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=-6.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 036BBC10DAA for ; Sat, 12 Sep 2020 04:59:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B64C2221E8 for ; Sat, 12 Sep 2020 04:59:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="oWuggsdN" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725805AbgILE7d (ORCPT ); Sat, 12 Sep 2020 00:59:33 -0400 Received: from mx0b-00082601.pphosted.com ([67.231.153.30]:45092 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725848AbgILE7a (ORCPT ); Sat, 12 Sep 2020 00:59:30 -0400 Received: from pps.filterd (m0089730.ppops.net [127.0.0.1]) by m0089730.ppops.net (8.16.0.42/8.16.0.42) with SMTP id 08C4xKkG014809 for ; Fri, 11 Sep 2020 21:59:29 -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=x6FxozHh27/sVb52p3XRqCQC4WI6lR5BG6R/Dw+nvnM=; b=oWuggsdNpoBg89jlOTRYX/BwUQKF/vfPbtNLZ3ivgK4a166haXRCdlNTa488VpFE7DYz RzI6A07bupjKHWKAV02xdWhFuuz1GZD+dDWSZk9HVINEgln5phFFCmKK9beJOmpa0YBU /unQlJQ+pwTEYbaZYqt76rq4hTp1LcHmQU8= Received: from maileast.thefacebook.com ([163.114.130.16]) by m0089730.ppops.net with ESMTP id 33fnr31ud3-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Fri, 11 Sep 2020 21:59:29 -0700 Received: from intmgw003.03.ash8.facebook.com (2620:10d:c0a8:1b::d) by mail.thefacebook.com (2620:10d:c0a8:83::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Fri, 11 Sep 2020 21:59:28 -0700 Received: by devbig005.ftw2.facebook.com (Postfix, from userid 6611) id C47352945F51; Fri, 11 Sep 2020 21:59:17 -0700 (PDT) From: Martin KaFai Lau To: CC: Alexei Starovoitov , Daniel Borkmann , , Lorenz Bauer , Subject: [PATCH RFC bpf-next 0/2] bpf: Enable bpf_skc_to_* sock casting helper to networking prog type Date: Fri, 11 Sep 2020 21:59:17 -0700 Message-ID: <20200912045917.2992578-1-kafai@fb.com> X-Mailer: git-send-email 2.24.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-FB-Internal: Safe Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235,18.0.687 definitions=2020-09-12_01:2020-09-10,2020-09-12 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 phishscore=0 malwarescore=0 impostorscore=0 bulkscore=0 mlxlogscore=408 clxscore=1015 mlxscore=0 adultscore=0 priorityscore=1501 lowpriorityscore=0 suspectscore=1 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2009120049 X-FB-Internal: deliver Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org This set allows networking prog type to directly read fields from the in-kernel socket type, e.g. "struct tcp_sock". Patch 2 has the details on the use case. It is currently under RFC since it needs proper tests and it builds on top of Lorenz's patches:=20 https://lore.kernel.org/bpf/20200910125631.225188-1-lmb@cloudflare.com= / Martin KaFai Lau (2): bpf: Move the PTR_TO_BTF_ID check to check_reg_type() bpf: Enable bpf_skc_to_* sock casting helper to networking prog type kernel/bpf/verifier.c | 85 +++++++++++++++++++++++++++---------------- net/core/filter.c | 69 +++++++++++++++++++++++++---------- 2 files changed, 103 insertions(+), 51 deletions(-) --=20 2.24.1