Merge branch 'master' into dev-wsimprovement

.github/workflows/coverage.yml

@@ -15,7 +15,7 @@ jobs:
       - name: Set up Go 1.x
         uses: actions/setup-go@v2
         with:
-          go-version: ^1.16
+          go-version: ^1.16.2
 
       - name: Checkout codebase
         uses: actions/checkout@v2

.github/workflows/linter.yml

@@ -21,7 +21,7 @@ jobs:
       - name: Set up Go 1.x
         uses: actions/setup-go@v2
         with:
-          go-version: ^1.16
+          go-version: ^1.16.2
 
       - name: Checkout codebase
         uses: actions/checkout@v2

.github/workflows/release.yml

@@ -98,7 +98,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v2
         with:
-          go-version: ^1.16
+          go-version: ^1.16.2
 
       - name: Get project dependencies
         run: go mod download
@@ -164,7 +164,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v2
         with:
-          go-version: ^1.16
+          go-version: ^1.16.2
 
       - uses: actions/download-artifact@v2
         with:

.github/workflows/test.yml

@@ -27,7 +27,7 @@ jobs:
       - name: Set up Go 1.x
         uses: actions/setup-go@v2
         with:
-          go-version: ^1.16
+          go-version: ^1.16.2
 
       - name: Checkout codebase
         uses: actions/checkout@v2

.github/workflows/updateGeofile.yml

@@ -19,7 +19,7 @@ jobs:
 
       - name: push
         run: |
-          git config --local user.email "action@github.com"
+          git config --local user.email "41898282+github-actions[bot]@users.noreply.github.com"
-          git config --local user.name "GitHub Action"
+          git config --local user.name "github-actions[bot]"
           git commit -am "update geoip, geosite"
           git push -v --progress

.gitignore

@@ -22,3 +22,6 @@ v2ray
 v2ctl
 mockgen
 vprotogen
+!infra/vprotogen/
+errorgen
+!common/errors/errorgen/

app/browserforwarder/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.13.0
+// 	protoc        v3.15.6
 // source: app/browserforwarder/config.proto
 
 package browserforwarder
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 // Config is the settings for BrowserForwarder.
 type Config struct {
 	state         protoimpl.MessageState

app/commander/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: app/commander/config.proto
 
 package commander
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	serial "github.com/v2fly/v2ray-core/v4/common/serial"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 // Config is the settings for Commander.
 type Config struct {
 	state         protoimpl.MessageState

app/dispatcher/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: app/dispatcher/config.proto
 
 package dispatcher
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type SessionConfig struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

app/dns/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: app/dns/config.proto
 
 package dns
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	router "github.com/v2fly/v2ray-core/v4/app/router"
 	net "github.com/v2fly/v2ray-core/v4/common/net"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
@@ -23,10 +22,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type DomainMatchingType int32
 
 const (
@@ -79,6 +74,55 @@ func (DomainMatchingType) EnumDescriptor() ([]byte, []int) {
 	return file_app_dns_config_proto_rawDescGZIP(), []int{0}
 }
 
+type QueryStrategy int32
+
+const (
+	QueryStrategy_USE_IP  QueryStrategy = 0
+	QueryStrategy_USE_IP4 QueryStrategy = 1
+	QueryStrategy_USE_IP6 QueryStrategy = 2
+)
+
+// Enum value maps for QueryStrategy.
+var (
+	QueryStrategy_name = map[int32]string{
+		0: "USE_IP",
+		1: "USE_IP4",
+		2: "USE_IP6",
+	}
+	QueryStrategy_value = map[string]int32{
+		"USE_IP":  0,
+		"USE_IP4": 1,
+		"USE_IP6": 2,
+	}
+)
+
+func (x QueryStrategy) Enum() *QueryStrategy {
+	p := new(QueryStrategy)
+	*p = x
+	return p
+}
+
+func (x QueryStrategy) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (QueryStrategy) Descriptor() protoreflect.EnumDescriptor {
+	return file_app_dns_config_proto_enumTypes[1].Descriptor()
+}
+
+func (QueryStrategy) Type() protoreflect.EnumType {
+	return &file_app_dns_config_proto_enumTypes[1]
+}
+
+func (x QueryStrategy) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Use QueryStrategy.Descriptor instead.
+func (QueryStrategy) EnumDescriptor() ([]byte, []int) {
+	return file_app_dns_config_proto_rawDescGZIP(), []int{1}
+}
+
 type NameServer struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -183,7 +227,8 @@ type Config struct {
 	// Tag is the inbound tag of DNS client.
 	Tag string `protobuf:"bytes,6,opt,name=tag,proto3" json:"tag,omitempty"`
 	// DisableCache Disable DNS cache
-	DisableCache bool `protobuf:"varint,8,opt,name=disableCache,proto3" json:"disableCache,omitempty"`
+	DisableCache  bool          `protobuf:"varint,8,opt,name=disableCache,proto3" json:"disableCache,omitempty"`
+	QueryStrategy QueryStrategy `protobuf:"varint,9,opt,name=query_strategy,json=queryStrategy,proto3,enum=v2ray.core.app.dns.QueryStrategy" json:"query_strategy,omitempty"`
 }
 
 func (x *Config) Reset() {
@@ -269,6 +314,13 @@ func (x *Config) GetDisableCache() bool {
 	return false
 }
 
+func (x *Config) GetQueryStrategy() QueryStrategy {
+	if x != nil {
+		return x.QueryStrategy
+	}
+	return QueryStrategy_USE_IP
+}
+
 type NameServer_PriorityDomain struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -494,7 +546,7 @@ var file_app_dns_config_proto_rawDesc = []byte{
 	0x0a, 0x0c, 0x4f, 0x72, 0x69, 0x67, 0x69, 0x6e, 0x61, 0x6c, 0x52, 0x75, 0x6c, 0x65, 0x12, 0x12,
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 	0x6c, 0x65, 0x12, 0x12, 0x0a, 0x04, 0x73, 0x69, 0x7a, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0d,
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 	0x67, 0x12, 0x45, 0x0a, 0x0b, 0x4e, 0x61, 0x6d, 0x65, 0x53, 0x65, 0x72, 0x76, 0x65, 0x72, 0x73,
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 	0x6f, 0x72, 0x65, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x6e, 0x65, 0x74, 0x2e, 0x45,
@@ -517,33 +569,41 @@ var file_app_dns_config_proto_rawDesc = []byte{
 	0x74, 0x73, 0x12, 0x10, 0x0a, 0x03, 0x74, 0x61, 0x67, 0x18, 0x06, 0x20, 0x01, 0x28, 0x09, 0x52,
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+	0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x76, 0x32, 0x66, 0x6c, 0x79, 0x2f, 0x76, 0x32, 0x72,
+	0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x76, 0x34, 0x2f, 0x61, 0x70, 0x70, 0x2f, 0x64,
+	0x6e, 0x73, 0xaa, 0x02, 0x12, 0x56, 0x32, 0x52, 0x61, 0x79, 0x2e, 0x43, 0x6f, 0x72, 0x65, 0x2e,
+	0x41, 0x70, 0x70, 0x2e, 0x44, 0x6e, 0x73, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -558,37 +618,39 @@ 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_enumTypes = make([]protoimpl.EnumInfo, 2)
 var file_app_dns_config_proto_msgTypes = make([]protoimpl.MessageInfo, 6)
 var file_app_dns_config_proto_goTypes = []interface{}{
 	(DomainMatchingType)(0),           // 0: v2ray.core.app.dns.DomainMatchingType
-	(*NameServer)(nil),                // 1: v2ray.core.app.dns.NameServer
+	(QueryStrategy)(0),                // 1: v2ray.core.app.dns.QueryStrategy
-	(*Config)(nil),                    // 2: v2ray.core.app.dns.Config
+	(*NameServer)(nil),                // 2: v2ray.core.app.dns.NameServer
-	(*NameServer_PriorityDomain)(nil), // 3: v2ray.core.app.dns.NameServer.PriorityDomain
+	(*Config)(nil),                    // 3: v2ray.core.app.dns.Config
-	(*NameServer_OriginalRule)(nil),   // 4: v2ray.core.app.dns.NameServer.OriginalRule
+	(*NameServer_PriorityDomain)(nil), // 4: v2ray.core.app.dns.NameServer.PriorityDomain
-	nil,                               // 5: v2ray.core.app.dns.Config.HostsEntry
+	(*NameServer_OriginalRule)(nil),   // 5: v2ray.core.app.dns.NameServer.OriginalRule
-	(*Config_HostMapping)(nil),        // 6: v2ray.core.app.dns.Config.HostMapping
+	nil,                               // 6: v2ray.core.app.dns.Config.HostsEntry
-	(*net.Endpoint)(nil),              // 7: v2ray.core.common.net.Endpoint
+	(*Config_HostMapping)(nil),        // 7: v2ray.core.app.dns.Config.HostMapping
-	(*router.GeoIP)(nil),              // 8: v2ray.core.app.router.GeoIP
+	(*net.Endpoint)(nil),              // 8: v2ray.core.common.net.Endpoint
-	(*net.IPOrDomain)(nil),            // 9: v2ray.core.common.net.IPOrDomain
+	(*router.GeoIP)(nil),              // 9: v2ray.core.app.router.GeoIP
+	(*net.IPOrDomain)(nil),            // 10: v2ray.core.common.net.IPOrDomain
 }
 var file_app_dns_config_proto_depIdxs = []int32{
-	7,  // 0: v2ray.core.app.dns.NameServer.address:type_name -> v2ray.core.common.net.Endpoint
+	8,  // 0: v2ray.core.app.dns.NameServer.address:type_name -> v2ray.core.common.net.Endpoint
-	3,  // 1: v2ray.core.app.dns.NameServer.prioritized_domain:type_name -> v2ray.core.app.dns.NameServer.PriorityDomain
+	4,  // 1: v2ray.core.app.dns.NameServer.prioritized_domain:type_name -> v2ray.core.app.dns.NameServer.PriorityDomain
-	8,  // 2: v2ray.core.app.dns.NameServer.geoip:type_name -> v2ray.core.app.router.GeoIP
+	9,  // 2: v2ray.core.app.dns.NameServer.geoip:type_name -> v2ray.core.app.router.GeoIP
-	4,  // 3: v2ray.core.app.dns.NameServer.original_rules:type_name -> v2ray.core.app.dns.NameServer.OriginalRule
+	5,  // 3: v2ray.core.app.dns.NameServer.original_rules:type_name -> v2ray.core.app.dns.NameServer.OriginalRule
-	7,  // 4: v2ray.core.app.dns.Config.NameServers:type_name -> v2ray.core.common.net.Endpoint
+	8,  // 4: v2ray.core.app.dns.Config.NameServers:type_name -> v2ray.core.common.net.Endpoint
-	1,  // 5: v2ray.core.app.dns.Config.name_server:type_name -> v2ray.core.app.dns.NameServer
+	2,  // 5: v2ray.core.app.dns.Config.name_server:type_name -> v2ray.core.app.dns.NameServer
-	5,  // 6: v2ray.core.app.dns.Config.Hosts:type_name -> v2ray.core.app.dns.Config.HostsEntry
+	6,  // 6: v2ray.core.app.dns.Config.Hosts:type_name -> v2ray.core.app.dns.Config.HostsEntry
-	6,  // 7: v2ray.core.app.dns.Config.static_hosts:type_name -> v2ray.core.app.dns.Config.HostMapping
+	7,  // 7: v2ray.core.app.dns.Config.static_hosts:type_name -> v2ray.core.app.dns.Config.HostMapping
-	0,  // 8: v2ray.core.app.dns.NameServer.PriorityDomain.type:type_name -> v2ray.core.app.dns.DomainMatchingType
+	1,  // 8: v2ray.core.app.dns.Config.query_strategy:type_name -> v2ray.core.app.dns.QueryStrategy
-	9,  // 9: v2ray.core.app.dns.Config.HostsEntry.value:type_name -> v2ray.core.common.net.IPOrDomain
+	0,  // 9: v2ray.core.app.dns.NameServer.PriorityDomain.type:type_name -> v2ray.core.app.dns.DomainMatchingType
-	0,  // 10: v2ray.core.app.dns.Config.HostMapping.type:type_name -> v2ray.core.app.dns.DomainMatchingType
+	10, // 10: v2ray.core.app.dns.Config.HostsEntry.value:type_name -> v2ray.core.common.net.IPOrDomain
-	11, // [11:11] is the sub-list for method output_type
+	0,  // 11: v2ray.core.app.dns.Config.HostMapping.type:type_name -> v2ray.core.app.dns.DomainMatchingType
-	11, // [11:11] is the sub-list for method input_type
+	12, // [12:12] is the sub-list for method output_type
-	11, // [11:11] is the sub-list for extension type_name
+	12, // [12:12] is the sub-list for method input_type
-	11, // [11:11] is the sub-list for extension extendee
+	12, // [12:12] is the sub-list for extension type_name
-	0,  // [0:11] is the sub-list for field 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() }
@@ -663,7 +725,7 @@ func file_app_dns_config_proto_init() {
 		File: protoimpl.DescBuilder{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_app_dns_config_proto_rawDesc,
-			NumEnums:      1,
+			NumEnums:      2,
 			NumMessages:   6,
 			NumExtensions: 0,
 			NumServices:   0,

app/dns/config.proto

@@ -36,6 +36,12 @@ enum DomainMatchingType {
   Regex = 3;
 }
 
+enum QueryStrategy {
+  USE_IP = 0;
+  USE_IP4 = 1;
+  USE_IP6 = 2;
+}
+
 message Config {
   // Nameservers used by this DNS. Only traditional UDP servers are support at
   // the moment. A special value 'localhost' as a domain address can be set to
@@ -74,4 +80,6 @@ message Config {
 
   // DisableCache Disable DNS cache
   bool disableCache = 8;
+
+  QueryStrategy query_strategy = 9;
 }

app/dns/dns.go

@@ -26,6 +26,7 @@ type DNS struct {
 	sync.Mutex
 	tag           string
 	disableCache  bool
+	ipOption      *dns.IPOption
 	hosts         *StaticHosts
 	clients       []*Client
 	ctx           context.Context
@@ -56,6 +57,28 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 		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)
@@ -112,6 +135,7 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
 	return &DNS{
 		tag:           tag,
 		hosts:         hosts,
+		ipOption:      ipOption,
 		clients:       clients,
 		ctx:           ctx,
 		domainMatcher: domainMatcher,
@@ -142,7 +166,33 @@ func (s *DNS) IsOwnLink(ctx context.Context) bool {
 }
 
 // LookupIP implements dns.Client.
-func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, error) {
+func (s *DNS) LookupIP(domain string) ([]net.IP, error) {
+	return s.lookupIPInternal(domain, dns.IPOption{
+		IPv4Enable: true,
+		IPv6Enable: true,
+		FakeEnable: false,
+	})
+}
+
+// LookupIPv4 implements dns.IPv4Lookup.
+func (s *DNS) LookupIPv4(domain string) ([]net.IP, error) {
+	return s.lookupIPInternal(domain, dns.IPOption{
+		IPv4Enable: true,
+		IPv6Enable: false,
+		FakeEnable: false,
+	})
+}
+
+// LookupIPv6 implements dns.IPv6Lookup.
+func (s *DNS) LookupIPv6(domain string) ([]net.IP, error) {
+	return s.lookupIPInternal(domain, dns.IPOption{
+		IPv4Enable: false,
+		IPv6Enable: true,
+		FakeEnable: false,
+	})
+}
+
+func (s *DNS) lookupIPInternal(domain string, option dns.IPOption) ([]net.IP, error) {
 	if domain == "" {
 		return nil, newError("empty domain name")
 	}
@@ -190,6 +240,22 @@ func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, error) {
 	return nil, newError("returning nil for domain ", domain).Base(errors.Combine(errs...))
 }
 
+// GetIPOption implements ClientWithIPOption.
+func (s *DNS) GetIPOption() *dns.IPOption {
+	return s.ipOption
+}
+
+// SetQueryOption implements ClientWithIPOption.
+func (s *DNS) SetQueryOption(isIPv4Enable, isIPv6Enable bool) {
+	s.ipOption.IPv4Enable = isIPv4Enable
+	s.ipOption.IPv6Enable = isIPv6Enable
+}
+
+// SetFakeDNSOption implements ClientWithIPOption.
+func (s *DNS) SetFakeDNSOption(isFakeEnable bool) {
+	s.ipOption.FakeEnable = isFakeEnable
+}
+
 func (s *DNS) sortClients(domain string) []*Client {
 	clients := make([]*Client, 0, len(s.clients))
 	clientUsed := make([]bool, len(s.clients))

app/dns/dns_test.go

@@ -154,11 +154,7 @@ func TestUDPServerSubnet(t *testing.T) {
 
 	client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)
 
-	ips, err := client.LookupIP("google.com", feature_dns.IPOption{
+	ips, err := client.LookupIP("google.com")
-		IPv4Enable: true,
-		IPv6Enable: true,
-		FakeEnable: false,
-	})
 	if err != nil {
 		t.Fatal("unexpected error: ", err)
 	}
@@ -213,11 +209,7 @@ func TestUDPServer(t *testing.T) {
 	client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)
 
 	{
-		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
+		ips, err := client.LookupIP("google.com")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -228,11 +220,7 @@ func TestUDPServer(t *testing.T) {
 	}
 
 	{
-		ips, err := client.LookupIP("facebook.com", feature_dns.IPOption{
+		ips, err := client.LookupIP("facebook.com")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -243,11 +231,7 @@ func TestUDPServer(t *testing.T) {
 	}
 
 	{
-		_, err := client.LookupIP("notexist.google.com", feature_dns.IPOption{
+		_, err := client.LookupIP("notexist.google.com")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err == nil {
 			t.Fatal("nil error")
 		}
@@ -257,11 +241,8 @@ func TestUDPServer(t *testing.T) {
 	}
 
 	{
-		ips, err := client.LookupIP("ipv4only.google.com", feature_dns.IPOption{
+		clientv6 := client.(feature_dns.IPv6Lookup)
-			IPv4Enable: false,
+		ips, err := clientv6.LookupIPv6("ipv4only.google.com")
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != feature_dns.ErrEmptyResponse {
 			t.Fatal("error: ", err)
 		}
@@ -273,11 +254,7 @@ func TestUDPServer(t *testing.T) {
 	dnsServer.Shutdown()
 
 	{
-		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
+		ips, err := client.LookupIP("google.com")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -354,11 +331,7 @@ func TestPrioritizedDomain(t *testing.T) {
 	startTime := time.Now()
 
 	{
-		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
+		ips, err := client.LookupIP("google.com")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -417,12 +390,9 @@ 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{
+		ips, err := client6.LookupIPv6("ipv6.google.com")
-			IPv4Enable: false,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -485,11 +455,7 @@ func TestStaticHostDomain(t *testing.T) {
 	client := v.GetFeature(feature_dns.ClientType()).(feature_dns.Client)
 
 	{
-		ips, err := client.LookupIP("example.com", feature_dns.IPOption{
+		ips, err := client.LookupIP("example.com")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -596,11 +562,7 @@ func TestIPMatch(t *testing.T) {
 	startTime := time.Now()
 
 	{
-		ips, err := client.LookupIP("google.com", feature_dns.IPOption{
+		ips, err := client.LookupIP("google.com")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -719,11 +681,7 @@ func TestLocalDomain(t *testing.T) {
 	startTime := time.Now()
 
 	{ // Will match dotless:
-		ips, err := client.LookupIP("hostname", feature_dns.IPOption{
+		ips, err := client.LookupIP("hostname")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -734,11 +692,7 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match domain:local
-		ips, err := client.LookupIP("hostname.local", feature_dns.IPOption{
+		ips, err := client.LookupIP("hostname.local")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -749,11 +703,7 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match static ip
-		ips, err := client.LookupIP("hostnamestatic", feature_dns.IPOption{
+		ips, err := client.LookupIP("hostnamestatic")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -764,11 +714,7 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match domain replacing
-		ips, err := client.LookupIP("hostnamealias", feature_dns.IPOption{
+		ips, err := client.LookupIP("hostnamealias")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -779,11 +725,7 @@ 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{
+		ips, err := client.LookupIP("localhost")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -794,11 +736,7 @@ 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{
+		ips, err := client.LookupIP("localhost-a")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -809,11 +747,7 @@ 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{
+		ips, err := client.LookupIP("localhost-b")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -824,11 +758,7 @@ func TestLocalDomain(t *testing.T) {
 	}
 
 	{ // Will match dotless:
-		ips, err := client.LookupIP("Mijia Cloud", feature_dns.IPOption{
+		ips, err := client.LookupIP("Mijia Cloud")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -990,11 +920,7 @@ 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{
+		ips, err := client.LookupIP("google.com")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -1005,11 +931,8 @@ 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{
+		clientv4 := client.(feature_dns.IPv4Lookup)
-			IPv4Enable: true,
+		ips, err := clientv4.LookupIPv4("ipv6.google.com")
-			IPv6Enable: false,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -1020,11 +943,7 @@ 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{
+		ips, err := client.LookupIP("api.google.com")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}
@@ -1035,11 +954,7 @@ 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{
+		ips, err := client.LookupIP("v2.api.google.com")
-			IPv4Enable: true,
-			IPv6Enable: true,
-			FakeEnable: false,
-		})
 		if err != nil {
 			t.Fatal("unexpected error: ", err)
 		}

app/dns/fakedns/fakedns.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: app/dns/fakedns/fakedns.proto
 
 package fakedns
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type FakeDnsPool struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

app/dns/nameserver_doh_test.go

@@ -47,7 +47,7 @@ func TestDoHLocalNameServerWithCache(t *testing.T) {
 		t.Error("expect some ips, but got 0")
 	}
 
-	ctx2, cancel := context.WithTimeout(context.Background(), time.Second*2)
+	ctx2, cancel := context.WithTimeout(context.Background(), time.Second*5)
 	ips2, err := s.QueryIP(ctx2, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,

app/dns/nameserver_local.go

@@ -17,11 +17,23 @@ type LocalNameServer struct {
 
 // QueryIP implements Server.
 func (s *LocalNameServer) QueryIP(_ context.Context, domain string, _ net.IP, option dns.IPOption, _ bool) ([]net.IP, error) {
-	if option.IPv4Enable || option.IPv6Enable {
+	var ips []net.IP
-		return s.client.LookupIP(domain, option)
+	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)
 	}
 
-	return nil, newError("neither IPv4 nor IPv6 is enabled")
+	if len(ips) > 0 {
+		newError("Localhost got answer: ", domain, " -> ", ips).AtInfo().WriteToLog()
+	}
+
+	return ips, err
 }
 
 // Name implements Server.

app/dns/nameserver_local_test.go

@@ -13,7 +13,7 @@ import (
 
 func TestLocalNameServer(t *testing.T) {
 	s := NewLocalNameServer()
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
 	ips, err := s.QueryIP(ctx, "google.com", net.IP{}, dns.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,

app/dns/nameserver_quic.go

@@ -28,7 +28,7 @@ import (
 // by selecting the ALPN token "dq" in the crypto handshake.
 const NextProtoDQ = "doq-i00"
 
-const handshakeTimeout = time.Second * 8
+const handshakeIdleTimeout = time.Second * 8
 
 // QUICNameServer implemented DNS over QUIC
 type QUICNameServer struct {
@@ -367,7 +367,7 @@ func (s *QUICNameServer) getSession() (quic.Session, error) {
 func (s *QUICNameServer) openSession() (quic.Session, error) {
 	tlsConfig := tls.Config{}
 	quicConfig := &quic.Config{
-		HandshakeTimeout: handshakeTimeout,
+		HandshakeIdleTimeout: handshakeIdleTimeout,
 	}
 
 	session, err := quic.DialAddrContext(context.Background(), s.destination.NetAddr(), tlsConfig.GetTLSConfig(tls.WithNextProto("http/1.1", http2.NextProtoTLS, NextProtoDQ)), quicConfig)

app/dns/nameserver_quic_test.go

@@ -19,7 +19,7 @@ func TestQUICNameServer(t *testing.T) {
 	common.Must(err)
 	s, err := NewQUICNameServer(url)
 	common.Must(err)
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
+	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,
@@ -36,7 +36,7 @@ func TestQUICNameServerWithCache(t *testing.T) {
 	common.Must(err)
 	s, err := NewQUICNameServer(url)
 	common.Must(err)
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
+	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,
@@ -47,7 +47,7 @@ func TestQUICNameServerWithCache(t *testing.T) {
 		t.Error("expect some ips, but got 0")
 	}
 
-	ctx2, cancel := context.WithTimeout(context.Background(), time.Second*2)
+	ctx2, cancel := context.WithTimeout(context.Background(), time.Second*5)
 	ips2, err := s.QueryIP(ctx2, "google.com", net.IP(nil), dns_feature.IPOption{
 		IPv4Enable: true,
 		IPv6Enable: true,

app/log/command/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: app/log/command/config.proto
 
 package command
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

app/log/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: app/log/config.proto
 
 package log
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	log "github.com/v2fly/v2ray-core/v4/common/log"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type LogType int32
 
 const (

app/policy/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: app/policy/config.proto
 
 package policy
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Second struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

app/proxyman/command/command.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: app/proxyman/command/command.proto
 
 package command
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	v4 "github.com/v2fly/v2ray-core/v4"
 	protocol "github.com/v2fly/v2ray-core/v4/common/protocol"
 	serial "github.com/v2fly/v2ray-core/v4/common/serial"
@@ -24,10 +23,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type AddUserOperation struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

app/proxyman/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: app/proxyman/config.proto
 
 package proxyman
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	net "github.com/v2fly/v2ray-core/v4/common/net"
 	serial "github.com/v2fly/v2ray-core/v4/common/serial"
 	internet "github.com/v2fly/v2ray-core/v4/transport/internet"
@@ -24,10 +23,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type KnownProtocols int32
 
 const (

app/reverse/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: app/reverse/config.proto
 
 package reverse
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Control_State int32
 
 const (

app/router/command/command.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: app/router/command/command.proto
 
 package command
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	net "github.com/v2fly/v2ray-core/v4/common/net"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 // RoutingContext is the context with information relative to routing process.
 // It conforms to the structure of v2ray.core.features.routing.Context and
 // v2ray.core.features.routing.Route.

app/router/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: app/router/config.proto
 
 package router
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	net "github.com/v2fly/v2ray-core/v4/common/net"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 // Type of domain value.
 type Domain_Type int32
 

app/router/router_test.go

@@ -10,7 +10,6 @@ import (
 	"github.com/v2fly/v2ray-core/v4/common"
 	"github.com/v2fly/v2ray-core/v4/common/net"
 	"github.com/v2fly/v2ray-core/v4/common/session"
-	"github.com/v2fly/v2ray-core/v4/features/dns"
 	"github.com/v2fly/v2ray-core/v4/features/outbound"
 	routing_session "github.com/v2fly/v2ray-core/v4/features/routing/session"
 	"github.com/v2fly/v2ray-core/v4/testing/mocks"
@@ -117,11 +116,7 @@ func TestIPOnDemand(t *testing.T) {
 	defer mockCtl.Finish()
 
 	mockDNS := mocks.NewDNSClient(mockCtl)
-	mockDNS.EXPECT().LookupIP(gomock.Eq("v2fly.org"), dns.IPOption{
+	mockDNS.EXPECT().LookupIP(gomock.Eq("v2fly.org")).Return([]net.IP{{192, 168, 0, 1}}, nil).AnyTimes()
-		IPv4Enable: true,
-		IPv6Enable: true,
-		FakeEnable: false,
-	}).Return([]net.IP{{192, 168, 0, 1}}, nil).AnyTimes()
 
 	r := new(Router)
 	common.Must(r.Init(config, mockDNS, nil))
@@ -156,11 +151,7 @@ func TestIPIfNonMatchDomain(t *testing.T) {
 	defer mockCtl.Finish()
 
 	mockDNS := mocks.NewDNSClient(mockCtl)
-	mockDNS.EXPECT().LookupIP(gomock.Eq("v2fly.org"), dns.IPOption{
+	mockDNS.EXPECT().LookupIP(gomock.Eq("v2fly.org")).Return([]net.IP{{192, 168, 0, 1}}, nil).AnyTimes()
-		IPv4Enable: true,
-		IPv6Enable: true,
-		FakeEnable: false,
-	}).Return([]net.IP{{192, 168, 0, 1}}, nil).AnyTimes()
 
 	r := new(Router)
 	common.Must(r.Init(config, mockDNS, nil))

app/stats/command/command.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: app/stats/command/command.proto
 
 package command
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type GetStatsRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

app/stats/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: app/stats/config.proto
 
 package stats
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

common/errors/errorgen/main.go

@@ -2,11 +2,8 @@ package main
 
 import (
 	"fmt"
-	"log"
 	"os"
 	"path/filepath"
-
-	"github.com/v2fly/v2ray-core/v4/common"
 )
 
 func main() {
@@ -20,26 +17,21 @@ func main() {
 		pkg = "core"
 	}
 
-	moduleName, gmnErr := common.GetModuleName(pwd)
-	if gmnErr != nil {
-		fmt.Println("can not get module path", gmnErr)
-		os.Exit(1)
-	}
-
 	file, err := os.OpenFile("errors.generated.go", os.O_WRONLY|os.O_TRUNC|os.O_CREATE, 0644)
 	if err != nil {
-		log.Fatalf("Failed to generate errors.generated.go: %v", err)
+		fmt.Printf("Failed to generate errors.generated.go: %v", err)
 		os.Exit(1)
 	}
 	defer file.Close()
 
-	fmt.Fprintln(file, "package", pkg)
+	fmt.Fprintf(file, `package %s
-	fmt.Fprintln(file, "")
+
-	fmt.Fprintln(file, "import \""+moduleName+"/common/errors\"")
+import "github.com/v2fly/v2ray-core/v4/common/errors"
-	fmt.Fprintln(file, "")
+
-	fmt.Fprintln(file, "type errPathObjHolder struct{}")
+type errPathObjHolder struct{}
-	fmt.Fprintln(file, "")
+
-	fmt.Fprintln(file, "func newError(values ...interface{}) *errors.Error {")
+func newError(values ...interface{}) *errors.Error {
-	fmt.Fprintln(file, "	return errors.New(values...).WithPathObj(errPathObjHolder{})")
+	return errors.New(values...).WithPathObj(errPathObjHolder{})
-	fmt.Fprintln(file, "}")
+}
+`, pkg)
 }

common/log/log.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: common/log/log.proto
 
 package log
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Severity int32
 
 const (

common/net/address.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: common/net/address.proto
 
 package net
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 // Address of a network host. It may be either an IP address or a domain
 // address.
 type IPOrDomain struct {

common/net/destination.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: common/net/destination.proto
 
 package net
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 // Endpoint of a network connection.
 type Endpoint struct {
 	state         protoimpl.MessageState

common/net/network.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: common/net/network.proto
 
 package net
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Network int32
 
 const (

common/net/port.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: common/net/port.proto
 
 package net
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 // PortRange represents a range of ports.
 type PortRange struct {
 	state         protoimpl.MessageState

common/protocol/headers.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: common/protocol/headers.proto
 
 package protocol
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type SecurityType int32
 
 const (

common/protocol/server_spec.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: common/protocol/server_spec.proto
 
 package protocol
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	net "github.com/v2fly/v2ray-core/v4/common/net"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type ServerEndpoint struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

common/protocol/user.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: common/protocol/user.proto
 
 package protocol
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	serial "github.com/v2fly/v2ray-core/v4/common/serial"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 // User is a generic user for all procotols.
 type User struct {
 	state         protoimpl.MessageState

common/serial/typed_message.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: common/serial/typed_message.proto
 
 package serial
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 // TypedMessage is a serialized proto message along with its type name.
 type TypedMessage struct {
 	state         protoimpl.MessageState

config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: config.proto
 
 package core
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	serial "github.com/v2fly/v2ray-core/v4/common/serial"
 	transport "github.com/v2fly/v2ray-core/v4/transport"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
@@ -23,10 +22,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 // Config is the master config of V2Ray. V2Ray takes this config as input and
 // functions accordingly.
 type Config struct {

core.go

@@ -18,7 +18,7 @@ import (
 )
 
 var (
-	version  = "4.36.1"
+	version  = "4.36.2"
 	build    = "Custom"
 	codename = "V2Fly, a community-driven edition of V2Ray."
 	intro    = "A unified platform for anti-censorship."

features/dns/client.go

@@ -21,7 +21,35 @@ 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)
+}
+
+// IPv4Lookup is an optional feature for querying IPv4 addresses only.
+//
+// v2ray:api:beta
+type IPv4Lookup interface {
+	LookupIPv4(domain string) ([]net.IP, error)
+}
+
+// IPv6Lookup is an optional feature for querying IPv6 addresses only.
+//
+// v2ray:api:beta
+type IPv6Lookup interface {
+	LookupIPv6(domain string) ([]net.IP, error)
+}
+
+// ClientWithIPOption is an optional feature for querying DNS information.
+//
+// v2ray:api:beta
+type ClientWithIPOption interface {
+	// GetIPOption returns IPOption for the DNS client.
+	GetIPOption() *IPOption
+
+	// SetQueryOption sets IPv4Enable and IPv6Enable for the DNS client.
+	SetQueryOption(isIPv4Enable, isIPv6Enable bool)
+
+	// SetFakeDNSOption sets FakeEnable option for DNS client.
+	SetFakeDNSOption(isFakeEnable bool)
 }
 
 // ClientType returns the type of Client interface. Can be used for implementing common.HasType.

features/dns/localdns/client.go

@@ -20,41 +20,58 @@ 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
+}
+
+// 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 {
+	if len(ipv6) == 0 {
-	case option.IPv4Enable && option.IPv6Enable:
+		return nil, dns.ErrEmptyResponse
-		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
-		}
 	}
-	return nil, dns.ErrEmptyResponse
+	return ipv6, nil
 }
 
 // New create a new dns.Client that queries localhost for DNS.

features/routing/dns/context.go

@@ -26,11 +26,35 @@ func (ctx *ResolvableContext) GetTargetIPs() []net.IP {
 	}
 
 	if domain := ctx.GetTargetDomain(); len(domain) != 0 {
-		ips, err := ctx.dnsClient.LookupIP(domain, dns.IPOption{
+		var lookupFunc func(string) ([]net.IP, error) = ctx.dnsClient.LookupIP
+		ipOption := &dns.IPOption{
 			IPv4Enable: true,
 			IPv6Enable: true,
-			FakeEnable: false,
+		}
-		})
+
+		if c, ok := ctx.dnsClient.(dns.ClientWithIPOption); ok {
+			ipOption = c.GetIPOption()
+			c.SetFakeDNSOption(false) // Skip FakeDNS.
+		} else {
+			newError("ctx.dnsClient doesn't implement ClientWithIPOption").AtDebug().WriteToLog()
+		}
+
+		switch {
+		case ipOption.IPv4Enable && !ipOption.IPv6Enable:
+			if lookupIPv4, ok := ctx.dnsClient.(dns.IPv4Lookup); ok {
+				lookupFunc = lookupIPv4.LookupIPv4
+			} else {
+				newError("ctx.dnsClient doesn't implement IPv4Lookup. Use LookupIP instead.").AtDebug().WriteToLog()
+			}
+		case !ipOption.IPv4Enable && ipOption.IPv6Enable:
+			if lookupIPv6, ok := ctx.dnsClient.(dns.IPv6Lookup); ok {
+				lookupFunc = lookupIPv6.LookupIPv6
+			} else {
+				newError("ctx.dnsClient doesn't implement IPv6Lookup. Use LookupIP instead.").AtDebug().WriteToLog()
+			}
+		}
+
+		ips, err := lookupFunc(domain)
 		if err == nil {
 			ctx.resolvedIPs = ips
 			return ips

format.go

@@ -0,0 +1,4 @@
+package core
+
+//go:generate go install -v golang.org/x/tools/cmd/goimports@latest
+//go:generate go run ./infra/vformat/

infra/conf/dns.go

@@ -120,11 +120,12 @@ var typeMap = map[router.Domain_Type]dns.DomainMatchingType{
 
 // DNSConfig is a JSON serializable object for dns.Config.
 type DNSConfig struct {
-	Servers      []*NameServerConfig `json:"servers"`
+	Servers       []*NameServerConfig `json:"servers"`
-	Hosts        map[string]*Address `json:"hosts"`
+	Hosts         map[string]*Address `json:"hosts"`
-	ClientIP     *Address            `json:"clientIp"`
+	ClientIP      *Address            `json:"clientIp"`
-	Tag          string              `json:"tag"`
+	Tag           string              `json:"tag"`
-	DisableCache bool                `json:"disableCache"`
+	QueryStrategy string              `json:"queryStrategy"`
+	DisableCache  bool                `json:"disableCache"`
 }
 
 func getHostMapping(addr *Address) *dns.Config_HostMapping {
@@ -152,6 +153,16 @@ 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
+	}
+
 	for _, server := range c.Servers {
 		ns, err := server.Build()
 		if err != nil {

infra/conf/dns_test.go

@@ -80,7 +80,9 @@ func TestDNSConfigParsing(t *testing.T) {
 					"keyword:google": "8.8.8.8",
 					"regexp:.*\\.com": "8.8.4.4"
 				},
-				"clientIp": "10.0.0.1"
+				"clientIp": "10.0.0.1",
+				"queryStrategy": "UseIPv4",
+				"disableCache": true
 			}`,
 			Parser: parserCreator(),
 			Output: &dns.Config{
@@ -137,7 +139,9 @@ func TestDNSConfigParsing(t *testing.T) {
 						Ip:     [][]byte{{127, 0, 0, 1}},
 					},
 				},
-				ClientIp: []byte{10, 0, 0, 1},
+				ClientIp:      []byte{10, 0, 0, 1},
+				QueryStrategy: dns.QueryStrategy_USE_IP4,
+				DisableCache:  true,
 			},
 		},
 	})

infra/conf/freedom.go

@@ -23,11 +23,11 @@ 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/transport_internet.go

@@ -392,6 +392,8 @@ type StreamConfig struct {
 	HTTPSettings   *HTTPConfig         `json:"httpSettings"`
 	DSSettings     *DomainSocketConfig `json:"dsSettings"`
 	QUICSettings   *QUICConfig         `json:"quicSettings"`
+	GunSettings    *GunConfig          `json:"gunSettings"`
+	GRPCSettings   *GunConfig          `json:"grpcSettings"`
 	SocketSettings *SocketConfig       `json:"sockopt"`
 }
 
@@ -473,17 +475,30 @@ func (c *StreamConfig) Build() (*internet.StreamConfig, error) {
 	if c.QUICSettings != nil {
 		qs, err := c.QUICSettings.Build()
 		if err != nil {
-			return nil, newError("Failed to build QUIC config").Base(err)
+			return nil, newError("Failed to build QUIC config.").Base(err)
 		}
 		config.TransportSettings = append(config.TransportSettings, &internet.TransportConfig{
 			ProtocolName: "quic",
 			Settings:     serial.ToTypedMessage(qs),
 		})
 	}
+	if c.GunSettings == nil {
+		c.GunSettings = c.GRPCSettings
+	}
+	if c.GunSettings != nil {
+		gs, err := c.GunSettings.Build()
+		if err != nil {
+			return nil, newError("Failed to build Gun config.").Base(err)
+		}
+		config.TransportSettings = append(config.TransportSettings, &internet.TransportConfig{
+			ProtocolName: "gun",
+			Settings:     serial.ToTypedMessage(gs),
+		})
+	}
 	if c.SocketSettings != nil {
 		ss, err := c.SocketSettings.Build()
 		if err != nil {
-			return nil, newError("Failed to build sockopt").Base(err)
+			return nil, newError("Failed to build sockopt.").Base(err)
 		}
 		config.SocketSettings = ss
 	}

infra/vformat/main.go

@@ -0,0 +1,180 @@
+package main
+
+import (
+	"fmt"
+	"go/build"
+	"io/ioutil"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+	"strings"
+)
+
+// envFile returns the name of the Go environment configuration file.
+// Copy from https://github.com/golang/go/blob/c4f2a9788a7be04daf931ac54382fbe2cb754938/src/cmd/go/internal/cfg/cfg.go#L150-L166
+func envFile() (string, error) {
+	if file := os.Getenv("GOENV"); file != "" {
+		if file == "off" {
+			return "", fmt.Errorf("GOENV=off")
+		}
+		return file, nil
+	}
+	dir, err := os.UserConfigDir()
+	if err != nil {
+		return "", err
+	}
+	if dir == "" {
+		return "", fmt.Errorf("missing user-config dir")
+	}
+	return filepath.Join(dir, "go", "env"), nil
+}
+
+// GetRuntimeEnv returns the value of runtime environment variable,
+// that is set by running following command: `go env -w key=value`.
+func GetRuntimeEnv(key string) (string, error) {
+	file, err := envFile()
+	if err != nil {
+		return "", err
+	}
+	if file == "" {
+		return "", fmt.Errorf("missing runtime env file")
+	}
+	var data []byte
+	var runtimeEnv string
+	data, readErr := ioutil.ReadFile(file)
+	if readErr != nil {
+		return "", readErr
+	}
+	envStrings := strings.Split(string(data), "\n")
+	for _, envItem := range envStrings {
+		envItem = strings.TrimSuffix(envItem, "\r")
+		envKeyValue := strings.Split(envItem, "=")
+		if strings.EqualFold(strings.TrimSpace(envKeyValue[0]), key) {
+			runtimeEnv = strings.TrimSpace(envKeyValue[1])
+		}
+	}
+	return runtimeEnv, nil
+}
+
+// GetGOBIN returns GOBIN environment variable as a string. It will NOT be empty.
+func GetGOBIN() string {
+	// The one set by user explicitly by `export GOBIN=/path` or `env GOBIN=/path command`
+	GOBIN := os.Getenv("GOBIN")
+	if GOBIN == "" {
+		var err error
+		// The one set by user by running `go env -w GOBIN=/path`
+		GOBIN, err = GetRuntimeEnv("GOBIN")
+		if err != nil {
+			// The default one that Golang uses
+			return filepath.Join(build.Default.GOPATH, "bin")
+		}
+		if GOBIN == "" {
+			return filepath.Join(build.Default.GOPATH, "bin")
+		}
+		return GOBIN
+	}
+	return GOBIN
+}
+
+func Run(binary string, args []string) (string, error) {
+	cmd := exec.Command(binary, args...)
+	cmd.Env = append(cmd.Env, os.Environ()...)
+	output, cmdErr := cmd.CombinedOutput()
+	if cmdErr != nil {
+		return "", cmdErr
+	}
+	if len(output) > 0 {
+		return string(output), nil
+	}
+	return "", nil
+}
+
+func RunMany(binary string, args, files []string) {
+	fmt.Println("Processing...")
+	for _, file := range files {
+		args2 := append(args, file)
+		output, err := Run(binary, args2)
+		if err != nil {
+			fmt.Println(err)
+			continue
+		}
+		if len(output) > 0 {
+			fmt.Println(output)
+		}
+	}
+}
+
+func main() {
+	pwd, err := os.Getwd()
+	if err != nil {
+		fmt.Println("Can not get current working directory.")
+		os.Exit(1)
+	}
+
+	GOBIN := GetGOBIN()
+	binPath := os.Getenv("PATH")
+	pathSlice := []string{pwd, GOBIN, binPath}
+	binPath = strings.Join(pathSlice, string(os.PathListSeparator))
+	os.Setenv("PATH", binPath)
+
+	suffix := ""
+	if runtime.GOOS == "windows" {
+		suffix = ".exe"
+	}
+	gofmt := "gofmt" + suffix
+	goimports := "goimports" + suffix
+
+	if gofmtPath, err := exec.LookPath(gofmt); err != nil {
+		fmt.Println("Can not find", gofmt, "in system path or current working directory.")
+		os.Exit(1)
+	} else {
+		gofmt = gofmtPath
+	}
+
+	if goimportsPath, err := exec.LookPath(goimports); err != nil {
+		fmt.Println("Can not find", goimports, "in system path or current working directory.")
+		os.Exit(1)
+	} else {
+		goimports = goimportsPath
+	}
+
+	rawFilesSlice := make([]string, 0)
+	walkErr := filepath.Walk("./", func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			fmt.Println(err)
+			return err
+		}
+
+		if info.IsDir() {
+			return nil
+		}
+
+		dir := filepath.Dir(path)
+		filename := filepath.Base(path)
+		if strings.HasSuffix(filename, ".go") &&
+			!strings.HasSuffix(filename, ".pb.go") &&
+			!strings.Contains(dir, filepath.Join("testing", "mocks")) {
+			rawFilesSlice = append(rawFilesSlice, path)
+		}
+
+		return nil
+	})
+	if walkErr != nil {
+		fmt.Println(walkErr)
+		os.Exit(1)
+	}
+
+	gofmtArgs := []string{
+		"-s", "-l", "-e", "-w",
+	}
+
+	goimportsArgs := []string{
+		"-w",
+		"-local", "github.com/v2fly/v2ray-core",
+	}
+
+	RunMany(gofmt, gofmtArgs, rawFilesSlice)
+	RunMany(goimports, goimportsArgs, rawFilesSlice)
+	fmt.Println("Do NOT forget to commit file changes.")
+}

infra/vprotogen/main.go

@@ -2,40 +2,194 @@ package main
 
 import (
 	"fmt"
+	"go/build"
+	"io"
+	"io/ioutil"
+	"net/http"
 	"os"
 	"os/exec"
 	"path/filepath"
+	"regexp"
 	"runtime"
+	"strconv"
 	"strings"
-
-	core "github.com/v2fly/v2ray-core/v4"
-	"github.com/v2fly/v2ray-core/v4/common"
 )
 
+// envFile returns the name of the Go environment configuration file.
+// Copy from https://github.com/golang/go/blob/c4f2a9788a7be04daf931ac54382fbe2cb754938/src/cmd/go/internal/cfg/cfg.go#L150-L166
+func envFile() (string, error) {
+	if file := os.Getenv("GOENV"); file != "" {
+		if file == "off" {
+			return "", fmt.Errorf("GOENV=off")
+		}
+		return file, nil
+	}
+	dir, err := os.UserConfigDir()
+	if err != nil {
+		return "", err
+	}
+	if dir == "" {
+		return "", fmt.Errorf("missing user-config dir")
+	}
+	return filepath.Join(dir, "go", "env"), nil
+}
+
+// GetRuntimeEnv returns the value of runtime environment variable,
+// that is set by running following command: `go env -w key=value`.
+func GetRuntimeEnv(key string) (string, error) {
+	file, err := envFile()
+	if err != nil {
+		return "", err
+	}
+	if file == "" {
+		return "", fmt.Errorf("missing runtime env file")
+	}
+	var data []byte
+	var runtimeEnv string
+	data, readErr := ioutil.ReadFile(file)
+	if readErr != nil {
+		return "", readErr
+	}
+	envStrings := strings.Split(string(data), "\n")
+	for _, envItem := range envStrings {
+		envItem = strings.TrimSuffix(envItem, "\r")
+		envKeyValue := strings.Split(envItem, "=")
+		if strings.EqualFold(strings.TrimSpace(envKeyValue[0]), key) {
+			runtimeEnv = strings.TrimSpace(envKeyValue[1])
+		}
+	}
+	return runtimeEnv, nil
+}
+
+// GetGOBIN returns GOBIN environment variable as a string. It will NOT be empty.
+func GetGOBIN() string {
+	// The one set by user explicitly by `export GOBIN=/path` or `env GOBIN=/path command`
+	GOBIN := os.Getenv("GOBIN")
+	if GOBIN == "" {
+		var err error
+		// The one set by user by running `go env -w GOBIN=/path`
+		GOBIN, err = GetRuntimeEnv("GOBIN")
+		if err != nil {
+			// The default one that Golang uses
+			return filepath.Join(build.Default.GOPATH, "bin")
+		}
+		if GOBIN == "" {
+			return filepath.Join(build.Default.GOPATH, "bin")
+		}
+		return GOBIN
+	}
+	return GOBIN
+}
+
+func whichProtoc(suffix, targetedVersion string) (string, error) {
+	protoc := "protoc" + suffix
+
+	path, err := exec.LookPath(protoc)
+	if err != nil {
+		errStr := fmt.Sprintf(`
+Command "%s" not found.
+Make sure that %s is in your system path or current path.
+Download %s v%s or later from https://github.com/protocolbuffers/protobuf/releases
+`, protoc, protoc, protoc, targetedVersion)
+		return "", fmt.Errorf(errStr)
+	}
+	return path, nil
+}
+
+func getProjectProtocVersion(url string) (string, error) {
+	resp, err := http.Get(url)
+	if err != nil {
+		return "", fmt.Errorf("can not get the version of protobuf used in V2Ray project")
+	}
+	defer resp.Body.Close()
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return "", fmt.Errorf("can not read from body")
+	}
+	versionRegexp := regexp.MustCompile(`\/\/\s*protoc\s*v(\d+\.\d+\.\d+)`)
+	matched := versionRegexp.FindStringSubmatch(string(body))
+	return matched[1], nil
+}
+
+func getInstalledProtocVersion(protocPath string) (string, error) {
+	cmd := exec.Command(protocPath, "--version")
+	cmd.Env = append(cmd.Env, os.Environ()...)
+	output, cmdErr := cmd.CombinedOutput()
+	if cmdErr != nil {
+		return "", cmdErr
+	}
+	versionRegexp := regexp.MustCompile(`protoc\s*(\d+\.\d+\.\d+)`)
+	matched := versionRegexp.FindStringSubmatch(string(output))
+	return matched[1], nil
+}
+
+func parseVersion(s string, width int) int64 {
+	strList := strings.Split(s, ".")
+	format := fmt.Sprintf("%%s%%0%ds", width)
+	v := ""
+	for _, value := range strList {
+		v = fmt.Sprintf(format, v, value)
+	}
+	var result int64
+	var err error
+	if result, err = strconv.ParseInt(v, 10, 64); err != nil {
+		return 0
+	}
+	return result
+}
+
+func needToUpdate(targetedVersion, installedVersion string) bool {
+	vt := parseVersion(targetedVersion, 4)
+	vi := parseVersion(installedVersion, 4)
+	return vt > vi
+}
+
 func main() {
-	pwd, wdErr := os.Getwd()
+	pwd, err := os.Getwd()
-	if wdErr != nil {
+	if err != nil {
 		fmt.Println("Can not get current working directory.")
 		os.Exit(1)
 	}
 
-	GOBIN := common.GetGOBIN()
+	GOBIN := GetGOBIN()
 	binPath := os.Getenv("PATH")
-	pathSlice := []string{binPath, GOBIN, pwd}
+	pathSlice := []string{pwd, GOBIN, binPath}
 	binPath = strings.Join(pathSlice, string(os.PathListSeparator))
 	os.Setenv("PATH", binPath)
 
-	EXE := ""
+	suffix := ""
 	if runtime.GOOS == "windows" {
-		EXE = ".exe"
+		suffix = ".exe"
 	}
-	protoc := "protoc" + EXE
 
-	if path, err := exec.LookPath(protoc); err != nil {
+	targetedVersion, err := getProjectProtocVersion("https://raw.githubusercontent.com/v2fly/v2ray-core/HEAD/config.pb.go")
-		fmt.Println("Make sure that you have `" + protoc + "` in your system path or current path. To download it, please visit https://github.com/protocolbuffers/protobuf/releases")
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(1)
+	}
+
+	protoc, err := whichProtoc(suffix, targetedVersion)
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(1)
+	}
+
+	installedVersion, err := getInstalledProtocVersion(protoc)
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(1)
+	}
+
+	if needToUpdate(targetedVersion, installedVersion) {
+		fmt.Printf(`
+You are using an old protobuf version, please update to v%s or later.
+Download it from https://github.com/protocolbuffers/protobuf/releases
+
+    * Protobuf version used in V2Ray project: v%s
+    * Protobuf version you have installed: v%s
+
+`, targetedVersion, targetedVersion, installedVersion)
 		os.Exit(1)
-	} else {
-		protoc = path
 	}
 
 	protoFilesMap := make(map[string][]string)
@@ -64,11 +218,13 @@ func main() {
 
 	for _, files := range protoFilesMap {
 		for _, relProtoFile := range files {
-			var args []string
+			args := []string{
-			if core.ProtoFilesUsingProtocGenGoFast[relProtoFile] {
+				"--go_out", pwd,
-				args = []string{"--gofast_out", pwd, "--gofast_opt", "paths=source_relative", "--plugin", "protoc-gen-gofast=" + GOBIN + "/protoc-gen-gofast" + EXE}
+				"--go_opt", "paths=source_relative",
-			} else {
+				"--go-grpc_out", pwd,
-				args = []string{"--go_out", pwd, "--go_opt", "paths=source_relative", "--go-grpc_out", pwd, "--go-grpc_opt", "paths=source_relative", "--plugin", "protoc-gen-go=" + GOBIN + "/protoc-gen-go" + EXE, "--plugin", "protoc-gen-go-grpc=" + GOBIN + "/protoc-gen-go-grpc" + EXE}
+				"--go-grpc_opt", "paths=source_relative",
+				"--plugin", "protoc-gen-go=" + filepath.Join(GOBIN, "protoc-gen-go"+suffix),
+				"--plugin", "protoc-gen-go-grpc=" + filepath.Join(GOBIN, "protoc-gen-go-grpc"+suffix),
 			}
 			args = append(args, relProtoFile)
 			cmd := exec.Command(protoc, args...)

proto.go

@@ -1,12 +1,5 @@
 package core
 
-import "path/filepath"
-
 //go:generate go install -v google.golang.org/protobuf/cmd/protoc-gen-go@latest
 //go:generate go install -v google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest
-//go:generate go install -v github.com/gogo/protobuf/protoc-gen-gofast@latest
 //go:generate go run ./infra/vprotogen/
-
-// ProtoFilesUsingProtocGenGoFast is the map of Proto files
-// that use `protoc-gen-gofast` to generate pb.go files
-var ProtoFilesUsingProtocGenGoFast = map[string]bool{filepath.Join("proxy", "vless", "encoding", "addons.proto"): true}

proxy/blackhole/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: proxy/blackhole/config.proto
 
 package blackhole
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	serial "github.com/v2fly/v2ray-core/v4/common/serial"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type NoneResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

proxy/dns/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: proxy/dns/config.proto
 
 package dns
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	net "github.com/v2fly/v2ray-core/v4/common/net"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

proxy/dns/dns.go

@@ -39,12 +39,27 @@ type ownLinkVerifier interface {
 
 type Handler struct {
 	client          dns.Client
+	ipv4Lookup      dns.IPv4Lookup
+	ipv6Lookup      dns.IPv6Lookup
 	ownLinkVerifier ownLinkVerifier
 	server          net.Destination
 }
 
 func (h *Handler) Init(config *Config, dnsClient dns.Client) error {
 	h.client = dnsClient
+
+	if ipv4lookup, ok := dnsClient.(dns.IPv4Lookup); ok {
+		h.ipv4Lookup = ipv4lookup
+	} else {
+		return newError("dns.Client doesn't implement IPv4Lookup")
+	}
+
+	if ipv6lookup, ok := dnsClient.(dns.IPv6Lookup); ok {
+		h.ipv6Lookup = ipv6lookup
+	} else {
+		return newError("dns.Client doesn't implement IPv6Lookup")
+	}
+
 	if v, ok := dnsClient.(ownLinkVerifier); ok {
 		h.ownLinkVerifier = v
 	}
@@ -201,19 +216,18 @@ func (h *Handler) handleIPQuery(id uint16, qType dnsmessage.Type, domain string,
 
 	var ttl uint32 = 600
 
+	// Do NOT skip FakeDNS
+	if c, ok := h.client.(dns.ClientWithIPOption); ok {
+		c.SetFakeDNSOption(true)
+	} else {
+		newError("dns.Client doesn't implement ClientWithIPOption")
+	}
+
 	switch qType {
 	case dnsmessage.TypeA:
-		ips, err = h.client.LookupIP(domain, dns.IPOption{
+		ips, err = h.ipv4Lookup.LookupIPv4(domain)
-			IPv4Enable: true,
-			IPv6Enable: false,
-			FakeEnable: true,
-		})
 	case dnsmessage.TypeAAAA:
-		ips, err = h.client.LookupIP(domain, dns.IPOption{
+		ips, err = h.ipv6Lookup.LookupIPv6(domain)
-			IPv4Enable: false,
-			IPv6Enable: true,
-			FakeEnable: true,
-		})
 	}
 
 	rcode := dns.RCodeFromError(err)
@@ -230,7 +244,6 @@ 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/dokodemo/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: proxy/dokodemo/config.proto
 
 package dokodemo
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	net "github.com/v2fly/v2ray-core/v4/common/net"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

proxy/freedom/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: proxy/freedom/config.proto
 
 package freedom
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protocol "github.com/v2fly/v2ray-core/v4/common/protocol"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Config_DomainStrategy int32
 
 const (

proxy/freedom/freedom.go

@@ -60,26 +60,24 @@ 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{
+	if c, ok := h.dns.(dns.ClientWithIPOption); ok {
-		IPv4Enable: true,
+		c.SetFakeDNSOption(false) // Skip FakeDNS
-		IPv6Enable: true,
+	} else {
-		FakeEnable: false,
+		newError("DNS client doesn't implement ClientWithIPOption")
 	}
+
+	var lookupFunc func(string) ([]net.IP, error) = h.dns.LookupIP
 	if h.config.DomainStrategy == Config_USE_IP4 || (localAddr != nil && localAddr.Family().IsIPv4()) {
-		option = dns.IPOption{
+		if lookupIPv4, ok := h.dns.(dns.IPv4Lookup); ok {
-			IPv4Enable: true,
+			lookupFunc = lookupIPv4.LookupIPv4
-			IPv6Enable: false,
-			FakeEnable: false,
 		}
 	} else if h.config.DomainStrategy == Config_USE_IP6 || (localAddr != nil && localAddr.Family().IsIPv6()) {
-		option = dns.IPOption{
+		if lookupIPv6, ok := h.dns.(dns.IPv6Lookup); ok {
-			IPv4Enable: false,
+			lookupFunc = lookupIPv6.LookupIPv6
-			IPv6Enable: true,
-			FakeEnable: false,
 		}
 	}
 
-	ips, err := h.dns.LookupIP(domain, option)
+	ips, err := lookupFunc(domain)
 	if err != nil {
 		newError("failed to get IP address for domain ", domain).Base(err).WriteToLog(session.ExportIDToError(ctx))
 	}

proxy/http/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: proxy/http/config.proto
 
 package http
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protocol "github.com/v2fly/v2ray-core/v4/common/protocol"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Account struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

proxy/loopback/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: proxy/loopback/config.proto
 
 package loopback
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

proxy/mtproto/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: proxy/mtproto/config.proto
 
 package mtproto
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protocol "github.com/v2fly/v2ray-core/v4/common/protocol"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Account struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

proxy/shadowsocks/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: proxy/shadowsocks/config.proto
 
 package shadowsocks
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	net "github.com/v2fly/v2ray-core/v4/common/net"
 	protocol "github.com/v2fly/v2ray-core/v4/common/protocol"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
@@ -23,10 +22,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type CipherType int32
 
 const (

proxy/socks/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: proxy/socks/config.proto
 
 package socks
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	net "github.com/v2fly/v2ray-core/v4/common/net"
 	protocol "github.com/v2fly/v2ray-core/v4/common/protocol"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
@@ -23,10 +22,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 // AuthType is the authentication type of Socks proxy.
 type AuthType int32
 

proxy/trojan/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: proxy/trojan/config.proto
 
 package trojan
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protocol "github.com/v2fly/v2ray-core/v4/common/protocol"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Account struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

proxy/vless/account.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: proxy/vless/account.proto
 
 package vless
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Account struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

proxy/vless/encoding/addons.pb.go

@@ -1,381 +1,160 @@
-// Code generated by protoc-gen-gogo. DO NOT EDIT.
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.26.0
+// 	protoc        v3.15.6
 // source: proxy/vless/encoding/addons.proto
 
 package encoding
 
 import (
-	fmt "fmt"
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
-	proto "github.com/golang/protobuf/proto"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
-	io "io"
+	reflect "reflect"
-	math "math"
+	sync "sync"
-	math_bits "math/bits"
 )
 
-// Reference imports to suppress errors if they are not otherwise used.
+const (
-var _ = proto.Marshal
+	// Verify that this generated code is sufficiently up-to-date.
-var _ = fmt.Errorf
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
-var _ = math.Inf
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
-
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
-// This is a compile-time assertion to ensure that this generated file
+)
-// is compatible with the proto package it is being compiled against.
-// A compilation error at this line likely means your copy of the
-// proto package needs to be updated.
-const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
 
 type Addons struct {
-	Flow                 string   `protobuf:"bytes,1,opt,name=Flow,proto3" json:"Flow,omitempty"`
+	state         protoimpl.MessageState
-	Seed                 []byte   `protobuf:"bytes,2,opt,name=Seed,proto3" json:"Seed,omitempty"`
+	sizeCache     protoimpl.SizeCache
-	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	unknownFields protoimpl.UnknownFields
-	XXX_unrecognized     []byte   `json:"-"`
+
-	XXX_sizecache        int32    `json:"-"`
+	Flow string `protobuf:"bytes,1,opt,name=Flow,proto3" json:"Flow,omitempty"`
+	Seed []byte `protobuf:"bytes,2,opt,name=Seed,proto3" json:"Seed,omitempty"`
 }
 
-func (m *Addons) Reset()         { *m = Addons{} }
+func (x *Addons) Reset() {
-func (m *Addons) String() string { return proto.CompactTextString(m) }
+	*x = Addons{}
-func (*Addons) ProtoMessage()    {}
+	if protoimpl.UnsafeEnabled {
-func (*Addons) Descriptor() ([]byte, []int) {
+		mi := &file_proxy_vless_encoding_addons_proto_msgTypes[0]
-	return fileDescriptor_75ab671b0ca8b1cc, []int{0}
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-}
+		ms.StoreMessageInfo(mi)
-func (m *Addons) XXX_Unmarshal(b []byte) error {
-	return m.Unmarshal(b)
-}
-func (m *Addons) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
-	if deterministic {
-		return xxx_messageInfo_Addons.Marshal(b, m, deterministic)
-	} else {
-		b = b[:cap(b)]
-		n, err := m.MarshalToSizedBuffer(b)
-		if err != nil {
-			return nil, err
-		}
-		return b[:n], nil
 	}
 }
-func (m *Addons) XXX_Merge(src proto.Message) {
+
-	xxx_messageInfo_Addons.Merge(m, src)
+func (x *Addons) String() string {
-}
+	return protoimpl.X.MessageStringOf(x)
-func (m *Addons) XXX_Size() int {
-	return m.Size()
-}
-func (m *Addons) XXX_DiscardUnknown() {
-	xxx_messageInfo_Addons.DiscardUnknown(m)
 }
 
-var xxx_messageInfo_Addons proto.InternalMessageInfo
+func (*Addons) ProtoMessage() {}
 
-func (m *Addons) GetFlow() string {
+func (x *Addons) ProtoReflect() protoreflect.Message {
-	if m != nil {
+	mi := &file_proxy_vless_encoding_addons_proto_msgTypes[0]
-		return m.Flow
+	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 Addons.ProtoReflect.Descriptor instead.
+func (*Addons) Descriptor() ([]byte, []int) {
+	return file_proxy_vless_encoding_addons_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *Addons) GetFlow() string {
+	if x != nil {
+		return x.Flow
 	}
 	return ""
 }
 
-func (m *Addons) GetSeed() []byte {
+func (x *Addons) GetSeed() []byte {
-	if m != nil {
+	if x != nil {
-		return m.Seed
+		return x.Seed
 	}
 	return nil
 }
 
-func init() {
+var File_proxy_vless_encoding_addons_proto protoreflect.FileDescriptor
-	proto.RegisterType((*Addons)(nil), "v2ray.core.proxy.vless.encoding.Addons")
-}
 
-func init() { proto.RegisterFile("proxy/vless/encoding/addons.proto", fileDescriptor_75ab671b0ca8b1cc) }
+var file_proxy_vless_encoding_addons_proto_rawDesc = []byte{
-
+	0x0a, 0x21, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2f, 0x76, 0x6c, 0x65, 0x73, 0x73, 0x2f, 0x65, 0x6e,
-var fileDescriptor_75ab671b0ca8b1cc = []byte{
+	0x63, 0x6f, 0x64, 0x69, 0x6e, 0x67, 0x2f, 0x61, 0x64, 0x64, 0x6f, 0x6e, 0x73, 0x2e, 0x70, 0x72,
-	// 206 bytes of a gzipped FileDescriptorProto
+	0x6f, 0x74, 0x6f, 0x12, 0x1f, 0x76, 0x32, 0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x72, 0x65, 0x2e,
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0x52, 0x2c, 0x28, 0xca, 0xaf,
+	0x70, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x76, 0x6c, 0x65, 0x73, 0x73, 0x2e, 0x65, 0x6e, 0x63, 0x6f,
-	0xa8, 0xd4, 0x2f, 0xcb, 0x49, 0x2d, 0x2e, 0xd6, 0x4f, 0xcd, 0x4b, 0xce, 0x4f, 0xc9, 0xcc, 0x4b,
+	0x64, 0x69, 0x6e, 0x67, 0x22, 0x30, 0x0a, 0x06, 0x41, 0x64, 0x64, 0x6f, 0x6e, 0x73, 0x12, 0x12,
-	0xd7, 0x4f, 0x4c, 0x49, 0xc9, 0xcf, 0x2b, 0xd6, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0x92, 0x2f,
+	0x0a, 0x04, 0x46, 0x6c, 0x6f, 0x77, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x46, 0x6c,
-	0x33, 0x2a, 0x4a, 0xac, 0xd4, 0x4b, 0xce, 0x2f, 0x4a, 0xd5, 0x03, 0xab, 0xd6, 0x03, 0xab, 0xd6,
+	0x6f, 0x77, 0x12, 0x12, 0x0a, 0x04, 0x53, 0x65, 0x65, 0x64, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0c,
-	0x83, 0xa9, 0x56, 0x32, 0xe0, 0x62, 0x73, 0x04, 0x6b, 0x10, 0x12, 0xe2, 0x62, 0x71, 0xcb, 0xc9,
+	0x52, 0x04, 0x53, 0x65, 0x65, 0x64, 0x42, 0x7e, 0x0a, 0x23, 0x63, 0x6f, 0x6d, 0x2e, 0x76, 0x32,
-	0x2f, 0x97, 0x60, 0x54, 0x60, 0xd4, 0xe0, 0x0c, 0x02, 0xb3, 0x41, 0x62, 0xc1, 0xa9, 0xa9, 0x29,
+	0x72, 0x61, 0x79, 0x2e, 0x63, 0x6f, 0x72, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x76,
-	0x12, 0x4c, 0x0a, 0x8c, 0x1a, 0x3c, 0x41, 0x60, 0xb6, 0x53, 0x1f, 0xe3, 0x89, 0x47, 0x72, 0x8c,
+	0x6c, 0x65, 0x73, 0x73, 0x2e, 0x65, 0x6e, 0x63, 0x6f, 0x64, 0x69, 0x6e, 0x67, 0x50, 0x01, 0x5a,
-	0x17, 0x1e, 0xc9, 0x31, 0x3e, 0x78, 0x24, 0xc7, 0x38, 0xe3, 0xb1, 0x1c, 0x03, 0x97, 0x72, 0x72,
+	0x33, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x76, 0x32, 0x66, 0x6c,
-	0x7e, 0xae, 0x1e, 0x01, 0x9b, 0x02, 0x18, 0xa3, 0x8c, 0xd3, 0x33, 0x4b, 0x32, 0x4a, 0x93, 0xf4,
+	0x79, 0x2f, 0x76, 0x32, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x76, 0x34, 0x2f,
-	0x92, 0xf3, 0x73, 0xf5, 0xcb, 0x8c, 0xd2, 0x72, 0x2a, 0xf5, 0xc1, 0x7a, 0x74, 0x41, 0x7a, 0xf4,
+	0x70, 0x72, 0x6f, 0x78, 0x79, 0x2f, 0x76, 0x6c, 0x65, 0x73, 0x73, 0x2f, 0x65, 0x6e, 0x63, 0x6f,
-	0xcb, 0x4c, 0xf4, 0xb1, 0x79, 0x67, 0x15, 0x93, 0x7c, 0x98, 0x51, 0x50, 0x62, 0xa5, 0x9e, 0x33,
+	0x64, 0x69, 0x6e, 0x67, 0xaa, 0x02, 0x1f, 0x56, 0x32, 0x52, 0x61, 0x79, 0x2e, 0x43, 0x6f, 0x72,
-	0xc8, 0xe0, 0x00, 0xb0, 0xc1, 0x61, 0x60, 0x83, 0x5d, 0xa1, 0x2a, 0x92, 0xd8, 0xc0, 0x5e, 0x35,
+	0x65, 0x2e, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x56, 0x6c, 0x65, 0x73, 0x73, 0x2e, 0x45, 0x6e,
-	0x06, 0x04, 0x00, 0x00, 0xff, 0xff, 0xb8, 0x1d, 0xb4, 0x93, 0x0f, 0x01, 0x00, 0x00,
+	0x63, 0x6f, 0x64, 0x69, 0x6e, 0x67, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
-}
-
-func (m *Addons) Marshal() (dAtA []byte, err error) {
-	size := m.Size()
-	dAtA = make([]byte, size)
-	n, err := m.MarshalToSizedBuffer(dAtA[:size])
-	if err != nil {
-		return nil, err
-	}
-	return dAtA[:n], nil
-}
-
-func (m *Addons) MarshalTo(dAtA []byte) (int, error) {
-	size := m.Size()
-	return m.MarshalToSizedBuffer(dAtA[:size])
-}
-
-func (m *Addons) MarshalToSizedBuffer(dAtA []byte) (int, error) {
-	i := len(dAtA)
-	_ = i
-	var l int
-	_ = l
-	if m.XXX_unrecognized != nil {
-		i -= len(m.XXX_unrecognized)
-		copy(dAtA[i:], m.XXX_unrecognized)
-	}
-	if len(m.Seed) > 0 {
-		i -= len(m.Seed)
-		copy(dAtA[i:], m.Seed)
-		i = encodeVarintAddons(dAtA, i, uint64(len(m.Seed)))
-		i--
-		dAtA[i] = 0x12
-	}
-	if len(m.Flow) > 0 {
-		i -= len(m.Flow)
-		copy(dAtA[i:], m.Flow)
-		i = encodeVarintAddons(dAtA, i, uint64(len(m.Flow)))
-		i--
-		dAtA[i] = 0xa
-	}
-	return len(dAtA) - i, nil
-}
-
-func encodeVarintAddons(dAtA []byte, offset int, v uint64) int {
-	offset -= sovAddons(v)
-	base := offset
-	for v >= 1<<7 {
-		dAtA[offset] = uint8(v&0x7f | 0x80)
-		v >>= 7
-		offset++
-	}
-	dAtA[offset] = uint8(v)
-	return base
-}
-func (m *Addons) Size() (n int) {
-	if m == nil {
-		return 0
-	}
-	var l int
-	_ = l
-	l = len(m.Flow)
-	if l > 0 {
-		n += 1 + l + sovAddons(uint64(l))
-	}
-	l = len(m.Seed)
-	if l > 0 {
-		n += 1 + l + sovAddons(uint64(l))
-	}
-	if m.XXX_unrecognized != nil {
-		n += len(m.XXX_unrecognized)
-	}
-	return n
-}
-
-func sovAddons(x uint64) (n int) {
-	return (math_bits.Len64(x|1) + 6) / 7
-}
-func sozAddons(x uint64) (n int) {
-	return sovAddons(uint64((x << 1) ^ uint64((int64(x) >> 63))))
-}
-func (m *Addons) Unmarshal(dAtA []byte) error {
-	l := len(dAtA)
-	iNdEx := 0
-	for iNdEx < l {
-		preIndex := iNdEx
-		var wire uint64
-		for shift := uint(0); ; shift += 7 {
-			if shift >= 64 {
-				return ErrIntOverflowAddons
-			}
-			if iNdEx >= l {
-				return io.ErrUnexpectedEOF
-			}
-			b := dAtA[iNdEx]
-			iNdEx++
-			wire |= uint64(b&0x7F) << shift
-			if b < 0x80 {
-				break
-			}
-		}
-		fieldNum := int32(wire >> 3)
-		wireType := int(wire & 0x7)
-		if wireType == 4 {
-			return fmt.Errorf("proto: Addons: wiretype end group for non-group")
-		}
-		if fieldNum <= 0 {
-			return fmt.Errorf("proto: Addons: illegal tag %d (wire type %d)", fieldNum, wire)
-		}
-		switch fieldNum {
-		case 1:
-			if wireType != 2 {
-				return fmt.Errorf("proto: wrong wireType = %d for field Flow", wireType)
-			}
-			var stringLen uint64
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return ErrIntOverflowAddons
-				}
-				if iNdEx >= l {
-					return io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				stringLen |= uint64(b&0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-			intStringLen := int(stringLen)
-			if intStringLen < 0 {
-				return ErrInvalidLengthAddons
-			}
-			postIndex := iNdEx + intStringLen
-			if postIndex < 0 {
-				return ErrInvalidLengthAddons
-			}
-			if postIndex > l {
-				return io.ErrUnexpectedEOF
-			}
-			m.Flow = string(dAtA[iNdEx:postIndex])
-			iNdEx = postIndex
-		case 2:
-			if wireType != 2 {
-				return fmt.Errorf("proto: wrong wireType = %d for field Seed", wireType)
-			}
-			var byteLen int
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return ErrIntOverflowAddons
-				}
-				if iNdEx >= l {
-					return io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				byteLen |= int(b&0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-			if byteLen < 0 {
-				return ErrInvalidLengthAddons
-			}
-			postIndex := iNdEx + byteLen
-			if postIndex < 0 {
-				return ErrInvalidLengthAddons
-			}
-			if postIndex > l {
-				return io.ErrUnexpectedEOF
-			}
-			m.Seed = append(m.Seed[:0], dAtA[iNdEx:postIndex]...)
-			if m.Seed == nil {
-				m.Seed = []byte{}
-			}
-			iNdEx = postIndex
-		default:
-			iNdEx = preIndex
-			skippy, err := skipAddons(dAtA[iNdEx:])
-			if err != nil {
-				return err
-			}
-			if (skippy < 0) || (iNdEx+skippy) < 0 {
-				return ErrInvalidLengthAddons
-			}
-			if (iNdEx + skippy) > l {
-				return io.ErrUnexpectedEOF
-			}
-			m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
-			iNdEx += skippy
-		}
-	}
-
-	if iNdEx > l {
-		return io.ErrUnexpectedEOF
-	}
-	return nil
-}
-func skipAddons(dAtA []byte) (n int, err error) {
-	l := len(dAtA)
-	iNdEx := 0
-	depth := 0
-	for iNdEx < l {
-		var wire uint64
-		for shift := uint(0); ; shift += 7 {
-			if shift >= 64 {
-				return 0, ErrIntOverflowAddons
-			}
-			if iNdEx >= l {
-				return 0, io.ErrUnexpectedEOF
-			}
-			b := dAtA[iNdEx]
-			iNdEx++
-			wire |= (uint64(b) & 0x7F) << shift
-			if b < 0x80 {
-				break
-			}
-		}
-		wireType := int(wire & 0x7)
-		switch wireType {
-		case 0:
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return 0, ErrIntOverflowAddons
-				}
-				if iNdEx >= l {
-					return 0, io.ErrUnexpectedEOF
-				}
-				iNdEx++
-				if dAtA[iNdEx-1] < 0x80 {
-					break
-				}
-			}
-		case 1:
-			iNdEx += 8
-		case 2:
-			var length int
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return 0, ErrIntOverflowAddons
-				}
-				if iNdEx >= l {
-					return 0, io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				length |= (int(b) & 0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-			if length < 0 {
-				return 0, ErrInvalidLengthAddons
-			}
-			iNdEx += length
-		case 3:
-			depth++
-		case 4:
-			if depth == 0 {
-				return 0, ErrUnexpectedEndOfGroupAddons
-			}
-			depth--
-		case 5:
-			iNdEx += 4
-		default:
-			return 0, fmt.Errorf("proto: illegal wireType %d", wireType)
-		}
-		if iNdEx < 0 {
-			return 0, ErrInvalidLengthAddons
-		}
-		if depth == 0 {
-			return iNdEx, nil
-		}
-	}
-	return 0, io.ErrUnexpectedEOF
 }
 
 var (
-	ErrInvalidLengthAddons        = fmt.Errorf("proto: negative length found during unmarshaling")
+	file_proxy_vless_encoding_addons_proto_rawDescOnce sync.Once
-	ErrIntOverflowAddons          = fmt.Errorf("proto: integer overflow")
+	file_proxy_vless_encoding_addons_proto_rawDescData = file_proxy_vless_encoding_addons_proto_rawDesc
-	ErrUnexpectedEndOfGroupAddons = fmt.Errorf("proto: unexpected end of group")
 )
+
+func file_proxy_vless_encoding_addons_proto_rawDescGZIP() []byte {
+	file_proxy_vless_encoding_addons_proto_rawDescOnce.Do(func() {
+		file_proxy_vless_encoding_addons_proto_rawDescData = protoimpl.X.CompressGZIP(file_proxy_vless_encoding_addons_proto_rawDescData)
+	})
+	return file_proxy_vless_encoding_addons_proto_rawDescData
+}
+
+var file_proxy_vless_encoding_addons_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
+var file_proxy_vless_encoding_addons_proto_goTypes = []interface{}{
+	(*Addons)(nil), // 0: v2ray.core.proxy.vless.encoding.Addons
+}
+var file_proxy_vless_encoding_addons_proto_depIdxs = []int32{
+	0, // [0:0] is the sub-list for method output_type
+	0, // [0:0] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_proxy_vless_encoding_addons_proto_init() }
+func file_proxy_vless_encoding_addons_proto_init() {
+	if File_proxy_vless_encoding_addons_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_proxy_vless_encoding_addons_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Addons); 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_proxy_vless_encoding_addons_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   1,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_proxy_vless_encoding_addons_proto_goTypes,
+		DependencyIndexes: file_proxy_vless_encoding_addons_proto_depIdxs,
+		MessageInfos:      file_proxy_vless_encoding_addons_proto_msgTypes,
+	}.Build()
+	File_proxy_vless_encoding_addons_proto = out.File
+	file_proxy_vless_encoding_addons_proto_rawDesc = nil
+	file_proxy_vless_encoding_addons_proto_goTypes = nil
+	file_proxy_vless_encoding_addons_proto_depIdxs = nil
+}

proxy/vless/encoding/encoding_test.go

@@ -52,7 +52,11 @@ func TestRequestSerialization(t *testing.T) {
 	if r := cmp.Diff(actualRequest, expectedRequest, cmp.AllowUnexported(protocol.ID{})); r != "" {
 		t.Error(r)
 	}
-	if r := cmp.Diff(actualAddons, expectedAddons); r != "" {
+
+	addonsComparer := func(x, y *Addons) bool {
+		return (x.Flow == y.Flow) && (cmp.Equal(x.Seed, y.Seed))
+	}
+	if r := cmp.Diff(actualAddons, expectedAddons, cmp.Comparer(addonsComparer)); r != "" {
 		t.Error(r)
 	}
 }
@@ -120,7 +124,11 @@ func TestMuxRequest(t *testing.T) {
 	if r := cmp.Diff(actualRequest, expectedRequest, cmp.AllowUnexported(protocol.ID{})); r != "" {
 		t.Error(r)
 	}
-	if r := cmp.Diff(actualAddons, expectedAddons); r != "" {
+
+	addonsComparer := func(x, y *Addons) bool {
+		return (x.Flow == y.Flow) && (cmp.Equal(x.Seed, y.Seed))
+	}
+	if r := cmp.Diff(actualAddons, expectedAddons, cmp.Comparer(addonsComparer)); r != "" {
 		t.Error(r)
 	}
 }

proxy/vless/inbound/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: proxy/vless/inbound/config.proto
 
 package inbound
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protocol "github.com/v2fly/v2ray-core/v4/common/protocol"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Fallback struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

proxy/vless/outbound/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: proxy/vless/outbound/config.proto
 
 package outbound
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protocol "github.com/v2fly/v2ray-core/v4/common/protocol"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

proxy/vmess/account.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: proxy/vmess/account.proto
 
 package vmess
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protocol "github.com/v2fly/v2ray-core/v4/common/protocol"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Account struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

proxy/vmess/inbound/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: proxy/vmess/inbound/config.proto
 
 package inbound
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protocol "github.com/v2fly/v2ray-core/v4/common/protocol"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type DetourConfig struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

proxy/vmess/outbound/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: proxy/vmess/outbound/config.proto
 
 package outbound
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protocol "github.com/v2fly/v2ray-core/v4/common/protocol"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

testing/mocks/dns.go

@@ -9,8 +9,6 @@ import (
 	reflect "reflect"
 
 	gomock "github.com/golang/mock/gomock"
-
-	dns "github.com/v2fly/v2ray-core/v4/features/dns"
 )
 
 // DNSClient is a mock of Client interface.
@@ -51,18 +49,18 @@ func (mr *DNSClientMockRecorder) Close() *gomock.Call {
 }
 
 // LookupIP mocks base method.
-func (m *DNSClient) LookupIP(arg0 string, arg1 dns.IPOption) ([]net.IP, error) {
+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 {
+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.

testing/mocks/log.go

@@ -8,7 +8,6 @@ import (
 	reflect "reflect"
 
 	gomock "github.com/golang/mock/gomock"
-
 	log "github.com/v2fly/v2ray-core/v4/common/log"
 )
 

testing/mocks/mux.go

@@ -8,7 +8,6 @@ import (
 	reflect "reflect"
 
 	gomock "github.com/golang/mock/gomock"
-
 	mux "github.com/v2fly/v2ray-core/v4/common/mux"
 )
 

testing/mocks/outbound.go

@@ -9,7 +9,6 @@ import (
 	reflect "reflect"
 
 	gomock "github.com/golang/mock/gomock"
-
 	outbound "github.com/v2fly/v2ray-core/v4/features/outbound"
 )
 

testing/mocks/proxy.go

@@ -9,7 +9,6 @@ import (
 	reflect "reflect"
 
 	gomock "github.com/golang/mock/gomock"
-
 	net "github.com/v2fly/v2ray-core/v4/common/net"
 	routing "github.com/v2fly/v2ray-core/v4/features/routing"
 	transport "github.com/v2fly/v2ray-core/v4/transport"

transport/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: transport/config.proto
 
 package transport
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	internet "github.com/v2fly/v2ray-core/v4/transport/internet"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 // Global transport settings. This affects all type of connections that go
 // through V2Ray. Deprecated. Use each settings in StreamConfig.
 //

transport/internet/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: transport/internet/config.proto
 
 package internet
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	serial "github.com/v2fly/v2ray-core/v4/common/serial"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type TransportProtocol int32
 
 const (

transport/internet/domainsocket/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: transport/internet/domainsocket/config.proto
 
 package domainsocket
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

transport/internet/grpc/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: transport/internet/grpc/config.proto
 
 package grpc
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

transport/internet/grpc/encoding/stream.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: transport/internet/grpc/encoding/stream.proto
 
 package encoding
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Hunk struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

transport/internet/headers/http/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: transport/internet/headers/http/config.proto
 
 package http
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Header struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

transport/internet/headers/noop/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: transport/internet/headers/noop/config.proto
 
 package noop
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

transport/internet/headers/srtp/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: transport/internet/headers/srtp/config.proto
 
 package srtp
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

transport/internet/headers/tls/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: transport/internet/headers/tls/config.proto
 
 package tls
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type PacketConfig struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

transport/internet/headers/utp/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: transport/internet/headers/utp/config.proto
 
 package utp
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

transport/internet/headers/wechat/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: transport/internet/headers/wechat/config.proto
 
 package wechat
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type VideoConfig struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

transport/internet/headers/wireguard/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: transport/internet/headers/wireguard/config.proto
 
 package wireguard
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type WireguardConfig struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

transport/internet/http/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: transport/internet/http/config.proto
 
 package http
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

transport/internet/kcp/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: transport/internet/kcp/config.proto
 
 package kcp
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	serial "github.com/v2fly/v2ray-core/v4/common/serial"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 // Maximum Transmission Unit, in bytes.
 type MTU struct {
 	state         protoimpl.MessageState

transport/internet/quic/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: transport/internet/quic/config.proto
 
 package quic
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protocol "github.com/v2fly/v2ray-core/v4/common/protocol"
 	serial "github.com/v2fly/v2ray-core/v4/common/serial"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
@@ -23,10 +22,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

transport/internet/quic/dialer.go

@@ -150,9 +150,9 @@ func (s *clientSessions) openConnection(destAddr net.Addr, config *Config, tlsCo
 	}
 
 	quicConfig := &quic.Config{
-		ConnectionIDLength: 12,
+		ConnectionIDLength:   12,
-		HandshakeTimeout:   time.Second * 8,
+		HandshakeIdleTimeout: time.Second * 8,
-		MaxIdleTimeout:     time.Second * 30,
+		MaxIdleTimeout:       time.Second * 30,
 	}
 
 	conn, err := wrapSysConn(rawConn, config)

transport/internet/quic/hub.go

@@ -106,7 +106,7 @@ func Listen(ctx context.Context, address net.Address, port net.Port, streamSetti
 
 	quicConfig := &quic.Config{
 		ConnectionIDLength:    12,
-		HandshakeTimeout:      time.Second * 8,
+		HandshakeIdleTimeout:  time.Second * 8,
 		MaxIdleTimeout:        time.Second * 45,
 		MaxIncomingStreams:    32,
 		MaxIncomingUniStreams: -1,

transport/internet/tcp/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: transport/internet/tcp/config.proto
 
 package tcp
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	serial "github.com/v2fly/v2ray-core/v4/common/serial"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -22,10 +21,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Config struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache

transport/internet/tcp/sockopt_linux.go

@@ -23,14 +23,37 @@ func GetOriginalDestination(conn internet.Connection) (net.Destination, error) {
 	}
 	var dest net.Destination
 	err = rawConn.Control(func(fd uintptr) {
-		addr, err := syscall.GetsockoptIPv6Mreq(int(fd), syscall.IPPROTO_IP, SO_ORIGINAL_DST)
+		var remoteIP net.IP
-		if err != nil {
+		switch addr := conn.RemoteAddr().(type) {
-			newError("failed to call getsockopt").Base(err).WriteToLog()
+		case *net.TCPAddr:
+			remoteIP = addr.IP
+		case *net.UDPAddr:
+			remoteIP = addr.IP
+		default:
+			newError("failed to call getsockopt").WriteToLog()
 			return
 		}
-		ip := net.IPAddress(addr.Multiaddr[4:8])
+		if remoteIP.To4() != nil {
-		port := uint16(addr.Multiaddr[2])<<8 + uint16(addr.Multiaddr[3])
+			// ipv4
-		dest = net.TCPDestination(ip, net.Port(port))
+			addr, err := syscall.GetsockoptIPv6Mreq(int(fd), syscall.IPPROTO_IP, SO_ORIGINAL_DST)
+			if err != nil {
+				newError("failed to call getsockopt").Base(err).WriteToLog()
+				return
+			}
+			ip := net.IPAddress(addr.Multiaddr[4:8])
+			port := uint16(addr.Multiaddr[2])<<8 + uint16(addr.Multiaddr[3])
+			dest = net.TCPDestination(ip, net.Port(port))
+		} else {
+			// ipv6
+			addr, err := syscall.GetsockoptIPv6MTUInfo(int(fd), syscall.IPPROTO_IPV6, SO_ORIGINAL_DST)
+			if err != nil {
+				newError("failed to call getsockopt").Base(err).WriteToLog()
+				return
+			}
+			ip := net.IPAddress(addr.Addr.Addr[:])
+			port := net.PortFromBytes([]byte{byte(addr.Addr.Port), byte(addr.Addr.Port >> 8)})
+			dest = net.TCPDestination(ip, port)
+		}
 	})
 	if err != nil {
 		return net.Destination{}, newError("failed to control connection").Base(err)

transport/internet/tls/config.pb.go

@@ -1,13 +1,12 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.15.5
+// 	protoc        v3.15.6
 // source: transport/internet/tls/config.proto
 
 package tls
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -21,10 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 type Certificate_Usage int32
 
 const (