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netfilter: nf_tables: store and dump set policy 

We want to know in which cases the user explicitly sets the policy
options. In that case, we also want to dump back the info.

Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Arturo Borrero 2014-09-23 13:30:41 +02:00 committed by Pablo Neira Ayuso
parent 34666d467c
commit 9363dc4b59
2 changed files with 8 additions and 0 deletions
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2
include/net/netfilter/nf_tables.h
View File

@ -241,6 +241,7 @@ void nft_unregister_set(struct nft_set_ops *ops);
* @dtype: data type (verdict or numeric type defined by userspace)
* @size: maximum set size
* @nelems: number of elements
* @policy: set parameterization (see enum nft_set_policies)
* @ops: set ops
* @flags: set flags
* @klen: key length
@ -255,6 +256,7 @@ struct nft_set {
u32 dtype;
u32 size;
u32 nelems;
u16 policy;
/* runtime data below here */
const struct nft_set_ops *ops ____cacheline_aligned;
u16 flags;

6
net/netfilter/nf_tables_api.c
View File

@ -2344,6 +2344,11 @@ static int nf_tables_fill_set(struct sk_buff *skb, const struct nft_ctx *ctx,
goto nla_put_failure;
}
if (set->policy != NFT_SET_POL_PERFORMANCE) {
if (nla_put_be32(skb, NFTA_SET_POLICY, htonl(set->policy)))
goto nla_put_failure;
}
desc = nla_nest_start(skb, NFTA_SET_DESC);
if (desc == NULL)
goto nla_put_failure;
@ -2669,6 +2674,7 @@ static int nf_tables_newset(struct sock *nlsk, struct sk_buff *skb,
set->dlen = desc.dlen;
set->flags = flags;
set->size = desc.size;
set->policy = policy;
err = ops->init(set, &desc, nla);
if (err < 0)