netfilter: conntrack: add support for DCCP handshake sequence to ctnetlink
This patch adds CTA_PROTOINFO_DCCP_HANDSHAKE_SEQ that exposes
the u64 handshake sequence number to user-space.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
diff --git a/include/net/netlink.h b/include/net/netlink.h
index eddb502..007bdb0 100644
--- a/include/net/netlink.h
+++ b/include/net/netlink.h
@@ -940,6 +940,15 @@
}
/**
+ * nla_get_be64 - return payload of __be64 attribute
+ * @nla: __be64 netlink attribute
+ */
+static inline __be64 nla_get_be64(const struct nlattr *nla)
+{
+ return *(__be64 *) nla_data(nla);
+}
+
+/**
* nla_get_flag - return payload of flag attribute
* @nla: flag netlink attribute
*/