LXR linux/include/net/netfilter/nf_conntrack

   1#ifndef _NF_CONNTRACK_COUNT_H
   2#define _NF_CONNTRACK_COUNT_H
   3
   4#include <linux/list.h>
   5
   6struct nf_conncount_data;
   7
   8struct 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
  14struct nf_conncount_data *nf_conncount_init(struct net *net, unsigned int family,
  15                                            unsigned int keylen);
  16void nf_conncount_destroy(struct net *net, unsigned int family,
  17                          struct nf_conncount_data *data);
  18
  19unsigned 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
  25int 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
  29void nf_conncount_list_init(struct nf_conncount_list *list);
  30
  31bool nf_conncount_gc_list(struct net *net,
  32                          struct nf_conncount_list *list);
  33
  34void nf_conncount_cache_free(struct nf_conncount_list *list);
  35
  36#endif
  37