From patchwork Wed Mar 31 16:44:58 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yauheni Kaliuta X-Patchwork-Id: 12175769 X-Patchwork-Delegate: bpf@iogearbox.net 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=-15.8 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 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 4D137C433B4 for ; Wed, 31 Mar 2021 16:46:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1B1B26101E for ; Wed, 31 Mar 2021 16:46:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232406AbhCaQpq (ORCPT ); Wed, 31 Mar 2021 12:45:46 -0400 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:52234 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232805AbhCaQpW (ORCPT ); Wed, 31 Mar 2021 12:45:22 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1617209121; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ue1WJN9VVLFtg4vxqXBhw+4/lkwt4siu2NvJcjrHRVw=; b=SPn0nqp+/5ndQpCLGpafDRGLY3PfQSzHGe+wapNlbYGDnRt1E9Puu214DoLo8Zk1YXFI07 mORbArXYkGjPi6ZhLhjme9TG+AS2n0QqNCK0MNIyQf1PGPmLmpaRlv8hRHkqtoCZkL3z5k 1o+w6M0VROdfQ8BC5bDxn2B+k6tNW84= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-528-724S6QzSNQi_ZK9sqV5fJQ-1; Wed, 31 Mar 2021 12:45:19 -0400 X-MC-Unique: 724S6QzSNQi_ZK9sqV5fJQ-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id D1DA710082EC; Wed, 31 Mar 2021 16:45:18 +0000 (UTC) Received: from astarta.redhat.com (ovpn-114-48.ams2.redhat.com [10.36.114.48]) by smtp.corp.redhat.com (Postfix) with ESMTP id A360516922; Wed, 31 Mar 2021 16:45:17 +0000 (UTC) From: Yauheni Kaliuta To: bpf@vger.kernel.org Cc: andrii@kernel.org, jolsa@redhat.com, Yauheni Kaliuta Subject: [PATCH bpf-next v3 2/8] selftests/bpf: test_progs/sockopt_sk: Convert to use BPF skeleton Date: Wed, 31 Mar 2021 19:44:58 +0300 Message-Id: <20210331164504.320614-2-yauheni.kaliuta@redhat.com> In-Reply-To: <20210331164504.320614-1-yauheni.kaliuta@redhat.com> References: <20210331164433.320534-1-yauheni.kaliuta@redhat.com> <20210331164504.320614-1-yauheni.kaliuta@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net Switch the test to use BPF skeleton to save some boilerplate and make it easy to access bpf program bss segment. The latter will be used to pass PAGE_SIZE from userspace since there is no convenient way for bpf program to get it from inside of the kernel. Signed-off-by: Yauheni Kaliuta --- .../selftests/bpf/prog_tests/sockopt_sk.c | 65 +++++-------------- 1 file changed, 17 insertions(+), 48 deletions(-) diff --git a/tools/testing/selftests/bpf/prog_tests/sockopt_sk.c b/tools/testing/selftests/bpf/prog_tests/sockopt_sk.c index d5b44b135c00..7274b12abe17 100644 --- a/tools/testing/selftests/bpf/prog_tests/sockopt_sk.c +++ b/tools/testing/selftests/bpf/prog_tests/sockopt_sk.c @@ -3,6 +3,7 @@ #include "cgroup_helpers.h" #include +#include "sockopt_sk.skel.h" #ifndef SOL_TCP #define SOL_TCP IPPROTO_TCP @@ -191,60 +192,28 @@ static int getsetsockopt(void) return -1; } -static int prog_attach(struct bpf_object *obj, int cgroup_fd, const char *title) -{ - enum bpf_attach_type attach_type; - enum bpf_prog_type prog_type; - struct bpf_program *prog; - int err; - - err = libbpf_prog_type_by_name(title, &prog_type, &attach_type); - if (err) { - log_err("Failed to deduct types for %s BPF program", title); - return -1; - } - - prog = bpf_object__find_program_by_title(obj, title); - if (!prog) { - log_err("Failed to find %s BPF program", title); - return -1; - } - - err = bpf_prog_attach(bpf_program__fd(prog), cgroup_fd, - attach_type, 0); - if (err) { - log_err("Failed to attach %s BPF program", title); - return -1; - } - - return 0; -} - static void run_test(int cgroup_fd) { - struct bpf_prog_load_attr attr = { - .file = "./sockopt_sk.o", - }; - struct bpf_object *obj; - int ignored; - int err; - - err = bpf_prog_load_xattr(&attr, &obj, &ignored); - if (CHECK_FAIL(err)) - return; + struct sockopt_sk *skel; + + skel = sockopt_sk__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel_load")) + goto cleanup; - err = prog_attach(obj, cgroup_fd, "cgroup/getsockopt"); - if (CHECK_FAIL(err)) - goto close_bpf_object; + skel->links._setsockopt = + bpf_program__attach_cgroup(skel->progs._setsockopt, cgroup_fd); + if (!ASSERT_OK_PTR(skel->links._setsockopt, "setsockopt_link")) + goto cleanup; - err = prog_attach(obj, cgroup_fd, "cgroup/setsockopt"); - if (CHECK_FAIL(err)) - goto close_bpf_object; + skel->links._getsockopt = + bpf_program__attach_cgroup(skel->progs._getsockopt, cgroup_fd); + if (!ASSERT_OK_PTR(skel->links._getsockopt, "getsockopt_link")) + goto cleanup; - CHECK_FAIL(getsetsockopt()); + ASSERT_OK(getsetsockopt(), "getsetsockopt"); -close_bpf_object: - bpf_object__close(obj); +cleanup: + sockopt_sk__destroy(skel); } void test_sockopt_sk(void)