Re: Intercepting VFS calls

[Jan Kara <jack@suse.cz>]

> Frederik Deweerdt wrote:
> 
> > Le 20/06/05 12:37 +0200, Przemyslaw Sowa écrivit:
> >  
> >
> >> Hello,
> >>
> >> I'd like to intercept VFS calls like read() and write() in 2.6
> kernels but I'm new in kernel development and I don't know how to do
> it.
> >>
> >> Could you help me, please?
> >>
> >>   
> >
> > You could have a look at kprobes.
> > Regards,
> > Frederik Deweerdt
> >
> >  
> >
> Thank you for the answer, but I need some way to execute my own
> function (from a module) instead of read(), wrte()... and I don't want
> to use any kernel patch. Is it possible?
  It's impossible without patching the kernel. Why do you want to
intercept the calls? Isn't it enough to intercept the system calls? Then
you can do it from the userspace by tracing the process.

								Honza

-- 
Jan Kara <jack@suse.cz>
SuSE CR Labs
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