Subject: Re: TPE for NetBSD
To: Bill Studenmund <firstname.lastname@example.org>
From: Brett Lymn <email@example.com>
Date: 06/05/2001 10:48:22
According to Bill Studenmund:
>One thing you might try is making it a layered file system.
Mmmmm that is a good thought. I will put up what I have done since I
know that it works and have a look at doing a layered fs. It
certainly makes a lot of sense.
>The advantage of using a file system is that you have to hack into a lot
>fewer code points - the kernel already asks the FS if it can execute a
Yes, this is very true. At the moment the code hits very few of the
kernel files (most of the guff is actually to implement a
pseudo-device for loading the signatures) but if I want to intercept
the open and mmap calls then doing all the checks at the file system
layer sounds like a better approach.
Brett Lymn, Computer Systems Administrator, BAE SYSTEMS