From patchwork Mon Nov 18 18:27:21 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: 13878948 X-Patchwork-Delegate: matthieu.baerts@tessares.net 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 E19C81DED55; Mon, 18 Nov 2024 18:27:48 +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=1731954469; cv=none; b=gzp+SbOP/nPcaPezwCNZ9g6qi7/zdlUia5MpkfymztHAbjw+ymYilU3QcXE13U7k27Z7UUexNVUX5/prRpNSAXLnxhjbRKyOUkLDw13J4ak0v46n1FSEETKS8HtZu4VSBXyHmEpPpxnxzYfaDFCOgUv0tw7Pf0VPI2VehqwDj14= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731954469; c=relaxed/simple; bh=oiVQNKFq0gEyMzWsr5z5leGv6yB3xSPIZROm0rpJ+nY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=GgctasONJy3UcLlmdygSz1OdmxVXFyx52+lr7RRTttIK14bNy5q6aHKwvyEBHxZIdmnOd1RSfTjQuAlrcPvqhqajZ/PMfDRbnHEU7VsaG9oY9WSa0h59pIjG7R99wn6DhWKuwIuIWUIWTVzuOpjf1W9qLhQZvohVmMjHlFEpQnI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=XL51Kp4Q; 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="XL51Kp4Q" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9E249C4CEDA; Mon, 18 Nov 2024 18:27:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1731954468; bh=oiVQNKFq0gEyMzWsr5z5leGv6yB3xSPIZROm0rpJ+nY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XL51Kp4QoULk+EvhwGla5CxAYb8SgSiT4xD7rRsnhdNpxZeW1G8EtOBs8Nkbzpq4R OF2bd6Si/Pn6j6wOBWwNFqrQkxsY1ZJYdoWoT6si2Zrsgx71WC6jX0pi4lZW/1m3QD u8fB2p8UpBziM4SCxqUWkuEjUz9tY/Pp1jyQ5Ax0Lr7hlWovbH9QmegJ0LyCEVozBs Cr1qHrLTSV2k7sG7HOEN5VRYWleJKja5IMls61LtH8V32tE9d7f/BuM557qJsWQQcy svObap53Gr7pGUrv45ZmuzX4IvlPe8TsOW72cRmB9Da9Jvjc9E7fMipx/STu/6XAVB 8mOrT5CZ3QKKg== From: "Matthieu Baerts (NGI0)" To: mptcp@lists.linux.dev, stable@vger.kernel.org, gregkh@linuxfoundation.org Cc: Geliang Tang , sashal@kernel.org, Matthieu Baerts , Jakub Kicinski Subject: [PATCH 6.6.y 3/6] mptcp: update local address flags when setting it Date: Mon, 18 Nov 2024 19:27:21 +0100 Message-ID: <20241118182718.3011097-11-matttbe@kernel.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20241118182718.3011097-8-matttbe@kernel.org> References: <20241118182718.3011097-8-matttbe@kernel.org> Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2411; i=matttbe@kernel.org; h=from:subject; bh=ZEnmqhcd9qYrLaa0Wh2id9efvACa+gyIat1FkDDs3dY=; b=owEBbQKS/ZANAwAIAfa3gk9CaaBzAcsmYgBnO4cGh++17SLZNwBDlDwCKZG39FSv28Jh1rk2h r1ZkCdvrxGJAjMEAAEIAB0WIQToy4X3aHcFem4n93r2t4JPQmmgcwUCZzuHBgAKCRD2t4JPQmmg c4+HEADn7qrsQDN8g7Ezj+z/l00WO+dUQuIdFpW36hEa13OCFuaQTehPtoEMgqgU4/DPbOX6sN5 RZzxXuBL305ZvqsKzw+HfeEA2Q4m6TsrJ55Q6E9TEcQiR8g706UqktbanN1rMK+EW6kDk7mpFbv cbyzDiLD9neDIt1Rw8sfQx5rz+Vq0T8LNpF8fjU/tvBlLaqytpxZ3zJW4ytZHLacpp0i7oGGg90 QIjoVqpiDcU5Z3mv8TVJFV6/tcC3W9W6FXT9eBGT5r9Jv9S4Crw6ifVz+TtmHMGmhV2iD/gjTle JB+hErDPMMryr06aBS/l1gM975BvFTcQM/Y1oBUkk+nIuondZI063zaUfR82mA5jjKPO5UIchN6 2F4bO+C2S5PLYdho6iSEDt0O4jnXuwhz4eHyuX7f1E6jmqr96RLPMEwWPCpx0Emu0n9X6CjWi4t OlVWJfLMi4uDkK7+1pCHEoED1UMxVhXGjUKDRp/Lry4CrRaq2ZWND6aQQItQgUdPVMRYRrHsmWA KjVVev1t0smGPTAEBvUqZYwfVzKnEp9srxVHKjlH40NmfklmsEMZNkb2mZRDtZ1xgH1eiJlxEp8 5SzhsC6wufiqkQucZ/d6mHq+ybGKUlcg/NBBj3htFdy4p1+Fn3BRlXvpo/cejEKTqlNwQxn3+iR cz5W8wdSbV16/lw== X-Developer-Key: i=matttbe@kernel.org; a=openpgp; fpr=E8CB85F76877057A6E27F77AF6B7824F4269A073 From: Geliang Tang commit e0266319413d5d687ba7b6df7ca99e4b9724a4f2 upstream. 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) Link: https://patch.msgid.link/20241112-net-mptcp-misc-6-12-pm-v1-1-b835580cefa8@kernel.org Signed-off-by: Jakub Kicinski [ Conflicts in pm_userspace.c, because commit 6a42477fe449 ("mptcp: update set_flags interfaces"), is not in this version, and causes too many conflicts when backporting it. The same code can still be added at the same place, before sending the ACK. ] 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 23e362c11801..e268f61d8eb0 100644 --- a/net/mptcp/pm_userspace.c +++ b/net/mptcp/pm_userspace.c @@ -563,6 +563,7 @@ int mptcp_userspace_pm_set_flags(struct net *net, struct nlattr *token, struct mptcp_pm_addr_entry *loc, struct mptcp_pm_addr_entry *rem, u8 bkup) { + struct mptcp_pm_addr_entry *entry; struct mptcp_sock *msk; int ret = -EINVAL; struct sock *sk; @@ -583,6 +584,17 @@ int mptcp_userspace_pm_set_flags(struct net *net, struct nlattr *token, rem->addr.family == AF_UNSPEC) goto set_flags_err; + 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);