nf_ct_zone 16 include/net/netfilter/nf_conntrack_zones.h struct nf_conntrack_zone *nf_ct_zone; nf_ct_zone 17 include/net/netfilter/nf_conntrack_zones.h nf_ct_zone = nf_ct_ext_find(ct, NF_CT_EXT_ZONE); nf_ct_zone 18 include/net/netfilter/nf_conntrack_zones.h if (nf_ct_zone) nf_ct_zone 19 include/net/netfilter/nf_conntrack_zones.h return nf_ct_zone->id;