From mboxrd@z Thu Jan 1 00:00:00 1970 From: John Fastabend Subject: [PATCH bpf-next 0/3] bpf: add sk_msg helper sk_msg_pop_data Date: Thu, 22 Nov 2018 17:38:47 -0800 Message-ID: <1542937130-4860-1-git-send-email-john.fastabend@gmail.com> Cc: john.fastabend@gmail.com, netdev@vger.kernel.org To: ast@kernel.org, daniel@iogearbox.net Return-path: Received: from mail-io1-f67.google.com ([209.85.166.67]:39697 "EHLO mail-io1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1733028AbeKWMVK (ORCPT ); Fri, 23 Nov 2018 07:21:10 -0500 Received: by mail-io1-f67.google.com with SMTP id j18-v6so7719032iog.6 for ; Thu, 22 Nov 2018 17:39:03 -0800 (PST) Sender: netdev-owner@vger.kernel.org List-ID: After being able to add metadata to messages with sk_msg_push_data we have also found it useful to be able to "pop" this metadata off before sending it to applications in some cases. This series adds a new helper sk_msg_pop_data() and the associated patches to add tests and tools/lib support. Thanks! John Fastabend (3): bpf: helper to pop data from messages bpf: add msg_pop_data helper to tools bpf: test_sockmap, add options for msg_pop_data() helper usage include/uapi/linux/bpf.h | 13 +- net/core/filter.c | 169 ++++++++++++++++++++++++ net/ipv4/tcp_bpf.c | 14 +- tools/include/uapi/linux/bpf.h | 13 +- tools/testing/selftests/bpf/bpf_helpers.h | 2 + tools/testing/selftests/bpf/test_sockmap.c | 127 +++++++++++++++++- tools/testing/selftests/bpf/test_sockmap_kern.h | 70 ++++++++-- 7 files changed, 386 insertions(+), 22 deletions(-) -- 2.7.4