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net: convert bridge_nf to use skb extension infrastructure

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This converts the bridge netfilter (calling iptables hooks from bridge)
facility to use the extension infrastructure.

The bridge_nf specific hooks in skb clone and free paths are removed, they
have been replaced by the skb_ext hooks that do the same as the bridge nf
allocations hooks did.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Westphal
2018-12-18 17:15:17 +01:00
committed by David S. Miller
parent df5042f4c5
commit de8bda1d22
7 changed files with 13 additions and 55 deletions
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8
include/net/netfilter/br_netfilter.h
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@@ -6,12 +6,12 @@
static inline struct nf_bridge_info *nf_bridge_alloc(struct sk_buff *skb)
{
skb->nf_bridge = kzalloc(sizeof(struct nf_bridge_info), GFP_ATOMIC);
struct nf_bridge_info *b = skb_ext_add(skb, SKB_EXT_BRIDGE_NF);
if (likely(skb->nf_bridge))
refcount_set(&(skb->nf_bridge->use), 1);
if (b)
memset(b, 0, sizeof(*b));
return skb->nf_bridge;
return b;
}
void nf_bridge_update_protocol(struct sk_buff *skb);