include/net/netfilter/nf_conntrack_zones.h

   1 #ifndef _NF_CONNTRACK_ZONES_H
   2 #define _NF_CONNTRACK_ZONES_H
   3
   4 #include <net/netfilter/nf_conntrack_extend.h>
   5
   6 #define NF_CT_DEFAULT_ZONE      0
   7
   8 struct nf_conntrack_zone {
   9         u16     id;
  10 };
  11
  12 static inline u16 nf_ct_zone(const struct nf_conn *ct)
  13 {
  14 #ifdef CONFIG_NF_CONNTRACK_ZONES
  15         struct nf_conntrack_zone *nf_ct_zone;
  16         nf_ct_zone = nf_ct_ext_find(ct, NF_CT_EXT_ZONE);
  17         if (nf_ct_zone)
  18                 return nf_ct_zone->id;
  19 #endif
  20         return NF_CT_DEFAULT_ZONE;
  21 }
  22
  23 #endif /* _NF_CONNTRACK_ZONES_H */