netdev - Re: [PATCH net-next v7 14/16] selftests/net: Add env for container based tests

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Message-ID: <d512fc03-5c16-4af2-9353-4e97c7982171@blackwall.org>
Date: Mon, 19 Jan 2026 16:23:26 +0200
From: Nikolay Aleksandrov <razor@...ckwall.org>
To: Daniel Borkmann <daniel@...earbox.net>, netdev@...r.kernel.org
Cc: bpf@...r.kernel.org, kuba@...nel.org, davem@...emloft.net,
 pabeni@...hat.com, willemb@...gle.com, sdf@...ichev.me,
 john.fastabend@...il.com, martin.lau@...nel.org, jordan@...fe.io,
 maciej.fijalkowski@...el.com, magnus.karlsson@...el.com, dw@...idwei.uk,
 toke@...hat.com, yangzhenze@...edance.com, wangdongdong.6@...edance.com
Subject: Re: [PATCH net-next v7 14/16] selftests/net: Add env for container
 based tests

On 15/01/2026 10:26, Daniel Borkmann wrote:
> From: David Wei <dw@...idwei.uk>
> 
> Add an env NetDrvContEnv for container based selftests. This automates
> the setup of a netns, netkit pair with one inside the netns, and a BPF
> program that forwards skbs from the NETIF host inside the container.
> 
> Currently only netkit is used, but other virtual netdevs e.g. veth can
> be used too.
> 
> Expect netkit container datapath selftests to have a publicly routable
> IP prefix to assign to netkit in a container, such that packets will
> land on eth0. The BPF skb forward program will then forward such packets
> from the host netns to the container netns.
> 
> Signed-off-by: David Wei <dw@...idwei.uk>
> Signed-off-by: Daniel Borkmann <daniel@...earbox.net>
> ---
>   .../testing/selftests/drivers/net/README.rst  |   7 ++
>   .../drivers/net/hw/lib/py/__init__.py         |   7 +-
>   .../selftests/drivers/net/lib/py/__init__.py  |   7 +-
>   .../selftests/drivers/net/lib/py/env.py       | 112 ++++++++++++++++++
>   4 files changed, 127 insertions(+), 6 deletions(-)
> 

Reviewed-by: Nikolay Aleksandrov <razor@...ckwall.org>