NFNLGRP_CONNTRACK_DESTROY 695 net/netfilter/nf_conntrack_netlink.c group = NFNLGRP_CONNTRACK_DESTROY; NFNLGRP_CONNTRACK_DESTROY 51 net/netfilter/nfnetlink.c [NFNLGRP_CONNTRACK_DESTROY] = NFNL_SUBSYS_CTNETLINK,