From: Florian Westphal <fw@xxxxxxxxx>
This will allow a followup patch to treat the 'ops->priv' pointer
as nft_chain argument without having to first walk the table/chains
to check if there is a matching base chain pointer.
Signed-off-by: Florian Westphal <fw@xxxxxxxxx>
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
---
include/linux/netfilter.h | 8 +++++++-
net/netfilter/nf_tables_api.c | 4 +++-
2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
index f161569fbe2f..3fda1a508733 100644
--- a/include/linux/netfilter.h
+++ b/include/linux/netfilter.h
@@ -77,12 +77,18 @@ struct nf_hook_state {
typedef unsigned int nf_hookfn(void *priv,
struct sk_buff *skb,
const struct nf_hook_state *state);
+enum nf_hook_ops_type {
+ NF_HOOK_OP_UNDEFINED,
+ NF_HOOK_OP_NF_TABLES,
+};
+
struct nf_hook_ops {
/* User fills in from here down. */
nf_hookfn *hook;
struct net_device *dev;
void *priv;
- u_int8_t pf;
+ u8 pf;
+ enum nf_hook_ops_type hook_ops_type:8;
unsigned int hooknum;
/* Hooks are ordered in ascending priority. */
int priority;
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 6c2000a11c7e..c9308241b688 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -2168,8 +2168,10 @@ static int nf_tables_addchain(struct nft_ctx *ctx, u8 family, u8 genmask,
}
nft_trans_chain_policy(trans) = NFT_CHAIN_POLICY_UNSET;
- if (nft_is_base_chain(chain))
+ if (nft_is_base_chain(chain)) {
+ basechain->ops.hook_ops_type = NF_HOOK_OP_NF_TABLES;
nft_trans_chain_policy(trans) = policy;
+ }
err = nft_chain_add(table, chain);
if (err < 0) {
--
2.30.2
