From 0b2d8a7b638b5034d2d68f6add8af94daaa1d4cd Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Sat, 11 Apr 2015 10:46:38 +0100 Subject: 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 Signed-off-by: Pablo Neira Ayuso --- include/net/netfilter/nf_tables.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include') 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 #include #include #include @@ -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 * -- cgit v1.2.3