From patchwork Fri Sep 4 09:59:03 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenz Bauer X-Patchwork-Id: 1357318 X-Patchwork-Delegate: bpf@iogearbox.net Return-Path: X-Original-To: incoming-bpf@patchwork.ozlabs.org Delivered-To: patchwork-incoming-bpf@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=bpf-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=reject dis=none) header.from=cloudflare.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; secure) header.d=cloudflare.com header.i=@cloudflare.com header.a=rsa-sha256 header.s=google header.b=KqoATMug; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4BjY7B4tWDz9sTM for ; Fri, 4 Sep 2020 19:59:34 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729941AbgIDJ7e (ORCPT ); Fri, 4 Sep 2020 05:59:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46750 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729930AbgIDJ7d (ORCPT ); Fri, 4 Sep 2020 05:59:33 -0400 Received: from mail-wr1-x443.google.com (mail-wr1-x443.google.com [IPv6:2a00:1450:4864:20::443]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D460BC061244 for ; Fri, 4 Sep 2020 02:59:32 -0700 (PDT) Received: by mail-wr1-x443.google.com with SMTP id j2so6113017wrx.7 for ; Fri, 04 Sep 2020 02:59:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cloudflare.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=ycv2LQ1rQbHAkz0iq7QhpQk+4LCrq+rjRQEPfWaxh9M=; b=KqoATMug73m0CbTqtrYFoNnm3aW7GbezJF6JqoaDhmRo5Tja5PiRMy2eMDlmTvXEVj 0kavYi1GuQmjQsPQifl5iqo1wsOPsbWm1PWya/iPKdgI3UkcpfPkqsOjRV+g4EfrHglJ vVm7V/UHdLxyjtYPLha78IYVqvd6AddczBZ9Q= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=ycv2LQ1rQbHAkz0iq7QhpQk+4LCrq+rjRQEPfWaxh9M=; b=BV4vZlyNZ254ZUNTSsD1LhFQ0n3Xy5+1TMExYj40hKTXdkhleXpPKOFKK7BHp3aD5d IMADquhrA6VV3C/B/O0QDPBmZFdIASAvmuMVOhPr4GCW6Uhxh2mxxGUvAoqsJ4zRj21K 9aKvJb7Z1d3eByqT5N9D+JvrJxsZF1HeOueiKWWxqPe0pKjNjWq4TQzdyExuO9L4O46C 3xsTOCFtmDGFZ3i86IFL54sm5Je3RmagZABppgCAX2gDqN9K3XLq1LRKtuO9R7DLVME1 RhKO48MsUIID/MSaEHwnRnn7B8LK6V9CwL/4HM3YghbytK5HZSyUzDXQNzP9tC/LQo5t WE9Q== X-Gm-Message-State: AOAM530Ums0WNxPfFQ+WnrnfP78wYE+PoezybJH5Ff/u2L0B2E2pwvVO 1OoyyybPpwCSUgpCoTgxGjMV8A== X-Google-Smtp-Source: ABdhPJwIl9quoB5JrQ4NRr7wdhraRS30AhnIQ3QwInr6fV/SKYroPu0uvMJJAbMP84bqiP9YEpRGGw== X-Received: by 2002:adf:b784:: with SMTP id s4mr7273436wre.116.1599213569432; Fri, 04 Sep 2020 02:59:29 -0700 (PDT) Received: from antares.lan (a.6.f.d.9.5.a.d.2.b.c.0.f.d.4.2.f.f.6.2.a.5.a.7.0.b.8.0.1.0.0.2.ip6.arpa. [2001:8b0:7a5a:26ff:24df:cb2:da59:df6a]) by smtp.gmail.com with ESMTPSA id c18sm11648088wrx.63.2020.09.04.02.59.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 04 Sep 2020 02:59:28 -0700 (PDT) From: Lorenz Bauer To: ast@kernel.org, yhs@fb.com, daniel@iogearbox.net, jakub@cloudflare.com, john.fastabend@gmail.com Cc: bpf@vger.kernel.org, kernel-team@cloudflare.com, Lorenz Bauer Subject: [PATCH bpf-next v3 5/6] selftests: bpf: Add helper to compare socket cookies Date: Fri, 4 Sep 2020 10:59:03 +0100 Message-Id: <20200904095904.612390-6-lmb@cloudflare.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200904095904.612390-1-lmb@cloudflare.com> References: <20200904095904.612390-1-lmb@cloudflare.com> MIME-Version: 1.0 Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org We compare socket cookies to ensure that insertion into a sockmap worked. Pull this out into a helper function for use in other tests. Signed-off-by: Lorenz Bauer --- .../selftests/bpf/prog_tests/sockmap_basic.c | 50 +++++++++++++------ 1 file changed, 36 insertions(+), 14 deletions(-) diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c index 0b79d78b98db..0fe2a737fc8e 100644 --- a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c +++ b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c @@ -47,6 +47,37 @@ static int connected_socket_v4(void) return -1; } +static void compare_cookies(struct bpf_map *src, struct bpf_map *dst) +{ + __u32 i, max_entries = bpf_map__max_entries(src); + int err, duration, src_fd, dst_fd; + + src_fd = bpf_map__fd(src); + dst_fd = bpf_map__fd(dst); + + for (i = 0; i < max_entries; i++) { + __u64 src_cookie, dst_cookie; + + err = bpf_map_lookup_elem(src_fd, &i, &src_cookie); + if (err && errno == ENOENT) { + err = bpf_map_lookup_elem(dst_fd, &i, &dst_cookie); + CHECK(!err, "map_lookup_elem(dst)", "element %u not deleted\n", i); + CHECK(err && errno != ENOENT, "map_lookup_elem(dst)", "%s\n", + strerror(errno)); + continue; + } + if (CHECK(err, "lookup_elem(src)", "%s\n", strerror(errno))) + continue; + + err = bpf_map_lookup_elem(dst_fd, &i, &dst_cookie); + if (CHECK(err, "lookup_elem(dst)", "%s\n", strerror(errno))) + continue; + + CHECK(dst_cookie != src_cookie, "cookie mismatch", + "%llu != %llu (pos %u)\n", dst_cookie, src_cookie, i); + } +} + /* Create a map, populate it with one socket, and free the map. */ static void test_sockmap_create_update_free(enum bpf_map_type map_type) { @@ -106,9 +137,9 @@ static void test_skmsg_helpers(enum bpf_map_type map_type) static void test_sockmap_update(enum bpf_map_type map_type) { struct bpf_prog_test_run_attr tattr; - int err, prog, src, dst, duration = 0; + int err, prog, src, duration = 0; struct test_sockmap_update *skel; - __u64 src_cookie, dst_cookie; + struct bpf_map *dst_map; const __u32 zero = 0; char dummy[14] = {0}; __s64 sk; @@ -124,18 +155,14 @@ static void test_sockmap_update(enum bpf_map_type map_type) prog = bpf_program__fd(skel->progs.copy_sock_map); src = bpf_map__fd(skel->maps.src); if (map_type == BPF_MAP_TYPE_SOCKMAP) - dst = bpf_map__fd(skel->maps.dst_sock_map); + dst_map = skel->maps.dst_sock_map; else - dst = bpf_map__fd(skel->maps.dst_sock_hash); + dst_map = skel->maps.dst_sock_hash; err = bpf_map_update_elem(src, &zero, &sk, BPF_NOEXIST); if (CHECK(err, "update_elem(src)", "errno=%u\n", errno)) goto out; - err = bpf_map_lookup_elem(src, &zero, &src_cookie); - if (CHECK(err, "lookup_elem(src, cookie)", "errno=%u\n", errno)) - goto out; - tattr = (struct bpf_prog_test_run_attr){ .prog_fd = prog, .repeat = 1, @@ -148,12 +175,7 @@ static void test_sockmap_update(enum bpf_map_type map_type) "errno=%u retval=%u\n", errno, tattr.retval)) goto out; - err = bpf_map_lookup_elem(dst, &zero, &dst_cookie); - if (CHECK(err, "lookup_elem(dst, cookie)", "errno=%u\n", errno)) - goto out; - - CHECK(dst_cookie != src_cookie, "cookie mismatch", "%llu != %llu\n", - dst_cookie, src_cookie); + compare_cookies(skel->maps.src, dst_map); out: test_sockmap_update__destroy(skel);