From patchwork Tue Jan 22 21:23:12 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanislav Fomichev X-Patchwork-Id: 1029539 Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=google.com header.i=@google.com header.b="tlNArvV2"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 43khGx2nfTz9s3q for ; Wed, 23 Jan 2019 08:23:21 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726843AbfAVVXT (ORCPT ); Tue, 22 Jan 2019 16:23:19 -0500 Received: from mail-vs1-f73.google.com ([209.85.217.73]:49942 "EHLO mail-vs1-f73.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726752AbfAVVXT (ORCPT ); Tue, 22 Jan 2019 16:23:19 -0500 Received: by mail-vs1-f73.google.com with SMTP id z189so12275521vsc.16 for ; Tue, 22 Jan 2019 13:23:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:message-id:mime-version:subject:from:to:cc; bh=6UdjMcRaaRhhLKWiGR3gjvVC7wSswTDFLS1mGneGkgI=; b=tlNArvV2fAUEAhZXUVGbj8Ewr/xBa8sn8Xey0X1cUZJiruNllnUbj+mqpk7b+FSZId FqP3qcmCo6yJHkVkT3S4KJihkdReX+hC54GHJZL8kOAOpuDd/8HWaGB2crAXRrU9iP9R 1Lrd4igssyVG1TML2Za0uAlQ5tgpn5l+JpvQa3tle4qZnssZ7Ppnkwt5Rz0M2O+5ZkZa ecCQAIff+HeIAzSLPXxjQ5nD7BfmmiGaYdBIQhUdeyybIN+1zqDLNb3e+63d2Om5kGws FeE60VX4C0VmlDcKMKbYTxPInozdG+6WR8P0mrdkG/kSbATl7bzr1w9cRVOnA3asVE31 yPbw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:message-id:mime-version:subject:from:to:cc; bh=6UdjMcRaaRhhLKWiGR3gjvVC7wSswTDFLS1mGneGkgI=; b=JWV2tx5fQcy/S/45p1Vlo1TiS69J6GNjumxx0xfRaIIV2oeI3AAtFrvjl93ks6BPbc U0/EzgsY7qYlimQ2nEP5yojLgytNHeVt7TOGjOL6dVCZtg38lLx5jVO3bU8gSCM/WlBL Ii7SMOjxlVf+YmjOJcmUHvcOLNByTH2eiNND6gY996AFl4nWIyw9jO36O5R5Wd5yEALx EYOy7zUtUbQD/NFZ/WfNxxaAJ2tYxN8zp8rmAoJnehlYiiU0lQQGYy8efCRgDmWWx7Rh TUfanWLubP4238lDs0WZohGrdAkUzgHSw0xXx5D7RiWa3wurDJJNQ29xtOcVWfm626v0 hlfQ== X-Gm-Message-State: AJcUukfA9iR3IxgS6PlFkwAM+O7/Nt4FjcmA6pf4dMGf0Sjmh+NDpBlR eN73+6aB82of8TI0GzxRbjlJtFde651fDPMlUxpwaqCZCcvanfVibfiDAvTsC/2C2Ym9r4+QuGW zTGniv7j9NjC7IyFNhiWguwTdhXBhNKbmUazIe6O7M6+ngKCCzHnAvQ== X-Google-Smtp-Source: ALg8bN58x0w6PwxthMEmQVbNPnxJlgm28KVkK03CaKaS1amEHx6mizYmBJ4seDTCsTHUf9w9TU/gkRc= X-Received: by 2002:ab0:3246:: with SMTP id r6mr2200922uan.1.1548192198203; Tue, 22 Jan 2019 13:23:18 -0800 (PST) Date: Tue, 22 Jan 2019 13:23:12 -0800 Message-Id: <20190122212315.137291-1-sdf@google.com> Mime-Version: 1.0 X-Mailer: git-send-email 2.20.1.321.g9e740568ce-goog Subject: [PATCH bpf-next 0/3] support flow dissector in BPF_PROG_TEST_RUN From: Stanislav Fomichev To: netdev@vger.kernel.org Cc: davem@davemloft.net, ast@kernel.org, daniel@iogearbox.net, Stanislav Fomichev Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This patch series adds support for testing flow dissector BPF programs by extending already existing BPF_PROG_TEST_RUN. The goal is to have a packet as an input and `struct bpf_flow_key' as an output. That way we can easily test flow dissector programs' behavior. I've also modified existing test_progs.c test to do a simple flow dissector run as well. * first patch introduces new __skb_flow_bpf_dissect to simplify sharing between __skb_flow_bpf_dissect and BPF_PROG_TEST_RUN * second patch adds actual BPF_PROG_TEST_RUN support * third patch adds example usage to the selftests Stanislav Fomichev (3): net/flow_dissector: move bpf case into __skb_flow_bpf_dissect bpf: add BPF_PROG_TEST_RUN support for flow dissector selftests/bpf: add simple BPF_PROG_TEST_RUN examples for flow dissector include/linux/bpf.h | 3 + include/linux/skbuff.h | 5 + net/bpf/test_run.c | 75 ++++++++++++++- net/core/filter.c | 1 + net/core/flow_dissector.c | 92 +++++++++++-------- tools/testing/selftests/bpf/Makefile | 3 + .../selftests/bpf/flow_dissector_load.c | 43 +-------- .../selftests/bpf/flow_dissector_load.h | 55 +++++++++++ tools/testing/selftests/bpf/test_progs.c | 78 +++++++++++++++- 9 files changed, 276 insertions(+), 79 deletions(-) create mode 100644 tools/testing/selftests/bpf/flow_dissector_load.h