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| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2016-11-28 00:06:00 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2016-12-07 13:22:47 +0100 |
| commit | 8aeff920dcc9b3f8cf43042a76428582634d9208 (patch) | |
| tree | edb2a7125951aba913d0a97c6093c4abc8e06570 /include/net | |
| parent | 1896531710abcd9a961a17d0c5c6a9f537d479b6 (diff) | |
| download | linux-0-day-8aeff920dcc9b3f8cf43042a76428582634d9208.tar.gz linux-0-day-8aeff920dcc9b3f8cf43042a76428582634d9208.tar.xz | |
netfilter: nf_tables: add stateful object reference to set elements
This patch allows you to refer to stateful objects from set elements.
This provides the infrastructure to create maps where the right hand
side of the mapping is a stateful object.
This allows us to build dictionaries of stateful objects, that you can
use to perform fast lookups using any arbitrary key combination.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/netfilter/nf_tables.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h index ce6fb6e83b32e..85f0f03f1e874 100644 --- a/include/net/netfilter/nf_tables.h +++ b/include/net/netfilter/nf_tables.h @@ -326,6 +326,7 @@ void nft_unregister_set(struct nft_set_ops *ops); * @name: name of the set * @ktype: key type (numeric type defined by userspace, not used in the kernel) * @dtype: data type (verdict or numeric type defined by userspace) + * @objtype: object type (see NFT_OBJECT_* definitions) * @size: maximum set size * @nelems: number of elements * @ndeact: number of deactivated elements queued for removal @@ -347,6 +348,7 @@ struct nft_set { char name[NFT_SET_MAXNAMELEN]; u32 ktype; u32 dtype; + u32 objtype; u32 size; atomic_t nelems; u32 ndeact; @@ -416,6 +418,7 @@ void nf_tables_unbind_set(const struct nft_ctx *ctx, struct nft_set *set, * @NFT_SET_EXT_EXPIRATION: element expiration time * @NFT_SET_EXT_USERDATA: user data associated with the element * @NFT_SET_EXT_EXPR: expression assiociated with the element + * @NFT_SET_EXT_OBJREF: stateful object reference associated with element * @NFT_SET_EXT_NUM: number of extension types */ enum nft_set_extensions { @@ -426,6 +429,7 @@ enum nft_set_extensions { NFT_SET_EXT_EXPIRATION, NFT_SET_EXT_USERDATA, NFT_SET_EXT_EXPR, + NFT_SET_EXT_OBJREF, NFT_SET_EXT_NUM }; @@ -554,6 +558,11 @@ static inline struct nft_set_ext *nft_set_elem_ext(const struct nft_set *set, return elem + set->ops->elemsize; } +static inline struct nft_object **nft_set_ext_obj(const struct nft_set_ext *ext) +{ + return nft_set_ext(ext, NFT_SET_EXT_OBJREF); +} + void *nft_set_elem_init(const struct nft_set *set, const struct nft_set_ext_tmpl *tmpl, const u32 *key, const u32 *data, |