diff options
| author |   Patrick McHardy <kaber@trash.net> | 2015-04-11 10:46:38 +0100 |
|---|---|---|
| committer |   Pablo Neira Ayuso <pablo@netfilter.org> | 2015-04-13 20:12:31 +0200 |
| commit | 0b2d8a7b638b5034d2d68f6add8af94daaa1d4cd (patch) | |
| tree | 0e10c271d522dd144f22e474af5f73a7c4214091 /include/net/netfilter | |
| parent | uapi: ebtables: don't include linux/if.h (diff) | |
| download | linux-dev-0b2d8a7b638b5034d2d68f6add8af94daaa1d4cd.tar.xz linux-dev-0b2d8a7b638b5034d2d68f6add8af94daaa1d4cd.zip | |
netfilter: nf_tables: add helper functions for expression handling
Add helper functions for initializing, cloning, dumping and destroying
a single expression that is not part of a rule.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/net/netfilter')
| -rw-r--r-- | include/net/netfilter/nf_tables.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h index cb42da1011ef..e21623cb7b20 100644 --- a/include/net/netfilter/nf_tables.h +++ b/include/net/netfilter/nf_tables.h @@ -1,6 +1,7 @@ #ifndef _NET_NF_TABLES_H #define _NET_NF_TABLES_H +#include <linux/module.h> #include <linux/list.h> #include <linux/netfilter.h> #include <linux/netfilter/nfnetlink.h> @@ -641,6 +642,18 @@ static inline void *nft_expr_priv(const struct nft_expr *expr) return (void *)expr->data; } +struct nft_expr *nft_expr_init(const struct nft_ctx *ctx, + const struct nlattr *nla); +void nft_expr_destroy(const struct nft_ctx *ctx, struct nft_expr *expr); +int nft_expr_dump(struct sk_buff *skb, unsigned int attr, + const struct nft_expr *expr); + +static inline void nft_expr_clone(struct nft_expr *dst, struct nft_expr *src) +{ + __module_get(src->ops->type->owner); + memcpy(dst, src, src->ops->size); +} + /** * struct nft_rule - nf_tables rule * |