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smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ltM9EIqY; 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="ltM9EIqY" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 25E42C116B1; Tue, 19 Aug 2025 09:00:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1755594043; bh=/x/jziq25RQCXehcntFgaQALn386mKczQ1osaeu4bT8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ltM9EIqYB1FfClziZTLkpuT2A0KJPQgco5Wltfq9Ne5XVlzPjV2WrtWEx3TNty/Uh k0830YgL+13vaKvGd8wyRk5NcEq52y0E937ACChNKtPozEAjSenfv4QTJxVO6eMgvU 3NdkE+DMQlev76srlj7akfpc8X1ATejttq0xPYxLS8CZyVVkmBmrTXyJUlfW22dNNV /6rBhOMhKxNh2riNL8lUkzmSwdx1ftCs/z3m5Q4YB5FkqHAUvYjF9qAB/wYReZDMTG ggmxkYW/aLcgaH2yvJwXkjWpt8Fw1hwV0SKc4/WCnIq+sAuqVUndYR0SB+qsi/OuAi V0497hisnEKfg== From: Geliang Tang To: mptcp@lists.linux.dev Cc: Geliang Tang Subject: [PATCH mptcp-next 11/11] selftests: mptcp: sockopt: add IPV6_V6ONLY test Date: Tue, 19 Aug 2025 17:00:17 +0800 Message-ID: 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 Add IPv6-specific testing for IPV6_V6ONLY: - Enables the option and verifies its state - Restricted to IPv6 sockets - Reports results in the test script Signed-off-by: Geliang Tang --- .../selftests/net/mptcp/mptcp_sockopt.c | 27 +++++++++++++++++++ .../selftests/net/mptcp/mptcp_sockopt.sh | 4 +++ 2 files changed, 31 insertions(+) diff --git a/tools/testing/selftests/net/mptcp/mptcp_sockopt.c b/tools/test= ing/selftests/net/mptcp/mptcp_sockopt.c index 3e2072869527..3d01cc20afb1 100644 --- a/tools/testing/selftests/net/mptcp/mptcp_sockopt.c +++ b/tools/testing/selftests/net/mptcp/mptcp_sockopt.c @@ -289,6 +289,15 @@ static void do_setsockopt_local_port_range(int fd) perror("setsockopt(IP_LOCAL_PORT_RANGE)"); } =20 +static void do_setsockopt_v6only(int fd) +{ + int v6only =3D 1; + + if (setsockopt(fd, SOL_IPV6, IPV6_V6ONLY, &v6only, + sizeof(v6only))) + perror("setsockopt(IPV6_V6ONLY)"); +} + static void do_setsockopts(int fd) { do_setsockopt_reuseaddr(fd); @@ -300,6 +309,9 @@ static void do_setsockopts(int fd) do_setsockopt_transparent(fd); do_setsockopt_bind_address_no_port(fd); do_setsockopt_local_port_range(fd); + + if (pf =3D=3D AF_INET6) + do_setsockopt_v6only(fd); } =20 static int sock_listen_mptcp(const char * const listenaddr, @@ -820,6 +832,18 @@ static void do_getsockopt_local_port_range(int fd) assert(port_range =3D=3D (31000 << 16 | 30000)); } =20 +static void do_getsockopt_v6only(int fd) +{ + socklen_t len; + int v6only; + + len =3D sizeof(v6only); + if (getsockopt(fd, SOL_IPV6, IPV6_V6ONLY, &v6only, &len)) + die_perror("getsockopt(IPV6_V6ONLY)"); + + assert(v6only =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); @@ -848,6 +872,9 @@ static void do_getsockopts(struct so_state *s, int fd, = size_t r, size_t w) do_getsockopt_bind_address_no_port(fd); =20 do_getsockopt_local_port_range(fd); + + if (pf =3D=3D AF_INET6) + do_getsockopt_v6only(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 a688917a13c1..6664f8f0733d 100755 --- a/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh +++ b/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh @@ -359,6 +359,10 @@ do_mptcp_sockopt_tests() print_title "IP_LOCAL_PORT_RANGE sockopt v6" mptcp_lib_pr_ok mptcp_lib_result_pass "IP_LOCAL_PORT_RANGE sockopt v6" + + print_title "IPV6_V6ONLY sockopt v6" + mptcp_lib_pr_ok + mptcp_lib_result_pass "IPV6_V6ONLY sockopt v6" } =20 run_tests() --=20 2.48.1