usr/include/linux/netfilter/xt_policy.h

   1 #ifndef _XT_POLICY_H
   2 #define _XT_POLICY_H
   3
   4 #include <linux/types.h>
   5
   6 #define XT_POLICY_MAX_ELEM      4
   7
   8 enum xt_policy_flags {
   9         XT_POLICY_MATCH_IN      = 0x1,
  10         XT_POLICY_MATCH_OUT     = 0x2,
  11         XT_POLICY_MATCH_NONE    = 0x4,
  12         XT_POLICY_MATCH_STRICT  = 0x8,
  13 };
  14
  15 enum xt_policy_modes {
  16         XT_POLICY_MODE_TRANSPORT,
  17         XT_POLICY_MODE_TUNNEL
  18 };
  19
  20 struct xt_policy_spec {
  21         __u8    saddr:1,
  22                         daddr:1,
  23                         proto:1,
  24                         mode:1,
  25                         spi:1,
  26                         reqid:1;
  27 };
  28
  29 union xt_policy_addr {
  30         struct in_addr  a4;
  31         struct in6_addr a6;
  32 };
  33
  34 struct xt_policy_elem {
  35         union {
  36                 struct {
  37                         union xt_policy_addr saddr;
  38                         union xt_policy_addr smask;
  39                         union xt_policy_addr daddr;
  40                         union xt_policy_addr dmask;
  41                 };
  42         };
  43         __be32                  spi;
  44         __u32           reqid;
  45         __u8            proto;
  46         __u8            mode;
  47
  48         struct xt_policy_spec   match;
  49         struct xt_policy_spec   invert;
  50 };
  51
  52 struct xt_policy_info {
  53         struct xt_policy_elem pol[XT_POLICY_MAX_ELEM];
  54         __u16 flags;
  55         __u16 len;
  56 };
  57
  58 #endif /* _XT_POLICY_H */