MAC_PLUGIN_IDENT_IB
macp->m_type_ident = MAC_PLUGIN_IDENT_IB;
macp->m_type_ident = MAC_PLUGIN_IDENT_IB;
mtrp->mtr_ident = MAC_PLUGIN_IDENT_IB;
(void) mactype_unregister(MAC_PLUGIN_IDENT_IB);
if ((err = mactype_unregister(MAC_PLUGIN_IDENT_IB)) != 0)