From patchwork Wed May 22 09:23:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geliang Tang X-Patchwork-Id: 798514 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 7839C80BF8; Wed, 22 May 2024 09:24:26 +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=1716369866; cv=none; b=nVI7hzJxblGKCfGYZ34vTbm84NSzFgjAEHvxmpk8QtIbmsd5jz9NcW5QSX+Gc5+0FuevMFAjZ8a0ovbvkEKzbkNuXVQSlWK9x7cmGuUc3T032zmMkJpJ90iO8G32Or9F/SadMAQiF5g1eC7WvYxME+PW15GV0Z9HMjZVt65zwAc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716369866; c=relaxed/simple; bh=RnkdV6dycMgmK7cMeR5oZeYT1Vjyur0S4P1x8cMxaLk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=fNRKUSZAEOtTu4KtSXvnNI4LH7JkKhv8CN5gK/4KaRA6sUFLmN/99sDoTvX217Zzr1aLrjokXyALGH6P6kETzejDVGbayrfwevmS4KopCz/LWE1kNq79/ceKYqWNCgb32YyuTMoDwBrYDdIFL/8VQQxo6uVrMzbwZA7zBnKGpUI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=etf/SUSn; 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="etf/SUSn" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F3898C4AF08; Wed, 22 May 2024 09:24:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1716369866; bh=RnkdV6dycMgmK7cMeR5oZeYT1Vjyur0S4P1x8cMxaLk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=etf/SUSnV5YqDCpAWsV1PZ5obdPv24KUX5ArO1UQzIzkJl0h6E0p8ehsuWvOfgx9d DGDZhPMoqex4Vi9E2yPF9u2DHp6dfLCGq2HZBtoCbk/iYiJkuH6VPHEmTQCm5LTjAC I09VFSCxnD9RpPMGsJU9PvRpSMx6M2MTqvTPkEg1m1/0Hnj6diKGvRb9Hsm914Dw2J soARCj3hDS7hEPrwyKQNMZS+SA8MtbitrImMonkKgHqDkqUS+7yu8hbrrqGqiwJtFV OHnUfRneEY2ovnFKHJg2JkaLJ1syHnJVBxPJ705gfJMsNQLiXu66q7lPzpx0bDlw8T BmjOh/PlaGvGg== 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 5/8] selftests/bpf: Use post_socket_cb in connect_to_fd_opts Date: Wed, 22 May 2024 17:23:47 +0800 Message-ID: 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 Since the post_socket_cb() callback is added in struct network_helper_opts, it's make sense to use it not only in __start_server(), but also in connect_to_fd_opts(). Then it can be used to set TCP_CONGESTION sockopt. Add a "void *" type member cb_opts into struct network_helper_opts, and add a new struct named cb_opts in prog_tests/bpf_tcp_ca.c, then cc can be moved into struct cb_opts from network_helper_opts. Define a new callback cc_cb() to set TCP_CONGESTION sockopt, and set it to post_socket_cb pointer. Signed-off-by: Geliang Tang --- tools/testing/selftests/bpf/network_helpers.c | 5 ++--- tools/testing/selftests/bpf/network_helpers.h | 2 +- .../selftests/bpf/prog_tests/bpf_tcp_ca.c | 18 +++++++++++++++++- 3 files changed, 20 insertions(+), 5 deletions(-) diff --git a/tools/testing/selftests/bpf/network_helpers.c b/tools/testing/selftests/bpf/network_helpers.c index ba80005d2d7a..6f80c0285464 100644 --- a/tools/testing/selftests/bpf/network_helpers.c +++ b/tools/testing/selftests/bpf/network_helpers.c @@ -351,9 +351,8 @@ int connect_to_fd_opts(int server_fd, const struct network_helper_opts *opts) if (settimeo(fd, opts->timeout_ms)) goto error_close; - if (opts->cc && opts->cc[0] && - setsockopt(fd, SOL_TCP, TCP_CONGESTION, opts->cc, - strlen(opts->cc) + 1)) + if (opts->post_socket_cb && + opts->post_socket_cb(fd, opts->cb_opts)) goto error_close; if (!opts->noconnect) diff --git a/tools/testing/selftests/bpf/network_helpers.h b/tools/testing/selftests/bpf/network_helpers.h index d1d28d4f92bd..24c873963742 100644 --- a/tools/testing/selftests/bpf/network_helpers.h +++ b/tools/testing/selftests/bpf/network_helpers.h @@ -22,13 +22,13 @@ typedef __u16 __sum16; #define MAGIC_BYTES 123 struct network_helper_opts { - const char *cc; int timeout_ms; bool must_fail; bool noconnect; int type; int proto; int (*post_socket_cb)(int fd, void *opts); + void *cb_opts; }; /* ipv4 test vector */ 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 0aca02532794..c9dd2a3d3218 100644 --- a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c +++ b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c @@ -23,6 +23,10 @@ static const unsigned int total_bytes = 10 * 1024 * 1024; static int expected_stg = 0xeB9F; +struct cb_opts { + const char *cc; +}; + static int settcpca(int fd, const char *tcp_ca) { int err; @@ -81,6 +85,14 @@ static void do_test(const char *tcp_ca, const struct bpf_map *sk_stg_map) close(fd); } +static int cc_cb(int fd, void *opts) +{ + struct cb_opts *cb_opts = (struct cb_opts *)opts; + + return setsockopt(fd, SOL_TCP, TCP_CONGESTION, cb_opts->cc, + strlen(cb_opts->cc) + 1); +} + static void test_cubic(void) { struct bpf_cubic *cubic_skel; @@ -171,9 +183,13 @@ static void test_invalid_license(void) static void test_dctcp_fallback(void) { int err, lfd = -1, cli_fd = -1, srv_fd = -1; - struct network_helper_opts opts = { + struct cb_opts cb_opts = { .cc = "cubic", }; + struct network_helper_opts opts = { + .post_socket_cb = cc_cb, + .cb_opts = &cb_opts, + }; struct bpf_dctcp *dctcp_skel; struct bpf_link *link = NULL; char srv_cc[16];