From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D17C6C2D0B1 for ; Thu, 6 Feb 2020 08:35:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9955920720 for ; Thu, 6 Feb 2020 08:35:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Ui4d2Vyl" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727946AbgBFIfc (ORCPT ); Thu, 6 Feb 2020 03:35:32 -0500 Received: from mail-pf1-f194.google.com ([209.85.210.194]:35182 "EHLO mail-pf1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726365AbgBFIfc (ORCPT ); Thu, 6 Feb 2020 03:35:32 -0500 Received: by mail-pf1-f194.google.com with SMTP id y73so2738613pfg.2; Thu, 06 Feb 2020 00:35:31 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=EjKQV8mnfXuPq6ZNft4LufVyA8xUS7YjJsmHdUEjjxE=; b=Ui4d2VylsSDMa0HmtdmryLKpwY/jMjyqBWP7JHGy9nc4mwo0cw1MlebFGuKl9tHrQD WEJNHswdbN4sSvuBbczVp43LmaFqKgCXw4FzGN6XykdQNU6QwmbIT2qPUflesWq/cfrp Wu60XTiWsY5C+MNhFKtP1S+aBneC06K1jZdCsIoYwW0rboDjFzDU93SElZrNflJT2asm FtNIyXKpVISJAEizSe098Cg73YWMSPSJR1ZAaE7zK4zIYtxPhUPPJfJzmGPU0UHZkb1C N5wvsYiYHFCLTESXADs4Cp37aiosoXyrsov3cvuHGdaPgKDo8e10V+yWeaujX7uL+o5u zykA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=EjKQV8mnfXuPq6ZNft4LufVyA8xUS7YjJsmHdUEjjxE=; b=k0AXehbr5QfR21djz3qFjv4V4/aVbJt0kU//2yXx6uZzeNx2VLoYJ9TqP+l6Vboa8a AOXH6g6mLXb8QtwiVCisYxr6EvSXN+k+iGSuRMhg4Gf3H57wrQXGuypDq7GrvjpfFEaW 0+rlDbgA5IgI9ZQBOZwCrofEb1b5p2mRbl1zkMG5Pb5bu539O37FgRUrO3q6OEte2Ds1 a7L17wVLUKKUs7kpnxEa/CrVsFkdxLkcsOH/CmsHV8pu0dI2YsANdRBmESjNoypUHeD3 ZfVzCZXZJUJj/JGtP0gAI++XeMrWVJR0lKlFumTjA8XT1c75PgfcMyVtQYCqjP6EpNeL ZRrw== X-Gm-Message-State: APjAAAWTXCLg0NhR0XtDF+9vN1D7dfC3p6zpAvQI+VCokuxGTduX4LTF Lb2jsSYVnYpwTx1o9nVXSKOCuh7OQnAJFg== X-Google-Smtp-Source: APXvYqzLcloPNmsd0xMTfBjl4a3B8lfa37HS98GrX0fWyI9AaycYzZK0svad181tB2CoqvOKVw5LPA== X-Received: by 2002:aa7:94a4:: with SMTP id a4mr2556837pfl.178.1580978131269; Thu, 06 Feb 2020 00:35:31 -0800 (PST) Received: from localhost.localdomain ([124.156.165.26]) by smtp.gmail.com with ESMTPSA id 5sm2292070pfx.163.2020.02.06.00.35.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 06 Feb 2020 00:35:30 -0800 (PST) From: Lingpeng Chen To: bpf Cc: Alexei Starovoitov , Daniel Borkmann , John Fastabend , "David S . Miller" , netdev@vger.kernel.org, Lingpeng Chen Subject: [PATCH bpf-next 0/2] bpf: Add sock ops get netns helpers Date: Thu, 6 Feb 2020 16:35:13 +0800 Message-Id: <20200206083515.10334-1-forrest0579@gmail.com> X-Mailer: git-send-email 2.17.1 Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org Currently 5-tuple(sip+dip+sport+dport+proto) can't identify a uniq connection because there may be multi net namespace. For example, there may be a chance that netns a and netns b all listen on 127.0.0.1:8080 and the client with same port 40782 connect to them. Without netns number, sock ops program can't distinguish them. Using bpf_sock_ops_get_netns helpers to get current connection netns number to distinguish connections. Lingpeng Chen (2): bpf: Add sock ops get netns helpers bpf: Sync uapi bpf.h to tools/ include/uapi/linux/bpf.h | 8 +++++++- net/core/filter.c | 18 ++++++++++++++++++ tools/include/uapi/linux/bpf.h | 8 +++++++- 3 files changed, 32 insertions(+), 2 deletions(-) -- 2.17.1