信息来源:补天网络- //////////////////////////////////////////////////////////////////////////
- // //
- // GUNiffer For Win2K by Shotgun //
- // //
- // Version: 0.30 Beta //
- // Released: [2001.4] //
- // Author: [Shotgun] //
- // Homepage: //
- // [[url]http://IT.Xici.Net[/url]] //
- // [[url]http://www.Patching.Net[/url]] //
- // //
- //////////////////////////////////////////////////////////////////////////
- #include <math.h>
- #include <stdio.h>
- #include <string.h>
- #include <Winsock2.h>
- #include <mstcpip.h>
- #define STATUS_FAILED 0xFFFF //定义异常出错代码
- #define MAX_PACK_LEN 65535 //接收的最大IP报文
- #define MAX_ADDR_LEN 16 //点分十进制地址的最大长度
- #define MAX_PROTO_TEXT_LEN 16 //子协议名称(如"TCP")最大长度
- #define MAX_PROTO_NUM 12 //子协议数量
- #define MAX_HOSTNAME_LAN 255 //最大主机名长度
- #define CMD_PARAM_HELP true
- typedef struct _iphdr
- {
- unsigned char h_lenver; //4位首部长度+4位IP版本号
- unsigned char tos; //8位服务类型TOS
- unsigned short total_len; //16位总长度(字节)
- unsigned short ident; //16位标识
- unsigned short frag_and_flags; //3位标志位
- unsigned char ttl; //8位生存时间 TTL
- unsigned char proto; //8位协议 (TCP, UDP 或其他)
- unsigned short checksum; //16位IP首部校验和
- unsigned int sourceIP; //32位源IP地址
- unsigned int destIP; //32位目的IP地址
- }IP_HEADER;
- typedef struct _tcphdr //定义TCP首部
- {
- USHORT th_sport; //16位源端口
- USHORT th_dport; //16位目的端口
- unsigned int th_seq; //32位序列号
- unsigned int th_ack; //32位确认号
- unsigned char th_lenres; //4位首部长度/6位保留字
- unsigned char th_flag; //6位标志位
- USHORT th_win; //16位窗口大小
- USHORT th_sum; //16位校验和
- USHORT th_urp; //16位紧急数据偏移量
- }TCP_HEADER;
- typedef struct _udphdr //定义UDP首部
- {
- unsigned short uh_sport; //16位源端口
- unsigned short uh_dport; //16位目的端口
- unsigned short uh_len; //16位长度
- unsigned short uh_sum; //16位校验和
- } UDP_HEADER;
- typedef struct _icmphdr //定义ICMP首部
- {
- BYTE i_type; //8位类型
- BYTE i_code; //8位代码
- USHORT i_cksum; //16位校验和
- USHORT i_id; //识别号(一般用进程号作为识别号)
- USHORT i_seq; //报文序列号
- ULONG timestamp; //时间戳
- }ICMP_HEADER;
- typedef struct _protomap //定义子协议映射表
- {
- int ProtoNum;
- char ProtoText[MAX_PROTO_TEXT_LEN];
- }PROTOMAP;
- PROTOMAP ProtoMap[MAX_PROTO_NUM]={ //为子协议映射表赋值
- { IPPROTO_IP , "IP " },
- { IPPROTO_ICMP , "ICMP" },
- { IPPROTO_IGMP , "IGMP" },
- { IPPROTO_GGP , "GGP " },
- { IPPROTO_TCP , "TCP " },
- { IPPROTO_PUP , "PUP " },
- { IPPROTO_UDP , "UDP " },
- { IPPROTO_IDP , "IDP " },
- { IPPROTO_ND , "NP " },
- { IPPROTO_RAW , "RAW " },
- { IPPROTO_MAX , "MAX " },
- { NULL , "" } };
- SOCKET SockRaw;
- char TcpFlag[6]={'F','S','R','P','A','U'}; //定义TCP标志位
- bool ParamTcp =false; // -t关注TCP 报文
- bool ParamUdp =false; // -u关注UDP 报文
- bool ParamIcmp =false; // -i关注ICMP报文
- bool ParamDecode=false; // -d对协议进行解码
- char *strFromIpFilter=NULL; // 源IP地址过滤
- char *strDestIpFilter=NULL; // 目的地址过滤
- char *strSensitive=NULL; // 敏感字符串
- int iPortFilter=0; // 端口过滤
- int iProtocol, iTTL;
- char szProtocol[MAX_PROTO_TEXT_LEN];
- char szSourceIP[MAX_ADDR_LEN], szDestIP[MAX_ADDR_LEN];
- int DecodeIpPack(char *, int); //IP解包函数
- int DecodeTcpPack(char *, int); //TCP解包函数
- int DecodeUdpPack(char *, int); //UDP解包函数
- int DecodeIcmpPack(char *, int); //ICMP解包函数
- void CheckSockError(int, char*); //出错处理函数
- char * CheckProtocol(int); //协议检查
- void usage(void); //使用说明
- bool GetCmdLine(int, char **); //命令行参数处理
- void main(int argc, char ** argv)
- {
- int iErrorCode;
- char RecvBuf[MAX_PACK_LEN] = {0};
- usage();
- if(GetCmdLine(argc, argv)==CMD_PARAM_HELP) exit(0);
- //初始化SOCKET
- WSADATA wsaData;
- iErrorCode = WSAStartup(MAKEWORD(2,1),&wsaData);
- CheckSockError(iErrorCode, "WSAStartup");
- SockRaw = socket(AF_INET , SOCK_RAW , IPPROTO_IP);
- CheckSockError(SockRaw, "socket");
- //获取本机IP地址
- char FAR name[MAX_HOSTNAME_LAN];
- iErrorCode = gethostname(name, MAX_HOSTNAME_LAN);
- CheckSockError(iErrorCode, "gethostname");
- struct hostent FAR * pHostent;
- pHostent = (struct hostent * )malloc(sizeof(struct hostent));
- pHostent = gethostbyname(name);
- SOCKADDR_IN sa;
- sa.sin_family = AF_INET;
- sa.sin_port = htons(6000);
- memcpy(&sa.sin_addr.S_un.S_addr, pHostent->h_addr_list[0], pHostent->h_length);
- free(pHostent);
- iErrorCode = bind(SockRaw, (PSOCKADDR)&sa, sizeof(sa));
- CheckSockError(iErrorCode, "bind");
- //设置SOCK_RAW为SIO_RCVALL,以便接收所有的IP包
- DWORD dwBufferLen[10] ;
- DWORD dwBufferInLen = 1 ;
- DWORD dwBytesReturned = 0 ;
- iErrorCode=WSAIoctl(SockRaw, SIO_RCVALL,&dwBufferInLen, sizeof(dwBufferInLen),
- &dwBufferLen, sizeof(dwBufferLen),&dwBytesReturned , NULL , NULL );
- CheckSockError(iErrorCode, "Ioctl");
- //侦听IP报文
- while(1)
- {
- memset(RecvBuf, 0, sizeof(RecvBuf));
- iErrorCode = recv(SockRaw, RecvBuf, sizeof(RecvBuf), 0);
- CheckSockError(iErrorCode, "recv");
- iErrorCode = DecodeIpPack(RecvBuf, iErrorCode);
- CheckSockError(iErrorCode, "Decode");
- }
- }
- //IP解包程序
- int DecodeIpPack(char *buf, int iBufSize)
- {
- IP_HEADER *pIpheader;
- SOCKADDR_IN saSource, saDest;
- pIpheader = (IP_HEADER *)buf;
- //协议甄别
- iProtocol = pIpheader->proto;
- strncpy(szProtocol, CheckProtocol(iProtocol), MAX_PROTO_TEXT_LEN);
- if((iProtocol==IPPROTO_TCP) && (!ParamTcp)) return true;
- if((iProtocol==IPPROTO_UDP) && (!ParamUdp)) return true;
- if((iProtocol==IPPROTO_ICMP) && (!ParamIcmp)) return true;
- //源地址
- saSource.sin_addr.s_addr = pIpheader->sourceIP;
- strncpy(szSourceIP, inet_ntoa(saSource.sin_addr), MAX_ADDR_LEN);
- if (strFromIpFilter)
- if (strcmp(strFromIpFilter,szSourceIP)) return true;
- //目的地址
- saDest.sin_addr.s_addr = pIpheader->destIP;
- strncpy(szDestIP, inet_ntoa(saDest.sin_addr), MAX_ADDR_LEN);
- if (strDestIpFilter)
- if (strcmp(strDestIpFilter,szDestIP)) return true;
- iTTL = pIpheader->ttl;
- //计算IP首部的长度
- int iIphLen = sizeof(unsigned long) * (pIpheader->h_lenver & 0xf);
- //根据协议类型分别调用相应的函数
- switch(iProtocol)
- {
- case IPPROTO_TCP :DecodeTcpPack(buf+iIphLen, iBufSize);break;
- case IPPROTO_UDP :DecodeUdpPack(buf+iIphLen, iBufSize);break;
- case IPPROTO_ICMP :DecodeIcmpPack(buf+iIphLen, iBufSize);break;
- default :break;
- }
- //printf("\n");
- return true;
- }
- //协议识别程序
- char * CheckProtocol(int iProtocol)
- {
- for(int i=0; i<MAX_PROTO_NUM; i++)
- if(ProtoMap[i].ProtoNum==iProtocol)
- return ProtoMap[i].ProtoText;
- return "";
- }
- //TCP解包程序
- int DecodeTcpPack(char * TcpBuf, int iBufSize)
- {
- TCP_HEADER * pTcpHeader;
- int i;
- int iSourcePort,iDestPort;
-
- pTcpHeader = (TCP_HEADER * )TcpBuf;
- //计算TCP首部长度
- int TcpHeaderLen = pTcpHeader->th_lenres>>4;
- TcpHeaderLen *= sizeof(unsigned long);
- char * TcpData=TcpBuf+TcpHeaderLen;
- //如果过滤敏感字符串则判断是否包含
- if (strSensitive)
- if ((strstr(TcpData, strSensitive))==NULL) return true;
- //对端口进行过滤
- iSourcePort = ntohs(pTcpHeader->th_sport);
- iDestPort = ntohs(pTcpHeader->th_dport);
- if ((iPortFilter) && (iSourcePort!=iPortFilter) && (iDestPort!=iPortFilter))
- return true;
- //输出
- printf("%s ", szProtocol);
- printf("%15s:%5d ->%15s:%5d ", szSourceIP, iSourcePort, szDestIP, iDestPort);
- printf("TTL=%3d ", iTTL);
- //判断TCP标志位
- unsigned char FlagMask = 1;
- for( i=0; i<6; i++ )
- {
- if((pTcpHeader->th_flag) & FlagMask) printf("%c",TcpFlag[i]);
- else printf("-");
- FlagMask=FlagMask<<1;
- }
- printf(" bytes=%4d", iBufSize);
- printf("\n");
- //对于长度大于40字节的包进行数据分析(IP_HEADER+TCP_HEADER=40)
- if ((ParamDecode) && (iBufSize>40))
- {
- //分析TCP数据段
- if ((!strSensitive) || (strstr(TcpData,strSensitive)))
- {
- printf(" [DATA]\n");
- printf("%s",TcpData);
- printf("\n [DATA END]\n\n\n");
- }
- }
- return true;
- }
- //UDP解包程序
- int DecodeUdpPack(char * UdpBuf, int iBufSize)
- {
- UDP_HEADER *pUdpHeader;
- pUdpHeader = (UDP_HEADER * )UdpBuf;
- int iSourcePort = ntohs(pUdpHeader->uh_sport);
- int iDestPort = ntohs(pUdpHeader->uh_dport);
- //对端口进行过滤
- if(iPortFilter)
- if ((iSourcePort!=iPortFilter) && (iDestPort!=iPortFilter))
- return true;
- printf("%s ", szProtocol);
- printf("%15s:%5d ->%15s:%5d ", szSourceIP, iSourcePort, szDestIP, iDestPort);
- printf("TTL=%3d ", iTTL);
- printf("Len=%4d ", ntohs(pUdpHeader->uh_len));
- printf("bytes=%4d", iBufSize);
- printf("\n");
- //对于长度大于28字节的包进行数据分析(IP_HEADER+UDP_HEADER>28)
- if ((ParamDecode) && (iBufSize>28))
- {
- printf(" [DATA]\n");
- //UDP首部长度为8
- char * UdpData=UdpBuf+8;
- //分析UDP数据段
- for(unsigned int i=0;i<(iBufSize-sizeof(UDP_HEADER));i++)
- {
- if (!(i%8)) printf("\n");
- if ( (UdpData[i]>33) && (UdpData[i]<122) )
- printf("%3c [%3x]", UdpData[i], UdpData[i]);
- else printf(" [%3x]", abs(UdpData[i]));
- }
- printf("\n [DATA END]\n\n\n");
- }
- return true;
- }
- //ICMP解包程序
- int DecodeIcmpPack(char * IcmpBuf, int iBufSize)
- {
- ICMP_HEADER * pIcmpHeader;
- pIcmpHeader = (ICMP_HEADER * )IcmpBuf;
- int iIcmpType = pIcmpHeader->i_type;
- int iIcmpCode = pIcmpHeader->i_code;
- //对类型进行过滤
- if ((iPortFilter) && (iIcmpType!=iPortFilter)) return true;
- printf("%s ", szProtocol);
- //printf("%15s Type%d ->%15s Code%d ", szSourceIP, iIcmpType, szDestIP, iIcmpCode);
- printf("%15s ->%15s ", szSourceIP, szDestIP);
- printf("TTL=%3d ", iTTL);
- printf("Type%2d,%d ",iIcmpType,iIcmpCode);
- printf("bytes=%4d", iBufSize);
- printf("\n");
- //对于包含数据段的包进行数据分析
- if ((ParamDecode) && (iBufSize>28))
- {
- char * IcmpData=IcmpBuf+4;
- //分析ICMP数据段
- printf(" [DATA]");
- for(unsigned int i=0;i<(iBufSize-sizeof(ICMP_HEADER));i++)
- {
- if (!(i%8)) printf("\n");
- if ( (IcmpData[i]>33) && (IcmpData[i]<122) )
- printf("%3c [%3x]", IcmpData[i], IcmpData[i]);
- else printf(" [%3x]", abs(IcmpData[i]));
- }
- printf("\n [DATA END]\n\n\n");
- }
- return true;
- }
- //命令行参数处理
- bool GetCmdLine(int argc, char ** argv)
- {
- if (argc<2) return CMD_PARAM_HELP;
- for(int i=1;i<argc;i++)
- {
- if(argv[i][0]!='/') return CMD_PARAM_HELP;
- else switch (argv[i][1])
- {
- case 't':
- case 'T': ParamTcp=true; break;
- case 'u':
- case 'U': ParamUdp=true; break;
- case 'i':
- case 'I': ParamIcmp=true; break;
- case 'p':
- case 'P': ParamDecode=true; break;
- case 'f':
- case 'F':
- {
- strFromIpFilter=(char*)malloc(16*sizeof(char));
- memset(strFromIpFilter,0,16*sizeof(char));
- strcpy(strFromIpFilter,argv[i]+3);
- break;
- }
- case 'd':
- case 'D':
- {
- strDestIpFilter=(char*)malloc(16*sizeof(char));
- memset(strDestIpFilter,0,16*sizeof(char));
- strcpy(strDestIpFilter,argv[i]+3);
- break;
- }
- case 's':
- case 'S':
- {
- strSensitive=(char*)malloc(255*sizeof(char));
- memset(strSensitive,0,255*sizeof(char));
- strcpy(strSensitive,argv[i]+3);
- break;
- }
- case 'o':
- case 'O':
- {
- iPortFilter=atoi(argv[i]+3);
- break;
- }
- }
- }
- printf("\nWill Sniffer");
- if(ParamTcp) printf(" TCP");
- if(ParamUdp) printf(" UDP");
- if(ParamIcmp) printf(" ICMP");
- if(strFromIpFilter) printf(" FromIp:%s",strFromIpFilter);
- if(strDestIpFilter) printf(" DestIp:%s",strDestIpFilter);
- if(ParamDecode) printf(" DECODE ON");
- if(strSensitive) printf(" Sensitive String:'%s'",strSensitive);
- printf("\n\tCTRL+C to quit\nStart:\n");
- return (!CMD_PARAM_HELP);
- }
- //使用说明
- void usage(void)
- {
- printf("GUNiffer\n");
- printf("\tSinffer for Win2K By Shotgun (Ver 0.3)\n");
- printf("\[email]tShotgun@Xici.net[/email]\n");
- printf("\thttp://It.Xici.Net\n");
- printf("\thttp://www.Patching.Net\n\n");
- printf("USAGE:\n");
- printf("\t/t Output TCP Packets\n");
- printf("\t/u Output UDP Packets\n");
- printf("\t/i Output ICMP Packets\n");
- printf("\t/p Decode Packets (default OFF)\n");
- printf("\t/f: fromIP Output Packets FromIp=fromIP (default ALL)\n");
- printf("\t/d: destIP Output Packets DestIp=destIP (default ALL)\n");
- printf("\t/s: string Output Packets Include sensitive String(TCP only)\n");
- printf("\t/o: port Output Packets from or to the port(ICMP is TYPE)\n");
- printf("Example:\n");
- printf("\tGUNiffer.exe /d>GUNiffer.log\n");
- printf("\tGUNiffer.exe /t /u /f:192.168.15.231\n");
- printf("\tGUNiffer.exe /t /p /s:PASS\n");
- }
- //SOCK错误处理程序
- void CheckSockError(int iErrorCode, char *pErrorMsg)
- {
- if(iErrorCode==SOCKET_ERROR)
- {
- printf("%s Error:%d\n", pErrorMsg, GetLastError());
- closesocket(SockRaw);
- exit(0);
- }
-
- }
复制代码 |