1#ifndef __LINUX_IP_NETFILTER_H
2#define __LINUX_IP_NETFILTER_H
3
4
5
6
7
8#include <linux/netfilter.h>
9
10
11#ifndef __KERNEL__
12
13
14#define NFC_IP_SRC 0x0001
15
16#define NFC_IP_DST 0x0002
17
18#define NFC_IP_IF_IN 0x0004
19
20#define NFC_IP_IF_OUT 0x0008
21
22#define NFC_IP_TOS 0x0010
23
24#define NFC_IP_PROTO 0x0020
25
26#define NFC_IP_OPTIONS 0x0040
27
28#define NFC_IP_FRAG 0x0080
29
30
31
32#define NFC_IP_TCPFLAGS 0x0100
33
34#define NFC_IP_SRC_PT 0x0200
35
36#define NFC_IP_DST_PT 0x0400
37
38#define NFC_IP_PROTO_UNKNOWN 0x2000
39
40
41
42#define NF_IP_PRE_ROUTING 0
43
44#define NF_IP_LOCAL_IN 1
45
46#define NF_IP_FORWARD 2
47
48#define NF_IP_LOCAL_OUT 3
49
50#define NF_IP_POST_ROUTING 4
51#define NF_IP_NUMHOOKS 5
52#endif
53
54enum nf_ip_hook_priorities {
55 NF_IP_PRI_FIRST = INT_MIN,
56 NF_IP_PRI_CONNTRACK_DEFRAG = -400,
57 NF_IP_PRI_RAW = -300,
58 NF_IP_PRI_SELINUX_FIRST = -225,
59 NF_IP_PRI_CONNTRACK = -200,
60 NF_IP_PRI_MANGLE = -150,
61 NF_IP_PRI_NAT_DST = -100,
62 NF_IP_PRI_FILTER = 0,
63 NF_IP_PRI_SECURITY = 50,
64 NF_IP_PRI_NAT_SRC = 100,
65 NF_IP_PRI_SELINUX_LAST = 225,
66 NF_IP_PRI_CONNTRACK_CONFIRM = INT_MAX,
67 NF_IP_PRI_LAST = INT_MAX,
68};
69
70
71
72
73
74#define SO_ORIGINAL_DST 80
75
76#ifdef __KERNEL__
77extern int ip_route_me_harder(struct sk_buff *skb, unsigned addr_type);
78extern int ip_xfrm_me_harder(struct sk_buff *skb);
79extern __sum16 nf_ip_checksum(struct sk_buff *skb, unsigned int hook,
80 unsigned int dataoff, u_int8_t protocol);
81#endif
82
83#endif
84