netfilter: nfnetlink_queue: allow to attach expectations to conntracks

This patch adds the capability to attach expectations via nfnetlink_queue.
This is required by conntrack helpers that trigger expectations based on
the first packet seen like the TFTP and the DHCPv6 user-space helpers.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/uapi/linux/netfilter/nfnetlink_queue.h b/include/uapi/linux/netfilter/nfnetlink_queue.h
index 3a9b92147339..0132bad79de7 100644
--- a/include/uapi/linux/netfilter/nfnetlink_queue.h
+++ b/include/uapi/linux/netfilter/nfnetlink_queue.h
@@ -46,6 +46,7 @@ enum nfqnl_attr_type {
         NFQA_CT_INFO,                   /* enum ip_conntrack_info */
         NFQA_CAP_LEN,                   /* __u32 length of captured packet */
         NFQA_SKB_INFO,                  /* __u32 skb meta information */
+        NFQA_EXP,                       /* nf_conntrack_netlink.h */
 
         __NFQA_MAX
 };