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1 #ifndef __LINUX_IP6_NETFILTER_H
2 #define __LINUX_IP6_NETFILTER_H
3 
4 /* IPv6-specific defines for netfilter.
5  * (C)1998 Rusty Russell -- This code is GPL.
6  * (C)1999 David Jeffery
7  *   this header was blatantly ripped from netfilter_ipv4.h
8  *   it's amazing what adding a bunch of 6s can do =8^)
9  */
10 
11 #include <linux/netfilter.h>
12 
13 /* only for userspace compatibility */
14 /* IP Cache bits. */
15 /* Src IP address. */
16 #define NFC_IP6_SRC              0x0001
17 /* Dest IP address. */
18 #define NFC_IP6_DST              0x0002
19 /* Input device. */
20 #define NFC_IP6_IF_IN            0x0004
21 /* Output device. */
22 #define NFC_IP6_IF_OUT           0x0008
23 /* TOS. */
24 #define NFC_IP6_TOS              0x0010
25 /* Protocol. */
26 #define NFC_IP6_PROTO            0x0020
27 /* IP options. */
28 #define NFC_IP6_OPTIONS          0x0040
29 /* Frag & flags. */
30 #define NFC_IP6_FRAG             0x0080
31 
32 
33 /* Per-protocol information: only matters if proto match. */
34 /* TCP flags. */
35 #define NFC_IP6_TCPFLAGS         0x0100
36 /* Source port. */
37 #define NFC_IP6_SRC_PT           0x0200
38 /* Dest port. */
39 #define NFC_IP6_DST_PT           0x0400
40 /* Something else about the proto */
41 #define NFC_IP6_PROTO_UNKNOWN    0x2000
42 
43 /* IP6 Hooks */
44 /* After promisc drops, checksum checks. */
45 #define NF_IP6_PRE_ROUTING	0
46 /* If the packet is destined for this box. */
47 #define NF_IP6_LOCAL_IN		1
48 /* If the packet is destined for another interface. */
49 #define NF_IP6_FORWARD		2
50 /* Packets coming from a local process. */
51 #define NF_IP6_LOCAL_OUT		3
52 /* Packets about to hit the wire. */
53 #define NF_IP6_POST_ROUTING	4
54 #define NF_IP6_NUMHOOKS		5
55 
56 
57 enum nf_ip6_hook_priorities {
58 	NF_IP6_PRI_FIRST = INT_MIN,
59 	NF_IP6_PRI_CONNTRACK_DEFRAG = -400,
60 	NF_IP6_PRI_RAW = -300,
61 	NF_IP6_PRI_SELINUX_FIRST = -225,
62 	NF_IP6_PRI_CONNTRACK = -200,
63 	NF_IP6_PRI_MANGLE = -150,
64 	NF_IP6_PRI_NAT_DST = -100,
65 	NF_IP6_PRI_FILTER = 0,
66 	NF_IP6_PRI_SECURITY = 50,
67 	NF_IP6_PRI_NAT_SRC = 100,
68 	NF_IP6_PRI_SELINUX_LAST = 225,
69 	NF_IP6_PRI_LAST = INT_MAX,
70 };
71 
72 
73 #endif /*__LINUX_IP6_NETFILTER_H*/
74