Re: Writing system calls.

[Mark McLoughlin <mark@csn.ul.ie>]

On Wed, 7 Mar 2001, Dragos, Radu wrote:

> Does anyone know a good documentation about writing new system calls ??
>
> Thanks.

here's a link to some lab work for a university module on the subject
http://www.cc.gatech.edu/classes/AY2001/cs3210_fall/labs/syscalls.html

and there was also a pretty interesting article on using modules for
cracking that was based heavily on intercepting syscalls. I have only
a hardcopy of it, the original webpage has disappeared, but you
might be able to find a copy somewhere googling for
"linux kernel modules pragmatic"

It's a useful thing for getting to understand the kernel, I think,
but I doubt anyone would have a serious need to do it.

Good Luck,
Mark

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