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#ifndef __LINUX_BRIDGE_NETFILTER_H
#define __LINUX_BRIDGE_NETFILTER_H
/* bridge-specific defines for netfilter.
*/
#include <linux/config.h>
#include <linux/netfilter.h>
#include <asm/atomic.h>
/* Bridge Hooks */
/* After promisc drops, checksum checks. */
#define NF_BR_PRE_ROUTING 0
/* If the packet is destined for this box. */
#define NF_BR_LOCAL_IN 1
/* If the packet is destined for another interface. */
#define NF_BR_FORWARD 2
/* Packets coming from a local process. */
#define NF_BR_LOCAL_OUT 3
/* Packets about to hit the wire. */
#define NF_BR_POST_ROUTING 4
/* Not really a hook, but used for the ebtables broute table */
#define NF_BR_BROUTING 5
#define NF_BR_NUMHOOKS 6
#define BRNF_PKT_TYPE 0x01
#define BRNF_BRIDGED_DNAT 0x02
#define BRNF_DONT_TAKE_PARENT 0x04
enum nf_br_hook_priorities {
NF_BR_PRI_FIRST = INT_MIN,
NF_BR_PRI_NAT_DST_BRIDGED = -300,
NF_BR_PRI_FILTER_BRIDGED = -200,
NF_BR_PRI_BRNF = 0,
NF_BR_PRI_NAT_DST_OTHER = 100,
NF_BR_PRI_FILTER_OTHER = 200,
NF_BR_PRI_NAT_SRC = 300,
NF_BR_PRI_LAST = INT_MAX,
};
static inline
struct nf_bridge_info *nf_bridge_alloc(struct sk_buff *skb)
{
struct nf_bridge_info **nf_bridge = &(skb->nf_bridge);
if ((*nf_bridge = kmalloc(sizeof(**nf_bridge), GFP_ATOMIC)) != NULL) {
atomic_set(&(*nf_bridge)->use, 1);
(*nf_bridge)->mask = 0;
(*nf_bridge)->physindev = (*nf_bridge)->physoutdev = NULL;
}
return *nf_bridge;
}
struct bridge_skb_cb {
union {
__u32 ipv4;
} daddr;
};
#endif
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