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Add `tcpWindowClamp` to `sockopt` (#1757)

Co-authored-by: RPRX <63339210+RPRX@users.noreply.github.com>
pull/1765/head
xqzr 2 years ago committed by GitHub
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commit
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  1. 2
      infra/conf/transport_internet.go
  2. 54
      transport/internet/config.pb.go
  3. 2
      transport/internet/config.proto
  4. 12
      transport/internet/sockopt_linux.go

2
infra/conf/transport_internet.go

@ -616,6 +616,7 @@ type SocketConfig struct {
TCPKeepAliveInterval int32 `json:"tcpKeepAliveInterval"`
TCPKeepAliveIdle int32 `json:"tcpKeepAliveIdle"`
TCPCongestion string `json:"tcpCongestion"`
TCPWindowClamp int32 `json:"tcpWindowClamp"`
V6only bool `json:"v6only"`
Interface string `json:"interface"`
}
@ -667,6 +668,7 @@ func (c *SocketConfig) Build() (*internet.SocketConfig, error) {
TcpKeepAliveInterval: c.TCPKeepAliveInterval,
TcpKeepAliveIdle: c.TCPKeepAliveIdle,
TcpCongestion: c.TCPCongestion,
TcpWindowClamp: c.TCPWindowClamp,
V6Only: c.V6only,
Interface: c.Interface,
}, nil

54
transport/internet/config.pb.go

@ -427,6 +427,7 @@ type SocketConfig struct {
TcpCongestion string `protobuf:"bytes,12,opt,name=tcp_congestion,json=tcpCongestion,proto3" json:"tcp_congestion,omitempty"`
Interface string `protobuf:"bytes,13,opt,name=interface,proto3" json:"interface,omitempty"`
V6Only bool `protobuf:"varint,14,opt,name=v6only,proto3" json:"v6only,omitempty"`
TcpWindowClamp int32 `protobuf:"varint,15,opt,name=tcp_window_clamp,json=tcpWindowClamp,proto3" json:"tcp_window_clamp,omitempty"`
}
func (x *SocketConfig) Reset() {
@ -559,6 +560,13 @@ func (x *SocketConfig) GetV6Only() bool {
return false
}
func (x *SocketConfig) GetTcpWindowClamp() int32 {
if x != nil {
return x.TcpWindowClamp
}
return 0
}
var File_transport_internet_config_proto protoreflect.FileDescriptor
var file_transport_internet_config_proto_rawDesc = []byte{
@ -611,7 +619,7 @@ var file_transport_internet_config_proto_rawDesc = []byte{
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@ -650,27 +658,29 @@ var file_transport_internet_config_proto_rawDesc = []byte{
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}
var (

2
transport/internet/config.proto

@ -102,4 +102,6 @@ message SocketConfig {
string interface = 13;
bool v6only = 14;
int32 tcp_window_clamp = 15;
}

12
transport/internet/sockopt_linux.go

@ -89,6 +89,12 @@ func applyOutboundSocketOptions(network string, address string, fd uintptr, conf
return newError("failed to set TCP_CONGESTION", err)
}
}
if config.TcpWindowClamp > 0 {
if err := syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, syscall.TCP_WINDOW_CLAMP, int(config.TcpWindowClamp)); err != nil {
return newError("failed to set TCP_WINDOW_CLAMP", err)
}
}
}
if config.Tproxy.IsEnabled() {
@ -139,6 +145,12 @@ func applyInboundSocketOptions(network string, fd uintptr, config *SocketConfig)
return newError("failed to set TCP_CONGESTION", err)
}
}
if config.TcpWindowClamp > 0 {
if err := syscall.SetsockoptInt(int(fd), syscall.IPPROTO_TCP, syscall.TCP_WINDOW_CLAMP, int(config.TcpWindowClamp)); err != nil {
return newError("failed to set TCP_WINDOW_CLAMP", err)
}
}
}
if config.Tproxy.IsEnabled() {

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