#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#define?src_addr?“10.10.3.1“???//需要進行arp解析的ip
#define?device??“eno1“????????????????//本機的哪塊網(wǎng)卡
#define?fill_buf?“windakaSear“
int?socket_id;
char?*target?=?src_addr;
int?send_count?=?0;
int?recv_count?=?0;
struct?in_addr??src?dst;
struct?sockaddr_ll???me?he;
struct?timeval???send_time?recv_time;
struct?in_addr?get_src_ip（char?*?devices）//獲得本機相應(yīng)網(wǎng)卡的ip
{
????struct?sockaddr_in?saddr;
????int?sock_id?=?socket（AF_INET?SOCK_DGRAM?0）;//設(shè)置數(shù)據(jù)報socket
????if?（sock_id?????????perror（“socket“）;
????????exit（2）;
????}
????if?（devices）?{
????????if?（setsockopt（sock_id?SOL_SOCKET?SO_BINDTODEVICE?device?strlen（device）?+?1）?==?-1）//將socketbind到網(wǎng)卡上
????????????perror（“WARNING:?interface?is?ignored“）;
????}
????int?alen?=?sizeof（saddr）;
????memset（&saddr?0?sizeof（saddr））;
????saddr.sin_port?=?htons（0x1000）;//設(shè)置端口
????saddr.sin_family?=?AF_INET;
????if?（connect（sock_id?（struct?sockaddr*）&saddr?sizeof（saddr））?==?-1）?{//將socket連接到相應(yīng)的inet地址上
????????perror（“connect“）;
????????exit（2）;
????}
????if?（getsockname（sock_id?（struct?sockaddr*）&saddr?&alen）?==?-1）?{//通過socket獲得綁定的ip地址
????????perror（“getsockname“）;
????????exit（2）;
????}
????close（sock_id）;
????return?saddr.sin_addr;
}
int?check_device（char*?if_dev?int?ss）//網(wǎng)卡和socket????將網(wǎng)卡設(shè)置為混雜模式？
{
????int?ifindex;
????struct?ifreq?ifr;
????memset（&ifr?0?sizeof（ifr））;
????strncpy（ifr.ifr_name?if_dev?IFNAMSIZ?-?1）;//網(wǎng)卡設(shè)備名
????if?（ioctl（ss?SIOCGIFINDEX?&ifr）?????????fprintf（stderr?“arping:?unknown?iface?%s\n“?if_dev）;
????????exit（2）;
????}
????ifindex?=?ifr.ifr_ifindex;
????if?（ioctl（ss?SIOCGIFFLAGS?（char*）&ifr））?{
????????perror（“ioctl（SIOCGIFFLAGS）“）;
????????exit（2）;
????}
????if?（!（ifr.ifr_flags&IFF_UP））?{
????????printf（“Interface?\“%s\“?is?down\n“?if_dev）;
????????exit（2）;
????}
????if?（ifr.ifr_flags&（IFF_NOARP?|?IFF_LOOPBACK））?{
????????printf（“Interface?\“%s\“?is?not?ARPable\n“?if_dev）;
????????exit（2）;
????}
????return?ifindex;
}?//?check_device（）
?
int?socket_init（）
{
????int?s?s_errno;
????s?=?socket（PF_PACKET?SOCK_DGRAM?0）;//數(shù)據(jù)包
????s_errno?=?errno;
????me.sll_family?=?AF_PACKET;
????me.sll_ifindex?=?check_device（device?s）;
????me.sll_protocol?=?htons（ETH_P_ARP）;
????if?（bind（s?（struct?sockaddr*）&me?sizeof（me））?==?-1）?{
???????perror（“bind“）;
???????exit（2）;
????}
????int?alen?=?sizeof（me）;
????if?（getsockname（s?（struct?sockaddr*）&me?&alen）?==?-1）?{
????????perror（“getsockname“）;
????????exit（2）;
????}
????if?（me.sll_halen?==?0）?{
????????printf（“Interface?\“%s\“?is