pudn下载的一些资料 可以共享

#include "arpPkt.h" #include <iostream.h> #include <./pcap.h> pcap_if_t* alldevs; pcap_if_t* d; int i=0,num; //第几个网络适配器 pcap_t *adhandle; //指向分配的空间 char errbuf[PCAP_ERRBUF_SIZE];//错误信息 arp_packet arpPacket;//// 定义ARPPACKET结构体变量 unsigned char tmp_dest_ip[4] = {0,0,0,0};//目的ip unsigned char tmp_sour_ip[4] = {0,0,0,0};//自身ip unsigned char tmp_sour_addr[6] = {0x00,0x00,0x00,0x00,0x00,0x00};//目的mac void setpkt();//初始化packet void sendPkt();//发送并接收arp packet void GetMACaddress(); void packet_handler(u_char *param, const struct pcap_pkthdr *header, const u_char *pkt_data);//接收到arp packet处理 void main () { if(pcap_findalldevs(&alldevs,errbuf) == -1)//获得网络设备指针 { cout<<"Error in pcap_findalldevs:"<<endl; return ; } // 显示网卡列表 for(d=alldevs;d;d=d->next) { ++i; cout<<i<<":name:"<<d->name<<endl; if (d->description) cout<<"description:"<<d->description<<endl; else cout<<"No description available)\n"; } if(i==0) { cout<<"\nNo interfaces found! Make sure WinPcap is installed.\n"; return ;//没有发现网卡信息 } cout<<"Enter the interface number:(1-"<<i<<")"; cin>>num; if(num < 1 || num > i) { cout<<"\nInterface number out of range.\n"; /* 释放内存 */ pcap_freealldevs(alldevs); return ; } /* 转到选择的网卡 */ for(d=alldevs, i=0; i< num-1 ;d=d->next, i++); /* 打开设备 */ if ( (adhandle= pcap_open_live(d->name, // name of the device 65536, // portion of the packet to capture // 65536 guarantees that the whole packet will be captured on all the link layers 1, // promiscuous mode 1000, // read timeout errbuf // error buffer ) ) == NULL) { cout<<"\nUnable to open the adapter. "<<d->name<<"is not supported by WinPcap\n"; /* Free the device list */ pcap_freealldevs(alldevs); return ; } if(d->addresses==NULL){ cout<<"Unable to open the adapter:"<<d->name<<endl; return; } for(i=0;i<4;i++){ tmp_sour_ip[i]=d->addresses->addr->sa_data[i+2]; tmp_dest_ip[i]=d->addresses->addr->sa_data[i+2]&d->addresses->netmask->sa_data[i+2]; } cout<<"this pc's ip and mac:\nip:"; for(i=0;i<4;i++){ cout<<dec<<(int)tmp_sour_ip[i]; if(i!=3) cout<<"."; } cout<<endl<<"the results:(ctrl+c to quit)\n"; GetMACaddress(); setpkt();//初始packet sendPkt();//发送arp请求，并监听arp响应 } void sendPkt(){ for(i=1;i<256;i++) { arpPacket.arp.dest_ip[3]=(unsigned char)i; if (pcap_sendpacket(adhandle, (unsigned char*)&arpPacket, sizeof(arpPacket) ) != 0)//发送arp 请求报 { cout<<"\nError sending the packet: \n"; return; } pcap_loop(adhandle, 1, packet_handler, NULL);//接受arp相应包并且做出处理 } cout<<"send ok!"<<endl; } void setpkt(){//设置初始arppkt的数据 memset(&arpPacket, 0, sizeof(arp_packet)); // 数据包初始化 //自动填充的字段 arpPacket.arp.add_len = (unsigned char)6;//mac长度 arpPacket.arp.pro_len = (unsigned char)4;//ip长度 arpPacket.eth.eh_type = htons((unsigned short)0x0806); // DLC Header的以太网类型 arpPacket.arp.hardware_type = htons((unsigned short)1);; // 硬件类型 arpPacket.arp.protocol_type = htons((unsigned short)0x0800); // 上层协议类型 arpPacket.arp.option = htons((unsigned short)0x1);//1为arp请求 for(int i=0;i<sizeof(arpPacket.eth.dest_mac);i++) arpPacket.eth.dest_mac[i]=0xff;//广播地址 //sour ip and mac memcpy(arpPacket.arp.sour_addr,tmp_sour_addr,sizeof(tmp_sour_addr)); memcpy(arpPacket.arp.sour_ip,tmp_sour_ip,sizeof(tmp_sour_ip)); memcpy(arpPacket.eth.source_mac,tmp_sour_addr,sizeof(tmp_sour_addr)); memcpy(arpPacket.arp.dest_ip,tmp_dest_ip,sizeof(tmp_dest_ip)); } /* Callback function invoked by libpcap for every incoming packet */ void packet_handler(u_char *param, const struct pcap_pkthdr *header, const u_char *pkt_data) { ethernet_head *PETHDR; arp_head *PARPHDR; //retireve the position of the ethernet header PETHDR=(ethernet_head *)pkt_data; if((PETHDR->eh_type)==0x0608) //arp data { //retireve the position of the arp header PARPHDR=(arp_head *)(pkt_data +14); if(PARPHDR->option==0x0200)//对应答进行操作 { cout<<"ip:\t"; for(int i=0;i<4;i++){ cout<<dec<<(int)PARPHDR->sour_ip[i]; if(i!=3) cout<<"."; } cout<<"\tmac:\t"; for(i=0;i<6;i++){ if((int)PARPHDR->sour_addr[i] < 16)//显示ip cout<<"0"; cout<<hex<<(int)PARPHDR->sour_addr[i];//显示mac if(i!=5) cout<<"-"; } cout<<endl; } } } void GetMACaddress(void) { unsigned char MACData[8]; // Allocate data structure for MAC (6 bytes needed) WKSTA_TRANSPORT_INFO_0 *pwkti; // Allocate data structure for Netbios DWORD dwEntriesRead; DWORD dwTotalEntries; BYTE *pbBuffer; // Get MAC address via NetBios's enumerate function NET_API_STATUS dwStatus = NetWkstaTransportEnum( NULL, // [in] server name 0, // [in] data structure to return &pbBuffer, // [out] pointer to buffer MAX_PREFERRED_LENGTH, // [in] maximum length &dwEntriesRead, // [out] counter of elements actually enumerated &dwTotalEntries, // [out] total number of elements that could be enumerated NULL); // [in/out] resume handle assert(dwStatus == NERR_Success); pwkti = (WKSTA_TRANSPORT_INFO_0 *)pbBuffer; // type cast the buffer for(DWORD i=1; i< dwEntriesRead; i++) // first address is 00000000, skip it { // enumerate MACs and print swscanf((wchar_t *)pwkti[i].wkti0_transport_address, L"%2hx%2hx%2hx%2hx%2hx%2hx", &MACData[0], &MACData[1], &MACData[2], &MACData[3], &MACData[4], &MACData[5]); printf("mac: %02X-%02X-%02X-%02X-%02X-%02X\n", MACData[0], MACData[1], MACData[2], MACData[3], MACData[4], MACData[5]); for(int i = 0;i < 6;i++) tmp_sour_addr[i]=(int)MACData[i]; } // Release pbBuffer allocated by above function dwStatus = NetApiBufferFree(pbBuffer); assert(dwStatus == NERR_Success); }