LXR linux/include/uapi/linux/netfilter/xt

   1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2#ifndef _XT_POLICY_H
   3#define _XT_POLICY_H
   4
   5#include <linux/types.h>
   6#include <linux/in.h>
   7#include <linux/in6.h>
   8
   9#define XT_POLICY_MAX_ELEM      4
  10
  11enum xt_policy_flags {
  12        XT_POLICY_MATCH_IN      = 0x1,
  13        XT_POLICY_MATCH_OUT     = 0x2,
  14        XT_POLICY_MATCH_NONE    = 0x4,
  15        XT_POLICY_MATCH_STRICT  = 0x8,
  16};
  17
  18enum xt_policy_modes {
  19        XT_POLICY_MODE_TRANSPORT,
  20        XT_POLICY_MODE_TUNNEL
  21};
  22
  23struct xt_policy_spec {
  24        __u8    saddr:1,
  25                        daddr:1,
  26                        proto:1,
  27                        mode:1,
  28                        spi:1,
  29                        reqid:1;
  30};
  31
  32#ifndef __KERNEL__
  33union xt_policy_addr {
  34        struct in_addr  a4;
  35        struct in6_addr a6;
  36};
  37#endif
  38
  39struct xt_policy_elem {
  40        union {
  41#ifdef __KERNEL__
  42                struct {
  43                        union nf_inet_addr saddr;
  44                        union nf_inet_addr smask;
  45                        union nf_inet_addr daddr;
  46                        union nf_inet_addr dmask;
  47                };
  48#else
  49                struct {
  50                        union xt_policy_addr saddr;
  51                        union xt_policy_addr smask;
  52                        union xt_policy_addr daddr;
  53                        union xt_policy_addr dmask;
  54                };
  55#endif
  56        };
  57        __be32                  spi;
  58        __u32           reqid;
  59        __u8            proto;
  60        __u8            mode;
  61
  62        struct xt_policy_spec   match;
  63        struct xt_policy_spec   invert;
  64};
  65
  66struct xt_policy_info {
  67        struct xt_policy_elem pol[XT_POLICY_MAX_ELEM];
  68        __u16 flags;
  69        __u16 len;
  70};
  71
  72#endif /* _XT_POLICY_H */
  73