root/include/uapi/linux/netfilter_bridge.h

INCLUDED FROM

   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 
  33 enum 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 */