root/include/uapi/linux/netfilter/xt_conntrack.h

INCLUDED FROM

   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: */
  21 enum {
  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 
  38 struct 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 
  51 struct 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 
  64 struct 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*/