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-rw-r--r--include/net/netfilter/nf_conntrack_count.h17
1 files changed, 13 insertions, 4 deletions
diff --git a/include/net/netfilter/nf_conntrack_count.h b/include/net/netfilter/nf_conntrack_count.h
index dbec17f674b7..4b2b2baf8ab4 100644
--- a/include/net/netfilter/nf_conntrack_count.h
+++ b/include/net/netfilter/nf_conntrack_count.h
@@ -5,9 +5,17 @@
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,
@@ -28,11 +36,12 @@ void nf_conncount_lookup(struct net *net, struct nf_conncount_list *list,
void nf_conncount_list_init(struct nf_conncount_list *list);
-bool nf_conncount_add(struct nf_conncount_list *list,
- const struct nf_conntrack_tuple *tuple,
- const struct nf_conntrack_zone *zone);
+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);
-void nf_conncount_gc_list(struct net *net,
+bool nf_conncount_gc_list(struct net *net,
struct nf_conncount_list *list);
void nf_conncount_cache_free(struct nf_conncount_list *list);
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