1 /* Header file for kernel module to match connection tracking information.
2 * GPL (C) 2001 Marc Boucher (marc@mbsi.ca).
5 #ifndef _XT_CONNTRACK_H
6 #define _XT_CONNTRACK_H
8 #include <linux/types.h>
9 #include <linux/netfilter/nf_conntrack_tuple_common.h>
11 #define XT_CONNTRACK_STATE_BIT(ctinfo) (1 << ((ctinfo)%IP_CT_IS_REPLY+1))
12 #define XT_CONNTRACK_STATE_INVALID (1 << 0)
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))
18 /* flags, invflags: */
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,
35 /* This is exposed to userspace, so remains frozen in time. */
36 struct ip_conntrack_old_tuple
56 struct xt_conntrack_info
58 unsigned int statemask, statusmask;
60 struct ip_conntrack_old_tuple tuple[IP_CT_DIR_MAX];
61 struct in_addr sipmsk[IP_CT_DIR_MAX], dipmsk[IP_CT_DIR_MAX];
63 unsigned long expires_min, expires_max;
71 struct xt_conntrack_mtinfo1 {
72 union nf_inet_addr origsrc_addr, origsrc_mask;
73 union nf_inet_addr origdst_addr, origdst_mask;
74 union nf_inet_addr replsrc_addr, replsrc_mask;
75 union nf_inet_addr repldst_addr, repldst_mask;
76 __u32 expires_min, expires_max;
78 __be16 origsrc_port, origdst_port;
79 __be16 replsrc_port, repldst_port;
80 __u16 match_flags, invert_flags;
81 __u8 state_mask, status_mask;
84 #endif /*_XT_CONNTRACK_H*/