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实时TCP报文还原中的内存管理
引用本文:邓月华,刘嘉勇,胡天麟.实时TCP报文还原中的内存管理[J].兵工自动化,2006,25(3):50-51.
作者姓名:邓月华  刘嘉勇  胡天麟
作者单位:四川大学,电子信息学院,四川,成都,610054
摘    要:基于宽带网络嗅探的实时TCP报文还原处理IP包缓存和TCP连接相关信息维护的内存管理.其工作流程为:捕获MAC帧、检查TCP连接、缓存IP包、连接结束或超时拆除TCP连接、IP包空间释放.内存管理在每个IP包头加上固定字节的包信息.存储包时同时存储包信息及下一个IP包位置信息,且只需维护第一个包位置、当前包位置以及连接维持时间等信息即可.

关 键 词:TCP报文  内存管理  IP包缓存  TCP连接  宽带网络嗅探  报文  内存管理  Message  Management  维持时间  位置信息  信息维护  存储  固定  包头  空间  拆除  接结  检查  流程  工作  相关  连接  缓存  还原处理
文章编号:1006-1576(2006)03-0050-02
收稿时间:2005-10-17
修稿时间:2005-11-10

Memory Management in Recovering of Real-time TCP Message
DENG Yue-hua,LIU Jia-yong,HU Tian-lin.Memory Management in Recovering of Real-time TCP Message[J].Ordnance Industry Automation,2006,25(3):50-51.
Authors:DENG Yue-hua  LIU Jia-yong  HU Tian-lin
Abstract:The recovering of real-time TCP message based on wide-band networks sniffer deals with memory management for buffer memory of IP packets and TCP connection maintenance. Its work process includes: capturing MAC frame, checking TCP connection, temporarily storing IP packets, unchaining TCP connection when connection finished or overtime, and releasing the memory used by IP packets. A fix position is placed at the head of every IP packet in memory management. When a packet is saved, its message and the position of the next IP packet are saved too. Furthermore, the maintenance work can be only concentrated on the position of the first packet and current packet and the length of connection maintenance.
Keywords:TCP message  Memory management  IP packet buffer memory  TCP connection  Wide-band networks sniffer  
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