From nobody Wed Sep 17 19:38:05 2025 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 736212ED17C for ; Thu, 21 Aug 2025 08:55:32 +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=1755766532; cv=none; b=QdP718WJyqomIdPSsAMlIQtdp6qhAn6rJ6E2vhKGY0FCYTMsrRoAvPlxezn/8UHMNY3A1COzsnspjA0A6xzbnK9WSaKXu7GQUxBpDtzyDcAfr0WnwkGqDimgZhaNWOkMojPW8GN2BES2Lrib5ddU+Y8/cnGm7Bxr8hqd25s7exs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755766532; c=relaxed/simple; bh=S7Wm5LTpWey4533Hju75/uKS8sfaxxKDlRnQkeNo/OM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=h6DnLi4g14m09YaFFijr8ArKUWUiCIYAe6MskwD2Y7w+Pjj11nmvPnogP1xVPBbhPb/oYNcwZxdfRIx3aFSKBpxt7LE65/YF2chb9oNGE3z6bEb7TKiinMOhwjufhJrXgRk66Us64WuhG8Q8+36me5Yq1j1rRijcxopylvKLey8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Z7AqbKfP; 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="Z7AqbKfP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 08EBBC4CEEB; Thu, 21 Aug 2025 08:55:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1755766532; bh=S7Wm5LTpWey4533Hju75/uKS8sfaxxKDlRnQkeNo/OM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Z7AqbKfPID6YZZzxW5DdejrUx77C2ZK2ijeOWZ2Fd+B9vuJuHyTWPlA+P8ZbANRRW QEhR8Z5J4PwlCvC6EZm/j41/Mx0etNdfe0wrrB7/hqfd0GjrB4tgpzL+cwxYu2arXB S88j6PN0X9SY4EU+mMPFn4zptizvoL9TpLr7szq0qfNNRLdWYdbo6PshjnYOg2KBD0 8bYeBFVWeooTpoGtl7aVZa6FIGL7CYP0LVAQ8HTtH1R/zlZ06/XAfCnqv7QpLQIOKa f1nKK42u03vrck5g1dDnMLWeyGHjAnM4J6gcOXzoRdKj+6z33U1B+kbI5kg8HK0wAQ 2cbNHcFeoyxKQ== From: Geliang Tang To: mptcp@lists.linux.dev Cc: Geliang Tang Subject: [PATCH mptcp-next v2 03/10] selftests: mptcp: sockopt: add SO_REUSEPORT test Date: Thu, 21 Aug 2025 16:54:51 +0800 Message-ID: <21b4afc199156967b6d35ff4ff97cd038a35b800.1755680616.git.tanggeliang@kylinos.cn> X-Mailer: git-send-email 2.48.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Geliang Tang Implement comprehensive testing for the SO_REUSEPORT socket option: - Setsockopt and getsockopt helpers for SO_REUSEPORT - Verification of the set value - Integration into both client/server workflows - IPv4 and IPv6 test coverage Signed-off-by: Geliang Tang --- .../selftests/net/mptcp/mptcp_sockopt.c | 23 +++++++++++++++++++ .../selftests/net/mptcp/mptcp_sockopt.sh | 4 ++-- 2 files changed, 25 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/net/mptcp/mptcp_sockopt.c b/tools/test= ing/selftests/net/mptcp/mptcp_sockopt.c index a91709aeca06..816d71706f7d 100644 --- a/tools/testing/selftests/net/mptcp/mptcp_sockopt.c +++ b/tools/testing/selftests/net/mptcp/mptcp_sockopt.c @@ -190,9 +190,18 @@ static void do_setsockopt_reuseaddr(int fd) perror("setsockopt(SO_REUSEADDR)"); } =20 +static void do_setsockopt_reuseport(int fd) +{ + int one =3D 1; + + if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &one, sizeof(one))) + perror("setsockopt(SO_REUSEPORT)"); +} + static void do_setsockopts(int fd) { do_setsockopt_reuseaddr(fd); + do_setsockopt_reuseport(fd); } =20 static int sock_listen_mptcp(const char * const listenaddr, @@ -578,6 +587,18 @@ static void do_getsockopt_reuseaddr(int fd) assert(reuse =3D=3D 1); } =20 +static void do_getsockopt_reuseport(int fd) +{ + socklen_t len; + int reuse; + + len =3D sizeof(reuse); + if (getsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &reuse, &len)) + perror("getsockopt(SO_REUSEPORT)"); + + assert(reuse =3D=3D 1); +} + static void do_getsockopts(struct so_state *s, int fd, size_t r, size_t w) { do_getsockopt_mptcp_info(s, fd, w); @@ -590,6 +611,8 @@ static void do_getsockopts(struct so_state *s, int fd, = size_t r, size_t w) do_getsockopt_mptcp_full_info(s, fd); =20 do_getsockopt_reuseaddr(fd); + + do_getsockopt_reuseport(fd); } =20 static void connect_one_server(int fd, int pipefd) diff --git a/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh b/tools/tes= ting/selftests/net/mptcp/mptcp_sockopt.sh index da6c261275ec..1c357ed757d6 100755 --- a/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh +++ b/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh @@ -270,7 +270,7 @@ do_mptcp_sockopt_tests() fi =20 for opt in "SOL_MPTCP" \ - "SO_REUSEADDR"; do + "SO_REUSEADDR" "SO_REUSEPORT"; do print_title "$opt sockopt v4" mptcp_lib_pr_ok mptcp_lib_result_pass "$opt sockopt v4" @@ -288,7 +288,7 @@ do_mptcp_sockopt_tests() fi =20 for opt in "SOL_MPTCP" \ - "SO_REUSEADDR"; do + "SO_REUSEADDR" "SO_REUSEPORT"; do print_title "$opt sockopt v6" mptcp_lib_pr_ok mptcp_lib_result_pass "$opt sockopt v6" --=20 2.48.1