diff options
| -rw-r--r-- | net/bridge/netfilter/ebt_dnat.c | 20 |
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; } |