NL_RTA_PRIORITY
snl_add_msg_attr_u32(&nw, NL_RTA_PRIORITY, rt_metrics->rmx_metric);
{ .type = NL_RTA_PRIORITY, .off = _OUT(rta_metric), .cb = snl_attr_get_uint32 },
{ .type = NL_RTA_PRIORITY, .off = _OUT(rta_metric), .cb = snl_attr_get_uint32 },
#define RTA_PRIORITY NL_RTA_PRIORITY
nlattr_add_u32(nw, NL_RTA_PRIORITY, nhop_get_metric(wn[i].nh));
nlattr_add_u32(nw, NL_RTA_PRIORITY, nhop_metric);
nlattr_add_u32(nw, NL_RTA_PRIORITY, nhop_get_metric(nh));
{ .type = NL_RTA_PRIORITY, .off = _OUT(rta_metric), .cb = nlattr_get_uint32 },