From nobody Mon Sep 16 18:52:18 2024 Received: from sender11-of-o51.zoho.eu (sender11-of-o51.zoho.eu [31.186.226.237]) (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 D2AED291C for ; Sun, 6 Nov 2022 15:24:45 +0000 (UTC) ARC-Seal: i=1; a=rsa-sha256; t=1667748272; cv=none; d=zohomail.eu; s=zohoarc; b=iMRKhJDGSF+0ztG9gaqJnbe/p2sKgM6XO3j+uGU1PzqWYR5t5W5i3xW4AvCBO+Ou67dfc2OA5zLEqkFdNGzbz4odjds/pmwXn5FPTj/yFA9NFgd2O69E0QPGleEV8JyFf4Ukh3I3QTjGKUUdZ0geCZKIITruBGWgE9L5/4UjBJM= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.eu; s=zohoarc; t=1667748272; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:To; bh=47KsXtqvgfdp5fHSeNYVlFXhTzq+vd4zu9jynPaG38k=; b=AI6S1QZ0B0d1DGLfQCSUHqJTOH7g5g5dygs7K2/imoB3egwP7BjGBVCuVjcohtOdU5s48NfytqnBGZgbReTcjHEcjVkLdGTEg5VH0IWUfnWXhvsG0dIaYclq5QuBV7BSvOrMS++Vxymf3LssyZc2MhebJzmWnPbKi5Crrh0A0gk= ARC-Authentication-Results: i=1; mx.zohomail.eu; dkim=pass header.i=shytyi.net; spf=pass smtp.mailfrom=dmytro@shytyi.net; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1667748272; s=hs; d=shytyi.net; i=dmytro@shytyi.net; h=From:From:To:To:Cc:Cc:Message-ID:Subject:Subject:Date:Date:In-Reply-To:References:MIME-Version:Content-Transfer-Encoding:Content-Type:Message-Id:Reply-To; bh=47KsXtqvgfdp5fHSeNYVlFXhTzq+vd4zu9jynPaG38k=; b=PNX7rIdE20eOFdXuKB6TR41IQ2qyOInj6MtcS8P85aBmvSPEmMl66z7Co1ml2xkC lTjnFLUOiupUXWkHsYRPTtuo86pA7D15Opg3+xduwCvn8LkvjJRb3QZPNDNZfFtMQcM LTM/AKKavZPwn9UKT7Y336Z8IXcRZvUYbkkzoalw= Received: from localhost.localdomain (vps-940813d4.vps.ovh.net [198.244.188.50]) by mx.zoho.eu with SMTPS id 1667748270672261.0089987436238; Sun, 6 Nov 2022 16:24:30 +0100 (CET) From: Dmytro Shytyi To: mptcp@lists.linux.dev Cc: Dmytro Shytyi , Benjamin Hesmans Message-ID: <20221106152411.655-2-dmytro@shytyi.net> Subject: [RFC PATCH mptcp-next v15 1/5] mptcp: introduce MSG_FASTOPEN flag Date: Sun, 6 Nov 2022 15:24:07 +0000 X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221106152411.655-1-dmytro@shytyi.net> References: <20221106152411.655-1-dmytro@shytyi.net> Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMailClient: External Content-Type: text/plain; charset="utf-8" In the following patches we will analyse the MSG_FASTOPEN flag in the mptcp_sendmsg() and invoke the MPTFO. Signed-of-by: Benjamin Hesmans Signed-off-by: Dmytro Shytyi --- net/mptcp/protocol.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 3196d2a350f9..f4247218fd1b 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -1704,17 +1704,14 @@ static int mptcp_sendmsg(struct sock *sk, struct ms= ghdr *msg, size_t len) int ret =3D 0; long timeo; =20 - /* we don't support FASTOPEN yet */ - if (msg->msg_flags & MSG_FASTOPEN) - return -EOPNOTSUPP; - /* silently ignore everything else */ - msg->msg_flags &=3D MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL; + msg->msg_flags &=3D MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL | MSG_FASTOPEN; =20 lock_sock(sk); =20 ssock =3D __mptcp_nmpc_socket(msk); - if (unlikely(ssock && inet_sk(ssock->sk)->defer_connect)) { + if (unlikely(ssock && (inet_sk(ssock->sk)->defer_connect || + msg->msg_flags & MSG_FASTOPEN))) { int copied_syn =3D 0; =20 ret =3D mptcp_sendmsg_fastopen(sk, ssock->sk, msg, len, &copied_syn); --=20 2.34.1