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Added tcp fragmentation for freedom outbound (#2021)

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* 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
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GPG key ID: 4AEE18F83AFDEB23
10 changed files with 392 additions and 71 deletions
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56
transport/internet/config.pb.go
View file

@ -1,7 +1,7 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.28.1
// protoc v4.22.0
// protoc v3.12.4
// source: transport/internet/config.proto
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"`
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"`
TcpNoDelay bool `protobuf:"varint,18,opt,name=tcp_no_delay,json=tcpNoDelay,proto3" json:"tcp_no_delay,omitempty"`
}
func (x *SocketConfig) Reset() {
@ -583,6 +584,13 @@ func (x *SocketConfig) GetTcpMaxSeg() int32 {
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_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 (

2
transport/internet/config.proto
View file

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

6
transport/internet/sockopt_darwin.go
View file

@ -126,6 +126,12 @@ func applyOutboundSocketOptions(network string, address string, fd uintptr, conf
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

6
transport/internet/sockopt_linux.go
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() {

5
transport/internet/sockopt_windows.go
View file

@ -34,6 +34,11 @@ func applyOutboundSocketOptions(network string, address string, fd uintptr, conf
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