From patchwork Tue Nov 12 19:18:33 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Matthieu Baerts (NGI0)" X-Patchwork-Id: 13872859 X-Patchwork-Delegate: kuba@kernel.org 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 CF852219E3E; Tue, 12 Nov 2024 19:18:53 +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=1731439133; cv=none; b=LBSXLQW0Rqt0rsbDHmlWzGMLYRN0iUNtXdnFyOH0GW+CdWuopD6wBlnUKLL2sLB0Y0E6jYtrqmEjDBWpwrgWYk0jkPzCn4lwFzXfpXM8/cufZf4sH5TFzNvOMZMHVsdNmoVHVQ3IVjRJc4VbKqAEauaK2JV2Khs+giMopI4olMU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731439133; c=relaxed/simple; bh=FuoIfdQJv7ccjApa3N1JNOIaXeJa2+2IdI4Dq5YRvys=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=JtInWTgON9YOCcld2dnwn3meZ0n4kC2hthriG1mPU3r/uNSWtuKtq8WQ2Z8q+4U6pXbLm8fKSC4TpAjmqfYOAUCmK8LLmmIpaTyMdMyGYw4ULW5PoFnHTFrgYl4EhKKxfAScWFfNB0tGsp92l2DfGA0HxNelHeocgD3T72Sl/LU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=mRWzEqlv; 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="mRWzEqlv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5C114C4CED6; Tue, 12 Nov 2024 19:18:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1731439133; bh=FuoIfdQJv7ccjApa3N1JNOIaXeJa2+2IdI4Dq5YRvys=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=mRWzEqlvBUmydeu8Goq3XGOqaNoQTPm75uEC18Jetvvm65q7w+I4T1ds/YyzseUHi nj1qH5fiw8pmJ8nn+qhUip1MB8DMpsDJh1pY2ZJP2gMz1pCEjjhEjZ6im8rNizVqgi py5wikl2H3dogO+nKMapzkZ04uepO2CQh/mpvHLX3hbK8shQ5cMzMqv8Sn8nlul6JN fZn1+wYaXdf+leTbYRcv2eug4WQ7PfqvYGUSJZYo95InzVUItT6FXq4HranhItFJhf XlRfIYeP3SGhLe54RW71LV1dVYCVAfXSfapDaZ1Q51j5zkEAZhTzS3U7MNF2AscoAH KG/Oi9rHHsBKg== From: "Matthieu Baerts (NGI0)" Date: Tue, 12 Nov 2024 20:18:33 +0100 Subject: [PATCH net 1/3] mptcp: update local address flags when setting it Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241112-net-mptcp-misc-6-12-pm-v1-1-b835580cefa8@kernel.org> References: <20241112-net-mptcp-misc-6-12-pm-v1-0-b835580cefa8@kernel.org> In-Reply-To: <20241112-net-mptcp-misc-6-12-pm-v1-0-b835580cefa8@kernel.org> To: mptcp@lists.linux.dev, Mat Martineau , Geliang Tang , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Kishen Maloor Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, "Matthieu Baerts (NGI0)" , stable@vger.kernel.org, Geliang Tang X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2016; i=matttbe@kernel.org; h=from:subject:message-id; bh=7iaDiZC+u2/a+kvq6DT5vKQUNtAdNSAkppcjtytm4zs=; b=owEBbQKS/ZANAwAIAfa3gk9CaaBzAcsmYgBnM6oVOKxcsjilnaj6GBpYLjdp5CAxYxhOBZUdT ih/HgbjvniJAjMEAAEIAB0WIQToy4X3aHcFem4n93r2t4JPQmmgcwUCZzOqFQAKCRD2t4JPQmmg cx8XD/4o0fgUv37zQQhyT+E4OdgrXpapwrLHMg8YZA1EVeP9x/h00ZeXslZcv7ei+uJrHEbdEEa 7wQLTYmCn/67bmiqf7PNr0CRwZU7yG69DrS0mQQ34fyuwJ/Qta1Qh6LninftWx4r8MnAFQhHn2K F4AOPERMHXgTKiwOhMOM0WN4+PNDNTQZOvGNcVugQJ2QgvUU8ujHagB5RqnAxPEvoDnommJYZc9 wz5HKzsYLavWqSeSuUEJ60NMcZNzLnPgBCzNHjw22ShZQ8kJn9WTUSLoifldJJ54lO7/97pFs5o J9NdlXY/QeKJUYpP0PTBq93fxKELIEmdXdRBVlFHJ+dgLhxdgieSNsOXEDrIh8Oi3/VZqJqLpGC ajCbthSK2mqnMjyZ9mFVgu2aI3JMn+mG+uH0XW4qo/IfuVyouDHPyx6zT77s9ZVytCgUGNDhigz KioeILf4Mhi9SKTQ8ZF/AbrFCiGQWy82DUS2MhvXMaugoMdZ4+BYs0GHFobACQTiAEIkS34PiRy QpIA2kf4NEZWSJu8jghVhmM8h/nNfGVtsgNWzQqBrLN6n60D+kiNKReUihmcw4y+zjyL4iKLNcR 0DI6xtyYamU9+StiMY2k1d4POLeLXPmTaW+jIY90W7LRCQFxiAC+8uKlTnXSd6Vk/21cJCWszxK H7Kga7PB0mYeiYQ== X-Developer-Key: i=matttbe@kernel.org; a=openpgp; fpr=E8CB85F76877057A6E27F77AF6B7824F4269A073 X-Patchwork-Delegate: kuba@kernel.org From: Geliang Tang Just like in-kernel pm, when userspace pm does set_flags, it needs to send out MP_PRIO signal, and also modify the flags of the corresponding address entry in the local address list. This patch implements the missing logic. Traverse all address entries on userspace_pm_local_addr_list to find the local address entry, if bkup is true, set the flags of this entry with FLAG_BACKUP, otherwise, clear FLAG_BACKUP. Fixes: 892f396c8e68 ("mptcp: netlink: issue MP_PRIO signals from userspace PMs") Cc: stable@vger.kernel.org Signed-off-by: Geliang Tang Reviewed-by: Matthieu Baerts (NGI0) Signed-off-by: Matthieu Baerts (NGI0) --- net/mptcp/pm_userspace.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/net/mptcp/pm_userspace.c b/net/mptcp/pm_userspace.c index 56dfea9862b7b24dd0eaa8bbedcf22a7f6829ccf..3f888bfe1462ee3c75a3fb6eefe29cb712471410 100644 --- a/net/mptcp/pm_userspace.c +++ b/net/mptcp/pm_userspace.c @@ -560,6 +560,7 @@ int mptcp_userspace_pm_set_flags(struct sk_buff *skb, struct genl_info *info) struct nlattr *token = info->attrs[MPTCP_PM_ATTR_TOKEN]; struct nlattr *attr = info->attrs[MPTCP_PM_ATTR_ADDR]; struct net *net = sock_net(skb->sk); + struct mptcp_pm_addr_entry *entry; struct mptcp_sock *msk; int ret = -EINVAL; struct sock *sk; @@ -601,6 +602,17 @@ int mptcp_userspace_pm_set_flags(struct sk_buff *skb, struct genl_info *info) if (loc.flags & MPTCP_PM_ADDR_FLAG_BACKUP) bkup = 1; + spin_lock_bh(&msk->pm.lock); + list_for_each_entry(entry, &msk->pm.userspace_pm_local_addr_list, list) { + if (mptcp_addresses_equal(&entry->addr, &loc.addr, false)) { + if (bkup) + entry->flags |= MPTCP_PM_ADDR_FLAG_BACKUP; + else + entry->flags &= ~MPTCP_PM_ADDR_FLAG_BACKUP; + } + } + spin_unlock_bh(&msk->pm.lock); + lock_sock(sk); ret = mptcp_pm_nl_mp_prio_send_ack(msk, &loc.addr, &rem.addr, bkup); release_sock(sk);