package internet import ( "syscall" "v2ray.com/core/common/net" ) const ( TCP_FASTOPEN = 15 ) func setTFO(fd syscall.Handle, settings SocketConfig_TCPFastOpenState) error { switch settings { case SocketConfig_Enable: if err := syscall.SetsockoptInt(fd, syscall.IPPROTO_TCP, TCP_FASTOPEN, 1); err != nil { return err } case SocketConfig_Disable: if err := syscall.SetsockoptInt(fd, syscall.IPPROTO_TCP, TCP_FASTOPEN, 0); err != nil { return err } } return nil } func applyOutboundSocketOptions(network string, address string, fd uintptr, config *SocketConfig) error { if isTCPSocket(network) { if err := setTFO(syscall.Handle(fd), config.Tfo); err != nil { return err } } return nil } func applyInboundSocketOptions(network string, fd uintptr, config *SocketConfig) error { if isTCPSocket(network) { if err := setTFO(syscall.Handle(fd), config.Tfo); err != nil { return err } } return nil } func bindAddr(fd uintptr, address net.Address, port net.Port) error { return nil }