From nobody Wed Sep 17 19:38:45 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 365F6DDC3 for ; Tue, 12 Aug 2025 08:17:38 +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=1754986660; cv=none; b=tSpijWrbG5QNcU9GpET+abMlcRO2gBb3ZBEiOXVJhLPkzI+dgZevlHFO12FZbGjn+Ooxy7yW7xnly8B7fh9aScgW8cXjhV8QjNJNN8Xz/nEQLInZvYdmZkb1aaIrGyB4M1qgpzlzxwJPI7hYPI9FdsRYRHLtiKsy23CdH4W+MCE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754986660; c=relaxed/simple; bh=EWwOYyAoARdNML8jinH/T8wESmxc0RqStwQnE81qJzA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=H1QC2l+O29hcF2iQHsFpynLCnMToUc9mZKzlKnGP4mq55DeHFWkkCSYuX6BesgZfRAFUwwEaPolSsAD4qqGY5M3jS0RfQVOlXJGRswZgOa3db/hx6LzIKEJNRSDr/eE3acXslMjtp32jDXTuR6Ae5fhdHVGC/b1FQ6RzbGVgPxU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Yfl4yOlC; 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="Yfl4yOlC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 98C87C4CEF0; Tue, 12 Aug 2025 08:17:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1754986658; bh=EWwOYyAoARdNML8jinH/T8wESmxc0RqStwQnE81qJzA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Yfl4yOlCVZKtjbH81w78sY3zipjMGaz9Kx1+3RkyBWGInBzLIqdKbcU1MIotdlbXS krYs6CPach3iC5JaaQgZezahg7efQWAF81BC1zp2R9F7LyqkrAX5lCaifHcbIcJlFD 3tstTXepXTpq7K64nzYBQxwwDcA65NujztMATpaJiUY7XBPE9olSSv2cILr6qQpboz gThZLrEX9R5iV78KSGo2DJy6vUpmA6tFpLEItjoU5rINlKSesrHB5RMiYBMXMqJos4 McHx+XT21y+KDWC90tg8NJ0csCSWxWv+JT21mIf1F5Xu4uollVVR9jUCokARzgJaR2 9WsJLIdlc96zA== From: Geliang Tang To: mptcp@lists.linux.dev Cc: Geliang Tang Subject: [PATCH mptcp-next 5/6] mptcp: handle SOL_TCP options on all subflows Date: Tue, 12 Aug 2025 16:17:20 +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 Implement mptcp_setsockopt_sol_tcp_all_sf() helper to apply TCP socket options to all existing subflows. This ensures consistent configuration across every subflow in the MPTCP connection. Signed-off-by: Geliang Tang --- net/mptcp/sockopt.c | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) diff --git a/net/mptcp/sockopt.c b/net/mptcp/sockopt.c index 964131ef82d8..81cc24125c29 100644 --- a/net/mptcp/sockopt.c +++ b/net/mptcp/sockopt.c @@ -848,9 +848,9 @@ static int mptcp_setsockopt_first_sf_only(struct mptcp_= sock *msk, int level, return -EOPNOTSUPP; } =20 -static int mptcp_setsockopt_all_sf(struct mptcp_sock *msk, int level, - int optname, sockptr_t optval, - unsigned int optlen) +static int mptcp_setsockopt_sol_tcp_all_sf(struct mptcp_sock *msk, + int optname, sockptr_t optval, + unsigned int optlen) { struct mptcp_subflow_context *subflow; int ret =3D 0; @@ -858,13 +858,26 @@ static int mptcp_setsockopt_all_sf(struct mptcp_sock = *msk, int level, mptcp_for_each_subflow(msk, subflow) { struct sock *ssk =3D mptcp_subflow_tcp_sock(subflow); =20 - ret =3D tcp_setsockopt(ssk, level, optname, optval, optlen); + ret =3D tcp_setsockopt(ssk, SOL_TCP, optname, optval, optlen); if (ret) break; } return ret; } =20 +static int mptcp_setsockopt_all_sf(struct mptcp_sock *msk, int level, + int optname, sockptr_t optval, + unsigned int optlen) +{ + switch (level) { + case SOL_TCP: + return mptcp_setsockopt_sol_tcp_all_sf(msk, optname, + optval, optlen); + } + + return -EOPNOTSUPP; +} + static int mptcp_setsockopt_sol_tcp(struct mptcp_sock *msk, int optname, sockptr_t optval, unsigned int optlen) { --=20 2.48.1