系统调用与操作系统安全

System Call and Computer Operation System Security

该文介绍了有关系统调用方面的一些概念,将具体的系统调用模式通过抽象的概念加以表述,通过对系统调用类的分析,借助一定的集合理论,对系统调用类加以刻画,分析系统调用与安全性的关系,并提出了相应的见解,以在操作系统调用级提供安全性的环境,然后给出了一些系统调用的途径,并对每一种途径的优缺点给予表述。这样做的目的在于为安全操作系统的开发提供一定程度的指导,使得人们在某些方面不必要按照旧的模式走,创造出具有自主特色的操作系统。

This article provides some new concepts based on system calls in compute r operation system and presents abstract model of system calls.First,the paper analyses the system calls based on the set theory and provides the rela-tionship between system calls and computer operation system security,so as to offer the security circumstance for opera-tion system.Second,it provides some entrances into system calls and present s advantages and disadvantages for each entrance.Through the above analyses,some rules are provided for the developer of computer operation system.It can de-velop new operation system based on new model instead of the old ones by ourselves.