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authorStephane Bryant <stephane.ml.bryant@gmail.com>2016-03-26 08:42:10 +0100
committerPablo Neira Ayuso <pablo@netfilter.org>2016-03-29 13:24:37 +0200
commitac28634456867b23b95faccba7997a62ec430603 (patch)
tree9d10a71187dd478585a0f00effe6226d8e53e139 /net/bridge
parentccd63c20fe834a3f98f46f0447e5f106c4ffa2a4 (diff)
downloadlinux-ac28634456867b23b95faccba7997a62ec430603.tar.bz2
netfilter: bridge: add nf_afinfo to enable queuing to userspace
This just adds and registers a nf_afinfo for the ethernet bridge, which enables queuing to userspace for the AF_BRIDGE family. No checksum computation is done. Signed-off-by: Stephane Bryant <stephane.ml.bryant@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/bridge')
-rw-r--r--net/bridge/netfilter/nf_tables_bridge.c47
1 files changed, 45 insertions, 2 deletions
diff --git a/net/bridge/netfilter/nf_tables_bridge.c b/net/bridge/netfilter/nf_tables_bridge.c
index 7fcdd7261d88..a78c4e2826e5 100644
--- a/net/bridge/netfilter/nf_tables_bridge.c
+++ b/net/bridge/netfilter/nf_tables_bridge.c
@@ -162,15 +162,57 @@ static const struct nf_chain_type filter_bridge = {
(1 << NF_BR_POST_ROUTING),
};
+static void nf_br_saveroute(const struct sk_buff *skb,
+ struct nf_queue_entry *entry)
+{
+}
+
+static int nf_br_reroute(struct net *net, struct sk_buff *skb,
+ const struct nf_queue_entry *entry)
+{
+ return 0;
+}
+
+static __sum16 nf_br_checksum(struct sk_buff *skb, unsigned int hook,
+ unsigned int dataoff, u_int8_t protocol)
+{
+ return 0;
+}
+
+static __sum16 nf_br_checksum_partial(struct sk_buff *skb, unsigned int hook,
+ unsigned int dataoff, unsigned int len,
+ u_int8_t protocol)
+{
+ return 0;
+}
+
+static int nf_br_route(struct net *net, struct dst_entry **dst,
+ struct flowi *fl, bool strict __always_unused)
+{
+ return 0;
+}
+
+static const struct nf_afinfo nf_br_afinfo = {
+ .family = AF_BRIDGE,
+ .checksum = nf_br_checksum,
+ .checksum_partial = nf_br_checksum_partial,
+ .route = nf_br_route,
+ .saveroute = nf_br_saveroute,
+ .reroute = nf_br_reroute,
+ .route_key_size = 0,
+};
+
static int __init nf_tables_bridge_init(void)
{
int ret;
+ nf_register_afinfo(&nf_br_afinfo);
nft_register_chain_type(&filter_bridge);
ret = register_pernet_subsys(&nf_tables_bridge_net_ops);
- if (ret < 0)
+ if (ret < 0) {
nft_unregister_chain_type(&filter_bridge);
-
+ nf_unregister_afinfo(&nf_br_afinfo);
+ }
return ret;
}
@@ -178,6 +220,7 @@ static void __exit nf_tables_bridge_exit(void)
{
unregister_pernet_subsys(&nf_tables_bridge_net_ops);
nft_unregister_chain_type(&filter_bridge);
+ nf_unregister_afinfo(&nf_br_afinfo);
}
module_init(nf_tables_bridge_init);