Re: gutd — WireGuard traffic obfuscator via TC/XDP eBPF (no kernel patches)

> Would appreciate any feedback - especially on the BPF approach,

Cool project! A couple of comments on the BPF side:

- It looks like you're using libbpf_rs to load the BPF programs. Have
  you considered using the (pure rust) Aya library instead
  (https://github.com/aya-rs/aya)? If so, what was the reason for
  choosing the libbpf wrapper instead?

- From a quick look at the architecture doc, I don't understand why you
  need the veth pair? You're just rewriting packet contents, this could
  just as well be done in the TC hook (egress and ingress) of the
  physical NIC, and from the wireguard PoV it would just look like wg
  itself is speaking directly to the other tunnel peer?

-Toke