1/* Header file for kernel module to match connection tracking information.
2 * GPL (C) 2001  Marc Boucher (marc@mbsi.ca).
3 */
4
5#ifndef _XT_CONNTRACK_H
6#define _XT_CONNTRACK_H
7
8#include <linux/types.h>
9#include <linux/netfilter.h>
10#include <linux/netfilter/nf_conntrack_tuple_common.h>
11
12#define XT_CONNTRACK_STATE_BIT(ctinfo) (1 << ((ctinfo)%IP_CT_IS_REPLY+1))
13#define XT_CONNTRACK_STATE_INVALID (1 << 0)
14
15#define XT_CONNTRACK_STATE_SNAT (1 << (IP_CT_NUMBER + 1))
16#define XT_CONNTRACK_STATE_DNAT (1 << (IP_CT_NUMBER + 2))
17#define XT_CONNTRACK_STATE_UNTRACKED (1 << (IP_CT_NUMBER + 3))
18
19/* flags, invflags: */
20enum {
21	XT_CONNTRACK_STATE        = 1 << 0,
22	XT_CONNTRACK_PROTO        = 1 << 1,
23	XT_CONNTRACK_ORIGSRC      = 1 << 2,
24	XT_CONNTRACK_ORIGDST      = 1 << 3,
25	XT_CONNTRACK_REPLSRC      = 1 << 4,
26	XT_CONNTRACK_REPLDST      = 1 << 5,
27	XT_CONNTRACK_STATUS       = 1 << 6,
28	XT_CONNTRACK_EXPIRES      = 1 << 7,
29	XT_CONNTRACK_ORIGSRC_PORT = 1 << 8,
30	XT_CONNTRACK_ORIGDST_PORT = 1 << 9,
31	XT_CONNTRACK_REPLSRC_PORT = 1 << 10,
32	XT_CONNTRACK_REPLDST_PORT = 1 << 11,
33	XT_CONNTRACK_DIRECTION    = 1 << 12,
34	XT_CONNTRACK_STATE_ALIAS  = 1 << 13,
35};
36
37struct xt_conntrack_mtinfo1 {
38	union nf_inet_addr origsrc_addr, origsrc_mask;
39	union nf_inet_addr origdst_addr, origdst_mask;
40	union nf_inet_addr replsrc_addr, replsrc_mask;
41	union nf_inet_addr repldst_addr, repldst_mask;
42	__u32 expires_min, expires_max;
43	__u16 l4proto;
44	__be16 origsrc_port, origdst_port;
45	__be16 replsrc_port, repldst_port;
46	__u16 match_flags, invert_flags;
47	__u8 state_mask, status_mask;
48};
49
50struct xt_conntrack_mtinfo2 {
51	union nf_inet_addr origsrc_addr, origsrc_mask;
52	union nf_inet_addr origdst_addr, origdst_mask;
53	union nf_inet_addr replsrc_addr, replsrc_mask;
54	union nf_inet_addr repldst_addr, repldst_mask;
55	__u32 expires_min, expires_max;
56	__u16 l4proto;
57	__be16 origsrc_port, origdst_port;
58	__be16 replsrc_port, repldst_port;
59	__u16 match_flags, invert_flags;
60	__u16 state_mask, status_mask;
61};
62
63struct xt_conntrack_mtinfo3 {
64	union nf_inet_addr origsrc_addr, origsrc_mask;
65	union nf_inet_addr origdst_addr, origdst_mask;
66	union nf_inet_addr replsrc_addr, replsrc_mask;
67	union nf_inet_addr repldst_addr, repldst_mask;
68	__u32 expires_min, expires_max;
69	__u16 l4proto;
70	__u16 origsrc_port, origdst_port;
71	__u16 replsrc_port, repldst_port;
72	__u16 match_flags, invert_flags;
73	__u16 state_mask, status_mask;
74	__u16 origsrc_port_high, origdst_port_high;
75	__u16 replsrc_port_high, repldst_port_high;
76};
77
78#endif /*_XT_CONNTRACK_H*/
79