1/* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */
2/* Header file for kernel module to match connection tracking information.
3 * GPL (C) 2001 Marc Boucher (marc@mbsi.ca).
4 */
5
6#ifndef _XT_CONNTRACK_H
7#define _XT_CONNTRACK_H
8
9#include <linux/types.h>
10#include <linux/netfilter.h>
11#include <linux/netfilter/nf_conntrack_tuple_common.h>
12
13#define XT_CONNTRACK_STATE_BIT(ctinfo) (1 << ((ctinfo)%IP_CT_IS_REPLY+1))
14#define XT_CONNTRACK_STATE_INVALID (1 << 0)
15
16#define XT_CONNTRACK_STATE_SNAT (1 << (IP_CT_NUMBER + 1))
17#define XT_CONNTRACK_STATE_DNAT (1 << (IP_CT_NUMBER + 2))
18#define XT_CONNTRACK_STATE_UNTRACKED (1 << (IP_CT_NUMBER + 3))
19
20/* flags, invflags: */
21enum {
22 XT_CONNTRACK_STATE = 1 << 0,
23 XT_CONNTRACK_PROTO = 1 << 1,
24 XT_CONNTRACK_ORIGSRC = 1 << 2,
25 XT_CONNTRACK_ORIGDST = 1 << 3,
26 XT_CONNTRACK_REPLSRC = 1 << 4,
27 XT_CONNTRACK_REPLDST = 1 << 5,
28 XT_CONNTRACK_STATUS = 1 << 6,
29 XT_CONNTRACK_EXPIRES = 1 << 7,
30 XT_CONNTRACK_ORIGSRC_PORT = 1 << 8,
31 XT_CONNTRACK_ORIGDST_PORT = 1 << 9,
32 XT_CONNTRACK_REPLSRC_PORT = 1 << 10,
33 XT_CONNTRACK_REPLDST_PORT = 1 << 11,
34 XT_CONNTRACK_DIRECTION = 1 << 12,
35 XT_CONNTRACK_STATE_ALIAS = 1 << 13,
36};
37
38struct xt_conntrack_mtinfo1 {
39 union nf_inet_addr origsrc_addr, origsrc_mask;
40 union nf_inet_addr origdst_addr, origdst_mask;
41 union nf_inet_addr replsrc_addr, replsrc_mask;
42 union nf_inet_addr repldst_addr, repldst_mask;
43 __u32 expires_min, expires_max;
44 __u16 l4proto;
45 __be16 origsrc_port, origdst_port;
46 __be16 replsrc_port, repldst_port;
47 __u16 match_flags, invert_flags;
48 __u8 state_mask, status_mask;
49};
50
51struct xt_conntrack_mtinfo2 {
52 union nf_inet_addr origsrc_addr, origsrc_mask;
53 union nf_inet_addr origdst_addr, origdst_mask;
54 union nf_inet_addr replsrc_addr, replsrc_mask;
55 union nf_inet_addr repldst_addr, repldst_mask;
56 __u32 expires_min, expires_max;
57 __u16 l4proto;
58 __be16 origsrc_port, origdst_port;
59 __be16 replsrc_port, repldst_port;
60 __u16 match_flags, invert_flags;
61 __u16 state_mask, status_mask;
62};
63
64struct xt_conntrack_mtinfo3 {
65 union nf_inet_addr origsrc_addr, origsrc_mask;
66 union nf_inet_addr origdst_addr, origdst_mask;
67 union nf_inet_addr replsrc_addr, replsrc_mask;
68 union nf_inet_addr repldst_addr, repldst_mask;
69 __u32 expires_min, expires_max;
70 __u16 l4proto;
71 __u16 origsrc_port, origdst_port;
72 __u16 replsrc_port, repldst_port;
73 __u16 match_flags, invert_flags;
74 __u16 state_mask, status_mask;
75 __u16 origsrc_port_high, origdst_port_high;
76 __u16 replsrc_port_high, repldst_port_high;
77};
78
79#endif /*_XT_CONNTRACK_H*/
80