LXR linux/include/uapi/linux/netfilter

   1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2#ifndef __LINUX_DECNET_NETFILTER_H
   3#define __LINUX_DECNET_NETFILTER_H
   4
   5/* DECnet-specific defines for netfilter. 
   6 * This file (C) Steve Whitehouse 1999 derived from the
   7 * ipv4 netfilter header file which is
   8 * (C)1998 Rusty Russell -- This code is GPL.
   9 */
  10
  11#include <linux/netfilter.h>
  12
  13/* only for userspace compatibility */
  14#ifndef __KERNEL__
  15
  16#include <limits.h> /* for INT_MIN, INT_MAX */
  17
  18/* kernel define is in netfilter_defs.h */
  19#define NF_DN_NUMHOOKS          7
  20#endif /* ! __KERNEL__ */
  21
  22/* DECnet Hooks */
  23/* After promisc drops, checksum checks. */
  24#define NF_DN_PRE_ROUTING       0
  25/* If the packet is destined for this box. */
  26#define NF_DN_LOCAL_IN          1
  27/* If the packet is destined for another interface. */
  28#define NF_DN_FORWARD           2
  29/* Packets coming from a local process. */
  30#define NF_DN_LOCAL_OUT         3
  31/* Packets about to hit the wire. */
  32#define NF_DN_POST_ROUTING      4
  33/* Input Hello Packets */
  34#define NF_DN_HELLO             5
  35/* Input Routing Packets */
  36#define NF_DN_ROUTE             6
  37
  38enum nf_dn_hook_priorities {
  39        NF_DN_PRI_FIRST = INT_MIN,
  40        NF_DN_PRI_CONNTRACK = -200,
  41        NF_DN_PRI_MANGLE = -150,
  42        NF_DN_PRI_NAT_DST = -100,
  43        NF_DN_PRI_FILTER = 0,
  44        NF_DN_PRI_NAT_SRC = 100,
  45        NF_DN_PRI_DNRTMSG = 200,
  46        NF_DN_PRI_LAST = INT_MAX,
  47};
  48
  49struct nf_dn_rtmsg {
  50        int nfdn_ifindex;
  51};
  52
  53#define NFDN_RTMSG(r) ((unsigned char *)(r) + NLMSG_ALIGN(sizeof(struct nf_dn_rtmsg)))
  54
  55#ifndef __KERNEL__
  56/* backwards compatibility for userspace */
  57#define DNRMG_L1_GROUP 0x01
  58#define DNRMG_L2_GROUP 0x02
  59#endif
  60
  61enum {
  62        DNRNG_NLGRP_NONE,
  63#define DNRNG_NLGRP_NONE        DNRNG_NLGRP_NONE
  64        DNRNG_NLGRP_L1,
  65#define DNRNG_NLGRP_L1          DNRNG_NLGRP_L1
  66        DNRNG_NLGRP_L2,
  67#define DNRNG_NLGRP_L2          DNRNG_NLGRP_L2
  68        __DNRNG_NLGRP_MAX
  69};
  70#define DNRNG_NLGRP_MAX (__DNRNG_NLGRP_MAX - 1)
  71
  72#endif /*__LINUX_DECNET_NETFILTER_H*/
  73