筛选器驱动程序是否打算扩展系统驱动程序? [英] Are filter drivers intended to extend system drivers?

问题描述

过滤器驱动程序是否打算扩展系统驱动程序?

Are filter drivers intended to extend system drivers?

这是他们的主要目的吗?

Is this their main purpose?

它们基本上只是位于驱动程序和用户之间的一个额外层吗?

Are they basically just an extra layer that sits between the driver and the user?

这似乎太简单了，我想知道是否遗漏了一些东西.

This seems overly simple an explanation and I am wondering if I am missing something.

有没有更好的方法来了解更多信息?

Are there good ways to learn more?

推荐答案

是的.

例如，如果文件系统过滤器驱动程序用于文件加密/压缩/安全性，则它将增强文件系统功能.

For example, if file system filter driver is for file encryption/compression/security, it is enhancing the file system functionality.

筛选器驱动程序不处理与实际设备的通话.他们依靠较低级别的驱动程序与设备进行通信.筛选器驱动程序是驱动程序的附加组件，以实现某些功能.修改数据/请求的主动驱动程序将增强原始驱动程序，而被动过滤器驱动程序只是直通，而没有任何直接增强.

The filter driver does not handle talking to actual devices. They rely on lower level drivers to communicate with device. The filter drivers are add-on to the drivers to implement certain functionality. The active drivers which modify data/request are to enhance vanilla drivers while the passive filter drivers are just pass-throughs without any direct enhancements.

所以我认为您的假设是正确的. 还是想听听不同的看法.

So I think your assumptions are correct. Will like to hear different views though.

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