Add seed padding logic

- Seed is decoupled with XTLS Vision, which means Seed can turn on without flow
- XTLS Vision now use Seed config to configure its padding only mode
This commit is contained in:
yuhan6665 2024-04-21 15:23:47 -04:00
parent 855b773973
commit 38ef5eac28
8 changed files with 631 additions and 50 deletions

512
proxy/addons.pb.go Normal file
View file

@ -0,0 +1,512 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.33.0
// protoc v4.23.1
// source: proxy/addons.proto
package proxy
import (
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
reflect "reflect"
sync "sync"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
type SeedMode int32
const (
SeedMode_Unknown SeedMode = 0
SeedMode_PaddingOnly SeedMode = 1
SeedMode_PaddingPlusDelay SeedMode = 2
SeedMode_IndependentScheduler SeedMode = 3
)
// Enum value maps for SeedMode.
var (
SeedMode_name = map[int32]string{
0: "Unknown",
1: "PaddingOnly",
2: "PaddingPlusDelay",
3: "IndependentScheduler",
}
SeedMode_value = map[string]int32{
"Unknown": 0,
"PaddingOnly": 1,
"PaddingPlusDelay": 2,
"IndependentScheduler": 3,
}
)
func (x SeedMode) Enum() *SeedMode {
p := new(SeedMode)
*p = x
return p
}
func (x SeedMode) String() string {
return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
}
func (SeedMode) Descriptor() protoreflect.EnumDescriptor {
return file_proxy_addons_proto_enumTypes[0].Descriptor()
}
func (SeedMode) Type() protoreflect.EnumType {
return &file_proxy_addons_proto_enumTypes[0]
}
func (x SeedMode) Number() protoreflect.EnumNumber {
return protoreflect.EnumNumber(x)
}
// Deprecated: Use SeedMode.Descriptor instead.
func (SeedMode) EnumDescriptor() ([]byte, []int) {
return file_proxy_addons_proto_rawDescGZIP(), []int{0}
}
type Addons struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
Flow string `protobuf:"bytes,1,opt,name=Flow,proto3" json:"Flow,omitempty"`
Seed []byte `protobuf:"bytes,2,opt,name=Seed,proto3" json:"Seed,omitempty"`
Mode SeedMode `protobuf:"varint,3,opt,name=Mode,proto3,enum=xray.proxy.SeedMode" json:"Mode,omitempty"`
Duration string `protobuf:"bytes,4,opt,name=Duration,proto3" json:"Duration,omitempty"` // "0-8" means apply to number of packets, "1000b-" means start applying once both side exchange 1kb data, counting two-ways
Padding *PaddingConfig `protobuf:"bytes,5,opt,name=Padding,proto3" json:"Padding,omitempty"`
Delay *DelayConfig `protobuf:"bytes,6,opt,name=Delay,proto3" json:"Delay,omitempty"`
Scheduler *SchedulerConfig `protobuf:"bytes,7,opt,name=Scheduler,proto3" json:"Scheduler,omitempty"`
}
func (x *Addons) Reset() {
*x = Addons{}
if protoimpl.UnsafeEnabled {
mi := &file_proxy_addons_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *Addons) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*Addons) ProtoMessage() {}
func (x *Addons) ProtoReflect() protoreflect.Message {
mi := &file_proxy_addons_proto_msgTypes[0]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use Addons.ProtoReflect.Descriptor instead.
func (*Addons) Descriptor() ([]byte, []int) {
return file_proxy_addons_proto_rawDescGZIP(), []int{0}
}
func (x *Addons) GetFlow() string {
if x != nil {
return x.Flow
}
return ""
}
func (x *Addons) GetSeed() []byte {
if x != nil {
return x.Seed
}
return nil
}
func (x *Addons) GetMode() SeedMode {
if x != nil {
return x.Mode
}
return SeedMode_Unknown
}
func (x *Addons) GetDuration() string {
if x != nil {
return x.Duration
}
return ""
}
func (x *Addons) GetPadding() *PaddingConfig {
if x != nil {
return x.Padding
}
return nil
}
func (x *Addons) GetDelay() *DelayConfig {
if x != nil {
return x.Delay
}
return nil
}
func (x *Addons) GetScheduler() *SchedulerConfig {
if x != nil {
return x.Scheduler
}
return nil
}
type PaddingConfig struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
RegularMin uint32 `protobuf:"varint,1,opt,name=RegularMin,proto3" json:"RegularMin,omitempty"`
RegularMax uint32 `protobuf:"varint,2,opt,name=RegularMax,proto3" json:"RegularMax,omitempty"`
LongMin uint32 `protobuf:"varint,3,opt,name=LongMin,proto3" json:"LongMin,omitempty"`
LongMax uint32 `protobuf:"varint,4,opt,name=LongMax,proto3" json:"LongMax,omitempty"`
}
func (x *PaddingConfig) Reset() {
*x = PaddingConfig{}
if protoimpl.UnsafeEnabled {
mi := &file_proxy_addons_proto_msgTypes[1]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *PaddingConfig) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*PaddingConfig) ProtoMessage() {}
func (x *PaddingConfig) ProtoReflect() protoreflect.Message {
mi := &file_proxy_addons_proto_msgTypes[1]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use PaddingConfig.ProtoReflect.Descriptor instead.
func (*PaddingConfig) Descriptor() ([]byte, []int) {
return file_proxy_addons_proto_rawDescGZIP(), []int{1}
}
func (x *PaddingConfig) GetRegularMin() uint32 {
if x != nil {
return x.RegularMin
}
return 0
}
func (x *PaddingConfig) GetRegularMax() uint32 {
if x != nil {
return x.RegularMax
}
return 0
}
func (x *PaddingConfig) GetLongMin() uint32 {
if x != nil {
return x.LongMin
}
return 0
}
func (x *PaddingConfig) GetLongMax() uint32 {
if x != nil {
return x.LongMax
}
return 0
}
type DelayConfig struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
IsRandom bool `protobuf:"varint,1,opt,name=IsRandom,proto3" json:"IsRandom,omitempty"`
MinMillis uint32 `protobuf:"varint,2,opt,name=MinMillis,proto3" json:"MinMillis,omitempty"`
MaxMillis uint32 `protobuf:"varint,3,opt,name=MaxMillis,proto3" json:"MaxMillis,omitempty"`
}
func (x *DelayConfig) Reset() {
*x = DelayConfig{}
if protoimpl.UnsafeEnabled {
mi := &file_proxy_addons_proto_msgTypes[2]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *DelayConfig) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*DelayConfig) ProtoMessage() {}
func (x *DelayConfig) ProtoReflect() protoreflect.Message {
mi := &file_proxy_addons_proto_msgTypes[2]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use DelayConfig.ProtoReflect.Descriptor instead.
func (*DelayConfig) Descriptor() ([]byte, []int) {
return file_proxy_addons_proto_rawDescGZIP(), []int{2}
}
func (x *DelayConfig) GetIsRandom() bool {
if x != nil {
return x.IsRandom
}
return false
}
func (x *DelayConfig) GetMinMillis() uint32 {
if x != nil {
return x.MinMillis
}
return 0
}
func (x *DelayConfig) GetMaxMillis() uint32 {
if x != nil {
return x.MaxMillis
}
return 0
}
type SchedulerConfig struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
TimeoutMillis uint32 `protobuf:"varint,1,opt,name=TimeoutMillis,proto3" json:"TimeoutMillis,omitempty"` // original traffic will not be sent right away but when scheduler want to send or pending buffer times out
}
func (x *SchedulerConfig) Reset() {
*x = SchedulerConfig{}
if protoimpl.UnsafeEnabled {
mi := &file_proxy_addons_proto_msgTypes[3]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *SchedulerConfig) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*SchedulerConfig) ProtoMessage() {}
func (x *SchedulerConfig) ProtoReflect() protoreflect.Message {
mi := &file_proxy_addons_proto_msgTypes[3]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use SchedulerConfig.ProtoReflect.Descriptor instead.
func (*SchedulerConfig) Descriptor() ([]byte, []int) {
return file_proxy_addons_proto_rawDescGZIP(), []int{3}
}
func (x *SchedulerConfig) GetTimeoutMillis() uint32 {
if x != nil {
return x.TimeoutMillis
}
return 0
}
var File_proxy_addons_proto protoreflect.FileDescriptor
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}
var (
file_proxy_addons_proto_rawDescOnce sync.Once
file_proxy_addons_proto_rawDescData = file_proxy_addons_proto_rawDesc
)
func file_proxy_addons_proto_rawDescGZIP() []byte {
file_proxy_addons_proto_rawDescOnce.Do(func() {
file_proxy_addons_proto_rawDescData = protoimpl.X.CompressGZIP(file_proxy_addons_proto_rawDescData)
})
return file_proxy_addons_proto_rawDescData
}
var file_proxy_addons_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
var file_proxy_addons_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
var file_proxy_addons_proto_goTypes = []interface{}{
(SeedMode)(0), // 0: xray.proxy.SeedMode
(*Addons)(nil), // 1: xray.proxy.Addons
(*PaddingConfig)(nil), // 2: xray.proxy.PaddingConfig
(*DelayConfig)(nil), // 3: xray.proxy.DelayConfig
(*SchedulerConfig)(nil), // 4: xray.proxy.SchedulerConfig
}
var file_proxy_addons_proto_depIdxs = []int32{
0, // 0: xray.proxy.Addons.Mode:type_name -> xray.proxy.SeedMode
2, // 1: xray.proxy.Addons.Padding:type_name -> xray.proxy.PaddingConfig
3, // 2: xray.proxy.Addons.Delay:type_name -> xray.proxy.DelayConfig
4, // 3: xray.proxy.Addons.Scheduler:type_name -> xray.proxy.SchedulerConfig
4, // [4:4] is the sub-list for method output_type
4, // [4:4] is the sub-list for method input_type
4, // [4:4] is the sub-list for extension type_name
4, // [4:4] is the sub-list for extension extendee
0, // [0:4] is the sub-list for field type_name
}
func init() { file_proxy_addons_proto_init() }
func file_proxy_addons_proto_init() {
if File_proxy_addons_proto != nil {
return
}
if !protoimpl.UnsafeEnabled {
file_proxy_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
}
}
file_proxy_addons_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*PaddingConfig); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_proxy_addons_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*DelayConfig); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_proxy_addons_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*SchedulerConfig); 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_addons_proto_rawDesc,
NumEnums: 1,
NumMessages: 4,
NumExtensions: 0,
NumServices: 0,
},
GoTypes: file_proxy_addons_proto_goTypes,
DependencyIndexes: file_proxy_addons_proto_depIdxs,
EnumInfos: file_proxy_addons_proto_enumTypes,
MessageInfos: file_proxy_addons_proto_msgTypes,
}.Build()
File_proxy_addons_proto = out.File
file_proxy_addons_proto_rawDesc = nil
file_proxy_addons_proto_goTypes = nil
file_proxy_addons_proto_depIdxs = nil
}

View file

@ -1,16 +1,16 @@
syntax = "proto3";
package xray.proxy.vless.encoding;
option csharp_namespace = "Xray.Proxy.Vless.Encoding";
option go_package = "github.com/xtls/xray-core/proxy/vless/encoding";
option java_package = "com.xray.proxy.vless.encoding";
package xray.proxy;
option csharp_namespace = "Xray.Proxy";
option go_package = "github.com/xtls/xray-core/proxy";
option java_package = "com.xray.proxy";
option java_multiple_files = true;
message Addons {
string Flow = 1;
bytes Seed = 2;
SeedMode Mode = 3;
string Duration = 4; // "0-8" means apply to number of packets, "1kb-" means start applying once both side exchange 1kb data, counting two-ways
string Duration = 4; // "0-8" means apply to number of packets, "1000b-" means start applying once both side exchange 1kb data, counting two-ways
PaddingConfig Padding = 5;
DelayConfig Delay = 6;
SchedulerConfig Scheduler = 7;

View file

@ -13,6 +13,7 @@ import (
"math/big"
"runtime"
"strconv"
"strings"
"time"
"github.com/pires/go-proxyproto"
@ -146,9 +147,9 @@ func NewTrafficState(userUUID []byte, flow string) *TrafficState {
RemainingPadding: -1,
CurrentCommand: 0,
WriterSwitchToDirectCopy: false,
IsPadding: true,
};
if len(flow) > 0 {
state.IsPadding = true;
state.WithinPaddingBuffers = true;
}
return &state
@ -158,13 +159,15 @@ func NewTrafficState(userUUID []byte, flow string) *TrafficState {
// Note Vision probably only make sense as the inner most layer of reader, since it need assess traffic state from origin proxy traffic
type VisionReader struct {
buf.Reader
addons *Addons
trafficState *TrafficState
ctx context.Context
}
func NewVisionReader(reader buf.Reader, state *TrafficState, context context.Context) *VisionReader {
func NewVisionReader(reader buf.Reader, addon *Addons, state *TrafficState, context context.Context) *VisionReader {
return &VisionReader{
Reader: reader,
addons: addon,
trafficState: state,
ctx: context,
}
@ -177,7 +180,7 @@ func (w *VisionReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
w.trafficState.StartTime = time.Now()
}
w.trafficState.ByteReceived += int64(buffer.Len())
if w.trafficState.WithinPaddingBuffers || w.trafficState.NumberOfPacketToFilter > 0 {
if w.trafficState.WithinPaddingBuffers || !ShouldStopSeed(w.addons, w.trafficState) {
mb2 := make(buf.MultiBuffer, 0, len(buffer))
for _, b := range buffer {
newbuffer := XtlsUnpadding(b, w.trafficState, w.ctx)
@ -209,16 +212,18 @@ func (w *VisionReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
// Note Vision probably only make sense as the inner most layer of writer, since it need assess traffic state from origin proxy traffic
type VisionWriter struct {
buf.Writer
addons *Addons
trafficState *TrafficState
ctx context.Context
writeOnceUserUUID []byte
}
func NewVisionWriter(writer buf.Writer, state *TrafficState, context context.Context) *VisionWriter {
func NewVisionWriter(writer buf.Writer, addon *Addons, state *TrafficState, context context.Context) *VisionWriter {
w := make([]byte, len(state.UserUUID))
copy(w, state.UserUUID)
return &VisionWriter{
Writer: writer,
addons: addon,
trafficState: state,
ctx: context,
writeOnceUserUUID: w,
@ -230,9 +235,9 @@ func (w *VisionWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
if w.trafficState.NumberOfPacketToFilter > 0 {
XtlsFilterTls(mb, w.trafficState, w.ctx)
}
if w.trafficState.IsPadding {
if w.trafficState.IsPadding && ShouldStartSeed(w.addons, w.trafficState){
if len(mb) == 1 && mb[0] == nil {
mb[0] = XtlsPadding(nil, CommandPaddingContinue, &w.writeOnceUserUUID, true, w.ctx) // we do a long padding to hide vless header
mb[0] = XtlsPadding(nil, CommandPaddingContinue, &w.writeOnceUserUUID, true, w.addons, w.ctx) // we do a long padding to hide vless header
} else {
mb = ReshapeMultiBuffer(w.ctx, mb)
longPadding := w.trafficState.IsTLS
@ -243,18 +248,20 @@ func (w *VisionWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
}
var command byte = CommandPaddingContinue
if i == len(mb) - 1 {
command = CommandPaddingEnd
if w.trafficState.EnableXtls {
command = CommandPaddingDirect
w.trafficState.IsPadding = false
} else if ShouldStopSeed(w.addons, w.trafficState) {
command = CommandPaddingEnd
w.trafficState.IsPadding = false
}
}
mb[i] = XtlsPadding(b, command, &w.writeOnceUserUUID, true, w.ctx)
w.trafficState.IsPadding = false // padding going to end
mb[i] = XtlsPadding(b, command, &w.writeOnceUserUUID, true, w.addons, w.ctx)
longPadding = false
continue
} else if !w.trafficState.IsTLS12orAbove && w.trafficState.NumberOfPacketToFilter <= 1 { // For compatibility with earlier vision receiver, we finish padding 1 packet early
} else if !w.trafficState.IsTLS12orAbove && ShouldStopSeed(w.addons, w.trafficState) {
w.trafficState.IsPadding = false
mb[i] = XtlsPadding(b, CommandPaddingEnd, &w.writeOnceUserUUID, longPadding, w.ctx)
mb[i] = XtlsPadding(b, CommandPaddingEnd, &w.writeOnceUserUUID, longPadding, w.addons, w.ctx)
break
}
var command byte = CommandPaddingContinue
@ -264,7 +271,7 @@ func (w *VisionWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
command = CommandPaddingDirect
}
}
mb[i] = XtlsPadding(b, command, &w.writeOnceUserUUID, longPadding, w.ctx)
mb[i] = XtlsPadding(b, command, &w.writeOnceUserUUID, longPadding, w.addons, w.ctx)
}
}
}
@ -311,24 +318,24 @@ func ReshapeMultiBuffer(ctx context.Context, buffer buf.MultiBuffer) buf.MultiBu
}
// XtlsPadding add padding to eliminate length signature during tls handshake
func XtlsPadding(b *buf.Buffer, command byte, userUUID *[]byte, longPadding bool, ctx context.Context) *buf.Buffer {
func XtlsPadding(b *buf.Buffer, command byte, userUUID *[]byte, longPadding bool, addons *Addons, ctx context.Context) *buf.Buffer {
var contentLen int32 = 0
var paddingLen int32 = 0
if b != nil {
contentLen = b.Len()
}
if contentLen < 900 && longPadding {
l, err := rand.Int(rand.Reader, big.NewInt(500))
if contentLen < int32(addons.Padding.LongMin) && longPadding {
l, err := rand.Int(rand.Reader, big.NewInt(int64(addons.Padding.LongMax - addons.Padding.LongMin)))
if err != nil {
errors.LogDebugInner(ctx, err, "failed to generate padding")
}
paddingLen = int32(l.Int64()) + 900 - contentLen
paddingLen = int32(l.Int64()) + int32(addons.Padding.LongMin) - contentLen
} else {
l, err := rand.Int(rand.Reader, big.NewInt(256))
l, err := rand.Int(rand.Reader, big.NewInt(int64(addons.Padding.RegularMax - addons.Padding.RegularMin)))
if err != nil {
errors.LogDebugInner(ctx, err, "failed to generate padding")
}
paddingLen = int32(l.Int64())
paddingLen = int32(l.Int64()) + int32(addons.Padding.RegularMin)
}
if paddingLen > buf.Size-21-contentLen {
paddingLen = buf.Size - 21 - contentLen
@ -583,3 +590,50 @@ func readV(ctx context.Context, reader buf.Reader, writer buf.Writer, timer sign
}
return nil
}
func ShouldStartSeed(addons *Addons, trafficState *TrafficState) bool {
if len(addons.Duration) == 0 || len(strings.Split(addons.Duration, "-")) < 2 {
return false
}
start := strings.ToLower(strings.Split(addons.Duration, "-")[0])
if len(start) == 0 {
return true
}
if strings.Contains(start, "b") {
start = strings.TrimRight(start, "b")
i, err := strconv.Atoi(start)
if err == nil && i <= int(trafficState.ByteSent + trafficState.ByteSent) {
return true
}
} else {
i, err := strconv.Atoi(start)
if err == nil && i <= trafficState.NumberOfPacketSent + trafficState.NumberOfPacketReceived {
return true
}
}
return false
}
func ShouldStopSeed(addons *Addons, trafficState *TrafficState) bool {
if len(addons.Duration) == 0 || len(strings.Split(addons.Duration, "-")) < 2 {
return true
}
start := strings.ToLower(strings.Split(addons.Duration, "-")[1])
if len(start) == 0 { // infinite
return false
}
if strings.Contains(start, "b") {
start = strings.TrimRight(start, "b")
i, err := strconv.Atoi(start)
if err == nil && i > int(trafficState.ByteSent + trafficState.ByteSent) {
return false
}
} else {
i, err := strconv.Atoi(start)
if err == nil && i > trafficState.NumberOfPacketSent + trafficState.NumberOfPacketReceived {
return false
}
}
return true
}

View file

@ -13,7 +13,7 @@ import (
"google.golang.org/protobuf/proto"
)
func EncodeHeaderAddons(buffer *buf.Buffer, addons *Addons) error {
func EncodeHeaderAddons(buffer *buf.Buffer, addons *proxy.Addons) error {
if addons.Flow == vless.XRV || len(addons.Seed) > 0 {
bytes, err := proto.Marshal(addons)
if err != nil {
@ -33,8 +33,8 @@ func EncodeHeaderAddons(buffer *buf.Buffer, addons *Addons) error {
return nil
}
func DecodeHeaderAddons(buffer *buf.Buffer, reader io.Reader) (*Addons, error) {
addons := new(Addons)
func DecodeHeaderAddons(buffer *buf.Buffer, reader io.Reader) (*proxy.Addons, error) {
addons := new(proxy.Addons)
buffer.Clear()
if _, err := buffer.ReadFullFrom(reader, 1); err != nil {
return nil, errors.New("failed to read addons protobuf length").Base(err)
@ -55,8 +55,8 @@ func DecodeHeaderAddons(buffer *buf.Buffer, reader io.Reader) (*Addons, error) {
}
// EncodeBodyAddons returns a Writer that auto-encrypt content written by caller.
func EncodeBodyAddons(writer buf.Writer, request *protocol.RequestHeader, requestAddons *Addons, state *proxy.TrafficState, context context.Context) buf.Writer {
w := proxy.NewVisionWriter(writer, state, context)
func EncodeBodyAddons(writer buf.Writer, request *protocol.RequestHeader, addons *proxy.Addons, state *proxy.TrafficState, context context.Context) buf.Writer {
w := proxy.NewVisionWriter(writer, addons, state, context)
if request.Command == protocol.RequestCommandUDP {
return NewMultiLengthPacketWriter(w)
}
@ -64,8 +64,8 @@ func EncodeBodyAddons(writer buf.Writer, request *protocol.RequestHeader, reques
}
// DecodeBodyAddons returns a Reader from which caller can fetch decrypted body.
func DecodeBodyAddons(reader io.Reader, request *protocol.RequestHeader, addons *Addons, state *proxy.TrafficState, context context.Context) buf.Reader {
r := proxy.NewVisionReader(buf.NewReader(reader), state, context)
func DecodeBodyAddons(reader io.Reader, request *protocol.RequestHeader, addons *proxy.Addons, state *proxy.TrafficState, context context.Context) buf.Reader {
r := proxy.NewVisionReader(buf.NewReader(reader), addons, state, context)
if request.Command == protocol.RequestCommandUDP {
return NewLengthPacketReader(&buf.BufferedReader{Reader: r})
}
@ -178,32 +178,46 @@ func (r *LengthPacketReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
return mb, nil
}
func PopulateSeed(seed string, addons *Addons) {
func PopulateSeed(seed string, addons *proxy.Addons) {
if len(seed) > 0 {
addons.Seed = []byte {1} // only turn on, more TBD
addons.Mode = SeedMode_PaddingPlusDelay
addons.Mode = proxy.SeedMode_PaddingPlusDelay
addons.Duration = "0-8"
addons.Padding = &PaddingConfig{
addons.Padding = &proxy.PaddingConfig{
RegularMin: 0,
RegularMax: 256,
LongMin: 900,
LongMax: 1400,
}
addons.Delay = &DelayConfig{
addons.Delay = &proxy.DelayConfig{
IsRandom: true,
MinMillis: 100,
MaxMillis: 500,
}
addons.Scheduler = &SchedulerConfig{
addons.Scheduler = &proxy.SchedulerConfig{
TimeoutMillis: 600,
}
} else if addons.Flow == vless.XRV {
addons.Seed = []byte {1} // only turn on, more TBD
addons.Mode = proxy.SeedMode_PaddingOnly
addons.Duration = "0-8"
addons.Padding = &proxy.PaddingConfig{
RegularMin: 0,
RegularMax: 256,
LongMin: 900,
LongMax: 1400,
}
}
}
func CheckSeed(requestAddons *Addons, responseAddons *Addons) error {
func CheckSeed(requestAddons *proxy.Addons, responseAddons *proxy.Addons) error {
if !bytes.Equal(requestAddons.Seed, responseAddons.Seed) {
return errors.New("Seed bytes not match", requestAddons.Seed, responseAddons.Seed)
}
if responseAddons.Flow == vless.XRV && len(responseAddons.Seed) == 0 && requestAddons.Mode == proxy.SeedMode_Unknown {
// old vision server config allow empty seed from clients for backwards compatibility
return nil
}
if requestAddons.Mode != responseAddons.Mode {
return errors.New("Mode not match", requestAddons.Mode, responseAddons.Mode)
}

View file

@ -28,7 +28,7 @@ var addrParser = protocol.NewAddressParser(
)
// EncodeRequestHeader writes encoded request header into the given writer.
func EncodeRequestHeader(writer io.Writer, request *protocol.RequestHeader, requestAddons *Addons) error {
func EncodeRequestHeader(writer io.Writer, request *protocol.RequestHeader, requestAddons *proxy.Addons) error {
buffer := buf.StackNew()
defer buffer.Release()
@ -62,7 +62,7 @@ func EncodeRequestHeader(writer io.Writer, request *protocol.RequestHeader, requ
}
// DecodeRequestHeader decodes and returns (if successful) a RequestHeader from an input stream.
func DecodeRequestHeader(isfb bool, first *buf.Buffer, reader io.Reader, validator vless.Validator) (*protocol.RequestHeader, *Addons, bool, error) {
func DecodeRequestHeader(isfb bool, first *buf.Buffer, reader io.Reader, validator vless.Validator) (*protocol.RequestHeader, *proxy.Addons, bool, error) {
buffer := buf.StackNew()
defer buffer.Release()
@ -131,7 +131,7 @@ func DecodeRequestHeader(isfb bool, first *buf.Buffer, reader io.Reader, validat
}
// EncodeResponseHeader writes encoded response header into the given writer.
func EncodeResponseHeader(writer io.Writer, request *protocol.RequestHeader, responseAddons *Addons) error {
func EncodeResponseHeader(writer io.Writer, request *protocol.RequestHeader, responseAddons *proxy.Addons) error {
buffer := buf.StackNew()
defer buffer.Release()
@ -151,7 +151,7 @@ func EncodeResponseHeader(writer io.Writer, request *protocol.RequestHeader, res
}
// DecodeResponseHeader decodes and returns (if successful) a ResponseHeader from an input stream.
func DecodeResponseHeader(reader io.Reader, request *protocol.RequestHeader) (*Addons, error) {
func DecodeResponseHeader(reader io.Reader, request *protocol.RequestHeader) (*proxy.Addons, error) {
buffer := buf.StackNew()
defer buffer.Release()

View file

@ -9,6 +9,7 @@ import (
"github.com/xtls/xray-core/common/net"
"github.com/xtls/xray-core/common/protocol"
"github.com/xtls/xray-core/common/uuid"
"github.com/xtls/xray-core/proxy"
"github.com/xtls/xray-core/proxy/vless"
. "github.com/xtls/xray-core/proxy/vless/encoding"
)
@ -37,7 +38,7 @@ func TestRequestSerialization(t *testing.T) {
Address: net.DomainAddress("www.example.com"),
Port: net.Port(443),
}
expectedAddons := &Addons{}
expectedAddons := &proxy.Addons{}
buffer := buf.StackNew()
common.Must(EncodeRequestHeader(&buffer, expectedRequest, expectedAddons))
@ -52,7 +53,7 @@ func TestRequestSerialization(t *testing.T) {
t.Error(r)
}
addonsComparer := func(x, y *Addons) bool {
addonsComparer := func(x, y *proxy.Addons) bool {
return (x.Flow == y.Flow) && (cmp.Equal(x.Seed, y.Seed))
}
if r := cmp.Diff(actualAddons, expectedAddons, cmp.Comparer(addonsComparer)); r != "" {
@ -78,7 +79,7 @@ func TestInvalidRequest(t *testing.T) {
Address: net.DomainAddress("www.example.com"),
Port: net.Port(443),
}
expectedAddons := &Addons{}
expectedAddons := &proxy.Addons{}
buffer := buf.StackNew()
common.Must(EncodeRequestHeader(&buffer, expectedRequest, expectedAddons))
@ -109,7 +110,7 @@ func TestMuxRequest(t *testing.T) {
Command: protocol.RequestCommandMux,
Address: net.DomainAddress("v1.mux.cool"),
}
expectedAddons := &Addons{}
expectedAddons := &proxy.Addons{}
buffer := buf.StackNew()
common.Must(EncodeRequestHeader(&buffer, expectedRequest, expectedAddons))
@ -124,7 +125,7 @@ func TestMuxRequest(t *testing.T) {
t.Error(r)
}
addonsComparer := func(x, y *Addons) bool {
addonsComparer := func(x, y *proxy.Addons) bool {
return (x.Flow == y.Flow) && (cmp.Equal(x.Seed, y.Seed))
}
if r := cmp.Diff(actualAddons, expectedAddons, cmp.Comparer(addonsComparer)); r != "" {

View file

@ -215,7 +215,7 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
}
var request *protocol.RequestHeader
var requestAddons *encoding.Addons
var requestAddons *proxy.Addons
var err error
napfb := h.fallbacks
@ -455,7 +455,7 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
account := request.User.Account.(*vless.MemoryAccount)
responseAddons := &encoding.Addons{
responseAddons := &proxy.Addons{
// Flow: requestAddons.Flow,
}
encoding.PopulateSeed(account.Seed, responseAddons)
@ -536,7 +536,7 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
defer timer.SetTimeout(sessionPolicy.Timeouts.DownlinkOnly)
// default: clientReader := reader
clientReader := encoding.DecodeBodyAddons(reader, request, requestAddons, trafficState, ctx)
clientReader := encoding.DecodeBodyAddons(reader, request, responseAddons, trafficState, ctx)
var err error
@ -564,7 +564,7 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
}
// default: clientWriter := bufferWriter
clientWriter := encoding.EncodeBodyAddons(bufferWriter, request, requestAddons, trafficState, ctx)
clientWriter := encoding.EncodeBodyAddons(bufferWriter, request, responseAddons, trafficState, ctx)
multiBuffer, err1 := serverReader.ReadMultiBuffer()
if err1 != nil {
return err1 // ...

View file

@ -116,7 +116,7 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
account := request.User.Account.(*vless.MemoryAccount)
requestAddons := &encoding.Addons{
requestAddons := &proxy.Addons{
Flow: account.Flow,
}
encoding.PopulateSeed(account.Seed, requestAddons)