From patchwork Fri Dec 4 11:52:06 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: 11951589 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 CC8D1C2BBD4 for ; Fri, 4 Dec 2020 11:53:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AB15622A84 for ; Fri, 4 Dec 2020 11:53:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387903AbgLDLxm (ORCPT ); Fri, 4 Dec 2020 06:53:42 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:45293 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730110AbgLDLxh (ORCPT ); Fri, 4 Dec 2020 06:53:37 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1607082730; 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=Iu5eEQc6BVw7sLLw73HclvN8HnJfR2XuNo4UCs27Raw=; b=OpNVUNDgLf234v9qh7WwqbcTx3/eFKspLHm8fbR8D2Cd35nrbMvsh6ZS7L5KnE4V+zZLqd K1SYph/KQRuj94YCyg0UHR8AWpLKOIVHjTWP1KA+Ow6ozOjzM+P5JBPzJGSiZCNcs/JwUo ggBb8tHM7gZYz6PL/qbmYmZPvJ9ybtU= Received: from mail-ej1-f70.google.com (mail-ej1-f70.google.com [209.85.218.70]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-212-Wj3aAz4VN8aDE-iJW6p6hw-1; Fri, 04 Dec 2020 06:52:09 -0500 X-MC-Unique: Wj3aAz4VN8aDE-iJW6p6hw-1 Received: by mail-ej1-f70.google.com with SMTP id u25so1975754ejf.3 for ; Fri, 04 Dec 2020 03:52:09 -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=Iu5eEQc6BVw7sLLw73HclvN8HnJfR2XuNo4UCs27Raw=; b=GgmJ/oMIHiyTwDlNjcOq4NLRUzM/zmqbDWcaFTU1tBpF/6Q7snEZZWXBtZfryOS0c9 PYQM0SQdu8k+AHN92MAUFg6eTd4zixsHvjwW9G7asN3SyGDt4vXraUxxXlt4chs8ws97 02hX4nRUNrgS5qNepOz+1Sb+Ap0Ze0hDROuX+v2TMrv5CrmWd87Qqi2LNYSIk+aTaBF4 MJ4EN6DESSMdg8uOnbOycJSMafhWboehOOBtlIYyS3E3VypyR3nSo1BqIn8BgxNZ9ZQ/ od1apaIpW9N9ouf2Ffnt4osdVDGE76jgN8yOTbR5/WtpQavU8lRjwGm2NFEGYyC4T+Bw IHzg== X-Gm-Message-State: AOAM531+xFD7IfZHTkIawH4JEq4C34ONeZoeGw4/g/4AtGqzqFN0k2IR 8x16qrq4dlBBWvHi5v/IT4T2yDwrau0kFh9lrz/G2u7iXNdo65gUnEBdwUAYiZDsKYbVD8XwHZa KWdjvzJNdbse+8oSAFM/QuA== X-Received: by 2002:a17:906:caa:: with SMTP id k10mr6536561ejh.204.1607082727934; Fri, 04 Dec 2020 03:52:07 -0800 (PST) X-Google-Smtp-Source: ABdhPJyugoXBC4ufUudPvLnR2Mz8lAS3J/eeuYSbtUpzdXzh3Ra4AwosKXY4UlzD5sCZCi55C7YXvA== X-Received: by 2002:a17:906:caa:: with SMTP id k10mr6536537ejh.204.1607082727607; Fri, 04 Dec 2020 03:52:07 -0800 (PST) Received: from alrua-x1.borgediget.toke.dk ([2a0c:4d80:42:443::2]) by smtp.gmail.com with ESMTPSA id qp16sm2890378ejb.74.2020.12.04.03.52.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 04 Dec 2020 03:52:07 -0800 (PST) Received: by alrua-x1.borgediget.toke.dk (Postfix, from userid 1000) id 9B1E81843EF; Fri, 4 Dec 2020 12:52:06 +0100 (CET) Subject: [PATCH bpf v2 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: Fri, 04 Dec 2020 12:52:06 +0100 Message-ID: <160708272654.192754.14360138626200913557.stgit@toke.dk> In-Reply-To: <160708272217.192754.14019805999368221369.stgit@toke.dk> References: <160708272217.192754.14019805999368221369.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 becd27b2f4ba..61527b43f067 100755 --- a/tools/testing/selftests/bpf/test_offload.py +++ b/tools/testing/selftests/bpf/test_offload.py @@ -911,11 +911,18 @@ 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) @@ -1032,6 +1039,15 @@ 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) @@ -1039,7 +1055,6 @@ 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)