From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shivani Bhardwaj Subject: [PATCH] extensions: libxt_helper: Add translation to nft Date: Wed, 23 Dec 2015 15:23:47 +0530 Message-ID: <20151223095347.GA5866@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii To: netfilter-devel@vger.kernel.org Return-path: Received: from mail-pf0-f170.google.com ([209.85.192.170]:36721 "EHLO mail-pf0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754425AbbLWJxz (ORCPT ); Wed, 23 Dec 2015 04:53:55 -0500 Received: by mail-pf0-f170.google.com with SMTP id 65so5974396pff.3 for ; Wed, 23 Dec 2015 01:53:54 -0800 (PST) Received: from gmail.com ([106.203.193.102]) by smtp.gmail.com with ESMTPSA id n26sm40530758pfb.39.2015.12.23.01.53.52 for (version=TLS1_2 cipher=AES128-SHA bits=128/128); Wed, 23 Dec 2015 01:53:53 -0800 (PST) Content-Disposition: inline Sender: netfilter-devel-owner@vger.kernel.org List-ID: Add translation for helper module to nftables. Examples: $ sudo iptables-translate -A FORWARD -m helper --helper sip nft add rule ip filter FORWARD ct helper \"sip\" counter $ sudo iptables-translate -A FORWARD -m helper ! --helper ftp nft add rule ip filter FORWARD ct helper != \"ftp\" counter Signed-off-by: Shivani Bhardwaj --- extensions/libxt_helper.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/extensions/libxt_helper.c b/extensions/libxt_helper.c index c9f9435..5f1d8b1 100644 --- a/extensions/libxt_helper.c +++ b/extensions/libxt_helper.c @@ -45,6 +45,19 @@ static void helper_save(const void *ip, const struct xt_entry_match *match) xtables_save_string(info->name); } +static int helper_xlate(const struct xt_entry_match *match, + struct xt_buf *buf, int numeric) +{ + const struct xt_helper_info *info = (const void *)match->data; + + xt_buf_add(buf, "ct helper"); + + xt_buf_add(buf, "%s \\\"%s\\\" ", + info->invert ? " !=" : "", info->name); + + return 1; +} + static struct xtables_match helper_match = { .family = NFPROTO_UNSPEC, .name = "helper", @@ -55,6 +68,7 @@ static struct xtables_match helper_match = { .save = helper_save, .x6_parse = helper_parse, .x6_options = helper_opts, + .xlate = helper_xlate, }; void _init(void) -- 1.9.1