netdev - Re: [PATCHv2 bpf-next 5/5] selftests: bpf: add test for sk

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Message-ID: <20200326062514.lc7f6xbg5sg4hhjj@kafai-mbp>
Date:   Wed, 25 Mar 2020 23:25:14 -0700
From:   Martin KaFai Lau <kafai@...com>
To:     Joe Stringer <joe@...d.net.nz>
CC:     Lorenz Bauer <lmb@...udflare.com>, bpf <bpf@...r.kernel.org>,
        Networking <netdev@...r.kernel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Alexei Starovoitov <ast@...nel.org>,
        Eric Dumazet <eric.dumazet@...il.com>
Subject: Re: [PATCHv2 bpf-next 5/5] selftests: bpf: add test for sk_assign

On Wed, Mar 25, 2020 at 01:55:59PM -0700, Joe Stringer wrote:
> On Wed, Mar 25, 2020 at 3:35 AM Lorenz Bauer <lmb@...udflare.com> wrote:
> >
> > On Wed, 25 Mar 2020 at 05:58, Joe Stringer <joe@...d.net.nz> wrote:
> > >
> > > From: Lorenz Bauer <lmb@...udflare.com>
> > >
> > > Attach a tc direct-action classifier to lo in a fresh network
> > > namespace, and rewrite all connection attempts to localhost:4321
> > > to localhost:1234 (for port tests) and connections to unreachable
> > > IPv4/IPv6 IPs to the local socket (for address tests).
> >
> > Can you extend this to cover UDP as well?
> 
> I'm working on a follow-up series for UDP, we need this too.
Other than selftests, what are the changes for UDP in patch 1 - 4?