mac_prison_label_alloc
struct label *mac_prison_label_alloc(int flags);
prlabel = mac_prison_label_alloc(flag);
intlabel = mac_prison_label_alloc(M_NOWAIT);
intlabel = mac_prison_label_alloc(M_WAITOK);
intlabel = mac_prison_label_alloc(M_WAITOK);
intlabel = mac_prison_label_alloc(M_WAITOK);