包已经发出，但是伪造IP，无法实现3次握手，在服务器端，包将被丢弃。继续研究。
// stdafx.h : 标准系统包含文件的包含文件，
// 或是经常使用但不常更改的
// 特定于项目的包含文件
//
#pragma once
#include "targetver.h"
#include <stdio.h>
#include <tchar.h>
#include <iostream>
using namespace std;
typedef unsigned short USHORT;
typedef unsigned char UCHAR;
#define URG 0x20
#define ACK 0x10
#define PSH 0x08
#define RST 0x04
#define SYN 0x02
#define FIN 0x01
typedef struct ip_hdr //定义IP首部
{
unsigned char h_verlen; //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
}IPHEADER;
typedef struct tsd_hdr //定义TCP伪首部
{
unsigned long saddr; //源地址
unsigned long daddr; //目的地址
char mbz;
char ptcl; //协议类型
unsigned short tcpl; //TCP长度
}PSDHEADER;
typedef struct tcp_hdr //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
}TCPHEADER;
// TODO: 在此处引用程序需要的其他头文件
#include "StdAfx.h"
#include "HttpWeb.h"
#include <winsock2.h>
#include <ws2tcpip.h>
#pragma comment(lib,"ws2_32.lib")
#define winsock_version 0x0101
//CheckSum:计算校验和的子函数
USHORT HttpWeb::checksum(USHORT *buffer, int size)
{
unsigned long cksum=0;
while(size >1)
{
cksum += *buffer++;
size -= sizeof(USHORT);
}
if(size)
{
cksum += *(UCHAR*)buffer;
}
cksum = (cksum >> 16) + (cksum & 0xffff);
cksum += (cksum >>16);
return (USHORT)(~cksum);
};
HttpWeb::HttpWeb(void)
{
}
HttpWeb::~HttpWeb(void)
{
}
void UseAge()
{
printf("********************************************************************\n");
printf("Vote For yeshj\n");
printf("\t Written by yurow\n");
printf("\t Email: yurow@163.com\n");
printf("\t Blog: birdshover.cnblogs.com\n");
printf("Useage: sniffer ip to vote\n");
printf("********************************************************************\n");
}
bool HttpWeb::Post(char host[], char path[], char parms[],int port)
{
UseAge();
WSADATA WSAData;
SOCKET sock;
SOCKADDR_IN addr_in;
IPHEADER ipHeader;
TCPHEADER tcpHeader;
PSDHEADER psdHeader;
char szSendBuf[4000] = {0};
BOOL flag;
int rect,nTimeOver;
if (WSAStartup(MAKEWORD(2,2), &WSAData)!=0)
{
printf("WSAStartup Error!\n");
return false;
}
if ((sock = WSASocket(AF_INET,SOCK_RAW,IPPROTO_RAW,NULL,0,WSA_FLAG_OVERLAPPED)) == INVALID_SOCKET)
{
printf("Socket Setup Error!\n");
return false;
}
flag=true;
if (setsockopt(sock,IPPROTO_IP, IP_HDRINCL,(char *)&flag,sizeof(flag)) == SOCKET_ERROR)
{
printf("setsockopt IP_HDRINCL error!\n");
return false;
}
nTimeOver=1000;
if (setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, (char*)&nTimeOver, sizeof(nTimeOver)) == SOCKET_ERROR)
{
printf("setsockopt SO_SNDTIMEO error!\n");
return false;
}
char requestString[4000] = {0};
if(strlen(parms) > 0)
strcat(requestString,"POST ");
else
strcat(requestString,"GET ");
strcat(requestString,path);
strcat(requestString," HTTP/1.1\r\n");
strcat(requestString,"Host: ");
strcat(requestString,host);
strcat(requestString,"\r\nAccept: */*\r\n");
strcat(requestString,"Accept-Language: zh-cn\r\n");
strcat(requestString,"User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.2; Trident/4.0;)\r\n");
strcat(requestString,"Accept-Encoding: gzip, deflate\r\n");
strcat(requestString,"Connection: Keep-Alive\r\n");
if(strlen(parms) > 0){
strcat(requestString,"Content-Type: application/x-www-form-urlencoded\r\n");
strcat(requestString,"Content-Length: ");
char * p = new char[4];
itoa(strlen(parms),p,10);
strcat(requestString,p);
strcat(requestString,"\r\n\r\n");
strcat(requestString,parms);
strcat(requestString,"\r\n\r\n");
}
cout << requestString;
int postDataLength = strlen(requestString);
LPHOSTENT lphostent = gethostbyname(host);
addr_in.sin_family = AF_INET;
addr_in.sin_port = htons(port);
//addr_in.sin_addr= *((LPIN_ADDR)*lphostent->h_addr_list);
addr_in.sin_addr = *(in_addr *)lphostent->h_addr_list[0];
//填充IP首部
ipHeader.h_verlen=( 4<<4 | sizeof(ipHeader)/sizeof(unsigned long));
//ipHeader.tos=0;
ipHeader.total_len = htons(sizeof(ipHeader) + sizeof(tcpHeader));
ipHeader.ident=1;
ipHeader.frag_and_flags=0;
ipHeader.ttl = 128;
ipHeader.proto = IPPROTO_TCP;
ipHeader.checksum = 0;
ipHeader.sourceIP = inet_addr("192.168.19.1");
ipHeader.destIP = addr_in.sin_addr.S_un.S_addr;
//填充TCP首部
tcpHeader.th_dport = htons(port); //目标端口
tcpHeader.th_sport=htons(4000); //源端口号
tcpHeader.th_seq = htonl(0x12345678);
tcpHeader.th_ack=0;
tcpHeader.th_lenres = (sizeof(tcpHeader) / 4 <<4| 0);
tcpHeader.th_flag = 2; //修改这里来实现不同的标志位探测，2是SYN，1是FIN，16是ACK探测 等等
tcpHeader.th_win= htons(512);
tcpHeader.th_urp=0;
tcpHeader.th_sum=0;
psdHeader.saddr = ipHeader.sourceIP;
psdHeader.daddr = ipHeader.destIP;
psdHeader.mbz = 0;
psdHeader.ptcl = IPPROTO_TCP;
psdHeader.tcpl = htons(sizeof(tcpHeader));
//计算校验和
memcpy(szSendBuf, &psdHeader, sizeof(psdHeader));
memcpy(szSendBuf+sizeof(psdHeader), &tcpHeader, sizeof(tcpHeader));
tcpHeader.th_sum=checksum((USHORT *)szSendBuf,sizeof(psdHeader)+sizeof(tcpHeader));
memcpy(szSendBuf, &ipHeader, sizeof(ipHeader));
memcpy(szSendBuf+sizeof(ipHeader), &tcpHeader, sizeof(tcpHeader));
memset(szSendBuf+sizeof(ipHeader)+sizeof(tcpHeader), 0, 4);
ipHeader.checksum=checksum((USHORT *)szSendBuf, sizeof(ipHeader)+sizeof(tcpHeader));
memcpy(szSendBuf, &ipHeader, sizeof(ipHeader));
memcpy(szSendBuf + sizeof(ipHeader)+sizeof(tcpHeader),requestString,postDataLength);
cout << szSendBuf << endl;
rect=sendto(sock, szSendBuf, sizeof(ipHeader)+sizeof(tcpHeader) + postDataLength, 0, (struct sockaddr*)&addr_in, sizeof(addr_in));
cout << rect << "\t" << sizeof(ipHeader) + sizeof(tcpHeader) + postDataLength << endl;
if (rect == SOCKET_ERROR || rect > 10000L)
{
printf("send error!:%d\n",WSAGetLastError());
return false;
}
else
printf("send ok!\n");
closesocket(sock);
WSACleanup();
return false;
}
posted on 2008-11-10 16:43
BirdsHover 阅读(3248)
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