Data Structures

Here are the data structures with brief descriptions:
nfct_attr_grp_ctrs
nfct_attr_grp_icmp
nfct_attr_grp_ipv4
nfct_attr_grp_ipv6
nfct_attr_grp_port
nfct_filter_ipv4
nfct_filter_ipv6
nfct_filter_proto