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authorFlorian Westphal <fw@strlen.de>2018-05-14 23:46:55 +0200
committerPablo Neira Ayuso <pablo@netfilter.org>2018-05-23 09:14:05 +0200
commit4e25ceb80b585891c5e2a6edfa481bc4709e9544 (patch)
treee847447499c4e4c91b418c011aa5bfd0515ac576 /net/ipv6/netfilter
parentba7d284a984d97d5dbc44ddbfd2216b58107a5ba (diff)
downloadlinux-4e25ceb80b585891c5e2a6edfa481bc4709e9544.tar.bz2
netfilter: nf_tables: allow chain type to override hook register
Will be used in followup patch when nat types no longer use nf_register_net_hook() but will instead register with the nat core. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/ipv6/netfilter')
-rw-r--r--net/ipv6/netfilter/nft_chain_nat_ipv6.c20
1 files changed, 14 insertions, 6 deletions
diff --git a/net/ipv6/netfilter/nft_chain_nat_ipv6.c b/net/ipv6/netfilter/nft_chain_nat_ipv6.c
index 100a6bd1046a..05bcb2c23125 100644
--- a/net/ipv6/netfilter/nft_chain_nat_ipv6.c
+++ b/net/ipv6/netfilter/nft_chain_nat_ipv6.c
@@ -64,14 +64,22 @@ static unsigned int nft_nat_ipv6_local_fn(void *priv,
return nf_nat_ipv6_local_fn(priv, skb, state, nft_nat_do_chain);
}
-static int nft_nat_ipv6_init(struct nft_ctx *ctx)
+static int nft_nat_ipv6_reg(struct net *net, const struct nf_hook_ops *ops)
{
- return nf_ct_netns_get(ctx->net, ctx->family);
+ int ret = nf_register_net_hook(net, ops);
+ if (ret == 0) {
+ ret = nf_ct_netns_get(net, NFPROTO_IPV6);
+ if (ret)
+ nf_unregister_net_hook(net, ops);
+ }
+
+ return ret;
}
-static void nft_nat_ipv6_free(struct nft_ctx *ctx)
+static void nft_nat_ipv6_unreg(struct net *net, const struct nf_hook_ops *ops)
{
- nf_ct_netns_put(ctx->net, ctx->family);
+ nf_unregister_net_hook(net, ops);
+ nf_ct_netns_put(net, NFPROTO_IPV6);
}
static const struct nft_chain_type nft_chain_nat_ipv6 = {
@@ -89,8 +97,8 @@ static const struct nft_chain_type nft_chain_nat_ipv6 = {
[NF_INET_LOCAL_OUT] = nft_nat_ipv6_local_fn,
[NF_INET_LOCAL_IN] = nft_nat_ipv6_fn,
},
- .init = nft_nat_ipv6_init,
- .free = nft_nat_ipv6_free,
+ .ops_register = nft_nat_ipv6_reg,
+ .ops_unregister = nft_nat_ipv6_unreg,
};
static int __init nft_chain_nat_ipv6_init(void)