Added tcp fragmentation for freedom outbound (#2021)

* Added tcp fragmentation for freedom outbound

* Added TCP_NODELAY to outbound sockopt

* Changed fragment parameters to accept ranges and changed strategy to use length

* Changed packetNumber to packets, supporting range.

* Refactored the freedom fragment logic

* Refine Write()

---------

Co-authored-by: RPRX <63339210+RPRX@users.noreply.github.com>
This commit is contained in:
sambali9 2023-05-22 04:59:58 +02:00 committed by GitHub
parent c80646a045
commit 5f5ae37571
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
10 changed files with 392 additions and 71 deletions

View File

@ -2,6 +2,7 @@ package conf
import ( import (
"net" "net"
"strconv"
"strings" "strings"
"github.com/golang/protobuf/proto" "github.com/golang/protobuf/proto"
@ -11,10 +12,17 @@ import (
) )
type FreedomConfig struct { type FreedomConfig struct {
DomainStrategy string `json:"domainStrategy"` DomainStrategy string `json:"domainStrategy"`
Timeout *uint32 `json:"timeout"` Timeout *uint32 `json:"timeout"`
Redirect string `json:"redirect"` Redirect string `json:"redirect"`
UserLevel uint32 `json:"userLevel"` UserLevel uint32 `json:"userLevel"`
Fragment *Fragment `json:"fragment"`
}
type Fragment struct {
Packets string `json:"packets"`
Length string `json:"length"`
Interval string `json:"interval"`
} }
// Build implements Buildable // Build implements Buildable
@ -30,6 +38,88 @@ func (c *FreedomConfig) Build() (proto.Message, error) {
config.DomainStrategy = freedom.Config_USE_IP6 config.DomainStrategy = freedom.Config_USE_IP6
} }
if c.Fragment != nil {
if len(c.Fragment.Interval) == 0 || len(c.Fragment.Length) == 0 {
return nil, newError("Invalid interval or length")
}
intervalMinMax := strings.Split(c.Fragment.Interval, "-")
var minInterval, maxInterval int64
var err, err2 error
if len(intervalMinMax) == 2 {
minInterval, err = strconv.ParseInt(intervalMinMax[0], 10, 64)
maxInterval, err2 = strconv.ParseInt(intervalMinMax[1], 10, 64)
} else {
minInterval, err = strconv.ParseInt(intervalMinMax[0], 10, 64)
maxInterval = minInterval
}
if err != nil {
return nil, newError("Invalid minimum interval: ", err).Base(err)
}
if err2 != nil {
return nil, newError("Invalid maximum interval: ", err2).Base(err2)
}
lengthMinMax := strings.Split(c.Fragment.Length, "-")
var minLength, maxLength int64
if len(lengthMinMax) == 2 {
minLength, err = strconv.ParseInt(lengthMinMax[0], 10, 64)
maxLength, err2 = strconv.ParseInt(lengthMinMax[1], 10, 64)
} else {
minLength, err = strconv.ParseInt(lengthMinMax[0], 10, 64)
maxLength = minLength
}
if err != nil {
return nil, newError("Invalid minimum length: ", err).Base(err)
}
if err2 != nil {
return nil, newError("Invalid maximum length: ", err2).Base(err2)
}
if minInterval > maxInterval {
minInterval, maxInterval = maxInterval, minInterval
}
if minLength > maxLength {
minLength, maxLength = maxLength, minLength
}
config.Fragment = &freedom.Fragment{
MinInterval: int32(minInterval),
MaxInterval: int32(maxInterval),
MinLength: int32(minLength),
MaxLength: int32(maxLength),
}
if len(c.Fragment.Packets) > 0 {
packetRange := strings.Split(c.Fragment.Packets, "-")
var startPacket, endPacket int64
if len(packetRange) == 2 {
startPacket, err = strconv.ParseInt(packetRange[0], 10, 64)
endPacket, err2 = strconv.ParseInt(packetRange[1], 10, 64)
} else {
startPacket, err = strconv.ParseInt(packetRange[0], 10, 64)
endPacket = startPacket
}
if err != nil {
return nil, newError("Invalid start packet: ", err).Base(err)
}
if err2 != nil {
return nil, newError("Invalid end packet: ", err2).Base(err2)
}
if startPacket > endPacket {
return nil, newError("Invalid packet range: ", c.Fragment.Packets)
}
if startPacket < 1 {
return nil, newError("Cannot start from packet 0")
}
config.Fragment.StartPacket = int32(startPacket)
config.Fragment.EndPacket = int32(endPacket)
} else {
config.Fragment.StartPacket = 0
config.Fragment.EndPacket = 0
}
}
if c.Timeout != nil { if c.Timeout != nil {
config.Timeout = *c.Timeout config.Timeout = *c.Timeout
} }

View File

@ -617,7 +617,8 @@ type SocketConfig struct {
TCPKeepAliveIdle int32 `json:"tcpKeepAliveIdle"` TCPKeepAliveIdle int32 `json:"tcpKeepAliveIdle"`
TCPCongestion string `json:"tcpCongestion"` TCPCongestion string `json:"tcpCongestion"`
TCPWindowClamp int32 `json:"tcpWindowClamp"` TCPWindowClamp int32 `json:"tcpWindowClamp"`
TCPMaxSeg int32 `json:"tcpMaxSeg"` TCPMaxSeg int32 `json:"tcpMaxSeg"`
TcpNoDelay bool `json:"tcpNoDelay"`
TCPUserTimeout int32 `json:"tcpUserTimeout"` TCPUserTimeout int32 `json:"tcpUserTimeout"`
V6only bool `json:"v6only"` V6only bool `json:"v6only"`
Interface string `json:"interface"` Interface string `json:"interface"`
@ -671,7 +672,8 @@ func (c *SocketConfig) Build() (*internet.SocketConfig, error) {
TcpKeepAliveIdle: c.TCPKeepAliveIdle, TcpKeepAliveIdle: c.TCPKeepAliveIdle,
TcpCongestion: c.TCPCongestion, TcpCongestion: c.TCPCongestion,
TcpWindowClamp: c.TCPWindowClamp, TcpWindowClamp: c.TCPWindowClamp,
TcpMaxSeg: c.TCPMaxSeg, TcpMaxSeg: c.TCPMaxSeg,
TcpNoDelay: c.TcpNoDelay,
TcpUserTimeout: c.TCPUserTimeout, TcpUserTimeout: c.TCPUserTimeout,
V6Only: c.V6only, V6Only: c.V6only,
Interface: c.Interface, Interface: c.Interface,

View File

@ -70,7 +70,7 @@ func (x Config_DomainStrategy) Number() protoreflect.EnumNumber {
// Deprecated: Use Config_DomainStrategy.Descriptor instead. // Deprecated: Use Config_DomainStrategy.Descriptor instead.
func (Config_DomainStrategy) EnumDescriptor() ([]byte, []int) { func (Config_DomainStrategy) EnumDescriptor() ([]byte, []int) {
return file_proxy_freedom_config_proto_rawDescGZIP(), []int{1, 0} return file_proxy_freedom_config_proto_rawDescGZIP(), []int{2, 0}
} }
type DestinationOverride struct { type DestinationOverride struct {
@ -120,6 +120,93 @@ func (x *DestinationOverride) GetServer() *protocol.ServerEndpoint {
return nil return nil
} }
type Fragment struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
MinInterval int32 `protobuf:"varint,1,opt,name=min_interval,json=minInterval,proto3" json:"min_interval,omitempty"`
MaxInterval int32 `protobuf:"varint,2,opt,name=max_interval,json=maxInterval,proto3" json:"max_interval,omitempty"`
MinLength int32 `protobuf:"varint,3,opt,name=min_length,json=minLength,proto3" json:"min_length,omitempty"`
MaxLength int32 `protobuf:"varint,4,opt,name=max_length,json=maxLength,proto3" json:"max_length,omitempty"`
StartPacket int32 `protobuf:"varint,5,opt,name=start_packet,json=startPacket,proto3" json:"start_packet,omitempty"`
EndPacket int32 `protobuf:"varint,6,opt,name=end_packet,json=endPacket,proto3" json:"end_packet,omitempty"`
}
func (x *Fragment) Reset() {
*x = Fragment{}
if protoimpl.UnsafeEnabled {
mi := &file_proxy_freedom_config_proto_msgTypes[1]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *Fragment) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*Fragment) ProtoMessage() {}
func (x *Fragment) ProtoReflect() protoreflect.Message {
mi := &file_proxy_freedom_config_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 Fragment.ProtoReflect.Descriptor instead.
func (*Fragment) Descriptor() ([]byte, []int) {
return file_proxy_freedom_config_proto_rawDescGZIP(), []int{1}
}
func (x *Fragment) GetMinInterval() int32 {
if x != nil {
return x.MinInterval
}
return 0
}
func (x *Fragment) GetMaxInterval() int32 {
if x != nil {
return x.MaxInterval
}
return 0
}
func (x *Fragment) GetMinLength() int32 {
if x != nil {
return x.MinLength
}
return 0
}
func (x *Fragment) GetMaxLength() int32 {
if x != nil {
return x.MaxLength
}
return 0
}
func (x *Fragment) GetStartPacket() int32 {
if x != nil {
return x.StartPacket
}
return 0
}
func (x *Fragment) GetEndPacket() int32 {
if x != nil {
return x.EndPacket
}
return 0
}
type Config struct { type Config struct {
state protoimpl.MessageState state protoimpl.MessageState
sizeCache protoimpl.SizeCache sizeCache protoimpl.SizeCache
@ -130,12 +217,13 @@ type Config struct {
Timeout uint32 `protobuf:"varint,2,opt,name=timeout,proto3" json:"timeout,omitempty"` Timeout uint32 `protobuf:"varint,2,opt,name=timeout,proto3" json:"timeout,omitempty"`
DestinationOverride *DestinationOverride `protobuf:"bytes,3,opt,name=destination_override,json=destinationOverride,proto3" json:"destination_override,omitempty"` DestinationOverride *DestinationOverride `protobuf:"bytes,3,opt,name=destination_override,json=destinationOverride,proto3" json:"destination_override,omitempty"`
UserLevel uint32 `protobuf:"varint,4,opt,name=user_level,json=userLevel,proto3" json:"user_level,omitempty"` UserLevel uint32 `protobuf:"varint,4,opt,name=user_level,json=userLevel,proto3" json:"user_level,omitempty"`
Fragment *Fragment `protobuf:"bytes,5,opt,name=fragment,proto3" json:"fragment,omitempty"`
} }
func (x *Config) Reset() { func (x *Config) Reset() {
*x = Config{} *x = Config{}
if protoimpl.UnsafeEnabled { if protoimpl.UnsafeEnabled {
mi := &file_proxy_freedom_config_proto_msgTypes[1] mi := &file_proxy_freedom_config_proto_msgTypes[2]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi) ms.StoreMessageInfo(mi)
} }
@ -148,7 +236,7 @@ func (x *Config) String() string {
func (*Config) ProtoMessage() {} func (*Config) ProtoMessage() {}
func (x *Config) ProtoReflect() protoreflect.Message { func (x *Config) ProtoReflect() protoreflect.Message {
mi := &file_proxy_freedom_config_proto_msgTypes[1] mi := &file_proxy_freedom_config_proto_msgTypes[2]
if protoimpl.UnsafeEnabled && x != nil { if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil { if ms.LoadMessageInfo() == nil {
@ -161,7 +249,7 @@ func (x *Config) ProtoReflect() protoreflect.Message {
// Deprecated: Use Config.ProtoReflect.Descriptor instead. // Deprecated: Use Config.ProtoReflect.Descriptor instead.
func (*Config) Descriptor() ([]byte, []int) { func (*Config) Descriptor() ([]byte, []int) {
return file_proxy_freedom_config_proto_rawDescGZIP(), []int{1} return file_proxy_freedom_config_proto_rawDescGZIP(), []int{2}
} }
func (x *Config) GetDomainStrategy() Config_DomainStrategy { func (x *Config) GetDomainStrategy() Config_DomainStrategy {
@ -193,6 +281,13 @@ func (x *Config) GetUserLevel() uint32 {
return 0 return 0
} }
func (x *Config) GetFragment() *Fragment {
if x != nil {
return x.Fragment
}
return nil
}
var File_proxy_freedom_config_proto protoreflect.FileDescriptor var File_proxy_freedom_config_proto protoreflect.FileDescriptor
var file_proxy_freedom_config_proto_rawDesc = []byte{ var file_proxy_freedom_config_proto_rawDesc = []byte{
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0x6f, 0x33,
} }
var ( var (
@ -248,22 +360,24 @@ 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_enumTypes = make([]protoimpl.EnumInfo, 1)
var file_proxy_freedom_config_proto_msgTypes = make([]protoimpl.MessageInfo, 2) var file_proxy_freedom_config_proto_msgTypes = make([]protoimpl.MessageInfo, 3)
var file_proxy_freedom_config_proto_goTypes = []interface{}{ var file_proxy_freedom_config_proto_goTypes = []interface{}{
(Config_DomainStrategy)(0), // 0: xray.proxy.freedom.Config.DomainStrategy (Config_DomainStrategy)(0), // 0: xray.proxy.freedom.Config.DomainStrategy
(*DestinationOverride)(nil), // 1: xray.proxy.freedom.DestinationOverride (*DestinationOverride)(nil), // 1: xray.proxy.freedom.DestinationOverride
(*Config)(nil), // 2: xray.proxy.freedom.Config (*Fragment)(nil), // 2: xray.proxy.freedom.Fragment
(*protocol.ServerEndpoint)(nil), // 3: xray.common.protocol.ServerEndpoint (*Config)(nil), // 3: xray.proxy.freedom.Config
(*protocol.ServerEndpoint)(nil), // 4: xray.common.protocol.ServerEndpoint
} }
var file_proxy_freedom_config_proto_depIdxs = []int32{ var file_proxy_freedom_config_proto_depIdxs = []int32{
3, // 0: xray.proxy.freedom.DestinationOverride.server:type_name -> xray.common.protocol.ServerEndpoint 4, // 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 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 1, // 2: xray.proxy.freedom.Config.destination_override:type_name -> xray.proxy.freedom.DestinationOverride
3, // [3:3] is the sub-list for method output_type 2, // 3: xray.proxy.freedom.Config.fragment:type_name -> xray.proxy.freedom.Fragment
3, // [3:3] is the sub-list for method input_type 4, // [4:4] is the sub-list for method output_type
3, // [3:3] is the sub-list for extension type_name 4, // [4:4] is the sub-list for method input_type
3, // [3:3] is the sub-list for extension extendee 4, // [4:4] is the sub-list for extension type_name
0, // [0:3] is the sub-list for field 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_freedom_config_proto_init() } func init() { file_proxy_freedom_config_proto_init() }
@ -285,6 +399,18 @@ func file_proxy_freedom_config_proto_init() {
} }
} }
file_proxy_freedom_config_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} { file_proxy_freedom_config_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*Fragment); 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[2].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*Config); i { switch v := v.(*Config); i {
case 0: case 0:
return &v.state return &v.state
@ -303,7 +429,7 @@ func file_proxy_freedom_config_proto_init() {
GoPackagePath: reflect.TypeOf(x{}).PkgPath(), GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_proxy_freedom_config_proto_rawDesc, RawDescriptor: file_proxy_freedom_config_proto_rawDesc,
NumEnums: 1, NumEnums: 1,
NumMessages: 2, NumMessages: 3,
NumExtensions: 0, NumExtensions: 0,
NumServices: 0, NumServices: 0,
}, },

View File

@ -12,6 +12,15 @@ message DestinationOverride {
xray.common.protocol.ServerEndpoint server = 1; xray.common.protocol.ServerEndpoint server = 1;
} }
message Fragment {
int32 min_interval = 1;
int32 max_interval = 2;
int32 min_length = 3;
int32 max_length = 4;
int32 start_packet = 5;
int32 end_packet = 6;
}
message Config { message Config {
enum DomainStrategy { enum DomainStrategy {
AS_IS = 0; AS_IS = 0;
@ -23,4 +32,5 @@ message Config {
uint32 timeout = 2 [deprecated = true]; uint32 timeout = 2 [deprecated = true];
DestinationOverride destination_override = 3; DestinationOverride destination_override = 3;
uint32 user_level = 4; uint32 user_level = 4;
Fragment fragment = 5;
} }

View File

@ -4,6 +4,9 @@ package freedom
import ( import (
"context" "context"
"crypto/rand"
"io"
"math/big"
"time" "time"
"github.com/xtls/xray-core/common" "github.com/xtls/xray-core/common"
@ -169,7 +172,21 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
var writer buf.Writer var writer buf.Writer
if destination.Network == net.Network_TCP { if destination.Network == net.Network_TCP {
writer = buf.NewWriter(conn) if h.config.Fragment != nil {
writer = buf.NewWriter(
&FragmentWriter{
Writer: conn,
minLength: int(h.config.Fragment.MinLength),
maxLength: int(h.config.Fragment.MaxLength),
minInterval: time.Duration(h.config.Fragment.MinInterval) * time.Millisecond,
maxInterval: time.Duration(h.config.Fragment.MaxInterval) * time.Millisecond,
startPacket: int(h.config.Fragment.StartPacket),
endPacket: int(h.config.Fragment.EndPacket),
PacketCount: 0,
})
} else {
writer = buf.NewWriter(conn)
}
} else { } else {
writer = NewPacketWriter(conn, h, ctx, UDPOverride) writer = NewPacketWriter(conn, h, ctx, UDPOverride)
} }
@ -324,3 +341,50 @@ func (w *PacketWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
} }
return nil return nil
} }
type FragmentWriter struct {
io.Writer
minLength int
maxLength int
minInterval time.Duration
maxInterval time.Duration
startPacket int
endPacket int
PacketCount int
}
func (w *FragmentWriter) Write(buf []byte) (int, error) {
w.PacketCount += 1
if (w.startPacket != 0 && (w.PacketCount < w.startPacket || w.PacketCount > w.endPacket)) || len(buf) <= w.minLength {
return w.Writer.Write(buf)
}
nTotal := 0
for {
randomBytesTo := int(randBetween(int64(w.minLength), int64(w.maxLength))) + nTotal
if randomBytesTo > len(buf) {
randomBytesTo = len(buf)
}
n, err := w.Writer.Write(buf[nTotal:randomBytesTo])
if err != nil {
return nTotal + n, err
}
nTotal += n
if nTotal >= len(buf) {
return nTotal, nil
}
randomInterval := randBetween(int64(w.minInterval), int64(w.maxInterval))
time.Sleep(time.Duration(randomInterval))
}
}
// stolen from github.com/xtls/xray-core/transport/internet/reality
func randBetween(left int64, right int64) int64 {
if left == right {
return left
}
bigInt, _ := rand.Int(rand.Reader, big.NewInt(right-left))
return left + bigInt.Int64()
}

View File

@ -1,7 +1,7 @@
// Code generated by protoc-gen-go. DO NOT EDIT. // Code generated by protoc-gen-go. DO NOT EDIT.
// versions: // versions:
// protoc-gen-go v1.28.1 // protoc-gen-go v1.28.1
// protoc v4.22.0 // protoc v3.12.4
// source: transport/internet/config.proto // source: transport/internet/config.proto
package internet package internet
@ -430,6 +430,7 @@ type SocketConfig struct {
TcpWindowClamp int32 `protobuf:"varint,15,opt,name=tcp_window_clamp,json=tcpWindowClamp,proto3" json:"tcp_window_clamp,omitempty"` TcpWindowClamp int32 `protobuf:"varint,15,opt,name=tcp_window_clamp,json=tcpWindowClamp,proto3" json:"tcp_window_clamp,omitempty"`
TcpUserTimeout int32 `protobuf:"varint,16,opt,name=tcp_user_timeout,json=tcpUserTimeout,proto3" json:"tcp_user_timeout,omitempty"` TcpUserTimeout int32 `protobuf:"varint,16,opt,name=tcp_user_timeout,json=tcpUserTimeout,proto3" json:"tcp_user_timeout,omitempty"`
TcpMaxSeg int32 `protobuf:"varint,17,opt,name=tcp_max_seg,json=tcpMaxSeg,proto3" json:"tcp_max_seg,omitempty"` TcpMaxSeg int32 `protobuf:"varint,17,opt,name=tcp_max_seg,json=tcpMaxSeg,proto3" json:"tcp_max_seg,omitempty"`
TcpNoDelay bool `protobuf:"varint,18,opt,name=tcp_no_delay,json=tcpNoDelay,proto3" json:"tcp_no_delay,omitempty"`
} }
func (x *SocketConfig) Reset() { func (x *SocketConfig) Reset() {
@ -583,6 +584,13 @@ func (x *SocketConfig) GetTcpMaxSeg() int32 {
return 0 return 0
} }
func (x *SocketConfig) GetTcpNoDelay() bool {
if x != nil {
return x.TcpNoDelay
}
return false
}
var File_transport_internet_config_proto protoreflect.FileDescriptor var File_transport_internet_config_proto protoreflect.FileDescriptor
var file_transport_internet_config_proto_rawDesc = []byte{ var file_transport_internet_config_proto_rawDesc = []byte{
@ -635,7 +643,7 @@ var file_transport_internet_config_proto_rawDesc = []byte{
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@ -681,27 +689,29 @@ var file_transport_internet_config_proto_rawDesc = []byte{
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} }
var ( var (

View File

@ -108,4 +108,6 @@ message SocketConfig {
int32 tcp_user_timeout = 16; int32 tcp_user_timeout = 16;
int32 tcp_max_seg = 17; int32 tcp_max_seg = 17;
bool tcp_no_delay = 18;
} }

View File

@ -126,6 +126,12 @@ func applyOutboundSocketOptions(network string, address string, fd uintptr, conf
return newError("failed to unset SO_KEEPALIVE", err) return newError("failed to unset SO_KEEPALIVE", err)
} }
} }
if config.TcpNoDelay {
if err := unix.SetsockoptInt(int(fd), unix.IPPROTO_TCP, unix.TCP_NODELAY, 1); err != nil {
return newError("failed to set TCP_NODELAY", err)
}
}
} }
return nil return nil

View File

@ -101,6 +101,12 @@ func applyOutboundSocketOptions(network string, address string, fd uintptr, conf
} }
} }
if config.TcpNoDelay {
if err := syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, unix.TCP_NODELAY, 1); err != nil {
return newError("failed to set TCP_NODELAY", err)
}
}
} }
if config.Tproxy.IsEnabled() { if config.Tproxy.IsEnabled() {

View File

@ -34,6 +34,11 @@ func applyOutboundSocketOptions(network string, address string, fd uintptr, conf
return newError("failed to unset SO_KEEPALIVE", err) return newError("failed to unset SO_KEEPALIVE", err)
} }
} }
if config.TcpNoDelay {
if err := syscall.SetsockoptInt(syscall.Handle(fd), syscall.IPPROTO_TCP, syscall.TCP_NODELAY, 1); err != nil {
return newError("failed to set TCP_NODELAY", err)
}
}
} }
return nil return nil