_zcrypt_send_cprb
rc = _zcrypt_send_cprb(xflags, &ap_perms, &tr, xcrb);
rc = _zcrypt_send_cprb(xflags, perms, &tr, &xcrb);
rc = _zcrypt_send_cprb(xflags, perms, &tr, &xcrb);
rc = _zcrypt_send_cprb(xflags, &ap_perms, &tr, xcrb);