From patchwork Wed May 22 09:23:50 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geliang Tang X-Patchwork-Id: 798280 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 27BB652F7A; Wed, 22 May 2024 09:24:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716369880; cv=none; b=GRQ1k8a29r5/wePNXcEDb+EuUiAlfHtc4GOMqRZk1xDRjNT7TXa1uaWmVeGcsbzHHiBFOS5jJoeJbaXAl4k9muaNf7H1wiDYgvYuKoubY/Zd6MWqMkyvG/JMp1Otj7SJDZMhzuZgEz86FnTNwdjXfaqog2+1ZvFKnv0wcfHkcWs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716369880; c=relaxed/simple; bh=Zdu/GQ2eDLEDmVhEZflA/e0Wxzw69IlRiSbUB+pGWDQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Gjtznn7ibiBIThYucl6+U7NfUWZcsQDTlAf3uik0/wUTQmn7xhPZFE8Bq2Lj2DcQEIBD7rZjxd7JGUPgJkPGnnoij4tC2CzoIpHdqMh+G8AxCG+d8SdvUT7v8rp/0yi5qVm3W9GeOg0iQKQ0GZkqMaVDf0lm42P6U2+6WE7FjSE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=hvKWyUjg; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="hvKWyUjg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D381CC4AF0B; Wed, 22 May 2024 09:24:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1716369880; bh=Zdu/GQ2eDLEDmVhEZflA/e0Wxzw69IlRiSbUB+pGWDQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hvKWyUjgak+W2k5T9Wtd9qDAnET2zz1F5zebAFkshMKk18FT0p77zWGAhXDJDsuSp cgTxwzj5odZSzMoTimKUXArjYPVrJ4N8BvIjmP4YSZ6cTUz64XEGmXsCuEYpOBYo/5 oRqbtaAjKrZoTLf8LNGcELes9g191Y/GttfGU5GD4/Lhk0YLEVOHTCVCRgWN0iNLAD jIWs3KdN6dA+FJtwJkXe11DMyYr3Oi7au73xMAwBGxCVAoJLfjuLu2ZwobIGwV5vQK huOmcpSPu5tQmVXSnrFTRuebVxiNGePtS0VobKeYBrUvUVEzzkw7KfqhxeTcnCsBJu 2KUgDeq83Az+A== From: Geliang Tang To: Andrii Nakryiko , Eduard Zingerman , Mykola Lysenko , Alexei Starovoitov , Daniel Borkmann , Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , Shuah Khan Cc: Geliang Tang , bpf@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: [PATCH bpf-next v3 8/8] selftests/bpf: Add post_connect_cb callback Date: Wed, 22 May 2024 17:23:50 +0800 Message-ID: <6f4609d9f3b294ad5944cfb4f0fcce86c074a3f5.1716369375.git.tanggeliang@kylinos.cn> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Geliang Tang For getting rid of the second parameter of do_test(), this patch adds a new callback post_connect_cb in struct network_helper_opts, it will be invoked after connect_fd_to_addr() in connect_to_fd_opts(). Then define a dctcp dedicated post_connect_cb callback, invoking bpf_map_lookup_elem() in it, named stg_post_connect_cb() and set it in test_dctcp(). Signed-off-by: Geliang Tang --- tools/testing/selftests/bpf/network_helpers.c | 7 ++- tools/testing/selftests/bpf/network_helpers.h | 1 + .../selftests/bpf/prog_tests/bpf_tcp_ca.c | 44 ++++++++++--------- 3 files changed, 30 insertions(+), 22 deletions(-) diff --git a/tools/testing/selftests/bpf/network_helpers.c b/tools/testing/selftests/bpf/network_helpers.c index fae4add78f4d..c61da0a3197d 100644 --- a/tools/testing/selftests/bpf/network_helpers.c +++ b/tools/testing/selftests/bpf/network_helpers.c @@ -356,10 +356,15 @@ int connect_to_fd_opts(int server_fd, const struct network_helper_opts *opts) opts->post_socket_cb(fd, opts->cb_opts)) goto error_close; - if (!opts->noconnect) + if (!opts->noconnect) { if (connect_fd_to_addr(fd, &addr, addrlen, opts->must_fail)) goto error_close; + if (opts->post_connect_cb && + opts->post_connect_cb(fd, opts->cb_opts)) + goto error_close; + } + return fd; error_close: diff --git a/tools/testing/selftests/bpf/network_helpers.h b/tools/testing/selftests/bpf/network_helpers.h index 24c873963742..15b6a01c54c1 100644 --- a/tools/testing/selftests/bpf/network_helpers.h +++ b/tools/testing/selftests/bpf/network_helpers.h @@ -28,6 +28,7 @@ struct network_helper_opts { int type; int proto; int (*post_socket_cb)(int fd, void *opts); + int (*post_connect_cb)(int fd, void *opts); void *cb_opts; }; diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c index 4c85b443a78c..467774dd9dd9 100644 --- a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c +++ b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c @@ -39,11 +39,9 @@ static int settcpca(int fd, const char *tcp_ca) return 0; } -static void do_test(const struct network_helper_opts *opts, - const struct bpf_map *sk_stg_map) +static void do_test(const struct network_helper_opts *opts) { int lfd = -1, fd = -1; - int err; lfd = start_server_str(AF_INET6, NULL, 0, opts); if (!ASSERT_NEQ(lfd, -1, "socket")) @@ -54,16 +52,6 @@ static void do_test(const struct network_helper_opts *opts, if (!ASSERT_NEQ(fd, -1, "connect_to_fd_opts")) goto done; - if (sk_stg_map) { - int tmp_stg; - - err = bpf_map_lookup_elem(bpf_map__fd(sk_stg_map), &fd, - &tmp_stg); - if (!ASSERT_ERR(err, "bpf_map_lookup_elem(sk_stg_map)") || - !ASSERT_EQ(errno, ENOENT, "bpf_map_lookup_elem(sk_stg_map)")) - goto done; - } - ASSERT_OK(send_recv_data(lfd, fd, total_bytes), "send_recv_data"); done: @@ -101,7 +89,7 @@ static void test_cubic(void) return; } - do_test(&opts, NULL); + do_test(&opts); ASSERT_EQ(cubic_skel->bss->bpf_cubic_acked_called, 1, "pkts_acked called"); @@ -120,6 +108,19 @@ static int stg_post_socket_cb(int fd, void *opts) return bpf_map_update_elem(cb_opts->map_fd, &fd, &expected_stg, BPF_NOEXIST); } +static int stg_post_connect_cb(int fd, void *opts) +{ + struct cb_opts *cb_opts = (struct cb_opts *)opts; + int tmp_stg; + int err; + + err = bpf_map_lookup_elem(cb_opts->map_fd, &fd, &tmp_stg); + if (!ASSERT_ERR(err, "bpf_map_lookup_elem(sk_stg_map)") || + !ASSERT_EQ(errno, ENOENT, "bpf_map_lookup_elem(sk_stg_map)")) + return err; + return 0; +} + static void test_dctcp(void) { struct cb_opts cb_opts = { @@ -127,6 +128,7 @@ static void test_dctcp(void) }; struct network_helper_opts opts = { .post_socket_cb = stg_post_socket_cb, + .post_connect_cb = stg_post_connect_cb, .cb_opts = &cb_opts, }; struct bpf_dctcp *dctcp_skel; @@ -143,7 +145,7 @@ static void test_dctcp(void) } cb_opts.map_fd = bpf_map__fd(dctcp_skel->maps.sk_stg_map); - do_test(&opts, dctcp_skel->maps.sk_stg_map); + do_test(&opts); ASSERT_EQ(dctcp_skel->bss->stg_result, expected_stg, "stg_result"); bpf_link__destroy(link); @@ -344,14 +346,14 @@ static void test_update_ca(void) link = bpf_map__attach_struct_ops(skel->maps.ca_update_1); ASSERT_OK_PTR(link, "attach_struct_ops"); - do_test(&opts, NULL); + do_test(&opts); saved_ca1_cnt = skel->bss->ca1_cnt; ASSERT_GT(saved_ca1_cnt, 0, "ca1_ca1_cnt"); err = bpf_link__update_map(link, skel->maps.ca_update_2); ASSERT_OK(err, "update_map"); - do_test(&opts, NULL); + do_test(&opts); ASSERT_EQ(skel->bss->ca1_cnt, saved_ca1_cnt, "ca2_ca1_cnt"); ASSERT_GT(skel->bss->ca2_cnt, 0, "ca2_ca2_cnt"); @@ -380,14 +382,14 @@ static void test_update_wrong(void) link = bpf_map__attach_struct_ops(skel->maps.ca_update_1); ASSERT_OK_PTR(link, "attach_struct_ops"); - do_test(&opts, NULL); + do_test(&opts); saved_ca1_cnt = skel->bss->ca1_cnt; ASSERT_GT(saved_ca1_cnt, 0, "ca1_ca1_cnt"); err = bpf_link__update_map(link, skel->maps.ca_wrong); ASSERT_ERR(err, "update_map"); - do_test(&opts, NULL); + do_test(&opts); ASSERT_GT(skel->bss->ca1_cnt, saved_ca1_cnt, "ca2_ca1_cnt"); bpf_link__destroy(link); @@ -417,7 +419,7 @@ static void test_mixed_links(void) link = bpf_map__attach_struct_ops(skel->maps.ca_update_1); ASSERT_OK_PTR(link, "attach_struct_ops"); - do_test(&opts, NULL); + do_test(&opts); ASSERT_GT(skel->bss->ca1_cnt, 0, "ca1_ca1_cnt"); err = bpf_link__update_map(link, skel->maps.ca_no_link); @@ -524,7 +526,7 @@ static void test_cc_cubic(void) return; } - do_test(&opts, NULL); + do_test(&opts); bpf_link__destroy(link); bpf_cc_cubic__destroy(cc_cubic_skel);