我的意思是根据我的结构体，改上面那段函数，使其同时支持ipv4和ipv6-DPDK中文网

好的，这里是修改后的函数：

int add_route(vrrp_route_t *route) {
    int fd = -1;
    struct rtentry entry = {0};

    if (route->version == 1) { // IPv4 路由表项
        vrrp_route_ipv4_t *ipv4_info = &route->ipv4_info;

        // 将字符串类型的地址转换为网络字节序下的二进制形式
        inet_pton(AF_INET, ipv4_info->destination, &entry.rt_dst);
        inet_pton(AF_INET, ipv4_info->gateway, &entry.rt_gateway);
        inet_pton(AF_INET, ipv4_info->genmask, &entry.rt_genmask);

        entry.rt_flags = atoi(ipv4_info->flags);
        entry.rt_metric = ipv4_info->metric;
        entry.rt_dev = ipv4_info->iface;
        entry.rt_priority = ipv4_info->table_id;

        fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); // 打开一个 UDP 套接字用于操作路由表
    } else if (route->version == 2) { // IPv6 路由表项
        vrrp_route_ipv6_t *ipv6_info = &route->ipv6_info;

        memcpy(&entry.rt_dst, &(ipv6_info->destination), sizeof(struct in6_addr));
        memcpy(&entry.rt_gateway, &(ipv6_info->gateway), sizeof(struct in6_addr));

        entry.rt_flags = atoi(ipv6_info->flags);
        entry.rt_metric = ipv6_info->metric;
		entry.rt_dev = ipv6_info->iface;
		entry.rt_priority=ipv6_info ->table_id; 
		entry.rt_prefixlen=ipv6_info ->prefixlen;

        fd = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP);
    }

    if (fd < 0) {
        perror("socket");
        return -1;
    }

    int ret = ioctl(fd, SIOCADDRT, &entry); // 添加路由表项

    close(fd);

    if (ret < 0) {
        perror("ioctl");
        return -1;
    }

    return 0;
}

修改说明：