PF_RT_SOURCE_LIMIT
snl_add_msg_attr_u8(nw, PF_RT_SOURCE_LIMIT, r->sourcelim.id);
{ .type = PF_RT_SOURCE_LIMIT, .off = _OUT(r.sourcelim.id), .cb = snl_attr_get_uint8 },
nlattr_add_u8(nw, PF_RT_SOURCE_LIMIT, rule->sourcelim.id);
{ .type = PF_RT_SOURCE_LIMIT, .off = _OUT(sourcelim.id), .cb = nlattr_get_uint8 },