Xray-core/transport/internet/sockopt_darwin.go

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package internet
import (
"golang.org/x/sys/unix"
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)
const (
// TCP_FASTOPEN_SERVER is the value to enable TCP fast open on darwin for server connections.
TCP_FASTOPEN_SERVER = 0x01
// TCP_FASTOPEN_CLIENT is the value to enable TCP fast open on darwin for client connections.
TCP_FASTOPEN_CLIENT = 0x02 // nolint: revive,stylecheck
// syscall.TCP_KEEPINTVL is missing on some darwin architectures.
sysTCP_KEEPINTVL = 0x101 // nolint: revive,stylecheck
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)
func applyOutboundSocketOptions(network string, address string, fd uintptr, config *SocketConfig) error {
if isTCPSocket(network) {
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tfo := config.ParseTFOValue()
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if tfo > 0 {
tfo = TCP_FASTOPEN_CLIENT
}
if tfo >= 0 {
if err := unix.SetsockoptInt(int(fd), unix.IPPROTO_TCP, unix.TCP_FASTOPEN, tfo); err != nil {
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return err
}
}
if config.TcpKeepAliveIdle > 0 || config.TcpKeepAliveInterval > 0 {
if config.TcpKeepAliveIdle > 0 {
if err := unix.SetsockoptInt(int(fd), unix.IPPROTO_TCP, unix.TCP_KEEPALIVE, int(config.TcpKeepAliveInterval)); err != nil {
return newError("failed to set TCP_KEEPINTVL", err)
}
}
if config.TcpKeepAliveInterval > 0 {
if err := unix.SetsockoptInt(int(fd), unix.IPPROTO_TCP, sysTCP_KEEPINTVL, int(config.TcpKeepAliveIdle)); err != nil {
return newError("failed to set TCP_KEEPIDLE", err)
}
}
if err := unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_KEEPALIVE, 1); err != nil {
return newError("failed to set SO_KEEPALIVE", err)
}
} else if config.TcpKeepAliveInterval < 0 || config.TcpKeepAliveIdle < 0 {
if err := unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_KEEPALIVE, 0); err != nil {
return newError("failed to unset SO_KEEPALIVE", err)
}
}
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}
return nil
}
func applyInboundSocketOptions(network string, fd uintptr, config *SocketConfig) error {
if isTCPSocket(network) {
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tfo := config.ParseTFOValue()
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if tfo > 0 {
tfo = TCP_FASTOPEN_SERVER
}
if tfo >= 0 {
if err := unix.SetsockoptInt(int(fd), unix.IPPROTO_TCP, unix.TCP_FASTOPEN, tfo); err != nil {
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return err
}
}
if config.TcpKeepAliveIdle > 0 || config.TcpKeepAliveInterval > 0 {
if config.TcpKeepAliveIdle > 0 {
if err := unix.SetsockoptInt(int(fd), unix.IPPROTO_TCP, unix.TCP_KEEPALIVE, int(config.TcpKeepAliveInterval)); err != nil {
return newError("failed to set TCP_KEEPINTVL", err)
}
}
if config.TcpKeepAliveInterval > 0 {
if err := unix.SetsockoptInt(int(fd), unix.IPPROTO_TCP, sysTCP_KEEPINTVL, int(config.TcpKeepAliveIdle)); err != nil {
return newError("failed to set TCP_KEEPIDLE", err)
}
}
if err := unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_KEEPALIVE, 1); err != nil {
return newError("failed to set SO_KEEPALIVE", err)
}
} else if config.TcpKeepAliveInterval < 0 || config.TcpKeepAliveIdle < 0 {
if err := unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_KEEPALIVE, 0); err != nil {
return newError("failed to unset SO_KEEPALIVE", err)
}
}
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}
return nil
}
func bindAddr(fd uintptr, address []byte, port uint32) error {
return nil
}
func setReuseAddr(fd uintptr) error {
return nil
}
func setReusePort(fd uintptr) error {
return nil
}