netfilter: nft_compat: add support for arptables extensions

This patch adds support to arptables extensions from nft_compat.

Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/net/netfilter/nft_compat.c b/net/netfilter/nft_compat.c
index c598f74..a990df2 100644 (file)
--- a/net/netfilter/nft_compat.c
+++ b/net/netfilter/nft_compat.c
@@ -20,6 +20,7 @@
 #include <linux/netfilter_ipv4/ip_tables.h>
 #include <linux/netfilter_ipv6/ip6_tables.h>
 #include <linux/netfilter_bridge/ebtables.h>
+#include <linux/netfilter_arp/arp_tables.h>
 #include <net/netfilter/nf_tables.h>
 
 static int nft_compat_chain_validate_dependency(const char *tablename,
@@ -42,6 +43,7 @@ union nft_entry {
        struct ipt_entry e4;
        struct ip6t_entry e6;
        struct ebt_entry ebt;
+       struct arpt_entry arp;
 };
 
 static inline void
@@ -140,6 +142,8 @@ nft_target_set_tgchk_param(struct xt_tgchk_param *par,
                entry->ebt.ethproto = proto;
                entry->ebt.invflags = inv ? EBT_IPROTO : 0;
                break;
+       case NFPROTO_ARP:
+               break;
        }
        par->entryinfo  = entry;
        par->target     = target;
@@ -351,6 +355,8 @@ nft_match_set_mtchk_param(struct xt_mtchk_param *par, const struct nft_ctx *ctx,
                entry->ebt.ethproto = proto;
                entry->ebt.invflags = inv ? EBT_IPROTO : 0;
                break;
+       case NFPROTO_ARP:
+               break;
        }
        par->entryinfo  = entry;
        par->match      = match;
@@ -537,6 +543,9 @@ nfnl_compat_get(struct sock *nfnl, struct sk_buff *skb,
        case NFPROTO_BRIDGE:
                fmt = "ebt_%s";
                break;
+       case NFPROTO_ARP:
+               fmt = "arpt_%s";
+               break;
        default:
                pr_err("nft_compat: unsupported protocol %d\n",
                        nfmsg->nfgen_family);