From patchwork Wed Nov 22 15:59:18 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxim Galaganov X-Patchwork-Id: 13465186 Received: from fallback24.i.mail.ru (fallback24.i.mail.ru [79.137.243.78]) (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 15CC824B35 for ; Wed, 22 Nov 2023 16:46:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=internet.ru Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=internet.ru Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=internet.ru header.i=@internet.ru header.b="IUQuzQKV"; dkim=pass (2048-bit key) header.d=internet.ru header.i=@internet.ru header.b="FA4k+jIi" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=internet.ru; s=mail4; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:From:Subject:Content-Type:Content-Transfer-Encoding:To:Cc; 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Received: by smtpng1.m.smailru.net with esmtpa (envelope-from ) id 1r5pdb-0002rH-AS; Wed, 22 Nov 2023 18:59:39 +0300 From: Maxim Galaganov To: mptcp@lists.linux.dev Cc: Maxim Galaganov Subject: [PATCH mptcp-next 1/2] mptcp: sockopt: support IP_LOCAL_PORT_RANGE and IP_BIND_ADDRESS_NO_PORT Date: Wed, 22 Nov 2023 18:59:18 +0300 Message-ID: <20231122155919.11393-2-max@internet.ru> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231122155919.11393-1-max@internet.ru> References: <20231122155919.11393-1-max@internet.ru> Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Mailru-Src: smtp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eAau8CL7WIMRKs4sN3D3tLDjz0dLbV79QFUyzQ2Ujvy7cMT6pYYqY16iZVKkSc3dCLJ7zSJH7+u4VD18S7Vl4ZUrpaVfd2+vE6kuoey4m4VkSEu530nj6fImhcD4MUrOEAnl0W826KZ9Q+tr5ycPtXkTV4k65bRjmOUUP8cvGozZ33TWg5HZplvhhXbhDGzqmQDTd6OAevLeAnq3Ra9uf7zvY2zzsIhlcp/Y7m53TZgf2aB4JOg4gkr2biojGZhPsaRkbblSTS3KUsd8Pg== X-Mailru-Sender: 689FA8AB762F7393590D8C940224AE334D974532C77D78A04506EB52D28E360FE94AC9D29F4E5226FD262907200E8C52FB559BB5D741EB96C728B2FC74FAA16AD7A14DD9E34ECE7467EA787935ED9F1B X-Mras: Ok X-7564579A: 78E4E2B564C1792B X-77F55803: 6242723A09DB00B4C412E14AEF4742E1D915F33BAFA678CC5A0CB2ECDC47A2F3049FFFDB7839CE9E432D8BDF4FB0405F438198C2DD497370733732B143699E45BC136391F456C3FB X-7FA49CB5: 0D63561A33F958A513372EFACD8ECAF76525AA74018445F6EF6F2C7944D113D5CACD7DF95DA8FC8BD5E8D9A59859A8B6A096F61ED9298604 X-D57D3AED: 3ZO7eAau8CL7WIMRKs4sN3D3tLDjz0dLbV79QFUyzQ2Ujvy7cMT6pYYqY16iZVKkSc3dCLJ7zSJH7+u4VD18S7Vl4ZUrpaVfd2+vE6kuoey4m4VkSEu530nj6fImhcD4MUrOEAnl0W826KZ9Q+tr5xhPKz0ZEsZ5k6NOOPWz5QAiZSCXKGQRq3/7KxbCLSB2ESzQkaOXqCBFZPLWFrEGlV1shfWe2EVcxl5toh0c/aCGOghz/frdRhzMe95NxDFdjNtV51DQSTBn4UV4nD80eQ== X-Mailru-MI: C000000000000800 X-Mras: Ok Support for IP_BIND_ADDRESS_NO_PORT sockopt was introduced in 90c337da1524 ("inet: add IP_BIND_ADDRESS_NO_PORT to overcome bind(0) limitations"). Recently ca571e2eb7eb ("inet: move inet->bind_address_no_port to inet->inet_flags") allowed its value to be accessed without locking the socket. Support for (newer) IP_LOCAL_PORT_RANGE sockopt was introduced in 91d0b78c5177 ("inet: Add IP_LOCAL_PORT_RANGE socket option"). In the same series a selftest was added in ae5439658cce ("selftests/net: Cover the IP_LOCAL_PORT_RANGE socket option"). This selftest also covers the IP_BIND_ADDRESS_NO_PORT sockopt. This patch enables getsockopt()/setsockopt() on MPTCP sockets for these socket options, syncing set values to subflows in sync_socket_options(). Ephemeral port range is synced to subflows, enabling NAT usecase described in 91d0b78c5177. Signed-off-by: Maxim Galaganov --- net/mptcp/sockopt.c | 29 ++++++++++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-) diff --git a/net/mptcp/sockopt.c b/net/mptcp/sockopt.c index cabe856b2a45..53f27354412f 100644 --- a/net/mptcp/sockopt.c +++ b/net/mptcp/sockopt.c @@ -440,6 +440,8 @@ static bool mptcp_supported_sockopt(int level, int optname) /* should work fine */ case IP_FREEBIND: case IP_TRANSPARENT: + case IP_BIND_ADDRESS_NO_PORT: + case IP_LOCAL_PORT_RANGE: /* the following are control cmsg related */ case IP_PKTINFO: @@ -455,7 +457,6 @@ static bool mptcp_supported_sockopt(int level, int optname) /* common stuff that need some love */ case IP_TOS: case IP_TTL: - case IP_BIND_ADDRESS_NO_PORT: case IP_MTU_DISCOVER: case IP_RECVERR: @@ -688,6 +689,7 @@ static int mptcp_setsockopt_sol_ip_set_transparent(struct mptcp_sock *msk, int o { struct sock *sk = (struct sock *)msk; struct sock *ssk; + bool slow; int err; err = ip_setsockopt(sk, SOL_IP, optname, optval, optlen); @@ -710,6 +712,16 @@ static int mptcp_setsockopt_sol_ip_set_transparent(struct mptcp_sock *msk, int o inet_assign_bit(TRANSPARENT, ssk, inet_test_bit(TRANSPARENT, sk)); break; + case IP_BIND_ADDRESS_NO_PORT: + inet_assign_bit(BIND_ADDRESS_NO_PORT, ssk, + inet_test_bit(BIND_ADDRESS_NO_PORT, sk)); + break; + case IP_LOCAL_PORT_RANGE: + slow = lock_sock_fast(ssk); + inet_sk(ssk)->local_port_range.lo = inet_sk(sk)->local_port_range.lo; + inet_sk(ssk)->local_port_range.hi = inet_sk(sk)->local_port_range.hi; + unlock_sock_fast(ssk, slow); + break; default: release_sock(sk); WARN_ON_ONCE(1); @@ -755,6 +767,8 @@ static int mptcp_setsockopt_v4(struct mptcp_sock *msk, int optname, switch (optname) { case IP_FREEBIND: case IP_TRANSPARENT: + case IP_BIND_ADDRESS_NO_PORT: + case IP_LOCAL_PORT_RANGE: return mptcp_setsockopt_sol_ip_set_transparent(msk, optname, optval, optlen); case IP_TOS: return mptcp_setsockopt_v4_set_tos(msk, optname, optval, optlen); @@ -1346,10 +1360,20 @@ static int mptcp_getsockopt_v4(struct mptcp_sock *msk, int optname, char __user *optval, int __user *optlen) { struct sock *sk = (void *)msk; + bool slow; + int val; switch (optname) { case IP_TOS: return mptcp_put_int_option(msk, optval, optlen, READ_ONCE(inet_sk(sk)->tos)); + case IP_BIND_ADDRESS_NO_PORT: + return mptcp_put_int_option(msk, optval, optlen, + inet_test_bit(BIND_ADDRESS_NO_PORT, sk)); + case IP_LOCAL_PORT_RANGE: + slow = lock_sock_fast(sk); + val = inet_sk(sk)->local_port_range.hi << 16 | inet_sk(sk)->local_port_range.lo; + unlock_sock_fast(sk, slow); + return mptcp_put_int_option(msk, optval, optlen, val); } return -EOPNOTSUPP; @@ -1450,6 +1474,9 @@ static void sync_socket_options(struct mptcp_sock *msk, struct sock *ssk) inet_assign_bit(TRANSPARENT, ssk, inet_test_bit(TRANSPARENT, sk)); inet_assign_bit(FREEBIND, ssk, inet_test_bit(FREEBIND, sk)); + inet_assign_bit(BIND_ADDRESS_NO_PORT, ssk, inet_test_bit(BIND_ADDRESS_NO_PORT, sk)); + inet_sk(ssk)->local_port_range.lo = inet_sk(sk)->local_port_range.lo; + inet_sk(ssk)->local_port_range.hi = inet_sk(sk)->local_port_range.hi; } void mptcp_sockopt_sync_locked(struct mptcp_sock *msk, struct sock *ssk) From patchwork Wed Nov 22 15:59:19 2023 Content-Type: text/plain; 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Received: by smtpng1.m.smailru.net with esmtpa (envelope-from ) id 1r5pdb-0002rH-Q6; Wed, 22 Nov 2023 18:59:40 +0300 From: Maxim Galaganov To: mptcp@lists.linux.dev Cc: Maxim Galaganov Subject: [PATCH mptcp-next 2/2] selftests/net: add MPTCP coverage for IP_LOCAL_PORT_RANGE Date: Wed, 22 Nov 2023 18:59:19 +0300 Message-ID: <20231122155919.11393-3-max@internet.ru> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231122155919.11393-1-max@internet.ru> References: <20231122155919.11393-1-max@internet.ru> Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Mailru-Src: smtp X-7564579A: EEAE043A70213CC8 X-77F55803: 4F1203BC0FB41BD9FEA8E122FE2215F5F9A7F26A9461D4801668790ACF3513421867C24CE74E72BB5FE18E9CBFBE7C0749595627237A030DB35728C0F0432A41F07C4114B69F52B92890F9C47E136152 X-7FA49CB5: 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 X-C1DE0DAB: 0D63561A33F958A553BB7EF17E3C77E2E22301315A8F93B2DCC402196A0CE6E1F87CCE6106E1FC07E67D4AC08A07B9B01DAA61796BF5227B9C5DF10A05D560A950611B66E3DA6D700B0A020F03D25A09D2DCF9CF1F528DBCCB5012B2E24CD356 X-C8649E89: 1C3962B70DF3F0ADE00A9FD3E00BEEDF77DD89D51EBB7742D3581295AF09D3DF87807E0823442EA2ED31085941D9CD0AF7F820E7B07EA4CF6789EC4FCDEBBC101C87FB8AA82DB67D49D0BF2AAB791813447DA6E5D4A68408C69CBF34C6AF1FF588AD3775A6B0C834C65EA8E46CD9AE619801BC1E0607620340B08DDBC5CE87D002C26D483E81D6BEA5ED0C00A4B096A39697699CFF2E0C50CC2E138FFB4ACBED X-D57D3AED: 3ZO7eAau8CL7WIMRKs4sN3D3tLDjz0dLbV79QFUyzQ2Ujvy7cMT6pYYqY16iZVKkSc3dCLJ7zSJH7+u4VD18S7Vl4ZUrpaVfd2+vE6kuoey4m4VkSEu530nj6fImhcD4MUrOEAnl0W826KZ9Q+tr5ycPtXkTV4k65bRjmOUUP8cvGozZ33TWg5HZplvhhXbhDGzqmQDTd6OAevLeAnq3Ra9uf7zvY2zzsIhlcp/Y7m53TZgf2aB4JOg4gkr2biojGZhPsaRkbblfKTVpvF6JdA== X-Mailru-Sender: 689FA8AB762F7393590D8C940224AE334D974532C77D78A0ACCA6F5B7CEB67ABE94AC9D29F4E5226FD262907200E8C52FB559BB5D741EB96C728B2FC74FAA16AD7A14DD9E34ECE7467EA787935ED9F1B X-Mras: Ok X-7564579A: 646B95376F6C166E X-77F55803: 6242723A09DB00B4C412E14AEF4742E1D915F33BAFA678CC53B93FBE07102DFC049FFFDB7839CE9E432D8BDF4FB0405F83E25376A5BAB7ED39525C1B8DEA9C82BC136391F456C3FB X-7FA49CB5: 0D63561A33F958A513372EFACD8ECAF7D48813DFF84AA9C4003398D44B157586CACD7DF95DA8FC8BD5E8D9A59859A8B653555A62B7CAD886 X-D57D3AED: 3ZO7eAau8CL7WIMRKs4sN3D3tLDjz0dLbV79QFUyzQ2Ujvy7cMT6pYYqY16iZVKkSc3dCLJ7zSJH7+u4VD18S7Vl4ZUrpaVfd2+vE6kuoey4m4VkSEu530nj6fImhcD4MUrOEAnl0W826KZ9Q+tr5xhPKz0ZEsZ5k6NOOPWz5QAiZSCXKGQRq3/7KxbCLSB2ESzQkaOXqCBFZPLWFrEGlV1shfWe2EVcxl5toh0c/aCGOghz/frdRhzMe95NxDFdjNtV51DQSTBn4UV4nD80eQ== X-Mailru-MI: C000000000000800 X-Mras: Ok Since previous commit, MPTCP has support for IP_BIND_ADDRESS_NO_PORT and IP_LOCAL_PORT_RANGE sockopts. Add ip4_mptcp and ip6_mptcp fixture variants to ip_local_port_range selftest to provide selftest coverage for these sockopts. Signed-off-by: Maxim Galaganov --- tools/testing/selftests/net/ip_local_port_range.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/tools/testing/selftests/net/ip_local_port_range.c b/tools/testing/selftests/net/ip_local_port_range.c index 75e3fdacdf73..0f217a1cc837 100644 --- a/tools/testing/selftests/net/ip_local_port_range.c +++ b/tools/testing/selftests/net/ip_local_port_range.c @@ -146,6 +146,12 @@ FIXTURE_VARIANT_ADD(ip_local_port_range, ip4_stcp) { .so_protocol = IPPROTO_SCTP, }; +FIXTURE_VARIANT_ADD(ip_local_port_range, ip4_mptcp) { + .so_domain = AF_INET, + .so_type = SOCK_STREAM, + .so_protocol = IPPROTO_MPTCP, +}; + FIXTURE_VARIANT_ADD(ip_local_port_range, ip6_tcp) { .so_domain = AF_INET6, .so_type = SOCK_STREAM, @@ -164,6 +170,12 @@ FIXTURE_VARIANT_ADD(ip_local_port_range, ip6_stcp) { .so_protocol = IPPROTO_SCTP, }; +FIXTURE_VARIANT_ADD(ip_local_port_range, ip6_mptcp) { + .so_domain = AF_INET6, + .so_type = SOCK_STREAM, + .so_protocol = IPPROTO_MPTCP, +}; + TEST_F(ip_local_port_range, invalid_option_value) { __u16 val16;