ZBROP
ZBROP(zone)->b_init_brand_data(zone);
ZBROP(zone)->b_free_brand_data(zone);
error = ZBROP(zone)->b_getattr(zone, attr, buf, &size);
err = ZBROP(zone)->b_setattr(zone, attr, buf, bufsize);
if ((err = ZBROP(p->p_zone)->b_brandsys(cmd, &rval, arg1, arg2, arg3,