From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx1.secunet.com (mx1.secunet.com [62.96.220.36]) (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 06AA91F78E6 for ; Fri, 5 Dec 2025 06:19:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=62.96.220.36 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764915551; cv=none; b=YPLjXxIus2a7yUuc/J7IX04UvDhC1UogI3Yzpg3HhXxZfw7Adx/BATRbnUozj1lL/hbwMYUyRmdJoooRodCSFlHgDh0+axZjFLOjhljymyQednzRTuLYBa4RAGntFO7MXuvz6QCP/97kDlliRP/zbkfYRPU/TWKzSnaelxpU+fM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764915551; c=relaxed/simple; bh=KTK0RlPXSasoSa/nN0nuLr1awIsKUayEm1STFPTrg0U=; h=Date:From:To:CC:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=iIEMDvWdgEunLmotz+2Pdx+tVITtEAAa6tsEZHfLsu6Hf2S25MD4oob3k9EdDt2YDqvdOtTN+7veicvyOvBNunKfbOnV3t7Ofnvnxg/B1sC/U5YGfPibJKKRRUuyntBKfgB6izUoIRyUZIDNNS4Tv24CYTEeJG9WyQZRo7x9eZQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=secunet.com; spf=pass smtp.mailfrom=secunet.com; dkim=pass (2048-bit key) header.d=secunet.com header.i=@secunet.com header.b=PgCxpvLX; arc=none smtp.client-ip=62.96.220.36 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=secunet.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=secunet.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=secunet.com header.i=@secunet.com header.b="PgCxpvLX" Received: from localhost (localhost [127.0.0.1]) by mx1.secunet.com (Postfix) with ESMTP id BC6A920842; Fri, 5 Dec 2025 07:19:00 +0100 (CET) X-Virus-Scanned: by secunet Received: from mx1.secunet.com ([127.0.0.1]) by localhost (mx1.secunet.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 8GIjTnr3u6mk; Fri, 5 Dec 2025 07:19:00 +0100 (CET) Received: from EXCH-01.secunet.de (rl1.secunet.de [10.32.0.231]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.secunet.com (Postfix) with ESMTPS id 061A520839; Fri, 5 Dec 2025 07:19:00 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.secunet.com 061A520839 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=secunet.com; s=202301; t=1764915540; bh=TpIl10NHPzwEqE7ZO2S01Tq+IahBNURxoHVLrdL4i4E=; h=Date:From:To:CC:Subject:References:In-Reply-To:From; b=PgCxpvLXHdZmEuovtAAXQeJEDnAaLSi4F+Sa+jP0Gv6cJPhy03yLB8chKu3E7bZnZ 78V2PwQBWeP+naDj8t8JVFAgqdHR4L94mXshfI3Wi1Nfs9HMDjzww+7VDmIhtXwO78 PGBdySWMtlBtDFDbQllvf7mNnvgVlipxp/34IGhQlN+YLtbUWC/RHKnaxNet05dK86 Zkga49022S08hZtv7XOPVM1z0MCOfZE9qOtl6eWNUkAB+t79axn07Yiu6jtEePSIEz 2RLYyfGCnHK2mRas3//6/9HeCauwc5+kKDOE3dPFizUhb3QoLyKJNYS/WQKwCGQkL8 WhfYvXYGD3I8w== Received: from secunet.com (10.182.7.193) by EXCH-01.secunet.de (10.32.0.171) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.17; Fri, 5 Dec 2025 07:18:59 +0100 Received: (nullmailer pid 3420591 invoked by uid 1000); Fri, 05 Dec 2025 06:18:58 -0000 Date: Fri, 5 Dec 2025 07:18:58 +0100 From: Steffen Klassert To: Antony Antony CC: Herbert Xu , , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman Subject: Re: [PATCH ipsec] xfrm: set ipv4 no_pmtu_disc flag only on output sa when direction is set Message-ID: References: <17a716f13124491528d5ee4ff15019f785755d50.1764249526.git.antony.antony@secunet.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <17a716f13124491528d5ee4ff15019f785755d50.1764249526.git.antony.antony@secunet.com> X-ClientProxiedBy: EXCH-01.secunet.de (10.32.0.171) To EXCH-01.secunet.de (10.32.0.171) On Thu, Nov 27, 2025 at 03:05:55PM +0100, Antony Antony wrote: > The XFRM_STATE_NOPMTUDISC flag is only meaningful for output SAs, but > it was being applied regardless of the SA direction when the sysctl > ip_no_pmtu_disc is enabled. This can unintentionally affect input SAs. > > Limit setting XFRM_STATE_NOPMTUDISC to output SAs when the SA direction > is configured. > > Reported-by: https://github.com/roth-m This tag does not make much sense IMO. We neither have a real name nor an email address to contact.