Re: [LIP] Re:Re:System calls

suresh try having a look at LSM it does precisely what you want to do u may
get some information there

-SIGTERM
amit

----- Original Message -----
From: "suresh kumar" <suresh_vin-/iAzse42w/[email protected]>
To: <linux-india-programmers-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>
Sent: Friday, December 05, 2003 11:31 AM
Subject: [LIP] Re:Re:System calls


> >> defined in module. This
> >> user defined function later on calls the actual open
> >> system call, its just
> >> like putting a block in between the chain. Please
> >> see the following code.
> >
> >> Declare sys_call_table as extern variable in you
> >> module code
> >
> >> extern void *sys_call_table[];
>
> >sys_call_table[] is not exported from kern
> >2.4.X...atleast 2.4.18 doesnot export it. so u cant
> >change a system call that way.
>  Seems what u said is true. If that is the case, how do I proceed further
for operations which I have described, and the reason why they have removed
sys_call_table from the symbol table. Tried to look in to lkml but it was
too huge and am distracted looking in to other queries(laughing).
>  One more thing, all the system calls have asmlinkage, and this macro
tells the gcc that the arguments come from the stack not from the registers.
Exactly, I didnt follow what does that mean. If I know the reason perhaps I
would know why that requirement for, for system calls.
> Some one throw some light over this.
> cheers
> Suresh
> >
> > Regards,
> > Gaurav.
> >
>
> --
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