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 /* IP Cache bits. */ 19 /* Src IP address. */ 20 #define NFC_DN_SRC 0x0001 21 /* Dest IP address. */ 22 #define NFC_DN_DST 0x0002 23 /* Input device. */ 24 #define NFC_DN_IF_IN 0x0004 25 /* Output device. */ 26 #define NFC_DN_IF_OUT 0x0008 27 #endif /* ! __KERNEL__ */ 28 29 /* DECnet Hooks */ 30 /* After promisc drops, checksum checks. */ 31 #define NF_DN_PRE_ROUTING 0 32 /* If the packet is destined for this box. */ 33 #define NF_DN_LOCAL_IN 1 34 /* If the packet is destined for another interface. */ 35 #define NF_DN_FORWARD 2 36 /* Packets coming from a local process. */ 37 #define NF_DN_LOCAL_OUT 3 38 /* Packets about to hit the wire. */ 39 #define NF_DN_POST_ROUTING 4 40 /* Input Hello Packets */ 41 #define NF_DN_HELLO 5 42 /* Input Routing Packets */ 43 #define NF_DN_ROUTE 6 44 #define NF_DN_NUMHOOKS 7 45 46 enum nf_dn_hook_priorities { 47 NF_DN_PRI_FIRST = INT_MIN, 48 NF_DN_PRI_CONNTRACK = -200, 49 NF_DN_PRI_MANGLE = -150, 50 NF_DN_PRI_NAT_DST = -100, 51 NF_DN_PRI_FILTER = 0, 52 NF_DN_PRI_NAT_SRC = 100, 53 NF_DN_PRI_DNRTMSG = 200, 54 NF_DN_PRI_LAST = INT_MAX, 55 }; 56 57 struct nf_dn_rtmsg { 58 int nfdn_ifindex; 59 }; 60 61 #define NFDN_RTMSG(r) ((unsigned char *)(r) + NLMSG_ALIGN(sizeof(struct nf_dn_rtmsg))) 62 63 #ifndef __KERNEL__ 64 /* backwards compatibility for userspace */ 65 #define DNRMG_L1_GROUP 0x01 66 #define DNRMG_L2_GROUP 0x02 67 #endif 68 69 enum { 70 DNRNG_NLGRP_NONE, 71 #define DNRNG_NLGRP_NONE DNRNG_NLGRP_NONE 72 DNRNG_NLGRP_L1, 73 #define DNRNG_NLGRP_L1 DNRNG_NLGRP_L1 74 DNRNG_NLGRP_L2, 75 #define DNRNG_NLGRP_L2 DNRNG_NLGRP_L2 76 __DNRNG_NLGRP_MAX 77 }; 78 #define DNRNG_NLGRP_MAX (__DNRNG_NLGRP_MAX - 1) 79 80 #endif /*__LINUX_DECNET_NETFILTER_H*/ 81