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我使用下面的代碼片段,Linux的原始以太網插口接收更多的字節數比MTU
/* Open PF_PACKET socket, listening for EtherType ETHER_TYPE */
if ((sockfd = socket(PF_PACKET, SOCK_RAW, htons(ETHER_TYPE))) == -1) {
perror("listener: socket");
return -1;
}
/* Set interface to promiscuous mode - do we need to do this every time? */
strncpy(ifopts.ifr_name, ifName, IFNAMSIZ-1);
ioctl(sockfd, SIOCGIFFLAGS, &ifopts);
ifopts.ifr_flags |= IFF_PROMISC;
ioctl(sockfd, SIOCSIFFLAGS, &ifopts);
/* Allow the socket to be reused - incase connection is closed prematurely */
if (setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &sockopt, sizeof sockopt) == -1) {
perror("setsockopt");
close(sockfd);
return ERR_GENERIC;
}
/* Bind to device */
if (setsockopt(sockfd, SOL_SOCKET, SO_BINDTODEVICE, ifName, IFNAMSIZ-1) == -1) {
perror("SO_BINDTODEVICE");
close(sockfd);
return ERR_GENERIC;
}
/* Open RAW socket to send on */
if ((sendfd = socket(AF_PACKET, SOCK_RAW, IPPROTO_IP)) == -1) {
//if ((sendfd = socket(PF_PACKET, SOCK_RAW, htons (ETHER_TYPE))) == -1) {
perror("socket");
}
我收到了超過1500 MTU大小更多請分享您的輸入,用於獲取數據包超過MTU大小。
你說過你的問題。無需在評論中重申它。不要碰撞,如果這是你的意圖,並且無論如何它不會在這裏工作。 – EJP