同理,你可能看见过别人这样写:socket(AF_INET, SOCK_RAW, IPPROTO_TCP); 实际上在FreeBSD 下用pffindproto 找,SOCK_RAW 与 IPPROTO_TCP 也是不匹配的,返回wildcard_RAW entry 。 再者,在FreeBSD 上这样调用 socket(AF_INET, SOCK_RAW, 0/* IPPRORO_IP*/); 是可以的,使用pffindtype() 函数查找,返回...
// Submit request for a socket descriptor to look up interface. if ((sd = socket (PF_PACKET, SOCK_RAW, htons (ETH_P_ALL))) < 0) {//第一次创建socket是为了获取本地网卡信息 perror ("socket() failed to get socket descriptor for using ioctl() "); exit (EXIT_FAILURE); } // Use ...
Sock_packet是一种过时的套接字类型,主要用于直接从设备驱动程序接收原始数据包。它通常用于网络监控和调试,但已被更现代的套接字类型所取代。使用Sock_packet需要管理员权限,因为它直接与底层网络协议交互。 相比之下,原始套接字(Raw Sockets)是更高级的网络编程接口,允许应用程序直接处理IP数据包。原始套接字可用于...
除非遇到特别声明的协议,一般你可以用ETH_P_IP来处理IP的一组协议(TCP,UDP,ICMP,raw IP等等)因为它们容易受到一些很严重的安全问题的牵连(比如你可以伪造一个MAC地址),所以只有具有root权限才可以使用PF_PACKET-familysocket.这也就是为什么只有具有root权限后才能运行嗅探器的原因!
另外还了解到原始套接字在socket的创建上有不同的组合,例如: AF_INET+SOCK_RAW最多只能允许用户层与IP层直接通信,而AF_PACKET+SOCK_RAW就可以允许用户层与数据链路层直接通信了(这一点也是Linux_Unix系统编程手册说得不准确的地方) 另外,关于AF_PACKET+SOCK_RAW可以参考man packet: ...
2012-09-22 16:40 −sock_raw(注意一定要在root下使用)原始套接字编程可以接收到本机网卡上的数据帧或者数据包,对于监听网络的流量和分析是很有作用的.一共可以有3种方式创建这种socket 1.socket(AF_INET, SOCK_RAW, IPPROTO_TCP|IPPROTO_UDP|IPPR... ...
this may go and run an internal DHCP client, but anyway ... 3. Open a socket like this. (The RxChannel is the channel opened to the AP (Have not tried 5GHz channels yet!!) sdEtherCon = sl_Socket(SL_AF_PACKET, SL_SOCK_RAW, RxChannel); //e2e.ti.com/.../2010994 ...
Previously, despite what the commit said, we were using a raw IP socket that was not an AF_PACKET socket, and thus was subject to the host firewall rules. Switch to using a real AF_PACKET socket to actually get the functionality we want. Updates #13140 Change-Id: If657daeeda9ab8d967...
1 ss = socket() #创建一个服务器的套接字 2 ss.bind() #绑定服务器套接字 3 inf_loop...
Previously, despite what the commit said, we were using a raw IP socket that was *not* an AF_PACKET socket, and thus was subject to the host firewall rules. Switch to using a real AF_PACKET socket to actually get the functionality we want. Updates #13140 Signed-off-by: Andrew Dunham...