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#ifndef _NF_CONNTRACK_COUNT_H
#define _NF_CONNTRACK_COUNT_H
#include <linux/list.h>
struct nf_conncount_data;
enum nf_conncount_list_add {
NF_CONNCOUNT_ADDED, /* list add was ok */
NF_CONNCOUNT_ERR, /* -ENOMEM, must drop skb */
NF_CONNCOUNT_SKIP, /* list is already reclaimed by gc */
};
struct nf_conncount_list {
spinlock_t list_lock;
struct list_head head; /* connections with the same filtering key */
unsigned int count; /* length of list */
bool dead;
};
struct nf_conncount_data *nf_conncount_init(struct net *net, unsigned int family,
unsigned int keylen);
void nf_conncount_destroy(struct net *net, unsigned int family,
struct nf_conncount_data *data);
unsigned int nf_conncount_count(struct net *net,
struct nf_conncount_data *data,
const u32 *key,
const struct nf_conntrack_tuple *tuple,
const struct nf_conntrack_zone *zone);
void nf_conncount_lookup(struct net *net, struct nf_conncount_list *list,
const struct nf_conntrack_tuple *tuple,
const struct nf_conntrack_zone *zone,
bool *addit);
void nf_conncount_list_init(struct nf_conncount_list *list);
enum nf_conncount_list_add
nf_conncount_add(struct nf_conncount_list *list,
const struct nf_conntrack_tuple *tuple,
const struct nf_conntrack_zone *zone);
bool nf_conncount_gc_list(struct net *net,
struct nf_conncount_list *list);
void nf_conncount_cache_free(struct nf_conncount_list *list);
#endif
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