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smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=NUjRqWZI; 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="NUjRqWZI" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 706D4C116B1; Tue, 19 Aug 2025 09:00:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1755594035; bh=gAnSShawOksymIf9itbH5poxQY94AOV5E34yjtagJu0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NUjRqWZIEyv3amWPgltI2QLg8n5TB1H2umCHtZcl64PLgqKWC2KFGA8QV0372TkBf +D7fTns3SeS7hANkltQVz4jU6kNOCw4L+7lLg6XkXhlS2ddKt3P1xjef8mbSAIWEhQ cPdvHEVaqbs97cmP3F3L2Q/LN42KDDahhxtvQYisCnGMPamHS4iUM/kv56wdUUs5pl HabS3rFvbfnbUCdxlcETrMQuQ+q3piLkDBDqi10oHsIM4+UboVCLE/Z9oUmBDVAK88 k715jJnxG0H8q+0ijtezrXEEWM2emkpQw0SxNsoDbf5ysQQN5N1u3ACXTehfwqLVrS QTlur2xumVQJg== From: Geliang Tang To: mptcp@lists.linux.dev Cc: Geliang Tang Subject: [PATCH mptcp-next 07/11] selftests: mptcp: sockopt: add IP_FREEBIND tests Date: Tue, 19 Aug 2025 17:00:13 +0800 Message-ID: <611145c75ad6579a523a03c4305139174c2f5ae4.1755592822.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 Add tests for IP_FREEBIND (IPv4) and IPV6_FREEBIND (IPv6): - Setsockopt helpers to enable FREEBIND - Getsockopt validation of the enabled state - Test integration for both address families - Script result reporting Signed-off-by: Geliang Tang --- .../selftests/net/mptcp/mptcp_sockopt.c | 37 +++++++++++++++++++ .../selftests/net/mptcp/mptcp_sockopt.sh | 8 ++++ 2 files changed, 45 insertions(+) diff --git a/tools/testing/selftests/net/mptcp/mptcp_sockopt.c b/tools/test= ing/selftests/net/mptcp/mptcp_sockopt.c index 3bef535ce981..1e7cacdebc72 100644 --- a/tools/testing/selftests/net/mptcp/mptcp_sockopt.c +++ b/tools/testing/selftests/net/mptcp/mptcp_sockopt.c @@ -241,6 +241,21 @@ static void do_setsockopt_tos(int fd) die_perror("setsockopt(IP_TOS)"); } =20 +static void do_setsockopt_freebind(int fd) +{ + int optname =3D IP_FREEBIND; + int level =3D SOL_IP; + int enable =3D 1; + + if (pf =3D=3D AF_INET6) { + level =3D SOL_IPV6; + optname =3D IPV6_FREEBIND; + } + + if (setsockopt(fd, level, optname, &enable, sizeof(enable))) + perror("setsockopt(IP_FREEBIND)"); +} + static void do_setsockopts(int fd) { do_setsockopt_reuseaddr(fd); @@ -248,6 +263,7 @@ static void do_setsockopts(int fd) do_setsockopt_bindtodevice(fd); do_setsockopt_bindtoifindex(fd); do_setsockopt_tos(fd); + do_setsockopt_freebind(fd); } =20 static int sock_listen_mptcp(const char * const listenaddr, @@ -704,6 +720,25 @@ static void do_getsockopt_tos(int fd) xerror("expect socklen_t =3D=3D -1"); } =20 +static void do_getsockopt_freebind(int fd) +{ + int optname =3D IP_FREEBIND; + int level =3D SOL_IP; + socklen_t len; + int enable; + + if (pf =3D=3D AF_INET6) { + level =3D SOL_IPV6; + optname =3D IPV6_FREEBIND; + } + + len =3D sizeof(enable); + if (getsockopt(fd, level, optname, &enable, &len)) + die_perror("getsockopt(IP_FREEBIND)"); + + 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); @@ -724,6 +759,8 @@ static void do_getsockopts(struct so_state *s, int fd, = size_t r, size_t w) do_getsockopt_bindtoifindex(fd); =20 do_getsockopt_tos(fd); + + do_getsockopt_freebind(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 9972012d08f6..b5054533872b 100755 --- a/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh +++ b/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh @@ -293,6 +293,10 @@ do_mptcp_sockopt_tests() mptcp_lib_pr_ok mptcp_lib_result_pass "IP_TOS sockopt v4" =20 + print_title "IP_FREEBIND sockopt v4" + mptcp_lib_pr_ok + mptcp_lib_result_pass "IP_FREEBIND sockopt v4" + ip netns exec "$ns_sbox" ./mptcp_sockopt -6 lret=3D$? =20 @@ -327,6 +331,10 @@ do_mptcp_sockopt_tests() print_title "IP_TOS sockopt v6" mptcp_lib_pr_ok mptcp_lib_result_pass "IP_TOS sockopt v6" + + print_title "IPV6_FREEBIND sockopt v6" + mptcp_lib_pr_ok + mptcp_lib_result_pass "IPV6_FREEBIND sockopt v6" } =20 run_tests() --=20 2.48.1