include/linux/netfilter_decnet.h

   1 #ifndef __LINUX_DECNET_NETFILTER_H
   2 #define __LINUX_DECNET_NETFILTER_H
   3
   4 /* DECnet-specific defines for netfilter.
   5  * This file (C) Steve Whitehouse 1999 derived from the
   6  * ipv4 netfilter header file which is
   7  * (C)1998 Rusty Russell -- This code is GPL.
   8  */
   9
  10 #include <linux/netfilter.h>
  11
  12 /* only for userspace compatibility */
  13 #ifndef __KERNEL__
  14
  15 #include <limits.h> /* for INT_MIN, INT_MAX */
  16
  17 /* IP Cache bits. */
  18 /* Src IP address. */
  19 #define NFC_DN_SRC              0x0001
  20 /* Dest IP address. */
  21 #define NFC_DN_DST              0x0002
  22 /* Input device. */
  23 #define NFC_DN_IF_IN            0x0004
  24 /* Output device. */
  25 #define NFC_DN_IF_OUT           0x0008
  26 #endif /* ! __KERNEL__ */
  27
  28 /* DECnet Hooks */
  29 /* After promisc drops, checksum checks. */
  30 #define NF_DN_PRE_ROUTING       0
  31 /* If the packet is destined for this box. */
  32 #define NF_DN_LOCAL_IN          1
  33 /* If the packet is destined for another interface. */
  34 #define NF_DN_FORWARD           2
  35 /* Packets coming from a local process. */
  36 #define NF_DN_LOCAL_OUT         3
  37 /* Packets about to hit the wire. */
  38 #define NF_DN_POST_ROUTING      4
  39 /* Input Hello Packets */
  40 #define NF_DN_HELLO             5
  41 /* Input Routing Packets */
  42 #define NF_DN_ROUTE             6
  43 #define NF_DN_NUMHOOKS          7
  44
  45 enum nf_dn_hook_priorities {
  46         NF_DN_PRI_FIRST = INT_MIN,
  47         NF_DN_PRI_CONNTRACK = -200,
  48         NF_DN_PRI_MANGLE = -150,
  49         NF_DN_PRI_NAT_DST = -100,
  50         NF_DN_PRI_FILTER = 0,
  51         NF_DN_PRI_NAT_SRC = 100,
  52         NF_DN_PRI_DNRTMSG = 200,
  53         NF_DN_PRI_LAST = INT_MAX,
  54 };
  55
  56 struct nf_dn_rtmsg {
  57         int nfdn_ifindex;
  58 };
  59
  60 #define NFDN_RTMSG(r) ((unsigned char *)(r) + NLMSG_ALIGN(sizeof(struct nf_dn_rtmsg)))
  61
  62 #ifndef __KERNEL__
  63 /* backwards compatibility for userspace */
  64 #define DNRMG_L1_GROUP 0x01
  65 #define DNRMG_L2_GROUP 0x02
  66 #endif
  67
  68 enum {
  69         DNRNG_NLGRP_NONE,
  70 #define DNRNG_NLGRP_NONE        DNRNG_NLGRP_NONE
  71         DNRNG_NLGRP_L1,
  72 #define DNRNG_NLGRP_L1          DNRNG_NLGRP_L1
  73         DNRNG_NLGRP_L2,
  74 #define DNRNG_NLGRP_L2          DNRNG_NLGRP_L2
  75         __DNRNG_NLGRP_MAX
  76 };
  77 #define DNRNG_NLGRP_MAX (__DNRNG_NLGRP_MAX - 1)
  78
  79 #endif /*__LINUX_DECNET_NETFILTER_H*/