From patchwork Fri Feb 9 06:12:11 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jason Xing X-Patchwork-Id: 13550890 Received: from mail-pl1-f180.google.com (mail-pl1-f180.google.com [209.85.214.180]) (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 632E657308 for ; Fri, 9 Feb 2024 06:12:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.180 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707459147; cv=none; b=XP0+qDo/XNiyX90jZHxFkS8pEj5/SOnvlxCi+b8xhFbTO1lzXhhdZc6WWFZX3ZGVXOi6DH8ck3iT5hLK50gnvTHv9rITfkc40NrWdLybq69HlNIO1LIDv7bCtn4sUch5nDTYWVs52/7BDAEBglmg+wkp4Z8+7SnrX8qGr+X4wYU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707459147; c=relaxed/simple; bh=ByPOuBXxZueNIY2WwJa12O35L+g4saZim753xv8FeyA=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=iPyAJgcdG2mDQj2LIzzk1k8kl4otdc1bXKdMX9BEBB96fO/a8X6PN7SKu64oBWRUvPt+QWIuOiiyAnezYqZEotDASD8UTqQYPRFxx2JfjP1TuoSq44veyCRDHyUmlisWje/Y4zXDBug3A0lXBrIctObguDSQ7qBJEmRff/vVMPI= 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=JTqUJyzL; arc=none smtp.client-ip=209.85.214.180 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="JTqUJyzL" Received: by mail-pl1-f180.google.com with SMTP id d9443c01a7336-1d7881b1843so5392475ad.3 for ; Thu, 08 Feb 2024 22:12:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1707459145; x=1708063945; 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; bh=5MWvnrhKCarN9IchyY3TV/zfkt+BJdbLxKPHf4mNYsw=; b=JTqUJyzL+FRltPf6KTImRHLe+92XqNjDSXrhlhZroGLtrkfoM3oNGK2/RkDyLZ7VOG 8BfChWgyRDSa/LZ09ibqo4CmtJ0x5gjc0XS6/bloDKXPk8oc9t9vnOgrtELLuaBFkyF+ BvprdkPWJGLm44EeOkSBdakivNburBdNSM1DnHdE/bC9JCTFuWDoNVqMXMIm6BA7xLV3 +KEAMzn/9f5yupymZwvK1MZAkne3fnI/GAP3JaZs+J3EyXk0NKUdD6lpy644TjFsd7/F ZNurHtX66dbPgRrlpTLllR159usR7oejGNj0tuQxj+9Akqe3d+cLsmCMq8lS0V0Kym2x FA1w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1707459145; x=1708063945; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=5MWvnrhKCarN9IchyY3TV/zfkt+BJdbLxKPHf4mNYsw=; b=lJicavvYR64qEOZrL+kY1xjz85KsfZeOVS0V1kt1jI21GGfeHSChqB6wxQfkDF5YBJ 6rryPaXe1DnV52yUifobJ8Sgv1tg8J+aquAdiDfH1sPa+CIL1mnBxl7D1aaWex+zaPys 1mVGnPzvgRaSfEAjR9Q8xUlOevlBw/1arn4xj2GBC03YGqy5zPWIKCm5tIcbbRwGVOr9 B0PBjnVONHI+Aim5MMHTPD4uvGDLVkdJHvCS/qWMCW8nmgmRacK4nxF+XJwiM4pln98w eDAMkO17wGXlHxcxq+XXYn6PK4MdcL4wWd8Cgd+nTnCZPHRt0FQq/QcFMekrMuCzyrHP wSLA== X-Gm-Message-State: AOJu0YxmxhyPyDf3VBvJtN6Vkzx+pvYcZ4LxQv3kijvCVOrIfv313pzL 00oinDsmhHx2SpuL1bJ5mUe6mO87u8YHceJ1L+GpM7I/RBhb62R7 X-Google-Smtp-Source: AGHT+IG/bMl4v7GKbooQsWeCJwTBhPZkEdX+XW34XYdFTPQjA8Y5Flcy3khazb4sQWOLToZXRhT88g== X-Received: by 2002:a17:902:cecb:b0:1d8:fb17:a1fe with SMTP id d11-20020a170902cecb00b001d8fb17a1femr732185plg.48.1707459144970; Thu, 08 Feb 2024 22:12:24 -0800 (PST) X-Forwarded-Encrypted: i=1; AJvYcCWILrwhNUOrdjWMaARGUTy1zlfcfVbPE+zwIGTVHywxjqgnXZnzb6ve//9esga9mGC9Gp0MRya5T04aF+ZdkvQJ3o904QGkzG1U2/LoR1uIIJMz3pckow7AemtkigFnX7zheo4a18U1T79cMgWsdLfF0Ji3G0XyXdM+NHQ/1o5yhLIHMrQHYmxYSFMbKY0kXYAGIrpn/4LYadpMuV7Cli2QWkfRl895OmsRxFBTyQo= Received: from KERNELXING-MB0.tencent.com ([14.108.141.58]) by smtp.gmail.com with ESMTPSA id s9-20020a170903320900b001d9620e9ac9sm746321plh.170.2024.02.08.22.12.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 08 Feb 2024 22:12:24 -0800 (PST) From: Jason Xing To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, dsahern@kernel.org Cc: netdev@vger.kernel.org, kerneljasonxing@gmail.com, Jason Xing Subject: [PATCH v2 net-next 0/2] add more drop reasons in tcp receive path Date: Fri, 9 Feb 2024 14:12:11 +0800 Message-Id: <20240209061213.72152-1-kerneljasonxing@gmail.com> X-Mailer: git-send-email 2.33.0 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org From: Jason Xing When I was debugging the reason about why the skb should be dropped in syn cookie mode, I found out that this NOT_SPECIFIED reason is too general. Thus I decided to refine it. v2: Link: https://lore.kernel.org/all/20240204104601.55760-1-kerneljasonxing@gmail.com/ 1. change the title of 2/2 patch. 2. fix some warnings checkpatch tool showed before. 3. use return value instead of adding more parameters suggested by Eric. Jason Xing (2): tcp: add more DROP REASONs in cookie check tcp: add more DROP REASONs in receive process include/net/dropreason-core.h | 23 ++++++++++++++++++++++- include/net/tcp.h | 4 ++-- net/ipv4/syncookies.c | 20 ++++++++++++++++---- net/ipv4/tcp_input.c | 26 +++++++++++++++++--------- net/ipv4/tcp_ipv4.c | 21 +++++++++++++-------- net/ipv4/tcp_minisocks.c | 10 +++++----- net/ipv6/tcp_ipv6.c | 19 ++++++++++++------- 7 files changed, 87 insertions(+), 36 deletions(-)