Sockopt: Add dialTimeout

infra/conf/transport_internet.go

@@ -716,6 +716,7 @@ type SocketConfig struct {
 	TcpMptcp             bool                   `json:"tcpMptcp"`
 	CustomSockopt        []*CustomSockoptConfig `json:"customSockopt"`
 	AddressPortStrategy  string                 `json:"addressPortStrategy"`
+	DialTimeout          int32                  `json:"dialTimeout"`
 }
 
 // Build implements Buildable.
@@ -824,6 +825,7 @@ func (c *SocketConfig) Build() (*internet.SocketConfig, error) {
 		TcpMptcp:             c.TcpMptcp,
 		CustomSockopt:        customSockopts,
 		AddressPortStrategy:  addressPortStrategy,
+		DialTimeout:          c.DialTimeout,
 	}, nil
 }
 

transport/internet/config.pb.go

@@ -513,6 +513,7 @@ type SocketConfig struct {
 	TcpMptcp                   bool                `protobuf:"varint,19,opt,name=tcp_mptcp,json=tcpMptcp,proto3" json:"tcp_mptcp,omitempty"`
 	CustomSockopt              []*CustomSockopt    `protobuf:"bytes,20,rep,name=customSockopt,proto3" json:"customSockopt,omitempty"`
 	AddressPortStrategy        AddressPortStrategy `protobuf:"varint,21,opt,name=address_port_strategy,json=addressPortStrategy,proto3,enum=xray.transport.internet.AddressPortStrategy" json:"address_port_strategy,omitempty"`
+	DialTimeout                int32               `protobuf:"varint,22,opt,name=dial_timeout,json=dialTimeout,proto3" json:"dial_timeout,omitempty"`
 }
 
 func (x *SocketConfig) Reset() {
@@ -692,6 +693,13 @@ func (x *SocketConfig) GetAddressPortStrategy() AddressPortStrategy {
 	return AddressPortStrategy_None
 }
 
+func (x *SocketConfig) GetDialTimeout() int32 {
+	if x != nil {
+		return x.DialTimeout
+	}
+	return 0
+}
+
 var File_transport_internet_config_proto protoreflect.FileDescriptor
 
 var file_transport_internet_config_proto_rawDesc = []byte{
@@ -747,7 +755,7 @@ var file_transport_internet_config_proto_rawDesc = []byte{
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@@ -808,37 +816,39 @@ var file_transport_internet_config_proto_rawDesc = []byte{
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 var (

transport/internet/config.proto

@@ -128,4 +128,6 @@ message SocketConfig {
   repeated CustomSockopt customSockopt = 20;
 
   AddressPortStrategy address_port_strategy = 21;
+
+  int32 dial_timeout = 22;
 }

transport/internet/system_dialer.go

@@ -87,8 +87,12 @@ func (d *DefaultSystemDialer) Dial(ctx context.Context, src net.Address, dest ne
 	if sockopt != nil && (sockopt.TcpKeepAliveInterval != 0 || sockopt.TcpKeepAliveIdle != 0) {
 		goStdKeepAlive = time.Duration(-1)
 	}
+	dialTimeout := time.Second * 16
+	if sockopt != nil && sockopt.DialTimeout > 0 {
+		dialTimeout = time.Second * time.Duration(sockopt.DialTimeout)
+	}
 	dialer := &net.Dialer{
-		Timeout:   time.Second * 16,
+		Timeout:   dialTimeout,
 		LocalAddr: resolveSrcAddr(dest.Network, src),
 		KeepAlive: goStdKeepAlive,
 	}