| 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
|---|
| 2 | /* IPv4-specific defines for netfilter. |
|---|
| 3 | * (C)1998 Rusty Russell -- This code is GPL. |
|---|
| 4 | */ |
|---|
| 5 | #ifndef _UAPI__LINUX_IP_NETFILTER_H |
|---|
| 6 | #define _UAPI__LINUX_IP_NETFILTER_H |
|---|
| 7 | |
|---|
| 8 | |
|---|
| 9 | #include <linux/netfilter.h> |
|---|
| 10 | |
|---|
| 11 | /* only for userspace compatibility */ |
|---|
| 12 | #ifndef __KERNEL__ |
|---|
| 13 | |
|---|
| 14 | #include <limits.h> /* for INT_MIN, INT_MAX */ |
|---|
| 15 | |
|---|
| 16 | /* IP Hooks */ |
|---|
| 17 | /* After promisc drops, checksum checks. */ |
|---|
| 18 | #define NF_IP_PRE_ROUTING 0 |
|---|
| 19 | /* If the packet is destined for this box. */ |
|---|
| 20 | #define NF_IP_LOCAL_IN 1 |
|---|
| 21 | /* If the packet is destined for another interface. */ |
|---|
| 22 | #define NF_IP_FORWARD 2 |
|---|
| 23 | /* Packets coming from a local process. */ |
|---|
| 24 | #define NF_IP_LOCAL_OUT 3 |
|---|
| 25 | /* Packets about to hit the wire. */ |
|---|
| 26 | #define NF_IP_POST_ROUTING 4 |
|---|
| 27 | #define NF_IP_NUMHOOKS 5 |
|---|
| 28 | #endif /* ! __KERNEL__ */ |
|---|
| 29 | |
|---|
| 30 | enum nf_ip_hook_priorities { |
|---|
| 31 | NF_IP_PRI_FIRST = INT_MIN, |
|---|
| 32 | NF_IP_PRI_RAW_BEFORE_DEFRAG = -450, |
|---|
| 33 | NF_IP_PRI_CONNTRACK_DEFRAG = -400, |
|---|
| 34 | NF_IP_PRI_RAW = -300, |
|---|
| 35 | NF_IP_PRI_SELINUX_FIRST = -225, |
|---|
| 36 | NF_IP_PRI_CONNTRACK = -200, |
|---|
| 37 | NF_IP_PRI_MANGLE = -150, |
|---|
| 38 | NF_IP_PRI_NAT_DST = -100, |
|---|
| 39 | NF_IP_PRI_FILTER = 0, |
|---|
| 40 | NF_IP_PRI_SECURITY = 50, |
|---|
| 41 | NF_IP_PRI_NAT_SRC = 100, |
|---|
| 42 | NF_IP_PRI_SELINUX_LAST = 225, |
|---|
| 43 | NF_IP_PRI_CONNTRACK_HELPER = 300, |
|---|
| 44 | NF_IP_PRI_CONNTRACK_CONFIRM = INT_MAX, |
|---|
| 45 | NF_IP_PRI_LAST = INT_MAX, |
|---|
| 46 | }; |
|---|
| 47 | |
|---|
| 48 | /* Arguments for setsockopt SOL_IP: */ |
|---|
| 49 | /* 2.0 firewalling went from 64 through 71 (and +256, +512, etc). */ |
|---|
| 50 | /* 2.2 firewalling (+ masq) went from 64 through 76 */ |
|---|
| 51 | /* 2.4 firewalling went 64 through 67. */ |
|---|
| 52 | #define SO_ORIGINAL_DST 80 |
|---|
| 53 | |
|---|
| 54 | |
|---|
| 55 | #endif /* _UAPI__LINUX_IP_NETFILTER_H */ |
|---|
| 56 | |
|---|
