xt_conntrack.h revision 350661a6eb089f3e54e67e022db9e16ea280499f 
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/nf_conntrack_tuple_common.h>
10
11#define XT_CONNTRACK_STATE_BIT(ctinfo) (1 << ((ctinfo)%IP_CT_IS_REPLY+1))
12#define XT_CONNTRACK_STATE_INVALID (1 << 0)
13
14#define XT_CONNTRACK_STATE_SNAT (1 << (IP_CT_NUMBER + 1))
15#define XT_CONNTRACK_STATE_DNAT (1 << (IP_CT_NUMBER + 2))
16#define XT_CONNTRACK_STATE_UNTRACKED (1 << (IP_CT_NUMBER + 3))
17
18/* flags, invflags: */
19enum {
20	XT_CONNTRACK_STATE        = 1 << 0,
21	XT_CONNTRACK_PROTO        = 1 << 1,
22	XT_CONNTRACK_ORIGSRC      = 1 << 2,
23	XT_CONNTRACK_ORIGDST      = 1 << 3,
24	XT_CONNTRACK_REPLSRC      = 1 << 4,
25	XT_CONNTRACK_REPLDST      = 1 << 5,
26	XT_CONNTRACK_STATUS       = 1 << 6,
27	XT_CONNTRACK_EXPIRES      = 1 << 7,
28	XT_CONNTRACK_ORIGSRC_PORT = 1 << 8,
29	XT_CONNTRACK_ORIGDST_PORT = 1 << 9,
30	XT_CONNTRACK_REPLSRC_PORT = 1 << 10,
31	XT_CONNTRACK_REPLDST_PORT = 1 << 11,
32	XT_CONNTRACK_DIRECTION    = 1 << 12,
33};
34
35struct xt_conntrack_mtinfo1 {
36	union nf_inet_addr origsrc_addr, origsrc_mask;
37	union nf_inet_addr origdst_addr, origdst_mask;
38	union nf_inet_addr replsrc_addr, replsrc_mask;
39	union nf_inet_addr repldst_addr, repldst_mask;
40	__u32 expires_min, expires_max;
41	__u16 l4proto;
42	__be16 origsrc_port, origdst_port;
43	__be16 replsrc_port, repldst_port;
44	__u16 match_flags, invert_flags;
45	__u8 state_mask, status_mask;
46};
47
48struct xt_conntrack_mtinfo2 {
49	union nf_inet_addr origsrc_addr, origsrc_mask;
50	union nf_inet_addr origdst_addr, origdst_mask;
51	union nf_inet_addr replsrc_addr, replsrc_mask;
52	union nf_inet_addr repldst_addr, repldst_mask;
53	__u32 expires_min, expires_max;
54	__u16 l4proto;
55	__be16 origsrc_port, origdst_port;
56	__be16 replsrc_port, repldst_port;
57	__u16 match_flags, invert_flags;
58	__u16 state_mask, status_mask;
59};
60
61#endif /*_XT_CONNTRACK_H*/
62