root/include/uapi/linux/netfilter_decnet.h

INCLUDED FROM

   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 
  38 enum 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 
  49 struct 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 
  61 enum {
  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*/