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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /include/net/netfilter/nf_conntrack_count.h | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/net/netfilter/nf_conntrack_count.h')
-rw-r--r-- | include/net/netfilter/nf_conntrack_count.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/include/net/netfilter/nf_conntrack_count.h b/include/net/netfilter/nf_conntrack_count.h new file mode 100644 index 000000000..e227d997f --- /dev/null +++ b/include/net/netfilter/nf_conntrack_count.h @@ -0,0 +1,40 @@ +#ifndef _NF_CONNTRACK_COUNT_H +#define _NF_CONNTRACK_COUNT_H + +#include <linux/list.h> +#include <linux/spinlock.h> +#include <net/netfilter/nf_conntrack_tuple.h> +#include <net/netfilter/nf_conntrack_zones.h> + +struct nf_conncount_data; + +struct nf_conncount_list { + spinlock_t list_lock; + u32 last_gc; /* jiffies at most recent gc */ + struct list_head head; /* connections with the same filtering key */ + unsigned int count; /* length of list */ +}; + +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); + +int nf_conncount_add(struct net *net, struct nf_conncount_list *list, + const struct nf_conntrack_tuple *tuple, + const struct nf_conntrack_zone *zone); + +void nf_conncount_list_init(struct nf_conncount_list *list); + +bool nf_conncount_gc_list(struct net *net, + struct nf_conncount_list *list); + +void nf_conncount_cache_free(struct nf_conncount_list *list); + +#endif |