From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shyam Saini Subject: [PATCH 1/1] extensions: libxt_cluster: Add translation to nft Date: Wed, 24 May 2017 18:01:51 +0530 Message-ID: <1495629111-8206-1-git-send-email-mayhs11saini@gmail.com> Cc: pablo@netfilter.org, arturo@debian.org, fw@strlen.de, Shyam Saini To: netfilter-devel@vger.kernel.org Return-path: Received: from mail-pg0-f42.google.com ([74.125.83.42]:34740 "EHLO mail-pg0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1764715AbdEXMcQ (ORCPT ); Wed, 24 May 2017 08:32:16 -0400 Received: by mail-pg0-f42.google.com with SMTP id u28so65223860pgn.1 for ; Wed, 24 May 2017 05:32:16 -0700 (PDT) Sender: netfilter-devel-owner@vger.kernel.org List-ID: Add translation for cluster to nft $ sudo iptables-translate -A PREROUTING -t mangle -i eth1 -m cluster --cluster-total-nodes 2 --cluster-local-node 1 --cluster-hash-seed 0xdeadbeef -j MARK --set-mark 0xffff nft add rule ip mangle PREROUTING iifname eth1 ct state {new,established, related, untracked} ct direction original mark set jhash ip saddr mod 2 seed 0xdeadbeef offset 1 counter meta mark set 0xffff $ sudo iptables-translate -A PREROUTING -t mangle -i eth1 -m cluster --cluster-total-nodes 2 --cluster-local-nodemask 1 --cluster-hash-seed 0xdeadbeef -j MARK --set-mark 0xffff nft add rule ip mangle PREROUTING iifname eth1 ct state {new,established, related, untracked} ct direction original mark set jhash ip saddr mod 2 seed 0xdeadbeef offset 1 counter meta mark set 0xffff --debug=netlink result __set%d mangle 3 __set%d mangle 0 element 00000008 : 0 [end] element 00000002 : 0 [end] element 00000004 : 0 [end] element 00000040 : 0 [end] ip mangle PREROUTING [ meta load iifname => reg 1 ] [ cmp eq reg 1 0x31687465 0x00000000 0x00000000 0x00000000 ] [ ct load state => reg 1 ] [ lookup reg 1 set __set%d ] [ ct load direction => reg 1 ] [ cmp eq reg 1 0x00000000 ] [ payload load 4b @ network header + 12 => reg 2 ] [ hash reg 1 = jhash(reg 2, 4, 0xdeadbeef) % mod 2 offset 1 ] [ meta set mark with reg 1 ] [ counter pkts 0 bytes 0 ] [ immediate reg 1 0x0000ffff ] [ meta set mark with reg 1 ] Signed-off-by: Shyam Saini --- extensions/libxt_cluster.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/extensions/libxt_cluster.c b/extensions/libxt_cluster.c index 3adff12..8891f47 100644 --- a/extensions/libxt_cluster.c +++ b/extensions/libxt_cluster.c @@ -126,6 +126,17 @@ cluster_save(const void *ip, const struct xt_entry_match *match) info->total_nodes, info->hash_seed); } +static int +cluster_xlate(struct xt_xlate *xl, const struct xt_entry_match *match, int numeric) +{ + char ct_statement[256] = "ct state {new,established, related, untracked} ct direction original"; + const struct xt_cluster_match_info *info = (void *)match->data; + xt_xlate_add(xl, "%s mark set jhash ip saddr mod %u seed 0x%x offset %u", + ct_statement, info->total_nodes, info->hash_seed, info->node_mask); + return 1; + +} + static struct xtables_match cluster_mt_reg = { .family = NFPROTO_UNSPEC, .name = "cluster", @@ -138,6 +149,7 @@ static struct xtables_match cluster_mt_reg = { .x6_parse = cluster_parse, .x6_fcheck = cluster_check, .x6_options = cluster_opts, + .xlate = cluster_xlate, }; void _init(void) -- 1.9.1