From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-vk1-f177.google.com (mail-vk1-f177.google.com [209.85.221.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2881333689D for ; Sat, 12 Sep 2026 01:32:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.177 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789176761; cv=none; b=LR+CfJokW11LtW73+En+ENu53dL4/7qsm0s6KziCI6aL94jeX4gN0ZEsi/6XCM+EECGLWAnwmEYcYWmjPl7qf6zZLHTwpR7xlpYv2G7CKg9YxFbxI6v5Lfn+F1yiPezybVCZhFtqLS6PyTGRR0nOv0YtmFlaygoz7vFM5rwHDkc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789176761; c=relaxed/simple; bh=iO5IsBdVcKSJKd6NiDoXmZ5UkiJqIiE+p+VNxy8J4R4=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=tOarMhaaHHfl53kAjGbokB70k+edkVHPYW0EjuFKyH/cCRzfkDK90Hc+8QBS2qCAVvumvL5ONy37C7iG4pfdb/b5P2Jx6s3ZmDyzocxyARg9g+4SL2ue3A6MY/lTdMHUMhEu+b7P27vdswYdEpIv2FuLGikQ/NB/SaWkEKyHY5g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=Xd8xc5/c; arc=none smtp.client-ip=209.85.221.177 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Xd8xc5/c" Received: by mail-vk1-f177.google.com with SMTP id 71dfb90a1353d-5c66eefc868so1652354e0c.3 for ; Fri, 11 Sep 2026 18:32:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1789176758; x=1789781558; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to:content-type; bh=ZvfD/NIMhAY/sAhVFEMBC5cGXIs+97HZdpNLEZY0qTk=; b=Xd8xc5/cMoVy5cXn0lyTLg6FbvW3KammyCP2h7zw7rH+6Hsa8boFJtHmzWAdJusOqH qj6Ry3VEYCYFcA8Udv6Rs1JqimYGLf51n0yxG/iLgN/iMooU0E7MkhJbgZEmn5Bcbmhl hH9r18LjCq6W+9UIKzweaDqO4U8MwnrzKaDRnAXxIFxTIcfEJfWZbwOaqUK8xsFkeHdD GTPZTDvF48q/8jac7e5g07s3357wSdRLcLki3ymQZgd5NPxr8C5XoQSfKVwIlIcrIWex FzHTam4HB/7jLBF+HKmiulHhyHIQu5WYgaNrKcLUTGAurk6XR0QMVDU6G1D1JpytEBaP iF+g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1789176758; x=1789781558; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=ZvfD/NIMhAY/sAhVFEMBC5cGXIs+97HZdpNLEZY0qTk=; b=lBNPsSx4ThgUxV+LzZI3jxMgNzRjdYeGadIuwSjdCC6E/dEHXfMINlYQGT/PcDuKHZ 8nni1hUn5rNKin4HmQN24CVV+RsT0lnGq0+8Vglxo/LBYQVhT9xNNOeDrXBUrMzAtHWG ZviRUfdMIM7Ys/ErpUKCGP7NK/UAEYKxq62BECwPn5fo38oP3KbDrDpBlKSugJ+GL6bg AvTpxtVrH+UBDMXeRsna5hS7KiLOQ/O23p/XB9u17jAYbw4NB7TG+5Jh2gUuL6acU0zl +NPDvzpx/nVmXXSba7/3FAEph5+uorYCCR3B70lkuj2uGLwMcVBFZdFD/lA0U314ixs7 2tCg== X-Forwarded-Encrypted: i=1; AKwUvBy1CrkqU6LEZBZo7pw1bMC7EPMeW2ItglonO+f/TzHmTsfD55ygIQ4xNucJgrLu3IUC0fMxiAAun0U=@vger.kernel.org X-Gm-Message-State: AFuF++lm+sYVKSLEQoSINULogqLBgG2Z6sAL2oOh7avvuLrUFx7s9nHj NYhH1tzvD5EPXQinixnH8Dud254fttcH4YImuLoofGZmdrsN/o//514/ X-Gm-Gg: AYBFou2No+tF7j5m8td2fdwE9aAiCKhJ3Ccm6oh0qoincqaso3VzLoVYjbxX3w3vcCn Re5ODw2l9ZQxntIRFLx92/RAFs0TbdBvFkhiLzXm9uYoJ+2VAoSgriQzTYTzydPL7QS3rUYfxqZ v+kc0m8uWyxKxGErCs/ifb7LoAUlhO2XRByYFofkkUHhiYzxqj7Fcu/TYg5jXBl98NjbQbCDwAt +6mSgpteehTLllqzh0WXy7+huJTaSHKO3aJGX0ka4yAfmIknJHCvDFgR6oqMvN8wMdkyMS0gIG3 E0+v9mPqmNxe672HIyHfLZaq3RCs+d1Tk/sQ/aDWLWpduqbsQtfqFKgwbLYBK8UaQGNIi5jFLZX aWZ/laNWxBnCqDNiLCMiQK1qoCBf4NGUJNmnwz6DKo0ZM3s3eV0fwKHP98BFm0yfz9YhUD0gdtB XVGmtqrfv2R8YG2wI329C6sUL9Kj4kbAXrVOjtACLaMqT9s+GYBDhB5LS3DjuoCoGUZ419o9dwa YI= X-Received: by 2002:a05:6122:1c8e:b0:5c7:9445:f468 with SMTP id 71dfb90a1353d-5c8462bff30mr10202112e0c.6.1789176757830; Fri, 11 Sep 2026 18:32:37 -0700 (PDT) Received: from adriano ([190.215.95.120]) by smtp.gmail.com with ESMTPSA id 71dfb90a1353d-5c84714c380sm4738262e0c.15.2026.09.11.18.32.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 11 Sep 2026 18:32:37 -0700 (PDT) From: Adriano Cordova To: Simon Horman , Julian Anastasov Cc: Pablo Neira Ayuso , Florian Westphal , Phil Sutter , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Shuah Khan , netdev@vger.kernel.org, lvs-devel@vger.kernel.org, netfilter-devel@vger.kernel.org, Adriano Cordova Subject: [PATCH 0/4] ipvs: add per-service secure_tcp Date: Fri, 11 Sep 2026 22:32:12 -0300 Message-ID: <20260912013216.588300-1-adrianox@gmail.com> X-Mailer: git-send-email 2.51.0 Precedence: bulk X-Mailing-List: lvs-devel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit IPVS currently exposes secure_tcp as a per-netns sysctl. It switches the TCP state machine to the hardened tcp_states_dos table. These patches make it per-service: a virtual service can set IP_VS_SVC_F_SECURE_TCP which is passed into IP_VS_CONN_F_SECURE_TCP at connection creation. set_tcp_state() then selects tcp_states_dos for those connections with IP_VS_CONN_F_SECURE_TCP set and keeps pd->tcp_state_table (the netns default, including the nomem floor) otherwise. The flag is part of BACKUP_MASK, so it is preserved on sync to backups. 1. uapi: define the per-service secure_tcp flags 2. carry the flag on every connection-creation path (scheduler, persistence, RS-initiated, cache-bypass) and on FTP data channels 3. honor it in the TCP state machine, resolving the stale FIXME 4. kselftest contrasting a secure vs. a plain service. Not sure about patch 4... could be dropped or absorbed into ipvs.sh Adriano Cordova (4): ipvs: add flags for per-service secure TCP state table ipvs: stamp per-service secure_tcp on new connections ipvs: tcp: enable per-connection secure_tcp in state machine selftests: netfilter: ipvs: add per-service secure_tcp test include/uapi/linux/ip_vs.h | 5 +- net/netfilter/ipvs/ip_vs_core.c | 23 +- net/netfilter/ipvs/ip_vs_ftp.c | 8 +- net/netfilter/ipvs/ip_vs_proto_tcp.c | 16 +- .../testing/selftests/net/netfilter/Makefile | 6 + .../selftests/net/netfilter/gen_tcp_probe.c | 127 +++++++ .../net/netfilter/ipvs_secure_tcp.sh | 158 +++++++++ .../net/netfilter/ipvs_secure_tcp_mln.c | 310 ++++++++++++++++++ 8 files changed, 638 insertions(+), 15 deletions(-) create mode 100644 tools/testing/selftests/net/netfilter/gen_tcp_probe.c create mode 100755 tools/testing/selftests/net/netfilter/ipvs_secure_tcp.sh create mode 100644 tools/testing/selftests/net/netfilter/ipvs_secure_tcp_mln.c -- 2.51.0