1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 /* IPv6-specific defines for netfilter.
3 * (C)1998 Rusty Russell -- This code is GPL.
4 * (C)1999 David Jeffery
5 * this header was blatantly ripped from netfilter_ipv4.h
6 * it's amazing what adding a bunch of 6s can do =8^)
8 #ifndef _UAPI__LINUX_IP6_NETFILTER_H
9 #define _UAPI__LINUX_IP6_NETFILTER_H
12 #include <linux/netfilter.h>
14 /* only for userspace compatibility */
17 #include <limits.h> /* for INT_MIN, INT_MAX */
21 #define NFC_IP6_SRC 0x0001
22 /* Dest IP address. */
23 #define NFC_IP6_DST 0x0002
25 #define NFC_IP6_IF_IN 0x0004
27 #define NFC_IP6_IF_OUT 0x0008
29 #define NFC_IP6_TOS 0x0010
31 #define NFC_IP6_PROTO 0x0020
33 #define NFC_IP6_OPTIONS 0x0040
35 #define NFC_IP6_FRAG 0x0080
38 /* Per-protocol information: only matters if proto match. */
40 #define NFC_IP6_TCPFLAGS 0x0100
42 #define NFC_IP6_SRC_PT 0x0200
44 #define NFC_IP6_DST_PT 0x0400
45 /* Something else about the proto */
46 #define NFC_IP6_PROTO_UNKNOWN 0x2000
49 /* After promisc drops, checksum checks. */
50 #define NF_IP6_PRE_ROUTING 0
51 /* If the packet is destined for this box. */
52 #define NF_IP6_LOCAL_IN 1
53 /* If the packet is destined for another interface. */
54 #define NF_IP6_FORWARD 2
55 /* Packets coming from a local process. */
56 #define NF_IP6_LOCAL_OUT 3
57 /* Packets about to hit the wire. */
58 #define NF_IP6_POST_ROUTING 4
59 #define NF_IP6_NUMHOOKS 5
60 #endif /* ! __KERNEL__ */
63 enum nf_ip6_hook_priorities {
64 NF_IP6_PRI_FIRST = INT_MIN,
65 NF_IP6_PRI_RAW_BEFORE_DEFRAG = -450,
66 NF_IP6_PRI_CONNTRACK_DEFRAG = -400,
67 NF_IP6_PRI_RAW = -300,
68 NF_IP6_PRI_SELINUX_FIRST = -225,
69 NF_IP6_PRI_CONNTRACK = -200,
70 NF_IP6_PRI_MANGLE = -150,
71 NF_IP6_PRI_NAT_DST = -100,
72 NF_IP6_PRI_FILTER = 0,
73 NF_IP6_PRI_SECURITY = 50,
74 NF_IP6_PRI_NAT_SRC = 100,
75 NF_IP6_PRI_SELINUX_LAST = 225,
76 NF_IP6_PRI_CONNTRACK_HELPER = 300,
77 NF_IP6_PRI_LAST = INT_MAX,
81 #endif /* _UAPI__LINUX_IP6_NETFILTER_H */