监听发往本机和从本机发出的数据包
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站长推荐:NSetup一键部署软件
一键式完成美化安装包制作，自动增量升级，数据统计，数字签名。应对各种复杂场景，脚本模块化拆分，常规复杂的脚本代码，图形化设置。无需专业的研发经验，轻松完成项目部署。(www.nsetup.cn)
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//head.h #ifndef _TCP_HEAD_ #define _TCP_HEAD_ typedef struct _tcphdr { unsigned short tcp_sport; unsigned short tcp_dport; unsigned int tcp_seq; unsigned int tcp_ack; unsigned char tcp_lenres; unsigned char tcp_flag; unsigned short tcp_win; unsigned short tcp_sum; unsigned short tcp_urp; } TCP_HEADER,*pTCP_HEADER; #endif #ifndef _UDP_HEAD_ #define _UDP_HEAD_ typedef struct _udphdr { unsigned short uh_sport; unsigned short uh_dport; unsigned short uh_len; unsigned short uh_sum; }UDP_HEADER,*pUDP_HEADER; #endif #ifndef _IP_HEAD_ #define _IP_HEAD_ typedef struct _iphdr { unsigned char h_verlen; unsigned char tos; unsigned short total_len; unsigned short ident; unsigned short frag_and_flags; unsigned char ttl; unsigned char proto; unsigned short checksum; unsigned int sourceIP; unsigned int destIP; }IP_HEADER,*pIP_HEADER; #endif //stdafx.h #pragma once #include <SDKDDKVer.h> #include <stdio.h> #include <tchar.h> #include "head.h" #include <winsock2.h> #include <iostream> #include <memory.h> #include <time.h> #include <windows.h> #include <Ws2tcpip.h> #define SIO_RCVALL _WSAIOW(IOC_VENDOR,1) //socket.cpp // socket.cpp // #include "stdafx.h" #include <string> #pragma comment (lib,"Ws2_32") void Decodepkt(char* buff,int len); std::string CheckProto(int pro); void DecodeUDP(char* buff); void DecodeTCP(char* buff); using namespace std; int main(int argc, char* argv[]) { WSADATA wsaData; struct sockaddr_in SourceAddr; char recvbuff[65535]={'\0'}; SOCKET ListenSocket; bool flag=true; int err=WSAStartup(MAKEWORD(2,2),&wsaData); if(err!=0){ cout<<"failed in WSAStartup()"<<endl; goto error; } ListenSocket=socket(AF_INET, SOCK_RAW,IPPROTO_IP); if(ListenSocket==INVALID_SOCKET) { cout<<"failed in socket()"<<WSAGetLastError()<<endl; goto error; } if(setsockopt(ListenSocket,IPPROTO_IP,IP_HDRINCL,(char*)&flag,sizeof(int))==SOCKET_ERROR) { cout<<"failed in setsockopt(IPP)"<<WSAGetLastError()<<endl; goto error; } struct hostent* phost; char hostname[100]={'\0'}; gethostname(hostname,100); phost=gethostbyname(hostname); int Sourcelen=sizeof(SourceAddr); SourceAddr.sin_family=AF_INET; SourceAddr.sin_port=htons(10000); memcpy(&SourceAddr.sin_addr.s_addr,phost->h_addr_list[0],phost->h_length); if(bind(ListenSocket,(struct sockaddr*)&SourceAddr,Sourcelen)!=0) { cout<<"failed in bind()"<<endl; goto error; } DWORD dwBuffIn=1; DWORD dwBuffOut[10]; DWORD dwBytesReturned =0; if(WSAIoctl(ListenSocket,SIO_RCVALL,&dwBuffIn,sizeof(dwBuffIn),dwBuffOut,sizeof(dwBuffOut),&dwBytesReturned,NULL,NULL)<0){ cout<<"failed in WSAIoctl()"<<endl; goto error; } int bytes_recv=0; while(true) { memset(recvbuff,0x00,sizeof(recvbuff)); bytes_recv=recv(ListenSocket,recvbuff,sizeof(recvbuff),0); if(bytes_recv==0) { continue; cout<<"empty"<<endl; } Decodepkt(recvbuff,sizeof(recvbuff)); } error: WSACleanup(); system("pause"); return 0; } void Decodepkt(char* buff,int len) { IP_HEADER* ip; ip=(pIP_HEADER)buff; string pro=CheckProto(ip->proto); struct in_addr source,dest; source.s_addr=(u_long)ip->sourceIP; dest.s_addr=(u_long)ip->destIP; cout<<"Network:"<<endl; cout<<"Src IP: "<<inet_ntoa(source)<<endl; cout<<"Dest IP: "<<inet_ntoa(dest)<<endl; cout<<"protocal:"<<pro<<endl; int iplen=(ip->h_verlen&0x0f)<<2; if(pro=="TCP") { DecodeTCP(buff+iplen); } else if(pro=="UDP") { DecodeUDP(buff+iplen); } } std::string CheckProto(int pro) { std::string result=""; switch(pro) { case 1: result="ICMP"; break; case 2: result="IGMP"; break; case 3: result="GGP"; break; case 4: result="IP"; break; case 6: result="TCP"; break; case 17: result="UDP"; break; default: result="Invalid protocol"; break; } return result; } void DecodeUDP(char* buff) { pUDP_HEADER udp=(pUDP_HEADER)buff; cout<<"Src Port:"<<ntohs(udp->uh_sport)<<endl; cout<<"Dest Port:"<<ntohs(udp->uh_dport)<<endl; char* data=buff+sizeof(UDP_HEADER); cout<<"Data:"<<data<<endl; } void DecodeTCP(char* buff) { pTCP_HEADER tcp=(pTCP_HEADER)buff; cout<<"Src Port:"<<ntohs(tcp->tcp_sport)<<endl; cout<<"Dest Port:"<<ntohs(tcp->tcp_dport)<<endl; char* data=buff+sizeof(TCP_HEADER); cout<<"Data:"<<data<<endl; } |
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