mirror of
https://github.com/XTLS/Xray-core.git
synced 2024-11-22 15:03:02 +00:00
UDP noise (#3711)
* added udp noise * adding protobuf settings * freedom json parser and clean up * resolve confict * fix and clean up * use net.conn instead of packetconnwrapper * avoid constructing SequentialWriter directly --------- Co-authored-by: mmmray <142015632+mmmray@users.noreply.github.com>
This commit is contained in:
dragonbreath2000
GitHub
parent
8674ed5a0d
commit
002d08bf83
@ -18,6 +18,7 @@ type FreedomConfig struct {
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Redirect string `json:"redirect"`
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UserLevel uint32 `json:"userLevel"`
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Fragment *Fragment `json:"fragment"`
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Noise *Noise `json:"noise"`
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ProxyProtocol uint32 `json:"proxyProtocol"`
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}
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@ -27,6 +28,11 @@ type Fragment struct {
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Interval string `json:"interval"`
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}
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type Noise struct {
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Packet string `json:"packet"`
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Delay string `json:"delay"`
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}
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// Build implements Buildable
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func (c *FreedomConfig) Build() (proto.Message, error) {
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config := new(freedom.Config)
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@ -143,6 +149,76 @@ func (c *FreedomConfig) Build() (proto.Message, error) {
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}
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}
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}
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if c.Noise != nil {
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config.Noise = new(freedom.Noise)
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var err, err2 error
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p := strings.Split(strings.ToLower(c.Noise.Packet), ":")
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if len(p) != 2 {
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return nil, errors.New("invalid type for packet")
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}
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switch p[0] {
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case "rand":
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randValue := strings.Split(p[1], "-")
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if len(randValue) > 2 {
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return nil, errors.New("Only 2 values are allowed for rand")
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}
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if len(randValue) == 2 {
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config.Noise.LengthMin, err = strconv.ParseUint(randValue[0], 10, 64)
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config.Noise.LengthMax, err2 = strconv.ParseUint(randValue[1], 10, 64)
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}
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if len(randValue) == 1 {
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config.Noise.LengthMin, err = strconv.ParseUint(randValue[0], 10, 64)
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config.Noise.LengthMax = config.Noise.LengthMin
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}
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if err != nil {
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return nil, errors.New("invalid value for rand LengthMin").Base(err)
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}
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if err2 != nil {
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return nil, errors.New("invalid value for rand LengthMax").Base(err2)
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}
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if config.Noise.LengthMin > config.Noise.LengthMax {
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config.Noise.LengthMin, config.Noise.LengthMax = config.Noise.LengthMax, config.Noise.LengthMin
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}
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if config.Noise.LengthMin == 0 {
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return nil, errors.New("rand lengthMin or lengthMax cannot be 0")
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}
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case "str":
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//user input string
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config.Noise.StrNoise = strings.TrimSpace(p[1])
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default:
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return nil, errors.New("Invalid packet,only rand and str are supported")
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}
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if c.Noise.Delay != "" {
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d := strings.Split(strings.ToLower(c.Noise.Delay), "-")
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if len(d) > 2 {
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return nil, errors.New("Invalid delay value")
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}
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if len(d) == 2 {
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config.Noise.DelayMin, err = strconv.ParseUint(d[0], 10, 64)
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config.Noise.DelayMax, err2 = strconv.ParseUint(d[1], 10, 64)
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} else {
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config.Noise.DelayMin, err = strconv.ParseUint(d[0], 10, 64)
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config.Noise.DelayMax = config.Noise.DelayMin
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}
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if err != nil {
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return nil, errors.New("Invalid value for DelayMin").Base(err)
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}
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if err2 != nil {
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return nil, errors.New("Invalid value for DelayMax").Base(err2)
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}
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if config.Noise.DelayMin > config.Noise.DelayMax {
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config.Noise.DelayMin, config.Noise.DelayMax = config.Noise.DelayMax, config.Noise.DelayMin
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}
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if config.Noise.DelayMin == 0 {
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return nil, errors.New("DelayMin or DelayMax cannot be 0")
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}
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} else {
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config.Noise.DelayMin = 0
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}
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}
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if c.Timeout != nil {
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config.Timeout = *c.Timeout
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@ -91,7 +91,7 @@ func (x Config_DomainStrategy) Number() protoreflect.EnumNumber {
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// Deprecated: Use Config_DomainStrategy.Descriptor instead.
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func (Config_DomainStrategy) EnumDescriptor() ([]byte, []int) {
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return file_proxy_freedom_config_proto_rawDescGZIP(), []int{2, 0}
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return file_proxy_freedom_config_proto_rawDescGZIP(), []int{3, 0}
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}
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type DestinationOverride struct {
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@ -228,6 +228,85 @@ func (x *Fragment) GetIntervalMax() uint64 {
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return 0
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}
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type Noise struct {
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state protoimpl.MessageState
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sizeCache protoimpl.SizeCache
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unknownFields protoimpl.UnknownFields
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LengthMin uint64 `protobuf:"varint,1,opt,name=length_min,json=lengthMin,proto3" json:"length_min,omitempty"`
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LengthMax uint64 `protobuf:"varint,2,opt,name=length_max,json=lengthMax,proto3" json:"length_max,omitempty"`
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DelayMin uint64 `protobuf:"varint,3,opt,name=delay_min,json=delayMin,proto3" json:"delay_min,omitempty"`
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DelayMax uint64 `protobuf:"varint,4,opt,name=delay_max,json=delayMax,proto3" json:"delay_max,omitempty"`
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StrNoise string `protobuf:"bytes,5,opt,name=str_noise,json=strNoise,proto3" json:"str_noise,omitempty"`
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}
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func (x *Noise) Reset() {
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*x = Noise{}
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if protoimpl.UnsafeEnabled {
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mi := &file_proxy_freedom_config_proto_msgTypes[2]
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ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
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ms.StoreMessageInfo(mi)
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}
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}
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func (x *Noise) String() string {
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return protoimpl.X.MessageStringOf(x)
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}
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func (*Noise) ProtoMessage() {}
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func (x *Noise) ProtoReflect() protoreflect.Message {
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mi := &file_proxy_freedom_config_proto_msgTypes[2]
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if protoimpl.UnsafeEnabled && x != nil {
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ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
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if ms.LoadMessageInfo() == nil {
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ms.StoreMessageInfo(mi)
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}
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return ms
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}
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return mi.MessageOf(x)
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}
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// Deprecated: Use Noise.ProtoReflect.Descriptor instead.
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func (*Noise) Descriptor() ([]byte, []int) {
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return file_proxy_freedom_config_proto_rawDescGZIP(), []int{2}
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}
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func (x *Noise) GetLengthMin() uint64 {
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if x != nil {
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return x.LengthMin
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}
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return 0
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}
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func (x *Noise) GetLengthMax() uint64 {
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if x != nil {
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return x.LengthMax
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}
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return 0
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}
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func (x *Noise) GetDelayMin() uint64 {
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if x != nil {
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return x.DelayMin
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}
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return 0
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}
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func (x *Noise) GetDelayMax() uint64 {
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if x != nil {
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return x.DelayMax
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}
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return 0
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}
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func (x *Noise) GetStrNoise() string {
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if x != nil {
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return x.StrNoise
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}
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return ""
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}
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type Config struct {
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state protoimpl.MessageState
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sizeCache protoimpl.SizeCache
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@ -240,12 +319,13 @@ type Config struct {
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UserLevel uint32 `protobuf:"varint,4,opt,name=user_level,json=userLevel,proto3" json:"user_level,omitempty"`
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Fragment *Fragment `protobuf:"bytes,5,opt,name=fragment,proto3" json:"fragment,omitempty"`
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ProxyProtocol uint32 `protobuf:"varint,6,opt,name=proxy_protocol,json=proxyProtocol,proto3" json:"proxy_protocol,omitempty"`
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Noise *Noise `protobuf:"bytes,7,opt,name=noise,proto3" json:"noise,omitempty"`
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}
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func (x *Config) Reset() {
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*x = Config{}
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if protoimpl.UnsafeEnabled {
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mi := &file_proxy_freedom_config_proto_msgTypes[2]
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mi := &file_proxy_freedom_config_proto_msgTypes[3]
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ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
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ms.StoreMessageInfo(mi)
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}
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@ -258,7 +338,7 @@ func (x *Config) String() string {
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func (*Config) ProtoMessage() {}
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func (x *Config) ProtoReflect() protoreflect.Message {
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mi := &file_proxy_freedom_config_proto_msgTypes[2]
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mi := &file_proxy_freedom_config_proto_msgTypes[3]
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if protoimpl.UnsafeEnabled && x != nil {
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ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
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if ms.LoadMessageInfo() == nil {
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@ -271,7 +351,7 @@ func (x *Config) ProtoReflect() protoreflect.Message {
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// Deprecated: Use Config.ProtoReflect.Descriptor instead.
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func (*Config) Descriptor() ([]byte, []int) {
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return file_proxy_freedom_config_proto_rawDescGZIP(), []int{2}
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return file_proxy_freedom_config_proto_rawDescGZIP(), []int{3}
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}
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func (x *Config) GetDomainStrategy() Config_DomainStrategy {
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@ -317,6 +397,13 @@ func (x *Config) GetProxyProtocol() uint32 {
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return 0
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}
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func (x *Config) GetNoise() *Noise {
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if x != nil {
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return x.Noise
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}
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return nil
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}
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var File_proxy_freedom_config_proto protoreflect.FileDescriptor
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var file_proxy_freedom_config_proto_rawDesc = []byte{
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@ -343,29 +430,42 @@ var file_proxy_freedom_config_proto_rawDesc = []byte{
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0x78, 0x79, 0x2e, 0x66, 0x72, 0x65, 0x65, 0x64, 0x6f, 0x6d, 0x2e, 0x44, 0x65, 0x73, 0x74, 0x69,
|
||||
0x6e, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x4f, 0x76, 0x65, 0x72, 0x72, 0x69, 0x64, 0x65, 0x52, 0x13,
|
||||
0x64, 0x65, 0x73, 0x74, 0x69, 0x6e, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x4f, 0x76, 0x65, 0x72, 0x72,
|
||||
0x69, 0x64, 0x65, 0x12, 0x1d, 0x0a, 0x0a, 0x75, 0x73, 0x65, 0x72, 0x5f, 0x6c, 0x65, 0x76, 0x65,
|
||||
0x6c, 0x18, 0x04, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x09, 0x75, 0x73, 0x65, 0x72, 0x4c, 0x65, 0x76,
|
||||
0x65, 0x6c, 0x12, 0x38, 0x0a, 0x08, 0x66, 0x72, 0x61, 0x67, 0x6d, 0x65, 0x6e, 0x74, 0x18, 0x05,
|
||||
0x20, 0x01, 0x28, 0x0b, 0x32, 0x1c, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x78,
|
||||
0x79, 0x2e, 0x66, 0x72, 0x65, 0x65, 0x64, 0x6f, 0x6d, 0x2e, 0x46, 0x72, 0x61, 0x67, 0x6d, 0x65,
|
||||
0x6e, 0x74, 0x52, 0x08, 0x66, 0x72, 0x61, 0x67, 0x6d, 0x65, 0x6e, 0x74, 0x12, 0x25, 0x0a, 0x0e,
|
||||
0x70, 0x72, 0x6f, 0x78, 0x79, 0x5f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x63, 0x6f, 0x6c, 0x18, 0x06,
|
||||
0x20, 0x01, 0x28, 0x0d, 0x52, 0x0d, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x50, 0x72, 0x6f, 0x74, 0x6f,
|
||||
0x63, 0x6f, 0x6c, 0x12, 0x2f, 0x0a, 0x05, 0x6e, 0x6f, 0x69, 0x73, 0x65, 0x18, 0x07, 0x20, 0x01,
|
||||
0x28, 0x0b, 0x32, 0x19, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2e,
|
||||
0x66, 0x72, 0x65, 0x65, 0x64, 0x6f, 0x6d, 0x2e, 0x4e, 0x6f, 0x69, 0x73, 0x65, 0x52, 0x05, 0x6e,
|
||||
0x6f, 0x69, 0x73, 0x65, 0x22, 0xa9, 0x01, 0x0a, 0x0e, 0x44, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x53,
|
||||
0x74, 0x72, 0x61, 0x74, 0x65, 0x67, 0x79, 0x12, 0x09, 0x0a, 0x05, 0x41, 0x53, 0x5f, 0x49, 0x53,
|
||||
0x10, 0x00, 0x12, 0x0a, 0x0a, 0x06, 0x55, 0x53, 0x45, 0x5f, 0x49, 0x50, 0x10, 0x01, 0x12, 0x0b,
|
||||
0x0a, 0x07, 0x55, 0x53, 0x45, 0x5f, 0x49, 0x50, 0x34, 0x10, 0x02, 0x12, 0x0b, 0x0a, 0x07, 0x55,
|
||||
@ -398,24 +498,26 @@ func file_proxy_freedom_config_proto_rawDescGZIP() []byte {
|
||||
}
|
||||
|
||||
var file_proxy_freedom_config_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
|
||||
var file_proxy_freedom_config_proto_msgTypes = make([]protoimpl.MessageInfo, 3)
|
||||
var file_proxy_freedom_config_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
|
||||
var file_proxy_freedom_config_proto_goTypes = []any{
|
||||
(Config_DomainStrategy)(0), // 0: xray.proxy.freedom.Config.DomainStrategy
|
||||
(*DestinationOverride)(nil), // 1: xray.proxy.freedom.DestinationOverride
|
||||
(*Fragment)(nil), // 2: xray.proxy.freedom.Fragment
|
||||
(*Config)(nil), // 3: xray.proxy.freedom.Config
|
||||
(*protocol.ServerEndpoint)(nil), // 4: xray.common.protocol.ServerEndpoint
|
||||
(*Noise)(nil), // 3: xray.proxy.freedom.Noise
|
||||
(*Config)(nil), // 4: xray.proxy.freedom.Config
|
||||
(*protocol.ServerEndpoint)(nil), // 5: xray.common.protocol.ServerEndpoint
|
||||
}
|
||||
var file_proxy_freedom_config_proto_depIdxs = []int32{
|
||||
4, // 0: xray.proxy.freedom.DestinationOverride.server:type_name -> xray.common.protocol.ServerEndpoint
|
||||
5, // 0: xray.proxy.freedom.DestinationOverride.server:type_name -> xray.common.protocol.ServerEndpoint
|
||||
0, // 1: xray.proxy.freedom.Config.domain_strategy:type_name -> xray.proxy.freedom.Config.DomainStrategy
|
||||
1, // 2: xray.proxy.freedom.Config.destination_override:type_name -> xray.proxy.freedom.DestinationOverride
|
||||
2, // 3: xray.proxy.freedom.Config.fragment:type_name -> xray.proxy.freedom.Fragment
|
||||
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
|
||||
3, // 4: xray.proxy.freedom.Config.noise:type_name -> xray.proxy.freedom.Noise
|
||||
5, // [5:5] is the sub-list for method output_type
|
||||
5, // [5:5] is the sub-list for method input_type
|
||||
5, // [5:5] is the sub-list for extension type_name
|
||||
5, // [5:5] is the sub-list for extension extendee
|
||||
0, // [0:5] is the sub-list for field type_name
|
||||
}
|
||||
|
||||
func init() { file_proxy_freedom_config_proto_init() }
|
||||
@ -449,6 +551,18 @@ func file_proxy_freedom_config_proto_init() {
|
||||
}
|
||||
}
|
||||
file_proxy_freedom_config_proto_msgTypes[2].Exporter = func(v any, i int) any {
|
||||
switch v := v.(*Noise); i {
|
||||
case 0:
|
||||
return &v.state
|
||||
case 1:
|
||||
return &v.sizeCache
|
||||
case 2:
|
||||
return &v.unknownFields
|
||||
default:
|
||||
return nil
|
||||
}
|
||||
}
|
||||
file_proxy_freedom_config_proto_msgTypes[3].Exporter = func(v any, i int) any {
|
||||
switch v := v.(*Config); i {
|
||||
case 0:
|
||||
return &v.state
|
||||
@ -467,7 +581,7 @@ func file_proxy_freedom_config_proto_init() {
|
||||
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
|
||||
RawDescriptor: file_proxy_freedom_config_proto_rawDesc,
|
||||
NumEnums: 1,
|
||||
NumMessages: 3,
|
||||
NumMessages: 4,
|
||||
NumExtensions: 0,
|
||||
NumServices: 0,
|
||||
},
|
||||
|
||||
@ -20,6 +20,13 @@ message Fragment {
|
||||
uint64 interval_min = 5;
|
||||
uint64 interval_max = 6;
|
||||
}
|
||||
message Noise {
|
||||
uint64 length_min = 1;
|
||||
uint64 length_max = 2;
|
||||
uint64 delay_min = 3;
|
||||
uint64 delay_max = 4;
|
||||
string str_noise = 5;
|
||||
}
|
||||
|
||||
message Config {
|
||||
enum DomainStrategy {
|
||||
@ -41,4 +48,5 @@ message Config {
|
||||
uint32 user_level = 4;
|
||||
Fragment fragment = 5;
|
||||
uint32 proxy_protocol = 6;
|
||||
Noise noise = 7;
|
||||
}
|
||||
|
||||
@ -208,6 +208,16 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
|
||||
}
|
||||
} else {
|
||||
writer = NewPacketWriter(conn, h, ctx, UDPOverride)
|
||||
if h.config.Noise != nil {
|
||||
errors.LogDebug(ctx, "NOISE", h.config.Noise.StrNoise, h.config.Noise.LengthMin, h.config.Noise.LengthMax,
|
||||
h.config.Noise.DelayMin, h.config.Noise.DelayMax)
|
||||
writer = &NoisePacketWriter{
|
||||
Writer: writer,
|
||||
noise: h.config.Noise,
|
||||
firstWrite: true,
|
||||
UDPOverride: UDPOverride,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if err := buf.Copy(input, writer, buf.UpdateActivity(timer)); err != nil {
|
||||
@ -329,6 +339,7 @@ func NewPacketWriter(conn net.Conn, h *Handler, ctx context.Context, UDPOverride
|
||||
UDPOverride: UDPOverride,
|
||||
Conn: iConn,
|
||||
}
|
||||
|
||||
}
|
||||
return &buf.SequentialWriter{Writer: conn}
|
||||
}
|
||||
@ -385,6 +396,45 @@ func (w *PacketWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
|
||||
return nil
|
||||
}
|
||||
|
||||
type NoisePacketWriter struct {
|
||||
buf.Writer
|
||||
noise *Noise
|
||||
firstWrite bool
|
||||
UDPOverride net.Destination
|
||||
}
|
||||
|
||||
// MultiBuffer writer with Noise in first packet
|
||||
func (w *NoisePacketWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
|
||||
if w.firstWrite {
|
||||
w.firstWrite = false
|
||||
//Do not send Noise for dns requests(just to be safe)
|
||||
if w.UDPOverride.Port == 53 {
|
||||
return w.Writer.WriteMultiBuffer(mb)
|
||||
}
|
||||
var noise []byte
|
||||
var err error
|
||||
//User input string
|
||||
if w.noise.StrNoise != "" {
|
||||
noise = []byte(w.noise.StrNoise)
|
||||
} else {
|
||||
//Random noise
|
||||
noise, err = GenerateRandomBytes(randBetween(int64(w.noise.LengthMin),
|
||||
int64(w.noise.LengthMax)))
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
w.Writer.WriteMultiBuffer(buf.MultiBuffer{buf.FromBytes(noise)})
|
||||
|
||||
if w.noise.DelayMin != 0 {
|
||||
time.Sleep(time.Duration(randBetween(int64(w.noise.DelayMin), int64(w.noise.DelayMax))) * time.Millisecond)
|
||||
}
|
||||
|
||||
}
|
||||
return w.Writer.WriteMultiBuffer(mb)
|
||||
}
|
||||
|
||||
type FragmentWriter struct {
|
||||
fragment *Fragment
|
||||
writer io.Writer
|
||||
@ -471,3 +521,13 @@ func randBetween(left int64, right int64) int64 {
|
||||
bigInt, _ := rand.Int(rand.Reader, big.NewInt(right-left))
|
||||
return left + bigInt.Int64()
|
||||
}
|
||||
func GenerateRandomBytes(n int64) ([]byte, error) {
|
||||
b := make([]byte, n)
|
||||
_, err := rand.Read(b)
|
||||
// Note that err == nil only if we read len(b) bytes.
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return b, nil
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user