From c539f01717c239cfa0921dd43927afc976f1eedc Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Fri, 11 Jan 2013 06:30:44 +0000 Subject: netfilter: add connlabel conntrack extension similar to connmarks, except labels are bit-based; i.e. all labels may be attached to a flow at the same time. Up to 128 labels are supported. Supporting more labels is possible, but requires increasing the ct offset delta from u8 to u16 type due to increased extension sizes. Mapping of bit-identifier to label name is done in userspace. The extension is enabled at run-time once "-m connlabel" netfilter rules are added. Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso --- include/net/netns/conntrack.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/net/netns/conntrack.h') diff --git a/include/net/netns/conntrack.h b/include/net/netns/conntrack.h index 923cb20051ed..c9c0c538b68b 100644 --- a/include/net/netns/conntrack.h +++ b/include/net/netns/conntrack.h @@ -84,6 +84,10 @@ struct netns_ct { int sysctl_auto_assign_helper; bool auto_assign_helper_warned; struct nf_ip_net nf_ct_proto; +#if defined(CONFIG_NF_CONNTRACK_LABELS) + unsigned int labels_used; + u8 label_words; +#endif #ifdef CONFIG_NF_NAT_NEEDED struct hlist_head *nat_bysource; unsigned int nat_htable_size; -- cgit v1.2.3