How I can enable IP_TRANSPARENT socket option for listener socket?

[alishir]

Hi all,

I want to implement simple transparent proxy. According to the kernel documentation I should enable IP_TRANSPARENT option for listener socket. How I can enable this option?

[Darksonn]

You can use the setsockopt method in the nix crate for this.

use nix::sys::socket::setsockopt;
use nix::sys::socket::sockopt::IpTransparent;
use std::os::unix::io::AsRawFd;

let listener = ...;
let fd = listener.as_raw_fd();
let res = setsockopt(fd, IpTransparent, &true);

[alishir]

Thanks a lot.