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| author | Florian Westphal <fw@strlen.de> | 2018-12-18 17:15:17 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-12-19 11:21:37 -0800 |
| commit | de8bda1d22d38b7d5cd08b33f86efd94d4c86630 (patch) | |
| tree | 7acdf2397b31eb8b1601c9183ef30b8ebbe8400a /net/bridge | |
| parent | df5042f4c5b9326c593bf2e31ed859ebc3b4130a (diff) | |
| download | linux-de8bda1d22d38b7d5cd08b33f86efd94d4c86630.tar.gz linux-de8bda1d22d38b7d5cd08b33f86efd94d4c86630.tar.bz2 linux-de8bda1d22d38b7d5cd08b33f86efd94d4c86630.zip | |
net: convert bridge_nf to use skb extension infrastructure
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have been replaced by the skb_ext hooks that do the same as the bridge nf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>
Diffstat (limited to 'net/bridge')
| -rw-r--r-- | net/bridge/br_netfilter_hooks.c | 20 | ||||
| -rw-r--r-- | net/bridge/br_netfilter_ipv6.c | 4 |
2 files changed, 4 insertions, 20 deletions
diff --git a/net/bridge/br_netfilter_hooks.c b/net/bridge/br_netfilter_hooks.c index c58cf68b45c5..d21a23698410 100644 --- a/net/bridge/br_netfilter_hooks.c +++ b/net/bridge/br_netfilter_hooks.c @@ -132,10 +132,7 @@ static DEFINE_PER_CPU(struct brnf_frag_data, brnf_frag_data_storage); static void nf_bridge_info_free(struct sk_buff *skb) { - if (skb->nf_bridge) { - nf_bridge_put(skb->nf_bridge); - skb->nf_bridge = NULL; - } + skb_ext_del(skb, SKB_EXT_BRIDGE_NF); } static inline struct net_device *bridge_parent(const struct net_device *dev) @@ -148,19 +145,7 @@ static inline struct net_device *bridge_parent(const struct net_device *dev) static inline struct nf_bridge_info *nf_bridge_unshare(struct sk_buff *skb) { - struct nf_bridge_info *nf_bridge = skb->nf_bridge; - - if (refcount_read(&nf_bridge->use) > 1) { - struct nf_bridge_info *tmp = nf_bridge_alloc(skb); - - if (tmp) { - memcpy(tmp, nf_bridge, sizeof(struct nf_bridge_info)); - refcount_set(&tmp->use, 1); - } - nf_bridge_put(nf_bridge); - nf_bridge = tmp; - } - return nf_bridge; + return skb_ext_add(skb, SKB_EXT_BRIDGE_NF); } unsigned int nf_bridge_encap_header_len(const struct sk_buff *skb) @@ -508,7 +493,6 @@ static unsigned int br_nf_pre_routing(void *priv, if (br_validate_ipv4(state->net, skb)) return NF_DROP; - nf_bridge_put(skb->nf_bridge); if (!nf_bridge_alloc(skb)) return NF_DROP; if (!setup_pre_routing(skb)) diff --git a/net/bridge/br_netfilter_ipv6.c b/net/bridge/br_netfilter_ipv6.c index 96c072e71ea2..94039f588f1d 100644 --- a/net/bridge/br_netfilter_ipv6.c +++ b/net/bridge/br_netfilter_ipv6.c @@ -224,8 +224,8 @@ unsigned int br_nf_pre_routing_ipv6(void *priv, if (br_validate_ipv6(state->net, skb)) return NF_DROP; - nf_bridge_put(skb->nf_bridge); - if (!nf_bridge_alloc(skb)) + nf_bridge = nf_bridge_alloc(skb); + if (!nf_bridge) return NF_DROP; if (!setup_pre_routing(skb)) return NF_DROP; |