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#ifndef _NFT_CACHE_H_
#define _NFT_CACHE_H_
enum cache_level_bits {
NFT_CACHE_TABLE_BIT = (1 << 0),
NFT_CACHE_CHAIN_BIT = (1 << 1),
NFT_CACHE_SET_BIT = (1 << 2),
NFT_CACHE_FLOWTABLE_BIT = (1 << 3),
NFT_CACHE_OBJECT_BIT = (1 << 4),
NFT_CACHE_SETELEM_BIT = (1 << 5),
NFT_CACHE_RULE_BIT = (1 << 6),
__NFT_CACHE_MAX_BIT = (1 << 7),
};
enum cache_level_flags {
NFT_CACHE_EMPTY = 0,
NFT_CACHE_TABLE = NFT_CACHE_TABLE_BIT,
NFT_CACHE_CHAIN = NFT_CACHE_TABLE_BIT |
NFT_CACHE_CHAIN_BIT,
NFT_CACHE_SET = NFT_CACHE_TABLE_BIT |
NFT_CACHE_SET_BIT,
NFT_CACHE_FLOWTABLE = NFT_CACHE_TABLE_BIT |
NFT_CACHE_FLOWTABLE_BIT,
NFT_CACHE_OBJECT = NFT_CACHE_TABLE_BIT |
NFT_CACHE_OBJECT_BIT,
NFT_CACHE_SETELEM = NFT_CACHE_TABLE_BIT |
NFT_CACHE_SET_BIT |
NFT_CACHE_SETELEM_BIT,
NFT_CACHE_RULE = NFT_CACHE_TABLE_BIT |
NFT_CACHE_CHAIN_BIT |
NFT_CACHE_RULE_BIT,
NFT_CACHE_FULL = __NFT_CACHE_MAX_BIT - 1,
NFT_CACHE_REFRESH = (1 << 29),
NFT_CACHE_UPDATE = (1 << 30),
NFT_CACHE_FLUSHED = (1 << 31),
};
static inline uint32_t djb_hash(const char *key)
{
uint32_t i, hash = 5381;
for (i = 0; i < strlen(key); i++)
hash = ((hash << 5) + hash) + key[i];
return hash;
}
#define NFT_CACHE_HSIZE 8192
struct netlink_ctx;
struct table;
struct chain;
struct handle;
int cache_init(struct netlink_ctx *ctx, unsigned int flags);
int cache_update(struct nft_ctx *nft, unsigned int flags, struct list_head *msgs);
void cache_release(struct nft_cache *cache);
struct nftnl_chain_list *chain_cache_dump(struct netlink_ctx *ctx, int *err);
void chain_cache_add(struct chain *chain, struct table *table);
struct chain *chain_cache_find(const struct table *table,
const struct handle *handle);
#endif /* _NFT_CACHE_H_ */
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