/*接收的数据包含了netlink消息首部和自定义数据结构*/
struct u_packet_info
{
struct nlmsghdr hdr;
struct packet_info icmp_info;
};
struct u_packet_info info;
while(1)
{
kpeerlen = sizeof(struct sockaddr_nl);
/*接收内核空间返回的数据*/
rcvlen = recvfrom(skfd, &info, sizeof(struct u_packet_info),
0, (struct sockaddr*)&kpeer, &kpeerlen);
/*处理接收到的数据*/
……
} |