release/src-rt-6.x.4708/linux/linux-2.6.36/include/net/netfilter/nf_conntrack_zones.h

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