options for TProxy

transport/internet/config.pb.go

@@ -35,6 +35,7 @@ var TransportProtocol_name = map[int32]string{
 	4: "HTTP",
 	5: "DomainSocket",
 }
+
 var TransportProtocol_value = map[string]int32{
 	"TCP":          0,
 	"UDP":          1,
@@ -47,8 +48,9 @@ var TransportProtocol_value = map[string]int32{
 func (x TransportProtocol) String() string {
 	return proto.EnumName(TransportProtocol_name, int32(x))
 }
+
 func (TransportProtocol) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_config_d7068fe3707ce485, []int{0}
+	return fileDescriptor_91dbc815c3d97a05, []int{0}
 }
 
 type SocketConfig_TCPFastOpenState int32
@@ -67,6 +69,7 @@ var SocketConfig_TCPFastOpenState_name = map[int32]string{
 	1: "Enable",
 	2: "Disable",
 }
+
 var SocketConfig_TCPFastOpenState_value = map[string]int32{
 	"AsIs":    0,
 	"Enable":  1,
@@ -76,8 +79,9 @@ var SocketConfig_TCPFastOpenState_value = map[string]int32{
 func (x SocketConfig_TCPFastOpenState) String() string {
 	return proto.EnumName(SocketConfig_TCPFastOpenState_name, int32(x))
 }
+
 func (SocketConfig_TCPFastOpenState) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_config_d7068fe3707ce485, []int{3, 0}
+	return fileDescriptor_91dbc815c3d97a05, []int{3, 0}
 }
 
 type TransportConfig struct {
@@ -97,7 +101,7 @@ func (m *TransportConfig) Reset()         { *m = TransportConfig{} }
 func (m *TransportConfig) String() string { return proto.CompactTextString(m) }
 func (*TransportConfig) ProtoMessage()    {}
 func (*TransportConfig) Descriptor() ([]byte, []int) {
-	return fileDescriptor_config_d7068fe3707ce485, []int{0}
+	return fileDescriptor_91dbc815c3d97a05, []int{0}
 }
 func (m *TransportConfig) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_TransportConfig.Unmarshal(m, b)
@@ -105,8 +109,8 @@ func (m *TransportConfig) XXX_Unmarshal(b []byte) error {
 func (m *TransportConfig) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
 	return xxx_messageInfo_TransportConfig.Marshal(b, m, deterministic)
 }
-func (dst *TransportConfig) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_TransportConfig.Merge(dst, src)
+func (m *TransportConfig) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_TransportConfig.Merge(m, src)
 }
 func (m *TransportConfig) XXX_Size() int {
 	return xxx_messageInfo_TransportConfig.Size(m)
@@ -158,7 +162,7 @@ func (m *StreamConfig) Reset()         { *m = StreamConfig{} }
 func (m *StreamConfig) String() string { return proto.CompactTextString(m) }
 func (*StreamConfig) ProtoMessage()    {}
 func (*StreamConfig) Descriptor() ([]byte, []int) {
-	return fileDescriptor_config_d7068fe3707ce485, []int{1}
+	return fileDescriptor_91dbc815c3d97a05, []int{1}
 }
 func (m *StreamConfig) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_StreamConfig.Unmarshal(m, b)
@@ -166,8 +170,8 @@ func (m *StreamConfig) XXX_Unmarshal(b []byte) error {
 func (m *StreamConfig) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
 	return xxx_messageInfo_StreamConfig.Marshal(b, m, deterministic)
 }
-func (dst *StreamConfig) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_StreamConfig.Merge(dst, src)
+func (m *StreamConfig) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_StreamConfig.Merge(m, src)
 }
 func (m *StreamConfig) XXX_Size() int {
 	return xxx_messageInfo_StreamConfig.Size(m)
@@ -232,7 +236,7 @@ func (m *ProxyConfig) Reset()         { *m = ProxyConfig{} }
 func (m *ProxyConfig) String() string { return proto.CompactTextString(m) }
 func (*ProxyConfig) ProtoMessage()    {}
 func (*ProxyConfig) Descriptor() ([]byte, []int) {
-	return fileDescriptor_config_d7068fe3707ce485, []int{2}
+	return fileDescriptor_91dbc815c3d97a05, []int{2}
 }
 func (m *ProxyConfig) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_ProxyConfig.Unmarshal(m, b)
@@ -240,8 +244,8 @@ func (m *ProxyConfig) XXX_Unmarshal(b []byte) error {
 func (m *ProxyConfig) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
 	return xxx_messageInfo_ProxyConfig.Marshal(b, m, deterministic)
 }
-func (dst *ProxyConfig) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_ProxyConfig.Merge(dst, src)
+func (m *ProxyConfig) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_ProxyConfig.Merge(m, src)
 }
 func (m *ProxyConfig) XXX_Size() int {
 	return xxx_messageInfo_ProxyConfig.Size(m)
@@ -264,17 +268,19 @@ type SocketConfig struct {
 	// Mark of the connection. If non-zero, the value will be set to SO_MARK.
 	Mark int32 `protobuf:"varint,1,opt,name=mark,proto3" json:"mark,omitempty"`
 	// TFO is the state of TFO settings.
-	Tfo                  SocketConfig_TCPFastOpenState `protobuf:"varint,2,opt,name=tfo,proto3,enum=v2ray.core.transport.internet.SocketConfig_TCPFastOpenState" json:"tfo,omitempty"`
-	XXX_NoUnkeyedLiteral struct{}                      `json:"-"`
-	XXX_unrecognized     []byte                        `json:"-"`
-	XXX_sizecache        int32                         `json:"-"`
+	Tfo SocketConfig_TCPFastOpenState `protobuf:"varint,2,opt,name=tfo,proto3,enum=v2ray.core.transport.internet.SocketConfig_TCPFastOpenState" json:"tfo,omitempty"`
+	// TProxy is for enabling TProxy socket option.
+	Tproxy               bool     `protobuf:"varint,3,opt,name=tproxy,proto3" json:"tproxy,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
 }
 
 func (m *SocketConfig) Reset()         { *m = SocketConfig{} }
 func (m *SocketConfig) String() string { return proto.CompactTextString(m) }
 func (*SocketConfig) ProtoMessage()    {}
 func (*SocketConfig) Descriptor() ([]byte, []int) {
-	return fileDescriptor_config_d7068fe3707ce485, []int{3}
+	return fileDescriptor_91dbc815c3d97a05, []int{3}
 }
 func (m *SocketConfig) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_SocketConfig.Unmarshal(m, b)
@@ -282,8 +288,8 @@ func (m *SocketConfig) XXX_Unmarshal(b []byte) error {
 func (m *SocketConfig) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
 	return xxx_messageInfo_SocketConfig.Marshal(b, m, deterministic)
 }
-func (dst *SocketConfig) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_SocketConfig.Merge(dst, src)
+func (m *SocketConfig) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_SocketConfig.Merge(m, src)
 }
 func (m *SocketConfig) XXX_Size() int {
 	return xxx_messageInfo_SocketConfig.Size(m)
@@ -308,6 +314,13 @@ func (m *SocketConfig) GetTfo() SocketConfig_TCPFastOpenState {
 	return SocketConfig_AsIs
 }
 
+func (m *SocketConfig) GetTproxy() bool {
+	if m != nil {
+		return m.Tproxy
+	}
+	return false
+}
+
 func init() {
 	proto.RegisterType((*TransportConfig)(nil), "v2ray.core.transport.internet.TransportConfig")
 	proto.RegisterType((*StreamConfig)(nil), "v2ray.core.transport.internet.StreamConfig")
@@ -318,42 +331,43 @@ func init() {
 }
 
 func init() {
-	proto.RegisterFile("v2ray.com/core/transport/internet/config.proto", fileDescriptor_config_d7068fe3707ce485)
-}
-
-var fileDescriptor_config_d7068fe3707ce485 = []byte{
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-	0xe5, 0xd8, 0x85, 0x04, 0x00, 0x00,
+	proto.RegisterFile("v2ray.com/core/transport/internet/config.proto", fileDescriptor_91dbc815c3d97a05)
+}
+
+var fileDescriptor_91dbc815c3d97a05 = []byte{
+	// 533 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xa4, 0x92, 0xd1, 0x6b, 0x13, 0x4f,
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+	0xfd, 0x9d, 0x04, 0x00, 0x00,
 }

transport/internet/config.proto

@@ -67,4 +67,7 @@ message SocketConfig {
 
   // TFO is the state of TFO settings.
   TCPFastOpenState tfo = 2;
+
+  // TProxy is for enabling TProxy socket option.
+  bool tproxy = 3;
 }

transport/internet/sockopt_linux.go

@@ -14,7 +14,7 @@ const (
 func applyOutboundSocketOptions(network string, address string, fd uintptr, config *SocketConfig) error {
 	if config.Mark != 0 {
 		if err := syscall.SetsockoptInt(int(fd), syscall.SOL_SOCKET, syscall.SO_MARK, int(config.Mark)); err != nil {
-			return err
+			return newError("failed to set SO_MARK").Base(err)
 		}
 	}
 
@@ -22,15 +22,21 @@ func applyOutboundSocketOptions(network string, address string, fd uintptr, conf
 		switch config.Tfo {
 		case SocketConfig_Enable:
 			if err := syscall.SetsockoptInt(int(fd), syscall.SOL_TCP, TCP_FASTOPEN_CONNECT, 1); err != nil {
-				return err
+				return newError("failed to set TCP_FASTOPEN_CONNECT=1").Base(err)
 			}
 		case SocketConfig_Disable:
 			if err := syscall.SetsockoptInt(int(fd), syscall.SOL_TCP, TCP_FASTOPEN_CONNECT, 0); err != nil {
-				return err
+				return newError("failed to set TCP_FASTOPEN_CONNECT=0").Base(err)
 			}
 		}
 	}
 
+	if config.Tproxy {
+		if err := syscall.SetsockoptInt(int(fd), syscall.SOL_IP, syscall.IP_TRANSPARENT, 1); err != nil {
+			return newError("failed to set IP_TRANSPARENT").Base(err)
+		}
+	}
+
 	return nil
 }
 
@@ -39,14 +45,20 @@ func applyInboundSocketOptions(network string, fd uintptr, config *SocketConfig)
 		switch config.Tfo {
 		case SocketConfig_Enable:
 			if err := syscall.SetsockoptInt(int(fd), syscall.SOL_TCP, TCP_FASTOPEN, 1); err != nil {
-				return err
+				return newError("failed to set TCP_FASTOPEN=1").Base(err)
 			}
 		case SocketConfig_Disable:
 			if err := syscall.SetsockoptInt(int(fd), syscall.SOL_TCP, TCP_FASTOPEN, 0); err != nil {
-				return err
+				return newError("failed to set TCP_FASTOPEN=0").Base(err)
 			}
 		}
 	}
 
+	if config.Tproxy {
+		if err := syscall.SetsockoptInt(int(fd), syscall.SOL_IP, syscall.IP_TRANSPARENT, 1); err != nil {
+			return newError("failed to set IP_TRANSPARENT").Base(err)
+		}
+	}
+
 	return nil
 }