nf_ct_helper_expectfn_register
void nf_ct_helper_expectfn_register(struct nf_ct_helper_expectfn *n);
nf_ct_helper_expectfn_register(&q931_nat);
nf_ct_helper_expectfn_register(&callforwarding_nat);
EXPORT_SYMBOL_GPL(nf_ct_helper_expectfn_register);
nf_ct_helper_expectfn_register(&follow_master_nat);
nf_ct_helper_expectfn_register(&sip_nat);