From nobody Wed Sep 17 19:38:44 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 050672ECEBF for ; Thu, 21 Aug 2025 08:55:40 +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=1755766540; cv=none; b=m40eaOGvcEbIzxHou+r4bOxhKHsGC3yBq4Ilg4RWKMvx8iEqjDAZGIBGAGNXe0kwYkYZtCmnigFCLN1PWaoLXeyenTpma/l6iw9/V6UHgu/6RiwGcZ5RuISaxkdKzThB8EL7R7Ei1vGMxahQ88LQ/XQ3IrvYb08nTe+fzSHw3S8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755766540; c=relaxed/simple; bh=BwR/UP5rSl0j5/UjFQYOU1aGipgDYNIxSNSudrCHECk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=mQSyUBPsuPp0g0YwYZ7GKlykbHIsx7lP5HOQ4SSe5nJiGtc5fjZ6/0MbbpGn8OBHlQTEogX8OBEpPB7GnwhU2+JERF24sBDldNNpX5Ca6a6LSYTd6qXjZZNOO+uY/p14rwyaeO16rCXq6jS4g4BAtpjtVNpvQQ/C+Hpp/cUY0QY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=oYWZyo4m; 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="oYWZyo4m" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 20A9CC4CEEB; Thu, 21 Aug 2025 08:55:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1755766539; bh=BwR/UP5rSl0j5/UjFQYOU1aGipgDYNIxSNSudrCHECk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=oYWZyo4mGiRRNneWRs3HD9RYQeMwvcODIEqYWKeVf4QdxOJy2TgDLpce9m8RkIJkH rlM8ukw2bAbuAYU9vjasNK5YDxRKdJ/fMd5ohivklKaUBRY5ECmwxz20jZJCdzs4g9 eNOL1Kjfewso6vQC83uzagFfZJMQ+Ro3gmchS1Gai7JyK+LFGWHSWHepeyBx1bwAGL J2h8OUDcuTsT0EWxouTpKSmwgtUJ7TyQralZLGwk48hAx/HZm0gucBR2MW7jvGV4dy kFA6e1IBHFFHkICkdYs5EZhItN5kvLORNM4SzOEvyozlMDdR9CInjta/0LqdYq9W1M IUex04ztzpIgA== From: Geliang Tang To: mptcp@lists.linux.dev Cc: Geliang Tang Subject: [PATCH mptcp-next v2 07/10] selftests: mptcp: sockopt: add IP_TRANSPARENT tests Date: Thu, 21 Aug 2025 16:54:55 +0800 Message-ID: <648279116771957c9bf5ea1a86f04adb92e6488b.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 tests for transparent socket options: - IP_TRANSPARENT (IPv4) and IPV6_TRANSPARENT (IPv6) - Setsockopt and getsockopt helpers - State verification after setting - IPv4/IPv6 coverage in test script Signed-off-by: Geliang Tang --- .../selftests/net/mptcp/mptcp_sockopt.c | 27 +++++++++++++++++++ .../selftests/net/mptcp/mptcp_sockopt.sh | 4 +-- 2 files changed, 29 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 e9ef908dc270..ccc072005118 100644 --- a/tools/testing/selftests/net/mptcp/mptcp_sockopt.c +++ b/tools/testing/selftests/net/mptcp/mptcp_sockopt.c @@ -243,6 +243,16 @@ static void do_setsockopt_freebind(int fd) perror("setsockopt(IP(V6)_FREEBIND)"); } =20 +static void do_setsockopt_transparent(int fd) +{ + int optname =3D (pf =3D=3D AF_INET ? IP_TRANSPARENT : IPV6_TRANSPARENT); + int level =3D (pf =3D=3D AF_INET ? SOL_IP : SOL_IPV6); + int enable =3D 1; + + if (setsockopt(fd, level, optname, &enable, sizeof(enable))) + perror("setsockopt(IP(V6)_TRANSPARENT)"); +} + static void do_setsockopts(int fd) { do_setsockopt_reuseaddr(fd); @@ -250,6 +260,7 @@ static void do_setsockopts(int fd) do_setsockopt_bindtodevice(fd); do_setsockopt_bindtoifindex(fd); do_setsockopt_freebind(fd); + do_setsockopt_transparent(fd); } =20 static int sock_listen_mptcp(const char * const listenaddr, @@ -686,6 +697,20 @@ static void do_getsockopt_freebind(int fd) assert(enable =3D=3D 1); } =20 +static void do_getsockopt_transparent(int fd) +{ + int optname =3D (pf =3D=3D AF_INET ? IP_TRANSPARENT : IPV6_TRANSPARENT); + int level =3D (pf =3D=3D AF_INET ? SOL_IP : SOL_IPV6); + socklen_t len; + int enable; + + len =3D sizeof(enable); + if (getsockopt(fd, level, optname, &enable, &len)) + die_perror("getsockopt(IP(V6)_TRANSPARENT)"); + + assert(enable =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); @@ -706,6 +731,8 @@ static void do_getsockopts(struct so_state *s, int fd, = size_t r, size_t w) do_getsockopt_bindtoifindex(fd); =20 do_getsockopt_freebind(fd); + + do_getsockopt_transparent(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 193f4d4dc41a..da02769fbb2b 100755 --- a/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh +++ b/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh @@ -272,7 +272,7 @@ do_mptcp_sockopt_tests() for opt in "SOL_MPTCP" \ "SO_REUSEADDR" "SO_REUSEPORT" \ "SO_BINDTODEVICE" "SO_BINDTOIFINDEX" \ - "IP_FREEBIND"; do + "IP_FREEBIND" "IP_TRANSPARENT"; do print_title "$opt sockopt v4" mptcp_lib_pr_ok mptcp_lib_result_pass "$opt sockopt v4" @@ -292,7 +292,7 @@ do_mptcp_sockopt_tests() for opt in "SOL_MPTCP" \ "SO_REUSEADDR" "SO_REUSEPORT" \ "SO_BINDTODEVICE" "SO_BINDTOIFINDEX" \ - "IPV6_FREEBIND"; do + "IPV6_FREEBIND" "IPV6_TRANSPARENT"; do print_title "$opt sockopt v6" mptcp_lib_pr_ok mptcp_lib_result_pass "$opt sockopt v6" --=20 2.48.1