1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef _UAPI__LINUX_BRIDGE_NETFILTER_H
3#define _UAPI__LINUX_BRIDGE_NETFILTER_H
4
5/* bridge-specific defines for netfilter.
6 */
7
8#include <linux/in.h>
9#include <linux/netfilter.h>
10#include <linux/if_ether.h>
11#include <linux/if_vlan.h>
12#include <linux/if_pppox.h>
13
14#ifndef __KERNEL__
15#include <limits.h> /* for INT_MIN, INT_MAX */
16#endif
17
18/* Bridge Hooks */
19/* After promisc drops, checksum checks. */
20#define NF_BR_PRE_ROUTING 0
21/* If the packet is destined for this box. */
22#define NF_BR_LOCAL_IN 1
23/* If the packet is destined for another interface. */
24#define NF_BR_FORWARD 2
25/* Packets coming from a local process. */
26#define NF_BR_LOCAL_OUT 3
27/* Packets about to hit the wire. */
28#define NF_BR_POST_ROUTING 4
29/* Not really a hook, but used for the ebtables broute table */
30#define NF_BR_BROUTING 5
31#define NF_BR_NUMHOOKS 6
32
33enum nf_br_hook_priorities {
34 NF_BR_PRI_FIRST = INT_MIN,
35 NF_BR_PRI_NAT_DST_BRIDGED = -300,
36 NF_BR_PRI_FILTER_BRIDGED = -200,
37 NF_BR_PRI_BRNF = 0,
38 NF_BR_PRI_NAT_DST_OTHER = 100,
39 NF_BR_PRI_FILTER_OTHER = 200,
40 NF_BR_PRI_NAT_SRC = 300,
41 NF_BR_PRI_LAST = INT_MAX,
42};
43
44#endif /* _UAPI__LINUX_BRIDGE_NETFILTER_H */
45