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Date: Tue, 2 Mar 2021 16:31:53 +0000 From: Lorenz Bauer <lmb@...udflare.com> To: Cong Wang <xiyou.wangcong@...il.com> Cc: Networking <netdev@...r.kernel.org>, bpf <bpf@...r.kernel.org>, duanxiongchun@...edance.com, wangdongdong.6@...edance.com, jiang.wang@...edance.com, Cong Wang <cong.wang@...edance.com>, John Fastabend <john.fastabend@...il.com>, Daniel Borkmann <daniel@...earbox.net>, Jakub Sitnicki <jakub@...udflare.com> Subject: Re: [Patch bpf-next v2 9/9] selftests/bpf: add a test case for udp sockmap On Tue, 2 Mar 2021 at 02:38, Cong Wang <xiyou.wangcong@...il.com> wrote: > > From: Cong Wang <cong.wang@...edance.com> > > Add a test case to ensure redirection between two UDP sockets work. I basically don't understand how splicing works, but watching from the sidelines makes me think it'd be good to have more thorough tests. tools/testing/selftests/bpf/test_sockmap.c has quite elaborate tests for the TCP part, it'd be nice to get similar tests going for UDP. For example: * sendfile? * sendmmsg * Something Jakub mentioned: what happens when a connected, spliced socket is disconnected via connect(AF_UNSPEC)? Seems like we don't hook sk_prot->disconnect anywhere. -- Lorenz Bauer | Systems Engineer 6th Floor, County Hall/The Riverside Building, SE1 7PB, UK www.cloudflare.com
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