1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 #ifndef __LINUX_DECNET_NETFILTER_H
3 #define __LINUX_DECNET_NETFILTER_H
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.
11 #include <linux/netfilter.h>
13 /* only for userspace compatibility */
16 #include <limits.h> /* for INT_MIN, INT_MAX */
18 /* kernel define is in netfilter_defs.h */
19 #define NF_DN_NUMHOOKS 7
20 #endif /* ! __KERNEL__ */
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 */
35 /* Input Routing Packets */
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,
44 NF_DN_PRI_NAT_SRC = 100,
45 NF_DN_PRI_DNRTMSG = 200,
46 NF_DN_PRI_LAST = INT_MAX,
53 #define NFDN_RTMSG(r) ((unsigned char *)(r) + NLMSG_ALIGN(sizeof(struct nf_dn_rtmsg)))
56 /* backwards compatibility for userspace */
57 #define DNRMG_L1_GROUP 0x01
58 #define DNRMG_L2_GROUP 0x02
63 #define DNRNG_NLGRP_NONE DNRNG_NLGRP_NONE
65 #define DNRNG_NLGRP_L1 DNRNG_NLGRP_L1
67 #define DNRNG_NLGRP_L2 DNRNG_NLGRP_L2
70 #define DNRNG_NLGRP_MAX (__DNRNG_NLGRP_MAX - 1)
72 #endif /*__LINUX_DECNET_NETFILTER_H*/