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 /* Bridge Hooks */
15 /* After promisc drops, checksum checks. */
16 #define NF_BR_PRE_ROUTING	0
17 /* If the packet is destined for this box. */
18 #define NF_BR_LOCAL_IN		1
19 /* If the packet is destined for another interface. */
20 #define NF_BR_FORWARD		2
21 /* Packets coming from a local process. */
22 #define NF_BR_LOCAL_OUT		3
23 /* Packets about to hit the wire. */
24 #define NF_BR_POST_ROUTING	4
25 /* Not really a hook, but used for the ebtables broute table */
26 #define NF_BR_BROUTING		5
27 #define NF_BR_NUMHOOKS		6
28 
29 enum nf_br_hook_priorities {
30 	NF_BR_PRI_FIRST = INT_MIN,
31 	NF_BR_PRI_NAT_DST_BRIDGED = -300,
32 	NF_BR_PRI_FILTER_BRIDGED = -200,
33 	NF_BR_PRI_BRNF = 0,
34 	NF_BR_PRI_NAT_DST_OTHER = 100,
35 	NF_BR_PRI_FILTER_OTHER = 200,
36 	NF_BR_PRI_NAT_SRC = 300,
37 	NF_BR_PRI_LAST = INT_MAX,
38 };
39 
40 #endif /* _UAPI__LINUX_BRIDGE_NETFILTER_H */
41