npf_state_tcp_params_t
const npf_state_tcp_params_t *params;
const npf_state_tcp_params_t *params;
npf_state_tcp_params_t *params = npf_param_allocgroup(npf,
NPF_PARAMS_TCP_STATE, sizeof(npf_state_tcp_params_t));
const size_t len = sizeof(npf_state_tcp_params_t);