From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pablo Neira Ayuso Subject: Re: [PATCH nf-next 1/2] netfilter: kill the fake untracked conntrack objects Date: Sat, 15 Apr 2017 11:21:31 +0200 Message-ID: <20170415092131.GA4810@salvia> References: <20170414183109.25285-1-fw@strlen.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: netfilter-devel@vger.kernel.org To: Florian Westphal Return-path: Received: from mail.us.es ([193.147.175.20]:35124 "EHLO mail.us.es" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751893AbdDOJVh (ORCPT ); Sat, 15 Apr 2017 05:21:37 -0400 Received: from antivirus1-rhel7.int (unknown [192.168.2.11]) by mail.us.es (Postfix) with ESMTP id 1F1E6E04B1 for ; Sat, 15 Apr 2017 11:21:32 +0200 (CEST) Received: from antivirus1-rhel7.int (localhost [127.0.0.1]) by antivirus1-rhel7.int (Postfix) with ESMTP id 0F153DA865 for ; Sat, 15 Apr 2017 11:21:32 +0200 (CEST) Received: from antivirus1-rhel7.int (localhost [127.0.0.1]) by antivirus1-rhel7.int (Postfix) with ESMTP id EF3E8DA86C for ; Sat, 15 Apr 2017 11:21:29 +0200 (CEST) Content-Disposition: inline In-Reply-To: <20170414183109.25285-1-fw@strlen.de> Sender: netfilter-devel-owner@vger.kernel.org List-ID: Hi Florian, On Fri, Apr 14, 2017 at 08:31:08PM +0200, Florian Westphal wrote: [...] > resurrect an old patch from Pablo Neira to remove the untracked objects. Thanks for doing so :) > diff --git a/include/uapi/linux/netfilter/nf_conntrack_common.h b/include/uapi/linux/netfilter/nf_conntrack_common.h > index 6a8e33dd4ecb..b4a0a1940118 100644 > --- a/include/uapi/linux/netfilter/nf_conntrack_common.h > +++ b/include/uapi/linux/netfilter/nf_conntrack_common.h > @@ -28,12 +28,14 @@ enum ip_conntrack_info { > /* only for userspace compatibility */ > #ifndef __KERNEL__ > IP_CT_NEW_REPLY = IP_CT_NUMBER, > +#else > + IP_CT_UNTRACKED = 7, This seems to be exposed via nfnetlink_queue conntrack support. > @@ -94,7 +96,7 @@ enum ip_conntrack_status { > IPS_TEMPLATE_BIT = 11, > IPS_TEMPLATE = (1 << IPS_TEMPLATE_BIT), > > - /* Conntrack is a fake untracked entry */ > + /* Conntrack is a fake untracked entry. Obsolete and not used anymore */ > IPS_UNTRACKED_BIT = 12, > IPS_UNTRACKED = (1 << IPS_UNTRACKED_BIT), I wonder if we should just set this via ctnetlink, so the interface keeps stable. Even if we don't use this bit anymore. These are also exposed via ctnetlink CTA_STATUS.