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 */
20 #define NFC_DN_SRC 0x0001
21 /* Dest IP address. */
22 #define NFC_DN_DST 0x0002
24 #define NFC_DN_IF_IN 0x0004
26 #define NFC_DN_IF_OUT 0x0008
28 /* kernel define is in netfilter_defs.h */
29 #define NF_DN_NUMHOOKS 7
30 #endif /* ! __KERNEL__ */
33 /* After promisc drops, checksum checks. */
34 #define NF_DN_PRE_ROUTING 0
35 /* If the packet is destined for this box. */
36 #define NF_DN_LOCAL_IN 1
37 /* If the packet is destined for another interface. */
38 #define NF_DN_FORWARD 2
39 /* Packets coming from a local process. */
40 #define NF_DN_LOCAL_OUT 3
41 /* Packets about to hit the wire. */
42 #define NF_DN_POST_ROUTING 4
43 /* Input Hello Packets */
45 /* Input Routing Packets */
48 enum nf_dn_hook_priorities {
49 NF_DN_PRI_FIRST = INT_MIN,
50 NF_DN_PRI_CONNTRACK = -200,
51 NF_DN_PRI_MANGLE = -150,
52 NF_DN_PRI_NAT_DST = -100,
54 NF_DN_PRI_NAT_SRC = 100,
55 NF_DN_PRI_DNRTMSG = 200,
56 NF_DN_PRI_LAST = INT_MAX,
63 #define NFDN_RTMSG(r) ((unsigned char *)(r) + NLMSG_ALIGN(sizeof(struct nf_dn_rtmsg)))
66 /* backwards compatibility for userspace */
67 #define DNRMG_L1_GROUP 0x01
68 #define DNRMG_L2_GROUP 0x02
73 #define DNRNG_NLGRP_NONE DNRNG_NLGRP_NONE
75 #define DNRNG_NLGRP_L1 DNRNG_NLGRP_L1
77 #define DNRNG_NLGRP_L2 DNRNG_NLGRP_L2
80 #define DNRNG_NLGRP_MAX (__DNRNG_NLGRP_MAX - 1)
82 #endif /*__LINUX_DECNET_NETFILTER_H*/