From patchwork Mon Mar 29 07:57:36 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 412498 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=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham 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 AC45CC433E3 for ; Mon, 29 Mar 2021 08:36:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8B049619E5 for ; Mon, 29 Mar 2021 08:36:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232088AbhC2Ig0 (ORCPT ); Mon, 29 Mar 2021 04:36:26 -0400 Received: from mail.kernel.org ([198.145.29.99]:56230 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234203AbhC2Iev (ORCPT ); Mon, 29 Mar 2021 04:34:51 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 665AF61929; Mon, 29 Mar 2021 08:34:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1617006890; bh=e53U7nlaCOALcoWHSz0ckvm1wTTWN1D9h3L20DQAsZA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SbDejb4QLR8aBMp4TQw2jTrWZ86rYXEYpnvnSZLaY57R1gCNNCvppnLY10Z6r9tFS LvWYqpuGhhZBTZkKNsETLWjSc2EkzoKsxCGaYxi36tas98TvhGqMt9pUr8j7J6ZmE1 yrq7U2N70bCPIT1VFzjWJDw4181lDbLXd4fJy/ek= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hangbin Liu , Daniel Borkmann , William Tu , Sasha Levin Subject: [PATCH 5.11 140/254] selftests/bpf: Set gopt opt_class to 0 if get tunnel opt failed Date: Mon, 29 Mar 2021 09:57:36 +0200 Message-Id: <20210329075637.817894774@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210329075633.135869143@linuxfoundation.org> References: <20210329075633.135869143@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Hangbin Liu [ Upstream commit 31254dc9566221429d2cfb45fd5737985d70f2b6 ] When fixing the bpf test_tunnel.sh geneve failure. I only fixed the IPv4 part but forgot the IPv6 issue. Similar with the IPv4 fixes 557c223b643a ("selftests/bpf: No need to drop the packet when there is no geneve opt"), when there is no tunnel option and bpf_skb_get_tunnel_opt() returns error, there is no need to drop the packets and break all geneve rx traffic. Just set opt_class to 0 and keep returning TC_ACT_OK at the end. Fixes: 557c223b643a ("selftests/bpf: No need to drop the packet when there is no geneve opt") Fixes: 933a741e3b82 ("selftests/bpf: bpf tunnel test.") Signed-off-by: Hangbin Liu Signed-off-by: Daniel Borkmann Acked-by: William Tu Link: https://lore.kernel.org/bpf/20210309032214.2112438-1-liuhangbin@gmail.com Signed-off-by: Sasha Levin --- tools/testing/selftests/bpf/progs/test_tunnel_kern.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/tools/testing/selftests/bpf/progs/test_tunnel_kern.c b/tools/testing/selftests/bpf/progs/test_tunnel_kern.c index 9afe947cfae9..ba6eadfec565 100644 --- a/tools/testing/selftests/bpf/progs/test_tunnel_kern.c +++ b/tools/testing/selftests/bpf/progs/test_tunnel_kern.c @@ -508,10 +508,8 @@ int _ip6geneve_get_tunnel(struct __sk_buff *skb) } ret = bpf_skb_get_tunnel_opt(skb, &gopt, sizeof(gopt)); - if (ret < 0) { - ERROR(ret); - return TC_ACT_SHOT; - } + if (ret < 0) + gopt.opt_class = 0; bpf_trace_printk(fmt, sizeof(fmt), key.tunnel_id, key.remote_ipv4, gopt.opt_class);