1 #ifndef _NF_CONNTRACK_COUNT_H
2 #define _NF_CONNTRACK_COUNT_H
4 #include <linux/list.h>
5 #include <linux/spinlock.h>
6 #include <net/netfilter/nf_conntrack_tuple.h>
7 #include <net/netfilter/nf_conntrack_zones.h>
9 struct nf_conncount_data;
11 struct nf_conncount_list {
13 u32 last_gc; /* jiffies at most recent gc */
14 struct list_head head; /* connections with the same filtering key */
15 unsigned int count; /* length of list */
18 struct nf_conncount_data *nf_conncount_init(struct net *net, unsigned int family,
20 void nf_conncount_destroy(struct net *net, unsigned int family,
21 struct nf_conncount_data *data);
23 unsigned int nf_conncount_count(struct net *net,
24 struct nf_conncount_data *data,
26 const struct nf_conntrack_tuple *tuple,
27 const struct nf_conntrack_zone *zone);
29 int nf_conncount_add(struct net *net, struct nf_conncount_list *list,
30 const struct nf_conntrack_tuple *tuple,
31 const struct nf_conntrack_zone *zone);
33 void nf_conncount_list_init(struct nf_conncount_list *list);
35 bool nf_conncount_gc_list(struct net *net,
36 struct nf_conncount_list *list);
38 void nf_conncount_cache_free(struct nf_conncount_list *list);