From patchwork Thu Dec 3 21:35:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Toke_H=C3=B8iland-J=C3=B8rgensen?= X-Patchwork-Id: 337370 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=-17.2 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, URIBL_BLOCKED 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 692DBC433FE for ; Thu, 3 Dec 2020 21:37:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 26C08221F2 for ; Thu, 3 Dec 2020 21:37:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387801AbgLCVg5 (ORCPT ); Thu, 3 Dec 2020 16:36:57 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:55355 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389381AbgLCVg5 (ORCPT ); Thu, 3 Dec 2020 16:36:57 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1607031330; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=OspxR8nxroXzKoAByQKtvrhTzOZb9bKKpD2rIyWg0Bw=; b=XwZ7EUK8pQEcGWjNXvUL3iWkUolFKwj4M3iifhAOEgNLQE0dF1PI8/ZH6R/IAA6pQkx0Gb cAt5uD5BqWjan3Z2+NifcsvCu31VPuV2sV5uF1JB5TRaWZfLGyeIAzK6GPy1eEKiZKSJHa +QdkboWhjcPQLvSfY0u4P2pyPFbn248= Received: from mail-qt1-f199.google.com (mail-qt1-f199.google.com [209.85.160.199]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-482-der5VV4OPZiFOaZIWrMwvA-1; Thu, 03 Dec 2020 16:35:29 -0500 X-MC-Unique: der5VV4OPZiFOaZIWrMwvA-1 Received: by mail-qt1-f199.google.com with SMTP id t17so2713941qtp.3 for ; Thu, 03 Dec 2020 13:35:29 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:from:to:cc:date:message-id:in-reply-to :references:user-agent:mime-version:content-transfer-encoding; bh=OspxR8nxroXzKoAByQKtvrhTzOZb9bKKpD2rIyWg0Bw=; b=hnUELivhqi80FGMkEPKProrRYYxN3hqbh/SewMqfoj3fbfjt188+OITMc/8USxX6iJ dNklPD9W5myc1yUtAlMpqMTQlEr2obu2QH9EI5spxppw/t+eXEChODLBNtXowLqnpE2w 0FMyprLvYxE36MMG/3c03G6K5ZcYZ5tc8aht2Ynu/Y0K45E47sH1WjT0trfuNjyFelHh v/IKh5vaPJNwLnpabhTFiDBJZ5YGt8ma7fE4/PpCSCuzyQ0ptW6hFPOsMosAtQP4q1gD 5urZr6nuAuHBW65WNohJUYjQ2r6Ms+T2GLic87Fzuk3CbDGw3r21D1FgDnO9k7WHJnGp SKXA== X-Gm-Message-State: AOAM532Dum6TBO0hE9LlCTd2q5uTfLRL8OOZDIvaDzeDhSZHPWQUamkP hb4ScX+rSxAf1qb2wpe3043X/Zph5L31OeMZDu69etuWimqkcWcFvcwc4nJnEMAAKJ7MZssyGOS N/bzWQHaUCrrvCq5lAWh3dg== X-Received: by 2002:a37:4854:: with SMTP id v81mr5204186qka.20.1607031328687; Thu, 03 Dec 2020 13:35:28 -0800 (PST) X-Google-Smtp-Source: ABdhPJw/SJA9fM5UcB2THmOJfZjkHU1sPRMmEkRZN3cfIodhNnsPMKTfttELv6baAorjBowVQySTyw== X-Received: by 2002:a37:4854:: with SMTP id v81mr5204152qka.20.1607031328232; Thu, 03 Dec 2020 13:35:28 -0800 (PST) Received: from alrua-x1.borgediget.toke.dk ([2a0c:4d80:42:443::2]) by smtp.gmail.com with ESMTPSA id i3sm2468015qtv.23.2020.12.03.13.35.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 03 Dec 2020 13:35:24 -0800 (PST) Received: by alrua-x1.borgediget.toke.dk (Postfix, from userid 1000) id 8744B1843EB; Thu, 3 Dec 2020 22:35:21 +0100 (CET) Subject: [PATCH bpf 4/7] selftests/bpf/test_offload.py: only check verifier log on verification fails From: =?utf-8?q?Toke_H=C3=B8iland-J=C3=B8rgensen?= To: Jakub Kicinski Cc: "David S. Miller" , Daniel Borkmann , Alexei Starovoitov , Andrii Nakryiko , Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , Jesper Dangaard Brouer , "Michael S. Tsirkin" , Romain Perier , Allen Pais , Grygorii Strashko , Simon Horman , "Gustavo A. R. Silva" , Lorenzo Bianconi , Wei Yongjun , Jiri Benc , oss-drivers@netronome.com, linux-omap@vger.kernel.org, netdev@vger.kernel.org, bpf@vger.kernel.org Date: Thu, 03 Dec 2020 22:35:21 +0100 Message-ID: <160703132146.162669.15903502405321937636.stgit@toke.dk> In-Reply-To: <160703131710.162669.9632344967082582016.stgit@toke.dk> References: <160703131710.162669.9632344967082582016.stgit@toke.dk> User-Agent: StGit/0.23 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org From: Toke Høiland-Jørgensen Since 6f8a57ccf85 ("bpf: Make verifier log more relevant by default"), the verifier discards log messages for successfully-verified programs. This broke test_offload.py which is looking for a verification message from the driver callback. Change test_offload.py to use the toggle in netdevsim to make the verification fail before looking for the verification message. Signed-off-by: Toke Høiland-Jørgensen --- tools/testing/selftests/bpf/test_offload.py | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/bpf/test_offload.py b/tools/testing/selftests/bpf/test_offload.py index 7afe259c785f..6f8ff2f27027 100755 --- a/tools/testing/selftests/bpf/test_offload.py +++ b/tools/testing/selftests/bpf/test_offload.py @@ -905,11 +905,18 @@ try: sim.tc_flush_filters() + start_test("Test TC offloads failure...") + sim.dfs["dev/bpf_bind_verifier_accept"] = 0 + ret, _, err = sim.cls_bpf_add_filter(obj, verbose=True, skip_sw=True, + fail=False, include_stderr=True) + fail(ret == 0, "TC filter did not reject with TC offloads enabled") + check_verifier_log(err, "[netdevsim] Hello from netdevsim!") + sim.dfs["dev/bpf_bind_verifier_accept"] = 1 + start_test("Test TC offloads work...") ret, _, err = sim.cls_bpf_add_filter(obj, verbose=True, skip_sw=True, fail=False, include_stderr=True) fail(ret != 0, "TC filter did not load with TC offloads enabled") - check_verifier_log(err, "[netdevsim] Hello from netdevsim!") start_test("Test TC offload basics...") dfs = simdev.dfs_get_bound_progs(expected=1) @@ -1026,6 +1033,15 @@ try: rm("/sys/fs/bpf/offload") sim.wait_for_flush() + start_test("Test XDP load failure...") + sim.dfs["dev/bpf_bind_verifier_accept"] = 0 + ret, _, err = bpftool_prog_load("sample_ret0.o", "/sys/fs/bpf/offload", + dev=sim['ifname'], fail=False, include_stderr=True) + fail(ret == 0, "verifier should fail on load") + check_verifier_log(err, "[netdevsim] Hello from netdevsim!") + sim.dfs["dev/bpf_bind_verifier_accept"] = 1 + sim.wait_for_flush() + start_test("Test XDP offload...") _, _, err = sim.set_xdp(obj, "offload", verbose=True, include_stderr=True) ipl = sim.ip_link_show(xdp=True) @@ -1033,7 +1049,6 @@ try: progs = bpftool_prog_list(expected=1) prog = progs[0] fail(link_xdp["id"] != prog["id"], "Loaded program has wrong ID") - check_verifier_log(err, "[netdevsim] Hello from netdevsim!") start_test("Test XDP offload is device bound...") dfs = simdev.dfs_get_bound_progs(expected=1)