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-rw-r--r--net/bridge/netfilter/ebt_dnat.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/net/bridge/netfilter/ebt_dnat.c b/net/bridge/netfilter/ebt_dnat.c
index 4e0b0c359325..e0bb624c3845 100644
--- a/net/bridge/netfilter/ebt_dnat.c
+++ b/net/bridge/netfilter/ebt_dnat.c
@@ -9,6 +9,7 @@
*/
#include <linux/module.h>
#include <net/sock.h>
+#include "../br_private.h"
#include <linux/netfilter.h>
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter_bridge/ebtables.h>
@@ -18,11 +19,30 @@ static unsigned int
ebt_dnat_tg(struct sk_buff *skb, const struct xt_action_param *par)
{
const struct ebt_nat_info *info = par->targinfo;
+ struct net_device *dev;
if (!skb_make_writable(skb, 0))
return EBT_DROP;
ether_addr_copy(eth_hdr(skb)->h_dest, info->mac);
+
+ if (is_multicast_ether_addr(info->mac)) {
+ if (is_broadcast_ether_addr(info->mac))
+ skb->pkt_type = PACKET_BROADCAST;
+ else
+ skb->pkt_type = PACKET_MULTICAST;
+ } else {
+ if (xt_hooknum(par) != NF_BR_BROUTING)
+ dev = br_port_get_rcu(xt_in(par))->br->dev;
+ else
+ dev = xt_in(par);
+
+ if (ether_addr_equal(info->mac, dev->dev_addr))
+ skb->pkt_type = PACKET_HOST;
+ else
+ skb->pkt_type = PACKET_OTHERHOST;
+ }
+
return info->target;
}