Beispiel #1
0
        //这个使用来计算校验码的我照抄c#实现ping那文章的方法,反正ip协议计算校验码方法都一样
        public syn(uint _ip, ushort _port, EndPoint _ep, Random _rand)
        {
            ip   = _ip;
            port = _port;
            ep   = _ep;
            rand = _rand;
            ipHeader iph = new ipHeader();

            psh  = new psdHeader();
            tch  = new tcpHeader();
            sock = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.IP);
            sock.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.HeaderIncluded, 1);
            //这2个挺重要,必须这样才可以自己提供ip头
        }
Beispiel #2
0
        //这个是把tcp伪首部转为字节数组用的
        public Int32 tchto(tcpHeader tch, byte[] buffer, int size)
        {
            Int32 rtn;
            int   index = 0;

            byte[] b_tch_sport  = BitConverter.GetBytes(tch.th_sport);
            byte[] b_tch_dport  = BitConverter.GetBytes(tch.th_dport);
            byte[] b_tch_seq    = BitConverter.GetBytes(tch.th_seq);
            byte[] b_tch_ack    = BitConverter.GetBytes(tch.th_ack);
            byte[] b_tch_lenres = new byte[1];
            b_tch_lenres[0] = tch.th_lenres;
            byte[] b_tch_flag = new byte[1];
            b_tch_flag[0] = tch.th_flag;
            byte[] b_tch_win = BitConverter.GetBytes(tch.th_win);
            byte[] b_tch_sum = BitConverter.GetBytes(tch.th_sum);
            byte[] b_tch_urp = BitConverter.GetBytes(tch.th_urp);
            Array.Copy(b_tch_sport, 0, buffer, index, b_tch_sport.Length);
            index += b_tch_sport.Length;
            Array.Copy(b_tch_dport, 0, buffer, index, b_tch_dport.Length);
            index += b_tch_dport.Length;
            Array.Copy(b_tch_seq, 0, buffer, index, b_tch_seq.Length);
            index += b_tch_seq.Length;
            Array.Copy(b_tch_ack, 0, buffer, index, b_tch_ack.Length);
            index += b_tch_ack.Length;
            Array.Copy(b_tch_lenres, 0, buffer, index, b_tch_lenres.Length);
            index += b_tch_lenres.Length;
            Array.Copy(b_tch_flag, 0, buffer, index, b_tch_flag.Length);
            index += b_tch_flag.Length;
            Array.Copy(b_tch_win, 0, buffer, index, b_tch_win.Length);
            index += b_tch_win.Length;
            Array.Copy(b_tch_sum, 0, buffer, index, b_tch_sum.Length);
            index += b_tch_sum.Length;
            Array.Copy(b_tch_urp, 0, buffer, index, b_tch_urp.Length);
            index += b_tch_urp.Length;
            if (index != size)
            {
                rtn = -1;
                return(rtn);
            }
            else
            {
                rtn = index;
                return(rtn);
            }
        }
Beispiel #3
0
 //这个使用来计算校验码的我照抄c#实现ping那文章的方法,反正ip协议计算校验码方法都一样
 public syn(uint _ip, ushort _port, EndPoint _ep, Random _rand)
 {
     ip = _ip;
     port = _port;
     ep = _ep;
     rand = _rand;
     ipHeader iph = new ipHeader();
     psh = new psdHeader();
     tch = new tcpHeader();
     sock = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.IP);
     sock.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.HeaderIncluded, 1);
     //这2个挺重要,必须这样才可以自己提供ip头
 }
Beispiel #4
0
 //这个是把tcp伪首部转为字节数组用的
 public Int32 tchto(tcpHeader tch, byte[] buffer, int size)
 {
     Int32 rtn;
     int index = 0;
     byte[] b_tch_sport = BitConverter.GetBytes(tch.th_sport);
     byte[] b_tch_dport = BitConverter.GetBytes(tch.th_dport);
     byte[] b_tch_seq = BitConverter.GetBytes(tch.th_seq);
     byte[] b_tch_ack = BitConverter.GetBytes(tch.th_ack);
     byte[] b_tch_lenres = new byte[1];
     b_tch_lenres[0] = tch.th_lenres;
     byte[] b_tch_flag = new byte[1];
     b_tch_flag[0] = tch.th_flag;
     byte[] b_tch_win = BitConverter.GetBytes(tch.th_win);
     byte[] b_tch_sum = BitConverter.GetBytes(tch.th_sum);
     byte[] b_tch_urp = BitConverter.GetBytes(tch.th_urp);
     Array.Copy(b_tch_sport, 0, buffer, index, b_tch_sport.Length);
     index += b_tch_sport.Length;
     Array.Copy(b_tch_dport, 0, buffer, index, b_tch_dport.Length);
     index += b_tch_dport.Length;
     Array.Copy(b_tch_seq, 0, buffer, index, b_tch_seq.Length);
     index += b_tch_seq.Length;
     Array.Copy(b_tch_ack, 0, buffer, index, b_tch_ack.Length);
     index += b_tch_ack.Length;
     Array.Copy(b_tch_lenres, 0, buffer, index, b_tch_lenres.Length);
     index += b_tch_lenres.Length;
     Array.Copy(b_tch_flag, 0, buffer, index, b_tch_flag.Length);
     index += b_tch_flag.Length;
     Array.Copy(b_tch_win, 0, buffer, index, b_tch_win.Length);
     index += b_tch_win.Length;
     Array.Copy(b_tch_sum, 0, buffer, index, b_tch_sum.Length);
     index += b_tch_sum.Length;
     Array.Copy(b_tch_urp, 0, buffer, index, b_tch_urp.Length);
     index += b_tch_urp.Length;
     if (index != size)
     {
         rtn = -1;
         return rtn;
     }
     else
     {
         rtn = index;
         return rtn;
     }
 }