"`
+}
+
+func (x *GeoSiteList) Reset() {
+	*x = GeoSiteList{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_common_matcher_geosite_geosite_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *GeoSiteList) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GeoSiteList) ProtoMessage() {}
+
+func (x *GeoSiteList) ProtoReflect() protoreflect.Message {
+	mi := &file_common_matcher_geosite_geosite_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 GeoSiteList.ProtoReflect.Descriptor instead.
+func (*GeoSiteList) Descriptor() ([]byte, []int) {
+	return file_common_matcher_geosite_geosite_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *GeoSiteList) GetEntry() []*GeoSite {
+	if x != nil {
+		return x.Entry
+	}
+	return nil
+}
+
+type Domain_Attribute struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Key string `protobuf:"bytes,1,opt,name=key,proto3" json:"key,omitempty"`
+	// Types that are assignable to TypedValue:
+	//	*Domain_Attribute_BoolValue
+	//	*Domain_Attribute_IntValue
+	TypedValue isDomain_Attribute_TypedValue `protobuf_oneof:"typed_value"`
+}
+
+func (x *Domain_Attribute) Reset() {
+	*x = Domain_Attribute{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_common_matcher_geosite_geosite_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Domain_Attribute) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Domain_Attribute) ProtoMessage() {}
+
+func (x *Domain_Attribute) ProtoReflect() protoreflect.Message {
+	mi := &file_common_matcher_geosite_geosite_proto_msgTypes[3]
+	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_Attribute.ProtoReflect.Descriptor instead.
+func (*Domain_Attribute) Descriptor() ([]byte, []int) {
+	return file_common_matcher_geosite_geosite_proto_rawDescGZIP(), []int{0, 0}
+}
+
+func (x *Domain_Attribute) GetKey() string {
+	if x != nil {
+		return x.Key
+	}
+	return ""
+}
+
+func (m *Domain_Attribute) GetTypedValue() isDomain_Attribute_TypedValue {
+	if m != nil {
+		return m.TypedValue
+	}
+	return nil
+}
+
+func (x *Domain_Attribute) GetBoolValue() bool {
+	if x, ok := x.GetTypedValue().(*Domain_Attribute_BoolValue); ok {
+		return x.BoolValue
+	}
+	return false
+}
+
+func (x *Domain_Attribute) GetIntValue() int64 {
+	if x, ok := x.GetTypedValue().(*Domain_Attribute_IntValue); ok {
+		return x.IntValue
+	}
+	return 0
+}
+
+type isDomain_Attribute_TypedValue interface {
+	isDomain_Attribute_TypedValue()
+}
+
+type Domain_Attribute_BoolValue struct {
+	BoolValue bool `protobuf:"varint,2,opt,name=bool_value,json=boolValue,proto3,oneof"`
+}
+
+type Domain_Attribute_IntValue struct {
+	IntValue int64 `protobuf:"varint,3,opt,name=int_value,json=intValue,proto3,oneof"`
+}
+
+func (*Domain_Attribute_BoolValue) isDomain_Attribute_TypedValue() {}
+
+func (*Domain_Attribute_IntValue) isDomain_Attribute_TypedValue() {}
+
+var File_common_matcher_geosite_geosite_proto protoreflect.FileDescriptor
+
+var file_common_matcher_geosite_geosite_proto_rawDesc = []byte{
+	0x0a, 0x24, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2f, 0x6d, 0x61, 0x74, 0x63, 0x68, 0x65, 0x72,
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+	0x63, 0x68, 0x65, 0x72, 0x2e, 0x47, 0x65, 0x6f, 0x53, 0x69, 0x74, 0x65, 0x62, 0x06, 0x70, 0x72,
+	0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_common_matcher_geosite_geosite_proto_rawDescOnce sync.Once
+	file_common_matcher_geosite_geosite_proto_rawDescData = file_common_matcher_geosite_geosite_proto_rawDesc
+)
+
+func file_common_matcher_geosite_geosite_proto_rawDescGZIP() []byte {
+	file_common_matcher_geosite_geosite_proto_rawDescOnce.Do(func() {
+		file_common_matcher_geosite_geosite_proto_rawDescData = protoimpl.X.CompressGZIP(file_common_matcher_geosite_geosite_proto_rawDescData)
+	})
+	return file_common_matcher_geosite_geosite_proto_rawDescData
+}
+
+var file_common_matcher_geosite_geosite_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
+var file_common_matcher_geosite_geosite_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
+var file_common_matcher_geosite_geosite_proto_goTypes = []interface{}{
+	(Domain_Type)(0),         // 0: xray.common.matcher.geosite.Domain.Type
+	(*Domain)(nil),           // 1: xray.common.matcher.geosite.Domain
+	(*GeoSite)(nil),          // 2: xray.common.matcher.geosite.GeoSite
+	(*GeoSiteList)(nil),      // 3: xray.common.matcher.geosite.GeoSiteList
+	(*Domain_Attribute)(nil), // 4: xray.common.matcher.geosite.Domain.Attribute
+}
+var file_common_matcher_geosite_geosite_proto_depIdxs = []int32{
+	0, // 0: xray.common.matcher.geosite.Domain.type:type_name -> xray.common.matcher.geosite.Domain.Type
+	4, // 1: xray.common.matcher.geosite.Domain.attribute:type_name -> xray.common.matcher.geosite.Domain.Attribute
+	1, // 2: xray.common.matcher.geosite.GeoSite.domain:type_name -> xray.common.matcher.geosite.Domain
+	2, // 3: xray.common.matcher.geosite.GeoSiteList.entry:type_name -> xray.common.matcher.geosite.GeoSite
+	4, // [4:4] is the sub-list for method output_type
+	4, // [4:4] is the sub-list for method input_type
+	4, // [4:4] is the sub-list for extension type_name
+	4, // [4:4] is the sub-list for extension extendee
+	0, // [0:4] is the sub-list for field type_name
+}
+
+func init() { file_common_matcher_geosite_geosite_proto_init() }
+func file_common_matcher_geosite_geosite_proto_init() {
+	if File_common_matcher_geosite_geosite_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_common_matcher_geosite_geosite_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
+			}
+		}
+		file_common_matcher_geosite_geosite_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*GeoSite); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_common_matcher_geosite_geosite_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*GeoSiteList); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_common_matcher_geosite_geosite_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Domain_Attribute); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	file_common_matcher_geosite_geosite_proto_msgTypes[3].OneofWrappers = []interface{}{
+		(*Domain_Attribute_BoolValue)(nil),
+		(*Domain_Attribute_IntValue)(nil),
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_common_matcher_geosite_geosite_proto_rawDesc,
+			NumEnums:      1,
+			NumMessages:   4,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_common_matcher_geosite_geosite_proto_goTypes,
+		DependencyIndexes: file_common_matcher_geosite_geosite_proto_depIdxs,
+		EnumInfos:         file_common_matcher_geosite_geosite_proto_enumTypes,
+		MessageInfos:      file_common_matcher_geosite_geosite_proto_msgTypes,
+	}.Build()
+	File_common_matcher_geosite_geosite_proto = out.File
+	file_common_matcher_geosite_geosite_proto_rawDesc = nil
+	file_common_matcher_geosite_geosite_proto_goTypes = nil
+	file_common_matcher_geosite_geosite_proto_depIdxs = nil
+}

common/matcher/geosite/geosite.proto

@@ -0,0 +1,46 @@
+syntax = "proto3";
+
+package xray.common.matcher.geosite;
+option csharp_namespace = "Xray.Common.Matcher.GeoSite";
+option go_package = "github.com/xtls/xray-core/common/matcher/geosite";
+option java_package = "com.xray.common.matcher.geosite";
+option java_multiple_files = true;
+
+message Domain {
+  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;
+}
+
+message GeoSite {
+  string country_code = 1;
+  repeated Domain domain = 2;
+}
+
+message GeoSiteList {
+  repeated GeoSite entry = 1;
+}

common/matcher/str/ac_automaton_matcher.go

@@ -0,0 +1,243 @@
+package str
+
+import (
+	"container/list"
+)
+
+const validCharCount = 53
+
+type MatchType struct {
+	matchType Type
+	exist     bool
+}
+
+const (
+	TrieEdge bool = true
+	FailEdge bool = false
+)
+
+type Edge struct {
+	edgeType bool
+	nextNode int
+}
+
+type ACAutomaton struct {
+	trie   [][validCharCount]Edge
+	fail   []int
+	exists []MatchType
+	count  int
+}
+
+func newNode() [validCharCount]Edge {
+	var s [validCharCount]Edge
+	for i := range s {
+		s[i] = Edge{
+			edgeType: FailEdge,
+			nextNode: 0,
+		}
+	}
+	return s
+}
+
+var char2Index = []int{
+	'A':  0,
+	'a':  0,
+	'B':  1,
+	'b':  1,
+	'C':  2,
+	'c':  2,
+	'D':  3,
+	'd':  3,
+	'E':  4,
+	'e':  4,
+	'F':  5,
+	'f':  5,
+	'G':  6,
+	'g':  6,
+	'H':  7,
+	'h':  7,
+	'I':  8,
+	'i':  8,
+	'J':  9,
+	'j':  9,
+	'K':  10,
+	'k':  10,
+	'L':  11,
+	'l':  11,
+	'M':  12,
+	'm':  12,
+	'N':  13,
+	'n':  13,
+	'O':  14,
+	'o':  14,
+	'P':  15,
+	'p':  15,
+	'Q':  16,
+	'q':  16,
+	'R':  17,
+	'r':  17,
+	'S':  18,
+	's':  18,
+	'T':  19,
+	't':  19,
+	'U':  20,
+	'u':  20,
+	'V':  21,
+	'v':  21,
+	'W':  22,
+	'w':  22,
+	'X':  23,
+	'x':  23,
+	'Y':  24,
+	'y':  24,
+	'Z':  25,
+	'z':  25,
+	'!':  26,
+	'$':  27,
+	'&':  28,
+	'\'': 29,
+	'(':  30,
+	')':  31,
+	'*':  32,
+	'+':  33,
+	',':  34,
+	';':  35,
+	'=':  36,
+	':':  37,
+	'%':  38,
+	'-':  39,
+	'.':  40,
+	'_':  41,
+	'~':  42,
+	'0':  43,
+	'1':  44,
+	'2':  45,
+	'3':  46,
+	'4':  47,
+	'5':  48,
+	'6':  49,
+	'7':  50,
+	'8':  51,
+	'9':  52,
+}
+
+func NewACAutomaton() *ACAutomaton {
+	var ac = new(ACAutomaton)
+	ac.trie = append(ac.trie, newNode())
+	ac.fail = append(ac.fail, 0)
+	ac.exists = append(ac.exists, MatchType{
+		matchType: Full,
+		exist:     false,
+	})
+	return ac
+}
+
+func (ac *ACAutomaton) Add(domain string, t Type) {
+	var node = 0
+	for i := len(domain) - 1; i >= 0; i-- {
+		var idx = char2Index[domain[i]]
+		if ac.trie[node][idx].nextNode == 0 {
+			ac.count++
+			if len(ac.trie) < ac.count+1 {
+				ac.trie = append(ac.trie, newNode())
+				ac.fail = append(ac.fail, 0)
+				ac.exists = append(ac.exists, MatchType{
+					matchType: Full,
+					exist:     false,
+				})
+			}
+			ac.trie[node][idx] = Edge{
+				edgeType: TrieEdge,
+				nextNode: ac.count,
+			}
+		}
+		node = ac.trie[node][idx].nextNode
+	}
+	ac.exists[node] = MatchType{
+		matchType: t,
+		exist:     true,
+	}
+	switch t {
+	case Domain:
+		ac.exists[node] = MatchType{
+			matchType: Full,
+			exist:     true,
+		}
+		var idx = char2Index['.']
+		if ac.trie[node][idx].nextNode == 0 {
+			ac.count++
+			if len(ac.trie) < ac.count+1 {
+				ac.trie = append(ac.trie, newNode())
+				ac.fail = append(ac.fail, 0)
+				ac.exists = append(ac.exists, MatchType{
+					matchType: Full,
+					exist:     false,
+				})
+			}
+			ac.trie[node][idx] = Edge{
+				edgeType: TrieEdge,
+				nextNode: ac.count,
+			}
+		}
+		node = ac.trie[node][idx].nextNode
+		ac.exists[node] = MatchType{
+			matchType: t,
+			exist:     true,
+		}
+	default:
+		break
+	}
+}
+
+func (ac *ACAutomaton) Build() {
+	var queue = list.New()
+	for i := 0; i < validCharCount; i++ {
+		if ac.trie[0][i].nextNode != 0 {
+			queue.PushBack(ac.trie[0][i])
+		}
+	}
+	for {
+		var front = queue.Front()
+		if front == nil {
+			break
+		} else {
+			var node = front.Value.(Edge).nextNode
+			queue.Remove(front)
+			for i := 0; i < validCharCount; i++ {
+				if ac.trie[node][i].nextNode != 0 {
+					ac.fail[ac.trie[node][i].nextNode] = ac.trie[ac.fail[node]][i].nextNode
+					queue.PushBack(ac.trie[node][i])
+				} else {
+					ac.trie[node][i] = Edge{
+						edgeType: FailEdge,
+						nextNode: ac.trie[ac.fail[node]][i].nextNode,
+					}
+				}
+			}
+		}
+	}
+}
+
+func (ac *ACAutomaton) Match(s string) bool {
+	var node = 0
+	var fullMatch = true
+	// 1. the match string is all through trie edge. FULL MATCH or DOMAIN
+	// 2. the match string is through a fail edge. NOT FULL MATCH
+	// 2.1 Through a fail edge, but there exists a valid node. SUBSTR
+	for i := len(s) - 1; i >= 0; i-- {
+		var idx = char2Index[s[i]]
+		fullMatch = fullMatch && ac.trie[node][idx].edgeType
+		node = ac.trie[node][idx].nextNode
+		switch ac.exists[node].matchType {
+		case Substr:
+			return true
+		case Domain:
+			if fullMatch {
+				return true
+			}
+		default:
+			break
+		}
+	}
+	return fullMatch && ac.exists[node].exist
+}

common/matcher/str/benchmark_test.go

@@ -1,13 +1,26 @@
-package strmatcher_test
+package str_test
 
 import (
 	"strconv"
 	"testing"
 
 	"github.com/xtls/xray-core/common"
-	. "github.com/xtls/xray-core/common/strmatcher"
+	. "github.com/xtls/xray-core/common/matcher/str"
 )
 
+func BenchmarkACAutomaton(b *testing.B) {
+	ac := NewACAutomaton()
+	for i := 1; i <= 1024; i++ {
+		ac.Add(strconv.Itoa(i)+".xray.com", Domain)
+	}
+	ac.Build()
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		_ = ac.Match("0.xray.com")
+	}
+}
+
 func BenchmarkDomainMatcherGroup(b *testing.B) {
 	g := new(DomainMatcherGroup)
 

common/matcher/str/domain_matcher.go

@@ -1,4 +1,4 @@
-package strmatcher
+package str
 
 import "strings"
 

common/matcher/str/domain_matcher_test.go

@@ -1,10 +1,10 @@
-package strmatcher_test
+package str_test
 
 import (
 	"reflect"
 	"testing"
 
-	. "github.com/xtls/xray-core/common/strmatcher"
+	. "github.com/xtls/xray-core/common/matcher/str"
 )
 
 func TestDomainMatcherGroup(t *testing.T) {

common/matcher/str/full_matcher.go

@@ -1,4 +1,4 @@
-package strmatcher
+package str
 
 type FullMatcherGroup struct {
 	matchers map[string][]uint32

common/matcher/str/full_matcher_test.go

@@ -1,10 +1,10 @@
-package strmatcher_test
+package str_test
 
 import (
 	"reflect"
 	"testing"
 
-	. "github.com/xtls/xray-core/common/strmatcher"
+	. "github.com/xtls/xray-core/common/matcher/str"
 )
 
 func TestFullMatcherGroup(t *testing.T) {

common/matcher/str/matchers.go

@@ -1,4 +1,4 @@
-package strmatcher
+package str
 
 import (
 	"regexp"

common/matcher/str/matchers_test.go

@@ -1,10 +1,10 @@
-package strmatcher_test
+package str_test
 
 import (
 	"testing"
 
 	"github.com/xtls/xray-core/common"
-	. "github.com/xtls/xray-core/common/strmatcher"
+	. "github.com/xtls/xray-core/common/matcher/str"
 )
 
 func TestMatcher(t *testing.T) {

common/matcher/str/mph_matcher.go

@@ -0,0 +1,301 @@
+package str
+
+import (
+	"math/bits"
+	"regexp"
+	"sort"
+	"strings"
+	"unsafe"
+)
+
+// PrimeRK is the prime base used in Rabin-Karp algorithm.
+const PrimeRK = 16777619
+
+// calculate the rolling murmurHash of given string
+func RollingHash(s string) uint32 {
+	h := uint32(0)
+	for i := len(s) - 1; i >= 0; i-- {
+		h = h*PrimeRK + uint32(s[i])
+	}
+	return h
+}
+
+// A MphMatcherGroup is divided into three parts:
+// 1. `full` and `domain` patterns are matched by Rabin-Karp algorithm and minimal perfect hash table;
+// 2. `substr` patterns are matched by ac automaton;
+// 3. `regex` patterns are matched with the regex library.
+type MphMatcherGroup struct {
+	ac            *ACAutomaton
+	otherMatchers []matcherEntry
+	rules         []string
+	level0        []uint32
+	level0Mask    int
+	level1        []uint32
+	level1Mask    int
+	count         uint32
+	ruleMap       *map[string]uint32
+}
+
+func (g *MphMatcherGroup) AddFullOrDomainPattern(pattern string, t Type) {
+	h := RollingHash(pattern)
+	switch t {
+	case Domain:
+		(*g.ruleMap)["."+pattern] = h*PrimeRK + uint32('.')
+		fallthrough
+	case Full:
+		(*g.ruleMap)[pattern] = h
+	default:
+	}
+}
+
+func NewMphMatcherGroup() *MphMatcherGroup {
+	return &MphMatcherGroup{
+		ac:            nil,
+		otherMatchers: nil,
+		rules:         nil,
+		level0:        nil,
+		level0Mask:    0,
+		level1:        nil,
+		level1Mask:    0,
+		count:         1,
+		ruleMap:       &map[string]uint32{},
+	}
+}
+
+// AddPattern adds a pattern to MphMatcherGroup
+func (g *MphMatcherGroup) AddPattern(pattern string, t Type) (uint32, error) {
+	switch t {
+	case Substr:
+		if g.ac == nil {
+			g.ac = NewACAutomaton()
+		}
+		g.ac.Add(pattern, t)
+	case Full, Domain:
+		pattern = strings.ToLower(pattern)
+		g.AddFullOrDomainPattern(pattern, t)
+	case Regex:
+		r, err := regexp.Compile(pattern)
+		if err != nil {
+			return 0, err
+		}
+		g.otherMatchers = append(g.otherMatchers, matcherEntry{
+			m:  &regexMatcher{pattern: r},
+			id: g.count,
+		})
+	default:
+		panic("Unknown type")
+	}
+	return g.count, nil
+}
+
+// Build builds a minimal perfect hash table and ac automaton from insert rules
+func (g *MphMatcherGroup) Build() {
+	if g.ac != nil {
+		g.ac.Build()
+	}
+	keyLen := len(*g.ruleMap)
+	if keyLen == 0 {
+		keyLen = 1
+		(*g.ruleMap)["empty___"] = RollingHash("empty___")
+	}
+	g.level0 = make([]uint32, nextPow2(keyLen/4))
+	g.level0Mask = len(g.level0) - 1
+	g.level1 = make([]uint32, nextPow2(keyLen))
+	g.level1Mask = len(g.level1) - 1
+	var sparseBuckets = make([][]int, len(g.level0))
+	var ruleIdx int
+	for rule, hash := range *g.ruleMap {
+		n := int(hash) & g.level0Mask
+		g.rules = append(g.rules, rule)
+		sparseBuckets[n] = append(sparseBuckets[n], ruleIdx)
+		ruleIdx++
+	}
+	g.ruleMap = nil
+	var buckets []indexBucket
+	for n, vals := range sparseBuckets {
+		if len(vals) > 0 {
+			buckets = append(buckets, indexBucket{n, vals})
+		}
+	}
+	sort.Sort(bySize(buckets))
+
+	occ := make([]bool, len(g.level1))
+	var tmpOcc []int
+	for _, bucket := range buckets {
+		var seed = uint32(0)
+		for {
+			findSeed := true
+			tmpOcc = tmpOcc[:0]
+			for _, i := range bucket.vals {
+				n := int(strhashFallback(unsafe.Pointer(&g.rules[i]), uintptr(seed))) & g.level1Mask
+				if occ[n] {
+					for _, n := range tmpOcc {
+						occ[n] = false
+					}
+					seed++
+					findSeed = false
+					break
+				}
+				occ[n] = true
+				tmpOcc = append(tmpOcc, n)
+				g.level1[n] = uint32(i)
+			}
+			if findSeed {
+				g.level0[bucket.n] = seed
+				break
+			}
+		}
+	}
+}
+
+func nextPow2(v int) int {
+	if v <= 1 {
+		return 1
+	}
+	const MaxUInt = ^uint(0)
+	n := (MaxUInt >> bits.LeadingZeros(uint(v))) + 1
+	return int(n)
+}
+
+// Lookup searches for s in t and returns its index and whether it was found.
+func (g *MphMatcherGroup) Lookup(h uint32, s string) bool {
+	i0 := int(h) & g.level0Mask
+	seed := g.level0[i0]
+	i1 := int(strhashFallback(unsafe.Pointer(&s), uintptr(seed))) & g.level1Mask
+	n := g.level1[i1]
+	return s == g.rules[int(n)]
+}
+
+// Match implements IndexMatcher.Match.
+func (g *MphMatcherGroup) Match(pattern string) []uint32 {
+	result := []uint32{}
+	hash := uint32(0)
+	for i := len(pattern) - 1; i >= 0; i-- {
+		hash = hash*PrimeRK + uint32(pattern[i])
+		if pattern[i] == '.' {
+			if g.Lookup(hash, pattern[i:]) {
+				result = append(result, 1)
+				return result
+			}
+		}
+	}
+	if g.Lookup(hash, pattern) {
+		result = append(result, 1)
+		return result
+	}
+	if g.ac != nil && g.ac.Match(pattern) {
+		result = append(result, 1)
+		return result
+	}
+	for _, e := range g.otherMatchers {
+		if e.m.Match(pattern) {
+			result = append(result, e.id)
+			return result
+		}
+	}
+	return nil
+}
+
+type indexBucket struct {
+	n    int
+	vals []int
+}
+
+type bySize []indexBucket
+
+func (s bySize) Len() int           { return len(s) }
+func (s bySize) Less(i, j int) bool { return len(s[i].vals) > len(s[j].vals) }
+func (s bySize) Swap(i, j int)      { s[i], s[j] = s[j], s[i] }
+
+type stringStruct struct {
+	str unsafe.Pointer
+	len int
+}
+
+func strhashFallback(a unsafe.Pointer, h uintptr) uintptr {
+	x := (*stringStruct)(a)
+	return memhashFallback(x.str, h, uintptr(x.len))
+}
+
+const (
+	// Constants for multiplication: four random odd 64-bit numbers.
+	m1 = 16877499708836156737
+	m2 = 2820277070424839065
+	m3 = 9497967016996688599
+	m4 = 15839092249703872147
+)
+
+var hashkey = [4]uintptr{1, 1, 1, 1}
+
+func memhashFallback(p unsafe.Pointer, seed, s uintptr) uintptr {
+	h := uint64(seed + s*hashkey[0])
+tail:
+	switch {
+	case s == 0:
+	case s < 4:
+		h ^= uint64(*(*byte)(p))
+		h ^= uint64(*(*byte)(add(p, s>>1))) << 8
+		h ^= uint64(*(*byte)(add(p, s-1))) << 16
+		h = rotl31(h*m1) * m2
+	case s <= 8:
+		h ^= uint64(readUnaligned32(p))
+		h ^= uint64(readUnaligned32(add(p, s-4))) << 32
+		h = rotl31(h*m1) * m2
+	case s <= 16:
+		h ^= readUnaligned64(p)
+		h = rotl31(h*m1) * m2
+		h ^= readUnaligned64(add(p, s-8))
+		h = rotl31(h*m1) * m2
+	case s <= 32:
+		h ^= readUnaligned64(p)
+		h = rotl31(h*m1) * m2
+		h ^= readUnaligned64(add(p, 8))
+		h = rotl31(h*m1) * m2
+		h ^= readUnaligned64(add(p, s-16))
+		h = rotl31(h*m1) * m2
+		h ^= readUnaligned64(add(p, s-8))
+		h = rotl31(h*m1) * m2
+	default:
+		v1 := h
+		v2 := uint64(seed * hashkey[1])
+		v3 := uint64(seed * hashkey[2])
+		v4 := uint64(seed * hashkey[3])
+		for s >= 32 {
+			v1 ^= readUnaligned64(p)
+			v1 = rotl31(v1*m1) * m2
+			p = add(p, 8)
+			v2 ^= readUnaligned64(p)
+			v2 = rotl31(v2*m2) * m3
+			p = add(p, 8)
+			v3 ^= readUnaligned64(p)
+			v3 = rotl31(v3*m3) * m4
+			p = add(p, 8)
+			v4 ^= readUnaligned64(p)
+			v4 = rotl31(v4*m4) * m1
+			p = add(p, 8)
+			s -= 32
+		}
+		h = v1 ^ v2 ^ v3 ^ v4
+		goto tail
+	}
+
+	h ^= h >> 29
+	h *= m3
+	h ^= h >> 32
+	return uintptr(h)
+}
+func add(p unsafe.Pointer, x uintptr) unsafe.Pointer {
+	return unsafe.Pointer(uintptr(p) + x)
+}
+func readUnaligned32(p unsafe.Pointer) uint32 {
+	q := (*[4]byte)(p)
+	return uint32(q[0]) | uint32(q[1])<<8 | uint32(q[2])<<16 | uint32(q[3])<<24
+}
+
+func rotl31(x uint64) uint64 {
+	return (x << 31) | (x >> (64 - 31))
+}
+func readUnaligned64(p unsafe.Pointer) uint64 {
+	q := (*[8]byte)(p)
+	return uint64(q[0]) | uint64(q[1])<<8 | uint64(q[2])<<16 | uint64(q[3])<<24 | uint64(q[4])<<32 | uint64(q[5])<<40 | uint64(q[6])<<48 | uint64(q[7])<<56
+}

common/matcher/str/strmatcher.go

@@ -1,4 +1,4 @@
-package strmatcher
+package str
 
 import (
 	"regexp"
@@ -27,6 +27,7 @@ const (
 
 // New creates a new Matcher based on the given pattern.
 func (t Type) New(pattern string) (Matcher, error) {
+	// 1. regex matching is case-sensitive
 	switch t {
 	case Full:
 		return fullMatcher(pattern), nil

common/matcher/str/strmatcher_test.go

@@ -0,0 +1,262 @@
+package str_test
+
+import (
+	"reflect"
+	"testing"
+
+	"github.com/xtls/xray-core/common"
+	. "github.com/xtls/xray-core/common/matcher/str"
+)
+
+func TestMatcherGroup(t *testing.T) {
+	rules := []struct {
+		Type   Type
+		Domain string
+	}{
+		{
+			Type:   Regex,
+			Domain: "apis\\.us$",
+		},
+		{
+			Type:   Substr,
+			Domain: "apis",
+		},
+		{
+			Type:   Domain,
+			Domain: "googleapis.com",
+		},
+		{
+			Type:   Domain,
+			Domain: "com",
+		},
+		{
+			Type:   Full,
+			Domain: "www.baidu.com",
+		},
+		{
+			Type:   Substr,
+			Domain: "apis",
+		},
+		{
+			Type:   Domain,
+			Domain: "googleapis.com",
+		},
+		{
+			Type:   Full,
+			Domain: "fonts.googleapis.com",
+		},
+		{
+			Type:   Full,
+			Domain: "www.baidu.com",
+		},
+		{
+			Type:   Domain,
+			Domain: "example.com",
+		},
+	}
+	cases := []struct {
+		Input  string
+		Output []uint32
+	}{
+		{
+			Input:  "www.baidu.com",
+			Output: []uint32{5, 9, 4},
+		},
+		{
+			Input:  "fonts.googleapis.com",
+			Output: []uint32{8, 3, 7, 4, 2, 6},
+		},
+		{
+			Input:  "example.googleapis.com",
+			Output: []uint32{3, 7, 4, 2, 6},
+		},
+		{
+			Input:  "testapis.us",
+			Output: []uint32{1, 2, 6},
+		},
+		{
+			Input:  "example.com",
+			Output: []uint32{10, 4},
+		},
+	}
+	matcherGroup := &MatcherGroup{}
+	for _, rule := range rules {
+		matcher, err := rule.Type.New(rule.Domain)
+		common.Must(err)
+		matcherGroup.Add(matcher)
+	}
+	for _, test := range cases {
+		if m := matcherGroup.Match(test.Input); !reflect.DeepEqual(m, test.Output) {
+			t.Error("unexpected output: ", m, " for test case ", test)
+		}
+	}
+}
+
+func TestACAutomaton(t *testing.T) {
+	cases1 := []struct {
+		pattern string
+		mType   Type
+		input   string
+		output  bool
+	}{
+		{
+			pattern: "xtls.github.io",
+			mType:   Domain,
+			input:   "www.xtls.github.io",
+			output:  true,
+		},
+		{
+			pattern: "xtls.github.io",
+			mType:   Domain,
+			input:   "xtls.github.io",
+			output:  true,
+		},
+		{
+			pattern: "xtls.github.io",
+			mType:   Domain,
+			input:   "www.xtis.github.io",
+			output:  false,
+		},
+		{
+			pattern: "xtls.github.io",
+			mType:   Domain,
+			input:   "tls.github.io",
+			output:  false,
+		},
+		{
+			pattern: "xtls.github.io",
+			mType:   Domain,
+			input:   "xxtls.github.io",
+			output:  false,
+		},
+		{
+			pattern: "xtls.github.io",
+			mType:   Full,
+			input:   "xtls.github.io",
+			output:  true,
+		},
+		{
+			pattern: "xtls.github.io",
+			mType:   Full,
+			input:   "xxtls.github.io",
+			output:  false,
+		},
+	}
+	for _, test := range cases1 {
+		var ac = NewACAutomaton()
+		ac.Add(test.pattern, test.mType)
+		ac.Build()
+		if m := ac.Match(test.input); m != test.output {
+			t.Error("unexpected output: ", m, " for test case ", test)
+		}
+	}
+	{
+		cases2Input := []struct {
+			pattern string
+			mType   Type
+		}{
+			{
+				pattern: "163.com",
+				mType:   Domain,
+			},
+			{
+				pattern: "m.126.com",
+				mType:   Full,
+			},
+			{
+				pattern: "3.com",
+				mType:   Full,
+			},
+			{
+				pattern: "google.com",
+				mType:   Substr,
+			},
+			{
+				pattern: "vgoogle.com",
+				mType:   Substr,
+			},
+		}
+		var ac = NewACAutomaton()
+		for _, test := range cases2Input {
+			ac.Add(test.pattern, test.mType)
+		}
+		ac.Build()
+		cases2Output := []struct {
+			pattern string
+			res     bool
+		}{
+			{
+				pattern: "126.com",
+				res:     false,
+			},
+			{
+				pattern: "m.163.com",
+				res:     true,
+			},
+			{
+				pattern: "mm163.com",
+				res:     false,
+			},
+			{
+				pattern: "m.126.com",
+				res:     true,
+			},
+			{
+				pattern: "163.com",
+				res:     true,
+			},
+			{
+				pattern: "63.com",
+				res:     false,
+			},
+			{
+				pattern: "oogle.com",
+				res:     false,
+			},
+			{
+				pattern: "vvgoogle.com",
+				res:     true,
+			},
+		}
+		for _, test := range cases2Output {
+			if m := ac.Match(test.pattern); m != test.res {
+				t.Error("unexpected output: ", m, " for test case ", test)
+			}
+		}
+	}
+
+	{
+		cases3Input := []struct {
+			pattern string
+			mType   Type
+		}{
+			{
+				pattern: "video.google.com",
+				mType:   Domain,
+			},
+			{
+				pattern: "gle.com",
+				mType:   Domain,
+			},
+		}
+		var ac = NewACAutomaton()
+		for _, test := range cases3Input {
+			ac.Add(test.pattern, test.mType)
+		}
+		ac.Build()
+		cases3Output := []struct {
+			pattern string
+			res     bool
+		}{
+			{
+				pattern: "google.com",
+				res:     false,
+			},
+		}
+		for _, test := range cases3Output {
+			if m := ac.Match(test.pattern); m != test.res {
+				t.Error("unexpected output: ", m, " for test case ", test)
+			}
+		}
+	}
+}

common/protocol/tls/sniff.go

@@ -102,7 +102,7 @@ func ReadClientHello(data []byte, h *SniffHeader) error {
 					return errNotClientHello
 				}
 				if nameType == 0 {
-					serverName := strings.ToLower(string(d[:nameLen]))
+					serverName := string(d[:nameLen])
 					// An SNI value may not include a
 					// trailing dot. See
 					// https://tools.ietf.org/html/rfc6066#section-3.

common/session/session.go

@@ -6,6 +6,8 @@ import (
 	"math/rand"
 
 	"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/net"
 	"github.com/xtls/xray-core/common/protocol"
 	"github.com/xtls/xray-core/common/signal"
@@ -60,7 +62,8 @@ type Outbound struct {
 
 // SniffingRequest controls the behavior of content sniffing.
 type SniffingRequest struct {
-	ExcludeForDomain               []string
+	ExcludedDomainMatcher          *domain.DomainMatcher
+	ExcludedIPMatcher              *geoip.MultiGeoIPMatcher
 	OverrideDestinationForProtocol []string
 	Enabled                        bool
 	MetadataOnly                   bool
@@ -75,7 +78,7 @@ type Content struct {
 
 	Attributes map[string]string
 
-	SkipRoutePick bool
+	SkipDNSResolve bool
 }
 
 // Sockopt is the settings for socket connection.

common/strmatcher/strmatcher_test.go

@@ -1,93 +0,0 @@
-package strmatcher_test
-
-import (
-	"reflect"
-	"testing"
-
-	"github.com/xtls/xray-core/common"
-	. "github.com/xtls/xray-core/common/strmatcher"
-)
-
-func TestMatcherGroup(t *testing.T) {
-	rules := []struct {
-		Type   Type
-		Domain string
-	}{
-		{
-			Type:   Regex,
-			Domain: "apis\\.us$",
-		},
-		{
-			Type:   Substr,
-			Domain: "apis",
-		},
-		{
-			Type:   Domain,
-			Domain: "googleapis.com",
-		},
-		{
-			Type:   Domain,
-			Domain: "com",
-		},
-		{
-			Type:   Full,
-			Domain: "www.baidu.com",
-		},
-		{
-			Type:   Substr,
-			Domain: "apis",
-		},
-		{
-			Type:   Domain,
-			Domain: "googleapis.com",
-		},
-		{
-			Type:   Full,
-			Domain: "fonts.googleapis.com",
-		},
-		{
-			Type:   Full,
-			Domain: "www.baidu.com",
-		},
-		{
-			Type:   Domain,
-			Domain: "example.com",
-		},
-	}
-	cases := []struct {
-		Input  string
-		Output []uint32
-	}{
-		{
-			Input:  "www.baidu.com",
-			Output: []uint32{5, 9, 4},
-		},
-		{
-			Input:  "fonts.googleapis.com",
-			Output: []uint32{8, 3, 7, 4, 2, 6},
-		},
-		{
-			Input:  "example.googleapis.com",
-			Output: []uint32{3, 7, 4, 2, 6},
-		},
-		{
-			Input:  "testapis.us",
-			Output: []uint32{1, 2, 6},
-		},
-		{
-			Input:  "example.com",
-			Output: []uint32{10, 4},
-		},
-	}
-	matcherGroup := &MatcherGroup{}
-	for _, rule := range rules {
-		matcher, err := rule.Type.New(rule.Domain)
-		common.Must(err)
-		matcherGroup.Add(matcher)
-	}
-	for _, test := range cases {
-		if m := matcherGroup.Match(test.Input); !reflect.DeepEqual(m, test.Output) {
-			t.Error("unexpected output: ", m, " for test case ", test)
-		}
-	}
-}

core/config.go

@@ -80,14 +80,25 @@ func getFormat(filename string) string {
 func LoadConfig(formatName string, input interface{}) (*Config, error) {
 	switch v := input.(type) {
 	case cmdarg.Arg:
-
 		formats := make([]string, len(v))
 		hasProtobuf := false
 		for i, file := range v {
-			f := getFormat(file)
-			if f == "" {
+			var f string
+
+			if formatName == "auto" {
+				if file != "stdin:" {
+					f = getFormat(file)
+				} else {
+					f = "json"
+				}
+			} else {
 				f = formatName
 			}
+
+			if f == "" {
+				return nil, newError("Failed to get format of ", file).AtWarning()
+			}
+
 			if f == "protobuf" {
 				hasProtobuf = true
 			}

core/core.go

@@ -18,7 +18,7 @@ import (
 )
 
 var (
-	version  = "1.4.0"
+	version  = "1.4.2"
 	build    = "Custom"
 	codename = "Xray, Penetrates Everything."
 	intro    = "A unified platform for anti-censorship."

features/dns/client.go

@@ -14,6 +14,12 @@ type IPOption struct {
 	FakeEnable bool
 }
 
+func (p *IPOption) Copy() *IPOption {
+	return &IPOption{p.IPv4Enable, p.IPv6Enable, p.FakeEnable}
+}
+
+type Option func(dopt *IPOption) *IPOption
+
 // Client is a Xray feature for querying DNS information.
 //
 // xray:api:stable
@@ -21,7 +27,24 @@ type Client interface {
 	features.Feature
 
 	// LookupIP returns IP address for the given domain. IPs may contain IPv4 and/or IPv6 addresses.
-	LookupIP(domain string, option IPOption) ([]net.IP, error)
+	LookupIP(domain string) ([]net.IP, error)
+
+	// LookupOptions query IP address for domain with *IPOption.
+	LookupOptions(domain string, opt ...Option) ([]net.IP, error)
+}
+
+// IPv4Lookup is an optional feature for querying IPv4 addresses only.
+//
+// xray:api:beta
+type IPv4Lookup interface {
+	LookupIPv4(domain string) ([]net.IP, error)
+}
+
+// IPv6Lookup is an optional feature for querying IPv6 addresses only.
+//
+// xray:api:beta
+type IPv6Lookup interface {
+	LookupIPv6(domain string) ([]net.IP, error)
 }
 
 // ClientType returns the type of Client interface. Can be used for implementing common.HasType.
@@ -50,3 +73,35 @@ func RCodeFromError(err error) uint16 {
 	}
 	return 0
 }
+
+var (
+	LookupIPv4Only = func(d *IPOption) *IPOption {
+		d.IPv4Enable = true
+		d.IPv6Enable = false
+		return d
+	}
+	LookupIPv6Only = func(d *IPOption) *IPOption {
+		d.IPv4Enable = false
+		d.IPv6Enable = true
+		return d
+	}
+	LookupIP = func(d *IPOption) *IPOption {
+		d.IPv4Enable = true
+		d.IPv6Enable = true
+		return d
+	}
+	LookupFake = func(d *IPOption) *IPOption {
+		d.FakeEnable = true
+		return d
+	}
+	LookupNoFake = func(d *IPOption) *IPOption {
+		d.FakeEnable = false
+		return d
+	}
+
+	LookupAll = func(d *IPOption) *IPOption {
+		LookupIP(d)
+		LookupFake(d)
+		return d
+	}
+)

features/dns/localdns/client.go

@@ -20,41 +20,64 @@ func (*Client) Start() error { return nil }
 func (*Client) Close() error { return nil }
 
 // LookupIP implements Client.
-func (*Client) LookupIP(host string, option dns.IPOption) ([]net.IP, error) {
+func (*Client) LookupIP(host string) ([]net.IP, error) {
 	ips, err := net.LookupIP(host)
 	if err != nil {
 		return nil, err
 	}
 	parsedIPs := make([]net.IP, 0, len(ips))
-	ipv4 := make([]net.IP, 0, len(ips))
-	ipv6 := make([]net.IP, 0, len(ips))
 	for _, ip := range ips {
 		parsed := net.IPAddress(ip)
 		if parsed != nil {
 			parsedIPs = append(parsedIPs, parsed.IP())
 		}
+	}
+	if len(parsedIPs) == 0 {
+		return nil, dns.ErrEmptyResponse
+	}
+	return parsedIPs, nil
+}
+
+// LookupOptions implements Client.
+func (c *Client) LookupOptions(host string, _ ...dns.Option) ([]net.IP, error) {
+	return c.LookupIP(host)
+}
+
+// LookupIPv4 implements IPv4Lookup.
+func (c *Client) LookupIPv4(host string) ([]net.IP, error) {
+	ips, err := c.LookupIP(host)
+	if err != nil {
+		return nil, err
+	}
+	ipv4 := make([]net.IP, 0, len(ips))
+	for _, ip := range ips {
 		if len(ip) == net.IPv4len {
 			ipv4 = append(ipv4, ip)
 		}
+	}
+	if len(ipv4) == 0 {
+		return nil, dns.ErrEmptyResponse
+	}
+	return ipv4, nil
+}
+
+// LookupIPv6 implements IPv6Lookup.
+func (c *Client) LookupIPv6(host string) ([]net.IP, error) {
+	ips, err := c.LookupIP(host)
+	if err != nil {
+		return nil, err
+	}
+	ipv6 := make([]net.IP, 0, len(ips))
+	for _, ip := range ips {
 		if len(ip) == net.IPv6len {
 			ipv6 = append(ipv6, ip)
 		}
 	}
-	switch {
-	case option.IPv4Enable && option.IPv6Enable:
-		if len(parsedIPs) > 0 {
-			return parsedIPs, nil
-		}
-	case option.IPv4Enable:
-		if len(ipv4) > 0 {
-			return ipv4, nil
-		}
-	case option.IPv6Enable:
-		if len(ipv6) > 0 {
-			return ipv6, nil
-		}
+	if len(ipv6) == 0 {
+		return nil, dns.ErrEmptyResponse
 	}
-	return nil, dns.ErrEmptyResponse
+
+	return ipv6, nil
 }
 
 // New create a new dns.Client that queries localhost for DNS.

features/routing/context.go

@@ -37,4 +37,7 @@ type Context interface {
 
 	// GetAttributes returns extra attributes from the conneciont content.
 	GetAttributes() map[string]string
+
+	// GetSkipDNSResolve returns a flag switch for weather skip dns resolve during route pick.
+	GetSkipDNSResolve() bool
 }

features/routing/dns/context.go

@@ -26,16 +26,12 @@ func (ctx *ResolvableContext) GetTargetIPs() []net.IP {
 	}
 
 	if domain := ctx.GetTargetDomain(); len(domain) != 0 {
-		ips, err := ctx.dnsClient.LookupIP(domain, dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
+		ips, err := ctx.dnsClient.LookupIP(domain)
 		if err == nil {
 			ctx.resolvedIPs = ips
 			return ips
 		}
-		newError("resolve ip for ", domain).Base(err).WriteToLog()
+		newError("failed to resolve ip for ", domain).Base(err).WriteToLog()
 	}
 
 	return nil

features/routing/session/context.go

@@ -109,6 +109,14 @@ func (ctx *Context) GetAttributes() map[string]string {
 	return ctx.Content.Attributes
 }
 
+// GetSkipDNSResolve implements routing.Context.
+func (ctx *Context) GetSkipDNSResolve() bool {
+	if ctx.Content == nil {
+		return false
+	}
+	return ctx.Content.SkipDNSResolve
+}
+
 // AsRoutingContext creates a context from context.context with session info.
 func AsRoutingContext(ctx context.Context) routing.Context {
 	return &Context{

go.mod

@@ -5,22 +5,23 @@ go 1.16
 require (
 	github.com/ghodss/yaml v1.0.1-0.20190212211648-25d852aebe32
 	github.com/golang/mock v1.5.0
-	github.com/golang/protobuf v1.4.3
+	github.com/golang/protobuf v1.5.2
 	github.com/google/go-cmp v0.5.5
 	github.com/gorilla/websocket v1.4.2
-	github.com/lucas-clemente/quic-go v0.19.3
-	github.com/miekg/dns v1.1.40
+	github.com/lucas-clemente/quic-go v0.20.0
+	github.com/miekg/dns v1.1.41
 	github.com/pelletier/go-toml v1.8.1
 	github.com/pires/go-proxyproto v0.5.0
+	github.com/refraction-networking/utls v0.0.0-20201210053706-2179f286686b
 	github.com/seiflotfy/cuckoofilter v0.0.0-20201222105146-bc6005554a0c
 	github.com/stretchr/testify v1.7.0
 	github.com/xtls/go v0.0.0-20201118062508-3632bf3b7499
 	go.starlark.net v0.0.0-20210312235212-74c10e2c17dc
-	golang.org/x/crypto v0.0.0-20210220033148-5ea612d1eb83
-	golang.org/x/net v0.0.0-20210226172049-e18ecbb05110
+	golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2
+	golang.org/x/net v0.0.0-20210330230544-e57232859fb2
 	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
-	golang.org/x/sys v0.0.0-20210313202042-bd2e13477e9c
-	google.golang.org/grpc v1.36.0
-	google.golang.org/protobuf v1.25.0
+	golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44
+	google.golang.org/grpc v1.36.1
+	google.golang.org/protobuf v1.26.0
 	h12.io/socks v1.0.2
 )

go.sum

@@ -43,12 +43,9 @@ github.com/gliderlabs/ssh v0.1.1/go.mod h1:U7qILu1NlMHj9FlMhZLlkCdDnU1DBEAqr0aev
 github.com/go-errors/errors v1.0.1/go.mod h1:f4zRHt4oKfwPJE5k8C9vpYG+aDHdBFUsgrm6/TyX73Q=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
-github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
-github.com/golang/groupcache v0.0.0-20191027212112-611e8accdfc9/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/lint v0.0.0-20180702182130-06c8688daad7/go.mod h1:tluoj9z5200jBnyusfRPU2LqT6J+DAorxEvtC7LHB+E=
 github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
 github.com/golang/mock v1.2.0/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
-github.com/golang/mock v1.4.0/go.mod h1:UOMv5ysSaYNkG+OFQykRIcU/QvvxJf3p21QfJ2Bt3cw=
 github.com/golang/mock v1.4.4/go.mod h1:l3mdAwkq5BuhzHwde/uurv3sEJeZMXNpwsxVWU71h+4=
 github.com/golang/mock v1.5.0 h1:jlYHihg//f7RRwuPfptm04yp4s7O6Kw8EZiVYIGcH0g=
 github.com/golang/mock v1.5.0/go.mod h1:CWnOUgYIOo4TcNZ0wHX3YZCqsaM1I1Jvs6v3mP3KVu8=
@@ -62,8 +59,9 @@ github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:W
 github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
 github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QDs8UjoX8=
 github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
-github.com/golang/protobuf v1.4.3 h1:JjCZWpVbqXDqFVmTfYWEVTMIYrL/NPdPSCHPJ0T/raM=
-github.com/golang/protobuf v1.4.3/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
+github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
+github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
+github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
 github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
@@ -98,19 +96,19 @@ github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/pty v1.1.3/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
-github.com/lucas-clemente/quic-go v0.19.3 h1:eCDQqvGBB+kCTkA0XrAFtNe81FMa0/fn4QSoeAbmiF4=
-github.com/lucas-clemente/quic-go v0.19.3/go.mod h1:ADXpNbTQjq1hIzCpB+y/k5iz4n4z4IwqoLb94Kh5Hu8=
+github.com/lucas-clemente/quic-go v0.20.0 h1:FSU3YN5VnLafHR27Ejs1r1CYMS7XMyIVDzRewkDLNBw=
+github.com/lucas-clemente/quic-go v0.20.0/go.mod h1:fZq/HUDIM+mW6X6wtzORjC0E/WDBMKe5Hf9bgjISwLk=
 github.com/lunixbochs/vtclean v1.0.0/go.mod h1:pHhQNgMf3btfWnGBVipUOjRYhoOsdGqdm/+2c2E2WMI=
 github.com/mailru/easyjson v0.0.0-20190312143242-1de009706dbe/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
 github.com/marten-seemann/qpack v0.2.1/go.mod h1:F7Gl5L1jIgN1D11ucXefiuJS9UMVP2opoCp2jDKb7wc=
-github.com/marten-seemann/qtls v0.10.0 h1:ECsuYUKalRL240rRD4Ri33ISb7kAQ3qGDlrrl55b2pc=
-github.com/marten-seemann/qtls v0.10.0/go.mod h1:UvMd1oaYDACI99/oZUYLzMCkBXQVT0aGm99sJhbT8hs=
-github.com/marten-seemann/qtls-go1-15 v0.1.1 h1:LIH6K34bPVttyXnUWixk0bzH6/N07VxbSabxn5A5gZQ=
-github.com/marten-seemann/qtls-go1-15 v0.1.1/go.mod h1:GyFwywLKkRt+6mfU99csTEY1joMZz5vmB1WNZH3P81I=
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 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
 github.com/microcosm-cc/bluemonday v1.0.1/go.mod h1:hsXNsILzKxV+sX77C5b8FSuKF00vh2OMYv+xgHpAMF4=
-github.com/miekg/dns v1.1.40 h1:pyyPFfGMnciYUk/mXpKkVmeMQjfXqt3FAJ2hy7tPiLA=
-github.com/miekg/dns v1.1.40/go.mod h1:KNUDUusw/aVsxyTYZM1oqvCicbwhgbNgztCETuNZ7xM=
+github.com/miekg/dns v1.1.41 h1:WMszZWJG0XmzbK9FEmzH2TVcqYzFesusSIB41b8KHxY=
+github.com/miekg/dns v1.1.41/go.mod h1:p6aan82bvRIyn+zDIv9xYNUpwa73JcSh9BKwknJysuI=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/neelance/astrewrite v0.0.0-20160511093645-99348263ae86/go.mod h1:kHJEU3ofeGjhHklVoIGuVj85JJwZ6kWPaJwCIxgnFmo=
@@ -139,6 +137,8 @@ github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/prometheus/common v0.0.0-20180801064454-c7de2306084e/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
 github.com/prometheus/procfs v0.0.0-20180725123919-05ee40e3a273/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
+github.com/refraction-networking/utls v0.0.0-20201210053706-2179f286686b h1:lzo71oHzQEz0fKMSjR0BpVzuh2hOHvJTxnN3Rnikmtg=
+github.com/refraction-networking/utls v0.0.0-20201210053706-2179f286686b/go.mod h1:tz9gX959MEFfFN5whTIocCLUG57WiILqtdVxI8c6Wj0=
 github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
 github.com/seiflotfy/cuckoofilter v0.0.0-20201222105146-bc6005554a0c h1:pqy40B3MQWYrza7YZXOXgl0Nf0QGFqrOC0BKae1UNAA=
 github.com/seiflotfy/cuckoofilter v0.0.0-20201222105146-bc6005554a0c/go.mod h1:bR6DqgcAl1zTcOX8/pE2Qkj9XO00eCNqmKb7lXP8EAg=
@@ -169,7 +169,6 @@ github.com/sourcegraph/annotate v0.0.0-20160123013949-f4cad6c6324d/go.mod h1:Udh
 github.com/sourcegraph/syntaxhighlight v0.0.0-20170531221838-bd320f5d308e/go.mod h1:HuIsMU8RRBOtsCgI77wP899iHVBQpCmg4ErYMZB+2IA=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
-github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
@@ -180,7 +179,6 @@ github.com/viant/toolbox v0.24.0/go.mod h1:OxMCG57V0PXuIP2HNQrtJf2CjqdmbrOx5EkMI
 github.com/xtls/go v0.0.0-20201118062508-3632bf3b7499 h1:QHESTXtfgc1ABV+ArlbPVqUx9Ht5I0dDkYhxYoXFxNo=
 github.com/xtls/go v0.0.0-20201118062508-3632bf3b7499/go.mod h1:5TB2+k58gx4A4g2Nf5miSHNDF6CuAzHKpWBooLAshTs=
 go.opencensus.io v0.18.0/go.mod h1:vKdFvxhtzZ9onBp9VKHK8z/sRpBMnKAsufL7wlDrCOA=
-go.opencensus.io v0.22.2/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
 go.starlark.net v0.0.0-20210312235212-74c10e2c17dc h1:pVkptfeOTFfx+zXZo7HEHN3d5LmhatBFvHdm/f2QnpY=
 go.starlark.net v0.0.0-20210312235212-74c10e2c17dc/go.mod h1:t3mmBBPzAVvK0L0n1drDmrQsJ8FoIx4INCqVMTr/Zo0=
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@@ -191,14 +189,13 @@ golang.org/x/crypto v0.0.0-20190313024323-a1f597ede03a/go.mod h1:djNgcEr1/C05ACk
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200221231518-2aa609cf4a9d/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/crypto v0.0.0-20210220033148-5ea612d1eb83 h1:/ZScEX8SfEmUGRHs0gxpqteO5nfNW6axyZbBdw9A12g=
-golang.org/x/crypto v0.0.0-20210220033148-5ea612d1eb83/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I=
+golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2 h1:It14KIkyBFYkHkwZ7k45minvA9aorojkyjGk9KJ5B/w=
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 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/lint v0.0.0-20180702182130-06c8688daad7/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
-golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -211,11 +208,11 @@ golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn
 golang.org/x/net v0.0.0-20190313220215-9f648a60d977/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20190923162816-aa69164e4478/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200520004742-59133d7f0dd7/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
 golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
-golang.org/x/net v0.0.0-20210226172049-e18ecbb05110 h1:qWPm9rbaAMKs8Bq/9LRpbMqxWRVUAQwMI9fVrssnTfw=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
+golang.org/x/net v0.0.0-20210330230544-e57232859fb2 h1:nGCZOty+lVDsc4H2qPFksI5Se296+V+GhMiL/TzmYNk=
+golang.org/x/net v0.0.0-20210330230544-e57232859fb2/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20181017192945-9dcd33a902f4/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20181203162652-d668ce993890/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
@@ -235,22 +232,19 @@ golang.org/x/sys v0.0.0-20181029174526-d69651ed3497/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190316082340-a2f829d7f35f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/sys v0.0.0-20190904154756-749cb33beabd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190924154521-2837fb4f24fe/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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+golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44 h1:Bli41pIlzTzf3KEY06n+xnzK/BESIg2ze4Pgfh/aI8c=
+golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
-golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
@@ -267,7 +261,6 @@ golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3
 golang.org/x/tools v0.0.0-20190425150028-36563e24a262/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.0.0-20191216052735-49a3e744a425/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -285,7 +278,6 @@ google.golang.org/genproto v0.0.0-20180831171423-11092d34479b/go.mod h1:JiN7NxoA
 google.golang.org/genproto v0.0.0-20181029155118-b69ba1387ce2/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/genproto v0.0.0-20181202183823-bd91e49a0898/go.mod h1:7Ep/1NZk928CDR8SjdVbjWNpdIf6nzjE3BTgJDr2Atg=
 google.golang.org/genproto v0.0.0-20190306203927-b5d61aea6440/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
-google.golang.org/genproto v0.0.0-20190425155659-357c62f0e4bb/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
 google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
 google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013 h1:+kGHl1aib/qcwaRi1CbqBZ1rk19r85MNUf8HaBghugY=
 google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
@@ -293,12 +285,11 @@ google.golang.org/grpc v1.14.0/go.mod h1:yo6s7OP7yaDglbqo1J04qKzAhqBH6lvTonzMVmE
 google.golang.org/grpc v1.16.0/go.mod h1:0JHn/cJsOMiMfNA9+DeHDlAU7KAAB5GDlYFpa9MZMio=
 google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
-google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
 google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
 google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
 google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
-google.golang.org/grpc v1.36.0 h1:o1bcQ6imQMIOpdrO3SWf2z5RV72WbDwdXuK0MDlc8As=
-google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
+google.golang.org/grpc v1.36.1 h1:cmUfbeGKnz9+2DD/UYsMQXeqbHZqZDs4eQwW0sFOpBY=
+google.golang.org/grpc v1.36.1/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@@ -307,8 +298,10 @@ google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzi
 google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
-google.golang.org/protobuf v1.25.0 h1:Ejskq+SyPohKW+1uil0JJMtmHCgJPJ/qWTxr8qp+R4c=
 google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
+google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
+google.golang.org/protobuf v1.26.0 h1:bxAC2xTBsZGibn2RTntX0oH50xLsqy1OxA9tTL3p/lk=
+google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
@@ -331,7 +324,5 @@ honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWh
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
-rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
 sourcegraph.com/sourcegraph/go-diff v0.5.0/go.mod h1:kuch7UrkMzY0X+p9CRK03kfuPQ2zzQcaEFbx8wA8rck=
 sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4/go.mod h1:ketZ/q3QxT9HOBeFhu6RdvsftgpsbFHBF5Cas6cDKZ0=

infra/conf/common.go

@@ -9,6 +9,8 @@ import (
 	"github.com/xtls/xray-core/common/protocol"
 )
 
+//go:generate go run github.com/xtls/xray-core/common/errors/errorgen
+
 type StringList []string
 
 func NewStringList(raw []string) *StringList {

infra/conf/common_test.go

@@ -2,6 +2,7 @@ package conf_test
 
 import (
 	"encoding/json"
+	"github.com/xtls/xray-core/infra/conf"
 	"os"
 	"testing"
 
@@ -11,12 +12,11 @@ import (
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/protocol"
-	. "github.com/xtls/xray-core/infra/conf"
 )
 
 func TestStringListUnmarshalError(t *testing.T) {
 	rawJSON := `1234`
-	list := new(StringList)
+	list := new(conf.StringList)
 	err := json.Unmarshal([]byte(rawJSON), list)
 	if err == nil {
 		t.Error("expected error, but got nil")
@@ -25,7 +25,7 @@ func TestStringListUnmarshalError(t *testing.T) {
 
 func TestStringListLen(t *testing.T) {
 	rawJSON := `"a, b, c, d"`
-	var list StringList
+	var list conf.StringList
 	err := json.Unmarshal([]byte(rawJSON), &list)
 	common.Must(err)
 	if r := cmp.Diff([]string(list), []string{"a", " b", " c", " d"}); r != "" {
@@ -35,7 +35,7 @@ func TestStringListLen(t *testing.T) {
 
 func TestIPParsing(t *testing.T) {
 	rawJSON := "\"8.8.8.8\""
-	var address Address
+	var address conf.Address
 	err := json.Unmarshal([]byte(rawJSON), &address)
 	common.Must(err)
 	if r := cmp.Diff(address.IP(), net.IP{8, 8, 8, 8}); r != "" {
@@ -45,7 +45,7 @@ func TestIPParsing(t *testing.T) {
 
 func TestDomainParsing(t *testing.T) {
 	rawJSON := "\"example.com\""
-	var address Address
+	var address conf.Address
 	common.Must(json.Unmarshal([]byte(rawJSON), &address))
 	if address.Domain() != "example.com" {
 		t.Error("domain: ", address.Domain())
@@ -55,7 +55,7 @@ func TestDomainParsing(t *testing.T) {
 func TestURLParsing(t *testing.T) {
 	{
 		rawJSON := "\"https://dns.google/dns-query\""
-		var address Address
+		var address conf.Address
 		common.Must(json.Unmarshal([]byte(rawJSON), &address))
 		if address.Domain() != "https://dns.google/dns-query" {
 			t.Error("URL: ", address.Domain())
@@ -63,7 +63,7 @@ func TestURLParsing(t *testing.T) {
 	}
 	{
 		rawJSON := "\"https+local://dns.google/dns-query\""
-		var address Address
+		var address conf.Address
 		common.Must(json.Unmarshal([]byte(rawJSON), &address))
 		if address.Domain() != "https+local://dns.google/dns-query" {
 			t.Error("URL: ", address.Domain())
@@ -73,7 +73,7 @@ func TestURLParsing(t *testing.T) {
 
 func TestInvalidAddressJson(t *testing.T) {
 	rawJSON := "1234"
-	var address Address
+	var address conf.Address
 	err := json.Unmarshal([]byte(rawJSON), &address)
 	if err == nil {
 		t.Error("nil error")
@@ -81,7 +81,7 @@ func TestInvalidAddressJson(t *testing.T) {
 }
 
 func TestStringNetwork(t *testing.T) {
-	var network Network
+	var network conf.Network
 	common.Must(json.Unmarshal([]byte(`"tcp"`), &network))
 	if v := network.Build(); v != net.Network_TCP {
 		t.Error("network: ", v)
@@ -89,7 +89,7 @@ func TestStringNetwork(t *testing.T) {
 }
 
 func TestArrayNetworkList(t *testing.T) {
-	var list NetworkList
+	var list conf.NetworkList
 	common.Must(json.Unmarshal([]byte("[\"Tcp\"]"), &list))
 
 	nlist := list.Build()
@@ -102,7 +102,7 @@ func TestArrayNetworkList(t *testing.T) {
 }
 
 func TestStringNetworkList(t *testing.T) {
-	var list NetworkList
+	var list conf.NetworkList
 	common.Must(json.Unmarshal([]byte("\"TCP, ip\""), &list))
 
 	nlist := list.Build()
@@ -115,7 +115,7 @@ func TestStringNetworkList(t *testing.T) {
 }
 
 func TestInvalidNetworkJson(t *testing.T) {
-	var list NetworkList
+	var list conf.NetworkList
 	err := json.Unmarshal([]byte("0"), &list)
 	if err == nil {
 		t.Error("nil error")
@@ -123,10 +123,10 @@ func TestInvalidNetworkJson(t *testing.T) {
 }
 
 func TestIntPort(t *testing.T) {
-	var portRange PortRange
+	var portRange conf.PortRange
 	common.Must(json.Unmarshal([]byte("1234"), &portRange))
 
-	if r := cmp.Diff(portRange, PortRange{
+	if r := cmp.Diff(portRange, conf.PortRange{
 		From: 1234, To: 1234,
 	}); r != "" {
 		t.Error(r)
@@ -134,7 +134,7 @@ func TestIntPort(t *testing.T) {
 }
 
 func TestOverRangeIntPort(t *testing.T) {
-	var portRange PortRange
+	var portRange conf.PortRange
 	err := json.Unmarshal([]byte("70000"), &portRange)
 	if err == nil {
 		t.Error("nil error")
@@ -149,10 +149,10 @@ func TestOverRangeIntPort(t *testing.T) {
 func TestEnvPort(t *testing.T) {
 	common.Must(os.Setenv("PORT", "1234"))
 
-	var portRange PortRange
+	var portRange conf.PortRange
 	common.Must(json.Unmarshal([]byte("\"env:PORT\""), &portRange))
 
-	if r := cmp.Diff(portRange, PortRange{
+	if r := cmp.Diff(portRange, conf.PortRange{
 		From: 1234, To: 1234,
 	}); r != "" {
 		t.Error(r)
@@ -160,10 +160,10 @@ func TestEnvPort(t *testing.T) {
 }
 
 func TestSingleStringPort(t *testing.T) {
-	var portRange PortRange
+	var portRange conf.PortRange
 	common.Must(json.Unmarshal([]byte("\"1234\""), &portRange))
 
-	if r := cmp.Diff(portRange, PortRange{
+	if r := cmp.Diff(portRange, conf.PortRange{
 		From: 1234, To: 1234,
 	}); r != "" {
 		t.Error(r)
@@ -171,10 +171,10 @@ func TestSingleStringPort(t *testing.T) {
 }
 
 func TestStringPairPort(t *testing.T) {
-	var portRange PortRange
+	var portRange conf.PortRange
 	common.Must(json.Unmarshal([]byte("\"1234-5678\""), &portRange))
 
-	if r := cmp.Diff(portRange, PortRange{
+	if r := cmp.Diff(portRange, conf.PortRange{
 		From: 1234, To: 5678,
 	}); r != "" {
 		t.Error(r)
@@ -182,7 +182,7 @@ func TestStringPairPort(t *testing.T) {
 }
 
 func TestOverRangeStringPort(t *testing.T) {
-	var portRange PortRange
+	var portRange conf.PortRange
 	err := json.Unmarshal([]byte("\"65536\""), &portRange)
 	if err == nil {
 		t.Error("nil error")
@@ -205,7 +205,7 @@ func TestOverRangeStringPort(t *testing.T) {
 }
 
 func TestUserParsing(t *testing.T) {
-	user := new(User)
+	user := new(conf.User)
 	common.Must(json.Unmarshal([]byte(`{
     "id": "96edb838-6d68-42ef-a933-25f7ac3a9d09",
     "email": "love@example.com",
@@ -223,7 +223,7 @@ func TestUserParsing(t *testing.T) {
 }
 
 func TestInvalidUserJson(t *testing.T) {
-	user := new(User)
+	user := new(conf.User)
 	err := json.Unmarshal([]byte(`{"email": 1234}`), user)
 	if err == nil {
 		t.Error("nil error")

infra/conf/dns.go

@@ -2,19 +2,25 @@ package conf
 
 import (
 	"encoding/json"
+
 	"sort"
 	"strings"
 
 	"github.com/xtls/xray-core/app/dns"
-	"github.com/xtls/xray-core/app/router"
+	dm "github.com/xtls/xray-core/common/matcher/domain"
+	"github.com/xtls/xray-core/common/matcher/domain/conf"
+	"github.com/xtls/xray-core/common/matcher/geoip"
+	"github.com/xtls/xray-core/common/matcher/geosite"
 	"github.com/xtls/xray-core/common/net"
 )
 
 type NameServerConfig struct {
-	Address   *Address
-	Port      uint16
-	Domains   []string
-	ExpectIPs StringList
+	Address      *Address
+	ClientIP     *Address
+	Port         uint16
+	SkipFallback bool
+	Domains      []string
+	ExpectIPs    StringList
 }
 
 func (c *NameServerConfig) UnmarshalJSON(data []byte) error {
@@ -25,14 +31,18 @@ func (c *NameServerConfig) UnmarshalJSON(data []byte) error {
 	}
 
 	var advanced struct {
-		Address   *Address   `json:"address"`
-		Port      uint16     `json:"port"`
-		Domains   []string   `json:"domains"`
-		ExpectIPs StringList `json:"expectIps"`
+		Address      *Address   `json:"address"`
+		ClientIP     *Address   `json:"clientIp"`
+		Port         uint16     `json:"port"`
+		SkipFallback bool       `json:"skipFallback"`
+		Domains      []string   `json:"domains"`
+		ExpectIPs    StringList `json:"expectIps"`
 	}
 	if err := json.Unmarshal(data, &advanced); err == nil {
 		c.Address = advanced.Address
+		c.ClientIP = advanced.ClientIP
 		c.Port = advanced.Port
+		c.SkipFallback = advanced.SkipFallback
 		c.Domains = advanced.Domains
 		c.ExpectIPs = advanced.ExpectIPs
 		return nil
@@ -41,39 +51,24 @@ func (c *NameServerConfig) UnmarshalJSON(data []byte) error {
 	return newError("failed to parse name server: ", string(data))
 }
 
-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")
-	}
-}
-
 func (c *NameServerConfig) Build() (*dns.NameServer, error) {
 	if c.Address == nil {
 		return nil, newError("NameServer address is not specified.")
 	}
 
-	var domains []*dns.NameServer_PriorityDomain
+	var domains []*dm.Domain
 	var originalRules []*dns.NameServer_OriginalRule
 
 	for _, rule := range c.Domains {
-		parsedDomain, err := parseDomainRule(rule)
+		parsedDomain, err := conf.ParseDomainRule(rule)
 		if err != nil {
 			return nil, newError("invalid domain rule: ", rule).Base(err)
 		}
 
 		for _, pd := range parsedDomain {
-			domains = append(domains, &dns.NameServer_PriorityDomain{
-				Type:   toDomainMatchingType(pd.Type),
-				Domain: pd.Value,
+			domains = append(domains, &dm.Domain{
+				Type:  pd.Type,
+				Value: pd.Value,
 			})
 		}
 		originalRules = append(originalRules, &dns.NameServer_OriginalRule{
@@ -82,54 +77,100 @@ func (c *NameServerConfig) Build() (*dns.NameServer, error) {
 		})
 	}
 
-	geoipList, err := toCidrList(c.ExpectIPs)
+	geoipList, err := geoip.ParseIPList(c.ExpectIPs)
 	if err != nil {
 		return nil, newError("invalid IP rule: ", c.ExpectIPs).Base(err)
 	}
 
+	var myClientIP []byte
+	if c.ClientIP != nil {
+		if !c.ClientIP.Family().IsIP() {
+			return nil, newError("not an IP address:", c.ClientIP.String())
+		}
+		myClientIP = []byte(c.ClientIP.IP())
+	}
 	return &dns.NameServer{
 		Address: &net.Endpoint{
 			Network: net.Network_UDP,
 			Address: c.Address.Build(),
 			Port:    uint32(c.Port),
 		},
+		ClientIp:          myClientIP,
+		SkipFallback:      c.SkipFallback,
 		PrioritizedDomain: domains,
 		Geoip:             geoipList,
 		OriginalRules:     originalRules,
 	}, nil
 }
 
-var typeMap = map[router.Domain_Type]dns.DomainMatchingType{
-	router.Domain_Full:   dns.DomainMatchingType_Full,
-	router.Domain_Domain: dns.DomainMatchingType_Subdomain,
-	router.Domain_Plain:  dns.DomainMatchingType_Keyword,
-	router.Domain_Regex:  dns.DomainMatchingType_Regex,
-}
-
 // DNSConfig is a JSON serializable object for dns.Config.
 type DNSConfig struct {
-	Servers  []*NameServerConfig `json:"servers"`
-	Hosts    map[string]*Address `json:"hosts"`
-	ClientIP *Address            `json:"clientIp"`
-	Tag      string              `json:"tag"`
+	Servers         []*NameServerConfig     `json:"servers"`
+	Hosts           map[string]*HostAddress `json:"hosts"`
+	ClientIP        *Address                `json:"clientIp"`
+	Tag             string                  `json:"tag"`
+	QueryStrategy   string                  `json:"queryStrategy"`
+	CacheStrategy   string                  `json:"cacheStrategy"`
+	DisableCache    bool                    `json:"disableCache"`
+	DisableFallback bool                    `json:"disableFallback"`
 }
 
-func getHostMapping(addr *Address) *dns.Config_HostMapping {
-	if addr.Family().IsIP() {
-		return &dns.Config_HostMapping{
-			Ip: [][]byte{[]byte(addr.IP())},
+type HostAddress struct {
+	addr  *Address
+	addrs []*Address
+}
+
+// UnmarshalJSON implements encoding/json.Unmarshaler.UnmarshalJSON
+func (h *HostAddress) UnmarshalJSON(data []byte) error {
+	addr := new(Address)
+	var addrs []*Address
+	switch {
+	case json.Unmarshal(data, &addr) == nil:
+		h.addr = addr
+	case json.Unmarshal(data, &addrs) == nil:
+		h.addrs = addrs
+	default:
+		return newError("invalid address")
+	}
+	return nil
+}
+
+func getHostMapping(ha *HostAddress) *dns.Config_HostMapping {
+	if ha.addr != nil {
+		if ha.addr.Family().IsDomain() {
+			return &dns.Config_HostMapping{
+				ProxiedDomain: ha.addr.Domain(),
+			}
 		}
-	} else {
 		return &dns.Config_HostMapping{
-			ProxiedDomain: addr.Domain(),
+			Ip: [][]byte{ha.addr.IP()},
 		}
 	}
+
+	ips := make([][]byte, 0, len(ha.addrs))
+	for _, addr := range ha.addrs {
+		if addr.Family().IsDomain() {
+			return &dns.Config_HostMapping{
+				ProxiedDomain: addr.Domain(),
+			}
+		}
+		ips = append(ips, []byte(addr.IP()))
+	}
+	return &dns.Config_HostMapping{
+		Ip: ips,
+	}
 }
 
 // Build implements Buildable
 func (c *DNSConfig) Build() (*dns.Config, error) {
 	config := &dns.Config{
-		Tag: c.Tag,
+		Tag:             c.Tag,
+		CacheStrategy:   dns.CacheStrategy_Cache_ALL,
+		DisableFallback: c.DisableFallback,
+	}
+
+	if c.DisableCache {
+		config.CacheStrategy = dns.CacheStrategy_Cache_DISABLE
 	}
 
 	if c.ClientIP != nil {
@@ -139,6 +180,25 @@ func (c *DNSConfig) Build() (*dns.Config, error) {
 		config.ClientIp = []byte(c.ClientIP.IP())
 	}
 
+	config.QueryStrategy = dns.QueryStrategy_USE_IP
+	switch strings.ToLower(c.QueryStrategy) {
+	case "useip", "use_ip", "use-ip":
+		config.QueryStrategy = dns.QueryStrategy_USE_IP
+	case "useip4", "useipv4", "use_ip4", "use_ipv4", "use_ip_v4", "use-ip4", "use-ipv4", "use-ip-v4":
+		config.QueryStrategy = dns.QueryStrategy_USE_IP4
+	case "useip6", "useipv6", "use_ip6", "use_ipv6", "use_ip_v6", "use-ip6", "use-ipv6", "use-ip-v6":
+		config.QueryStrategy = dns.QueryStrategy_USE_IP6
+	}
+
+	switch strings.ToLower(c.CacheStrategy) {
+	case "noerror":
+		config.CacheStrategy = dns.CacheStrategy_Cache_NOERROR
+	case "all":
+		config.CacheStrategy = dns.CacheStrategy_Cache_ALL
+	case "disable", "none":
+		config.CacheStrategy = dns.CacheStrategy_Cache_DISABLE
+	}
+
 	for _, server := range c.Servers {
 		ns, err := server.Build()
 		if err != nil {
@@ -164,7 +224,7 @@ func (c *DNSConfig) Build() (*dns.Config, error) {
 					return nil, newError("empty domain type of rule: ", domain)
 				}
 				mapping := getHostMapping(addr)
-				mapping.Type = dns.DomainMatchingType_Subdomain
+				mapping.Type = dm.MatchingType_Subdomain
 				mapping.Domain = domainName
 				mappings = append(mappings, mapping)
 
@@ -173,13 +233,13 @@ func (c *DNSConfig) Build() (*dns.Config, error) {
 				if len(listName) == 0 {
 					return nil, newError("empty geosite rule: ", domain)
 				}
-				domains, err := loadGeositeWithAttr("geosite.dat", listName)
+				domains, err := geosite.LoadGeositeWithAttr("geosite.dat", listName)
 				if err != nil {
 					return nil, newError("failed to load geosite: ", listName).Base(err)
 				}
 				for _, d := range domains {
 					mapping := getHostMapping(addr)
-					mapping.Type = typeMap[d.Type]
+					mapping.Type = d.Type
 					mapping.Domain = d.Value
 					mappings = append(mappings, mapping)
 				}
@@ -190,7 +250,7 @@ func (c *DNSConfig) Build() (*dns.Config, error) {
 					return nil, newError("empty regexp type of rule: ", domain)
 				}
 				mapping := getHostMapping(addr)
-				mapping.Type = dns.DomainMatchingType_Regex
+				mapping.Type = dm.MatchingType_Regex
 				mapping.Domain = regexpVal
 				mappings = append(mappings, mapping)
 
@@ -200,7 +260,7 @@ func (c *DNSConfig) Build() (*dns.Config, error) {
 					return nil, newError("empty keyword type of rule: ", domain)
 				}
 				mapping := getHostMapping(addr)
-				mapping.Type = dns.DomainMatchingType_Keyword
+				mapping.Type = dm.MatchingType_Keyword
 				mapping.Domain = keywordVal
 				mappings = append(mappings, mapping)
 
@@ -210,13 +270,13 @@ func (c *DNSConfig) Build() (*dns.Config, error) {
 					return nil, newError("empty full domain type of rule: ", domain)
 				}
 				mapping := getHostMapping(addr)
-				mapping.Type = dns.DomainMatchingType_Full
+				mapping.Type = dm.MatchingType_Full
 				mapping.Domain = fullVal
 				mappings = append(mappings, mapping)
 
 			case strings.HasPrefix(domain, "dotless:"):
 				mapping := getHostMapping(addr)
-				mapping.Type = dns.DomainMatchingType_Regex
+				mapping.Type = dm.MatchingType_Regex
 				switch substr := domain[8:]; {
 				case substr == "":
 					mapping.Domain = "^[^.]*$"
@@ -234,20 +294,20 @@ func (c *DNSConfig) Build() (*dns.Config, error) {
 				}
 				filename := kv[0]
 				list := kv[1]
-				domains, err := loadGeositeWithAttr(filename, list)
+				domains, err := geosite.LoadGeositeWithAttr(filename, list)
 				if err != nil {
 					return nil, newError("failed to load domain list: ", list, " from ", filename).Base(err)
 				}
 				for _, d := range domains {
 					mapping := getHostMapping(addr)
-					mapping.Type = typeMap[d.Type]
+					mapping.Type = d.Type
 					mapping.Domain = d.Value
 					mappings = append(mappings, mapping)
 				}
 
 			default:
 				mapping := getHostMapping(addr)
-				mapping.Type = dns.DomainMatchingType_Full
+				mapping.Type = dm.MatchingType_Full
 				mapping.Domain = domain
 				mappings = append(mappings, mapping)
 			}

infra/conf/dns_test.go

@@ -8,8 +8,9 @@ import (
 
 	"github.com/golang/protobuf/proto"
 	"github.com/xtls/xray-core/app/dns"
-	"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/geosite"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/platform"
 	"github.com/xtls/xray-core/common/platform/filesystem"
@@ -30,12 +31,12 @@ func init() {
 	common.Must(err)
 	defer geositeFile.Close()
 
-	list := &router.GeoSiteList{
-		Entry: []*router.GeoSite{
+	list := &geosite.GeoSiteList{
+		Entry: []*geosite.GeoSite{
 			{
 				CountryCode: "TEST",
-				Domain: []*router.Domain{
-					{Type: router.Domain_Full, Value: "example.com"},
+				Domain: []*geosite.Domain{
+					{Type: geosite.Domain_Full, Value: "example.com"},
 				},
 			},
 		},
@@ -67,17 +68,23 @@ func TestDNSConfigParsing(t *testing.T) {
 			Input: `{
 				"servers": [{
 					"address": "8.8.8.8",
+					"clientIp": "10.0.0.1",
 					"port": 5353,
+					"skipFallback": true,
 					"domains": ["domain:example.com"]
 				}],
 				"hosts": {
 					"example.com": "127.0.0.1",
+					"xtls.github.io": ["1.2.3.4", "5.6.7.8"],
 					"domain:example.com": "google.com",
-					"geosite:test": "10.0.0.1",
-					"keyword:google": "8.8.8.8",
+					"geosite:test": ["127.0.0.1", "127.0.0.2"],
+					"keyword:google": ["8.8.8.8", "8.8.4.4"],
 					"regexp:.*\\.com": "8.8.4.4"
 				},
-				"clientIp": "10.0.0.1"
+				"clientIp": "10.0.0.1",
+				"queryStrategy": "UseIPv4",
+				"cacheStrategy": "disable",
+				"disableFallback": true
 			}`,
 			Parser: parserCreator(),
 			Output: &dns.Config{
@@ -92,10 +99,12 @@ func TestDNSConfigParsing(t *testing.T) {
 							Network: net.Network_UDP,
 							Port:    5353,
 						},
-						PrioritizedDomain: []*dns.NameServer_PriorityDomain{
+						ClientIp:     []byte{10, 0, 0, 1},
+						SkipFallback: true,
+						PrioritizedDomain: []*domain.Domain{
 							{
-								Type:   dns.DomainMatchingType_Subdomain,
-								Domain: "example.com",
+								Type:  domain.MatchingType_Subdomain,
+								Value: "example.com",
 							},
 						},
 						OriginalRules: []*dns.NameServer_OriginalRule{
@@ -108,32 +117,40 @@ func TestDNSConfigParsing(t *testing.T) {
 				},
 				StaticHosts: []*dns.Config_HostMapping{
 					{
-						Type:          dns.DomainMatchingType_Subdomain,
+						Type:          domain.MatchingType_Subdomain,
 						Domain:        "example.com",
 						ProxiedDomain: "google.com",
 					},
 					{
-						Type:   dns.DomainMatchingType_Full,
+						Type:   domain.MatchingType_Full,
 						Domain: "example.com",
 						Ip:     [][]byte{{127, 0, 0, 1}},
 					},
 					{
-						Type:   dns.DomainMatchingType_Full,
+						Type:   domain.MatchingType_Full,
 						Domain: "example.com",
-						Ip:     [][]byte{{10, 0, 0, 1}},
+						Ip:     [][]byte{{127, 0, 0, 1}, {127, 0, 0, 2}},
 					},
 					{
-						Type:   dns.DomainMatchingType_Keyword,
+						Type:   domain.MatchingType_Keyword,
 						Domain: "google",
-						Ip:     [][]byte{{8, 8, 8, 8}},
+						Ip:     [][]byte{{8, 8, 8, 8}, {8, 8, 4, 4}},
 					},
 					{
-						Type:   dns.DomainMatchingType_Regex,
+						Type:   domain.MatchingType_Regex,
 						Domain: ".*\\.com",
 						Ip:     [][]byte{{8, 8, 4, 4}},
 					},
+					{
+						Type:   domain.MatchingType_Full,
+						Domain: "xtls.github.io",
+						Ip:     [][]byte{{1, 2, 3, 4}, {5, 6, 7, 8}},
+					},
 				},
-				ClientIp: []byte{10, 0, 0, 1},
+				ClientIp:        []byte{10, 0, 0, 1},
+				QueryStrategy:   dns.QueryStrategy_USE_IP4,
+				CacheStrategy:   dns.CacheStrategy_Cache_DISABLE,
+				DisableFallback: true,
 			},
 		},
 	})

infra/conf/freedom.go

@@ -22,11 +22,11 @@ func (c *FreedomConfig) Build() (proto.Message, error) {
 	config := new(freedom.Config)
 	config.DomainStrategy = freedom.Config_AS_IS
 	switch strings.ToLower(c.DomainStrategy) {
-	case "useip", "use_ip":
+	case "useip", "use_ip", "use-ip":
 		config.DomainStrategy = freedom.Config_USE_IP
-	case "useip4", "useipv4", "use_ipv4", "use_ip_v4", "use_ip4":
+	case "useip4", "useipv4", "use_ip4", "use_ipv4", "use_ip_v4", "use-ip4", "use-ipv4", "use-ip-v4":
 		config.DomainStrategy = freedom.Config_USE_IP4
-	case "useip6", "useipv6", "use_ipv6", "use_ip_v6", "use_ip6":
+	case "useip6", "useipv6", "use_ip6", "use_ipv6", "use_ip_v6", "use-ip6", "use-ipv6", "use-ip-v6":
 		config.DomainStrategy = freedom.Config_USE_IP6
 	}
 

infra/conf/router.go

@@ -2,15 +2,14 @@ package conf
 
 import (
 	"encoding/json"
-	"runtime"
 	"strconv"
 	"strings"
 
-	"github.com/golang/protobuf/proto"
-
 	"github.com/xtls/xray-core/app/router"
+	"github.com/xtls/xray-core/common/matcher/domain/conf"
+	"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/filesystem"
 )
 
 type RouterRulesConfig struct {
@@ -53,11 +52,11 @@ func (c *RouterConfig) getDomainStrategy() router.Config_DomainStrategy {
 	}
 
 	switch strings.ToLower(ds) {
-	case "alwaysip":
+	case "alwaysip", "always_ip", "always-ip":
 		return router.Config_UseIp
-	case "ipifnonmatch":
+	case "ipifnonmatch", "ip_if_non_match", "ip-if-non-match":
 		return router.Config_IpIfNonMatch
-	case "ipondemand":
+	case "ipondemand", "ip_on_demand", "ip-on-demand":
 		return router.Config_IpOnDemand
 	default:
 		return router.Config_AsIs
@@ -95,12 +94,13 @@ func (c *RouterConfig) Build() (*router.Config, error) {
 }
 
 type RouterRule struct {
-	Type        string `json:"type"`
-	OutboundTag string `json:"outboundTag"`
-	BalancerTag string `json:"balancerTag"`
+	Type          string `json:"type"`
+	OutboundTag   string `json:"outboundTag"`
+	BalancerTag   string `json:"balancerTag"`
+	DomainMatcher string `json:"domainMatcher"`
 }
 
-func ParseIP(s string) (*router.CIDR, error) {
+func ParseIP(s string) (*geoip.CIDR, error) {
 	var addr, mask string
 	i := strings.Index(s, "/")
 	if i < 0 {
@@ -123,7 +123,7 @@ func ParseIP(s string) (*router.CIDR, error) {
 		if bits > 32 {
 			return nil, newError("invalid network mask for router: ", bits)
 		}
-		return &router.CIDR{
+		return &geoip.CIDR{
 			Ip:     []byte(ip.IP()),
 			Prefix: bits,
 		}, nil
@@ -139,8 +139,8 @@ func ParseIP(s string) (*router.CIDR, error) {
 		if bits > 128 {
 			return nil, newError("invalid network mask for router: ", bits)
 		}
-		return &router.CIDR{
-			Ip:     []byte(ip.IP()),
+		return &geoip.CIDR{
+			Ip:     ip.IP(),
 			Prefix: bits,
 		}, nil
 	default:
@@ -148,314 +148,6 @@ func ParseIP(s string) (*router.CIDR, error) {
 	}
 }
 
-func loadGeoIP(code string) ([]*router.CIDR, error) {
-	return loadIP("geoip.dat", code)
-}
-
-var (
-	FileCache = make(map[string][]byte)
-	IPCache   = make(map[string]*router.GeoIP)
-	SiteCache = make(map[string]*router.GeoSite)
-)
-
-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 loadIP(file, code string) ([]*router.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 geoip router.GeoIP
-		if err := proto.Unmarshal(bs, &geoip); err != nil {
-			return nil, newError("error unmarshal IP in ", file, ": ", code).Base(err)
-		}
-		defer runtime.GC()     // or debug.FreeOSMemory()
-		return geoip.Cidr, nil // do not cache geoip
-		IPCache[index] = &geoip
-	}
-	return IPCache[index].Cidr, nil
-}
-
-func loadSite(file, code string) ([]*router.Domain, error) {
-	index := file + ":" + code
-	if SiteCache[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("list not found in ", file, ": ", code)
-		}
-		var geosite router.GeoSite
-		if err := proto.Unmarshal(bs, &geosite); err != nil {
-			return nil, newError("error unmarshal Site in ", file, ": ", code).Base(err)
-		}
-		defer runtime.GC()         // or debug.FreeOSMemory()
-		return geosite.Domain, nil // do not cache geosite
-		SiteCache[index] = &geosite
-	}
-	return SiteCache[index].Domain, 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:]
-	}
-}
-
-type AttributeMatcher interface {
-	Match(*router.Domain) bool
-}
-
-type BooleanMatcher string
-
-func (m BooleanMatcher) Match(domain *router.Domain) bool {
-	for _, attr := range domain.Attribute {
-		if attr.Key == string(m) {
-			return true
-		}
-	}
-	return false
-}
-
-type AttributeList struct {
-	matcher []AttributeMatcher
-}
-
-func (al *AttributeList) Match(domain *router.Domain) bool {
-	for _, matcher := range al.matcher {
-		if !matcher.Match(domain) {
-			return false
-		}
-	}
-	return true
-}
-
-func (al *AttributeList) IsEmpty() bool {
-	return len(al.matcher) == 0
-}
-
-func parseAttrs(attrs []string) *AttributeList {
-	al := new(AttributeList)
-	for _, attr := range attrs {
-		lc := strings.ToLower(attr)
-		al.matcher = append(al.matcher, BooleanMatcher(lc))
-	}
-	return al
-}
-
-func loadGeositeWithAttr(file string, siteWithAttr string) ([]*router.Domain, error) {
-	parts := strings.Split(siteWithAttr, "@")
-	if len(parts) == 0 {
-		return nil, newError("empty site")
-	}
-	country := strings.ToUpper(parts[0])
-	attrs := parseAttrs(parts[1:])
-	domains, err := loadSite(file, country)
-	if err != nil {
-		return nil, err
-	}
-
-	if attrs.IsEmpty() {
-		return domains, nil
-	}
-
-	filteredDomains := make([]*router.Domain, 0, len(domains))
-	for _, domain := range domains {
-		if attrs.Match(domain) {
-			filteredDomains = append(filteredDomains, domain)
-		}
-	}
-
-	return filteredDomains, nil
-}
-
-func parseDomainRule(domain string) ([]*router.Domain, error) {
-	if strings.HasPrefix(domain, "geosite:") {
-		country := strings.ToUpper(domain[8:])
-		domains, err := 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 := loadGeositeWithAttr(filename, country)
-		if err != nil {
-			return nil, newError("failed to load external sites: ", country, " from ", filename).Base(err)
-		}
-		return domains, nil
-	}
-
-	domainRule := new(router.Domain)
-	switch {
-	case strings.HasPrefix(domain, "regexp:"):
-		domainRule.Type = router.Domain_Regex
-		domainRule.Value = domain[7:]
-
-	case strings.HasPrefix(domain, "domain:"):
-		domainRule.Type = router.Domain_Domain
-		domainRule.Value = domain[7:]
-
-	case strings.HasPrefix(domain, "full:"):
-		domainRule.Type = router.Domain_Full
-		domainRule.Value = domain[5:]
-
-	case strings.HasPrefix(domain, "keyword:"):
-		domainRule.Type = router.Domain_Plain
-		domainRule.Value = domain[8:]
-
-	case strings.HasPrefix(domain, "dotless:"):
-		domainRule.Type = router.Domain_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 = router.Domain_Plain
-		domainRule.Value = domain
-	}
-	return []*router.Domain{domainRule}, nil
-}
-
-func toCidrList(ips StringList) ([]*router.GeoIP, error) {
-	var geoipList []*router.GeoIP
-	var customCidrs []*router.CIDR
-
-	for _, ip := range ips {
-		if strings.HasPrefix(ip, "geoip:") {
-			country := ip[6:]
-			geoip, err := loadGeoIP(strings.ToUpper(country))
-			if err != nil {
-				return nil, newError("failed to load GeoIP: ", country).Base(err)
-			}
-
-			geoipList = append(geoipList, &router.GeoIP{
-				CountryCode: strings.ToUpper(country),
-				Cidr:        geoip,
-			})
-			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]
-			geoip, err := loadIP(filename, strings.ToUpper(country))
-			if err != nil {
-				return nil, newError("failed to load IPs: ", country, " from ", filename).Base(err)
-			}
-
-			geoipList = append(geoipList, &router.GeoIP{
-				CountryCode: strings.ToUpper(filename + "_" + country),
-				Cidr:        geoip,
-			})
-
-			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, &router.GeoIP{
-			Cidr: customCidrs,
-		})
-	}
-
-	return geoipList, nil
-}
-
 func parseFieldRule(msg json.RawMessage) (*router.RoutingRule, error) {
 	type RawFieldRule struct {
 		RouterRule
@@ -491,9 +183,13 @@ func parseFieldRule(msg json.RawMessage) (*router.RoutingRule, error) {
 		return nil, newError("neither outboundTag nor balancerTag is specified in routing rule")
 	}
 
+	if rawFieldRule.DomainMatcher != "" {
+		rule.DomainMatcher = rawFieldRule.DomainMatcher
+	}
+
 	if rawFieldRule.Domain != nil {
 		for _, domain := range *rawFieldRule.Domain {
-			rules, err := parseDomainRule(domain)
+			rules, err := conf.ParseDomainRule(domain)
 			if err != nil {
 				return nil, newError("failed to parse domain rule: ", domain).Base(err)
 			}
@@ -503,7 +199,7 @@ func parseFieldRule(msg json.RawMessage) (*router.RoutingRule, error) {
 
 	if rawFieldRule.Domains != nil {
 		for _, domain := range *rawFieldRule.Domains {
-			rules, err := parseDomainRule(domain)
+			rules, err := conf.ParseDomainRule(domain)
 			if err != nil {
 				return nil, newError("failed to parse domain rule: ", domain).Base(err)
 			}
@@ -512,7 +208,7 @@ func parseFieldRule(msg json.RawMessage) (*router.RoutingRule, error) {
 	}
 
 	if rawFieldRule.IP != nil {
-		geoipList, err := toCidrList(*rawFieldRule.IP)
+		geoipList, err := geoip.ParseIPList(*rawFieldRule.IP)
 		if err != nil {
 			return nil, err
 		}
@@ -528,7 +224,7 @@ func parseFieldRule(msg json.RawMessage) (*router.RoutingRule, error) {
 	}
 
 	if rawFieldRule.SourceIP != nil {
-		geoipList, err := toCidrList(*rawFieldRule.SourceIP)
+		geoipList, err := geoip.ParseIPList(*rawFieldRule.SourceIP)
 		if err != nil {
 			return nil, err
 		}
@@ -570,21 +266,21 @@ func ParseRule(msg json.RawMessage) (*router.RoutingRule, error) {
 	if err != nil {
 		return nil, newError("invalid router rule").Base(err)
 	}
-	if rawRule.Type == "field" {
+	if strings.EqualFold(rawRule.Type, "field") {
 		fieldrule, err := parseFieldRule(msg)
 		if err != nil {
 			return nil, newError("invalid field rule").Base(err)
 		}
 		return fieldrule, nil
 	}
-	if rawRule.Type == "chinaip" {
+	if strings.EqualFold(rawRule.Type, "chinaip") {
 		chinaiprule, err := parseChinaIPRule(msg)
 		if err != nil {
 			return nil, newError("invalid chinaip rule").Base(err)
 		}
 		return chinaiprule, nil
 	}
-	if rawRule.Type == "chinasites" {
+	if strings.EqualFold(rawRule.Type, "chinasites") {
 		chinasitesrule, err := parseChinaSitesRule(msg)
 		if err != nil {
 			return nil, newError("invalid chinasites rule").Base(err)
@@ -600,7 +296,7 @@ func parseChinaIPRule(data []byte) (*router.RoutingRule, error) {
 	if err != nil {
 		return nil, newError("invalid router rule").Base(err)
 	}
-	chinaIPs, err := loadGeoIP("CN")
+	chinaIPs, err := geoip.LoadGeoIP("CN")
 	if err != nil {
 		return nil, newError("failed to load geoip:cn").Base(err)
 	}
@@ -618,7 +314,7 @@ func parseChinaSitesRule(data []byte) (*router.RoutingRule, error) {
 	if err != nil {
 		return nil, newError("invalid router rule").Base(err).AtError()
 	}
-	domains, err := loadGeositeWithAttr("geosite.dat", "CN")
+	domains, err := geosite.LoadGeositeWithAttr("geosite.dat", "CN")
 	if err != nil {
 		return nil, newError("failed to load geosite:cn.").Base(err)
 	}

infra/conf/router_test.go

@@ -7,6 +7,8 @@ import (
 	"github.com/golang/protobuf/proto"
 
 	"github.com/xtls/xray-core/app/router"
+	"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/infra/conf"
 )
@@ -73,13 +75,13 @@ func TestRouterConfig(t *testing.T) {
 				},
 				Rule: []*router.RoutingRule{
 					{
-						Domain: []*router.Domain{
+						Domain: []*domain.Domain{
 							{
-								Type:  router.Domain_Plain,
+								Type:  domain.MatchingType_Keyword,
 								Value: "baidu.com",
 							},
 							{
-								Type:  router.Domain_Plain,
+								Type:  domain.MatchingType_Keyword,
 								Value: "qq.com",
 							},
 						},
@@ -88,9 +90,9 @@ func TestRouterConfig(t *testing.T) {
 						},
 					},
 					{
-						Geoip: []*router.GeoIP{
+						Geoip: []*geoip.GeoIP{
 							{
-								Cidr: []*router.CIDR{
+								Cidr: []*geoip.CIDR{
 									{
 										Ip:     []byte{10, 0, 0, 0},
 										Prefix: 8,
@@ -161,13 +163,13 @@ func TestRouterConfig(t *testing.T) {
 				DomainStrategy: router.Config_IpIfNonMatch,
 				Rule: []*router.RoutingRule{
 					{
-						Domain: []*router.Domain{
+						Domain: []*domain.Domain{
 							{
-								Type:  router.Domain_Plain,
+								Type:  domain.MatchingType_Keyword,
 								Value: "baidu.com",
 							},
 							{
-								Type:  router.Domain_Plain,
+								Type:  domain.MatchingType_Keyword,
 								Value: "qq.com",
 							},
 						},
@@ -176,9 +178,9 @@ func TestRouterConfig(t *testing.T) {
 						},
 					},
 					{
-						Geoip: []*router.GeoIP{
+						Geoip: []*geoip.GeoIP{
 							{
-								Cidr: []*router.CIDR{
+								Cidr: []*geoip.CIDR{
 									{
 										Ip:     []byte{10, 0, 0, 0},
 										Prefix: 8,
@@ -224,13 +226,13 @@ func TestRouterConfig(t *testing.T) {
 				DomainStrategy: router.Config_AsIs,
 				Rule: []*router.RoutingRule{
 					{
-						Domain: []*router.Domain{
+						Domain: []*domain.Domain{
 							{
-								Type:  router.Domain_Plain,
+								Type:  domain.MatchingType_Keyword,
 								Value: "baidu.com",
 							},
 							{
-								Type:  router.Domain_Plain,
+								Type:  domain.MatchingType_Keyword,
 								Value: "qq.com",
 							},
 						},
@@ -239,9 +241,9 @@ func TestRouterConfig(t *testing.T) {
 						},
 					},
 					{
-						Geoip: []*router.GeoIP{
+						Geoip: []*geoip.GeoIP{
 							{
-								Cidr: []*router.CIDR{
+								Cidr: []*geoip.CIDR{
 									{
 										Ip:     []byte{10, 0, 0, 0},
 										Prefix: 8,

infra/conf/transport_internet.go

@@ -321,6 +321,7 @@ type TLSConfig struct {
 	MaxVersion               string           `json:"maxVersion"`
 	CipherSuites             string           `json:"cipherSuites"`
 	PreferServerCipherSuites bool             `json:"preferServerCipherSuites"`
+	Fingerprint              string           `json:"fingerprint"`
 }
 
 // Build implements Buildable.
@@ -348,6 +349,7 @@ func (c *TLSConfig) Build() (proto.Message, error) {
 	config.MaxVersion = c.MaxVersion
 	config.CipherSuites = c.CipherSuites
 	config.PreferServerCipherSuites = c.PreferServerCipherSuites
+	config.Fingerprint = strings.ToLower(c.Fingerprint)
 	return config, nil
 }
 
@@ -476,22 +478,19 @@ type SocketConfig struct {
 
 // Build implements Buildable.
 func (c *SocketConfig) Build() (*internet.SocketConfig, error) {
-	tfo := int32(-1)
+	tfo := int32(0) // don't invoke setsockopt() for TFO
 	if c.TFO != nil {
 		switch v := c.TFO.(type) {
 		case bool:
 			if v {
 				tfo = 256
 			} else {
-				tfo = 0
+				tfo = -1 // TFO need to be disabled
 			}
 		case float64:
-			if v < 0 {
-				return nil, newError("tcpFastOpen: only boolean and non-negative integer value is acceptable")
-			}
 			tfo = int32(math.Min(v, math.MaxInt32))
 		default:
-			return nil, newError("tcpFastOpen: only boolean and non-negative integer value is acceptable")
+			return nil, newError("tcpFastOpen: only boolean and integer value is acceptable")
 		}
 	}
 	var tproxy internet.SocketConfig_TProxyMode

infra/conf/transport_test.go

@@ -31,6 +31,13 @@ func TestSocketConfig(t *testing.T) {
 		}
 	}
 
+	// test "tcpFastOpen": true, queue length 256 is expected. other parameters are tested here too
+	expectedOutput := &internet.SocketConfig{
+		Mark:           1,
+		Tfo:            256,
+		DomainStrategy: internet.DomainStrategy_USE_IP,
+		DialerProxy:    "tag",
+	}
 	runMultiTestCase(t, []TestCase{
 		{
 			Input: `{
@@ -40,38 +47,118 @@ func TestSocketConfig(t *testing.T) {
 				"dialerProxy": "tag"
 			}`,
 			Parser: createParser(),
-			Output: &internet.SocketConfig{
-				Mark:           1,
-				Tfo:            256,
-				DomainStrategy: internet.DomainStrategy_USE_IP,
-				DialerProxy:    "tag",
-			},
+			Output: expectedOutput,
 		},
 	})
+	if expectedOutput.ParseTFOValue() != 256 {
+		t.Fatalf("unexpected parsed TFO value, which should be 256")
+	}
+
+	// test "tcpFastOpen": false, disabled TFO is expected
+	expectedOutput = &internet.SocketConfig{
+		Mark: 0,
+		Tfo:  -1,
+	}
 	runMultiTestCase(t, []TestCase{
 		{
 			Input: `{
 				"tcpFastOpen": false
 			}`,
 			Parser: createParser(),
-			Output: &internet.SocketConfig{
-				Mark: 0,
-				Tfo:  0,
-			},
+			Output: expectedOutput,
 		},
 	})
+	if expectedOutput.ParseTFOValue() != 0 {
+		t.Fatalf("unexpected parsed TFO value, which should be 0")
+	}
+
+	// test "tcpFastOpen": 65535, queue length 65535 is expected
+	expectedOutput = &internet.SocketConfig{
+		Mark: 0,
+		Tfo:  65535,
+	}
 	runMultiTestCase(t, []TestCase{
 		{
 			Input: `{
 				"tcpFastOpen": 65535
 			}`,
 			Parser: createParser(),
-			Output: &internet.SocketConfig{
-				Mark: 0,
-				Tfo:  65535,
-			},
+			Output: expectedOutput,
 		},
 	})
+	if expectedOutput.ParseTFOValue() != 65535 {
+		t.Fatalf("unexpected parsed TFO value, which should be 65535")
+	}
+
+	// test "tcpFastOpen": -65535, disable TFO is expected
+	expectedOutput = &internet.SocketConfig{
+		Mark: 0,
+		Tfo:  -65535,
+	}
+	runMultiTestCase(t, []TestCase{
+		{
+			Input: `{
+				"tcpFastOpen": -65535
+			}`,
+			Parser: createParser(),
+			Output: expectedOutput,
+		},
+	})
+	if expectedOutput.ParseTFOValue() != 0 {
+		t.Fatalf("unexpected parsed TFO value, which should be 0")
+	}
+
+	// test "tcpFastOpen": 0, no operation is expected
+	expectedOutput = &internet.SocketConfig{
+		Mark: 0,
+		Tfo:  0,
+	}
+	runMultiTestCase(t, []TestCase{
+		{
+			Input: `{
+				"tcpFastOpen": 0
+			}`,
+			Parser: createParser(),
+			Output: expectedOutput,
+		},
+	})
+	if expectedOutput.ParseTFOValue() != -1 {
+		t.Fatalf("unexpected parsed TFO value, which should be -1")
+	}
+
+	// test omit "tcpFastOpen", no operation is expected
+	expectedOutput = &internet.SocketConfig{
+		Mark: 0,
+		Tfo:  0,
+	}
+	runMultiTestCase(t, []TestCase{
+		{
+			Input:  `{}`,
+			Parser: createParser(),
+			Output: expectedOutput,
+		},
+	})
+	if expectedOutput.ParseTFOValue() != -1 {
+		t.Fatalf("unexpected parsed TFO value, which should be -1")
+	}
+
+	// test "tcpFastOpen": null, no operation is expected
+	expectedOutput = &internet.SocketConfig{
+		Mark: 0,
+		Tfo:  0,
+	}
+	runMultiTestCase(t, []TestCase{
+		{
+			Input: `{
+				"tcpFastOpen": null
+			}`,
+			Parser: createParser(),
+			Output: expectedOutput,
+		},
+	})
+	if expectedOutput.ParseTFOValue() != -1 {
+		t.Fatalf("unexpected parsed TFO value, which should be -1")
+	}
 }
 
 func TestTransportConfig(t *testing.T) {

infra/conf/xray.go

@@ -2,7 +2,7 @@ package conf
 
 import (
 	"encoding/json"
-	"github.com/xtls/xray-core/transport/internet"
+
 	"log"
 	"os"
 	"strings"
@@ -10,8 +10,12 @@ import (
 	"github.com/xtls/xray-core/app/dispatcher"
 	"github.com/xtls/xray-core/app/proxyman"
 	"github.com/xtls/xray-core/app/stats"
+	"github.com/xtls/xray-core/common/matcher/domain"
+	"github.com/xtls/xray-core/common/matcher/domain/conf"
+	"github.com/xtls/xray-core/common/matcher/geoip"
 	"github.com/xtls/xray-core/common/serial"
 	core "github.com/xtls/xray-core/core"
+	"github.com/xtls/xray-core/transport/internet"
 	"github.com/xtls/xray-core/transport/internet/xtls"
 )
 
@@ -62,6 +66,7 @@ type SniffingConfig struct {
 	Enabled         bool        `json:"enabled"`
 	DestOverride    *StringList `json:"destOverride"`
 	DomainsExcluded *StringList `json:"domainsExcluded"`
+	IPsExcluded     *StringList `json:"ipsExcluded"`
 	MetadataOnly    bool        `json:"metadataOnly"`
 }
 
@@ -83,17 +88,31 @@ func (c *SniffingConfig) Build() (*proxyman.SniffingConfig, error) {
 		}
 	}
 
-	var d []string
+	var exDomain []*domain.Domain
 	if c.DomainsExcluded != nil {
-		for _, domain := range *c.DomainsExcluded {
-			d = append(d, strings.ToLower(domain))
+		for _, dmr := range *c.DomainsExcluded {
+			if dm, err := conf.ParseDomainRule(dmr); err == nil {
+				exDomain = append(exDomain, dm...)
+			} else {
+				return nil, newError("failed to parse excluded domain").Base(err)
+			}
 		}
 	}
 
+	var exIP []*geoip.GeoIP
+	if c.IPsExcluded != nil {
+		exip, err := geoip.ParseIPList(*c.IPsExcluded)
+		if err != nil {
+			return nil, newError("failed to parse excluded ip").Base(err)
+		}
+		exIP = exip
+	}
+
 	return &proxyman.SniffingConfig{
 		Enabled:             c.Enabled,
 		DestinationOverride: p,
-		DomainsExcluded:     d,
+		DomainsExcluded:     exDomain,
+		IpsExcluded:         exIP,
 		MetadataOnly:        c.MetadataOnly,
 	}, nil
 }

infra/conf/xray_test.go

@@ -2,6 +2,7 @@ package conf_test
 
 import (
 	"encoding/json"
+	"github.com/xtls/xray-core/common/matcher/domain"
 	"reflect"
 	"testing"
 
@@ -13,6 +14,7 @@ import (
 	"github.com/xtls/xray-core/app/router"
 	"github.com/xtls/xray-core/common"
 	clog "github.com/xtls/xray-core/common/log"
+	"github.com/xtls/xray-core/common/matcher/geoip"
 	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/protocol"
 	"github.com/xtls/xray-core/common/serial"
@@ -154,9 +156,9 @@ func TestXrayConfig(t *testing.T) {
 						DomainStrategy: router.Config_AsIs,
 						Rule: []*router.RoutingRule{
 							{
-								Geoip: []*router.GeoIP{
+								Geoip: []*geoip.GeoIP{
 									{
-										Cidr: []*router.CIDR{
+										Cidr: []*geoip.CIDR{
 											{
 												Ip:     []byte{10, 0, 0, 0},
 												Prefix: 8,
@@ -371,6 +373,52 @@ func TestMuxConfig_Build(t *testing.T) {
 	}
 }
 
+func TestSniffingConfig_Build(t *testing.T) {
+	tests := []struct {
+		name   string
+		fields string
+		want   *proxyman.SniffingConfig
+	}{
+		{"default", `
+{
+	"enabled": true, 
+	"destOverride": ["tls"],
+	"domainsExcluded": ["domain:google.com"],
+	"ipsExcluded": ["8.8.8.8"]
+}`, &proxyman.SniffingConfig{
+			Enabled:             true,
+			DestinationOverride: []string{"tls"},
+			DomainsExcluded: []*domain.Domain{
+				{
+					Type:  domain.MatchingType_Subdomain,
+					Value: "google.com",
+				},
+			},
+			IpsExcluded: []*geoip.GeoIP{
+				{
+					Cidr: []*geoip.CIDR{{Ip: []byte{8, 8, 8, 8}, Prefix: 32}},
+				},
+			},
+		}},
+		{"empty def", `{}`, &proxyman.SniffingConfig{
+			Enabled: false,
+		}},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			m := &SniffingConfig{}
+			common.Must(json.Unmarshal([]byte(tt.fields), m))
+			got, err := m.Build()
+			if err != nil {
+				t.Errorf("%v", err)
+			}
+			if !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("SniffingConfig.Build() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
 func TestConfig_Override(t *testing.T) {
 	tests := []struct {
 		name string

main/commands/all/tls/cert.go

@@ -26,6 +26,9 @@ Arguments:
 	-domain=domain_name 
 		The domain name for the certificate.
 
+	-name=common_name 
+		The common name for the certificate.
+
 	-org=organization 
 		The organization name for the certificate.
 

main/run.go

@@ -11,6 +11,7 @@ import (
 	"regexp"
 	"runtime"
 	"runtime/debug"
+	"strings"
 	"syscall"
 
 	"github.com/xtls/xray-core/common/cmdarg"
@@ -31,7 +32,7 @@ Xray. Multiple assign is accepted.
 The -confdir=dir flag sets a dir with multiple json config
 
 The -format=json flag sets the format of config files. 
-Default "json".
+Default "auto".
 
 The -test flag tells Xray to test config files only, 
 without launching the server
@@ -46,7 +47,7 @@ var (
 	configFiles cmdarg.Arg // "Config file for Xray.", the option is customed type, parse in main
 	configDir   string
 	test        = cmdRun.Flag.Bool("test", false, "Test config file only, without launching Xray server.")
-	format      = cmdRun.Flag.String("format", "json", "Format of input file.")
+	format      = cmdRun.Flag.String("format", "auto", "Format of input file.")
 
 	/* We have to do this here because Golang's Test will also need to parse flag, before
 	 * main func in this file is run.
@@ -111,13 +112,26 @@ func dirExists(file string) bool {
 	return err == nil && info.IsDir()
 }
 
+func getRegepxByFormat() string {
+	switch strings.ToLower(*format) {
+	case "json":
+		return `^.+\.json$`
+	case "toml":
+		return `^.+\.toml$`
+	case "yaml", "yml":
+		return `^.+\.(yaml|yml)$`
+	default:
+		return `^.+\.(json|toml|yaml|yml)$`
+	}
+}
+
 func readConfDir(dirPath string) {
 	confs, err := ioutil.ReadDir(dirPath)
 	if err != nil {
 		log.Fatalln(err)
 	}
 	for _, f := range confs {
-		matched, err := regexp.MatchString(`^.+\.(json|toml|yaml|yml)$`, f.Name())
+		matched, err := regexp.MatchString(getRegepxByFormat(), f.Name())
 		if err != nil {
 			log.Fatalln(err)
 		}
@@ -160,7 +174,7 @@ func getConfigFilePath() cmdarg.Arg {
 func getConfigFormat() string {
 	f := core.GetFormatByExtension(*format)
 	if f == "" {
-		f = "json"
+		f = "auto"
 	}
 	return f
 }

proxy/dns/dns.go

@@ -43,6 +43,7 @@ type Handler struct {
 
 func (h *Handler) Init(config *Config, dnsClient dns.Client) error {
 	h.client = dnsClient
+
 	if v, ok := dnsClient.(ownLinkVerifier); ok {
 		h.ownLinkVerifier = v
 	}
@@ -198,22 +199,16 @@ func (h *Handler) handleIPQuery(id uint16, qType dnsmessage.Type, domain string,
 	var err error
 
 	var ttl uint32 = 600
+	var opt dns.Option
 
 	switch qType {
 	case dnsmessage.TypeA:
-		ips, err = h.client.LookupIP(domain, dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: false,
-			FakeEnable: true,
-		})
+		opt = dns.LookupIPv4Only
 	case dnsmessage.TypeAAAA:
-		ips, err = h.client.LookupIP(domain, dns.IPOption{
-			IPv4Enable: false,
-			IPv6Enable: true,
-			FakeEnable: true,
-		})
+		opt = dns.LookupIPv6Only
 	}
 
+	ips, err = h.client.LookupOptions(domain, opt, dns.LookupFake)
 	rcode := dns.RCodeFromError(err)
 	if rcode == 0 && len(ips) == 0 && err != dns.ErrEmptyResponse {
 		newError("ip query").Base(err).WriteToLog()
@@ -228,7 +223,6 @@ func (h *Handler) handleIPQuery(id uint16, qType dnsmessage.Type, domain string,
 		RecursionAvailable: true,
 		RecursionDesired:   true,
 		Response:           true,
-		Authoritative:      true,
 	})
 	builder.EnableCompression()
 	common.Must(builder.StartQuestions())

proxy/freedom/freedom.go

@@ -59,26 +59,14 @@ func (h *Handler) policy() policy.Session {
 }
 
 func (h *Handler) resolveIP(ctx context.Context, domain string, localAddr net.Address) net.Address {
-	var option dns.IPOption = dns.IPOption{
-		IPv4Enable: true,
-		IPv6Enable: true,
-		FakeEnable: false,
-	}
+	var opt dns.Option
 	if h.config.DomainStrategy == Config_USE_IP4 || (localAddr != nil && localAddr.Family().IsIPv4()) {
-		option = dns.IPOption{
-			IPv4Enable: true,
-			IPv6Enable: false,
-			FakeEnable: false,
-		}
+		opt = dns.LookupIPv4Only
 	} else if h.config.DomainStrategy == Config_USE_IP6 || (localAddr != nil && localAddr.Family().IsIPv6()) {
-		option = dns.IPOption{
-			IPv4Enable: false,
-			IPv6Enable: true,
-			FakeEnable: false,
-		}
+		opt = dns.LookupIPv6Only
 	}
 
-	ips, err := h.dns.LookupIP(domain, option)
+	ips, err := h.dns.LookupOptions(domain, opt, dns.LookupNoFake)
 	if err != nil {
 		newError("failed to get IP address for domain ", domain).Base(err).WriteToLog(session.ExportIDToError(ctx))
 	}

testing/mocks/dns.go

@@ -5,36 +5,37 @@
 package mocks
 
 import (
-	gomock "github.com/golang/mock/gomock"
-	dns "github.com/xtls/xray-core/features/dns"
 	net "net"
 	reflect "reflect"
+
+	gomock "github.com/golang/mock/gomock"
+	dns "github.com/xtls/xray-core/features/dns"
 )
 
-// DNSClient is a mock of Client interface
+// DNSClient is a mock of Client interface.
 type DNSClient struct {
 	ctrl     *gomock.Controller
 	recorder *DNSClientMockRecorder
 }
 
-// DNSClientMockRecorder is the mock recorder for DNSClient
+// DNSClientMockRecorder is the mock recorder for DNSClient.
 type DNSClientMockRecorder struct {
 	mock *DNSClient
 }
 
-// NewDNSClient creates a new mock instance
+// NewDNSClient creates a new mock instance.
 func NewDNSClient(ctrl *gomock.Controller) *DNSClient {
 	mock := &DNSClient{ctrl: ctrl}
 	mock.recorder = &DNSClientMockRecorder{mock}
 	return mock
 }
 
-// EXPECT returns an object that allows the caller to indicate expected use
+// EXPECT returns an object that allows the caller to indicate expected use.
 func (m *DNSClient) EXPECT() *DNSClientMockRecorder {
 	return m.recorder
 }
 
-// Close mocks base method
+// Close mocks base method.
 func (m *DNSClient) Close() error {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "Close")
@@ -42,28 +43,48 @@ func (m *DNSClient) Close() error {
 	return ret0
 }
 
-// Close indicates an expected call of Close
+// Close indicates an expected call of Close.
 func (mr *DNSClientMockRecorder) Close() *gomock.Call {
 	mr.mock.ctrl.T.Helper()
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Close", reflect.TypeOf((*DNSClient)(nil).Close))
 }
 
-// LookupIP mocks base method
-func (m *DNSClient) LookupIP(arg0 string, arg1 dns.IPOption) ([]net.IP, error) {
+// LookupIP mocks base method.
+func (m *DNSClient) LookupIP(arg0 string) ([]net.IP, error) {
 	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "LookupIP", arg0, arg1)
+	ret := m.ctrl.Call(m, "LookupIP", arg0)
 	ret0, _ := ret[0].([]net.IP)
 	ret1, _ := ret[1].(error)
 	return ret0, ret1
 }
 
-// LookupIP indicates an expected call of LookupIP
-func (mr *DNSClientMockRecorder) LookupIP(arg0, arg1 interface{}) *gomock.Call {
+// LookupIP indicates an expected call of LookupIP.
+func (mr *DNSClientMockRecorder) LookupIP(arg0 interface{}) *gomock.Call {
 	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "LookupIP", reflect.TypeOf((*DNSClient)(nil).LookupIP), arg0, arg1)
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "LookupIP", reflect.TypeOf((*DNSClient)(nil).LookupIP), arg0)
 }
 
-// Start mocks base method
+// LookupOptions mocks base method.
+func (m *DNSClient) LookupOptions(arg0 string, arg1 ...dns.Option) ([]net.IP, error) {
+	m.ctrl.T.Helper()
+	varargs := []interface{}{arg0}
+	for _, a := range arg1 {
+		varargs = append(varargs, a)
+	}
+	ret := m.ctrl.Call(m, "LookupOptions", varargs...)
+	ret0, _ := ret[0].([]net.IP)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// LookupOptions indicates an expected call of LookupOptions.
+func (mr *DNSClientMockRecorder) LookupOptions(arg0 interface{}, arg1 ...interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	varargs := append([]interface{}{arg0}, arg1...)
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "LookupOptions", reflect.TypeOf((*DNSClient)(nil).LookupOptions), varargs...)
+}
+
+// Start mocks base method.
 func (m *DNSClient) Start() error {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "Start")
@@ -71,13 +92,13 @@ func (m *DNSClient) Start() error {
 	return ret0
 }
 
-// Start indicates an expected call of Start
+// Start indicates an expected call of Start.
 func (mr *DNSClientMockRecorder) Start() *gomock.Call {
 	mr.mock.ctrl.T.Helper()
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Start", reflect.TypeOf((*DNSClient)(nil).Start))
 }
 
-// Type mocks base method
+// Type mocks base method.
 func (m *DNSClient) Type() interface{} {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "Type")
@@ -85,7 +106,7 @@ func (m *DNSClient) Type() interface{} {
 	return ret0
 }
 
-// Type indicates an expected call of Type
+// Type indicates an expected call of Type.
 func (mr *DNSClientMockRecorder) Type() *gomock.Call {
 	mr.mock.ctrl.T.Helper()
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Type", reflect.TypeOf((*DNSClient)(nil).Type))

testing/mocks/io.go

@@ -5,34 +5,35 @@
 package mocks
 
 import (
-	gomock "github.com/golang/mock/gomock"
 	reflect "reflect"
+
+	gomock "github.com/golang/mock/gomock"
 )
 
-// Reader is a mock of Reader interface
+// Reader is a mock of Reader interface.
 type Reader struct {
 	ctrl     *gomock.Controller
 	recorder *ReaderMockRecorder
 }
 
-// ReaderMockRecorder is the mock recorder for Reader
+// ReaderMockRecorder is the mock recorder for Reader.
 type ReaderMockRecorder struct {
 	mock *Reader
 }
 
-// NewReader creates a new mock instance
+// NewReader creates a new mock instance.
 func NewReader(ctrl *gomock.Controller) *Reader {
 	mock := &Reader{ctrl: ctrl}
 	mock.recorder = &ReaderMockRecorder{mock}
 	return mock
 }
 
-// EXPECT returns an object that allows the caller to indicate expected use
+// EXPECT returns an object that allows the caller to indicate expected use.
 func (m *Reader) EXPECT() *ReaderMockRecorder {
 	return m.recorder
 }
 
-// Read mocks base method
+// Read mocks base method.
 func (m *Reader) Read(arg0 []byte) (int, error) {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "Read", arg0)
@@ -41,36 +42,36 @@ func (m *Reader) Read(arg0 []byte) (int, error) {
 	return ret0, ret1
 }
 
-// Read indicates an expected call of Read
+// Read indicates an expected call of Read.
 func (mr *ReaderMockRecorder) Read(arg0 interface{}) *gomock.Call {
 	mr.mock.ctrl.T.Helper()
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Read", reflect.TypeOf((*Reader)(nil).Read), arg0)
 }
 
-// Writer is a mock of Writer interface
+// Writer is a mock of Writer interface.
 type Writer struct {
 	ctrl     *gomock.Controller
 	recorder *WriterMockRecorder
 }
 
-// WriterMockRecorder is the mock recorder for Writer
+// WriterMockRecorder is the mock recorder for Writer.
 type WriterMockRecorder struct {
 	mock *Writer
 }
 
-// NewWriter creates a new mock instance
+// NewWriter creates a new mock instance.
 func NewWriter(ctrl *gomock.Controller) *Writer {
 	mock := &Writer{ctrl: ctrl}
 	mock.recorder = &WriterMockRecorder{mock}
 	return mock
 }
 
-// EXPECT returns an object that allows the caller to indicate expected use
+// EXPECT returns an object that allows the caller to indicate expected use.
 func (m *Writer) EXPECT() *WriterMockRecorder {
 	return m.recorder
 }
 
-// Write mocks base method
+// Write mocks base method.
 func (m *Writer) Write(arg0 []byte) (int, error) {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "Write", arg0)
@@ -79,7 +80,7 @@ func (m *Writer) Write(arg0 []byte) (int, error) {
 	return ret0, ret1
 }
 
-// Write indicates an expected call of Write
+// Write indicates an expected call of Write.
 func (mr *WriterMockRecorder) Write(arg0 interface{}) *gomock.Call {
 	mr.mock.ctrl.T.Helper()
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Write", reflect.TypeOf((*Writer)(nil).Write), arg0)