include/uapi/linux/netfilter_ipv6.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 /* IPv6-specific defines for netfilter.
   3  * (C)1998 Rusty Russell -- This code is GPL.
   4  * (C)1999 David Jeffery
   5  *   this header was blatantly ripped from netfilter_ipv4.h
   6  *   it's amazing what adding a bunch of 6s can do =8^)
   7  */
   8 #ifndef _UAPI__LINUX_IP6_NETFILTER_H
   9 #define _UAPI__LINUX_IP6_NETFILTER_H
  10
  11
  12 #include <linux/netfilter.h>
  13
  14 /* only for userspace compatibility */
  15 #ifndef __KERNEL__
  16
  17 #include <limits.h> /* for INT_MIN, INT_MAX */
  18
  19 /* IP6 Hooks */
  20 /* After promisc drops, checksum checks. */
  21 #define NF_IP6_PRE_ROUTING      0
  22 /* If the packet is destined for this box. */
  23 #define NF_IP6_LOCAL_IN         1
  24 /* If the packet is destined for another interface. */
  25 #define NF_IP6_FORWARD          2
  26 /* Packets coming from a local process. */
  27 #define NF_IP6_LOCAL_OUT                3
  28 /* Packets about to hit the wire. */
  29 #define NF_IP6_POST_ROUTING     4
  30 #define NF_IP6_NUMHOOKS         5
  31 #endif /* ! __KERNEL__ */
  32
  33
  34 enum nf_ip6_hook_priorities {
  35         NF_IP6_PRI_FIRST = INT_MIN,
  36         NF_IP6_PRI_RAW_BEFORE_DEFRAG = -450,
  37         NF_IP6_PRI_CONNTRACK_DEFRAG = -400,
  38         NF_IP6_PRI_RAW = -300,
  39         NF_IP6_PRI_SELINUX_FIRST = -225,
  40         NF_IP6_PRI_CONNTRACK = -200,
  41         NF_IP6_PRI_MANGLE = -150,
  42         NF_IP6_PRI_NAT_DST = -100,
  43         NF_IP6_PRI_FILTER = 0,
  44         NF_IP6_PRI_SECURITY = 50,
  45         NF_IP6_PRI_NAT_SRC = 100,
  46         NF_IP6_PRI_SELINUX_LAST = 225,
  47         NF_IP6_PRI_CONNTRACK_HELPER = 300,
  48         NF_IP6_PRI_LAST = INT_MAX,
  49 };
  50
  51
  52 #endif /* _UAPI__LINUX_IP6_NETFILTER_H */