mirror of
https://github.com/v2fly/v2ray-core.git
synced 2024-12-22 10:08:15 -05:00
142 lines
4.7 KiB
Go
142 lines
4.7 KiB
Go
package internet
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import (
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"net"
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"golang.org/x/sys/unix"
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)
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const (
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// TCP_FASTOPEN_SERVER is the value to enable TCP fast open on darwin for server connections.
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TCP_FASTOPEN_SERVER = 0x01 // nolint: revive,stylecheck
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// TCP_FASTOPEN_CLIENT is the value to enable TCP fast open on darwin for client connections.
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TCP_FASTOPEN_CLIENT = 0x02 // nolint: revive,stylecheck
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)
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func applyOutboundSocketOptions(network string, address string, fd uintptr, config *SocketConfig) error {
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if isTCPSocket(network) {
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switch config.Tfo {
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case SocketConfig_Enable:
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if err := unix.SetsockoptInt(int(fd), unix.IPPROTO_TCP, unix.TCP_FASTOPEN, TCP_FASTOPEN_CLIENT); err != nil {
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return err
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}
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case SocketConfig_Disable:
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if err := unix.SetsockoptInt(int(fd), unix.IPPROTO_TCP, unix.TCP_FASTOPEN, 0); err != nil {
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return err
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}
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}
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if config.TcpKeepAliveInterval > 0 {
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if err := unix.SetsockoptInt(int(fd), unix.IPPROTO_TCP, unix.TCP_KEEPINTVL, int(config.TcpKeepAliveInterval)); err != nil {
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return newError("failed to set TCP_KEEPINTVL").Base(err)
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}
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}
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if config.TcpKeepAliveIdle > 0 {
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if err := unix.SetsockoptInt(int(fd), unix.IPPROTO_TCP, unix.TCP_KEEPALIVE, int(config.TcpKeepAliveIdle)); err != nil {
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return newError("failed to set TCP_KEEPALIVE (TCP keepalive idle time on Darwin)").Base(err)
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}
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}
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if config.TcpKeepAliveInterval > 0 || config.TcpKeepAliveIdle > 0 {
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if err := unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_KEEPALIVE, 1); err != nil {
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return newError("failed to set SO_KEEPALIVE").Base(err)
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}
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}
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}
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if config.BindToDevice != "" {
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iface, err := net.InterfaceByName(config.BindToDevice)
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if err != nil {
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return newError("failed to get interface ", config.BindToDevice).Base(err)
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}
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if err := unix.SetsockoptInt(int(fd), unix.IPPROTO_IP, unix.IP_BOUND_IF, iface.Index); err != nil {
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return newError("failed to set IP_BOUND_IF", err)
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}
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if err := unix.SetsockoptInt(int(fd), unix.IPPROTO_IPV6, unix.IPV6_BOUND_IF, iface.Index); err != nil {
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return newError("failed to set IPV6_BOUND_IF", err)
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}
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}
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if config.TxBufSize != 0 {
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if err := unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_SNDBUF, int(config.TxBufSize)); err != nil {
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return newError("failed to set SO_SNDBUF").Base(err)
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}
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}
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if config.RxBufSize != 0 {
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if err := unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_RCVBUF, int(config.RxBufSize)); err != nil {
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return newError("failed to set SO_RCVBUF").Base(err)
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}
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}
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return nil
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}
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func applyInboundSocketOptions(network string, fd uintptr, config *SocketConfig) error {
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if isTCPSocket(network) {
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switch config.Tfo {
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case SocketConfig_Enable:
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if err := unix.SetsockoptInt(int(fd), unix.IPPROTO_TCP, unix.TCP_FASTOPEN, TCP_FASTOPEN_SERVER); err != nil {
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return err
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}
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case SocketConfig_Disable:
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if err := unix.SetsockoptInt(int(fd), unix.IPPROTO_TCP, unix.TCP_FASTOPEN, 0); err != nil {
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return err
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}
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}
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if config.TcpKeepAliveInterval > 0 {
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if err := unix.SetsockoptInt(int(fd), unix.IPPROTO_TCP, unix.TCP_KEEPINTVL, int(config.TcpKeepAliveInterval)); err != nil {
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return newError("failed to set TCP_KEEPINTVL").Base(err)
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}
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}
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if config.TcpKeepAliveIdle > 0 {
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if err := unix.SetsockoptInt(int(fd), unix.IPPROTO_TCP, unix.TCP_KEEPALIVE, int(config.TcpKeepAliveIdle)); err != nil {
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return newError("failed to set TCP_KEEPALIVE (TCP keepalive idle time on Darwin)").Base(err)
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}
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}
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if config.TcpKeepAliveInterval > 0 || config.TcpKeepAliveIdle > 0 {
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if err := unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_KEEPALIVE, 1); err != nil {
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return newError("failed to set SO_KEEPALIVE").Base(err)
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}
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}
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}
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if config.BindToDevice != "" {
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iface, err := net.InterfaceByName(config.BindToDevice)
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if err != nil {
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return newError("failed to get interface ", config.BindToDevice).Base(err)
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}
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if err := unix.SetsockoptInt(int(fd), unix.IPPROTO_IP, unix.IP_BOUND_IF, iface.Index); err != nil {
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return newError("failed to set IP_BOUND_IF", err)
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}
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if err := unix.SetsockoptInt(int(fd), unix.IPPROTO_IPV6, unix.IPV6_BOUND_IF, iface.Index); err != nil {
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return newError("failed to set IPV6_BOUND_IF", err)
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}
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}
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if config.TxBufSize != 0 {
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if err := unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_SNDBUF, int(config.TxBufSize)); err != nil {
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return newError("failed to set SO_SNDBUF/SO_SNDBUFFORCE").Base(err)
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}
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}
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if config.RxBufSize != 0 {
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if err := unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_RCVBUF, int(config.RxBufSize)); err != nil {
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return newError("failed to set SO_RCVBUF/SO_RCVBUFFORCE").Base(err)
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}
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}
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return nil
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}
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func bindAddr(fd uintptr, address []byte, port uint32) error {
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return nil
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}
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func setReuseAddr(fd uintptr) error {
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return nil
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}
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func setReusePort(fd uintptr) error {
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return nil
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}
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