nf_ct_ext_exist 33 include/net/netfilter/nf_conntrack_extend.h if (!nf_ct_ext_exist(ct, id)) nf_ct_ext_exist 28 net/netfilter/nf_conntrack_extend.c if (!nf_ct_ext_exist(ct, i)) nf_ct_ext_exist 87 net/netfilter/nf_conntrack_extend.c if (nf_ct_ext_exist(ct, id)) nf_ct_ext_exist 104 net/netfilter/nf_conntrack_extend.c if (!nf_ct_ext_exist(ct, i))