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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 198EAC433F5 for ; Wed, 6 Oct 2021 23:07:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0461961077 for ; Wed, 6 Oct 2021 23:07:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239827AbhJFXJa (ORCPT ); Wed, 6 Oct 2021 19:09:30 -0400 Received: from mx0b-00082601.pphosted.com ([67.231.153.30]:7918 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S239819AbhJFXJa (ORCPT ); Wed, 6 Oct 2021 19:09:30 -0400 Received: from pps.filterd (m0001303.ppops.net [127.0.0.1]) by m0001303.ppops.net (8.16.1.2/8.16.1.2) with SMTP id 196M41er029025 for ; Wed, 6 Oct 2021 16:07:37 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding : content-type; s=facebook; bh=Sq++9epHfNki2YlM/FDYGutKsr7B4g/e0cHdfCt/TRM=; b=proidZYKXE4u2metGqh/1em/Hi3Zh6PcyeK+YMt8uwdV+YZUB/Gf4Uo/ABt1iZcDp4K7 9RYosoz+UpillJQja+YTPmaCzLwpzn3iPhZDlySTmEZhpsH5sqFHMw4e6UF1O6iIgsOn ktwk24Z5ffBVr10P3lWV0lzxvm8MmEs1BY0= Received: from maileast.thefacebook.com ([163.114.130.16]) by m0001303.ppops.net with ESMTP id 3bhfn52qq9-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Wed, 06 Oct 2021 16:07:36 -0700 Received: from intmgw001.25.frc3.facebook.com (2620:10d:c0a8:1b::d) by mail.thefacebook.com (2620:10d:c0a8:83::7) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.14; Wed, 6 Oct 2021 16:07:36 -0700 Received: by devbig612.frc2.facebook.com (Postfix, from userid 115148) id 6426B3457DAD; Wed, 6 Oct 2021 16:07:28 -0700 (PDT) From: Joanne Koong To: CC: , , , Joanne Koong Subject: [PATCH bpf-next v2 0/3] Add XDP support for bpf_load_hdr_opt Date: Wed, 6 Oct 2021 16:05:40 -0700 Message-ID: <20211006230543.3928580-1-joannekoong@fb.com> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-FB-Internal: Safe Content-Type: text/plain X-FB-Source: Intern X-Proofpoint-GUID: ZwpQY22gqR9YxXDswQZGdj8q4mAC-qmB X-Proofpoint-ORIG-GUID: ZwpQY22gqR9YxXDswQZGdj8q4mAC-qmB X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.182.1,Aquarius:18.0.790,Hydra:6.0.391,FMLib:17.0.607.475 definitions=2021-10-06_04,2021-10-06_01,2020-04-07_01 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=1 lowpriorityscore=0 spamscore=1 phishscore=0 adultscore=0 mlxscore=1 suspectscore=0 bulkscore=0 clxscore=1015 mlxlogscore=227 priorityscore=1501 malwarescore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2109230001 definitions=main-2110060142 X-FB-Internal: deliver Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org Currently, bpf_sockops programs have been using bpf_load_hdr_opt() to parse the tcp header option. It will be useful to allow other bpf prog types to have a similar way of handling tcp hdr options. This series adds XDP support for bpf_load_hdr_opt(). At a high level, these patches are: 1/3 patch - Add functionality for xdp bpf_load_hdr_opt in net/core. 2/3 patch - Rename existing test_tcp_hdr_options to test_sockops_tcp_hdr_= options. 3/3 patch - Add tests for xdp bpf_load_hdr_opt (test_xdp_tcp_hdr_options)= . v1 -> v2: * 1/3 - Change "(flags & 0xffffffffffff)" to (flags & ((1ULL << BPF_LOAD_HDR_OPT_TCP_OFFSET_SHIFT) - 1)) * 3/3 - Skip check_opt_out on failures * 3/3 - Change CHECKs to ASSERTs Joanne Koong (3): bpf/xdp: Add bpf_load_hdr_opt support for xdp bpf/selftests: Rename test_tcp_hdr_options to test_sockops_tcp_hdr_options bpf/selftests: Add xdp bpf_load_tcp_hdr_options tests include/uapi/linux/bpf.h | 26 ++- net/core/filter.c | 88 ++++++-- tools/include/uapi/linux/bpf.h | 26 ++- ...dr_options.c =3D> sockops_tcp_hdr_options.c} | 18 +- .../bpf/prog_tests/xdp_tcp_hdr_options.c | 144 +++++++++++++ ....c =3D> test_sockops_misc_tcp_hdr_options.c} | 0 ...tions.c =3D> test_sockops_tcp_hdr_options.c} | 0 .../bpf/progs/test_xdp_tcp_hdr_options.c | 198 ++++++++++++++++++ 8 files changed, 454 insertions(+), 46 deletions(-) rename tools/testing/selftests/bpf/prog_tests/{tcp_hdr_options.c =3D> so= ckops_tcp_hdr_options.c} (96%) create mode 100644 tools/testing/selftests/bpf/prog_tests/xdp_tcp_hdr_op= tions.c rename tools/testing/selftests/bpf/progs/{test_misc_tcp_hdr_options.c =3D= > test_sockops_misc_tcp_hdr_options.c} (100%) rename tools/testing/selftests/bpf/progs/{test_tcp_hdr_options.c =3D> te= st_sockops_tcp_hdr_options.c} (100%) create mode 100644 tools/testing/selftests/bpf/progs/test_xdp_tcp_hdr_op= tions.c --=20 2.30.2