linux/include/uapi/linux/netfilter_bridge.h

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI__LINUX_BRIDGE_NETFILTER_H
#define _UAPI__LINUX_BRIDGE_NETFILTER_H

/* bridge-specific defines for netfilter. 
 */

#include <linux/in.h>
#include <linux/netfilter.h>
#include <linux/if_ether.h>
#include <linux/if_vlan.h>
#include <linux/if_pppox.h>

#ifndef __KERNEL__
#include <limits.h> /* for INT_MIN, INT_MAX */
#endif

/* Bridge Hooks */
/* After promisc drops, checksum checks. */
#define NF_BR_PRE_ROUTING …
/* If the packet is destined for this box. */
#define NF_BR_LOCAL_IN …
/* If the packet is destined for another interface. */
#define NF_BR_FORWARD …
/* Packets coming from a local process. */
#define NF_BR_LOCAL_OUT …
/* Packets about to hit the wire. */
#define NF_BR_POST_ROUTING …
/* Not really a hook, but used for the ebtables broute table */
#define NF_BR_BROUTING …
#define NF_BR_NUMHOOKS …

enum nf_br_hook_priorities { … };

#endif /* _UAPI__LINUX_BRIDGE_NETFILTER_H */