CBF_USER
CBF_USER | CBF_PRIV | CBF_HV, EVCH_SUB_KEEP },
CBF_USER | CBF_PRIV | CBF_LV, EVCH_SUB_KEEP },
user = (cbarg & CBF_USER) != 0;
cip->ci_cbarg & CBF_USER ? 'u' : 'k',
#define CBF_ALL (CBF_USER | CBF_PRIV | CBF_LV | CBF_HV)