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| 1 | #ifndef _NF_CONNTRACK_COUNT_H |
|---|---|
| 2 | #define _NF_CONNTRACK_COUNT_H |
| 3 | |
| 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> |
| 8 | |
| 9 | struct nf_conncount_data; |
| 10 | |
| 11 | struct nf_conncount_list { |
| 12 | spinlock_t list_lock; |
| 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 */ |
| 16 | }; |
| 17 | |
| 18 | struct nf_conncount_data *nf_conncount_init(struct net *net, unsigned int family, |
| 19 | unsigned int keylen); |
| 20 | void nf_conncount_destroy(struct net *net, unsigned int family, |
| 21 | struct nf_conncount_data *data); |
| 22 | |
| 23 | unsigned int nf_conncount_count(struct net *net, |
| 24 | struct nf_conncount_data *data, |
| 25 | const u32 *key, |
| 26 | const struct nf_conntrack_tuple *tuple, |
| 27 | const struct nf_conntrack_zone *zone); |
| 28 | |
| 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); |
| 32 | |
| 33 | void nf_conncount_list_init(struct nf_conncount_list *list); |
| 34 | |
| 35 | bool nf_conncount_gc_list(struct net *net, |
| 36 | struct nf_conncount_list *list); |
| 37 | |
| 38 | void nf_conncount_cache_free(struct nf_conncount_list *list); |
| 39 | |
| 40 | #endif |
| 41 |
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