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netfilter: helpers: remove data_len usage for inkernel helpers

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No need to track this for inkernel helpers anymore as
NF_CT_HELPER_BUILD_BUG_ON checks do this now.

All inkernel helpers know what kind of structure they
stored in helper->data.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Florian Westphal
2017-04-16 01:29:17 +02:00
committed by Pablo Neira Ayuso
parent 157ffffeb5
commit 9f0f3ebeda
9 changed files with 19 additions and 33 deletions
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11
include/net/netfilter/nf_conntrack_helper.h
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@@ -29,9 +29,6 @@ struct nf_conntrack_helper {
struct module *me; /* pointer to self */
const struct nf_conntrack_expect_policy *expect_policy;
/* length of internal data, ie. sizeof(struct nf_ct_*_master) */
size_t data_len;
/* Tuple of things we will help (compared against server response) */
struct nf_conntrack_tuple tuple;
@@ -49,7 +46,11 @@ struct nf_conntrack_helper {
unsigned int expect_class_max;
unsigned int flags;
unsigned int queue_num; /* For user-space helpers. */
/* For user-space helpers: */
unsigned int queue_num;
/* length of userspace private data stored in nf_conn_help->data */
u16 data_len;
};
/* Must be kept in sync with the classes defined by helpers */
@@ -82,7 +83,7 @@ void nf_ct_helper_init(struct nf_conntrack_helper *helper,
u16 l3num, u16 protonum, const char *name,
u16 default_port, u16 spec_port, u32 id,
const struct nf_conntrack_expect_policy *exp_pol,
u32 expect_class_max, u32 data_len,
u32 expect_class_max,
int (*help)(struct sk_buff *skb, unsigned int protoff,
struct nf_conn *ct,
enum ip_conntrack_info ctinfo),