Re: [PATCH/v5] bpf: add bpf_skb_adjust_room flag BPF_F_ADJ_ROOM_ENCAP_L2_ETH

From: Willem de Bruijn
Date: Thu Mar 04 2021 - 08:57:55 EST


On Thu, Mar 4, 2021 at 1:41 AM Xuesen Huang <hxseverything@xxxxxxxxx> wrote:
>
> From: Xuesen Huang <huangxuesen@xxxxxxxxxxxx>
>
> bpf_skb_adjust_room sets the inner_protocol as skb->protocol for packets
> encapsulation. But that is not appropriate when pushing Ethernet header.
>
> Add an option to further specify encap L2 type and set the inner_protocol
> as ETH_P_TEB.
>
> Suggested-by: Willem de Bruijn <willemb@xxxxxxxxxx>
> Signed-off-by: Xuesen Huang <huangxuesen@xxxxxxxxxxxx>
> Signed-off-by: Zhiyong Cheng <chengzhiyong@xxxxxxxxxxxx>
> Signed-off-by: Li Wang <wangli09@xxxxxxxxxxxx>

Acked-by: Willem de Bruijn <willemb@xxxxxxxxxx>