diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2020-08-20 18:21:37 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2020-08-26 18:52:28 +0200 |
| commit | 913979f882d13360cba11fd4402d193d74b0396a (patch) | |
| tree | 57a4d6846407b1457332cdcd113965a0c7644b9f /include | |
| parent | cf456cdf82b9ee64c53a23cc64cf231d58bce452 (diff) | |
src: add expression handler hashtable
netlink_parsers is actually small, but update this code to use a
hashtable instead since more expressions may come in the future.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/cache.h | 10 | ||||
| -rw-r--r-- | include/netlink.h | 3 | ||||
| -rw-r--r-- | include/rule.h | 1 |
3 files changed, 14 insertions, 0 deletions
diff --git a/include/cache.h b/include/cache.h index 213a6eaf..b9db1a8f 100644 --- a/include/cache.h +++ b/include/cache.h @@ -35,4 +35,14 @@ enum cache_level_flags { 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; +} + #endif /* _NFT_CACHE_H_ */ diff --git a/include/netlink.h b/include/netlink.h index 1077096e..ad2247e9 100644 --- a/include/netlink.h +++ b/include/netlink.h @@ -213,4 +213,7 @@ int netlink_events_trace_cb(const struct nlmsghdr *nlh, int type, enum nft_data_types dtype_map_to_kernel(const struct datatype *dtype); +void expr_handler_init(void); +void expr_handler_exit(void); + #endif /* NFTABLES_NETLINK_H */ diff --git a/include/rule.h b/include/rule.h index caca63d0..f2f82cc0 100644 --- a/include/rule.h +++ b/include/rule.h @@ -7,6 +7,7 @@ #include <netinet/in.h> #include <libnftnl/object.h> /* For NFTNL_CTTIMEOUT_ARRAY_MAX. */ #include <linux/netfilter/nf_tables.h> +#include <string.h> /** * struct handle_spec - handle ID |