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 AF2FCC433EF for ; Fri, 17 Dec 2021 10:30:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235067AbhLQKaI (ORCPT ); Fri, 17 Dec 2021 05:30:08 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43328 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235029AbhLQKaG (ORCPT ); Fri, 17 Dec 2021 05:30:06 -0500 Received: from Chamillionaire.breakpoint.cc (Chamillionaire.breakpoint.cc [IPv6:2a0a:51c0:0:12e:520::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BCE4CC06173F for ; Fri, 17 Dec 2021 02:30:05 -0800 (PST) Received: from fw by Chamillionaire.breakpoint.cc with local (Exim 4.92) (envelope-from ) id 1myAV1-0005qM-I5; Fri, 17 Dec 2021 11:30:03 +0100 From: Florian Westphal To: Cc: Florian Westphal Subject: [PATCH nf-next v4 0/2] nat: force port remap to prevent shadowing well-known ports Date: Fri, 17 Dec 2021 11:29:55 +0100 Message-Id: <20211217102957.2999-1-fw@strlen.de> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netfilter-devel@vger.kernel.org Hi, This is a resend of the port remap change with auto-exception for locally originating connections. This is done by adding a bit in nf_conn for LOCAL_OUT tracked entries. Patch 1/2 is same as in v2. Patch 2/2 is same as v3. v3 only contained patch 2/2 by mistake. Florian Westphal (2): netfilter: conntrack: tag conntracks picked up in local out hook netfilter: nat: force port remap to prevent shadowing well-known ports include/net/netfilter/nf_conntrack.h | 1 + net/netfilter/nf_conntrack_core.c | 3 ++ net/netfilter/nf_nat_core.c | 43 ++++++++++++++++++-- tools/testing/selftests/netfilter/nft_nat.sh | 5 ++- 4 files changed, 47 insertions(+), 5 deletions(-) -- 2.32.0