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=-17.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT, USER_IN_DEF_DKIM_WL autolearn=unavailable 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 B18BDC76190 for ; Tue, 23 Jul 2019 10:15:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8A95F223BE for ; Tue, 23 Jul 2019 10:15:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="A6zgmMm9" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388944AbfGWKPw (ORCPT ); Tue, 23 Jul 2019 06:15:52 -0400 Received: from mail-pl1-f202.google.com ([209.85.214.202]:50923 "EHLO mail-pl1-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388924AbfGWKPv (ORCPT ); Tue, 23 Jul 2019 06:15:51 -0400 Received: by mail-pl1-f202.google.com with SMTP id d6so21674066pls.17 for ; Tue, 23 Jul 2019 03:15:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=h7dsUuY4XgkJrRpU//tPdbDW3VQMrwX3cEPK49aoW3k=; b=A6zgmMm9WbUycg22ml8plJHz5SO7tE5NzLs68G+UB7ZBg8EEC6XfiQ8P8xB9wnOYVm RlpA7V9i8lJv+cLpVgCe4fC/h1Q/gr50/RTnLWyfs7a872TsHqE4JXFpSy/iem7u2O76 utYfJjJbXuFbYB45hgszstotN3ptHtRIhHd7vDy63kqb7FTk3bFUU5Vy9fpHGWdGq22l /AeySlzvSSBd0AR9D+8zidJK4Lsr4lADoYNKZ5VRxq9Y6K1GYNB/n8sxkHQOJZQ3sMif em6H1Ia98Uv/5RjfZcreyhdDwLv+bO1a8MVG593Di2QXNdV1n1PMoevvdLP9ExhiY3Vg jDVg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=h7dsUuY4XgkJrRpU//tPdbDW3VQMrwX3cEPK49aoW3k=; b=dDFjg3c9GW8MonhgY3Wjk+mxV6dg87+rJfFo1txR4iQtzrIVkNMVlKWtZ1lV3Hb7lI ys3dzEOl/zPK9ZfhCcOOL1ENJ2PL0gY6CxetPYmXZCb6Rvfe3eDp0zyybwAUu8MNKhpz aFQdtUqUXIZD7FJdzK5tRFVHWcPRZJRSoEebgaFbUMQiU6R3xfquOMrr2H6oGKhgnQ6f yLh8csw6YQGxWEFSoBWPlMI8E8+FwhGWZGB0YaoJpxQ2nUZy/DrOQldkPbexE3EJtyE8 FqYTa0bKVUHRfRBQ+8NUaCaBFneNGtPHhCfWaLIX2g3dCYY/4K+qbEM7SixRPUysDHUL 7Yvg== X-Gm-Message-State: APjAAAWYod5gC4HCVdkpMYiLFgldO0gemiMijes0KjBMDUNhOAt88VV/ g3RE2D8EBF5sHWsPP29LKYsXSOczhJy5iQ== X-Google-Smtp-Source: APXvYqwvjeWio7ylwSxyvRjLzjXom8IC9uRyVyoj/Wm7PsJSHz4Kg6ZGjXpcFwuZrM+qkvTQWaIV8V4sbongvA== X-Received: by 2002:a63:b555:: with SMTP id u21mr77094873pgo.222.1563876950294; Tue, 23 Jul 2019 03:15:50 -0700 (PDT) Date: Tue, 23 Jul 2019 03:15:38 -0700 In-Reply-To: <20190723101538.136328-1-edumazet@google.com> Message-Id: <20190723101538.136328-3-edumazet@google.com> Mime-Version: 1.0 References: <20190723101538.136328-1-edumazet@google.com> X-Mailer: git-send-email 2.22.0.657.g960e92d24f-goog Subject: [PATCH bpf 2/2] selftests/bpf: add another gso_segs access From: Eric Dumazet To: Alexei Starovoitov , Daniel Borkmann Cc: "David S . Miller" , netdev , Eric Dumazet , Eric Dumazet , Stanislav Fomichev , bpf Content-Type: text/plain; charset="UTF-8" Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Use BPF_REG_1 for source and destination of gso_segs read, to exercise "bpf: fix access to skb_shared_info->gso_segs" fix. Signed-off-by: Eric Dumazet Suggested-by: Stanislav Fomichev --- tools/testing/selftests/bpf/verifier/ctx_skb.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/tools/testing/selftests/bpf/verifier/ctx_skb.c b/tools/testing/selftests/bpf/verifier/ctx_skb.c index b0fda2877119c4af08277bd0f329f238c193313c..d438193804b212ffa80c94be47e8c1aca392181e 100644 --- a/tools/testing/selftests/bpf/verifier/ctx_skb.c +++ b/tools/testing/selftests/bpf/verifier/ctx_skb.c @@ -974,6 +974,17 @@ .result = ACCEPT, .prog_type = BPF_PROG_TYPE_CGROUP_SKB, }, +{ + "read gso_segs from CGROUP_SKB", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, + offsetof(struct __sk_buff, gso_segs)), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_CGROUP_SKB, +}, { "write gso_segs from CGROUP_SKB", .insns = { -- 2.22.0.657.g960e92d24f-goog