From: "Jason A. Donenfeld" <Jason@xxxxxxxxx> Date: Thu, 20 Aug 2020 11:13:49 +0200 > It seems like if an eBPF program pushes on a VLAN tag or changes the > protocol or does any other modification, it will be treated in exactly > the same way as the L2 packet above by the remaining parts of the > networking stack. What will update the skb metadata if the XDP program changes the wireguard header(s)?