From 694a0055f039bc1d73aba10606ea74e798d2d759 Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Sat, 15 Apr 2017 19:26:10 +0200 Subject: netfilter: nft_ct: allow to set ctnetlink event types of a connection By default the kernel emits all ctnetlink events for a connection. This allows to select the types of events to generate. This can be used to e.g. only send DESTROY events but no NEW/UPDATE ones and will work even if sysctl net.netfilter.nf_conntrack_events is set to 0. This was already possible via iptables' CT target, but the nft version has the advantage that it can also be used with already-established conntracks. The added nf_ct_is_template() check isn't a bug fix as we only support mark and labels (and unlike ecache the conntrack core doesn't copy those). Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso --- include/uapi/linux/netfilter/nf_tables.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h index 8f3842690d17..683f6f88fcac 100644 --- a/include/uapi/linux/netfilter/nf_tables.h +++ b/include/uapi/linux/netfilter/nf_tables.h @@ -901,6 +901,7 @@ enum nft_rt_attributes { * @NFT_CT_BYTES: conntrack bytes * @NFT_CT_AVGPKT: conntrack average bytes per packet * @NFT_CT_ZONE: conntrack zone + * @NFT_CT_EVENTMASK: ctnetlink events to be generated for this conntrack */ enum nft_ct_keys { NFT_CT_STATE, @@ -921,6 +922,7 @@ enum nft_ct_keys { NFT_CT_BYTES, NFT_CT_AVGPKT, NFT_CT_ZONE, + NFT_CT_EVENTMASK, }; /** -- cgit v1.2.3-59-g8ed1b