include/net/netfilter/nf_conntrack_count.h

   1 #ifndef _NF_CONNTRACK_COUNT_H
   2 #define _NF_CONNTRACK_COUNT_H
   3
   4 #include <linux/list.h>
   5
   6 struct nf_conncount_data;
   7
   8 struct nf_conncount_list {
   9         spinlock_t list_lock;
  10         struct list_head head;  /* connections with the same filtering key */
  11         unsigned int count;     /* length of list */
  12 };
  13
  14 struct nf_conncount_data *nf_conncount_init(struct net *net, unsigned int family,
  15                                             unsigned int keylen);
  16 void nf_conncount_destroy(struct net *net, unsigned int family,
  17                           struct nf_conncount_data *data);
  18
  19 unsigned int nf_conncount_count(struct net *net,
  20                                 struct nf_conncount_data *data,
  21                                 const u32 *key,
  22                                 const struct nf_conntrack_tuple *tuple,
  23                                 const struct nf_conntrack_zone *zone);
  24
  25 int nf_conncount_add(struct net *net, struct nf_conncount_list *list,
  26                      const struct nf_conntrack_tuple *tuple,
  27                      const struct nf_conntrack_zone *zone);
  28
  29 void nf_conncount_list_init(struct nf_conncount_list *list);
  30
  31 bool nf_conncount_gc_list(struct net *net,
  32                           struct nf_conncount_list *list);
  33
  34 void nf_conncount_cache_free(struct nf_conncount_list *list);
  35
  36 #endif