uapi/linux/netfilter_ipv6.h

0001 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
0002 /* IPv6-specific defines for netfilter.
0003  * (C)1998 Rusty Russell -- This code is GPL.
0004  * (C)1999 David Jeffery
0005  *   this header was blatantly ripped from netfilter_ipv4.h
0006  *   it's amazing what adding a bunch of 6s can do =8^)
0007  */
0008 #ifndef _UAPI__LINUX_IP6_NETFILTER_H
0009 #define _UAPI__LINUX_IP6_NETFILTER_H
0010
0011
0012 #include <linux/netfilter.h>
0013
0014 /* only for userspace compatibility */
0015 #ifndef __KERNEL__
0016
0017 #include <limits.h> /* for INT_MIN, INT_MAX */
0018
0019 /* IP6 Hooks */
0020 /* After promisc drops, checksum checks. */
0021 #define NF_IP6_PRE_ROUTING  0
0022 /* If the packet is destined for this box. */
0023 #define NF_IP6_LOCAL_IN     1
0024 /* If the packet is destined for another interface. */
0025 #define NF_IP6_FORWARD      2
0026 /* Packets coming from a local process. */
0027 #define NF_IP6_LOCAL_OUT        3
0028 /* Packets about to hit the wire. */
0029 #define NF_IP6_POST_ROUTING 4
0030 #define NF_IP6_NUMHOOKS     5
0031 #endif /* ! __KERNEL__ */
0032
0033
0034 enum nf_ip6_hook_priorities {
0035     NF_IP6_PRI_FIRST = INT_MIN,
0036     NF_IP6_PRI_RAW_BEFORE_DEFRAG = -450,
0037     NF_IP6_PRI_CONNTRACK_DEFRAG = -400,
0038     NF_IP6_PRI_RAW = -300,
0039     NF_IP6_PRI_SELINUX_FIRST = -225,
0040     NF_IP6_PRI_CONNTRACK = -200,
0041     NF_IP6_PRI_MANGLE = -150,
0042     NF_IP6_PRI_NAT_DST = -100,
0043     NF_IP6_PRI_FILTER = 0,
0044     NF_IP6_PRI_SECURITY = 50,
0045     NF_IP6_PRI_NAT_SRC = 100,
0046     NF_IP6_PRI_SELINUX_LAST = 225,
0047     NF_IP6_PRI_CONNTRACK_HELPER = 300,
0048     NF_IP6_PRI_LAST = INT_MAX,
0049 };
0050
0051
0052 #endif /* _UAPI__LINUX_IP6_NETFILTER_H */