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/netfilter.h>
   6#include <linux/types.h>
   7#include <linux/in.h>
   8#include <linux/in6.h>
   9
  10#define XT_POLICY_MAX_ELEM      4
  11
  12enum xt_policy_flags {
  13        XT_POLICY_MATCH_IN      = 0x1,
  14        XT_POLICY_MATCH_OUT     = 0x2,
  15        XT_POLICY_MATCH_NONE    = 0x4,
  16        XT_POLICY_MATCH_STRICT  = 0x8,
  17};
  18
  19enum xt_policy_modes {
  20        XT_POLICY_MODE_TRANSPORT,
  21        XT_POLICY_MODE_TUNNEL
  22};
  23
  24struct xt_policy_spec {
  25        __u8    saddr:1,
  26                        daddr:1,
  27                        proto:1,
  28                        mode:1,
  29                        spi:1,
  30                        reqid:1;
  31};
  32
  33#ifndef __KERNEL__
  34union xt_policy_addr {
  35        struct in_addr  a4;
  36        struct in6_addr a6;
  37};
  38#endif
  39
  40struct xt_policy_elem {
  41        union {
  42#ifdef __KERNEL__
  43                struct {
  44                        union nf_inet_addr saddr;
  45                        union nf_inet_addr smask;
  46                        union nf_inet_addr daddr;
  47                        union nf_inet_addr dmask;
  48                };
  49#else
  50                struct {
  51                        union xt_policy_addr saddr;
  52                        union xt_policy_addr smask;
  53                        union xt_policy_addr daddr;
  54                        union xt_policy_addr dmask;
  55                };
  56#endif
  57        };
  58        __be32                  spi;
  59        __u32           reqid;
  60        __u8            proto;
  61        __u8            mode;
  62
  63        struct xt_policy_spec   match;
  64        struct xt_policy_spec   invert;
  65};
  66
  67struct xt_policy_info {
  68        struct xt_policy_elem pol[XT_POLICY_MAX_ELEM];
  69        __u16 flags;
  70        __u16 len;
  71};
  72
  73#endif /* _XT_POLICY_H */
  74