IP报文的重组：

a)将IP报文存入临时的HASH链表中,这个HASH链表中是等待合并的报文队列头

b)判断当这一个IP报文分片加入后是否可以构造出一个完整的IP报文，如果可以的话，分配一个新的帧缓冲区，将数据复制入新的帧缓冲区，返回该报文。

-IP Packets restructuring:

a) the IP packets into a temporary HASH list, this list is waiting to merge HASH packet queue head

b) to determine if this IP packet whether the patch can be constructed by adding a complete IP packets, if possible, assign a new frame buffer, copy the data into the new frame buffer, the return packet.