From nobody Wed Sep 17 19:38:03 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 00F542E8B76 for ; Thu, 21 Aug 2025 08:55:37 +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=pHdFCpsdzX1nI+hqNA6aHKQKkQ/KOK6Ik7gXyM8I4Qjs87nFkn2snlXGjrIfqmRlf1nZxBepHNfHv6lBHJSBcbehJKgMwrEyxk31iJzzq3r5Zzk3XL3uSw1CMYu5y79E3xHQpSdMnkjmHk8NWrDyaUtQxoZQG4M2yy9tE2AvyNI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755766540; c=relaxed/simple; bh=jE+rR039P7YNxt3qVOAscCsiI8nZqCfrpxpOQGEr93Q=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ToUdeFAro41ewRoPq6QmpwBHxLZTfj/LVq2S9l0daGgXJWRJKwlmcByXR2haS/ftukrJNV7tvqai3KjyLThrCYdexXY07HUaBe9E0lWMby0g5Al4rXLmNGUYWn8spQR1p4L8ucJ9RBvh70jakOnDDKfcXxWg3Nf5U6qiecccvPk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=S5/dSZ5G; 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="S5/dSZ5G" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E3E37C113CF; Thu, 21 Aug 2025 08:55:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1755766537; bh=jE+rR039P7YNxt3qVOAscCsiI8nZqCfrpxpOQGEr93Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=S5/dSZ5G3H+EsD75I0jGEFg3lKOt1rC7jrDQNGSbVKlUhjzVVBOsEVQdYJdX8CDqU LuHyoJU6RJ7be2PqglpgFGpnCeFk0x28TxHK9BBUlU0ERAbi72CzWNI2+Y5aJk1afY UE6pXtZOzb+y09yIpWmUAq2FYdMMEDBaoXU89E1sOtMjWMPbAheKbGl6s7LqpcAJ56 /ENIJFksgx1xWndxoxjxdSeuPkPpxCORp8my4qj33clUEGsn7NEq2Dyg9sF/Lsxn+u pVZReVX3L4MF8xcrYVPny87KLAqQvi+i8AfML5t3Ut3ITeVwz2n7s6v+AX0GCdGvIi FDVyCXpDRQOPQ== From: Geliang Tang To: mptcp@lists.linux.dev Cc: Geliang Tang Subject: [PATCH mptcp-next v2 06/10] selftests: mptcp: sockopt: add IP_FREEBIND tests Date: Thu, 21 Aug 2025 16:54:54 +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 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 | 27 +++++++++++++++++++ .../selftests/net/mptcp/mptcp_sockopt.sh | 6 +++-- 2 files changed, 31 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 25456e540cad..e9ef908dc270 100644 --- a/tools/testing/selftests/net/mptcp/mptcp_sockopt.c +++ b/tools/testing/selftests/net/mptcp/mptcp_sockopt.c @@ -233,12 +233,23 @@ static void do_setsockopt_bindtoifindex(int fd) perror("setsockopt(SO_BINDTOIFINDEX)"); } =20 +static void do_setsockopt_freebind(int fd) +{ + int optname =3D (pf =3D=3D AF_INET ? IP_FREEBIND : IPV6_FREEBIND); + 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)_FREEBIND)"); +} + static void do_setsockopts(int fd) { do_setsockopt_reuseaddr(fd); do_setsockopt_reuseport(fd); do_setsockopt_bindtodevice(fd); do_setsockopt_bindtoifindex(fd); + do_setsockopt_freebind(fd); } =20 static int sock_listen_mptcp(const char * const listenaddr, @@ -661,6 +672,20 @@ static void do_getsockopt_bindtoifindex(int fd) assert(ifindex =3D=3D get_ifindex(fd, "lo")); } =20 +static void do_getsockopt_freebind(int fd) +{ + int optname =3D (pf =3D=3D AF_INET ? IP_FREEBIND : IPV6_FREEBIND); + 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)_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); @@ -679,6 +704,8 @@ static void do_getsockopts(struct so_state *s, int fd, = size_t r, size_t w) do_getsockopt_bindtodevice(fd); =20 do_getsockopt_bindtoifindex(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 7f2effd82af8..193f4d4dc41a 100755 --- a/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh +++ b/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh @@ -271,7 +271,8 @@ do_mptcp_sockopt_tests() =20 for opt in "SOL_MPTCP" \ "SO_REUSEADDR" "SO_REUSEPORT" \ - "SO_BINDTODEVICE" "SO_BINDTOIFINDEX"; do + "SO_BINDTODEVICE" "SO_BINDTOIFINDEX" \ + "IP_FREEBIND"; do print_title "$opt sockopt v4" mptcp_lib_pr_ok mptcp_lib_result_pass "$opt sockopt v4" @@ -290,7 +291,8 @@ do_mptcp_sockopt_tests() =20 for opt in "SOL_MPTCP" \ "SO_REUSEADDR" "SO_REUSEPORT" \ - "SO_BINDTODEVICE" "SO_BINDTOIFINDEX"; do + "SO_BINDTODEVICE" "SO_BINDTOIFINDEX" \ + "IPV6_FREEBIND"; do print_title "$opt sockopt v6" mptcp_lib_pr_ok mptcp_lib_result_pass "$opt sockopt v6" --=20 2.48.1