From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 96F42C4321E for ; Sun, 9 Jan 2022 23:17:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237374AbiAIXQ6 (ORCPT ); Sun, 9 Jan 2022 18:16:58 -0500 Received: from mail.netfilter.org ([217.70.188.207]:42112 "EHLO mail.netfilter.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237386AbiAIXQz (ORCPT ); Sun, 9 Jan 2022 18:16:55 -0500 Received: from localhost.localdomain (unknown [78.30.32.163]) by mail.netfilter.org (Postfix) with ESMTPSA id 0E0A46428F; Mon, 10 Jan 2022 00:14:04 +0100 (CET) From: Pablo Neira Ayuso To: netfilter-devel@vger.kernel.org Cc: davem@davemloft.net, netdev@vger.kernel.org, kuba@kernel.org Subject: [PATCH net-next 08/32] netfilter: conntrack: tag conntracks picked up in local out hook Date: Mon, 10 Jan 2022 00:16:16 +0100 Message-Id: <20220109231640.104123-9-pablo@netfilter.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220109231640.104123-1-pablo@netfilter.org> References: <20220109231640.104123-1-pablo@netfilter.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netfilter-devel@vger.kernel.org From: Florian Westphal This allows to identify flows that originate from local machine in a followup patch. It would be possible to make this a ->status bit instead. For now I did not do that yet because I don't have a use-case for exposing this info to userspace. If one comes up the toggle can be replaced with a status bit. Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso --- include/net/netfilter/nf_conntrack.h | 1 + net/netfilter/nf_conntrack_core.c | 3 +++ 2 files changed, 4 insertions(+) diff --git a/include/net/netfilter/nf_conntrack.h b/include/net/netfilter/nf_conntrack.h index d24b0a34c8f0..871489df63c6 100644 --- a/include/net/netfilter/nf_conntrack.h +++ b/include/net/netfilter/nf_conntrack.h @@ -95,6 +95,7 @@ struct nf_conn { unsigned long status; u16 cpu; + u16 local_origin:1; possible_net_t ct_net; #if IS_ENABLED(CONFIG_NF_NAT) diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c index d7e313548066..bed0017cadb0 100644 --- a/net/netfilter/nf_conntrack_core.c +++ b/net/netfilter/nf_conntrack_core.c @@ -1747,6 +1747,9 @@ resolve_normal_ct(struct nf_conn *tmpl, return 0; if (IS_ERR(h)) return PTR_ERR(h); + + ct = nf_ct_tuplehash_to_ctrack(h); + ct->local_origin = state->hook == NF_INET_LOCAL_OUT; } ct = nf_ct_tuplehash_to_ctrack(h); -- 2.30.2