PF_TA_FLAGS
snl_add_msg_attr_u32(&nw, PF_TA_FLAGS, flags);
snl_add_msg_attr_u32(&nw, PF_TA_FLAGS, flags);
snl_add_msg_attr_u32(&nw, PF_TA_FLAGS, flags);
snl_add_msg_attr_u32(&nw, PF_TA_FLAGS, flags);
snl_add_msg_attr_u32(&nw, PF_TA_FLAGS, flags);
snl_add_msg_attr_u32(&nw, PF_TA_FLAGS, flags);
{ .type = PF_TA_FLAGS, .off = _OUT(flags), .cb = nlattr_get_uint32 },