xt_conntrack.h

 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*/